193 files changed, 128439 insertions, 0 deletions

diff --git a/libs/luajit-cmake/luajit/src/.gitignore b/libs/luajit-cmake/luajit/src/.gitignore
new file mode 100644
index 0000000..1a30573
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/.gitignore
@@ -0,0 +1,7 @@
+luajit
+lj_bcdef.h
+lj_ffdef.h
+lj_libdef.h
+lj_recdef.h
+lj_folddef.h
+lj_vm.[sS]
diff --git a/libs/luajit-cmake/luajit/src/Makefile b/libs/luajit-cmake/luajit/src/Makefile
new file mode 100644
index 0000000..30d64be
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/Makefile
@@ -0,0 +1,726 @@
+##############################################################################
+# LuaJIT Makefile. Requires GNU Make.
+#
+# Please read doc/install.html before changing any variables!
+#
+# Suitable for POSIX platforms (Linux, *BSD, OSX etc.).
+# Also works with MinGW and Cygwin on Windows.
+# Please check msvcbuild.bat for building with MSVC on Windows.
+#
+# Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+##############################################################################
+
+MAJVER=  2
+MINVER=  1
+RELVER=  0
+ABIVER=  5.1
+NODOTABIVER= 51
+
+##############################################################################
+#############################  COMPILER OPTIONS  #############################
+##############################################################################
+# These options mainly affect the speed of the JIT compiler itself, not the
+# speed of the JIT-compiled code. Turn any of the optional settings on by
+# removing the '#' in front of them. Make sure you force a full recompile
+# with "make clean", followed by "make" if you change any options.
+#
+DEFAULT_CC = gcc
+#
+# LuaJIT builds as a native 32 or 64 bit binary by default.
+CC= $(DEFAULT_CC)
+#
+# Use this if you want to force a 32 bit build on a 64 bit multilib OS.
+#CC= $(DEFAULT_CC) -m32
+#
+# Since the assembler part does NOT maintain a frame pointer, it's pointless
+# to slow down the C part by not omitting it. Debugging, tracebacks and
+# unwinding are not affected -- the assembler part has frame unwind
+# information and GCC emits it where needed (x64) or with -g (see CCDEBUG).
+CCOPT= -O2 -fomit-frame-pointer
+# Use this if you want to generate a smaller binary (but it's slower):
+#CCOPT= -Os -fomit-frame-pointer
+# Note: it's no longer recommended to use -O3 with GCC 4.x.
+# The I-Cache bloat usually outweighs the benefits from aggressive inlining.
+#
+# Target-specific compiler options:
+#
+# x86/x64 only: For GCC 4.2 or higher and if you don't intend to distribute
+# the binaries to a different machine you could also use: -march=native
+#
+CCOPT_x86= -march=i686 -msse -msse2 -mfpmath=sse
+CCOPT_x64=
+CCOPT_arm=
+CCOPT_arm64=
+CCOPT_ppc=
+CCOPT_mips=
+#
+CCDEBUG=
+# Uncomment the next line to generate debug information:
+#CCDEBUG= -g
+#
+CCWARN= -Wall
+# Uncomment the next line to enable more warnings:
+#CCWARN+= -Wextra -Wdeclaration-after-statement -Wredundant-decls -Wshadow -Wpointer-arith
+#
+##############################################################################
+
+##############################################################################
+################################  BUILD MODE  ################################
+##############################################################################
+# The default build mode is mixed mode on POSIX. On Windows this is the same
+# as dynamic mode.
+#
+# Mixed mode creates a static + dynamic library and a statically linked luajit.
+BUILDMODE= mixed
+#
+# Static mode creates a static library and a statically linked luajit.
+#BUILDMODE= static
+#
+# Dynamic mode creates a dynamic library and a dynamically linked luajit.
+# Note: this executable will only run when the library is installed!
+#BUILDMODE= dynamic
+#
+##############################################################################
+
+##############################################################################
+#################################  FEATURES  #################################
+##############################################################################
+# Enable/disable these features as needed, but make sure you force a full
+# recompile with "make clean", followed by "make".
+XCFLAGS=
+#
+# Permanently disable the FFI extension to reduce the size of the LuaJIT
+# executable. But please consider that the FFI library is compiled-in,
+# but NOT loaded by default. It only allocates any memory, if you actually
+# make use of it.
+#XCFLAGS+= -DLUAJIT_DISABLE_FFI
+#
+# Features from Lua 5.2 that are unlikely to break existing code are
+# enabled by default. Some other features that *might* break some existing
+# code (e.g. __pairs or os.execute() return values) can be enabled here.
+# Note: this does not provide full compatibility with Lua 5.2 at this time.
+#XCFLAGS+= -DLUAJIT_ENABLE_LUA52COMPAT
+#
+# Disable the JIT compiler, i.e. turn LuaJIT into a pure interpreter.
+#XCFLAGS+= -DLUAJIT_DISABLE_JIT
+#
+# Some architectures (e.g. PPC) can use either single-number (1) or
+# dual-number (2) mode. Uncomment one of these lines to override the
+# default mode. Please see LJ_ARCH_NUMMODE in lj_arch.h for details.
+#XCFLAGS+= -DLUAJIT_NUMMODE=1
+#XCFLAGS+= -DLUAJIT_NUMMODE=2
+#
+# Disable LJ_GC64 mode for x64.
+#XCFLAGS+= -DLUAJIT_DISABLE_GC64
+#
+##############################################################################
+
+##############################################################################
+############################  DEBUGGING SUPPORT  #############################
+##############################################################################
+# Enable these options as needed, but make sure you force a full recompile
+# with "make clean", followed by "make".
+# Note that most of these are NOT suitable for benchmarking or release mode!
+#
+# Use the system provided memory allocator (realloc) instead of the
+# bundled memory allocator. This is slower, but sometimes helpful for
+# debugging. This option cannot be enabled on x64 without GC64, since
+# realloc usually doesn't return addresses in the right address range.
+# OTOH this option is mandatory for Valgrind's memcheck tool on x64 and
+# the only way to get useful results from it for all other architectures.
+#XCFLAGS+= -DLUAJIT_USE_SYSMALLOC
+#
+# This define is required to run LuaJIT under Valgrind. The Valgrind
+# header files must be installed. You should enable debug information, too.
+#XCFLAGS+= -DLUAJIT_USE_VALGRIND
+#
+# This is the client for the GDB JIT API. GDB 7.0 or higher is required
+# to make use of it. See lj_gdbjit.c for details. Enabling this causes
+# a non-negligible overhead, even when not running under GDB.
+#XCFLAGS+= -DLUAJIT_USE_GDBJIT
+#
+# Turn on assertions for the Lua/C API to debug problems with lua_* calls.
+# This is rather slow -- use only while developing C libraries/embeddings.
+#XCFLAGS+= -DLUA_USE_APICHECK
+#
+# Turn on assertions for the whole LuaJIT VM. This significantly slows down
+# everything. Use only if you suspect a problem with LuaJIT itself.
+#XCFLAGS+= -DLUA_USE_ASSERT
+#
+##############################################################################
+# You probably don't need to change anything below this line!
+##############################################################################
+
+##############################################################################
+# Host system detection.
+##############################################################################
+
+ifeq (Windows,$(findstring Windows,$(OS))$(MSYSTEM)$(TERM))
+  HOST_SYS= Windows
+else
+  HOST_SYS:= $(shell uname -s)
+  ifneq (,$(findstring MINGW,$(HOST_SYS)))
+    HOST_SYS= Windows
+    HOST_MSYS= mingw
+  endif
+  ifneq (,$(findstring MSYS,$(HOST_SYS)))
+    HOST_SYS= Windows
+    HOST_MSYS= mingw
+  endif
+  ifneq (,$(findstring CYGWIN,$(HOST_SYS)))
+    HOST_SYS= Windows
+    HOST_MSYS= cygwin
+  endif
+endif
+
+##############################################################################
+# Flags and options for host and target.
+##############################################################################
+
+# You can override the following variables at the make command line:
+#   CC       HOST_CC       STATIC_CC       DYNAMIC_CC
+#   CFLAGS   HOST_CFLAGS   TARGET_CFLAGS
+#   LDFLAGS  HOST_LDFLAGS  TARGET_LDFLAGS  TARGET_SHLDFLAGS
+#   LIBS     HOST_LIBS     TARGET_LIBS
+#   CROSS    HOST_SYS      TARGET_SYS      TARGET_FLAGS
+#
+# Cross-compilation examples:
+#   make HOST_CC="gcc -m32" CROSS=i586-mingw32msvc- TARGET_SYS=Windows
+#   make HOST_CC="gcc -m32" CROSS=powerpc-linux-gnu-
+
+ASOPTIONS= $(CCOPT) $(CCWARN) $(XCFLAGS) $(CFLAGS)
+CCOPTIONS= $(CCDEBUG) $(ASOPTIONS)
+LDOPTIONS= $(CCDEBUG) $(LDFLAGS)
+
+HOST_CC= $(CC)
+HOST_RM?= rm -f
+# If left blank, minilua is built and used. You can supply an installed
+# copy of (plain) Lua 5.1 or 5.2, plus Lua BitOp. E.g. with: HOST_LUA=lua
+HOST_LUA=
+
+HOST_XCFLAGS= -I.
+HOST_XLDFLAGS=
+HOST_XLIBS=
+HOST_ACFLAGS= $(CCOPTIONS) $(HOST_XCFLAGS) $(TARGET_ARCH) $(HOST_CFLAGS)
+HOST_ALDFLAGS= $(LDOPTIONS) $(HOST_XLDFLAGS) $(HOST_LDFLAGS)
+HOST_ALIBS= $(HOST_XLIBS) $(LIBS) $(HOST_LIBS)
+
+STATIC_CC = $(CROSS)$(CC)
+DYNAMIC_CC = $(CROSS)$(CC) -fPIC
+TARGET_CC= $(STATIC_CC)
+TARGET_STCC= $(STATIC_CC)
+TARGET_DYNCC= $(DYNAMIC_CC)
+TARGET_LD= $(CROSS)$(CC)
+TARGET_AR= $(CROSS)ar rcus
+TARGET_STRIP= $(CROSS)strip
+
+TARGET_LIBPATH= $(or $(PREFIX),/usr/local)/$(or $(MULTILIB),lib)
+TARGET_SONAME= libluajit-$(ABIVER).so.$(MAJVER)
+TARGET_DYLIBNAME= libluajit-$(ABIVER).$(MAJVER).dylib
+TARGET_DYLIBPATH= $(TARGET_LIBPATH)/$(TARGET_DYLIBNAME)
+TARGET_DLLNAME= lua$(NODOTABIVER).dll
+TARGET_DLLDOTANAME= libluajit-$(ABIVER).dll.a
+TARGET_XSHLDFLAGS= -shared -fPIC -Wl,-soname,$(TARGET_SONAME)
+TARGET_DYNXLDOPTS=
+
+TARGET_LFSFLAGS= -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
+TARGET_XCFLAGS= $(TARGET_LFSFLAGS) -U_FORTIFY_SOURCE
+TARGET_XLDFLAGS=
+TARGET_XLIBS= -lm
+TARGET_TCFLAGS= $(CCOPTIONS) $(TARGET_XCFLAGS) $(TARGET_FLAGS) $(TARGET_CFLAGS)
+TARGET_ACFLAGS= $(CCOPTIONS) $(TARGET_XCFLAGS) $(TARGET_FLAGS) $(TARGET_CFLAGS)
+TARGET_ASFLAGS= $(ASOPTIONS) $(TARGET_XCFLAGS) $(TARGET_FLAGS) $(TARGET_CFLAGS)
+TARGET_ALDFLAGS= $(LDOPTIONS) $(TARGET_XLDFLAGS) $(TARGET_FLAGS) $(TARGET_LDFLAGS)
+TARGET_ASHLDFLAGS= $(LDOPTIONS) $(TARGET_XSHLDFLAGS) $(TARGET_FLAGS) $(TARGET_SHLDFLAGS)
+TARGET_ALIBS= $(TARGET_XLIBS) $(LIBS) $(TARGET_LIBS)
+
+TARGET_TESTARCH=$(shell $(TARGET_CC) $(TARGET_TCFLAGS) -E lj_arch.h -dM)
+ifneq (,$(findstring LJ_TARGET_X64 ,$(TARGET_TESTARCH)))
+  TARGET_LJARCH= x64
+else
+ifneq (,$(findstring LJ_TARGET_X86 ,$(TARGET_TESTARCH)))
+  TARGET_LJARCH= x86
+else
+ifneq (,$(findstring LJ_TARGET_ARM ,$(TARGET_TESTARCH)))
+  TARGET_LJARCH= arm
+else
+ifneq (,$(findstring LJ_TARGET_ARM64 ,$(TARGET_TESTARCH)))
+  ifneq (,$(findstring __AARCH64EB__ ,$(TARGET_TESTARCH)))
+    TARGET_ARCH= -D__AARCH64EB__=1
+  endif
+  TARGET_LJARCH= arm64
+else
+ifneq (,$(findstring LJ_TARGET_PPC ,$(TARGET_TESTARCH)))
+  ifneq (,$(findstring LJ_LE 1,$(TARGET_TESTARCH)))
+    TARGET_ARCH= -DLJ_ARCH_ENDIAN=LUAJIT_LE
+  else
+    TARGET_ARCH= -DLJ_ARCH_ENDIAN=LUAJIT_BE
+  endif
+  TARGET_LJARCH= ppc
+else
+ifneq (,$(findstring LJ_TARGET_MIPS ,$(TARGET_TESTARCH)))
+  ifneq (,$(findstring MIPSEL ,$(TARGET_TESTARCH)))
+    TARGET_ARCH= -D__MIPSEL__=1
+  endif
+  ifneq (,$(findstring LJ_TARGET_MIPS64 ,$(TARGET_TESTARCH)))
+    TARGET_LJARCH= mips64
+  else
+    TARGET_LJARCH= mips
+  endif
+else
+  $(error Unsupported target architecture)
+endif
+endif
+endif
+endif
+endif
+endif
+
+ifneq (,$(findstring LJ_TARGET_PS3 1,$(TARGET_TESTARCH)))
+  TARGET_SYS= PS3
+  TARGET_ARCH+= -D__CELLOS_LV2__
+  TARGET_XCFLAGS+= -DLUAJIT_USE_SYSMALLOC
+  TARGET_XLIBS+= -lpthread
+endif
+
+TARGET_XCFLAGS+= $(CCOPT_$(TARGET_LJARCH))
+TARGET_ARCH+= $(patsubst %,-DLUAJIT_TARGET=LUAJIT_ARCH_%,$(TARGET_LJARCH))
+
+ifneq (,$(PREFIX))
+ifneq (/usr/local,$(PREFIX))
+  TARGET_XCFLAGS+= -DLUA_ROOT=\"$(PREFIX)\"
+  ifneq (/usr,$(PREFIX))
+    TARGET_DYNXLDOPTS= -Wl,-rpath,$(TARGET_LIBPATH)
+  endif
+endif
+endif
+ifneq (,$(MULTILIB))
+  TARGET_XCFLAGS+= -DLUA_MULTILIB=\"$(MULTILIB)\"
+endif
+ifneq (,$(LMULTILIB))
+  TARGET_XCFLAGS+= -DLUA_LMULTILIB=\"$(LMULTILIB)\"
+endif
+
+##############################################################################
+# Target system detection.
+##############################################################################
+
+TARGET_SYS?= $(HOST_SYS)
+ifeq (Windows,$(TARGET_SYS))
+  TARGET_STRIP+= --strip-unneeded
+  TARGET_XSHLDFLAGS= -shared -Wl,--out-implib,$(TARGET_DLLDOTANAME)
+  TARGET_DYNXLDOPTS=
+else
+  TARGET_AR+= 2>/dev/null
+ifeq (,$(shell $(TARGET_CC) -o /dev/null -c -x c /dev/null -fno-stack-protector 2>/dev/null || echo 1))
+  TARGET_XCFLAGS+= -fno-stack-protector
+endif
+ifeq (Darwin,$(TARGET_SYS))
+  ifeq (,$(MACOSX_DEPLOYMENT_TARGET))
+    $(error missing: export MACOSX_DEPLOYMENT_TARGET=XX.YY)
+  endif
+  TARGET_STRIP+= -x
+  TARGET_XCFLAGS+= -DLUAJIT_UNWIND_EXTERNAL
+  TARGET_XSHLDFLAGS= -dynamiclib -single_module -undefined dynamic_lookup -fPIC
+  TARGET_DYNXLDOPTS=
+  TARGET_XSHLDFLAGS+= -install_name $(TARGET_DYLIBPATH) -compatibility_version $(MAJVER).$(MINVER) -current_version $(MAJVER).$(MINVER).$(RELVER)
+else
+ifeq (iOS,$(TARGET_SYS))
+  TARGET_STRIP+= -x
+  TARGET_XSHLDFLAGS= -dynamiclib -single_module -undefined dynamic_lookup -fPIC
+  TARGET_DYNXLDOPTS=
+  TARGET_XSHLDFLAGS+= -install_name $(TARGET_DYLIBPATH) -compatibility_version $(MAJVER).$(MINVER) -current_version $(MAJVER).$(MINVER).$(RELVER)
+  ifeq (arm64,$(TARGET_LJARCH))
+    TARGET_XCFLAGS+= -fno-omit-frame-pointer
+  endif
+else
+  ifeq (,$(findstring LJ_NO_UNWIND 1,$(TARGET_TESTARCH)))
+    # Find out whether the target toolchain always generates unwind tables.
+    TARGET_TESTUNWIND=$(shell exec 2>/dev/null; echo 'extern void b(void);int a(void){b();return 0;}' | $(TARGET_CC) -c -x c - -o tmpunwind.o && { grep -qa -e eh_frame -e __unwind_info tmpunwind.o || grep -qU -e eh_frame -e __unwind_info tmpunwind.o; } && echo E; rm -f tmpunwind.o)
+    ifneq (,$(findstring E,$(TARGET_TESTUNWIND)))
+      TARGET_XCFLAGS+= -DLUAJIT_UNWIND_EXTERNAL
+    endif
+  endif
+  ifneq (SunOS,$(TARGET_SYS))
+    ifneq (PS3,$(TARGET_SYS))
+      TARGET_XLDFLAGS+= -Wl,-E
+    endif
+  endif
+  ifeq (Linux,$(TARGET_SYS))
+    TARGET_XLIBS+= -ldl
+  endif
+  ifeq (GNU/kFreeBSD,$(TARGET_SYS))
+    TARGET_XLIBS+= -ldl
+  endif
+endif
+endif
+endif
+
+ifneq ($(HOST_SYS),$(TARGET_SYS))
+  ifeq (Windows,$(TARGET_SYS))
+    HOST_XCFLAGS+= -malign-double -DLUAJIT_OS=LUAJIT_OS_WINDOWS
+  else
+  ifeq (Linux,$(TARGET_SYS))
+    HOST_XCFLAGS+= -DLUAJIT_OS=LUAJIT_OS_LINUX
+  else
+  ifeq (Darwin,$(TARGET_SYS))
+    HOST_XCFLAGS+= -DLUAJIT_OS=LUAJIT_OS_OSX
+  else
+  ifeq (iOS,$(TARGET_SYS))
+    HOST_XCFLAGS+= -DLUAJIT_OS=LUAJIT_OS_OSX -DTARGET_OS_IPHONE=1
+  else
+    HOST_XCFLAGS+= -DLUAJIT_OS=LUAJIT_OS_OTHER
+  endif
+  endif
+  endif
+  endif
+endif
+
+ifneq (,$(CCDEBUG))
+  TARGET_STRIP= @:
+endif
+
+##############################################################################
+# Files and pathnames.
+##############################################################################
+
+MINILUA_O= host/minilua.o
+MINILUA_LIBS= -lm
+MINILUA_T= host/minilua
+MINILUA_X= $(MINILUA_T)
+
+ifeq (,$(HOST_LUA))
+  HOST_LUA= $(MINILUA_X)
+  DASM_DEP= $(MINILUA_T)
+endif
+
+DASM_DIR= ../dynasm
+DASM= $(HOST_LUA) $(DASM_DIR)/dynasm.lua
+DASM_XFLAGS=
+DASM_AFLAGS=
+DASM_ARCH= $(TARGET_LJARCH)
+
+ifneq (,$(findstring LJ_LE 1,$(TARGET_TESTARCH)))
+  DASM_AFLAGS+= -D ENDIAN_LE
+else
+  DASM_AFLAGS+= -D ENDIAN_BE
+endif
+ifneq (,$(findstring LJ_ARCH_BITS 64,$(TARGET_TESTARCH)))
+  DASM_AFLAGS+= -D P64
+endif
+ifneq (,$(findstring LJ_HASJIT 1,$(TARGET_TESTARCH)))
+  DASM_AFLAGS+= -D JIT
+endif
+ifneq (,$(findstring LJ_HASFFI 1,$(TARGET_TESTARCH)))
+  DASM_AFLAGS+= -D FFI
+endif
+ifneq (,$(findstring LJ_DUALNUM 1,$(TARGET_TESTARCH)))
+  DASM_AFLAGS+= -D DUALNUM
+endif
+ifneq (,$(findstring LJ_ARCH_HASFPU 1,$(TARGET_TESTARCH)))
+  DASM_AFLAGS+= -D FPU
+  TARGET_ARCH+= -DLJ_ARCH_HASFPU=1
+else
+  TARGET_ARCH+= -DLJ_ARCH_HASFPU=0
+endif
+ifeq (,$(findstring LJ_ABI_SOFTFP 1,$(TARGET_TESTARCH)))
+  DASM_AFLAGS+= -D HFABI
+  TARGET_ARCH+= -DLJ_ABI_SOFTFP=0
+else
+  TARGET_ARCH+= -DLJ_ABI_SOFTFP=1
+endif
+ifneq (,$(findstring LJ_NO_UNWIND 1,$(TARGET_TESTARCH)))
+  DASM_AFLAGS+= -D NO_UNWIND
+  TARGET_ARCH+= -DLUAJIT_NO_UNWIND
+endif
+DASM_AFLAGS+= -D VER=$(subst LJ_ARCH_VERSION_,,$(filter LJ_ARCH_VERSION_%,$(subst LJ_ARCH_VERSION ,LJ_ARCH_VERSION_,$(TARGET_TESTARCH))))
+ifeq (Windows,$(TARGET_SYS))
+  DASM_AFLAGS+= -D WIN
+endif
+ifeq (x64,$(TARGET_LJARCH))
+  ifeq (,$(findstring LJ_FR2 1,$(TARGET_TESTARCH)))
+    DASM_ARCH= x86
+  endif
+else
+ifeq (arm,$(TARGET_LJARCH))
+  ifeq (iOS,$(TARGET_SYS))
+    DASM_AFLAGS+= -D IOS
+  endif
+else
+ifneq (,$(findstring LJ_TARGET_MIPSR6 ,$(TARGET_TESTARCH)))
+  DASM_AFLAGS+= -D MIPSR6
+endif
+ifeq (ppc,$(TARGET_LJARCH))
+  ifneq (,$(findstring LJ_ARCH_SQRT 1,$(TARGET_TESTARCH)))
+    DASM_AFLAGS+= -D SQRT
+  endif
+  ifneq (,$(findstring LJ_ARCH_ROUND 1,$(TARGET_TESTARCH)))
+    DASM_AFLAGS+= -D ROUND
+  endif
+  ifneq (,$(findstring LJ_ARCH_PPC32ON64 1,$(TARGET_TESTARCH)))
+    DASM_AFLAGS+= -D GPR64
+  endif
+  ifeq (PS3,$(TARGET_SYS))
+    DASM_AFLAGS+= -D PPE -D TOC
+  endif
+endif
+endif
+endif
+
+DASM_FLAGS= $(DASM_XFLAGS) $(DASM_AFLAGS)
+DASM_DASC= vm_$(DASM_ARCH).dasc
+
+BUILDVM_O= host/buildvm.o host/buildvm_asm.o host/buildvm_peobj.o \
+	   host/buildvm_lib.o host/buildvm_fold.o
+BUILDVM_T= host/buildvm
+BUILDVM_X= $(BUILDVM_T)
+
+HOST_O= $(MINILUA_O) $(BUILDVM_O)
+HOST_T= $(MINILUA_T) $(BUILDVM_T)
+
+LJVM_S= lj_vm.S
+LJVM_O= lj_vm.o
+LJVM_BOUT= $(LJVM_S)
+LJVM_MODE= elfasm
+
+LJLIB_O= lib_base.o lib_math.o lib_bit.o lib_string.o lib_table.o \
+	 lib_io.o lib_os.o lib_package.o lib_debug.o lib_jit.o lib_ffi.o \
+	 lib_buffer.o
+LJLIB_C= $(LJLIB_O:.o=.c)
+
+LJCORE_O= lj_assert.o lj_gc.o lj_err.o lj_char.o lj_bc.o lj_obj.o lj_buf.o \
+	  lj_str.o lj_tab.o lj_func.o lj_udata.o lj_meta.o lj_debug.o \
+	  lj_prng.o lj_state.o lj_dispatch.o lj_vmevent.o lj_vmmath.o \
+	  lj_strscan.o lj_strfmt.o lj_strfmt_num.o lj_serialize.o \
+	  lj_api.o lj_profile.o \
+	  lj_lex.o lj_parse.o lj_bcread.o lj_bcwrite.o lj_load.o \
+	  lj_ir.o lj_opt_mem.o lj_opt_fold.o lj_opt_narrow.o \
+	  lj_opt_dce.o lj_opt_loop.o lj_opt_split.o lj_opt_sink.o \
+	  lj_mcode.o lj_snap.o lj_record.o lj_crecord.o lj_ffrecord.o \
+	  lj_asm.o lj_trace.o lj_gdbjit.o \
+	  lj_ctype.o lj_cdata.o lj_cconv.o lj_ccall.o lj_ccallback.o \
+	  lj_carith.o lj_clib.o lj_cparse.o \
+	  lj_lib.o lj_alloc.o lib_aux.o \
+	  $(LJLIB_O) lib_init.o
+
+LJVMCORE_O= $(LJVM_O) $(LJCORE_O)
+LJVMCORE_DYNO= $(LJVMCORE_O:.o=_dyn.o)
+
+LIB_VMDEF= jit/vmdef.lua
+LIB_VMDEFP= $(LIB_VMDEF)
+
+LUAJIT_O= luajit.o
+LUAJIT_A= libluajit.a
+LUAJIT_SO= libluajit.so
+LUAJIT_T= luajit
+
+ALL_T= $(LUAJIT_T) $(LUAJIT_A) $(LUAJIT_SO) $(HOST_T)
+ALL_HDRGEN= lj_bcdef.h lj_ffdef.h lj_libdef.h lj_recdef.h lj_folddef.h \
+	    host/buildvm_arch.h
+ALL_GEN= $(LJVM_S) $(ALL_HDRGEN) $(LIB_VMDEFP)
+WIN_RM= *.obj *.lib *.exp *.dll *.exe *.manifest *.pdb *.ilk
+ALL_RM= $(ALL_T) $(ALL_GEN) *.o host/*.o $(WIN_RM)
+
+##############################################################################
+# Build mode handling.
+##############################################################################
+
+# Mixed mode defaults.
+TARGET_O= $(LUAJIT_A)
+TARGET_T= $(LUAJIT_T) $(LUAJIT_SO)
+TARGET_DEP= $(LIB_VMDEF) $(LUAJIT_SO)
+
+ifeq (Windows,$(TARGET_SYS))
+  TARGET_DYNCC= $(STATIC_CC)
+  LJVM_MODE= peobj
+  LJVM_BOUT= $(LJVM_O)
+  LUAJIT_T= luajit.exe
+  ifeq (cygwin,$(HOST_MSYS))
+    LUAJIT_SO= cyg$(TARGET_DLLNAME)
+  else
+    LUAJIT_SO= $(TARGET_DLLNAME)
+  endif
+  # Mixed mode is not supported on Windows. And static mode doesn't work well.
+  # C modules cannot be loaded, because they bind to lua51.dll.
+  ifneq (static,$(BUILDMODE))
+    BUILDMODE= dynamic
+    TARGET_XCFLAGS+= -DLUA_BUILD_AS_DLL
+  endif
+endif
+ifeq (Darwin,$(TARGET_SYS))
+  LJVM_MODE= machasm
+endif
+ifeq (iOS,$(TARGET_SYS))
+  LJVM_MODE= machasm
+endif
+ifeq (SunOS,$(TARGET_SYS))
+  BUILDMODE= static
+endif
+ifeq (PS3,$(TARGET_SYS))
+  BUILDMODE= static
+endif
+
+ifeq (Windows,$(HOST_SYS))
+  MINILUA_T= host/minilua.exe
+  BUILDVM_T= host/buildvm.exe
+  ifeq (,$(HOST_MSYS))
+    MINILUA_X= host\minilua
+    BUILDVM_X= host\buildvm
+    ALL_RM:= $(subst /,\,$(ALL_RM))
+    HOST_RM= del
+  endif
+endif
+
+ifeq (static,$(BUILDMODE))
+  TARGET_DYNCC= @:
+  TARGET_T= $(LUAJIT_T)
+  TARGET_DEP= $(LIB_VMDEF)
+else
+ifeq (dynamic,$(BUILDMODE))
+  ifneq (Windows,$(TARGET_SYS))
+    TARGET_CC= $(DYNAMIC_CC)
+  endif
+  TARGET_DYNCC= @:
+  LJVMCORE_DYNO= $(LJVMCORE_O)
+  TARGET_O= $(LUAJIT_SO)
+  TARGET_XLDFLAGS+= $(TARGET_DYNXLDOPTS)
+else
+ifeq (Darwin,$(TARGET_SYS))
+  TARGET_DYNCC= @:
+  LJVMCORE_DYNO= $(LJVMCORE_O)
+endif
+ifeq (iOS,$(TARGET_SYS))
+  TARGET_DYNCC= @:
+  LJVMCORE_DYNO= $(LJVMCORE_O)
+endif
+endif
+endif
+
+Q= @
+E= @echo
+#Q=
+#E= @:
+
+##############################################################################
+# Make targets.
+##############################################################################
+
+default all:	$(TARGET_T)
+
+amalg:
+	$(MAKE) all "LJCORE_O=ljamalg.o"
+
+clean:
+	$(HOST_RM) $(ALL_RM)
+
+libbc:
+	./$(LUAJIT_T) host/genlibbc.lua -o host/buildvm_libbc.h $(LJLIB_C)
+	$(MAKE) all
+
+depend:
+	@for file in $(ALL_HDRGEN); do \
+	  test -f $$file || touch $$file; \
+	  done
+	@$(HOST_CC) $(HOST_ACFLAGS) -MM *.c host/*.c | \
+	  sed -e "s| [^ ]*/dasm_\S*\.h||g" \
+	      -e "s|^\([^l ]\)|host/\1|" \
+	      -e "s| lj_target_\S*\.h| lj_target_*.h|g" \
+	      -e "s| lj_emit_\S*\.h| lj_emit_*.h|g" \
+	      -e "s| lj_asm_\S*\.h| lj_asm_*.h|g" >Makefile.dep
+	@for file in $(ALL_HDRGEN); do \
+	  test -s $$file || $(HOST_RM) $$file; \
+	  done
+
+.PHONY: default all amalg clean libbc depend
+
+##############################################################################
+# Rules for generated files.
+##############################################################################
+
+$(MINILUA_T): $(MINILUA_O)
+	$(E) "HOSTLINK  $@"
+	$(Q)$(HOST_CC) $(HOST_ALDFLAGS) -o $@ $(MINILUA_O) $(MINILUA_LIBS) $(HOST_ALIBS)
+
+host/buildvm_arch.h: $(DASM_DASC) $(DASM_DEP) $(DASM_DIR)/*.lua lj_arch.h lua.h luaconf.h
+	$(E) "DYNASM    $@"
+	$(Q)$(DASM) $(DASM_FLAGS) -o $@ $(DASM_DASC)
+
+host/buildvm.o: $(DASM_DIR)/dasm_*.h
+
+$(BUILDVM_T): $(BUILDVM_O)
+	$(E) "HOSTLINK  $@"
+	$(Q)$(HOST_CC) $(HOST_ALDFLAGS) -o $@ $(BUILDVM_O) $(HOST_ALIBS)
+
+$(LJVM_BOUT): $(BUILDVM_T)
+	$(E) "BUILDVM   $@"
+	$(Q)$(BUILDVM_X) -m $(LJVM_MODE) -o $@
+
+lj_bcdef.h: $(BUILDVM_T) $(LJLIB_C)
+	$(E) "BUILDVM   $@"
+	$(Q)$(BUILDVM_X) -m bcdef -o $@ $(LJLIB_C)
+
+lj_ffdef.h: $(BUILDVM_T) $(LJLIB_C)
+	$(E) "BUILDVM   $@"
+	$(Q)$(BUILDVM_X) -m ffdef -o $@ $(LJLIB_C)
+
+lj_libdef.h: $(BUILDVM_T) $(LJLIB_C)
+	$(E) "BUILDVM   $@"
+	$(Q)$(BUILDVM_X) -m libdef -o $@ $(LJLIB_C)
+
+lj_recdef.h: $(BUILDVM_T) $(LJLIB_C)
+	$(E) "BUILDVM   $@"
+	$(Q)$(BUILDVM_X) -m recdef -o $@ $(LJLIB_C)
+
+$(LIB_VMDEF): $(BUILDVM_T) $(LJLIB_C)
+	$(E) "BUILDVM   $@"
+	$(Q)$(BUILDVM_X) -m vmdef -o $(LIB_VMDEFP) $(LJLIB_C)
+
+lj_folddef.h: $(BUILDVM_T) lj_opt_fold.c
+	$(E) "BUILDVM   $@"
+	$(Q)$(BUILDVM_X) -m folddef -o $@ lj_opt_fold.c
+
+##############################################################################
+# Object file rules.
+##############################################################################
+
+%.o: %.c
+	$(E) "CC        $@"
+	$(Q)$(TARGET_DYNCC) $(TARGET_ACFLAGS) -c -o $(@:.o=_dyn.o) $<
+	$(Q)$(TARGET_CC) $(TARGET_ACFLAGS) -c -o $@ $<
+
+%.o: %.S
+	$(E) "ASM       $@"
+	$(Q)$(TARGET_DYNCC) $(TARGET_ASFLAGS) -c -o $(@:.o=_dyn.o) $<
+	$(Q)$(TARGET_CC) $(TARGET_ASFLAGS) -c -o $@ $<
+
+$(LUAJIT_O):
+	$(E) "CC        $@"
+	$(Q)$(TARGET_STCC) $(TARGET_ACFLAGS) -c -o $@ $<
+
+$(HOST_O): %.o: %.c
+	$(E) "HOSTCC    $@"
+	$(Q)$(HOST_CC) $(HOST_ACFLAGS) -c -o $@ $<
+
+include Makefile.dep
+
+##############################################################################
+# Target file rules.
+##############################################################################
+
+$(LUAJIT_A): $(LJVMCORE_O)
+	$(E) "AR        $@"
+	$(Q)$(TARGET_AR) $@ $(LJVMCORE_O)
+
+# The dependency on _O, but linking with _DYNO is intentional.
+$(LUAJIT_SO): $(LJVMCORE_O)
+	$(E) "DYNLINK   $@"
+	$(Q)$(TARGET_LD) $(TARGET_ASHLDFLAGS) -o $@ $(LJVMCORE_DYNO) $(TARGET_ALIBS)
+	$(Q)$(TARGET_STRIP) $@
+
+$(LUAJIT_T): $(TARGET_O) $(LUAJIT_O) $(TARGET_DEP)
+	$(E) "LINK      $@"
+	$(Q)$(TARGET_LD) $(TARGET_ALDFLAGS) -o $@ $(LUAJIT_O) $(TARGET_O) $(TARGET_ALIBS)
+	$(Q)$(TARGET_STRIP) $@
+	$(E) "OK        Successfully built LuaJIT"
+
+##############################################################################
diff --git a/libs/luajit-cmake/luajit/src/Makefile.dep b/libs/luajit-cmake/luajit/src/Makefile.dep
new file mode 100644
index 0000000..1ad6701
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/Makefile.dep
@@ -0,0 +1,259 @@
+lib_aux.o: lib_aux.c lua.h luaconf.h lauxlib.h lj_obj.h lj_def.h \
+ lj_arch.h lj_err.h lj_errmsg.h lj_state.h lj_trace.h lj_jit.h lj_ir.h \
+ lj_dispatch.h lj_bc.h lj_traceerr.h lj_lib.h
+lib_base.o: lib_base.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h \
+ lj_def.h lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_debug.h lj_buf.h \
+ lj_str.h lj_tab.h lj_meta.h lj_state.h lj_frame.h lj_bc.h lj_ctype.h \
+ lj_cconv.h lj_ff.h lj_ffdef.h lj_dispatch.h lj_jit.h lj_ir.h lj_char.h \
+ lj_strscan.h lj_strfmt.h lj_lib.h lj_libdef.h
+lib_bit.o: lib_bit.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h lj_def.h \
+ lj_arch.h lj_err.h lj_errmsg.h lj_buf.h lj_gc.h lj_str.h lj_strscan.h \
+ lj_strfmt.h lj_ctype.h lj_cdata.h lj_cconv.h lj_carith.h lj_ff.h \
+ lj_ffdef.h lj_lib.h lj_libdef.h
+lib_buffer.o: lib_buffer.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h \
+ lj_def.h lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_buf.h lj_str.h \
+ lj_tab.h lj_udata.h lj_meta.h lj_ctype.h lj_cdata.h lj_cconv.h \
+ lj_strfmt.h lj_serialize.h lj_lib.h lj_libdef.h
+lib_debug.o: lib_debug.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h \
+ lj_def.h lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_debug.h lj_lib.h \
+ lj_libdef.h
+lib_ffi.o: lib_ffi.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h lj_def.h \
+ lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_meta.h \
+ lj_ctype.h lj_cparse.h lj_cdata.h lj_cconv.h lj_carith.h lj_ccall.h \
+ lj_ccallback.h lj_clib.h lj_strfmt.h lj_ff.h lj_ffdef.h lj_lib.h \
+ lj_libdef.h
+lib_init.o: lib_init.c lua.h luaconf.h lauxlib.h lualib.h lj_arch.h
+lib_io.o: lib_io.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h lj_def.h \
+ lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_buf.h lj_str.h lj_state.h \
+ lj_strfmt.h lj_ff.h lj_ffdef.h lj_lib.h lj_libdef.h
+lib_jit.o: lib_jit.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h lj_def.h \
+ lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_debug.h lj_str.h lj_tab.h \
+ lj_state.h lj_bc.h lj_ctype.h lj_ir.h lj_jit.h lj_ircall.h lj_iropt.h \
+ lj_target.h lj_target_*.h lj_trace.h lj_dispatch.h lj_traceerr.h \
+ lj_vm.h lj_vmevent.h lj_lib.h luajit.h lj_libdef.h
+lib_math.o: lib_math.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h \
+ lj_def.h lj_arch.h lj_lib.h lj_vm.h lj_prng.h lj_libdef.h
+lib_os.o: lib_os.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h lj_def.h \
+ lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_buf.h lj_str.h lj_lib.h \
+ lj_libdef.h
+lib_package.o: lib_package.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h \
+ lj_def.h lj_arch.h lj_err.h lj_errmsg.h lj_lib.h
+lib_string.o: lib_string.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h \
+ lj_def.h lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_buf.h lj_str.h \
+ lj_tab.h lj_meta.h lj_state.h lj_ff.h lj_ffdef.h lj_bcdump.h lj_lex.h \
+ lj_char.h lj_strfmt.h lj_lib.h lj_libdef.h
+lib_table.o: lib_table.c lua.h luaconf.h lauxlib.h lualib.h lj_obj.h \
+ lj_def.h lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_buf.h lj_str.h \
+ lj_tab.h lj_ff.h lj_ffdef.h lj_lib.h lj_libdef.h
+lj_alloc.o: lj_alloc.c lj_def.h lua.h luaconf.h lj_arch.h lj_alloc.h \
+ lj_prng.h
+lj_api.o: lj_api.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_err.h lj_errmsg.h lj_debug.h lj_str.h lj_tab.h lj_func.h lj_udata.h \
+ lj_meta.h lj_state.h lj_bc.h lj_frame.h lj_trace.h lj_jit.h lj_ir.h \
+ lj_dispatch.h lj_traceerr.h lj_vm.h lj_strscan.h lj_strfmt.h
+lj_asm.o: lj_asm.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_buf.h lj_str.h lj_tab.h lj_frame.h lj_bc.h lj_ctype.h lj_ir.h \
+ lj_jit.h lj_ircall.h lj_iropt.h lj_mcode.h lj_trace.h lj_dispatch.h \
+ lj_traceerr.h lj_snap.h lj_asm.h lj_vm.h lj_target.h lj_target_*.h \
+ lj_emit_*.h lj_asm_*.h
+lj_assert.o: lj_assert.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h
+lj_bc.o: lj_bc.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_bc.h \
+ lj_bcdef.h
+lj_bcread.o: lj_bcread.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_buf.h lj_str.h lj_tab.h lj_bc.h \
+ lj_ctype.h lj_cdata.h lualib.h lj_lex.h lj_bcdump.h lj_state.h \
+ lj_strfmt.h
+lj_bcwrite.o: lj_bcwrite.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_buf.h lj_str.h lj_bc.h lj_ctype.h lj_dispatch.h lj_jit.h \
+ lj_ir.h lj_strfmt.h lj_bcdump.h lj_lex.h lj_err.h lj_errmsg.h lj_vm.h
+lj_buf.o: lj_buf.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_err.h lj_errmsg.h lj_buf.h lj_str.h lj_tab.h lj_strfmt.h
+lj_carith.o: lj_carith.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_tab.h lj_meta.h lj_ir.h lj_ctype.h \
+ lj_cconv.h lj_cdata.h lj_carith.h lj_strscan.h
+lj_ccall.o: lj_ccall.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_tab.h lj_ctype.h lj_cconv.h lj_cdata.h \
+ lj_ccall.h lj_trace.h lj_jit.h lj_ir.h lj_dispatch.h lj_bc.h \
+ lj_traceerr.h
+lj_ccallback.o: lj_ccallback.c lj_obj.h lua.h luaconf.h lj_def.h \
+ lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_tab.h lj_state.h lj_frame.h \
+ lj_bc.h lj_ctype.h lj_cconv.h lj_ccall.h lj_ccallback.h lj_target.h \
+ lj_target_*.h lj_mcode.h lj_jit.h lj_ir.h lj_trace.h lj_dispatch.h \
+ lj_traceerr.h lj_vm.h
+lj_cconv.o: lj_cconv.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_err.h lj_errmsg.h lj_buf.h lj_gc.h lj_str.h lj_tab.h lj_ctype.h \
+ lj_cdata.h lj_cconv.h lj_ccallback.h
+lj_cdata.o: lj_cdata.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_tab.h lj_ctype.h lj_cconv.h lj_cdata.h
+lj_char.o: lj_char.c lj_char.h lj_def.h lua.h luaconf.h
+lj_clib.o: lj_clib.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_err.h lj_errmsg.h lj_tab.h lj_str.h lj_udata.h lj_ctype.h lj_cconv.h \
+ lj_cdata.h lj_clib.h lj_strfmt.h
+lj_cparse.o: lj_cparse.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_buf.h lj_str.h lj_ctype.h lj_cparse.h \
+ lj_frame.h lj_bc.h lj_vm.h lj_char.h lj_strscan.h lj_strfmt.h
+lj_crecord.o: lj_crecord.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_err.h lj_errmsg.h lj_tab.h lj_frame.h lj_bc.h lj_ctype.h lj_gc.h \
+ lj_cdata.h lj_cparse.h lj_cconv.h lj_carith.h lj_clib.h lj_ccall.h \
+ lj_ff.h lj_ffdef.h lj_ir.h lj_jit.h lj_ircall.h lj_iropt.h lj_trace.h \
+ lj_dispatch.h lj_traceerr.h lj_record.h lj_ffrecord.h lj_snap.h \
+ lj_crecord.h lj_strfmt.h
+lj_ctype.o: lj_ctype.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_strfmt.h lj_ctype.h \
+ lj_ccallback.h lj_buf.h
+lj_debug.o: lj_debug.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_err.h lj_errmsg.h lj_debug.h lj_buf.h lj_gc.h lj_str.h lj_tab.h \
+ lj_state.h lj_frame.h lj_bc.h lj_strfmt.h lj_jit.h lj_ir.h
+lj_dispatch.o: lj_dispatch.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_err.h lj_errmsg.h lj_buf.h lj_gc.h lj_str.h lj_func.h lj_tab.h \
+ lj_meta.h lj_debug.h lj_state.h lj_frame.h lj_bc.h lj_ff.h lj_ffdef.h \
+ lj_strfmt.h lj_jit.h lj_ir.h lj_ccallback.h lj_ctype.h lj_trace.h \
+ lj_dispatch.h lj_traceerr.h lj_profile.h lj_vm.h luajit.h
+lj_err.o: lj_err.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_err.h \
+ lj_errmsg.h lj_debug.h lj_str.h lj_func.h lj_state.h lj_frame.h lj_bc.h \
+ lj_ff.h lj_ffdef.h lj_trace.h lj_jit.h lj_ir.h lj_dispatch.h \
+ lj_traceerr.h lj_vm.h lj_strfmt.h
+lj_ffrecord.o: lj_ffrecord.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_err.h lj_errmsg.h lj_buf.h lj_gc.h lj_str.h lj_tab.h lj_frame.h \
+ lj_bc.h lj_ff.h lj_ffdef.h lj_ir.h lj_jit.h lj_ircall.h lj_iropt.h \
+ lj_trace.h lj_dispatch.h lj_traceerr.h lj_record.h lj_ffrecord.h \
+ lj_crecord.h lj_vm.h lj_strscan.h lj_strfmt.h lj_serialize.h lj_recdef.h
+lj_func.o: lj_func.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_func.h lj_trace.h lj_jit.h lj_ir.h lj_dispatch.h lj_bc.h \
+ lj_traceerr.h lj_vm.h
+lj_gc.o: lj_gc.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_err.h lj_errmsg.h lj_buf.h lj_str.h lj_tab.h lj_func.h lj_udata.h \
+ lj_meta.h lj_state.h lj_frame.h lj_bc.h lj_ctype.h lj_cdata.h lj_trace.h \
+ lj_jit.h lj_ir.h lj_dispatch.h lj_traceerr.h lj_vm.h
+lj_gdbjit.o: lj_gdbjit.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_debug.h lj_frame.h lj_bc.h lj_buf.h \
+ lj_str.h lj_strfmt.h lj_jit.h lj_ir.h lj_dispatch.h
+lj_ir.o: lj_ir.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_buf.h lj_str.h lj_tab.h lj_ir.h lj_jit.h lj_ircall.h lj_iropt.h \
+ lj_trace.h lj_dispatch.h lj_bc.h lj_traceerr.h lj_ctype.h lj_cdata.h \
+ lj_carith.h lj_vm.h lj_strscan.h lj_serialize.h lj_strfmt.h lj_prng.h
+lj_lex.o: lj_lex.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_err.h lj_errmsg.h lj_buf.h lj_str.h lj_tab.h lj_ctype.h lj_cdata.h \
+ lualib.h lj_state.h lj_lex.h lj_parse.h lj_char.h lj_strscan.h \
+ lj_strfmt.h
+lj_lib.o: lj_lib.c lauxlib.h lua.h luaconf.h lj_obj.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_func.h lj_bc.h \
+ lj_dispatch.h lj_jit.h lj_ir.h lj_ctype.h lj_vm.h lj_strscan.h \
+ lj_strfmt.h lj_lex.h lj_bcdump.h lj_lib.h
+lj_load.o: lj_load.c lua.h luaconf.h lauxlib.h lj_obj.h lj_def.h \
+ lj_arch.h lj_gc.h lj_err.h lj_errmsg.h lj_buf.h lj_str.h lj_func.h \
+ lj_frame.h lj_bc.h lj_vm.h lj_lex.h lj_bcdump.h lj_parse.h
+lj_mcode.o: lj_mcode.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_jit.h lj_ir.h lj_mcode.h lj_trace.h \
+ lj_dispatch.h lj_bc.h lj_traceerr.h lj_prng.h lj_vm.h
+lj_meta.o: lj_meta.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_err.h lj_errmsg.h lj_buf.h lj_str.h lj_tab.h lj_meta.h lj_frame.h \
+ lj_bc.h lj_vm.h lj_strscan.h lj_strfmt.h lj_lib.h
+lj_obj.o: lj_obj.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h
+lj_opt_dce.o: lj_opt_dce.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_ir.h lj_jit.h lj_iropt.h
+lj_opt_fold.o: lj_opt_fold.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_buf.h lj_gc.h lj_str.h lj_tab.h lj_ir.h lj_jit.h lj_ircall.h \
+ lj_iropt.h lj_trace.h lj_dispatch.h lj_bc.h lj_traceerr.h lj_ctype.h \
+ lj_carith.h lj_vm.h lj_strscan.h lj_strfmt.h lj_folddef.h
+lj_opt_loop.o: lj_opt_loop.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_err.h lj_errmsg.h lj_buf.h lj_gc.h lj_str.h lj_ir.h lj_jit.h \
+ lj_iropt.h lj_trace.h lj_dispatch.h lj_bc.h lj_traceerr.h lj_snap.h \
+ lj_vm.h
+lj_opt_mem.o: lj_opt_mem.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_tab.h lj_ir.h lj_jit.h lj_iropt.h lj_ircall.h lj_dispatch.h lj_bc.h
+lj_opt_narrow.o: lj_opt_narrow.c lj_obj.h lua.h luaconf.h lj_def.h \
+ lj_arch.h lj_bc.h lj_ir.h lj_jit.h lj_iropt.h lj_trace.h lj_dispatch.h \
+ lj_traceerr.h lj_vm.h lj_strscan.h
+lj_opt_sink.o: lj_opt_sink.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_ir.h lj_jit.h lj_iropt.h lj_target.h lj_target_*.h
+lj_opt_split.o: lj_opt_split.c lj_obj.h lua.h luaconf.h lj_def.h \
+ lj_arch.h lj_err.h lj_errmsg.h lj_buf.h lj_gc.h lj_str.h lj_ir.h \
+ lj_jit.h lj_ircall.h lj_iropt.h lj_dispatch.h lj_bc.h lj_vm.h
+lj_parse.o: lj_parse.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_debug.h lj_buf.h lj_str.h lj_tab.h \
+ lj_func.h lj_state.h lj_bc.h lj_ctype.h lj_strfmt.h lj_lex.h lj_parse.h \
+ lj_vm.h lj_vmevent.h
+lj_prng.o: lj_prng.c lj_def.h lua.h luaconf.h lj_arch.h lj_prng.h
+lj_profile.o: lj_profile.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_buf.h lj_gc.h lj_str.h lj_frame.h lj_bc.h lj_debug.h lj_dispatch.h \
+ lj_jit.h lj_ir.h lj_trace.h lj_traceerr.h lj_profile.h luajit.h
+lj_record.o: lj_record.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_err.h lj_errmsg.h lj_str.h lj_tab.h lj_meta.h lj_frame.h lj_bc.h \
+ lj_ctype.h lj_gc.h lj_ff.h lj_ffdef.h lj_debug.h lj_ir.h lj_jit.h \
+ lj_ircall.h lj_iropt.h lj_trace.h lj_dispatch.h lj_traceerr.h \
+ lj_record.h lj_ffrecord.h lj_snap.h lj_vm.h lj_prng.h
+lj_serialize.o: lj_serialize.c lj_obj.h lua.h luaconf.h lj_def.h \
+ lj_arch.h lj_err.h lj_errmsg.h lj_buf.h lj_gc.h lj_str.h lj_tab.h \
+ lj_udata.h lj_ctype.h lj_cdata.h lj_ir.h lj_serialize.h
+lj_snap.o: lj_snap.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_tab.h lj_state.h lj_frame.h lj_bc.h lj_ir.h lj_jit.h lj_iropt.h \
+ lj_trace.h lj_dispatch.h lj_traceerr.h lj_snap.h lj_target.h \
+ lj_target_*.h lj_ctype.h lj_cdata.h
+lj_state.o: lj_state.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_buf.h lj_str.h lj_tab.h lj_func.h \
+ lj_meta.h lj_state.h lj_frame.h lj_bc.h lj_ctype.h lj_trace.h lj_jit.h \
+ lj_ir.h lj_dispatch.h lj_traceerr.h lj_vm.h lj_prng.h lj_lex.h \
+ lj_alloc.h luajit.h
+lj_str.o: lj_str.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_err.h lj_errmsg.h lj_str.h lj_char.h lj_prng.h
+lj_strfmt.o: lj_strfmt.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_err.h lj_errmsg.h lj_buf.h lj_gc.h lj_str.h lj_meta.h lj_state.h \
+ lj_char.h lj_strfmt.h lj_ctype.h lj_lib.h
+lj_strfmt_num.o: lj_strfmt_num.c lj_obj.h lua.h luaconf.h lj_def.h \
+ lj_arch.h lj_buf.h lj_gc.h lj_str.h lj_strfmt.h
+lj_strscan.o: lj_strscan.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_char.h lj_strscan.h
+lj_tab.o: lj_tab.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h lj_gc.h \
+ lj_err.h lj_errmsg.h lj_tab.h
+lj_trace.o: lj_trace.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_debug.h lj_str.h lj_frame.h lj_bc.h \
+ lj_state.h lj_ir.h lj_jit.h lj_iropt.h lj_mcode.h lj_trace.h \
+ lj_dispatch.h lj_traceerr.h lj_snap.h lj_gdbjit.h lj_record.h lj_asm.h \
+ lj_vm.h lj_vmevent.h lj_target.h lj_target_*.h lj_prng.h
+lj_udata.o: lj_udata.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_gc.h lj_err.h lj_errmsg.h lj_udata.h
+lj_vmevent.o: lj_vmevent.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_str.h lj_tab.h lj_state.h lj_dispatch.h lj_bc.h lj_jit.h lj_ir.h \
+ lj_vm.h lj_vmevent.h
+lj_vmmath.o: lj_vmmath.c lj_obj.h lua.h luaconf.h lj_def.h lj_arch.h \
+ lj_ir.h lj_vm.h
+ljamalg.o: ljamalg.c lua.h luaconf.h lauxlib.h lj_assert.c lj_obj.h \
+ lj_def.h lj_arch.h lj_gc.c lj_gc.h lj_err.h lj_errmsg.h lj_buf.h \
+ lj_str.h lj_tab.h lj_func.h lj_udata.h lj_meta.h lj_state.h lj_frame.h \
+ lj_bc.h lj_ctype.h lj_cdata.h lj_trace.h lj_jit.h lj_ir.h lj_dispatch.h \
+ lj_traceerr.h lj_vm.h lj_err.c lj_debug.h lj_ff.h lj_ffdef.h lj_strfmt.h \
+ lj_char.c lj_char.h lj_bc.c lj_bcdef.h lj_obj.c lj_buf.c lj_str.c \
+ lj_prng.h lj_tab.c lj_func.c lj_udata.c lj_meta.c lj_strscan.h lj_lib.h \
+ lj_debug.c lj_prng.c lj_state.c lj_lex.h lj_alloc.h luajit.h \
+ lj_dispatch.c lj_ccallback.h lj_profile.h lj_vmevent.c lj_vmevent.h \
+ lj_vmmath.c lj_strscan.c lj_strfmt.c lj_strfmt_num.c lj_serialize.c \
+ lj_serialize.h lj_api.c lj_profile.c lj_lex.c lualib.h lj_parse.h \
+ lj_parse.c lj_bcread.c lj_bcdump.h lj_bcwrite.c lj_load.c lj_ctype.c \
+ lj_cdata.c lj_cconv.h lj_cconv.c lj_ccall.c lj_ccall.h lj_ccallback.c \
+ lj_target.h lj_target_*.h lj_mcode.h lj_carith.c lj_carith.h lj_clib.c \
+ lj_clib.h lj_cparse.c lj_cparse.h lj_lib.c lj_ir.c lj_ircall.h \
+ lj_iropt.h lj_opt_mem.c lj_opt_fold.c lj_folddef.h lj_opt_narrow.c \
+ lj_opt_dce.c lj_opt_loop.c lj_snap.h lj_opt_split.c lj_opt_sink.c \
+ lj_mcode.c lj_snap.c lj_record.c lj_record.h lj_ffrecord.h lj_crecord.c \
+ lj_crecord.h lj_ffrecord.c lj_recdef.h lj_asm.c lj_asm.h lj_emit_*.h \
+ lj_asm_*.h lj_trace.c lj_gdbjit.h lj_gdbjit.c lj_alloc.c lib_aux.c \
+ lib_base.c lj_libdef.h lib_math.c lib_string.c lib_table.c lib_io.c \
+ lib_os.c lib_package.c lib_debug.c lib_bit.c lib_jit.c lib_ffi.c \
+ lib_buffer.c lib_init.c
+luajit.o: luajit.c lua.h luaconf.h lauxlib.h lualib.h luajit.h lj_arch.h
+host/buildvm.o: host/buildvm.c host/buildvm.h lj_def.h lua.h luaconf.h \
+ lj_arch.h lj_obj.h lj_def.h lj_arch.h lj_gc.h lj_obj.h lj_bc.h lj_ir.h \
+ lj_ircall.h lj_ir.h lj_jit.h lj_frame.h lj_bc.h lj_dispatch.h lj_ctype.h \
+ lj_gc.h lj_ccall.h lj_ctype.h luajit.h \
+ host/buildvm_arch.h lj_traceerr.h
+host/buildvm_asm.o: host/buildvm_asm.c host/buildvm.h lj_def.h lua.h luaconf.h \
+ lj_arch.h lj_bc.h lj_def.h lj_arch.h
+host/buildvm_fold.o: host/buildvm_fold.c host/buildvm.h lj_def.h lua.h \
+ luaconf.h lj_arch.h lj_obj.h lj_def.h lj_arch.h lj_ir.h lj_obj.h
+host/buildvm_lib.o: host/buildvm_lib.c host/buildvm.h lj_def.h lua.h luaconf.h \
+ lj_arch.h lj_obj.h lj_def.h lj_arch.h lj_bc.h lj_lib.h lj_obj.h \
+ host/buildvm_libbc.h
+host/buildvm_peobj.o: host/buildvm_peobj.c host/buildvm.h lj_def.h lua.h \
+ luaconf.h lj_arch.h lj_bc.h lj_def.h lj_arch.h
+host/minilua.o: host/minilua.c
diff --git a/libs/luajit-cmake/luajit/src/host/.gitignore b/libs/luajit-cmake/luajit/src/host/.gitignore
new file mode 100644
index 0000000..762ac2a
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/host/.gitignore
@@ -0,0 +1,3 @@
+minilua
+buildvm
+buildvm_arch.h
diff --git a/libs/luajit-cmake/luajit/src/host/README b/libs/luajit-cmake/luajit/src/host/README
new file mode 100644
index 0000000..abfcdaa
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/host/README
@@ -0,0 +1,4 @@
+The files in this directory are only used during the build process of LuaJIT.
+For cross-compilation, they must be executed on the host, not on the target.
+
+These files should NOT be installed!
diff --git a/libs/luajit-cmake/luajit/src/host/buildvm.c b/libs/luajit-cmake/luajit/src/host/buildvm.c
new file mode 100644
index 0000000..9ee47ad
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/host/buildvm.c
@@ -0,0 +1,528 @@
+/*
+** LuaJIT VM builder.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** This is a tool to build the hand-tuned assembler code required for
+** LuaJIT's bytecode interpreter. It supports a variety of output formats
+** to feed different toolchains (see usage() below).
+**
+** This tool is not particularly optimized because it's only used while
+** _building_ LuaJIT. There's no point in distributing or installing it.
+** Only the object code generated by this tool is linked into LuaJIT.
+**
+** Caveat: some memory is not free'd, error handling is lazy.
+** It's a one-shot tool -- any effort fixing this would be wasted.
+*/
+
+#include "buildvm.h"
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_bc.h"
+#if LJ_HASJIT
+#include "lj_ir.h"
+#include "lj_ircall.h"
+#endif
+#include "lj_frame.h"
+#include "lj_dispatch.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_ccall.h"
+#endif
+#include "luajit.h"
+
+#if defined(_WIN32)
+#include <fcntl.h>
+#include <io.h>
+#endif
+
+/* ------------------------------------------------------------------------ */
+
+/* DynASM glue definitions. */
+#define Dst		ctx
+#define Dst_DECL	BuildCtx *ctx
+#define Dst_REF		(ctx->D)
+#define DASM_CHECKS	1
+
+#include "../dynasm/dasm_proto.h"
+
+/* Glue macros for DynASM. */
+static int collect_reloc(BuildCtx *ctx, uint8_t *addr, int idx, int type);
+
+#define DASM_EXTERN(ctx, addr, idx, type) \
+  collect_reloc(ctx, addr, idx, type)
+
+/* ------------------------------------------------------------------------ */
+
+/* Avoid trouble if cross-compiling for an x86 target. Speed doesn't matter. */
+#define DASM_ALIGNED_WRITES	1
+
+/* Embed architecture-specific DynASM encoder. */
+#if LJ_TARGET_X86ORX64
+#include "../dynasm/dasm_x86.h"
+#elif LJ_TARGET_ARM
+#include "../dynasm/dasm_arm.h"
+#elif LJ_TARGET_ARM64
+#include "../dynasm/dasm_arm64.h"
+#elif LJ_TARGET_PPC
+#include "../dynasm/dasm_ppc.h"
+#elif LJ_TARGET_MIPS
+#include "../dynasm/dasm_mips.h"
+#else
+#error "No support for this architecture (yet)"
+#endif
+
+/* Embed generated architecture-specific backend. */
+#include "buildvm_arch.h"
+
+/* ------------------------------------------------------------------------ */
+
+void owrite(BuildCtx *ctx, const void *ptr, size_t sz)
+{
+  if (fwrite(ptr, 1, sz, ctx->fp) != sz) {
+    fprintf(stderr, "Error: cannot write to output file: %s\n",
+	    strerror(errno));
+    exit(1);
+  }
+}
+
+/* ------------------------------------------------------------------------ */
+
+/* Emit code as raw bytes. Only used for DynASM debugging. */
+static void emit_raw(BuildCtx *ctx)
+{
+  owrite(ctx, ctx->code, ctx->codesz);
+}
+
+/* -- Build machine code -------------------------------------------------- */
+
+static const char *sym_decorate(BuildCtx *ctx,
+				const char *prefix, const char *suffix)
+{
+  char name[256];
+  char *p;
+#if LJ_64
+  const char *symprefix = ctx->mode == BUILD_machasm ? "_" : "";
+#elif LJ_TARGET_XBOX360
+  const char *symprefix = "";
+#else
+  const char *symprefix = ctx->mode != BUILD_elfasm ? "_" : "";
+#endif
+  sprintf(name, "%s%s%s", symprefix, prefix, suffix);
+  p = strchr(name, '@');
+  if (p) {
+#if LJ_TARGET_X86ORX64
+    if (!LJ_64 && (ctx->mode == BUILD_coffasm || ctx->mode == BUILD_peobj))
+      name[0] = name[1] == 'R' ? '_' : '@';  /* Just for _RtlUnwind@16. */
+    else
+      *p = '\0';
+#elif LJ_TARGET_PPC && !LJ_TARGET_CONSOLE
+    /* Keep @plt etc. */
+#else
+    *p = '\0';
+#endif
+  }
+  p = (char *)malloc(strlen(name)+1);  /* MSVC doesn't like strdup. */
+  strcpy(p, name);
+  return p;
+}
+
+#define NRELOCSYM	(sizeof(extnames)/sizeof(extnames[0])-1)
+
+static int relocmap[NRELOCSYM];
+
+/* Collect external relocations. */
+static int collect_reloc(BuildCtx *ctx, uint8_t *addr, int idx, int type)
+{
+  if (ctx->nreloc >= BUILD_MAX_RELOC) {
+    fprintf(stderr, "Error: too many relocations, increase BUILD_MAX_RELOC.\n");
+    exit(1);
+  }
+  if (relocmap[idx] < 0) {
+    relocmap[idx] = ctx->nrelocsym;
+    ctx->relocsym[ctx->nrelocsym] = sym_decorate(ctx, "", extnames[idx]);
+    ctx->nrelocsym++;
+  }
+  ctx->reloc[ctx->nreloc].ofs = (int32_t)(addr - ctx->code);
+  ctx->reloc[ctx->nreloc].sym = relocmap[idx];
+  ctx->reloc[ctx->nreloc].type = type;
+  ctx->nreloc++;
+#if LJ_TARGET_XBOX360
+  return (int)(ctx->code - addr) + 4;  /* Encode symbol offset of .text. */
+#else
+  return 0;  /* Encode symbol offset of 0. */
+#endif
+}
+
+/* Naive insertion sort. Performance doesn't matter here. */
+static void sym_insert(BuildCtx *ctx, int32_t ofs,
+		       const char *prefix, const char *suffix)
+{
+  ptrdiff_t i = ctx->nsym++;
+  while (i > 0) {
+    if (ctx->sym[i-1].ofs <= ofs)
+      break;
+    ctx->sym[i] = ctx->sym[i-1];
+    i--;
+  }
+  ctx->sym[i].ofs = ofs;
+  ctx->sym[i].name = sym_decorate(ctx, prefix, suffix);
+}
+
+/* Build the machine code. */
+static int build_code(BuildCtx *ctx)
+{
+  int status;
+  int i;
+
+  /* Initialize DynASM structures. */
+  ctx->nglob = GLOB__MAX;
+  ctx->glob = (void **)malloc(ctx->nglob*sizeof(void *));
+  memset(ctx->glob, 0, ctx->nglob*sizeof(void *));
+  ctx->nreloc = 0;
+
+  ctx->globnames = globnames;
+  ctx->extnames = extnames;
+  ctx->relocsym = (const char **)malloc(NRELOCSYM*sizeof(const char *));
+  ctx->nrelocsym = 0;
+  for (i = 0; i < (int)NRELOCSYM; i++) relocmap[i] = -1;
+
+  ctx->dasm_ident = DASM_IDENT;
+  ctx->dasm_arch = DASM_ARCH;
+
+  dasm_init(Dst, DASM_MAXSECTION);
+  dasm_setupglobal(Dst, ctx->glob, ctx->nglob);
+  dasm_setup(Dst, build_actionlist);
+
+  /* Call arch-specific backend to emit the code. */
+  ctx->npc = build_backend(ctx);
+
+  /* Finalize the code. */
+  (void)dasm_checkstep(Dst, -1);
+  if ((status = dasm_link(Dst, &ctx->codesz))) return status;
+  ctx->code = (uint8_t *)malloc(ctx->codesz);
+  if ((status = dasm_encode(Dst, (void *)ctx->code))) return status;
+
+  /* Allocate symbol table and bytecode offsets. */
+  ctx->beginsym = sym_decorate(ctx, "", LABEL_PREFIX "vm_asm_begin");
+  ctx->sym = (BuildSym *)malloc((ctx->npc+ctx->nglob+1)*sizeof(BuildSym));
+  ctx->nsym = 0;
+  ctx->bc_ofs = (int32_t *)malloc(ctx->npc*sizeof(int32_t));
+
+  /* Collect the opcodes (PC labels). */
+  for (i = 0; i < ctx->npc; i++) {
+    int32_t ofs = dasm_getpclabel(Dst, i);
+    if (ofs < 0) return 0x22000000|i;
+    ctx->bc_ofs[i] = ofs;
+    if ((LJ_HASJIT ||
+	 !(i == BC_JFORI || i == BC_JFORL || i == BC_JITERL || i == BC_JLOOP ||
+	   i == BC_IFORL || i == BC_IITERL || i == BC_ILOOP)) &&
+	(LJ_HASFFI || i != BC_KCDATA))
+      sym_insert(ctx, ofs, LABEL_PREFIX_BC, bc_names[i]);
+  }
+
+  /* Collect the globals (named labels). */
+  for (i = 0; i < ctx->nglob; i++) {
+    const char *gl = globnames[i];
+    int len = (int)strlen(gl);
+    if (!ctx->glob[i]) {
+      fprintf(stderr, "Error: undefined global %s\n", gl);
+      exit(2);
+    }
+    /* Skip the _Z symbols. */
+    if (!(len >= 2 && gl[len-2] == '_' && gl[len-1] == 'Z'))
+      sym_insert(ctx, (int32_t)((uint8_t *)(ctx->glob[i]) - ctx->code),
+		 LABEL_PREFIX, globnames[i]);
+  }
+
+  /* Close the address range. */
+  sym_insert(ctx, (int32_t)ctx->codesz, "", "");
+  ctx->nsym--;
+
+  dasm_free(Dst);
+
+  return 0;
+}
+
+/* -- Generate VM enums --------------------------------------------------- */
+
+const char *const bc_names[] = {
+#define BCNAME(name, ma, mb, mc, mt)       #name,
+BCDEF(BCNAME)
+#undef BCNAME
+  NULL
+};
+
+#if LJ_HASJIT
+const char *const ir_names[] = {
+#define IRNAME(name, m, m1, m2)	#name,
+IRDEF(IRNAME)
+#undef IRNAME
+  NULL
+};
+
+const char *const irt_names[] = {
+#define IRTNAME(name, size)	#name,
+IRTDEF(IRTNAME)
+#undef IRTNAME
+  NULL
+};
+
+const char *const irfpm_names[] = {
+#define FPMNAME(name)		#name,
+IRFPMDEF(FPMNAME)
+#undef FPMNAME
+  NULL
+};
+
+const char *const irfield_names[] = {
+#define FLNAME(name, ofs)	#name,
+IRFLDEF(FLNAME)
+#undef FLNAME
+  NULL
+};
+
+const char *const ircall_names[] = {
+#define IRCALLNAME(cond, name, nargs, kind, type, flags)	#name,
+IRCALLDEF(IRCALLNAME)
+#undef IRCALLNAME
+  NULL
+};
+
+static const char *const trace_errors[] = {
+#define TREDEF(name, msg)	msg,
+#include "lj_traceerr.h"
+  NULL
+};
+#endif
+
+#if LJ_HASJIT
+static const char *lower(char *buf, const char *s)
+{
+  char *p = buf;
+  while (*s) {
+    *p++ = (*s >= 'A' && *s <= 'Z') ? *s+0x20 : *s;
+    s++;
+  }
+  *p = '\0';
+  return buf;
+}
+#endif
+
+/* Emit C source code for bytecode-related definitions. */
+static void emit_bcdef(BuildCtx *ctx)
+{
+  int i;
+  fprintf(ctx->fp, "/* This is a generated file. DO NOT EDIT! */\n\n");
+  fprintf(ctx->fp, "LJ_DATADEF const uint16_t lj_bc_ofs[] = {\n");
+  for (i = 0; i < ctx->npc; i++) {
+    if (i != 0)
+      fprintf(ctx->fp, ",\n");
+    fprintf(ctx->fp, "%d", ctx->bc_ofs[i]);
+  }
+}
+
+/* Emit VM definitions as Lua code for debug modules. */
+static void emit_vmdef(BuildCtx *ctx)
+{
+#if LJ_HASJIT
+  char buf[80];
+#endif
+  int i;
+  fprintf(ctx->fp, "-- This is a generated file. DO NOT EDIT!\n\n");
+  fprintf(ctx->fp, "return {\n\n");
+
+  fprintf(ctx->fp, "bcnames = \"");
+  for (i = 0; bc_names[i]; i++) fprintf(ctx->fp, "%-6s", bc_names[i]);
+  fprintf(ctx->fp, "\",\n\n");
+
+#if LJ_HASJIT
+  fprintf(ctx->fp, "irnames = \"");
+  for (i = 0; ir_names[i]; i++) fprintf(ctx->fp, "%-6s", ir_names[i]);
+  fprintf(ctx->fp, "\",\n\n");
+
+  fprintf(ctx->fp, "irfpm = { [0]=");
+  for (i = 0; irfpm_names[i]; i++)
+    fprintf(ctx->fp, "\"%s\", ", lower(buf, irfpm_names[i]));
+  fprintf(ctx->fp, "},\n\n");
+
+  fprintf(ctx->fp, "irfield = { [0]=");
+  for (i = 0; irfield_names[i]; i++) {
+    char *p;
+    lower(buf, irfield_names[i]);
+    p = strchr(buf, '_');
+    if (p) *p = '.';
+    fprintf(ctx->fp, "\"%s\", ", buf);
+  }
+  fprintf(ctx->fp, "},\n\n");
+
+  fprintf(ctx->fp, "ircall = {\n[0]=");
+  for (i = 0; ircall_names[i]; i++)
+    fprintf(ctx->fp, "\"%s\",\n", ircall_names[i]);
+  fprintf(ctx->fp, "},\n\n");
+
+  fprintf(ctx->fp, "traceerr = {\n[0]=");
+  for (i = 0; trace_errors[i]; i++)
+    fprintf(ctx->fp, "\"%s\",\n", trace_errors[i]);
+  fprintf(ctx->fp, "},\n\n");
+#endif
+}
+
+/* -- Argument parsing ---------------------------------------------------- */
+
+/* Build mode names. */
+static const char *const modenames[] = {
+#define BUILDNAME(name)		#name,
+BUILDDEF(BUILDNAME)
+#undef BUILDNAME
+  NULL
+};
+
+/* Print usage information and exit. */
+static void usage(void)
+{
+  int i;
+  fprintf(stderr, LUAJIT_VERSION " VM builder.\n");
+  fprintf(stderr, LUAJIT_COPYRIGHT ", " LUAJIT_URL "\n");
+  fprintf(stderr, "Target architecture: " LJ_ARCH_NAME "\n\n");
+  fprintf(stderr, "Usage: buildvm -m mode [-o outfile] [infiles...]\n\n");
+  fprintf(stderr, "Available modes:\n");
+  for (i = 0; i < BUILD__MAX; i++)
+    fprintf(stderr, "  %s\n", modenames[i]);
+  exit(1);
+}
+
+/* Parse the output mode name. */
+static BuildMode parsemode(const char *mode)
+{
+  int i;
+  for (i = 0; modenames[i]; i++)
+    if (!strcmp(mode, modenames[i]))
+      return (BuildMode)i;
+  usage();
+  return (BuildMode)-1;
+}
+
+/* Parse arguments. */
+static void parseargs(BuildCtx *ctx, char **argv)
+{
+  const char *a;
+  int i;
+  ctx->mode = (BuildMode)-1;
+  ctx->outname = "-";
+  for (i = 1; (a = argv[i]) != NULL; i++) {
+    if (a[0] != '-')
+      break;
+    switch (a[1]) {
+    case '-':
+      if (a[2]) goto err;
+      i++;
+      goto ok;
+    case '\0':
+      goto ok;
+    case 'm':
+      i++;
+      if (a[2] || argv[i] == NULL) goto err;
+      ctx->mode = parsemode(argv[i]);
+      break;
+    case 'o':
+      i++;
+      if (a[2] || argv[i] == NULL) goto err;
+      ctx->outname = argv[i];
+      break;
+    default: err:
+      usage();
+      break;
+    }
+  }
+ok:
+  ctx->args = argv+i;
+  if (ctx->mode == (BuildMode)-1) goto err;
+}
+
+int main(int argc, char **argv)
+{
+  BuildCtx ctx_;
+  BuildCtx *ctx = &ctx_;
+  int status, binmode;
+
+  if (sizeof(void *) != 4*LJ_32+8*LJ_64) {
+    fprintf(stderr,"Error: pointer size mismatch in cross-build.\n");
+    fprintf(stderr,"Try: make HOST_CC=\"gcc -m32\" CROSS=...\n\n");
+    return 1;
+  }
+
+  UNUSED(argc);
+  parseargs(ctx, argv);
+
+  if ((status = build_code(ctx))) {
+    fprintf(stderr,"Error: DASM error %08x\n", status);
+    return 1;
+  }
+
+  switch (ctx->mode) {
+  case BUILD_peobj:
+  case BUILD_raw:
+    binmode = 1;
+    break;
+  default:
+    binmode = 0;
+    break;
+  }
+
+  if (ctx->outname[0] == '-' && ctx->outname[1] == '\0') {
+    ctx->fp = stdout;
+#if defined(_WIN32)
+    if (binmode)
+      _setmode(_fileno(stdout), _O_BINARY);  /* Yuck. */
+#endif
+  } else if (!(ctx->fp = fopen(ctx->outname, binmode ? "wb" : "w"))) {
+    fprintf(stderr, "Error: cannot open output file '%s': %s\n",
+	    ctx->outname, strerror(errno));
+    exit(1);
+  }
+
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+  case BUILD_coffasm:
+  case BUILD_machasm:
+    emit_asm(ctx);
+    emit_asm_debug(ctx);
+    break;
+  case BUILD_peobj:
+    emit_peobj(ctx);
+    break;
+  case BUILD_raw:
+    emit_raw(ctx);
+    break;
+  case BUILD_bcdef:
+    emit_bcdef(ctx);
+    emit_lib(ctx);
+    break;
+  case BUILD_vmdef:
+    emit_vmdef(ctx);
+    emit_lib(ctx);
+    fprintf(ctx->fp, "}\n\n");
+    break;
+  case BUILD_ffdef:
+  case BUILD_libdef:
+  case BUILD_recdef:
+    emit_lib(ctx);
+    break;
+  case BUILD_folddef:
+    emit_fold(ctx);
+    break;
+  default:
+    break;
+  }
+
+  fflush(ctx->fp);
+  if (ferror(ctx->fp)) {
+    fprintf(stderr, "Error: cannot write to output file: %s\n",
+	    strerror(errno));
+    exit(1);
+  }
+  fclose(ctx->fp);
+
+  return 0;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/host/buildvm.h b/libs/luajit-cmake/luajit/src/host/buildvm.h
new file mode 100644
index 0000000..18cd884
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/host/buildvm.h
@@ -0,0 +1,105 @@
+/*
+** LuaJIT VM builder.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _BUILDVM_H
+#define _BUILDVM_H
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include "lj_def.h"
+#include "lj_arch.h"
+
+/* Hardcoded limits. Increase as needed. */
+#define BUILD_MAX_RELOC		200	/* Max. number of relocations. */
+#define BUILD_MAX_FOLD		4096	/* Max. number of fold rules. */
+
+/* Prefix for scanned library definitions. */
+#define LIBDEF_PREFIX		"LJLIB_"
+
+/* Prefix for scanned fold definitions. */
+#define FOLDDEF_PREFIX		"LJFOLD"
+
+/* Prefixes for generated labels. */
+#define LABEL_PREFIX		"lj_"
+#define LABEL_PREFIX_BC		LABEL_PREFIX "BC_"
+#define LABEL_PREFIX_FF		LABEL_PREFIX "ff_"
+#define LABEL_PREFIX_CF		LABEL_PREFIX "cf_"
+#define LABEL_PREFIX_FFH	LABEL_PREFIX "ffh_"
+#define LABEL_PREFIX_LIBCF	LABEL_PREFIX "lib_cf_"
+#define LABEL_PREFIX_LIBINIT	LABEL_PREFIX "lib_init_"
+
+/* Forward declaration. */
+struct dasm_State;
+
+/* Build modes. */
+#define BUILDDEF(_) \
+  _(elfasm) _(coffasm) _(machasm) _(peobj) _(raw) \
+  _(bcdef) _(ffdef) _(libdef) _(recdef) _(vmdef) \
+  _(folddef)
+
+typedef enum {
+#define BUILDENUM(name)		BUILD_##name,
+BUILDDEF(BUILDENUM)
+#undef BUILDENUM
+  BUILD__MAX
+} BuildMode;
+
+/* Code relocation. */
+typedef struct BuildReloc {
+  int32_t ofs;
+  int sym;
+  int type;
+} BuildReloc;
+
+typedef struct BuildSym {
+  const char *name;
+  int32_t ofs;
+} BuildSym;
+
+/* Build context structure. */
+typedef struct BuildCtx {
+  /* DynASM state pointer. Should be first member. */
+  struct dasm_State *D;
+  /* Parsed command line. */
+  BuildMode mode;
+  FILE *fp;
+  const char *outname;
+  char **args;
+  /* Code and symbols generated by DynASM. */
+  uint8_t *code;
+  size_t codesz;
+  int npc, nglob, nsym, nreloc, nrelocsym;
+  void **glob;
+  BuildSym *sym;
+  const char **relocsym;
+  int32_t *bc_ofs;
+  const char *beginsym;
+  /* Strings generated by DynASM. */
+  const char *const *globnames;
+  const char *const *extnames;
+  const char *dasm_ident;
+  const char *dasm_arch;
+  /* Relocations. */
+  BuildReloc reloc[BUILD_MAX_RELOC];
+} BuildCtx;
+
+extern void owrite(BuildCtx *ctx, const void *ptr, size_t sz);
+extern void emit_asm(BuildCtx *ctx);
+extern void emit_peobj(BuildCtx *ctx);
+extern void emit_lib(BuildCtx *ctx);
+extern void emit_fold(BuildCtx *ctx);
+
+extern const char *const bc_names[];
+extern const char *const ir_names[];
+extern const char *const irt_names[];
+extern const char *const irfpm_names[];
+extern const char *const irfield_names[];
+extern const char *const ircall_names[];
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/host/buildvm_asm.c b/libs/luajit-cmake/luajit/src/host/buildvm_asm.c
new file mode 100644
index 0000000..7baa011
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/host/buildvm_asm.c
@@ -0,0 +1,348 @@
+/*
+** LuaJIT VM builder: Assembler source code emitter.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "buildvm.h"
+#include "lj_bc.h"
+
+/* ------------------------------------------------------------------------ */
+
+#if LJ_TARGET_X86ORX64
+/* Emit bytes piecewise as assembler text. */
+static void emit_asm_bytes(BuildCtx *ctx, uint8_t *p, int n)
+{
+  int i;
+  for (i = 0; i < n; i++) {
+    if ((i & 15) == 0)
+      fprintf(ctx->fp, "\t.byte %d", p[i]);
+    else
+      fprintf(ctx->fp, ",%d", p[i]);
+    if ((i & 15) == 15) putc('\n', ctx->fp);
+  }
+  if ((n & 15) != 0) putc('\n', ctx->fp);
+}
+
+/* Emit relocation */
+static void emit_asm_reloc(BuildCtx *ctx, int type, const char *sym)
+{
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+    if (type)
+      fprintf(ctx->fp, "\t.long %s-.-4\n", sym);
+    else
+      fprintf(ctx->fp, "\t.long %s\n", sym);
+    break;
+  case BUILD_coffasm:
+    fprintf(ctx->fp, "\t.def %s; .scl 3; .type 32; .endef\n", sym);
+    if (type)
+      fprintf(ctx->fp, "\t.long %s-.-4\n", sym);
+    else
+      fprintf(ctx->fp, "\t.long %s\n", sym);
+    break;
+  default:  /* BUILD_machasm for relative relocations handled below. */
+    fprintf(ctx->fp, "\t.long %s\n", sym);
+    break;
+  }
+}
+
+static const char *const jccnames[] = {
+  "jo", "jno", "jb", "jnb", "jz", "jnz", "jbe", "ja",
+  "js", "jns", "jpe", "jpo", "jl", "jge", "jle", "jg"
+};
+
+/* Emit x86/x64 text relocations. */
+static void emit_asm_reloc_text(BuildCtx *ctx, uint8_t *cp, int n,
+				const char *sym)
+{
+  const char *opname = NULL;
+  if (--n < 0) goto err;
+  if (cp[n] == 0xe8) {
+    opname = "call";
+  } else if (cp[n] == 0xe9) {
+    opname = "jmp";
+  } else if (cp[n] >= 0x80 && cp[n] <= 0x8f && n > 0 && cp[n-1] == 0x0f) {
+    opname = jccnames[cp[n]-0x80];
+    n--;
+  } else {
+err:
+    fprintf(stderr, "Error: unsupported opcode for %s symbol relocation.\n",
+	    sym);
+    exit(1);
+  }
+  emit_asm_bytes(ctx, cp, n);
+  if (strncmp(sym+(*sym == '_'), LABEL_PREFIX, sizeof(LABEL_PREFIX)-1)) {
+    /* Various fixups for external symbols outside of our binary. */
+    if (ctx->mode == BUILD_elfasm) {
+      if (LJ_32)
+	fprintf(ctx->fp, "#if __PIC__\n\t%s lj_wrap_%s\n#else\n", opname, sym);
+      fprintf(ctx->fp, "\t%s %s@PLT\n", opname, sym);
+      if (LJ_32)
+	fprintf(ctx->fp, "#endif\n");
+      return;
+    } else if (LJ_32 && ctx->mode == BUILD_machasm) {
+      fprintf(ctx->fp, "\t%s L%s$stub\n", opname, sym);
+      return;
+    }
+  }
+  fprintf(ctx->fp, "\t%s %s\n", opname, sym);
+}
+#else
+/* Emit words piecewise as assembler text. */
+static void emit_asm_words(BuildCtx *ctx, uint8_t *p, int n)
+{
+  int i;
+  for (i = 0; i < n; i += 4) {
+    uint32_t ins = *(uint32_t *)(p+i);
+#if LJ_TARGET_ARM64 && LJ_BE
+    ins = lj_bswap(ins);  /* ARM64 instructions are always little-endian. */
+#endif
+    if ((i & 15) == 0)
+      fprintf(ctx->fp, "\t.long 0x%08x", ins);
+    else
+      fprintf(ctx->fp, ",0x%08x", ins);
+    if ((i & 15) == 12) putc('\n', ctx->fp);
+  }
+  if ((n & 15) != 0) putc('\n', ctx->fp);
+}
+
+/* Emit relocation as part of an instruction. */
+static void emit_asm_wordreloc(BuildCtx *ctx, uint8_t *p, int n,
+			       const char *sym)
+{
+  uint32_t ins;
+  emit_asm_words(ctx, p, n-4);
+  ins = *(uint32_t *)(p+n-4);
+#if LJ_TARGET_ARM
+  if ((ins & 0xff000000u) == 0xfa000000u) {
+    fprintf(ctx->fp, "\tblx %s\n", sym);
+  } else if ((ins & 0x0e000000u) == 0x0a000000u) {
+    fprintf(ctx->fp, "\t%s%.2s %s\n", (ins & 0x01000000u) ? "bl" : "b",
+	    &"eqnecsccmiplvsvchilsgeltgtle"[2*(ins >> 28)], sym);
+  } else {
+    fprintf(stderr,
+	    "Error: unsupported opcode %08x for %s symbol relocation.\n",
+	    ins, sym);
+    exit(1);
+  }
+#elif LJ_TARGET_ARM64
+  if ((ins >> 26) == 0x25u) {
+    fprintf(ctx->fp, "\tbl %s\n", sym);
+  } else {
+    fprintf(stderr,
+	    "Error: unsupported opcode %08x for %s symbol relocation.\n",
+	    ins, sym);
+    exit(1);
+  }
+#elif LJ_TARGET_PPC
+#if LJ_TARGET_PS3
+#define TOCPREFIX "."
+#else
+#define TOCPREFIX ""
+#endif
+  if ((ins >> 26) == 16) {
+    fprintf(ctx->fp, "\t%s %d, %d, " TOCPREFIX "%s\n",
+	    (ins & 1) ? "bcl" : "bc", (ins >> 21) & 31, (ins >> 16) & 31, sym);
+  } else if ((ins >> 26) == 18) {
+    fprintf(ctx->fp, "\t%s " TOCPREFIX "%s\n", (ins & 1) ? "bl" : "b", sym);
+  } else {
+    fprintf(stderr,
+	    "Error: unsupported opcode %08x for %s symbol relocation.\n",
+	    ins, sym);
+    exit(1);
+  }
+#elif LJ_TARGET_MIPS
+  fprintf(stderr,
+	  "Error: unsupported opcode %08x for %s symbol relocation.\n",
+	  ins, sym);
+  exit(1);
+#else
+#error "missing relocation support for this architecture"
+#endif
+}
+#endif
+
+#if LJ_TARGET_ARM
+#define ELFASM_PX	"%%"
+#else
+#define ELFASM_PX	"@"
+#endif
+
+/* Emit an assembler label. */
+static void emit_asm_label(BuildCtx *ctx, const char *name, int size, int isfunc)
+{
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+#if LJ_TARGET_PS3
+    if (!strncmp(name, "lj_vm_", 6) &&
+	strcmp(name, ctx->beginsym) &&
+	!strstr(name, "hook")) {
+      fprintf(ctx->fp,
+	"\n\t.globl %s\n"
+	"\t.section \".opd\",\"aw\"\n"
+	"%s:\n"
+	"\t.long .%s,.TOC.@tocbase32\n"
+	"\t.size %s,8\n"
+	"\t.previous\n"
+	"\t.globl .%s\n"
+	"\t.hidden .%s\n"
+	"\t.type .%s, " ELFASM_PX "function\n"
+	"\t.size .%s, %d\n"
+	".%s:\n",
+	name, name, name, name, name, name, name, name, size, name);
+      break;
+    }
+#endif
+    fprintf(ctx->fp,
+      "\n\t.globl %s\n"
+      "\t.hidden %s\n"
+      "\t.type %s, " ELFASM_PX "%s\n"
+      "\t.size %s, %d\n"
+      "%s:\n",
+      name, name, name, isfunc ? "function" : "object", name, size, name);
+    break;
+  case BUILD_coffasm:
+    fprintf(ctx->fp, "\n\t.globl %s\n", name);
+    if (isfunc)
+      fprintf(ctx->fp, "\t.def %s; .scl 3; .type 32; .endef\n", name);
+    fprintf(ctx->fp, "%s:\n", name);
+    break;
+  case BUILD_machasm:
+    fprintf(ctx->fp,
+      "\n\t.private_extern %s\n"
+      "\t.no_dead_strip %s\n"
+      "%s:\n", name, name, name);
+    break;
+  default:
+    break;
+  }
+}
+
+/* Emit alignment. */
+static void emit_asm_align(BuildCtx *ctx, int bits)
+{
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+  case BUILD_coffasm:
+    fprintf(ctx->fp, "\t.p2align %d\n", bits);
+    break;
+  case BUILD_machasm:
+    fprintf(ctx->fp, "\t.align %d\n", bits);
+    break;
+  default:
+    break;
+  }
+}
+
+/* ------------------------------------------------------------------------ */
+
+/* Emit assembler source code. */
+void emit_asm(BuildCtx *ctx)
+{
+  int i, rel;
+
+  fprintf(ctx->fp, "\t.file \"buildvm_%s.dasc\"\n", ctx->dasm_arch);
+  fprintf(ctx->fp, "\t.text\n");
+  emit_asm_align(ctx, 4);
+
+#if LJ_TARGET_PS3
+  emit_asm_label(ctx, ctx->beginsym, ctx->codesz, 0);
+#else
+  emit_asm_label(ctx, ctx->beginsym, 0, 0);
+#endif
+  if (ctx->mode != BUILD_machasm)
+    fprintf(ctx->fp, ".Lbegin:\n");
+
+#if LJ_TARGET_ARM && defined(__GNUC__) && !LJ_NO_UNWIND
+  /* This should really be moved into buildvm_arm.dasc. */
+#if LJ_ARCH_HASFPU
+  fprintf(ctx->fp,
+	  ".fnstart\n"
+	  ".save {r5, r6, r7, r8, r9, r10, r11, lr}\n"
+	  ".vsave {d8-d15}\n"
+	  ".save {r4}\n"
+	  ".pad #28\n");
+#else
+  fprintf(ctx->fp,
+	  ".fnstart\n"
+	  ".save {r4, r5, r6, r7, r8, r9, r10, r11, lr}\n"
+	  ".pad #28\n");
+#endif
+#endif
+#if LJ_TARGET_MIPS
+  fprintf(ctx->fp, ".set nomips16\n.abicalls\n.set noreorder\n.set nomacro\n");
+#endif
+
+  for (i = rel = 0; i < ctx->nsym; i++) {
+    int32_t ofs = ctx->sym[i].ofs;
+    int32_t next = ctx->sym[i+1].ofs;
+#if LJ_TARGET_ARM && defined(__GNUC__) && !LJ_NO_UNWIND && LJ_HASFFI
+    if (!strcmp(ctx->sym[i].name, "lj_vm_ffi_call"))
+      fprintf(ctx->fp,
+	      ".globl lj_err_unwind_arm\n"
+	      ".personality lj_err_unwind_arm\n"
+	      ".fnend\n"
+	      ".fnstart\n"
+	      ".save {r4, r5, r11, lr}\n"
+	      ".setfp r11, sp\n");
+#endif
+    emit_asm_label(ctx, ctx->sym[i].name, next - ofs, 1);
+    while (rel < ctx->nreloc && ctx->reloc[rel].ofs <= next) {
+      BuildReloc *r = &ctx->reloc[rel];
+      int n = r->ofs - ofs;
+#if LJ_TARGET_X86ORX64
+      if (r->type != 0 &&
+	  (ctx->mode == BUILD_elfasm || ctx->mode == BUILD_machasm)) {
+	emit_asm_reloc_text(ctx, ctx->code+ofs, n, ctx->relocsym[r->sym]);
+      } else {
+	emit_asm_bytes(ctx, ctx->code+ofs, n);
+	emit_asm_reloc(ctx, r->type, ctx->relocsym[r->sym]);
+      }
+      ofs += n+4;
+#else
+      emit_asm_wordreloc(ctx, ctx->code+ofs, n, ctx->relocsym[r->sym]);
+      ofs += n;
+#endif
+      rel++;
+    }
+#if LJ_TARGET_X86ORX64
+    emit_asm_bytes(ctx, ctx->code+ofs, next-ofs);
+#else
+    emit_asm_words(ctx, ctx->code+ofs, next-ofs);
+#endif
+  }
+
+#if LJ_TARGET_ARM && defined(__GNUC__) && !LJ_NO_UNWIND
+  fprintf(ctx->fp,
+#if !LJ_HASFFI
+	  ".globl lj_err_unwind_arm\n"
+	  ".personality lj_err_unwind_arm\n"
+#endif
+	  ".fnend\n");
+#endif
+
+  fprintf(ctx->fp, "\n");
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+#if !(LJ_TARGET_PS3 || LJ_TARGET_PSVITA)
+    fprintf(ctx->fp, "\t.section .note.GNU-stack,\"\"," ELFASM_PX "progbits\n");
+#endif
+#if LJ_TARGET_PPC && !LJ_TARGET_PS3 && !LJ_ABI_SOFTFP
+    /* Hard-float ABI. */
+    fprintf(ctx->fp, "\t.gnu_attribute 4, 1\n");
+#endif
+    /* fallthrough */
+  case BUILD_coffasm:
+    fprintf(ctx->fp, "\t.ident \"%s\"\n", ctx->dasm_ident);
+    break;
+  case BUILD_machasm:
+    fprintf(ctx->fp,
+      "\t.cstring\n"
+      "\t.ascii \"%s\\0\"\n", ctx->dasm_ident);
+    break;
+  default:
+    break;
+  }
+  fprintf(ctx->fp, "\n");
+}
+
diff --git a/libs/luajit-cmake/luajit/src/host/buildvm_fold.c b/libs/luajit-cmake/luajit/src/host/buildvm_fold.c
new file mode 100644
index 0000000..edb5576
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/host/buildvm_fold.c
@@ -0,0 +1,236 @@
+/*
+** LuaJIT VM builder: IR folding hash table generator.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "buildvm.h"
+#include "lj_obj.h"
+#if LJ_HASJIT
+#include "lj_ir.h"
+
+/* Context for the folding hash table generator. */
+static int lineno;
+static uint32_t funcidx;
+static uint32_t foldkeys[BUILD_MAX_FOLD];
+static uint32_t nkeys;
+
+/* Try to fill the hash table with keys using the hash parameters. */
+static int tryhash(uint32_t *htab, uint32_t sz, uint32_t r, int dorol)
+{
+  uint32_t i;
+  if (dorol && ((r & 31) == 0 || (r>>5) == 0))
+    return 0;  /* Avoid zero rotates. */
+  memset(htab, 0xff, (sz+1)*sizeof(uint32_t));
+  for (i = 0; i < nkeys; i++) {
+    uint32_t key = foldkeys[i];
+    uint32_t k = key & 0xffffff;
+    uint32_t h = (dorol ? lj_rol(lj_rol(k, r>>5) - k, r&31) :
+			  (((k << (r>>5)) - k) << (r&31))) % sz;
+    if (htab[h] != 0xffffffff) {  /* Collision on primary slot. */
+      if (htab[h+1] != 0xffffffff) {  /* Collision on secondary slot. */
+	/* Try to move the colliding key, if possible. */
+	if (h < sz-1 && htab[h+2] == 0xffffffff) {
+	  uint32_t k2 = htab[h+1] & 0xffffff;
+	  uint32_t h2 = (dorol ? lj_rol(lj_rol(k2, r>>5) - k2, r&31) :
+				 (((k2 << (r>>5)) - k2) << (r&31))) % sz;
+	  if (h2 != h+1) return 0;  /* Cannot resolve collision. */
+	  htab[h+2] = htab[h+1];  /* Move colliding key to secondary slot. */
+	} else {
+	  return 0;  /* Collision. */
+	}
+      }
+      htab[h+1] = key;
+    } else {
+      htab[h] = key;
+    }
+  }
+  return 1;  /* Success, all keys could be stored. */
+}
+
+/* Print the generated hash table. */
+static void printhash(BuildCtx *ctx, uint32_t *htab, uint32_t sz)
+{
+  uint32_t i;
+  fprintf(ctx->fp, "static const uint32_t fold_hash[%d] = {\n0x%08x",
+	  sz+1, htab[0]);
+  for (i = 1; i < sz+1; i++)
+    fprintf(ctx->fp, ",\n0x%08x", htab[i]);
+  fprintf(ctx->fp, "\n};\n\n");
+}
+
+/* Exhaustive search for the shortest semi-perfect hash table. */
+static void makehash(BuildCtx *ctx)
+{
+  uint32_t htab[BUILD_MAX_FOLD*2+1];
+  uint32_t sz, r;
+  /* Search for the smallest hash table with an odd size. */
+  for (sz = (nkeys|1); sz < BUILD_MAX_FOLD*2; sz += 2) {
+    /* First try all shift hash combinations. */
+    for (r = 0; r < 32*32; r++) {
+      if (tryhash(htab, sz, r, 0)) {
+	printhash(ctx, htab, sz);
+	fprintf(ctx->fp,
+		"#define fold_hashkey(k)\t(((((k)<<%u)-(k))<<%u)%%%u)\n\n",
+		r>>5, r&31, sz);
+	return;
+      }
+    }
+    /* Then try all rotate hash combinations. */
+    for (r = 0; r < 32*32; r++) {
+      if (tryhash(htab, sz, r, 1)) {
+	printhash(ctx, htab, sz);
+	fprintf(ctx->fp,
+	  "#define fold_hashkey(k)\t(lj_rol(lj_rol((k),%u)-(k),%u)%%%u)\n\n",
+		r>>5, r&31, sz);
+	return;
+      }
+    }
+  }
+  fprintf(stderr, "Error: search for perfect hash failed\n");
+  exit(1);
+}
+
+/* Parse one token of a fold rule. */
+static uint32_t nexttoken(char **pp, int allowlit, int allowany)
+{
+  char *p = *pp;
+  if (p) {
+    uint32_t i;
+    char *q = strchr(p, ' ');
+    if (q) *q++ = '\0';
+    *pp = q;
+    if (allowlit && !strncmp(p, "IRFPM_", 6)) {
+      for (i = 0; irfpm_names[i]; i++)
+	if (!strcmp(irfpm_names[i], p+6))
+	  return i;
+    } else if (allowlit && !strncmp(p, "IRFL_", 5)) {
+      for (i = 0; irfield_names[i]; i++)
+	if (!strcmp(irfield_names[i], p+5))
+	  return i;
+    } else if (allowlit && !strncmp(p, "IRCALL_", 7)) {
+      for (i = 0; ircall_names[i]; i++)
+	if (!strcmp(ircall_names[i], p+7))
+	  return i;
+    } else if (allowlit && !strncmp(p, "IRCONV_", 7)) {
+      for (i = 0; irt_names[i]; i++) {
+	const char *r = strchr(p+7, '_');
+	if (r && !strncmp(irt_names[i], p+7, r-(p+7))) {
+	  uint32_t j;
+	  for (j = 0; irt_names[j]; j++)
+	    if (!strcmp(irt_names[j], r+1))
+	      return (i << 5) + j;
+	}
+      }
+    } else if (allowlit && *p >= '0' && *p <= '9') {
+      for (i = 0; *p >= '0' && *p <= '9'; p++)
+	i = i*10 + (*p - '0');
+      if (*p == '\0')
+	return i;
+    } else if (allowany && !strcmp("any", p)) {
+      return allowany;
+    } else {
+      for (i = 0; ir_names[i]; i++)
+	if (!strcmp(ir_names[i], p))
+	  return i;
+    }
+    fprintf(stderr, "Error: bad fold definition token \"%s\" at line %d\n", p, lineno);
+    exit(1);
+  }
+  return 0;
+}
+
+/* Parse a fold rule. */
+static void foldrule(char *p)
+{
+  uint32_t op = nexttoken(&p, 0, 0);
+  uint32_t left = nexttoken(&p, 0, 0x7f);
+  uint32_t right = nexttoken(&p, 1, 0x3ff);
+  uint32_t key = (funcidx << 24) | (op << 17) | (left << 10) | right;
+  uint32_t i;
+  if (nkeys >= BUILD_MAX_FOLD) {
+    fprintf(stderr, "Error: too many fold rules, increase BUILD_MAX_FOLD.\n");
+    exit(1);
+  }
+  /* Simple insertion sort to detect duplicates. */
+  for (i = nkeys; i > 0; i--) {
+    if ((foldkeys[i-1]&0xffffff) < (key & 0xffffff))
+      break;
+    if ((foldkeys[i-1]&0xffffff) == (key & 0xffffff)) {
+      fprintf(stderr, "Error: duplicate fold definition at line %d\n", lineno);
+      exit(1);
+    }
+    foldkeys[i] = foldkeys[i-1];
+  }
+  foldkeys[i] = key;
+  nkeys++;
+}
+
+/* Emit C source code for IR folding hash table. */
+void emit_fold(BuildCtx *ctx)
+{
+  char buf[256];  /* We don't care about analyzing lines longer than that. */
+  const char *fname = ctx->args[0];
+  FILE *fp;
+
+  if (fname == NULL) {
+    fprintf(stderr, "Error: missing input filename\n");
+    exit(1);
+  }
+
+  if (fname[0] == '-' && fname[1] == '\0') {
+    fp = stdin;
+  } else {
+    fp = fopen(fname, "r");
+    if (!fp) {
+      fprintf(stderr, "Error: cannot open input file '%s': %s\n",
+	      fname, strerror(errno));
+      exit(1);
+    }
+  }
+
+  fprintf(ctx->fp, "/* This is a generated file. DO NOT EDIT! */\n\n");
+  fprintf(ctx->fp, "static const FoldFunc fold_func[] = {\n");
+
+  lineno = 0;
+  funcidx = 0;
+  nkeys = 0;
+  while (fgets(buf, sizeof(buf), fp) != NULL) {
+    lineno++;
+    /* The prefix must be at the start of a line, otherwise it's ignored. */
+    if (!strncmp(buf, FOLDDEF_PREFIX, sizeof(FOLDDEF_PREFIX)-1)) {
+      char *p = buf+sizeof(FOLDDEF_PREFIX)-1;
+      char *q = strchr(p, ')');
+      if (p[0] == '(' && q) {
+	p++;
+	*q = '\0';
+	foldrule(p);
+      } else if ((p[0] == 'F' || p[0] == 'X') && p[1] == '(' && q) {
+	p += 2;
+	*q = '\0';
+	if (funcidx)
+	  fprintf(ctx->fp, ",\n");
+	if (p[-2] == 'X')
+	  fprintf(ctx->fp, "  %s", p);
+	else
+	  fprintf(ctx->fp, "  fold_%s", p);
+	funcidx++;
+      } else {
+	buf[strlen(buf)-1] = '\0';
+	fprintf(stderr, "Error: unknown fold definition tag %s%s at line %d\n",
+		FOLDDEF_PREFIX, p, lineno);
+	exit(1);
+      }
+    }
+  }
+  fclose(fp);
+  fprintf(ctx->fp, "\n};\n\n");
+
+  makehash(ctx);
+}
+#else
+void emit_fold(BuildCtx *ctx)
+{
+  UNUSED(ctx);
+}
+#endif
+
diff --git a/libs/luajit-cmake/luajit/src/host/buildvm_lib.c b/libs/luajit-cmake/luajit/src/host/buildvm_lib.c
new file mode 100644
index 0000000..b125ea1
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/host/buildvm_lib.c
@@ -0,0 +1,459 @@
+/*
+** LuaJIT VM builder: library definition compiler.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "buildvm.h"
+#include "lj_obj.h"
+#include "lj_bc.h"
+#include "lj_lib.h"
+#include "buildvm_libbc.h"
+
+/* Context for library definitions. */
+static uint8_t obuf[8192];
+static uint8_t *optr;
+static char modname[80];
+static size_t modnamelen;
+static char funcname[80];
+static int modstate, regfunc;
+static int ffid, recffid, ffasmfunc;
+
+enum {
+  REGFUNC_OK,
+  REGFUNC_NOREG,
+  REGFUNC_NOREGUV
+};
+
+static void libdef_name(const char *p, int kind)
+{
+  size_t n = strlen(p);
+  if (kind != LIBINIT_STRING) {
+    if (n > modnamelen && p[modnamelen] == '_' &&
+	!strncmp(p, modname, modnamelen)) {
+      p += modnamelen+1;
+      n -= modnamelen+1;
+    }
+  }
+  if (n > LIBINIT_MAXSTR) {
+    fprintf(stderr, "Error: string too long: '%s'\n",  p);
+    exit(1);
+  }
+  if (optr+1+n+2 > obuf+sizeof(obuf)) {  /* +2 for caller. */
+    fprintf(stderr, "Error: output buffer overflow\n");
+    exit(1);
+  }
+  *optr++ = (uint8_t)(n | kind);
+  memcpy(optr, p, n);
+  optr += n;
+}
+
+static void libdef_endmodule(BuildCtx *ctx)
+{
+  if (modstate != 0) {
+    char line[80];
+    const uint8_t *p;
+    int n;
+    if (modstate == 1)
+      fprintf(ctx->fp, "  (lua_CFunction)0");
+    fprintf(ctx->fp, "\n};\n");
+    fprintf(ctx->fp, "static const uint8_t %s%s[] = {\n",
+	    LABEL_PREFIX_LIBINIT, modname);
+    line[0] = '\0';
+    for (n = 0, p = obuf; p < optr; p++) {
+      n += sprintf(line+n, "%d,", *p);
+      if (n >= 75) {
+	fprintf(ctx->fp, "%s\n", line);
+	n = 0;
+	line[0] = '\0';
+      }
+    }
+    fprintf(ctx->fp, "%s%d\n};\n#endif\n\n", line, LIBINIT_END);
+  }
+}
+
+static void libdef_module(BuildCtx *ctx, char *p, int arg)
+{
+  UNUSED(arg);
+  if (ctx->mode == BUILD_libdef) {
+    libdef_endmodule(ctx);
+    optr = obuf;
+    *optr++ = (uint8_t)ffid;
+    *optr++ = (uint8_t)ffasmfunc;
+    *optr++ = 0;  /* Hash table size. */
+    modstate = 1;
+    fprintf(ctx->fp, "#ifdef %sMODULE_%s\n", LIBDEF_PREFIX, p);
+    fprintf(ctx->fp, "#undef %sMODULE_%s\n", LIBDEF_PREFIX, p);
+    fprintf(ctx->fp, "static const lua_CFunction %s%s[] = {\n",
+	    LABEL_PREFIX_LIBCF, p);
+  }
+  modnamelen = strlen(p);
+  if (modnamelen > sizeof(modname)-1) {
+    fprintf(stderr, "Error: module name too long: '%s'\n", p);
+    exit(1);
+  }
+  strcpy(modname, p);
+}
+
+static int find_ffofs(BuildCtx *ctx, const char *name)
+{
+  int i;
+  for (i = 0; i < ctx->nglob; i++) {
+    const char *gl = ctx->globnames[i];
+    if (gl[0] == 'f' && gl[1] == 'f' && gl[2] == '_' && !strcmp(gl+3, name)) {
+      return (int)((uint8_t *)ctx->glob[i] - ctx->code);
+    }
+  }
+  fprintf(stderr, "Error: undefined fast function %s%s\n",
+	  LABEL_PREFIX_FF, name);
+  exit(1);
+}
+
+static void libdef_func(BuildCtx *ctx, char *p, int arg)
+{
+  if (arg != LIBINIT_CF)
+    ffasmfunc++;
+  if (ctx->mode == BUILD_libdef) {
+    if (modstate == 0) {
+      fprintf(stderr, "Error: no module for function definition %s\n", p);
+      exit(1);
+    }
+    if (regfunc == REGFUNC_NOREG) {
+      if (optr+1 > obuf+sizeof(obuf)) {
+	fprintf(stderr, "Error: output buffer overflow\n");
+	exit(1);
+      }
+      *optr++ = LIBINIT_FFID;
+    } else {
+      if (arg != LIBINIT_ASM_) {
+	if (modstate != 1) fprintf(ctx->fp, ",\n");
+	modstate = 2;
+	fprintf(ctx->fp, "  %s%s", arg ? LABEL_PREFIX_FFH : LABEL_PREFIX_CF, p);
+      }
+      if (regfunc != REGFUNC_NOREGUV) obuf[2]++;  /* Bump hash table size. */
+      libdef_name(regfunc == REGFUNC_NOREGUV ? "" : p, arg);
+    }
+  } else if (ctx->mode == BUILD_ffdef) {
+    fprintf(ctx->fp, "FFDEF(%s)\n", p);
+  } else if (ctx->mode == BUILD_recdef) {
+    if (strlen(p) > sizeof(funcname)-1) {
+      fprintf(stderr, "Error: function name too long: '%s'\n", p);
+      exit(1);
+    }
+    strcpy(funcname, p);
+  } else if (ctx->mode == BUILD_vmdef) {
+    int i;
+    for (i = 1; p[i] && modname[i-1]; i++)
+      if (p[i] == '_') p[i] = '.';
+    fprintf(ctx->fp, "\"%s\",\n", p);
+  } else if (ctx->mode == BUILD_bcdef) {
+    if (arg != LIBINIT_CF)
+      fprintf(ctx->fp, ",\n%d", find_ffofs(ctx, p));
+  }
+  ffid++;
+  regfunc = REGFUNC_OK;
+}
+
+static uint8_t *libdef_uleb128(uint8_t *p, uint32_t *vv)
+{
+  uint32_t v = *p++;
+  if (v >= 0x80) {
+    int sh = 0; v &= 0x7f;
+    do { v |= ((*p & 0x7f) << (sh += 7)); } while (*p++ >= 0x80);
+  }
+  *vv = v;
+  return p;
+}
+
+static void libdef_fixupbc(uint8_t *p)
+{
+  uint32_t i, sizebc;
+  p += 4;
+  p = libdef_uleb128(p, &sizebc);
+  p = libdef_uleb128(p, &sizebc);
+  p = libdef_uleb128(p, &sizebc);
+  for (i = 0; i < sizebc; i++, p += 4) {
+    uint8_t op = p[libbc_endian ? 3 : 0];
+    uint8_t ra = p[libbc_endian ? 2 : 1];
+    uint8_t rc = p[libbc_endian ? 1 : 2];
+    uint8_t rb = p[libbc_endian ? 0 : 3];
+    if (!LJ_DUALNUM && op == BC_ISTYPE && rc == ~LJ_TNUMX+1) {
+      op = BC_ISNUM; rc++;
+    }
+    p[LJ_ENDIAN_SELECT(0, 3)] = op;
+    p[LJ_ENDIAN_SELECT(1, 2)] = ra;
+    p[LJ_ENDIAN_SELECT(2, 1)] = rc;
+    p[LJ_ENDIAN_SELECT(3, 0)] = rb;
+  }
+}
+
+static void libdef_lua(BuildCtx *ctx, char *p, int arg)
+{
+  UNUSED(arg);
+  if (ctx->mode == BUILD_libdef) {
+    int i;
+    for (i = 0; libbc_map[i].name != NULL; i++) {
+      if (!strcmp(libbc_map[i].name, p)) {
+	int ofs = libbc_map[i].ofs;
+	int len = libbc_map[i+1].ofs - ofs;
+	obuf[2]++;  /* Bump hash table size. */
+	*optr++ = LIBINIT_LUA;
+	libdef_name(p, 0);
+	memcpy(optr, libbc_code + ofs, len);
+	libdef_fixupbc(optr);
+	optr += len;
+	return;
+      }
+    }
+    fprintf(stderr, "Error: missing libbc definition for %s\n", p);
+    exit(1);
+  }
+}
+
+static uint32_t find_rec(char *name)
+{
+  char *p = (char *)obuf;
+  uint32_t n;
+  for (n = 2; *p; n++) {
+    if (strcmp(p, name) == 0)
+      return n;
+    p += strlen(p)+1;
+  }
+  if (p+strlen(name)+1 >= (char *)obuf+sizeof(obuf)) {
+    fprintf(stderr, "Error: output buffer overflow\n");
+    exit(1);
+  }
+  strcpy(p, name);
+  return n;
+}
+
+static void libdef_rec(BuildCtx *ctx, char *p, int arg)
+{
+  UNUSED(arg);
+  if (ctx->mode == BUILD_recdef) {
+    char *q;
+    uint32_t n;
+    for (; recffid+1 < ffid; recffid++)
+      fprintf(ctx->fp, ",\n0");
+    recffid = ffid;
+    if (*p == '.') p = funcname;
+    q = strchr(p, ' ');
+    if (q) *q++ = '\0';
+    n = find_rec(p);
+    if (q)
+      fprintf(ctx->fp, ",\n0x%02x00+(%s)", n, q);
+    else
+      fprintf(ctx->fp, ",\n0x%02x00", n);
+  }
+}
+
+static void memcpy_endian(void *dst, void *src, size_t n)
+{
+  union { uint8_t b; uint32_t u; } host_endian;
+  host_endian.u = 1;
+  if (host_endian.b == LJ_ENDIAN_SELECT(1, 0)) {
+    memcpy(dst, src, n);
+  } else {
+    size_t i;
+    for (i = 0; i < n; i++)
+      ((uint8_t *)dst)[i] = ((uint8_t *)src)[n-i-1];
+  }
+}
+
+static void libdef_push(BuildCtx *ctx, char *p, int arg)
+{
+  UNUSED(arg);
+  if (ctx->mode == BUILD_libdef) {
+    int len = (int)strlen(p);
+    if (*p == '"') {
+      if (len > 1 && p[len-1] == '"') {
+	p[len-1] = '\0';
+	libdef_name(p+1, LIBINIT_STRING);
+	return;
+      }
+    } else if (*p >= '0' && *p <= '9') {
+      char *ep;
+      double d = strtod(p, &ep);
+      if (*ep == '\0') {
+	if (optr+1+sizeof(double) > obuf+sizeof(obuf)) {
+	  fprintf(stderr, "Error: output buffer overflow\n");
+	  exit(1);
+	}
+	*optr++ = LIBINIT_NUMBER;
+	memcpy_endian(optr, &d, sizeof(double));
+	optr += sizeof(double);
+	return;
+      }
+    } else if (!strcmp(p, "lastcl")) {
+      if (optr+1 > obuf+sizeof(obuf)) {
+	fprintf(stderr, "Error: output buffer overflow\n");
+	exit(1);
+      }
+      *optr++ = LIBINIT_LASTCL;
+      return;
+    } else if (len > 4 && !strncmp(p, "top-", 4)) {
+      if (optr+2 > obuf+sizeof(obuf)) {
+	fprintf(stderr, "Error: output buffer overflow\n");
+	exit(1);
+      }
+      *optr++ = LIBINIT_COPY;
+      *optr++ = (uint8_t)atoi(p+4);
+      return;
+    }
+    fprintf(stderr, "Error: bad value for %sPUSH(%s)\n", LIBDEF_PREFIX, p);
+    exit(1);
+  }
+}
+
+static void libdef_set(BuildCtx *ctx, char *p, int arg)
+{
+  UNUSED(arg);
+  if (ctx->mode == BUILD_libdef) {
+    if (p[0] == '!' && p[1] == '\0') p[0] = '\0';  /* Set env. */
+    libdef_name(p, LIBINIT_STRING);
+    *optr++ = LIBINIT_SET;
+    obuf[2]++;  /* Bump hash table size. */
+  }
+}
+
+static void libdef_regfunc(BuildCtx *ctx, char *p, int arg)
+{
+  UNUSED(ctx); UNUSED(p);
+  regfunc = arg;
+}
+
+typedef void (*LibDefFunc)(BuildCtx *ctx, char *p, int arg);
+
+typedef struct LibDefHandler {
+  const char *suffix;
+  const char *stop;
+  const LibDefFunc func;
+  const int arg;
+} LibDefHandler;
+
+static const LibDefHandler libdef_handlers[] = {
+  { "MODULE_",	" \t\r\n",	libdef_module,		0 },
+  { "CF(",	")",		libdef_func,		LIBINIT_CF },
+  { "ASM(",	")",		libdef_func,		LIBINIT_ASM },
+  { "ASM_(",	")",		libdef_func,		LIBINIT_ASM_ },
+  { "LUA(",	")",		libdef_lua,		0 },
+  { "REC(",	")",		libdef_rec,		0 },
+  { "PUSH(",	")",		libdef_push,		0 },
+  { "SET(",	")",		libdef_set,		0 },
+  { "NOREGUV",	NULL,		libdef_regfunc,		REGFUNC_NOREGUV },
+  { "NOREG",	NULL,		libdef_regfunc,		REGFUNC_NOREG },
+  { NULL,	NULL,		(LibDefFunc)0,		0 }
+};
+
+/* Emit C source code for library function definitions. */
+void emit_lib(BuildCtx *ctx)
+{
+  const char *fname;
+
+  if (ctx->mode == BUILD_ffdef || ctx->mode == BUILD_libdef ||
+      ctx->mode == BUILD_recdef)
+    fprintf(ctx->fp, "/* This is a generated file. DO NOT EDIT! */\n\n");
+  else if (ctx->mode == BUILD_vmdef)
+    fprintf(ctx->fp, "ffnames = {\n[0]=\"Lua\",\n\"C\",\n");
+  if (ctx->mode == BUILD_recdef)
+    fprintf(ctx->fp, "static const uint16_t recff_idmap[] = {\n0,\n0x0100");
+  recffid = ffid = FF_C+1;
+  ffasmfunc = 0;
+
+  while ((fname = *ctx->args++)) {
+    char buf[256];  /* We don't care about analyzing lines longer than that. */
+    FILE *fp;
+    if (fname[0] == '-' && fname[1] == '\0') {
+      fp = stdin;
+    } else {
+      fp = fopen(fname, "r");
+      if (!fp) {
+	fprintf(stderr, "Error: cannot open input file '%s': %s\n",
+		fname, strerror(errno));
+	exit(1);
+      }
+    }
+    modstate = 0;
+    regfunc = REGFUNC_OK;
+    while (fgets(buf, sizeof(buf), fp) != NULL) {
+      char *p;
+      /* Simplistic pre-processor. Only handles top-level #if/#endif. */
+      if (buf[0] == '#' && buf[1] == 'i' && buf[2] == 'f') {
+	int ok = 1;
+	if (!strcmp(buf, "#if LJ_52\n"))
+	  ok = LJ_52;
+	else if (!strcmp(buf, "#if LJ_HASJIT\n"))
+	  ok = LJ_HASJIT;
+	else if (!strcmp(buf, "#if LJ_HASFFI\n"))
+	  ok = LJ_HASFFI;
+	else if (!strcmp(buf, "#if LJ_HASBUFFER\n"))
+	  ok = LJ_HASBUFFER;
+	if (!ok) {
+	  int lvl = 1;
+	  while (fgets(buf, sizeof(buf), fp) != NULL) {
+	    if (buf[0] == '#' && buf[1] == 'e' && buf[2] == 'n') {
+	      if (--lvl == 0) break;
+	    } else if (buf[0] == '#' && buf[1] == 'i' && buf[2] == 'f') {
+	      lvl++;
+	    }
+	  }
+	  continue;
+	}
+      }
+      for (p = buf; (p = strstr(p, LIBDEF_PREFIX)) != NULL; ) {
+	const LibDefHandler *ldh;
+	p += sizeof(LIBDEF_PREFIX)-1;
+	for (ldh = libdef_handlers; ldh->suffix != NULL; ldh++) {
+	  size_t n, len = strlen(ldh->suffix);
+	  if (!strncmp(p, ldh->suffix, len)) {
+	    p += len;
+	    n = ldh->stop ? strcspn(p, ldh->stop) : 0;
+	    if (!p[n]) break;
+	    p[n] = '\0';
+	    ldh->func(ctx, p, ldh->arg);
+	    p += n+1;
+	    break;
+	  }
+	}
+	if (ldh->suffix == NULL) {
+	  buf[strlen(buf)-1] = '\0';
+	  fprintf(stderr, "Error: unknown library definition tag %s%s\n",
+		  LIBDEF_PREFIX, p);
+	  exit(1);
+	}
+      }
+    }
+    fclose(fp);
+    if (ctx->mode == BUILD_libdef) {
+      libdef_endmodule(ctx);
+    }
+  }
+
+  if (ctx->mode == BUILD_ffdef) {
+    fprintf(ctx->fp, "\n#undef FFDEF\n\n");
+    fprintf(ctx->fp,
+      "#ifndef FF_NUM_ASMFUNC\n#define FF_NUM_ASMFUNC %d\n#endif\n\n",
+      ffasmfunc);
+  } else if (ctx->mode == BUILD_vmdef) {
+    fprintf(ctx->fp, "},\n\n");
+  } else if (ctx->mode == BUILD_bcdef) {
+    int i;
+    fprintf(ctx->fp, "\n};\n\n");
+    fprintf(ctx->fp, "LJ_DATADEF const uint16_t lj_bc_mode[] = {\n");
+    fprintf(ctx->fp, "BCDEF(BCMODE)\n");
+    for (i = ffasmfunc-1; i > 0; i--)
+      fprintf(ctx->fp, "BCMODE_FF,\n");
+    fprintf(ctx->fp, "BCMODE_FF\n};\n\n");
+  } else if (ctx->mode == BUILD_recdef) {
+    char *p = (char *)obuf;
+    fprintf(ctx->fp, "\n};\n\n");
+    fprintf(ctx->fp, "static const RecordFunc recff_func[] = {\n"
+	    "recff_nyi,\n"
+	    "recff_c");
+    while (*p) {
+      fprintf(ctx->fp, ",\nrecff_%s", p);
+      p += strlen(p)+1;
+    }
+    fprintf(ctx->fp, "\n};\n\n");
+  }
+}
+
diff --git a/libs/luajit-cmake/luajit/src/host/buildvm_libbc.h b/libs/luajit-cmake/luajit/src/host/buildvm_libbc.h
new file mode 100644
index 0000000..276463b
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/host/buildvm_libbc.h
@@ -0,0 +1,81 @@
+/* This is a generated file. DO NOT EDIT! */
+
+static const int libbc_endian = 0;
+
+static const uint8_t libbc_code[] = {
+#if LJ_FR2
+/* math.deg */ 0,1,2,0,0,1,2,BC_MULVN,1,0,0,BC_RET1,1,2,0,241,135,158,166,3,
+220,203,178,130,4,
+/* math.rad */ 0,1,2,0,0,1,2,BC_MULVN,1,0,0,BC_RET1,1,2,0,243,244,148,165,20,
+198,190,199,252,3,
+/* string.len */ 0,1,2,0,0,0,3,BC_ISTYPE,0,5,0,BC_LEN,1,0,0,BC_RET1,1,2,0,
+/* table.foreachi */ 0,2,10,0,0,0,15,BC_ISTYPE,0,12,0,BC_ISTYPE,1,9,0,
+BC_KSHORT,2,1,0,BC_LEN,3,0,0,BC_KSHORT,4,1,0,BC_FORI,2,8,128,BC_MOV,6,1,0,
+BC_MOV,8,5,0,BC_TGETR,9,5,0,BC_CALL,6,3,2,BC_ISEQP,6,0,0,BC_JMP,7,1,128,
+BC_RET1,6,2,0,BC_FORL,2,248,127,BC_RET0,0,1,0,
+/* table.foreach */ 0,2,11,0,0,1,16,BC_ISTYPE,0,12,0,BC_ISTYPE,1,9,0,BC_KPRI,
+2,0,0,BC_MOV,3,0,0,BC_KNUM,4,0,0,BC_JMP,5,7,128,BC_MOV,7,1,0,BC_MOV,9,5,0,
+BC_MOV,10,6,0,BC_CALL,7,3,2,BC_ISEQP,7,0,0,BC_JMP,8,1,128,BC_RET1,7,2,0,
+BC_ITERN,5,3,3,BC_ITERL,5,247,127,BC_RET0,0,1,0,1,255,255,249,255,15,
+/* table.getn */ 0,1,2,0,0,0,3,BC_ISTYPE,0,12,0,BC_LEN,1,0,0,BC_RET1,1,2,0,
+/* table.remove */ 0,2,10,0,0,2,30,BC_ISTYPE,0,12,0,BC_LEN,2,0,0,BC_ISNEP,1,0,
+0,BC_JMP,3,7,128,BC_ISEQN,2,0,0,BC_JMP,3,23,128,BC_TGETR,3,2,0,BC_KPRI,4,0,0,
+BC_TSETR,4,2,0,BC_RET1,3,2,0,BC_JMP,3,18,128,BC_ISTYPE,1,14,0,BC_KSHORT,3,1,0,
+BC_ISGT,3,1,0,BC_JMP,3,14,128,BC_ISGT,1,2,0,BC_JMP,3,12,128,BC_TGETR,3,1,0,
+BC_ADDVN,4,1,1,BC_MOV,5,2,0,BC_KSHORT,6,1,0,BC_FORI,4,4,128,BC_SUBVN,8,1,7,
+BC_TGETR,9,7,0,BC_TSETR,9,8,0,BC_FORL,4,252,127,BC_KPRI,4,0,0,BC_TSETR,4,2,0,
+BC_RET1,3,2,0,BC_RET0,0,1,0,0,2,
+/* table.move */ 0,5,12,0,0,0,35,BC_ISTYPE,0,12,0,BC_ISTYPE,1,14,0,BC_ISTYPE,
+2,14,0,BC_ISTYPE,3,14,0,BC_ISNEP,4,0,0,BC_JMP,5,1,128,BC_MOV,4,0,0,BC_ISTYPE,
+4,12,0,BC_ISGT,1,2,0,BC_JMP,5,24,128,BC_SUBVV,5,1,3,BC_ISLT,2,3,0,BC_JMP,6,4,
+128,BC_ISLE,3,1,0,BC_JMP,6,2,128,BC_ISEQV,4,0,0,BC_JMP,6,9,128,BC_MOV,6,1,0,
+BC_MOV,7,2,0,BC_KSHORT,8,1,0,BC_FORI,6,4,128,BC_ADDVV,10,5,9,BC_TGETR,11,9,0,
+BC_TSETR,11,10,4,BC_FORL,6,252,127,BC_JMP,6,8,128,BC_MOV,6,2,0,BC_MOV,7,1,0,
+BC_KSHORT,8,255,255,BC_FORI,6,4,128,BC_ADDVV,10,5,9,BC_TGETR,11,9,0,BC_TSETR,
+11,10,4,BC_FORL,6,252,127,BC_RET1,4,2,0,
+#else
+/* math.deg */ 0,1,2,0,0,1,2,BC_MULVN,1,0,0,BC_RET1,1,2,0,241,135,158,166,3,
+220,203,178,130,4,
+/* math.rad */ 0,1,2,0,0,1,2,BC_MULVN,1,0,0,BC_RET1,1,2,0,243,244,148,165,20,
+198,190,199,252,3,
+/* string.len */ 0,1,2,0,0,0,3,BC_ISTYPE,0,5,0,BC_LEN,1,0,0,BC_RET1,1,2,0,
+/* table.foreachi */ 0,2,9,0,0,0,15,BC_ISTYPE,0,12,0,BC_ISTYPE,1,9,0,
+BC_KSHORT,2,1,0,BC_LEN,3,0,0,BC_KSHORT,4,1,0,BC_FORI,2,8,128,BC_MOV,6,1,0,
+BC_MOV,7,5,0,BC_TGETR,8,5,0,BC_CALL,6,3,2,BC_ISEQP,6,0,0,BC_JMP,7,1,128,
+BC_RET1,6,2,0,BC_FORL,2,248,127,BC_RET0,0,1,0,
+/* table.foreach */ 0,2,10,0,0,1,16,BC_ISTYPE,0,12,0,BC_ISTYPE,1,9,0,BC_KPRI,
+2,0,0,BC_MOV,3,0,0,BC_KNUM,4,0,0,BC_JMP,5,7,128,BC_MOV,7,1,0,BC_MOV,8,5,0,
+BC_MOV,9,6,0,BC_CALL,7,3,2,BC_ISEQP,7,0,0,BC_JMP,8,1,128,BC_RET1,7,2,0,
+BC_ITERN,5,3,3,BC_ITERL,5,247,127,BC_RET0,0,1,0,1,255,255,249,255,15,
+/* table.getn */ 0,1,2,0,0,0,3,BC_ISTYPE,0,12,0,BC_LEN,1,0,0,BC_RET1,1,2,0,
+/* table.remove */ 0,2,10,0,0,2,30,BC_ISTYPE,0,12,0,BC_LEN,2,0,0,BC_ISNEP,1,0,
+0,BC_JMP,3,7,128,BC_ISEQN,2,0,0,BC_JMP,3,23,128,BC_TGETR,3,2,0,BC_KPRI,4,0,0,
+BC_TSETR,4,2,0,BC_RET1,3,2,0,BC_JMP,3,18,128,BC_ISTYPE,1,14,0,BC_KSHORT,3,1,0,
+BC_ISGT,3,1,0,BC_JMP,3,14,128,BC_ISGT,1,2,0,BC_JMP,3,12,128,BC_TGETR,3,1,0,
+BC_ADDVN,4,1,1,BC_MOV,5,2,0,BC_KSHORT,6,1,0,BC_FORI,4,4,128,BC_SUBVN,8,1,7,
+BC_TGETR,9,7,0,BC_TSETR,9,8,0,BC_FORL,4,252,127,BC_KPRI,4,0,0,BC_TSETR,4,2,0,
+BC_RET1,3,2,0,BC_RET0,0,1,0,0,2,
+/* table.move */ 0,5,12,0,0,0,35,BC_ISTYPE,0,12,0,BC_ISTYPE,1,14,0,BC_ISTYPE,
+2,14,0,BC_ISTYPE,3,14,0,BC_ISNEP,4,0,0,BC_JMP,5,1,128,BC_MOV,4,0,0,BC_ISTYPE,
+4,12,0,BC_ISGT,1,2,0,BC_JMP,5,24,128,BC_SUBVV,5,1,3,BC_ISLT,2,3,0,BC_JMP,6,4,
+128,BC_ISLE,3,1,0,BC_JMP,6,2,128,BC_ISEQV,4,0,0,BC_JMP,6,9,128,BC_MOV,6,1,0,
+BC_MOV,7,2,0,BC_KSHORT,8,1,0,BC_FORI,6,4,128,BC_ADDVV,10,5,9,BC_TGETR,11,9,0,
+BC_TSETR,11,10,4,BC_FORL,6,252,127,BC_JMP,6,8,128,BC_MOV,6,2,0,BC_MOV,7,1,0,
+BC_KSHORT,8,255,255,BC_FORI,6,4,128,BC_ADDVV,10,5,9,BC_TGETR,11,9,0,BC_TSETR,
+11,10,4,BC_FORL,6,252,127,BC_RET1,4,2,0,
+#endif
+0
+};
+
+static const struct { const char *name; int ofs; } libbc_map[] = {
+{"math_deg",0},
+{"math_rad",25},
+{"string_len",50},
+{"table_foreachi",69},
+{"table_foreach",136},
+{"table_getn",213},
+{"table_remove",232},
+{"table_move",361},
+{NULL,508}
+};
+
diff --git a/libs/luajit-cmake/luajit/src/host/buildvm_peobj.c b/libs/luajit-cmake/luajit/src/host/buildvm_peobj.c
new file mode 100644
index 0000000..b030f23
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/host/buildvm_peobj.c
@@ -0,0 +1,379 @@
+/*
+** LuaJIT VM builder: PE object emitter.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Only used for building on Windows, since we cannot assume the presence
+** of a suitable assembler. The host and target byte order must match.
+*/
+
+#include "buildvm.h"
+#include "lj_bc.h"
+
+#if LJ_TARGET_X86ORX64
+
+/* Context for PE object emitter. */
+static char *strtab;
+static size_t strtabofs;
+
+/* -- PE object definitions ----------------------------------------------- */
+
+/* PE header. */
+typedef struct PEheader {
+  uint16_t arch;
+  uint16_t nsects;
+  uint32_t time;
+  uint32_t symtabofs;
+  uint32_t nsyms;
+  uint16_t opthdrsz;
+  uint16_t flags;
+} PEheader;
+
+/* PE section. */
+typedef struct PEsection {
+  char name[8];
+  uint32_t vsize;
+  uint32_t vaddr;
+  uint32_t size;
+  uint32_t ofs;
+  uint32_t relocofs;
+  uint32_t lineofs;
+  uint16_t nreloc;
+  uint16_t nline;
+  uint32_t flags;
+} PEsection;
+
+/* PE relocation. */
+typedef struct PEreloc {
+  uint32_t vaddr;
+  uint32_t symidx;
+  uint16_t type;
+} PEreloc;
+
+/* Cannot use sizeof, because it pads up to the max. alignment. */
+#define PEOBJ_RELOC_SIZE	(4+4+2)
+
+/* PE symbol table entry. */
+typedef struct PEsym {
+  union {
+    char name[8];
+    uint32_t nameref[2];
+  } n;
+  uint32_t value;
+  int16_t sect;
+  uint16_t type;
+  uint8_t scl;
+  uint8_t naux;
+} PEsym;
+
+/* PE symbol table auxiliary entry for a section. */
+typedef struct PEsymaux {
+  uint32_t size;
+  uint16_t nreloc;
+  uint16_t nline;
+  uint32_t cksum;
+  uint16_t assoc;
+  uint8_t comdatsel;
+  uint8_t unused[3];
+} PEsymaux;
+
+/* Cannot use sizeof, because it pads up to the max. alignment. */
+#define PEOBJ_SYM_SIZE	(8+4+2+2+1+1)
+
+/* PE object CPU specific defines. */
+#if LJ_TARGET_X86
+#define PEOBJ_ARCH_TARGET	0x014c
+#define PEOBJ_RELOC_REL32	0x14  /* MS: REL32, GNU: DISP32. */
+#define PEOBJ_RELOC_DIR32	0x06
+#define PEOBJ_RELOC_OFS		0
+#define PEOBJ_TEXT_FLAGS	0x60500020  /* 60=r+x, 50=align16, 20=code. */
+#elif LJ_TARGET_X64
+#define PEOBJ_ARCH_TARGET	0x8664
+#define PEOBJ_RELOC_REL32	0x04  /* MS: REL32, GNU: DISP32. */
+#define PEOBJ_RELOC_DIR32	0x02
+#define PEOBJ_RELOC_ADDR32NB	0x03
+#define PEOBJ_RELOC_OFS		0
+#define PEOBJ_TEXT_FLAGS	0x60500020  /* 60=r+x, 50=align16, 20=code. */
+#endif
+
+/* Section numbers (0-based). */
+enum {
+  PEOBJ_SECT_ABS = -2,
+  PEOBJ_SECT_UNDEF = -1,
+  PEOBJ_SECT_TEXT,
+#if LJ_TARGET_X64
+  PEOBJ_SECT_PDATA,
+  PEOBJ_SECT_XDATA,
+#elif LJ_TARGET_X86
+  PEOBJ_SECT_SXDATA,
+#endif
+  PEOBJ_SECT_RDATA_Z,
+  PEOBJ_NSECTIONS
+};
+
+/* Symbol types. */
+#define PEOBJ_TYPE_NULL		0
+#define PEOBJ_TYPE_FUNC		0x20
+
+/* Symbol storage class. */
+#define PEOBJ_SCL_EXTERN	2
+#define PEOBJ_SCL_STATIC	3
+
+/* -- PE object emitter --------------------------------------------------- */
+
+/* Emit PE object symbol. */
+static void emit_peobj_sym(BuildCtx *ctx, const char *name, uint32_t value,
+			   int sect, int type, int scl)
+{
+  PEsym sym;
+  size_t len = strlen(name);
+  if (!strtab) {  /* Pass 1: only calculate string table length. */
+    if (len > 8) strtabofs += len+1;
+    return;
+  }
+  if (len <= 8) {
+    memcpy(sym.n.name, name, len);
+    memset(sym.n.name+len, 0, 8-len);
+  } else {
+    sym.n.nameref[0] = 0;
+    sym.n.nameref[1] = (uint32_t)strtabofs;
+    memcpy(strtab + strtabofs, name, len);
+    strtab[strtabofs+len] = 0;
+    strtabofs += len+1;
+  }
+  sym.value = value;
+  sym.sect = (int16_t)(sect+1);  /* 1-based section number. */
+  sym.type = (uint16_t)type;
+  sym.scl = (uint8_t)scl;
+  sym.naux = 0;
+  owrite(ctx, &sym, PEOBJ_SYM_SIZE);
+}
+
+/* Emit PE object section symbol. */
+static void emit_peobj_sym_sect(BuildCtx *ctx, PEsection *pesect, int sect)
+{
+  PEsym sym;
+  PEsymaux aux;
+  if (!strtab) return;  /* Pass 1: no output. */
+  memcpy(sym.n.name, pesect[sect].name, 8);
+  sym.value = 0;
+  sym.sect = (int16_t)(sect+1);  /* 1-based section number. */
+  sym.type = PEOBJ_TYPE_NULL;
+  sym.scl = PEOBJ_SCL_STATIC;
+  sym.naux = 1;
+  owrite(ctx, &sym, PEOBJ_SYM_SIZE);
+  memset(&aux, 0, sizeof(PEsymaux));
+  aux.size = pesect[sect].size;
+  aux.nreloc = pesect[sect].nreloc;
+  owrite(ctx, &aux, PEOBJ_SYM_SIZE);
+}
+
+/* Emit Windows PE object file. */
+void emit_peobj(BuildCtx *ctx)
+{
+  PEheader pehdr;
+  PEsection pesect[PEOBJ_NSECTIONS];
+  uint32_t sofs;
+  int i, nrsym;
+  union { uint8_t b; uint32_t u; } host_endian;
+
+  sofs = sizeof(PEheader) + PEOBJ_NSECTIONS*sizeof(PEsection);
+
+  /* Fill in PE sections. */
+  memset(&pesect, 0, PEOBJ_NSECTIONS*sizeof(PEsection));
+  memcpy(pesect[PEOBJ_SECT_TEXT].name, ".text", sizeof(".text")-1);
+  pesect[PEOBJ_SECT_TEXT].ofs = sofs;
+  sofs += (pesect[PEOBJ_SECT_TEXT].size = (uint32_t)ctx->codesz);
+  pesect[PEOBJ_SECT_TEXT].relocofs = sofs;
+  sofs += (pesect[PEOBJ_SECT_TEXT].nreloc = (uint16_t)ctx->nreloc) * PEOBJ_RELOC_SIZE;
+  /* Flags: 60 = read+execute, 50 = align16, 20 = code. */
+  pesect[PEOBJ_SECT_TEXT].flags = PEOBJ_TEXT_FLAGS;
+
+#if LJ_TARGET_X64
+  memcpy(pesect[PEOBJ_SECT_PDATA].name, ".pdata", sizeof(".pdata")-1);
+  pesect[PEOBJ_SECT_PDATA].ofs = sofs;
+  sofs += (pesect[PEOBJ_SECT_PDATA].size = 6*4);
+  pesect[PEOBJ_SECT_PDATA].relocofs = sofs;
+  sofs += (pesect[PEOBJ_SECT_PDATA].nreloc = 6) * PEOBJ_RELOC_SIZE;
+  /* Flags: 40 = read, 30 = align4, 40 = initialized data. */
+  pesect[PEOBJ_SECT_PDATA].flags = 0x40300040;
+
+  memcpy(pesect[PEOBJ_SECT_XDATA].name, ".xdata", sizeof(".xdata")-1);
+  pesect[PEOBJ_SECT_XDATA].ofs = sofs;
+  sofs += (pesect[PEOBJ_SECT_XDATA].size = 8*2+4+6*2);  /* See below. */
+  pesect[PEOBJ_SECT_XDATA].relocofs = sofs;
+  sofs += (pesect[PEOBJ_SECT_XDATA].nreloc = 1) * PEOBJ_RELOC_SIZE;
+  /* Flags: 40 = read, 30 = align4, 40 = initialized data. */
+  pesect[PEOBJ_SECT_XDATA].flags = 0x40300040;
+#elif LJ_TARGET_X86
+  memcpy(pesect[PEOBJ_SECT_SXDATA].name, ".sxdata", sizeof(".sxdata")-1);
+  pesect[PEOBJ_SECT_SXDATA].ofs = sofs;
+  sofs += (pesect[PEOBJ_SECT_SXDATA].size = 4);
+  pesect[PEOBJ_SECT_SXDATA].relocofs = sofs;
+  /* Flags: 40 = read, 30 = align4, 02 = lnk_info, 40 = initialized data. */
+  pesect[PEOBJ_SECT_SXDATA].flags = 0x40300240;
+#endif
+
+  memcpy(pesect[PEOBJ_SECT_RDATA_Z].name, ".rdata$Z", sizeof(".rdata$Z")-1);
+  pesect[PEOBJ_SECT_RDATA_Z].ofs = sofs;
+  sofs += (pesect[PEOBJ_SECT_RDATA_Z].size = (uint32_t)strlen(ctx->dasm_ident)+1);
+  /* Flags: 40 = read, 30 = align4, 40 = initialized data. */
+  pesect[PEOBJ_SECT_RDATA_Z].flags = 0x40300040;
+
+  /* Fill in PE header. */
+  pehdr.arch = PEOBJ_ARCH_TARGET;
+  pehdr.nsects = PEOBJ_NSECTIONS;
+  pehdr.time = 0;  /* Timestamp is optional. */
+  pehdr.symtabofs = sofs;
+  pehdr.opthdrsz = 0;
+  pehdr.flags = 0;
+
+  /* Compute the size of the symbol table:
+  ** @feat.00 + nsections*2
+  ** + asm_start + nsym
+  ** + nrsym
+  */
+  nrsym = ctx->nrelocsym;
+  pehdr.nsyms = 1+PEOBJ_NSECTIONS*2 + 1+ctx->nsym + nrsym;
+#if LJ_TARGET_X64
+  pehdr.nsyms += 1;  /* Symbol for lj_err_unwind_win. */
+#endif
+
+  /* Write PE object header and all sections. */
+  owrite(ctx, &pehdr, sizeof(PEheader));
+  owrite(ctx, &pesect, sizeof(PEsection)*PEOBJ_NSECTIONS);
+
+  /* Write .text section. */
+  host_endian.u = 1;
+  if (host_endian.b != LJ_ENDIAN_SELECT(1, 0)) {
+    fprintf(stderr, "Error: different byte order for host and target\n");
+    exit(1);
+  }
+  owrite(ctx, ctx->code, ctx->codesz);
+  for (i = 0; i < ctx->nreloc; i++) {
+    PEreloc reloc;
+    reloc.vaddr = (uint32_t)ctx->reloc[i].ofs + PEOBJ_RELOC_OFS;
+    reloc.symidx = 1+2+ctx->reloc[i].sym;  /* Reloc syms are after .text sym. */
+    reloc.type = ctx->reloc[i].type ? PEOBJ_RELOC_REL32 : PEOBJ_RELOC_DIR32;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+  }
+
+#if LJ_TARGET_X64
+  { /* Write .pdata section. */
+    uint32_t fcofs = (uint32_t)ctx->sym[ctx->nsym-1].ofs;
+    uint32_t pdata[3];  /* Start of .text, end of .text and .xdata. */
+    PEreloc reloc;
+    pdata[0] = 0; pdata[1] = fcofs; pdata[2] = 0;
+    owrite(ctx, &pdata, sizeof(pdata));
+    pdata[0] = fcofs; pdata[1] = (uint32_t)ctx->codesz; pdata[2] = 20;
+    owrite(ctx, &pdata, sizeof(pdata));
+    reloc.vaddr = 0; reloc.symidx = 1+2+nrsym+2+2+1;
+    reloc.type = PEOBJ_RELOC_ADDR32NB;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+    reloc.vaddr = 4; reloc.symidx = 1+2+nrsym+2+2+1;
+    reloc.type = PEOBJ_RELOC_ADDR32NB;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+    reloc.vaddr = 8; reloc.symidx = 1+2+nrsym+2;
+    reloc.type = PEOBJ_RELOC_ADDR32NB;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+    reloc.vaddr = 12; reloc.symidx = 1+2+nrsym+2+2+1;
+    reloc.type = PEOBJ_RELOC_ADDR32NB;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+    reloc.vaddr = 16; reloc.symidx = 1+2+nrsym+2+2+1;
+    reloc.type = PEOBJ_RELOC_ADDR32NB;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+    reloc.vaddr = 20; reloc.symidx = 1+2+nrsym+2;
+    reloc.type = PEOBJ_RELOC_ADDR32NB;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+  }
+  { /* Write .xdata section. */
+    uint16_t xdata[8+2+6];
+    PEreloc reloc;
+    xdata[0] = 0x01|0x08|0x10;  /* Ver. 1, uhandler/ehandler, prolog size 0. */
+    xdata[1] = 0x0005;  /* Number of unwind codes, no frame pointer. */
+    xdata[2] = 0x4200;  /* Stack offset 4*8+8 = aword*5. */
+    xdata[3] = 0x3000;  /* Push rbx. */
+    xdata[4] = 0x6000;  /* Push rsi. */
+    xdata[5] = 0x7000;  /* Push rdi. */
+    xdata[6] = 0x5000;  /* Push rbp. */
+    xdata[7] = 0;  /* Alignment. */
+    xdata[8] = xdata[9] = 0;  /* Relocated address of exception handler. */
+    xdata[10] = 0x01;  /* Ver. 1, no handler, prolog size 0. */
+    xdata[11] = 0x1504;  /* Number of unwind codes, fp = rbp, fpofs = 16. */
+    xdata[12] = 0x0300;  /* set_fpreg. */
+    xdata[13] = 0x0200;  /* stack offset 0*8+8 = aword*1. */
+    xdata[14] = 0x3000;  /* Push rbx. */
+    xdata[15] = 0x5000;  /* Push rbp. */
+    owrite(ctx, &xdata, sizeof(xdata));
+    reloc.vaddr = 2*8; reloc.symidx = 1+2+nrsym+2+2;
+    reloc.type = PEOBJ_RELOC_ADDR32NB;
+    owrite(ctx, &reloc, PEOBJ_RELOC_SIZE);
+  }
+#elif LJ_TARGET_X86
+  /* Write .sxdata section. */
+  for (i = 0; i < nrsym; i++) {
+    if (!strcmp(ctx->relocsym[i], "_lj_err_unwind_win")) {
+      uint32_t symidx = 1+2+i;
+      owrite(ctx, &symidx, 4);
+      break;
+    }
+  }
+  if (i == nrsym) {
+    fprintf(stderr, "Error: extern lj_err_unwind_win not used\n");
+    exit(1);
+  }
+#endif
+
+  /* Write .rdata$Z section. */
+  owrite(ctx, ctx->dasm_ident, strlen(ctx->dasm_ident)+1);
+
+  /* Write symbol table. */
+  strtab = NULL;  /* 1st pass: collect string sizes. */
+  for (;;) {
+    strtabofs = 4;
+    /* Mark as SafeSEH compliant. */
+    emit_peobj_sym(ctx, "@feat.00", 1,
+		   PEOBJ_SECT_ABS, PEOBJ_TYPE_NULL, PEOBJ_SCL_STATIC);
+
+    emit_peobj_sym_sect(ctx, pesect, PEOBJ_SECT_TEXT);
+    for (i = 0; i < nrsym; i++)
+      emit_peobj_sym(ctx, ctx->relocsym[i], 0,
+		     PEOBJ_SECT_UNDEF, PEOBJ_TYPE_FUNC, PEOBJ_SCL_EXTERN);
+
+#if LJ_TARGET_X64
+    emit_peobj_sym_sect(ctx, pesect, PEOBJ_SECT_PDATA);
+    emit_peobj_sym_sect(ctx, pesect, PEOBJ_SECT_XDATA);
+    emit_peobj_sym(ctx, "lj_err_unwind_win", 0,
+		   PEOBJ_SECT_UNDEF, PEOBJ_TYPE_FUNC, PEOBJ_SCL_EXTERN);
+#elif LJ_TARGET_X86
+    emit_peobj_sym_sect(ctx, pesect, PEOBJ_SECT_SXDATA);
+#endif
+
+    emit_peobj_sym(ctx, ctx->beginsym, 0,
+		   PEOBJ_SECT_TEXT, PEOBJ_TYPE_NULL, PEOBJ_SCL_EXTERN);
+    for (i = 0; i < ctx->nsym; i++)
+      emit_peobj_sym(ctx, ctx->sym[i].name, (uint32_t)ctx->sym[i].ofs,
+		     PEOBJ_SECT_TEXT, PEOBJ_TYPE_FUNC, PEOBJ_SCL_EXTERN);
+
+    emit_peobj_sym_sect(ctx, pesect, PEOBJ_SECT_RDATA_Z);
+
+    if (strtab)
+      break;
+    /* 2nd pass: alloc strtab, write syms and copy strings. */
+    strtab = (char *)malloc(strtabofs);
+    *(uint32_t *)strtab = (uint32_t)strtabofs;
+  }
+
+  /* Write string table. */
+  owrite(ctx, strtab, strtabofs);
+}
+
+#else
+
+void emit_peobj(BuildCtx *ctx)
+{
+  UNUSED(ctx);
+  fprintf(stderr, "Error: no PE object support for this target\n");
+  exit(1);
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/host/genlibbc.lua b/libs/luajit-cmake/luajit/src/host/genlibbc.lua
new file mode 100644
index 0000000..ba18812
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/host/genlibbc.lua
@@ -0,0 +1,225 @@
+----------------------------------------------------------------------------
+-- Lua script to dump the bytecode of the library functions written in Lua.
+-- The resulting 'buildvm_libbc.h' is used for the build process of LuaJIT.
+----------------------------------------------------------------------------
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+
+local ffi = require("ffi")
+local bit = require("bit")
+local vmdef = require("jit.vmdef")
+local bcnames = vmdef.bcnames
+
+local format = string.format
+
+local isbe = (string.byte(string.dump(function() end), 5) % 2 == 1)
+
+local function usage(arg)
+  io.stderr:write("Usage: ", arg and arg[0] or "genlibbc",
+		  " [-o buildvm_libbc.h] lib_*.c\n")
+  os.exit(1)
+end
+
+local function parse_arg(arg)
+  local outfile = "-"
+  if not (arg and arg[1]) then
+    usage(arg)
+  end
+  if arg[1] == "-o" then
+    outfile = arg[2]
+    if not outfile then usage(arg) end
+    table.remove(arg, 1)
+    table.remove(arg, 1)
+  end
+  return outfile
+end
+
+local function read_files(names)
+  local src = ""
+  for _,name in ipairs(names) do
+    local fp = assert(io.open(name))
+    src = src .. fp:read("*a")
+    fp:close()
+  end
+  return src
+end
+
+local function transform_lua(code)
+  local fixup = {}
+  local n = -30000
+  code = string.gsub(code, "CHECK_(%w*)%((.-)%)", function(tp, var)
+    n = n + 1
+    fixup[n] = { "CHECK", tp }
+    return format("%s=%d", var, n)
+  end)
+  code = string.gsub(code, "PAIRS%((.-)%)", function(var)
+    fixup.PAIRS = true
+    return format("nil, %s, 0x4dp80", var)
+  end)
+  return "return "..code, fixup
+end
+
+local function read_uleb128(p)
+  local v = p[0]; p = p + 1
+  if v >= 128 then
+    local sh = 7; v = v - 128
+    repeat
+      local r = p[0]
+      v = v + bit.lshift(bit.band(r, 127), sh)
+      sh = sh + 7
+      p = p + 1
+    until r < 128
+  end
+  return p, v
+end
+
+-- ORDER LJ_T
+local name2itype = {
+  str = 5, func = 9, tab = 12, int = 14, num = 15
+}
+
+local BC, BCN = {}, {}
+for i=0,#bcnames/6-1 do
+  local name = bcnames:sub(i*6+1, i*6+6):gsub(" ", "")
+  BC[name] = i
+  BCN[i] = name
+end
+local xop, xra = isbe and 3 or 0, isbe and 2 or 1
+local xrc, xrb = isbe and 1 or 2, isbe and 0 or 3
+
+local function fixup_dump(dump, fixup)
+  local buf = ffi.new("uint8_t[?]", #dump+1, dump)
+  local p = buf+5
+  local n, sizebc
+  p, n = read_uleb128(p)
+  local start = p
+  p = p + 4
+  p = read_uleb128(p)
+  p = read_uleb128(p)
+  p, sizebc = read_uleb128(p)
+  local startbc = tonumber(p - start)
+  local rawtab = {}
+  for i=0,sizebc-1 do
+    local op = p[xop]
+    if op == BC.KSHORT then
+      local rd = p[xrc] + 256*p[xrb]
+      rd = bit.arshift(bit.lshift(rd, 16), 16)
+      local f = fixup[rd]
+      if f then
+	if f[1] == "CHECK" then
+	  local tp = f[2]
+	  if tp == "tab" then rawtab[p[xra]] = true end
+	  p[xop] = tp == "num" and BC.ISNUM or BC.ISTYPE
+	  p[xrb] = 0
+	  p[xrc] = name2itype[tp]
+	else
+	  error("unhandled fixup type: "..f[1])
+	end
+      end
+    elseif op == BC.TGETV then
+      if rawtab[p[xrb]] then
+	p[xop] = BC.TGETR
+      end
+    elseif op == BC.TSETV then
+      if rawtab[p[xrb]] then
+	p[xop] = BC.TSETR
+      end
+    elseif op == BC.ITERC then
+      if fixup.PAIRS then
+	p[xop] = BC.ITERN
+      end
+    end
+    p = p + 4
+  end
+  local ndump = ffi.string(start, n)
+  -- Fixup hi-part of 0x4dp80 to LJ_KEYINDEX.
+  ndump = ndump:gsub("\x80\x80\xcd\xaa\x04", "\xff\xff\xf9\xff\x0f")
+  return { dump = ndump, startbc = startbc, sizebc = sizebc }
+end
+
+local function find_defs(src)
+  local defs = {}
+  for name, code in string.gmatch(src, "LJLIB_LUA%(([^)]*)%)%s*/%*(.-)%*/") do
+    local env = {}
+    local tcode, fixup = transform_lua(code)
+    local func = assert(load(tcode, "", nil, env))()
+    defs[name] = fixup_dump(string.dump(func, true), fixup)
+    defs[#defs+1] = name
+  end
+  return defs
+end
+
+local function gen_header(defs)
+  local t = {}
+  local function w(x) t[#t+1] = x end
+  w("/* This is a generated file. DO NOT EDIT! */\n\n")
+  w("static const int libbc_endian = ") w(isbe and 1 or 0) w(";\n\n")
+  local s, sb = "", ""
+  for i,name in ipairs(defs) do
+    local d = defs[name]
+    s = s .. d.dump
+    sb = sb .. string.char(i) .. ("\0"):rep(d.startbc - 1)
+	    .. (isbe and "\0\0\0\255" or "\255\0\0\0"):rep(d.sizebc)
+	    .. ("\0"):rep(#d.dump - d.startbc - d.sizebc*4)
+  end
+  w("static const uint8_t libbc_code[] = {\n")
+  local n = 0
+  for i=1,#s do
+    local x = string.byte(s, i)
+    local xb = string.byte(sb, i)
+    if xb == 255 then
+      local name = BCN[x]
+      local m = #name + 4
+      if n + m > 78 then n = 0; w("\n") end
+      n = n + m
+      w("BC_"); w(name)
+    else
+      local m = x < 10 and 2 or (x < 100 and 3 or 4)
+      if xb == 0 then
+	if n + m > 78 then n = 0; w("\n") end
+      else
+	local name = defs[xb]:gsub("_", ".")
+	if n ~= 0 then w("\n") end
+	w("/* "); w(name); w(" */ ")
+	n = #name + 7
+      end
+      n = n + m
+      w(x)
+    end
+    w(",")
+  end
+  w("\n0\n};\n\n")
+  w("static const struct { const char *name; int ofs; } libbc_map[] = {\n")
+  local m = 0
+  for _,name in ipairs(defs) do
+    w('{"'); w(name); w('",'); w(m) w('},\n')
+    m = m + #defs[name].dump
+  end
+  w("{NULL,"); w(m); w("}\n};\n\n")
+  return table.concat(t)
+end
+
+local function write_file(name, data)
+  if name == "-" then
+    assert(io.write(data))
+    assert(io.flush())
+  else
+    local fp = io.open(name)
+    if fp then
+      local old = fp:read("*a")
+      fp:close()
+      if data == old then return end
+    end
+    fp = assert(io.open(name, "w"))
+    assert(fp:write(data))
+    assert(fp:close())
+  end
+end
+
+local outfile = parse_arg(arg)
+local src = read_files(arg)
+local defs = find_defs(src)
+local hdr = gen_header(defs)
+write_file(outfile, hdr)
+
diff --git a/libs/luajit-cmake/luajit/src/host/genminilua.lua b/libs/luajit-cmake/luajit/src/host/genminilua.lua
new file mode 100644
index 0000000..e8e86c5
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/host/genminilua.lua
@@ -0,0 +1,436 @@
+----------------------------------------------------------------------------
+-- Lua script to generate a customized, minified version of Lua.
+-- The resulting 'minilua' is used for the build process of LuaJIT.
+----------------------------------------------------------------------------
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+
+local sub, match, gsub = string.sub, string.match, string.gsub
+
+local LUA_VERSION = "5.1.5"
+local LUA_SOURCE
+
+local function usage()
+  io.stderr:write("Usage: ", arg and arg[0] or "genminilua",
+		  " lua-", LUA_VERSION, "-source-dir\n")
+  os.exit(1)
+end
+
+local function find_sources()
+  LUA_SOURCE = arg and arg[1]
+  if not LUA_SOURCE then usage() end
+  if sub(LUA_SOURCE, -1) ~= "/" then LUA_SOURCE = LUA_SOURCE.."/" end
+  local fp = io.open(LUA_SOURCE .. "lua.h")
+  if not fp then
+    LUA_SOURCE = LUA_SOURCE.."src/"
+    fp = io.open(LUA_SOURCE .. "lua.h")
+    if not fp then usage() end
+  end
+  local all = fp:read("*a")
+  fp:close()
+  if not match(all, 'LUA_RELEASE%s*"Lua '..LUA_VERSION..'"') then
+    io.stderr:write("Error: version mismatch\n")
+    usage()
+  end
+end
+
+local LUA_FILES = {
+"lmem.c", "lobject.c", "ltm.c", "lfunc.c", "ldo.c", "lstring.c", "ltable.c",
+"lgc.c", "lstate.c", "ldebug.c", "lzio.c", "lopcodes.c",
+"llex.c", "lcode.c", "lparser.c", "lvm.c", "lapi.c", "lauxlib.c",
+"lbaselib.c", "ltablib.c", "liolib.c", "loslib.c", "lstrlib.c", "linit.c",
+}
+
+local REMOVE_LIB = {}
+gsub([[
+collectgarbage dofile gcinfo getfenv getmetatable load print rawequal rawset
+select tostring xpcall
+foreach foreachi getn maxn setn
+popen tmpfile seek setvbuf __tostring
+clock date difftime execute getenv rename setlocale time tmpname
+dump gfind len reverse
+LUA_LOADLIBNAME LUA_MATHLIBNAME LUA_DBLIBNAME
+]], "%S+", function(name)
+  REMOVE_LIB[name] = true
+end)
+
+local REMOVE_EXTINC = { ["<assert.h>"] = true, ["<locale.h>"] = true, }
+
+local CUSTOM_MAIN = [[
+typedef unsigned int UB;
+static UB barg(lua_State *L,int idx){
+union{lua_Number n;U64 b;}bn;
+bn.n=lua_tonumber(L,idx)+6755399441055744.0;
+if (bn.n==0.0&&!lua_isnumber(L,idx))luaL_typerror(L,idx,"number");
+return(UB)bn.b;
+}
+#define BRET(b) lua_pushnumber(L,(lua_Number)(int)(b));return 1;
+static int tobit(lua_State *L){
+BRET(barg(L,1))}
+static int bnot(lua_State *L){
+BRET(~barg(L,1))}
+static int band(lua_State *L){
+int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b&=barg(L,i);BRET(b)}
+static int bor(lua_State *L){
+int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b|=barg(L,i);BRET(b)}
+static int bxor(lua_State *L){
+int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b^=barg(L,i);BRET(b)}
+static int lshift(lua_State *L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET(b<<n)}
+static int rshift(lua_State *L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET(b>>n)}
+static int arshift(lua_State *L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET((int)b>>n)}
+static int rol(lua_State *L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET((b<<n)|(b>>(32-n)))}
+static int ror(lua_State *L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET((b>>n)|(b<<(32-n)))}
+static int bswap(lua_State *L){
+UB b=barg(L,1);b=(b>>24)|((b>>8)&0xff00)|((b&0xff00)<<8)|(b<<24);BRET(b)}
+static int tohex(lua_State *L){
+UB b=barg(L,1);
+int n=lua_isnone(L,2)?8:(int)barg(L,2);
+const char *hexdigits="0123456789abcdef";
+char buf[8];
+int i;
+if(n<0){n=-n;hexdigits="0123456789ABCDEF";}
+if(n>8)n=8;
+for(i=(int)n;--i>=0;){buf[i]=hexdigits[b&15];b>>=4;}
+lua_pushlstring(L,buf,(size_t)n);
+return 1;
+}
+static const struct luaL_Reg bitlib[] = {
+{"tobit",tobit},
+{"bnot",bnot},
+{"band",band},
+{"bor",bor},
+{"bxor",bxor},
+{"lshift",lshift},
+{"rshift",rshift},
+{"arshift",arshift},
+{"rol",rol},
+{"ror",ror},
+{"bswap",bswap},
+{"tohex",tohex},
+{NULL,NULL}
+};
+int main(int argc, char **argv){
+  lua_State *L = luaL_newstate();
+  int i;
+  luaL_openlibs(L);
+  luaL_register(L, "bit", bitlib);
+  if (argc < 2) return sizeof(void *);
+  lua_createtable(L, 0, 1);
+  lua_pushstring(L, argv[1]);
+  lua_rawseti(L, -2, 0);
+  lua_setglobal(L, "arg");
+  if (luaL_loadfile(L, argv[1]))
+    goto err;
+  for (i = 2; i < argc; i++)
+    lua_pushstring(L, argv[i]);
+  if (lua_pcall(L, argc - 2, 0, 0)) {
+  err:
+    fprintf(stderr, "Error: %s\n", lua_tostring(L, -1));
+    return 1;
+  }
+  lua_close(L);
+  return 0;
+}
+]]
+
+local function read_sources()
+  local t = {}
+  for i, name in ipairs(LUA_FILES) do
+    local fp = assert(io.open(LUA_SOURCE..name, "r"))
+    t[i] = fp:read("*a")
+    assert(fp:close())
+  end
+  t[#t+1] = CUSTOM_MAIN
+  return table.concat(t)
+end
+
+local includes = {}
+
+local function merge_includes(src)
+  return gsub(src, '#include%s*"([^"]*)"%s*\n', function(name)
+    if includes[name] then return "" end
+    includes[name] = true
+    local fp = assert(io.open(LUA_SOURCE..name, "r"))
+    local inc = fp:read("*a")
+    assert(fp:close())
+    inc = gsub(inc, "#ifndef%s+%w+_h\n#define%s+%w+_h\n", "")
+    inc = gsub(inc, "#endif%s*$", "")
+    return merge_includes(inc)
+  end)
+end
+
+local function get_license(src)
+  return match(src, "/%*+\n%* Copyright %(.-%*/\n")
+end
+
+local function fold_lines(src)
+  return gsub(src, "\\\n", " ")
+end
+
+local strings = {}
+
+local function save_str(str)
+  local n = #strings+1
+  strings[n] = str
+  return "\1"..n.."\2"
+end
+
+local function save_strings(src)
+  src = gsub(src, '"[^"\n]*"', save_str)
+  return gsub(src, "'[^'\n]*'", save_str)
+end
+
+local function restore_strings(src)
+  return gsub(src, "\1(%d+)\2", function(numstr)
+    return strings[tonumber(numstr)]
+  end)
+end
+
+local function def_istrue(def)
+  return def == "INT_MAX > 2147483640L" or
+	 def == "LUAI_BITSINT >= 32" or
+	 def == "SIZE_Bx < LUAI_BITSINT-1" or
+	 def == "cast" or
+	 def == "defined(LUA_CORE)" or
+	 def == "MINSTRTABSIZE" or
+	 def == "LUA_MINBUFFER" or
+	 def == "HARDSTACKTESTS" or
+	 def == "UNUSED"
+end
+
+local head, defs = {[[
+#ifdef _MSC_VER
+typedef unsigned __int64 U64;
+#else
+typedef unsigned long long U64;
+#endif
+int _CRT_glob = 0;
+]]}, {}
+
+local function preprocess(src)
+  local t = { match(src, "^(.-)#") }
+  local lvl, on, oldon = 0, true, {}
+  for pp, def, txt in string.gmatch(src, "#(%w+) *([^\n]*)\n([^#]*)") do
+    if pp == "if" or pp == "ifdef" or pp == "ifndef" then
+      lvl = lvl + 1
+      oldon[lvl] = on
+      on = def_istrue(def)
+    elseif pp == "else" then
+      if oldon[lvl] then
+	if on == false then on = true else on = false end
+      end
+    elseif pp == "elif" then
+      if oldon[lvl] then
+	on = def_istrue(def)
+      end
+    elseif pp == "endif" then
+      on = oldon[lvl]
+      lvl = lvl - 1
+    elseif on then
+      if pp == "include" then
+	if not head[def] and not REMOVE_EXTINC[def] then
+	  head[def] = true
+	  head[#head+1] = "#include "..def.."\n"
+	end
+      elseif pp == "define" then
+	local k, sp, v = match(def, "([%w_]+)(%s*)(.*)")
+	if k and not (sp == "" and sub(v, 1, 1) == "(") then
+	  defs[k] = gsub(v, "%a[%w_]*", function(tok)
+	    return defs[tok] or tok
+	  end)
+	else
+	  t[#t+1] = "#define "..def.."\n"
+	end
+      elseif pp ~= "undef" then
+	error("unexpected directive: "..pp.." "..def)
+      end
+    end
+    if on then t[#t+1] = txt end
+  end
+  return gsub(table.concat(t), "%a[%w_]*", function(tok)
+    return defs[tok] or tok
+  end)
+end
+
+local function merge_header(src, license)
+  local hdr = string.format([[
+/* This is a heavily customized and minimized copy of Lua %s. */
+/* It's only used to build LuaJIT. It does NOT have all standard functions! */
+]], LUA_VERSION)
+  return hdr..license..table.concat(head)..src
+end
+
+local function strip_unused1(src)
+  return gsub(src, '(  {"?([%w_]+)"?,%s+%a[%w_]*},\n)', function(line, func)
+    return REMOVE_LIB[func] and "" or line
+  end)
+end
+
+local function strip_unused2(src)
+  return gsub(src, "Symbolic Execution.-}=", "")
+end
+
+local function strip_unused3(src)
+  src = gsub(src, "extern", "static")
+  src = gsub(src, "\nstatic([^\n]-)%(([^)]*)%)%(", "\nstatic%1 %2(")
+  src = gsub(src, "#define lua_assert[^\n]*\n", "")
+  src = gsub(src, "lua_assert%b();?", "")
+  src = gsub(src, "default:\n}", "default:;\n}")
+  src = gsub(src, "lua_lock%b();", "")
+  src = gsub(src, "lua_unlock%b();", "")
+  src = gsub(src, "luai_threadyield%b();", "")
+  src = gsub(src, "luai_userstateopen%b();", "{}")
+  src = gsub(src, "luai_userstate%w+%b();", "")
+  src = gsub(src, "%(%(c==.*luaY_parser%)", "luaY_parser")
+  src = gsub(src, "trydecpoint%(ls,seminfo%)",
+		  "luaX_lexerror(ls,\"malformed number\",TK_NUMBER)")
+  src = gsub(src, "int c=luaZ_lookahead%b();", "")
+  src = gsub(src, "luaL_register%(L,[^,]*,co_funcs%);\nreturn 2;",
+		  "return 1;")
+  src = gsub(src, "getfuncname%b():", "NULL:")
+  src = gsub(src, "getobjname%b():", "NULL:")
+  src = gsub(src, "if%([^\n]*hookmask[^\n]*%)\n[^\n]*\n", "")
+  src = gsub(src, "if%([^\n]*hookmask[^\n]*%)%b{}\n", "")
+  src = gsub(src, "if%([^\n]*hookmask[^\n]*&&\n[^\n]*%b{}\n", "")
+  src = gsub(src, "(twoto%b()%()", "%1(size_t)")
+  src = gsub(src, "i<sizenode", "i<(int)sizenode")
+  src = gsub(src, "cast%(unsigned int,key%-1%)", "cast(unsigned int,key)-1")
+  return gsub(src, "\n\n+", "\n")
+end
+
+local function strip_comments(src)
+  return gsub(src, "/%*.-%*/", " ")
+end
+
+local function strip_whitespace(src)
+  src = gsub(src, "^%s+", "")
+  src = gsub(src, "%s*\n%s*", "\n")
+  src = gsub(src, "[ \t]+", " ")
+  src = gsub(src, "(%W) ", "%1")
+  return gsub(src, " (%W)", "%1")
+end
+
+local function rename_tokens1(src)
+  src = gsub(src, "getline", "getline_")
+  src = gsub(src, "struct ([%w_]+)", "ZX%1")
+  return gsub(src, "union ([%w_]+)", "ZY%1")
+end
+
+local function rename_tokens2(src)
+  src = gsub(src, "ZX([%w_]+)", "struct %1")
+  return gsub(src, "ZY([%w_]+)", "union %1")
+end
+
+local function fix_bugs_and_warnings(src)
+ src = gsub(src, "(luaD_checkstack%(L,p%->maxstacksize)%)", "%1+p->numparams)")
+ src = gsub(src, "if%(sep==%-1%)(return'%[';)\nelse (luaX_lexerror%b();)", "if (sep!=-1)%2\n%1")
+ return gsub(src, "(default:{\nNode%*n=mainposition)", "/*fallthrough*/\n%1")
+end
+
+local function func_gather(src)
+  local nodes, list = {}, {}
+  local pos, len = 1, #src
+  while pos < len do
+    local d, w = match(src, "^(#define ([%w_]+)[^\n]*\n)", pos)
+    if d then
+      local n = #list+1
+      list[n] = d
+      nodes[w] = n
+    else
+      local s
+      d, w, s = match(src, "^(([%w_]+)[^\n]*([{;])\n)", pos)
+      if not d then
+	d, w, s = match(src, "^(([%w_]+)[^(]*%b()([{;])\n)", pos)
+	if not d then d = match(src, "^[^\n]*\n", pos) end
+      end
+      if s == "{" then
+	d = d..sub(match(src, "^%b{}[^;\n]*;?\n", pos+#d-2), 3)
+	if sub(d, -2) == "{\n" then
+	  d = d..sub(match(src, "^%b{}[^;\n]*;?\n", pos+#d-2), 3)
+	end
+      end
+      local k, v = nil, d
+      if w == "typedef" then
+	if match(d, "^typedef enum") then
+	  head[#head+1] = d
+	else
+	  k = match(d, "([%w_]+);\n$")
+	  if not k then k = match(d, "^.-%(.-([%w_]+)%)%(") end
+	end
+      elseif w == "enum" then
+	head[#head+1] = v
+      elseif w ~= nil then
+	k = match(d, "^[^\n]-([%w_]+)[(%[=]")
+	if k then
+	  if w ~= "static" and k ~= "main" then v = "static "..d end
+	else
+	  k = w
+	end
+      end
+      if w and k then
+	local o = nodes[k]
+	if o then nodes["*"..k] = o end
+	local n = #list+1
+	list[n] = v
+	nodes[k] = n
+      end
+    end
+    pos = pos + #d
+  end
+  return nodes, list
+end
+
+local function func_visit(nodes, list, used, n)
+  local i = nodes[n]
+  for m in string.gmatch(list[i], "[%w_]+") do
+    if nodes[m] then
+      local j = used[m]
+      if not j then
+	used[m] = i
+	func_visit(nodes, list, used, m)
+      elseif i < j then
+	used[m] = i
+      end
+    end
+  end
+end
+
+local function func_collect(src)
+  local nodes, list = func_gather(src)
+  local used = {}
+  func_visit(nodes, list, used, "main")
+  for n,i in pairs(nodes) do
+    local j = used[n]
+    if j and j < i then used["*"..n] = j end
+  end
+  for n,i in pairs(nodes) do
+    if not used[n] then list[i] = "" end
+  end
+  return table.concat(list)
+end
+
+find_sources()
+local src = read_sources()
+src = merge_includes(src)
+local license = get_license(src)
+src = fold_lines(src)
+src = strip_unused1(src)
+src = save_strings(src)
+src = strip_unused2(src)
+src = strip_comments(src)
+src = preprocess(src)
+src = strip_whitespace(src)
+src = strip_unused3(src)
+src = rename_tokens1(src)
+src = func_collect(src)
+src = rename_tokens2(src)
+src = restore_strings(src)
+src = fix_bugs_and_warnings(src)
+src = merge_header(src, license)
+io.write(src)
diff --git a/libs/luajit-cmake/luajit/src/host/minilua.c b/libs/luajit-cmake/luajit/src/host/minilua.c
new file mode 100644
index 0000000..76f32ae
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/host/minilua.c
@@ -0,0 +1,7771 @@
+/* This is a heavily customized and minimized copy of Lua 5.1.5. */
+/* It's only used to build LuaJIT. It does NOT have all standard functions! */
+/******************************************************************************
+* Copyright (C) 1994-2012 Lua.org, PUC-Rio.  All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining
+* a copy of this software and associated documentation files (the
+* "Software"), to deal in the Software without restriction, including
+* without limitation the rights to use, copy, modify, merge, publish,
+* distribute, sublicense, and/or sell copies of the Software, and to
+* permit persons to whom the Software is furnished to do so, subject to
+* the following conditions:
+*
+* The above copyright notice and this permission notice shall be
+* included in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+******************************************************************************/
+#ifdef _MSC_VER
+typedef unsigned __int64 U64;
+#else
+typedef unsigned long long U64;
+#endif
+int _CRT_glob = 0;
+#include <stddef.h>
+#include <stdarg.h>
+#include <limits.h>
+#include <math.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <setjmp.h>
+#include <errno.h>
+#include <time.h>
+typedef enum{
+TM_INDEX,
+TM_NEWINDEX,
+TM_GC,
+TM_MODE,
+TM_EQ,
+TM_ADD,
+TM_SUB,
+TM_MUL,
+TM_DIV,
+TM_MOD,
+TM_POW,
+TM_UNM,
+TM_LEN,
+TM_LT,
+TM_LE,
+TM_CONCAT,
+TM_CALL,
+TM_N
+}TMS;
+enum OpMode{iABC,iABx,iAsBx};
+typedef enum{
+OP_MOVE,
+OP_LOADK,
+OP_LOADBOOL,
+OP_LOADNIL,
+OP_GETUPVAL,
+OP_GETGLOBAL,
+OP_GETTABLE,
+OP_SETGLOBAL,
+OP_SETUPVAL,
+OP_SETTABLE,
+OP_NEWTABLE,
+OP_SELF,
+OP_ADD,
+OP_SUB,
+OP_MUL,
+OP_DIV,
+OP_MOD,
+OP_POW,
+OP_UNM,
+OP_NOT,
+OP_LEN,
+OP_CONCAT,
+OP_JMP,
+OP_EQ,
+OP_LT,
+OP_LE,
+OP_TEST,
+OP_TESTSET,
+OP_CALL,
+OP_TAILCALL,
+OP_RETURN,
+OP_FORLOOP,
+OP_FORPREP,
+OP_TFORLOOP,
+OP_SETLIST,
+OP_CLOSE,
+OP_CLOSURE,
+OP_VARARG
+}OpCode;
+enum OpArgMask{
+OpArgN,
+OpArgU,
+OpArgR,
+OpArgK
+};
+typedef enum{
+VVOID,
+VNIL,
+VTRUE,
+VFALSE,
+VK,
+VKNUM,
+VLOCAL,
+VUPVAL,
+VGLOBAL,
+VINDEXED,
+VJMP,
+VRELOCABLE,
+VNONRELOC,
+VCALL,
+VVARARG
+}expkind;
+enum RESERVED{
+TK_AND=257,TK_BREAK,
+TK_DO,TK_ELSE,TK_ELSEIF,TK_END,TK_FALSE,TK_FOR,TK_FUNCTION,
+TK_IF,TK_IN,TK_LOCAL,TK_NIL,TK_NOT,TK_OR,TK_REPEAT,
+TK_RETURN,TK_THEN,TK_TRUE,TK_UNTIL,TK_WHILE,
+TK_CONCAT,TK_DOTS,TK_EQ,TK_GE,TK_LE,TK_NE,TK_NUMBER,
+TK_NAME,TK_STRING,TK_EOS
+};
+typedef enum BinOpr{
+OPR_ADD,OPR_SUB,OPR_MUL,OPR_DIV,OPR_MOD,OPR_POW,
+OPR_CONCAT,
+OPR_NE,OPR_EQ,
+OPR_LT,OPR_LE,OPR_GT,OPR_GE,
+OPR_AND,OPR_OR,
+OPR_NOBINOPR
+}BinOpr;
+typedef enum UnOpr{OPR_MINUS,OPR_NOT,OPR_LEN,OPR_NOUNOPR}UnOpr;
+#define LUA_QL(x)"'"x"'"
+#define luai_apicheck(L,o){(void)L;}
+#define lua_number2str(s,n)sprintf((s),"%.14g",(n))
+#define lua_str2number(s,p)strtod((s),(p))
+#define luai_numadd(a,b)((a)+(b))
+#define luai_numsub(a,b)((a)-(b))
+#define luai_nummul(a,b)((a)*(b))
+#define luai_numdiv(a,b)((a)/(b))
+#define luai_nummod(a,b)((a)-floor((a)/(b))*(b))
+#define luai_numpow(a,b)(pow(a,b))
+#define luai_numunm(a)(-(a))
+#define luai_numeq(a,b)((a)==(b))
+#define luai_numlt(a,b)((a)<(b))
+#define luai_numle(a,b)((a)<=(b))
+#define luai_numisnan(a)(!luai_numeq((a),(a)))
+#define lua_number2int(i,d)((i)=(int)(d))
+#define lua_number2integer(i,d)((i)=(lua_Integer)(d))
+#define LUAI_THROW(L,c)longjmp((c)->b,1)
+#define LUAI_TRY(L,c,a)if(setjmp((c)->b)==0){a}
+#define lua_pclose(L,file)((void)((void)L,file),0)
+#define lua_upvalueindex(i)((-10002)-(i))
+typedef struct lua_State lua_State;
+typedef int(*lua_CFunction)(lua_State*L);
+typedef const char*(*lua_Reader)(lua_State*L,void*ud,size_t*sz);
+typedef void*(*lua_Alloc)(void*ud,void*ptr,size_t osize,size_t nsize);
+typedef double lua_Number;
+typedef ptrdiff_t lua_Integer;
+static void lua_settop(lua_State*L,int idx);
+static int lua_type(lua_State*L,int idx);
+static const char* lua_tolstring(lua_State*L,int idx,size_t*len);
+static size_t lua_objlen(lua_State*L,int idx);
+static void lua_pushlstring(lua_State*L,const char*s,size_t l);
+static void lua_pushcclosure(lua_State*L,lua_CFunction fn,int n);
+static void lua_createtable(lua_State*L,int narr,int nrec);
+static void lua_setfield(lua_State*L,int idx,const char*k);
+#define lua_pop(L,n)lua_settop(L,-(n)-1)
+#define lua_newtable(L)lua_createtable(L,0,0)
+#define lua_pushcfunction(L,f)lua_pushcclosure(L,(f),0)
+#define lua_strlen(L,i)lua_objlen(L,(i))
+#define lua_isfunction(L,n)(lua_type(L,(n))==6)
+#define lua_istable(L,n)(lua_type(L,(n))==5)
+#define lua_isnil(L,n)(lua_type(L,(n))==0)
+#define lua_isboolean(L,n)(lua_type(L,(n))==1)
+#define lua_isnone(L,n)(lua_type(L,(n))==(-1))
+#define lua_isnoneornil(L,n)(lua_type(L,(n))<=0)
+#define lua_pushliteral(L,s)lua_pushlstring(L,""s,(sizeof(s)/sizeof(char))-1)
+#define lua_setglobal(L,s)lua_setfield(L,(-10002),(s))
+#define lua_tostring(L,i)lua_tolstring(L,(i),NULL)
+typedef struct lua_Debug lua_Debug;
+typedef void(*lua_Hook)(lua_State*L,lua_Debug*ar);
+struct lua_Debug{
+int event;
+const char*name;
+const char*namewhat;
+const char*what;
+const char*source;
+int currentline;
+int nups;
+int linedefined;
+int lastlinedefined;
+char short_src[60];
+int i_ci;
+};
+typedef unsigned int lu_int32;
+typedef size_t lu_mem;
+typedef ptrdiff_t l_mem;
+typedef unsigned char lu_byte;
+#define IntPoint(p)((unsigned int)(lu_mem)(p))
+typedef union{double u;void*s;long l;}L_Umaxalign;
+typedef double l_uacNumber;
+#define check_exp(c,e)(e)
+#define UNUSED(x)((void)(x))
+#define cast(t,exp)((t)(exp))
+#define cast_byte(i)cast(lu_byte,(i))
+#define cast_num(i)cast(lua_Number,(i))
+#define cast_int(i)cast(int,(i))
+typedef lu_int32 Instruction;
+#define condhardstacktests(x)((void)0)
+typedef union GCObject GCObject;
+typedef struct GCheader{
+GCObject*next;lu_byte tt;lu_byte marked;
+}GCheader;
+typedef union{
+GCObject*gc;
+void*p;
+lua_Number n;
+int b;
+}Value;
+typedef struct lua_TValue{
+Value value;int tt;
+}TValue;
+#define ttisnil(o)(ttype(o)==0)
+#define ttisnumber(o)(ttype(o)==3)
+#define ttisstring(o)(ttype(o)==4)
+#define ttistable(o)(ttype(o)==5)
+#define ttisfunction(o)(ttype(o)==6)
+#define ttisboolean(o)(ttype(o)==1)
+#define ttisuserdata(o)(ttype(o)==7)
+#define ttisthread(o)(ttype(o)==8)
+#define ttislightuserdata(o)(ttype(o)==2)
+#define ttype(o)((o)->tt)
+#define gcvalue(o)check_exp(iscollectable(o),(o)->value.gc)
+#define pvalue(o)check_exp(ttislightuserdata(o),(o)->value.p)
+#define nvalue(o)check_exp(ttisnumber(o),(o)->value.n)
+#define rawtsvalue(o)check_exp(ttisstring(o),&(o)->value.gc->ts)
+#define tsvalue(o)(&rawtsvalue(o)->tsv)
+#define rawuvalue(o)check_exp(ttisuserdata(o),&(o)->value.gc->u)
+#define uvalue(o)(&rawuvalue(o)->uv)
+#define clvalue(o)check_exp(ttisfunction(o),&(o)->value.gc->cl)
+#define hvalue(o)check_exp(ttistable(o),&(o)->value.gc->h)
+#define bvalue(o)check_exp(ttisboolean(o),(o)->value.b)
+#define thvalue(o)check_exp(ttisthread(o),&(o)->value.gc->th)
+#define l_isfalse(o)(ttisnil(o)||(ttisboolean(o)&&bvalue(o)==0))
+#define checkconsistency(obj)
+#define checkliveness(g,obj)
+#define setnilvalue(obj)((obj)->tt=0)
+#define setnvalue(obj,x){TValue*i_o=(obj);i_o->value.n=(x);i_o->tt=3;}
+#define setbvalue(obj,x){TValue*i_o=(obj);i_o->value.b=(x);i_o->tt=1;}
+#define setsvalue(L,obj,x){TValue*i_o=(obj);i_o->value.gc=cast(GCObject*,(x));i_o->tt=4;checkliveness(G(L),i_o);}
+#define setuvalue(L,obj,x){TValue*i_o=(obj);i_o->value.gc=cast(GCObject*,(x));i_o->tt=7;checkliveness(G(L),i_o);}
+#define setthvalue(L,obj,x){TValue*i_o=(obj);i_o->value.gc=cast(GCObject*,(x));i_o->tt=8;checkliveness(G(L),i_o);}
+#define setclvalue(L,obj,x){TValue*i_o=(obj);i_o->value.gc=cast(GCObject*,(x));i_o->tt=6;checkliveness(G(L),i_o);}
+#define sethvalue(L,obj,x){TValue*i_o=(obj);i_o->value.gc=cast(GCObject*,(x));i_o->tt=5;checkliveness(G(L),i_o);}
+#define setptvalue(L,obj,x){TValue*i_o=(obj);i_o->value.gc=cast(GCObject*,(x));i_o->tt=(8+1);checkliveness(G(L),i_o);}
+#define setobj(L,obj1,obj2){const TValue*o2=(obj2);TValue*o1=(obj1);o1->value=o2->value;o1->tt=o2->tt;checkliveness(G(L),o1);}
+#define setttype(obj,tt)(ttype(obj)=(tt))
+#define iscollectable(o)(ttype(o)>=4)
+typedef TValue*StkId;
+typedef union TString{
+L_Umaxalign dummy;
+struct{
+GCObject*next;lu_byte tt;lu_byte marked;
+lu_byte reserved;
+unsigned int hash;
+size_t len;
+}tsv;
+}TString;
+#define getstr(ts)cast(const char*,(ts)+1)
+#define svalue(o)getstr(rawtsvalue(o))
+typedef union Udata{
+L_Umaxalign dummy;
+struct{
+GCObject*next;lu_byte tt;lu_byte marked;
+struct Table*metatable;
+struct Table*env;
+size_t len;
+}uv;
+}Udata;
+typedef struct Proto{
+GCObject*next;lu_byte tt;lu_byte marked;
+TValue*k;
+Instruction*code;
+struct Proto**p;
+int*lineinfo;
+struct LocVar*locvars;
+TString**upvalues;
+TString*source;
+int sizeupvalues;
+int sizek;
+int sizecode;
+int sizelineinfo;
+int sizep;
+int sizelocvars;
+int linedefined;
+int lastlinedefined;
+GCObject*gclist;
+lu_byte nups;
+lu_byte numparams;
+lu_byte is_vararg;
+lu_byte maxstacksize;
+}Proto;
+typedef struct LocVar{
+TString*varname;
+int startpc;
+int endpc;
+}LocVar;
+typedef struct UpVal{
+GCObject*next;lu_byte tt;lu_byte marked;
+TValue*v;
+union{
+TValue value;
+struct{
+struct UpVal*prev;
+struct UpVal*next;
+}l;
+}u;
+}UpVal;
+typedef struct CClosure{
+GCObject*next;lu_byte tt;lu_byte marked;lu_byte isC;lu_byte nupvalues;GCObject*gclist;struct Table*env;
+lua_CFunction f;
+TValue upvalue[1];
+}CClosure;
+typedef struct LClosure{
+GCObject*next;lu_byte tt;lu_byte marked;lu_byte isC;lu_byte nupvalues;GCObject*gclist;struct Table*env;
+struct Proto*p;
+UpVal*upvals[1];
+}LClosure;
+typedef union Closure{
+CClosure c;
+LClosure l;
+}Closure;
+#define iscfunction(o)(ttype(o)==6&&clvalue(o)->c.isC)
+typedef union TKey{
+struct{
+Value value;int tt;
+struct Node*next;
+}nk;
+TValue tvk;
+}TKey;
+typedef struct Node{
+TValue i_val;
+TKey i_key;
+}Node;
+typedef struct Table{
+GCObject*next;lu_byte tt;lu_byte marked;
+lu_byte flags;
+lu_byte lsizenode;
+struct Table*metatable;
+TValue*array;
+Node*node;
+Node*lastfree;
+GCObject*gclist;
+int sizearray;
+}Table;
+#define lmod(s,size)(check_exp((size&(size-1))==0,(cast(int,(s)&((size)-1)))))
+#define twoto(x)((size_t)1<<(x))
+#define sizenode(t)(twoto((t)->lsizenode))
+static const TValue luaO_nilobject_;
+#define ceillog2(x)(luaO_log2((x)-1)+1)
+static int luaO_log2(unsigned int x);
+#define gfasttm(g,et,e)((et)==NULL?NULL:((et)->flags&(1u<<(e)))?NULL:luaT_gettm(et,e,(g)->tmname[e]))
+#define fasttm(l,et,e)gfasttm(G(l),et,e)
+static const TValue*luaT_gettm(Table*events,TMS event,TString*ename);
+#define luaM_reallocv(L,b,on,n,e)((cast(size_t,(n)+1)<=((size_t)(~(size_t)0)-2)/(e))?luaM_realloc_(L,(b),(on)*(e),(n)*(e)):luaM_toobig(L))
+#define luaM_freemem(L,b,s)luaM_realloc_(L,(b),(s),0)
+#define luaM_free(L,b)luaM_realloc_(L,(b),sizeof(*(b)),0)
+#define luaM_freearray(L,b,n,t)luaM_reallocv(L,(b),n,0,sizeof(t))
+#define luaM_malloc(L,t)luaM_realloc_(L,NULL,0,(t))
+#define luaM_new(L,t)cast(t*,luaM_malloc(L,sizeof(t)))
+#define luaM_newvector(L,n,t)cast(t*,luaM_reallocv(L,NULL,0,n,sizeof(t)))
+#define luaM_growvector(L,v,nelems,size,t,limit,e)if((nelems)+1>(size))((v)=cast(t*,luaM_growaux_(L,v,&(size),sizeof(t),limit,e)))
+#define luaM_reallocvector(L,v,oldn,n,t)((v)=cast(t*,luaM_reallocv(L,v,oldn,n,sizeof(t))))
+static void*luaM_realloc_(lua_State*L,void*block,size_t oldsize,
+size_t size);
+static void*luaM_toobig(lua_State*L);
+static void*luaM_growaux_(lua_State*L,void*block,int*size,
+size_t size_elem,int limit,
+const char*errormsg);
+typedef struct Zio ZIO;
+#define char2int(c)cast(int,cast(unsigned char,(c)))
+#define zgetc(z)(((z)->n--)>0?char2int(*(z)->p++):luaZ_fill(z))
+typedef struct Mbuffer{
+char*buffer;
+size_t n;
+size_t buffsize;
+}Mbuffer;
+#define luaZ_initbuffer(L,buff)((buff)->buffer=NULL,(buff)->buffsize=0)
+#define luaZ_buffer(buff)((buff)->buffer)
+#define luaZ_sizebuffer(buff)((buff)->buffsize)
+#define luaZ_bufflen(buff)((buff)->n)
+#define luaZ_resetbuffer(buff)((buff)->n=0)
+#define luaZ_resizebuffer(L,buff,size)(luaM_reallocvector(L,(buff)->buffer,(buff)->buffsize,size,char),(buff)->buffsize=size)
+#define luaZ_freebuffer(L,buff)luaZ_resizebuffer(L,buff,0)
+struct Zio{
+size_t n;
+const char*p;
+lua_Reader reader;
+void*data;
+lua_State*L;
+};
+static int luaZ_fill(ZIO*z);
+struct lua_longjmp;
+#define gt(L)(&L->l_gt)
+#define registry(L)(&G(L)->l_registry)
+typedef struct stringtable{
+GCObject**hash;
+lu_int32 nuse;
+int size;
+}stringtable;
+typedef struct CallInfo{
+StkId base;
+StkId func;
+StkId top;
+const Instruction*savedpc;
+int nresults;
+int tailcalls;
+}CallInfo;
+#define curr_func(L)(clvalue(L->ci->func))
+#define ci_func(ci)(clvalue((ci)->func))
+#define f_isLua(ci)(!ci_func(ci)->c.isC)
+#define isLua(ci)(ttisfunction((ci)->func)&&f_isLua(ci))
+typedef struct global_State{
+stringtable strt;
+lua_Alloc frealloc;
+void*ud;
+lu_byte currentwhite;
+lu_byte gcstate;
+int sweepstrgc;
+GCObject*rootgc;
+GCObject**sweepgc;
+GCObject*gray;
+GCObject*grayagain;
+GCObject*weak;
+GCObject*tmudata;
+Mbuffer buff;
+lu_mem GCthreshold;
+lu_mem totalbytes;
+lu_mem estimate;
+lu_mem gcdept;
+int gcpause;
+int gcstepmul;
+lua_CFunction panic;
+TValue l_registry;
+struct lua_State*mainthread;
+UpVal uvhead;
+struct Table*mt[(8+1)];
+TString*tmname[TM_N];
+}global_State;
+struct lua_State{
+GCObject*next;lu_byte tt;lu_byte marked;
+lu_byte status;
+StkId top;
+StkId base;
+global_State*l_G;
+CallInfo*ci;
+const Instruction*savedpc;
+StkId stack_last;
+StkId stack;
+CallInfo*end_ci;
+CallInfo*base_ci;
+int stacksize;
+int size_ci;
+unsigned short nCcalls;
+unsigned short baseCcalls;
+lu_byte hookmask;
+lu_byte allowhook;
+int basehookcount;
+int hookcount;
+lua_Hook hook;
+TValue l_gt;
+TValue env;
+GCObject*openupval;
+GCObject*gclist;
+struct lua_longjmp*errorJmp;
+ptrdiff_t errfunc;
+};
+#define G(L)(L->l_G)
+union GCObject{
+GCheader gch;
+union TString ts;
+union Udata u;
+union Closure cl;
+struct Table h;
+struct Proto p;
+struct UpVal uv;
+struct lua_State th;
+};
+#define rawgco2ts(o)check_exp((o)->gch.tt==4,&((o)->ts))
+#define gco2ts(o)(&rawgco2ts(o)->tsv)
+#define rawgco2u(o)check_exp((o)->gch.tt==7,&((o)->u))
+#define gco2u(o)(&rawgco2u(o)->uv)
+#define gco2cl(o)check_exp((o)->gch.tt==6,&((o)->cl))
+#define gco2h(o)check_exp((o)->gch.tt==5,&((o)->h))
+#define gco2p(o)check_exp((o)->gch.tt==(8+1),&((o)->p))
+#define gco2uv(o)check_exp((o)->gch.tt==(8+2),&((o)->uv))
+#define ngcotouv(o)check_exp((o)==NULL||(o)->gch.tt==(8+2),&((o)->uv))
+#define gco2th(o)check_exp((o)->gch.tt==8,&((o)->th))
+#define obj2gco(v)(cast(GCObject*,(v)))
+static void luaE_freethread(lua_State*L,lua_State*L1);
+#define pcRel(pc,p)(cast(int,(pc)-(p)->code)-1)
+#define getline_(f,pc)(((f)->lineinfo)?(f)->lineinfo[pc]:0)
+#define resethookcount(L)(L->hookcount=L->basehookcount)
+static void luaG_typeerror(lua_State*L,const TValue*o,
+const char*opname);
+static void luaG_runerror(lua_State*L,const char*fmt,...);
+#define luaD_checkstack(L,n)if((char*)L->stack_last-(char*)L->top<=(n)*(int)sizeof(TValue))luaD_growstack(L,n);else condhardstacktests(luaD_reallocstack(L,L->stacksize-5-1));
+#define incr_top(L){luaD_checkstack(L,1);L->top++;}
+#define savestack(L,p)((char*)(p)-(char*)L->stack)
+#define restorestack(L,n)((TValue*)((char*)L->stack+(n)))
+#define saveci(L,p)((char*)(p)-(char*)L->base_ci)
+#define restoreci(L,n)((CallInfo*)((char*)L->base_ci+(n)))
+typedef void(*Pfunc)(lua_State*L,void*ud);
+static int luaD_poscall(lua_State*L,StkId firstResult);
+static void luaD_reallocCI(lua_State*L,int newsize);
+static void luaD_reallocstack(lua_State*L,int newsize);
+static void luaD_growstack(lua_State*L,int n);
+static void luaD_throw(lua_State*L,int errcode);
+static void*luaM_growaux_(lua_State*L,void*block,int*size,size_t size_elems,
+int limit,const char*errormsg){
+void*newblock;
+int newsize;
+if(*size>=limit/2){
+if(*size>=limit)
+luaG_runerror(L,errormsg);
+newsize=limit;
+}
+else{
+newsize=(*size)*2;
+if(newsize<4)
+newsize=4;
+}
+newblock=luaM_reallocv(L,block,*size,newsize,size_elems);
+*size=newsize;
+return newblock;
+}
+static void*luaM_toobig(lua_State*L){
+luaG_runerror(L,"memory allocation error: block too big");
+return NULL;
+}
+static void*luaM_realloc_(lua_State*L,void*block,size_t osize,size_t nsize){
+global_State*g=G(L);
+block=(*g->frealloc)(g->ud,block,osize,nsize);
+if(block==NULL&&nsize>0)
+luaD_throw(L,4);
+g->totalbytes=(g->totalbytes-osize)+nsize;
+return block;
+}
+#define resetbits(x,m)((x)&=cast(lu_byte,~(m)))
+#define setbits(x,m)((x)|=(m))
+#define testbits(x,m)((x)&(m))
+#define bitmask(b)(1<<(b))
+#define bit2mask(b1,b2)(bitmask(b1)|bitmask(b2))
+#define l_setbit(x,b)setbits(x,bitmask(b))
+#define resetbit(x,b)resetbits(x,bitmask(b))
+#define testbit(x,b)testbits(x,bitmask(b))
+#define set2bits(x,b1,b2)setbits(x,(bit2mask(b1,b2)))
+#define reset2bits(x,b1,b2)resetbits(x,(bit2mask(b1,b2)))
+#define test2bits(x,b1,b2)testbits(x,(bit2mask(b1,b2)))
+#define iswhite(x)test2bits((x)->gch.marked,0,1)
+#define isblack(x)testbit((x)->gch.marked,2)
+#define isgray(x)(!isblack(x)&&!iswhite(x))
+#define otherwhite(g)(g->currentwhite^bit2mask(0,1))
+#define isdead(g,v)((v)->gch.marked&otherwhite(g)&bit2mask(0,1))
+#define changewhite(x)((x)->gch.marked^=bit2mask(0,1))
+#define gray2black(x)l_setbit((x)->gch.marked,2)
+#define valiswhite(x)(iscollectable(x)&&iswhite(gcvalue(x)))
+#define luaC_white(g)cast(lu_byte,(g)->currentwhite&bit2mask(0,1))
+#define luaC_checkGC(L){condhardstacktests(luaD_reallocstack(L,L->stacksize-5-1));if(G(L)->totalbytes>=G(L)->GCthreshold)luaC_step(L);}
+#define luaC_barrier(L,p,v){if(valiswhite(v)&&isblack(obj2gco(p)))luaC_barrierf(L,obj2gco(p),gcvalue(v));}
+#define luaC_barriert(L,t,v){if(valiswhite(v)&&isblack(obj2gco(t)))luaC_barrierback(L,t);}
+#define luaC_objbarrier(L,p,o){if(iswhite(obj2gco(o))&&isblack(obj2gco(p)))luaC_barrierf(L,obj2gco(p),obj2gco(o));}
+#define luaC_objbarriert(L,t,o){if(iswhite(obj2gco(o))&&isblack(obj2gco(t)))luaC_barrierback(L,t);}
+static void luaC_step(lua_State*L);
+static void luaC_link(lua_State*L,GCObject*o,lu_byte tt);
+static void luaC_linkupval(lua_State*L,UpVal*uv);
+static void luaC_barrierf(lua_State*L,GCObject*o,GCObject*v);
+static void luaC_barrierback(lua_State*L,Table*t);
+#define sizestring(s)(sizeof(union TString)+((s)->len+1)*sizeof(char))
+#define sizeudata(u)(sizeof(union Udata)+(u)->len)
+#define luaS_new(L,s)(luaS_newlstr(L,s,strlen(s)))
+#define luaS_newliteral(L,s)(luaS_newlstr(L,""s,(sizeof(s)/sizeof(char))-1))
+#define luaS_fix(s)l_setbit((s)->tsv.marked,5)
+static TString*luaS_newlstr(lua_State*L,const char*str,size_t l);
+#define tostring(L,o)((ttype(o)==4)||(luaV_tostring(L,o)))
+#define tonumber(o,n)(ttype(o)==3||(((o)=luaV_tonumber(o,n))!=NULL))
+#define equalobj(L,o1,o2)(ttype(o1)==ttype(o2)&&luaV_equalval(L,o1,o2))
+static int luaV_equalval(lua_State*L,const TValue*t1,const TValue*t2);
+static const TValue*luaV_tonumber(const TValue*obj,TValue*n);
+static int luaV_tostring(lua_State*L,StkId obj);
+static void luaV_execute(lua_State*L,int nexeccalls);
+static void luaV_concat(lua_State*L,int total,int last);
+static const TValue luaO_nilobject_={{NULL},0};
+static int luaO_int2fb(unsigned int x){
+int e=0;
+while(x>=16){
+x=(x+1)>>1;
+e++;
+}
+if(x<8)return x;
+else return((e+1)<<3)|(cast_int(x)-8);
+}
+static int luaO_fb2int(int x){
+int e=(x>>3)&31;
+if(e==0)return x;
+else return((x&7)+8)<<(e-1);
+}
+static int luaO_log2(unsigned int x){
+static const lu_byte log_2[256]={
+0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
+7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
+};
+int l=-1;
+while(x>=256){l+=8;x>>=8;}
+return l+log_2[x];
+}
+static int luaO_rawequalObj(const TValue*t1,const TValue*t2){
+if(ttype(t1)!=ttype(t2))return 0;
+else switch(ttype(t1)){
+case 0:
+return 1;
+case 3:
+return luai_numeq(nvalue(t1),nvalue(t2));
+case 1:
+return bvalue(t1)==bvalue(t2);
+case 2:
+return pvalue(t1)==pvalue(t2);
+default:
+return gcvalue(t1)==gcvalue(t2);
+}
+}
+static int luaO_str2d(const char*s,lua_Number*result){
+char*endptr;
+*result=lua_str2number(s,&endptr);
+if(endptr==s)return 0;
+if(*endptr=='x'||*endptr=='X')
+*result=cast_num(strtoul(s,&endptr,16));
+if(*endptr=='\0')return 1;
+while(isspace(cast(unsigned char,*endptr)))endptr++;
+if(*endptr!='\0')return 0;
+return 1;
+}
+static void pushstr(lua_State*L,const char*str){
+setsvalue(L,L->top,luaS_new(L,str));
+incr_top(L);
+}
+static const char*luaO_pushvfstring(lua_State*L,const char*fmt,va_list argp){
+int n=1;
+pushstr(L,"");
+for(;;){
+const char*e=strchr(fmt,'%');
+if(e==NULL)break;
+setsvalue(L,L->top,luaS_newlstr(L,fmt,e-fmt));
+incr_top(L);
+switch(*(e+1)){
+case's':{
+const char*s=va_arg(argp,char*);
+if(s==NULL)s="(null)";
+pushstr(L,s);
+break;
+}
+case'c':{
+char buff[2];
+buff[0]=cast(char,va_arg(argp,int));
+buff[1]='\0';
+pushstr(L,buff);
+break;
+}
+case'd':{
+setnvalue(L->top,cast_num(va_arg(argp,int)));
+incr_top(L);
+break;
+}
+case'f':{
+setnvalue(L->top,cast_num(va_arg(argp,l_uacNumber)));
+incr_top(L);
+break;
+}
+case'p':{
+char buff[4*sizeof(void*)+8];
+sprintf(buff,"%p",va_arg(argp,void*));
+pushstr(L,buff);
+break;
+}
+case'%':{
+pushstr(L,"%");
+break;
+}
+default:{
+char buff[3];
+buff[0]='%';
+buff[1]=*(e+1);
+buff[2]='\0';
+pushstr(L,buff);
+break;
+}
+}
+n+=2;
+fmt=e+2;
+}
+pushstr(L,fmt);
+luaV_concat(L,n+1,cast_int(L->top-L->base)-1);
+L->top-=n;
+return svalue(L->top-1);
+}
+static const char*luaO_pushfstring(lua_State*L,const char*fmt,...){
+const char*msg;
+va_list argp;
+va_start(argp,fmt);
+msg=luaO_pushvfstring(L,fmt,argp);
+va_end(argp);
+return msg;
+}
+static void luaO_chunkid(char*out,const char*source,size_t bufflen){
+if(*source=='='){
+strncpy(out,source+1,bufflen);
+out[bufflen-1]='\0';
+}
+else{
+if(*source=='@'){
+size_t l;
+source++;
+bufflen-=sizeof(" '...' ");
+l=strlen(source);
+strcpy(out,"");
+if(l>bufflen){
+source+=(l-bufflen);
+strcat(out,"...");
+}
+strcat(out,source);
+}
+else{
+size_t len=strcspn(source,"\n\r");
+bufflen-=sizeof(" [string \"...\"] ");
+if(len>bufflen)len=bufflen;
+strcpy(out,"[string \"");
+if(source[len]!='\0'){
+strncat(out,source,len);
+strcat(out,"...");
+}
+else
+strcat(out,source);
+strcat(out,"\"]");
+}
+}
+}
+#define gnode(t,i)(&(t)->node[i])
+#define gkey(n)(&(n)->i_key.nk)
+#define gval(n)(&(n)->i_val)
+#define gnext(n)((n)->i_key.nk.next)
+#define key2tval(n)(&(n)->i_key.tvk)
+static TValue*luaH_setnum(lua_State*L,Table*t,int key);
+static const TValue*luaH_getstr(Table*t,TString*key);
+static TValue*luaH_set(lua_State*L,Table*t,const TValue*key);
+static const char*const luaT_typenames[]={
+"nil","boolean","userdata","number",
+"string","table","function","userdata","thread",
+"proto","upval"
+};
+static void luaT_init(lua_State*L){
+static const char*const luaT_eventname[]={
+"__index","__newindex",
+"__gc","__mode","__eq",
+"__add","__sub","__mul","__div","__mod",
+"__pow","__unm","__len","__lt","__le",
+"__concat","__call"
+};
+int i;
+for(i=0;i<TM_N;i++){
+G(L)->tmname[i]=luaS_new(L,luaT_eventname[i]);
+luaS_fix(G(L)->tmname[i]);
+}
+}
+static const TValue*luaT_gettm(Table*events,TMS event,TString*ename){
+const TValue*tm=luaH_getstr(events,ename);
+if(ttisnil(tm)){
+events->flags|=cast_byte(1u<<event);
+return NULL;
+}
+else return tm;
+}
+static const TValue*luaT_gettmbyobj(lua_State*L,const TValue*o,TMS event){
+Table*mt;
+switch(ttype(o)){
+case 5:
+mt=hvalue(o)->metatable;
+break;
+case 7:
+mt=uvalue(o)->metatable;
+break;
+default:
+mt=G(L)->mt[ttype(o)];
+}
+return(mt?luaH_getstr(mt,G(L)->tmname[event]):(&luaO_nilobject_));
+}
+#define sizeCclosure(n)(cast(int,sizeof(CClosure))+cast(int,sizeof(TValue)*((n)-1)))
+#define sizeLclosure(n)(cast(int,sizeof(LClosure))+cast(int,sizeof(TValue*)*((n)-1)))
+static Closure*luaF_newCclosure(lua_State*L,int nelems,Table*e){
+Closure*c=cast(Closure*,luaM_malloc(L,sizeCclosure(nelems)));
+luaC_link(L,obj2gco(c),6);
+c->c.isC=1;
+c->c.env=e;
+c->c.nupvalues=cast_byte(nelems);
+return c;
+}
+static Closure*luaF_newLclosure(lua_State*L,int nelems,Table*e){
+Closure*c=cast(Closure*,luaM_malloc(L,sizeLclosure(nelems)));
+luaC_link(L,obj2gco(c),6);
+c->l.isC=0;
+c->l.env=e;
+c->l.nupvalues=cast_byte(nelems);
+while(nelems--)c->l.upvals[nelems]=NULL;
+return c;
+}
+static UpVal*luaF_newupval(lua_State*L){
+UpVal*uv=luaM_new(L,UpVal);
+luaC_link(L,obj2gco(uv),(8+2));
+uv->v=&uv->u.value;
+setnilvalue(uv->v);
+return uv;
+}
+static UpVal*luaF_findupval(lua_State*L,StkId level){
+global_State*g=G(L);
+GCObject**pp=&L->openupval;
+UpVal*p;
+UpVal*uv;
+while(*pp!=NULL&&(p=ngcotouv(*pp))->v>=level){
+if(p->v==level){
+if(isdead(g,obj2gco(p)))
+changewhite(obj2gco(p));
+return p;
+}
+pp=&p->next;
+}
+uv=luaM_new(L,UpVal);
+uv->tt=(8+2);
+uv->marked=luaC_white(g);
+uv->v=level;
+uv->next=*pp;
+*pp=obj2gco(uv);
+uv->u.l.prev=&g->uvhead;
+uv->u.l.next=g->uvhead.u.l.next;
+uv->u.l.next->u.l.prev=uv;
+g->uvhead.u.l.next=uv;
+return uv;
+}
+static void unlinkupval(UpVal*uv){
+uv->u.l.next->u.l.prev=uv->u.l.prev;
+uv->u.l.prev->u.l.next=uv->u.l.next;
+}
+static void luaF_freeupval(lua_State*L,UpVal*uv){
+if(uv->v!=&uv->u.value)
+unlinkupval(uv);
+luaM_free(L,uv);
+}
+static void luaF_close(lua_State*L,StkId level){
+UpVal*uv;
+global_State*g=G(L);
+while(L->openupval!=NULL&&(uv=ngcotouv(L->openupval))->v>=level){
+GCObject*o=obj2gco(uv);
+L->openupval=uv->next;
+if(isdead(g,o))
+luaF_freeupval(L,uv);
+else{
+unlinkupval(uv);
+setobj(L,&uv->u.value,uv->v);
+uv->v=&uv->u.value;
+luaC_linkupval(L,uv);
+}
+}
+}
+static Proto*luaF_newproto(lua_State*L){
+Proto*f=luaM_new(L,Proto);
+luaC_link(L,obj2gco(f),(8+1));
+f->k=NULL;
+f->sizek=0;
+f->p=NULL;
+f->sizep=0;
+f->code=NULL;
+f->sizecode=0;
+f->sizelineinfo=0;
+f->sizeupvalues=0;
+f->nups=0;
+f->upvalues=NULL;
+f->numparams=0;
+f->is_vararg=0;
+f->maxstacksize=0;
+f->lineinfo=NULL;
+f->sizelocvars=0;
+f->locvars=NULL;
+f->linedefined=0;
+f->lastlinedefined=0;
+f->source=NULL;
+return f;
+}
+static void luaF_freeproto(lua_State*L,Proto*f){
+luaM_freearray(L,f->code,f->sizecode,Instruction);
+luaM_freearray(L,f->p,f->sizep,Proto*);
+luaM_freearray(L,f->k,f->sizek,TValue);
+luaM_freearray(L,f->lineinfo,f->sizelineinfo,int);
+luaM_freearray(L,f->locvars,f->sizelocvars,struct LocVar);
+luaM_freearray(L,f->upvalues,f->sizeupvalues,TString*);
+luaM_free(L,f);
+}
+static void luaF_freeclosure(lua_State*L,Closure*c){
+int size=(c->c.isC)?sizeCclosure(c->c.nupvalues):
+sizeLclosure(c->l.nupvalues);
+luaM_freemem(L,c,size);
+}
+#define MASK1(n,p)((~((~(Instruction)0)<<n))<<p)
+#define MASK0(n,p)(~MASK1(n,p))
+#define GET_OPCODE(i)(cast(OpCode,((i)>>0)&MASK1(6,0)))
+#define SET_OPCODE(i,o)((i)=(((i)&MASK0(6,0))|((cast(Instruction,o)<<0)&MASK1(6,0))))
+#define GETARG_A(i)(cast(int,((i)>>(0+6))&MASK1(8,0)))
+#define SETARG_A(i,u)((i)=(((i)&MASK0(8,(0+6)))|((cast(Instruction,u)<<(0+6))&MASK1(8,(0+6)))))
+#define GETARG_B(i)(cast(int,((i)>>(((0+6)+8)+9))&MASK1(9,0)))
+#define SETARG_B(i,b)((i)=(((i)&MASK0(9,(((0+6)+8)+9)))|((cast(Instruction,b)<<(((0+6)+8)+9))&MASK1(9,(((0+6)+8)+9)))))
+#define GETARG_C(i)(cast(int,((i)>>((0+6)+8))&MASK1(9,0)))
+#define SETARG_C(i,b)((i)=(((i)&MASK0(9,((0+6)+8)))|((cast(Instruction,b)<<((0+6)+8))&MASK1(9,((0+6)+8)))))
+#define GETARG_Bx(i)(cast(int,((i)>>((0+6)+8))&MASK1((9+9),0)))
+#define SETARG_Bx(i,b)((i)=(((i)&MASK0((9+9),((0+6)+8)))|((cast(Instruction,b)<<((0+6)+8))&MASK1((9+9),((0+6)+8)))))
+#define GETARG_sBx(i)(GETARG_Bx(i)-(((1<<(9+9))-1)>>1))
+#define SETARG_sBx(i,b)SETARG_Bx((i),cast(unsigned int,(b)+(((1<<(9+9))-1)>>1)))
+#define CREATE_ABC(o,a,b,c)((cast(Instruction,o)<<0)|(cast(Instruction,a)<<(0+6))|(cast(Instruction,b)<<(((0+6)+8)+9))|(cast(Instruction,c)<<((0+6)+8)))
+#define CREATE_ABx(o,a,bc)((cast(Instruction,o)<<0)|(cast(Instruction,a)<<(0+6))|(cast(Instruction,bc)<<((0+6)+8)))
+#define ISK(x)((x)&(1<<(9-1)))
+#define INDEXK(r)((int)(r)&~(1<<(9-1)))
+#define RKASK(x)((x)|(1<<(9-1)))
+static const lu_byte luaP_opmodes[(cast(int,OP_VARARG)+1)];
+#define getBMode(m)(cast(enum OpArgMask,(luaP_opmodes[m]>>4)&3))
+#define getCMode(m)(cast(enum OpArgMask,(luaP_opmodes[m]>>2)&3))
+#define testTMode(m)(luaP_opmodes[m]&(1<<7))
+typedef struct expdesc{
+expkind k;
+union{
+struct{int info,aux;}s;
+lua_Number nval;
+}u;
+int t;
+int f;
+}expdesc;
+typedef struct upvaldesc{
+lu_byte k;
+lu_byte info;
+}upvaldesc;
+struct BlockCnt;
+typedef struct FuncState{
+Proto*f;
+Table*h;
+struct FuncState*prev;
+struct LexState*ls;
+struct lua_State*L;
+struct BlockCnt*bl;
+int pc;
+int lasttarget;
+int jpc;
+int freereg;
+int nk;
+int np;
+short nlocvars;
+lu_byte nactvar;
+upvaldesc upvalues[60];
+unsigned short actvar[200];
+}FuncState;
+static Proto*luaY_parser(lua_State*L,ZIO*z,Mbuffer*buff,
+const char*name);
+struct lua_longjmp{
+struct lua_longjmp*previous;
+jmp_buf b;
+volatile int status;
+};
+static void luaD_seterrorobj(lua_State*L,int errcode,StkId oldtop){
+switch(errcode){
+case 4:{
+setsvalue(L,oldtop,luaS_newliteral(L,"not enough memory"));
+break;
+}
+case 5:{
+setsvalue(L,oldtop,luaS_newliteral(L,"error in error handling"));
+break;
+}
+case 3:
+case 2:{
+setobj(L,oldtop,L->top-1);
+break;
+}
+}
+L->top=oldtop+1;
+}
+static void restore_stack_limit(lua_State*L){
+if(L->size_ci>20000){
+int inuse=cast_int(L->ci-L->base_ci);
+if(inuse+1<20000)
+luaD_reallocCI(L,20000);
+}
+}
+static void resetstack(lua_State*L,int status){
+L->ci=L->base_ci;
+L->base=L->ci->base;
+luaF_close(L,L->base);
+luaD_seterrorobj(L,status,L->base);
+L->nCcalls=L->baseCcalls;
+L->allowhook=1;
+restore_stack_limit(L);
+L->errfunc=0;
+L->errorJmp=NULL;
+}
+static void luaD_throw(lua_State*L,int errcode){
+if(L->errorJmp){
+L->errorJmp->status=errcode;
+LUAI_THROW(L,L->errorJmp);
+}
+else{
+L->status=cast_byte(errcode);
+if(G(L)->panic){
+resetstack(L,errcode);
+G(L)->panic(L);
+}
+exit(EXIT_FAILURE);
+}
+}
+static int luaD_rawrunprotected(lua_State*L,Pfunc f,void*ud){
+struct lua_longjmp lj;
+lj.status=0;
+lj.previous=L->errorJmp;
+L->errorJmp=&lj;
+LUAI_TRY(L,&lj,
+(*f)(L,ud);
+);
+L->errorJmp=lj.previous;
+return lj.status;
+}
+static void correctstack(lua_State*L,TValue*oldstack){
+CallInfo*ci;
+GCObject*up;
+L->top=(L->top-oldstack)+L->stack;
+for(up=L->openupval;up!=NULL;up=up->gch.next)
+gco2uv(up)->v=(gco2uv(up)->v-oldstack)+L->stack;
+for(ci=L->base_ci;ci<=L->ci;ci++){
+ci->top=(ci->top-oldstack)+L->stack;
+ci->base=(ci->base-oldstack)+L->stack;
+ci->func=(ci->func-oldstack)+L->stack;
+}
+L->base=(L->base-oldstack)+L->stack;
+}
+static void luaD_reallocstack(lua_State*L,int newsize){
+TValue*oldstack=L->stack;
+int realsize=newsize+1+5;
+luaM_reallocvector(L,L->stack,L->stacksize,realsize,TValue);
+L->stacksize=realsize;
+L->stack_last=L->stack+newsize;
+correctstack(L,oldstack);
+}
+static void luaD_reallocCI(lua_State*L,int newsize){
+CallInfo*oldci=L->base_ci;
+luaM_reallocvector(L,L->base_ci,L->size_ci,newsize,CallInfo);
+L->size_ci=newsize;
+L->ci=(L->ci-oldci)+L->base_ci;
+L->end_ci=L->base_ci+L->size_ci-1;
+}
+static void luaD_growstack(lua_State*L,int n){
+if(n<=L->stacksize)
+luaD_reallocstack(L,2*L->stacksize);
+else
+luaD_reallocstack(L,L->stacksize+n);
+}
+static CallInfo*growCI(lua_State*L){
+if(L->size_ci>20000)
+luaD_throw(L,5);
+else{
+luaD_reallocCI(L,2*L->size_ci);
+if(L->size_ci>20000)
+luaG_runerror(L,"stack overflow");
+}
+return++L->ci;
+}
+static StkId adjust_varargs(lua_State*L,Proto*p,int actual){
+int i;
+int nfixargs=p->numparams;
+Table*htab=NULL;
+StkId base,fixed;
+for(;actual<nfixargs;++actual)
+setnilvalue(L->top++);
+fixed=L->top-actual;
+base=L->top;
+for(i=0;i<nfixargs;i++){
+setobj(L,L->top++,fixed+i);
+setnilvalue(fixed+i);
+}
+if(htab){
+sethvalue(L,L->top++,htab);
+}
+return base;
+}
+static StkId tryfuncTM(lua_State*L,StkId func){
+const TValue*tm=luaT_gettmbyobj(L,func,TM_CALL);
+StkId p;
+ptrdiff_t funcr=savestack(L,func);
+if(!ttisfunction(tm))
+luaG_typeerror(L,func,"call");
+for(p=L->top;p>func;p--)setobj(L,p,p-1);
+incr_top(L);
+func=restorestack(L,funcr);
+setobj(L,func,tm);
+return func;
+}
+#define inc_ci(L)((L->ci==L->end_ci)?growCI(L):(condhardstacktests(luaD_reallocCI(L,L->size_ci)),++L->ci))
+static int luaD_precall(lua_State*L,StkId func,int nresults){
+LClosure*cl;
+ptrdiff_t funcr;
+if(!ttisfunction(func))
+func=tryfuncTM(L,func);
+funcr=savestack(L,func);
+cl=&clvalue(func)->l;
+L->ci->savedpc=L->savedpc;
+if(!cl->isC){
+CallInfo*ci;
+StkId st,base;
+Proto*p=cl->p;
+luaD_checkstack(L,p->maxstacksize+p->numparams);
+func=restorestack(L,funcr);
+if(!p->is_vararg){
+base=func+1;
+if(L->top>base+p->numparams)
+L->top=base+p->numparams;
+}
+else{
+int nargs=cast_int(L->top-func)-1;
+base=adjust_varargs(L,p,nargs);
+func=restorestack(L,funcr);
+}
+ci=inc_ci(L);
+ci->func=func;
+L->base=ci->base=base;
+ci->top=L->base+p->maxstacksize;
+L->savedpc=p->code;
+ci->tailcalls=0;
+ci->nresults=nresults;
+for(st=L->top;st<ci->top;st++)
+setnilvalue(st);
+L->top=ci->top;
+return 0;
+}
+else{
+CallInfo*ci;
+int n;
+luaD_checkstack(L,20);
+ci=inc_ci(L);
+ci->func=restorestack(L,funcr);
+L->base=ci->base=ci->func+1;
+ci->top=L->top+20;
+ci->nresults=nresults;
+n=(*curr_func(L)->c.f)(L);
+if(n<0)
+return 2;
+else{
+luaD_poscall(L,L->top-n);
+return 1;
+}
+}
+}
+static int luaD_poscall(lua_State*L,StkId firstResult){
+StkId res;
+int wanted,i;
+CallInfo*ci;
+ci=L->ci--;
+res=ci->func;
+wanted=ci->nresults;
+L->base=(ci-1)->base;
+L->savedpc=(ci-1)->savedpc;
+for(i=wanted;i!=0&&firstResult<L->top;i--)
+setobj(L,res++,firstResult++);
+while(i-->0)
+setnilvalue(res++);
+L->top=res;
+return(wanted-(-1));
+}
+static void luaD_call(lua_State*L,StkId func,int nResults){
+if(++L->nCcalls>=200){
+if(L->nCcalls==200)
+luaG_runerror(L,"C stack overflow");
+else if(L->nCcalls>=(200+(200>>3)))
+luaD_throw(L,5);
+}
+if(luaD_precall(L,func,nResults)==0)
+luaV_execute(L,1);
+L->nCcalls--;
+luaC_checkGC(L);
+}
+static int luaD_pcall(lua_State*L,Pfunc func,void*u,
+ptrdiff_t old_top,ptrdiff_t ef){
+int status;
+unsigned short oldnCcalls=L->nCcalls;
+ptrdiff_t old_ci=saveci(L,L->ci);
+lu_byte old_allowhooks=L->allowhook;
+ptrdiff_t old_errfunc=L->errfunc;
+L->errfunc=ef;
+status=luaD_rawrunprotected(L,func,u);
+if(status!=0){
+StkId oldtop=restorestack(L,old_top);
+luaF_close(L,oldtop);
+luaD_seterrorobj(L,status,oldtop);
+L->nCcalls=oldnCcalls;
+L->ci=restoreci(L,old_ci);
+L->base=L->ci->base;
+L->savedpc=L->ci->savedpc;
+L->allowhook=old_allowhooks;
+restore_stack_limit(L);
+}
+L->errfunc=old_errfunc;
+return status;
+}
+struct SParser{
+ZIO*z;
+Mbuffer buff;
+const char*name;
+};
+static void f_parser(lua_State*L,void*ud){
+int i;
+Proto*tf;
+Closure*cl;
+struct SParser*p=cast(struct SParser*,ud);
+luaC_checkGC(L);
+tf=luaY_parser(L,p->z,
+&p->buff,p->name);
+cl=luaF_newLclosure(L,tf->nups,hvalue(gt(L)));
+cl->l.p=tf;
+for(i=0;i<tf->nups;i++)
+cl->l.upvals[i]=luaF_newupval(L);
+setclvalue(L,L->top,cl);
+incr_top(L);
+}
+static int luaD_protectedparser(lua_State*L,ZIO*z,const char*name){
+struct SParser p;
+int status;
+p.z=z;p.name=name;
+luaZ_initbuffer(L,&p.buff);
+status=luaD_pcall(L,f_parser,&p,savestack(L,L->top),L->errfunc);
+luaZ_freebuffer(L,&p.buff);
+return status;
+}
+static void luaS_resize(lua_State*L,int newsize){
+GCObject**newhash;
+stringtable*tb;
+int i;
+if(G(L)->gcstate==2)
+return;
+newhash=luaM_newvector(L,newsize,GCObject*);
+tb=&G(L)->strt;
+for(i=0;i<newsize;i++)newhash[i]=NULL;
+for(i=0;i<tb->size;i++){
+GCObject*p=tb->hash[i];
+while(p){
+GCObject*next=p->gch.next;
+unsigned int h=gco2ts(p)->hash;
+int h1=lmod(h,newsize);
+p->gch.next=newhash[h1];
+newhash[h1]=p;
+p=next;
+}
+}
+luaM_freearray(L,tb->hash,tb->size,TString*);
+tb->size=newsize;
+tb->hash=newhash;
+}
+static TString*newlstr(lua_State*L,const char*str,size_t l,
+unsigned int h){
+TString*ts;
+stringtable*tb;
+if(l+1>(((size_t)(~(size_t)0)-2)-sizeof(TString))/sizeof(char))
+luaM_toobig(L);
+ts=cast(TString*,luaM_malloc(L,(l+1)*sizeof(char)+sizeof(TString)));
+ts->tsv.len=l;
+ts->tsv.hash=h;
+ts->tsv.marked=luaC_white(G(L));
+ts->tsv.tt=4;
+ts->tsv.reserved=0;
+memcpy(ts+1,str,l*sizeof(char));
+((char*)(ts+1))[l]='\0';
+tb=&G(L)->strt;
+h=lmod(h,tb->size);
+ts->tsv.next=tb->hash[h];
+tb->hash[h]=obj2gco(ts);
+tb->nuse++;
+if(tb->nuse>cast(lu_int32,tb->size)&&tb->size<=(INT_MAX-2)/2)
+luaS_resize(L,tb->size*2);
+return ts;
+}
+static TString*luaS_newlstr(lua_State*L,const char*str,size_t l){
+GCObject*o;
+unsigned int h=cast(unsigned int,l);
+size_t step=(l>>5)+1;
+size_t l1;
+for(l1=l;l1>=step;l1-=step)
+h=h^((h<<5)+(h>>2)+cast(unsigned char,str[l1-1]));
+for(o=G(L)->strt.hash[lmod(h,G(L)->strt.size)];
+o!=NULL;
+o=o->gch.next){
+TString*ts=rawgco2ts(o);
+if(ts->tsv.len==l&&(memcmp(str,getstr(ts),l)==0)){
+if(isdead(G(L),o))changewhite(o);
+return ts;
+}
+}
+return newlstr(L,str,l,h);
+}
+static Udata*luaS_newudata(lua_State*L,size_t s,Table*e){
+Udata*u;
+if(s>((size_t)(~(size_t)0)-2)-sizeof(Udata))
+luaM_toobig(L);
+u=cast(Udata*,luaM_malloc(L,s+sizeof(Udata)));
+u->uv.marked=luaC_white(G(L));
+u->uv.tt=7;
+u->uv.len=s;
+u->uv.metatable=NULL;
+u->uv.env=e;
+u->uv.next=G(L)->mainthread->next;
+G(L)->mainthread->next=obj2gco(u);
+return u;
+}
+#define hashpow2(t,n)(gnode(t,lmod((n),sizenode(t))))
+#define hashstr(t,str)hashpow2(t,(str)->tsv.hash)
+#define hashboolean(t,p)hashpow2(t,p)
+#define hashmod(t,n)(gnode(t,((n)%((sizenode(t)-1)|1))))
+#define hashpointer(t,p)hashmod(t,IntPoint(p))
+static const Node dummynode_={
+{{NULL},0},
+{{{NULL},0,NULL}}
+};
+static Node*hashnum(const Table*t,lua_Number n){
+unsigned int a[cast_int(sizeof(lua_Number)/sizeof(int))];
+int i;
+if(luai_numeq(n,0))
+return gnode(t,0);
+memcpy(a,&n,sizeof(a));
+for(i=1;i<cast_int(sizeof(lua_Number)/sizeof(int));i++)a[0]+=a[i];
+return hashmod(t,a[0]);
+}
+static Node*mainposition(const Table*t,const TValue*key){
+switch(ttype(key)){
+case 3:
+return hashnum(t,nvalue(key));
+case 4:
+return hashstr(t,rawtsvalue(key));
+case 1:
+return hashboolean(t,bvalue(key));
+case 2:
+return hashpointer(t,pvalue(key));
+default:
+return hashpointer(t,gcvalue(key));
+}
+}
+static int arrayindex(const TValue*key){
+if(ttisnumber(key)){
+lua_Number n=nvalue(key);
+int k;
+lua_number2int(k,n);
+if(luai_numeq(cast_num(k),n))
+return k;
+}
+return-1;
+}
+static int findindex(lua_State*L,Table*t,StkId key){
+int i;
+if(ttisnil(key))return-1;
+i=arrayindex(key);
+if(0<i&&i<=t->sizearray)
+return i-1;
+else{
+Node*n=mainposition(t,key);
+do{
+if(luaO_rawequalObj(key2tval(n),key)||
+(ttype(gkey(n))==(8+3)&&iscollectable(key)&&
+gcvalue(gkey(n))==gcvalue(key))){
+i=cast_int(n-gnode(t,0));
+return i+t->sizearray;
+}
+else n=gnext(n);
+}while(n);
+luaG_runerror(L,"invalid key to "LUA_QL("next"));
+return 0;
+}
+}
+static int luaH_next(lua_State*L,Table*t,StkId key){
+int i=findindex(L,t,key);
+for(i++;i<t->sizearray;i++){
+if(!ttisnil(&t->array[i])){
+setnvalue(key,cast_num(i+1));
+setobj(L,key+1,&t->array[i]);
+return 1;
+}
+}
+for(i-=t->sizearray;i<(int)sizenode(t);i++){
+if(!ttisnil(gval(gnode(t,i)))){
+setobj(L,key,key2tval(gnode(t,i)));
+setobj(L,key+1,gval(gnode(t,i)));
+return 1;
+}
+}
+return 0;
+}
+static int computesizes(int nums[],int*narray){
+int i;
+int twotoi;
+int a=0;
+int na=0;
+int n=0;
+for(i=0,twotoi=1;twotoi/2<*narray;i++,twotoi*=2){
+if(nums[i]>0){
+a+=nums[i];
+if(a>twotoi/2){
+n=twotoi;
+na=a;
+}
+}
+if(a==*narray)break;
+}
+*narray=n;
+return na;
+}
+static int countint(const TValue*key,int*nums){
+int k=arrayindex(key);
+if(0<k&&k<=(1<<(32-2))){
+nums[ceillog2(k)]++;
+return 1;
+}
+else
+return 0;
+}
+static int numusearray(const Table*t,int*nums){
+int lg;
+int ttlg;
+int ause=0;
+int i=1;
+for(lg=0,ttlg=1;lg<=(32-2);lg++,ttlg*=2){
+int lc=0;
+int lim=ttlg;
+if(lim>t->sizearray){
+lim=t->sizearray;
+if(i>lim)
+break;
+}
+for(;i<=lim;i++){
+if(!ttisnil(&t->array[i-1]))
+lc++;
+}
+nums[lg]+=lc;
+ause+=lc;
+}
+return ause;
+}
+static int numusehash(const Table*t,int*nums,int*pnasize){
+int totaluse=0;
+int ause=0;
+int i=sizenode(t);
+while(i--){
+Node*n=&t->node[i];
+if(!ttisnil(gval(n))){
+ause+=countint(key2tval(n),nums);
+totaluse++;
+}
+}
+*pnasize+=ause;
+return totaluse;
+}
+static void setarrayvector(lua_State*L,Table*t,int size){
+int i;
+luaM_reallocvector(L,t->array,t->sizearray,size,TValue);
+for(i=t->sizearray;i<size;i++)
+setnilvalue(&t->array[i]);
+t->sizearray=size;
+}
+static void setnodevector(lua_State*L,Table*t,int size){
+int lsize;
+if(size==0){
+t->node=cast(Node*,(&dummynode_));
+lsize=0;
+}
+else{
+int i;
+lsize=ceillog2(size);
+if(lsize>(32-2))
+luaG_runerror(L,"table overflow");
+size=twoto(lsize);
+t->node=luaM_newvector(L,size,Node);
+for(i=0;i<size;i++){
+Node*n=gnode(t,i);
+gnext(n)=NULL;
+setnilvalue(gkey(n));
+setnilvalue(gval(n));
+}
+}
+t->lsizenode=cast_byte(lsize);
+t->lastfree=gnode(t,size);
+}
+static void resize(lua_State*L,Table*t,int nasize,int nhsize){
+int i;
+int oldasize=t->sizearray;
+int oldhsize=t->lsizenode;
+Node*nold=t->node;
+if(nasize>oldasize)
+setarrayvector(L,t,nasize);
+setnodevector(L,t,nhsize);
+if(nasize<oldasize){
+t->sizearray=nasize;
+for(i=nasize;i<oldasize;i++){
+if(!ttisnil(&t->array[i]))
+setobj(L,luaH_setnum(L,t,i+1),&t->array[i]);
+}
+luaM_reallocvector(L,t->array,oldasize,nasize,TValue);
+}
+for(i=twoto(oldhsize)-1;i>=0;i--){
+Node*old=nold+i;
+if(!ttisnil(gval(old)))
+setobj(L,luaH_set(L,t,key2tval(old)),gval(old));
+}
+if(nold!=(&dummynode_))
+luaM_freearray(L,nold,twoto(oldhsize),Node);
+}
+static void luaH_resizearray(lua_State*L,Table*t,int nasize){
+int nsize=(t->node==(&dummynode_))?0:sizenode(t);
+resize(L,t,nasize,nsize);
+}
+static void rehash(lua_State*L,Table*t,const TValue*ek){
+int nasize,na;
+int nums[(32-2)+1];
+int i;
+int totaluse;
+for(i=0;i<=(32-2);i++)nums[i]=0;
+nasize=numusearray(t,nums);
+totaluse=nasize;
+totaluse+=numusehash(t,nums,&nasize);
+nasize+=countint(ek,nums);
+totaluse++;
+na=computesizes(nums,&nasize);
+resize(L,t,nasize,totaluse-na);
+}
+static Table*luaH_new(lua_State*L,int narray,int nhash){
+Table*t=luaM_new(L,Table);
+luaC_link(L,obj2gco(t),5);
+t->metatable=NULL;
+t->flags=cast_byte(~0);
+t->array=NULL;
+t->sizearray=0;
+t->lsizenode=0;
+t->node=cast(Node*,(&dummynode_));
+setarrayvector(L,t,narray);
+setnodevector(L,t,nhash);
+return t;
+}
+static void luaH_free(lua_State*L,Table*t){
+if(t->node!=(&dummynode_))
+luaM_freearray(L,t->node,sizenode(t),Node);
+luaM_freearray(L,t->array,t->sizearray,TValue);
+luaM_free(L,t);
+}
+static Node*getfreepos(Table*t){
+while(t->lastfree-->t->node){
+if(ttisnil(gkey(t->lastfree)))
+return t->lastfree;
+}
+return NULL;
+}
+static TValue*newkey(lua_State*L,Table*t,const TValue*key){
+Node*mp=mainposition(t,key);
+if(!ttisnil(gval(mp))||mp==(&dummynode_)){
+Node*othern;
+Node*n=getfreepos(t);
+if(n==NULL){
+rehash(L,t,key);
+return luaH_set(L,t,key);
+}
+othern=mainposition(t,key2tval(mp));
+if(othern!=mp){
+while(gnext(othern)!=mp)othern=gnext(othern);
+gnext(othern)=n;
+*n=*mp;
+gnext(mp)=NULL;
+setnilvalue(gval(mp));
+}
+else{
+gnext(n)=gnext(mp);
+gnext(mp)=n;
+mp=n;
+}
+}
+gkey(mp)->value=key->value;gkey(mp)->tt=key->tt;
+luaC_barriert(L,t,key);
+return gval(mp);
+}
+static const TValue*luaH_getnum(Table*t,int key){
+if(cast(unsigned int,key)-1<cast(unsigned int,t->sizearray))
+return&t->array[key-1];
+else{
+lua_Number nk=cast_num(key);
+Node*n=hashnum(t,nk);
+do{
+if(ttisnumber(gkey(n))&&luai_numeq(nvalue(gkey(n)),nk))
+return gval(n);
+else n=gnext(n);
+}while(n);
+return(&luaO_nilobject_);
+}
+}
+static const TValue*luaH_getstr(Table*t,TString*key){
+Node*n=hashstr(t,key);
+do{
+if(ttisstring(gkey(n))&&rawtsvalue(gkey(n))==key)
+return gval(n);
+else n=gnext(n);
+}while(n);
+return(&luaO_nilobject_);
+}
+static const TValue*luaH_get(Table*t,const TValue*key){
+switch(ttype(key)){
+case 0:return(&luaO_nilobject_);
+case 4:return luaH_getstr(t,rawtsvalue(key));
+case 3:{
+int k;
+lua_Number n=nvalue(key);
+lua_number2int(k,n);
+if(luai_numeq(cast_num(k),nvalue(key)))
+return luaH_getnum(t,k);
+}
+/*fallthrough*/
+default:{
+Node*n=mainposition(t,key);
+do{
+if(luaO_rawequalObj(key2tval(n),key))
+return gval(n);
+else n=gnext(n);
+}while(n);
+return(&luaO_nilobject_);
+}
+}
+}
+static TValue*luaH_set(lua_State*L,Table*t,const TValue*key){
+const TValue*p=luaH_get(t,key);
+t->flags=0;
+if(p!=(&luaO_nilobject_))
+return cast(TValue*,p);
+else{
+if(ttisnil(key))luaG_runerror(L,"table index is nil");
+else if(ttisnumber(key)&&luai_numisnan(nvalue(key)))
+luaG_runerror(L,"table index is NaN");
+return newkey(L,t,key);
+}
+}
+static TValue*luaH_setnum(lua_State*L,Table*t,int key){
+const TValue*p=luaH_getnum(t,key);
+if(p!=(&luaO_nilobject_))
+return cast(TValue*,p);
+else{
+TValue k;
+setnvalue(&k,cast_num(key));
+return newkey(L,t,&k);
+}
+}
+static TValue*luaH_setstr(lua_State*L,Table*t,TString*key){
+const TValue*p=luaH_getstr(t,key);
+if(p!=(&luaO_nilobject_))
+return cast(TValue*,p);
+else{
+TValue k;
+setsvalue(L,&k,key);
+return newkey(L,t,&k);
+}
+}
+static int unbound_search(Table*t,unsigned int j){
+unsigned int i=j;
+j++;
+while(!ttisnil(luaH_getnum(t,j))){
+i=j;
+j*=2;
+if(j>cast(unsigned int,(INT_MAX-2))){
+i=1;
+while(!ttisnil(luaH_getnum(t,i)))i++;
+return i-1;
+}
+}
+while(j-i>1){
+unsigned int m=(i+j)/2;
+if(ttisnil(luaH_getnum(t,m)))j=m;
+else i=m;
+}
+return i;
+}
+static int luaH_getn(Table*t){
+unsigned int j=t->sizearray;
+if(j>0&&ttisnil(&t->array[j-1])){
+unsigned int i=0;
+while(j-i>1){
+unsigned int m=(i+j)/2;
+if(ttisnil(&t->array[m-1]))j=m;
+else i=m;
+}
+return i;
+}
+else if(t->node==(&dummynode_))
+return j;
+else return unbound_search(t,j);
+}
+#define makewhite(g,x)((x)->gch.marked=cast_byte(((x)->gch.marked&cast_byte(~(bitmask(2)|bit2mask(0,1))))|luaC_white(g)))
+#define white2gray(x)reset2bits((x)->gch.marked,0,1)
+#define black2gray(x)resetbit((x)->gch.marked,2)
+#define stringmark(s)reset2bits((s)->tsv.marked,0,1)
+#define isfinalized(u)testbit((u)->marked,3)
+#define markfinalized(u)l_setbit((u)->marked,3)
+#define markvalue(g,o){checkconsistency(o);if(iscollectable(o)&&iswhite(gcvalue(o)))reallymarkobject(g,gcvalue(o));}
+#define markobject(g,t){if(iswhite(obj2gco(t)))reallymarkobject(g,obj2gco(t));}
+#define setthreshold(g)(g->GCthreshold=(g->estimate/100)*g->gcpause)
+static void removeentry(Node*n){
+if(iscollectable(gkey(n)))
+setttype(gkey(n),(8+3));
+}
+static void reallymarkobject(global_State*g,GCObject*o){
+white2gray(o);
+switch(o->gch.tt){
+case 4:{
+return;
+}
+case 7:{
+Table*mt=gco2u(o)->metatable;
+gray2black(o);
+if(mt)markobject(g,mt);
+markobject(g,gco2u(o)->env);
+return;
+}
+case(8+2):{
+UpVal*uv=gco2uv(o);
+markvalue(g,uv->v);
+if(uv->v==&uv->u.value)
+gray2black(o);
+return;
+}
+case 6:{
+gco2cl(o)->c.gclist=g->gray;
+g->gray=o;
+break;
+}
+case 5:{
+gco2h(o)->gclist=g->gray;
+g->gray=o;
+break;
+}
+case 8:{
+gco2th(o)->gclist=g->gray;
+g->gray=o;
+break;
+}
+case(8+1):{
+gco2p(o)->gclist=g->gray;
+g->gray=o;
+break;
+}
+default:;
+}
+}
+static void marktmu(global_State*g){
+GCObject*u=g->tmudata;
+if(u){
+do{
+u=u->gch.next;
+makewhite(g,u);
+reallymarkobject(g,u);
+}while(u!=g->tmudata);
+}
+}
+static size_t luaC_separateudata(lua_State*L,int all){
+global_State*g=G(L);
+size_t deadmem=0;
+GCObject**p=&g->mainthread->next;
+GCObject*curr;
+while((curr=*p)!=NULL){
+if(!(iswhite(curr)||all)||isfinalized(gco2u(curr)))
+p=&curr->gch.next;
+else if(fasttm(L,gco2u(curr)->metatable,TM_GC)==NULL){
+markfinalized(gco2u(curr));
+p=&curr->gch.next;
+}
+else{
+deadmem+=sizeudata(gco2u(curr));
+markfinalized(gco2u(curr));
+*p=curr->gch.next;
+if(g->tmudata==NULL)
+g->tmudata=curr->gch.next=curr;
+else{
+curr->gch.next=g->tmudata->gch.next;
+g->tmudata->gch.next=curr;
+g->tmudata=curr;
+}
+}
+}
+return deadmem;
+}
+static int traversetable(global_State*g,Table*h){
+int i;
+int weakkey=0;
+int weakvalue=0;
+const TValue*mode;
+if(h->metatable)
+markobject(g,h->metatable);
+mode=gfasttm(g,h->metatable,TM_MODE);
+if(mode&&ttisstring(mode)){
+weakkey=(strchr(svalue(mode),'k')!=NULL);
+weakvalue=(strchr(svalue(mode),'v')!=NULL);
+if(weakkey||weakvalue){
+h->marked&=~(bitmask(3)|bitmask(4));
+h->marked|=cast_byte((weakkey<<3)|
+(weakvalue<<4));
+h->gclist=g->weak;
+g->weak=obj2gco(h);
+}
+}
+if(weakkey&&weakvalue)return 1;
+if(!weakvalue){
+i=h->sizearray;
+while(i--)
+markvalue(g,&h->array[i]);
+}
+i=sizenode(h);
+while(i--){
+Node*n=gnode(h,i);
+if(ttisnil(gval(n)))
+removeentry(n);
+else{
+if(!weakkey)markvalue(g,gkey(n));
+if(!weakvalue)markvalue(g,gval(n));
+}
+}
+return weakkey||weakvalue;
+}
+static void traverseproto(global_State*g,Proto*f){
+int i;
+if(f->source)stringmark(f->source);
+for(i=0;i<f->sizek;i++)
+markvalue(g,&f->k[i]);
+for(i=0;i<f->sizeupvalues;i++){
+if(f->upvalues[i])
+stringmark(f->upvalues[i]);
+}
+for(i=0;i<f->sizep;i++){
+if(f->p[i])
+markobject(g,f->p[i]);
+}
+for(i=0;i<f->sizelocvars;i++){
+if(f->locvars[i].varname)
+stringmark(f->locvars[i].varname);
+}
+}
+static void traverseclosure(global_State*g,Closure*cl){
+markobject(g,cl->c.env);
+if(cl->c.isC){
+int i;
+for(i=0;i<cl->c.nupvalues;i++)
+markvalue(g,&cl->c.upvalue[i]);
+}
+else{
+int i;
+markobject(g,cl->l.p);
+for(i=0;i<cl->l.nupvalues;i++)
+markobject(g,cl->l.upvals[i]);
+}
+}
+static void checkstacksizes(lua_State*L,StkId max){
+int ci_used=cast_int(L->ci-L->base_ci);
+int s_used=cast_int(max-L->stack);
+if(L->size_ci>20000)
+return;
+if(4*ci_used<L->size_ci&&2*8<L->size_ci)
+luaD_reallocCI(L,L->size_ci/2);
+condhardstacktests(luaD_reallocCI(L,ci_used+1));
+if(4*s_used<L->stacksize&&
+2*((2*20)+5)<L->stacksize)
+luaD_reallocstack(L,L->stacksize/2);
+condhardstacktests(luaD_reallocstack(L,s_used));
+}
+static void traversestack(global_State*g,lua_State*l){
+StkId o,lim;
+CallInfo*ci;
+markvalue(g,gt(l));
+lim=l->top;
+for(ci=l->base_ci;ci<=l->ci;ci++){
+if(lim<ci->top)lim=ci->top;
+}
+for(o=l->stack;o<l->top;o++)
+markvalue(g,o);
+for(;o<=lim;o++)
+setnilvalue(o);
+checkstacksizes(l,lim);
+}
+static l_mem propagatemark(global_State*g){
+GCObject*o=g->gray;
+gray2black(o);
+switch(o->gch.tt){
+case 5:{
+Table*h=gco2h(o);
+g->gray=h->gclist;
+if(traversetable(g,h))
+black2gray(o);
+return sizeof(Table)+sizeof(TValue)*h->sizearray+
+sizeof(Node)*sizenode(h);
+}
+case 6:{
+Closure*cl=gco2cl(o);
+g->gray=cl->c.gclist;
+traverseclosure(g,cl);
+return(cl->c.isC)?sizeCclosure(cl->c.nupvalues):
+sizeLclosure(cl->l.nupvalues);
+}
+case 8:{
+lua_State*th=gco2th(o);
+g->gray=th->gclist;
+th->gclist=g->grayagain;
+g->grayagain=o;
+black2gray(o);
+traversestack(g,th);
+return sizeof(lua_State)+sizeof(TValue)*th->stacksize+
+sizeof(CallInfo)*th->size_ci;
+}
+case(8+1):{
+Proto*p=gco2p(o);
+g->gray=p->gclist;
+traverseproto(g,p);
+return sizeof(Proto)+sizeof(Instruction)*p->sizecode+
+sizeof(Proto*)*p->sizep+
+sizeof(TValue)*p->sizek+
+sizeof(int)*p->sizelineinfo+
+sizeof(LocVar)*p->sizelocvars+
+sizeof(TString*)*p->sizeupvalues;
+}
+default:return 0;
+}
+}
+static size_t propagateall(global_State*g){
+size_t m=0;
+while(g->gray)m+=propagatemark(g);
+return m;
+}
+static int iscleared(const TValue*o,int iskey){
+if(!iscollectable(o))return 0;
+if(ttisstring(o)){
+stringmark(rawtsvalue(o));
+return 0;
+}
+return iswhite(gcvalue(o))||
+(ttisuserdata(o)&&(!iskey&&isfinalized(uvalue(o))));
+}
+static void cleartable(GCObject*l){
+while(l){
+Table*h=gco2h(l);
+int i=h->sizearray;
+if(testbit(h->marked,4)){
+while(i--){
+TValue*o=&h->array[i];
+if(iscleared(o,0))
+setnilvalue(o);
+}
+}
+i=sizenode(h);
+while(i--){
+Node*n=gnode(h,i);
+if(!ttisnil(gval(n))&&
+(iscleared(key2tval(n),1)||iscleared(gval(n),0))){
+setnilvalue(gval(n));
+removeentry(n);
+}
+}
+l=h->gclist;
+}
+}
+static void freeobj(lua_State*L,GCObject*o){
+switch(o->gch.tt){
+case(8+1):luaF_freeproto(L,gco2p(o));break;
+case 6:luaF_freeclosure(L,gco2cl(o));break;
+case(8+2):luaF_freeupval(L,gco2uv(o));break;
+case 5:luaH_free(L,gco2h(o));break;
+case 8:{
+luaE_freethread(L,gco2th(o));
+break;
+}
+case 4:{
+G(L)->strt.nuse--;
+luaM_freemem(L,o,sizestring(gco2ts(o)));
+break;
+}
+case 7:{
+luaM_freemem(L,o,sizeudata(gco2u(o)));
+break;
+}
+default:;
+}
+}
+#define sweepwholelist(L,p)sweeplist(L,p,((lu_mem)(~(lu_mem)0)-2))
+static GCObject**sweeplist(lua_State*L,GCObject**p,lu_mem count){
+GCObject*curr;
+global_State*g=G(L);
+int deadmask=otherwhite(g);
+while((curr=*p)!=NULL&&count-->0){
+if(curr->gch.tt==8)
+sweepwholelist(L,&gco2th(curr)->openupval);
+if((curr->gch.marked^bit2mask(0,1))&deadmask){
+makewhite(g,curr);
+p=&curr->gch.next;
+}
+else{
+*p=curr->gch.next;
+if(curr==g->rootgc)
+g->rootgc=curr->gch.next;
+freeobj(L,curr);
+}
+}
+return p;
+}
+static void checkSizes(lua_State*L){
+global_State*g=G(L);
+if(g->strt.nuse<cast(lu_int32,g->strt.size/4)&&
+g->strt.size>32*2)
+luaS_resize(L,g->strt.size/2);
+if(luaZ_sizebuffer(&g->buff)>32*2){
+size_t newsize=luaZ_sizebuffer(&g->buff)/2;
+luaZ_resizebuffer(L,&g->buff,newsize);
+}
+}
+static void GCTM(lua_State*L){
+global_State*g=G(L);
+GCObject*o=g->tmudata->gch.next;
+Udata*udata=rawgco2u(o);
+const TValue*tm;
+if(o==g->tmudata)
+g->tmudata=NULL;
+else
+g->tmudata->gch.next=udata->uv.next;
+udata->uv.next=g->mainthread->next;
+g->mainthread->next=o;
+makewhite(g,o);
+tm=fasttm(L,udata->uv.metatable,TM_GC);
+if(tm!=NULL){
+lu_byte oldah=L->allowhook;
+lu_mem oldt=g->GCthreshold;
+L->allowhook=0;
+g->GCthreshold=2*g->totalbytes;
+setobj(L,L->top,tm);
+setuvalue(L,L->top+1,udata);
+L->top+=2;
+luaD_call(L,L->top-2,0);
+L->allowhook=oldah;
+g->GCthreshold=oldt;
+}
+}
+static void luaC_callGCTM(lua_State*L){
+while(G(L)->tmudata)
+GCTM(L);
+}
+static void luaC_freeall(lua_State*L){
+global_State*g=G(L);
+int i;
+g->currentwhite=bit2mask(0,1)|bitmask(6);
+sweepwholelist(L,&g->rootgc);
+for(i=0;i<g->strt.size;i++)
+sweepwholelist(L,&g->strt.hash[i]);
+}
+static void markmt(global_State*g){
+int i;
+for(i=0;i<(8+1);i++)
+if(g->mt[i])markobject(g,g->mt[i]);
+}
+static void markroot(lua_State*L){
+global_State*g=G(L);
+g->gray=NULL;
+g->grayagain=NULL;
+g->weak=NULL;
+markobject(g,g->mainthread);
+markvalue(g,gt(g->mainthread));
+markvalue(g,registry(L));
+markmt(g);
+g->gcstate=1;
+}
+static void remarkupvals(global_State*g){
+UpVal*uv;
+for(uv=g->uvhead.u.l.next;uv!=&g->uvhead;uv=uv->u.l.next){
+if(isgray(obj2gco(uv)))
+markvalue(g,uv->v);
+}
+}
+static void atomic(lua_State*L){
+global_State*g=G(L);
+size_t udsize;
+remarkupvals(g);
+propagateall(g);
+g->gray=g->weak;
+g->weak=NULL;
+markobject(g,L);
+markmt(g);
+propagateall(g);
+g->gray=g->grayagain;
+g->grayagain=NULL;
+propagateall(g);
+udsize=luaC_separateudata(L,0);
+marktmu(g);
+udsize+=propagateall(g);
+cleartable(g->weak);
+g->currentwhite=cast_byte(otherwhite(g));
+g->sweepstrgc=0;
+g->sweepgc=&g->rootgc;
+g->gcstate=2;
+g->estimate=g->totalbytes-udsize;
+}
+static l_mem singlestep(lua_State*L){
+global_State*g=G(L);
+switch(g->gcstate){
+case 0:{
+markroot(L);
+return 0;
+}
+case 1:{
+if(g->gray)
+return propagatemark(g);
+else{
+atomic(L);
+return 0;
+}
+}
+case 2:{
+lu_mem old=g->totalbytes;
+sweepwholelist(L,&g->strt.hash[g->sweepstrgc++]);
+if(g->sweepstrgc>=g->strt.size)
+g->gcstate=3;
+g->estimate-=old-g->totalbytes;
+return 10;
+}
+case 3:{
+lu_mem old=g->totalbytes;
+g->sweepgc=sweeplist(L,g->sweepgc,40);
+if(*g->sweepgc==NULL){
+checkSizes(L);
+g->gcstate=4;
+}
+g->estimate-=old-g->totalbytes;
+return 40*10;
+}
+case 4:{
+if(g->tmudata){
+GCTM(L);
+if(g->estimate>100)
+g->estimate-=100;
+return 100;
+}
+else{
+g->gcstate=0;
+g->gcdept=0;
+return 0;
+}
+}
+default:return 0;
+}
+}
+static void luaC_step(lua_State*L){
+global_State*g=G(L);
+l_mem lim=(1024u/100)*g->gcstepmul;
+if(lim==0)
+lim=(((lu_mem)(~(lu_mem)0)-2)-1)/2;
+g->gcdept+=g->totalbytes-g->GCthreshold;
+do{
+lim-=singlestep(L);
+if(g->gcstate==0)
+break;
+}while(lim>0);
+if(g->gcstate!=0){
+if(g->gcdept<1024u)
+g->GCthreshold=g->totalbytes+1024u;
+else{
+g->gcdept-=1024u;
+g->GCthreshold=g->totalbytes;
+}
+}
+else{
+setthreshold(g);
+}
+}
+static void luaC_barrierf(lua_State*L,GCObject*o,GCObject*v){
+global_State*g=G(L);
+if(g->gcstate==1)
+reallymarkobject(g,v);
+else
+makewhite(g,o);
+}
+static void luaC_barrierback(lua_State*L,Table*t){
+global_State*g=G(L);
+GCObject*o=obj2gco(t);
+black2gray(o);
+t->gclist=g->grayagain;
+g->grayagain=o;
+}
+static void luaC_link(lua_State*L,GCObject*o,lu_byte tt){
+global_State*g=G(L);
+o->gch.next=g->rootgc;
+g->rootgc=o;
+o->gch.marked=luaC_white(g);
+o->gch.tt=tt;
+}
+static void luaC_linkupval(lua_State*L,UpVal*uv){
+global_State*g=G(L);
+GCObject*o=obj2gco(uv);
+o->gch.next=g->rootgc;
+g->rootgc=o;
+if(isgray(o)){
+if(g->gcstate==1){
+gray2black(o);
+luaC_barrier(L,uv,uv->v);
+}
+else{
+makewhite(g,o);
+}
+}
+}
+typedef union{
+lua_Number r;
+TString*ts;
+}SemInfo;
+typedef struct Token{
+int token;
+SemInfo seminfo;
+}Token;
+typedef struct LexState{
+int current;
+int linenumber;
+int lastline;
+Token t;
+Token lookahead;
+struct FuncState*fs;
+struct lua_State*L;
+ZIO*z;
+Mbuffer*buff;
+TString*source;
+char decpoint;
+}LexState;
+static void luaX_init(lua_State*L);
+static void luaX_lexerror(LexState*ls,const char*msg,int token);
+#define state_size(x)(sizeof(x)+0)
+#define fromstate(l)(cast(lu_byte*,(l))-0)
+#define tostate(l)(cast(lua_State*,cast(lu_byte*,l)+0))
+typedef struct LG{
+lua_State l;
+global_State g;
+}LG;
+static void stack_init(lua_State*L1,lua_State*L){
+L1->base_ci=luaM_newvector(L,8,CallInfo);
+L1->ci=L1->base_ci;
+L1->size_ci=8;
+L1->end_ci=L1->base_ci+L1->size_ci-1;
+L1->stack=luaM_newvector(L,(2*20)+5,TValue);
+L1->stacksize=(2*20)+5;
+L1->top=L1->stack;
+L1->stack_last=L1->stack+(L1->stacksize-5)-1;
+L1->ci->func=L1->top;
+setnilvalue(L1->top++);
+L1->base=L1->ci->base=L1->top;
+L1->ci->top=L1->top+20;
+}
+static void freestack(lua_State*L,lua_State*L1){
+luaM_freearray(L,L1->base_ci,L1->size_ci,CallInfo);
+luaM_freearray(L,L1->stack,L1->stacksize,TValue);
+}
+static void f_luaopen(lua_State*L,void*ud){
+global_State*g=G(L);
+UNUSED(ud);
+stack_init(L,L);
+sethvalue(L,gt(L),luaH_new(L,0,2));
+sethvalue(L,registry(L),luaH_new(L,0,2));
+luaS_resize(L,32);
+luaT_init(L);
+luaX_init(L);
+luaS_fix(luaS_newliteral(L,"not enough memory"));
+g->GCthreshold=4*g->totalbytes;
+}
+static void preinit_state(lua_State*L,global_State*g){
+G(L)=g;
+L->stack=NULL;
+L->stacksize=0;
+L->errorJmp=NULL;
+L->hook=NULL;
+L->hookmask=0;
+L->basehookcount=0;
+L->allowhook=1;
+resethookcount(L);
+L->openupval=NULL;
+L->size_ci=0;
+L->nCcalls=L->baseCcalls=0;
+L->status=0;
+L->base_ci=L->ci=NULL;
+L->savedpc=NULL;
+L->errfunc=0;
+setnilvalue(gt(L));
+}
+static void close_state(lua_State*L){
+global_State*g=G(L);
+luaF_close(L,L->stack);
+luaC_freeall(L);
+luaM_freearray(L,G(L)->strt.hash,G(L)->strt.size,TString*);
+luaZ_freebuffer(L,&g->buff);
+freestack(L,L);
+(*g->frealloc)(g->ud,fromstate(L),state_size(LG),0);
+}
+static void luaE_freethread(lua_State*L,lua_State*L1){
+luaF_close(L1,L1->stack);
+freestack(L,L1);
+luaM_freemem(L,fromstate(L1),state_size(lua_State));
+}
+static lua_State*lua_newstate(lua_Alloc f,void*ud){
+int i;
+lua_State*L;
+global_State*g;
+void*l=(*f)(ud,NULL,0,state_size(LG));
+if(l==NULL)return NULL;
+L=tostate(l);
+g=&((LG*)L)->g;
+L->next=NULL;
+L->tt=8;
+g->currentwhite=bit2mask(0,5);
+L->marked=luaC_white(g);
+set2bits(L->marked,5,6);
+preinit_state(L,g);
+g->frealloc=f;
+g->ud=ud;
+g->mainthread=L;
+g->uvhead.u.l.prev=&g->uvhead;
+g->uvhead.u.l.next=&g->uvhead;
+g->GCthreshold=0;
+g->strt.size=0;
+g->strt.nuse=0;
+g->strt.hash=NULL;
+setnilvalue(registry(L));
+luaZ_initbuffer(L,&g->buff);
+g->panic=NULL;
+g->gcstate=0;
+g->rootgc=obj2gco(L);
+g->sweepstrgc=0;
+g->sweepgc=&g->rootgc;
+g->gray=NULL;
+g->grayagain=NULL;
+g->weak=NULL;
+g->tmudata=NULL;
+g->totalbytes=sizeof(LG);
+g->gcpause=200;
+g->gcstepmul=200;
+g->gcdept=0;
+for(i=0;i<(8+1);i++)g->mt[i]=NULL;
+if(luaD_rawrunprotected(L,f_luaopen,NULL)!=0){
+close_state(L);
+L=NULL;
+}
+else
+{}
+return L;
+}
+static void callallgcTM(lua_State*L,void*ud){
+UNUSED(ud);
+luaC_callGCTM(L);
+}
+static void lua_close(lua_State*L){
+L=G(L)->mainthread;
+luaF_close(L,L->stack);
+luaC_separateudata(L,1);
+L->errfunc=0;
+do{
+L->ci=L->base_ci;
+L->base=L->top=L->ci->base;
+L->nCcalls=L->baseCcalls=0;
+}while(luaD_rawrunprotected(L,callallgcTM,NULL)!=0);
+close_state(L);
+}
+#define getcode(fs,e)((fs)->f->code[(e)->u.s.info])
+#define luaK_codeAsBx(fs,o,A,sBx)luaK_codeABx(fs,o,A,(sBx)+(((1<<(9+9))-1)>>1))
+#define luaK_setmultret(fs,e)luaK_setreturns(fs,e,(-1))
+static int luaK_codeABx(FuncState*fs,OpCode o,int A,unsigned int Bx);
+static int luaK_codeABC(FuncState*fs,OpCode o,int A,int B,int C);
+static void luaK_setreturns(FuncState*fs,expdesc*e,int nresults);
+static void luaK_patchtohere(FuncState*fs,int list);
+static void luaK_concat(FuncState*fs,int*l1,int l2);
+static int currentpc(lua_State*L,CallInfo*ci){
+if(!isLua(ci))return-1;
+if(ci==L->ci)
+ci->savedpc=L->savedpc;
+return pcRel(ci->savedpc,ci_func(ci)->l.p);
+}
+static int currentline(lua_State*L,CallInfo*ci){
+int pc=currentpc(L,ci);
+if(pc<0)
+return-1;
+else
+return getline_(ci_func(ci)->l.p,pc);
+}
+static int lua_getstack(lua_State*L,int level,lua_Debug*ar){
+int status;
+CallInfo*ci;
+for(ci=L->ci;level>0&&ci>L->base_ci;ci--){
+level--;
+if(f_isLua(ci))
+level-=ci->tailcalls;
+}
+if(level==0&&ci>L->base_ci){
+status=1;
+ar->i_ci=cast_int(ci-L->base_ci);
+}
+else if(level<0){
+status=1;
+ar->i_ci=0;
+}
+else status=0;
+return status;
+}
+static Proto*getluaproto(CallInfo*ci){
+return(isLua(ci)?ci_func(ci)->l.p:NULL);
+}
+static void funcinfo(lua_Debug*ar,Closure*cl){
+if(cl->c.isC){
+ar->source="=[C]";
+ar->linedefined=-1;
+ar->lastlinedefined=-1;
+ar->what="C";
+}
+else{
+ar->source=getstr(cl->l.p->source);
+ar->linedefined=cl->l.p->linedefined;
+ar->lastlinedefined=cl->l.p->lastlinedefined;
+ar->what=(ar->linedefined==0)?"main":"Lua";
+}
+luaO_chunkid(ar->short_src,ar->source,60);
+}
+static void info_tailcall(lua_Debug*ar){
+ar->name=ar->namewhat="";
+ar->what="tail";
+ar->lastlinedefined=ar->linedefined=ar->currentline=-1;
+ar->source="=(tail call)";
+luaO_chunkid(ar->short_src,ar->source,60);
+ar->nups=0;
+}
+static void collectvalidlines(lua_State*L,Closure*f){
+if(f==NULL||f->c.isC){
+setnilvalue(L->top);
+}
+else{
+Table*t=luaH_new(L,0,0);
+int*lineinfo=f->l.p->lineinfo;
+int i;
+for(i=0;i<f->l.p->sizelineinfo;i++)
+setbvalue(luaH_setnum(L,t,lineinfo[i]),1);
+sethvalue(L,L->top,t);
+}
+incr_top(L);
+}
+static int auxgetinfo(lua_State*L,const char*what,lua_Debug*ar,
+Closure*f,CallInfo*ci){
+int status=1;
+if(f==NULL){
+info_tailcall(ar);
+return status;
+}
+for(;*what;what++){
+switch(*what){
+case'S':{
+funcinfo(ar,f);
+break;
+}
+case'l':{
+ar->currentline=(ci)?currentline(L,ci):-1;
+break;
+}
+case'u':{
+ar->nups=f->c.nupvalues;
+break;
+}
+case'n':{
+ar->namewhat=(ci)?NULL:NULL;
+if(ar->namewhat==NULL){
+ar->namewhat="";
+ar->name=NULL;
+}
+break;
+}
+case'L':
+case'f':
+break;
+default:status=0;
+}
+}
+return status;
+}
+static int lua_getinfo(lua_State*L,const char*what,lua_Debug*ar){
+int status;
+Closure*f=NULL;
+CallInfo*ci=NULL;
+if(*what=='>'){
+StkId func=L->top-1;
+luai_apicheck(L,ttisfunction(func));
+what++;
+f=clvalue(func);
+L->top--;
+}
+else if(ar->i_ci!=0){
+ci=L->base_ci+ar->i_ci;
+f=clvalue(ci->func);
+}
+status=auxgetinfo(L,what,ar,f,ci);
+if(strchr(what,'f')){
+if(f==NULL)setnilvalue(L->top);
+else setclvalue(L,L->top,f);
+incr_top(L);
+}
+if(strchr(what,'L'))
+collectvalidlines(L,f);
+return status;
+}
+static int isinstack(CallInfo*ci,const TValue*o){
+StkId p;
+for(p=ci->base;p<ci->top;p++)
+if(o==p)return 1;
+return 0;
+}
+static void luaG_typeerror(lua_State*L,const TValue*o,const char*op){
+const char*name=NULL;
+const char*t=luaT_typenames[ttype(o)];
+const char*kind=(isinstack(L->ci,o))?
+NULL:
+NULL;
+if(kind)
+luaG_runerror(L,"attempt to %s %s "LUA_QL("%s")" (a %s value)",
+op,kind,name,t);
+else
+luaG_runerror(L,"attempt to %s a %s value",op,t);
+}
+static void luaG_concaterror(lua_State*L,StkId p1,StkId p2){
+if(ttisstring(p1)||ttisnumber(p1))p1=p2;
+luaG_typeerror(L,p1,"concatenate");
+}
+static void luaG_aritherror(lua_State*L,const TValue*p1,const TValue*p2){
+TValue temp;
+if(luaV_tonumber(p1,&temp)==NULL)
+p2=p1;
+luaG_typeerror(L,p2,"perform arithmetic on");
+}
+static int luaG_ordererror(lua_State*L,const TValue*p1,const TValue*p2){
+const char*t1=luaT_typenames[ttype(p1)];
+const char*t2=luaT_typenames[ttype(p2)];
+if(t1[2]==t2[2])
+luaG_runerror(L,"attempt to compare two %s values",t1);
+else
+luaG_runerror(L,"attempt to compare %s with %s",t1,t2);
+return 0;
+}
+static void addinfo(lua_State*L,const char*msg){
+CallInfo*ci=L->ci;
+if(isLua(ci)){
+char buff[60];
+int line=currentline(L,ci);
+luaO_chunkid(buff,getstr(getluaproto(ci)->source),60);
+luaO_pushfstring(L,"%s:%d: %s",buff,line,msg);
+}
+}
+static void luaG_errormsg(lua_State*L){
+if(L->errfunc!=0){
+StkId errfunc=restorestack(L,L->errfunc);
+if(!ttisfunction(errfunc))luaD_throw(L,5);
+setobj(L,L->top,L->top-1);
+setobj(L,L->top-1,errfunc);
+incr_top(L);
+luaD_call(L,L->top-2,1);
+}
+luaD_throw(L,2);
+}
+static void luaG_runerror(lua_State*L,const char*fmt,...){
+va_list argp;
+va_start(argp,fmt);
+addinfo(L,luaO_pushvfstring(L,fmt,argp));
+va_end(argp);
+luaG_errormsg(L);
+}
+static int luaZ_fill(ZIO*z){
+size_t size;
+lua_State*L=z->L;
+const char*buff;
+buff=z->reader(L,z->data,&size);
+if(buff==NULL||size==0)return(-1);
+z->n=size-1;
+z->p=buff;
+return char2int(*(z->p++));
+}
+static void luaZ_init(lua_State*L,ZIO*z,lua_Reader reader,void*data){
+z->L=L;
+z->reader=reader;
+z->data=data;
+z->n=0;
+z->p=NULL;
+}
+static char*luaZ_openspace(lua_State*L,Mbuffer*buff,size_t n){
+if(n>buff->buffsize){
+if(n<32)n=32;
+luaZ_resizebuffer(L,buff,n);
+}
+return buff->buffer;
+}
+#define opmode(t,a,b,c,m)(((t)<<7)|((a)<<6)|((b)<<4)|((c)<<2)|(m))
+static const lu_byte luaP_opmodes[(cast(int,OP_VARARG)+1)]={
+opmode(0,1,OpArgR,OpArgN,iABC)
+,opmode(0,1,OpArgK,OpArgN,iABx)
+,opmode(0,1,OpArgU,OpArgU,iABC)
+,opmode(0,1,OpArgR,OpArgN,iABC)
+,opmode(0,1,OpArgU,OpArgN,iABC)
+,opmode(0,1,OpArgK,OpArgN,iABx)
+,opmode(0,1,OpArgR,OpArgK,iABC)
+,opmode(0,0,OpArgK,OpArgN,iABx)
+,opmode(0,0,OpArgU,OpArgN,iABC)
+,opmode(0,0,OpArgK,OpArgK,iABC)
+,opmode(0,1,OpArgU,OpArgU,iABC)
+,opmode(0,1,OpArgR,OpArgK,iABC)
+,opmode(0,1,OpArgK,OpArgK,iABC)
+,opmode(0,1,OpArgK,OpArgK,iABC)
+,opmode(0,1,OpArgK,OpArgK,iABC)
+,opmode(0,1,OpArgK,OpArgK,iABC)
+,opmode(0,1,OpArgK,OpArgK,iABC)
+,opmode(0,1,OpArgK,OpArgK,iABC)
+,opmode(0,1,OpArgR,OpArgN,iABC)
+,opmode(0,1,OpArgR,OpArgN,iABC)
+,opmode(0,1,OpArgR,OpArgN,iABC)
+,opmode(0,1,OpArgR,OpArgR,iABC)
+,opmode(0,0,OpArgR,OpArgN,iAsBx)
+,opmode(1,0,OpArgK,OpArgK,iABC)
+,opmode(1,0,OpArgK,OpArgK,iABC)
+,opmode(1,0,OpArgK,OpArgK,iABC)
+,opmode(1,1,OpArgR,OpArgU,iABC)
+,opmode(1,1,OpArgR,OpArgU,iABC)
+,opmode(0,1,OpArgU,OpArgU,iABC)
+,opmode(0,1,OpArgU,OpArgU,iABC)
+,opmode(0,0,OpArgU,OpArgN,iABC)
+,opmode(0,1,OpArgR,OpArgN,iAsBx)
+,opmode(0,1,OpArgR,OpArgN,iAsBx)
+,opmode(1,0,OpArgN,OpArgU,iABC)
+,opmode(0,0,OpArgU,OpArgU,iABC)
+,opmode(0,0,OpArgN,OpArgN,iABC)
+,opmode(0,1,OpArgU,OpArgN,iABx)
+,opmode(0,1,OpArgU,OpArgN,iABC)
+};
+#define next(ls)(ls->current=zgetc(ls->z))
+#define currIsNewline(ls)(ls->current=='\n'||ls->current=='\r')
+static const char*const luaX_tokens[]={
+"and","break","do","else","elseif",
+"end","false","for","function","if",
+"in","local","nil","not","or","repeat",
+"return","then","true","until","while",
+"..","...","==",">=","<=","~=",
+"<number>","<name>","<string>","<eof>",
+NULL
+};
+#define save_and_next(ls)(save(ls,ls->current),next(ls))
+static void save(LexState*ls,int c){
+Mbuffer*b=ls->buff;
+if(b->n+1>b->buffsize){
+size_t newsize;
+if(b->buffsize>=((size_t)(~(size_t)0)-2)/2)
+luaX_lexerror(ls,"lexical element too long",0);
+newsize=b->buffsize*2;
+luaZ_resizebuffer(ls->L,b,newsize);
+}
+b->buffer[b->n++]=cast(char,c);
+}
+static void luaX_init(lua_State*L){
+int i;
+for(i=0;i<(cast(int,TK_WHILE-257+1));i++){
+TString*ts=luaS_new(L,luaX_tokens[i]);
+luaS_fix(ts);
+ts->tsv.reserved=cast_byte(i+1);
+}
+}
+static const char*luaX_token2str(LexState*ls,int token){
+if(token<257){
+return(iscntrl(token))?luaO_pushfstring(ls->L,"char(%d)",token):
+luaO_pushfstring(ls->L,"%c",token);
+}
+else
+return luaX_tokens[token-257];
+}
+static const char*txtToken(LexState*ls,int token){
+switch(token){
+case TK_NAME:
+case TK_STRING:
+case TK_NUMBER:
+save(ls,'\0');
+return luaZ_buffer(ls->buff);
+default:
+return luaX_token2str(ls,token);
+}
+}
+static void luaX_lexerror(LexState*ls,const char*msg,int token){
+char buff[80];
+luaO_chunkid(buff,getstr(ls->source),80);
+msg=luaO_pushfstring(ls->L,"%s:%d: %s",buff,ls->linenumber,msg);
+if(token)
+luaO_pushfstring(ls->L,"%s near "LUA_QL("%s"),msg,txtToken(ls,token));
+luaD_throw(ls->L,3);
+}
+static void luaX_syntaxerror(LexState*ls,const char*msg){
+luaX_lexerror(ls,msg,ls->t.token);
+}
+static TString*luaX_newstring(LexState*ls,const char*str,size_t l){
+lua_State*L=ls->L;
+TString*ts=luaS_newlstr(L,str,l);
+TValue*o=luaH_setstr(L,ls->fs->h,ts);
+if(ttisnil(o)){
+setbvalue(o,1);
+luaC_checkGC(L);
+}
+return ts;
+}
+static void inclinenumber(LexState*ls){
+int old=ls->current;
+next(ls);
+if(currIsNewline(ls)&&ls->current!=old)
+next(ls);
+if(++ls->linenumber>=(INT_MAX-2))
+luaX_syntaxerror(ls,"chunk has too many lines");
+}
+static void luaX_setinput(lua_State*L,LexState*ls,ZIO*z,TString*source){
+ls->decpoint='.';
+ls->L=L;
+ls->lookahead.token=TK_EOS;
+ls->z=z;
+ls->fs=NULL;
+ls->linenumber=1;
+ls->lastline=1;
+ls->source=source;
+luaZ_resizebuffer(ls->L,ls->buff,32);
+next(ls);
+}
+static int check_next(LexState*ls,const char*set){
+if(!strchr(set,ls->current))
+return 0;
+save_and_next(ls);
+return 1;
+}
+static void buffreplace(LexState*ls,char from,char to){
+size_t n=luaZ_bufflen(ls->buff);
+char*p=luaZ_buffer(ls->buff);
+while(n--)
+if(p[n]==from)p[n]=to;
+}
+static void read_numeral(LexState*ls,SemInfo*seminfo){
+do{
+save_and_next(ls);
+}while(isdigit(ls->current)||ls->current=='.');
+if(check_next(ls,"Ee"))
+check_next(ls,"+-");
+while(isalnum(ls->current)||ls->current=='_')
+save_and_next(ls);
+save(ls,'\0');
+buffreplace(ls,'.',ls->decpoint);
+if(!luaO_str2d(luaZ_buffer(ls->buff),&seminfo->r))
+luaX_lexerror(ls,"malformed number",TK_NUMBER);
+}
+static int skip_sep(LexState*ls){
+int count=0;
+int s=ls->current;
+save_and_next(ls);
+while(ls->current=='='){
+save_and_next(ls);
+count++;
+}
+return(ls->current==s)?count:(-count)-1;
+}
+static void read_long_string(LexState*ls,SemInfo*seminfo,int sep){
+int cont=0;
+(void)(cont);
+save_and_next(ls);
+if(currIsNewline(ls))
+inclinenumber(ls);
+for(;;){
+switch(ls->current){
+case(-1):
+luaX_lexerror(ls,(seminfo)?"unfinished long string":
+"unfinished long comment",TK_EOS);
+break;
+case']':{
+if(skip_sep(ls)==sep){
+save_and_next(ls);
+goto endloop;
+}
+break;
+}
+case'\n':
+case'\r':{
+save(ls,'\n');
+inclinenumber(ls);
+if(!seminfo)luaZ_resetbuffer(ls->buff);
+break;
+}
+default:{
+if(seminfo)save_and_next(ls);
+else next(ls);
+}
+}
+}endloop:
+if(seminfo)
+seminfo->ts=luaX_newstring(ls,luaZ_buffer(ls->buff)+(2+sep),
+luaZ_bufflen(ls->buff)-2*(2+sep));
+}
+static void read_string(LexState*ls,int del,SemInfo*seminfo){
+save_and_next(ls);
+while(ls->current!=del){
+switch(ls->current){
+case(-1):
+luaX_lexerror(ls,"unfinished string",TK_EOS);
+continue;
+case'\n':
+case'\r':
+luaX_lexerror(ls,"unfinished string",TK_STRING);
+continue;
+case'\\':{
+int c;
+next(ls);
+switch(ls->current){
+case'a':c='\a';break;
+case'b':c='\b';break;
+case'f':c='\f';break;
+case'n':c='\n';break;
+case'r':c='\r';break;
+case't':c='\t';break;
+case'v':c='\v';break;
+case'\n':
+case'\r':save(ls,'\n');inclinenumber(ls);continue;
+case(-1):continue;
+default:{
+if(!isdigit(ls->current))
+save_and_next(ls);
+else{
+int i=0;
+c=0;
+do{
+c=10*c+(ls->current-'0');
+next(ls);
+}while(++i<3&&isdigit(ls->current));
+if(c>UCHAR_MAX)
+luaX_lexerror(ls,"escape sequence too large",TK_STRING);
+save(ls,c);
+}
+continue;
+}
+}
+save(ls,c);
+next(ls);
+continue;
+}
+default:
+save_and_next(ls);
+}
+}
+save_and_next(ls);
+seminfo->ts=luaX_newstring(ls,luaZ_buffer(ls->buff)+1,
+luaZ_bufflen(ls->buff)-2);
+}
+static int llex(LexState*ls,SemInfo*seminfo){
+luaZ_resetbuffer(ls->buff);
+for(;;){
+switch(ls->current){
+case'\n':
+case'\r':{
+inclinenumber(ls);
+continue;
+}
+case'-':{
+next(ls);
+if(ls->current!='-')return'-';
+next(ls);
+if(ls->current=='['){
+int sep=skip_sep(ls);
+luaZ_resetbuffer(ls->buff);
+if(sep>=0){
+read_long_string(ls,NULL,sep);
+luaZ_resetbuffer(ls->buff);
+continue;
+}
+}
+while(!currIsNewline(ls)&&ls->current!=(-1))
+next(ls);
+continue;
+}
+case'[':{
+int sep=skip_sep(ls);
+if(sep>=0){
+read_long_string(ls,seminfo,sep);
+return TK_STRING;
+}
+else if (sep!=-1)luaX_lexerror(ls,"invalid long string delimiter",TK_STRING);
+return'[';
+}
+case'=':{
+next(ls);
+if(ls->current!='=')return'=';
+else{next(ls);return TK_EQ;}
+}
+case'<':{
+next(ls);
+if(ls->current!='=')return'<';
+else{next(ls);return TK_LE;}
+}
+case'>':{
+next(ls);
+if(ls->current!='=')return'>';
+else{next(ls);return TK_GE;}
+}
+case'~':{
+next(ls);
+if(ls->current!='=')return'~';
+else{next(ls);return TK_NE;}
+}
+case'"':
+case'\'':{
+read_string(ls,ls->current,seminfo);
+return TK_STRING;
+}
+case'.':{
+save_and_next(ls);
+if(check_next(ls,".")){
+if(check_next(ls,"."))
+return TK_DOTS;
+else return TK_CONCAT;
+}
+else if(!isdigit(ls->current))return'.';
+else{
+read_numeral(ls,seminfo);
+return TK_NUMBER;
+}
+}
+case(-1):{
+return TK_EOS;
+}
+default:{
+if(isspace(ls->current)){
+next(ls);
+continue;
+}
+else if(isdigit(ls->current)){
+read_numeral(ls,seminfo);
+return TK_NUMBER;
+}
+else if(isalpha(ls->current)||ls->current=='_'){
+TString*ts;
+do{
+save_and_next(ls);
+}while(isalnum(ls->current)||ls->current=='_');
+ts=luaX_newstring(ls,luaZ_buffer(ls->buff),
+luaZ_bufflen(ls->buff));
+if(ts->tsv.reserved>0)
+return ts->tsv.reserved-1+257;
+else{
+seminfo->ts=ts;
+return TK_NAME;
+}
+}
+else{
+int c=ls->current;
+next(ls);
+return c;
+}
+}
+}
+}
+}
+static void luaX_next(LexState*ls){
+ls->lastline=ls->linenumber;
+if(ls->lookahead.token!=TK_EOS){
+ls->t=ls->lookahead;
+ls->lookahead.token=TK_EOS;
+}
+else
+ls->t.token=llex(ls,&ls->t.seminfo);
+}
+static void luaX_lookahead(LexState*ls){
+ls->lookahead.token=llex(ls,&ls->lookahead.seminfo);
+}
+#define hasjumps(e)((e)->t!=(e)->f)
+static int isnumeral(expdesc*e){
+return(e->k==VKNUM&&e->t==(-1)&&e->f==(-1));
+}
+static void luaK_nil(FuncState*fs,int from,int n){
+Instruction*previous;
+if(fs->pc>fs->lasttarget){
+if(fs->pc==0){
+if(from>=fs->nactvar)
+return;
+}
+else{
+previous=&fs->f->code[fs->pc-1];
+if(GET_OPCODE(*previous)==OP_LOADNIL){
+int pfrom=GETARG_A(*previous);
+int pto=GETARG_B(*previous);
+if(pfrom<=from&&from<=pto+1){
+if(from+n-1>pto)
+SETARG_B(*previous,from+n-1);
+return;
+}
+}
+}
+}
+luaK_codeABC(fs,OP_LOADNIL,from,from+n-1,0);
+}
+static int luaK_jump(FuncState*fs){
+int jpc=fs->jpc;
+int j;
+fs->jpc=(-1);
+j=luaK_codeAsBx(fs,OP_JMP,0,(-1));
+luaK_concat(fs,&j,jpc);
+return j;
+}
+static void luaK_ret(FuncState*fs,int first,int nret){
+luaK_codeABC(fs,OP_RETURN,first,nret+1,0);
+}
+static int condjump(FuncState*fs,OpCode op,int A,int B,int C){
+luaK_codeABC(fs,op,A,B,C);
+return luaK_jump(fs);
+}
+static void fixjump(FuncState*fs,int pc,int dest){
+Instruction*jmp=&fs->f->code[pc];
+int offset=dest-(pc+1);
+if(abs(offset)>(((1<<(9+9))-1)>>1))
+luaX_syntaxerror(fs->ls,"control structure too long");
+SETARG_sBx(*jmp,offset);
+}
+static int luaK_getlabel(FuncState*fs){
+fs->lasttarget=fs->pc;
+return fs->pc;
+}
+static int getjump(FuncState*fs,int pc){
+int offset=GETARG_sBx(fs->f->code[pc]);
+if(offset==(-1))
+return(-1);
+else
+return(pc+1)+offset;
+}
+static Instruction*getjumpcontrol(FuncState*fs,int pc){
+Instruction*pi=&fs->f->code[pc];
+if(pc>=1&&testTMode(GET_OPCODE(*(pi-1))))
+return pi-1;
+else
+return pi;
+}
+static int need_value(FuncState*fs,int list){
+for(;list!=(-1);list=getjump(fs,list)){
+Instruction i=*getjumpcontrol(fs,list);
+if(GET_OPCODE(i)!=OP_TESTSET)return 1;
+}
+return 0;
+}
+static int patchtestreg(FuncState*fs,int node,int reg){
+Instruction*i=getjumpcontrol(fs,node);
+if(GET_OPCODE(*i)!=OP_TESTSET)
+return 0;
+if(reg!=((1<<8)-1)&&reg!=GETARG_B(*i))
+SETARG_A(*i,reg);
+else
+*i=CREATE_ABC(OP_TEST,GETARG_B(*i),0,GETARG_C(*i));
+return 1;
+}
+static void removevalues(FuncState*fs,int list){
+for(;list!=(-1);list=getjump(fs,list))
+patchtestreg(fs,list,((1<<8)-1));
+}
+static void patchlistaux(FuncState*fs,int list,int vtarget,int reg,
+int dtarget){
+while(list!=(-1)){
+int next=getjump(fs,list);
+if(patchtestreg(fs,list,reg))
+fixjump(fs,list,vtarget);
+else
+fixjump(fs,list,dtarget);
+list=next;
+}
+}
+static void dischargejpc(FuncState*fs){
+patchlistaux(fs,fs->jpc,fs->pc,((1<<8)-1),fs->pc);
+fs->jpc=(-1);
+}
+static void luaK_patchlist(FuncState*fs,int list,int target){
+if(target==fs->pc)
+luaK_patchtohere(fs,list);
+else{
+patchlistaux(fs,list,target,((1<<8)-1),target);
+}
+}
+static void luaK_patchtohere(FuncState*fs,int list){
+luaK_getlabel(fs);
+luaK_concat(fs,&fs->jpc,list);
+}
+static void luaK_concat(FuncState*fs,int*l1,int l2){
+if(l2==(-1))return;
+else if(*l1==(-1))
+*l1=l2;
+else{
+int list=*l1;
+int next;
+while((next=getjump(fs,list))!=(-1))
+list=next;
+fixjump(fs,list,l2);
+}
+}
+static void luaK_checkstack(FuncState*fs,int n){
+int newstack=fs->freereg+n;
+if(newstack>fs->f->maxstacksize){
+if(newstack>=250)
+luaX_syntaxerror(fs->ls,"function or expression too complex");
+fs->f->maxstacksize=cast_byte(newstack);
+}
+}
+static void luaK_reserveregs(FuncState*fs,int n){
+luaK_checkstack(fs,n);
+fs->freereg+=n;
+}
+static void freereg(FuncState*fs,int reg){
+if(!ISK(reg)&&reg>=fs->nactvar){
+fs->freereg--;
+}
+}
+static void freeexp(FuncState*fs,expdesc*e){
+if(e->k==VNONRELOC)
+freereg(fs,e->u.s.info);
+}
+static int addk(FuncState*fs,TValue*k,TValue*v){
+lua_State*L=fs->L;
+TValue*idx=luaH_set(L,fs->h,k);
+Proto*f=fs->f;
+int oldsize=f->sizek;
+if(ttisnumber(idx)){
+return cast_int(nvalue(idx));
+}
+else{
+setnvalue(idx,cast_num(fs->nk));
+luaM_growvector(L,f->k,fs->nk,f->sizek,TValue,
+((1<<(9+9))-1),"constant table overflow");
+while(oldsize<f->sizek)setnilvalue(&f->k[oldsize++]);
+setobj(L,&f->k[fs->nk],v);
+luaC_barrier(L,f,v);
+return fs->nk++;
+}
+}
+static int luaK_stringK(FuncState*fs,TString*s){
+TValue o;
+setsvalue(fs->L,&o,s);
+return addk(fs,&o,&o);
+}
+static int luaK_numberK(FuncState*fs,lua_Number r){
+TValue o;
+setnvalue(&o,r);
+return addk(fs,&o,&o);
+}
+static int boolK(FuncState*fs,int b){
+TValue o;
+setbvalue(&o,b);
+return addk(fs,&o,&o);
+}
+static int nilK(FuncState*fs){
+TValue k,v;
+setnilvalue(&v);
+sethvalue(fs->L,&k,fs->h);
+return addk(fs,&k,&v);
+}
+static void luaK_setreturns(FuncState*fs,expdesc*e,int nresults){
+if(e->k==VCALL){
+SETARG_C(getcode(fs,e),nresults+1);
+}
+else if(e->k==VVARARG){
+SETARG_B(getcode(fs,e),nresults+1);
+SETARG_A(getcode(fs,e),fs->freereg);
+luaK_reserveregs(fs,1);
+}
+}
+static void luaK_setoneret(FuncState*fs,expdesc*e){
+if(e->k==VCALL){
+e->k=VNONRELOC;
+e->u.s.info=GETARG_A(getcode(fs,e));
+}
+else if(e->k==VVARARG){
+SETARG_B(getcode(fs,e),2);
+e->k=VRELOCABLE;
+}
+}
+static void luaK_dischargevars(FuncState*fs,expdesc*e){
+switch(e->k){
+case VLOCAL:{
+e->k=VNONRELOC;
+break;
+}
+case VUPVAL:{
+e->u.s.info=luaK_codeABC(fs,OP_GETUPVAL,0,e->u.s.info,0);
+e->k=VRELOCABLE;
+break;
+}
+case VGLOBAL:{
+e->u.s.info=luaK_codeABx(fs,OP_GETGLOBAL,0,e->u.s.info);
+e->k=VRELOCABLE;
+break;
+}
+case VINDEXED:{
+freereg(fs,e->u.s.aux);
+freereg(fs,e->u.s.info);
+e->u.s.info=luaK_codeABC(fs,OP_GETTABLE,0,e->u.s.info,e->u.s.aux);
+e->k=VRELOCABLE;
+break;
+}
+case VVARARG:
+case VCALL:{
+luaK_setoneret(fs,e);
+break;
+}
+default:break;
+}
+}
+static int code_label(FuncState*fs,int A,int b,int jump){
+luaK_getlabel(fs);
+return luaK_codeABC(fs,OP_LOADBOOL,A,b,jump);
+}
+static void discharge2reg(FuncState*fs,expdesc*e,int reg){
+luaK_dischargevars(fs,e);
+switch(e->k){
+case VNIL:{
+luaK_nil(fs,reg,1);
+break;
+}
+case VFALSE:case VTRUE:{
+luaK_codeABC(fs,OP_LOADBOOL,reg,e->k==VTRUE,0);
+break;
+}
+case VK:{
+luaK_codeABx(fs,OP_LOADK,reg,e->u.s.info);
+break;
+}
+case VKNUM:{
+luaK_codeABx(fs,OP_LOADK,reg,luaK_numberK(fs,e->u.nval));
+break;
+}
+case VRELOCABLE:{
+Instruction*pc=&getcode(fs,e);
+SETARG_A(*pc,reg);
+break;
+}
+case VNONRELOC:{
+if(reg!=e->u.s.info)
+luaK_codeABC(fs,OP_MOVE,reg,e->u.s.info,0);
+break;
+}
+default:{
+return;
+}
+}
+e->u.s.info=reg;
+e->k=VNONRELOC;
+}
+static void discharge2anyreg(FuncState*fs,expdesc*e){
+if(e->k!=VNONRELOC){
+luaK_reserveregs(fs,1);
+discharge2reg(fs,e,fs->freereg-1);
+}
+}
+static void exp2reg(FuncState*fs,expdesc*e,int reg){
+discharge2reg(fs,e,reg);
+if(e->k==VJMP)
+luaK_concat(fs,&e->t,e->u.s.info);
+if(hasjumps(e)){
+int final;
+int p_f=(-1);
+int p_t=(-1);
+if(need_value(fs,e->t)||need_value(fs,e->f)){
+int fj=(e->k==VJMP)?(-1):luaK_jump(fs);
+p_f=code_label(fs,reg,0,1);
+p_t=code_label(fs,reg,1,0);
+luaK_patchtohere(fs,fj);
+}
+final=luaK_getlabel(fs);
+patchlistaux(fs,e->f,final,reg,p_f);
+patchlistaux(fs,e->t,final,reg,p_t);
+}
+e->f=e->t=(-1);
+e->u.s.info=reg;
+e->k=VNONRELOC;
+}
+static void luaK_exp2nextreg(FuncState*fs,expdesc*e){
+luaK_dischargevars(fs,e);
+freeexp(fs,e);
+luaK_reserveregs(fs,1);
+exp2reg(fs,e,fs->freereg-1);
+}
+static int luaK_exp2anyreg(FuncState*fs,expdesc*e){
+luaK_dischargevars(fs,e);
+if(e->k==VNONRELOC){
+if(!hasjumps(e))return e->u.s.info;
+if(e->u.s.info>=fs->nactvar){
+exp2reg(fs,e,e->u.s.info);
+return e->u.s.info;
+}
+}
+luaK_exp2nextreg(fs,e);
+return e->u.s.info;
+}
+static void luaK_exp2val(FuncState*fs,expdesc*e){
+if(hasjumps(e))
+luaK_exp2anyreg(fs,e);
+else
+luaK_dischargevars(fs,e);
+}
+static int luaK_exp2RK(FuncState*fs,expdesc*e){
+luaK_exp2val(fs,e);
+switch(e->k){
+case VKNUM:
+case VTRUE:
+case VFALSE:
+case VNIL:{
+if(fs->nk<=((1<<(9-1))-1)){
+e->u.s.info=(e->k==VNIL)?nilK(fs):
+(e->k==VKNUM)?luaK_numberK(fs,e->u.nval):
+boolK(fs,(e->k==VTRUE));
+e->k=VK;
+return RKASK(e->u.s.info);
+}
+else break;
+}
+case VK:{
+if(e->u.s.info<=((1<<(9-1))-1))
+return RKASK(e->u.s.info);
+else break;
+}
+default:break;
+}
+return luaK_exp2anyreg(fs,e);
+}
+static void luaK_storevar(FuncState*fs,expdesc*var,expdesc*ex){
+switch(var->k){
+case VLOCAL:{
+freeexp(fs,ex);
+exp2reg(fs,ex,var->u.s.info);
+return;
+}
+case VUPVAL:{
+int e=luaK_exp2anyreg(fs,ex);
+luaK_codeABC(fs,OP_SETUPVAL,e,var->u.s.info,0);
+break;
+}
+case VGLOBAL:{
+int e=luaK_exp2anyreg(fs,ex);
+luaK_codeABx(fs,OP_SETGLOBAL,e,var->u.s.info);
+break;
+}
+case VINDEXED:{
+int e=luaK_exp2RK(fs,ex);
+luaK_codeABC(fs,OP_SETTABLE,var->u.s.info,var->u.s.aux,e);
+break;
+}
+default:{
+break;
+}
+}
+freeexp(fs,ex);
+}
+static void luaK_self(FuncState*fs,expdesc*e,expdesc*key){
+int func;
+luaK_exp2anyreg(fs,e);
+freeexp(fs,e);
+func=fs->freereg;
+luaK_reserveregs(fs,2);
+luaK_codeABC(fs,OP_SELF,func,e->u.s.info,luaK_exp2RK(fs,key));
+freeexp(fs,key);
+e->u.s.info=func;
+e->k=VNONRELOC;
+}
+static void invertjump(FuncState*fs,expdesc*e){
+Instruction*pc=getjumpcontrol(fs,e->u.s.info);
+SETARG_A(*pc,!(GETARG_A(*pc)));
+}
+static int jumponcond(FuncState*fs,expdesc*e,int cond){
+if(e->k==VRELOCABLE){
+Instruction ie=getcode(fs,e);
+if(GET_OPCODE(ie)==OP_NOT){
+fs->pc--;
+return condjump(fs,OP_TEST,GETARG_B(ie),0,!cond);
+}
+}
+discharge2anyreg(fs,e);
+freeexp(fs,e);
+return condjump(fs,OP_TESTSET,((1<<8)-1),e->u.s.info,cond);
+}
+static void luaK_goiftrue(FuncState*fs,expdesc*e){
+int pc;
+luaK_dischargevars(fs,e);
+switch(e->k){
+case VK:case VKNUM:case VTRUE:{
+pc=(-1);
+break;
+}
+case VJMP:{
+invertjump(fs,e);
+pc=e->u.s.info;
+break;
+}
+default:{
+pc=jumponcond(fs,e,0);
+break;
+}
+}
+luaK_concat(fs,&e->f,pc);
+luaK_patchtohere(fs,e->t);
+e->t=(-1);
+}
+static void luaK_goiffalse(FuncState*fs,expdesc*e){
+int pc;
+luaK_dischargevars(fs,e);
+switch(e->k){
+case VNIL:case VFALSE:{
+pc=(-1);
+break;
+}
+case VJMP:{
+pc=e->u.s.info;
+break;
+}
+default:{
+pc=jumponcond(fs,e,1);
+break;
+}
+}
+luaK_concat(fs,&e->t,pc);
+luaK_patchtohere(fs,e->f);
+e->f=(-1);
+}
+static void codenot(FuncState*fs,expdesc*e){
+luaK_dischargevars(fs,e);
+switch(e->k){
+case VNIL:case VFALSE:{
+e->k=VTRUE;
+break;
+}
+case VK:case VKNUM:case VTRUE:{
+e->k=VFALSE;
+break;
+}
+case VJMP:{
+invertjump(fs,e);
+break;
+}
+case VRELOCABLE:
+case VNONRELOC:{
+discharge2anyreg(fs,e);
+freeexp(fs,e);
+e->u.s.info=luaK_codeABC(fs,OP_NOT,0,e->u.s.info,0);
+e->k=VRELOCABLE;
+break;
+}
+default:{
+break;
+}
+}
+{int temp=e->f;e->f=e->t;e->t=temp;}
+removevalues(fs,e->f);
+removevalues(fs,e->t);
+}
+static void luaK_indexed(FuncState*fs,expdesc*t,expdesc*k){
+t->u.s.aux=luaK_exp2RK(fs,k);
+t->k=VINDEXED;
+}
+static int constfolding(OpCode op,expdesc*e1,expdesc*e2){
+lua_Number v1,v2,r;
+if(!isnumeral(e1)||!isnumeral(e2))return 0;
+v1=e1->u.nval;
+v2=e2->u.nval;
+switch(op){
+case OP_ADD:r=luai_numadd(v1,v2);break;
+case OP_SUB:r=luai_numsub(v1,v2);break;
+case OP_MUL:r=luai_nummul(v1,v2);break;
+case OP_DIV:
+if(v2==0)return 0;
+r=luai_numdiv(v1,v2);break;
+case OP_MOD:
+if(v2==0)return 0;
+r=luai_nummod(v1,v2);break;
+case OP_POW:r=luai_numpow(v1,v2);break;
+case OP_UNM:r=luai_numunm(v1);break;
+case OP_LEN:return 0;
+default:r=0;break;
+}
+if(luai_numisnan(r))return 0;
+e1->u.nval=r;
+return 1;
+}
+static void codearith(FuncState*fs,OpCode op,expdesc*e1,expdesc*e2){
+if(constfolding(op,e1,e2))
+return;
+else{
+int o2=(op!=OP_UNM&&op!=OP_LEN)?luaK_exp2RK(fs,e2):0;
+int o1=luaK_exp2RK(fs,e1);
+if(o1>o2){
+freeexp(fs,e1);
+freeexp(fs,e2);
+}
+else{
+freeexp(fs,e2);
+freeexp(fs,e1);
+}
+e1->u.s.info=luaK_codeABC(fs,op,0,o1,o2);
+e1->k=VRELOCABLE;
+}
+}
+static void codecomp(FuncState*fs,OpCode op,int cond,expdesc*e1,
+expdesc*e2){
+int o1=luaK_exp2RK(fs,e1);
+int o2=luaK_exp2RK(fs,e2);
+freeexp(fs,e2);
+freeexp(fs,e1);
+if(cond==0&&op!=OP_EQ){
+int temp;
+temp=o1;o1=o2;o2=temp;
+cond=1;
+}
+e1->u.s.info=condjump(fs,op,cond,o1,o2);
+e1->k=VJMP;
+}
+static void luaK_prefix(FuncState*fs,UnOpr op,expdesc*e){
+expdesc e2;
+e2.t=e2.f=(-1);e2.k=VKNUM;e2.u.nval=0;
+switch(op){
+case OPR_MINUS:{
+if(!isnumeral(e))
+luaK_exp2anyreg(fs,e);
+codearith(fs,OP_UNM,e,&e2);
+break;
+}
+case OPR_NOT:codenot(fs,e);break;
+case OPR_LEN:{
+luaK_exp2anyreg(fs,e);
+codearith(fs,OP_LEN,e,&e2);
+break;
+}
+default:;
+}
+}
+static void luaK_infix(FuncState*fs,BinOpr op,expdesc*v){
+switch(op){
+case OPR_AND:{
+luaK_goiftrue(fs,v);
+break;
+}
+case OPR_OR:{
+luaK_goiffalse(fs,v);
+break;
+}
+case OPR_CONCAT:{
+luaK_exp2nextreg(fs,v);
+break;
+}
+case OPR_ADD:case OPR_SUB:case OPR_MUL:case OPR_DIV:
+case OPR_MOD:case OPR_POW:{
+if(!isnumeral(v))luaK_exp2RK(fs,v);
+break;
+}
+default:{
+luaK_exp2RK(fs,v);
+break;
+}
+}
+}
+static void luaK_posfix(FuncState*fs,BinOpr op,expdesc*e1,expdesc*e2){
+switch(op){
+case OPR_AND:{
+luaK_dischargevars(fs,e2);
+luaK_concat(fs,&e2->f,e1->f);
+*e1=*e2;
+break;
+}
+case OPR_OR:{
+luaK_dischargevars(fs,e2);
+luaK_concat(fs,&e2->t,e1->t);
+*e1=*e2;
+break;
+}
+case OPR_CONCAT:{
+luaK_exp2val(fs,e2);
+if(e2->k==VRELOCABLE&&GET_OPCODE(getcode(fs,e2))==OP_CONCAT){
+freeexp(fs,e1);
+SETARG_B(getcode(fs,e2),e1->u.s.info);
+e1->k=VRELOCABLE;e1->u.s.info=e2->u.s.info;
+}
+else{
+luaK_exp2nextreg(fs,e2);
+codearith(fs,OP_CONCAT,e1,e2);
+}
+break;
+}
+case OPR_ADD:codearith(fs,OP_ADD,e1,e2);break;
+case OPR_SUB:codearith(fs,OP_SUB,e1,e2);break;
+case OPR_MUL:codearith(fs,OP_MUL,e1,e2);break;
+case OPR_DIV:codearith(fs,OP_DIV,e1,e2);break;
+case OPR_MOD:codearith(fs,OP_MOD,e1,e2);break;
+case OPR_POW:codearith(fs,OP_POW,e1,e2);break;
+case OPR_EQ:codecomp(fs,OP_EQ,1,e1,e2);break;
+case OPR_NE:codecomp(fs,OP_EQ,0,e1,e2);break;
+case OPR_LT:codecomp(fs,OP_LT,1,e1,e2);break;
+case OPR_LE:codecomp(fs,OP_LE,1,e1,e2);break;
+case OPR_GT:codecomp(fs,OP_LT,0,e1,e2);break;
+case OPR_GE:codecomp(fs,OP_LE,0,e1,e2);break;
+default:;
+}
+}
+static void luaK_fixline(FuncState*fs,int line){
+fs->f->lineinfo[fs->pc-1]=line;
+}
+static int luaK_code(FuncState*fs,Instruction i,int line){
+Proto*f=fs->f;
+dischargejpc(fs);
+luaM_growvector(fs->L,f->code,fs->pc,f->sizecode,Instruction,
+(INT_MAX-2),"code size overflow");
+f->code[fs->pc]=i;
+luaM_growvector(fs->L,f->lineinfo,fs->pc,f->sizelineinfo,int,
+(INT_MAX-2),"code size overflow");
+f->lineinfo[fs->pc]=line;
+return fs->pc++;
+}
+static int luaK_codeABC(FuncState*fs,OpCode o,int a,int b,int c){
+return luaK_code(fs,CREATE_ABC(o,a,b,c),fs->ls->lastline);
+}
+static int luaK_codeABx(FuncState*fs,OpCode o,int a,unsigned int bc){
+return luaK_code(fs,CREATE_ABx(o,a,bc),fs->ls->lastline);
+}
+static void luaK_setlist(FuncState*fs,int base,int nelems,int tostore){
+int c=(nelems-1)/50+1;
+int b=(tostore==(-1))?0:tostore;
+if(c<=((1<<9)-1))
+luaK_codeABC(fs,OP_SETLIST,base,b,c);
+else{
+luaK_codeABC(fs,OP_SETLIST,base,b,0);
+luaK_code(fs,cast(Instruction,c),fs->ls->lastline);
+}
+fs->freereg=base+1;
+}
+#define hasmultret(k)((k)==VCALL||(k)==VVARARG)
+#define getlocvar(fs,i)((fs)->f->locvars[(fs)->actvar[i]])
+#define luaY_checklimit(fs,v,l,m)if((v)>(l))errorlimit(fs,l,m)
+typedef struct BlockCnt{
+struct BlockCnt*previous;
+int breaklist;
+lu_byte nactvar;
+lu_byte upval;
+lu_byte isbreakable;
+}BlockCnt;
+static void chunk(LexState*ls);
+static void expr(LexState*ls,expdesc*v);
+static void anchor_token(LexState*ls){
+if(ls->t.token==TK_NAME||ls->t.token==TK_STRING){
+TString*ts=ls->t.seminfo.ts;
+luaX_newstring(ls,getstr(ts),ts->tsv.len);
+}
+}
+static void error_expected(LexState*ls,int token){
+luaX_syntaxerror(ls,
+luaO_pushfstring(ls->L,LUA_QL("%s")" expected",luaX_token2str(ls,token)));
+}
+static void errorlimit(FuncState*fs,int limit,const char*what){
+const char*msg=(fs->f->linedefined==0)?
+luaO_pushfstring(fs->L,"main function has more than %d %s",limit,what):
+luaO_pushfstring(fs->L,"function at line %d has more than %d %s",
+fs->f->linedefined,limit,what);
+luaX_lexerror(fs->ls,msg,0);
+}
+static int testnext(LexState*ls,int c){
+if(ls->t.token==c){
+luaX_next(ls);
+return 1;
+}
+else return 0;
+}
+static void check(LexState*ls,int c){
+if(ls->t.token!=c)
+error_expected(ls,c);
+}
+static void checknext(LexState*ls,int c){
+check(ls,c);
+luaX_next(ls);
+}
+#define check_condition(ls,c,msg){if(!(c))luaX_syntaxerror(ls,msg);}
+static void check_match(LexState*ls,int what,int who,int where){
+if(!testnext(ls,what)){
+if(where==ls->linenumber)
+error_expected(ls,what);
+else{
+luaX_syntaxerror(ls,luaO_pushfstring(ls->L,
+LUA_QL("%s")" expected (to close "LUA_QL("%s")" at line %d)",
+luaX_token2str(ls,what),luaX_token2str(ls,who),where));
+}
+}
+}
+static TString*str_checkname(LexState*ls){
+TString*ts;
+check(ls,TK_NAME);
+ts=ls->t.seminfo.ts;
+luaX_next(ls);
+return ts;
+}
+static void init_exp(expdesc*e,expkind k,int i){
+e->f=e->t=(-1);
+e->k=k;
+e->u.s.info=i;
+}
+static void codestring(LexState*ls,expdesc*e,TString*s){
+init_exp(e,VK,luaK_stringK(ls->fs,s));
+}
+static void checkname(LexState*ls,expdesc*e){
+codestring(ls,e,str_checkname(ls));
+}
+static int registerlocalvar(LexState*ls,TString*varname){
+FuncState*fs=ls->fs;
+Proto*f=fs->f;
+int oldsize=f->sizelocvars;
+luaM_growvector(ls->L,f->locvars,fs->nlocvars,f->sizelocvars,
+LocVar,SHRT_MAX,"too many local variables");
+while(oldsize<f->sizelocvars)f->locvars[oldsize++].varname=NULL;
+f->locvars[fs->nlocvars].varname=varname;
+luaC_objbarrier(ls->L,f,varname);
+return fs->nlocvars++;
+}
+#define new_localvarliteral(ls,v,n)new_localvar(ls,luaX_newstring(ls,""v,(sizeof(v)/sizeof(char))-1),n)
+static void new_localvar(LexState*ls,TString*name,int n){
+FuncState*fs=ls->fs;
+luaY_checklimit(fs,fs->nactvar+n+1,200,"local variables");
+fs->actvar[fs->nactvar+n]=cast(unsigned short,registerlocalvar(ls,name));
+}
+static void adjustlocalvars(LexState*ls,int nvars){
+FuncState*fs=ls->fs;
+fs->nactvar=cast_byte(fs->nactvar+nvars);
+for(;nvars;nvars--){
+getlocvar(fs,fs->nactvar-nvars).startpc=fs->pc;
+}
+}
+static void removevars(LexState*ls,int tolevel){
+FuncState*fs=ls->fs;
+while(fs->nactvar>tolevel)
+getlocvar(fs,--fs->nactvar).endpc=fs->pc;
+}
+static int indexupvalue(FuncState*fs,TString*name,expdesc*v){
+int i;
+Proto*f=fs->f;
+int oldsize=f->sizeupvalues;
+for(i=0;i<f->nups;i++){
+if(fs->upvalues[i].k==v->k&&fs->upvalues[i].info==v->u.s.info){
+return i;
+}
+}
+luaY_checklimit(fs,f->nups+1,60,"upvalues");
+luaM_growvector(fs->L,f->upvalues,f->nups,f->sizeupvalues,
+TString*,(INT_MAX-2),"");
+while(oldsize<f->sizeupvalues)f->upvalues[oldsize++]=NULL;
+f->upvalues[f->nups]=name;
+luaC_objbarrier(fs->L,f,name);
+fs->upvalues[f->nups].k=cast_byte(v->k);
+fs->upvalues[f->nups].info=cast_byte(v->u.s.info);
+return f->nups++;
+}
+static int searchvar(FuncState*fs,TString*n){
+int i;
+for(i=fs->nactvar-1;i>=0;i--){
+if(n==getlocvar(fs,i).varname)
+return i;
+}
+return-1;
+}
+static void markupval(FuncState*fs,int level){
+BlockCnt*bl=fs->bl;
+while(bl&&bl->nactvar>level)bl=bl->previous;
+if(bl)bl->upval=1;
+}
+static int singlevaraux(FuncState*fs,TString*n,expdesc*var,int base){
+if(fs==NULL){
+init_exp(var,VGLOBAL,((1<<8)-1));
+return VGLOBAL;
+}
+else{
+int v=searchvar(fs,n);
+if(v>=0){
+init_exp(var,VLOCAL,v);
+if(!base)
+markupval(fs,v);
+return VLOCAL;
+}
+else{
+if(singlevaraux(fs->prev,n,var,0)==VGLOBAL)
+return VGLOBAL;
+var->u.s.info=indexupvalue(fs,n,var);
+var->k=VUPVAL;
+return VUPVAL;
+}
+}
+}
+static void singlevar(LexState*ls,expdesc*var){
+TString*varname=str_checkname(ls);
+FuncState*fs=ls->fs;
+if(singlevaraux(fs,varname,var,1)==VGLOBAL)
+var->u.s.info=luaK_stringK(fs,varname);
+}
+static void adjust_assign(LexState*ls,int nvars,int nexps,expdesc*e){
+FuncState*fs=ls->fs;
+int extra=nvars-nexps;
+if(hasmultret(e->k)){
+extra++;
+if(extra<0)extra=0;
+luaK_setreturns(fs,e,extra);
+if(extra>1)luaK_reserveregs(fs,extra-1);
+}
+else{
+if(e->k!=VVOID)luaK_exp2nextreg(fs,e);
+if(extra>0){
+int reg=fs->freereg;
+luaK_reserveregs(fs,extra);
+luaK_nil(fs,reg,extra);
+}
+}
+}
+static void enterlevel(LexState*ls){
+if(++ls->L->nCcalls>200)
+luaX_lexerror(ls,"chunk has too many syntax levels",0);
+}
+#define leavelevel(ls)((ls)->L->nCcalls--)
+static void enterblock(FuncState*fs,BlockCnt*bl,lu_byte isbreakable){
+bl->breaklist=(-1);
+bl->isbreakable=isbreakable;
+bl->nactvar=fs->nactvar;
+bl->upval=0;
+bl->previous=fs->bl;
+fs->bl=bl;
+}
+static void leaveblock(FuncState*fs){
+BlockCnt*bl=fs->bl;
+fs->bl=bl->previous;
+removevars(fs->ls,bl->nactvar);
+if(bl->upval)
+luaK_codeABC(fs,OP_CLOSE,bl->nactvar,0,0);
+fs->freereg=fs->nactvar;
+luaK_patchtohere(fs,bl->breaklist);
+}
+static void pushclosure(LexState*ls,FuncState*func,expdesc*v){
+FuncState*fs=ls->fs;
+Proto*f=fs->f;
+int oldsize=f->sizep;
+int i;
+luaM_growvector(ls->L,f->p,fs->np,f->sizep,Proto*,
+((1<<(9+9))-1),"constant table overflow");
+while(oldsize<f->sizep)f->p[oldsize++]=NULL;
+f->p[fs->np++]=func->f;
+luaC_objbarrier(ls->L,f,func->f);
+init_exp(v,VRELOCABLE,luaK_codeABx(fs,OP_CLOSURE,0,fs->np-1));
+for(i=0;i<func->f->nups;i++){
+OpCode o=(func->upvalues[i].k==VLOCAL)?OP_MOVE:OP_GETUPVAL;
+luaK_codeABC(fs,o,0,func->upvalues[i].info,0);
+}
+}
+static void open_func(LexState*ls,FuncState*fs){
+lua_State*L=ls->L;
+Proto*f=luaF_newproto(L);
+fs->f=f;
+fs->prev=ls->fs;
+fs->ls=ls;
+fs->L=L;
+ls->fs=fs;
+fs->pc=0;
+fs->lasttarget=-1;
+fs->jpc=(-1);
+fs->freereg=0;
+fs->nk=0;
+fs->np=0;
+fs->nlocvars=0;
+fs->nactvar=0;
+fs->bl=NULL;
+f->source=ls->source;
+f->maxstacksize=2;
+fs->h=luaH_new(L,0,0);
+sethvalue(L,L->top,fs->h);
+incr_top(L);
+setptvalue(L,L->top,f);
+incr_top(L);
+}
+static void close_func(LexState*ls){
+lua_State*L=ls->L;
+FuncState*fs=ls->fs;
+Proto*f=fs->f;
+removevars(ls,0);
+luaK_ret(fs,0,0);
+luaM_reallocvector(L,f->code,f->sizecode,fs->pc,Instruction);
+f->sizecode=fs->pc;
+luaM_reallocvector(L,f->lineinfo,f->sizelineinfo,fs->pc,int);
+f->sizelineinfo=fs->pc;
+luaM_reallocvector(L,f->k,f->sizek,fs->nk,TValue);
+f->sizek=fs->nk;
+luaM_reallocvector(L,f->p,f->sizep,fs->np,Proto*);
+f->sizep=fs->np;
+luaM_reallocvector(L,f->locvars,f->sizelocvars,fs->nlocvars,LocVar);
+f->sizelocvars=fs->nlocvars;
+luaM_reallocvector(L,f->upvalues,f->sizeupvalues,f->nups,TString*);
+f->sizeupvalues=f->nups;
+ls->fs=fs->prev;
+if(fs)anchor_token(ls);
+L->top-=2;
+}
+static Proto*luaY_parser(lua_State*L,ZIO*z,Mbuffer*buff,const char*name){
+struct LexState lexstate;
+struct FuncState funcstate;
+lexstate.buff=buff;
+luaX_setinput(L,&lexstate,z,luaS_new(L,name));
+open_func(&lexstate,&funcstate);
+funcstate.f->is_vararg=2;
+luaX_next(&lexstate);
+chunk(&lexstate);
+check(&lexstate,TK_EOS);
+close_func(&lexstate);
+return funcstate.f;
+}
+static void field(LexState*ls,expdesc*v){
+FuncState*fs=ls->fs;
+expdesc key;
+luaK_exp2anyreg(fs,v);
+luaX_next(ls);
+checkname(ls,&key);
+luaK_indexed(fs,v,&key);
+}
+static void yindex(LexState*ls,expdesc*v){
+luaX_next(ls);
+expr(ls,v);
+luaK_exp2val(ls->fs,v);
+checknext(ls,']');
+}
+struct ConsControl{
+expdesc v;
+expdesc*t;
+int nh;
+int na;
+int tostore;
+};
+static void recfield(LexState*ls,struct ConsControl*cc){
+FuncState*fs=ls->fs;
+int reg=ls->fs->freereg;
+expdesc key,val;
+int rkkey;
+if(ls->t.token==TK_NAME){
+luaY_checklimit(fs,cc->nh,(INT_MAX-2),"items in a constructor");
+checkname(ls,&key);
+}
+else
+yindex(ls,&key);
+cc->nh++;
+checknext(ls,'=');
+rkkey=luaK_exp2RK(fs,&key);
+expr(ls,&val);
+luaK_codeABC(fs,OP_SETTABLE,cc->t->u.s.info,rkkey,luaK_exp2RK(fs,&val));
+fs->freereg=reg;
+}
+static void closelistfield(FuncState*fs,struct ConsControl*cc){
+if(cc->v.k==VVOID)return;
+luaK_exp2nextreg(fs,&cc->v);
+cc->v.k=VVOID;
+if(cc->tostore==50){
+luaK_setlist(fs,cc->t->u.s.info,cc->na,cc->tostore);
+cc->tostore=0;
+}
+}
+static void lastlistfield(FuncState*fs,struct ConsControl*cc){
+if(cc->tostore==0)return;
+if(hasmultret(cc->v.k)){
+luaK_setmultret(fs,&cc->v);
+luaK_setlist(fs,cc->t->u.s.info,cc->na,(-1));
+cc->na--;
+}
+else{
+if(cc->v.k!=VVOID)
+luaK_exp2nextreg(fs,&cc->v);
+luaK_setlist(fs,cc->t->u.s.info,cc->na,cc->tostore);
+}
+}
+static void listfield(LexState*ls,struct ConsControl*cc){
+expr(ls,&cc->v);
+luaY_checklimit(ls->fs,cc->na,(INT_MAX-2),"items in a constructor");
+cc->na++;
+cc->tostore++;
+}
+static void constructor(LexState*ls,expdesc*t){
+FuncState*fs=ls->fs;
+int line=ls->linenumber;
+int pc=luaK_codeABC(fs,OP_NEWTABLE,0,0,0);
+struct ConsControl cc;
+cc.na=cc.nh=cc.tostore=0;
+cc.t=t;
+init_exp(t,VRELOCABLE,pc);
+init_exp(&cc.v,VVOID,0);
+luaK_exp2nextreg(ls->fs,t);
+checknext(ls,'{');
+do{
+if(ls->t.token=='}')break;
+closelistfield(fs,&cc);
+switch(ls->t.token){
+case TK_NAME:{
+luaX_lookahead(ls);
+if(ls->lookahead.token!='=')
+listfield(ls,&cc);
+else
+recfield(ls,&cc);
+break;
+}
+case'[':{
+recfield(ls,&cc);
+break;
+}
+default:{
+listfield(ls,&cc);
+break;
+}
+}
+}while(testnext(ls,',')||testnext(ls,';'));
+check_match(ls,'}','{',line);
+lastlistfield(fs,&cc);
+SETARG_B(fs->f->code[pc],luaO_int2fb(cc.na));
+SETARG_C(fs->f->code[pc],luaO_int2fb(cc.nh));
+}
+static void parlist(LexState*ls){
+FuncState*fs=ls->fs;
+Proto*f=fs->f;
+int nparams=0;
+f->is_vararg=0;
+if(ls->t.token!=')'){
+do{
+switch(ls->t.token){
+case TK_NAME:{
+new_localvar(ls,str_checkname(ls),nparams++);
+break;
+}
+case TK_DOTS:{
+luaX_next(ls);
+f->is_vararg|=2;
+break;
+}
+default:luaX_syntaxerror(ls,"<name> or "LUA_QL("...")" expected");
+}
+}while(!f->is_vararg&&testnext(ls,','));
+}
+adjustlocalvars(ls,nparams);
+f->numparams=cast_byte(fs->nactvar-(f->is_vararg&1));
+luaK_reserveregs(fs,fs->nactvar);
+}
+static void body(LexState*ls,expdesc*e,int needself,int line){
+FuncState new_fs;
+open_func(ls,&new_fs);
+new_fs.f->linedefined=line;
+checknext(ls,'(');
+if(needself){
+new_localvarliteral(ls,"self",0);
+adjustlocalvars(ls,1);
+}
+parlist(ls);
+checknext(ls,')');
+chunk(ls);
+new_fs.f->lastlinedefined=ls->linenumber;
+check_match(ls,TK_END,TK_FUNCTION,line);
+close_func(ls);
+pushclosure(ls,&new_fs,e);
+}
+static int explist1(LexState*ls,expdesc*v){
+int n=1;
+expr(ls,v);
+while(testnext(ls,',')){
+luaK_exp2nextreg(ls->fs,v);
+expr(ls,v);
+n++;
+}
+return n;
+}
+static void funcargs(LexState*ls,expdesc*f){
+FuncState*fs=ls->fs;
+expdesc args;
+int base,nparams;
+int line=ls->linenumber;
+switch(ls->t.token){
+case'(':{
+if(line!=ls->lastline)
+luaX_syntaxerror(ls,"ambiguous syntax (function call x new statement)");
+luaX_next(ls);
+if(ls->t.token==')')
+args.k=VVOID;
+else{
+explist1(ls,&args);
+luaK_setmultret(fs,&args);
+}
+check_match(ls,')','(',line);
+break;
+}
+case'{':{
+constructor(ls,&args);
+break;
+}
+case TK_STRING:{
+codestring(ls,&args,ls->t.seminfo.ts);
+luaX_next(ls);
+break;
+}
+default:{
+luaX_syntaxerror(ls,"function arguments expected");
+return;
+}
+}
+base=f->u.s.info;
+if(hasmultret(args.k))
+nparams=(-1);
+else{
+if(args.k!=VVOID)
+luaK_exp2nextreg(fs,&args);
+nparams=fs->freereg-(base+1);
+}
+init_exp(f,VCALL,luaK_codeABC(fs,OP_CALL,base,nparams+1,2));
+luaK_fixline(fs,line);
+fs->freereg=base+1;
+}
+static void prefixexp(LexState*ls,expdesc*v){
+switch(ls->t.token){
+case'(':{
+int line=ls->linenumber;
+luaX_next(ls);
+expr(ls,v);
+check_match(ls,')','(',line);
+luaK_dischargevars(ls->fs,v);
+return;
+}
+case TK_NAME:{
+singlevar(ls,v);
+return;
+}
+default:{
+luaX_syntaxerror(ls,"unexpected symbol");
+return;
+}
+}
+}
+static void primaryexp(LexState*ls,expdesc*v){
+FuncState*fs=ls->fs;
+prefixexp(ls,v);
+for(;;){
+switch(ls->t.token){
+case'.':{
+field(ls,v);
+break;
+}
+case'[':{
+expdesc key;
+luaK_exp2anyreg(fs,v);
+yindex(ls,&key);
+luaK_indexed(fs,v,&key);
+break;
+}
+case':':{
+expdesc key;
+luaX_next(ls);
+checkname(ls,&key);
+luaK_self(fs,v,&key);
+funcargs(ls,v);
+break;
+}
+case'(':case TK_STRING:case'{':{
+luaK_exp2nextreg(fs,v);
+funcargs(ls,v);
+break;
+}
+default:return;
+}
+}
+}
+static void simpleexp(LexState*ls,expdesc*v){
+switch(ls->t.token){
+case TK_NUMBER:{
+init_exp(v,VKNUM,0);
+v->u.nval=ls->t.seminfo.r;
+break;
+}
+case TK_STRING:{
+codestring(ls,v,ls->t.seminfo.ts);
+break;
+}
+case TK_NIL:{
+init_exp(v,VNIL,0);
+break;
+}
+case TK_TRUE:{
+init_exp(v,VTRUE,0);
+break;
+}
+case TK_FALSE:{
+init_exp(v,VFALSE,0);
+break;
+}
+case TK_DOTS:{
+FuncState*fs=ls->fs;
+check_condition(ls,fs->f->is_vararg,
+"cannot use "LUA_QL("...")" outside a vararg function");
+fs->f->is_vararg&=~4;
+init_exp(v,VVARARG,luaK_codeABC(fs,OP_VARARG,0,1,0));
+break;
+}
+case'{':{
+constructor(ls,v);
+return;
+}
+case TK_FUNCTION:{
+luaX_next(ls);
+body(ls,v,0,ls->linenumber);
+return;
+}
+default:{
+primaryexp(ls,v);
+return;
+}
+}
+luaX_next(ls);
+}
+static UnOpr getunopr(int op){
+switch(op){
+case TK_NOT:return OPR_NOT;
+case'-':return OPR_MINUS;
+case'#':return OPR_LEN;
+default:return OPR_NOUNOPR;
+}
+}
+static BinOpr getbinopr(int op){
+switch(op){
+case'+':return OPR_ADD;
+case'-':return OPR_SUB;
+case'*':return OPR_MUL;
+case'/':return OPR_DIV;
+case'%':return OPR_MOD;
+case'^':return OPR_POW;
+case TK_CONCAT:return OPR_CONCAT;
+case TK_NE:return OPR_NE;
+case TK_EQ:return OPR_EQ;
+case'<':return OPR_LT;
+case TK_LE:return OPR_LE;
+case'>':return OPR_GT;
+case TK_GE:return OPR_GE;
+case TK_AND:return OPR_AND;
+case TK_OR:return OPR_OR;
+default:return OPR_NOBINOPR;
+}
+}
+static const struct{
+lu_byte left;
+lu_byte right;
+}priority[]={
+{6,6},{6,6},{7,7},{7,7},{7,7},
+{10,9},{5,4},
+{3,3},{3,3},
+{3,3},{3,3},{3,3},{3,3},
+{2,2},{1,1}
+};
+static BinOpr subexpr(LexState*ls,expdesc*v,unsigned int limit){
+BinOpr op;
+UnOpr uop;
+enterlevel(ls);
+uop=getunopr(ls->t.token);
+if(uop!=OPR_NOUNOPR){
+luaX_next(ls);
+subexpr(ls,v,8);
+luaK_prefix(ls->fs,uop,v);
+}
+else simpleexp(ls,v);
+op=getbinopr(ls->t.token);
+while(op!=OPR_NOBINOPR&&priority[op].left>limit){
+expdesc v2;
+BinOpr nextop;
+luaX_next(ls);
+luaK_infix(ls->fs,op,v);
+nextop=subexpr(ls,&v2,priority[op].right);
+luaK_posfix(ls->fs,op,v,&v2);
+op=nextop;
+}
+leavelevel(ls);
+return op;
+}
+static void expr(LexState*ls,expdesc*v){
+subexpr(ls,v,0);
+}
+static int block_follow(int token){
+switch(token){
+case TK_ELSE:case TK_ELSEIF:case TK_END:
+case TK_UNTIL:case TK_EOS:
+return 1;
+default:return 0;
+}
+}
+static void block(LexState*ls){
+FuncState*fs=ls->fs;
+BlockCnt bl;
+enterblock(fs,&bl,0);
+chunk(ls);
+leaveblock(fs);
+}
+struct LHS_assign{
+struct LHS_assign*prev;
+expdesc v;
+};
+static void check_conflict(LexState*ls,struct LHS_assign*lh,expdesc*v){
+FuncState*fs=ls->fs;
+int extra=fs->freereg;
+int conflict=0;
+for(;lh;lh=lh->prev){
+if(lh->v.k==VINDEXED){
+if(lh->v.u.s.info==v->u.s.info){
+conflict=1;
+lh->v.u.s.info=extra;
+}
+if(lh->v.u.s.aux==v->u.s.info){
+conflict=1;
+lh->v.u.s.aux=extra;
+}
+}
+}
+if(conflict){
+luaK_codeABC(fs,OP_MOVE,fs->freereg,v->u.s.info,0);
+luaK_reserveregs(fs,1);
+}
+}
+static void assignment(LexState*ls,struct LHS_assign*lh,int nvars){
+expdesc e;
+check_condition(ls,VLOCAL<=lh->v.k&&lh->v.k<=VINDEXED,
+"syntax error");
+if(testnext(ls,',')){
+struct LHS_assign nv;
+nv.prev=lh;
+primaryexp(ls,&nv.v);
+if(nv.v.k==VLOCAL)
+check_conflict(ls,lh,&nv.v);
+luaY_checklimit(ls->fs,nvars,200-ls->L->nCcalls,
+"variables in assignment");
+assignment(ls,&nv,nvars+1);
+}
+else{
+int nexps;
+checknext(ls,'=');
+nexps=explist1(ls,&e);
+if(nexps!=nvars){
+adjust_assign(ls,nvars,nexps,&e);
+if(nexps>nvars)
+ls->fs->freereg-=nexps-nvars;
+}
+else{
+luaK_setoneret(ls->fs,&e);
+luaK_storevar(ls->fs,&lh->v,&e);
+return;
+}
+}
+init_exp(&e,VNONRELOC,ls->fs->freereg-1);
+luaK_storevar(ls->fs,&lh->v,&e);
+}
+static int cond(LexState*ls){
+expdesc v;
+expr(ls,&v);
+if(v.k==VNIL)v.k=VFALSE;
+luaK_goiftrue(ls->fs,&v);
+return v.f;
+}
+static void breakstat(LexState*ls){
+FuncState*fs=ls->fs;
+BlockCnt*bl=fs->bl;
+int upval=0;
+while(bl&&!bl->isbreakable){
+upval|=bl->upval;
+bl=bl->previous;
+}
+if(!bl)
+luaX_syntaxerror(ls,"no loop to break");
+if(upval)
+luaK_codeABC(fs,OP_CLOSE,bl->nactvar,0,0);
+luaK_concat(fs,&bl->breaklist,luaK_jump(fs));
+}
+static void whilestat(LexState*ls,int line){
+FuncState*fs=ls->fs;
+int whileinit;
+int condexit;
+BlockCnt bl;
+luaX_next(ls);
+whileinit=luaK_getlabel(fs);
+condexit=cond(ls);
+enterblock(fs,&bl,1);
+checknext(ls,TK_DO);
+block(ls);
+luaK_patchlist(fs,luaK_jump(fs),whileinit);
+check_match(ls,TK_END,TK_WHILE,line);
+leaveblock(fs);
+luaK_patchtohere(fs,condexit);
+}
+static void repeatstat(LexState*ls,int line){
+int condexit;
+FuncState*fs=ls->fs;
+int repeat_init=luaK_getlabel(fs);
+BlockCnt bl1,bl2;
+enterblock(fs,&bl1,1);
+enterblock(fs,&bl2,0);
+luaX_next(ls);
+chunk(ls);
+check_match(ls,TK_UNTIL,TK_REPEAT,line);
+condexit=cond(ls);
+if(!bl2.upval){
+leaveblock(fs);
+luaK_patchlist(ls->fs,condexit,repeat_init);
+}
+else{
+breakstat(ls);
+luaK_patchtohere(ls->fs,condexit);
+leaveblock(fs);
+luaK_patchlist(ls->fs,luaK_jump(fs),repeat_init);
+}
+leaveblock(fs);
+}
+static int exp1(LexState*ls){
+expdesc e;
+int k;
+expr(ls,&e);
+k=e.k;
+luaK_exp2nextreg(ls->fs,&e);
+return k;
+}
+static void forbody(LexState*ls,int base,int line,int nvars,int isnum){
+BlockCnt bl;
+FuncState*fs=ls->fs;
+int prep,endfor;
+adjustlocalvars(ls,3);
+checknext(ls,TK_DO);
+prep=isnum?luaK_codeAsBx(fs,OP_FORPREP,base,(-1)):luaK_jump(fs);
+enterblock(fs,&bl,0);
+adjustlocalvars(ls,nvars);
+luaK_reserveregs(fs,nvars);
+block(ls);
+leaveblock(fs);
+luaK_patchtohere(fs,prep);
+endfor=(isnum)?luaK_codeAsBx(fs,OP_FORLOOP,base,(-1)):
+luaK_codeABC(fs,OP_TFORLOOP,base,0,nvars);
+luaK_fixline(fs,line);
+luaK_patchlist(fs,(isnum?endfor:luaK_jump(fs)),prep+1);
+}
+static void fornum(LexState*ls,TString*varname,int line){
+FuncState*fs=ls->fs;
+int base=fs->freereg;
+new_localvarliteral(ls,"(for index)",0);
+new_localvarliteral(ls,"(for limit)",1);
+new_localvarliteral(ls,"(for step)",2);
+new_localvar(ls,varname,3);
+checknext(ls,'=');
+exp1(ls);
+checknext(ls,',');
+exp1(ls);
+if(testnext(ls,','))
+exp1(ls);
+else{
+luaK_codeABx(fs,OP_LOADK,fs->freereg,luaK_numberK(fs,1));
+luaK_reserveregs(fs,1);
+}
+forbody(ls,base,line,1,1);
+}
+static void forlist(LexState*ls,TString*indexname){
+FuncState*fs=ls->fs;
+expdesc e;
+int nvars=0;
+int line;
+int base=fs->freereg;
+new_localvarliteral(ls,"(for generator)",nvars++);
+new_localvarliteral(ls,"(for state)",nvars++);
+new_localvarliteral(ls,"(for control)",nvars++);
+new_localvar(ls,indexname,nvars++);
+while(testnext(ls,','))
+new_localvar(ls,str_checkname(ls),nvars++);
+checknext(ls,TK_IN);
+line=ls->linenumber;
+adjust_assign(ls,3,explist1(ls,&e),&e);
+luaK_checkstack(fs,3);
+forbody(ls,base,line,nvars-3,0);
+}
+static void forstat(LexState*ls,int line){
+FuncState*fs=ls->fs;
+TString*varname;
+BlockCnt bl;
+enterblock(fs,&bl,1);
+luaX_next(ls);
+varname=str_checkname(ls);
+switch(ls->t.token){
+case'=':fornum(ls,varname,line);break;
+case',':case TK_IN:forlist(ls,varname);break;
+default:luaX_syntaxerror(ls,LUA_QL("=")" or "LUA_QL("in")" expected");
+}
+check_match(ls,TK_END,TK_FOR,line);
+leaveblock(fs);
+}
+static int test_then_block(LexState*ls){
+int condexit;
+luaX_next(ls);
+condexit=cond(ls);
+checknext(ls,TK_THEN);
+block(ls);
+return condexit;
+}
+static void ifstat(LexState*ls,int line){
+FuncState*fs=ls->fs;
+int flist;
+int escapelist=(-1);
+flist=test_then_block(ls);
+while(ls->t.token==TK_ELSEIF){
+luaK_concat(fs,&escapelist,luaK_jump(fs));
+luaK_patchtohere(fs,flist);
+flist=test_then_block(ls);
+}
+if(ls->t.token==TK_ELSE){
+luaK_concat(fs,&escapelist,luaK_jump(fs));
+luaK_patchtohere(fs,flist);
+luaX_next(ls);
+block(ls);
+}
+else
+luaK_concat(fs,&escapelist,flist);
+luaK_patchtohere(fs,escapelist);
+check_match(ls,TK_END,TK_IF,line);
+}
+static void localfunc(LexState*ls){
+expdesc v,b;
+FuncState*fs=ls->fs;
+new_localvar(ls,str_checkname(ls),0);
+init_exp(&v,VLOCAL,fs->freereg);
+luaK_reserveregs(fs,1);
+adjustlocalvars(ls,1);
+body(ls,&b,0,ls->linenumber);
+luaK_storevar(fs,&v,&b);
+getlocvar(fs,fs->nactvar-1).startpc=fs->pc;
+}
+static void localstat(LexState*ls){
+int nvars=0;
+int nexps;
+expdesc e;
+do{
+new_localvar(ls,str_checkname(ls),nvars++);
+}while(testnext(ls,','));
+if(testnext(ls,'='))
+nexps=explist1(ls,&e);
+else{
+e.k=VVOID;
+nexps=0;
+}
+adjust_assign(ls,nvars,nexps,&e);
+adjustlocalvars(ls,nvars);
+}
+static int funcname(LexState*ls,expdesc*v){
+int needself=0;
+singlevar(ls,v);
+while(ls->t.token=='.')
+field(ls,v);
+if(ls->t.token==':'){
+needself=1;
+field(ls,v);
+}
+return needself;
+}
+static void funcstat(LexState*ls,int line){
+int needself;
+expdesc v,b;
+luaX_next(ls);
+needself=funcname(ls,&v);
+body(ls,&b,needself,line);
+luaK_storevar(ls->fs,&v,&b);
+luaK_fixline(ls->fs,line);
+}
+static void exprstat(LexState*ls){
+FuncState*fs=ls->fs;
+struct LHS_assign v;
+primaryexp(ls,&v.v);
+if(v.v.k==VCALL)
+SETARG_C(getcode(fs,&v.v),1);
+else{
+v.prev=NULL;
+assignment(ls,&v,1);
+}
+}
+static void retstat(LexState*ls){
+FuncState*fs=ls->fs;
+expdesc e;
+int first,nret;
+luaX_next(ls);
+if(block_follow(ls->t.token)||ls->t.token==';')
+first=nret=0;
+else{
+nret=explist1(ls,&e);
+if(hasmultret(e.k)){
+luaK_setmultret(fs,&e);
+if(e.k==VCALL&&nret==1){
+SET_OPCODE(getcode(fs,&e),OP_TAILCALL);
+}
+first=fs->nactvar;
+nret=(-1);
+}
+else{
+if(nret==1)
+first=luaK_exp2anyreg(fs,&e);
+else{
+luaK_exp2nextreg(fs,&e);
+first=fs->nactvar;
+}
+}
+}
+luaK_ret(fs,first,nret);
+}
+static int statement(LexState*ls){
+int line=ls->linenumber;
+switch(ls->t.token){
+case TK_IF:{
+ifstat(ls,line);
+return 0;
+}
+case TK_WHILE:{
+whilestat(ls,line);
+return 0;
+}
+case TK_DO:{
+luaX_next(ls);
+block(ls);
+check_match(ls,TK_END,TK_DO,line);
+return 0;
+}
+case TK_FOR:{
+forstat(ls,line);
+return 0;
+}
+case TK_REPEAT:{
+repeatstat(ls,line);
+return 0;
+}
+case TK_FUNCTION:{
+funcstat(ls,line);
+return 0;
+}
+case TK_LOCAL:{
+luaX_next(ls);
+if(testnext(ls,TK_FUNCTION))
+localfunc(ls);
+else
+localstat(ls);
+return 0;
+}
+case TK_RETURN:{
+retstat(ls);
+return 1;
+}
+case TK_BREAK:{
+luaX_next(ls);
+breakstat(ls);
+return 1;
+}
+default:{
+exprstat(ls);
+return 0;
+}
+}
+}
+static void chunk(LexState*ls){
+int islast=0;
+enterlevel(ls);
+while(!islast&&!block_follow(ls->t.token)){
+islast=statement(ls);
+testnext(ls,';');
+ls->fs->freereg=ls->fs->nactvar;
+}
+leavelevel(ls);
+}
+static const TValue*luaV_tonumber(const TValue*obj,TValue*n){
+lua_Number num;
+if(ttisnumber(obj))return obj;
+if(ttisstring(obj)&&luaO_str2d(svalue(obj),&num)){
+setnvalue(n,num);
+return n;
+}
+else
+return NULL;
+}
+static int luaV_tostring(lua_State*L,StkId obj){
+if(!ttisnumber(obj))
+return 0;
+else{
+char s[32];
+lua_Number n=nvalue(obj);
+lua_number2str(s,n);
+setsvalue(L,obj,luaS_new(L,s));
+return 1;
+}
+}
+static void callTMres(lua_State*L,StkId res,const TValue*f,
+const TValue*p1,const TValue*p2){
+ptrdiff_t result=savestack(L,res);
+setobj(L,L->top,f);
+setobj(L,L->top+1,p1);
+setobj(L,L->top+2,p2);
+luaD_checkstack(L,3);
+L->top+=3;
+luaD_call(L,L->top-3,1);
+res=restorestack(L,result);
+L->top--;
+setobj(L,res,L->top);
+}
+static void callTM(lua_State*L,const TValue*f,const TValue*p1,
+const TValue*p2,const TValue*p3){
+setobj(L,L->top,f);
+setobj(L,L->top+1,p1);
+setobj(L,L->top+2,p2);
+setobj(L,L->top+3,p3);
+luaD_checkstack(L,4);
+L->top+=4;
+luaD_call(L,L->top-4,0);
+}
+static void luaV_gettable(lua_State*L,const TValue*t,TValue*key,StkId val){
+int loop;
+for(loop=0;loop<100;loop++){
+const TValue*tm;
+if(ttistable(t)){
+Table*h=hvalue(t);
+const TValue*res=luaH_get(h,key);
+if(!ttisnil(res)||
+(tm=fasttm(L,h->metatable,TM_INDEX))==NULL){
+setobj(L,val,res);
+return;
+}
+}
+else if(ttisnil(tm=luaT_gettmbyobj(L,t,TM_INDEX)))
+luaG_typeerror(L,t,"index");
+if(ttisfunction(tm)){
+callTMres(L,val,tm,t,key);
+return;
+}
+t=tm;
+}
+luaG_runerror(L,"loop in gettable");
+}
+static void luaV_settable(lua_State*L,const TValue*t,TValue*key,StkId val){
+int loop;
+TValue temp;
+for(loop=0;loop<100;loop++){
+const TValue*tm;
+if(ttistable(t)){
+Table*h=hvalue(t);
+TValue*oldval=luaH_set(L,h,key);
+if(!ttisnil(oldval)||
+(tm=fasttm(L,h->metatable,TM_NEWINDEX))==NULL){
+setobj(L,oldval,val);
+h->flags=0;
+luaC_barriert(L,h,val);
+return;
+}
+}
+else if(ttisnil(tm=luaT_gettmbyobj(L,t,TM_NEWINDEX)))
+luaG_typeerror(L,t,"index");
+if(ttisfunction(tm)){
+callTM(L,tm,t,key,val);
+return;
+}
+setobj(L,&temp,tm);
+t=&temp;
+}
+luaG_runerror(L,"loop in settable");
+}
+static int call_binTM(lua_State*L,const TValue*p1,const TValue*p2,
+StkId res,TMS event){
+const TValue*tm=luaT_gettmbyobj(L,p1,event);
+if(ttisnil(tm))
+tm=luaT_gettmbyobj(L,p2,event);
+if(ttisnil(tm))return 0;
+callTMres(L,res,tm,p1,p2);
+return 1;
+}
+static const TValue*get_compTM(lua_State*L,Table*mt1,Table*mt2,
+TMS event){
+const TValue*tm1=fasttm(L,mt1,event);
+const TValue*tm2;
+if(tm1==NULL)return NULL;
+if(mt1==mt2)return tm1;
+tm2=fasttm(L,mt2,event);
+if(tm2==NULL)return NULL;
+if(luaO_rawequalObj(tm1,tm2))
+return tm1;
+return NULL;
+}
+static int call_orderTM(lua_State*L,const TValue*p1,const TValue*p2,
+TMS event){
+const TValue*tm1=luaT_gettmbyobj(L,p1,event);
+const TValue*tm2;
+if(ttisnil(tm1))return-1;
+tm2=luaT_gettmbyobj(L,p2,event);
+if(!luaO_rawequalObj(tm1,tm2))
+return-1;
+callTMres(L,L->top,tm1,p1,p2);
+return!l_isfalse(L->top);
+}
+static int l_strcmp(const TString*ls,const TString*rs){
+const char*l=getstr(ls);
+size_t ll=ls->tsv.len;
+const char*r=getstr(rs);
+size_t lr=rs->tsv.len;
+for(;;){
+int temp=strcoll(l,r);
+if(temp!=0)return temp;
+else{
+size_t len=strlen(l);
+if(len==lr)
+return(len==ll)?0:1;
+else if(len==ll)
+return-1;
+len++;
+l+=len;ll-=len;r+=len;lr-=len;
+}
+}
+}
+static int luaV_lessthan(lua_State*L,const TValue*l,const TValue*r){
+int res;
+if(ttype(l)!=ttype(r))
+return luaG_ordererror(L,l,r);
+else if(ttisnumber(l))
+return luai_numlt(nvalue(l),nvalue(r));
+else if(ttisstring(l))
+return l_strcmp(rawtsvalue(l),rawtsvalue(r))<0;
+else if((res=call_orderTM(L,l,r,TM_LT))!=-1)
+return res;
+return luaG_ordererror(L,l,r);
+}
+static int lessequal(lua_State*L,const TValue*l,const TValue*r){
+int res;
+if(ttype(l)!=ttype(r))
+return luaG_ordererror(L,l,r);
+else if(ttisnumber(l))
+return luai_numle(nvalue(l),nvalue(r));
+else if(ttisstring(l))
+return l_strcmp(rawtsvalue(l),rawtsvalue(r))<=0;
+else if((res=call_orderTM(L,l,r,TM_LE))!=-1)
+return res;
+else if((res=call_orderTM(L,r,l,TM_LT))!=-1)
+return!res;
+return luaG_ordererror(L,l,r);
+}
+static int luaV_equalval(lua_State*L,const TValue*t1,const TValue*t2){
+const TValue*tm;
+switch(ttype(t1)){
+case 0:return 1;
+case 3:return luai_numeq(nvalue(t1),nvalue(t2));
+case 1:return bvalue(t1)==bvalue(t2);
+case 2:return pvalue(t1)==pvalue(t2);
+case 7:{
+if(uvalue(t1)==uvalue(t2))return 1;
+tm=get_compTM(L,uvalue(t1)->metatable,uvalue(t2)->metatable,
+TM_EQ);
+break;
+}
+case 5:{
+if(hvalue(t1)==hvalue(t2))return 1;
+tm=get_compTM(L,hvalue(t1)->metatable,hvalue(t2)->metatable,TM_EQ);
+break;
+}
+default:return gcvalue(t1)==gcvalue(t2);
+}
+if(tm==NULL)return 0;
+callTMres(L,L->top,tm,t1,t2);
+return!l_isfalse(L->top);
+}
+static void luaV_concat(lua_State*L,int total,int last){
+do{
+StkId top=L->base+last+1;
+int n=2;
+if(!(ttisstring(top-2)||ttisnumber(top-2))||!tostring(L,top-1)){
+if(!call_binTM(L,top-2,top-1,top-2,TM_CONCAT))
+luaG_concaterror(L,top-2,top-1);
+}else if(tsvalue(top-1)->len==0)
+(void)tostring(L,top-2);
+else{
+size_t tl=tsvalue(top-1)->len;
+char*buffer;
+int i;
+for(n=1;n<total&&tostring(L,top-n-1);n++){
+size_t l=tsvalue(top-n-1)->len;
+if(l>=((size_t)(~(size_t)0)-2)-tl)luaG_runerror(L,"string length overflow");
+tl+=l;
+}
+buffer=luaZ_openspace(L,&G(L)->buff,tl);
+tl=0;
+for(i=n;i>0;i--){
+size_t l=tsvalue(top-i)->len;
+memcpy(buffer+tl,svalue(top-i),l);
+tl+=l;
+}
+setsvalue(L,top-n,luaS_newlstr(L,buffer,tl));
+}
+total-=n-1;
+last-=n-1;
+}while(total>1);
+}
+static void Arith(lua_State*L,StkId ra,const TValue*rb,
+const TValue*rc,TMS op){
+TValue tempb,tempc;
+const TValue*b,*c;
+if((b=luaV_tonumber(rb,&tempb))!=NULL&&
+(c=luaV_tonumber(rc,&tempc))!=NULL){
+lua_Number nb=nvalue(b),nc=nvalue(c);
+switch(op){
+case TM_ADD:setnvalue(ra,luai_numadd(nb,nc));break;
+case TM_SUB:setnvalue(ra,luai_numsub(nb,nc));break;
+case TM_MUL:setnvalue(ra,luai_nummul(nb,nc));break;
+case TM_DIV:setnvalue(ra,luai_numdiv(nb,nc));break;
+case TM_MOD:setnvalue(ra,luai_nummod(nb,nc));break;
+case TM_POW:setnvalue(ra,luai_numpow(nb,nc));break;
+case TM_UNM:setnvalue(ra,luai_numunm(nb));break;
+default:break;
+}
+}
+else if(!call_binTM(L,rb,rc,ra,op))
+luaG_aritherror(L,rb,rc);
+}
+#define runtime_check(L,c){if(!(c))break;}
+#define RA(i)(base+GETARG_A(i))
+#define RB(i)check_exp(getBMode(GET_OPCODE(i))==OpArgR,base+GETARG_B(i))
+#define RKB(i)check_exp(getBMode(GET_OPCODE(i))==OpArgK,ISK(GETARG_B(i))?k+INDEXK(GETARG_B(i)):base+GETARG_B(i))
+#define RKC(i)check_exp(getCMode(GET_OPCODE(i))==OpArgK,ISK(GETARG_C(i))?k+INDEXK(GETARG_C(i)):base+GETARG_C(i))
+#define KBx(i)check_exp(getBMode(GET_OPCODE(i))==OpArgK,k+GETARG_Bx(i))
+#define dojump(L,pc,i){(pc)+=(i);}
+#define Protect(x){L->savedpc=pc;{x;};base=L->base;}
+#define arith_op(op,tm){TValue*rb=RKB(i);TValue*rc=RKC(i);if(ttisnumber(rb)&&ttisnumber(rc)){lua_Number nb=nvalue(rb),nc=nvalue(rc);setnvalue(ra,op(nb,nc));}else Protect(Arith(L,ra,rb,rc,tm));}
+static void luaV_execute(lua_State*L,int nexeccalls){
+LClosure*cl;
+StkId base;
+TValue*k;
+const Instruction*pc;
+reentry:
+pc=L->savedpc;
+cl=&clvalue(L->ci->func)->l;
+base=L->base;
+k=cl->p->k;
+for(;;){
+const Instruction i=*pc++;
+StkId ra;
+ra=RA(i);
+switch(GET_OPCODE(i)){
+case OP_MOVE:{
+setobj(L,ra,RB(i));
+continue;
+}
+case OP_LOADK:{
+setobj(L,ra,KBx(i));
+continue;
+}
+case OP_LOADBOOL:{
+setbvalue(ra,GETARG_B(i));
+if(GETARG_C(i))pc++;
+continue;
+}
+case OP_LOADNIL:{
+TValue*rb=RB(i);
+do{
+setnilvalue(rb--);
+}while(rb>=ra);
+continue;
+}
+case OP_GETUPVAL:{
+int b=GETARG_B(i);
+setobj(L,ra,cl->upvals[b]->v);
+continue;
+}
+case OP_GETGLOBAL:{
+TValue g;
+TValue*rb=KBx(i);
+sethvalue(L,&g,cl->env);
+Protect(luaV_gettable(L,&g,rb,ra));
+continue;
+}
+case OP_GETTABLE:{
+Protect(luaV_gettable(L,RB(i),RKC(i),ra));
+continue;
+}
+case OP_SETGLOBAL:{
+TValue g;
+sethvalue(L,&g,cl->env);
+Protect(luaV_settable(L,&g,KBx(i),ra));
+continue;
+}
+case OP_SETUPVAL:{
+UpVal*uv=cl->upvals[GETARG_B(i)];
+setobj(L,uv->v,ra);
+luaC_barrier(L,uv,ra);
+continue;
+}
+case OP_SETTABLE:{
+Protect(luaV_settable(L,ra,RKB(i),RKC(i)));
+continue;
+}
+case OP_NEWTABLE:{
+int b=GETARG_B(i);
+int c=GETARG_C(i);
+sethvalue(L,ra,luaH_new(L,luaO_fb2int(b),luaO_fb2int(c)));
+Protect(luaC_checkGC(L));
+continue;
+}
+case OP_SELF:{
+StkId rb=RB(i);
+setobj(L,ra+1,rb);
+Protect(luaV_gettable(L,rb,RKC(i),ra));
+continue;
+}
+case OP_ADD:{
+arith_op(luai_numadd,TM_ADD);
+continue;
+}
+case OP_SUB:{
+arith_op(luai_numsub,TM_SUB);
+continue;
+}
+case OP_MUL:{
+arith_op(luai_nummul,TM_MUL);
+continue;
+}
+case OP_DIV:{
+arith_op(luai_numdiv,TM_DIV);
+continue;
+}
+case OP_MOD:{
+arith_op(luai_nummod,TM_MOD);
+continue;
+}
+case OP_POW:{
+arith_op(luai_numpow,TM_POW);
+continue;
+}
+case OP_UNM:{
+TValue*rb=RB(i);
+if(ttisnumber(rb)){
+lua_Number nb=nvalue(rb);
+setnvalue(ra,luai_numunm(nb));
+}
+else{
+Protect(Arith(L,ra,rb,rb,TM_UNM));
+}
+continue;
+}
+case OP_NOT:{
+int res=l_isfalse(RB(i));
+setbvalue(ra,res);
+continue;
+}
+case OP_LEN:{
+const TValue*rb=RB(i);
+switch(ttype(rb)){
+case 5:{
+setnvalue(ra,cast_num(luaH_getn(hvalue(rb))));
+break;
+}
+case 4:{
+setnvalue(ra,cast_num(tsvalue(rb)->len));
+break;
+}
+default:{
+Protect(
+if(!call_binTM(L,rb,(&luaO_nilobject_),ra,TM_LEN))
+luaG_typeerror(L,rb,"get length of");
+)
+}
+}
+continue;
+}
+case OP_CONCAT:{
+int b=GETARG_B(i);
+int c=GETARG_C(i);
+Protect(luaV_concat(L,c-b+1,c);luaC_checkGC(L));
+setobj(L,RA(i),base+b);
+continue;
+}
+case OP_JMP:{
+dojump(L,pc,GETARG_sBx(i));
+continue;
+}
+case OP_EQ:{
+TValue*rb=RKB(i);
+TValue*rc=RKC(i);
+Protect(
+if(equalobj(L,rb,rc)==GETARG_A(i))
+dojump(L,pc,GETARG_sBx(*pc));
+)
+pc++;
+continue;
+}
+case OP_LT:{
+Protect(
+if(luaV_lessthan(L,RKB(i),RKC(i))==GETARG_A(i))
+dojump(L,pc,GETARG_sBx(*pc));
+)
+pc++;
+continue;
+}
+case OP_LE:{
+Protect(
+if(lessequal(L,RKB(i),RKC(i))==GETARG_A(i))
+dojump(L,pc,GETARG_sBx(*pc));
+)
+pc++;
+continue;
+}
+case OP_TEST:{
+if(l_isfalse(ra)!=GETARG_C(i))
+dojump(L,pc,GETARG_sBx(*pc));
+pc++;
+continue;
+}
+case OP_TESTSET:{
+TValue*rb=RB(i);
+if(l_isfalse(rb)!=GETARG_C(i)){
+setobj(L,ra,rb);
+dojump(L,pc,GETARG_sBx(*pc));
+}
+pc++;
+continue;
+}
+case OP_CALL:{
+int b=GETARG_B(i);
+int nresults=GETARG_C(i)-1;
+if(b!=0)L->top=ra+b;
+L->savedpc=pc;
+switch(luaD_precall(L,ra,nresults)){
+case 0:{
+nexeccalls++;
+goto reentry;
+}
+case 1:{
+if(nresults>=0)L->top=L->ci->top;
+base=L->base;
+continue;
+}
+default:{
+return;
+}
+}
+}
+case OP_TAILCALL:{
+int b=GETARG_B(i);
+if(b!=0)L->top=ra+b;
+L->savedpc=pc;
+switch(luaD_precall(L,ra,(-1))){
+case 0:{
+CallInfo*ci=L->ci-1;
+int aux;
+StkId func=ci->func;
+StkId pfunc=(ci+1)->func;
+if(L->openupval)luaF_close(L,ci->base);
+L->base=ci->base=ci->func+((ci+1)->base-pfunc);
+for(aux=0;pfunc+aux<L->top;aux++)
+setobj(L,func+aux,pfunc+aux);
+ci->top=L->top=func+aux;
+ci->savedpc=L->savedpc;
+ci->tailcalls++;
+L->ci--;
+goto reentry;
+}
+case 1:{
+base=L->base;
+continue;
+}
+default:{
+return;
+}
+}
+}
+case OP_RETURN:{
+int b=GETARG_B(i);
+if(b!=0)L->top=ra+b-1;
+if(L->openupval)luaF_close(L,base);
+L->savedpc=pc;
+b=luaD_poscall(L,ra);
+if(--nexeccalls==0)
+return;
+else{
+if(b)L->top=L->ci->top;
+goto reentry;
+}
+}
+case OP_FORLOOP:{
+lua_Number step=nvalue(ra+2);
+lua_Number idx=luai_numadd(nvalue(ra),step);
+lua_Number limit=nvalue(ra+1);
+if(luai_numlt(0,step)?luai_numle(idx,limit)
+:luai_numle(limit,idx)){
+dojump(L,pc,GETARG_sBx(i));
+setnvalue(ra,idx);
+setnvalue(ra+3,idx);
+}
+continue;
+}
+case OP_FORPREP:{
+const TValue*init=ra;
+const TValue*plimit=ra+1;
+const TValue*pstep=ra+2;
+L->savedpc=pc;
+if(!tonumber(init,ra))
+luaG_runerror(L,LUA_QL("for")" initial value must be a number");
+else if(!tonumber(plimit,ra+1))
+luaG_runerror(L,LUA_QL("for")" limit must be a number");
+else if(!tonumber(pstep,ra+2))
+luaG_runerror(L,LUA_QL("for")" step must be a number");
+setnvalue(ra,luai_numsub(nvalue(ra),nvalue(pstep)));
+dojump(L,pc,GETARG_sBx(i));
+continue;
+}
+case OP_TFORLOOP:{
+StkId cb=ra+3;
+setobj(L,cb+2,ra+2);
+setobj(L,cb+1,ra+1);
+setobj(L,cb,ra);
+L->top=cb+3;
+Protect(luaD_call(L,cb,GETARG_C(i)));
+L->top=L->ci->top;
+cb=RA(i)+3;
+if(!ttisnil(cb)){
+setobj(L,cb-1,cb);
+dojump(L,pc,GETARG_sBx(*pc));
+}
+pc++;
+continue;
+}
+case OP_SETLIST:{
+int n=GETARG_B(i);
+int c=GETARG_C(i);
+int last;
+Table*h;
+if(n==0){
+n=cast_int(L->top-ra)-1;
+L->top=L->ci->top;
+}
+if(c==0)c=cast_int(*pc++);
+runtime_check(L,ttistable(ra));
+h=hvalue(ra);
+last=((c-1)*50)+n;
+if(last>h->sizearray)
+luaH_resizearray(L,h,last);
+for(;n>0;n--){
+TValue*val=ra+n;
+setobj(L,luaH_setnum(L,h,last--),val);
+luaC_barriert(L,h,val);
+}
+continue;
+}
+case OP_CLOSE:{
+luaF_close(L,ra);
+continue;
+}
+case OP_CLOSURE:{
+Proto*p;
+Closure*ncl;
+int nup,j;
+p=cl->p->p[GETARG_Bx(i)];
+nup=p->nups;
+ncl=luaF_newLclosure(L,nup,cl->env);
+ncl->l.p=p;
+for(j=0;j<nup;j++,pc++){
+if(GET_OPCODE(*pc)==OP_GETUPVAL)
+ncl->l.upvals[j]=cl->upvals[GETARG_B(*pc)];
+else{
+ncl->l.upvals[j]=luaF_findupval(L,base+GETARG_B(*pc));
+}
+}
+setclvalue(L,ra,ncl);
+Protect(luaC_checkGC(L));
+continue;
+}
+case OP_VARARG:{
+int b=GETARG_B(i)-1;
+int j;
+CallInfo*ci=L->ci;
+int n=cast_int(ci->base-ci->func)-cl->p->numparams-1;
+if(b==(-1)){
+Protect(luaD_checkstack(L,n));
+ra=RA(i);
+b=n;
+L->top=ra+n;
+}
+for(j=0;j<b;j++){
+if(j<n){
+setobj(L,ra+j,ci->base-n+j);
+}
+else{
+setnilvalue(ra+j);
+}
+}
+continue;
+}
+}
+}
+}
+#define api_checknelems(L,n)luai_apicheck(L,(n)<=(L->top-L->base))
+#define api_checkvalidindex(L,i)luai_apicheck(L,(i)!=(&luaO_nilobject_))
+#define api_incr_top(L){luai_apicheck(L,L->top<L->ci->top);L->top++;}
+static TValue*index2adr(lua_State*L,int idx){
+if(idx>0){
+TValue*o=L->base+(idx-1);
+luai_apicheck(L,idx<=L->ci->top-L->base);
+if(o>=L->top)return cast(TValue*,(&luaO_nilobject_));
+else return o;
+}
+else if(idx>(-10000)){
+luai_apicheck(L,idx!=0&&-idx<=L->top-L->base);
+return L->top+idx;
+}
+else switch(idx){
+case(-10000):return registry(L);
+case(-10001):{
+Closure*func=curr_func(L);
+sethvalue(L,&L->env,func->c.env);
+return&L->env;
+}
+case(-10002):return gt(L);
+default:{
+Closure*func=curr_func(L);
+idx=(-10002)-idx;
+return(idx<=func->c.nupvalues)
+?&func->c.upvalue[idx-1]
+:cast(TValue*,(&luaO_nilobject_));
+}
+}
+}
+static Table*getcurrenv(lua_State*L){
+if(L->ci==L->base_ci)
+return hvalue(gt(L));
+else{
+Closure*func=curr_func(L);
+return func->c.env;
+}
+}
+static int lua_checkstack(lua_State*L,int size){
+int res=1;
+if(size>8000||(L->top-L->base+size)>8000)
+res=0;
+else if(size>0){
+luaD_checkstack(L,size);
+if(L->ci->top<L->top+size)
+L->ci->top=L->top+size;
+}
+return res;
+}
+static lua_CFunction lua_atpanic(lua_State*L,lua_CFunction panicf){
+lua_CFunction old;
+old=G(L)->panic;
+G(L)->panic=panicf;
+return old;
+}
+static int lua_gettop(lua_State*L){
+return cast_int(L->top-L->base);
+}
+static void lua_settop(lua_State*L,int idx){
+if(idx>=0){
+luai_apicheck(L,idx<=L->stack_last-L->base);
+while(L->top<L->base+idx)
+setnilvalue(L->top++);
+L->top=L->base+idx;
+}
+else{
+luai_apicheck(L,-(idx+1)<=(L->top-L->base));
+L->top+=idx+1;
+}
+}
+static void lua_remove(lua_State*L,int idx){
+StkId p;
+p=index2adr(L,idx);
+api_checkvalidindex(L,p);
+while(++p<L->top)setobj(L,p-1,p);
+L->top--;
+}
+static void lua_insert(lua_State*L,int idx){
+StkId p;
+StkId q;
+p=index2adr(L,idx);
+api_checkvalidindex(L,p);
+for(q=L->top;q>p;q--)setobj(L,q,q-1);
+setobj(L,p,L->top);
+}
+static void lua_replace(lua_State*L,int idx){
+StkId o;
+if(idx==(-10001)&&L->ci==L->base_ci)
+luaG_runerror(L,"no calling environment");
+api_checknelems(L,1);
+o=index2adr(L,idx);
+api_checkvalidindex(L,o);
+if(idx==(-10001)){
+Closure*func=curr_func(L);
+luai_apicheck(L,ttistable(L->top-1));
+func->c.env=hvalue(L->top-1);
+luaC_barrier(L,func,L->top-1);
+}
+else{
+setobj(L,o,L->top-1);
+if(idx<(-10002))
+luaC_barrier(L,curr_func(L),L->top-1);
+}
+L->top--;
+}
+static void lua_pushvalue(lua_State*L,int idx){
+setobj(L,L->top,index2adr(L,idx));
+api_incr_top(L);
+}
+static int lua_type(lua_State*L,int idx){
+StkId o=index2adr(L,idx);
+return(o==(&luaO_nilobject_))?(-1):ttype(o);
+}
+static const char*lua_typename(lua_State*L,int t){
+UNUSED(L);
+return(t==(-1))?"no value":luaT_typenames[t];
+}
+static int lua_iscfunction(lua_State*L,int idx){
+StkId o=index2adr(L,idx);
+return iscfunction(o);
+}
+static int lua_isnumber(lua_State*L,int idx){
+TValue n;
+const TValue*o=index2adr(L,idx);
+return tonumber(o,&n);
+}
+static int lua_isstring(lua_State*L,int idx){
+int t=lua_type(L,idx);
+return(t==4||t==3);
+}
+static int lua_rawequal(lua_State*L,int index1,int index2){
+StkId o1=index2adr(L,index1);
+StkId o2=index2adr(L,index2);
+return(o1==(&luaO_nilobject_)||o2==(&luaO_nilobject_))?0
+:luaO_rawequalObj(o1,o2);
+}
+static int lua_lessthan(lua_State*L,int index1,int index2){
+StkId o1,o2;
+int i;
+o1=index2adr(L,index1);
+o2=index2adr(L,index2);
+i=(o1==(&luaO_nilobject_)||o2==(&luaO_nilobject_))?0
+:luaV_lessthan(L,o1,o2);
+return i;
+}
+static lua_Number lua_tonumber(lua_State*L,int idx){
+TValue n;
+const TValue*o=index2adr(L,idx);
+if(tonumber(o,&n))
+return nvalue(o);
+else
+return 0;
+}
+static lua_Integer lua_tointeger(lua_State*L,int idx){
+TValue n;
+const TValue*o=index2adr(L,idx);
+if(tonumber(o,&n)){
+lua_Integer res;
+lua_Number num=nvalue(o);
+lua_number2integer(res,num);
+return res;
+}
+else
+return 0;
+}
+static int lua_toboolean(lua_State*L,int idx){
+const TValue*o=index2adr(L,idx);
+return!l_isfalse(o);
+}
+static const char*lua_tolstring(lua_State*L,int idx,size_t*len){
+StkId o=index2adr(L,idx);
+if(!ttisstring(o)){
+if(!luaV_tostring(L,o)){
+if(len!=NULL)*len=0;
+return NULL;
+}
+luaC_checkGC(L);
+o=index2adr(L,idx);
+}
+if(len!=NULL)*len=tsvalue(o)->len;
+return svalue(o);
+}
+static size_t lua_objlen(lua_State*L,int idx){
+StkId o=index2adr(L,idx);
+switch(ttype(o)){
+case 4:return tsvalue(o)->len;
+case 7:return uvalue(o)->len;
+case 5:return luaH_getn(hvalue(o));
+case 3:{
+size_t l;
+l=(luaV_tostring(L,o)?tsvalue(o)->len:0);
+return l;
+}
+default:return 0;
+}
+}
+static lua_CFunction lua_tocfunction(lua_State*L,int idx){
+StkId o=index2adr(L,idx);
+return(!iscfunction(o))?NULL:clvalue(o)->c.f;
+}
+static void*lua_touserdata(lua_State*L,int idx){
+StkId o=index2adr(L,idx);
+switch(ttype(o)){
+case 7:return(rawuvalue(o)+1);
+case 2:return pvalue(o);
+default:return NULL;
+}
+}
+static void lua_pushnil(lua_State*L){
+setnilvalue(L->top);
+api_incr_top(L);
+}
+static void lua_pushnumber(lua_State*L,lua_Number n){
+setnvalue(L->top,n);
+api_incr_top(L);
+}
+static void lua_pushinteger(lua_State*L,lua_Integer n){
+setnvalue(L->top,cast_num(n));
+api_incr_top(L);
+}
+static void lua_pushlstring(lua_State*L,const char*s,size_t len){
+luaC_checkGC(L);
+setsvalue(L,L->top,luaS_newlstr(L,s,len));
+api_incr_top(L);
+}
+static void lua_pushstring(lua_State*L,const char*s){
+if(s==NULL)
+lua_pushnil(L);
+else
+lua_pushlstring(L,s,strlen(s));
+}
+static const char*lua_pushvfstring(lua_State*L,const char*fmt,
+va_list argp){
+const char*ret;
+luaC_checkGC(L);
+ret=luaO_pushvfstring(L,fmt,argp);
+return ret;
+}
+static const char*lua_pushfstring(lua_State*L,const char*fmt,...){
+const char*ret;
+va_list argp;
+luaC_checkGC(L);
+va_start(argp,fmt);
+ret=luaO_pushvfstring(L,fmt,argp);
+va_end(argp);
+return ret;
+}
+static void lua_pushcclosure(lua_State*L,lua_CFunction fn,int n){
+Closure*cl;
+luaC_checkGC(L);
+api_checknelems(L,n);
+cl=luaF_newCclosure(L,n,getcurrenv(L));
+cl->c.f=fn;
+L->top-=n;
+while(n--)
+setobj(L,&cl->c.upvalue[n],L->top+n);
+setclvalue(L,L->top,cl);
+api_incr_top(L);
+}
+static void lua_pushboolean(lua_State*L,int b){
+setbvalue(L->top,(b!=0));
+api_incr_top(L);
+}
+static int lua_pushthread(lua_State*L){
+setthvalue(L,L->top,L);
+api_incr_top(L);
+return(G(L)->mainthread==L);
+}
+static void lua_gettable(lua_State*L,int idx){
+StkId t;
+t=index2adr(L,idx);
+api_checkvalidindex(L,t);
+luaV_gettable(L,t,L->top-1,L->top-1);
+}
+static void lua_getfield(lua_State*L,int idx,const char*k){
+StkId t;
+TValue key;
+t=index2adr(L,idx);
+api_checkvalidindex(L,t);
+setsvalue(L,&key,luaS_new(L,k));
+luaV_gettable(L,t,&key,L->top);
+api_incr_top(L);
+}
+static void lua_rawget(lua_State*L,int idx){
+StkId t;
+t=index2adr(L,idx);
+luai_apicheck(L,ttistable(t));
+setobj(L,L->top-1,luaH_get(hvalue(t),L->top-1));
+}
+static void lua_rawgeti(lua_State*L,int idx,int n){
+StkId o;
+o=index2adr(L,idx);
+luai_apicheck(L,ttistable(o));
+setobj(L,L->top,luaH_getnum(hvalue(o),n));
+api_incr_top(L);
+}
+static void lua_createtable(lua_State*L,int narray,int nrec){
+luaC_checkGC(L);
+sethvalue(L,L->top,luaH_new(L,narray,nrec));
+api_incr_top(L);
+}
+static int lua_getmetatable(lua_State*L,int objindex){
+const TValue*obj;
+Table*mt=NULL;
+int res;
+obj=index2adr(L,objindex);
+switch(ttype(obj)){
+case 5:
+mt=hvalue(obj)->metatable;
+break;
+case 7:
+mt=uvalue(obj)->metatable;
+break;
+default:
+mt=G(L)->mt[ttype(obj)];
+break;
+}
+if(mt==NULL)
+res=0;
+else{
+sethvalue(L,L->top,mt);
+api_incr_top(L);
+res=1;
+}
+return res;
+}
+static void lua_getfenv(lua_State*L,int idx){
+StkId o;
+o=index2adr(L,idx);
+api_checkvalidindex(L,o);
+switch(ttype(o)){
+case 6:
+sethvalue(L,L->top,clvalue(o)->c.env);
+break;
+case 7:
+sethvalue(L,L->top,uvalue(o)->env);
+break;
+case 8:
+setobj(L,L->top,gt(thvalue(o)));
+break;
+default:
+setnilvalue(L->top);
+break;
+}
+api_incr_top(L);
+}
+static void lua_settable(lua_State*L,int idx){
+StkId t;
+api_checknelems(L,2);
+t=index2adr(L,idx);
+api_checkvalidindex(L,t);
+luaV_settable(L,t,L->top-2,L->top-1);
+L->top-=2;
+}
+static void lua_setfield(lua_State*L,int idx,const char*k){
+StkId t;
+TValue key;
+api_checknelems(L,1);
+t=index2adr(L,idx);
+api_checkvalidindex(L,t);
+setsvalue(L,&key,luaS_new(L,k));
+luaV_settable(L,t,&key,L->top-1);
+L->top--;
+}
+static void lua_rawset(lua_State*L,int idx){
+StkId t;
+api_checknelems(L,2);
+t=index2adr(L,idx);
+luai_apicheck(L,ttistable(t));
+setobj(L,luaH_set(L,hvalue(t),L->top-2),L->top-1);
+luaC_barriert(L,hvalue(t),L->top-1);
+L->top-=2;
+}
+static void lua_rawseti(lua_State*L,int idx,int n){
+StkId o;
+api_checknelems(L,1);
+o=index2adr(L,idx);
+luai_apicheck(L,ttistable(o));
+setobj(L,luaH_setnum(L,hvalue(o),n),L->top-1);
+luaC_barriert(L,hvalue(o),L->top-1);
+L->top--;
+}
+static int lua_setmetatable(lua_State*L,int objindex){
+TValue*obj;
+Table*mt;
+api_checknelems(L,1);
+obj=index2adr(L,objindex);
+api_checkvalidindex(L,obj);
+if(ttisnil(L->top-1))
+mt=NULL;
+else{
+luai_apicheck(L,ttistable(L->top-1));
+mt=hvalue(L->top-1);
+}
+switch(ttype(obj)){
+case 5:{
+hvalue(obj)->metatable=mt;
+if(mt)
+luaC_objbarriert(L,hvalue(obj),mt);
+break;
+}
+case 7:{
+uvalue(obj)->metatable=mt;
+if(mt)
+luaC_objbarrier(L,rawuvalue(obj),mt);
+break;
+}
+default:{
+G(L)->mt[ttype(obj)]=mt;
+break;
+}
+}
+L->top--;
+return 1;
+}
+static int lua_setfenv(lua_State*L,int idx){
+StkId o;
+int res=1;
+api_checknelems(L,1);
+o=index2adr(L,idx);
+api_checkvalidindex(L,o);
+luai_apicheck(L,ttistable(L->top-1));
+switch(ttype(o)){
+case 6:
+clvalue(o)->c.env=hvalue(L->top-1);
+break;
+case 7:
+uvalue(o)->env=hvalue(L->top-1);
+break;
+case 8:
+sethvalue(L,gt(thvalue(o)),hvalue(L->top-1));
+break;
+default:
+res=0;
+break;
+}
+if(res)luaC_objbarrier(L,gcvalue(o),hvalue(L->top-1));
+L->top--;
+return res;
+}
+#define adjustresults(L,nres){if(nres==(-1)&&L->top>=L->ci->top)L->ci->top=L->top;}
+#define checkresults(L,na,nr)luai_apicheck(L,(nr)==(-1)||(L->ci->top-L->top>=(nr)-(na)))
+static void lua_call(lua_State*L,int nargs,int nresults){
+StkId func;
+api_checknelems(L,nargs+1);
+checkresults(L,nargs,nresults);
+func=L->top-(nargs+1);
+luaD_call(L,func,nresults);
+adjustresults(L,nresults);
+}
+struct CallS{
+StkId func;
+int nresults;
+};
+static void f_call(lua_State*L,void*ud){
+struct CallS*c=cast(struct CallS*,ud);
+luaD_call(L,c->func,c->nresults);
+}
+static int lua_pcall(lua_State*L,int nargs,int nresults,int errfunc){
+struct CallS c;
+int status;
+ptrdiff_t func;
+api_checknelems(L,nargs+1);
+checkresults(L,nargs,nresults);
+if(errfunc==0)
+func=0;
+else{
+StkId o=index2adr(L,errfunc);
+api_checkvalidindex(L,o);
+func=savestack(L,o);
+}
+c.func=L->top-(nargs+1);
+c.nresults=nresults;
+status=luaD_pcall(L,f_call,&c,savestack(L,c.func),func);
+adjustresults(L,nresults);
+return status;
+}
+static int lua_load(lua_State*L,lua_Reader reader,void*data,
+const char*chunkname){
+ZIO z;
+int status;
+if(!chunkname)chunkname="?";
+luaZ_init(L,&z,reader,data);
+status=luaD_protectedparser(L,&z,chunkname);
+return status;
+}
+static int lua_error(lua_State*L){
+api_checknelems(L,1);
+luaG_errormsg(L);
+return 0;
+}
+static int lua_next(lua_State*L,int idx){
+StkId t;
+int more;
+t=index2adr(L,idx);
+luai_apicheck(L,ttistable(t));
+more=luaH_next(L,hvalue(t),L->top-1);
+if(more){
+api_incr_top(L);
+}
+else
+L->top-=1;
+return more;
+}
+static void lua_concat(lua_State*L,int n){
+api_checknelems(L,n);
+if(n>=2){
+luaC_checkGC(L);
+luaV_concat(L,n,cast_int(L->top-L->base)-1);
+L->top-=(n-1);
+}
+else if(n==0){
+setsvalue(L,L->top,luaS_newlstr(L,"",0));
+api_incr_top(L);
+}
+}
+static void*lua_newuserdata(lua_State*L,size_t size){
+Udata*u;
+luaC_checkGC(L);
+u=luaS_newudata(L,size,getcurrenv(L));
+setuvalue(L,L->top,u);
+api_incr_top(L);
+return u+1;
+}
+#define luaL_getn(L,i)((int)lua_objlen(L,i))
+#define luaL_setn(L,i,j)((void)0)
+typedef struct luaL_Reg{
+const char*name;
+lua_CFunction func;
+}luaL_Reg;
+static void luaI_openlib(lua_State*L,const char*libname,
+const luaL_Reg*l,int nup);
+static int luaL_argerror(lua_State*L,int numarg,const char*extramsg);
+static const char* luaL_checklstring(lua_State*L,int numArg,
+size_t*l);
+static const char* luaL_optlstring(lua_State*L,int numArg,
+const char*def,size_t*l);
+static lua_Integer luaL_checkinteger(lua_State*L,int numArg);
+static lua_Integer luaL_optinteger(lua_State*L,int nArg,
+lua_Integer def);
+static int luaL_error(lua_State*L,const char*fmt,...);
+static const char* luaL_findtable(lua_State*L,int idx,
+const char*fname,int szhint);
+#define luaL_argcheck(L,cond,numarg,extramsg)((void)((cond)||luaL_argerror(L,(numarg),(extramsg))))
+#define luaL_checkstring(L,n)(luaL_checklstring(L,(n),NULL))
+#define luaL_optstring(L,n,d)(luaL_optlstring(L,(n),(d),NULL))
+#define luaL_checkint(L,n)((int)luaL_checkinteger(L,(n)))
+#define luaL_optint(L,n,d)((int)luaL_optinteger(L,(n),(d)))
+#define luaL_typename(L,i)lua_typename(L,lua_type(L,(i)))
+#define luaL_getmetatable(L,n)(lua_getfield(L,(-10000),(n)))
+#define luaL_opt(L,f,n,d)(lua_isnoneornil(L,(n))?(d):f(L,(n)))
+typedef struct luaL_Buffer{
+char*p;
+int lvl;
+lua_State*L;
+char buffer[BUFSIZ];
+}luaL_Buffer;
+#define luaL_addchar(B,c)((void)((B)->p<((B)->buffer+BUFSIZ)||luaL_prepbuffer(B)),(*(B)->p++=(char)(c)))
+#define luaL_addsize(B,n)((B)->p+=(n))
+static char* luaL_prepbuffer(luaL_Buffer*B);
+static int luaL_argerror(lua_State*L,int narg,const char*extramsg){
+lua_Debug ar;
+if(!lua_getstack(L,0,&ar))
+return luaL_error(L,"bad argument #%d (%s)",narg,extramsg);
+lua_getinfo(L,"n",&ar);
+if(strcmp(ar.namewhat,"method")==0){
+narg--;
+if(narg==0)
+return luaL_error(L,"calling "LUA_QL("%s")" on bad self (%s)",
+ar.name,extramsg);
+}
+if(ar.name==NULL)
+ar.name="?";
+return luaL_error(L,"bad argument #%d to "LUA_QL("%s")" (%s)",
+narg,ar.name,extramsg);
+}
+static int luaL_typerror(lua_State*L,int narg,const char*tname){
+const char*msg=lua_pushfstring(L,"%s expected, got %s",
+tname,luaL_typename(L,narg));
+return luaL_argerror(L,narg,msg);
+}
+static void tag_error(lua_State*L,int narg,int tag){
+luaL_typerror(L,narg,lua_typename(L,tag));
+}
+static void luaL_where(lua_State*L,int level){
+lua_Debug ar;
+if(lua_getstack(L,level,&ar)){
+lua_getinfo(L,"Sl",&ar);
+if(ar.currentline>0){
+lua_pushfstring(L,"%s:%d: ",ar.short_src,ar.currentline);
+return;
+}
+}
+lua_pushliteral(L,"");
+}
+static int luaL_error(lua_State*L,const char*fmt,...){
+va_list argp;
+va_start(argp,fmt);
+luaL_where(L,1);
+lua_pushvfstring(L,fmt,argp);
+va_end(argp);
+lua_concat(L,2);
+return lua_error(L);
+}
+static int luaL_newmetatable(lua_State*L,const char*tname){
+lua_getfield(L,(-10000),tname);
+if(!lua_isnil(L,-1))
+return 0;
+lua_pop(L,1);
+lua_newtable(L);
+lua_pushvalue(L,-1);
+lua_setfield(L,(-10000),tname);
+return 1;
+}
+static void*luaL_checkudata(lua_State*L,int ud,const char*tname){
+void*p=lua_touserdata(L,ud);
+if(p!=NULL){
+if(lua_getmetatable(L,ud)){
+lua_getfield(L,(-10000),tname);
+if(lua_rawequal(L,-1,-2)){
+lua_pop(L,2);
+return p;
+}
+}
+}
+luaL_typerror(L,ud,tname);
+return NULL;
+}
+static void luaL_checkstack(lua_State*L,int space,const char*mes){
+if(!lua_checkstack(L,space))
+luaL_error(L,"stack overflow (%s)",mes);
+}
+static void luaL_checktype(lua_State*L,int narg,int t){
+if(lua_type(L,narg)!=t)
+tag_error(L,narg,t);
+}
+static void luaL_checkany(lua_State*L,int narg){
+if(lua_type(L,narg)==(-1))
+luaL_argerror(L,narg,"value expected");
+}
+static const char*luaL_checklstring(lua_State*L,int narg,size_t*len){
+const char*s=lua_tolstring(L,narg,len);
+if(!s)tag_error(L,narg,4);
+return s;
+}
+static const char*luaL_optlstring(lua_State*L,int narg,
+const char*def,size_t*len){
+if(lua_isnoneornil(L,narg)){
+if(len)
+*len=(def?strlen(def):0);
+return def;
+}
+else return luaL_checklstring(L,narg,len);
+}
+static lua_Number luaL_checknumber(lua_State*L,int narg){
+lua_Number d=lua_tonumber(L,narg);
+if(d==0&&!lua_isnumber(L,narg))
+tag_error(L,narg,3);
+return d;
+}
+static lua_Integer luaL_checkinteger(lua_State*L,int narg){
+lua_Integer d=lua_tointeger(L,narg);
+if(d==0&&!lua_isnumber(L,narg))
+tag_error(L,narg,3);
+return d;
+}
+static lua_Integer luaL_optinteger(lua_State*L,int narg,
+lua_Integer def){
+return luaL_opt(L,luaL_checkinteger,narg,def);
+}
+static int luaL_getmetafield(lua_State*L,int obj,const char*event){
+if(!lua_getmetatable(L,obj))
+return 0;
+lua_pushstring(L,event);
+lua_rawget(L,-2);
+if(lua_isnil(L,-1)){
+lua_pop(L,2);
+return 0;
+}
+else{
+lua_remove(L,-2);
+return 1;
+}
+}
+static void luaL_register(lua_State*L,const char*libname,
+const luaL_Reg*l){
+luaI_openlib(L,libname,l,0);
+}
+static int libsize(const luaL_Reg*l){
+int size=0;
+for(;l->name;l++)size++;
+return size;
+}
+static void luaI_openlib(lua_State*L,const char*libname,
+const luaL_Reg*l,int nup){
+if(libname){
+int size=libsize(l);
+luaL_findtable(L,(-10000),"_LOADED",1);
+lua_getfield(L,-1,libname);
+if(!lua_istable(L,-1)){
+lua_pop(L,1);
+if(luaL_findtable(L,(-10002),libname,size)!=NULL)
+luaL_error(L,"name conflict for module "LUA_QL("%s"),libname);
+lua_pushvalue(L,-1);
+lua_setfield(L,-3,libname);
+}
+lua_remove(L,-2);
+lua_insert(L,-(nup+1));
+}
+for(;l->name;l++){
+int i;
+for(i=0;i<nup;i++)
+lua_pushvalue(L,-nup);
+lua_pushcclosure(L,l->func,nup);
+lua_setfield(L,-(nup+2),l->name);
+}
+lua_pop(L,nup);
+}
+static const char*luaL_findtable(lua_State*L,int idx,
+const char*fname,int szhint){
+const char*e;
+lua_pushvalue(L,idx);
+do{
+e=strchr(fname,'.');
+if(e==NULL)e=fname+strlen(fname);
+lua_pushlstring(L,fname,e-fname);
+lua_rawget(L,-2);
+if(lua_isnil(L,-1)){
+lua_pop(L,1);
+lua_createtable(L,0,(*e=='.'?1:szhint));
+lua_pushlstring(L,fname,e-fname);
+lua_pushvalue(L,-2);
+lua_settable(L,-4);
+}
+else if(!lua_istable(L,-1)){
+lua_pop(L,2);
+return fname;
+}
+lua_remove(L,-2);
+fname=e+1;
+}while(*e=='.');
+return NULL;
+}
+#define bufflen(B)((B)->p-(B)->buffer)
+#define bufffree(B)((size_t)(BUFSIZ-bufflen(B)))
+static int emptybuffer(luaL_Buffer*B){
+size_t l=bufflen(B);
+if(l==0)return 0;
+else{
+lua_pushlstring(B->L,B->buffer,l);
+B->p=B->buffer;
+B->lvl++;
+return 1;
+}
+}
+static void adjuststack(luaL_Buffer*B){
+if(B->lvl>1){
+lua_State*L=B->L;
+int toget=1;
+size_t toplen=lua_strlen(L,-1);
+do{
+size_t l=lua_strlen(L,-(toget+1));
+if(B->lvl-toget+1>=(20/2)||toplen>l){
+toplen+=l;
+toget++;
+}
+else break;
+}while(toget<B->lvl);
+lua_concat(L,toget);
+B->lvl=B->lvl-toget+1;
+}
+}
+static char*luaL_prepbuffer(luaL_Buffer*B){
+if(emptybuffer(B))
+adjuststack(B);
+return B->buffer;
+}
+static void luaL_addlstring(luaL_Buffer*B,const char*s,size_t l){
+while(l--)
+luaL_addchar(B,*s++);
+}
+static void luaL_pushresult(luaL_Buffer*B){
+emptybuffer(B);
+lua_concat(B->L,B->lvl);
+B->lvl=1;
+}
+static void luaL_addvalue(luaL_Buffer*B){
+lua_State*L=B->L;
+size_t vl;
+const char*s=lua_tolstring(L,-1,&vl);
+if(vl<=bufffree(B)){
+memcpy(B->p,s,vl);
+B->p+=vl;
+lua_pop(L,1);
+}
+else{
+if(emptybuffer(B))
+lua_insert(L,-2);
+B->lvl++;
+adjuststack(B);
+}
+}
+static void luaL_buffinit(lua_State*L,luaL_Buffer*B){
+B->L=L;
+B->p=B->buffer;
+B->lvl=0;
+}
+typedef struct LoadF{
+int extraline;
+FILE*f;
+char buff[BUFSIZ];
+}LoadF;
+static const char*getF(lua_State*L,void*ud,size_t*size){
+LoadF*lf=(LoadF*)ud;
+(void)L;
+if(lf->extraline){
+lf->extraline=0;
+*size=1;
+return"\n";
+}
+if(feof(lf->f))return NULL;
+*size=fread(lf->buff,1,sizeof(lf->buff),lf->f);
+return(*size>0)?lf->buff:NULL;
+}
+static int errfile(lua_State*L,const char*what,int fnameindex){
+const char*serr=strerror(errno);
+const char*filename=lua_tostring(L,fnameindex)+1;
+lua_pushfstring(L,"cannot %s %s: %s",what,filename,serr);
+lua_remove(L,fnameindex);
+return(5+1);
+}
+static int luaL_loadfile(lua_State*L,const char*filename){
+LoadF lf;
+int status,readstatus;
+int c;
+int fnameindex=lua_gettop(L)+1;
+lf.extraline=0;
+if(filename==NULL){
+lua_pushliteral(L,"=stdin");
+lf.f=stdin;
+}
+else{
+lua_pushfstring(L,"@%s",filename);
+lf.f=fopen(filename,"r");
+if(lf.f==NULL)return errfile(L,"open",fnameindex);
+}
+c=getc(lf.f);
+if(c=='#'){
+lf.extraline=1;
+while((c=getc(lf.f))!=EOF&&c!='\n');
+if(c=='\n')c=getc(lf.f);
+}
+if(c=="\033Lua"[0]&&filename){
+lf.f=freopen(filename,"rb",lf.f);
+if(lf.f==NULL)return errfile(L,"reopen",fnameindex);
+while((c=getc(lf.f))!=EOF&&c!="\033Lua"[0]);
+lf.extraline=0;
+}
+ungetc(c,lf.f);
+status=lua_load(L,getF,&lf,lua_tostring(L,-1));
+readstatus=ferror(lf.f);
+if(filename)fclose(lf.f);
+if(readstatus){
+lua_settop(L,fnameindex);
+return errfile(L,"read",fnameindex);
+}
+lua_remove(L,fnameindex);
+return status;
+}
+typedef struct LoadS{
+const char*s;
+size_t size;
+}LoadS;
+static const char*getS(lua_State*L,void*ud,size_t*size){
+LoadS*ls=(LoadS*)ud;
+(void)L;
+if(ls->size==0)return NULL;
+*size=ls->size;
+ls->size=0;
+return ls->s;
+}
+static int luaL_loadbuffer(lua_State*L,const char*buff,size_t size,
+const char*name){
+LoadS ls;
+ls.s=buff;
+ls.size=size;
+return lua_load(L,getS,&ls,name);
+}
+static void*l_alloc(void*ud,void*ptr,size_t osize,size_t nsize){
+(void)ud;
+(void)osize;
+if(nsize==0){
+free(ptr);
+return NULL;
+}
+else
+return realloc(ptr,nsize);
+}
+static int panic(lua_State*L){
+(void)L;
+fprintf(stderr,"PANIC: unprotected error in call to Lua API (%s)\n",
+lua_tostring(L,-1));
+return 0;
+}
+static lua_State*luaL_newstate(void){
+lua_State*L=lua_newstate(l_alloc,NULL);
+if(L)lua_atpanic(L,&panic);
+return L;
+}
+static int luaB_tonumber(lua_State*L){
+int base=luaL_optint(L,2,10);
+if(base==10){
+luaL_checkany(L,1);
+if(lua_isnumber(L,1)){
+lua_pushnumber(L,lua_tonumber(L,1));
+return 1;
+}
+}
+else{
+const char*s1=luaL_checkstring(L,1);
+char*s2;
+unsigned long n;
+luaL_argcheck(L,2<=base&&base<=36,2,"base out of range");
+n=strtoul(s1,&s2,base);
+if(s1!=s2){
+while(isspace((unsigned char)(*s2)))s2++;
+if(*s2=='\0'){
+lua_pushnumber(L,(lua_Number)n);
+return 1;
+}
+}
+}
+lua_pushnil(L);
+return 1;
+}
+static int luaB_error(lua_State*L){
+int level=luaL_optint(L,2,1);
+lua_settop(L,1);
+if(lua_isstring(L,1)&&level>0){
+luaL_where(L,level);
+lua_pushvalue(L,1);
+lua_concat(L,2);
+}
+return lua_error(L);
+}
+static int luaB_setmetatable(lua_State*L){
+int t=lua_type(L,2);
+luaL_checktype(L,1,5);
+luaL_argcheck(L,t==0||t==5,2,
+"nil or table expected");
+if(luaL_getmetafield(L,1,"__metatable"))
+luaL_error(L,"cannot change a protected metatable");
+lua_settop(L,2);
+lua_setmetatable(L,1);
+return 1;
+}
+static void getfunc(lua_State*L,int opt){
+if(lua_isfunction(L,1))lua_pushvalue(L,1);
+else{
+lua_Debug ar;
+int level=opt?luaL_optint(L,1,1):luaL_checkint(L,1);
+luaL_argcheck(L,level>=0,1,"level must be non-negative");
+if(lua_getstack(L,level,&ar)==0)
+luaL_argerror(L,1,"invalid level");
+lua_getinfo(L,"f",&ar);
+if(lua_isnil(L,-1))
+luaL_error(L,"no function environment for tail call at level %d",
+level);
+}
+}
+static int luaB_setfenv(lua_State*L){
+luaL_checktype(L,2,5);
+getfunc(L,0);
+lua_pushvalue(L,2);
+if(lua_isnumber(L,1)&&lua_tonumber(L,1)==0){
+lua_pushthread(L);
+lua_insert(L,-2);
+lua_setfenv(L,-2);
+return 0;
+}
+else if(lua_iscfunction(L,-2)||lua_setfenv(L,-2)==0)
+luaL_error(L,
+LUA_QL("setfenv")" cannot change environment of given object");
+return 1;
+}
+static int luaB_rawget(lua_State*L){
+luaL_checktype(L,1,5);
+luaL_checkany(L,2);
+lua_settop(L,2);
+lua_rawget(L,1);
+return 1;
+}
+static int luaB_type(lua_State*L){
+luaL_checkany(L,1);
+lua_pushstring(L,luaL_typename(L,1));
+return 1;
+}
+static int luaB_next(lua_State*L){
+luaL_checktype(L,1,5);
+lua_settop(L,2);
+if(lua_next(L,1))
+return 2;
+else{
+lua_pushnil(L);
+return 1;
+}
+}
+static int luaB_pairs(lua_State*L){
+luaL_checktype(L,1,5);
+lua_pushvalue(L,lua_upvalueindex(1));
+lua_pushvalue(L,1);
+lua_pushnil(L);
+return 3;
+}
+static int ipairsaux(lua_State*L){
+int i=luaL_checkint(L,2);
+luaL_checktype(L,1,5);
+i++;
+lua_pushinteger(L,i);
+lua_rawgeti(L,1,i);
+return(lua_isnil(L,-1))?0:2;
+}
+static int luaB_ipairs(lua_State*L){
+luaL_checktype(L,1,5);
+lua_pushvalue(L,lua_upvalueindex(1));
+lua_pushvalue(L,1);
+lua_pushinteger(L,0);
+return 3;
+}
+static int load_aux(lua_State*L,int status){
+if(status==0)
+return 1;
+else{
+lua_pushnil(L);
+lua_insert(L,-2);
+return 2;
+}
+}
+static int luaB_loadstring(lua_State*L){
+size_t l;
+const char*s=luaL_checklstring(L,1,&l);
+const char*chunkname=luaL_optstring(L,2,s);
+return load_aux(L,luaL_loadbuffer(L,s,l,chunkname));
+}
+static int luaB_loadfile(lua_State*L){
+const char*fname=luaL_optstring(L,1,NULL);
+return load_aux(L,luaL_loadfile(L,fname));
+}
+static int luaB_assert(lua_State*L){
+luaL_checkany(L,1);
+if(!lua_toboolean(L,1))
+return luaL_error(L,"%s",luaL_optstring(L,2,"assertion failed!"));
+return lua_gettop(L);
+}
+static int luaB_unpack(lua_State*L){
+int i,e,n;
+luaL_checktype(L,1,5);
+i=luaL_optint(L,2,1);
+e=luaL_opt(L,luaL_checkint,3,luaL_getn(L,1));
+if(i>e)return 0;
+n=e-i+1;
+if(n<=0||!lua_checkstack(L,n))
+return luaL_error(L,"too many results to unpack");
+lua_rawgeti(L,1,i);
+while(i++<e)
+lua_rawgeti(L,1,i);
+return n;
+}
+static int luaB_pcall(lua_State*L){
+int status;
+luaL_checkany(L,1);
+status=lua_pcall(L,lua_gettop(L)-1,(-1),0);
+lua_pushboolean(L,(status==0));
+lua_insert(L,1);
+return lua_gettop(L);
+}
+static int luaB_newproxy(lua_State*L){
+lua_settop(L,1);
+lua_newuserdata(L,0);
+if(lua_toboolean(L,1)==0)
+return 1;
+else if(lua_isboolean(L,1)){
+lua_newtable(L);
+lua_pushvalue(L,-1);
+lua_pushboolean(L,1);
+lua_rawset(L,lua_upvalueindex(1));
+}
+else{
+int validproxy=0;
+if(lua_getmetatable(L,1)){
+lua_rawget(L,lua_upvalueindex(1));
+validproxy=lua_toboolean(L,-1);
+lua_pop(L,1);
+}
+luaL_argcheck(L,validproxy,1,"boolean or proxy expected");
+lua_getmetatable(L,1);
+}
+lua_setmetatable(L,2);
+return 1;
+}
+static const luaL_Reg base_funcs[]={
+{"assert",luaB_assert},
+{"error",luaB_error},
+{"loadfile",luaB_loadfile},
+{"loadstring",luaB_loadstring},
+{"next",luaB_next},
+{"pcall",luaB_pcall},
+{"rawget",luaB_rawget},
+{"setfenv",luaB_setfenv},
+{"setmetatable",luaB_setmetatable},
+{"tonumber",luaB_tonumber},
+{"type",luaB_type},
+{"unpack",luaB_unpack},
+{NULL,NULL}
+};
+static void auxopen(lua_State*L,const char*name,
+lua_CFunction f,lua_CFunction u){
+lua_pushcfunction(L,u);
+lua_pushcclosure(L,f,1);
+lua_setfield(L,-2,name);
+}
+static void base_open(lua_State*L){
+lua_pushvalue(L,(-10002));
+lua_setglobal(L,"_G");
+luaL_register(L,"_G",base_funcs);
+lua_pushliteral(L,"Lua 5.1");
+lua_setglobal(L,"_VERSION");
+auxopen(L,"ipairs",luaB_ipairs,ipairsaux);
+auxopen(L,"pairs",luaB_pairs,luaB_next);
+lua_createtable(L,0,1);
+lua_pushvalue(L,-1);
+lua_setmetatable(L,-2);
+lua_pushliteral(L,"kv");
+lua_setfield(L,-2,"__mode");
+lua_pushcclosure(L,luaB_newproxy,1);
+lua_setglobal(L,"newproxy");
+}
+static int luaopen_base(lua_State*L){
+base_open(L);
+return 1;
+}
+#define aux_getn(L,n)(luaL_checktype(L,n,5),luaL_getn(L,n))
+static int tinsert(lua_State*L){
+int e=aux_getn(L,1)+1;
+int pos;
+switch(lua_gettop(L)){
+case 2:{
+pos=e;
+break;
+}
+case 3:{
+int i;
+pos=luaL_checkint(L,2);
+if(pos>e)e=pos;
+for(i=e;i>pos;i--){
+lua_rawgeti(L,1,i-1);
+lua_rawseti(L,1,i);
+}
+break;
+}
+default:{
+return luaL_error(L,"wrong number of arguments to "LUA_QL("insert"));
+}
+}
+luaL_setn(L,1,e);
+lua_rawseti(L,1,pos);
+return 0;
+}
+static int tremove(lua_State*L){
+int e=aux_getn(L,1);
+int pos=luaL_optint(L,2,e);
+if(!(1<=pos&&pos<=e))
+return 0;
+luaL_setn(L,1,e-1);
+lua_rawgeti(L,1,pos);
+for(;pos<e;pos++){
+lua_rawgeti(L,1,pos+1);
+lua_rawseti(L,1,pos);
+}
+lua_pushnil(L);
+lua_rawseti(L,1,e);
+return 1;
+}
+static void addfield(lua_State*L,luaL_Buffer*b,int i){
+lua_rawgeti(L,1,i);
+if(!lua_isstring(L,-1))
+luaL_error(L,"invalid value (%s) at index %d in table for "
+LUA_QL("concat"),luaL_typename(L,-1),i);
+luaL_addvalue(b);
+}
+static int tconcat(lua_State*L){
+luaL_Buffer b;
+size_t lsep;
+int i,last;
+const char*sep=luaL_optlstring(L,2,"",&lsep);
+luaL_checktype(L,1,5);
+i=luaL_optint(L,3,1);
+last=luaL_opt(L,luaL_checkint,4,luaL_getn(L,1));
+luaL_buffinit(L,&b);
+for(;i<last;i++){
+addfield(L,&b,i);
+luaL_addlstring(&b,sep,lsep);
+}
+if(i==last)
+addfield(L,&b,i);
+luaL_pushresult(&b);
+return 1;
+}
+static void set2(lua_State*L,int i,int j){
+lua_rawseti(L,1,i);
+lua_rawseti(L,1,j);
+}
+static int sort_comp(lua_State*L,int a,int b){
+if(!lua_isnil(L,2)){
+int res;
+lua_pushvalue(L,2);
+lua_pushvalue(L,a-1);
+lua_pushvalue(L,b-2);
+lua_call(L,2,1);
+res=lua_toboolean(L,-1);
+lua_pop(L,1);
+return res;
+}
+else
+return lua_lessthan(L,a,b);
+}
+static void auxsort(lua_State*L,int l,int u){
+while(l<u){
+int i,j;
+lua_rawgeti(L,1,l);
+lua_rawgeti(L,1,u);
+if(sort_comp(L,-1,-2))
+set2(L,l,u);
+else
+lua_pop(L,2);
+if(u-l==1)break;
+i=(l+u)/2;
+lua_rawgeti(L,1,i);
+lua_rawgeti(L,1,l);
+if(sort_comp(L,-2,-1))
+set2(L,i,l);
+else{
+lua_pop(L,1);
+lua_rawgeti(L,1,u);
+if(sort_comp(L,-1,-2))
+set2(L,i,u);
+else
+lua_pop(L,2);
+}
+if(u-l==2)break;
+lua_rawgeti(L,1,i);
+lua_pushvalue(L,-1);
+lua_rawgeti(L,1,u-1);
+set2(L,i,u-1);
+i=l;j=u-1;
+for(;;){
+while(lua_rawgeti(L,1,++i),sort_comp(L,-1,-2)){
+if(i>u)luaL_error(L,"invalid order function for sorting");
+lua_pop(L,1);
+}
+while(lua_rawgeti(L,1,--j),sort_comp(L,-3,-1)){
+if(j<l)luaL_error(L,"invalid order function for sorting");
+lua_pop(L,1);
+}
+if(j<i){
+lua_pop(L,3);
+break;
+}
+set2(L,i,j);
+}
+lua_rawgeti(L,1,u-1);
+lua_rawgeti(L,1,i);
+set2(L,u-1,i);
+if(i-l<u-i){
+j=l;i=i-1;l=i+2;
+}
+else{
+j=i+1;i=u;u=j-2;
+}
+auxsort(L,j,i);
+}
+}
+static int sort(lua_State*L){
+int n=aux_getn(L,1);
+luaL_checkstack(L,40,"");
+if(!lua_isnoneornil(L,2))
+luaL_checktype(L,2,6);
+lua_settop(L,2);
+auxsort(L,1,n);
+return 0;
+}
+static const luaL_Reg tab_funcs[]={
+{"concat",tconcat},
+{"insert",tinsert},
+{"remove",tremove},
+{"sort",sort},
+{NULL,NULL}
+};
+static int luaopen_table(lua_State*L){
+luaL_register(L,"table",tab_funcs);
+return 1;
+}
+static const char*const fnames[]={"input","output"};
+static int pushresult(lua_State*L,int i,const char*filename){
+int en=errno;
+if(i){
+lua_pushboolean(L,1);
+return 1;
+}
+else{
+lua_pushnil(L);
+if(filename)
+lua_pushfstring(L,"%s: %s",filename,strerror(en));
+else
+lua_pushfstring(L,"%s",strerror(en));
+lua_pushinteger(L,en);
+return 3;
+}
+}
+static void fileerror(lua_State*L,int arg,const char*filename){
+lua_pushfstring(L,"%s: %s",filename,strerror(errno));
+luaL_argerror(L,arg,lua_tostring(L,-1));
+}
+#define tofilep(L)((FILE**)luaL_checkudata(L,1,"FILE*"))
+static int io_type(lua_State*L){
+void*ud;
+luaL_checkany(L,1);
+ud=lua_touserdata(L,1);
+lua_getfield(L,(-10000),"FILE*");
+if(ud==NULL||!lua_getmetatable(L,1)||!lua_rawequal(L,-2,-1))
+lua_pushnil(L);
+else if(*((FILE**)ud)==NULL)
+lua_pushliteral(L,"closed file");
+else
+lua_pushliteral(L,"file");
+return 1;
+}
+static FILE*tofile(lua_State*L){
+FILE**f=tofilep(L);
+if(*f==NULL)
+luaL_error(L,"attempt to use a closed file");
+return*f;
+}
+static FILE**newfile(lua_State*L){
+FILE**pf=(FILE**)lua_newuserdata(L,sizeof(FILE*));
+*pf=NULL;
+luaL_getmetatable(L,"FILE*");
+lua_setmetatable(L,-2);
+return pf;
+}
+static int io_noclose(lua_State*L){
+lua_pushnil(L);
+lua_pushliteral(L,"cannot close standard file");
+return 2;
+}
+static int io_pclose(lua_State*L){
+FILE**p=tofilep(L);
+int ok=lua_pclose(L,*p);
+*p=NULL;
+return pushresult(L,ok,NULL);
+}
+static int io_fclose(lua_State*L){
+FILE**p=tofilep(L);
+int ok=(fclose(*p)==0);
+*p=NULL;
+return pushresult(L,ok,NULL);
+}
+static int aux_close(lua_State*L){
+lua_getfenv(L,1);
+lua_getfield(L,-1,"__close");
+return(lua_tocfunction(L,-1))(L);
+}
+static int io_close(lua_State*L){
+if(lua_isnone(L,1))
+lua_rawgeti(L,(-10001),2);
+tofile(L);
+return aux_close(L);
+}
+static int io_gc(lua_State*L){
+FILE*f=*tofilep(L);
+if(f!=NULL)
+aux_close(L);
+return 0;
+}
+static int io_open(lua_State*L){
+const char*filename=luaL_checkstring(L,1);
+const char*mode=luaL_optstring(L,2,"r");
+FILE**pf=newfile(L);
+*pf=fopen(filename,mode);
+return(*pf==NULL)?pushresult(L,0,filename):1;
+}
+static FILE*getiofile(lua_State*L,int findex){
+FILE*f;
+lua_rawgeti(L,(-10001),findex);
+f=*(FILE**)lua_touserdata(L,-1);
+if(f==NULL)
+luaL_error(L,"standard %s file is closed",fnames[findex-1]);
+return f;
+}
+static int g_iofile(lua_State*L,int f,const char*mode){
+if(!lua_isnoneornil(L,1)){
+const char*filename=lua_tostring(L,1);
+if(filename){
+FILE**pf=newfile(L);
+*pf=fopen(filename,mode);
+if(*pf==NULL)
+fileerror(L,1,filename);
+}
+else{
+tofile(L);
+lua_pushvalue(L,1);
+}
+lua_rawseti(L,(-10001),f);
+}
+lua_rawgeti(L,(-10001),f);
+return 1;
+}
+static int io_input(lua_State*L){
+return g_iofile(L,1,"r");
+}
+static int io_output(lua_State*L){
+return g_iofile(L,2,"w");
+}
+static int io_readline(lua_State*L);
+static void aux_lines(lua_State*L,int idx,int toclose){
+lua_pushvalue(L,idx);
+lua_pushboolean(L,toclose);
+lua_pushcclosure(L,io_readline,2);
+}
+static int f_lines(lua_State*L){
+tofile(L);
+aux_lines(L,1,0);
+return 1;
+}
+static int io_lines(lua_State*L){
+if(lua_isnoneornil(L,1)){
+lua_rawgeti(L,(-10001),1);
+return f_lines(L);
+}
+else{
+const char*filename=luaL_checkstring(L,1);
+FILE**pf=newfile(L);
+*pf=fopen(filename,"r");
+if(*pf==NULL)
+fileerror(L,1,filename);
+aux_lines(L,lua_gettop(L),1);
+return 1;
+}
+}
+static int read_number(lua_State*L,FILE*f){
+lua_Number d;
+if(fscanf(f,"%lf",&d)==1){
+lua_pushnumber(L,d);
+return 1;
+}
+else{
+lua_pushnil(L);
+return 0;
+}
+}
+static int test_eof(lua_State*L,FILE*f){
+int c=getc(f);
+ungetc(c,f);
+lua_pushlstring(L,NULL,0);
+return(c!=EOF);
+}
+static int read_line(lua_State*L,FILE*f){
+luaL_Buffer b;
+luaL_buffinit(L,&b);
+for(;;){
+size_t l;
+char*p=luaL_prepbuffer(&b);
+if(fgets(p,BUFSIZ,f)==NULL){
+luaL_pushresult(&b);
+return(lua_objlen(L,-1)>0);
+}
+l=strlen(p);
+if(l==0||p[l-1]!='\n')
+luaL_addsize(&b,l);
+else{
+luaL_addsize(&b,l-1);
+luaL_pushresult(&b);
+return 1;
+}
+}
+}
+static int read_chars(lua_State*L,FILE*f,size_t n){
+size_t rlen;
+size_t nr;
+luaL_Buffer b;
+luaL_buffinit(L,&b);
+rlen=BUFSIZ;
+do{
+char*p=luaL_prepbuffer(&b);
+if(rlen>n)rlen=n;
+nr=fread(p,sizeof(char),rlen,f);
+luaL_addsize(&b,nr);
+n-=nr;
+}while(n>0&&nr==rlen);
+luaL_pushresult(&b);
+return(n==0||lua_objlen(L,-1)>0);
+}
+static int g_read(lua_State*L,FILE*f,int first){
+int nargs=lua_gettop(L)-1;
+int success;
+int n;
+clearerr(f);
+if(nargs==0){
+success=read_line(L,f);
+n=first+1;
+}
+else{
+luaL_checkstack(L,nargs+20,"too many arguments");
+success=1;
+for(n=first;nargs--&&success;n++){
+if(lua_type(L,n)==3){
+size_t l=(size_t)lua_tointeger(L,n);
+success=(l==0)?test_eof(L,f):read_chars(L,f,l);
+}
+else{
+const char*p=lua_tostring(L,n);
+luaL_argcheck(L,p&&p[0]=='*',n,"invalid option");
+switch(p[1]){
+case'n':
+success=read_number(L,f);
+break;
+case'l':
+success=read_line(L,f);
+break;
+case'a':
+read_chars(L,f,~((size_t)0));
+success=1;
+break;
+default:
+return luaL_argerror(L,n,"invalid format");
+}
+}
+}
+}
+if(ferror(f))
+return pushresult(L,0,NULL);
+if(!success){
+lua_pop(L,1);
+lua_pushnil(L);
+}
+return n-first;
+}
+static int io_read(lua_State*L){
+return g_read(L,getiofile(L,1),1);
+}
+static int f_read(lua_State*L){
+return g_read(L,tofile(L),2);
+}
+static int io_readline(lua_State*L){
+FILE*f=*(FILE**)lua_touserdata(L,lua_upvalueindex(1));
+int sucess;
+if(f==NULL)
+luaL_error(L,"file is already closed");
+sucess=read_line(L,f);
+if(ferror(f))
+return luaL_error(L,"%s",strerror(errno));
+if(sucess)return 1;
+else{
+if(lua_toboolean(L,lua_upvalueindex(2))){
+lua_settop(L,0);
+lua_pushvalue(L,lua_upvalueindex(1));
+aux_close(L);
+}
+return 0;
+}
+}
+static int g_write(lua_State*L,FILE*f,int arg){
+int nargs=lua_gettop(L)-1;
+int status=1;
+for(;nargs--;arg++){
+if(lua_type(L,arg)==3){
+status=status&&
+fprintf(f,"%.14g",lua_tonumber(L,arg))>0;
+}
+else{
+size_t l;
+const char*s=luaL_checklstring(L,arg,&l);
+status=status&&(fwrite(s,sizeof(char),l,f)==l);
+}
+}
+return pushresult(L,status,NULL);
+}
+static int io_write(lua_State*L){
+return g_write(L,getiofile(L,2),1);
+}
+static int f_write(lua_State*L){
+return g_write(L,tofile(L),2);
+}
+static int io_flush(lua_State*L){
+return pushresult(L,fflush(getiofile(L,2))==0,NULL);
+}
+static int f_flush(lua_State*L){
+return pushresult(L,fflush(tofile(L))==0,NULL);
+}
+static const luaL_Reg iolib[]={
+{"close",io_close},
+{"flush",io_flush},
+{"input",io_input},
+{"lines",io_lines},
+{"open",io_open},
+{"output",io_output},
+{"read",io_read},
+{"type",io_type},
+{"write",io_write},
+{NULL,NULL}
+};
+static const luaL_Reg flib[]={
+{"close",io_close},
+{"flush",f_flush},
+{"lines",f_lines},
+{"read",f_read},
+{"write",f_write},
+{"__gc",io_gc},
+{NULL,NULL}
+};
+static void createmeta(lua_State*L){
+luaL_newmetatable(L,"FILE*");
+lua_pushvalue(L,-1);
+lua_setfield(L,-2,"__index");
+luaL_register(L,NULL,flib);
+}
+static void createstdfile(lua_State*L,FILE*f,int k,const char*fname){
+*newfile(L)=f;
+if(k>0){
+lua_pushvalue(L,-1);
+lua_rawseti(L,(-10001),k);
+}
+lua_pushvalue(L,-2);
+lua_setfenv(L,-2);
+lua_setfield(L,-3,fname);
+}
+static void newfenv(lua_State*L,lua_CFunction cls){
+lua_createtable(L,0,1);
+lua_pushcfunction(L,cls);
+lua_setfield(L,-2,"__close");
+}
+static int luaopen_io(lua_State*L){
+createmeta(L);
+newfenv(L,io_fclose);
+lua_replace(L,(-10001));
+luaL_register(L,"io",iolib);
+newfenv(L,io_noclose);
+createstdfile(L,stdin,1,"stdin");
+createstdfile(L,stdout,2,"stdout");
+createstdfile(L,stderr,0,"stderr");
+lua_pop(L,1);
+lua_getfield(L,-1,"popen");
+newfenv(L,io_pclose);
+lua_setfenv(L,-2);
+lua_pop(L,1);
+return 1;
+}
+static int os_pushresult(lua_State*L,int i,const char*filename){
+int en=errno;
+if(i){
+lua_pushboolean(L,1);
+return 1;
+}
+else{
+lua_pushnil(L);
+lua_pushfstring(L,"%s: %s",filename,strerror(en));
+lua_pushinteger(L,en);
+return 3;
+}
+}
+static int os_remove(lua_State*L){
+const char*filename=luaL_checkstring(L,1);
+return os_pushresult(L,remove(filename)==0,filename);
+}
+static int os_exit(lua_State*L){
+exit(luaL_optint(L,1,EXIT_SUCCESS));
+}
+static const luaL_Reg syslib[]={
+{"exit",os_exit},
+{"remove",os_remove},
+{NULL,NULL}
+};
+static int luaopen_os(lua_State*L){
+luaL_register(L,"os",syslib);
+return 1;
+}
+#define uchar(c)((unsigned char)(c))
+static ptrdiff_t posrelat(ptrdiff_t pos,size_t len){
+if(pos<0)pos+=(ptrdiff_t)len+1;
+return(pos>=0)?pos:0;
+}
+static int str_sub(lua_State*L){
+size_t l;
+const char*s=luaL_checklstring(L,1,&l);
+ptrdiff_t start=posrelat(luaL_checkinteger(L,2),l);
+ptrdiff_t end=posrelat(luaL_optinteger(L,3,-1),l);
+if(start<1)start=1;
+if(end>(ptrdiff_t)l)end=(ptrdiff_t)l;
+if(start<=end)
+lua_pushlstring(L,s+start-1,end-start+1);
+else lua_pushliteral(L,"");
+return 1;
+}
+static int str_lower(lua_State*L){
+size_t l;
+size_t i;
+luaL_Buffer b;
+const char*s=luaL_checklstring(L,1,&l);
+luaL_buffinit(L,&b);
+for(i=0;i<l;i++)
+luaL_addchar(&b,tolower(uchar(s[i])));
+luaL_pushresult(&b);
+return 1;
+}
+static int str_upper(lua_State*L){
+size_t l;
+size_t i;
+luaL_Buffer b;
+const char*s=luaL_checklstring(L,1,&l);
+luaL_buffinit(L,&b);
+for(i=0;i<l;i++)
+luaL_addchar(&b,toupper(uchar(s[i])));
+luaL_pushresult(&b);
+return 1;
+}
+static int str_rep(lua_State*L){
+size_t l;
+luaL_Buffer b;
+const char*s=luaL_checklstring(L,1,&l);
+int n=luaL_checkint(L,2);
+luaL_buffinit(L,&b);
+while(n-->0)
+luaL_addlstring(&b,s,l);
+luaL_pushresult(&b);
+return 1;
+}
+static int str_byte(lua_State*L){
+size_t l;
+const char*s=luaL_checklstring(L,1,&l);
+ptrdiff_t posi=posrelat(luaL_optinteger(L,2,1),l);
+ptrdiff_t pose=posrelat(luaL_optinteger(L,3,posi),l);
+int n,i;
+if(posi<=0)posi=1;
+if((size_t)pose>l)pose=l;
+if(posi>pose)return 0;
+n=(int)(pose-posi+1);
+if(posi+n<=pose)
+luaL_error(L,"string slice too long");
+luaL_checkstack(L,n,"string slice too long");
+for(i=0;i<n;i++)
+lua_pushinteger(L,uchar(s[posi+i-1]));
+return n;
+}
+static int str_char(lua_State*L){
+int n=lua_gettop(L);
+int i;
+luaL_Buffer b;
+luaL_buffinit(L,&b);
+for(i=1;i<=n;i++){
+int c=luaL_checkint(L,i);
+luaL_argcheck(L,uchar(c)==c,i,"invalid value");
+luaL_addchar(&b,uchar(c));
+}
+luaL_pushresult(&b);
+return 1;
+}
+typedef struct MatchState{
+const char*src_init;
+const char*src_end;
+lua_State*L;
+int level;
+struct{
+const char*init;
+ptrdiff_t len;
+}capture[32];
+}MatchState;
+static int check_capture(MatchState*ms,int l){
+l-='1';
+if(l<0||l>=ms->level||ms->capture[l].len==(-1))
+return luaL_error(ms->L,"invalid capture index");
+return l;
+}
+static int capture_to_close(MatchState*ms){
+int level=ms->level;
+for(level--;level>=0;level--)
+if(ms->capture[level].len==(-1))return level;
+return luaL_error(ms->L,"invalid pattern capture");
+}
+static const char*classend(MatchState*ms,const char*p){
+switch(*p++){
+case'%':{
+if(*p=='\0')
+luaL_error(ms->L,"malformed pattern (ends with "LUA_QL("%%")")");
+return p+1;
+}
+case'[':{
+if(*p=='^')p++;
+do{
+if(*p=='\0')
+luaL_error(ms->L,"malformed pattern (missing "LUA_QL("]")")");
+if(*(p++)=='%'&&*p!='\0')
+p++;
+}while(*p!=']');
+return p+1;
+}
+default:{
+return p;
+}
+}
+}
+static int match_class(int c,int cl){
+int res;
+switch(tolower(cl)){
+case'a':res=isalpha(c);break;
+case'c':res=iscntrl(c);break;
+case'd':res=isdigit(c);break;
+case'l':res=islower(c);break;
+case'p':res=ispunct(c);break;
+case's':res=isspace(c);break;
+case'u':res=isupper(c);break;
+case'w':res=isalnum(c);break;
+case'x':res=isxdigit(c);break;
+case'z':res=(c==0);break;
+default:return(cl==c);
+}
+return(islower(cl)?res:!res);
+}
+static int matchbracketclass(int c,const char*p,const char*ec){
+int sig=1;
+if(*(p+1)=='^'){
+sig=0;
+p++;
+}
+while(++p<ec){
+if(*p=='%'){
+p++;
+if(match_class(c,uchar(*p)))
+return sig;
+}
+else if((*(p+1)=='-')&&(p+2<ec)){
+p+=2;
+if(uchar(*(p-2))<=c&&c<=uchar(*p))
+return sig;
+}
+else if(uchar(*p)==c)return sig;
+}
+return!sig;
+}
+static int singlematch(int c,const char*p,const char*ep){
+switch(*p){
+case'.':return 1;
+case'%':return match_class(c,uchar(*(p+1)));
+case'[':return matchbracketclass(c,p,ep-1);
+default:return(uchar(*p)==c);
+}
+}
+static const char*match(MatchState*ms,const char*s,const char*p);
+static const char*matchbalance(MatchState*ms,const char*s,
+const char*p){
+if(*p==0||*(p+1)==0)
+luaL_error(ms->L,"unbalanced pattern");
+if(*s!=*p)return NULL;
+else{
+int b=*p;
+int e=*(p+1);
+int cont=1;
+while(++s<ms->src_end){
+if(*s==e){
+if(--cont==0)return s+1;
+}
+else if(*s==b)cont++;
+}
+}
+return NULL;
+}
+static const char*max_expand(MatchState*ms,const char*s,
+const char*p,const char*ep){
+ptrdiff_t i=0;
+while((s+i)<ms->src_end&&singlematch(uchar(*(s+i)),p,ep))
+i++;
+while(i>=0){
+const char*res=match(ms,(s+i),ep+1);
+if(res)return res;
+i--;
+}
+return NULL;
+}
+static const char*min_expand(MatchState*ms,const char*s,
+const char*p,const char*ep){
+for(;;){
+const char*res=match(ms,s,ep+1);
+if(res!=NULL)
+return res;
+else if(s<ms->src_end&&singlematch(uchar(*s),p,ep))
+s++;
+else return NULL;
+}
+}
+static const char*start_capture(MatchState*ms,const char*s,
+const char*p,int what){
+const char*res;
+int level=ms->level;
+if(level>=32)luaL_error(ms->L,"too many captures");
+ms->capture[level].init=s;
+ms->capture[level].len=what;
+ms->level=level+1;
+if((res=match(ms,s,p))==NULL)
+ms->level--;
+return res;
+}
+static const char*end_capture(MatchState*ms,const char*s,
+const char*p){
+int l=capture_to_close(ms);
+const char*res;
+ms->capture[l].len=s-ms->capture[l].init;
+if((res=match(ms,s,p))==NULL)
+ms->capture[l].len=(-1);
+return res;
+}
+static const char*match_capture(MatchState*ms,const char*s,int l){
+size_t len;
+l=check_capture(ms,l);
+len=ms->capture[l].len;
+if((size_t)(ms->src_end-s)>=len&&
+memcmp(ms->capture[l].init,s,len)==0)
+return s+len;
+else return NULL;
+}
+static const char*match(MatchState*ms,const char*s,const char*p){
+init:
+switch(*p){
+case'(':{
+if(*(p+1)==')')
+return start_capture(ms,s,p+2,(-2));
+else
+return start_capture(ms,s,p+1,(-1));
+}
+case')':{
+return end_capture(ms,s,p+1);
+}
+case'%':{
+switch(*(p+1)){
+case'b':{
+s=matchbalance(ms,s,p+2);
+if(s==NULL)return NULL;
+p+=4;goto init;
+}
+case'f':{
+const char*ep;char previous;
+p+=2;
+if(*p!='[')
+luaL_error(ms->L,"missing "LUA_QL("[")" after "
+LUA_QL("%%f")" in pattern");
+ep=classend(ms,p);
+previous=(s==ms->src_init)?'\0':*(s-1);
+if(matchbracketclass(uchar(previous),p,ep-1)||
+!matchbracketclass(uchar(*s),p,ep-1))return NULL;
+p=ep;goto init;
+}
+default:{
+if(isdigit(uchar(*(p+1)))){
+s=match_capture(ms,s,uchar(*(p+1)));
+if(s==NULL)return NULL;
+p+=2;goto init;
+}
+goto dflt;
+}
+}
+}
+case'\0':{
+return s;
+}
+case'$':{
+if(*(p+1)=='\0')
+return(s==ms->src_end)?s:NULL;
+else goto dflt;
+}
+default:dflt:{
+const char*ep=classend(ms,p);
+int m=s<ms->src_end&&singlematch(uchar(*s),p,ep);
+switch(*ep){
+case'?':{
+const char*res;
+if(m&&((res=match(ms,s+1,ep+1))!=NULL))
+return res;
+p=ep+1;goto init;
+}
+case'*':{
+return max_expand(ms,s,p,ep);
+}
+case'+':{
+return(m?max_expand(ms,s+1,p,ep):NULL);
+}
+case'-':{
+return min_expand(ms,s,p,ep);
+}
+default:{
+if(!m)return NULL;
+s++;p=ep;goto init;
+}
+}
+}
+}
+}
+static const char*lmemfind(const char*s1,size_t l1,
+const char*s2,size_t l2){
+if(l2==0)return s1;
+else if(l2>l1)return NULL;
+else{
+const char*init;
+l2--;
+l1=l1-l2;
+while(l1>0&&(init=(const char*)memchr(s1,*s2,l1))!=NULL){
+init++;
+if(memcmp(init,s2+1,l2)==0)
+return init-1;
+else{
+l1-=init-s1;
+s1=init;
+}
+}
+return NULL;
+}
+}
+static void push_onecapture(MatchState*ms,int i,const char*s,
+const char*e){
+if(i>=ms->level){
+if(i==0)
+lua_pushlstring(ms->L,s,e-s);
+else
+luaL_error(ms->L,"invalid capture index");
+}
+else{
+ptrdiff_t l=ms->capture[i].len;
+if(l==(-1))luaL_error(ms->L,"unfinished capture");
+if(l==(-2))
+lua_pushinteger(ms->L,ms->capture[i].init-ms->src_init+1);
+else
+lua_pushlstring(ms->L,ms->capture[i].init,l);
+}
+}
+static int push_captures(MatchState*ms,const char*s,const char*e){
+int i;
+int nlevels=(ms->level==0&&s)?1:ms->level;
+luaL_checkstack(ms->L,nlevels,"too many captures");
+for(i=0;i<nlevels;i++)
+push_onecapture(ms,i,s,e);
+return nlevels;
+}
+static int str_find_aux(lua_State*L,int find){
+size_t l1,l2;
+const char*s=luaL_checklstring(L,1,&l1);
+const char*p=luaL_checklstring(L,2,&l2);
+ptrdiff_t init=posrelat(luaL_optinteger(L,3,1),l1)-1;
+if(init<0)init=0;
+else if((size_t)(init)>l1)init=(ptrdiff_t)l1;
+if(find&&(lua_toboolean(L,4)||
+strpbrk(p,"^$*+?.([%-")==NULL)){
+const char*s2=lmemfind(s+init,l1-init,p,l2);
+if(s2){
+lua_pushinteger(L,s2-s+1);
+lua_pushinteger(L,s2-s+l2);
+return 2;
+}
+}
+else{
+MatchState ms;
+int anchor=(*p=='^')?(p++,1):0;
+const char*s1=s+init;
+ms.L=L;
+ms.src_init=s;
+ms.src_end=s+l1;
+do{
+const char*res;
+ms.level=0;
+if((res=match(&ms,s1,p))!=NULL){
+if(find){
+lua_pushinteger(L,s1-s+1);
+lua_pushinteger(L,res-s);
+return push_captures(&ms,NULL,0)+2;
+}
+else
+return push_captures(&ms,s1,res);
+}
+}while(s1++<ms.src_end&&!anchor);
+}
+lua_pushnil(L);
+return 1;
+}
+static int str_find(lua_State*L){
+return str_find_aux(L,1);
+}
+static int str_match(lua_State*L){
+return str_find_aux(L,0);
+}
+static int gmatch_aux(lua_State*L){
+MatchState ms;
+size_t ls;
+const char*s=lua_tolstring(L,lua_upvalueindex(1),&ls);
+const char*p=lua_tostring(L,lua_upvalueindex(2));
+const char*src;
+ms.L=L;
+ms.src_init=s;
+ms.src_end=s+ls;
+for(src=s+(size_t)lua_tointeger(L,lua_upvalueindex(3));
+src<=ms.src_end;
+src++){
+const char*e;
+ms.level=0;
+if((e=match(&ms,src,p))!=NULL){
+lua_Integer newstart=e-s;
+if(e==src)newstart++;
+lua_pushinteger(L,newstart);
+lua_replace(L,lua_upvalueindex(3));
+return push_captures(&ms,src,e);
+}
+}
+return 0;
+}
+static int gmatch(lua_State*L){
+luaL_checkstring(L,1);
+luaL_checkstring(L,2);
+lua_settop(L,2);
+lua_pushinteger(L,0);
+lua_pushcclosure(L,gmatch_aux,3);
+return 1;
+}
+static void add_s(MatchState*ms,luaL_Buffer*b,const char*s,
+const char*e){
+size_t l,i;
+const char*news=lua_tolstring(ms->L,3,&l);
+for(i=0;i<l;i++){
+if(news[i]!='%')
+luaL_addchar(b,news[i]);
+else{
+i++;
+if(!isdigit(uchar(news[i])))
+luaL_addchar(b,news[i]);
+else if(news[i]=='0')
+luaL_addlstring(b,s,e-s);
+else{
+push_onecapture(ms,news[i]-'1',s,e);
+luaL_addvalue(b);
+}
+}
+}
+}
+static void add_value(MatchState*ms,luaL_Buffer*b,const char*s,
+const char*e){
+lua_State*L=ms->L;
+switch(lua_type(L,3)){
+case 3:
+case 4:{
+add_s(ms,b,s,e);
+return;
+}
+case 6:{
+int n;
+lua_pushvalue(L,3);
+n=push_captures(ms,s,e);
+lua_call(L,n,1);
+break;
+}
+case 5:{
+push_onecapture(ms,0,s,e);
+lua_gettable(L,3);
+break;
+}
+}
+if(!lua_toboolean(L,-1)){
+lua_pop(L,1);
+lua_pushlstring(L,s,e-s);
+}
+else if(!lua_isstring(L,-1))
+luaL_error(L,"invalid replacement value (a %s)",luaL_typename(L,-1));
+luaL_addvalue(b);
+}
+static int str_gsub(lua_State*L){
+size_t srcl;
+const char*src=luaL_checklstring(L,1,&srcl);
+const char*p=luaL_checkstring(L,2);
+int tr=lua_type(L,3);
+int max_s=luaL_optint(L,4,srcl+1);
+int anchor=(*p=='^')?(p++,1):0;
+int n=0;
+MatchState ms;
+luaL_Buffer b;
+luaL_argcheck(L,tr==3||tr==4||
+tr==6||tr==5,3,
+"string/function/table expected");
+luaL_buffinit(L,&b);
+ms.L=L;
+ms.src_init=src;
+ms.src_end=src+srcl;
+while(n<max_s){
+const char*e;
+ms.level=0;
+e=match(&ms,src,p);
+if(e){
+n++;
+add_value(&ms,&b,src,e);
+}
+if(e&&e>src)
+src=e;
+else if(src<ms.src_end)
+luaL_addchar(&b,*src++);
+else break;
+if(anchor)break;
+}
+luaL_addlstring(&b,src,ms.src_end-src);
+luaL_pushresult(&b);
+lua_pushinteger(L,n);
+return 2;
+}
+static void addquoted(lua_State*L,luaL_Buffer*b,int arg){
+size_t l;
+const char*s=luaL_checklstring(L,arg,&l);
+luaL_addchar(b,'"');
+while(l--){
+switch(*s){
+case'"':case'\\':case'\n':{
+luaL_addchar(b,'\\');
+luaL_addchar(b,*s);
+break;
+}
+case'\r':{
+luaL_addlstring(b,"\\r",2);
+break;
+}
+case'\0':{
+luaL_addlstring(b,"\\000",4);
+break;
+}
+default:{
+luaL_addchar(b,*s);
+break;
+}
+}
+s++;
+}
+luaL_addchar(b,'"');
+}
+static const char*scanformat(lua_State*L,const char*strfrmt,char*form){
+const char*p=strfrmt;
+while(*p!='\0'&&strchr("-+ #0",*p)!=NULL)p++;
+if((size_t)(p-strfrmt)>=sizeof("-+ #0"))
+luaL_error(L,"invalid format (repeated flags)");
+if(isdigit(uchar(*p)))p++;
+if(isdigit(uchar(*p)))p++;
+if(*p=='.'){
+p++;
+if(isdigit(uchar(*p)))p++;
+if(isdigit(uchar(*p)))p++;
+}
+if(isdigit(uchar(*p)))
+luaL_error(L,"invalid format (width or precision too long)");
+*(form++)='%';
+strncpy(form,strfrmt,p-strfrmt+1);
+form+=p-strfrmt+1;
+*form='\0';
+return p;
+}
+static void addintlen(char*form){
+size_t l=strlen(form);
+char spec=form[l-1];
+strcpy(form+l-1,"l");
+form[l+sizeof("l")-2]=spec;
+form[l+sizeof("l")-1]='\0';
+}
+static int str_format(lua_State*L){
+int top=lua_gettop(L);
+int arg=1;
+size_t sfl;
+const char*strfrmt=luaL_checklstring(L,arg,&sfl);
+const char*strfrmt_end=strfrmt+sfl;
+luaL_Buffer b;
+luaL_buffinit(L,&b);
+while(strfrmt<strfrmt_end){
+if(*strfrmt!='%')
+luaL_addchar(&b,*strfrmt++);
+else if(*++strfrmt=='%')
+luaL_addchar(&b,*strfrmt++);
+else{
+char form[(sizeof("-+ #0")+sizeof("l")+10)];
+char buff[512];
+if(++arg>top)
+luaL_argerror(L,arg,"no value");
+strfrmt=scanformat(L,strfrmt,form);
+switch(*strfrmt++){
+case'c':{
+sprintf(buff,form,(int)luaL_checknumber(L,arg));
+break;
+}
+case'd':case'i':{
+addintlen(form);
+sprintf(buff,form,(long)luaL_checknumber(L,arg));
+break;
+}
+case'o':case'u':case'x':case'X':{
+addintlen(form);
+sprintf(buff,form,(unsigned long)luaL_checknumber(L,arg));
+break;
+}
+case'e':case'E':case'f':
+case'g':case'G':{
+sprintf(buff,form,(double)luaL_checknumber(L,arg));
+break;
+}
+case'q':{
+addquoted(L,&b,arg);
+continue;
+}
+case's':{
+size_t l;
+const char*s=luaL_checklstring(L,arg,&l);
+if(!strchr(form,'.')&&l>=100){
+lua_pushvalue(L,arg);
+luaL_addvalue(&b);
+continue;
+}
+else{
+sprintf(buff,form,s);
+break;
+}
+}
+default:{
+return luaL_error(L,"invalid option "LUA_QL("%%%c")" to "
+LUA_QL("format"),*(strfrmt-1));
+}
+}
+luaL_addlstring(&b,buff,strlen(buff));
+}
+}
+luaL_pushresult(&b);
+return 1;
+}
+static const luaL_Reg strlib[]={
+{"byte",str_byte},
+{"char",str_char},
+{"find",str_find},
+{"format",str_format},
+{"gmatch",gmatch},
+{"gsub",str_gsub},
+{"lower",str_lower},
+{"match",str_match},
+{"rep",str_rep},
+{"sub",str_sub},
+{"upper",str_upper},
+{NULL,NULL}
+};
+static void createmetatable(lua_State*L){
+lua_createtable(L,0,1);
+lua_pushliteral(L,"");
+lua_pushvalue(L,-2);
+lua_setmetatable(L,-2);
+lua_pop(L,1);
+lua_pushvalue(L,-2);
+lua_setfield(L,-2,"__index");
+lua_pop(L,1);
+}
+static int luaopen_string(lua_State*L){
+luaL_register(L,"string",strlib);
+createmetatable(L);
+return 1;
+}
+static const luaL_Reg lualibs[]={
+{"",luaopen_base},
+{"table",luaopen_table},
+{"io",luaopen_io},
+{"os",luaopen_os},
+{"string",luaopen_string},
+{NULL,NULL}
+};
+static void luaL_openlibs(lua_State*L){
+const luaL_Reg*lib=lualibs;
+for(;lib->func;lib++){
+lua_pushcfunction(L,lib->func);
+lua_pushstring(L,lib->name);
+lua_call(L,1,0);
+}
+}
+typedef unsigned int UB;
+static UB barg(lua_State*L,int idx){
+union{lua_Number n;U64 b;}bn;
+bn.n=lua_tonumber(L,idx)+6755399441055744.0;
+if(bn.n==0.0&&!lua_isnumber(L,idx))luaL_typerror(L,idx,"number");
+return(UB)bn.b;
+}
+#define BRET(b)lua_pushnumber(L,(lua_Number)(int)(b));return 1;
+static int tobit(lua_State*L){
+BRET(barg(L,1))}
+static int bnot(lua_State*L){
+BRET(~barg(L,1))}
+static int band(lua_State*L){
+int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b&=barg(L,i);BRET(b)}
+static int bor(lua_State*L){
+int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b|=barg(L,i);BRET(b)}
+static int bxor(lua_State*L){
+int i;UB b=barg(L,1);for(i=lua_gettop(L);i>1;i--)b^=barg(L,i);BRET(b)}
+static int lshift(lua_State*L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET(b<<n)}
+static int rshift(lua_State*L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET(b>>n)}
+static int arshift(lua_State*L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET((int)b>>n)}
+static int rol(lua_State*L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET((b<<n)|(b>>(32-n)))}
+static int ror(lua_State*L){
+UB b=barg(L,1),n=barg(L,2)&31;BRET((b>>n)|(b<<(32-n)))}
+static int bswap(lua_State*L){
+UB b=barg(L,1);b=(b>>24)|((b>>8)&0xff00)|((b&0xff00)<<8)|(b<<24);BRET(b)}
+static int tohex(lua_State*L){
+UB b=barg(L,1);
+int n=lua_isnone(L,2)?8:(int)barg(L,2);
+const char*hexdigits="0123456789abcdef";
+char buf[8];
+int i;
+if(n<0){n=-n;hexdigits="0123456789ABCDEF";}
+if(n>8)n=8;
+for(i=(int)n;--i>=0;){buf[i]=hexdigits[b&15];b>>=4;}
+lua_pushlstring(L,buf,(size_t)n);
+return 1;
+}
+static const struct luaL_Reg bitlib[]={
+{"tobit",tobit},
+{"bnot",bnot},
+{"band",band},
+{"bor",bor},
+{"bxor",bxor},
+{"lshift",lshift},
+{"rshift",rshift},
+{"arshift",arshift},
+{"rol",rol},
+{"ror",ror},
+{"bswap",bswap},
+{"tohex",tohex},
+{NULL,NULL}
+};
+int main(int argc,char**argv){
+lua_State*L=luaL_newstate();
+int i;
+luaL_openlibs(L);
+luaL_register(L,"bit",bitlib);
+if(argc<2)return sizeof(void*);
+lua_createtable(L,0,1);
+lua_pushstring(L,argv[1]);
+lua_rawseti(L,-2,0);
+lua_setglobal(L,"arg");
+if(luaL_loadfile(L,argv[1]))
+goto err;
+for(i=2;i<argc;i++)
+lua_pushstring(L,argv[i]);
+if(lua_pcall(L,argc-2,0,0)){
+err:
+fprintf(stderr,"Error: %s\n",lua_tostring(L,-1));
+return 1;
+}
+lua_close(L);
+return 0;
+}
diff --git a/libs/luajit-cmake/luajit/src/jit/.gitignore b/libs/luajit-cmake/luajit/src/jit/.gitignore
new file mode 100644
index 0000000..500e285
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/.gitignore
@@ -0,0 +1 @@
+vmdef.lua
diff --git a/libs/luajit-cmake/luajit/src/jit/bc.lua b/libs/luajit-cmake/luajit/src/jit/bc.lua
new file mode 100644
index 0000000..8d0844c
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/bc.lua
@@ -0,0 +1,190 @@
+----------------------------------------------------------------------------
+-- LuaJIT bytecode listing module.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+--
+-- This module lists the bytecode of a Lua function. If it's loaded by -jbc
+-- it hooks into the parser and lists all functions of a chunk as they
+-- are parsed.
+--
+-- Example usage:
+--
+--   luajit -jbc -e 'local x=0; for i=1,1e6 do x=x+i end; print(x)'
+--   luajit -jbc=- foo.lua
+--   luajit -jbc=foo.list foo.lua
+--
+-- Default output is to stderr. To redirect the output to a file, pass a
+-- filename as an argument (use '-' for stdout) or set the environment
+-- variable LUAJIT_LISTFILE. The file is overwritten every time the module
+-- is started.
+--
+-- This module can also be used programmatically:
+--
+--   local bc = require("jit.bc")
+--
+--   local function foo() print("hello") end
+--
+--   bc.dump(foo)           --> -- BYTECODE -- [...]
+--   print(bc.line(foo, 2)) --> 0002    KSTR     1   1      ; "hello"
+--
+--   local out = {
+--     -- Do something with each line:
+--     write = function(t, ...) io.write(...) end,
+--     close = function(t) end,
+--     flush = function(t) end,
+--   }
+--   bc.dump(foo, out)
+--
+------------------------------------------------------------------------------
+
+-- Cache some library functions and objects.
+local jit = require("jit")
+assert(jit.version_num == 20100, "LuaJIT core/library version mismatch")
+local jutil = require("jit.util")
+local vmdef = require("jit.vmdef")
+local bit = require("bit")
+local sub, gsub, format = string.sub, string.gsub, string.format
+local byte, band, shr = string.byte, bit.band, bit.rshift
+local funcinfo, funcbc, funck = jutil.funcinfo, jutil.funcbc, jutil.funck
+local funcuvname = jutil.funcuvname
+local bcnames = vmdef.bcnames
+local stdout, stderr = io.stdout, io.stderr
+
+------------------------------------------------------------------------------
+
+local function ctlsub(c)
+  if c == "\n" then return "\\n"
+  elseif c == "\r" then return "\\r"
+  elseif c == "\t" then return "\\t"
+  else return format("\\%03d", byte(c))
+  end
+end
+
+-- Return one bytecode line.
+local function bcline(func, pc, prefix)
+  local ins, m = funcbc(func, pc)
+  if not ins then return end
+  local ma, mb, mc = band(m, 7), band(m, 15*8), band(m, 15*128)
+  local a = band(shr(ins, 8), 0xff)
+  local oidx = 6*band(ins, 0xff)
+  local op = sub(bcnames, oidx+1, oidx+6)
+  local s = format("%04d %s %-6s %3s ",
+    pc, prefix or "  ", op, ma == 0 and "" or a)
+  local d = shr(ins, 16)
+  if mc == 13*128 then -- BCMjump
+    return format("%s=> %04d\n", s, pc+d-0x7fff)
+  end
+  if mb ~= 0 then
+    d = band(d, 0xff)
+  elseif mc == 0 then
+    return s.."\n"
+  end
+  local kc
+  if mc == 10*128 then -- BCMstr
+    kc = funck(func, -d-1)
+    kc = format(#kc > 40 and '"%.40s"~' or '"%s"', gsub(kc, "%c", ctlsub))
+  elseif mc == 9*128 then -- BCMnum
+    kc = funck(func, d)
+    if op == "TSETM " then kc = kc - 2^52 end
+  elseif mc == 12*128 then -- BCMfunc
+    local fi = funcinfo(funck(func, -d-1))
+    if fi.ffid then
+      kc = vmdef.ffnames[fi.ffid]
+    else
+      kc = fi.loc
+    end
+  elseif mc == 5*128 then -- BCMuv
+    kc = funcuvname(func, d)
+  end
+  if ma == 5 then -- BCMuv
+    local ka = funcuvname(func, a)
+    if kc then kc = ka.." ; "..kc else kc = ka end
+  end
+  if mb ~= 0 then
+    local b = shr(ins, 24)
+    if kc then return format("%s%3d %3d  ; %s\n", s, b, d, kc) end
+    return format("%s%3d %3d\n", s, b, d)
+  end
+  if kc then return format("%s%3d      ; %s\n", s, d, kc) end
+  if mc == 7*128 and d > 32767 then d = d - 65536 end -- BCMlits
+  return format("%s%3d\n", s, d)
+end
+
+-- Collect branch targets of a function.
+local function bctargets(func)
+  local target = {}
+  for pc=1,1000000000 do
+    local ins, m = funcbc(func, pc)
+    if not ins then break end
+    if band(m, 15*128) == 13*128 then target[pc+shr(ins, 16)-0x7fff] = true end
+  end
+  return target
+end
+
+-- Dump bytecode instructions of a function.
+local function bcdump(func, out, all)
+  if not out then out = stdout end
+  local fi = funcinfo(func)
+  if all and fi.children then
+    for n=-1,-1000000000,-1 do
+      local k = funck(func, n)
+      if not k then break end
+      if type(k) == "proto" then bcdump(k, out, true) end
+    end
+  end
+  out:write(format("-- BYTECODE -- %s-%d\n", fi.loc, fi.lastlinedefined))
+  local target = bctargets(func)
+  for pc=1,1000000000 do
+    local s = bcline(func, pc, target[pc] and "=>")
+    if not s then break end
+    out:write(s)
+  end
+  out:write("\n")
+  out:flush()
+end
+
+------------------------------------------------------------------------------
+
+-- Active flag and output file handle.
+local active, out
+
+-- List handler.
+local function h_list(func)
+  return bcdump(func, out)
+end
+
+-- Detach list handler.
+local function bclistoff()
+  if active then
+    active = false
+    jit.attach(h_list)
+    if out and out ~= stdout and out ~= stderr then out:close() end
+    out = nil
+  end
+end
+
+-- Open the output file and attach list handler.
+local function bcliston(outfile)
+  if active then bclistoff() end
+  if not outfile then outfile = os.getenv("LUAJIT_LISTFILE") end
+  if outfile then
+    out = outfile == "-" and stdout or assert(io.open(outfile, "w"))
+  else
+    out = stderr
+  end
+  jit.attach(h_list, "bc")
+  active = true
+end
+
+-- Public module functions.
+return {
+  line = bcline,
+  dump = bcdump,
+  targets = bctargets,
+  on = bcliston,
+  off = bclistoff,
+  start = bcliston -- For -j command line option.
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/bcsave.lua b/libs/luajit-cmake/luajit/src/jit/bcsave.lua
new file mode 100644
index 0000000..90fe9da
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/bcsave.lua
@@ -0,0 +1,705 @@
+----------------------------------------------------------------------------
+-- LuaJIT module to save/list bytecode.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+--
+-- This module saves or lists the bytecode for an input file.
+-- It's run by the -b command line option.
+--
+------------------------------------------------------------------------------
+
+local jit = require("jit")
+assert(jit.version_num == 20100, "LuaJIT core/library version mismatch")
+local bit = require("bit")
+
+-- Symbol name prefix for LuaJIT bytecode.
+local LJBC_PREFIX = "luaJIT_BC_"
+
+local type, assert = type, assert
+local format = string.format
+local tremove, tconcat = table.remove, table.concat
+
+------------------------------------------------------------------------------
+
+local function usage()
+  io.stderr:write[[
+Save LuaJIT bytecode: luajit -b[options] input output
+  -l        Only list bytecode.
+  -s        Strip debug info (default).
+  -g        Keep debug info.
+  -n name   Set module name (default: auto-detect from input name).
+  -t type   Set output file type (default: auto-detect from output name).
+  -a arch   Override architecture for object files (default: native).
+  -o os     Override OS for object files (default: native).
+  -F name   Override filename (default: input filename).
+  -e chunk  Use chunk string as input.
+  --        Stop handling options.
+  -         Use stdin as input and/or stdout as output.
+
+File types: c h obj o raw (default)
+]]
+  os.exit(1)
+end
+
+local function check(ok, ...)
+  if ok then return ok, ... end
+  io.stderr:write("luajit: ", ...)
+  io.stderr:write("\n")
+  os.exit(1)
+end
+
+local function readfile(ctx, input)
+  if type(input) == "function" then return input end
+  if ctx.filename then
+    local data
+    if input == "-" then
+      data = io.stdin:read("*a")
+    else
+      local fp = assert(io.open(input, "rb"))
+      data = assert(fp:read("*a"))
+      assert(fp:close())
+    end
+    return check(load(data, ctx.filename))
+  else
+    if input == "-" then input = nil end
+    return check(loadfile(input))
+  end
+end
+
+local function savefile(name, mode)
+  if name == "-" then return io.stdout end
+  return check(io.open(name, mode))
+end
+
+local function set_stdout_binary(ffi)
+  ffi.cdef[[int _setmode(int fd, int mode);]]
+  ffi.C._setmode(1, 0x8000)
+end
+
+------------------------------------------------------------------------------
+
+local map_type = {
+  raw = "raw", c = "c", h = "h", o = "obj", obj = "obj",
+}
+
+local map_arch = {
+  x86 =		{ e = "le", b = 32, m = 3, p = 0x14c, },
+  x64 =		{ e = "le", b = 64, m = 62, p = 0x8664, },
+  arm =		{ e = "le", b = 32, m = 40, p = 0x1c0, },
+  arm64 =	{ e = "le", b = 64, m = 183, p = 0xaa64, },
+  arm64be =	{ e = "be", b = 64, m = 183, },
+  ppc =		{ e = "be", b = 32, m = 20, },
+  mips =	{ e = "be", b = 32, m = 8, f = 0x50001006, },
+  mipsel =	{ e = "le", b = 32, m = 8, f = 0x50001006, },
+  mips64 =	{ e = "be", b = 64, m = 8, f = 0x80000007, },
+  mips64el =	{ e = "le", b = 64, m = 8, f = 0x80000007, },
+  mips64r6 =	{ e = "be", b = 64, m = 8, f = 0xa0000407, },
+  mips64r6el =	{ e = "le", b = 64, m = 8, f = 0xa0000407, },
+}
+
+local map_os = {
+  linux = true, windows = true, osx = true, freebsd = true, netbsd = true,
+  openbsd = true, dragonfly = true, solaris = true,
+}
+
+local function checkarg(str, map, err)
+  str = str:lower()
+  local s = check(map[str], "unknown ", err)
+  return type(s) == "string" and s or str
+end
+
+local function detecttype(str)
+  local ext = str:lower():match("%.(%a+)$")
+  return map_type[ext] or "raw"
+end
+
+local function checkmodname(str)
+  check(str:match("^[%w_.%-]+$"), "bad module name")
+  return str:gsub("[%.%-]", "_")
+end
+
+local function detectmodname(str)
+  if type(str) == "string" then
+    local tail = str:match("[^/\\]+$")
+    if tail then str = tail end
+    local head = str:match("^(.*)%.[^.]*$")
+    if head then str = head end
+    str = str:match("^[%w_.%-]+")
+  else
+    str = nil
+  end
+  check(str, "cannot derive module name, use -n name")
+  return str:gsub("[%.%-]", "_")
+end
+
+------------------------------------------------------------------------------
+
+local function bcsave_tail(fp, output, s)
+  local ok, err = fp:write(s)
+  if ok and output ~= "-" then ok, err = fp:close() end
+  check(ok, "cannot write ", output, ": ", err)
+end
+
+local function bcsave_raw(output, s)
+  if output == "-" and jit.os == "Windows" then
+    local ok, ffi = pcall(require, "ffi")
+    check(ok, "FFI library required to write binary file to stdout")
+    set_stdout_binary(ffi)
+  end
+  local fp = savefile(output, "wb")
+  bcsave_tail(fp, output, s)
+end
+
+local function bcsave_c(ctx, output, s)
+  local fp = savefile(output, "w")
+  if ctx.type == "c" then
+    fp:write(format([[
+#ifdef __cplusplus
+extern "C"
+#endif
+#ifdef _WIN32
+__declspec(dllexport)
+#endif
+const unsigned char %s%s[] = {
+]], LJBC_PREFIX, ctx.modname))
+  else
+    fp:write(format([[
+#define %s%s_SIZE %d
+static const unsigned char %s%s[] = {
+]], LJBC_PREFIX, ctx.modname, #s, LJBC_PREFIX, ctx.modname))
+  end
+  local t, n, m = {}, 0, 0
+  for i=1,#s do
+    local b = tostring(string.byte(s, i))
+    m = m + #b + 1
+    if m > 78 then
+      fp:write(tconcat(t, ",", 1, n), ",\n")
+      n, m = 0, #b + 1
+    end
+    n = n + 1
+    t[n] = b
+  end
+  bcsave_tail(fp, output, tconcat(t, ",", 1, n).."\n};\n")
+end
+
+local function bcsave_elfobj(ctx, output, s, ffi)
+  ffi.cdef[[
+typedef struct {
+  uint8_t emagic[4], eclass, eendian, eversion, eosabi, eabiversion, epad[7];
+  uint16_t type, machine;
+  uint32_t version;
+  uint32_t entry, phofs, shofs;
+  uint32_t flags;
+  uint16_t ehsize, phentsize, phnum, shentsize, shnum, shstridx;
+} ELF32header;
+typedef struct {
+  uint8_t emagic[4], eclass, eendian, eversion, eosabi, eabiversion, epad[7];
+  uint16_t type, machine;
+  uint32_t version;
+  uint64_t entry, phofs, shofs;
+  uint32_t flags;
+  uint16_t ehsize, phentsize, phnum, shentsize, shnum, shstridx;
+} ELF64header;
+typedef struct {
+  uint32_t name, type, flags, addr, ofs, size, link, info, align, entsize;
+} ELF32sectheader;
+typedef struct {
+  uint32_t name, type;
+  uint64_t flags, addr, ofs, size;
+  uint32_t link, info;
+  uint64_t align, entsize;
+} ELF64sectheader;
+typedef struct {
+  uint32_t name, value, size;
+  uint8_t info, other;
+  uint16_t sectidx;
+} ELF32symbol;
+typedef struct {
+  uint32_t name;
+  uint8_t info, other;
+  uint16_t sectidx;
+  uint64_t value, size;
+} ELF64symbol;
+typedef struct {
+  ELF32header hdr;
+  ELF32sectheader sect[6];
+  ELF32symbol sym[2];
+  uint8_t space[4096];
+} ELF32obj;
+typedef struct {
+  ELF64header hdr;
+  ELF64sectheader sect[6];
+  ELF64symbol sym[2];
+  uint8_t space[4096];
+} ELF64obj;
+]]
+  local symname = LJBC_PREFIX..ctx.modname
+  local ai = assert(map_arch[ctx.arch])
+  local is64, isbe = ai.b == 64, ai.e == "be"
+
+  -- Handle different host/target endianess.
+  local function f32(x) return x end
+  local f16, fofs = f32, f32
+  if ffi.abi("be") ~= isbe then
+    f32 = bit.bswap
+    function f16(x) return bit.rshift(bit.bswap(x), 16) end
+    if is64 then
+      local two32 = ffi.cast("int64_t", 2^32)
+      function fofs(x) return bit.bswap(x)*two32 end
+    else
+      fofs = f32
+    end
+  end
+
+  -- Create ELF object and fill in header.
+  local o = ffi.new(is64 and "ELF64obj" or "ELF32obj")
+  local hdr = o.hdr
+  if ctx.os == "bsd" or ctx.os == "other" then -- Determine native hdr.eosabi.
+    local bf = assert(io.open("/bin/ls", "rb"))
+    local bs = bf:read(9)
+    bf:close()
+    ffi.copy(o, bs, 9)
+    check(hdr.emagic[0] == 127, "no support for writing native object files")
+  else
+    hdr.emagic = "\127ELF"
+    hdr.eosabi = ({ freebsd=9, netbsd=2, openbsd=12, solaris=6 })[ctx.os] or 0
+  end
+  hdr.eclass = is64 and 2 or 1
+  hdr.eendian = isbe and 2 or 1
+  hdr.eversion = 1
+  hdr.type = f16(1)
+  hdr.machine = f16(ai.m)
+  hdr.flags = f32(ai.f or 0)
+  hdr.version = f32(1)
+  hdr.shofs = fofs(ffi.offsetof(o, "sect"))
+  hdr.ehsize = f16(ffi.sizeof(hdr))
+  hdr.shentsize = f16(ffi.sizeof(o.sect[0]))
+  hdr.shnum = f16(6)
+  hdr.shstridx = f16(2)
+
+  -- Fill in sections and symbols.
+  local sofs, ofs = ffi.offsetof(o, "space"), 1
+  for i,name in ipairs{
+      ".symtab", ".shstrtab", ".strtab", ".rodata", ".note.GNU-stack",
+    } do
+    local sect = o.sect[i]
+    sect.align = fofs(1)
+    sect.name = f32(ofs)
+    ffi.copy(o.space+ofs, name)
+    ofs = ofs + #name+1
+  end
+  o.sect[1].type = f32(2) -- .symtab
+  o.sect[1].link = f32(3)
+  o.sect[1].info = f32(1)
+  o.sect[1].align = fofs(8)
+  o.sect[1].ofs = fofs(ffi.offsetof(o, "sym"))
+  o.sect[1].entsize = fofs(ffi.sizeof(o.sym[0]))
+  o.sect[1].size = fofs(ffi.sizeof(o.sym))
+  o.sym[1].name = f32(1)
+  o.sym[1].sectidx = f16(4)
+  o.sym[1].size = fofs(#s)
+  o.sym[1].info = 17
+  o.sect[2].type = f32(3) -- .shstrtab
+  o.sect[2].ofs = fofs(sofs)
+  o.sect[2].size = fofs(ofs)
+  o.sect[3].type = f32(3) -- .strtab
+  o.sect[3].ofs = fofs(sofs + ofs)
+  o.sect[3].size = fofs(#symname+2)
+  ffi.copy(o.space+ofs+1, symname)
+  ofs = ofs + #symname + 2
+  o.sect[4].type = f32(1) -- .rodata
+  o.sect[4].flags = fofs(2)
+  o.sect[4].ofs = fofs(sofs + ofs)
+  o.sect[4].size = fofs(#s)
+  o.sect[5].type = f32(1) -- .note.GNU-stack
+  o.sect[5].ofs = fofs(sofs + ofs + #s)
+
+  -- Write ELF object file.
+  local fp = savefile(output, "wb")
+  fp:write(ffi.string(o, ffi.sizeof(o)-4096+ofs))
+  bcsave_tail(fp, output, s)
+end
+
+local function bcsave_peobj(ctx, output, s, ffi)
+  ffi.cdef[[
+typedef struct {
+  uint16_t arch, nsects;
+  uint32_t time, symtabofs, nsyms;
+  uint16_t opthdrsz, flags;
+} PEheader;
+typedef struct {
+  char name[8];
+  uint32_t vsize, vaddr, size, ofs, relocofs, lineofs;
+  uint16_t nreloc, nline;
+  uint32_t flags;
+} PEsection;
+typedef struct __attribute((packed)) {
+  union {
+    char name[8];
+    uint32_t nameref[2];
+  };
+  uint32_t value;
+  int16_t sect;
+  uint16_t type;
+  uint8_t scl, naux;
+} PEsym;
+typedef struct __attribute((packed)) {
+  uint32_t size;
+  uint16_t nreloc, nline;
+  uint32_t cksum;
+  uint16_t assoc;
+  uint8_t comdatsel, unused[3];
+} PEsymaux;
+typedef struct {
+  PEheader hdr;
+  PEsection sect[2];
+  // Must be an even number of symbol structs.
+  PEsym sym0;
+  PEsymaux sym0aux;
+  PEsym sym1;
+  PEsymaux sym1aux;
+  PEsym sym2;
+  PEsym sym3;
+  uint32_t strtabsize;
+  uint8_t space[4096];
+} PEobj;
+]]
+  local symname = LJBC_PREFIX..ctx.modname
+  local ai = assert(map_arch[ctx.arch])
+  local is64 = ai.b == 64
+  local symexport = "   /EXPORT:"..symname..",DATA "
+
+  -- The file format is always little-endian. Swap if the host is big-endian.
+  local function f32(x) return x end
+  local f16 = f32
+  if ffi.abi("be") then
+    f32 = bit.bswap
+    function f16(x) return bit.rshift(bit.bswap(x), 16) end
+  end
+
+  -- Create PE object and fill in header.
+  local o = ffi.new("PEobj")
+  local hdr = o.hdr
+  hdr.arch = f16(assert(ai.p))
+  hdr.nsects = f16(2)
+  hdr.symtabofs = f32(ffi.offsetof(o, "sym0"))
+  hdr.nsyms = f32(6)
+
+  -- Fill in sections and symbols.
+  o.sect[0].name = ".drectve"
+  o.sect[0].size = f32(#symexport)
+  o.sect[0].flags = f32(0x00100a00)
+  o.sym0.sect = f16(1)
+  o.sym0.scl = 3
+  o.sym0.name = ".drectve"
+  o.sym0.naux = 1
+  o.sym0aux.size = f32(#symexport)
+  o.sect[1].name = ".rdata"
+  o.sect[1].size = f32(#s)
+  o.sect[1].flags = f32(0x40300040)
+  o.sym1.sect = f16(2)
+  o.sym1.scl = 3
+  o.sym1.name = ".rdata"
+  o.sym1.naux = 1
+  o.sym1aux.size = f32(#s)
+  o.sym2.sect = f16(2)
+  o.sym2.scl = 2
+  o.sym2.nameref[1] = f32(4)
+  o.sym3.sect = f16(-1)
+  o.sym3.scl = 2
+  o.sym3.value = f32(1)
+  o.sym3.name = "@feat.00" -- Mark as SafeSEH compliant.
+  ffi.copy(o.space, symname)
+  local ofs = #symname + 1
+  o.strtabsize = f32(ofs + 4)
+  o.sect[0].ofs = f32(ffi.offsetof(o, "space") + ofs)
+  ffi.copy(o.space + ofs, symexport)
+  ofs = ofs + #symexport
+  o.sect[1].ofs = f32(ffi.offsetof(o, "space") + ofs)
+
+  -- Write PE object file.
+  local fp = savefile(output, "wb")
+  fp:write(ffi.string(o, ffi.sizeof(o)-4096+ofs))
+  bcsave_tail(fp, output, s)
+end
+
+local function bcsave_machobj(ctx, output, s, ffi)
+  ffi.cdef[[
+typedef struct
+{
+  uint32_t magic, cputype, cpusubtype, filetype, ncmds, sizeofcmds, flags;
+} mach_header;
+typedef struct
+{
+  mach_header; uint32_t reserved;
+} mach_header_64;
+typedef struct {
+  uint32_t cmd, cmdsize;
+  char segname[16];
+  uint32_t vmaddr, vmsize, fileoff, filesize;
+  uint32_t maxprot, initprot, nsects, flags;
+} mach_segment_command;
+typedef struct {
+  uint32_t cmd, cmdsize;
+  char segname[16];
+  uint64_t vmaddr, vmsize, fileoff, filesize;
+  uint32_t maxprot, initprot, nsects, flags;
+} mach_segment_command_64;
+typedef struct {
+  char sectname[16], segname[16];
+  uint32_t addr, size;
+  uint32_t offset, align, reloff, nreloc, flags;
+  uint32_t reserved1, reserved2;
+} mach_section;
+typedef struct {
+  char sectname[16], segname[16];
+  uint64_t addr, size;
+  uint32_t offset, align, reloff, nreloc, flags;
+  uint32_t reserved1, reserved2, reserved3;
+} mach_section_64;
+typedef struct {
+  uint32_t cmd, cmdsize, symoff, nsyms, stroff, strsize;
+} mach_symtab_command;
+typedef struct {
+  int32_t strx;
+  uint8_t type, sect;
+  int16_t desc;
+  uint32_t value;
+} mach_nlist;
+typedef struct {
+  int32_t strx;
+  uint8_t type, sect;
+  uint16_t desc;
+  uint64_t value;
+} mach_nlist_64;
+typedef struct
+{
+  int32_t magic, nfat_arch;
+} mach_fat_header;
+typedef struct
+{
+  int32_t cputype, cpusubtype, offset, size, align;
+} mach_fat_arch;
+typedef struct {
+  struct {
+    mach_header hdr;
+    mach_segment_command seg;
+    mach_section sec;
+    mach_symtab_command sym;
+  } arch[1];
+  mach_nlist sym_entry;
+  uint8_t space[4096];
+} mach_obj;
+typedef struct {
+  struct {
+    mach_header_64 hdr;
+    mach_segment_command_64 seg;
+    mach_section_64 sec;
+    mach_symtab_command sym;
+  } arch[1];
+  mach_nlist_64 sym_entry;
+  uint8_t space[4096];
+} mach_obj_64;
+typedef struct {
+  mach_fat_header fat;
+  mach_fat_arch fat_arch[2];
+  struct {
+    mach_header hdr;
+    mach_segment_command seg;
+    mach_section sec;
+    mach_symtab_command sym;
+  } arch[2];
+  mach_nlist sym_entry;
+  uint8_t space[4096];
+} mach_fat_obj;
+typedef struct {
+  mach_fat_header fat;
+  mach_fat_arch fat_arch[2];
+  struct {
+    mach_header_64 hdr;
+    mach_segment_command_64 seg;
+    mach_section_64 sec;
+    mach_symtab_command sym;
+  } arch[2];
+  mach_nlist_64 sym_entry;
+  uint8_t space[4096];
+} mach_fat_obj_64;
+]]
+  local symname = '_'..LJBC_PREFIX..ctx.modname
+  local isfat, is64, align, mobj = false, false, 4, "mach_obj"
+  if ctx.arch == "x64" then
+    is64, align, mobj = true, 8, "mach_obj_64"
+  elseif ctx.arch == "arm" then
+    isfat, mobj = true, "mach_fat_obj"
+  elseif ctx.arch == "arm64" then
+    is64, align, isfat, mobj = true, 8, true, "mach_fat_obj_64"
+  else
+    check(ctx.arch == "x86", "unsupported architecture for OSX")
+  end
+  local function aligned(v, a) return bit.band(v+a-1, -a) end
+  local be32 = bit.bswap -- Mach-O FAT is BE, supported archs are LE.
+
+  -- Create Mach-O object and fill in header.
+  local o = ffi.new(mobj)
+  local mach_size = aligned(ffi.offsetof(o, "space")+#symname+2, align)
+  local cputype = ({ x86={7}, x64={0x01000007}, arm={7,12}, arm64={0x01000007,0x0100000c} })[ctx.arch]
+  local cpusubtype = ({ x86={3}, x64={3}, arm={3,9}, arm64={3,0} })[ctx.arch]
+  if isfat then
+    o.fat.magic = be32(0xcafebabe)
+    o.fat.nfat_arch = be32(#cpusubtype)
+  end
+
+  -- Fill in sections and symbols.
+  for i=0,#cpusubtype-1 do
+    local ofs = 0
+    if isfat then
+      local a = o.fat_arch[i]
+      a.cputype = be32(cputype[i+1])
+      a.cpusubtype = be32(cpusubtype[i+1])
+      -- Subsequent slices overlap each other to share data.
+      ofs = ffi.offsetof(o, "arch") + i*ffi.sizeof(o.arch[0])
+      a.offset = be32(ofs)
+      a.size = be32(mach_size-ofs+#s)
+    end
+    local a = o.arch[i]
+    a.hdr.magic = is64 and 0xfeedfacf or 0xfeedface
+    a.hdr.cputype = cputype[i+1]
+    a.hdr.cpusubtype = cpusubtype[i+1]
+    a.hdr.filetype = 1
+    a.hdr.ncmds = 2
+    a.hdr.sizeofcmds = ffi.sizeof(a.seg)+ffi.sizeof(a.sec)+ffi.sizeof(a.sym)
+    a.seg.cmd = is64 and 0x19 or 0x1
+    a.seg.cmdsize = ffi.sizeof(a.seg)+ffi.sizeof(a.sec)
+    a.seg.vmsize = #s
+    a.seg.fileoff = mach_size-ofs
+    a.seg.filesize = #s
+    a.seg.maxprot = 1
+    a.seg.initprot = 1
+    a.seg.nsects = 1
+    ffi.copy(a.sec.sectname, "__data")
+    ffi.copy(a.sec.segname, "__DATA")
+    a.sec.size = #s
+    a.sec.offset = mach_size-ofs
+    a.sym.cmd = 2
+    a.sym.cmdsize = ffi.sizeof(a.sym)
+    a.sym.symoff = ffi.offsetof(o, "sym_entry")-ofs
+    a.sym.nsyms = 1
+    a.sym.stroff = ffi.offsetof(o, "sym_entry")+ffi.sizeof(o.sym_entry)-ofs
+    a.sym.strsize = aligned(#symname+2, align)
+  end
+  o.sym_entry.type = 0xf
+  o.sym_entry.sect = 1
+  o.sym_entry.strx = 1
+  ffi.copy(o.space+1, symname)
+
+  -- Write Macho-O object file.
+  local fp = savefile(output, "wb")
+  fp:write(ffi.string(o, mach_size))
+  bcsave_tail(fp, output, s)
+end
+
+local function bcsave_obj(ctx, output, s)
+  local ok, ffi = pcall(require, "ffi")
+  check(ok, "FFI library required to write this file type")
+  if output == "-" and jit.os == "Windows" then
+    set_stdout_binary(ffi)
+  end
+  if ctx.os == "windows" then
+    return bcsave_peobj(ctx, output, s, ffi)
+  elseif ctx.os == "osx" then
+    return bcsave_machobj(ctx, output, s, ffi)
+  else
+    return bcsave_elfobj(ctx, output, s, ffi)
+  end
+end
+
+------------------------------------------------------------------------------
+
+local function bclist(ctx, input, output)
+  local f = readfile(ctx, input)
+  require("jit.bc").dump(f, savefile(output, "w"), true)
+end
+
+local function bcsave(ctx, input, output)
+  local f = readfile(ctx, input)
+  local s = string.dump(f, ctx.strip)
+  local t = ctx.type
+  if not t then
+    t = detecttype(output)
+    ctx.type = t
+  end
+  if t == "raw" then
+    bcsave_raw(output, s)
+  else
+    if not ctx.modname then ctx.modname = detectmodname(input) end
+    if t == "obj" then
+      bcsave_obj(ctx, output, s)
+    else
+      bcsave_c(ctx, output, s)
+    end
+  end
+end
+
+local function docmd(...)
+  local arg = {...}
+  local n = 1
+  local list = false
+  local ctx = {
+    strip = true, arch = jit.arch, os = jit.os:lower(),
+    type = false, modname = false,
+  }
+  while n <= #arg do
+    local a = arg[n]
+    if type(a) == "string" and a:sub(1, 1) == "-" and a ~= "-" then
+      tremove(arg, n)
+      if a == "--" then break end
+      for m=2,#a do
+	local opt = a:sub(m, m)
+	if opt == "l" then
+	  list = true
+	elseif opt == "s" then
+	  ctx.strip = true
+	elseif opt == "g" then
+	  ctx.strip = false
+	else
+	  if arg[n] == nil or m ~= #a then usage() end
+	  if opt == "e" then
+	    if n ~= 1 then usage() end
+	    arg[1] = check(loadstring(arg[1]))
+	  elseif opt == "n" then
+	    ctx.modname = checkmodname(tremove(arg, n))
+	  elseif opt == "t" then
+	    ctx.type = checkarg(tremove(arg, n), map_type, "file type")
+	  elseif opt == "a" then
+	    ctx.arch = checkarg(tremove(arg, n), map_arch, "architecture")
+	  elseif opt == "o" then
+	    ctx.os = checkarg(tremove(arg, n), map_os, "OS name")
+	  elseif opt == "F" then
+	    ctx.filename = "@"..tremove(arg, n)
+	  else
+	    usage()
+	  end
+	end
+      end
+    else
+      n = n + 1
+    end
+  end
+  if list then
+    if #arg == 0 or #arg > 2 then usage() end
+    bclist(ctx, arg[1], arg[2] or "-")
+  else
+    if #arg ~= 2 then usage() end
+    bcsave(ctx, arg[1], arg[2])
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Public module functions.
+return {
+  start = docmd -- Process -b command line option.
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/dis_arm.lua b/libs/luajit-cmake/luajit/src/jit/dis_arm.lua
new file mode 100644
index 0000000..18ab68d
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/dis_arm.lua
@@ -0,0 +1,689 @@
+----------------------------------------------------------------------------
+-- LuaJIT ARM disassembler module.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This is a helper module used by the LuaJIT machine code dumper module.
+--
+-- It disassembles most user-mode ARMv7 instructions
+-- NYI: Advanced SIMD and VFP instructions.
+------------------------------------------------------------------------------
+
+local type = type
+local sub, byte, format = string.sub, string.byte, string.format
+local match, gmatch = string.match, string.gmatch
+local concat = table.concat
+local bit = require("bit")
+local band, bor, ror, tohex = bit.band, bit.bor, bit.ror, bit.tohex
+local lshift, rshift, arshift = bit.lshift, bit.rshift, bit.arshift
+
+------------------------------------------------------------------------------
+-- Opcode maps
+------------------------------------------------------------------------------
+
+local map_loadc = {
+  shift = 8, mask = 15,
+  [10] = {
+    shift = 20, mask = 1,
+    [0] = {
+      shift = 23, mask = 3,
+      [0] = "vmovFmDN", "vstmFNdr",
+      _ = {
+	shift = 21, mask = 1,
+	[0] = "vstrFdl",
+	{ shift = 16, mask = 15, [13] = "vpushFdr", _ = "vstmdbFNdr", }
+      },
+    },
+    {
+      shift = 23, mask = 3,
+      [0] = "vmovFDNm",
+      { shift = 16, mask = 15, [13] = "vpopFdr", _ = "vldmFNdr", },
+      _ = {
+	shift = 21, mask = 1,
+	[0] = "vldrFdl", "vldmdbFNdr",
+      },
+    },
+  },
+  [11] = {
+    shift = 20, mask = 1,
+    [0] = {
+      shift = 23, mask = 3,
+      [0] = "vmovGmDN", "vstmGNdr",
+      _ = {
+	shift = 21, mask = 1,
+	[0] = "vstrGdl",
+	{ shift = 16, mask = 15, [13] = "vpushGdr", _ = "vstmdbGNdr", }
+      },
+    },
+    {
+      shift = 23, mask = 3,
+      [0] = "vmovGDNm",
+      { shift = 16, mask = 15, [13] = "vpopGdr", _ = "vldmGNdr", },
+      _ = {
+	shift = 21, mask = 1,
+	[0] = "vldrGdl", "vldmdbGNdr",
+      },
+    },
+  },
+  _ = {
+    shift = 0, mask = 0 -- NYI ldc, mcrr, mrrc.
+  },
+}
+
+local map_vfps = {
+  shift = 6, mask = 0x2c001,
+  [0] = "vmlaF.dnm", "vmlsF.dnm",
+  [0x04000] = "vnmlsF.dnm", [0x04001] = "vnmlaF.dnm",
+  [0x08000] = "vmulF.dnm", [0x08001] = "vnmulF.dnm",
+  [0x0c000] = "vaddF.dnm", [0x0c001] = "vsubF.dnm",
+  [0x20000] = "vdivF.dnm",
+  [0x24000] = "vfnmsF.dnm", [0x24001] = "vfnmaF.dnm",
+  [0x28000] = "vfmaF.dnm", [0x28001] = "vfmsF.dnm",
+  [0x2c000] = "vmovF.dY",
+  [0x2c001] = {
+    shift = 7, mask = 0x1e01,
+    [0] = "vmovF.dm", "vabsF.dm",
+    [0x0200] = "vnegF.dm", [0x0201] = "vsqrtF.dm",
+    [0x0800] = "vcmpF.dm", [0x0801] = "vcmpeF.dm",
+    [0x0a00] = "vcmpzF.d", [0x0a01] = "vcmpzeF.d",
+    [0x0e01] = "vcvtG.dF.m",
+    [0x1000] = "vcvt.f32.u32Fdm", [0x1001] = "vcvt.f32.s32Fdm",
+    [0x1800] = "vcvtr.u32F.dm", [0x1801] = "vcvt.u32F.dm",
+    [0x1a00] = "vcvtr.s32F.dm", [0x1a01] = "vcvt.s32F.dm",
+  },
+}
+
+local map_vfpd = {
+  shift = 6, mask = 0x2c001,
+  [0] = "vmlaG.dnm", "vmlsG.dnm",
+  [0x04000] = "vnmlsG.dnm", [0x04001] = "vnmlaG.dnm",
+  [0x08000] = "vmulG.dnm", [0x08001] = "vnmulG.dnm",
+  [0x0c000] = "vaddG.dnm", [0x0c001] = "vsubG.dnm",
+  [0x20000] = "vdivG.dnm",
+  [0x24000] = "vfnmsG.dnm", [0x24001] = "vfnmaG.dnm",
+  [0x28000] = "vfmaG.dnm", [0x28001] = "vfmsG.dnm",
+  [0x2c000] = "vmovG.dY",
+  [0x2c001] = {
+    shift = 7, mask = 0x1e01,
+    [0] = "vmovG.dm", "vabsG.dm",
+    [0x0200] = "vnegG.dm", [0x0201] = "vsqrtG.dm",
+    [0x0800] = "vcmpG.dm", [0x0801] = "vcmpeG.dm",
+    [0x0a00] = "vcmpzG.d", [0x0a01] = "vcmpzeG.d",
+    [0x0e01] = "vcvtF.dG.m",
+    [0x1000] = "vcvt.f64.u32GdFm", [0x1001] = "vcvt.f64.s32GdFm",
+    [0x1800] = "vcvtr.u32FdG.m", [0x1801] = "vcvt.u32FdG.m",
+    [0x1a00] = "vcvtr.s32FdG.m", [0x1a01] = "vcvt.s32FdG.m",
+  },
+}
+
+local map_datac = {
+  shift = 24, mask = 1,
+  [0] = {
+    shift = 4, mask = 1,
+    [0] = {
+      shift = 8, mask = 15,
+      [10] = map_vfps,
+      [11] = map_vfpd,
+      -- NYI cdp, mcr, mrc.
+    },
+    {
+      shift = 8, mask = 15,
+      [10] = {
+	shift = 20, mask = 15,
+	[0] = "vmovFnD", "vmovFDn",
+	[14] = "vmsrD",
+	[15] = { shift = 12, mask = 15, [15] = "vmrs", _ = "vmrsD", },
+      },
+    },
+  },
+  "svcT",
+}
+
+local map_loadcu = {
+  shift = 0, mask = 0, -- NYI unconditional CP load/store.
+}
+
+local map_datacu = {
+  shift = 0, mask = 0, -- NYI unconditional CP data.
+}
+
+local map_simddata = {
+  shift = 0, mask = 0, -- NYI SIMD data.
+}
+
+local map_simdload = {
+  shift = 0, mask = 0, -- NYI SIMD load/store, preload.
+}
+
+local map_preload = {
+  shift = 0, mask = 0, -- NYI preload.
+}
+
+local map_media = {
+  shift = 20, mask = 31,
+  [0] = false,
+  { --01
+    shift = 5, mask = 7,
+    [0] = "sadd16DNM", "sasxDNM", "ssaxDNM", "ssub16DNM",
+    "sadd8DNM", false, false, "ssub8DNM",
+  },
+  { --02
+    shift = 5, mask = 7,
+    [0] = "qadd16DNM", "qasxDNM", "qsaxDNM", "qsub16DNM",
+    "qadd8DNM", false, false, "qsub8DNM",
+  },
+  { --03
+    shift = 5, mask = 7,
+    [0] = "shadd16DNM", "shasxDNM", "shsaxDNM", "shsub16DNM",
+    "shadd8DNM", false, false, "shsub8DNM",
+  },
+  false,
+  { --05
+    shift = 5, mask = 7,
+    [0] = "uadd16DNM", "uasxDNM", "usaxDNM", "usub16DNM",
+    "uadd8DNM", false, false, "usub8DNM",
+  },
+  { --06
+    shift = 5, mask = 7,
+    [0] = "uqadd16DNM", "uqasxDNM", "uqsaxDNM", "uqsub16DNM",
+    "uqadd8DNM", false, false, "uqsub8DNM",
+  },
+  { --07
+    shift = 5, mask = 7,
+    [0] = "uhadd16DNM", "uhasxDNM", "uhsaxDNM", "uhsub16DNM",
+    "uhadd8DNM", false, false, "uhsub8DNM",
+  },
+  { --08
+    shift = 5, mask = 7,
+    [0] = "pkhbtDNMU", false, "pkhtbDNMU",
+    { shift = 16, mask = 15, [15] = "sxtb16DMU", _ = "sxtab16DNMU", },
+    "pkhbtDNMU", "selDNM", "pkhtbDNMU",
+  },
+  false,
+  { --0a
+    shift = 5, mask = 7,
+    [0] = "ssatDxMu", "ssat16DxM", "ssatDxMu",
+    { shift = 16, mask = 15, [15] = "sxtbDMU", _ = "sxtabDNMU", },
+    "ssatDxMu", false, "ssatDxMu",
+  },
+  { --0b
+    shift = 5, mask = 7,
+    [0] = "ssatDxMu", "revDM", "ssatDxMu",
+    { shift = 16, mask = 15, [15] = "sxthDMU", _ = "sxtahDNMU", },
+    "ssatDxMu", "rev16DM", "ssatDxMu",
+  },
+  { --0c
+    shift = 5, mask = 7,
+    [3] = { shift = 16, mask = 15, [15] = "uxtb16DMU", _ = "uxtab16DNMU", },
+  },
+  false,
+  { --0e
+    shift = 5, mask = 7,
+    [0] = "usatDwMu", "usat16DwM", "usatDwMu",
+    { shift = 16, mask = 15, [15] = "uxtbDMU", _ = "uxtabDNMU", },
+    "usatDwMu", false, "usatDwMu",
+  },
+  { --0f
+    shift = 5, mask = 7,
+    [0] = "usatDwMu", "rbitDM", "usatDwMu",
+    { shift = 16, mask = 15, [15] = "uxthDMU", _ = "uxtahDNMU", },
+    "usatDwMu", "revshDM", "usatDwMu",
+  },
+  { --10
+    shift = 12, mask = 15,
+    [15] = {
+      shift = 5, mask = 7,
+      "smuadNMS", "smuadxNMS", "smusdNMS", "smusdxNMS",
+    },
+    _ = {
+      shift = 5, mask = 7,
+      [0] = "smladNMSD", "smladxNMSD", "smlsdNMSD", "smlsdxNMSD",
+    },
+  },
+  false, false, false,
+  { --14
+    shift = 5, mask = 7,
+    [0] = "smlaldDNMS", "smlaldxDNMS", "smlsldDNMS", "smlsldxDNMS",
+  },
+  { --15
+    shift = 5, mask = 7,
+    [0] = { shift = 12, mask = 15, [15] = "smmulNMS", _ = "smmlaNMSD", },
+    { shift = 12, mask = 15, [15] = "smmulrNMS", _ = "smmlarNMSD", },
+    false, false, false, false,
+    "smmlsNMSD", "smmlsrNMSD",
+  },
+  false, false,
+  { --18
+    shift = 5, mask = 7,
+    [0] = { shift = 12, mask = 15, [15] = "usad8NMS", _ = "usada8NMSD", },
+  },
+  false,
+  { --1a
+    shift = 5, mask = 3, [2] = "sbfxDMvw",
+  },
+  { --1b
+    shift = 5, mask = 3, [2] = "sbfxDMvw",
+  },
+  { --1c
+    shift = 5, mask = 3,
+    [0] = { shift = 0, mask = 15, [15] = "bfcDvX", _ = "bfiDMvX", },
+  },
+  { --1d
+    shift = 5, mask = 3,
+    [0] = { shift = 0, mask = 15, [15] = "bfcDvX", _ = "bfiDMvX", },
+  },
+  { --1e
+    shift = 5, mask = 3, [2] = "ubfxDMvw",
+  },
+  { --1f
+    shift = 5, mask = 3, [2] = "ubfxDMvw",
+  },
+}
+
+local map_load = {
+  shift = 21, mask = 9,
+  {
+    shift = 20, mask = 5,
+    [0] = "strtDL", "ldrtDL", [4] = "strbtDL", [5] = "ldrbtDL",
+  },
+  _ = {
+    shift = 20, mask = 5,
+    [0] = "strDL", "ldrDL", [4] = "strbDL", [5] = "ldrbDL",
+  }
+}
+
+local map_load1 = {
+  shift = 4, mask = 1,
+  [0] = map_load, map_media,
+}
+
+local map_loadm = {
+  shift = 20, mask = 1,
+  [0] = {
+    shift = 23, mask = 3,
+    [0] = "stmdaNR", "stmNR",
+    { shift = 16, mask = 63, [45] = "pushR", _ = "stmdbNR", }, "stmibNR",
+  },
+  {
+    shift = 23, mask = 3,
+    [0] = "ldmdaNR", { shift = 16, mask = 63, [61] = "popR", _ = "ldmNR", },
+    "ldmdbNR", "ldmibNR",
+  },
+}
+
+local map_data = {
+  shift = 21, mask = 15,
+  [0] = "andDNPs", "eorDNPs", "subDNPs", "rsbDNPs",
+  "addDNPs", "adcDNPs", "sbcDNPs", "rscDNPs",
+  "tstNP", "teqNP", "cmpNP", "cmnNP",
+  "orrDNPs", "movDPs", "bicDNPs", "mvnDPs",
+}
+
+local map_mul = {
+  shift = 21, mask = 7,
+  [0] = "mulNMSs", "mlaNMSDs", "umaalDNMS", "mlsDNMS",
+  "umullDNMSs", "umlalDNMSs", "smullDNMSs", "smlalDNMSs",
+}
+
+local map_sync = {
+  shift = 20, mask = 15, -- NYI: brackets around N. R(D+1) for ldrexd/strexd.
+  [0] = "swpDMN", false, false, false,
+  "swpbDMN", false, false, false,
+  "strexDMN", "ldrexDN", "strexdDN", "ldrexdDN",
+  "strexbDMN", "ldrexbDN", "strexhDN", "ldrexhDN",
+}
+
+local map_mulh = {
+  shift = 21, mask = 3,
+  [0] = { shift = 5, mask = 3,
+    [0] = "smlabbNMSD", "smlatbNMSD", "smlabtNMSD", "smlattNMSD", },
+  { shift = 5, mask = 3,
+    [0] = "smlawbNMSD", "smulwbNMS", "smlawtNMSD", "smulwtNMS", },
+  { shift = 5, mask = 3,
+    [0] = "smlalbbDNMS", "smlaltbDNMS", "smlalbtDNMS", "smlalttDNMS", },
+  { shift = 5, mask = 3,
+    [0] = "smulbbNMS", "smultbNMS", "smulbtNMS", "smulttNMS", },
+}
+
+local map_misc = {
+  shift = 4, mask = 7,
+  -- NYI: decode PSR bits of msr.
+  [0] = { shift = 21, mask = 1, [0] = "mrsD", "msrM", },
+  { shift = 21, mask = 3, "bxM", false, "clzDM", },
+  { shift = 21, mask = 3, "bxjM", },
+  { shift = 21, mask = 3, "blxM", },
+  false,
+  { shift = 21, mask = 3, [0] = "qaddDMN", "qsubDMN", "qdaddDMN", "qdsubDMN", },
+  false,
+  { shift = 21, mask = 3, "bkptK", },
+}
+
+local map_datar = {
+  shift = 4, mask = 9,
+  [9] = {
+    shift = 5, mask = 3,
+    [0] = { shift = 24, mask = 1, [0] = map_mul, map_sync, },
+    { shift = 20, mask = 1, [0] = "strhDL", "ldrhDL", },
+    { shift = 20, mask = 1, [0] = "ldrdDL", "ldrsbDL", },
+    { shift = 20, mask = 1, [0] = "strdDL", "ldrshDL", },
+  },
+  _ = {
+    shift = 20, mask = 25,
+    [16] = { shift = 7, mask = 1, [0] = map_misc, map_mulh, },
+    _ = {
+      shift = 0, mask = 0xffffffff,
+      [bor(0xe1a00000)] = "nop",
+      _ = map_data,
+    }
+  },
+}
+
+local map_datai = {
+  shift = 20, mask = 31, -- NYI: decode PSR bits of msr. Decode imm12.
+  [16] = "movwDW", [20] = "movtDW",
+  [18] = { shift = 0, mask = 0xf00ff, [0] = "nopv6", _ = "msrNW", },
+  [22] = "msrNW",
+  _ = map_data,
+}
+
+local map_branch = {
+  shift = 24, mask = 1,
+  [0] = "bB", "blB"
+}
+
+local map_condins = {
+  [0] = map_datar, map_datai, map_load, map_load1,
+  map_loadm, map_branch, map_loadc, map_datac
+}
+
+-- NYI: setend.
+local map_uncondins = {
+  [0] = false, map_simddata, map_simdload, map_preload,
+  false, "blxB", map_loadcu, map_datacu,
+}
+
+------------------------------------------------------------------------------
+
+local map_gpr = {
+  [0] = "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+  "r8", "r9", "r10", "r11", "r12", "sp", "lr", "pc",
+}
+
+local map_cond = {
+  [0] = "eq", "ne", "hs", "lo", "mi", "pl", "vs", "vc",
+  "hi", "ls", "ge", "lt", "gt", "le", "al",
+}
+
+local map_shift = { [0] = "lsl", "lsr", "asr", "ror", }
+
+------------------------------------------------------------------------------
+
+-- Output a nicely formatted line with an opcode and operands.
+local function putop(ctx, text, operands)
+  local pos = ctx.pos
+  local extra = ""
+  if ctx.rel then
+    local sym = ctx.symtab[ctx.rel]
+    if sym then
+      extra = "\t->"..sym
+    elseif band(ctx.op, 0x0e000000) ~= 0x0a000000 then
+      extra = "\t; 0x"..tohex(ctx.rel)
+    end
+  end
+  if ctx.hexdump > 0 then
+    ctx.out(format("%08x  %s  %-5s %s%s\n",
+	    ctx.addr+pos, tohex(ctx.op), text, concat(operands, ", "), extra))
+  else
+    ctx.out(format("%08x  %-5s %s%s\n",
+	    ctx.addr+pos, text, concat(operands, ", "), extra))
+  end
+  ctx.pos = pos + 4
+end
+
+-- Fallback for unknown opcodes.
+local function unknown(ctx)
+  return putop(ctx, ".long", { "0x"..tohex(ctx.op) })
+end
+
+-- Format operand 2 of load/store opcodes.
+local function fmtload(ctx, op, pos)
+  local base = map_gpr[band(rshift(op, 16), 15)]
+  local x, ofs
+  local ext = (band(op, 0x04000000) == 0)
+  if not ext and band(op, 0x02000000) == 0 then
+    ofs = band(op, 4095)
+    if band(op, 0x00800000) == 0 then ofs = -ofs end
+    if base == "pc" then ctx.rel = ctx.addr + pos + 8 + ofs end
+    ofs = "#"..ofs
+  elseif ext and band(op, 0x00400000) ~= 0 then
+    ofs = band(op, 15) + band(rshift(op, 4), 0xf0)
+    if band(op, 0x00800000) == 0 then ofs = -ofs end
+    if base == "pc" then ctx.rel = ctx.addr + pos + 8 + ofs end
+    ofs = "#"..ofs
+  else
+    ofs = map_gpr[band(op, 15)]
+    if ext or band(op, 0xfe0) == 0 then
+    elseif band(op, 0xfe0) == 0x60 then
+      ofs = format("%s, rrx", ofs)
+    else
+      local sh = band(rshift(op, 7), 31)
+      if sh == 0 then sh = 32 end
+      ofs = format("%s, %s #%d", ofs, map_shift[band(rshift(op, 5), 3)], sh)
+    end
+    if band(op, 0x00800000) == 0 then ofs = "-"..ofs end
+  end
+  if ofs == "#0" then
+    x = format("[%s]", base)
+  elseif band(op, 0x01000000) == 0 then
+    x = format("[%s], %s", base, ofs)
+  else
+    x = format("[%s, %s]", base, ofs)
+  end
+  if band(op, 0x01200000) == 0x01200000 then x = x.."!" end
+  return x
+end
+
+-- Format operand 2 of vector load/store opcodes.
+local function fmtvload(ctx, op, pos)
+  local base = map_gpr[band(rshift(op, 16), 15)]
+  local ofs = band(op, 255)*4
+  if band(op, 0x00800000) == 0 then ofs = -ofs end
+  if base == "pc" then ctx.rel = ctx.addr + pos + 8 + ofs end
+  if ofs == 0 then
+    return format("[%s]", base)
+  else
+    return format("[%s, #%d]", base, ofs)
+  end
+end
+
+local function fmtvr(op, vr, sh0, sh1)
+  if vr == "s" then
+    return format("s%d", 2*band(rshift(op, sh0), 15)+band(rshift(op, sh1), 1))
+  else
+    return format("d%d", band(rshift(op, sh0), 15)+band(rshift(op, sh1-4), 16))
+  end
+end
+
+-- Disassemble a single instruction.
+local function disass_ins(ctx)
+  local pos = ctx.pos
+  local b0, b1, b2, b3 = byte(ctx.code, pos+1, pos+4)
+  local op = bor(lshift(b3, 24), lshift(b2, 16), lshift(b1, 8), b0)
+  local operands = {}
+  local suffix = ""
+  local last, name, pat
+  local vr
+  ctx.op = op
+  ctx.rel = nil
+
+  local cond = rshift(op, 28)
+  local opat
+  if cond == 15 then
+    opat = map_uncondins[band(rshift(op, 25), 7)]
+  else
+    if cond ~= 14 then suffix = map_cond[cond] end
+    opat = map_condins[band(rshift(op, 25), 7)]
+  end
+  while type(opat) ~= "string" do
+    if not opat then return unknown(ctx) end
+    opat = opat[band(rshift(op, opat.shift), opat.mask)] or opat._
+  end
+  name, pat = match(opat, "^([a-z0-9]*)(.*)")
+  if sub(pat, 1, 1) == "." then
+    local s2, p2 = match(pat, "^([a-z0-9.]*)(.*)")
+    suffix = suffix..s2
+    pat = p2
+  end
+
+  for p in gmatch(pat, ".") do
+    local x = nil
+    if p == "D" then
+      x = map_gpr[band(rshift(op, 12), 15)]
+    elseif p == "N" then
+      x = map_gpr[band(rshift(op, 16), 15)]
+    elseif p == "S" then
+      x = map_gpr[band(rshift(op, 8), 15)]
+    elseif p == "M" then
+      x = map_gpr[band(op, 15)]
+    elseif p == "d" then
+      x = fmtvr(op, vr, 12, 22)
+    elseif p == "n" then
+      x = fmtvr(op, vr, 16, 7)
+    elseif p == "m" then
+      x = fmtvr(op, vr, 0, 5)
+    elseif p == "P" then
+      if band(op, 0x02000000) ~= 0 then
+	x = ror(band(op, 255), 2*band(rshift(op, 8), 15))
+      else
+	x = map_gpr[band(op, 15)]
+	if band(op, 0xff0) ~= 0 then
+	  operands[#operands+1] = x
+	  local s = map_shift[band(rshift(op, 5), 3)]
+	  local r = nil
+	  if band(op, 0xf90) == 0 then
+	    if s == "ror" then s = "rrx" else r = "#32" end
+	  elseif band(op, 0x10) == 0 then
+	    r = "#"..band(rshift(op, 7), 31)
+	  else
+	    r = map_gpr[band(rshift(op, 8), 15)]
+	  end
+	  if name == "mov" then name = s; x = r
+	  elseif r then x = format("%s %s", s, r)
+	  else x = s end
+	end
+      end
+    elseif p == "L" then
+      x = fmtload(ctx, op, pos)
+    elseif p == "l" then
+      x = fmtvload(ctx, op, pos)
+    elseif p == "B" then
+      local addr = ctx.addr + pos + 8 + arshift(lshift(op, 8), 6)
+      if cond == 15 then addr = addr + band(rshift(op, 23), 2) end
+      ctx.rel = addr
+      x = "0x"..tohex(addr)
+    elseif p == "F" then
+      vr = "s"
+    elseif p == "G" then
+      vr = "d"
+    elseif p == "." then
+      suffix = suffix..(vr == "s" and ".f32" or ".f64")
+    elseif p == "R" then
+      if band(op, 0x00200000) ~= 0 and #operands == 1 then
+	operands[1] = operands[1].."!"
+      end
+      local t = {}
+      for i=0,15 do
+	if band(rshift(op, i), 1) == 1 then t[#t+1] = map_gpr[i] end
+      end
+      x = "{"..concat(t, ", ").."}"
+    elseif p == "r" then
+      if band(op, 0x00200000) ~= 0 and #operands == 2 then
+	operands[1] = operands[1].."!"
+      end
+      local s = tonumber(sub(last, 2))
+      local n = band(op, 255)
+      if vr == "d" then n = rshift(n, 1) end
+      operands[#operands] = format("{%s-%s%d}", last, vr, s+n-1)
+    elseif p == "W" then
+      x = band(op, 0x0fff) + band(rshift(op, 4), 0xf000)
+    elseif p == "T" then
+      x = "#0x"..tohex(band(op, 0x00ffffff), 6)
+    elseif p == "U" then
+      x = band(rshift(op, 7), 31)
+      if x == 0 then x = nil end
+    elseif p == "u" then
+      x = band(rshift(op, 7), 31)
+      if band(op, 0x40) == 0 then
+	if x == 0 then x = nil else x = "lsl #"..x end
+      else
+	if x == 0 then x = "asr #32" else x = "asr #"..x end
+      end
+    elseif p == "v" then
+      x = band(rshift(op, 7), 31)
+    elseif p == "w" then
+      x = band(rshift(op, 16), 31)
+    elseif p == "x" then
+      x = band(rshift(op, 16), 31) + 1
+    elseif p == "X" then
+      x = band(rshift(op, 16), 31) - last + 1
+    elseif p == "Y" then
+      x = band(rshift(op, 12), 0xf0) + band(op, 0x0f)
+    elseif p == "K" then
+      x = "#0x"..tohex(band(rshift(op, 4), 0x0000fff0) + band(op, 15), 4)
+    elseif p == "s" then
+      if band(op, 0x00100000) ~= 0 then suffix = "s"..suffix end
+    else
+      assert(false)
+    end
+    if x then
+      last = x
+      if type(x) == "number" then x = "#"..x end
+      operands[#operands+1] = x
+    end
+  end
+
+  return putop(ctx, name..suffix, operands)
+end
+
+------------------------------------------------------------------------------
+
+-- Disassemble a block of code.
+local function disass_block(ctx, ofs, len)
+  if not ofs then ofs = 0 end
+  local stop = len and ofs+len or #ctx.code
+  ctx.pos = ofs
+  ctx.rel = nil
+  while ctx.pos < stop do disass_ins(ctx) end
+end
+
+-- Extended API: create a disassembler context. Then call ctx:disass(ofs, len).
+local function create(code, addr, out)
+  local ctx = {}
+  ctx.code = code
+  ctx.addr = addr or 0
+  ctx.out = out or io.write
+  ctx.symtab = {}
+  ctx.disass = disass_block
+  ctx.hexdump = 8
+  return ctx
+end
+
+-- Simple API: disassemble code (a string) at address and output via out.
+local function disass(code, addr, out)
+  create(code, addr, out):disass()
+end
+
+-- Return register name for RID.
+local function regname(r)
+  if r < 16 then return map_gpr[r] end
+  return "d"..(r-16)
+end
+
+-- Public module functions.
+return {
+  create = create,
+  disass = disass,
+  regname = regname
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/dis_arm64.lua b/libs/luajit-cmake/luajit/src/jit/dis_arm64.lua
new file mode 100644
index 0000000..531584a
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/dis_arm64.lua
@@ -0,0 +1,1216 @@
+----------------------------------------------------------------------------
+-- LuaJIT ARM64 disassembler module.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+--
+-- Contributed by Djordje Kovacevic and Stefan Pejic from RT-RK.com.
+-- Sponsored by Cisco Systems, Inc.
+----------------------------------------------------------------------------
+-- This is a helper module used by the LuaJIT machine code dumper module.
+--
+-- It disassembles most user-mode AArch64 instructions.
+-- NYI: Advanced SIMD and VFP instructions.
+------------------------------------------------------------------------------
+
+local type = type
+local sub, byte, format = string.sub, string.byte, string.format
+local match, gmatch, gsub = string.match, string.gmatch, string.gsub
+local concat = table.concat
+local bit = require("bit")
+local band, bor, bxor, tohex = bit.band, bit.bor, bit.bxor, bit.tohex
+local lshift, rshift, arshift = bit.lshift, bit.rshift, bit.arshift
+local ror = bit.ror
+
+------------------------------------------------------------------------------
+-- Opcode maps
+------------------------------------------------------------------------------
+
+local map_adr = { -- PC-relative addressing.
+  shift = 31, mask = 1,
+  [0] = "adrDBx", "adrpDBx"
+}
+
+local map_addsubi = { -- Add/subtract immediate.
+  shift = 29, mask = 3,
+  [0] = "add|movDNIg", "adds|cmnD0NIg", "subDNIg", "subs|cmpD0NIg",
+}
+
+local map_logi = { -- Logical immediate.
+  shift = 31, mask = 1,
+  [0] = {
+    shift = 22, mask = 1,
+    [0] = {
+      shift = 29, mask = 3,
+      [0] = "andDNig", "orr|movDN0ig", "eorDNig", "ands|tstD0Nig"
+    },
+    false -- unallocated
+  },
+  {
+    shift = 29, mask = 3,
+    [0] = "andDNig", "orr|movDN0ig", "eorDNig", "ands|tstD0Nig"
+  }
+}
+
+local map_movwi = { -- Move wide immediate.
+  shift = 31, mask = 1,
+  [0] = {
+    shift = 22, mask = 1,
+    [0] = {
+      shift = 29, mask = 3,
+      [0] = "movnDWRg", false, "movz|movDYRg", "movkDWRg"
+    }, false -- unallocated
+  },
+  {
+    shift = 29, mask = 3,
+    [0] = "movnDWRg", false, "movz|movDYRg", "movkDWRg"
+  },
+}
+
+local map_bitf = { -- Bitfield.
+  shift = 31, mask = 1,
+  [0] = {
+    shift = 22, mask = 1,
+    [0] = {
+      shift = 29, mask = 3,
+      [0] = "sbfm|sbfiz|sbfx|asr|sxtw|sxth|sxtbDN12w",
+      "bfm|bfi|bfxilDN13w",
+      "ubfm|ubfiz|ubfx|lsr|lsl|uxth|uxtbDN12w"
+    }
+  },
+  {
+    shift = 22, mask = 1,
+    {
+      shift = 29, mask = 3,
+      [0] = "sbfm|sbfiz|sbfx|asr|sxtw|sxth|sxtbDN12x",
+      "bfm|bfi|bfxilDN13x",
+      "ubfm|ubfiz|ubfx|lsr|lsl|uxth|uxtbDN12x"
+    }
+  }
+}
+
+local map_datai = { -- Data processing - immediate.
+  shift = 23, mask = 7,
+  [0] = map_adr, map_adr, map_addsubi, false,
+  map_logi, map_movwi, map_bitf,
+  {
+    shift = 15, mask = 0x1c0c1,
+    [0] = "extr|rorDNM4w", [0x10080] = "extr|rorDNM4x",
+    [0x10081] = "extr|rorDNM4x"
+  }
+}
+
+local map_logsr = { -- Logical, shifted register.
+  shift = 31, mask = 1,
+  [0] = {
+    shift = 15, mask = 1,
+    [0] = {
+      shift = 29, mask = 3,
+      [0] = {
+	shift = 21, mask = 7,
+	[0] = "andDNMSg", "bicDNMSg", "andDNMSg", "bicDNMSg",
+	"andDNMSg", "bicDNMSg", "andDNMg", "bicDNMg"
+      },
+      {
+	shift = 21, mask = 7,
+	[0] ="orr|movDN0MSg", "orn|mvnDN0MSg", "orr|movDN0MSg", "orn|mvnDN0MSg",
+	     "orr|movDN0MSg", "orn|mvnDN0MSg", "orr|movDN0Mg", "orn|mvnDN0Mg"
+      },
+      {
+	shift = 21, mask = 7,
+	[0] = "eorDNMSg", "eonDNMSg", "eorDNMSg", "eonDNMSg",
+	"eorDNMSg", "eonDNMSg", "eorDNMg", "eonDNMg"
+      },
+      {
+	shift = 21, mask = 7,
+	[0] = "ands|tstD0NMSg", "bicsDNMSg", "ands|tstD0NMSg", "bicsDNMSg",
+	"ands|tstD0NMSg", "bicsDNMSg", "ands|tstD0NMg", "bicsDNMg"
+      }
+    },
+    false -- unallocated
+  },
+  {
+    shift = 29, mask = 3,
+    [0] = {
+      shift = 21, mask = 7,
+      [0] = "andDNMSg", "bicDNMSg", "andDNMSg", "bicDNMSg",
+      "andDNMSg", "bicDNMSg", "andDNMg", "bicDNMg"
+    },
+    {
+      shift = 21, mask = 7,
+      [0] = "orr|movDN0MSg", "orn|mvnDN0MSg", "orr|movDN0MSg", "orn|mvnDN0MSg",
+      "orr|movDN0MSg", "orn|mvnDN0MSg", "orr|movDN0Mg", "orn|mvnDN0Mg"
+    },
+    {
+      shift = 21, mask = 7,
+      [0] = "eorDNMSg", "eonDNMSg", "eorDNMSg", "eonDNMSg",
+      "eorDNMSg", "eonDNMSg", "eorDNMg", "eonDNMg"
+    },
+    {
+      shift = 21, mask = 7,
+      [0] = "ands|tstD0NMSg", "bicsDNMSg", "ands|tstD0NMSg", "bicsDNMSg",
+      "ands|tstD0NMSg", "bicsDNMSg", "ands|tstD0NMg", "bicsDNMg"
+    }
+  }
+}
+
+local map_assh = {
+  shift = 31, mask = 1,
+  [0] = {
+    shift = 15, mask = 1,
+    [0] = {
+      shift = 29, mask = 3,
+      [0] = {
+	shift = 22, mask = 3,
+	[0] = "addDNMSg", "addDNMSg", "addDNMSg", "addDNMg"
+      },
+      {
+	shift = 22, mask = 3,
+	[0] = "adds|cmnD0NMSg", "adds|cmnD0NMSg",
+	      "adds|cmnD0NMSg", "adds|cmnD0NMg"
+      },
+      {
+	shift = 22, mask = 3,
+	[0] = "sub|negDN0MSg", "sub|negDN0MSg", "sub|negDN0MSg", "sub|negDN0Mg"
+      },
+      {
+	shift = 22, mask = 3,
+	[0] = "subs|cmp|negsD0N0MzSg", "subs|cmp|negsD0N0MzSg",
+	      "subs|cmp|negsD0N0MzSg", "subs|cmp|negsD0N0Mzg"
+      },
+    },
+    false -- unallocated
+  },
+  {
+    shift = 29, mask = 3,
+    [0] = {
+      shift = 22, mask = 3,
+      [0] = "addDNMSg", "addDNMSg", "addDNMSg", "addDNMg"
+    },
+    {
+      shift = 22, mask = 3,
+      [0] = "adds|cmnD0NMSg", "adds|cmnD0NMSg", "adds|cmnD0NMSg",
+	    "adds|cmnD0NMg"
+    },
+    {
+      shift = 22, mask = 3,
+      [0] = "sub|negDN0MSg", "sub|negDN0MSg", "sub|negDN0MSg", "sub|negDN0Mg"
+    },
+    {
+      shift = 22, mask = 3,
+      [0] = "subs|cmp|negsD0N0MzSg", "subs|cmp|negsD0N0MzSg",
+	    "subs|cmp|negsD0N0MzSg", "subs|cmp|negsD0N0Mzg"
+    }
+  }
+}
+
+local map_addsubsh = { -- Add/subtract, shifted register.
+  shift = 22, mask = 3,
+  [0] = map_assh, map_assh, map_assh
+}
+
+local map_addsubex = { -- Add/subtract, extended register.
+  shift = 22, mask = 3,
+  [0] = {
+    shift = 29, mask = 3,
+    [0] = "addDNMXg", "adds|cmnD0NMXg", "subDNMXg", "subs|cmpD0NMzXg",
+  }
+}
+
+local map_addsubc = { -- Add/subtract, with carry.
+  shift = 10, mask = 63,
+  [0] = {
+    shift = 29, mask = 3,
+    [0] = "adcDNMg", "adcsDNMg", "sbc|ngcDN0Mg", "sbcs|ngcsDN0Mg",
+  }
+}
+
+local map_ccomp = {
+  shift = 4, mask = 1,
+  [0] = {
+    shift = 10, mask = 3,
+    [0] = { -- Conditional compare register.
+      shift = 29, mask = 3,
+      "ccmnNMVCg", false, "ccmpNMVCg",
+    },
+    [2] = {  -- Conditional compare immediate.
+      shift = 29, mask = 3,
+      "ccmnN5VCg", false, "ccmpN5VCg",
+    }
+  }
+}
+
+local map_csel = { -- Conditional select.
+  shift = 11, mask = 1,
+  [0] = {
+    shift = 10, mask = 1,
+    [0] = {
+      shift = 29, mask = 3,
+      [0] = "cselDNMzCg", false, "csinv|cinv|csetmDNMcg", false,
+    },
+    {
+      shift = 29, mask = 3,
+      [0] = "csinc|cinc|csetDNMcg", false, "csneg|cnegDNMcg", false,
+    }
+  }
+}
+
+local map_data1s = { -- Data processing, 1 source.
+  shift = 29, mask = 1,
+  [0] = {
+    shift = 31, mask = 1,
+    [0] = {
+      shift = 10, mask = 0x7ff,
+      [0] = "rbitDNg", "rev16DNg", "revDNw", false, "clzDNg", "clsDNg"
+    },
+    {
+      shift = 10, mask = 0x7ff,
+      [0] = "rbitDNg", "rev16DNg", "rev32DNx", "revDNx", "clzDNg", "clsDNg"
+    }
+  }
+}
+
+local map_data2s = { -- Data processing, 2 sources.
+  shift = 29, mask = 1,
+  [0] = {
+    shift = 10, mask = 63,
+    false, "udivDNMg", "sdivDNMg", false, false, false, false, "lslDNMg",
+    "lsrDNMg", "asrDNMg", "rorDNMg"
+  }
+}
+
+local map_data3s = { -- Data processing, 3 sources.
+  shift = 29, mask = 7,
+  [0] = {
+    shift = 21, mask = 7,
+    [0] = {
+      shift = 15, mask = 1,
+      [0] = "madd|mulDNMA0g", "msub|mnegDNMA0g"
+    }
+  }, false, false, false,
+  {
+    shift = 15, mask = 1,
+    [0] = {
+      shift = 21, mask = 7,
+      [0] = "madd|mulDNMA0g", "smaddl|smullDxNMwA0x", "smulhDNMx", false,
+      false, "umaddl|umullDxNMwA0x", "umulhDNMx"
+    },
+    {
+      shift = 21, mask = 7,
+      [0] = "msub|mnegDNMA0g", "smsubl|smneglDxNMwA0x", false, false,
+      false, "umsubl|umneglDxNMwA0x"
+    }
+  }
+}
+
+local map_datar = { -- Data processing, register.
+  shift = 28, mask = 1,
+  [0] = {
+    shift = 24, mask = 1,
+    [0] = map_logsr,
+    {
+      shift = 21, mask = 1,
+      [0] = map_addsubsh, map_addsubex
+    }
+  },
+  {
+    shift = 21, mask = 15,
+    [0] = map_addsubc, false, map_ccomp, false, map_csel, false,
+    {
+      shift = 30, mask = 1,
+      [0] = map_data2s, map_data1s
+    },
+    false, map_data3s, map_data3s, map_data3s, map_data3s, map_data3s,
+    map_data3s, map_data3s, map_data3s
+  }
+}
+
+local map_lrl = { -- Load register, literal.
+  shift = 26, mask = 1,
+  [0] = {
+    shift = 30, mask = 3,
+    [0] = "ldrDwB", "ldrDxB", "ldrswDxB"
+  },
+  {
+    shift = 30, mask = 3,
+    [0] = "ldrDsB", "ldrDdB"
+  }
+}
+
+local map_lsriind = { -- Load/store register, immediate pre/post-indexed.
+  shift = 30, mask = 3,
+  [0] = {
+    shift = 26, mask = 1,
+    [0] = {
+      shift = 22, mask = 3,
+      [0] = "strbDwzL", "ldrbDwzL", "ldrsbDxzL", "ldrsbDwzL"
+    }
+  },
+  {
+    shift = 26, mask = 1,
+    [0] = {
+      shift = 22, mask = 3,
+      [0] = "strhDwzL", "ldrhDwzL", "ldrshDxzL", "ldrshDwzL"
+    }
+  },
+  {
+    shift = 26, mask = 1,
+    [0] = {
+      shift = 22, mask = 3,
+      [0] = "strDwzL", "ldrDwzL", "ldrswDxzL"
+    },
+    {
+      shift = 22, mask = 3,
+      [0] = "strDszL", "ldrDszL"
+    }
+  },
+  {
+    shift = 26, mask = 1,
+    [0] = {
+      shift = 22, mask = 3,
+      [0] = "strDxzL", "ldrDxzL"
+    },
+    {
+      shift = 22, mask = 3,
+      [0] = "strDdzL", "ldrDdzL"
+    }
+  }
+}
+
+local map_lsriro = {
+  shift = 21, mask = 1,
+  [0] = {  -- Load/store register immediate.
+    shift = 10, mask = 3,
+    [0] = { -- Unscaled immediate.
+      shift = 26, mask = 1,
+      [0] = {
+	shift = 30, mask = 3,
+	[0] = {
+	  shift = 22, mask = 3,
+	  [0] = "sturbDwK", "ldurbDwK"
+	},
+	{
+	  shift = 22, mask = 3,
+	  [0] = "sturhDwK", "ldurhDwK"
+	},
+	{
+	  shift = 22, mask = 3,
+	  [0] = "sturDwK", "ldurDwK"
+	},
+	{
+	  shift = 22, mask = 3,
+	  [0] = "sturDxK", "ldurDxK"
+	}
+      }
+    }, map_lsriind, false, map_lsriind
+  },
+  {  -- Load/store register, register offset.
+    shift = 10, mask = 3,
+    [2] = {
+      shift = 26, mask = 1,
+      [0] = {
+	shift = 30, mask = 3,
+	[0] = {
+	  shift = 22, mask = 3,
+	  [0] = "strbDwO", "ldrbDwO", "ldrsbDxO", "ldrsbDwO"
+	},
+	{
+	  shift = 22, mask = 3,
+	  [0] = "strhDwO", "ldrhDwO", "ldrshDxO", "ldrshDwO"
+	},
+	{
+	  shift = 22, mask = 3,
+	  [0] = "strDwO", "ldrDwO", "ldrswDxO"
+	},
+	{
+	  shift = 22, mask = 3,
+	  [0] = "strDxO", "ldrDxO"
+	}
+      },
+      {
+	shift = 30, mask = 3,
+	[2] = {
+	  shift = 22, mask = 3,
+	  [0] = "strDsO", "ldrDsO"
+	},
+	[3] = {
+	  shift = 22, mask = 3,
+	  [0] = "strDdO", "ldrDdO"
+	}
+      }
+    }
+  }
+}
+
+local map_lsp = { -- Load/store register pair, offset.
+  shift = 22, mask = 1,
+  [0] = {
+    shift = 30, mask = 3,
+    [0] = {
+      shift = 26, mask = 1,
+      [0] = "stpDzAzwP", "stpDzAzsP",
+    },
+    {
+      shift = 26, mask = 1,
+      "stpDzAzdP"
+    },
+    {
+      shift = 26, mask = 1,
+      [0] = "stpDzAzxP"
+    }
+  },
+  {
+    shift = 30, mask = 3,
+    [0] = {
+      shift = 26, mask = 1,
+      [0] = "ldpDzAzwP", "ldpDzAzsP",
+    },
+    {
+      shift = 26, mask = 1,
+      [0] = "ldpswDAxP", "ldpDzAzdP"
+    },
+    {
+      shift = 26, mask = 1,
+      [0] = "ldpDzAzxP"
+    }
+  }
+}
+
+local map_ls = { -- Loads and stores.
+  shift = 24, mask = 0x31,
+  [0x10] = map_lrl, [0x30] = map_lsriro,
+  [0x20] = {
+    shift = 23, mask = 3,
+    map_lsp, map_lsp, map_lsp
+  },
+  [0x21] = {
+    shift = 23, mask = 3,
+    map_lsp, map_lsp, map_lsp
+  },
+  [0x31] = {
+    shift = 26, mask = 1,
+    [0] = {
+      shift = 30, mask = 3,
+      [0] = {
+	shift = 22, mask = 3,
+	[0] = "strbDwzU", "ldrbDwzU"
+      },
+      {
+	shift = 22, mask = 3,
+	[0] = "strhDwzU", "ldrhDwzU"
+      },
+      {
+	shift = 22, mask = 3,
+	[0] = "strDwzU", "ldrDwzU"
+      },
+      {
+	shift = 22, mask = 3,
+	[0] = "strDxzU", "ldrDxzU"
+      }
+    },
+    {
+      shift = 30, mask = 3,
+      [2] = {
+	shift = 22, mask = 3,
+	[0] = "strDszU", "ldrDszU"
+      },
+      [3] = {
+	shift = 22, mask = 3,
+	[0] = "strDdzU", "ldrDdzU"
+      }
+    }
+  },
+}
+
+local map_datafp = { -- Data processing, SIMD and FP.
+  shift = 28, mask = 7,
+  { -- 001
+    shift = 24, mask = 1,
+    [0] = {
+      shift = 21, mask = 1,
+      {
+	shift = 10, mask = 3,
+	[0] = {
+	  shift = 12, mask = 1,
+	  [0] = {
+	    shift = 13, mask = 1,
+	    [0] = {
+	      shift = 14, mask = 1,
+	      [0] = {
+		shift = 15, mask = 1,
+		[0] = { -- FP/int conversion.
+		  shift = 31, mask = 1,
+		  [0] = {
+		    shift = 16, mask = 0xff,
+		    [0x20] = "fcvtnsDwNs", [0x21] = "fcvtnuDwNs",
+		    [0x22] = "scvtfDsNw", [0x23] = "ucvtfDsNw",
+		    [0x24] = "fcvtasDwNs", [0x25] = "fcvtauDwNs",
+		    [0x26] = "fmovDwNs", [0x27] = "fmovDsNw",
+		    [0x28] = "fcvtpsDwNs", [0x29] = "fcvtpuDwNs",
+		    [0x30] = "fcvtmsDwNs", [0x31] = "fcvtmuDwNs",
+		    [0x38] = "fcvtzsDwNs", [0x39] = "fcvtzuDwNs",
+		    [0x60] = "fcvtnsDwNd", [0x61] = "fcvtnuDwNd",
+		    [0x62] = "scvtfDdNw", [0x63] = "ucvtfDdNw",
+		    [0x64] = "fcvtasDwNd", [0x65] = "fcvtauDwNd",
+		    [0x68] = "fcvtpsDwNd", [0x69] = "fcvtpuDwNd",
+		    [0x70] = "fcvtmsDwNd", [0x71] = "fcvtmuDwNd",
+		    [0x78] = "fcvtzsDwNd", [0x79] = "fcvtzuDwNd"
+		  },
+		  {
+		    shift = 16, mask = 0xff,
+		    [0x20] = "fcvtnsDxNs", [0x21] = "fcvtnuDxNs",
+		    [0x22] = "scvtfDsNx", [0x23] = "ucvtfDsNx",
+		    [0x24] = "fcvtasDxNs", [0x25] = "fcvtauDxNs",
+		    [0x28] = "fcvtpsDxNs", [0x29] = "fcvtpuDxNs",
+		    [0x30] = "fcvtmsDxNs", [0x31] = "fcvtmuDxNs",
+		    [0x38] = "fcvtzsDxNs", [0x39] = "fcvtzuDxNs",
+		    [0x60] = "fcvtnsDxNd", [0x61] = "fcvtnuDxNd",
+		    [0x62] = "scvtfDdNx", [0x63] = "ucvtfDdNx",
+		    [0x64] = "fcvtasDxNd", [0x65] = "fcvtauDxNd",
+		    [0x66] = "fmovDxNd", [0x67] = "fmovDdNx",
+		    [0x68] = "fcvtpsDxNd", [0x69] = "fcvtpuDxNd",
+		    [0x70] = "fcvtmsDxNd", [0x71] = "fcvtmuDxNd",
+		    [0x78] = "fcvtzsDxNd", [0x79] = "fcvtzuDxNd"
+		  }
+		}
+	      },
+	      { -- FP data-processing, 1 source.
+		shift = 31, mask = 1,
+		[0] = {
+		  shift = 22, mask = 3,
+		  [0] = {
+		    shift = 15, mask = 63,
+		    [0] = "fmovDNf", "fabsDNf", "fnegDNf",
+		    "fsqrtDNf", false, "fcvtDdNs", false, false,
+		    "frintnDNf", "frintpDNf", "frintmDNf", "frintzDNf",
+		    "frintaDNf", false, "frintxDNf", "frintiDNf",
+		  },
+		  {
+		    shift = 15, mask = 63,
+		    [0] = "fmovDNf", "fabsDNf", "fnegDNf",
+		    "fsqrtDNf", "fcvtDsNd", false, false, false,
+		    "frintnDNf", "frintpDNf", "frintmDNf", "frintzDNf",
+		    "frintaDNf", false, "frintxDNf", "frintiDNf",
+		  }
+		}
+	      }
+	    },
+	    { -- FP compare.
+	      shift = 31, mask = 1,
+	      [0] = {
+		shift = 14, mask = 3,
+		[0] = {
+		  shift = 23, mask = 1,
+		  [0] = {
+		    shift = 0, mask = 31,
+		    [0] = "fcmpNMf", [8] = "fcmpNZf",
+		    [16] = "fcmpeNMf", [24] = "fcmpeNZf",
+		  }
+		}
+	      }
+	    }
+	  },
+	  { -- FP immediate.
+	    shift = 31, mask = 1,
+	    [0] = {
+	      shift = 5, mask = 31,
+	      [0] = {
+		shift = 23, mask = 1,
+		[0] = "fmovDFf"
+	      }
+	    }
+	  }
+	},
+	{ -- FP conditional compare.
+	  shift = 31, mask = 1,
+	  [0] = {
+	    shift = 23, mask = 1,
+	    [0] = {
+	      shift = 4, mask = 1,
+	      [0] = "fccmpNMVCf", "fccmpeNMVCf"
+	    }
+	  }
+	},
+	{ -- FP data-processing, 2 sources.
+	  shift = 31, mask = 1,
+	  [0] = {
+	    shift = 23, mask = 1,
+	    [0] = {
+	      shift = 12, mask = 15,
+	      [0] = "fmulDNMf", "fdivDNMf", "faddDNMf", "fsubDNMf",
+	      "fmaxDNMf", "fminDNMf", "fmaxnmDNMf", "fminnmDNMf",
+	      "fnmulDNMf"
+	    }
+	  }
+	},
+	{ -- FP conditional select.
+	  shift = 31, mask = 1,
+	  [0] = {
+	    shift = 23, mask = 1,
+	    [0] = "fcselDNMCf"
+	  }
+	}
+      }
+    },
+    { -- FP data-processing, 3 sources.
+      shift = 31, mask = 1,
+      [0] = {
+	shift = 15, mask = 1,
+	[0] = {
+	  shift = 21, mask = 5,
+	  [0] = "fmaddDNMAf", "fnmaddDNMAf"
+	},
+	{
+	  shift = 21, mask = 5,
+	  [0] = "fmsubDNMAf", "fnmsubDNMAf"
+	}
+      }
+    }
+  }
+}
+
+local map_br = { -- Branches, exception generating and system instructions.
+  shift = 29, mask = 7,
+  [0] = "bB",
+  { -- Compare & branch, immediate.
+    shift = 24, mask = 3,
+    [0] = "cbzDBg", "cbnzDBg", "tbzDTBw", "tbnzDTBw"
+  },
+  { -- Conditional branch, immediate.
+    shift = 24, mask = 3,
+    [0] = {
+      shift = 4, mask = 1,
+      [0] = {
+	shift = 0, mask = 15,
+	[0] = "beqB", "bneB", "bhsB", "bloB", "bmiB", "bplB", "bvsB", "bvcB",
+	"bhiB", "blsB", "bgeB", "bltB", "bgtB", "bleB", "balB"
+      }
+    }
+  }, false, "blB",
+  { -- Compare & branch, immediate.
+    shift = 24, mask = 3,
+    [0] = "cbzDBg", "cbnzDBg", "tbzDTBx", "tbnzDTBx"
+  },
+  {
+    shift = 24, mask = 3,
+    [0] = { -- Exception generation.
+      shift = 0, mask = 0xe0001f,
+      [0x200000] = "brkW"
+    },
+    { -- System instructions.
+      shift = 0, mask = 0x3fffff,
+      [0x03201f] = "nop"
+    },
+    { -- Unconditional branch, register.
+      shift = 0, mask = 0xfffc1f,
+      [0x1f0000] = "brNx", [0x3f0000] = "blrNx",
+      [0x5f0000] = "retNx"
+    },
+  }
+}
+
+local map_init = {
+  shift = 25, mask = 15,
+  [0] = false, false, false, false, map_ls, map_datar, map_ls, map_datafp,
+  map_datai, map_datai, map_br, map_br, map_ls, map_datar, map_ls, map_datafp
+}
+
+------------------------------------------------------------------------------
+
+local map_regs = { x = {}, w = {}, d = {}, s = {} }
+
+for i=0,30 do
+  map_regs.x[i] = "x"..i
+  map_regs.w[i] = "w"..i
+  map_regs.d[i] = "d"..i
+  map_regs.s[i] = "s"..i
+end
+map_regs.x[31] = "sp"
+map_regs.w[31] = "wsp"
+map_regs.d[31] = "d31"
+map_regs.s[31] = "s31"
+
+local map_cond = {
+  [0] = "eq", "ne", "cs", "cc", "mi", "pl", "vs", "vc",
+  "hi", "ls", "ge", "lt", "gt", "le", "al",
+}
+
+local map_shift = { [0] = "lsl", "lsr", "asr", }
+
+local map_extend = {
+  [0] = "uxtb", "uxth", "uxtw", "uxtx", "sxtb", "sxth", "sxtw", "sxtx",
+}
+
+------------------------------------------------------------------------------
+
+-- Output a nicely formatted line with an opcode and operands.
+local function putop(ctx, text, operands)
+  local pos = ctx.pos
+  local extra = ""
+  if ctx.rel then
+    local sym = ctx.symtab[ctx.rel]
+    if sym then
+      extra = "\t->"..sym
+    end
+  end
+  if ctx.hexdump > 0 then
+    ctx.out(format("%08x  %s  %-5s %s%s\n",
+      ctx.addr+pos, tohex(ctx.op), text, concat(operands, ", "), extra))
+  else
+    ctx.out(format("%08x  %-5s %s%s\n",
+      ctx.addr+pos, text, concat(operands, ", "), extra))
+  end
+  ctx.pos = pos + 4
+end
+
+-- Fallback for unknown opcodes.
+local function unknown(ctx)
+  return putop(ctx, ".long", { "0x"..tohex(ctx.op) })
+end
+
+local function match_reg(p, pat, regnum)
+  return map_regs[match(pat, p.."%w-([xwds])")][regnum]
+end
+
+local function fmt_hex32(x)
+  if x < 0 then
+    return tohex(x)
+  else
+    return format("%x", x)
+  end
+end
+
+local imm13_rep = { 0x55555555, 0x11111111, 0x01010101, 0x00010001, 0x00000001 }
+
+local function decode_imm13(op)
+  local imms = band(rshift(op, 10), 63)
+  local immr = band(rshift(op, 16), 63)
+  if band(op, 0x00400000) == 0 then
+    local len = 5
+    if imms >= 56 then
+      if imms >= 60 then len = 1 else len = 2 end
+    elseif imms >= 48 then len = 3 elseif imms >= 32 then len = 4 end
+    local l = lshift(1, len)-1
+    local s = band(imms, l)
+    local r = band(immr, l)
+    local imm = ror(rshift(-1, 31-s), r)
+    if len ~= 5 then imm = band(imm, lshift(1, l)-1) + rshift(imm, 31-l) end
+    imm = imm * imm13_rep[len]
+    local ix = fmt_hex32(imm)
+    if rshift(op, 31) ~= 0 then
+      return ix..tohex(imm)
+    else
+      return ix
+    end
+  else
+    local lo, hi = -1, 0
+    if imms < 32 then lo = rshift(-1, 31-imms) else hi = rshift(-1, 63-imms) end
+    if immr ~= 0 then
+      lo, hi = ror(lo, immr), ror(hi, immr)
+      local x = immr == 32 and 0 or band(bxor(lo, hi), lshift(-1, 32-immr))
+      lo, hi = bxor(lo, x), bxor(hi, x)
+      if immr >= 32 then lo, hi = hi, lo end
+    end
+    if hi ~= 0 then
+      return fmt_hex32(hi)..tohex(lo)
+    else
+      return fmt_hex32(lo)
+    end
+  end
+end
+
+local function parse_immpc(op, name)
+  if name == "b" or name == "bl" then
+    return arshift(lshift(op, 6), 4)
+  elseif name == "adr" or name == "adrp" then
+    local immlo = band(rshift(op, 29), 3)
+    local immhi = lshift(arshift(lshift(op, 8), 13), 2)
+    return bor(immhi, immlo)
+  elseif name == "tbz" or name == "tbnz" then
+    return lshift(arshift(lshift(op, 13), 18), 2)
+  else
+    return lshift(arshift(lshift(op, 8), 13), 2)
+  end
+end
+
+local function parse_fpimm8(op)
+  local sign = band(op, 0x100000) == 0 and 1 or -1
+  local exp = bxor(rshift(arshift(lshift(op, 12), 5), 24), 0x80) - 131
+  local frac = 16+band(rshift(op, 13), 15)
+  return sign * frac * 2^exp
+end
+
+local function prefer_bfx(sf, uns, imms, immr)
+  if imms < immr or imms == 31 or imms == 63 then
+    return false
+  end
+  if immr == 0 then
+    if sf == 0 and (imms == 7 or imms == 15) then
+      return false
+    end
+    if sf ~= 0 and uns == 0 and (imms == 7 or imms == 15 or imms == 31) then
+      return false
+    end
+  end
+  return true
+end
+
+-- Disassemble a single instruction.
+local function disass_ins(ctx)
+  local pos = ctx.pos
+  local b0, b1, b2, b3 = byte(ctx.code, pos+1, pos+4)
+  local op = bor(lshift(b3, 24), lshift(b2, 16), lshift(b1, 8), b0)
+  local operands = {}
+  local suffix = ""
+  local last, name, pat
+  local map_reg
+  ctx.op = op
+  ctx.rel = nil
+  last = nil
+  local opat
+  opat = map_init[band(rshift(op, 25), 15)]
+  while type(opat) ~= "string" do
+    if not opat then return unknown(ctx) end
+    opat = opat[band(rshift(op, opat.shift), opat.mask)] or opat._
+  end
+  name, pat = match(opat, "^([a-z0-9]*)(.*)")
+  local altname, pat2 = match(pat, "|([a-z0-9_.|]*)(.*)")
+  if altname then pat = pat2 end
+  if sub(pat, 1, 1) == "." then
+    local s2, p2 = match(pat, "^([a-z0-9.]*)(.*)")
+    suffix = suffix..s2
+    pat = p2
+  end
+
+  local rt = match(pat, "[gf]")
+  if rt then
+    if rt == "g" then
+      map_reg = band(op, 0x80000000) ~= 0 and map_regs.x or map_regs.w
+    else
+      map_reg = band(op, 0x400000) ~= 0 and map_regs.d or map_regs.s
+    end
+  end
+
+  local second0, immr
+
+  for p in gmatch(pat, ".") do
+    local x = nil
+    if p == "D" then
+      local regnum = band(op, 31)
+      x = rt and map_reg[regnum] or match_reg(p, pat, regnum)
+    elseif p == "N" then
+      local regnum = band(rshift(op, 5), 31)
+      x = rt and map_reg[regnum] or match_reg(p, pat, regnum)
+    elseif p == "M" then
+      local regnum = band(rshift(op, 16), 31)
+      x = rt and map_reg[regnum] or match_reg(p, pat, regnum)
+    elseif p == "A" then
+      local regnum = band(rshift(op, 10), 31)
+      x = rt and map_reg[regnum] or match_reg(p, pat, regnum)
+    elseif p == "B" then
+      local addr = ctx.addr + pos + parse_immpc(op, name)
+      ctx.rel = addr
+      x = "0x"..tohex(addr)
+    elseif p == "T" then
+      x = bor(band(rshift(op, 26), 32), band(rshift(op, 19), 31))
+    elseif p == "V" then
+      x = band(op, 15)
+    elseif p == "C" then
+      x = map_cond[band(rshift(op, 12), 15)]
+    elseif p == "c" then
+      local rn = band(rshift(op, 5), 31)
+      local rm = band(rshift(op, 16), 31)
+      local cond = band(rshift(op, 12), 15)
+      local invc = bxor(cond, 1)
+      x = map_cond[cond]
+      if altname and cond ~= 14 and cond ~= 15 then
+	local a1, a2 = match(altname, "([^|]*)|(.*)")
+	if rn == rm then
+	  local n = #operands
+	  operands[n] = nil
+	  x = map_cond[invc]
+	  if rn ~= 31 then
+	    if a1 then name = a1 else name = altname end
+	  else
+	    operands[n-1] = nil
+	    name = a2
+	  end
+	end
+      end
+    elseif p == "W" then
+      x = band(rshift(op, 5), 0xffff)
+    elseif p == "Y" then
+      x = band(rshift(op, 5), 0xffff)
+      local hw = band(rshift(op, 21), 3)
+      if altname and (hw == 0 or x ~= 0) then
+	name = altname
+      end
+    elseif p == "L" then
+      local rn = map_regs.x[band(rshift(op, 5), 31)]
+      local imm9 = arshift(lshift(op, 11), 23)
+      if band(op, 0x800) ~= 0 then
+	x = "["..rn..", #"..imm9.."]!"
+      else
+	x = "["..rn.."], #"..imm9
+      end
+    elseif p == "U" then
+      local rn = map_regs.x[band(rshift(op, 5), 31)]
+      local sz = band(rshift(op, 30), 3)
+      local imm12 = lshift(arshift(lshift(op, 10), 20), sz)
+      if imm12 ~= 0 then
+	x = "["..rn..", #"..imm12.."]"
+      else
+	x = "["..rn.."]"
+      end
+    elseif p == "K" then
+      local rn = map_regs.x[band(rshift(op, 5), 31)]
+      local imm9 = arshift(lshift(op, 11), 23)
+      if imm9 ~= 0 then
+	x = "["..rn..", #"..imm9.."]"
+      else
+	x = "["..rn.."]"
+      end
+    elseif p == "O" then
+      local rn, rm = map_regs.x[band(rshift(op, 5), 31)]
+      local m = band(rshift(op, 13), 1)
+      if m == 0 then
+	rm = map_regs.w[band(rshift(op, 16), 31)]
+      else
+	rm = map_regs.x[band(rshift(op, 16), 31)]
+      end
+      x = "["..rn..", "..rm
+      local opt = band(rshift(op, 13), 7)
+      local s = band(rshift(op, 12), 1)
+      local sz = band(rshift(op, 30), 3)
+      -- extension to be applied
+      if opt == 3 then
+       if s == 0 then x = x.."]"
+       else x = x..", lsl #"..sz.."]" end
+      elseif opt == 2 or opt == 6 or opt == 7 then
+	if s == 0 then x = x..", "..map_extend[opt].."]"
+	else x = x..", "..map_extend[opt].." #"..sz.."]" end
+      else
+	x = x.."]"
+      end
+    elseif p == "P" then
+      local opcv, sh = rshift(op, 26), 2
+      if opcv >= 0x2a then sh = 4 elseif opcv >= 0x1b then sh = 3 end
+      local imm7 = lshift(arshift(lshift(op, 10), 25), sh)
+      local rn = map_regs.x[band(rshift(op, 5), 31)]
+      local ind = band(rshift(op, 23), 3)
+      if ind == 1 then
+	x = "["..rn.."], #"..imm7
+      elseif ind == 2 then
+	if imm7 == 0 then
+	  x = "["..rn.."]"
+	else
+	  x = "["..rn..", #"..imm7.."]"
+	end
+      elseif ind == 3 then
+	x = "["..rn..", #"..imm7.."]!"
+      end
+    elseif p == "I" then
+      local shf = band(rshift(op, 22), 3)
+      local imm12 = band(rshift(op, 10), 0x0fff)
+      local rn, rd = band(rshift(op, 5), 31), band(op, 31)
+      if altname == "mov" and shf == 0 and imm12 == 0 and (rn == 31 or rd == 31) then
+	name = altname
+	x = nil
+      elseif shf == 0 then
+	x = imm12
+      elseif shf == 1 then
+	x = imm12..", lsl #12"
+      end
+    elseif p == "i" then
+      x = "#0x"..decode_imm13(op)
+    elseif p == "1" then
+      immr = band(rshift(op, 16), 63)
+      x = immr
+    elseif p == "2" then
+      x = band(rshift(op, 10), 63)
+      if altname then
+	local a1, a2, a3, a4, a5, a6 =
+	  match(altname, "([^|]*)|([^|]*)|([^|]*)|([^|]*)|([^|]*)|(.*)")
+	local sf = band(rshift(op, 26), 32)
+	local uns = band(rshift(op, 30), 1)
+	if prefer_bfx(sf, uns, x, immr) then
+	  name = a2
+	  x = x - immr + 1
+	elseif immr == 0 and x == 7 then
+	  local n = #operands
+	  operands[n] = nil
+	  if sf ~= 0 then
+	    operands[n-1] = gsub(operands[n-1], "x", "w")
+	  end
+	  last = operands[n-1]
+	  name = a6
+	  x = nil
+	elseif immr == 0 and x == 15 then
+	  local n = #operands
+	  operands[n] = nil
+	  if sf ~= 0 then
+	    operands[n-1] = gsub(operands[n-1], "x", "w")
+	  end
+	  last = operands[n-1]
+	  name = a5
+	  x = nil
+	elseif x == 31 or x == 63 then
+	  if x == 31 and immr == 0 and name == "sbfm" then
+	    name = a4
+	    local n = #operands
+	    operands[n] = nil
+	    if sf ~= 0 then
+	      operands[n-1] = gsub(operands[n-1], "x", "w")
+	    end
+	    last = operands[n-1]
+	  else
+	    name = a3
+	  end
+	  x = nil
+	elseif band(x, 31) ~= 31 and immr == x+1 and name == "ubfm" then
+	  name = a4
+	  last = "#"..(sf+32 - immr)
+	  operands[#operands] = last
+	  x = nil
+	elseif x < immr then
+	  name = a1
+	  last = "#"..(sf+32 - immr)
+	  operands[#operands] = last
+	  x = x + 1
+	end
+      end
+    elseif p == "3" then
+      x = band(rshift(op, 10), 63)
+      if altname then
+	local a1, a2 = match(altname, "([^|]*)|(.*)")
+	if x < immr then
+	  name = a1
+	  local sf = band(rshift(op, 26), 32)
+	  last = "#"..(sf+32 - immr)
+	  operands[#operands] = last
+	  x = x + 1
+	else
+	  name = a2
+	  x = x - immr + 1
+	end
+      end
+    elseif p == "4" then
+      x = band(rshift(op, 10), 63)
+      local rn = band(rshift(op, 5), 31)
+      local rm = band(rshift(op, 16), 31)
+      if altname and rn == rm then
+	local n = #operands
+	operands[n] = nil
+	last = operands[n-1]
+	name = altname
+      end
+    elseif p == "5" then
+      x = band(rshift(op, 16), 31)
+    elseif p == "S" then
+      x = band(rshift(op, 10), 63)
+      if x == 0 then x = nil
+      else x = map_shift[band(rshift(op, 22), 3)].." #"..x end
+    elseif p == "X" then
+      local opt = band(rshift(op, 13), 7)
+      -- Width specifier <R>.
+      if opt ~= 3 and opt ~= 7 then
+	last = map_regs.w[band(rshift(op, 16), 31)]
+	operands[#operands] = last
+      end
+      x = band(rshift(op, 10), 7)
+      -- Extension.
+      if opt == 2 + band(rshift(op, 31), 1) and
+	 band(rshift(op, second0 and 5 or 0), 31) == 31 then
+	if x == 0 then x = nil
+	else x = "lsl #"..x end
+      else
+	if x == 0 then x = map_extend[band(rshift(op, 13), 7)]
+	else x = map_extend[band(rshift(op, 13), 7)].." #"..x end
+      end
+    elseif p == "R" then
+      x = band(rshift(op,21), 3)
+      if x == 0 then x = nil
+      else x = "lsl #"..x*16 end
+    elseif p == "z" then
+      local n = #operands
+      if operands[n] == "sp" then operands[n] = "xzr"
+      elseif operands[n] == "wsp" then operands[n] = "wzr"
+      end
+    elseif p == "Z" then
+      x = 0
+    elseif p == "F" then
+      x = parse_fpimm8(op)
+    elseif p == "g" or p == "f" or p == "x" or p == "w" or
+	   p == "d" or p == "s" then
+      -- These are handled in D/N/M/A.
+    elseif p == "0" then
+      if last == "sp" or last == "wsp" then
+	local n = #operands
+	operands[n] = nil
+	last = operands[n-1]
+	if altname then
+	  local a1, a2 = match(altname, "([^|]*)|(.*)")
+	  if not a1 then
+	    name = altname
+	  elseif second0 then
+	    name, altname = a2, a1
+	  else
+	    name, altname = a1, a2
+	  end
+	end
+      end
+      second0 = true
+    else
+      assert(false)
+    end
+    if x then
+      last = x
+      if type(x) == "number" then x = "#"..x end
+      operands[#operands+1] = x
+    end
+  end
+
+  return putop(ctx, name..suffix, operands)
+end
+
+------------------------------------------------------------------------------
+
+-- Disassemble a block of code.
+local function disass_block(ctx, ofs, len)
+  if not ofs then ofs = 0 end
+  local stop = len and ofs+len or #ctx.code
+  ctx.pos = ofs
+  ctx.rel = nil
+  while ctx.pos < stop do disass_ins(ctx) end
+end
+
+-- Extended API: create a disassembler context. Then call ctx:disass(ofs, len).
+local function create(code, addr, out)
+  local ctx = {}
+  ctx.code = code
+  ctx.addr = addr or 0
+  ctx.out = out or io.write
+  ctx.symtab = {}
+  ctx.disass = disass_block
+  ctx.hexdump = 8
+  return ctx
+end
+
+-- Simple API: disassemble code (a string) at address and output via out.
+local function disass(code, addr, out)
+  create(code, addr, out):disass()
+end
+
+-- Return register name for RID.
+local function regname(r)
+  if r < 32 then return map_regs.x[r] end
+  return map_regs.d[r-32]
+end
+
+-- Public module functions.
+return {
+  create = create,
+  disass = disass,
+  regname = regname
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/dis_arm64be.lua b/libs/luajit-cmake/luajit/src/jit/dis_arm64be.lua
new file mode 100644
index 0000000..7337f5b
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/dis_arm64be.lua
@@ -0,0 +1,12 @@
+----------------------------------------------------------------------------
+-- LuaJIT ARM64BE disassembler wrapper module.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- ARM64 instructions are always little-endian. So just forward to the
+-- common ARM64 disassembler module. All the interesting stuff is there.
+------------------------------------------------------------------------------
+
+return require((string.match(..., ".*%.") or "").."dis_arm64")
+
diff --git a/libs/luajit-cmake/luajit/src/jit/dis_mips.lua b/libs/luajit-cmake/luajit/src/jit/dis_mips.lua
new file mode 100644
index 0000000..05dc30f
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/dis_mips.lua
@@ -0,0 +1,694 @@
+----------------------------------------------------------------------------
+-- LuaJIT MIPS disassembler module.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT/X license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This is a helper module used by the LuaJIT machine code dumper module.
+--
+-- It disassembles all standard MIPS32R1/R2 instructions.
+-- Default mode is big-endian, but see: dis_mipsel.lua
+------------------------------------------------------------------------------
+
+local type = type
+local byte, format = string.byte, string.format
+local match, gmatch = string.match, string.gmatch
+local concat = table.concat
+local bit = require("bit")
+local band, bor, tohex = bit.band, bit.bor, bit.tohex
+local lshift, rshift, arshift = bit.lshift, bit.rshift, bit.arshift
+
+------------------------------------------------------------------------------
+-- Extended opcode maps common to all MIPS releases
+------------------------------------------------------------------------------
+
+local map_srl = { shift = 21, mask = 1, [0] = "srlDTA", "rotrDTA", }
+local map_srlv = { shift = 6, mask = 1, [0] = "srlvDTS", "rotrvDTS", }
+
+local map_cop0 = {
+  shift = 25, mask = 1,
+  [0] = {
+    shift = 21, mask = 15,
+    [0] = "mfc0TDW", [4] = "mtc0TDW",
+    [10] = "rdpgprDT",
+    [11] = { shift = 5, mask = 1, [0] = "diT0", "eiT0", },
+    [14] = "wrpgprDT",
+  }, {
+    shift = 0, mask = 63,
+    [1] = "tlbr", [2] = "tlbwi", [6] = "tlbwr", [8] = "tlbp",
+    [24] = "eret", [31] = "deret",
+    [32] = "wait",
+  },
+}
+
+------------------------------------------------------------------------------
+-- Primary and extended opcode maps for MIPS R1-R5
+------------------------------------------------------------------------------
+
+local map_movci = { shift = 16, mask = 1, [0] = "movfDSC", "movtDSC", }
+
+local map_special = {
+  shift = 0, mask = 63,
+  [0] = { shift = 0, mask = -1, [0] = "nop", _ = "sllDTA" },
+  map_movci,	map_srl,	"sraDTA",
+  "sllvDTS",	false,		map_srlv,	"sravDTS",
+  "jrS",	"jalrD1S",	"movzDST",	"movnDST",
+  "syscallY",	"breakY",	false,		"sync",
+  "mfhiD",	"mthiS",	"mfloD",	"mtloS",
+  "dsllvDST",	false,		"dsrlvDST",	"dsravDST",
+  "multST",	"multuST",	"divST",	"divuST",
+  "dmultST",	"dmultuST",	"ddivST",	"ddivuST",
+  "addDST",	"addu|moveDST0", "subDST",	"subu|neguDS0T",
+  "andDST",	"or|moveDST0",	"xorDST",	"nor|notDST0",
+  false,	false,		"sltDST",	"sltuDST",
+  "daddDST",	"dadduDST",	"dsubDST",	"dsubuDST",
+  "tgeSTZ",	"tgeuSTZ",	"tltSTZ",	"tltuSTZ",
+  "teqSTZ",	false,		"tneSTZ",	false,
+  "dsllDTA",	false,		"dsrlDTA",	"dsraDTA",
+  "dsll32DTA",	false,		"dsrl32DTA",	"dsra32DTA",
+}
+
+local map_special2 = {
+  shift = 0, mask = 63,
+  [0] = "maddST", "madduST",	"mulDST",	false,
+  "msubST",	"msubuST",
+  [32] = "clzDS", [33] = "cloDS",
+  [63] = "sdbbpY",
+}
+
+local map_bshfl = {
+  shift = 6, mask = 31,
+  [2] = "wsbhDT",
+  [16] = "sebDT",
+  [24] = "sehDT",
+}
+
+local map_dbshfl = {
+  shift = 6, mask = 31,
+  [2] = "dsbhDT",
+  [5] = "dshdDT",
+}
+
+local map_special3 = {
+  shift = 0, mask = 63,
+  [0]  = "extTSAK", [1]  = "dextmTSAP", [3]  = "dextTSAK",
+  [4]  = "insTSAL", [6]  = "dinsuTSEQ", [7]  = "dinsTSAL",
+  [32] = map_bshfl, [36] = map_dbshfl,  [59] = "rdhwrTD",
+}
+
+local map_regimm = {
+  shift = 16, mask = 31,
+  [0] = "bltzSB",	"bgezSB",	"bltzlSB",	"bgezlSB",
+  false,	false,		false,		false,
+  "tgeiSI",	"tgeiuSI",	"tltiSI",	"tltiuSI",
+  "teqiSI",	false,		"tneiSI",	false,
+  "bltzalSB",	"bgezalSB",	"bltzallSB",	"bgezallSB",
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  false,	false,		false,		"synciSO",
+}
+
+local map_cop1s = {
+  shift = 0, mask = 63,
+  [0] = "add.sFGH",	"sub.sFGH",	"mul.sFGH",	"div.sFGH",
+  "sqrt.sFG",		"abs.sFG",	"mov.sFG",	"neg.sFG",
+  "round.l.sFG",	"trunc.l.sFG",	"ceil.l.sFG",	"floor.l.sFG",
+  "round.w.sFG",	"trunc.w.sFG",	"ceil.w.sFG",	"floor.w.sFG",
+  false,
+  { shift = 16, mask = 1, [0] = "movf.sFGC", "movt.sFGC" },
+  "movz.sFGT",	"movn.sFGT",
+  false,	"recip.sFG",	"rsqrt.sFG",	false,
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  false,	"cvt.d.sFG",	false,		false,
+  "cvt.w.sFG",	"cvt.l.sFG",	"cvt.ps.sFGH",	false,
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  "c.f.sVGH",	"c.un.sVGH",	"c.eq.sVGH",	"c.ueq.sVGH",
+  "c.olt.sVGH",	"c.ult.sVGH",	"c.ole.sVGH",	"c.ule.sVGH",
+  "c.sf.sVGH",	"c.ngle.sVGH",	"c.seq.sVGH",	"c.ngl.sVGH",
+  "c.lt.sVGH",	"c.nge.sVGH",	"c.le.sVGH",	"c.ngt.sVGH",
+}
+
+local map_cop1d = {
+  shift = 0, mask = 63,
+  [0] = "add.dFGH",	"sub.dFGH",	"mul.dFGH",	"div.dFGH",
+  "sqrt.dFG",		"abs.dFG",	"mov.dFG",	"neg.dFG",
+  "round.l.dFG",	"trunc.l.dFG",	"ceil.l.dFG",	"floor.l.dFG",
+  "round.w.dFG",	"trunc.w.dFG",	"ceil.w.dFG",	"floor.w.dFG",
+  false,
+  { shift = 16, mask = 1, [0] = "movf.dFGC", "movt.dFGC" },
+  "movz.dFGT",	"movn.dFGT",
+  false,	"recip.dFG",	"rsqrt.dFG",	false,
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  "cvt.s.dFG",	false,		false,		false,
+  "cvt.w.dFG",	"cvt.l.dFG",	false,		false,
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  "c.f.dVGH",	"c.un.dVGH",	"c.eq.dVGH",	"c.ueq.dVGH",
+  "c.olt.dVGH",	"c.ult.dVGH",	"c.ole.dVGH",	"c.ule.dVGH",
+  "c.df.dVGH",	"c.ngle.dVGH",	"c.deq.dVGH",	"c.ngl.dVGH",
+  "c.lt.dVGH",	"c.nge.dVGH",	"c.le.dVGH",	"c.ngt.dVGH",
+}
+
+local map_cop1ps = {
+  shift = 0, mask = 63,
+  [0] = "add.psFGH",	"sub.psFGH",	"mul.psFGH",	false,
+  false,		"abs.psFG",	"mov.psFG",	"neg.psFG",
+  false,		false,		false,		false,
+  false,		false,		false,		false,
+  false,
+  { shift = 16, mask = 1, [0] = "movf.psFGC", "movt.psFGC" },
+  "movz.psFGT",	"movn.psFGT",
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  "cvt.s.puFG",	false,		false,		false,
+  false,	false,		false,		false,
+  "cvt.s.plFG",	false,		false,		false,
+  "pll.psFGH",	"plu.psFGH",	"pul.psFGH",	"puu.psFGH",
+  "c.f.psVGH",	"c.un.psVGH",	"c.eq.psVGH",	"c.ueq.psVGH",
+  "c.olt.psVGH", "c.ult.psVGH",	"c.ole.psVGH",	"c.ule.psVGH",
+  "c.psf.psVGH", "c.ngle.psVGH", "c.pseq.psVGH", "c.ngl.psVGH",
+  "c.lt.psVGH",	"c.nge.psVGH",	"c.le.psVGH",	"c.ngt.psVGH",
+}
+
+local map_cop1w = {
+  shift = 0, mask = 63,
+  [32] = "cvt.s.wFG", [33] = "cvt.d.wFG",
+}
+
+local map_cop1l = {
+  shift = 0, mask = 63,
+  [32] = "cvt.s.lFG", [33] = "cvt.d.lFG",
+}
+
+local map_cop1bc = {
+  shift = 16, mask = 3,
+  [0] = "bc1fCB", "bc1tCB",	"bc1flCB",	"bc1tlCB",
+}
+
+local map_cop1 = {
+  shift = 21, mask = 31,
+  [0] = "mfc1TG", "dmfc1TG",	"cfc1TG",	"mfhc1TG",
+  "mtc1TG",	"dmtc1TG",	"ctc1TG",	"mthc1TG",
+  map_cop1bc,	false,		false,		false,
+  false,	false,		false,		false,
+  map_cop1s,	map_cop1d,	false,		false,
+  map_cop1w,	map_cop1l,	map_cop1ps,
+}
+
+local map_cop1x = {
+  shift = 0, mask = 63,
+  [0] = "lwxc1FSX",	"ldxc1FSX",	false,		false,
+  false,	"luxc1FSX",	false,		false,
+  "swxc1FSX",	"sdxc1FSX",	false,		false,
+  false,	"suxc1FSX",	false,		"prefxMSX",
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  false,	false,		false,		false,
+  false,	false,		"alnv.psFGHS",	false,
+  "madd.sFRGH",	"madd.dFRGH",	false,		false,
+  false,	false,		"madd.psFRGH",	false,
+  "msub.sFRGH",	"msub.dFRGH",	false,		false,
+  false,	false,		"msub.psFRGH",	false,
+  "nmadd.sFRGH", "nmadd.dFRGH",	false,		false,
+  false,	false,		"nmadd.psFRGH",	false,
+  "nmsub.sFRGH", "nmsub.dFRGH",	false,		false,
+  false,	false,		"nmsub.psFRGH",	false,
+}
+
+local map_pri = {
+  [0] = map_special,	map_regimm,	"jJ",	"jalJ",
+  "beq|beqz|bST00B",	"bne|bnezST0B",		"blezSB",	"bgtzSB",
+  "addiTSI",	"addiu|liTS0I",	"sltiTSI",	"sltiuTSI",
+  "andiTSU",	"ori|liTS0U",	"xoriTSU",	"luiTU",
+  map_cop0,	map_cop1,	false,		map_cop1x,
+  "beql|beqzlST0B",	"bnel|bnezlST0B",	"blezlSB",	"bgtzlSB",
+  "daddiTSI",	"daddiuTSI",	false,		false,
+  map_special2,	"jalxJ",	false,		map_special3,
+  "lbTSO",	"lhTSO",	"lwlTSO",	"lwTSO",
+  "lbuTSO",	"lhuTSO",	"lwrTSO",	false,
+  "sbTSO",	"shTSO",	"swlTSO",	"swTSO",
+  false,	false,		"swrTSO",	"cacheNSO",
+  "llTSO",	"lwc1HSO",	"lwc2TSO",	"prefNSO",
+  false,	"ldc1HSO",	"ldc2TSO",	"ldTSO",
+  "scTSO",	"swc1HSO",	"swc2TSO",	false,
+  false,	"sdc1HSO",	"sdc2TSO",	"sdTSO",
+}
+
+------------------------------------------------------------------------------
+-- Primary and extended opcode maps for MIPS R6
+------------------------------------------------------------------------------
+
+local map_mul_r6 =   { shift = 6, mask = 3, [2] = "mulDST",   [3] = "muhDST" }
+local map_mulu_r6 =  { shift = 6, mask = 3, [2] = "muluDST",  [3] = "muhuDST" }
+local map_div_r6 =   { shift = 6, mask = 3, [2] = "divDST",   [3] = "modDST" }
+local map_divu_r6 =  { shift = 6, mask = 3, [2] = "divuDST",  [3] = "moduDST" }
+local map_dmul_r6 =  { shift = 6, mask = 3, [2] = "dmulDST",  [3] = "dmuhDST" }
+local map_dmulu_r6 = { shift = 6, mask = 3, [2] = "dmuluDST", [3] = "dmuhuDST" }
+local map_ddiv_r6 =  { shift = 6, mask = 3, [2] = "ddivDST",  [3] = "dmodDST" }
+local map_ddivu_r6 = { shift = 6, mask = 3, [2] = "ddivuDST", [3] = "dmoduDST" }
+
+local map_special_r6 = {
+  shift = 0, mask = 63,
+  [0] = { shift = 0, mask = -1, [0] = "nop", _ = "sllDTA" },
+  false,	map_srl,	"sraDTA",
+  "sllvDTS",	false,		map_srlv,	"sravDTS",
+  "jrS",	"jalrD1S",	false,		false,
+  "syscallY",	"breakY",	false,		"sync",
+  "clzDS",	"cloDS",	"dclzDS",	"dcloDS",
+  "dsllvDST",	"dlsaDSTA",	"dsrlvDST",	"dsravDST",
+  map_mul_r6,	map_mulu_r6,	map_div_r6,	map_divu_r6,
+  map_dmul_r6,	map_dmulu_r6,	map_ddiv_r6,	map_ddivu_r6,
+  "addDST",	"addu|moveDST0", "subDST",	"subu|neguDS0T",
+  "andDST",	"or|moveDST0",	"xorDST",	"nor|notDST0",
+  false,	false,		"sltDST",	"sltuDST",
+  "daddDST",	"dadduDST",	"dsubDST",	"dsubuDST",
+  "tgeSTZ",	"tgeuSTZ",	"tltSTZ",	"tltuSTZ",
+  "teqSTZ",	"seleqzDST",	"tneSTZ",	"selnezDST",
+  "dsllDTA",	false,		"dsrlDTA",	"dsraDTA",
+  "dsll32DTA",	false,		"dsrl32DTA",	"dsra32DTA",
+}
+
+local map_bshfl_r6 = {
+  shift = 9, mask = 3,
+  [1] = "alignDSTa",
+  _ = {
+    shift = 6, mask = 31,
+    [0] = "bitswapDT",
+    [2] = "wsbhDT",
+    [16] = "sebDT",
+    [24] = "sehDT",
+  }
+}
+
+local map_dbshfl_r6 = {
+  shift = 9, mask = 3,
+  [1] = "dalignDSTa",
+  _ = {
+    shift = 6, mask = 31,
+    [0] = "dbitswapDT",
+    [2] = "dsbhDT",
+    [5] = "dshdDT",
+  }
+}
+
+local map_special3_r6 = {
+  shift = 0, mask = 63,
+  [0]  = "extTSAK", [1]  = "dextmTSAP", [3]  = "dextTSAK",
+  [4]  = "insTSAL", [6]  = "dinsuTSEQ", [7]  = "dinsTSAL",
+  [32] = map_bshfl_r6, [36] = map_dbshfl_r6,  [59] = "rdhwrTD",
+}
+
+local map_regimm_r6 = {
+  shift = 16, mask = 31,
+  [0] = "bltzSB", [1] = "bgezSB",
+  [6] = "dahiSI", [30] = "datiSI",
+  [23] = "sigrieI", [31] = "synciSO",
+}
+
+local map_pcrel_r6 = {
+  shift = 19, mask = 3,
+  [0] = "addiupcS2", "lwpcS2", "lwupcS2", {
+    shift = 18, mask = 1,
+    [0] = "ldpcS3", { shift = 16, mask = 3, [2] = "auipcSI", [3] = "aluipcSI" }
+  }
+}
+
+local map_cop1s_r6 = {
+  shift = 0, mask = 63,
+  [0] = "add.sFGH",	"sub.sFGH",	"mul.sFGH",	"div.sFGH",
+  "sqrt.sFG",		"abs.sFG",	"mov.sFG",	"neg.sFG",
+  "round.l.sFG",	"trunc.l.sFG",	"ceil.l.sFG",	"floor.l.sFG",
+  "round.w.sFG",	"trunc.w.sFG",	"ceil.w.sFG",	"floor.w.sFG",
+  "sel.sFGH",		false,		false,		false,
+  "seleqz.sFGH",	"recip.sFG",	"rsqrt.sFG",	"selnez.sFGH",
+  "maddf.sFGH",		"msubf.sFGH",	"rint.sFG",	"class.sFG",
+  "min.sFGH",		"mina.sFGH",	"max.sFGH",	"maxa.sFGH",
+  false,		"cvt.d.sFG",	false,		false,
+  "cvt.w.sFG",		"cvt.l.sFG",
+}
+
+local map_cop1d_r6 = {
+  shift = 0, mask = 63,
+  [0] = "add.dFGH",	"sub.dFGH",	"mul.dFGH",	"div.dFGH",
+  "sqrt.dFG",		"abs.dFG",	"mov.dFG",	"neg.dFG",
+  "round.l.dFG",	"trunc.l.dFG",	"ceil.l.dFG",	"floor.l.dFG",
+  "round.w.dFG",	"trunc.w.dFG",	"ceil.w.dFG",	"floor.w.dFG",
+  "sel.dFGH",		false,		false,		false,
+  "seleqz.dFGH",	"recip.dFG",	"rsqrt.dFG",	"selnez.dFGH",
+  "maddf.dFGH",		"msubf.dFGH",	"rint.dFG",	"class.dFG",
+  "min.dFGH",		"mina.dFGH",	"max.dFGH",	"maxa.dFGH",
+  "cvt.s.dFG",		false,		false,		false,
+  "cvt.w.dFG",		"cvt.l.dFG",
+}
+
+local map_cop1w_r6 = {
+  shift = 0, mask = 63,
+  [0] = "cmp.af.sFGH",	"cmp.un.sFGH",	"cmp.eq.sFGH",	"cmp.ueq.sFGH",
+  "cmp.lt.sFGH",	"cmp.ult.sFGH",	"cmp.le.sFGH",	"cmp.ule.sFGH",
+  "cmp.saf.sFGH",	"cmp.sun.sFGH",	"cmp.seq.sFGH",	"cmp.sueq.sFGH",
+  "cmp.slt.sFGH",	"cmp.sult.sFGH",	"cmp.sle.sFGH",	"cmp.sule.sFGH",
+  false,		"cmp.or.sFGH",	"cmp.une.sFGH",	"cmp.ne.sFGH",
+  false,		false,		false,		false,
+  false,		"cmp.sor.sFGH",	"cmp.sune.sFGH",	"cmp.sne.sFGH",
+  false,		false,		false,		false,
+  "cvt.s.wFG", "cvt.d.wFG",
+}
+
+local map_cop1l_r6 = {
+  shift = 0, mask = 63,
+  [0] = "cmp.af.dFGH",	"cmp.un.dFGH",	"cmp.eq.dFGH",	"cmp.ueq.dFGH",
+  "cmp.lt.dFGH",	"cmp.ult.dFGH",	"cmp.le.dFGH",	"cmp.ule.dFGH",
+  "cmp.saf.dFGH",	"cmp.sun.dFGH",	"cmp.seq.dFGH",	"cmp.sueq.dFGH",
+  "cmp.slt.dFGH",	"cmp.sult.dFGH",	"cmp.sle.dFGH",	"cmp.sule.dFGH",
+  false,		"cmp.or.dFGH",	"cmp.une.dFGH",	"cmp.ne.dFGH",
+  false,		false,		false,		false,
+  false,		"cmp.sor.dFGH",	"cmp.sune.dFGH",	"cmp.sne.dFGH",
+  false,		false,		false,		false,
+  "cvt.s.lFG", "cvt.d.lFG",
+}
+
+local map_cop1_r6 = {
+  shift = 21, mask = 31,
+  [0] = "mfc1TG", "dmfc1TG",	"cfc1TG",	"mfhc1TG",
+  "mtc1TG",	"dmtc1TG",	"ctc1TG",	"mthc1TG",
+  false,	"bc1eqzHB",	false,		false,
+  false,	"bc1nezHB",	false,		false,
+  map_cop1s_r6,	map_cop1d_r6,	false,		false,
+  map_cop1w_r6,	map_cop1l_r6,
+}
+
+local function maprs_popTS(rs, rt)
+  if rt == 0 then return 0 elseif rs == 0 then return 1
+  elseif rs == rt then return 2 else return 3 end
+end
+
+local map_pop06_r6 = {
+  maprs = maprs_popTS, [0] = "blezSB", "blezalcTB", "bgezalcTB", "bgeucSTB"
+}
+local map_pop07_r6 = {
+  maprs = maprs_popTS, [0] = "bgtzSB", "bgtzalcTB", "bltzalcTB", "bltucSTB"
+}
+local map_pop26_r6 = {
+  maprs = maprs_popTS, "blezcTB", "bgezcTB", "bgecSTB"
+}
+local map_pop27_r6 = {
+  maprs = maprs_popTS, "bgtzcTB", "bltzcTB", "bltcSTB"
+}
+
+local function maprs_popS(rs, rt)
+  if rs == 0 then return 0 else return 1 end
+end
+
+local map_pop66_r6 = {
+  maprs = maprs_popS, [0] = "jicTI", "beqzcSb"
+}
+local map_pop76_r6 = {
+  maprs = maprs_popS, [0] = "jialcTI", "bnezcSb"
+}
+
+local function maprs_popST(rs, rt)
+  if rs >= rt then return 0 elseif rs == 0 then return 1 else return 2 end
+end
+
+local map_pop10_r6 = {
+  maprs = maprs_popST, [0] = "bovcSTB", "beqzalcTB", "beqcSTB"
+}
+local map_pop30_r6 = {
+  maprs = maprs_popST, [0] = "bnvcSTB", "bnezalcTB", "bnecSTB"
+}
+
+local map_pri_r6 = {
+  [0] = map_special_r6,	map_regimm_r6,	"jJ",	"jalJ",
+  "beq|beqz|bST00B",	"bne|bnezST0B",		map_pop06_r6,	map_pop07_r6,
+  map_pop10_r6,	"addiu|liTS0I",	"sltiTSI",	"sltiuTSI",
+  "andiTSU",	"ori|liTS0U",	"xoriTSU",	"aui|luiTS0U",
+  map_cop0,	map_cop1_r6,	false,		false,
+  false,	false,		map_pop26_r6,	map_pop27_r6,
+  map_pop30_r6,	"daddiuTSI",	false,		false,
+  false,	"dauiTSI",	false,		map_special3_r6,
+  "lbTSO",	"lhTSO",	false,		"lwTSO",
+  "lbuTSO",	"lhuTSO",	false,		false,
+  "sbTSO",	"shTSO",	false,		"swTSO",
+  false,	false,		false,		false,
+  false,	"lwc1HSO",	"bc#",		false,
+  false,	"ldc1HSO",	map_pop66_r6,	"ldTSO",
+  false,	"swc1HSO",	"balc#",	map_pcrel_r6,
+  false,	"sdc1HSO",	map_pop76_r6,	"sdTSO",
+}
+
+------------------------------------------------------------------------------
+
+local map_gpr = {
+  [0] = "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+  "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
+  "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
+  "r24", "r25", "r26", "r27", "r28", "sp", "r30", "ra",
+}
+
+------------------------------------------------------------------------------
+
+-- Output a nicely formatted line with an opcode and operands.
+local function putop(ctx, text, operands)
+  local pos = ctx.pos
+  local extra = ""
+  if ctx.rel then
+    local sym = ctx.symtab[ctx.rel]
+    if sym then extra = "\t->"..sym end
+  end
+  if ctx.hexdump > 0 then
+    ctx.out(format("%08x  %s  %-7s %s%s\n",
+	    ctx.addr+pos, tohex(ctx.op), text, concat(operands, ", "), extra))
+  else
+    ctx.out(format("%08x  %-7s %s%s\n",
+	    ctx.addr+pos, text, concat(operands, ", "), extra))
+  end
+  ctx.pos = pos + 4
+end
+
+-- Fallback for unknown opcodes.
+local function unknown(ctx)
+  return putop(ctx, ".long", { "0x"..tohex(ctx.op) })
+end
+
+local function get_be(ctx)
+  local pos = ctx.pos
+  local b0, b1, b2, b3 = byte(ctx.code, pos+1, pos+4)
+  return bor(lshift(b0, 24), lshift(b1, 16), lshift(b2, 8), b3)
+end
+
+local function get_le(ctx)
+  local pos = ctx.pos
+  local b0, b1, b2, b3 = byte(ctx.code, pos+1, pos+4)
+  return bor(lshift(b3, 24), lshift(b2, 16), lshift(b1, 8), b0)
+end
+
+-- Disassemble a single instruction.
+local function disass_ins(ctx)
+  local op = ctx:get()
+  local operands = {}
+  local last = nil
+  ctx.op = op
+  ctx.rel = nil
+
+  local opat = ctx.map_pri[rshift(op, 26)]
+  while type(opat) ~= "string" do
+    if not opat then return unknown(ctx) end
+    if opat.maprs then
+      opat = opat[opat.maprs(band(rshift(op,21),31), band(rshift(op,16),31))]
+    else
+      opat = opat[band(rshift(op, opat.shift), opat.mask)] or opat._
+    end
+  end
+  local name, pat = match(opat, "^([a-z0-9_.]*)(.*)")
+  local altname, pat2 = match(pat, "|([a-z0-9_.|]*)(.*)")
+  if altname then pat = pat2 end
+
+  for p in gmatch(pat, ".") do
+    local x = nil
+    if p == "S" then
+      x = map_gpr[band(rshift(op, 21), 31)]
+    elseif p == "T" then
+      x = map_gpr[band(rshift(op, 16), 31)]
+    elseif p == "D" then
+      x = map_gpr[band(rshift(op, 11), 31)]
+    elseif p == "F" then
+      x = "f"..band(rshift(op, 6), 31)
+    elseif p == "G" then
+      x = "f"..band(rshift(op, 11), 31)
+    elseif p == "H" then
+      x = "f"..band(rshift(op, 16), 31)
+    elseif p == "R" then
+      x = "f"..band(rshift(op, 21), 31)
+    elseif p == "A" then
+      x = band(rshift(op, 6), 31)
+    elseif p == "a" then
+      x = band(rshift(op, 6), 7)
+    elseif p == "E" then
+      x = band(rshift(op, 6), 31) + 32
+    elseif p == "M" then
+      x = band(rshift(op, 11), 31)
+    elseif p == "N" then
+      x = band(rshift(op, 16), 31)
+    elseif p == "C" then
+      x = band(rshift(op, 18), 7)
+      if x == 0 then x = nil end
+    elseif p == "K" then
+      x = band(rshift(op, 11), 31) + 1
+    elseif p == "P" then
+      x = band(rshift(op, 11), 31) + 33
+    elseif p == "L" then
+      x = band(rshift(op, 11), 31) - last + 1
+    elseif p == "Q" then
+      x = band(rshift(op, 11), 31) - last + 33
+    elseif p == "I" then
+      x = arshift(lshift(op, 16), 16)
+    elseif p == "2" then
+      x = arshift(lshift(op, 13), 11)
+    elseif p == "3" then
+      x = arshift(lshift(op, 14), 11)
+    elseif p == "U" then
+      x = band(op, 0xffff)
+    elseif p == "O" then
+      local disp = arshift(lshift(op, 16), 16)
+      operands[#operands] = format("%d(%s)", disp, last)
+    elseif p == "X" then
+      local index = map_gpr[band(rshift(op, 16), 31)]
+      operands[#operands] = format("%s(%s)", index, last)
+    elseif p == "B" then
+      x = ctx.addr + ctx.pos + arshift(lshift(op, 16), 14) + 4
+      ctx.rel = x
+      x = format("0x%08x", x)
+    elseif p == "b" then
+      x = ctx.addr + ctx.pos + arshift(lshift(op, 11), 9) + 4
+      ctx.rel = x
+      x = format("0x%08x", x)
+    elseif p == "#" then
+      x = ctx.addr + ctx.pos + arshift(lshift(op, 6), 4) + 4
+      ctx.rel = x
+      x = format("0x%08x", x)
+    elseif p == "J" then
+      local a = ctx.addr + ctx.pos
+      x = a - band(a, 0x0fffffff) + band(op, 0x03ffffff)*4
+      ctx.rel = x
+      x = format("0x%08x", x)
+    elseif p == "V" then
+      x = band(rshift(op, 8), 7)
+      if x == 0 then x = nil end
+    elseif p == "W" then
+      x = band(op, 7)
+      if x == 0 then x = nil end
+    elseif p == "Y" then
+      x = band(rshift(op, 6), 0x000fffff)
+      if x == 0 then x = nil end
+    elseif p == "Z" then
+      x = band(rshift(op, 6), 1023)
+      if x == 0 then x = nil end
+    elseif p == "0" then
+      if last == "r0" or last == 0 then
+	local n = #operands
+	operands[n] = nil
+	last = operands[n-1]
+	if altname then
+	  local a1, a2 = match(altname, "([^|]*)|(.*)")
+	  if a1 then name, altname = a1, a2
+	  else name = altname end
+	end
+      end
+    elseif p == "1" then
+      if last == "ra" then
+	operands[#operands] = nil
+      end
+    else
+      assert(false)
+    end
+    if x then operands[#operands+1] = x; last = x end
+  end
+
+  return putop(ctx, name, operands)
+end
+
+------------------------------------------------------------------------------
+
+-- Disassemble a block of code.
+local function disass_block(ctx, ofs, len)
+  if not ofs then ofs = 0 end
+  local stop = len and ofs+len or #ctx.code
+  stop = stop - stop % 4
+  ctx.pos = ofs - ofs % 4
+  ctx.rel = nil
+  while ctx.pos < stop do disass_ins(ctx) end
+end
+
+-- Extended API: create a disassembler context. Then call ctx:disass(ofs, len).
+local function create(code, addr, out)
+  local ctx = {}
+  ctx.code = code
+  ctx.addr = addr or 0
+  ctx.out = out or io.write
+  ctx.symtab = {}
+  ctx.disass = disass_block
+  ctx.hexdump = 8
+  ctx.get = get_be
+  ctx.map_pri = map_pri
+  return ctx
+end
+
+local function create_el(code, addr, out)
+  local ctx = create(code, addr, out)
+  ctx.get = get_le
+  return ctx
+end
+
+local function create_r6(code, addr, out)
+  local ctx = create(code, addr, out)
+  ctx.map_pri = map_pri_r6
+  return ctx
+end
+
+local function create_r6_el(code, addr, out)
+  local ctx = create(code, addr, out)
+  ctx.get = get_le
+  ctx.map_pri = map_pri_r6
+  return ctx
+end
+
+-- Simple API: disassemble code (a string) at address and output via out.
+local function disass(code, addr, out)
+  create(code, addr, out):disass()
+end
+
+local function disass_el(code, addr, out)
+  create_el(code, addr, out):disass()
+end
+
+local function disass_r6(code, addr, out)
+  create_r6(code, addr, out):disass()
+end
+
+local function disass_r6_el(code, addr, out)
+  create_r6_el(code, addr, out):disass()
+end
+
+-- Return register name for RID.
+local function regname(r)
+  if r < 32 then return map_gpr[r] end
+  return "f"..(r-32)
+end
+
+-- Public module functions.
+return {
+  create = create,
+  create_el = create_el,
+  create_r6 = create_r6,
+  create_r6_el = create_r6_el,
+  disass = disass,
+  disass_el = disass_el,
+  disass_r6 = disass_r6,
+  disass_r6_el = disass_r6_el,
+  regname = regname
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/dis_mips64.lua b/libs/luajit-cmake/luajit/src/jit/dis_mips64.lua
new file mode 100644
index 0000000..1236e52
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/dis_mips64.lua
@@ -0,0 +1,17 @@
+----------------------------------------------------------------------------
+-- LuaJIT MIPS64 disassembler wrapper module.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This module just exports the big-endian functions from the
+-- MIPS disassembler module. All the interesting stuff is there.
+------------------------------------------------------------------------------
+
+local dis_mips = require((string.match(..., ".*%.") or "").."dis_mips")
+return {
+  create = dis_mips.create,
+  disass = dis_mips.disass,
+  regname = dis_mips.regname
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/dis_mips64el.lua b/libs/luajit-cmake/luajit/src/jit/dis_mips64el.lua
new file mode 100644
index 0000000..7c478d2
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/dis_mips64el.lua
@@ -0,0 +1,17 @@
+----------------------------------------------------------------------------
+-- LuaJIT MIPS64EL disassembler wrapper module.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This module just exports the little-endian functions from the
+-- MIPS disassembler module. All the interesting stuff is there.
+------------------------------------------------------------------------------
+
+local dis_mips = require((string.match(..., ".*%.") or "").."dis_mips")
+return {
+  create = dis_mips.create_el,
+  disass = dis_mips.disass_el,
+  regname = dis_mips.regname
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/dis_mips64r6.lua b/libs/luajit-cmake/luajit/src/jit/dis_mips64r6.lua
new file mode 100644
index 0000000..c5789ce
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/dis_mips64r6.lua
@@ -0,0 +1,17 @@
+----------------------------------------------------------------------------
+-- LuaJIT MIPS64R6 disassembler wrapper module.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This module just exports the r6 big-endian functions from the
+-- MIPS disassembler module. All the interesting stuff is there.
+------------------------------------------------------------------------------
+
+local dis_mips = require((string.match(..., ".*%.") or "").."dis_mips")
+return {
+  create = dis_mips.create_r6,
+  disass = dis_mips.disass_r6,
+  regname = dis_mips.regname
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/dis_mips64r6el.lua b/libs/luajit-cmake/luajit/src/jit/dis_mips64r6el.lua
new file mode 100644
index 0000000..f67f624
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/dis_mips64r6el.lua
@@ -0,0 +1,17 @@
+----------------------------------------------------------------------------
+-- LuaJIT MIPS64R6EL disassembler wrapper module.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This module just exports the r6 little-endian functions from the
+-- MIPS disassembler module. All the interesting stuff is there.
+------------------------------------------------------------------------------
+
+local dis_mips = require((string.match(..., ".*%.") or "").."dis_mips")
+return {
+  create = dis_mips.create_r6_el,
+  disass = dis_mips.disass_r6_el,
+  regname = dis_mips.regname
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/dis_mipsel.lua b/libs/luajit-cmake/luajit/src/jit/dis_mipsel.lua
new file mode 100644
index 0000000..a4fa6c6
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/dis_mipsel.lua
@@ -0,0 +1,17 @@
+----------------------------------------------------------------------------
+-- LuaJIT MIPSEL disassembler wrapper module.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This module just exports the little-endian functions from the
+-- MIPS disassembler module. All the interesting stuff is there.
+------------------------------------------------------------------------------
+
+local dis_mips = require((string.match(..., ".*%.") or "").."dis_mips")
+return {
+  create = dis_mips.create_el,
+  disass = dis_mips.disass_el,
+  regname = dis_mips.regname
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/dis_ppc.lua b/libs/luajit-cmake/luajit/src/jit/dis_ppc.lua
new file mode 100644
index 0000000..8f65f25
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/dis_ppc.lua
@@ -0,0 +1,591 @@
+----------------------------------------------------------------------------
+-- LuaJIT PPC disassembler module.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT/X license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This is a helper module used by the LuaJIT machine code dumper module.
+--
+-- It disassembles all common, non-privileged 32/64 bit PowerPC instructions
+-- plus the e500 SPE instructions and some Cell/Xenon extensions.
+--
+-- NYI: VMX, VMX128
+------------------------------------------------------------------------------
+
+local type = type
+local byte, format = string.byte, string.format
+local match, gmatch, gsub = string.match, string.gmatch, string.gsub
+local concat = table.concat
+local bit = require("bit")
+local band, bor, tohex = bit.band, bit.bor, bit.tohex
+local lshift, rshift, arshift = bit.lshift, bit.rshift, bit.arshift
+
+------------------------------------------------------------------------------
+-- Primary and extended opcode maps
+------------------------------------------------------------------------------
+
+local map_crops = {
+  shift = 1, mask = 1023,
+  [0] = "mcrfXX",
+  [33] = "crnor|crnotCCC=", [129] = "crandcCCC",
+  [193] = "crxor|crclrCCC%", [225] = "crnandCCC",
+  [257] = "crandCCC", [289] = "creqv|crsetCCC%",
+  [417] = "crorcCCC", [449] = "cror|crmoveCCC=",
+  [16] = "b_lrKB", [528] = "b_ctrKB",
+  [150] = "isync",
+}
+
+local map_rlwinm = setmetatable({
+  shift = 0, mask = -1,
+},
+{ __index = function(t, x)
+    local rot = band(rshift(x, 11), 31)
+    local mb = band(rshift(x, 6), 31)
+    local me = band(rshift(x, 1), 31)
+    if mb == 0 and me == 31-rot then
+      return "slwiRR~A."
+    elseif me == 31 and mb == 32-rot then
+      return "srwiRR~-A."
+    else
+      return "rlwinmRR~AAA."
+    end
+  end
+})
+
+local map_rld = {
+  shift = 2, mask = 7,
+  [0] = "rldiclRR~HM.", "rldicrRR~HM.", "rldicRR~HM.", "rldimiRR~HM.",
+  {
+    shift = 1, mask = 1,
+    [0] = "rldclRR~RM.", "rldcrRR~RM.",
+  },
+}
+
+local map_ext = setmetatable({
+  shift = 1, mask = 1023,
+
+  [0] = "cmp_YLRR", [32] = "cmpl_YLRR",
+  [4] = "twARR", [68] = "tdARR",
+
+  [8] = "subfcRRR.", [40] = "subfRRR.",
+  [104] = "negRR.", [136] = "subfeRRR.",
+  [200] = "subfzeRR.", [232] = "subfmeRR.",
+  [520] = "subfcoRRR.", [552] = "subfoRRR.",
+  [616] = "negoRR.", [648] = "subfeoRRR.",
+  [712] = "subfzeoRR.", [744] = "subfmeoRR.",
+
+  [9] = "mulhduRRR.", [73] = "mulhdRRR.", [233] = "mulldRRR.",
+  [457] = "divduRRR.", [489] = "divdRRR.",
+  [745] = "mulldoRRR.",
+  [969] = "divduoRRR.", [1001] = "divdoRRR.",
+
+  [10] = "addcRRR.", [138] = "addeRRR.",
+  [202] = "addzeRR.", [234] = "addmeRR.", [266] = "addRRR.",
+  [522] = "addcoRRR.", [650] = "addeoRRR.",
+  [714] = "addzeoRR.", [746] = "addmeoRR.", [778] = "addoRRR.",
+
+  [11] = "mulhwuRRR.", [75] = "mulhwRRR.", [235] = "mullwRRR.",
+  [459] = "divwuRRR.", [491] = "divwRRR.",
+  [747] = "mullwoRRR.",
+  [971] = "divwouRRR.", [1003] = "divwoRRR.",
+
+  [15] = "iselltRRR", [47] = "iselgtRRR", [79] = "iseleqRRR",
+
+  [144] = { shift = 20, mask = 1, [0] = "mtcrfRZ~", "mtocrfRZ~", },
+  [19] = { shift = 20, mask = 1, [0] = "mfcrR", "mfocrfRZ", },
+  [371] = { shift = 11, mask = 1023, [392] = "mftbR", [424] = "mftbuR", },
+  [339] = {
+    shift = 11, mask = 1023,
+    [32] = "mferR", [256] = "mflrR", [288] = "mfctrR", [16] = "mfspefscrR",
+  },
+  [467] = {
+    shift = 11, mask = 1023,
+    [32] = "mtxerR", [256] = "mtlrR", [288] = "mtctrR", [16] = "mtspefscrR",
+  },
+
+  [20] = "lwarxRR0R", [84] = "ldarxRR0R",
+
+  [21] = "ldxRR0R", [53] = "lduxRRR",
+  [149] = "stdxRR0R", [181] = "stduxRRR",
+  [341] = "lwaxRR0R", [373] = "lwauxRRR",
+
+  [23] = "lwzxRR0R", [55] = "lwzuxRRR",
+  [87] = "lbzxRR0R", [119] = "lbzuxRRR",
+  [151] = "stwxRR0R", [183] = "stwuxRRR",
+  [215] = "stbxRR0R", [247] = "stbuxRRR",
+  [279] = "lhzxRR0R", [311] = "lhzuxRRR",
+  [343] = "lhaxRR0R", [375] = "lhauxRRR",
+  [407] = "sthxRR0R", [439] = "sthuxRRR",
+
+  [54] = "dcbst-R0R", [86] = "dcbf-R0R",
+  [150] = "stwcxRR0R.", [214] = "stdcxRR0R.",
+  [246] = "dcbtst-R0R", [278] = "dcbt-R0R",
+  [310] = "eciwxRR0R", [438] = "ecowxRR0R",
+  [470] = "dcbi-RR",
+
+  [598] = {
+    shift = 21, mask = 3,
+    [0] = "sync", "lwsync", "ptesync",
+  },
+  [758] = "dcba-RR",
+  [854] = "eieio", [982] = "icbi-R0R", [1014] = "dcbz-R0R",
+
+  [26] = "cntlzwRR~", [58] = "cntlzdRR~",
+  [122] = "popcntbRR~",
+  [154] = "prtywRR~", [186] = "prtydRR~",
+
+  [28] = "andRR~R.", [60] = "andcRR~R.", [124] = "nor|notRR~R=.",
+  [284] = "eqvRR~R.", [316] = "xorRR~R.",
+  [412] = "orcRR~R.", [444] = "or|mrRR~R=.", [476] = "nandRR~R.",
+  [508] = "cmpbRR~R",
+
+  [512] = "mcrxrX",
+
+  [532] = "ldbrxRR0R", [660] = "stdbrxRR0R",
+
+  [533] = "lswxRR0R", [597] = "lswiRR0A",
+  [661] = "stswxRR0R", [725] = "stswiRR0A",
+
+  [534] = "lwbrxRR0R", [662] = "stwbrxRR0R",
+  [790] = "lhbrxRR0R", [918] = "sthbrxRR0R",
+
+  [535] = "lfsxFR0R", [567] = "lfsuxFRR",
+  [599] = "lfdxFR0R", [631] = "lfduxFRR",
+  [663] = "stfsxFR0R", [695] = "stfsuxFRR",
+  [727] = "stfdxFR0R", [759] = "stfduxFR0R",
+  [855] = "lfiwaxFR0R",
+  [983] = "stfiwxFR0R",
+
+  [24] = "slwRR~R.",
+
+  [27] = "sldRR~R.", [536] = "srwRR~R.",
+  [792] = "srawRR~R.", [824] = "srawiRR~A.",
+
+  [794] = "sradRR~R.", [826] = "sradiRR~H.", [827] = "sradiRR~H.",
+  [922] = "extshRR~.", [954] = "extsbRR~.", [986] = "extswRR~.",
+
+  [539] = "srdRR~R.",
+},
+{ __index = function(t, x)
+    if band(x, 31) == 15 then return "iselRRRC" end
+  end
+})
+
+local map_ld = {
+  shift = 0, mask = 3,
+  [0] = "ldRRE", "lduRRE", "lwaRRE",
+}
+
+local map_std = {
+  shift = 0, mask = 3,
+  [0] = "stdRRE", "stduRRE",
+}
+
+local map_fps = {
+  shift = 5, mask = 1,
+  {
+    shift = 1, mask = 15,
+    [0] = false, false, "fdivsFFF.", false,
+    "fsubsFFF.", "faddsFFF.", "fsqrtsF-F.", false,
+    "fresF-F.", "fmulsFF-F.", "frsqrtesF-F.", false,
+    "fmsubsFFFF~.", "fmaddsFFFF~.", "fnmsubsFFFF~.", "fnmaddsFFFF~.",
+  }
+}
+
+local map_fpd = {
+  shift = 5, mask = 1,
+  [0] = {
+    shift = 1, mask = 1023,
+    [0] = "fcmpuXFF", [32] = "fcmpoXFF", [64] = "mcrfsXX",
+    [38] = "mtfsb1A.", [70] = "mtfsb0A.", [134] = "mtfsfiA>>-A>",
+    [8] = "fcpsgnFFF.", [40] = "fnegF-F.", [72] = "fmrF-F.",
+    [136] = "fnabsF-F.", [264] = "fabsF-F.",
+    [12] = "frspF-F.",
+    [14] = "fctiwF-F.", [15] = "fctiwzF-F.",
+    [583] = "mffsF.", [711] = "mtfsfZF.",
+    [392] = "frinF-F.", [424] = "frizF-F.",
+    [456] = "fripF-F.", [488] = "frimF-F.",
+    [814] = "fctidF-F.", [815] = "fctidzF-F.", [846] = "fcfidF-F.",
+  },
+  {
+    shift = 1, mask = 15,
+    [0] = false, false, "fdivFFF.", false,
+    "fsubFFF.", "faddFFF.", "fsqrtF-F.", "fselFFFF~.",
+    "freF-F.", "fmulFF-F.", "frsqrteF-F.", false,
+    "fmsubFFFF~.", "fmaddFFFF~.", "fnmsubFFFF~.", "fnmaddFFFF~.",
+  }
+}
+
+local map_spe = {
+  shift = 0, mask = 2047,
+
+  [512] = "evaddwRRR", [514] = "evaddiwRAR~",
+  [516] = "evsubwRRR~", [518] = "evsubiwRAR~",
+  [520] = "evabsRR", [521] = "evnegRR",
+  [522] = "evextsbRR", [523] = "evextshRR", [524] = "evrndwRR",
+  [525] = "evcntlzwRR", [526] = "evcntlswRR",
+
+  [527] = "brincRRR",
+
+  [529] = "evandRRR", [530] = "evandcRRR", [534] = "evxorRRR",
+  [535] = "evor|evmrRRR=", [536] = "evnor|evnotRRR=",
+  [537] = "eveqvRRR", [539] = "evorcRRR", [542] = "evnandRRR",
+
+  [544] = "evsrwuRRR", [545] = "evsrwsRRR",
+  [546] = "evsrwiuRRA", [547] = "evsrwisRRA",
+  [548] = "evslwRRR", [550] = "evslwiRRA",
+  [552] = "evrlwRRR", [553] = "evsplatiRS",
+  [554] = "evrlwiRRA", [555] = "evsplatfiRS",
+  [556] = "evmergehiRRR", [557] = "evmergeloRRR",
+  [558] = "evmergehiloRRR", [559] = "evmergelohiRRR",
+
+  [560] = "evcmpgtuYRR", [561] = "evcmpgtsYRR",
+  [562] = "evcmpltuYRR", [563] = "evcmpltsYRR",
+  [564] = "evcmpeqYRR",
+
+  [632] = "evselRRR", [633] = "evselRRRW",
+  [634] = "evselRRRW", [635] = "evselRRRW",
+  [636] = "evselRRRW", [637] = "evselRRRW",
+  [638] = "evselRRRW", [639] = "evselRRRW",
+
+  [640] = "evfsaddRRR", [641] = "evfssubRRR",
+  [644] = "evfsabsRR", [645] = "evfsnabsRR", [646] = "evfsnegRR",
+  [648] = "evfsmulRRR", [649] = "evfsdivRRR",
+  [652] = "evfscmpgtYRR", [653] = "evfscmpltYRR", [654] = "evfscmpeqYRR",
+  [656] = "evfscfuiR-R", [657] = "evfscfsiR-R",
+  [658] = "evfscfufR-R", [659] = "evfscfsfR-R",
+  [660] = "evfsctuiR-R", [661] = "evfsctsiR-R",
+  [662] = "evfsctufR-R", [663] = "evfsctsfR-R",
+  [664] = "evfsctuizR-R", [666] = "evfsctsizR-R",
+  [668] = "evfststgtYRR", [669] = "evfststltYRR", [670] = "evfststeqYRR",
+
+  [704] = "efsaddRRR", [705] = "efssubRRR",
+  [708] = "efsabsRR", [709] = "efsnabsRR", [710] = "efsnegRR",
+  [712] = "efsmulRRR", [713] = "efsdivRRR",
+  [716] = "efscmpgtYRR", [717] = "efscmpltYRR", [718] = "efscmpeqYRR",
+  [719] = "efscfdR-R",
+  [720] = "efscfuiR-R", [721] = "efscfsiR-R",
+  [722] = "efscfufR-R", [723] = "efscfsfR-R",
+  [724] = "efsctuiR-R", [725] = "efsctsiR-R",
+  [726] = "efsctufR-R", [727] = "efsctsfR-R",
+  [728] = "efsctuizR-R", [730] = "efsctsizR-R",
+  [732] = "efststgtYRR", [733] = "efststltYRR", [734] = "efststeqYRR",
+
+  [736] = "efdaddRRR", [737] = "efdsubRRR",
+  [738] = "efdcfuidR-R", [739] = "efdcfsidR-R",
+  [740] = "efdabsRR", [741] = "efdnabsRR", [742] = "efdnegRR",
+  [744] = "efdmulRRR", [745] = "efddivRRR",
+  [746] = "efdctuidzR-R", [747] = "efdctsidzR-R",
+  [748] = "efdcmpgtYRR", [749] = "efdcmpltYRR", [750] = "efdcmpeqYRR",
+  [751] = "efdcfsR-R",
+  [752] = "efdcfuiR-R", [753] = "efdcfsiR-R",
+  [754] = "efdcfufR-R", [755] = "efdcfsfR-R",
+  [756] = "efdctuiR-R", [757] = "efdctsiR-R",
+  [758] = "efdctufR-R", [759] = "efdctsfR-R",
+  [760] = "efdctuizR-R", [762] = "efdctsizR-R",
+  [764] = "efdtstgtYRR", [765] = "efdtstltYRR", [766] = "efdtsteqYRR",
+
+  [768] = "evlddxRR0R", [769] = "evlddRR8",
+  [770] = "evldwxRR0R", [771] = "evldwRR8",
+  [772] = "evldhxRR0R", [773] = "evldhRR8",
+  [776] = "evlhhesplatxRR0R", [777] = "evlhhesplatRR2",
+  [780] = "evlhhousplatxRR0R", [781] = "evlhhousplatRR2",
+  [782] = "evlhhossplatxRR0R", [783] = "evlhhossplatRR2",
+  [784] = "evlwhexRR0R", [785] = "evlwheRR4",
+  [788] = "evlwhouxRR0R", [789] = "evlwhouRR4",
+  [790] = "evlwhosxRR0R", [791] = "evlwhosRR4",
+  [792] = "evlwwsplatxRR0R", [793] = "evlwwsplatRR4",
+  [796] = "evlwhsplatxRR0R", [797] = "evlwhsplatRR4",
+
+  [800] = "evstddxRR0R", [801] = "evstddRR8",
+  [802] = "evstdwxRR0R", [803] = "evstdwRR8",
+  [804] = "evstdhxRR0R", [805] = "evstdhRR8",
+  [816] = "evstwhexRR0R", [817] = "evstwheRR4",
+  [820] = "evstwhoxRR0R", [821] = "evstwhoRR4",
+  [824] = "evstwwexRR0R", [825] = "evstwweRR4",
+  [828] = "evstwwoxRR0R", [829] = "evstwwoRR4",
+
+  [1027] = "evmhessfRRR", [1031] = "evmhossfRRR", [1032] = "evmheumiRRR",
+  [1033] = "evmhesmiRRR", [1035] = "evmhesmfRRR", [1036] = "evmhoumiRRR",
+  [1037] = "evmhosmiRRR", [1039] = "evmhosmfRRR", [1059] = "evmhessfaRRR",
+  [1063] = "evmhossfaRRR", [1064] = "evmheumiaRRR", [1065] = "evmhesmiaRRR",
+  [1067] = "evmhesmfaRRR", [1068] = "evmhoumiaRRR", [1069] = "evmhosmiaRRR",
+  [1071] = "evmhosmfaRRR", [1095] = "evmwhssfRRR", [1096] = "evmwlumiRRR",
+  [1100] = "evmwhumiRRR", [1101] = "evmwhsmiRRR", [1103] = "evmwhsmfRRR",
+  [1107] = "evmwssfRRR", [1112] = "evmwumiRRR", [1113] = "evmwsmiRRR",
+  [1115] = "evmwsmfRRR", [1127] = "evmwhssfaRRR", [1128] = "evmwlumiaRRR",
+  [1132] = "evmwhumiaRRR", [1133] = "evmwhsmiaRRR", [1135] = "evmwhsmfaRRR",
+  [1139] = "evmwssfaRRR", [1144] = "evmwumiaRRR", [1145] = "evmwsmiaRRR",
+  [1147] = "evmwsmfaRRR",
+
+  [1216] = "evaddusiaawRR", [1217] = "evaddssiaawRR",
+  [1218] = "evsubfusiaawRR", [1219] = "evsubfssiaawRR",
+  [1220] = "evmraRR",
+  [1222] = "evdivwsRRR", [1223] = "evdivwuRRR",
+  [1224] = "evaddumiaawRR", [1225] = "evaddsmiaawRR",
+  [1226] = "evsubfumiaawRR", [1227] = "evsubfsmiaawRR",
+
+  [1280] = "evmheusiaawRRR", [1281] = "evmhessiaawRRR",
+  [1283] = "evmhessfaawRRR", [1284] = "evmhousiaawRRR",
+  [1285] = "evmhossiaawRRR", [1287] = "evmhossfaawRRR",
+  [1288] = "evmheumiaawRRR", [1289] = "evmhesmiaawRRR",
+  [1291] = "evmhesmfaawRRR", [1292] = "evmhoumiaawRRR",
+  [1293] = "evmhosmiaawRRR", [1295] = "evmhosmfaawRRR",
+  [1320] = "evmhegumiaaRRR", [1321] = "evmhegsmiaaRRR",
+  [1323] = "evmhegsmfaaRRR", [1324] = "evmhogumiaaRRR",
+  [1325] = "evmhogsmiaaRRR", [1327] = "evmhogsmfaaRRR",
+  [1344] = "evmwlusiaawRRR", [1345] = "evmwlssiaawRRR",
+  [1352] = "evmwlumiaawRRR", [1353] = "evmwlsmiaawRRR",
+  [1363] = "evmwssfaaRRR", [1368] = "evmwumiaaRRR",
+  [1369] = "evmwsmiaaRRR", [1371] = "evmwsmfaaRRR",
+  [1408] = "evmheusianwRRR", [1409] = "evmhessianwRRR",
+  [1411] = "evmhessfanwRRR", [1412] = "evmhousianwRRR",
+  [1413] = "evmhossianwRRR", [1415] = "evmhossfanwRRR",
+  [1416] = "evmheumianwRRR", [1417] = "evmhesmianwRRR",
+  [1419] = "evmhesmfanwRRR", [1420] = "evmhoumianwRRR",
+  [1421] = "evmhosmianwRRR", [1423] = "evmhosmfanwRRR",
+  [1448] = "evmhegumianRRR", [1449] = "evmhegsmianRRR",
+  [1451] = "evmhegsmfanRRR", [1452] = "evmhogumianRRR",
+  [1453] = "evmhogsmianRRR", [1455] = "evmhogsmfanRRR",
+  [1472] = "evmwlusianwRRR", [1473] = "evmwlssianwRRR",
+  [1480] = "evmwlumianwRRR", [1481] = "evmwlsmianwRRR",
+  [1491] = "evmwssfanRRR", [1496] = "evmwumianRRR",
+  [1497] = "evmwsmianRRR", [1499] = "evmwsmfanRRR",
+}
+
+local map_pri = {
+  [0] = false,	false,		"tdiARI",	"twiARI",
+  map_spe,	false,		false,		"mulliRRI",
+  "subficRRI",	false,		"cmpl_iYLRU",	"cmp_iYLRI",
+  "addicRRI",	"addic.RRI",	"addi|liRR0I",	"addis|lisRR0I",
+  "b_KBJ",	"sc",		 "bKJ",		map_crops,
+  "rlwimiRR~AAA.", map_rlwinm,	false,		"rlwnmRR~RAA.",
+  "oriNRR~U",	"orisRR~U",	"xoriRR~U",	"xorisRR~U",
+  "andi.RR~U",	"andis.RR~U",	map_rld,	map_ext,
+  "lwzRRD",	"lwzuRRD",	"lbzRRD",	"lbzuRRD",
+  "stwRRD",	"stwuRRD",	"stbRRD",	"stbuRRD",
+  "lhzRRD",	"lhzuRRD",	"lhaRRD",	"lhauRRD",
+  "sthRRD",	"sthuRRD",	"lmwRRD",	"stmwRRD",
+  "lfsFRD",	"lfsuFRD",	"lfdFRD",	"lfduFRD",
+  "stfsFRD",	"stfsuFRD",	"stfdFRD",	"stfduFRD",
+  false,	false,		map_ld,		map_fps,
+  false,	false,		map_std,	map_fpd,
+}
+
+------------------------------------------------------------------------------
+
+local map_gpr = {
+  [0] = "r0", "sp", "r2", "r3", "r4", "r5", "r6", "r7",
+  "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
+  "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
+  "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
+}
+
+local map_cond = { [0] = "lt", "gt", "eq", "so", "ge", "le", "ne", "ns", }
+
+-- Format a condition bit.
+local function condfmt(cond)
+  if cond <= 3 then
+    return map_cond[band(cond, 3)]
+  else
+    return format("4*cr%d+%s", rshift(cond, 2), map_cond[band(cond, 3)])
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Output a nicely formatted line with an opcode and operands.
+local function putop(ctx, text, operands)
+  local pos = ctx.pos
+  local extra = ""
+  if ctx.rel then
+    local sym = ctx.symtab[ctx.rel]
+    if sym then extra = "\t->"..sym end
+  end
+  if ctx.hexdump > 0 then
+    ctx.out(format("%08x  %s  %-7s %s%s\n",
+	    ctx.addr+pos, tohex(ctx.op), text, concat(operands, ", "), extra))
+  else
+    ctx.out(format("%08x  %-7s %s%s\n",
+	    ctx.addr+pos, text, concat(operands, ", "), extra))
+  end
+  ctx.pos = pos + 4
+end
+
+-- Fallback for unknown opcodes.
+local function unknown(ctx)
+  return putop(ctx, ".long", { "0x"..tohex(ctx.op) })
+end
+
+-- Disassemble a single instruction.
+local function disass_ins(ctx)
+  local pos = ctx.pos
+  local b0, b1, b2, b3 = byte(ctx.code, pos+1, pos+4)
+  local op = bor(lshift(b0, 24), lshift(b1, 16), lshift(b2, 8), b3)
+  local operands = {}
+  local last = nil
+  local rs = 21
+  ctx.op = op
+  ctx.rel = nil
+
+  local opat = map_pri[rshift(b0, 2)]
+  while type(opat) ~= "string" do
+    if not opat then return unknown(ctx) end
+    opat = opat[band(rshift(op, opat.shift), opat.mask)]
+  end
+  local name, pat = match(opat, "^([a-z0-9_.]*)(.*)")
+  local altname, pat2 = match(pat, "|([a-z0-9_.]*)(.*)")
+  if altname then pat = pat2 end
+
+  for p in gmatch(pat, ".") do
+    local x = nil
+    if p == "R" then
+      x = map_gpr[band(rshift(op, rs), 31)]
+      rs = rs - 5
+    elseif p == "F" then
+      x = "f"..band(rshift(op, rs), 31)
+      rs = rs - 5
+    elseif p == "A" then
+      x = band(rshift(op, rs), 31)
+      rs = rs - 5
+    elseif p == "S" then
+      x = arshift(lshift(op, 27-rs), 27)
+      rs = rs - 5
+    elseif p == "I" then
+      x = arshift(lshift(op, 16), 16)
+    elseif p == "U" then
+      x = band(op, 0xffff)
+    elseif p == "D" or p == "E" then
+      local disp = arshift(lshift(op, 16), 16)
+      if p == "E" then disp = band(disp, -4) end
+      if last == "r0" then last = "0" end
+      operands[#operands] = format("%d(%s)", disp, last)
+    elseif p >= "2" and p <= "8" then
+      local disp = band(rshift(op, rs), 31) * p
+      if last == "r0" then last = "0" end
+      operands[#operands] = format("%d(%s)", disp, last)
+    elseif p == "H" then
+      x = band(rshift(op, rs), 31) + lshift(band(op, 2), 4)
+      rs = rs - 5
+    elseif p == "M" then
+      x = band(rshift(op, rs), 31) + band(op, 0x20)
+    elseif p == "C" then
+      x = condfmt(band(rshift(op, rs), 31))
+      rs = rs - 5
+    elseif p == "B" then
+      local bo = rshift(op, 21)
+      local cond = band(rshift(op, 16), 31)
+      local cn = ""
+      rs = rs - 10
+      if band(bo, 4) == 0 then
+	cn = band(bo, 2) == 0 and "dnz" or "dz"
+	if band(bo, 0x10) == 0 then
+	  cn = cn..(band(bo, 8) == 0 and "f" or "t")
+	end
+	if band(bo, 0x10) == 0 then x = condfmt(cond) end
+	name = name..(band(bo, 1) == band(rshift(op, 15), 1) and "-" or "+")
+      elseif band(bo, 0x10) == 0 then
+	cn = map_cond[band(cond, 3) + (band(bo, 8) == 0 and 4 or 0)]
+	if cond > 3 then x = "cr"..rshift(cond, 2) end
+	name = name..(band(bo, 1) == band(rshift(op, 15), 1) and "-" or "+")
+      end
+      name = gsub(name, "_", cn)
+    elseif p == "J" then
+      x = arshift(lshift(op, 27-rs), 29-rs)*4
+      if band(op, 2) == 0 then x = ctx.addr + pos + x end
+      ctx.rel = x
+      x = "0x"..tohex(x)
+    elseif p == "K" then
+      if band(op, 1) ~= 0 then name = name.."l" end
+      if band(op, 2) ~= 0 then name = name.."a" end
+    elseif p == "X" or p == "Y" then
+      x = band(rshift(op, rs+2), 7)
+      if x == 0 and p == "Y" then x = nil else x = "cr"..x end
+      rs = rs - 5
+    elseif p == "W" then
+      x = "cr"..band(op, 7)
+    elseif p == "Z" then
+      x = band(rshift(op, rs-4), 255)
+      rs = rs - 10
+    elseif p == ">" then
+      operands[#operands] = rshift(operands[#operands], 1)
+    elseif p == "0" then
+      if last == "r0" then
+	operands[#operands] = nil
+	if altname then name = altname end
+      end
+    elseif p == "L" then
+      name = gsub(name, "_", band(op, 0x00200000) ~= 0 and "d" or "w")
+    elseif p == "." then
+      if band(op, 1) == 1 then name = name.."." end
+    elseif p == "N" then
+      if op == 0x60000000 then name = "nop"; break end
+    elseif p == "~" then
+      local n = #operands
+      operands[n-1],  operands[n] = operands[n], operands[n-1]
+    elseif p == "=" then
+      local n = #operands
+      if last == operands[n-1] then
+	operands[n] = nil
+	name = altname
+      end
+    elseif p == "%" then
+      local n = #operands
+      if last == operands[n-1] and last == operands[n-2] then
+	operands[n] = nil
+	operands[n-1] = nil
+	name = altname
+      end
+    elseif p == "-" then
+      rs = rs - 5
+    else
+      assert(false)
+    end
+    if x then operands[#operands+1] = x; last = x end
+  end
+
+  return putop(ctx, name, operands)
+end
+
+------------------------------------------------------------------------------
+
+-- Disassemble a block of code.
+local function disass_block(ctx, ofs, len)
+  if not ofs then ofs = 0 end
+  local stop = len and ofs+len or #ctx.code
+  stop = stop - stop % 4
+  ctx.pos = ofs - ofs % 4
+  ctx.rel = nil
+  while ctx.pos < stop do disass_ins(ctx) end
+end
+
+-- Extended API: create a disassembler context. Then call ctx:disass(ofs, len).
+local function create(code, addr, out)
+  local ctx = {}
+  ctx.code = code
+  ctx.addr = addr or 0
+  ctx.out = out or io.write
+  ctx.symtab = {}
+  ctx.disass = disass_block
+  ctx.hexdump = 8
+  return ctx
+end
+
+-- Simple API: disassemble code (a string) at address and output via out.
+local function disass(code, addr, out)
+  create(code, addr, out):disass()
+end
+
+-- Return register name for RID.
+local function regname(r)
+  if r < 32 then return map_gpr[r] end
+  return "f"..(r-32)
+end
+
+-- Public module functions.
+return {
+  create = create,
+  disass = disass,
+  regname = regname
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/dis_x64.lua b/libs/luajit-cmake/luajit/src/jit/dis_x64.lua
new file mode 100644
index 0000000..d076c6a
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/dis_x64.lua
@@ -0,0 +1,17 @@
+----------------------------------------------------------------------------
+-- LuaJIT x64 disassembler wrapper module.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This module just exports the 64 bit functions from the combined
+-- x86/x64 disassembler module. All the interesting stuff is there.
+------------------------------------------------------------------------------
+
+local dis_x86 = require((string.match(..., ".*%.") or "").."dis_x86")
+return {
+  create = dis_x86.create64,
+  disass = dis_x86.disass64,
+  regname = dis_x86.regname64
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/dis_x86.lua b/libs/luajit-cmake/luajit/src/jit/dis_x86.lua
new file mode 100644
index 0000000..84492ff
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/dis_x86.lua
@@ -0,0 +1,953 @@
+----------------------------------------------------------------------------
+-- LuaJIT x86/x64 disassembler module.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+-- This is a helper module used by the LuaJIT machine code dumper module.
+--
+-- Sending small code snippets to an external disassembler and mixing the
+-- output with our own stuff was too fragile. So I had to bite the bullet
+-- and write yet another x86 disassembler. Oh well ...
+--
+-- The output format is very similar to what ndisasm generates. But it has
+-- been developed independently by looking at the opcode tables from the
+-- Intel and AMD manuals. The supported instruction set is quite extensive
+-- and reflects what a current generation Intel or AMD CPU implements in
+-- 32 bit and 64 bit mode. Yes, this includes MMX, SSE, SSE2, SSE3, SSSE3,
+-- SSE4.1, SSE4.2, SSE4a, AVX, AVX2 and even privileged and hypervisor
+-- (VMX/SVM) instructions.
+--
+-- Notes:
+-- * The (useless) a16 prefix, 3DNow and pre-586 opcodes are unsupported.
+-- * No attempt at optimization has been made -- it's fast enough for my needs.
+------------------------------------------------------------------------------
+
+local type = type
+local sub, byte, format = string.sub, string.byte, string.format
+local match, gmatch, gsub = string.match, string.gmatch, string.gsub
+local lower, rep = string.lower, string.rep
+local bit = require("bit")
+local tohex = bit.tohex
+
+-- Map for 1st opcode byte in 32 bit mode. Ugly? Well ... read on.
+local map_opc1_32 = {
+--0x
+[0]="addBmr","addVmr","addBrm","addVrm","addBai","addVai","push es","pop es",
+"orBmr","orVmr","orBrm","orVrm","orBai","orVai","push cs","opc2*",
+--1x
+"adcBmr","adcVmr","adcBrm","adcVrm","adcBai","adcVai","push ss","pop ss",
+"sbbBmr","sbbVmr","sbbBrm","sbbVrm","sbbBai","sbbVai","push ds","pop ds",
+--2x
+"andBmr","andVmr","andBrm","andVrm","andBai","andVai","es:seg","daa",
+"subBmr","subVmr","subBrm","subVrm","subBai","subVai","cs:seg","das",
+--3x
+"xorBmr","xorVmr","xorBrm","xorVrm","xorBai","xorVai","ss:seg","aaa",
+"cmpBmr","cmpVmr","cmpBrm","cmpVrm","cmpBai","cmpVai","ds:seg","aas",
+--4x
+"incVR","incVR","incVR","incVR","incVR","incVR","incVR","incVR",
+"decVR","decVR","decVR","decVR","decVR","decVR","decVR","decVR",
+--5x
+"pushUR","pushUR","pushUR","pushUR","pushUR","pushUR","pushUR","pushUR",
+"popUR","popUR","popUR","popUR","popUR","popUR","popUR","popUR",
+--6x
+"sz*pushaw,pusha","sz*popaw,popa","boundVrm","arplWmr",
+"fs:seg","gs:seg","o16:","a16",
+"pushUi","imulVrmi","pushBs","imulVrms",
+"insb","insVS","outsb","outsVS",
+--7x
+"joBj","jnoBj","jbBj","jnbBj","jzBj","jnzBj","jbeBj","jaBj",
+"jsBj","jnsBj","jpeBj","jpoBj","jlBj","jgeBj","jleBj","jgBj",
+--8x
+"arith!Bmi","arith!Vmi","arith!Bmi","arith!Vms",
+"testBmr","testVmr","xchgBrm","xchgVrm",
+"movBmr","movVmr","movBrm","movVrm",
+"movVmg","leaVrm","movWgm","popUm",
+--9x
+"nop*xchgVaR|pause|xchgWaR|repne nop","xchgVaR","xchgVaR","xchgVaR",
+"xchgVaR","xchgVaR","xchgVaR","xchgVaR",
+"sz*cbw,cwde,cdqe","sz*cwd,cdq,cqo","call farViw","wait",
+"sz*pushfw,pushf","sz*popfw,popf","sahf","lahf",
+--Ax
+"movBao","movVao","movBoa","movVoa",
+"movsb","movsVS","cmpsb","cmpsVS",
+"testBai","testVai","stosb","stosVS",
+"lodsb","lodsVS","scasb","scasVS",
+--Bx
+"movBRi","movBRi","movBRi","movBRi","movBRi","movBRi","movBRi","movBRi",
+"movVRI","movVRI","movVRI","movVRI","movVRI","movVRI","movVRI","movVRI",
+--Cx
+"shift!Bmu","shift!Vmu","retBw","ret","vex*3$lesVrm","vex*2$ldsVrm","movBmi","movVmi",
+"enterBwu","leave","retfBw","retf","int3","intBu","into","iretVS",
+--Dx
+"shift!Bm1","shift!Vm1","shift!Bmc","shift!Vmc","aamBu","aadBu","salc","xlatb",
+"fp*0","fp*1","fp*2","fp*3","fp*4","fp*5","fp*6","fp*7",
+--Ex
+"loopneBj","loopeBj","loopBj","sz*jcxzBj,jecxzBj,jrcxzBj",
+"inBau","inVau","outBua","outVua",
+"callVj","jmpVj","jmp farViw","jmpBj","inBad","inVad","outBda","outVda",
+--Fx
+"lock:","int1","repne:rep","rep:","hlt","cmc","testb!Bm","testv!Vm",
+"clc","stc","cli","sti","cld","std","incb!Bm","incd!Vm",
+}
+assert(#map_opc1_32 == 255)
+
+-- Map for 1st opcode byte in 64 bit mode (overrides only).
+local map_opc1_64 = setmetatable({
+  [0x06]=false, [0x07]=false, [0x0e]=false,
+  [0x16]=false, [0x17]=false, [0x1e]=false, [0x1f]=false,
+  [0x27]=false, [0x2f]=false, [0x37]=false, [0x3f]=false,
+  [0x60]=false, [0x61]=false, [0x62]=false, [0x63]="movsxdVrDmt", [0x67]="a32:",
+  [0x40]="rex*",   [0x41]="rex*b",   [0x42]="rex*x",   [0x43]="rex*xb",
+  [0x44]="rex*r",  [0x45]="rex*rb",  [0x46]="rex*rx",  [0x47]="rex*rxb",
+  [0x48]="rex*w",  [0x49]="rex*wb",  [0x4a]="rex*wx",  [0x4b]="rex*wxb",
+  [0x4c]="rex*wr", [0x4d]="rex*wrb", [0x4e]="rex*wrx", [0x4f]="rex*wrxb",
+  [0x82]=false, [0x9a]=false, [0xc4]="vex*3", [0xc5]="vex*2", [0xce]=false,
+  [0xd4]=false, [0xd5]=false, [0xd6]=false, [0xea]=false,
+}, { __index = map_opc1_32 })
+
+-- Map for 2nd opcode byte (0F xx). True CISC hell. Hey, I told you.
+-- Prefix dependent MMX/SSE opcodes: (none)|rep|o16|repne, -|F3|66|F2
+local map_opc2 = {
+--0x
+[0]="sldt!Dmp","sgdt!Ump","larVrm","lslVrm",nil,"syscall","clts","sysret",
+"invd","wbinvd",nil,"ud1",nil,"$prefetch!Bm","femms","3dnowMrmu",
+--1x
+"movupsXrm|movssXrvm|movupdXrm|movsdXrvm",
+"movupsXmr|movssXmvr|movupdXmr|movsdXmvr",
+"movhlpsXrm$movlpsXrm|movsldupXrm|movlpdXrm|movddupXrm",
+"movlpsXmr||movlpdXmr",
+"unpcklpsXrvm||unpcklpdXrvm",
+"unpckhpsXrvm||unpckhpdXrvm",
+"movlhpsXrm$movhpsXrm|movshdupXrm|movhpdXrm",
+"movhpsXmr||movhpdXmr",
+"$prefetcht!Bm","hintnopVm","hintnopVm","hintnopVm",
+"hintnopVm","hintnopVm","hintnopVm","hintnopVm",
+--2x
+"movUmx$","movUmy$","movUxm$","movUym$","movUmz$",nil,"movUzm$",nil,
+"movapsXrm||movapdXrm",
+"movapsXmr||movapdXmr",
+"cvtpi2psXrMm|cvtsi2ssXrvVmt|cvtpi2pdXrMm|cvtsi2sdXrvVmt",
+"movntpsXmr|movntssXmr|movntpdXmr|movntsdXmr",
+"cvttps2piMrXm|cvttss2siVrXm|cvttpd2piMrXm|cvttsd2siVrXm",
+"cvtps2piMrXm|cvtss2siVrXm|cvtpd2piMrXm|cvtsd2siVrXm",
+"ucomissXrm||ucomisdXrm",
+"comissXrm||comisdXrm",
+--3x
+"wrmsr","rdtsc","rdmsr","rdpmc","sysenter","sysexit",nil,"getsec",
+"opc3*38",nil,"opc3*3a",nil,nil,nil,nil,nil,
+--4x
+"cmovoVrm","cmovnoVrm","cmovbVrm","cmovnbVrm",
+"cmovzVrm","cmovnzVrm","cmovbeVrm","cmovaVrm",
+"cmovsVrm","cmovnsVrm","cmovpeVrm","cmovpoVrm",
+"cmovlVrm","cmovgeVrm","cmovleVrm","cmovgVrm",
+--5x
+"movmskpsVrXm$||movmskpdVrXm$","sqrtpsXrm|sqrtssXrm|sqrtpdXrm|sqrtsdXrm",
+"rsqrtpsXrm|rsqrtssXrvm","rcppsXrm|rcpssXrvm",
+"andpsXrvm||andpdXrvm","andnpsXrvm||andnpdXrvm",
+"orpsXrvm||orpdXrvm","xorpsXrvm||xorpdXrvm",
+"addpsXrvm|addssXrvm|addpdXrvm|addsdXrvm","mulpsXrvm|mulssXrvm|mulpdXrvm|mulsdXrvm",
+"cvtps2pdXrm|cvtss2sdXrvm|cvtpd2psXrm|cvtsd2ssXrvm",
+"cvtdq2psXrm|cvttps2dqXrm|cvtps2dqXrm",
+"subpsXrvm|subssXrvm|subpdXrvm|subsdXrvm","minpsXrvm|minssXrvm|minpdXrvm|minsdXrvm",
+"divpsXrvm|divssXrvm|divpdXrvm|divsdXrvm","maxpsXrvm|maxssXrvm|maxpdXrvm|maxsdXrvm",
+--6x
+"punpcklbwPrvm","punpcklwdPrvm","punpckldqPrvm","packsswbPrvm",
+"pcmpgtbPrvm","pcmpgtwPrvm","pcmpgtdPrvm","packuswbPrvm",
+"punpckhbwPrvm","punpckhwdPrvm","punpckhdqPrvm","packssdwPrvm",
+"||punpcklqdqXrvm","||punpckhqdqXrvm",
+"movPrVSm","movqMrm|movdquXrm|movdqaXrm",
+--7x
+"pshufwMrmu|pshufhwXrmu|pshufdXrmu|pshuflwXrmu","pshiftw!Pvmu",
+"pshiftd!Pvmu","pshiftq!Mvmu||pshiftdq!Xvmu",
+"pcmpeqbPrvm","pcmpeqwPrvm","pcmpeqdPrvm","emms*|",
+"vmreadUmr||extrqXmuu$|insertqXrmuu$","vmwriteUrm||extrqXrm$|insertqXrm$",
+nil,nil,
+"||haddpdXrvm|haddpsXrvm","||hsubpdXrvm|hsubpsXrvm",
+"movVSmMr|movqXrm|movVSmXr","movqMmr|movdquXmr|movdqaXmr",
+--8x
+"joVj","jnoVj","jbVj","jnbVj","jzVj","jnzVj","jbeVj","jaVj",
+"jsVj","jnsVj","jpeVj","jpoVj","jlVj","jgeVj","jleVj","jgVj",
+--9x
+"setoBm","setnoBm","setbBm","setnbBm","setzBm","setnzBm","setbeBm","setaBm",
+"setsBm","setnsBm","setpeBm","setpoBm","setlBm","setgeBm","setleBm","setgBm",
+--Ax
+"push fs","pop fs","cpuid","btVmr","shldVmru","shldVmrc",nil,nil,
+"push gs","pop gs","rsm","btsVmr","shrdVmru","shrdVmrc","fxsave!Dmp","imulVrm",
+--Bx
+"cmpxchgBmr","cmpxchgVmr","$lssVrm","btrVmr",
+"$lfsVrm","$lgsVrm","movzxVrBmt","movzxVrWmt",
+"|popcntVrm","ud2Dp","bt!Vmu","btcVmr",
+"bsfVrm","bsrVrm|lzcntVrm|bsrWrm","movsxVrBmt","movsxVrWmt",
+--Cx
+"xaddBmr","xaddVmr",
+"cmppsXrvmu|cmpssXrvmu|cmppdXrvmu|cmpsdXrvmu","$movntiVmr|",
+"pinsrwPrvWmu","pextrwDrPmu",
+"shufpsXrvmu||shufpdXrvmu","$cmpxchg!Qmp",
+"bswapVR","bswapVR","bswapVR","bswapVR","bswapVR","bswapVR","bswapVR","bswapVR",
+--Dx
+"||addsubpdXrvm|addsubpsXrvm","psrlwPrvm","psrldPrvm","psrlqPrvm",
+"paddqPrvm","pmullwPrvm",
+"|movq2dqXrMm|movqXmr|movdq2qMrXm$","pmovmskbVrMm||pmovmskbVrXm",
+"psubusbPrvm","psubuswPrvm","pminubPrvm","pandPrvm",
+"paddusbPrvm","padduswPrvm","pmaxubPrvm","pandnPrvm",
+--Ex
+"pavgbPrvm","psrawPrvm","psradPrvm","pavgwPrvm",
+"pmulhuwPrvm","pmulhwPrvm",
+"|cvtdq2pdXrm|cvttpd2dqXrm|cvtpd2dqXrm","$movntqMmr||$movntdqXmr",
+"psubsbPrvm","psubswPrvm","pminswPrvm","porPrvm",
+"paddsbPrvm","paddswPrvm","pmaxswPrvm","pxorPrvm",
+--Fx
+"|||lddquXrm","psllwPrvm","pslldPrvm","psllqPrvm",
+"pmuludqPrvm","pmaddwdPrvm","psadbwPrvm","maskmovqMrm||maskmovdquXrm$",
+"psubbPrvm","psubwPrvm","psubdPrvm","psubqPrvm",
+"paddbPrvm","paddwPrvm","padddPrvm","ud",
+}
+assert(map_opc2[255] == "ud")
+
+-- Map for three-byte opcodes. Can't wait for their next invention.
+local map_opc3 = {
+["38"] = { -- [66] 0f 38 xx
+--0x
+[0]="pshufbPrvm","phaddwPrvm","phadddPrvm","phaddswPrvm",
+"pmaddubswPrvm","phsubwPrvm","phsubdPrvm","phsubswPrvm",
+"psignbPrvm","psignwPrvm","psigndPrvm","pmulhrswPrvm",
+"||permilpsXrvm","||permilpdXrvm",nil,nil,
+--1x
+"||pblendvbXrma",nil,nil,nil,
+"||blendvpsXrma","||blendvpdXrma","||permpsXrvm","||ptestXrm",
+"||broadcastssXrm","||broadcastsdXrm","||broadcastf128XrlXm",nil,
+"pabsbPrm","pabswPrm","pabsdPrm",nil,
+--2x
+"||pmovsxbwXrm","||pmovsxbdXrm","||pmovsxbqXrm","||pmovsxwdXrm",
+"||pmovsxwqXrm","||pmovsxdqXrm",nil,nil,
+"||pmuldqXrvm","||pcmpeqqXrvm","||$movntdqaXrm","||packusdwXrvm",
+"||maskmovpsXrvm","||maskmovpdXrvm","||maskmovpsXmvr","||maskmovpdXmvr",
+--3x
+"||pmovzxbwXrm","||pmovzxbdXrm","||pmovzxbqXrm","||pmovzxwdXrm",
+"||pmovzxwqXrm","||pmovzxdqXrm","||permdXrvm","||pcmpgtqXrvm",
+"||pminsbXrvm","||pminsdXrvm","||pminuwXrvm","||pminudXrvm",
+"||pmaxsbXrvm","||pmaxsdXrvm","||pmaxuwXrvm","||pmaxudXrvm",
+--4x
+"||pmulddXrvm","||phminposuwXrm",nil,nil,
+nil,"||psrlvVSXrvm","||psravdXrvm","||psllvVSXrvm",
+--5x
+[0x58] = "||pbroadcastdXrlXm",[0x59] = "||pbroadcastqXrlXm",
+[0x5a] = "||broadcasti128XrlXm",
+--7x
+[0x78] = "||pbroadcastbXrlXm",[0x79] = "||pbroadcastwXrlXm",
+--8x
+[0x8c] = "||pmaskmovXrvVSm",
+[0x8e] = "||pmaskmovVSmXvr",
+--9x
+[0x96] = "||fmaddsub132pHXrvm",[0x97] = "||fmsubadd132pHXrvm",
+[0x98] = "||fmadd132pHXrvm",[0x99] = "||fmadd132sHXrvm",
+[0x9a] = "||fmsub132pHXrvm",[0x9b] = "||fmsub132sHXrvm",
+[0x9c] = "||fnmadd132pHXrvm",[0x9d] = "||fnmadd132sHXrvm",
+[0x9e] = "||fnmsub132pHXrvm",[0x9f] = "||fnmsub132sHXrvm",
+--Ax
+[0xa6] = "||fmaddsub213pHXrvm",[0xa7] = "||fmsubadd213pHXrvm",
+[0xa8] = "||fmadd213pHXrvm",[0xa9] = "||fmadd213sHXrvm",
+[0xaa] = "||fmsub213pHXrvm",[0xab] = "||fmsub213sHXrvm",
+[0xac] = "||fnmadd213pHXrvm",[0xad] = "||fnmadd213sHXrvm",
+[0xae] = "||fnmsub213pHXrvm",[0xaf] = "||fnmsub213sHXrvm",
+--Bx
+[0xb6] = "||fmaddsub231pHXrvm",[0xb7] = "||fmsubadd231pHXrvm",
+[0xb8] = "||fmadd231pHXrvm",[0xb9] = "||fmadd231sHXrvm",
+[0xba] = "||fmsub231pHXrvm",[0xbb] = "||fmsub231sHXrvm",
+[0xbc] = "||fnmadd231pHXrvm",[0xbd] = "||fnmadd231sHXrvm",
+[0xbe] = "||fnmsub231pHXrvm",[0xbf] = "||fnmsub231sHXrvm",
+--Dx
+[0xdc] = "||aesencXrvm", [0xdd] = "||aesenclastXrvm",
+[0xde] = "||aesdecXrvm", [0xdf] = "||aesdeclastXrvm",
+--Fx
+[0xf0] = "|||crc32TrBmt",[0xf1] = "|||crc32TrVmt",
+[0xf7] = "| sarxVrmv| shlxVrmv| shrxVrmv",
+},
+
+["3a"] = { -- [66] 0f 3a xx
+--0x
+[0x00]="||permqXrmu","||permpdXrmu","||pblenddXrvmu",nil,
+"||permilpsXrmu","||permilpdXrmu","||perm2f128Xrvmu",nil,
+"||roundpsXrmu","||roundpdXrmu","||roundssXrvmu","||roundsdXrvmu",
+"||blendpsXrvmu","||blendpdXrvmu","||pblendwXrvmu","palignrPrvmu",
+--1x
+nil,nil,nil,nil,
+"||pextrbVmXru","||pextrwVmXru","||pextrVmSXru","||extractpsVmXru",
+"||insertf128XrvlXmu","||extractf128XlXmYru",nil,nil,
+nil,nil,nil,nil,
+--2x
+"||pinsrbXrvVmu","||insertpsXrvmu","||pinsrXrvVmuS",nil,
+--3x
+[0x38] = "||inserti128Xrvmu",[0x39] = "||extracti128XlXmYru",
+--4x
+[0x40] = "||dppsXrvmu",
+[0x41] = "||dppdXrvmu",
+[0x42] = "||mpsadbwXrvmu",
+[0x44] = "||pclmulqdqXrvmu",
+[0x46] = "||perm2i128Xrvmu",
+[0x4a] = "||blendvpsXrvmb",[0x4b] = "||blendvpdXrvmb",
+[0x4c] = "||pblendvbXrvmb",
+--6x
+[0x60] = "||pcmpestrmXrmu",[0x61] = "||pcmpestriXrmu",
+[0x62] = "||pcmpistrmXrmu",[0x63] = "||pcmpistriXrmu",
+[0xdf] = "||aeskeygenassistXrmu",
+--Fx
+[0xf0] = "||| rorxVrmu",
+},
+}
+
+-- Map for VMX/SVM opcodes 0F 01 C0-FF (sgdt group with register operands).
+local map_opcvm = {
+[0xc1]="vmcall",[0xc2]="vmlaunch",[0xc3]="vmresume",[0xc4]="vmxoff",
+[0xc8]="monitor",[0xc9]="mwait",
+[0xd8]="vmrun",[0xd9]="vmmcall",[0xda]="vmload",[0xdb]="vmsave",
+[0xdc]="stgi",[0xdd]="clgi",[0xde]="skinit",[0xdf]="invlpga",
+[0xf8]="swapgs",[0xf9]="rdtscp",
+}
+
+-- Map for FP opcodes. And you thought stack machines are simple?
+local map_opcfp = {
+-- D8-DF 00-BF: opcodes with a memory operand.
+-- D8
+[0]="faddFm","fmulFm","fcomFm","fcompFm","fsubFm","fsubrFm","fdivFm","fdivrFm",
+"fldFm",nil,"fstFm","fstpFm","fldenvVm","fldcwWm","fnstenvVm","fnstcwWm",
+-- DA
+"fiaddDm","fimulDm","ficomDm","ficompDm",
+"fisubDm","fisubrDm","fidivDm","fidivrDm",
+-- DB
+"fildDm","fisttpDm","fistDm","fistpDm",nil,"fld twordFmp",nil,"fstp twordFmp",
+-- DC
+"faddGm","fmulGm","fcomGm","fcompGm","fsubGm","fsubrGm","fdivGm","fdivrGm",
+-- DD
+"fldGm","fisttpQm","fstGm","fstpGm","frstorDmp",nil,"fnsaveDmp","fnstswWm",
+-- DE
+"fiaddWm","fimulWm","ficomWm","ficompWm",
+"fisubWm","fisubrWm","fidivWm","fidivrWm",
+-- DF
+"fildWm","fisttpWm","fistWm","fistpWm",
+"fbld twordFmp","fildQm","fbstp twordFmp","fistpQm",
+-- xx C0-FF: opcodes with a pseudo-register operand.
+-- D8
+"faddFf","fmulFf","fcomFf","fcompFf","fsubFf","fsubrFf","fdivFf","fdivrFf",
+-- D9
+"fldFf","fxchFf",{"fnop"},nil,
+{"fchs","fabs",nil,nil,"ftst","fxam"},
+{"fld1","fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz"},
+{"f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp","fincstp"},
+{"fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos"},
+-- DA
+"fcmovbFf","fcmoveFf","fcmovbeFf","fcmovuFf",nil,{nil,"fucompp"},nil,nil,
+-- DB
+"fcmovnbFf","fcmovneFf","fcmovnbeFf","fcmovnuFf",
+{nil,nil,"fnclex","fninit"},"fucomiFf","fcomiFf",nil,
+-- DC
+"fadd toFf","fmul toFf",nil,nil,
+"fsub toFf","fsubr toFf","fdivr toFf","fdiv toFf",
+-- DD
+"ffreeFf",nil,"fstFf","fstpFf","fucomFf","fucompFf",nil,nil,
+-- DE
+"faddpFf","fmulpFf",nil,{nil,"fcompp"},
+"fsubrpFf","fsubpFf","fdivrpFf","fdivpFf",
+-- DF
+nil,nil,nil,nil,{"fnstsw ax"},"fucomipFf","fcomipFf",nil,
+}
+assert(map_opcfp[126] == "fcomipFf")
+
+-- Map for opcode groups. The subkey is sp from the ModRM byte.
+local map_opcgroup = {
+  arith = { "add", "or", "adc", "sbb", "and", "sub", "xor", "cmp" },
+  shift = { "rol", "ror", "rcl", "rcr", "shl", "shr", "sal", "sar" },
+  testb = { "testBmi", "testBmi", "not", "neg", "mul", "imul", "div", "idiv" },
+  testv = { "testVmi", "testVmi", "not", "neg", "mul", "imul", "div", "idiv" },
+  incb = { "inc", "dec" },
+  incd = { "inc", "dec", "callUmp", "$call farDmp",
+	   "jmpUmp", "$jmp farDmp", "pushUm" },
+  sldt = { "sldt", "str", "lldt", "ltr", "verr", "verw" },
+  sgdt = { "vm*$sgdt", "vm*$sidt", "$lgdt", "vm*$lidt",
+	   "smsw", nil, "lmsw", "vm*$invlpg" },
+  bt = { nil, nil, nil, nil, "bt", "bts", "btr", "btc" },
+  cmpxchg = { nil, "sz*,cmpxchg8bQmp,cmpxchg16bXmp", nil, nil,
+	      nil, nil, "vmptrld|vmxon|vmclear", "vmptrst" },
+  pshiftw = { nil, nil, "psrlw", nil, "psraw", nil, "psllw" },
+  pshiftd = { nil, nil, "psrld", nil, "psrad", nil, "pslld" },
+  pshiftq = { nil, nil, "psrlq", nil, nil, nil, "psllq" },
+  pshiftdq = { nil, nil, "psrlq", "psrldq", nil, nil, "psllq", "pslldq" },
+  fxsave = { "$fxsave", "$fxrstor", "$ldmxcsr", "$stmxcsr",
+	     nil, "lfenceDp$", "mfenceDp$", "sfenceDp$clflush" },
+  prefetch = { "prefetch", "prefetchw" },
+  prefetcht = { "prefetchnta", "prefetcht0", "prefetcht1", "prefetcht2" },
+}
+
+------------------------------------------------------------------------------
+
+-- Maps for register names.
+local map_regs = {
+  B = { "al", "cl", "dl", "bl", "ah", "ch", "dh", "bh",
+	"r8b", "r9b", "r10b", "r11b", "r12b", "r13b", "r14b", "r15b" },
+  B64 = { "al", "cl", "dl", "bl", "spl", "bpl", "sil", "dil",
+	  "r8b", "r9b", "r10b", "r11b", "r12b", "r13b", "r14b", "r15b" },
+  W = { "ax", "cx", "dx", "bx", "sp", "bp", "si", "di",
+	"r8w", "r9w", "r10w", "r11w", "r12w", "r13w", "r14w", "r15w" },
+  D = { "eax", "ecx", "edx", "ebx", "esp", "ebp", "esi", "edi",
+	"r8d", "r9d", "r10d", "r11d", "r12d", "r13d", "r14d", "r15d" },
+  Q = { "rax", "rcx", "rdx", "rbx", "rsp", "rbp", "rsi", "rdi",
+	"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15" },
+  M = { "mm0", "mm1", "mm2", "mm3", "mm4", "mm5", "mm6", "mm7",
+	"mm0", "mm1", "mm2", "mm3", "mm4", "mm5", "mm6", "mm7" }, -- No x64 ext!
+  X = { "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7",
+	"xmm8", "xmm9", "xmm10", "xmm11", "xmm12", "xmm13", "xmm14", "xmm15" },
+  Y = { "ymm0", "ymm1", "ymm2", "ymm3", "ymm4", "ymm5", "ymm6", "ymm7",
+	"ymm8", "ymm9", "ymm10", "ymm11", "ymm12", "ymm13", "ymm14", "ymm15" },
+}
+local map_segregs = { "es", "cs", "ss", "ds", "fs", "gs", "segr6", "segr7" }
+
+-- Maps for size names.
+local map_sz2n = {
+  B = 1, W = 2, D = 4, Q = 8, M = 8, X = 16, Y = 32,
+}
+local map_sz2prefix = {
+  B = "byte", W = "word", D = "dword",
+  Q = "qword",
+  M = "qword", X = "xword", Y = "yword",
+  F = "dword", G = "qword", -- No need for sizes/register names for these two.
+}
+
+------------------------------------------------------------------------------
+
+-- Output a nicely formatted line with an opcode and operands.
+local function putop(ctx, text, operands)
+  local code, pos, hex = ctx.code, ctx.pos, ""
+  local hmax = ctx.hexdump
+  if hmax > 0 then
+    for i=ctx.start,pos-1 do
+      hex = hex..format("%02X", byte(code, i, i))
+    end
+    if #hex > hmax then hex = sub(hex, 1, hmax)..". "
+    else hex = hex..rep(" ", hmax-#hex+2) end
+  end
+  if operands then text = text.." "..operands end
+  if ctx.o16 then text = "o16 "..text; ctx.o16 = false end
+  if ctx.a32 then text = "a32 "..text; ctx.a32 = false end
+  if ctx.rep then text = ctx.rep.." "..text; ctx.rep = false end
+  if ctx.rex then
+    local t = (ctx.rexw and "w" or "")..(ctx.rexr and "r" or "")..
+	      (ctx.rexx and "x" or "")..(ctx.rexb and "b" or "")..
+	      (ctx.vexl and "l" or "")
+    if ctx.vexv and ctx.vexv ~= 0 then t = t.."v"..ctx.vexv end
+    if t ~= "" then text = ctx.rex.."."..t.." "..gsub(text, "^ ", "")
+    elseif ctx.rex == "vex" then text = gsub("v"..text, "^v ", "") end
+    ctx.rexw = false; ctx.rexr = false; ctx.rexx = false; ctx.rexb = false
+    ctx.rex = false; ctx.vexl = false; ctx.vexv = false
+  end
+  if ctx.seg then
+    local text2, n = gsub(text, "%[", "["..ctx.seg..":")
+    if n == 0 then text = ctx.seg.." "..text else text = text2 end
+    ctx.seg = false
+  end
+  if ctx.lock then text = "lock "..text; ctx.lock = false end
+  local imm = ctx.imm
+  if imm then
+    local sym = ctx.symtab[imm]
+    if sym then text = text.."\t->"..sym end
+  end
+  ctx.out(format("%08x  %s%s\n", ctx.addr+ctx.start, hex, text))
+  ctx.mrm = false
+  ctx.vexv = false
+  ctx.start = pos
+  ctx.imm = nil
+end
+
+-- Clear all prefix flags.
+local function clearprefixes(ctx)
+  ctx.o16 = false; ctx.seg = false; ctx.lock = false; ctx.rep = false
+  ctx.rexw = false; ctx.rexr = false; ctx.rexx = false; ctx.rexb = false
+  ctx.rex = false; ctx.a32 = false; ctx.vexl = false
+end
+
+-- Fallback for incomplete opcodes at the end.
+local function incomplete(ctx)
+  ctx.pos = ctx.stop+1
+  clearprefixes(ctx)
+  return putop(ctx, "(incomplete)")
+end
+
+-- Fallback for unknown opcodes.
+local function unknown(ctx)
+  clearprefixes(ctx)
+  return putop(ctx, "(unknown)")
+end
+
+-- Return an immediate of the specified size.
+local function getimm(ctx, pos, n)
+  if pos+n-1 > ctx.stop then return incomplete(ctx) end
+  local code = ctx.code
+  if n == 1 then
+    local b1 = byte(code, pos, pos)
+    return b1
+  elseif n == 2 then
+    local b1, b2 = byte(code, pos, pos+1)
+    return b1+b2*256
+  else
+    local b1, b2, b3, b4 = byte(code, pos, pos+3)
+    local imm = b1+b2*256+b3*65536+b4*16777216
+    ctx.imm = imm
+    return imm
+  end
+end
+
+-- Process pattern string and generate the operands.
+local function putpat(ctx, name, pat)
+  local operands, regs, sz, mode, sp, rm, sc, rx, sdisp
+  local code, pos, stop, vexl = ctx.code, ctx.pos, ctx.stop, ctx.vexl
+
+  -- Chars used: 1DFGHIMPQRSTUVWXYabcdfgijlmoprstuvwxyz
+  for p in gmatch(pat, ".") do
+    local x = nil
+    if p == "V" or p == "U" then
+      if ctx.rexw then sz = "Q"; ctx.rexw = false
+      elseif ctx.o16 then sz = "W"; ctx.o16 = false
+      elseif p == "U" and ctx.x64 then sz = "Q"
+      else sz = "D" end
+      regs = map_regs[sz]
+    elseif p == "T" then
+      if ctx.rexw then sz = "Q"; ctx.rexw = false else sz = "D" end
+      regs = map_regs[sz]
+    elseif p == "B" then
+      sz = "B"
+      regs = ctx.rex and map_regs.B64 or map_regs.B
+    elseif match(p, "[WDQMXYFG]") then
+      sz = p
+      if sz == "X" and vexl then sz = "Y"; ctx.vexl = false end
+      regs = map_regs[sz]
+    elseif p == "P" then
+      sz = ctx.o16 and "X" or "M"; ctx.o16 = false
+      if sz == "X" and vexl then sz = "Y"; ctx.vexl = false end
+      regs = map_regs[sz]
+    elseif p == "H" then
+      name = name..(ctx.rexw and "d" or "s")
+      ctx.rexw = false
+    elseif p == "S" then
+      name = name..lower(sz)
+    elseif p == "s" then
+      local imm = getimm(ctx, pos, 1); if not imm then return end
+      x = imm <= 127 and format("+0x%02x", imm)
+		     or format("-0x%02x", 256-imm)
+      pos = pos+1
+    elseif p == "u" then
+      local imm = getimm(ctx, pos, 1); if not imm then return end
+      x = format("0x%02x", imm)
+      pos = pos+1
+    elseif p == "b" then
+      local imm = getimm(ctx, pos, 1); if not imm then return end
+      x = regs[imm/16+1]
+      pos = pos+1
+    elseif p == "w" then
+      local imm = getimm(ctx, pos, 2); if not imm then return end
+      x = format("0x%x", imm)
+      pos = pos+2
+    elseif p == "o" then -- [offset]
+      if ctx.x64 then
+	local imm1 = getimm(ctx, pos, 4); if not imm1 then return end
+	local imm2 = getimm(ctx, pos+4, 4); if not imm2 then return end
+	x = format("[0x%08x%08x]", imm2, imm1)
+	pos = pos+8
+      else
+	local imm = getimm(ctx, pos, 4); if not imm then return end
+	x = format("[0x%08x]", imm)
+	pos = pos+4
+      end
+    elseif p == "i" or p == "I" then
+      local n = map_sz2n[sz]
+      if n == 8 and ctx.x64 and p == "I" then
+	local imm1 = getimm(ctx, pos, 4); if not imm1 then return end
+	local imm2 = getimm(ctx, pos+4, 4); if not imm2 then return end
+	x = format("0x%08x%08x", imm2, imm1)
+      else
+	if n == 8 then n = 4 end
+	local imm = getimm(ctx, pos, n); if not imm then return end
+	if sz == "Q" and (imm < 0 or imm > 0x7fffffff) then
+	  imm = (0xffffffff+1)-imm
+	  x = format(imm > 65535 and "-0x%08x" or "-0x%x", imm)
+	else
+	  x = format(imm > 65535 and "0x%08x" or "0x%x", imm)
+	end
+      end
+      pos = pos+n
+    elseif p == "j" then
+      local n = map_sz2n[sz]
+      if n == 8 then n = 4 end
+      local imm = getimm(ctx, pos, n); if not imm then return end
+      if sz == "B" and imm > 127 then imm = imm-256
+      elseif imm > 2147483647 then imm = imm-4294967296 end
+      pos = pos+n
+      imm = imm + pos + ctx.addr
+      if imm > 4294967295 and not ctx.x64 then imm = imm-4294967296 end
+      ctx.imm = imm
+      if sz == "W" then
+	x = format("word 0x%04x", imm%65536)
+      elseif ctx.x64 then
+	local lo = imm % 0x1000000
+	x = format("0x%02x%06x", (imm-lo) / 0x1000000, lo)
+      else
+	x = "0x"..tohex(imm)
+      end
+    elseif p == "R" then
+      local r = byte(code, pos-1, pos-1)%8
+      if ctx.rexb then r = r + 8; ctx.rexb = false end
+      x = regs[r+1]
+    elseif p == "a" then x = regs[1]
+    elseif p == "c" then x = "cl"
+    elseif p == "d" then x = "dx"
+    elseif p == "1" then x = "1"
+    else
+      if not mode then
+	mode = ctx.mrm
+	if not mode then
+	  if pos > stop then return incomplete(ctx) end
+	  mode = byte(code, pos, pos)
+	  pos = pos+1
+	end
+	rm = mode%8; mode = (mode-rm)/8
+	sp = mode%8; mode = (mode-sp)/8
+	sdisp = ""
+	if mode < 3 then
+	  if rm == 4 then
+	    if pos > stop then return incomplete(ctx) end
+	    sc = byte(code, pos, pos)
+	    pos = pos+1
+	    rm = sc%8; sc = (sc-rm)/8
+	    rx = sc%8; sc = (sc-rx)/8
+	    if ctx.rexx then rx = rx + 8; ctx.rexx = false end
+	    if rx == 4 then rx = nil end
+	  end
+	  if mode > 0 or rm == 5 then
+	    local dsz = mode
+	    if dsz ~= 1 then dsz = 4 end
+	    local disp = getimm(ctx, pos, dsz); if not disp then return end
+	    if mode == 0 then rm = nil end
+	    if rm or rx or (not sc and ctx.x64 and not ctx.a32) then
+	      if dsz == 1 and disp > 127 then
+		sdisp = format("-0x%x", 256-disp)
+	      elseif disp >= 0 and disp <= 0x7fffffff then
+		sdisp = format("+0x%x", disp)
+	      else
+		sdisp = format("-0x%x", (0xffffffff+1)-disp)
+	      end
+	    else
+	      sdisp = format(ctx.x64 and not ctx.a32 and
+		not (disp >= 0 and disp <= 0x7fffffff)
+		and "0xffffffff%08x" or "0x%08x", disp)
+	    end
+	    pos = pos+dsz
+	  end
+	end
+	if rm and ctx.rexb then rm = rm + 8; ctx.rexb = false end
+	if ctx.rexr then sp = sp + 8; ctx.rexr = false end
+      end
+      if p == "m" then
+	if mode == 3 then x = regs[rm+1]
+	else
+	  local aregs = ctx.a32 and map_regs.D or ctx.aregs
+	  local srm, srx = "", ""
+	  if rm then srm = aregs[rm+1]
+	  elseif not sc and ctx.x64 and not ctx.a32 then srm = "rip" end
+	  ctx.a32 = false
+	  if rx then
+	    if rm then srm = srm.."+" end
+	    srx = aregs[rx+1]
+	    if sc > 0 then srx = srx.."*"..(2^sc) end
+	  end
+	  x = format("[%s%s%s]", srm, srx, sdisp)
+	end
+	if mode < 3 and
+	   (not match(pat, "[aRrgp]") or match(pat, "t")) then -- Yuck.
+	  x = map_sz2prefix[sz].." "..x
+	end
+      elseif p == "r" then x = regs[sp+1]
+      elseif p == "g" then x = map_segregs[sp+1]
+      elseif p == "p" then -- Suppress prefix.
+      elseif p == "f" then x = "st"..rm
+      elseif p == "x" then
+	if sp == 0 and ctx.lock and not ctx.x64 then
+	  x = "CR8"; ctx.lock = false
+	else
+	  x = "CR"..sp
+	end
+      elseif p == "v" then
+	if ctx.vexv then
+	  x = regs[ctx.vexv+1]; ctx.vexv = false
+	end
+      elseif p == "y" then x = "DR"..sp
+      elseif p == "z" then x = "TR"..sp
+      elseif p == "l" then vexl = false
+      elseif p == "t" then
+      else
+	error("bad pattern `"..pat.."'")
+      end
+    end
+    if x then operands = operands and operands..", "..x or x end
+  end
+  ctx.pos = pos
+  return putop(ctx, name, operands)
+end
+
+-- Forward declaration.
+local map_act
+
+-- Fetch and cache MRM byte.
+local function getmrm(ctx)
+  local mrm = ctx.mrm
+  if not mrm then
+    local pos = ctx.pos
+    if pos > ctx.stop then return nil end
+    mrm = byte(ctx.code, pos, pos)
+    ctx.pos = pos+1
+    ctx.mrm = mrm
+  end
+  return mrm
+end
+
+-- Dispatch to handler depending on pattern.
+local function dispatch(ctx, opat, patgrp)
+  if not opat then return unknown(ctx) end
+  if match(opat, "%|") then -- MMX/SSE variants depending on prefix.
+    local p
+    if ctx.rep then
+      p = ctx.rep=="rep" and "%|([^%|]*)" or "%|[^%|]*%|[^%|]*%|([^%|]*)"
+      ctx.rep = false
+    elseif ctx.o16 then p = "%|[^%|]*%|([^%|]*)"; ctx.o16 = false
+    else p = "^[^%|]*" end
+    opat = match(opat, p)
+    if not opat then return unknown(ctx) end
+--    ctx.rep = false; ctx.o16 = false
+    --XXX fails for 66 f2 0f 38 f1 06  crc32 eax,WORD PTR [esi]
+    --XXX remove in branches?
+  end
+  if match(opat, "%$") then -- reg$mem variants.
+    local mrm = getmrm(ctx); if not mrm then return incomplete(ctx) end
+    opat = match(opat, mrm >= 192 and "^[^%$]*" or "%$(.*)")
+    if opat == "" then return unknown(ctx) end
+  end
+  if opat == "" then return unknown(ctx) end
+  local name, pat = match(opat, "^([a-z0-9 ]*)(.*)")
+  if pat == "" and patgrp then pat = patgrp end
+  return map_act[sub(pat, 1, 1)](ctx, name, pat)
+end
+
+-- Get a pattern from an opcode map and dispatch to handler.
+local function dispatchmap(ctx, opcmap)
+  local pos = ctx.pos
+  local opat = opcmap[byte(ctx.code, pos, pos)]
+  pos = pos + 1
+  ctx.pos = pos
+  return dispatch(ctx, opat)
+end
+
+-- Map for action codes. The key is the first char after the name.
+map_act = {
+  -- Simple opcodes without operands.
+  [""] = function(ctx, name, pat)
+    return putop(ctx, name)
+  end,
+
+  -- Operand size chars fall right through.
+  B = putpat, W = putpat, D = putpat, Q = putpat,
+  V = putpat, U = putpat, T = putpat,
+  M = putpat, X = putpat, P = putpat,
+  F = putpat, G = putpat, Y = putpat,
+  H = putpat,
+
+  -- Collect prefixes.
+  [":"] = function(ctx, name, pat)
+    ctx[pat == ":" and name or sub(pat, 2)] = name
+    if ctx.pos - ctx.start > 5 then return unknown(ctx) end -- Limit #prefixes.
+  end,
+
+  -- Chain to special handler specified by name.
+  ["*"] = function(ctx, name, pat)
+    return map_act[name](ctx, name, sub(pat, 2))
+  end,
+
+  -- Use named subtable for opcode group.
+  ["!"] = function(ctx, name, pat)
+    local mrm = getmrm(ctx); if not mrm then return incomplete(ctx) end
+    return dispatch(ctx, map_opcgroup[name][((mrm-(mrm%8))/8)%8+1], sub(pat, 2))
+  end,
+
+  -- o16,o32[,o64] variants.
+  sz = function(ctx, name, pat)
+    if ctx.o16 then ctx.o16 = false
+    else
+      pat = match(pat, ",(.*)")
+      if ctx.rexw then
+	local p = match(pat, ",(.*)")
+	if p then pat = p; ctx.rexw = false end
+      end
+    end
+    pat = match(pat, "^[^,]*")
+    return dispatch(ctx, pat)
+  end,
+
+  -- Two-byte opcode dispatch.
+  opc2 = function(ctx, name, pat)
+    return dispatchmap(ctx, map_opc2)
+  end,
+
+  -- Three-byte opcode dispatch.
+  opc3 = function(ctx, name, pat)
+    return dispatchmap(ctx, map_opc3[pat])
+  end,
+
+  -- VMX/SVM dispatch.
+  vm = function(ctx, name, pat)
+    return dispatch(ctx, map_opcvm[ctx.mrm])
+  end,
+
+  -- Floating point opcode dispatch.
+  fp = function(ctx, name, pat)
+    local mrm = getmrm(ctx); if not mrm then return incomplete(ctx) end
+    local rm = mrm%8
+    local idx = pat*8 + ((mrm-rm)/8)%8
+    if mrm >= 192 then idx = idx + 64 end
+    local opat = map_opcfp[idx]
+    if type(opat) == "table" then opat = opat[rm+1] end
+    return dispatch(ctx, opat)
+  end,
+
+  -- REX prefix.
+  rex = function(ctx, name, pat)
+    if ctx.rex then return unknown(ctx) end -- Only 1 REX or VEX prefix allowed.
+    for p in gmatch(pat, ".") do ctx["rex"..p] = true end
+    ctx.rex = "rex"
+  end,
+
+  -- VEX prefix.
+  vex = function(ctx, name, pat)
+    if ctx.rex then return unknown(ctx) end -- Only 1 REX or VEX prefix allowed.
+    ctx.rex = "vex"
+    local pos = ctx.pos
+    if ctx.mrm then
+      ctx.mrm = nil
+      pos = pos-1
+    end
+    local b = byte(ctx.code, pos, pos)
+    if not b then return incomplete(ctx) end
+    pos = pos+1
+    if b < 128 then ctx.rexr = true end
+    local m = 1
+    if pat == "3" then
+      m = b%32; b = (b-m)/32
+      local nb = b%2; b = (b-nb)/2
+      if nb == 0 then ctx.rexb = true end
+      local nx = b%2
+      if nx == 0 then ctx.rexx = true end
+      b = byte(ctx.code, pos, pos)
+      if not b then return incomplete(ctx) end
+      pos = pos+1
+      if b >= 128 then ctx.rexw = true end
+    end
+    ctx.pos = pos
+    local map
+    if m == 1 then map = map_opc2
+    elseif m == 2 then map = map_opc3["38"]
+    elseif m == 3 then map = map_opc3["3a"]
+    else return unknown(ctx) end
+    local p = b%4; b = (b-p)/4
+    if p == 1 then ctx.o16 = "o16"
+    elseif p == 2 then ctx.rep = "rep"
+    elseif p == 3 then ctx.rep = "repne" end
+    local l = b%2; b = (b-l)/2
+    if l ~= 0 then ctx.vexl = true end
+    ctx.vexv = (-1-b)%16
+    return dispatchmap(ctx, map)
+  end,
+
+  -- Special case for nop with REX prefix.
+  nop = function(ctx, name, pat)
+    return dispatch(ctx, ctx.rex and pat or "nop")
+  end,
+
+  -- Special case for 0F 77.
+  emms = function(ctx, name, pat)
+    if ctx.rex ~= "vex" then
+      return putop(ctx, "emms")
+    elseif ctx.vexl then
+      ctx.vexl = false
+      return putop(ctx, "zeroall")
+    else
+      return putop(ctx, "zeroupper")
+    end
+  end,
+}
+
+------------------------------------------------------------------------------
+
+-- Disassemble a block of code.
+local function disass_block(ctx, ofs, len)
+  if not ofs then ofs = 0 end
+  local stop = len and ofs+len or #ctx.code
+  ofs = ofs + 1
+  ctx.start = ofs
+  ctx.pos = ofs
+  ctx.stop = stop
+  ctx.imm = nil
+  ctx.mrm = false
+  clearprefixes(ctx)
+  while ctx.pos <= stop do dispatchmap(ctx, ctx.map1) end
+  if ctx.pos ~= ctx.start then incomplete(ctx) end
+end
+
+-- Extended API: create a disassembler context. Then call ctx:disass(ofs, len).
+local function create(code, addr, out)
+  local ctx = {}
+  ctx.code = code
+  ctx.addr = (addr or 0) - 1
+  ctx.out = out or io.write
+  ctx.symtab = {}
+  ctx.disass = disass_block
+  ctx.hexdump = 16
+  ctx.x64 = false
+  ctx.map1 = map_opc1_32
+  ctx.aregs = map_regs.D
+  return ctx
+end
+
+local function create64(code, addr, out)
+  local ctx = create(code, addr, out)
+  ctx.x64 = true
+  ctx.map1 = map_opc1_64
+  ctx.aregs = map_regs.Q
+  return ctx
+end
+
+-- Simple API: disassemble code (a string) at address and output via out.
+local function disass(code, addr, out)
+  create(code, addr, out):disass()
+end
+
+local function disass64(code, addr, out)
+  create64(code, addr, out):disass()
+end
+
+-- Return register name for RID.
+local function regname(r)
+  if r < 8 then return map_regs.D[r+1] end
+  return map_regs.X[r-7]
+end
+
+local function regname64(r)
+  if r < 16 then return map_regs.Q[r+1] end
+  return map_regs.X[r-15]
+end
+
+-- Public module functions.
+return {
+  create = create,
+  create64 = create64,
+  disass = disass,
+  disass64 = disass64,
+  regname = regname,
+  regname64 = regname64
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/dump.lua b/libs/luajit-cmake/luajit/src/jit/dump.lua
new file mode 100644
index 0000000..18e7a4b
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/dump.lua
@@ -0,0 +1,726 @@
+----------------------------------------------------------------------------
+-- LuaJIT compiler dump module.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+--
+-- This module can be used to debug the JIT compiler itself. It dumps the
+-- code representations and structures used in various compiler stages.
+--
+-- Example usage:
+--
+--   luajit -jdump -e "local x=0; for i=1,1e6 do x=x+i end; print(x)"
+--   luajit -jdump=im -e "for i=1,1000 do for j=1,1000 do end end" | less -R
+--   luajit -jdump=is myapp.lua | less -R
+--   luajit -jdump=-b myapp.lua
+--   luajit -jdump=+aH,myapp.html myapp.lua
+--   luajit -jdump=ixT,myapp.dump myapp.lua
+--
+-- The first argument specifies the dump mode. The second argument gives
+-- the output file name. Default output is to stdout, unless the environment
+-- variable LUAJIT_DUMPFILE is set. The file is overwritten every time the
+-- module is started.
+--
+-- Different features can be turned on or off with the dump mode. If the
+-- mode starts with a '+', the following features are added to the default
+-- set of features; a '-' removes them. Otherwise the features are replaced.
+--
+-- The following dump features are available (* marks the default):
+--
+--  * t  Print a line for each started, ended or aborted trace (see also -jv).
+--  * b  Dump the traced bytecode.
+--  * i  Dump the IR (intermediate representation).
+--    r  Augment the IR with register/stack slots.
+--    s  Dump the snapshot map.
+--  * m  Dump the generated machine code.
+--    x  Print each taken trace exit.
+--    X  Print each taken trace exit and the contents of all registers.
+--    a  Print the IR of aborted traces, too.
+--
+-- The output format can be set with the following characters:
+--
+--    T  Plain text output.
+--    A  ANSI-colored text output
+--    H  Colorized HTML + CSS output.
+--
+-- The default output format is plain text. It's set to ANSI-colored text
+-- if the COLORTERM variable is set. Note: this is independent of any output
+-- redirection, which is actually considered a feature.
+--
+-- You probably want to use less -R to enjoy viewing ANSI-colored text from
+-- a pipe or a file. Add this to your ~/.bashrc: export LESS="-R"
+--
+------------------------------------------------------------------------------
+
+-- Cache some library functions and objects.
+local jit = require("jit")
+assert(jit.version_num == 20100, "LuaJIT core/library version mismatch")
+local jutil = require("jit.util")
+local vmdef = require("jit.vmdef")
+local funcinfo, funcbc = jutil.funcinfo, jutil.funcbc
+local traceinfo, traceir, tracek = jutil.traceinfo, jutil.traceir, jutil.tracek
+local tracemc, tracesnap = jutil.tracemc, jutil.tracesnap
+local traceexitstub, ircalladdr = jutil.traceexitstub, jutil.ircalladdr
+local bit = require("bit")
+local band, shr, tohex = bit.band, bit.rshift, bit.tohex
+local sub, gsub, format = string.sub, string.gsub, string.format
+local byte, rep = string.byte, string.rep
+local type, tostring = type, tostring
+local stdout, stderr = io.stdout, io.stderr
+
+-- Load other modules on-demand.
+local bcline, disass
+
+-- Active flag, output file handle and dump mode.
+local active, out, dumpmode
+
+------------------------------------------------------------------------------
+
+local symtabmt = { __index = false }
+local symtab = {}
+local nexitsym = 0
+
+-- Fill nested symbol table with per-trace exit stub addresses.
+local function fillsymtab_tr(tr, nexit)
+  local t = {}
+  symtabmt.__index = t
+  if jit.arch:sub(1, 4) == "mips" then
+    t[traceexitstub(tr, 0)] = "exit"
+    return
+  end
+  for i=0,nexit-1 do
+    local addr = traceexitstub(tr, i)
+    if addr < 0 then addr = addr + 2^32 end
+    t[addr] = tostring(i)
+  end
+  local addr = traceexitstub(tr, nexit)
+  if addr then t[addr] = "stack_check" end
+end
+
+-- Fill symbol table with trace exit stub addresses.
+local function fillsymtab(tr, nexit)
+  local t = symtab
+  if nexitsym == 0 then
+    local maskaddr = jit.arch == "arm" and -2
+    local ircall = vmdef.ircall
+    for i=0,#ircall do
+      local addr = ircalladdr(i)
+      if addr ~= 0 then
+	if maskaddr then addr = band(addr, maskaddr) end
+	if addr < 0 then addr = addr + 2^32 end
+	t[addr] = ircall[i]
+      end
+    end
+  end
+  if nexitsym == 1000000 then -- Per-trace exit stubs.
+    fillsymtab_tr(tr, nexit)
+  elseif nexit > nexitsym then -- Shared exit stubs.
+    for i=nexitsym,nexit-1 do
+      local addr = traceexitstub(i)
+      if addr == nil then -- Fall back to per-trace exit stubs.
+	fillsymtab_tr(tr, nexit)
+	setmetatable(symtab, symtabmt)
+	nexit = 1000000
+	break
+      end
+      if addr < 0 then addr = addr + 2^32 end
+      t[addr] = tostring(i)
+    end
+    nexitsym = nexit
+  end
+  return t
+end
+
+local function dumpwrite(s)
+  out:write(s)
+end
+
+-- Disassemble machine code.
+local function dump_mcode(tr)
+  local info = traceinfo(tr)
+  if not info then return end
+  local mcode, addr, loop = tracemc(tr)
+  if not mcode then return end
+  if not disass then disass = require("jit.dis_"..jit.arch) end
+  if addr < 0 then addr = addr + 2^32 end
+  out:write("---- TRACE ", tr, " mcode ", #mcode, "\n")
+  local ctx = disass.create(mcode, addr, dumpwrite)
+  ctx.hexdump = 0
+  ctx.symtab = fillsymtab(tr, info.nexit)
+  if loop ~= 0 then
+    symtab[addr+loop] = "LOOP"
+    ctx:disass(0, loop)
+    out:write("->LOOP:\n")
+    ctx:disass(loop, #mcode-loop)
+    symtab[addr+loop] = nil
+  else
+    ctx:disass(0, #mcode)
+  end
+end
+
+------------------------------------------------------------------------------
+
+local irtype_text = {
+  [0] = "nil",
+  "fal",
+  "tru",
+  "lud",
+  "str",
+  "p32",
+  "thr",
+  "pro",
+  "fun",
+  "p64",
+  "cdt",
+  "tab",
+  "udt",
+  "flt",
+  "num",
+  "i8 ",
+  "u8 ",
+  "i16",
+  "u16",
+  "int",
+  "u32",
+  "i64",
+  "u64",
+  "sfp",
+}
+
+local colortype_ansi = {
+  [0] = "%s",
+  "%s",
+  "%s",
+  "\027[36m%s\027[m",
+  "\027[32m%s\027[m",
+  "%s",
+  "\027[1m%s\027[m",
+  "%s",
+  "\027[1m%s\027[m",
+  "%s",
+  "\027[33m%s\027[m",
+  "\027[31m%s\027[m",
+  "\027[36m%s\027[m",
+  "\027[34m%s\027[m",
+  "\027[34m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+  "\027[35m%s\027[m",
+}
+
+local function colorize_text(s)
+  return s
+end
+
+local function colorize_ansi(s, t, extra)
+  local out = format(colortype_ansi[t], s)
+  if extra then out = "\027[3m"..out end
+  return out
+end
+
+local irtype_ansi = setmetatable({},
+  { __index = function(tab, t)
+      local s = colorize_ansi(irtype_text[t], t); tab[t] = s; return s; end })
+
+local html_escape = { ["<"] = "&lt;", [">"] = "&gt;", ["&"] = "&amp;", }
+
+local function colorize_html(s, t, extra)
+  s = gsub(s, "[<>&]", html_escape)
+  return format('<span class="irt_%s%s">%s</span>',
+		irtype_text[t], extra and " irt_extra" or "", s)
+end
+
+local irtype_html = setmetatable({},
+  { __index = function(tab, t)
+      local s = colorize_html(irtype_text[t], t); tab[t] = s; return s; end })
+
+local header_html = [[
+<style type="text/css">
+background { background: #ffffff; color: #000000; }
+pre.ljdump {
+font-size: 10pt;
+background: #f0f4ff;
+color: #000000;
+border: 1px solid #bfcfff;
+padding: 0.5em;
+margin-left: 2em;
+margin-right: 2em;
+}
+span.irt_str { color: #00a000; }
+span.irt_thr, span.irt_fun { color: #404040; font-weight: bold; }
+span.irt_tab { color: #c00000; }
+span.irt_udt, span.irt_lud { color: #00c0c0; }
+span.irt_num { color: #4040c0; }
+span.irt_int, span.irt_i8, span.irt_u8, span.irt_i16, span.irt_u16 { color: #b040b0; }
+span.irt_extra { font-style: italic; }
+</style>
+]]
+
+local colorize, irtype
+
+-- Lookup tables to convert some literals into names.
+local litname = {
+  ["SLOAD "] = setmetatable({}, { __index = function(t, mode)
+    local s = ""
+    if band(mode, 1) ~= 0 then s = s.."P" end
+    if band(mode, 2) ~= 0 then s = s.."F" end
+    if band(mode, 4) ~= 0 then s = s.."T" end
+    if band(mode, 8) ~= 0 then s = s.."C" end
+    if band(mode, 16) ~= 0 then s = s.."R" end
+    if band(mode, 32) ~= 0 then s = s.."I" end
+    if band(mode, 64) ~= 0 then s = s.."K" end
+    t[mode] = s
+    return s
+  end}),
+  ["XLOAD "] = { [0] = "", "R", "V", "RV", "U", "RU", "VU", "RVU", },
+  ["CONV  "] = setmetatable({}, { __index = function(t, mode)
+    local s = irtype[band(mode, 31)]
+    s = irtype[band(shr(mode, 5), 31)].."."..s
+    if band(mode, 0x800) ~= 0 then s = s.." sext" end
+    local c = shr(mode, 12)
+    if c == 1 then s = s.." none"
+    elseif c == 2 then s = s.." index"
+    elseif c == 3 then s = s.." check" end
+    t[mode] = s
+    return s
+  end}),
+  ["FLOAD "] = vmdef.irfield,
+  ["FREF  "] = vmdef.irfield,
+  ["FPMATH"] = vmdef.irfpm,
+  ["TMPREF"] = { [0] = "", "IN", "OUT", "INOUT", "", "", "OUT2", "INOUT2" },
+  ["BUFHDR"] = { [0] = "RESET", "APPEND", "WRITE" },
+  ["TOSTR "] = { [0] = "INT", "NUM", "CHAR" },
+}
+
+local function ctlsub(c)
+  if c == "\n" then return "\\n"
+  elseif c == "\r" then return "\\r"
+  elseif c == "\t" then return "\\t"
+  else return format("\\%03d", byte(c))
+  end
+end
+
+local function fmtfunc(func, pc)
+  local fi = funcinfo(func, pc)
+  if fi.loc then
+    return fi.loc
+  elseif fi.ffid then
+    return vmdef.ffnames[fi.ffid]
+  elseif fi.addr then
+    return format("C:%x", fi.addr)
+  else
+    return "(?)"
+  end
+end
+
+local function formatk(tr, idx, sn)
+  local k, t, slot = tracek(tr, idx)
+  local tn = type(k)
+  local s
+  if tn == "number" then
+    if t < 12 then
+      s = k == 0 and "NULL" or format("[0x%08x]", k)
+    elseif band(sn or 0, 0x30000) ~= 0 then
+      s = band(sn, 0x20000) ~= 0 and "contpc" or "ftsz"
+    elseif k == 2^52+2^51 then
+      s = "bias"
+    else
+      s = format(0 < k and k < 0x1p-1026 and "%+a" or "%+.14g", k)
+    end
+  elseif tn == "string" then
+    s = format(#k > 20 and '"%.20s"~' or '"%s"', gsub(k, "%c", ctlsub))
+  elseif tn == "function" then
+    s = fmtfunc(k)
+  elseif tn == "table" then
+    s = format("{%p}", k)
+  elseif tn == "userdata" then
+    if t == 12 then
+      s = format("userdata:%p", k)
+    else
+      s = format("[%p]", k)
+      if s == "[NULL]" then s = "NULL" end
+    end
+  elseif t == 21 then -- int64_t
+    s = sub(tostring(k), 1, -3)
+    if sub(s, 1, 1) ~= "-" then s = "+"..s end
+  elseif sn == 0x1057fff then -- SNAP(1, SNAP_FRAME | SNAP_NORESTORE, REF_NIL)
+    return "----" -- Special case for LJ_FR2 slot 1.
+  else
+    s = tostring(k) -- For primitives.
+  end
+  s = colorize(format("%-4s", s), t, band(sn or 0, 0x100000) ~= 0)
+  if slot then
+    s = format("%s @%d", s, slot)
+  end
+  return s
+end
+
+local function printsnap(tr, snap)
+  local n = 2
+  for s=0,snap[1]-1 do
+    local sn = snap[n]
+    if shr(sn, 24) == s then
+      n = n + 1
+      local ref = band(sn, 0xffff) - 0x8000 -- REF_BIAS
+      if ref < 0 then
+	out:write(formatk(tr, ref, sn))
+      elseif band(sn, 0x80000) ~= 0 then -- SNAP_SOFTFPNUM
+	out:write(colorize(format("%04d/%04d", ref, ref+1), 14))
+      else
+	local m, ot, op1, op2 = traceir(tr, ref)
+	out:write(colorize(format("%04d", ref), band(ot, 31), band(sn, 0x100000) ~= 0))
+      end
+      out:write(band(sn, 0x10000) == 0 and " " or "|") -- SNAP_FRAME
+    else
+      out:write("---- ")
+    end
+  end
+  out:write("]\n")
+end
+
+-- Dump snapshots (not interleaved with IR).
+local function dump_snap(tr)
+  out:write("---- TRACE ", tr, " snapshots\n")
+  for i=0,1000000000 do
+    local snap = tracesnap(tr, i)
+    if not snap then break end
+    out:write(format("#%-3d %04d [ ", i, snap[0]))
+    printsnap(tr, snap)
+  end
+end
+
+-- Return a register name or stack slot for a rid/sp location.
+local function ridsp_name(ridsp, ins)
+  if not disass then disass = require("jit.dis_"..jit.arch) end
+  local rid, slot = band(ridsp, 0xff), shr(ridsp, 8)
+  if rid == 253 or rid == 254 then
+    return (slot == 0 or slot == 255) and " {sink" or format(" {%04d", ins-slot)
+  end
+  if ridsp > 255 then return format("[%x]", slot*4) end
+  if rid < 128 then return disass.regname(rid) end
+  return ""
+end
+
+-- Dump CALL* function ref and return optional ctype.
+local function dumpcallfunc(tr, ins)
+  local ctype
+  if ins > 0 then
+    local m, ot, op1, op2 = traceir(tr, ins)
+    if band(ot, 31) == 0 then -- nil type means CARG(func, ctype).
+      ins = op1
+      ctype = formatk(tr, op2)
+    end
+  end
+  if ins < 0 then
+    out:write(format("[0x%x](", tonumber((tracek(tr, ins)))))
+  else
+    out:write(format("%04d (", ins))
+  end
+  return ctype
+end
+
+-- Recursively gather CALL* args and dump them.
+local function dumpcallargs(tr, ins)
+  if ins < 0 then
+    out:write(formatk(tr, ins))
+  else
+    local m, ot, op1, op2 = traceir(tr, ins)
+    local oidx = 6*shr(ot, 8)
+    local op = sub(vmdef.irnames, oidx+1, oidx+6)
+    if op == "CARG  " then
+      dumpcallargs(tr, op1)
+      if op2 < 0 then
+	out:write(" ", formatk(tr, op2))
+      else
+	out:write(" ", format("%04d", op2))
+      end
+    else
+      out:write(format("%04d", ins))
+    end
+  end
+end
+
+-- Dump IR and interleaved snapshots.
+local function dump_ir(tr, dumpsnap, dumpreg)
+  local info = traceinfo(tr)
+  if not info then return end
+  local nins = info.nins
+  out:write("---- TRACE ", tr, " IR\n")
+  local irnames = vmdef.irnames
+  local snapref = 65536
+  local snap, snapno
+  if dumpsnap then
+    snap = tracesnap(tr, 0)
+    snapref = snap[0]
+    snapno = 0
+  end
+  for ins=1,nins do
+    if ins >= snapref then
+      if dumpreg then
+	out:write(format("....              SNAP   #%-3d [ ", snapno))
+      else
+	out:write(format("....        SNAP   #%-3d [ ", snapno))
+      end
+      printsnap(tr, snap)
+      snapno = snapno + 1
+      snap = tracesnap(tr, snapno)
+      snapref = snap and snap[0] or 65536
+    end
+    local m, ot, op1, op2, ridsp = traceir(tr, ins)
+    local oidx, t = 6*shr(ot, 8), band(ot, 31)
+    local op = sub(irnames, oidx+1, oidx+6)
+    if op == "LOOP  " then
+      if dumpreg then
+	out:write(format("%04d ------------ LOOP ------------\n", ins))
+      else
+	out:write(format("%04d ------ LOOP ------------\n", ins))
+      end
+    elseif op ~= "NOP   " and op ~= "CARG  " and
+	   (dumpreg or op ~= "RENAME") then
+      local rid = band(ridsp, 255)
+      if dumpreg then
+	out:write(format("%04d %-6s", ins, ridsp_name(ridsp, ins)))
+      else
+	out:write(format("%04d ", ins))
+      end
+      out:write(format("%s%s %s %s ",
+		       (rid == 254 or rid == 253) and "}" or
+		       (band(ot, 128) == 0 and " " or ">"),
+		       band(ot, 64) == 0 and " " or "+",
+		       irtype[t], op))
+      local m1, m2 = band(m, 3), band(m, 3*4)
+      if sub(op, 1, 4) == "CALL" then
+	local ctype
+	if m2 == 1*4 then -- op2 == IRMlit
+	  out:write(format("%-10s  (", vmdef.ircall[op2]))
+	else
+	  ctype = dumpcallfunc(tr, op2)
+	end
+	if op1 ~= -1 then dumpcallargs(tr, op1) end
+	out:write(")")
+	if ctype then out:write(" ctype ", ctype) end
+      elseif op == "CNEW  " and op2 == -1 then
+	out:write(formatk(tr, op1))
+      elseif m1 ~= 3 then -- op1 != IRMnone
+	if op1 < 0 then
+	  out:write(formatk(tr, op1))
+	else
+	  out:write(format(m1 == 0 and "%04d" or "#%-3d", op1))
+	end
+	if m2 ~= 3*4 then -- op2 != IRMnone
+	  if m2 == 1*4 then -- op2 == IRMlit
+	    local litn = litname[op]
+	    if litn and litn[op2] then
+	      out:write("  ", litn[op2])
+	    elseif op == "UREFO " or op == "UREFC " then
+	      out:write(format("  #%-3d", shr(op2, 8)))
+	    else
+	      out:write(format("  #%-3d", op2))
+	    end
+	  elseif op2 < 0 then
+	    out:write("  ", formatk(tr, op2))
+	  else
+	    out:write(format("  %04d", op2))
+	  end
+	end
+      end
+      out:write("\n")
+    end
+  end
+  if snap then
+    if dumpreg then
+      out:write(format("....              SNAP   #%-3d [ ", snapno))
+    else
+      out:write(format("....        SNAP   #%-3d [ ", snapno))
+    end
+    printsnap(tr, snap)
+  end
+end
+
+------------------------------------------------------------------------------
+
+local recprefix = ""
+local recdepth = 0
+
+-- Format trace error message.
+local function fmterr(err, info)
+  if type(err) == "number" then
+    if type(info) == "function" then info = fmtfunc(info) end
+    err = format(vmdef.traceerr[err], info)
+  end
+  return err
+end
+
+-- Dump trace states.
+local function dump_trace(what, tr, func, pc, otr, oex)
+  if what == "stop" or (what == "abort" and dumpmode.a) then
+    if dumpmode.i then dump_ir(tr, dumpmode.s, dumpmode.r and what == "stop")
+    elseif dumpmode.s then dump_snap(tr) end
+    if dumpmode.m then dump_mcode(tr) end
+  end
+  if what == "start" then
+    if dumpmode.H then out:write('<pre class="ljdump">\n') end
+    out:write("---- TRACE ", tr, " ", what)
+    if otr then out:write(" ", otr, "/", oex == -1 and "stitch" or oex) end
+    out:write(" ", fmtfunc(func, pc), "\n")
+  elseif what == "stop" or what == "abort" then
+    out:write("---- TRACE ", tr, " ", what)
+    if what == "abort" then
+      out:write(" ", fmtfunc(func, pc), " -- ", fmterr(otr, oex), "\n")
+    else
+      local info = traceinfo(tr)
+      local link, ltype = info.link, info.linktype
+      if link == tr or link == 0 then
+	out:write(" -> ", ltype, "\n")
+      elseif ltype == "root" then
+	out:write(" -> ", link, "\n")
+      else
+	out:write(" -> ", link, " ", ltype, "\n")
+      end
+    end
+    if dumpmode.H then out:write("</pre>\n\n") else out:write("\n") end
+  else
+    if what == "flush" then symtab, nexitsym = {}, 0 end
+    out:write("---- TRACE ", what, "\n\n")
+  end
+  out:flush()
+end
+
+-- Dump recorded bytecode.
+local function dump_record(tr, func, pc, depth)
+  if depth ~= recdepth then
+    recdepth = depth
+    recprefix = rep(" .", depth)
+  end
+  local line
+  if pc >= 0 then
+    line = bcline(func, pc, recprefix)
+    if dumpmode.H then line = gsub(line, "[<>&]", html_escape) end
+  else
+    line = "0000 "..recprefix.." FUNCC      \n"
+  end
+  if pc <= 0 then
+    out:write(sub(line, 1, -2), "         ; ", fmtfunc(func), "\n")
+  else
+    out:write(line)
+  end
+  if pc >= 0 and band(funcbc(func, pc), 0xff) < 16 then -- ORDER BC
+    out:write(bcline(func, pc+1, recprefix)) -- Write JMP for cond.
+  end
+end
+
+------------------------------------------------------------------------------
+
+local gpr64 = jit.arch:match("64")
+local fprmips32 = jit.arch == "mips" or jit.arch == "mipsel"
+
+-- Dump taken trace exits.
+local function dump_texit(tr, ex, ngpr, nfpr, ...)
+  out:write("---- TRACE ", tr, " exit ", ex, "\n")
+  if dumpmode.X then
+    local regs = {...}
+    if gpr64 then
+      for i=1,ngpr do
+	out:write(format(" %016x", regs[i]))
+	if i % 4 == 0 then out:write("\n") end
+      end
+    else
+      for i=1,ngpr do
+	out:write(" ", tohex(regs[i]))
+	if i % 8 == 0 then out:write("\n") end
+      end
+    end
+    if fprmips32 then
+      for i=1,nfpr,2 do
+	out:write(format(" %+17.14g", regs[ngpr+i]))
+	if i % 8 == 7 then out:write("\n") end
+      end
+    else
+      for i=1,nfpr do
+	out:write(format(" %+17.14g", regs[ngpr+i]))
+	if i % 4 == 0 then out:write("\n") end
+      end
+    end
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Detach dump handlers.
+local function dumpoff()
+  if active then
+    active = false
+    jit.attach(dump_texit)
+    jit.attach(dump_record)
+    jit.attach(dump_trace)
+    if out and out ~= stdout and out ~= stderr then out:close() end
+    out = nil
+  end
+end
+
+-- Open the output file and attach dump handlers.
+local function dumpon(opt, outfile)
+  if active then dumpoff() end
+
+  local term = os.getenv("TERM")
+  local colormode = (term and term:match("color") or os.getenv("COLORTERM")) and "A" or "T"
+  if opt then
+    opt = gsub(opt, "[TAH]", function(mode) colormode = mode; return ""; end)
+  end
+
+  local m = { t=true, b=true, i=true, m=true, }
+  if opt and opt ~= "" then
+    local o = sub(opt, 1, 1)
+    if o ~= "+" and o ~= "-" then m = {} end
+    for i=1,#opt do m[sub(opt, i, i)] = (o ~= "-") end
+  end
+  dumpmode = m
+
+  if m.t or m.b or m.i or m.s or m.m then
+    jit.attach(dump_trace, "trace")
+  end
+  if m.b then
+    jit.attach(dump_record, "record")
+    if not bcline then bcline = require("jit.bc").line end
+  end
+  if m.x or m.X then
+    jit.attach(dump_texit, "texit")
+  end
+
+  if not outfile then outfile = os.getenv("LUAJIT_DUMPFILE") end
+  if outfile then
+    out = outfile == "-" and stdout or assert(io.open(outfile, "w"))
+  else
+    out = stdout
+  end
+
+  m[colormode] = true
+  if colormode == "A" then
+    colorize = colorize_ansi
+    irtype = irtype_ansi
+  elseif colormode == "H" then
+    colorize = colorize_html
+    irtype = irtype_html
+    out:write(header_html)
+  else
+    colorize = colorize_text
+    irtype = irtype_text
+  end
+
+  active = true
+end
+
+-- Public module functions.
+return {
+  on = dumpon,
+  off = dumpoff,
+  start = dumpon -- For -j command line option.
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/p.lua b/libs/luajit-cmake/luajit/src/jit/p.lua
new file mode 100644
index 0000000..f225c31
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/p.lua
@@ -0,0 +1,312 @@
+----------------------------------------------------------------------------
+-- LuaJIT profiler.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+--
+-- This module is a simple command line interface to the built-in
+-- low-overhead profiler of LuaJIT.
+--
+-- The lower-level API of the profiler is accessible via the "jit.profile"
+-- module or the luaJIT_profile_* C API.
+--
+-- Example usage:
+--
+--   luajit -jp myapp.lua
+--   luajit -jp=s myapp.lua
+--   luajit -jp=-s myapp.lua
+--   luajit -jp=vl myapp.lua
+--   luajit -jp=G,profile.txt myapp.lua
+--
+-- The following dump features are available:
+--
+--   f  Stack dump: function name, otherwise module:line. Default mode.
+--   F  Stack dump: ditto, but always prepend module.
+--   l  Stack dump: module:line.
+--   <number> stack dump depth (callee < caller). Default: 1.
+--   -<number> Inverse stack dump depth (caller > callee).
+--   s  Split stack dump after first stack level. Implies abs(depth) >= 2.
+--   p  Show full path for module names.
+--   v  Show VM states. Can be combined with stack dumps, e.g. vf or fv.
+--   z  Show zones. Can be combined with stack dumps, e.g. zf or fz.
+--   r  Show raw sample counts. Default: show percentages.
+--   a  Annotate excerpts from source code files.
+--   A  Annotate complete source code files.
+--   G  Produce raw output suitable for graphical tools (e.g. flame graphs).
+--   m<number> Minimum sample percentage to be shown. Default: 3.
+--   i<number> Sampling interval in milliseconds. Default: 10.
+--
+----------------------------------------------------------------------------
+
+-- Cache some library functions and objects.
+local jit = require("jit")
+assert(jit.version_num == 20100, "LuaJIT core/library version mismatch")
+local profile = require("jit.profile")
+local vmdef = require("jit.vmdef")
+local math = math
+local pairs, ipairs, tonumber, floor = pairs, ipairs, tonumber, math.floor
+local sort, format = table.sort, string.format
+local stdout = io.stdout
+local zone -- Load jit.zone module on demand.
+
+-- Output file handle.
+local out
+
+------------------------------------------------------------------------------
+
+local prof_ud
+local prof_states, prof_split, prof_min, prof_raw, prof_fmt, prof_depth
+local prof_ann, prof_count1, prof_count2, prof_samples
+
+local map_vmmode = {
+  N = "Compiled",
+  I = "Interpreted",
+  C = "C code",
+  G = "Garbage Collector",
+  J = "JIT Compiler",
+}
+
+-- Profiler callback.
+local function prof_cb(th, samples, vmmode)
+  prof_samples = prof_samples + samples
+  local key_stack, key_stack2, key_state
+  -- Collect keys for sample.
+  if prof_states then
+    if prof_states == "v" then
+      key_state = map_vmmode[vmmode] or vmmode
+    else
+      key_state = zone:get() or "(none)"
+    end
+  end
+  if prof_fmt then
+    key_stack = profile.dumpstack(th, prof_fmt, prof_depth)
+    key_stack = key_stack:gsub("%[builtin#(%d+)%]", function(x)
+      return vmdef.ffnames[tonumber(x)]
+    end)
+    if prof_split == 2 then
+      local k1, k2 = key_stack:match("(.-) [<>] (.*)")
+      if k2 then key_stack, key_stack2 = k1, k2 end
+    elseif prof_split == 3 then
+      key_stack2 = profile.dumpstack(th, "l", 1)
+    end
+  end
+  -- Order keys.
+  local k1, k2
+  if prof_split == 1 then
+    if key_state then
+      k1 = key_state
+      if key_stack then k2 = key_stack end
+    end
+  elseif key_stack then
+    k1 = key_stack
+    if key_stack2 then k2 = key_stack2 elseif key_state then k2 = key_state end
+  end
+  -- Coalesce samples in one or two levels.
+  if k1 then
+    local t1 = prof_count1
+    t1[k1] = (t1[k1] or 0) + samples
+    if k2 then
+      local t2 = prof_count2
+      local t3 = t2[k1]
+      if not t3 then t3 = {}; t2[k1] = t3 end
+      t3[k2] = (t3[k2] or 0) + samples
+    end
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Show top N list.
+local function prof_top(count1, count2, samples, indent)
+  local t, n = {}, 0
+  for k in pairs(count1) do
+    n = n + 1
+    t[n] = k
+  end
+  sort(t, function(a, b) return count1[a] > count1[b] end)
+  for i=1,n do
+    local k = t[i]
+    local v = count1[k]
+    local pct = floor(v*100/samples + 0.5)
+    if pct < prof_min then break end
+    if not prof_raw then
+      out:write(format("%s%2d%%  %s\n", indent, pct, k))
+    elseif prof_raw == "r" then
+      out:write(format("%s%5d  %s\n", indent, v, k))
+    else
+      out:write(format("%s %d\n", k, v))
+    end
+    if count2 then
+      local r = count2[k]
+      if r then
+	prof_top(r, nil, v, (prof_split == 3 or prof_split == 1) and "  -- " or
+			    (prof_depth < 0 and "  -> " or "  <- "))
+      end
+    end
+  end
+end
+
+-- Annotate source code
+local function prof_annotate(count1, samples)
+  local files = {}
+  local ms = 0
+  for k, v in pairs(count1) do
+    local pct = floor(v*100/samples + 0.5)
+    ms = math.max(ms, v)
+    if pct >= prof_min then
+      local file, line = k:match("^(.*):(%d+)$")
+      if not file then file = k; line = 0 end
+      local fl = files[file]
+      if not fl then fl = {}; files[file] = fl; files[#files+1] = file end
+      line = tonumber(line)
+      fl[line] = prof_raw and v or pct
+    end
+  end
+  sort(files)
+  local fmtv, fmtn = " %3d%% | %s\n", "      | %s\n"
+  if prof_raw then
+    local n = math.max(5, math.ceil(math.log10(ms)))
+    fmtv = "%"..n.."d | %s\n"
+    fmtn = (" "):rep(n).." | %s\n"
+  end
+  local ann = prof_ann
+  for _, file in ipairs(files) do
+    local f0 = file:byte()
+    if f0 == 40 or f0 == 91 then
+      out:write(format("\n====== %s ======\n[Cannot annotate non-file]\n", file))
+      break
+    end
+    local fp, err = io.open(file)
+    if not fp then
+      out:write(format("====== ERROR: %s: %s\n", file, err))
+      break
+    end
+    out:write(format("\n====== %s ======\n", file))
+    local fl = files[file]
+    local n, show = 1, false
+    if ann ~= 0 then
+      for i=1,ann do
+	if fl[i] then show = true; out:write("@@ 1 @@\n"); break end
+      end
+    end
+    for line in fp:lines() do
+      if line:byte() == 27 then
+	out:write("[Cannot annotate bytecode file]\n")
+	break
+      end
+      local v = fl[n]
+      if ann ~= 0 then
+	local v2 = fl[n+ann]
+	if show then
+	  if v2 then show = n+ann elseif v then show = n
+	  elseif show+ann < n then show = false end
+	elseif v2 then
+	  show = n+ann
+	  out:write(format("@@ %d @@\n", n))
+	end
+	if not show then goto next end
+      end
+      if v then
+	out:write(format(fmtv, v, line))
+      else
+	out:write(format(fmtn, line))
+      end
+    ::next::
+      n = n + 1
+    end
+    fp:close()
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Finish profiling and dump result.
+local function prof_finish()
+  if prof_ud then
+    profile.stop()
+    local samples = prof_samples
+    if samples == 0 then
+      if prof_raw ~= true then out:write("[No samples collected]\n") end
+      return
+    end
+    if prof_ann then
+      prof_annotate(prof_count1, samples)
+    else
+      prof_top(prof_count1, prof_count2, samples, "")
+    end
+    prof_count1 = nil
+    prof_count2 = nil
+    prof_ud = nil
+    if out ~= stdout then out:close() end
+  end
+end
+
+-- Start profiling.
+local function prof_start(mode)
+  local interval = ""
+  mode = mode:gsub("i%d*", function(s) interval = s; return "" end)
+  prof_min = 3
+  mode = mode:gsub("m(%d+)", function(s) prof_min = tonumber(s); return "" end)
+  prof_depth = 1
+  mode = mode:gsub("%-?%d+", function(s) prof_depth = tonumber(s); return "" end)
+  local m = {}
+  for c in mode:gmatch(".") do m[c] = c end
+  prof_states = m.z or m.v
+  if prof_states == "z" then zone = require("jit.zone") end
+  local scope = m.l or m.f or m.F or (prof_states and "" or "f")
+  local flags = (m.p or "")
+  prof_raw = m.r
+  if m.s then
+    prof_split = 2
+    if prof_depth == -1 or m["-"] then prof_depth = -2
+    elseif prof_depth == 1 then prof_depth = 2 end
+  elseif mode:find("[fF].*l") then
+    scope = "l"
+    prof_split = 3
+  else
+    prof_split = (scope == "" or mode:find("[zv].*[lfF]")) and 1 or 0
+  end
+  prof_ann = m.A and 0 or (m.a and 3)
+  if prof_ann then
+    scope = "l"
+    prof_fmt = "pl"
+    prof_split = 0
+    prof_depth = 1
+  elseif m.G and scope ~= "" then
+    prof_fmt = flags..scope.."Z;"
+    prof_depth = -100
+    prof_raw = true
+    prof_min = 0
+  elseif scope == "" then
+    prof_fmt = false
+  else
+    local sc = prof_split == 3 and m.f or m.F or scope
+    prof_fmt = flags..sc..(prof_depth >= 0 and "Z < " or "Z > ")
+  end
+  prof_count1 = {}
+  prof_count2 = {}
+  prof_samples = 0
+  profile.start(scope:lower()..interval, prof_cb)
+  prof_ud = newproxy(true)
+  getmetatable(prof_ud).__gc = prof_finish
+end
+
+------------------------------------------------------------------------------
+
+local function start(mode, outfile)
+  if not outfile then outfile = os.getenv("LUAJIT_PROFILEFILE") end
+  if outfile then
+    out = outfile == "-" and stdout or assert(io.open(outfile, "w"))
+  else
+    out = stdout
+  end
+  prof_start(mode or "f")
+end
+
+-- Public module functions.
+return {
+  start = start, -- For -j command line option.
+  stop = prof_finish
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/v.lua b/libs/luajit-cmake/luajit/src/jit/v.lua
new file mode 100644
index 0000000..ac8b19d
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/v.lua
@@ -0,0 +1,170 @@
+----------------------------------------------------------------------------
+-- Verbose mode of the LuaJIT compiler.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+--
+-- This module shows verbose information about the progress of the
+-- JIT compiler. It prints one line for each generated trace. This module
+-- is useful to see which code has been compiled or where the compiler
+-- punts and falls back to the interpreter.
+--
+-- Example usage:
+--
+--   luajit -jv -e "for i=1,1000 do for j=1,1000 do end end"
+--   luajit -jv=myapp.out myapp.lua
+--
+-- Default output is to stderr. To redirect the output to a file, pass a
+-- filename as an argument (use '-' for stdout) or set the environment
+-- variable LUAJIT_VERBOSEFILE. The file is overwritten every time the
+-- module is started.
+--
+-- The output from the first example should look like this:
+--
+-- [TRACE   1 (command line):1 loop]
+-- [TRACE   2 (1/3) (command line):1 -> 1]
+--
+-- The first number in each line is the internal trace number. Next are
+-- the file name ('(command line)') and the line number (':1') where the
+-- trace has started. Side traces also show the parent trace number and
+-- the exit number where they are attached to in parentheses ('(1/3)').
+-- An arrow at the end shows where the trace links to ('-> 1'), unless
+-- it loops to itself.
+--
+-- In this case the inner loop gets hot and is traced first, generating
+-- a root trace. Then the last exit from the 1st trace gets hot, too,
+-- and triggers generation of the 2nd trace. The side trace follows the
+-- path along the outer loop and *around* the inner loop, back to its
+-- start, and then links to the 1st trace. Yes, this may seem unusual,
+-- if you know how traditional compilers work. Trace compilers are full
+-- of surprises like this -- have fun! :-)
+--
+-- Aborted traces are shown like this:
+--
+-- [TRACE --- foo.lua:44 -- leaving loop in root trace at foo:lua:50]
+--
+-- Don't worry -- trace aborts are quite common, even in programs which
+-- can be fully compiled. The compiler may retry several times until it
+-- finds a suitable trace.
+--
+-- Of course this doesn't work with features that are not-yet-implemented
+-- (NYI error messages). The VM simply falls back to the interpreter. This
+-- may not matter at all if the particular trace is not very high up in
+-- the CPU usage profile. Oh, and the interpreter is quite fast, too.
+--
+-- Also check out the -jdump module, which prints all the gory details.
+--
+------------------------------------------------------------------------------
+
+-- Cache some library functions and objects.
+local jit = require("jit")
+assert(jit.version_num == 20100, "LuaJIT core/library version mismatch")
+local jutil = require("jit.util")
+local vmdef = require("jit.vmdef")
+local funcinfo, traceinfo = jutil.funcinfo, jutil.traceinfo
+local type, format = type, string.format
+local stdout, stderr = io.stdout, io.stderr
+
+-- Active flag and output file handle.
+local active, out
+
+------------------------------------------------------------------------------
+
+local startloc, startex
+
+local function fmtfunc(func, pc)
+  local fi = funcinfo(func, pc)
+  if fi.loc then
+    return fi.loc
+  elseif fi.ffid then
+    return vmdef.ffnames[fi.ffid]
+  elseif fi.addr then
+    return format("C:%x", fi.addr)
+  else
+    return "(?)"
+  end
+end
+
+-- Format trace error message.
+local function fmterr(err, info)
+  if type(err) == "number" then
+    if type(info) == "function" then info = fmtfunc(info) end
+    err = format(vmdef.traceerr[err], info)
+  end
+  return err
+end
+
+-- Dump trace states.
+local function dump_trace(what, tr, func, pc, otr, oex)
+  if what == "start" then
+    startloc = fmtfunc(func, pc)
+    startex = otr and "("..otr.."/"..(oex == -1 and "stitch" or oex)..") " or ""
+  else
+    if what == "abort" then
+      local loc = fmtfunc(func, pc)
+      if loc ~= startloc then
+	out:write(format("[TRACE --- %s%s -- %s at %s]\n",
+	  startex, startloc, fmterr(otr, oex), loc))
+      else
+	out:write(format("[TRACE --- %s%s -- %s]\n",
+	  startex, startloc, fmterr(otr, oex)))
+      end
+    elseif what == "stop" then
+      local info = traceinfo(tr)
+      local link, ltype = info.link, info.linktype
+      if ltype == "interpreter" then
+	out:write(format("[TRACE %3s %s%s -- fallback to interpreter]\n",
+	  tr, startex, startloc))
+      elseif ltype == "stitch" then
+	out:write(format("[TRACE %3s %s%s %s %s]\n",
+	  tr, startex, startloc, ltype, fmtfunc(func, pc)))
+      elseif link == tr or link == 0 then
+	out:write(format("[TRACE %3s %s%s %s]\n",
+	  tr, startex, startloc, ltype))
+      elseif ltype == "root" then
+	out:write(format("[TRACE %3s %s%s -> %d]\n",
+	  tr, startex, startloc, link))
+      else
+	out:write(format("[TRACE %3s %s%s -> %d %s]\n",
+	  tr, startex, startloc, link, ltype))
+      end
+    else
+      out:write(format("[TRACE %s]\n", what))
+    end
+    out:flush()
+  end
+end
+
+------------------------------------------------------------------------------
+
+-- Detach dump handlers.
+local function dumpoff()
+  if active then
+    active = false
+    jit.attach(dump_trace)
+    if out and out ~= stdout and out ~= stderr then out:close() end
+    out = nil
+  end
+end
+
+-- Open the output file and attach dump handlers.
+local function dumpon(outfile)
+  if active then dumpoff() end
+  if not outfile then outfile = os.getenv("LUAJIT_VERBOSEFILE") end
+  if outfile then
+    out = outfile == "-" and stdout or assert(io.open(outfile, "w"))
+  else
+    out = stderr
+  end
+  jit.attach(dump_trace, "trace")
+  active = true
+end
+
+-- Public module functions.
+return {
+  on = dumpon,
+  off = dumpoff,
+  start = dumpon -- For -j command line option.
+}
+
diff --git a/libs/luajit-cmake/luajit/src/jit/zone.lua b/libs/luajit-cmake/luajit/src/jit/zone.lua
new file mode 100644
index 0000000..1308cb7
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/jit/zone.lua
@@ -0,0 +1,45 @@
+----------------------------------------------------------------------------
+-- LuaJIT profiler zones.
+--
+-- Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+-- Released under the MIT license. See Copyright Notice in luajit.h
+----------------------------------------------------------------------------
+--
+-- This module implements a simple hierarchical zone model.
+--
+-- Example usage:
+--
+--   local zone = require("jit.zone")
+--   zone("AI")
+--   ...
+--     zone("A*")
+--     ...
+--     print(zone:get()) --> "A*"
+--     ...
+--     zone()
+--   ...
+--   print(zone:get()) --> "AI"
+--   ...
+--   zone()
+--
+----------------------------------------------------------------------------
+
+local remove = table.remove
+
+return setmetatable({
+  flush = function(t)
+    for i=#t,1,-1 do t[i] = nil end
+  end,
+  get = function(t)
+    return t[#t]
+  end
+}, {
+  __call = function(t, zone)
+    if zone then
+      t[#t+1] = zone
+    else
+      return (assert(remove(t), "empty zone stack"))
+    end
+  end
+})
+
diff --git a/libs/luajit-cmake/luajit/src/lauxlib.h b/libs/luajit-cmake/luajit/src/lauxlib.h
new file mode 100644
index 0000000..a44f027
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lauxlib.h
@@ -0,0 +1,161 @@
+/*
+** $Id: lauxlib.h,v 1.88.1.1 2007/12/27 13:02:25 roberto Exp $
+** Auxiliary functions for building Lua libraries
+** See Copyright Notice in lua.h
+*/
+
+
+#ifndef lauxlib_h
+#define lauxlib_h
+
+
+#include <stddef.h>
+#include <stdio.h>
+
+#include "lua.h"
+
+
+/* extra error code for `luaL_load' */
+#define LUA_ERRFILE     (LUA_ERRERR+1)
+
+typedef struct luaL_Reg {
+  const char *name;
+  lua_CFunction func;
+} luaL_Reg;
+
+LUALIB_API void (luaL_openlib) (lua_State *L, const char *libname,
+                                const luaL_Reg *l, int nup);
+LUALIB_API void (luaL_register) (lua_State *L, const char *libname,
+                                const luaL_Reg *l);
+LUALIB_API int (luaL_getmetafield) (lua_State *L, int obj, const char *e);
+LUALIB_API int (luaL_callmeta) (lua_State *L, int obj, const char *e);
+LUALIB_API int (luaL_typerror) (lua_State *L, int narg, const char *tname);
+LUALIB_API int (luaL_argerror) (lua_State *L, int numarg, const char *extramsg);
+LUALIB_API const char *(luaL_checklstring) (lua_State *L, int numArg,
+                                                          size_t *l);
+LUALIB_API const char *(luaL_optlstring) (lua_State *L, int numArg,
+                                          const char *def, size_t *l);
+LUALIB_API lua_Number (luaL_checknumber) (lua_State *L, int numArg);
+LUALIB_API lua_Number (luaL_optnumber) (lua_State *L, int nArg, lua_Number def);
+
+LUALIB_API lua_Integer (luaL_checkinteger) (lua_State *L, int numArg);
+LUALIB_API lua_Integer (luaL_optinteger) (lua_State *L, int nArg,
+                                          lua_Integer def);
+
+LUALIB_API void (luaL_checkstack) (lua_State *L, int sz, const char *msg);
+LUALIB_API void (luaL_checktype) (lua_State *L, int narg, int t);
+LUALIB_API void (luaL_checkany) (lua_State *L, int narg);
+
+LUALIB_API int   (luaL_newmetatable) (lua_State *L, const char *tname);
+LUALIB_API void *(luaL_checkudata) (lua_State *L, int ud, const char *tname);
+
+LUALIB_API void (luaL_where) (lua_State *L, int lvl);
+LUALIB_API int (luaL_error) (lua_State *L, const char *fmt, ...);
+
+LUALIB_API int (luaL_checkoption) (lua_State *L, int narg, const char *def,
+                                   const char *const lst[]);
+
+/* pre-defined references */
+#define LUA_NOREF       (-2)
+#define LUA_REFNIL      (-1)
+
+LUALIB_API int (luaL_ref) (lua_State *L, int t);
+LUALIB_API void (luaL_unref) (lua_State *L, int t, int ref);
+
+LUALIB_API int (luaL_loadfile) (lua_State *L, const char *filename);
+LUALIB_API int (luaL_loadbuffer) (lua_State *L, const char *buff, size_t sz,
+                                  const char *name);
+LUALIB_API int (luaL_loadstring) (lua_State *L, const char *s);
+
+LUALIB_API lua_State *(luaL_newstate) (void);
+
+
+LUALIB_API const char *(luaL_gsub) (lua_State *L, const char *s, const char *p,
+                                                  const char *r);
+
+LUALIB_API const char *(luaL_findtable) (lua_State *L, int idx,
+                                         const char *fname, int szhint);
+
+/* From Lua 5.2. */
+LUALIB_API int luaL_fileresult(lua_State *L, int stat, const char *fname);
+LUALIB_API int luaL_execresult(lua_State *L, int stat);
+LUALIB_API int (luaL_loadfilex) (lua_State *L, const char *filename,
+				 const char *mode);
+LUALIB_API int (luaL_loadbufferx) (lua_State *L, const char *buff, size_t sz,
+				   const char *name, const char *mode);
+LUALIB_API void luaL_traceback (lua_State *L, lua_State *L1, const char *msg,
+				int level);
+LUALIB_API void (luaL_setfuncs) (lua_State *L, const luaL_Reg *l, int nup);
+LUALIB_API void (luaL_pushmodule) (lua_State *L, const char *modname,
+				   int sizehint);
+LUALIB_API void *(luaL_testudata) (lua_State *L, int ud, const char *tname);
+LUALIB_API void (luaL_setmetatable) (lua_State *L, const char *tname);
+
+
+/*
+** ===============================================================
+** some useful macros
+** ===============================================================
+*/
+
+#define luaL_argcheck(L, cond,numarg,extramsg)	\
+		((void)((cond) || luaL_argerror(L, (numarg), (extramsg))))
+#define luaL_checkstring(L,n)	(luaL_checklstring(L, (n), NULL))
+#define luaL_optstring(L,n,d)	(luaL_optlstring(L, (n), (d), NULL))
+#define luaL_checkint(L,n)	((int)luaL_checkinteger(L, (n)))
+#define luaL_optint(L,n,d)	((int)luaL_optinteger(L, (n), (d)))
+#define luaL_checklong(L,n)	((long)luaL_checkinteger(L, (n)))
+#define luaL_optlong(L,n,d)	((long)luaL_optinteger(L, (n), (d)))
+
+#define luaL_typename(L,i)	lua_typename(L, lua_type(L,(i)))
+
+#define luaL_dofile(L, fn) \
+	(luaL_loadfile(L, fn) || lua_pcall(L, 0, LUA_MULTRET, 0))
+
+#define luaL_dostring(L, s) \
+	(luaL_loadstring(L, s) || lua_pcall(L, 0, LUA_MULTRET, 0))
+
+#define luaL_getmetatable(L,n)	(lua_getfield(L, LUA_REGISTRYINDEX, (n)))
+
+#define luaL_opt(L,f,n,d)	(lua_isnoneornil(L,(n)) ? (d) : f(L,(n)))
+
+/* From Lua 5.2. */
+#define luaL_newlibtable(L, l) \
+	lua_createtable(L, 0, sizeof(l)/sizeof((l)[0]) - 1)
+#define luaL_newlib(L, l)	(luaL_newlibtable(L, l), luaL_setfuncs(L, l, 0))
+
+/*
+** {======================================================
+** Generic Buffer manipulation
+** =======================================================
+*/
+
+
+
+typedef struct luaL_Buffer {
+  char *p;			/* current position in buffer */
+  int lvl;  /* number of strings in the stack (level) */
+  lua_State *L;
+  char buffer[LUAL_BUFFERSIZE];
+} luaL_Buffer;
+
+#define luaL_addchar(B,c) \
+  ((void)((B)->p < ((B)->buffer+LUAL_BUFFERSIZE) || luaL_prepbuffer(B)), \
+   (*(B)->p++ = (char)(c)))
+
+/* compatibility only */
+#define luaL_putchar(B,c)	luaL_addchar(B,c)
+
+#define luaL_addsize(B,n)	((B)->p += (n))
+
+LUALIB_API void (luaL_buffinit) (lua_State *L, luaL_Buffer *B);
+LUALIB_API char *(luaL_prepbuffer) (luaL_Buffer *B);
+LUALIB_API void (luaL_addlstring) (luaL_Buffer *B, const char *s, size_t l);
+LUALIB_API void (luaL_addstring) (luaL_Buffer *B, const char *s);
+LUALIB_API void (luaL_addvalue) (luaL_Buffer *B);
+LUALIB_API void (luaL_pushresult) (luaL_Buffer *B);
+
+
+/* }====================================================== */
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lib_aux.c b/libs/luajit-cmake/luajit/src/lib_aux.c
new file mode 100644
index 0000000..b8e5643
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lib_aux.c
@@ -0,0 +1,370 @@
+/*
+** Auxiliary library for the Lua/C API.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major parts taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+
+#define lib_aux_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_state.h"
+#include "lj_trace.h"
+#include "lj_lib.h"
+
+#if LJ_TARGET_POSIX
+#include <sys/wait.h>
+#endif
+
+/* -- I/O error handling -------------------------------------------------- */
+
+LUALIB_API int luaL_fileresult(lua_State *L, int stat, const char *fname)
+{
+  if (stat) {
+    setboolV(L->top++, 1);
+    return 1;
+  } else {
+    int en = errno;  /* Lua API calls may change this value. */
+    setnilV(L->top++);
+    if (fname)
+      lua_pushfstring(L, "%s: %s", fname, strerror(en));
+    else
+      lua_pushfstring(L, "%s", strerror(en));
+    setintV(L->top++, en);
+    lj_trace_abort(G(L));
+    return 3;
+  }
+}
+
+LUALIB_API int luaL_execresult(lua_State *L, int stat)
+{
+  if (stat != -1) {
+#if LJ_TARGET_POSIX
+    if (WIFSIGNALED(stat)) {
+      stat = WTERMSIG(stat);
+      setnilV(L->top++);
+      lua_pushliteral(L, "signal");
+    } else {
+      if (WIFEXITED(stat))
+	stat = WEXITSTATUS(stat);
+      if (stat == 0)
+	setboolV(L->top++, 1);
+      else
+	setnilV(L->top++);
+      lua_pushliteral(L, "exit");
+    }
+#else
+    if (stat == 0)
+      setboolV(L->top++, 1);
+    else
+      setnilV(L->top++);
+    lua_pushliteral(L, "exit");
+#endif
+    setintV(L->top++, stat);
+    return 3;
+  }
+  return luaL_fileresult(L, 0, NULL);
+}
+
+/* -- Module registration ------------------------------------------------- */
+
+LUALIB_API const char *luaL_findtable(lua_State *L, int idx,
+				      const char *fname, int szhint)
+{
+  const char *e;
+  lua_pushvalue(L, idx);
+  do {
+    e = strchr(fname, '.');
+    if (e == NULL) e = fname + strlen(fname);
+    lua_pushlstring(L, fname, (size_t)(e - fname));
+    lua_rawget(L, -2);
+    if (lua_isnil(L, -1)) {  /* no such field? */
+      lua_pop(L, 1);  /* remove this nil */
+      lua_createtable(L, 0, (*e == '.' ? 1 : szhint)); /* new table for field */
+      lua_pushlstring(L, fname, (size_t)(e - fname));
+      lua_pushvalue(L, -2);
+      lua_settable(L, -4);  /* set new table into field */
+    } else if (!lua_istable(L, -1)) {  /* field has a non-table value? */
+      lua_pop(L, 2);  /* remove table and value */
+      return fname;  /* return problematic part of the name */
+    }
+    lua_remove(L, -2);  /* remove previous table */
+    fname = e + 1;
+  } while (*e == '.');
+  return NULL;
+}
+
+static int libsize(const luaL_Reg *l)
+{
+  int size = 0;
+  for (; l && l->name; l++) size++;
+  return size;
+}
+
+LUALIB_API void luaL_pushmodule(lua_State *L, const char *modname, int sizehint)
+{
+  luaL_findtable(L, LUA_REGISTRYINDEX, "_LOADED", 16);
+  lua_getfield(L, -1, modname);
+  if (!lua_istable(L, -1)) {
+    lua_pop(L, 1);
+    if (luaL_findtable(L, LUA_GLOBALSINDEX, modname, sizehint) != NULL)
+      lj_err_callerv(L, LJ_ERR_BADMODN, modname);
+    lua_pushvalue(L, -1);
+    lua_setfield(L, -3, modname);  /* _LOADED[modname] = new table. */
+  }
+  lua_remove(L, -2);  /* Remove _LOADED table. */
+}
+
+LUALIB_API void luaL_openlib(lua_State *L, const char *libname,
+			     const luaL_Reg *l, int nup)
+{
+  lj_lib_checkfpu(L);
+  if (libname) {
+    luaL_pushmodule(L, libname, libsize(l));
+    lua_insert(L, -(nup + 1));  /* Move module table below upvalues. */
+  }
+  if (l)
+    luaL_setfuncs(L, l, nup);
+  else
+    lua_pop(L, nup);  /* Remove upvalues. */
+}
+
+LUALIB_API void luaL_register(lua_State *L, const char *libname,
+			      const luaL_Reg *l)
+{
+  luaL_openlib(L, libname, l, 0);
+}
+
+LUALIB_API void luaL_setfuncs(lua_State *L, const luaL_Reg *l, int nup)
+{
+  luaL_checkstack(L, nup, "too many upvalues");
+  for (; l->name; l++) {
+    int i;
+    for (i = 0; i < nup; i++)  /* Copy upvalues to the top. */
+      lua_pushvalue(L, -nup);
+    lua_pushcclosure(L, l->func, nup);
+    lua_setfield(L, -(nup + 2), l->name);
+  }
+  lua_pop(L, nup);  /* Remove upvalues. */
+}
+
+LUALIB_API const char *luaL_gsub(lua_State *L, const char *s,
+				 const char *p, const char *r)
+{
+  const char *wild;
+  size_t l = strlen(p);
+  luaL_Buffer b;
+  luaL_buffinit(L, &b);
+  while ((wild = strstr(s, p)) != NULL) {
+    luaL_addlstring(&b, s, (size_t)(wild - s));  /* push prefix */
+    luaL_addstring(&b, r);  /* push replacement in place of pattern */
+    s = wild + l;  /* continue after `p' */
+  }
+  luaL_addstring(&b, s);  /* push last suffix */
+  luaL_pushresult(&b);
+  return lua_tostring(L, -1);
+}
+
+/* -- Buffer handling ----------------------------------------------------- */
+
+#define bufflen(B)	((size_t)((B)->p - (B)->buffer))
+#define bufffree(B)	((size_t)(LUAL_BUFFERSIZE - bufflen(B)))
+
+static int emptybuffer(luaL_Buffer *B)
+{
+  size_t l = bufflen(B);
+  if (l == 0)
+    return 0;  /* put nothing on stack */
+  lua_pushlstring(B->L, B->buffer, l);
+  B->p = B->buffer;
+  B->lvl++;
+  return 1;
+}
+
+static void adjuststack(luaL_Buffer *B)
+{
+  if (B->lvl > 1) {
+    lua_State *L = B->L;
+    int toget = 1;  /* number of levels to concat */
+    size_t toplen = lua_strlen(L, -1);
+    do {
+      size_t l = lua_strlen(L, -(toget+1));
+      if (!(B->lvl - toget + 1 >= LUA_MINSTACK/2 || toplen > l))
+	break;
+      toplen += l;
+      toget++;
+    } while (toget < B->lvl);
+    lua_concat(L, toget);
+    B->lvl = B->lvl - toget + 1;
+  }
+}
+
+LUALIB_API char *luaL_prepbuffer(luaL_Buffer *B)
+{
+  if (emptybuffer(B))
+    adjuststack(B);
+  return B->buffer;
+}
+
+LUALIB_API void luaL_addlstring(luaL_Buffer *B, const char *s, size_t l)
+{
+  if (l <= bufffree(B)) {
+    memcpy(B->p, s, l);
+    B->p += l;
+  } else {
+    emptybuffer(B);
+    lua_pushlstring(B->L, s, l);
+    B->lvl++;
+    adjuststack(B);
+  }
+}
+
+LUALIB_API void luaL_addstring(luaL_Buffer *B, const char *s)
+{
+  luaL_addlstring(B, s, strlen(s));
+}
+
+LUALIB_API void luaL_pushresult(luaL_Buffer *B)
+{
+  emptybuffer(B);
+  lua_concat(B->L, B->lvl);
+  B->lvl = 1;
+}
+
+LUALIB_API void luaL_addvalue(luaL_Buffer *B)
+{
+  lua_State *L = B->L;
+  size_t vl;
+  const char *s = lua_tolstring(L, -1, &vl);
+  if (vl <= bufffree(B)) {  /* fit into buffer? */
+    memcpy(B->p, s, vl);  /* put it there */
+    B->p += vl;
+    lua_pop(L, 1);  /* remove from stack */
+  } else {
+    if (emptybuffer(B))
+      lua_insert(L, -2);  /* put buffer before new value */
+    B->lvl++;  /* add new value into B stack */
+    adjuststack(B);
+  }
+}
+
+LUALIB_API void luaL_buffinit(lua_State *L, luaL_Buffer *B)
+{
+  B->L = L;
+  B->p = B->buffer;
+  B->lvl = 0;
+}
+
+/* -- Reference management ------------------------------------------------ */
+
+#define FREELIST_REF	0
+
+/* Convert a stack index to an absolute index. */
+#define abs_index(L, i) \
+  ((i) > 0 || (i) <= LUA_REGISTRYINDEX ? (i) : lua_gettop(L) + (i) + 1)
+
+LUALIB_API int luaL_ref(lua_State *L, int t)
+{
+  int ref;
+  t = abs_index(L, t);
+  if (lua_isnil(L, -1)) {
+    lua_pop(L, 1);  /* remove from stack */
+    return LUA_REFNIL;  /* `nil' has a unique fixed reference */
+  }
+  lua_rawgeti(L, t, FREELIST_REF);  /* get first free element */
+  ref = (int)lua_tointeger(L, -1);  /* ref = t[FREELIST_REF] */
+  lua_pop(L, 1);  /* remove it from stack */
+  if (ref != 0) {  /* any free element? */
+    lua_rawgeti(L, t, ref);  /* remove it from list */
+    lua_rawseti(L, t, FREELIST_REF);  /* (t[FREELIST_REF] = t[ref]) */
+  } else {  /* no free elements */
+    ref = (int)lua_objlen(L, t);
+    ref++;  /* create new reference */
+  }
+  lua_rawseti(L, t, ref);
+  return ref;
+}
+
+LUALIB_API void luaL_unref(lua_State *L, int t, int ref)
+{
+  if (ref >= 0) {
+    t = abs_index(L, t);
+    lua_rawgeti(L, t, FREELIST_REF);
+    lua_rawseti(L, t, ref);  /* t[ref] = t[FREELIST_REF] */
+    lua_pushinteger(L, ref);
+    lua_rawseti(L, t, FREELIST_REF);  /* t[FREELIST_REF] = ref */
+  }
+}
+
+/* -- Default allocator and panic function -------------------------------- */
+
+static int panic(lua_State *L)
+{
+  const char *s = lua_tostring(L, -1);
+  fputs("PANIC: unprotected error in call to Lua API (", stderr);
+  fputs(s ? s : "?", stderr);
+  fputc(')', stderr); fputc('\n', stderr);
+  fflush(stderr);
+  return 0;
+}
+
+#ifdef LUAJIT_USE_SYSMALLOC
+
+#if LJ_64 && !LJ_GC64 && !defined(LUAJIT_USE_VALGRIND)
+#error "Must use builtin allocator for 64 bit target"
+#endif
+
+static void *mem_alloc(void *ud, void *ptr, size_t osize, size_t nsize)
+{
+  (void)ud;
+  (void)osize;
+  if (nsize == 0) {
+    free(ptr);
+    return NULL;
+  } else {
+    return realloc(ptr, nsize);
+  }
+}
+
+LUALIB_API lua_State *luaL_newstate(void)
+{
+  lua_State *L = lua_newstate(mem_alloc, NULL);
+  if (L) G(L)->panic = panic;
+  return L;
+}
+
+#else
+
+LUALIB_API lua_State *luaL_newstate(void)
+{
+  lua_State *L;
+#if LJ_64 && !LJ_GC64
+  L = lj_state_newstate(LJ_ALLOCF_INTERNAL, NULL);
+#else
+  L = lua_newstate(LJ_ALLOCF_INTERNAL, NULL);
+#endif
+  if (L) G(L)->panic = panic;
+  return L;
+}
+
+#if LJ_64 && !LJ_GC64
+LUA_API lua_State *lua_newstate(lua_Alloc f, void *ud)
+{
+  UNUSED(f); UNUSED(ud);
+  fputs("Must use luaL_newstate() for 64 bit target\n", stderr);
+  return NULL;
+}
+#endif
+
+#endif
+
diff --git a/libs/luajit-cmake/luajit/src/lib_base.c b/libs/luajit-cmake/luajit/src/lib_base.c
new file mode 100644
index 0000000..98ec67c
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lib_base.c
@@ -0,0 +1,696 @@
+/*
+** Base and coroutine library.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2011 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#include <stdio.h>
+
+#define lib_base_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_meta.h"
+#include "lj_state.h"
+#include "lj_frame.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_cconv.h"
+#endif
+#include "lj_bc.h"
+#include "lj_ff.h"
+#include "lj_dispatch.h"
+#include "lj_char.h"
+#include "lj_strscan.h"
+#include "lj_strfmt.h"
+#include "lj_lib.h"
+
+/* -- Base library: checks ------------------------------------------------ */
+
+#define LJLIB_MODULE_base
+
+LJLIB_ASM(assert)		LJLIB_REC(.)
+{
+  lj_lib_checkany(L, 1);
+  if (L->top == L->base+1)
+    lj_err_caller(L, LJ_ERR_ASSERT);
+  else if (tvisstr(L->base+1) || tvisnumber(L->base+1))
+    lj_err_callermsg(L, strdata(lj_lib_checkstr(L, 2)));
+  else
+    lj_err_run(L);
+  return FFH_UNREACHABLE;
+}
+
+/* ORDER LJ_T */
+LJLIB_PUSH("nil")
+LJLIB_PUSH("boolean")
+LJLIB_PUSH(top-1)  /* boolean */
+LJLIB_PUSH("userdata")
+LJLIB_PUSH("string")
+LJLIB_PUSH("upval")
+LJLIB_PUSH("thread")
+LJLIB_PUSH("proto")
+LJLIB_PUSH("function")
+LJLIB_PUSH("trace")
+LJLIB_PUSH("cdata")
+LJLIB_PUSH("table")
+LJLIB_PUSH(top-9)  /* userdata */
+LJLIB_PUSH("number")
+LJLIB_ASM_(type)		LJLIB_REC(.)
+/* Recycle the lj_lib_checkany(L, 1) from assert. */
+
+/* -- Base library: iterators --------------------------------------------- */
+
+/* This solves a circular dependency problem -- change FF_next_N as needed. */
+LJ_STATIC_ASSERT((int)FF_next == FF_next_N);
+
+LJLIB_ASM(next)			LJLIB_REC(.)
+{
+  lj_lib_checktab(L, 1);
+  lj_err_msg(L, LJ_ERR_NEXTIDX);
+  return FFH_UNREACHABLE;
+}
+
+#if LJ_52 || LJ_HASFFI
+static int ffh_pairs(lua_State *L, MMS mm)
+{
+  TValue *o = lj_lib_checkany(L, 1);
+  cTValue *mo = lj_meta_lookup(L, o, mm);
+  if ((LJ_52 || tviscdata(o)) && !tvisnil(mo)) {
+    L->top = o+1;  /* Only keep one argument. */
+    copyTV(L, L->base-1-LJ_FR2, mo);  /* Replace callable. */
+    return FFH_TAILCALL;
+  } else {
+    if (!tvistab(o)) lj_err_argt(L, 1, LUA_TTABLE);
+    if (LJ_FR2) { copyTV(L, o-1, o); o--; }
+    setfuncV(L, o-1, funcV(lj_lib_upvalue(L, 1)));
+    if (mm == MM_pairs) setnilV(o+1); else setintV(o+1, 0);
+    return FFH_RES(3);
+  }
+}
+#else
+#define ffh_pairs(L, mm)	(lj_lib_checktab(L, 1), FFH_UNREACHABLE)
+#endif
+
+LJLIB_PUSH(lastcl)
+LJLIB_ASM(pairs)		LJLIB_REC(xpairs 0)
+{
+  return ffh_pairs(L, MM_pairs);
+}
+
+LJLIB_NOREGUV LJLIB_ASM(ipairs_aux)	LJLIB_REC(.)
+{
+  lj_lib_checktab(L, 1);
+  lj_lib_checkint(L, 2);
+  return FFH_UNREACHABLE;
+}
+
+LJLIB_PUSH(lastcl)
+LJLIB_ASM(ipairs)		LJLIB_REC(xpairs 1)
+{
+  return ffh_pairs(L, MM_ipairs);
+}
+
+/* -- Base library: getters and setters ----------------------------------- */
+
+LJLIB_ASM_(getmetatable)	LJLIB_REC(.)
+/* Recycle the lj_lib_checkany(L, 1) from assert. */
+
+LJLIB_ASM(setmetatable)		LJLIB_REC(.)
+{
+  GCtab *t = lj_lib_checktab(L, 1);
+  GCtab *mt = lj_lib_checktabornil(L, 2);
+  if (!tvisnil(lj_meta_lookup(L, L->base, MM_metatable)))
+    lj_err_caller(L, LJ_ERR_PROTMT);
+  setgcref(t->metatable, obj2gco(mt));
+  if (mt) { lj_gc_objbarriert(L, t, mt); }
+  settabV(L, L->base-1-LJ_FR2, t);
+  return FFH_RES(1);
+}
+
+LJLIB_CF(getfenv)		LJLIB_REC(.)
+{
+  GCfunc *fn;
+  cTValue *o = L->base;
+  if (!(o < L->top && tvisfunc(o))) {
+    int level = lj_lib_optint(L, 1, 1);
+    o = lj_debug_frame(L, level, &level);
+    if (o == NULL)
+      lj_err_arg(L, 1, LJ_ERR_INVLVL);
+    if (LJ_FR2) o--;
+  }
+  fn = &gcval(o)->fn;
+  settabV(L, L->top++, isluafunc(fn) ? tabref(fn->l.env) : tabref(L->env));
+  return 1;
+}
+
+LJLIB_CF(setfenv)
+{
+  GCfunc *fn;
+  GCtab *t = lj_lib_checktab(L, 2);
+  cTValue *o = L->base;
+  if (!(o < L->top && tvisfunc(o))) {
+    int level = lj_lib_checkint(L, 1);
+    if (level == 0) {
+      /* NOBARRIER: A thread (i.e. L) is never black. */
+      setgcref(L->env, obj2gco(t));
+      return 0;
+    }
+    o = lj_debug_frame(L, level, &level);
+    if (o == NULL)
+      lj_err_arg(L, 1, LJ_ERR_INVLVL);
+    if (LJ_FR2) o--;
+  }
+  fn = &gcval(o)->fn;
+  if (!isluafunc(fn))
+    lj_err_caller(L, LJ_ERR_SETFENV);
+  setgcref(fn->l.env, obj2gco(t));
+  lj_gc_objbarrier(L, obj2gco(fn), t);
+  setfuncV(L, L->top++, fn);
+  return 1;
+}
+
+LJLIB_ASM(rawget)		LJLIB_REC(.)
+{
+  lj_lib_checktab(L, 1);
+  lj_lib_checkany(L, 2);
+  return FFH_UNREACHABLE;
+}
+
+LJLIB_CF(rawset)		LJLIB_REC(.)
+{
+  lj_lib_checktab(L, 1);
+  lj_lib_checkany(L, 2);
+  L->top = 1+lj_lib_checkany(L, 3);
+  lua_rawset(L, 1);
+  return 1;
+}
+
+LJLIB_CF(rawequal)		LJLIB_REC(.)
+{
+  cTValue *o1 = lj_lib_checkany(L, 1);
+  cTValue *o2 = lj_lib_checkany(L, 2);
+  setboolV(L->top-1, lj_obj_equal(o1, o2));
+  return 1;
+}
+
+#if LJ_52
+LJLIB_CF(rawlen)		LJLIB_REC(.)
+{
+  cTValue *o = L->base;
+  int32_t len;
+  if (L->top > o && tvisstr(o))
+    len = (int32_t)strV(o)->len;
+  else
+    len = (int32_t)lj_tab_len(lj_lib_checktab(L, 1));
+  setintV(L->top-1, len);
+  return 1;
+}
+#endif
+
+LJLIB_CF(unpack)
+{
+  GCtab *t = lj_lib_checktab(L, 1);
+  int32_t n, i = lj_lib_optint(L, 2, 1);
+  int32_t e = (L->base+3-1 < L->top && !tvisnil(L->base+3-1)) ?
+	      lj_lib_checkint(L, 3) : (int32_t)lj_tab_len(t);
+  uint32_t nu;
+  if (i > e) return 0;
+  nu = (uint32_t)e - (uint32_t)i;
+  n = (int32_t)(nu+1);
+  if (nu >= LUAI_MAXCSTACK || !lua_checkstack(L, n))
+    lj_err_caller(L, LJ_ERR_UNPACK);
+  do {
+    cTValue *tv = lj_tab_getint(t, i);
+    if (tv) {
+      copyTV(L, L->top++, tv);
+    } else {
+      setnilV(L->top++);
+    }
+  } while (i++ < e);
+  return n;
+}
+
+LJLIB_CF(select)		LJLIB_REC(.)
+{
+  int32_t n = (int32_t)(L->top - L->base);
+  if (n >= 1 && tvisstr(L->base) && *strVdata(L->base) == '#') {
+    setintV(L->top-1, n-1);
+    return 1;
+  } else {
+    int32_t i = lj_lib_checkint(L, 1);
+    if (i < 0) i = n + i; else if (i > n) i = n;
+    if (i < 1)
+      lj_err_arg(L, 1, LJ_ERR_IDXRNG);
+    return n - i;
+  }
+}
+
+/* -- Base library: conversions ------------------------------------------- */
+
+LJLIB_ASM(tonumber)		LJLIB_REC(.)
+{
+  int32_t base = lj_lib_optint(L, 2, 10);
+  if (base == 10) {
+    TValue *o = lj_lib_checkany(L, 1);
+    if (lj_strscan_numberobj(o)) {
+      copyTV(L, L->base-1-LJ_FR2, o);
+      return FFH_RES(1);
+    }
+#if LJ_HASFFI
+    if (tviscdata(o)) {
+      CTState *cts = ctype_cts(L);
+      CType *ct = lj_ctype_rawref(cts, cdataV(o)->ctypeid);
+      if (ctype_isenum(ct->info)) ct = ctype_child(cts, ct);
+      if (ctype_isnum(ct->info) || ctype_iscomplex(ct->info)) {
+	if (LJ_DUALNUM && ctype_isinteger_or_bool(ct->info) &&
+	    ct->size <= 4 && !(ct->size == 4 && (ct->info & CTF_UNSIGNED))) {
+	  int32_t i;
+	  lj_cconv_ct_tv(cts, ctype_get(cts, CTID_INT32), (uint8_t *)&i, o, 0);
+	  setintV(L->base-1-LJ_FR2, i);
+	  return FFH_RES(1);
+	}
+	lj_cconv_ct_tv(cts, ctype_get(cts, CTID_DOUBLE),
+		       (uint8_t *)&(L->base-1-LJ_FR2)->n, o, 0);
+	return FFH_RES(1);
+      }
+    }
+#endif
+  } else {
+    const char *p = strdata(lj_lib_checkstr(L, 1));
+    char *ep;
+    unsigned int neg = 0;
+    unsigned long ul;
+    if (base < 2 || base > 36)
+      lj_err_arg(L, 2, LJ_ERR_BASERNG);
+    while (lj_char_isspace((unsigned char)(*p))) p++;
+    if (*p == '-') { p++; neg = 1; } else if (*p == '+') { p++; }
+    if (lj_char_isalnum((unsigned char)(*p))) {
+      ul = strtoul(p, &ep, base);
+      if (p != ep) {
+	while (lj_char_isspace((unsigned char)(*ep))) ep++;
+	if (*ep == '\0') {
+	  if (LJ_DUALNUM && LJ_LIKELY(ul < 0x80000000u+neg)) {
+	    if (neg) ul = (unsigned long)-(long)ul;
+	    setintV(L->base-1-LJ_FR2, (int32_t)ul);
+	  } else {
+	    lua_Number n = (lua_Number)ul;
+	    if (neg) n = -n;
+	    setnumV(L->base-1-LJ_FR2, n);
+	  }
+	  return FFH_RES(1);
+	}
+      }
+    }
+  }
+  setnilV(L->base-1-LJ_FR2);
+  return FFH_RES(1);
+}
+
+LJLIB_ASM(tostring)		LJLIB_REC(.)
+{
+  TValue *o = lj_lib_checkany(L, 1);
+  cTValue *mo;
+  L->top = o+1;  /* Only keep one argument. */
+  if (!tvisnil(mo = lj_meta_lookup(L, o, MM_tostring))) {
+    copyTV(L, L->base-1-LJ_FR2, mo);  /* Replace callable. */
+    return FFH_TAILCALL;
+  }
+  lj_gc_check(L);
+  setstrV(L, L->base-1-LJ_FR2, lj_strfmt_obj(L, L->base));
+  return FFH_RES(1);
+}
+
+/* -- Base library: throw and catch errors -------------------------------- */
+
+LJLIB_CF(error)
+{
+  int32_t level = lj_lib_optint(L, 2, 1);
+  lua_settop(L, 1);
+  if (lua_isstring(L, 1) && level > 0) {
+    luaL_where(L, level);
+    lua_pushvalue(L, 1);
+    lua_concat(L, 2);
+  }
+  return lua_error(L);
+}
+
+LJLIB_ASM(pcall)		LJLIB_REC(.)
+{
+  lj_lib_checkany(L, 1);
+  lj_lib_checkfunc(L, 2);  /* For xpcall only. */
+  return FFH_UNREACHABLE;
+}
+LJLIB_ASM_(xpcall)		LJLIB_REC(.)
+
+/* -- Base library: load Lua code ----------------------------------------- */
+
+static int load_aux(lua_State *L, int status, int envarg)
+{
+  if (status == LUA_OK) {
+    if (tvistab(L->base+envarg-1)) {
+      GCfunc *fn = funcV(L->top-1);
+      GCtab *t = tabV(L->base+envarg-1);
+      setgcref(fn->c.env, obj2gco(t));
+      lj_gc_objbarrier(L, fn, t);
+    }
+    return 1;
+  } else {
+    setnilV(L->top-2);
+    return 2;
+  }
+}
+
+LJLIB_CF(loadfile)
+{
+  GCstr *fname = lj_lib_optstr(L, 1);
+  GCstr *mode = lj_lib_optstr(L, 2);
+  int status;
+  lua_settop(L, 3);  /* Ensure env arg exists. */
+  status = luaL_loadfilex(L, fname ? strdata(fname) : NULL,
+			  mode ? strdata(mode) : NULL);
+  return load_aux(L, status, 3);
+}
+
+static const char *reader_func(lua_State *L, void *ud, size_t *size)
+{
+  UNUSED(ud);
+  luaL_checkstack(L, 2, "too many nested functions");
+  copyTV(L, L->top++, L->base);
+  lua_call(L, 0, 1);  /* Call user-supplied function. */
+  L->top--;
+  if (tvisnil(L->top)) {
+    *size = 0;
+    return NULL;
+  } else if (tvisstr(L->top) || tvisnumber(L->top)) {
+    copyTV(L, L->base+4, L->top);  /* Anchor string in reserved stack slot. */
+    return lua_tolstring(L, 5, size);
+  } else {
+    lj_err_caller(L, LJ_ERR_RDRSTR);
+    return NULL;
+  }
+}
+
+LJLIB_CF(load)
+{
+  GCstr *name = lj_lib_optstr(L, 2);
+  GCstr *mode = lj_lib_optstr(L, 3);
+  int status;
+  if (L->base < L->top &&
+      (tvisstr(L->base) || tvisnumber(L->base) || tvisbuf(L->base))) {
+    const char *s;
+    MSize len;
+    if (tvisbuf(L->base)) {
+      SBufExt *sbx = bufV(L->base);
+      s = sbx->r;
+      len = sbufxlen(sbx);
+      if (!name) name = &G(L)->strempty;  /* Buffers are not NUL-terminated. */
+    } else {
+      GCstr *str = lj_lib_checkstr(L, 1);
+      s = strdata(str);
+      len = str->len;
+    }
+    lua_settop(L, 4);  /* Ensure env arg exists. */
+    status = luaL_loadbufferx(L, s, len, name ? strdata(name) : s,
+			      mode ? strdata(mode) : NULL);
+  } else {
+    lj_lib_checkfunc(L, 1);
+    lua_settop(L, 5);  /* Reserve a slot for the string from the reader. */
+    status = lua_loadx(L, reader_func, NULL, name ? strdata(name) : "=(load)",
+		       mode ? strdata(mode) : NULL);
+  }
+  return load_aux(L, status, 4);
+}
+
+LJLIB_CF(loadstring)
+{
+  return lj_cf_load(L);
+}
+
+LJLIB_CF(dofile)
+{
+  GCstr *fname = lj_lib_optstr(L, 1);
+  setnilV(L->top);
+  L->top = L->base+1;
+  if (luaL_loadfile(L, fname ? strdata(fname) : NULL) != LUA_OK)
+    lua_error(L);
+  lua_call(L, 0, LUA_MULTRET);
+  return (int)(L->top - L->base) - 1;
+}
+
+/* -- Base library: GC control -------------------------------------------- */
+
+LJLIB_CF(gcinfo)
+{
+  setintV(L->top++, (int32_t)(G(L)->gc.total >> 10));
+  return 1;
+}
+
+LJLIB_CF(collectgarbage)
+{
+  int opt = lj_lib_checkopt(L, 1, LUA_GCCOLLECT,  /* ORDER LUA_GC* */
+    "\4stop\7restart\7collect\5count\1\377\4step\10setpause\12setstepmul\1\377\11isrunning");
+  int32_t data = lj_lib_optint(L, 2, 0);
+  if (opt == LUA_GCCOUNT) {
+    setnumV(L->top, (lua_Number)G(L)->gc.total/1024.0);
+  } else {
+    int res = lua_gc(L, opt, data);
+    if (opt == LUA_GCSTEP || opt == LUA_GCISRUNNING)
+      setboolV(L->top, res);
+    else
+      setintV(L->top, res);
+  }
+  L->top++;
+  return 1;
+}
+
+/* -- Base library: miscellaneous functions ------------------------------- */
+
+LJLIB_PUSH(top-2)  /* Upvalue holds weak table. */
+LJLIB_CF(newproxy)
+{
+  lua_settop(L, 1);
+  lua_newuserdata(L, 0);
+  if (lua_toboolean(L, 1) == 0) {  /* newproxy(): without metatable. */
+    return 1;
+  } else if (lua_isboolean(L, 1)) {  /* newproxy(true): with metatable. */
+    lua_newtable(L);
+    lua_pushvalue(L, -1);
+    lua_pushboolean(L, 1);
+    lua_rawset(L, lua_upvalueindex(1));  /* Remember mt in weak table. */
+  } else {  /* newproxy(proxy): inherit metatable. */
+    int validproxy = 0;
+    if (lua_getmetatable(L, 1)) {
+      lua_rawget(L, lua_upvalueindex(1));
+      validproxy = lua_toboolean(L, -1);
+      lua_pop(L, 1);
+    }
+    if (!validproxy)
+      lj_err_arg(L, 1, LJ_ERR_NOPROXY);
+    lua_getmetatable(L, 1);
+  }
+  lua_setmetatable(L, 2);
+  return 1;
+}
+
+LJLIB_PUSH("tostring")
+LJLIB_CF(print)
+{
+  ptrdiff_t i, nargs = L->top - L->base;
+  cTValue *tv = lj_tab_getstr(tabref(L->env), strV(lj_lib_upvalue(L, 1)));
+  int shortcut;
+  if (tv && !tvisnil(tv)) {
+    copyTV(L, L->top++, tv);
+  } else {
+    setstrV(L, L->top++, strV(lj_lib_upvalue(L, 1)));
+    lua_gettable(L, LUA_GLOBALSINDEX);
+    tv = L->top-1;
+  }
+  shortcut = (tvisfunc(tv) && funcV(tv)->c.ffid == FF_tostring) &&
+	     !gcrefu(basemt_it(G(L), LJ_TNUMX));
+  for (i = 0; i < nargs; i++) {
+    cTValue *o = &L->base[i];
+    const char *str;
+    size_t size;
+    MSize len;
+    if (shortcut && (str = lj_strfmt_wstrnum(L, o, &len)) != NULL) {
+      size = len;
+    } else {
+      copyTV(L, L->top+1, o);
+      copyTV(L, L->top, L->top-1);
+      L->top += 2;
+      lua_call(L, 1, 1);
+      str = lua_tolstring(L, -1, &size);
+      if (!str)
+	lj_err_caller(L, LJ_ERR_PRTOSTR);
+      L->top--;
+    }
+    if (i)
+      putchar('\t');
+    fwrite(str, 1, size, stdout);
+  }
+  putchar('\n');
+  return 0;
+}
+
+LJLIB_PUSH(top-3)
+LJLIB_SET(_VERSION)
+
+#include "lj_libdef.h"
+
+/* -- Coroutine library --------------------------------------------------- */
+
+#define LJLIB_MODULE_coroutine
+
+LJLIB_CF(coroutine_status)
+{
+  const char *s;
+  lua_State *co;
+  if (!(L->top > L->base && tvisthread(L->base)))
+    lj_err_arg(L, 1, LJ_ERR_NOCORO);
+  co = threadV(L->base);
+  if (co == L) s = "running";
+  else if (co->status == LUA_YIELD) s = "suspended";
+  else if (co->status != LUA_OK) s = "dead";
+  else if (co->base > tvref(co->stack)+1+LJ_FR2) s = "normal";
+  else if (co->top == co->base) s = "dead";
+  else s = "suspended";
+  lua_pushstring(L, s);
+  return 1;
+}
+
+LJLIB_CF(coroutine_running)
+{
+#if LJ_52
+  int ismain = lua_pushthread(L);
+  setboolV(L->top++, ismain);
+  return 2;
+#else
+  if (lua_pushthread(L))
+    setnilV(L->top++);
+  return 1;
+#endif
+}
+
+LJLIB_CF(coroutine_isyieldable)
+{
+  setboolV(L->top++, cframe_canyield(L->cframe));
+  return 1;
+}
+
+LJLIB_CF(coroutine_create)
+{
+  lua_State *L1;
+  if (!(L->base < L->top && tvisfunc(L->base)))
+    lj_err_argt(L, 1, LUA_TFUNCTION);
+  L1 = lua_newthread(L);
+  setfuncV(L, L1->top++, funcV(L->base));
+  return 1;
+}
+
+LJLIB_ASM(coroutine_yield)
+{
+  lj_err_caller(L, LJ_ERR_CYIELD);
+  return FFH_UNREACHABLE;
+}
+
+static int ffh_resume(lua_State *L, lua_State *co, int wrap)
+{
+  if (co->cframe != NULL || co->status > LUA_YIELD ||
+      (co->status == LUA_OK && co->top == co->base)) {
+    ErrMsg em = co->cframe ? LJ_ERR_CORUN : LJ_ERR_CODEAD;
+    if (wrap) lj_err_caller(L, em);
+    setboolV(L->base-1-LJ_FR2, 0);
+    setstrV(L, L->base-LJ_FR2, lj_err_str(L, em));
+    return FFH_RES(2);
+  }
+  lj_state_growstack(co, (MSize)(L->top - L->base));
+  return FFH_RETRY;
+}
+
+LJLIB_ASM(coroutine_resume)
+{
+  if (!(L->top > L->base && tvisthread(L->base)))
+    lj_err_arg(L, 1, LJ_ERR_NOCORO);
+  return ffh_resume(L, threadV(L->base), 0);
+}
+
+LJLIB_NOREG LJLIB_ASM(coroutine_wrap_aux)
+{
+  return ffh_resume(L, threadV(lj_lib_upvalue(L, 1)), 1);
+}
+
+/* Inline declarations. */
+LJ_ASMF void lj_ff_coroutine_wrap_aux(void);
+#if !(LJ_TARGET_MIPS && defined(ljamalg_c))
+LJ_FUNCA_NORET void LJ_FASTCALL lj_ffh_coroutine_wrap_err(lua_State *L,
+							  lua_State *co);
+#endif
+
+/* Error handler, called from assembler VM. */
+void LJ_FASTCALL lj_ffh_coroutine_wrap_err(lua_State *L, lua_State *co)
+{
+  co->top--; copyTV(L, L->top, co->top); L->top++;
+  if (tvisstr(L->top-1))
+    lj_err_callermsg(L, strVdata(L->top-1));
+  else
+    lj_err_run(L);
+}
+
+/* Forward declaration. */
+static void setpc_wrap_aux(lua_State *L, GCfunc *fn);
+
+LJLIB_CF(coroutine_wrap)
+{
+  GCfunc *fn;
+  lj_cf_coroutine_create(L);
+  fn = lj_lib_pushcc(L, lj_ffh_coroutine_wrap_aux, FF_coroutine_wrap_aux, 1);
+  setpc_wrap_aux(L, fn);
+  return 1;
+}
+
+#include "lj_libdef.h"
+
+/* Fix the PC of wrap_aux. Really ugly workaround. */
+static void setpc_wrap_aux(lua_State *L, GCfunc *fn)
+{
+  setmref(fn->c.pc, &L2GG(L)->bcff[lj_lib_init_coroutine[1]+2]);
+}
+
+/* ------------------------------------------------------------------------ */
+
+static void newproxy_weaktable(lua_State *L)
+{
+  /* NOBARRIER: The table is new (marked white). */
+  GCtab *t = lj_tab_new(L, 0, 1);
+  settabV(L, L->top++, t);
+  setgcref(t->metatable, obj2gco(t));
+  setstrV(L, lj_tab_setstr(L, t, lj_str_newlit(L, "__mode")),
+	    lj_str_newlit(L, "kv"));
+  t->nomm = (uint8_t)(~(1u<<MM_mode));
+}
+
+LUALIB_API int luaopen_base(lua_State *L)
+{
+  /* NOBARRIER: Table and value are the same. */
+  GCtab *env = tabref(L->env);
+  settabV(L, lj_tab_setstr(L, env, lj_str_newlit(L, "_G")), env);
+  lua_pushliteral(L, LUA_VERSION);  /* top-3. */
+  newproxy_weaktable(L);  /* top-2. */
+  LJ_LIB_REG(L, "_G", base);
+  LJ_LIB_REG(L, LUA_COLIBNAME, coroutine);
+  return 2;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lib_bit.c b/libs/luajit-cmake/luajit/src/lib_bit.c
new file mode 100644
index 0000000..38c0f57
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lib_bit.c
@@ -0,0 +1,180 @@
+/*
+** Bit manipulation library.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lib_bit_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_strscan.h"
+#include "lj_strfmt.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#include "lj_cconv.h"
+#include "lj_carith.h"
+#endif
+#include "lj_ff.h"
+#include "lj_lib.h"
+
+/* ------------------------------------------------------------------------ */
+
+#define LJLIB_MODULE_bit
+
+#if LJ_HASFFI
+static int bit_result64(lua_State *L, CTypeID id, uint64_t x)
+{
+  GCcdata *cd = lj_cdata_new_(L, id, 8);
+  *(uint64_t *)cdataptr(cd) = x;
+  setcdataV(L, L->base-1-LJ_FR2, cd);
+  return FFH_RES(1);
+}
+#else
+static int32_t bit_checkbit(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (!(o < L->top && lj_strscan_numberobj(o)))
+    lj_err_argt(L, narg, LUA_TNUMBER);
+  if (LJ_LIKELY(tvisint(o))) {
+    return intV(o);
+  } else {
+    int32_t i = lj_num2bit(numV(o));
+    if (LJ_DUALNUM) setintV(o, i);
+    return i;
+  }
+}
+#endif
+
+LJLIB_ASM(bit_tobit)		LJLIB_REC(bit_tobit)
+{
+#if LJ_HASFFI
+  CTypeID id = 0;
+  setintV(L->base-1-LJ_FR2, (int32_t)lj_carith_check64(L, 1, &id));
+  return FFH_RES(1);
+#else
+  lj_lib_checknumber(L, 1);
+  return FFH_RETRY;
+#endif
+}
+
+LJLIB_ASM(bit_bnot)		LJLIB_REC(bit_unary IR_BNOT)
+{
+#if LJ_HASFFI
+  CTypeID id = 0;
+  uint64_t x = lj_carith_check64(L, 1, &id);
+  return id ? bit_result64(L, id, ~x) : FFH_RETRY;
+#else
+  lj_lib_checknumber(L, 1);
+  return FFH_RETRY;
+#endif
+}
+
+LJLIB_ASM(bit_bswap)		LJLIB_REC(bit_unary IR_BSWAP)
+{
+#if LJ_HASFFI
+  CTypeID id = 0;
+  uint64_t x = lj_carith_check64(L, 1, &id);
+  return id ? bit_result64(L, id, lj_bswap64(x)) : FFH_RETRY;
+#else
+  lj_lib_checknumber(L, 1);
+  return FFH_RETRY;
+#endif
+}
+
+LJLIB_ASM(bit_lshift)		LJLIB_REC(bit_shift IR_BSHL)
+{
+#if LJ_HASFFI
+  CTypeID id = 0, id2 = 0;
+  uint64_t x = lj_carith_check64(L, 1, &id);
+  int32_t sh = (int32_t)lj_carith_check64(L, 2, &id2);
+  if (id) {
+    x = lj_carith_shift64(x, sh, curr_func(L)->c.ffid - (int)FF_bit_lshift);
+    return bit_result64(L, id, x);
+  }
+  if (id2) setintV(L->base+1, sh);
+  return FFH_RETRY;
+#else
+  lj_lib_checknumber(L, 1);
+  bit_checkbit(L, 2);
+  return FFH_RETRY;
+#endif
+}
+LJLIB_ASM_(bit_rshift)		LJLIB_REC(bit_shift IR_BSHR)
+LJLIB_ASM_(bit_arshift)		LJLIB_REC(bit_shift IR_BSAR)
+LJLIB_ASM_(bit_rol)		LJLIB_REC(bit_shift IR_BROL)
+LJLIB_ASM_(bit_ror)		LJLIB_REC(bit_shift IR_BROR)
+
+LJLIB_ASM(bit_band)		LJLIB_REC(bit_nary IR_BAND)
+{
+#if LJ_HASFFI
+  CTypeID id = 0;
+  TValue *o = L->base, *top = L->top;
+  int i = 0;
+  do { lj_carith_check64(L, ++i, &id); } while (++o < top);
+  if (id) {
+    CTState *cts = ctype_cts(L);
+    CType *ct = ctype_get(cts, id);
+    int op = curr_func(L)->c.ffid - (int)FF_bit_bor;
+    uint64_t x, y = op >= 0 ? 0 : ~(uint64_t)0;
+    o = L->base;
+    do {
+      lj_cconv_ct_tv(cts, ct, (uint8_t *)&x, o, 0);
+      if (op < 0) y &= x; else if (op == 0) y |= x; else y ^= x;
+    } while (++o < top);
+    return bit_result64(L, id, y);
+  }
+  return FFH_RETRY;
+#else
+  int i = 0;
+  do { lj_lib_checknumber(L, ++i); } while (L->base+i < L->top);
+  return FFH_RETRY;
+#endif
+}
+LJLIB_ASM_(bit_bor)		LJLIB_REC(bit_nary IR_BOR)
+LJLIB_ASM_(bit_bxor)		LJLIB_REC(bit_nary IR_BXOR)
+
+/* ------------------------------------------------------------------------ */
+
+LJLIB_CF(bit_tohex)		LJLIB_REC(.)
+{
+#if LJ_HASFFI
+  CTypeID id = 0, id2 = 0;
+  uint64_t b = lj_carith_check64(L, 1, &id);
+  int32_t n = L->base+1>=L->top ? (id ? 16 : 8) :
+				  (int32_t)lj_carith_check64(L, 2, &id2);
+#else
+  uint32_t b = (uint32_t)bit_checkbit(L, 1);
+  int32_t n = L->base+1>=L->top ? 8 : bit_checkbit(L, 2);
+#endif
+  SBuf *sb = lj_buf_tmp_(L);
+  SFormat sf = (STRFMT_UINT|STRFMT_T_HEX);
+  if (n < 0) { n = -n; sf |= STRFMT_F_UPPER; }
+  sf |= ((SFormat)((n+1)&255) << STRFMT_SH_PREC);
+#if LJ_HASFFI
+  if (n < 16) b &= ((uint64_t)1 << 4*n)-1;
+#else
+  if (n < 8) b &= (1u << 4*n)-1;
+#endif
+  sb = lj_strfmt_putfxint(sb, sf, b);
+  setstrV(L, L->top-1, lj_buf_str(L, sb));
+  lj_gc_check(L);
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#include "lj_libdef.h"
+
+LUALIB_API int luaopen_bit(lua_State *L)
+{
+  LJ_LIB_REG(L, LUA_BITLIBNAME, bit);
+  return 1;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lib_buffer.c b/libs/luajit-cmake/luajit/src/lib_buffer.c
new file mode 100644
index 0000000..d6ff134
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lib_buffer.c
@@ -0,0 +1,360 @@
+/*
+** Buffer library.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lib_buffer_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+
+#if LJ_HASBUFFER
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_udata.h"
+#include "lj_meta.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#include "lj_cconv.h"
+#endif
+#include "lj_strfmt.h"
+#include "lj_serialize.h"
+#include "lj_lib.h"
+
+/* -- Helper functions ---------------------------------------------------- */
+
+/* Check that the first argument is a string buffer. */
+static SBufExt *buffer_tobuf(lua_State *L)
+{
+  if (!(L->base < L->top && tvisbuf(L->base)))
+    lj_err_argtype(L, 1, "buffer");
+  return bufV(L->base);
+}
+
+/* Ditto, but for writers. */
+static LJ_AINLINE SBufExt *buffer_tobufw(lua_State *L)
+{
+  SBufExt *sbx = buffer_tobuf(L);
+  setsbufXL_(sbx, L);
+  return sbx;
+}
+
+#define buffer_toudata(sbx)	((GCudata *)(sbx)-1)
+
+/* -- Buffer methods ------------------------------------------------------ */
+
+#define LJLIB_MODULE_buffer_method
+
+LJLIB_CF(buffer_method_free)
+{
+  SBufExt *sbx = buffer_tobuf(L);
+  lj_bufx_free(L, sbx);
+  L->top = L->base+1;  /* Chain buffer object. */
+  return 1;
+}
+
+LJLIB_CF(buffer_method_reset)		LJLIB_REC(.)
+{
+  SBufExt *sbx = buffer_tobuf(L);
+  lj_bufx_reset(sbx);
+  L->top = L->base+1;  /* Chain buffer object. */
+  return 1;
+}
+
+LJLIB_CF(buffer_method_skip)		LJLIB_REC(.)
+{
+  SBufExt *sbx = buffer_tobuf(L);
+  MSize n = (MSize)lj_lib_checkintrange(L, 2, 0, LJ_MAX_BUF);
+  MSize len = sbufxlen(sbx);
+  if (n < len) {
+    sbx->r += n;
+  } else if (sbufiscow(sbx)) {
+    sbx->r = sbx->w;
+  } else {
+    sbx->r = sbx->w = sbx->b;
+  }
+  L->top = L->base+1;  /* Chain buffer object. */
+  return 1;
+}
+
+LJLIB_CF(buffer_method_set)		LJLIB_REC(.)
+{
+  SBufExt *sbx = buffer_tobuf(L);
+  GCobj *ref;
+  const char *p;
+  MSize len;
+#if LJ_HASFFI
+  if (tviscdata(L->base+1)) {
+    CTState *cts = ctype_cts(L);
+    lj_cconv_ct_tv(cts, ctype_get(cts, CTID_P_CVOID), (uint8_t *)&p,
+		   L->base+1, CCF_ARG(2));
+    len = (MSize)lj_lib_checkintrange(L, 3, 0, LJ_MAX_BUF);
+  } else
+#endif
+  {
+    GCstr *str = lj_lib_checkstrx(L, 2);
+    p = strdata(str);
+    len = str->len;
+  }
+  lj_bufx_free(L, sbx);
+  lj_bufx_set_cow(L, sbx, p, len);
+  ref = gcV(L->base+1);
+  setgcref(sbx->cowref, ref);
+  lj_gc_objbarrier(L, buffer_toudata(sbx), ref);
+  L->top = L->base+1;  /* Chain buffer object. */
+  return 1;
+}
+
+LJLIB_CF(buffer_method_put)		LJLIB_REC(.)
+{
+  SBufExt *sbx = buffer_tobufw(L);
+  ptrdiff_t arg, narg = L->top - L->base;
+  for (arg = 1; arg < narg; arg++) {
+    cTValue *o = &L->base[arg], *mo = NULL;
+  retry:
+    if (tvisstr(o)) {
+      lj_buf_putstr((SBuf *)sbx, strV(o));
+    } else if (tvisint(o)) {
+      lj_strfmt_putint((SBuf *)sbx, intV(o));
+    } else if (tvisnum(o)) {
+      lj_strfmt_putfnum((SBuf *)sbx, STRFMT_G14, numV(o));
+    } else if (tvisbuf(o)) {
+      SBufExt *sbx2 = bufV(o);
+      if (sbx2 == sbx) lj_err_arg(L, (int)(arg+1), LJ_ERR_BUFFER_SELF);
+      lj_buf_putmem((SBuf *)sbx, sbx2->r, sbufxlen(sbx2));
+    } else if (!mo && !tvisnil(mo = lj_meta_lookup(L, o, MM_tostring))) {
+      /* Call __tostring metamethod inline. */
+      copyTV(L, L->top++, mo);
+      copyTV(L, L->top++, o);
+      lua_call(L, 1, 1);
+      o = &L->base[arg];  /* The stack may have been reallocated. */
+      copyTV(L, &L->base[arg], L->top-1);
+      L->top = L->base + narg;
+      goto retry;  /* Retry with the result. */
+    } else {
+      lj_err_argtype(L, (int)(arg+1), "string/number/__tostring");
+    }
+    /* Probably not useful to inline other __tostring MMs, e.g. FFI numbers. */
+  }
+  L->top = L->base+1;  /* Chain buffer object. */
+  lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_CF(buffer_method_putf)		LJLIB_REC(.)
+{
+  SBufExt *sbx = buffer_tobufw(L);
+  lj_strfmt_putarg(L, (SBuf *)sbx, 2, 2);
+  L->top = L->base+1;  /* Chain buffer object. */
+  lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_CF(buffer_method_get)		LJLIB_REC(.)
+{
+  SBufExt *sbx = buffer_tobuf(L);
+  ptrdiff_t arg, narg = L->top - L->base;
+  if (narg == 1) {
+    narg++;
+    setnilV(L->top++);  /* get() is the same as get(nil). */
+  }
+  for (arg = 1; arg < narg; arg++) {
+    TValue *o = &L->base[arg];
+    MSize n = tvisnil(o) ? LJ_MAX_BUF :
+	      (MSize) lj_lib_checkintrange(L, (int)(arg+1), 0, LJ_MAX_BUF);
+    MSize len = sbufxlen(sbx);
+    if (n > len) n = len;
+    setstrV(L, o, lj_str_new(L, sbx->r, n));
+    sbx->r += n;
+  }
+  if (sbx->r == sbx->w && !sbufiscow(sbx)) sbx->r = sbx->w = sbx->b;
+  lj_gc_check(L);
+  return (int)(narg-1);
+}
+
+#if LJ_HASFFI
+LJLIB_CF(buffer_method_putcdata)	LJLIB_REC(.)
+{
+  SBufExt *sbx = buffer_tobufw(L);
+  const char *p;
+  MSize len;
+  if (tviscdata(L->base+1)) {
+    CTState *cts = ctype_cts(L);
+    lj_cconv_ct_tv(cts, ctype_get(cts, CTID_P_CVOID), (uint8_t *)&p,
+		   L->base+1, CCF_ARG(2));
+  } else {
+    lj_err_argtype(L, 2, "cdata");
+  }
+  len = (MSize)lj_lib_checkintrange(L, 3, 0, LJ_MAX_BUF);
+  lj_buf_putmem((SBuf *)sbx, p, len);
+  L->top = L->base+1;  /* Chain buffer object. */
+  return 1;
+}
+
+LJLIB_CF(buffer_method_reserve)		LJLIB_REC(.)
+{
+  SBufExt *sbx = buffer_tobufw(L);
+  MSize sz = (MSize)lj_lib_checkintrange(L, 2, 0, LJ_MAX_BUF);
+  GCcdata *cd;
+  lj_buf_more((SBuf *)sbx, sz);
+  ctype_loadffi(L);
+  cd = lj_cdata_new_(L, CTID_P_UINT8, CTSIZE_PTR);
+  *(void **)cdataptr(cd) = sbx->w;
+  setcdataV(L, L->top++, cd);
+  setintV(L->top++, sbufleft(sbx));
+  return 2;
+}
+
+LJLIB_CF(buffer_method_commit)		LJLIB_REC(.)
+{
+  SBufExt *sbx = buffer_tobuf(L);
+  MSize len = (MSize)lj_lib_checkintrange(L, 2, 0, LJ_MAX_BUF);
+  if (len > sbufleft(sbx)) lj_err_arg(L, 2, LJ_ERR_NUMRNG);
+  sbx->w += len;
+  L->top = L->base+1;  /* Chain buffer object. */
+  return 1;
+}
+
+LJLIB_CF(buffer_method_ref)		LJLIB_REC(.)
+{
+  SBufExt *sbx = buffer_tobuf(L);
+  GCcdata *cd;
+  ctype_loadffi(L);
+  cd = lj_cdata_new_(L, CTID_P_UINT8, CTSIZE_PTR);
+  *(void **)cdataptr(cd) = sbx->r;
+  setcdataV(L, L->top++, cd);
+  setintV(L->top++, sbufxlen(sbx));
+  return 2;
+}
+#endif
+
+LJLIB_CF(buffer_method_encode)		LJLIB_REC(.)
+{
+  SBufExt *sbx = buffer_tobufw(L);
+  cTValue *o = lj_lib_checkany(L, 2);
+  lj_serialize_put(sbx, o);
+  lj_gc_check(L);
+  L->top = L->base+1;  /* Chain buffer object. */
+  return 1;
+}
+
+LJLIB_CF(buffer_method_decode)		LJLIB_REC(.)
+{
+  SBufExt *sbx = buffer_tobufw(L);
+  setnilV(L->top++);
+  sbx->r = lj_serialize_get(sbx, L->top-1);
+  lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_CF(buffer_method___gc)
+{
+  SBufExt *sbx = buffer_tobuf(L);
+  lj_bufx_free(L, sbx);
+  return 0;
+}
+
+LJLIB_CF(buffer_method___tostring)	LJLIB_REC(.)
+{
+  SBufExt *sbx = buffer_tobuf(L);
+  setstrV(L, L->top-1, lj_str_new(L, sbx->r, sbufxlen(sbx)));
+  lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_CF(buffer_method___len)		LJLIB_REC(.)
+{
+  SBufExt *sbx = buffer_tobuf(L);
+  setintV(L->top-1, (int32_t)sbufxlen(sbx));
+  return 1;
+}
+
+LJLIB_PUSH("buffer") LJLIB_SET(__metatable)
+LJLIB_PUSH(top-1) LJLIB_SET(__index)
+
+/* -- Buffer library functions -------------------------------------------- */
+
+#define LJLIB_MODULE_buffer
+
+LJLIB_PUSH(top-2) LJLIB_SET(!)  /* Set environment. */
+
+LJLIB_CF(buffer_new)
+{
+  MSize sz = 0;
+  int targ = 1;
+  GCtab *env, *dict_str = NULL, *dict_mt = NULL;
+  GCudata *ud;
+  SBufExt *sbx;
+  if (L->base < L->top && !tvistab(L->base)) {
+    targ = 2;
+    if (!tvisnil(L->base))
+      sz = (MSize)lj_lib_checkintrange(L, 1, 0, LJ_MAX_BUF);
+  }
+  if (L->base+targ-1 < L->top) {
+    GCtab *options = lj_lib_checktab(L, targ);
+    cTValue *opt_dict, *opt_mt;
+    opt_dict = lj_tab_getstr(options, lj_str_newlit(L, "dict"));
+    if (opt_dict && tvistab(opt_dict)) {
+      dict_str = tabV(opt_dict);
+      lj_serialize_dict_prep_str(L, dict_str);
+    }
+    opt_mt = lj_tab_getstr(options, lj_str_newlit(L, "metatable"));
+    if (opt_mt && tvistab(opt_mt)) {
+      dict_mt = tabV(opt_mt);
+      lj_serialize_dict_prep_mt(L, dict_mt);
+    }
+  }
+  env = tabref(curr_func(L)->c.env);
+  ud = lj_udata_new(L, sizeof(SBufExt), env);
+  ud->udtype = UDTYPE_BUFFER;
+  /* NOBARRIER: The GCudata is new (marked white). */
+  setgcref(ud->metatable, obj2gco(env));
+  setudataV(L, L->top++, ud);
+  sbx = (SBufExt *)uddata(ud);
+  lj_bufx_init(L, sbx);
+  setgcref(sbx->dict_str, obj2gco(dict_str));
+  setgcref(sbx->dict_mt, obj2gco(dict_mt));
+  if (sz > 0) lj_buf_need2((SBuf *)sbx, sz);
+  lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_CF(buffer_encode)			LJLIB_REC(.)
+{
+  cTValue *o = lj_lib_checkany(L, 1);
+  setstrV(L, L->top++, lj_serialize_encode(L, o));
+  lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_CF(buffer_decode)			LJLIB_REC(.)
+{
+  GCstr *str = lj_lib_checkstrx(L, 1);
+  setnilV(L->top++);
+  lj_serialize_decode(L, L->top-1, str);
+  lj_gc_check(L);
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#include "lj_libdef.h"
+
+int luaopen_string_buffer(lua_State *L)
+{
+  LJ_LIB_REG(L, NULL, buffer_method);
+  lua_getfield(L, -1, "__tostring");
+  lua_setfield(L, -2, "tostring");
+  LJ_LIB_REG(L, NULL, buffer);
+  return 1;
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lib_debug.c b/libs/luajit-cmake/luajit/src/lib_debug.c
new file mode 100644
index 0000000..3af7a35
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lib_debug.c
@@ -0,0 +1,406 @@
+/*
+** Debug library.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lib_debug_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_lib.h"
+
+/* ------------------------------------------------------------------------ */
+
+#define LJLIB_MODULE_debug
+
+LJLIB_CF(debug_getregistry)
+{
+  copyTV(L, L->top++, registry(L));
+  return 1;
+}
+
+LJLIB_CF(debug_getmetatable)	LJLIB_REC(.)
+{
+  lj_lib_checkany(L, 1);
+  if (!lua_getmetatable(L, 1)) {
+    setnilV(L->top-1);
+  }
+  return 1;
+}
+
+LJLIB_CF(debug_setmetatable)
+{
+  lj_lib_checktabornil(L, 2);
+  L->top = L->base+2;
+  lua_setmetatable(L, 1);
+#if !LJ_52
+  setboolV(L->top-1, 1);
+#endif
+  return 1;
+}
+
+LJLIB_CF(debug_getfenv)
+{
+  lj_lib_checkany(L, 1);
+  lua_getfenv(L, 1);
+  return 1;
+}
+
+LJLIB_CF(debug_setfenv)
+{
+  lj_lib_checktab(L, 2);
+  L->top = L->base+2;
+  if (!lua_setfenv(L, 1))
+    lj_err_caller(L, LJ_ERR_SETFENV);
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static void settabss(lua_State *L, const char *i, const char *v)
+{
+  lua_pushstring(L, v);
+  lua_setfield(L, -2, i);
+}
+
+static void settabsi(lua_State *L, const char *i, int v)
+{
+  lua_pushinteger(L, v);
+  lua_setfield(L, -2, i);
+}
+
+static void settabsb(lua_State *L, const char *i, int v)
+{
+  lua_pushboolean(L, v);
+  lua_setfield(L, -2, i);
+}
+
+static lua_State *getthread(lua_State *L, int *arg)
+{
+  if (L->base < L->top && tvisthread(L->base)) {
+    *arg = 1;
+    return threadV(L->base);
+  } else {
+    *arg = 0;
+    return L;
+  }
+}
+
+static void treatstackoption(lua_State *L, lua_State *L1, const char *fname)
+{
+  if (L == L1) {
+    lua_pushvalue(L, -2);
+    lua_remove(L, -3);
+  }
+  else
+    lua_xmove(L1, L, 1);
+  lua_setfield(L, -2, fname);
+}
+
+LJLIB_CF(debug_getinfo)
+{
+  lj_Debug ar;
+  int arg, opt_f = 0, opt_L = 0;
+  lua_State *L1 = getthread(L, &arg);
+  const char *options = luaL_optstring(L, arg+2, "flnSu");
+  if (lua_isnumber(L, arg+1)) {
+    if (!lua_getstack(L1, (int)lua_tointeger(L, arg+1), (lua_Debug *)&ar)) {
+      setnilV(L->top-1);
+      return 1;
+    }
+  } else if (L->base+arg < L->top && tvisfunc(L->base+arg)) {
+    options = lua_pushfstring(L, ">%s", options);
+    setfuncV(L1, L1->top++, funcV(L->base+arg));
+  } else {
+    lj_err_arg(L, arg+1, LJ_ERR_NOFUNCL);
+  }
+  if (!lj_debug_getinfo(L1, options, &ar, 1))
+    lj_err_arg(L, arg+2, LJ_ERR_INVOPT);
+  lua_createtable(L, 0, 16);  /* Create result table. */
+  for (; *options; options++) {
+    switch (*options) {
+    case 'S':
+      settabss(L, "source", ar.source);
+      settabss(L, "short_src", ar.short_src);
+      settabsi(L, "linedefined", ar.linedefined);
+      settabsi(L, "lastlinedefined", ar.lastlinedefined);
+      settabss(L, "what", ar.what);
+      break;
+    case 'l':
+      settabsi(L, "currentline", ar.currentline);
+      break;
+    case 'u':
+      settabsi(L, "nups", ar.nups);
+      settabsi(L, "nparams", ar.nparams);
+      settabsb(L, "isvararg", ar.isvararg);
+      break;
+    case 'n':
+      settabss(L, "name", ar.name);
+      settabss(L, "namewhat", ar.namewhat);
+      break;
+    case 'f': opt_f = 1; break;
+    case 'L': opt_L = 1; break;
+    default: break;
+    }
+  }
+  if (opt_L) treatstackoption(L, L1, "activelines");
+  if (opt_f) treatstackoption(L, L1, "func");
+  return 1;  /* Return result table. */
+}
+
+LJLIB_CF(debug_getlocal)
+{
+  int arg;
+  lua_State *L1 = getthread(L, &arg);
+  lua_Debug ar;
+  const char *name;
+  int slot = lj_lib_checkint(L, arg+2);
+  if (tvisfunc(L->base+arg)) {
+    L->top = L->base+arg+1;
+    lua_pushstring(L, lua_getlocal(L, NULL, slot));
+    return 1;
+  }
+  if (!lua_getstack(L1, lj_lib_checkint(L, arg+1), &ar))
+    lj_err_arg(L, arg+1, LJ_ERR_LVLRNG);
+  name = lua_getlocal(L1, &ar, slot);
+  if (name) {
+    lua_xmove(L1, L, 1);
+    lua_pushstring(L, name);
+    lua_pushvalue(L, -2);
+    return 2;
+  } else {
+    setnilV(L->top-1);
+    return 1;
+  }
+}
+
+LJLIB_CF(debug_setlocal)
+{
+  int arg;
+  lua_State *L1 = getthread(L, &arg);
+  lua_Debug ar;
+  TValue *tv;
+  if (!lua_getstack(L1, lj_lib_checkint(L, arg+1), &ar))
+    lj_err_arg(L, arg+1, LJ_ERR_LVLRNG);
+  tv = lj_lib_checkany(L, arg+3);
+  copyTV(L1, L1->top++, tv);
+  lua_pushstring(L, lua_setlocal(L1, &ar, lj_lib_checkint(L, arg+2)));
+  return 1;
+}
+
+static int debug_getupvalue(lua_State *L, int get)
+{
+  int32_t n = lj_lib_checkint(L, 2);
+  const char *name;
+  lj_lib_checkfunc(L, 1);
+  name = get ? lua_getupvalue(L, 1, n) : lua_setupvalue(L, 1, n);
+  if (name) {
+    lua_pushstring(L, name);
+    if (!get) return 1;
+    copyTV(L, L->top, L->top-2);
+    L->top++;
+    return 2;
+  }
+  return 0;
+}
+
+LJLIB_CF(debug_getupvalue)
+{
+  return debug_getupvalue(L, 1);
+}
+
+LJLIB_CF(debug_setupvalue)
+{
+  lj_lib_checkany(L, 3);
+  return debug_getupvalue(L, 0);
+}
+
+LJLIB_CF(debug_upvalueid)
+{
+  GCfunc *fn = lj_lib_checkfunc(L, 1);
+  int32_t n = lj_lib_checkint(L, 2) - 1;
+  if ((uint32_t)n >= fn->l.nupvalues)
+    lj_err_arg(L, 2, LJ_ERR_IDXRNG);
+  lua_pushlightuserdata(L, isluafunc(fn) ? (void *)gcref(fn->l.uvptr[n]) :
+					   (void *)&fn->c.upvalue[n]);
+  return 1;
+}
+
+LJLIB_CF(debug_upvaluejoin)
+{
+  GCfunc *fn[2];
+  GCRef *p[2];
+  int i;
+  for (i = 0; i < 2; i++) {
+    int32_t n;
+    fn[i] = lj_lib_checkfunc(L, 2*i+1);
+    if (!isluafunc(fn[i]))
+      lj_err_arg(L, 2*i+1, LJ_ERR_NOLFUNC);
+    n = lj_lib_checkint(L, 2*i+2) - 1;
+    if ((uint32_t)n >= fn[i]->l.nupvalues)
+      lj_err_arg(L, 2*i+2, LJ_ERR_IDXRNG);
+    p[i] = &fn[i]->l.uvptr[n];
+  }
+  setgcrefr(*p[0], *p[1]);
+  lj_gc_objbarrier(L, fn[0], gcref(*p[1]));
+  return 0;
+}
+
+#if LJ_52
+LJLIB_CF(debug_getuservalue)
+{
+  TValue *o = L->base;
+  if (o < L->top && tvisudata(o))
+    settabV(L, o, tabref(udataV(o)->env));
+  else
+    setnilV(o);
+  L->top = o+1;
+  return 1;
+}
+
+LJLIB_CF(debug_setuservalue)
+{
+  TValue *o = L->base;
+  if (!(o < L->top && tvisudata(o)))
+    lj_err_argt(L, 1, LUA_TUSERDATA);
+  if (!(o+1 < L->top && tvistab(o+1)))
+    lj_err_argt(L, 2, LUA_TTABLE);
+  L->top = o+2;
+  lua_setfenv(L, 1);
+  return 1;
+}
+#endif
+
+/* ------------------------------------------------------------------------ */
+
+#define KEY_HOOK	(U64x(80000000,00000000)|'h')
+
+static void hookf(lua_State *L, lua_Debug *ar)
+{
+  static const char *const hooknames[] =
+    {"call", "return", "line", "count", "tail return"};
+  (L->top++)->u64 = KEY_HOOK;
+  lua_rawget(L, LUA_REGISTRYINDEX);
+  if (lua_isfunction(L, -1)) {
+    lua_pushstring(L, hooknames[(int)ar->event]);
+    if (ar->currentline >= 0)
+      lua_pushinteger(L, ar->currentline);
+    else lua_pushnil(L);
+    lua_call(L, 2, 0);
+  }
+}
+
+static int makemask(const char *smask, int count)
+{
+  int mask = 0;
+  if (strchr(smask, 'c')) mask |= LUA_MASKCALL;
+  if (strchr(smask, 'r')) mask |= LUA_MASKRET;
+  if (strchr(smask, 'l')) mask |= LUA_MASKLINE;
+  if (count > 0) mask |= LUA_MASKCOUNT;
+  return mask;
+}
+
+static char *unmakemask(int mask, char *smask)
+{
+  int i = 0;
+  if (mask & LUA_MASKCALL) smask[i++] = 'c';
+  if (mask & LUA_MASKRET) smask[i++] = 'r';
+  if (mask & LUA_MASKLINE) smask[i++] = 'l';
+  smask[i] = '\0';
+  return smask;
+}
+
+LJLIB_CF(debug_sethook)
+{
+  int arg, mask, count;
+  lua_Hook func;
+  (void)getthread(L, &arg);
+  if (lua_isnoneornil(L, arg+1)) {
+    lua_settop(L, arg+1);
+    func = NULL; mask = 0; count = 0;  /* turn off hooks */
+  } else {
+    const char *smask = luaL_checkstring(L, arg+2);
+    luaL_checktype(L, arg+1, LUA_TFUNCTION);
+    count = luaL_optint(L, arg+3, 0);
+    func = hookf; mask = makemask(smask, count);
+  }
+  (L->top++)->u64 = KEY_HOOK;
+  lua_pushvalue(L, arg+1);
+  lua_rawset(L, LUA_REGISTRYINDEX);
+  lua_sethook(L, func, mask, count);
+  return 0;
+}
+
+LJLIB_CF(debug_gethook)
+{
+  char buff[5];
+  int mask = lua_gethookmask(L);
+  lua_Hook hook = lua_gethook(L);
+  if (hook != NULL && hook != hookf) {  /* external hook? */
+    lua_pushliteral(L, "external hook");
+  } else {
+    (L->top++)->u64 = KEY_HOOK;
+    lua_rawget(L, LUA_REGISTRYINDEX);   /* get hook */
+  }
+  lua_pushstring(L, unmakemask(mask, buff));
+  lua_pushinteger(L, lua_gethookcount(L));
+  return 3;
+}
+
+/* ------------------------------------------------------------------------ */
+
+LJLIB_CF(debug_debug)
+{
+  for (;;) {
+    char buffer[250];
+    fputs("lua_debug> ", stderr);
+    if (fgets(buffer, sizeof(buffer), stdin) == 0 ||
+	strcmp(buffer, "cont\n") == 0)
+      return 0;
+    if (luaL_loadbuffer(L, buffer, strlen(buffer), "=(debug command)") ||
+	lua_pcall(L, 0, 0, 0)) {
+      const char *s = lua_tostring(L, -1);
+      fputs(s ? s : "(error object is not a string)", stderr);
+      fputs("\n", stderr);
+    }
+    lua_settop(L, 0);  /* remove eventual returns */
+  }
+}
+
+/* ------------------------------------------------------------------------ */
+
+#define LEVELS1	12	/* size of the first part of the stack */
+#define LEVELS2	10	/* size of the second part of the stack */
+
+LJLIB_CF(debug_traceback)
+{
+  int arg;
+  lua_State *L1 = getthread(L, &arg);
+  const char *msg = lua_tostring(L, arg+1);
+  if (msg == NULL && L->top > L->base+arg)
+    L->top = L->base+arg+1;
+  else
+    luaL_traceback(L, L1, msg, lj_lib_optint(L, arg+2, (L == L1)));
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#include "lj_libdef.h"
+
+LUALIB_API int luaopen_debug(lua_State *L)
+{
+  LJ_LIB_REG(L, LUA_DBLIBNAME, debug);
+  return 1;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lib_ffi.c b/libs/luajit-cmake/luajit/src/lib_ffi.c
new file mode 100644
index 0000000..2295cf1
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lib_ffi.c
@@ -0,0 +1,870 @@
+/*
+** FFI library.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lib_ffi_c
+#define LUA_LIB
+
+#include <errno.h>
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_meta.h"
+#include "lj_ctype.h"
+#include "lj_cparse.h"
+#include "lj_cdata.h"
+#include "lj_cconv.h"
+#include "lj_carith.h"
+#include "lj_ccall.h"
+#include "lj_ccallback.h"
+#include "lj_clib.h"
+#include "lj_strfmt.h"
+#include "lj_ff.h"
+#include "lj_lib.h"
+
+/* -- C type checks ------------------------------------------------------- */
+
+/* Check first argument for a C type and returns its ID. */
+static CTypeID ffi_checkctype(lua_State *L, CTState *cts, TValue *param)
+{
+  TValue *o = L->base;
+  if (!(o < L->top)) {
+  err_argtype:
+    lj_err_argtype(L, 1, "C type");
+  }
+  if (tvisstr(o)) {  /* Parse an abstract C type declaration. */
+    GCstr *s = strV(o);
+    CPState cp;
+    int errcode;
+    cp.L = L;
+    cp.cts = cts;
+    cp.srcname = strdata(s);
+    cp.p = strdata(s);
+    cp.param = param;
+    cp.mode = CPARSE_MODE_ABSTRACT|CPARSE_MODE_NOIMPLICIT;
+    errcode = lj_cparse(&cp);
+    if (errcode) lj_err_throw(L, errcode);  /* Propagate errors. */
+    return cp.val.id;
+  } else {
+    GCcdata *cd;
+    if (!tviscdata(o)) goto err_argtype;
+    if (param && param < L->top) lj_err_arg(L, 1, LJ_ERR_FFI_NUMPARAM);
+    cd = cdataV(o);
+    return cd->ctypeid == CTID_CTYPEID ? *(CTypeID *)cdataptr(cd) : cd->ctypeid;
+  }
+}
+
+/* Check argument for C data and return it. */
+static GCcdata *ffi_checkcdata(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (!(o < L->top && tviscdata(o)))
+    lj_err_argt(L, narg, LUA_TCDATA);
+  return cdataV(o);
+}
+
+/* Convert argument to C pointer. */
+static void *ffi_checkptr(lua_State *L, int narg, CTypeID id)
+{
+  CTState *cts = ctype_cts(L);
+  TValue *o = L->base + narg-1;
+  void *p;
+  if (o >= L->top)
+    lj_err_arg(L, narg, LJ_ERR_NOVAL);
+  lj_cconv_ct_tv(cts, ctype_get(cts, id), (uint8_t *)&p, o, CCF_ARG(narg));
+  return p;
+}
+
+/* Convert argument to int32_t. */
+static int32_t ffi_checkint(lua_State *L, int narg)
+{
+  CTState *cts = ctype_cts(L);
+  TValue *o = L->base + narg-1;
+  int32_t i;
+  if (o >= L->top)
+    lj_err_arg(L, narg, LJ_ERR_NOVAL);
+  lj_cconv_ct_tv(cts, ctype_get(cts, CTID_INT32), (uint8_t *)&i, o,
+		 CCF_ARG(narg));
+  return i;
+}
+
+/* -- C type metamethods -------------------------------------------------- */
+
+#define LJLIB_MODULE_ffi_meta
+
+/* Handle ctype __index/__newindex metamethods. */
+static int ffi_index_meta(lua_State *L, CTState *cts, CType *ct, MMS mm)
+{
+  CTypeID id = ctype_typeid(cts, ct);
+  cTValue *tv = lj_ctype_meta(cts, id, mm);
+  TValue *base = L->base;
+  if (!tv) {
+    const char *s;
+  err_index:
+    s = strdata(lj_ctype_repr(L, id, NULL));
+    if (tvisstr(L->base+1)) {
+      lj_err_callerv(L, LJ_ERR_FFI_BADMEMBER, s, strVdata(L->base+1));
+    } else {
+      const char *key = tviscdata(L->base+1) ?
+	strdata(lj_ctype_repr(L, cdataV(L->base+1)->ctypeid, NULL)) :
+	lj_typename(L->base+1);
+      lj_err_callerv(L, LJ_ERR_FFI_BADIDXW, s, key);
+    }
+  }
+  if (!tvisfunc(tv)) {
+    if (mm == MM_index) {
+      cTValue *o = lj_meta_tget(L, tv, base+1);
+      if (o) {
+	if (tvisnil(o)) goto err_index;
+	copyTV(L, L->top-1, o);
+	return 1;
+      }
+    } else {
+      TValue *o = lj_meta_tset(L, tv, base+1);
+      if (o) {
+	copyTV(L, o, base+2);
+	return 0;
+      }
+    }
+    copyTV(L, base, L->top);
+    tv = L->top-1-LJ_FR2;
+  }
+  return lj_meta_tailcall(L, tv);
+}
+
+LJLIB_CF(ffi_meta___index)	LJLIB_REC(cdata_index 0)
+{
+  CTState *cts = ctype_cts(L);
+  CTInfo qual = 0;
+  CType *ct;
+  uint8_t *p;
+  TValue *o = L->base;
+  if (!(o+1 < L->top && tviscdata(o)))  /* Also checks for presence of key. */
+    lj_err_argt(L, 1, LUA_TCDATA);
+  ct = lj_cdata_index(cts, cdataV(o), o+1, &p, &qual);
+  if ((qual & 1))
+    return ffi_index_meta(L, cts, ct, MM_index);
+  if (lj_cdata_get(cts, ct, L->top-1, p))
+    lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_CF(ffi_meta___newindex)	LJLIB_REC(cdata_index 1)
+{
+  CTState *cts = ctype_cts(L);
+  CTInfo qual = 0;
+  CType *ct;
+  uint8_t *p;
+  TValue *o = L->base;
+  if (!(o+2 < L->top && tviscdata(o)))  /* Also checks for key and value. */
+    lj_err_argt(L, 1, LUA_TCDATA);
+  ct = lj_cdata_index(cts, cdataV(o), o+1, &p, &qual);
+  if ((qual & 1)) {
+    if ((qual & CTF_CONST))
+      lj_err_caller(L, LJ_ERR_FFI_WRCONST);
+    return ffi_index_meta(L, cts, ct, MM_newindex);
+  }
+  lj_cdata_set(cts, ct, p, o+2, qual);
+  return 0;
+}
+
+/* Common handler for cdata arithmetic. */
+static int ffi_arith(lua_State *L)
+{
+  MMS mm = (MMS)(curr_func(L)->c.ffid - (int)FF_ffi_meta___eq + (int)MM_eq);
+  return lj_carith_op(L, mm);
+}
+
+/* The following functions must be in contiguous ORDER MM. */
+LJLIB_CF(ffi_meta___eq)		LJLIB_REC(cdata_arith MM_eq)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___len)	LJLIB_REC(cdata_arith MM_len)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___lt)		LJLIB_REC(cdata_arith MM_lt)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___le)		LJLIB_REC(cdata_arith MM_le)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___concat)	LJLIB_REC(cdata_arith MM_concat)
+{
+  return ffi_arith(L);
+}
+
+/* Forward declaration. */
+static int lj_cf_ffi_new(lua_State *L);
+
+LJLIB_CF(ffi_meta___call)	LJLIB_REC(cdata_call)
+{
+  CTState *cts = ctype_cts(L);
+  GCcdata *cd = ffi_checkcdata(L, 1);
+  CTypeID id = cd->ctypeid;
+  CType *ct;
+  cTValue *tv;
+  MMS mm = MM_call;
+  if (cd->ctypeid == CTID_CTYPEID) {
+    id = *(CTypeID *)cdataptr(cd);
+    mm = MM_new;
+  } else {
+    int ret = lj_ccall_func(L, cd);
+    if (ret >= 0)
+      return ret;
+  }
+  /* Handle ctype __call/__new metamethod. */
+  ct = ctype_raw(cts, id);
+  if (ctype_isptr(ct->info)) id = ctype_cid(ct->info);
+  tv = lj_ctype_meta(cts, id, mm);
+  if (tv)
+    return lj_meta_tailcall(L, tv);
+  else if (mm == MM_call)
+    lj_err_callerv(L, LJ_ERR_FFI_BADCALL, strdata(lj_ctype_repr(L, id, NULL)));
+  return lj_cf_ffi_new(L);
+}
+
+LJLIB_CF(ffi_meta___add)	LJLIB_REC(cdata_arith MM_add)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___sub)	LJLIB_REC(cdata_arith MM_sub)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___mul)	LJLIB_REC(cdata_arith MM_mul)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___div)	LJLIB_REC(cdata_arith MM_div)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___mod)	LJLIB_REC(cdata_arith MM_mod)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___pow)	LJLIB_REC(cdata_arith MM_pow)
+{
+  return ffi_arith(L);
+}
+
+LJLIB_CF(ffi_meta___unm)	LJLIB_REC(cdata_arith MM_unm)
+{
+  return ffi_arith(L);
+}
+/* End of contiguous ORDER MM. */
+
+LJLIB_CF(ffi_meta___tostring)
+{
+  GCcdata *cd = ffi_checkcdata(L, 1);
+  const char *msg = "cdata<%s>: %p";
+  CTypeID id = cd->ctypeid;
+  void *p = cdataptr(cd);
+  if (id == CTID_CTYPEID) {
+    msg = "ctype<%s>";
+    id = *(CTypeID *)p;
+  } else {
+    CTState *cts = ctype_cts(L);
+    CType *ct = ctype_raw(cts, id);
+    if (ctype_isref(ct->info)) {
+      p = *(void **)p;
+      ct = ctype_rawchild(cts, ct);
+    }
+    if (ctype_iscomplex(ct->info)) {
+      setstrV(L, L->top-1, lj_ctype_repr_complex(L, cdataptr(cd), ct->size));
+      goto checkgc;
+    } else if (ct->size == 8 && ctype_isinteger(ct->info)) {
+      setstrV(L, L->top-1, lj_ctype_repr_int64(L, *(uint64_t *)cdataptr(cd),
+					       (ct->info & CTF_UNSIGNED)));
+      goto checkgc;
+    } else if (ctype_isfunc(ct->info)) {
+      p = *(void **)p;
+    } else if (ctype_isenum(ct->info)) {
+      msg = "cdata<%s>: %d";
+      p = (void *)(uintptr_t)*(uint32_t **)p;
+    } else {
+      if (ctype_isptr(ct->info)) {
+	p = cdata_getptr(p, ct->size);
+	ct = ctype_rawchild(cts, ct);
+      }
+      if (ctype_isstruct(ct->info) || ctype_isvector(ct->info)) {
+	/* Handle ctype __tostring metamethod. */
+	cTValue *tv = lj_ctype_meta(cts, ctype_typeid(cts, ct), MM_tostring);
+	if (tv)
+	  return lj_meta_tailcall(L, tv);
+      }
+    }
+  }
+  lj_strfmt_pushf(L, msg, strdata(lj_ctype_repr(L, id, NULL)), p);
+checkgc:
+  lj_gc_check(L);
+  return 1;
+}
+
+static int ffi_pairs(lua_State *L, MMS mm)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkcdata(L, 1)->ctypeid;
+  CType *ct = ctype_raw(cts, id);
+  cTValue *tv;
+  if (ctype_isptr(ct->info)) id = ctype_cid(ct->info);
+  tv = lj_ctype_meta(cts, id, mm);
+  if (!tv)
+    lj_err_callerv(L, LJ_ERR_FFI_BADMM, strdata(lj_ctype_repr(L, id, NULL)),
+		   strdata(mmname_str(G(L), mm)));
+  return lj_meta_tailcall(L, tv);
+}
+
+LJLIB_CF(ffi_meta___pairs)
+{
+  return ffi_pairs(L, MM_pairs);
+}
+
+LJLIB_CF(ffi_meta___ipairs)
+{
+  return ffi_pairs(L, MM_ipairs);
+}
+
+LJLIB_PUSH("ffi") LJLIB_SET(__metatable)
+
+#include "lj_libdef.h"
+
+/* -- C library metamethods ----------------------------------------------- */
+
+#define LJLIB_MODULE_ffi_clib
+
+/* Index C library by a name. */
+static TValue *ffi_clib_index(lua_State *L)
+{
+  TValue *o = L->base;
+  CLibrary *cl;
+  if (!(o < L->top && tvisudata(o) && udataV(o)->udtype == UDTYPE_FFI_CLIB))
+    lj_err_argt(L, 1, LUA_TUSERDATA);
+  cl = (CLibrary *)uddata(udataV(o));
+  if (!(o+1 < L->top && tvisstr(o+1)))
+    lj_err_argt(L, 2, LUA_TSTRING);
+  return lj_clib_index(L, cl, strV(o+1));
+}
+
+LJLIB_CF(ffi_clib___index)	LJLIB_REC(clib_index 1)
+{
+  TValue *tv = ffi_clib_index(L);
+  if (tviscdata(tv)) {
+    CTState *cts = ctype_cts(L);
+    GCcdata *cd = cdataV(tv);
+    CType *s = ctype_get(cts, cd->ctypeid);
+    if (ctype_isextern(s->info)) {
+      CTypeID sid = ctype_cid(s->info);
+      void *sp = *(void **)cdataptr(cd);
+      CType *ct = ctype_raw(cts, sid);
+      if (lj_cconv_tv_ct(cts, ct, sid, L->top-1, sp))
+	lj_gc_check(L);
+      return 1;
+    }
+  }
+  copyTV(L, L->top-1, tv);
+  return 1;
+}
+
+LJLIB_CF(ffi_clib___newindex)	LJLIB_REC(clib_index 0)
+{
+  TValue *tv = ffi_clib_index(L);
+  TValue *o = L->base+2;
+  if (o < L->top && tviscdata(tv)) {
+    CTState *cts = ctype_cts(L);
+    GCcdata *cd = cdataV(tv);
+    CType *d = ctype_get(cts, cd->ctypeid);
+    if (ctype_isextern(d->info)) {
+      CTInfo qual = 0;
+      for (;;) {  /* Skip attributes and collect qualifiers. */
+	d = ctype_child(cts, d);
+	if (!ctype_isattrib(d->info)) break;
+	if (ctype_attrib(d->info) == CTA_QUAL) qual |= d->size;
+      }
+      if (!((d->info|qual) & CTF_CONST)) {
+	lj_cconv_ct_tv(cts, d, *(void **)cdataptr(cd), o, 0);
+	return 0;
+      }
+    }
+  }
+  lj_err_caller(L, LJ_ERR_FFI_WRCONST);
+  return 0;  /* unreachable */
+}
+
+LJLIB_CF(ffi_clib___gc)
+{
+  TValue *o = L->base;
+  if (o < L->top && tvisudata(o) && udataV(o)->udtype == UDTYPE_FFI_CLIB)
+    lj_clib_unload((CLibrary *)uddata(udataV(o)));
+  return 0;
+}
+
+#include "lj_libdef.h"
+
+/* -- Callback function metamethods --------------------------------------- */
+
+#define LJLIB_MODULE_ffi_callback
+
+static int ffi_callback_set(lua_State *L, GCfunc *fn)
+{
+  GCcdata *cd = ffi_checkcdata(L, 1);
+  CTState *cts = ctype_cts(L);
+  CType *ct = ctype_raw(cts, cd->ctypeid);
+  if (ctype_isptr(ct->info) && (LJ_32 || ct->size == 8)) {
+    MSize slot = lj_ccallback_ptr2slot(cts, *(void **)cdataptr(cd));
+    if (slot < cts->cb.sizeid && cts->cb.cbid[slot] != 0) {
+      GCtab *t = cts->miscmap;
+      TValue *tv = lj_tab_setint(L, t, (int32_t)slot);
+      if (fn) {
+	setfuncV(L, tv, fn);
+	lj_gc_anybarriert(L, t);
+      } else {
+	setnilV(tv);
+	cts->cb.cbid[slot] = 0;
+	cts->cb.topid = slot < cts->cb.topid ? slot : cts->cb.topid;
+      }
+      return 0;
+    }
+  }
+  lj_err_caller(L, LJ_ERR_FFI_BADCBACK);
+  return 0;
+}
+
+LJLIB_CF(ffi_callback_free)
+{
+  return ffi_callback_set(L, NULL);
+}
+
+LJLIB_CF(ffi_callback_set)
+{
+  GCfunc *fn = lj_lib_checkfunc(L, 2);
+  return ffi_callback_set(L, fn);
+}
+
+LJLIB_PUSH(top-1) LJLIB_SET(__index)
+
+#include "lj_libdef.h"
+
+/* -- FFI library functions ----------------------------------------------- */
+
+#define LJLIB_MODULE_ffi
+
+LJLIB_CF(ffi_cdef)
+{
+  GCstr *s = lj_lib_checkstr(L, 1);
+  CPState cp;
+  int errcode;
+  cp.L = L;
+  cp.cts = ctype_cts(L);
+  cp.srcname = strdata(s);
+  cp.p = strdata(s);
+  cp.param = L->base+1;
+  cp.mode = CPARSE_MODE_MULTI|CPARSE_MODE_DIRECT;
+  errcode = lj_cparse(&cp);
+  if (errcode) lj_err_throw(L, errcode);  /* Propagate errors. */
+  lj_gc_check(L);
+  return 0;
+}
+
+LJLIB_CF(ffi_new)	LJLIB_REC(.)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkctype(L, cts, NULL);
+  CType *ct = ctype_raw(cts, id);
+  CTSize sz;
+  CTInfo info = lj_ctype_info(cts, id, &sz);
+  TValue *o = L->base+1;
+  GCcdata *cd;
+  if ((info & CTF_VLA)) {
+    o++;
+    sz = lj_ctype_vlsize(cts, ct, (CTSize)ffi_checkint(L, 2));
+  }
+  if (sz == CTSIZE_INVALID)
+    lj_err_arg(L, 1, LJ_ERR_FFI_INVSIZE);
+  cd = lj_cdata_newx(cts, id, sz, info);
+  setcdataV(L, o-1, cd);  /* Anchor the uninitialized cdata. */
+  lj_cconv_ct_init(cts, ct, sz, cdataptr(cd),
+		   o, (MSize)(L->top - o));  /* Initialize cdata. */
+  if (ctype_isstruct(ct->info)) {
+    /* Handle ctype __gc metamethod. Use the fast lookup here. */
+    cTValue *tv = lj_tab_getinth(cts->miscmap, -(int32_t)id);
+    if (tv && tvistab(tv) && (tv = lj_meta_fast(L, tabV(tv), MM_gc))) {
+      GCtab *t = cts->finalizer;
+      if (gcref(t->metatable)) {
+	/* Add to finalizer table, if still enabled. */
+	copyTV(L, lj_tab_set(L, t, o-1), tv);
+	lj_gc_anybarriert(L, t);
+	cd->marked |= LJ_GC_CDATA_FIN;
+      }
+    }
+  }
+  L->top = o;  /* Only return the cdata itself. */
+  lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_CF(ffi_cast)	LJLIB_REC(ffi_new)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkctype(L, cts, NULL);
+  CType *d = ctype_raw(cts, id);
+  TValue *o = lj_lib_checkany(L, 2);
+  L->top = o+1;  /* Make sure this is the last item on the stack. */
+  if (!(ctype_isnum(d->info) || ctype_isptr(d->info) || ctype_isenum(d->info)))
+    lj_err_arg(L, 1, LJ_ERR_FFI_INVTYPE);
+  if (!(tviscdata(o) && cdataV(o)->ctypeid == id)) {
+    GCcdata *cd = lj_cdata_new(cts, id, d->size);
+    lj_cconv_ct_tv(cts, d, cdataptr(cd), o, CCF_CAST);
+    setcdataV(L, o, cd);
+    lj_gc_check(L);
+  }
+  return 1;
+}
+
+LJLIB_CF(ffi_typeof)	LJLIB_REC(.)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkctype(L, cts, L->base+1);
+  GCcdata *cd = lj_cdata_new(cts, CTID_CTYPEID, 4);
+  *(CTypeID *)cdataptr(cd) = id;
+  setcdataV(L, L->top-1, cd);
+  lj_gc_check(L);
+  return 1;
+}
+
+/* Internal and unsupported API. */
+LJLIB_CF(ffi_typeinfo)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = (CTypeID)ffi_checkint(L, 1);
+  if (id > 0 && id < cts->top) {
+    CType *ct = ctype_get(cts, id);
+    GCtab *t;
+    lua_createtable(L, 0, 4);  /* Increment hash size if fields are added. */
+    t = tabV(L->top-1);
+    setintV(lj_tab_setstr(L, t, lj_str_newlit(L, "info")), (int32_t)ct->info);
+    if (ct->size != CTSIZE_INVALID)
+      setintV(lj_tab_setstr(L, t, lj_str_newlit(L, "size")), (int32_t)ct->size);
+    if (ct->sib)
+      setintV(lj_tab_setstr(L, t, lj_str_newlit(L, "sib")), (int32_t)ct->sib);
+    if (gcref(ct->name)) {
+      GCstr *s = gco2str(gcref(ct->name));
+      if (isdead(G(L), obj2gco(s))) flipwhite(obj2gco(s));
+      setstrV(L, lj_tab_setstr(L, t, lj_str_newlit(L, "name")), s);
+    }
+    lj_gc_check(L);
+    return 1;
+  }
+  return 0;
+}
+
+LJLIB_CF(ffi_istype)	LJLIB_REC(.)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id1 = ffi_checkctype(L, cts, NULL);
+  TValue *o = lj_lib_checkany(L, 2);
+  int b = 0;
+  if (tviscdata(o)) {
+    GCcdata *cd = cdataV(o);
+    CTypeID id2 = cd->ctypeid == CTID_CTYPEID ? *(CTypeID *)cdataptr(cd) :
+						cd->ctypeid;
+    CType *ct1 = lj_ctype_rawref(cts, id1);
+    CType *ct2 = lj_ctype_rawref(cts, id2);
+    if (ct1 == ct2) {
+      b = 1;
+    } else if (ctype_type(ct1->info) == ctype_type(ct2->info) &&
+	       ct1->size == ct2->size) {
+      if (ctype_ispointer(ct1->info))
+	b = lj_cconv_compatptr(cts, ct1, ct2, CCF_IGNQUAL);
+      else if (ctype_isnum(ct1->info) || ctype_isvoid(ct1->info))
+	b = (((ct1->info ^ ct2->info) & ~(CTF_QUAL|CTF_LONG)) == 0);
+    } else if (ctype_isstruct(ct1->info) && ctype_isptr(ct2->info) &&
+	       ct1 == ctype_rawchild(cts, ct2)) {
+      b = 1;
+    }
+  }
+  setboolV(L->top-1, b);
+  setboolV(&G(L)->tmptv2, b);  /* Remember for trace recorder. */
+  return 1;
+}
+
+LJLIB_CF(ffi_sizeof)	LJLIB_REC(ffi_xof FF_ffi_sizeof)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkctype(L, cts, NULL);
+  CTSize sz;
+  if (LJ_UNLIKELY(tviscdata(L->base) && cdataisv(cdataV(L->base)))) {
+    sz = cdatavlen(cdataV(L->base));
+  } else {
+    CType *ct = lj_ctype_rawref(cts, id);
+    if (ctype_isvltype(ct->info))
+      sz = lj_ctype_vlsize(cts, ct, (CTSize)ffi_checkint(L, 2));
+    else
+      sz = ctype_hassize(ct->info) ? ct->size : CTSIZE_INVALID;
+    if (LJ_UNLIKELY(sz == CTSIZE_INVALID)) {
+      setnilV(L->top-1);
+      return 1;
+    }
+  }
+  setintV(L->top-1, (int32_t)sz);
+  return 1;
+}
+
+LJLIB_CF(ffi_alignof)	LJLIB_REC(ffi_xof FF_ffi_alignof)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkctype(L, cts, NULL);
+  CTSize sz = 0;
+  CTInfo info = lj_ctype_info_raw(cts, id, &sz);
+  setintV(L->top-1, 1 << ctype_align(info));
+  return 1;
+}
+
+LJLIB_CF(ffi_offsetof)	LJLIB_REC(ffi_xof FF_ffi_offsetof)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkctype(L, cts, NULL);
+  GCstr *name = lj_lib_checkstr(L, 2);
+  CType *ct = lj_ctype_rawref(cts, id);
+  CTSize ofs;
+  if (ctype_isstruct(ct->info) && ct->size != CTSIZE_INVALID) {
+    CType *fct = lj_ctype_getfield(cts, ct, name, &ofs);
+    if (fct) {
+      setintV(L->top-1, ofs);
+      if (ctype_isfield(fct->info)) {
+	return 1;
+      } else if (ctype_isbitfield(fct->info)) {
+	setintV(L->top++, ctype_bitpos(fct->info));
+	setintV(L->top++, ctype_bitbsz(fct->info));
+	return 3;
+      }
+    }
+  }
+  return 0;
+}
+
+LJLIB_CF(ffi_errno)	LJLIB_REC(.)
+{
+  int err = errno;
+  if (L->top > L->base)
+    errno = ffi_checkint(L, 1);
+  setintV(L->top++, err);
+  return 1;
+}
+
+LJLIB_CF(ffi_string)	LJLIB_REC(.)
+{
+  CTState *cts = ctype_cts(L);
+  TValue *o = lj_lib_checkany(L, 1);
+  const char *p;
+  size_t len;
+  if (o+1 < L->top && !tvisnil(o+1)) {
+    len = (size_t)ffi_checkint(L, 2);
+    lj_cconv_ct_tv(cts, ctype_get(cts, CTID_P_CVOID), (uint8_t *)&p, o,
+		   CCF_ARG(1));
+  } else {
+    lj_cconv_ct_tv(cts, ctype_get(cts, CTID_P_CCHAR), (uint8_t *)&p, o,
+		   CCF_ARG(1));
+    len = strlen(p);
+  }
+  L->top = o+1;  /* Make sure this is the last item on the stack. */
+  setstrV(L, o, lj_str_new(L, p, len));
+  lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_CF(ffi_copy)	LJLIB_REC(.)
+{
+  void *dp = ffi_checkptr(L, 1, CTID_P_VOID);
+  void *sp = ffi_checkptr(L, 2, CTID_P_CVOID);
+  TValue *o = L->base+1;
+  CTSize len;
+  if (tvisstr(o) && o+1 >= L->top)
+    len = strV(o)->len+1;  /* Copy Lua string including trailing '\0'. */
+  else
+    len = (CTSize)ffi_checkint(L, 3);
+  memcpy(dp, sp, len);
+  return 0;
+}
+
+LJLIB_CF(ffi_fill)	LJLIB_REC(.)
+{
+  void *dp = ffi_checkptr(L, 1, CTID_P_VOID);
+  CTSize len = (CTSize)ffi_checkint(L, 2);
+  int32_t fill = 0;
+  if (L->base+2 < L->top && !tvisnil(L->base+2)) fill = ffi_checkint(L, 3);
+  memset(dp, fill, len);
+  return 0;
+}
+
+/* Test ABI string. */
+LJLIB_CF(ffi_abi)	LJLIB_REC(.)
+{
+  GCstr *s = lj_lib_checkstr(L, 1);
+  int b = lj_cparse_case(s,
+#if LJ_64
+    "\00564bit"
+#else
+    "\00532bit"
+#endif
+#if LJ_ARCH_HASFPU
+    "\003fpu"
+#endif
+#if LJ_ABI_SOFTFP
+    "\006softfp"
+#else
+    "\006hardfp"
+#endif
+#if LJ_ABI_EABI
+    "\004eabi"
+#endif
+#if LJ_ABI_WIN
+    "\003win"
+#endif
+#if LJ_TARGET_UWP
+    "\003uwp"
+#endif
+#if LJ_LE
+    "\002le"
+#else
+    "\002be"
+#endif
+#if LJ_GC64
+    "\004gc64"
+#endif
+  ) >= 0;
+  setboolV(L->top-1, b);
+  setboolV(&G(L)->tmptv2, b);  /* Remember for trace recorder. */
+  return 1;
+}
+
+LJLIB_PUSH(top-8) LJLIB_SET(!)  /* Store reference to miscmap table. */
+
+LJLIB_CF(ffi_metatype)
+{
+  CTState *cts = ctype_cts(L);
+  CTypeID id = ffi_checkctype(L, cts, NULL);
+  GCtab *mt = lj_lib_checktab(L, 2);
+  GCtab *t = cts->miscmap;
+  CType *ct = ctype_raw(cts, id);
+  TValue *tv;
+  GCcdata *cd;
+  if (!(ctype_isstruct(ct->info) || ctype_iscomplex(ct->info) ||
+	ctype_isvector(ct->info)))
+    lj_err_arg(L, 1, LJ_ERR_FFI_INVTYPE);
+  tv = lj_tab_setinth(L, t, -(int32_t)id);
+  if (!tvisnil(tv))
+    lj_err_caller(L, LJ_ERR_PROTMT);
+  settabV(L, tv, mt);
+  lj_gc_anybarriert(L, t);
+  cd = lj_cdata_new(cts, CTID_CTYPEID, 4);
+  *(CTypeID *)cdataptr(cd) = id;
+  setcdataV(L, L->top-1, cd);
+  lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_PUSH(top-7) LJLIB_SET(!)  /* Store reference to finalizer table. */
+
+LJLIB_CF(ffi_gc)	LJLIB_REC(.)
+{
+  GCcdata *cd = ffi_checkcdata(L, 1);
+  TValue *fin = lj_lib_checkany(L, 2);
+  CTState *cts = ctype_cts(L);
+  CType *ct = ctype_raw(cts, cd->ctypeid);
+  if (!(ctype_isptr(ct->info) || ctype_isstruct(ct->info) ||
+	ctype_isrefarray(ct->info)))
+    lj_err_arg(L, 1, LJ_ERR_FFI_INVTYPE);
+  lj_cdata_setfin(L, cd, gcval(fin), itype(fin));
+  L->top = L->base+1;  /* Pass through the cdata object. */
+  return 1;
+}
+
+LJLIB_PUSH(top-5) LJLIB_SET(!)  /* Store clib metatable in func environment. */
+
+LJLIB_CF(ffi_load)
+{
+  GCstr *name = lj_lib_checkstr(L, 1);
+  int global = (L->base+1 < L->top && tvistruecond(L->base+1));
+  lj_clib_load(L, tabref(curr_func(L)->c.env), name, global);
+  return 1;
+}
+
+LJLIB_PUSH(top-4) LJLIB_SET(C)
+LJLIB_PUSH(top-3) LJLIB_SET(os)
+LJLIB_PUSH(top-2) LJLIB_SET(arch)
+
+#include "lj_libdef.h"
+
+/* ------------------------------------------------------------------------ */
+
+/* Create special weak-keyed finalizer table. */
+static GCtab *ffi_finalizer(lua_State *L)
+{
+  /* NOBARRIER: The table is new (marked white). */
+  GCtab *t = lj_tab_new(L, 0, 1);
+  settabV(L, L->top++, t);
+  setgcref(t->metatable, obj2gco(t));
+  setstrV(L, lj_tab_setstr(L, t, lj_str_newlit(L, "__mode")),
+	  lj_str_newlit(L, "k"));
+  t->nomm = (uint8_t)(~(1u<<MM_mode));
+  return t;
+}
+
+/* Register FFI module as loaded. */
+static void ffi_register_module(lua_State *L)
+{
+  cTValue *tmp = lj_tab_getstr(tabV(registry(L)), lj_str_newlit(L, "_LOADED"));
+  if (tmp && tvistab(tmp)) {
+    GCtab *t = tabV(tmp);
+    copyTV(L, lj_tab_setstr(L, t, lj_str_newlit(L, LUA_FFILIBNAME)), L->top-1);
+    lj_gc_anybarriert(L, t);
+  }
+}
+
+LUALIB_API int luaopen_ffi(lua_State *L)
+{
+  CTState *cts = lj_ctype_init(L);
+  settabV(L, L->top++, (cts->miscmap = lj_tab_new(L, 0, 1)));
+  cts->finalizer = ffi_finalizer(L);
+  LJ_LIB_REG(L, NULL, ffi_meta);
+  /* NOBARRIER: basemt is a GC root. */
+  setgcref(basemt_it(G(L), LJ_TCDATA), obj2gco(tabV(L->top-1)));
+  LJ_LIB_REG(L, NULL, ffi_clib);
+  LJ_LIB_REG(L, NULL, ffi_callback);
+  /* NOBARRIER: the key is new and lj_tab_newkey() handles the barrier. */
+  settabV(L, lj_tab_setstr(L, cts->miscmap, &cts->g->strempty), tabV(L->top-1));
+  L->top--;
+  lj_clib_default(L, tabV(L->top-1));  /* Create ffi.C default namespace. */
+  lua_pushliteral(L, LJ_OS_NAME);
+  lua_pushliteral(L, LJ_ARCH_NAME);
+  LJ_LIB_REG(L, NULL, ffi);  /* Note: no global "ffi" created! */
+  ffi_register_module(L);
+  return 1;
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lib_init.c b/libs/luajit-cmake/luajit/src/lib_init.c
new file mode 100644
index 0000000..35e06fe
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lib_init.c
@@ -0,0 +1,55 @@
+/*
+** Library initialization.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major parts taken verbatim from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lib_init_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_arch.h"
+
+static const luaL_Reg lj_lib_load[] = {
+  { "",			luaopen_base },
+  { LUA_LOADLIBNAME,	luaopen_package },
+  { LUA_TABLIBNAME,	luaopen_table },
+  { LUA_IOLIBNAME,	luaopen_io },
+  { LUA_OSLIBNAME,	luaopen_os },
+  { LUA_STRLIBNAME,	luaopen_string },
+  { LUA_MATHLIBNAME,	luaopen_math },
+  { LUA_DBLIBNAME,	luaopen_debug },
+  { LUA_BITLIBNAME,	luaopen_bit },
+  { LUA_JITLIBNAME,	luaopen_jit },
+  { NULL,		NULL }
+};
+
+static const luaL_Reg lj_lib_preload[] = {
+#if LJ_HASFFI
+  { LUA_FFILIBNAME,	luaopen_ffi },
+#endif
+  { NULL,		NULL }
+};
+
+LUALIB_API void luaL_openlibs(lua_State *L)
+{
+  const luaL_Reg *lib;
+  for (lib = lj_lib_load; lib->func; lib++) {
+    lua_pushcfunction(L, lib->func);
+    lua_pushstring(L, lib->name);
+    lua_call(L, 1, 0);
+  }
+  luaL_findtable(L, LUA_REGISTRYINDEX, "_PRELOAD",
+		 sizeof(lj_lib_preload)/sizeof(lj_lib_preload[0])-1);
+  for (lib = lj_lib_preload; lib->func; lib++) {
+    lua_pushcfunction(L, lib->func);
+    lua_setfield(L, -2, lib->name);
+  }
+  lua_pop(L, 1);
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lib_io.c b/libs/luajit-cmake/luajit/src/lib_io.c
new file mode 100644
index 0000000..c22faa2
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lib_io.c
@@ -0,0 +1,551 @@
+/*
+** I/O library.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2011 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#include <errno.h>
+#include <stdio.h>
+
+#define lib_io_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_state.h"
+#include "lj_strfmt.h"
+#include "lj_ff.h"
+#include "lj_lib.h"
+
+/* Userdata payload for I/O file. */
+typedef struct IOFileUD {
+  FILE *fp;		/* File handle. */
+  uint32_t type;	/* File type. */
+} IOFileUD;
+
+#define IOFILE_TYPE_FILE	0	/* Regular file. */
+#define IOFILE_TYPE_PIPE	1	/* Pipe. */
+#define IOFILE_TYPE_STDF	2	/* Standard file handle. */
+#define IOFILE_TYPE_MASK	3
+
+#define IOFILE_FLAG_CLOSE	4	/* Close after io.lines() iterator. */
+
+#define IOSTDF_UD(L, id)	(&gcref(G(L)->gcroot[(id)])->ud)
+#define IOSTDF_IOF(L, id)	((IOFileUD *)uddata(IOSTDF_UD(L, (id))))
+
+/* -- Open/close helpers -------------------------------------------------- */
+
+static IOFileUD *io_tofilep(lua_State *L)
+{
+  if (!(L->base < L->top && tvisudata(L->base) &&
+	udataV(L->base)->udtype == UDTYPE_IO_FILE))
+    lj_err_argtype(L, 1, "FILE*");
+  return (IOFileUD *)uddata(udataV(L->base));
+}
+
+static IOFileUD *io_tofile(lua_State *L)
+{
+  IOFileUD *iof = io_tofilep(L);
+  if (iof->fp == NULL)
+    lj_err_caller(L, LJ_ERR_IOCLFL);
+  return iof;
+}
+
+static IOFileUD *io_stdfile(lua_State *L, ptrdiff_t id)
+{
+  IOFileUD *iof = IOSTDF_IOF(L, id);
+  if (iof->fp == NULL)
+    lj_err_caller(L, LJ_ERR_IOSTDCL);
+  return iof;
+}
+
+static IOFileUD *io_file_new(lua_State *L)
+{
+  IOFileUD *iof = (IOFileUD *)lua_newuserdata(L, sizeof(IOFileUD));
+  GCudata *ud = udataV(L->top-1);
+  ud->udtype = UDTYPE_IO_FILE;
+  /* NOBARRIER: The GCudata is new (marked white). */
+  setgcrefr(ud->metatable, curr_func(L)->c.env);
+  iof->fp = NULL;
+  iof->type = IOFILE_TYPE_FILE;
+  return iof;
+}
+
+static IOFileUD *io_file_open(lua_State *L, const char *mode)
+{
+  const char *fname = strdata(lj_lib_checkstr(L, 1));
+  IOFileUD *iof = io_file_new(L);
+  iof->fp = fopen(fname, mode);
+  if (iof->fp == NULL)
+    luaL_argerror(L, 1, lj_strfmt_pushf(L, "%s: %s", fname, strerror(errno)));
+  return iof;
+}
+
+static int io_file_close(lua_State *L, IOFileUD *iof)
+{
+  int ok;
+  if ((iof->type & IOFILE_TYPE_MASK) == IOFILE_TYPE_FILE) {
+    ok = (fclose(iof->fp) == 0);
+  } else if ((iof->type & IOFILE_TYPE_MASK) == IOFILE_TYPE_PIPE) {
+    int stat = -1;
+#if LJ_TARGET_POSIX
+    stat = pclose(iof->fp);
+#elif LJ_TARGET_WINDOWS && !LJ_TARGET_XBOXONE && !LJ_TARGET_UWP
+    stat = _pclose(iof->fp);
+#endif
+#if LJ_52
+    iof->fp = NULL;
+    return luaL_execresult(L, stat);
+#else
+    ok = (stat != -1);
+#endif
+  } else {
+    lj_assertL((iof->type & IOFILE_TYPE_MASK) == IOFILE_TYPE_STDF,
+	       "close of unknown FILE* type");
+    setnilV(L->top++);
+    lua_pushliteral(L, "cannot close standard file");
+    return 2;
+  }
+  iof->fp = NULL;
+  return luaL_fileresult(L, ok, NULL);
+}
+
+/* -- Read/write helpers -------------------------------------------------- */
+
+static int io_file_readnum(lua_State *L, FILE *fp)
+{
+  lua_Number d;
+  if (fscanf(fp, LUA_NUMBER_SCAN, &d) == 1) {
+    if (LJ_DUALNUM) {
+      int32_t i = lj_num2int(d);
+      if (d == (lua_Number)i && !tvismzero((cTValue *)&d)) {
+	setintV(L->top++, i);
+	return 1;
+      }
+    }
+    setnumV(L->top++, d);
+    return 1;
+  } else {
+    setnilV(L->top++);
+    return 0;
+  }
+}
+
+static int io_file_readline(lua_State *L, FILE *fp, MSize chop)
+{
+  MSize m = LUAL_BUFFERSIZE, n = 0, ok = 0;
+  char *buf;
+  for (;;) {
+    buf = lj_buf_tmp(L, m);
+    if (fgets(buf+n, m-n, fp) == NULL) break;
+    n += (MSize)strlen(buf+n);
+    ok |= n;
+    if (n && buf[n-1] == '\n') { n -= chop; break; }
+    if (n >= m - 64) m += m;
+  }
+  setstrV(L, L->top++, lj_str_new(L, buf, (size_t)n));
+  lj_gc_check(L);
+  return (int)ok;
+}
+
+static void io_file_readall(lua_State *L, FILE *fp)
+{
+  MSize m, n;
+  for (m = LUAL_BUFFERSIZE, n = 0; ; m += m) {
+    char *buf = lj_buf_tmp(L, m);
+    n += (MSize)fread(buf+n, 1, m-n, fp);
+    if (n != m) {
+      setstrV(L, L->top++, lj_str_new(L, buf, (size_t)n));
+      lj_gc_check(L);
+      return;
+    }
+  }
+}
+
+static int io_file_readlen(lua_State *L, FILE *fp, MSize m)
+{
+  if (m) {
+    char *buf = lj_buf_tmp(L, m);
+    MSize n = (MSize)fread(buf, 1, m, fp);
+    setstrV(L, L->top++, lj_str_new(L, buf, (size_t)n));
+    lj_gc_check(L);
+    return n > 0;
+  } else {
+    int c = getc(fp);
+    ungetc(c, fp);
+    setstrV(L, L->top++, &G(L)->strempty);
+    return (c != EOF);
+  }
+}
+
+static int io_file_read(lua_State *L, IOFileUD *iof, int start)
+{
+  FILE *fp = iof->fp;
+  int ok, n, nargs = (int)(L->top - L->base) - start;
+  clearerr(fp);
+  if (nargs == 0) {
+    ok = io_file_readline(L, fp, 1);
+    n = start+1;  /* Return 1 result. */
+  } else {
+    /* The results plus the buffers go on top of the args. */
+    luaL_checkstack(L, nargs+LUA_MINSTACK, "too many arguments");
+    ok = 1;
+    for (n = start; nargs-- && ok; n++) {
+      if (tvisstr(L->base+n)) {
+	const char *p = strVdata(L->base+n);
+	if (p[0] == '*') p++;
+	if (p[0] == 'n')
+	  ok = io_file_readnum(L, fp);
+	else if ((p[0] & ~0x20) == 'L')
+	  ok = io_file_readline(L, fp, (p[0] == 'l'));
+	else if (p[0] == 'a')
+	  io_file_readall(L, fp);
+	else
+	  lj_err_arg(L, n+1, LJ_ERR_INVFMT);
+      } else if (tvisnumber(L->base+n)) {
+	ok = io_file_readlen(L, fp, (MSize)lj_lib_checkint(L, n+1));
+      } else {
+	lj_err_arg(L, n+1, LJ_ERR_INVOPT);
+      }
+    }
+  }
+  if (ferror(fp))
+    return luaL_fileresult(L, 0, NULL);
+  if (!ok)
+    setnilV(L->top-1);  /* Replace last result with nil. */
+  return n - start;
+}
+
+static int io_file_write(lua_State *L, IOFileUD *iof, int start)
+{
+  FILE *fp = iof->fp;
+  cTValue *tv;
+  int status = 1;
+  for (tv = L->base+start; tv < L->top; tv++) {
+    MSize len;
+    const char *p = lj_strfmt_wstrnum(L, tv, &len);
+    if (!p)
+      lj_err_argt(L, (int)(tv - L->base) + 1, LUA_TSTRING);
+    status = status && (fwrite(p, 1, len, fp) == len);
+  }
+  if (LJ_52 && status) {
+    L->top = L->base+1;
+    if (start == 0)
+      setudataV(L, L->base, IOSTDF_UD(L, GCROOT_IO_OUTPUT));
+    return 1;
+  }
+  return luaL_fileresult(L, status, NULL);
+}
+
+static int io_file_iter(lua_State *L)
+{
+  GCfunc *fn = curr_func(L);
+  IOFileUD *iof = uddata(udataV(&fn->c.upvalue[0]));
+  int n = fn->c.nupvalues - 1;
+  if (iof->fp == NULL)
+    lj_err_caller(L, LJ_ERR_IOCLFL);
+  L->top = L->base;
+  if (n) {  /* Copy upvalues with options to stack. */
+    lj_state_checkstack(L, (MSize)n);
+    memcpy(L->top, &fn->c.upvalue[1], n*sizeof(TValue));
+    L->top += n;
+  }
+  n = io_file_read(L, iof, 0);
+  if (ferror(iof->fp))
+    lj_err_callermsg(L, strVdata(L->top-2));
+  if (tvisnil(L->base) && (iof->type & IOFILE_FLAG_CLOSE)) {
+    io_file_close(L, iof);  /* Return values are ignored. */
+    return 0;
+  }
+  return n;
+}
+
+static int io_file_lines(lua_State *L)
+{
+  int n = (int)(L->top - L->base);
+  if (n > LJ_MAX_UPVAL)
+    lj_err_caller(L, LJ_ERR_UNPACK);
+  lua_pushcclosure(L, io_file_iter, n);
+  return 1;
+}
+
+/* -- I/O file methods ---------------------------------------------------- */
+
+#define LJLIB_MODULE_io_method
+
+LJLIB_CF(io_method_close)
+{
+  IOFileUD *iof;
+  if (L->base < L->top) {
+    iof = io_tofile(L);
+  } else {
+    iof = IOSTDF_IOF(L, GCROOT_IO_OUTPUT);
+    if (iof->fp == NULL)
+      lj_err_caller(L, LJ_ERR_IOCLFL);
+  }
+  return io_file_close(L, iof);
+}
+
+LJLIB_CF(io_method_read)
+{
+  return io_file_read(L, io_tofile(L), 1);
+}
+
+LJLIB_CF(io_method_write)		LJLIB_REC(io_write 0)
+{
+  return io_file_write(L, io_tofile(L), 1);
+}
+
+LJLIB_CF(io_method_flush)		LJLIB_REC(io_flush 0)
+{
+  return luaL_fileresult(L, fflush(io_tofile(L)->fp) == 0, NULL);
+}
+
+#if LJ_32 && defined(__ANDROID__) && __ANDROID_API__ < 24
+/* The Android NDK is such an unmatched marvel of engineering. */
+extern int fseeko32(FILE *, long int, int) __asm__("fseeko");
+extern long int ftello32(FILE *) __asm__("ftello");
+#define fseeko(fp, pos, whence)	(fseeko32((fp), (pos), (whence)))
+#define ftello(fp)		(ftello32((fp)))
+#endif
+
+LJLIB_CF(io_method_seek)
+{
+  FILE *fp = io_tofile(L)->fp;
+  int opt = lj_lib_checkopt(L, 2, 1, "\3set\3cur\3end");
+  int64_t ofs = 0;
+  cTValue *o;
+  int res;
+  if (opt == 0) opt = SEEK_SET;
+  else if (opt == 1) opt = SEEK_CUR;
+  else if (opt == 2) opt = SEEK_END;
+  o = L->base+2;
+  if (o < L->top) {
+    if (tvisint(o))
+      ofs = (int64_t)intV(o);
+    else if (tvisnum(o))
+      ofs = (int64_t)numV(o);
+    else if (!tvisnil(o))
+      lj_err_argt(L, 3, LUA_TNUMBER);
+  }
+#if LJ_TARGET_POSIX
+  res = fseeko(fp, ofs, opt);
+#elif _MSC_VER >= 1400
+  res = _fseeki64(fp, ofs, opt);
+#elif defined(__MINGW32__)
+  res = fseeko64(fp, ofs, opt);
+#else
+  res = fseek(fp, (long)ofs, opt);
+#endif
+  if (res)
+    return luaL_fileresult(L, 0, NULL);
+#if LJ_TARGET_POSIX
+  ofs = ftello(fp);
+#elif _MSC_VER >= 1400
+  ofs = _ftelli64(fp);
+#elif defined(__MINGW32__)
+  ofs = ftello64(fp);
+#else
+  ofs = (int64_t)ftell(fp);
+#endif
+  setint64V(L->top-1, ofs);
+  return 1;
+}
+
+LJLIB_CF(io_method_setvbuf)
+{
+  FILE *fp = io_tofile(L)->fp;
+  int opt = lj_lib_checkopt(L, 2, -1, "\4full\4line\2no");
+  size_t sz = (size_t)lj_lib_optint(L, 3, LUAL_BUFFERSIZE);
+  if (opt == 0) opt = _IOFBF;
+  else if (opt == 1) opt = _IOLBF;
+  else if (opt == 2) opt = _IONBF;
+  return luaL_fileresult(L, setvbuf(fp, NULL, opt, sz) == 0, NULL);
+}
+
+LJLIB_CF(io_method_lines)
+{
+  io_tofile(L);
+  return io_file_lines(L);
+}
+
+LJLIB_CF(io_method___gc)
+{
+  IOFileUD *iof = io_tofilep(L);
+  if (iof->fp != NULL && (iof->type & IOFILE_TYPE_MASK) != IOFILE_TYPE_STDF)
+    io_file_close(L, iof);
+  return 0;
+}
+
+LJLIB_CF(io_method___tostring)
+{
+  IOFileUD *iof = io_tofilep(L);
+  if (iof->fp != NULL)
+    lua_pushfstring(L, "file (%p)", iof->fp);
+  else
+    lua_pushliteral(L, "file (closed)");
+  return 1;
+}
+
+LJLIB_PUSH(top-1) LJLIB_SET(__index)
+
+#include "lj_libdef.h"
+
+/* -- I/O library functions ----------------------------------------------- */
+
+#define LJLIB_MODULE_io
+
+LJLIB_PUSH(top-2) LJLIB_SET(!)  /* Set environment. */
+
+LJLIB_CF(io_open)
+{
+  const char *fname = strdata(lj_lib_checkstr(L, 1));
+  GCstr *s = lj_lib_optstr(L, 2);
+  const char *mode = s ? strdata(s) : "r";
+  IOFileUD *iof = io_file_new(L);
+  iof->fp = fopen(fname, mode);
+  return iof->fp != NULL ? 1 : luaL_fileresult(L, 0, fname);
+}
+
+LJLIB_CF(io_popen)
+{
+#if LJ_TARGET_POSIX || (LJ_TARGET_WINDOWS && !LJ_TARGET_XBOXONE && !LJ_TARGET_UWP)
+  const char *fname = strdata(lj_lib_checkstr(L, 1));
+  GCstr *s = lj_lib_optstr(L, 2);
+  const char *mode = s ? strdata(s) : "r";
+  IOFileUD *iof = io_file_new(L);
+  iof->type = IOFILE_TYPE_PIPE;
+#if LJ_TARGET_POSIX
+  fflush(NULL);
+  iof->fp = popen(fname, mode);
+#else
+  iof->fp = _popen(fname, mode);
+#endif
+  return iof->fp != NULL ? 1 : luaL_fileresult(L, 0, fname);
+#else
+  return luaL_error(L, LUA_QL("popen") " not supported");
+#endif
+}
+
+LJLIB_CF(io_tmpfile)
+{
+  IOFileUD *iof = io_file_new(L);
+#if LJ_TARGET_PS3 || LJ_TARGET_PS4 || LJ_TARGET_PS5 || LJ_TARGET_PSVITA || LJ_TARGET_NX
+  iof->fp = NULL; errno = ENOSYS;
+#else
+  iof->fp = tmpfile();
+#endif
+  return iof->fp != NULL ? 1 : luaL_fileresult(L, 0, NULL);
+}
+
+LJLIB_CF(io_close)
+{
+  return lj_cf_io_method_close(L);
+}
+
+LJLIB_CF(io_read)
+{
+  return io_file_read(L, io_stdfile(L, GCROOT_IO_INPUT), 0);
+}
+
+LJLIB_CF(io_write)		LJLIB_REC(io_write GCROOT_IO_OUTPUT)
+{
+  return io_file_write(L, io_stdfile(L, GCROOT_IO_OUTPUT), 0);
+}
+
+LJLIB_CF(io_flush)		LJLIB_REC(io_flush GCROOT_IO_OUTPUT)
+{
+  return luaL_fileresult(L, fflush(io_stdfile(L, GCROOT_IO_OUTPUT)->fp) == 0, NULL);
+}
+
+static int io_std_getset(lua_State *L, ptrdiff_t id, const char *mode)
+{
+  if (L->base < L->top && !tvisnil(L->base)) {
+    if (tvisudata(L->base)) {
+      io_tofile(L);
+      L->top = L->base+1;
+    } else {
+      io_file_open(L, mode);
+    }
+    /* NOBARRIER: The standard I/O handles are GC roots. */
+    setgcref(G(L)->gcroot[id], gcV(L->top-1));
+  } else {
+    setudataV(L, L->top++, IOSTDF_UD(L, id));
+  }
+  return 1;
+}
+
+LJLIB_CF(io_input)
+{
+  return io_std_getset(L, GCROOT_IO_INPUT, "r");
+}
+
+LJLIB_CF(io_output)
+{
+  return io_std_getset(L, GCROOT_IO_OUTPUT, "w");
+}
+
+LJLIB_CF(io_lines)
+{
+  if (L->base == L->top) setnilV(L->top++);
+  if (!tvisnil(L->base)) {  /* io.lines(fname) */
+    IOFileUD *iof = io_file_open(L, "r");
+    iof->type = IOFILE_TYPE_FILE|IOFILE_FLAG_CLOSE;
+    L->top--;
+    setudataV(L, L->base, udataV(L->top));
+  } else {  /* io.lines() iterates over stdin. */
+    setudataV(L, L->base, IOSTDF_UD(L, GCROOT_IO_INPUT));
+  }
+  return io_file_lines(L);
+}
+
+LJLIB_CF(io_type)
+{
+  cTValue *o = lj_lib_checkany(L, 1);
+  if (!(tvisudata(o) && udataV(o)->udtype == UDTYPE_IO_FILE))
+    setnilV(L->top++);
+  else if (((IOFileUD *)uddata(udataV(o)))->fp != NULL)
+    lua_pushliteral(L, "file");
+  else
+    lua_pushliteral(L, "closed file");
+  return 1;
+}
+
+#include "lj_libdef.h"
+
+/* ------------------------------------------------------------------------ */
+
+static GCobj *io_std_new(lua_State *L, FILE *fp, const char *name)
+{
+  IOFileUD *iof = (IOFileUD *)lua_newuserdata(L, sizeof(IOFileUD));
+  GCudata *ud = udataV(L->top-1);
+  ud->udtype = UDTYPE_IO_FILE;
+  /* NOBARRIER: The GCudata is new (marked white). */
+  setgcref(ud->metatable, gcV(L->top-3));
+  iof->fp = fp;
+  iof->type = IOFILE_TYPE_STDF;
+  lua_setfield(L, -2, name);
+  return obj2gco(ud);
+}
+
+LUALIB_API int luaopen_io(lua_State *L)
+{
+  LJ_LIB_REG(L, NULL, io_method);
+  copyTV(L, L->top, L->top-1); L->top++;
+  lua_setfield(L, LUA_REGISTRYINDEX, LUA_FILEHANDLE);
+  LJ_LIB_REG(L, LUA_IOLIBNAME, io);
+  setgcref(G(L)->gcroot[GCROOT_IO_INPUT], io_std_new(L, stdin, "stdin"));
+  setgcref(G(L)->gcroot[GCROOT_IO_OUTPUT], io_std_new(L, stdout, "stdout"));
+  io_std_new(L, stderr, "stderr");
+  return 1;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lib_jit.c b/libs/luajit-cmake/luajit/src/lib_jit.c
new file mode 100644
index 0000000..2867d42
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lib_jit.c
@@ -0,0 +1,761 @@
+/*
+** JIT library.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lib_jit_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_state.h"
+#include "lj_bc.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#endif
+#if LJ_HASJIT
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_ircall.h"
+#include "lj_iropt.h"
+#include "lj_target.h"
+#endif
+#include "lj_trace.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+#include "lj_vmevent.h"
+#include "lj_lib.h"
+
+#include "luajit.h"
+
+/* -- jit.* functions ----------------------------------------------------- */
+
+#define LJLIB_MODULE_jit
+
+static int setjitmode(lua_State *L, int mode)
+{
+  int idx = 0;
+  if (L->base == L->top || tvisnil(L->base)) {  /* jit.on/off/flush([nil]) */
+    mode |= LUAJIT_MODE_ENGINE;
+  } else {
+    /* jit.on/off/flush(func|proto, nil|true|false) */
+    if (tvisfunc(L->base) || tvisproto(L->base))
+      idx = 1;
+    else if (!tvistrue(L->base))  /* jit.on/off/flush(true, nil|true|false) */
+      goto err;
+    if (L->base+1 < L->top && tvisbool(L->base+1))
+      mode |= boolV(L->base+1) ? LUAJIT_MODE_ALLFUNC : LUAJIT_MODE_ALLSUBFUNC;
+    else
+      mode |= LUAJIT_MODE_FUNC;
+  }
+  if (luaJIT_setmode(L, idx, mode) != 1) {
+    if ((mode & LUAJIT_MODE_MASK) == LUAJIT_MODE_ENGINE)
+      lj_err_caller(L, LJ_ERR_NOJIT);
+  err:
+    lj_err_argt(L, 1, LUA_TFUNCTION);
+  }
+  return 0;
+}
+
+LJLIB_CF(jit_on)
+{
+  return setjitmode(L, LUAJIT_MODE_ON);
+}
+
+LJLIB_CF(jit_off)
+{
+  return setjitmode(L, LUAJIT_MODE_OFF);
+}
+
+LJLIB_CF(jit_flush)
+{
+#if LJ_HASJIT
+  if (L->base < L->top && tvisnumber(L->base)) {
+    int traceno = lj_lib_checkint(L, 1);
+    luaJIT_setmode(L, traceno, LUAJIT_MODE_FLUSH|LUAJIT_MODE_TRACE);
+    return 0;
+  }
+#endif
+  return setjitmode(L, LUAJIT_MODE_FLUSH);
+}
+
+#if LJ_HASJIT
+/* Push a string for every flag bit that is set. */
+static void flagbits_to_strings(lua_State *L, uint32_t flags, uint32_t base,
+				const char *str)
+{
+  for (; *str; base <<= 1, str += 1+*str)
+    if (flags & base)
+      setstrV(L, L->top++, lj_str_new(L, str+1, *(uint8_t *)str));
+}
+#endif
+
+LJLIB_CF(jit_status)
+{
+#if LJ_HASJIT
+  jit_State *J = L2J(L);
+  L->top = L->base;
+  setboolV(L->top++, (J->flags & JIT_F_ON) ? 1 : 0);
+  flagbits_to_strings(L, J->flags, JIT_F_CPU, JIT_F_CPUSTRING);
+  flagbits_to_strings(L, J->flags, JIT_F_OPT, JIT_F_OPTSTRING);
+  return (int)(L->top - L->base);
+#else
+  setboolV(L->top++, 0);
+  return 1;
+#endif
+}
+
+LJLIB_CF(jit_security)
+{
+  int idx = lj_lib_checkopt(L, 1, -1, LJ_SECURITY_MODESTRING);
+  setintV(L->top++, ((LJ_SECURITY_MODE >> (2*idx)) & 3));
+  return 1;
+}
+
+LJLIB_CF(jit_attach)
+{
+#ifdef LUAJIT_DISABLE_VMEVENT
+  luaL_error(L, "vmevent API disabled");
+#else
+  GCfunc *fn = lj_lib_checkfunc(L, 1);
+  GCstr *s = lj_lib_optstr(L, 2);
+  luaL_findtable(L, LUA_REGISTRYINDEX, LJ_VMEVENTS_REGKEY, LJ_VMEVENTS_HSIZE);
+  if (s) {  /* Attach to given event. */
+    const uint8_t *p = (const uint8_t *)strdata(s);
+    uint32_t h = s->len;
+    while (*p) h = h ^ (lj_rol(h, 6) + *p++);
+    lua_pushvalue(L, 1);
+    lua_rawseti(L, -2, VMEVENT_HASHIDX(h));
+    G(L)->vmevmask = VMEVENT_NOCACHE;  /* Invalidate cache. */
+  } else {  /* Detach if no event given. */
+    setnilV(L->top++);
+    while (lua_next(L, -2)) {
+      L->top--;
+      if (tvisfunc(L->top) && funcV(L->top) == fn) {
+	setnilV(lj_tab_set(L, tabV(L->top-2), L->top-1));
+      }
+    }
+  }
+#endif
+  return 0;
+}
+
+LJLIB_PUSH(top-5) LJLIB_SET(os)
+LJLIB_PUSH(top-4) LJLIB_SET(arch)
+LJLIB_PUSH(top-3) LJLIB_SET(version_num)
+LJLIB_PUSH(top-2) LJLIB_SET(version)
+
+#include "lj_libdef.h"
+
+/* -- jit.util.* functions ------------------------------------------------ */
+
+#define LJLIB_MODULE_jit_util
+
+/* -- Reflection API for Lua functions ------------------------------------ */
+
+/* Return prototype of first argument (Lua function or prototype object) */
+static GCproto *check_Lproto(lua_State *L, int nolua)
+{
+  TValue *o = L->base;
+  if (L->top > o) {
+    if (tvisproto(o)) {
+      return protoV(o);
+    } else if (tvisfunc(o)) {
+      if (isluafunc(funcV(o)))
+	return funcproto(funcV(o));
+      else if (nolua)
+	return NULL;
+    }
+  }
+  lj_err_argt(L, 1, LUA_TFUNCTION);
+  return NULL;  /* unreachable */
+}
+
+static void setintfield(lua_State *L, GCtab *t, const char *name, int32_t val)
+{
+  setintV(lj_tab_setstr(L, t, lj_str_newz(L, name)), val);
+}
+
+/* local info = jit.util.funcinfo(func [,pc]) */
+LJLIB_CF(jit_util_funcinfo)
+{
+  GCproto *pt = check_Lproto(L, 1);
+  if (pt) {
+    BCPos pc = (BCPos)lj_lib_optint(L, 2, 0);
+    GCtab *t;
+    lua_createtable(L, 0, 16);  /* Increment hash size if fields are added. */
+    t = tabV(L->top-1);
+    setintfield(L, t, "linedefined", pt->firstline);
+    setintfield(L, t, "lastlinedefined", pt->firstline + pt->numline);
+    setintfield(L, t, "stackslots", pt->framesize);
+    setintfield(L, t, "params", pt->numparams);
+    setintfield(L, t, "bytecodes", (int32_t)pt->sizebc);
+    setintfield(L, t, "gcconsts", (int32_t)pt->sizekgc);
+    setintfield(L, t, "nconsts", (int32_t)pt->sizekn);
+    setintfield(L, t, "upvalues", (int32_t)pt->sizeuv);
+    if (pc < pt->sizebc)
+      setintfield(L, t, "currentline", lj_debug_line(pt, pc));
+    lua_pushboolean(L, (pt->flags & PROTO_VARARG));
+    lua_setfield(L, -2, "isvararg");
+    lua_pushboolean(L, (pt->flags & PROTO_CHILD));
+    lua_setfield(L, -2, "children");
+    setstrV(L, L->top++, proto_chunkname(pt));
+    lua_setfield(L, -2, "source");
+    lj_debug_pushloc(L, pt, pc);
+    lua_setfield(L, -2, "loc");
+    setprotoV(L, lj_tab_setstr(L, t, lj_str_newlit(L, "proto")), pt);
+  } else {
+    GCfunc *fn = funcV(L->base);
+    GCtab *t;
+    lua_createtable(L, 0, 4);  /* Increment hash size if fields are added. */
+    t = tabV(L->top-1);
+    if (!iscfunc(fn))
+      setintfield(L, t, "ffid", fn->c.ffid);
+    setintptrV(lj_tab_setstr(L, t, lj_str_newlit(L, "addr")),
+	       (intptr_t)(void *)fn->c.f);
+    setintfield(L, t, "upvalues", fn->c.nupvalues);
+  }
+  return 1;
+}
+
+/* local ins, m = jit.util.funcbc(func, pc) */
+LJLIB_CF(jit_util_funcbc)
+{
+  GCproto *pt = check_Lproto(L, 0);
+  BCPos pc = (BCPos)lj_lib_checkint(L, 2);
+  if (pc < pt->sizebc) {
+    BCIns ins = proto_bc(pt)[pc];
+    BCOp op = bc_op(ins);
+    lj_assertL(op < BC__MAX, "bad bytecode op %d", op);
+    setintV(L->top, ins);
+    setintV(L->top+1, lj_bc_mode[op]);
+    L->top += 2;
+    return 2;
+  }
+  return 0;
+}
+
+/* local k = jit.util.funck(func, idx) */
+LJLIB_CF(jit_util_funck)
+{
+  GCproto *pt = check_Lproto(L, 0);
+  ptrdiff_t idx = (ptrdiff_t)lj_lib_checkint(L, 2);
+  if (idx >= 0) {
+    if (idx < (ptrdiff_t)pt->sizekn) {
+      copyTV(L, L->top-1, proto_knumtv(pt, idx));
+      return 1;
+    }
+  } else {
+    if (~idx < (ptrdiff_t)pt->sizekgc) {
+      GCobj *gc = proto_kgc(pt, idx);
+      setgcV(L, L->top-1, gc, ~gc->gch.gct);
+      return 1;
+    }
+  }
+  return 0;
+}
+
+/* local name = jit.util.funcuvname(func, idx) */
+LJLIB_CF(jit_util_funcuvname)
+{
+  GCproto *pt = check_Lproto(L, 0);
+  uint32_t idx = (uint32_t)lj_lib_checkint(L, 2);
+  if (idx < pt->sizeuv) {
+    setstrV(L, L->top-1, lj_str_newz(L, lj_debug_uvname(pt, idx)));
+    return 1;
+  }
+  return 0;
+}
+
+/* -- Reflection API for traces ------------------------------------------- */
+
+#if LJ_HASJIT
+
+/* Check trace argument. Must not throw for non-existent trace numbers. */
+static GCtrace *jit_checktrace(lua_State *L)
+{
+  TraceNo tr = (TraceNo)lj_lib_checkint(L, 1);
+  jit_State *J = L2J(L);
+  if (tr > 0 && tr < J->sizetrace)
+    return traceref(J, tr);
+  return NULL;
+}
+
+/* Names of link types. ORDER LJ_TRLINK */
+static const char *const jit_trlinkname[] = {
+  "none", "root", "loop", "tail-recursion", "up-recursion", "down-recursion",
+  "interpreter", "return", "stitch"
+};
+
+/* local info = jit.util.traceinfo(tr) */
+LJLIB_CF(jit_util_traceinfo)
+{
+  GCtrace *T = jit_checktrace(L);
+  if (T) {
+    GCtab *t;
+    lua_createtable(L, 0, 8);  /* Increment hash size if fields are added. */
+    t = tabV(L->top-1);
+    setintfield(L, t, "nins", (int32_t)T->nins - REF_BIAS - 1);
+    setintfield(L, t, "nk", REF_BIAS - (int32_t)T->nk);
+    setintfield(L, t, "link", T->link);
+    setintfield(L, t, "nexit", T->nsnap);
+    setstrV(L, L->top++, lj_str_newz(L, jit_trlinkname[T->linktype]));
+    lua_setfield(L, -2, "linktype");
+    /* There are many more fields. Add them only when needed. */
+    return 1;
+  }
+  return 0;
+}
+
+/* local m, ot, op1, op2, prev = jit.util.traceir(tr, idx) */
+LJLIB_CF(jit_util_traceir)
+{
+  GCtrace *T = jit_checktrace(L);
+  IRRef ref = (IRRef)lj_lib_checkint(L, 2) + REF_BIAS;
+  if (T && ref >= REF_BIAS && ref < T->nins) {
+    IRIns *ir = &T->ir[ref];
+    int32_t m = lj_ir_mode[ir->o];
+    setintV(L->top-2, m);
+    setintV(L->top-1, ir->ot);
+    setintV(L->top++, (int32_t)ir->op1 - (irm_op1(m)==IRMref ? REF_BIAS : 0));
+    setintV(L->top++, (int32_t)ir->op2 - (irm_op2(m)==IRMref ? REF_BIAS : 0));
+    setintV(L->top++, ir->prev);
+    return 5;
+  }
+  return 0;
+}
+
+/* local k, t [, slot] = jit.util.tracek(tr, idx) */
+LJLIB_CF(jit_util_tracek)
+{
+  GCtrace *T = jit_checktrace(L);
+  IRRef ref = (IRRef)lj_lib_checkint(L, 2) + REF_BIAS;
+  if (T && ref >= T->nk && ref < REF_BIAS) {
+    IRIns *ir = &T->ir[ref];
+    int32_t slot = -1;
+    if (ir->o == IR_KSLOT) {
+      slot = ir->op2;
+      ir = &T->ir[ir->op1];
+    }
+#if LJ_HASFFI
+    if (ir->o == IR_KINT64) ctype_loadffi(L);
+#endif
+    lj_ir_kvalue(L, L->top-2, ir);
+    setintV(L->top-1, (int32_t)irt_type(ir->t));
+    if (slot == -1)
+      return 2;
+    setintV(L->top++, slot);
+    return 3;
+  }
+  return 0;
+}
+
+/* local snap = jit.util.tracesnap(tr, sn) */
+LJLIB_CF(jit_util_tracesnap)
+{
+  GCtrace *T = jit_checktrace(L);
+  SnapNo sn = (SnapNo)lj_lib_checkint(L, 2);
+  if (T && sn < T->nsnap) {
+    SnapShot *snap = &T->snap[sn];
+    SnapEntry *map = &T->snapmap[snap->mapofs];
+    MSize n, nent = snap->nent;
+    GCtab *t;
+    lua_createtable(L, nent+2, 0);
+    t = tabV(L->top-1);
+    setintV(lj_tab_setint(L, t, 0), (int32_t)snap->ref - REF_BIAS);
+    setintV(lj_tab_setint(L, t, 1), (int32_t)snap->nslots);
+    for (n = 0; n < nent; n++)
+      setintV(lj_tab_setint(L, t, (int32_t)(n+2)), (int32_t)map[n]);
+    setintV(lj_tab_setint(L, t, (int32_t)(nent+2)), (int32_t)SNAP(255, 0, 0));
+    return 1;
+  }
+  return 0;
+}
+
+/* local mcode, addr, loop = jit.util.tracemc(tr) */
+LJLIB_CF(jit_util_tracemc)
+{
+  GCtrace *T = jit_checktrace(L);
+  if (T && T->mcode != NULL) {
+    setstrV(L, L->top-1, lj_str_new(L, (const char *)T->mcode, T->szmcode));
+    setintptrV(L->top++, (intptr_t)(void *)T->mcode);
+    setintV(L->top++, T->mcloop);
+    return 3;
+  }
+  return 0;
+}
+
+/* local addr = jit.util.traceexitstub([tr,] exitno) */
+LJLIB_CF(jit_util_traceexitstub)
+{
+#ifdef EXITSTUBS_PER_GROUP
+  ExitNo exitno = (ExitNo)lj_lib_checkint(L, 1);
+  jit_State *J = L2J(L);
+  if (exitno < EXITSTUBS_PER_GROUP*LJ_MAX_EXITSTUBGR) {
+    setintptrV(L->top-1, (intptr_t)(void *)exitstub_addr(J, exitno));
+    return 1;
+  }
+#else
+  if (L->top > L->base+1) {  /* Don't throw for one-argument variant. */
+    GCtrace *T = jit_checktrace(L);
+    ExitNo exitno = (ExitNo)lj_lib_checkint(L, 2);
+    ExitNo maxexit = T->root ? T->nsnap+1 : T->nsnap;
+    if (T && T->mcode != NULL && exitno < maxexit) {
+      setintptrV(L->top-1, (intptr_t)(void *)exitstub_trace_addr(T, exitno));
+      return 1;
+    }
+  }
+#endif
+  return 0;
+}
+
+/* local addr = jit.util.ircalladdr(idx) */
+LJLIB_CF(jit_util_ircalladdr)
+{
+  uint32_t idx = (uint32_t)lj_lib_checkint(L, 1);
+  if (idx < IRCALL__MAX) {
+    setintptrV(L->top-1, (intptr_t)(void *)lj_ir_callinfo[idx].func);
+    return 1;
+  }
+  return 0;
+}
+
+#endif
+
+#include "lj_libdef.h"
+
+static int luaopen_jit_util(lua_State *L)
+{
+  LJ_LIB_REG(L, NULL, jit_util);
+  return 1;
+}
+
+/* -- jit.opt module ------------------------------------------------------ */
+
+#if LJ_HASJIT
+
+#define LJLIB_MODULE_jit_opt
+
+/* Parse optimization level. */
+static int jitopt_level(jit_State *J, const char *str)
+{
+  if (str[0] >= '0' && str[0] <= '9' && str[1] == '\0') {
+    uint32_t flags;
+    if (str[0] == '0') flags = JIT_F_OPT_0;
+    else if (str[0] == '1') flags = JIT_F_OPT_1;
+    else if (str[0] == '2') flags = JIT_F_OPT_2;
+    else flags = JIT_F_OPT_3;
+    J->flags = (J->flags & ~JIT_F_OPT_MASK) | flags;
+    return 1;  /* Ok. */
+  }
+  return 0;  /* No match. */
+}
+
+/* Parse optimization flag. */
+static int jitopt_flag(jit_State *J, const char *str)
+{
+  const char *lst = JIT_F_OPTSTRING;
+  uint32_t opt;
+  int set = 1;
+  if (str[0] == '+') {
+    str++;
+  } else if (str[0] == '-') {
+    str++;
+    set = 0;
+  } else if (str[0] == 'n' && str[1] == 'o') {
+    str += str[2] == '-' ? 3 : 2;
+    set = 0;
+  }
+  for (opt = JIT_F_OPT; ; opt <<= 1) {
+    size_t len = *(const uint8_t *)lst;
+    if (len == 0)
+      break;
+    if (strncmp(str, lst+1, len) == 0 && str[len] == '\0') {
+      if (set) J->flags |= opt; else J->flags &= ~opt;
+      return 1;  /* Ok. */
+    }
+    lst += 1+len;
+  }
+  return 0;  /* No match. */
+}
+
+/* Parse optimization parameter. */
+static int jitopt_param(jit_State *J, const char *str)
+{
+  const char *lst = JIT_P_STRING;
+  int i;
+  for (i = 0; i < JIT_P__MAX; i++) {
+    size_t len = *(const uint8_t *)lst;
+    lj_assertJ(len != 0, "bad JIT_P_STRING");
+    if (strncmp(str, lst+1, len) == 0 && str[len] == '=') {
+      int32_t n = 0;
+      const char *p = &str[len+1];
+      while (*p >= '0' && *p <= '9')
+	n = n*10 + (*p++ - '0');
+      if (*p) return 0;  /* Malformed number. */
+      J->param[i] = n;
+      if (i == JIT_P_hotloop)
+	lj_dispatch_init_hotcount(J2G(J));
+      return 1;  /* Ok. */
+    }
+    lst += 1+len;
+  }
+  return 0;  /* No match. */
+}
+
+/* jit.opt.start(flags...) */
+LJLIB_CF(jit_opt_start)
+{
+  jit_State *J = L2J(L);
+  int nargs = (int)(L->top - L->base);
+  if (nargs == 0) {
+    J->flags = (J->flags & ~JIT_F_OPT_MASK) | JIT_F_OPT_DEFAULT;
+  } else {
+    int i;
+    for (i = 1; i <= nargs; i++) {
+      const char *str = strdata(lj_lib_checkstr(L, i));
+      if (!jitopt_level(J, str) &&
+	  !jitopt_flag(J, str) &&
+	  !jitopt_param(J, str))
+	lj_err_callerv(L, LJ_ERR_JITOPT, str);
+    }
+  }
+  return 0;
+}
+
+#include "lj_libdef.h"
+
+#endif
+
+/* -- jit.profile module -------------------------------------------------- */
+
+#if LJ_HASPROFILE
+
+#define LJLIB_MODULE_jit_profile
+
+/* Not loaded by default, use: local profile = require("jit.profile") */
+
+#define KEY_PROFILE_THREAD	(U64x(80000000,00000000)|'t')
+#define KEY_PROFILE_FUNC	(U64x(80000000,00000000)|'f')
+
+static void jit_profile_callback(lua_State *L2, lua_State *L, int samples,
+				 int vmstate)
+{
+  TValue key;
+  cTValue *tv;
+  key.u64 = KEY_PROFILE_FUNC;
+  tv = lj_tab_get(L, tabV(registry(L)), &key);
+  if (tvisfunc(tv)) {
+    char vmst = (char)vmstate;
+    int status;
+    setfuncV(L2, L2->top++, funcV(tv));
+    setthreadV(L2, L2->top++, L);
+    setintV(L2->top++, samples);
+    setstrV(L2, L2->top++, lj_str_new(L2, &vmst, 1));
+    status = lua_pcall(L2, 3, 0, 0);  /* callback(thread, samples, vmstate) */
+    if (status) {
+      if (G(L2)->panic) G(L2)->panic(L2);
+      exit(EXIT_FAILURE);
+    }
+    lj_trace_abort(G(L2));
+  }
+}
+
+/* profile.start(mode, cb) */
+LJLIB_CF(jit_profile_start)
+{
+  GCtab *registry = tabV(registry(L));
+  GCstr *mode = lj_lib_optstr(L, 1);
+  GCfunc *func = lj_lib_checkfunc(L, 2);
+  lua_State *L2 = lua_newthread(L);  /* Thread that runs profiler callback. */
+  TValue key;
+  /* Anchor thread and function in registry. */
+  key.u64 = KEY_PROFILE_THREAD;
+  setthreadV(L, lj_tab_set(L, registry, &key), L2);
+  key.u64 = KEY_PROFILE_FUNC;
+  setfuncV(L, lj_tab_set(L, registry, &key), func);
+  lj_gc_anybarriert(L, registry);
+  luaJIT_profile_start(L, mode ? strdata(mode) : "",
+		       (luaJIT_profile_callback)jit_profile_callback, L2);
+  return 0;
+}
+
+/* profile.stop() */
+LJLIB_CF(jit_profile_stop)
+{
+  GCtab *registry;
+  TValue key;
+  luaJIT_profile_stop(L);
+  registry = tabV(registry(L));
+  key.u64 = KEY_PROFILE_THREAD;
+  setnilV(lj_tab_set(L, registry, &key));
+  key.u64 = KEY_PROFILE_FUNC;
+  setnilV(lj_tab_set(L, registry, &key));
+  lj_gc_anybarriert(L, registry);
+  return 0;
+}
+
+/* dump = profile.dumpstack([thread,] fmt, depth) */
+LJLIB_CF(jit_profile_dumpstack)
+{
+  lua_State *L2 = L;
+  int arg = 0;
+  size_t len;
+  int depth;
+  GCstr *fmt;
+  const char *p;
+  if (L->top > L->base && tvisthread(L->base)) {
+    L2 = threadV(L->base);
+    arg = 1;
+  }
+  fmt = lj_lib_checkstr(L, arg+1);
+  depth = lj_lib_checkint(L, arg+2);
+  p = luaJIT_profile_dumpstack(L2, strdata(fmt), depth, &len);
+  lua_pushlstring(L, p, len);
+  return 1;
+}
+
+#include "lj_libdef.h"
+
+static int luaopen_jit_profile(lua_State *L)
+{
+  LJ_LIB_REG(L, NULL, jit_profile);
+  return 1;
+}
+
+#endif
+
+/* -- JIT compiler initialization ----------------------------------------- */
+
+#if LJ_HASJIT
+/* Default values for JIT parameters. */
+static const int32_t jit_param_default[JIT_P__MAX+1] = {
+#define JIT_PARAMINIT(len, name, value)	(value),
+JIT_PARAMDEF(JIT_PARAMINIT)
+#undef JIT_PARAMINIT
+  0
+};
+
+#if LJ_TARGET_ARM && LJ_TARGET_LINUX
+#include <sys/utsname.h>
+#endif
+
+/* Arch-dependent CPU feature detection. */
+static uint32_t jit_cpudetect(void)
+{
+  uint32_t flags = 0;
+#if LJ_TARGET_X86ORX64
+
+  uint32_t vendor[4];
+  uint32_t features[4];
+  if (lj_vm_cpuid(0, vendor) && lj_vm_cpuid(1, features)) {
+    flags |= ((features[2] >> 0)&1) * JIT_F_SSE3;
+    flags |= ((features[2] >> 19)&1) * JIT_F_SSE4_1;
+    if (vendor[0] >= 7) {
+      uint32_t xfeatures[4];
+      lj_vm_cpuid(7, xfeatures);
+      flags |= ((xfeatures[1] >> 8)&1) * JIT_F_BMI2;
+    }
+  }
+  /* Don't bother checking for SSE2 -- the VM will crash before getting here. */
+
+#elif LJ_TARGET_ARM
+
+  int ver = LJ_ARCH_VERSION;  /* Compile-time ARM CPU detection. */
+#if LJ_TARGET_LINUX
+  if (ver < 70) {  /* Runtime ARM CPU detection. */
+    struct utsname ut;
+    uname(&ut);
+    if (strncmp(ut.machine, "armv", 4) == 0) {
+      if (ut.machine[4] >= '8') ver = 80;
+      else if (ut.machine[4] == '7') ver = 70;
+      else if (ut.machine[4] == '6') ver = 60;
+    }
+  }
+#endif
+  flags |= ver >= 70 ? JIT_F_ARMV7 :
+	   ver >= 61 ? JIT_F_ARMV6T2_ :
+	   ver >= 60 ? JIT_F_ARMV6_ : 0;
+  flags |= LJ_ARCH_HASFPU == 0 ? 0 : ver >= 70 ? JIT_F_VFPV3 : JIT_F_VFPV2;
+
+#elif LJ_TARGET_ARM64
+
+  /* No optional CPU features to detect (for now). */
+
+#elif LJ_TARGET_PPC
+
+#if LJ_ARCH_SQRT
+  flags |= JIT_F_SQRT;
+#endif
+#if LJ_ARCH_ROUND
+  flags |= JIT_F_ROUND;
+#endif
+
+#elif LJ_TARGET_MIPS
+
+  /* Compile-time MIPS CPU detection. */
+#if LJ_ARCH_VERSION >= 20
+  flags |= JIT_F_MIPSXXR2;
+#endif
+  /* Runtime MIPS CPU detection. */
+#if defined(__GNUC__)
+  if (!(flags & JIT_F_MIPSXXR2)) {
+    int x;
+#ifdef __mips16
+    x = 0;  /* Runtime detection is difficult. Ensure optimal -march flags. */
+#else
+    /* On MIPS32R1 rotr is treated as srl. rotr r2,r2,1 -> srl r2,r2,1. */
+    __asm__("li $2, 1\n\t.long 0x00221042\n\tmove %0, $2" : "=r"(x) : : "$2");
+#endif
+    if (x) flags |= JIT_F_MIPSXXR2;  /* Either 0x80000000 (R2) or 0 (R1). */
+  }
+#endif
+
+#else
+#error "Missing CPU detection for this architecture"
+#endif
+  return flags;
+}
+
+/* Initialize JIT compiler. */
+static void jit_init(lua_State *L)
+{
+  jit_State *J = L2J(L);
+  J->flags = jit_cpudetect() | JIT_F_ON | JIT_F_OPT_DEFAULT;
+  memcpy(J->param, jit_param_default, sizeof(J->param));
+  lj_dispatch_update(G(L));
+}
+#endif
+
+LUALIB_API int luaopen_jit(lua_State *L)
+{
+#if LJ_HASJIT
+  jit_init(L);
+#endif
+  lua_pushliteral(L, LJ_OS_NAME);
+  lua_pushliteral(L, LJ_ARCH_NAME);
+  lua_pushinteger(L, LUAJIT_VERSION_NUM);
+  lua_pushliteral(L, LUAJIT_VERSION);
+  LJ_LIB_REG(L, LUA_JITLIBNAME, jit);
+#if LJ_HASPROFILE
+  lj_lib_prereg(L, LUA_JITLIBNAME ".profile", luaopen_jit_profile,
+		tabref(L->env));
+#endif
+#ifndef LUAJIT_DISABLE_JITUTIL
+  lj_lib_prereg(L, LUA_JITLIBNAME ".util", luaopen_jit_util, tabref(L->env));
+#endif
+#if LJ_HASJIT
+  LJ_LIB_REG(L, "jit.opt", jit_opt);
+#endif
+  L->top -= 2;
+  return 1;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lib_math.c b/libs/luajit-cmake/luajit/src/lib_math.c
new file mode 100644
index 0000000..b677bbc
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lib_math.c
@@ -0,0 +1,201 @@
+/*
+** Math library.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include <math.h>
+
+#define lib_math_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_lib.h"
+#include "lj_vm.h"
+#include "lj_prng.h"
+
+/* ------------------------------------------------------------------------ */
+
+#define LJLIB_MODULE_math
+
+LJLIB_ASM(math_abs)		LJLIB_REC(.)
+{
+  lj_lib_checknumber(L, 1);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(math_floor)		LJLIB_REC(math_round IRFPM_FLOOR)
+LJLIB_ASM_(math_ceil)		LJLIB_REC(math_round IRFPM_CEIL)
+
+LJLIB_ASM(math_sqrt)		LJLIB_REC(math_unary IRFPM_SQRT)
+{
+  lj_lib_checknum(L, 1);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(math_log10)		LJLIB_REC(math_call IRCALL_log10)
+LJLIB_ASM_(math_exp)		LJLIB_REC(math_call IRCALL_exp)
+LJLIB_ASM_(math_sin)		LJLIB_REC(math_call IRCALL_sin)
+LJLIB_ASM_(math_cos)		LJLIB_REC(math_call IRCALL_cos)
+LJLIB_ASM_(math_tan)		LJLIB_REC(math_call IRCALL_tan)
+LJLIB_ASM_(math_asin)		LJLIB_REC(math_call IRCALL_asin)
+LJLIB_ASM_(math_acos)		LJLIB_REC(math_call IRCALL_acos)
+LJLIB_ASM_(math_atan)		LJLIB_REC(math_call IRCALL_atan)
+LJLIB_ASM_(math_sinh)		LJLIB_REC(math_call IRCALL_sinh)
+LJLIB_ASM_(math_cosh)		LJLIB_REC(math_call IRCALL_cosh)
+LJLIB_ASM_(math_tanh)		LJLIB_REC(math_call IRCALL_tanh)
+LJLIB_ASM_(math_frexp)
+LJLIB_ASM_(math_modf)
+
+LJLIB_ASM(math_log)		LJLIB_REC(math_log)
+{
+  double x = lj_lib_checknum(L, 1);
+  if (L->base+1 < L->top) {
+    double y = lj_lib_checknum(L, 2);
+#ifdef LUAJIT_NO_LOG2
+    x = log(x); y = 1.0 / log(y);
+#else
+    x = lj_vm_log2(x); y = 1.0 / lj_vm_log2(y);
+#endif
+    setnumV(L->base-1-LJ_FR2, x*y);  /* Do NOT join the expression to x / y. */
+    return FFH_RES(1);
+  }
+  return FFH_RETRY;
+}
+
+LJLIB_LUA(math_deg) /* function(x) return x * 57.29577951308232 end */
+LJLIB_LUA(math_rad) /* function(x) return x * 0.017453292519943295 end */
+
+LJLIB_ASM(math_atan2)		LJLIB_REC(.)
+{
+  lj_lib_checknum(L, 1);
+  lj_lib_checknum(L, 2);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(math_pow)		LJLIB_REC(.)
+LJLIB_ASM_(math_fmod)
+
+LJLIB_ASM(math_ldexp)		LJLIB_REC(.)
+{
+  lj_lib_checknum(L, 1);
+#if LJ_DUALNUM && !LJ_TARGET_X86ORX64
+  lj_lib_checkint(L, 2);
+#else
+  lj_lib_checknum(L, 2);
+#endif
+  return FFH_RETRY;
+}
+
+LJLIB_ASM(math_min)		LJLIB_REC(math_minmax IR_MIN)
+{
+  int i = 0;
+  do { lj_lib_checknumber(L, ++i); } while (L->base+i < L->top);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(math_max)		LJLIB_REC(math_minmax IR_MAX)
+
+LJLIB_PUSH(3.14159265358979323846) LJLIB_SET(pi)
+LJLIB_PUSH(1e310) LJLIB_SET(huge)
+
+/* ------------------------------------------------------------------------ */
+
+/* This implements a Tausworthe PRNG with period 2^223. Based on:
+**   Tables of maximally-equidistributed combined LFSR generators,
+**   Pierre L'Ecuyer, 1991, table 3, 1st entry.
+** Full-period ME-CF generator with L=64, J=4, k=223, N1=49.
+*/
+
+/* Union needed for bit-pattern conversion between uint64_t and double. */
+typedef union { uint64_t u64; double d; } U64double;
+
+/* PRNG seeding function. */
+static void random_seed(PRNGState *rs, double d)
+{
+  uint32_t r = 0x11090601;  /* 64-k[i] as four 8 bit constants. */
+  int i;
+  for (i = 0; i < 4; i++) {
+    U64double u;
+    uint32_t m = 1u << (r&255);
+    r >>= 8;
+    u.d = d = d * 3.14159265358979323846 + 2.7182818284590452354;
+    if (u.u64 < m) u.u64 += m;  /* Ensure k[i] MSB of u[i] are non-zero. */
+    rs->u[i] = u.u64;
+  }
+  for (i = 0; i < 10; i++)
+    (void)lj_prng_u64(rs);
+}
+
+/* PRNG extract function. */
+LJLIB_PUSH(top-2)  /* Upvalue holds userdata with PRNGState. */
+LJLIB_CF(math_random)		LJLIB_REC(.)
+{
+  int n = (int)(L->top - L->base);
+  PRNGState *rs = (PRNGState *)(uddata(udataV(lj_lib_upvalue(L, 1))));
+  U64double u;
+  double d;
+  u.u64 = lj_prng_u64d(rs);
+  d = u.d - 1.0;
+  if (n > 0) {
+#if LJ_DUALNUM
+    int isint = 1;
+    double r1;
+    lj_lib_checknumber(L, 1);
+    if (tvisint(L->base)) {
+      r1 = (lua_Number)intV(L->base);
+    } else {
+      isint = 0;
+      r1 = numV(L->base);
+    }
+#else
+    double r1 = lj_lib_checknum(L, 1);
+#endif
+    if (n == 1) {
+      d = lj_vm_floor(d*r1) + 1.0;  /* d is an int in range [1, r1] */
+    } else {
+#if LJ_DUALNUM
+      double r2;
+      lj_lib_checknumber(L, 2);
+      if (tvisint(L->base+1)) {
+	r2 = (lua_Number)intV(L->base+1);
+      } else {
+	isint = 0;
+	r2 = numV(L->base+1);
+      }
+#else
+      double r2 = lj_lib_checknum(L, 2);
+#endif
+      d = lj_vm_floor(d*(r2-r1+1.0)) + r1;  /* d is an int in range [r1, r2] */
+    }
+#if LJ_DUALNUM
+    if (isint) {
+      setintV(L->top-1, lj_num2int(d));
+      return 1;
+    }
+#endif
+  }  /* else: d is a double in range [0, 1] */
+  setnumV(L->top++, d);
+  return 1;
+}
+
+/* PRNG seed function. */
+LJLIB_PUSH(top-2)  /* Upvalue holds userdata with PRNGState. */
+LJLIB_CF(math_randomseed)
+{
+  PRNGState *rs = (PRNGState *)(uddata(udataV(lj_lib_upvalue(L, 1))));
+  random_seed(rs, lj_lib_checknum(L, 1));
+  return 0;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#include "lj_libdef.h"
+
+LUALIB_API int luaopen_math(lua_State *L)
+{
+  PRNGState *rs = (PRNGState *)lua_newuserdata(L, sizeof(PRNGState));
+  lj_prng_seed_fixed(rs);
+  LJ_LIB_REG(L, LUA_MATHLIBNAME, math);
+  return 1;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lib_os.c b/libs/luajit-cmake/luajit/src/lib_os.c
new file mode 100644
index 0000000..6bcd014
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lib_os.c
@@ -0,0 +1,292 @@
+/*
+** OS library.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#include <errno.h>
+#include <time.h>
+
+#define lib_os_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_lib.h"
+
+#if LJ_TARGET_POSIX
+#include <unistd.h>
+#else
+#include <stdio.h>
+#endif
+
+#if !LJ_TARGET_PSVITA
+#include <locale.h>
+#endif
+
+/* ------------------------------------------------------------------------ */
+
+#define LJLIB_MODULE_os
+
+LJLIB_CF(os_execute)
+{
+#if LJ_NO_SYSTEM
+#if LJ_52
+  errno = ENOSYS;
+  return luaL_fileresult(L, 0, NULL);
+#else
+  lua_pushinteger(L, -1);
+  return 1;
+#endif
+#else
+  const char *cmd = luaL_optstring(L, 1, NULL);
+  int stat = system(cmd);
+#if LJ_52
+  if (cmd)
+    return luaL_execresult(L, stat);
+  setboolV(L->top++, 1);
+#else
+  setintV(L->top++, stat);
+#endif
+  return 1;
+#endif
+}
+
+LJLIB_CF(os_remove)
+{
+  const char *filename = luaL_checkstring(L, 1);
+  return luaL_fileresult(L, remove(filename) == 0, filename);
+}
+
+LJLIB_CF(os_rename)
+{
+  const char *fromname = luaL_checkstring(L, 1);
+  const char *toname = luaL_checkstring(L, 2);
+  return luaL_fileresult(L, rename(fromname, toname) == 0, fromname);
+}
+
+LJLIB_CF(os_tmpname)
+{
+#if LJ_TARGET_PS3 || LJ_TARGET_PS4 || LJ_TARGET_PS5 || LJ_TARGET_PSVITA || LJ_TARGET_NX
+  lj_err_caller(L, LJ_ERR_OSUNIQF);
+  return 0;
+#else
+#if LJ_TARGET_POSIX
+  char buf[15+1];
+  int fp;
+  strcpy(buf, "/tmp/lua_XXXXXX");
+  fp = mkstemp(buf);
+  if (fp != -1)
+    close(fp);
+  else
+    lj_err_caller(L, LJ_ERR_OSUNIQF);
+#else
+  char buf[L_tmpnam];
+  if (tmpnam(buf) == NULL)
+    lj_err_caller(L, LJ_ERR_OSUNIQF);
+#endif
+  lua_pushstring(L, buf);
+  return 1;
+#endif
+}
+
+LJLIB_CF(os_getenv)
+{
+#if LJ_TARGET_CONSOLE
+  lua_pushnil(L);
+#else
+  lua_pushstring(L, getenv(luaL_checkstring(L, 1)));  /* if NULL push nil */
+#endif
+  return 1;
+}
+
+LJLIB_CF(os_exit)
+{
+  int status;
+  if (L->base < L->top && tvisbool(L->base))
+    status = boolV(L->base) ? EXIT_SUCCESS : EXIT_FAILURE;
+  else
+    status = lj_lib_optint(L, 1, EXIT_SUCCESS);
+  if (L->base+1 < L->top && tvistruecond(L->base+1))
+    lua_close(L);
+  exit(status);
+  return 0;  /* Unreachable. */
+}
+
+LJLIB_CF(os_clock)
+{
+  setnumV(L->top++, ((lua_Number)clock())*(1.0/(lua_Number)CLOCKS_PER_SEC));
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static void setfield(lua_State *L, const char *key, int value)
+{
+  lua_pushinteger(L, value);
+  lua_setfield(L, -2, key);
+}
+
+static void setboolfield(lua_State *L, const char *key, int value)
+{
+  if (value < 0)  /* undefined? */
+    return;  /* does not set field */
+  lua_pushboolean(L, value);
+  lua_setfield(L, -2, key);
+}
+
+static int getboolfield(lua_State *L, const char *key)
+{
+  int res;
+  lua_getfield(L, -1, key);
+  res = lua_isnil(L, -1) ? -1 : lua_toboolean(L, -1);
+  lua_pop(L, 1);
+  return res;
+}
+
+static int getfield(lua_State *L, const char *key, int d)
+{
+  int res;
+  lua_getfield(L, -1, key);
+  if (lua_isnumber(L, -1)) {
+    res = (int)lua_tointeger(L, -1);
+  } else {
+    if (d < 0)
+      lj_err_callerv(L, LJ_ERR_OSDATEF, key);
+    res = d;
+  }
+  lua_pop(L, 1);
+  return res;
+}
+
+LJLIB_CF(os_date)
+{
+  const char *s = luaL_optstring(L, 1, "%c");
+  time_t t = luaL_opt(L, (time_t)luaL_checknumber, 2, time(NULL));
+  struct tm *stm;
+#if LJ_TARGET_POSIX
+  struct tm rtm;
+#endif
+  if (*s == '!') {  /* UTC? */
+    s++;  /* Skip '!' */
+#if LJ_TARGET_POSIX
+    stm = gmtime_r(&t, &rtm);
+#else
+    stm = gmtime(&t);
+#endif
+  } else {
+#if LJ_TARGET_POSIX
+    stm = localtime_r(&t, &rtm);
+#else
+    stm = localtime(&t);
+#endif
+  }
+  if (stm == NULL) {  /* Invalid date? */
+    setnilV(L->top++);
+  } else if (strcmp(s, "*t") == 0) {
+    lua_createtable(L, 0, 9);  /* 9 = number of fields */
+    setfield(L, "sec", stm->tm_sec);
+    setfield(L, "min", stm->tm_min);
+    setfield(L, "hour", stm->tm_hour);
+    setfield(L, "day", stm->tm_mday);
+    setfield(L, "month", stm->tm_mon+1);
+    setfield(L, "year", stm->tm_year+1900);
+    setfield(L, "wday", stm->tm_wday+1);
+    setfield(L, "yday", stm->tm_yday+1);
+    setboolfield(L, "isdst", stm->tm_isdst);
+  } else if (*s) {
+    SBuf *sb = &G(L)->tmpbuf;
+    MSize sz = 0, retry = 4;
+    const char *q;
+    for (q = s; *q; q++)
+      sz += (*q == '%') ? 30 : 1;  /* Overflow doesn't matter. */
+    setsbufL(sb, L);
+    while (retry--) {  /* Limit growth for invalid format or empty result. */
+      char *buf = lj_buf_need(sb, sz);
+      size_t len = strftime(buf, sbufsz(sb), s, stm);
+      if (len) {
+	setstrV(L, L->top++, lj_str_new(L, buf, len));
+	lj_gc_check(L);
+	break;
+      }
+      sz += (sz|1);
+    }
+  } else {
+    setstrV(L, L->top++, &G(L)->strempty);
+  }
+  return 1;
+}
+
+LJLIB_CF(os_time)
+{
+  time_t t;
+  if (lua_isnoneornil(L, 1)) {  /* called without args? */
+    t = time(NULL);  /* get current time */
+  } else {
+    struct tm ts;
+    luaL_checktype(L, 1, LUA_TTABLE);
+    lua_settop(L, 1);  /* make sure table is at the top */
+    ts.tm_sec = getfield(L, "sec", 0);
+    ts.tm_min = getfield(L, "min", 0);
+    ts.tm_hour = getfield(L, "hour", 12);
+    ts.tm_mday = getfield(L, "day", -1);
+    ts.tm_mon = getfield(L, "month", -1) - 1;
+    ts.tm_year = getfield(L, "year", -1) - 1900;
+    ts.tm_isdst = getboolfield(L, "isdst");
+    t = mktime(&ts);
+  }
+  if (t == (time_t)(-1))
+    lua_pushnil(L);
+  else
+    lua_pushnumber(L, (lua_Number)t);
+  return 1;
+}
+
+LJLIB_CF(os_difftime)
+{
+  lua_pushnumber(L, difftime((time_t)(luaL_checknumber(L, 1)),
+			     (time_t)(luaL_optnumber(L, 2, (lua_Number)0))));
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+LJLIB_CF(os_setlocale)
+{
+#if LJ_TARGET_PSVITA
+  lua_pushliteral(L, "C");
+#else
+  GCstr *s = lj_lib_optstr(L, 1);
+  const char *str = s ? strdata(s) : NULL;
+  int opt = lj_lib_checkopt(L, 2, 6,
+    "\5ctype\7numeric\4time\7collate\10monetary\1\377\3all");
+  if (opt == 0) opt = LC_CTYPE;
+  else if (opt == 1) opt = LC_NUMERIC;
+  else if (opt == 2) opt = LC_TIME;
+  else if (opt == 3) opt = LC_COLLATE;
+  else if (opt == 4) opt = LC_MONETARY;
+  else if (opt == 6) opt = LC_ALL;
+  lua_pushstring(L, setlocale(opt, str));
+#endif
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#include "lj_libdef.h"
+
+LUALIB_API int luaopen_os(lua_State *L)
+{
+  LJ_LIB_REG(L, LUA_OSLIBNAME, os);
+  return 1;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lib_package.c b/libs/luajit-cmake/luajit/src/lib_package.c
new file mode 100644
index 0000000..63a9121
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lib_package.c
@@ -0,0 +1,628 @@
+/*
+** Package library.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2012 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lib_package_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_lib.h"
+
+/* ------------------------------------------------------------------------ */
+
+/* Error codes for ll_loadfunc. */
+#define PACKAGE_ERR_LIB		1
+#define PACKAGE_ERR_FUNC	2
+#define PACKAGE_ERR_LOAD	3
+
+/* Redefined in platform specific part. */
+#define PACKAGE_LIB_FAIL	"open"
+#define setprogdir(L)		((void)0)
+
+/* Symbol name prefixes. */
+#define SYMPREFIX_CF		"luaopen_%s"
+#define SYMPREFIX_BC		"luaJIT_BC_%s"
+
+#if LJ_TARGET_DLOPEN
+
+#include <dlfcn.h>
+
+static void ll_unloadlib(void *lib)
+{
+  dlclose(lib);
+}
+
+static void *ll_load(lua_State *L, const char *path, int gl)
+{
+  void *lib = dlopen(path, RTLD_NOW | (gl ? RTLD_GLOBAL : RTLD_LOCAL));
+  if (lib == NULL) lua_pushstring(L, dlerror());
+  return lib;
+}
+
+static lua_CFunction ll_sym(lua_State *L, void *lib, const char *sym)
+{
+  lua_CFunction f = (lua_CFunction)dlsym(lib, sym);
+  if (f == NULL) lua_pushstring(L, dlerror());
+  return f;
+}
+
+static const char *ll_bcsym(void *lib, const char *sym)
+{
+#if defined(RTLD_DEFAULT) && !defined(NO_RTLD_DEFAULT)
+  if (lib == NULL) lib = RTLD_DEFAULT;
+#elif LJ_TARGET_OSX || LJ_TARGET_BSD
+  if (lib == NULL) lib = (void *)(intptr_t)-2;
+#endif
+  return (const char *)dlsym(lib, sym);
+}
+
+#elif LJ_TARGET_WINDOWS
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#ifndef GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS
+#define GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS  4
+#define GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT  2
+BOOL WINAPI GetModuleHandleExA(DWORD, LPCSTR, HMODULE*);
+#endif
+
+#if LJ_TARGET_UWP
+void *LJ_WIN_LOADLIBA(const char *path)
+{
+  DWORD err = GetLastError();
+  wchar_t wpath[256];
+  HANDLE lib = NULL;
+  if (MultiByteToWideChar(CP_ACP, 0, path, -1, wpath, 256) > 0) {
+    lib = LoadPackagedLibrary(wpath, 0);
+  }
+  SetLastError(err);
+  return lib;
+}
+#endif
+
+#undef setprogdir
+
+static void setprogdir(lua_State *L)
+{
+  char buff[MAX_PATH + 1];
+  char *lb;
+  DWORD nsize = sizeof(buff);
+  DWORD n = GetModuleFileNameA(NULL, buff, nsize);
+  if (n == 0 || n == nsize || (lb = strrchr(buff, '\\')) == NULL) {
+    luaL_error(L, "unable to get ModuleFileName");
+  } else {
+    *lb = '\0';
+    luaL_gsub(L, lua_tostring(L, -1), LUA_EXECDIR, buff);
+    lua_remove(L, -2);  /* remove original string */
+  }
+}
+
+static void pusherror(lua_State *L)
+{
+  DWORD error = GetLastError();
+#if LJ_TARGET_XBOXONE
+  wchar_t wbuffer[128];
+  char buffer[128*2];
+  if (FormatMessageW(FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM,
+      NULL, error, 0, wbuffer, sizeof(wbuffer)/sizeof(wchar_t), NULL) &&
+      WideCharToMultiByte(CP_ACP, 0, wbuffer, 128, buffer, 128*2, NULL, NULL))
+#else
+  char buffer[128];
+  if (FormatMessageA(FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM,
+      NULL, error, 0, buffer, sizeof(buffer), NULL))
+#endif
+    lua_pushstring(L, buffer);
+  else
+    lua_pushfstring(L, "system error %d\n", error);
+}
+
+static void ll_unloadlib(void *lib)
+{
+  FreeLibrary((HINSTANCE)lib);
+}
+
+static void *ll_load(lua_State *L, const char *path, int gl)
+{
+  HINSTANCE lib = LJ_WIN_LOADLIBA(path);
+  if (lib == NULL) pusherror(L);
+  UNUSED(gl);
+  return lib;
+}
+
+static lua_CFunction ll_sym(lua_State *L, void *lib, const char *sym)
+{
+  lua_CFunction f = (lua_CFunction)GetProcAddress((HINSTANCE)lib, sym);
+  if (f == NULL) pusherror(L);
+  return f;
+}
+
+#if LJ_TARGET_UWP
+EXTERN_C IMAGE_DOS_HEADER __ImageBase;
+#endif
+
+static const char *ll_bcsym(void *lib, const char *sym)
+{
+  if (lib) {
+    return (const char *)GetProcAddress((HINSTANCE)lib, sym);
+  } else {
+#if LJ_TARGET_UWP
+    return (const char *)GetProcAddress((HINSTANCE)&__ImageBase, sym);
+#else
+    HINSTANCE h = GetModuleHandleA(NULL);
+    const char *p = (const char *)GetProcAddress(h, sym);
+    if (p == NULL && GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS|GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
+					(const char *)ll_bcsym, &h))
+      p = (const char *)GetProcAddress(h, sym);
+    return p;
+#endif
+  }
+}
+
+#else
+
+#undef PACKAGE_LIB_FAIL
+#define PACKAGE_LIB_FAIL	"absent"
+
+#define DLMSG	"dynamic libraries not enabled; no support for target OS"
+
+static void ll_unloadlib(void *lib)
+{
+  UNUSED(lib);
+}
+
+static void *ll_load(lua_State *L, const char *path, int gl)
+{
+  UNUSED(path); UNUSED(gl);
+  lua_pushliteral(L, DLMSG);
+  return NULL;
+}
+
+static lua_CFunction ll_sym(lua_State *L, void *lib, const char *sym)
+{
+  UNUSED(lib); UNUSED(sym);
+  lua_pushliteral(L, DLMSG);
+  return NULL;
+}
+
+static const char *ll_bcsym(void *lib, const char *sym)
+{
+  UNUSED(lib); UNUSED(sym);
+  return NULL;
+}
+
+#endif
+
+/* ------------------------------------------------------------------------ */
+
+static void **ll_register(lua_State *L, const char *path)
+{
+  void **plib;
+  lua_pushfstring(L, "LOADLIB: %s", path);
+  lua_gettable(L, LUA_REGISTRYINDEX);  /* check library in registry? */
+  if (!lua_isnil(L, -1)) {  /* is there an entry? */
+    plib = (void **)lua_touserdata(L, -1);
+  } else {  /* no entry yet; create one */
+    lua_pop(L, 1);
+    plib = (void **)lua_newuserdata(L, sizeof(void *));
+    *plib = NULL;
+    luaL_setmetatable(L, "_LOADLIB");
+    lua_pushfstring(L, "LOADLIB: %s", path);
+    lua_pushvalue(L, -2);
+    lua_settable(L, LUA_REGISTRYINDEX);
+  }
+  return plib;
+}
+
+static const char *mksymname(lua_State *L, const char *modname,
+			     const char *prefix)
+{
+  const char *funcname;
+  const char *mark = strchr(modname, *LUA_IGMARK);
+  if (mark) modname = mark + 1;
+  funcname = luaL_gsub(L, modname, ".", "_");
+  funcname = lua_pushfstring(L, prefix, funcname);
+  lua_remove(L, -2);  /* remove 'gsub' result */
+  return funcname;
+}
+
+static int ll_loadfunc(lua_State *L, const char *path, const char *name, int r)
+{
+  void **reg;
+  if (strlen(path) >= 4096) {
+    lua_pushliteral(L, "path too long");
+    return PACKAGE_ERR_LIB;
+  }
+  reg = ll_register(L, path);
+  if (*reg == NULL) *reg = ll_load(L, path, (*name == '*'));
+  if (*reg == NULL) {
+    return PACKAGE_ERR_LIB;  /* Unable to load library. */
+  } else if (*name == '*') {  /* Only load library into global namespace. */
+    lua_pushboolean(L, 1);
+    return 0;
+  } else {
+    const char *sym = r ? name : mksymname(L, name, SYMPREFIX_CF);
+    lua_CFunction f = ll_sym(L, *reg, sym);
+    if (f) {
+      lua_pushcfunction(L, f);
+      return 0;
+    }
+    if (!r) {
+      const char *bcdata = ll_bcsym(*reg, mksymname(L, name, SYMPREFIX_BC));
+      lua_pop(L, 1);
+      if (bcdata) {
+	if (luaL_loadbuffer(L, bcdata, ~(size_t)0, name) != 0)
+	  return PACKAGE_ERR_LOAD;
+	return 0;
+      }
+    }
+    return PACKAGE_ERR_FUNC;  /* Unable to find function. */
+  }
+}
+
+static int lj_cf_package_loadlib(lua_State *L)
+{
+  const char *path = luaL_checkstring(L, 1);
+  const char *init = luaL_checkstring(L, 2);
+  int st = ll_loadfunc(L, path, init, 1);
+  if (st == 0) {  /* no errors? */
+    return 1;  /* return the loaded function */
+  } else {  /* error; error message is on stack top */
+    lua_pushnil(L);
+    lua_insert(L, -2);
+    lua_pushstring(L, (st == PACKAGE_ERR_LIB) ?  PACKAGE_LIB_FAIL : "init");
+    return 3;  /* return nil, error message, and where */
+  }
+}
+
+static int lj_cf_package_unloadlib(lua_State *L)
+{
+  void **lib = (void **)luaL_checkudata(L, 1, "_LOADLIB");
+  if (*lib) ll_unloadlib(*lib);
+  *lib = NULL;  /* mark library as closed */
+  return 0;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static int readable(const char *filename)
+{
+  FILE *f = fopen(filename, "r");  /* try to open file */
+  if (f == NULL) return 0;  /* open failed */
+  fclose(f);
+  return 1;
+}
+
+static const char *pushnexttemplate(lua_State *L, const char *path)
+{
+  const char *l;
+  while (*path == *LUA_PATHSEP) path++;  /* skip separators */
+  if (*path == '\0') return NULL;  /* no more templates */
+  l = strchr(path, *LUA_PATHSEP);  /* find next separator */
+  if (l == NULL) l = path + strlen(path);
+  lua_pushlstring(L, path, (size_t)(l - path));  /* template */
+  return l;
+}
+
+static const char *searchpath (lua_State *L, const char *name,
+			       const char *path, const char *sep,
+			       const char *dirsep)
+{
+  luaL_Buffer msg;  /* to build error message */
+  luaL_buffinit(L, &msg);
+  if (*sep != '\0')  /* non-empty separator? */
+    name = luaL_gsub(L, name, sep, dirsep);  /* replace it by 'dirsep' */
+  while ((path = pushnexttemplate(L, path)) != NULL) {
+    const char *filename = luaL_gsub(L, lua_tostring(L, -1),
+				     LUA_PATH_MARK, name);
+    lua_remove(L, -2);  /* remove path template */
+    if (readable(filename))  /* does file exist and is readable? */
+      return filename;  /* return that file name */
+    lua_pushfstring(L, "\n\tno file " LUA_QS, filename);
+    lua_remove(L, -2);  /* remove file name */
+    luaL_addvalue(&msg);  /* concatenate error msg. entry */
+  }
+  luaL_pushresult(&msg);  /* create error message */
+  return NULL;  /* not found */
+}
+
+static int lj_cf_package_searchpath(lua_State *L)
+{
+  const char *f = searchpath(L, luaL_checkstring(L, 1),
+				luaL_checkstring(L, 2),
+				luaL_optstring(L, 3, "."),
+				luaL_optstring(L, 4, LUA_DIRSEP));
+  if (f != NULL) {
+    return 1;
+  } else {  /* error message is on top of the stack */
+    lua_pushnil(L);
+    lua_insert(L, -2);
+    return 2;  /* return nil + error message */
+  }
+}
+
+static const char *findfile(lua_State *L, const char *name,
+			    const char *pname)
+{
+  const char *path;
+  lua_getfield(L, LUA_ENVIRONINDEX, pname);
+  path = lua_tostring(L, -1);
+  if (path == NULL)
+    luaL_error(L, LUA_QL("package.%s") " must be a string", pname);
+  return searchpath(L, name, path, ".", LUA_DIRSEP);
+}
+
+static void loaderror(lua_State *L, const char *filename)
+{
+  luaL_error(L, "error loading module " LUA_QS " from file " LUA_QS ":\n\t%s",
+	     lua_tostring(L, 1), filename, lua_tostring(L, -1));
+}
+
+static int lj_cf_package_loader_lua(lua_State *L)
+{
+  const char *filename;
+  const char *name = luaL_checkstring(L, 1);
+  filename = findfile(L, name, "path");
+  if (filename == NULL) return 1;  /* library not found in this path */
+  if (luaL_loadfile(L, filename) != 0)
+    loaderror(L, filename);
+  return 1;  /* library loaded successfully */
+}
+
+static int lj_cf_package_loader_c(lua_State *L)
+{
+  const char *name = luaL_checkstring(L, 1);
+  const char *filename = findfile(L, name, "cpath");
+  if (filename == NULL) return 1;  /* library not found in this path */
+  if (ll_loadfunc(L, filename, name, 0) != 0)
+    loaderror(L, filename);
+  return 1;  /* library loaded successfully */
+}
+
+static int lj_cf_package_loader_croot(lua_State *L)
+{
+  const char *filename;
+  const char *name = luaL_checkstring(L, 1);
+  const char *p = strchr(name, '.');
+  int st;
+  if (p == NULL) return 0;  /* is root */
+  lua_pushlstring(L, name, (size_t)(p - name));
+  filename = findfile(L, lua_tostring(L, -1), "cpath");
+  if (filename == NULL) return 1;  /* root not found */
+  if ((st = ll_loadfunc(L, filename, name, 0)) != 0) {
+    if (st != PACKAGE_ERR_FUNC) loaderror(L, filename);  /* real error */
+    lua_pushfstring(L, "\n\tno module " LUA_QS " in file " LUA_QS,
+		    name, filename);
+    return 1;  /* function not found */
+  }
+  return 1;
+}
+
+static int lj_cf_package_loader_preload(lua_State *L)
+{
+  const char *name = luaL_checkstring(L, 1);
+  lua_getfield(L, LUA_ENVIRONINDEX, "preload");
+  if (!lua_istable(L, -1))
+    luaL_error(L, LUA_QL("package.preload") " must be a table");
+  lua_getfield(L, -1, name);
+  if (lua_isnil(L, -1)) {  /* Not found? */
+    const char *bcname = mksymname(L, name, SYMPREFIX_BC);
+    const char *bcdata = ll_bcsym(NULL, bcname);
+    if (bcdata == NULL || luaL_loadbuffer(L, bcdata, ~(size_t)0, name) != 0)
+      lua_pushfstring(L, "\n\tno field package.preload['%s']", name);
+  }
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#define KEY_SENTINEL	(U64x(80000000,00000000)|'s')
+
+static int lj_cf_package_require(lua_State *L)
+{
+  const char *name = luaL_checkstring(L, 1);
+  int i;
+  lua_settop(L, 1);  /* _LOADED table will be at index 2 */
+  lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
+  lua_getfield(L, 2, name);
+  if (lua_toboolean(L, -1)) {  /* is it there? */
+    if ((L->top-1)->u64 == KEY_SENTINEL)  /* check loops */
+      luaL_error(L, "loop or previous error loading module " LUA_QS, name);
+    return 1;  /* package is already loaded */
+  }
+  /* else must load it; iterate over available loaders */
+  lua_getfield(L, LUA_ENVIRONINDEX, "loaders");
+  if (!lua_istable(L, -1))
+    luaL_error(L, LUA_QL("package.loaders") " must be a table");
+  lua_pushliteral(L, "");  /* error message accumulator */
+  for (i = 1; ; i++) {
+    lua_rawgeti(L, -2, i);  /* get a loader */
+    if (lua_isnil(L, -1))
+      luaL_error(L, "module " LUA_QS " not found:%s",
+		 name, lua_tostring(L, -2));
+    lua_pushstring(L, name);
+    lua_call(L, 1, 1);  /* call it */
+    if (lua_isfunction(L, -1))  /* did it find module? */
+      break;  /* module loaded successfully */
+    else if (lua_isstring(L, -1))  /* loader returned error message? */
+      lua_concat(L, 2);  /* accumulate it */
+    else
+      lua_pop(L, 1);
+  }
+  (L->top++)->u64 = KEY_SENTINEL;
+  lua_setfield(L, 2, name);  /* _LOADED[name] = sentinel */
+  lua_pushstring(L, name);  /* pass name as argument to module */
+  lua_call(L, 1, 1);  /* run loaded module */
+  if (!lua_isnil(L, -1))  /* non-nil return? */
+    lua_setfield(L, 2, name);  /* _LOADED[name] = returned value */
+  lua_getfield(L, 2, name);
+  if ((L->top-1)->u64 == KEY_SENTINEL) {   /* module did not set a value? */
+    lua_pushboolean(L, 1);  /* use true as result */
+    lua_pushvalue(L, -1);  /* extra copy to be returned */
+    lua_setfield(L, 2, name);  /* _LOADED[name] = true */
+  }
+  lj_lib_checkfpu(L);
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static void setfenv(lua_State *L)
+{
+  lua_Debug ar;
+  if (lua_getstack(L, 1, &ar) == 0 ||
+      lua_getinfo(L, "f", &ar) == 0 ||  /* get calling function */
+      lua_iscfunction(L, -1))
+    luaL_error(L, LUA_QL("module") " not called from a Lua function");
+  lua_pushvalue(L, -2);
+  lua_setfenv(L, -2);
+  lua_pop(L, 1);
+}
+
+static void dooptions(lua_State *L, int n)
+{
+  int i;
+  for (i = 2; i <= n; i++) {
+    lua_pushvalue(L, i);  /* get option (a function) */
+    lua_pushvalue(L, -2);  /* module */
+    lua_call(L, 1, 0);
+  }
+}
+
+static void modinit(lua_State *L, const char *modname)
+{
+  const char *dot;
+  lua_pushvalue(L, -1);
+  lua_setfield(L, -2, "_M");  /* module._M = module */
+  lua_pushstring(L, modname);
+  lua_setfield(L, -2, "_NAME");
+  dot = strrchr(modname, '.');  /* look for last dot in module name */
+  if (dot == NULL) dot = modname; else dot++;
+  /* set _PACKAGE as package name (full module name minus last part) */
+  lua_pushlstring(L, modname, (size_t)(dot - modname));
+  lua_setfield(L, -2, "_PACKAGE");
+}
+
+static int lj_cf_package_module(lua_State *L)
+{
+  const char *modname = luaL_checkstring(L, 1);
+  int lastarg = (int)(L->top - L->base);
+  luaL_pushmodule(L, modname, 1);
+  lua_getfield(L, -1, "_NAME");
+  if (!lua_isnil(L, -1)) {  /* Module already initialized? */
+    lua_pop(L, 1);
+  } else {
+    lua_pop(L, 1);
+    modinit(L, modname);
+  }
+  lua_pushvalue(L, -1);
+  setfenv(L);
+  dooptions(L, lastarg);
+  return LJ_52;
+}
+
+static int lj_cf_package_seeall(lua_State *L)
+{
+  luaL_checktype(L, 1, LUA_TTABLE);
+  if (!lua_getmetatable(L, 1)) {
+    lua_createtable(L, 0, 1); /* create new metatable */
+    lua_pushvalue(L, -1);
+    lua_setmetatable(L, 1);
+  }
+  lua_pushvalue(L, LUA_GLOBALSINDEX);
+  lua_setfield(L, -2, "__index");  /* mt.__index = _G */
+  return 0;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#define AUXMARK		"\1"
+
+static void setpath(lua_State *L, const char *fieldname, const char *envname,
+		    const char *def, int noenv)
+{
+#if LJ_TARGET_CONSOLE
+  const char *path = NULL;
+  UNUSED(envname);
+#else
+  const char *path = getenv(envname);
+#endif
+  if (path == NULL || noenv) {
+    lua_pushstring(L, def);
+  } else {
+    path = luaL_gsub(L, path, LUA_PATHSEP LUA_PATHSEP,
+			      LUA_PATHSEP AUXMARK LUA_PATHSEP);
+    luaL_gsub(L, path, AUXMARK, def);
+    lua_remove(L, -2);
+  }
+  setprogdir(L);
+  lua_setfield(L, -2, fieldname);
+}
+
+static const luaL_Reg package_lib[] = {
+  { "loadlib",	lj_cf_package_loadlib },
+  { "searchpath",  lj_cf_package_searchpath },
+  { "seeall",	lj_cf_package_seeall },
+  { NULL, NULL }
+};
+
+static const luaL_Reg package_global[] = {
+  { "module",	lj_cf_package_module },
+  { "require",	lj_cf_package_require },
+  { NULL, NULL }
+};
+
+static const lua_CFunction package_loaders[] =
+{
+  lj_cf_package_loader_preload,
+  lj_cf_package_loader_lua,
+  lj_cf_package_loader_c,
+  lj_cf_package_loader_croot,
+  NULL
+};
+
+LUALIB_API int luaopen_package(lua_State *L)
+{
+  int i;
+  int noenv;
+  luaL_newmetatable(L, "_LOADLIB");
+  lj_lib_pushcf(L, lj_cf_package_unloadlib, 1);
+  lua_setfield(L, -2, "__gc");
+  luaL_register(L, LUA_LOADLIBNAME, package_lib);
+  lua_copy(L, -1, LUA_ENVIRONINDEX);
+  lua_createtable(L, sizeof(package_loaders)/sizeof(package_loaders[0])-1, 0);
+  for (i = 0; package_loaders[i] != NULL; i++) {
+    lj_lib_pushcf(L, package_loaders[i], 1);
+    lua_rawseti(L, -2, i+1);
+  }
+#if LJ_52
+  lua_pushvalue(L, -1);
+  lua_setfield(L, -3, "searchers");
+#endif
+  lua_setfield(L, -2, "loaders");
+  lua_getfield(L, LUA_REGISTRYINDEX, "LUA_NOENV");
+  noenv = lua_toboolean(L, -1);
+  lua_pop(L, 1);
+  setpath(L, "path", LUA_PATH, LUA_PATH_DEFAULT, noenv);
+  setpath(L, "cpath", LUA_CPATH, LUA_CPATH_DEFAULT, noenv);
+  lua_pushliteral(L, LUA_PATH_CONFIG);
+  lua_setfield(L, -2, "config");
+  luaL_findtable(L, LUA_REGISTRYINDEX, "_LOADED", 16);
+  lua_setfield(L, -2, "loaded");
+  luaL_findtable(L, LUA_REGISTRYINDEX, "_PRELOAD", 4);
+  lua_setfield(L, -2, "preload");
+  lua_pushvalue(L, LUA_GLOBALSINDEX);
+  luaL_register(L, NULL, package_global);
+  lua_pop(L, 1);
+  return 1;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lib_string.c b/libs/luajit-cmake/luajit/src/lib_string.c
new file mode 100644
index 0000000..79aeddf
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lib_string.c
@@ -0,0 +1,676 @@
+/*
+** String library.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lib_string_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_meta.h"
+#include "lj_state.h"
+#include "lj_ff.h"
+#include "lj_bcdump.h"
+#include "lj_char.h"
+#include "lj_strfmt.h"
+#include "lj_lib.h"
+
+/* ------------------------------------------------------------------------ */
+
+#define LJLIB_MODULE_string
+
+LJLIB_LUA(string_len) /*
+  function(s)
+    CHECK_str(s)
+    return #s
+  end
+*/
+
+LJLIB_ASM(string_byte)		LJLIB_REC(string_range 0)
+{
+  GCstr *s = lj_lib_checkstr(L, 1);
+  int32_t len = (int32_t)s->len;
+  int32_t start = lj_lib_optint(L, 2, 1);
+  int32_t stop = lj_lib_optint(L, 3, start);
+  int32_t n, i;
+  const unsigned char *p;
+  if (stop < 0) stop += len+1;
+  if (start < 0) start += len+1;
+  if (start <= 0) start = 1;
+  if (stop > len) stop = len;
+  if (start > stop) return FFH_RES(0);  /* Empty interval: return no results. */
+  start--;
+  n = stop - start;
+  if ((uint32_t)n > LUAI_MAXCSTACK)
+    lj_err_caller(L, LJ_ERR_STRSLC);
+  lj_state_checkstack(L, (MSize)n);
+  p = (const unsigned char *)strdata(s) + start;
+  for (i = 0; i < n; i++)
+    setintV(L->base + i-1-LJ_FR2, p[i]);
+  return FFH_RES(n);
+}
+
+LJLIB_ASM(string_char)		LJLIB_REC(.)
+{
+  int i, nargs = (int)(L->top - L->base);
+  char *buf = lj_buf_tmp(L, (MSize)nargs);
+  for (i = 1; i <= nargs; i++) {
+    int32_t k = lj_lib_checkint(L, i);
+    if (!checku8(k))
+      lj_err_arg(L, i, LJ_ERR_BADVAL);
+    buf[i-1] = (char)k;
+  }
+  setstrV(L, L->base-1-LJ_FR2, lj_str_new(L, buf, (size_t)nargs));
+  return FFH_RES(1);
+}
+
+LJLIB_ASM(string_sub)		LJLIB_REC(string_range 1)
+{
+  lj_lib_checkstr(L, 1);
+  lj_lib_checkint(L, 2);
+  setintV(L->base+2, lj_lib_optint(L, 3, -1));
+  return FFH_RETRY;
+}
+
+LJLIB_CF(string_rep)		LJLIB_REC(.)
+{
+  GCstr *s = lj_lib_checkstr(L, 1);
+  int32_t rep = lj_lib_checkint(L, 2);
+  GCstr *sep = lj_lib_optstr(L, 3);
+  SBuf *sb = lj_buf_tmp_(L);
+  if (sep && rep > 1) {
+    GCstr *s2 = lj_buf_cat2str(L, sep, s);
+    lj_buf_reset(sb);
+    lj_buf_putstr(sb, s);
+    s = s2;
+    rep--;
+  }
+  sb = lj_buf_putstr_rep(sb, s, rep);
+  setstrV(L, L->top-1, lj_buf_str(L, sb));
+  lj_gc_check(L);
+  return 1;
+}
+
+LJLIB_ASM(string_reverse)  LJLIB_REC(string_op IRCALL_lj_buf_putstr_reverse)
+{
+  lj_lib_checkstr(L, 1);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(string_lower)  LJLIB_REC(string_op IRCALL_lj_buf_putstr_lower)
+LJLIB_ASM_(string_upper)  LJLIB_REC(string_op IRCALL_lj_buf_putstr_upper)
+
+/* ------------------------------------------------------------------------ */
+
+static int writer_buf(lua_State *L, const void *p, size_t size, void *sb)
+{
+  lj_buf_putmem((SBuf *)sb, p, (MSize)size);
+  UNUSED(L);
+  return 0;
+}
+
+LJLIB_CF(string_dump)
+{
+  GCfunc *fn = lj_lib_checkfunc(L, 1);
+  int strip = L->base+1 < L->top && tvistruecond(L->base+1);
+  SBuf *sb = lj_buf_tmp_(L);  /* Assumes lj_bcwrite() doesn't use tmpbuf. */
+  L->top = L->base+1;
+  if (!isluafunc(fn) || lj_bcwrite(L, funcproto(fn), writer_buf, sb, strip))
+    lj_err_caller(L, LJ_ERR_STRDUMP);
+  setstrV(L, L->top-1, lj_buf_str(L, sb));
+  lj_gc_check(L);
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+/* macro to `unsign' a character */
+#define uchar(c)	((unsigned char)(c))
+
+#define CAP_UNFINISHED	(-1)
+#define CAP_POSITION	(-2)
+
+typedef struct MatchState {
+  const char *src_init;  /* init of source string */
+  const char *src_end;  /* end (`\0') of source string */
+  lua_State *L;
+  int level;  /* total number of captures (finished or unfinished) */
+  int depth;
+  struct {
+    const char *init;
+    ptrdiff_t len;
+  } capture[LUA_MAXCAPTURES];
+} MatchState;
+
+#define L_ESC		'%'
+
+static int check_capture(MatchState *ms, int l)
+{
+  l -= '1';
+  if (l < 0 || l >= ms->level || ms->capture[l].len == CAP_UNFINISHED)
+    lj_err_caller(ms->L, LJ_ERR_STRCAPI);
+  return l;
+}
+
+static int capture_to_close(MatchState *ms)
+{
+  int level = ms->level;
+  for (level--; level>=0; level--)
+    if (ms->capture[level].len == CAP_UNFINISHED) return level;
+  lj_err_caller(ms->L, LJ_ERR_STRPATC);
+  return 0;  /* unreachable */
+}
+
+static const char *classend(MatchState *ms, const char *p)
+{
+  switch (*p++) {
+  case L_ESC:
+    if (*p == '\0')
+      lj_err_caller(ms->L, LJ_ERR_STRPATE);
+    return p+1;
+  case '[':
+    if (*p == '^') p++;
+    do {  /* look for a `]' */
+      if (*p == '\0')
+	lj_err_caller(ms->L, LJ_ERR_STRPATM);
+      if (*(p++) == L_ESC && *p != '\0')
+	p++;  /* skip escapes (e.g. `%]') */
+    } while (*p != ']');
+    return p+1;
+  default:
+    return p;
+  }
+}
+
+static const unsigned char match_class_map[32] = {
+  0,LJ_CHAR_ALPHA,0,LJ_CHAR_CNTRL,LJ_CHAR_DIGIT,0,0,LJ_CHAR_GRAPH,0,0,0,0,
+  LJ_CHAR_LOWER,0,0,0,LJ_CHAR_PUNCT,0,0,LJ_CHAR_SPACE,0,
+  LJ_CHAR_UPPER,0,LJ_CHAR_ALNUM,LJ_CHAR_XDIGIT,0,0,0,0,0,0,0
+};
+
+static int match_class(int c, int cl)
+{
+  if ((cl & 0xc0) == 0x40) {
+    int t = match_class_map[(cl&0x1f)];
+    if (t) {
+      t = lj_char_isa(c, t);
+      return (cl & 0x20) ? t : !t;
+    }
+    if (cl == 'z') return c == 0;
+    if (cl == 'Z') return c != 0;
+  }
+  return (cl == c);
+}
+
+static int matchbracketclass(int c, const char *p, const char *ec)
+{
+  int sig = 1;
+  if (*(p+1) == '^') {
+    sig = 0;
+    p++;  /* skip the `^' */
+  }
+  while (++p < ec) {
+    if (*p == L_ESC) {
+      p++;
+      if (match_class(c, uchar(*p)))
+	return sig;
+    }
+    else if ((*(p+1) == '-') && (p+2 < ec)) {
+      p+=2;
+      if (uchar(*(p-2)) <= c && c <= uchar(*p))
+	return sig;
+    }
+    else if (uchar(*p) == c) return sig;
+  }
+  return !sig;
+}
+
+static int singlematch(int c, const char *p, const char *ep)
+{
+  switch (*p) {
+  case '.': return 1;  /* matches any char */
+  case L_ESC: return match_class(c, uchar(*(p+1)));
+  case '[': return matchbracketclass(c, p, ep-1);
+  default:  return (uchar(*p) == c);
+  }
+}
+
+static const char *match(MatchState *ms, const char *s, const char *p);
+
+static const char *matchbalance(MatchState *ms, const char *s, const char *p)
+{
+  if (*p == 0 || *(p+1) == 0)
+    lj_err_caller(ms->L, LJ_ERR_STRPATU);
+  if (*s != *p) {
+    return NULL;
+  } else {
+    int b = *p;
+    int e = *(p+1);
+    int cont = 1;
+    while (++s < ms->src_end) {
+      if (*s == e) {
+	if (--cont == 0) return s+1;
+      } else if (*s == b) {
+	cont++;
+      }
+    }
+  }
+  return NULL;  /* string ends out of balance */
+}
+
+static const char *max_expand(MatchState *ms, const char *s,
+			      const char *p, const char *ep)
+{
+  ptrdiff_t i = 0;  /* counts maximum expand for item */
+  while ((s+i)<ms->src_end && singlematch(uchar(*(s+i)), p, ep))
+    i++;
+  /* keeps trying to match with the maximum repetitions */
+  while (i>=0) {
+    const char *res = match(ms, (s+i), ep+1);
+    if (res) return res;
+    i--;  /* else didn't match; reduce 1 repetition to try again */
+  }
+  return NULL;
+}
+
+static const char *min_expand(MatchState *ms, const char *s,
+			      const char *p, const char *ep)
+{
+  for (;;) {
+    const char *res = match(ms, s, ep+1);
+    if (res != NULL)
+      return res;
+    else if (s<ms->src_end && singlematch(uchar(*s), p, ep))
+      s++;  /* try with one more repetition */
+    else
+      return NULL;
+  }
+}
+
+static const char *start_capture(MatchState *ms, const char *s,
+				 const char *p, int what)
+{
+  const char *res;
+  int level = ms->level;
+  if (level >= LUA_MAXCAPTURES) lj_err_caller(ms->L, LJ_ERR_STRCAPN);
+  ms->capture[level].init = s;
+  ms->capture[level].len = what;
+  ms->level = level+1;
+  if ((res=match(ms, s, p)) == NULL)  /* match failed? */
+    ms->level--;  /* undo capture */
+  return res;
+}
+
+static const char *end_capture(MatchState *ms, const char *s,
+			       const char *p)
+{
+  int l = capture_to_close(ms);
+  const char *res;
+  ms->capture[l].len = s - ms->capture[l].init;  /* close capture */
+  if ((res = match(ms, s, p)) == NULL)  /* match failed? */
+    ms->capture[l].len = CAP_UNFINISHED;  /* undo capture */
+  return res;
+}
+
+static const char *match_capture(MatchState *ms, const char *s, int l)
+{
+  size_t len;
+  l = check_capture(ms, l);
+  len = (size_t)ms->capture[l].len;
+  if ((size_t)(ms->src_end-s) >= len &&
+      memcmp(ms->capture[l].init, s, len) == 0)
+    return s+len;
+  else
+    return NULL;
+}
+
+static const char *match(MatchState *ms, const char *s, const char *p)
+{
+  if (++ms->depth > LJ_MAX_XLEVEL)
+    lj_err_caller(ms->L, LJ_ERR_STRPATX);
+  init: /* using goto's to optimize tail recursion */
+  switch (*p) {
+  case '(':  /* start capture */
+    if (*(p+1) == ')')  /* position capture? */
+      s = start_capture(ms, s, p+2, CAP_POSITION);
+    else
+      s = start_capture(ms, s, p+1, CAP_UNFINISHED);
+    break;
+  case ')':  /* end capture */
+    s = end_capture(ms, s, p+1);
+    break;
+  case L_ESC:
+    switch (*(p+1)) {
+    case 'b':  /* balanced string? */
+      s = matchbalance(ms, s, p+2);
+      if (s == NULL) break;
+      p+=4;
+      goto init;  /* else s = match(ms, s, p+4); */
+    case 'f': {  /* frontier? */
+      const char *ep; char previous;
+      p += 2;
+      if (*p != '[')
+	lj_err_caller(ms->L, LJ_ERR_STRPATB);
+      ep = classend(ms, p);  /* points to what is next */
+      previous = (s == ms->src_init) ? '\0' : *(s-1);
+      if (matchbracketclass(uchar(previous), p, ep-1) ||
+	 !matchbracketclass(uchar(*s), p, ep-1)) { s = NULL; break; }
+      p=ep;
+      goto init;  /* else s = match(ms, s, ep); */
+      }
+    default:
+      if (lj_char_isdigit(uchar(*(p+1)))) {  /* capture results (%0-%9)? */
+	s = match_capture(ms, s, uchar(*(p+1)));
+	if (s == NULL) break;
+	p+=2;
+	goto init;  /* else s = match(ms, s, p+2) */
+      }
+      goto dflt;  /* case default */
+    }
+    break;
+  case '\0':  /* end of pattern */
+    break;  /* match succeeded */
+  case '$':
+    /* is the `$' the last char in pattern? */
+    if (*(p+1) != '\0') goto dflt;
+    if (s != ms->src_end) s = NULL;  /* check end of string */
+    break;
+  default: dflt: {  /* it is a pattern item */
+    const char *ep = classend(ms, p);  /* points to what is next */
+    int m = s<ms->src_end && singlematch(uchar(*s), p, ep);
+    switch (*ep) {
+    case '?': {  /* optional */
+      const char *res;
+      if (m && ((res=match(ms, s+1, ep+1)) != NULL)) {
+	s = res;
+	break;
+      }
+      p=ep+1;
+      goto init;  /* else s = match(ms, s, ep+1); */
+      }
+    case '*':  /* 0 or more repetitions */
+      s = max_expand(ms, s, p, ep);
+      break;
+    case '+':  /* 1 or more repetitions */
+      s = (m ? max_expand(ms, s+1, p, ep) : NULL);
+      break;
+    case '-':  /* 0 or more repetitions (minimum) */
+      s = min_expand(ms, s, p, ep);
+      break;
+    default:
+      if (m) { s++; p=ep; goto init; }  /* else s = match(ms, s+1, ep); */
+      s = NULL;
+      break;
+    }
+    break;
+    }
+  }
+  ms->depth--;
+  return s;
+}
+
+static void push_onecapture(MatchState *ms, int i, const char *s, const char *e)
+{
+  if (i >= ms->level) {
+    if (i == 0)  /* ms->level == 0, too */
+      lua_pushlstring(ms->L, s, (size_t)(e - s));  /* add whole match */
+    else
+      lj_err_caller(ms->L, LJ_ERR_STRCAPI);
+  } else {
+    ptrdiff_t l = ms->capture[i].len;
+    if (l == CAP_UNFINISHED) lj_err_caller(ms->L, LJ_ERR_STRCAPU);
+    if (l == CAP_POSITION)
+      lua_pushinteger(ms->L, ms->capture[i].init - ms->src_init + 1);
+    else
+      lua_pushlstring(ms->L, ms->capture[i].init, (size_t)l);
+  }
+}
+
+static int push_captures(MatchState *ms, const char *s, const char *e)
+{
+  int i;
+  int nlevels = (ms->level == 0 && s) ? 1 : ms->level;
+  luaL_checkstack(ms->L, nlevels, "too many captures");
+  for (i = 0; i < nlevels; i++)
+    push_onecapture(ms, i, s, e);
+  return nlevels;  /* number of strings pushed */
+}
+
+static int str_find_aux(lua_State *L, int find)
+{
+  GCstr *s = lj_lib_checkstr(L, 1);
+  GCstr *p = lj_lib_checkstr(L, 2);
+  int32_t start = lj_lib_optint(L, 3, 1);
+  MSize st;
+  if (start < 0) start += (int32_t)s->len; else start--;
+  if (start < 0) start = 0;
+  st = (MSize)start;
+  if (st > s->len) {
+#if LJ_52
+    setnilV(L->top-1);
+    return 1;
+#else
+    st = s->len;
+#endif
+  }
+  if (find && ((L->base+3 < L->top && tvistruecond(L->base+3)) ||
+	       !lj_str_haspattern(p))) {  /* Search for fixed string. */
+    const char *q = lj_str_find(strdata(s)+st, strdata(p), s->len-st, p->len);
+    if (q) {
+      setintV(L->top-2, (int32_t)(q-strdata(s)) + 1);
+      setintV(L->top-1, (int32_t)(q-strdata(s)) + (int32_t)p->len);
+      return 2;
+    }
+  } else {  /* Search for pattern. */
+    MatchState ms;
+    const char *pstr = strdata(p);
+    const char *sstr = strdata(s) + st;
+    int anchor = 0;
+    if (*pstr == '^') { pstr++; anchor = 1; }
+    ms.L = L;
+    ms.src_init = strdata(s);
+    ms.src_end = strdata(s) + s->len;
+    do {  /* Loop through string and try to match the pattern. */
+      const char *q;
+      ms.level = ms.depth = 0;
+      q = match(&ms, sstr, pstr);
+      if (q) {
+	if (find) {
+	  setintV(L->top++, (int32_t)(sstr-(strdata(s)-1)));
+	  setintV(L->top++, (int32_t)(q-strdata(s)));
+	  return push_captures(&ms, NULL, NULL) + 2;
+	} else {
+	  return push_captures(&ms, sstr, q);
+	}
+      }
+    } while (sstr++ < ms.src_end && !anchor);
+  }
+  setnilV(L->top-1);  /* Not found. */
+  return 1;
+}
+
+LJLIB_CF(string_find)		LJLIB_REC(.)
+{
+  return str_find_aux(L, 1);
+}
+
+LJLIB_CF(string_match)
+{
+  return str_find_aux(L, 0);
+}
+
+LJLIB_NOREG LJLIB_CF(string_gmatch_aux)
+{
+  const char *p = strVdata(lj_lib_upvalue(L, 2));
+  GCstr *str = strV(lj_lib_upvalue(L, 1));
+  const char *s = strdata(str);
+  TValue *tvpos = lj_lib_upvalue(L, 3);
+  const char *src = s + tvpos->u32.lo;
+  MatchState ms;
+  ms.L = L;
+  ms.src_init = s;
+  ms.src_end = s + str->len;
+  for (; src <= ms.src_end; src++) {
+    const char *e;
+    ms.level = ms.depth = 0;
+    if ((e = match(&ms, src, p)) != NULL) {
+      int32_t pos = (int32_t)(e - s);
+      if (e == src) pos++;  /* Ensure progress for empty match. */
+      tvpos->u32.lo = (uint32_t)pos;
+      return push_captures(&ms, src, e);
+    }
+  }
+  return 0;  /* not found */
+}
+
+LJLIB_CF(string_gmatch)
+{
+  lj_lib_checkstr(L, 1);
+  lj_lib_checkstr(L, 2);
+  L->top = L->base+3;
+  (L->top-1)->u64 = 0;
+  lj_lib_pushcc(L, lj_cf_string_gmatch_aux, FF_string_gmatch_aux, 3);
+  return 1;
+}
+
+static void add_s(MatchState *ms, luaL_Buffer *b, const char *s, const char *e)
+{
+  size_t l, i;
+  const char *news = lua_tolstring(ms->L, 3, &l);
+  for (i = 0; i < l; i++) {
+    if (news[i] != L_ESC) {
+      luaL_addchar(b, news[i]);
+    } else {
+      i++;  /* skip ESC */
+      if (!lj_char_isdigit(uchar(news[i]))) {
+	luaL_addchar(b, news[i]);
+      } else if (news[i] == '0') {
+	luaL_addlstring(b, s, (size_t)(e - s));
+      } else {
+	push_onecapture(ms, news[i] - '1', s, e);
+	luaL_addvalue(b);  /* add capture to accumulated result */
+      }
+    }
+  }
+}
+
+static void add_value(MatchState *ms, luaL_Buffer *b,
+		      const char *s, const char *e)
+{
+  lua_State *L = ms->L;
+  switch (lua_type(L, 3)) {
+    case LUA_TNUMBER:
+    case LUA_TSTRING: {
+      add_s(ms, b, s, e);
+      return;
+    }
+    case LUA_TFUNCTION: {
+      int n;
+      lua_pushvalue(L, 3);
+      n = push_captures(ms, s, e);
+      lua_call(L, n, 1);
+      break;
+    }
+    case LUA_TTABLE: {
+      push_onecapture(ms, 0, s, e);
+      lua_gettable(L, 3);
+      break;
+    }
+  }
+  if (!lua_toboolean(L, -1)) {  /* nil or false? */
+    lua_pop(L, 1);
+    lua_pushlstring(L, s, (size_t)(e - s));  /* keep original text */
+  } else if (!lua_isstring(L, -1)) {
+    lj_err_callerv(L, LJ_ERR_STRGSRV, luaL_typename(L, -1));
+  }
+  luaL_addvalue(b);  /* add result to accumulator */
+}
+
+LJLIB_CF(string_gsub)
+{
+  size_t srcl;
+  const char *src = luaL_checklstring(L, 1, &srcl);
+  const char *p = luaL_checkstring(L, 2);
+  int  tr = lua_type(L, 3);
+  int max_s = luaL_optint(L, 4, (int)(srcl+1));
+  int anchor = (*p == '^') ? (p++, 1) : 0;
+  int n = 0;
+  MatchState ms;
+  luaL_Buffer b;
+  if (!(tr == LUA_TNUMBER || tr == LUA_TSTRING ||
+	tr == LUA_TFUNCTION || tr == LUA_TTABLE))
+    lj_err_arg(L, 3, LJ_ERR_NOSFT);
+  luaL_buffinit(L, &b);
+  ms.L = L;
+  ms.src_init = src;
+  ms.src_end = src+srcl;
+  while (n < max_s) {
+    const char *e;
+    ms.level = ms.depth = 0;
+    e = match(&ms, src, p);
+    if (e) {
+      n++;
+      add_value(&ms, &b, src, e);
+    }
+    if (e && e>src) /* non empty match? */
+      src = e;  /* skip it */
+    else if (src < ms.src_end)
+      luaL_addchar(&b, *src++);
+    else
+      break;
+    if (anchor)
+      break;
+  }
+  luaL_addlstring(&b, src, (size_t)(ms.src_end-src));
+  luaL_pushresult(&b);
+  lua_pushinteger(L, n);  /* number of substitutions */
+  return 2;
+}
+
+/* ------------------------------------------------------------------------ */
+
+LJLIB_CF(string_format)		LJLIB_REC(.)
+{
+  int retry = 0;
+  SBuf *sb;
+  do {
+    sb = lj_buf_tmp_(L);
+    retry = lj_strfmt_putarg(L, sb, 1, -retry);
+  } while (retry > 0);
+  setstrV(L, L->top-1, lj_buf_str(L, sb));
+  lj_gc_check(L);
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#include "lj_libdef.h"
+
+LUALIB_API int luaopen_string(lua_State *L)
+{
+  GCtab *mt;
+  global_State *g;
+  LJ_LIB_REG(L, LUA_STRLIBNAME, string);
+  mt = lj_tab_new(L, 0, 1);
+  /* NOBARRIER: basemt is a GC root. */
+  g = G(L);
+  setgcref(basemt_it(g, LJ_TSTR), obj2gco(mt));
+  settabV(L, lj_tab_setstr(L, mt, mmname_str(g, MM_index)), tabV(L->top-1));
+  mt->nomm = (uint8_t)(~(1u<<MM_index));
+#if LJ_HASBUFFER
+  lj_lib_prereg(L, LUA_STRLIBNAME ".buffer", luaopen_string_buffer, tabV(L->top-1));
+#endif
+  return 1;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lib_table.c b/libs/luajit-cmake/luajit/src/lib_table.c
new file mode 100644
index 0000000..a723326
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lib_table.c
@@ -0,0 +1,327 @@
+/*
+** Table library.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lib_table_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_tab.h"
+#include "lj_ff.h"
+#include "lj_lib.h"
+
+/* ------------------------------------------------------------------------ */
+
+#define LJLIB_MODULE_table
+
+LJLIB_LUA(table_foreachi) /*
+  function(t, f)
+    CHECK_tab(t)
+    CHECK_func(f)
+    for i=1,#t do
+      local r = f(i, t[i])
+      if r ~= nil then return r end
+    end
+  end
+*/
+
+LJLIB_LUA(table_foreach) /*
+  function(t, f)
+    CHECK_tab(t)
+    CHECK_func(f)
+    for k, v in PAIRS(t) do
+      local r = f(k, v)
+      if r ~= nil then return r end
+    end
+  end
+*/
+
+LJLIB_LUA(table_getn) /*
+  function(t)
+    CHECK_tab(t)
+    return #t
+  end
+*/
+
+LJLIB_CF(table_maxn)
+{
+  GCtab *t = lj_lib_checktab(L, 1);
+  TValue *array = tvref(t->array);
+  Node *node;
+  lua_Number m = 0;
+  ptrdiff_t i;
+  for (i = (ptrdiff_t)t->asize - 1; i >= 0; i--)
+    if (!tvisnil(&array[i])) {
+      m = (lua_Number)(int32_t)i;
+      break;
+    }
+  node = noderef(t->node);
+  for (i = (ptrdiff_t)t->hmask; i >= 0; i--)
+    if (!tvisnil(&node[i].val) && tvisnumber(&node[i].key)) {
+      lua_Number n = numberVnum(&node[i].key);
+      if (n > m) m = n;
+    }
+  setnumV(L->top-1, m);
+  return 1;
+}
+
+LJLIB_CF(table_insert)		LJLIB_REC(.)
+{
+  GCtab *t = lj_lib_checktab(L, 1);
+  int32_t n, i = (int32_t)lj_tab_len(t) + 1;
+  int nargs = (int)((char *)L->top - (char *)L->base);
+  if (nargs != 2*sizeof(TValue)) {
+    if (nargs != 3*sizeof(TValue))
+      lj_err_caller(L, LJ_ERR_TABINS);
+    /* NOBARRIER: This just moves existing elements around. */
+    for (n = lj_lib_checkint(L, 2); i > n; i--) {
+      /* The set may invalidate the get pointer, so need to do it first! */
+      TValue *dst = lj_tab_setint(L, t, i);
+      cTValue *src = lj_tab_getint(t, i-1);
+      if (src) {
+	copyTV(L, dst, src);
+      } else {
+	setnilV(dst);
+      }
+    }
+    i = n;
+  }
+  {
+    TValue *dst = lj_tab_setint(L, t, i);
+    copyTV(L, dst, L->top-1);  /* Set new value. */
+    lj_gc_barriert(L, t, dst);
+  }
+  return 0;
+}
+
+LJLIB_LUA(table_remove) /*
+  function(t, pos)
+    CHECK_tab(t)
+    local len = #t
+    if pos == nil then
+      if len ~= 0 then
+	local old = t[len]
+	t[len] = nil
+	return old
+      end
+    else
+      CHECK_int(pos)
+      if pos >= 1 and pos <= len then
+	local old = t[pos]
+	for i=pos+1,len do
+	  t[i-1] = t[i]
+	end
+	t[len] = nil
+	return old
+      end
+    end
+  end
+*/
+
+LJLIB_LUA(table_move) /*
+  function(a1, f, e, t, a2)
+    CHECK_tab(a1)
+    CHECK_int(f)
+    CHECK_int(e)
+    CHECK_int(t)
+    if a2 == nil then a2 = a1 end
+    CHECK_tab(a2)
+    if e >= f then
+      local d = t - f
+      if t > e or t <= f or a2 ~= a1 then
+	for i=f,e do a2[i+d] = a1[i] end
+      else
+	for i=e,f,-1 do a2[i+d] = a1[i] end
+      end
+    end
+    return a2
+  end
+*/
+
+LJLIB_CF(table_concat)		LJLIB_REC(.)
+{
+  GCtab *t = lj_lib_checktab(L, 1);
+  GCstr *sep = lj_lib_optstr(L, 2);
+  int32_t i = lj_lib_optint(L, 3, 1);
+  int32_t e = (L->base+3 < L->top && !tvisnil(L->base+3)) ?
+	      lj_lib_checkint(L, 4) : (int32_t)lj_tab_len(t);
+  SBuf *sb = lj_buf_tmp_(L);
+  SBuf *sbx = lj_buf_puttab(sb, t, sep, i, e);
+  if (LJ_UNLIKELY(!sbx)) {  /* Error: bad element type. */
+    int32_t idx = (int32_t)(intptr_t)sb->w;
+    cTValue *o = lj_tab_getint(t, idx);
+    lj_err_callerv(L, LJ_ERR_TABCAT,
+		   lj_obj_itypename[o ? itypemap(o) : ~LJ_TNIL], idx);
+  }
+  setstrV(L, L->top-1, lj_buf_str(L, sbx));
+  lj_gc_check(L);
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+static void set2(lua_State *L, int i, int j)
+{
+  lua_rawseti(L, 1, i);
+  lua_rawseti(L, 1, j);
+}
+
+static int sort_comp(lua_State *L, int a, int b)
+{
+  if (!lua_isnil(L, 2)) {  /* function? */
+    int res;
+    lua_pushvalue(L, 2);
+    lua_pushvalue(L, a-1);  /* -1 to compensate function */
+    lua_pushvalue(L, b-2);  /* -2 to compensate function and `a' */
+    lua_call(L, 2, 1);
+    res = lua_toboolean(L, -1);
+    lua_pop(L, 1);
+    return res;
+  } else {  /* a < b? */
+    return lua_lessthan(L, a, b);
+  }
+}
+
+static void auxsort(lua_State *L, int l, int u)
+{
+  while (l < u) {  /* for tail recursion */
+    int i, j;
+    /* sort elements a[l], a[(l+u)/2] and a[u] */
+    lua_rawgeti(L, 1, l);
+    lua_rawgeti(L, 1, u);
+    if (sort_comp(L, -1, -2))  /* a[u] < a[l]? */
+      set2(L, l, u);  /* swap a[l] - a[u] */
+    else
+      lua_pop(L, 2);
+    if (u-l == 1) break;  /* only 2 elements */
+    i = (l+u)/2;
+    lua_rawgeti(L, 1, i);
+    lua_rawgeti(L, 1, l);
+    if (sort_comp(L, -2, -1)) {  /* a[i]<a[l]? */
+      set2(L, i, l);
+    } else {
+      lua_pop(L, 1);  /* remove a[l] */
+      lua_rawgeti(L, 1, u);
+      if (sort_comp(L, -1, -2))  /* a[u]<a[i]? */
+	set2(L, i, u);
+      else
+	lua_pop(L, 2);
+    }
+    if (u-l == 2) break;  /* only 3 elements */
+    lua_rawgeti(L, 1, i);  /* Pivot */
+    lua_pushvalue(L, -1);
+    lua_rawgeti(L, 1, u-1);
+    set2(L, i, u-1);
+    /* a[l] <= P == a[u-1] <= a[u], only need to sort from l+1 to u-2 */
+    i = l; j = u-1;
+    for (;;) {  /* invariant: a[l..i] <= P <= a[j..u] */
+      /* repeat ++i until a[i] >= P */
+      while (lua_rawgeti(L, 1, ++i), sort_comp(L, -1, -2)) {
+	if (i>=u) lj_err_caller(L, LJ_ERR_TABSORT);
+	lua_pop(L, 1);  /* remove a[i] */
+      }
+      /* repeat --j until a[j] <= P */
+      while (lua_rawgeti(L, 1, --j), sort_comp(L, -3, -1)) {
+	if (j<=l) lj_err_caller(L, LJ_ERR_TABSORT);
+	lua_pop(L, 1);  /* remove a[j] */
+      }
+      if (j<i) {
+	lua_pop(L, 3);  /* pop pivot, a[i], a[j] */
+	break;
+      }
+      set2(L, i, j);
+    }
+    lua_rawgeti(L, 1, u-1);
+    lua_rawgeti(L, 1, i);
+    set2(L, u-1, i);  /* swap pivot (a[u-1]) with a[i] */
+    /* a[l..i-1] <= a[i] == P <= a[i+1..u] */
+    /* adjust so that smaller half is in [j..i] and larger one in [l..u] */
+    if (i-l < u-i) {
+      j=l; i=i-1; l=i+2;
+    } else {
+      j=i+1; i=u; u=j-2;
+    }
+    auxsort(L, j, i);  /* call recursively the smaller one */
+  }  /* repeat the routine for the larger one */
+}
+
+LJLIB_CF(table_sort)
+{
+  GCtab *t = lj_lib_checktab(L, 1);
+  int32_t n = (int32_t)lj_tab_len(t);
+  lua_settop(L, 2);
+  if (!tvisnil(L->base+1))
+    lj_lib_checkfunc(L, 2);
+  auxsort(L, 1, n);
+  return 0;
+}
+
+#if LJ_52
+LJLIB_PUSH("n")
+LJLIB_CF(table_pack)
+{
+  TValue *array, *base = L->base;
+  MSize i, n = (uint32_t)(L->top - base);
+  GCtab *t = lj_tab_new(L, n ? n+1 : 0, 1);
+  /* NOBARRIER: The table is new (marked white). */
+  setintV(lj_tab_setstr(L, t, strV(lj_lib_upvalue(L, 1))), (int32_t)n);
+  for (array = tvref(t->array) + 1, i = 0; i < n; i++)
+    copyTV(L, &array[i], &base[i]);
+  settabV(L, base, t);
+  L->top = base+1;
+  lj_gc_check(L);
+  return 1;
+}
+#endif
+
+LJLIB_NOREG LJLIB_CF(table_new)		LJLIB_REC(.)
+{
+  int32_t a = lj_lib_checkint(L, 1);
+  int32_t h = lj_lib_checkint(L, 2);
+  lua_createtable(L, a, h);
+  return 1;
+}
+
+LJLIB_NOREG LJLIB_CF(table_clear)	LJLIB_REC(.)
+{
+  lj_tab_clear(lj_lib_checktab(L, 1));
+  return 0;
+}
+
+static int luaopen_table_new(lua_State *L)
+{
+  return lj_lib_postreg(L, lj_cf_table_new, FF_table_new, "new");
+}
+
+static int luaopen_table_clear(lua_State *L)
+{
+  return lj_lib_postreg(L, lj_cf_table_clear, FF_table_clear, "clear");
+}
+
+/* ------------------------------------------------------------------------ */
+
+#include "lj_libdef.h"
+
+LUALIB_API int luaopen_table(lua_State *L)
+{
+  LJ_LIB_REG(L, LUA_TABLIBNAME, table);
+#if LJ_52
+  lua_getglobal(L, "unpack");
+  lua_setfield(L, -2, "unpack");
+#endif
+  lj_lib_prereg(L, LUA_TABLIBNAME ".new", luaopen_table_new, tabV(L->top-1));
+  lj_lib_prereg(L, LUA_TABLIBNAME ".clear", luaopen_table_clear, tabV(L->top-1));
+  return 1;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_alloc.c b/libs/luajit-cmake/luajit/src/lj_alloc.c
new file mode 100644
index 0000000..20e6049
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_alloc.c
@@ -0,0 +1,1485 @@
+/*
+** Bundled memory allocator.
+**
+** Beware: this is a HEAVILY CUSTOMIZED version of dlmalloc.
+** The original bears the following remark:
+**
+**   This is a version (aka dlmalloc) of malloc/free/realloc written by
+**   Doug Lea and released to the public domain, as explained at
+**   https://creativecommons.org/licenses/publicdomain.
+**
+**   * Version pre-2.8.4 Wed Mar 29 19:46:29 2006    (dl at gee)
+**
+** No additional copyright is claimed over the customizations.
+** Please do NOT bother the original author about this version here!
+**
+** If you want to use dlmalloc in another project, you should get
+** the original from: ftp://gee.cs.oswego.edu/pub/misc/
+** For thread-safe derivatives, take a look at:
+** - ptmalloc: https://www.malloc.de/
+** - nedmalloc: https://www.nedprod.com/programs/portable/nedmalloc/
+*/
+
+#define lj_alloc_c
+#define LUA_CORE
+
+/* To get the mremap prototype. Must be defined before any system includes. */
+#if defined(__linux__) && !defined(_GNU_SOURCE)
+#define _GNU_SOURCE
+#endif
+
+#include "lj_def.h"
+#include "lj_arch.h"
+#include "lj_alloc.h"
+#include "lj_prng.h"
+
+#ifndef LUAJIT_USE_SYSMALLOC
+
+#define MAX_SIZE_T		(~(size_t)0)
+#define MALLOC_ALIGNMENT	((size_t)8U)
+
+#define DEFAULT_GRANULARITY	((size_t)128U * (size_t)1024U)
+#define DEFAULT_TRIM_THRESHOLD	((size_t)2U * (size_t)1024U * (size_t)1024U)
+#define DEFAULT_MMAP_THRESHOLD	((size_t)128U * (size_t)1024U)
+#define MAX_RELEASE_CHECK_RATE	255
+
+/* ------------------- size_t and alignment properties -------------------- */
+
+/* The byte and bit size of a size_t */
+#define SIZE_T_SIZE		(sizeof(size_t))
+#define SIZE_T_BITSIZE		(sizeof(size_t) << 3)
+
+/* Some constants coerced to size_t */
+/* Annoying but necessary to avoid errors on some platforms */
+#define SIZE_T_ZERO		((size_t)0)
+#define SIZE_T_ONE		((size_t)1)
+#define SIZE_T_TWO		((size_t)2)
+#define TWO_SIZE_T_SIZES	(SIZE_T_SIZE<<1)
+#define FOUR_SIZE_T_SIZES	(SIZE_T_SIZE<<2)
+#define SIX_SIZE_T_SIZES	(FOUR_SIZE_T_SIZES+TWO_SIZE_T_SIZES)
+
+/* The bit mask value corresponding to MALLOC_ALIGNMENT */
+#define CHUNK_ALIGN_MASK	(MALLOC_ALIGNMENT - SIZE_T_ONE)
+
+/* the number of bytes to offset an address to align it */
+#define align_offset(A)\
+ ((((size_t)(A) & CHUNK_ALIGN_MASK) == 0)? 0 :\
+  ((MALLOC_ALIGNMENT - ((size_t)(A) & CHUNK_ALIGN_MASK)) & CHUNK_ALIGN_MASK))
+
+/* -------------------------- MMAP support ------------------------------- */
+
+#define MFAIL			((void *)(MAX_SIZE_T))
+#define CMFAIL			((char *)(MFAIL)) /* defined for convenience */
+
+#define IS_DIRECT_BIT		(SIZE_T_ONE)
+
+
+/* Determine system-specific block allocation method. */
+#if LJ_TARGET_WINDOWS
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#define LJ_ALLOC_VIRTUALALLOC	1
+
+#if LJ_64 && !LJ_GC64
+#define LJ_ALLOC_NTAVM		1
+#endif
+
+#else
+
+#include <errno.h>
+/* If this include fails, then rebuild with: -DLUAJIT_USE_SYSMALLOC */
+#include <sys/mman.h>
+
+#define LJ_ALLOC_MMAP		1
+
+#if LJ_64
+
+#define LJ_ALLOC_MMAP_PROBE	1
+
+#if LJ_GC64
+#define LJ_ALLOC_MBITS		47	/* 128 TB in LJ_GC64 mode. */
+#elif LJ_TARGET_X64 && LJ_HASJIT
+/* Due to limitations in the x64 compiler backend. */
+#define LJ_ALLOC_MBITS		31	/* 2 GB on x64 with !LJ_GC64. */
+#else
+#define LJ_ALLOC_MBITS		32	/* 4 GB on other archs with !LJ_GC64. */
+#endif
+
+#endif
+
+#if LJ_64 && !LJ_GC64 && defined(MAP_32BIT)
+#define LJ_ALLOC_MMAP32		1
+#endif
+
+#if LJ_TARGET_LINUX
+#define LJ_ALLOC_MREMAP		1
+#endif
+
+#endif
+
+
+#if LJ_ALLOC_VIRTUALALLOC
+
+#if LJ_ALLOC_NTAVM
+/* Undocumented, but hey, that's what we all love so much about Windows. */
+typedef long (*PNTAVM)(HANDLE handle, void **addr, ULONG_PTR zbits,
+		       size_t *size, ULONG alloctype, ULONG prot);
+static PNTAVM ntavm;
+
+/* Number of top bits of the lower 32 bits of an address that must be zero.
+** Apparently 0 gives us full 64 bit addresses and 1 gives us the lower 2GB.
+*/
+#define NTAVM_ZEROBITS		1
+
+static void init_mmap(void)
+{
+  ntavm = (PNTAVM)GetProcAddress(GetModuleHandleA("ntdll.dll"),
+				 "NtAllocateVirtualMemory");
+}
+#define INIT_MMAP()	init_mmap()
+
+/* Win64 32 bit MMAP via NtAllocateVirtualMemory. */
+static void *mmap_plain(size_t size)
+{
+  DWORD olderr = GetLastError();
+  void *ptr = NULL;
+  long st = ntavm(INVALID_HANDLE_VALUE, &ptr, NTAVM_ZEROBITS, &size,
+		  MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE);
+  SetLastError(olderr);
+  return st == 0 ? ptr : MFAIL;
+}
+
+/* For direct MMAP, use MEM_TOP_DOWN to minimize interference */
+static void *direct_mmap(size_t size)
+{
+  DWORD olderr = GetLastError();
+  void *ptr = NULL;
+  long st = ntavm(INVALID_HANDLE_VALUE, &ptr, NTAVM_ZEROBITS, &size,
+		  MEM_RESERVE|MEM_COMMIT|MEM_TOP_DOWN, PAGE_READWRITE);
+  SetLastError(olderr);
+  return st == 0 ? ptr : MFAIL;
+}
+
+#else
+
+/* Win32 MMAP via VirtualAlloc */
+static void *mmap_plain(size_t size)
+{
+  DWORD olderr = GetLastError();
+  void *ptr = LJ_WIN_VALLOC(0, size, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE);
+  SetLastError(olderr);
+  return ptr ? ptr : MFAIL;
+}
+
+/* For direct MMAP, use MEM_TOP_DOWN to minimize interference */
+static void *direct_mmap(size_t size)
+{
+  DWORD olderr = GetLastError();
+  void *ptr = LJ_WIN_VALLOC(0, size, MEM_RESERVE|MEM_COMMIT|MEM_TOP_DOWN,
+			    PAGE_READWRITE);
+  SetLastError(olderr);
+  return ptr ? ptr : MFAIL;
+}
+
+#endif
+
+#define CALL_MMAP(prng, size)	mmap_plain(size)
+#define DIRECT_MMAP(prng, size)	direct_mmap(size)
+
+/* This function supports releasing coalesed segments */
+static int CALL_MUNMAP(void *ptr, size_t size)
+{
+  DWORD olderr = GetLastError();
+  MEMORY_BASIC_INFORMATION minfo;
+  char *cptr = (char *)ptr;
+  while (size) {
+    if (VirtualQuery(cptr, &minfo, sizeof(minfo)) == 0)
+      return -1;
+    if (minfo.BaseAddress != cptr || minfo.AllocationBase != cptr ||
+	minfo.State != MEM_COMMIT || minfo.RegionSize > size)
+      return -1;
+    if (VirtualFree(cptr, 0, MEM_RELEASE) == 0)
+      return -1;
+    cptr += minfo.RegionSize;
+    size -= minfo.RegionSize;
+  }
+  SetLastError(olderr);
+  return 0;
+}
+
+#elif LJ_ALLOC_MMAP
+
+#define MMAP_PROT		(PROT_READ|PROT_WRITE)
+#if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
+#define MAP_ANONYMOUS		MAP_ANON
+#endif
+#define MMAP_FLAGS		(MAP_PRIVATE|MAP_ANONYMOUS)
+
+#if LJ_ALLOC_MMAP_PROBE
+
+#ifdef MAP_TRYFIXED
+#define MMAP_FLAGS_PROBE	(MMAP_FLAGS|MAP_TRYFIXED)
+#else
+#define MMAP_FLAGS_PROBE	MMAP_FLAGS
+#endif
+
+#define LJ_ALLOC_MMAP_PROBE_MAX		30
+#define LJ_ALLOC_MMAP_PROBE_LINEAR	5
+
+#define LJ_ALLOC_MMAP_PROBE_LOWER	((uintptr_t)0x4000)
+
+static void *mmap_probe(PRNGState *rs, size_t size)
+{
+  /* Hint for next allocation. Doesn't need to be thread-safe. */
+  static uintptr_t hint_addr = 0;
+  int olderr = errno;
+  int retry;
+  for (retry = 0; retry < LJ_ALLOC_MMAP_PROBE_MAX; retry++) {
+    void *p = mmap((void *)hint_addr, size, MMAP_PROT, MMAP_FLAGS_PROBE, -1, 0);
+    uintptr_t addr = (uintptr_t)p;
+    if ((addr >> LJ_ALLOC_MBITS) == 0 && addr >= LJ_ALLOC_MMAP_PROBE_LOWER &&
+	((addr + size) >> LJ_ALLOC_MBITS) == 0) {
+      /* We got a suitable address. Bump the hint address. */
+      hint_addr = addr + size;
+      errno = olderr;
+      return p;
+    }
+    if (p != MFAIL) {
+      munmap(p, size);
+    } else if (errno == ENOMEM) {
+      return MFAIL;
+    }
+    if (hint_addr) {
+      /* First, try linear probing. */
+      if (retry < LJ_ALLOC_MMAP_PROBE_LINEAR) {
+	hint_addr += 0x1000000;
+	if (((hint_addr + size) >> LJ_ALLOC_MBITS) != 0)
+	  hint_addr = 0;
+	continue;
+      } else if (retry == LJ_ALLOC_MMAP_PROBE_LINEAR) {
+	/* Next, try a no-hint probe to get back an ASLR address. */
+	hint_addr = 0;
+	continue;
+      }
+    }
+    /* Finally, try pseudo-random probing. */
+    do {
+      hint_addr = lj_prng_u64(rs) & (((uintptr_t)1<<LJ_ALLOC_MBITS)-LJ_PAGESIZE);
+    } while (hint_addr < LJ_ALLOC_MMAP_PROBE_LOWER);
+  }
+  errno = olderr;
+  return MFAIL;
+}
+
+#endif
+
+#if LJ_ALLOC_MMAP32
+
+#if LJ_TARGET_SOLARIS
+#define LJ_ALLOC_MMAP32_START	((uintptr_t)0x1000)
+#else
+#define LJ_ALLOC_MMAP32_START	((uintptr_t)0)
+#endif
+
+#if LJ_ALLOC_MMAP_PROBE
+static void *mmap_map32(PRNGState *rs, size_t size)
+#else
+static void *mmap_map32(size_t size)
+#endif
+{
+#if LJ_ALLOC_MMAP_PROBE
+  static int fallback = 0;
+  if (fallback)
+    return mmap_probe(rs, size);
+#endif
+  {
+    int olderr = errno;
+    void *ptr = mmap((void *)LJ_ALLOC_MMAP32_START, size, MMAP_PROT, MAP_32BIT|MMAP_FLAGS, -1, 0);
+    errno = olderr;
+    /* This only allows 1GB on Linux. So fallback to probing to get 2GB. */
+#if LJ_ALLOC_MMAP_PROBE
+    if (ptr == MFAIL) {
+      fallback = 1;
+      return mmap_probe(rs, size);
+    }
+#endif
+    return ptr;
+  }
+}
+
+#endif
+
+#if LJ_ALLOC_MMAP32
+#if LJ_ALLOC_MMAP_PROBE
+#define CALL_MMAP(prng, size)	mmap_map32(prng, size)
+#else
+#define CALL_MMAP(prng, size)	mmap_map32(size)
+#endif
+#elif LJ_ALLOC_MMAP_PROBE
+#define CALL_MMAP(prng, size)	mmap_probe(prng, size)
+#else
+static void *mmap_plain(size_t size)
+{
+  int olderr = errno;
+  void *ptr = mmap(NULL, size, MMAP_PROT, MMAP_FLAGS, -1, 0);
+  errno = olderr;
+  return ptr;
+}
+#define CALL_MMAP(prng, size)	mmap_plain(size)
+#endif
+
+#if LJ_64 && !LJ_GC64 && ((defined(__FreeBSD__) && __FreeBSD__ < 10) || defined(__FreeBSD_kernel__)) && !LJ_TARGET_PS4 && !LJ_TARGET_PS5
+
+#include <sys/resource.h>
+
+static void init_mmap(void)
+{
+  struct rlimit rlim;
+  rlim.rlim_cur = rlim.rlim_max = 0x10000;
+  setrlimit(RLIMIT_DATA, &rlim);  /* Ignore result. May fail later. */
+}
+#define INIT_MMAP()	init_mmap()
+
+#endif
+
+static int CALL_MUNMAP(void *ptr, size_t size)
+{
+  int olderr = errno;
+  int ret = munmap(ptr, size);
+  errno = olderr;
+  return ret;
+}
+
+#if LJ_ALLOC_MREMAP
+/* Need to define _GNU_SOURCE to get the mremap prototype. */
+static void *CALL_MREMAP_(void *ptr, size_t osz, size_t nsz, int flags)
+{
+  int olderr = errno;
+  ptr = mremap(ptr, osz, nsz, flags);
+  errno = olderr;
+  return ptr;
+}
+
+#define CALL_MREMAP(addr, osz, nsz, mv) CALL_MREMAP_((addr), (osz), (nsz), (mv))
+#define CALL_MREMAP_NOMOVE	0
+#define CALL_MREMAP_MAYMOVE	1
+#if LJ_64 && (!LJ_GC64 || LJ_TARGET_ARM64)
+#define CALL_MREMAP_MV		CALL_MREMAP_NOMOVE
+#else
+#define CALL_MREMAP_MV		CALL_MREMAP_MAYMOVE
+#endif
+#endif
+
+#endif
+
+
+#ifndef INIT_MMAP
+#define INIT_MMAP()		((void)0)
+#endif
+
+#ifndef DIRECT_MMAP
+#define DIRECT_MMAP(prng, s)	CALL_MMAP(prng, s)
+#endif
+
+#ifndef CALL_MREMAP
+#define CALL_MREMAP(addr, osz, nsz, mv) ((void)osz, MFAIL)
+#endif
+
+/* -----------------------  Chunk representations ------------------------ */
+
+struct malloc_chunk {
+  size_t               prev_foot;  /* Size of previous chunk (if free).  */
+  size_t               head;       /* Size and inuse bits. */
+  struct malloc_chunk *fd;         /* double links -- used only if free. */
+  struct malloc_chunk *bk;
+};
+
+typedef struct malloc_chunk  mchunk;
+typedef struct malloc_chunk *mchunkptr;
+typedef struct malloc_chunk *sbinptr;  /* The type of bins of chunks */
+typedef size_t bindex_t;               /* Described below */
+typedef unsigned int binmap_t;         /* Described below */
+typedef unsigned int flag_t;           /* The type of various bit flag sets */
+
+/* ------------------- Chunks sizes and alignments ----------------------- */
+
+#define MCHUNK_SIZE		(sizeof(mchunk))
+
+#define CHUNK_OVERHEAD		(SIZE_T_SIZE)
+
+/* Direct chunks need a second word of overhead ... */
+#define DIRECT_CHUNK_OVERHEAD	(TWO_SIZE_T_SIZES)
+/* ... and additional padding for fake next-chunk at foot */
+#define DIRECT_FOOT_PAD		(FOUR_SIZE_T_SIZES)
+
+/* The smallest size we can malloc is an aligned minimal chunk */
+#define MIN_CHUNK_SIZE\
+  ((MCHUNK_SIZE + CHUNK_ALIGN_MASK) & ~CHUNK_ALIGN_MASK)
+
+/* conversion from malloc headers to user pointers, and back */
+#define chunk2mem(p)		((void *)((char *)(p) + TWO_SIZE_T_SIZES))
+#define mem2chunk(mem)		((mchunkptr)((char *)(mem) - TWO_SIZE_T_SIZES))
+/* chunk associated with aligned address A */
+#define align_as_chunk(A)	(mchunkptr)((A) + align_offset(chunk2mem(A)))
+
+/* Bounds on request (not chunk) sizes. */
+#define MAX_REQUEST		((~MIN_CHUNK_SIZE+1) << 2)
+#define MIN_REQUEST		(MIN_CHUNK_SIZE - CHUNK_OVERHEAD - SIZE_T_ONE)
+
+/* pad request bytes into a usable size */
+#define pad_request(req) \
+   (((req) + CHUNK_OVERHEAD + CHUNK_ALIGN_MASK) & ~CHUNK_ALIGN_MASK)
+
+/* pad request, checking for minimum (but not maximum) */
+#define request2size(req) \
+  (((req) < MIN_REQUEST)? MIN_CHUNK_SIZE : pad_request(req))
+
+/* ------------------ Operations on head and foot fields ----------------- */
+
+#define PINUSE_BIT		(SIZE_T_ONE)
+#define CINUSE_BIT		(SIZE_T_TWO)
+#define INUSE_BITS		(PINUSE_BIT|CINUSE_BIT)
+
+/* Head value for fenceposts */
+#define FENCEPOST_HEAD		(INUSE_BITS|SIZE_T_SIZE)
+
+/* extraction of fields from head words */
+#define cinuse(p)		((p)->head & CINUSE_BIT)
+#define pinuse(p)		((p)->head & PINUSE_BIT)
+#define chunksize(p)		((p)->head & ~(INUSE_BITS))
+
+#define clear_pinuse(p)		((p)->head &= ~PINUSE_BIT)
+#define clear_cinuse(p)		((p)->head &= ~CINUSE_BIT)
+
+/* Treat space at ptr +/- offset as a chunk */
+#define chunk_plus_offset(p, s)		((mchunkptr)(((char *)(p)) + (s)))
+#define chunk_minus_offset(p, s)	((mchunkptr)(((char *)(p)) - (s)))
+
+/* Ptr to next or previous physical malloc_chunk. */
+#define next_chunk(p)	((mchunkptr)(((char *)(p)) + ((p)->head & ~INUSE_BITS)))
+#define prev_chunk(p)	((mchunkptr)(((char *)(p)) - ((p)->prev_foot) ))
+
+/* extract next chunk's pinuse bit */
+#define next_pinuse(p)	((next_chunk(p)->head) & PINUSE_BIT)
+
+/* Get/set size at footer */
+#define get_foot(p, s)	(((mchunkptr)((char *)(p) + (s)))->prev_foot)
+#define set_foot(p, s)	(((mchunkptr)((char *)(p) + (s)))->prev_foot = (s))
+
+/* Set size, pinuse bit, and foot */
+#define set_size_and_pinuse_of_free_chunk(p, s)\
+  ((p)->head = (s|PINUSE_BIT), set_foot(p, s))
+
+/* Set size, pinuse bit, foot, and clear next pinuse */
+#define set_free_with_pinuse(p, s, n)\
+  (clear_pinuse(n), set_size_and_pinuse_of_free_chunk(p, s))
+
+#define is_direct(p)\
+  (!((p)->head & PINUSE_BIT) && ((p)->prev_foot & IS_DIRECT_BIT))
+
+/* Get the internal overhead associated with chunk p */
+#define overhead_for(p)\
+ (is_direct(p)? DIRECT_CHUNK_OVERHEAD : CHUNK_OVERHEAD)
+
+/* ---------------------- Overlaid data structures ----------------------- */
+
+struct malloc_tree_chunk {
+  /* The first four fields must be compatible with malloc_chunk */
+  size_t                    prev_foot;
+  size_t                    head;
+  struct malloc_tree_chunk *fd;
+  struct malloc_tree_chunk *bk;
+
+  struct malloc_tree_chunk *child[2];
+  struct malloc_tree_chunk *parent;
+  bindex_t                  index;
+};
+
+typedef struct malloc_tree_chunk  tchunk;
+typedef struct malloc_tree_chunk *tchunkptr;
+typedef struct malloc_tree_chunk *tbinptr; /* The type of bins of trees */
+
+/* A little helper macro for trees */
+#define leftmost_child(t) ((t)->child[0] != 0? (t)->child[0] : (t)->child[1])
+
+/* ----------------------------- Segments -------------------------------- */
+
+struct malloc_segment {
+  char        *base;             /* base address */
+  size_t       size;             /* allocated size */
+  struct malloc_segment *next;   /* ptr to next segment */
+};
+
+typedef struct malloc_segment  msegment;
+typedef struct malloc_segment *msegmentptr;
+
+/* ---------------------------- malloc_state ----------------------------- */
+
+/* Bin types, widths and sizes */
+#define NSMALLBINS		(32U)
+#define NTREEBINS		(32U)
+#define SMALLBIN_SHIFT		(3U)
+#define SMALLBIN_WIDTH		(SIZE_T_ONE << SMALLBIN_SHIFT)
+#define TREEBIN_SHIFT		(8U)
+#define MIN_LARGE_SIZE		(SIZE_T_ONE << TREEBIN_SHIFT)
+#define MAX_SMALL_SIZE		(MIN_LARGE_SIZE - SIZE_T_ONE)
+#define MAX_SMALL_REQUEST  (MAX_SMALL_SIZE - CHUNK_ALIGN_MASK - CHUNK_OVERHEAD)
+
+struct malloc_state {
+  binmap_t   smallmap;
+  binmap_t   treemap;
+  size_t     dvsize;
+  size_t     topsize;
+  mchunkptr  dv;
+  mchunkptr  top;
+  size_t     trim_check;
+  size_t     release_checks;
+  mchunkptr  smallbins[(NSMALLBINS+1)*2];
+  tbinptr    treebins[NTREEBINS];
+  msegment   seg;
+  PRNGState  *prng;
+};
+
+typedef struct malloc_state *mstate;
+
+#define is_initialized(M)	((M)->top != 0)
+
+/* -------------------------- system alloc setup ------------------------- */
+
+/* page-align a size */
+#define page_align(S)\
+ (((S) + (LJ_PAGESIZE - SIZE_T_ONE)) & ~(LJ_PAGESIZE - SIZE_T_ONE))
+
+/* granularity-align a size */
+#define granularity_align(S)\
+  (((S) + (DEFAULT_GRANULARITY - SIZE_T_ONE))\
+   & ~(DEFAULT_GRANULARITY - SIZE_T_ONE))
+
+#if LJ_TARGET_WINDOWS
+#define mmap_align(S)	granularity_align(S)
+#else
+#define mmap_align(S)	page_align(S)
+#endif
+
+/*  True if segment S holds address A */
+#define segment_holds(S, A)\
+  ((char *)(A) >= S->base && (char *)(A) < S->base + S->size)
+
+/* Return segment holding given address */
+static msegmentptr segment_holding(mstate m, char *addr)
+{
+  msegmentptr sp = &m->seg;
+  for (;;) {
+    if (addr >= sp->base && addr < sp->base + sp->size)
+      return sp;
+    if ((sp = sp->next) == 0)
+      return 0;
+  }
+}
+
+/* Return true if segment contains a segment link */
+static int has_segment_link(mstate m, msegmentptr ss)
+{
+  msegmentptr sp = &m->seg;
+  for (;;) {
+    if ((char *)sp >= ss->base && (char *)sp < ss->base + ss->size)
+      return 1;
+    if ((sp = sp->next) == 0)
+      return 0;
+  }
+}
+
+/*
+  TOP_FOOT_SIZE is padding at the end of a segment, including space
+  that may be needed to place segment records and fenceposts when new
+  noncontiguous segments are added.
+*/
+#define TOP_FOOT_SIZE\
+  (align_offset(TWO_SIZE_T_SIZES)+pad_request(sizeof(struct malloc_segment))+MIN_CHUNK_SIZE)
+
+/* ---------------------------- Indexing Bins ---------------------------- */
+
+#define is_small(s)		(((s) >> SMALLBIN_SHIFT) < NSMALLBINS)
+#define small_index(s)		((s)  >> SMALLBIN_SHIFT)
+#define small_index2size(i)	((i)  << SMALLBIN_SHIFT)
+#define MIN_SMALL_INDEX		(small_index(MIN_CHUNK_SIZE))
+
+/* addressing by index. See above about smallbin repositioning */
+#define smallbin_at(M, i)	((sbinptr)((char *)&((M)->smallbins[(i)<<1])))
+#define treebin_at(M,i)		(&((M)->treebins[i]))
+
+/* assign tree index for size S to variable I */
+#define compute_tree_index(S, I)\
+{\
+  unsigned int X = (unsigned int)(S >> TREEBIN_SHIFT);\
+  if (X == 0) {\
+    I = 0;\
+  } else if (X > 0xFFFF) {\
+    I = NTREEBINS-1;\
+  } else {\
+    unsigned int K = lj_fls(X);\
+    I =  (bindex_t)((K << 1) + ((S >> (K + (TREEBIN_SHIFT-1)) & 1)));\
+  }\
+}
+
+/* Bit representing maximum resolved size in a treebin at i */
+#define bit_for_tree_index(i) \
+   (i == NTREEBINS-1)? (SIZE_T_BITSIZE-1) : (((i) >> 1) + TREEBIN_SHIFT - 2)
+
+/* Shift placing maximum resolved bit in a treebin at i as sign bit */
+#define leftshift_for_tree_index(i) \
+   ((i == NTREEBINS-1)? 0 : \
+    ((SIZE_T_BITSIZE-SIZE_T_ONE) - (((i) >> 1) + TREEBIN_SHIFT - 2)))
+
+/* The size of the smallest chunk held in bin with index i */
+#define minsize_for_tree_index(i) \
+   ((SIZE_T_ONE << (((i) >> 1) + TREEBIN_SHIFT)) |  \
+   (((size_t)((i) & SIZE_T_ONE)) << (((i) >> 1) + TREEBIN_SHIFT - 1)))
+
+/* ------------------------ Operations on bin maps ----------------------- */
+
+/* bit corresponding to given index */
+#define idx2bit(i)		((binmap_t)(1) << (i))
+
+/* Mark/Clear bits with given index */
+#define mark_smallmap(M,i)	((M)->smallmap |=  idx2bit(i))
+#define clear_smallmap(M,i)	((M)->smallmap &= ~idx2bit(i))
+#define smallmap_is_marked(M,i)	((M)->smallmap &   idx2bit(i))
+
+#define mark_treemap(M,i)	((M)->treemap  |=  idx2bit(i))
+#define clear_treemap(M,i)	((M)->treemap  &= ~idx2bit(i))
+#define treemap_is_marked(M,i)	((M)->treemap  &   idx2bit(i))
+
+/* mask with all bits to left of least bit of x on */
+#define left_bits(x)		((x<<1) | (~(x<<1)+1))
+
+/* Set cinuse bit and pinuse bit of next chunk */
+#define set_inuse(M,p,s)\
+  ((p)->head = (((p)->head & PINUSE_BIT)|s|CINUSE_BIT),\
+  ((mchunkptr)(((char *)(p)) + (s)))->head |= PINUSE_BIT)
+
+/* Set cinuse and pinuse of this chunk and pinuse of next chunk */
+#define set_inuse_and_pinuse(M,p,s)\
+  ((p)->head = (s|PINUSE_BIT|CINUSE_BIT),\
+  ((mchunkptr)(((char *)(p)) + (s)))->head |= PINUSE_BIT)
+
+/* Set size, cinuse and pinuse bit of this chunk */
+#define set_size_and_pinuse_of_inuse_chunk(M, p, s)\
+  ((p)->head = (s|PINUSE_BIT|CINUSE_BIT))
+
+/* ----------------------- Operations on smallbins ----------------------- */
+
+/* Link a free chunk into a smallbin  */
+#define insert_small_chunk(M, P, S) {\
+  bindex_t I = small_index(S);\
+  mchunkptr B = smallbin_at(M, I);\
+  mchunkptr F = B;\
+  if (!smallmap_is_marked(M, I))\
+    mark_smallmap(M, I);\
+  else\
+    F = B->fd;\
+  B->fd = P;\
+  F->bk = P;\
+  P->fd = F;\
+  P->bk = B;\
+}
+
+/* Unlink a chunk from a smallbin  */
+#define unlink_small_chunk(M, P, S) {\
+  mchunkptr F = P->fd;\
+  mchunkptr B = P->bk;\
+  bindex_t I = small_index(S);\
+  if (F == B) {\
+    clear_smallmap(M, I);\
+  } else {\
+    F->bk = B;\
+    B->fd = F;\
+  }\
+}
+
+/* Unlink the first chunk from a smallbin */
+#define unlink_first_small_chunk(M, B, P, I) {\
+  mchunkptr F = P->fd;\
+  if (B == F) {\
+    clear_smallmap(M, I);\
+  } else {\
+    B->fd = F;\
+    F->bk = B;\
+  }\
+}
+
+/* Replace dv node, binning the old one */
+/* Used only when dvsize known to be small */
+#define replace_dv(M, P, S) {\
+  size_t DVS = M->dvsize;\
+  if (DVS != 0) {\
+    mchunkptr DV = M->dv;\
+    insert_small_chunk(M, DV, DVS);\
+  }\
+  M->dvsize = S;\
+  M->dv = P;\
+}
+
+/* ------------------------- Operations on trees ------------------------- */
+
+/* Insert chunk into tree */
+#define insert_large_chunk(M, X, S) {\
+  tbinptr *H;\
+  bindex_t I;\
+  compute_tree_index(S, I);\
+  H = treebin_at(M, I);\
+  X->index = I;\
+  X->child[0] = X->child[1] = 0;\
+  if (!treemap_is_marked(M, I)) {\
+    mark_treemap(M, I);\
+    *H = X;\
+    X->parent = (tchunkptr)H;\
+    X->fd = X->bk = X;\
+  } else {\
+    tchunkptr T = *H;\
+    size_t K = S << leftshift_for_tree_index(I);\
+    for (;;) {\
+      if (chunksize(T) != S) {\
+	tchunkptr *C = &(T->child[(K >> (SIZE_T_BITSIZE-SIZE_T_ONE)) & 1]);\
+	K <<= 1;\
+	if (*C != 0) {\
+	  T = *C;\
+	} else {\
+	  *C = X;\
+	  X->parent = T;\
+	  X->fd = X->bk = X;\
+	  break;\
+	}\
+      } else {\
+	tchunkptr F = T->fd;\
+	T->fd = F->bk = X;\
+	X->fd = F;\
+	X->bk = T;\
+	X->parent = 0;\
+	break;\
+      }\
+    }\
+  }\
+}
+
+#define unlink_large_chunk(M, X) {\
+  tchunkptr XP = X->parent;\
+  tchunkptr R;\
+  if (X->bk != X) {\
+    tchunkptr F = X->fd;\
+    R = X->bk;\
+    F->bk = R;\
+    R->fd = F;\
+  } else {\
+    tchunkptr *RP;\
+    if (((R = *(RP = &(X->child[1]))) != 0) ||\
+	((R = *(RP = &(X->child[0]))) != 0)) {\
+      tchunkptr *CP;\
+      while ((*(CP = &(R->child[1])) != 0) ||\
+	     (*(CP = &(R->child[0])) != 0)) {\
+	R = *(RP = CP);\
+      }\
+      *RP = 0;\
+    }\
+  }\
+  if (XP != 0) {\
+    tbinptr *H = treebin_at(M, X->index);\
+    if (X == *H) {\
+      if ((*H = R) == 0) \
+	clear_treemap(M, X->index);\
+    } else {\
+      if (XP->child[0] == X) \
+	XP->child[0] = R;\
+      else \
+	XP->child[1] = R;\
+    }\
+    if (R != 0) {\
+      tchunkptr C0, C1;\
+      R->parent = XP;\
+      if ((C0 = X->child[0]) != 0) {\
+	R->child[0] = C0;\
+	C0->parent = R;\
+      }\
+      if ((C1 = X->child[1]) != 0) {\
+	R->child[1] = C1;\
+	C1->parent = R;\
+      }\
+    }\
+  }\
+}
+
+/* Relays to large vs small bin operations */
+
+#define insert_chunk(M, P, S)\
+  if (is_small(S)) { insert_small_chunk(M, P, S)\
+  } else { tchunkptr TP = (tchunkptr)(P); insert_large_chunk(M, TP, S); }
+
+#define unlink_chunk(M, P, S)\
+  if (is_small(S)) { unlink_small_chunk(M, P, S)\
+  } else { tchunkptr TP = (tchunkptr)(P); unlink_large_chunk(M, TP); }
+
+/* -----------------------  Direct-mmapping chunks ----------------------- */
+
+static void *direct_alloc(mstate m, size_t nb)
+{
+  size_t mmsize = mmap_align(nb + SIX_SIZE_T_SIZES + CHUNK_ALIGN_MASK);
+  if (LJ_LIKELY(mmsize > nb)) {     /* Check for wrap around 0 */
+    char *mm = (char *)(DIRECT_MMAP(m->prng, mmsize));
+    if (mm != CMFAIL) {
+      size_t offset = align_offset(chunk2mem(mm));
+      size_t psize = mmsize - offset - DIRECT_FOOT_PAD;
+      mchunkptr p = (mchunkptr)(mm + offset);
+      p->prev_foot = offset | IS_DIRECT_BIT;
+      p->head = psize|CINUSE_BIT;
+      chunk_plus_offset(p, psize)->head = FENCEPOST_HEAD;
+      chunk_plus_offset(p, psize+SIZE_T_SIZE)->head = 0;
+      return chunk2mem(p);
+    }
+  }
+  UNUSED(m);
+  return NULL;
+}
+
+static mchunkptr direct_resize(mchunkptr oldp, size_t nb)
+{
+  size_t oldsize = chunksize(oldp);
+  if (is_small(nb)) /* Can't shrink direct regions below small size */
+    return NULL;
+  /* Keep old chunk if big enough but not too big */
+  if (oldsize >= nb + SIZE_T_SIZE &&
+      (oldsize - nb) <= (DEFAULT_GRANULARITY >> 1)) {
+    return oldp;
+  } else {
+    size_t offset = oldp->prev_foot & ~IS_DIRECT_BIT;
+    size_t oldmmsize = oldsize + offset + DIRECT_FOOT_PAD;
+    size_t newmmsize = mmap_align(nb + SIX_SIZE_T_SIZES + CHUNK_ALIGN_MASK);
+    char *cp = (char *)CALL_MREMAP((char *)oldp - offset,
+				   oldmmsize, newmmsize, CALL_MREMAP_MV);
+    if (cp != CMFAIL) {
+      mchunkptr newp = (mchunkptr)(cp + offset);
+      size_t psize = newmmsize - offset - DIRECT_FOOT_PAD;
+      newp->head = psize|CINUSE_BIT;
+      chunk_plus_offset(newp, psize)->head = FENCEPOST_HEAD;
+      chunk_plus_offset(newp, psize+SIZE_T_SIZE)->head = 0;
+      return newp;
+    }
+  }
+  return NULL;
+}
+
+/* -------------------------- mspace management -------------------------- */
+
+/* Initialize top chunk and its size */
+static void init_top(mstate m, mchunkptr p, size_t psize)
+{
+  /* Ensure alignment */
+  size_t offset = align_offset(chunk2mem(p));
+  p = (mchunkptr)((char *)p + offset);
+  psize -= offset;
+
+  m->top = p;
+  m->topsize = psize;
+  p->head = psize | PINUSE_BIT;
+  /* set size of fake trailing chunk holding overhead space only once */
+  chunk_plus_offset(p, psize)->head = TOP_FOOT_SIZE;
+  m->trim_check = DEFAULT_TRIM_THRESHOLD; /* reset on each update */
+}
+
+/* Initialize bins for a new mstate that is otherwise zeroed out */
+static void init_bins(mstate m)
+{
+  /* Establish circular links for smallbins */
+  bindex_t i;
+  for (i = 0; i < NSMALLBINS; i++) {
+    sbinptr bin = smallbin_at(m,i);
+    bin->fd = bin->bk = bin;
+  }
+}
+
+/* Allocate chunk and prepend remainder with chunk in successor base. */
+static void *prepend_alloc(mstate m, char *newbase, char *oldbase, size_t nb)
+{
+  mchunkptr p = align_as_chunk(newbase);
+  mchunkptr oldfirst = align_as_chunk(oldbase);
+  size_t psize = (size_t)((char *)oldfirst - (char *)p);
+  mchunkptr q = chunk_plus_offset(p, nb);
+  size_t qsize = psize - nb;
+  set_size_and_pinuse_of_inuse_chunk(m, p, nb);
+
+  /* consolidate remainder with first chunk of old base */
+  if (oldfirst == m->top) {
+    size_t tsize = m->topsize += qsize;
+    m->top = q;
+    q->head = tsize | PINUSE_BIT;
+  } else if (oldfirst == m->dv) {
+    size_t dsize = m->dvsize += qsize;
+    m->dv = q;
+    set_size_and_pinuse_of_free_chunk(q, dsize);
+  } else {
+    if (!cinuse(oldfirst)) {
+      size_t nsize = chunksize(oldfirst);
+      unlink_chunk(m, oldfirst, nsize);
+      oldfirst = chunk_plus_offset(oldfirst, nsize);
+      qsize += nsize;
+    }
+    set_free_with_pinuse(q, qsize, oldfirst);
+    insert_chunk(m, q, qsize);
+  }
+
+  return chunk2mem(p);
+}
+
+/* Add a segment to hold a new noncontiguous region */
+static void add_segment(mstate m, char *tbase, size_t tsize)
+{
+  /* Determine locations and sizes of segment, fenceposts, old top */
+  char *old_top = (char *)m->top;
+  msegmentptr oldsp = segment_holding(m, old_top);
+  char *old_end = oldsp->base + oldsp->size;
+  size_t ssize = pad_request(sizeof(struct malloc_segment));
+  char *rawsp = old_end - (ssize + FOUR_SIZE_T_SIZES + CHUNK_ALIGN_MASK);
+  size_t offset = align_offset(chunk2mem(rawsp));
+  char *asp = rawsp + offset;
+  char *csp = (asp < (old_top + MIN_CHUNK_SIZE))? old_top : asp;
+  mchunkptr sp = (mchunkptr)csp;
+  msegmentptr ss = (msegmentptr)(chunk2mem(sp));
+  mchunkptr tnext = chunk_plus_offset(sp, ssize);
+  mchunkptr p = tnext;
+
+  /* reset top to new space */
+  init_top(m, (mchunkptr)tbase, tsize - TOP_FOOT_SIZE);
+
+  /* Set up segment record */
+  set_size_and_pinuse_of_inuse_chunk(m, sp, ssize);
+  *ss = m->seg; /* Push current record */
+  m->seg.base = tbase;
+  m->seg.size = tsize;
+  m->seg.next = ss;
+
+  /* Insert trailing fenceposts */
+  for (;;) {
+    mchunkptr nextp = chunk_plus_offset(p, SIZE_T_SIZE);
+    p->head = FENCEPOST_HEAD;
+    if ((char *)(&(nextp->head)) < old_end)
+      p = nextp;
+    else
+      break;
+  }
+
+  /* Insert the rest of old top into a bin as an ordinary free chunk */
+  if (csp != old_top) {
+    mchunkptr q = (mchunkptr)old_top;
+    size_t psize = (size_t)(csp - old_top);
+    mchunkptr tn = chunk_plus_offset(q, psize);
+    set_free_with_pinuse(q, psize, tn);
+    insert_chunk(m, q, psize);
+  }
+}
+
+/* -------------------------- System allocation -------------------------- */
+
+static void *alloc_sys(mstate m, size_t nb)
+{
+  char *tbase = CMFAIL;
+  size_t tsize = 0;
+
+  /* Directly map large chunks */
+  if (LJ_UNLIKELY(nb >= DEFAULT_MMAP_THRESHOLD)) {
+    void *mem = direct_alloc(m, nb);
+    if (mem != 0)
+      return mem;
+  }
+
+  {
+    size_t req = nb + TOP_FOOT_SIZE + SIZE_T_ONE;
+    size_t rsize = granularity_align(req);
+    if (LJ_LIKELY(rsize > nb)) { /* Fail if wraps around zero */
+      char *mp = (char *)(CALL_MMAP(m->prng, rsize));
+      if (mp != CMFAIL) {
+	tbase = mp;
+	tsize = rsize;
+      }
+    }
+  }
+
+  if (tbase != CMFAIL) {
+    msegmentptr sp = &m->seg;
+    /* Try to merge with an existing segment */
+    while (sp != 0 && tbase != sp->base + sp->size)
+      sp = sp->next;
+    if (sp != 0 && segment_holds(sp, m->top)) { /* append */
+      sp->size += tsize;
+      init_top(m, m->top, m->topsize + tsize);
+    } else {
+      sp = &m->seg;
+      while (sp != 0 && sp->base != tbase + tsize)
+	sp = sp->next;
+      if (sp != 0) {
+	char *oldbase = sp->base;
+	sp->base = tbase;
+	sp->size += tsize;
+	return prepend_alloc(m, tbase, oldbase, nb);
+      } else {
+	add_segment(m, tbase, tsize);
+      }
+    }
+
+    if (nb < m->topsize) { /* Allocate from new or extended top space */
+      size_t rsize = m->topsize -= nb;
+      mchunkptr p = m->top;
+      mchunkptr r = m->top = chunk_plus_offset(p, nb);
+      r->head = rsize | PINUSE_BIT;
+      set_size_and_pinuse_of_inuse_chunk(m, p, nb);
+      return chunk2mem(p);
+    }
+  }
+
+  return NULL;
+}
+
+/* -----------------------  system deallocation -------------------------- */
+
+/* Unmap and unlink any mmapped segments that don't contain used chunks */
+static size_t release_unused_segments(mstate m)
+{
+  size_t released = 0;
+  size_t nsegs = 0;
+  msegmentptr pred = &m->seg;
+  msegmentptr sp = pred->next;
+  while (sp != 0) {
+    char *base = sp->base;
+    size_t size = sp->size;
+    msegmentptr next = sp->next;
+    nsegs++;
+    {
+      mchunkptr p = align_as_chunk(base);
+      size_t psize = chunksize(p);
+      /* Can unmap if first chunk holds entire segment and not pinned */
+      if (!cinuse(p) && (char *)p + psize >= base + size - TOP_FOOT_SIZE) {
+	tchunkptr tp = (tchunkptr)p;
+	if (p == m->dv) {
+	  m->dv = 0;
+	  m->dvsize = 0;
+	} else {
+	  unlink_large_chunk(m, tp);
+	}
+	if (CALL_MUNMAP(base, size) == 0) {
+	  released += size;
+	  /* unlink obsoleted record */
+	  sp = pred;
+	  sp->next = next;
+	} else { /* back out if cannot unmap */
+	  insert_large_chunk(m, tp, psize);
+	}
+      }
+    }
+    pred = sp;
+    sp = next;
+  }
+  /* Reset check counter */
+  m->release_checks = nsegs > MAX_RELEASE_CHECK_RATE ?
+		      nsegs : MAX_RELEASE_CHECK_RATE;
+  return released;
+}
+
+static int alloc_trim(mstate m, size_t pad)
+{
+  size_t released = 0;
+  if (pad < MAX_REQUEST && is_initialized(m)) {
+    pad += TOP_FOOT_SIZE; /* ensure enough room for segment overhead */
+
+    if (m->topsize > pad) {
+      /* Shrink top space in granularity-size units, keeping at least one */
+      size_t unit = DEFAULT_GRANULARITY;
+      size_t extra = ((m->topsize - pad + (unit - SIZE_T_ONE)) / unit -
+		      SIZE_T_ONE) * unit;
+      msegmentptr sp = segment_holding(m, (char *)m->top);
+
+      if (sp->size >= extra &&
+	  !has_segment_link(m, sp)) { /* can't shrink if pinned */
+	size_t newsize = sp->size - extra;
+	/* Prefer mremap, fall back to munmap */
+	if ((CALL_MREMAP(sp->base, sp->size, newsize, CALL_MREMAP_NOMOVE) != MFAIL) ||
+	    (CALL_MUNMAP(sp->base + newsize, extra) == 0)) {
+	  released = extra;
+	}
+      }
+
+      if (released != 0) {
+	sp->size -= released;
+	init_top(m, m->top, m->topsize - released);
+      }
+    }
+
+    /* Unmap any unused mmapped segments */
+    released += release_unused_segments(m);
+
+    /* On failure, disable autotrim to avoid repeated failed future calls */
+    if (released == 0 && m->topsize > m->trim_check)
+      m->trim_check = MAX_SIZE_T;
+  }
+
+  return (released != 0)? 1 : 0;
+}
+
+/* ---------------------------- malloc support --------------------------- */
+
+/* allocate a large request from the best fitting chunk in a treebin */
+static void *tmalloc_large(mstate m, size_t nb)
+{
+  tchunkptr v = 0;
+  size_t rsize = ~nb+1; /* Unsigned negation */
+  tchunkptr t;
+  bindex_t idx;
+  compute_tree_index(nb, idx);
+
+  if ((t = *treebin_at(m, idx)) != 0) {
+    /* Traverse tree for this bin looking for node with size == nb */
+    size_t sizebits = nb << leftshift_for_tree_index(idx);
+    tchunkptr rst = 0;  /* The deepest untaken right subtree */
+    for (;;) {
+      tchunkptr rt;
+      size_t trem = chunksize(t) - nb;
+      if (trem < rsize) {
+	v = t;
+	if ((rsize = trem) == 0)
+	  break;
+      }
+      rt = t->child[1];
+      t = t->child[(sizebits >> (SIZE_T_BITSIZE-SIZE_T_ONE)) & 1];
+      if (rt != 0 && rt != t)
+	rst = rt;
+      if (t == 0) {
+	t = rst; /* set t to least subtree holding sizes > nb */
+	break;
+      }
+      sizebits <<= 1;
+    }
+  }
+
+  if (t == 0 && v == 0) { /* set t to root of next non-empty treebin */
+    binmap_t leftbits = left_bits(idx2bit(idx)) & m->treemap;
+    if (leftbits != 0)
+      t = *treebin_at(m, lj_ffs(leftbits));
+  }
+
+  while (t != 0) { /* find smallest of tree or subtree */
+    size_t trem = chunksize(t) - nb;
+    if (trem < rsize) {
+      rsize = trem;
+      v = t;
+    }
+    t = leftmost_child(t);
+  }
+
+  /*  If dv is a better fit, return NULL so malloc will use it */
+  if (v != 0 && rsize < (size_t)(m->dvsize - nb)) {
+    mchunkptr r = chunk_plus_offset(v, nb);
+    unlink_large_chunk(m, v);
+    if (rsize < MIN_CHUNK_SIZE) {
+      set_inuse_and_pinuse(m, v, (rsize + nb));
+    } else {
+      set_size_and_pinuse_of_inuse_chunk(m, v, nb);
+      set_size_and_pinuse_of_free_chunk(r, rsize);
+      insert_chunk(m, r, rsize);
+    }
+    return chunk2mem(v);
+  }
+  return NULL;
+}
+
+/* allocate a small request from the best fitting chunk in a treebin */
+static void *tmalloc_small(mstate m, size_t nb)
+{
+  tchunkptr t, v;
+  mchunkptr r;
+  size_t rsize;
+  bindex_t i = lj_ffs(m->treemap);
+
+  v = t = *treebin_at(m, i);
+  rsize = chunksize(t) - nb;
+
+  while ((t = leftmost_child(t)) != 0) {
+    size_t trem = chunksize(t) - nb;
+    if (trem < rsize) {
+      rsize = trem;
+      v = t;
+    }
+  }
+
+  r = chunk_plus_offset(v, nb);
+  unlink_large_chunk(m, v);
+  if (rsize < MIN_CHUNK_SIZE) {
+    set_inuse_and_pinuse(m, v, (rsize + nb));
+  } else {
+    set_size_and_pinuse_of_inuse_chunk(m, v, nb);
+    set_size_and_pinuse_of_free_chunk(r, rsize);
+    replace_dv(m, r, rsize);
+  }
+  return chunk2mem(v);
+}
+
+/* ----------------------------------------------------------------------- */
+
+void *lj_alloc_create(PRNGState *rs)
+{
+  size_t tsize = DEFAULT_GRANULARITY;
+  char *tbase;
+  INIT_MMAP();
+  UNUSED(rs);
+  tbase = (char *)(CALL_MMAP(rs, tsize));
+  if (tbase != CMFAIL) {
+    size_t msize = pad_request(sizeof(struct malloc_state));
+    mchunkptr mn;
+    mchunkptr msp = align_as_chunk(tbase);
+    mstate m = (mstate)(chunk2mem(msp));
+    memset(m, 0, msize);
+    msp->head = (msize|PINUSE_BIT|CINUSE_BIT);
+    m->seg.base = tbase;
+    m->seg.size = tsize;
+    m->release_checks = MAX_RELEASE_CHECK_RATE;
+    init_bins(m);
+    mn = next_chunk(mem2chunk(m));
+    init_top(m, mn, (size_t)((tbase + tsize) - (char *)mn) - TOP_FOOT_SIZE);
+    return m;
+  }
+  return NULL;
+}
+
+void lj_alloc_setprng(void *msp, PRNGState *rs)
+{
+  mstate ms = (mstate)msp;
+  ms->prng = rs;
+}
+
+void lj_alloc_destroy(void *msp)
+{
+  mstate ms = (mstate)msp;
+  msegmentptr sp = &ms->seg;
+  while (sp != 0) {
+    char *base = sp->base;
+    size_t size = sp->size;
+    sp = sp->next;
+    CALL_MUNMAP(base, size);
+  }
+}
+
+static LJ_NOINLINE void *lj_alloc_malloc(void *msp, size_t nsize)
+{
+  mstate ms = (mstate)msp;
+  void *mem;
+  size_t nb;
+  if (nsize <= MAX_SMALL_REQUEST) {
+    bindex_t idx;
+    binmap_t smallbits;
+    nb = (nsize < MIN_REQUEST)? MIN_CHUNK_SIZE : pad_request(nsize);
+    idx = small_index(nb);
+    smallbits = ms->smallmap >> idx;
+
+    if ((smallbits & 0x3U) != 0) { /* Remainderless fit to a smallbin. */
+      mchunkptr b, p;
+      idx += ~smallbits & 1;       /* Uses next bin if idx empty */
+      b = smallbin_at(ms, idx);
+      p = b->fd;
+      unlink_first_small_chunk(ms, b, p, idx);
+      set_inuse_and_pinuse(ms, p, small_index2size(idx));
+      mem = chunk2mem(p);
+      return mem;
+    } else if (nb > ms->dvsize) {
+      if (smallbits != 0) { /* Use chunk in next nonempty smallbin */
+	mchunkptr b, p, r;
+	size_t rsize;
+	binmap_t leftbits = (smallbits << idx) & left_bits(idx2bit(idx));
+	bindex_t i = lj_ffs(leftbits);
+	b = smallbin_at(ms, i);
+	p = b->fd;
+	unlink_first_small_chunk(ms, b, p, i);
+	rsize = small_index2size(i) - nb;
+	/* Fit here cannot be remainderless if 4byte sizes */
+	if (SIZE_T_SIZE != 4 && rsize < MIN_CHUNK_SIZE) {
+	  set_inuse_and_pinuse(ms, p, small_index2size(i));
+	} else {
+	  set_size_and_pinuse_of_inuse_chunk(ms, p, nb);
+	  r = chunk_plus_offset(p, nb);
+	  set_size_and_pinuse_of_free_chunk(r, rsize);
+	  replace_dv(ms, r, rsize);
+	}
+	mem = chunk2mem(p);
+	return mem;
+      } else if (ms->treemap != 0 && (mem = tmalloc_small(ms, nb)) != 0) {
+	return mem;
+      }
+    }
+  } else if (nsize >= MAX_REQUEST) {
+    nb = MAX_SIZE_T; /* Too big to allocate. Force failure (in sys alloc) */
+  } else {
+    nb = pad_request(nsize);
+    if (ms->treemap != 0 && (mem = tmalloc_large(ms, nb)) != 0) {
+      return mem;
+    }
+  }
+
+  if (nb <= ms->dvsize) {
+    size_t rsize = ms->dvsize - nb;
+    mchunkptr p = ms->dv;
+    if (rsize >= MIN_CHUNK_SIZE) { /* split dv */
+      mchunkptr r = ms->dv = chunk_plus_offset(p, nb);
+      ms->dvsize = rsize;
+      set_size_and_pinuse_of_free_chunk(r, rsize);
+      set_size_and_pinuse_of_inuse_chunk(ms, p, nb);
+    } else { /* exhaust dv */
+      size_t dvs = ms->dvsize;
+      ms->dvsize = 0;
+      ms->dv = 0;
+      set_inuse_and_pinuse(ms, p, dvs);
+    }
+    mem = chunk2mem(p);
+    return mem;
+  } else if (nb < ms->topsize) { /* Split top */
+    size_t rsize = ms->topsize -= nb;
+    mchunkptr p = ms->top;
+    mchunkptr r = ms->top = chunk_plus_offset(p, nb);
+    r->head = rsize | PINUSE_BIT;
+    set_size_and_pinuse_of_inuse_chunk(ms, p, nb);
+    mem = chunk2mem(p);
+    return mem;
+  }
+  return alloc_sys(ms, nb);
+}
+
+static LJ_NOINLINE void *lj_alloc_free(void *msp, void *ptr)
+{
+  if (ptr != 0) {
+    mchunkptr p = mem2chunk(ptr);
+    mstate fm = (mstate)msp;
+    size_t psize = chunksize(p);
+    mchunkptr next = chunk_plus_offset(p, psize);
+    if (!pinuse(p)) {
+      size_t prevsize = p->prev_foot;
+      if ((prevsize & IS_DIRECT_BIT) != 0) {
+	prevsize &= ~IS_DIRECT_BIT;
+	psize += prevsize + DIRECT_FOOT_PAD;
+	CALL_MUNMAP((char *)p - prevsize, psize);
+	return NULL;
+      } else {
+	mchunkptr prev = chunk_minus_offset(p, prevsize);
+	psize += prevsize;
+	p = prev;
+	/* consolidate backward */
+	if (p != fm->dv) {
+	  unlink_chunk(fm, p, prevsize);
+	} else if ((next->head & INUSE_BITS) == INUSE_BITS) {
+	  fm->dvsize = psize;
+	  set_free_with_pinuse(p, psize, next);
+	  return NULL;
+	}
+      }
+    }
+    if (!cinuse(next)) {  /* consolidate forward */
+      if (next == fm->top) {
+	size_t tsize = fm->topsize += psize;
+	fm->top = p;
+	p->head = tsize | PINUSE_BIT;
+	if (p == fm->dv) {
+	  fm->dv = 0;
+	  fm->dvsize = 0;
+	}
+	if (tsize > fm->trim_check)
+	  alloc_trim(fm, 0);
+	return NULL;
+      } else if (next == fm->dv) {
+	size_t dsize = fm->dvsize += psize;
+	fm->dv = p;
+	set_size_and_pinuse_of_free_chunk(p, dsize);
+	return NULL;
+      } else {
+	size_t nsize = chunksize(next);
+	psize += nsize;
+	unlink_chunk(fm, next, nsize);
+	set_size_and_pinuse_of_free_chunk(p, psize);
+	if (p == fm->dv) {
+	  fm->dvsize = psize;
+	  return NULL;
+	}
+      }
+    } else {
+      set_free_with_pinuse(p, psize, next);
+    }
+
+    if (is_small(psize)) {
+      insert_small_chunk(fm, p, psize);
+    } else {
+      tchunkptr tp = (tchunkptr)p;
+      insert_large_chunk(fm, tp, psize);
+      if (--fm->release_checks == 0)
+	release_unused_segments(fm);
+    }
+  }
+  return NULL;
+}
+
+static LJ_NOINLINE void *lj_alloc_realloc(void *msp, void *ptr, size_t nsize)
+{
+  if (nsize >= MAX_REQUEST) {
+    return NULL;
+  } else {
+    mstate m = (mstate)msp;
+    mchunkptr oldp = mem2chunk(ptr);
+    size_t oldsize = chunksize(oldp);
+    mchunkptr next = chunk_plus_offset(oldp, oldsize);
+    mchunkptr newp = 0;
+    size_t nb = request2size(nsize);
+
+    /* Try to either shrink or extend into top. Else malloc-copy-free */
+    if (is_direct(oldp)) {
+      newp = direct_resize(oldp, nb);  /* this may return NULL. */
+    } else if (oldsize >= nb) { /* already big enough */
+      size_t rsize = oldsize - nb;
+      newp = oldp;
+      if (rsize >= MIN_CHUNK_SIZE) {
+	mchunkptr rem = chunk_plus_offset(newp, nb);
+	set_inuse(m, newp, nb);
+	set_inuse(m, rem, rsize);
+	lj_alloc_free(m, chunk2mem(rem));
+      }
+    } else if (next == m->top && oldsize + m->topsize > nb) {
+      /* Expand into top */
+      size_t newsize = oldsize + m->topsize;
+      size_t newtopsize = newsize - nb;
+      mchunkptr newtop = chunk_plus_offset(oldp, nb);
+      set_inuse(m, oldp, nb);
+      newtop->head = newtopsize |PINUSE_BIT;
+      m->top = newtop;
+      m->topsize = newtopsize;
+      newp = oldp;
+    }
+
+    if (newp != 0) {
+      return chunk2mem(newp);
+    } else {
+      void *newmem = lj_alloc_malloc(m, nsize);
+      if (newmem != 0) {
+	size_t oc = oldsize - overhead_for(oldp);
+	memcpy(newmem, ptr, oc < nsize ? oc : nsize);
+	lj_alloc_free(m, ptr);
+      }
+      return newmem;
+    }
+  }
+}
+
+void *lj_alloc_f(void *msp, void *ptr, size_t osize, size_t nsize)
+{
+  (void)osize;
+  if (nsize == 0) {
+    return lj_alloc_free(msp, ptr);
+  } else if (ptr == NULL) {
+    return lj_alloc_malloc(msp, nsize);
+  } else {
+    return lj_alloc_realloc(msp, ptr, nsize);
+  }
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_alloc.h b/libs/luajit-cmake/luajit/src/lj_alloc.h
new file mode 100644
index 0000000..669f50b
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_alloc.h
@@ -0,0 +1,18 @@
+/*
+** Bundled memory allocator.
+** Donated to the public domain.
+*/
+
+#ifndef _LJ_ALLOC_H
+#define _LJ_ALLOC_H
+
+#include "lj_def.h"
+
+#ifndef LUAJIT_USE_SYSMALLOC
+LJ_FUNC void *lj_alloc_create(PRNGState *rs);
+LJ_FUNC void lj_alloc_setprng(void *msp, PRNGState *rs);
+LJ_FUNC void lj_alloc_destroy(void *msp);
+LJ_FUNC void *lj_alloc_f(void *msp, void *ptr, size_t osize, size_t nsize);
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_api.c b/libs/luajit-cmake/luajit/src/lj_api.c
new file mode 100644
index 0000000..e6b6747
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_api.c
@@ -0,0 +1,1313 @@
+/*
+** Public Lua/C API.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_api_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_func.h"
+#include "lj_udata.h"
+#include "lj_meta.h"
+#include "lj_state.h"
+#include "lj_bc.h"
+#include "lj_frame.h"
+#include "lj_trace.h"
+#include "lj_vm.h"
+#include "lj_strscan.h"
+#include "lj_strfmt.h"
+
+/* -- Common helper functions --------------------------------------------- */
+
+#define lj_checkapi_slot(idx) \
+  lj_checkapi((idx) <= (L->top - L->base), "stack slot %d out of range", (idx))
+
+static TValue *index2adr(lua_State *L, int idx)
+{
+  if (idx > 0) {
+    TValue *o = L->base + (idx - 1);
+    return o < L->top ? o : niltv(L);
+  } else if (idx > LUA_REGISTRYINDEX) {
+    lj_checkapi(idx != 0 && -idx <= L->top - L->base,
+		"bad stack slot %d", idx);
+    return L->top + idx;
+  } else if (idx == LUA_GLOBALSINDEX) {
+    TValue *o = &G(L)->tmptv;
+    settabV(L, o, tabref(L->env));
+    return o;
+  } else if (idx == LUA_REGISTRYINDEX) {
+    return registry(L);
+  } else {
+    GCfunc *fn = curr_func(L);
+    lj_checkapi(fn->c.gct == ~LJ_TFUNC && !isluafunc(fn),
+		"calling frame is not a C function");
+    if (idx == LUA_ENVIRONINDEX) {
+      TValue *o = &G(L)->tmptv;
+      settabV(L, o, tabref(fn->c.env));
+      return o;
+    } else {
+      idx = LUA_GLOBALSINDEX - idx;
+      return idx <= fn->c.nupvalues ? &fn->c.upvalue[idx-1] : niltv(L);
+    }
+  }
+}
+
+static LJ_AINLINE TValue *index2adr_check(lua_State *L, int idx)
+{
+  TValue *o = index2adr(L, idx);
+  lj_checkapi(o != niltv(L), "invalid stack slot %d", idx);
+  return o;
+}
+
+static TValue *index2adr_stack(lua_State *L, int idx)
+{
+  if (idx > 0) {
+    TValue *o = L->base + (idx - 1);
+    if (o < L->top) {
+      return o;
+    } else {
+      lj_checkapi(0, "invalid stack slot %d", idx);
+      return niltv(L);
+    }
+    return o < L->top ? o : niltv(L);
+  } else {
+    lj_checkapi(idx != 0 && -idx <= L->top - L->base,
+		"invalid stack slot %d", idx);
+    return L->top + idx;
+  }
+}
+
+static GCtab *getcurrenv(lua_State *L)
+{
+  GCfunc *fn = curr_func(L);
+  return fn->c.gct == ~LJ_TFUNC ? tabref(fn->c.env) : tabref(L->env);
+}
+
+/* -- Miscellaneous API functions ----------------------------------------- */
+
+LUA_API int lua_status(lua_State *L)
+{
+  return L->status;
+}
+
+LUA_API int lua_checkstack(lua_State *L, int size)
+{
+  if (size > LUAI_MAXCSTACK || (L->top - L->base + size) > LUAI_MAXCSTACK) {
+    return 0;  /* Stack overflow. */
+  } else if (size > 0) {
+    lj_state_checkstack(L, (MSize)size);
+  }
+  return 1;
+}
+
+LUALIB_API void luaL_checkstack(lua_State *L, int size, const char *msg)
+{
+  if (!lua_checkstack(L, size))
+    lj_err_callerv(L, LJ_ERR_STKOVM, msg);
+}
+
+LUA_API void lua_xmove(lua_State *L, lua_State *to, int n)
+{
+  TValue *f, *t;
+  if (L == to) return;
+  lj_checkapi_slot(n);
+  lj_checkapi(G(L) == G(to), "move across global states");
+  lj_state_checkstack(to, (MSize)n);
+  f = L->top;
+  t = to->top = to->top + n;
+  while (--n >= 0) copyTV(to, --t, --f);
+  L->top = f;
+}
+
+LUA_API const lua_Number *lua_version(lua_State *L)
+{
+  static const lua_Number version = LUA_VERSION_NUM;
+  UNUSED(L);
+  return &version;
+}
+
+/* -- Stack manipulation -------------------------------------------------- */
+
+LUA_API int lua_gettop(lua_State *L)
+{
+  return (int)(L->top - L->base);
+}
+
+LUA_API void lua_settop(lua_State *L, int idx)
+{
+  if (idx >= 0) {
+    lj_checkapi(idx <= tvref(L->maxstack) - L->base, "bad stack slot %d", idx);
+    if (L->base + idx > L->top) {
+      if (L->base + idx >= tvref(L->maxstack))
+	lj_state_growstack(L, (MSize)idx - (MSize)(L->top - L->base));
+      do { setnilV(L->top++); } while (L->top < L->base + idx);
+    } else {
+      L->top = L->base + idx;
+    }
+  } else {
+    lj_checkapi(-(idx+1) <= (L->top - L->base), "bad stack slot %d", idx);
+    L->top += idx+1;  /* Shrinks top (idx < 0). */
+  }
+}
+
+LUA_API void lua_remove(lua_State *L, int idx)
+{
+  TValue *p = index2adr_stack(L, idx);
+  while (++p < L->top) copyTV(L, p-1, p);
+  L->top--;
+}
+
+LUA_API void lua_insert(lua_State *L, int idx)
+{
+  TValue *q, *p = index2adr_stack(L, idx);
+  for (q = L->top; q > p; q--) copyTV(L, q, q-1);
+  copyTV(L, p, L->top);
+}
+
+static void copy_slot(lua_State *L, TValue *f, int idx)
+{
+  if (idx == LUA_GLOBALSINDEX) {
+    lj_checkapi(tvistab(f), "stack slot %d is not a table", idx);
+    /* NOBARRIER: A thread (i.e. L) is never black. */
+    setgcref(L->env, obj2gco(tabV(f)));
+  } else if (idx == LUA_ENVIRONINDEX) {
+    GCfunc *fn = curr_func(L);
+    if (fn->c.gct != ~LJ_TFUNC)
+      lj_err_msg(L, LJ_ERR_NOENV);
+    lj_checkapi(tvistab(f), "stack slot %d is not a table", idx);
+    setgcref(fn->c.env, obj2gco(tabV(f)));
+    lj_gc_barrier(L, fn, f);
+  } else {
+    TValue *o = index2adr_check(L, idx);
+    copyTV(L, o, f);
+    if (idx < LUA_GLOBALSINDEX)  /* Need a barrier for upvalues. */
+      lj_gc_barrier(L, curr_func(L), f);
+  }
+}
+
+LUA_API void lua_replace(lua_State *L, int idx)
+{
+  lj_checkapi_slot(1);
+  copy_slot(L, L->top - 1, idx);
+  L->top--;
+}
+
+LUA_API void lua_copy(lua_State *L, int fromidx, int toidx)
+{
+  copy_slot(L, index2adr(L, fromidx), toidx);
+}
+
+LUA_API void lua_pushvalue(lua_State *L, int idx)
+{
+  copyTV(L, L->top, index2adr(L, idx));
+  incr_top(L);
+}
+
+/* -- Stack getters ------------------------------------------------------- */
+
+LUA_API int lua_type(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  if (tvisnumber(o)) {
+    return LUA_TNUMBER;
+#if LJ_64 && !LJ_GC64
+  } else if (tvislightud(o)) {
+    return LUA_TLIGHTUSERDATA;
+#endif
+  } else if (o == niltv(L)) {
+    return LUA_TNONE;
+  } else {  /* Magic internal/external tag conversion. ORDER LJ_T */
+    uint32_t t = ~itype(o);
+#if LJ_64
+    int tt = (int)((U64x(75a06,98042110) >> 4*t) & 15u);
+#else
+    int tt = (int)(((t < 8 ? 0x98042110u : 0x75a06u) >> 4*(t&7)) & 15u);
+#endif
+    lj_assertL(tt != LUA_TNIL || tvisnil(o), "bad tag conversion");
+    return tt;
+  }
+}
+
+LUALIB_API void luaL_checktype(lua_State *L, int idx, int tt)
+{
+  if (lua_type(L, idx) != tt)
+    lj_err_argt(L, idx, tt);
+}
+
+LUALIB_API void luaL_checkany(lua_State *L, int idx)
+{
+  if (index2adr(L, idx) == niltv(L))
+    lj_err_arg(L, idx, LJ_ERR_NOVAL);
+}
+
+LUA_API const char *lua_typename(lua_State *L, int t)
+{
+  UNUSED(L);
+  return lj_obj_typename[t+1];
+}
+
+LUA_API int lua_iscfunction(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  return tvisfunc(o) && !isluafunc(funcV(o));
+}
+
+LUA_API int lua_isnumber(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  return (tvisnumber(o) || (tvisstr(o) && lj_strscan_number(strV(o), &tmp)));
+}
+
+LUA_API int lua_isstring(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  return (tvisstr(o) || tvisnumber(o));
+}
+
+LUA_API int lua_isuserdata(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  return (tvisudata(o) || tvislightud(o));
+}
+
+LUA_API int lua_rawequal(lua_State *L, int idx1, int idx2)
+{
+  cTValue *o1 = index2adr(L, idx1);
+  cTValue *o2 = index2adr(L, idx2);
+  return (o1 == niltv(L) || o2 == niltv(L)) ? 0 : lj_obj_equal(o1, o2);
+}
+
+LUA_API int lua_equal(lua_State *L, int idx1, int idx2)
+{
+  cTValue *o1 = index2adr(L, idx1);
+  cTValue *o2 = index2adr(L, idx2);
+  if (tvisint(o1) && tvisint(o2)) {
+    return intV(o1) == intV(o2);
+  } else if (tvisnumber(o1) && tvisnumber(o2)) {
+    return numberVnum(o1) == numberVnum(o2);
+  } else if (itype(o1) != itype(o2)) {
+    return 0;
+  } else if (tvispri(o1)) {
+    return o1 != niltv(L) && o2 != niltv(L);
+#if LJ_64 && !LJ_GC64
+  } else if (tvislightud(o1)) {
+    return o1->u64 == o2->u64;
+#endif
+  } else if (gcrefeq(o1->gcr, o2->gcr)) {
+    return 1;
+  } else if (!tvistabud(o1)) {
+    return 0;
+  } else {
+    TValue *base = lj_meta_equal(L, gcV(o1), gcV(o2), 0);
+    if ((uintptr_t)base <= 1) {
+      return (int)(uintptr_t)base;
+    } else {
+      L->top = base+2;
+      lj_vm_call(L, base, 1+1);
+      L->top -= 2+LJ_FR2;
+      return tvistruecond(L->top+1+LJ_FR2);
+    }
+  }
+}
+
+LUA_API int lua_lessthan(lua_State *L, int idx1, int idx2)
+{
+  cTValue *o1 = index2adr(L, idx1);
+  cTValue *o2 = index2adr(L, idx2);
+  if (o1 == niltv(L) || o2 == niltv(L)) {
+    return 0;
+  } else if (tvisint(o1) && tvisint(o2)) {
+    return intV(o1) < intV(o2);
+  } else if (tvisnumber(o1) && tvisnumber(o2)) {
+    return numberVnum(o1) < numberVnum(o2);
+  } else {
+    TValue *base = lj_meta_comp(L, o1, o2, 0);
+    if ((uintptr_t)base <= 1) {
+      return (int)(uintptr_t)base;
+    } else {
+      L->top = base+2;
+      lj_vm_call(L, base, 1+1);
+      L->top -= 2+LJ_FR2;
+      return tvistruecond(L->top+1+LJ_FR2);
+    }
+  }
+}
+
+LUA_API lua_Number lua_tonumber(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  if (LJ_LIKELY(tvisnumber(o)))
+    return numberVnum(o);
+  else if (tvisstr(o) && lj_strscan_num(strV(o), &tmp))
+    return numV(&tmp);
+  else
+    return 0;
+}
+
+LUA_API lua_Number lua_tonumberx(lua_State *L, int idx, int *ok)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  if (LJ_LIKELY(tvisnumber(o))) {
+    if (ok) *ok = 1;
+    return numberVnum(o);
+  } else if (tvisstr(o) && lj_strscan_num(strV(o), &tmp)) {
+    if (ok) *ok = 1;
+    return numV(&tmp);
+  } else {
+    if (ok) *ok = 0;
+    return 0;
+  }
+}
+
+LUALIB_API lua_Number luaL_checknumber(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  if (LJ_LIKELY(tvisnumber(o)))
+    return numberVnum(o);
+  else if (!(tvisstr(o) && lj_strscan_num(strV(o), &tmp)))
+    lj_err_argt(L, idx, LUA_TNUMBER);
+  return numV(&tmp);
+}
+
+LUALIB_API lua_Number luaL_optnumber(lua_State *L, int idx, lua_Number def)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  if (LJ_LIKELY(tvisnumber(o)))
+    return numberVnum(o);
+  else if (tvisnil(o))
+    return def;
+  else if (!(tvisstr(o) && lj_strscan_num(strV(o), &tmp)))
+    lj_err_argt(L, idx, LUA_TNUMBER);
+  return numV(&tmp);
+}
+
+LUA_API lua_Integer lua_tointeger(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  lua_Number n;
+  if (LJ_LIKELY(tvisint(o))) {
+    return intV(o);
+  } else if (LJ_LIKELY(tvisnum(o))) {
+    n = numV(o);
+  } else {
+    if (!(tvisstr(o) && lj_strscan_number(strV(o), &tmp)))
+      return 0;
+    if (tvisint(&tmp))
+      return intV(&tmp);
+    n = numV(&tmp);
+  }
+#if LJ_64
+  return (lua_Integer)n;
+#else
+  return lj_num2int(n);
+#endif
+}
+
+LUA_API lua_Integer lua_tointegerx(lua_State *L, int idx, int *ok)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  lua_Number n;
+  if (LJ_LIKELY(tvisint(o))) {
+    if (ok) *ok = 1;
+    return intV(o);
+  } else if (LJ_LIKELY(tvisnum(o))) {
+    n = numV(o);
+  } else {
+    if (!(tvisstr(o) && lj_strscan_number(strV(o), &tmp))) {
+      if (ok) *ok = 0;
+      return 0;
+    }
+    if (tvisint(&tmp)) {
+      if (ok) *ok = 1;
+      return intV(&tmp);
+    }
+    n = numV(&tmp);
+  }
+  if (ok) *ok = 1;
+#if LJ_64
+  return (lua_Integer)n;
+#else
+  return lj_num2int(n);
+#endif
+}
+
+LUALIB_API lua_Integer luaL_checkinteger(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  lua_Number n;
+  if (LJ_LIKELY(tvisint(o))) {
+    return intV(o);
+  } else if (LJ_LIKELY(tvisnum(o))) {
+    n = numV(o);
+  } else {
+    if (!(tvisstr(o) && lj_strscan_number(strV(o), &tmp)))
+      lj_err_argt(L, idx, LUA_TNUMBER);
+    if (tvisint(&tmp))
+      return (lua_Integer)intV(&tmp);
+    n = numV(&tmp);
+  }
+#if LJ_64
+  return (lua_Integer)n;
+#else
+  return lj_num2int(n);
+#endif
+}
+
+LUALIB_API lua_Integer luaL_optinteger(lua_State *L, int idx, lua_Integer def)
+{
+  cTValue *o = index2adr(L, idx);
+  TValue tmp;
+  lua_Number n;
+  if (LJ_LIKELY(tvisint(o))) {
+    return intV(o);
+  } else if (LJ_LIKELY(tvisnum(o))) {
+    n = numV(o);
+  } else if (tvisnil(o)) {
+    return def;
+  } else {
+    if (!(tvisstr(o) && lj_strscan_number(strV(o), &tmp)))
+      lj_err_argt(L, idx, LUA_TNUMBER);
+    if (tvisint(&tmp))
+      return (lua_Integer)intV(&tmp);
+    n = numV(&tmp);
+  }
+#if LJ_64
+  return (lua_Integer)n;
+#else
+  return lj_num2int(n);
+#endif
+}
+
+LUA_API int lua_toboolean(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  return tvistruecond(o);
+}
+
+LUA_API const char *lua_tolstring(lua_State *L, int idx, size_t *len)
+{
+  TValue *o = index2adr(L, idx);
+  GCstr *s;
+  if (LJ_LIKELY(tvisstr(o))) {
+    s = strV(o);
+  } else if (tvisnumber(o)) {
+    lj_gc_check(L);
+    o = index2adr(L, idx);  /* GC may move the stack. */
+    s = lj_strfmt_number(L, o);
+    setstrV(L, o, s);
+  } else {
+    if (len != NULL) *len = 0;
+    return NULL;
+  }
+  if (len != NULL) *len = s->len;
+  return strdata(s);
+}
+
+LUALIB_API const char *luaL_checklstring(lua_State *L, int idx, size_t *len)
+{
+  TValue *o = index2adr(L, idx);
+  GCstr *s;
+  if (LJ_LIKELY(tvisstr(o))) {
+    s = strV(o);
+  } else if (tvisnumber(o)) {
+    lj_gc_check(L);
+    o = index2adr(L, idx);  /* GC may move the stack. */
+    s = lj_strfmt_number(L, o);
+    setstrV(L, o, s);
+  } else {
+    lj_err_argt(L, idx, LUA_TSTRING);
+  }
+  if (len != NULL) *len = s->len;
+  return strdata(s);
+}
+
+LUALIB_API const char *luaL_optlstring(lua_State *L, int idx,
+				       const char *def, size_t *len)
+{
+  TValue *o = index2adr(L, idx);
+  GCstr *s;
+  if (LJ_LIKELY(tvisstr(o))) {
+    s = strV(o);
+  } else if (tvisnil(o)) {
+    if (len != NULL) *len = def ? strlen(def) : 0;
+    return def;
+  } else if (tvisnumber(o)) {
+    lj_gc_check(L);
+    o = index2adr(L, idx);  /* GC may move the stack. */
+    s = lj_strfmt_number(L, o);
+    setstrV(L, o, s);
+  } else {
+    lj_err_argt(L, idx, LUA_TSTRING);
+  }
+  if (len != NULL) *len = s->len;
+  return strdata(s);
+}
+
+LUALIB_API int luaL_checkoption(lua_State *L, int idx, const char *def,
+				const char *const lst[])
+{
+  ptrdiff_t i;
+  const char *s = lua_tolstring(L, idx, NULL);
+  if (s == NULL && (s = def) == NULL)
+    lj_err_argt(L, idx, LUA_TSTRING);
+  for (i = 0; lst[i]; i++)
+    if (strcmp(lst[i], s) == 0)
+      return (int)i;
+  lj_err_argv(L, idx, LJ_ERR_INVOPTM, s);
+}
+
+LUA_API size_t lua_objlen(lua_State *L, int idx)
+{
+  TValue *o = index2adr(L, idx);
+  if (tvisstr(o)) {
+    return strV(o)->len;
+  } else if (tvistab(o)) {
+    return (size_t)lj_tab_len(tabV(o));
+  } else if (tvisudata(o)) {
+    return udataV(o)->len;
+  } else if (tvisnumber(o)) {
+    GCstr *s = lj_strfmt_number(L, o);
+    setstrV(L, o, s);
+    return s->len;
+  } else {
+    return 0;
+  }
+}
+
+LUA_API lua_CFunction lua_tocfunction(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  if (tvisfunc(o)) {
+    BCOp op = bc_op(*mref(funcV(o)->c.pc, BCIns));
+    if (op == BC_FUNCC || op == BC_FUNCCW)
+      return funcV(o)->c.f;
+  }
+  return NULL;
+}
+
+LUA_API void *lua_touserdata(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  if (tvisudata(o))
+    return uddata(udataV(o));
+  else if (tvislightud(o))
+    return lightudV(G(L), o);
+  else
+    return NULL;
+}
+
+LUA_API lua_State *lua_tothread(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  return (!tvisthread(o)) ? NULL : threadV(o);
+}
+
+LUA_API const void *lua_topointer(lua_State *L, int idx)
+{
+  return lj_obj_ptr(G(L), index2adr(L, idx));
+}
+
+/* -- Stack setters (object creation) ------------------------------------- */
+
+LUA_API void lua_pushnil(lua_State *L)
+{
+  setnilV(L->top);
+  incr_top(L);
+}
+
+LUA_API void lua_pushnumber(lua_State *L, lua_Number n)
+{
+  setnumV(L->top, n);
+  if (LJ_UNLIKELY(tvisnan(L->top)))
+    setnanV(L->top);  /* Canonicalize injected NaNs. */
+  incr_top(L);
+}
+
+LUA_API void lua_pushinteger(lua_State *L, lua_Integer n)
+{
+  setintptrV(L->top, n);
+  incr_top(L);
+}
+
+LUA_API void lua_pushlstring(lua_State *L, const char *str, size_t len)
+{
+  GCstr *s;
+  lj_gc_check(L);
+  s = lj_str_new(L, str, len);
+  setstrV(L, L->top, s);
+  incr_top(L);
+}
+
+LUA_API void lua_pushstring(lua_State *L, const char *str)
+{
+  if (str == NULL) {
+    setnilV(L->top);
+  } else {
+    GCstr *s;
+    lj_gc_check(L);
+    s = lj_str_newz(L, str);
+    setstrV(L, L->top, s);
+  }
+  incr_top(L);
+}
+
+LUA_API const char *lua_pushvfstring(lua_State *L, const char *fmt,
+				     va_list argp)
+{
+  lj_gc_check(L);
+  return lj_strfmt_pushvf(L, fmt, argp);
+}
+
+LUA_API const char *lua_pushfstring(lua_State *L, const char *fmt, ...)
+{
+  const char *ret;
+  va_list argp;
+  lj_gc_check(L);
+  va_start(argp, fmt);
+  ret = lj_strfmt_pushvf(L, fmt, argp);
+  va_end(argp);
+  return ret;
+}
+
+LUA_API void lua_pushcclosure(lua_State *L, lua_CFunction f, int n)
+{
+  GCfunc *fn;
+  lj_gc_check(L);
+  lj_checkapi_slot(n);
+  fn = lj_func_newC(L, (MSize)n, getcurrenv(L));
+  fn->c.f = f;
+  L->top -= n;
+  while (n--)
+    copyTV(L, &fn->c.upvalue[n], L->top+n);
+  setfuncV(L, L->top, fn);
+  lj_assertL(iswhite(obj2gco(fn)), "new GC object is not white");
+  incr_top(L);
+}
+
+LUA_API void lua_pushboolean(lua_State *L, int b)
+{
+  setboolV(L->top, (b != 0));
+  incr_top(L);
+}
+
+LUA_API void lua_pushlightuserdata(lua_State *L, void *p)
+{
+#if LJ_64
+  p = lj_lightud_intern(L, p);
+#endif
+  setrawlightudV(L->top, p);
+  incr_top(L);
+}
+
+LUA_API void lua_createtable(lua_State *L, int narray, int nrec)
+{
+  lj_gc_check(L);
+  settabV(L, L->top, lj_tab_new_ah(L, narray, nrec));
+  incr_top(L);
+}
+
+LUALIB_API int luaL_newmetatable(lua_State *L, const char *tname)
+{
+  GCtab *regt = tabV(registry(L));
+  TValue *tv = lj_tab_setstr(L, regt, lj_str_newz(L, tname));
+  if (tvisnil(tv)) {
+    GCtab *mt = lj_tab_new(L, 0, 1);
+    settabV(L, tv, mt);
+    settabV(L, L->top++, mt);
+    lj_gc_anybarriert(L, regt);
+    return 1;
+  } else {
+    copyTV(L, L->top++, tv);
+    return 0;
+  }
+}
+
+LUA_API int lua_pushthread(lua_State *L)
+{
+  setthreadV(L, L->top, L);
+  incr_top(L);
+  return (mainthread(G(L)) == L);
+}
+
+LUA_API lua_State *lua_newthread(lua_State *L)
+{
+  lua_State *L1;
+  lj_gc_check(L);
+  L1 = lj_state_new(L);
+  setthreadV(L, L->top, L1);
+  incr_top(L);
+  return L1;
+}
+
+LUA_API void *lua_newuserdata(lua_State *L, size_t size)
+{
+  GCudata *ud;
+  lj_gc_check(L);
+  if (size > LJ_MAX_UDATA)
+    lj_err_msg(L, LJ_ERR_UDATAOV);
+  ud = lj_udata_new(L, (MSize)size, getcurrenv(L));
+  setudataV(L, L->top, ud);
+  incr_top(L);
+  return uddata(ud);
+}
+
+LUA_API void lua_concat(lua_State *L, int n)
+{
+  lj_checkapi_slot(n);
+  if (n >= 2) {
+    n--;
+    do {
+      TValue *top = lj_meta_cat(L, L->top-1, -n);
+      if (top == NULL) {
+	L->top -= n;
+	break;
+      }
+      n -= (int)(L->top - (top - 2*LJ_FR2));
+      L->top = top+2;
+      lj_vm_call(L, top, 1+1);
+      L->top -= 1+LJ_FR2;
+      copyTV(L, L->top-1, L->top+LJ_FR2);
+    } while (--n > 0);
+  } else if (n == 0) {  /* Push empty string. */
+    setstrV(L, L->top, &G(L)->strempty);
+    incr_top(L);
+  }
+  /* else n == 1: nothing to do. */
+}
+
+/* -- Object getters ------------------------------------------------------ */
+
+LUA_API void lua_gettable(lua_State *L, int idx)
+{
+  cTValue *t = index2adr_check(L, idx);
+  cTValue *v = lj_meta_tget(L, t, L->top-1);
+  if (v == NULL) {
+    L->top += 2;
+    lj_vm_call(L, L->top-2, 1+1);
+    L->top -= 2+LJ_FR2;
+    v = L->top+1+LJ_FR2;
+  }
+  copyTV(L, L->top-1, v);
+}
+
+LUA_API void lua_getfield(lua_State *L, int idx, const char *k)
+{
+  cTValue *v, *t = index2adr_check(L, idx);
+  TValue key;
+  setstrV(L, &key, lj_str_newz(L, k));
+  v = lj_meta_tget(L, t, &key);
+  if (v == NULL) {
+    L->top += 2;
+    lj_vm_call(L, L->top-2, 1+1);
+    L->top -= 2+LJ_FR2;
+    v = L->top+1+LJ_FR2;
+  }
+  copyTV(L, L->top, v);
+  incr_top(L);
+}
+
+LUA_API void lua_rawget(lua_State *L, int idx)
+{
+  cTValue *t = index2adr(L, idx);
+  lj_checkapi(tvistab(t), "stack slot %d is not a table", idx);
+  copyTV(L, L->top-1, lj_tab_get(L, tabV(t), L->top-1));
+}
+
+LUA_API void lua_rawgeti(lua_State *L, int idx, int n)
+{
+  cTValue *v, *t = index2adr(L, idx);
+  lj_checkapi(tvistab(t), "stack slot %d is not a table", idx);
+  v = lj_tab_getint(tabV(t), n);
+  if (v) {
+    copyTV(L, L->top, v);
+  } else {
+    setnilV(L->top);
+  }
+  incr_top(L);
+}
+
+LUA_API int lua_getmetatable(lua_State *L, int idx)
+{
+  cTValue *o = index2adr(L, idx);
+  GCtab *mt = NULL;
+  if (tvistab(o))
+    mt = tabref(tabV(o)->metatable);
+  else if (tvisudata(o))
+    mt = tabref(udataV(o)->metatable);
+  else
+    mt = tabref(basemt_obj(G(L), o));
+  if (mt == NULL)
+    return 0;
+  settabV(L, L->top, mt);
+  incr_top(L);
+  return 1;
+}
+
+LUALIB_API int luaL_getmetafield(lua_State *L, int idx, const char *field)
+{
+  if (lua_getmetatable(L, idx)) {
+    cTValue *tv = lj_tab_getstr(tabV(L->top-1), lj_str_newz(L, field));
+    if (tv && !tvisnil(tv)) {
+      copyTV(L, L->top-1, tv);
+      return 1;
+    }
+    L->top--;
+  }
+  return 0;
+}
+
+LUA_API void lua_getfenv(lua_State *L, int idx)
+{
+  cTValue *o = index2adr_check(L, idx);
+  if (tvisfunc(o)) {
+    settabV(L, L->top, tabref(funcV(o)->c.env));
+  } else if (tvisudata(o)) {
+    settabV(L, L->top, tabref(udataV(o)->env));
+  } else if (tvisthread(o)) {
+    settabV(L, L->top, tabref(threadV(o)->env));
+  } else {
+    setnilV(L->top);
+  }
+  incr_top(L);
+}
+
+LUA_API int lua_next(lua_State *L, int idx)
+{
+  cTValue *t = index2adr(L, idx);
+  int more;
+  lj_checkapi(tvistab(t), "stack slot %d is not a table", idx);
+  more = lj_tab_next(tabV(t), L->top-1, L->top-1);
+  if (more > 0) {
+    incr_top(L);  /* Return new key and value slot. */
+  } else if (!more) {  /* End of traversal. */
+    L->top--;  /* Remove key slot. */
+  } else {
+    lj_err_msg(L, LJ_ERR_NEXTIDX);
+  }
+  return more;
+}
+
+LUA_API const char *lua_getupvalue(lua_State *L, int idx, int n)
+{
+  TValue *val;
+  GCobj *o;
+  const char *name = lj_debug_uvnamev(index2adr(L, idx), (uint32_t)(n-1), &val, &o);
+  if (name) {
+    copyTV(L, L->top, val);
+    incr_top(L);
+  }
+  return name;
+}
+
+LUA_API void *lua_upvalueid(lua_State *L, int idx, int n)
+{
+  GCfunc *fn = funcV(index2adr(L, idx));
+  n--;
+  lj_checkapi((uint32_t)n < fn->l.nupvalues, "bad upvalue %d", n);
+  return isluafunc(fn) ? (void *)gcref(fn->l.uvptr[n]) :
+			 (void *)&fn->c.upvalue[n];
+}
+
+LUA_API void lua_upvaluejoin(lua_State *L, int idx1, int n1, int idx2, int n2)
+{
+  GCfunc *fn1 = funcV(index2adr(L, idx1));
+  GCfunc *fn2 = funcV(index2adr(L, idx2));
+  n1--; n2--;
+  lj_checkapi(isluafunc(fn1), "stack slot %d is not a Lua function", idx1);
+  lj_checkapi(isluafunc(fn2), "stack slot %d is not a Lua function", idx2);
+  lj_checkapi((uint32_t)n1 < fn1->l.nupvalues, "bad upvalue %d", n1+1);
+  lj_checkapi((uint32_t)n2 < fn2->l.nupvalues, "bad upvalue %d", n2+1);
+  setgcrefr(fn1->l.uvptr[n1], fn2->l.uvptr[n2]);
+  lj_gc_objbarrier(L, fn1, gcref(fn1->l.uvptr[n1]));
+}
+
+LUALIB_API void *luaL_testudata(lua_State *L, int idx, const char *tname)
+{
+  cTValue *o = index2adr(L, idx);
+  if (tvisudata(o)) {
+    GCudata *ud = udataV(o);
+    cTValue *tv = lj_tab_getstr(tabV(registry(L)), lj_str_newz(L, tname));
+    if (tv && tvistab(tv) && tabV(tv) == tabref(ud->metatable))
+      return uddata(ud);
+  }
+  return NULL;  /* value is not a userdata with a metatable */
+}
+
+LUALIB_API void *luaL_checkudata(lua_State *L, int idx, const char *tname)
+{
+  void *p = luaL_testudata(L, idx, tname);
+  if (!p) lj_err_argtype(L, idx, tname);
+  return p;
+}
+
+/* -- Object setters ------------------------------------------------------ */
+
+LUA_API void lua_settable(lua_State *L, int idx)
+{
+  TValue *o;
+  cTValue *t = index2adr_check(L, idx);
+  lj_checkapi_slot(2);
+  o = lj_meta_tset(L, t, L->top-2);
+  if (o) {
+    /* NOBARRIER: lj_meta_tset ensures the table is not black. */
+    L->top -= 2;
+    copyTV(L, o, L->top+1);
+  } else {
+    TValue *base = L->top;
+    copyTV(L, base+2, base-3-2*LJ_FR2);
+    L->top = base+3;
+    lj_vm_call(L, base, 0+1);
+    L->top -= 3+LJ_FR2;
+  }
+}
+
+LUA_API void lua_setfield(lua_State *L, int idx, const char *k)
+{
+  TValue *o;
+  TValue key;
+  cTValue *t = index2adr_check(L, idx);
+  lj_checkapi_slot(1);
+  setstrV(L, &key, lj_str_newz(L, k));
+  o = lj_meta_tset(L, t, &key);
+  if (o) {
+    /* NOBARRIER: lj_meta_tset ensures the table is not black. */
+    copyTV(L, o, --L->top);
+  } else {
+    TValue *base = L->top;
+    copyTV(L, base+2, base-3-2*LJ_FR2);
+    L->top = base+3;
+    lj_vm_call(L, base, 0+1);
+    L->top -= 2+LJ_FR2;
+  }
+}
+
+LUA_API void lua_rawset(lua_State *L, int idx)
+{
+  GCtab *t = tabV(index2adr(L, idx));
+  TValue *dst, *key;
+  lj_checkapi_slot(2);
+  key = L->top-2;
+  dst = lj_tab_set(L, t, key);
+  copyTV(L, dst, key+1);
+  lj_gc_anybarriert(L, t);
+  L->top = key;
+}
+
+LUA_API void lua_rawseti(lua_State *L, int idx, int n)
+{
+  GCtab *t = tabV(index2adr(L, idx));
+  TValue *dst, *src;
+  lj_checkapi_slot(1);
+  dst = lj_tab_setint(L, t, n);
+  src = L->top-1;
+  copyTV(L, dst, src);
+  lj_gc_barriert(L, t, dst);
+  L->top = src;
+}
+
+LUA_API int lua_setmetatable(lua_State *L, int idx)
+{
+  global_State *g;
+  GCtab *mt;
+  cTValue *o = index2adr_check(L, idx);
+  lj_checkapi_slot(1);
+  if (tvisnil(L->top-1)) {
+    mt = NULL;
+  } else {
+    lj_checkapi(tvistab(L->top-1), "top stack slot is not a table");
+    mt = tabV(L->top-1);
+  }
+  g = G(L);
+  if (tvistab(o)) {
+    setgcref(tabV(o)->metatable, obj2gco(mt));
+    if (mt)
+      lj_gc_objbarriert(L, tabV(o), mt);
+  } else if (tvisudata(o)) {
+    setgcref(udataV(o)->metatable, obj2gco(mt));
+    if (mt)
+      lj_gc_objbarrier(L, udataV(o), mt);
+  } else {
+    /* Flush cache, since traces specialize to basemt. But not during __gc. */
+    if (lj_trace_flushall(L))
+      lj_err_caller(L, LJ_ERR_NOGCMM);
+    if (tvisbool(o)) {
+      /* NOBARRIER: basemt is a GC root. */
+      setgcref(basemt_it(g, LJ_TTRUE), obj2gco(mt));
+      setgcref(basemt_it(g, LJ_TFALSE), obj2gco(mt));
+    } else {
+      /* NOBARRIER: basemt is a GC root. */
+      setgcref(basemt_obj(g, o), obj2gco(mt));
+    }
+  }
+  L->top--;
+  return 1;
+}
+
+LUALIB_API void luaL_setmetatable(lua_State *L, const char *tname)
+{
+  lua_getfield(L, LUA_REGISTRYINDEX, tname);
+  lua_setmetatable(L, -2);
+}
+
+LUA_API int lua_setfenv(lua_State *L, int idx)
+{
+  cTValue *o = index2adr_check(L, idx);
+  GCtab *t;
+  lj_checkapi_slot(1);
+  lj_checkapi(tvistab(L->top-1), "top stack slot is not a table");
+  t = tabV(L->top-1);
+  if (tvisfunc(o)) {
+    setgcref(funcV(o)->c.env, obj2gco(t));
+  } else if (tvisudata(o)) {
+    setgcref(udataV(o)->env, obj2gco(t));
+  } else if (tvisthread(o)) {
+    setgcref(threadV(o)->env, obj2gco(t));
+  } else {
+    L->top--;
+    return 0;
+  }
+  lj_gc_objbarrier(L, gcV(o), t);
+  L->top--;
+  return 1;
+}
+
+LUA_API const char *lua_setupvalue(lua_State *L, int idx, int n)
+{
+  cTValue *f = index2adr(L, idx);
+  TValue *val;
+  GCobj *o;
+  const char *name;
+  lj_checkapi_slot(1);
+  name = lj_debug_uvnamev(f, (uint32_t)(n-1), &val, &o);
+  if (name) {
+    L->top--;
+    copyTV(L, val, L->top);
+    lj_gc_barrier(L, o, L->top);
+  }
+  return name;
+}
+
+/* -- Calls --------------------------------------------------------------- */
+
+#if LJ_FR2
+static TValue *api_call_base(lua_State *L, int nargs)
+{
+  TValue *o = L->top, *base = o - nargs;
+  L->top = o+1;
+  for (; o > base; o--) copyTV(L, o, o-1);
+  setnilV(o);
+  return o+1;
+}
+#else
+#define api_call_base(L, nargs)	(L->top - (nargs))
+#endif
+
+LUA_API void lua_call(lua_State *L, int nargs, int nresults)
+{
+  lj_checkapi(L->status == LUA_OK || L->status == LUA_ERRERR,
+	      "thread called in wrong state %d", L->status);
+  lj_checkapi_slot(nargs+1);
+  lj_vm_call(L, api_call_base(L, nargs), nresults+1);
+}
+
+LUA_API int lua_pcall(lua_State *L, int nargs, int nresults, int errfunc)
+{
+  global_State *g = G(L);
+  uint8_t oldh = hook_save(g);
+  ptrdiff_t ef;
+  int status;
+  lj_checkapi(L->status == LUA_OK || L->status == LUA_ERRERR,
+	      "thread called in wrong state %d", L->status);
+  lj_checkapi_slot(nargs+1);
+  if (errfunc == 0) {
+    ef = 0;
+  } else {
+    cTValue *o = index2adr_stack(L, errfunc);
+    ef = savestack(L, o);
+  }
+  status = lj_vm_pcall(L, api_call_base(L, nargs), nresults+1, ef);
+  if (status) hook_restore(g, oldh);
+  return status;
+}
+
+static TValue *cpcall(lua_State *L, lua_CFunction func, void *ud)
+{
+  GCfunc *fn = lj_func_newC(L, 0, getcurrenv(L));
+  TValue *top = L->top;
+  fn->c.f = func;
+  setfuncV(L, top++, fn);
+  if (LJ_FR2) setnilV(top++);
+#if LJ_64
+  ud = lj_lightud_intern(L, ud);
+#endif
+  setrawlightudV(top++, ud);
+  cframe_nres(L->cframe) = 1+0;  /* Zero results. */
+  L->top = top;
+  return top-1;  /* Now call the newly allocated C function. */
+}
+
+LUA_API int lua_cpcall(lua_State *L, lua_CFunction func, void *ud)
+{
+  global_State *g = G(L);
+  uint8_t oldh = hook_save(g);
+  int status;
+  lj_checkapi(L->status == LUA_OK || L->status == LUA_ERRERR,
+	      "thread called in wrong state %d", L->status);
+  status = lj_vm_cpcall(L, func, ud, cpcall);
+  if (status) hook_restore(g, oldh);
+  return status;
+}
+
+LUALIB_API int luaL_callmeta(lua_State *L, int idx, const char *field)
+{
+  if (luaL_getmetafield(L, idx, field)) {
+    TValue *top = L->top--;
+    if (LJ_FR2) setnilV(top++);
+    copyTV(L, top++, index2adr(L, idx));
+    L->top = top;
+    lj_vm_call(L, top-1, 1+1);
+    return 1;
+  }
+  return 0;
+}
+
+/* -- Coroutine yield and resume ------------------------------------------ */
+
+LUA_API int lua_isyieldable(lua_State *L)
+{
+  return cframe_canyield(L->cframe);
+}
+
+LUA_API int lua_yield(lua_State *L, int nresults)
+{
+  void *cf = L->cframe;
+  global_State *g = G(L);
+  if (cframe_canyield(cf)) {
+    cf = cframe_raw(cf);
+    if (!hook_active(g)) {  /* Regular yield: move results down if needed. */
+      cTValue *f = L->top - nresults;
+      if (f > L->base) {
+	TValue *t = L->base;
+	while (--nresults >= 0) copyTV(L, t++, f++);
+	L->top = t;
+      }
+      L->cframe = NULL;
+      L->status = LUA_YIELD;
+      return -1;
+    } else {  /* Yield from hook: add a pseudo-frame. */
+      TValue *top = L->top;
+      hook_leave(g);
+      (top++)->u64 = cframe_multres(cf);
+      setcont(top, lj_cont_hook);
+      if (LJ_FR2) top++;
+      setframe_pc(top, cframe_pc(cf)-1);
+      top++;
+      setframe_gc(top, obj2gco(L), LJ_TTHREAD);
+      if (LJ_FR2) top++;
+      setframe_ftsz(top, ((char *)(top+1)-(char *)L->base)+FRAME_CONT);
+      L->top = L->base = top+1;
+#if ((defined(__GNUC__) || defined(__clang__)) && (LJ_TARGET_X64 || defined(LUAJIT_UNWIND_EXTERNAL)) && !LJ_NO_UNWIND) || LJ_TARGET_WINDOWS
+      lj_err_throw(L, LUA_YIELD);
+#else
+      L->cframe = NULL;
+      L->status = LUA_YIELD;
+      lj_vm_unwind_c(cf, LUA_YIELD);
+#endif
+    }
+  }
+  lj_err_msg(L, LJ_ERR_CYIELD);
+  return 0;  /* unreachable */
+}
+
+LUA_API int lua_resume(lua_State *L, int nargs)
+{
+  if (L->cframe == NULL && L->status <= LUA_YIELD)
+    return lj_vm_resume(L,
+      L->status == LUA_OK ? api_call_base(L, nargs) : L->top - nargs,
+      0, 0);
+  L->top = L->base;
+  setstrV(L, L->top, lj_err_str(L, LJ_ERR_COSUSP));
+  incr_top(L);
+  return LUA_ERRRUN;
+}
+
+/* -- GC and memory management -------------------------------------------- */
+
+LUA_API int lua_gc(lua_State *L, int what, int data)
+{
+  global_State *g = G(L);
+  int res = 0;
+  switch (what) {
+  case LUA_GCSTOP:
+    g->gc.threshold = LJ_MAX_MEM;
+    break;
+  case LUA_GCRESTART:
+    g->gc.threshold = data == -1 ? (g->gc.total/100)*g->gc.pause : g->gc.total;
+    break;
+  case LUA_GCCOLLECT:
+    lj_gc_fullgc(L);
+    break;
+  case LUA_GCCOUNT:
+    res = (int)(g->gc.total >> 10);
+    break;
+  case LUA_GCCOUNTB:
+    res = (int)(g->gc.total & 0x3ff);
+    break;
+  case LUA_GCSTEP: {
+    GCSize a = (GCSize)data << 10;
+    g->gc.threshold = (a <= g->gc.total) ? (g->gc.total - a) : 0;
+    while (g->gc.total >= g->gc.threshold)
+      if (lj_gc_step(L) > 0) {
+	res = 1;
+	break;
+      }
+    break;
+  }
+  case LUA_GCSETPAUSE:
+    res = (int)(g->gc.pause);
+    g->gc.pause = (MSize)data;
+    break;
+  case LUA_GCSETSTEPMUL:
+    res = (int)(g->gc.stepmul);
+    g->gc.stepmul = (MSize)data;
+    break;
+  case LUA_GCISRUNNING:
+    res = (g->gc.threshold != LJ_MAX_MEM);
+    break;
+  default:
+    res = -1;  /* Invalid option. */
+  }
+  return res;
+}
+
+LUA_API lua_Alloc lua_getallocf(lua_State *L, void **ud)
+{
+  global_State *g = G(L);
+  if (ud) *ud = g->allocd;
+  return g->allocf;
+}
+
+LUA_API void lua_setallocf(lua_State *L, lua_Alloc f, void *ud)
+{
+  global_State *g = G(L);
+  g->allocd = ud;
+  g->allocf = f;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_arch.h b/libs/luajit-cmake/luajit/src/lj_arch.h
new file mode 100644
index 0000000..5fb798d
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_arch.h
@@ -0,0 +1,719 @@
+/*
+** Target architecture selection.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_ARCH_H
+#define _LJ_ARCH_H
+
+#include "lua.h"
+
+/* -- Target definitions -------------------------------------------------- */
+
+/* Target endianess. */
+#define LUAJIT_LE	0
+#define LUAJIT_BE	1
+
+/* Target architectures. */
+#define LUAJIT_ARCH_X86		1
+#define LUAJIT_ARCH_x86		1
+#define LUAJIT_ARCH_X64		2
+#define LUAJIT_ARCH_x64		2
+#define LUAJIT_ARCH_ARM		3
+#define LUAJIT_ARCH_arm		3
+#define LUAJIT_ARCH_ARM64	4
+#define LUAJIT_ARCH_arm64	4
+#define LUAJIT_ARCH_PPC		5
+#define LUAJIT_ARCH_ppc		5
+#define LUAJIT_ARCH_MIPS	6
+#define LUAJIT_ARCH_mips	6
+#define LUAJIT_ARCH_MIPS32	6
+#define LUAJIT_ARCH_mips32	6
+#define LUAJIT_ARCH_MIPS64	7
+#define LUAJIT_ARCH_mips64	7
+
+/* Target OS. */
+#define LUAJIT_OS_OTHER		0
+#define LUAJIT_OS_WINDOWS	1
+#define LUAJIT_OS_LINUX		2
+#define LUAJIT_OS_OSX		3
+#define LUAJIT_OS_BSD		4
+#define LUAJIT_OS_POSIX		5
+
+/* Number mode. */
+#define LJ_NUMMODE_SINGLE	0	/* Single-number mode only. */
+#define LJ_NUMMODE_SINGLE_DUAL	1	/* Default to single-number mode. */
+#define LJ_NUMMODE_DUAL		2	/* Dual-number mode only. */
+#define LJ_NUMMODE_DUAL_SINGLE	3	/* Default to dual-number mode. */
+
+/* -- Target detection ---------------------------------------------------- */
+
+/* Select native target if no target defined. */
+#ifndef LUAJIT_TARGET
+
+#if defined(__i386) || defined(__i386__) || defined(_M_IX86)
+#define LUAJIT_TARGET	LUAJIT_ARCH_X86
+#elif defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
+#define LUAJIT_TARGET	LUAJIT_ARCH_X64
+#elif defined(__arm__) || defined(__arm) || defined(__ARM__) || defined(__ARM)
+#define LUAJIT_TARGET	LUAJIT_ARCH_ARM
+#elif defined(__aarch64__)
+#define LUAJIT_TARGET	LUAJIT_ARCH_ARM64
+#elif defined(__ppc__) || defined(__ppc) || defined(__PPC__) || defined(__PPC) || defined(__powerpc__) || defined(__powerpc) || defined(__POWERPC__) || defined(__POWERPC) || defined(_M_PPC)
+#define LUAJIT_TARGET	LUAJIT_ARCH_PPC
+#elif defined(__mips64__) || defined(__mips64) || defined(__MIPS64__) || defined(__MIPS64)
+#define LUAJIT_TARGET	LUAJIT_ARCH_MIPS64
+#elif defined(__mips__) || defined(__mips) || defined(__MIPS__) || defined(__MIPS)
+#define LUAJIT_TARGET	LUAJIT_ARCH_MIPS32
+#else
+#error "No support for this architecture (yet)"
+#endif
+
+#endif
+
+/* Select native OS if no target OS defined. */
+#ifndef LUAJIT_OS
+
+#if defined(_WIN32) && !defined(_XBOX_VER)
+#define LUAJIT_OS	LUAJIT_OS_WINDOWS
+#elif defined(__linux__)
+#define LUAJIT_OS	LUAJIT_OS_LINUX
+#elif defined(__MACH__) && defined(__APPLE__)
+#include "TargetConditionals.h"
+#define LUAJIT_OS	LUAJIT_OS_OSX
+#elif (defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
+       defined(__NetBSD__) || defined(__OpenBSD__) || \
+       defined(__DragonFly__)) && !defined(__ORBIS__) && !defined(__PROSPERO__)
+#define LUAJIT_OS	LUAJIT_OS_BSD
+#elif (defined(__sun__) && defined(__svr4__))
+#define LJ_TARGET_SOLARIS	1
+#define LUAJIT_OS	LUAJIT_OS_POSIX
+#elif defined(__HAIKU__)
+#define LUAJIT_OS	LUAJIT_OS_POSIX
+#elif defined(__CYGWIN__)
+#define LJ_TARGET_CYGWIN	1
+#define LUAJIT_OS	LUAJIT_OS_POSIX
+#elif defined(__QNX__)
+#define LJ_TARGET_QNX		1
+#define LUAJIT_OS	LUAJIT_OS_POSIX
+#else
+#define LUAJIT_OS	LUAJIT_OS_OTHER
+#endif
+
+#endif
+
+/* Set target OS properties. */
+#if LUAJIT_OS == LUAJIT_OS_WINDOWS
+#define LJ_OS_NAME	"Windows"
+#elif LUAJIT_OS == LUAJIT_OS_LINUX
+#define LJ_OS_NAME	"Linux"
+#elif LUAJIT_OS == LUAJIT_OS_OSX
+#define LJ_OS_NAME	"OSX"
+#elif LUAJIT_OS == LUAJIT_OS_BSD
+#define LJ_OS_NAME	"BSD"
+#elif LUAJIT_OS == LUAJIT_OS_POSIX
+#define LJ_OS_NAME	"POSIX"
+#else
+#define LJ_OS_NAME	"Other"
+#endif
+
+#define LJ_TARGET_WINDOWS	(LUAJIT_OS == LUAJIT_OS_WINDOWS)
+#define LJ_TARGET_LINUX		(LUAJIT_OS == LUAJIT_OS_LINUX)
+#define LJ_TARGET_OSX		(LUAJIT_OS == LUAJIT_OS_OSX)
+#define LJ_TARGET_BSD		(LUAJIT_OS == LUAJIT_OS_BSD)
+#define LJ_TARGET_POSIX		(LUAJIT_OS > LUAJIT_OS_WINDOWS)
+#define LJ_TARGET_DLOPEN	LJ_TARGET_POSIX
+
+#if TARGET_OS_IPHONE
+#define LJ_TARGET_IOS		1
+#else
+#define LJ_TARGET_IOS		0
+#endif
+
+#ifdef __CELLOS_LV2__
+#define LJ_TARGET_PS3		1
+#define LJ_TARGET_CONSOLE	1
+#endif
+
+#ifdef __ORBIS__
+#define LJ_TARGET_PS4		1
+#define LJ_TARGET_CONSOLE	1
+#undef NULL
+#define NULL ((void*)0)
+#endif
+
+#ifdef __PROSPERO__
+#define LJ_TARGET_PS5		1
+#define LJ_TARGET_CONSOLE	1
+#undef NULL
+#define NULL ((void*)0)
+#endif
+
+#ifdef __psp2__
+#define LJ_TARGET_PSVITA	1
+#define LJ_TARGET_CONSOLE	1
+#endif
+
+#if _XBOX_VER >= 200
+#define LJ_TARGET_XBOX360	1
+#define LJ_TARGET_CONSOLE	1
+#endif
+
+#ifdef _DURANGO
+#define LJ_TARGET_XBOXONE	1
+#define LJ_TARGET_CONSOLE	1
+#define LJ_TARGET_GC64		1
+#endif
+
+#ifdef __NX__
+#define LJ_TARGET_NX		1
+#define LJ_TARGET_CONSOLE	1
+#undef NULL
+#define NULL ((void*)0)
+#endif
+
+#ifdef _UWP
+#define LJ_TARGET_UWP		1
+#if LUAJIT_TARGET == LUAJIT_ARCH_X64
+#define LJ_TARGET_GC64		1
+#endif
+#endif
+
+/* -- Arch-specific settings ---------------------------------------------- */
+
+/* Set target architecture properties. */
+#if LUAJIT_TARGET == LUAJIT_ARCH_X86
+
+#define LJ_ARCH_NAME		"x86"
+#define LJ_ARCH_BITS		32
+#define LJ_ARCH_ENDIAN		LUAJIT_LE
+#define LJ_TARGET_X86		1
+#define LJ_TARGET_X86ORX64	1
+#define LJ_TARGET_EHRETREG	0
+#define LJ_TARGET_EHRAREG	8
+#define LJ_TARGET_MASKSHIFT	1
+#define LJ_TARGET_MASKROT	1
+#define LJ_TARGET_UNALIGNED	1
+#define LJ_ARCH_NUMMODE		LJ_NUMMODE_SINGLE_DUAL
+
+#elif LUAJIT_TARGET == LUAJIT_ARCH_X64
+
+#define LJ_ARCH_NAME		"x64"
+#define LJ_ARCH_BITS		64
+#define LJ_ARCH_ENDIAN		LUAJIT_LE
+#define LJ_TARGET_X64		1
+#define LJ_TARGET_X86ORX64	1
+#define LJ_TARGET_EHRETREG	0
+#define LJ_TARGET_EHRAREG	16
+#define LJ_TARGET_JUMPRANGE	31	/* +-2^31 = +-2GB */
+#define LJ_TARGET_MASKSHIFT	1
+#define LJ_TARGET_MASKROT	1
+#define LJ_TARGET_UNALIGNED	1
+#define LJ_ARCH_NUMMODE		LJ_NUMMODE_SINGLE_DUAL
+#ifndef LUAJIT_DISABLE_GC64
+#define LJ_TARGET_GC64		1
+#elif LJ_TARGET_OSX
+#error "macOS requires GC64 -- don't disable it"
+#endif
+
+#elif LUAJIT_TARGET == LUAJIT_ARCH_ARM
+
+#define LJ_ARCH_NAME		"arm"
+#define LJ_ARCH_BITS		32
+#define LJ_ARCH_ENDIAN		LUAJIT_LE
+#if !defined(LJ_ARCH_HASFPU) && __SOFTFP__
+#define LJ_ARCH_HASFPU		0
+#endif
+#if !defined(LJ_ABI_SOFTFP) && !__ARM_PCS_VFP
+#define LJ_ABI_SOFTFP		1
+#endif
+#define LJ_ABI_EABI		1
+#define LJ_TARGET_ARM		1
+#define LJ_TARGET_EHRETREG	0
+#define LJ_TARGET_EHRAREG	14
+#define LJ_TARGET_JUMPRANGE	25	/* +-2^25 = +-32MB */
+#define LJ_TARGET_MASKSHIFT	0
+#define LJ_TARGET_MASKROT	1
+#define LJ_TARGET_UNIFYROT	2	/* Want only IR_BROR. */
+#define LJ_ARCH_NUMMODE		LJ_NUMMODE_DUAL
+
+#if __ARM_ARCH == 8 || __ARM_ARCH_8__ || __ARM_ARCH_8A__
+#define LJ_ARCH_VERSION		80
+#elif __ARM_ARCH == 7 || __ARM_ARCH_7__ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH_7S__ || __ARM_ARCH_7VE__
+#define LJ_ARCH_VERSION		70
+#elif __ARM_ARCH_6T2__
+#define LJ_ARCH_VERSION		61
+#elif __ARM_ARCH == 6 || __ARM_ARCH_6__ || __ARM_ARCH_6J__ || __ARM_ARCH_6K__ || __ARM_ARCH_6Z__ || __ARM_ARCH_6ZK__
+#define LJ_ARCH_VERSION		60
+#else
+#define LJ_ARCH_VERSION		50
+#endif
+
+#elif LUAJIT_TARGET == LUAJIT_ARCH_ARM64
+
+#define LJ_ARCH_BITS		64
+#if defined(__AARCH64EB__)
+#define LJ_ARCH_NAME		"arm64be"
+#define LJ_ARCH_ENDIAN		LUAJIT_BE
+#else
+#define LJ_ARCH_NAME		"arm64"
+#define LJ_ARCH_ENDIAN		LUAJIT_LE
+#endif
+#define LJ_TARGET_ARM64		1
+#define LJ_TARGET_EHRETREG	0
+#define LJ_TARGET_EHRAREG	30
+#define LJ_TARGET_JUMPRANGE	27	/* +-2^27 = +-128MB */
+#define LJ_TARGET_MASKSHIFT	1
+#define LJ_TARGET_MASKROT	1
+#define LJ_TARGET_UNIFYROT	2	/* Want only IR_BROR. */
+#define LJ_TARGET_GC64		1
+#define LJ_ARCH_NUMMODE		LJ_NUMMODE_DUAL
+
+#define LJ_ARCH_VERSION		80
+
+#elif LUAJIT_TARGET == LUAJIT_ARCH_PPC
+
+#ifndef LJ_ARCH_ENDIAN
+#if __BYTE_ORDER__ != __ORDER_BIG_ENDIAN__
+#define LJ_ARCH_ENDIAN		LUAJIT_LE
+#else
+#define LJ_ARCH_ENDIAN		LUAJIT_BE
+#endif
+#endif
+
+#if _LP64
+#define LJ_ARCH_BITS		64
+#if LJ_ARCH_ENDIAN == LUAJIT_LE
+#define LJ_ARCH_NAME		"ppc64le"
+#else
+#define LJ_ARCH_NAME		"ppc64"
+#endif
+#else
+#define LJ_ARCH_BITS		32
+#define LJ_ARCH_NAME		"ppc"
+
+#if !defined(LJ_ARCH_HASFPU)
+#if defined(_SOFT_FLOAT) || defined(_SOFT_DOUBLE)
+#define LJ_ARCH_HASFPU		0
+#else
+#define LJ_ARCH_HASFPU		1
+#endif
+#endif
+
+#if !defined(LJ_ABI_SOFTFP)
+#if defined(_SOFT_FLOAT) || defined(_SOFT_DOUBLE)
+#define LJ_ABI_SOFTFP		1
+#else
+#define LJ_ABI_SOFTFP		0
+#endif
+#endif
+#endif
+
+#if LJ_ABI_SOFTFP
+#define LJ_ARCH_NUMMODE		LJ_NUMMODE_DUAL
+#else
+#define LJ_ARCH_NUMMODE		LJ_NUMMODE_DUAL_SINGLE
+#endif
+
+#define LJ_TARGET_PPC		1
+#define LJ_TARGET_EHRETREG	3
+#define LJ_TARGET_EHRAREG	65
+#define LJ_TARGET_JUMPRANGE	25	/* +-2^25 = +-32MB */
+#define LJ_TARGET_MASKSHIFT	0
+#define LJ_TARGET_MASKROT	1
+#define LJ_TARGET_UNIFYROT	1	/* Want only IR_BROL. */
+
+#if LJ_TARGET_CONSOLE
+#define LJ_ARCH_PPC32ON64	1
+#define LJ_ARCH_NOFFI		1
+#elif LJ_ARCH_BITS == 64
+#error "No support for PPC64"
+#endif
+
+#if _ARCH_PWR7
+#define LJ_ARCH_VERSION		70
+#elif _ARCH_PWR6
+#define LJ_ARCH_VERSION		60
+#elif _ARCH_PWR5X
+#define LJ_ARCH_VERSION		51
+#elif _ARCH_PWR5
+#define LJ_ARCH_VERSION		50
+#elif _ARCH_PWR4
+#define LJ_ARCH_VERSION		40
+#else
+#define LJ_ARCH_VERSION		0
+#endif
+#if _ARCH_PPCSQ
+#define LJ_ARCH_SQRT		1
+#endif
+#if _ARCH_PWR5X
+#define LJ_ARCH_ROUND		1
+#endif
+#if __PPU__
+#define LJ_ARCH_CELL		1
+#endif
+#if LJ_TARGET_XBOX360
+#define LJ_ARCH_XENON		1
+#endif
+
+#elif LUAJIT_TARGET == LUAJIT_ARCH_MIPS32 || LUAJIT_TARGET == LUAJIT_ARCH_MIPS64
+
+#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL)
+#if __mips_isa_rev >= 6
+#define LJ_TARGET_MIPSR6	1
+#define LJ_TARGET_UNALIGNED	1
+#endif
+#if LUAJIT_TARGET == LUAJIT_ARCH_MIPS32
+#if LJ_TARGET_MIPSR6
+#define LJ_ARCH_NAME		"mips32r6el"
+#else
+#define LJ_ARCH_NAME		"mipsel"
+#endif
+#else
+#if LJ_TARGET_MIPSR6
+#define LJ_ARCH_NAME		"mips64r6el"
+#else
+#define LJ_ARCH_NAME		"mips64el"
+#endif
+#endif
+#define LJ_ARCH_ENDIAN		LUAJIT_LE
+#else
+#if LUAJIT_TARGET == LUAJIT_ARCH_MIPS32
+#if LJ_TARGET_MIPSR6
+#define LJ_ARCH_NAME		"mips32r6"
+#else
+#define LJ_ARCH_NAME		"mips"
+#endif
+#else
+#if LJ_TARGET_MIPSR6
+#define LJ_ARCH_NAME		"mips64r6"
+#else
+#define LJ_ARCH_NAME		"mips64"
+#endif
+#endif
+#define LJ_ARCH_ENDIAN		LUAJIT_BE
+#endif
+
+#if !defined(LJ_ARCH_HASFPU)
+#ifdef __mips_soft_float
+#define LJ_ARCH_HASFPU		0
+#else
+#define LJ_ARCH_HASFPU		1
+#endif
+#endif
+
+#if !defined(LJ_ABI_SOFTFP)
+#ifdef __mips_soft_float
+#define LJ_ABI_SOFTFP		1
+#else
+#define LJ_ABI_SOFTFP		0
+#endif
+#endif
+
+#if LUAJIT_TARGET == LUAJIT_ARCH_MIPS32
+#define LJ_ARCH_BITS		32
+#define LJ_TARGET_MIPS32	1
+#else
+#define LJ_ARCH_BITS		64
+#define LJ_TARGET_MIPS64	1
+#define LJ_TARGET_GC64		1
+#endif
+#define LJ_TARGET_MIPS		1
+#define LJ_TARGET_EHRETREG	4
+#define LJ_TARGET_EHRAREG	31
+#define LJ_TARGET_JUMPRANGE	27	/* 2*2^27 = 256MB-aligned region */
+#define LJ_TARGET_MASKSHIFT	1
+#define LJ_TARGET_MASKROT	1
+#define LJ_TARGET_UNIFYROT	2	/* Want only IR_BROR. */
+#define LJ_ARCH_NUMMODE		LJ_NUMMODE_DUAL
+
+#if LJ_TARGET_MIPSR6
+#define LJ_ARCH_VERSION		60
+#elif _MIPS_ARCH_MIPS32R2 || _MIPS_ARCH_MIPS64R2
+#define LJ_ARCH_VERSION		20
+#else
+#define LJ_ARCH_VERSION		10
+#endif
+
+#else
+#error "No target architecture defined"
+#endif
+
+/* -- Checks for requirements --------------------------------------------- */
+
+/* Check for minimum required compiler versions. */
+#if defined(__GNUC__)
+#if LJ_TARGET_X86
+#if (__GNUC__ < 3) || ((__GNUC__ == 3) && __GNUC_MINOR__ < 4)
+#error "Need at least GCC 3.4 or newer"
+#endif
+#elif LJ_TARGET_X64
+#if __GNUC__ < 4
+#error "Need at least GCC 4.0 or newer"
+#endif
+#elif LJ_TARGET_ARM
+#if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 2)
+#error "Need at least GCC 4.2 or newer"
+#endif
+#elif LJ_TARGET_ARM64
+#if __clang__
+#if ((__clang_major__ < 3) || ((__clang_major__ == 3) && __clang_minor__ < 5)) && !defined(__NX_TOOLCHAIN_MAJOR__)
+#error "Need at least Clang 3.5 or newer"
+#endif
+#else
+#if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 8)
+#error "Need at least GCC 4.8 or newer"
+#endif
+#endif
+#elif !LJ_TARGET_PS3
+#if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 3)
+#error "Need at least GCC 4.3 or newer"
+#endif
+#endif
+#endif
+
+/* Check target-specific constraints. */
+#ifndef _BUILDVM_H
+#if LJ_TARGET_X64
+#if __USING_SJLJ_EXCEPTIONS__
+#error "Need a C compiler with native exception handling on x64"
+#endif
+#elif LJ_TARGET_ARM
+#if defined(__ARMEB__)
+#error "No support for big-endian ARM"
+#endif
+#if __ARM_ARCH_6M__ || __ARM_ARCH_7M__ || __ARM_ARCH_7EM__
+#error "No support for Cortex-M CPUs"
+#endif
+#if !(__ARM_EABI__ || LJ_TARGET_IOS)
+#error "Only ARM EABI or iOS 3.0+ ABI is supported"
+#endif
+#elif LJ_TARGET_ARM64
+#if defined(_ILP32)
+#error "No support for ILP32 model on ARM64"
+#endif
+#elif LJ_TARGET_PPC
+#if defined(_LITTLE_ENDIAN) && (!defined(_BYTE_ORDER) || (_BYTE_ORDER == _LITTLE_ENDIAN))
+#error "No support for little-endian PPC32"
+#endif
+#if defined(__NO_FPRS__) && !defined(_SOFT_FLOAT)
+#error "No support for PPC/e500 anymore (use LuaJIT 2.0)"
+#endif
+#elif LJ_TARGET_MIPS32
+#if !((defined(_MIPS_SIM_ABI32) && _MIPS_SIM == _MIPS_SIM_ABI32) || (defined(_ABIO32) && _MIPS_SIM == _ABIO32))
+#error "Only o32 ABI supported for MIPS32"
+#endif
+#if LJ_TARGET_MIPSR6
+/* Not that useful, since most available r6 CPUs are 64 bit. */
+#error "No support for MIPS32R6"
+#endif
+#elif LJ_TARGET_MIPS64
+#if !((defined(_MIPS_SIM_ABI64) && _MIPS_SIM == _MIPS_SIM_ABI64) || (defined(_ABI64) && _MIPS_SIM == _ABI64))
+/* MIPS32ON64 aka n32 ABI support might be desirable, but difficult. */
+#error "Only n64 ABI supported for MIPS64"
+#endif
+#endif
+#endif
+
+/* -- Derived defines ----------------------------------------------------- */
+
+/* Enable or disable the dual-number mode for the VM. */
+#if (LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE && LUAJIT_NUMMODE == 2) || \
+    (LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL && LUAJIT_NUMMODE == 1)
+#error "No support for this number mode on this architecture"
+#endif
+#if LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL || \
+    (LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL_SINGLE && LUAJIT_NUMMODE != 1) || \
+    (LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE_DUAL && LUAJIT_NUMMODE == 2)
+#define LJ_DUALNUM		1
+#else
+#define LJ_DUALNUM		0
+#endif
+
+#if LJ_TARGET_IOS || LJ_TARGET_CONSOLE
+/* Runtime code generation is restricted on iOS. Complain to Apple, not me. */
+/* Ditto for the consoles. Complain to Sony or MS, not me. */
+#ifndef LUAJIT_ENABLE_JIT
+#define LJ_OS_NOJIT		1
+#endif
+#endif
+
+/* 64 bit GC references. */
+#if LJ_TARGET_GC64
+#define LJ_GC64			1
+#else
+#define LJ_GC64			0
+#endif
+
+/* 2-slot frame info. */
+#if LJ_GC64
+#define LJ_FR2			1
+#else
+#define LJ_FR2			0
+#endif
+
+/* Disable or enable the JIT compiler. */
+#if defined(LUAJIT_DISABLE_JIT) || defined(LJ_ARCH_NOJIT) || defined(LJ_OS_NOJIT)
+#define LJ_HASJIT		0
+#else
+#define LJ_HASJIT		1
+#endif
+
+/* Disable or enable the FFI extension. */
+#if defined(LUAJIT_DISABLE_FFI) || defined(LJ_ARCH_NOFFI)
+#define LJ_HASFFI		0
+#else
+#define LJ_HASFFI		1
+#endif
+
+/* Disable or enable the string buffer extension. */
+#if defined(LUAJIT_DISABLE_BUFFER)
+#define LJ_HASBUFFER		0
+#else
+#define LJ_HASBUFFER		1
+#endif
+
+#if defined(LUAJIT_DISABLE_PROFILE)
+#define LJ_HASPROFILE		0
+#elif LJ_TARGET_POSIX
+#define LJ_HASPROFILE		1
+#define LJ_PROFILE_SIGPROF	1
+#elif LJ_TARGET_PS3
+#define LJ_HASPROFILE		1
+#define LJ_PROFILE_PTHREAD	1
+#elif LJ_TARGET_WINDOWS || LJ_TARGET_XBOX360
+#define LJ_HASPROFILE		1
+#define LJ_PROFILE_WTHREAD	1
+#else
+#define LJ_HASPROFILE		0
+#endif
+
+#ifndef LJ_ARCH_HASFPU
+#define LJ_ARCH_HASFPU		1
+#endif
+#ifndef LJ_ABI_SOFTFP
+#define LJ_ABI_SOFTFP		0
+#endif
+#define LJ_SOFTFP		(!LJ_ARCH_HASFPU)
+#define LJ_SOFTFP32		(LJ_SOFTFP && LJ_32)
+
+#if LJ_ARCH_ENDIAN == LUAJIT_BE
+#define LJ_LE			0
+#define LJ_BE			1
+#define LJ_ENDIAN_SELECT(le, be)	be
+#define LJ_ENDIAN_LOHI(lo, hi)		hi lo
+#else
+#define LJ_LE			1
+#define LJ_BE			0
+#define LJ_ENDIAN_SELECT(le, be)	le
+#define LJ_ENDIAN_LOHI(lo, hi)		lo hi
+#endif
+
+#if LJ_ARCH_BITS == 32
+#define LJ_32			1
+#define LJ_64			0
+#else
+#define LJ_32			0
+#define LJ_64			1
+#endif
+
+#ifndef LJ_TARGET_UNALIGNED
+#define LJ_TARGET_UNALIGNED	0
+#endif
+
+#ifndef LJ_PAGESIZE
+#define LJ_PAGESIZE		4096
+#endif
+
+/* Various workarounds for embedded operating systems or weak C runtimes. */
+#if defined(__ANDROID__) || defined(__symbian__) || LJ_TARGET_XBOX360 || LJ_TARGET_WINDOWS
+#define LUAJIT_NO_LOG2
+#endif
+#if LJ_TARGET_CONSOLE || (LJ_TARGET_IOS && __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0)
+#define LJ_NO_SYSTEM		1
+#endif
+
+#if LJ_TARGET_WINDOWS || LJ_TARGET_CYGWIN
+#define LJ_ABI_WIN		1
+#else
+#define LJ_ABI_WIN		0
+#endif
+
+#if LJ_TARGET_WINDOWS
+#if LJ_TARGET_UWP
+#define LJ_WIN_VALLOC	VirtualAllocFromApp
+#define LJ_WIN_VPROTECT	VirtualProtectFromApp
+extern void *LJ_WIN_LOADLIBA(const char *path);
+#else
+#define LJ_WIN_VALLOC	VirtualAlloc
+#define LJ_WIN_VPROTECT	VirtualProtect
+#define LJ_WIN_LOADLIBA(path)	LoadLibraryExA((path), NULL, 0)
+#endif
+#endif
+
+#if defined(LUAJIT_NO_UNWIND) || __GNU_COMPACT_EH__ || defined(__symbian__) || LJ_TARGET_IOS || LJ_TARGET_PS3 || LJ_TARGET_PS4 || LJ_TARGET_PS5
+#define LJ_NO_UNWIND		1
+#endif
+
+#if !LJ_NO_UNWIND && !defined(LUAJIT_UNWIND_INTERNAL) && (LJ_ABI_WIN || (defined(LUAJIT_UNWIND_EXTERNAL) && (defined(__GNUC__) || defined(__clang__))))
+#define LJ_UNWIND_EXT		1
+#else
+#define LJ_UNWIND_EXT		0
+#endif
+
+#if LJ_UNWIND_EXT && LJ_HASJIT && !LJ_TARGET_ARM && !(LJ_ABI_WIN && LJ_TARGET_X86)
+#define LJ_UNWIND_JIT		1
+#else
+#define LJ_UNWIND_JIT		0
+#endif
+
+/* Compatibility with Lua 5.1 vs. 5.2. */
+#ifdef LUAJIT_ENABLE_LUA52COMPAT
+#define LJ_52			1
+#else
+#define LJ_52			0
+#endif
+
+/* -- VM security --------------------------------------------------------- */
+
+/* Don't make any changes here. Instead build with:
+**   make "XCFLAGS=-DLUAJIT_SECURITY_flag=value"
+**
+** Important note to distro maintainers: DO NOT change the defaults for a
+** regular distro build -- neither upwards, nor downwards!
+** These build-time configurable security flags are intended for embedders
+** who may have specific needs wrt. security vs. performance.
+*/
+
+/* Security defaults. */
+#ifndef LUAJIT_SECURITY_PRNG
+/* PRNG init: 0 = fixed/insecure, 1 = secure from OS. */
+#define LUAJIT_SECURITY_PRNG	1
+#endif
+
+#ifndef LUAJIT_SECURITY_STRHASH
+/* String hash: 0 = sparse only, 1 = sparse + dense. */
+#define LUAJIT_SECURITY_STRHASH	1
+#endif
+
+#ifndef LUAJIT_SECURITY_STRID
+/* String IDs: 0 = linear, 1 = reseed < 255, 2 = reseed < 15, 3 = random. */
+#define LUAJIT_SECURITY_STRID	1
+#endif
+
+#ifndef LUAJIT_SECURITY_MCODE
+/* Machine code page protection: 0 = insecure RWX, 1 = secure RW^X. */
+#define LUAJIT_SECURITY_MCODE	1
+#endif
+
+#define LJ_SECURITY_MODE \
+  ( 0u \
+  | ((LUAJIT_SECURITY_PRNG & 3) << 0) \
+  | ((LUAJIT_SECURITY_STRHASH & 3) << 2) \
+  | ((LUAJIT_SECURITY_STRID & 3) << 4) \
+  | ((LUAJIT_SECURITY_MCODE & 3) << 6) \
+  )
+#define LJ_SECURITY_MODESTRING \
+  "\004prng\007strhash\005strid\005mcode"
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_asm.c b/libs/luajit-cmake/luajit/src/lj_asm.c
new file mode 100644
index 0000000..6f5e0c4
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_asm.c
@@ -0,0 +1,2571 @@
+/*
+** IR assembler (SSA IR -> machine code).
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_asm_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_gc.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_frame.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#endif
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_ircall.h"
+#include "lj_iropt.h"
+#include "lj_mcode.h"
+#include "lj_trace.h"
+#include "lj_snap.h"
+#include "lj_asm.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+#include "lj_target.h"
+
+#ifdef LUA_USE_ASSERT
+#include <stdio.h>
+#endif
+
+/* -- Assembler state and common macros ----------------------------------- */
+
+/* Assembler state. */
+typedef struct ASMState {
+  RegCost cost[RID_MAX];  /* Reference and blended allocation cost for regs. */
+
+  MCode *mcp;		/* Current MCode pointer (grows down). */
+  MCode *mclim;		/* Lower limit for MCode memory + red zone. */
+#ifdef LUA_USE_ASSERT
+  MCode *mcp_prev;	/* Red zone overflow check. */
+#endif
+
+  IRIns *ir;		/* Copy of pointer to IR instructions/constants. */
+  jit_State *J;		/* JIT compiler state. */
+
+#if LJ_TARGET_X86ORX64
+  x86ModRM mrm;		/* Fused x86 address operand. */
+#endif
+
+  RegSet freeset;	/* Set of free registers. */
+  RegSet modset;	/* Set of registers modified inside the loop. */
+  RegSet weakset;	/* Set of weakly referenced registers. */
+  RegSet phiset;	/* Set of PHI registers. */
+
+  uint32_t flags;	/* Copy of JIT compiler flags. */
+  int loopinv;		/* Loop branch inversion (0:no, 1:yes, 2:yes+CC_P). */
+
+  int32_t evenspill;	/* Next even spill slot. */
+  int32_t oddspill;	/* Next odd spill slot (or 0). */
+
+  IRRef curins;		/* Reference of current instruction. */
+  IRRef stopins;	/* Stop assembly before hitting this instruction. */
+  IRRef orignins;	/* Original T->nins. */
+
+  IRRef snapref;	/* Current snapshot is active after this reference. */
+  IRRef snaprename;	/* Rename highwater mark for snapshot check. */
+  SnapNo snapno;	/* Current snapshot number. */
+  SnapNo loopsnapno;	/* Loop snapshot number. */
+  int snapalloc;	/* Current snapshot needs allocation. */
+  BloomFilter snapfilt1, snapfilt2;	/* Filled with snapshot refs. */
+
+  IRRef fuseref;	/* Fusion limit (loopref, 0 or FUSE_DISABLED). */
+  IRRef sectref;	/* Section base reference (loopref or 0). */
+  IRRef loopref;	/* Reference of LOOP instruction (or 0). */
+
+  BCReg topslot;	/* Number of slots for stack check (unless 0). */
+  int32_t gcsteps;	/* Accumulated number of GC steps (per section). */
+
+  GCtrace *T;		/* Trace to assemble. */
+  GCtrace *parent;	/* Parent trace (or NULL). */
+
+  MCode *mcbot;		/* Bottom of reserved MCode. */
+  MCode *mctop;		/* Top of generated MCode. */
+  MCode *mctoporig;	/* Original top of generated MCode. */
+  MCode *mcloop;	/* Pointer to loop MCode (or NULL). */
+  MCode *invmcp;	/* Points to invertible loop branch (or NULL). */
+  MCode *flagmcp;	/* Pending opportunity to merge flag setting ins. */
+  MCode *realign;	/* Realign loop if not NULL. */
+
+#ifdef RID_NUM_KREF
+  intptr_t krefk[RID_NUM_KREF];
+#endif
+  IRRef1 phireg[RID_MAX];  /* PHI register references. */
+  uint16_t parentmap[LJ_MAX_JSLOTS];  /* Parent instruction to RegSP map. */
+} ASMState;
+
+#ifdef LUA_USE_ASSERT
+#define lj_assertA(c, ...)	lj_assertG_(J2G(as->J), (c), __VA_ARGS__)
+#else
+#define lj_assertA(c, ...)	((void)as)
+#endif
+
+#define IR(ref)			(&as->ir[(ref)])
+
+#define ASMREF_TMP1		REF_TRUE	/* Temp. register. */
+#define ASMREF_TMP2		REF_FALSE	/* Temp. register. */
+#define ASMREF_L		REF_NIL		/* Stores register for L. */
+
+/* Check for variant to invariant references. */
+#define iscrossref(as, ref)	((ref) < as->sectref)
+
+/* Inhibit memory op fusion from variant to invariant references. */
+#define FUSE_DISABLED		(~(IRRef)0)
+#define mayfuse(as, ref)	((ref) > as->fuseref)
+#define neverfuse(as)		(as->fuseref == FUSE_DISABLED)
+#define canfuse(as, ir)		(!neverfuse(as) && !irt_isphi((ir)->t))
+#define opisfusableload(o) \
+  ((o) == IR_ALOAD || (o) == IR_HLOAD || (o) == IR_ULOAD || \
+   (o) == IR_FLOAD || (o) == IR_XLOAD || (o) == IR_SLOAD || (o) == IR_VLOAD)
+
+/* Sparse limit checks using a red zone before the actual limit. */
+#define MCLIM_REDZONE	64
+
+static LJ_NORET LJ_NOINLINE void asm_mclimit(ASMState *as)
+{
+  lj_mcode_limiterr(as->J, (size_t)(as->mctop - as->mcp + 4*MCLIM_REDZONE));
+}
+
+static LJ_AINLINE void checkmclim(ASMState *as)
+{
+#ifdef LUA_USE_ASSERT
+  if (as->mcp + MCLIM_REDZONE < as->mcp_prev) {
+    IRIns *ir = IR(as->curins+1);
+    lj_assertA(0, "red zone overflow: %p IR %04d  %02d %04d %04d\n", as->mcp,
+      as->curins+1-REF_BIAS, ir->o, ir->op1-REF_BIAS, ir->op2-REF_BIAS);
+  }
+#endif
+  if (LJ_UNLIKELY(as->mcp < as->mclim)) asm_mclimit(as);
+#ifdef LUA_USE_ASSERT
+  as->mcp_prev = as->mcp;
+#endif
+}
+
+#ifdef RID_NUM_KREF
+#define ra_iskref(ref)		((ref) < RID_NUM_KREF)
+#define ra_krefreg(ref)		((Reg)(RID_MIN_KREF + (Reg)(ref)))
+#define ra_krefk(as, ref)	(as->krefk[(ref)])
+
+static LJ_AINLINE void ra_setkref(ASMState *as, Reg r, intptr_t k)
+{
+  IRRef ref = (IRRef)(r - RID_MIN_KREF);
+  as->krefk[ref] = k;
+  as->cost[r] = REGCOST(ref, ref);
+}
+
+#else
+#define ra_iskref(ref)		0
+#define ra_krefreg(ref)		RID_MIN_GPR
+#define ra_krefk(as, ref)	0
+#endif
+
+/* Arch-specific field offsets. */
+static const uint8_t field_ofs[IRFL__MAX+1] = {
+#define FLOFS(name, ofs)	(uint8_t)(ofs),
+IRFLDEF(FLOFS)
+#undef FLOFS
+  0
+};
+
+/* -- Target-specific instruction emitter --------------------------------- */
+
+#if LJ_TARGET_X86ORX64
+#include "lj_emit_x86.h"
+#elif LJ_TARGET_ARM
+#include "lj_emit_arm.h"
+#elif LJ_TARGET_ARM64
+#include "lj_emit_arm64.h"
+#elif LJ_TARGET_PPC
+#include "lj_emit_ppc.h"
+#elif LJ_TARGET_MIPS
+#include "lj_emit_mips.h"
+#else
+#error "Missing instruction emitter for target CPU"
+#endif
+
+/* Generic load/store of register from/to stack slot. */
+#define emit_spload(as, ir, r, ofs) \
+  emit_loadofs(as, ir, (r), RID_SP, (ofs))
+#define emit_spstore(as, ir, r, ofs) \
+  emit_storeofs(as, ir, (r), RID_SP, (ofs))
+
+/* -- Register allocator debugging ---------------------------------------- */
+
+/* #define LUAJIT_DEBUG_RA */
+
+#ifdef LUAJIT_DEBUG_RA
+
+#include <stdio.h>
+#include <stdarg.h>
+
+#define RIDNAME(name)	#name,
+static const char *const ra_regname[] = {
+  GPRDEF(RIDNAME)
+  FPRDEF(RIDNAME)
+  VRIDDEF(RIDNAME)
+  NULL
+};
+#undef RIDNAME
+
+static char ra_dbg_buf[65536];
+static char *ra_dbg_p;
+static char *ra_dbg_merge;
+static MCode *ra_dbg_mcp;
+
+static void ra_dstart(void)
+{
+  ra_dbg_p = ra_dbg_buf;
+  ra_dbg_merge = NULL;
+  ra_dbg_mcp = NULL;
+}
+
+static void ra_dflush(void)
+{
+  fwrite(ra_dbg_buf, 1, (size_t)(ra_dbg_p-ra_dbg_buf), stdout);
+  ra_dstart();
+}
+
+static void ra_dprintf(ASMState *as, const char *fmt, ...)
+{
+  char *p;
+  va_list argp;
+  va_start(argp, fmt);
+  p = ra_dbg_mcp == as->mcp ? ra_dbg_merge : ra_dbg_p;
+  ra_dbg_mcp = NULL;
+  p += sprintf(p, "%08x  \e[36m%04d ", (uintptr_t)as->mcp, as->curins-REF_BIAS);
+  for (;;) {
+    const char *e = strchr(fmt, '$');
+    if (e == NULL) break;
+    memcpy(p, fmt, (size_t)(e-fmt));
+    p += e-fmt;
+    if (e[1] == 'r') {
+      Reg r = va_arg(argp, Reg) & RID_MASK;
+      if (r <= RID_MAX) {
+	const char *q;
+	for (q = ra_regname[r]; *q; q++)
+	  *p++ = *q >= 'A' && *q <= 'Z' ? *q + 0x20 : *q;
+      } else {
+	*p++ = '?';
+	lj_assertA(0, "bad register %d for debug format \"%s\"", r, fmt);
+      }
+    } else if (e[1] == 'f' || e[1] == 'i') {
+      IRRef ref;
+      if (e[1] == 'f')
+	ref = va_arg(argp, IRRef);
+      else
+	ref = va_arg(argp, IRIns *) - as->ir;
+      if (ref >= REF_BIAS)
+	p += sprintf(p, "%04d", ref - REF_BIAS);
+      else
+	p += sprintf(p, "K%03d", REF_BIAS - ref);
+    } else if (e[1] == 's') {
+      uint32_t slot = va_arg(argp, uint32_t);
+      p += sprintf(p, "[sp+0x%x]", sps_scale(slot));
+    } else if (e[1] == 'x') {
+      p += sprintf(p, "%08x", va_arg(argp, int32_t));
+    } else {
+      lj_assertA(0, "bad debug format code");
+    }
+    fmt = e+2;
+  }
+  va_end(argp);
+  while (*fmt)
+    *p++ = *fmt++;
+  *p++ = '\e'; *p++ = '['; *p++ = 'm'; *p++ = '\n';
+  if (p > ra_dbg_buf+sizeof(ra_dbg_buf)-256) {
+    fwrite(ra_dbg_buf, 1, (size_t)(p-ra_dbg_buf), stdout);
+    p = ra_dbg_buf;
+  }
+  ra_dbg_p = p;
+}
+
+#define RA_DBG_START()	ra_dstart()
+#define RA_DBG_FLUSH()	ra_dflush()
+#define RA_DBG_REF() \
+  do { char *_p = ra_dbg_p; ra_dprintf(as, ""); \
+       ra_dbg_merge = _p; ra_dbg_mcp = as->mcp; } while (0)
+#define RA_DBGX(x)	ra_dprintf x
+
+#else
+#define RA_DBG_START()	((void)0)
+#define RA_DBG_FLUSH()	((void)0)
+#define RA_DBG_REF()	((void)0)
+#define RA_DBGX(x)	((void)0)
+#endif
+
+/* -- Register allocator -------------------------------------------------- */
+
+#define ra_free(as, r)		rset_set(as->freeset, (r))
+#define ra_modified(as, r)	rset_set(as->modset, (r))
+#define ra_weak(as, r)		rset_set(as->weakset, (r))
+#define ra_noweak(as, r)	rset_clear(as->weakset, (r))
+
+#define ra_used(ir)		(ra_hasreg((ir)->r) || ra_hasspill((ir)->s))
+
+/* Setup register allocator. */
+static void ra_setup(ASMState *as)
+{
+  Reg r;
+  /* Initially all regs (except the stack pointer) are free for use. */
+  as->freeset = RSET_INIT;
+  as->modset = RSET_EMPTY;
+  as->weakset = RSET_EMPTY;
+  as->phiset = RSET_EMPTY;
+  memset(as->phireg, 0, sizeof(as->phireg));
+  for (r = RID_MIN_GPR; r < RID_MAX; r++)
+    as->cost[r] = REGCOST(~0u, 0u);
+}
+
+/* Rematerialize constants. */
+static Reg ra_rematk(ASMState *as, IRRef ref)
+{
+  IRIns *ir;
+  Reg r;
+  if (ra_iskref(ref)) {
+    r = ra_krefreg(ref);
+    lj_assertA(!rset_test(as->freeset, r), "rematk of free reg %d", r);
+    ra_free(as, r);
+    ra_modified(as, r);
+#if LJ_64
+    emit_loadu64(as, r, ra_krefk(as, ref));
+#else
+    emit_loadi(as, r, ra_krefk(as, ref));
+#endif
+    return r;
+  }
+  ir = IR(ref);
+  r = ir->r;
+  lj_assertA(ra_hasreg(r), "rematk of K%03d has no reg", REF_BIAS - ref);
+  lj_assertA(!ra_hasspill(ir->s),
+	     "rematk of K%03d has spill slot [%x]", REF_BIAS - ref, ir->s);
+  ra_free(as, r);
+  ra_modified(as, r);
+  ir->r = RID_INIT;  /* Do not keep any hint. */
+  RA_DBGX((as, "remat     $i $r", ir, r));
+#if !LJ_SOFTFP32
+  if (ir->o == IR_KNUM) {
+    emit_loadk64(as, r, ir);
+  } else
+#endif
+  if (emit_canremat(REF_BASE) && ir->o == IR_BASE) {
+    ra_sethint(ir->r, RID_BASE);  /* Restore BASE register hint. */
+    emit_getgl(as, r, jit_base);
+  } else if (emit_canremat(ASMREF_L) && ir->o == IR_KPRI) {
+    /* REF_NIL stores ASMREF_L register. */
+    lj_assertA(irt_isnil(ir->t), "rematk of bad ASMREF_L");
+    emit_getgl(as, r, cur_L);
+#if LJ_64
+  } else if (ir->o == IR_KINT64) {
+    emit_loadu64(as, r, ir_kint64(ir)->u64);
+#if LJ_GC64
+  } else if (ir->o == IR_KGC) {
+    emit_loadu64(as, r, (uintptr_t)ir_kgc(ir));
+  } else if (ir->o == IR_KPTR || ir->o == IR_KKPTR) {
+    emit_loadu64(as, r, (uintptr_t)ir_kptr(ir));
+#endif
+#endif
+  } else {
+    lj_assertA(ir->o == IR_KINT || ir->o == IR_KGC ||
+	       ir->o == IR_KPTR || ir->o == IR_KKPTR || ir->o == IR_KNULL,
+	       "rematk of bad IR op %d", ir->o);
+    emit_loadi(as, r, ir->i);
+  }
+  return r;
+}
+
+/* Force a spill. Allocate a new spill slot if needed. */
+static int32_t ra_spill(ASMState *as, IRIns *ir)
+{
+  int32_t slot = ir->s;
+  lj_assertA(ir >= as->ir + REF_TRUE,
+	     "spill of K%03d", REF_BIAS - (int)(ir - as->ir));
+  if (!ra_hasspill(slot)) {
+    if (irt_is64(ir->t)) {
+      slot = as->evenspill;
+      as->evenspill += 2;
+    } else if (as->oddspill) {
+      slot = as->oddspill;
+      as->oddspill = 0;
+    } else {
+      slot = as->evenspill;
+      as->oddspill = slot+1;
+      as->evenspill += 2;
+    }
+    if (as->evenspill > 256)
+      lj_trace_err(as->J, LJ_TRERR_SPILLOV);
+    ir->s = (uint8_t)slot;
+  }
+  return sps_scale(slot);
+}
+
+/* Release the temporarily allocated register in ASMREF_TMP1/ASMREF_TMP2. */
+static Reg ra_releasetmp(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  Reg r = ir->r;
+  lj_assertA(ra_hasreg(r), "release of TMP%d has no reg", ref-ASMREF_TMP1+1);
+  lj_assertA(!ra_hasspill(ir->s),
+	     "release of TMP%d has spill slot [%x]", ref-ASMREF_TMP1+1, ir->s);
+  ra_free(as, r);
+  ra_modified(as, r);
+  ir->r = RID_INIT;
+  return r;
+}
+
+/* Restore a register (marked as free). Rematerialize or force a spill. */
+static Reg ra_restore(ASMState *as, IRRef ref)
+{
+  if (emit_canremat(ref)) {
+    return ra_rematk(as, ref);
+  } else {
+    IRIns *ir = IR(ref);
+    int32_t ofs = ra_spill(as, ir);  /* Force a spill slot. */
+    Reg r = ir->r;
+    lj_assertA(ra_hasreg(r), "restore of IR %04d has no reg", ref - REF_BIAS);
+    ra_sethint(ir->r, r);  /* Keep hint. */
+    ra_free(as, r);
+    if (!rset_test(as->weakset, r)) {  /* Only restore non-weak references. */
+      ra_modified(as, r);
+      RA_DBGX((as, "restore   $i $r", ir, r));
+      emit_spload(as, ir, r, ofs);
+    }
+    return r;
+  }
+}
+
+/* Save a register to a spill slot. */
+static void ra_save(ASMState *as, IRIns *ir, Reg r)
+{
+  RA_DBGX((as, "save      $i $r", ir, r));
+  emit_spstore(as, ir, r, sps_scale(ir->s));
+}
+
+#define MINCOST(name) \
+  if (rset_test(RSET_ALL, RID_##name) && \
+      LJ_LIKELY(allow&RID2RSET(RID_##name)) && as->cost[RID_##name] < cost) \
+    cost = as->cost[RID_##name];
+
+/* Evict the register with the lowest cost, forcing a restore. */
+static Reg ra_evict(ASMState *as, RegSet allow)
+{
+  IRRef ref;
+  RegCost cost = ~(RegCost)0;
+  lj_assertA(allow != RSET_EMPTY, "evict from empty set");
+  if (RID_NUM_FPR == 0 || allow < RID2RSET(RID_MAX_GPR)) {
+    GPRDEF(MINCOST)
+  } else {
+    FPRDEF(MINCOST)
+  }
+  ref = regcost_ref(cost);
+  lj_assertA(ra_iskref(ref) || (ref >= as->T->nk && ref < as->T->nins),
+	     "evict of out-of-range IR %04d", ref - REF_BIAS);
+  /* Preferably pick any weak ref instead of a non-weak, non-const ref. */
+  if (!irref_isk(ref) && (as->weakset & allow)) {
+    IRIns *ir = IR(ref);
+    if (!rset_test(as->weakset, ir->r))
+      ref = regcost_ref(as->cost[rset_pickbot((as->weakset & allow))]);
+  }
+  return ra_restore(as, ref);
+}
+
+/* Pick any register (marked as free). Evict on-demand. */
+static Reg ra_pick(ASMState *as, RegSet allow)
+{
+  RegSet pick = as->freeset & allow;
+  if (!pick)
+    return ra_evict(as, allow);
+  else
+    return rset_picktop(pick);
+}
+
+/* Get a scratch register (marked as free). */
+static Reg ra_scratch(ASMState *as, RegSet allow)
+{
+  Reg r = ra_pick(as, allow);
+  ra_modified(as, r);
+  RA_DBGX((as, "scratch        $r", r));
+  return r;
+}
+
+/* Evict all registers from a set (if not free). */
+static void ra_evictset(ASMState *as, RegSet drop)
+{
+  RegSet work;
+  as->modset |= drop;
+#if !LJ_SOFTFP
+  work = (drop & ~as->freeset) & RSET_FPR;
+  while (work) {
+    Reg r = rset_pickbot(work);
+    ra_restore(as, regcost_ref(as->cost[r]));
+    rset_clear(work, r);
+    checkmclim(as);
+  }
+#endif
+  work = (drop & ~as->freeset);
+  while (work) {
+    Reg r = rset_pickbot(work);
+    ra_restore(as, regcost_ref(as->cost[r]));
+    rset_clear(work, r);
+    checkmclim(as);
+  }
+}
+
+/* Evict (rematerialize) all registers allocated to constants. */
+static void ra_evictk(ASMState *as)
+{
+  RegSet work;
+#if !LJ_SOFTFP
+  work = ~as->freeset & RSET_FPR;
+  while (work) {
+    Reg r = rset_pickbot(work);
+    IRRef ref = regcost_ref(as->cost[r]);
+    if (emit_canremat(ref) && irref_isk(ref)) {
+      ra_rematk(as, ref);
+      checkmclim(as);
+    }
+    rset_clear(work, r);
+  }
+#endif
+  work = ~as->freeset & RSET_GPR;
+  while (work) {
+    Reg r = rset_pickbot(work);
+    IRRef ref = regcost_ref(as->cost[r]);
+    if (emit_canremat(ref) && irref_isk(ref)) {
+      ra_rematk(as, ref);
+      checkmclim(as);
+    }
+    rset_clear(work, r);
+  }
+}
+
+#ifdef RID_NUM_KREF
+/* Allocate a register for a constant. */
+static Reg ra_allock(ASMState *as, intptr_t k, RegSet allow)
+{
+  /* First try to find a register which already holds the same constant. */
+  RegSet pick, work = ~as->freeset & RSET_GPR;
+  Reg r;
+  while (work) {
+    IRRef ref;
+    r = rset_pickbot(work);
+    ref = regcost_ref(as->cost[r]);
+#if LJ_64
+    if (ref < ASMREF_L) {
+      if (ra_iskref(ref)) {
+	if (k == ra_krefk(as, ref))
+	  return r;
+      } else {
+	IRIns *ir = IR(ref);
+	if ((ir->o == IR_KINT64 && k == (int64_t)ir_kint64(ir)->u64) ||
+#if LJ_GC64
+	    (ir->o == IR_KINT && k == ir->i) ||
+	    (ir->o == IR_KGC && k == (intptr_t)ir_kgc(ir)) ||
+	    ((ir->o == IR_KPTR || ir->o == IR_KKPTR) &&
+	     k == (intptr_t)ir_kptr(ir))
+#else
+	    (ir->o != IR_KINT64 && k == ir->i)
+#endif
+	   )
+	  return r;
+      }
+    }
+#else
+    if (ref < ASMREF_L &&
+	k == (ra_iskref(ref) ? ra_krefk(as, ref) : IR(ref)->i))
+      return r;
+#endif
+    rset_clear(work, r);
+  }
+  pick = as->freeset & allow;
+  if (pick) {
+    /* Constants should preferably get unmodified registers. */
+    if ((pick & ~as->modset))
+      pick &= ~as->modset;
+    r = rset_pickbot(pick);  /* Reduce conflicts with inverse allocation. */
+  } else {
+    r = ra_evict(as, allow);
+  }
+  RA_DBGX((as, "allock    $x $r", k, r));
+  ra_setkref(as, r, k);
+  rset_clear(as->freeset, r);
+  ra_noweak(as, r);
+  return r;
+}
+
+/* Allocate a specific register for a constant. */
+static void ra_allockreg(ASMState *as, intptr_t k, Reg r)
+{
+  Reg kr = ra_allock(as, k, RID2RSET(r));
+  if (kr != r) {
+    IRIns irdummy;
+    irdummy.t.irt = IRT_INT;
+    ra_scratch(as, RID2RSET(r));
+    emit_movrr(as, &irdummy, r, kr);
+  }
+}
+#else
+#define ra_allockreg(as, k, r)		emit_loadi(as, (r), (k))
+#endif
+
+/* Allocate a register for ref from the allowed set of registers.
+** Note: this function assumes the ref does NOT have a register yet!
+** Picks an optimal register, sets the cost and marks the register as non-free.
+*/
+static Reg ra_allocref(ASMState *as, IRRef ref, RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  RegSet pick = as->freeset & allow;
+  Reg r;
+  lj_assertA(ra_noreg(ir->r),
+	     "IR %04d already has reg %d", ref - REF_BIAS, ir->r);
+  if (pick) {
+    /* First check register hint from propagation or PHI. */
+    if (ra_hashint(ir->r)) {
+      r = ra_gethint(ir->r);
+      if (rset_test(pick, r))  /* Use hint register if possible. */
+	goto found;
+      /* Rematerialization is cheaper than missing a hint. */
+      if (rset_test(allow, r) && emit_canremat(regcost_ref(as->cost[r]))) {
+	ra_rematk(as, regcost_ref(as->cost[r]));
+	goto found;
+      }
+      RA_DBGX((as, "hintmiss  $f $r", ref, r));
+    }
+    /* Invariants should preferably get unmodified registers. */
+    if (ref < as->loopref && !irt_isphi(ir->t)) {
+      if ((pick & ~as->modset))
+	pick &= ~as->modset;
+      r = rset_pickbot(pick);  /* Reduce conflicts with inverse allocation. */
+    } else {
+      /* We've got plenty of regs, so get callee-save regs if possible. */
+      if (RID_NUM_GPR > 8 && (pick & ~RSET_SCRATCH))
+	pick &= ~RSET_SCRATCH;
+      r = rset_picktop(pick);
+    }
+  } else {
+    r = ra_evict(as, allow);
+  }
+found:
+  RA_DBGX((as, "alloc     $f $r", ref, r));
+  ir->r = (uint8_t)r;
+  rset_clear(as->freeset, r);
+  ra_noweak(as, r);
+  as->cost[r] = REGCOST_REF_T(ref, irt_t(ir->t));
+  return r;
+}
+
+/* Allocate a register on-demand. */
+static Reg ra_alloc1(ASMState *as, IRRef ref, RegSet allow)
+{
+  Reg r = IR(ref)->r;
+  /* Note: allow is ignored if the register is already allocated. */
+  if (ra_noreg(r)) r = ra_allocref(as, ref, allow);
+  ra_noweak(as, r);
+  return r;
+}
+
+/* Add a register rename to the IR. */
+static void ra_addrename(ASMState *as, Reg down, IRRef ref, SnapNo snapno)
+{
+  IRRef ren;
+  lj_ir_set(as->J, IRT(IR_RENAME, IRT_NIL), ref, snapno);
+  ren = tref_ref(lj_ir_emit(as->J));
+  as->J->cur.ir[ren].r = (uint8_t)down;
+  as->J->cur.ir[ren].s = SPS_NONE;
+}
+
+/* Rename register allocation and emit move. */
+static void ra_rename(ASMState *as, Reg down, Reg up)
+{
+  IRRef ref = regcost_ref(as->cost[up] = as->cost[down]);
+  IRIns *ir = IR(ref);
+  ir->r = (uint8_t)up;
+  as->cost[down] = 0;
+  lj_assertA((down < RID_MAX_GPR) == (up < RID_MAX_GPR),
+	     "rename between GPR/FPR %d and %d", down, up);
+  lj_assertA(!rset_test(as->freeset, down), "rename from free reg %d", down);
+  lj_assertA(rset_test(as->freeset, up), "rename to non-free reg %d", up);
+  ra_free(as, down);  /* 'down' is free ... */
+  ra_modified(as, down);
+  rset_clear(as->freeset, up);  /* ... and 'up' is now allocated. */
+  ra_noweak(as, up);
+  RA_DBGX((as, "rename    $f $r $r", regcost_ref(as->cost[up]), down, up));
+  emit_movrr(as, ir, down, up);  /* Backwards codegen needs inverse move. */
+  if (!ra_hasspill(IR(ref)->s)) {  /* Add the rename to the IR. */
+    /*
+    ** The rename is effective at the subsequent (already emitted) exit
+    ** branch. This is for the current snapshot (as->snapno). Except if we
+    ** haven't yet allocated any refs for the snapshot (as->snapalloc == 1),
+    ** then it belongs to the next snapshot.
+    ** See also the discussion at asm_snap_checkrename().
+    */
+    ra_addrename(as, down, ref, as->snapno + as->snapalloc);
+  }
+}
+
+/* Pick a destination register (marked as free).
+** Caveat: allow is ignored if there's already a destination register.
+** Use ra_destreg() to get a specific register.
+*/
+static Reg ra_dest(ASMState *as, IRIns *ir, RegSet allow)
+{
+  Reg dest = ir->r;
+  if (ra_hasreg(dest)) {
+    ra_free(as, dest);
+    ra_modified(as, dest);
+  } else {
+    if (ra_hashint(dest) && rset_test((as->freeset&allow), ra_gethint(dest))) {
+      dest = ra_gethint(dest);
+      ra_modified(as, dest);
+      RA_DBGX((as, "dest           $r", dest));
+    } else {
+      dest = ra_scratch(as, allow);
+    }
+    ir->r = dest;
+  }
+  if (LJ_UNLIKELY(ra_hasspill(ir->s))) ra_save(as, ir, dest);
+  return dest;
+}
+
+/* Force a specific destination register (marked as free). */
+static void ra_destreg(ASMState *as, IRIns *ir, Reg r)
+{
+  Reg dest = ra_dest(as, ir, RID2RSET(r));
+  if (dest != r) {
+    lj_assertA(rset_test(as->freeset, r), "dest reg %d is not free", r);
+    ra_modified(as, r);
+    emit_movrr(as, ir, dest, r);
+  }
+}
+
+#if LJ_TARGET_X86ORX64
+/* Propagate dest register to left reference. Emit moves as needed.
+** This is a required fixup step for all 2-operand machine instructions.
+*/
+static void ra_left(ASMState *as, Reg dest, IRRef lref)
+{
+  IRIns *ir = IR(lref);
+  Reg left = ir->r;
+  if (ra_noreg(left)) {
+    if (irref_isk(lref)) {
+      if (ir->o == IR_KNUM) {
+	/* FP remat needs a load except for +0. Still better than eviction. */
+	if (tvispzero(ir_knum(ir)) || !(as->freeset & RSET_FPR)) {
+	  emit_loadk64(as, dest, ir);
+	  return;
+	}
+#if LJ_64
+      } else if (ir->o == IR_KINT64) {
+	emit_loadk64(as, dest, ir);
+	return;
+#if LJ_GC64
+      } else if (ir->o == IR_KGC || ir->o == IR_KPTR || ir->o == IR_KKPTR) {
+	emit_loadk64(as, dest, ir);
+	return;
+#endif
+#endif
+      } else if (ir->o != IR_KPRI) {
+	lj_assertA(ir->o == IR_KINT || ir->o == IR_KGC ||
+		   ir->o == IR_KPTR || ir->o == IR_KKPTR || ir->o == IR_KNULL,
+		   "K%03d has bad IR op %d", REF_BIAS - lref, ir->o);
+	emit_loadi(as, dest, ir->i);
+	return;
+      }
+    }
+    if (!ra_hashint(left) && !iscrossref(as, lref))
+      ra_sethint(ir->r, dest);  /* Propagate register hint. */
+    left = ra_allocref(as, lref, dest < RID_MAX_GPR ? RSET_GPR : RSET_FPR);
+  }
+  ra_noweak(as, left);
+  /* Move needed for true 3-operand instruction: y=a+b ==> y=a; y+=b. */
+  if (dest != left) {
+    /* Use register renaming if dest is the PHI reg. */
+    if (irt_isphi(ir->t) && as->phireg[dest] == lref) {
+      ra_modified(as, left);
+      ra_rename(as, left, dest);
+    } else {
+      emit_movrr(as, ir, dest, left);
+    }
+  }
+}
+#else
+/* Similar to ra_left, except we override any hints. */
+static void ra_leftov(ASMState *as, Reg dest, IRRef lref)
+{
+  IRIns *ir = IR(lref);
+  Reg left = ir->r;
+  if (ra_noreg(left)) {
+    ra_sethint(ir->r, dest);  /* Propagate register hint. */
+    left = ra_allocref(as, lref,
+		       (LJ_SOFTFP || dest < RID_MAX_GPR) ? RSET_GPR : RSET_FPR);
+  }
+  ra_noweak(as, left);
+  if (dest != left) {
+    /* Use register renaming if dest is the PHI reg. */
+    if (irt_isphi(ir->t) && as->phireg[dest] == lref) {
+      ra_modified(as, left);
+      ra_rename(as, left, dest);
+    } else {
+      emit_movrr(as, ir, dest, left);
+    }
+  }
+}
+#endif
+
+/* Force a RID_RETLO/RID_RETHI destination register pair (marked as free). */
+static void ra_destpair(ASMState *as, IRIns *ir)
+{
+  Reg destlo = ir->r, desthi = (ir+1)->r;
+  IRIns *irx = (LJ_64 && !irt_is64(ir->t)) ? ir+1 : ir;
+  /* First spill unrelated refs blocking the destination registers. */
+  if (!rset_test(as->freeset, RID_RETLO) &&
+      destlo != RID_RETLO && desthi != RID_RETLO)
+    ra_restore(as, regcost_ref(as->cost[RID_RETLO]));
+  if (!rset_test(as->freeset, RID_RETHI) &&
+      destlo != RID_RETHI && desthi != RID_RETHI)
+    ra_restore(as, regcost_ref(as->cost[RID_RETHI]));
+  /* Next free the destination registers (if any). */
+  if (ra_hasreg(destlo)) {
+    ra_free(as, destlo);
+    ra_modified(as, destlo);
+  } else {
+    destlo = RID_RETLO;
+  }
+  if (ra_hasreg(desthi)) {
+    ra_free(as, desthi);
+    ra_modified(as, desthi);
+  } else {
+    desthi = RID_RETHI;
+  }
+  /* Check for conflicts and shuffle the registers as needed. */
+  if (destlo == RID_RETHI) {
+    if (desthi == RID_RETLO) {
+#if LJ_TARGET_X86ORX64
+      *--as->mcp = XI_XCHGa + RID_RETHI;
+      if (LJ_64 && irt_is64(irx->t)) *--as->mcp = 0x48;
+#else
+      emit_movrr(as, irx, RID_RETHI, RID_TMP);
+      emit_movrr(as, irx, RID_RETLO, RID_RETHI);
+      emit_movrr(as, irx, RID_TMP, RID_RETLO);
+#endif
+    } else {
+      emit_movrr(as, irx, RID_RETHI, RID_RETLO);
+      if (desthi != RID_RETHI) emit_movrr(as, irx, desthi, RID_RETHI);
+    }
+  } else if (desthi == RID_RETLO) {
+    emit_movrr(as, irx, RID_RETLO, RID_RETHI);
+    if (destlo != RID_RETLO) emit_movrr(as, irx, destlo, RID_RETLO);
+  } else {
+    if (desthi != RID_RETHI) emit_movrr(as, irx, desthi, RID_RETHI);
+    if (destlo != RID_RETLO) emit_movrr(as, irx, destlo, RID_RETLO);
+  }
+  /* Restore spill slots (if any). */
+  if (ra_hasspill((ir+1)->s)) ra_save(as, ir+1, RID_RETHI);
+  if (ra_hasspill(ir->s)) ra_save(as, ir, RID_RETLO);
+}
+
+/* -- Snapshot handling --------- ----------------------------------------- */
+
+/* Can we rematerialize a KNUM instead of forcing a spill? */
+static int asm_snap_canremat(ASMState *as)
+{
+  Reg r;
+  for (r = RID_MIN_FPR; r < RID_MAX_FPR; r++)
+    if (irref_isk(regcost_ref(as->cost[r])))
+      return 1;
+  return 0;
+}
+
+/* Check whether a sunk store corresponds to an allocation. */
+static int asm_sunk_store(ASMState *as, IRIns *ira, IRIns *irs)
+{
+  if (irs->s == 255) {
+    if (irs->o == IR_ASTORE || irs->o == IR_HSTORE ||
+	irs->o == IR_FSTORE || irs->o == IR_XSTORE) {
+      IRIns *irk = IR(irs->op1);
+      if (irk->o == IR_AREF || irk->o == IR_HREFK)
+	irk = IR(irk->op1);
+      return (IR(irk->op1) == ira);
+    }
+    return 0;
+  } else {
+    return (ira + irs->s == irs);  /* Quick check. */
+  }
+}
+
+/* Allocate register or spill slot for a ref that escapes to a snapshot. */
+static void asm_snap_alloc1(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (!irref_isk(ref) && ir->r != RID_SUNK) {
+    bloomset(as->snapfilt1, ref);
+    bloomset(as->snapfilt2, hashrot(ref, ref + HASH_BIAS));
+    if (ra_used(ir)) return;
+    if (ir->r == RID_SINK) {
+      ir->r = RID_SUNK;
+#if LJ_HASFFI
+      if (ir->o == IR_CNEWI) {  /* Allocate CNEWI value. */
+	asm_snap_alloc1(as, ir->op2);
+	if (LJ_32 && (ir+1)->o == IR_HIOP)
+	  asm_snap_alloc1(as, (ir+1)->op2);
+      } else
+#endif
+      {  /* Allocate stored values for TNEW, TDUP and CNEW. */
+	IRIns *irs;
+	lj_assertA(ir->o == IR_TNEW || ir->o == IR_TDUP || ir->o == IR_CNEW,
+		   "sink of IR %04d has bad op %d", ref - REF_BIAS, ir->o);
+	for (irs = IR(as->snapref-1); irs > ir; irs--)
+	  if (irs->r == RID_SINK && asm_sunk_store(as, ir, irs)) {
+	    lj_assertA(irs->o == IR_ASTORE || irs->o == IR_HSTORE ||
+		       irs->o == IR_FSTORE || irs->o == IR_XSTORE,
+		       "sunk store IR %04d has bad op %d",
+		       (int)(irs - as->ir) - REF_BIAS, irs->o);
+	    asm_snap_alloc1(as, irs->op2);
+	    if (LJ_32 && (irs+1)->o == IR_HIOP)
+	      asm_snap_alloc1(as, (irs+1)->op2);
+	  }
+      }
+    } else {
+      RegSet allow;
+      if (ir->o == IR_CONV && ir->op2 == IRCONV_NUM_INT) {
+	IRIns *irc;
+	for (irc = IR(as->curins); irc > ir; irc--)
+	  if ((irc->op1 == ref || irc->op2 == ref) &&
+	      !(irc->r == RID_SINK || irc->r == RID_SUNK))
+	    goto nosink;  /* Don't sink conversion if result is used. */
+	asm_snap_alloc1(as, ir->op1);
+	return;
+      }
+    nosink:
+      allow = (!LJ_SOFTFP && irt_isfp(ir->t)) ? RSET_FPR : RSET_GPR;
+      if ((as->freeset & allow) ||
+	       (allow == RSET_FPR && asm_snap_canremat(as))) {
+	/* Get a weak register if we have a free one or can rematerialize. */
+	Reg r = ra_allocref(as, ref, allow);  /* Allocate a register. */
+	if (!irt_isphi(ir->t))
+	  ra_weak(as, r);  /* But mark it as weakly referenced. */
+	checkmclim(as);
+	RA_DBGX((as, "snapreg   $f $r", ref, ir->r));
+      } else {
+	ra_spill(as, ir);  /* Otherwise force a spill slot. */
+	RA_DBGX((as, "snapspill $f $s", ref, ir->s));
+      }
+    }
+  }
+}
+
+/* Allocate refs escaping to a snapshot. */
+static void asm_snap_alloc(ASMState *as, int snapno)
+{
+  SnapShot *snap = &as->T->snap[snapno];
+  SnapEntry *map = &as->T->snapmap[snap->mapofs];
+  MSize n, nent = snap->nent;
+  as->snapfilt1 = as->snapfilt2 = 0;
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    IRRef ref = snap_ref(sn);
+    if (!irref_isk(ref)) {
+      asm_snap_alloc1(as, ref);
+      if (LJ_SOFTFP && (sn & SNAP_SOFTFPNUM)) {
+	lj_assertA(irt_type(IR(ref+1)->t) == IRT_SOFTFP,
+		   "snap %d[%d] points to bad SOFTFP IR %04d",
+		   snapno, n, ref - REF_BIAS);
+	asm_snap_alloc1(as, ref+1);
+      }
+    }
+  }
+}
+
+/* All guards for a snapshot use the same exitno. This is currently the
+** same as the snapshot number. Since the exact origin of the exit cannot
+** be determined, all guards for the same snapshot must exit with the same
+** RegSP mapping.
+** A renamed ref which has been used in a prior guard for the same snapshot
+** would cause an inconsistency. The easy way out is to force a spill slot.
+*/
+static int asm_snap_checkrename(ASMState *as, IRRef ren)
+{
+  if (bloomtest(as->snapfilt1, ren) &&
+      bloomtest(as->snapfilt2, hashrot(ren, ren + HASH_BIAS))) {
+    IRIns *ir = IR(ren);
+    ra_spill(as, ir);  /* Register renamed, so force a spill slot. */
+    RA_DBGX((as, "snaprensp $f $s", ren, ir->s));
+    return 1;  /* Found. */
+  }
+  return 0;  /* Not found. */
+}
+
+/* Prepare snapshot for next guard or throwing instruction. */
+static void asm_snap_prep(ASMState *as)
+{
+  if (as->snapalloc) {
+    /* Alloc on first invocation for each snapshot. */
+    as->snapalloc = 0;
+    asm_snap_alloc(as, as->snapno);
+    as->snaprename = as->T->nins;
+  } else {
+    /* Check any renames above the highwater mark. */
+    for (; as->snaprename < as->T->nins; as->snaprename++) {
+      IRIns *ir = &as->T->ir[as->snaprename];
+      if (asm_snap_checkrename(as, ir->op1))
+	ir->op2 = REF_BIAS-1;  /* Kill rename. */
+    }
+  }
+}
+
+/* Move to previous snapshot when we cross the current snapshot ref. */
+static void asm_snap_prev(ASMState *as)
+{
+  if (as->curins < as->snapref) {
+    uintptr_t ofs = (uintptr_t)(as->mctoporig - as->mcp);
+    if (ofs >= 0x10000) lj_trace_err(as->J, LJ_TRERR_MCODEOV);
+    do {
+      if (as->snapno == 0) return;
+      as->snapno--;
+      as->snapref = as->T->snap[as->snapno].ref;
+      as->T->snap[as->snapno].mcofs = (uint16_t)ofs;  /* Remember mcode ofs. */
+    } while (as->curins < as->snapref);  /* May have no ins inbetween. */
+    as->snapalloc = 1;
+  }
+}
+
+/* Fixup snapshot mcode offsetst. */
+static void asm_snap_fixup_mcofs(ASMState *as)
+{
+  uint32_t sz = (uint32_t)(as->mctoporig - as->mcp);
+  SnapShot *snap = as->T->snap;
+  SnapNo i;
+  for (i = as->T->nsnap-1; i > 0; i--) {
+    /* Compute offset from mcode start and store in correct snapshot. */
+    snap[i].mcofs = (uint16_t)(sz - snap[i-1].mcofs);
+  }
+  snap[0].mcofs = 0;
+}
+
+/* -- Miscellaneous helpers ----------------------------------------------- */
+
+/* Calculate stack adjustment. */
+static int32_t asm_stack_adjust(ASMState *as)
+{
+  if (as->evenspill <= SPS_FIXED)
+    return 0;
+  return sps_scale(sps_align(as->evenspill));
+}
+
+/* Must match with hash*() in lj_tab.c. */
+static uint32_t ir_khash(ASMState *as, IRIns *ir)
+{
+  uint32_t lo, hi;
+  UNUSED(as);
+  if (irt_isstr(ir->t)) {
+    return ir_kstr(ir)->sid;
+  } else if (irt_isnum(ir->t)) {
+    lo = ir_knum(ir)->u32.lo;
+    hi = ir_knum(ir)->u32.hi << 1;
+  } else if (irt_ispri(ir->t)) {
+    lj_assertA(!irt_isnil(ir->t), "hash of nil key");
+    return irt_type(ir->t)-IRT_FALSE;
+  } else {
+    lj_assertA(irt_isgcv(ir->t), "hash of bad IR type %d", irt_type(ir->t));
+    lo = u32ptr(ir_kgc(ir));
+#if LJ_GC64
+    hi = (uint32_t)(u64ptr(ir_kgc(ir)) >> 32) | (irt_toitype(ir->t) << 15);
+#else
+    hi = lo + HASH_BIAS;
+#endif
+  }
+  return hashrot(lo, hi);
+}
+
+/* -- Allocations --------------------------------------------------------- */
+
+static void asm_gencall(ASMState *as, const CCallInfo *ci, IRRef *args);
+static void asm_setupresult(ASMState *as, IRIns *ir, const CCallInfo *ci);
+
+static void asm_snew(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_str_new];
+  IRRef args[3];
+  asm_snap_prep(as);
+  args[0] = ASMREF_L;  /* lua_State *L    */
+  args[1] = ir->op1;   /* const char *str */
+  args[2] = ir->op2;   /* size_t len      */
+  as->gcsteps++;
+  asm_setupresult(as, ir, ci);  /* GCstr * */
+  asm_gencall(as, ci, args);
+}
+
+static void asm_tnew(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_tab_new1];
+  IRRef args[2];
+  asm_snap_prep(as);
+  args[0] = ASMREF_L;     /* lua_State *L    */
+  args[1] = ASMREF_TMP1;  /* uint32_t ahsize */
+  as->gcsteps++;
+  asm_setupresult(as, ir, ci);  /* GCtab * */
+  asm_gencall(as, ci, args);
+  ra_allockreg(as, ir->op1 | (ir->op2 << 24), ra_releasetmp(as, ASMREF_TMP1));
+}
+
+static void asm_tdup(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_tab_dup];
+  IRRef args[2];
+  asm_snap_prep(as);
+  args[0] = ASMREF_L;  /* lua_State *L    */
+  args[1] = ir->op1;   /* const GCtab *kt */
+  as->gcsteps++;
+  asm_setupresult(as, ir, ci);  /* GCtab * */
+  asm_gencall(as, ci, args);
+}
+
+static void asm_gc_check(ASMState *as);
+
+/* Explicit GC step. */
+static void asm_gcstep(ASMState *as, IRIns *ir)
+{
+  IRIns *ira;
+  for (ira = IR(as->stopins+1); ira < ir; ira++)
+    if ((ira->o == IR_TNEW || ira->o == IR_TDUP ||
+	 (LJ_HASFFI && (ira->o == IR_CNEW || ira->o == IR_CNEWI))) &&
+	ra_used(ira))
+      as->gcsteps++;
+  if (as->gcsteps)
+    asm_gc_check(as);
+  as->gcsteps = 0x80000000;  /* Prevent implicit GC check further up. */
+}
+
+/* -- Buffer operations --------------------------------------------------- */
+
+static void asm_tvptr(ASMState *as, Reg dest, IRRef ref, MSize mode);
+#if LJ_HASBUFFER
+static void asm_bufhdr_write(ASMState *as, Reg sb);
+#endif
+
+static void asm_bufhdr(ASMState *as, IRIns *ir)
+{
+  Reg sb = ra_dest(as, ir, RSET_GPR);
+  switch (ir->op2) {
+  case IRBUFHDR_RESET: {
+    Reg tmp = ra_scratch(as, rset_exclude(RSET_GPR, sb));
+    IRIns irbp;
+    irbp.ot = IRT(0, IRT_PTR);  /* Buffer data pointer type. */
+    emit_storeofs(as, &irbp, tmp, sb, offsetof(SBuf, w));
+    emit_loadofs(as, &irbp, tmp, sb, offsetof(SBuf, b));
+    break;
+    }
+  case IRBUFHDR_APPEND: {
+    /* Rematerialize const buffer pointer instead of likely spill. */
+    IRIns *irp = IR(ir->op1);
+    if (!(ra_hasreg(irp->r) || irp == ir-1 ||
+	  (irp == ir-2 && !ra_used(ir-1)))) {
+      while (!(irp->o == IR_BUFHDR && irp->op2 == IRBUFHDR_RESET))
+	irp = IR(irp->op1);
+      if (irref_isk(irp->op1)) {
+	ra_weak(as, ra_allocref(as, ir->op1, RSET_GPR));
+	ir = irp;
+      }
+    }
+    break;
+    }
+#if LJ_HASBUFFER
+  case IRBUFHDR_WRITE:
+    asm_bufhdr_write(as, sb);
+    break;
+#endif
+  default: lj_assertA(0, "bad BUFHDR op2 %d", ir->op2); break;
+  }
+#if LJ_TARGET_X86ORX64
+  ra_left(as, sb, ir->op1);
+#else
+  ra_leftov(as, sb, ir->op1);
+#endif
+}
+
+static void asm_bufput(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_buf_putstr];
+  IRRef args[3];
+  IRIns *irs;
+  int kchar = -129;
+  args[0] = ir->op1;  /* SBuf * */
+  args[1] = ir->op2;  /* GCstr * */
+  irs = IR(ir->op2);
+  lj_assertA(irt_isstr(irs->t),
+	     "BUFPUT of non-string IR %04d", ir->op2 - REF_BIAS);
+  if (irs->o == IR_KGC) {
+    GCstr *s = ir_kstr(irs);
+    if (s->len == 1) {  /* Optimize put of single-char string constant. */
+      kchar = (int8_t)strdata(s)[0];  /* Signed! */
+      args[1] = ASMREF_TMP1;  /* int, truncated to char */
+      ci = &lj_ir_callinfo[IRCALL_lj_buf_putchar];
+    }
+  } else if (mayfuse(as, ir->op2) && ra_noreg(irs->r)) {
+    if (irs->o == IR_TOSTR) {  /* Fuse number to string conversions. */
+      if (irs->op2 == IRTOSTR_NUM) {
+	args[1] = ASMREF_TMP1;  /* TValue * */
+	ci = &lj_ir_callinfo[IRCALL_lj_strfmt_putnum];
+      } else {
+	lj_assertA(irt_isinteger(IR(irs->op1)->t),
+		   "TOSTR of non-numeric IR %04d", irs->op1);
+	args[1] = irs->op1;  /* int */
+	if (irs->op2 == IRTOSTR_INT)
+	  ci = &lj_ir_callinfo[IRCALL_lj_strfmt_putint];
+	else
+	  ci = &lj_ir_callinfo[IRCALL_lj_buf_putchar];
+      }
+    } else if (irs->o == IR_SNEW) {  /* Fuse string allocation. */
+      args[1] = irs->op1;  /* const void * */
+      args[2] = irs->op2;  /* MSize */
+      ci = &lj_ir_callinfo[IRCALL_lj_buf_putmem];
+    }
+  }
+  asm_setupresult(as, ir, ci);  /* SBuf * */
+  asm_gencall(as, ci, args);
+  if (args[1] == ASMREF_TMP1) {
+    Reg tmp = ra_releasetmp(as, ASMREF_TMP1);
+    if (kchar == -129)
+      asm_tvptr(as, tmp, irs->op1, IRTMPREF_IN1);
+    else
+      ra_allockreg(as, kchar, tmp);
+  }
+}
+
+static void asm_bufstr(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_buf_tostr];
+  IRRef args[1];
+  args[0] = ir->op1;  /* SBuf *sb */
+  as->gcsteps++;
+  asm_setupresult(as, ir, ci);  /* GCstr * */
+  asm_gencall(as, ci, args);
+}
+
+/* -- Type conversions ---------------------------------------------------- */
+
+static void asm_tostr(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci;
+  IRRef args[2];
+  asm_snap_prep(as);
+  args[0] = ASMREF_L;
+  as->gcsteps++;
+  if (ir->op2 == IRTOSTR_NUM) {
+    args[1] = ASMREF_TMP1;  /* cTValue * */
+    ci = &lj_ir_callinfo[IRCALL_lj_strfmt_num];
+  } else {
+    args[1] = ir->op1;  /* int32_t k */
+    if (ir->op2 == IRTOSTR_INT)
+      ci = &lj_ir_callinfo[IRCALL_lj_strfmt_int];
+    else
+      ci = &lj_ir_callinfo[IRCALL_lj_strfmt_char];
+  }
+  asm_setupresult(as, ir, ci);  /* GCstr * */
+  asm_gencall(as, ci, args);
+  if (ir->op2 == IRTOSTR_NUM)
+    asm_tvptr(as, ra_releasetmp(as, ASMREF_TMP1), ir->op1, IRTMPREF_IN1);
+}
+
+#if LJ_32 && LJ_HASFFI && !LJ_SOFTFP && !LJ_TARGET_X86
+static void asm_conv64(ASMState *as, IRIns *ir)
+{
+  IRType st = (IRType)((ir-1)->op2 & IRCONV_SRCMASK);
+  IRType dt = (((ir-1)->op2 & IRCONV_DSTMASK) >> IRCONV_DSH);
+  IRCallID id;
+  IRRef args[2];
+  lj_assertA((ir-1)->o == IR_CONV && ir->o == IR_HIOP,
+	     "not a CONV/HIOP pair at IR %04d", (int)(ir - as->ir) - REF_BIAS);
+  args[LJ_BE] = (ir-1)->op1;
+  args[LJ_LE] = ir->op1;
+  if (st == IRT_NUM || st == IRT_FLOAT) {
+    id = IRCALL_fp64_d2l + ((st == IRT_FLOAT) ? 2 : 0) + (dt - IRT_I64);
+    ir--;
+  } else {
+    id = IRCALL_fp64_l2d + ((dt == IRT_FLOAT) ? 2 : 0) + (st - IRT_I64);
+  }
+  {
+#if LJ_TARGET_ARM && !LJ_ABI_SOFTFP
+    CCallInfo cim = lj_ir_callinfo[id], *ci = &cim;
+    cim.flags |= CCI_VARARG;  /* These calls don't use the hard-float ABI! */
+#else
+    const CCallInfo *ci = &lj_ir_callinfo[id];
+#endif
+    asm_setupresult(as, ir, ci);
+    asm_gencall(as, ci, args);
+  }
+}
+#endif
+
+/* -- Memory references --------------------------------------------------- */
+
+static void asm_newref(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_tab_newkey];
+  IRRef args[3];
+  if (ir->r == RID_SINK)
+    return;
+  asm_snap_prep(as);
+  args[0] = ASMREF_L;     /* lua_State *L */
+  args[1] = ir->op1;      /* GCtab *t     */
+  args[2] = ASMREF_TMP1;  /* cTValue *key */
+  asm_setupresult(as, ir, ci);  /* TValue * */
+  asm_gencall(as, ci, args);
+  asm_tvptr(as, ra_releasetmp(as, ASMREF_TMP1), ir->op2, IRTMPREF_IN1);
+}
+
+static void asm_tmpref(ASMState *as, IRIns *ir)
+{
+  Reg r = ra_dest(as, ir, RSET_GPR);
+  asm_tvptr(as, r, ir->op1, ir->op2);
+}
+
+static void asm_lref(ASMState *as, IRIns *ir)
+{
+  Reg r = ra_dest(as, ir, RSET_GPR);
+#if LJ_TARGET_X86ORX64
+  ra_left(as, r, ASMREF_L);
+#else
+  ra_leftov(as, r, ASMREF_L);
+#endif
+}
+
+/* -- Calls --------------------------------------------------------------- */
+
+/* Collect arguments from CALL* and CARG instructions. */
+static void asm_collectargs(ASMState *as, IRIns *ir,
+			    const CCallInfo *ci, IRRef *args)
+{
+  uint32_t n = CCI_XNARGS(ci);
+  /* Account for split args. */
+  lj_assertA(n <= CCI_NARGS_MAX*2, "too many args %d to collect", n);
+  if ((ci->flags & CCI_L)) { *args++ = ASMREF_L; n--; }
+  while (n-- > 1) {
+    ir = IR(ir->op1);
+    lj_assertA(ir->o == IR_CARG, "malformed CALL arg tree");
+    args[n] = ir->op2 == REF_NIL ? 0 : ir->op2;
+  }
+  args[0] = ir->op1 == REF_NIL ? 0 : ir->op1;
+  lj_assertA(IR(ir->op1)->o != IR_CARG, "malformed CALL arg tree");
+}
+
+/* Reconstruct CCallInfo flags for CALLX*. */
+static uint32_t asm_callx_flags(ASMState *as, IRIns *ir)
+{
+  uint32_t nargs = 0;
+  if (ir->op1 != REF_NIL) {  /* Count number of arguments first. */
+    IRIns *ira = IR(ir->op1);
+    nargs++;
+    while (ira->o == IR_CARG) { nargs++; ira = IR(ira->op1); }
+  }
+#if LJ_HASFFI
+  if (IR(ir->op2)->o == IR_CARG) {  /* Copy calling convention info. */
+    CTypeID id = (CTypeID)IR(IR(ir->op2)->op2)->i;
+    CType *ct = ctype_get(ctype_ctsG(J2G(as->J)), id);
+    nargs |= ((ct->info & CTF_VARARG) ? CCI_VARARG : 0);
+#if LJ_TARGET_X86
+    nargs |= (ctype_cconv(ct->info) << CCI_CC_SHIFT);
+#endif
+  }
+#endif
+  return (nargs | (ir->t.irt << CCI_OTSHIFT));
+}
+
+static void asm_callid(ASMState *as, IRIns *ir, IRCallID id)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[id];
+  IRRef args[2];
+  args[0] = ir->op1;
+  args[1] = ir->op2;
+  asm_setupresult(as, ir, ci);
+  asm_gencall(as, ci, args);
+}
+
+static void asm_call(ASMState *as, IRIns *ir)
+{
+  IRRef args[CCI_NARGS_MAX];
+  const CCallInfo *ci = &lj_ir_callinfo[ir->op2];
+  asm_collectargs(as, ir, ci, args);
+  asm_setupresult(as, ir, ci);
+  asm_gencall(as, ci, args);
+}
+
+/* -- PHI and loop handling ----------------------------------------------- */
+
+/* Break a PHI cycle by renaming to a free register (evict if needed). */
+static void asm_phi_break(ASMState *as, RegSet blocked, RegSet blockedby,
+			  RegSet allow)
+{
+  RegSet candidates = blocked & allow;
+  if (candidates) {  /* If this register file has candidates. */
+    /* Note: the set for ra_pick cannot be empty, since each register file
+    ** has some registers never allocated to PHIs.
+    */
+    Reg down, up = ra_pick(as, ~blocked & allow);  /* Get a free register. */
+    if (candidates & ~blockedby)  /* Optimize shifts, else it's a cycle. */
+      candidates = candidates & ~blockedby;
+    down = rset_picktop(candidates);  /* Pick candidate PHI register. */
+    ra_rename(as, down, up);  /* And rename it to the free register. */
+  }
+}
+
+/* PHI register shuffling.
+**
+** The allocator tries hard to preserve PHI register assignments across
+** the loop body. Most of the time this loop does nothing, since there
+** are no register mismatches.
+**
+** If a register mismatch is detected and ...
+** - the register is currently free: rename it.
+** - the register is blocked by an invariant: restore/remat and rename it.
+** - Otherwise the register is used by another PHI, so mark it as blocked.
+**
+** The renames are order-sensitive, so just retry the loop if a register
+** is marked as blocked, but has been freed in the meantime. A cycle is
+** detected if all of the blocked registers are allocated. To break the
+** cycle rename one of them to a free register and retry.
+**
+** Note that PHI spill slots are kept in sync and don't need to be shuffled.
+*/
+static void asm_phi_shuffle(ASMState *as)
+{
+  RegSet work;
+
+  /* Find and resolve PHI register mismatches. */
+  for (;;) {
+    RegSet blocked = RSET_EMPTY;
+    RegSet blockedby = RSET_EMPTY;
+    RegSet phiset = as->phiset;
+    while (phiset) {  /* Check all left PHI operand registers. */
+      Reg r = rset_pickbot(phiset);
+      IRIns *irl = IR(as->phireg[r]);
+      Reg left = irl->r;
+      if (r != left) {  /* Mismatch? */
+	if (!rset_test(as->freeset, r)) {  /* PHI register blocked? */
+	  IRRef ref = regcost_ref(as->cost[r]);
+	  /* Blocked by other PHI (w/reg)? */
+	  if (!ra_iskref(ref) && irt_ismarked(IR(ref)->t)) {
+	    rset_set(blocked, r);
+	    if (ra_hasreg(left))
+	      rset_set(blockedby, left);
+	    left = RID_NONE;
+	  } else {  /* Otherwise grab register from invariant. */
+	    ra_restore(as, ref);
+	    checkmclim(as);
+	  }
+	}
+	if (ra_hasreg(left)) {
+	  ra_rename(as, left, r);
+	  checkmclim(as);
+	}
+      }
+      rset_clear(phiset, r);
+    }
+    if (!blocked) break;  /* Finished. */
+    if (!(as->freeset & blocked)) {  /* Break cycles if none are free. */
+      asm_phi_break(as, blocked, blockedby, RSET_GPR);
+      if (!LJ_SOFTFP) asm_phi_break(as, blocked, blockedby, RSET_FPR);
+      checkmclim(as);
+    }  /* Else retry some more renames. */
+  }
+
+  /* Restore/remat invariants whose registers are modified inside the loop. */
+#if !LJ_SOFTFP
+  work = as->modset & ~(as->freeset | as->phiset) & RSET_FPR;
+  while (work) {
+    Reg r = rset_pickbot(work);
+    ra_restore(as, regcost_ref(as->cost[r]));
+    rset_clear(work, r);
+    checkmclim(as);
+  }
+#endif
+  work = as->modset & ~(as->freeset | as->phiset);
+  while (work) {
+    Reg r = rset_pickbot(work);
+    ra_restore(as, regcost_ref(as->cost[r]));
+    rset_clear(work, r);
+    checkmclim(as);
+  }
+
+  /* Allocate and save all unsaved PHI regs and clear marks. */
+  work = as->phiset;
+  while (work) {
+    Reg r = rset_picktop(work);
+    IRRef lref = as->phireg[r];
+    IRIns *ir = IR(lref);
+    if (ra_hasspill(ir->s)) {  /* Left PHI gained a spill slot? */
+      irt_clearmark(ir->t);  /* Handled here, so clear marker now. */
+      ra_alloc1(as, lref, RID2RSET(r));
+      ra_save(as, ir, r);  /* Save to spill slot inside the loop. */
+      checkmclim(as);
+    }
+    rset_clear(work, r);
+  }
+}
+
+/* Copy unsynced left/right PHI spill slots. Rarely needed. */
+static void asm_phi_copyspill(ASMState *as)
+{
+  int need = 0;
+  IRIns *ir;
+  for (ir = IR(as->orignins-1); ir->o == IR_PHI; ir--)
+    if (ra_hasspill(ir->s) && ra_hasspill(IR(ir->op1)->s))
+      need |= irt_isfp(ir->t) ? 2 : 1;  /* Unsynced spill slot? */
+  if ((need & 1)) {  /* Copy integer spill slots. */
+#if !LJ_TARGET_X86ORX64
+    Reg r = RID_TMP;
+#else
+    Reg r = RID_RET;
+    if ((as->freeset & RSET_GPR))
+      r = rset_pickbot((as->freeset & RSET_GPR));
+    else
+      emit_spload(as, IR(regcost_ref(as->cost[r])), r, SPOFS_TMP);
+#endif
+    for (ir = IR(as->orignins-1); ir->o == IR_PHI; ir--) {
+      if (ra_hasspill(ir->s)) {
+	IRIns *irl = IR(ir->op1);
+	if (ra_hasspill(irl->s) && !irt_isfp(ir->t)) {
+	  emit_spstore(as, irl, r, sps_scale(irl->s));
+	  emit_spload(as, ir, r, sps_scale(ir->s));
+	  checkmclim(as);
+	}
+      }
+    }
+#if LJ_TARGET_X86ORX64
+    if (!rset_test(as->freeset, r))
+      emit_spstore(as, IR(regcost_ref(as->cost[r])), r, SPOFS_TMP);
+#endif
+  }
+#if !LJ_SOFTFP
+  if ((need & 2)) {  /* Copy FP spill slots. */
+#if LJ_TARGET_X86
+    Reg r = RID_XMM0;
+#else
+    Reg r = RID_FPRET;
+#endif
+    if ((as->freeset & RSET_FPR))
+      r = rset_pickbot((as->freeset & RSET_FPR));
+    if (!rset_test(as->freeset, r))
+      emit_spload(as, IR(regcost_ref(as->cost[r])), r, SPOFS_TMP);
+    for (ir = IR(as->orignins-1); ir->o == IR_PHI; ir--) {
+      if (ra_hasspill(ir->s)) {
+	IRIns *irl = IR(ir->op1);
+	if (ra_hasspill(irl->s) && irt_isfp(ir->t)) {
+	  emit_spstore(as, irl, r, sps_scale(irl->s));
+	  emit_spload(as, ir, r, sps_scale(ir->s));
+	  checkmclim(as);
+	}
+      }
+    }
+    if (!rset_test(as->freeset, r))
+      emit_spstore(as, IR(regcost_ref(as->cost[r])), r, SPOFS_TMP);
+  }
+#endif
+}
+
+/* Emit renames for left PHIs which are only spilled outside the loop. */
+static void asm_phi_fixup(ASMState *as)
+{
+  RegSet work = as->phiset;
+  while (work) {
+    Reg r = rset_picktop(work);
+    IRRef lref = as->phireg[r];
+    IRIns *ir = IR(lref);
+    if (irt_ismarked(ir->t)) {
+      irt_clearmark(ir->t);
+      /* Left PHI gained a spill slot before the loop? */
+      if (ra_hasspill(ir->s)) {
+	ra_addrename(as, r, lref, as->loopsnapno);
+      }
+    }
+    rset_clear(work, r);
+  }
+}
+
+/* Setup right PHI reference. */
+static void asm_phi(ASMState *as, IRIns *ir)
+{
+  RegSet allow = ((!LJ_SOFTFP && irt_isfp(ir->t)) ? RSET_FPR : RSET_GPR) &
+		 ~as->phiset;
+  RegSet afree = (as->freeset & allow);
+  IRIns *irl = IR(ir->op1);
+  IRIns *irr = IR(ir->op2);
+  if (ir->r == RID_SINK)  /* Sink PHI. */
+    return;
+  /* Spill slot shuffling is not implemented yet (but rarely needed). */
+  if (ra_hasspill(irl->s) || ra_hasspill(irr->s))
+    lj_trace_err(as->J, LJ_TRERR_NYIPHI);
+  /* Leave at least one register free for non-PHIs (and PHI cycle breaking). */
+  if ((afree & (afree-1))) {  /* Two or more free registers? */
+    Reg r;
+    if (ra_noreg(irr->r)) {  /* Get a register for the right PHI. */
+      r = ra_allocref(as, ir->op2, allow);
+    } else {  /* Duplicate right PHI, need a copy (rare). */
+      r = ra_scratch(as, allow);
+      emit_movrr(as, irr, r, irr->r);
+    }
+    ir->r = (uint8_t)r;
+    rset_set(as->phiset, r);
+    as->phireg[r] = (IRRef1)ir->op1;
+    irt_setmark(irl->t);  /* Marks left PHIs _with_ register. */
+    if (ra_noreg(irl->r))
+      ra_sethint(irl->r, r); /* Set register hint for left PHI. */
+  } else {  /* Otherwise allocate a spill slot. */
+    /* This is overly restrictive, but it triggers only on synthetic code. */
+    if (ra_hasreg(irl->r) || ra_hasreg(irr->r))
+      lj_trace_err(as->J, LJ_TRERR_NYIPHI);
+    ra_spill(as, ir);
+    irr->s = ir->s;  /* Set right PHI spill slot. Sync left slot later. */
+  }
+}
+
+static void asm_loop_fixup(ASMState *as);
+
+/* Middle part of a loop. */
+static void asm_loop(ASMState *as)
+{
+  MCode *mcspill;
+  /* LOOP is a guard, so the snapno is up to date. */
+  as->loopsnapno = as->snapno;
+  if (as->gcsteps)
+    asm_gc_check(as);
+  /* LOOP marks the transition from the variant to the invariant part. */
+  as->flagmcp = as->invmcp = NULL;
+  as->sectref = 0;
+  if (!neverfuse(as)) as->fuseref = 0;
+  asm_phi_shuffle(as);
+  mcspill = as->mcp;
+  asm_phi_copyspill(as);
+  asm_loop_fixup(as);
+  as->mcloop = as->mcp;
+  RA_DBGX((as, "===== LOOP ====="));
+  if (!as->realign) RA_DBG_FLUSH();
+  if (as->mcp != mcspill)
+    emit_jmp(as, mcspill);
+}
+
+/* -- Target-specific assembler ------------------------------------------- */
+
+#if LJ_TARGET_X86ORX64
+#include "lj_asm_x86.h"
+#elif LJ_TARGET_ARM
+#include "lj_asm_arm.h"
+#elif LJ_TARGET_ARM64
+#include "lj_asm_arm64.h"
+#elif LJ_TARGET_PPC
+#include "lj_asm_ppc.h"
+#elif LJ_TARGET_MIPS
+#include "lj_asm_mips.h"
+#else
+#error "Missing assembler for target CPU"
+#endif
+
+/* -- Common instruction helpers ------------------------------------------ */
+
+#if !LJ_SOFTFP32
+#if !LJ_TARGET_X86ORX64
+#define asm_ldexp(as, ir)	asm_callid(as, ir, IRCALL_ldexp)
+#endif
+
+static void asm_pow(ASMState *as, IRIns *ir)
+{
+#if LJ_64 && LJ_HASFFI
+  if (!irt_isnum(ir->t))
+    asm_callid(as, ir, irt_isi64(ir->t) ? IRCALL_lj_carith_powi64 :
+					  IRCALL_lj_carith_powu64);
+  else
+#endif
+  asm_callid(as, ir, IRCALL_pow);
+}
+
+static void asm_div(ASMState *as, IRIns *ir)
+{
+#if LJ_64 && LJ_HASFFI
+  if (!irt_isnum(ir->t))
+    asm_callid(as, ir, irt_isi64(ir->t) ? IRCALL_lj_carith_divi64 :
+					  IRCALL_lj_carith_divu64);
+  else
+#endif
+    asm_fpdiv(as, ir);
+}
+#endif
+
+static void asm_mod(ASMState *as, IRIns *ir)
+{
+#if LJ_64 && LJ_HASFFI
+  if (!irt_isint(ir->t))
+    asm_callid(as, ir, irt_isi64(ir->t) ? IRCALL_lj_carith_modi64 :
+					  IRCALL_lj_carith_modu64);
+  else
+#endif
+    asm_callid(as, ir, IRCALL_lj_vm_modi);
+}
+
+static void asm_fuseequal(ASMState *as, IRIns *ir)
+{
+  /* Fuse HREF + EQ/NE. */
+  if ((ir-1)->o == IR_HREF && ir->op1 == as->curins-1) {
+    as->curins--;
+    asm_href(as, ir-1, (IROp)ir->o);
+  } else {
+    asm_equal(as, ir);
+  }
+}
+
+static void asm_alen(ASMState *as, IRIns *ir)
+{
+  asm_callid(as, ir, ir->op2 == REF_NIL ? IRCALL_lj_tab_len :
+					  IRCALL_lj_tab_len_hint);
+}
+
+/* -- Instruction dispatch ------------------------------------------------ */
+
+/* Assemble a single instruction. */
+static void asm_ir(ASMState *as, IRIns *ir)
+{
+  switch ((IROp)ir->o) {
+  /* Miscellaneous ops. */
+  case IR_LOOP: asm_loop(as); break;
+  case IR_NOP: case IR_XBAR:
+    lj_assertA(!ra_used(ir),
+	       "IR %04d not unused", (int)(ir - as->ir) - REF_BIAS);
+    break;
+  case IR_USE:
+    ra_alloc1(as, ir->op1, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR); break;
+  case IR_PHI: asm_phi(as, ir); break;
+  case IR_HIOP: asm_hiop(as, ir); break;
+  case IR_GCSTEP: asm_gcstep(as, ir); break;
+  case IR_PROF: asm_prof(as, ir); break;
+
+  /* Guarded assertions. */
+  case IR_LT: case IR_GE: case IR_LE: case IR_GT:
+  case IR_ULT: case IR_UGE: case IR_ULE: case IR_UGT:
+  case IR_ABC:
+    asm_comp(as, ir);
+    break;
+  case IR_EQ: case IR_NE: asm_fuseequal(as, ir); break;
+
+  case IR_RETF: asm_retf(as, ir); break;
+
+  /* Bit ops. */
+  case IR_BNOT: asm_bnot(as, ir); break;
+  case IR_BSWAP: asm_bswap(as, ir); break;
+  case IR_BAND: asm_band(as, ir); break;
+  case IR_BOR: asm_bor(as, ir); break;
+  case IR_BXOR: asm_bxor(as, ir); break;
+  case IR_BSHL: asm_bshl(as, ir); break;
+  case IR_BSHR: asm_bshr(as, ir); break;
+  case IR_BSAR: asm_bsar(as, ir); break;
+  case IR_BROL: asm_brol(as, ir); break;
+  case IR_BROR: asm_bror(as, ir); break;
+
+  /* Arithmetic ops. */
+  case IR_ADD: asm_add(as, ir); break;
+  case IR_SUB: asm_sub(as, ir); break;
+  case IR_MUL: asm_mul(as, ir); break;
+  case IR_MOD: asm_mod(as, ir); break;
+  case IR_NEG: asm_neg(as, ir); break;
+#if LJ_SOFTFP32
+  case IR_DIV: case IR_POW: case IR_ABS:
+  case IR_LDEXP: case IR_FPMATH: case IR_TOBIT:
+    /* Unused for LJ_SOFTFP32. */
+    lj_assertA(0, "IR %04d with unused op %d",
+		  (int)(ir - as->ir) - REF_BIAS, ir->o);
+    break;
+#else
+  case IR_DIV: asm_div(as, ir); break;
+  case IR_POW: asm_pow(as, ir); break;
+  case IR_ABS: asm_abs(as, ir); break;
+  case IR_LDEXP: asm_ldexp(as, ir); break;
+  case IR_FPMATH: asm_fpmath(as, ir); break;
+  case IR_TOBIT: asm_tobit(as, ir); break;
+#endif
+  case IR_MIN: asm_min(as, ir); break;
+  case IR_MAX: asm_max(as, ir); break;
+
+  /* Overflow-checking arithmetic ops. */
+  case IR_ADDOV: asm_addov(as, ir); break;
+  case IR_SUBOV: asm_subov(as, ir); break;
+  case IR_MULOV: asm_mulov(as, ir); break;
+
+  /* Memory references. */
+  case IR_AREF: asm_aref(as, ir); break;
+  case IR_HREF: asm_href(as, ir, 0); break;
+  case IR_HREFK: asm_hrefk(as, ir); break;
+  case IR_NEWREF: asm_newref(as, ir); break;
+  case IR_UREFO: case IR_UREFC: asm_uref(as, ir); break;
+  case IR_FREF: asm_fref(as, ir); break;
+  case IR_TMPREF: asm_tmpref(as, ir); break;
+  case IR_STRREF: asm_strref(as, ir); break;
+  case IR_LREF: asm_lref(as, ir); break;
+
+  /* Loads and stores. */
+  case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+    asm_ahuvload(as, ir);
+    break;
+  case IR_FLOAD: asm_fload(as, ir); break;
+  case IR_XLOAD: asm_xload(as, ir); break;
+  case IR_SLOAD: asm_sload(as, ir); break;
+  case IR_ALEN: asm_alen(as, ir); break;
+
+  case IR_ASTORE: case IR_HSTORE: case IR_USTORE: asm_ahustore(as, ir); break;
+  case IR_FSTORE: asm_fstore(as, ir); break;
+  case IR_XSTORE: asm_xstore(as, ir); break;
+
+  /* Allocations. */
+  case IR_SNEW: case IR_XSNEW: asm_snew(as, ir); break;
+  case IR_TNEW: asm_tnew(as, ir); break;
+  case IR_TDUP: asm_tdup(as, ir); break;
+  case IR_CNEW: case IR_CNEWI:
+#if LJ_HASFFI
+    asm_cnew(as, ir);
+#else
+    lj_assertA(0, "IR %04d with unused op %d",
+		  (int)(ir - as->ir) - REF_BIAS, ir->o);
+#endif
+    break;
+
+  /* Buffer operations. */
+  case IR_BUFHDR: asm_bufhdr(as, ir); break;
+  case IR_BUFPUT: asm_bufput(as, ir); break;
+  case IR_BUFSTR: asm_bufstr(as, ir); break;
+
+  /* Write barriers. */
+  case IR_TBAR: asm_tbar(as, ir); break;
+  case IR_OBAR: asm_obar(as, ir); break;
+
+  /* Type conversions. */
+  case IR_CONV: asm_conv(as, ir); break;
+  case IR_TOSTR: asm_tostr(as, ir); break;
+  case IR_STRTO: asm_strto(as, ir); break;
+
+  /* Calls. */
+  case IR_CALLA:
+    as->gcsteps++;
+    /* fallthrough */
+  case IR_CALLN: case IR_CALLL: case IR_CALLS: asm_call(as, ir); break;
+  case IR_CALLXS: asm_callx(as, ir); break;
+  case IR_CARG: break;
+
+  default:
+    setintV(&as->J->errinfo, ir->o);
+    lj_trace_err_info(as->J, LJ_TRERR_NYIIR);
+    break;
+  }
+}
+
+/* -- Head of trace ------------------------------------------------------- */
+
+/* Head of a root trace. */
+static void asm_head_root(ASMState *as)
+{
+  int32_t spadj;
+  asm_head_root_base(as);
+  emit_setvmstate(as, (int32_t)as->T->traceno);
+  spadj = asm_stack_adjust(as);
+  as->T->spadjust = (uint16_t)spadj;
+  emit_spsub(as, spadj);
+  /* Root traces assume a checked stack for the starting proto. */
+  as->T->topslot = gcref(as->T->startpt)->pt.framesize;
+}
+
+/* Head of a side trace.
+**
+** The current simplistic algorithm requires that all slots inherited
+** from the parent are live in a register between pass 2 and pass 3. This
+** avoids the complexity of stack slot shuffling. But of course this may
+** overflow the register set in some cases and cause the dreaded error:
+** "NYI: register coalescing too complex". A refined algorithm is needed.
+*/
+static void asm_head_side(ASMState *as)
+{
+  IRRef1 sloadins[RID_MAX];
+  RegSet allow = RSET_ALL;  /* Inverse of all coalesced registers. */
+  RegSet live = RSET_EMPTY;  /* Live parent registers. */
+  IRIns *irp = &as->parent->ir[REF_BASE];  /* Parent base. */
+  int32_t spadj, spdelta;
+  int pass2 = 0;
+  int pass3 = 0;
+  IRRef i;
+
+  if (as->snapno && as->topslot > as->parent->topslot) {
+    /* Force snap #0 alloc to prevent register overwrite in stack check. */
+    asm_snap_alloc(as, 0);
+  }
+  allow = asm_head_side_base(as, irp, allow);
+
+  /* Scan all parent SLOADs and collect register dependencies. */
+  for (i = as->stopins; i > REF_BASE; i--) {
+    IRIns *ir = IR(i);
+    RegSP rs;
+    lj_assertA((ir->o == IR_SLOAD && (ir->op2 & IRSLOAD_PARENT)) ||
+	       (LJ_SOFTFP && ir->o == IR_HIOP) || ir->o == IR_PVAL,
+	       "IR %04d has bad parent op %d",
+	       (int)(ir - as->ir) - REF_BIAS, ir->o);
+    rs = as->parentmap[i - REF_FIRST];
+    if (ra_hasreg(ir->r)) {
+      rset_clear(allow, ir->r);
+      if (ra_hasspill(ir->s)) {
+	ra_save(as, ir, ir->r);
+	checkmclim(as);
+      }
+    } else if (ra_hasspill(ir->s)) {
+      irt_setmark(ir->t);
+      pass2 = 1;
+    }
+    if (ir->r == rs) {  /* Coalesce matching registers right now. */
+      ra_free(as, ir->r);
+    } else if (ra_hasspill(regsp_spill(rs))) {
+      if (ra_hasreg(ir->r))
+	pass3 = 1;
+    } else if (ra_used(ir)) {
+      sloadins[rs] = (IRRef1)i;
+      rset_set(live, rs);  /* Block live parent register. */
+    }
+  }
+
+  /* Calculate stack frame adjustment. */
+  spadj = asm_stack_adjust(as);
+  spdelta = spadj - (int32_t)as->parent->spadjust;
+  if (spdelta < 0) {  /* Don't shrink the stack frame. */
+    spadj = (int32_t)as->parent->spadjust;
+    spdelta = 0;
+  }
+  as->T->spadjust = (uint16_t)spadj;
+
+  /* Reload spilled target registers. */
+  if (pass2) {
+    for (i = as->stopins; i > REF_BASE; i--) {
+      IRIns *ir = IR(i);
+      if (irt_ismarked(ir->t)) {
+	RegSet mask;
+	Reg r;
+	RegSP rs;
+	irt_clearmark(ir->t);
+	rs = as->parentmap[i - REF_FIRST];
+	if (!ra_hasspill(regsp_spill(rs)))
+	  ra_sethint(ir->r, rs);  /* Hint may be gone, set it again. */
+	else if (sps_scale(regsp_spill(rs))+spdelta == sps_scale(ir->s))
+	  continue;  /* Same spill slot, do nothing. */
+	mask = ((!LJ_SOFTFP && irt_isfp(ir->t)) ? RSET_FPR : RSET_GPR) & allow;
+	if (mask == RSET_EMPTY)
+	  lj_trace_err(as->J, LJ_TRERR_NYICOAL);
+	r = ra_allocref(as, i, mask);
+	ra_save(as, ir, r);
+	rset_clear(allow, r);
+	if (r == rs) {  /* Coalesce matching registers right now. */
+	  ra_free(as, r);
+	  rset_clear(live, r);
+	} else if (ra_hasspill(regsp_spill(rs))) {
+	  pass3 = 1;
+	}
+	checkmclim(as);
+      }
+    }
+  }
+
+  /* Store trace number and adjust stack frame relative to the parent. */
+  emit_setvmstate(as, (int32_t)as->T->traceno);
+  emit_spsub(as, spdelta);
+
+#if !LJ_TARGET_X86ORX64
+  /* Restore BASE register from parent spill slot. */
+  if (ra_hasspill(irp->s))
+    emit_spload(as, IR(REF_BASE), IR(REF_BASE)->r, sps_scale(irp->s));
+#endif
+
+  /* Restore target registers from parent spill slots. */
+  if (pass3) {
+    RegSet work = ~as->freeset & RSET_ALL;
+    while (work) {
+      Reg r = rset_pickbot(work);
+      IRRef ref = regcost_ref(as->cost[r]);
+      RegSP rs = as->parentmap[ref - REF_FIRST];
+      rset_clear(work, r);
+      if (ra_hasspill(regsp_spill(rs))) {
+	int32_t ofs = sps_scale(regsp_spill(rs));
+	ra_free(as, r);
+	emit_spload(as, IR(ref), r, ofs);
+	checkmclim(as);
+      }
+    }
+  }
+
+  /* Shuffle registers to match up target regs with parent regs. */
+  for (;;) {
+    RegSet work;
+
+    /* Repeatedly coalesce free live registers by moving to their target. */
+    while ((work = as->freeset & live) != RSET_EMPTY) {
+      Reg rp = rset_pickbot(work);
+      IRIns *ir = IR(sloadins[rp]);
+      rset_clear(live, rp);
+      rset_clear(allow, rp);
+      ra_free(as, ir->r);
+      emit_movrr(as, ir, ir->r, rp);
+      checkmclim(as);
+    }
+
+    /* We're done if no live registers remain. */
+    if (live == RSET_EMPTY)
+      break;
+
+    /* Break cycles by renaming one target to a temp. register. */
+    if (live & RSET_GPR) {
+      RegSet tmpset = as->freeset & ~live & allow & RSET_GPR;
+      if (tmpset == RSET_EMPTY)
+	lj_trace_err(as->J, LJ_TRERR_NYICOAL);
+      ra_rename(as, rset_pickbot(live & RSET_GPR), rset_pickbot(tmpset));
+    }
+    if (!LJ_SOFTFP && (live & RSET_FPR)) {
+      RegSet tmpset = as->freeset & ~live & allow & RSET_FPR;
+      if (tmpset == RSET_EMPTY)
+	lj_trace_err(as->J, LJ_TRERR_NYICOAL);
+      ra_rename(as, rset_pickbot(live & RSET_FPR), rset_pickbot(tmpset));
+    }
+    checkmclim(as);
+    /* Continue with coalescing to fix up the broken cycle(s). */
+  }
+
+  /* Inherit top stack slot already checked by parent trace. */
+  as->T->topslot = as->parent->topslot;
+  if (as->topslot > as->T->topslot) {  /* Need to check for higher slot? */
+#ifdef EXITSTATE_CHECKEXIT
+    /* Highest exit + 1 indicates stack check. */
+    ExitNo exitno = as->T->nsnap;
+#else
+    /* Reuse the parent exit in the context of the parent trace. */
+    ExitNo exitno = as->J->exitno;
+#endif
+    as->T->topslot = (uint8_t)as->topslot;  /* Remember for child traces. */
+    asm_stack_check(as, as->topslot, irp, allow & RSET_GPR, exitno);
+  }
+}
+
+/* -- Tail of trace ------------------------------------------------------- */
+
+/* Get base slot for a snapshot. */
+static BCReg asm_baseslot(ASMState *as, SnapShot *snap, int *gotframe)
+{
+  SnapEntry *map = &as->T->snapmap[snap->mapofs];
+  MSize n;
+  for (n = snap->nent; n > 0; n--) {
+    SnapEntry sn = map[n-1];
+    if ((sn & SNAP_FRAME)) {
+      *gotframe = 1;
+      return snap_slot(sn) - LJ_FR2;
+    }
+  }
+  return 0;
+}
+
+/* Link to another trace. */
+static void asm_tail_link(ASMState *as)
+{
+  SnapNo snapno = as->T->nsnap-1;  /* Last snapshot. */
+  SnapShot *snap = &as->T->snap[snapno];
+  int gotframe = 0;
+  BCReg baseslot = asm_baseslot(as, snap, &gotframe);
+
+  as->topslot = snap->topslot;
+  checkmclim(as);
+  ra_allocref(as, REF_BASE, RID2RSET(RID_BASE));
+
+  if (as->T->link == 0) {
+    /* Setup fixed registers for exit to interpreter. */
+    const BCIns *pc = snap_pc(&as->T->snapmap[snap->mapofs + snap->nent]);
+    int32_t mres;
+    if (bc_op(*pc) == BC_JLOOP) {  /* NYI: find a better way to do this. */
+      BCIns *retpc = &traceref(as->J, bc_d(*pc))->startins;
+      if (bc_isret(bc_op(*retpc)))
+	pc = retpc;
+    }
+#if LJ_GC64
+    emit_loadu64(as, RID_LPC, u64ptr(pc));
+#else
+    ra_allockreg(as, i32ptr(J2GG(as->J)->dispatch), RID_DISPATCH);
+    ra_allockreg(as, i32ptr(pc), RID_LPC);
+#endif
+    mres = (int32_t)(snap->nslots - baseslot - LJ_FR2);
+    switch (bc_op(*pc)) {
+    case BC_CALLM: case BC_CALLMT:
+      mres -= (int32_t)(1 + LJ_FR2 + bc_a(*pc) + bc_c(*pc)); break;
+    case BC_RETM: mres -= (int32_t)(bc_a(*pc) + bc_d(*pc)); break;
+    case BC_TSETM: mres -= (int32_t)bc_a(*pc); break;
+    default: if (bc_op(*pc) < BC_FUNCF) mres = 0; break;
+    }
+    ra_allockreg(as, mres, RID_RET);  /* Return MULTRES or 0. */
+  } else if (baseslot) {
+    /* Save modified BASE for linking to trace with higher start frame. */
+    emit_setgl(as, RID_BASE, jit_base);
+  }
+  emit_addptr(as, RID_BASE, 8*(int32_t)baseslot);
+
+  if (as->J->ktrace) {  /* Patch ktrace slot with the final GCtrace pointer. */
+    setgcref(IR(as->J->ktrace)[LJ_GC64].gcr, obj2gco(as->J->curfinal));
+    IR(as->J->ktrace)->o = IR_KGC;
+  }
+
+  /* Sync the interpreter state with the on-trace state. */
+  asm_stack_restore(as, snap);
+
+  /* Root traces that add frames need to check the stack at the end. */
+  if (!as->parent && gotframe)
+    asm_stack_check(as, as->topslot, NULL, as->freeset & RSET_GPR, snapno);
+}
+
+/* -- Trace setup --------------------------------------------------------- */
+
+/* Clear reg/sp for all instructions and add register hints. */
+static void asm_setup_regsp(ASMState *as)
+{
+  GCtrace *T = as->T;
+  int sink = T->sinktags;
+  IRRef nins = T->nins;
+  IRIns *ir, *lastir;
+  int inloop;
+#if LJ_TARGET_ARM
+  uint32_t rload = 0xa6402a64;
+#endif
+
+  ra_setup(as);
+#if LJ_TARGET_ARM64
+  ra_setkref(as, RID_GL, (intptr_t)J2G(as->J));
+#endif
+
+  /* Clear reg/sp for constants. */
+  for (ir = IR(T->nk), lastir = IR(REF_BASE); ir < lastir; ir++) {
+    ir->prev = REGSP_INIT;
+    if (irt_is64(ir->t) && ir->o != IR_KNULL) {
+#if LJ_GC64
+      /* The false-positive of irt_is64() for ASMREF_L (REF_NIL) is OK here. */
+      ir->i = 0;  /* Will become non-zero only for RIP-relative addresses. */
+#else
+      /* Make life easier for backends by putting address of constant in i. */
+      ir->i = (int32_t)(intptr_t)(ir+1);
+#endif
+      ir++;
+    }
+  }
+
+  /* REF_BASE is used for implicit references to the BASE register. */
+  lastir->prev = REGSP_HINT(RID_BASE);
+
+  as->snaprename = nins;
+  as->snapref = nins;
+  as->snapno = T->nsnap;
+  as->snapalloc = 0;
+
+  as->stopins = REF_BASE;
+  as->orignins = nins;
+  as->curins = nins;
+
+  /* Setup register hints for parent link instructions. */
+  ir = IR(REF_FIRST);
+  if (as->parent) {
+    uint16_t *p;
+    lastir = lj_snap_regspmap(as->J, as->parent, as->J->exitno, ir);
+    if (lastir - ir > LJ_MAX_JSLOTS)
+      lj_trace_err(as->J, LJ_TRERR_NYICOAL);
+    as->stopins = (IRRef)((lastir-1) - as->ir);
+    for (p = as->parentmap; ir < lastir; ir++) {
+      RegSP rs = ir->prev;
+      *p++ = (uint16_t)rs;  /* Copy original parent RegSP to parentmap. */
+      if (!ra_hasspill(regsp_spill(rs)))
+	ir->prev = (uint16_t)REGSP_HINT(regsp_reg(rs));
+      else
+	ir->prev = REGSP_INIT;
+    }
+  }
+
+  inloop = 0;
+  as->evenspill = SPS_FIRST;
+  for (lastir = IR(nins); ir < lastir; ir++) {
+    if (sink) {
+      if (ir->r == RID_SINK)
+	continue;
+      if (ir->r == RID_SUNK) {  /* Revert after ASM restart. */
+	ir->r = RID_SINK;
+	continue;
+      }
+    }
+    switch (ir->o) {
+    case IR_LOOP:
+      inloop = 1;
+      break;
+#if LJ_TARGET_ARM
+    case IR_SLOAD:
+      if (!((ir->op2 & IRSLOAD_TYPECHECK) || (ir+1)->o == IR_HIOP))
+	break;
+      /* fallthrough */
+    case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+      if (!LJ_SOFTFP && irt_isnum(ir->t)) break;
+      ir->prev = (uint16_t)REGSP_HINT((rload & 15));
+      rload = lj_ror(rload, 4);
+      continue;
+    case IR_TMPREF:
+      if ((ir->op2 & IRTMPREF_OUT2) && as->evenspill < 4)
+	as->evenspill = 4;  /* TMPREF OUT2 needs two TValues on the stack. */
+      break;
+#endif
+    case IR_CALLXS: {
+      CCallInfo ci;
+      ci.flags = asm_callx_flags(as, ir);
+      ir->prev = asm_setup_call_slots(as, ir, &ci);
+      if (inloop)
+	as->modset |= RSET_SCRATCH;
+      continue;
+      }
+    case IR_CALLL:
+      /* lj_vm_next needs two TValues on the stack. */
+#if LJ_TARGET_X64 && LJ_ABI_WIN
+      if (ir->op2 == IRCALL_lj_vm_next && as->evenspill < SPS_FIRST + 4)
+	as->evenspill = SPS_FIRST + 4;
+#else
+      if (SPS_FIRST < 4 && ir->op2 == IRCALL_lj_vm_next && as->evenspill < 4)
+	as->evenspill = 4;
+#endif
+      /* fallthrough */
+    case IR_CALLN: case IR_CALLA: case IR_CALLS: {
+      const CCallInfo *ci = &lj_ir_callinfo[ir->op2];
+      ir->prev = asm_setup_call_slots(as, ir, ci);
+      if (inloop)
+	as->modset |= (ci->flags & CCI_NOFPRCLOBBER) ?
+		      (RSET_SCRATCH & ~RSET_FPR) : RSET_SCRATCH;
+      continue;
+      }
+    case IR_HIOP:
+      switch ((ir-1)->o) {
+#if LJ_SOFTFP && LJ_TARGET_ARM
+      case IR_SLOAD: case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+	if (ra_hashint((ir-1)->r)) {
+	  ir->prev = (ir-1)->prev + 1;
+	  continue;
+	}
+	break;
+#endif
+#if !LJ_SOFTFP && LJ_NEED_FP64 && LJ_32 && LJ_HASFFI
+      case IR_CONV:
+	if (irt_isfp((ir-1)->t)) {
+	  ir->prev = REGSP_HINT(RID_FPRET);
+	  continue;
+	}
+#endif
+      /* fallthrough */
+      case IR_CALLN: case IR_CALLL: case IR_CALLS: case IR_CALLXS:
+#if LJ_SOFTFP
+      case IR_MIN: case IR_MAX:
+#endif
+	(ir-1)->prev = REGSP_HINT(RID_RETLO);
+	ir->prev = REGSP_HINT(RID_RETHI);
+	continue;
+      default:
+	break;
+      }
+      break;
+#if LJ_SOFTFP
+    case IR_MIN: case IR_MAX:
+      if ((ir+1)->o != IR_HIOP) break;
+#endif
+    /* fallthrough */
+    /* C calls evict all scratch regs and return results in RID_RET. */
+    case IR_SNEW: case IR_XSNEW: case IR_NEWREF: case IR_BUFPUT:
+      if (REGARG_NUMGPR < 3 && as->evenspill < 3)
+	as->evenspill = 3;  /* lj_str_new and lj_tab_newkey need 3 args. */
+#if LJ_TARGET_X86 && LJ_HASFFI
+      if (0) {
+    case IR_CNEW:
+	if (ir->op2 != REF_NIL && as->evenspill < 4)
+	  as->evenspill = 4;  /* lj_cdata_newv needs 4 args. */
+      }
+      /* fallthrough */
+#else
+      /* fallthrough */
+    case IR_CNEW:
+#endif
+      /* fallthrough */
+    case IR_TNEW: case IR_TDUP: case IR_CNEWI: case IR_TOSTR:
+    case IR_BUFSTR:
+      ir->prev = REGSP_HINT(RID_RET);
+      if (inloop)
+	as->modset = RSET_SCRATCH;
+      continue;
+    case IR_STRTO: case IR_OBAR:
+      if (inloop)
+	as->modset = RSET_SCRATCH;
+      break;
+#if !LJ_SOFTFP
+#if !LJ_TARGET_X86ORX64
+    case IR_LDEXP:
+#endif
+#endif
+      /* fallthrough */
+    case IR_POW:
+      if (!LJ_SOFTFP && irt_isnum(ir->t)) {
+	if (inloop)
+	  as->modset |= RSET_SCRATCH;
+#if LJ_TARGET_X86
+	if (irt_isnum(IR(ir->op2)->t)) {
+	  if (as->evenspill < 4)  /* Leave room to call pow(). */
+	    as->evenspill = 4;
+	}
+	break;
+#else
+	ir->prev = REGSP_HINT(RID_FPRET);
+	continue;
+#endif
+      }
+      /* fallthrough */ /* for integer POW */
+    case IR_DIV: case IR_MOD:
+      if ((LJ_64 && LJ_SOFTFP) || !irt_isnum(ir->t)) {
+	ir->prev = REGSP_HINT(RID_RET);
+	if (inloop)
+	  as->modset |= (RSET_SCRATCH & RSET_GPR);
+	continue;
+      }
+      break;
+#if LJ_64 && LJ_SOFTFP
+    case IR_ADD: case IR_SUB: case IR_MUL:
+      if (irt_isnum(ir->t)) {
+	ir->prev = REGSP_HINT(RID_RET);
+	if (inloop)
+	  as->modset |= (RSET_SCRATCH & RSET_GPR);
+	continue;
+      }
+      break;
+#endif
+    case IR_FPMATH:
+#if LJ_TARGET_X86ORX64
+      if (ir->op2 <= IRFPM_TRUNC) {
+	if (!(as->flags & JIT_F_SSE4_1)) {
+	  ir->prev = REGSP_HINT(RID_XMM0);
+	  if (inloop)
+	    as->modset |= RSET_RANGE(RID_XMM0, RID_XMM3+1)|RID2RSET(RID_EAX);
+	  continue;
+	}
+	break;
+      }
+#endif
+      if (inloop)
+	as->modset |= RSET_SCRATCH;
+#if LJ_TARGET_X86
+      break;
+#else
+      ir->prev = REGSP_HINT(RID_FPRET);
+      continue;
+#endif
+#if LJ_TARGET_X86ORX64
+    /* Non-constant shift counts need to be in RID_ECX on x86/x64. */
+    case IR_BSHL: case IR_BSHR: case IR_BSAR:
+      if ((as->flags & JIT_F_BMI2))  /* Except if BMI2 is available. */
+	break;
+      /* fallthrough */
+    case IR_BROL: case IR_BROR:
+      if (!irref_isk(ir->op2) && !ra_hashint(IR(ir->op2)->r)) {
+	IR(ir->op2)->r = REGSP_HINT(RID_ECX);
+	if (inloop)
+	  rset_set(as->modset, RID_ECX);
+      }
+      break;
+#endif
+    /* Do not propagate hints across type conversions or loads. */
+    case IR_TOBIT:
+    case IR_XLOAD:
+#if !LJ_TARGET_ARM
+    case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+#endif
+      break;
+    case IR_CONV:
+      if (irt_isfp(ir->t) || (ir->op2 & IRCONV_SRCMASK) == IRT_NUM ||
+	  (ir->op2 & IRCONV_SRCMASK) == IRT_FLOAT)
+	break;
+      /* fallthrough */
+    default:
+      /* Propagate hints across likely 'op reg, imm' or 'op reg'. */
+      if (irref_isk(ir->op2) && !irref_isk(ir->op1) &&
+	  ra_hashint(regsp_reg(IR(ir->op1)->prev))) {
+	ir->prev = IR(ir->op1)->prev;
+	continue;
+      }
+      break;
+    }
+    ir->prev = REGSP_INIT;
+  }
+  if ((as->evenspill & 1))
+    as->oddspill = as->evenspill++;
+  else
+    as->oddspill = 0;
+}
+
+/* -- Assembler core ------------------------------------------------------ */
+
+/* Assemble a trace. */
+void lj_asm_trace(jit_State *J, GCtrace *T)
+{
+  ASMState as_;
+  ASMState *as = &as_;
+
+  /* Remove nops/renames left over from ASM restart due to LJ_TRERR_MCODELM. */
+  {
+    IRRef nins = T->nins;
+    IRIns *ir = &T->ir[nins-1];
+    if (ir->o == IR_NOP || ir->o == IR_RENAME) {
+      do { ir--; nins--; } while (ir->o == IR_NOP || ir->o == IR_RENAME);
+      T->nins = nins;
+    }
+  }
+
+  /* Ensure an initialized instruction beyond the last one for HIOP checks. */
+  /* This also allows one RENAME to be added without reallocating curfinal. */
+  as->orignins = lj_ir_nextins(J);
+  lj_ir_nop(&J->cur.ir[as->orignins]);
+
+  /* Setup initial state. Copy some fields to reduce indirections. */
+  as->J = J;
+  as->T = T;
+  J->curfinal = lj_trace_alloc(J->L, T);  /* This copies the IR, too. */
+  as->flags = J->flags;
+  as->loopref = J->loopref;
+  as->realign = NULL;
+  as->loopinv = 0;
+  as->parent = J->parent ? traceref(J, J->parent) : NULL;
+
+  /* Reserve MCode memory. */
+  as->mctop = as->mctoporig = lj_mcode_reserve(J, &as->mcbot);
+  as->mcp = as->mctop;
+  as->mclim = as->mcbot + MCLIM_REDZONE;
+  asm_setup_target(as);
+
+  /*
+  ** This is a loop, because the MCode may have to be (re-)assembled
+  ** multiple times:
+  **
+  ** 1. as->realign is set (and the assembly aborted), if the arch-specific
+  **    backend wants the MCode to be aligned differently.
+  **
+  **    This is currently only the case on x86/x64, where small loops get
+  **    an aligned loop body plus a short branch. Not much effort is wasted,
+  **    because the abort happens very quickly and only once.
+  **
+  ** 2. The IR is immovable, since the MCode embeds pointers to various
+  **    constants inside the IR. But RENAMEs may need to be added to the IR
+  **    during assembly, which might grow and reallocate the IR. We check
+  **    at the end if the IR (in J->cur.ir) has actually grown, resize the
+  **    copy (in J->curfinal.ir) and try again.
+  **
+  **    95% of all traces have zero RENAMEs, 3% have one RENAME, 1.5% have
+  **    2 RENAMEs and only 0.5% have more than that. That's why we opt to
+  **    always have one spare slot in the IR (see above), which means we
+  **    have to redo the assembly for only ~2% of all traces.
+  **
+  **    Very, very rarely, this needs to be done repeatedly, since the
+  **    location of constants inside the IR (actually, reachability from
+  **    a global pointer) may affect register allocation and thus the
+  **    number of RENAMEs.
+  */
+  for (;;) {
+    as->mcp = as->mctop;
+#ifdef LUA_USE_ASSERT
+    as->mcp_prev = as->mcp;
+#endif
+    as->ir = J->curfinal->ir;  /* Use the copied IR. */
+    as->curins = J->cur.nins = as->orignins;
+
+    RA_DBG_START();
+    RA_DBGX((as, "===== STOP ====="));
+
+    /* General trace setup. Emit tail of trace. */
+    asm_tail_prep(as);
+    as->mcloop = NULL;
+    as->flagmcp = NULL;
+    as->topslot = 0;
+    as->gcsteps = 0;
+    as->sectref = as->loopref;
+    as->fuseref = (as->flags & JIT_F_OPT_FUSE) ? as->loopref : FUSE_DISABLED;
+    asm_setup_regsp(as);
+    if (!as->loopref)
+      asm_tail_link(as);
+
+    /* Assemble a trace in linear backwards order. */
+    for (as->curins--; as->curins > as->stopins; as->curins--) {
+      IRIns *ir = IR(as->curins);
+      /* 64 bit types handled by SPLIT for 32 bit archs. */
+      lj_assertA(!(LJ_32 && irt_isint64(ir->t)),
+		 "IR %04d has unsplit 64 bit type",
+		 (int)(ir - as->ir) - REF_BIAS);
+      asm_snap_prev(as);
+      if (!ra_used(ir) && !ir_sideeff(ir) && (as->flags & JIT_F_OPT_DCE))
+	continue;  /* Dead-code elimination can be soooo easy. */
+      if (irt_isguard(ir->t))
+	asm_snap_prep(as);
+      RA_DBG_REF();
+      checkmclim(as);
+      asm_ir(as, ir);
+    }
+
+    if (as->realign && J->curfinal->nins >= T->nins)
+      continue;  /* Retry in case only the MCode needs to be realigned. */
+
+    /* Emit head of trace. */
+    RA_DBG_REF();
+    checkmclim(as);
+    if (as->gcsteps > 0) {
+      as->curins = as->T->snap[0].ref;
+      asm_snap_prep(as);  /* The GC check is a guard. */
+      asm_gc_check(as);
+      as->curins = as->stopins;
+    }
+    ra_evictk(as);
+    if (as->parent)
+      asm_head_side(as);
+    else
+      asm_head_root(as);
+    asm_phi_fixup(as);
+
+    if (J->curfinal->nins >= T->nins) {  /* IR didn't grow? */
+      lj_assertA(J->curfinal->nk == T->nk, "unexpected IR constant growth");
+      memcpy(J->curfinal->ir + as->orignins, T->ir + as->orignins,
+	     (T->nins - as->orignins) * sizeof(IRIns));  /* Copy RENAMEs. */
+      T->nins = J->curfinal->nins;
+      /* Fill mcofs of any unprocessed snapshots. */
+      as->curins = REF_FIRST;
+      asm_snap_prev(as);
+      break;  /* Done. */
+    }
+
+    /* Otherwise try again with a bigger IR. */
+    lj_trace_free(J2G(J), J->curfinal);
+    J->curfinal = NULL;  /* In case lj_trace_alloc() OOMs. */
+    J->curfinal = lj_trace_alloc(J->L, T);
+    as->realign = NULL;
+  }
+
+  RA_DBGX((as, "===== START ===="));
+  RA_DBG_FLUSH();
+  if (as->freeset != RSET_ALL)
+    lj_trace_err(as->J, LJ_TRERR_BADRA);  /* Ouch! Should never happen. */
+
+  /* Set trace entry point before fixing up tail to allow link to self. */
+  T->mcode = as->mcp;
+  T->mcloop = as->mcloop ? (MSize)((char *)as->mcloop - (char *)as->mcp) : 0;
+  if (as->loopref)
+    asm_loop_tail_fixup(as);
+  else
+    asm_tail_fixup(as, T->link);  /* Note: this may change as->mctop! */
+  T->szmcode = (MSize)((char *)as->mctop - (char *)as->mcp);
+  asm_snap_fixup_mcofs(as);
+#if LJ_TARGET_MCODE_FIXUP
+  asm_mcode_fixup(T->mcode, T->szmcode);
+#endif
+  lj_mcode_sync(T->mcode, as->mctoporig);
+}
+
+#undef IR
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_asm.h b/libs/luajit-cmake/luajit/src/lj_asm.h
new file mode 100644
index 0000000..f0a4f2d
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_asm.h
@@ -0,0 +1,17 @@
+/*
+** IR assembler (SSA IR -> machine code).
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_ASM_H
+#define _LJ_ASM_H
+
+#include "lj_jit.h"
+
+#if LJ_HASJIT
+LJ_FUNC void lj_asm_trace(jit_State *J, GCtrace *T);
+LJ_FUNC void lj_asm_patchexit(jit_State *J, GCtrace *T, ExitNo exitno,
+			      MCode *target);
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_asm_arm.h b/libs/luajit-cmake/luajit/src/lj_asm_arm.h
new file mode 100644
index 0000000..326330f
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_asm_arm.h
@@ -0,0 +1,2286 @@
+/*
+** ARM IR assembler (SSA IR -> machine code).
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* -- Register allocator extensions --------------------------------------- */
+
+/* Allocate a register with a hint. */
+static Reg ra_hintalloc(ASMState *as, IRRef ref, Reg hint, RegSet allow)
+{
+  Reg r = IR(ref)->r;
+  if (ra_noreg(r)) {
+    if (!ra_hashint(r) && !iscrossref(as, ref))
+      ra_sethint(IR(ref)->r, hint);  /* Propagate register hint. */
+    r = ra_allocref(as, ref, allow);
+  }
+  ra_noweak(as, r);
+  return r;
+}
+
+/* Allocate a scratch register pair. */
+static Reg ra_scratchpair(ASMState *as, RegSet allow)
+{
+  RegSet pick1 = as->freeset & allow;
+  RegSet pick2 = pick1 & (pick1 >> 1) & RSET_GPREVEN;
+  Reg r;
+  if (pick2) {
+    r = rset_picktop(pick2);
+  } else {
+    RegSet pick = pick1 & (allow >> 1) & RSET_GPREVEN;
+    if (pick) {
+      r = rset_picktop(pick);
+      ra_restore(as, regcost_ref(as->cost[r+1]));
+    } else {
+      pick = pick1 & (allow << 1) & RSET_GPRODD;
+      if (pick) {
+	r = ra_restore(as, regcost_ref(as->cost[rset_picktop(pick)-1]));
+      } else {
+	r = ra_evict(as, allow & (allow >> 1) & RSET_GPREVEN);
+	ra_restore(as, regcost_ref(as->cost[r+1]));
+      }
+    }
+  }
+  lj_assertA(rset_test(RSET_GPREVEN, r), "odd reg %d", r);
+  ra_modified(as, r);
+  ra_modified(as, r+1);
+  RA_DBGX((as, "scratchpair    $r $r", r, r+1));
+  return r;
+}
+
+#if !LJ_SOFTFP
+/* Allocate two source registers for three-operand instructions. */
+static Reg ra_alloc2(ASMState *as, IRIns *ir, RegSet allow)
+{
+  IRIns *irl = IR(ir->op1), *irr = IR(ir->op2);
+  Reg left = irl->r, right = irr->r;
+  if (ra_hasreg(left)) {
+    ra_noweak(as, left);
+    if (ra_noreg(right))
+      right = ra_allocref(as, ir->op2, rset_exclude(allow, left));
+    else
+      ra_noweak(as, right);
+  } else if (ra_hasreg(right)) {
+    ra_noweak(as, right);
+    left = ra_allocref(as, ir->op1, rset_exclude(allow, right));
+  } else if (ra_hashint(right)) {
+    right = ra_allocref(as, ir->op2, allow);
+    left = ra_alloc1(as, ir->op1, rset_exclude(allow, right));
+  } else {
+    left = ra_allocref(as, ir->op1, allow);
+    right = ra_alloc1(as, ir->op2, rset_exclude(allow, left));
+  }
+  return left | (right << 8);
+}
+#endif
+
+/* -- Guard handling ------------------------------------------------------ */
+
+/* Generate an exit stub group at the bottom of the reserved MCode memory. */
+static MCode *asm_exitstub_gen(ASMState *as, ExitNo group)
+{
+  MCode *mxp = as->mcbot;
+  int i;
+  if (mxp + 4*4+4*EXITSTUBS_PER_GROUP >= as->mctop)
+    asm_mclimit(as);
+  /* str lr, [sp]; bl ->vm_exit_handler; .long DISPATCH_address, group. */
+  *mxp++ = ARMI_STR|ARMI_LS_P|ARMI_LS_U|ARMF_D(RID_LR)|ARMF_N(RID_SP);
+  *mxp = ARMI_BL|((((MCode *)(void *)lj_vm_exit_handler-mxp)-2)&0x00ffffffu);
+  mxp++;
+  *mxp++ = (MCode)i32ptr(J2GG(as->J)->dispatch);  /* DISPATCH address */
+  *mxp++ = group*EXITSTUBS_PER_GROUP;
+  for (i = 0; i < EXITSTUBS_PER_GROUP; i++)
+    *mxp++ = ARMI_B|((-6-i)&0x00ffffffu);
+  lj_mcode_sync(as->mcbot, mxp);
+  lj_mcode_commitbot(as->J, mxp);
+  as->mcbot = mxp;
+  as->mclim = as->mcbot + MCLIM_REDZONE;
+  return mxp - EXITSTUBS_PER_GROUP;
+}
+
+/* Setup all needed exit stubs. */
+static void asm_exitstub_setup(ASMState *as, ExitNo nexits)
+{
+  ExitNo i;
+  if (nexits >= EXITSTUBS_PER_GROUP*LJ_MAX_EXITSTUBGR)
+    lj_trace_err(as->J, LJ_TRERR_SNAPOV);
+  for (i = 0; i < (nexits+EXITSTUBS_PER_GROUP-1)/EXITSTUBS_PER_GROUP; i++)
+    if (as->J->exitstubgroup[i] == NULL)
+      as->J->exitstubgroup[i] = asm_exitstub_gen(as, i);
+}
+
+/* Emit conditional branch to exit for guard. */
+static void asm_guardcc(ASMState *as, ARMCC cc)
+{
+  MCode *target = exitstub_addr(as->J, as->snapno);
+  MCode *p = as->mcp;
+  if (LJ_UNLIKELY(p == as->invmcp)) {
+    as->loopinv = 1;
+    *p = ARMI_BL | ((target-p-2) & 0x00ffffffu);
+    emit_branch(as, ARMF_CC(ARMI_B, cc^1), p+1);
+    return;
+  }
+  emit_branch(as, ARMF_CC(ARMI_BL, cc), target);
+}
+
+/* -- Operand fusion ------------------------------------------------------ */
+
+/* Limit linear search to this distance. Avoids O(n^2) behavior. */
+#define CONFLICT_SEARCH_LIM	31
+
+/* Check if there's no conflicting instruction between curins and ref. */
+static int noconflict(ASMState *as, IRRef ref, IROp conflict)
+{
+  IRIns *ir = as->ir;
+  IRRef i = as->curins;
+  if (i > ref + CONFLICT_SEARCH_LIM)
+    return 0;  /* Give up, ref is too far away. */
+  while (--i > ref)
+    if (ir[i].o == conflict)
+      return 0;  /* Conflict found. */
+  return 1;  /* Ok, no conflict. */
+}
+
+/* Fuse the array base of colocated arrays. */
+static int32_t asm_fuseabase(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (ir->o == IR_TNEW && ir->op1 <= LJ_MAX_COLOSIZE &&
+      !neverfuse(as) && noconflict(as, ref, IR_NEWREF))
+    return (int32_t)sizeof(GCtab);
+  return 0;
+}
+
+/* Fuse array/hash/upvalue reference into register+offset operand. */
+static Reg asm_fuseahuref(ASMState *as, IRRef ref, int32_t *ofsp, RegSet allow,
+			  int lim)
+{
+  IRIns *ir = IR(ref);
+  if (ra_noreg(ir->r)) {
+    if (ir->o == IR_AREF) {
+      if (mayfuse(as, ref)) {
+	if (irref_isk(ir->op2)) {
+	  IRRef tab = IR(ir->op1)->op1;
+	  int32_t ofs = asm_fuseabase(as, tab);
+	  IRRef refa = ofs ? tab : ir->op1;
+	  ofs += 8*IR(ir->op2)->i;
+	  if (ofs > -lim && ofs < lim) {
+	    *ofsp = ofs;
+	    return ra_alloc1(as, refa, allow);
+	  }
+	}
+      }
+    } else if (ir->o == IR_HREFK) {
+      if (mayfuse(as, ref)) {
+	int32_t ofs = (int32_t)(IR(ir->op2)->op2 * sizeof(Node));
+	if (ofs < lim) {
+	  *ofsp = ofs;
+	  return ra_alloc1(as, ir->op1, allow);
+	}
+      }
+    } else if (ir->o == IR_UREFC) {
+      if (irref_isk(ir->op1)) {
+	GCfunc *fn = ir_kfunc(IR(ir->op1));
+	int32_t ofs = i32ptr(&gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.tv);
+	*ofsp = (ofs & 255);  /* Mask out less bits to allow LDRD. */
+	return ra_allock(as, (ofs & ~255), allow);
+      }
+    } else if (ir->o == IR_TMPREF) {
+      *ofsp = 0;
+      return RID_SP;
+    }
+  }
+  *ofsp = 0;
+  return ra_alloc1(as, ref, allow);
+}
+
+/* Fuse m operand into arithmetic/logic instructions. */
+static uint32_t asm_fuseopm(ASMState *as, ARMIns ai, IRRef ref, RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  if (ra_hasreg(ir->r)) {
+    ra_noweak(as, ir->r);
+    return ARMF_M(ir->r);
+  } else if (irref_isk(ref)) {
+    uint32_t k = emit_isk12(ai, ir->i);
+    if (k)
+      return k;
+  } else if (mayfuse(as, ref)) {
+    if (ir->o >= IR_BSHL && ir->o <= IR_BROR) {
+      Reg m = ra_alloc1(as, ir->op1, allow);
+      ARMShift sh = ir->o == IR_BSHL ? ARMSH_LSL :
+		    ir->o == IR_BSHR ? ARMSH_LSR :
+		    ir->o == IR_BSAR ? ARMSH_ASR : ARMSH_ROR;
+      if (irref_isk(ir->op2)) {
+	return m | ARMF_SH(sh, (IR(ir->op2)->i & 31));
+      } else {
+	Reg s = ra_alloc1(as, ir->op2, rset_exclude(allow, m));
+	return m | ARMF_RSH(sh, s);
+      }
+    } else if (ir->o == IR_ADD && ir->op1 == ir->op2) {
+      Reg m = ra_alloc1(as, ir->op1, allow);
+      return m | ARMF_SH(ARMSH_LSL, 1);
+    }
+  }
+  return ra_allocref(as, ref, allow);
+}
+
+/* Fuse shifts into loads/stores. Only bother with BSHL 2 => lsl #2. */
+static IRRef asm_fuselsl2(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (ra_noreg(ir->r) && mayfuse(as, ref) && ir->o == IR_BSHL &&
+      irref_isk(ir->op2) && IR(ir->op2)->i == 2)
+    return ir->op1;
+  return 0;  /* No fusion. */
+}
+
+/* Fuse XLOAD/XSTORE reference into load/store operand. */
+static void asm_fusexref(ASMState *as, ARMIns ai, Reg rd, IRRef ref,
+			 RegSet allow, int32_t ofs)
+{
+  IRIns *ir = IR(ref);
+  Reg base;
+  if (ra_noreg(ir->r) && canfuse(as, ir)) {
+    int32_t lim = (!LJ_SOFTFP && (ai & 0x08000000)) ? 1024 :
+		   (ai & 0x04000000) ? 4096 : 256;
+    if (ir->o == IR_ADD) {
+      int32_t ofs2;
+      if (irref_isk(ir->op2) &&
+	  (ofs2 = ofs + IR(ir->op2)->i) > -lim && ofs2 < lim &&
+	  (!(!LJ_SOFTFP && (ai & 0x08000000)) || !(ofs2 & 3))) {
+	ofs = ofs2;
+	ref = ir->op1;
+      } else if (ofs == 0 && !(!LJ_SOFTFP && (ai & 0x08000000))) {
+	IRRef lref = ir->op1, rref = ir->op2;
+	Reg rn, rm;
+	if ((ai & 0x04000000)) {
+	  IRRef sref = asm_fuselsl2(as, rref);
+	  if (sref) {
+	    rref = sref;
+	    ai |= ARMF_SH(ARMSH_LSL, 2);
+	  } else if ((sref = asm_fuselsl2(as, lref)) != 0) {
+	    lref = rref;
+	    rref = sref;
+	    ai |= ARMF_SH(ARMSH_LSL, 2);
+	  }
+	}
+	rn = ra_alloc1(as, lref, allow);
+	rm = ra_alloc1(as, rref, rset_exclude(allow, rn));
+	if ((ai & 0x04000000)) ai |= ARMI_LS_R;
+	emit_dnm(as, ai|ARMI_LS_P|ARMI_LS_U, rd, rn, rm);
+	return;
+      }
+    } else if (ir->o == IR_STRREF && !(!LJ_SOFTFP && (ai & 0x08000000))) {
+      lj_assertA(ofs == 0, "bad usage");
+      ofs = (int32_t)sizeof(GCstr);
+      if (irref_isk(ir->op2)) {
+	ofs += IR(ir->op2)->i;
+	ref = ir->op1;
+      } else if (irref_isk(ir->op1)) {
+	ofs += IR(ir->op1)->i;
+	ref = ir->op2;
+      } else {
+	/* NYI: Fuse ADD with constant. */
+	Reg rn = ra_alloc1(as, ir->op1, allow);
+	uint32_t m = asm_fuseopm(as, 0, ir->op2, rset_exclude(allow, rn));
+	if ((ai & 0x04000000))
+	  emit_lso(as, ai, rd, rd, ofs);
+	else
+	  emit_lsox(as, ai, rd, rd, ofs);
+	emit_dn(as, ARMI_ADD^m, rd, rn);
+	return;
+      }
+      if (ofs <= -lim || ofs >= lim) {
+	Reg rn = ra_alloc1(as, ref, allow);
+	Reg rm = ra_allock(as, ofs, rset_exclude(allow, rn));
+	if ((ai & 0x04000000)) ai |= ARMI_LS_R;
+	emit_dnm(as, ai|ARMI_LS_P|ARMI_LS_U, rd, rn, rm);
+	return;
+      }
+    }
+  }
+  base = ra_alloc1(as, ref, allow);
+#if !LJ_SOFTFP
+  if ((ai & 0x08000000))
+    emit_vlso(as, ai, rd, base, ofs);
+  else
+#endif
+  if ((ai & 0x04000000))
+    emit_lso(as, ai, rd, base, ofs);
+  else
+    emit_lsox(as, ai, rd, base, ofs);
+}
+
+#if !LJ_SOFTFP
+/* Fuse to multiply-add/sub instruction. */
+static int asm_fusemadd(ASMState *as, IRIns *ir, ARMIns ai, ARMIns air)
+{
+  IRRef lref = ir->op1, rref = ir->op2;
+  IRIns *irm;
+  if (lref != rref &&
+      ((mayfuse(as, lref) && (irm = IR(lref), irm->o == IR_MUL) &&
+	ra_noreg(irm->r)) ||
+       (mayfuse(as, rref) && (irm = IR(rref), irm->o == IR_MUL) &&
+	(rref = lref, ai = air, ra_noreg(irm->r))))) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    Reg add = ra_hintalloc(as, rref, dest, RSET_FPR);
+    Reg right, left = ra_alloc2(as, irm,
+			rset_exclude(rset_exclude(RSET_FPR, dest), add));
+    right = (left >> 8); left &= 255;
+    emit_dnm(as, ai, (dest & 15), (left & 15), (right & 15));
+    if (dest != add) emit_dm(as, ARMI_VMOV_D, (dest & 15), (add & 15));
+    return 1;
+  }
+  return 0;
+}
+#endif
+
+/* -- Calls --------------------------------------------------------------- */
+
+/* Generate a call to a C function. */
+static void asm_gencall(ASMState *as, const CCallInfo *ci, IRRef *args)
+{
+  uint32_t n, nargs = CCI_XNARGS(ci);
+  int32_t ofs = 0;
+#if LJ_SOFTFP
+  Reg gpr = REGARG_FIRSTGPR;
+#else
+  Reg gpr, fpr = REGARG_FIRSTFPR, fprodd = 0;
+#endif
+  if ((void *)ci->func)
+    emit_call(as, (void *)ci->func);
+#if !LJ_SOFTFP
+  for (gpr = REGARG_FIRSTGPR; gpr <= REGARG_LASTGPR; gpr++)
+    as->cost[gpr] = REGCOST(~0u, ASMREF_L);
+  gpr = REGARG_FIRSTGPR;
+#endif
+  for (n = 0; n < nargs; n++) {  /* Setup args. */
+    IRRef ref = args[n];
+    IRIns *ir = IR(ref);
+#if !LJ_SOFTFP
+    if (ref && irt_isfp(ir->t)) {
+      RegSet of = as->freeset;
+      Reg src;
+      if (!LJ_ABI_SOFTFP && !(ci->flags & CCI_VARARG)) {
+	if (irt_isnum(ir->t)) {
+	  if (fpr <= REGARG_LASTFPR) {
+	    ra_leftov(as, fpr, ref);
+	    fpr++;
+	    continue;
+	  }
+	} else if (fprodd) {  /* Ick. */
+	  src = ra_alloc1(as, ref, RSET_FPR);
+	  emit_dm(as, ARMI_VMOV_S, (fprodd & 15), (src & 15) | 0x00400000);
+	  fprodd = 0;
+	  continue;
+	} else if (fpr <= REGARG_LASTFPR) {
+	  ra_leftov(as, fpr, ref);
+	  fprodd = fpr++;
+	  continue;
+	}
+	/* Workaround to protect argument GPRs from being used for remat. */
+	as->freeset &= ~RSET_RANGE(REGARG_FIRSTGPR, REGARG_LASTGPR+1);
+	src = ra_alloc1(as, ref, RSET_FPR);  /* May alloc GPR to remat FPR. */
+	as->freeset |= (of & RSET_RANGE(REGARG_FIRSTGPR, REGARG_LASTGPR+1));
+	fprodd = 0;
+	goto stackfp;
+      }
+      /* Workaround to protect argument GPRs from being used for remat. */
+      as->freeset &= ~RSET_RANGE(REGARG_FIRSTGPR, REGARG_LASTGPR+1);
+      src = ra_alloc1(as, ref, RSET_FPR);  /* May alloc GPR to remat FPR. */
+      as->freeset |= (of & RSET_RANGE(REGARG_FIRSTGPR, REGARG_LASTGPR+1));
+      if (irt_isnum(ir->t)) gpr = (gpr+1) & ~1u;
+      if (gpr <= REGARG_LASTGPR) {
+	lj_assertA(rset_test(as->freeset, gpr),
+		   "reg %d not free", gpr);  /* Must have been evicted. */
+	if (irt_isnum(ir->t)) {
+	  lj_assertA(rset_test(as->freeset, gpr+1),
+		     "reg %d not free", gpr+1);  /* Ditto. */
+	  emit_dnm(as, ARMI_VMOV_RR_D, gpr, gpr+1, (src & 15));
+	  gpr += 2;
+	} else {
+	  emit_dn(as, ARMI_VMOV_R_S, gpr, (src & 15));
+	  gpr++;
+	}
+      } else {
+      stackfp:
+	if (irt_isnum(ir->t)) ofs = (ofs + 4) & ~4;
+	emit_spstore(as, ir, src, ofs);
+	ofs += irt_isnum(ir->t) ? 8 : 4;
+      }
+    } else
+#endif
+    {
+      if (gpr <= REGARG_LASTGPR) {
+	lj_assertA(rset_test(as->freeset, gpr),
+		   "reg %d not free", gpr);  /* Must have been evicted. */
+	if (ref) ra_leftov(as, gpr, ref);
+	gpr++;
+      } else {
+	if (ref) {
+	  Reg r = ra_alloc1(as, ref, RSET_GPR);
+	  emit_spstore(as, ir, r, ofs);
+	}
+	ofs += 4;
+      }
+    }
+  }
+}
+
+/* Setup result reg/sp for call. Evict scratch regs. */
+static void asm_setupresult(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  RegSet drop = RSET_SCRATCH;
+  int hiop = ((ir+1)->o == IR_HIOP && !irt_isnil((ir+1)->t));
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r);  /* Dest reg handled below. */
+  if (hiop && ra_hasreg((ir+1)->r))
+    rset_clear(drop, (ir+1)->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop);  /* Evictions must be performed first. */
+  if (ra_used(ir)) {
+    lj_assertA(!irt_ispri(ir->t), "PRI dest");
+    if (!LJ_SOFTFP && irt_isfp(ir->t)) {
+      if (LJ_ABI_SOFTFP || (ci->flags & (CCI_CASTU64|CCI_VARARG))) {
+	Reg dest = (ra_dest(as, ir, RSET_FPR) & 15);
+	if (irt_isnum(ir->t))
+	  emit_dnm(as, ARMI_VMOV_D_RR, RID_RETLO, RID_RETHI, dest);
+	else
+	  emit_dn(as, ARMI_VMOV_S_R, RID_RET, dest);
+      } else {
+	ra_destreg(as, ir, RID_FPRET);
+      }
+    } else if (hiop) {
+      ra_destpair(as, ir);
+    } else {
+      ra_destreg(as, ir, RID_RET);
+    }
+  }
+  UNUSED(ci);
+}
+
+static void asm_callx(ASMState *as, IRIns *ir)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  CCallInfo ci;
+  IRRef func;
+  IRIns *irf;
+  ci.flags = asm_callx_flags(as, ir);
+  asm_collectargs(as, ir, &ci, args);
+  asm_setupresult(as, ir, &ci);
+  func = ir->op2; irf = IR(func);
+  if (irf->o == IR_CARG) { func = irf->op1; irf = IR(func); }
+  if (irref_isk(func)) {  /* Call to constant address. */
+    ci.func = (ASMFunction)(void *)(irf->i);
+  } else {  /* Need a non-argument register for indirect calls. */
+    Reg freg = ra_alloc1(as, func, RSET_RANGE(RID_R4, RID_R12+1));
+    emit_m(as, ARMI_BLXr, freg);
+    ci.func = (ASMFunction)(void *)0;
+  }
+  asm_gencall(as, &ci, args);
+}
+
+/* -- Returns ------------------------------------------------------------- */
+
+/* Return to lower frame. Guard that it goes to the right spot. */
+static void asm_retf(ASMState *as, IRIns *ir)
+{
+  Reg base = ra_alloc1(as, REF_BASE, RSET_GPR);
+  void *pc = ir_kptr(IR(ir->op2));
+  int32_t delta = 1+LJ_FR2+bc_a(*((const BCIns *)pc - 1));
+  as->topslot -= (BCReg)delta;
+  if ((int32_t)as->topslot < 0) as->topslot = 0;
+  irt_setmark(IR(REF_BASE)->t);  /* Children must not coalesce with BASE reg. */
+  /* Need to force a spill on REF_BASE now to update the stack slot. */
+  emit_lso(as, ARMI_STR, base, RID_SP, ra_spill(as, IR(REF_BASE)));
+  emit_setgl(as, base, jit_base);
+  emit_addptr(as, base, -8*delta);
+  asm_guardcc(as, CC_NE);
+  emit_nm(as, ARMI_CMP, RID_TMP,
+	  ra_allock(as, i32ptr(pc), rset_exclude(RSET_GPR, base)));
+  emit_lso(as, ARMI_LDR, RID_TMP, base, -4);
+}
+
+/* -- Buffer operations --------------------------------------------------- */
+
+#if LJ_HASBUFFER
+static void asm_bufhdr_write(ASMState *as, Reg sb)
+{
+  Reg tmp = ra_scratch(as, rset_exclude(RSET_GPR, sb));
+  IRIns irgc;
+  int32_t addr = i32ptr((void *)&J2G(as->J)->cur_L);
+  irgc.ot = IRT(0, IRT_PGC);  /* GC type. */
+  emit_storeofs(as, &irgc, RID_TMP, sb, offsetof(SBuf, L));
+  if ((as->flags & JIT_F_ARMV6T2)) {
+    emit_dnm(as, ARMI_BFI, RID_TMP, lj_fls(SBUF_MASK_FLAG), tmp);
+  } else {
+    emit_dnm(as, ARMI_ORR, RID_TMP, RID_TMP, tmp);
+    emit_dn(as, ARMI_AND|ARMI_K12|SBUF_MASK_FLAG, tmp, tmp);
+  }
+  emit_lso(as, ARMI_LDR, RID_TMP,
+	   ra_allock(as, (addr & ~4095),
+		     rset_exclude(rset_exclude(RSET_GPR, sb), tmp)),
+	   (addr & 4095));
+  emit_loadofs(as, &irgc, tmp, sb, offsetof(SBuf, L));
+}
+#endif
+
+/* -- Type conversions ---------------------------------------------------- */
+
+#if !LJ_SOFTFP
+static void asm_tointg(ASMState *as, IRIns *ir, Reg left)
+{
+  Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, left));
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  asm_guardcc(as, CC_NE);
+  emit_d(as, ARMI_VMRS, 0);
+  emit_dm(as, ARMI_VCMP_D, (tmp & 15), (left & 15));
+  emit_dm(as, ARMI_VCVT_F64_S32, (tmp & 15), (tmp & 15));
+  emit_dn(as, ARMI_VMOV_R_S, dest, (tmp & 15));
+  emit_dm(as, ARMI_VCVT_S32_F64, (tmp & 15), (left & 15));
+}
+
+static void asm_tobit(ASMState *as, IRIns *ir)
+{
+  RegSet allow = RSET_FPR;
+  Reg left = ra_alloc1(as, ir->op1, allow);
+  Reg right = ra_alloc1(as, ir->op2, rset_clear(allow, left));
+  Reg tmp = ra_scratch(as, rset_clear(allow, right));
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  emit_dn(as, ARMI_VMOV_R_S, dest, (tmp & 15));
+  emit_dnm(as, ARMI_VADD_D, (tmp & 15), (left & 15), (right & 15));
+}
+#endif
+
+static void asm_conv(ASMState *as, IRIns *ir)
+{
+  IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+#if !LJ_SOFTFP
+  int stfp = (st == IRT_NUM || st == IRT_FLOAT);
+#endif
+  IRRef lref = ir->op1;
+  /* 64 bit integer conversions are handled by SPLIT. */
+  lj_assertA(!irt_isint64(ir->t) && !(st == IRT_I64 || st == IRT_U64),
+	     "IR %04d has unsplit 64 bit type",
+	     (int)(ir - as->ir) - REF_BIAS);
+#if LJ_SOFTFP
+  /* FP conversions are handled by SPLIT. */
+  lj_assertA(!irt_isfp(ir->t) && !(st == IRT_NUM || st == IRT_FLOAT),
+	     "IR %04d has FP type",
+	     (int)(ir - as->ir) - REF_BIAS);
+  /* Can't check for same types: SPLIT uses CONV int.int + BXOR for sfp NEG. */
+#else
+  lj_assertA(irt_type(ir->t) != st, "inconsistent types for CONV");
+  if (irt_isfp(ir->t)) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    if (stfp) {  /* FP to FP conversion. */
+      emit_dm(as, st == IRT_NUM ? ARMI_VCVT_F32_F64 : ARMI_VCVT_F64_F32,
+	      (dest & 15), (ra_alloc1(as, lref, RSET_FPR) & 15));
+    } else {  /* Integer to FP conversion. */
+      Reg left = ra_alloc1(as, lref, RSET_GPR);
+      ARMIns ai = irt_isfloat(ir->t) ?
+	(st == IRT_INT ? ARMI_VCVT_F32_S32 : ARMI_VCVT_F32_U32) :
+	(st == IRT_INT ? ARMI_VCVT_F64_S32 : ARMI_VCVT_F64_U32);
+      emit_dm(as, ai, (dest & 15), (dest & 15));
+      emit_dn(as, ARMI_VMOV_S_R, left, (dest & 15));
+    }
+  } else if (stfp) {  /* FP to integer conversion. */
+    if (irt_isguard(ir->t)) {
+      /* Checked conversions are only supported from number to int. */
+      lj_assertA(irt_isint(ir->t) && st == IRT_NUM,
+		 "bad type for checked CONV");
+      asm_tointg(as, ir, ra_alloc1(as, lref, RSET_FPR));
+    } else {
+      Reg left = ra_alloc1(as, lref, RSET_FPR);
+      Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, left));
+      Reg dest = ra_dest(as, ir, RSET_GPR);
+      ARMIns ai;
+      emit_dn(as, ARMI_VMOV_R_S, dest, (tmp & 15));
+      ai = irt_isint(ir->t) ?
+	(st == IRT_NUM ? ARMI_VCVT_S32_F64 : ARMI_VCVT_S32_F32) :
+	(st == IRT_NUM ? ARMI_VCVT_U32_F64 : ARMI_VCVT_U32_F32);
+      emit_dm(as, ai, (tmp & 15), (left & 15));
+    }
+  } else
+#endif
+  {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    if (st >= IRT_I8 && st <= IRT_U16) {  /* Extend to 32 bit integer. */
+      Reg left = ra_alloc1(as, lref, RSET_GPR);
+      lj_assertA(irt_isint(ir->t) || irt_isu32(ir->t), "bad type for CONV EXT");
+      if ((as->flags & JIT_F_ARMV6)) {
+	ARMIns ai = st == IRT_I8 ? ARMI_SXTB :
+		    st == IRT_U8 ? ARMI_UXTB :
+		    st == IRT_I16 ? ARMI_SXTH : ARMI_UXTH;
+	emit_dm(as, ai, dest, left);
+      } else if (st == IRT_U8) {
+	emit_dn(as, ARMI_AND|ARMI_K12|255, dest, left);
+      } else {
+	uint32_t shift = st == IRT_I8 ? 24 : 16;
+	ARMShift sh = st == IRT_U16 ? ARMSH_LSR : ARMSH_ASR;
+	emit_dm(as, ARMI_MOV|ARMF_SH(sh, shift), dest, RID_TMP);
+	emit_dm(as, ARMI_MOV|ARMF_SH(ARMSH_LSL, shift), RID_TMP, left);
+      }
+    } else {  /* Handle 32/32 bit no-op (cast). */
+      ra_leftov(as, dest, lref);  /* Do nothing, but may need to move regs. */
+    }
+  }
+}
+
+static void asm_strto(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_strscan_num];
+  IRRef args[2];
+  Reg rlo = 0, rhi = 0, tmp;
+  int destused = ra_used(ir);
+  int32_t ofs = 0;
+  ra_evictset(as, RSET_SCRATCH);
+#if LJ_SOFTFP
+  if (destused) {
+    if (ra_hasspill(ir->s) && ra_hasspill((ir+1)->s) &&
+	(ir->s & 1) == 0 && ir->s + 1 == (ir+1)->s) {
+      int i;
+      for (i = 0; i < 2; i++) {
+	Reg r = (ir+i)->r;
+	if (ra_hasreg(r)) {
+	  ra_free(as, r);
+	  ra_modified(as, r);
+	  emit_spload(as, ir+i, r, sps_scale((ir+i)->s));
+	}
+      }
+      ofs = sps_scale(ir->s);
+      destused = 0;
+    } else {
+      rhi = ra_dest(as, ir+1, RSET_GPR);
+      rlo = ra_dest(as, ir, rset_exclude(RSET_GPR, rhi));
+    }
+  }
+  asm_guardcc(as, CC_EQ);
+  if (destused) {
+    emit_lso(as, ARMI_LDR, rhi, RID_SP, 4);
+    emit_lso(as, ARMI_LDR, rlo, RID_SP, 0);
+  }
+#else
+  UNUSED(rhi);
+  if (destused) {
+    if (ra_hasspill(ir->s)) {
+      ofs = sps_scale(ir->s);
+      destused = 0;
+      if (ra_hasreg(ir->r)) {
+	ra_free(as, ir->r);
+	ra_modified(as, ir->r);
+	emit_spload(as, ir, ir->r, ofs);
+      }
+    } else {
+      rlo = ra_dest(as, ir, RSET_FPR);
+    }
+  }
+  asm_guardcc(as, CC_EQ);
+  if (destused)
+    emit_vlso(as, ARMI_VLDR_D, rlo, RID_SP, 0);
+#endif
+  emit_n(as, ARMI_CMP|ARMI_K12|0, RID_RET);  /* Test return status. */
+  args[0] = ir->op1;      /* GCstr *str */
+  args[1] = ASMREF_TMP1;  /* TValue *n  */
+  asm_gencall(as, ci, args);
+  tmp = ra_releasetmp(as, ASMREF_TMP1);
+  if (ofs == 0)
+    emit_dm(as, ARMI_MOV, tmp, RID_SP);
+  else
+    emit_opk(as, ARMI_ADD, tmp, RID_SP, ofs, RSET_GPR);
+}
+
+/* -- Memory references --------------------------------------------------- */
+
+/* Get pointer to TValue. */
+static void asm_tvptr(ASMState *as, Reg dest, IRRef ref, MSize mode)
+{
+  if ((mode & IRTMPREF_IN1)) {
+    IRIns *ir = IR(ref);
+    if (irt_isnum(ir->t)) {
+      if ((mode & IRTMPREF_OUT1)) {
+#if LJ_SOFTFP
+	lj_assertA(irref_isk(ref), "unsplit FP op");
+	emit_dm(as, ARMI_MOV, dest, RID_SP);
+	emit_lso(as, ARMI_STR,
+		 ra_allock(as, (int32_t)ir_knum(ir)->u32.lo, RSET_GPR),
+		 RID_SP, 0);
+	emit_lso(as, ARMI_STR,
+		 ra_allock(as, (int32_t)ir_knum(ir)->u32.hi, RSET_GPR),
+		 RID_SP, 4);
+#else
+	Reg src = ra_alloc1(as, ref, RSET_FPR);
+	emit_dm(as, ARMI_MOV, dest, RID_SP);
+	emit_vlso(as, ARMI_VSTR_D, src, RID_SP, 0);
+#endif
+      } else if (irref_isk(ref)) {
+	/* Use the number constant itself as a TValue. */
+	ra_allockreg(as, i32ptr(ir_knum(ir)), dest);
+      } else {
+#if LJ_SOFTFP
+	lj_assertA(0, "unsplit FP op");
+#else
+	/* Otherwise force a spill and use the spill slot. */
+	emit_opk(as, ARMI_ADD, dest, RID_SP, ra_spill(as, ir), RSET_GPR);
+#endif
+      }
+    } else {
+      /* Otherwise use [sp] and [sp+4] to hold the TValue.
+      ** This assumes the following call has max. 4 args.
+      */
+      Reg type;
+      emit_dm(as, ARMI_MOV, dest, RID_SP);
+      if (!irt_ispri(ir->t)) {
+	Reg src = ra_alloc1(as, ref, RSET_GPR);
+	emit_lso(as, ARMI_STR, src, RID_SP, 0);
+      }
+      if (LJ_SOFTFP && (ir+1)->o == IR_HIOP && !irt_isnil((ir+1)->t))
+	type = ra_alloc1(as, ref+1, RSET_GPR);
+      else
+	type = ra_allock(as, irt_toitype(ir->t), RSET_GPR);
+      emit_lso(as, ARMI_STR, type, RID_SP, 4);
+    }
+  } else {
+    emit_dm(as, ARMI_MOV, dest, RID_SP);
+  }
+}
+
+static void asm_aref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg idx, base;
+  if (irref_isk(ir->op2)) {
+    IRRef tab = IR(ir->op1)->op1;
+    int32_t ofs = asm_fuseabase(as, tab);
+    IRRef refa = ofs ? tab : ir->op1;
+    uint32_t k = emit_isk12(ARMI_ADD, ofs + 8*IR(ir->op2)->i);
+    if (k) {
+      base = ra_alloc1(as, refa, RSET_GPR);
+      emit_dn(as, ARMI_ADD^k, dest, base);
+      return;
+    }
+  }
+  base = ra_alloc1(as, ir->op1, RSET_GPR);
+  idx = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, base));
+  emit_dnm(as, ARMI_ADD|ARMF_SH(ARMSH_LSL, 3), dest, base, idx);
+}
+
+/* Inlined hash lookup. Specialized for key type and for const keys.
+** The equivalent C code is:
+**   Node *n = hashkey(t, key);
+**   do {
+**     if (lj_obj_equal(&n->key, key)) return &n->val;
+**   } while ((n = nextnode(n)));
+**   return niltv(L);
+*/
+static void asm_href(ASMState *as, IRIns *ir, IROp merge)
+{
+  RegSet allow = RSET_GPR;
+  int destused = ra_used(ir);
+  Reg dest = ra_dest(as, ir, allow);
+  Reg tab = ra_alloc1(as, ir->op1, rset_clear(allow, dest));
+  Reg key = 0, keyhi = 0, keynumhi = RID_NONE, tmp = RID_TMP;
+  IRRef refkey = ir->op2;
+  IRIns *irkey = IR(refkey);
+  IRType1 kt = irkey->t;
+  int32_t k = 0, khi = emit_isk12(ARMI_CMP, irt_toitype(kt));
+  uint32_t khash;
+  MCLabel l_end, l_loop;
+  rset_clear(allow, tab);
+  if (!irref_isk(refkey) || irt_isstr(kt)) {
+#if LJ_SOFTFP
+    key = ra_alloc1(as, refkey, allow);
+    rset_clear(allow, key);
+    if (irkey[1].o == IR_HIOP) {
+      if (ra_hasreg((irkey+1)->r)) {
+	keynumhi = (irkey+1)->r;
+	keyhi = RID_TMP;
+	ra_noweak(as, keynumhi);
+      } else {
+	keyhi = keynumhi = ra_allocref(as, refkey+1, allow);
+      }
+      rset_clear(allow, keynumhi);
+      khi = 0;
+    }
+#else
+    if (irt_isnum(kt)) {
+      key = ra_scratch(as, allow);
+      rset_clear(allow, key);
+      keyhi = keynumhi = ra_scratch(as, allow);
+      rset_clear(allow, keyhi);
+      khi = 0;
+    } else {
+      key = ra_alloc1(as, refkey, allow);
+      rset_clear(allow, key);
+    }
+#endif
+  } else if (irt_isnum(kt)) {
+    int32_t val = (int32_t)ir_knum(irkey)->u32.lo;
+    k = emit_isk12(ARMI_CMP, val);
+    if (!k) {
+      key = ra_allock(as, val, allow);
+      rset_clear(allow, key);
+    }
+    val = (int32_t)ir_knum(irkey)->u32.hi;
+    khi = emit_isk12(ARMI_CMP, val);
+    if (!khi) {
+      keyhi = ra_allock(as, val, allow);
+      rset_clear(allow, keyhi);
+    }
+  } else if (!irt_ispri(kt)) {
+    k = emit_isk12(ARMI_CMP, irkey->i);
+    if (!k) {
+      key = ra_alloc1(as, refkey, allow);
+      rset_clear(allow, key);
+    }
+  }
+  if (!irt_ispri(kt))
+    tmp = ra_scratchpair(as, allow);
+
+  /* Key not found in chain: jump to exit (if merged) or load niltv. */
+  l_end = emit_label(as);
+  as->invmcp = NULL;
+  if (merge == IR_NE)
+    asm_guardcc(as, CC_AL);
+  else if (destused)
+    emit_loada(as, dest, niltvg(J2G(as->J)));
+
+  /* Follow hash chain until the end. */
+  l_loop = --as->mcp;
+  emit_n(as, ARMI_CMP|ARMI_K12|0, dest);
+  emit_lso(as, ARMI_LDR, dest, dest, (int32_t)offsetof(Node, next));
+
+  /* Type and value comparison. */
+  if (merge == IR_EQ)
+    asm_guardcc(as, CC_EQ);
+  else
+    emit_branch(as, ARMF_CC(ARMI_B, CC_EQ), l_end);
+  if (!irt_ispri(kt)) {
+    emit_nm(as, ARMF_CC(ARMI_CMP, CC_EQ)^k, tmp, key);
+    emit_nm(as, ARMI_CMP^khi, tmp+1, keyhi);
+    emit_lsox(as, ARMI_LDRD, tmp, dest, (int32_t)offsetof(Node, key));
+  } else {
+    emit_n(as, ARMI_CMP^khi, tmp);
+    emit_lso(as, ARMI_LDR, tmp, dest, (int32_t)offsetof(Node, key.it));
+  }
+  *l_loop = ARMF_CC(ARMI_B, CC_NE) | ((as->mcp-l_loop-2) & 0x00ffffffu);
+
+  /* Load main position relative to tab->node into dest. */
+  khash = irref_isk(refkey) ? ir_khash(as, irkey) : 1;
+  if (khash == 0) {
+    emit_lso(as, ARMI_LDR, dest, tab, (int32_t)offsetof(GCtab, node));
+  } else {
+    emit_dnm(as, ARMI_ADD|ARMF_SH(ARMSH_LSL, 3), dest, dest, tmp);
+    emit_dnm(as, ARMI_ADD|ARMF_SH(ARMSH_LSL, 1), tmp, tmp, tmp);
+    if (irt_isstr(kt)) {  /* Fetch of str->sid is cheaper than ra_allock. */
+      emit_dnm(as, ARMI_AND, tmp, tmp+1, RID_TMP);
+      emit_lso(as, ARMI_LDR, dest, tab, (int32_t)offsetof(GCtab, node));
+      emit_lso(as, ARMI_LDR, tmp+1, key, (int32_t)offsetof(GCstr, sid));
+      emit_lso(as, ARMI_LDR, RID_TMP, tab, (int32_t)offsetof(GCtab, hmask));
+    } else if (irref_isk(refkey)) {
+      emit_opk(as, ARMI_AND, tmp, RID_TMP, (int32_t)khash,
+	       rset_exclude(rset_exclude(RSET_GPR, tab), dest));
+      emit_lso(as, ARMI_LDR, dest, tab, (int32_t)offsetof(GCtab, node));
+      emit_lso(as, ARMI_LDR, RID_TMP, tab, (int32_t)offsetof(GCtab, hmask));
+    } else {  /* Must match with hash*() in lj_tab.c. */
+      if (ra_hasreg(keynumhi)) {  /* Canonicalize +-0.0 to 0.0. */
+	if (keyhi == RID_TMP)
+	  emit_dm(as, ARMF_CC(ARMI_MOV, CC_NE), keyhi, keynumhi);
+	emit_d(as, ARMF_CC(ARMI_MOV, CC_EQ)|ARMI_K12|0, keyhi);
+      }
+      emit_dnm(as, ARMI_AND, tmp, tmp, RID_TMP);
+      emit_dnm(as, ARMI_SUB|ARMF_SH(ARMSH_ROR, 32-HASH_ROT3), tmp, tmp, tmp+1);
+      emit_lso(as, ARMI_LDR, dest, tab, (int32_t)offsetof(GCtab, node));
+      emit_dnm(as, ARMI_EOR|ARMF_SH(ARMSH_ROR, 32-((HASH_ROT2+HASH_ROT1)&31)),
+	       tmp, tmp+1, tmp);
+      emit_lso(as, ARMI_LDR, RID_TMP, tab, (int32_t)offsetof(GCtab, hmask));
+      emit_dnm(as, ARMI_SUB|ARMF_SH(ARMSH_ROR, 32-HASH_ROT1), tmp+1, tmp+1, tmp);
+      if (ra_hasreg(keynumhi)) {
+	emit_dnm(as, ARMI_EOR, tmp+1, tmp, key);
+	emit_dnm(as, ARMI_ORR|ARMI_S, RID_TMP, tmp, key);  /* Test for +-0.0. */
+	emit_dnm(as, ARMI_ADD, tmp, keynumhi, keynumhi);
+#if !LJ_SOFTFP
+	emit_dnm(as, ARMI_VMOV_RR_D, key, keynumhi,
+		 (ra_alloc1(as, refkey, RSET_FPR) & 15));
+#endif
+      } else {
+	emit_dnm(as, ARMI_EOR, tmp+1, tmp, key);
+	emit_opk(as, ARMI_ADD, tmp, key, (int32_t)HASH_BIAS,
+		 rset_exclude(rset_exclude(RSET_GPR, tab), key));
+      }
+    }
+  }
+}
+
+static void asm_hrefk(ASMState *as, IRIns *ir)
+{
+  IRIns *kslot = IR(ir->op2);
+  IRIns *irkey = IR(kslot->op1);
+  int32_t ofs = (int32_t)(kslot->op2 * sizeof(Node));
+  int32_t kofs = ofs + (int32_t)offsetof(Node, key);
+  Reg dest = (ra_used(ir) || ofs > 4095) ? ra_dest(as, ir, RSET_GPR) : RID_NONE;
+  Reg node = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg key = RID_NONE, type = RID_TMP, idx = node;
+  RegSet allow = rset_exclude(RSET_GPR, node);
+  lj_assertA(ofs % sizeof(Node) == 0, "unaligned HREFK slot");
+  if (ofs > 4095) {
+    idx = dest;
+    rset_clear(allow, dest);
+    kofs = (int32_t)offsetof(Node, key);
+  } else if (ra_hasreg(dest)) {
+    emit_opk(as, ARMI_ADD, dest, node, ofs, allow);
+  }
+  asm_guardcc(as, CC_NE);
+  if (!irt_ispri(irkey->t)) {
+    RegSet even = (as->freeset & allow);
+    even = even & (even >> 1) & RSET_GPREVEN;
+    if (even) {
+      key = ra_scratch(as, even);
+      if (rset_test(as->freeset, key+1)) {
+	type = key+1;
+	ra_modified(as, type);
+      }
+    } else {
+      key = ra_scratch(as, allow);
+    }
+    rset_clear(allow, key);
+  }
+  rset_clear(allow, type);
+  if (irt_isnum(irkey->t)) {
+    emit_opk(as, ARMF_CC(ARMI_CMP, CC_EQ), 0, type,
+	     (int32_t)ir_knum(irkey)->u32.hi, allow);
+    emit_opk(as, ARMI_CMP, 0, key,
+	     (int32_t)ir_knum(irkey)->u32.lo, allow);
+  } else {
+    if (ra_hasreg(key))
+      emit_opk(as, ARMF_CC(ARMI_CMP, CC_EQ), 0, key, irkey->i, allow);
+    emit_n(as, ARMI_CMN|ARMI_K12|-irt_toitype(irkey->t), type);
+  }
+  emit_lso(as, ARMI_LDR, type, idx, kofs+4);
+  if (ra_hasreg(key)) emit_lso(as, ARMI_LDR, key, idx, kofs);
+  if (ofs > 4095)
+    emit_opk(as, ARMI_ADD, dest, node, ofs, RSET_GPR);
+}
+
+static void asm_uref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  if (irref_isk(ir->op1)) {
+    GCfunc *fn = ir_kfunc(IR(ir->op1));
+    MRef *v = &gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.v;
+    emit_lsptr(as, ARMI_LDR, dest, v);
+  } else {
+    Reg uv = ra_scratch(as, RSET_GPR);
+    Reg func = ra_alloc1(as, ir->op1, RSET_GPR);
+    if (ir->o == IR_UREFC) {
+      asm_guardcc(as, CC_NE);
+      emit_n(as, ARMI_CMP|ARMI_K12|1, RID_TMP);
+      emit_opk(as, ARMI_ADD, dest, uv,
+	       (int32_t)offsetof(GCupval, tv), RSET_GPR);
+      emit_lso(as, ARMI_LDRB, RID_TMP, uv, (int32_t)offsetof(GCupval, closed));
+    } else {
+      emit_lso(as, ARMI_LDR, dest, uv, (int32_t)offsetof(GCupval, v));
+    }
+    emit_lso(as, ARMI_LDR, uv, func,
+	     (int32_t)offsetof(GCfuncL, uvptr) + 4*(int32_t)(ir->op2 >> 8));
+  }
+}
+
+static void asm_fref(ASMState *as, IRIns *ir)
+{
+  UNUSED(as); UNUSED(ir);
+  lj_assertA(!ra_used(ir), "unfused FREF");
+}
+
+static void asm_strref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  IRRef ref = ir->op2, refk = ir->op1;
+  Reg r;
+  if (irref_isk(ref)) {
+    IRRef tmp = refk; refk = ref; ref = tmp;
+  } else if (!irref_isk(refk)) {
+    uint32_t k, m = ARMI_K12|sizeof(GCstr);
+    Reg right, left = ra_alloc1(as, ir->op1, RSET_GPR);
+    IRIns *irr = IR(ir->op2);
+    if (ra_hasreg(irr->r)) {
+      ra_noweak(as, irr->r);
+      right = irr->r;
+    } else if (mayfuse(as, irr->op2) &&
+	       irr->o == IR_ADD && irref_isk(irr->op2) &&
+	       (k = emit_isk12(ARMI_ADD,
+			       (int32_t)sizeof(GCstr) + IR(irr->op2)->i))) {
+      m = k;
+      right = ra_alloc1(as, irr->op1, rset_exclude(RSET_GPR, left));
+    } else {
+      right = ra_allocref(as, ir->op2, rset_exclude(RSET_GPR, left));
+    }
+    emit_dn(as, ARMI_ADD^m, dest, dest);
+    emit_dnm(as, ARMI_ADD, dest, left, right);
+    return;
+  }
+  r = ra_alloc1(as, ref, RSET_GPR);
+  emit_opk(as, ARMI_ADD, dest, r,
+	   sizeof(GCstr) + IR(refk)->i, rset_exclude(RSET_GPR, r));
+}
+
+/* -- Loads and stores ---------------------------------------------------- */
+
+static ARMIns asm_fxloadins(ASMState *as, IRIns *ir)
+{
+  UNUSED(as);
+  switch (irt_type(ir->t)) {
+  case IRT_I8: return ARMI_LDRSB;
+  case IRT_U8: return ARMI_LDRB;
+  case IRT_I16: return ARMI_LDRSH;
+  case IRT_U16: return ARMI_LDRH;
+  case IRT_NUM: lj_assertA(!LJ_SOFTFP, "unsplit FP op"); return ARMI_VLDR_D;
+  case IRT_FLOAT: if (!LJ_SOFTFP) return ARMI_VLDR_S;  /* fallthrough */
+  default: return ARMI_LDR;
+  }
+}
+
+static ARMIns asm_fxstoreins(ASMState *as, IRIns *ir)
+{
+  UNUSED(as);
+  switch (irt_type(ir->t)) {
+  case IRT_I8: case IRT_U8: return ARMI_STRB;
+  case IRT_I16: case IRT_U16: return ARMI_STRH;
+  case IRT_NUM: lj_assertA(!LJ_SOFTFP, "unsplit FP op"); return ARMI_VSTR_D;
+  case IRT_FLOAT: if (!LJ_SOFTFP) return ARMI_VSTR_S;  /* fallthrough */
+  default: return ARMI_STR;
+  }
+}
+
+static void asm_fload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  ARMIns ai = asm_fxloadins(as, ir);
+  Reg idx;
+  int32_t ofs;
+  if (ir->op1 == REF_NIL) {  /* FLOAD from GG_State with offset. */
+    idx = ra_allock(as, (int32_t)(ir->op2<<2) + (int32_t)J2GG(as->J), RSET_GPR);
+    ofs = 0;
+  } else {
+    idx = ra_alloc1(as, ir->op1, RSET_GPR);
+    if (ir->op2 == IRFL_TAB_ARRAY) {
+      ofs = asm_fuseabase(as, ir->op1);
+      if (ofs) {  /* Turn the t->array load into an add for colocated arrays. */
+	emit_dn(as, ARMI_ADD|ARMI_K12|ofs, dest, idx);
+	return;
+      }
+    }
+    ofs = field_ofs[ir->op2];
+  }
+  if ((ai & 0x04000000))
+    emit_lso(as, ai, dest, idx, ofs);
+  else
+    emit_lsox(as, ai, dest, idx, ofs);
+}
+
+static void asm_fstore(ASMState *as, IRIns *ir)
+{
+  if (ir->r != RID_SINK) {
+    Reg src = ra_alloc1(as, ir->op2, RSET_GPR);
+    IRIns *irf = IR(ir->op1);
+    Reg idx = ra_alloc1(as, irf->op1, rset_exclude(RSET_GPR, src));
+    int32_t ofs = field_ofs[irf->op2];
+    ARMIns ai = asm_fxstoreins(as, ir);
+    if ((ai & 0x04000000))
+      emit_lso(as, ai, src, idx, ofs);
+    else
+      emit_lsox(as, ai, src, idx, ofs);
+  }
+}
+
+static void asm_xload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir,
+		     (!LJ_SOFTFP && irt_isfp(ir->t)) ? RSET_FPR : RSET_GPR);
+  lj_assertA(!(ir->op2 & IRXLOAD_UNALIGNED), "unaligned XLOAD");
+  asm_fusexref(as, asm_fxloadins(as, ir), dest, ir->op1, RSET_GPR, 0);
+}
+
+static void asm_xstore_(ASMState *as, IRIns *ir, int32_t ofs)
+{
+  if (ir->r != RID_SINK) {
+    Reg src = ra_alloc1(as, ir->op2,
+			(!LJ_SOFTFP && irt_isfp(ir->t)) ? RSET_FPR : RSET_GPR);
+    asm_fusexref(as, asm_fxstoreins(as, ir), src, ir->op1,
+		 rset_exclude(RSET_GPR, src), ofs);
+  }
+}
+
+#define asm_xstore(as, ir)	asm_xstore_(as, ir, 0)
+
+static void asm_ahuvload(ASMState *as, IRIns *ir)
+{
+  int hiop = (LJ_SOFTFP && (ir+1)->o == IR_HIOP);
+  IRType t = hiop ? IRT_NUM : irt_type(ir->t);
+  Reg dest = RID_NONE, type = RID_NONE, idx;
+  RegSet allow = RSET_GPR;
+  int32_t ofs = 0;
+  if (hiop && ra_used(ir+1)) {
+    type = ra_dest(as, ir+1, allow);
+    rset_clear(allow, type);
+  }
+  if (ra_used(ir)) {
+    lj_assertA((LJ_SOFTFP ? 0 : irt_isnum(ir->t)) ||
+	       irt_isint(ir->t) || irt_isaddr(ir->t),
+	       "bad load type %d", irt_type(ir->t));
+    dest = ra_dest(as, ir, (!LJ_SOFTFP && t == IRT_NUM) ? RSET_FPR : allow);
+    rset_clear(allow, dest);
+  }
+  idx = asm_fuseahuref(as, ir->op1, &ofs, allow,
+		       (!LJ_SOFTFP && t == IRT_NUM) ? 1024 : 4096);
+  if (ir->o == IR_VLOAD) ofs += 8 * ir->op2;
+  if (!hiop || type == RID_NONE) {
+    rset_clear(allow, idx);
+    if (ofs < 256 && ra_hasreg(dest) && (dest & 1) == 0 &&
+	rset_test((as->freeset & allow), dest+1)) {
+      type = dest+1;
+      ra_modified(as, type);
+    } else {
+      type = RID_TMP;
+    }
+  }
+  asm_guardcc(as, t == IRT_NUM ? CC_HS : CC_NE);
+  emit_n(as, ARMI_CMN|ARMI_K12|-irt_toitype_(t), type);
+  if (ra_hasreg(dest)) {
+#if !LJ_SOFTFP
+    if (t == IRT_NUM)
+      emit_vlso(as, ARMI_VLDR_D, dest, idx, ofs);
+    else
+#endif
+      emit_lso(as, ARMI_LDR, dest, idx, ofs);
+  }
+  emit_lso(as, ARMI_LDR, type, idx, ofs+4);
+}
+
+static void asm_ahustore(ASMState *as, IRIns *ir)
+{
+  if (ir->r != RID_SINK) {
+    RegSet allow = RSET_GPR;
+    Reg idx, src = RID_NONE, type = RID_NONE;
+    int32_t ofs = 0;
+#if !LJ_SOFTFP
+    if (irt_isnum(ir->t)) {
+      src = ra_alloc1(as, ir->op2, RSET_FPR);
+      idx = asm_fuseahuref(as, ir->op1, &ofs, allow, 1024);
+      emit_vlso(as, ARMI_VSTR_D, src, idx, ofs);
+    } else
+#endif
+    {
+      int hiop = (LJ_SOFTFP && (ir+1)->o == IR_HIOP);
+      if (!irt_ispri(ir->t)) {
+	src = ra_alloc1(as, ir->op2, allow);
+	rset_clear(allow, src);
+      }
+      if (hiop)
+	type = ra_alloc1(as, (ir+1)->op2, allow);
+      else
+	type = ra_allock(as, (int32_t)irt_toitype(ir->t), allow);
+      idx = asm_fuseahuref(as, ir->op1, &ofs, rset_exclude(allow, type), 4096);
+      if (ra_hasreg(src)) emit_lso(as, ARMI_STR, src, idx, ofs);
+      emit_lso(as, ARMI_STR, type, idx, ofs+4);
+    }
+  }
+}
+
+static void asm_sload(ASMState *as, IRIns *ir)
+{
+  int32_t ofs = 8*((int32_t)ir->op1-1) + ((ir->op2 & IRSLOAD_FRAME) ? 4 : 0);
+  int hiop = (LJ_SOFTFP && (ir+1)->o == IR_HIOP);
+  IRType t = hiop ? IRT_NUM : irt_type(ir->t);
+  Reg dest = RID_NONE, type = RID_NONE, base;
+  RegSet allow = RSET_GPR;
+  lj_assertA(!(ir->op2 & IRSLOAD_PARENT),
+	     "bad parent SLOAD");  /* Handled by asm_head_side(). */
+  lj_assertA(irt_isguard(ir->t) || !(ir->op2 & IRSLOAD_TYPECHECK),
+	     "inconsistent SLOAD variant");
+#if LJ_SOFTFP
+  lj_assertA(!(ir->op2 & IRSLOAD_CONVERT),
+	     "unsplit SLOAD convert");  /* Handled by LJ_SOFTFP SPLIT. */
+  if (hiop && ra_used(ir+1)) {
+    type = ra_dest(as, ir+1, allow);
+    rset_clear(allow, type);
+  }
+#else
+  if ((ir->op2 & IRSLOAD_CONVERT) && irt_isguard(ir->t) && t == IRT_INT) {
+    dest = ra_scratch(as, RSET_FPR);
+    asm_tointg(as, ir, dest);
+    t = IRT_NUM;  /* Continue with a regular number type check. */
+  } else
+#endif
+  if (ra_used(ir)) {
+    Reg tmp = RID_NONE;
+    if ((ir->op2 & IRSLOAD_CONVERT))
+      tmp = ra_scratch(as, t == IRT_INT ? RSET_FPR : RSET_GPR);
+    lj_assertA((LJ_SOFTFP ? 0 : irt_isnum(ir->t)) ||
+	       irt_isint(ir->t) || irt_isaddr(ir->t),
+	       "bad SLOAD type %d", irt_type(ir->t));
+    dest = ra_dest(as, ir, (!LJ_SOFTFP && t == IRT_NUM) ? RSET_FPR : allow);
+    rset_clear(allow, dest);
+    base = ra_alloc1(as, REF_BASE, allow);
+    if ((ir->op2 & IRSLOAD_CONVERT)) {
+      if (t == IRT_INT) {
+	emit_dn(as, ARMI_VMOV_R_S, dest, (tmp & 15));
+	emit_dm(as, ARMI_VCVT_S32_F64, (tmp & 15), (tmp & 15));
+	t = IRT_NUM;  /* Check for original type. */
+      } else {
+	emit_dm(as, ARMI_VCVT_F64_S32, (dest & 15), (dest & 15));
+	emit_dn(as, ARMI_VMOV_S_R, tmp, (dest & 15));
+	t = IRT_INT;  /* Check for original type. */
+      }
+      dest = tmp;
+    }
+    goto dotypecheck;
+  }
+  base = ra_alloc1(as, REF_BASE, allow);
+dotypecheck:
+  rset_clear(allow, base);
+  if ((ir->op2 & IRSLOAD_TYPECHECK)) {
+    if (ra_noreg(type)) {
+      if (ofs < 256 && ra_hasreg(dest) && (dest & 1) == 0 &&
+	  rset_test((as->freeset & allow), dest+1)) {
+	type = dest+1;
+	ra_modified(as, type);
+      } else {
+	type = RID_TMP;
+      }
+    }
+    asm_guardcc(as, t == IRT_NUM ? CC_HS : CC_NE);
+    if ((ir->op2 & IRSLOAD_KEYINDEX)) {
+      emit_n(as, ARMI_CMN|ARMI_K12|1, type);
+      emit_dn(as, ARMI_EOR^emit_isk12(ARMI_EOR, ~LJ_KEYINDEX), type, type);
+    } else {
+      emit_n(as, ARMI_CMN|ARMI_K12|-irt_toitype_(t), type);
+    }
+  }
+  if (ra_hasreg(dest)) {
+#if !LJ_SOFTFP
+    if (t == IRT_NUM) {
+      if (ofs < 1024) {
+	emit_vlso(as, ARMI_VLDR_D, dest, base, ofs);
+      } else {
+	if (ra_hasreg(type)) emit_lso(as, ARMI_LDR, type, base, ofs+4);
+	emit_vlso(as, ARMI_VLDR_D, dest, RID_TMP, 0);
+	emit_opk(as, ARMI_ADD, RID_TMP, base, ofs, allow);
+	return;
+      }
+    } else
+#endif
+      emit_lso(as, ARMI_LDR, dest, base, ofs);
+  }
+  if (ra_hasreg(type)) emit_lso(as, ARMI_LDR, type, base, ofs+4);
+}
+
+/* -- Allocations --------------------------------------------------------- */
+
+#if LJ_HASFFI
+static void asm_cnew(ASMState *as, IRIns *ir)
+{
+  CTState *cts = ctype_ctsG(J2G(as->J));
+  CTypeID id = (CTypeID)IR(ir->op1)->i;
+  CTSize sz;
+  CTInfo info = lj_ctype_info(cts, id, &sz);
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_mem_newgco];
+  IRRef args[4];
+  RegSet allow = (RSET_GPR & ~RSET_SCRATCH);
+  RegSet drop = RSET_SCRATCH;
+  lj_assertA(sz != CTSIZE_INVALID || (ir->o == IR_CNEW && ir->op2 != REF_NIL),
+	     "bad CNEW/CNEWI operands");
+
+  as->gcsteps++;
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop);
+  if (ra_used(ir))
+    ra_destreg(as, ir, RID_RET);  /* GCcdata * */
+
+  /* Initialize immutable cdata object. */
+  if (ir->o == IR_CNEWI) {
+    int32_t ofs = sizeof(GCcdata);
+    lj_assertA(sz == 4 || sz == 8, "bad CNEWI size %d", sz);
+    if (sz == 8) {
+      ofs += 4; ir++;
+      lj_assertA(ir->o == IR_HIOP, "expected HIOP for CNEWI");
+    }
+    for (;;) {
+      Reg r = ra_alloc1(as, ir->op2, allow);
+      emit_lso(as, ARMI_STR, r, RID_RET, ofs);
+      rset_clear(allow, r);
+      if (ofs == sizeof(GCcdata)) break;
+      ofs -= 4; ir--;
+    }
+  } else if (ir->op2 != REF_NIL) {  /* Create VLA/VLS/aligned cdata. */
+    ci = &lj_ir_callinfo[IRCALL_lj_cdata_newv];
+    args[0] = ASMREF_L;     /* lua_State *L */
+    args[1] = ir->op1;      /* CTypeID id   */
+    args[2] = ir->op2;      /* CTSize sz    */
+    args[3] = ASMREF_TMP1;  /* CTSize align */
+    asm_gencall(as, ci, args);
+    emit_loadi(as, ra_releasetmp(as, ASMREF_TMP1), (int32_t)ctype_align(info));
+    return;
+  }
+
+  /* Initialize gct and ctypeid. lj_mem_newgco() already sets marked. */
+  {
+    uint32_t k = emit_isk12(ARMI_MOV, id);
+    Reg r = k ? RID_R1 : ra_allock(as, id, allow);
+    emit_lso(as, ARMI_STRB, RID_TMP, RID_RET, offsetof(GCcdata, gct));
+    emit_lsox(as, ARMI_STRH, r, RID_RET, offsetof(GCcdata, ctypeid));
+    emit_d(as, ARMI_MOV|ARMI_K12|~LJ_TCDATA, RID_TMP);
+    if (k) emit_d(as, ARMI_MOV^k, RID_R1);
+  }
+  args[0] = ASMREF_L;     /* lua_State *L */
+  args[1] = ASMREF_TMP1;  /* MSize size   */
+  asm_gencall(as, ci, args);
+  ra_allockreg(as, (int32_t)(sz+sizeof(GCcdata)),
+	       ra_releasetmp(as, ASMREF_TMP1));
+}
+#endif
+
+/* -- Write barriers ------------------------------------------------------ */
+
+static void asm_tbar(ASMState *as, IRIns *ir)
+{
+  Reg tab = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg link = ra_scratch(as, rset_exclude(RSET_GPR, tab));
+  Reg gr = ra_allock(as, i32ptr(J2G(as->J)),
+		     rset_exclude(rset_exclude(RSET_GPR, tab), link));
+  Reg mark = RID_TMP;
+  MCLabel l_end = emit_label(as);
+  emit_lso(as, ARMI_STR, link, tab, (int32_t)offsetof(GCtab, gclist));
+  emit_lso(as, ARMI_STRB, mark, tab, (int32_t)offsetof(GCtab, marked));
+  emit_lso(as, ARMI_STR, tab, gr,
+	   (int32_t)offsetof(global_State, gc.grayagain));
+  emit_dn(as, ARMI_BIC|ARMI_K12|LJ_GC_BLACK, mark, mark);
+  emit_lso(as, ARMI_LDR, link, gr,
+	   (int32_t)offsetof(global_State, gc.grayagain));
+  emit_branch(as, ARMF_CC(ARMI_B, CC_EQ), l_end);
+  emit_n(as, ARMI_TST|ARMI_K12|LJ_GC_BLACK, mark);
+  emit_lso(as, ARMI_LDRB, mark, tab, (int32_t)offsetof(GCtab, marked));
+}
+
+static void asm_obar(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_barrieruv];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg obj, val, tmp;
+  /* No need for other object barriers (yet). */
+  lj_assertA(IR(ir->op1)->o == IR_UREFC, "bad OBAR type");
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ir->op1;      /* TValue *tv      */
+  asm_gencall(as, ci, args);
+  if ((l_end[-1] >> 28) == CC_AL)
+    l_end[-1] = ARMF_CC(l_end[-1], CC_NE);
+  else
+    emit_branch(as, ARMF_CC(ARMI_B, CC_EQ), l_end);
+  ra_allockreg(as, i32ptr(J2G(as->J)), ra_releasetmp(as, ASMREF_TMP1));
+  obj = IR(ir->op1)->r;
+  tmp = ra_scratch(as, rset_exclude(RSET_GPR, obj));
+  emit_n(as, ARMF_CC(ARMI_TST, CC_NE)|ARMI_K12|LJ_GC_BLACK, tmp);
+  emit_n(as, ARMI_TST|ARMI_K12|LJ_GC_WHITES, RID_TMP);
+  val = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, obj));
+  emit_lso(as, ARMI_LDRB, tmp, obj,
+	   (int32_t)offsetof(GCupval, marked)-(int32_t)offsetof(GCupval, tv));
+  emit_lso(as, ARMI_LDRB, RID_TMP, val, (int32_t)offsetof(GChead, marked));
+}
+
+/* -- Arithmetic and logic operations ------------------------------------- */
+
+#if !LJ_SOFTFP
+static void asm_fparith(ASMState *as, IRIns *ir, ARMIns ai)
+{
+  Reg dest = ra_dest(as, ir, RSET_FPR);
+  Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+  right = (left >> 8); left &= 255;
+  emit_dnm(as, ai, (dest & 15), (left & 15), (right & 15));
+}
+
+static void asm_fpunary(ASMState *as, IRIns *ir, ARMIns ai)
+{
+  Reg dest = ra_dest(as, ir, RSET_FPR);
+  Reg left = ra_hintalloc(as, ir->op1, dest, RSET_FPR);
+  emit_dm(as, ai, (dest & 15), (left & 15));
+}
+
+static void asm_callround(ASMState *as, IRIns *ir, int id)
+{
+  /* The modified regs must match with the *.dasc implementation. */
+  RegSet drop = RID2RSET(RID_R0)|RID2RSET(RID_R1)|RID2RSET(RID_R2)|
+		RID2RSET(RID_R3)|RID2RSET(RID_R12);
+  RegSet of;
+  Reg dest, src;
+  ra_evictset(as, drop);
+  dest = ra_dest(as, ir, RSET_FPR);
+  emit_dnm(as, ARMI_VMOV_D_RR, RID_RETLO, RID_RETHI, (dest & 15));
+  emit_call(as, id == IRFPM_FLOOR ? (void *)lj_vm_floor_sf :
+		id == IRFPM_CEIL ? (void *)lj_vm_ceil_sf :
+				   (void *)lj_vm_trunc_sf);
+  /* Workaround to protect argument GPRs from being used for remat. */
+  of = as->freeset;
+  as->freeset &= ~RSET_RANGE(RID_R0, RID_R1+1);
+  as->cost[RID_R0] = as->cost[RID_R1] = REGCOST(~0u, ASMREF_L);
+  src = ra_alloc1(as, ir->op1, RSET_FPR);  /* May alloc GPR to remat FPR. */
+  as->freeset |= (of & RSET_RANGE(RID_R0, RID_R1+1));
+  emit_dnm(as, ARMI_VMOV_RR_D, RID_R0, RID_R1, (src & 15));
+}
+
+static void asm_fpmath(ASMState *as, IRIns *ir)
+{
+  if (ir->op2 <= IRFPM_TRUNC)
+    asm_callround(as, ir, ir->op2);
+  else if (ir->op2 == IRFPM_SQRT)
+    asm_fpunary(as, ir, ARMI_VSQRT_D);
+  else
+    asm_callid(as, ir, IRCALL_lj_vm_floor + ir->op2);
+}
+#endif
+
+static int asm_swapops(ASMState *as, IRRef lref, IRRef rref)
+{
+  IRIns *ir;
+  if (irref_isk(rref))
+    return 0;  /* Don't swap constants to the left. */
+  if (irref_isk(lref))
+    return 1;  /* But swap constants to the right. */
+  ir = IR(rref);
+  if ((ir->o >= IR_BSHL && ir->o <= IR_BROR) ||
+      (ir->o == IR_ADD && ir->op1 == ir->op2))
+    return 0;  /* Don't swap fusable operands to the left. */
+  ir = IR(lref);
+  if ((ir->o >= IR_BSHL && ir->o <= IR_BROR) ||
+      (ir->o == IR_ADD && ir->op1 == ir->op2))
+    return 1;  /* But swap fusable operands to the right. */
+  return 0;  /* Otherwise don't swap. */
+}
+
+static void asm_intop(ASMState *as, IRIns *ir, ARMIns ai)
+{
+  IRRef lref = ir->op1, rref = ir->op2;
+  Reg left, dest = ra_dest(as, ir, RSET_GPR);
+  uint32_t m;
+  if (asm_swapops(as, lref, rref)) {
+    IRRef tmp = lref; lref = rref; rref = tmp;
+    if ((ai & ~ARMI_S) == ARMI_SUB || (ai & ~ARMI_S) == ARMI_SBC)
+      ai ^= (ARMI_SUB^ARMI_RSB);
+  }
+  left = ra_hintalloc(as, lref, dest, RSET_GPR);
+  m = asm_fuseopm(as, ai, rref, rset_exclude(RSET_GPR, left));
+  if (irt_isguard(ir->t)) {  /* For IR_ADDOV etc. */
+    asm_guardcc(as, CC_VS);
+    ai |= ARMI_S;
+  }
+  emit_dn(as, ai^m, dest, left);
+}
+
+/* Try to drop cmp r, #0. */
+static ARMIns asm_drop_cmp0(ASMState *as, ARMIns ai)
+{
+  if (as->flagmcp == as->mcp) {
+    uint32_t cc = (as->mcp[1] >> 28);
+    as->flagmcp = NULL;
+    if (cc <= CC_NE) {
+      as->mcp++;
+      ai |= ARMI_S;
+    } else if (cc == CC_GE) {
+      *++as->mcp ^= ((CC_GE^CC_PL) << 28);
+      ai |= ARMI_S;
+    } else if (cc == CC_LT) {
+      *++as->mcp ^= ((CC_LT^CC_MI) << 28);
+      ai |= ARMI_S;
+    }  /* else: other conds don't work in general. */
+  }
+  return ai;
+}
+
+static void asm_intop_s(ASMState *as, IRIns *ir, ARMIns ai)
+{
+  asm_intop(as, ir, asm_drop_cmp0(as, ai));
+}
+
+static void asm_intneg(ASMState *as, IRIns *ir, ARMIns ai)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+  emit_dn(as, ai|ARMI_K12|0, dest, left);
+}
+
+/* NYI: use add/shift for MUL(OV) with constants. FOLD only does 2^k. */
+static void asm_intmul(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, rset_exclude(RSET_GPR, dest));
+  Reg right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  Reg tmp = RID_NONE;
+  /* ARMv5 restriction: dest != left and dest_hi != left. */
+  if (dest == left && left != right) { left = right; right = dest; }
+  if (irt_isguard(ir->t)) {  /* IR_MULOV */
+    if (!(as->flags & JIT_F_ARMV6) && dest == left)
+      tmp = left = ra_scratch(as, rset_exclude(RSET_GPR, left));
+    asm_guardcc(as, CC_NE);
+    emit_nm(as, ARMI_TEQ|ARMF_SH(ARMSH_ASR, 31), RID_TMP, dest);
+    emit_dnm(as, ARMI_SMULL|ARMF_S(right), dest, RID_TMP, left);
+  } else {
+    if (!(as->flags & JIT_F_ARMV6) && dest == left) tmp = left = RID_TMP;
+    emit_nm(as, ARMI_MUL|ARMF_S(right), dest, left);
+  }
+  /* Only need this for the dest == left == right case. */
+  if (ra_hasreg(tmp)) emit_dm(as, ARMI_MOV, tmp, right);
+}
+
+static void asm_add(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+  if (irt_isnum(ir->t)) {
+    if (!asm_fusemadd(as, ir, ARMI_VMLA_D, ARMI_VMLA_D))
+      asm_fparith(as, ir, ARMI_VADD_D);
+    return;
+  }
+#endif
+  asm_intop_s(as, ir, ARMI_ADD);
+}
+
+static void asm_sub(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+  if (irt_isnum(ir->t)) {
+    if (!asm_fusemadd(as, ir, ARMI_VNMLS_D, ARMI_VMLS_D))
+      asm_fparith(as, ir, ARMI_VSUB_D);
+    return;
+  }
+#endif
+  asm_intop_s(as, ir, ARMI_SUB);
+}
+
+static void asm_mul(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+  if (irt_isnum(ir->t)) {
+    asm_fparith(as, ir, ARMI_VMUL_D);
+    return;
+  }
+#endif
+  asm_intmul(as, ir);
+}
+
+#define asm_addov(as, ir)	asm_add(as, ir)
+#define asm_subov(as, ir)	asm_sub(as, ir)
+#define asm_mulov(as, ir)	asm_mul(as, ir)
+
+#if !LJ_SOFTFP
+#define asm_fpdiv(as, ir)	asm_fparith(as, ir, ARMI_VDIV_D)
+#define asm_abs(as, ir)		asm_fpunary(as, ir, ARMI_VABS_D)
+#endif
+
+static void asm_neg(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+  if (irt_isnum(ir->t)) {
+    asm_fpunary(as, ir, ARMI_VNEG_D);
+    return;
+  }
+#endif
+  asm_intneg(as, ir, ARMI_RSB);
+}
+
+static void asm_bitop(ASMState *as, IRIns *ir, ARMIns ai)
+{
+  ai = asm_drop_cmp0(as, ai);
+  if (ir->op2 == 0) {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    uint32_t m = asm_fuseopm(as, ai, ir->op1, RSET_GPR);
+    emit_d(as, ai^m, dest);
+  } else {
+    /* NYI: Turn BAND !k12 into uxtb, uxth or bfc or shl+shr. */
+    asm_intop(as, ir, ai);
+  }
+}
+
+#define asm_bnot(as, ir)	asm_bitop(as, ir, ARMI_MVN)
+
+static void asm_bswap(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+  if ((as->flags & JIT_F_ARMV6)) {
+    emit_dm(as, ARMI_REV, dest, left);
+  } else {
+    Reg tmp2 = dest;
+    if (tmp2 == left)
+      tmp2 = ra_scratch(as, rset_exclude(rset_exclude(RSET_GPR, dest), left));
+    emit_dnm(as, ARMI_EOR|ARMF_SH(ARMSH_LSR, 8), dest, tmp2, RID_TMP);
+    emit_dm(as, ARMI_MOV|ARMF_SH(ARMSH_ROR, 8), tmp2, left);
+    emit_dn(as, ARMI_BIC|ARMI_K12|256*8|255, RID_TMP, RID_TMP);
+    emit_dnm(as, ARMI_EOR|ARMF_SH(ARMSH_ROR, 16), RID_TMP, left, left);
+  }
+}
+
+#define asm_band(as, ir)	asm_bitop(as, ir, ARMI_AND)
+#define asm_bor(as, ir)		asm_bitop(as, ir, ARMI_ORR)
+#define asm_bxor(as, ir)	asm_bitop(as, ir, ARMI_EOR)
+
+static void asm_bitshift(ASMState *as, IRIns *ir, ARMShift sh)
+{
+  if (irref_isk(ir->op2)) {  /* Constant shifts. */
+    /* NYI: Turn SHL+SHR or BAND+SHR into uxtb, uxth or ubfx. */
+    /* NYI: Turn SHL+ASR into sxtb, sxth or sbfx. */
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+    int32_t shift = (IR(ir->op2)->i & 31);
+    emit_dm(as, ARMI_MOV|ARMF_SH(sh, shift), dest, left);
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+    Reg right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+    emit_dm(as, ARMI_MOV|ARMF_RSH(sh, right), dest, left);
+  }
+}
+
+#define asm_bshl(as, ir)	asm_bitshift(as, ir, ARMSH_LSL)
+#define asm_bshr(as, ir)	asm_bitshift(as, ir, ARMSH_LSR)
+#define asm_bsar(as, ir)	asm_bitshift(as, ir, ARMSH_ASR)
+#define asm_bror(as, ir)	asm_bitshift(as, ir, ARMSH_ROR)
+#define asm_brol(as, ir)	lj_assertA(0, "unexpected BROL")
+
+static void asm_intmin_max(ASMState *as, IRIns *ir, int cc)
+{
+  uint32_t kcmp = 0, kmov = 0;
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+  Reg right = 0;
+  if (irref_isk(ir->op2)) {
+    kcmp = emit_isk12(ARMI_CMP, IR(ir->op2)->i);
+    if (kcmp) kmov = emit_isk12(ARMI_MOV, IR(ir->op2)->i);
+  }
+  if (!kmov) {
+    kcmp = 0;
+    right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  }
+  if (kmov || dest != right) {
+    emit_dm(as, ARMF_CC(ARMI_MOV, cc)^kmov, dest, right);
+    cc ^= 1;  /* Must use opposite conditions for paired moves. */
+  } else {
+    cc ^= (CC_LT^CC_GT);  /* Otherwise may swap CC_LT <-> CC_GT. */
+  }
+  if (dest != left) emit_dm(as, ARMF_CC(ARMI_MOV, cc), dest, left);
+  emit_nm(as, ARMI_CMP^kcmp, left, right);
+}
+
+#if LJ_SOFTFP
+static void asm_sfpmin_max(ASMState *as, IRIns *ir, int cc)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_softfp_cmp];
+  RegSet drop = RSET_SCRATCH;
+  Reg r;
+  IRRef args[4];
+  args[0] = ir->op1; args[1] = (ir+1)->op1;
+  args[2] = ir->op2; args[3] = (ir+1)->op2;
+  /* __aeabi_cdcmple preserves r0-r3. */
+  if (ra_hasreg(ir->r)) rset_clear(drop, ir->r);
+  if (ra_hasreg((ir+1)->r)) rset_clear(drop, (ir+1)->r);
+  if (!rset_test(as->freeset, RID_R2) &&
+      regcost_ref(as->cost[RID_R2]) == args[2]) rset_clear(drop, RID_R2);
+  if (!rset_test(as->freeset, RID_R3) &&
+      regcost_ref(as->cost[RID_R3]) == args[3]) rset_clear(drop, RID_R3);
+  ra_evictset(as, drop);
+  ra_destpair(as, ir);
+  emit_dm(as, ARMF_CC(ARMI_MOV, cc), RID_RETHI, RID_R3);
+  emit_dm(as, ARMF_CC(ARMI_MOV, cc), RID_RETLO, RID_R2);
+  emit_call(as, (void *)ci->func);
+  for (r = RID_R0; r <= RID_R3; r++)
+    ra_leftov(as, r, args[r-RID_R0]);
+}
+#else
+static void asm_fpmin_max(ASMState *as, IRIns *ir, int cc)
+{
+  Reg dest = (ra_dest(as, ir, RSET_FPR) & 15);
+  Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+  right = ((left >> 8) & 15); left &= 15;
+  if (dest != left) emit_dm(as, ARMF_CC(ARMI_VMOV_D, cc^1), dest, left);
+  if (dest != right) emit_dm(as, ARMF_CC(ARMI_VMOV_D, cc), dest, right);
+  emit_d(as, ARMI_VMRS, 0);
+  emit_dm(as, ARMI_VCMP_D, left, right);
+}
+#endif
+
+static void asm_min_max(ASMState *as, IRIns *ir, int cc, int fcc)
+{
+#if LJ_SOFTFP
+  UNUSED(fcc);
+#else
+  if (irt_isnum(ir->t))
+    asm_fpmin_max(as, ir, fcc);
+  else
+#endif
+    asm_intmin_max(as, ir, cc);
+}
+
+#define asm_min(as, ir)		asm_min_max(as, ir, CC_GT, CC_PL)
+#define asm_max(as, ir)		asm_min_max(as, ir, CC_LT, CC_LE)
+
+/* -- Comparisons --------------------------------------------------------- */
+
+/* Map of comparisons to flags. ORDER IR. */
+static const uint8_t asm_compmap[IR_ABC+1] = {
+  /* op  FP swp  int cc   FP cc */
+  /* LT       */ CC_GE + (CC_HS << 4),
+  /* GE    x  */ CC_LT + (CC_HI << 4),
+  /* LE       */ CC_GT + (CC_HI << 4),
+  /* GT    x  */ CC_LE + (CC_HS << 4),
+  /* ULT   x  */ CC_HS + (CC_LS << 4),
+  /* UGE      */ CC_LO + (CC_LO << 4),
+  /* ULE   x  */ CC_HI + (CC_LO << 4),
+  /* UGT      */ CC_LS + (CC_LS << 4),
+  /* EQ       */ CC_NE + (CC_NE << 4),
+  /* NE       */ CC_EQ + (CC_EQ << 4),
+  /* ABC      */ CC_LS + (CC_LS << 4)  /* Same as UGT. */
+};
+
+#if LJ_SOFTFP
+/* FP comparisons. */
+static void asm_sfpcomp(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_softfp_cmp];
+  RegSet drop = RSET_SCRATCH;
+  Reg r;
+  IRRef args[4];
+  int swp = (((ir->o ^ (ir->o >> 2)) & ~(ir->o >> 3) & 1) << 1);
+  args[swp^0] = ir->op1; args[swp^1] = (ir+1)->op1;
+  args[swp^2] = ir->op2; args[swp^3] = (ir+1)->op2;
+  /* __aeabi_cdcmple preserves r0-r3. This helps to reduce spills. */
+  for (r = RID_R0; r <= RID_R3; r++)
+    if (!rset_test(as->freeset, r) &&
+	regcost_ref(as->cost[r]) == args[r-RID_R0]) rset_clear(drop, r);
+  ra_evictset(as, drop);
+  asm_guardcc(as, (asm_compmap[ir->o] >> 4));
+  emit_call(as, (void *)ci->func);
+  for (r = RID_R0; r <= RID_R3; r++)
+    ra_leftov(as, r, args[r-RID_R0]);
+}
+#else
+/* FP comparisons. */
+static void asm_fpcomp(ASMState *as, IRIns *ir)
+{
+  Reg left, right;
+  ARMIns ai;
+  int swp = ((ir->o ^ (ir->o >> 2)) & ~(ir->o >> 3) & 1);
+  if (!swp && irref_isk(ir->op2) && ir_knum(IR(ir->op2))->u64 == 0) {
+    left = (ra_alloc1(as, ir->op1, RSET_FPR) & 15);
+    right = 0;
+    ai = ARMI_VCMPZ_D;
+  } else {
+    left = ra_alloc2(as, ir, RSET_FPR);
+    if (swp) {
+      right = (left & 15); left = ((left >> 8) & 15);
+    } else {
+      right = ((left >> 8) & 15); left &= 15;
+    }
+    ai = ARMI_VCMP_D;
+  }
+  asm_guardcc(as, (asm_compmap[ir->o] >> 4));
+  emit_d(as, ARMI_VMRS, 0);
+  emit_dm(as, ai, left, right);
+}
+#endif
+
+/* Integer comparisons. */
+static void asm_intcomp(ASMState *as, IRIns *ir)
+{
+  ARMCC cc = (asm_compmap[ir->o] & 15);
+  IRRef lref = ir->op1, rref = ir->op2;
+  Reg left;
+  uint32_t m;
+  int cmpprev0 = 0;
+  lj_assertA(irt_isint(ir->t) || irt_isu32(ir->t) || irt_isaddr(ir->t),
+	     "bad comparison data type %d", irt_type(ir->t));
+  if (asm_swapops(as, lref, rref)) {
+    Reg tmp = lref; lref = rref; rref = tmp;
+    if (cc >= CC_GE) cc ^= 7;  /* LT <-> GT, LE <-> GE */
+    else if (cc > CC_NE) cc ^= 11;  /* LO <-> HI, LS <-> HS */
+  }
+  if (irref_isk(rref) && IR(rref)->i == 0) {
+    IRIns *irl = IR(lref);
+    cmpprev0 = (irl+1 == ir);
+    /* Combine comp(BAND(left, right), 0) into tst left, right. */
+    if (cmpprev0 && irl->o == IR_BAND && !ra_used(irl)) {
+      IRRef blref = irl->op1, brref = irl->op2;
+      uint32_t m2 = 0;
+      Reg bleft;
+      if (asm_swapops(as, blref, brref)) {
+	Reg tmp = blref; blref = brref; brref = tmp;
+      }
+      if (irref_isk(brref)) {
+	m2 = emit_isk12(ARMI_AND, IR(brref)->i);
+	if ((m2 & (ARMI_AND^ARMI_BIC)))
+	  goto notst;  /* Not beneficial if we miss a constant operand. */
+      }
+      if (cc == CC_GE) cc = CC_PL;
+      else if (cc == CC_LT) cc = CC_MI;
+      else if (cc > CC_NE) goto notst;  /* Other conds don't work with tst. */
+      bleft = ra_alloc1(as, blref, RSET_GPR);
+      if (!m2) m2 = asm_fuseopm(as, 0, brref, rset_exclude(RSET_GPR, bleft));
+      asm_guardcc(as, cc);
+      emit_n(as, ARMI_TST^m2, bleft);
+      return;
+    }
+  }
+notst:
+  left = ra_alloc1(as, lref, RSET_GPR);
+  m = asm_fuseopm(as, ARMI_CMP, rref, rset_exclude(RSET_GPR, left));
+  asm_guardcc(as, cc);
+  emit_n(as, ARMI_CMP^m, left);
+  /* Signed comparison with zero and referencing previous ins? */
+  if (cmpprev0 && (cc <= CC_NE || cc >= CC_GE))
+    as->flagmcp = as->mcp;  /* Allow elimination of the compare. */
+}
+
+static void asm_comp(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+  if (irt_isnum(ir->t))
+    asm_fpcomp(as, ir);
+  else
+#endif
+    asm_intcomp(as, ir);
+}
+
+#define asm_equal(as, ir)	asm_comp(as, ir)
+
+#if LJ_HASFFI
+/* 64 bit integer comparisons. */
+static void asm_int64comp(ASMState *as, IRIns *ir)
+{
+  int signedcomp = (ir->o <= IR_GT);
+  ARMCC cclo, cchi;
+  Reg leftlo, lefthi;
+  uint32_t mlo, mhi;
+  RegSet allow = RSET_GPR, oldfree;
+
+  /* Always use unsigned comparison for loword. */
+  cclo = asm_compmap[ir->o + (signedcomp ? 4 : 0)] & 15;
+  leftlo = ra_alloc1(as, ir->op1, allow);
+  oldfree = as->freeset;
+  mlo = asm_fuseopm(as, ARMI_CMP, ir->op2, rset_clear(allow, leftlo));
+  allow &= ~(oldfree & ~as->freeset);  /* Update for allocs of asm_fuseopm. */
+
+  /* Use signed or unsigned comparison for hiword. */
+  cchi = asm_compmap[ir->o] & 15;
+  lefthi = ra_alloc1(as, (ir+1)->op1, allow);
+  mhi = asm_fuseopm(as, ARMI_CMP, (ir+1)->op2, rset_clear(allow, lefthi));
+
+  /* All register allocations must be performed _before_ this point. */
+  if (signedcomp) {
+    MCLabel l_around = emit_label(as);
+    asm_guardcc(as, cclo);
+    emit_n(as, ARMI_CMP^mlo, leftlo);
+    emit_branch(as, ARMF_CC(ARMI_B, CC_NE), l_around);
+    if (cchi == CC_GE || cchi == CC_LE) cchi ^= 6;  /* GE -> GT, LE -> LT */
+    asm_guardcc(as, cchi);
+  } else {
+    asm_guardcc(as, cclo);
+    emit_n(as, ARMF_CC(ARMI_CMP, CC_EQ)^mlo, leftlo);
+  }
+  emit_n(as, ARMI_CMP^mhi, lefthi);
+}
+#endif
+
+/* -- Split register ops -------------------------------------------------- */
+
+/* Hiword op of a split 32/32 bit op. Previous op is the loword op. */
+static void asm_hiop(ASMState *as, IRIns *ir)
+{
+  /* HIOP is marked as a store because it needs its own DCE logic. */
+  int uselo = ra_used(ir-1), usehi = ra_used(ir);  /* Loword/hiword used? */
+  if (LJ_UNLIKELY(!(as->flags & JIT_F_OPT_DCE))) uselo = usehi = 1;
+#if LJ_HASFFI || LJ_SOFTFP
+  if ((ir-1)->o <= IR_NE) {  /* 64 bit integer or FP comparisons. ORDER IR. */
+    as->curins--;  /* Always skip the loword comparison. */
+#if LJ_SOFTFP
+    if (!irt_isint(ir->t)) {
+      asm_sfpcomp(as, ir-1);
+      return;
+    }
+#endif
+#if LJ_HASFFI
+    asm_int64comp(as, ir-1);
+#endif
+    return;
+#if LJ_SOFTFP
+  } else if ((ir-1)->o == IR_MIN || (ir-1)->o == IR_MAX) {
+    as->curins--;  /* Always skip the loword min/max. */
+    if (uselo || usehi)
+      asm_sfpmin_max(as, ir-1, (ir-1)->o == IR_MIN ? CC_PL : CC_LE);
+    return;
+#elif LJ_HASFFI
+  } else if ((ir-1)->o == IR_CONV) {
+    as->curins--;  /* Always skip the CONV. */
+    if (usehi || uselo)
+      asm_conv64(as, ir);
+    return;
+#endif
+  } else if ((ir-1)->o == IR_XSTORE) {
+    if ((ir-1)->r != RID_SINK)
+      asm_xstore_(as, ir, 4);
+    return;
+  }
+#endif
+  if (!usehi) return;  /* Skip unused hiword op for all remaining ops. */
+  switch ((ir-1)->o) {
+#if LJ_HASFFI
+  case IR_ADD:
+    as->curins--;
+    asm_intop(as, ir, ARMI_ADC);
+    asm_intop(as, ir-1, ARMI_ADD|ARMI_S);
+    break;
+  case IR_SUB:
+    as->curins--;
+    asm_intop(as, ir, ARMI_SBC);
+    asm_intop(as, ir-1, ARMI_SUB|ARMI_S);
+    break;
+  case IR_NEG:
+    as->curins--;
+    asm_intneg(as, ir, ARMI_RSC);
+    asm_intneg(as, ir-1, ARMI_RSB|ARMI_S);
+    break;
+  case IR_CNEWI:
+    /* Nothing to do here. Handled by lo op itself. */
+    break;
+#endif
+#if LJ_SOFTFP
+  case IR_SLOAD: case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+  case IR_STRTO:
+    if (!uselo)
+      ra_allocref(as, ir->op1, RSET_GPR);  /* Mark lo op as used. */
+    break;
+  case IR_ASTORE: case IR_HSTORE: case IR_USTORE: case IR_TOSTR: case IR_TMPREF:
+    /* Nothing to do here. Handled by lo op itself. */
+    break;
+#endif
+  case IR_CALLN: case IR_CALLL: case IR_CALLS: case IR_CALLXS:
+    if (!uselo)
+      ra_allocref(as, ir->op1, RID2RSET(RID_RETLO));  /* Mark lo op as used. */
+    break;
+  default: lj_assertA(0, "bad HIOP for op %d", (ir-1)->o); break;
+  }
+}
+
+/* -- Profiling ----------------------------------------------------------- */
+
+static void asm_prof(ASMState *as, IRIns *ir)
+{
+  UNUSED(ir);
+  asm_guardcc(as, CC_NE);
+  emit_n(as, ARMI_TST|ARMI_K12|HOOK_PROFILE, RID_TMP);
+  emit_lsptr(as, ARMI_LDRB, RID_TMP, (void *)&J2G(as->J)->hookmask);
+}
+
+/* -- Stack handling ------------------------------------------------------ */
+
+/* Check Lua stack size for overflow. Use exit handler as fallback. */
+static void asm_stack_check(ASMState *as, BCReg topslot,
+			    IRIns *irp, RegSet allow, ExitNo exitno)
+{
+  Reg pbase;
+  uint32_t k;
+  if (irp) {
+    if (!ra_hasspill(irp->s)) {
+      pbase = irp->r;
+      lj_assertA(ra_hasreg(pbase), "base reg lost");
+    } else if (allow) {
+      pbase = rset_pickbot(allow);
+    } else {
+      pbase = RID_RET;
+      emit_lso(as, ARMI_LDR, RID_RET, RID_SP, 0);  /* Restore temp. register. */
+    }
+  } else {
+    pbase = RID_BASE;
+  }
+  emit_branch(as, ARMF_CC(ARMI_BL, CC_LS), exitstub_addr(as->J, exitno));
+  k = emit_isk12(0, (int32_t)(8*topslot));
+  lj_assertA(k, "slot offset %d does not fit in K12", 8*topslot);
+  emit_n(as, ARMI_CMP^k, RID_TMP);
+  emit_dnm(as, ARMI_SUB, RID_TMP, RID_TMP, pbase);
+  emit_lso(as, ARMI_LDR, RID_TMP, RID_TMP,
+	   (int32_t)offsetof(lua_State, maxstack));
+  if (irp) {  /* Must not spill arbitrary registers in head of side trace. */
+    int32_t i = i32ptr(&J2G(as->J)->cur_L);
+    if (ra_hasspill(irp->s))
+      emit_lso(as, ARMI_LDR, pbase, RID_SP, sps_scale(irp->s));
+    emit_lso(as, ARMI_LDR, RID_TMP, RID_TMP, (i & 4095));
+    if (ra_hasspill(irp->s) && !allow)
+      emit_lso(as, ARMI_STR, RID_RET, RID_SP, 0);  /* Save temp. register. */
+    emit_loadi(as, RID_TMP, (i & ~4095));
+  } else {
+    emit_getgl(as, RID_TMP, cur_L);
+  }
+}
+
+/* Restore Lua stack from on-trace state. */
+static void asm_stack_restore(ASMState *as, SnapShot *snap)
+{
+  SnapEntry *map = &as->T->snapmap[snap->mapofs];
+  SnapEntry *flinks = &as->T->snapmap[snap_nextofs(as->T, snap)-1];
+  MSize n, nent = snap->nent;
+  /* Store the value of all modified slots to the Lua stack. */
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    BCReg s = snap_slot(sn);
+    int32_t ofs = 8*((int32_t)s-1);
+    IRRef ref = snap_ref(sn);
+    IRIns *ir = IR(ref);
+    if ((sn & SNAP_NORESTORE))
+      continue;
+    if (irt_isnum(ir->t)) {
+#if LJ_SOFTFP
+      RegSet odd = rset_exclude(RSET_GPRODD, RID_BASE);
+      Reg tmp;
+      /* LJ_SOFTFP: must be a number constant. */
+      lj_assertA(irref_isk(ref), "unsplit FP op");
+      tmp = ra_allock(as, (int32_t)ir_knum(ir)->u32.lo,
+		      rset_exclude(RSET_GPREVEN, RID_BASE));
+      emit_lso(as, ARMI_STR, tmp, RID_BASE, ofs);
+      if (rset_test(as->freeset, tmp+1)) odd = RID2RSET(tmp+1);
+      tmp = ra_allock(as, (int32_t)ir_knum(ir)->u32.hi, odd);
+      emit_lso(as, ARMI_STR, tmp, RID_BASE, ofs+4);
+#else
+      Reg src = ra_alloc1(as, ref, RSET_FPR);
+      emit_vlso(as, ARMI_VSTR_D, src, RID_BASE, ofs);
+#endif
+    } else {
+      RegSet odd = rset_exclude(RSET_GPRODD, RID_BASE);
+      Reg type;
+      lj_assertA(irt_ispri(ir->t) || irt_isaddr(ir->t) || irt_isinteger(ir->t),
+		 "restore of IR type %d", irt_type(ir->t));
+      if (!irt_ispri(ir->t)) {
+	Reg src = ra_alloc1(as, ref, rset_exclude(RSET_GPREVEN, RID_BASE));
+	emit_lso(as, ARMI_STR, src, RID_BASE, ofs);
+	if (rset_test(as->freeset, src+1)) odd = RID2RSET(src+1);
+      }
+      if ((sn & (SNAP_CONT|SNAP_FRAME))) {
+	if (s == 0) continue;  /* Do not overwrite link to previous frame. */
+	type = ra_allock(as, (int32_t)(*flinks--), odd);
+#if LJ_SOFTFP
+      } else if ((sn & SNAP_SOFTFPNUM)) {
+	type = ra_alloc1(as, ref+1, rset_exclude(RSET_GPRODD, RID_BASE));
+#endif
+      } else if ((sn & SNAP_KEYINDEX)) {
+	type = ra_allock(as, (int32_t)LJ_KEYINDEX, odd);
+      } else {
+	type = ra_allock(as, (int32_t)irt_toitype(ir->t), odd);
+      }
+      emit_lso(as, ARMI_STR, type, RID_BASE, ofs+4);
+    }
+    checkmclim(as);
+  }
+  lj_assertA(map + nent == flinks, "inconsistent frames in snapshot");
+}
+
+/* -- GC handling --------------------------------------------------------- */
+
+/* Marker to prevent patching the GC check exit. */
+#define ARM_NOPATCH_GC_CHECK	(ARMI_BIC|ARMI_K12)
+
+/* Check GC threshold and do one or more GC steps. */
+static void asm_gc_check(ASMState *as)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_step_jit];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg tmp1, tmp2;
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  /* Exit trace if in GCSatomic or GCSfinalize. Avoids syncing GC objects. */
+  asm_guardcc(as, CC_NE);  /* Assumes asm_snap_prep() already done. */
+  *--as->mcp = ARM_NOPATCH_GC_CHECK;
+  emit_n(as, ARMI_CMP|ARMI_K12|0, RID_RET);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ASMREF_TMP2;  /* MSize steps     */
+  asm_gencall(as, ci, args);
+  tmp1 = ra_releasetmp(as, ASMREF_TMP1);
+  tmp2 = ra_releasetmp(as, ASMREF_TMP2);
+  emit_loadi(as, tmp2, as->gcsteps);
+  /* Jump around GC step if GC total < GC threshold. */
+  emit_branch(as, ARMF_CC(ARMI_B, CC_LS), l_end);
+  emit_nm(as, ARMI_CMP, RID_TMP, tmp2);
+  emit_lso(as, ARMI_LDR, tmp2, tmp1,
+	   (int32_t)offsetof(global_State, gc.threshold));
+  emit_lso(as, ARMI_LDR, RID_TMP, tmp1,
+	   (int32_t)offsetof(global_State, gc.total));
+  ra_allockreg(as, i32ptr(J2G(as->J)), tmp1);
+  as->gcsteps = 0;
+  checkmclim(as);
+}
+
+/* -- Loop handling ------------------------------------------------------- */
+
+/* Fixup the loop branch. */
+static void asm_loop_fixup(ASMState *as)
+{
+  MCode *p = as->mctop;
+  MCode *target = as->mcp;
+  if (as->loopinv) {  /* Inverted loop branch? */
+    /* asm_guardcc already inverted the bcc and patched the final bl. */
+    p[-2] |= ((uint32_t)(target-p) & 0x00ffffffu);
+  } else {
+    p[-1] = ARMI_B | ((uint32_t)((target-p)-1) & 0x00ffffffu);
+  }
+}
+
+/* Fixup the tail of the loop. */
+static void asm_loop_tail_fixup(ASMState *as)
+{
+  UNUSED(as);  /* Nothing to do. */
+}
+
+/* -- Head of trace ------------------------------------------------------- */
+
+/* Reload L register from g->cur_L. */
+static void asm_head_lreg(ASMState *as)
+{
+  IRIns *ir = IR(ASMREF_L);
+  if (ra_used(ir)) {
+    Reg r = ra_dest(as, ir, RSET_GPR);
+    emit_getgl(as, r, cur_L);
+    ra_evictk(as);
+  }
+}
+
+/* Coalesce BASE register for a root trace. */
+static void asm_head_root_base(ASMState *as)
+{
+  IRIns *ir;
+  asm_head_lreg(as);
+  ir = IR(REF_BASE);
+  if (ra_hasreg(ir->r) && (rset_test(as->modset, ir->r) || irt_ismarked(ir->t)))
+    ra_spill(as, ir);
+  ra_destreg(as, ir, RID_BASE);
+}
+
+/* Coalesce BASE register for a side trace. */
+static RegSet asm_head_side_base(ASMState *as, IRIns *irp, RegSet allow)
+{
+  IRIns *ir;
+  asm_head_lreg(as);
+  ir = IR(REF_BASE);
+  if (ra_hasreg(ir->r) && (rset_test(as->modset, ir->r) || irt_ismarked(ir->t)))
+    ra_spill(as, ir);
+  if (ra_hasspill(irp->s)) {
+    rset_clear(allow, ra_dest(as, ir, allow));
+  } else {
+    Reg r = irp->r;
+    lj_assertA(ra_hasreg(r), "base reg lost");
+    rset_clear(allow, r);
+    if (r != ir->r && !rset_test(as->freeset, r))
+      ra_restore(as, regcost_ref(as->cost[r]));
+    ra_destreg(as, ir, r);
+  }
+  return allow;
+}
+
+/* -- Tail of trace ------------------------------------------------------- */
+
+/* Fixup the tail code. */
+static void asm_tail_fixup(ASMState *as, TraceNo lnk)
+{
+  MCode *p = as->mctop;
+  MCode *target;
+  int32_t spadj = as->T->spadjust;
+  if (spadj == 0) {
+    as->mctop = --p;
+  } else {
+    /* Patch stack adjustment. */
+    uint32_t k = emit_isk12(ARMI_ADD, spadj);
+    lj_assertA(k, "stack adjustment %d does not fit in K12", spadj);
+    p[-2] = (ARMI_ADD^k) | ARMF_D(RID_SP) | ARMF_N(RID_SP);
+  }
+  /* Patch exit branch. */
+  target = lnk ? traceref(as->J, lnk)->mcode : (MCode *)lj_vm_exit_interp;
+  p[-1] = ARMI_B|(((target-p)-1)&0x00ffffffu);
+}
+
+/* Prepare tail of code. */
+static void asm_tail_prep(ASMState *as)
+{
+  MCode *p = as->mctop - 1;  /* Leave room for exit branch. */
+  if (as->loopref) {
+    as->invmcp = as->mcp = p;
+  } else {
+    as->mcp = p-1;  /* Leave room for stack pointer adjustment. */
+    as->invmcp = NULL;
+  }
+  *p = 0;  /* Prevent load/store merging. */
+}
+
+/* -- Trace setup --------------------------------------------------------- */
+
+/* Ensure there are enough stack slots for call arguments. */
+static Reg asm_setup_call_slots(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  uint32_t i, nargs = CCI_XNARGS(ci);
+  int nslots = 0, ngpr = REGARG_NUMGPR, nfpr = REGARG_NUMFPR, fprodd = 0;
+  asm_collectargs(as, ir, ci, args);
+  for (i = 0; i < nargs; i++) {
+    if (!LJ_SOFTFP && args[i] && irt_isfp(IR(args[i])->t)) {
+      if (!LJ_ABI_SOFTFP && !(ci->flags & CCI_VARARG)) {
+	if (irt_isnum(IR(args[i])->t)) {
+	  if (nfpr > 0) nfpr--;
+	  else fprodd = 0, nslots = (nslots + 3) & ~1;
+	} else {
+	  if (fprodd) fprodd--;
+	  else if (nfpr > 0) fprodd = 1, nfpr--;
+	  else nslots++;
+	}
+      } else if (irt_isnum(IR(args[i])->t)) {
+	ngpr &= ~1;
+	if (ngpr > 0) ngpr -= 2; else nslots += 2;
+      } else {
+	if (ngpr > 0) ngpr--; else nslots++;
+      }
+    } else {
+      if (ngpr > 0) ngpr--; else nslots++;
+    }
+  }
+  if (nslots > as->evenspill)  /* Leave room for args in stack slots. */
+    as->evenspill = nslots;
+  return REGSP_HINT(RID_RET);
+}
+
+static void asm_setup_target(ASMState *as)
+{
+  /* May need extra exit for asm_stack_check on side traces. */
+  asm_exitstub_setup(as, as->T->nsnap + (as->parent ? 1 : 0));
+}
+
+/* -- Trace patching ------------------------------------------------------ */
+
+/* Patch exit jumps of existing machine code to a new target. */
+void lj_asm_patchexit(jit_State *J, GCtrace *T, ExitNo exitno, MCode *target)
+{
+  MCode *p = T->mcode;
+  MCode *pe = (MCode *)((char *)p + T->szmcode);
+  MCode *cstart = NULL, *cend = p;
+  MCode *mcarea = lj_mcode_patch(J, p, 0);
+  MCode *px = exitstub_addr(J, exitno) - 2;
+  for (; p < pe; p++) {
+    /* Look for bl_cc exitstub, replace with b_cc target. */
+    uint32_t ins = *p;
+    if ((ins & 0x0f000000u) == 0x0b000000u && ins < 0xf0000000u &&
+	((ins ^ (px-p)) & 0x00ffffffu) == 0 &&
+	p[-1] != ARM_NOPATCH_GC_CHECK) {
+      *p = (ins & 0xfe000000u) | (((target-p)-2) & 0x00ffffffu);
+      cend = p+1;
+      if (!cstart) cstart = p;
+    }
+  }
+  lj_assertJ(cstart != NULL, "exit stub %d not found", exitno);
+  lj_mcode_sync(cstart, cend);
+  lj_mcode_patch(J, mcarea, 1);
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_asm_arm64.h b/libs/luajit-cmake/luajit/src/lj_asm_arm64.h
new file mode 100644
index 0000000..4b7066f
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_asm_arm64.h
@@ -0,0 +1,2070 @@
+/*
+** ARM64 IR assembler (SSA IR -> machine code).
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Contributed by Djordje Kovacevic and Stefan Pejic from RT-RK.com.
+** Sponsored by Cisco Systems, Inc.
+*/
+
+/* -- Register allocator extensions --------------------------------------- */
+
+/* Allocate a register with a hint. */
+static Reg ra_hintalloc(ASMState *as, IRRef ref, Reg hint, RegSet allow)
+{
+  Reg r = IR(ref)->r;
+  if (ra_noreg(r)) {
+    if (!ra_hashint(r) && !iscrossref(as, ref))
+      ra_sethint(IR(ref)->r, hint);  /* Propagate register hint. */
+    r = ra_allocref(as, ref, allow);
+  }
+  ra_noweak(as, r);
+  return r;
+}
+
+/* Allocate two source registers for three-operand instructions. */
+static Reg ra_alloc2(ASMState *as, IRIns *ir, RegSet allow)
+{
+  IRIns *irl = IR(ir->op1), *irr = IR(ir->op2);
+  Reg left = irl->r, right = irr->r;
+  if (ra_hasreg(left)) {
+    ra_noweak(as, left);
+    if (ra_noreg(right))
+      right = ra_allocref(as, ir->op2, rset_exclude(allow, left));
+    else
+      ra_noweak(as, right);
+  } else if (ra_hasreg(right)) {
+    ra_noweak(as, right);
+    left = ra_allocref(as, ir->op1, rset_exclude(allow, right));
+  } else if (ra_hashint(right)) {
+    right = ra_allocref(as, ir->op2, allow);
+    left = ra_alloc1(as, ir->op1, rset_exclude(allow, right));
+  } else {
+    left = ra_allocref(as, ir->op1, allow);
+    right = ra_alloc1(as, ir->op2, rset_exclude(allow, left));
+  }
+  return left | (right << 8);
+}
+
+/* -- Guard handling ------------------------------------------------------ */
+
+/* Setup all needed exit stubs. */
+static void asm_exitstub_setup(ASMState *as, ExitNo nexits)
+{
+  ExitNo i;
+  MCode *mxp = as->mctop;
+  if (mxp - (nexits + 3 + MCLIM_REDZONE) < as->mclim)
+    asm_mclimit(as);
+  /* 1: str lr,[sp]; bl ->vm_exit_handler; movz w0,traceno; bl <1; bl <1; ... */
+  for (i = nexits-1; (int32_t)i >= 0; i--)
+    *--mxp = A64I_LE(A64I_BL | A64F_S26(-3-i));
+  *--mxp = A64I_LE(A64I_MOVZw | A64F_U16(as->T->traceno));
+  mxp--;
+  *mxp = A64I_LE(A64I_BL | A64F_S26(((MCode *)(void *)lj_vm_exit_handler-mxp)));
+  *--mxp = A64I_LE(A64I_STRx | A64F_D(RID_LR) | A64F_N(RID_SP));
+  as->mctop = mxp;
+}
+
+static MCode *asm_exitstub_addr(ASMState *as, ExitNo exitno)
+{
+  /* Keep this in-sync with exitstub_trace_addr(). */
+  return as->mctop + exitno + 3;
+}
+
+/* Emit conditional branch to exit for guard. */
+static void asm_guardcc(ASMState *as, A64CC cc)
+{
+  MCode *target = asm_exitstub_addr(as, as->snapno);
+  MCode *p = as->mcp;
+  if (LJ_UNLIKELY(p == as->invmcp)) {
+    as->loopinv = 1;
+    *p = A64I_B | A64F_S26(target-p);
+    emit_cond_branch(as, cc^1, p-1);
+    return;
+  }
+  emit_cond_branch(as, cc, target);
+}
+
+/* Emit test and branch instruction to exit for guard. */
+static void asm_guardtnb(ASMState *as, A64Ins ai, Reg r, uint32_t bit)
+{
+  MCode *target = asm_exitstub_addr(as, as->snapno);
+  MCode *p = as->mcp;
+  if (LJ_UNLIKELY(p == as->invmcp)) {
+    as->loopinv = 1;
+    *p = A64I_B | A64F_S26(target-p);
+    emit_tnb(as, ai^0x01000000u, r, bit, p-1);
+    return;
+  }
+  emit_tnb(as, ai, r, bit, target);
+}
+
+/* Emit compare and branch instruction to exit for guard. */
+static void asm_guardcnb(ASMState *as, A64Ins ai, Reg r)
+{
+  MCode *target = asm_exitstub_addr(as, as->snapno);
+  MCode *p = as->mcp;
+  if (LJ_UNLIKELY(p == as->invmcp)) {
+    as->loopinv = 1;
+    *p = A64I_B | A64F_S26(target-p);
+    emit_cnb(as, ai^0x01000000u, r, p-1);
+    return;
+  }
+  emit_cnb(as, ai, r, target);
+}
+
+/* -- Operand fusion ------------------------------------------------------ */
+
+/* Limit linear search to this distance. Avoids O(n^2) behavior. */
+#define CONFLICT_SEARCH_LIM	31
+
+static int asm_isk32(ASMState *as, IRRef ref, int32_t *k)
+{
+  if (irref_isk(ref)) {
+    IRIns *ir = IR(ref);
+    if (ir->o == IR_KNULL || !irt_is64(ir->t)) {
+      *k = ir->i;
+      return 1;
+    } else if (checki32((int64_t)ir_k64(ir)->u64)) {
+      *k = (int32_t)ir_k64(ir)->u64;
+      return 1;
+    }
+  }
+  return 0;
+}
+
+/* Check if there's no conflicting instruction between curins and ref. */
+static int noconflict(ASMState *as, IRRef ref, IROp conflict)
+{
+  IRIns *ir = as->ir;
+  IRRef i = as->curins;
+  if (i > ref + CONFLICT_SEARCH_LIM)
+    return 0;  /* Give up, ref is too far away. */
+  while (--i > ref)
+    if (ir[i].o == conflict)
+      return 0;  /* Conflict found. */
+  return 1;  /* Ok, no conflict. */
+}
+
+/* Fuse the array base of colocated arrays. */
+static int32_t asm_fuseabase(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (ir->o == IR_TNEW && ir->op1 <= LJ_MAX_COLOSIZE &&
+      !neverfuse(as) && noconflict(as, ref, IR_NEWREF))
+    return (int32_t)sizeof(GCtab);
+  return 0;
+}
+
+#define FUSE_REG	0x40000000
+
+/* Fuse array/hash/upvalue reference into register+offset operand. */
+static Reg asm_fuseahuref(ASMState *as, IRRef ref, int32_t *ofsp, RegSet allow,
+			  A64Ins ins)
+{
+  IRIns *ir = IR(ref);
+  if (ra_noreg(ir->r)) {
+    if (ir->o == IR_AREF) {
+      if (mayfuse(as, ref)) {
+	if (irref_isk(ir->op2)) {
+	  IRRef tab = IR(ir->op1)->op1;
+	  int32_t ofs = asm_fuseabase(as, tab);
+	  IRRef refa = ofs ? tab : ir->op1;
+	  ofs += 8*IR(ir->op2)->i;
+	  if (emit_checkofs(ins, ofs)) {
+	    *ofsp = ofs;
+	    return ra_alloc1(as, refa, allow);
+	  }
+	} else {
+	  Reg base = ra_alloc1(as, ir->op1, allow);
+	  *ofsp = FUSE_REG|ra_alloc1(as, ir->op2, rset_exclude(allow, base));
+	  return base;
+	}
+      }
+    } else if (ir->o == IR_HREFK) {
+      if (mayfuse(as, ref)) {
+	int32_t ofs = (int32_t)(IR(ir->op2)->op2 * sizeof(Node));
+	if (emit_checkofs(ins, ofs)) {
+	  *ofsp = ofs;
+	  return ra_alloc1(as, ir->op1, allow);
+	}
+      }
+    } else if (ir->o == IR_UREFC) {
+      if (irref_isk(ir->op1)) {
+	GCfunc *fn = ir_kfunc(IR(ir->op1));
+	GCupval *uv = &gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv;
+	int64_t ofs = glofs(as, &uv->tv);
+	if (emit_checkofs(ins, ofs)) {
+	  *ofsp = (int32_t)ofs;
+	  return RID_GL;
+	}
+      }
+    } else if (ir->o == IR_TMPREF) {
+      *ofsp = (int32_t)glofs(as, &J2G(as->J)->tmptv);
+      return RID_GL;
+    }
+  }
+  *ofsp = 0;
+  return ra_alloc1(as, ref, allow);
+}
+
+/* Fuse m operand into arithmetic/logic instructions. */
+static uint32_t asm_fuseopm(ASMState *as, A64Ins ai, IRRef ref, RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  if (ra_hasreg(ir->r)) {
+    ra_noweak(as, ir->r);
+    return A64F_M(ir->r);
+  } else if (irref_isk(ref)) {
+    uint32_t m;
+    int64_t k = get_k64val(as, ref);
+    if ((ai & 0x1f000000) == 0x0a000000)
+      m = emit_isk13(k, irt_is64(ir->t));
+    else
+      m = emit_isk12(k);
+    if (m)
+      return m;
+  } else if (mayfuse(as, ref)) {
+    if ((ir->o >= IR_BSHL && ir->o <= IR_BSAR && irref_isk(ir->op2)) ||
+	(ir->o == IR_ADD && ir->op1 == ir->op2)) {
+      A64Shift sh = ir->o == IR_BSHR ? A64SH_LSR :
+		    ir->o == IR_BSAR ? A64SH_ASR : A64SH_LSL;
+      int shift = ir->o == IR_ADD ? 1 :
+		    (IR(ir->op2)->i & (irt_is64(ir->t) ? 63 : 31));
+      IRIns *irl = IR(ir->op1);
+      if (sh == A64SH_LSL &&
+	  irl->o == IR_CONV &&
+	  irl->op2 == ((IRT_I64<<IRCONV_DSH)|IRT_INT|IRCONV_SEXT) &&
+	  shift <= 4 &&
+	  canfuse(as, irl)) {
+	Reg m = ra_alloc1(as, irl->op1, allow);
+	return A64F_M(m) | A64F_EXSH(A64EX_SXTW, shift);
+      } else {
+	Reg m = ra_alloc1(as, ir->op1, allow);
+	return A64F_M(m) | A64F_SH(sh, shift);
+      }
+    } else if (ir->o == IR_CONV &&
+	       ir->op2 == ((IRT_I64<<IRCONV_DSH)|IRT_INT|IRCONV_SEXT)) {
+      Reg m = ra_alloc1(as, ir->op1, allow);
+      return A64F_M(m) | A64F_EX(A64EX_SXTW);
+    }
+  }
+  return A64F_M(ra_allocref(as, ref, allow));
+}
+
+/* Fuse XLOAD/XSTORE reference into load/store operand. */
+static void asm_fusexref(ASMState *as, A64Ins ai, Reg rd, IRRef ref,
+			 RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  Reg base;
+  int32_t ofs = 0;
+  if (ra_noreg(ir->r) && canfuse(as, ir)) {
+    if (ir->o == IR_ADD) {
+      if (asm_isk32(as, ir->op2, &ofs) && emit_checkofs(ai, ofs)) {
+	ref = ir->op1;
+      } else {
+	Reg rn, rm;
+	IRRef lref = ir->op1, rref = ir->op2;
+	IRIns *irl = IR(lref);
+	if (mayfuse(as, irl->op1)) {
+	  unsigned int shift = 4;
+	  if (irl->o == IR_BSHL && irref_isk(irl->op2)) {
+	    shift = (IR(irl->op2)->i & 63);
+	  } else if (irl->o == IR_ADD && irl->op1 == irl->op2) {
+	    shift = 1;
+	  }
+	  if ((ai >> 30) == shift) {
+	    lref = irl->op1;
+	    irl = IR(lref);
+	    ai |= A64I_LS_SH;
+	  }
+	}
+	if (irl->o == IR_CONV &&
+	    irl->op2 == ((IRT_I64<<IRCONV_DSH)|IRT_INT|IRCONV_SEXT) &&
+	    canfuse(as, irl)) {
+	  lref = irl->op1;
+	  ai |= A64I_LS_SXTWx;
+	} else {
+	  ai |= A64I_LS_LSLx;
+	}
+	rm = ra_alloc1(as, lref, allow);
+	rn = ra_alloc1(as, rref, rset_exclude(allow, rm));
+	emit_dnm(as, (ai^A64I_LS_R), (rd & 31), rn, rm);
+	return;
+      }
+    } else if (ir->o == IR_STRREF) {
+      if (asm_isk32(as, ir->op2, &ofs)) {
+	ref = ir->op1;
+      } else if (asm_isk32(as, ir->op1, &ofs)) {
+	ref = ir->op2;
+      } else {
+	Reg refk = irref_isk(ir->op1) ? ir->op1 : ir->op2;
+	Reg refv = irref_isk(ir->op1) ? ir->op2 : ir->op1;
+	Reg rn = ra_alloc1(as, refv, allow);
+	IRIns *irr = IR(refk);
+	uint32_t m;
+	if (irr+1 == ir && !ra_used(irr) &&
+	    irr->o == IR_ADD && irref_isk(irr->op2)) {
+	  ofs = sizeof(GCstr) + IR(irr->op2)->i;
+	  if (emit_checkofs(ai, ofs)) {
+	    Reg rm = ra_alloc1(as, irr->op1, rset_exclude(allow, rn));
+	    m = A64F_M(rm) | A64F_EX(A64EX_SXTW);
+	    goto skipopm;
+	  }
+	}
+	m = asm_fuseopm(as, 0, refk, rset_exclude(allow, rn));
+	ofs = sizeof(GCstr);
+      skipopm:
+	emit_lso(as, ai, rd, rd, ofs);
+	emit_dn(as, A64I_ADDx^m, rd, rn);
+	return;
+      }
+      ofs += sizeof(GCstr);
+      if (!emit_checkofs(ai, ofs)) {
+	Reg rn = ra_alloc1(as, ref, allow);
+	Reg rm = ra_allock(as, ofs, rset_exclude(allow, rn));
+	emit_dnm(as, (ai^A64I_LS_R)|A64I_LS_UXTWx, rd, rn, rm);
+	return;
+      }
+    }
+  }
+  base = ra_alloc1(as, ref, allow);
+  emit_lso(as, ai, (rd & 31), base, ofs);
+}
+
+/* Fuse FP multiply-add/sub. */
+static int asm_fusemadd(ASMState *as, IRIns *ir, A64Ins ai, A64Ins air)
+{
+  IRRef lref = ir->op1, rref = ir->op2;
+  IRIns *irm;
+  if (lref != rref &&
+      ((mayfuse(as, lref) && (irm = IR(lref), irm->o == IR_MUL) &&
+       ra_noreg(irm->r)) ||
+       (mayfuse(as, rref) && (irm = IR(rref), irm->o == IR_MUL) &&
+       (rref = lref, ai = air, ra_noreg(irm->r))))) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    Reg add = ra_hintalloc(as, rref, dest, RSET_FPR);
+    Reg left = ra_alloc2(as, irm,
+			 rset_exclude(rset_exclude(RSET_FPR, dest), add));
+    Reg right = (left >> 8); left &= 255;
+    emit_dnma(as, ai, (dest & 31), (left & 31), (right & 31), (add & 31));
+    return 1;
+  }
+  return 0;
+}
+
+/* Fuse BAND + BSHL/BSHR into UBFM. */
+static int asm_fuseandshift(ASMState *as, IRIns *ir)
+{
+  IRIns *irl = IR(ir->op1);
+  lj_assertA(ir->o == IR_BAND, "bad usage");
+  if (canfuse(as, irl) && irref_isk(ir->op2)) {
+    uint64_t mask = get_k64val(as, ir->op2);
+    if (irref_isk(irl->op2) && (irl->o == IR_BSHR || irl->o == IR_BSHL)) {
+      int32_t shmask = irt_is64(irl->t) ? 63 : 31;
+      int32_t shift = (IR(irl->op2)->i & shmask);
+      int32_t imms = shift;
+      if (irl->o == IR_BSHL) {
+	mask >>= shift;
+	shift = (shmask-shift+1) & shmask;
+	imms = 0;
+      }
+      if (mask && !((mask+1) & mask)) {  /* Contiguous 1-bits at the bottom. */
+	Reg dest = ra_dest(as, ir, RSET_GPR);
+	Reg left = ra_alloc1(as, irl->op1, RSET_GPR);
+	A64Ins ai = shmask == 63 ? A64I_UBFMx : A64I_UBFMw;
+	imms += 63 - emit_clz64(mask);
+	if (imms > shmask) imms = shmask;
+	emit_dn(as, ai | A64F_IMMS(imms) | A64F_IMMR(shift), dest, left);
+	return 1;
+      }
+    }
+  }
+  return 0;
+}
+
+/* Fuse BOR(BSHL, BSHR) into EXTR/ROR. */
+static int asm_fuseorshift(ASMState *as, IRIns *ir)
+{
+  IRIns *irl = IR(ir->op1), *irr = IR(ir->op2);
+  lj_assertA(ir->o == IR_BOR, "bad usage");
+  if (canfuse(as, irl) && canfuse(as, irr) &&
+      ((irl->o == IR_BSHR && irr->o == IR_BSHL) ||
+       (irl->o == IR_BSHL && irr->o == IR_BSHR))) {
+    if (irref_isk(irl->op2) && irref_isk(irr->op2)) {
+      IRRef lref = irl->op1, rref = irr->op1;
+      uint32_t lshift = IR(irl->op2)->i, rshift = IR(irr->op2)->i;
+      if (irl->o == IR_BSHR) {  /* BSHR needs to be the right operand. */
+	uint32_t tmp2;
+	IRRef tmp1 = lref; lref = rref; rref = tmp1;
+	tmp2 = lshift; lshift = rshift; rshift = tmp2;
+      }
+      if (rshift + lshift == (irt_is64(ir->t) ? 64 : 32)) {
+	A64Ins ai = irt_is64(ir->t) ? A64I_EXTRx : A64I_EXTRw;
+	Reg dest = ra_dest(as, ir, RSET_GPR);
+	Reg left = ra_alloc1(as, lref, RSET_GPR);
+	Reg right = ra_alloc1(as, rref, rset_exclude(RSET_GPR, left));
+	emit_dnm(as, ai | A64F_IMMS(rshift), dest, left, right);
+	return 1;
+      }
+    }
+  }
+  return 0;
+}
+
+/* -- Calls --------------------------------------------------------------- */
+
+/* Generate a call to a C function. */
+static void asm_gencall(ASMState *as, const CCallInfo *ci, IRRef *args)
+{
+  uint32_t n, nargs = CCI_XNARGS(ci);
+  int32_t ofs = 0;
+  Reg gpr, fpr = REGARG_FIRSTFPR;
+  if ((void *)ci->func)
+    emit_call(as, (void *)ci->func);
+  for (gpr = REGARG_FIRSTGPR; gpr <= REGARG_LASTGPR; gpr++)
+    as->cost[gpr] = REGCOST(~0u, ASMREF_L);
+  gpr = REGARG_FIRSTGPR;
+  for (n = 0; n < nargs; n++) { /* Setup args. */
+    IRRef ref = args[n];
+    IRIns *ir = IR(ref);
+    if (ref) {
+      if (irt_isfp(ir->t)) {
+	if (fpr <= REGARG_LASTFPR) {
+	  lj_assertA(rset_test(as->freeset, fpr),
+		     "reg %d not free", fpr);  /* Must have been evicted. */
+	  ra_leftov(as, fpr, ref);
+	  fpr++;
+	} else {
+	  Reg r = ra_alloc1(as, ref, RSET_FPR);
+	  emit_spstore(as, ir, r, ofs + ((LJ_BE && !irt_isnum(ir->t)) ? 4 : 0));
+	  ofs += 8;
+	}
+      } else {
+	if (gpr <= REGARG_LASTGPR) {
+	  lj_assertA(rset_test(as->freeset, gpr),
+		     "reg %d not free", gpr);  /* Must have been evicted. */
+	  ra_leftov(as, gpr, ref);
+	  gpr++;
+	} else {
+	  Reg r = ra_alloc1(as, ref, RSET_GPR);
+	  emit_spstore(as, ir, r, ofs + ((LJ_BE && !irt_is64(ir->t)) ? 4 : 0));
+	  ofs += 8;
+	}
+      }
+    }
+  }
+}
+
+/* Setup result reg/sp for call. Evict scratch regs. */
+static void asm_setupresult(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  RegSet drop = RSET_SCRATCH;
+  int hiop = ((ir+1)->o == IR_HIOP && !irt_isnil((ir+1)->t));
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r); /* Dest reg handled below. */
+  if (hiop && ra_hasreg((ir+1)->r))
+    rset_clear(drop, (ir+1)->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop); /* Evictions must be performed first. */
+  if (ra_used(ir)) {
+    lj_assertA(!irt_ispri(ir->t), "PRI dest");
+    if (irt_isfp(ir->t)) {
+      if (ci->flags & CCI_CASTU64) {
+	Reg dest = ra_dest(as, ir, RSET_FPR) & 31;
+	emit_dn(as, irt_isnum(ir->t) ? A64I_FMOV_D_R : A64I_FMOV_S_R,
+		dest, RID_RET);
+      } else {
+	ra_destreg(as, ir, RID_FPRET);
+      }
+    } else if (hiop) {
+      ra_destpair(as, ir);
+    } else {
+      ra_destreg(as, ir, RID_RET);
+    }
+  }
+  UNUSED(ci);
+}
+
+static void asm_callx(ASMState *as, IRIns *ir)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  CCallInfo ci;
+  IRRef func;
+  IRIns *irf;
+  ci.flags = asm_callx_flags(as, ir);
+  asm_collectargs(as, ir, &ci, args);
+  asm_setupresult(as, ir, &ci);
+  func = ir->op2; irf = IR(func);
+  if (irf->o == IR_CARG) { func = irf->op1; irf = IR(func); }
+  if (irref_isk(func)) {  /* Call to constant address. */
+    ci.func = (ASMFunction)(ir_k64(irf)->u64);
+  } else {  /* Need a non-argument register for indirect calls. */
+    Reg freg = ra_alloc1(as, func, RSET_RANGE(RID_X8, RID_MAX_GPR)-RSET_FIXED);
+    emit_n(as, A64I_BLR, freg);
+    ci.func = (ASMFunction)(void *)0;
+  }
+  asm_gencall(as, &ci, args);
+}
+
+/* -- Returns ------------------------------------------------------------- */
+
+/* Return to lower frame. Guard that it goes to the right spot. */
+static void asm_retf(ASMState *as, IRIns *ir)
+{
+  Reg base = ra_alloc1(as, REF_BASE, RSET_GPR);
+  void *pc = ir_kptr(IR(ir->op2));
+  int32_t delta = 1+LJ_FR2+bc_a(*((const BCIns *)pc - 1));
+  as->topslot -= (BCReg)delta;
+  if ((int32_t)as->topslot < 0) as->topslot = 0;
+  irt_setmark(IR(REF_BASE)->t);  /* Children must not coalesce with BASE reg. */
+  /* Need to force a spill on REF_BASE now to update the stack slot. */
+  emit_lso(as, A64I_STRx, base, RID_SP, ra_spill(as, IR(REF_BASE)));
+  emit_setgl(as, base, jit_base);
+  emit_addptr(as, base, -8*delta);
+  asm_guardcc(as, CC_NE);
+  emit_nm(as, A64I_CMPx, RID_TMP,
+	  ra_allock(as, i64ptr(pc), rset_exclude(RSET_GPR, base)));
+  emit_lso(as, A64I_LDRx, RID_TMP, base, -8);
+}
+
+/* -- Buffer operations --------------------------------------------------- */
+
+#if LJ_HASBUFFER
+static void asm_bufhdr_write(ASMState *as, Reg sb)
+{
+  Reg tmp = ra_scratch(as, rset_exclude(RSET_GPR, sb));
+  IRIns irgc;
+  irgc.ot = IRT(0, IRT_PGC);  /* GC type. */
+  emit_storeofs(as, &irgc, RID_TMP, sb, offsetof(SBuf, L));
+  emit_dn(as, A64I_BFMx | A64F_IMMS(lj_fls(SBUF_MASK_FLAG)) | A64F_IMMR(0), RID_TMP, tmp);
+  emit_getgl(as, RID_TMP, cur_L);
+  emit_loadofs(as, &irgc, tmp, sb, offsetof(SBuf, L));
+}
+#endif
+
+/* -- Type conversions ---------------------------------------------------- */
+
+static void asm_tointg(ASMState *as, IRIns *ir, Reg left)
+{
+  Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, left));
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  asm_guardcc(as, CC_NE);
+  emit_nm(as, A64I_FCMPd, (tmp & 31), (left & 31));
+  emit_dn(as, A64I_FCVT_F64_S32, (tmp & 31), dest);
+  emit_dn(as, A64I_FCVT_S32_F64, dest, (left & 31));
+}
+
+static void asm_tobit(ASMState *as, IRIns *ir)
+{
+  RegSet allow = RSET_FPR;
+  Reg left = ra_alloc1(as, ir->op1, allow);
+  Reg right = ra_alloc1(as, ir->op2, rset_clear(allow, left));
+  Reg tmp = ra_scratch(as, rset_clear(allow, right));
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  emit_dn(as, A64I_FMOV_R_S, dest, (tmp & 31));
+  emit_dnm(as, A64I_FADDd, (tmp & 31), (left & 31), (right & 31));
+}
+
+static void asm_conv(ASMState *as, IRIns *ir)
+{
+  IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+  int st64 = (st == IRT_I64 || st == IRT_U64 || st == IRT_P64);
+  int stfp = (st == IRT_NUM || st == IRT_FLOAT);
+  IRRef lref = ir->op1;
+  lj_assertA(irt_type(ir->t) != st, "inconsistent types for CONV");
+  if (irt_isfp(ir->t)) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    if (stfp) {  /* FP to FP conversion. */
+      emit_dn(as, st == IRT_NUM ? A64I_FCVT_F32_F64 : A64I_FCVT_F64_F32,
+	      (dest & 31), (ra_alloc1(as, lref, RSET_FPR) & 31));
+    } else {  /* Integer to FP conversion. */
+      Reg left = ra_alloc1(as, lref, RSET_GPR);
+      A64Ins ai = irt_isfloat(ir->t) ?
+	(((IRT_IS64 >> st) & 1) ?
+	 (st == IRT_I64 ? A64I_FCVT_F32_S64 : A64I_FCVT_F32_U64) :
+	 (st == IRT_INT ? A64I_FCVT_F32_S32 : A64I_FCVT_F32_U32)) :
+	(((IRT_IS64 >> st) & 1) ?
+	 (st == IRT_I64 ? A64I_FCVT_F64_S64 : A64I_FCVT_F64_U64) :
+	 (st == IRT_INT ? A64I_FCVT_F64_S32 : A64I_FCVT_F64_U32));
+      emit_dn(as, ai, (dest & 31), left);
+    }
+  } else if (stfp) {  /* FP to integer conversion. */
+    if (irt_isguard(ir->t)) {
+      /* Checked conversions are only supported from number to int. */
+      lj_assertA(irt_isint(ir->t) && st == IRT_NUM,
+		 "bad type for checked CONV");
+      asm_tointg(as, ir, ra_alloc1(as, lref, RSET_FPR));
+    } else {
+      Reg left = ra_alloc1(as, lref, RSET_FPR);
+      Reg dest = ra_dest(as, ir, RSET_GPR);
+      A64Ins ai = irt_is64(ir->t) ?
+	(st == IRT_NUM ?
+	 (irt_isi64(ir->t) ? A64I_FCVT_S64_F64 : A64I_FCVT_U64_F64) :
+	 (irt_isi64(ir->t) ? A64I_FCVT_S64_F32 : A64I_FCVT_U64_F32)) :
+	(st == IRT_NUM ?
+	 (irt_isint(ir->t) ? A64I_FCVT_S32_F64 : A64I_FCVT_U32_F64) :
+	 (irt_isint(ir->t) ? A64I_FCVT_S32_F32 : A64I_FCVT_U32_F32));
+      emit_dn(as, ai, dest, (left & 31));
+    }
+  } else if (st >= IRT_I8 && st <= IRT_U16) { /* Extend to 32 bit integer. */
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg left = ra_alloc1(as, lref, RSET_GPR);
+    A64Ins ai = st == IRT_I8 ? A64I_SXTBw :
+		st == IRT_U8 ? A64I_UXTBw :
+		st == IRT_I16 ? A64I_SXTHw : A64I_UXTHw;
+    lj_assertA(irt_isint(ir->t) || irt_isu32(ir->t), "bad type for CONV EXT");
+    emit_dn(as, ai, dest, left);
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    if (irt_is64(ir->t)) {
+      if (st64 || !(ir->op2 & IRCONV_SEXT)) {
+	/* 64/64 bit no-op (cast) or 32 to 64 bit zero extension. */
+	ra_leftov(as, dest, lref);  /* Do nothing, but may need to move regs. */
+      } else {  /* 32 to 64 bit sign extension. */
+	Reg left = ra_alloc1(as, lref, RSET_GPR);
+	emit_dn(as, A64I_SXTW, dest, left);
+      }
+    } else {
+      if (st64 && !(ir->op2 & IRCONV_NONE)) {
+	/* This is either a 32 bit reg/reg mov which zeroes the hiword
+	** or a load of the loword from a 64 bit address.
+	*/
+	Reg left = ra_alloc1(as, lref, RSET_GPR);
+	emit_dm(as, A64I_MOVw, dest, left);
+      } else {  /* 32/32 bit no-op (cast). */
+	ra_leftov(as, dest, lref);  /* Do nothing, but may need to move regs. */
+      }
+    }
+  }
+}
+
+static void asm_strto(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_strscan_num];
+  IRRef args[2];
+  Reg dest = 0, tmp;
+  int destused = ra_used(ir);
+  int32_t ofs = 0;
+  ra_evictset(as, RSET_SCRATCH);
+  if (destused) {
+    if (ra_hasspill(ir->s)) {
+      ofs = sps_scale(ir->s);
+      destused = 0;
+      if (ra_hasreg(ir->r)) {
+	ra_free(as, ir->r);
+	ra_modified(as, ir->r);
+	emit_spload(as, ir, ir->r, ofs);
+      }
+    } else {
+      dest = ra_dest(as, ir, RSET_FPR);
+    }
+  }
+  if (destused)
+    emit_lso(as, A64I_LDRd, (dest & 31), RID_SP, 0);
+  asm_guardcnb(as, A64I_CBZ, RID_RET);
+  args[0] = ir->op1; /* GCstr *str */
+  args[1] = ASMREF_TMP1; /* TValue *n  */
+  asm_gencall(as, ci, args);
+  tmp = ra_releasetmp(as, ASMREF_TMP1);
+  emit_opk(as, A64I_ADDx, tmp, RID_SP, ofs, RSET_GPR);
+}
+
+/* -- Memory references --------------------------------------------------- */
+
+/* Store tagged value for ref at base+ofs. */
+static void asm_tvstore64(ASMState *as, Reg base, int32_t ofs, IRRef ref)
+{
+  RegSet allow = rset_exclude(RSET_GPR, base);
+  IRIns *ir = IR(ref);
+  lj_assertA(irt_ispri(ir->t) || irt_isaddr(ir->t) || irt_isinteger(ir->t),
+	     "store of IR type %d", irt_type(ir->t));
+  if (irref_isk(ref)) {
+    TValue k;
+    lj_ir_kvalue(as->J->L, &k, ir);
+    emit_lso(as, A64I_STRx, ra_allock(as, k.u64, allow), base, ofs);
+  } else {
+    Reg src = ra_alloc1(as, ref, allow);
+    rset_clear(allow, src);
+    if (irt_isinteger(ir->t)) {
+      Reg type = ra_allock(as, (int64_t)irt_toitype(ir->t) << 47, allow);
+      emit_lso(as, A64I_STRx, RID_TMP, base, ofs);
+      emit_dnm(as, A64I_ADDx | A64F_EX(A64EX_UXTW), RID_TMP, type, src);
+    } else {
+      Reg type = ra_allock(as, (int32_t)irt_toitype(ir->t), allow);
+      emit_lso(as, A64I_STRx, RID_TMP, base, ofs);
+      emit_dnm(as, A64I_ADDx | A64F_SH(A64SH_LSL, 47), RID_TMP, src, type);
+    }
+  }
+}
+
+/* Get pointer to TValue. */
+static void asm_tvptr(ASMState *as, Reg dest, IRRef ref, MSize mode)
+{
+  if ((mode & IRTMPREF_IN1)) {
+    IRIns *ir = IR(ref);
+    if (irt_isnum(ir->t)) {
+      if (irref_isk(ref) && !(mode & IRTMPREF_OUT1)) {
+	/* Use the number constant itself as a TValue. */
+	ra_allockreg(as, i64ptr(ir_knum(ir)), dest);
+	return;
+      }
+      emit_lso(as, A64I_STRd, (ra_alloc1(as, ref, RSET_FPR) & 31), dest, 0);
+    } else {
+      asm_tvstore64(as, dest, 0, ref);
+    }
+  }
+  /* g->tmptv holds the TValue(s). */
+  emit_dn(as, A64I_ADDx^emit_isk12(glofs(as, &J2G(as->J)->tmptv)), dest, RID_GL);
+}
+
+static void asm_aref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg idx, base;
+  if (irref_isk(ir->op2)) {
+    IRRef tab = IR(ir->op1)->op1;
+    int32_t ofs = asm_fuseabase(as, tab);
+    IRRef refa = ofs ? tab : ir->op1;
+    uint32_t k = emit_isk12(ofs + 8*IR(ir->op2)->i);
+    if (k) {
+      base = ra_alloc1(as, refa, RSET_GPR);
+      emit_dn(as, A64I_ADDx^k, dest, base);
+      return;
+    }
+  }
+  base = ra_alloc1(as, ir->op1, RSET_GPR);
+  idx = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, base));
+  emit_dnm(as, A64I_ADDx | A64F_EXSH(A64EX_UXTW, 3), dest, base, idx);
+}
+
+/* Inlined hash lookup. Specialized for key type and for const keys.
+** The equivalent C code is:
+**   Node *n = hashkey(t, key);
+**   do {
+**     if (lj_obj_equal(&n->key, key)) return &n->val;
+**   } while ((n = nextnode(n)));
+**   return niltv(L);
+*/
+static void asm_href(ASMState *as, IRIns *ir, IROp merge)
+{
+  RegSet allow = RSET_GPR;
+  int destused = ra_used(ir);
+  Reg dest = ra_dest(as, ir, allow);
+  Reg tab = ra_alloc1(as, ir->op1, rset_clear(allow, dest));
+  Reg key = 0, tmp = RID_TMP;
+  Reg ftmp = RID_NONE, type = RID_NONE, scr = RID_NONE, tisnum = RID_NONE;
+  IRRef refkey = ir->op2;
+  IRIns *irkey = IR(refkey);
+  int isk = irref_isk(ir->op2);
+  IRType1 kt = irkey->t;
+  uint32_t k = 0;
+  uint32_t khash;
+  MCLabel l_end, l_loop, l_next;
+  rset_clear(allow, tab);
+
+  if (!isk) {
+    key = ra_alloc1(as, ir->op2, irt_isnum(kt) ? RSET_FPR : allow);
+    rset_clear(allow, key);
+    if (!irt_isstr(kt)) {
+      tmp = ra_scratch(as, allow);
+      rset_clear(allow, tmp);
+    }
+  } else if (irt_isnum(kt)) {
+    int64_t val = (int64_t)ir_knum(irkey)->u64;
+    if (!(k = emit_isk12(val))) {
+      key = ra_allock(as, val, allow);
+      rset_clear(allow, key);
+    }
+  } else if (!irt_ispri(kt)) {
+    if (!(k = emit_isk12(irkey->i))) {
+      key = ra_alloc1(as, refkey, allow);
+      rset_clear(allow, key);
+    }
+  }
+
+  /* Allocate constants early. */
+  if (irt_isnum(kt)) {
+    if (!isk) {
+      tisnum = ra_allock(as, LJ_TISNUM << 15, allow);
+      ftmp = ra_scratch(as, rset_exclude(RSET_FPR, key));
+      rset_clear(allow, tisnum);
+    }
+  } else if (irt_isaddr(kt)) {
+    if (isk) {
+      int64_t kk = ((int64_t)irt_toitype(kt) << 47) | irkey[1].tv.u64;
+      scr = ra_allock(as, kk, allow);
+    } else {
+      scr = ra_scratch(as, allow);
+    }
+    rset_clear(allow, scr);
+  } else {
+    lj_assertA(irt_ispri(kt) && !irt_isnil(kt), "bad HREF key type");
+    type = ra_allock(as, ~((int64_t)~irt_toitype(kt) << 47), allow);
+    scr = ra_scratch(as, rset_clear(allow, type));
+    rset_clear(allow, scr);
+  }
+
+  /* Key not found in chain: jump to exit (if merged) or load niltv. */
+  l_end = emit_label(as);
+  as->invmcp = NULL;
+  if (merge == IR_NE)
+    asm_guardcc(as, CC_AL);
+  else if (destused)
+    emit_loada(as, dest, niltvg(J2G(as->J)));
+
+  /* Follow hash chain until the end. */
+  l_loop = --as->mcp;
+  emit_n(as, A64I_CMPx^A64I_K12^0, dest);
+  emit_lso(as, A64I_LDRx, dest, dest, offsetof(Node, next));
+  l_next = emit_label(as);
+
+  /* Type and value comparison. */
+  if (merge == IR_EQ)
+    asm_guardcc(as, CC_EQ);
+  else
+    emit_cond_branch(as, CC_EQ, l_end);
+
+  if (irt_isnum(kt)) {
+    if (isk) {
+      /* Assumes -0.0 is already canonicalized to +0.0. */
+      if (k)
+	emit_n(as, A64I_CMPx^k, tmp);
+      else
+	emit_nm(as, A64I_CMPx, key, tmp);
+      emit_lso(as, A64I_LDRx, tmp, dest, offsetof(Node, key.u64));
+    } else {
+      emit_nm(as, A64I_FCMPd, key, ftmp);
+      emit_dn(as, A64I_FMOV_D_R, (ftmp & 31), (tmp & 31));
+      emit_cond_branch(as, CC_LO, l_next);
+      emit_nm(as, A64I_CMPx | A64F_SH(A64SH_LSR, 32), tisnum, tmp);
+      emit_lso(as, A64I_LDRx, tmp, dest, offsetof(Node, key.n));
+    }
+  } else if (irt_isaddr(kt)) {
+    if (isk) {
+      emit_nm(as, A64I_CMPx, scr, tmp);
+      emit_lso(as, A64I_LDRx, tmp, dest, offsetof(Node, key.u64));
+    } else {
+      emit_nm(as, A64I_CMPx, tmp, scr);
+      emit_lso(as, A64I_LDRx, scr, dest, offsetof(Node, key.u64));
+    }
+  } else {
+    emit_nm(as, A64I_CMPx, scr, type);
+    emit_lso(as, A64I_LDRx, scr, dest, offsetof(Node, key));
+  }
+
+  *l_loop = A64I_BCC | A64F_S19(as->mcp - l_loop) | CC_NE;
+  if (!isk && irt_isaddr(kt)) {
+    type = ra_allock(as, (int32_t)irt_toitype(kt), allow);
+    emit_dnm(as, A64I_ADDx | A64F_SH(A64SH_LSL, 47), tmp, key, type);
+    rset_clear(allow, type);
+  }
+  /* Load main position relative to tab->node into dest. */
+  khash = isk ? ir_khash(as, irkey) : 1;
+  if (khash == 0) {
+    emit_lso(as, A64I_LDRx, dest, tab, offsetof(GCtab, node));
+  } else {
+    emit_dnm(as, A64I_ADDx | A64F_SH(A64SH_LSL, 3), dest, tmp, dest);
+    emit_dnm(as, A64I_ADDx | A64F_SH(A64SH_LSL, 1), dest, dest, dest);
+    emit_lso(as, A64I_LDRx, tmp, tab, offsetof(GCtab, node));
+    if (isk) {
+      Reg tmphash = ra_allock(as, khash, allow);
+      emit_dnm(as, A64I_ANDw, dest, dest, tmphash);
+      emit_lso(as, A64I_LDRw, dest, tab, offsetof(GCtab, hmask));
+    } else if (irt_isstr(kt)) {
+      /* Fetch of str->sid is cheaper than ra_allock. */
+      emit_dnm(as, A64I_ANDw, dest, dest, tmp);
+      emit_lso(as, A64I_LDRw, tmp, key, offsetof(GCstr, sid));
+      emit_lso(as, A64I_LDRw, dest, tab, offsetof(GCtab, hmask));
+    } else {  /* Must match with hash*() in lj_tab.c. */
+      emit_dnm(as, A64I_ANDw, dest, dest, tmp);
+      emit_lso(as, A64I_LDRw, tmp, tab, offsetof(GCtab, hmask));
+      emit_dnm(as, A64I_SUBw, dest, dest, tmp);
+      emit_dnm(as, A64I_EXTRw | (A64F_IMMS(32-HASH_ROT3)), tmp, tmp, tmp);
+      emit_dnm(as, A64I_EORw, dest, dest, tmp);
+      emit_dnm(as, A64I_EXTRw | (A64F_IMMS(32-HASH_ROT2)), dest, dest, dest);
+      emit_dnm(as, A64I_SUBw, tmp, tmp, dest);
+      emit_dnm(as, A64I_EXTRw | (A64F_IMMS(32-HASH_ROT1)), dest, dest, dest);
+      emit_dnm(as, A64I_EORw, tmp, tmp, dest);
+      if (irt_isnum(kt)) {
+	emit_dnm(as, A64I_ADDw, dest, dest, dest);
+	emit_dn(as, A64I_LSRx | A64F_IMMR(32)|A64F_IMMS(32), dest, dest);
+	emit_dm(as, A64I_MOVw, tmp, dest);
+	emit_dn(as, A64I_FMOV_R_D, dest, (key & 31));
+      } else {
+	checkmclim(as);
+	emit_dm(as, A64I_MOVw, tmp, key);
+	emit_dnm(as, A64I_EORw, dest, dest,
+		 ra_allock(as, irt_toitype(kt) << 15, allow));
+	emit_dn(as, A64I_LSRx | A64F_IMMR(32)|A64F_IMMS(32), dest, dest);
+	emit_dm(as, A64I_MOVx, dest, key);
+      }
+    }
+  }
+}
+
+static void asm_hrefk(ASMState *as, IRIns *ir)
+{
+  IRIns *kslot = IR(ir->op2);
+  IRIns *irkey = IR(kslot->op1);
+  int32_t ofs = (int32_t)(kslot->op2 * sizeof(Node));
+  int32_t kofs = ofs + (int32_t)offsetof(Node, key);
+  int bigofs = !emit_checkofs(A64I_LDRx, ofs);
+  Reg dest = (ra_used(ir) || bigofs) ? ra_dest(as, ir, RSET_GPR) : RID_NONE;
+  Reg node = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg key, idx = node;
+  RegSet allow = rset_exclude(RSET_GPR, node);
+  uint64_t k;
+  lj_assertA(ofs % sizeof(Node) == 0, "unaligned HREFK slot");
+  if (bigofs) {
+    idx = dest;
+    rset_clear(allow, dest);
+    kofs = (int32_t)offsetof(Node, key);
+  } else if (ra_hasreg(dest)) {
+    emit_opk(as, A64I_ADDx, dest, node, ofs, allow);
+  }
+  asm_guardcc(as, CC_NE);
+  if (irt_ispri(irkey->t)) {
+    k = ~((int64_t)~irt_toitype(irkey->t) << 47);
+  } else if (irt_isnum(irkey->t)) {
+    k = ir_knum(irkey)->u64;
+  } else {
+    k = ((uint64_t)irt_toitype(irkey->t) << 47) | (uint64_t)ir_kgc(irkey);
+  }
+  key = ra_scratch(as, allow);
+  emit_nm(as, A64I_CMPx, key, ra_allock(as, k, rset_exclude(allow, key)));
+  emit_lso(as, A64I_LDRx, key, idx, kofs);
+  if (bigofs)
+    emit_opk(as, A64I_ADDx, dest, node, ofs, RSET_GPR);
+}
+
+static void asm_uref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  if (irref_isk(ir->op1)) {
+    GCfunc *fn = ir_kfunc(IR(ir->op1));
+    MRef *v = &gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.v;
+    emit_lsptr(as, A64I_LDRx, dest, v);
+  } else {
+    Reg uv = ra_scratch(as, RSET_GPR);
+    Reg func = ra_alloc1(as, ir->op1, RSET_GPR);
+    if (ir->o == IR_UREFC) {
+      asm_guardcc(as, CC_NE);
+      emit_n(as, (A64I_CMPx^A64I_K12) | A64F_U12(1), RID_TMP);
+      emit_opk(as, A64I_ADDx, dest, uv,
+	       (int32_t)offsetof(GCupval, tv), RSET_GPR);
+      emit_lso(as, A64I_LDRB, RID_TMP, uv, (int32_t)offsetof(GCupval, closed));
+    } else {
+      emit_lso(as, A64I_LDRx, dest, uv, (int32_t)offsetof(GCupval, v));
+    }
+    emit_lso(as, A64I_LDRx, uv, func,
+	     (int32_t)offsetof(GCfuncL, uvptr) + 8*(int32_t)(ir->op2 >> 8));
+  }
+}
+
+static void asm_fref(ASMState *as, IRIns *ir)
+{
+  UNUSED(as); UNUSED(ir);
+  lj_assertA(!ra_used(ir), "unfused FREF");
+}
+
+static void asm_strref(ASMState *as, IRIns *ir)
+{
+  RegSet allow = RSET_GPR;
+  Reg dest = ra_dest(as, ir, allow);
+  Reg base = ra_alloc1(as, ir->op1, allow);
+  IRIns *irr = IR(ir->op2);
+  int32_t ofs = sizeof(GCstr);
+  uint32_t m;
+  rset_clear(allow, base);
+  if (irref_isk(ir->op2) && (m = emit_isk12(ofs + irr->i))) {
+    emit_dn(as, A64I_ADDx^m, dest, base);
+  } else {
+    emit_dn(as, (A64I_ADDx^A64I_K12) | A64F_U12(ofs), dest, dest);
+    emit_dnm(as, A64I_ADDx, dest, base, ra_alloc1(as, ir->op2, allow));
+  }
+}
+
+/* -- Loads and stores ---------------------------------------------------- */
+
+static A64Ins asm_fxloadins(IRIns *ir)
+{
+  switch (irt_type(ir->t)) {
+  case IRT_I8: return A64I_LDRB ^ A64I_LS_S;
+  case IRT_U8: return A64I_LDRB;
+  case IRT_I16: return A64I_LDRH ^ A64I_LS_S;
+  case IRT_U16: return A64I_LDRH;
+  case IRT_NUM: return A64I_LDRd;
+  case IRT_FLOAT: return A64I_LDRs;
+  default: return irt_is64(ir->t) ? A64I_LDRx : A64I_LDRw;
+  }
+}
+
+static A64Ins asm_fxstoreins(IRIns *ir)
+{
+  switch (irt_type(ir->t)) {
+  case IRT_I8: case IRT_U8: return A64I_STRB;
+  case IRT_I16: case IRT_U16: return A64I_STRH;
+  case IRT_NUM: return A64I_STRd;
+  case IRT_FLOAT: return A64I_STRs;
+  default: return irt_is64(ir->t) ? A64I_STRx : A64I_STRw;
+  }
+}
+
+static void asm_fload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg idx;
+  A64Ins ai = asm_fxloadins(ir);
+  int32_t ofs;
+  if (ir->op1 == REF_NIL) {  /* FLOAD from GG_State with offset. */
+    idx = RID_GL;
+    ofs = (ir->op2 << 2) - GG_OFS(g);
+  } else {
+    idx = ra_alloc1(as, ir->op1, RSET_GPR);
+    if (ir->op2 == IRFL_TAB_ARRAY) {
+      ofs = asm_fuseabase(as, ir->op1);
+      if (ofs) {  /* Turn the t->array load into an add for colocated arrays. */
+	emit_dn(as, (A64I_ADDx^A64I_K12) | A64F_U12(ofs), dest, idx);
+	return;
+      }
+    }
+    ofs = field_ofs[ir->op2];
+  }
+  emit_lso(as, ai, (dest & 31), idx, ofs);
+}
+
+static void asm_fstore(ASMState *as, IRIns *ir)
+{
+  if (ir->r != RID_SINK) {
+    Reg src = ra_alloc1(as, ir->op2, RSET_GPR);
+    IRIns *irf = IR(ir->op1);
+    Reg idx = ra_alloc1(as, irf->op1, rset_exclude(RSET_GPR, src));
+    int32_t ofs = field_ofs[irf->op2];
+    emit_lso(as, asm_fxstoreins(ir), (src & 31), idx, ofs);
+  }
+}
+
+static void asm_xload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR);
+  lj_assertA(!(ir->op2 & IRXLOAD_UNALIGNED), "unaligned XLOAD");
+  asm_fusexref(as, asm_fxloadins(ir), dest, ir->op1, RSET_GPR);
+}
+
+static void asm_xstore(ASMState *as, IRIns *ir)
+{
+  if (ir->r != RID_SINK) {
+    Reg src = ra_alloc1(as, ir->op2, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR);
+    asm_fusexref(as, asm_fxstoreins(ir), src, ir->op1,
+		 rset_exclude(RSET_GPR, src));
+  }
+}
+
+static void asm_ahuvload(ASMState *as, IRIns *ir)
+{
+  Reg idx, tmp, type;
+  int32_t ofs = 0;
+  RegSet gpr = RSET_GPR, allow = irt_isnum(ir->t) ? RSET_FPR : RSET_GPR;
+  lj_assertA(irt_isnum(ir->t) || irt_ispri(ir->t) || irt_isaddr(ir->t) ||
+	     irt_isint(ir->t),
+	     "bad load type %d", irt_type(ir->t));
+  if (ra_used(ir)) {
+    Reg dest = ra_dest(as, ir, allow);
+    tmp = irt_isnum(ir->t) ? ra_scratch(as, rset_clear(gpr, dest)) : dest;
+    if (irt_isaddr(ir->t)) {
+      emit_dn(as, A64I_ANDx^emit_isk13(LJ_GCVMASK, 1), dest, dest);
+    } else if (irt_isnum(ir->t)) {
+      emit_dn(as, A64I_FMOV_D_R, (dest & 31), tmp);
+    } else if (irt_isint(ir->t)) {
+      emit_dm(as, A64I_MOVw, dest, dest);
+    }
+  } else {
+    tmp = ra_scratch(as, gpr);
+  }
+  type = ra_scratch(as, rset_clear(gpr, tmp));
+  idx = asm_fuseahuref(as, ir->op1, &ofs, rset_clear(gpr, type), A64I_LDRx);
+  if (ir->o == IR_VLOAD) ofs += 8 * ir->op2;
+  /* Always do the type check, even if the load result is unused. */
+  asm_guardcc(as, irt_isnum(ir->t) ? CC_LS : CC_NE);
+  if (irt_type(ir->t) >= IRT_NUM) {
+    lj_assertA(irt_isinteger(ir->t) || irt_isnum(ir->t),
+	       "bad load type %d", irt_type(ir->t));
+    emit_nm(as, A64I_CMPx | A64F_SH(A64SH_LSR, 32),
+	    ra_allock(as, LJ_TISNUM << 15, rset_exclude(gpr, idx)), tmp);
+  } else if (irt_isaddr(ir->t)) {
+    emit_n(as, (A64I_CMNx^A64I_K12) | A64F_U12(-irt_toitype(ir->t)), type);
+    emit_dn(as, A64I_ASRx | A64F_IMMR(47), type, tmp);
+  } else if (irt_isnil(ir->t)) {
+    emit_n(as, (A64I_CMNx^A64I_K12) | A64F_U12(1), tmp);
+  } else {
+    emit_nm(as, A64I_CMPx | A64F_SH(A64SH_LSR, 32),
+	    ra_allock(as, (irt_toitype(ir->t) << 15) | 0x7fff, gpr), tmp);
+  }
+  if (ofs & FUSE_REG)
+    emit_dnm(as, (A64I_LDRx^A64I_LS_R)|A64I_LS_UXTWx|A64I_LS_SH, tmp, idx, (ofs & 31));
+  else
+    emit_lso(as, A64I_LDRx, tmp, idx, ofs);
+}
+
+static void asm_ahustore(ASMState *as, IRIns *ir)
+{
+  if (ir->r != RID_SINK) {
+    RegSet allow = RSET_GPR;
+    Reg idx, src = RID_NONE, tmp = RID_TMP, type = RID_NONE;
+    int32_t ofs = 0;
+    if (irt_isnum(ir->t)) {
+      src = ra_alloc1(as, ir->op2, RSET_FPR);
+      idx = asm_fuseahuref(as, ir->op1, &ofs, allow, A64I_STRd);
+      if (ofs & FUSE_REG)
+	emit_dnm(as, (A64I_STRd^A64I_LS_R)|A64I_LS_UXTWx|A64I_LS_SH, (src & 31), idx, (ofs &31));
+      else
+	emit_lso(as, A64I_STRd, (src & 31), idx, ofs);
+    } else {
+      if (!irt_ispri(ir->t)) {
+	src = ra_alloc1(as, ir->op2, allow);
+	rset_clear(allow, src);
+	if (irt_isinteger(ir->t))
+	  type = ra_allock(as, (uint64_t)(int32_t)LJ_TISNUM << 47, allow);
+	else
+	  type = ra_allock(as, irt_toitype(ir->t), allow);
+      } else {
+	tmp = type = ra_allock(as, ~((int64_t)~irt_toitype(ir->t)<<47), allow);
+      }
+      idx = asm_fuseahuref(as, ir->op1, &ofs, rset_exclude(allow, type),
+			   A64I_STRx);
+      if (ofs & FUSE_REG)
+	emit_dnm(as, (A64I_STRx^A64I_LS_R)|A64I_LS_UXTWx|A64I_LS_SH, tmp, idx, (ofs & 31));
+      else
+	emit_lso(as, A64I_STRx, tmp, idx, ofs);
+      if (ra_hasreg(src)) {
+	if (irt_isinteger(ir->t)) {
+	  emit_dnm(as, A64I_ADDx | A64F_EX(A64EX_UXTW), tmp, type, src);
+	} else {
+	  emit_dnm(as, A64I_ADDx | A64F_SH(A64SH_LSL, 47), tmp, src, type);
+	}
+      }
+    }
+  }
+}
+
+static void asm_sload(ASMState *as, IRIns *ir)
+{
+  int32_t ofs = 8*((int32_t)ir->op1-2);
+  IRType1 t = ir->t;
+  Reg dest = RID_NONE, base;
+  RegSet allow = RSET_GPR;
+  lj_assertA(!(ir->op2 & IRSLOAD_PARENT),
+	     "bad parent SLOAD");  /* Handled by asm_head_side(). */
+  lj_assertA(irt_isguard(t) || !(ir->op2 & IRSLOAD_TYPECHECK),
+	     "inconsistent SLOAD variant");
+  if ((ir->op2 & IRSLOAD_CONVERT) && irt_isguard(t) && irt_isint(t)) {
+    dest = ra_scratch(as, RSET_FPR);
+    asm_tointg(as, ir, dest);
+    t.irt = IRT_NUM;  /* Continue with a regular number type check. */
+  } else if (ra_used(ir)) {
+    Reg tmp = RID_NONE;
+    if ((ir->op2 & IRSLOAD_CONVERT))
+      tmp = ra_scratch(as, irt_isint(t) ? RSET_FPR : RSET_GPR);
+    lj_assertA((irt_isnum(t)) || irt_isint(t) || irt_isaddr(t),
+	       "bad SLOAD type %d", irt_type(t));
+    dest = ra_dest(as, ir, irt_isnum(t) ? RSET_FPR : allow);
+    base = ra_alloc1(as, REF_BASE, rset_clear(allow, dest));
+    if (irt_isaddr(t)) {
+      emit_dn(as, A64I_ANDx^emit_isk13(LJ_GCVMASK, 1), dest, dest);
+    } else if ((ir->op2 & IRSLOAD_CONVERT)) {
+      if (irt_isint(t)) {
+	emit_dn(as, A64I_FCVT_S32_F64, dest, (tmp & 31));
+	/* If value is already loaded for type check, move it to FPR. */
+	if ((ir->op2 & IRSLOAD_TYPECHECK))
+	  emit_dn(as, A64I_FMOV_D_R, (tmp & 31), dest);
+	else
+	  dest = tmp;
+	t.irt = IRT_NUM;  /* Check for original type. */
+      } else {
+	emit_dn(as, A64I_FCVT_F64_S32, (dest & 31), tmp);
+	dest = tmp;
+	t.irt = IRT_INT;  /* Check for original type. */
+      }
+    } else if (irt_isint(t) && (ir->op2 & IRSLOAD_TYPECHECK)) {
+      emit_dm(as, A64I_MOVw, dest, dest);
+    }
+    goto dotypecheck;
+  }
+  base = ra_alloc1(as, REF_BASE, allow);
+dotypecheck:
+  rset_clear(allow, base);
+  if ((ir->op2 & IRSLOAD_TYPECHECK)) {
+    Reg tmp;
+    if (ra_hasreg(dest) && rset_test(RSET_GPR, dest)) {
+      tmp = dest;
+    } else {
+      tmp = ra_scratch(as, allow);
+      rset_clear(allow, tmp);
+    }
+    if (ra_hasreg(dest) && irt_isnum(t) && !(ir->op2 & IRSLOAD_CONVERT))
+      emit_dn(as, A64I_FMOV_D_R, (dest & 31), tmp);
+    /* Need type check, even if the load result is unused. */
+    asm_guardcc(as, irt_isnum(t) ? CC_LS : CC_NE);
+    if (irt_type(t) >= IRT_NUM) {
+      lj_assertA(irt_isinteger(t) || irt_isnum(t),
+		 "bad SLOAD type %d", irt_type(t));
+      emit_nm(as, A64I_CMPx | A64F_SH(A64SH_LSR, 32),
+	      ra_allock(as, (ir->op2 & IRSLOAD_KEYINDEX) ? LJ_KEYINDEX : (LJ_TISNUM << 15), allow), tmp);
+    } else if (irt_isnil(t)) {
+      emit_n(as, (A64I_CMNx^A64I_K12) | A64F_U12(1), tmp);
+    } else if (irt_ispri(t)) {
+      emit_nm(as, A64I_CMPx,
+	      ra_allock(as, ~((int64_t)~irt_toitype(t) << 47) , allow), tmp);
+    } else {
+      Reg type = ra_scratch(as, allow);
+      emit_n(as, (A64I_CMNx^A64I_K12) | A64F_U12(-irt_toitype(t)), type);
+      emit_dn(as, A64I_ASRx | A64F_IMMR(47), type, tmp);
+    }
+    emit_lso(as, A64I_LDRx, tmp, base, ofs);
+    return;
+  }
+  if (ra_hasreg(dest)) {
+    emit_lso(as, irt_isnum(t) ? A64I_LDRd :
+	     (irt_isint(t) ? A64I_LDRw : A64I_LDRx), (dest & 31), base,
+	     ofs ^ ((LJ_BE && irt_isint(t) ? 4 : 0)));
+  }
+}
+
+/* -- Allocations --------------------------------------------------------- */
+
+#if LJ_HASFFI
+static void asm_cnew(ASMState *as, IRIns *ir)
+{
+  CTState *cts = ctype_ctsG(J2G(as->J));
+  CTypeID id = (CTypeID)IR(ir->op1)->i;
+  CTSize sz;
+  CTInfo info = lj_ctype_info(cts, id, &sz);
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_mem_newgco];
+  IRRef args[4];
+  RegSet allow = (RSET_GPR & ~RSET_SCRATCH);
+  lj_assertA(sz != CTSIZE_INVALID || (ir->o == IR_CNEW && ir->op2 != REF_NIL),
+	     "bad CNEW/CNEWI operands");
+
+  as->gcsteps++;
+  asm_setupresult(as, ir, ci);  /* GCcdata * */
+  /* Initialize immutable cdata object. */
+  if (ir->o == IR_CNEWI) {
+    int32_t ofs = sizeof(GCcdata);
+    Reg r = ra_alloc1(as, ir->op2, allow);
+    lj_assertA(sz == 4 || sz == 8, "bad CNEWI size %d", sz);
+    emit_lso(as, sz == 8 ? A64I_STRx : A64I_STRw, r, RID_RET, ofs);
+  } else if (ir->op2 != REF_NIL) {  /* Create VLA/VLS/aligned cdata. */
+    ci = &lj_ir_callinfo[IRCALL_lj_cdata_newv];
+    args[0] = ASMREF_L;     /* lua_State *L */
+    args[1] = ir->op1;      /* CTypeID id   */
+    args[2] = ir->op2;      /* CTSize sz    */
+    args[3] = ASMREF_TMP1;  /* CTSize align */
+    asm_gencall(as, ci, args);
+    emit_loadi(as, ra_releasetmp(as, ASMREF_TMP1), (int32_t)ctype_align(info));
+    return;
+  }
+
+  /* Initialize gct and ctypeid. lj_mem_newgco() already sets marked. */
+  {
+    Reg r = (id < 65536) ? RID_X1 : ra_allock(as, id, allow);
+    emit_lso(as, A64I_STRB, RID_TMP, RID_RET, offsetof(GCcdata, gct));
+    emit_lso(as, A64I_STRH, r, RID_RET, offsetof(GCcdata, ctypeid));
+    emit_d(as, A64I_MOVZw | A64F_U16(~LJ_TCDATA), RID_TMP);
+    if (id < 65536) emit_d(as, A64I_MOVZw | A64F_U16(id), RID_X1);
+  }
+  args[0] = ASMREF_L;     /* lua_State *L */
+  args[1] = ASMREF_TMP1;  /* MSize size   */
+  asm_gencall(as, ci, args);
+  ra_allockreg(as, (int32_t)(sz+sizeof(GCcdata)),
+	       ra_releasetmp(as, ASMREF_TMP1));
+}
+#endif
+
+/* -- Write barriers ------------------------------------------------------ */
+
+static void asm_tbar(ASMState *as, IRIns *ir)
+{
+  Reg tab = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg link = ra_scratch(as, rset_exclude(RSET_GPR, tab));
+  Reg mark = RID_TMP;
+  MCLabel l_end = emit_label(as);
+  emit_lso(as, A64I_STRx, link, tab, (int32_t)offsetof(GCtab, gclist));
+  emit_lso(as, A64I_STRB, mark, tab, (int32_t)offsetof(GCtab, marked));
+  emit_setgl(as, tab, gc.grayagain);
+  emit_dn(as, A64I_ANDw^emit_isk13(~LJ_GC_BLACK, 0), mark, mark);
+  emit_getgl(as, link, gc.grayagain);
+  emit_cond_branch(as, CC_EQ, l_end);
+  emit_n(as, A64I_TSTw^emit_isk13(LJ_GC_BLACK, 0), mark);
+  emit_lso(as, A64I_LDRB, mark, tab, (int32_t)offsetof(GCtab, marked));
+}
+
+static void asm_obar(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_barrieruv];
+  IRRef args[2];
+  MCLabel l_end;
+  RegSet allow = RSET_GPR;
+  Reg obj, val, tmp;
+  /* No need for other object barriers (yet). */
+  lj_assertA(IR(ir->op1)->o == IR_UREFC, "bad OBAR type");
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ir->op1;      /* TValue *tv      */
+  asm_gencall(as, ci, args);
+  emit_dm(as, A64I_MOVx, ra_releasetmp(as, ASMREF_TMP1), RID_GL);
+  obj = IR(ir->op1)->r;
+  tmp = ra_scratch(as, rset_exclude(allow, obj));
+  emit_cond_branch(as, CC_EQ, l_end);
+  emit_n(as, A64I_TSTw^emit_isk13(LJ_GC_BLACK, 0), tmp);
+  emit_cond_branch(as, CC_EQ, l_end);
+  emit_n(as, A64I_TSTw^emit_isk13(LJ_GC_WHITES, 0), RID_TMP);
+  val = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, obj));
+  emit_lso(as, A64I_LDRB, tmp, obj,
+     (int32_t)offsetof(GCupval, marked)-(int32_t)offsetof(GCupval, tv));
+  emit_lso(as, A64I_LDRB, RID_TMP, val, (int32_t)offsetof(GChead, marked));
+}
+
+/* -- Arithmetic and logic operations ------------------------------------- */
+
+static void asm_fparith(ASMState *as, IRIns *ir, A64Ins ai)
+{
+  Reg dest = ra_dest(as, ir, RSET_FPR);
+  Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+  right = (left >> 8); left &= 255;
+  emit_dnm(as, ai, (dest & 31), (left & 31), (right & 31));
+}
+
+static void asm_fpunary(ASMState *as, IRIns *ir, A64Ins ai)
+{
+  Reg dest = ra_dest(as, ir, RSET_FPR);
+  Reg left = ra_hintalloc(as, ir->op1, dest, RSET_FPR);
+  emit_dn(as, ai, (dest & 31), (left & 31));
+}
+
+static void asm_fpmath(ASMState *as, IRIns *ir)
+{
+  IRFPMathOp fpm = (IRFPMathOp)ir->op2;
+  if (fpm == IRFPM_SQRT) {
+    asm_fpunary(as, ir, A64I_FSQRTd);
+  } else if (fpm <= IRFPM_TRUNC) {
+    asm_fpunary(as, ir, fpm == IRFPM_FLOOR ? A64I_FRINTMd :
+			fpm == IRFPM_CEIL ? A64I_FRINTPd : A64I_FRINTZd);
+  } else {
+    asm_callid(as, ir, IRCALL_lj_vm_floor + fpm);
+  }
+}
+
+static int asm_swapops(ASMState *as, IRRef lref, IRRef rref)
+{
+  IRIns *ir;
+  if (irref_isk(rref))
+    return 0;  /* Don't swap constants to the left. */
+  if (irref_isk(lref))
+    return 1;  /* But swap constants to the right. */
+  ir = IR(rref);
+  if ((ir->o >= IR_BSHL && ir->o <= IR_BSAR) ||
+      (ir->o == IR_ADD && ir->op1 == ir->op2) ||
+      (ir->o == IR_CONV && ir->op2 == ((IRT_I64<<IRCONV_DSH)|IRT_INT|IRCONV_SEXT)))
+    return 0;  /* Don't swap fusable operands to the left. */
+  ir = IR(lref);
+  if ((ir->o >= IR_BSHL && ir->o <= IR_BSAR) ||
+      (ir->o == IR_ADD && ir->op1 == ir->op2) ||
+      (ir->o == IR_CONV && ir->op2 == ((IRT_I64<<IRCONV_DSH)|IRT_INT|IRCONV_SEXT)))
+    return 1;  /* But swap fusable operands to the right. */
+  return 0;  /* Otherwise don't swap. */
+}
+
+static void asm_intop(ASMState *as, IRIns *ir, A64Ins ai)
+{
+  IRRef lref = ir->op1, rref = ir->op2;
+  Reg left, dest = ra_dest(as, ir, RSET_GPR);
+  uint32_t m;
+  if ((ai & ~A64I_S) != A64I_SUBw && asm_swapops(as, lref, rref)) {
+    IRRef tmp = lref; lref = rref; rref = tmp;
+  }
+  left = ra_hintalloc(as, lref, dest, RSET_GPR);
+  if (irt_is64(ir->t)) ai |= A64I_X;
+  m = asm_fuseopm(as, ai, rref, rset_exclude(RSET_GPR, left));
+  if (irt_isguard(ir->t)) {  /* For IR_ADDOV etc. */
+    asm_guardcc(as, CC_VS);
+    ai |= A64I_S;
+  }
+  emit_dn(as, ai^m, dest, left);
+}
+
+static void asm_intop_s(ASMState *as, IRIns *ir, A64Ins ai)
+{
+  if (as->flagmcp == as->mcp) {  /* Drop cmp r, #0. */
+    as->flagmcp = NULL;
+    as->mcp++;
+    ai |= A64I_S;
+  }
+  asm_intop(as, ir, ai);
+}
+
+static void asm_intneg(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+  emit_dm(as, irt_is64(ir->t) ? A64I_NEGx : A64I_NEGw, dest, left);
+}
+
+/* NYI: use add/shift for MUL(OV) with constants. FOLD only does 2^k. */
+static void asm_intmul(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, rset_exclude(RSET_GPR, dest));
+  Reg right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  if (irt_isguard(ir->t)) {  /* IR_MULOV */
+    asm_guardcc(as, CC_NE);
+    emit_dm(as, A64I_MOVw, dest, dest);  /* Zero-extend. */
+    emit_nm(as, A64I_CMPw | A64F_SH(A64SH_ASR, 31), RID_TMP, dest);
+    emit_dn(as, A64I_ASRx | A64F_IMMR(32), RID_TMP, dest);
+    emit_dnm(as, A64I_SMULL, dest, right, left);
+  } else {
+    emit_dnm(as, irt_is64(ir->t) ? A64I_MULx : A64I_MULw, dest, left, right);
+  }
+}
+
+static void asm_add(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t)) {
+    if (!asm_fusemadd(as, ir, A64I_FMADDd, A64I_FMADDd))
+      asm_fparith(as, ir, A64I_FADDd);
+    return;
+  }
+  asm_intop_s(as, ir, A64I_ADDw);
+}
+
+static void asm_sub(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t)) {
+    if (!asm_fusemadd(as, ir, A64I_FNMSUBd, A64I_FMSUBd))
+      asm_fparith(as, ir, A64I_FSUBd);
+    return;
+  }
+  asm_intop_s(as, ir, A64I_SUBw);
+}
+
+static void asm_mul(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t)) {
+    asm_fparith(as, ir, A64I_FMULd);
+    return;
+  }
+  asm_intmul(as, ir);
+}
+
+#define asm_addov(as, ir)	asm_add(as, ir)
+#define asm_subov(as, ir)	asm_sub(as, ir)
+#define asm_mulov(as, ir)	asm_mul(as, ir)
+
+#define asm_fpdiv(as, ir)	asm_fparith(as, ir, A64I_FDIVd)
+#define asm_abs(as, ir)		asm_fpunary(as, ir, A64I_FABS)
+
+static void asm_neg(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t)) {
+    asm_fpunary(as, ir, A64I_FNEGd);
+    return;
+  }
+  asm_intneg(as, ir);
+}
+
+static void asm_band(ASMState *as, IRIns *ir)
+{
+  A64Ins ai = A64I_ANDw;
+  if (asm_fuseandshift(as, ir))
+    return;
+  if (as->flagmcp == as->mcp) {
+    /* Try to drop cmp r, #0. */
+    as->flagmcp = NULL;
+    as->mcp++;
+    ai = A64I_ANDSw;
+  }
+  asm_intop(as, ir, ai);
+}
+
+static void asm_borbxor(ASMState *as, IRIns *ir, A64Ins ai)
+{
+  IRRef lref = ir->op1, rref = ir->op2;
+  IRIns *irl = IR(lref), *irr = IR(rref);
+  if ((canfuse(as, irl) && irl->o == IR_BNOT && !irref_isk(rref)) ||
+      (canfuse(as, irr) && irr->o == IR_BNOT && !irref_isk(lref))) {
+    Reg left, dest = ra_dest(as, ir, RSET_GPR);
+    uint32_t m;
+    if (irl->o == IR_BNOT) {
+      IRRef tmp = lref; lref = rref; rref = tmp;
+    }
+    left = ra_alloc1(as, lref, RSET_GPR);
+    ai |= A64I_ON;
+    if (irt_is64(ir->t)) ai |= A64I_X;
+    m = asm_fuseopm(as, ai, IR(rref)->op1, rset_exclude(RSET_GPR, left));
+    emit_dn(as, ai^m, dest, left);
+  } else {
+    asm_intop(as, ir, ai);
+  }
+}
+
+static void asm_bor(ASMState *as, IRIns *ir)
+{
+  if (asm_fuseorshift(as, ir))
+    return;
+  asm_borbxor(as, ir, A64I_ORRw);
+}
+
+#define asm_bxor(as, ir)	asm_borbxor(as, ir, A64I_EORw)
+
+static void asm_bnot(ASMState *as, IRIns *ir)
+{
+  A64Ins ai = A64I_MVNw;
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  uint32_t m = asm_fuseopm(as, ai, ir->op1, RSET_GPR);
+  if (irt_is64(ir->t)) ai |= A64I_X;
+  emit_d(as, ai^m, dest);
+}
+
+static void asm_bswap(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+  emit_dn(as, irt_is64(ir->t) ? A64I_REVx : A64I_REVw, dest, left);
+}
+
+static void asm_bitshift(ASMState *as, IRIns *ir, A64Ins ai, A64Shift sh)
+{
+  int32_t shmask = irt_is64(ir->t) ? 63 : 31;
+  if (irref_isk(ir->op2)) {  /* Constant shifts. */
+    Reg left, dest = ra_dest(as, ir, RSET_GPR);
+    int32_t shift = (IR(ir->op2)->i & shmask);
+    IRIns *irl = IR(ir->op1);
+    if (shmask == 63) ai += A64I_UBFMx - A64I_UBFMw;
+
+    /* Fuse BSHL + BSHR/BSAR into UBFM/SBFM aka UBFX/SBFX/UBFIZ/SBFIZ. */
+    if ((sh == A64SH_LSR || sh == A64SH_ASR) && canfuse(as, irl)) {
+      if (irl->o == IR_BSHL && irref_isk(irl->op2)) {
+	int32_t shift2 = (IR(irl->op2)->i & shmask);
+	shift = ((shift - shift2) & shmask);
+	shmask -= shift2;
+	ir = irl;
+      }
+    }
+
+    left = ra_alloc1(as, ir->op1, RSET_GPR);
+    switch (sh) {
+    case A64SH_LSL:
+      emit_dn(as, ai | A64F_IMMS(shmask-shift) |
+		  A64F_IMMR((shmask-shift+1)&shmask), dest, left);
+      break;
+    case A64SH_LSR: case A64SH_ASR:
+      emit_dn(as, ai | A64F_IMMS(shmask) | A64F_IMMR(shift), dest, left);
+      break;
+    case A64SH_ROR:
+      emit_dnm(as, ai | A64F_IMMS(shift), dest, left, left);
+      break;
+    }
+  } else {  /* Variable-length shifts. */
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+    Reg right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+    emit_dnm(as, (shmask == 63 ? A64I_SHRx : A64I_SHRw) | A64F_BSH(sh), dest, left, right);
+  }
+}
+
+#define asm_bshl(as, ir)	asm_bitshift(as, ir, A64I_UBFMw, A64SH_LSL)
+#define asm_bshr(as, ir)	asm_bitshift(as, ir, A64I_UBFMw, A64SH_LSR)
+#define asm_bsar(as, ir)	asm_bitshift(as, ir, A64I_SBFMw, A64SH_ASR)
+#define asm_bror(as, ir)	asm_bitshift(as, ir, A64I_EXTRw, A64SH_ROR)
+#define asm_brol(as, ir)	lj_assertA(0, "unexpected BROL")
+
+static void asm_intmin_max(ASMState *as, IRIns *ir, A64CC cc)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+  Reg right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  emit_dnm(as, A64I_CSELw|A64F_CC(cc), dest, left, right);
+  emit_nm(as, A64I_CMPw, left, right);
+}
+
+static void asm_fpmin_max(ASMState *as, IRIns *ir, A64CC fcc)
+{
+  Reg dest = (ra_dest(as, ir, RSET_FPR) & 31);
+  Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+  right = ((left >> 8) & 31); left &= 31;
+  emit_dnm(as, A64I_FCSELd | A64F_CC(fcc), dest, right, left);
+  emit_nm(as, A64I_FCMPd, left, right);
+}
+
+static void asm_min_max(ASMState *as, IRIns *ir, A64CC cc, A64CC fcc)
+{
+  if (irt_isnum(ir->t))
+    asm_fpmin_max(as, ir, fcc);
+  else
+    asm_intmin_max(as, ir, cc);
+}
+
+#define asm_min(as, ir)		asm_min_max(as, ir, CC_LT, CC_PL)
+#define asm_max(as, ir)		asm_min_max(as, ir, CC_GT, CC_LE)
+
+/* -- Comparisons --------------------------------------------------------- */
+
+/* Map of comparisons to flags. ORDER IR. */
+static const uint8_t asm_compmap[IR_ABC+1] = {
+  /* op  FP swp  int cc   FP cc */
+  /* LT       */ CC_GE + (CC_HS << 4),
+  /* GE    x  */ CC_LT + (CC_HI << 4),
+  /* LE       */ CC_GT + (CC_HI << 4),
+  /* GT    x  */ CC_LE + (CC_HS << 4),
+  /* ULT   x  */ CC_HS + (CC_LS << 4),
+  /* UGE      */ CC_LO + (CC_LO << 4),
+  /* ULE   x  */ CC_HI + (CC_LO << 4),
+  /* UGT      */ CC_LS + (CC_LS << 4),
+  /* EQ       */ CC_NE + (CC_NE << 4),
+  /* NE       */ CC_EQ + (CC_EQ << 4),
+  /* ABC      */ CC_LS + (CC_LS << 4)  /* Same as UGT. */
+};
+
+/* FP comparisons. */
+static void asm_fpcomp(ASMState *as, IRIns *ir)
+{
+  Reg left, right;
+  A64Ins ai;
+  int swp = ((ir->o ^ (ir->o >> 2)) & ~(ir->o >> 3) & 1);
+  if (!swp && irref_isk(ir->op2) && ir_knum(IR(ir->op2))->u64 == 0) {
+    left = (ra_alloc1(as, ir->op1, RSET_FPR) & 31);
+    right = 0;
+    ai = A64I_FCMPZd;
+  } else {
+    left = ra_alloc2(as, ir, RSET_FPR);
+    if (swp) {
+      right = (left & 31); left = ((left >> 8) & 31);
+    } else {
+      right = ((left >> 8) & 31); left &= 31;
+    }
+    ai = A64I_FCMPd;
+  }
+  asm_guardcc(as, (asm_compmap[ir->o] >> 4));
+  emit_nm(as, ai, left, right);
+}
+
+/* Integer comparisons. */
+static void asm_intcomp(ASMState *as, IRIns *ir)
+{
+  A64CC oldcc, cc = (asm_compmap[ir->o] & 15);
+  A64Ins ai = irt_is64(ir->t) ? A64I_CMPx : A64I_CMPw;
+  IRRef lref = ir->op1, rref = ir->op2;
+  Reg left;
+  uint32_t m;
+  int cmpprev0 = 0;
+  lj_assertA(irt_is64(ir->t) || irt_isint(ir->t) ||
+	     irt_isu32(ir->t) || irt_isaddr(ir->t) || irt_isu8(ir->t),
+	     "bad comparison data type %d", irt_type(ir->t));
+  if (asm_swapops(as, lref, rref)) {
+    IRRef tmp = lref; lref = rref; rref = tmp;
+    if (cc >= CC_GE) cc ^= 7;  /* LT <-> GT, LE <-> GE */
+    else if (cc > CC_NE) cc ^= 11;  /* LO <-> HI, LS <-> HS */
+  }
+  oldcc = cc;
+  if (irref_isk(rref) && get_k64val(as, rref) == 0) {
+    IRIns *irl = IR(lref);
+    if (cc == CC_GE) cc = CC_PL;
+    else if (cc == CC_LT) cc = CC_MI;
+    else if (cc > CC_NE) goto nocombine;  /* Other conds don't work with tst. */
+    cmpprev0 = (irl+1 == ir);
+    /* Combine and-cmp-bcc into tbz/tbnz or and-cmp into tst. */
+    if (cmpprev0 && irl->o == IR_BAND && !ra_used(irl)) {
+      IRRef blref = irl->op1, brref = irl->op2;
+      uint32_t m2 = 0;
+      Reg bleft;
+      if (asm_swapops(as, blref, brref)) {
+	Reg tmp = blref; blref = brref; brref = tmp;
+      }
+      if (irref_isk(brref)) {
+	uint64_t k = get_k64val(as, brref);
+	if (k && !(k & (k-1)) && (cc == CC_EQ || cc == CC_NE)) {
+	  asm_guardtnb(as, cc == CC_EQ ? A64I_TBZ : A64I_TBNZ,
+		       ra_alloc1(as, blref, RSET_GPR), emit_ctz64(k));
+	  return;
+	}
+	m2 = emit_isk13(k, irt_is64(irl->t));
+      }
+      bleft = ra_alloc1(as, blref, RSET_GPR);
+      ai = (irt_is64(irl->t) ? A64I_TSTx : A64I_TSTw);
+      if (!m2)
+	m2 = asm_fuseopm(as, ai, brref, rset_exclude(RSET_GPR, bleft));
+      asm_guardcc(as, cc);
+      emit_n(as, ai^m2, bleft);
+      return;
+    }
+    if (cc == CC_EQ || cc == CC_NE) {
+      /* Combine cmp-bcc into cbz/cbnz. */
+      ai = cc == CC_EQ ? A64I_CBZ : A64I_CBNZ;
+      if (irt_is64(ir->t)) ai |= A64I_X;
+      asm_guardcnb(as, ai, ra_alloc1(as, lref, RSET_GPR));
+      return;
+    }
+  }
+nocombine:
+  left = ra_alloc1(as, lref, RSET_GPR);
+  m = asm_fuseopm(as, ai, rref, rset_exclude(RSET_GPR, left));
+  asm_guardcc(as, cc);
+  emit_n(as, ai^m, left);
+  /* Signed comparison with zero and referencing previous ins? */
+  if (cmpprev0 && (oldcc <= CC_NE || oldcc >= CC_GE))
+    as->flagmcp = as->mcp;  /* Allow elimination of the compare. */
+}
+
+static void asm_comp(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t))
+    asm_fpcomp(as, ir);
+  else
+    asm_intcomp(as, ir);
+}
+
+#define asm_equal(as, ir)	asm_comp(as, ir)
+
+/* -- Split register ops -------------------------------------------------- */
+
+/* Hiword op of a split 64/64 bit op. Previous op is the loword op. */
+static void asm_hiop(ASMState *as, IRIns *ir)
+{
+  /* HIOP is marked as a store because it needs its own DCE logic. */
+  int uselo = ra_used(ir-1), usehi = ra_used(ir);  /* Loword/hiword used? */
+  if (LJ_UNLIKELY(!(as->flags & JIT_F_OPT_DCE))) uselo = usehi = 1;
+  if (!usehi) return;  /* Skip unused hiword op for all remaining ops. */
+  switch ((ir-1)->o) {
+  case IR_CALLN:
+  case IR_CALLL:
+  case IR_CALLS:
+  case IR_CALLXS:
+    if (!uselo)
+      ra_allocref(as, ir->op1, RID2RSET(RID_RETLO));  /* Mark lo op as used. */
+    break;
+  default: lj_assertA(0, "bad HIOP for op %d", (ir-1)->o); break;
+  }
+}
+
+/* -- Profiling ----------------------------------------------------------- */
+
+static void asm_prof(ASMState *as, IRIns *ir)
+{
+  uint32_t k = emit_isk13(HOOK_PROFILE, 0);
+  lj_assertA(k != 0, "HOOK_PROFILE does not fit in K13");
+  UNUSED(ir);
+  asm_guardcc(as, CC_NE);
+  emit_n(as, A64I_TSTw^k, RID_TMP);
+  emit_lsptr(as, A64I_LDRB, RID_TMP, (void *)&J2G(as->J)->hookmask);
+}
+
+/* -- Stack handling ------------------------------------------------------ */
+
+/* Check Lua stack size for overflow. Use exit handler as fallback. */
+static void asm_stack_check(ASMState *as, BCReg topslot,
+			    IRIns *irp, RegSet allow, ExitNo exitno)
+{
+  Reg pbase;
+  uint32_t k;
+  if (irp) {
+    if (!ra_hasspill(irp->s)) {
+      pbase = irp->r;
+      lj_assertA(ra_hasreg(pbase), "base reg lost");
+    } else if (allow) {
+      pbase = rset_pickbot(allow);
+    } else {
+      pbase = RID_RET;
+      emit_lso(as, A64I_LDRx, RID_RET, RID_SP, 0);  /* Restore temp register. */
+    }
+  } else {
+    pbase = RID_BASE;
+  }
+  emit_cond_branch(as, CC_LS, asm_exitstub_addr(as, exitno));
+  k = emit_isk12((8*topslot));
+  lj_assertA(k, "slot offset %d does not fit in K12", 8*topslot);
+  emit_n(as, A64I_CMPx^k, RID_TMP);
+  emit_dnm(as, A64I_SUBx, RID_TMP, RID_TMP, pbase);
+  emit_lso(as, A64I_LDRx, RID_TMP, RID_TMP,
+	   (int32_t)offsetof(lua_State, maxstack));
+  if (irp) {  /* Must not spill arbitrary registers in head of side trace. */
+    if (ra_hasspill(irp->s))
+      emit_lso(as, A64I_LDRx, pbase, RID_SP, sps_scale(irp->s));
+    emit_lso(as, A64I_LDRx, RID_TMP, RID_GL, glofs(as, &J2G(as->J)->cur_L));
+    if (ra_hasspill(irp->s) && !allow)
+      emit_lso(as, A64I_STRx, RID_RET, RID_SP, 0);  /* Save temp register. */
+  } else {
+    emit_getgl(as, RID_TMP, cur_L);
+  }
+}
+
+/* Restore Lua stack from on-trace state. */
+static void asm_stack_restore(ASMState *as, SnapShot *snap)
+{
+  SnapEntry *map = &as->T->snapmap[snap->mapofs];
+#ifdef LUA_USE_ASSERT
+  SnapEntry *flinks = &as->T->snapmap[snap_nextofs(as->T, snap)-1-LJ_FR2];
+#endif
+  MSize n, nent = snap->nent;
+  /* Store the value of all modified slots to the Lua stack. */
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    BCReg s = snap_slot(sn);
+    int32_t ofs = 8*((int32_t)s-1-LJ_FR2);
+    IRRef ref = snap_ref(sn);
+    IRIns *ir = IR(ref);
+    if ((sn & SNAP_NORESTORE))
+      continue;
+    if ((sn & SNAP_KEYINDEX)) {
+      RegSet allow = rset_exclude(RSET_GPR, RID_BASE);
+      Reg r = irref_isk(ref) ? ra_allock(as, ir->i, allow) :
+			       ra_alloc1(as, ref, allow);
+      rset_clear(allow, r);
+      emit_lso(as, A64I_STRw, r, RID_BASE, ofs);
+      emit_lso(as, A64I_STRw, ra_allock(as, LJ_KEYINDEX, allow), RID_BASE, ofs+4);
+    } else if (irt_isnum(ir->t)) {
+      Reg src = ra_alloc1(as, ref, RSET_FPR);
+      emit_lso(as, A64I_STRd, (src & 31), RID_BASE, ofs);
+    } else {
+      asm_tvstore64(as, RID_BASE, ofs, ref);
+    }
+    checkmclim(as);
+  }
+  lj_assertA(map + nent == flinks, "inconsistent frames in snapshot");
+}
+
+/* -- GC handling --------------------------------------------------------- */
+
+/* Marker to prevent patching the GC check exit. */
+#define ARM64_NOPATCH_GC_CHECK \
+  (A64I_ORRx|A64F_D(RID_TMP)|A64F_M(RID_TMP)|A64F_N(RID_TMP))
+
+/* Check GC threshold and do one or more GC steps. */
+static void asm_gc_check(ASMState *as)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_step_jit];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg tmp2;
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  /* Exit trace if in GCSatomic or GCSfinalize. Avoids syncing GC objects. */
+  asm_guardcnb(as, A64I_CBNZ, RID_RET); /* Assumes asm_snap_prep() is done. */
+  *--as->mcp = ARM64_NOPATCH_GC_CHECK;
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ASMREF_TMP2;  /* MSize steps     */
+  asm_gencall(as, ci, args);
+  emit_dm(as, A64I_MOVx, ra_releasetmp(as, ASMREF_TMP1), RID_GL);
+  tmp2 = ra_releasetmp(as, ASMREF_TMP2);
+  emit_loadi(as, tmp2, as->gcsteps);
+  /* Jump around GC step if GC total < GC threshold. */
+  emit_cond_branch(as, CC_LS, l_end);
+  emit_nm(as, A64I_CMPx, RID_TMP, tmp2);
+  emit_getgl(as, tmp2, gc.threshold);
+  emit_getgl(as, RID_TMP, gc.total);
+  as->gcsteps = 0;
+  checkmclim(as);
+}
+
+/* -- Loop handling ------------------------------------------------------- */
+
+/* Fixup the loop branch. */
+static void asm_loop_fixup(ASMState *as)
+{
+  MCode *p = as->mctop;
+  MCode *target = as->mcp;
+  if (as->loopinv) {  /* Inverted loop branch? */
+    uint32_t mask = (p[-2] & 0x7e000000) == 0x36000000 ? 0x3fffu : 0x7ffffu;
+    ptrdiff_t delta = target - (p - 2);
+    /* asm_guard* already inverted the bcc/tnb/cnb and patched the final b. */
+    p[-2] |= ((uint32_t)delta & mask) << 5;
+  } else {
+    ptrdiff_t delta = target - (p - 1);
+    p[-1] = A64I_B | A64F_S26(delta);
+  }
+}
+
+/* Fixup the tail of the loop. */
+static void asm_loop_tail_fixup(ASMState *as)
+{
+  UNUSED(as);  /* Nothing to do. */
+}
+
+/* -- Head of trace ------------------------------------------------------- */
+
+/* Reload L register from g->cur_L. */
+static void asm_head_lreg(ASMState *as)
+{
+  IRIns *ir = IR(ASMREF_L);
+  if (ra_used(ir)) {
+    Reg r = ra_dest(as, ir, RSET_GPR);
+    emit_getgl(as, r, cur_L);
+    ra_evictk(as);
+  }
+}
+
+/* Coalesce BASE register for a root trace. */
+static void asm_head_root_base(ASMState *as)
+{
+  IRIns *ir;
+  asm_head_lreg(as);
+  ir = IR(REF_BASE);
+  if (ra_hasreg(ir->r) && (rset_test(as->modset, ir->r) || irt_ismarked(ir->t)))
+    ra_spill(as, ir);
+  ra_destreg(as, ir, RID_BASE);
+}
+
+/* Coalesce BASE register for a side trace. */
+static RegSet asm_head_side_base(ASMState *as, IRIns *irp, RegSet allow)
+{
+  IRIns *ir;
+  asm_head_lreg(as);
+  ir = IR(REF_BASE);
+  if (ra_hasreg(ir->r) && (rset_test(as->modset, ir->r) || irt_ismarked(ir->t)))
+    ra_spill(as, ir);
+  if (ra_hasspill(irp->s)) {
+    rset_clear(allow, ra_dest(as, ir, allow));
+  } else {
+    Reg r = irp->r;
+    lj_assertA(ra_hasreg(r), "base reg lost");
+    rset_clear(allow, r);
+    if (r != ir->r && !rset_test(as->freeset, r))
+      ra_restore(as, regcost_ref(as->cost[r]));
+    ra_destreg(as, ir, r);
+  }
+  return allow;
+}
+
+/* -- Tail of trace ------------------------------------------------------- */
+
+/* Fixup the tail code. */
+static void asm_tail_fixup(ASMState *as, TraceNo lnk)
+{
+  MCode *p = as->mctop;
+  MCode *target;
+  /* Undo the sp adjustment in BC_JLOOP when exiting to the interpreter. */
+  int32_t spadj = as->T->spadjust + (lnk ? 0 : sps_scale(SPS_FIXED));
+  if (spadj == 0) {
+    *--p = A64I_LE(A64I_NOP);
+    as->mctop = p;
+  } else {
+    /* Patch stack adjustment. */
+    uint32_t k = emit_isk12(spadj);
+    lj_assertA(k, "stack adjustment %d does not fit in K12", spadj);
+    p[-2] = (A64I_ADDx^k) | A64F_D(RID_SP) | A64F_N(RID_SP);
+  }
+  /* Patch exit branch. */
+  target = lnk ? traceref(as->J, lnk)->mcode : (MCode *)lj_vm_exit_interp;
+  p[-1] = A64I_B | A64F_S26((target-p)+1);
+}
+
+/* Prepare tail of code. */
+static void asm_tail_prep(ASMState *as)
+{
+  MCode *p = as->mctop - 1;  /* Leave room for exit branch. */
+  if (as->loopref) {
+    as->invmcp = as->mcp = p;
+  } else {
+    as->mcp = p-1;  /* Leave room for stack pointer adjustment. */
+    as->invmcp = NULL;
+  }
+  *p = 0;  /* Prevent load/store merging. */
+}
+
+/* -- Trace setup --------------------------------------------------------- */
+
+/* Ensure there are enough stack slots for call arguments. */
+static Reg asm_setup_call_slots(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  uint32_t i, nargs = CCI_XNARGS(ci);
+  int nslots = 0, ngpr = REGARG_NUMGPR, nfpr = REGARG_NUMFPR;
+  asm_collectargs(as, ir, ci, args);
+  for (i = 0; i < nargs; i++) {
+    if (args[i] && irt_isfp(IR(args[i])->t)) {
+      if (nfpr > 0) nfpr--; else nslots += 2;
+    } else {
+      if (ngpr > 0) ngpr--; else nslots += 2;
+    }
+  }
+  if (nslots > as->evenspill)  /* Leave room for args in stack slots. */
+    as->evenspill = nslots;
+  return REGSP_HINT(RID_RET);
+}
+
+static void asm_setup_target(ASMState *as)
+{
+  /* May need extra exit for asm_stack_check on side traces. */
+  asm_exitstub_setup(as, as->T->nsnap + (as->parent ? 1 : 0));
+}
+
+#if LJ_BE
+/* ARM64 instructions are always little-endian. Swap for ARM64BE. */
+static void asm_mcode_fixup(MCode *mcode, MSize size)
+{
+  MCode *pe = (MCode *)((char *)mcode + size);
+  while (mcode < pe) {
+    MCode ins = *mcode;
+    *mcode++ = lj_bswap(ins);
+  }
+}
+#define LJ_TARGET_MCODE_FIXUP	1
+#endif
+
+/* -- Trace patching ------------------------------------------------------ */
+
+/* Patch exit jumps of existing machine code to a new target. */
+void lj_asm_patchexit(jit_State *J, GCtrace *T, ExitNo exitno, MCode *target)
+{
+  MCode *p = T->mcode;
+  MCode *pe = (MCode *)((char *)p + T->szmcode);
+  MCode *cstart = NULL;
+  MCode *mcarea = lj_mcode_patch(J, p, 0);
+  MCode *px = exitstub_trace_addr(T, exitno);
+  int patchlong = 1;
+  /* Note: this assumes a trace exit is only ever patched once. */
+  for (; p < pe; p++) {
+    /* Look for exitstub branch, replace with branch to target. */
+    ptrdiff_t delta = target - p;
+    MCode ins = A64I_LE(*p);
+    if ((ins & 0xff000000u) == 0x54000000u &&
+	((ins ^ ((px-p)<<5)) & 0x00ffffe0u) == 0) {
+      /* Patch bcc, if within range. */
+      if (A64F_S_OK(delta, 19)) {
+	*p = A64I_LE((ins & 0xff00001fu) | A64F_S19(delta));
+	if (!cstart) cstart = p;
+      }
+    } else if ((ins & 0xfc000000u) == 0x14000000u &&
+	       ((ins ^ (px-p)) & 0x03ffffffu) == 0) {
+      /* Patch b. */
+      lj_assertJ(A64F_S_OK(delta, 26), "branch target out of range");
+      *p = A64I_LE((ins & 0xfc000000u) | A64F_S26(delta));
+      if (!cstart) cstart = p;
+    } else if ((ins & 0x7e000000u) == 0x34000000u &&
+	       ((ins ^ ((px-p)<<5)) & 0x00ffffe0u) == 0) {
+      /* Patch cbz/cbnz, if within range. */
+      if (p[-1] == ARM64_NOPATCH_GC_CHECK) {
+	patchlong = 0;
+      } else if (A64F_S_OK(delta, 19)) {
+	*p = A64I_LE((ins & 0xff00001fu) | A64F_S19(delta));
+	if (!cstart) cstart = p;
+      }
+    } else if ((ins & 0x7e000000u) == 0x36000000u &&
+	       ((ins ^ ((px-p)<<5)) & 0x0007ffe0u) == 0) {
+      /* Patch tbz/tbnz, if within range. */
+      if (A64F_S_OK(delta, 14)) {
+	*p = A64I_LE((ins & 0xfff8001fu) | A64F_S14(delta));
+	if (!cstart) cstart = p;
+      }
+    }
+  }
+  /* Always patch long-range branch in exit stub itself. Except, if we can't. */
+  if (patchlong) {
+    ptrdiff_t delta = target - px;
+    lj_assertJ(A64F_S_OK(delta, 26), "branch target out of range");
+    *px = A64I_B | A64F_S26(delta);
+    if (!cstart) cstart = px;
+  }
+  if (cstart) lj_mcode_sync(cstart, px+1);
+  lj_mcode_patch(J, mcarea, 1);
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_asm_mips.h b/libs/luajit-cmake/luajit/src/lj_asm_mips.h
new file mode 100644
index 0000000..1686b40
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_asm_mips.h
@@ -0,0 +1,2808 @@
+/*
+** MIPS IR assembler (SSA IR -> machine code).
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* -- Register allocator extensions --------------------------------------- */
+
+/* Allocate a register with a hint. */
+static Reg ra_hintalloc(ASMState *as, IRRef ref, Reg hint, RegSet allow)
+{
+  Reg r = IR(ref)->r;
+  if (ra_noreg(r)) {
+    if (!ra_hashint(r) && !iscrossref(as, ref))
+      ra_sethint(IR(ref)->r, hint);  /* Propagate register hint. */
+    r = ra_allocref(as, ref, allow);
+  }
+  ra_noweak(as, r);
+  return r;
+}
+
+/* Allocate a register or RID_ZERO. */
+static Reg ra_alloc1z(ASMState *as, IRRef ref, RegSet allow)
+{
+  Reg r = IR(ref)->r;
+  if (ra_noreg(r)) {
+    if (!(allow & RSET_FPR) && irref_isk(ref) && get_kval(as, ref) == 0)
+      return RID_ZERO;
+    r = ra_allocref(as, ref, allow);
+  } else {
+    ra_noweak(as, r);
+  }
+  return r;
+}
+
+/* Allocate two source registers for three-operand instructions. */
+static Reg ra_alloc2(ASMState *as, IRIns *ir, RegSet allow)
+{
+  IRIns *irl = IR(ir->op1), *irr = IR(ir->op2);
+  Reg left = irl->r, right = irr->r;
+  if (ra_hasreg(left)) {
+    ra_noweak(as, left);
+    if (ra_noreg(right))
+      right = ra_alloc1z(as, ir->op2, rset_exclude(allow, left));
+    else
+      ra_noweak(as, right);
+  } else if (ra_hasreg(right)) {
+    ra_noweak(as, right);
+    left = ra_alloc1z(as, ir->op1, rset_exclude(allow, right));
+  } else if (ra_hashint(right)) {
+    right = ra_alloc1z(as, ir->op2, allow);
+    left = ra_alloc1z(as, ir->op1, rset_exclude(allow, right));
+  } else {
+    left = ra_alloc1z(as, ir->op1, allow);
+    right = ra_alloc1z(as, ir->op2, rset_exclude(allow, left));
+  }
+  return left | (right << 8);
+}
+
+/* -- Guard handling ------------------------------------------------------ */
+
+/* Need some spare long-range jump slots, for out-of-range branches. */
+#define MIPS_SPAREJUMP		4
+
+/* Setup spare long-range jump slots per mcarea. */
+static void asm_sparejump_setup(ASMState *as)
+{
+  MCode *mxp = as->mctop;
+  if ((char *)mxp == (char *)as->J->mcarea + as->J->szmcarea) {
+    mxp -= MIPS_SPAREJUMP*2;
+    lj_assertA(MIPSI_NOP == 0, "bad NOP");
+    memset(mxp, 0, MIPS_SPAREJUMP*2*sizeof(MCode));
+    as->mctop = mxp;
+  }
+}
+
+static MCode *asm_sparejump_use(MCode *mcarea, MCode tjump)
+{
+  MCode *mxp = (MCode *)((char *)mcarea + ((MCLink *)mcarea)->size);
+  int slot = MIPS_SPAREJUMP;
+  while (slot--) {
+    mxp -= 2;
+    if (*mxp == tjump) {
+      return mxp;
+    } else if (*mxp == MIPSI_NOP) {
+      *mxp = tjump;
+      return mxp;
+    }
+  }
+  return NULL;
+}
+
+/* Setup exit stub after the end of each trace. */
+static void asm_exitstub_setup(ASMState *as)
+{
+  MCode *mxp = as->mctop;
+  /* sw TMP, 0(sp); j ->vm_exit_handler; li TMP, traceno */
+  *--mxp = MIPSI_LI|MIPSF_T(RID_TMP)|as->T->traceno;
+  *--mxp = MIPSI_J|((((uintptr_t)(void *)lj_vm_exit_handler)>>2)&0x03ffffffu);
+  lj_assertA(((uintptr_t)mxp ^ (uintptr_t)(void *)lj_vm_exit_handler)>>28 == 0,
+	     "branch target out of range");
+  *--mxp = MIPSI_SW|MIPSF_T(RID_TMP)|MIPSF_S(RID_SP)|0;
+  as->mctop = mxp;
+}
+
+/* Keep this in-sync with exitstub_trace_addr(). */
+#define asm_exitstub_addr(as)	((as)->mctop)
+
+/* Emit conditional branch to exit for guard. */
+static void asm_guard(ASMState *as, MIPSIns mi, Reg rs, Reg rt)
+{
+  MCode *target = asm_exitstub_addr(as);
+  MCode *p = as->mcp;
+  if (LJ_UNLIKELY(p == as->invmcp)) {
+    as->invmcp = NULL;
+    as->loopinv = 1;
+    as->mcp = p+1;
+#if !LJ_TARGET_MIPSR6
+    mi = mi ^ ((mi>>28) == 1 ? 0x04000000u : 0x00010000u);  /* Invert cond. */
+#else
+    mi = mi ^ ((mi>>28) == 1 ? 0x04000000u :
+	       (mi>>28) == 4 ? 0x00800000u : 0x00010000u);  /* Invert cond. */
+#endif
+    target = p;  /* Patch target later in asm_loop_fixup. */
+  }
+  emit_ti(as, MIPSI_LI, RID_TMP, as->snapno);
+  emit_branch(as, mi, rs, rt, target);
+}
+
+/* -- Operand fusion ------------------------------------------------------ */
+
+/* Limit linear search to this distance. Avoids O(n^2) behavior. */
+#define CONFLICT_SEARCH_LIM	31
+
+/* Check if there's no conflicting instruction between curins and ref. */
+static int noconflict(ASMState *as, IRRef ref, IROp conflict)
+{
+  IRIns *ir = as->ir;
+  IRRef i = as->curins;
+  if (i > ref + CONFLICT_SEARCH_LIM)
+    return 0;  /* Give up, ref is too far away. */
+  while (--i > ref)
+    if (ir[i].o == conflict)
+      return 0;  /* Conflict found. */
+  return 1;  /* Ok, no conflict. */
+}
+
+/* Fuse the array base of colocated arrays. */
+static int32_t asm_fuseabase(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (ir->o == IR_TNEW && ir->op1 <= LJ_MAX_COLOSIZE &&
+      !neverfuse(as) && noconflict(as, ref, IR_NEWREF))
+    return (int32_t)sizeof(GCtab);
+  return 0;
+}
+
+/* Fuse array/hash/upvalue reference into register+offset operand. */
+static Reg asm_fuseahuref(ASMState *as, IRRef ref, int32_t *ofsp, RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  if (ra_noreg(ir->r)) {
+    if (ir->o == IR_AREF) {
+      if (mayfuse(as, ref)) {
+	if (irref_isk(ir->op2)) {
+	  IRRef tab = IR(ir->op1)->op1;
+	  int32_t ofs = asm_fuseabase(as, tab);
+	  IRRef refa = ofs ? tab : ir->op1;
+	  ofs += 8*IR(ir->op2)->i;
+	  if (checki16(ofs)) {
+	    *ofsp = ofs;
+	    return ra_alloc1(as, refa, allow);
+	  }
+	}
+      }
+    } else if (ir->o == IR_HREFK) {
+      if (mayfuse(as, ref)) {
+	int32_t ofs = (int32_t)(IR(ir->op2)->op2 * sizeof(Node));
+	if (checki16(ofs)) {
+	  *ofsp = ofs;
+	  return ra_alloc1(as, ir->op1, allow);
+	}
+      }
+    } else if (ir->o == IR_UREFC) {
+      if (irref_isk(ir->op1)) {
+	GCfunc *fn = ir_kfunc(IR(ir->op1));
+	intptr_t ofs = (intptr_t)&gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.tv;
+	intptr_t jgl = (intptr_t)J2G(as->J);
+	if ((uintptr_t)(ofs-jgl) < 65536) {
+	  *ofsp = ofs-jgl-32768;
+	  return RID_JGL;
+	} else {
+	  *ofsp = (int16_t)ofs;
+	  return ra_allock(as, ofs-(int16_t)ofs, allow);
+	}
+      }
+    } else if (ir->o == IR_TMPREF) {
+      *ofsp = (int32_t)(offsetof(global_State, tmptv)-32768);
+      return RID_JGL;
+    }
+  }
+  *ofsp = 0;
+  return ra_alloc1(as, ref, allow);
+}
+
+/* Fuse XLOAD/XSTORE reference into load/store operand. */
+static void asm_fusexref(ASMState *as, MIPSIns mi, Reg rt, IRRef ref,
+			 RegSet allow, int32_t ofs)
+{
+  IRIns *ir = IR(ref);
+  Reg base;
+  if (ra_noreg(ir->r) && canfuse(as, ir)) {
+    if (ir->o == IR_ADD) {
+      intptr_t ofs2;
+      if (irref_isk(ir->op2) && (ofs2 = ofs + get_kval(as, ir->op2),
+				 checki16(ofs2))) {
+	ref = ir->op1;
+	ofs = (int32_t)ofs2;
+      }
+    } else if (ir->o == IR_STRREF) {
+      intptr_t ofs2 = 65536;
+      lj_assertA(ofs == 0, "bad usage");
+      ofs = (int32_t)sizeof(GCstr);
+      if (irref_isk(ir->op2)) {
+	ofs2 = ofs + get_kval(as, ir->op2);
+	ref = ir->op1;
+      } else if (irref_isk(ir->op1)) {
+	ofs2 = ofs + get_kval(as, ir->op1);
+	ref = ir->op2;
+      }
+      if (!checki16(ofs2)) {
+	/* NYI: Fuse ADD with constant. */
+	Reg right, left = ra_alloc2(as, ir, allow);
+	right = (left >> 8); left &= 255;
+	emit_hsi(as, mi, rt, RID_TMP, ofs);
+	emit_dst(as, MIPSI_AADDU, RID_TMP, left, right);
+	return;
+      }
+      ofs = ofs2;
+    }
+  }
+  base = ra_alloc1(as, ref, allow);
+  emit_hsi(as, mi, rt, base, ofs);
+}
+
+/* -- Calls --------------------------------------------------------------- */
+
+/* Generate a call to a C function. */
+static void asm_gencall(ASMState *as, const CCallInfo *ci, IRRef *args)
+{
+  uint32_t n, nargs = CCI_XNARGS(ci);
+  int32_t ofs = LJ_32 ? 16 : 0;
+#if LJ_SOFTFP
+  Reg gpr = REGARG_FIRSTGPR;
+#else
+  Reg gpr, fpr = REGARG_FIRSTFPR;
+#endif
+  if ((void *)ci->func)
+    emit_call(as, (void *)ci->func, 1);
+#if !LJ_SOFTFP
+  for (gpr = REGARG_FIRSTGPR; gpr <= REGARG_LASTGPR; gpr++)
+    as->cost[gpr] = REGCOST(~0u, ASMREF_L);
+  gpr = REGARG_FIRSTGPR;
+#endif
+  for (n = 0; n < nargs; n++) {  /* Setup args. */
+    IRRef ref = args[n];
+    if (ref) {
+      IRIns *ir = IR(ref);
+#if !LJ_SOFTFP
+      if (irt_isfp(ir->t) && fpr <= REGARG_LASTFPR &&
+	  !(ci->flags & CCI_VARARG)) {
+	lj_assertA(rset_test(as->freeset, fpr),
+		   "reg %d not free", fpr);  /* Already evicted. */
+	ra_leftov(as, fpr, ref);
+	fpr += LJ_32 ? 2 : 1;
+	gpr += (LJ_32 && irt_isnum(ir->t)) ? 2 : 1;
+      } else
+#endif
+      {
+#if LJ_32 && !LJ_SOFTFP
+	fpr = REGARG_LASTFPR+1;
+#endif
+	if (LJ_32 && irt_isnum(ir->t)) gpr = (gpr+1) & ~1;
+	if (gpr <= REGARG_LASTGPR) {
+	  lj_assertA(rset_test(as->freeset, gpr),
+		     "reg %d not free", gpr);  /* Already evicted. */
+#if !LJ_SOFTFP
+	  if (irt_isfp(ir->t)) {
+	    RegSet of = as->freeset;
+	    Reg r;
+	    /* Workaround to protect argument GPRs from being used for remat. */
+	    as->freeset &= ~RSET_RANGE(REGARG_FIRSTGPR, REGARG_LASTGPR+1);
+	    r = ra_alloc1(as, ref, RSET_FPR);
+	    as->freeset |= (of & RSET_RANGE(REGARG_FIRSTGPR, REGARG_LASTGPR+1));
+	    if (irt_isnum(ir->t)) {
+#if LJ_32
+	      emit_tg(as, MIPSI_MFC1, gpr+(LJ_BE?0:1), r+1);
+	      emit_tg(as, MIPSI_MFC1, gpr+(LJ_BE?1:0), r);
+	      lj_assertA(rset_test(as->freeset, gpr+1),
+			 "reg %d not free", gpr+1);  /* Already evicted. */
+	      gpr += 2;
+#else
+	      emit_tg(as, MIPSI_DMFC1, gpr, r);
+	      gpr++; fpr++;
+#endif
+	    } else if (irt_isfloat(ir->t)) {
+	      emit_tg(as, MIPSI_MFC1, gpr, r);
+	      gpr++;
+#if LJ_64
+	      fpr++;
+#endif
+	    }
+	  } else
+#endif
+	  {
+	    ra_leftov(as, gpr, ref);
+	    gpr++;
+#if LJ_64 && !LJ_SOFTFP
+	    fpr++;
+#endif
+	  }
+	} else {
+	  Reg r = ra_alloc1z(as, ref, !LJ_SOFTFP && irt_isfp(ir->t) ? RSET_FPR : RSET_GPR);
+#if LJ_32
+	  if (irt_isnum(ir->t)) ofs = (ofs + 4) & ~4;
+	  emit_spstore(as, ir, r, ofs);
+	  ofs += irt_isnum(ir->t) ? 8 : 4;
+#else
+	  emit_spstore(as, ir, r, ofs + ((LJ_BE && !irt_isfp(ir->t) && !irt_is64(ir->t)) ? 4 : 0));
+	  ofs += 8;
+#endif
+	}
+      }
+    } else {
+#if !LJ_SOFTFP
+      fpr = REGARG_LASTFPR+1;
+#endif
+      if (gpr <= REGARG_LASTGPR) {
+	gpr++;
+#if LJ_64 && !LJ_SOFTFP
+	fpr++;
+#endif
+      } else {
+	ofs += LJ_32 ? 4 : 8;
+      }
+    }
+    checkmclim(as);
+  }
+}
+
+/* Setup result reg/sp for call. Evict scratch regs. */
+static void asm_setupresult(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  RegSet drop = RSET_SCRATCH;
+  int hiop = ((ir+1)->o == IR_HIOP && !irt_isnil((ir+1)->t));
+#if !LJ_SOFTFP
+  if ((ci->flags & CCI_NOFPRCLOBBER))
+    drop &= ~RSET_FPR;
+#endif
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r);  /* Dest reg handled below. */
+  if (hiop && ra_hasreg((ir+1)->r))
+    rset_clear(drop, (ir+1)->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop);  /* Evictions must be performed first. */
+  if (ra_used(ir)) {
+    lj_assertA(!irt_ispri(ir->t), "PRI dest");
+    if (!LJ_SOFTFP && irt_isfp(ir->t)) {
+      if ((ci->flags & CCI_CASTU64)) {
+	int32_t ofs = sps_scale(ir->s);
+	Reg dest = ir->r;
+	if (ra_hasreg(dest)) {
+	  ra_free(as, dest);
+	  ra_modified(as, dest);
+#if LJ_32
+	  emit_tg(as, MIPSI_MTC1, RID_RETHI, dest+1);
+	  emit_tg(as, MIPSI_MTC1, RID_RETLO, dest);
+#else
+	  emit_tg(as, MIPSI_DMTC1, RID_RET, dest);
+#endif
+	}
+	if (ofs) {
+#if LJ_32
+	  emit_tsi(as, MIPSI_SW, RID_RETLO, RID_SP, ofs+(LJ_BE?4:0));
+	  emit_tsi(as, MIPSI_SW, RID_RETHI, RID_SP, ofs+(LJ_BE?0:4));
+#else
+	  emit_tsi(as, MIPSI_SD, RID_RET, RID_SP, ofs);
+#endif
+	}
+      } else {
+	ra_destreg(as, ir, RID_FPRET);
+      }
+    } else if (hiop) {
+      ra_destpair(as, ir);
+    } else {
+      ra_destreg(as, ir, RID_RET);
+    }
+  }
+}
+
+static void asm_callx(ASMState *as, IRIns *ir)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  CCallInfo ci;
+  IRRef func;
+  IRIns *irf;
+  ci.flags = asm_callx_flags(as, ir);
+  asm_collectargs(as, ir, &ci, args);
+  asm_setupresult(as, ir, &ci);
+  func = ir->op2; irf = IR(func);
+  if (irf->o == IR_CARG) { func = irf->op1; irf = IR(func); }
+  if (irref_isk(func)) {  /* Call to constant address. */
+    ci.func = (ASMFunction)(void *)get_kval(as, func);
+  } else {  /* Need specific register for indirect calls. */
+    Reg r = ra_alloc1(as, func, RID2RSET(RID_CFUNCADDR));
+    MCode *p = as->mcp;
+    if (r == RID_CFUNCADDR)
+      *--p = MIPSI_NOP;
+    else
+      *--p = MIPSI_MOVE | MIPSF_D(RID_CFUNCADDR) | MIPSF_S(r);
+    *--p = MIPSI_JALR | MIPSF_S(r);
+    as->mcp = p;
+    ci.func = (ASMFunction)(void *)0;
+  }
+  asm_gencall(as, &ci, args);
+}
+
+#if !LJ_SOFTFP
+static void asm_callround(ASMState *as, IRIns *ir, IRCallID id)
+{
+  /* The modified regs must match with the *.dasc implementation. */
+  RegSet drop = RID2RSET(RID_R1)|RID2RSET(RID_R12)|RID2RSET(RID_FPRET)|
+		RID2RSET(RID_F2)|RID2RSET(RID_F4)|RID2RSET(REGARG_FIRSTFPR)
+#if LJ_TARGET_MIPSR6
+		|RID2RSET(RID_F21)
+#endif
+		;
+  if (ra_hasreg(ir->r)) rset_clear(drop, ir->r);
+  ra_evictset(as, drop);
+  ra_destreg(as, ir, RID_FPRET);
+  emit_call(as, (void *)lj_ir_callinfo[id].func, 0);
+  ra_leftov(as, REGARG_FIRSTFPR, ir->op1);
+}
+#endif
+
+/* -- Returns ------------------------------------------------------------- */
+
+/* Return to lower frame. Guard that it goes to the right spot. */
+static void asm_retf(ASMState *as, IRIns *ir)
+{
+  Reg base = ra_alloc1(as, REF_BASE, RSET_GPR);
+  void *pc = ir_kptr(IR(ir->op2));
+  int32_t delta = 1+LJ_FR2+bc_a(*((const BCIns *)pc - 1));
+  as->topslot -= (BCReg)delta;
+  if ((int32_t)as->topslot < 0) as->topslot = 0;
+  irt_setmark(IR(REF_BASE)->t);  /* Children must not coalesce with BASE reg. */
+  emit_setgl(as, base, jit_base);
+  emit_addptr(as, base, -8*delta);
+  asm_guard(as, MIPSI_BNE, RID_TMP,
+	    ra_allock(as, igcptr(pc), rset_exclude(RSET_GPR, base)));
+  emit_tsi(as, MIPSI_AL, RID_TMP, base, -8);
+}
+
+/* -- Buffer operations --------------------------------------------------- */
+
+#if LJ_HASBUFFER
+static void asm_bufhdr_write(ASMState *as, Reg sb)
+{
+  Reg tmp = ra_scratch(as, rset_exclude(RSET_GPR, sb));
+  IRIns irgc;
+  irgc.ot = IRT(0, IRT_PGC);  /* GC type. */
+  emit_storeofs(as, &irgc, RID_TMP, sb, offsetof(SBuf, L));
+  if ((as->flags & JIT_F_MIPSXXR2)) {
+    emit_tsml(as, LJ_64 ? MIPSI_DINS : MIPSI_INS, RID_TMP, tmp,
+	      lj_fls(SBUF_MASK_FLAG), 0);
+  } else {
+    emit_dst(as, MIPSI_OR, RID_TMP, RID_TMP, tmp);
+    emit_tsi(as, MIPSI_ANDI, tmp, tmp, SBUF_MASK_FLAG);
+  }
+  emit_getgl(as, RID_TMP, cur_L);
+  emit_loadofs(as, &irgc, tmp, sb, offsetof(SBuf, L));
+}
+#endif
+
+/* -- Type conversions ---------------------------------------------------- */
+
+#if !LJ_SOFTFP
+static void asm_tointg(ASMState *as, IRIns *ir, Reg left)
+{
+  Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, left));
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+#if !LJ_TARGET_MIPSR6
+  asm_guard(as, MIPSI_BC1F, 0, 0);
+  emit_fgh(as, MIPSI_C_EQ_D, 0, tmp, left);
+#else
+  asm_guard(as, MIPSI_BC1EQZ, 0, (tmp&31));
+  emit_fgh(as, MIPSI_CMP_EQ_D, tmp, tmp, left);
+#endif
+  emit_fg(as, MIPSI_CVT_D_W, tmp, tmp);
+  emit_tg(as, MIPSI_MFC1, dest, tmp);
+  emit_fg(as, MIPSI_CVT_W_D, tmp, left);
+}
+
+static void asm_tobit(ASMState *as, IRIns *ir)
+{
+  RegSet allow = RSET_FPR;
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, allow);
+  Reg right = ra_alloc1(as, ir->op2, rset_clear(allow, left));
+  Reg tmp = ra_scratch(as, rset_clear(allow, right));
+  emit_tg(as, MIPSI_MFC1, dest, tmp);
+  emit_fgh(as, MIPSI_ADD_D, tmp, left, right);
+}
+#elif LJ_64  /* && LJ_SOFTFP */
+static void asm_tointg(ASMState *as, IRIns *ir, Reg r)
+{
+  /* The modified regs must match with the *.dasc implementation. */
+  RegSet drop = RID2RSET(REGARG_FIRSTGPR)|RID2RSET(RID_RET)|RID2RSET(RID_RET+1)|
+		RID2RSET(RID_R1)|RID2RSET(RID_R12);
+  if (ra_hasreg(ir->r)) rset_clear(drop, ir->r);
+  ra_evictset(as, drop);
+  /* Return values are in RID_RET (converted value) and RID_RET+1 (status). */
+  ra_destreg(as, ir, RID_RET);
+  asm_guard(as, MIPSI_BNE, RID_RET+1, RID_ZERO);
+  emit_call(as, (void *)lj_ir_callinfo[IRCALL_lj_vm_tointg].func, 0);
+  if (r == RID_NONE)
+    ra_leftov(as, REGARG_FIRSTGPR, ir->op1);
+  else if (r != REGARG_FIRSTGPR)
+    emit_move(as, REGARG_FIRSTGPR, r);
+}
+
+static void asm_tobit(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  emit_dta(as, MIPSI_SLL, dest, dest, 0);
+  asm_callid(as, ir, IRCALL_lj_vm_tobit);
+}
+#endif
+
+static void asm_conv(ASMState *as, IRIns *ir)
+{
+  IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+#if !LJ_SOFTFP32
+  int stfp = (st == IRT_NUM || st == IRT_FLOAT);
+#endif
+#if LJ_64
+  int st64 = (st == IRT_I64 || st == IRT_U64 || st == IRT_P64);
+#endif
+  IRRef lref = ir->op1;
+#if LJ_32
+  /* 64 bit integer conversions are handled by SPLIT. */
+  lj_assertA(!(irt_isint64(ir->t) || (st == IRT_I64 || st == IRT_U64)),
+	     "IR %04d has unsplit 64 bit type",
+	     (int)(ir - as->ir) - REF_BIAS);
+#endif
+#if LJ_SOFTFP32
+  /* FP conversions are handled by SPLIT. */
+  lj_assertA(!irt_isfp(ir->t) && !(st == IRT_NUM || st == IRT_FLOAT),
+	     "IR %04d has FP type",
+	     (int)(ir - as->ir) - REF_BIAS);
+  /* Can't check for same types: SPLIT uses CONV int.int + BXOR for sfp NEG. */
+#else
+  lj_assertA(irt_type(ir->t) != st, "inconsistent types for CONV");
+#if !LJ_SOFTFP
+  if (irt_isfp(ir->t)) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    if (stfp) {  /* FP to FP conversion. */
+      emit_fg(as, st == IRT_NUM ? MIPSI_CVT_S_D : MIPSI_CVT_D_S,
+	      dest, ra_alloc1(as, lref, RSET_FPR));
+    } else if (st == IRT_U32) {  /* U32 to FP conversion. */
+      /* y = (x ^ 0x8000000) + 2147483648.0 */
+      Reg left = ra_alloc1(as, lref, RSET_GPR);
+      Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, dest));
+      if (irt_isfloat(ir->t))
+	emit_fg(as, MIPSI_CVT_S_D, dest, dest);
+      /* Must perform arithmetic with doubles to keep the precision. */
+      emit_fgh(as, MIPSI_ADD_D, dest, dest, tmp);
+      emit_fg(as, MIPSI_CVT_D_W, dest, dest);
+      emit_lsptr(as, MIPSI_LDC1, (tmp & 31),
+		 (void *)&as->J->k64[LJ_K64_2P31], RSET_GPR);
+      emit_tg(as, MIPSI_MTC1, RID_TMP, dest);
+      emit_dst(as, MIPSI_XOR, RID_TMP, RID_TMP, left);
+      emit_ti(as, MIPSI_LUI, RID_TMP, 0x8000);
+#if LJ_64
+    } else if(st == IRT_U64) {  /* U64 to FP conversion. */
+      /* if (x >= 1u<<63) y = (double)(int64_t)(x&(1u<<63)-1) + pow(2.0, 63) */
+      Reg left = ra_alloc1(as, lref, RSET_GPR);
+      Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, dest));
+      MCLabel l_end = emit_label(as);
+      if (irt_isfloat(ir->t)) {
+	emit_fgh(as, MIPSI_ADD_S, dest, dest, tmp);
+	emit_lsptr(as, MIPSI_LWC1, (tmp & 31), (void *)&as->J->k32[LJ_K32_2P63],
+		   rset_exclude(RSET_GPR, left));
+	emit_fg(as, MIPSI_CVT_S_L, dest, dest);
+      } else {
+	emit_fgh(as, MIPSI_ADD_D, dest, dest, tmp);
+	emit_lsptr(as, MIPSI_LDC1, (tmp & 31), (void *)&as->J->k64[LJ_K64_2P63],
+		   rset_exclude(RSET_GPR, left));
+	emit_fg(as, MIPSI_CVT_D_L, dest, dest);
+      }
+      emit_branch(as, MIPSI_BGEZ, left, RID_ZERO, l_end);
+      emit_tg(as, MIPSI_DMTC1, RID_TMP, dest);
+      emit_tsml(as, MIPSI_DEXTM, RID_TMP, left, 30, 0);
+#endif
+    } else {  /* Integer to FP conversion. */
+      Reg left = ra_alloc1(as, lref, RSET_GPR);
+#if LJ_32
+      emit_fg(as, irt_isfloat(ir->t) ? MIPSI_CVT_S_W : MIPSI_CVT_D_W,
+	      dest, dest);
+      emit_tg(as, MIPSI_MTC1, left, dest);
+#else
+      MIPSIns mi = irt_isfloat(ir->t) ?
+	(st64 ? MIPSI_CVT_S_L : MIPSI_CVT_S_W) :
+	(st64 ? MIPSI_CVT_D_L : MIPSI_CVT_D_W);
+      emit_fg(as, mi, dest, dest);
+      emit_tg(as, st64 ? MIPSI_DMTC1 : MIPSI_MTC1, left, dest);
+#endif
+    }
+  } else if (stfp) {  /* FP to integer conversion. */
+    if (irt_isguard(ir->t)) {
+      /* Checked conversions are only supported from number to int. */
+      lj_assertA(irt_isint(ir->t) && st == IRT_NUM,
+		 "bad type for checked CONV");
+      asm_tointg(as, ir, ra_alloc1(as, lref, RSET_FPR));
+    } else {
+      Reg dest = ra_dest(as, ir, RSET_GPR);
+      Reg left = ra_alloc1(as, lref, RSET_FPR);
+      Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, left));
+      if (irt_isu32(ir->t)) {  /* FP to U32 conversion. */
+	/* y = (int)floor(x - 2147483648.0) ^ 0x80000000 */
+	emit_dst(as, MIPSI_XOR, dest, dest, RID_TMP);
+	emit_ti(as, MIPSI_LUI, RID_TMP, 0x8000);
+	emit_tg(as, MIPSI_MFC1, dest, tmp);
+	emit_fg(as, st == IRT_FLOAT ? MIPSI_FLOOR_W_S : MIPSI_FLOOR_W_D,
+		tmp, tmp);
+	emit_fgh(as, st == IRT_FLOAT ? MIPSI_SUB_S : MIPSI_SUB_D,
+		 tmp, left, tmp);
+	if (st == IRT_FLOAT)
+	  emit_lsptr(as, MIPSI_LWC1, (tmp & 31),
+		     (void *)&as->J->k32[LJ_K32_2P31], RSET_GPR);
+	else
+	  emit_lsptr(as, MIPSI_LDC1, (tmp & 31),
+		     (void *)&as->J->k64[LJ_K64_2P31], RSET_GPR);
+#if LJ_64
+      } else if (irt_isu64(ir->t)) {  /* FP to U64 conversion. */
+	MCLabel l_end;
+	emit_tg(as, MIPSI_DMFC1, dest, tmp);
+	l_end = emit_label(as);
+	/* For inputs >= 2^63 add -2^64 and convert again. */
+	if (st == IRT_NUM) {
+	  emit_fg(as, MIPSI_TRUNC_L_D, tmp, tmp);
+	  emit_fgh(as, MIPSI_ADD_D, tmp, left, tmp);
+	  emit_lsptr(as, MIPSI_LDC1, (tmp & 31),
+		     (void *)&as->J->k64[LJ_K64_M2P64],
+		     rset_exclude(RSET_GPR, dest));
+	  emit_fg(as, MIPSI_TRUNC_L_D, tmp, left);  /* Delay slot. */
+#if !LJ_TARGET_MIPSR6
+	 emit_branch(as, MIPSI_BC1T, 0, 0, l_end);
+	 emit_fgh(as, MIPSI_C_OLT_D, 0, left, tmp);
+#else
+	 emit_branch(as, MIPSI_BC1NEZ, 0, (left&31), l_end);
+	 emit_fgh(as, MIPSI_CMP_LT_D, left, left, tmp);
+#endif
+	  emit_lsptr(as, MIPSI_LDC1, (tmp & 31),
+		     (void *)&as->J->k64[LJ_K64_2P63],
+		     rset_exclude(RSET_GPR, dest));
+	} else {
+	  emit_fg(as, MIPSI_TRUNC_L_S, tmp, tmp);
+	  emit_fgh(as, MIPSI_ADD_S, tmp, left, tmp);
+	  emit_lsptr(as, MIPSI_LWC1, (tmp & 31),
+		     (void *)&as->J->k32[LJ_K32_M2P64],
+		     rset_exclude(RSET_GPR, dest));
+	  emit_fg(as, MIPSI_TRUNC_L_S, tmp, left);  /* Delay slot. */
+#if !LJ_TARGET_MIPSR6
+	 emit_branch(as, MIPSI_BC1T, 0, 0, l_end);
+	 emit_fgh(as, MIPSI_C_OLT_S, 0, left, tmp);
+#else
+	 emit_branch(as, MIPSI_BC1NEZ, 0, (left&31), l_end);
+	 emit_fgh(as, MIPSI_CMP_LT_S, left, left, tmp);
+#endif
+	  emit_lsptr(as, MIPSI_LWC1, (tmp & 31),
+		     (void *)&as->J->k32[LJ_K32_2P63],
+		     rset_exclude(RSET_GPR, dest));
+	}
+#endif
+      } else {
+#if LJ_32
+	emit_tg(as, MIPSI_MFC1, dest, tmp);
+	emit_fg(as, st == IRT_FLOAT ? MIPSI_TRUNC_W_S : MIPSI_TRUNC_W_D,
+		tmp, left);
+#else
+	MIPSIns mi = irt_is64(ir->t) ?
+	  (st == IRT_NUM ? MIPSI_TRUNC_L_D : MIPSI_TRUNC_L_S) :
+	  (st == IRT_NUM ? MIPSI_TRUNC_W_D : MIPSI_TRUNC_W_S);
+	emit_tg(as, irt_is64(ir->t) ? MIPSI_DMFC1 : MIPSI_MFC1, dest, left);
+	emit_fg(as, mi, left, left);
+#endif
+      }
+    }
+  } else
+#else
+  if (irt_isfp(ir->t)) {
+#if LJ_64 && LJ_HASFFI
+    if (stfp) {  /* FP to FP conversion. */
+      asm_callid(as, ir, irt_isnum(ir->t) ? IRCALL_softfp_f2d :
+					    IRCALL_softfp_d2f);
+    } else {  /* Integer to FP conversion. */
+      IRCallID cid = ((IRT_IS64 >> st) & 1) ?
+	(irt_isnum(ir->t) ?
+	 (st == IRT_I64 ? IRCALL_fp64_l2d : IRCALL_fp64_ul2d) :
+	 (st == IRT_I64 ? IRCALL_fp64_l2f : IRCALL_fp64_ul2f)) :
+	(irt_isnum(ir->t) ?
+	 (st == IRT_INT ? IRCALL_softfp_i2d : IRCALL_softfp_ui2d) :
+	 (st == IRT_INT ? IRCALL_softfp_i2f : IRCALL_softfp_ui2f));
+      asm_callid(as, ir, cid);
+    }
+#else
+    asm_callid(as, ir, IRCALL_softfp_i2d);
+#endif
+  } else if (stfp) {  /* FP to integer conversion. */
+    if (irt_isguard(ir->t)) {
+      /* Checked conversions are only supported from number to int. */
+      lj_assertA(irt_isint(ir->t) && st == IRT_NUM,
+		 "bad type for checked CONV");
+      asm_tointg(as, ir, RID_NONE);
+    } else {
+      IRCallID cid = irt_is64(ir->t) ?
+	((st == IRT_NUM) ?
+	 (irt_isi64(ir->t) ? IRCALL_fp64_d2l : IRCALL_fp64_d2ul) :
+	 (irt_isi64(ir->t) ? IRCALL_fp64_f2l : IRCALL_fp64_f2ul)) :
+	((st == IRT_NUM) ?
+	 (irt_isint(ir->t) ? IRCALL_softfp_d2i : IRCALL_softfp_d2ui) :
+	 (irt_isint(ir->t) ? IRCALL_softfp_f2i : IRCALL_softfp_f2ui));
+      asm_callid(as, ir, cid);
+    }
+  } else
+#endif
+#endif
+  {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    if (st >= IRT_I8 && st <= IRT_U16) {  /* Extend to 32 bit integer. */
+      Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+      lj_assertA(irt_isint(ir->t) || irt_isu32(ir->t), "bad type for CONV EXT");
+      if ((ir->op2 & IRCONV_SEXT)) {
+	if (LJ_64 || (as->flags & JIT_F_MIPSXXR2)) {
+	  emit_dst(as, st == IRT_I8 ? MIPSI_SEB : MIPSI_SEH, dest, 0, left);
+	} else {
+	  uint32_t shift = st == IRT_I8 ? 24 : 16;
+	  emit_dta(as, MIPSI_SRA, dest, dest, shift);
+	  emit_dta(as, MIPSI_SLL, dest, left, shift);
+	}
+      } else {
+	emit_tsi(as, MIPSI_ANDI, dest, left,
+		 (int32_t)(st == IRT_U8 ? 0xff : 0xffff));
+      }
+    } else {  /* 32/64 bit integer conversions. */
+#if LJ_32
+      /* Only need to handle 32/32 bit no-op (cast) on 32 bit archs. */
+      ra_leftov(as, dest, lref);  /* Do nothing, but may need to move regs. */
+#else
+      if (irt_is64(ir->t)) {
+	if (st64) {
+	  /* 64/64 bit no-op (cast)*/
+	  ra_leftov(as, dest, lref);
+	} else {
+	  Reg left = ra_alloc1(as, lref, RSET_GPR);
+	  if ((ir->op2 & IRCONV_SEXT)) {  /* 32 to 64 bit sign extension. */
+	    emit_dta(as, MIPSI_SLL, dest, left, 0);
+	  } else {  /* 32 to 64 bit zero extension. */
+	    emit_tsml(as, MIPSI_DEXT, dest, left, 31, 0);
+	  }
+	}
+      } else {
+	if (st64 && !(ir->op2 & IRCONV_NONE)) {
+	  /* This is either a 32 bit reg/reg mov which zeroes the hiword
+	  ** or a load of the loword from a 64 bit address.
+	  */
+	  Reg left = ra_alloc1(as, lref, RSET_GPR);
+	  emit_tsml(as, MIPSI_DEXT, dest, left, 31, 0);
+	} else {  /* 32/32 bit no-op (cast). */
+	  /* Do nothing, but may need to move regs. */
+	  ra_leftov(as, dest, lref);
+	}
+      }
+#endif
+    }
+  }
+}
+
+static void asm_strto(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_strscan_num];
+  IRRef args[2];
+  int32_t ofs = 0;
+#if LJ_SOFTFP32
+  ra_evictset(as, RSET_SCRATCH);
+  if (ra_used(ir)) {
+    if (ra_hasspill(ir->s) && ra_hasspill((ir+1)->s) &&
+	(ir->s & 1) == LJ_BE && (ir->s ^ 1) == (ir+1)->s) {
+      int i;
+      for (i = 0; i < 2; i++) {
+	Reg r = (ir+i)->r;
+	if (ra_hasreg(r)) {
+	  ra_free(as, r);
+	  ra_modified(as, r);
+	  emit_spload(as, ir+i, r, sps_scale((ir+i)->s));
+	}
+      }
+      ofs = sps_scale(ir->s & ~1);
+    } else {
+      Reg rhi = ra_dest(as, ir+1, RSET_GPR);
+      Reg rlo = ra_dest(as, ir, rset_exclude(RSET_GPR, rhi));
+      emit_tsi(as, MIPSI_LW, rhi, RID_SP, ofs+(LJ_BE?0:4));
+      emit_tsi(as, MIPSI_LW, rlo, RID_SP, ofs+(LJ_BE?4:0));
+    }
+  }
+#else
+  RegSet drop = RSET_SCRATCH;
+  if (ra_hasreg(ir->r)) rset_set(drop, ir->r);  /* Spill dest reg (if any). */
+  ra_evictset(as, drop);
+  ofs = sps_scale(ir->s);
+#endif
+  asm_guard(as, MIPSI_BEQ, RID_RET, RID_ZERO);  /* Test return status. */
+  args[0] = ir->op1;      /* GCstr *str */
+  args[1] = ASMREF_TMP1;  /* TValue *n  */
+  asm_gencall(as, ci, args);
+  /* Store the result to the spill slot or temp slots. */
+  emit_tsi(as, MIPSI_AADDIU, ra_releasetmp(as, ASMREF_TMP1),
+	   RID_SP, ofs);
+}
+
+/* -- Memory references --------------------------------------------------- */
+
+#if LJ_64
+/* Store tagged value for ref at base+ofs. */
+static void asm_tvstore64(ASMState *as, Reg base, int32_t ofs, IRRef ref)
+{
+  RegSet allow = rset_exclude(RSET_GPR, base);
+  IRIns *ir = IR(ref);
+  lj_assertA(irt_ispri(ir->t) || irt_isaddr(ir->t) || irt_isinteger(ir->t),
+	     "store of IR type %d", irt_type(ir->t));
+  if (irref_isk(ref)) {
+    TValue k;
+    lj_ir_kvalue(as->J->L, &k, ir);
+    emit_tsi(as, MIPSI_SD, ra_allock(as, (int64_t)k.u64, allow), base, ofs);
+  } else {
+    Reg src = ra_alloc1(as, ref, allow);
+    Reg type = ra_allock(as, (int64_t)irt_toitype(ir->t) << 47,
+			 rset_exclude(allow, src));
+    emit_tsi(as, MIPSI_SD, RID_TMP, base, ofs);
+    if (irt_isinteger(ir->t)) {
+      emit_dst(as, MIPSI_DADDU, RID_TMP, RID_TMP, type);
+      emit_tsml(as, MIPSI_DEXT, RID_TMP, src, 31, 0);
+    } else {
+      emit_dst(as, MIPSI_DADDU, RID_TMP, src, type);
+    }
+  }
+}
+#endif
+
+/* Get pointer to TValue. */
+static void asm_tvptr(ASMState *as, Reg dest, IRRef ref, MSize mode)
+{
+  int32_t tmpofs = (int32_t)(offsetof(global_State, tmptv)-32768);
+  if ((mode & IRTMPREF_IN1)) {
+    IRIns *ir = IR(ref);
+    if (irt_isnum(ir->t)) {
+      if ((mode & IRTMPREF_OUT1)) {
+#if LJ_SOFTFP
+	emit_tsi(as, MIPSI_AADDIU, dest, RID_JGL, tmpofs);
+#if LJ_64
+	emit_setgl(as, ra_alloc1(as, ref, RSET_GPR), tmptv.u64);
+#else
+	lj_assertA(irref_isk(ref), "unsplit FP op");
+	emit_setgl(as,
+		   ra_allock(as, (int32_t)ir_knum(ir)->u32.lo, RSET_GPR),
+		   tmptv.u32.lo);
+	emit_setgl(as,
+		   ra_allock(as, (int32_t)ir_knum(ir)->u32.hi, RSET_GPR),
+		   tmptv.u32.hi);
+#endif
+#else
+	Reg src = ra_alloc1(as, ref, RSET_FPR);
+	emit_tsi(as, MIPSI_AADDIU, dest, RID_JGL, tmpofs);
+	emit_tsi(as, MIPSI_SDC1, (src & 31),  RID_JGL, tmpofs);
+#endif
+      } else if (irref_isk(ref)) {
+	/* Use the number constant itself as a TValue. */
+	ra_allockreg(as, igcptr(ir_knum(ir)), dest);
+      } else {
+#if LJ_SOFTFP32
+	lj_assertA(0, "unsplit FP op");
+#else
+	/* Otherwise force a spill and use the spill slot. */
+	emit_tsi(as, MIPSI_AADDIU, dest, RID_SP, ra_spill(as, ir));
+#endif
+      }
+    } else {
+      /* Otherwise use g->tmptv to hold the TValue. */
+#if LJ_32
+      Reg type;
+      emit_tsi(as, MIPSI_ADDIU, dest, RID_JGL, tmpofs);
+      if (!irt_ispri(ir->t)) {
+	Reg src = ra_alloc1(as, ref, RSET_GPR);
+	emit_setgl(as, src, tmptv.gcr);
+      }
+      if (LJ_SOFTFP && (ir+1)->o == IR_HIOP && !irt_isnil((ir+1)->t))
+	type = ra_alloc1(as, ref+1, RSET_GPR);
+      else
+	type = ra_allock(as, (int32_t)irt_toitype(ir->t), RSET_GPR);
+      emit_setgl(as, type, tmptv.it);
+#else
+      asm_tvstore64(as, dest, 0, ref);
+      emit_tsi(as, MIPSI_DADDIU, dest, RID_JGL, tmpofs);
+#endif
+    }
+  } else {
+    emit_tsi(as, MIPSI_AADDIU, dest, RID_JGL, tmpofs);
+  }
+}
+
+static void asm_aref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg idx, base;
+  if (irref_isk(ir->op2)) {
+    IRRef tab = IR(ir->op1)->op1;
+    int32_t ofs = asm_fuseabase(as, tab);
+    IRRef refa = ofs ? tab : ir->op1;
+    ofs += 8*IR(ir->op2)->i;
+    if (checki16(ofs)) {
+      base = ra_alloc1(as, refa, RSET_GPR);
+      emit_tsi(as, MIPSI_AADDIU, dest, base, ofs);
+      return;
+    }
+  }
+  base = ra_alloc1(as, ir->op1, RSET_GPR);
+  idx = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, base));
+#if !LJ_TARGET_MIPSR6
+  emit_dst(as, MIPSI_AADDU, dest, RID_TMP, base);
+  emit_dta(as, MIPSI_SLL, RID_TMP, idx, 3);
+#else
+  emit_dst(as, MIPSI_ALSA | MIPSF_A(3-1), dest, idx, base);
+#endif
+}
+
+/* Inlined hash lookup. Specialized for key type and for const keys.
+** The equivalent C code is:
+**   Node *n = hashkey(t, key);
+**   do {
+**     if (lj_obj_equal(&n->key, key)) return &n->val;
+**   } while ((n = nextnode(n)));
+**   return niltv(L);
+*/
+static void asm_href(ASMState *as, IRIns *ir, IROp merge)
+{
+  RegSet allow = RSET_GPR;
+  int destused = ra_used(ir);
+  Reg dest = ra_dest(as, ir, allow);
+  Reg tab = ra_alloc1(as, ir->op1, rset_clear(allow, dest));
+  Reg key = RID_NONE, type = RID_NONE, tmpnum = RID_NONE, tmp1 = RID_TMP, tmp2;
+#if LJ_64
+  Reg cmp64 = RID_NONE;
+#endif
+  IRRef refkey = ir->op2;
+  IRIns *irkey = IR(refkey);
+  int isk = irref_isk(refkey);
+  IRType1 kt = irkey->t;
+  uint32_t khash;
+  MCLabel l_end, l_loop, l_next;
+
+  rset_clear(allow, tab);
+  if (!LJ_SOFTFP && irt_isnum(kt)) {
+    key = ra_alloc1(as, refkey, RSET_FPR);
+    tmpnum = ra_scratch(as, rset_exclude(RSET_FPR, key));
+  } else {
+    if (!irt_ispri(kt)) {
+      key = ra_alloc1(as, refkey, allow);
+      rset_clear(allow, key);
+    }
+#if LJ_32
+    if (LJ_SOFTFP && irkey[1].o == IR_HIOP) {
+      if (ra_hasreg((irkey+1)->r)) {
+	type = tmpnum = (irkey+1)->r;
+	tmp1 = ra_scratch(as, allow);
+	rset_clear(allow, tmp1);
+	ra_noweak(as, tmpnum);
+      } else {
+	type = tmpnum = ra_allocref(as, refkey+1, allow);
+      }
+      rset_clear(allow, tmpnum);
+    } else {
+      type = ra_allock(as, (int32_t)irt_toitype(kt), allow);
+      rset_clear(allow, type);
+    }
+#endif
+  }
+  tmp2 = ra_scratch(as, allow);
+  rset_clear(allow, tmp2);
+#if LJ_64
+  if (LJ_SOFTFP || !irt_isnum(kt)) {
+    /* Allocate cmp64 register used for 64-bit comparisons */
+    if (LJ_SOFTFP && irt_isnum(kt)) {
+      cmp64 = key;
+    } else if (!isk && irt_isaddr(kt)) {
+      cmp64 = tmp2;
+    } else {
+      int64_t k;
+      if (isk && irt_isaddr(kt)) {
+	k = ((int64_t)irt_toitype(kt) << 47) | irkey[1].tv.u64;
+      } else {
+	lj_assertA(irt_ispri(kt) && !irt_isnil(kt), "bad HREF key type");
+	k = ~((int64_t)~irt_toitype(kt) << 47);
+      }
+      cmp64 = ra_allock(as, k, allow);
+      rset_clear(allow, cmp64);
+    }
+  }
+#endif
+
+  /* Key not found in chain: jump to exit (if merged) or load niltv. */
+  l_end = emit_label(as);
+  as->invmcp = NULL;
+  if (merge == IR_NE)
+    asm_guard(as, MIPSI_B, RID_ZERO, RID_ZERO);
+  else if (destused)
+    emit_loada(as, dest, niltvg(J2G(as->J)));
+  /* Follow hash chain until the end. */
+  emit_move(as, dest, tmp1);
+  l_loop = --as->mcp;
+  emit_tsi(as, MIPSI_AL, tmp1, dest, (int32_t)offsetof(Node, next));
+  l_next = emit_label(as);
+
+  /* Type and value comparison. */
+  if (merge == IR_EQ) {  /* Must match asm_guard(). */
+    emit_ti(as, MIPSI_LI, RID_TMP, as->snapno);
+    l_end = asm_exitstub_addr(as);
+  }
+  if (!LJ_SOFTFP && irt_isnum(kt)) {
+#if !LJ_TARGET_MIPSR6
+    emit_branch(as, MIPSI_BC1T, 0, 0, l_end);
+    emit_fgh(as, MIPSI_C_EQ_D, 0, tmpnum, key);
+#else
+    emit_branch(as, MIPSI_BC1NEZ, 0, (tmpnum&31), l_end);
+    emit_fgh(as, MIPSI_CMP_EQ_D, tmpnum, tmpnum, key);
+#endif
+    *--as->mcp = MIPSI_NOP;  /* Avoid NaN comparison overhead. */
+    emit_branch(as, MIPSI_BEQ, tmp1, RID_ZERO, l_next);
+    emit_tsi(as, MIPSI_SLTIU, tmp1, tmp1, (int32_t)LJ_TISNUM);
+#if LJ_32
+    emit_hsi(as, MIPSI_LDC1, tmpnum, dest, (int32_t)offsetof(Node, key.n));
+  } else {
+    if (irt_ispri(kt)) {
+      emit_branch(as, MIPSI_BEQ, tmp1, type, l_end);
+    } else {
+      emit_branch(as, MIPSI_BEQ, tmp2, key, l_end);
+      emit_tsi(as, MIPSI_LW, tmp2, dest, (int32_t)offsetof(Node, key.gcr));
+      emit_branch(as, MIPSI_BNE, tmp1, type, l_next);
+    }
+  }
+  emit_tsi(as, MIPSI_LW, tmp1, dest, (int32_t)offsetof(Node, key.it));
+  *l_loop = MIPSI_BNE | MIPSF_S(tmp1) | ((as->mcp-l_loop-1) & 0xffffu);
+#else
+    emit_dta(as, MIPSI_DSRA32, tmp1, tmp1, 15);
+    emit_tg(as, MIPSI_DMTC1, tmp1, tmpnum);
+    emit_tsi(as, MIPSI_LD, tmp1, dest, (int32_t)offsetof(Node, key.u64));
+  } else {
+    emit_branch(as, MIPSI_BEQ, tmp1, cmp64, l_end);
+    emit_tsi(as, MIPSI_LD, tmp1, dest, (int32_t)offsetof(Node, key.u64));
+  }
+  *l_loop = MIPSI_BNE | MIPSF_S(tmp1) | ((as->mcp-l_loop-1) & 0xffffu);
+  if (!isk && irt_isaddr(kt)) {
+    type = ra_allock(as, (int64_t)irt_toitype(kt) << 47, allow);
+    emit_dst(as, MIPSI_DADDU, tmp2, key, type);
+    rset_clear(allow, type);
+  }
+#endif
+
+  /* Load main position relative to tab->node into dest. */
+  khash = isk ? ir_khash(as, irkey) : 1;
+  if (khash == 0) {
+    emit_tsi(as, MIPSI_AL, dest, tab, (int32_t)offsetof(GCtab, node));
+  } else {
+    Reg tmphash = tmp1;
+    if (isk)
+      tmphash = ra_allock(as, khash, allow);
+    emit_dst(as, MIPSI_AADDU, dest, dest, tmp1);
+    lj_assertA(sizeof(Node) == 24, "bad Node size");
+    emit_dst(as, MIPSI_SUBU, tmp1, tmp2, tmp1);
+    emit_dta(as, MIPSI_SLL, tmp1, tmp1, 3);
+    emit_dta(as, MIPSI_SLL, tmp2, tmp1, 5);
+    emit_dst(as, MIPSI_AND, tmp1, tmp2, tmphash);
+    emit_tsi(as, MIPSI_AL, dest, tab, (int32_t)offsetof(GCtab, node));
+    emit_tsi(as, MIPSI_LW, tmp2, tab, (int32_t)offsetof(GCtab, hmask));
+    if (isk) {
+      /* Nothing to do. */
+    } else if (irt_isstr(kt)) {
+      emit_tsi(as, MIPSI_LW, tmp1, key, (int32_t)offsetof(GCstr, sid));
+    } else {  /* Must match with hash*() in lj_tab.c. */
+      emit_dst(as, MIPSI_SUBU, tmp1, tmp1, tmp2);
+      emit_rotr(as, tmp2, tmp2, dest, (-HASH_ROT3)&31);
+      emit_dst(as, MIPSI_XOR, tmp1, tmp1, tmp2);
+      emit_rotr(as, tmp1, tmp1, dest, (-HASH_ROT2-HASH_ROT1)&31);
+      emit_dst(as, MIPSI_SUBU, tmp2, tmp2, dest);
+#if LJ_32
+      if (LJ_SOFTFP ? (irkey[1].o == IR_HIOP) : irt_isnum(kt)) {
+	emit_dst(as, MIPSI_XOR, tmp2, tmp2, tmp1);
+	if ((as->flags & JIT_F_MIPSXXR2)) {
+	  emit_dta(as, MIPSI_ROTR, dest, tmp1, (-HASH_ROT1)&31);
+	} else {
+	  emit_dst(as, MIPSI_OR, dest, dest, tmp1);
+	  emit_dta(as, MIPSI_SLL, tmp1, tmp1, HASH_ROT1);
+	  emit_dta(as, MIPSI_SRL, dest, tmp1, (-HASH_ROT1)&31);
+	}
+	emit_dst(as, MIPSI_ADDU, tmp1, tmp1, tmp1);
+#if LJ_SOFTFP
+	emit_ds(as, MIPSI_MOVE, tmp1, type);
+	emit_ds(as, MIPSI_MOVE, tmp2, key);
+#else
+	emit_tg(as, MIPSI_MFC1, tmp2, key);
+	emit_tg(as, MIPSI_MFC1, tmp1, key+1);
+#endif
+      } else {
+	emit_dst(as, MIPSI_XOR, tmp2, key, tmp1);
+	emit_rotr(as, dest, tmp1, tmp2, (-HASH_ROT1)&31);
+	emit_dst(as, MIPSI_ADDU, tmp1, key, ra_allock(as, HASH_BIAS, allow));
+      }
+#else
+      emit_dst(as, MIPSI_XOR, tmp2, tmp2, tmp1);
+      emit_dta(as, MIPSI_ROTR, dest, tmp1, (-HASH_ROT1)&31);
+      if (irt_isnum(kt)) {
+	emit_dst(as, MIPSI_ADDU, tmp1, tmp1, tmp1);
+	emit_dta(as, MIPSI_DSRA32, tmp1, LJ_SOFTFP ? key : tmp1, 0);
+	emit_dta(as, MIPSI_SLL, tmp2, LJ_SOFTFP ? key : tmp1, 0);
+#if !LJ_SOFTFP
+	emit_tg(as, MIPSI_DMFC1, tmp1, key);
+#endif
+      } else {
+	checkmclim(as);
+	emit_dta(as, MIPSI_DSRA32, tmp1, tmp1, 0);
+	emit_dta(as, MIPSI_SLL, tmp2, key, 0);
+	emit_dst(as, MIPSI_DADDU, tmp1, key, type);
+      }
+#endif
+    }
+  }
+}
+
+static void asm_hrefk(ASMState *as, IRIns *ir)
+{
+  IRIns *kslot = IR(ir->op2);
+  IRIns *irkey = IR(kslot->op1);
+  int32_t ofs = (int32_t)(kslot->op2 * sizeof(Node));
+  int32_t kofs = ofs + (int32_t)offsetof(Node, key);
+  Reg dest = (ra_used(ir)||ofs > 32736) ? ra_dest(as, ir, RSET_GPR) : RID_NONE;
+  Reg node = ra_alloc1(as, ir->op1, RSET_GPR);
+  RegSet allow = rset_exclude(RSET_GPR, node);
+  Reg idx = node;
+#if LJ_32
+  Reg key = RID_NONE, type = RID_TMP;
+  int32_t lo, hi;
+#else
+  Reg key = ra_scratch(as, allow);
+  int64_t k;
+#endif
+  lj_assertA(ofs % sizeof(Node) == 0, "unaligned HREFK slot");
+  if (ofs > 32736) {
+    idx = dest;
+    rset_clear(allow, dest);
+    kofs = (int32_t)offsetof(Node, key);
+  } else if (ra_hasreg(dest)) {
+    emit_tsi(as, MIPSI_AADDIU, dest, node, ofs);
+  }
+#if LJ_32
+  if (!irt_ispri(irkey->t)) {
+    key = ra_scratch(as, allow);
+    rset_clear(allow, key);
+  }
+  if (irt_isnum(irkey->t)) {
+    lo = (int32_t)ir_knum(irkey)->u32.lo;
+    hi = (int32_t)ir_knum(irkey)->u32.hi;
+  } else {
+    lo = irkey->i;
+    hi = irt_toitype(irkey->t);
+    if (!ra_hasreg(key))
+      goto nolo;
+  }
+  asm_guard(as, MIPSI_BNE, key, lo ? ra_allock(as, lo, allow) : RID_ZERO);
+nolo:
+  asm_guard(as, MIPSI_BNE, type, hi ? ra_allock(as, hi, allow) : RID_ZERO);
+  if (ra_hasreg(key)) emit_tsi(as, MIPSI_LW, key, idx, kofs+(LJ_BE?4:0));
+  emit_tsi(as, MIPSI_LW, type, idx, kofs+(LJ_BE?0:4));
+#else
+  if (irt_ispri(irkey->t)) {
+    lj_assertA(!irt_isnil(irkey->t), "bad HREFK key type");
+    k = ~((int64_t)~irt_toitype(irkey->t) << 47);
+  } else if (irt_isnum(irkey->t)) {
+    k = (int64_t)ir_knum(irkey)->u64;
+  } else {
+    k = ((int64_t)irt_toitype(irkey->t) << 47) | (int64_t)ir_kgc(irkey);
+  }
+  asm_guard(as, MIPSI_BNE, key, ra_allock(as, k, allow));
+  emit_tsi(as, MIPSI_LD, key, idx, kofs);
+#endif
+  if (ofs > 32736)
+    emit_tsi(as, MIPSI_AADDU, dest, node, ra_allock(as, ofs, allow));
+}
+
+static void asm_uref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  if (irref_isk(ir->op1)) {
+    GCfunc *fn = ir_kfunc(IR(ir->op1));
+    MRef *v = &gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.v;
+    emit_lsptr(as, MIPSI_AL, dest, v, RSET_GPR);
+  } else {
+    Reg uv = ra_scratch(as, RSET_GPR);
+    Reg func = ra_alloc1(as, ir->op1, RSET_GPR);
+    if (ir->o == IR_UREFC) {
+      asm_guard(as, MIPSI_BEQ, RID_TMP, RID_ZERO);
+      emit_tsi(as, MIPSI_AADDIU, dest, uv, (int32_t)offsetof(GCupval, tv));
+      emit_tsi(as, MIPSI_LBU, RID_TMP, uv, (int32_t)offsetof(GCupval, closed));
+    } else {
+      emit_tsi(as, MIPSI_AL, dest, uv, (int32_t)offsetof(GCupval, v));
+    }
+    emit_tsi(as, MIPSI_AL, uv, func, (int32_t)offsetof(GCfuncL, uvptr) +
+	     (int32_t)sizeof(MRef) * (int32_t)(ir->op2 >> 8));
+  }
+}
+
+static void asm_fref(ASMState *as, IRIns *ir)
+{
+  UNUSED(as); UNUSED(ir);
+  lj_assertA(!ra_used(ir), "unfused FREF");
+}
+
+static void asm_strref(ASMState *as, IRIns *ir)
+{
+#if LJ_32
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  IRRef ref = ir->op2, refk = ir->op1;
+  int32_t ofs = (int32_t)sizeof(GCstr);
+  Reg r;
+  if (irref_isk(ref)) {
+    IRRef tmp = refk; refk = ref; ref = tmp;
+  } else if (!irref_isk(refk)) {
+    Reg right, left = ra_alloc1(as, ir->op1, RSET_GPR);
+    IRIns *irr = IR(ir->op2);
+    if (ra_hasreg(irr->r)) {
+      ra_noweak(as, irr->r);
+      right = irr->r;
+    } else if (mayfuse(as, irr->op2) &&
+	       irr->o == IR_ADD && irref_isk(irr->op2) &&
+	       checki16(ofs + IR(irr->op2)->i)) {
+      ofs += IR(irr->op2)->i;
+      right = ra_alloc1(as, irr->op1, rset_exclude(RSET_GPR, left));
+    } else {
+      right = ra_allocref(as, ir->op2, rset_exclude(RSET_GPR, left));
+    }
+    emit_tsi(as, MIPSI_ADDIU, dest, dest, ofs);
+    emit_dst(as, MIPSI_ADDU, dest, left, right);
+    return;
+  }
+  r = ra_alloc1(as, ref, RSET_GPR);
+  ofs += IR(refk)->i;
+  if (checki16(ofs))
+    emit_tsi(as, MIPSI_ADDIU, dest, r, ofs);
+  else
+    emit_dst(as, MIPSI_ADDU, dest, r,
+	     ra_allock(as, ofs, rset_exclude(RSET_GPR, r)));
+#else
+  RegSet allow = RSET_GPR;
+  Reg dest = ra_dest(as, ir, allow);
+  Reg base = ra_alloc1(as, ir->op1, allow);
+  IRIns *irr = IR(ir->op2);
+  int32_t ofs = sizeof(GCstr);
+  rset_clear(allow, base);
+  if (irref_isk(ir->op2) && checki16(ofs + irr->i)) {
+    emit_tsi(as, MIPSI_DADDIU, dest, base, ofs + irr->i);
+  } else {
+    emit_tsi(as, MIPSI_DADDIU, dest, dest, ofs);
+    emit_dst(as, MIPSI_DADDU, dest, base, ra_alloc1(as, ir->op2, allow));
+  }
+#endif
+}
+
+/* -- Loads and stores ---------------------------------------------------- */
+
+static MIPSIns asm_fxloadins(ASMState *as, IRIns *ir)
+{
+  UNUSED(as);
+  switch (irt_type(ir->t)) {
+  case IRT_I8: return MIPSI_LB;
+  case IRT_U8: return MIPSI_LBU;
+  case IRT_I16: return MIPSI_LH;
+  case IRT_U16: return MIPSI_LHU;
+  case IRT_NUM:
+    lj_assertA(!LJ_SOFTFP32, "unsplit FP op");
+    if (!LJ_SOFTFP) return MIPSI_LDC1;
+  /* fallthrough */
+  case IRT_FLOAT: if (!LJ_SOFTFP) return MIPSI_LWC1;
+  /* fallthrough */
+  default: return (LJ_64 && irt_is64(ir->t)) ? MIPSI_LD : MIPSI_LW;
+  }
+}
+
+static MIPSIns asm_fxstoreins(ASMState *as, IRIns *ir)
+{
+  UNUSED(as);
+  switch (irt_type(ir->t)) {
+  case IRT_I8: case IRT_U8: return MIPSI_SB;
+  case IRT_I16: case IRT_U16: return MIPSI_SH;
+  case IRT_NUM:
+    lj_assertA(!LJ_SOFTFP32, "unsplit FP op");
+    if (!LJ_SOFTFP) return MIPSI_SDC1;
+  /* fallthrough */
+  case IRT_FLOAT: if (!LJ_SOFTFP) return MIPSI_SWC1;
+  /* fallthrough */
+  default: return (LJ_64 && irt_is64(ir->t)) ? MIPSI_SD : MIPSI_SW;
+  }
+}
+
+static void asm_fload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  MIPSIns mi = asm_fxloadins(as, ir);
+  Reg idx;
+  int32_t ofs;
+  if (ir->op1 == REF_NIL) {  /* FLOAD from GG_State with offset. */
+    idx = RID_JGL;
+    ofs = (ir->op2 << 2) - 32768 - GG_OFS(g);
+  } else {
+    idx = ra_alloc1(as, ir->op1, RSET_GPR);
+    if (ir->op2 == IRFL_TAB_ARRAY) {
+      ofs = asm_fuseabase(as, ir->op1);
+      if (ofs) {  /* Turn the t->array load into an add for colocated arrays. */
+	emit_tsi(as, MIPSI_AADDIU, dest, idx, ofs);
+	return;
+      }
+    }
+    ofs = field_ofs[ir->op2];
+  }
+  lj_assertA(!irt_isfp(ir->t), "bad FP FLOAD");
+  emit_tsi(as, mi, dest, idx, ofs);
+}
+
+static void asm_fstore(ASMState *as, IRIns *ir)
+{
+  if (ir->r != RID_SINK) {
+    Reg src = ra_alloc1z(as, ir->op2, RSET_GPR);
+    IRIns *irf = IR(ir->op1);
+    Reg idx = ra_alloc1(as, irf->op1, rset_exclude(RSET_GPR, src));
+    int32_t ofs = field_ofs[irf->op2];
+    MIPSIns mi = asm_fxstoreins(as, ir);
+    lj_assertA(!irt_isfp(ir->t), "bad FP FSTORE");
+    emit_tsi(as, mi, src, idx, ofs);
+  }
+}
+
+static void asm_xload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir,
+    (!LJ_SOFTFP && irt_isfp(ir->t)) ? RSET_FPR : RSET_GPR);
+  lj_assertA(LJ_TARGET_UNALIGNED || !(ir->op2 & IRXLOAD_UNALIGNED),
+	     "unaligned XLOAD");
+  asm_fusexref(as, asm_fxloadins(as, ir), dest, ir->op1, RSET_GPR, 0);
+}
+
+static void asm_xstore_(ASMState *as, IRIns *ir, int32_t ofs)
+{
+  if (ir->r != RID_SINK) {
+    Reg src = ra_alloc1z(as, ir->op2,
+      (!LJ_SOFTFP && irt_isfp(ir->t)) ? RSET_FPR : RSET_GPR);
+    asm_fusexref(as, asm_fxstoreins(as, ir), src, ir->op1,
+		 rset_exclude(RSET_GPR, src), ofs);
+  }
+}
+
+#define asm_xstore(as, ir)	asm_xstore_(as, ir, 0)
+
+static void asm_ahuvload(ASMState *as, IRIns *ir)
+{
+  int hiop = (LJ_SOFTFP32 && (ir+1)->o == IR_HIOP);
+  Reg dest = RID_NONE, type = RID_TMP, idx;
+  RegSet allow = RSET_GPR;
+  int32_t ofs = 0;
+  IRType1 t = ir->t;
+  if (hiop) {
+    t.irt = IRT_NUM;
+    if (ra_used(ir+1)) {
+      type = ra_dest(as, ir+1, allow);
+      rset_clear(allow, type);
+    }
+  }
+  if (ra_used(ir)) {
+    lj_assertA((LJ_SOFTFP32 ? 0 : irt_isnum(ir->t)) ||
+	       irt_isint(ir->t) || irt_isaddr(ir->t),
+	       "bad load type %d", irt_type(ir->t));
+    dest = ra_dest(as, ir, (!LJ_SOFTFP && irt_isnum(t)) ? RSET_FPR : allow);
+    rset_clear(allow, dest);
+#if LJ_64
+    if (irt_isaddr(t))
+      emit_tsml(as, MIPSI_DEXTM, dest, dest, 14, 0);
+    else if (irt_isint(t))
+      emit_dta(as, MIPSI_SLL, dest, dest, 0);
+#endif
+  }
+  idx = asm_fuseahuref(as, ir->op1, &ofs, allow);
+  if (ir->o == IR_VLOAD) ofs += 8 * ir->op2;
+  rset_clear(allow, idx);
+  if (irt_isnum(t)) {
+    asm_guard(as, MIPSI_BEQ, RID_TMP, RID_ZERO);
+    emit_tsi(as, MIPSI_SLTIU, RID_TMP, type, (int32_t)LJ_TISNUM);
+  } else {
+    asm_guard(as, MIPSI_BNE, type,
+	      ra_allock(as, (int32_t)irt_toitype(t), allow));
+  }
+#if LJ_32
+  if (ra_hasreg(dest)) {
+    if (!LJ_SOFTFP && irt_isnum(t))
+      emit_hsi(as, MIPSI_LDC1, dest, idx, ofs);
+    else
+      emit_tsi(as, MIPSI_LW, dest, idx, ofs+(LJ_BE?4:0));
+  }
+  emit_tsi(as, MIPSI_LW, type, idx, ofs+(LJ_BE?0:4));
+#else
+  if (ra_hasreg(dest)) {
+    if (!LJ_SOFTFP && irt_isnum(t)) {
+      emit_hsi(as, MIPSI_LDC1, dest, idx, ofs);
+      dest = type;
+    }
+  } else {
+    dest = type;
+  }
+  emit_dta(as, MIPSI_DSRA32, type, dest, 15);
+  emit_tsi(as, MIPSI_LD, dest, idx, ofs);
+#endif
+}
+
+static void asm_ahustore(ASMState *as, IRIns *ir)
+{
+  RegSet allow = RSET_GPR;
+  Reg idx, src = RID_NONE, type = RID_NONE;
+  int32_t ofs = 0;
+  if (ir->r == RID_SINK)
+    return;
+  if (!LJ_SOFTFP32 && irt_isnum(ir->t)) {
+    src = ra_alloc1(as, ir->op2, LJ_SOFTFP ? RSET_GPR : RSET_FPR);
+    idx = asm_fuseahuref(as, ir->op1, &ofs, allow);
+    emit_hsi(as, LJ_SOFTFP ? MIPSI_SD : MIPSI_SDC1, src, idx, ofs);
+  } else {
+#if LJ_32
+    if (!irt_ispri(ir->t)) {
+      src = ra_alloc1(as, ir->op2, allow);
+      rset_clear(allow, src);
+    }
+    if (LJ_SOFTFP && (ir+1)->o == IR_HIOP)
+      type = ra_alloc1(as, (ir+1)->op2, allow);
+    else
+      type = ra_allock(as, (int32_t)irt_toitype(ir->t), allow);
+    rset_clear(allow, type);
+    idx = asm_fuseahuref(as, ir->op1, &ofs, allow);
+    if (ra_hasreg(src))
+      emit_tsi(as, MIPSI_SW, src, idx, ofs+(LJ_BE?4:0));
+    emit_tsi(as, MIPSI_SW, type, idx, ofs+(LJ_BE?0:4));
+#else
+    Reg tmp = RID_TMP;
+    if (irt_ispri(ir->t)) {
+      tmp = ra_allock(as, ~((int64_t)~irt_toitype(ir->t) << 47), allow);
+      rset_clear(allow, tmp);
+    } else {
+      src = ra_alloc1(as, ir->op2, allow);
+      rset_clear(allow, src);
+      type = ra_allock(as, (int64_t)irt_toitype(ir->t) << 47, allow);
+      rset_clear(allow, type);
+    }
+    idx = asm_fuseahuref(as, ir->op1, &ofs, allow);
+    emit_tsi(as, MIPSI_SD, tmp, idx, ofs);
+    if (ra_hasreg(src)) {
+      if (irt_isinteger(ir->t)) {
+	emit_dst(as, MIPSI_DADDU, tmp, tmp, type);
+	emit_tsml(as, MIPSI_DEXT, tmp, src, 31, 0);
+      } else {
+	emit_dst(as, MIPSI_DADDU, tmp, src, type);
+      }
+    }
+#endif
+  }
+}
+
+static void asm_sload(ASMState *as, IRIns *ir)
+{
+  Reg dest = RID_NONE, type = RID_NONE, base;
+  RegSet allow = RSET_GPR;
+  IRType1 t = ir->t;
+#if LJ_32
+  int32_t ofs = 8*((int32_t)ir->op1-1) + ((ir->op2 & IRSLOAD_FRAME) ? 4 : 0);
+  int hiop = (LJ_SOFTFP32 && (ir+1)->o == IR_HIOP);
+  if (hiop)
+    t.irt = IRT_NUM;
+#else
+  int32_t ofs = 8*((int32_t)ir->op1-2);
+#endif
+  lj_assertA(!(ir->op2 & IRSLOAD_PARENT),
+	     "bad parent SLOAD");  /* Handled by asm_head_side(). */
+  lj_assertA(irt_isguard(ir->t) || !(ir->op2 & IRSLOAD_TYPECHECK),
+	     "inconsistent SLOAD variant");
+#if LJ_SOFTFP32
+  lj_assertA(!(ir->op2 & IRSLOAD_CONVERT),
+	     "unsplit SLOAD convert");  /* Handled by LJ_SOFTFP SPLIT. */
+  if (hiop && ra_used(ir+1)) {
+    type = ra_dest(as, ir+1, allow);
+    rset_clear(allow, type);
+  }
+#else
+  if ((ir->op2 & IRSLOAD_CONVERT) && irt_isguard(t) && irt_isint(t)) {
+    dest = ra_scratch(as, LJ_SOFTFP ? allow : RSET_FPR);
+    asm_tointg(as, ir, dest);
+    t.irt = IRT_NUM;  /* Continue with a regular number type check. */
+  } else
+#endif
+  if (ra_used(ir)) {
+    lj_assertA((LJ_SOFTFP32 ? 0 : irt_isnum(ir->t)) ||
+	       irt_isint(ir->t) || irt_isaddr(ir->t),
+	       "bad SLOAD type %d", irt_type(ir->t));
+    dest = ra_dest(as, ir, (!LJ_SOFTFP && irt_isnum(t)) ? RSET_FPR : allow);
+    rset_clear(allow, dest);
+    base = ra_alloc1(as, REF_BASE, allow);
+    rset_clear(allow, base);
+    if (!LJ_SOFTFP32 && (ir->op2 & IRSLOAD_CONVERT)) {
+      if (irt_isint(t)) {
+	Reg tmp = ra_scratch(as, LJ_SOFTFP ? RSET_GPR : RSET_FPR);
+#if LJ_SOFTFP
+	ra_evictset(as, rset_exclude(RSET_SCRATCH, dest));
+	ra_destreg(as, ir, RID_RET);
+	emit_call(as, (void *)lj_ir_callinfo[IRCALL_softfp_d2i].func, 0);
+	if (tmp != REGARG_FIRSTGPR)
+	  emit_move(as, REGARG_FIRSTGPR, tmp);
+#else
+	emit_tg(as, MIPSI_MFC1, dest, tmp);
+	emit_fg(as, MIPSI_TRUNC_W_D, tmp, tmp);
+#endif
+	dest = tmp;
+	t.irt = IRT_NUM;  /* Check for original type. */
+      } else {
+	Reg tmp = ra_scratch(as, RSET_GPR);
+#if LJ_SOFTFP
+	ra_evictset(as, rset_exclude(RSET_SCRATCH, dest));
+	ra_destreg(as, ir, RID_RET);
+	emit_call(as, (void *)lj_ir_callinfo[IRCALL_softfp_i2d].func, 0);
+	emit_dta(as, MIPSI_SLL, REGARG_FIRSTGPR, tmp, 0);
+#else
+	emit_fg(as, MIPSI_CVT_D_W, dest, dest);
+	emit_tg(as, MIPSI_MTC1, tmp, dest);
+#endif
+	dest = tmp;
+	t.irt = IRT_INT;  /* Check for original type. */
+      }
+    }
+#if LJ_64
+    else if (irt_isaddr(t)) {
+      /* Clear type from pointers. */
+      emit_tsml(as, MIPSI_DEXTM, dest, dest, 14, 0);
+    } else if (irt_isint(t) && (ir->op2 & IRSLOAD_TYPECHECK)) {
+      /* Sign-extend integers. */
+      emit_dta(as, MIPSI_SLL, dest, dest, 0);
+    }
+#endif
+    goto dotypecheck;
+  }
+  base = ra_alloc1(as, REF_BASE, allow);
+  rset_clear(allow, base);
+dotypecheck:
+#if LJ_32
+  if ((ir->op2 & IRSLOAD_TYPECHECK)) {
+    if (ra_noreg(type))
+      type = RID_TMP;
+    if (irt_isnum(t)) {
+      asm_guard(as, MIPSI_BEQ, RID_TMP, RID_ZERO);
+      emit_tsi(as, MIPSI_SLTIU, RID_TMP, type, (int32_t)LJ_TISNUM);
+    } else {
+      Reg ktype = ra_allock(as, (ir->op2 & IRSLOAD_KEYINDEX) ? LJ_KEYINDEX : irt_toitype(t), allow);
+      asm_guard(as, MIPSI_BNE, type, ktype);
+    }
+  }
+  if (ra_hasreg(dest)) {
+    if (!LJ_SOFTFP && irt_isnum(t))
+      emit_hsi(as, MIPSI_LDC1, dest, base, ofs);
+    else
+      emit_tsi(as, MIPSI_LW, dest, base, ofs ^ (LJ_BE?4:0));
+  }
+  if (ra_hasreg(type))
+    emit_tsi(as, MIPSI_LW, type, base, ofs ^ (LJ_BE?0:4));
+#else
+  if ((ir->op2 & IRSLOAD_TYPECHECK)) {
+    type = dest < RID_MAX_GPR ? dest : RID_TMP;
+    if (irt_ispri(t)) {
+      asm_guard(as, MIPSI_BNE, type,
+		ra_allock(as, ~((int64_t)~irt_toitype(t) << 47) , allow));
+    } else if ((ir->op2 & IRSLOAD_KEYINDEX)) {
+      asm_guard(as, MIPSI_BNE, RID_TMP,
+		ra_allock(as, (int32_t)LJ_KEYINDEX, allow));
+      emit_dta(as, MIPSI_DSRA32, RID_TMP, type, 0);
+    } else {
+      if (irt_isnum(t)) {
+	asm_guard(as, MIPSI_BEQ, RID_TMP, RID_ZERO);
+	emit_tsi(as, MIPSI_SLTIU, RID_TMP, RID_TMP, (int32_t)LJ_TISNUM);
+	if (!LJ_SOFTFP && ra_hasreg(dest))
+	  emit_hsi(as, MIPSI_LDC1, dest, base, ofs);
+      } else {
+	asm_guard(as, MIPSI_BNE, RID_TMP,
+		  ra_allock(as, (int32_t)irt_toitype(t), allow));
+      }
+      emit_dta(as, MIPSI_DSRA32, RID_TMP, type, 15);
+    }
+    emit_tsi(as, MIPSI_LD, type, base, ofs);
+  } else if (ra_hasreg(dest)) {
+    if (!LJ_SOFTFP && irt_isnum(t))
+      emit_hsi(as, MIPSI_LDC1, dest, base, ofs);
+    else
+      emit_tsi(as, irt_isint(t) ? MIPSI_LW : MIPSI_LD, dest, base,
+	       ofs ^ ((LJ_BE && irt_isint(t)) ? 4 : 0));
+  }
+#endif
+}
+
+/* -- Allocations --------------------------------------------------------- */
+
+#if LJ_HASFFI
+static void asm_cnew(ASMState *as, IRIns *ir)
+{
+  CTState *cts = ctype_ctsG(J2G(as->J));
+  CTypeID id = (CTypeID)IR(ir->op1)->i;
+  CTSize sz;
+  CTInfo info = lj_ctype_info(cts, id, &sz);
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_mem_newgco];
+  IRRef args[4];
+  RegSet drop = RSET_SCRATCH;
+  lj_assertA(sz != CTSIZE_INVALID || (ir->o == IR_CNEW && ir->op2 != REF_NIL),
+	     "bad CNEW/CNEWI operands");
+
+  as->gcsteps++;
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop);
+  if (ra_used(ir))
+    ra_destreg(as, ir, RID_RET);  /* GCcdata * */
+
+  /* Initialize immutable cdata object. */
+  if (ir->o == IR_CNEWI) {
+    RegSet allow = (RSET_GPR & ~RSET_SCRATCH);
+#if LJ_32
+    int32_t ofs = sizeof(GCcdata);
+    if (sz == 8) {
+      ofs += 4;
+      lj_assertA((ir+1)->o == IR_HIOP, "expected HIOP for CNEWI");
+      if (LJ_LE) ir++;
+    }
+    for (;;) {
+      Reg r = ra_alloc1z(as, ir->op2, allow);
+      emit_tsi(as, MIPSI_SW, r, RID_RET, ofs);
+      rset_clear(allow, r);
+      if (ofs == sizeof(GCcdata)) break;
+      ofs -= 4; if (LJ_BE) ir++; else ir--;
+    }
+#else
+    emit_tsi(as, sz == 8 ? MIPSI_SD : MIPSI_SW, ra_alloc1(as, ir->op2, allow),
+	     RID_RET, sizeof(GCcdata));
+#endif
+    lj_assertA(sz == 4 || sz == 8, "bad CNEWI size %d", sz);
+  } else if (ir->op2 != REF_NIL) {  /* Create VLA/VLS/aligned cdata. */
+    ci = &lj_ir_callinfo[IRCALL_lj_cdata_newv];
+    args[0] = ASMREF_L;     /* lua_State *L */
+    args[1] = ir->op1;      /* CTypeID id   */
+    args[2] = ir->op2;      /* CTSize sz    */
+    args[3] = ASMREF_TMP1;  /* CTSize align */
+    asm_gencall(as, ci, args);
+    emit_loadi(as, ra_releasetmp(as, ASMREF_TMP1), (int32_t)ctype_align(info));
+    return;
+  }
+
+  /* Initialize gct and ctypeid. lj_mem_newgco() already sets marked. */
+  emit_tsi(as, MIPSI_SB, RID_RET+1, RID_RET, offsetof(GCcdata, gct));
+  emit_tsi(as, MIPSI_SH, RID_TMP, RID_RET, offsetof(GCcdata, ctypeid));
+  emit_ti(as, MIPSI_LI, RID_RET+1, ~LJ_TCDATA);
+  emit_ti(as, MIPSI_LI, RID_TMP, id); /* Lower 16 bit used. Sign-ext ok. */
+  args[0] = ASMREF_L;     /* lua_State *L */
+  args[1] = ASMREF_TMP1;  /* MSize size   */
+  asm_gencall(as, ci, args);
+  ra_allockreg(as, (int32_t)(sz+sizeof(GCcdata)),
+	       ra_releasetmp(as, ASMREF_TMP1));
+}
+#endif
+
+/* -- Write barriers ------------------------------------------------------ */
+
+static void asm_tbar(ASMState *as, IRIns *ir)
+{
+  Reg tab = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg mark = ra_scratch(as, rset_exclude(RSET_GPR, tab));
+  Reg link = RID_TMP;
+  MCLabel l_end = emit_label(as);
+  emit_tsi(as, MIPSI_AS, link, tab, (int32_t)offsetof(GCtab, gclist));
+  emit_tsi(as, MIPSI_SB, mark, tab, (int32_t)offsetof(GCtab, marked));
+  emit_setgl(as, tab, gc.grayagain);
+  emit_getgl(as, link, gc.grayagain);
+  emit_dst(as, MIPSI_XOR, mark, mark, RID_TMP);  /* Clear black bit. */
+  emit_branch(as, MIPSI_BEQ, RID_TMP, RID_ZERO, l_end);
+  emit_tsi(as, MIPSI_ANDI, RID_TMP, mark, LJ_GC_BLACK);
+  emit_tsi(as, MIPSI_LBU, mark, tab, (int32_t)offsetof(GCtab, marked));
+}
+
+static void asm_obar(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_barrieruv];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg obj, val, tmp;
+  /* No need for other object barriers (yet). */
+  lj_assertA(IR(ir->op1)->o == IR_UREFC, "bad OBAR type");
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ir->op1;      /* TValue *tv      */
+  asm_gencall(as, ci, args);
+  emit_tsi(as, MIPSI_AADDIU, ra_releasetmp(as, ASMREF_TMP1), RID_JGL, -32768);
+  obj = IR(ir->op1)->r;
+  tmp = ra_scratch(as, rset_exclude(RSET_GPR, obj));
+  emit_branch(as, MIPSI_BEQ, RID_TMP, RID_ZERO, l_end);
+  emit_tsi(as, MIPSI_ANDI, tmp, tmp, LJ_GC_BLACK);
+  emit_branch(as, MIPSI_BEQ, RID_TMP, RID_ZERO, l_end);
+  emit_tsi(as, MIPSI_ANDI, RID_TMP, RID_TMP, LJ_GC_WHITES);
+  val = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, obj));
+  emit_tsi(as, MIPSI_LBU, tmp, obj,
+	   (int32_t)offsetof(GCupval, marked)-(int32_t)offsetof(GCupval, tv));
+  emit_tsi(as, MIPSI_LBU, RID_TMP, val, (int32_t)offsetof(GChead, marked));
+}
+
+/* -- Arithmetic and logic operations ------------------------------------- */
+
+#if !LJ_SOFTFP
+static void asm_fparith(ASMState *as, IRIns *ir, MIPSIns mi)
+{
+  Reg dest = ra_dest(as, ir, RSET_FPR);
+  Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+  right = (left >> 8); left &= 255;
+  emit_fgh(as, mi, dest, left, right);
+}
+
+static void asm_fpunary(ASMState *as, IRIns *ir, MIPSIns mi)
+{
+  Reg dest = ra_dest(as, ir, RSET_FPR);
+  Reg left = ra_hintalloc(as, ir->op1, dest, RSET_FPR);
+  emit_fg(as, mi, dest, left);
+}
+#endif
+
+#if !LJ_SOFTFP32
+static void asm_fpmath(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+  if (ir->op2 <= IRFPM_TRUNC)
+    asm_callround(as, ir, IRCALL_lj_vm_floor + ir->op2);
+  else if (ir->op2 == IRFPM_SQRT)
+    asm_fpunary(as, ir, MIPSI_SQRT_D);
+  else
+#endif
+    asm_callid(as, ir, IRCALL_lj_vm_floor + ir->op2);
+}
+#endif
+
+#if !LJ_SOFTFP
+#define asm_fpadd(as, ir)	asm_fparith(as, ir, MIPSI_ADD_D)
+#define asm_fpsub(as, ir)	asm_fparith(as, ir, MIPSI_SUB_D)
+#define asm_fpmul(as, ir)	asm_fparith(as, ir, MIPSI_MUL_D)
+#elif LJ_64  /* && LJ_SOFTFP */
+#define asm_fpadd(as, ir)	asm_callid(as, ir, IRCALL_softfp_add)
+#define asm_fpsub(as, ir)	asm_callid(as, ir, IRCALL_softfp_sub)
+#define asm_fpmul(as, ir)	asm_callid(as, ir, IRCALL_softfp_mul)
+#endif
+
+static void asm_add(ASMState *as, IRIns *ir)
+{
+  IRType1 t = ir->t;
+#if !LJ_SOFTFP32
+  if (irt_isnum(t)) {
+    asm_fpadd(as, ir);
+  } else
+#endif
+  {
+    /* TODO MIPSR6: Fuse ADD(BSHL(a,1-4),b) or ADD(ADD(a,a),b) to MIPSI_ALSA. */
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg right, left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+    if (irref_isk(ir->op2)) {
+      intptr_t k = get_kval(as, ir->op2);
+      if (checki16(k)) {
+	emit_tsi(as, (LJ_64 && irt_is64(t)) ? MIPSI_DADDIU : MIPSI_ADDIU, dest,
+		 left, k);
+	return;
+      }
+    }
+    right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+    emit_dst(as, (LJ_64 && irt_is64(t)) ? MIPSI_DADDU : MIPSI_ADDU, dest,
+	     left, right);
+  }
+}
+
+static void asm_sub(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP32
+  if (irt_isnum(ir->t)) {
+    asm_fpsub(as, ir);
+  } else
+#endif
+  {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg right, left = ra_alloc2(as, ir, RSET_GPR);
+    right = (left >> 8); left &= 255;
+    emit_dst(as, (LJ_64 && irt_is64(ir->t)) ? MIPSI_DSUBU : MIPSI_SUBU, dest,
+	     left, right);
+  }
+}
+
+static void asm_mul(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP32
+  if (irt_isnum(ir->t)) {
+    asm_fpmul(as, ir);
+  } else
+#endif
+  {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg right, left = ra_alloc2(as, ir, RSET_GPR);
+    right = (left >> 8); left &= 255;
+    if (LJ_64 && irt_is64(ir->t)) {
+#if !LJ_TARGET_MIPSR6
+      emit_dst(as, MIPSI_MFLO, dest, 0, 0);
+      emit_dst(as, MIPSI_DMULT, 0, left, right);
+#else
+      emit_dst(as, MIPSI_DMUL, dest, left, right);
+#endif
+    } else {
+      emit_dst(as, MIPSI_MUL, dest, left, right);
+    }
+  }
+}
+
+#if !LJ_SOFTFP32
+static void asm_fpdiv(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+    asm_fparith(as, ir, MIPSI_DIV_D);
+#else
+    asm_callid(as, ir, IRCALL_softfp_div);
+#endif
+}
+#endif
+
+static void asm_neg(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+  if (irt_isnum(ir->t)) {
+    asm_fpunary(as, ir, MIPSI_NEG_D);
+  } else
+#elif LJ_64  /* && LJ_SOFTFP */
+  if (irt_isnum(ir->t)) {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+    emit_dst(as, MIPSI_XOR, dest, left,
+	    ra_allock(as, 0x8000000000000000ll, rset_exclude(RSET_GPR, dest)));
+  } else
+#endif
+  {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+    emit_dst(as, (LJ_64 && irt_is64(ir->t)) ? MIPSI_DSUBU : MIPSI_SUBU, dest,
+	     RID_ZERO, left);
+  }
+}
+
+#if !LJ_SOFTFP
+#define asm_abs(as, ir)		asm_fpunary(as, ir, MIPSI_ABS_D)
+#elif LJ_64   /* && LJ_SOFTFP */
+static void asm_abs(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+  emit_tsml(as, MIPSI_DEXTM, dest, left, 30, 0);
+}
+#endif
+
+static void asm_arithov(ASMState *as, IRIns *ir)
+{
+  /* TODO MIPSR6: bovc/bnvc. Caveat: no delay slot to load RID_TMP. */
+  Reg right, left, tmp, dest = ra_dest(as, ir, RSET_GPR);
+  lj_assertA(!irt_is64(ir->t), "bad usage");
+  if (irref_isk(ir->op2)) {
+    int k = IR(ir->op2)->i;
+    if (ir->o == IR_SUBOV) k = -k;
+    if (checki16(k)) {  /* (dest < left) == (k >= 0 ? 1 : 0) */
+      left = ra_alloc1(as, ir->op1, RSET_GPR);
+      asm_guard(as, k >= 0 ? MIPSI_BNE : MIPSI_BEQ, RID_TMP, RID_ZERO);
+      emit_dst(as, MIPSI_SLT, RID_TMP, dest, dest == left ? RID_TMP : left);
+      emit_tsi(as, MIPSI_ADDIU, dest, left, k);
+      if (dest == left) emit_move(as, RID_TMP, left);
+      return;
+    }
+  }
+  left = ra_alloc2(as, ir, RSET_GPR);
+  right = (left >> 8); left &= 255;
+  tmp = ra_scratch(as, rset_exclude(rset_exclude(rset_exclude(RSET_GPR, left),
+						 right), dest));
+  asm_guard(as, MIPSI_BLTZ, RID_TMP, 0);
+  emit_dst(as, MIPSI_AND, RID_TMP, RID_TMP, tmp);
+  if (ir->o == IR_ADDOV) {  /* ((dest^left) & (dest^right)) < 0 */
+    emit_dst(as, MIPSI_XOR, RID_TMP, dest, dest == right ? RID_TMP : right);
+  } else {  /* ((dest^left) & (dest^~right)) < 0 */
+    emit_dst(as, MIPSI_XOR, RID_TMP, RID_TMP, dest);
+    emit_dst(as, MIPSI_NOR, RID_TMP, dest == right ? RID_TMP : right, RID_ZERO);
+  }
+  emit_dst(as, MIPSI_XOR, tmp, dest, dest == left ? RID_TMP : left);
+  emit_dst(as, ir->o == IR_ADDOV ? MIPSI_ADDU : MIPSI_SUBU, dest, left, right);
+  if (dest == left || dest == right)
+    emit_move(as, RID_TMP, dest == left ? left : right);
+}
+
+#define asm_addov(as, ir)	asm_arithov(as, ir)
+#define asm_subov(as, ir)	asm_arithov(as, ir)
+
+static void asm_mulov(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg tmp, right, left = ra_alloc2(as, ir, RSET_GPR);
+  right = (left >> 8); left &= 255;
+  tmp = ra_scratch(as, rset_exclude(rset_exclude(rset_exclude(RSET_GPR, left),
+						 right), dest));
+  asm_guard(as, MIPSI_BNE, RID_TMP, tmp);
+  emit_dta(as, MIPSI_SRA, RID_TMP, dest, 31);
+#if !LJ_TARGET_MIPSR6
+  emit_dst(as, MIPSI_MFHI, tmp, 0, 0);
+  emit_dst(as, MIPSI_MFLO, dest, 0, 0);
+  emit_dst(as, MIPSI_MULT, 0, left, right);
+#else
+  emit_dst(as, MIPSI_MUL, dest, left, right);
+  emit_dst(as, MIPSI_MUH, tmp, left, right);
+#endif
+}
+
+#if LJ_32 && LJ_HASFFI
+static void asm_add64(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg right, left = ra_alloc1(as, ir->op1, RSET_GPR);
+  if (irref_isk(ir->op2)) {
+    int32_t k = IR(ir->op2)->i;
+    if (k == 0) {
+      emit_dst(as, MIPSI_ADDU, dest, left, RID_TMP);
+      goto loarith;
+    } else if (checki16(k)) {
+      emit_dst(as, MIPSI_ADDU, dest, dest, RID_TMP);
+      emit_tsi(as, MIPSI_ADDIU, dest, left, k);
+      goto loarith;
+    }
+  }
+  emit_dst(as, MIPSI_ADDU, dest, dest, RID_TMP);
+  right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  emit_dst(as, MIPSI_ADDU, dest, left, right);
+loarith:
+  ir--;
+  dest = ra_dest(as, ir, RSET_GPR);
+  left = ra_alloc1(as, ir->op1, RSET_GPR);
+  if (irref_isk(ir->op2)) {
+    int32_t k = IR(ir->op2)->i;
+    if (k == 0) {
+      if (dest != left)
+	emit_move(as, dest, left);
+      return;
+    } else if (checki16(k)) {
+      if (dest == left) {
+	Reg tmp = ra_scratch(as, rset_exclude(RSET_GPR, left));
+	emit_move(as, dest, tmp);
+	dest = tmp;
+      }
+      emit_dst(as, MIPSI_SLTU, RID_TMP, dest, left);
+      emit_tsi(as, MIPSI_ADDIU, dest, left, k);
+      return;
+    }
+  }
+  right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  if (dest == left && dest == right) {
+    Reg tmp = ra_scratch(as, rset_exclude(rset_exclude(RSET_GPR, left), right));
+    emit_move(as, dest, tmp);
+    dest = tmp;
+  }
+  emit_dst(as, MIPSI_SLTU, RID_TMP, dest, dest == left ? right : left);
+  emit_dst(as, MIPSI_ADDU, dest, left, right);
+}
+
+static void asm_sub64(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg right, left = ra_alloc2(as, ir, RSET_GPR);
+  right = (left >> 8); left &= 255;
+  emit_dst(as, MIPSI_SUBU, dest, dest, RID_TMP);
+  emit_dst(as, MIPSI_SUBU, dest, left, right);
+  ir--;
+  dest = ra_dest(as, ir, RSET_GPR);
+  left = ra_alloc2(as, ir, RSET_GPR);
+  right = (left >> 8); left &= 255;
+  if (dest == left) {
+    Reg tmp = ra_scratch(as, rset_exclude(rset_exclude(RSET_GPR, left), right));
+    emit_move(as, dest, tmp);
+    dest = tmp;
+  }
+  emit_dst(as, MIPSI_SLTU, RID_TMP, left, dest);
+  emit_dst(as, MIPSI_SUBU, dest, left, right);
+}
+
+static void asm_neg64(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+  emit_dst(as, MIPSI_SUBU, dest, dest, RID_TMP);
+  emit_dst(as, MIPSI_SUBU, dest, RID_ZERO, left);
+  ir--;
+  dest = ra_dest(as, ir, RSET_GPR);
+  left = ra_alloc1(as, ir->op1, RSET_GPR);
+  emit_dst(as, MIPSI_SLTU, RID_TMP, RID_ZERO, dest);
+  emit_dst(as, MIPSI_SUBU, dest, RID_ZERO, left);
+}
+#endif
+
+static void asm_bnot(ASMState *as, IRIns *ir)
+{
+  Reg left, right, dest = ra_dest(as, ir, RSET_GPR);
+  IRIns *irl = IR(ir->op1);
+  if (mayfuse(as, ir->op1) && irl->o == IR_BOR) {
+    left = ra_alloc2(as, irl, RSET_GPR);
+    right = (left >> 8); left &= 255;
+  } else {
+    left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+    right = RID_ZERO;
+  }
+  emit_dst(as, MIPSI_NOR, dest, left, right);
+}
+
+static void asm_bswap(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+#if LJ_32
+  if ((as->flags & JIT_F_MIPSXXR2)) {
+    emit_dta(as, MIPSI_ROTR, dest, RID_TMP, 16);
+    emit_dst(as, MIPSI_WSBH, RID_TMP, 0, left);
+  } else {
+    Reg tmp = ra_scratch(as, rset_exclude(rset_exclude(RSET_GPR, left), dest));
+    emit_dst(as, MIPSI_OR, dest, dest, tmp);
+    emit_dst(as, MIPSI_OR, dest, dest, RID_TMP);
+    emit_tsi(as, MIPSI_ANDI, dest, dest, 0xff00);
+    emit_dta(as, MIPSI_SLL, RID_TMP, RID_TMP, 8);
+    emit_dta(as, MIPSI_SRL, dest, left, 8);
+    emit_tsi(as, MIPSI_ANDI, RID_TMP, left, 0xff00);
+    emit_dst(as, MIPSI_OR, tmp, tmp, RID_TMP);
+    emit_dta(as, MIPSI_SRL, tmp, left, 24);
+    emit_dta(as, MIPSI_SLL, RID_TMP, left, 24);
+  }
+#else
+  if (irt_is64(ir->t)) {
+    emit_dst(as, MIPSI_DSHD, dest, 0, RID_TMP);
+    emit_dst(as, MIPSI_DSBH, RID_TMP, 0, left);
+  } else {
+    emit_dta(as, MIPSI_ROTR, dest, RID_TMP, 16);
+    emit_dst(as, MIPSI_WSBH, RID_TMP, 0, left);
+  }
+#endif
+}
+
+static void asm_bitop(ASMState *as, IRIns *ir, MIPSIns mi, MIPSIns mik)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg right, left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+  if (irref_isk(ir->op2)) {
+    intptr_t k = get_kval(as, ir->op2);
+    if (checku16(k)) {
+      emit_tsi(as, mik, dest, left, k);
+      return;
+    }
+  }
+  right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  emit_dst(as, mi, dest, left, right);
+}
+
+#define asm_band(as, ir)	asm_bitop(as, ir, MIPSI_AND, MIPSI_ANDI)
+#define asm_bor(as, ir)		asm_bitop(as, ir, MIPSI_OR, MIPSI_ORI)
+#define asm_bxor(as, ir)	asm_bitop(as, ir, MIPSI_XOR, MIPSI_XORI)
+
+static void asm_bitshift(ASMState *as, IRIns *ir, MIPSIns mi, MIPSIns mik)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  if (irref_isk(ir->op2)) {  /* Constant shifts. */
+    uint32_t shift = (uint32_t)IR(ir->op2)->i;
+    if (LJ_64 && irt_is64(ir->t)) mik |= (shift & 32) ? MIPSI_D32 : MIPSI_D;
+    emit_dta(as, mik, dest, ra_hintalloc(as, ir->op1, dest, RSET_GPR),
+	     (shift & 31));
+  } else {
+    Reg right, left = ra_alloc2(as, ir, RSET_GPR);
+    right = (left >> 8); left &= 255;
+    if (LJ_64 && irt_is64(ir->t)) mi |= MIPSI_DV;
+    emit_dst(as, mi, dest, right, left);  /* Shift amount is in rs. */
+  }
+}
+
+#define asm_bshl(as, ir)	asm_bitshift(as, ir, MIPSI_SLLV, MIPSI_SLL)
+#define asm_bshr(as, ir)	asm_bitshift(as, ir, MIPSI_SRLV, MIPSI_SRL)
+#define asm_bsar(as, ir)	asm_bitshift(as, ir, MIPSI_SRAV, MIPSI_SRA)
+#define asm_brol(as, ir)	lj_assertA(0, "unexpected BROL")
+
+static void asm_bror(ASMState *as, IRIns *ir)
+{
+  if (LJ_64 || (as->flags & JIT_F_MIPSXXR2)) {
+    asm_bitshift(as, ir, MIPSI_ROTRV, MIPSI_ROTR);
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    if (irref_isk(ir->op2)) {  /* Constant shifts. */
+      uint32_t shift = (uint32_t)(IR(ir->op2)->i & 31);
+      Reg left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+      emit_rotr(as, dest, left, RID_TMP, shift);
+    } else {
+      Reg right, left = ra_alloc2(as, ir, RSET_GPR);
+      right = (left >> 8); left &= 255;
+      emit_dst(as, MIPSI_OR, dest, dest, RID_TMP);
+      emit_dst(as, MIPSI_SRLV, dest, right, left);
+      emit_dst(as, MIPSI_SLLV, RID_TMP, RID_TMP, left);
+      emit_dst(as, MIPSI_SUBU, RID_TMP, ra_allock(as, 32, RSET_GPR), right);
+    }
+  }
+}
+
+#if LJ_SOFTFP
+static void asm_sfpmin_max(ASMState *as, IRIns *ir)
+{
+  CCallInfo ci = lj_ir_callinfo[(IROp)ir->o == IR_MIN ? IRCALL_lj_vm_sfmin : IRCALL_lj_vm_sfmax];
+#if LJ_64
+  IRRef args[2];
+  args[0] = ir->op1;
+  args[1] = ir->op2;
+#else
+  IRRef args[4];
+  args[0^LJ_BE] = ir->op1;
+  args[1^LJ_BE] = (ir+1)->op1;
+  args[2^LJ_BE] = ir->op2;
+  args[3^LJ_BE] = (ir+1)->op2;
+#endif
+  asm_setupresult(as, ir, &ci);
+  emit_call(as, (void *)ci.func, 0);
+  ci.func = NULL;
+  asm_gencall(as, &ci, args);
+}
+#endif
+
+static void asm_min_max(ASMState *as, IRIns *ir, int ismax)
+{
+  if (!LJ_SOFTFP32 && irt_isnum(ir->t)) {
+#if LJ_SOFTFP
+    asm_sfpmin_max(as, ir);
+#else
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+    right = (left >> 8); left &= 255;
+#if !LJ_TARGET_MIPSR6
+    if (dest == left) {
+      emit_fg(as, MIPSI_MOVF_D, dest, right);
+    } else {
+      emit_fg(as, MIPSI_MOVT_D, dest, left);
+      if (dest != right) emit_fg(as, MIPSI_MOV_D, dest, right);
+    }
+    emit_fgh(as, MIPSI_C_OLT_D, 0, ismax ? right : left, ismax ? left : right);
+#else
+    emit_fgh(as, ismax ? MIPSI_MAX_D : MIPSI_MIN_D, dest, left, right);
+#endif
+#endif
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg right, left = ra_alloc2(as, ir, RSET_GPR);
+    right = (left >> 8); left &= 255;
+    if (left == right) {
+      if (dest != left) emit_move(as, dest, left);
+    } else {
+#if !LJ_TARGET_MIPSR6
+      if (dest == left) {
+	emit_dst(as, MIPSI_MOVN, dest, right, RID_TMP);
+      } else {
+	emit_dst(as, MIPSI_MOVZ, dest, left, RID_TMP);
+	if (dest != right) emit_move(as, dest, right);
+      }
+#else
+      emit_dst(as, MIPSI_OR, dest, dest, RID_TMP);
+      if (dest != right) {
+	emit_dst(as, MIPSI_SELNEZ, RID_TMP, right, RID_TMP);
+	emit_dst(as, MIPSI_SELEQZ, dest, left, RID_TMP);
+      } else {
+	emit_dst(as, MIPSI_SELEQZ, RID_TMP, left, RID_TMP);
+	emit_dst(as, MIPSI_SELNEZ, dest, right, RID_TMP);
+      }
+#endif
+      emit_dst(as, MIPSI_SLT, RID_TMP,
+	       ismax ? left : right, ismax ? right : left);
+    }
+  }
+}
+
+#define asm_min(as, ir)		asm_min_max(as, ir, 0)
+#define asm_max(as, ir)		asm_min_max(as, ir, 1)
+
+/* -- Comparisons --------------------------------------------------------- */
+
+#if LJ_SOFTFP
+/* SFP comparisons. */
+static void asm_sfpcomp(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_softfp_cmp];
+  RegSet drop = RSET_SCRATCH;
+  Reg r;
+#if LJ_64
+  IRRef args[2];
+  args[0] = ir->op1;
+  args[1] = ir->op2;
+#else
+  IRRef args[4];
+  args[LJ_LE ? 0 : 1] = ir->op1; args[LJ_LE ? 1 : 0] = (ir+1)->op1;
+  args[LJ_LE ? 2 : 3] = ir->op2; args[LJ_LE ? 3 : 2] = (ir+1)->op2;
+#endif
+
+  for (r = REGARG_FIRSTGPR; r <= REGARG_FIRSTGPR+(LJ_64?1:3); r++) {
+    if (!rset_test(as->freeset, r) &&
+	regcost_ref(as->cost[r]) == args[r-REGARG_FIRSTGPR])
+      rset_clear(drop, r);
+  }
+  ra_evictset(as, drop);
+
+  asm_setupresult(as, ir, ci);
+
+  switch ((IROp)ir->o) {
+  case IR_LT:
+    asm_guard(as, MIPSI_BGEZ, RID_RET, 0);
+    break;
+  case IR_ULT:
+    asm_guard(as, MIPSI_BEQ, RID_RET, RID_TMP);
+    emit_loadi(as, RID_TMP, 1);
+    asm_guard(as, MIPSI_BEQ, RID_RET, RID_ZERO);
+    break;
+  case IR_GE:
+    asm_guard(as, MIPSI_BEQ, RID_RET, RID_TMP);
+    emit_loadi(as, RID_TMP, 2);
+    asm_guard(as, MIPSI_BLTZ, RID_RET, 0);
+    break;
+  case IR_LE:
+    asm_guard(as, MIPSI_BGTZ, RID_RET, 0);
+    break;
+  case IR_GT:
+    asm_guard(as, MIPSI_BEQ, RID_RET, RID_TMP);
+    emit_loadi(as, RID_TMP, 2);
+    asm_guard(as, MIPSI_BLEZ, RID_RET, 0);
+    break;
+  case IR_UGE:
+    asm_guard(as, MIPSI_BLTZ, RID_RET, 0);
+    break;
+  case IR_ULE:
+    asm_guard(as, MIPSI_BEQ, RID_RET, RID_TMP);
+    emit_loadi(as, RID_TMP, 1);
+    break;
+  case IR_UGT: case IR_ABC:
+    asm_guard(as, MIPSI_BLEZ, RID_RET, 0);
+    break;
+  case IR_EQ: case IR_NE:
+    asm_guard(as, (ir->o & 1) ? MIPSI_BEQ : MIPSI_BNE, RID_RET, RID_ZERO);
+  default:
+    break;
+  }
+  asm_gencall(as, ci, args);
+}
+#endif
+
+static void asm_comp(ASMState *as, IRIns *ir)
+{
+  /* ORDER IR: LT GE LE GT  ULT UGE ULE UGT. */
+  IROp op = ir->o;
+  if (!LJ_SOFTFP32 && irt_isnum(ir->t)) {
+#if LJ_SOFTFP
+    asm_sfpcomp(as, ir);
+#else
+#if !LJ_TARGET_MIPSR6
+    Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+    right = (left >> 8); left &= 255;
+    asm_guard(as, (op&1) ? MIPSI_BC1T : MIPSI_BC1F, 0, 0);
+    emit_fgh(as, MIPSI_C_OLT_D + ((op&3) ^ ((op>>2)&1)), 0, left, right);
+#else
+    Reg tmp, right, left = ra_alloc2(as, ir, RSET_FPR);
+    right = (left >> 8); left &= 255;
+    tmp = ra_scratch(as, rset_exclude(rset_exclude(RSET_FPR, left), right));
+    asm_guard(as, (op&1) ? MIPSI_BC1NEZ : MIPSI_BC1EQZ, 0, (tmp&31));
+    emit_fgh(as, MIPSI_CMP_LT_D + ((op&3) ^ ((op>>2)&1)), tmp, left, right);
+#endif
+#endif
+  } else {
+    Reg right, left = ra_alloc1(as, ir->op1, RSET_GPR);
+    if (op == IR_ABC) op = IR_UGT;
+    if ((op&4) == 0 && irref_isk(ir->op2) && get_kval(as, ir->op2) == 0) {
+      MIPSIns mi = (op&2) ? ((op&1) ? MIPSI_BLEZ : MIPSI_BGTZ) :
+			    ((op&1) ? MIPSI_BLTZ : MIPSI_BGEZ);
+      asm_guard(as, mi, left, 0);
+    } else {
+      if (irref_isk(ir->op2)) {
+	intptr_t k = get_kval(as, ir->op2);
+	if ((op&2)) k++;
+	if (checki16(k)) {
+	  asm_guard(as, (op&1) ? MIPSI_BNE : MIPSI_BEQ, RID_TMP, RID_ZERO);
+	  emit_tsi(as, (op&4) ? MIPSI_SLTIU : MIPSI_SLTI,
+		   RID_TMP, left, k);
+	  return;
+	}
+      }
+      right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+      asm_guard(as, ((op^(op>>1))&1) ? MIPSI_BNE : MIPSI_BEQ, RID_TMP, RID_ZERO);
+      emit_dst(as, (op&4) ? MIPSI_SLTU : MIPSI_SLT,
+	       RID_TMP, (op&2) ? right : left, (op&2) ? left : right);
+    }
+  }
+}
+
+static void asm_equal(ASMState *as, IRIns *ir)
+{
+  Reg right, left = ra_alloc2(as, ir, (!LJ_SOFTFP && irt_isnum(ir->t)) ?
+				       RSET_FPR : RSET_GPR);
+  right = (left >> 8); left &= 255;
+  if (!LJ_SOFTFP32 && irt_isnum(ir->t)) {
+#if LJ_SOFTFP
+    asm_sfpcomp(as, ir);
+#elif !LJ_TARGET_MIPSR6
+    asm_guard(as, (ir->o & 1) ? MIPSI_BC1T : MIPSI_BC1F, 0, 0);
+    emit_fgh(as, MIPSI_C_EQ_D, 0, left, right);
+#else
+    Reg tmp = ra_scratch(as, rset_exclude(rset_exclude(RSET_FPR, left), right));
+    asm_guard(as, (ir->o & 1) ? MIPSI_BC1NEZ : MIPSI_BC1EQZ, 0, (tmp&31));
+    emit_fgh(as, MIPSI_CMP_EQ_D, tmp, left, right);
+#endif
+  } else {
+    asm_guard(as, (ir->o & 1) ? MIPSI_BEQ : MIPSI_BNE, left, right);
+  }
+}
+
+#if LJ_32 && LJ_HASFFI
+/* 64 bit integer comparisons. */
+static void asm_comp64(ASMState *as, IRIns *ir)
+{
+  /* ORDER IR: LT GE LE GT  ULT UGE ULE UGT. */
+  IROp op = (ir-1)->o;
+  MCLabel l_end;
+  Reg rightlo, leftlo, righthi, lefthi = ra_alloc2(as, ir, RSET_GPR);
+  righthi = (lefthi >> 8); lefthi &= 255;
+  leftlo = ra_alloc2(as, ir-1,
+		     rset_exclude(rset_exclude(RSET_GPR, lefthi), righthi));
+  rightlo = (leftlo >> 8); leftlo &= 255;
+  asm_guard(as, ((op^(op>>1))&1) ? MIPSI_BNE : MIPSI_BEQ, RID_TMP, RID_ZERO);
+  l_end = emit_label(as);
+  if (lefthi != righthi)
+    emit_dst(as, (op&4) ? MIPSI_SLTU : MIPSI_SLT, RID_TMP,
+	     (op&2) ? righthi : lefthi, (op&2) ? lefthi : righthi);
+  emit_dst(as, MIPSI_SLTU, RID_TMP,
+	   (op&2) ? rightlo : leftlo, (op&2) ? leftlo : rightlo);
+  if (lefthi != righthi)
+    emit_branch(as, MIPSI_BEQ, lefthi, righthi, l_end);
+}
+
+static void asm_comp64eq(ASMState *as, IRIns *ir)
+{
+  Reg tmp, right, left = ra_alloc2(as, ir, RSET_GPR);
+  right = (left >> 8); left &= 255;
+  asm_guard(as, ((ir-1)->o & 1) ? MIPSI_BEQ : MIPSI_BNE, RID_TMP, RID_ZERO);
+  tmp = ra_scratch(as, rset_exclude(rset_exclude(RSET_GPR, left), right));
+  emit_dst(as, MIPSI_OR, RID_TMP, RID_TMP, tmp);
+  emit_dst(as, MIPSI_XOR, tmp, left, right);
+  left = ra_alloc2(as, ir-1, RSET_GPR);
+  right = (left >> 8); left &= 255;
+  emit_dst(as, MIPSI_XOR, RID_TMP, left, right);
+}
+#endif
+
+/* -- Split register ops -------------------------------------------------- */
+
+/* Hiword op of a split 32/32 or 64/64 bit op. Previous op is the loword op. */
+static void asm_hiop(ASMState *as, IRIns *ir)
+{
+  /* HIOP is marked as a store because it needs its own DCE logic. */
+  int uselo = ra_used(ir-1), usehi = ra_used(ir);  /* Loword/hiword used? */
+  if (LJ_UNLIKELY(!(as->flags & JIT_F_OPT_DCE))) uselo = usehi = 1;
+#if LJ_32 && (LJ_HASFFI || LJ_SOFTFP)
+  if ((ir-1)->o == IR_CONV) {  /* Conversions to/from 64 bit. */
+    as->curins--;  /* Always skip the CONV. */
+#if LJ_HASFFI && !LJ_SOFTFP
+    if (usehi || uselo)
+      asm_conv64(as, ir);
+    return;
+#endif
+  } else if ((ir-1)->o < IR_EQ) {  /* 64 bit integer comparisons. ORDER IR. */
+    as->curins--;  /* Always skip the loword comparison. */
+#if LJ_SOFTFP
+    if (!irt_isint(ir->t)) {
+      asm_sfpcomp(as, ir-1);
+      return;
+    }
+#endif
+#if LJ_HASFFI
+    asm_comp64(as, ir);
+#endif
+    return;
+  } else if ((ir-1)->o <= IR_NE) {  /* 64 bit integer comparisons. ORDER IR. */
+    as->curins--;  /* Always skip the loword comparison. */
+#if LJ_SOFTFP
+    if (!irt_isint(ir->t)) {
+      asm_sfpcomp(as, ir-1);
+      return;
+    }
+#endif
+#if LJ_HASFFI
+    asm_comp64eq(as, ir);
+#endif
+    return;
+#if LJ_SOFTFP
+  } else if ((ir-1)->o == IR_MIN || (ir-1)->o == IR_MAX) {
+      as->curins--;  /* Always skip the loword min/max. */
+    if (uselo || usehi)
+      asm_sfpmin_max(as, ir-1);
+    return;
+#endif
+  } else if ((ir-1)->o == IR_XSTORE) {
+    as->curins--;  /* Handle both stores here. */
+    if ((ir-1)->r != RID_SINK) {
+      asm_xstore_(as, ir, LJ_LE ? 4 : 0);
+      asm_xstore_(as, ir-1, LJ_LE ? 0 : 4);
+    }
+    return;
+  }
+#endif
+  if (!usehi) return;  /* Skip unused hiword op for all remaining ops. */
+  switch ((ir-1)->o) {
+#if LJ_32 && LJ_HASFFI
+  case IR_ADD: as->curins--; asm_add64(as, ir); break;
+  case IR_SUB: as->curins--; asm_sub64(as, ir); break;
+  case IR_NEG: as->curins--; asm_neg64(as, ir); break;
+  case IR_CNEWI:
+    /* Nothing to do here. Handled by lo op itself. */
+    break;
+#endif
+#if LJ_32 && LJ_SOFTFP
+  case IR_SLOAD: case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+  case IR_STRTO:
+    if (!uselo)
+      ra_allocref(as, ir->op1, RSET_GPR);  /* Mark lo op as used. */
+    break;
+  case IR_ASTORE: case IR_HSTORE: case IR_USTORE: case IR_TOSTR: case IR_TMPREF:
+    /* Nothing to do here. Handled by lo op itself. */
+    break;
+#endif
+  case IR_CALLN: case IR_CALLL: case IR_CALLS: case IR_CALLXS:
+    if (!uselo)
+      ra_allocref(as, ir->op1, RID2RSET(RID_RETLO));  /* Mark lo op as used. */
+    break;
+  default: lj_assertA(0, "bad HIOP for op %d", (ir-1)->o); break;
+  }
+}
+
+/* -- Profiling ----------------------------------------------------------- */
+
+static void asm_prof(ASMState *as, IRIns *ir)
+{
+  UNUSED(ir);
+  asm_guard(as, MIPSI_BNE, RID_TMP, RID_ZERO);
+  emit_tsi(as, MIPSI_ANDI, RID_TMP, RID_TMP, HOOK_PROFILE);
+  emit_lsglptr(as, MIPSI_LBU, RID_TMP,
+	       (int32_t)offsetof(global_State, hookmask));
+}
+
+/* -- Stack handling ------------------------------------------------------ */
+
+/* Check Lua stack size for overflow. Use exit handler as fallback. */
+static void asm_stack_check(ASMState *as, BCReg topslot,
+			    IRIns *irp, RegSet allow, ExitNo exitno)
+{
+  /* Try to get an unused temp. register, otherwise spill/restore RID_RET*. */
+  Reg tmp, pbase = irp ? (ra_hasreg(irp->r) ? irp->r : RID_TMP) : RID_BASE;
+  ExitNo oldsnap = as->snapno;
+  rset_clear(allow, pbase);
+#if LJ_32
+  tmp = allow ? rset_pickbot(allow) :
+		(pbase == RID_RETHI ? RID_RETLO : RID_RETHI);
+#else
+  tmp = allow ? rset_pickbot(allow) : RID_RET;
+#endif
+  as->snapno = exitno;
+  asm_guard(as, MIPSI_BNE, RID_TMP, RID_ZERO);
+  as->snapno = oldsnap;
+  if (allow == RSET_EMPTY)  /* Restore temp. register. */
+    emit_tsi(as, MIPSI_AL, tmp, RID_SP, 0);
+  else
+    ra_modified(as, tmp);
+  emit_tsi(as, MIPSI_SLTIU, RID_TMP, RID_TMP, (int32_t)(8*topslot));
+  emit_dst(as, MIPSI_ASUBU, RID_TMP, tmp, pbase);
+  emit_tsi(as, MIPSI_AL, tmp, tmp, offsetof(lua_State, maxstack));
+  if (pbase == RID_TMP)
+    emit_getgl(as, RID_TMP, jit_base);
+  emit_getgl(as, tmp, cur_L);
+  if (allow == RSET_EMPTY)  /* Spill temp. register. */
+    emit_tsi(as, MIPSI_AS, tmp, RID_SP, 0);
+}
+
+/* Restore Lua stack from on-trace state. */
+static void asm_stack_restore(ASMState *as, SnapShot *snap)
+{
+  SnapEntry *map = &as->T->snapmap[snap->mapofs];
+#if LJ_32 || defined(LUA_USE_ASSERT)
+  SnapEntry *flinks = &as->T->snapmap[snap_nextofs(as->T, snap)-1-LJ_FR2];
+#endif
+  MSize n, nent = snap->nent;
+  /* Store the value of all modified slots to the Lua stack. */
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    BCReg s = snap_slot(sn);
+    int32_t ofs = 8*((int32_t)s-1-LJ_FR2);
+    IRRef ref = snap_ref(sn);
+    IRIns *ir = IR(ref);
+    if ((sn & SNAP_NORESTORE))
+      continue;
+    if (irt_isnum(ir->t)) {
+#if LJ_SOFTFP32
+      Reg tmp;
+      RegSet allow = rset_exclude(RSET_GPR, RID_BASE);
+      /* LJ_SOFTFP: must be a number constant. */
+      lj_assertA(irref_isk(ref), "unsplit FP op");
+      tmp = ra_allock(as, (int32_t)ir_knum(ir)->u32.lo, allow);
+      emit_tsi(as, MIPSI_SW, tmp, RID_BASE, ofs+(LJ_BE?4:0));
+      if (rset_test(as->freeset, tmp+1)) allow = RID2RSET(tmp+1);
+      tmp = ra_allock(as, (int32_t)ir_knum(ir)->u32.hi, allow);
+      emit_tsi(as, MIPSI_SW, tmp, RID_BASE, ofs+(LJ_BE?0:4));
+#elif LJ_SOFTFP  /* && LJ_64 */
+      Reg src = ra_alloc1(as, ref, rset_exclude(RSET_GPR, RID_BASE));
+      emit_tsi(as, MIPSI_SD, src, RID_BASE, ofs);
+#else
+      Reg src = ra_alloc1(as, ref, RSET_FPR);
+      emit_hsi(as, MIPSI_SDC1, src, RID_BASE, ofs);
+#endif
+    } else {
+#if LJ_32
+      RegSet allow = rset_exclude(RSET_GPR, RID_BASE);
+      Reg type;
+      lj_assertA(irt_ispri(ir->t) || irt_isaddr(ir->t) || irt_isinteger(ir->t),
+		 "restore of IR type %d", irt_type(ir->t));
+      if (!irt_ispri(ir->t)) {
+	Reg src = ra_alloc1(as, ref, allow);
+	rset_clear(allow, src);
+	emit_tsi(as, MIPSI_SW, src, RID_BASE, ofs+(LJ_BE?4:0));
+      }
+      if ((sn & (SNAP_CONT|SNAP_FRAME))) {
+	if (s == 0) continue;  /* Do not overwrite link to previous frame. */
+	type = ra_allock(as, (int32_t)(*flinks--), allow);
+#if LJ_SOFTFP
+      } else if ((sn & SNAP_SOFTFPNUM)) {
+	type = ra_alloc1(as, ref+1, rset_exclude(RSET_GPR, RID_BASE));
+#endif
+      } else if ((sn & SNAP_KEYINDEX)) {
+	type = ra_allock(as, (int32_t)LJ_KEYINDEX, allow);
+      } else {
+	type = ra_allock(as, (int32_t)irt_toitype(ir->t), allow);
+      }
+      emit_tsi(as, MIPSI_SW, type, RID_BASE, ofs+(LJ_BE?0:4));
+#else
+      if ((sn & SNAP_KEYINDEX)) {
+	RegSet allow = rset_exclude(RSET_GPR, RID_BASE);
+	int64_t kki = (int64_t)LJ_KEYINDEX << 32;
+	if (irref_isk(ref)) {
+	  emit_tsi(as, MIPSI_SD,
+		   ra_allock(as, kki | (int64_t)(uint32_t)ir->i, allow),
+		   RID_BASE, ofs);
+	} else {
+	  Reg src = ra_alloc1(as, ref, allow);
+	  Reg rki = ra_allock(as, kki, rset_exclude(allow, src));
+	  emit_tsi(as, MIPSI_SD, RID_TMP, RID_BASE, ofs);
+	  emit_dst(as, MIPSI_DADDU, RID_TMP, src, rki);
+	}
+      } else {
+	asm_tvstore64(as, RID_BASE, ofs, ref);
+      }
+#endif
+    }
+    checkmclim(as);
+  }
+  lj_assertA(map + nent == flinks, "inconsistent frames in snapshot");
+}
+
+/* -- GC handling --------------------------------------------------------- */
+
+/* Marker to prevent patching the GC check exit. */
+#define MIPS_NOPATCH_GC_CHECK	MIPSI_OR
+
+/* Check GC threshold and do one or more GC steps. */
+static void asm_gc_check(ASMState *as)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_step_jit];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg tmp;
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  /* Exit trace if in GCSatomic or GCSfinalize. Avoids syncing GC objects. */
+  /* Assumes asm_snap_prep() already done. */
+  asm_guard(as, MIPSI_BNE, RID_RET, RID_ZERO);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ASMREF_TMP2;  /* MSize steps     */
+  asm_gencall(as, ci, args);
+  l_end[-3] = MIPS_NOPATCH_GC_CHECK;  /* Replace the nop after the call. */
+  emit_tsi(as, MIPSI_AADDIU, ra_releasetmp(as, ASMREF_TMP1), RID_JGL, -32768);
+  tmp = ra_releasetmp(as, ASMREF_TMP2);
+  emit_loadi(as, tmp, as->gcsteps);
+  /* Jump around GC step if GC total < GC threshold. */
+  emit_branch(as, MIPSI_BNE, RID_TMP, RID_ZERO, l_end);
+  emit_dst(as, MIPSI_SLTU, RID_TMP, RID_TMP, tmp);
+  emit_getgl(as, tmp, gc.threshold);
+  emit_getgl(as, RID_TMP, gc.total);
+  as->gcsteps = 0;
+  checkmclim(as);
+}
+
+/* -- Loop handling ------------------------------------------------------- */
+
+/* Fixup the loop branch. */
+static void asm_loop_fixup(ASMState *as)
+{
+  MCode *p = as->mctop;
+  MCode *target = as->mcp;
+  p[-1] = MIPSI_NOP;
+  if (as->loopinv) {  /* Inverted loop branch? */
+    /* asm_guard already inverted the cond branch. Only patch the target. */
+    p[-3] |= ((target-p+2) & 0x0000ffffu);
+  } else {
+    p[-2] = MIPSI_J|(((uintptr_t)target>>2)&0x03ffffffu);
+  }
+}
+
+/* Fixup the tail of the loop. */
+static void asm_loop_tail_fixup(ASMState *as)
+{
+  if (as->loopinv) as->mctop--;
+}
+
+/* -- Head of trace ------------------------------------------------------- */
+
+/* Coalesce BASE register for a root trace. */
+static void asm_head_root_base(ASMState *as)
+{
+  IRIns *ir = IR(REF_BASE);
+  Reg r = ir->r;
+  if (ra_hasreg(r)) {
+    ra_free(as, r);
+    if (rset_test(as->modset, r) || irt_ismarked(ir->t))
+      ir->r = RID_INIT;  /* No inheritance for modified BASE register. */
+    if (r != RID_BASE)
+      emit_move(as, r, RID_BASE);
+  }
+}
+
+/* Coalesce BASE register for a side trace. */
+static RegSet asm_head_side_base(ASMState *as, IRIns *irp, RegSet allow)
+{
+  IRIns *ir = IR(REF_BASE);
+  Reg r = ir->r;
+  if (ra_hasreg(r)) {
+    ra_free(as, r);
+    if (rset_test(as->modset, r) || irt_ismarked(ir->t))
+      ir->r = RID_INIT;  /* No inheritance for modified BASE register. */
+    if (irp->r == r) {
+      rset_clear(allow, r);  /* Mark same BASE register as coalesced. */
+    } else if (ra_hasreg(irp->r) && rset_test(as->freeset, irp->r)) {
+      rset_clear(allow, irp->r);
+      emit_move(as, r, irp->r);  /* Move from coalesced parent reg. */
+    } else {
+      emit_getgl(as, r, jit_base);  /* Otherwise reload BASE. */
+    }
+  }
+  return allow;
+}
+
+/* -- Tail of trace ------------------------------------------------------- */
+
+/* Fixup the tail code. */
+static void asm_tail_fixup(ASMState *as, TraceNo lnk)
+{
+  MCode *target = lnk ? traceref(as->J,lnk)->mcode : (MCode *)lj_vm_exit_interp;
+  int32_t spadj = as->T->spadjust;
+  MCode *p = as->mctop-1;
+  *p = spadj ? (MIPSI_AADDIU|MIPSF_T(RID_SP)|MIPSF_S(RID_SP)|spadj) : MIPSI_NOP;
+  p[-1] = MIPSI_J|(((uintptr_t)target>>2)&0x03ffffffu);
+}
+
+/* Prepare tail of code. */
+static void asm_tail_prep(ASMState *as)
+{
+  as->mcp = as->mctop-2;  /* Leave room for branch plus nop or stack adj. */
+  as->invmcp = as->loopref ? as->mcp : NULL;
+}
+
+/* -- Trace setup --------------------------------------------------------- */
+
+/* Ensure there are enough stack slots for call arguments. */
+static Reg asm_setup_call_slots(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  uint32_t i, nargs = CCI_XNARGS(ci);
+#if LJ_32
+  int nslots = 4, ngpr = REGARG_NUMGPR, nfpr = REGARG_NUMFPR;
+#else
+  int nslots = 0, ngpr = REGARG_NUMGPR;
+#endif
+  asm_collectargs(as, ir, ci, args);
+  for (i = 0; i < nargs; i++) {
+#if LJ_32
+    if (!LJ_SOFTFP && args[i] && irt_isfp(IR(args[i])->t) &&
+	nfpr > 0 && !(ci->flags & CCI_VARARG)) {
+      nfpr--;
+      ngpr -= irt_isnum(IR(args[i])->t) ? 2 : 1;
+    } else if (!LJ_SOFTFP && args[i] && irt_isnum(IR(args[i])->t)) {
+      nfpr = 0;
+      ngpr = ngpr & ~1;
+      if (ngpr > 0) ngpr -= 2; else nslots = (nslots+3) & ~1;
+    } else {
+      nfpr = 0;
+      if (ngpr > 0) ngpr--; else nslots++;
+    }
+#else
+    if (ngpr > 0) ngpr--; else nslots += 2;
+#endif
+  }
+  if (nslots > as->evenspill)  /* Leave room for args in stack slots. */
+    as->evenspill = nslots;
+  return irt_isfp(ir->t) ? REGSP_HINT(RID_FPRET) : REGSP_HINT(RID_RET);
+}
+
+static void asm_setup_target(ASMState *as)
+{
+  asm_sparejump_setup(as);
+  asm_exitstub_setup(as);
+}
+
+/* -- Trace patching ------------------------------------------------------ */
+
+/* Patch exit jumps of existing machine code to a new target. */
+void lj_asm_patchexit(jit_State *J, GCtrace *T, ExitNo exitno, MCode *target)
+{
+  MCode *p = T->mcode;
+  MCode *pe = (MCode *)((char *)p + T->szmcode);
+  MCode *px = exitstub_trace_addr(T, exitno);
+  MCode *cstart = NULL, *cstop = NULL;
+  MCode *mcarea = lj_mcode_patch(J, p, 0);
+  MCode exitload = MIPSI_LI | MIPSF_T(RID_TMP) | exitno;
+  MCode tjump = MIPSI_J|(((uintptr_t)target>>2)&0x03ffffffu);
+  for (p++; p < pe; p++) {
+    if (*p == exitload) {  /* Look for load of exit number. */
+      /* Look for exitstub branch. Yes, this covers all used branch variants. */
+      if (((p[-1] ^ (px-p)) & 0xffffu) == 0 &&
+	  ((p[-1] & 0xf0000000u) == MIPSI_BEQ ||
+	   (p[-1] & 0xfc1e0000u) == MIPSI_BLTZ ||
+#if !LJ_TARGET_MIPSR6
+	   (p[-1] & 0xffe00000u) == MIPSI_BC1F
+#else
+	   (p[-1] & 0xff600000u) == MIPSI_BC1EQZ
+#endif
+	  ) && p[-2] != MIPS_NOPATCH_GC_CHECK) {
+	ptrdiff_t delta = target - p;
+	if (((delta + 0x8000) >> 16) == 0) {  /* Patch in-range branch. */
+	patchbranch:
+	  p[-1] = (p[-1] & 0xffff0000u) | (delta & 0xffffu);
+	  *p = MIPSI_NOP;  /* Replace the load of the exit number. */
+	  cstop = p+1;
+	  if (!cstart) cstart = p-1;
+	} else {  /* Branch out of range. Use spare jump slot in mcarea. */
+	  MCode *mcjump = asm_sparejump_use(mcarea, tjump);
+	  if (mcjump) {
+	    lj_mcode_sync(mcjump, mcjump+1);
+	    delta = mcjump - p;
+	    if (((delta + 0x8000) >> 16) == 0) {
+	      goto patchbranch;
+	    } else {
+	      lj_assertJ(0, "spare jump out of range: -Osizemcode too big");
+	    }
+	  }
+	  /* Ignore jump slot overflow. Child trace is simply not attached. */
+	}
+      } else if (p+1 == pe) {
+	/* Patch NOP after code for inverted loop branch. Use of J is ok. */
+	lj_assertJ(p[1] == MIPSI_NOP, "expected NOP");
+	p[1] = tjump;
+	*p = MIPSI_NOP;  /* Replace the load of the exit number. */
+	cstop = p+2;
+	if (!cstart) cstart = p+1;
+      }
+    }
+  }
+  if (cstart) lj_mcode_sync(cstart, cstop);
+  lj_mcode_patch(J, mcarea, 1);
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_asm_ppc.h b/libs/luajit-cmake/luajit/src/lj_asm_ppc.h
new file mode 100644
index 0000000..546b8e5
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_asm_ppc.h
@@ -0,0 +1,2325 @@
+/*
+** PPC IR assembler (SSA IR -> machine code).
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* -- Register allocator extensions --------------------------------------- */
+
+/* Allocate a register with a hint. */
+static Reg ra_hintalloc(ASMState *as, IRRef ref, Reg hint, RegSet allow)
+{
+  Reg r = IR(ref)->r;
+  if (ra_noreg(r)) {
+    if (!ra_hashint(r) && !iscrossref(as, ref))
+      ra_sethint(IR(ref)->r, hint);  /* Propagate register hint. */
+    r = ra_allocref(as, ref, allow);
+  }
+  ra_noweak(as, r);
+  return r;
+}
+
+/* Allocate two source registers for three-operand instructions. */
+static Reg ra_alloc2(ASMState *as, IRIns *ir, RegSet allow)
+{
+  IRIns *irl = IR(ir->op1), *irr = IR(ir->op2);
+  Reg left = irl->r, right = irr->r;
+  if (ra_hasreg(left)) {
+    ra_noweak(as, left);
+    if (ra_noreg(right))
+      right = ra_allocref(as, ir->op2, rset_exclude(allow, left));
+    else
+      ra_noweak(as, right);
+  } else if (ra_hasreg(right)) {
+    ra_noweak(as, right);
+    left = ra_allocref(as, ir->op1, rset_exclude(allow, right));
+  } else if (ra_hashint(right)) {
+    right = ra_allocref(as, ir->op2, allow);
+    left = ra_alloc1(as, ir->op1, rset_exclude(allow, right));
+  } else {
+    left = ra_allocref(as, ir->op1, allow);
+    right = ra_alloc1(as, ir->op2, rset_exclude(allow, left));
+  }
+  return left | (right << 8);
+}
+
+/* -- Guard handling ------------------------------------------------------ */
+
+/* Setup exit stubs after the end of each trace. */
+static void asm_exitstub_setup(ASMState *as, ExitNo nexits)
+{
+  ExitNo i;
+  MCode *mxp = as->mctop;
+  if (mxp - (nexits + 3 + MCLIM_REDZONE) < as->mclim)
+    asm_mclimit(as);
+  /* 1: mflr r0; bl ->vm_exit_handler; li r0, traceno; bl <1; bl <1; ... */
+  for (i = nexits-1; (int32_t)i >= 0; i--)
+    *--mxp = PPCI_BL|(((-3-i)&0x00ffffffu)<<2);
+  *--mxp = PPCI_LI|PPCF_T(RID_TMP)|as->T->traceno;  /* Read by exit handler. */
+  mxp--;
+  *mxp = PPCI_BL|((((MCode *)(void *)lj_vm_exit_handler-mxp)&0x00ffffffu)<<2);
+  *--mxp = PPCI_MFLR|PPCF_T(RID_TMP);
+  as->mctop = mxp;
+}
+
+static MCode *asm_exitstub_addr(ASMState *as, ExitNo exitno)
+{
+  /* Keep this in-sync with exitstub_trace_addr(). */
+  return as->mctop + exitno + 3;
+}
+
+/* Emit conditional branch to exit for guard. */
+static void asm_guardcc(ASMState *as, PPCCC cc)
+{
+  MCode *target = asm_exitstub_addr(as, as->snapno);
+  MCode *p = as->mcp;
+  if (LJ_UNLIKELY(p == as->invmcp)) {
+    as->loopinv = 1;
+    *p = PPCI_B | (((target-p) & 0x00ffffffu) << 2);
+    emit_condbranch(as, PPCI_BC, cc^4, p);
+    return;
+  }
+  emit_condbranch(as, PPCI_BC, cc, target);
+}
+
+/* -- Operand fusion ------------------------------------------------------ */
+
+/* Limit linear search to this distance. Avoids O(n^2) behavior. */
+#define CONFLICT_SEARCH_LIM	31
+
+/* Check if there's no conflicting instruction between curins and ref. */
+static int noconflict(ASMState *as, IRRef ref, IROp conflict)
+{
+  IRIns *ir = as->ir;
+  IRRef i = as->curins;
+  if (i > ref + CONFLICT_SEARCH_LIM)
+    return 0;  /* Give up, ref is too far away. */
+  while (--i > ref)
+    if (ir[i].o == conflict)
+      return 0;  /* Conflict found. */
+  return 1;  /* Ok, no conflict. */
+}
+
+/* Fuse the array base of colocated arrays. */
+static int32_t asm_fuseabase(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (ir->o == IR_TNEW && ir->op1 <= LJ_MAX_COLOSIZE &&
+      !neverfuse(as) && noconflict(as, ref, IR_NEWREF))
+    return (int32_t)sizeof(GCtab);
+  return 0;
+}
+
+/* Indicates load/store indexed is ok. */
+#define AHUREF_LSX	((int32_t)0x80000000)
+
+/* Fuse array/hash/upvalue reference into register+offset operand. */
+static Reg asm_fuseahuref(ASMState *as, IRRef ref, int32_t *ofsp, RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  if (ra_noreg(ir->r)) {
+    if (ir->o == IR_AREF) {
+      if (mayfuse(as, ref)) {
+	if (irref_isk(ir->op2)) {
+	  IRRef tab = IR(ir->op1)->op1;
+	  int32_t ofs = asm_fuseabase(as, tab);
+	  IRRef refa = ofs ? tab : ir->op1;
+	  ofs += 8*IR(ir->op2)->i;
+	  if (checki16(ofs)) {
+	    *ofsp = ofs;
+	    return ra_alloc1(as, refa, allow);
+	  }
+	}
+	if (*ofsp == AHUREF_LSX) {
+	  Reg base = ra_alloc1(as, ir->op1, allow);
+	  Reg idx = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, base));
+	  return base | (idx << 8);
+	}
+      }
+    } else if (ir->o == IR_HREFK) {
+      if (mayfuse(as, ref)) {
+	int32_t ofs = (int32_t)(IR(ir->op2)->op2 * sizeof(Node));
+	if (checki16(ofs)) {
+	  *ofsp = ofs;
+	  return ra_alloc1(as, ir->op1, allow);
+	}
+      }
+    } else if (ir->o == IR_UREFC) {
+      if (irref_isk(ir->op1)) {
+	GCfunc *fn = ir_kfunc(IR(ir->op1));
+	int32_t ofs = i32ptr(&gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.tv);
+	int32_t jgl = (intptr_t)J2G(as->J);
+	if ((uint32_t)(ofs-jgl) < 65536) {
+	  *ofsp = ofs-jgl-32768;
+	  return RID_JGL;
+	} else {
+	  *ofsp = (int16_t)ofs;
+	  return ra_allock(as, ofs-(int16_t)ofs, allow);
+	}
+      }
+    } else if (ir->o == IR_TMPREF) {
+      *ofsp = (int32_t)(offsetof(global_State, tmptv)-32768);
+      return RID_JGL;
+    }
+  }
+  *ofsp = 0;
+  return ra_alloc1(as, ref, allow);
+}
+
+/* Fuse XLOAD/XSTORE reference into load/store operand. */
+static void asm_fusexref(ASMState *as, PPCIns pi, Reg rt, IRRef ref,
+			 RegSet allow, int32_t ofs)
+{
+  IRIns *ir = IR(ref);
+  Reg base;
+  if (ra_noreg(ir->r) && canfuse(as, ir)) {
+    if (ir->o == IR_ADD) {
+      int32_t ofs2;
+      if (irref_isk(ir->op2) && (ofs2 = ofs + IR(ir->op2)->i, checki16(ofs2))) {
+	ofs = ofs2;
+	ref = ir->op1;
+      } else if (ofs == 0) {
+	Reg right, left = ra_alloc2(as, ir, allow);
+	right = (left >> 8); left &= 255;
+	emit_fab(as, PPCI_LWZX | ((pi >> 20) & 0x780), rt, left, right);
+	return;
+      }
+    } else if (ir->o == IR_STRREF) {
+      lj_assertA(ofs == 0, "bad usage");
+      ofs = (int32_t)sizeof(GCstr);
+      if (irref_isk(ir->op2)) {
+	ofs += IR(ir->op2)->i;
+	ref = ir->op1;
+      } else if (irref_isk(ir->op1)) {
+	ofs += IR(ir->op1)->i;
+	ref = ir->op2;
+      } else {
+	/* NYI: Fuse ADD with constant. */
+	Reg tmp, right, left = ra_alloc2(as, ir, allow);
+	right = (left >> 8); left &= 255;
+	tmp = ra_scratch(as, rset_exclude(rset_exclude(allow, left), right));
+	emit_fai(as, pi, rt, tmp, ofs);
+	emit_tab(as, PPCI_ADD, tmp, left, right);
+	return;
+      }
+      if (!checki16(ofs)) {
+	Reg left = ra_alloc1(as, ref, allow);
+	Reg right = ra_allock(as, ofs, rset_exclude(allow, left));
+	emit_fab(as, PPCI_LWZX | ((pi >> 20) & 0x780), rt, left, right);
+	return;
+      }
+    }
+  }
+  base = ra_alloc1(as, ref, allow);
+  emit_fai(as, pi, rt, base, ofs);
+}
+
+/* Fuse XLOAD/XSTORE reference into indexed-only load/store operand. */
+static void asm_fusexrefx(ASMState *as, PPCIns pi, Reg rt, IRRef ref,
+			  RegSet allow)
+{
+  IRIns *ira = IR(ref);
+  Reg right, left;
+  if (canfuse(as, ira) && ira->o == IR_ADD && ra_noreg(ira->r)) {
+    left = ra_alloc2(as, ira, allow);
+    right = (left >> 8); left &= 255;
+  } else {
+    right = ra_alloc1(as, ref, allow);
+    left = RID_R0;
+  }
+  emit_tab(as, pi, rt, left, right);
+}
+
+#if !LJ_SOFTFP
+/* Fuse to multiply-add/sub instruction. */
+static int asm_fusemadd(ASMState *as, IRIns *ir, PPCIns pi, PPCIns pir)
+{
+  IRRef lref = ir->op1, rref = ir->op2;
+  IRIns *irm;
+  if (lref != rref &&
+      ((mayfuse(as, lref) && (irm = IR(lref), irm->o == IR_MUL) &&
+	ra_noreg(irm->r)) ||
+       (mayfuse(as, rref) && (irm = IR(rref), irm->o == IR_MUL) &&
+	(rref = lref, pi = pir, ra_noreg(irm->r))))) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    Reg add = ra_alloc1(as, rref, RSET_FPR);
+    Reg right, left = ra_alloc2(as, irm, rset_exclude(RSET_FPR, add));
+    right = (left >> 8); left &= 255;
+    emit_facb(as, pi, dest, left, right, add);
+    return 1;
+  }
+  return 0;
+}
+#endif
+
+/* -- Calls --------------------------------------------------------------- */
+
+/* Generate a call to a C function. */
+static void asm_gencall(ASMState *as, const CCallInfo *ci, IRRef *args)
+{
+  uint32_t n, nargs = CCI_XNARGS(ci);
+  int32_t ofs = 8;
+  Reg gpr = REGARG_FIRSTGPR;
+#if !LJ_SOFTFP
+  Reg fpr = REGARG_FIRSTFPR;
+#endif
+  if ((void *)ci->func)
+    emit_call(as, (void *)ci->func);
+  for (n = 0; n < nargs; n++) {  /* Setup args. */
+    IRRef ref = args[n];
+    if (ref) {
+      IRIns *ir = IR(ref);
+#if !LJ_SOFTFP
+      if (irt_isfp(ir->t)) {
+	if (fpr <= REGARG_LASTFPR) {
+	  lj_assertA(rset_test(as->freeset, fpr),
+		     "reg %d not free", fpr);  /* Already evicted. */
+	  ra_leftov(as, fpr, ref);
+	  fpr++;
+	} else {
+	  Reg r = ra_alloc1(as, ref, RSET_FPR);
+	  if (irt_isnum(ir->t)) ofs = (ofs + 4) & ~4;
+	  emit_spstore(as, ir, r, ofs);
+	  ofs += irt_isnum(ir->t) ? 8 : 4;
+	}
+      } else
+#endif
+      {
+	if (gpr <= REGARG_LASTGPR) {
+	  lj_assertA(rset_test(as->freeset, gpr),
+		     "reg %d not free", gpr);  /* Already evicted. */
+	  ra_leftov(as, gpr, ref);
+	  gpr++;
+	} else {
+	  Reg r = ra_alloc1(as, ref, RSET_GPR);
+	  emit_spstore(as, ir, r, ofs);
+	  ofs += 4;
+	}
+      }
+    } else {
+      if (gpr <= REGARG_LASTGPR)
+	gpr++;
+      else
+	ofs += 4;
+    }
+    checkmclim(as);
+  }
+#if !LJ_SOFTFP
+  if ((ci->flags & CCI_VARARG))  /* Vararg calls need to know about FPR use. */
+    emit_tab(as, fpr == REGARG_FIRSTFPR ? PPCI_CRXOR : PPCI_CREQV, 6, 6, 6);
+#endif
+}
+
+/* Setup result reg/sp for call. Evict scratch regs. */
+static void asm_setupresult(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  RegSet drop = RSET_SCRATCH;
+  int hiop = ((ir+1)->o == IR_HIOP && !irt_isnil((ir+1)->t));
+#if !LJ_SOFTFP
+  if ((ci->flags & CCI_NOFPRCLOBBER))
+    drop &= ~RSET_FPR;
+#endif
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r);  /* Dest reg handled below. */
+  if (hiop && ra_hasreg((ir+1)->r))
+    rset_clear(drop, (ir+1)->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop);  /* Evictions must be performed first. */
+  if (ra_used(ir)) {
+    lj_assertA(!irt_ispri(ir->t), "PRI dest");
+    if (!LJ_SOFTFP && irt_isfp(ir->t)) {
+      if ((ci->flags & CCI_CASTU64)) {
+	/* Use spill slot or temp slots. */
+	int32_t ofs = ir->s ? sps_scale(ir->s) : SPOFS_TMP;
+	Reg dest = ir->r;
+	if (ra_hasreg(dest)) {
+	  ra_free(as, dest);
+	  ra_modified(as, dest);
+	  emit_fai(as, PPCI_LFD, dest, RID_SP, ofs);
+	}
+	emit_tai(as, PPCI_STW, RID_RETHI, RID_SP, ofs);
+	emit_tai(as, PPCI_STW, RID_RETLO, RID_SP, ofs+4);
+      } else {
+	ra_destreg(as, ir, RID_FPRET);
+      }
+    } else if (hiop) {
+      ra_destpair(as, ir);
+    } else {
+      ra_destreg(as, ir, RID_RET);
+    }
+  }
+}
+
+static void asm_callx(ASMState *as, IRIns *ir)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  CCallInfo ci;
+  IRRef func;
+  IRIns *irf;
+  ci.flags = asm_callx_flags(as, ir);
+  asm_collectargs(as, ir, &ci, args);
+  asm_setupresult(as, ir, &ci);
+  func = ir->op2; irf = IR(func);
+  if (irf->o == IR_CARG) { func = irf->op1; irf = IR(func); }
+  if (irref_isk(func)) {  /* Call to constant address. */
+    ci.func = (ASMFunction)(void *)(intptr_t)(irf->i);
+  } else {  /* Need a non-argument register for indirect calls. */
+    RegSet allow = RSET_GPR & ~RSET_RANGE(RID_R0, REGARG_LASTGPR+1);
+    Reg freg = ra_alloc1(as, func, allow);
+    *--as->mcp = PPCI_BCTRL;
+    *--as->mcp = PPCI_MTCTR | PPCF_T(freg);
+    ci.func = (ASMFunction)(void *)0;
+  }
+  asm_gencall(as, &ci, args);
+}
+
+/* -- Returns ------------------------------------------------------------- */
+
+/* Return to lower frame. Guard that it goes to the right spot. */
+static void asm_retf(ASMState *as, IRIns *ir)
+{
+  Reg base = ra_alloc1(as, REF_BASE, RSET_GPR);
+  void *pc = ir_kptr(IR(ir->op2));
+  int32_t delta = 1+LJ_FR2+bc_a(*((const BCIns *)pc - 1));
+  as->topslot -= (BCReg)delta;
+  if ((int32_t)as->topslot < 0) as->topslot = 0;
+  irt_setmark(IR(REF_BASE)->t);  /* Children must not coalesce with BASE reg. */
+  emit_setgl(as, base, jit_base);
+  emit_addptr(as, base, -8*delta);
+  asm_guardcc(as, CC_NE);
+  emit_ab(as, PPCI_CMPW, RID_TMP,
+	  ra_allock(as, i32ptr(pc), rset_exclude(RSET_GPR, base)));
+  emit_tai(as, PPCI_LWZ, RID_TMP, base, -8);
+}
+
+/* -- Buffer operations --------------------------------------------------- */
+
+#if LJ_HASBUFFER
+static void asm_bufhdr_write(ASMState *as, Reg sb)
+{
+  Reg tmp = ra_scratch(as, rset_exclude(RSET_GPR, sb));
+  IRIns irgc;
+  irgc.ot = IRT(0, IRT_PGC);  /* GC type. */
+  emit_storeofs(as, &irgc, RID_TMP, sb, offsetof(SBuf, L));
+  emit_rot(as, PPCI_RLWIMI, RID_TMP, tmp, 0, 31-lj_fls(SBUF_MASK_FLAG), 31);
+  emit_getgl(as, RID_TMP, cur_L);
+  emit_loadofs(as, &irgc, tmp, sb, offsetof(SBuf, L));
+}
+#endif
+
+/* -- Type conversions ---------------------------------------------------- */
+
+#if !LJ_SOFTFP
+static void asm_tointg(ASMState *as, IRIns *ir, Reg left)
+{
+  RegSet allow = RSET_FPR;
+  Reg tmp = ra_scratch(as, rset_clear(allow, left));
+  Reg fbias = ra_scratch(as, rset_clear(allow, tmp));
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg hibias = ra_allock(as, 0x43300000, rset_exclude(RSET_GPR, dest));
+  asm_guardcc(as, CC_NE);
+  emit_fab(as, PPCI_FCMPU, 0, tmp, left);
+  emit_fab(as, PPCI_FSUB, tmp, tmp, fbias);
+  emit_fai(as, PPCI_LFD, tmp, RID_SP, SPOFS_TMP);
+  emit_tai(as, PPCI_STW, RID_TMP, RID_SP, SPOFS_TMPLO);
+  emit_tai(as, PPCI_STW, hibias, RID_SP, SPOFS_TMPHI);
+  emit_asi(as, PPCI_XORIS, RID_TMP, dest, 0x8000);
+  emit_tai(as, PPCI_LWZ, dest, RID_SP, SPOFS_TMPLO);
+  emit_lsptr(as, PPCI_LFS, (fbias & 31),
+	     (void *)&as->J->k32[LJ_K32_2P52_2P31], RSET_GPR);
+  emit_fai(as, PPCI_STFD, tmp, RID_SP, SPOFS_TMP);
+  emit_fb(as, PPCI_FCTIWZ, tmp, left);
+}
+
+static void asm_tobit(ASMState *as, IRIns *ir)
+{
+  RegSet allow = RSET_FPR;
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, allow);
+  Reg right = ra_alloc1(as, ir->op2, rset_clear(allow, left));
+  Reg tmp = ra_scratch(as, rset_clear(allow, right));
+  emit_tai(as, PPCI_LWZ, dest, RID_SP, SPOFS_TMPLO);
+  emit_fai(as, PPCI_STFD, tmp, RID_SP, SPOFS_TMP);
+  emit_fab(as, PPCI_FADD, tmp, left, right);
+}
+#endif
+
+static void asm_conv(ASMState *as, IRIns *ir)
+{
+  IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+#if !LJ_SOFTFP
+  int stfp = (st == IRT_NUM || st == IRT_FLOAT);
+#endif
+  IRRef lref = ir->op1;
+  /* 64 bit integer conversions are handled by SPLIT. */
+  lj_assertA(!(irt_isint64(ir->t) || (st == IRT_I64 || st == IRT_U64)),
+	     "IR %04d has unsplit 64 bit type",
+	     (int)(ir - as->ir) - REF_BIAS);
+#if LJ_SOFTFP
+  /* FP conversions are handled by SPLIT. */
+  lj_assertA(!irt_isfp(ir->t) && !(st == IRT_NUM || st == IRT_FLOAT),
+	     "IR %04d has FP type",
+	     (int)(ir - as->ir) - REF_BIAS);
+  /* Can't check for same types: SPLIT uses CONV int.int + BXOR for sfp NEG. */
+#else
+  lj_assertA(irt_type(ir->t) != st, "inconsistent types for CONV");
+  if (irt_isfp(ir->t)) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    if (stfp) {  /* FP to FP conversion. */
+      if (st == IRT_NUM)  /* double -> float conversion. */
+	emit_fb(as, PPCI_FRSP, dest, ra_alloc1(as, lref, RSET_FPR));
+      else  /* float -> double conversion is a no-op on PPC. */
+	ra_leftov(as, dest, lref);  /* Do nothing, but may need to move regs. */
+    } else {  /* Integer to FP conversion. */
+      /* IRT_INT: Flip hibit, bias with 2^52, subtract 2^52+2^31. */
+      /* IRT_U32: Bias with 2^52, subtract 2^52. */
+      RegSet allow = RSET_GPR;
+      Reg left = ra_alloc1(as, lref, allow);
+      Reg hibias = ra_allock(as, 0x43300000, rset_clear(allow, left));
+      Reg fbias = ra_scratch(as, rset_exclude(RSET_FPR, dest));
+      if (irt_isfloat(ir->t)) emit_fb(as, PPCI_FRSP, dest, dest);
+      emit_fab(as, PPCI_FSUB, dest, dest, fbias);
+      emit_fai(as, PPCI_LFD, dest, RID_SP, SPOFS_TMP);
+      emit_lsptr(as, PPCI_LFS, (fbias & 31),
+		 &as->J->k32[st == IRT_U32 ? LJ_K32_2P52 : LJ_K32_2P52_2P31],
+		 rset_clear(allow, hibias));
+      emit_tai(as, PPCI_STW, st == IRT_U32 ? left : RID_TMP,
+	       RID_SP, SPOFS_TMPLO);
+      emit_tai(as, PPCI_STW, hibias, RID_SP, SPOFS_TMPHI);
+      if (st != IRT_U32) emit_asi(as, PPCI_XORIS, RID_TMP, left, 0x8000);
+    }
+  } else if (stfp) {  /* FP to integer conversion. */
+    if (irt_isguard(ir->t)) {
+      /* Checked conversions are only supported from number to int. */
+      lj_assertA(irt_isint(ir->t) && st == IRT_NUM,
+		 "bad type for checked CONV");
+      asm_tointg(as, ir, ra_alloc1(as, lref, RSET_FPR));
+    } else {
+      Reg dest = ra_dest(as, ir, RSET_GPR);
+      Reg left = ra_alloc1(as, lref, RSET_FPR);
+      Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, left));
+      if (irt_isu32(ir->t)) {
+	/* Convert both x and x-2^31 to int and merge results. */
+	Reg tmpi = ra_scratch(as, rset_exclude(RSET_GPR, dest));
+	emit_asb(as, PPCI_OR, dest, dest, tmpi);  /* Select with mask idiom. */
+	emit_asb(as, PPCI_AND, tmpi, tmpi, RID_TMP);
+	emit_asb(as, PPCI_ANDC, dest, dest, RID_TMP);
+	emit_tai(as, PPCI_LWZ, tmpi, RID_SP, SPOFS_TMPLO);  /* tmp = (int)(x) */
+	emit_tai(as, PPCI_ADDIS, dest, dest, 0x8000);  /* dest += 2^31 */
+	emit_asb(as, PPCI_SRAWI, RID_TMP, dest, 31);  /* mask = -(dest < 0) */
+	emit_fai(as, PPCI_STFD, tmp, RID_SP, SPOFS_TMP);
+	emit_tai(as, PPCI_LWZ, dest,
+		 RID_SP, SPOFS_TMPLO);  /* dest = (int)(x-2^31) */
+	emit_fb(as, PPCI_FCTIWZ, tmp, left);
+	emit_fai(as, PPCI_STFD, tmp, RID_SP, SPOFS_TMP);
+	emit_fb(as, PPCI_FCTIWZ, tmp, tmp);
+	emit_fab(as, PPCI_FSUB, tmp, left, tmp);
+	emit_lsptr(as, PPCI_LFS, (tmp & 31),
+		   (void *)&as->J->k32[LJ_K32_2P31], RSET_GPR);
+      } else {
+	emit_tai(as, PPCI_LWZ, dest, RID_SP, SPOFS_TMPLO);
+	emit_fai(as, PPCI_STFD, tmp, RID_SP, SPOFS_TMP);
+	emit_fb(as, PPCI_FCTIWZ, tmp, left);
+      }
+    }
+  } else
+#endif
+  {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    if (st >= IRT_I8 && st <= IRT_U16) {  /* Extend to 32 bit integer. */
+      Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+      lj_assertA(irt_isint(ir->t) || irt_isu32(ir->t), "bad type for CONV EXT");
+      if ((ir->op2 & IRCONV_SEXT))
+	emit_as(as, st == IRT_I8 ? PPCI_EXTSB : PPCI_EXTSH, dest, left);
+      else
+	emit_rot(as, PPCI_RLWINM, dest, left, 0, st == IRT_U8 ? 24 : 16, 31);
+    } else {  /* 32/64 bit integer conversions. */
+      /* Only need to handle 32/32 bit no-op (cast) on 32 bit archs. */
+      ra_leftov(as, dest, lref);  /* Do nothing, but may need to move regs. */
+    }
+  }
+}
+
+static void asm_strto(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_strscan_num];
+  IRRef args[2];
+  int32_t ofs = SPOFS_TMP;
+#if LJ_SOFTFP
+  ra_evictset(as, RSET_SCRATCH);
+  if (ra_used(ir)) {
+    if (ra_hasspill(ir->s) && ra_hasspill((ir+1)->s) &&
+	(ir->s & 1) == LJ_BE && (ir->s ^ 1) == (ir+1)->s) {
+      int i;
+      for (i = 0; i < 2; i++) {
+	Reg r = (ir+i)->r;
+	if (ra_hasreg(r)) {
+	  ra_free(as, r);
+	  ra_modified(as, r);
+	  emit_spload(as, ir+i, r, sps_scale((ir+i)->s));
+	}
+      }
+      ofs = sps_scale(ir->s & ~1);
+    } else {
+      Reg rhi = ra_dest(as, ir+1, RSET_GPR);
+      Reg rlo = ra_dest(as, ir, rset_exclude(RSET_GPR, rhi));
+      emit_tai(as, PPCI_LWZ, rhi, RID_SP, ofs);
+      emit_tai(as, PPCI_LWZ, rlo, RID_SP, ofs+4);
+    }
+  }
+#else
+  RegSet drop = RSET_SCRATCH;
+  if (ra_hasreg(ir->r)) rset_set(drop, ir->r);  /* Spill dest reg (if any). */
+  ra_evictset(as, drop);
+  if (ir->s) ofs = sps_scale(ir->s);
+#endif
+  asm_guardcc(as, CC_EQ);
+  emit_ai(as, PPCI_CMPWI, RID_RET, 0);  /* Test return status. */
+  args[0] = ir->op1;      /* GCstr *str */
+  args[1] = ASMREF_TMP1;  /* TValue *n  */
+  asm_gencall(as, ci, args);
+  /* Store the result to the spill slot or temp slots. */
+  emit_tai(as, PPCI_ADDI, ra_releasetmp(as, ASMREF_TMP1), RID_SP, ofs);
+}
+
+/* -- Memory references --------------------------------------------------- */
+
+/* Get pointer to TValue. */
+static void asm_tvptr(ASMState *as, Reg dest, IRRef ref, MSize mode)
+{
+  int32_t tmpofs = (int32_t)(offsetof(global_State, tmptv)-32768);
+  if ((mode & IRTMPREF_IN1)) {
+    IRIns *ir = IR(ref);
+    if (irt_isnum(ir->t)) {
+      if ((mode & IRTMPREF_OUT1)) {
+#if LJ_SOFTFP
+	lj_assertA(irref_isk(ref), "unsplit FP op");
+	emit_tai(as, PPCI_ADDI, dest, RID_JGL, tmpofs);
+	emit_setgl(as,
+		   ra_allock(as, (int32_t)ir_knum(ir)->u32.lo, RSET_GPR),
+		   tmptv.u32.lo);
+	emit_setgl(as,
+		   ra_allock(as, (int32_t)ir_knum(ir)->u32.hi, RSET_GPR),
+		   tmptv.u32.hi);
+#else
+	Reg src = ra_alloc1(as, ref, RSET_FPR);
+	emit_tai(as, PPCI_ADDI, dest, RID_JGL, tmpofs);
+	emit_fai(as, PPCI_STFD, src, RID_JGL, tmpofs);
+#endif
+      } else if (irref_isk(ref)) {
+	/* Use the number constant itself as a TValue. */
+	ra_allockreg(as, i32ptr(ir_knum(ir)), dest);
+      } else {
+#if LJ_SOFTFP
+	lj_assertA(0, "unsplit FP op");
+#else
+	/* Otherwise force a spill and use the spill slot. */
+	emit_tai(as, PPCI_ADDI, dest, RID_SP, ra_spill(as, ir));
+#endif
+      }
+    } else {
+      /* Otherwise use g->tmptv to hold the TValue. */
+      Reg type;
+      emit_tai(as, PPCI_ADDI, dest, RID_JGL, tmpofs);
+      if (!irt_ispri(ir->t)) {
+	Reg src = ra_alloc1(as, ref, RSET_GPR);
+	emit_setgl(as, src, tmptv.gcr);
+      }
+      if (LJ_SOFTFP && (ir+1)->o == IR_HIOP && !irt_isnil((ir+1)->t))
+	type = ra_alloc1(as, ref+1, RSET_GPR);
+      else
+	type = ra_allock(as, irt_toitype(ir->t), RSET_GPR);
+      emit_setgl(as, type, tmptv.it);
+    }
+  } else {
+    emit_tai(as, PPCI_ADDI, dest, RID_JGL, tmpofs);
+  }
+}
+
+static void asm_aref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg idx, base;
+  if (irref_isk(ir->op2)) {
+    IRRef tab = IR(ir->op1)->op1;
+    int32_t ofs = asm_fuseabase(as, tab);
+    IRRef refa = ofs ? tab : ir->op1;
+    ofs += 8*IR(ir->op2)->i;
+    if (checki16(ofs)) {
+      base = ra_alloc1(as, refa, RSET_GPR);
+      emit_tai(as, PPCI_ADDI, dest, base, ofs);
+      return;
+    }
+  }
+  base = ra_alloc1(as, ir->op1, RSET_GPR);
+  idx = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, base));
+  emit_tab(as, PPCI_ADD, dest, RID_TMP, base);
+  emit_slwi(as, RID_TMP, idx, 3);
+}
+
+/* Inlined hash lookup. Specialized for key type and for const keys.
+** The equivalent C code is:
+**   Node *n = hashkey(t, key);
+**   do {
+**     if (lj_obj_equal(&n->key, key)) return &n->val;
+**   } while ((n = nextnode(n)));
+**   return niltv(L);
+*/
+static void asm_href(ASMState *as, IRIns *ir, IROp merge)
+{
+  RegSet allow = RSET_GPR;
+  int destused = ra_used(ir);
+  Reg dest = ra_dest(as, ir, allow);
+  Reg tab = ra_alloc1(as, ir->op1, rset_clear(allow, dest));
+  Reg key = RID_NONE, tmp1 = RID_TMP, tmp2;
+  Reg tisnum = RID_NONE, tmpnum = RID_NONE;
+  IRRef refkey = ir->op2;
+  IRIns *irkey = IR(refkey);
+  int isk = irref_isk(refkey);
+  IRType1 kt = irkey->t;
+  uint32_t khash;
+  MCLabel l_end, l_loop, l_next;
+
+  rset_clear(allow, tab);
+#if LJ_SOFTFP
+  if (!isk) {
+    key = ra_alloc1(as, refkey, allow);
+    rset_clear(allow, key);
+    if (irkey[1].o == IR_HIOP) {
+      if (ra_hasreg((irkey+1)->r)) {
+	tmpnum = (irkey+1)->r;
+	ra_noweak(as, tmpnum);
+      } else {
+	tmpnum = ra_allocref(as, refkey+1, allow);
+      }
+      rset_clear(allow, tmpnum);
+    }
+  }
+#else
+  if (irt_isnum(kt)) {
+    key = ra_alloc1(as, refkey, RSET_FPR);
+    tmpnum = ra_scratch(as, rset_exclude(RSET_FPR, key));
+    tisnum = ra_allock(as, (int32_t)LJ_TISNUM, allow);
+    rset_clear(allow, tisnum);
+  } else if (!irt_ispri(kt)) {
+    key = ra_alloc1(as, refkey, allow);
+    rset_clear(allow, key);
+  }
+#endif
+  tmp2 = ra_scratch(as, allow);
+  rset_clear(allow, tmp2);
+
+  /* Key not found in chain: jump to exit (if merged) or load niltv. */
+  l_end = emit_label(as);
+  as->invmcp = NULL;
+  if (merge == IR_NE)
+    asm_guardcc(as, CC_EQ);
+  else if (destused)
+    emit_loada(as, dest, niltvg(J2G(as->J)));
+
+  /* Follow hash chain until the end. */
+  l_loop = --as->mcp;
+  emit_ai(as, PPCI_CMPWI, dest, 0);
+  emit_tai(as, PPCI_LWZ, dest, dest, (int32_t)offsetof(Node, next));
+  l_next = emit_label(as);
+
+  /* Type and value comparison. */
+  if (merge == IR_EQ)
+    asm_guardcc(as, CC_EQ);
+  else
+    emit_condbranch(as, PPCI_BC|PPCF_Y, CC_EQ, l_end);
+  if (!LJ_SOFTFP && irt_isnum(kt)) {
+    emit_fab(as, PPCI_FCMPU, 0, tmpnum, key);
+    emit_condbranch(as, PPCI_BC, CC_GE, l_next);
+    emit_ab(as, PPCI_CMPLW, tmp1, tisnum);
+    emit_fai(as, PPCI_LFD, tmpnum, dest, (int32_t)offsetof(Node, key.n));
+  } else {
+    if (!irt_ispri(kt)) {
+      emit_ab(as, PPCI_CMPW, tmp2, key);
+      emit_condbranch(as, PPCI_BC, CC_NE, l_next);
+    }
+    if (LJ_SOFTFP && ra_hasreg(tmpnum))
+      emit_ab(as, PPCI_CMPW, tmp1, tmpnum);
+    else
+      emit_ai(as, PPCI_CMPWI, tmp1, irt_toitype(irkey->t));
+    if (!irt_ispri(kt))
+      emit_tai(as, PPCI_LWZ, tmp2, dest, (int32_t)offsetof(Node, key.gcr));
+  }
+  emit_tai(as, PPCI_LWZ, tmp1, dest, (int32_t)offsetof(Node, key.it));
+  *l_loop = PPCI_BC | PPCF_Y | PPCF_CC(CC_NE) |
+	    (((char *)as->mcp-(char *)l_loop) & 0xffffu);
+
+  /* Load main position relative to tab->node into dest. */
+  khash = isk ? ir_khash(as, irkey) : 1;
+  if (khash == 0) {
+    emit_tai(as, PPCI_LWZ, dest, tab, (int32_t)offsetof(GCtab, node));
+  } else {
+    Reg tmphash = tmp1;
+    if (isk)
+      tmphash = ra_allock(as, khash, allow);
+    emit_tab(as, PPCI_ADD, dest, dest, tmp1);
+    emit_tai(as, PPCI_MULLI, tmp1, tmp1, sizeof(Node));
+    emit_asb(as, PPCI_AND, tmp1, tmp2, tmphash);
+    emit_tai(as, PPCI_LWZ, dest, tab, (int32_t)offsetof(GCtab, node));
+    emit_tai(as, PPCI_LWZ, tmp2, tab, (int32_t)offsetof(GCtab, hmask));
+    if (isk) {
+      /* Nothing to do. */
+    } else if (irt_isstr(kt)) {
+      emit_tai(as, PPCI_LWZ, tmp1, key, (int32_t)offsetof(GCstr, sid));
+    } else {  /* Must match with hash*() in lj_tab.c. */
+      emit_tab(as, PPCI_SUBF, tmp1, tmp2, tmp1);
+      emit_rotlwi(as, tmp2, tmp2, HASH_ROT3);
+      emit_asb(as, PPCI_XOR, tmp1, tmp1, tmp2);
+      emit_rotlwi(as, tmp1, tmp1, (HASH_ROT2+HASH_ROT1)&31);
+      emit_tab(as, PPCI_SUBF, tmp2, dest, tmp2);
+      if (LJ_SOFTFP ? (irkey[1].o == IR_HIOP) : irt_isnum(kt)) {
+#if LJ_SOFTFP
+	emit_asb(as, PPCI_XOR, tmp2, key, tmp1);
+	emit_rotlwi(as, dest, tmp1, HASH_ROT1);
+	emit_tab(as, PPCI_ADD, tmp1, tmpnum, tmpnum);
+#else
+	int32_t ofs = ra_spill(as, irkey);
+	emit_asb(as, PPCI_XOR, tmp2, tmp2, tmp1);
+	emit_rotlwi(as, dest, tmp1, HASH_ROT1);
+	emit_tab(as, PPCI_ADD, tmp1, tmp1, tmp1);
+	emit_tai(as, PPCI_LWZ, tmp2, RID_SP, ofs+4);
+	emit_tai(as, PPCI_LWZ, tmp1, RID_SP, ofs);
+#endif
+      } else {
+	emit_asb(as, PPCI_XOR, tmp2, key, tmp1);
+	emit_rotlwi(as, dest, tmp1, HASH_ROT1);
+	emit_tai(as, PPCI_ADDI, tmp1, tmp2, HASH_BIAS);
+	emit_tai(as, PPCI_ADDIS, tmp2, key, (HASH_BIAS + 32768)>>16);
+      }
+    }
+  }
+}
+
+static void asm_hrefk(ASMState *as, IRIns *ir)
+{
+  IRIns *kslot = IR(ir->op2);
+  IRIns *irkey = IR(kslot->op1);
+  int32_t ofs = (int32_t)(kslot->op2 * sizeof(Node));
+  int32_t kofs = ofs + (int32_t)offsetof(Node, key);
+  Reg dest = (ra_used(ir)||ofs > 32736) ? ra_dest(as, ir, RSET_GPR) : RID_NONE;
+  Reg node = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg key = RID_NONE, type = RID_TMP, idx = node;
+  RegSet allow = rset_exclude(RSET_GPR, node);
+  lj_assertA(ofs % sizeof(Node) == 0, "unaligned HREFK slot");
+  if (ofs > 32736) {
+    idx = dest;
+    rset_clear(allow, dest);
+    kofs = (int32_t)offsetof(Node, key);
+  } else if (ra_hasreg(dest)) {
+    emit_tai(as, PPCI_ADDI, dest, node, ofs);
+  }
+  asm_guardcc(as, CC_NE);
+  if (!irt_ispri(irkey->t)) {
+    key = ra_scratch(as, allow);
+    rset_clear(allow, key);
+  }
+  rset_clear(allow, type);
+  if (irt_isnum(irkey->t)) {
+    emit_cmpi(as, key, (int32_t)ir_knum(irkey)->u32.lo);
+    asm_guardcc(as, CC_NE);
+    emit_cmpi(as, type, (int32_t)ir_knum(irkey)->u32.hi);
+  } else {
+    if (ra_hasreg(key)) {
+      emit_cmpi(as, key, irkey->i);  /* May use RID_TMP, i.e. type. */
+      asm_guardcc(as, CC_NE);
+    }
+    emit_ai(as, PPCI_CMPWI, type, irt_toitype(irkey->t));
+  }
+  if (ra_hasreg(key)) emit_tai(as, PPCI_LWZ, key, idx, kofs+4);
+  emit_tai(as, PPCI_LWZ, type, idx, kofs);
+  if (ofs > 32736) {
+    emit_tai(as, PPCI_ADDIS, dest, dest, (ofs + 32768) >> 16);
+    emit_tai(as, PPCI_ADDI, dest, node, ofs);
+  }
+}
+
+static void asm_uref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  if (irref_isk(ir->op1)) {
+    GCfunc *fn = ir_kfunc(IR(ir->op1));
+    MRef *v = &gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.v;
+    emit_lsptr(as, PPCI_LWZ, dest, v, RSET_GPR);
+  } else {
+    Reg uv = ra_scratch(as, RSET_GPR);
+    Reg func = ra_alloc1(as, ir->op1, RSET_GPR);
+    if (ir->o == IR_UREFC) {
+      asm_guardcc(as, CC_NE);
+      emit_ai(as, PPCI_CMPWI, RID_TMP, 1);
+      emit_tai(as, PPCI_ADDI, dest, uv, (int32_t)offsetof(GCupval, tv));
+      emit_tai(as, PPCI_LBZ, RID_TMP, uv, (int32_t)offsetof(GCupval, closed));
+    } else {
+      emit_tai(as, PPCI_LWZ, dest, uv, (int32_t)offsetof(GCupval, v));
+    }
+    emit_tai(as, PPCI_LWZ, uv, func,
+	     (int32_t)offsetof(GCfuncL, uvptr) + 4*(int32_t)(ir->op2 >> 8));
+  }
+}
+
+static void asm_fref(ASMState *as, IRIns *ir)
+{
+  UNUSED(as); UNUSED(ir);
+  lj_assertA(!ra_used(ir), "unfused FREF");
+}
+
+static void asm_strref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  IRRef ref = ir->op2, refk = ir->op1;
+  int32_t ofs = (int32_t)sizeof(GCstr);
+  Reg r;
+  if (irref_isk(ref)) {
+    IRRef tmp = refk; refk = ref; ref = tmp;
+  } else if (!irref_isk(refk)) {
+    Reg right, left = ra_alloc1(as, ir->op1, RSET_GPR);
+    IRIns *irr = IR(ir->op2);
+    if (ra_hasreg(irr->r)) {
+      ra_noweak(as, irr->r);
+      right = irr->r;
+    } else if (mayfuse(as, irr->op2) &&
+	       irr->o == IR_ADD && irref_isk(irr->op2) &&
+	       checki16(ofs + IR(irr->op2)->i)) {
+      ofs += IR(irr->op2)->i;
+      right = ra_alloc1(as, irr->op1, rset_exclude(RSET_GPR, left));
+    } else {
+      right = ra_allocref(as, ir->op2, rset_exclude(RSET_GPR, left));
+    }
+    emit_tai(as, PPCI_ADDI, dest, dest, ofs);
+    emit_tab(as, PPCI_ADD, dest, left, right);
+    return;
+  }
+  r = ra_alloc1(as, ref, RSET_GPR);
+  ofs += IR(refk)->i;
+  if (checki16(ofs))
+    emit_tai(as, PPCI_ADDI, dest, r, ofs);
+  else
+    emit_tab(as, PPCI_ADD, dest, r,
+	     ra_allock(as, ofs, rset_exclude(RSET_GPR, r)));
+}
+
+/* -- Loads and stores ---------------------------------------------------- */
+
+static PPCIns asm_fxloadins(ASMState *as, IRIns *ir)
+{
+  UNUSED(as);
+  switch (irt_type(ir->t)) {
+  case IRT_I8: return PPCI_LBZ;  /* Needs sign-extension. */
+  case IRT_U8: return PPCI_LBZ;
+  case IRT_I16: return PPCI_LHA;
+  case IRT_U16: return PPCI_LHZ;
+  case IRT_NUM: lj_assertA(!LJ_SOFTFP, "unsplit FP op"); return PPCI_LFD;
+  case IRT_FLOAT: if (!LJ_SOFTFP) return PPCI_LFS;
+  default: return PPCI_LWZ;
+  }
+}
+
+static PPCIns asm_fxstoreins(ASMState *as, IRIns *ir)
+{
+  UNUSED(as);
+  switch (irt_type(ir->t)) {
+  case IRT_I8: case IRT_U8: return PPCI_STB;
+  case IRT_I16: case IRT_U16: return PPCI_STH;
+  case IRT_NUM: lj_assertA(!LJ_SOFTFP, "unsplit FP op"); return PPCI_STFD;
+  case IRT_FLOAT: if (!LJ_SOFTFP) return PPCI_STFS;
+  default: return PPCI_STW;
+  }
+}
+
+static void asm_fload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  PPCIns pi = asm_fxloadins(as, ir);
+  Reg idx;
+  int32_t ofs;
+  if (ir->op1 == REF_NIL) {  /* FLOAD from GG_State with offset. */
+    idx = RID_JGL;
+    ofs = (ir->op2 << 2) - 32768 - GG_OFS(g);
+  } else {
+    idx = ra_alloc1(as, ir->op1, RSET_GPR);
+    if (ir->op2 == IRFL_TAB_ARRAY) {
+      ofs = asm_fuseabase(as, ir->op1);
+      if (ofs) {  /* Turn the t->array load into an add for colocated arrays. */
+	emit_tai(as, PPCI_ADDI, dest, idx, ofs);
+	return;
+      }
+    }
+    ofs = field_ofs[ir->op2];
+  }
+  lj_assertA(!irt_isi8(ir->t), "unsupported FLOAD I8");
+  emit_tai(as, pi, dest, idx, ofs);
+}
+
+static void asm_fstore(ASMState *as, IRIns *ir)
+{
+  if (ir->r != RID_SINK) {
+    Reg src = ra_alloc1(as, ir->op2, RSET_GPR);
+    IRIns *irf = IR(ir->op1);
+    Reg idx = ra_alloc1(as, irf->op1, rset_exclude(RSET_GPR, src));
+    int32_t ofs = field_ofs[irf->op2];
+    PPCIns pi = asm_fxstoreins(as, ir);
+    emit_tai(as, pi, src, idx, ofs);
+  }
+}
+
+static void asm_xload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir,
+    (!LJ_SOFTFP && irt_isfp(ir->t)) ? RSET_FPR : RSET_GPR);
+  lj_assertA(!(ir->op2 & IRXLOAD_UNALIGNED), "unaligned XLOAD");
+  if (irt_isi8(ir->t))
+    emit_as(as, PPCI_EXTSB, dest, dest);
+  asm_fusexref(as, asm_fxloadins(as, ir), dest, ir->op1, RSET_GPR, 0);
+}
+
+static void asm_xstore_(ASMState *as, IRIns *ir, int32_t ofs)
+{
+  IRIns *irb;
+  if (ir->r == RID_SINK)
+    return;
+  if (ofs == 0 && mayfuse(as, ir->op2) && (irb = IR(ir->op2))->o == IR_BSWAP &&
+      ra_noreg(irb->r) && (irt_isint(ir->t) || irt_isu32(ir->t))) {
+    /* Fuse BSWAP with XSTORE to stwbrx. */
+    Reg src = ra_alloc1(as, irb->op1, RSET_GPR);
+    asm_fusexrefx(as, PPCI_STWBRX, src, ir->op1, rset_exclude(RSET_GPR, src));
+  } else {
+    Reg src = ra_alloc1(as, ir->op2,
+      (!LJ_SOFTFP && irt_isfp(ir->t)) ? RSET_FPR : RSET_GPR);
+    asm_fusexref(as, asm_fxstoreins(as, ir), src, ir->op1,
+		 rset_exclude(RSET_GPR, src), ofs);
+  }
+}
+
+#define asm_xstore(as, ir)	asm_xstore_(as, ir, 0)
+
+static void asm_ahuvload(ASMState *as, IRIns *ir)
+{
+  IRType1 t = ir->t;
+  Reg dest = RID_NONE, type = RID_TMP, tmp = RID_TMP, idx;
+  RegSet allow = RSET_GPR;
+  int32_t ofs = AHUREF_LSX;
+  if (LJ_SOFTFP && (ir+1)->o == IR_HIOP) {
+    t.irt = IRT_NUM;
+    if (ra_used(ir+1)) {
+      type = ra_dest(as, ir+1, allow);
+      rset_clear(allow, type);
+    }
+    ofs = 0;
+  }
+  if (ra_used(ir)) {
+    lj_assertA((LJ_SOFTFP ? 0 : irt_isnum(ir->t)) ||
+	       irt_isint(ir->t) || irt_isaddr(ir->t),
+	       "bad load type %d", irt_type(ir->t));
+    if (LJ_SOFTFP || !irt_isnum(t)) ofs = 0;
+    dest = ra_dest(as, ir, (!LJ_SOFTFP && irt_isnum(t)) ? RSET_FPR : allow);
+    rset_clear(allow, dest);
+  }
+  idx = asm_fuseahuref(as, ir->op1, &ofs, allow);
+  if (ir->o == IR_VLOAD) {
+    ofs = ofs != AHUREF_LSX ? ofs + 8 * ir->op2 :
+	  ir->op2 ? 8 * ir->op2 : AHUREF_LSX;
+  }
+  if (irt_isnum(t)) {
+    Reg tisnum = ra_allock(as, (int32_t)LJ_TISNUM, rset_exclude(allow, idx));
+    asm_guardcc(as, CC_GE);
+    emit_ab(as, PPCI_CMPLW, type, tisnum);
+    if (ra_hasreg(dest)) {
+      if (!LJ_SOFTFP && ofs == AHUREF_LSX) {
+	tmp = ra_scratch(as, rset_exclude(rset_exclude(RSET_GPR,
+						       (idx&255)), (idx>>8)));
+	emit_fab(as, PPCI_LFDX, dest, (idx&255), tmp);
+      } else {
+	emit_fai(as, LJ_SOFTFP ? PPCI_LWZ : PPCI_LFD, dest, idx,
+		 ofs+4*LJ_SOFTFP);
+      }
+    }
+  } else {
+    asm_guardcc(as, CC_NE);
+    emit_ai(as, PPCI_CMPWI, type, irt_toitype(t));
+    if (ra_hasreg(dest)) emit_tai(as, PPCI_LWZ, dest, idx, ofs+4);
+  }
+  if (ofs == AHUREF_LSX) {
+    emit_tab(as, PPCI_LWZX, type, (idx&255), tmp);
+    emit_slwi(as, tmp, (idx>>8), 3);
+  } else {
+    emit_tai(as, PPCI_LWZ, type, idx, ofs);
+  }
+}
+
+static void asm_ahustore(ASMState *as, IRIns *ir)
+{
+  RegSet allow = RSET_GPR;
+  Reg idx, src = RID_NONE, type = RID_NONE;
+  int32_t ofs = AHUREF_LSX;
+  if (ir->r == RID_SINK)
+    return;
+  if (!LJ_SOFTFP && irt_isnum(ir->t)) {
+    src = ra_alloc1(as, ir->op2, RSET_FPR);
+  } else {
+    if (!irt_ispri(ir->t)) {
+      src = ra_alloc1(as, ir->op2, allow);
+      rset_clear(allow, src);
+      ofs = 0;
+    }
+    if (LJ_SOFTFP && (ir+1)->o == IR_HIOP)
+      type = ra_alloc1(as, (ir+1)->op2, allow);
+    else
+      type = ra_allock(as, (int32_t)irt_toitype(ir->t), allow);
+    rset_clear(allow, type);
+  }
+  idx = asm_fuseahuref(as, ir->op1, &ofs, allow);
+  if (!LJ_SOFTFP && irt_isnum(ir->t)) {
+    if (ofs == AHUREF_LSX) {
+      emit_fab(as, PPCI_STFDX, src, (idx&255), RID_TMP);
+      emit_slwi(as, RID_TMP, (idx>>8), 3);
+    } else {
+      emit_fai(as, PPCI_STFD, src, idx, ofs);
+    }
+  } else {
+    if (ra_hasreg(src))
+      emit_tai(as, PPCI_STW, src, idx, ofs+4);
+    if (ofs == AHUREF_LSX) {
+      emit_tab(as, PPCI_STWX, type, (idx&255), RID_TMP);
+      emit_slwi(as, RID_TMP, (idx>>8), 3);
+    } else {
+      emit_tai(as, PPCI_STW, type, idx, ofs);
+    }
+  }
+}
+
+static void asm_sload(ASMState *as, IRIns *ir)
+{
+  int32_t ofs = 8*((int32_t)ir->op1-1) + ((ir->op2 & IRSLOAD_FRAME) ? 0 : 4);
+  IRType1 t = ir->t;
+  Reg dest = RID_NONE, type = RID_NONE, base;
+  RegSet allow = RSET_GPR;
+  int hiop = (LJ_SOFTFP && (ir+1)->o == IR_HIOP);
+  if (hiop)
+    t.irt = IRT_NUM;
+  lj_assertA(!(ir->op2 & IRSLOAD_PARENT),
+	     "bad parent SLOAD");  /* Handled by asm_head_side(). */
+  lj_assertA(irt_isguard(ir->t) || !(ir->op2 & IRSLOAD_TYPECHECK),
+	     "inconsistent SLOAD variant");
+  lj_assertA(LJ_DUALNUM ||
+	     !irt_isint(t) ||
+	     (ir->op2 & (IRSLOAD_CONVERT|IRSLOAD_FRAME|IRSLOAD_KEYINDEX)),
+	     "bad SLOAD type");
+#if LJ_SOFTFP
+  lj_assertA(!(ir->op2 & IRSLOAD_CONVERT),
+	     "unsplit SLOAD convert");  /* Handled by LJ_SOFTFP SPLIT. */
+  if (hiop && ra_used(ir+1)) {
+    type = ra_dest(as, ir+1, allow);
+    rset_clear(allow, type);
+  }
+#else
+  if ((ir->op2 & IRSLOAD_CONVERT) && irt_isguard(t) && irt_isint(t)) {
+    dest = ra_scratch(as, RSET_FPR);
+    asm_tointg(as, ir, dest);
+    t.irt = IRT_NUM;  /* Continue with a regular number type check. */
+  } else
+#endif
+  if (ra_used(ir)) {
+    lj_assertA(irt_isnum(t) || irt_isint(t) || irt_isaddr(t),
+	       "bad SLOAD type %d", irt_type(ir->t));
+    dest = ra_dest(as, ir, (!LJ_SOFTFP && irt_isnum(t)) ? RSET_FPR : allow);
+    rset_clear(allow, dest);
+    base = ra_alloc1(as, REF_BASE, allow);
+    rset_clear(allow, base);
+    if (!LJ_SOFTFP && (ir->op2 & IRSLOAD_CONVERT)) {
+      if (irt_isint(t)) {
+	emit_tai(as, PPCI_LWZ, dest, RID_SP, SPOFS_TMPLO);
+	dest = ra_scratch(as, RSET_FPR);
+	emit_fai(as, PPCI_STFD, dest, RID_SP, SPOFS_TMP);
+	emit_fb(as, PPCI_FCTIWZ, dest, dest);
+	t.irt = IRT_NUM;  /* Check for original type. */
+      } else {
+	Reg tmp = ra_scratch(as, allow);
+	Reg hibias = ra_allock(as, 0x43300000, rset_clear(allow, tmp));
+	Reg fbias = ra_scratch(as, rset_exclude(RSET_FPR, dest));
+	emit_fab(as, PPCI_FSUB, dest, dest, fbias);
+	emit_fai(as, PPCI_LFD, dest, RID_SP, SPOFS_TMP);
+	emit_lsptr(as, PPCI_LFS, (fbias & 31),
+		   (void *)&as->J->k32[LJ_K32_2P52_2P31],
+		   rset_clear(allow, hibias));
+	emit_tai(as, PPCI_STW, tmp, RID_SP, SPOFS_TMPLO);
+	emit_tai(as, PPCI_STW, hibias, RID_SP, SPOFS_TMPHI);
+	emit_asi(as, PPCI_XORIS, tmp, tmp, 0x8000);
+	dest = tmp;
+	t.irt = IRT_INT;  /* Check for original type. */
+      }
+    }
+    goto dotypecheck;
+  }
+  base = ra_alloc1(as, REF_BASE, allow);
+  rset_clear(allow, base);
+dotypecheck:
+  if (irt_isnum(t)) {
+    if ((ir->op2 & IRSLOAD_TYPECHECK)) {
+      Reg tisnum = ra_allock(as, (int32_t)LJ_TISNUM, allow);
+      asm_guardcc(as, CC_GE);
+#if !LJ_SOFTFP
+      type = RID_TMP;
+#endif
+      emit_ab(as, PPCI_CMPLW, type, tisnum);
+    }
+    if (ra_hasreg(dest)) emit_fai(as, LJ_SOFTFP ? PPCI_LWZ : PPCI_LFD, dest,
+				  base, ofs-(LJ_SOFTFP?0:4));
+  } else {
+    if ((ir->op2 & IRSLOAD_TYPECHECK)) {
+      asm_guardcc(as, CC_NE);
+      if ((ir->op2 & IRSLOAD_KEYINDEX)) {
+	emit_ai(as, PPCI_CMPWI, RID_TMP, (LJ_KEYINDEX & 0xffff));
+	emit_asi(as, PPCI_XORIS, RID_TMP, RID_TMP, (LJ_KEYINDEX >> 16));
+      } else {
+	emit_ai(as, PPCI_CMPWI, RID_TMP, irt_toitype(t));
+      }
+      type = RID_TMP;
+    }
+    if (ra_hasreg(dest)) emit_tai(as, PPCI_LWZ, dest, base, ofs);
+  }
+  if (ra_hasreg(type)) emit_tai(as, PPCI_LWZ, type, base, ofs-4);
+}
+
+/* -- Allocations --------------------------------------------------------- */
+
+#if LJ_HASFFI
+static void asm_cnew(ASMState *as, IRIns *ir)
+{
+  CTState *cts = ctype_ctsG(J2G(as->J));
+  CTypeID id = (CTypeID)IR(ir->op1)->i;
+  CTSize sz;
+  CTInfo info = lj_ctype_info(cts, id, &sz);
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_mem_newgco];
+  IRRef args[4];
+  RegSet drop = RSET_SCRATCH;
+  lj_assertA(sz != CTSIZE_INVALID || (ir->o == IR_CNEW && ir->op2 != REF_NIL),
+	     "bad CNEW/CNEWI operands");
+
+  as->gcsteps++;
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop);
+  if (ra_used(ir))
+    ra_destreg(as, ir, RID_RET);  /* GCcdata * */
+
+  /* Initialize immutable cdata object. */
+  if (ir->o == IR_CNEWI) {
+    RegSet allow = (RSET_GPR & ~RSET_SCRATCH);
+    int32_t ofs = sizeof(GCcdata);
+    lj_assertA(sz == 4 || sz == 8, "bad CNEWI size %d", sz);
+    if (sz == 8) {
+      ofs += 4;
+      lj_assertA((ir+1)->o == IR_HIOP, "expected HIOP for CNEWI");
+    }
+    for (;;) {
+      Reg r = ra_alloc1(as, ir->op2, allow);
+      emit_tai(as, PPCI_STW, r, RID_RET, ofs);
+      rset_clear(allow, r);
+      if (ofs == sizeof(GCcdata)) break;
+      ofs -= 4; ir++;
+    }
+  } else if (ir->op2 != REF_NIL) {  /* Create VLA/VLS/aligned cdata. */
+    ci = &lj_ir_callinfo[IRCALL_lj_cdata_newv];
+    args[0] = ASMREF_L;     /* lua_State *L */
+    args[1] = ir->op1;      /* CTypeID id   */
+    args[2] = ir->op2;      /* CTSize sz    */
+    args[3] = ASMREF_TMP1;  /* CTSize align */
+    asm_gencall(as, ci, args);
+    emit_loadi(as, ra_releasetmp(as, ASMREF_TMP1), (int32_t)ctype_align(info));
+    return;
+  }
+
+  /* Initialize gct and ctypeid. lj_mem_newgco() already sets marked. */
+  emit_tai(as, PPCI_STB, RID_RET+1, RID_RET, offsetof(GCcdata, gct));
+  emit_tai(as, PPCI_STH, RID_TMP, RID_RET, offsetof(GCcdata, ctypeid));
+  emit_ti(as, PPCI_LI, RID_RET+1, ~LJ_TCDATA);
+  emit_ti(as, PPCI_LI, RID_TMP, id);  /* Lower 16 bit used. Sign-ext ok. */
+  args[0] = ASMREF_L;     /* lua_State *L */
+  args[1] = ASMREF_TMP1;  /* MSize size   */
+  asm_gencall(as, ci, args);
+  ra_allockreg(as, (int32_t)(sz+sizeof(GCcdata)),
+	       ra_releasetmp(as, ASMREF_TMP1));
+}
+#endif
+
+/* -- Write barriers ------------------------------------------------------ */
+
+static void asm_tbar(ASMState *as, IRIns *ir)
+{
+  Reg tab = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg mark = ra_scratch(as, rset_exclude(RSET_GPR, tab));
+  Reg link = RID_TMP;
+  MCLabel l_end = emit_label(as);
+  emit_tai(as, PPCI_STW, link, tab, (int32_t)offsetof(GCtab, gclist));
+  emit_tai(as, PPCI_STB, mark, tab, (int32_t)offsetof(GCtab, marked));
+  emit_setgl(as, tab, gc.grayagain);
+  lj_assertA(LJ_GC_BLACK == 0x04, "bad LJ_GC_BLACK");
+  emit_rot(as, PPCI_RLWINM, mark, mark, 0, 30, 28);  /* Clear black bit. */
+  emit_getgl(as, link, gc.grayagain);
+  emit_condbranch(as, PPCI_BC|PPCF_Y, CC_EQ, l_end);
+  emit_asi(as, PPCI_ANDIDOT, RID_TMP, mark, LJ_GC_BLACK);
+  emit_tai(as, PPCI_LBZ, mark, tab, (int32_t)offsetof(GCtab, marked));
+}
+
+static void asm_obar(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_barrieruv];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg obj, val, tmp;
+  /* No need for other object barriers (yet). */
+  lj_assertA(IR(ir->op1)->o == IR_UREFC, "bad OBAR type");
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ir->op1;      /* TValue *tv      */
+  asm_gencall(as, ci, args);
+  emit_tai(as, PPCI_ADDI, ra_releasetmp(as, ASMREF_TMP1), RID_JGL, -32768);
+  obj = IR(ir->op1)->r;
+  tmp = ra_scratch(as, rset_exclude(RSET_GPR, obj));
+  emit_condbranch(as, PPCI_BC|PPCF_Y, CC_EQ, l_end);
+  emit_asi(as, PPCI_ANDIDOT, tmp, tmp, LJ_GC_BLACK);
+  emit_condbranch(as, PPCI_BC, CC_EQ, l_end);
+  emit_asi(as, PPCI_ANDIDOT, RID_TMP, RID_TMP, LJ_GC_WHITES);
+  val = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, obj));
+  emit_tai(as, PPCI_LBZ, tmp, obj,
+	   (int32_t)offsetof(GCupval, marked)-(int32_t)offsetof(GCupval, tv));
+  emit_tai(as, PPCI_LBZ, RID_TMP, val, (int32_t)offsetof(GChead, marked));
+}
+
+/* -- Arithmetic and logic operations ------------------------------------- */
+
+#if !LJ_SOFTFP
+static void asm_fparith(ASMState *as, IRIns *ir, PPCIns pi)
+{
+  Reg dest = ra_dest(as, ir, RSET_FPR);
+  Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+  right = (left >> 8); left &= 255;
+  if (pi == PPCI_FMUL)
+    emit_fac(as, pi, dest, left, right);
+  else
+    emit_fab(as, pi, dest, left, right);
+}
+
+static void asm_fpunary(ASMState *as, IRIns *ir, PPCIns pi)
+{
+  Reg dest = ra_dest(as, ir, RSET_FPR);
+  Reg left = ra_hintalloc(as, ir->op1, dest, RSET_FPR);
+  emit_fb(as, pi, dest, left);
+}
+
+static void asm_fpmath(ASMState *as, IRIns *ir)
+{
+  if (ir->op2 == IRFPM_SQRT && (as->flags & JIT_F_SQRT))
+    asm_fpunary(as, ir, PPCI_FSQRT);
+  else
+    asm_callid(as, ir, IRCALL_lj_vm_floor + ir->op2);
+}
+#endif
+
+static void asm_add(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+  if (irt_isnum(ir->t)) {
+    if (!asm_fusemadd(as, ir, PPCI_FMADD, PPCI_FMADD))
+      asm_fparith(as, ir, PPCI_FADD);
+  } else
+#endif
+  {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg right, left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+    PPCIns pi;
+    if (irref_isk(ir->op2)) {
+      int32_t k = IR(ir->op2)->i;
+      if (checki16(k)) {
+	pi = PPCI_ADDI;
+	/* May fail due to spills/restores above, but simplifies the logic. */
+	if (as->flagmcp == as->mcp) {
+	  as->flagmcp = NULL;
+	  as->mcp++;
+	  pi = PPCI_ADDICDOT;
+	}
+	emit_tai(as, pi, dest, left, k);
+	return;
+      } else if ((k & 0xffff) == 0) {
+	emit_tai(as, PPCI_ADDIS, dest, left, (k >> 16));
+	return;
+      } else if (!as->sectref) {
+	emit_tai(as, PPCI_ADDIS, dest, dest, (k + 32768) >> 16);
+	emit_tai(as, PPCI_ADDI, dest, left, k);
+	return;
+      }
+    }
+    pi = PPCI_ADD;
+    /* May fail due to spills/restores above, but simplifies the logic. */
+    if (as->flagmcp == as->mcp) {
+      as->flagmcp = NULL;
+      as->mcp++;
+      pi |= PPCF_DOT;
+    }
+    right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+    emit_tab(as, pi, dest, left, right);
+  }
+}
+
+static void asm_sub(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+  if (irt_isnum(ir->t)) {
+    if (!asm_fusemadd(as, ir, PPCI_FMSUB, PPCI_FNMSUB))
+      asm_fparith(as, ir, PPCI_FSUB);
+  } else
+#endif
+  {
+    PPCIns pi = PPCI_SUBF;
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg left, right;
+    if (irref_isk(ir->op1)) {
+      int32_t k = IR(ir->op1)->i;
+      if (checki16(k)) {
+	right = ra_alloc1(as, ir->op2, RSET_GPR);
+	emit_tai(as, PPCI_SUBFIC, dest, right, k);
+	return;
+      }
+    }
+    /* May fail due to spills/restores above, but simplifies the logic. */
+    if (as->flagmcp == as->mcp) {
+      as->flagmcp = NULL;
+      as->mcp++;
+      pi |= PPCF_DOT;
+    }
+    left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+    right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+    emit_tab(as, pi, dest, right, left);  /* Subtract right _from_ left. */
+  }
+}
+
+static void asm_mul(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+  if (irt_isnum(ir->t)) {
+    asm_fparith(as, ir, PPCI_FMUL);
+  } else
+#endif
+  {
+    PPCIns pi = PPCI_MULLW;
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg right, left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+    if (irref_isk(ir->op2)) {
+      int32_t k = IR(ir->op2)->i;
+      if (checki16(k)) {
+	emit_tai(as, PPCI_MULLI, dest, left, k);
+	return;
+      }
+    }
+    /* May fail due to spills/restores above, but simplifies the logic. */
+    if (as->flagmcp == as->mcp) {
+      as->flagmcp = NULL;
+      as->mcp++;
+      pi |= PPCF_DOT;
+    }
+    right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+    emit_tab(as, pi, dest, left, right);
+  }
+}
+
+#define asm_fpdiv(as, ir)	asm_fparith(as, ir, PPCI_FDIV)
+
+static void asm_neg(ASMState *as, IRIns *ir)
+{
+#if !LJ_SOFTFP
+  if (irt_isnum(ir->t)) {
+    asm_fpunary(as, ir, PPCI_FNEG);
+  } else
+#endif
+  {
+    Reg dest, left;
+    PPCIns pi = PPCI_NEG;
+    if (as->flagmcp == as->mcp) {
+      as->flagmcp = NULL;
+      as->mcp++;
+      pi |= PPCF_DOT;
+    }
+    dest = ra_dest(as, ir, RSET_GPR);
+    left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+    emit_tab(as, pi, dest, left, 0);
+  }
+}
+
+#define asm_abs(as, ir)		asm_fpunary(as, ir, PPCI_FABS)
+
+static void asm_arithov(ASMState *as, IRIns *ir, PPCIns pi)
+{
+  Reg dest, left, right;
+  if (as->flagmcp == as->mcp) {
+    as->flagmcp = NULL;
+    as->mcp++;
+  }
+  asm_guardcc(as, CC_SO);
+  dest = ra_dest(as, ir, RSET_GPR);
+  left = ra_alloc2(as, ir, RSET_GPR);
+  right = (left >> 8); left &= 255;
+  if (pi == PPCI_SUBFO) { Reg tmp = left; left = right; right = tmp; }
+  emit_tab(as, pi|PPCF_DOT, dest, left, right);
+}
+
+#define asm_addov(as, ir)	asm_arithov(as, ir, PPCI_ADDO)
+#define asm_subov(as, ir)	asm_arithov(as, ir, PPCI_SUBFO)
+#define asm_mulov(as, ir)	asm_arithov(as, ir, PPCI_MULLWO)
+
+#if LJ_HASFFI
+static void asm_add64(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg right, left = ra_alloc1(as, ir->op1, RSET_GPR);
+  PPCIns pi = PPCI_ADDE;
+  if (irref_isk(ir->op2)) {
+    int32_t k = IR(ir->op2)->i;
+    if (k == 0)
+      pi = PPCI_ADDZE;
+    else if (k == -1)
+      pi = PPCI_ADDME;
+    else
+      goto needright;
+    right = 0;
+  } else {
+  needright:
+    right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  }
+  emit_tab(as, pi, dest, left, right);
+  ir--;
+  dest = ra_dest(as, ir, RSET_GPR);
+  left = ra_alloc1(as, ir->op1, RSET_GPR);
+  if (irref_isk(ir->op2)) {
+    int32_t k = IR(ir->op2)->i;
+    if (checki16(k)) {
+      emit_tai(as, PPCI_ADDIC, dest, left, k);
+      return;
+    }
+  }
+  right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  emit_tab(as, PPCI_ADDC, dest, left, right);
+}
+
+static void asm_sub64(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left, right = ra_alloc1(as, ir->op2, RSET_GPR);
+  PPCIns pi = PPCI_SUBFE;
+  if (irref_isk(ir->op1)) {
+    int32_t k = IR(ir->op1)->i;
+    if (k == 0)
+      pi = PPCI_SUBFZE;
+    else if (k == -1)
+      pi = PPCI_SUBFME;
+    else
+      goto needleft;
+    left = 0;
+  } else {
+  needleft:
+    left = ra_alloc1(as, ir->op1, rset_exclude(RSET_GPR, right));
+  }
+  emit_tab(as, pi, dest, right, left);  /* Subtract right _from_ left. */
+  ir--;
+  dest = ra_dest(as, ir, RSET_GPR);
+  right = ra_alloc1(as, ir->op2, RSET_GPR);
+  if (irref_isk(ir->op1)) {
+    int32_t k = IR(ir->op1)->i;
+    if (checki16(k)) {
+      emit_tai(as, PPCI_SUBFIC, dest, right, k);
+      return;
+    }
+  }
+  left = ra_alloc1(as, ir->op1, rset_exclude(RSET_GPR, right));
+  emit_tab(as, PPCI_SUBFC, dest, right, left);
+}
+
+static void asm_neg64(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+  emit_tab(as, PPCI_SUBFZE, dest, left, 0);
+  ir--;
+  dest = ra_dest(as, ir, RSET_GPR);
+  left = ra_alloc1(as, ir->op1, RSET_GPR);
+  emit_tai(as, PPCI_SUBFIC, dest, left, 0);
+}
+#endif
+
+static void asm_bnot(ASMState *as, IRIns *ir)
+{
+  Reg dest, left, right;
+  PPCIns pi = PPCI_NOR;
+  if (as->flagmcp == as->mcp) {
+    as->flagmcp = NULL;
+    as->mcp++;
+    pi |= PPCF_DOT;
+  }
+  dest = ra_dest(as, ir, RSET_GPR);
+  if (mayfuse(as, ir->op1)) {
+    IRIns *irl = IR(ir->op1);
+    if (irl->o == IR_BAND)
+      pi ^= (PPCI_NOR ^ PPCI_NAND);
+    else if (irl->o == IR_BXOR)
+      pi ^= (PPCI_NOR ^ PPCI_EQV);
+    else if (irl->o != IR_BOR)
+      goto nofuse;
+    left = ra_hintalloc(as, irl->op1, dest, RSET_GPR);
+    right = ra_alloc1(as, irl->op2, rset_exclude(RSET_GPR, left));
+  } else {
+nofuse:
+    left = right = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+  }
+  emit_asb(as, pi, dest, left, right);
+}
+
+static void asm_bswap(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  IRIns *irx;
+  if (mayfuse(as, ir->op1) && (irx = IR(ir->op1))->o == IR_XLOAD &&
+      ra_noreg(irx->r) && (irt_isint(irx->t) || irt_isu32(irx->t))) {
+    /* Fuse BSWAP with XLOAD to lwbrx. */
+    asm_fusexrefx(as, PPCI_LWBRX, dest, irx->op1, RSET_GPR);
+  } else {
+    Reg left = ra_alloc1(as, ir->op1, RSET_GPR);
+    Reg tmp = dest;
+    if (tmp == left) {
+      tmp = RID_TMP;
+      emit_mr(as, dest, RID_TMP);
+    }
+    emit_rot(as, PPCI_RLWIMI, tmp, left, 24, 16, 23);
+    emit_rot(as, PPCI_RLWIMI, tmp, left, 24, 0, 7);
+    emit_rotlwi(as, tmp, left, 8);
+  }
+}
+
+/* Fuse BAND with contiguous bitmask and a shift to rlwinm. */
+static void asm_fuseandsh(ASMState *as, PPCIns pi, int32_t mask, IRRef ref)
+{
+  IRIns *ir;
+  Reg left;
+  if (mayfuse(as, ref) && (ir = IR(ref), ra_noreg(ir->r)) &&
+      irref_isk(ir->op2) && ir->o >= IR_BSHL && ir->o <= IR_BROR) {
+    int32_t sh = (IR(ir->op2)->i & 31);
+    switch (ir->o) {
+    case IR_BSHL:
+      if ((mask & ((1u<<sh)-1))) goto nofuse;
+      break;
+    case IR_BSHR:
+      if ((mask & ~((~0u)>>sh))) goto nofuse;
+      sh = ((32-sh)&31);
+      break;
+    case IR_BROL:
+      break;
+    default:
+      goto nofuse;
+    }
+    left = ra_alloc1(as, ir->op1, RSET_GPR);
+    *--as->mcp = pi | PPCF_T(left) | PPCF_B(sh);
+    return;
+  }
+nofuse:
+  left = ra_alloc1(as, ref, RSET_GPR);
+  *--as->mcp = pi | PPCF_T(left);
+}
+
+static void asm_band(ASMState *as, IRIns *ir)
+{
+  Reg dest, left, right;
+  IRRef lref = ir->op1;
+  PPCIns dot = 0;
+  IRRef op2;
+  if (as->flagmcp == as->mcp) {
+    as->flagmcp = NULL;
+    as->mcp++;
+    dot = PPCF_DOT;
+  }
+  dest = ra_dest(as, ir, RSET_GPR);
+  if (irref_isk(ir->op2)) {
+    int32_t k = IR(ir->op2)->i;
+    if (k) {
+      /* First check for a contiguous bitmask as used by rlwinm. */
+      uint32_t s1 = lj_ffs((uint32_t)k);
+      uint32_t k1 = ((uint32_t)k >> s1);
+      if ((k1 & (k1+1)) == 0) {
+	asm_fuseandsh(as, PPCI_RLWINM|dot | PPCF_A(dest) |
+			  PPCF_MB(31-lj_fls((uint32_t)k)) | PPCF_ME(31-s1),
+			  k, lref);
+	return;
+      }
+      if (~(uint32_t)k) {
+	uint32_t s2 = lj_ffs(~(uint32_t)k);
+	uint32_t k2 = (~(uint32_t)k >> s2);
+	if ((k2 & (k2+1)) == 0) {
+	  asm_fuseandsh(as, PPCI_RLWINM|dot | PPCF_A(dest) |
+			    PPCF_MB(32-s2) | PPCF_ME(30-lj_fls(~(uint32_t)k)),
+			    k, lref);
+	  return;
+	}
+      }
+    }
+    if (checku16(k)) {
+      left = ra_alloc1(as, lref, RSET_GPR);
+      emit_asi(as, PPCI_ANDIDOT, dest, left, k);
+      return;
+    } else if ((k & 0xffff) == 0) {
+      left = ra_alloc1(as, lref, RSET_GPR);
+      emit_asi(as, PPCI_ANDISDOT, dest, left, (k >> 16));
+      return;
+    }
+  }
+  op2 = ir->op2;
+  if (mayfuse(as, op2) && IR(op2)->o == IR_BNOT && ra_noreg(IR(op2)->r)) {
+    dot ^= (PPCI_AND ^ PPCI_ANDC);
+    op2 = IR(op2)->op1;
+  }
+  left = ra_hintalloc(as, lref, dest, RSET_GPR);
+  right = ra_alloc1(as, op2, rset_exclude(RSET_GPR, left));
+  emit_asb(as, PPCI_AND ^ dot, dest, left, right);
+}
+
+static void asm_bitop(ASMState *as, IRIns *ir, PPCIns pi, PPCIns pik)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg right, left = ra_hintalloc(as, ir->op1, dest, RSET_GPR);
+  if (irref_isk(ir->op2)) {
+    int32_t k = IR(ir->op2)->i;
+    Reg tmp = left;
+    if ((checku16(k) || (k & 0xffff) == 0) || (tmp = dest, !as->sectref)) {
+      if (!checku16(k)) {
+	emit_asi(as, pik ^ (PPCI_ORI ^ PPCI_ORIS), dest, tmp, (k >> 16));
+	if ((k & 0xffff) == 0) return;
+      }
+      emit_asi(as, pik, dest, left, k);
+      return;
+    }
+  }
+  /* May fail due to spills/restores above, but simplifies the logic. */
+  if (as->flagmcp == as->mcp) {
+    as->flagmcp = NULL;
+    as->mcp++;
+    pi |= PPCF_DOT;
+  }
+  right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+  emit_asb(as, pi, dest, left, right);
+}
+
+#define asm_bor(as, ir)		asm_bitop(as, ir, PPCI_OR, PPCI_ORI)
+#define asm_bxor(as, ir)	asm_bitop(as, ir, PPCI_XOR, PPCI_XORI)
+
+static void asm_bitshift(ASMState *as, IRIns *ir, PPCIns pi, PPCIns pik)
+{
+  Reg dest, left;
+  Reg dot = 0;
+  if (as->flagmcp == as->mcp) {
+    as->flagmcp = NULL;
+    as->mcp++;
+    dot = PPCF_DOT;
+  }
+  dest = ra_dest(as, ir, RSET_GPR);
+  left = ra_alloc1(as, ir->op1, RSET_GPR);
+  if (irref_isk(ir->op2)) {  /* Constant shifts. */
+    int32_t shift = (IR(ir->op2)->i & 31);
+    if (pik == 0)  /* SLWI */
+      emit_rot(as, PPCI_RLWINM|dot, dest, left, shift, 0, 31-shift);
+    else if (pik == 1)  /* SRWI */
+      emit_rot(as, PPCI_RLWINM|dot, dest, left, (32-shift)&31, shift, 31);
+    else
+      emit_asb(as, pik|dot, dest, left, shift);
+  } else {
+    Reg right = ra_alloc1(as, ir->op2, rset_exclude(RSET_GPR, left));
+    emit_asb(as, pi|dot, dest, left, right);
+  }
+}
+
+#define asm_bshl(as, ir)	asm_bitshift(as, ir, PPCI_SLW, 0)
+#define asm_bshr(as, ir)	asm_bitshift(as, ir, PPCI_SRW, 1)
+#define asm_bsar(as, ir)	asm_bitshift(as, ir, PPCI_SRAW, PPCI_SRAWI)
+#define asm_brol(as, ir) \
+  asm_bitshift(as, ir, PPCI_RLWNM|PPCF_MB(0)|PPCF_ME(31), \
+		       PPCI_RLWINM|PPCF_MB(0)|PPCF_ME(31))
+#define asm_bror(as, ir)	lj_assertA(0, "unexpected BROR")
+
+#if LJ_SOFTFP
+static void asm_sfpmin_max(ASMState *as, IRIns *ir)
+{
+  CCallInfo ci = lj_ir_callinfo[IRCALL_softfp_cmp];
+  IRRef args[4];
+  MCLabel l_right, l_end;
+  Reg desthi = ra_dest(as, ir, RSET_GPR), destlo = ra_dest(as, ir+1, RSET_GPR);
+  Reg righthi, lefthi = ra_alloc2(as, ir, RSET_GPR);
+  Reg rightlo, leftlo = ra_alloc2(as, ir+1, RSET_GPR);
+  PPCCC cond = (IROp)ir->o == IR_MIN ? CC_EQ : CC_NE;
+  righthi = (lefthi >> 8); lefthi &= 255;
+  rightlo = (leftlo >> 8); leftlo &= 255;
+  args[0^LJ_BE] = ir->op1; args[1^LJ_BE] = (ir+1)->op1;
+  args[2^LJ_BE] = ir->op2; args[3^LJ_BE] = (ir+1)->op2;
+  l_end = emit_label(as);
+  if (desthi != righthi) emit_mr(as, desthi, righthi);
+  if (destlo != rightlo) emit_mr(as, destlo, rightlo);
+  l_right = emit_label(as);
+  if (l_end != l_right) emit_jmp(as, l_end);
+  if (desthi != lefthi) emit_mr(as, desthi, lefthi);
+  if (destlo != leftlo) emit_mr(as, destlo, leftlo);
+  if (l_right == as->mcp+1) {
+    cond ^= 4; l_right = l_end; ++as->mcp;
+  }
+  emit_condbranch(as, PPCI_BC, cond, l_right);
+  ra_evictset(as, RSET_SCRATCH);
+  emit_cmpi(as, RID_RET, 1);
+  asm_gencall(as, &ci, args);
+}
+#endif
+
+static void asm_min_max(ASMState *as, IRIns *ir, int ismax)
+{
+  if (!LJ_SOFTFP && irt_isnum(ir->t)) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    Reg tmp = dest;
+    Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+    right = (left >> 8); left &= 255;
+    if (tmp == left || tmp == right)
+      tmp = ra_scratch(as, rset_exclude(rset_exclude(rset_exclude(RSET_FPR,
+					dest), left), right));
+    emit_facb(as, PPCI_FSEL, dest, tmp, left, right);
+    emit_fab(as, PPCI_FSUB, tmp, ismax ? left : right, ismax ? right : left);
+  } else {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    Reg tmp1 = RID_TMP, tmp2 = dest;
+    Reg right, left = ra_alloc2(as, ir, RSET_GPR);
+    right = (left >> 8); left &= 255;
+    if (tmp2 == left || tmp2 == right)
+      tmp2 = ra_scratch(as, rset_exclude(rset_exclude(rset_exclude(RSET_GPR,
+					 dest), left), right));
+    emit_tab(as, PPCI_ADD, dest, tmp2, right);
+    emit_asb(as, ismax ? PPCI_ANDC : PPCI_AND, tmp2, tmp2, tmp1);
+    emit_tab(as, PPCI_SUBFE, tmp1, tmp1, tmp1);
+    emit_tab(as, PPCI_SUBFC, tmp2, tmp2, tmp1);
+    emit_asi(as, PPCI_XORIS, tmp2, right, 0x8000);
+    emit_asi(as, PPCI_XORIS, tmp1, left, 0x8000);
+  }
+}
+
+#define asm_min(as, ir)		asm_min_max(as, ir, 0)
+#define asm_max(as, ir)		asm_min_max(as, ir, 1)
+
+/* -- Comparisons --------------------------------------------------------- */
+
+#define CC_UNSIGNED	0x08	/* Unsigned integer comparison. */
+#define CC_TWO		0x80	/* Check two flags for FP comparison. */
+
+/* Map of comparisons to flags. ORDER IR. */
+static const uint8_t asm_compmap[IR_ABC+1] = {
+  /* op     int cc                 FP cc */
+  /* LT  */ CC_GE               + (CC_GE<<4),
+  /* GE  */ CC_LT               + (CC_LE<<4) + CC_TWO,
+  /* LE  */ CC_GT               + (CC_GE<<4) + CC_TWO,
+  /* GT  */ CC_LE               + (CC_LE<<4),
+  /* ULT */ CC_GE + CC_UNSIGNED + (CC_GT<<4) + CC_TWO,
+  /* UGE */ CC_LT + CC_UNSIGNED + (CC_LT<<4),
+  /* ULE */ CC_GT + CC_UNSIGNED + (CC_GT<<4),
+  /* UGT */ CC_LE + CC_UNSIGNED + (CC_LT<<4) + CC_TWO,
+  /* EQ  */ CC_NE               + (CC_NE<<4),
+  /* NE  */ CC_EQ               + (CC_EQ<<4),
+  /* ABC */ CC_LE + CC_UNSIGNED + (CC_LT<<4) + CC_TWO  /* Same as UGT. */
+};
+
+static void asm_intcomp_(ASMState *as, IRRef lref, IRRef rref, Reg cr, PPCCC cc)
+{
+  Reg right, left = ra_alloc1(as, lref, RSET_GPR);
+  if (irref_isk(rref)) {
+    int32_t k = IR(rref)->i;
+    if ((cc & CC_UNSIGNED) == 0) {  /* Signed comparison with constant. */
+      if (checki16(k)) {
+	emit_tai(as, PPCI_CMPWI, cr, left, k);
+	/* Signed comparison with zero and referencing previous ins? */
+	if (k == 0 && lref == as->curins-1)
+	  as->flagmcp = as->mcp;  /* Allow elimination of the compare. */
+	return;
+      } else if ((cc & 3) == (CC_EQ & 3)) {  /* Use CMPLWI for EQ or NE. */
+	if (checku16(k)) {
+	  emit_tai(as, PPCI_CMPLWI, cr, left, k);
+	  return;
+	} else if (!as->sectref && ra_noreg(IR(rref)->r)) {
+	  emit_tai(as, PPCI_CMPLWI, cr, RID_TMP, k);
+	  emit_asi(as, PPCI_XORIS, RID_TMP, left, (k >> 16));
+	  return;
+	}
+      }
+    } else {  /* Unsigned comparison with constant. */
+      if (checku16(k)) {
+	emit_tai(as, PPCI_CMPLWI, cr, left, k);
+	return;
+      }
+    }
+  }
+  right = ra_alloc1(as, rref, rset_exclude(RSET_GPR, left));
+  emit_tab(as, (cc & CC_UNSIGNED) ? PPCI_CMPLW : PPCI_CMPW, cr, left, right);
+}
+
+static void asm_comp(ASMState *as, IRIns *ir)
+{
+  PPCCC cc = asm_compmap[ir->o];
+  if (!LJ_SOFTFP && irt_isnum(ir->t)) {
+    Reg right, left = ra_alloc2(as, ir, RSET_FPR);
+    right = (left >> 8); left &= 255;
+    asm_guardcc(as, (cc >> 4));
+    if ((cc & CC_TWO))
+      emit_tab(as, PPCI_CROR, ((cc>>4)&3), ((cc>>4)&3), (CC_EQ&3));
+    emit_fab(as, PPCI_FCMPU, 0, left, right);
+  } else {
+    IRRef lref = ir->op1, rref = ir->op2;
+    if (irref_isk(lref) && !irref_isk(rref)) {
+      /* Swap constants to the right (only for ABC). */
+      IRRef tmp = lref; lref = rref; rref = tmp;
+      if ((cc & 2) == 0) cc ^= 1;  /* LT <-> GT, LE <-> GE */
+    }
+    asm_guardcc(as, cc);
+    asm_intcomp_(as, lref, rref, 0, cc);
+  }
+}
+
+#define asm_equal(as, ir)	asm_comp(as, ir)
+
+#if LJ_SOFTFP
+/* SFP comparisons. */
+static void asm_sfpcomp(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_softfp_cmp];
+  RegSet drop = RSET_SCRATCH;
+  Reg r;
+  IRRef args[4];
+  args[0^LJ_BE] = ir->op1; args[1^LJ_BE] = (ir+1)->op1;
+  args[2^LJ_BE] = ir->op2; args[3^LJ_BE] = (ir+1)->op2;
+
+  for (r = REGARG_FIRSTGPR; r <= REGARG_FIRSTGPR+3; r++) {
+    if (!rset_test(as->freeset, r) &&
+	regcost_ref(as->cost[r]) == args[r-REGARG_FIRSTGPR])
+      rset_clear(drop, r);
+  }
+  ra_evictset(as, drop);
+  asm_setupresult(as, ir, ci);
+  switch ((IROp)ir->o) {
+  case IR_ULT:
+    asm_guardcc(as, CC_EQ);
+    emit_ai(as, PPCI_CMPWI, RID_RET, 0);
+  case IR_ULE:
+    asm_guardcc(as, CC_EQ);
+    emit_ai(as, PPCI_CMPWI, RID_RET, 1);
+    break;
+  case IR_GE: case IR_GT:
+    asm_guardcc(as, CC_EQ);
+    emit_ai(as, PPCI_CMPWI, RID_RET, 2);
+  default:
+    asm_guardcc(as, (asm_compmap[ir->o] & 0xf));
+    emit_ai(as, PPCI_CMPWI, RID_RET, 0);
+    break;
+  }
+  asm_gencall(as, ci, args);
+}
+#endif
+
+#if LJ_HASFFI
+/* 64 bit integer comparisons. */
+static void asm_comp64(ASMState *as, IRIns *ir)
+{
+  PPCCC cc = asm_compmap[(ir-1)->o];
+  if ((cc&3) == (CC_EQ&3)) {
+    asm_guardcc(as, cc);
+    emit_tab(as, (cc&4) ? PPCI_CRAND : PPCI_CROR,
+	     (CC_EQ&3), (CC_EQ&3), 4+(CC_EQ&3));
+  } else {
+    asm_guardcc(as, CC_EQ);
+    emit_tab(as, PPCI_CROR, (CC_EQ&3), (CC_EQ&3), ((cc^~(cc>>2))&1));
+    emit_tab(as, (cc&4) ? PPCI_CRAND : PPCI_CRANDC,
+	     (CC_EQ&3), (CC_EQ&3), 4+(cc&3));
+  }
+  /* Loword comparison sets cr1 and is unsigned, except for equality. */
+  asm_intcomp_(as, (ir-1)->op1, (ir-1)->op2, 4,
+	       cc | ((cc&3) == (CC_EQ&3) ? 0 : CC_UNSIGNED));
+  /* Hiword comparison sets cr0. */
+  asm_intcomp_(as, ir->op1, ir->op2, 0, cc);
+  as->flagmcp = NULL;  /* Doesn't work here. */
+}
+#endif
+
+/* -- Split register ops -------------------------------------------------- */
+
+/* Hiword op of a split 32/32 bit op. Previous op is be the loword op. */
+static void asm_hiop(ASMState *as, IRIns *ir)
+{
+  /* HIOP is marked as a store because it needs its own DCE logic. */
+  int uselo = ra_used(ir-1), usehi = ra_used(ir);  /* Loword/hiword used? */
+  if (LJ_UNLIKELY(!(as->flags & JIT_F_OPT_DCE))) uselo = usehi = 1;
+#if LJ_HASFFI || LJ_SOFTFP
+  if ((ir-1)->o == IR_CONV) {  /* Conversions to/from 64 bit. */
+    as->curins--;  /* Always skip the CONV. */
+#if LJ_HASFFI && !LJ_SOFTFP
+    if (usehi || uselo)
+      asm_conv64(as, ir);
+    return;
+#endif
+  } else if ((ir-1)->o <= IR_NE) {  /* 64 bit integer comparisons. ORDER IR. */
+    as->curins--;  /* Always skip the loword comparison. */
+#if LJ_SOFTFP
+    if (!irt_isint(ir->t)) {
+      asm_sfpcomp(as, ir-1);
+      return;
+    }
+#endif
+#if LJ_HASFFI
+    asm_comp64(as, ir);
+#endif
+    return;
+#if LJ_SOFTFP
+  } else if ((ir-1)->o == IR_MIN || (ir-1)->o == IR_MAX) {
+      as->curins--;  /* Always skip the loword min/max. */
+    if (uselo || usehi)
+      asm_sfpmin_max(as, ir-1);
+    return;
+#endif
+  } else if ((ir-1)->o == IR_XSTORE) {
+    as->curins--;  /* Handle both stores here. */
+    if ((ir-1)->r != RID_SINK) {
+      asm_xstore_(as, ir, 0);
+      asm_xstore_(as, ir-1, 4);
+    }
+    return;
+  }
+#endif
+  if (!usehi) return;  /* Skip unused hiword op for all remaining ops. */
+  switch ((ir-1)->o) {
+#if LJ_HASFFI
+  case IR_ADD: as->curins--; asm_add64(as, ir); break;
+  case IR_SUB: as->curins--; asm_sub64(as, ir); break;
+  case IR_NEG: as->curins--; asm_neg64(as, ir); break;
+  case IR_CNEWI:
+    /* Nothing to do here. Handled by lo op itself. */
+    break;
+#endif
+#if LJ_SOFTFP
+  case IR_SLOAD: case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+  case IR_STRTO:
+    if (!uselo)
+      ra_allocref(as, ir->op1, RSET_GPR);  /* Mark lo op as used. */
+    break;
+  case IR_ASTORE: case IR_HSTORE: case IR_USTORE: case IR_TOSTR: case IR_TMPREF:
+    /* Nothing to do here. Handled by lo op itself. */
+    break;
+#endif
+  case IR_CALLN: case IR_CALLL: case IR_CALLS: case IR_CALLXS:
+    if (!uselo)
+      ra_allocref(as, ir->op1, RID2RSET(RID_RETLO));  /* Mark lo op as used. */
+    break;
+  default: lj_assertA(0, "bad HIOP for op %d", (ir-1)->o); break;
+  }
+}
+
+/* -- Profiling ----------------------------------------------------------- */
+
+static void asm_prof(ASMState *as, IRIns *ir)
+{
+  UNUSED(ir);
+  asm_guardcc(as, CC_NE);
+  emit_asi(as, PPCI_ANDIDOT, RID_TMP, RID_TMP, HOOK_PROFILE);
+  emit_lsglptr(as, PPCI_LBZ, RID_TMP,
+	       (int32_t)offsetof(global_State, hookmask));
+}
+
+/* -- Stack handling ------------------------------------------------------ */
+
+/* Check Lua stack size for overflow. Use exit handler as fallback. */
+static void asm_stack_check(ASMState *as, BCReg topslot,
+			    IRIns *irp, RegSet allow, ExitNo exitno)
+{
+  /* Try to get an unused temp. register, otherwise spill/restore RID_RET*. */
+  Reg tmp, pbase = irp ? (ra_hasreg(irp->r) ? irp->r : RID_TMP) : RID_BASE;
+  rset_clear(allow, pbase);
+  tmp = allow ? rset_pickbot(allow) :
+		(pbase == RID_RETHI ? RID_RETLO : RID_RETHI);
+  emit_condbranch(as, PPCI_BC, CC_LT, asm_exitstub_addr(as, exitno));
+  if (allow == RSET_EMPTY)  /* Restore temp. register. */
+    emit_tai(as, PPCI_LWZ, tmp, RID_SP, SPOFS_TMPW);
+  else
+    ra_modified(as, tmp);
+  emit_ai(as, PPCI_CMPLWI, RID_TMP, (int32_t)(8*topslot));
+  emit_tab(as, PPCI_SUBF, RID_TMP, pbase, tmp);
+  emit_tai(as, PPCI_LWZ, tmp, tmp, offsetof(lua_State, maxstack));
+  if (pbase == RID_TMP)
+    emit_getgl(as, RID_TMP, jit_base);
+  emit_getgl(as, tmp, cur_L);
+  if (allow == RSET_EMPTY)  /* Spill temp. register. */
+    emit_tai(as, PPCI_STW, tmp, RID_SP, SPOFS_TMPW);
+}
+
+/* Restore Lua stack from on-trace state. */
+static void asm_stack_restore(ASMState *as, SnapShot *snap)
+{
+  SnapEntry *map = &as->T->snapmap[snap->mapofs];
+  SnapEntry *flinks = &as->T->snapmap[snap_nextofs(as->T, snap)-1];
+  MSize n, nent = snap->nent;
+  /* Store the value of all modified slots to the Lua stack. */
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    BCReg s = snap_slot(sn);
+    int32_t ofs = 8*((int32_t)s-1);
+    IRRef ref = snap_ref(sn);
+    IRIns *ir = IR(ref);
+    if ((sn & SNAP_NORESTORE))
+      continue;
+    if (irt_isnum(ir->t)) {
+#if LJ_SOFTFP
+      Reg tmp;
+      RegSet allow = rset_exclude(RSET_GPR, RID_BASE);
+      /* LJ_SOFTFP: must be a number constant. */
+      lj_assertA(irref_isk(ref), "unsplit FP op");
+      tmp = ra_allock(as, (int32_t)ir_knum(ir)->u32.lo, allow);
+      emit_tai(as, PPCI_STW, tmp, RID_BASE, ofs+(LJ_BE?4:0));
+      if (rset_test(as->freeset, tmp+1)) allow = RID2RSET(tmp+1);
+      tmp = ra_allock(as, (int32_t)ir_knum(ir)->u32.hi, allow);
+      emit_tai(as, PPCI_STW, tmp, RID_BASE, ofs+(LJ_BE?0:4));
+#else
+      Reg src = ra_alloc1(as, ref, RSET_FPR);
+      emit_fai(as, PPCI_STFD, src, RID_BASE, ofs);
+#endif
+    } else {
+      Reg type;
+      RegSet allow = rset_exclude(RSET_GPR, RID_BASE);
+      lj_assertA(irt_ispri(ir->t) || irt_isaddr(ir->t) || irt_isinteger(ir->t),
+		 "restore of IR type %d", irt_type(ir->t));
+      if (!irt_ispri(ir->t)) {
+	Reg src = ra_alloc1(as, ref, allow);
+	rset_clear(allow, src);
+	emit_tai(as, PPCI_STW, src, RID_BASE, ofs+4);
+      }
+      if ((sn & (SNAP_CONT|SNAP_FRAME))) {
+	if (s == 0) continue;  /* Do not overwrite link to previous frame. */
+	type = ra_allock(as, (int32_t)(*flinks--), allow);
+#if LJ_SOFTFP
+      } else if ((sn & SNAP_SOFTFPNUM)) {
+	type = ra_alloc1(as, ref+1, rset_exclude(RSET_GPR, RID_BASE));
+#endif
+      } else if ((sn & SNAP_KEYINDEX)) {
+	type = ra_allock(as, (int32_t)LJ_KEYINDEX, allow);
+      } else {
+	type = ra_allock(as, (int32_t)irt_toitype(ir->t), allow);
+      }
+      emit_tai(as, PPCI_STW, type, RID_BASE, ofs);
+    }
+    checkmclim(as);
+  }
+  lj_assertA(map + nent == flinks, "inconsistent frames in snapshot");
+}
+
+/* -- GC handling --------------------------------------------------------- */
+
+/* Marker to prevent patching the GC check exit. */
+#define PPC_NOPATCH_GC_CHECK	PPCI_ORIS
+
+/* Check GC threshold and do one or more GC steps. */
+static void asm_gc_check(ASMState *as)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_step_jit];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg tmp;
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  /* Exit trace if in GCSatomic or GCSfinalize. Avoids syncing GC objects. */
+  asm_guardcc(as, CC_NE);  /* Assumes asm_snap_prep() already done. */
+  *--as->mcp = PPC_NOPATCH_GC_CHECK;
+  emit_ai(as, PPCI_CMPWI, RID_RET, 0);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ASMREF_TMP2;  /* MSize steps     */
+  asm_gencall(as, ci, args);
+  emit_tai(as, PPCI_ADDI, ra_releasetmp(as, ASMREF_TMP1), RID_JGL, -32768);
+  tmp = ra_releasetmp(as, ASMREF_TMP2);
+  emit_loadi(as, tmp, as->gcsteps);
+  /* Jump around GC step if GC total < GC threshold. */
+  emit_condbranch(as, PPCI_BC|PPCF_Y, CC_LT, l_end);
+  emit_ab(as, PPCI_CMPLW, RID_TMP, tmp);
+  emit_getgl(as, tmp, gc.threshold);
+  emit_getgl(as, RID_TMP, gc.total);
+  as->gcsteps = 0;
+  checkmclim(as);
+}
+
+/* -- Loop handling ------------------------------------------------------- */
+
+/* Fixup the loop branch. */
+static void asm_loop_fixup(ASMState *as)
+{
+  MCode *p = as->mctop;
+  MCode *target = as->mcp;
+  if (as->loopinv) {  /* Inverted loop branch? */
+    /* asm_guardcc already inverted the cond branch and patched the final b. */
+    p[-2] = (p[-2] & (0xffff0000u & ~PPCF_Y)) | (((target-p+2) & 0x3fffu) << 2);
+  } else {
+    p[-1] = PPCI_B|(((target-p+1)&0x00ffffffu)<<2);
+  }
+}
+
+/* Fixup the tail of the loop. */
+static void asm_loop_tail_fixup(ASMState *as)
+{
+  UNUSED(as);  /* Nothing to do. */
+}
+
+/* -- Head of trace ------------------------------------------------------- */
+
+/* Coalesce BASE register for a root trace. */
+static void asm_head_root_base(ASMState *as)
+{
+  IRIns *ir = IR(REF_BASE);
+  Reg r = ir->r;
+  if (ra_hasreg(r)) {
+    ra_free(as, r);
+    if (rset_test(as->modset, r) || irt_ismarked(ir->t))
+      ir->r = RID_INIT;  /* No inheritance for modified BASE register. */
+    if (r != RID_BASE)
+      emit_mr(as, r, RID_BASE);
+  }
+}
+
+/* Coalesce BASE register for a side trace. */
+static RegSet asm_head_side_base(ASMState *as, IRIns *irp, RegSet allow)
+{
+  IRIns *ir = IR(REF_BASE);
+  Reg r = ir->r;
+  if (ra_hasreg(r)) {
+    ra_free(as, r);
+    if (rset_test(as->modset, r) || irt_ismarked(ir->t))
+      ir->r = RID_INIT;  /* No inheritance for modified BASE register. */
+    if (irp->r == r) {
+      rset_clear(allow, r);  /* Mark same BASE register as coalesced. */
+    } else if (ra_hasreg(irp->r) && rset_test(as->freeset, irp->r)) {
+      rset_clear(allow, irp->r);
+      emit_mr(as, r, irp->r);  /* Move from coalesced parent reg. */
+    } else {
+      emit_getgl(as, r, jit_base);  /* Otherwise reload BASE. */
+    }
+  }
+  return allow;
+}
+
+/* -- Tail of trace ------------------------------------------------------- */
+
+/* Fixup the tail code. */
+static void asm_tail_fixup(ASMState *as, TraceNo lnk)
+{
+  MCode *p = as->mctop;
+  MCode *target;
+  int32_t spadj = as->T->spadjust;
+  if (spadj == 0) {
+    *--p = PPCI_NOP;
+    *--p = PPCI_NOP;
+    as->mctop = p;
+  } else {
+    /* Patch stack adjustment. */
+    lj_assertA(checki16(CFRAME_SIZE+spadj), "stack adjustment out of range");
+    p[-3] = PPCI_ADDI | PPCF_T(RID_TMP) | PPCF_A(RID_SP) | (CFRAME_SIZE+spadj);
+    p[-2] = PPCI_STWU | PPCF_T(RID_TMP) | PPCF_A(RID_SP) | spadj;
+  }
+  /* Patch exit branch. */
+  target = lnk ? traceref(as->J, lnk)->mcode : (MCode *)lj_vm_exit_interp;
+  p[-1] = PPCI_B|(((target-p+1)&0x00ffffffu)<<2);
+}
+
+/* Prepare tail of code. */
+static void asm_tail_prep(ASMState *as)
+{
+  MCode *p = as->mctop - 1;  /* Leave room for exit branch. */
+  if (as->loopref) {
+    as->invmcp = as->mcp = p;
+  } else {
+    as->mcp = p-2;  /* Leave room for stack pointer adjustment. */
+    as->invmcp = NULL;
+  }
+}
+
+/* -- Trace setup --------------------------------------------------------- */
+
+/* Ensure there are enough stack slots for call arguments. */
+static Reg asm_setup_call_slots(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  uint32_t i, nargs = CCI_XNARGS(ci);
+  int nslots = 2, ngpr = REGARG_NUMGPR, nfpr = REGARG_NUMFPR;
+  asm_collectargs(as, ir, ci, args);
+  for (i = 0; i < nargs; i++)
+    if (!LJ_SOFTFP && args[i] && irt_isfp(IR(args[i])->t)) {
+      if (nfpr > 0) nfpr--; else nslots = (nslots+3) & ~1;
+    } else {
+      if (ngpr > 0) ngpr--; else nslots++;
+    }
+  if (nslots > as->evenspill)  /* Leave room for args in stack slots. */
+    as->evenspill = nslots;
+  return (!LJ_SOFTFP && irt_isfp(ir->t)) ? REGSP_HINT(RID_FPRET) :
+					   REGSP_HINT(RID_RET);
+}
+
+static void asm_setup_target(ASMState *as)
+{
+  asm_exitstub_setup(as, as->T->nsnap + (as->parent ? 1 : 0));
+}
+
+/* -- Trace patching ------------------------------------------------------ */
+
+/* Patch exit jumps of existing machine code to a new target. */
+void lj_asm_patchexit(jit_State *J, GCtrace *T, ExitNo exitno, MCode *target)
+{
+  MCode *p = T->mcode;
+  MCode *pe = (MCode *)((char *)p + T->szmcode);
+  MCode *px = exitstub_trace_addr(T, exitno);
+  MCode *cstart = NULL;
+  MCode *mcarea = lj_mcode_patch(J, p, 0);
+  int clearso = 0, patchlong = 1;
+  for (; p < pe; p++) {
+    /* Look for exitstub branch, try to replace with branch to target. */
+    uint32_t ins = *p;
+    if ((ins & 0xfc000000u) == 0x40000000u &&
+	((ins ^ ((char *)px-(char *)p)) & 0xffffu) == 0) {
+      ptrdiff_t delta = (char *)target - (char *)p;
+      if (((ins >> 16) & 3) == (CC_SO&3)) {
+	clearso = sizeof(MCode);
+	delta -= sizeof(MCode);
+      }
+      /* Many, but not all short-range branches can be patched directly. */
+      if (p[-1] == PPC_NOPATCH_GC_CHECK) {
+	patchlong = 0;
+      } else if (((delta + 0x8000) >> 16) == 0) {
+	*p = (ins & 0xffdf0000u) | ((uint32_t)delta & 0xffffu) |
+	     ((delta & 0x8000) * (PPCF_Y/0x8000));
+	if (!cstart) cstart = p;
+      }
+    } else if ((ins & 0xfc000000u) == PPCI_B &&
+	       ((ins ^ ((char *)px-(char *)p)) & 0x03ffffffu) == 0) {
+      ptrdiff_t delta = (char *)target - (char *)p;
+      lj_assertJ(((delta + 0x02000000) >> 26) == 0,
+		 "branch target out of range");
+      *p = PPCI_B | ((uint32_t)delta & 0x03ffffffu);
+      if (!cstart) cstart = p;
+    }
+  }
+  /* Always patch long-range branch in exit stub itself. Except, if we can't. */
+  if (patchlong) {
+    ptrdiff_t delta = (char *)target - (char *)px - clearso;
+    lj_assertJ(((delta + 0x02000000) >> 26) == 0,
+	       "branch target out of range");
+    *px = PPCI_B | ((uint32_t)delta & 0x03ffffffu);
+  }
+  if (!cstart) cstart = px;
+  lj_mcode_sync(cstart, px+1);
+  if (clearso) {  /* Extend the current trace. Ugly workaround. */
+    MCode *pp = J->cur.mcode;
+    J->cur.szmcode += sizeof(MCode);
+    *--pp = PPCI_MCRXR;  /* Clear SO flag. */
+    J->cur.mcode = pp;
+    lj_mcode_sync(pp, pp+1);
+  }
+  lj_mcode_patch(J, mcarea, 1);
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_asm_x86.h b/libs/luajit-cmake/luajit/src/lj_asm_x86.h
new file mode 100644
index 0000000..2bf9d93
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_asm_x86.h
@@ -0,0 +1,3125 @@
+/*
+** x86/x64 IR assembler (SSA IR -> machine code).
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* -- Guard handling ------------------------------------------------------ */
+
+/* Generate an exit stub group at the bottom of the reserved MCode memory. */
+static MCode *asm_exitstub_gen(ASMState *as, ExitNo group)
+{
+  ExitNo i, groupofs = (group*EXITSTUBS_PER_GROUP) & 0xff;
+  MCode *mxp = as->mcbot;
+  MCode *mxpstart = mxp;
+  if (mxp + (2+2)*EXITSTUBS_PER_GROUP+8+5 >= as->mctop)
+    asm_mclimit(as);
+  /* Push low byte of exitno for each exit stub. */
+  *mxp++ = XI_PUSHi8; *mxp++ = (MCode)groupofs;
+  for (i = 1; i < EXITSTUBS_PER_GROUP; i++) {
+    *mxp++ = XI_JMPs; *mxp++ = (MCode)((2+2)*(EXITSTUBS_PER_GROUP - i) - 2);
+    *mxp++ = XI_PUSHi8; *mxp++ = (MCode)(groupofs + i);
+  }
+  /* Push the high byte of the exitno for each exit stub group. */
+  *mxp++ = XI_PUSHi8; *mxp++ = (MCode)((group*EXITSTUBS_PER_GROUP)>>8);
+#if !LJ_GC64
+  /* Store DISPATCH at original stack slot 0. Account for the two push ops. */
+  *mxp++ = XI_MOVmi;
+  *mxp++ = MODRM(XM_OFS8, 0, RID_ESP);
+  *mxp++ = MODRM(XM_SCALE1, RID_ESP, RID_ESP);
+  *mxp++ = 2*sizeof(void *);
+  *(int32_t *)mxp = ptr2addr(J2GG(as->J)->dispatch); mxp += 4;
+#endif
+  /* Jump to exit handler which fills in the ExitState. */
+  *mxp++ = XI_JMP; mxp += 4;
+  *((int32_t *)(mxp-4)) = jmprel(as->J, mxp, (MCode *)(void *)lj_vm_exit_handler);
+  /* Commit the code for this group (even if assembly fails later on). */
+  lj_mcode_commitbot(as->J, mxp);
+  as->mcbot = mxp;
+  as->mclim = as->mcbot + MCLIM_REDZONE;
+  return mxpstart;
+}
+
+/* Setup all needed exit stubs. */
+static void asm_exitstub_setup(ASMState *as, ExitNo nexits)
+{
+  ExitNo i;
+  if (nexits >= EXITSTUBS_PER_GROUP*LJ_MAX_EXITSTUBGR)
+    lj_trace_err(as->J, LJ_TRERR_SNAPOV);
+  for (i = 0; i < (nexits+EXITSTUBS_PER_GROUP-1)/EXITSTUBS_PER_GROUP; i++)
+    if (as->J->exitstubgroup[i] == NULL)
+      as->J->exitstubgroup[i] = asm_exitstub_gen(as, i);
+}
+
+/* Emit conditional branch to exit for guard.
+** It's important to emit this *after* all registers have been allocated,
+** because rematerializations may invalidate the flags.
+*/
+static void asm_guardcc(ASMState *as, int cc)
+{
+  MCode *target = exitstub_addr(as->J, as->snapno);
+  MCode *p = as->mcp;
+  if (LJ_UNLIKELY(p == as->invmcp)) {
+    as->loopinv = 1;
+    *(int32_t *)(p+1) = jmprel(as->J, p+5, target);
+    target = p;
+    cc ^= 1;
+    if (as->realign) {
+      if (LJ_GC64 && LJ_UNLIKELY(as->mrm.base == RID_RIP))
+	as->mrm.ofs += 2;  /* Fixup RIP offset for pending fused load. */
+      emit_sjcc(as, cc, target);
+      return;
+    }
+  }
+  if (LJ_GC64 && LJ_UNLIKELY(as->mrm.base == RID_RIP))
+    as->mrm.ofs += 6;  /* Fixup RIP offset for pending fused load. */
+  emit_jcc(as, cc, target);
+}
+
+/* -- Memory operand fusion ----------------------------------------------- */
+
+/* Limit linear search to this distance. Avoids O(n^2) behavior. */
+#define CONFLICT_SEARCH_LIM	31
+
+/* Check if a reference is a signed 32 bit constant. */
+static int asm_isk32(ASMState *as, IRRef ref, int32_t *k)
+{
+  if (irref_isk(ref)) {
+    IRIns *ir = IR(ref);
+#if LJ_GC64
+    if (ir->o == IR_KNULL || !irt_is64(ir->t)) {
+      *k = ir->i;
+      return 1;
+    } else if (checki32((int64_t)ir_k64(ir)->u64)) {
+      *k = (int32_t)ir_k64(ir)->u64;
+      return 1;
+    }
+#else
+    if (ir->o != IR_KINT64) {
+      *k = ir->i;
+      return 1;
+    } else if (checki32((int64_t)ir_kint64(ir)->u64)) {
+      *k = (int32_t)ir_kint64(ir)->u64;
+      return 1;
+    }
+#endif
+  }
+  return 0;
+}
+
+/* Check if there's no conflicting instruction between curins and ref.
+** Also avoid fusing loads if there are multiple references.
+*/
+static int noconflict(ASMState *as, IRRef ref, IROp conflict, int noload)
+{
+  IRIns *ir = as->ir;
+  IRRef i = as->curins;
+  if (i > ref + CONFLICT_SEARCH_LIM)
+    return 0;  /* Give up, ref is too far away. */
+  while (--i > ref) {
+    if (ir[i].o == conflict)
+      return 0;  /* Conflict found. */
+    else if (!noload && (ir[i].op1 == ref || ir[i].op2 == ref))
+      return 0;
+  }
+  return 1;  /* Ok, no conflict. */
+}
+
+/* Fuse array base into memory operand. */
+static IRRef asm_fuseabase(ASMState *as, IRRef ref)
+{
+  IRIns *irb = IR(ref);
+  as->mrm.ofs = 0;
+  if (irb->o == IR_FLOAD) {
+    IRIns *ira = IR(irb->op1);
+    lj_assertA(irb->op2 == IRFL_TAB_ARRAY, "expected FLOAD TAB_ARRAY");
+    /* We can avoid the FLOAD of t->array for colocated arrays. */
+    if (ira->o == IR_TNEW && ira->op1 <= LJ_MAX_COLOSIZE &&
+	!neverfuse(as) && noconflict(as, irb->op1, IR_NEWREF, 1)) {
+      as->mrm.ofs = (int32_t)sizeof(GCtab);  /* Ofs to colocated array. */
+      return irb->op1;  /* Table obj. */
+    }
+  } else if (irb->o == IR_ADD && irref_isk(irb->op2)) {
+    /* Fuse base offset (vararg load). */
+    as->mrm.ofs = IR(irb->op2)->i;
+    return irb->op1;
+  }
+  return ref;  /* Otherwise use the given array base. */
+}
+
+/* Fuse array reference into memory operand. */
+static void asm_fusearef(ASMState *as, IRIns *ir, RegSet allow)
+{
+  IRIns *irx;
+  lj_assertA(ir->o == IR_AREF, "expected AREF");
+  as->mrm.base = (uint8_t)ra_alloc1(as, asm_fuseabase(as, ir->op1), allow);
+  irx = IR(ir->op2);
+  if (irref_isk(ir->op2)) {
+    as->mrm.ofs += 8*irx->i;
+    as->mrm.idx = RID_NONE;
+  } else {
+    rset_clear(allow, as->mrm.base);
+    as->mrm.scale = XM_SCALE8;
+    /* Fuse a constant ADD (e.g. t[i+1]) into the offset.
+    ** Doesn't help much without ABCelim, but reduces register pressure.
+    */
+    if (!LJ_64 &&  /* Has bad effects with negative index on x64. */
+	mayfuse(as, ir->op2) && ra_noreg(irx->r) &&
+	irx->o == IR_ADD && irref_isk(irx->op2)) {
+      as->mrm.ofs += 8*IR(irx->op2)->i;
+      as->mrm.idx = (uint8_t)ra_alloc1(as, irx->op1, allow);
+    } else {
+      as->mrm.idx = (uint8_t)ra_alloc1(as, ir->op2, allow);
+    }
+  }
+}
+
+/* Fuse array/hash/upvalue reference into memory operand.
+** Caveat: this may allocate GPRs for the base/idx registers. Be sure to
+** pass the final allow mask, excluding any GPRs used for other inputs.
+** In particular: 2-operand GPR instructions need to call ra_dest() first!
+*/
+static void asm_fuseahuref(ASMState *as, IRRef ref, RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  if (ra_noreg(ir->r)) {
+    switch ((IROp)ir->o) {
+    case IR_AREF:
+      if (mayfuse(as, ref)) {
+	asm_fusearef(as, ir, allow);
+	return;
+      }
+      break;
+    case IR_HREFK:
+      if (mayfuse(as, ref)) {
+	as->mrm.base = (uint8_t)ra_alloc1(as, ir->op1, allow);
+	as->mrm.ofs = (int32_t)(IR(ir->op2)->op2 * sizeof(Node));
+	as->mrm.idx = RID_NONE;
+	return;
+      }
+      break;
+    case IR_UREFC:
+      if (irref_isk(ir->op1)) {
+	GCfunc *fn = ir_kfunc(IR(ir->op1));
+	GCupval *uv = &gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv;
+#if LJ_GC64
+	int64_t ofs = dispofs(as, &uv->tv);
+	if (checki32(ofs) && checki32(ofs+4)) {
+	  as->mrm.ofs = (int32_t)ofs;
+	  as->mrm.base = RID_DISPATCH;
+	  as->mrm.idx = RID_NONE;
+	  return;
+	}
+#else
+	as->mrm.ofs = ptr2addr(&uv->tv);
+	as->mrm.base = as->mrm.idx = RID_NONE;
+	return;
+#endif
+      }
+      break;
+    case IR_TMPREF:
+#if LJ_GC64
+      as->mrm.ofs = (int32_t)dispofs(as, &J2G(as->J)->tmptv);
+      as->mrm.base = RID_DISPATCH;
+      as->mrm.idx = RID_NONE;
+#else
+      as->mrm.ofs = igcptr(&J2G(as->J)->tmptv);
+      as->mrm.base = as->mrm.idx = RID_NONE;
+#endif
+      return;
+    default:
+      break;
+    }
+  }
+  as->mrm.base = (uint8_t)ra_alloc1(as, ref, allow);
+  as->mrm.ofs = 0;
+  as->mrm.idx = RID_NONE;
+}
+
+/* Fuse FLOAD/FREF reference into memory operand. */
+static void asm_fusefref(ASMState *as, IRIns *ir, RegSet allow)
+{
+  lj_assertA(ir->o == IR_FLOAD || ir->o == IR_FREF,
+	     "bad IR op %d", ir->o);
+  as->mrm.idx = RID_NONE;
+  if (ir->op1 == REF_NIL) {  /* FLOAD from GG_State with offset. */
+#if LJ_GC64
+    as->mrm.ofs = (int32_t)(ir->op2 << 2) - GG_OFS(dispatch);
+    as->mrm.base = RID_DISPATCH;
+#else
+    as->mrm.ofs = (int32_t)(ir->op2 << 2) + ptr2addr(J2GG(as->J));
+    as->mrm.base = RID_NONE;
+#endif
+    return;
+  }
+  as->mrm.ofs = field_ofs[ir->op2];
+  if (irref_isk(ir->op1)) {
+    IRIns *op1 = IR(ir->op1);
+#if LJ_GC64
+    if (ir->op1 == REF_NIL) {
+      as->mrm.ofs -= GG_OFS(dispatch);
+      as->mrm.base = RID_DISPATCH;
+      return;
+    } else if (op1->o == IR_KPTR || op1->o == IR_KKPTR) {
+      intptr_t ofs = dispofs(as, ir_kptr(op1));
+      if (checki32(as->mrm.ofs + ofs)) {
+	as->mrm.ofs += (int32_t)ofs;
+	as->mrm.base = RID_DISPATCH;
+	return;
+      }
+    }
+#else
+    as->mrm.ofs += op1->i;
+    as->mrm.base = RID_NONE;
+    return;
+#endif
+  }
+  as->mrm.base = (uint8_t)ra_alloc1(as, ir->op1, allow);
+}
+
+/* Fuse string reference into memory operand. */
+static void asm_fusestrref(ASMState *as, IRIns *ir, RegSet allow)
+{
+  IRIns *irr;
+  lj_assertA(ir->o == IR_STRREF, "bad IR op %d", ir->o);
+  as->mrm.base = as->mrm.idx = RID_NONE;
+  as->mrm.scale = XM_SCALE1;
+  as->mrm.ofs = sizeof(GCstr);
+  if (!LJ_GC64 && irref_isk(ir->op1)) {
+    as->mrm.ofs += IR(ir->op1)->i;
+  } else {
+    Reg r = ra_alloc1(as, ir->op1, allow);
+    rset_clear(allow, r);
+    as->mrm.base = (uint8_t)r;
+  }
+  irr = IR(ir->op2);
+  if (irref_isk(ir->op2)) {
+    as->mrm.ofs += irr->i;
+  } else {
+    Reg r;
+    /* Fuse a constant add into the offset, e.g. string.sub(s, i+10). */
+    if (!LJ_64 &&  /* Has bad effects with negative index on x64. */
+	mayfuse(as, ir->op2) && irr->o == IR_ADD && irref_isk(irr->op2)) {
+      as->mrm.ofs += IR(irr->op2)->i;
+      r = ra_alloc1(as, irr->op1, allow);
+    } else {
+      r = ra_alloc1(as, ir->op2, allow);
+    }
+    if (as->mrm.base == RID_NONE)
+      as->mrm.base = (uint8_t)r;
+    else
+      as->mrm.idx = (uint8_t)r;
+  }
+}
+
+static void asm_fusexref(ASMState *as, IRRef ref, RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  as->mrm.idx = RID_NONE;
+  if (ir->o == IR_KPTR || ir->o == IR_KKPTR) {
+#if LJ_GC64
+    intptr_t ofs = dispofs(as, ir_kptr(ir));
+    if (checki32(ofs)) {
+      as->mrm.ofs = (int32_t)ofs;
+      as->mrm.base = RID_DISPATCH;
+      return;
+    }
+  } if (0) {
+#else
+    as->mrm.ofs = ir->i;
+    as->mrm.base = RID_NONE;
+  } else if (ir->o == IR_STRREF) {
+    asm_fusestrref(as, ir, allow);
+#endif
+  } else {
+    as->mrm.ofs = 0;
+    if (canfuse(as, ir) && ir->o == IR_ADD && ra_noreg(ir->r)) {
+      /* Gather (base+idx*sz)+ofs as emitted by cdata ptr/array indexing. */
+      IRIns *irx;
+      IRRef idx;
+      Reg r;
+      if (asm_isk32(as, ir->op2, &as->mrm.ofs)) {  /* Recognize x+ofs. */
+	ref = ir->op1;
+	ir = IR(ref);
+	if (!(ir->o == IR_ADD && canfuse(as, ir) && ra_noreg(ir->r)))
+	  goto noadd;
+      }
+      as->mrm.scale = XM_SCALE1;
+      idx = ir->op1;
+      ref = ir->op2;
+      irx = IR(idx);
+      if (!(irx->o == IR_BSHL || irx->o == IR_ADD)) {  /* Try other operand. */
+	idx = ir->op2;
+	ref = ir->op1;
+	irx = IR(idx);
+      }
+      if (canfuse(as, irx) && ra_noreg(irx->r)) {
+	if (irx->o == IR_BSHL && irref_isk(irx->op2) && IR(irx->op2)->i <= 3) {
+	  /* Recognize idx<<b with b = 0-3, corresponding to sz = (1),2,4,8. */
+	  idx = irx->op1;
+	  as->mrm.scale = (uint8_t)(IR(irx->op2)->i << 6);
+	} else if (irx->o == IR_ADD && irx->op1 == irx->op2) {
+	  /* FOLD does idx*2 ==> idx<<1 ==> idx+idx. */
+	  idx = irx->op1;
+	  as->mrm.scale = XM_SCALE2;
+	}
+      }
+      r = ra_alloc1(as, idx, allow);
+      rset_clear(allow, r);
+      as->mrm.idx = (uint8_t)r;
+    }
+  noadd:
+    as->mrm.base = (uint8_t)ra_alloc1(as, ref, allow);
+  }
+}
+
+/* Fuse load of 64 bit IR constant into memory operand. */
+static Reg asm_fuseloadk64(ASMState *as, IRIns *ir)
+{
+  const uint64_t *k = &ir_k64(ir)->u64;
+  if (!LJ_GC64 || checki32((intptr_t)k)) {
+    as->mrm.ofs = ptr2addr(k);
+    as->mrm.base = RID_NONE;
+#if LJ_GC64
+  } else if (checki32(dispofs(as, k))) {
+    as->mrm.ofs = (int32_t)dispofs(as, k);
+    as->mrm.base = RID_DISPATCH;
+  } else if (checki32(mcpofs(as, k)) && checki32(mcpofs(as, k+1)) &&
+	     checki32(mctopofs(as, k)) && checki32(mctopofs(as, k+1))) {
+    as->mrm.ofs = (int32_t)mcpofs(as, k);
+    as->mrm.base = RID_RIP;
+  } else {  /* Intern 64 bit constant at bottom of mcode. */
+    if (ir->i) {
+      lj_assertA(*k == *(uint64_t*)(as->mctop - ir->i),
+		 "bad interned 64 bit constant");
+    } else {
+      while ((uintptr_t)as->mcbot & 7) *as->mcbot++ = XI_INT3;
+      *(uint64_t*)as->mcbot = *k;
+      ir->i = (int32_t)(as->mctop - as->mcbot);
+      as->mcbot += 8;
+      as->mclim = as->mcbot + MCLIM_REDZONE;
+      lj_mcode_commitbot(as->J, as->mcbot);
+    }
+    as->mrm.ofs = (int32_t)mcpofs(as, as->mctop - ir->i);
+    as->mrm.base = RID_RIP;
+#endif
+  }
+  as->mrm.idx = RID_NONE;
+  return RID_MRM;
+}
+
+/* Fuse load into memory operand.
+**
+** Important caveat: this may emit RIP-relative loads! So don't place any
+** code emitters between this function and the use of its result.
+** The only permitted exception is asm_guardcc().
+*/
+static Reg asm_fuseload(ASMState *as, IRRef ref, RegSet allow)
+{
+  IRIns *ir = IR(ref);
+  if (ra_hasreg(ir->r)) {
+    if (allow != RSET_EMPTY) {  /* Fast path. */
+      ra_noweak(as, ir->r);
+      return ir->r;
+    }
+  fusespill:
+    /* Force a spill if only memory operands are allowed (asm_x87load). */
+    as->mrm.base = RID_ESP;
+    as->mrm.ofs = ra_spill(as, ir);
+    as->mrm.idx = RID_NONE;
+    return RID_MRM;
+  }
+  if (ir->o == IR_KNUM) {
+    RegSet avail = as->freeset & ~as->modset & RSET_FPR;
+    lj_assertA(allow != RSET_EMPTY, "no register allowed");
+    if (!(avail & (avail-1)))  /* Fuse if less than two regs available. */
+      return asm_fuseloadk64(as, ir);
+  } else if (ref == REF_BASE || ir->o == IR_KINT64) {
+    RegSet avail = as->freeset & ~as->modset & RSET_GPR;
+    lj_assertA(allow != RSET_EMPTY, "no register allowed");
+    if (!(avail & (avail-1))) {  /* Fuse if less than two regs available. */
+      if (ref == REF_BASE) {
+#if LJ_GC64
+	as->mrm.ofs = (int32_t)dispofs(as, &J2G(as->J)->jit_base);
+	as->mrm.base = RID_DISPATCH;
+#else
+	as->mrm.ofs = ptr2addr(&J2G(as->J)->jit_base);
+	as->mrm.base = RID_NONE;
+#endif
+	as->mrm.idx = RID_NONE;
+	return RID_MRM;
+      } else {
+	return asm_fuseloadk64(as, ir);
+      }
+    }
+  } else if (mayfuse(as, ref)) {
+    RegSet xallow = (allow & RSET_GPR) ? allow : RSET_GPR;
+    if (ir->o == IR_SLOAD) {
+      if (!(ir->op2 & (IRSLOAD_PARENT|IRSLOAD_CONVERT)) &&
+	  noconflict(as, ref, IR_RETF, 0) &&
+	  !(LJ_GC64 && irt_isaddr(ir->t))) {
+	as->mrm.base = (uint8_t)ra_alloc1(as, REF_BASE, xallow);
+	as->mrm.ofs = 8*((int32_t)ir->op1-1-LJ_FR2) +
+		      (!LJ_FR2 && (ir->op2 & IRSLOAD_FRAME) ? 4 : 0);
+	as->mrm.idx = RID_NONE;
+	return RID_MRM;
+      }
+    } else if (ir->o == IR_FLOAD) {
+      /* Generic fusion is only ok for 32 bit operand (but see asm_comp). */
+      if ((irt_isint(ir->t) || irt_isu32(ir->t) || irt_isaddr(ir->t)) &&
+	  noconflict(as, ref, IR_FSTORE, 0)) {
+	asm_fusefref(as, ir, xallow);
+	return RID_MRM;
+      }
+    } else if (ir->o == IR_ALOAD || ir->o == IR_HLOAD || ir->o == IR_ULOAD) {
+      if (noconflict(as, ref, ir->o + IRDELTA_L2S, 0) &&
+	  !(LJ_GC64 && irt_isaddr(ir->t))) {
+	asm_fuseahuref(as, ir->op1, xallow);
+	return RID_MRM;
+      }
+    } else if (ir->o == IR_XLOAD) {
+      /* Generic fusion is not ok for 8/16 bit operands (but see asm_comp).
+      ** Fusing unaligned memory operands is ok on x86 (except for SIMD types).
+      */
+      if ((!irt_typerange(ir->t, IRT_I8, IRT_U16)) &&
+	  noconflict(as, ref, IR_XSTORE, 0)) {
+	asm_fusexref(as, ir->op1, xallow);
+	return RID_MRM;
+      }
+    } else if (ir->o == IR_VLOAD && IR(ir->op1)->o == IR_AREF &&
+	       !(LJ_GC64 && irt_isaddr(ir->t))) {
+      asm_fuseahuref(as, ir->op1, xallow);
+      as->mrm.ofs += 8 * ir->op2;
+      return RID_MRM;
+    }
+  }
+  if (ir->o == IR_FLOAD && ir->op1 == REF_NIL) {
+    asm_fusefref(as, ir, RSET_EMPTY);
+    return RID_MRM;
+  }
+  if (!(as->freeset & allow) && !emit_canremat(ref) &&
+      (allow == RSET_EMPTY || ra_hasspill(ir->s) || iscrossref(as, ref)))
+    goto fusespill;
+  return ra_allocref(as, ref, allow);
+}
+
+#if LJ_64
+/* Don't fuse a 32 bit load into a 64 bit operation. */
+static Reg asm_fuseloadm(ASMState *as, IRRef ref, RegSet allow, int is64)
+{
+  if (is64 && !irt_is64(IR(ref)->t))
+    return ra_alloc1(as, ref, allow);
+  return asm_fuseload(as, ref, allow);
+}
+#else
+#define asm_fuseloadm(as, ref, allow, is64)  asm_fuseload(as, (ref), (allow))
+#endif
+
+/* -- Calls --------------------------------------------------------------- */
+
+/* Count the required number of stack slots for a call. */
+static int asm_count_call_slots(ASMState *as, const CCallInfo *ci, IRRef *args)
+{
+  uint32_t i, nargs = CCI_XNARGS(ci);
+  int nslots = 0;
+#if LJ_64
+  if (LJ_ABI_WIN) {
+    nslots = (int)(nargs*2);  /* Only matters for more than four args. */
+  } else {
+    int ngpr = REGARG_NUMGPR, nfpr = REGARG_NUMFPR;
+    for (i = 0; i < nargs; i++)
+      if (args[i] && irt_isfp(IR(args[i])->t)) {
+	if (nfpr > 0) nfpr--; else nslots += 2;
+      } else {
+	if (ngpr > 0) ngpr--; else nslots += 2;
+      }
+  }
+#else
+  int ngpr = 0;
+  if ((ci->flags & CCI_CC_MASK) == CCI_CC_FASTCALL)
+    ngpr = 2;
+  else if ((ci->flags & CCI_CC_MASK) == CCI_CC_THISCALL)
+    ngpr = 1;
+  for (i = 0; i < nargs; i++)
+    if (args[i] && irt_isfp(IR(args[i])->t)) {
+      nslots += irt_isnum(IR(args[i])->t) ? 2 : 1;
+    } else {
+      if (ngpr > 0) ngpr--; else nslots++;
+    }
+#endif
+  return nslots;
+}
+
+/* Generate a call to a C function. */
+static void asm_gencall(ASMState *as, const CCallInfo *ci, IRRef *args)
+{
+  uint32_t n, nargs = CCI_XNARGS(ci);
+  int32_t ofs = STACKARG_OFS;
+#if LJ_64
+  uint32_t gprs = REGARG_GPRS;
+  Reg fpr = REGARG_FIRSTFPR;
+#if !LJ_ABI_WIN
+  MCode *patchnfpr = NULL;
+#endif
+#else
+  uint32_t gprs = 0;
+  if ((ci->flags & CCI_CC_MASK) != CCI_CC_CDECL) {
+    if ((ci->flags & CCI_CC_MASK) == CCI_CC_THISCALL)
+      gprs = (REGARG_GPRS & 31);
+    else if ((ci->flags & CCI_CC_MASK) == CCI_CC_FASTCALL)
+      gprs = REGARG_GPRS;
+  }
+#endif
+  if ((void *)ci->func)
+    emit_call(as, ci->func);
+#if LJ_64
+  if ((ci->flags & CCI_VARARG)) {  /* Special handling for vararg calls. */
+#if LJ_ABI_WIN
+    for (n = 0; n < 4 && n < nargs; n++) {
+      IRIns *ir = IR(args[n]);
+      if (irt_isfp(ir->t))  /* Duplicate FPRs in GPRs. */
+	emit_rr(as, XO_MOVDto, (irt_isnum(ir->t) ? REX_64 : 0) | (fpr+n),
+		((gprs >> (n*5)) & 31));  /* Either MOVD or MOVQ. */
+    }
+#else
+    patchnfpr = --as->mcp;  /* Indicate number of used FPRs in register al. */
+    *--as->mcp = XI_MOVrib | RID_EAX;
+#endif
+  }
+#endif
+  for (n = 0; n < nargs; n++) {  /* Setup args. */
+    IRRef ref = args[n];
+    IRIns *ir = IR(ref);
+    Reg r;
+#if LJ_64 && LJ_ABI_WIN
+    /* Windows/x64 argument registers are strictly positional. */
+    r = irt_isfp(ir->t) ? (fpr <= REGARG_LASTFPR ? fpr : 0) : (gprs & 31);
+    fpr++; gprs >>= 5;
+#elif LJ_64
+    /* POSIX/x64 argument registers are used in order of appearance. */
+    if (irt_isfp(ir->t)) {
+      r = fpr <= REGARG_LASTFPR ? fpr++ : 0;
+    } else {
+      r = gprs & 31; gprs >>= 5;
+    }
+#else
+    if (ref && irt_isfp(ir->t)) {
+      r = 0;
+    } else {
+      r = gprs & 31; gprs >>= 5;
+      if (!ref) continue;
+    }
+#endif
+    if (r) {  /* Argument is in a register. */
+      if (r < RID_MAX_GPR && ref < ASMREF_TMP1) {
+#if LJ_64
+	if (LJ_GC64 ? !(ir->o == IR_KINT || ir->o == IR_KNULL) : ir->o == IR_KINT64)
+	  emit_loadu64(as, r, ir_k64(ir)->u64);
+	else
+#endif
+	  emit_loadi(as, r, ir->i);
+      } else {
+	/* Must have been evicted. */
+	lj_assertA(rset_test(as->freeset, r), "reg %d not free", r);
+	if (ra_hasreg(ir->r)) {
+	  ra_noweak(as, ir->r);
+	  emit_movrr(as, ir, r, ir->r);
+	} else {
+	  ra_allocref(as, ref, RID2RSET(r));
+	}
+      }
+    } else if (irt_isfp(ir->t)) {  /* FP argument is on stack. */
+      lj_assertA(!(irt_isfloat(ir->t) && irref_isk(ref)),
+		 "unexpected float constant");
+      if (LJ_32 && (ofs & 4) && irref_isk(ref)) {
+	/* Split stores for unaligned FP consts. */
+	emit_movmroi(as, RID_ESP, ofs, (int32_t)ir_knum(ir)->u32.lo);
+	emit_movmroi(as, RID_ESP, ofs+4, (int32_t)ir_knum(ir)->u32.hi);
+      } else {
+	r = ra_alloc1(as, ref, RSET_FPR);
+	emit_rmro(as, irt_isnum(ir->t) ? XO_MOVSDto : XO_MOVSSto,
+		  r, RID_ESP, ofs);
+      }
+      ofs += (LJ_32 && irt_isfloat(ir->t)) ? 4 : 8;
+    } else {  /* Non-FP argument is on stack. */
+      if (LJ_32 && ref < ASMREF_TMP1) {
+	emit_movmroi(as, RID_ESP, ofs, ir->i);
+      } else {
+	r = ra_alloc1(as, ref, RSET_GPR);
+	emit_movtomro(as, REX_64 + r, RID_ESP, ofs);
+      }
+      ofs += sizeof(intptr_t);
+    }
+    checkmclim(as);
+  }
+#if LJ_64 && !LJ_ABI_WIN
+  if (patchnfpr) *patchnfpr = fpr - REGARG_FIRSTFPR;
+#endif
+}
+
+/* Setup result reg/sp for call. Evict scratch regs. */
+static void asm_setupresult(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  RegSet drop = RSET_SCRATCH;
+  int hiop = ((ir+1)->o == IR_HIOP && !irt_isnil((ir+1)->t));
+  if ((ci->flags & CCI_NOFPRCLOBBER))
+    drop &= ~RSET_FPR;
+  if (ra_hasreg(ir->r))
+    rset_clear(drop, ir->r);  /* Dest reg handled below. */
+  if (hiop && ra_hasreg((ir+1)->r))
+    rset_clear(drop, (ir+1)->r);  /* Dest reg handled below. */
+  ra_evictset(as, drop);  /* Evictions must be performed first. */
+  if (ra_used(ir)) {
+    if (irt_isfp(ir->t)) {
+      int32_t ofs = sps_scale(ir->s);  /* Use spill slot or temp slots. */
+#if LJ_64
+      if ((ci->flags & CCI_CASTU64)) {
+	Reg dest = ir->r;
+	if (ra_hasreg(dest)) {
+	  ra_free(as, dest);
+	  ra_modified(as, dest);
+	  emit_rr(as, XO_MOVD, dest|REX_64, RID_RET);  /* Really MOVQ. */
+	}
+	if (ofs) emit_movtomro(as, RID_RET|REX_64, RID_ESP, ofs);
+      } else {
+	ra_destreg(as, ir, RID_FPRET);
+      }
+#else
+      /* Number result is in x87 st0 for x86 calling convention. */
+      Reg dest = ir->r;
+      if (ra_hasreg(dest)) {
+	ra_free(as, dest);
+	ra_modified(as, dest);
+	emit_rmro(as, irt_isnum(ir->t) ? XO_MOVSD : XO_MOVSS,
+		  dest, RID_ESP, ofs);
+      }
+      if ((ci->flags & CCI_CASTU64)) {
+	emit_movtomro(as, RID_RETLO, RID_ESP, ofs);
+	emit_movtomro(as, RID_RETHI, RID_ESP, ofs+4);
+      } else {
+	emit_rmro(as, irt_isnum(ir->t) ? XO_FSTPq : XO_FSTPd,
+		  irt_isnum(ir->t) ? XOg_FSTPq : XOg_FSTPd, RID_ESP, ofs);
+      }
+#endif
+    } else if (hiop) {
+      ra_destpair(as, ir);
+    } else {
+      lj_assertA(!irt_ispri(ir->t), "PRI dest");
+      ra_destreg(as, ir, RID_RET);
+    }
+  } else if (LJ_32 && irt_isfp(ir->t) && !(ci->flags & CCI_CASTU64)) {
+    emit_x87op(as, XI_FPOP);  /* Pop unused result from x87 st0. */
+  }
+}
+
+/* Return a constant function pointer or NULL for indirect calls. */
+static void *asm_callx_func(ASMState *as, IRIns *irf, IRRef func)
+{
+#if LJ_32
+  UNUSED(as);
+  if (irref_isk(func))
+    return (void *)irf->i;
+#else
+  if (irref_isk(func)) {
+    MCode *p;
+    if (irf->o == IR_KINT64)
+      p = (MCode *)(void *)ir_k64(irf)->u64;
+    else
+      p = (MCode *)(void *)(uintptr_t)(uint32_t)irf->i;
+    if (p - as->mcp == (int32_t)(p - as->mcp))
+      return p;  /* Call target is still in +-2GB range. */
+    /* Avoid the indirect case of emit_call(). Try to hoist func addr. */
+  }
+#endif
+  return NULL;
+}
+
+static void asm_callx(ASMState *as, IRIns *ir)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  CCallInfo ci;
+  IRRef func;
+  IRIns *irf;
+  int32_t spadj = 0;
+  ci.flags = asm_callx_flags(as, ir);
+  asm_collectargs(as, ir, &ci, args);
+  asm_setupresult(as, ir, &ci);
+#if LJ_32
+  /* Have to readjust stack after non-cdecl calls due to callee cleanup. */
+  if ((ci.flags & CCI_CC_MASK) != CCI_CC_CDECL)
+    spadj = 4 * asm_count_call_slots(as, &ci, args);
+#endif
+  func = ir->op2; irf = IR(func);
+  if (irf->o == IR_CARG) { func = irf->op1; irf = IR(func); }
+  ci.func = (ASMFunction)asm_callx_func(as, irf, func);
+  if (!(void *)ci.func) {
+    /* Use a (hoistable) non-scratch register for indirect calls. */
+    RegSet allow = (RSET_GPR & ~RSET_SCRATCH);
+    Reg r = ra_alloc1(as, func, allow);
+    if (LJ_32) emit_spsub(as, spadj);  /* Above code may cause restores! */
+    emit_rr(as, XO_GROUP5, XOg_CALL, r);
+  } else if (LJ_32) {
+    emit_spsub(as, spadj);
+  }
+  asm_gencall(as, &ci, args);
+}
+
+/* -- Returns ------------------------------------------------------------- */
+
+/* Return to lower frame. Guard that it goes to the right spot. */
+static void asm_retf(ASMState *as, IRIns *ir)
+{
+  Reg base = ra_alloc1(as, REF_BASE, RSET_GPR);
+#if LJ_FR2
+  Reg rpc = ra_scratch(as, rset_exclude(RSET_GPR, base));
+#endif
+  void *pc = ir_kptr(IR(ir->op2));
+  int32_t delta = 1+LJ_FR2+bc_a(*((const BCIns *)pc - 1));
+  as->topslot -= (BCReg)delta;
+  if ((int32_t)as->topslot < 0) as->topslot = 0;
+  irt_setmark(IR(REF_BASE)->t);  /* Children must not coalesce with BASE reg. */
+  emit_setgl(as, base, jit_base);
+  emit_addptr(as, base, -8*delta);
+  asm_guardcc(as, CC_NE);
+#if LJ_FR2
+  emit_rmro(as, XO_CMP, rpc|REX_GC64, base, -8);
+  emit_loadu64(as, rpc, u64ptr(pc));
+#else
+  emit_gmroi(as, XG_ARITHi(XOg_CMP), base, -4, ptr2addr(pc));
+#endif
+}
+
+/* -- Buffer operations --------------------------------------------------- */
+
+#if LJ_HASBUFFER
+static void asm_bufhdr_write(ASMState *as, Reg sb)
+{
+  Reg tmp = ra_scratch(as, rset_exclude(RSET_GPR, sb));
+  IRIns irgc;
+  irgc.ot = IRT(0, IRT_PGC);  /* GC type. */
+  emit_storeofs(as, &irgc, tmp, sb, offsetof(SBuf, L));
+  emit_opgl(as, XO_ARITH(XOg_OR), tmp|REX_GC64, cur_L);
+  emit_gri(as, XG_ARITHi(XOg_AND), tmp, SBUF_MASK_FLAG);
+  emit_loadofs(as, &irgc, tmp, sb, offsetof(SBuf, L));
+}
+#endif
+
+/* -- Type conversions ---------------------------------------------------- */
+
+static void asm_tointg(ASMState *as, IRIns *ir, Reg left)
+{
+  Reg tmp = ra_scratch(as, rset_exclude(RSET_FPR, left));
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  asm_guardcc(as, CC_P);
+  asm_guardcc(as, CC_NE);
+  emit_rr(as, XO_UCOMISD, left, tmp);
+  emit_rr(as, XO_CVTSI2SD, tmp, dest);
+  emit_rr(as, XO_XORPS, tmp, tmp);  /* Avoid partial register stall. */
+  emit_rr(as, XO_CVTTSD2SI, dest, left);
+  /* Can't fuse since left is needed twice. */
+}
+
+static void asm_tobit(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  Reg tmp = ra_noreg(IR(ir->op1)->r) ?
+	      ra_alloc1(as, ir->op1, RSET_FPR) :
+	      ra_scratch(as, RSET_FPR);
+  Reg right;
+  emit_rr(as, XO_MOVDto, tmp, dest);
+  right = asm_fuseload(as, ir->op2, rset_exclude(RSET_FPR, tmp));
+  emit_mrm(as, XO_ADDSD, tmp, right);
+  ra_left(as, tmp, ir->op1);
+}
+
+static void asm_conv(ASMState *as, IRIns *ir)
+{
+  IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+  int st64 = (st == IRT_I64 || st == IRT_U64 || (LJ_64 && st == IRT_P64));
+  int stfp = (st == IRT_NUM || st == IRT_FLOAT);
+  IRRef lref = ir->op1;
+  lj_assertA(irt_type(ir->t) != st, "inconsistent types for CONV");
+  lj_assertA(!(LJ_32 && (irt_isint64(ir->t) || st64)),
+	     "IR %04d has unsplit 64 bit type",
+	     (int)(ir - as->ir) - REF_BIAS);
+  if (irt_isfp(ir->t)) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    if (stfp) {  /* FP to FP conversion. */
+      Reg left = asm_fuseload(as, lref, RSET_FPR);
+      emit_mrm(as, st == IRT_NUM ? XO_CVTSD2SS : XO_CVTSS2SD, dest, left);
+      if (left == dest) return;  /* Avoid the XO_XORPS. */
+    } else if (LJ_32 && st == IRT_U32) {  /* U32 to FP conversion on x86. */
+      /* number = (2^52+2^51 .. u32) - (2^52+2^51) */
+      cTValue *k = &as->J->k64[LJ_K64_TOBIT];
+      Reg bias = ra_scratch(as, rset_exclude(RSET_FPR, dest));
+      if (irt_isfloat(ir->t))
+	emit_rr(as, XO_CVTSD2SS, dest, dest);
+      emit_rr(as, XO_SUBSD, dest, bias);  /* Subtract 2^52+2^51 bias. */
+      emit_rr(as, XO_XORPS, dest, bias);  /* Merge bias and integer. */
+      emit_rma(as, XO_MOVSD, bias, k);
+      emit_mrm(as, XO_MOVD, dest, asm_fuseload(as, lref, RSET_GPR));
+      return;
+    } else {  /* Integer to FP conversion. */
+      Reg left = (LJ_64 && (st == IRT_U32 || st == IRT_U64)) ?
+		 ra_alloc1(as, lref, RSET_GPR) :
+		 asm_fuseloadm(as, lref, RSET_GPR, st64);
+      if (LJ_64 && st == IRT_U64) {
+	MCLabel l_end = emit_label(as);
+	cTValue *k = &as->J->k64[LJ_K64_2P64];
+	emit_rma(as, XO_ADDSD, dest, k);  /* Add 2^64 to compensate. */
+	emit_sjcc(as, CC_NS, l_end);
+	emit_rr(as, XO_TEST, left|REX_64, left);  /* Check if u64 >= 2^63. */
+      }
+      emit_mrm(as, irt_isnum(ir->t) ? XO_CVTSI2SD : XO_CVTSI2SS,
+	       dest|((LJ_64 && (st64 || st == IRT_U32)) ? REX_64 : 0), left);
+    }
+    emit_rr(as, XO_XORPS, dest, dest);  /* Avoid partial register stall. */
+  } else if (stfp) {  /* FP to integer conversion. */
+    if (irt_isguard(ir->t)) {
+      /* Checked conversions are only supported from number to int. */
+      lj_assertA(irt_isint(ir->t) && st == IRT_NUM,
+		 "bad type for checked CONV");
+      asm_tointg(as, ir, ra_alloc1(as, lref, RSET_FPR));
+    } else {
+      Reg dest = ra_dest(as, ir, RSET_GPR);
+      x86Op op = st == IRT_NUM ? XO_CVTTSD2SI : XO_CVTTSS2SI;
+      if (LJ_64 ? irt_isu64(ir->t) : irt_isu32(ir->t)) {
+	/* LJ_64: For inputs >= 2^63 add -2^64, convert again. */
+	/* LJ_32: For inputs >= 2^31 add -2^31, convert again and add 2^31. */
+	Reg tmp = ra_noreg(IR(lref)->r) ? ra_alloc1(as, lref, RSET_FPR) :
+					  ra_scratch(as, RSET_FPR);
+	MCLabel l_end = emit_label(as);
+	if (LJ_32)
+	  emit_gri(as, XG_ARITHi(XOg_ADD), dest, (int32_t)0x80000000);
+	emit_rr(as, op, dest|REX_64, tmp);
+	if (st == IRT_NUM)
+	  emit_rma(as, XO_ADDSD, tmp, &as->J->k64[LJ_K64_M2P64_31]);
+	else
+	  emit_rma(as, XO_ADDSS, tmp, &as->J->k32[LJ_K32_M2P64_31]);
+	emit_sjcc(as, CC_NS, l_end);
+	emit_rr(as, XO_TEST, dest|REX_64, dest);  /* Check if dest negative. */
+	emit_rr(as, op, dest|REX_64, tmp);
+	ra_left(as, tmp, lref);
+      } else {
+	if (LJ_64 && irt_isu32(ir->t))
+	  emit_rr(as, XO_MOV, dest, dest);  /* Zero hiword. */
+	emit_mrm(as, op,
+		 dest|((LJ_64 &&
+			(irt_is64(ir->t) || irt_isu32(ir->t))) ? REX_64 : 0),
+		 asm_fuseload(as, lref, RSET_FPR));
+      }
+    }
+  } else if (st >= IRT_I8 && st <= IRT_U16) {  /* Extend to 32 bit integer. */
+    Reg left, dest = ra_dest(as, ir, RSET_GPR);
+    RegSet allow = RSET_GPR;
+    x86Op op;
+    lj_assertA(irt_isint(ir->t) || irt_isu32(ir->t), "bad type for CONV EXT");
+    if (st == IRT_I8) {
+      op = XO_MOVSXb; allow = RSET_GPR8; dest |= FORCE_REX;
+    } else if (st == IRT_U8) {
+      op = XO_MOVZXb; allow = RSET_GPR8; dest |= FORCE_REX;
+    } else if (st == IRT_I16) {
+      op = XO_MOVSXw;
+    } else {
+      op = XO_MOVZXw;
+    }
+    left = asm_fuseload(as, lref, allow);
+    /* Add extra MOV if source is already in wrong register. */
+    if (!LJ_64 && left != RID_MRM && !rset_test(allow, left)) {
+      Reg tmp = ra_scratch(as, allow);
+      emit_rr(as, op, dest, tmp);
+      emit_rr(as, XO_MOV, tmp, left);
+    } else {
+      emit_mrm(as, op, dest, left);
+    }
+  } else {  /* 32/64 bit integer conversions. */
+    if (LJ_32) {  /* Only need to handle 32/32 bit no-op (cast) on x86. */
+      Reg dest = ra_dest(as, ir, RSET_GPR);
+      ra_left(as, dest, lref);  /* Do nothing, but may need to move regs. */
+    } else if (irt_is64(ir->t)) {
+      Reg dest = ra_dest(as, ir, RSET_GPR);
+      if (st64 || !(ir->op2 & IRCONV_SEXT)) {
+	/* 64/64 bit no-op (cast) or 32 to 64 bit zero extension. */
+	ra_left(as, dest, lref);  /* Do nothing, but may need to move regs. */
+      } else {  /* 32 to 64 bit sign extension. */
+	Reg left = asm_fuseload(as, lref, RSET_GPR);
+	emit_mrm(as, XO_MOVSXd, dest|REX_64, left);
+      }
+    } else {
+      Reg dest = ra_dest(as, ir, RSET_GPR);
+      if (st64 && !(ir->op2 & IRCONV_NONE)) {
+	Reg left = asm_fuseload(as, lref, RSET_GPR);
+	/* This is either a 32 bit reg/reg mov which zeroes the hiword
+	** or a load of the loword from a 64 bit address.
+	*/
+	emit_mrm(as, XO_MOV, dest, left);
+      } else {  /* 32/32 bit no-op (cast). */
+	ra_left(as, dest, lref);  /* Do nothing, but may need to move regs. */
+      }
+    }
+  }
+}
+
+#if LJ_32 && LJ_HASFFI
+/* No SSE conversions to/from 64 bit on x86, so resort to ugly x87 code. */
+
+/* 64 bit integer to FP conversion in 32 bit mode. */
+static void asm_conv_fp_int64(ASMState *as, IRIns *ir)
+{
+  Reg hi = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg lo = ra_alloc1(as, (ir-1)->op1, rset_exclude(RSET_GPR, hi));
+  int32_t ofs = sps_scale(ir->s);  /* Use spill slot or temp slots. */
+  Reg dest = ir->r;
+  if (ra_hasreg(dest)) {
+    ra_free(as, dest);
+    ra_modified(as, dest);
+    emit_rmro(as, irt_isnum(ir->t) ? XO_MOVSD : XO_MOVSS, dest, RID_ESP, ofs);
+  }
+  emit_rmro(as, irt_isnum(ir->t) ? XO_FSTPq : XO_FSTPd,
+	    irt_isnum(ir->t) ? XOg_FSTPq : XOg_FSTPd, RID_ESP, ofs);
+  if (((ir-1)->op2 & IRCONV_SRCMASK) == IRT_U64) {
+    /* For inputs in [2^63,2^64-1] add 2^64 to compensate. */
+    MCLabel l_end = emit_label(as);
+    emit_rma(as, XO_FADDq, XOg_FADDq, &as->J->k64[LJ_K64_2P64]);
+    emit_sjcc(as, CC_NS, l_end);
+    emit_rr(as, XO_TEST, hi, hi);  /* Check if u64 >= 2^63. */
+  } else {
+    lj_assertA(((ir-1)->op2 & IRCONV_SRCMASK) == IRT_I64, "bad type for CONV");
+  }
+  emit_rmro(as, XO_FILDq, XOg_FILDq, RID_ESP, 0);
+  /* NYI: Avoid narrow-to-wide store-to-load forwarding stall. */
+  emit_rmro(as, XO_MOVto, hi, RID_ESP, 4);
+  emit_rmro(as, XO_MOVto, lo, RID_ESP, 0);
+}
+
+/* FP to 64 bit integer conversion in 32 bit mode. */
+static void asm_conv_int64_fp(ASMState *as, IRIns *ir)
+{
+  IRType st = (IRType)((ir-1)->op2 & IRCONV_SRCMASK);
+  IRType dt = (((ir-1)->op2 & IRCONV_DSTMASK) >> IRCONV_DSH);
+  Reg lo, hi;
+  lj_assertA(st == IRT_NUM || st == IRT_FLOAT, "bad type for CONV");
+  lj_assertA(dt == IRT_I64 || dt == IRT_U64, "bad type for CONV");
+  hi = ra_dest(as, ir, RSET_GPR);
+  lo = ra_dest(as, ir-1, rset_exclude(RSET_GPR, hi));
+  if (ra_used(ir-1)) emit_rmro(as, XO_MOV, lo, RID_ESP, 0);
+  /* NYI: Avoid wide-to-narrow store-to-load forwarding stall. */
+  if (!(as->flags & JIT_F_SSE3)) {  /* Set FPU rounding mode to default. */
+    emit_rmro(as, XO_FLDCW, XOg_FLDCW, RID_ESP, 4);
+    emit_rmro(as, XO_MOVto, lo, RID_ESP, 4);
+    emit_gri(as, XG_ARITHi(XOg_AND), lo, 0xf3ff);
+  }
+  if (dt == IRT_U64) {
+    /* For inputs in [2^63,2^64-1] add -2^64 and convert again. */
+    MCLabel l_pop, l_end = emit_label(as);
+    emit_x87op(as, XI_FPOP);
+    l_pop = emit_label(as);
+    emit_sjmp(as, l_end);
+    emit_rmro(as, XO_MOV, hi, RID_ESP, 4);
+    if ((as->flags & JIT_F_SSE3))
+      emit_rmro(as, XO_FISTTPq, XOg_FISTTPq, RID_ESP, 0);
+    else
+      emit_rmro(as, XO_FISTPq, XOg_FISTPq, RID_ESP, 0);
+    emit_rma(as, XO_FADDq, XOg_FADDq, &as->J->k64[LJ_K64_M2P64]);
+    emit_sjcc(as, CC_NS, l_pop);
+    emit_rr(as, XO_TEST, hi, hi);  /* Check if out-of-range (2^63). */
+  }
+  emit_rmro(as, XO_MOV, hi, RID_ESP, 4);
+  if ((as->flags & JIT_F_SSE3)) {  /* Truncation is easy with SSE3. */
+    emit_rmro(as, XO_FISTTPq, XOg_FISTTPq, RID_ESP, 0);
+  } else {  /* Otherwise set FPU rounding mode to truncate before the store. */
+    emit_rmro(as, XO_FISTPq, XOg_FISTPq, RID_ESP, 0);
+    emit_rmro(as, XO_FLDCW, XOg_FLDCW, RID_ESP, 0);
+    emit_rmro(as, XO_MOVtow, lo, RID_ESP, 0);
+    emit_rmro(as, XO_ARITHw(XOg_OR), lo, RID_ESP, 0);
+    emit_loadi(as, lo, 0xc00);
+    emit_rmro(as, XO_FNSTCW, XOg_FNSTCW, RID_ESP, 0);
+  }
+  if (dt == IRT_U64)
+    emit_x87op(as, XI_FDUP);
+  emit_mrm(as, st == IRT_NUM ? XO_FLDq : XO_FLDd,
+	   st == IRT_NUM ? XOg_FLDq: XOg_FLDd,
+	   asm_fuseload(as, ir->op1, RSET_EMPTY));
+}
+
+static void asm_conv64(ASMState *as, IRIns *ir)
+{
+  if (irt_isfp(ir->t))
+    asm_conv_fp_int64(as, ir);
+  else
+    asm_conv_int64_fp(as, ir);
+}
+#endif
+
+static void asm_strto(ASMState *as, IRIns *ir)
+{
+  /* Force a spill slot for the destination register (if any). */
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_strscan_num];
+  IRRef args[2];
+  RegSet drop = RSET_SCRATCH;
+  if ((drop & RSET_FPR) != RSET_FPR && ra_hasreg(ir->r))
+    rset_set(drop, ir->r);  /* WIN64 doesn't spill all FPRs. */
+  ra_evictset(as, drop);
+  asm_guardcc(as, CC_E);
+  emit_rr(as, XO_TEST, RID_RET, RID_RET);  /* Test return status. */
+  args[0] = ir->op1;      /* GCstr *str */
+  args[1] = ASMREF_TMP1;  /* TValue *n  */
+  asm_gencall(as, ci, args);
+  /* Store the result to the spill slot or temp slots. */
+  emit_rmro(as, XO_LEA, ra_releasetmp(as, ASMREF_TMP1)|REX_64,
+	    RID_ESP, sps_scale(ir->s));
+}
+
+/* -- Memory references --------------------------------------------------- */
+
+/* Get pointer to TValue. */
+static void asm_tvptr(ASMState *as, Reg dest, IRRef ref, MSize mode)
+{
+  if ((mode & IRTMPREF_IN1)) {
+    IRIns *ir = IR(ref);
+    if (irt_isnum(ir->t)) {
+      if (irref_isk(ref) && !(mode & IRTMPREF_OUT1)) {
+	/* Use the number constant itself as a TValue. */
+	emit_loada(as, dest, ir_knum(ir));
+	return;
+      }
+      emit_rmro(as, XO_MOVSDto, ra_alloc1(as, ref, RSET_FPR), dest, 0);
+    } else {
+#if LJ_GC64
+      if (irref_isk(ref)) {
+	TValue k;
+	lj_ir_kvalue(as->J->L, &k, ir);
+	emit_movmroi(as, dest, 4, k.u32.hi);
+	emit_movmroi(as, dest, 0, k.u32.lo);
+      } else {
+	/* TODO: 64 bit store + 32 bit load-modify-store is suboptimal. */
+	Reg src = ra_alloc1(as, ref, rset_exclude(RSET_GPR, dest));
+	if (irt_is64(ir->t)) {
+	  emit_u32(as, irt_toitype(ir->t) << 15);
+	  emit_rmro(as, XO_ARITHi, XOg_OR, dest, 4);
+	} else {
+	  emit_movmroi(as, dest, 4, (irt_toitype(ir->t) << 15));
+	}
+	emit_movtomro(as, REX_64IR(ir, src), dest, 0);
+      }
+#else
+      if (!irref_isk(ref)) {
+	Reg src = ra_alloc1(as, ref, rset_exclude(RSET_GPR, dest));
+	emit_movtomro(as, REX_64IR(ir, src), dest, 0);
+      } else if (!irt_ispri(ir->t)) {
+	emit_movmroi(as, dest, 0, ir->i);
+      }
+      if (!(LJ_64 && irt_islightud(ir->t)))
+	emit_movmroi(as, dest, 4, irt_toitype(ir->t));
+#endif
+    }
+  }
+  emit_loada(as, dest, &J2G(as->J)->tmptv); /* g->tmptv holds the TValue(s). */
+}
+
+static void asm_aref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  asm_fusearef(as, ir, RSET_GPR);
+  if (!(as->mrm.idx == RID_NONE && as->mrm.ofs == 0))
+    emit_mrm(as, XO_LEA, dest|REX_GC64, RID_MRM);
+  else if (as->mrm.base != dest)
+    emit_rr(as, XO_MOV, dest|REX_GC64, as->mrm.base);
+}
+
+/* Inlined hash lookup. Specialized for key type and for const keys.
+** The equivalent C code is:
+**   Node *n = hashkey(t, key);
+**   do {
+**     if (lj_obj_equal(&n->key, key)) return &n->val;
+**   } while ((n = nextnode(n)));
+**   return niltv(L);
+*/
+static void asm_href(ASMState *as, IRIns *ir, IROp merge)
+{
+  RegSet allow = RSET_GPR;
+  int destused = ra_used(ir);
+  Reg dest = ra_dest(as, ir, allow);
+  Reg tab = ra_alloc1(as, ir->op1, rset_clear(allow, dest));
+  Reg key = RID_NONE, tmp = RID_NONE;
+  IRIns *irkey = IR(ir->op2);
+  int isk = irref_isk(ir->op2);
+  IRType1 kt = irkey->t;
+  uint32_t khash;
+  MCLabel l_end, l_loop, l_next;
+
+  if (!isk) {
+    rset_clear(allow, tab);
+    key = ra_alloc1(as, ir->op2, irt_isnum(kt) ? RSET_FPR : allow);
+    if (LJ_GC64 || !irt_isstr(kt))
+      tmp = ra_scratch(as, rset_exclude(allow, key));
+  }
+
+  /* Key not found in chain: jump to exit (if merged) or load niltv. */
+  l_end = emit_label(as);
+  if (merge == IR_NE)
+    asm_guardcc(as, CC_E);  /* XI_JMP is not found by lj_asm_patchexit. */
+  else if (destused)
+    emit_loada(as, dest, niltvg(J2G(as->J)));
+
+  /* Follow hash chain until the end. */
+  l_loop = emit_sjcc_label(as, CC_NZ);
+  emit_rr(as, XO_TEST, dest|REX_GC64, dest);
+  emit_rmro(as, XO_MOV, dest|REX_GC64, dest, offsetof(Node, next));
+  l_next = emit_label(as);
+
+  /* Type and value comparison. */
+  if (merge == IR_EQ)
+    asm_guardcc(as, CC_E);
+  else
+    emit_sjcc(as, CC_E, l_end);
+  if (irt_isnum(kt)) {
+    if (isk) {
+      /* Assumes -0.0 is already canonicalized to +0.0. */
+      emit_gmroi(as, XG_ARITHi(XOg_CMP), dest, offsetof(Node, key.u32.lo),
+		 (int32_t)ir_knum(irkey)->u32.lo);
+      emit_sjcc(as, CC_NE, l_next);
+      emit_gmroi(as, XG_ARITHi(XOg_CMP), dest, offsetof(Node, key.u32.hi),
+		 (int32_t)ir_knum(irkey)->u32.hi);
+    } else {
+      emit_sjcc(as, CC_P, l_next);
+      emit_rmro(as, XO_UCOMISD, key, dest, offsetof(Node, key.n));
+      emit_sjcc(as, CC_AE, l_next);
+      /* The type check avoids NaN penalties and complaints from Valgrind. */
+#if LJ_64 && !LJ_GC64
+      emit_u32(as, LJ_TISNUM);
+      emit_rmro(as, XO_ARITHi, XOg_CMP, dest, offsetof(Node, key.it));
+#else
+      emit_i8(as, LJ_TISNUM);
+      emit_rmro(as, XO_ARITHi8, XOg_CMP, dest, offsetof(Node, key.it));
+#endif
+    }
+#if LJ_64 && !LJ_GC64
+  } else if (irt_islightud(kt)) {
+    emit_rmro(as, XO_CMP, key|REX_64, dest, offsetof(Node, key.u64));
+#endif
+#if LJ_GC64
+  } else if (irt_isaddr(kt)) {
+    if (isk) {
+      TValue k;
+      k.u64 = ((uint64_t)irt_toitype(irkey->t) << 47) | irkey[1].tv.u64;
+      emit_gmroi(as, XG_ARITHi(XOg_CMP), dest, offsetof(Node, key.u32.lo),
+		 k.u32.lo);
+      emit_sjcc(as, CC_NE, l_next);
+      emit_gmroi(as, XG_ARITHi(XOg_CMP), dest, offsetof(Node, key.u32.hi),
+		 k.u32.hi);
+    } else {
+      emit_rmro(as, XO_CMP, tmp|REX_64, dest, offsetof(Node, key.u64));
+    }
+  } else {
+    lj_assertA(irt_ispri(kt) && !irt_isnil(kt), "bad HREF key type");
+    emit_u32(as, (irt_toitype(kt)<<15)|0x7fff);
+    emit_rmro(as, XO_ARITHi, XOg_CMP, dest, offsetof(Node, key.it));
+#else
+  } else {
+    if (!irt_ispri(kt)) {
+      lj_assertA(irt_isaddr(kt), "bad HREF key type");
+      if (isk)
+	emit_gmroi(as, XG_ARITHi(XOg_CMP), dest, offsetof(Node, key.gcr),
+		   ptr2addr(ir_kgc(irkey)));
+      else
+	emit_rmro(as, XO_CMP, key, dest, offsetof(Node, key.gcr));
+      emit_sjcc(as, CC_NE, l_next);
+    }
+    lj_assertA(!irt_isnil(kt), "bad HREF key type");
+    emit_i8(as, irt_toitype(kt));
+    emit_rmro(as, XO_ARITHi8, XOg_CMP, dest, offsetof(Node, key.it));
+#endif
+  }
+  emit_sfixup(as, l_loop);
+  checkmclim(as);
+#if LJ_GC64
+  if (!isk && irt_isaddr(kt)) {
+    emit_rr(as, XO_OR, tmp|REX_64, key);
+    emit_loadu64(as, tmp, (uint64_t)irt_toitype(kt) << 47);
+  }
+#endif
+
+  /* Load main position relative to tab->node into dest. */
+  khash = isk ? ir_khash(as, irkey) : 1;
+  if (khash == 0) {
+    emit_rmro(as, XO_MOV, dest|REX_GC64, tab, offsetof(GCtab, node));
+  } else {
+    emit_rmro(as, XO_ARITH(XOg_ADD), dest|REX_GC64, tab, offsetof(GCtab,node));
+    emit_shifti(as, XOg_SHL, dest, 3);
+    emit_rmrxo(as, XO_LEA, dest, dest, dest, XM_SCALE2, 0);
+    if (isk) {
+      emit_gri(as, XG_ARITHi(XOg_AND), dest, (int32_t)khash);
+      emit_rmro(as, XO_MOV, dest, tab, offsetof(GCtab, hmask));
+    } else if (irt_isstr(kt)) {
+      emit_rmro(as, XO_ARITH(XOg_AND), dest, key, offsetof(GCstr, sid));
+      emit_rmro(as, XO_MOV, dest, tab, offsetof(GCtab, hmask));
+    } else {  /* Must match with hashrot() in lj_tab.c. */
+      emit_rmro(as, XO_ARITH(XOg_AND), dest, tab, offsetof(GCtab, hmask));
+      emit_rr(as, XO_ARITH(XOg_SUB), dest, tmp);
+      emit_shifti(as, XOg_ROL, tmp, HASH_ROT3);
+      emit_rr(as, XO_ARITH(XOg_XOR), dest, tmp);
+      emit_shifti(as, XOg_ROL, dest, HASH_ROT2);
+      emit_rr(as, XO_ARITH(XOg_SUB), tmp, dest);
+      emit_shifti(as, XOg_ROL, dest, HASH_ROT1);
+      emit_rr(as, XO_ARITH(XOg_XOR), tmp, dest);
+      if (irt_isnum(kt)) {
+	emit_rr(as, XO_ARITH(XOg_ADD), dest, dest);
+#if LJ_64
+	emit_shifti(as, XOg_SHR|REX_64, dest, 32);
+	emit_rr(as, XO_MOV, tmp, dest);
+	emit_rr(as, XO_MOVDto, key|REX_64, dest);
+#else
+	emit_rmro(as, XO_MOV, dest, RID_ESP, ra_spill(as, irkey)+4);
+	emit_rr(as, XO_MOVDto, key, tmp);
+#endif
+      } else {
+	emit_rr(as, XO_MOV, tmp, key);
+#if LJ_GC64
+	checkmclim(as);
+	emit_gri(as, XG_ARITHi(XOg_XOR), dest, irt_toitype(kt) << 15);
+	if ((as->flags & JIT_F_BMI2)) {
+	  emit_i8(as, 32);
+	  emit_mrm(as, XV_RORX|VEX_64, dest, key);
+	} else {
+	  emit_shifti(as, XOg_SHR|REX_64, dest, 32);
+	  emit_rr(as, XO_MOV, dest|REX_64, key|REX_64);
+	}
+#else
+	emit_rmro(as, XO_LEA, dest, key, HASH_BIAS);
+#endif
+      }
+    }
+  }
+}
+
+static void asm_hrefk(ASMState *as, IRIns *ir)
+{
+  IRIns *kslot = IR(ir->op2);
+  IRIns *irkey = IR(kslot->op1);
+  int32_t ofs = (int32_t)(kslot->op2 * sizeof(Node));
+  Reg dest = ra_used(ir) ? ra_dest(as, ir, RSET_GPR) : RID_NONE;
+  Reg node = ra_alloc1(as, ir->op1, RSET_GPR);
+#if !LJ_64
+  MCLabel l_exit;
+#endif
+  lj_assertA(ofs % sizeof(Node) == 0, "unaligned HREFK slot");
+  if (ra_hasreg(dest)) {
+    if (ofs != 0) {
+      if (dest == node)
+	emit_gri(as, XG_ARITHi(XOg_ADD), dest|REX_GC64, ofs);
+      else
+	emit_rmro(as, XO_LEA, dest|REX_GC64, node, ofs);
+    } else if (dest != node) {
+      emit_rr(as, XO_MOV, dest|REX_GC64, node);
+    }
+  }
+  asm_guardcc(as, CC_NE);
+#if LJ_64
+  if (!irt_ispri(irkey->t)) {
+    Reg key = ra_scratch(as, rset_exclude(RSET_GPR, node));
+    emit_rmro(as, XO_CMP, key|REX_64, node,
+	       ofs + (int32_t)offsetof(Node, key.u64));
+    lj_assertA(irt_isnum(irkey->t) || irt_isgcv(irkey->t),
+	       "bad HREFK key type");
+    /* Assumes -0.0 is already canonicalized to +0.0. */
+    emit_loadu64(as, key, irt_isnum(irkey->t) ? ir_knum(irkey)->u64 :
+#if LJ_GC64
+			  ((uint64_t)irt_toitype(irkey->t) << 47) |
+			  (uint64_t)ir_kgc(irkey));
+#else
+			  ((uint64_t)irt_toitype(irkey->t) << 32) |
+			  (uint64_t)(uint32_t)ptr2addr(ir_kgc(irkey)));
+#endif
+  } else {
+    lj_assertA(!irt_isnil(irkey->t), "bad HREFK key type");
+#if LJ_GC64
+    emit_i32(as, (irt_toitype(irkey->t)<<15)|0x7fff);
+    emit_rmro(as, XO_ARITHi, XOg_CMP, node,
+	      ofs + (int32_t)offsetof(Node, key.it));
+#else
+    emit_i8(as, irt_toitype(irkey->t));
+    emit_rmro(as, XO_ARITHi8, XOg_CMP, node,
+	      ofs + (int32_t)offsetof(Node, key.it));
+#endif
+  }
+#else
+  l_exit = emit_label(as);
+  if (irt_isnum(irkey->t)) {
+    /* Assumes -0.0 is already canonicalized to +0.0. */
+    emit_gmroi(as, XG_ARITHi(XOg_CMP), node,
+	       ofs + (int32_t)offsetof(Node, key.u32.lo),
+	       (int32_t)ir_knum(irkey)->u32.lo);
+    emit_sjcc(as, CC_NE, l_exit);
+    emit_gmroi(as, XG_ARITHi(XOg_CMP), node,
+	       ofs + (int32_t)offsetof(Node, key.u32.hi),
+	       (int32_t)ir_knum(irkey)->u32.hi);
+  } else {
+    if (!irt_ispri(irkey->t)) {
+      lj_assertA(irt_isgcv(irkey->t), "bad HREFK key type");
+      emit_gmroi(as, XG_ARITHi(XOg_CMP), node,
+		 ofs + (int32_t)offsetof(Node, key.gcr),
+		 ptr2addr(ir_kgc(irkey)));
+      emit_sjcc(as, CC_NE, l_exit);
+    }
+    lj_assertA(!irt_isnil(irkey->t), "bad HREFK key type");
+    emit_i8(as, irt_toitype(irkey->t));
+    emit_rmro(as, XO_ARITHi8, XOg_CMP, node,
+	      ofs + (int32_t)offsetof(Node, key.it));
+  }
+#endif
+}
+
+static void asm_uref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  if (irref_isk(ir->op1)) {
+    GCfunc *fn = ir_kfunc(IR(ir->op1));
+    MRef *v = &gcref(fn->l.uvptr[(ir->op2 >> 8)])->uv.v;
+    emit_rma(as, XO_MOV, dest|REX_GC64, v);
+  } else {
+    Reg uv = ra_scratch(as, RSET_GPR);
+    Reg func = ra_alloc1(as, ir->op1, RSET_GPR);
+    if (ir->o == IR_UREFC) {
+      emit_rmro(as, XO_LEA, dest|REX_GC64, uv, offsetof(GCupval, tv));
+      asm_guardcc(as, CC_NE);
+      emit_i8(as, 1);
+      emit_rmro(as, XO_ARITHib, XOg_CMP, uv, offsetof(GCupval, closed));
+    } else {
+      emit_rmro(as, XO_MOV, dest|REX_GC64, uv, offsetof(GCupval, v));
+    }
+    emit_rmro(as, XO_MOV, uv|REX_GC64, func,
+	      (int32_t)offsetof(GCfuncL, uvptr) +
+	      (int32_t)sizeof(MRef) * (int32_t)(ir->op2 >> 8));
+  }
+}
+
+static void asm_fref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  asm_fusefref(as, ir, RSET_GPR);
+  emit_mrm(as, XO_LEA, dest, RID_MRM);
+}
+
+static void asm_strref(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  asm_fusestrref(as, ir, RSET_GPR);
+  if (as->mrm.base == RID_NONE)
+    emit_loadi(as, dest, as->mrm.ofs);
+  else if (as->mrm.base == dest && as->mrm.idx == RID_NONE)
+    emit_gri(as, XG_ARITHi(XOg_ADD), dest|REX_GC64, as->mrm.ofs);
+  else
+    emit_mrm(as, XO_LEA, dest|REX_GC64, RID_MRM);
+}
+
+/* -- Loads and stores ---------------------------------------------------- */
+
+static void asm_fxload(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, irt_isfp(ir->t) ? RSET_FPR : RSET_GPR);
+  x86Op xo;
+  if (ir->o == IR_FLOAD)
+    asm_fusefref(as, ir, RSET_GPR);
+  else
+    asm_fusexref(as, ir->op1, RSET_GPR);
+  /* ir->op2 is ignored -- unaligned loads are ok on x86. */
+  switch (irt_type(ir->t)) {
+  case IRT_I8: xo = XO_MOVSXb; break;
+  case IRT_U8: xo = XO_MOVZXb; break;
+  case IRT_I16: xo = XO_MOVSXw; break;
+  case IRT_U16: xo = XO_MOVZXw; break;
+  case IRT_NUM: xo = XO_MOVSD; break;
+  case IRT_FLOAT: xo = XO_MOVSS; break;
+  default:
+    if (LJ_64 && irt_is64(ir->t))
+      dest |= REX_64;
+    else
+      lj_assertA(irt_isint(ir->t) || irt_isu32(ir->t) || irt_isaddr(ir->t),
+		 "unsplit 64 bit load");
+    xo = XO_MOV;
+    break;
+  }
+  emit_mrm(as, xo, dest, RID_MRM);
+}
+
+#define asm_fload(as, ir)	asm_fxload(as, ir)
+#define asm_xload(as, ir)	asm_fxload(as, ir)
+
+static void asm_fxstore(ASMState *as, IRIns *ir)
+{
+  RegSet allow = RSET_GPR;
+  Reg src = RID_NONE, osrc = RID_NONE;
+  int32_t k = 0;
+  if (ir->r == RID_SINK)
+    return;
+  /* The IRT_I16/IRT_U16 stores should never be simplified for constant
+  ** values since mov word [mem], imm16 has a length-changing prefix.
+  */
+  if (irt_isi16(ir->t) || irt_isu16(ir->t) || irt_isfp(ir->t) ||
+      !asm_isk32(as, ir->op2, &k)) {
+    RegSet allow8 = irt_isfp(ir->t) ? RSET_FPR :
+		    (irt_isi8(ir->t) || irt_isu8(ir->t)) ? RSET_GPR8 : RSET_GPR;
+    src = osrc = ra_alloc1(as, ir->op2, allow8);
+    if (!LJ_64 && !rset_test(allow8, src)) {  /* Already in wrong register. */
+      rset_clear(allow, osrc);
+      src = ra_scratch(as, allow8);
+    }
+    rset_clear(allow, src);
+  }
+  if (ir->o == IR_FSTORE) {
+    asm_fusefref(as, IR(ir->op1), allow);
+  } else {
+    asm_fusexref(as, ir->op1, allow);
+    if (LJ_32 && ir->o == IR_HIOP) as->mrm.ofs += 4;
+  }
+  if (ra_hasreg(src)) {
+    x86Op xo;
+    switch (irt_type(ir->t)) {
+    case IRT_I8: case IRT_U8: xo = XO_MOVtob; src |= FORCE_REX; break;
+    case IRT_I16: case IRT_U16: xo = XO_MOVtow; break;
+    case IRT_NUM: xo = XO_MOVSDto; break;
+    case IRT_FLOAT: xo = XO_MOVSSto; break;
+#if LJ_64 && !LJ_GC64
+    case IRT_LIGHTUD:
+      /* NYI: mask 64 bit lightuserdata. */
+      lj_assertA(0, "store of lightuserdata");
+#endif
+    default:
+      if (LJ_64 && irt_is64(ir->t))
+	src |= REX_64;
+      else
+	lj_assertA(irt_isint(ir->t) || irt_isu32(ir->t) || irt_isaddr(ir->t),
+		   "unsplit 64 bit store");
+      xo = XO_MOVto;
+      break;
+    }
+    emit_mrm(as, xo, src, RID_MRM);
+    if (!LJ_64 && src != osrc) {
+      ra_noweak(as, osrc);
+      emit_rr(as, XO_MOV, src, osrc);
+    }
+  } else {
+    if (irt_isi8(ir->t) || irt_isu8(ir->t)) {
+      emit_i8(as, k);
+      emit_mrm(as, XO_MOVmib, 0, RID_MRM);
+    } else {
+      lj_assertA(irt_is64(ir->t) || irt_isint(ir->t) || irt_isu32(ir->t) ||
+		 irt_isaddr(ir->t), "bad store type");
+      emit_i32(as, k);
+      emit_mrm(as, XO_MOVmi, REX_64IR(ir, 0), RID_MRM);
+    }
+  }
+}
+
+#define asm_fstore(as, ir)	asm_fxstore(as, ir)
+#define asm_xstore(as, ir)	asm_fxstore(as, ir)
+
+#if LJ_64 && !LJ_GC64
+static Reg asm_load_lightud64(ASMState *as, IRIns *ir, int typecheck)
+{
+  if (ra_used(ir) || typecheck) {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    if (typecheck) {
+      Reg tmp = ra_scratch(as, rset_exclude(RSET_GPR, dest));
+      asm_guardcc(as, CC_NE);
+      emit_i8(as, -2);
+      emit_rr(as, XO_ARITHi8, XOg_CMP, tmp);
+      emit_shifti(as, XOg_SAR|REX_64, tmp, 47);
+      emit_rr(as, XO_MOV, tmp|REX_64, dest);
+    }
+    return dest;
+  } else {
+    return RID_NONE;
+  }
+}
+#endif
+
+static void asm_ahuvload(ASMState *as, IRIns *ir)
+{
+#if LJ_GC64
+  Reg tmp = RID_NONE;
+#endif
+  lj_assertA(irt_isnum(ir->t) || irt_ispri(ir->t) || irt_isaddr(ir->t) ||
+	     (LJ_DUALNUM && irt_isint(ir->t)),
+	     "bad load type %d", irt_type(ir->t));
+#if LJ_64 && !LJ_GC64
+  if (irt_islightud(ir->t)) {
+    Reg dest = asm_load_lightud64(as, ir, 1);
+    if (ra_hasreg(dest)) {
+      asm_fuseahuref(as, ir->op1, RSET_GPR);
+      if (ir->o == IR_VLOAD) as->mrm.ofs += 8 * ir->op2;
+      emit_mrm(as, XO_MOV, dest|REX_64, RID_MRM);
+    }
+    return;
+  } else
+#endif
+  if (ra_used(ir)) {
+    RegSet allow = irt_isnum(ir->t) ? RSET_FPR : RSET_GPR;
+    Reg dest = ra_dest(as, ir, allow);
+    asm_fuseahuref(as, ir->op1, RSET_GPR);
+    if (ir->o == IR_VLOAD) as->mrm.ofs += 8 * ir->op2;
+#if LJ_GC64
+    if (irt_isaddr(ir->t)) {
+      emit_shifti(as, XOg_SHR|REX_64, dest, 17);
+      asm_guardcc(as, CC_NE);
+      emit_i8(as, irt_toitype(ir->t));
+      emit_rr(as, XO_ARITHi8, XOg_CMP, dest);
+      emit_i8(as, XI_O16);
+      if ((as->flags & JIT_F_BMI2)) {
+	emit_i8(as, 47);
+	emit_mrm(as, XV_RORX|VEX_64, dest, RID_MRM);
+      } else {
+	emit_shifti(as, XOg_ROR|REX_64, dest, 47);
+	emit_mrm(as, XO_MOV, dest|REX_64, RID_MRM);
+      }
+      return;
+    } else
+#endif
+    emit_mrm(as, dest < RID_MAX_GPR ? XO_MOV : XO_MOVSD, dest, RID_MRM);
+  } else {
+    RegSet gpr = RSET_GPR;
+#if LJ_GC64
+    if (irt_isaddr(ir->t)) {
+      tmp = ra_scratch(as, RSET_GPR);
+      gpr = rset_exclude(gpr, tmp);
+    }
+#endif
+    asm_fuseahuref(as, ir->op1, gpr);
+    if (ir->o == IR_VLOAD) as->mrm.ofs += 8 * ir->op2;
+  }
+  /* Always do the type check, even if the load result is unused. */
+  as->mrm.ofs += 4;
+  asm_guardcc(as, irt_isnum(ir->t) ? CC_AE : CC_NE);
+  if (LJ_64 && irt_type(ir->t) >= IRT_NUM) {
+    lj_assertA(irt_isinteger(ir->t) || irt_isnum(ir->t),
+	       "bad load type %d", irt_type(ir->t));
+#if LJ_GC64
+    emit_u32(as, LJ_TISNUM << 15);
+#else
+    emit_u32(as, LJ_TISNUM);
+#endif
+    emit_mrm(as, XO_ARITHi, XOg_CMP, RID_MRM);
+#if LJ_GC64
+  } else if (irt_isaddr(ir->t)) {
+    as->mrm.ofs -= 4;
+    emit_i8(as, irt_toitype(ir->t));
+    emit_mrm(as, XO_ARITHi8, XOg_CMP, tmp);
+    emit_shifti(as, XOg_SAR|REX_64, tmp, 47);
+    emit_mrm(as, XO_MOV, tmp|REX_64, RID_MRM);
+  } else if (irt_isnil(ir->t)) {
+    as->mrm.ofs -= 4;
+    emit_i8(as, -1);
+    emit_mrm(as, XO_ARITHi8, XOg_CMP|REX_64, RID_MRM);
+  } else {
+    emit_u32(as, (irt_toitype(ir->t) << 15) | 0x7fff);
+    emit_mrm(as, XO_ARITHi, XOg_CMP, RID_MRM);
+#else
+  } else {
+    emit_i8(as, irt_toitype(ir->t));
+    emit_mrm(as, XO_ARITHi8, XOg_CMP, RID_MRM);
+#endif
+  }
+}
+
+static void asm_ahustore(ASMState *as, IRIns *ir)
+{
+  if (ir->r == RID_SINK)
+    return;
+  if (irt_isnum(ir->t)) {
+    Reg src = ra_alloc1(as, ir->op2, RSET_FPR);
+    asm_fuseahuref(as, ir->op1, RSET_GPR);
+    emit_mrm(as, XO_MOVSDto, src, RID_MRM);
+#if LJ_64 && !LJ_GC64
+  } else if (irt_islightud(ir->t)) {
+    Reg src = ra_alloc1(as, ir->op2, RSET_GPR);
+    asm_fuseahuref(as, ir->op1, rset_exclude(RSET_GPR, src));
+    emit_mrm(as, XO_MOVto, src|REX_64, RID_MRM);
+#endif
+#if LJ_GC64
+  } else if (irref_isk(ir->op2)) {
+    TValue k;
+    lj_ir_kvalue(as->J->L, &k, IR(ir->op2));
+    asm_fuseahuref(as, ir->op1, RSET_GPR);
+    if (tvisnil(&k)) {
+      emit_i32(as, -1);
+      emit_mrm(as, XO_MOVmi, REX_64, RID_MRM);
+    } else {
+      emit_u32(as, k.u32.lo);
+      emit_mrm(as, XO_MOVmi, 0, RID_MRM);
+      as->mrm.ofs += 4;
+      emit_u32(as, k.u32.hi);
+      emit_mrm(as, XO_MOVmi, 0, RID_MRM);
+    }
+#endif
+  } else {
+    IRIns *irr = IR(ir->op2);
+    RegSet allow = RSET_GPR;
+    Reg src = RID_NONE;
+    if (!irref_isk(ir->op2)) {
+      src = ra_alloc1(as, ir->op2, allow);
+      rset_clear(allow, src);
+    }
+    asm_fuseahuref(as, ir->op1, allow);
+    if (ra_hasreg(src)) {
+#if LJ_GC64
+      if (!(LJ_DUALNUM && irt_isinteger(ir->t))) {
+	/* TODO: 64 bit store + 32 bit load-modify-store is suboptimal. */
+	as->mrm.ofs += 4;
+	emit_u32(as, irt_toitype(ir->t) << 15);
+	emit_mrm(as, XO_ARITHi, XOg_OR, RID_MRM);
+	as->mrm.ofs -= 4;
+	emit_mrm(as, XO_MOVto, src|REX_64, RID_MRM);
+	return;
+      }
+#endif
+      emit_mrm(as, XO_MOVto, src, RID_MRM);
+    } else if (!irt_ispri(irr->t)) {
+      lj_assertA(irt_isaddr(ir->t) || (LJ_DUALNUM && irt_isinteger(ir->t)),
+		 "bad store type");
+      emit_i32(as, irr->i);
+      emit_mrm(as, XO_MOVmi, 0, RID_MRM);
+    }
+    as->mrm.ofs += 4;
+#if LJ_GC64
+    lj_assertA(LJ_DUALNUM && irt_isinteger(ir->t), "bad store type");
+    emit_i32(as, LJ_TNUMX << 15);
+#else
+    emit_i32(as, (int32_t)irt_toitype(ir->t));
+#endif
+    emit_mrm(as, XO_MOVmi, 0, RID_MRM);
+  }
+}
+
+static void asm_sload(ASMState *as, IRIns *ir)
+{
+  int32_t ofs = 8*((int32_t)ir->op1-1-LJ_FR2) +
+		(!LJ_FR2 && (ir->op2 & IRSLOAD_FRAME) ? 4 : 0);
+  IRType1 t = ir->t;
+  Reg base;
+  lj_assertA(!(ir->op2 & IRSLOAD_PARENT),
+	     "bad parent SLOAD"); /* Handled by asm_head_side(). */
+  lj_assertA(irt_isguard(t) || !(ir->op2 & IRSLOAD_TYPECHECK),
+	     "inconsistent SLOAD variant");
+  lj_assertA(LJ_DUALNUM ||
+	     !irt_isint(t) ||
+	     (ir->op2 & (IRSLOAD_CONVERT|IRSLOAD_FRAME|IRSLOAD_KEYINDEX)),
+	     "bad SLOAD type");
+  if ((ir->op2 & IRSLOAD_CONVERT) && irt_isguard(t) && irt_isint(t)) {
+    Reg left = ra_scratch(as, RSET_FPR);
+    asm_tointg(as, ir, left);  /* Frees dest reg. Do this before base alloc. */
+    base = ra_alloc1(as, REF_BASE, RSET_GPR);
+    emit_rmro(as, XO_MOVSD, left, base, ofs);
+    t.irt = IRT_NUM;  /* Continue with a regular number type check. */
+#if LJ_64 && !LJ_GC64
+  } else if (irt_islightud(t)) {
+    Reg dest = asm_load_lightud64(as, ir, (ir->op2 & IRSLOAD_TYPECHECK));
+    if (ra_hasreg(dest)) {
+      base = ra_alloc1(as, REF_BASE, RSET_GPR);
+      emit_rmro(as, XO_MOV, dest|REX_64, base, ofs);
+    }
+    return;
+#endif
+  } else if (ra_used(ir)) {
+    RegSet allow = irt_isnum(t) ? RSET_FPR : RSET_GPR;
+    Reg dest = ra_dest(as, ir, allow);
+    base = ra_alloc1(as, REF_BASE, RSET_GPR);
+    lj_assertA(irt_isnum(t) || irt_isint(t) || irt_isaddr(t),
+	       "bad SLOAD type %d", irt_type(t));
+    if ((ir->op2 & IRSLOAD_CONVERT)) {
+      t.irt = irt_isint(t) ? IRT_NUM : IRT_INT;  /* Check for original type. */
+      emit_rmro(as, irt_isint(t) ? XO_CVTSI2SD : XO_CVTTSD2SI, dest, base, ofs);
+    } else {
+#if LJ_GC64
+      if (irt_isaddr(t)) {
+	/* LJ_GC64 type check + tag removal without BMI2 and with BMI2:
+	**
+	**  mov r64, [addr]    rorx r64, [addr], 47
+	**  ror r64, 47
+	**  cmp r16, itype     cmp r16, itype
+	**  jne ->exit         jne ->exit
+	**  shr r64, 16        shr r64, 16
+	*/
+	emit_shifti(as, XOg_SHR|REX_64, dest, 17);
+	if ((ir->op2 & IRSLOAD_TYPECHECK)) {
+	  asm_guardcc(as, CC_NE);
+	  emit_i8(as, irt_toitype(t));
+	  emit_rr(as, XO_ARITHi8, XOg_CMP, dest);
+	  emit_i8(as, XI_O16);
+	}
+	if ((as->flags & JIT_F_BMI2)) {
+	  emit_i8(as, 47);
+	  emit_rmro(as, XV_RORX|VEX_64, dest, base, ofs);
+	} else {
+	  if ((ir->op2 & IRSLOAD_TYPECHECK))
+	    emit_shifti(as, XOg_ROR|REX_64, dest, 47);
+	  else
+	    emit_shifti(as, XOg_SHL|REX_64, dest, 17);
+	  emit_rmro(as, XO_MOV, dest|REX_64, base, ofs);
+	}
+	return;
+      } else
+#endif
+      emit_rmro(as, irt_isnum(t) ? XO_MOVSD : XO_MOV, dest, base, ofs);
+    }
+  } else {
+    if (!(ir->op2 & IRSLOAD_TYPECHECK))
+      return;  /* No type check: avoid base alloc. */
+    base = ra_alloc1(as, REF_BASE, RSET_GPR);
+  }
+  if ((ir->op2 & IRSLOAD_TYPECHECK)) {
+    /* Need type check, even if the load result is unused. */
+    asm_guardcc(as, irt_isnum(t) ? CC_AE : CC_NE);
+    if ((LJ_64 && irt_type(t) >= IRT_NUM) || (ir->op2 & IRSLOAD_KEYINDEX)) {
+      lj_assertA(irt_isinteger(t) || irt_isnum(t),
+		 "bad SLOAD type %d", irt_type(t));
+      emit_u32(as, (ir->op2 & IRSLOAD_KEYINDEX) ? LJ_KEYINDEX :
+		   LJ_GC64 ? (LJ_TISNUM << 15) : LJ_TISNUM);
+      emit_rmro(as, XO_ARITHi, XOg_CMP, base, ofs+4);
+#if LJ_GC64
+    } else if (irt_isnil(t)) {
+      /* LJ_GC64 type check for nil:
+      **
+      **   cmp qword [addr], -1
+      **   jne ->exit
+      */
+      emit_i8(as, -1);
+      emit_rmro(as, XO_ARITHi8, XOg_CMP|REX_64, base, ofs);
+    } else if (irt_ispri(t)) {
+      emit_u32(as, (irt_toitype(t) << 15) | 0x7fff);
+      emit_rmro(as, XO_ARITHi, XOg_CMP, base, ofs+4);
+    } else {
+      /* LJ_GC64 type check only:
+      **
+      **   mov r64, [addr]
+      **   sar r64, 47
+      **   cmp r32, itype
+      **   jne ->exit
+      */
+      Reg tmp = ra_scratch(as, rset_exclude(RSET_GPR, base));
+      emit_i8(as, irt_toitype(t));
+      emit_rr(as, XO_ARITHi8, XOg_CMP, tmp);
+      emit_shifti(as, XOg_SAR|REX_64, tmp, 47);
+      emit_rmro(as, XO_MOV, tmp|REX_64, base, ofs);
+#else
+    } else {
+      emit_i8(as, irt_toitype(t));
+      emit_rmro(as, XO_ARITHi8, XOg_CMP, base, ofs+4);
+#endif
+    }
+  }
+}
+
+/* -- Allocations --------------------------------------------------------- */
+
+#if LJ_HASFFI
+static void asm_cnew(ASMState *as, IRIns *ir)
+{
+  CTState *cts = ctype_ctsG(J2G(as->J));
+  CTypeID id = (CTypeID)IR(ir->op1)->i;
+  CTSize sz;
+  CTInfo info = lj_ctype_info(cts, id, &sz);
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_mem_newgco];
+  IRRef args[4];
+  lj_assertA(sz != CTSIZE_INVALID || (ir->o == IR_CNEW && ir->op2 != REF_NIL),
+	     "bad CNEW/CNEWI operands");
+
+  as->gcsteps++;
+  asm_setupresult(as, ir, ci);  /* GCcdata * */
+
+  /* Initialize immutable cdata object. */
+  if (ir->o == IR_CNEWI) {
+    RegSet allow = (RSET_GPR & ~RSET_SCRATCH);
+#if LJ_64
+    Reg r64 = sz == 8 ? REX_64 : 0;
+    if (irref_isk(ir->op2)) {
+      IRIns *irk = IR(ir->op2);
+      uint64_t k = (irk->o == IR_KINT64 ||
+		    (LJ_GC64 && (irk->o == IR_KPTR || irk->o == IR_KKPTR))) ?
+		   ir_k64(irk)->u64 : (uint64_t)(uint32_t)irk->i;
+      if (sz == 4 || checki32((int64_t)k)) {
+	emit_i32(as, (int32_t)k);
+	emit_rmro(as, XO_MOVmi, r64, RID_RET, sizeof(GCcdata));
+      } else {
+	emit_movtomro(as, RID_ECX + r64, RID_RET, sizeof(GCcdata));
+	emit_loadu64(as, RID_ECX, k);
+      }
+    } else {
+      Reg r = ra_alloc1(as, ir->op2, allow);
+      emit_movtomro(as, r + r64, RID_RET, sizeof(GCcdata));
+    }
+#else
+    int32_t ofs = sizeof(GCcdata);
+    if (sz == 8) {
+      ofs += 4; ir++;
+      lj_assertA(ir->o == IR_HIOP, "missing CNEWI HIOP");
+    }
+    do {
+      if (irref_isk(ir->op2)) {
+	emit_movmroi(as, RID_RET, ofs, IR(ir->op2)->i);
+      } else {
+	Reg r = ra_alloc1(as, ir->op2, allow);
+	emit_movtomro(as, r, RID_RET, ofs);
+	rset_clear(allow, r);
+      }
+      if (ofs == sizeof(GCcdata)) break;
+      ofs -= 4; ir--;
+    } while (1);
+#endif
+    lj_assertA(sz == 4 || sz == 8, "bad CNEWI size %d", sz);
+  } else if (ir->op2 != REF_NIL) {  /* Create VLA/VLS/aligned cdata. */
+    ci = &lj_ir_callinfo[IRCALL_lj_cdata_newv];
+    args[0] = ASMREF_L;     /* lua_State *L */
+    args[1] = ir->op1;      /* CTypeID id   */
+    args[2] = ir->op2;      /* CTSize sz    */
+    args[3] = ASMREF_TMP1;  /* CTSize align */
+    asm_gencall(as, ci, args);
+    emit_loadi(as, ra_releasetmp(as, ASMREF_TMP1), (int32_t)ctype_align(info));
+    return;
+  }
+
+  /* Combine initialization of marked, gct and ctypeid. */
+  emit_movtomro(as, RID_ECX, RID_RET, offsetof(GCcdata, marked));
+  emit_gri(as, XG_ARITHi(XOg_OR), RID_ECX,
+	   (int32_t)((~LJ_TCDATA<<8)+(id<<16)));
+  emit_gri(as, XG_ARITHi(XOg_AND), RID_ECX, LJ_GC_WHITES);
+  emit_opgl(as, XO_MOVZXb, RID_ECX, gc.currentwhite);
+
+  args[0] = ASMREF_L;     /* lua_State *L */
+  args[1] = ASMREF_TMP1;  /* MSize size   */
+  asm_gencall(as, ci, args);
+  emit_loadi(as, ra_releasetmp(as, ASMREF_TMP1), (int32_t)(sz+sizeof(GCcdata)));
+}
+#endif
+
+/* -- Write barriers ------------------------------------------------------ */
+
+static void asm_tbar(ASMState *as, IRIns *ir)
+{
+  Reg tab = ra_alloc1(as, ir->op1, RSET_GPR);
+  Reg tmp = ra_scratch(as, rset_exclude(RSET_GPR, tab));
+  MCLabel l_end = emit_label(as);
+  emit_movtomro(as, tmp|REX_GC64, tab, offsetof(GCtab, gclist));
+  emit_setgl(as, tab, gc.grayagain);
+  emit_getgl(as, tmp, gc.grayagain);
+  emit_i8(as, ~LJ_GC_BLACK);
+  emit_rmro(as, XO_ARITHib, XOg_AND, tab, offsetof(GCtab, marked));
+  emit_sjcc(as, CC_Z, l_end);
+  emit_i8(as, LJ_GC_BLACK);
+  emit_rmro(as, XO_GROUP3b, XOg_TEST, tab, offsetof(GCtab, marked));
+}
+
+static void asm_obar(ASMState *as, IRIns *ir)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_barrieruv];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg obj;
+  /* No need for other object barriers (yet). */
+  lj_assertA(IR(ir->op1)->o == IR_UREFC, "bad OBAR type");
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ir->op1;      /* TValue *tv      */
+  asm_gencall(as, ci, args);
+  emit_loada(as, ra_releasetmp(as, ASMREF_TMP1), J2G(as->J));
+  obj = IR(ir->op1)->r;
+  emit_sjcc(as, CC_Z, l_end);
+  emit_i8(as, LJ_GC_WHITES);
+  if (irref_isk(ir->op2)) {
+    GCobj *vp = ir_kgc(IR(ir->op2));
+    emit_rma(as, XO_GROUP3b, XOg_TEST, &vp->gch.marked);
+  } else {
+    Reg val = ra_alloc1(as, ir->op2, rset_exclude(RSET_SCRATCH&RSET_GPR, obj));
+    emit_rmro(as, XO_GROUP3b, XOg_TEST, val, (int32_t)offsetof(GChead, marked));
+  }
+  emit_sjcc(as, CC_Z, l_end);
+  emit_i8(as, LJ_GC_BLACK);
+  emit_rmro(as, XO_GROUP3b, XOg_TEST, obj,
+	    (int32_t)offsetof(GCupval, marked)-(int32_t)offsetof(GCupval, tv));
+}
+
+/* -- FP/int arithmetic and logic operations ------------------------------ */
+
+/* Load reference onto x87 stack. Force a spill to memory if needed. */
+static void asm_x87load(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (ir->o == IR_KNUM) {
+    cTValue *tv = ir_knum(ir);
+    if (tvispzero(tv))  /* Use fldz only for +0. */
+      emit_x87op(as, XI_FLDZ);
+    else if (tvispone(tv))
+      emit_x87op(as, XI_FLD1);
+    else
+      emit_rma(as, XO_FLDq, XOg_FLDq, tv);
+  } else if (ir->o == IR_CONV && ir->op2 == IRCONV_NUM_INT && !ra_used(ir) &&
+	     !irref_isk(ir->op1) && mayfuse(as, ir->op1)) {
+    IRIns *iri = IR(ir->op1);
+    emit_rmro(as, XO_FILDd, XOg_FILDd, RID_ESP, ra_spill(as, iri));
+  } else {
+    emit_mrm(as, XO_FLDq, XOg_FLDq, asm_fuseload(as, ref, RSET_EMPTY));
+  }
+}
+
+static void asm_fpmath(ASMState *as, IRIns *ir)
+{
+  IRFPMathOp fpm = (IRFPMathOp)ir->op2;
+  if (fpm == IRFPM_SQRT) {
+    Reg dest = ra_dest(as, ir, RSET_FPR);
+    Reg left = asm_fuseload(as, ir->op1, RSET_FPR);
+    emit_mrm(as, XO_SQRTSD, dest, left);
+  } else if (fpm <= IRFPM_TRUNC) {
+    if (as->flags & JIT_F_SSE4_1) {  /* SSE4.1 has a rounding instruction. */
+      Reg dest = ra_dest(as, ir, RSET_FPR);
+      Reg left = asm_fuseload(as, ir->op1, RSET_FPR);
+      /* ROUNDSD has a 4-byte opcode which doesn't fit in x86Op.
+      ** Let's pretend it's a 3-byte opcode, and compensate afterwards.
+      ** This is atrocious, but the alternatives are much worse.
+      */
+      /* Round down/up/trunc == 1001/1010/1011. */
+      emit_i8(as, 0x09 + fpm);
+      emit_mrm(as, XO_ROUNDSD, dest, left);
+      if (LJ_64 && as->mcp[1] != (MCode)(XO_ROUNDSD >> 16)) {
+	as->mcp[0] = as->mcp[1]; as->mcp[1] = 0x0f;  /* Swap 0F and REX. */
+      }
+      *--as->mcp = 0x66;  /* 1st byte of ROUNDSD opcode. */
+    } else {  /* Call helper functions for SSE2 variant. */
+      /* The modified regs must match with the *.dasc implementation. */
+      RegSet drop = RSET_RANGE(RID_XMM0, RID_XMM3+1)|RID2RSET(RID_EAX);
+      if (ra_hasreg(ir->r))
+	rset_clear(drop, ir->r);  /* Dest reg handled below. */
+      ra_evictset(as, drop);
+      ra_destreg(as, ir, RID_XMM0);
+      emit_call(as, fpm == IRFPM_FLOOR ? lj_vm_floor_sse :
+		    fpm == IRFPM_CEIL ? lj_vm_ceil_sse : lj_vm_trunc_sse);
+      ra_left(as, RID_XMM0, ir->op1);
+    }
+  } else {
+    asm_callid(as, ir, IRCALL_lj_vm_floor + fpm);
+  }
+}
+
+static void asm_ldexp(ASMState *as, IRIns *ir)
+{
+  int32_t ofs = sps_scale(ir->s);  /* Use spill slot or temp slots. */
+  Reg dest = ir->r;
+  if (ra_hasreg(dest)) {
+    ra_free(as, dest);
+    ra_modified(as, dest);
+    emit_rmro(as, XO_MOVSD, dest, RID_ESP, ofs);
+  }
+  emit_rmro(as, XO_FSTPq, XOg_FSTPq, RID_ESP, ofs);
+  emit_x87op(as, XI_FPOP1);
+  emit_x87op(as, XI_FSCALE);
+  asm_x87load(as, ir->op1);
+  asm_x87load(as, ir->op2);
+}
+
+static int asm_swapops(ASMState *as, IRIns *ir)
+{
+  IRIns *irl = IR(ir->op1);
+  IRIns *irr = IR(ir->op2);
+  lj_assertA(ra_noreg(irr->r), "bad usage");
+  if (!irm_iscomm(lj_ir_mode[ir->o]))
+    return 0;  /* Can't swap non-commutative operations. */
+  if (irref_isk(ir->op2))
+    return 0;  /* Don't swap constants to the left. */
+  if (ra_hasreg(irl->r))
+    return 1;  /* Swap if left already has a register. */
+  if (ra_samehint(ir->r, irr->r))
+    return 1;  /* Swap if dest and right have matching hints. */
+  if (as->curins > as->loopref) {  /* In variant part? */
+    if (ir->op2 < as->loopref && !irt_isphi(irr->t))
+      return 0;  /* Keep invariants on the right. */
+    if (ir->op1 < as->loopref && !irt_isphi(irl->t))
+      return 1;  /* Swap invariants to the right. */
+  }
+  if (opisfusableload(irl->o))
+    return 1;  /* Swap fusable loads to the right. */
+  return 0;  /* Otherwise don't swap. */
+}
+
+static void asm_fparith(ASMState *as, IRIns *ir, x86Op xo)
+{
+  IRRef lref = ir->op1;
+  IRRef rref = ir->op2;
+  RegSet allow = RSET_FPR;
+  Reg dest;
+  Reg right = IR(rref)->r;
+  if (ra_hasreg(right)) {
+    rset_clear(allow, right);
+    ra_noweak(as, right);
+  }
+  dest = ra_dest(as, ir, allow);
+  if (lref == rref) {
+    right = dest;
+  } else if (ra_noreg(right)) {
+    if (asm_swapops(as, ir)) {
+      IRRef tmp = lref; lref = rref; rref = tmp;
+    }
+    right = asm_fuseload(as, rref, rset_clear(allow, dest));
+  }
+  emit_mrm(as, xo, dest, right);
+  ra_left(as, dest, lref);
+}
+
+static void asm_intarith(ASMState *as, IRIns *ir, x86Arith xa)
+{
+  IRRef lref = ir->op1;
+  IRRef rref = ir->op2;
+  RegSet allow = RSET_GPR;
+  Reg dest, right;
+  int32_t k = 0;
+  if (as->flagmcp == as->mcp) {  /* Drop test r,r instruction. */
+    MCode *p = as->mcp + ((LJ_64 && *as->mcp < XI_TESTb) ? 3 : 2);
+    MCode *q = p[0] == 0x0f ? p+1 : p;
+    if ((*q & 15) < 14) {
+      if ((*q & 15) >= 12) *q -= 4;  /* L <->S, NL <-> NS */
+      as->flagmcp = NULL;
+      as->mcp = p;
+    }  /* else: cannot transform LE/NLE to cc without use of OF. */
+  }
+  right = IR(rref)->r;
+  if (ra_hasreg(right)) {
+    rset_clear(allow, right);
+    ra_noweak(as, right);
+  }
+  dest = ra_dest(as, ir, allow);
+  if (lref == rref) {
+    right = dest;
+  } else if (ra_noreg(right) && !asm_isk32(as, rref, &k)) {
+    if (asm_swapops(as, ir)) {
+      IRRef tmp = lref; lref = rref; rref = tmp;
+    }
+    right = asm_fuseloadm(as, rref, rset_clear(allow, dest), irt_is64(ir->t));
+  }
+  if (irt_isguard(ir->t))  /* For IR_ADDOV etc. */
+    asm_guardcc(as, CC_O);
+  if (xa != XOg_X_IMUL) {
+    if (ra_hasreg(right))
+      emit_mrm(as, XO_ARITH(xa), REX_64IR(ir, dest), right);
+    else
+      emit_gri(as, XG_ARITHi(xa), REX_64IR(ir, dest), k);
+  } else if (ra_hasreg(right)) {  /* IMUL r, mrm. */
+    emit_mrm(as, XO_IMUL, REX_64IR(ir, dest), right);
+  } else {  /* IMUL r, r, k. */
+    /* NYI: use lea/shl/add/sub (FOLD only does 2^k) depending on CPU. */
+    Reg left = asm_fuseloadm(as, lref, RSET_GPR, irt_is64(ir->t));
+    x86Op xo;
+    if (checki8(k)) { emit_i8(as, k); xo = XO_IMULi8;
+    } else { emit_i32(as, k); xo = XO_IMULi; }
+    emit_mrm(as, xo, REX_64IR(ir, dest), left);
+    return;
+  }
+  ra_left(as, dest, lref);
+}
+
+/* LEA is really a 4-operand ADD with an independent destination register,
+** up to two source registers and an immediate. One register can be scaled
+** by 1, 2, 4 or 8. This can be used to avoid moves or to fuse several
+** instructions.
+**
+** Currently only a few common cases are supported:
+** - 3-operand ADD:    y = a+b; y = a+k   with a and b already allocated
+** - Left ADD fusion:  y = (a+b)+k; y = (a+k)+b
+** - Right ADD fusion: y = a+(b+k)
+** The ommited variants have already been reduced by FOLD.
+**
+** There are more fusion opportunities, like gathering shifts or joining
+** common references. But these are probably not worth the trouble, since
+** array indexing is not decomposed and already makes use of all fields
+** of the ModRM operand.
+*/
+static int asm_lea(ASMState *as, IRIns *ir)
+{
+  IRIns *irl = IR(ir->op1);
+  IRIns *irr = IR(ir->op2);
+  RegSet allow = RSET_GPR;
+  Reg dest;
+  as->mrm.base = as->mrm.idx = RID_NONE;
+  as->mrm.scale = XM_SCALE1;
+  as->mrm.ofs = 0;
+  if (ra_hasreg(irl->r)) {
+    rset_clear(allow, irl->r);
+    ra_noweak(as, irl->r);
+    as->mrm.base = irl->r;
+    if (irref_isk(ir->op2) || ra_hasreg(irr->r)) {
+      /* The PHI renaming logic does a better job in some cases. */
+      if (ra_hasreg(ir->r) &&
+	  ((irt_isphi(irl->t) && as->phireg[ir->r] == ir->op1) ||
+	   (irt_isphi(irr->t) && as->phireg[ir->r] == ir->op2)))
+	return 0;
+      if (irref_isk(ir->op2)) {
+	as->mrm.ofs = irr->i;
+      } else {
+	rset_clear(allow, irr->r);
+	ra_noweak(as, irr->r);
+	as->mrm.idx = irr->r;
+      }
+    } else if (irr->o == IR_ADD && mayfuse(as, ir->op2) &&
+	       irref_isk(irr->op2)) {
+      Reg idx = ra_alloc1(as, irr->op1, allow);
+      rset_clear(allow, idx);
+      as->mrm.idx = (uint8_t)idx;
+      as->mrm.ofs = IR(irr->op2)->i;
+    } else {
+      return 0;
+    }
+  } else if (ir->op1 != ir->op2 && irl->o == IR_ADD && mayfuse(as, ir->op1) &&
+	     (irref_isk(ir->op2) || irref_isk(irl->op2))) {
+    Reg idx, base = ra_alloc1(as, irl->op1, allow);
+    rset_clear(allow, base);
+    as->mrm.base = (uint8_t)base;
+    if (irref_isk(ir->op2)) {
+      as->mrm.ofs = irr->i;
+      idx = ra_alloc1(as, irl->op2, allow);
+    } else {
+      as->mrm.ofs = IR(irl->op2)->i;
+      idx = ra_alloc1(as, ir->op2, allow);
+    }
+    rset_clear(allow, idx);
+    as->mrm.idx = (uint8_t)idx;
+  } else {
+    return 0;
+  }
+  dest = ra_dest(as, ir, allow);
+  emit_mrm(as, XO_LEA, dest, RID_MRM);
+  return 1;  /* Success. */
+}
+
+static void asm_add(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t))
+    asm_fparith(as, ir, XO_ADDSD);
+  else if (as->flagmcp == as->mcp || irt_is64(ir->t) || !asm_lea(as, ir))
+    asm_intarith(as, ir, XOg_ADD);
+}
+
+static void asm_sub(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t))
+    asm_fparith(as, ir, XO_SUBSD);
+  else  /* Note: no need for LEA trick here. i-k is encoded as i+(-k). */
+    asm_intarith(as, ir, XOg_SUB);
+}
+
+static void asm_mul(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t))
+    asm_fparith(as, ir, XO_MULSD);
+  else
+    asm_intarith(as, ir, XOg_X_IMUL);
+}
+
+#define asm_fpdiv(as, ir)	asm_fparith(as, ir, XO_DIVSD)
+
+static void asm_neg_not(ASMState *as, IRIns *ir, x86Group3 xg)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  emit_rr(as, XO_GROUP3, REX_64IR(ir, xg), dest);
+  ra_left(as, dest, ir->op1);
+}
+
+static void asm_neg(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t))
+    asm_fparith(as, ir, XO_XORPS);
+  else
+    asm_neg_not(as, ir, XOg_NEG);
+}
+
+#define asm_abs(as, ir)		asm_fparith(as, ir, XO_ANDPS)
+
+static void asm_intmin_max(ASMState *as, IRIns *ir, int cc)
+{
+  Reg right, dest = ra_dest(as, ir, RSET_GPR);
+  IRRef lref = ir->op1, rref = ir->op2;
+  if (irref_isk(rref)) { lref = rref; rref = ir->op1; }
+  right = ra_alloc1(as, rref, rset_exclude(RSET_GPR, dest));
+  emit_rr(as, XO_CMOV + (cc<<24), REX_64IR(ir, dest), right);
+  emit_rr(as, XO_CMP, REX_64IR(ir, dest), right);
+  ra_left(as, dest, lref);
+}
+
+static void asm_min(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t))
+    asm_fparith(as, ir, XO_MINSD);
+  else
+    asm_intmin_max(as, ir, CC_G);
+}
+
+static void asm_max(ASMState *as, IRIns *ir)
+{
+  if (irt_isnum(ir->t))
+    asm_fparith(as, ir, XO_MAXSD);
+  else
+    asm_intmin_max(as, ir, CC_L);
+}
+
+/* Note: don't use LEA for overflow-checking arithmetic! */
+#define asm_addov(as, ir)	asm_intarith(as, ir, XOg_ADD)
+#define asm_subov(as, ir)	asm_intarith(as, ir, XOg_SUB)
+#define asm_mulov(as, ir)	asm_intarith(as, ir, XOg_X_IMUL)
+
+#define asm_bnot(as, ir)	asm_neg_not(as, ir, XOg_NOT)
+
+static void asm_bswap(ASMState *as, IRIns *ir)
+{
+  Reg dest = ra_dest(as, ir, RSET_GPR);
+  as->mcp = emit_op(XO_BSWAP + ((dest&7) << 24),
+		    REX_64IR(ir, 0), dest, 0, as->mcp, 1);
+  ra_left(as, dest, ir->op1);
+}
+
+#define asm_band(as, ir)	asm_intarith(as, ir, XOg_AND)
+#define asm_bor(as, ir)		asm_intarith(as, ir, XOg_OR)
+#define asm_bxor(as, ir)	asm_intarith(as, ir, XOg_XOR)
+
+static void asm_bitshift(ASMState *as, IRIns *ir, x86Shift xs, x86Op xv)
+{
+  IRRef rref = ir->op2;
+  IRIns *irr = IR(rref);
+  Reg dest;
+  if (irref_isk(rref)) {  /* Constant shifts. */
+    int shift;
+    dest = ra_dest(as, ir, RSET_GPR);
+    shift = irr->i & (irt_is64(ir->t) ? 63 : 31);
+    if (!xv && shift && (as->flags & JIT_F_BMI2)) {
+      Reg left = asm_fuseloadm(as, ir->op1, RSET_GPR, irt_is64(ir->t));
+      if (left != dest) {  /* BMI2 rotate right by constant. */
+	emit_i8(as, xs == XOg_ROL ? -shift : shift);
+	emit_mrm(as, VEX_64IR(ir, XV_RORX), dest, left);
+	return;
+      }
+    }
+    switch (shift) {
+    case 0: break;
+    case 1: emit_rr(as, XO_SHIFT1, REX_64IR(ir, xs), dest); break;
+    default: emit_shifti(as, REX_64IR(ir, xs), dest, shift); break;
+    }
+  } else if ((as->flags & JIT_F_BMI2) && xv) {	/* BMI2 variable shifts. */
+    Reg left, right;
+    dest = ra_dest(as, ir, RSET_GPR);
+    right = ra_alloc1(as, rref, RSET_GPR);
+    left = asm_fuseloadm(as, ir->op1, rset_exclude(RSET_GPR, right),
+			 irt_is64(ir->t));
+    emit_mrm(as, VEX_64IR(ir, xv) ^ (right << 19), dest, left);
+    return;
+  } else {  /* Variable shifts implicitly use register cl (i.e. ecx). */
+    Reg right;
+    dest = ra_dest(as, ir, rset_exclude(RSET_GPR, RID_ECX));
+    if (dest == RID_ECX) {
+      dest = ra_scratch(as, rset_exclude(RSET_GPR, RID_ECX));
+      emit_rr(as, XO_MOV, REX_64IR(ir, RID_ECX), dest);
+    }
+    right = irr->r;
+    if (ra_noreg(right))
+      right = ra_allocref(as, rref, RID2RSET(RID_ECX));
+    else if (right != RID_ECX)
+      ra_scratch(as, RID2RSET(RID_ECX));
+    emit_rr(as, XO_SHIFTcl, REX_64IR(ir, xs), dest);
+    ra_noweak(as, right);
+    if (right != RID_ECX)
+      emit_rr(as, XO_MOV, RID_ECX, right);
+  }
+  ra_left(as, dest, ir->op1);
+  /*
+  ** Note: avoid using the flags resulting from a shift or rotate!
+  ** All of them cause a partial flag stall, except for r,1 shifts
+  ** (but not rotates). And a shift count of 0 leaves the flags unmodified.
+  */
+}
+
+#define asm_bshl(as, ir)	asm_bitshift(as, ir, XOg_SHL, XV_SHLX)
+#define asm_bshr(as, ir)	asm_bitshift(as, ir, XOg_SHR, XV_SHRX)
+#define asm_bsar(as, ir)	asm_bitshift(as, ir, XOg_SAR, XV_SARX)
+#define asm_brol(as, ir)	asm_bitshift(as, ir, XOg_ROL, 0)
+#define asm_bror(as, ir)	asm_bitshift(as, ir, XOg_ROR, 0)
+
+/* -- Comparisons --------------------------------------------------------- */
+
+/* Virtual flags for unordered FP comparisons. */
+#define VCC_U	0x1000		/* Unordered. */
+#define VCC_P	0x2000		/* Needs extra CC_P branch. */
+#define VCC_S	0x4000		/* Swap avoids CC_P branch. */
+#define VCC_PS	(VCC_P|VCC_S)
+
+/* Map of comparisons to flags. ORDER IR. */
+#define COMPFLAGS(ci, cin, cu, cf)	((ci)+((cu)<<4)+((cin)<<8)+(cf))
+static const uint16_t asm_compmap[IR_ABC+1] = {
+  /*                 signed non-eq unsigned flags */
+  /* LT  */ COMPFLAGS(CC_GE, CC_G,  CC_AE, VCC_PS),
+  /* GE  */ COMPFLAGS(CC_L,  CC_L,  CC_B,  0),
+  /* LE  */ COMPFLAGS(CC_G,  CC_G,  CC_A,  VCC_PS),
+  /* GT  */ COMPFLAGS(CC_LE, CC_L,  CC_BE, 0),
+  /* ULT */ COMPFLAGS(CC_AE, CC_A,  CC_AE, VCC_U),
+  /* UGE */ COMPFLAGS(CC_B,  CC_B,  CC_B,  VCC_U|VCC_PS),
+  /* ULE */ COMPFLAGS(CC_A,  CC_A,  CC_A,  VCC_U),
+  /* UGT */ COMPFLAGS(CC_BE, CC_B,  CC_BE, VCC_U|VCC_PS),
+  /* EQ  */ COMPFLAGS(CC_NE, CC_NE, CC_NE, VCC_P),
+  /* NE  */ COMPFLAGS(CC_E,  CC_E,  CC_E,  VCC_U|VCC_P),
+  /* ABC */ COMPFLAGS(CC_BE, CC_B,  CC_BE, VCC_U|VCC_PS)  /* Same as UGT. */
+};
+
+/* FP and integer comparisons. */
+static void asm_comp(ASMState *as, IRIns *ir)
+{
+  uint32_t cc = asm_compmap[ir->o];
+  if (irt_isnum(ir->t)) {
+    IRRef lref = ir->op1;
+    IRRef rref = ir->op2;
+    Reg left, right;
+    MCLabel l_around;
+    /*
+    ** An extra CC_P branch is required to preserve ordered/unordered
+    ** semantics for FP comparisons. This can be avoided by swapping
+    ** the operands and inverting the condition (except for EQ and UNE).
+    ** So always try to swap if possible.
+    **
+    ** Another option would be to swap operands to achieve better memory
+    ** operand fusion. But it's unlikely that this outweighs the cost
+    ** of the extra branches.
+    */
+    if (cc & VCC_S) {  /* Swap? */
+      IRRef tmp = lref; lref = rref; rref = tmp;
+      cc ^= (VCC_PS|(5<<4));  /* A <-> B, AE <-> BE, PS <-> none */
+    }
+    left = ra_alloc1(as, lref, RSET_FPR);
+    l_around = emit_label(as);
+    asm_guardcc(as, cc >> 4);
+    if (cc & VCC_P) {  /* Extra CC_P branch required? */
+      if (!(cc & VCC_U)) {
+	asm_guardcc(as, CC_P);  /* Branch to exit for ordered comparisons. */
+      } else if (l_around != as->invmcp) {
+	emit_sjcc(as, CC_P, l_around);  /* Branch around for unordered. */
+      } else {
+	/* Patched to mcloop by asm_loop_fixup. */
+	as->loopinv = 2;
+	if (as->realign)
+	  emit_sjcc(as, CC_P, as->mcp);
+	else
+	  emit_jcc(as, CC_P, as->mcp);
+      }
+    }
+    right = asm_fuseload(as, rref, rset_exclude(RSET_FPR, left));
+    emit_mrm(as, XO_UCOMISD, left, right);
+  } else {
+    IRRef lref = ir->op1, rref = ir->op2;
+    IROp leftop = (IROp)(IR(lref)->o);
+    Reg r64 = REX_64IR(ir, 0);
+    int32_t imm = 0;
+    lj_assertA(irt_is64(ir->t) || irt_isint(ir->t) ||
+	       irt_isu32(ir->t) || irt_isaddr(ir->t) || irt_isu8(ir->t),
+	       "bad comparison data type %d", irt_type(ir->t));
+    /* Swap constants (only for ABC) and fusable loads to the right. */
+    if (irref_isk(lref) || (!irref_isk(rref) && opisfusableload(leftop))) {
+      if ((cc & 0xc) == 0xc) cc ^= 0x53;  /* L <-> G, LE <-> GE */
+      else if ((cc & 0xa) == 0x2) cc ^= 0x55;  /* A <-> B, AE <-> BE */
+      lref = ir->op2; rref = ir->op1;
+    }
+    if (asm_isk32(as, rref, &imm)) {
+      IRIns *irl = IR(lref);
+      /* Check wether we can use test ins. Not for unsigned, since CF=0. */
+      int usetest = (imm == 0 && (cc & 0xa) != 0x2);
+      if (usetest && irl->o == IR_BAND && irl+1 == ir && !ra_used(irl)) {
+	/* Combine comp(BAND(ref, r/imm), 0) into test mrm, r/imm. */
+	Reg right, left = RID_NONE;
+	RegSet allow = RSET_GPR;
+	if (!asm_isk32(as, irl->op2, &imm)) {
+	  left = ra_alloc1(as, irl->op2, allow);
+	  rset_clear(allow, left);
+	} else {  /* Try to Fuse IRT_I8/IRT_U8 loads, too. See below. */
+	  IRIns *irll = IR(irl->op1);
+	  if (opisfusableload((IROp)irll->o) &&
+	      (irt_isi8(irll->t) || irt_isu8(irll->t))) {
+	    IRType1 origt = irll->t;  /* Temporarily flip types. */
+	    irll->t.irt = (irll->t.irt & ~IRT_TYPE) | IRT_INT;
+	    as->curins--;  /* Skip to BAND to avoid failing in noconflict(). */
+	    right = asm_fuseload(as, irl->op1, RSET_GPR);
+	    as->curins++;
+	    irll->t = origt;
+	    if (right != RID_MRM) goto test_nofuse;
+	    /* Fusion succeeded, emit test byte mrm, imm8. */
+	    asm_guardcc(as, cc);
+	    emit_i8(as, (imm & 0xff));
+	    emit_mrm(as, XO_GROUP3b, XOg_TEST, RID_MRM);
+	    return;
+	  }
+	}
+	as->curins--;  /* Skip to BAND to avoid failing in noconflict(). */
+	right = asm_fuseloadm(as, irl->op1, allow, r64);
+	as->curins++;  /* Undo the above. */
+      test_nofuse:
+	asm_guardcc(as, cc);
+	if (ra_noreg(left)) {
+	  emit_i32(as, imm);
+	  emit_mrm(as, XO_GROUP3, r64 + XOg_TEST, right);
+	} else {
+	  emit_mrm(as, XO_TEST, r64 + left, right);
+	}
+      } else {
+	Reg left;
+	if (opisfusableload((IROp)irl->o) &&
+	    ((irt_isu8(irl->t) && checku8(imm)) ||
+	     ((irt_isi8(irl->t) || irt_isi16(irl->t)) && checki8(imm)) ||
+	     (irt_isu16(irl->t) && checku16(imm) && checki8((int16_t)imm)))) {
+	  /* Only the IRT_INT case is fused by asm_fuseload.
+	  ** The IRT_I8/IRT_U8 loads and some IRT_I16/IRT_U16 loads
+	  ** are handled here.
+	  ** Note that cmp word [mem], imm16 should not be generated,
+	  ** since it has a length-changing prefix. Compares of a word
+	  ** against a sign-extended imm8 are ok, however.
+	  */
+	  IRType1 origt = irl->t;  /* Temporarily flip types. */
+	  irl->t.irt = (irl->t.irt & ~IRT_TYPE) | IRT_INT;
+	  left = asm_fuseload(as, lref, RSET_GPR);
+	  irl->t = origt;
+	  if (left == RID_MRM) {  /* Fusion succeeded? */
+	    if (irt_isu8(irl->t) || irt_isu16(irl->t))
+	      cc >>= 4;  /* Need unsigned compare. */
+	    asm_guardcc(as, cc);
+	    emit_i8(as, imm);
+	    emit_mrm(as, (irt_isi8(origt) || irt_isu8(origt)) ?
+			 XO_ARITHib : XO_ARITHiw8, r64 + XOg_CMP, RID_MRM);
+	    return;
+	  }  /* Otherwise handle register case as usual. */
+	} else {
+	  left = asm_fuseloadm(as, lref,
+			       irt_isu8(ir->t) ? RSET_GPR8 : RSET_GPR, r64);
+	}
+	asm_guardcc(as, cc);
+	if (usetest && left != RID_MRM) {
+	  /* Use test r,r instead of cmp r,0. */
+	  x86Op xo = XO_TEST;
+	  if (irt_isu8(ir->t)) {
+	    lj_assertA(ir->o == IR_EQ || ir->o == IR_NE, "bad usage");
+	    xo = XO_TESTb;
+	    if (!rset_test(RSET_RANGE(RID_EAX, RID_EBX+1), left)) {
+	      if (LJ_64) {
+		left |= FORCE_REX;
+	      } else {
+		emit_i32(as, 0xff);
+		emit_mrm(as, XO_GROUP3, XOg_TEST, left);
+		return;
+	      }
+	    }
+	  }
+	  emit_rr(as, xo, r64 + left, left);
+	  if (irl+1 == ir)  /* Referencing previous ins? */
+	    as->flagmcp = as->mcp;  /* Set flag to drop test r,r if possible. */
+	} else {
+	  emit_gmrmi(as, XG_ARITHi(XOg_CMP), r64 + left, imm);
+	}
+      }
+    } else {
+      Reg left = ra_alloc1(as, lref, RSET_GPR);
+      Reg right = asm_fuseloadm(as, rref, rset_exclude(RSET_GPR, left), r64);
+      asm_guardcc(as, cc);
+      emit_mrm(as, XO_CMP, r64 + left, right);
+    }
+  }
+}
+
+#define asm_equal(as, ir)	asm_comp(as, ir)
+
+#if LJ_32 && LJ_HASFFI
+/* 64 bit integer comparisons in 32 bit mode. */
+static void asm_comp_int64(ASMState *as, IRIns *ir)
+{
+  uint32_t cc = asm_compmap[(ir-1)->o];
+  RegSet allow = RSET_GPR;
+  Reg lefthi = RID_NONE, leftlo = RID_NONE;
+  Reg righthi = RID_NONE, rightlo = RID_NONE;
+  MCLabel l_around;
+  x86ModRM mrm;
+
+  as->curins--;  /* Skip loword ins. Avoids failing in noconflict(), too. */
+
+  /* Allocate/fuse hiword operands. */
+  if (irref_isk(ir->op2)) {
+    lefthi = asm_fuseload(as, ir->op1, allow);
+  } else {
+    lefthi = ra_alloc1(as, ir->op1, allow);
+    rset_clear(allow, lefthi);
+    righthi = asm_fuseload(as, ir->op2, allow);
+    if (righthi == RID_MRM) {
+      if (as->mrm.base != RID_NONE) rset_clear(allow, as->mrm.base);
+      if (as->mrm.idx != RID_NONE) rset_clear(allow, as->mrm.idx);
+    } else {
+      rset_clear(allow, righthi);
+    }
+  }
+  mrm = as->mrm;  /* Save state for hiword instruction. */
+
+  /* Allocate/fuse loword operands. */
+  if (irref_isk((ir-1)->op2)) {
+    leftlo = asm_fuseload(as, (ir-1)->op1, allow);
+  } else {
+    leftlo = ra_alloc1(as, (ir-1)->op1, allow);
+    rset_clear(allow, leftlo);
+    rightlo = asm_fuseload(as, (ir-1)->op2, allow);
+  }
+
+  /* All register allocations must be performed _before_ this point. */
+  l_around = emit_label(as);
+  as->invmcp = as->flagmcp = NULL;  /* Cannot use these optimizations. */
+
+  /* Loword comparison and branch. */
+  asm_guardcc(as, cc >> 4);  /* Always use unsigned compare for loword. */
+  if (ra_noreg(rightlo)) {
+    int32_t imm = IR((ir-1)->op2)->i;
+    if (imm == 0 && ((cc >> 4) & 0xa) != 0x2 && leftlo != RID_MRM)
+      emit_rr(as, XO_TEST, leftlo, leftlo);
+    else
+      emit_gmrmi(as, XG_ARITHi(XOg_CMP), leftlo, imm);
+  } else {
+    emit_mrm(as, XO_CMP, leftlo, rightlo);
+  }
+
+  /* Hiword comparison and branches. */
+  if ((cc & 15) != CC_NE)
+    emit_sjcc(as, CC_NE, l_around);  /* Hiword unequal: skip loword compare. */
+  if ((cc & 15) != CC_E)
+    asm_guardcc(as, cc >> 8);  /* Hiword compare without equality check. */
+  as->mrm = mrm;  /* Restore state. */
+  if (ra_noreg(righthi)) {
+    int32_t imm = IR(ir->op2)->i;
+    if (imm == 0 && (cc & 0xa) != 0x2 && lefthi != RID_MRM)
+      emit_rr(as, XO_TEST, lefthi, lefthi);
+    else
+      emit_gmrmi(as, XG_ARITHi(XOg_CMP), lefthi, imm);
+  } else {
+    emit_mrm(as, XO_CMP, lefthi, righthi);
+  }
+}
+#endif
+
+/* -- Split register ops -------------------------------------------------- */
+
+/* Hiword op of a split 32/32 or 64/64 bit op. Previous op is the loword op. */
+static void asm_hiop(ASMState *as, IRIns *ir)
+{
+  /* HIOP is marked as a store because it needs its own DCE logic. */
+  int uselo = ra_used(ir-1), usehi = ra_used(ir);  /* Loword/hiword used? */
+  if (LJ_UNLIKELY(!(as->flags & JIT_F_OPT_DCE))) uselo = usehi = 1;
+#if LJ_32 && LJ_HASFFI
+  if ((ir-1)->o == IR_CONV) {  /* Conversions to/from 64 bit. */
+    as->curins--;  /* Always skip the CONV. */
+    if (usehi || uselo)
+      asm_conv64(as, ir);
+    return;
+  } else if ((ir-1)->o <= IR_NE) {  /* 64 bit integer comparisons. ORDER IR. */
+    asm_comp_int64(as, ir);
+    return;
+  } else if ((ir-1)->o == IR_XSTORE) {
+    if ((ir-1)->r != RID_SINK)
+      asm_fxstore(as, ir);
+    return;
+  }
+#endif
+  if (!usehi) return;  /* Skip unused hiword op for all remaining ops. */
+  switch ((ir-1)->o) {
+#if LJ_32 && LJ_HASFFI
+  case IR_ADD:
+    as->flagmcp = NULL;
+    as->curins--;
+    asm_intarith(as, ir, XOg_ADC);
+    asm_intarith(as, ir-1, XOg_ADD);
+    break;
+  case IR_SUB:
+    as->flagmcp = NULL;
+    as->curins--;
+    asm_intarith(as, ir, XOg_SBB);
+    asm_intarith(as, ir-1, XOg_SUB);
+    break;
+  case IR_NEG: {
+    Reg dest = ra_dest(as, ir, RSET_GPR);
+    emit_rr(as, XO_GROUP3, XOg_NEG, dest);
+    emit_i8(as, 0);
+    emit_rr(as, XO_ARITHi8, XOg_ADC, dest);
+    ra_left(as, dest, ir->op1);
+    as->curins--;
+    asm_neg_not(as, ir-1, XOg_NEG);
+    break;
+    }
+  case IR_CNEWI:
+    /* Nothing to do here. Handled by CNEWI itself. */
+    break;
+#endif
+  case IR_CALLN: case IR_CALLL: case IR_CALLS: case IR_CALLXS:
+    if (!uselo)
+      ra_allocref(as, ir->op1, RID2RSET(RID_RETLO));  /* Mark lo op as used. */
+    break;
+  default: lj_assertA(0, "bad HIOP for op %d", (ir-1)->o); break;
+  }
+}
+
+/* -- Profiling ----------------------------------------------------------- */
+
+static void asm_prof(ASMState *as, IRIns *ir)
+{
+  UNUSED(ir);
+  asm_guardcc(as, CC_NE);
+  emit_i8(as, HOOK_PROFILE);
+  emit_rma(as, XO_GROUP3b, XOg_TEST, &J2G(as->J)->hookmask);
+}
+
+/* -- Stack handling ------------------------------------------------------ */
+
+/* Check Lua stack size for overflow. Use exit handler as fallback. */
+static void asm_stack_check(ASMState *as, BCReg topslot,
+			    IRIns *irp, RegSet allow, ExitNo exitno)
+{
+  /* Try to get an unused temp. register, otherwise spill/restore eax. */
+  Reg pbase = irp ? irp->r : RID_BASE;
+  Reg r = allow ? rset_pickbot(allow) : RID_EAX;
+  emit_jcc(as, CC_B, exitstub_addr(as->J, exitno));
+  if (allow == RSET_EMPTY)  /* Restore temp. register. */
+    emit_rmro(as, XO_MOV, r|REX_64, RID_ESP, 0);
+  else
+    ra_modified(as, r);
+  emit_gri(as, XG_ARITHi(XOg_CMP), r|REX_GC64, (int32_t)(8*topslot));
+  if (ra_hasreg(pbase) && pbase != r)
+    emit_rr(as, XO_ARITH(XOg_SUB), r|REX_GC64, pbase);
+  else
+#if LJ_GC64
+    emit_rmro(as, XO_ARITH(XOg_SUB), r|REX_64, RID_DISPATCH,
+	      (int32_t)dispofs(as, &J2G(as->J)->jit_base));
+#else
+    emit_rmro(as, XO_ARITH(XOg_SUB), r, RID_NONE,
+	      ptr2addr(&J2G(as->J)->jit_base));
+#endif
+  emit_rmro(as, XO_MOV, r|REX_GC64, r, offsetof(lua_State, maxstack));
+  emit_getgl(as, r, cur_L);
+  if (allow == RSET_EMPTY)  /* Spill temp. register. */
+    emit_rmro(as, XO_MOVto, r|REX_64, RID_ESP, 0);
+}
+
+/* Restore Lua stack from on-trace state. */
+static void asm_stack_restore(ASMState *as, SnapShot *snap)
+{
+  SnapEntry *map = &as->T->snapmap[snap->mapofs];
+#if !LJ_FR2 || defined(LUA_USE_ASSERT)
+  SnapEntry *flinks = &as->T->snapmap[snap_nextofs(as->T, snap)-1-LJ_FR2];
+#endif
+  MSize n, nent = snap->nent;
+  /* Store the value of all modified slots to the Lua stack. */
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    BCReg s = snap_slot(sn);
+    int32_t ofs = 8*((int32_t)s-1-LJ_FR2);
+    IRRef ref = snap_ref(sn);
+    IRIns *ir = IR(ref);
+    if ((sn & SNAP_NORESTORE))
+      continue;
+    if ((sn & SNAP_KEYINDEX)) {
+      emit_movmroi(as, RID_BASE, ofs+4, LJ_KEYINDEX);
+      if (irref_isk(ref)) {
+	emit_movmroi(as, RID_BASE, ofs, ir->i);
+      } else {
+	Reg src = ra_alloc1(as, ref, rset_exclude(RSET_GPR, RID_BASE));
+	emit_movtomro(as, src, RID_BASE, ofs);
+      }
+    } else if (irt_isnum(ir->t)) {
+      Reg src = ra_alloc1(as, ref, RSET_FPR);
+      emit_rmro(as, XO_MOVSDto, src, RID_BASE, ofs);
+    } else {
+      lj_assertA(irt_ispri(ir->t) || irt_isaddr(ir->t) ||
+		 (LJ_DUALNUM && irt_isinteger(ir->t)),
+		 "restore of IR type %d", irt_type(ir->t));
+      if (!irref_isk(ref)) {
+	Reg src = ra_alloc1(as, ref, rset_exclude(RSET_GPR, RID_BASE));
+#if LJ_GC64
+	if (irt_is64(ir->t)) {
+	  /* TODO: 64 bit store + 32 bit load-modify-store is suboptimal. */
+	  emit_u32(as, irt_toitype(ir->t) << 15);
+	  emit_rmro(as, XO_ARITHi, XOg_OR, RID_BASE, ofs+4);
+	} else if (LJ_DUALNUM && irt_isinteger(ir->t)) {
+	  emit_movmroi(as, RID_BASE, ofs+4, LJ_TISNUM << 15);
+	} else {
+	  emit_movmroi(as, RID_BASE, ofs+4, (irt_toitype(ir->t)<<15)|0x7fff);
+	}
+#endif
+	emit_movtomro(as, REX_64IR(ir, src), RID_BASE, ofs);
+#if LJ_GC64
+      } else {
+	TValue k;
+	lj_ir_kvalue(as->J->L, &k, ir);
+	if (tvisnil(&k)) {
+	  emit_i32(as, -1);
+	  emit_rmro(as, XO_MOVmi, REX_64, RID_BASE, ofs);
+	} else {
+	  emit_movmroi(as, RID_BASE, ofs+4, k.u32.hi);
+	  emit_movmroi(as, RID_BASE, ofs, k.u32.lo);
+	}
+#else
+      } else if (!irt_ispri(ir->t)) {
+	emit_movmroi(as, RID_BASE, ofs, ir->i);
+#endif
+      }
+      if ((sn & (SNAP_CONT|SNAP_FRAME))) {
+#if !LJ_FR2
+	if (s != 0)  /* Do not overwrite link to previous frame. */
+	  emit_movmroi(as, RID_BASE, ofs+4, (int32_t)(*flinks--));
+#endif
+#if !LJ_GC64
+      } else {
+	if (!(LJ_64 && irt_islightud(ir->t)))
+	  emit_movmroi(as, RID_BASE, ofs+4, irt_toitype(ir->t));
+#endif
+      }
+    }
+    checkmclim(as);
+  }
+  lj_assertA(map + nent == flinks, "inconsistent frames in snapshot");
+}
+
+/* -- GC handling --------------------------------------------------------- */
+
+/* Check GC threshold and do one or more GC steps. */
+static void asm_gc_check(ASMState *as)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_gc_step_jit];
+  IRRef args[2];
+  MCLabel l_end;
+  Reg tmp;
+  ra_evictset(as, RSET_SCRATCH);
+  l_end = emit_label(as);
+  /* Exit trace if in GCSatomic or GCSfinalize. Avoids syncing GC objects. */
+  asm_guardcc(as, CC_NE);  /* Assumes asm_snap_prep() already done. */
+  emit_rr(as, XO_TEST, RID_RET, RID_RET);
+  args[0] = ASMREF_TMP1;  /* global_State *g */
+  args[1] = ASMREF_TMP2;  /* MSize steps     */
+  asm_gencall(as, ci, args);
+  tmp = ra_releasetmp(as, ASMREF_TMP1);
+#if LJ_GC64
+  emit_rmro(as, XO_LEA, tmp|REX_64, RID_DISPATCH, GG_DISP2G);
+#else
+  emit_loada(as, tmp, J2G(as->J));
+#endif
+  emit_loadi(as, ra_releasetmp(as, ASMREF_TMP2), as->gcsteps);
+  /* Jump around GC step if GC total < GC threshold. */
+  emit_sjcc(as, CC_B, l_end);
+  emit_opgl(as, XO_ARITH(XOg_CMP), tmp|REX_GC64, gc.threshold);
+  emit_getgl(as, tmp, gc.total);
+  as->gcsteps = 0;
+  checkmclim(as);
+}
+
+/* -- Loop handling ------------------------------------------------------- */
+
+/* Fixup the loop branch. */
+static void asm_loop_fixup(ASMState *as)
+{
+  MCode *p = as->mctop;
+  MCode *target = as->mcp;
+  if (as->realign) {  /* Realigned loops use short jumps. */
+    as->realign = NULL;  /* Stop another retry. */
+    lj_assertA(((intptr_t)target & 15) == 0, "loop realign failed");
+    if (as->loopinv) {  /* Inverted loop branch? */
+      p -= 5;
+      p[0] = XI_JMP;
+      lj_assertA(target - p >= -128, "loop realign failed");
+      p[-1] = (MCode)(target - p);  /* Patch sjcc. */
+      if (as->loopinv == 2)
+	p[-3] = (MCode)(target - p + 2);  /* Patch opt. short jp. */
+    } else {
+      lj_assertA(target - p >= -128, "loop realign failed");
+      p[-1] = (MCode)(int8_t)(target - p);  /* Patch short jmp. */
+      p[-2] = XI_JMPs;
+    }
+  } else {
+    MCode *newloop;
+    p[-5] = XI_JMP;
+    if (as->loopinv) {  /* Inverted loop branch? */
+      /* asm_guardcc already inverted the jcc and patched the jmp. */
+      p -= 5;
+      newloop = target+4;
+      *(int32_t *)(p-4) = (int32_t)(target - p);  /* Patch jcc. */
+      if (as->loopinv == 2) {
+	*(int32_t *)(p-10) = (int32_t)(target - p + 6);  /* Patch opt. jp. */
+	newloop = target+8;
+      }
+    } else {  /* Otherwise just patch jmp. */
+      *(int32_t *)(p-4) = (int32_t)(target - p);
+      newloop = target+3;
+    }
+    /* Realign small loops and shorten the loop branch. */
+    if (newloop >= p - 128) {
+      as->realign = newloop;  /* Force a retry and remember alignment. */
+      as->curins = as->stopins;  /* Abort asm_trace now. */
+      as->T->nins = as->orignins;  /* Remove any added renames. */
+    }
+  }
+}
+
+/* Fixup the tail of the loop. */
+static void asm_loop_tail_fixup(ASMState *as)
+{
+  UNUSED(as);  /* Nothing to do. */
+}
+
+/* -- Head of trace ------------------------------------------------------- */
+
+/* Coalesce BASE register for a root trace. */
+static void asm_head_root_base(ASMState *as)
+{
+  IRIns *ir = IR(REF_BASE);
+  Reg r = ir->r;
+  if (ra_hasreg(r)) {
+    ra_free(as, r);
+    if (rset_test(as->modset, r) || irt_ismarked(ir->t))
+      ir->r = RID_INIT;  /* No inheritance for modified BASE register. */
+    if (r != RID_BASE)
+      emit_rr(as, XO_MOV, r|REX_GC64, RID_BASE);
+  }
+}
+
+/* Coalesce or reload BASE register for a side trace. */
+static RegSet asm_head_side_base(ASMState *as, IRIns *irp, RegSet allow)
+{
+  IRIns *ir = IR(REF_BASE);
+  Reg r = ir->r;
+  if (ra_hasreg(r)) {
+    ra_free(as, r);
+    if (rset_test(as->modset, r) || irt_ismarked(ir->t))
+      ir->r = RID_INIT;  /* No inheritance for modified BASE register. */
+    if (irp->r == r) {
+      rset_clear(allow, r);  /* Mark same BASE register as coalesced. */
+    } else if (ra_hasreg(irp->r) && rset_test(as->freeset, irp->r)) {
+      /* Move from coalesced parent reg. */
+      rset_clear(allow, irp->r);
+      emit_rr(as, XO_MOV, r|REX_GC64, irp->r);
+    } else {
+      emit_getgl(as, r, jit_base);  /* Otherwise reload BASE. */
+    }
+  }
+  return allow;
+}
+
+/* -- Tail of trace ------------------------------------------------------- */
+
+/* Fixup the tail code. */
+static void asm_tail_fixup(ASMState *as, TraceNo lnk)
+{
+  /* Note: don't use as->mcp swap + emit_*: emit_op overwrites more bytes. */
+  MCode *p = as->mctop;
+  MCode *target, *q;
+  int32_t spadj = as->T->spadjust;
+  if (spadj == 0) {
+    p -= LJ_64 ? 7 : 6;
+  } else {
+    MCode *p1;
+    /* Patch stack adjustment. */
+    if (checki8(spadj)) {
+      p -= 3;
+      p1 = p-6;
+      *p1 = (MCode)spadj;
+    } else {
+      p1 = p-9;
+      *(int32_t *)p1 = spadj;
+    }
+#if LJ_64
+    p1[-3] = 0x48;
+#endif
+    p1[-2] = (MCode)(checki8(spadj) ? XI_ARITHi8 : XI_ARITHi);
+    p1[-1] = MODRM(XM_REG, XOg_ADD, RID_ESP);
+  }
+  /* Patch exit branch. */
+  target = lnk ? traceref(as->J, lnk)->mcode : (MCode *)lj_vm_exit_interp;
+  *(int32_t *)(p-4) = jmprel(as->J, p, target);
+  p[-5] = XI_JMP;
+  /* Drop unused mcode tail. Fill with NOPs to make the prefetcher happy. */
+  for (q = as->mctop-1; q >= p; q--)
+    *q = XI_NOP;
+  as->mctop = p;
+}
+
+/* Prepare tail of code. */
+static void asm_tail_prep(ASMState *as)
+{
+  MCode *p = as->mctop;
+  /* Realign and leave room for backwards loop branch or exit branch. */
+  if (as->realign) {
+    int i = ((int)(intptr_t)as->realign) & 15;
+    /* Fill unused mcode tail with NOPs to make the prefetcher happy. */
+    while (i-- > 0)
+      *--p = XI_NOP;
+    as->mctop = p;
+    p -= (as->loopinv ? 5 : 2);  /* Space for short/near jmp. */
+  } else {
+    p -= 5;  /* Space for exit branch (near jmp). */
+  }
+  if (as->loopref) {
+    as->invmcp = as->mcp = p;
+  } else {
+    /* Leave room for ESP adjustment: add esp, imm or lea esp, [esp+imm] */
+    as->mcp = p - (LJ_64 ? 7 : 6);
+    as->invmcp = NULL;
+  }
+}
+
+/* -- Trace setup --------------------------------------------------------- */
+
+/* Ensure there are enough stack slots for call arguments. */
+static Reg asm_setup_call_slots(ASMState *as, IRIns *ir, const CCallInfo *ci)
+{
+  IRRef args[CCI_NARGS_MAX*2];
+  int nslots;
+  asm_collectargs(as, ir, ci, args);
+  nslots = asm_count_call_slots(as, ci, args);
+  if (nslots > as->evenspill)  /* Leave room for args in stack slots. */
+    as->evenspill = nslots;
+#if LJ_64
+  return irt_isfp(ir->t) ? REGSP_HINT(RID_FPRET) : REGSP_HINT(RID_RET);
+#else
+  return irt_isfp(ir->t) ? REGSP_INIT : REGSP_HINT(RID_RET);
+#endif
+}
+
+/* Target-specific setup. */
+static void asm_setup_target(ASMState *as)
+{
+  asm_exitstub_setup(as, as->T->nsnap);
+  as->mrm.base = 0;
+}
+
+/* -- Trace patching ------------------------------------------------------ */
+
+static const uint8_t map_op1[256] = {
+0x92,0x92,0x92,0x92,0x52,0x45,0x51,0x51,0x92,0x92,0x92,0x92,0x52,0x45,0x51,0x20,
+0x92,0x92,0x92,0x92,0x52,0x45,0x51,0x51,0x92,0x92,0x92,0x92,0x52,0x45,0x51,0x51,
+0x92,0x92,0x92,0x92,0x52,0x45,0x10,0x51,0x92,0x92,0x92,0x92,0x52,0x45,0x10,0x51,
+0x92,0x92,0x92,0x92,0x52,0x45,0x10,0x51,0x92,0x92,0x92,0x92,0x52,0x45,0x10,0x51,
+#if LJ_64
+0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x14,0x14,0x14,0x14,0x14,0x14,0x14,0x14,
+#else
+0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,
+#endif
+0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,
+0x51,0x51,0x92,0x92,0x10,0x10,0x12,0x11,0x45,0x86,0x52,0x93,0x51,0x51,0x51,0x51,
+0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x52,
+0x93,0x86,0x93,0x93,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,
+0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x51,0x47,0x51,0x51,0x51,0x51,0x51,
+#if LJ_64
+0x59,0x59,0x59,0x59,0x51,0x51,0x51,0x51,0x52,0x45,0x51,0x51,0x51,0x51,0x51,0x51,
+#else
+0x55,0x55,0x55,0x55,0x51,0x51,0x51,0x51,0x52,0x45,0x51,0x51,0x51,0x51,0x51,0x51,
+#endif
+0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x05,0x05,0x05,0x05,0x05,0x05,0x05,0x05,
+0x93,0x93,0x53,0x51,0x70,0x71,0x93,0x86,0x54,0x51,0x53,0x51,0x51,0x52,0x51,0x51,
+0x92,0x92,0x92,0x92,0x52,0x52,0x51,0x51,0x92,0x92,0x92,0x92,0x92,0x92,0x92,0x92,
+0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x45,0x45,0x47,0x52,0x51,0x51,0x51,0x51,
+0x10,0x51,0x10,0x10,0x51,0x51,0x63,0x66,0x51,0x51,0x51,0x51,0x51,0x51,0x92,0x92
+};
+
+static const uint8_t map_op2[256] = {
+0x93,0x93,0x93,0x93,0x52,0x52,0x52,0x52,0x52,0x52,0x51,0x52,0x51,0x93,0x52,0x94,
+0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,
+0x53,0x53,0x53,0x53,0x53,0x53,0x53,0x53,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,
+0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x34,0x51,0x35,0x51,0x51,0x51,0x51,0x51,
+0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,
+0x53,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,
+0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,
+0x94,0x54,0x54,0x54,0x93,0x93,0x93,0x52,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,
+0x46,0x46,0x46,0x46,0x46,0x46,0x46,0x46,0x46,0x46,0x46,0x46,0x46,0x46,0x46,0x46,
+0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,
+0x52,0x52,0x52,0x93,0x94,0x93,0x51,0x51,0x52,0x52,0x52,0x93,0x94,0x93,0x93,0x93,
+0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x94,0x93,0x93,0x93,0x93,0x93,
+0x93,0x93,0x94,0x93,0x94,0x94,0x94,0x93,0x52,0x52,0x52,0x52,0x52,0x52,0x52,0x52,
+0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,
+0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,
+0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x93,0x52
+};
+
+static uint32_t asm_x86_inslen(const uint8_t* p)
+{
+  uint32_t result = 0;
+  uint32_t prefixes = 0;
+  uint32_t x = map_op1[*p];
+  for (;;) {
+    switch (x >> 4) {
+    case 0: return result + x + (prefixes & 4);
+    case 1: prefixes |= x; x = map_op1[*++p]; result++; break;
+    case 2: x = map_op2[*++p]; break;
+    case 3: p++; goto mrm;
+    case 4: result -= (prefixes & 2);  /* fallthrough */
+    case 5: return result + (x & 15);
+    case 6:  /* Group 3. */
+      if (p[1] & 0x38) x = 2;
+      else if ((prefixes & 2) && (x == 0x66)) x = 4;
+      goto mrm;
+    case 7: /* VEX c4/c5. */
+      if (LJ_32 && p[1] < 0xc0) {
+	x = 2;
+	goto mrm;
+      }
+      if (x == 0x70) {
+	x = *++p & 0x1f;
+	result++;
+	if (x >= 2) {
+	  p += 2;
+	  result += 2;
+	  goto mrm;
+	}
+      }
+      p++;
+      result++;
+      x = map_op2[*++p];
+      break;
+    case 8: result -= (prefixes & 2);  /* fallthrough */
+    case 9: mrm:  /* ModR/M and possibly SIB. */
+      result += (x & 15);
+      x = *++p;
+      switch (x >> 6) {
+      case 0: if ((x & 7) == 5) return result + 4; break;
+      case 1: result++; break;
+      case 2: result += 4; break;
+      case 3: return result;
+      }
+      if ((x & 7) == 4) {
+	result++;
+	if (x < 0x40 && (p[1] & 7) == 5) result += 4;
+      }
+      return result;
+    }
+  }
+}
+
+/* Patch exit jumps of existing machine code to a new target. */
+void lj_asm_patchexit(jit_State *J, GCtrace *T, ExitNo exitno, MCode *target)
+{
+  MCode *p = T->mcode;
+  MCode *mcarea = lj_mcode_patch(J, p, 0);
+  MSize len = T->szmcode;
+  MCode *px = exitstub_addr(J, exitno) - 6;
+  MCode *pe = p+len-6;
+  MCode *pgc = NULL;
+#if LJ_GC64
+  uint32_t statei = (uint32_t)(GG_OFS(g.vmstate) - GG_OFS(dispatch));
+#else
+  uint32_t statei = u32ptr(&J2G(J)->vmstate);
+#endif
+  if (len > 5 && p[len-5] == XI_JMP && p+len-6 + *(int32_t *)(p+len-4) == px)
+    *(int32_t *)(p+len-4) = jmprel(J, p+len, target);
+  /* Do not patch parent exit for a stack check. Skip beyond vmstate update. */
+  for (; p < pe; p += asm_x86_inslen(p)) {
+    intptr_t ofs = LJ_GC64 ? (p[0] & 0xf0) == 0x40 : LJ_64;
+    if (*(uint32_t *)(p+2+ofs) == statei && p[ofs+LJ_GC64-LJ_64] == XI_MOVmi)
+      break;
+  }
+  lj_assertJ(p < pe, "instruction length decoder failed");
+  for (; p < pe; p += asm_x86_inslen(p)) {
+    if ((*(uint16_t *)p & 0xf0ff) == 0x800f && p + *(int32_t *)(p+2) == px &&
+	p != pgc) {
+      *(int32_t *)(p+2) = jmprel(J, p+6, target);
+    } else if (*p == XI_CALL &&
+	      (void *)(p+5+*(int32_t *)(p+1)) == (void *)lj_gc_step_jit) {
+      pgc = p+7;  /* Do not patch GC check exit. */
+    }
+  }
+  lj_mcode_sync(T->mcode, T->mcode + T->szmcode);
+  lj_mcode_patch(J, mcarea, 1);
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_assert.c b/libs/luajit-cmake/luajit/src/lj_assert.c
new file mode 100644
index 0000000..4b713b2
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_assert.c
@@ -0,0 +1,28 @@
+/*
+** Internal assertions.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_assert_c
+#define LUA_CORE
+
+#if defined(LUA_USE_ASSERT) || defined(LUA_USE_APICHECK)
+
+#include <stdio.h>
+
+#include "lj_obj.h"
+
+void lj_assert_fail(global_State *g, const char *file, int line,
+		    const char *func, const char *fmt, ...)
+{
+  va_list argp;
+  va_start(argp, fmt);
+  fprintf(stderr, "LuaJIT ASSERT %s:%d: %s: ", file, line, func);
+  vfprintf(stderr, fmt, argp);
+  fputc('\n', stderr);
+  va_end(argp);
+  UNUSED(g);  /* May be NULL. TODO: optionally dump state. */
+  abort();
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_bc.c b/libs/luajit-cmake/luajit/src/lj_bc.c
new file mode 100644
index 0000000..b692cb5
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_bc.c
@@ -0,0 +1,14 @@
+/*
+** Bytecode instruction modes.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_bc_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_bc.h"
+
+/* Bytecode offsets and bytecode instruction modes. */
+#include "lj_bcdef.h"
+
diff --git a/libs/luajit-cmake/luajit/src/lj_bc.h b/libs/luajit-cmake/luajit/src/lj_bc.h
new file mode 100644
index 0000000..02356e5
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_bc.h
@@ -0,0 +1,265 @@
+/*
+** Bytecode instruction format.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_BC_H
+#define _LJ_BC_H
+
+#include "lj_def.h"
+#include "lj_arch.h"
+
+/* Bytecode instruction format, 32 bit wide, fields of 8 or 16 bit:
+**
+** +----+----+----+----+
+** | B  | C  | A  | OP | Format ABC
+** +----+----+----+----+
+** |    D    | A  | OP | Format AD
+** +--------------------
+** MSB               LSB
+**
+** In-memory instructions are always stored in host byte order.
+*/
+
+/* Operand ranges and related constants. */
+#define BCMAX_A		0xff
+#define BCMAX_B		0xff
+#define BCMAX_C		0xff
+#define BCMAX_D		0xffff
+#define BCBIAS_J	0x8000
+#define NO_REG		BCMAX_A
+#define NO_JMP		(~(BCPos)0)
+
+/* Macros to get instruction fields. */
+#define bc_op(i)	((BCOp)((i)&0xff))
+#define bc_a(i)		((BCReg)(((i)>>8)&0xff))
+#define bc_b(i)		((BCReg)((i)>>24))
+#define bc_c(i)		((BCReg)(((i)>>16)&0xff))
+#define bc_d(i)		((BCReg)((i)>>16))
+#define bc_j(i)		((ptrdiff_t)bc_d(i)-BCBIAS_J)
+
+/* Macros to set instruction fields. */
+#define setbc_byte(p, x, ofs) \
+  ((uint8_t *)(p))[LJ_ENDIAN_SELECT(ofs, 3-ofs)] = (uint8_t)(x)
+#define setbc_op(p, x)	setbc_byte(p, (x), 0)
+#define setbc_a(p, x)	setbc_byte(p, (x), 1)
+#define setbc_b(p, x)	setbc_byte(p, (x), 3)
+#define setbc_c(p, x)	setbc_byte(p, (x), 2)
+#define setbc_d(p, x) \
+  ((uint16_t *)(p))[LJ_ENDIAN_SELECT(1, 0)] = (uint16_t)(x)
+#define setbc_j(p, x)	setbc_d(p, (BCPos)((int32_t)(x)+BCBIAS_J))
+
+/* Macros to compose instructions. */
+#define BCINS_ABC(o, a, b, c) \
+  (((BCIns)(o))|((BCIns)(a)<<8)|((BCIns)(b)<<24)|((BCIns)(c)<<16))
+#define BCINS_AD(o, a, d) \
+  (((BCIns)(o))|((BCIns)(a)<<8)|((BCIns)(d)<<16))
+#define BCINS_AJ(o, a, j)	BCINS_AD(o, a, (BCPos)((int32_t)(j)+BCBIAS_J))
+
+/* Bytecode instruction definition. Order matters, see below.
+**
+** (name, filler, Amode, Bmode, Cmode or Dmode, metamethod)
+**
+** The opcode name suffixes specify the type for RB/RC or RD:
+** V = variable slot
+** S = string const
+** N = number const
+** P = primitive type (~itype)
+** B = unsigned byte literal
+** M = multiple args/results
+*/
+#define BCDEF(_) \
+  /* Comparison ops. ORDER OPR. */ \
+  _(ISLT,	var,	___,	var,	lt) \
+  _(ISGE,	var,	___,	var,	lt) \
+  _(ISLE,	var,	___,	var,	le) \
+  _(ISGT,	var,	___,	var,	le) \
+  \
+  _(ISEQV,	var,	___,	var,	eq) \
+  _(ISNEV,	var,	___,	var,	eq) \
+  _(ISEQS,	var,	___,	str,	eq) \
+  _(ISNES,	var,	___,	str,	eq) \
+  _(ISEQN,	var,	___,	num,	eq) \
+  _(ISNEN,	var,	___,	num,	eq) \
+  _(ISEQP,	var,	___,	pri,	eq) \
+  _(ISNEP,	var,	___,	pri,	eq) \
+  \
+  /* Unary test and copy ops. */ \
+  _(ISTC,	dst,	___,	var,	___) \
+  _(ISFC,	dst,	___,	var,	___) \
+  _(IST,	___,	___,	var,	___) \
+  _(ISF,	___,	___,	var,	___) \
+  _(ISTYPE,	var,	___,	lit,	___) \
+  _(ISNUM,	var,	___,	lit,	___) \
+  \
+  /* Unary ops. */ \
+  _(MOV,	dst,	___,	var,	___) \
+  _(NOT,	dst,	___,	var,	___) \
+  _(UNM,	dst,	___,	var,	unm) \
+  _(LEN,	dst,	___,	var,	len) \
+  \
+  /* Binary ops. ORDER OPR. VV last, POW must be next. */ \
+  _(ADDVN,	dst,	var,	num,	add) \
+  _(SUBVN,	dst,	var,	num,	sub) \
+  _(MULVN,	dst,	var,	num,	mul) \
+  _(DIVVN,	dst,	var,	num,	div) \
+  _(MODVN,	dst,	var,	num,	mod) \
+  \
+  _(ADDNV,	dst,	var,	num,	add) \
+  _(SUBNV,	dst,	var,	num,	sub) \
+  _(MULNV,	dst,	var,	num,	mul) \
+  _(DIVNV,	dst,	var,	num,	div) \
+  _(MODNV,	dst,	var,	num,	mod) \
+  \
+  _(ADDVV,	dst,	var,	var,	add) \
+  _(SUBVV,	dst,	var,	var,	sub) \
+  _(MULVV,	dst,	var,	var,	mul) \
+  _(DIVVV,	dst,	var,	var,	div) \
+  _(MODVV,	dst,	var,	var,	mod) \
+  \
+  _(POW,	dst,	var,	var,	pow) \
+  _(CAT,	dst,	rbase,	rbase,	concat) \
+  \
+  /* Constant ops. */ \
+  _(KSTR,	dst,	___,	str,	___) \
+  _(KCDATA,	dst,	___,	cdata,	___) \
+  _(KSHORT,	dst,	___,	lits,	___) \
+  _(KNUM,	dst,	___,	num,	___) \
+  _(KPRI,	dst,	___,	pri,	___) \
+  _(KNIL,	base,	___,	base,	___) \
+  \
+  /* Upvalue and function ops. */ \
+  _(UGET,	dst,	___,	uv,	___) \
+  _(USETV,	uv,	___,	var,	___) \
+  _(USETS,	uv,	___,	str,	___) \
+  _(USETN,	uv,	___,	num,	___) \
+  _(USETP,	uv,	___,	pri,	___) \
+  _(UCLO,	rbase,	___,	jump,	___) \
+  _(FNEW,	dst,	___,	func,	gc) \
+  \
+  /* Table ops. */ \
+  _(TNEW,	dst,	___,	lit,	gc) \
+  _(TDUP,	dst,	___,	tab,	gc) \
+  _(GGET,	dst,	___,	str,	index) \
+  _(GSET,	var,	___,	str,	newindex) \
+  _(TGETV,	dst,	var,	var,	index) \
+  _(TGETS,	dst,	var,	str,	index) \
+  _(TGETB,	dst,	var,	lit,	index) \
+  _(TGETR,	dst,	var,	var,	index) \
+  _(TSETV,	var,	var,	var,	newindex) \
+  _(TSETS,	var,	var,	str,	newindex) \
+  _(TSETB,	var,	var,	lit,	newindex) \
+  _(TSETM,	base,	___,	num,	newindex) \
+  _(TSETR,	var,	var,	var,	newindex) \
+  \
+  /* Calls and vararg handling. T = tail call. */ \
+  _(CALLM,	base,	lit,	lit,	call) \
+  _(CALL,	base,	lit,	lit,	call) \
+  _(CALLMT,	base,	___,	lit,	call) \
+  _(CALLT,	base,	___,	lit,	call) \
+  _(ITERC,	base,	lit,	lit,	call) \
+  _(ITERN,	base,	lit,	lit,	call) \
+  _(VARG,	base,	lit,	lit,	___) \
+  _(ISNEXT,	base,	___,	jump,	___) \
+  \
+  /* Returns. */ \
+  _(RETM,	base,	___,	lit,	___) \
+  _(RET,	rbase,	___,	lit,	___) \
+  _(RET0,	rbase,	___,	lit,	___) \
+  _(RET1,	rbase,	___,	lit,	___) \
+  \
+  /* Loops and branches. I/J = interp/JIT, I/C/L = init/call/loop. */ \
+  _(FORI,	base,	___,	jump,	___) \
+  _(JFORI,	base,	___,	jump,	___) \
+  \
+  _(FORL,	base,	___,	jump,	___) \
+  _(IFORL,	base,	___,	jump,	___) \
+  _(JFORL,	base,	___,	lit,	___) \
+  \
+  _(ITERL,	base,	___,	jump,	___) \
+  _(IITERL,	base,	___,	jump,	___) \
+  _(JITERL,	base,	___,	lit,	___) \
+  \
+  _(LOOP,	rbase,	___,	jump,	___) \
+  _(ILOOP,	rbase,	___,	jump,	___) \
+  _(JLOOP,	rbase,	___,	lit,	___) \
+  \
+  _(JMP,	rbase,	___,	jump,	___) \
+  \
+  /* Function headers. I/J = interp/JIT, F/V/C = fixarg/vararg/C func. */ \
+  _(FUNCF,	rbase,	___,	___,	___) \
+  _(IFUNCF,	rbase,	___,	___,	___) \
+  _(JFUNCF,	rbase,	___,	lit,	___) \
+  _(FUNCV,	rbase,	___,	___,	___) \
+  _(IFUNCV,	rbase,	___,	___,	___) \
+  _(JFUNCV,	rbase,	___,	lit,	___) \
+  _(FUNCC,	rbase,	___,	___,	___) \
+  _(FUNCCW,	rbase,	___,	___,	___)
+
+/* Bytecode opcode numbers. */
+typedef enum {
+#define BCENUM(name, ma, mb, mc, mt)	BC_##name,
+BCDEF(BCENUM)
+#undef BCENUM
+  BC__MAX
+} BCOp;
+
+LJ_STATIC_ASSERT((int)BC_ISEQV+1 == (int)BC_ISNEV);
+LJ_STATIC_ASSERT(((int)BC_ISEQV^1) == (int)BC_ISNEV);
+LJ_STATIC_ASSERT(((int)BC_ISEQS^1) == (int)BC_ISNES);
+LJ_STATIC_ASSERT(((int)BC_ISEQN^1) == (int)BC_ISNEN);
+LJ_STATIC_ASSERT(((int)BC_ISEQP^1) == (int)BC_ISNEP);
+LJ_STATIC_ASSERT(((int)BC_ISLT^1) == (int)BC_ISGE);
+LJ_STATIC_ASSERT(((int)BC_ISLE^1) == (int)BC_ISGT);
+LJ_STATIC_ASSERT(((int)BC_ISLT^3) == (int)BC_ISGT);
+LJ_STATIC_ASSERT((int)BC_IST-(int)BC_ISTC == (int)BC_ISF-(int)BC_ISFC);
+LJ_STATIC_ASSERT((int)BC_CALLT-(int)BC_CALL == (int)BC_CALLMT-(int)BC_CALLM);
+LJ_STATIC_ASSERT((int)BC_CALLMT + 1 == (int)BC_CALLT);
+LJ_STATIC_ASSERT((int)BC_RETM + 1 == (int)BC_RET);
+LJ_STATIC_ASSERT((int)BC_FORL + 1 == (int)BC_IFORL);
+LJ_STATIC_ASSERT((int)BC_FORL + 2 == (int)BC_JFORL);
+LJ_STATIC_ASSERT((int)BC_ITERL + 1 == (int)BC_IITERL);
+LJ_STATIC_ASSERT((int)BC_ITERL + 2 == (int)BC_JITERL);
+LJ_STATIC_ASSERT((int)BC_LOOP + 1 == (int)BC_ILOOP);
+LJ_STATIC_ASSERT((int)BC_LOOP + 2 == (int)BC_JLOOP);
+LJ_STATIC_ASSERT((int)BC_FUNCF + 1 == (int)BC_IFUNCF);
+LJ_STATIC_ASSERT((int)BC_FUNCF + 2 == (int)BC_JFUNCF);
+LJ_STATIC_ASSERT((int)BC_FUNCV + 1 == (int)BC_IFUNCV);
+LJ_STATIC_ASSERT((int)BC_FUNCV + 2 == (int)BC_JFUNCV);
+
+/* This solves a circular dependency problem, change as needed. */
+#define FF_next_N	4
+
+/* Stack slots used by FORI/FORL, relative to operand A. */
+enum {
+  FORL_IDX, FORL_STOP, FORL_STEP, FORL_EXT
+};
+
+/* Bytecode operand modes. ORDER BCMode */
+typedef enum {
+  BCMnone, BCMdst, BCMbase, BCMvar, BCMrbase, BCMuv,  /* Mode A must be <= 7 */
+  BCMlit, BCMlits, BCMpri, BCMnum, BCMstr, BCMtab, BCMfunc, BCMjump, BCMcdata,
+  BCM_max
+} BCMode;
+#define BCM___		BCMnone
+
+#define bcmode_a(op)	((BCMode)(lj_bc_mode[op] & 7))
+#define bcmode_b(op)	((BCMode)((lj_bc_mode[op]>>3) & 15))
+#define bcmode_c(op)	((BCMode)((lj_bc_mode[op]>>7) & 15))
+#define bcmode_d(op)	bcmode_c(op)
+#define bcmode_hasd(op)	((lj_bc_mode[op] & (15<<3)) == (BCMnone<<3))
+#define bcmode_mm(op)	((MMS)(lj_bc_mode[op]>>11))
+
+#define BCMODE(name, ma, mb, mc, mm) \
+  (BCM##ma|(BCM##mb<<3)|(BCM##mc<<7)|(MM_##mm<<11)),
+#define BCMODE_FF	0
+
+static LJ_AINLINE int bc_isret(BCOp op)
+{
+  return (op == BC_RETM || op == BC_RET || op == BC_RET0 || op == BC_RET1);
+}
+
+LJ_DATA const uint16_t lj_bc_mode[];
+LJ_DATA const uint16_t lj_bc_ofs[];
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_bcdump.h b/libs/luajit-cmake/luajit/src/lj_bcdump.h
new file mode 100644
index 0000000..69da16e
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_bcdump.h
@@ -0,0 +1,68 @@
+/*
+** Bytecode dump definitions.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_BCDUMP_H
+#define _LJ_BCDUMP_H
+
+#include "lj_obj.h"
+#include "lj_lex.h"
+
+/* -- Bytecode dump format ------------------------------------------------ */
+
+/*
+** dump   = header proto+ 0U
+** header = ESC 'L' 'J' versionB flagsU [namelenU nameB*]
+** proto  = lengthU pdata
+** pdata  = phead bcinsW* uvdataH* kgc* knum* [debugB*]
+** phead  = flagsB numparamsB framesizeB numuvB numkgcU numknU numbcU
+**          [debuglenU [firstlineU numlineU]]
+** kgc    = kgctypeU { ktab | (loU hiU) | (rloU rhiU iloU ihiU) | strB* }
+** knum   = intU0 | (loU1 hiU)
+** ktab   = narrayU nhashU karray* khash*
+** karray = ktabk
+** khash  = ktabk ktabk
+** ktabk  = ktabtypeU { intU | (loU hiU) | strB* }
+**
+** B = 8 bit, H = 16 bit, W = 32 bit, U = ULEB128 of W, U0/U1 = ULEB128 of W+1
+*/
+
+/* Bytecode dump header. */
+#define BCDUMP_HEAD1		0x1b
+#define BCDUMP_HEAD2		0x4c
+#define BCDUMP_HEAD3		0x4a
+
+/* If you perform *any* kind of private modifications to the bytecode itself
+** or to the dump format, you *must* set BCDUMP_VERSION to 0x80 or higher.
+*/
+#define BCDUMP_VERSION		2
+
+/* Compatibility flags. */
+#define BCDUMP_F_BE		0x01
+#define BCDUMP_F_STRIP		0x02
+#define BCDUMP_F_FFI		0x04
+#define BCDUMP_F_FR2		0x08
+
+#define BCDUMP_F_KNOWN		(BCDUMP_F_FR2*2-1)
+
+/* Type codes for the GC constants of a prototype. Plus length for strings. */
+enum {
+  BCDUMP_KGC_CHILD, BCDUMP_KGC_TAB, BCDUMP_KGC_I64, BCDUMP_KGC_U64,
+  BCDUMP_KGC_COMPLEX, BCDUMP_KGC_STR
+};
+
+/* Type codes for the keys/values of a constant table. */
+enum {
+  BCDUMP_KTAB_NIL, BCDUMP_KTAB_FALSE, BCDUMP_KTAB_TRUE,
+  BCDUMP_KTAB_INT, BCDUMP_KTAB_NUM, BCDUMP_KTAB_STR
+};
+
+/* -- Bytecode reader/writer ---------------------------------------------- */
+
+LJ_FUNC int lj_bcwrite(lua_State *L, GCproto *pt, lua_Writer writer,
+		       void *data, int strip);
+LJ_FUNC GCproto *lj_bcread_proto(LexState *ls);
+LJ_FUNC GCproto *lj_bcread(LexState *ls);
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_bcread.c b/libs/luajit-cmake/luajit/src/lj_bcread.c
new file mode 100644
index 0000000..2ce0570
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_bcread.c
@@ -0,0 +1,453 @@
+/*
+** Bytecode reader.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_bcread_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_bc.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#include "lualib.h"
+#endif
+#include "lj_lex.h"
+#include "lj_bcdump.h"
+#include "lj_state.h"
+#include "lj_strfmt.h"
+
+/* Reuse some lexer fields for our own purposes. */
+#define bcread_flags(ls)	ls->level
+#define bcread_swap(ls) \
+  ((bcread_flags(ls) & BCDUMP_F_BE) != LJ_BE*BCDUMP_F_BE)
+#define bcread_oldtop(L, ls)	restorestack(L, ls->lastline)
+#define bcread_savetop(L, ls, top) \
+  ls->lastline = (BCLine)savestack(L, (top))
+
+/* -- Input buffer handling ----------------------------------------------- */
+
+/* Throw reader error. */
+static LJ_NOINLINE void bcread_error(LexState *ls, ErrMsg em)
+{
+  lua_State *L = ls->L;
+  const char *name = ls->chunkarg;
+  if (*name == BCDUMP_HEAD1) name = "(binary)";
+  else if (*name == '@' || *name == '=') name++;
+  lj_strfmt_pushf(L, "%s: %s", name, err2msg(em));
+  lj_err_throw(L, LUA_ERRSYNTAX);
+}
+
+/* Refill buffer. */
+static LJ_NOINLINE void bcread_fill(LexState *ls, MSize len, int need)
+{
+  lj_assertLS(len != 0, "empty refill");
+  if (len > LJ_MAX_BUF || ls->c < 0)
+    bcread_error(ls, LJ_ERR_BCBAD);
+  do {
+    const char *buf;
+    size_t sz;
+    char *p = ls->sb.b;
+    MSize n = (MSize)(ls->pe - ls->p);
+    if (n) {  /* Copy remainder to buffer. */
+      if (sbuflen(&ls->sb)) {  /* Move down in buffer. */
+	lj_assertLS(ls->pe == ls->sb.w, "bad buffer pointer");
+	if (ls->p != p) memmove(p, ls->p, n);
+      } else {  /* Copy from buffer provided by reader. */
+	p = lj_buf_need(&ls->sb, len);
+	memcpy(p, ls->p, n);
+      }
+      ls->p = p;
+      ls->pe = p + n;
+    }
+    ls->sb.w = p + n;
+    buf = ls->rfunc(ls->L, ls->rdata, &sz);  /* Get more data from reader. */
+    if (buf == NULL || sz == 0) {  /* EOF? */
+      if (need) bcread_error(ls, LJ_ERR_BCBAD);
+      ls->c = -1;  /* Only bad if we get called again. */
+      break;
+    }
+    if (sz >= LJ_MAX_BUF - n) lj_err_mem(ls->L);
+    if (n) {  /* Append to buffer. */
+      n += (MSize)sz;
+      p = lj_buf_need(&ls->sb, n < len ? len : n);
+      memcpy(ls->sb.w, buf, sz);
+      ls->sb.w = p + n;
+      ls->p = p;
+      ls->pe = p + n;
+    } else {  /* Return buffer provided by reader. */
+      ls->p = buf;
+      ls->pe = buf + sz;
+    }
+  } while ((MSize)(ls->pe - ls->p) < len);
+}
+
+/* Need a certain number of bytes. */
+static LJ_AINLINE void bcread_need(LexState *ls, MSize len)
+{
+  if (LJ_UNLIKELY((MSize)(ls->pe - ls->p) < len))
+    bcread_fill(ls, len, 1);
+}
+
+/* Want to read up to a certain number of bytes, but may need less. */
+static LJ_AINLINE void bcread_want(LexState *ls, MSize len)
+{
+  if (LJ_UNLIKELY((MSize)(ls->pe - ls->p) < len))
+    bcread_fill(ls, len, 0);
+}
+
+/* Return memory block from buffer. */
+static LJ_AINLINE uint8_t *bcread_mem(LexState *ls, MSize len)
+{
+  uint8_t *p = (uint8_t *)ls->p;
+  ls->p += len;
+  lj_assertLS(ls->p <= ls->pe, "buffer read overflow");
+  return p;
+}
+
+/* Copy memory block from buffer. */
+static void bcread_block(LexState *ls, void *q, MSize len)
+{
+  memcpy(q, bcread_mem(ls, len), len);
+}
+
+/* Read byte from buffer. */
+static LJ_AINLINE uint32_t bcread_byte(LexState *ls)
+{
+  lj_assertLS(ls->p < ls->pe, "buffer read overflow");
+  return (uint32_t)(uint8_t)*ls->p++;
+}
+
+/* Read ULEB128 value from buffer. */
+static LJ_AINLINE uint32_t bcread_uleb128(LexState *ls)
+{
+  uint32_t v = lj_buf_ruleb128(&ls->p);
+  lj_assertLS(ls->p <= ls->pe, "buffer read overflow");
+  return v;
+}
+
+/* Read top 32 bits of 33 bit ULEB128 value from buffer. */
+static uint32_t bcread_uleb128_33(LexState *ls)
+{
+  const uint8_t *p = (const uint8_t *)ls->p;
+  uint32_t v = (*p++ >> 1);
+  if (LJ_UNLIKELY(v >= 0x40)) {
+    int sh = -1;
+    v &= 0x3f;
+    do {
+     v |= ((*p & 0x7f) << (sh += 7));
+   } while (*p++ >= 0x80);
+  }
+  ls->p = (char *)p;
+  lj_assertLS(ls->p <= ls->pe, "buffer read overflow");
+  return v;
+}
+
+/* -- Bytecode reader ----------------------------------------------------- */
+
+/* Read debug info of a prototype. */
+static void bcread_dbg(LexState *ls, GCproto *pt, MSize sizedbg)
+{
+  void *lineinfo = (void *)proto_lineinfo(pt);
+  bcread_block(ls, lineinfo, sizedbg);
+  /* Swap lineinfo if the endianess differs. */
+  if (bcread_swap(ls) && pt->numline >= 256) {
+    MSize i, n = pt->sizebc-1;
+    if (pt->numline < 65536) {
+      uint16_t *p = (uint16_t *)lineinfo;
+      for (i = 0; i < n; i++) p[i] = (uint16_t)((p[i] >> 8)|(p[i] << 8));
+    } else {
+      uint32_t *p = (uint32_t *)lineinfo;
+      for (i = 0; i < n; i++) p[i] = lj_bswap(p[i]);
+    }
+  }
+}
+
+/* Find pointer to varinfo. */
+static const void *bcread_varinfo(GCproto *pt)
+{
+  const uint8_t *p = proto_uvinfo(pt);
+  MSize n = pt->sizeuv;
+  if (n) while (*p++ || --n) ;
+  return p;
+}
+
+/* Read a single constant key/value of a template table. */
+static void bcread_ktabk(LexState *ls, TValue *o)
+{
+  MSize tp = bcread_uleb128(ls);
+  if (tp >= BCDUMP_KTAB_STR) {
+    MSize len = tp - BCDUMP_KTAB_STR;
+    const char *p = (const char *)bcread_mem(ls, len);
+    setstrV(ls->L, o, lj_str_new(ls->L, p, len));
+  } else if (tp == BCDUMP_KTAB_INT) {
+    setintV(o, (int32_t)bcread_uleb128(ls));
+  } else if (tp == BCDUMP_KTAB_NUM) {
+    o->u32.lo = bcread_uleb128(ls);
+    o->u32.hi = bcread_uleb128(ls);
+  } else {
+    lj_assertLS(tp <= BCDUMP_KTAB_TRUE, "bad constant type %d", tp);
+    setpriV(o, ~tp);
+  }
+}
+
+/* Read a template table. */
+static GCtab *bcread_ktab(LexState *ls)
+{
+  MSize narray = bcread_uleb128(ls);
+  MSize nhash = bcread_uleb128(ls);
+  GCtab *t = lj_tab_new(ls->L, narray, hsize2hbits(nhash));
+  if (narray) {  /* Read array entries. */
+    MSize i;
+    TValue *o = tvref(t->array);
+    for (i = 0; i < narray; i++, o++)
+      bcread_ktabk(ls, o);
+  }
+  if (nhash) {  /* Read hash entries. */
+    MSize i;
+    for (i = 0; i < nhash; i++) {
+      TValue key;
+      bcread_ktabk(ls, &key);
+      lj_assertLS(!tvisnil(&key), "nil key");
+      bcread_ktabk(ls, lj_tab_set(ls->L, t, &key));
+    }
+  }
+  return t;
+}
+
+/* Read GC constants of a prototype. */
+static void bcread_kgc(LexState *ls, GCproto *pt, MSize sizekgc)
+{
+  MSize i;
+  GCRef *kr = mref(pt->k, GCRef) - (ptrdiff_t)sizekgc;
+  for (i = 0; i < sizekgc; i++, kr++) {
+    MSize tp = bcread_uleb128(ls);
+    if (tp >= BCDUMP_KGC_STR) {
+      MSize len = tp - BCDUMP_KGC_STR;
+      const char *p = (const char *)bcread_mem(ls, len);
+      setgcref(*kr, obj2gco(lj_str_new(ls->L, p, len)));
+    } else if (tp == BCDUMP_KGC_TAB) {
+      setgcref(*kr, obj2gco(bcread_ktab(ls)));
+#if LJ_HASFFI
+    } else if (tp != BCDUMP_KGC_CHILD) {
+      CTypeID id = tp == BCDUMP_KGC_COMPLEX ? CTID_COMPLEX_DOUBLE :
+		   tp == BCDUMP_KGC_I64 ? CTID_INT64 : CTID_UINT64;
+      CTSize sz = tp == BCDUMP_KGC_COMPLEX ? 16 : 8;
+      GCcdata *cd = lj_cdata_new_(ls->L, id, sz);
+      TValue *p = (TValue *)cdataptr(cd);
+      setgcref(*kr, obj2gco(cd));
+      p[0].u32.lo = bcread_uleb128(ls);
+      p[0].u32.hi = bcread_uleb128(ls);
+      if (tp == BCDUMP_KGC_COMPLEX) {
+	p[1].u32.lo = bcread_uleb128(ls);
+	p[1].u32.hi = bcread_uleb128(ls);
+      }
+#endif
+    } else {
+      lua_State *L = ls->L;
+      lj_assertLS(tp == BCDUMP_KGC_CHILD, "bad constant type %d", tp);
+      if (L->top <= bcread_oldtop(L, ls))  /* Stack underflow? */
+	bcread_error(ls, LJ_ERR_BCBAD);
+      L->top--;
+      setgcref(*kr, obj2gco(protoV(L->top)));
+    }
+  }
+}
+
+/* Read number constants of a prototype. */
+static void bcread_knum(LexState *ls, GCproto *pt, MSize sizekn)
+{
+  MSize i;
+  TValue *o = mref(pt->k, TValue);
+  for (i = 0; i < sizekn; i++, o++) {
+    int isnum = (ls->p[0] & 1);
+    uint32_t lo = bcread_uleb128_33(ls);
+    if (isnum) {
+      o->u32.lo = lo;
+      o->u32.hi = bcread_uleb128(ls);
+    } else {
+      setintV(o, lo);
+    }
+  }
+}
+
+/* Read bytecode instructions. */
+static void bcread_bytecode(LexState *ls, GCproto *pt, MSize sizebc)
+{
+  BCIns *bc = proto_bc(pt);
+  bc[0] = BCINS_AD((pt->flags & PROTO_VARARG) ? BC_FUNCV : BC_FUNCF,
+		   pt->framesize, 0);
+  bcread_block(ls, bc+1, (sizebc-1)*(MSize)sizeof(BCIns));
+  /* Swap bytecode instructions if the endianess differs. */
+  if (bcread_swap(ls)) {
+    MSize i;
+    for (i = 1; i < sizebc; i++) bc[i] = lj_bswap(bc[i]);
+  }
+}
+
+/* Read upvalue refs. */
+static void bcread_uv(LexState *ls, GCproto *pt, MSize sizeuv)
+{
+  if (sizeuv) {
+    uint16_t *uv = proto_uv(pt);
+    bcread_block(ls, uv, sizeuv*2);
+    /* Swap upvalue refs if the endianess differs. */
+    if (bcread_swap(ls)) {
+      MSize i;
+      for (i = 0; i < sizeuv; i++)
+	uv[i] = (uint16_t)((uv[i] >> 8)|(uv[i] << 8));
+    }
+  }
+}
+
+/* Read a prototype. */
+GCproto *lj_bcread_proto(LexState *ls)
+{
+  GCproto *pt;
+  MSize framesize, numparams, flags, sizeuv, sizekgc, sizekn, sizebc, sizept;
+  MSize ofsk, ofsuv, ofsdbg;
+  MSize sizedbg = 0;
+  BCLine firstline = 0, numline = 0;
+
+  /* Read prototype header. */
+  flags = bcread_byte(ls);
+  numparams = bcread_byte(ls);
+  framesize = bcread_byte(ls);
+  sizeuv = bcread_byte(ls);
+  sizekgc = bcread_uleb128(ls);
+  sizekn = bcread_uleb128(ls);
+  sizebc = bcread_uleb128(ls) + 1;
+  if (!(bcread_flags(ls) & BCDUMP_F_STRIP)) {
+    sizedbg = bcread_uleb128(ls);
+    if (sizedbg) {
+      firstline = bcread_uleb128(ls);
+      numline = bcread_uleb128(ls);
+    }
+  }
+
+  /* Calculate total size of prototype including all colocated arrays. */
+  sizept = (MSize)sizeof(GCproto) +
+	   sizebc*(MSize)sizeof(BCIns) +
+	   sizekgc*(MSize)sizeof(GCRef);
+  sizept = (sizept + (MSize)sizeof(TValue)-1) & ~((MSize)sizeof(TValue)-1);
+  ofsk = sizept; sizept += sizekn*(MSize)sizeof(TValue);
+  ofsuv = sizept; sizept += ((sizeuv+1)&~1)*2;
+  ofsdbg = sizept; sizept += sizedbg;
+
+  /* Allocate prototype object and initialize its fields. */
+  pt = (GCproto *)lj_mem_newgco(ls->L, (MSize)sizept);
+  pt->gct = ~LJ_TPROTO;
+  pt->numparams = (uint8_t)numparams;
+  pt->framesize = (uint8_t)framesize;
+  pt->sizebc = sizebc;
+  setmref(pt->k, (char *)pt + ofsk);
+  setmref(pt->uv, (char *)pt + ofsuv);
+  pt->sizekgc = 0;  /* Set to zero until fully initialized. */
+  pt->sizekn = sizekn;
+  pt->sizept = sizept;
+  pt->sizeuv = (uint8_t)sizeuv;
+  pt->flags = (uint8_t)flags;
+  pt->trace = 0;
+  setgcref(pt->chunkname, obj2gco(ls->chunkname));
+
+  /* Close potentially uninitialized gap between bc and kgc. */
+  *(uint32_t *)((char *)pt + ofsk - sizeof(GCRef)*(sizekgc+1)) = 0;
+
+  /* Read bytecode instructions and upvalue refs. */
+  bcread_bytecode(ls, pt, sizebc);
+  bcread_uv(ls, pt, sizeuv);
+
+  /* Read constants. */
+  bcread_kgc(ls, pt, sizekgc);
+  pt->sizekgc = sizekgc;
+  bcread_knum(ls, pt, sizekn);
+
+  /* Read and initialize debug info. */
+  pt->firstline = firstline;
+  pt->numline = numline;
+  if (sizedbg) {
+    MSize sizeli = (sizebc-1) << (numline < 256 ? 0 : numline < 65536 ? 1 : 2);
+    setmref(pt->lineinfo, (char *)pt + ofsdbg);
+    setmref(pt->uvinfo, (char *)pt + ofsdbg + sizeli);
+    bcread_dbg(ls, pt, sizedbg);
+    setmref(pt->varinfo, bcread_varinfo(pt));
+  } else {
+    setmref(pt->lineinfo, NULL);
+    setmref(pt->uvinfo, NULL);
+    setmref(pt->varinfo, NULL);
+  }
+  return pt;
+}
+
+/* Read and check header of bytecode dump. */
+static int bcread_header(LexState *ls)
+{
+  uint32_t flags;
+  bcread_want(ls, 3+5+5);
+  if (bcread_byte(ls) != BCDUMP_HEAD2 ||
+      bcread_byte(ls) != BCDUMP_HEAD3 ||
+      bcread_byte(ls) != BCDUMP_VERSION) return 0;
+  bcread_flags(ls) = flags = bcread_uleb128(ls);
+  if ((flags & ~(BCDUMP_F_KNOWN)) != 0) return 0;
+  if ((flags & BCDUMP_F_FR2) != LJ_FR2*BCDUMP_F_FR2) return 0;
+  if ((flags & BCDUMP_F_FFI)) {
+#if LJ_HASFFI
+    lua_State *L = ls->L;
+    ctype_loadffi(L);
+#else
+    return 0;
+#endif
+  }
+  if ((flags & BCDUMP_F_STRIP)) {
+    ls->chunkname = lj_str_newz(ls->L, ls->chunkarg);
+  } else {
+    MSize len = bcread_uleb128(ls);
+    bcread_need(ls, len);
+    ls->chunkname = lj_str_new(ls->L, (const char *)bcread_mem(ls, len), len);
+  }
+  return 1;  /* Ok. */
+}
+
+/* Read a bytecode dump. */
+GCproto *lj_bcread(LexState *ls)
+{
+  lua_State *L = ls->L;
+  lj_assertLS(ls->c == BCDUMP_HEAD1, "bad bytecode header");
+  bcread_savetop(L, ls, L->top);
+  lj_buf_reset(&ls->sb);
+  /* Check for a valid bytecode dump header. */
+  if (!bcread_header(ls))
+    bcread_error(ls, LJ_ERR_BCFMT);
+  for (;;) {  /* Process all prototypes in the bytecode dump. */
+    GCproto *pt;
+    MSize len;
+    const char *startp;
+    /* Read length. */
+    if (ls->p < ls->pe && ls->p[0] == 0) {  /* Shortcut EOF. */
+      ls->p++;
+      break;
+    }
+    bcread_want(ls, 5);
+    len = bcread_uleb128(ls);
+    if (!len) break;  /* EOF */
+    bcread_need(ls, len);
+    startp = ls->p;
+    pt = lj_bcread_proto(ls);
+    if (ls->p != startp + len)
+      bcread_error(ls, LJ_ERR_BCBAD);
+    setprotoV(L, L->top, pt);
+    incr_top(L);
+  }
+  if ((ls->pe != ls->p && !ls->endmark) || L->top-1 != bcread_oldtop(L, ls))
+    bcread_error(ls, LJ_ERR_BCBAD);
+  /* Pop off last prototype. */
+  L->top--;
+  return protoV(L->top);
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_bcwrite.c b/libs/luajit-cmake/luajit/src/lj_bcwrite.c
new file mode 100644
index 0000000..2c70ff4
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_bcwrite.c
@@ -0,0 +1,372 @@
+/*
+** Bytecode writer.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_bcwrite_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_buf.h"
+#include "lj_bc.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#endif
+#if LJ_HASJIT
+#include "lj_dispatch.h"
+#include "lj_jit.h"
+#endif
+#include "lj_strfmt.h"
+#include "lj_bcdump.h"
+#include "lj_vm.h"
+
+/* Context for bytecode writer. */
+typedef struct BCWriteCtx {
+  SBuf sb;			/* Output buffer. */
+  GCproto *pt;			/* Root prototype. */
+  lua_Writer wfunc;		/* Writer callback. */
+  void *wdata;			/* Writer callback data. */
+  int strip;			/* Strip debug info. */
+  int status;			/* Status from writer callback. */
+#ifdef LUA_USE_ASSERT
+  global_State *g;
+#endif
+} BCWriteCtx;
+
+#ifdef LUA_USE_ASSERT
+#define lj_assertBCW(c, ...)	lj_assertG_(ctx->g, (c), __VA_ARGS__)
+#else
+#define lj_assertBCW(c, ...)	((void)ctx)
+#endif
+
+/* -- Bytecode writer ----------------------------------------------------- */
+
+/* Write a single constant key/value of a template table. */
+static void bcwrite_ktabk(BCWriteCtx *ctx, cTValue *o, int narrow)
+{
+  char *p = lj_buf_more(&ctx->sb, 1+10);
+  if (tvisstr(o)) {
+    const GCstr *str = strV(o);
+    MSize len = str->len;
+    p = lj_buf_more(&ctx->sb, 5+len);
+    p = lj_strfmt_wuleb128(p, BCDUMP_KTAB_STR+len);
+    p = lj_buf_wmem(p, strdata(str), len);
+  } else if (tvisint(o)) {
+    *p++ = BCDUMP_KTAB_INT;
+    p = lj_strfmt_wuleb128(p, intV(o));
+  } else if (tvisnum(o)) {
+    if (!LJ_DUALNUM && narrow) {  /* Narrow number constants to integers. */
+      lua_Number num = numV(o);
+      int32_t k = lj_num2int(num);
+      if (num == (lua_Number)k) {  /* -0 is never a constant. */
+	*p++ = BCDUMP_KTAB_INT;
+	p = lj_strfmt_wuleb128(p, k);
+	ctx->sb.w = p;
+	return;
+      }
+    }
+    *p++ = BCDUMP_KTAB_NUM;
+    p = lj_strfmt_wuleb128(p, o->u32.lo);
+    p = lj_strfmt_wuleb128(p, o->u32.hi);
+  } else {
+    lj_assertBCW(tvispri(o), "unhandled type %d", itype(o));
+    *p++ = BCDUMP_KTAB_NIL+~itype(o);
+  }
+  ctx->sb.w = p;
+}
+
+/* Write a template table. */
+static void bcwrite_ktab(BCWriteCtx *ctx, char *p, const GCtab *t)
+{
+  MSize narray = 0, nhash = 0;
+  if (t->asize > 0) {  /* Determine max. length of array part. */
+    ptrdiff_t i;
+    TValue *array = tvref(t->array);
+    for (i = (ptrdiff_t)t->asize-1; i >= 0; i--)
+      if (!tvisnil(&array[i]))
+	break;
+    narray = (MSize)(i+1);
+  }
+  if (t->hmask > 0) {  /* Count number of used hash slots. */
+    MSize i, hmask = t->hmask;
+    Node *node = noderef(t->node);
+    for (i = 0; i <= hmask; i++)
+      nhash += !tvisnil(&node[i].val);
+  }
+  /* Write number of array slots and hash slots. */
+  p = lj_strfmt_wuleb128(p, narray);
+  p = lj_strfmt_wuleb128(p, nhash);
+  ctx->sb.w = p;
+  if (narray) {  /* Write array entries (may contain nil). */
+    MSize i;
+    TValue *o = tvref(t->array);
+    for (i = 0; i < narray; i++, o++)
+      bcwrite_ktabk(ctx, o, 1);
+  }
+  if (nhash) {  /* Write hash entries. */
+    MSize i = nhash;
+    Node *node = noderef(t->node) + t->hmask;
+    for (;; node--)
+      if (!tvisnil(&node->val)) {
+	bcwrite_ktabk(ctx, &node->key, 0);
+	bcwrite_ktabk(ctx, &node->val, 1);
+	if (--i == 0) break;
+      }
+  }
+}
+
+/* Write GC constants of a prototype. */
+static void bcwrite_kgc(BCWriteCtx *ctx, GCproto *pt)
+{
+  MSize i, sizekgc = pt->sizekgc;
+  GCRef *kr = mref(pt->k, GCRef) - (ptrdiff_t)sizekgc;
+  for (i = 0; i < sizekgc; i++, kr++) {
+    GCobj *o = gcref(*kr);
+    MSize tp, need = 1;
+    char *p;
+    /* Determine constant type and needed size. */
+    if (o->gch.gct == ~LJ_TSTR) {
+      tp = BCDUMP_KGC_STR + gco2str(o)->len;
+      need = 5+gco2str(o)->len;
+    } else if (o->gch.gct == ~LJ_TPROTO) {
+      lj_assertBCW((pt->flags & PROTO_CHILD), "prototype has unexpected child");
+      tp = BCDUMP_KGC_CHILD;
+#if LJ_HASFFI
+    } else if (o->gch.gct == ~LJ_TCDATA) {
+      CTypeID id = gco2cd(o)->ctypeid;
+      need = 1+4*5;
+      if (id == CTID_INT64) {
+	tp = BCDUMP_KGC_I64;
+      } else if (id == CTID_UINT64) {
+	tp = BCDUMP_KGC_U64;
+      } else {
+	lj_assertBCW(id == CTID_COMPLEX_DOUBLE,
+		     "bad cdata constant CTID %d", id);
+	tp = BCDUMP_KGC_COMPLEX;
+      }
+#endif
+    } else {
+      lj_assertBCW(o->gch.gct == ~LJ_TTAB,
+		   "bad constant GC type %d", o->gch.gct);
+      tp = BCDUMP_KGC_TAB;
+      need = 1+2*5;
+    }
+    /* Write constant type. */
+    p = lj_buf_more(&ctx->sb, need);
+    p = lj_strfmt_wuleb128(p, tp);
+    /* Write constant data (if any). */
+    if (tp >= BCDUMP_KGC_STR) {
+      p = lj_buf_wmem(p, strdata(gco2str(o)), gco2str(o)->len);
+    } else if (tp == BCDUMP_KGC_TAB) {
+      bcwrite_ktab(ctx, p, gco2tab(o));
+      continue;
+#if LJ_HASFFI
+    } else if (tp != BCDUMP_KGC_CHILD) {
+      cTValue *q = (TValue *)cdataptr(gco2cd(o));
+      p = lj_strfmt_wuleb128(p, q[0].u32.lo);
+      p = lj_strfmt_wuleb128(p, q[0].u32.hi);
+      if (tp == BCDUMP_KGC_COMPLEX) {
+	p = lj_strfmt_wuleb128(p, q[1].u32.lo);
+	p = lj_strfmt_wuleb128(p, q[1].u32.hi);
+      }
+#endif
+    }
+    ctx->sb.w = p;
+  }
+}
+
+/* Write number constants of a prototype. */
+static void bcwrite_knum(BCWriteCtx *ctx, GCproto *pt)
+{
+  MSize i, sizekn = pt->sizekn;
+  cTValue *o = mref(pt->k, TValue);
+  char *p = lj_buf_more(&ctx->sb, 10*sizekn);
+  for (i = 0; i < sizekn; i++, o++) {
+    int32_t k;
+    if (tvisint(o)) {
+      k = intV(o);
+      goto save_int;
+    } else {
+      /* Write a 33 bit ULEB128 for the int (lsb=0) or loword (lsb=1). */
+      if (!LJ_DUALNUM) {  /* Narrow number constants to integers. */
+	lua_Number num = numV(o);
+	k = lj_num2int(num);
+	if (num == (lua_Number)k) {  /* -0 is never a constant. */
+	save_int:
+	  p = lj_strfmt_wuleb128(p, 2*(uint32_t)k | ((uint32_t)k&0x80000000u));
+	  if (k < 0)
+	    p[-1] = (p[-1] & 7) | ((k>>27) & 0x18);
+	  continue;
+	}
+      }
+      p = lj_strfmt_wuleb128(p, 1+(2*o->u32.lo | (o->u32.lo & 0x80000000u)));
+      if (o->u32.lo >= 0x80000000u)
+	p[-1] = (p[-1] & 7) | ((o->u32.lo>>27) & 0x18);
+      p = lj_strfmt_wuleb128(p, o->u32.hi);
+    }
+  }
+  ctx->sb.w = p;
+}
+
+/* Write bytecode instructions. */
+static char *bcwrite_bytecode(BCWriteCtx *ctx, char *p, GCproto *pt)
+{
+  MSize nbc = pt->sizebc-1;  /* Omit the [JI]FUNC* header. */
+#if LJ_HASJIT
+  uint8_t *q = (uint8_t *)p;
+#endif
+  p = lj_buf_wmem(p, proto_bc(pt)+1, nbc*(MSize)sizeof(BCIns));
+  UNUSED(ctx);
+#if LJ_HASJIT
+  /* Unpatch modified bytecode containing ILOOP/JLOOP etc. */
+  if ((pt->flags & PROTO_ILOOP) || pt->trace) {
+    jit_State *J = L2J(sbufL(&ctx->sb));
+    MSize i;
+    for (i = 0; i < nbc; i++, q += sizeof(BCIns)) {
+      BCOp op = (BCOp)q[LJ_ENDIAN_SELECT(0, 3)];
+      if (op == BC_IFORL || op == BC_IITERL || op == BC_ILOOP ||
+	  op == BC_JFORI) {
+	q[LJ_ENDIAN_SELECT(0, 3)] = (uint8_t)(op-BC_IFORL+BC_FORL);
+      } else if (op == BC_JFORL || op == BC_JITERL || op == BC_JLOOP) {
+	BCReg rd = q[LJ_ENDIAN_SELECT(2, 1)] + (q[LJ_ENDIAN_SELECT(3, 0)] << 8);
+	memcpy(q, &traceref(J, rd)->startins, 4);
+      }
+    }
+  }
+#endif
+  return p;
+}
+
+/* Write prototype. */
+static void bcwrite_proto(BCWriteCtx *ctx, GCproto *pt)
+{
+  MSize sizedbg = 0;
+  char *p;
+
+  /* Recursively write children of prototype. */
+  if ((pt->flags & PROTO_CHILD)) {
+    ptrdiff_t i, n = pt->sizekgc;
+    GCRef *kr = mref(pt->k, GCRef) - 1;
+    for (i = 0; i < n; i++, kr--) {
+      GCobj *o = gcref(*kr);
+      if (o->gch.gct == ~LJ_TPROTO)
+	bcwrite_proto(ctx, gco2pt(o));
+    }
+  }
+
+  /* Start writing the prototype info to a buffer. */
+  p = lj_buf_need(&ctx->sb,
+		  5+4+6*5+(pt->sizebc-1)*(MSize)sizeof(BCIns)+pt->sizeuv*2);
+  p += 5;  /* Leave room for final size. */
+
+  /* Write prototype header. */
+  *p++ = (pt->flags & (PROTO_CHILD|PROTO_VARARG|PROTO_FFI));
+  *p++ = pt->numparams;
+  *p++ = pt->framesize;
+  *p++ = pt->sizeuv;
+  p = lj_strfmt_wuleb128(p, pt->sizekgc);
+  p = lj_strfmt_wuleb128(p, pt->sizekn);
+  p = lj_strfmt_wuleb128(p, pt->sizebc-1);
+  if (!ctx->strip) {
+    if (proto_lineinfo(pt))
+      sizedbg = pt->sizept - (MSize)((char *)proto_lineinfo(pt) - (char *)pt);
+    p = lj_strfmt_wuleb128(p, sizedbg);
+    if (sizedbg) {
+      p = lj_strfmt_wuleb128(p, pt->firstline);
+      p = lj_strfmt_wuleb128(p, pt->numline);
+    }
+  }
+
+  /* Write bytecode instructions and upvalue refs. */
+  p = bcwrite_bytecode(ctx, p, pt);
+  p = lj_buf_wmem(p, proto_uv(pt), pt->sizeuv*2);
+  ctx->sb.w = p;
+
+  /* Write constants. */
+  bcwrite_kgc(ctx, pt);
+  bcwrite_knum(ctx, pt);
+
+  /* Write debug info, if not stripped. */
+  if (sizedbg) {
+    p = lj_buf_more(&ctx->sb, sizedbg);
+    p = lj_buf_wmem(p, proto_lineinfo(pt), sizedbg);
+    ctx->sb.w = p;
+  }
+
+  /* Pass buffer to writer function. */
+  if (ctx->status == 0) {
+    MSize n = sbuflen(&ctx->sb) - 5;
+    MSize nn = (lj_fls(n)+8)*9 >> 6;
+    char *q = ctx->sb.b + (5 - nn);
+    p = lj_strfmt_wuleb128(q, n);  /* Fill in final size. */
+    lj_assertBCW(p == ctx->sb.b + 5, "bad ULEB128 write");
+    ctx->status = ctx->wfunc(sbufL(&ctx->sb), q, nn+n, ctx->wdata);
+  }
+}
+
+/* Write header of bytecode dump. */
+static void bcwrite_header(BCWriteCtx *ctx)
+{
+  GCstr *chunkname = proto_chunkname(ctx->pt);
+  const char *name = strdata(chunkname);
+  MSize len = chunkname->len;
+  char *p = lj_buf_need(&ctx->sb, 5+5+len);
+  *p++ = BCDUMP_HEAD1;
+  *p++ = BCDUMP_HEAD2;
+  *p++ = BCDUMP_HEAD3;
+  *p++ = BCDUMP_VERSION;
+  *p++ = (ctx->strip ? BCDUMP_F_STRIP : 0) +
+	 LJ_BE*BCDUMP_F_BE +
+	 ((ctx->pt->flags & PROTO_FFI) ? BCDUMP_F_FFI : 0) +
+	 LJ_FR2*BCDUMP_F_FR2;
+  if (!ctx->strip) {
+    p = lj_strfmt_wuleb128(p, len);
+    p = lj_buf_wmem(p, name, len);
+  }
+  ctx->status = ctx->wfunc(sbufL(&ctx->sb), ctx->sb.b,
+			   (MSize)(p - ctx->sb.b), ctx->wdata);
+}
+
+/* Write footer of bytecode dump. */
+static void bcwrite_footer(BCWriteCtx *ctx)
+{
+  if (ctx->status == 0) {
+    uint8_t zero = 0;
+    ctx->status = ctx->wfunc(sbufL(&ctx->sb), &zero, 1, ctx->wdata);
+  }
+}
+
+/* Protected callback for bytecode writer. */
+static TValue *cpwriter(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  BCWriteCtx *ctx = (BCWriteCtx *)ud;
+  UNUSED(L); UNUSED(dummy);
+  lj_buf_need(&ctx->sb, 1024);  /* Avoids resize for most prototypes. */
+  bcwrite_header(ctx);
+  bcwrite_proto(ctx, ctx->pt);
+  bcwrite_footer(ctx);
+  return NULL;
+}
+
+/* Write bytecode for a prototype. */
+int lj_bcwrite(lua_State *L, GCproto *pt, lua_Writer writer, void *data,
+	      int strip)
+{
+  BCWriteCtx ctx;
+  int status;
+  ctx.pt = pt;
+  ctx.wfunc = writer;
+  ctx.wdata = data;
+  ctx.strip = strip;
+  ctx.status = 0;
+#ifdef LUA_USE_ASSERT
+  ctx.g = G(L);
+#endif
+  lj_buf_init(L, &ctx.sb);
+  status = lj_vm_cpcall(L, NULL, &ctx, cpwriter);
+  if (status == 0) status = ctx.status;
+  lj_buf_free(G(sbufL(&ctx.sb)), &ctx.sb);
+  return status;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_buf.c b/libs/luajit-cmake/luajit/src/lj_buf.c
new file mode 100644
index 0000000..cf268af
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_buf.c
@@ -0,0 +1,305 @@
+/*
+** Buffer handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_buf_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_strfmt.h"
+
+/* -- Buffer management --------------------------------------------------- */
+
+static void buf_grow(SBuf *sb, MSize sz)
+{
+  MSize osz = sbufsz(sb), len = sbuflen(sb), nsz = osz;
+  char *b;
+  GCSize flag;
+  if (nsz < LJ_MIN_SBUF) nsz = LJ_MIN_SBUF;
+  while (nsz < sz) nsz += nsz;
+  flag = sbufflag(sb);
+  if ((flag & SBUF_FLAG_COW)) {  /* Copy-on-write semantics. */
+    lj_assertG_(G(sbufL(sb)), sb->w == sb->e, "bad SBuf COW");
+    b = (char *)lj_mem_new(sbufL(sb), nsz);
+    setsbufflag(sb, flag & ~(GCSize)SBUF_FLAG_COW);
+    setgcrefnull(sbufX(sb)->cowref);
+    memcpy(b, sb->b, osz);
+  } else {
+    b = (char *)lj_mem_realloc(sbufL(sb), sb->b, osz, nsz);
+  }
+  if ((flag & SBUF_FLAG_EXT)) {
+    sbufX(sb)->r = sbufX(sb)->r - sb->b + b;  /* Adjust read pointer, too. */
+  }
+  /* Adjust buffer pointers. */
+  sb->b = b;
+  sb->w = b + len;
+  sb->e = b + nsz;
+  if ((flag & SBUF_FLAG_BORROW)) {  /* Adjust borrowed buffer pointers. */
+    SBuf *bsb = mref(sbufX(sb)->bsb, SBuf);
+    bsb->b = b;
+    bsb->w = b + len;
+    bsb->e = b + nsz;
+  }
+}
+
+LJ_NOINLINE char *LJ_FASTCALL lj_buf_need2(SBuf *sb, MSize sz)
+{
+  lj_assertG_(G(sbufL(sb)), sz > sbufsz(sb), "SBuf overflow");
+  if (LJ_UNLIKELY(sz > LJ_MAX_BUF))
+    lj_err_mem(sbufL(sb));
+  buf_grow(sb, sz);
+  return sb->b;
+}
+
+LJ_NOINLINE char *LJ_FASTCALL lj_buf_more2(SBuf *sb, MSize sz)
+{
+  if (sbufisext(sb)) {
+    SBufExt *sbx = (SBufExt *)sb;
+    MSize len = sbufxlen(sbx);
+    if (LJ_UNLIKELY(sz > LJ_MAX_BUF || len + sz > LJ_MAX_BUF))
+      lj_err_mem(sbufL(sbx));
+    if (len + sz > sbufsz(sbx)) {  /* Must grow. */
+      buf_grow((SBuf *)sbx, len + sz);
+    } else if (sbufiscow(sb) || sbufxslack(sbx) < (sbufsz(sbx) >> 3)) {
+      /* Also grow to avoid excessive compactions, if slack < size/8. */
+      buf_grow((SBuf *)sbx, sbuflen(sbx) + sz);  /* Not sbufxlen! */
+      return sbx->w;
+    }
+    if (sbx->r != sbx->b) {  /* Compact by moving down. */
+      memmove(sbx->b, sbx->r, len);
+      sbx->r = sbx->b;
+      sbx->w = sbx->b + len;
+      lj_assertG_(G(sbufL(sbx)), len + sz <= sbufsz(sbx), "bad SBuf compact");
+    }
+  } else {
+    MSize len = sbuflen(sb);
+    lj_assertG_(G(sbufL(sb)), sz > sbufleft(sb), "SBuf overflow");
+    if (LJ_UNLIKELY(sz > LJ_MAX_BUF || len + sz > LJ_MAX_BUF))
+      lj_err_mem(sbufL(sb));
+    buf_grow(sb, len + sz);
+  }
+  return sb->w;
+}
+
+void LJ_FASTCALL lj_buf_shrink(lua_State *L, SBuf *sb)
+{
+  char *b = sb->b;
+  MSize osz = (MSize)(sb->e - b);
+  if (osz > 2*LJ_MIN_SBUF) {
+    MSize n = (MSize)(sb->w - b);
+    b = lj_mem_realloc(L, b, osz, (osz >> 1));
+    sb->b = b;
+    sb->w = b + n;
+    sb->e = b + (osz >> 1);
+  }
+  lj_assertG_(G(sbufL(sb)), !sbufisext(sb), "YAGNI shrink SBufExt");
+}
+
+char * LJ_FASTCALL lj_buf_tmp(lua_State *L, MSize sz)
+{
+  SBuf *sb = &G(L)->tmpbuf;
+  setsbufL(sb, L);
+  return lj_buf_need(sb, sz);
+}
+
+#if LJ_HASBUFFER && LJ_HASJIT
+void lj_bufx_set(SBufExt *sbx, const char *p, MSize len, GCobj *ref)
+{
+  lua_State *L = sbufL(sbx);
+  lj_bufx_free(L, sbx);
+  lj_bufx_set_cow(L, sbx, p, len);
+  setgcref(sbx->cowref, ref);
+  lj_gc_objbarrier(L, (GCudata *)sbx - 1, ref);
+}
+
+#if LJ_HASFFI
+MSize LJ_FASTCALL lj_bufx_more(SBufExt *sbx, MSize sz)
+{
+  lj_buf_more((SBuf *)sbx, sz);
+  return sbufleft(sbx);
+}
+#endif
+#endif
+
+/* -- Low-level buffer put operations ------------------------------------- */
+
+SBuf *lj_buf_putmem(SBuf *sb, const void *q, MSize len)
+{
+  char *w = lj_buf_more(sb, len);
+  w = lj_buf_wmem(w, q, len);
+  sb->w = w;
+  return sb;
+}
+
+#if LJ_HASJIT || LJ_HASFFI
+static LJ_NOINLINE SBuf * LJ_FASTCALL lj_buf_putchar2(SBuf *sb, int c)
+{
+  char *w = lj_buf_more2(sb, 1);
+  *w++ = (char)c;
+  sb->w = w;
+  return sb;
+}
+
+SBuf * LJ_FASTCALL lj_buf_putchar(SBuf *sb, int c)
+{
+  char *w = sb->w;
+  if (LJ_LIKELY(w < sb->e)) {
+    *w++ = (char)c;
+    sb->w = w;
+    return sb;
+  }
+  return lj_buf_putchar2(sb, c);
+}
+#endif
+
+SBuf * LJ_FASTCALL lj_buf_putstr(SBuf *sb, GCstr *s)
+{
+  MSize len = s->len;
+  char *w = lj_buf_more(sb, len);
+  w = lj_buf_wmem(w, strdata(s), len);
+  sb->w = w;
+  return sb;
+}
+
+/* -- High-level buffer put operations ------------------------------------ */
+
+SBuf * LJ_FASTCALL lj_buf_putstr_reverse(SBuf *sb, GCstr *s)
+{
+  MSize len = s->len;
+  char *w = lj_buf_more(sb, len), *e = w+len;
+  const char *q = strdata(s)+len-1;
+  while (w < e)
+    *w++ = *q--;
+  sb->w = w;
+  return sb;
+}
+
+SBuf * LJ_FASTCALL lj_buf_putstr_lower(SBuf *sb, GCstr *s)
+{
+  MSize len = s->len;
+  char *w = lj_buf_more(sb, len), *e = w+len;
+  const char *q = strdata(s);
+  for (; w < e; w++, q++) {
+    uint32_t c = *(unsigned char *)q;
+#if LJ_TARGET_PPC
+    *w = c + ((c >= 'A' && c <= 'Z') << 5);
+#else
+    if (c >= 'A' && c <= 'Z') c += 0x20;
+    *w = c;
+#endif
+  }
+  sb->w = w;
+  return sb;
+}
+
+SBuf * LJ_FASTCALL lj_buf_putstr_upper(SBuf *sb, GCstr *s)
+{
+  MSize len = s->len;
+  char *w = lj_buf_more(sb, len), *e = w+len;
+  const char *q = strdata(s);
+  for (; w < e; w++, q++) {
+    uint32_t c = *(unsigned char *)q;
+#if LJ_TARGET_PPC
+    *w = c - ((c >= 'a' && c <= 'z') << 5);
+#else
+    if (c >= 'a' && c <= 'z') c -= 0x20;
+    *w = c;
+#endif
+  }
+  sb->w = w;
+  return sb;
+}
+
+SBuf *lj_buf_putstr_rep(SBuf *sb, GCstr *s, int32_t rep)
+{
+  MSize len = s->len;
+  if (rep > 0 && len) {
+    uint64_t tlen = (uint64_t)rep * len;
+    char *w;
+    if (LJ_UNLIKELY(tlen > LJ_MAX_STR))
+      lj_err_mem(sbufL(sb));
+    w = lj_buf_more(sb, (MSize)tlen);
+    if (len == 1) {  /* Optimize a common case. */
+      uint32_t c = strdata(s)[0];
+      do { *w++ = c; } while (--rep > 0);
+    } else {
+      const char *e = strdata(s) + len;
+      do {
+	const char *q = strdata(s);
+	do { *w++ = *q++; } while (q < e);
+      } while (--rep > 0);
+    }
+    sb->w = w;
+  }
+  return sb;
+}
+
+SBuf *lj_buf_puttab(SBuf *sb, GCtab *t, GCstr *sep, int32_t i, int32_t e)
+{
+  MSize seplen = sep ? sep->len : 0;
+  if (i <= e) {
+    for (;;) {
+      cTValue *o = lj_tab_getint(t, i);
+      char *w;
+      if (!o) {
+      badtype:  /* Error: bad element type. */
+	sb->w = (char *)(intptr_t)i;  /* Store failing index. */
+	return NULL;
+      } else if (tvisstr(o)) {
+	MSize len = strV(o)->len;
+	w = lj_buf_wmem(lj_buf_more(sb, len + seplen), strVdata(o), len);
+      } else if (tvisint(o)) {
+	w = lj_strfmt_wint(lj_buf_more(sb, STRFMT_MAXBUF_INT+seplen), intV(o));
+      } else if (tvisnum(o)) {
+	w = lj_buf_more(lj_strfmt_putfnum(sb, STRFMT_G14, numV(o)), seplen);
+      } else {
+	goto badtype;
+      }
+      if (i++ == e) {
+	sb->w = w;
+	break;
+      }
+      if (seplen) w = lj_buf_wmem(w, strdata(sep), seplen);
+      sb->w = w;
+    }
+  }
+  return sb;
+}
+
+/* -- Miscellaneous buffer operations ------------------------------------- */
+
+GCstr * LJ_FASTCALL lj_buf_tostr(SBuf *sb)
+{
+  return lj_str_new(sbufL(sb), sb->b, sbuflen(sb));
+}
+
+/* Concatenate two strings. */
+GCstr *lj_buf_cat2str(lua_State *L, GCstr *s1, GCstr *s2)
+{
+  MSize len1 = s1->len, len2 = s2->len;
+  char *buf = lj_buf_tmp(L, len1 + len2);
+  memcpy(buf, strdata(s1), len1);
+  memcpy(buf+len1, strdata(s2), len2);
+  return lj_str_new(L, buf, len1 + len2);
+}
+
+/* Read ULEB128 from buffer. */
+uint32_t LJ_FASTCALL lj_buf_ruleb128(const char **pp)
+{
+  const uint8_t *w = (const uint8_t *)*pp;
+  uint32_t v = *w++;
+  if (LJ_UNLIKELY(v >= 0x80)) {
+    int sh = 0;
+    v &= 0x7f;
+    do { v |= ((*w & 0x7f) << (sh += 7)); } while (*w++ >= 0x80);
+  }
+  *pp = (const char *)w;
+  return v;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_buf.h b/libs/luajit-cmake/luajit/src/lj_buf.h
new file mode 100644
index 0000000..7611420
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_buf.h
@@ -0,0 +1,198 @@
+/*
+** Buffer handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_BUF_H
+#define _LJ_BUF_H
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_str.h"
+
+/* Resizable string buffers. */
+
+/* The SBuf struct definition is in lj_obj.h:
+**   char *w;	Write pointer.
+**   char *e;	End pointer.
+**   char *b;	Base pointer.
+**   MRef L;	lua_State, used for buffer resizing. Extension bits in 3 LSB.
+*/
+
+/* Extended string buffer. */
+typedef struct SBufExt {
+  SBufHeader;
+  union {
+    GCRef cowref;	/* Copy-on-write object reference. */
+    MRef bsb;		/* Borrowed string buffer. */
+  };
+  char *r;		/* Read pointer. */
+  GCRef dict_str;	/* Serialization string dictionary table. */
+  GCRef dict_mt;	/* Serialization metatable dictionary table. */
+  int depth;		/* Remaining recursion depth. */
+} SBufExt;
+
+#define sbufsz(sb)		((MSize)((sb)->e - (sb)->b))
+#define sbuflen(sb)		((MSize)((sb)->w - (sb)->b))
+#define sbufleft(sb)		((MSize)((sb)->e - (sb)->w))
+#define sbufxlen(sbx)		((MSize)((sbx)->w - (sbx)->r))
+#define sbufxslack(sbx)		((MSize)((sbx)->r - (sbx)->b))
+
+#define SBUF_MASK_FLAG		(7)
+#define SBUF_MASK_L		(~(GCSize)SBUF_MASK_FLAG)
+#define SBUF_FLAG_EXT		1	/* Extended string buffer. */
+#define SBUF_FLAG_COW		2	/* Copy-on-write buffer. */
+#define SBUF_FLAG_BORROW	4	/* Borrowed string buffer. */
+
+#define sbufL(sb) \
+  ((lua_State *)(void *)(uintptr_t)(mrefu((sb)->L) & SBUF_MASK_L))
+#define setsbufL(sb, l)		(setmref((sb)->L, (l)))
+#define setsbufXL(sb, l, flag) \
+  (setmrefu((sb)->L, (GCSize)(uintptr_t)(void *)(l) + (flag)))
+#define setsbufXL_(sb, l) \
+  (setmrefu((sb)->L, (GCSize)(uintptr_t)(void *)(l) | (mrefu((sb)->L) & SBUF_MASK_FLAG)))
+
+#define sbufflag(sb)		(mrefu((sb)->L))
+#define sbufisext(sb)		(sbufflag((sb)) & SBUF_FLAG_EXT)
+#define sbufiscow(sb)		(sbufflag((sb)) & SBUF_FLAG_COW)
+#define sbufisborrow(sb)	(sbufflag((sb)) & SBUF_FLAG_BORROW)
+#define sbufiscoworborrow(sb)	(sbufflag((sb)) & (SBUF_FLAG_COW|SBUF_FLAG_BORROW))
+#define sbufX(sb) \
+  (lj_assertG_(G(sbufL(sb)), sbufisext(sb), "not an SBufExt"), (SBufExt *)(sb))
+#define setsbufflag(sb, flag)	(setmrefu((sb)->L, (flag)))
+
+#define tvisbuf(o) \
+  (LJ_HASBUFFER && tvisudata(o) && udataV(o)->udtype == UDTYPE_BUFFER)
+#define bufV(o)		check_exp(tvisbuf(o), ((SBufExt *)uddata(udataV(o))))
+
+/* Buffer management */
+LJ_FUNC char *LJ_FASTCALL lj_buf_need2(SBuf *sb, MSize sz);
+LJ_FUNC char *LJ_FASTCALL lj_buf_more2(SBuf *sb, MSize sz);
+LJ_FUNC void LJ_FASTCALL lj_buf_shrink(lua_State *L, SBuf *sb);
+LJ_FUNC char * LJ_FASTCALL lj_buf_tmp(lua_State *L, MSize sz);
+
+static LJ_AINLINE void lj_buf_init(lua_State *L, SBuf *sb)
+{
+  setsbufL(sb, L);
+  sb->w = sb->e = sb->b = NULL;
+}
+
+static LJ_AINLINE void lj_buf_reset(SBuf *sb)
+{
+  sb->w = sb->b;
+}
+
+static LJ_AINLINE SBuf *lj_buf_tmp_(lua_State *L)
+{
+  SBuf *sb = &G(L)->tmpbuf;
+  setsbufL(sb, L);
+  lj_buf_reset(sb);
+  return sb;
+}
+
+static LJ_AINLINE void lj_buf_free(global_State *g, SBuf *sb)
+{
+  lj_assertG(!sbufisext(sb), "bad free of SBufExt");
+  lj_mem_free(g, sb->b, sbufsz(sb));
+}
+
+static LJ_AINLINE char *lj_buf_need(SBuf *sb, MSize sz)
+{
+  if (LJ_UNLIKELY(sz > sbufsz(sb)))
+    return lj_buf_need2(sb, sz);
+  return sb->b;
+}
+
+static LJ_AINLINE char *lj_buf_more(SBuf *sb, MSize sz)
+{
+  if (LJ_UNLIKELY(sz > sbufleft(sb)))
+    return lj_buf_more2(sb, sz);
+  return sb->w;
+}
+
+/* Extended buffer management */
+static LJ_AINLINE void lj_bufx_init(lua_State *L, SBufExt *sbx)
+{
+  memset(sbx, 0, sizeof(SBufExt));
+  setsbufXL(sbx, L, SBUF_FLAG_EXT);
+}
+
+static LJ_AINLINE void lj_bufx_set_borrow(lua_State *L, SBufExt *sbx, SBuf *sb)
+{
+  setsbufXL(sbx, L, SBUF_FLAG_EXT | SBUF_FLAG_BORROW);
+  setmref(sbx->bsb, sb);
+  sbx->r = sbx->w = sbx->b = sb->b;
+  sbx->e = sb->e;
+}
+
+static LJ_AINLINE void lj_bufx_set_cow(lua_State *L, SBufExt *sbx,
+				       const char *p, MSize len)
+{
+  setsbufXL(sbx, L, SBUF_FLAG_EXT | SBUF_FLAG_COW);
+  sbx->r = sbx->b = (char *)p;
+  sbx->w = sbx->e = (char *)p + len;
+}
+
+static LJ_AINLINE void lj_bufx_reset(SBufExt *sbx)
+{
+  if (sbufiscow(sbx)) {
+    setmrefu(sbx->L, (mrefu(sbx->L) & ~(GCSize)SBUF_FLAG_COW));
+    setgcrefnull(sbx->cowref);
+    sbx->b = sbx->e = NULL;
+  }
+  sbx->r = sbx->w = sbx->b;
+}
+
+static LJ_AINLINE void lj_bufx_free(lua_State *L, SBufExt *sbx)
+{
+  if (!sbufiscoworborrow(sbx)) lj_mem_free(G(L), sbx->b, sbufsz(sbx));
+  setsbufXL(sbx, L, SBUF_FLAG_EXT);
+  setgcrefnull(sbx->cowref);
+  sbx->r = sbx->w = sbx->b = sbx->e = NULL;
+}
+
+#if LJ_HASBUFFER && LJ_HASJIT
+LJ_FUNC void lj_bufx_set(SBufExt *sbx, const char *p, MSize len, GCobj *o);
+#if LJ_HASFFI
+LJ_FUNC MSize LJ_FASTCALL lj_bufx_more(SBufExt *sbx, MSize sz);
+#endif
+#endif
+
+/* Low-level buffer put operations */
+LJ_FUNC SBuf *lj_buf_putmem(SBuf *sb, const void *q, MSize len);
+#if LJ_HASJIT || LJ_HASFFI
+LJ_FUNC SBuf * LJ_FASTCALL lj_buf_putchar(SBuf *sb, int c);
+#endif
+LJ_FUNC SBuf * LJ_FASTCALL lj_buf_putstr(SBuf *sb, GCstr *s);
+
+static LJ_AINLINE char *lj_buf_wmem(char *p, const void *q, MSize len)
+{
+  return (char *)memcpy(p, q, len) + len;
+}
+
+static LJ_AINLINE void lj_buf_putb(SBuf *sb, int c)
+{
+  char *w = lj_buf_more(sb, 1);
+  *w++ = (char)c;
+  sb->w = w;
+}
+
+/* High-level buffer put operations */
+LJ_FUNCA SBuf * LJ_FASTCALL lj_buf_putstr_reverse(SBuf *sb, GCstr *s);
+LJ_FUNCA SBuf * LJ_FASTCALL lj_buf_putstr_lower(SBuf *sb, GCstr *s);
+LJ_FUNCA SBuf * LJ_FASTCALL lj_buf_putstr_upper(SBuf *sb, GCstr *s);
+LJ_FUNC SBuf *lj_buf_putstr_rep(SBuf *sb, GCstr *s, int32_t rep);
+LJ_FUNC SBuf *lj_buf_puttab(SBuf *sb, GCtab *t, GCstr *sep,
+			    int32_t i, int32_t e);
+
+/* Miscellaneous buffer operations */
+LJ_FUNCA GCstr * LJ_FASTCALL lj_buf_tostr(SBuf *sb);
+LJ_FUNC GCstr *lj_buf_cat2str(lua_State *L, GCstr *s1, GCstr *s2);
+LJ_FUNC uint32_t LJ_FASTCALL lj_buf_ruleb128(const char **pp);
+
+static LJ_AINLINE GCstr *lj_buf_str(lua_State *L, SBuf *sb)
+{
+  return lj_str_new(L, sb->b, sbuflen(sb));
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_carith.c b/libs/luajit-cmake/luajit/src/lj_carith.c
new file mode 100644
index 0000000..1a2a058
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_carith.c
@@ -0,0 +1,432 @@
+/*
+** C data arithmetic.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_tab.h"
+#include "lj_meta.h"
+#include "lj_ir.h"
+#include "lj_ctype.h"
+#include "lj_cconv.h"
+#include "lj_cdata.h"
+#include "lj_carith.h"
+#include "lj_strscan.h"
+
+/* -- C data arithmetic --------------------------------------------------- */
+
+/* Binary operands of an operator converted to ctypes. */
+typedef struct CDArith {
+  uint8_t *p[2];
+  CType *ct[2];
+} CDArith;
+
+/* Check arguments for arithmetic metamethods. */
+static int carith_checkarg(lua_State *L, CTState *cts, CDArith *ca)
+{
+  TValue *o = L->base;
+  int ok = 1;
+  MSize i;
+  if (o+1 >= L->top)
+    lj_err_argt(L, 1, LUA_TCDATA);
+  for (i = 0; i < 2; i++, o++) {
+    if (tviscdata(o)) {
+      GCcdata *cd = cdataV(o);
+      CTypeID id = (CTypeID)cd->ctypeid;
+      CType *ct = ctype_raw(cts, id);
+      uint8_t *p = (uint8_t *)cdataptr(cd);
+      if (ctype_isptr(ct->info)) {
+	p = (uint8_t *)cdata_getptr(p, ct->size);
+	if (ctype_isref(ct->info)) ct = ctype_rawchild(cts, ct);
+      } else if (ctype_isfunc(ct->info)) {
+	p = (uint8_t *)*(void **)p;
+	ct = ctype_get(cts,
+	  lj_ctype_intern(cts, CTINFO(CT_PTR, CTALIGN_PTR|id), CTSIZE_PTR));
+      }
+      if (ctype_isenum(ct->info)) ct = ctype_child(cts, ct);
+      ca->ct[i] = ct;
+      ca->p[i] = p;
+    } else if (tvisint(o)) {
+      ca->ct[i] = ctype_get(cts, CTID_INT32);
+      ca->p[i] = (uint8_t *)&o->i;
+    } else if (tvisnum(o)) {
+      ca->ct[i] = ctype_get(cts, CTID_DOUBLE);
+      ca->p[i] = (uint8_t *)&o->n;
+    } else if (tvisnil(o)) {
+      ca->ct[i] = ctype_get(cts, CTID_P_VOID);
+      ca->p[i] = (uint8_t *)0;
+    } else if (tvisstr(o)) {
+      TValue *o2 = i == 0 ? o+1 : o-1;
+      CType *ct = ctype_raw(cts, cdataV(o2)->ctypeid);
+      ca->ct[i] = NULL;
+      ca->p[i] = (uint8_t *)strVdata(o);
+      ok = 0;
+      if (ctype_isenum(ct->info)) {
+	CTSize ofs;
+	CType *cct = lj_ctype_getfield(cts, ct, strV(o), &ofs);
+	if (cct && ctype_isconstval(cct->info)) {
+	  ca->ct[i] = ctype_child(cts, cct);
+	  ca->p[i] = (uint8_t *)&cct->size;  /* Assumes ct does not grow. */
+	  ok = 1;
+	} else {
+	  ca->ct[1-i] = ct;  /* Use enum to improve error message. */
+	  ca->p[1-i] = NULL;
+	  break;
+	}
+      }
+    } else {
+      ca->ct[i] = NULL;
+      ca->p[i] = (void *)(intptr_t)1;  /* To make it unequal. */
+      ok = 0;
+    }
+  }
+  return ok;
+}
+
+/* Pointer arithmetic. */
+static int carith_ptr(lua_State *L, CTState *cts, CDArith *ca, MMS mm)
+{
+  CType *ctp = ca->ct[0];
+  uint8_t *pp = ca->p[0];
+  ptrdiff_t idx;
+  CTSize sz;
+  CTypeID id;
+  GCcdata *cd;
+  if (ctype_isptr(ctp->info) || ctype_isrefarray(ctp->info)) {
+    if ((mm == MM_sub || mm == MM_eq || mm == MM_lt || mm == MM_le) &&
+	(ctype_isptr(ca->ct[1]->info) || ctype_isrefarray(ca->ct[1]->info))) {
+      uint8_t *pp2 = ca->p[1];
+      if (mm == MM_eq) {  /* Pointer equality. Incompatible pointers are ok. */
+	setboolV(L->top-1, (pp == pp2));
+	return 1;
+      }
+      if (!lj_cconv_compatptr(cts, ctp, ca->ct[1], CCF_IGNQUAL))
+	return 0;
+      if (mm == MM_sub) {  /* Pointer difference. */
+	intptr_t diff;
+	sz = lj_ctype_size(cts, ctype_cid(ctp->info));  /* Element size. */
+	if (sz == 0 || sz == CTSIZE_INVALID)
+	  return 0;
+	diff = ((intptr_t)pp - (intptr_t)pp2) / (int32_t)sz;
+	/* All valid pointer differences on x64 are in (-2^47, +2^47),
+	** which fits into a double without loss of precision.
+	*/
+	setintptrV(L->top-1, (int32_t)diff);
+	return 1;
+      } else if (mm == MM_lt) {  /* Pointer comparison (unsigned). */
+	setboolV(L->top-1, ((uintptr_t)pp < (uintptr_t)pp2));
+	return 1;
+      } else {
+	lj_assertL(mm == MM_le, "bad metamethod %d", mm);
+	setboolV(L->top-1, ((uintptr_t)pp <= (uintptr_t)pp2));
+	return 1;
+      }
+    }
+    if (!((mm == MM_add || mm == MM_sub) && ctype_isnum(ca->ct[1]->info)))
+      return 0;
+    lj_cconv_ct_ct(cts, ctype_get(cts, CTID_INT_PSZ), ca->ct[1],
+		   (uint8_t *)&idx, ca->p[1], 0);
+    if (mm == MM_sub) idx = -idx;
+  } else if (mm == MM_add && ctype_isnum(ctp->info) &&
+      (ctype_isptr(ca->ct[1]->info) || ctype_isrefarray(ca->ct[1]->info))) {
+    /* Swap pointer and index. */
+    ctp = ca->ct[1]; pp = ca->p[1];
+    lj_cconv_ct_ct(cts, ctype_get(cts, CTID_INT_PSZ), ca->ct[0],
+		   (uint8_t *)&idx, ca->p[0], 0);
+  } else {
+    return 0;
+  }
+  sz = lj_ctype_size(cts, ctype_cid(ctp->info));  /* Element size. */
+  if (sz == CTSIZE_INVALID)
+    return 0;
+  pp += idx*(int32_t)sz;  /* Compute pointer + index. */
+  id = lj_ctype_intern(cts, CTINFO(CT_PTR, CTALIGN_PTR|ctype_cid(ctp->info)),
+		       CTSIZE_PTR);
+  cd = lj_cdata_new(cts, id, CTSIZE_PTR);
+  *(uint8_t **)cdataptr(cd) = pp;
+  setcdataV(L, L->top-1, cd);
+  lj_gc_check(L);
+  return 1;
+}
+
+/* 64 bit integer arithmetic. */
+static int carith_int64(lua_State *L, CTState *cts, CDArith *ca, MMS mm)
+{
+  if (ctype_isnum(ca->ct[0]->info) && ca->ct[0]->size <= 8 &&
+      ctype_isnum(ca->ct[1]->info) && ca->ct[1]->size <= 8) {
+    CTypeID id = (((ca->ct[0]->info & CTF_UNSIGNED) && ca->ct[0]->size == 8) ||
+		  ((ca->ct[1]->info & CTF_UNSIGNED) && ca->ct[1]->size == 8)) ?
+		 CTID_UINT64 : CTID_INT64;
+    CType *ct = ctype_get(cts, id);
+    GCcdata *cd;
+    uint64_t u0, u1, *up;
+    lj_cconv_ct_ct(cts, ct, ca->ct[0], (uint8_t *)&u0, ca->p[0], 0);
+    if (mm != MM_unm)
+      lj_cconv_ct_ct(cts, ct, ca->ct[1], (uint8_t *)&u1, ca->p[1], 0);
+    switch (mm) {
+    case MM_eq:
+      setboolV(L->top-1, (u0 == u1));
+      return 1;
+    case MM_lt:
+      setboolV(L->top-1,
+	       id == CTID_INT64 ? ((int64_t)u0 < (int64_t)u1) : (u0 < u1));
+      return 1;
+    case MM_le:
+      setboolV(L->top-1,
+	       id == CTID_INT64 ? ((int64_t)u0 <= (int64_t)u1) : (u0 <= u1));
+      return 1;
+    default: break;
+    }
+    cd = lj_cdata_new(cts, id, 8);
+    up = (uint64_t *)cdataptr(cd);
+    setcdataV(L, L->top-1, cd);
+    switch (mm) {
+    case MM_add: *up = u0 + u1; break;
+    case MM_sub: *up = u0 - u1; break;
+    case MM_mul: *up = u0 * u1; break;
+    case MM_div:
+      if (id == CTID_INT64)
+	*up = (uint64_t)lj_carith_divi64((int64_t)u0, (int64_t)u1);
+      else
+	*up = lj_carith_divu64(u0, u1);
+      break;
+    case MM_mod:
+      if (id == CTID_INT64)
+	*up = (uint64_t)lj_carith_modi64((int64_t)u0, (int64_t)u1);
+      else
+	*up = lj_carith_modu64(u0, u1);
+      break;
+    case MM_pow:
+      if (id == CTID_INT64)
+	*up = (uint64_t)lj_carith_powi64((int64_t)u0, (int64_t)u1);
+      else
+	*up = lj_carith_powu64(u0, u1);
+      break;
+    case MM_unm: *up = (uint64_t)-(int64_t)u0; break;
+    default:
+      lj_assertL(0, "bad metamethod %d", mm);
+      break;
+    }
+    lj_gc_check(L);
+    return 1;
+  }
+  return 0;
+}
+
+/* Handle ctype arithmetic metamethods. */
+static int lj_carith_meta(lua_State *L, CTState *cts, CDArith *ca, MMS mm)
+{
+  cTValue *tv = NULL;
+  if (tviscdata(L->base)) {
+    CTypeID id = cdataV(L->base)->ctypeid;
+    CType *ct = ctype_raw(cts, id);
+    if (ctype_isptr(ct->info)) id = ctype_cid(ct->info);
+    tv = lj_ctype_meta(cts, id, mm);
+  }
+  if (!tv && L->base+1 < L->top && tviscdata(L->base+1)) {
+    CTypeID id = cdataV(L->base+1)->ctypeid;
+    CType *ct = ctype_raw(cts, id);
+    if (ctype_isptr(ct->info)) id = ctype_cid(ct->info);
+    tv = lj_ctype_meta(cts, id, mm);
+  }
+  if (!tv) {
+    const char *repr[2];
+    int i, isenum = -1, isstr = -1;
+    if (mm == MM_eq) {  /* Equality checks never raise an error. */
+      int eq = ca->p[0] == ca->p[1];
+      setboolV(L->top-1, eq);
+      setboolV(&G(L)->tmptv2, eq);  /* Remember for trace recorder. */
+      return 1;
+    }
+    for (i = 0; i < 2; i++) {
+      if (ca->ct[i] && tviscdata(L->base+i)) {
+	if (ctype_isenum(ca->ct[i]->info)) isenum = i;
+	repr[i] = strdata(lj_ctype_repr(L, ctype_typeid(cts, ca->ct[i]), NULL));
+      } else {
+	if (tvisstr(&L->base[i])) isstr = i;
+	repr[i] = lj_typename(&L->base[i]);
+      }
+    }
+    if ((isenum ^ isstr) == 1)
+      lj_err_callerv(L, LJ_ERR_FFI_BADCONV, repr[isstr], repr[isenum]);
+    lj_err_callerv(L, mm == MM_len ? LJ_ERR_FFI_BADLEN :
+		      mm == MM_concat ? LJ_ERR_FFI_BADCONCAT :
+		      mm < MM_add ? LJ_ERR_FFI_BADCOMP : LJ_ERR_FFI_BADARITH,
+		   repr[0], repr[1]);
+  }
+  return lj_meta_tailcall(L, tv);
+}
+
+/* Arithmetic operators for cdata. */
+int lj_carith_op(lua_State *L, MMS mm)
+{
+  CTState *cts = ctype_cts(L);
+  CDArith ca;
+  if (carith_checkarg(L, cts, &ca) && mm != MM_len && mm != MM_concat) {
+    if (carith_int64(L, cts, &ca, mm) || carith_ptr(L, cts, &ca, mm)) {
+      copyTV(L, &G(L)->tmptv2, L->top-1);  /* Remember for trace recorder. */
+      return 1;
+    }
+  }
+  return lj_carith_meta(L, cts, &ca, mm);
+}
+
+/* -- 64 bit bit operations helpers --------------------------------------- */
+
+#if LJ_64
+#define B64DEF(name) \
+  static LJ_AINLINE uint64_t lj_carith_##name(uint64_t x, int32_t sh)
+#else
+/* Not inlined on 32 bit archs, since some of these are quite lengthy. */
+#define B64DEF(name) \
+  uint64_t LJ_NOINLINE lj_carith_##name(uint64_t x, int32_t sh)
+#endif
+
+B64DEF(shl64) { return x << (sh&63); }
+B64DEF(shr64) { return x >> (sh&63); }
+B64DEF(sar64) { return (uint64_t)((int64_t)x >> (sh&63)); }
+B64DEF(rol64) { return lj_rol(x, (sh&63)); }
+B64DEF(ror64) { return lj_ror(x, (sh&63)); }
+
+#undef B64DEF
+
+uint64_t lj_carith_shift64(uint64_t x, int32_t sh, int op)
+{
+  switch (op) {
+  case IR_BSHL-IR_BSHL: x = lj_carith_shl64(x, sh); break;
+  case IR_BSHR-IR_BSHL: x = lj_carith_shr64(x, sh); break;
+  case IR_BSAR-IR_BSHL: x = lj_carith_sar64(x, sh); break;
+  case IR_BROL-IR_BSHL: x = lj_carith_rol64(x, sh); break;
+  case IR_BROR-IR_BSHL: x = lj_carith_ror64(x, sh); break;
+  default:
+    lj_assertX(0, "bad shift op %d", op);
+    break;
+  }
+  return x;
+}
+
+/* Equivalent to lj_lib_checkbit(), but handles cdata. */
+uint64_t lj_carith_check64(lua_State *L, int narg, CTypeID *id)
+{
+  TValue *o = L->base + narg-1;
+  if (o >= L->top) {
+  err:
+    lj_err_argt(L, narg, LUA_TNUMBER);
+  } else if (LJ_LIKELY(tvisnumber(o))) {
+    /* Handled below. */
+  } else if (tviscdata(o)) {
+    CTState *cts = ctype_cts(L);
+    uint8_t *sp = (uint8_t *)cdataptr(cdataV(o));
+    CTypeID sid = cdataV(o)->ctypeid;
+    CType *s = ctype_get(cts, sid);
+    uint64_t x;
+    if (ctype_isref(s->info)) {
+      sp = *(void **)sp;
+      sid = ctype_cid(s->info);
+    }
+    s = ctype_raw(cts, sid);
+    if (ctype_isenum(s->info)) s = ctype_child(cts, s);
+    if ((s->info & (CTMASK_NUM|CTF_BOOL|CTF_FP|CTF_UNSIGNED)) ==
+	CTINFO(CT_NUM, CTF_UNSIGNED) && s->size == 8)
+      *id = CTID_UINT64;  /* Use uint64_t, since it has the highest rank. */
+    else if (!*id)
+      *id = CTID_INT64;  /* Use int64_t, unless already set. */
+    lj_cconv_ct_ct(cts, ctype_get(cts, *id), s,
+		   (uint8_t *)&x, sp, CCF_ARG(narg));
+    return x;
+  } else if (!(tvisstr(o) && lj_strscan_number(strV(o), o))) {
+    goto err;
+  }
+  if (LJ_LIKELY(tvisint(o))) {
+    return (uint32_t)intV(o);
+  } else {
+    int32_t i = lj_num2bit(numV(o));
+    if (LJ_DUALNUM) setintV(o, i);
+    return (uint32_t)i;
+  }
+}
+
+/* -- 64 bit integer arithmetic helpers ----------------------------------- */
+
+#if LJ_32 && LJ_HASJIT
+/* Signed/unsigned 64 bit multiplication. */
+int64_t lj_carith_mul64(int64_t a, int64_t b)
+{
+  return a * b;
+}
+#endif
+
+/* Unsigned 64 bit division. */
+uint64_t lj_carith_divu64(uint64_t a, uint64_t b)
+{
+  if (b == 0) return U64x(80000000,00000000);
+  return a / b;
+}
+
+/* Signed 64 bit division. */
+int64_t lj_carith_divi64(int64_t a, int64_t b)
+{
+  if (b == 0 || (a == (int64_t)U64x(80000000,00000000) && b == -1))
+    return U64x(80000000,00000000);
+  return a / b;
+}
+
+/* Unsigned 64 bit modulo. */
+uint64_t lj_carith_modu64(uint64_t a, uint64_t b)
+{
+  if (b == 0) return U64x(80000000,00000000);
+  return a % b;
+}
+
+/* Signed 64 bit modulo. */
+int64_t lj_carith_modi64(int64_t a, int64_t b)
+{
+  if (b == 0) return U64x(80000000,00000000);
+  if (a == (int64_t)U64x(80000000,00000000) && b == -1) return 0;
+  return a % b;
+}
+
+/* Unsigned 64 bit x^k. */
+uint64_t lj_carith_powu64(uint64_t x, uint64_t k)
+{
+  uint64_t y;
+  if (k == 0)
+    return 1;
+  for (; (k & 1) == 0; k >>= 1) x *= x;
+  y = x;
+  if ((k >>= 1) != 0) {
+    for (;;) {
+      x *= x;
+      if (k == 1) break;
+      if (k & 1) y *= x;
+      k >>= 1;
+    }
+    y *= x;
+  }
+  return y;
+}
+
+/* Signed 64 bit x^k. */
+int64_t lj_carith_powi64(int64_t x, int64_t k)
+{
+  if (k == 0)
+    return 1;
+  if (k < 0) {
+    if (x == 0)
+      return U64x(7fffffff,ffffffff);
+    else if (x == 1)
+      return 1;
+    else if (x == -1)
+      return (k & 1) ? -1 : 1;
+    else
+      return 0;
+  }
+  return (int64_t)lj_carith_powu64((uint64_t)x, (uint64_t)k);
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_carith.h b/libs/luajit-cmake/luajit/src/lj_carith.h
new file mode 100644
index 0000000..9d6b1dc
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_carith.h
@@ -0,0 +1,37 @@
+/*
+** C data arithmetic.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CARITH_H
+#define _LJ_CARITH_H
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+LJ_FUNC int lj_carith_op(lua_State *L, MMS mm);
+
+#if LJ_32
+LJ_FUNC uint64_t lj_carith_shl64(uint64_t x, int32_t sh);
+LJ_FUNC uint64_t lj_carith_shr64(uint64_t x, int32_t sh);
+LJ_FUNC uint64_t lj_carith_sar64(uint64_t x, int32_t sh);
+LJ_FUNC uint64_t lj_carith_rol64(uint64_t x, int32_t sh);
+LJ_FUNC uint64_t lj_carith_ror64(uint64_t x, int32_t sh);
+#endif
+LJ_FUNC uint64_t lj_carith_shift64(uint64_t x, int32_t sh, int op);
+LJ_FUNC uint64_t lj_carith_check64(lua_State *L, int narg, CTypeID *id);
+
+#if LJ_32 && LJ_HASJIT
+LJ_FUNC int64_t lj_carith_mul64(int64_t x, int64_t k);
+#endif
+LJ_FUNC uint64_t lj_carith_divu64(uint64_t a, uint64_t b);
+LJ_FUNC int64_t lj_carith_divi64(int64_t a, int64_t b);
+LJ_FUNC uint64_t lj_carith_modu64(uint64_t a, uint64_t b);
+LJ_FUNC int64_t lj_carith_modi64(int64_t a, int64_t b);
+LJ_FUNC uint64_t lj_carith_powu64(uint64_t x, uint64_t k);
+LJ_FUNC int64_t lj_carith_powi64(int64_t x, int64_t k);
+
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_ccall.c b/libs/luajit-cmake/luajit/src/lj_ccall.c
new file mode 100644
index 0000000..25f54de
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_ccall.c
@@ -0,0 +1,1189 @@
+/*
+** FFI C call handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_tab.h"
+#include "lj_ctype.h"
+#include "lj_cconv.h"
+#include "lj_cdata.h"
+#include "lj_ccall.h"
+#include "lj_trace.h"
+
+/* Target-specific handling of register arguments. */
+#if LJ_TARGET_X86
+/* -- x86 calling conventions --------------------------------------------- */
+
+#if LJ_ABI_WIN
+
+#define CCALL_HANDLE_STRUCTRET \
+  /* Return structs bigger than 8 by reference (on stack only). */ \
+  cc->retref = (sz > 8); \
+  if (cc->retref) cc->stack[nsp++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_COMPLEXRET CCALL_HANDLE_STRUCTRET
+
+#else
+
+#if LJ_TARGET_OSX
+
+#define CCALL_HANDLE_STRUCTRET \
+  /* Return structs of size 1, 2, 4 or 8 in registers. */ \
+  cc->retref = !(sz == 1 || sz == 2 || sz == 4 || sz == 8); \
+  if (cc->retref) { \
+    if (ngpr < maxgpr) \
+      cc->gpr[ngpr++] = (GPRArg)dp; \
+    else \
+      cc->stack[nsp++] = (GPRArg)dp; \
+  } else {  /* Struct with single FP field ends up in FPR. */ \
+    cc->resx87 = ccall_classify_struct(cts, ctr); \
+  }
+
+#define CCALL_HANDLE_STRUCTRET2 \
+  if (cc->resx87) sp = (uint8_t *)&cc->fpr[0]; \
+  memcpy(dp, sp, ctr->size);
+
+#else
+
+#define CCALL_HANDLE_STRUCTRET \
+  cc->retref = 1;  /* Return all structs by reference (in reg or on stack). */ \
+  if (ngpr < maxgpr) \
+    cc->gpr[ngpr++] = (GPRArg)dp; \
+  else \
+    cc->stack[nsp++] = (GPRArg)dp;
+
+#endif
+
+#define CCALL_HANDLE_COMPLEXRET \
+  /* Return complex float in GPRs and complex double by reference. */ \
+  cc->retref = (sz > 8); \
+  if (cc->retref) { \
+    if (ngpr < maxgpr) \
+      cc->gpr[ngpr++] = (GPRArg)dp; \
+    else \
+      cc->stack[nsp++] = (GPRArg)dp; \
+  }
+
+#endif
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  if (!cc->retref) \
+    *(int64_t *)dp = *(int64_t *)sp;  /* Copy complex float from GPRs. */
+
+#define CCALL_HANDLE_STRUCTARG \
+  ngpr = maxgpr;  /* Pass all structs by value on the stack. */
+
+#define CCALL_HANDLE_COMPLEXARG \
+  isfp = 1;  /* Pass complex by value on stack. */
+
+#define CCALL_HANDLE_REGARG \
+  if (!isfp) {  /* Only non-FP values may be passed in registers. */ \
+    if (n > 1) {  /* Anything > 32 bit is passed on the stack. */ \
+      if (!LJ_ABI_WIN) ngpr = maxgpr;  /* Prevent reordering. */ \
+    } else if (ngpr + 1 <= maxgpr) { \
+      dp = &cc->gpr[ngpr]; \
+      ngpr += n; \
+      goto done; \
+    } \
+  }
+
+#elif LJ_TARGET_X64 && LJ_ABI_WIN
+/* -- Windows/x64 calling conventions ------------------------------------- */
+
+#define CCALL_HANDLE_STRUCTRET \
+  /* Return structs of size 1, 2, 4 or 8 in a GPR. */ \
+  cc->retref = !(sz == 1 || sz == 2 || sz == 4 || sz == 8); \
+  if (cc->retref) cc->gpr[ngpr++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_COMPLEXRET CCALL_HANDLE_STRUCTRET
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  if (!cc->retref) \
+    *(int64_t *)dp = *(int64_t *)sp;  /* Copy complex float from GPRs. */
+
+#define CCALL_HANDLE_STRUCTARG \
+  /* Pass structs of size 1, 2, 4 or 8 in a GPR by value. */ \
+  if (!(sz == 1 || sz == 2 || sz == 4 || sz == 8)) { \
+    rp = cdataptr(lj_cdata_new(cts, did, sz)); \
+    sz = CTSIZE_PTR;  /* Pass all other structs by reference. */ \
+  }
+
+#define CCALL_HANDLE_COMPLEXARG \
+  /* Pass complex float in a GPR and complex double by reference. */ \
+  if (sz != 2*sizeof(float)) { \
+    rp = cdataptr(lj_cdata_new(cts, did, sz)); \
+    sz = CTSIZE_PTR; \
+  }
+
+/* Windows/x64 argument registers are strictly positional (use ngpr). */
+#define CCALL_HANDLE_REGARG \
+  if (isfp) { \
+    if (ngpr < maxgpr) { dp = &cc->fpr[ngpr++]; nfpr = ngpr; goto done; } \
+  } else { \
+    if (ngpr < maxgpr) { dp = &cc->gpr[ngpr++]; goto done; } \
+  }
+
+#elif LJ_TARGET_X64
+/* -- POSIX/x64 calling conventions --------------------------------------- */
+
+#define CCALL_HANDLE_STRUCTRET \
+  int rcl[2]; rcl[0] = rcl[1] = 0; \
+  if (ccall_classify_struct(cts, ctr, rcl, 0)) { \
+    cc->retref = 1;  /* Return struct by reference. */ \
+    cc->gpr[ngpr++] = (GPRArg)dp; \
+  } else { \
+    cc->retref = 0;  /* Return small structs in registers. */ \
+  }
+
+#define CCALL_HANDLE_STRUCTRET2 \
+  int rcl[2]; rcl[0] = rcl[1] = 0; \
+  ccall_classify_struct(cts, ctr, rcl, 0); \
+  ccall_struct_ret(cc, rcl, dp, ctr->size);
+
+#define CCALL_HANDLE_COMPLEXRET \
+  /* Complex values are returned in one or two FPRs. */ \
+  cc->retref = 0;
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  if (ctr->size == 2*sizeof(float)) {  /* Copy complex float from FPR. */ \
+    *(int64_t *)dp = cc->fpr[0].l[0]; \
+  } else {  /* Copy non-contiguous complex double from FPRs. */ \
+    ((int64_t *)dp)[0] = cc->fpr[0].l[0]; \
+    ((int64_t *)dp)[1] = cc->fpr[1].l[0]; \
+  }
+
+#define CCALL_HANDLE_STRUCTARG \
+  int rcl[2]; rcl[0] = rcl[1] = 0; \
+  if (!ccall_classify_struct(cts, d, rcl, 0)) { \
+    cc->nsp = nsp; cc->ngpr = ngpr; cc->nfpr = nfpr; \
+    if (ccall_struct_arg(cc, cts, d, rcl, o, narg)) goto err_nyi; \
+    nsp = cc->nsp; ngpr = cc->ngpr; nfpr = cc->nfpr; \
+    continue; \
+  }  /* Pass all other structs by value on stack. */
+
+#define CCALL_HANDLE_COMPLEXARG \
+  isfp = 2;  /* Pass complex in FPRs or on stack. Needs postprocessing. */
+
+#define CCALL_HANDLE_REGARG \
+  if (isfp) {  /* Try to pass argument in FPRs. */ \
+    int n2 = ctype_isvector(d->info) ? 1 : n; \
+    if (nfpr + n2 <= CCALL_NARG_FPR) { \
+      dp = &cc->fpr[nfpr]; \
+      nfpr += n2; \
+      goto done; \
+    } \
+  } else {  /* Try to pass argument in GPRs. */ \
+    /* Note that reordering is explicitly allowed in the x64 ABI. */ \
+    if (n <= 2 && ngpr + n <= maxgpr) { \
+      dp = &cc->gpr[ngpr]; \
+      ngpr += n; \
+      goto done; \
+    } \
+  }
+
+#elif LJ_TARGET_ARM
+/* -- ARM calling conventions --------------------------------------------- */
+
+#if LJ_ABI_SOFTFP
+
+#define CCALL_HANDLE_STRUCTRET \
+  /* Return structs of size <= 4 in a GPR. */ \
+  cc->retref = !(sz <= 4); \
+  if (cc->retref) cc->gpr[ngpr++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_COMPLEXRET \
+  cc->retref = 1;  /* Return all complex values by reference. */ \
+  cc->gpr[ngpr++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  UNUSED(dp); /* Nothing to do. */
+
+#define CCALL_HANDLE_STRUCTARG \
+  /* Pass all structs by value in registers and/or on the stack. */
+
+#define CCALL_HANDLE_COMPLEXARG \
+  /* Pass complex by value in 2 or 4 GPRs. */
+
+#define CCALL_HANDLE_REGARG_FP1
+#define CCALL_HANDLE_REGARG_FP2
+
+#else
+
+#define CCALL_HANDLE_STRUCTRET \
+  cc->retref = !ccall_classify_struct(cts, ctr, ct); \
+  if (cc->retref) cc->gpr[ngpr++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_STRUCTRET2 \
+  if (ccall_classify_struct(cts, ctr, ct) > 1) sp = (uint8_t *)&cc->fpr[0]; \
+  memcpy(dp, sp, ctr->size);
+
+#define CCALL_HANDLE_COMPLEXRET \
+  if (!(ct->info & CTF_VARARG)) cc->retref = 0;  /* Return complex in FPRs. */
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  if (!(ct->info & CTF_VARARG)) memcpy(dp, &cc->fpr[0], ctr->size);
+
+#define CCALL_HANDLE_STRUCTARG \
+  isfp = (ccall_classify_struct(cts, d, ct) > 1);
+  /* Pass all structs by value in registers and/or on the stack. */
+
+#define CCALL_HANDLE_COMPLEXARG \
+  isfp = 1;  /* Pass complex by value in FPRs or on stack. */
+
+#define CCALL_HANDLE_REGARG_FP1 \
+  if (isfp && !(ct->info & CTF_VARARG)) { \
+    if ((d->info & CTF_ALIGN) > CTALIGN_PTR) { \
+      if (nfpr + (n >> 1) <= CCALL_NARG_FPR) { \
+	dp = &cc->fpr[nfpr]; \
+	nfpr += (n >> 1); \
+	goto done; \
+      } \
+    } else { \
+      if (sz > 1 && fprodd != nfpr) fprodd = 0; \
+      if (fprodd) { \
+	if (2*nfpr+n <= 2*CCALL_NARG_FPR+1) { \
+	  dp = (void *)&cc->fpr[fprodd-1].f[1]; \
+	  nfpr += (n >> 1); \
+	  if ((n & 1)) fprodd = 0; else fprodd = nfpr-1; \
+	  goto done; \
+	} \
+      } else { \
+	if (2*nfpr+n <= 2*CCALL_NARG_FPR) { \
+	  dp = (void *)&cc->fpr[nfpr]; \
+	  nfpr += (n >> 1); \
+	  if ((n & 1)) fprodd = ++nfpr; else fprodd = 0; \
+	  goto done; \
+	} \
+      } \
+    } \
+    fprodd = 0;  /* No reordering after the first FP value is on stack. */ \
+  } else {
+
+#define CCALL_HANDLE_REGARG_FP2	}
+
+#endif
+
+#define CCALL_HANDLE_REGARG \
+  CCALL_HANDLE_REGARG_FP1 \
+  if ((d->info & CTF_ALIGN) > CTALIGN_PTR) { \
+    if (ngpr < maxgpr) \
+      ngpr = (ngpr + 1u) & ~1u;  /* Align to regpair. */ \
+  } \
+  if (ngpr < maxgpr) { \
+    dp = &cc->gpr[ngpr]; \
+    if (ngpr + n > maxgpr) { \
+      nsp += ngpr + n - maxgpr;  /* Assumes contiguous gpr/stack fields. */ \
+      if (nsp > CCALL_MAXSTACK) goto err_nyi;  /* Too many arguments. */ \
+      ngpr = maxgpr; \
+    } else { \
+      ngpr += n; \
+    } \
+    goto done; \
+  } CCALL_HANDLE_REGARG_FP2
+
+#define CCALL_HANDLE_RET \
+  if ((ct->info & CTF_VARARG)) sp = (uint8_t *)&cc->gpr[0];
+
+#elif LJ_TARGET_ARM64
+/* -- ARM64 calling conventions ------------------------------------------- */
+
+#define CCALL_HANDLE_STRUCTRET \
+  cc->retref = !ccall_classify_struct(cts, ctr); \
+  if (cc->retref) cc->retp = dp;
+
+#define CCALL_HANDLE_STRUCTRET2 \
+  unsigned int cl = ccall_classify_struct(cts, ctr); \
+  if ((cl & 4)) { /* Combine float HFA from separate registers. */ \
+    CTSize i = (cl >> 8) - 1; \
+    do { ((uint32_t *)dp)[i] = cc->fpr[i].lo; } while (i--); \
+  } else { \
+    if (cl > 1) sp = (uint8_t *)&cc->fpr[0]; \
+    memcpy(dp, sp, ctr->size); \
+  }
+
+#define CCALL_HANDLE_COMPLEXRET \
+  /* Complex values are returned in one or two FPRs. */ \
+  cc->retref = 0;
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  if (ctr->size == 2*sizeof(float)) {  /* Copy complex float from FPRs. */ \
+    ((float *)dp)[0] = cc->fpr[0].f; \
+    ((float *)dp)[1] = cc->fpr[1].f; \
+  } else {  /* Copy complex double from FPRs. */ \
+    ((double *)dp)[0] = cc->fpr[0].d; \
+    ((double *)dp)[1] = cc->fpr[1].d; \
+  }
+
+#define CCALL_HANDLE_STRUCTARG \
+  unsigned int cl = ccall_classify_struct(cts, d); \
+  if (cl == 0) {  /* Pass struct by reference. */ \
+    rp = cdataptr(lj_cdata_new(cts, did, sz)); \
+    sz = CTSIZE_PTR; \
+  } else if (cl > 1) {  /* Pass struct in FPRs or on stack. */ \
+    isfp = (cl & 4) ? 2 : 1; \
+  }  /* else: Pass struct in GPRs or on stack. */
+
+#define CCALL_HANDLE_COMPLEXARG \
+  /* Pass complex by value in separate (!) FPRs or on stack. */ \
+  isfp = sz == 2*sizeof(float) ? 2 : 1;
+
+#define CCALL_HANDLE_REGARG \
+  if (LJ_TARGET_OSX && isva) { \
+    /* IOS: All variadic arguments are on the stack. */ \
+  } else if (isfp) {  /* Try to pass argument in FPRs. */ \
+    int n2 = ctype_isvector(d->info) ? 1 : \
+	     isfp == 1 ? n : (d->size >> (4-isfp)); \
+    if (nfpr + n2 <= CCALL_NARG_FPR) { \
+      dp = &cc->fpr[nfpr]; \
+      nfpr += n2; \
+      goto done; \
+    } else { \
+      nfpr = CCALL_NARG_FPR;  /* Prevent reordering. */ \
+      if (LJ_TARGET_OSX && d->size < 8) goto err_nyi; \
+    } \
+  } else {  /* Try to pass argument in GPRs. */ \
+    if (!LJ_TARGET_OSX && (d->info & CTF_ALIGN) > CTALIGN_PTR) \
+      ngpr = (ngpr + 1u) & ~1u;  /* Align to regpair. */ \
+    if (ngpr + n <= maxgpr) { \
+      dp = &cc->gpr[ngpr]; \
+      ngpr += n; \
+      goto done; \
+    } else { \
+      ngpr = maxgpr;  /* Prevent reordering. */ \
+      if (LJ_TARGET_OSX && d->size < 8) goto err_nyi; \
+    } \
+  }
+
+#if LJ_BE
+#define CCALL_HANDLE_RET \
+  if (ctype_isfp(ctr->info) && ctr->size == sizeof(float)) \
+    sp = (uint8_t *)&cc->fpr[0].f;
+#endif
+
+
+#elif LJ_TARGET_PPC
+/* -- PPC calling conventions --------------------------------------------- */
+
+#define CCALL_HANDLE_STRUCTRET \
+  cc->retref = 1;  /* Return all structs by reference. */ \
+  cc->gpr[ngpr++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_COMPLEXRET \
+  /* Complex values are returned in 2 or 4 GPRs. */ \
+  cc->retref = 0;
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  memcpy(dp, sp, ctr->size);  /* Copy complex from GPRs. */
+
+#define CCALL_HANDLE_STRUCTARG \
+  rp = cdataptr(lj_cdata_new(cts, did, sz)); \
+  sz = CTSIZE_PTR;  /* Pass all structs by reference. */
+
+#define CCALL_HANDLE_COMPLEXARG \
+  /* Pass complex by value in 2 or 4 GPRs. */
+
+#define CCALL_HANDLE_GPR \
+  /* Try to pass argument in GPRs. */ \
+  if (n > 1) { \
+    /* int64_t or complex (float). */ \
+    lj_assertL(n == 2 || n == 4, "bad GPR size %d", n); \
+    if (ctype_isinteger(d->info) || ctype_isfp(d->info)) \
+      ngpr = (ngpr + 1u) & ~1u;  /* Align int64_t to regpair. */ \
+    else if (ngpr + n > maxgpr) \
+      ngpr = maxgpr;  /* Prevent reordering. */ \
+  } \
+  if (ngpr + n <= maxgpr) { \
+    dp = &cc->gpr[ngpr]; \
+    ngpr += n; \
+    goto done; \
+  } \
+
+#if LJ_ABI_SOFTFP
+#define CCALL_HANDLE_REGARG  CCALL_HANDLE_GPR
+#else
+#define CCALL_HANDLE_REGARG \
+  if (isfp) {  /* Try to pass argument in FPRs. */ \
+    if (nfpr + 1 <= CCALL_NARG_FPR) { \
+      dp = &cc->fpr[nfpr]; \
+      nfpr += 1; \
+      d = ctype_get(cts, CTID_DOUBLE);  /* FPRs always hold doubles. */ \
+      goto done; \
+    } \
+  } else { \
+    CCALL_HANDLE_GPR \
+  }
+#endif
+
+#if !LJ_ABI_SOFTFP
+#define CCALL_HANDLE_RET \
+  if (ctype_isfp(ctr->info) && ctr->size == sizeof(float)) \
+    ctr = ctype_get(cts, CTID_DOUBLE);  /* FPRs always hold doubles. */
+#endif
+
+#elif LJ_TARGET_MIPS32
+/* -- MIPS o32 calling conventions ---------------------------------------- */
+
+#define CCALL_HANDLE_STRUCTRET \
+  cc->retref = 1;  /* Return all structs by reference. */ \
+  cc->gpr[ngpr++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_COMPLEXRET \
+  /* Complex values are returned in 1 or 2 FPRs. */ \
+  cc->retref = 0;
+
+#if LJ_ABI_SOFTFP
+#define CCALL_HANDLE_COMPLEXRET2 \
+  if (ctr->size == 2*sizeof(float)) {  /* Copy complex float from GPRs. */ \
+    ((intptr_t *)dp)[0] = cc->gpr[0]; \
+    ((intptr_t *)dp)[1] = cc->gpr[1]; \
+  } else {  /* Copy complex double from GPRs. */ \
+    ((intptr_t *)dp)[0] = cc->gpr[0]; \
+    ((intptr_t *)dp)[1] = cc->gpr[1]; \
+    ((intptr_t *)dp)[2] = cc->gpr[2]; \
+    ((intptr_t *)dp)[3] = cc->gpr[3]; \
+  }
+#else
+#define CCALL_HANDLE_COMPLEXRET2 \
+  if (ctr->size == 2*sizeof(float)) {  /* Copy complex float from FPRs. */ \
+    ((float *)dp)[0] = cc->fpr[0].f; \
+    ((float *)dp)[1] = cc->fpr[1].f; \
+  } else {  /* Copy complex double from FPRs. */ \
+    ((double *)dp)[0] = cc->fpr[0].d; \
+    ((double *)dp)[1] = cc->fpr[1].d; \
+  }
+#endif
+
+#define CCALL_HANDLE_STRUCTARG \
+  /* Pass all structs by value in registers and/or on the stack. */
+
+#define CCALL_HANDLE_COMPLEXARG \
+  /* Pass complex by value in 2 or 4 GPRs. */
+
+#define CCALL_HANDLE_GPR \
+  if ((d->info & CTF_ALIGN) > CTALIGN_PTR) \
+    ngpr = (ngpr + 1u) & ~1u;  /* Align to regpair. */ \
+  if (ngpr < maxgpr) { \
+    dp = &cc->gpr[ngpr]; \
+    if (ngpr + n > maxgpr) { \
+     nsp += ngpr + n - maxgpr;  /* Assumes contiguous gpr/stack fields. */ \
+     if (nsp > CCALL_MAXSTACK) goto err_nyi;  /* Too many arguments. */ \
+     ngpr = maxgpr; \
+    } else { \
+     ngpr += n; \
+    } \
+    goto done; \
+  }
+
+#if !LJ_ABI_SOFTFP	/* MIPS32 hard-float */
+#define CCALL_HANDLE_REGARG \
+  if (isfp && nfpr < CCALL_NARG_FPR && !(ct->info & CTF_VARARG)) { \
+    /* Try to pass argument in FPRs. */ \
+    dp = n == 1 ? (void *)&cc->fpr[nfpr].f : (void *)&cc->fpr[nfpr].d; \
+    nfpr++; ngpr += n; \
+    goto done; \
+  } else {  /* Try to pass argument in GPRs. */ \
+    nfpr = CCALL_NARG_FPR; \
+    CCALL_HANDLE_GPR \
+  }
+#else			/* MIPS32 soft-float */
+#define CCALL_HANDLE_REGARG CCALL_HANDLE_GPR
+#endif
+
+#if !LJ_ABI_SOFTFP
+/* On MIPS64 soft-float, position of float return values is endian-dependant. */
+#define CCALL_HANDLE_RET \
+  if (ctype_isfp(ctr->info) && ctr->size == sizeof(float)) \
+    sp = (uint8_t *)&cc->fpr[0].f;
+#endif
+
+#elif LJ_TARGET_MIPS64
+/* -- MIPS n64 calling conventions ---------------------------------------- */
+
+#define CCALL_HANDLE_STRUCTRET \
+  cc->retref = !(sz <= 16); \
+  if (cc->retref) cc->gpr[ngpr++] = (GPRArg)dp;
+
+#define CCALL_HANDLE_STRUCTRET2 \
+  ccall_copy_struct(cc, ctr, dp, sp, ccall_classify_struct(cts, ctr, ct));
+
+#define CCALL_HANDLE_COMPLEXRET \
+  /* Complex values are returned in 1 or 2 FPRs. */ \
+  cc->retref = 0;
+
+#if LJ_ABI_SOFTFP	/* MIPS64 soft-float */
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  if (ctr->size == 2*sizeof(float)) {  /* Copy complex float from GPRs. */ \
+    ((intptr_t *)dp)[0] = cc->gpr[0]; \
+  } else {  /* Copy complex double from GPRs. */ \
+    ((intptr_t *)dp)[0] = cc->gpr[0]; \
+    ((intptr_t *)dp)[1] = cc->gpr[1]; \
+  }
+
+#define CCALL_HANDLE_COMPLEXARG \
+  /* Pass complex by value in 2 or 4 GPRs. */
+
+/* Position of soft-float 'float' return value depends on endianess.  */
+#define CCALL_HANDLE_RET \
+  if (ctype_isfp(ctr->info) && ctr->size == sizeof(float)) \
+    sp = (uint8_t *)cc->gpr + LJ_ENDIAN_SELECT(0, 4);
+
+#else			/* MIPS64 hard-float */
+
+#define CCALL_HANDLE_COMPLEXRET2 \
+  if (ctr->size == 2*sizeof(float)) {  /* Copy complex float from FPRs. */ \
+    ((float *)dp)[0] = cc->fpr[0].f; \
+    ((float *)dp)[1] = cc->fpr[1].f; \
+  } else {  /* Copy complex double from FPRs. */ \
+    ((double *)dp)[0] = cc->fpr[0].d; \
+    ((double *)dp)[1] = cc->fpr[1].d; \
+  }
+
+#define CCALL_HANDLE_COMPLEXARG \
+  if (sz == 2*sizeof(float)) { \
+    isfp = 2; \
+    if (ngpr < maxgpr) \
+      sz *= 2; \
+  }
+
+#define CCALL_HANDLE_RET \
+  if (ctype_isfp(ctr->info) && ctr->size == sizeof(float)) \
+    sp = (uint8_t *)&cc->fpr[0].f;
+
+#endif
+
+#define CCALL_HANDLE_STRUCTARG \
+  /* Pass all structs by value in registers and/or on the stack. */
+
+#define CCALL_HANDLE_REGARG \
+  if (ngpr < maxgpr) { \
+    dp = &cc->gpr[ngpr]; \
+    if (ngpr + n > maxgpr) { \
+      nsp += ngpr + n - maxgpr;  /* Assumes contiguous gpr/stack fields. */ \
+      if (nsp > CCALL_MAXSTACK) goto err_nyi;  /* Too many arguments. */ \
+      ngpr = maxgpr; \
+    } else { \
+      ngpr += n; \
+    } \
+    goto done; \
+  }
+
+#else
+#error "Missing calling convention definitions for this architecture"
+#endif
+
+#ifndef CCALL_HANDLE_STRUCTRET2
+#define CCALL_HANDLE_STRUCTRET2 \
+  memcpy(dp, sp, ctr->size);  /* Copy struct return value from GPRs. */
+#endif
+
+/* -- x86 OSX ABI struct classification ----------------------------------- */
+
+#if LJ_TARGET_X86 && LJ_TARGET_OSX
+
+/* Check for struct with single FP field. */
+static int ccall_classify_struct(CTState *cts, CType *ct)
+{
+  CTSize sz = ct->size;
+  if (!(sz == sizeof(float) || sz == sizeof(double))) return 0;
+  if ((ct->info & CTF_UNION)) return 0;
+  while (ct->sib) {
+    ct = ctype_get(cts, ct->sib);
+    if (ctype_isfield(ct->info)) {
+      CType *sct = ctype_rawchild(cts, ct);
+      if (ctype_isfp(sct->info)) {
+	if (sct->size == sz)
+	  return (sz >> 2);  /* Return 1 for float or 2 for double. */
+      } else if (ctype_isstruct(sct->info)) {
+	if (sct->size)
+	  return ccall_classify_struct(cts, sct);
+      } else {
+	break;
+      }
+    } else if (ctype_isbitfield(ct->info)) {
+      break;
+    } else if (ctype_isxattrib(ct->info, CTA_SUBTYPE)) {
+      CType *sct = ctype_rawchild(cts, ct);
+      if (sct->size)
+	return ccall_classify_struct(cts, sct);
+    }
+  }
+  return 0;
+}
+
+#endif
+
+/* -- x64 struct classification ------------------------------------------- */
+
+#if LJ_TARGET_X64 && !LJ_ABI_WIN
+
+/* Register classes for x64 struct classification. */
+#define CCALL_RCL_INT	1
+#define CCALL_RCL_SSE	2
+#define CCALL_RCL_MEM	4
+/* NYI: classify vectors. */
+
+static int ccall_classify_struct(CTState *cts, CType *ct, int *rcl, CTSize ofs);
+
+/* Classify a C type. */
+static void ccall_classify_ct(CTState *cts, CType *ct, int *rcl, CTSize ofs)
+{
+  if (ctype_isarray(ct->info)) {
+    CType *cct = ctype_rawchild(cts, ct);
+    CTSize eofs, esz = cct->size, asz = ct->size;
+    for (eofs = 0; eofs < asz; eofs += esz)
+      ccall_classify_ct(cts, cct, rcl, ofs+eofs);
+  } else if (ctype_isstruct(ct->info)) {
+    ccall_classify_struct(cts, ct, rcl, ofs);
+  } else {
+    int cl = ctype_isfp(ct->info) ? CCALL_RCL_SSE : CCALL_RCL_INT;
+    lj_assertCTS(ctype_hassize(ct->info),
+		 "classify ctype %08x without size", ct->info);
+    if ((ofs & (ct->size-1))) cl = CCALL_RCL_MEM;  /* Unaligned. */
+    rcl[(ofs >= 8)] |= cl;
+  }
+}
+
+/* Recursively classify a struct based on its fields. */
+static int ccall_classify_struct(CTState *cts, CType *ct, int *rcl, CTSize ofs)
+{
+  if (ct->size > 16) return CCALL_RCL_MEM;  /* Too big, gets memory class. */
+  while (ct->sib) {
+    CTSize fofs;
+    ct = ctype_get(cts, ct->sib);
+    fofs = ofs+ct->size;
+    if (ctype_isfield(ct->info))
+      ccall_classify_ct(cts, ctype_rawchild(cts, ct), rcl, fofs);
+    else if (ctype_isbitfield(ct->info))
+      rcl[(fofs >= 8)] |= CCALL_RCL_INT;  /* NYI: unaligned bitfields? */
+    else if (ctype_isxattrib(ct->info, CTA_SUBTYPE))
+      ccall_classify_struct(cts, ctype_rawchild(cts, ct), rcl, fofs);
+  }
+  return ((rcl[0]|rcl[1]) & CCALL_RCL_MEM);  /* Memory class? */
+}
+
+/* Try to split up a small struct into registers. */
+static int ccall_struct_reg(CCallState *cc, CTState *cts, GPRArg *dp, int *rcl)
+{
+  MSize ngpr = cc->ngpr, nfpr = cc->nfpr;
+  uint32_t i;
+  UNUSED(cts);
+  for (i = 0; i < 2; i++) {
+    lj_assertCTS(!(rcl[i] & CCALL_RCL_MEM), "pass mem struct in reg");
+    if ((rcl[i] & CCALL_RCL_INT)) {  /* Integer class takes precedence. */
+      if (ngpr >= CCALL_NARG_GPR) return 1;  /* Register overflow. */
+      cc->gpr[ngpr++] = dp[i];
+    } else if ((rcl[i] & CCALL_RCL_SSE)) {
+      if (nfpr >= CCALL_NARG_FPR) return 1;  /* Register overflow. */
+      cc->fpr[nfpr++].l[0] = dp[i];
+    }
+  }
+  cc->ngpr = ngpr; cc->nfpr = nfpr;
+  return 0;  /* Ok. */
+}
+
+/* Pass a small struct argument. */
+static int ccall_struct_arg(CCallState *cc, CTState *cts, CType *d, int *rcl,
+			    TValue *o, int narg)
+{
+  GPRArg dp[2];
+  dp[0] = dp[1] = 0;
+  /* Convert to temp. struct. */
+  lj_cconv_ct_tv(cts, d, (uint8_t *)dp, o, CCF_ARG(narg));
+  if (ccall_struct_reg(cc, cts, dp, rcl)) {
+    /* Register overflow? Pass on stack. */
+    MSize nsp = cc->nsp, n = rcl[1] ? 2 : 1;
+    if (nsp + n > CCALL_MAXSTACK) return 1;  /* Too many arguments. */
+    cc->nsp = nsp + n;
+    memcpy(&cc->stack[nsp], dp, n*CTSIZE_PTR);
+  }
+  return 0;  /* Ok. */
+}
+
+/* Combine returned small struct. */
+static void ccall_struct_ret(CCallState *cc, int *rcl, uint8_t *dp, CTSize sz)
+{
+  GPRArg sp[2];
+  MSize ngpr = 0, nfpr = 0;
+  uint32_t i;
+  for (i = 0; i < 2; i++) {
+    if ((rcl[i] & CCALL_RCL_INT)) {  /* Integer class takes precedence. */
+      sp[i] = cc->gpr[ngpr++];
+    } else if ((rcl[i] & CCALL_RCL_SSE)) {
+      sp[i] = cc->fpr[nfpr++].l[0];
+    }
+  }
+  memcpy(dp, sp, sz);
+}
+#endif
+
+/* -- ARM hard-float ABI struct classification ---------------------------- */
+
+#if LJ_TARGET_ARM && !LJ_ABI_SOFTFP
+
+/* Classify a struct based on its fields. */
+static unsigned int ccall_classify_struct(CTState *cts, CType *ct, CType *ctf)
+{
+  CTSize sz = ct->size;
+  unsigned int r = 0, n = 0, isu = (ct->info & CTF_UNION);
+  if ((ctf->info & CTF_VARARG)) goto noth;
+  while (ct->sib) {
+    CType *sct;
+    ct = ctype_get(cts, ct->sib);
+    if (ctype_isfield(ct->info)) {
+      sct = ctype_rawchild(cts, ct);
+      if (ctype_isfp(sct->info)) {
+	r |= sct->size;
+	if (!isu) n++; else if (n == 0) n = 1;
+      } else if (ctype_iscomplex(sct->info)) {
+	r |= (sct->size >> 1);
+	if (!isu) n += 2; else if (n < 2) n = 2;
+      } else if (ctype_isstruct(sct->info)) {
+	goto substruct;
+      } else {
+	goto noth;
+      }
+    } else if (ctype_isbitfield(ct->info)) {
+      goto noth;
+    } else if (ctype_isxattrib(ct->info, CTA_SUBTYPE)) {
+      sct = ctype_rawchild(cts, ct);
+    substruct:
+      if (sct->size > 0) {
+	unsigned int s = ccall_classify_struct(cts, sct, ctf);
+	if (s <= 1) goto noth;
+	r |= (s & 255);
+	if (!isu) n += (s >> 8); else if (n < (s >>8)) n = (s >> 8);
+      }
+    }
+  }
+  if ((r == 4 || r == 8) && n <= 4)
+    return r + (n << 8);
+noth:  /* Not a homogeneous float/double aggregate. */
+  return (sz <= 4);  /* Return structs of size <= 4 in a GPR. */
+}
+
+#endif
+
+/* -- ARM64 ABI struct classification ------------------------------------- */
+
+#if LJ_TARGET_ARM64
+
+/* Classify a struct based on its fields. */
+static unsigned int ccall_classify_struct(CTState *cts, CType *ct)
+{
+  CTSize sz = ct->size;
+  unsigned int r = 0, n = 0, isu = (ct->info & CTF_UNION);
+  while (ct->sib) {
+    CType *sct;
+    ct = ctype_get(cts, ct->sib);
+    if (ctype_isfield(ct->info)) {
+      sct = ctype_rawchild(cts, ct);
+      if (ctype_isfp(sct->info)) {
+	r |= sct->size;
+	if (!isu) n++; else if (n == 0) n = 1;
+      } else if (ctype_iscomplex(sct->info)) {
+	r |= (sct->size >> 1);
+	if (!isu) n += 2; else if (n < 2) n = 2;
+      } else if (ctype_isstruct(sct->info)) {
+	goto substruct;
+      } else {
+	goto noth;
+      }
+    } else if (ctype_isbitfield(ct->info)) {
+      goto noth;
+    } else if (ctype_isxattrib(ct->info, CTA_SUBTYPE)) {
+      sct = ctype_rawchild(cts, ct);
+    substruct:
+      if (sct->size > 0) {
+	unsigned int s = ccall_classify_struct(cts, sct);
+	if (s <= 1) goto noth;
+	r |= (s & 255);
+	if (!isu) n += (s >> 8); else if (n < (s >>8)) n = (s >> 8);
+      }
+    }
+  }
+  if ((r == 4 || r == 8) && n <= 4)
+    return r + (n << 8);
+noth:  /* Not a homogeneous float/double aggregate. */
+  return (sz <= 16);  /* Return structs of size <= 16 in GPRs. */
+}
+
+#endif
+
+/* -- MIPS64 ABI struct classification ---------------------------- */
+
+#if LJ_TARGET_MIPS64
+
+#define FTYPE_FLOAT	1
+#define FTYPE_DOUBLE	2
+
+/* Classify FP fields (max. 2) and their types. */
+static unsigned int ccall_classify_struct(CTState *cts, CType *ct, CType *ctf)
+{
+  int n = 0, ft = 0;
+  if ((ctf->info & CTF_VARARG) || (ct->info & CTF_UNION))
+    goto noth;
+  while (ct->sib) {
+    CType *sct;
+    ct = ctype_get(cts, ct->sib);
+    if (n == 2) {
+      goto noth;
+    } else if (ctype_isfield(ct->info)) {
+      sct = ctype_rawchild(cts, ct);
+      if (ctype_isfp(sct->info)) {
+	ft |= (sct->size == 4 ? FTYPE_FLOAT : FTYPE_DOUBLE) << 2*n;
+	n++;
+      } else {
+	goto noth;
+      }
+    } else if (ctype_isbitfield(ct->info) ||
+	       ctype_isxattrib(ct->info, CTA_SUBTYPE)) {
+      goto noth;
+    }
+  }
+  if (n <= 2)
+    return ft;
+noth:  /* Not a homogeneous float/double aggregate. */
+  return 0;  /* Struct is in GPRs. */
+}
+
+static void ccall_copy_struct(CCallState *cc, CType *ctr, void *dp, void *sp,
+			      int ft)
+{
+  if (LJ_ABI_SOFTFP ? ft :
+      ((ft & 3) == FTYPE_FLOAT || (ft >> 2) == FTYPE_FLOAT)) {
+    int i, ofs = 0;
+    for (i = 0; ft != 0; i++, ft >>= 2) {
+      if ((ft & 3) == FTYPE_FLOAT) {
+#if LJ_ABI_SOFTFP
+	/* The 2nd FP struct result is in CARG1 (gpr[2]) and not CRET2. */
+	memcpy((uint8_t *)dp + ofs,
+	       (uint8_t *)&cc->gpr[2*i] + LJ_ENDIAN_SELECT(0, 4), 4);
+#else
+	*(float *)((uint8_t *)dp + ofs) = cc->fpr[i].f;
+#endif
+	ofs += 4;
+      } else {
+	ofs = (ofs + 7) & ~7;  /* 64 bit alignment. */
+#if LJ_ABI_SOFTFP
+	*(intptr_t *)((uint8_t *)dp + ofs) = cc->gpr[2*i];
+#else
+	*(double *)((uint8_t *)dp + ofs) = cc->fpr[i].d;
+#endif
+	ofs += 8;
+      }
+    }
+  } else {
+#if !LJ_ABI_SOFTFP
+    if (ft) sp = (uint8_t *)&cc->fpr[0];
+#endif
+    memcpy(dp, sp, ctr->size);
+  }
+}
+
+#endif
+
+/* -- Common C call handling ---------------------------------------------- */
+
+/* Infer the destination CTypeID for a vararg argument. */
+CTypeID lj_ccall_ctid_vararg(CTState *cts, cTValue *o)
+{
+  if (tvisnumber(o)) {
+    return CTID_DOUBLE;
+  } else if (tviscdata(o)) {
+    CTypeID id = cdataV(o)->ctypeid;
+    CType *s = ctype_get(cts, id);
+    if (ctype_isrefarray(s->info)) {
+      return lj_ctype_intern(cts,
+	       CTINFO(CT_PTR, CTALIGN_PTR|ctype_cid(s->info)), CTSIZE_PTR);
+    } else if (ctype_isstruct(s->info) || ctype_isfunc(s->info)) {
+      /* NYI: how to pass a struct by value in a vararg argument? */
+      return lj_ctype_intern(cts, CTINFO(CT_PTR, CTALIGN_PTR|id), CTSIZE_PTR);
+    } else if (ctype_isfp(s->info) && s->size == sizeof(float)) {
+      return CTID_DOUBLE;
+    } else {
+      return id;
+    }
+  } else if (tvisstr(o)) {
+    return CTID_P_CCHAR;
+  } else if (tvisbool(o)) {
+    return CTID_BOOL;
+  } else {
+    return CTID_P_VOID;
+  }
+}
+
+/* Setup arguments for C call. */
+static int ccall_set_args(lua_State *L, CTState *cts, CType *ct,
+			  CCallState *cc)
+{
+  int gcsteps = 0;
+  TValue *o, *top = L->top;
+  CTypeID fid;
+  CType *ctr;
+  MSize maxgpr, ngpr = 0, nsp = 0, narg;
+#if CCALL_NARG_FPR
+  MSize nfpr = 0;
+#if LJ_TARGET_ARM
+  MSize fprodd = 0;
+#endif
+#endif
+
+  /* Clear unused regs to get some determinism in case of misdeclaration. */
+  memset(cc->gpr, 0, sizeof(cc->gpr));
+#if CCALL_NUM_FPR
+  memset(cc->fpr, 0, sizeof(cc->fpr));
+#endif
+
+#if LJ_TARGET_X86
+  /* x86 has several different calling conventions. */
+  cc->resx87 = 0;
+  switch (ctype_cconv(ct->info)) {
+  case CTCC_FASTCALL: maxgpr = 2; break;
+  case CTCC_THISCALL: maxgpr = 1; break;
+  default: maxgpr = 0; break;
+  }
+#else
+  maxgpr = CCALL_NARG_GPR;
+#endif
+
+  /* Perform required setup for some result types. */
+  ctr = ctype_rawchild(cts, ct);
+  if (ctype_isvector(ctr->info)) {
+    if (!(CCALL_VECTOR_REG && (ctr->size == 8 || ctr->size == 16)))
+      goto err_nyi;
+  } else if (ctype_iscomplex(ctr->info) || ctype_isstruct(ctr->info)) {
+    /* Preallocate cdata object and anchor it after arguments. */
+    CTSize sz = ctr->size;
+    GCcdata *cd = lj_cdata_new(cts, ctype_cid(ct->info), sz);
+    void *dp = cdataptr(cd);
+    setcdataV(L, L->top++, cd);
+    if (ctype_isstruct(ctr->info)) {
+      CCALL_HANDLE_STRUCTRET
+    } else {
+      CCALL_HANDLE_COMPLEXRET
+    }
+#if LJ_TARGET_X86
+  } else if (ctype_isfp(ctr->info)) {
+    cc->resx87 = ctr->size == sizeof(float) ? 1 : 2;
+#endif
+  }
+
+  /* Skip initial attributes. */
+  fid = ct->sib;
+  while (fid) {
+    CType *ctf = ctype_get(cts, fid);
+    if (!ctype_isattrib(ctf->info)) break;
+    fid = ctf->sib;
+  }
+
+  /* Walk through all passed arguments. */
+  for (o = L->base+1, narg = 1; o < top; o++, narg++) {
+    CTypeID did;
+    CType *d;
+    CTSize sz;
+    MSize n, isfp = 0, isva = 0;
+    void *dp, *rp = NULL;
+
+    if (fid) {  /* Get argument type from field. */
+      CType *ctf = ctype_get(cts, fid);
+      fid = ctf->sib;
+      lj_assertL(ctype_isfield(ctf->info), "field expected");
+      did = ctype_cid(ctf->info);
+    } else {
+      if (!(ct->info & CTF_VARARG))
+	lj_err_caller(L, LJ_ERR_FFI_NUMARG);  /* Too many arguments. */
+      did = lj_ccall_ctid_vararg(cts, o);  /* Infer vararg type. */
+      isva = 1;
+    }
+    d = ctype_raw(cts, did);
+    sz = d->size;
+
+    /* Find out how (by value/ref) and where (GPR/FPR) to pass an argument. */
+    if (ctype_isnum(d->info)) {
+      if (sz > 8) goto err_nyi;
+      if ((d->info & CTF_FP))
+	isfp = 1;
+    } else if (ctype_isvector(d->info)) {
+      if (CCALL_VECTOR_REG && (sz == 8 || sz == 16))
+	isfp = 1;
+      else
+	goto err_nyi;
+    } else if (ctype_isstruct(d->info)) {
+      CCALL_HANDLE_STRUCTARG
+    } else if (ctype_iscomplex(d->info)) {
+      CCALL_HANDLE_COMPLEXARG
+    } else {
+      sz = CTSIZE_PTR;
+    }
+    sz = (sz + CTSIZE_PTR-1) & ~(CTSIZE_PTR-1);
+    n = sz / CTSIZE_PTR;  /* Number of GPRs or stack slots needed. */
+
+    CCALL_HANDLE_REGARG  /* Handle register arguments. */
+
+    /* Otherwise pass argument on stack. */
+    if (CCALL_ALIGN_STACKARG && !rp && (d->info & CTF_ALIGN) > CTALIGN_PTR) {
+      MSize align = (1u << ctype_align(d->info-CTALIGN_PTR)) -1;
+      nsp = (nsp + align) & ~align;  /* Align argument on stack. */
+    }
+    if (nsp + n > CCALL_MAXSTACK) {  /* Too many arguments. */
+    err_nyi:
+      lj_err_caller(L, LJ_ERR_FFI_NYICALL);
+    }
+    dp = &cc->stack[nsp];
+    nsp += n;
+    isva = 0;
+
+  done:
+    if (rp) {  /* Pass by reference. */
+      gcsteps++;
+      *(void **)dp = rp;
+      dp = rp;
+    }
+    lj_cconv_ct_tv(cts, d, (uint8_t *)dp, o, CCF_ARG(narg));
+    /* Extend passed integers to 32 bits at least. */
+    if (ctype_isinteger_or_bool(d->info) && d->size < 4) {
+      if (d->info & CTF_UNSIGNED)
+	*(uint32_t *)dp = d->size == 1 ? (uint32_t)*(uint8_t *)dp :
+					 (uint32_t)*(uint16_t *)dp;
+      else
+	*(int32_t *)dp = d->size == 1 ? (int32_t)*(int8_t *)dp :
+					(int32_t)*(int16_t *)dp;
+    }
+#if LJ_TARGET_ARM64 && LJ_BE
+    if (isfp && d->size == sizeof(float))
+      ((float *)dp)[1] = ((float *)dp)[0];  /* Floats occupy high slot. */
+#endif
+#if LJ_TARGET_MIPS64 || (LJ_TARGET_ARM64 && LJ_BE)
+    if ((ctype_isinteger_or_bool(d->info) || ctype_isenum(d->info)
+#if LJ_TARGET_MIPS64
+	 || (isfp && nsp == 0)
+#endif
+	 ) && d->size <= 4) {
+      *(int64_t *)dp = (int64_t)*(int32_t *)dp;  /* Sign-extend to 64 bit. */
+    }
+#endif
+#if LJ_TARGET_X64 && LJ_ABI_WIN
+    if (isva) {  /* Windows/x64 mirrors varargs in both register sets. */
+      if (nfpr == ngpr)
+	cc->gpr[ngpr-1] = cc->fpr[ngpr-1].l[0];
+      else
+	cc->fpr[ngpr-1].l[0] = cc->gpr[ngpr-1];
+    }
+#else
+    UNUSED(isva);
+#endif
+#if LJ_TARGET_X64 && !LJ_ABI_WIN
+    if (isfp == 2 && n == 2 && (uint8_t *)dp == (uint8_t *)&cc->fpr[nfpr-2]) {
+      cc->fpr[nfpr-1].d[0] = cc->fpr[nfpr-2].d[1];  /* Split complex double. */
+      cc->fpr[nfpr-2].d[1] = 0;
+    }
+#elif LJ_TARGET_ARM64 || (LJ_TARGET_MIPS64 && !LJ_ABI_SOFTFP)
+    if (isfp == 2 && (uint8_t *)dp < (uint8_t *)cc->stack) {
+      /* Split float HFA or complex float into separate registers. */
+      CTSize i = (sz >> 2) - 1;
+      do { ((uint64_t *)dp)[i] = ((uint32_t *)dp)[i]; } while (i--);
+    }
+#else
+    UNUSED(isfp);
+#endif
+  }
+  if (fid) lj_err_caller(L, LJ_ERR_FFI_NUMARG);  /* Too few arguments. */
+
+#if LJ_TARGET_X64 || (LJ_TARGET_PPC && !LJ_ABI_SOFTFP)
+  cc->nfpr = nfpr;  /* Required for vararg functions. */
+#endif
+  cc->nsp = nsp;
+  cc->spadj = (CCALL_SPS_FREE + CCALL_SPS_EXTRA)*CTSIZE_PTR;
+  if (nsp > CCALL_SPS_FREE)
+    cc->spadj += (((nsp-CCALL_SPS_FREE)*CTSIZE_PTR + 15u) & ~15u);
+  return gcsteps;
+}
+
+/* Get results from C call. */
+static int ccall_get_results(lua_State *L, CTState *cts, CType *ct,
+			     CCallState *cc, int *ret)
+{
+  CType *ctr = ctype_rawchild(cts, ct);
+  uint8_t *sp = (uint8_t *)&cc->gpr[0];
+  if (ctype_isvoid(ctr->info)) {
+    *ret = 0;  /* Zero results. */
+    return 0;  /* No additional GC step. */
+  }
+  *ret = 1;  /* One result. */
+  if (ctype_isstruct(ctr->info)) {
+    /* Return cdata object which is already on top of stack. */
+    if (!cc->retref) {
+      void *dp = cdataptr(cdataV(L->top-1));  /* Use preallocated object. */
+      CCALL_HANDLE_STRUCTRET2
+    }
+    return 1;  /* One GC step. */
+  }
+  if (ctype_iscomplex(ctr->info)) {
+    /* Return cdata object which is already on top of stack. */
+    void *dp = cdataptr(cdataV(L->top-1));  /* Use preallocated object. */
+    CCALL_HANDLE_COMPLEXRET2
+    return 1;  /* One GC step. */
+  }
+  if (LJ_BE && ctr->size < CTSIZE_PTR &&
+      (ctype_isinteger_or_bool(ctr->info) || ctype_isenum(ctr->info)))
+    sp += (CTSIZE_PTR - ctr->size);
+#if CCALL_NUM_FPR
+  if (ctype_isfp(ctr->info) || ctype_isvector(ctr->info))
+    sp = (uint8_t *)&cc->fpr[0];
+#endif
+#ifdef CCALL_HANDLE_RET
+  CCALL_HANDLE_RET
+#endif
+  /* No reference types end up here, so there's no need for the CTypeID. */
+  lj_assertL(!(ctype_isrefarray(ctr->info) || ctype_isstruct(ctr->info)),
+	     "unexpected reference ctype");
+  return lj_cconv_tv_ct(cts, ctr, 0, L->top-1, sp);
+}
+
+/* Call C function. */
+int lj_ccall_func(lua_State *L, GCcdata *cd)
+{
+  CTState *cts = ctype_cts(L);
+  CType *ct = ctype_raw(cts, cd->ctypeid);
+  CTSize sz = CTSIZE_PTR;
+  if (ctype_isptr(ct->info)) {
+    sz = ct->size;
+    ct = ctype_rawchild(cts, ct);
+  }
+  if (ctype_isfunc(ct->info)) {
+    CCallState cc;
+    int gcsteps, ret;
+    cc.func = (void (*)(void))cdata_getptr(cdataptr(cd), sz);
+    gcsteps = ccall_set_args(L, cts, ct, &cc);
+    ct = (CType *)((intptr_t)ct-(intptr_t)cts->tab);
+    cts->cb.slot = ~0u;
+    lj_vm_ffi_call(&cc);
+    if (cts->cb.slot != ~0u) {  /* Blacklist function that called a callback. */
+      TValue tv;
+      tv.u64 = ((uintptr_t)(void *)cc.func >> 2) | U64x(800000000, 00000000);
+      setboolV(lj_tab_set(L, cts->miscmap, &tv), 1);
+    }
+    ct = (CType *)((intptr_t)ct+(intptr_t)cts->tab);  /* May be reallocated. */
+    gcsteps += ccall_get_results(L, cts, ct, &cc, &ret);
+#if LJ_TARGET_X86 && LJ_ABI_WIN
+    /* Automatically detect __stdcall and fix up C function declaration. */
+    if (cc.spadj && ctype_cconv(ct->info) == CTCC_CDECL) {
+      CTF_INSERT(ct->info, CCONV, CTCC_STDCALL);
+      lj_trace_abort(G(L));
+    }
+#endif
+    while (gcsteps-- > 0)
+      lj_gc_check(L);
+    return ret;
+  }
+  return -1;  /* Not a function. */
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_ccall.h b/libs/luajit-cmake/luajit/src/lj_ccall.h
new file mode 100644
index 0000000..0b3c524
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_ccall.h
@@ -0,0 +1,194 @@
+/*
+** FFI C call handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CCALL_H
+#define _LJ_CCALL_H
+
+#include "lj_obj.h"
+#include "lj_ctype.h"
+
+#if LJ_HASFFI
+
+/* -- C calling conventions ----------------------------------------------- */
+
+#if LJ_TARGET_X86ORX64
+
+#if LJ_TARGET_X86
+#define CCALL_NARG_GPR		2	/* For fastcall arguments. */
+#define CCALL_NARG_FPR		0
+#define CCALL_NRET_GPR		2
+#define CCALL_NRET_FPR		1	/* For FP results on x87 stack. */
+#define CCALL_ALIGN_STACKARG	0	/* Don't align argument on stack. */
+#elif LJ_ABI_WIN
+#define CCALL_NARG_GPR		4
+#define CCALL_NARG_FPR		4
+#define CCALL_NRET_GPR		1
+#define CCALL_NRET_FPR		1
+#define CCALL_SPS_EXTRA		4
+#else
+#define CCALL_NARG_GPR		6
+#define CCALL_NARG_FPR		8
+#define CCALL_NRET_GPR		2
+#define CCALL_NRET_FPR		2
+#define CCALL_VECTOR_REG	1	/* Pass vectors in registers. */
+#endif
+
+#define CCALL_SPS_FREE		1
+#define CCALL_ALIGN_CALLSTATE	16
+
+typedef LJ_ALIGN(16) union FPRArg {
+  double d[2];
+  float f[4];
+  uint8_t b[16];
+  uint16_t s[8];
+  int i[4];
+  int64_t l[2];
+} FPRArg;
+
+typedef intptr_t GPRArg;
+
+#elif LJ_TARGET_ARM
+
+#define CCALL_NARG_GPR		4
+#define CCALL_NRET_GPR		2	/* For softfp double. */
+#if LJ_ABI_SOFTFP
+#define CCALL_NARG_FPR		0
+#define CCALL_NRET_FPR		0
+#else
+#define CCALL_NARG_FPR		8
+#define CCALL_NRET_FPR		4
+#endif
+#define CCALL_SPS_FREE		0
+
+typedef intptr_t GPRArg;
+typedef union FPRArg {
+  double d;
+  float f[2];
+} FPRArg;
+
+#elif LJ_TARGET_ARM64
+
+#define CCALL_NARG_GPR		8
+#define CCALL_NRET_GPR		2
+#define CCALL_NARG_FPR		8
+#define CCALL_NRET_FPR		4
+#define CCALL_SPS_FREE		0
+
+typedef intptr_t GPRArg;
+typedef union FPRArg {
+  double d;
+  struct { LJ_ENDIAN_LOHI(float f; , float g;) };
+  struct { LJ_ENDIAN_LOHI(uint32_t lo; , uint32_t hi;) };
+} FPRArg;
+
+#elif LJ_TARGET_PPC
+
+#define CCALL_NARG_GPR		8
+#define CCALL_NARG_FPR		(LJ_ABI_SOFTFP ? 0 : 8)
+#define CCALL_NRET_GPR		4	/* For complex double. */
+#define CCALL_NRET_FPR		(LJ_ABI_SOFTFP ? 0 : 1)
+#define CCALL_SPS_EXTRA		4
+#define CCALL_SPS_FREE		0
+
+typedef intptr_t GPRArg;
+typedef double FPRArg;
+
+#elif LJ_TARGET_MIPS32
+
+#define CCALL_NARG_GPR		4
+#define CCALL_NARG_FPR		(LJ_ABI_SOFTFP ? 0 : 2)
+#define CCALL_NRET_GPR		(LJ_ABI_SOFTFP ? 4 : 2)
+#define CCALL_NRET_FPR		(LJ_ABI_SOFTFP ? 0 : 2)
+#define CCALL_SPS_EXTRA		7
+#define CCALL_SPS_FREE		1
+
+typedef intptr_t GPRArg;
+typedef union FPRArg {
+  double d;
+  struct { LJ_ENDIAN_LOHI(float f; , float g;) };
+} FPRArg;
+
+#elif LJ_TARGET_MIPS64
+
+/* FP args are positional and overlay the GPR array. */
+#define CCALL_NARG_GPR		8
+#define CCALL_NARG_FPR		0
+#define CCALL_NRET_GPR		2
+#define CCALL_NRET_FPR		(LJ_ABI_SOFTFP ? 0 : 2)
+#define CCALL_SPS_EXTRA		3
+#define CCALL_SPS_FREE		1
+
+typedef intptr_t GPRArg;
+typedef union FPRArg {
+  double d;
+  struct { LJ_ENDIAN_LOHI(float f; , float g;) };
+} FPRArg;
+
+#else
+#error "Missing calling convention definitions for this architecture"
+#endif
+
+#ifndef CCALL_SPS_EXTRA
+#define CCALL_SPS_EXTRA		0
+#endif
+#ifndef CCALL_VECTOR_REG
+#define CCALL_VECTOR_REG	0
+#endif
+#ifndef CCALL_ALIGN_STACKARG
+#define CCALL_ALIGN_STACKARG	1
+#endif
+#ifndef CCALL_ALIGN_CALLSTATE
+#define CCALL_ALIGN_CALLSTATE	8
+#endif
+
+#define CCALL_NUM_GPR \
+  (CCALL_NARG_GPR > CCALL_NRET_GPR ? CCALL_NARG_GPR : CCALL_NRET_GPR)
+#define CCALL_NUM_FPR \
+  (CCALL_NARG_FPR > CCALL_NRET_FPR ? CCALL_NARG_FPR : CCALL_NRET_FPR)
+
+/* Check against constants in lj_ctype.h. */
+LJ_STATIC_ASSERT(CCALL_NUM_GPR <= CCALL_MAX_GPR);
+LJ_STATIC_ASSERT(CCALL_NUM_FPR <= CCALL_MAX_FPR);
+
+#define CCALL_MAXSTACK		32
+
+/* -- C call state -------------------------------------------------------- */
+
+typedef LJ_ALIGN(CCALL_ALIGN_CALLSTATE) struct CCallState {
+  void (*func)(void);		/* Pointer to called function. */
+  uint32_t spadj;		/* Stack pointer adjustment. */
+  uint8_t nsp;			/* Number of stack slots. */
+  uint8_t retref;		/* Return value by reference. */
+#if LJ_TARGET_X64
+  uint8_t ngpr;			/* Number of arguments in GPRs. */
+  uint8_t nfpr;			/* Number of arguments in FPRs. */
+#elif LJ_TARGET_X86
+  uint8_t resx87;		/* Result on x87 stack: 1:float, 2:double. */
+#elif LJ_TARGET_ARM64
+  void *retp;			/* Aggregate return pointer in x8. */
+#elif LJ_TARGET_PPC
+  uint8_t nfpr;			/* Number of arguments in FPRs. */
+#endif
+#if LJ_32
+  int32_t align1;
+#endif
+#if CCALL_NUM_FPR
+  FPRArg fpr[CCALL_NUM_FPR];	/* Arguments/results in FPRs. */
+#endif
+  GPRArg gpr[CCALL_NUM_GPR];	/* Arguments/results in GPRs. */
+  GPRArg stack[CCALL_MAXSTACK];	/* Stack slots. */
+} CCallState;
+
+/* -- C call handling ----------------------------------------------------- */
+
+/* Really belongs to lj_vm.h. */
+LJ_ASMF void LJ_FASTCALL lj_vm_ffi_call(CCallState *cc);
+
+LJ_FUNC CTypeID lj_ccall_ctid_vararg(CTState *cts, cTValue *o);
+LJ_FUNC int lj_ccall_func(lua_State *L, GCcdata *cd);
+
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_ccallback.c b/libs/luajit-cmake/luajit/src/lj_ccallback.c
new file mode 100644
index 0000000..43e4430
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_ccallback.c
@@ -0,0 +1,796 @@
+/*
+** FFI C callback handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_tab.h"
+#include "lj_state.h"
+#include "lj_frame.h"
+#include "lj_ctype.h"
+#include "lj_cconv.h"
+#include "lj_ccall.h"
+#include "lj_ccallback.h"
+#include "lj_target.h"
+#include "lj_mcode.h"
+#include "lj_trace.h"
+#include "lj_vm.h"
+
+/* -- Target-specific handling of callback slots -------------------------- */
+
+#define CALLBACK_MCODE_SIZE	(LJ_PAGESIZE * LJ_NUM_CBPAGE)
+
+#if LJ_OS_NOJIT
+
+/* Callbacks disabled. */
+#define CALLBACK_SLOT2OFS(slot)	(0*(slot))
+#define CALLBACK_OFS2SLOT(ofs)	(0*(ofs))
+#define CALLBACK_MAX_SLOT	0
+
+#elif LJ_TARGET_X86ORX64
+
+#define CALLBACK_MCODE_HEAD	(LJ_64 ? 8 : 0)
+#define CALLBACK_MCODE_GROUP	(-2+1+2+(LJ_GC64 ? 10 : 5)+(LJ_64 ? 6 : 5))
+
+#define CALLBACK_SLOT2OFS(slot) \
+  (CALLBACK_MCODE_HEAD + CALLBACK_MCODE_GROUP*((slot)/32) + 4*(slot))
+
+static MSize CALLBACK_OFS2SLOT(MSize ofs)
+{
+  MSize group;
+  ofs -= CALLBACK_MCODE_HEAD;
+  group = ofs / (32*4 + CALLBACK_MCODE_GROUP);
+  return (ofs % (32*4 + CALLBACK_MCODE_GROUP))/4 + group*32;
+}
+
+#define CALLBACK_MAX_SLOT \
+  (((CALLBACK_MCODE_SIZE-CALLBACK_MCODE_HEAD)/(CALLBACK_MCODE_GROUP+4*32))*32)
+
+#elif LJ_TARGET_ARM
+
+#define CALLBACK_MCODE_HEAD		32
+
+#elif LJ_TARGET_ARM64
+
+#define CALLBACK_MCODE_HEAD		32
+
+#elif LJ_TARGET_PPC
+
+#define CALLBACK_MCODE_HEAD		24
+
+#elif LJ_TARGET_MIPS32
+
+#define CALLBACK_MCODE_HEAD		20
+
+#elif LJ_TARGET_MIPS64
+
+#define CALLBACK_MCODE_HEAD		52
+
+#else
+
+/* Missing support for this architecture. */
+#define CALLBACK_SLOT2OFS(slot)	(0*(slot))
+#define CALLBACK_OFS2SLOT(ofs)	(0*(ofs))
+#define CALLBACK_MAX_SLOT	0
+
+#endif
+
+#ifndef CALLBACK_SLOT2OFS
+#define CALLBACK_SLOT2OFS(slot)		(CALLBACK_MCODE_HEAD + 8*(slot))
+#define CALLBACK_OFS2SLOT(ofs)		(((ofs)-CALLBACK_MCODE_HEAD)/8)
+#define CALLBACK_MAX_SLOT		(CALLBACK_OFS2SLOT(CALLBACK_MCODE_SIZE))
+#endif
+
+/* Convert callback slot number to callback function pointer. */
+static void *callback_slot2ptr(CTState *cts, MSize slot)
+{
+  return (uint8_t *)cts->cb.mcode + CALLBACK_SLOT2OFS(slot);
+}
+
+/* Convert callback function pointer to slot number. */
+MSize lj_ccallback_ptr2slot(CTState *cts, void *p)
+{
+  uintptr_t ofs = (uintptr_t)((uint8_t *)p -(uint8_t *)cts->cb.mcode);
+  if (ofs < CALLBACK_MCODE_SIZE) {
+    MSize slot = CALLBACK_OFS2SLOT((MSize)ofs);
+    if (CALLBACK_SLOT2OFS(slot) == (MSize)ofs)
+      return slot;
+  }
+  return ~0u;  /* Not a known callback function pointer. */
+}
+
+/* Initialize machine code for callback function pointers. */
+#if LJ_OS_NOJIT
+/* Disabled callback support. */
+#define callback_mcode_init(g, p)	(p)
+#elif LJ_TARGET_X86ORX64
+static void *callback_mcode_init(global_State *g, uint8_t *page)
+{
+  uint8_t *p = page;
+  uint8_t *target = (uint8_t *)(void *)lj_vm_ffi_callback;
+  MSize slot;
+#if LJ_64
+  *(void **)p = target; p += 8;
+#endif
+  for (slot = 0; slot < CALLBACK_MAX_SLOT; slot++) {
+    /* mov al, slot; jmp group */
+    *p++ = XI_MOVrib | RID_EAX; *p++ = (uint8_t)slot;
+    if ((slot & 31) == 31 || slot == CALLBACK_MAX_SLOT-1) {
+      /* push ebp/rbp; mov ah, slot>>8; mov ebp, &g. */
+      *p++ = XI_PUSH + RID_EBP;
+      *p++ = XI_MOVrib | (RID_EAX+4); *p++ = (uint8_t)(slot >> 8);
+#if LJ_GC64
+      *p++ = 0x48; *p++ = XI_MOVri | RID_EBP;
+      *(uint64_t *)p = (uint64_t)(g); p += 8;
+#else
+      *p++ = XI_MOVri | RID_EBP;
+      *(int32_t *)p = i32ptr(g); p += 4;
+#endif
+#if LJ_64
+      /* jmp [rip-pageofs] where lj_vm_ffi_callback is stored. */
+      *p++ = XI_GROUP5; *p++ = XM_OFS0 + (XOg_JMP<<3) + RID_EBP;
+      *(int32_t *)p = (int32_t)(page-(p+4)); p += 4;
+#else
+      /* jmp lj_vm_ffi_callback. */
+      *p++ = XI_JMP; *(int32_t *)p = target-(p+4); p += 4;
+#endif
+    } else {
+      *p++ = XI_JMPs; *p++ = (uint8_t)((2+2)*(31-(slot&31)) - 2);
+    }
+  }
+  return p;
+}
+#elif LJ_TARGET_ARM
+static void *callback_mcode_init(global_State *g, uint32_t *page)
+{
+  uint32_t *p = page;
+  void *target = (void *)lj_vm_ffi_callback;
+  MSize slot;
+  /* This must match with the saveregs macro in buildvm_arm.dasc. */
+  *p++ = ARMI_SUB|ARMF_D(RID_R12)|ARMF_N(RID_R12)|ARMF_M(RID_PC);
+  *p++ = ARMI_PUSH|ARMF_N(RID_SP)|RSET_RANGE(RID_R4,RID_R11+1)|RID2RSET(RID_LR);
+  *p++ = ARMI_SUB|ARMI_K12|ARMF_D(RID_R12)|ARMF_N(RID_R12)|CALLBACK_MCODE_HEAD;
+  *p++ = ARMI_STR|ARMI_LS_P|ARMI_LS_W|ARMF_D(RID_R12)|ARMF_N(RID_SP)|(CFRAME_SIZE-4*9);
+  *p++ = ARMI_LDR|ARMI_LS_P|ARMI_LS_U|ARMF_D(RID_R12)|ARMF_N(RID_PC);
+  *p++ = ARMI_LDR|ARMI_LS_P|ARMI_LS_U|ARMF_D(RID_PC)|ARMF_N(RID_PC);
+  *p++ = u32ptr(g);
+  *p++ = u32ptr(target);
+  for (slot = 0; slot < CALLBACK_MAX_SLOT; slot++) {
+    *p++ = ARMI_MOV|ARMF_D(RID_R12)|ARMF_M(RID_PC);
+    *p = ARMI_B | ((page-p-2) & 0x00ffffffu);
+    p++;
+  }
+  return p;
+}
+#elif LJ_TARGET_ARM64
+static void *callback_mcode_init(global_State *g, uint32_t *page)
+{
+  uint32_t *p = page;
+  void *target = (void *)lj_vm_ffi_callback;
+  MSize slot;
+  *p++ = A64I_LE(A64I_LDRLx | A64F_D(RID_X11) | A64F_S19(4));
+  *p++ = A64I_LE(A64I_LDRLx | A64F_D(RID_X10) | A64F_S19(5));
+  *p++ = A64I_LE(A64I_BR | A64F_N(RID_X11));
+  *p++ = A64I_LE(A64I_NOP);
+  ((void **)p)[0] = target;
+  ((void **)p)[1] = g;
+  p += 4;
+  for (slot = 0; slot < CALLBACK_MAX_SLOT; slot++) {
+    *p++ = A64I_LE(A64I_MOVZw | A64F_D(RID_X9) | A64F_U16(slot));
+    *p = A64I_LE(A64I_B | A64F_S26((page-p) & 0x03ffffffu));
+    p++;
+  }
+  return p;
+}
+#elif LJ_TARGET_PPC
+static void *callback_mcode_init(global_State *g, uint32_t *page)
+{
+  uint32_t *p = page;
+  void *target = (void *)lj_vm_ffi_callback;
+  MSize slot;
+  *p++ = PPCI_LIS | PPCF_T(RID_TMP) | (u32ptr(target) >> 16);
+  *p++ = PPCI_LIS | PPCF_T(RID_R12) | (u32ptr(g) >> 16);
+  *p++ = PPCI_ORI | PPCF_A(RID_TMP)|PPCF_T(RID_TMP) | (u32ptr(target) & 0xffff);
+  *p++ = PPCI_ORI | PPCF_A(RID_R12)|PPCF_T(RID_R12) | (u32ptr(g) & 0xffff);
+  *p++ = PPCI_MTCTR | PPCF_T(RID_TMP);
+  *p++ = PPCI_BCTR;
+  for (slot = 0; slot < CALLBACK_MAX_SLOT; slot++) {
+    *p++ = PPCI_LI | PPCF_T(RID_R11) | slot;
+    *p = PPCI_B | (((page-p) & 0x00ffffffu) << 2);
+    p++;
+  }
+  return p;
+}
+#elif LJ_TARGET_MIPS
+static void *callback_mcode_init(global_State *g, uint32_t *page)
+{
+  uint32_t *p = page;
+  uintptr_t target = (uintptr_t)(void *)lj_vm_ffi_callback;
+  uintptr_t ug = (uintptr_t)(void *)g;
+  MSize slot;
+#if LJ_TARGET_MIPS32
+  *p++ = MIPSI_LUI | MIPSF_T(RID_R3) | (target >> 16);
+  *p++ = MIPSI_LUI | MIPSF_T(RID_R2) | (ug >> 16);
+#else
+  *p++ = MIPSI_LUI  | MIPSF_T(RID_R3) | (target >> 48);
+  *p++ = MIPSI_LUI  | MIPSF_T(RID_R2) | (ug >> 48);
+  *p++ = MIPSI_ORI  | MIPSF_T(RID_R3)|MIPSF_S(RID_R3) | ((target >> 32) & 0xffff);
+  *p++ = MIPSI_ORI  | MIPSF_T(RID_R2)|MIPSF_S(RID_R2) | ((ug >> 32) & 0xffff);
+  *p++ = MIPSI_DSLL | MIPSF_D(RID_R3)|MIPSF_T(RID_R3) | MIPSF_A(16);
+  *p++ = MIPSI_DSLL | MIPSF_D(RID_R2)|MIPSF_T(RID_R2) | MIPSF_A(16);
+  *p++ = MIPSI_ORI  | MIPSF_T(RID_R3)|MIPSF_S(RID_R3) | ((target >> 16) & 0xffff);
+  *p++ = MIPSI_ORI  | MIPSF_T(RID_R2)|MIPSF_S(RID_R2) | ((ug >> 16) & 0xffff);
+  *p++ = MIPSI_DSLL | MIPSF_D(RID_R3)|MIPSF_T(RID_R3) | MIPSF_A(16);
+  *p++ = MIPSI_DSLL | MIPSF_D(RID_R2)|MIPSF_T(RID_R2) | MIPSF_A(16);
+#endif
+  *p++ = MIPSI_ORI  | MIPSF_T(RID_R3)|MIPSF_S(RID_R3) | (target & 0xffff);
+  *p++ = MIPSI_JR | MIPSF_S(RID_R3);
+  *p++ = MIPSI_ORI | MIPSF_T(RID_R2)|MIPSF_S(RID_R2) | (ug & 0xffff);
+  for (slot = 0; slot < CALLBACK_MAX_SLOT; slot++) {
+    *p = MIPSI_B | ((page-p-1) & 0x0000ffffu);
+    p++;
+    *p++ = MIPSI_LI | MIPSF_T(RID_R1) | slot;
+  }
+  return p;
+}
+#else
+/* Missing support for this architecture. */
+#define callback_mcode_init(g, p)	(p)
+#endif
+
+/* -- Machine code management --------------------------------------------- */
+
+#if LJ_TARGET_WINDOWS
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#elif LJ_TARGET_POSIX
+
+#include <sys/mman.h>
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS   MAP_ANON
+#endif
+#ifdef PROT_MPROTECT
+#define CCPROT_CREATE	(PROT_MPROTECT(PROT_EXEC))
+#else
+#define CCPROT_CREATE	0
+#endif
+
+#endif
+
+/* Allocate and initialize area for callback function pointers. */
+static void callback_mcode_new(CTState *cts)
+{
+  size_t sz = (size_t)CALLBACK_MCODE_SIZE;
+  void *p, *pe;
+  if (CALLBACK_MAX_SLOT == 0)
+    lj_err_caller(cts->L, LJ_ERR_FFI_CBACKOV);
+#if LJ_TARGET_WINDOWS
+  p = LJ_WIN_VALLOC(NULL, sz, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE);
+  if (!p)
+    lj_err_caller(cts->L, LJ_ERR_FFI_CBACKOV);
+#elif LJ_TARGET_POSIX
+  p = mmap(NULL, sz, (PROT_READ|PROT_WRITE|CCPROT_CREATE), MAP_PRIVATE|MAP_ANONYMOUS,
+	   -1, 0);
+  if (p == MAP_FAILED)
+    lj_err_caller(cts->L, LJ_ERR_FFI_CBACKOV);
+#else
+  /* Fallback allocator. Fails if memory is not executable by default. */
+  p = lj_mem_new(cts->L, sz);
+#endif
+  cts->cb.mcode = p;
+  pe = callback_mcode_init(cts->g, p);
+  UNUSED(pe);
+  lj_assertCTS((size_t)((char *)pe - (char *)p) <= sz,
+	       "miscalculated CALLBACK_MAX_SLOT");
+  lj_mcode_sync(p, (char *)p + sz);
+#if LJ_TARGET_WINDOWS
+  {
+    DWORD oprot;
+    LJ_WIN_VPROTECT(p, sz, PAGE_EXECUTE_READ, &oprot);
+  }
+#elif LJ_TARGET_POSIX
+  mprotect(p, sz, (PROT_READ|PROT_EXEC));
+#endif
+}
+
+/* Free area for callback function pointers. */
+void lj_ccallback_mcode_free(CTState *cts)
+{
+  size_t sz = (size_t)CALLBACK_MCODE_SIZE;
+  void *p = cts->cb.mcode;
+  if (p == NULL) return;
+#if LJ_TARGET_WINDOWS
+  VirtualFree(p, 0, MEM_RELEASE);
+  UNUSED(sz);
+#elif LJ_TARGET_POSIX
+  munmap(p, sz);
+#else
+  lj_mem_free(cts->g, p, sz);
+#endif
+}
+
+/* -- C callback entry ---------------------------------------------------- */
+
+/* Target-specific handling of register arguments. Similar to lj_ccall.c. */
+#if LJ_TARGET_X86
+
+#define CALLBACK_HANDLE_REGARG \
+  if (!isfp) {  /* Only non-FP values may be passed in registers. */ \
+    if (n > 1) {  /* Anything > 32 bit is passed on the stack. */ \
+      if (!LJ_ABI_WIN) ngpr = maxgpr;  /* Prevent reordering. */ \
+    } else if (ngpr + 1 <= maxgpr) { \
+      sp = &cts->cb.gpr[ngpr]; \
+      ngpr += n; \
+      goto done; \
+    } \
+  }
+
+#elif LJ_TARGET_X64 && LJ_ABI_WIN
+
+/* Windows/x64 argument registers are strictly positional (use ngpr). */
+#define CALLBACK_HANDLE_REGARG \
+  if (isfp) { \
+    if (ngpr < maxgpr) { sp = &cts->cb.fpr[ngpr++]; UNUSED(nfpr); goto done; } \
+  } else { \
+    if (ngpr < maxgpr) { sp = &cts->cb.gpr[ngpr++]; goto done; } \
+  }
+
+#elif LJ_TARGET_X64
+
+#define CALLBACK_HANDLE_REGARG \
+  if (isfp) { \
+    if (nfpr + n <= CCALL_NARG_FPR) { \
+      sp = &cts->cb.fpr[nfpr]; \
+      nfpr += n; \
+      goto done; \
+    } \
+  } else { \
+    if (ngpr + n <= maxgpr) { \
+      sp = &cts->cb.gpr[ngpr]; \
+      ngpr += n; \
+      goto done; \
+    } \
+  }
+
+#elif LJ_TARGET_ARM
+
+#if LJ_ABI_SOFTFP
+
+#define CALLBACK_HANDLE_REGARG_FP1	UNUSED(isfp);
+#define CALLBACK_HANDLE_REGARG_FP2
+
+#else
+
+#define CALLBACK_HANDLE_REGARG_FP1 \
+  if (isfp) { \
+    if (n == 1) { \
+      if (fprodd) { \
+	sp = &cts->cb.fpr[fprodd-1]; \
+	fprodd = 0; \
+	goto done; \
+      } else if (nfpr + 1 <= CCALL_NARG_FPR) { \
+	sp = &cts->cb.fpr[nfpr++]; \
+	fprodd = nfpr; \
+	goto done; \
+      } \
+    } else { \
+      if (nfpr + 1 <= CCALL_NARG_FPR) { \
+	sp = &cts->cb.fpr[nfpr++]; \
+	goto done; \
+      } \
+    } \
+    fprodd = 0;  /* No reordering after the first FP value is on stack. */ \
+  } else {
+
+#define CALLBACK_HANDLE_REGARG_FP2	}
+
+#endif
+
+#define CALLBACK_HANDLE_REGARG \
+  CALLBACK_HANDLE_REGARG_FP1 \
+  if (n > 1) ngpr = (ngpr + 1u) & ~1u;  /* Align to regpair. */ \
+  if (ngpr + n <= maxgpr) { \
+    sp = &cts->cb.gpr[ngpr]; \
+    ngpr += n; \
+    goto done; \
+  } CALLBACK_HANDLE_REGARG_FP2
+
+#elif LJ_TARGET_ARM64
+
+#define CALLBACK_HANDLE_REGARG \
+  if (isfp) { \
+    if (nfpr + n <= CCALL_NARG_FPR) { \
+      sp = &cts->cb.fpr[nfpr]; \
+      nfpr += n; \
+      goto done; \
+    } else { \
+      nfpr = CCALL_NARG_FPR;  /* Prevent reordering. */ \
+    } \
+  } else { \
+    if (!LJ_TARGET_OSX && n > 1) \
+      ngpr = (ngpr + 1u) & ~1u;  /* Align to regpair. */ \
+    if (ngpr + n <= maxgpr) { \
+      sp = &cts->cb.gpr[ngpr]; \
+      ngpr += n; \
+      goto done; \
+    } else { \
+      ngpr = CCALL_NARG_GPR;  /* Prevent reordering. */ \
+    } \
+  }
+
+#elif LJ_TARGET_PPC
+
+#define CALLBACK_HANDLE_GPR \
+  if (n > 1) { \
+    lj_assertCTS(((LJ_ABI_SOFTFP && ctype_isnum(cta->info)) ||  /* double. */ \
+		 ctype_isinteger(cta->info)) && n == 2,  /* int64_t. */ \
+		 "bad GPR type"); \
+    ngpr = (ngpr + 1u) & ~1u;  /* Align int64_t to regpair. */ \
+  } \
+  if (ngpr + n <= maxgpr) { \
+    sp = &cts->cb.gpr[ngpr]; \
+    ngpr += n; \
+    goto done; \
+  }
+
+#if LJ_ABI_SOFTFP
+#define CALLBACK_HANDLE_REGARG \
+  CALLBACK_HANDLE_GPR \
+  UNUSED(isfp);
+#else
+#define CALLBACK_HANDLE_REGARG \
+  if (isfp) { \
+    if (nfpr + 1 <= CCALL_NARG_FPR) { \
+      sp = &cts->cb.fpr[nfpr++]; \
+      cta = ctype_get(cts, CTID_DOUBLE);  /* FPRs always hold doubles. */ \
+      goto done; \
+    } \
+  } else {  /* Try to pass argument in GPRs. */ \
+    CALLBACK_HANDLE_GPR \
+  }
+#endif
+
+#if !LJ_ABI_SOFTFP
+#define CALLBACK_HANDLE_RET \
+  if (ctype_isfp(ctr->info) && ctr->size == sizeof(float)) \
+    *(double *)dp = *(float *)dp;  /* FPRs always hold doubles. */
+#endif
+
+#elif LJ_TARGET_MIPS32
+
+#define CALLBACK_HANDLE_GPR \
+  if (n > 1) ngpr = (ngpr + 1u) & ~1u;  /* Align to regpair. */ \
+  if (ngpr + n <= maxgpr) { \
+    sp = &cts->cb.gpr[ngpr]; \
+    ngpr += n; \
+    goto done; \
+  }
+
+#if !LJ_ABI_SOFTFP	/* MIPS32 hard-float */
+#define CALLBACK_HANDLE_REGARG \
+  if (isfp && nfpr < CCALL_NARG_FPR) {  /* Try to pass argument in FPRs. */ \
+    sp = (void *)((uint8_t *)&cts->cb.fpr[nfpr] + ((LJ_BE && n==1) ? 4 : 0)); \
+    nfpr++; ngpr += n; \
+    goto done; \
+  } else {  /* Try to pass argument in GPRs. */ \
+    nfpr = CCALL_NARG_FPR; \
+    CALLBACK_HANDLE_GPR \
+  }
+#else			/* MIPS32 soft-float */
+#define CALLBACK_HANDLE_REGARG \
+  CALLBACK_HANDLE_GPR \
+  UNUSED(isfp);
+#endif
+
+#define CALLBACK_HANDLE_RET \
+  if (ctype_isfp(ctr->info) && ctr->size == sizeof(float)) \
+    ((float *)dp)[1] = *(float *)dp;
+
+#elif LJ_TARGET_MIPS64
+
+#if !LJ_ABI_SOFTFP	/* MIPS64 hard-float */
+#define CALLBACK_HANDLE_REGARG \
+  if (ngpr + n <= maxgpr) { \
+    sp = isfp ? (void*) &cts->cb.fpr[ngpr] : (void*) &cts->cb.gpr[ngpr]; \
+    ngpr += n; \
+    goto done; \
+  }
+#else			/* MIPS64 soft-float */
+#define CALLBACK_HANDLE_REGARG \
+  if (ngpr + n <= maxgpr) { \
+    UNUSED(isfp); \
+    sp = (void*) &cts->cb.gpr[ngpr]; \
+    ngpr += n; \
+    goto done; \
+  }
+#endif
+
+#define CALLBACK_HANDLE_RET \
+  if (ctype_isfp(ctr->info) && ctr->size == sizeof(float)) \
+    ((float *)dp)[1] = *(float *)dp;
+
+#else
+#error "Missing calling convention definitions for this architecture"
+#endif
+
+/* Convert and push callback arguments to Lua stack. */
+static void callback_conv_args(CTState *cts, lua_State *L)
+{
+  TValue *o = L->top;
+  intptr_t *stack = cts->cb.stack;
+  MSize slot = cts->cb.slot;
+  CTypeID id = 0, rid, fid;
+  int gcsteps = 0;
+  CType *ct;
+  GCfunc *fn;
+  int fntp;
+  MSize ngpr = 0, nsp = 0, maxgpr = CCALL_NARG_GPR;
+#if CCALL_NARG_FPR
+  MSize nfpr = 0;
+#if LJ_TARGET_ARM
+  MSize fprodd = 0;
+#endif
+#endif
+
+  if (slot < cts->cb.sizeid && (id = cts->cb.cbid[slot]) != 0) {
+    ct = ctype_get(cts, id);
+    rid = ctype_cid(ct->info);  /* Return type. x86: +(spadj<<16). */
+    fn = funcV(lj_tab_getint(cts->miscmap, (int32_t)slot));
+    fntp = LJ_TFUNC;
+  } else {  /* Must set up frame first, before throwing the error. */
+    ct = NULL;
+    rid = 0;
+    fn = (GCfunc *)L;
+    fntp = LJ_TTHREAD;
+  }
+  /* Continuation returns from callback. */
+  if (LJ_FR2) {
+    (o++)->u64 = LJ_CONT_FFI_CALLBACK;
+    (o++)->u64 = rid;
+  } else {
+    o->u32.lo = LJ_CONT_FFI_CALLBACK;
+    o->u32.hi = rid;
+    o++;
+  }
+  setframe_gc(o, obj2gco(fn), fntp);
+  if (LJ_FR2) o++;
+  setframe_ftsz(o, ((char *)(o+1) - (char *)L->base) + FRAME_CONT);
+  L->top = L->base = ++o;
+  if (!ct)
+    lj_err_caller(cts->L, LJ_ERR_FFI_BADCBACK);
+  if (isluafunc(fn))
+    setcframe_pc(L->cframe, proto_bc(funcproto(fn))+1);
+  lj_state_checkstack(L, LUA_MINSTACK);  /* May throw. */
+  o = L->base;  /* Might have been reallocated. */
+
+#if LJ_TARGET_X86
+  /* x86 has several different calling conventions. */
+  switch (ctype_cconv(ct->info)) {
+  case CTCC_FASTCALL: maxgpr = 2; break;
+  case CTCC_THISCALL: maxgpr = 1; break;
+  default: maxgpr = 0; break;
+  }
+#endif
+
+  fid = ct->sib;
+  while (fid) {
+    CType *ctf = ctype_get(cts, fid);
+    if (!ctype_isattrib(ctf->info)) {
+      CType *cta;
+      void *sp;
+      CTSize sz;
+      int isfp;
+      MSize n;
+      lj_assertCTS(ctype_isfield(ctf->info), "field expected");
+      cta = ctype_rawchild(cts, ctf);
+      isfp = ctype_isfp(cta->info);
+      sz = (cta->size + CTSIZE_PTR-1) & ~(CTSIZE_PTR-1);
+      n = sz / CTSIZE_PTR;  /* Number of GPRs or stack slots needed. */
+
+      CALLBACK_HANDLE_REGARG  /* Handle register arguments. */
+
+      /* Otherwise pass argument on stack. */
+      if (CCALL_ALIGN_STACKARG && LJ_32 && sz == 8)
+	nsp = (nsp + 1) & ~1u;  /* Align 64 bit argument on stack. */
+      sp = &stack[nsp];
+      nsp += n;
+
+    done:
+      if (LJ_BE && cta->size < CTSIZE_PTR
+#if LJ_TARGET_MIPS64
+	  && !(isfp && nsp)
+#endif
+	 )
+	sp = (void *)((uint8_t *)sp + CTSIZE_PTR-cta->size);
+      gcsteps += lj_cconv_tv_ct(cts, cta, 0, o++, sp);
+    }
+    fid = ctf->sib;
+  }
+  L->top = o;
+#if LJ_TARGET_X86
+  /* Store stack adjustment for returns from non-cdecl callbacks. */
+  if (ctype_cconv(ct->info) != CTCC_CDECL) {
+#if LJ_FR2
+    (L->base-3)->u64 |= (nsp << (16+2));
+#else
+    (L->base-2)->u32.hi |= (nsp << (16+2));
+#endif
+  }
+#endif
+  while (gcsteps-- > 0)
+    lj_gc_check(L);
+}
+
+/* Convert Lua object to callback result. */
+static void callback_conv_result(CTState *cts, lua_State *L, TValue *o)
+{
+#if LJ_FR2
+  CType *ctr = ctype_raw(cts, (uint16_t)(L->base-3)->u64);
+#else
+  CType *ctr = ctype_raw(cts, (uint16_t)(L->base-2)->u32.hi);
+#endif
+#if LJ_TARGET_X86
+  cts->cb.gpr[2] = 0;
+#endif
+  if (!ctype_isvoid(ctr->info)) {
+    uint8_t *dp = (uint8_t *)&cts->cb.gpr[0];
+#if CCALL_NUM_FPR
+    if (ctype_isfp(ctr->info))
+      dp = (uint8_t *)&cts->cb.fpr[0];
+#endif
+#if LJ_TARGET_ARM64 && LJ_BE
+    if (ctype_isfp(ctr->info) && ctr->size == sizeof(float))
+      dp = (uint8_t *)&cts->cb.fpr[0].f[1];
+#endif
+    lj_cconv_ct_tv(cts, ctr, dp, o, 0);
+#ifdef CALLBACK_HANDLE_RET
+    CALLBACK_HANDLE_RET
+#endif
+    /* Extend returned integers to (at least) 32 bits. */
+    if (ctype_isinteger_or_bool(ctr->info) && ctr->size < 4) {
+      if (ctr->info & CTF_UNSIGNED)
+	*(uint32_t *)dp = ctr->size == 1 ? (uint32_t)*(uint8_t *)dp :
+					   (uint32_t)*(uint16_t *)dp;
+      else
+	*(int32_t *)dp = ctr->size == 1 ? (int32_t)*(int8_t *)dp :
+					  (int32_t)*(int16_t *)dp;
+    }
+#if LJ_TARGET_MIPS64 || (LJ_TARGET_ARM64 && LJ_BE)
+    /* Always sign-extend results to 64 bits. Even a soft-fp 'float'. */
+    if (ctr->size <= 4 &&
+	(LJ_ABI_SOFTFP || ctype_isinteger_or_bool(ctr->info)))
+      *(int64_t *)dp = (int64_t)*(int32_t *)dp;
+#endif
+#if LJ_TARGET_X86
+    if (ctype_isfp(ctr->info))
+      cts->cb.gpr[2] = ctr->size == sizeof(float) ? 1 : 2;
+#endif
+  }
+}
+
+/* Enter callback. */
+lua_State * LJ_FASTCALL lj_ccallback_enter(CTState *cts, void *cf)
+{
+  lua_State *L = cts->L;
+  global_State *g = cts->g;
+  lj_assertG(L != NULL, "uninitialized cts->L in callback");
+  if (tvref(g->jit_base)) {
+    setstrV(L, L->top++, lj_err_str(L, LJ_ERR_FFI_BADCBACK));
+    if (g->panic) g->panic(L);
+    exit(EXIT_FAILURE);
+  }
+  lj_trace_abort(g);  /* Never record across callback. */
+  /* Setup C frame. */
+  cframe_prev(cf) = L->cframe;
+  setcframe_L(cf, L);
+  cframe_errfunc(cf) = -1;
+  cframe_nres(cf) = 0;
+  L->cframe = cf;
+  callback_conv_args(cts, L);
+  return L;  /* Now call the function on this stack. */
+}
+
+/* Leave callback. */
+void LJ_FASTCALL lj_ccallback_leave(CTState *cts, TValue *o)
+{
+  lua_State *L = cts->L;
+  GCfunc *fn;
+  TValue *obase = L->base;
+  L->base = L->top;  /* Keep continuation frame for throwing errors. */
+  if (o >= L->base) {
+    /* PC of RET* is lost. Point to last line for result conv. errors. */
+    fn = curr_func(L);
+    if (isluafunc(fn)) {
+      GCproto *pt = funcproto(fn);
+      setcframe_pc(L->cframe, proto_bc(pt)+pt->sizebc+1);
+    }
+  }
+  callback_conv_result(cts, L, o);
+  /* Finally drop C frame and continuation frame. */
+  L->top -= 2+2*LJ_FR2;
+  L->base = obase;
+  L->cframe = cframe_prev(L->cframe);
+  cts->cb.slot = 0;  /* Blacklist C function that called the callback. */
+}
+
+/* -- C callback management ----------------------------------------------- */
+
+/* Get an unused slot in the callback slot table. */
+static MSize callback_slot_new(CTState *cts, CType *ct)
+{
+  CTypeID id = ctype_typeid(cts, ct);
+  CTypeID1 *cbid = cts->cb.cbid;
+  MSize top;
+  for (top = cts->cb.topid; top < cts->cb.sizeid; top++)
+    if (LJ_LIKELY(cbid[top] == 0))
+      goto found;
+#if CALLBACK_MAX_SLOT
+  if (top >= CALLBACK_MAX_SLOT)
+#endif
+    lj_err_caller(cts->L, LJ_ERR_FFI_CBACKOV);
+  if (!cts->cb.mcode)
+    callback_mcode_new(cts);
+  lj_mem_growvec(cts->L, cbid, cts->cb.sizeid, CALLBACK_MAX_SLOT, CTypeID1);
+  cts->cb.cbid = cbid;
+  memset(cbid+top, 0, (cts->cb.sizeid-top)*sizeof(CTypeID1));
+found:
+  cbid[top] = id;
+  cts->cb.topid = top+1;
+  return top;
+}
+
+/* Check for function pointer and supported argument/result types. */
+static CType *callback_checkfunc(CTState *cts, CType *ct)
+{
+  int narg = 0;
+  if (!ctype_isptr(ct->info) || (LJ_64 && ct->size != CTSIZE_PTR))
+    return NULL;
+  ct = ctype_rawchild(cts, ct);
+  if (ctype_isfunc(ct->info)) {
+    CType *ctr = ctype_rawchild(cts, ct);
+    CTypeID fid = ct->sib;
+    if (!(ctype_isvoid(ctr->info) || ctype_isenum(ctr->info) ||
+	  ctype_isptr(ctr->info) || (ctype_isnum(ctr->info) && ctr->size <= 8)))
+      return NULL;
+    if ((ct->info & CTF_VARARG))
+      return NULL;
+    while (fid) {
+      CType *ctf = ctype_get(cts, fid);
+      if (!ctype_isattrib(ctf->info)) {
+	CType *cta;
+	lj_assertCTS(ctype_isfield(ctf->info), "field expected");
+	cta = ctype_rawchild(cts, ctf);
+	if (!(ctype_isenum(cta->info) || ctype_isptr(cta->info) ||
+	      (ctype_isnum(cta->info) && cta->size <= 8)) ||
+	    ++narg >= LUA_MINSTACK-3)
+	  return NULL;
+      }
+      fid = ctf->sib;
+    }
+    return ct;
+  }
+  return NULL;
+}
+
+/* Create a new callback and return the callback function pointer. */
+void *lj_ccallback_new(CTState *cts, CType *ct, GCfunc *fn)
+{
+  ct = callback_checkfunc(cts, ct);
+  if (ct) {
+    MSize slot = callback_slot_new(cts, ct);
+    GCtab *t = cts->miscmap;
+    setfuncV(cts->L, lj_tab_setint(cts->L, t, (int32_t)slot), fn);
+    lj_gc_anybarriert(cts->L, t);
+    return callback_slot2ptr(cts, slot);
+  }
+  return NULL;  /* Bad conversion. */
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_ccallback.h b/libs/luajit-cmake/luajit/src/lj_ccallback.h
new file mode 100644
index 0000000..8a2c31d
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_ccallback.h
@@ -0,0 +1,25 @@
+/*
+** FFI C callback handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CCALLBACK_H
+#define _LJ_CCALLBACK_H
+
+#include "lj_obj.h"
+#include "lj_ctype.h"
+
+#if LJ_HASFFI
+
+/* Really belongs to lj_vm.h. */
+LJ_ASMF void lj_vm_ffi_callback(void);
+
+LJ_FUNC MSize lj_ccallback_ptr2slot(CTState *cts, void *p);
+LJ_FUNCA lua_State * LJ_FASTCALL lj_ccallback_enter(CTState *cts, void *cf);
+LJ_FUNCA void LJ_FASTCALL lj_ccallback_leave(CTState *cts, TValue *o);
+LJ_FUNC void *lj_ccallback_new(CTState *cts, CType *ct, GCfunc *fn);
+LJ_FUNC void lj_ccallback_mcode_free(CTState *cts);
+
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_cconv.c b/libs/luajit-cmake/luajit/src/lj_cconv.c
new file mode 100644
index 0000000..3bbfd3f
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_cconv.c
@@ -0,0 +1,770 @@
+/*
+** C type conversions.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_tab.h"
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#include "lj_cconv.h"
+#include "lj_ccallback.h"
+
+/* -- Conversion errors --------------------------------------------------- */
+
+/* Bad conversion. */
+LJ_NORET static void cconv_err_conv(CTState *cts, CType *d, CType *s,
+				    CTInfo flags)
+{
+  const char *dst = strdata(lj_ctype_repr(cts->L, ctype_typeid(cts, d), NULL));
+  const char *src;
+  if ((flags & CCF_FROMTV))
+    src = lj_obj_typename[1+(ctype_isnum(s->info) ? LUA_TNUMBER :
+			     ctype_isarray(s->info) ? LUA_TSTRING : LUA_TNIL)];
+  else
+    src = strdata(lj_ctype_repr(cts->L, ctype_typeid(cts, s), NULL));
+  if (CCF_GETARG(flags))
+    lj_err_argv(cts->L, CCF_GETARG(flags), LJ_ERR_FFI_BADCONV, src, dst);
+  else
+    lj_err_callerv(cts->L, LJ_ERR_FFI_BADCONV, src, dst);
+}
+
+/* Bad conversion from TValue. */
+LJ_NORET static void cconv_err_convtv(CTState *cts, CType *d, TValue *o,
+				      CTInfo flags)
+{
+  const char *dst = strdata(lj_ctype_repr(cts->L, ctype_typeid(cts, d), NULL));
+  const char *src = lj_typename(o);
+  if (CCF_GETARG(flags))
+    lj_err_argv(cts->L, CCF_GETARG(flags), LJ_ERR_FFI_BADCONV, src, dst);
+  else
+    lj_err_callerv(cts->L, LJ_ERR_FFI_BADCONV, src, dst);
+}
+
+/* Initializer overflow. */
+LJ_NORET static void cconv_err_initov(CTState *cts, CType *d)
+{
+  const char *dst = strdata(lj_ctype_repr(cts->L, ctype_typeid(cts, d), NULL));
+  lj_err_callerv(cts->L, LJ_ERR_FFI_INITOV, dst);
+}
+
+/* -- C type compatibility checks ----------------------------------------- */
+
+/* Get raw type and qualifiers for a child type. Resolves enums, too. */
+static CType *cconv_childqual(CTState *cts, CType *ct, CTInfo *qual)
+{
+  ct = ctype_child(cts, ct);
+  for (;;) {
+    if (ctype_isattrib(ct->info)) {
+      if (ctype_attrib(ct->info) == CTA_QUAL) *qual |= ct->size;
+    } else if (!ctype_isenum(ct->info)) {
+      break;
+    }
+    ct = ctype_child(cts, ct);
+  }
+  *qual |= (ct->info & CTF_QUAL);
+  return ct;
+}
+
+/* Check for compatible types when converting to a pointer.
+** Note: these checks are more relaxed than what C99 mandates.
+*/
+int lj_cconv_compatptr(CTState *cts, CType *d, CType *s, CTInfo flags)
+{
+  if (!((flags & CCF_CAST) || d == s)) {
+    CTInfo dqual = 0, squal = 0;
+    d = cconv_childqual(cts, d, &dqual);
+    if (!ctype_isstruct(s->info))
+      s = cconv_childqual(cts, s, &squal);
+    if ((flags & CCF_SAME)) {
+      if (dqual != squal)
+	return 0;  /* Different qualifiers. */
+    } else if (!(flags & CCF_IGNQUAL)) {
+      if ((dqual & squal) != squal)
+	return 0;  /* Discarded qualifiers. */
+      if (ctype_isvoid(d->info) || ctype_isvoid(s->info))
+	return 1;  /* Converting to/from void * is always ok. */
+    }
+    if (ctype_type(d->info) != ctype_type(s->info) ||
+	d->size != s->size)
+      return 0;  /* Different type or different size. */
+    if (ctype_isnum(d->info)) {
+      if (((d->info ^ s->info) & (CTF_BOOL|CTF_FP)))
+	return 0;  /* Different numeric types. */
+    } else if (ctype_ispointer(d->info)) {
+      /* Check child types for compatibility. */
+      return lj_cconv_compatptr(cts, d, s, flags|CCF_SAME);
+    } else if (ctype_isstruct(d->info)) {
+      if (d != s)
+	return 0;  /* Must be exact same type for struct/union. */
+    } else if (ctype_isfunc(d->info)) {
+      /* NYI: structural equality of functions. */
+    }
+  }
+  return 1;  /* Types are compatible. */
+}
+
+/* -- C type to C type conversion ----------------------------------------- */
+
+/* Convert C type to C type. Caveat: expects to get the raw CType!
+**
+** Note: This is only used by the interpreter and not optimized at all.
+** The JIT compiler will do a much better job specializing for each case.
+*/
+void lj_cconv_ct_ct(CTState *cts, CType *d, CType *s,
+		    uint8_t *dp, uint8_t *sp, CTInfo flags)
+{
+  CTSize dsize = d->size, ssize = s->size;
+  CTInfo dinfo = d->info, sinfo = s->info;
+  void *tmpptr;
+
+  lj_assertCTS(!ctype_isenum(dinfo) && !ctype_isenum(sinfo),
+	       "unresolved enum");
+  lj_assertCTS(!ctype_isattrib(dinfo) && !ctype_isattrib(sinfo),
+	       "unstripped attribute");
+
+  if (ctype_type(dinfo) > CT_MAYCONVERT || ctype_type(sinfo) > CT_MAYCONVERT)
+    goto err_conv;
+
+  /* Some basic sanity checks. */
+  lj_assertCTS(!ctype_isnum(dinfo) || dsize > 0, "bad size for number type");
+  lj_assertCTS(!ctype_isnum(sinfo) || ssize > 0, "bad size for number type");
+  lj_assertCTS(!ctype_isbool(dinfo) || dsize == 1 || dsize == 4,
+	       "bad size for bool type");
+  lj_assertCTS(!ctype_isbool(sinfo) || ssize == 1 || ssize == 4,
+	       "bad size for bool type");
+  lj_assertCTS(!ctype_isinteger(dinfo) || (1u<<lj_fls(dsize)) == dsize,
+	       "bad size for integer type");
+  lj_assertCTS(!ctype_isinteger(sinfo) || (1u<<lj_fls(ssize)) == ssize,
+	       "bad size for integer type");
+
+  switch (cconv_idx2(dinfo, sinfo)) {
+  /* Destination is a bool. */
+  case CCX(B, B):
+    /* Source operand is already normalized. */
+    if (dsize == 1) *dp = *sp; else *(int *)dp = *sp;
+    break;
+  case CCX(B, I): {
+    MSize i;
+    uint8_t b = 0;
+    for (i = 0; i < ssize; i++) b |= sp[i];
+    b = (b != 0);
+    if (dsize == 1) *dp = b; else *(int *)dp = b;
+    break;
+    }
+  case CCX(B, F): {
+    uint8_t b;
+    if (ssize == sizeof(double)) b = (*(double *)sp != 0);
+    else if (ssize == sizeof(float)) b = (*(float *)sp != 0);
+    else goto err_conv;  /* NYI: long double. */
+    if (dsize == 1) *dp = b; else *(int *)dp = b;
+    break;
+    }
+
+  /* Destination is an integer. */
+  case CCX(I, B):
+  case CCX(I, I):
+  conv_I_I:
+    if (dsize > ssize) {  /* Zero-extend or sign-extend LSB. */
+#if LJ_LE
+      uint8_t fill = (!(sinfo & CTF_UNSIGNED) && (sp[ssize-1]&0x80)) ? 0xff : 0;
+      memcpy(dp, sp, ssize);
+      memset(dp + ssize, fill, dsize-ssize);
+#else
+      uint8_t fill = (!(sinfo & CTF_UNSIGNED) && (sp[0]&0x80)) ? 0xff : 0;
+      memset(dp, fill, dsize-ssize);
+      memcpy(dp + (dsize-ssize), sp, ssize);
+#endif
+    } else {  /* Copy LSB. */
+#if LJ_LE
+      memcpy(dp, sp, dsize);
+#else
+      memcpy(dp, sp + (ssize-dsize), dsize);
+#endif
+    }
+    break;
+  case CCX(I, F): {
+    double n;  /* Always convert via double. */
+  conv_I_F:
+    /* Convert source to double. */
+    if (ssize == sizeof(double)) n = *(double *)sp;
+    else if (ssize == sizeof(float)) n = (double)*(float *)sp;
+    else goto err_conv;  /* NYI: long double. */
+    /* Then convert double to integer. */
+    /* The conversion must exactly match the semantics of JIT-compiled code! */
+    if (dsize < 4 || (dsize == 4 && !(dinfo & CTF_UNSIGNED))) {
+      int32_t i = (int32_t)n;
+      if (dsize == 4) *(int32_t *)dp = i;
+      else if (dsize == 2) *(int16_t *)dp = (int16_t)i;
+      else *(int8_t *)dp = (int8_t)i;
+    } else if (dsize == 4) {
+      *(uint32_t *)dp = (uint32_t)n;
+    } else if (dsize == 8) {
+      if (!(dinfo & CTF_UNSIGNED))
+	*(int64_t *)dp = (int64_t)n;
+      else
+	*(uint64_t *)dp = lj_num2u64(n);
+    } else {
+      goto err_conv;  /* NYI: conversion to >64 bit integers. */
+    }
+    break;
+    }
+  case CCX(I, C):
+    s = ctype_child(cts, s);
+    sinfo = s->info;
+    ssize = s->size;
+    goto conv_I_F;  /* Just convert re. */
+  case CCX(I, P):
+    if (!(flags & CCF_CAST)) goto err_conv;
+    sinfo = CTINFO(CT_NUM, CTF_UNSIGNED);
+    goto conv_I_I;
+  case CCX(I, A):
+    if (!(flags & CCF_CAST)) goto err_conv;
+    sinfo = CTINFO(CT_NUM, CTF_UNSIGNED);
+    ssize = CTSIZE_PTR;
+    tmpptr = sp;
+    sp = (uint8_t *)&tmpptr;
+    goto conv_I_I;
+
+  /* Destination is a floating-point number. */
+  case CCX(F, B):
+  case CCX(F, I): {
+    double n;  /* Always convert via double. */
+  conv_F_I:
+    /* First convert source to double. */
+    /* The conversion must exactly match the semantics of JIT-compiled code! */
+    if (ssize < 4 || (ssize == 4 && !(sinfo & CTF_UNSIGNED))) {
+      int32_t i;
+      if (ssize == 4) {
+	i = *(int32_t *)sp;
+      } else if (!(sinfo & CTF_UNSIGNED)) {
+	if (ssize == 2) i = *(int16_t *)sp;
+	else i = *(int8_t *)sp;
+      } else {
+	if (ssize == 2) i = *(uint16_t *)sp;
+	else i = *(uint8_t *)sp;
+      }
+      n = (double)i;
+    } else if (ssize == 4) {
+      n = (double)*(uint32_t *)sp;
+    } else if (ssize == 8) {
+      if (!(sinfo & CTF_UNSIGNED)) n = (double)*(int64_t *)sp;
+      else n = (double)*(uint64_t *)sp;
+    } else {
+      goto err_conv;  /* NYI: conversion from >64 bit integers. */
+    }
+    /* Convert double to destination. */
+    if (dsize == sizeof(double)) *(double *)dp = n;
+    else if (dsize == sizeof(float)) *(float *)dp = (float)n;
+    else goto err_conv;  /* NYI: long double. */
+    break;
+    }
+  case CCX(F, F): {
+    double n;  /* Always convert via double. */
+  conv_F_F:
+    if (ssize == dsize) goto copyval;
+    /* Convert source to double. */
+    if (ssize == sizeof(double)) n = *(double *)sp;
+    else if (ssize == sizeof(float)) n = (double)*(float *)sp;
+    else goto err_conv;  /* NYI: long double. */
+    /* Convert double to destination. */
+    if (dsize == sizeof(double)) *(double *)dp = n;
+    else if (dsize == sizeof(float)) *(float *)dp = (float)n;
+    else goto err_conv;  /* NYI: long double. */
+    break;
+    }
+  case CCX(F, C):
+    s = ctype_child(cts, s);
+    sinfo = s->info;
+    ssize = s->size;
+    goto conv_F_F;  /* Ignore im, and convert from re. */
+
+  /* Destination is a complex number. */
+  case CCX(C, I):
+    d = ctype_child(cts, d);
+    dinfo = d->info;
+    dsize = d->size;
+    memset(dp + dsize, 0, dsize);  /* Clear im. */
+    goto conv_F_I;  /* Convert to re. */
+  case CCX(C, F):
+    d = ctype_child(cts, d);
+    dinfo = d->info;
+    dsize = d->size;
+    memset(dp + dsize, 0, dsize);  /* Clear im. */
+    goto conv_F_F;  /* Convert to re. */
+
+  case CCX(C, C):
+    if (dsize != ssize) {  /* Different types: convert re/im separately. */
+      CType *dc = ctype_child(cts, d);
+      CType *sc = ctype_child(cts, s);
+      lj_cconv_ct_ct(cts, dc, sc, dp, sp, flags);
+      lj_cconv_ct_ct(cts, dc, sc, dp + dc->size, sp + sc->size, flags);
+      return;
+    }
+    goto copyval;  /* Otherwise this is easy. */
+
+  /* Destination is a vector. */
+  case CCX(V, I):
+  case CCX(V, F):
+  case CCX(V, C): {
+    CType *dc = ctype_child(cts, d);
+    CTSize esize;
+    /* First convert the scalar to the first element. */
+    lj_cconv_ct_ct(cts, dc, s, dp, sp, flags);
+    /* Then replicate it to the other elements (splat). */
+    for (sp = dp, esize = dc->size; dsize > esize; dsize -= esize) {
+      dp += esize;
+      memcpy(dp, sp, esize);
+    }
+    break;
+    }
+
+  case CCX(V, V):
+    /* Copy same-sized vectors, even for different lengths/element-types. */
+    if (dsize != ssize) goto err_conv;
+    goto copyval;
+
+  /* Destination is a pointer. */
+  case CCX(P, I):
+    if (!(flags & CCF_CAST)) goto err_conv;
+    dinfo = CTINFO(CT_NUM, CTF_UNSIGNED);
+    goto conv_I_I;
+
+  case CCX(P, F):
+    if (!(flags & CCF_CAST) || !(flags & CCF_FROMTV)) goto err_conv;
+    /* The signed conversion is cheaper. x64 really has 47 bit pointers. */
+    dinfo = CTINFO(CT_NUM, (LJ_64 && dsize == 8) ? 0 : CTF_UNSIGNED);
+    goto conv_I_F;
+
+  case CCX(P, P):
+    if (!lj_cconv_compatptr(cts, d, s, flags)) goto err_conv;
+    cdata_setptr(dp, dsize, cdata_getptr(sp, ssize));
+    break;
+
+  case CCX(P, A):
+  case CCX(P, S):
+    if (!lj_cconv_compatptr(cts, d, s, flags)) goto err_conv;
+    cdata_setptr(dp, dsize, sp);
+    break;
+
+  /* Destination is an array. */
+  case CCX(A, A):
+    if ((flags & CCF_CAST) || (d->info & CTF_VLA) || dsize != ssize ||
+	d->size == CTSIZE_INVALID || !lj_cconv_compatptr(cts, d, s, flags))
+      goto err_conv;
+    goto copyval;
+
+  /* Destination is a struct/union. */
+  case CCX(S, S):
+    if ((flags & CCF_CAST) || (d->info & CTF_VLA) || d != s)
+      goto err_conv;  /* Must be exact same type. */
+copyval:  /* Copy value. */
+    lj_assertCTS(dsize == ssize, "value copy with different sizes");
+    memcpy(dp, sp, dsize);
+    break;
+
+  default:
+  err_conv:
+    cconv_err_conv(cts, d, s, flags);
+  }
+}
+
+/* -- C type to TValue conversion ----------------------------------------- */
+
+/* Convert C type to TValue. Caveat: expects to get the raw CType! */
+int lj_cconv_tv_ct(CTState *cts, CType *s, CTypeID sid,
+		   TValue *o, uint8_t *sp)
+{
+  CTInfo sinfo = s->info;
+  if (ctype_isnum(sinfo)) {
+    if (!ctype_isbool(sinfo)) {
+      if (ctype_isinteger(sinfo) && s->size > 4) goto copyval;
+      if (LJ_DUALNUM && ctype_isinteger(sinfo)) {
+	int32_t i;
+	lj_cconv_ct_ct(cts, ctype_get(cts, CTID_INT32), s,
+		       (uint8_t *)&i, sp, 0);
+	if ((sinfo & CTF_UNSIGNED) && i < 0)
+	  setnumV(o, (lua_Number)(uint32_t)i);
+	else
+	  setintV(o, i);
+      } else {
+	lj_cconv_ct_ct(cts, ctype_get(cts, CTID_DOUBLE), s,
+		       (uint8_t *)&o->n, sp, 0);
+	/* Numbers are NOT canonicalized here! Beware of uninitialized data. */
+	lj_assertCTS(tvisnum(o), "non-canonical NaN passed");
+      }
+    } else {
+      uint32_t b = s->size == 1 ? (*sp != 0) : (*(int *)sp != 0);
+      setboolV(o, b);
+      setboolV(&cts->g->tmptv2, b);  /* Remember for trace recorder. */
+    }
+    return 0;
+  } else if (ctype_isrefarray(sinfo) || ctype_isstruct(sinfo)) {
+    /* Create reference. */
+    setcdataV(cts->L, o, lj_cdata_newref(cts, sp, sid));
+    return 1;  /* Need GC step. */
+  } else {
+    GCcdata *cd;
+    CTSize sz;
+  copyval:  /* Copy value. */
+    sz = s->size;
+    lj_assertCTS(sz != CTSIZE_INVALID, "value copy with invalid size");
+    /* Attributes are stripped, qualifiers are kept (but mostly ignored). */
+    cd = lj_cdata_new(cts, ctype_typeid(cts, s), sz);
+    setcdataV(cts->L, o, cd);
+    memcpy(cdataptr(cd), sp, sz);
+    return 1;  /* Need GC step. */
+  }
+}
+
+/* Convert bitfield to TValue. */
+int lj_cconv_tv_bf(CTState *cts, CType *s, TValue *o, uint8_t *sp)
+{
+  CTInfo info = s->info;
+  CTSize pos, bsz;
+  uint32_t val;
+  lj_assertCTS(ctype_isbitfield(info), "bitfield expected");
+  /* NYI: packed bitfields may cause misaligned reads. */
+  switch (ctype_bitcsz(info)) {
+  case 4: val = *(uint32_t *)sp; break;
+  case 2: val = *(uint16_t *)sp; break;
+  case 1: val = *(uint8_t *)sp; break;
+  default:
+    lj_assertCTS(0, "bad bitfield container size %d", ctype_bitcsz(info));
+    val = 0;
+    break;
+  }
+  /* Check if a packed bitfield crosses a container boundary. */
+  pos = ctype_bitpos(info);
+  bsz = ctype_bitbsz(info);
+  lj_assertCTS(pos < 8*ctype_bitcsz(info), "bad bitfield position");
+  lj_assertCTS(bsz > 0 && bsz <= 8*ctype_bitcsz(info), "bad bitfield size");
+  if (pos + bsz > 8*ctype_bitcsz(info))
+    lj_err_caller(cts->L, LJ_ERR_FFI_NYIPACKBIT);
+  if (!(info & CTF_BOOL)) {
+    CTSize shift = 32 - bsz;
+    if (!(info & CTF_UNSIGNED)) {
+      setintV(o, (int32_t)(val << (shift-pos)) >> shift);
+    } else {
+      val = (val << (shift-pos)) >> shift;
+      if (!LJ_DUALNUM || (int32_t)val < 0)
+	setnumV(o, (lua_Number)(uint32_t)val);
+      else
+	setintV(o, (int32_t)val);
+    }
+  } else {
+    uint32_t b = (val >> pos) & 1;
+    lj_assertCTS(bsz == 1, "bad bool bitfield size");
+    setboolV(o, b);
+    setboolV(&cts->g->tmptv2, b);  /* Remember for trace recorder. */
+  }
+  return 0;  /* No GC step needed. */
+}
+
+/* -- TValue to C type conversion ----------------------------------------- */
+
+/* Convert table to array. */
+static void cconv_array_tab(CTState *cts, CType *d,
+			    uint8_t *dp, GCtab *t, CTInfo flags)
+{
+  int32_t i;
+  CType *dc = ctype_rawchild(cts, d);  /* Array element type. */
+  CTSize size = d->size, esize = dc->size, ofs = 0;
+  for (i = 0; ; i++) {
+    TValue *tv = (TValue *)lj_tab_getint(t, i);
+    if (!tv || tvisnil(tv)) {
+      if (i == 0) continue;  /* Try again for 1-based tables. */
+      break;  /* Stop at first nil. */
+    }
+    if (ofs >= size)
+      cconv_err_initov(cts, d);
+    lj_cconv_ct_tv(cts, dc, dp + ofs, tv, flags);
+    ofs += esize;
+  }
+  if (size != CTSIZE_INVALID) {  /* Only fill up arrays with known size. */
+    if (ofs == esize) {  /* Replicate a single element. */
+      for (; ofs < size; ofs += esize) memcpy(dp + ofs, dp, esize);
+    } else {  /* Otherwise fill the remainder with zero. */
+      memset(dp + ofs, 0, size - ofs);
+    }
+  }
+}
+
+/* Convert table to sub-struct/union. */
+static void cconv_substruct_tab(CTState *cts, CType *d, uint8_t *dp,
+				GCtab *t, int32_t *ip, CTInfo flags)
+{
+  CTypeID id = d->sib;
+  while (id) {
+    CType *df = ctype_get(cts, id);
+    id = df->sib;
+    if (ctype_isfield(df->info) || ctype_isbitfield(df->info)) {
+      TValue *tv;
+      int32_t i = *ip, iz = i;
+      if (!gcref(df->name)) continue;  /* Ignore unnamed fields. */
+      if (i >= 0) {
+      retry:
+	tv = (TValue *)lj_tab_getint(t, i);
+	if (!tv || tvisnil(tv)) {
+	  if (i == 0) { i = 1; goto retry; }  /* 1-based tables. */
+	  if (iz == 0) { *ip = i = -1; goto tryname; }  /* Init named fields. */
+	  break;  /* Stop at first nil. */
+	}
+	*ip = i + 1;
+      } else {
+      tryname:
+	tv = (TValue *)lj_tab_getstr(t, gco2str(gcref(df->name)));
+	if (!tv || tvisnil(tv)) continue;
+      }
+      if (ctype_isfield(df->info))
+	lj_cconv_ct_tv(cts, ctype_rawchild(cts, df), dp+df->size, tv, flags);
+      else
+	lj_cconv_bf_tv(cts, df, dp+df->size, tv);
+      if ((d->info & CTF_UNION)) break;
+    } else if (ctype_isxattrib(df->info, CTA_SUBTYPE)) {
+      cconv_substruct_tab(cts, ctype_rawchild(cts, df),
+			  dp+df->size, t, ip, flags);
+    }  /* Ignore all other entries in the chain. */
+  }
+}
+
+/* Convert table to struct/union. */
+static void cconv_struct_tab(CTState *cts, CType *d,
+			     uint8_t *dp, GCtab *t, CTInfo flags)
+{
+  int32_t i = 0;
+  memset(dp, 0, d->size);  /* Much simpler to clear the struct first. */
+  cconv_substruct_tab(cts, d, dp, t, &i, flags);
+}
+
+/* Convert TValue to C type. Caveat: expects to get the raw CType! */
+void lj_cconv_ct_tv(CTState *cts, CType *d,
+		    uint8_t *dp, TValue *o, CTInfo flags)
+{
+  CTypeID sid = CTID_P_VOID;
+  CType *s;
+  void *tmpptr;
+  uint8_t tmpbool, *sp = (uint8_t *)&tmpptr;
+  if (LJ_LIKELY(tvisint(o))) {
+    sp = (uint8_t *)&o->i;
+    sid = CTID_INT32;
+    flags |= CCF_FROMTV;
+  } else if (LJ_LIKELY(tvisnum(o))) {
+    sp = (uint8_t *)&o->n;
+    sid = CTID_DOUBLE;
+    flags |= CCF_FROMTV;
+  } else if (tviscdata(o)) {
+    sp = cdataptr(cdataV(o));
+    sid = cdataV(o)->ctypeid;
+    s = ctype_get(cts, sid);
+    if (ctype_isref(s->info)) {  /* Resolve reference for value. */
+      lj_assertCTS(s->size == CTSIZE_PTR, "ref is not pointer-sized");
+      sp = *(void **)sp;
+      sid = ctype_cid(s->info);
+    }
+    s = ctype_raw(cts, sid);
+    if (ctype_isfunc(s->info)) {
+      CTypeID did = ctype_typeid(cts, d);
+      sid = lj_ctype_intern(cts, CTINFO(CT_PTR, CTALIGN_PTR|sid), CTSIZE_PTR);
+      d = ctype_get(cts, did);  /* cts->tab may have been reallocated. */
+    } else {
+      if (ctype_isenum(s->info)) s = ctype_child(cts, s);
+      goto doconv;
+    }
+  } else if (tvisstr(o)) {
+    GCstr *str = strV(o);
+    if (ctype_isenum(d->info)) {  /* Match string against enum constant. */
+      CTSize ofs;
+      CType *cct = lj_ctype_getfield(cts, d, str, &ofs);
+      if (!cct || !ctype_isconstval(cct->info))
+	goto err_conv;
+      lj_assertCTS(d->size == 4, "only 32 bit enum supported");  /* NYI */
+      sp = (uint8_t *)&cct->size;
+      sid = ctype_cid(cct->info);
+    } else if (ctype_isrefarray(d->info)) {  /* Copy string to array. */
+      CType *dc = ctype_rawchild(cts, d);
+      CTSize sz = str->len+1;
+      if (!ctype_isinteger(dc->info) || dc->size != 1)
+	goto err_conv;
+      if (d->size != 0 && d->size < sz)
+	sz = d->size;
+      memcpy(dp, strdata(str), sz);
+      return;
+    } else {  /* Otherwise pass it as a const char[]. */
+      sp = (uint8_t *)strdata(str);
+      sid = CTID_A_CCHAR;
+      flags |= CCF_FROMTV;
+    }
+  } else if (tvistab(o)) {
+    if (ctype_isarray(d->info)) {
+      cconv_array_tab(cts, d, dp, tabV(o), flags);
+      return;
+    } else if (ctype_isstruct(d->info)) {
+      cconv_struct_tab(cts, d, dp, tabV(o), flags);
+      return;
+    } else {
+      goto err_conv;
+    }
+  } else if (tvisbool(o)) {
+    tmpbool = boolV(o);
+    sp = &tmpbool;
+    sid = CTID_BOOL;
+  } else if (tvisnil(o)) {
+    tmpptr = (void *)0;
+    flags |= CCF_FROMTV;
+  } else if (tvisudata(o)) {
+    GCudata *ud = udataV(o);
+    tmpptr = uddata(ud);
+    if (ud->udtype == UDTYPE_IO_FILE)
+      tmpptr = *(void **)tmpptr;
+    else if (ud->udtype == UDTYPE_BUFFER)
+      tmpptr = ((SBufExt *)tmpptr)->r;
+  } else if (tvislightud(o)) {
+    tmpptr = lightudV(cts->g, o);
+  } else if (tvisfunc(o)) {
+    void *p = lj_ccallback_new(cts, d, funcV(o));
+    if (p) {
+      *(void **)dp = p;
+      return;
+    }
+    goto err_conv;
+  } else {
+  err_conv:
+    cconv_err_convtv(cts, d, o, flags);
+  }
+  s = ctype_get(cts, sid);
+doconv:
+  if (ctype_isenum(d->info)) d = ctype_child(cts, d);
+  lj_cconv_ct_ct(cts, d, s, dp, sp, flags);
+}
+
+/* Convert TValue to bitfield. */
+void lj_cconv_bf_tv(CTState *cts, CType *d, uint8_t *dp, TValue *o)
+{
+  CTInfo info = d->info;
+  CTSize pos, bsz;
+  uint32_t val, mask;
+  lj_assertCTS(ctype_isbitfield(info), "bitfield expected");
+  if ((info & CTF_BOOL)) {
+    uint8_t tmpbool;
+    lj_assertCTS(ctype_bitbsz(info) == 1, "bad bool bitfield size");
+    lj_cconv_ct_tv(cts, ctype_get(cts, CTID_BOOL), &tmpbool, o, 0);
+    val = tmpbool;
+  } else {
+    CTypeID did = (info & CTF_UNSIGNED) ? CTID_UINT32 : CTID_INT32;
+    lj_cconv_ct_tv(cts, ctype_get(cts, did), (uint8_t *)&val, o, 0);
+  }
+  pos = ctype_bitpos(info);
+  bsz = ctype_bitbsz(info);
+  lj_assertCTS(pos < 8*ctype_bitcsz(info), "bad bitfield position");
+  lj_assertCTS(bsz > 0 && bsz <= 8*ctype_bitcsz(info), "bad bitfield size");
+  /* Check if a packed bitfield crosses a container boundary. */
+  if (pos + bsz > 8*ctype_bitcsz(info))
+    lj_err_caller(cts->L, LJ_ERR_FFI_NYIPACKBIT);
+  mask = ((1u << bsz) - 1u) << pos;
+  val = (val << pos) & mask;
+  /* NYI: packed bitfields may cause misaligned reads/writes. */
+  switch (ctype_bitcsz(info)) {
+  case 4: *(uint32_t *)dp = (*(uint32_t *)dp & ~mask) | (uint32_t)val; break;
+  case 2: *(uint16_t *)dp = (*(uint16_t *)dp & ~mask) | (uint16_t)val; break;
+  case 1: *(uint8_t *)dp = (*(uint8_t *)dp & ~mask) | (uint8_t)val; break;
+  default:
+    lj_assertCTS(0, "bad bitfield container size %d", ctype_bitcsz(info));
+    break;
+  }
+}
+
+/* -- Initialize C type with TValues -------------------------------------- */
+
+/* Initialize an array with TValues. */
+static void cconv_array_init(CTState *cts, CType *d, CTSize sz, uint8_t *dp,
+			     TValue *o, MSize len)
+{
+  CType *dc = ctype_rawchild(cts, d);  /* Array element type. */
+  CTSize ofs, esize = dc->size;
+  MSize i;
+  if (len*esize > sz)
+    cconv_err_initov(cts, d);
+  for (i = 0, ofs = 0; i < len; i++, ofs += esize)
+    lj_cconv_ct_tv(cts, dc, dp + ofs, o + i, 0);
+  if (ofs == esize) {  /* Replicate a single element. */
+    for (; ofs < sz; ofs += esize) memcpy(dp + ofs, dp, esize);
+  } else {  /* Otherwise fill the remainder with zero. */
+    memset(dp + ofs, 0, sz - ofs);
+  }
+}
+
+/* Initialize a sub-struct/union with TValues. */
+static void cconv_substruct_init(CTState *cts, CType *d, uint8_t *dp,
+				 TValue *o, MSize len, MSize *ip)
+{
+  CTypeID id = d->sib;
+  while (id) {
+    CType *df = ctype_get(cts, id);
+    id = df->sib;
+    if (ctype_isfield(df->info) || ctype_isbitfield(df->info)) {
+      MSize i = *ip;
+      if (!gcref(df->name)) continue;  /* Ignore unnamed fields. */
+      if (i >= len) break;
+      *ip = i + 1;
+      if (ctype_isfield(df->info))
+	lj_cconv_ct_tv(cts, ctype_rawchild(cts, df), dp+df->size, o + i, 0);
+      else
+	lj_cconv_bf_tv(cts, df, dp+df->size, o + i);
+      if ((d->info & CTF_UNION)) break;
+    } else if (ctype_isxattrib(df->info, CTA_SUBTYPE)) {
+      cconv_substruct_init(cts, ctype_rawchild(cts, df),
+			   dp+df->size, o, len, ip);
+      if ((d->info & CTF_UNION)) break;
+    }  /* Ignore all other entries in the chain. */
+  }
+}
+
+/* Initialize a struct/union with TValues. */
+static void cconv_struct_init(CTState *cts, CType *d, CTSize sz, uint8_t *dp,
+			      TValue *o, MSize len)
+{
+  MSize i = 0;
+  memset(dp, 0, sz);  /* Much simpler to clear the struct first. */
+  cconv_substruct_init(cts, d, dp, o, len, &i);
+  if (i < len)
+    cconv_err_initov(cts, d);
+}
+
+/* Check whether to use a multi-value initializer.
+** This is true if an aggregate is to be initialized with a value.
+** Valarrays are treated as values here so ct_tv handles (V|C, I|F).
+*/
+int lj_cconv_multi_init(CTState *cts, CType *d, TValue *o)
+{
+  if (!(ctype_isrefarray(d->info) || ctype_isstruct(d->info)))
+    return 0;  /* Destination is not an aggregate. */
+  if (tvistab(o) || (tvisstr(o) && !ctype_isstruct(d->info)))
+    return 0;  /* Initializer is not a value. */
+  if (tviscdata(o) && lj_ctype_rawref(cts, cdataV(o)->ctypeid) == d)
+    return 0;  /* Source and destination are identical aggregates. */
+  return 1;  /* Otherwise the initializer is a value. */
+}
+
+/* Initialize C type with TValues. Caveat: expects to get the raw CType! */
+void lj_cconv_ct_init(CTState *cts, CType *d, CTSize sz,
+		      uint8_t *dp, TValue *o, MSize len)
+{
+  if (len == 0)
+    memset(dp, 0, sz);
+  else if (len == 1 && !lj_cconv_multi_init(cts, d, o))
+    lj_cconv_ct_tv(cts, d, dp, o, 0);
+  else if (ctype_isarray(d->info))  /* Also handles valarray init with len>1. */
+    cconv_array_init(cts, d, sz, dp, o, len);
+  else if (ctype_isstruct(d->info))
+    cconv_struct_init(cts, d, sz, dp, o, len);
+  else
+    cconv_err_initov(cts, d);
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_cconv.h b/libs/luajit-cmake/luajit/src/lj_cconv.h
new file mode 100644
index 0000000..45b0ca1
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_cconv.h
@@ -0,0 +1,71 @@
+/*
+** C type conversions.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CCONV_H
+#define _LJ_CCONV_H
+
+#include "lj_obj.h"
+#include "lj_ctype.h"
+
+#if LJ_HASFFI
+
+/* Compressed C type index. ORDER CCX. */
+enum {
+  CCX_B,	/* Bool. */
+  CCX_I,	/* Integer. */
+  CCX_F,	/* Floating-point number. */
+  CCX_C,	/* Complex. */
+  CCX_V,	/* Vector. */
+  CCX_P,	/* Pointer. */
+  CCX_A,	/* Refarray. */
+  CCX_S		/* Struct/union. */
+};
+
+/* Convert C type info to compressed C type index. ORDER CT. ORDER CCX. */
+static LJ_AINLINE uint32_t cconv_idx(CTInfo info)
+{
+  uint32_t idx = ((info >> 26) & 15u);  /* Dispatch bits. */
+  lj_assertX(ctype_type(info) <= CT_MAYCONVERT,
+	     "cannot convert ctype %08x", info);
+#if LJ_64
+  idx = ((uint32_t)(U64x(f436fff5,fff7f021) >> 4*idx) & 15u);
+#else
+  idx = (((idx < 8 ? 0xfff7f021u : 0xf436fff5) >> 4*(idx & 7u)) & 15u);
+#endif
+  lj_assertX(idx < 8, "cannot convert ctype %08x", info);
+  return idx;
+}
+
+#define cconv_idx2(dinfo, sinfo) \
+  ((cconv_idx((dinfo)) << 3) + cconv_idx((sinfo)))
+
+#define CCX(dst, src)		((CCX_##dst << 3) + CCX_##src)
+
+/* Conversion flags. */
+#define CCF_CAST	0x00000001u
+#define CCF_FROMTV	0x00000002u
+#define CCF_SAME	0x00000004u
+#define CCF_IGNQUAL	0x00000008u
+
+#define CCF_ARG_SHIFT	8
+#define CCF_ARG(n)	((n) << CCF_ARG_SHIFT)
+#define CCF_GETARG(f)	((f) >> CCF_ARG_SHIFT)
+
+LJ_FUNC int lj_cconv_compatptr(CTState *cts, CType *d, CType *s, CTInfo flags);
+LJ_FUNC void lj_cconv_ct_ct(CTState *cts, CType *d, CType *s,
+			    uint8_t *dp, uint8_t *sp, CTInfo flags);
+LJ_FUNC int lj_cconv_tv_ct(CTState *cts, CType *s, CTypeID sid,
+			   TValue *o, uint8_t *sp);
+LJ_FUNC int lj_cconv_tv_bf(CTState *cts, CType *s, TValue *o, uint8_t *sp);
+LJ_FUNC void lj_cconv_ct_tv(CTState *cts, CType *d,
+			    uint8_t *dp, TValue *o, CTInfo flags);
+LJ_FUNC void lj_cconv_bf_tv(CTState *cts, CType *d, uint8_t *dp, TValue *o);
+LJ_FUNC int lj_cconv_multi_init(CTState *cts, CType *d, TValue *o);
+LJ_FUNC void lj_cconv_ct_init(CTState *cts, CType *d, CTSize sz,
+			      uint8_t *dp, TValue *o, MSize len);
+
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_cdata.c b/libs/luajit-cmake/luajit/src/lj_cdata.c
new file mode 100644
index 0000000..01a74f5
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_cdata.c
@@ -0,0 +1,304 @@
+/*
+** C data management.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_tab.h"
+#include "lj_ctype.h"
+#include "lj_cconv.h"
+#include "lj_cdata.h"
+
+/* -- C data allocation --------------------------------------------------- */
+
+/* Allocate a new C data object holding a reference to another object. */
+GCcdata *lj_cdata_newref(CTState *cts, const void *p, CTypeID id)
+{
+  CTypeID refid = lj_ctype_intern(cts, CTINFO_REF(id), CTSIZE_PTR);
+  GCcdata *cd = lj_cdata_new(cts, refid, CTSIZE_PTR);
+  *(const void **)cdataptr(cd) = p;
+  return cd;
+}
+
+/* Allocate variable-sized or specially aligned C data object. */
+GCcdata *lj_cdata_newv(lua_State *L, CTypeID id, CTSize sz, CTSize align)
+{
+  global_State *g;
+  MSize extra = sizeof(GCcdataVar) + sizeof(GCcdata) +
+		(align > CT_MEMALIGN ? (1u<<align) - (1u<<CT_MEMALIGN) : 0);
+  char *p = lj_mem_newt(L, extra + sz, char);
+  uintptr_t adata = (uintptr_t)p + sizeof(GCcdataVar) + sizeof(GCcdata);
+  uintptr_t almask = (1u << align) - 1u;
+  GCcdata *cd = (GCcdata *)(((adata + almask) & ~almask) - sizeof(GCcdata));
+  lj_assertL((char *)cd - p < 65536, "excessive cdata alignment");
+  cdatav(cd)->offset = (uint16_t)((char *)cd - p);
+  cdatav(cd)->extra = extra;
+  cdatav(cd)->len = sz;
+  g = G(L);
+  setgcrefr(cd->nextgc, g->gc.root);
+  setgcref(g->gc.root, obj2gco(cd));
+  newwhite(g, obj2gco(cd));
+  cd->marked |= 0x80;
+  cd->gct = ~LJ_TCDATA;
+  cd->ctypeid = id;
+  return cd;
+}
+
+/* Allocate arbitrary C data object. */
+GCcdata *lj_cdata_newx(CTState *cts, CTypeID id, CTSize sz, CTInfo info)
+{
+  if (!(info & CTF_VLA) && ctype_align(info) <= CT_MEMALIGN)
+    return lj_cdata_new(cts, id, sz);
+  else
+    return lj_cdata_newv(cts->L, id, sz, ctype_align(info));
+}
+
+/* Free a C data object. */
+void LJ_FASTCALL lj_cdata_free(global_State *g, GCcdata *cd)
+{
+  if (LJ_UNLIKELY(cd->marked & LJ_GC_CDATA_FIN)) {
+    GCobj *root;
+    makewhite(g, obj2gco(cd));
+    markfinalized(obj2gco(cd));
+    if ((root = gcref(g->gc.mmudata)) != NULL) {
+      setgcrefr(cd->nextgc, root->gch.nextgc);
+      setgcref(root->gch.nextgc, obj2gco(cd));
+      setgcref(g->gc.mmudata, obj2gco(cd));
+    } else {
+      setgcref(cd->nextgc, obj2gco(cd));
+      setgcref(g->gc.mmudata, obj2gco(cd));
+    }
+  } else if (LJ_LIKELY(!cdataisv(cd))) {
+    CType *ct = ctype_raw(ctype_ctsG(g), cd->ctypeid);
+    CTSize sz = ctype_hassize(ct->info) ? ct->size : CTSIZE_PTR;
+    lj_assertG(ctype_hassize(ct->info) || ctype_isfunc(ct->info) ||
+	       ctype_isextern(ct->info), "free of ctype without a size");
+    lj_mem_free(g, cd, sizeof(GCcdata) + sz);
+  } else {
+    lj_mem_free(g, memcdatav(cd), sizecdatav(cd));
+  }
+}
+
+void lj_cdata_setfin(lua_State *L, GCcdata *cd, GCobj *obj, uint32_t it)
+{
+  GCtab *t = ctype_ctsG(G(L))->finalizer;
+  if (gcref(t->metatable)) {
+    /* Add cdata to finalizer table, if still enabled. */
+    TValue *tv, tmp;
+    setcdataV(L, &tmp, cd);
+    lj_gc_anybarriert(L, t);
+    tv = lj_tab_set(L, t, &tmp);
+    if (it == LJ_TNIL) {
+      setnilV(tv);
+      cd->marked &= ~LJ_GC_CDATA_FIN;
+    } else {
+      setgcV(L, tv, obj, it);
+      cd->marked |= LJ_GC_CDATA_FIN;
+    }
+  }
+}
+
+/* -- C data indexing ----------------------------------------------------- */
+
+/* Index C data by a TValue. Return CType and pointer. */
+CType *lj_cdata_index(CTState *cts, GCcdata *cd, cTValue *key, uint8_t **pp,
+		      CTInfo *qual)
+{
+  uint8_t *p = (uint8_t *)cdataptr(cd);
+  CType *ct = ctype_get(cts, cd->ctypeid);
+  ptrdiff_t idx;
+
+  /* Resolve reference for cdata object. */
+  if (ctype_isref(ct->info)) {
+    lj_assertCTS(ct->size == CTSIZE_PTR, "ref is not pointer-sized");
+    p = *(uint8_t **)p;
+    ct = ctype_child(cts, ct);
+  }
+
+collect_attrib:
+  /* Skip attributes and collect qualifiers. */
+  while (ctype_isattrib(ct->info)) {
+    if (ctype_attrib(ct->info) == CTA_QUAL) *qual |= ct->size;
+    ct = ctype_child(cts, ct);
+  }
+  /* Interning rejects refs to refs. */
+  lj_assertCTS(!ctype_isref(ct->info), "bad ref of ref");
+
+  if (tvisint(key)) {
+    idx = (ptrdiff_t)intV(key);
+    goto integer_key;
+  } else if (tvisnum(key)) {  /* Numeric key. */
+#ifdef _MSC_VER
+    /* Workaround for MSVC bug. */
+    volatile
+#endif
+    lua_Number n = numV(key);
+    idx = LJ_64 ? (ptrdiff_t)n : (ptrdiff_t)lj_num2int(n);
+  integer_key:
+    if (ctype_ispointer(ct->info)) {
+      CTSize sz = lj_ctype_size(cts, ctype_cid(ct->info));  /* Element size. */
+      if (sz == CTSIZE_INVALID)
+	lj_err_caller(cts->L, LJ_ERR_FFI_INVSIZE);
+      if (ctype_isptr(ct->info)) {
+	p = (uint8_t *)cdata_getptr(p, ct->size);
+      } else if ((ct->info & (CTF_VECTOR|CTF_COMPLEX))) {
+	if ((ct->info & CTF_COMPLEX)) idx &= 1;
+	*qual |= CTF_CONST;  /* Valarray elements are constant. */
+      }
+      *pp = p + idx*(int32_t)sz;
+      return ct;
+    }
+  } else if (tviscdata(key)) {  /* Integer cdata key. */
+    GCcdata *cdk = cdataV(key);
+    CType *ctk = ctype_raw(cts, cdk->ctypeid);
+    if (ctype_isenum(ctk->info)) ctk = ctype_child(cts, ctk);
+    if (ctype_isinteger(ctk->info)) {
+      lj_cconv_ct_ct(cts, ctype_get(cts, CTID_INT_PSZ), ctk,
+		     (uint8_t *)&idx, cdataptr(cdk), 0);
+      goto integer_key;
+    }
+  } else if (tvisstr(key)) {  /* String key. */
+    GCstr *name = strV(key);
+    if (ctype_isstruct(ct->info)) {
+      CTSize ofs;
+      CType *fct = lj_ctype_getfieldq(cts, ct, name, &ofs, qual);
+      if (fct) {
+	*pp = p + ofs;
+	return fct;
+      }
+    } else if (ctype_iscomplex(ct->info)) {
+      if (name->len == 2) {
+	*qual |= CTF_CONST;  /* Complex fields are constant. */
+	if (strdata(name)[0] == 'r' && strdata(name)[1] == 'e') {
+	  *pp = p;
+	  return ct;
+	} else if (strdata(name)[0] == 'i' && strdata(name)[1] == 'm') {
+	  *pp = p + (ct->size >> 1);
+	  return ct;
+	}
+      }
+    } else if (cd->ctypeid == CTID_CTYPEID) {
+      /* Allow indexing a (pointer to) struct constructor to get constants. */
+      CType *sct = ctype_raw(cts, *(CTypeID *)p);
+      if (ctype_isptr(sct->info))
+	sct = ctype_rawchild(cts, sct);
+      if (ctype_isstruct(sct->info)) {
+	CTSize ofs;
+	CType *fct = lj_ctype_getfield(cts, sct, name, &ofs);
+	if (fct && ctype_isconstval(fct->info))
+	  return fct;
+      }
+      ct = sct;  /* Allow resolving metamethods for constructors, too. */
+    }
+  }
+  if (ctype_isptr(ct->info)) {  /* Automatically perform '->'. */
+    if (ctype_isstruct(ctype_rawchild(cts, ct)->info)) {
+      p = (uint8_t *)cdata_getptr(p, ct->size);
+      ct = ctype_child(cts, ct);
+      goto collect_attrib;
+    }
+  }
+  *qual |= 1;  /* Lookup failed. */
+  return ct;  /* But return the resolved raw type. */
+}
+
+/* -- C data getters ------------------------------------------------------ */
+
+/* Get constant value and convert to TValue. */
+static void cdata_getconst(CTState *cts, TValue *o, CType *ct)
+{
+  CType *ctt = ctype_child(cts, ct);
+  lj_assertCTS(ctype_isinteger(ctt->info) && ctt->size <= 4,
+	       "only 32 bit const supported");  /* NYI */
+  /* Constants are already zero-extended/sign-extended to 32 bits. */
+  if ((ctt->info & CTF_UNSIGNED) && (int32_t)ct->size < 0)
+    setnumV(o, (lua_Number)(uint32_t)ct->size);
+  else
+    setintV(o, (int32_t)ct->size);
+}
+
+/* Get C data value and convert to TValue. */
+int lj_cdata_get(CTState *cts, CType *s, TValue *o, uint8_t *sp)
+{
+  CTypeID sid;
+
+  if (ctype_isconstval(s->info)) {
+    cdata_getconst(cts, o, s);
+    return 0;  /* No GC step needed. */
+  } else if (ctype_isbitfield(s->info)) {
+    return lj_cconv_tv_bf(cts, s, o, sp);
+  }
+
+  /* Get child type of pointer/array/field. */
+  lj_assertCTS(ctype_ispointer(s->info) || ctype_isfield(s->info),
+	       "pointer or field expected");
+  sid = ctype_cid(s->info);
+  s = ctype_get(cts, sid);
+
+  /* Resolve reference for field. */
+  if (ctype_isref(s->info)) {
+    lj_assertCTS(s->size == CTSIZE_PTR, "ref is not pointer-sized");
+    sp = *(uint8_t **)sp;
+    sid = ctype_cid(s->info);
+    s = ctype_get(cts, sid);
+  }
+
+  /* Skip attributes. */
+  while (ctype_isattrib(s->info))
+    s = ctype_child(cts, s);
+
+  return lj_cconv_tv_ct(cts, s, sid, o, sp);
+}
+
+/* -- C data setters ------------------------------------------------------ */
+
+/* Convert TValue and set C data value. */
+void lj_cdata_set(CTState *cts, CType *d, uint8_t *dp, TValue *o, CTInfo qual)
+{
+  if (ctype_isconstval(d->info)) {
+    goto err_const;
+  } else if (ctype_isbitfield(d->info)) {
+    if (((d->info|qual) & CTF_CONST)) goto err_const;
+    lj_cconv_bf_tv(cts, d, dp, o);
+    return;
+  }
+
+  /* Get child type of pointer/array/field. */
+  lj_assertCTS(ctype_ispointer(d->info) || ctype_isfield(d->info),
+	       "pointer or field expected");
+  d = ctype_child(cts, d);
+
+  /* Resolve reference for field. */
+  if (ctype_isref(d->info)) {
+    lj_assertCTS(d->size == CTSIZE_PTR, "ref is not pointer-sized");
+    dp = *(uint8_t **)dp;
+    d = ctype_child(cts, d);
+  }
+
+  /* Skip attributes and collect qualifiers. */
+  for (;;) {
+    if (ctype_isattrib(d->info)) {
+      if (ctype_attrib(d->info) == CTA_QUAL) qual |= d->size;
+    } else {
+      break;
+    }
+    d = ctype_child(cts, d);
+  }
+
+  lj_assertCTS(ctype_hassize(d->info), "store to ctype without size");
+  lj_assertCTS(!ctype_isvoid(d->info), "store to void type");
+
+  if (((d->info|qual) & CTF_CONST)) {
+  err_const:
+    lj_err_caller(cts->L, LJ_ERR_FFI_WRCONST);
+  }
+
+  lj_cconv_ct_tv(cts, d, dp, o, 0);
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_cdata.h b/libs/luajit-cmake/luajit/src/lj_cdata.h
new file mode 100644
index 0000000..de52e8a
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_cdata.h
@@ -0,0 +1,79 @@
+/*
+** C data management.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CDATA_H
+#define _LJ_CDATA_H
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_ctype.h"
+
+#if LJ_HASFFI
+
+/* Get C data pointer. */
+static LJ_AINLINE void *cdata_getptr(void *p, CTSize sz)
+{
+  if (LJ_64 && sz == 4) {  /* Support 32 bit pointers on 64 bit targets. */
+    return ((void *)(uintptr_t)*(uint32_t *)p);
+  } else {
+    lj_assertX(sz == CTSIZE_PTR, "bad pointer size %d", sz);
+    return *(void **)p;
+  }
+}
+
+/* Set C data pointer. */
+static LJ_AINLINE void cdata_setptr(void *p, CTSize sz, const void *v)
+{
+  if (LJ_64 && sz == 4) {  /* Support 32 bit pointers on 64 bit targets. */
+    *(uint32_t *)p = (uint32_t)(uintptr_t)v;
+  } else {
+    lj_assertX(sz == CTSIZE_PTR, "bad pointer size %d", sz);
+    *(void **)p = (void *)v;
+  }
+}
+
+/* Allocate fixed-size C data object. */
+static LJ_AINLINE GCcdata *lj_cdata_new(CTState *cts, CTypeID id, CTSize sz)
+{
+  GCcdata *cd;
+#ifdef LUA_USE_ASSERT
+  CType *ct = ctype_raw(cts, id);
+  lj_assertCTS((ctype_hassize(ct->info) ? ct->size : CTSIZE_PTR) == sz,
+	       "inconsistent size of fixed-size cdata alloc");
+#endif
+  cd = (GCcdata *)lj_mem_newgco(cts->L, sizeof(GCcdata) + sz);
+  cd->gct = ~LJ_TCDATA;
+  cd->ctypeid = ctype_check(cts, id);
+  return cd;
+}
+
+/* Variant which works without a valid CTState. */
+static LJ_AINLINE GCcdata *lj_cdata_new_(lua_State *L, CTypeID id, CTSize sz)
+{
+  GCcdata *cd = (GCcdata *)lj_mem_newgco(L, sizeof(GCcdata) + sz);
+  cd->gct = ~LJ_TCDATA;
+  cd->ctypeid = id;
+  return cd;
+}
+
+LJ_FUNC GCcdata *lj_cdata_newref(CTState *cts, const void *pp, CTypeID id);
+LJ_FUNC GCcdata *lj_cdata_newv(lua_State *L, CTypeID id, CTSize sz,
+			       CTSize align);
+LJ_FUNC GCcdata *lj_cdata_newx(CTState *cts, CTypeID id, CTSize sz,
+			       CTInfo info);
+
+LJ_FUNC void LJ_FASTCALL lj_cdata_free(global_State *g, GCcdata *cd);
+LJ_FUNC void lj_cdata_setfin(lua_State *L, GCcdata *cd, GCobj *obj,
+			     uint32_t it);
+
+LJ_FUNC CType *lj_cdata_index(CTState *cts, GCcdata *cd, cTValue *key,
+			      uint8_t **pp, CTInfo *qual);
+LJ_FUNC int lj_cdata_get(CTState *cts, CType *s, TValue *o, uint8_t *sp);
+LJ_FUNC void lj_cdata_set(CTState *cts, CType *d, uint8_t *dp, TValue *o,
+			  CTInfo qual);
+
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_char.c b/libs/luajit-cmake/luajit/src/lj_char.c
new file mode 100644
index 0000000..11f23ef
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_char.c
@@ -0,0 +1,43 @@
+/*
+** Character types.
+** Donated to the public domain.
+**
+** This is intended to replace the problematic libc single-byte NLS functions.
+** These just don't make sense anymore with UTF-8 locales becoming the norm
+** on POSIX systems. It never worked too well on Windows systems since hardly
+** anyone bothered to call setlocale().
+**
+** This table is hardcoded for ASCII. Identifiers include the characters
+** 128-255, too. This allows for the use of all non-ASCII chars as identifiers
+** in the lexer. This is a broad definition, but works well in practice
+** for both UTF-8 locales and most single-byte locales (such as ISO-8859-*).
+**
+** If you really need proper character types for UTF-8 strings, please use
+** an add-on library such as slnunicode: http://luaforge.net/projects/sln/
+*/
+
+#define lj_char_c
+#define LUA_CORE
+
+#include "lj_char.h"
+
+LJ_DATADEF const uint8_t lj_char_bits[257] = {
+    0,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  3,  3,  3,  3,  3,  1,  1,
+    1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+    2,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,  4,
+  152,152,152,152,152,152,152,152,152,152,  4,  4,  4,  4,  4,  4,
+    4,176,176,176,176,176,176,160,160,160,160,160,160,160,160,160,
+  160,160,160,160,160,160,160,160,160,160,160,  4,  4,  4,  4,132,
+    4,208,208,208,208,208,208,192,192,192,192,192,192,192,192,192,
+  192,192,192,192,192,192,192,192,192,192,192,  4,  4,  4,  4,  1,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
+  128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128
+};
+
diff --git a/libs/luajit-cmake/luajit/src/lj_char.h b/libs/luajit-cmake/luajit/src/lj_char.h
new file mode 100644
index 0000000..c3c86d3
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_char.h
@@ -0,0 +1,42 @@
+/*
+** Character types.
+** Donated to the public domain.
+*/
+
+#ifndef _LJ_CHAR_H
+#define _LJ_CHAR_H
+
+#include "lj_def.h"
+
+#define LJ_CHAR_CNTRL	0x01
+#define LJ_CHAR_SPACE	0x02
+#define LJ_CHAR_PUNCT	0x04
+#define LJ_CHAR_DIGIT	0x08
+#define LJ_CHAR_XDIGIT	0x10
+#define LJ_CHAR_UPPER	0x20
+#define LJ_CHAR_LOWER	0x40
+#define LJ_CHAR_IDENT	0x80
+#define LJ_CHAR_ALPHA	(LJ_CHAR_LOWER|LJ_CHAR_UPPER)
+#define LJ_CHAR_ALNUM	(LJ_CHAR_ALPHA|LJ_CHAR_DIGIT)
+#define LJ_CHAR_GRAPH	(LJ_CHAR_ALNUM|LJ_CHAR_PUNCT)
+
+/* Only pass -1 or 0..255 to these macros. Never pass a signed char! */
+#define lj_char_isa(c, t)	((lj_char_bits+1)[(c)] & t)
+#define lj_char_iscntrl(c)	lj_char_isa((c), LJ_CHAR_CNTRL)
+#define lj_char_isspace(c)	lj_char_isa((c), LJ_CHAR_SPACE)
+#define lj_char_ispunct(c)	lj_char_isa((c), LJ_CHAR_PUNCT)
+#define lj_char_isdigit(c)	lj_char_isa((c), LJ_CHAR_DIGIT)
+#define lj_char_isxdigit(c)	lj_char_isa((c), LJ_CHAR_XDIGIT)
+#define lj_char_isupper(c)	lj_char_isa((c), LJ_CHAR_UPPER)
+#define lj_char_islower(c)	lj_char_isa((c), LJ_CHAR_LOWER)
+#define lj_char_isident(c)	lj_char_isa((c), LJ_CHAR_IDENT)
+#define lj_char_isalpha(c)	lj_char_isa((c), LJ_CHAR_ALPHA)
+#define lj_char_isalnum(c)	lj_char_isa((c), LJ_CHAR_ALNUM)
+#define lj_char_isgraph(c)	lj_char_isa((c), LJ_CHAR_GRAPH)
+
+#define lj_char_toupper(c)	((c) - (lj_char_islower(c) >> 1))
+#define lj_char_tolower(c)	((c) + lj_char_isupper(c))
+
+LJ_DATA const uint8_t lj_char_bits[257];
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_clib.c b/libs/luajit-cmake/luajit/src/lj_clib.c
new file mode 100644
index 0000000..f0ef6ed
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_clib.c
@@ -0,0 +1,434 @@
+/*
+** FFI C library loader.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_tab.h"
+#include "lj_str.h"
+#include "lj_udata.h"
+#include "lj_ctype.h"
+#include "lj_cconv.h"
+#include "lj_cdata.h"
+#include "lj_clib.h"
+#include "lj_strfmt.h"
+
+/* -- OS-specific functions ----------------------------------------------- */
+
+#if LJ_TARGET_DLOPEN
+
+#include <dlfcn.h>
+#include <stdio.h>
+
+#if defined(RTLD_DEFAULT) && !defined(NO_RTLD_DEFAULT)
+#define CLIB_DEFHANDLE	RTLD_DEFAULT
+#elif LJ_TARGET_OSX || LJ_TARGET_BSD
+#define CLIB_DEFHANDLE	((void *)(intptr_t)-2)
+#else
+#define CLIB_DEFHANDLE	NULL
+#endif
+
+LJ_NORET LJ_NOINLINE static void clib_error_(lua_State *L)
+{
+  lj_err_callermsg(L, dlerror());
+}
+
+#define clib_error(L, fmt, name)	clib_error_(L)
+
+#if LJ_TARGET_CYGWIN
+#define CLIB_SOPREFIX	"cyg"
+#else
+#define CLIB_SOPREFIX	"lib"
+#endif
+
+#if LJ_TARGET_OSX
+#define CLIB_SOEXT	"%s.dylib"
+#elif LJ_TARGET_CYGWIN
+#define CLIB_SOEXT	"%s.dll"
+#else
+#define CLIB_SOEXT	"%s.so"
+#endif
+
+static const char *clib_extname(lua_State *L, const char *name)
+{
+  if (!strchr(name, '/')
+#if LJ_TARGET_CYGWIN
+      && !strchr(name, '\\')
+#endif
+     ) {
+    if (!strchr(name, '.')) {
+      name = lj_strfmt_pushf(L, CLIB_SOEXT, name);
+      L->top--;
+#if LJ_TARGET_CYGWIN
+    } else {
+      return name;
+#endif
+    }
+    if (!(name[0] == CLIB_SOPREFIX[0] && name[1] == CLIB_SOPREFIX[1] &&
+	  name[2] == CLIB_SOPREFIX[2])) {
+      name = lj_strfmt_pushf(L, CLIB_SOPREFIX "%s", name);
+      L->top--;
+    }
+  }
+  return name;
+}
+
+/* Check for a recognized ld script line. */
+static const char *clib_check_lds(lua_State *L, const char *buf)
+{
+  char *p, *e;
+  if ((!strncmp(buf, "GROUP", 5) || !strncmp(buf, "INPUT", 5)) &&
+      (p = strchr(buf, '('))) {
+    while (*++p == ' ') ;
+    for (e = p; *e && *e != ' ' && *e != ')'; e++) ;
+    return strdata(lj_str_new(L, p, e-p));
+  }
+  return NULL;
+}
+
+/* Quick and dirty solution to resolve shared library name from ld script. */
+static const char *clib_resolve_lds(lua_State *L, const char *name)
+{
+  FILE *fp = fopen(name, "r");
+  const char *p = NULL;
+  if (fp) {
+    char buf[256];
+    if (fgets(buf, sizeof(buf), fp)) {
+      if (!strncmp(buf, "/* GNU ld script", 16)) {  /* ld script magic? */
+	while (fgets(buf, sizeof(buf), fp)) {  /* Check all lines. */
+	  p = clib_check_lds(L, buf);
+	  if (p) break;
+	}
+      } else {  /* Otherwise check only the first line. */
+	p = clib_check_lds(L, buf);
+      }
+    }
+    fclose(fp);
+  }
+  return p;
+}
+
+static void *clib_loadlib(lua_State *L, const char *name, int global)
+{
+  void *h = dlopen(clib_extname(L, name),
+		   RTLD_LAZY | (global?RTLD_GLOBAL:RTLD_LOCAL));
+  if (!h) {
+    const char *e, *err = dlerror();
+    if (err && *err == '/' && (e = strchr(err, ':')) &&
+	(name = clib_resolve_lds(L, strdata(lj_str_new(L, err, e-err))))) {
+      h = dlopen(name, RTLD_LAZY | (global?RTLD_GLOBAL:RTLD_LOCAL));
+      if (h) return h;
+      err = dlerror();
+    }
+    if (!err) err = "dlopen failed";
+    lj_err_callermsg(L, err);
+  }
+  return h;
+}
+
+static void clib_unloadlib(CLibrary *cl)
+{
+  if (cl->handle && cl->handle != CLIB_DEFHANDLE)
+    dlclose(cl->handle);
+}
+
+static void *clib_getsym(CLibrary *cl, const char *name)
+{
+  void *p = dlsym(cl->handle, name);
+  return p;
+}
+
+#elif LJ_TARGET_WINDOWS
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#ifndef GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS
+#define GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS	4
+#define GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT	2
+BOOL WINAPI GetModuleHandleExA(DWORD, LPCSTR, HMODULE*);
+#endif
+
+#define CLIB_DEFHANDLE	((void *)-1)
+
+/* Default libraries. */
+enum {
+  CLIB_HANDLE_EXE,
+#if !LJ_TARGET_UWP
+  CLIB_HANDLE_DLL,
+  CLIB_HANDLE_CRT,
+  CLIB_HANDLE_KERNEL32,
+  CLIB_HANDLE_USER32,
+  CLIB_HANDLE_GDI32,
+#endif
+  CLIB_HANDLE_MAX
+};
+
+static void *clib_def_handle[CLIB_HANDLE_MAX];
+
+LJ_NORET LJ_NOINLINE static void clib_error(lua_State *L, const char *fmt,
+					    const char *name)
+{
+  DWORD err = GetLastError();
+#if LJ_TARGET_XBOXONE
+  wchar_t wbuf[128];
+  char buf[128*2];
+  if (!FormatMessageW(FORMAT_MESSAGE_IGNORE_INSERTS|FORMAT_MESSAGE_FROM_SYSTEM,
+		      NULL, err, 0, wbuf, sizeof(wbuf)/sizeof(wchar_t), NULL) ||
+      !WideCharToMultiByte(CP_ACP, 0, wbuf, 128, buf, 128*2, NULL, NULL))
+#else
+  char buf[128];
+  if (!FormatMessageA(FORMAT_MESSAGE_IGNORE_INSERTS|FORMAT_MESSAGE_FROM_SYSTEM,
+		      NULL, err, 0, buf, sizeof(buf), NULL))
+#endif
+    buf[0] = '\0';
+  lj_err_callermsg(L, lj_strfmt_pushf(L, fmt, name, buf));
+}
+
+static int clib_needext(const char *s)
+{
+  while (*s) {
+    if (*s == '/' || *s == '\\' || *s == '.') return 0;
+    s++;
+  }
+  return 1;
+}
+
+static const char *clib_extname(lua_State *L, const char *name)
+{
+  if (clib_needext(name)) {
+    name = lj_strfmt_pushf(L, "%s.dll", name);
+    L->top--;
+  }
+  return name;
+}
+
+static void *clib_loadlib(lua_State *L, const char *name, int global)
+{
+  DWORD oldwerr = GetLastError();
+  void *h = LJ_WIN_LOADLIBA(clib_extname(L, name));
+  if (!h) clib_error(L, "cannot load module " LUA_QS ": %s", name);
+  SetLastError(oldwerr);
+  UNUSED(global);
+  return h;
+}
+
+static void clib_unloadlib(CLibrary *cl)
+{
+  if (cl->handle == CLIB_DEFHANDLE) {
+#if !LJ_TARGET_UWP
+    MSize i;
+    for (i = CLIB_HANDLE_KERNEL32; i < CLIB_HANDLE_MAX; i++) {
+      void *h = clib_def_handle[i];
+      if (h) {
+	clib_def_handle[i] = NULL;
+	FreeLibrary((HINSTANCE)h);
+      }
+    }
+#endif
+  } else if (cl->handle) {
+    FreeLibrary((HINSTANCE)cl->handle);
+  }
+}
+
+#if LJ_TARGET_UWP
+EXTERN_C IMAGE_DOS_HEADER __ImageBase;
+#endif
+
+static void *clib_getsym(CLibrary *cl, const char *name)
+{
+  void *p = NULL;
+  if (cl->handle == CLIB_DEFHANDLE) {  /* Search default libraries. */
+    MSize i;
+    for (i = 0; i < CLIB_HANDLE_MAX; i++) {
+      HINSTANCE h = (HINSTANCE)clib_def_handle[i];
+      if (!(void *)h) {  /* Resolve default library handles (once). */
+#if LJ_TARGET_UWP
+	h = (HINSTANCE)&__ImageBase;
+#else
+	switch (i) {
+	case CLIB_HANDLE_EXE: GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT, NULL, &h); break;
+	case CLIB_HANDLE_DLL:
+	  GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS|GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
+			     (const char *)clib_def_handle, &h);
+	  break;
+	case CLIB_HANDLE_CRT:
+	  GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS|GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
+			     (const char *)&_fmode, &h);
+	  break;
+	case CLIB_HANDLE_KERNEL32: h = LJ_WIN_LOADLIBA("kernel32.dll"); break;
+	case CLIB_HANDLE_USER32: h = LJ_WIN_LOADLIBA("user32.dll"); break;
+	case CLIB_HANDLE_GDI32: h = LJ_WIN_LOADLIBA("gdi32.dll"); break;
+	}
+	if (!h) continue;
+#endif
+	clib_def_handle[i] = (void *)h;
+      }
+      p = (void *)GetProcAddress(h, name);
+      if (p) break;
+    }
+  } else {
+    p = (void *)GetProcAddress((HINSTANCE)cl->handle, name);
+  }
+  return p;
+}
+
+#else
+
+#define CLIB_DEFHANDLE	NULL
+
+LJ_NORET LJ_NOINLINE static void clib_error(lua_State *L, const char *fmt,
+					    const char *name)
+{
+  lj_err_callermsg(L, lj_strfmt_pushf(L, fmt, name, "no support for this OS"));
+}
+
+static void *clib_loadlib(lua_State *L, const char *name, int global)
+{
+  lj_err_callermsg(L, "no support for loading dynamic libraries for this OS");
+  UNUSED(name); UNUSED(global);
+  return NULL;
+}
+
+static void clib_unloadlib(CLibrary *cl)
+{
+  UNUSED(cl);
+}
+
+static void *clib_getsym(CLibrary *cl, const char *name)
+{
+  UNUSED(cl); UNUSED(name);
+  return NULL;
+}
+
+#endif
+
+/* -- C library indexing -------------------------------------------------- */
+
+#if LJ_TARGET_X86 && LJ_ABI_WIN
+/* Compute argument size for fastcall/stdcall functions. */
+static CTSize clib_func_argsize(CTState *cts, CType *ct)
+{
+  CTSize n = 0;
+  while (ct->sib) {
+    CType *d;
+    ct = ctype_get(cts, ct->sib);
+    if (ctype_isfield(ct->info)) {
+      d = ctype_rawchild(cts, ct);
+      n += ((d->size + 3) & ~3);
+    }
+  }
+  return n;
+}
+#endif
+
+/* Get redirected or mangled external symbol. */
+static const char *clib_extsym(CTState *cts, CType *ct, GCstr *name)
+{
+  if (ct->sib) {
+    CType *ctf = ctype_get(cts, ct->sib);
+    if (ctype_isxattrib(ctf->info, CTA_REDIR))
+      return strdata(gco2str(gcref(ctf->name)));
+  }
+  return strdata(name);
+}
+
+/* Index a C library by name. */
+TValue *lj_clib_index(lua_State *L, CLibrary *cl, GCstr *name)
+{
+  TValue *tv = lj_tab_setstr(L, cl->cache, name);
+  if (LJ_UNLIKELY(tvisnil(tv))) {
+    CTState *cts = ctype_cts(L);
+    CType *ct;
+    CTypeID id = lj_ctype_getname(cts, &ct, name, CLNS_INDEX);
+    if (!id)
+      lj_err_callerv(L, LJ_ERR_FFI_NODECL, strdata(name));
+    if (ctype_isconstval(ct->info)) {
+      CType *ctt = ctype_child(cts, ct);
+      lj_assertCTS(ctype_isinteger(ctt->info) && ctt->size <= 4,
+		   "only 32 bit const supported");  /* NYI */
+      if ((ctt->info & CTF_UNSIGNED) && (int32_t)ct->size < 0)
+	setnumV(tv, (lua_Number)(uint32_t)ct->size);
+      else
+	setintV(tv, (int32_t)ct->size);
+    } else {
+      const char *sym = clib_extsym(cts, ct, name);
+#if LJ_TARGET_WINDOWS
+      DWORD oldwerr = GetLastError();
+#endif
+      void *p = clib_getsym(cl, sym);
+      GCcdata *cd;
+      lj_assertCTS(ctype_isfunc(ct->info) || ctype_isextern(ct->info),
+		   "unexpected ctype %08x in clib", ct->info);
+#if LJ_TARGET_X86 && LJ_ABI_WIN
+      /* Retry with decorated name for fastcall/stdcall functions. */
+      if (!p && ctype_isfunc(ct->info)) {
+	CTInfo cconv = ctype_cconv(ct->info);
+	if (cconv == CTCC_FASTCALL || cconv == CTCC_STDCALL) {
+	  CTSize sz = clib_func_argsize(cts, ct);
+	  const char *symd = lj_strfmt_pushf(L,
+			       cconv == CTCC_FASTCALL ? "@%s@%d" : "_%s@%d",
+			       sym, sz);
+	  L->top--;
+	  p = clib_getsym(cl, symd);
+	}
+      }
+#endif
+      if (!p)
+	clib_error(L, "cannot resolve symbol " LUA_QS ": %s", sym);
+#if LJ_TARGET_WINDOWS
+      SetLastError(oldwerr);
+#endif
+      cd = lj_cdata_new(cts, id, CTSIZE_PTR);
+      *(void **)cdataptr(cd) = p;
+      setcdataV(L, tv, cd);
+      lj_gc_anybarriert(L, cl->cache);
+    }
+  }
+  return tv;
+}
+
+/* -- C library management ------------------------------------------------ */
+
+/* Create a new CLibrary object and push it on the stack. */
+static CLibrary *clib_new(lua_State *L, GCtab *mt)
+{
+  GCtab *t = lj_tab_new(L, 0, 0);
+  GCudata *ud = lj_udata_new(L, sizeof(CLibrary), t);
+  CLibrary *cl = (CLibrary *)uddata(ud);
+  cl->cache = t;
+  ud->udtype = UDTYPE_FFI_CLIB;
+  /* NOBARRIER: The GCudata is new (marked white). */
+  setgcref(ud->metatable, obj2gco(mt));
+  setudataV(L, L->top++, ud);
+  return cl;
+}
+
+/* Load a C library. */
+void lj_clib_load(lua_State *L, GCtab *mt, GCstr *name, int global)
+{
+  void *handle = clib_loadlib(L, strdata(name), global);
+  CLibrary *cl = clib_new(L, mt);
+  cl->handle = handle;
+}
+
+/* Unload a C library. */
+void lj_clib_unload(CLibrary *cl)
+{
+  clib_unloadlib(cl);
+  cl->handle = NULL;
+}
+
+/* Create the default C library object. */
+void lj_clib_default(lua_State *L, GCtab *mt)
+{
+  CLibrary *cl = clib_new(L, mt);
+  cl->handle = CLIB_DEFHANDLE;
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_clib.h b/libs/luajit-cmake/luajit/src/lj_clib.h
new file mode 100644
index 0000000..4429486
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_clib.h
@@ -0,0 +1,29 @@
+/*
+** FFI C library loader.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CLIB_H
+#define _LJ_CLIB_H
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+/* Namespace for C library indexing. */
+#define CLNS_INDEX	((1u<<CT_FUNC)|(1u<<CT_EXTERN)|(1u<<CT_CONSTVAL))
+
+/* C library namespace. */
+typedef struct CLibrary {
+  void *handle;		/* Opaque handle for dynamic library loader. */
+  GCtab *cache;		/* Cache for resolved symbols. Anchored in ud->env. */
+} CLibrary;
+
+LJ_FUNC TValue *lj_clib_index(lua_State *L, CLibrary *cl, GCstr *name);
+LJ_FUNC void lj_clib_load(lua_State *L, GCtab *mt, GCstr *name, int global);
+LJ_FUNC void lj_clib_unload(CLibrary *cl);
+LJ_FUNC void lj_clib_default(lua_State *L, GCtab *mt);
+
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_cparse.c b/libs/luajit-cmake/luajit/src/lj_cparse.c
new file mode 100644
index 0000000..7fd8399
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_cparse.c
@@ -0,0 +1,1927 @@
+/*
+** C declaration parser.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_ctype.h"
+#include "lj_cparse.h"
+#include "lj_frame.h"
+#include "lj_vm.h"
+#include "lj_char.h"
+#include "lj_strscan.h"
+#include "lj_strfmt.h"
+
+/*
+** Important note: this is NOT a validating C parser! This is a minimal
+** C declaration parser, solely for use by the LuaJIT FFI.
+**
+** It ought to return correct results for properly formed C declarations,
+** but it may accept some invalid declarations, too (and return nonsense).
+** Also, it shows rather generic error messages to avoid unnecessary bloat.
+** If in doubt, please check the input against your favorite C compiler.
+*/
+
+#ifdef LUA_USE_ASSERT
+#define lj_assertCP(c, ...)	(lj_assertG_(G(cp->L), (c), __VA_ARGS__))
+#else
+#define lj_assertCP(c, ...)	((void)cp)
+#endif
+
+/* -- Miscellaneous ------------------------------------------------------- */
+
+/* Match string against a C literal. */
+#define cp_str_is(str, k) \
+  ((str)->len == sizeof(k)-1 && !memcmp(strdata(str), k, sizeof(k)-1))
+
+/* Check string against a linear list of matches. */
+int lj_cparse_case(GCstr *str, const char *match)
+{
+  MSize len;
+  int n;
+  for  (n = 0; (len = (MSize)*match++); n++, match += len) {
+    if (str->len == len && !memcmp(match, strdata(str), len))
+      return n;
+  }
+  return -1;
+}
+
+/* -- C lexer ------------------------------------------------------------- */
+
+/* C lexer token names. */
+static const char *const ctoknames[] = {
+#define CTOKSTR(name, str)	str,
+CTOKDEF(CTOKSTR)
+#undef CTOKSTR
+  NULL
+};
+
+/* Forward declaration. */
+LJ_NORET static void cp_err(CPState *cp, ErrMsg em);
+
+static const char *cp_tok2str(CPState *cp, CPToken tok)
+{
+  lj_assertCP(tok < CTOK_FIRSTDECL, "bad CPToken %d", tok);
+  if (tok > CTOK_OFS)
+    return ctoknames[tok-CTOK_OFS-1];
+  else if (!lj_char_iscntrl(tok))
+    return lj_strfmt_pushf(cp->L, "%c", tok);
+  else
+    return lj_strfmt_pushf(cp->L, "char(%d)", tok);
+}
+
+/* End-of-line? */
+static LJ_AINLINE int cp_iseol(CPChar c)
+{
+  return (c == '\n' || c == '\r');
+}
+
+/* Peek next raw character. */
+static LJ_AINLINE CPChar cp_rawpeek(CPState *cp)
+{
+  return (CPChar)(uint8_t)(*cp->p);
+}
+
+static LJ_NOINLINE CPChar cp_get_bs(CPState *cp);
+
+/* Get next character. */
+static LJ_AINLINE CPChar cp_get(CPState *cp)
+{
+  cp->c = (CPChar)(uint8_t)(*cp->p++);
+  if (LJ_LIKELY(cp->c != '\\')) return cp->c;
+  return cp_get_bs(cp);
+}
+
+/* Transparently skip backslash-escaped line breaks. */
+static LJ_NOINLINE CPChar cp_get_bs(CPState *cp)
+{
+  CPChar c2, c = cp_rawpeek(cp);
+  if (!cp_iseol(c)) return cp->c;
+  cp->p++;
+  c2 = cp_rawpeek(cp);
+  if (cp_iseol(c2) && c2 != c) cp->p++;
+  cp->linenumber++;
+  return cp_get(cp);
+}
+
+/* Save character in buffer. */
+static LJ_AINLINE void cp_save(CPState *cp, CPChar c)
+{
+  lj_buf_putb(&cp->sb, c);
+}
+
+/* Skip line break. Handles "\n", "\r", "\r\n" or "\n\r". */
+static void cp_newline(CPState *cp)
+{
+  CPChar c = cp_rawpeek(cp);
+  if (cp_iseol(c) && c != cp->c) cp->p++;
+  cp->linenumber++;
+}
+
+LJ_NORET static void cp_errmsg(CPState *cp, CPToken tok, ErrMsg em, ...)
+{
+  const char *msg, *tokstr;
+  lua_State *L;
+  va_list argp;
+  if (tok == 0) {
+    tokstr = NULL;
+  } else if (tok == CTOK_IDENT || tok == CTOK_INTEGER || tok == CTOK_STRING ||
+	     tok >= CTOK_FIRSTDECL) {
+    if (cp->sb.w == cp->sb.b) cp_save(cp, '$');
+    cp_save(cp, '\0');
+    tokstr = cp->sb.b;
+  } else {
+    tokstr = cp_tok2str(cp, tok);
+  }
+  L = cp->L;
+  va_start(argp, em);
+  msg = lj_strfmt_pushvf(L, err2msg(em), argp);
+  va_end(argp);
+  if (tokstr)
+    msg = lj_strfmt_pushf(L, err2msg(LJ_ERR_XNEAR), msg, tokstr);
+  if (cp->linenumber > 1)
+    msg = lj_strfmt_pushf(L, "%s at line %d", msg, cp->linenumber);
+  lj_err_callermsg(L, msg);
+}
+
+LJ_NORET LJ_NOINLINE static void cp_err_token(CPState *cp, CPToken tok)
+{
+  cp_errmsg(cp, cp->tok, LJ_ERR_XTOKEN, cp_tok2str(cp, tok));
+}
+
+LJ_NORET LJ_NOINLINE static void cp_err_badidx(CPState *cp, CType *ct)
+{
+  GCstr *s = lj_ctype_repr(cp->cts->L, ctype_typeid(cp->cts, ct), NULL);
+  cp_errmsg(cp, 0, LJ_ERR_FFI_BADIDX, strdata(s));
+}
+
+LJ_NORET LJ_NOINLINE static void cp_err(CPState *cp, ErrMsg em)
+{
+  cp_errmsg(cp, 0, em);
+}
+
+/* -- Main lexical scanner ------------------------------------------------ */
+
+/* Parse number literal. Only handles int32_t/uint32_t right now. */
+static CPToken cp_number(CPState *cp)
+{
+  StrScanFmt fmt;
+  TValue o;
+  do { cp_save(cp, cp->c); } while (lj_char_isident(cp_get(cp)));
+  cp_save(cp, '\0');
+  fmt = lj_strscan_scan((const uint8_t *)(cp->sb.b), sbuflen(&cp->sb)-1,
+			&o, STRSCAN_OPT_C);
+  if (fmt == STRSCAN_INT) cp->val.id = CTID_INT32;
+  else if (fmt == STRSCAN_U32) cp->val.id = CTID_UINT32;
+  else if (!(cp->mode & CPARSE_MODE_SKIP))
+    cp_errmsg(cp, CTOK_INTEGER, LJ_ERR_XNUMBER);
+  cp->val.u32 = (uint32_t)o.i;
+  return CTOK_INTEGER;
+}
+
+/* Parse identifier or keyword. */
+static CPToken cp_ident(CPState *cp)
+{
+  do { cp_save(cp, cp->c); } while (lj_char_isident(cp_get(cp)));
+  cp->str = lj_buf_str(cp->L, &cp->sb);
+  cp->val.id = lj_ctype_getname(cp->cts, &cp->ct, cp->str, cp->tmask);
+  if (ctype_type(cp->ct->info) == CT_KW)
+    return ctype_cid(cp->ct->info);
+  return CTOK_IDENT;
+}
+
+/* Parse parameter. */
+static CPToken cp_param(CPState *cp)
+{
+  CPChar c = cp_get(cp);
+  TValue *o = cp->param;
+  if (lj_char_isident(c) || c == '$')  /* Reserve $xyz for future extensions. */
+    cp_errmsg(cp, c, LJ_ERR_XSYNTAX);
+  if (!o || o >= cp->L->top)
+    cp_err(cp, LJ_ERR_FFI_NUMPARAM);
+  cp->param = o+1;
+  if (tvisstr(o)) {
+    cp->str = strV(o);
+    cp->val.id = 0;
+    cp->ct = &cp->cts->tab[0];
+    return CTOK_IDENT;
+  } else if (tvisnumber(o)) {
+    cp->val.i32 = numberVint(o);
+    cp->val.id = CTID_INT32;
+    return CTOK_INTEGER;
+  } else {
+    GCcdata *cd;
+    if (!tviscdata(o))
+      lj_err_argtype(cp->L, (int)(o-cp->L->base)+1, "type parameter");
+    cd = cdataV(o);
+    if (cd->ctypeid == CTID_CTYPEID)
+      cp->val.id = *(CTypeID *)cdataptr(cd);
+    else
+      cp->val.id = cd->ctypeid;
+    return '$';
+  }
+}
+
+/* Parse string or character constant. */
+static CPToken cp_string(CPState *cp)
+{
+  CPChar delim = cp->c;
+  cp_get(cp);
+  while (cp->c != delim) {
+    CPChar c = cp->c;
+    if (c == '\0') cp_errmsg(cp, CTOK_EOF, LJ_ERR_XSTR);
+    if (c == '\\') {
+      c = cp_get(cp);
+      switch (c) {
+      case '\0': cp_errmsg(cp, CTOK_EOF, LJ_ERR_XSTR); break;
+      case 'a': c = '\a'; break;
+      case 'b': c = '\b'; break;
+      case 'f': c = '\f'; break;
+      case 'n': c = '\n'; break;
+      case 'r': c = '\r'; break;
+      case 't': c = '\t'; break;
+      case 'v': c = '\v'; break;
+      case 'e': c = 27; break;
+      case 'x':
+	c = 0;
+	while (lj_char_isxdigit(cp_get(cp)))
+	  c = (c<<4) + (lj_char_isdigit(cp->c) ? cp->c-'0' : (cp->c&15)+9);
+	cp_save(cp, (c & 0xff));
+	continue;
+      default:
+	if (lj_char_isdigit(c)) {
+	  c -= '0';
+	  if (lj_char_isdigit(cp_get(cp))) {
+	    c = c*8 + (cp->c - '0');
+	    if (lj_char_isdigit(cp_get(cp))) {
+	      c = c*8 + (cp->c - '0');
+	      cp_get(cp);
+	    }
+	  }
+	  cp_save(cp, (c & 0xff));
+	  continue;
+	}
+	break;
+      }
+    }
+    cp_save(cp, c);
+    cp_get(cp);
+  }
+  cp_get(cp);
+  if (delim == '"') {
+    cp->str = lj_buf_str(cp->L, &cp->sb);
+    return CTOK_STRING;
+  } else {
+    if (sbuflen(&cp->sb) != 1) cp_err_token(cp, '\'');
+    cp->val.i32 = (int32_t)(char)*cp->sb.b;
+    cp->val.id = CTID_INT32;
+    return CTOK_INTEGER;
+  }
+}
+
+/* Skip C comment. */
+static void cp_comment_c(CPState *cp)
+{
+  do {
+    if (cp_get(cp) == '*') {
+      do {
+	if (cp_get(cp) == '/') { cp_get(cp); return; }
+      } while (cp->c == '*');
+    }
+    if (cp_iseol(cp->c)) cp_newline(cp);
+  } while (cp->c != '\0');
+}
+
+/* Skip C++ comment. */
+static void cp_comment_cpp(CPState *cp)
+{
+  while (!cp_iseol(cp_get(cp)) && cp->c != '\0')
+    ;
+}
+
+/* Lexical scanner for C. Only a minimal subset is implemented. */
+static CPToken cp_next_(CPState *cp)
+{
+  lj_buf_reset(&cp->sb);
+  for (;;) {
+    if (lj_char_isident(cp->c))
+      return lj_char_isdigit(cp->c) ? cp_number(cp) : cp_ident(cp);
+    switch (cp->c) {
+    case '\n': case '\r': cp_newline(cp);  /* fallthrough. */
+    case ' ': case '\t': case '\v': case '\f': cp_get(cp); break;
+    case '"': case '\'': return cp_string(cp);
+    case '/':
+      if (cp_get(cp) == '*') cp_comment_c(cp);
+      else if (cp->c == '/') cp_comment_cpp(cp);
+      else return '/';
+      break;
+    case '|':
+      if (cp_get(cp) != '|') return '|';
+      cp_get(cp); return CTOK_OROR;
+    case '&':
+      if (cp_get(cp) != '&') return '&';
+      cp_get(cp); return CTOK_ANDAND;
+    case '=':
+      if (cp_get(cp) != '=') return '=';
+      cp_get(cp); return CTOK_EQ;
+    case '!':
+      if (cp_get(cp) != '=') return '!';
+      cp_get(cp); return CTOK_NE;
+    case '<':
+      if (cp_get(cp) == '=') { cp_get(cp); return CTOK_LE; }
+      else if (cp->c == '<') { cp_get(cp); return CTOK_SHL; }
+      return '<';
+    case '>':
+      if (cp_get(cp) == '=') { cp_get(cp); return CTOK_GE; }
+      else if (cp->c == '>') { cp_get(cp); return CTOK_SHR; }
+      return '>';
+    case '-':
+      if (cp_get(cp) != '>') return '-';
+      cp_get(cp); return CTOK_DEREF;
+    case '$':
+      return cp_param(cp);
+    case '\0': return CTOK_EOF;
+    default: { CPToken c = cp->c; cp_get(cp); return c; }
+    }
+  }
+}
+
+static LJ_NOINLINE CPToken cp_next(CPState *cp)
+{
+  return (cp->tok = cp_next_(cp));
+}
+
+/* -- C parser ------------------------------------------------------------ */
+
+/* Namespaces for resolving identifiers. */
+#define CPNS_DEFAULT \
+  ((1u<<CT_KW)|(1u<<CT_TYPEDEF)|(1u<<CT_FUNC)|(1u<<CT_EXTERN)|(1u<<CT_CONSTVAL))
+#define CPNS_STRUCT	((1u<<CT_KW)|(1u<<CT_STRUCT)|(1u<<CT_ENUM))
+
+typedef CTypeID CPDeclIdx;	/* Index into declaration stack. */
+typedef uint32_t CPscl;		/* Storage class flags. */
+
+/* Type declaration context. */
+typedef struct CPDecl {
+  CPDeclIdx top;	/* Top of declaration stack. */
+  CPDeclIdx pos;	/* Insertion position in declaration chain. */
+  CPDeclIdx specpos;	/* Saved position for declaration specifier. */
+  uint32_t mode;	/* Declarator mode. */
+  CPState *cp;		/* C parser state. */
+  GCstr *name;		/* Name of declared identifier (if direct). */
+  GCstr *redir;		/* Redirected symbol name. */
+  CTypeID nameid;	/* Existing typedef for declared identifier. */
+  CTInfo attr;		/* Attributes. */
+  CTInfo fattr;		/* Function attributes. */
+  CTInfo specattr;	/* Saved attributes. */
+  CTInfo specfattr;	/* Saved function attributes. */
+  CTSize bits;		/* Field size in bits (if any). */
+  CType stack[CPARSE_MAX_DECLSTACK];  /* Type declaration stack. */
+} CPDecl;
+
+/* Forward declarations. */
+static CPscl cp_decl_spec(CPState *cp, CPDecl *decl, CPscl scl);
+static void cp_declarator(CPState *cp, CPDecl *decl);
+static CTypeID cp_decl_abstract(CPState *cp);
+
+/* Initialize C parser state. Caller must set up: L, p, srcname, mode. */
+static void cp_init(CPState *cp)
+{
+  cp->linenumber = 1;
+  cp->depth = 0;
+  cp->curpack = 0;
+  cp->packstack[0] = 255;
+  lj_buf_init(cp->L, &cp->sb);
+  lj_assertCP(cp->p != NULL, "uninitialized cp->p");
+  cp_get(cp);  /* Read-ahead first char. */
+  cp->tok = 0;
+  cp->tmask = CPNS_DEFAULT;
+  cp_next(cp);  /* Read-ahead first token. */
+}
+
+/* Cleanup C parser state. */
+static void cp_cleanup(CPState *cp)
+{
+  global_State *g = G(cp->L);
+  lj_buf_free(g, &cp->sb);
+}
+
+/* Check and consume optional token. */
+static int cp_opt(CPState *cp, CPToken tok)
+{
+  if (cp->tok == tok) { cp_next(cp); return 1; }
+  return 0;
+}
+
+/* Check and consume token. */
+static void cp_check(CPState *cp, CPToken tok)
+{
+  if (cp->tok != tok) cp_err_token(cp, tok);
+  cp_next(cp);
+}
+
+/* Check if the next token may start a type declaration. */
+static int cp_istypedecl(CPState *cp)
+{
+  if (cp->tok >= CTOK_FIRSTDECL && cp->tok <= CTOK_LASTDECL) return 1;
+  if (cp->tok == CTOK_IDENT && ctype_istypedef(cp->ct->info)) return 1;
+  if (cp->tok == '$') return 1;
+  return 0;
+}
+
+/* -- Constant expression evaluator --------------------------------------- */
+
+/* Forward declarations. */
+static void cp_expr_unary(CPState *cp, CPValue *k);
+static void cp_expr_sub(CPState *cp, CPValue *k, int pri);
+
+/* Please note that type handling is very weak here. Most ops simply
+** assume integer operands. Accessors are only needed to compute types and
+** return synthetic values. The only purpose of the expression evaluator
+** is to compute the values of constant expressions one would typically
+** find in C header files. And again: this is NOT a validating C parser!
+*/
+
+/* Parse comma separated expression and return last result. */
+static void cp_expr_comma(CPState *cp, CPValue *k)
+{
+  do { cp_expr_sub(cp, k, 0); } while (cp_opt(cp, ','));
+}
+
+/* Parse sizeof/alignof operator. */
+static void cp_expr_sizeof(CPState *cp, CPValue *k, int wantsz)
+{
+  CTSize sz;
+  CTInfo info;
+  if (cp_opt(cp, '(')) {
+    if (cp_istypedecl(cp))
+      k->id = cp_decl_abstract(cp);
+    else
+      cp_expr_comma(cp, k);
+    cp_check(cp, ')');
+  } else {
+    cp_expr_unary(cp, k);
+  }
+  info = lj_ctype_info_raw(cp->cts, k->id, &sz);
+  if (wantsz) {
+    if (sz != CTSIZE_INVALID)
+      k->u32 = sz;
+    else if (k->id != CTID_A_CCHAR)  /* Special case for sizeof("string"). */
+      cp_err(cp, LJ_ERR_FFI_INVSIZE);
+  } else {
+    k->u32 = 1u << ctype_align(info);
+  }
+  k->id = CTID_UINT32;  /* Really size_t. */
+}
+
+/* Parse prefix operators. */
+static void cp_expr_prefix(CPState *cp, CPValue *k)
+{
+  if (cp->tok == CTOK_INTEGER) {
+    *k = cp->val; cp_next(cp);
+  } else if (cp_opt(cp, '+')) {
+    cp_expr_unary(cp, k);  /* Nothing to do (well, integer promotion). */
+  } else if (cp_opt(cp, '-')) {
+    cp_expr_unary(cp, k); k->i32 = -k->i32;
+  } else if (cp_opt(cp, '~')) {
+    cp_expr_unary(cp, k); k->i32 = ~k->i32;
+  } else if (cp_opt(cp, '!')) {
+    cp_expr_unary(cp, k); k->i32 = !k->i32; k->id = CTID_INT32;
+  } else if (cp_opt(cp, '(')) {
+    if (cp_istypedecl(cp)) {  /* Cast operator. */
+      CTypeID id = cp_decl_abstract(cp);
+      cp_check(cp, ')');
+      cp_expr_unary(cp, k);
+      k->id = id;  /* No conversion performed. */
+    } else {  /* Sub-expression. */
+      cp_expr_comma(cp, k);
+      cp_check(cp, ')');
+    }
+  } else if (cp_opt(cp, '*')) {  /* Indirection. */
+    CType *ct;
+    cp_expr_unary(cp, k);
+    ct = lj_ctype_rawref(cp->cts, k->id);
+    if (!ctype_ispointer(ct->info))
+      cp_err_badidx(cp, ct);
+    k->u32 = 0; k->id = ctype_cid(ct->info);
+  } else if (cp_opt(cp, '&')) {  /* Address operator. */
+    cp_expr_unary(cp, k);
+    k->id = lj_ctype_intern(cp->cts, CTINFO(CT_PTR, CTALIGN_PTR+k->id),
+			    CTSIZE_PTR);
+  } else if (cp_opt(cp, CTOK_SIZEOF)) {
+    cp_expr_sizeof(cp, k, 1);
+  } else if (cp_opt(cp, CTOK_ALIGNOF)) {
+    cp_expr_sizeof(cp, k, 0);
+  } else if (cp->tok == CTOK_IDENT) {
+    if (ctype_type(cp->ct->info) == CT_CONSTVAL) {
+      k->u32 = cp->ct->size; k->id = ctype_cid(cp->ct->info);
+    } else if (ctype_type(cp->ct->info) == CT_EXTERN) {
+      k->u32 = cp->val.id; k->id = ctype_cid(cp->ct->info);
+    } else if (ctype_type(cp->ct->info) == CT_FUNC) {
+      k->u32 = cp->val.id; k->id = cp->val.id;
+    } else {
+      goto err_expr;
+    }
+    cp_next(cp);
+  } else if (cp->tok == CTOK_STRING) {
+    CTSize sz = cp->str->len;
+    while (cp_next(cp) == CTOK_STRING)
+      sz += cp->str->len;
+    k->u32 = sz + 1;
+    k->id = CTID_A_CCHAR;
+  } else {
+  err_expr:
+    cp_errmsg(cp, cp->tok, LJ_ERR_XSYMBOL);
+  }
+}
+
+/* Parse postfix operators. */
+static void cp_expr_postfix(CPState *cp, CPValue *k)
+{
+  for (;;) {
+    CType *ct;
+    if (cp_opt(cp, '[')) {  /* Array/pointer index. */
+      CPValue k2;
+      cp_expr_comma(cp, &k2);
+      ct = lj_ctype_rawref(cp->cts, k->id);
+      if (!ctype_ispointer(ct->info)) {
+	ct = lj_ctype_rawref(cp->cts, k2.id);
+	if (!ctype_ispointer(ct->info))
+	  cp_err_badidx(cp, ct);
+      }
+      cp_check(cp, ']');
+      k->u32 = 0;
+    } else if (cp->tok == '.' || cp->tok == CTOK_DEREF) {  /* Struct deref. */
+      CTSize ofs;
+      CType *fct;
+      ct = lj_ctype_rawref(cp->cts, k->id);
+      if (cp->tok == CTOK_DEREF) {
+	if (!ctype_ispointer(ct->info))
+	  cp_err_badidx(cp, ct);
+	ct = lj_ctype_rawref(cp->cts, ctype_cid(ct->info));
+      }
+      cp_next(cp);
+      if (cp->tok != CTOK_IDENT) cp_err_token(cp, CTOK_IDENT);
+      if (!ctype_isstruct(ct->info) || ct->size == CTSIZE_INVALID ||
+	  !(fct = lj_ctype_getfield(cp->cts, ct, cp->str, &ofs)) ||
+	  ctype_isbitfield(fct->info)) {
+	GCstr *s = lj_ctype_repr(cp->cts->L, ctype_typeid(cp->cts, ct), NULL);
+	cp_errmsg(cp, 0, LJ_ERR_FFI_BADMEMBER, strdata(s), strdata(cp->str));
+      }
+      ct = fct;
+      k->u32 = ctype_isconstval(ct->info) ? ct->size : 0;
+      cp_next(cp);
+    } else {
+      return;
+    }
+    k->id = ctype_cid(ct->info);
+  }
+}
+
+/* Parse infix operators. */
+static void cp_expr_infix(CPState *cp, CPValue *k, int pri)
+{
+  CPValue k2;
+  k2.u32 = 0; k2.id = 0;  /* Silence the compiler. */
+  for (;;) {
+    switch (pri) {
+    case 0:
+      if (cp_opt(cp, '?')) {
+	CPValue k3;
+	cp_expr_comma(cp, &k2);  /* Right-associative. */
+	cp_check(cp, ':');
+	cp_expr_sub(cp, &k3, 0);
+	k->u32 = k->u32 ? k2.u32 : k3.u32;
+	k->id = k2.id > k3.id ? k2.id : k3.id;
+	continue;
+      }
+      /* fallthrough */
+    case 1:
+      if (cp_opt(cp, CTOK_OROR)) {
+	cp_expr_sub(cp, &k2, 2); k->i32 = k->u32 || k2.u32; k->id = CTID_INT32;
+	continue;
+      }
+      /* fallthrough */
+    case 2:
+      if (cp_opt(cp, CTOK_ANDAND)) {
+	cp_expr_sub(cp, &k2, 3); k->i32 = k->u32 && k2.u32; k->id = CTID_INT32;
+	continue;
+      }
+      /* fallthrough */
+    case 3:
+      if (cp_opt(cp, '|')) {
+	cp_expr_sub(cp, &k2, 4); k->u32 = k->u32 | k2.u32; goto arith_result;
+      }
+      /* fallthrough */
+    case 4:
+      if (cp_opt(cp, '^')) {
+	cp_expr_sub(cp, &k2, 5); k->u32 = k->u32 ^ k2.u32; goto arith_result;
+      }
+      /* fallthrough */
+    case 5:
+      if (cp_opt(cp, '&')) {
+	cp_expr_sub(cp, &k2, 6); k->u32 = k->u32 & k2.u32; goto arith_result;
+      }
+      /* fallthrough */
+    case 6:
+      if (cp_opt(cp, CTOK_EQ)) {
+	cp_expr_sub(cp, &k2, 7); k->i32 = k->u32 == k2.u32; k->id = CTID_INT32;
+	continue;
+      } else if (cp_opt(cp, CTOK_NE)) {
+	cp_expr_sub(cp, &k2, 7); k->i32 = k->u32 != k2.u32; k->id = CTID_INT32;
+	continue;
+      }
+      /* fallthrough */
+    case 7:
+      if (cp_opt(cp, '<')) {
+	cp_expr_sub(cp, &k2, 8);
+	if (k->id == CTID_INT32 && k2.id == CTID_INT32)
+	  k->i32 = k->i32 < k2.i32;
+	else
+	  k->i32 = k->u32 < k2.u32;
+	k->id = CTID_INT32;
+	continue;
+      } else if (cp_opt(cp, '>')) {
+	cp_expr_sub(cp, &k2, 8);
+	if (k->id == CTID_INT32 && k2.id == CTID_INT32)
+	  k->i32 = k->i32 > k2.i32;
+	else
+	  k->i32 = k->u32 > k2.u32;
+	k->id = CTID_INT32;
+	continue;
+      } else if (cp_opt(cp, CTOK_LE)) {
+	cp_expr_sub(cp, &k2, 8);
+	if (k->id == CTID_INT32 && k2.id == CTID_INT32)
+	  k->i32 = k->i32 <= k2.i32;
+	else
+	  k->i32 = k->u32 <= k2.u32;
+	k->id = CTID_INT32;
+	continue;
+      } else if (cp_opt(cp, CTOK_GE)) {
+	cp_expr_sub(cp, &k2, 8);
+	if (k->id == CTID_INT32 && k2.id == CTID_INT32)
+	  k->i32 = k->i32 >= k2.i32;
+	else
+	  k->i32 = k->u32 >= k2.u32;
+	k->id = CTID_INT32;
+	continue;
+      }
+      /* fallthrough */
+    case 8:
+      if (cp_opt(cp, CTOK_SHL)) {
+	cp_expr_sub(cp, &k2, 9); k->u32 = k->u32 << k2.u32;
+	continue;
+      } else if (cp_opt(cp, CTOK_SHR)) {
+	cp_expr_sub(cp, &k2, 9);
+	if (k->id == CTID_INT32)
+	  k->i32 = k->i32 >> k2.i32;
+	else
+	  k->u32 = k->u32 >> k2.u32;
+	continue;
+      }
+      /* fallthrough */
+    case 9:
+      if (cp_opt(cp, '+')) {
+	cp_expr_sub(cp, &k2, 10); k->u32 = k->u32 + k2.u32;
+      arith_result:
+	if (k2.id > k->id) k->id = k2.id;  /* Trivial promotion to unsigned. */
+	continue;
+      } else if (cp_opt(cp, '-')) {
+	cp_expr_sub(cp, &k2, 10); k->u32 = k->u32 - k2.u32; goto arith_result;
+      }
+      /* fallthrough */
+    case 10:
+      if (cp_opt(cp, '*')) {
+	cp_expr_unary(cp, &k2); k->u32 = k->u32 * k2.u32; goto arith_result;
+      } else if (cp_opt(cp, '/')) {
+	cp_expr_unary(cp, &k2);
+	if (k2.id > k->id) k->id = k2.id;  /* Trivial promotion to unsigned. */
+	if (k2.u32 == 0 ||
+	    (k->id == CTID_INT32 && k->u32 == 0x80000000u && k2.i32 == -1))
+	  cp_err(cp, LJ_ERR_BADVAL);
+	if (k->id == CTID_INT32)
+	  k->i32 = k->i32 / k2.i32;
+	else
+	  k->u32 = k->u32 / k2.u32;
+	continue;
+      } else if (cp_opt(cp, '%')) {
+	cp_expr_unary(cp, &k2);
+	if (k2.id > k->id) k->id = k2.id;  /* Trivial promotion to unsigned. */
+	if (k2.u32 == 0 ||
+	    (k->id == CTID_INT32 && k->u32 == 0x80000000u && k2.i32 == -1))
+	  cp_err(cp, LJ_ERR_BADVAL);
+	if (k->id == CTID_INT32)
+	  k->i32 = k->i32 % k2.i32;
+	else
+	  k->u32 = k->u32 % k2.u32;
+	continue;
+      }
+    default:
+      return;
+    }
+  }
+}
+
+/* Parse and evaluate unary expression. */
+static void cp_expr_unary(CPState *cp, CPValue *k)
+{
+  if (++cp->depth > CPARSE_MAX_DECLDEPTH) cp_err(cp, LJ_ERR_XLEVELS);
+  cp_expr_prefix(cp, k);
+  cp_expr_postfix(cp, k);
+  cp->depth--;
+}
+
+/* Parse and evaluate sub-expression. */
+static void cp_expr_sub(CPState *cp, CPValue *k, int pri)
+{
+  cp_expr_unary(cp, k);
+  cp_expr_infix(cp, k, pri);
+}
+
+/* Parse constant integer expression. */
+static void cp_expr_kint(CPState *cp, CPValue *k)
+{
+  CType *ct;
+  cp_expr_sub(cp, k, 0);
+  ct = ctype_raw(cp->cts, k->id);
+  if (!ctype_isinteger(ct->info)) cp_err(cp, LJ_ERR_BADVAL);
+}
+
+/* Parse (non-negative) size expression. */
+static CTSize cp_expr_ksize(CPState *cp)
+{
+  CPValue k;
+  cp_expr_kint(cp, &k);
+  if (k.u32 >= 0x80000000u) cp_err(cp, LJ_ERR_FFI_INVSIZE);
+  return k.u32;
+}
+
+/* -- Type declaration stack management ----------------------------------- */
+
+/* Add declaration element behind the insertion position. */
+static CPDeclIdx cp_add(CPDecl *decl, CTInfo info, CTSize size)
+{
+  CPDeclIdx top = decl->top;
+  if (top >= CPARSE_MAX_DECLSTACK) cp_err(decl->cp, LJ_ERR_XLEVELS);
+  decl->stack[top].info = info;
+  decl->stack[top].size = size;
+  decl->stack[top].sib = 0;
+  setgcrefnull(decl->stack[top].name);
+  decl->stack[top].next = decl->stack[decl->pos].next;
+  decl->stack[decl->pos].next = (CTypeID1)top;
+  decl->top = top+1;
+  return top;
+}
+
+/* Push declaration element before the insertion position. */
+static CPDeclIdx cp_push(CPDecl *decl, CTInfo info, CTSize size)
+{
+  return (decl->pos = cp_add(decl, info, size));
+}
+
+/* Push or merge attributes. */
+static void cp_push_attributes(CPDecl *decl)
+{
+  CType *ct = &decl->stack[decl->pos];
+  if (ctype_isfunc(ct->info)) {  /* Ok to modify in-place. */
+#if LJ_TARGET_X86
+    if ((decl->fattr & CTFP_CCONV))
+      ct->info = (ct->info & (CTMASK_NUM|CTF_VARARG|CTMASK_CID)) +
+		 (decl->fattr & ~CTMASK_CID);
+#endif
+  } else {
+    if ((decl->attr & CTFP_ALIGNED) && !(decl->mode & CPARSE_MODE_FIELD))
+      cp_push(decl, CTINFO(CT_ATTRIB, CTATTRIB(CTA_ALIGN)),
+	      ctype_align(decl->attr));
+  }
+}
+
+/* Push unrolled type to declaration stack and merge qualifiers. */
+static void cp_push_type(CPDecl *decl, CTypeID id)
+{
+  CType *ct = ctype_get(decl->cp->cts, id);
+  CTInfo info = ct->info;
+  CTSize size = ct->size;
+  switch (ctype_type(info)) {
+  case CT_STRUCT: case CT_ENUM:
+    cp_push(decl, CTINFO(CT_TYPEDEF, id), 0);  /* Don't copy unique types. */
+    if ((decl->attr & CTF_QUAL)) {  /* Push unmerged qualifiers. */
+      cp_push(decl, CTINFO(CT_ATTRIB, CTATTRIB(CTA_QUAL)),
+	      (decl->attr & CTF_QUAL));
+      decl->attr &= ~CTF_QUAL;
+    }
+    break;
+  case CT_ATTRIB:
+    if (ctype_isxattrib(info, CTA_QUAL))
+      decl->attr &= ~size;  /* Remove redundant qualifiers. */
+    cp_push_type(decl, ctype_cid(info));  /* Unroll. */
+    cp_push(decl, info & ~CTMASK_CID, size);  /* Copy type. */
+    break;
+  case CT_ARRAY:
+    if ((ct->info & (CTF_VECTOR|CTF_COMPLEX))) {
+      info |= (decl->attr & CTF_QUAL);
+      decl->attr &= ~CTF_QUAL;
+    }
+    cp_push_type(decl, ctype_cid(info));  /* Unroll. */
+    cp_push(decl, info & ~CTMASK_CID, size);  /* Copy type. */
+    decl->stack[decl->pos].sib = 1;  /* Mark as already checked and sized. */
+    /* Note: this is not copied to the ct->sib in the C type table. */
+    break;
+  case CT_FUNC:
+    /* Copy type, link parameters (shared). */
+    decl->stack[cp_push(decl, info, size)].sib = ct->sib;
+    break;
+  default:
+    /* Copy type, merge common qualifiers. */
+    cp_push(decl, info|(decl->attr & CTF_QUAL), size);
+    decl->attr &= ~CTF_QUAL;
+    break;
+  }
+}
+
+/* Consume the declaration element chain and intern the C type. */
+static CTypeID cp_decl_intern(CPState *cp, CPDecl *decl)
+{
+  CTypeID id = 0;
+  CPDeclIdx idx = 0;
+  CTSize csize = CTSIZE_INVALID;
+  CTSize cinfo = 0;
+  do {
+    CType *ct = &decl->stack[idx];
+    CTInfo info = ct->info;
+    CTInfo size = ct->size;
+    /* The cid is already part of info for copies of pointers/functions. */
+    idx = ct->next;
+    if (ctype_istypedef(info)) {
+      lj_assertCP(id == 0, "typedef not at toplevel");
+      id = ctype_cid(info);
+      /* Always refetch info/size, since struct/enum may have been completed. */
+      cinfo = ctype_get(cp->cts, id)->info;
+      csize = ctype_get(cp->cts, id)->size;
+      lj_assertCP(ctype_isstruct(cinfo) || ctype_isenum(cinfo),
+		  "typedef of bad type");
+    } else if (ctype_isfunc(info)) {  /* Intern function. */
+      CType *fct;
+      CTypeID fid;
+      CTypeID sib;
+      if (id) {
+	CType *refct = ctype_raw(cp->cts, id);
+	/* Reject function or refarray return types. */
+	if (ctype_isfunc(refct->info) || ctype_isrefarray(refct->info))
+	  cp_err(cp, LJ_ERR_FFI_INVTYPE);
+      }
+      /* No intervening attributes allowed, skip forward. */
+      while (idx) {
+	CType *ctn = &decl->stack[idx];
+	if (!ctype_isattrib(ctn->info)) break;
+	idx = ctn->next;  /* Skip attribute. */
+      }
+      sib = ct->sib;  /* Next line may reallocate the C type table. */
+      fid = lj_ctype_new(cp->cts, &fct);
+      csize = CTSIZE_INVALID;
+      fct->info = cinfo = info + id;
+      fct->size = size;
+      fct->sib = sib;
+      id = fid;
+    } else if (ctype_isattrib(info)) {
+      if (ctype_isxattrib(info, CTA_QUAL))
+	cinfo |= size;
+      else if (ctype_isxattrib(info, CTA_ALIGN))
+	CTF_INSERT(cinfo, ALIGN, size);
+      id = lj_ctype_intern(cp->cts, info+id, size);
+      /* Inherit csize/cinfo from original type. */
+    } else {
+      if (ctype_isnum(info)) {  /* Handle mode/vector-size attributes. */
+	lj_assertCP(id == 0, "number not at toplevel");
+	if (!(info & CTF_BOOL)) {
+	  CTSize msize = ctype_msizeP(decl->attr);
+	  CTSize vsize = ctype_vsizeP(decl->attr);
+	  if (msize && (!(info & CTF_FP) || (msize == 4 || msize == 8))) {
+	    CTSize malign = lj_fls(msize);
+	    if (malign > 4) malign = 4;  /* Limit alignment. */
+	    CTF_INSERT(info, ALIGN, malign);
+	    size = msize;  /* Override size via mode. */
+	  }
+	  if (vsize) {  /* Vector size set? */
+	    CTSize esize = lj_fls(size);
+	    if (vsize >= esize) {
+	      /* Intern the element type first. */
+	      id = lj_ctype_intern(cp->cts, info, size);
+	      /* Then create a vector (array) with vsize alignment. */
+	      size = (1u << vsize);
+	      if (vsize > 4) vsize = 4;  /* Limit alignment. */
+	      if (ctype_align(info) > vsize) vsize = ctype_align(info);
+	      info = CTINFO(CT_ARRAY, (info & CTF_QUAL) + CTF_VECTOR +
+				      CTALIGN(vsize));
+	    }
+	  }
+	}
+      } else if (ctype_isptr(info)) {
+	/* Reject pointer/ref to ref. */
+	if (id && ctype_isref(ctype_raw(cp->cts, id)->info))
+	  cp_err(cp, LJ_ERR_FFI_INVTYPE);
+	if (ctype_isref(info)) {
+	  info &= ~CTF_VOLATILE;  /* Refs are always const, never volatile. */
+	  /* No intervening attributes allowed, skip forward. */
+	  while (idx) {
+	    CType *ctn = &decl->stack[idx];
+	    if (!ctype_isattrib(ctn->info)) break;
+	    idx = ctn->next;  /* Skip attribute. */
+	  }
+	}
+      } else if (ctype_isarray(info)) {  /* Check for valid array size etc. */
+	if (ct->sib == 0) {  /* Only check/size arrays not copied by unroll. */
+	  if (ctype_isref(cinfo))  /* Reject arrays of refs. */
+	    cp_err(cp, LJ_ERR_FFI_INVTYPE);
+	  /* Reject VLS or unknown-sized types. */
+	  if (ctype_isvltype(cinfo) || csize == CTSIZE_INVALID)
+	    cp_err(cp, LJ_ERR_FFI_INVSIZE);
+	  /* a[] and a[?] keep their invalid size. */
+	  if (size != CTSIZE_INVALID) {
+	    uint64_t xsz = (uint64_t)size * csize;
+	    if (xsz >= 0x80000000u) cp_err(cp, LJ_ERR_FFI_INVSIZE);
+	    size = (CTSize)xsz;
+	  }
+	}
+	if ((cinfo & CTF_ALIGN) > (info & CTF_ALIGN))  /* Find max. align. */
+	  info = (info & ~CTF_ALIGN) | (cinfo & CTF_ALIGN);
+	info |= (cinfo & CTF_QUAL);  /* Inherit qual. */
+      } else {
+	lj_assertCP(ctype_isvoid(info), "bad ctype %08x", info);
+      }
+      csize = size;
+      cinfo = info+id;
+      id = lj_ctype_intern(cp->cts, info+id, size);
+    }
+  } while (idx);
+  return id;
+}
+
+/* -- C declaration parser ------------------------------------------------ */
+
+/* Reset declaration state to declaration specifier. */
+static void cp_decl_reset(CPDecl *decl)
+{
+  decl->pos = decl->specpos;
+  decl->top = decl->specpos+1;
+  decl->stack[decl->specpos].next = 0;
+  decl->attr = decl->specattr;
+  decl->fattr = decl->specfattr;
+  decl->name = NULL;
+  decl->redir = NULL;
+}
+
+/* Parse constant initializer. */
+/* NYI: FP constants and strings as initializers. */
+static CTypeID cp_decl_constinit(CPState *cp, CType **ctp, CTypeID ctypeid)
+{
+  CType *ctt = ctype_get(cp->cts, ctypeid);
+  CTInfo info;
+  CTSize size;
+  CPValue k;
+  CTypeID constid;
+  while (ctype_isattrib(ctt->info)) {  /* Skip attributes. */
+    ctypeid = ctype_cid(ctt->info);  /* Update ID, too. */
+    ctt = ctype_get(cp->cts, ctypeid);
+  }
+  info = ctt->info;
+  size = ctt->size;
+  if (!ctype_isinteger(info) || !(info & CTF_CONST) || size > 4)
+    cp_err(cp, LJ_ERR_FFI_INVTYPE);
+  cp_check(cp, '=');
+  cp_expr_sub(cp, &k, 0);
+  constid = lj_ctype_new(cp->cts, ctp);
+  (*ctp)->info = CTINFO(CT_CONSTVAL, CTF_CONST|ctypeid);
+  k.u32 <<= 8*(4-size);
+  if ((info & CTF_UNSIGNED))
+    k.u32 >>= 8*(4-size);
+  else
+    k.u32 = (uint32_t)((int32_t)k.u32 >> 8*(4-size));
+  (*ctp)->size = k.u32;
+  return constid;
+}
+
+/* Parse size in parentheses as part of attribute. */
+static CTSize cp_decl_sizeattr(CPState *cp)
+{
+  CTSize sz;
+  uint32_t oldtmask = cp->tmask;
+  cp->tmask = CPNS_DEFAULT;  /* Required for expression evaluator. */
+  cp_check(cp, '(');
+  sz = cp_expr_ksize(cp);
+  cp->tmask = oldtmask;
+  cp_check(cp, ')');
+  return sz;
+}
+
+/* Parse alignment attribute. */
+static void cp_decl_align(CPState *cp, CPDecl *decl)
+{
+  CTSize al = 4;  /* Unspecified alignment is 16 bytes. */
+  if (cp->tok == '(') {
+    al = cp_decl_sizeattr(cp);
+    al = al ? lj_fls(al) : 0;
+  }
+  CTF_INSERT(decl->attr, ALIGN, al);
+  decl->attr |= CTFP_ALIGNED;
+}
+
+/* Parse GCC asm("name") redirect. */
+static void cp_decl_asm(CPState *cp, CPDecl *decl)
+{
+  UNUSED(decl);
+  cp_next(cp);
+  cp_check(cp, '(');
+  if (cp->tok == CTOK_STRING) {
+    GCstr *str = cp->str;
+    while (cp_next(cp) == CTOK_STRING) {
+      lj_strfmt_pushf(cp->L, "%s%s", strdata(str), strdata(cp->str));
+      cp->L->top--;
+      str = strV(cp->L->top);
+    }
+    decl->redir = str;
+  }
+  cp_check(cp, ')');
+}
+
+/* Parse GCC __attribute__((mode(...))). */
+static void cp_decl_mode(CPState *cp, CPDecl *decl)
+{
+  cp_check(cp, '(');
+  if (cp->tok == CTOK_IDENT) {
+    const char *s = strdata(cp->str);
+    CTSize sz = 0, vlen = 0;
+    if (s[0] == '_' && s[1] == '_') s += 2;
+    if (*s == 'V') {
+      s++;
+      vlen = *s++ - '0';
+      if (*s >= '0' && *s <= '9')
+	vlen = vlen*10 + (*s++ - '0');
+    }
+    switch (*s++) {
+    case 'Q': sz = 1; break;
+    case 'H': sz = 2; break;
+    case 'S': sz = 4; break;
+    case 'D': sz = 8; break;
+    case 'T': sz = 16; break;
+    case 'O': sz = 32; break;
+    default: goto bad_size;
+    }
+    if (*s == 'I' || *s == 'F') {
+      CTF_INSERT(decl->attr, MSIZEP, sz);
+      if (vlen) CTF_INSERT(decl->attr, VSIZEP, lj_fls(vlen*sz));
+    }
+  bad_size:
+    cp_next(cp);
+  }
+  cp_check(cp, ')');
+}
+
+/* Parse GCC __attribute__((...)). */
+static void cp_decl_gccattribute(CPState *cp, CPDecl *decl)
+{
+  cp_next(cp);
+  cp_check(cp, '(');
+  cp_check(cp, '(');
+  while (cp->tok != ')') {
+    if (cp->tok == CTOK_IDENT) {
+      GCstr *attrstr = cp->str;
+      cp_next(cp);
+      switch (lj_cparse_case(attrstr,
+		"\007aligned" "\013__aligned__"
+		"\006packed" "\012__packed__"
+		"\004mode" "\010__mode__"
+		"\013vector_size" "\017__vector_size__"
+#if LJ_TARGET_X86
+		"\007regparm" "\013__regparm__"
+		"\005cdecl"  "\011__cdecl__"
+		"\010thiscall" "\014__thiscall__"
+		"\010fastcall" "\014__fastcall__"
+		"\007stdcall" "\013__stdcall__"
+		"\012sseregparm" "\016__sseregparm__"
+#endif
+	      )) {
+      case 0: case 1: /* aligned */
+	cp_decl_align(cp, decl);
+	break;
+      case 2: case 3: /* packed */
+	decl->attr |= CTFP_PACKED;
+	break;
+      case 4: case 5: /* mode */
+	cp_decl_mode(cp, decl);
+	break;
+      case 6: case 7: /* vector_size */
+	{
+	  CTSize vsize = cp_decl_sizeattr(cp);
+	  if (vsize) CTF_INSERT(decl->attr, VSIZEP, lj_fls(vsize));
+	}
+	break;
+#if LJ_TARGET_X86
+      case 8: case 9: /* regparm */
+	CTF_INSERT(decl->fattr, REGPARM, cp_decl_sizeattr(cp));
+	decl->fattr |= CTFP_CCONV;
+	break;
+      case 10: case 11: /* cdecl */
+	CTF_INSERT(decl->fattr, CCONV, CTCC_CDECL);
+	decl->fattr |= CTFP_CCONV;
+	break;
+      case 12: case 13: /* thiscall */
+	CTF_INSERT(decl->fattr, CCONV, CTCC_THISCALL);
+	decl->fattr |= CTFP_CCONV;
+	break;
+      case 14: case 15: /* fastcall */
+	CTF_INSERT(decl->fattr, CCONV, CTCC_FASTCALL);
+	decl->fattr |= CTFP_CCONV;
+	break;
+      case 16: case 17: /* stdcall */
+	CTF_INSERT(decl->fattr, CCONV, CTCC_STDCALL);
+	decl->fattr |= CTFP_CCONV;
+	break;
+      case 18: case 19: /* sseregparm */
+	decl->fattr |= CTF_SSEREGPARM;
+	decl->fattr |= CTFP_CCONV;
+	break;
+#endif
+      default:  /* Skip all other attributes. */
+	goto skip_attr;
+      }
+    } else if (cp->tok >= CTOK_FIRSTDECL) {  /* For __attribute((const)) etc. */
+      cp_next(cp);
+    skip_attr:
+      if (cp_opt(cp, '(')) {
+	while (cp->tok != ')' && cp->tok != CTOK_EOF) cp_next(cp);
+	cp_check(cp, ')');
+      }
+    } else {
+      break;
+    }
+    if (!cp_opt(cp, ',')) break;
+  }
+  cp_check(cp, ')');
+  cp_check(cp, ')');
+}
+
+/* Parse MSVC __declspec(...). */
+static void cp_decl_msvcattribute(CPState *cp, CPDecl *decl)
+{
+  cp_next(cp);
+  cp_check(cp, '(');
+  while (cp->tok == CTOK_IDENT) {
+    GCstr *attrstr = cp->str;
+    cp_next(cp);
+    if (cp_str_is(attrstr, "align")) {
+      cp_decl_align(cp, decl);
+    } else {  /* Ignore all other attributes. */
+      if (cp_opt(cp, '(')) {
+	while (cp->tok != ')' && cp->tok != CTOK_EOF) cp_next(cp);
+	cp_check(cp, ')');
+      }
+    }
+  }
+  cp_check(cp, ')');
+}
+
+/* Parse declaration attributes (and common qualifiers). */
+static void cp_decl_attributes(CPState *cp, CPDecl *decl)
+{
+  for (;;) {
+    switch (cp->tok) {
+    case CTOK_CONST: decl->attr |= CTF_CONST; break;
+    case CTOK_VOLATILE: decl->attr |= CTF_VOLATILE; break;
+    case CTOK_RESTRICT: break;  /* Ignore. */
+    case CTOK_EXTENSION: break;  /* Ignore. */
+    case CTOK_ATTRIBUTE: cp_decl_gccattribute(cp, decl); continue;
+    case CTOK_ASM: cp_decl_asm(cp, decl); continue;
+    case CTOK_DECLSPEC: cp_decl_msvcattribute(cp, decl); continue;
+    case CTOK_CCDECL:
+#if LJ_TARGET_X86
+      CTF_INSERT(decl->fattr, CCONV, cp->ct->size);
+      decl->fattr |= CTFP_CCONV;
+#endif
+      break;
+    case CTOK_PTRSZ:
+#if LJ_64
+      CTF_INSERT(decl->attr, MSIZEP, cp->ct->size);
+#endif
+      break;
+    default: return;
+    }
+    cp_next(cp);
+  }
+}
+
+/* Parse struct/union/enum name. */
+static CTypeID cp_struct_name(CPState *cp, CPDecl *sdecl, CTInfo info)
+{
+  CTypeID sid;
+  CType *ct;
+  cp->tmask = CPNS_STRUCT;
+  cp_next(cp);
+  cp_decl_attributes(cp, sdecl);
+  cp->tmask = CPNS_DEFAULT;
+  if (cp->tok != '{') {
+    if (cp->tok != CTOK_IDENT) cp_err_token(cp, CTOK_IDENT);
+    if (cp->val.id) {  /* Name of existing struct/union/enum. */
+      sid = cp->val.id;
+      ct = cp->ct;
+      if ((ct->info ^ info) & (CTMASK_NUM|CTF_UNION))  /* Wrong type. */
+	cp_errmsg(cp, 0, LJ_ERR_FFI_REDEF, strdata(gco2str(gcref(ct->name))));
+    } else {  /* Create named, incomplete struct/union/enum. */
+      if ((cp->mode & CPARSE_MODE_NOIMPLICIT))
+	cp_errmsg(cp, 0, LJ_ERR_FFI_BADTAG, strdata(cp->str));
+      sid = lj_ctype_new(cp->cts, &ct);
+      ct->info = info;
+      ct->size = CTSIZE_INVALID;
+      ctype_setname(ct, cp->str);
+      lj_ctype_addname(cp->cts, ct, sid);
+    }
+    cp_next(cp);
+  } else {  /* Create anonymous, incomplete struct/union/enum. */
+    sid = lj_ctype_new(cp->cts, &ct);
+    ct->info = info;
+    ct->size = CTSIZE_INVALID;
+  }
+  if (cp->tok == '{') {
+    if (ct->size != CTSIZE_INVALID || ct->sib)
+      cp_errmsg(cp, 0, LJ_ERR_FFI_REDEF, strdata(gco2str(gcref(ct->name))));
+    ct->sib = 1;  /* Indicate the type is currently being defined. */
+  }
+  return sid;
+}
+
+/* Determine field alignment. */
+static CTSize cp_field_align(CPState *cp, CType *ct, CTInfo info)
+{
+  CTSize align = ctype_align(info);
+  UNUSED(cp); UNUSED(ct);
+#if (LJ_TARGET_X86 && !LJ_ABI_WIN) || (LJ_TARGET_ARM && __APPLE__)
+  /* The SYSV i386 and iOS ABIs limit alignment of non-vector fields to 2^2. */
+  if (align > 2 && !(info & CTFP_ALIGNED)) {
+    if (ctype_isarray(info) && !(info & CTF_VECTOR)) {
+      do {
+	ct = ctype_rawchild(cp->cts, ct);
+	info = ct->info;
+      } while (ctype_isarray(info) && !(info & CTF_VECTOR));
+    }
+    if (ctype_isnum(info) || ctype_isenum(info))
+      align = 2;
+  }
+#endif
+  return align;
+}
+
+/* Layout struct/union fields. */
+static void cp_struct_layout(CPState *cp, CTypeID sid, CTInfo sattr)
+{
+  CTSize bofs = 0, bmaxofs = 0;  /* Bit offset and max. bit offset. */
+  CTSize maxalign = ctype_align(sattr);
+  CType *sct = ctype_get(cp->cts, sid);
+  CTInfo sinfo = sct->info;
+  CTypeID fieldid = sct->sib;
+  while (fieldid) {
+    CType *ct = ctype_get(cp->cts, fieldid);
+    CTInfo attr = ct->size;  /* Field declaration attributes (temp.). */
+
+    if (ctype_isfield(ct->info) ||
+	(ctype_isxattrib(ct->info, CTA_SUBTYPE) && attr)) {
+      CTSize align, amask;  /* Alignment (pow2) and alignment mask (bits). */
+      CTSize sz;
+      CTInfo info = lj_ctype_info(cp->cts, ctype_cid(ct->info), &sz);
+      CTSize bsz, csz = 8*sz;  /* Field size and container size (in bits). */
+      sinfo |= (info & (CTF_QUAL|CTF_VLA));  /* Merge pseudo-qualifiers. */
+
+      /* Check for size overflow and determine alignment. */
+      if (sz >= 0x20000000u || bofs + csz < bofs || (info & CTF_VLA)) {
+	if (!(sz == CTSIZE_INVALID && ctype_isarray(info) &&
+	      !(sinfo & CTF_UNION)))
+	  cp_err(cp, LJ_ERR_FFI_INVSIZE);
+	csz = sz = 0;  /* Treat a[] and a[?] as zero-sized. */
+      }
+      align = cp_field_align(cp, ct, info);
+      if (((attr|sattr) & CTFP_PACKED) ||
+	  ((attr & CTFP_ALIGNED) && ctype_align(attr) > align))
+	align = ctype_align(attr);
+      if (cp->packstack[cp->curpack] < align)
+	align = cp->packstack[cp->curpack];
+      if (align > maxalign) maxalign = align;
+      amask = (8u << align) - 1;
+
+      bsz = ctype_bitcsz(ct->info);  /* Bitfield size (temp.). */
+      if (bsz == CTBSZ_FIELD || !ctype_isfield(ct->info)) {
+	bsz = csz;  /* Regular fields or subtypes always fill the container. */
+	bofs = (bofs + amask) & ~amask;  /* Start new aligned field. */
+	ct->size = (bofs >> 3);  /* Store field offset. */
+      } else {  /* Bitfield. */
+	if (bsz == 0 || (attr & CTFP_ALIGNED) ||
+	    (!((attr|sattr) & CTFP_PACKED) && (bofs & amask) + bsz > csz))
+	  bofs = (bofs + amask) & ~amask;  /* Start new aligned field. */
+
+	/* Prefer regular field over bitfield. */
+	if (bsz == csz && (bofs & amask) == 0) {
+	  ct->info = CTINFO(CT_FIELD, ctype_cid(ct->info));
+	  ct->size = (bofs >> 3);  /* Store field offset. */
+	} else {
+	  ct->info = CTINFO(CT_BITFIELD,
+	    (info & (CTF_QUAL|CTF_UNSIGNED|CTF_BOOL)) +
+	    (csz << (CTSHIFT_BITCSZ-3)) + (bsz << CTSHIFT_BITBSZ));
+#if LJ_BE
+	  ct->info += ((csz - (bofs & (csz-1)) - bsz) << CTSHIFT_BITPOS);
+#else
+	  ct->info += ((bofs & (csz-1)) << CTSHIFT_BITPOS);
+#endif
+	  ct->size = ((bofs & ~(csz-1)) >> 3);  /* Store container offset. */
+	}
+      }
+
+      /* Determine next offset or max. offset. */
+      if ((sinfo & CTF_UNION)) {
+	if (bsz > bmaxofs) bmaxofs = bsz;
+      } else {
+	bofs += bsz;
+      }
+    }  /* All other fields in the chain are already set up. */
+
+    fieldid = ct->sib;
+  }
+
+  /* Complete struct/union. */
+  sct->info = sinfo + CTALIGN(maxalign);
+  bofs = (sinfo & CTF_UNION) ? bmaxofs : bofs;
+  maxalign = (8u << maxalign) - 1;
+  sct->size = (((bofs + maxalign) & ~maxalign) >> 3);
+}
+
+/* Parse struct/union declaration. */
+static CTypeID cp_decl_struct(CPState *cp, CPDecl *sdecl, CTInfo sinfo)
+{
+  CTypeID sid = cp_struct_name(cp, sdecl, sinfo);
+  if (cp_opt(cp, '{')) {  /* Struct/union definition. */
+    CTypeID lastid = sid;
+    int lastdecl = 0;
+    while (cp->tok != '}') {
+      CPDecl decl;
+      CPscl scl = cp_decl_spec(cp, &decl, CDF_STATIC);
+      decl.mode = scl ? CPARSE_MODE_DIRECT :
+	CPARSE_MODE_DIRECT|CPARSE_MODE_ABSTRACT|CPARSE_MODE_FIELD;
+
+      for (;;) {
+	CTypeID ctypeid;
+
+	if (lastdecl) cp_err_token(cp, '}');
+
+	/* Parse field declarator. */
+	decl.bits = CTSIZE_INVALID;
+	cp_declarator(cp, &decl);
+	ctypeid = cp_decl_intern(cp, &decl);
+
+	if ((scl & CDF_STATIC)) {  /* Static constant in struct namespace. */
+	  CType *ct;
+	  CTypeID fieldid = cp_decl_constinit(cp, &ct, ctypeid);
+	  ctype_get(cp->cts, lastid)->sib = fieldid;
+	  lastid = fieldid;
+	  ctype_setname(ct, decl.name);
+	} else {
+	  CTSize bsz = CTBSZ_FIELD;  /* Temp. for layout phase. */
+	  CType *ct;
+	  CTypeID fieldid = lj_ctype_new(cp->cts, &ct);  /* Do this first. */
+	  CType *tct = ctype_raw(cp->cts, ctypeid);
+
+	  if (decl.bits == CTSIZE_INVALID) {  /* Regular field. */
+	    if (ctype_isarray(tct->info) && tct->size == CTSIZE_INVALID)
+	      lastdecl = 1;  /* a[] or a[?] must be the last declared field. */
+
+	    /* Accept transparent struct/union/enum. */
+	    if (!decl.name) {
+	      if (!((ctype_isstruct(tct->info) && !(tct->info & CTF_VLA)) ||
+		    ctype_isenum(tct->info)))
+		cp_err_token(cp, CTOK_IDENT);
+	      ct->info = CTINFO(CT_ATTRIB, CTATTRIB(CTA_SUBTYPE) + ctypeid);
+	      ct->size = ctype_isstruct(tct->info) ?
+			 (decl.attr|0x80000000u) : 0;  /* For layout phase. */
+	      goto add_field;
+	    }
+	  } else {  /* Bitfield. */
+	    bsz = decl.bits;
+	    if (!ctype_isinteger_or_bool(tct->info) ||
+		(bsz == 0 && decl.name) || 8*tct->size > CTBSZ_MAX ||
+		bsz > ((tct->info & CTF_BOOL) ? 1 : 8*tct->size))
+	      cp_errmsg(cp, ':', LJ_ERR_BADVAL);
+	  }
+
+	  /* Create temporary field for layout phase. */
+	  ct->info = CTINFO(CT_FIELD, ctypeid + (bsz << CTSHIFT_BITCSZ));
+	  ct->size = decl.attr;
+	  if (decl.name) ctype_setname(ct, decl.name);
+
+	add_field:
+	  ctype_get(cp->cts, lastid)->sib = fieldid;
+	  lastid = fieldid;
+	}
+	if (!cp_opt(cp, ',')) break;
+	cp_decl_reset(&decl);
+      }
+      cp_check(cp, ';');
+    }
+    cp_check(cp, '}');
+    ctype_get(cp->cts, lastid)->sib = 0;  /* Drop sib = 1 for empty structs. */
+    cp_decl_attributes(cp, sdecl);  /* Layout phase needs postfix attributes. */
+    cp_struct_layout(cp, sid, sdecl->attr);
+  }
+  return sid;
+}
+
+/* Parse enum declaration. */
+static CTypeID cp_decl_enum(CPState *cp, CPDecl *sdecl)
+{
+  CTypeID eid = cp_struct_name(cp, sdecl, CTINFO(CT_ENUM, CTID_VOID));
+  CTInfo einfo = CTINFO(CT_ENUM, CTALIGN(2) + CTID_UINT32);
+  CTSize esize = 4;  /* Only 32 bit enums are supported. */
+  if (cp_opt(cp, '{')) {  /* Enum definition. */
+    CPValue k;
+    CTypeID lastid = eid;
+    k.u32 = 0;
+    k.id = CTID_INT32;
+    do {
+      GCstr *name = cp->str;
+      if (cp->tok != CTOK_IDENT) cp_err_token(cp, CTOK_IDENT);
+      if (cp->val.id) cp_errmsg(cp, 0, LJ_ERR_FFI_REDEF, strdata(name));
+      cp_next(cp);
+      if (cp_opt(cp, '=')) {
+	cp_expr_kint(cp, &k);
+	if (k.id == CTID_UINT32) {
+	  /* C99 says that enum constants are always (signed) integers.
+	  ** But since unsigned constants like 0x80000000 are quite common,
+	  ** those are left as uint32_t.
+	  */
+	  if (k.i32 >= 0) k.id = CTID_INT32;
+	} else {
+	  /* OTOH it's common practice and even mandated by some ABIs
+	  ** that the enum type itself is unsigned, unless there are any
+	  ** negative constants.
+	  */
+	  k.id = CTID_INT32;
+	  if (k.i32 < 0) einfo = CTINFO(CT_ENUM, CTALIGN(2) + CTID_INT32);
+	}
+      }
+      /* Add named enum constant. */
+      {
+	CType *ct;
+	CTypeID constid = lj_ctype_new(cp->cts, &ct);
+	ctype_get(cp->cts, lastid)->sib = constid;
+	lastid = constid;
+	ctype_setname(ct, name);
+	ct->info = CTINFO(CT_CONSTVAL, CTF_CONST|k.id);
+	ct->size = k.u32++;
+	if (k.u32 == 0x80000000u) k.id = CTID_UINT32;
+	lj_ctype_addname(cp->cts, ct, constid);
+      }
+      if (!cp_opt(cp, ',')) break;
+    } while (cp->tok != '}');  /* Trailing ',' is ok. */
+    cp_check(cp, '}');
+    /* Complete enum. */
+    ctype_get(cp->cts, eid)->info = einfo;
+    ctype_get(cp->cts, eid)->size = esize;
+  }
+  return eid;
+}
+
+/* Parse declaration specifiers. */
+static CPscl cp_decl_spec(CPState *cp, CPDecl *decl, CPscl scl)
+{
+  uint32_t cds = 0, sz = 0;
+  CTypeID tdef = 0;
+
+  decl->cp = cp;
+  decl->mode = cp->mode;
+  decl->name = NULL;
+  decl->redir = NULL;
+  decl->attr = 0;
+  decl->fattr = 0;
+  decl->pos = decl->top = 0;
+  decl->stack[0].next = 0;
+
+  for (;;) {  /* Parse basic types. */
+    cp_decl_attributes(cp, decl);
+    if (cp->tok >= CTOK_FIRSTDECL && cp->tok <= CTOK_LASTDECLFLAG) {
+      uint32_t cbit;
+      if (cp->ct->size) {
+	if (sz) goto end_decl;
+	sz = cp->ct->size;
+      }
+      cbit = (1u << (cp->tok - CTOK_FIRSTDECL));
+      cds = cds | cbit | ((cbit & cds & CDF_LONG) << 1);
+      if (cp->tok >= CTOK_FIRSTSCL) {
+	if (!(scl & cbit)) cp_errmsg(cp, cp->tok, LJ_ERR_FFI_BADSCL);
+      } else if (tdef) {
+	goto end_decl;
+      }
+      cp_next(cp);
+      continue;
+    }
+    if (sz || tdef ||
+	(cds & (CDF_SHORT|CDF_LONG|CDF_SIGNED|CDF_UNSIGNED|CDF_COMPLEX)))
+      break;
+    switch (cp->tok) {
+    case CTOK_STRUCT:
+      tdef = cp_decl_struct(cp, decl, CTINFO(CT_STRUCT, 0));
+      continue;
+    case CTOK_UNION:
+      tdef = cp_decl_struct(cp, decl, CTINFO(CT_STRUCT, CTF_UNION));
+      continue;
+    case CTOK_ENUM:
+      tdef = cp_decl_enum(cp, decl);
+      continue;
+    case CTOK_IDENT:
+      if (ctype_istypedef(cp->ct->info)) {
+	tdef = ctype_cid(cp->ct->info);  /* Get typedef. */
+	cp_next(cp);
+	continue;
+      }
+      break;
+    case '$':
+      tdef = cp->val.id;
+      cp_next(cp);
+      continue;
+    default:
+      break;
+    }
+    break;
+  }
+end_decl:
+
+  if ((cds & CDF_COMPLEX))  /* Use predefined complex types. */
+    tdef = sz == 4 ? CTID_COMPLEX_FLOAT : CTID_COMPLEX_DOUBLE;
+
+  if (tdef) {
+    cp_push_type(decl, tdef);
+  } else if ((cds & CDF_VOID)) {
+    cp_push(decl, CTINFO(CT_VOID, (decl->attr & CTF_QUAL)), CTSIZE_INVALID);
+    decl->attr &= ~CTF_QUAL;
+  } else {
+    /* Determine type info and size. */
+    CTInfo info = CTINFO(CT_NUM, (cds & CDF_UNSIGNED) ? CTF_UNSIGNED : 0);
+    if ((cds & CDF_BOOL)) {
+      if ((cds & ~(CDF_SCL|CDF_BOOL|CDF_INT|CDF_SIGNED|CDF_UNSIGNED)))
+	cp_errmsg(cp, 0, LJ_ERR_FFI_INVTYPE);
+      info |= CTF_BOOL;
+      if (!(cds & CDF_SIGNED)) info |= CTF_UNSIGNED;
+      if (!sz) {
+	sz = 1;
+      }
+    } else if ((cds & CDF_FP)) {
+      info = CTINFO(CT_NUM, CTF_FP);
+      if ((cds & CDF_LONG)) sz = sizeof(long double);
+    } else if ((cds & CDF_CHAR)) {
+      if ((cds & (CDF_CHAR|CDF_SIGNED|CDF_UNSIGNED)) == CDF_CHAR)
+	info |= CTF_UCHAR;  /* Handle platforms where char is unsigned. */
+    } else if ((cds & CDF_SHORT)) {
+      sz = sizeof(short);
+    } else if ((cds & CDF_LONGLONG)) {
+      sz = 8;
+    } else if ((cds & CDF_LONG)) {
+      info |= CTF_LONG;
+      sz = sizeof(long);
+    } else if (!sz) {
+      if (!(cds & (CDF_SIGNED|CDF_UNSIGNED)))
+	cp_errmsg(cp, cp->tok, LJ_ERR_FFI_DECLSPEC);
+      sz = sizeof(int);
+    }
+    lj_assertCP(sz != 0, "basic ctype with zero size");
+    info += CTALIGN(lj_fls(sz));  /* Use natural alignment. */
+    info += (decl->attr & CTF_QUAL);  /* Merge qualifiers. */
+    cp_push(decl, info, sz);
+    decl->attr &= ~CTF_QUAL;
+  }
+  decl->specpos = decl->pos;
+  decl->specattr = decl->attr;
+  decl->specfattr = decl->fattr;
+  return (cds & CDF_SCL);  /* Return storage class. */
+}
+
+/* Parse array declaration. */
+static void cp_decl_array(CPState *cp, CPDecl *decl)
+{
+  CTInfo info = CTINFO(CT_ARRAY, 0);
+  CTSize nelem = CTSIZE_INVALID;  /* Default size for a[] or a[?]. */
+  cp_decl_attributes(cp, decl);
+  if (cp_opt(cp, '?'))
+    info |= CTF_VLA;  /* Create variable-length array a[?]. */
+  else if (cp->tok != ']')
+    nelem = cp_expr_ksize(cp);
+  cp_check(cp, ']');
+  cp_add(decl, info, nelem);
+}
+
+/* Parse function declaration. */
+static void cp_decl_func(CPState *cp, CPDecl *fdecl)
+{
+  CTSize nargs = 0;
+  CTInfo info = CTINFO(CT_FUNC, 0);
+  CTypeID lastid = 0, anchor = 0;
+  if (cp->tok != ')') {
+    do {
+      CPDecl decl;
+      CTypeID ctypeid, fieldid;
+      CType *ct;
+      if (cp_opt(cp, '.')) {  /* Vararg function. */
+	cp_check(cp, '.');  /* Workaround for the minimalistic lexer. */
+	cp_check(cp, '.');
+	info |= CTF_VARARG;
+	break;
+      }
+      cp_decl_spec(cp, &decl, CDF_REGISTER);
+      decl.mode = CPARSE_MODE_DIRECT|CPARSE_MODE_ABSTRACT;
+      cp_declarator(cp, &decl);
+      ctypeid = cp_decl_intern(cp, &decl);
+      ct = ctype_raw(cp->cts, ctypeid);
+      if (ctype_isvoid(ct->info))
+	break;
+      else if (ctype_isrefarray(ct->info))
+	ctypeid = lj_ctype_intern(cp->cts,
+	  CTINFO(CT_PTR, CTALIGN_PTR|ctype_cid(ct->info)), CTSIZE_PTR);
+      else if (ctype_isfunc(ct->info))
+	ctypeid = lj_ctype_intern(cp->cts,
+	  CTINFO(CT_PTR, CTALIGN_PTR|ctypeid), CTSIZE_PTR);
+      /* Add new parameter. */
+      fieldid = lj_ctype_new(cp->cts, &ct);
+      if (anchor)
+	ctype_get(cp->cts, lastid)->sib = fieldid;
+      else
+	anchor = fieldid;
+      lastid = fieldid;
+      if (decl.name) ctype_setname(ct, decl.name);
+      ct->info = CTINFO(CT_FIELD, ctypeid);
+      ct->size = nargs++;
+    } while (cp_opt(cp, ','));
+  }
+  cp_check(cp, ')');
+  if (cp_opt(cp, '{')) {  /* Skip function definition. */
+    int level = 1;
+    cp->mode |= CPARSE_MODE_SKIP;
+    for (;;) {
+      if (cp->tok == '{') level++;
+      else if (cp->tok == '}' && --level == 0) break;
+      else if (cp->tok == CTOK_EOF) cp_err_token(cp, '}');
+      cp_next(cp);
+    }
+    cp->mode &= ~CPARSE_MODE_SKIP;
+    cp->tok = ';';  /* Ok for cp_decl_multi(), error in cp_decl_single(). */
+  }
+  info |= (fdecl->fattr & ~CTMASK_CID);
+  fdecl->fattr = 0;
+  fdecl->stack[cp_add(fdecl, info, nargs)].sib = anchor;
+}
+
+/* Parse declarator. */
+static void cp_declarator(CPState *cp, CPDecl *decl)
+{
+  if (++cp->depth > CPARSE_MAX_DECLDEPTH) cp_err(cp, LJ_ERR_XLEVELS);
+
+  for (;;) {  /* Head of declarator. */
+    if (cp_opt(cp, '*')) {  /* Pointer. */
+      CTSize sz;
+      CTInfo info;
+      cp_decl_attributes(cp, decl);
+      sz = CTSIZE_PTR;
+      info = CTINFO(CT_PTR, CTALIGN_PTR);
+#if LJ_64
+      if (ctype_msizeP(decl->attr) == 4) {
+	sz = 4;
+	info = CTINFO(CT_PTR, CTALIGN(2));
+      }
+#endif
+      info += (decl->attr & (CTF_QUAL|CTF_REF));
+      decl->attr &= ~(CTF_QUAL|(CTMASK_MSIZEP<<CTSHIFT_MSIZEP));
+      cp_push(decl, info, sz);
+    } else if (cp_opt(cp, '&') || cp_opt(cp, CTOK_ANDAND)) {  /* Reference. */
+      decl->attr &= ~(CTF_QUAL|(CTMASK_MSIZEP<<CTSHIFT_MSIZEP));
+      cp_push(decl, CTINFO_REF(0), CTSIZE_PTR);
+    } else {
+      break;
+    }
+  }
+
+  if (cp_opt(cp, '(')) {  /* Inner declarator. */
+    CPDeclIdx pos;
+    cp_decl_attributes(cp, decl);
+    /* Resolve ambiguity between inner declarator and 1st function parameter. */
+    if ((decl->mode & CPARSE_MODE_ABSTRACT) &&
+	(cp->tok == ')' || cp_istypedecl(cp))) goto func_decl;
+    pos = decl->pos;
+    cp_declarator(cp, decl);
+    cp_check(cp, ')');
+    decl->pos = pos;
+  } else if (cp->tok == CTOK_IDENT) {  /* Direct declarator. */
+    if (!(decl->mode & CPARSE_MODE_DIRECT)) cp_err_token(cp, CTOK_EOF);
+    decl->name = cp->str;
+    decl->nameid = cp->val.id;
+    cp_next(cp);
+  } else {  /* Abstract declarator. */
+    if (!(decl->mode & CPARSE_MODE_ABSTRACT)) cp_err_token(cp, CTOK_IDENT);
+  }
+
+  for (;;) {  /* Tail of declarator. */
+    if (cp_opt(cp, '[')) {  /* Array. */
+      cp_decl_array(cp, decl);
+    } else if (cp_opt(cp, '(')) {  /* Function. */
+    func_decl:
+      cp_decl_func(cp, decl);
+    } else {
+      break;
+    }
+  }
+
+  if ((decl->mode & CPARSE_MODE_FIELD) && cp_opt(cp, ':'))  /* Field width. */
+    decl->bits = cp_expr_ksize(cp);
+
+  /* Process postfix attributes. */
+  cp_decl_attributes(cp, decl);
+  cp_push_attributes(decl);
+
+  cp->depth--;
+}
+
+/* Parse an abstract type declaration and return it's C type ID. */
+static CTypeID cp_decl_abstract(CPState *cp)
+{
+  CPDecl decl;
+  cp_decl_spec(cp, &decl, 0);
+  decl.mode = CPARSE_MODE_ABSTRACT;
+  cp_declarator(cp, &decl);
+  return cp_decl_intern(cp, &decl);
+}
+
+/* Handle pragmas. */
+static void cp_pragma(CPState *cp, BCLine pragmaline)
+{
+  cp_next(cp);
+  if (cp->tok == CTOK_IDENT && cp_str_is(cp->str, "pack"))  {
+    cp_next(cp);
+    cp_check(cp, '(');
+    if (cp->tok == CTOK_IDENT) {
+      if (cp_str_is(cp->str, "push")) {
+	if (cp->curpack < CPARSE_MAX_PACKSTACK) {
+	  cp->packstack[cp->curpack+1] = cp->packstack[cp->curpack];
+	  cp->curpack++;
+	}
+      } else if (cp_str_is(cp->str, "pop")) {
+	if (cp->curpack > 0) cp->curpack--;
+      } else {
+	cp_errmsg(cp, cp->tok, LJ_ERR_XSYMBOL);
+      }
+      cp_next(cp);
+      if (!cp_opt(cp, ',')) goto end_pack;
+    }
+    if (cp->tok == CTOK_INTEGER) {
+      cp->packstack[cp->curpack] = cp->val.u32 ? lj_fls(cp->val.u32) : 0;
+      cp_next(cp);
+    } else {
+      cp->packstack[cp->curpack] = 255;
+    }
+  end_pack:
+    cp_check(cp, ')');
+  } else {  /* Ignore all other pragmas. */
+    while (cp->tok != CTOK_EOF && cp->linenumber == pragmaline)
+      cp_next(cp);
+  }
+}
+
+/* Handle line number. */
+static void cp_line(CPState *cp, BCLine hashline)
+{
+  BCLine newline = cp->val.u32;
+  /* TODO: Handle file name and include it in error messages. */
+  while (cp->tok != CTOK_EOF && cp->linenumber == hashline)
+    cp_next(cp);
+  cp->linenumber = newline;
+}
+
+/* Parse multiple C declarations of types or extern identifiers. */
+static void cp_decl_multi(CPState *cp)
+{
+  int first = 1;
+  while (cp->tok != CTOK_EOF) {
+    CPDecl decl;
+    CPscl scl;
+    if (cp_opt(cp, ';')) {  /* Skip empty statements. */
+      first = 0;
+      continue;
+    }
+    if (cp->tok == '#') {  /* Workaround, since we have no preprocessor, yet. */
+      BCLine hashline = cp->linenumber;
+      CPToken tok = cp_next(cp);
+      if (tok == CTOK_INTEGER) {
+	cp_line(cp, hashline);
+	continue;
+      } else if (tok == CTOK_IDENT && cp_str_is(cp->str, "line")) {
+	if (cp_next(cp) != CTOK_INTEGER) cp_err_token(cp, tok);
+	cp_line(cp, hashline);
+	continue;
+      } else if (tok == CTOK_IDENT && cp_str_is(cp->str, "pragma")) {
+	cp_pragma(cp, hashline);
+	continue;
+      } else {
+	cp_errmsg(cp, cp->tok, LJ_ERR_XSYMBOL);
+      }
+    }
+    scl = cp_decl_spec(cp, &decl, CDF_TYPEDEF|CDF_EXTERN|CDF_STATIC);
+    if ((cp->tok == ';' || cp->tok == CTOK_EOF) &&
+	ctype_istypedef(decl.stack[0].info)) {
+      CTInfo info = ctype_rawchild(cp->cts, &decl.stack[0])->info;
+      if (ctype_isstruct(info) || ctype_isenum(info))
+	goto decl_end;  /* Accept empty declaration of struct/union/enum. */
+    }
+    for (;;) {
+      CTypeID ctypeid;
+      cp_declarator(cp, &decl);
+      ctypeid = cp_decl_intern(cp, &decl);
+      if (decl.name && !decl.nameid) {  /* NYI: redeclarations are ignored. */
+	CType *ct;
+	CTypeID id;
+	if ((scl & CDF_TYPEDEF)) {  /* Create new typedef. */
+	  id = lj_ctype_new(cp->cts, &ct);
+	  ct->info = CTINFO(CT_TYPEDEF, ctypeid);
+	  goto noredir;
+	} else if (ctype_isfunc(ctype_get(cp->cts, ctypeid)->info)) {
+	  /* Treat both static and extern function declarations as extern. */
+	  ct = ctype_get(cp->cts, ctypeid);
+	  /* We always get new anonymous functions (typedefs are copied). */
+	  lj_assertCP(gcref(ct->name) == NULL, "unexpected named function");
+	  id = ctypeid;  /* Just name it. */
+	} else if ((scl & CDF_STATIC)) {  /* Accept static constants. */
+	  id = cp_decl_constinit(cp, &ct, ctypeid);
+	  goto noredir;
+	} else {  /* External references have extern or no storage class. */
+	  id = lj_ctype_new(cp->cts, &ct);
+	  ct->info = CTINFO(CT_EXTERN, ctypeid);
+	}
+	if (decl.redir) {  /* Add attribute for redirected symbol name. */
+	  CType *cta;
+	  CTypeID aid = lj_ctype_new(cp->cts, &cta);
+	  ct = ctype_get(cp->cts, id);  /* Table may have been reallocated. */
+	  cta->info = CTINFO(CT_ATTRIB, CTATTRIB(CTA_REDIR));
+	  cta->sib = ct->sib;
+	  ct->sib = aid;
+	  ctype_setname(cta, decl.redir);
+	}
+      noredir:
+	ctype_setname(ct, decl.name);
+	lj_ctype_addname(cp->cts, ct, id);
+      }
+      if (!cp_opt(cp, ',')) break;
+      cp_decl_reset(&decl);
+    }
+  decl_end:
+    if (cp->tok == CTOK_EOF && first) break;  /* May omit ';' for 1 decl. */
+    first = 0;
+    cp_check(cp, ';');
+  }
+}
+
+/* Parse a single C type declaration. */
+static void cp_decl_single(CPState *cp)
+{
+  CPDecl decl;
+  cp_decl_spec(cp, &decl, 0);
+  cp_declarator(cp, &decl);
+  cp->val.id = cp_decl_intern(cp, &decl);
+  if (cp->tok != CTOK_EOF) cp_err_token(cp, CTOK_EOF);
+}
+
+/* ------------------------------------------------------------------------ */
+
+/* Protected callback for C parser. */
+static TValue *cpcparser(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  CPState *cp = (CPState *)ud;
+  UNUSED(dummy);
+  cframe_errfunc(L->cframe) = -1;  /* Inherit error function. */
+  cp_init(cp);
+  if ((cp->mode & CPARSE_MODE_MULTI))
+    cp_decl_multi(cp);
+  else
+    cp_decl_single(cp);
+  if (cp->param && cp->param != cp->L->top)
+    cp_err(cp, LJ_ERR_FFI_NUMPARAM);
+  lj_assertCP(cp->depth == 0, "unbalanced cparser declaration depth");
+  return NULL;
+}
+
+/* C parser. */
+int lj_cparse(CPState *cp)
+{
+  LJ_CTYPE_SAVE(cp->cts);
+  int errcode = lj_vm_cpcall(cp->L, NULL, cp, cpcparser);
+  if (errcode)
+    LJ_CTYPE_RESTORE(cp->cts);
+  cp_cleanup(cp);
+  return errcode;
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_cparse.h b/libs/luajit-cmake/luajit/src/lj_cparse.h
new file mode 100644
index 0000000..c0f61ed
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_cparse.h
@@ -0,0 +1,67 @@
+/*
+** C declaration parser.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CPARSE_H
+#define _LJ_CPARSE_H
+
+#include "lj_obj.h"
+#include "lj_ctype.h"
+
+#if LJ_HASFFI
+
+/* C parser limits. */
+#define CPARSE_MAX_BUF		32768	/* Max. token buffer size. */
+#define CPARSE_MAX_DECLSTACK	100	/* Max. declaration stack depth. */
+#define CPARSE_MAX_DECLDEPTH	20	/* Max. recursive declaration depth. */
+#define CPARSE_MAX_PACKSTACK	7	/* Max. pack pragma stack depth. */
+
+/* Flags for C parser mode. */
+#define CPARSE_MODE_MULTI	1	/* Process multiple declarations. */
+#define CPARSE_MODE_ABSTRACT	2	/* Accept abstract declarators. */
+#define CPARSE_MODE_DIRECT	4	/* Accept direct declarators. */
+#define CPARSE_MODE_FIELD	8	/* Accept field width in bits, too. */
+#define CPARSE_MODE_NOIMPLICIT	16	/* Reject implicit declarations. */
+#define CPARSE_MODE_SKIP	32	/* Skip definitions, ignore errors. */
+
+typedef int CPChar;	/* C parser character. Unsigned ext. from char. */
+typedef int CPToken;	/* C parser token. */
+
+/* C parser internal value representation. */
+typedef struct CPValue {
+  union {
+    int32_t i32;	/* Value for CTID_INT32. */
+    uint32_t u32;	/* Value for CTID_UINT32. */
+  };
+  CTypeID id;		/* C Type ID of the value. */
+} CPValue;
+
+/* C parser state. */
+typedef struct CPState {
+  CPChar c;		/* Current character. */
+  CPToken tok;		/* Current token. */
+  CPValue val;		/* Token value. */
+  GCstr *str;		/* Interned string of identifier/keyword. */
+  CType *ct;		/* C type table entry. */
+  const char *p;	/* Current position in input buffer. */
+  SBuf sb;		/* String buffer for tokens. */
+  lua_State *L;		/* Lua state. */
+  CTState *cts;		/* C type state. */
+  TValue *param;	/* C type parameters. */
+  const char *srcname;	/* Current source name. */
+  BCLine linenumber;	/* Input line counter. */
+  int depth;		/* Recursive declaration depth. */
+  uint32_t tmask;	/* Type mask for next identifier. */
+  uint32_t mode;	/* C parser mode. */
+  uint8_t packstack[CPARSE_MAX_PACKSTACK];  /* Stack for pack pragmas. */
+  uint8_t curpack;	/* Current position in pack pragma stack. */
+} CPState;
+
+LJ_FUNC int lj_cparse(CPState *cp);
+
+LJ_FUNC int lj_cparse_case(GCstr *str, const char *match);
+
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_crecord.c b/libs/luajit-cmake/luajit/src/lj_crecord.c
new file mode 100644
index 0000000..bc21d85
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_crecord.c
@@ -0,0 +1,1944 @@
+/*
+** Trace recorder for C data operations.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_ffrecord_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT && LJ_HASFFI
+
+#include "lj_err.h"
+#include "lj_tab.h"
+#include "lj_frame.h"
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#include "lj_cparse.h"
+#include "lj_cconv.h"
+#include "lj_carith.h"
+#include "lj_clib.h"
+#include "lj_ccall.h"
+#include "lj_ff.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_ircall.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#include "lj_record.h"
+#include "lj_ffrecord.h"
+#include "lj_snap.h"
+#include "lj_crecord.h"
+#include "lj_dispatch.h"
+#include "lj_strfmt.h"
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)			(&J->cur.ir[(ref)])
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+#define emitconv(a, dt, st, flags) \
+  emitir(IRT(IR_CONV, (dt)), (a), (st)|((dt) << 5)|(flags))
+
+/* -- C type checks ------------------------------------------------------- */
+
+static GCcdata *argv2cdata(jit_State *J, TRef tr, cTValue *o)
+{
+  GCcdata *cd;
+  TRef trtypeid;
+  if (!tref_iscdata(tr))
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  cd = cdataV(o);
+  /* Specialize to the CTypeID. */
+  trtypeid = emitir(IRT(IR_FLOAD, IRT_U16), tr, IRFL_CDATA_CTYPEID);
+  emitir(IRTG(IR_EQ, IRT_INT), trtypeid, lj_ir_kint(J, (int32_t)cd->ctypeid));
+  return cd;
+}
+
+/* Specialize to the CTypeID held by a cdata constructor. */
+static CTypeID crec_constructor(jit_State *J, GCcdata *cd, TRef tr)
+{
+  CTypeID id;
+  lj_assertJ(tref_iscdata(tr) && cd->ctypeid == CTID_CTYPEID,
+	     "expected CTypeID cdata");
+  id = *(CTypeID *)cdataptr(cd);
+  tr = emitir(IRT(IR_FLOAD, IRT_INT), tr, IRFL_CDATA_INT);
+  emitir(IRTG(IR_EQ, IRT_INT), tr, lj_ir_kint(J, (int32_t)id));
+  return id;
+}
+
+static CTypeID argv2ctype(jit_State *J, TRef tr, cTValue *o)
+{
+  if (tref_isstr(tr)) {
+    GCstr *s = strV(o);
+    CPState cp;
+    CTypeID oldtop;
+    /* Specialize to the string containing the C type declaration. */
+    emitir(IRTG(IR_EQ, IRT_STR), tr, lj_ir_kstr(J, s));
+    cp.L = J->L;
+    cp.cts = ctype_cts(J->L);
+    oldtop = cp.cts->top;
+    cp.srcname = strdata(s);
+    cp.p = strdata(s);
+    cp.param = NULL;
+    cp.mode = CPARSE_MODE_ABSTRACT|CPARSE_MODE_NOIMPLICIT;
+    if (lj_cparse(&cp) || cp.cts->top > oldtop)  /* Avoid new struct defs. */
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+    return cp.val.id;
+  } else {
+    GCcdata *cd = argv2cdata(J, tr, o);
+    return cd->ctypeid == CTID_CTYPEID ? crec_constructor(J, cd, tr) :
+					cd->ctypeid;
+  }
+}
+
+/* Convert CType to IRType (if possible). */
+static IRType crec_ct2irt(CTState *cts, CType *ct)
+{
+  if (ctype_isenum(ct->info)) ct = ctype_child(cts, ct);
+  if (LJ_LIKELY(ctype_isnum(ct->info))) {
+    if ((ct->info & CTF_FP)) {
+      if (ct->size == sizeof(double))
+	return IRT_NUM;
+      else if (ct->size == sizeof(float))
+	return IRT_FLOAT;
+    } else {
+      uint32_t b = lj_fls(ct->size);
+      if (b <= 3)
+	return IRT_I8 + 2*b + ((ct->info & CTF_UNSIGNED) ? 1 : 0);
+    }
+  } else if (ctype_isptr(ct->info)) {
+    return (LJ_64 && ct->size == 8) ? IRT_P64 : IRT_P32;
+  } else if (ctype_iscomplex(ct->info)) {
+    if (ct->size == 2*sizeof(double))
+      return IRT_NUM;
+    else if (ct->size == 2*sizeof(float))
+      return IRT_FLOAT;
+  }
+  return IRT_CDATA;
+}
+
+/* -- Optimized memory fill and copy -------------------------------------- */
+
+/* Maximum length and unroll of inlined copy/fill. */
+#define CREC_COPY_MAXUNROLL		16
+#define CREC_COPY_MAXLEN		128
+
+#define CREC_FILL_MAXUNROLL		16
+
+/* Number of windowed registers used for optimized memory copy. */
+#if LJ_TARGET_X86
+#define CREC_COPY_REGWIN		2
+#elif LJ_TARGET_PPC || LJ_TARGET_MIPS
+#define CREC_COPY_REGWIN		8
+#else
+#define CREC_COPY_REGWIN		4
+#endif
+
+/* List of memory offsets for copy/fill. */
+typedef struct CRecMemList {
+  CTSize ofs;		/* Offset in bytes. */
+  IRType tp;		/* Type of load/store. */
+  TRef trofs;		/* TRef of interned offset. */
+  TRef trval;		/* TRef of load value. */
+} CRecMemList;
+
+/* Generate copy list for element-wise struct copy. */
+static MSize crec_copy_struct(CRecMemList *ml, CTState *cts, CType *ct)
+{
+  CTypeID fid = ct->sib;
+  MSize mlp = 0;
+  while (fid) {
+    CType *df = ctype_get(cts, fid);
+    fid = df->sib;
+    if (ctype_isfield(df->info)) {
+      CType *cct;
+      IRType tp;
+      if (!gcref(df->name)) continue;  /* Ignore unnamed fields. */
+      cct = ctype_rawchild(cts, df);  /* Field type. */
+      tp = crec_ct2irt(cts, cct);
+      if (tp == IRT_CDATA) return 0;  /* NYI: aggregates. */
+      if (mlp >= CREC_COPY_MAXUNROLL) return 0;
+      ml[mlp].ofs = df->size;
+      ml[mlp].tp = tp;
+      mlp++;
+      if (ctype_iscomplex(cct->info)) {
+	if (mlp >= CREC_COPY_MAXUNROLL) return 0;
+	ml[mlp].ofs = df->size + (cct->size >> 1);
+	ml[mlp].tp = tp;
+	mlp++;
+      }
+    } else if (!ctype_isconstval(df->info)) {
+      /* NYI: bitfields and sub-structures. */
+      return 0;
+    }
+  }
+  return mlp;
+}
+
+/* Generate unrolled copy list, from highest to lowest step size/alignment. */
+static MSize crec_copy_unroll(CRecMemList *ml, CTSize len, CTSize step,
+			      IRType tp)
+{
+  CTSize ofs = 0;
+  MSize mlp = 0;
+  if (tp == IRT_CDATA) tp = IRT_U8 + 2*lj_fls(step);
+  do {
+    while (ofs + step <= len) {
+      if (mlp >= CREC_COPY_MAXUNROLL) return 0;
+      ml[mlp].ofs = ofs;
+      ml[mlp].tp = tp;
+      mlp++;
+      ofs += step;
+    }
+    step >>= 1;
+    tp -= 2;
+  } while (ofs < len);
+  return mlp;
+}
+
+/*
+** Emit copy list with windowed loads/stores.
+** LJ_TARGET_UNALIGNED: may emit unaligned loads/stores (not marked as such).
+*/
+static void crec_copy_emit(jit_State *J, CRecMemList *ml, MSize mlp,
+			   TRef trdst, TRef trsrc)
+{
+  MSize i, j, rwin = 0;
+  for (i = 0, j = 0; i < mlp; ) {
+    TRef trofs = lj_ir_kintp(J, ml[i].ofs);
+    TRef trsptr = emitir(IRT(IR_ADD, IRT_PTR), trsrc, trofs);
+    ml[i].trval = emitir(IRT(IR_XLOAD, ml[i].tp), trsptr, 0);
+    ml[i].trofs = trofs;
+    i++;
+    rwin += (LJ_SOFTFP32 && ml[i].tp == IRT_NUM) ? 2 : 1;
+    if (rwin >= CREC_COPY_REGWIN || i >= mlp) {  /* Flush buffered stores. */
+      rwin = 0;
+      for ( ; j < i; j++) {
+	TRef trdptr = emitir(IRT(IR_ADD, IRT_PTR), trdst, ml[j].trofs);
+	emitir(IRT(IR_XSTORE, ml[j].tp), trdptr, ml[j].trval);
+      }
+    }
+  }
+}
+
+/* Optimized memory copy. */
+static void crec_copy(jit_State *J, TRef trdst, TRef trsrc, TRef trlen,
+		      CType *ct)
+{
+  if (tref_isk(trlen)) {  /* Length must be constant. */
+    CRecMemList ml[CREC_COPY_MAXUNROLL];
+    MSize mlp = 0;
+    CTSize step = 1, len = (CTSize)IR(tref_ref(trlen))->i;
+    IRType tp = IRT_CDATA;
+    int needxbar = 0;
+    if (len == 0) return;  /* Shortcut. */
+    if (len > CREC_COPY_MAXLEN) goto fallback;
+    if (ct) {
+      CTState *cts = ctype_ctsG(J2G(J));
+      lj_assertJ(ctype_isarray(ct->info) || ctype_isstruct(ct->info),
+		 "copy of non-aggregate");
+      if (ctype_isarray(ct->info)) {
+	CType *cct = ctype_rawchild(cts, ct);
+	tp = crec_ct2irt(cts, cct);
+	if (tp == IRT_CDATA) goto rawcopy;
+	step = lj_ir_type_size[tp];
+	lj_assertJ((len & (step-1)) == 0, "copy of fractional size");
+      } else if ((ct->info & CTF_UNION)) {
+	step = (1u << ctype_align(ct->info));
+	goto rawcopy;
+      } else {
+	mlp = crec_copy_struct(ml, cts, ct);
+	goto emitcopy;
+      }
+    } else {
+    rawcopy:
+      needxbar = 1;
+      if (LJ_TARGET_UNALIGNED || step >= CTSIZE_PTR)
+	step = CTSIZE_PTR;
+    }
+    mlp = crec_copy_unroll(ml, len, step, tp);
+  emitcopy:
+    if (mlp) {
+      crec_copy_emit(J, ml, mlp, trdst, trsrc);
+      if (needxbar)
+	emitir(IRT(IR_XBAR, IRT_NIL), 0, 0);
+      return;
+    }
+  }
+fallback:
+  /* Call memcpy. Always needs a barrier to disable alias analysis. */
+  lj_ir_call(J, IRCALL_memcpy, trdst, trsrc, trlen);
+  emitir(IRT(IR_XBAR, IRT_NIL), 0, 0);
+}
+
+/* Generate unrolled fill list, from highest to lowest step size/alignment. */
+static MSize crec_fill_unroll(CRecMemList *ml, CTSize len, CTSize step)
+{
+  CTSize ofs = 0;
+  MSize mlp = 0;
+  IRType tp = IRT_U8 + 2*lj_fls(step);
+  do {
+    while (ofs + step <= len) {
+      if (mlp >= CREC_COPY_MAXUNROLL) return 0;
+      ml[mlp].ofs = ofs;
+      ml[mlp].tp = tp;
+      mlp++;
+      ofs += step;
+    }
+    step >>= 1;
+    tp -= 2;
+  } while (ofs < len);
+  return mlp;
+}
+
+/*
+** Emit stores for fill list.
+** LJ_TARGET_UNALIGNED: may emit unaligned stores (not marked as such).
+*/
+static void crec_fill_emit(jit_State *J, CRecMemList *ml, MSize mlp,
+			   TRef trdst, TRef trfill)
+{
+  MSize i;
+  for (i = 0; i < mlp; i++) {
+    TRef trofs = lj_ir_kintp(J, ml[i].ofs);
+    TRef trdptr = emitir(IRT(IR_ADD, IRT_PTR), trdst, trofs);
+    emitir(IRT(IR_XSTORE, ml[i].tp), trdptr, trfill);
+  }
+}
+
+/* Optimized memory fill. */
+static void crec_fill(jit_State *J, TRef trdst, TRef trlen, TRef trfill,
+		      CTSize step)
+{
+  if (tref_isk(trlen)) {  /* Length must be constant. */
+    CRecMemList ml[CREC_FILL_MAXUNROLL];
+    MSize mlp;
+    CTSize len = (CTSize)IR(tref_ref(trlen))->i;
+    if (len == 0) return;  /* Shortcut. */
+    if (LJ_TARGET_UNALIGNED || step >= CTSIZE_PTR)
+      step = CTSIZE_PTR;
+    if (step * CREC_FILL_MAXUNROLL < len) goto fallback;
+    mlp = crec_fill_unroll(ml, len, step);
+    if (!mlp) goto fallback;
+    if (tref_isk(trfill) || ml[0].tp != IRT_U8)
+      trfill = emitconv(trfill, IRT_INT, IRT_U8, 0);
+    if (ml[0].tp != IRT_U8) {  /* Scatter U8 to U16/U32/U64. */
+      if (CTSIZE_PTR == 8 && ml[0].tp == IRT_U64) {
+	if (tref_isk(trfill))  /* Pointless on x64 with zero-extended regs. */
+	  trfill = emitconv(trfill, IRT_U64, IRT_U32, 0);
+	trfill = emitir(IRT(IR_MUL, IRT_U64), trfill,
+			lj_ir_kint64(J, U64x(01010101,01010101)));
+      } else {
+	trfill = emitir(IRTI(IR_MUL), trfill,
+		   lj_ir_kint(J, ml[0].tp == IRT_U16 ? 0x0101 : 0x01010101));
+      }
+    }
+    crec_fill_emit(J, ml, mlp, trdst, trfill);
+  } else {
+fallback:
+    /* Call memset. Always needs a barrier to disable alias analysis. */
+    lj_ir_call(J, IRCALL_memset, trdst, trfill, trlen);  /* Note: arg order! */
+  }
+  emitir(IRT(IR_XBAR, IRT_NIL), 0, 0);
+}
+
+/* -- Convert C type to C type -------------------------------------------- */
+
+/*
+** This code mirrors the code in lj_cconv.c. It performs the same steps
+** for the trace recorder that lj_cconv.c does for the interpreter.
+**
+** One major difference is that we can get away with much fewer checks
+** here. E.g. checks for casts, constness or correct types can often be
+** omitted, even if they might fail. The interpreter subsequently throws
+** an error, which aborts the trace.
+**
+** All operations are specialized to their C types, so the on-trace
+** outcome must be the same as the outcome in the interpreter. If the
+** interpreter doesn't throw an error, then the trace is correct, too.
+** Care must be taken not to generate invalid (temporary) IR or to
+** trigger asserts.
+*/
+
+/* Determine whether a passed number or cdata number is non-zero. */
+static int crec_isnonzero(CType *s, void *p)
+{
+  if (p == (void *)0)
+    return 0;
+  if (p == (void *)1)
+    return 1;
+  if ((s->info & CTF_FP)) {
+    if (s->size == sizeof(float))
+      return (*(float *)p != 0);
+    else
+      return (*(double *)p != 0);
+  } else {
+    if (s->size == 1)
+      return (*(uint8_t *)p != 0);
+    else if (s->size == 2)
+      return (*(uint16_t *)p != 0);
+    else if (s->size == 4)
+      return (*(uint32_t *)p != 0);
+    else
+      return (*(uint64_t *)p != 0);
+  }
+}
+
+static TRef crec_ct_ct(jit_State *J, CType *d, CType *s, TRef dp, TRef sp,
+		       void *svisnz)
+{
+  IRType dt = crec_ct2irt(ctype_ctsG(J2G(J)), d);
+  IRType st = crec_ct2irt(ctype_ctsG(J2G(J)), s);
+  CTSize dsize = d->size, ssize = s->size;
+  CTInfo dinfo = d->info, sinfo = s->info;
+
+  if (ctype_type(dinfo) > CT_MAYCONVERT || ctype_type(sinfo) > CT_MAYCONVERT)
+    goto err_conv;
+
+  /*
+  ** Note: Unlike lj_cconv_ct_ct(), sp holds the _value_ of pointers and
+  ** numbers up to 8 bytes. Otherwise sp holds a pointer.
+  */
+
+  switch (cconv_idx2(dinfo, sinfo)) {
+  /* Destination is a bool. */
+  case CCX(B, B):
+    goto xstore;  /* Source operand is already normalized. */
+  case CCX(B, I):
+  case CCX(B, F):
+    if (st != IRT_CDATA) {
+      /* Specialize to the result of a comparison against 0. */
+      TRef zero = (st == IRT_NUM  || st == IRT_FLOAT) ? lj_ir_knum(J, 0) :
+		  (st == IRT_I64 || st == IRT_U64) ? lj_ir_kint64(J, 0) :
+		  lj_ir_kint(J, 0);
+      int isnz = crec_isnonzero(s, svisnz);
+      emitir(IRTG(isnz ? IR_NE : IR_EQ, st), sp, zero);
+      sp = lj_ir_kint(J, isnz);
+      goto xstore;
+    }
+    goto err_nyi;
+
+  /* Destination is an integer. */
+  case CCX(I, B):
+  case CCX(I, I):
+  conv_I_I:
+    if (dt == IRT_CDATA || st == IRT_CDATA) goto err_nyi;
+    /* Extend 32 to 64 bit integer. */
+    if (dsize == 8 && ssize < 8 && !(LJ_64 && (sinfo & CTF_UNSIGNED)))
+      sp = emitconv(sp, dt, ssize < 4 ? IRT_INT : st,
+		    (sinfo & CTF_UNSIGNED) ? 0 : IRCONV_SEXT);
+    else if (dsize < 8 && ssize == 8)  /* Truncate from 64 bit integer. */
+      sp = emitconv(sp, dsize < 4 ? IRT_INT : dt, st, 0);
+    else if (st == IRT_INT)
+      sp = lj_opt_narrow_toint(J, sp);
+  xstore:
+    if (dt == IRT_I64 || dt == IRT_U64) lj_needsplit(J);
+    if (dp == 0) return sp;
+    emitir(IRT(IR_XSTORE, dt), dp, sp);
+    break;
+  case CCX(I, C):
+    sp = emitir(IRT(IR_XLOAD, st), sp, 0);  /* Load re. */
+    /* fallthrough */
+  case CCX(I, F):
+    if (dt == IRT_CDATA || st == IRT_CDATA) goto err_nyi;
+    sp = emitconv(sp, dsize < 4 ? IRT_INT : dt, st, IRCONV_ANY);
+    goto xstore;
+  case CCX(I, P):
+  case CCX(I, A):
+    sinfo = CTINFO(CT_NUM, CTF_UNSIGNED);
+    ssize = CTSIZE_PTR;
+    st = IRT_UINTP;
+    if (((dsize ^ ssize) & 8) == 0) {  /* Must insert no-op type conversion. */
+      sp = emitconv(sp, dsize < 4 ? IRT_INT : dt, IRT_PTR, 0);
+      goto xstore;
+    }
+    goto conv_I_I;
+
+  /* Destination is a floating-point number. */
+  case CCX(F, B):
+  case CCX(F, I):
+  conv_F_I:
+    if (dt == IRT_CDATA || st == IRT_CDATA) goto err_nyi;
+    sp = emitconv(sp, dt, ssize < 4 ? IRT_INT : st, 0);
+    goto xstore;
+  case CCX(F, C):
+    sp = emitir(IRT(IR_XLOAD, st), sp, 0);  /* Load re. */
+    /* fallthrough */
+  case CCX(F, F):
+  conv_F_F:
+    if (dt == IRT_CDATA || st == IRT_CDATA) goto err_nyi;
+    if (dt != st) sp = emitconv(sp, dt, st, 0);
+    goto xstore;
+
+  /* Destination is a complex number. */
+  case CCX(C, I):
+  case CCX(C, F):
+    {  /* Clear im. */
+      TRef ptr = emitir(IRT(IR_ADD, IRT_PTR), dp, lj_ir_kintp(J, (dsize >> 1)));
+      emitir(IRT(IR_XSTORE, dt), ptr, lj_ir_knum(J, 0));
+    }
+    /* Convert to re. */
+    if ((sinfo & CTF_FP)) goto conv_F_F; else goto conv_F_I;
+
+  case CCX(C, C):
+    if (dt == IRT_CDATA || st == IRT_CDATA) goto err_nyi;
+    {
+      TRef re, im, ptr;
+      re = emitir(IRT(IR_XLOAD, st), sp, 0);
+      ptr = emitir(IRT(IR_ADD, IRT_PTR), sp, lj_ir_kintp(J, (ssize >> 1)));
+      im = emitir(IRT(IR_XLOAD, st), ptr, 0);
+      if (dt != st) {
+	re = emitconv(re, dt, st, 0);
+	im = emitconv(im, dt, st, 0);
+      }
+      emitir(IRT(IR_XSTORE, dt), dp, re);
+      ptr = emitir(IRT(IR_ADD, IRT_PTR), dp, lj_ir_kintp(J, (dsize >> 1)));
+      emitir(IRT(IR_XSTORE, dt), ptr, im);
+    }
+    break;
+
+  /* Destination is a vector. */
+  case CCX(V, I):
+  case CCX(V, F):
+  case CCX(V, C):
+  case CCX(V, V):
+    goto err_nyi;
+
+  /* Destination is a pointer. */
+  case CCX(P, P):
+  case CCX(P, A):
+  case CCX(P, S):
+    /* There are only 32 bit pointers/addresses on 32 bit machines.
+    ** Also ok on x64, since all 32 bit ops clear the upper part of the reg.
+    */
+    goto xstore;
+  case CCX(P, I):
+    if (st == IRT_CDATA) goto err_nyi;
+    if (!LJ_64 && ssize == 8)  /* Truncate from 64 bit integer. */
+      sp = emitconv(sp, IRT_U32, st, 0);
+    goto xstore;
+  case CCX(P, F):
+    if (st == IRT_CDATA) goto err_nyi;
+    /* The signed conversion is cheaper. x64 really has 47 bit pointers. */
+    sp = emitconv(sp, (LJ_64 && dsize == 8) ? IRT_I64 : IRT_U32,
+		  st, IRCONV_ANY);
+    goto xstore;
+
+  /* Destination is an array. */
+  case CCX(A, A):
+  /* Destination is a struct/union. */
+  case CCX(S, S):
+    if (dp == 0) goto err_conv;
+    crec_copy(J, dp, sp, lj_ir_kint(J, dsize), d);
+    break;
+
+  default:
+  err_conv:
+  err_nyi:
+    lj_trace_err(J, LJ_TRERR_NYICONV);
+    break;
+  }
+  return 0;
+}
+
+/* -- Convert C type to TValue (load) ------------------------------------- */
+
+static TRef crec_tv_ct(jit_State *J, CType *s, CTypeID sid, TRef sp)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  IRType t = crec_ct2irt(cts, s);
+  CTInfo sinfo = s->info;
+  if (ctype_isnum(sinfo)) {
+    TRef tr;
+    if (t == IRT_CDATA)
+      goto err_nyi;  /* NYI: copyval of >64 bit integers. */
+    tr = emitir(IRT(IR_XLOAD, t), sp, 0);
+    if (t == IRT_FLOAT || t == IRT_U32) {  /* Keep uint32_t/float as numbers. */
+      return emitconv(tr, IRT_NUM, t, 0);
+    } else if (t == IRT_I64 || t == IRT_U64) {  /* Box 64 bit integer. */
+      sp = tr;
+      lj_needsplit(J);
+    } else if ((sinfo & CTF_BOOL)) {
+      /* Assume not equal to zero. Fixup and emit pending guard later. */
+      lj_ir_set(J, IRTGI(IR_NE), tr, lj_ir_kint(J, 0));
+      J->postproc = LJ_POST_FIXGUARD;
+      return TREF_TRUE;
+    } else {
+      return tr;
+    }
+  } else if (ctype_isptr(sinfo) || ctype_isenum(sinfo)) {
+    sp = emitir(IRT(IR_XLOAD, t), sp, 0);  /* Box pointers and enums. */
+  } else if (ctype_isrefarray(sinfo) || ctype_isstruct(sinfo)) {
+    cts->L = J->L;
+    sid = lj_ctype_intern(cts, CTINFO_REF(sid), CTSIZE_PTR);  /* Create ref. */
+  } else if (ctype_iscomplex(sinfo)) {  /* Unbox/box complex. */
+    ptrdiff_t esz = (ptrdiff_t)(s->size >> 1);
+    TRef ptr, tr1, tr2, dp;
+    dp = emitir(IRTG(IR_CNEW, IRT_CDATA), lj_ir_kint(J, sid), TREF_NIL);
+    tr1 = emitir(IRT(IR_XLOAD, t), sp, 0);
+    ptr = emitir(IRT(IR_ADD, IRT_PTR), sp, lj_ir_kintp(J, esz));
+    tr2 = emitir(IRT(IR_XLOAD, t), ptr, 0);
+    ptr = emitir(IRT(IR_ADD, IRT_PTR), dp, lj_ir_kintp(J, sizeof(GCcdata)));
+    emitir(IRT(IR_XSTORE, t), ptr, tr1);
+    ptr = emitir(IRT(IR_ADD, IRT_PTR), dp, lj_ir_kintp(J, sizeof(GCcdata)+esz));
+    emitir(IRT(IR_XSTORE, t), ptr, tr2);
+    return dp;
+  } else {
+    /* NYI: copyval of vectors. */
+  err_nyi:
+    lj_trace_err(J, LJ_TRERR_NYICONV);
+  }
+  /* Box pointer, ref, enum or 64 bit integer. */
+  return emitir(IRTG(IR_CNEWI, IRT_CDATA), lj_ir_kint(J, sid), sp);
+}
+
+/* -- Convert TValue to C type (store) ------------------------------------ */
+
+static TRef crec_ct_tv(jit_State *J, CType *d, TRef dp, TRef sp, cTValue *sval)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  CTypeID sid = CTID_P_VOID;
+  void *svisnz = 0;
+  CType *s;
+  if (LJ_LIKELY(tref_isinteger(sp))) {
+    sid = CTID_INT32;
+    svisnz = (void *)(intptr_t)(tvisint(sval)?(intV(sval)!=0):!tviszero(sval));
+  } else if (tref_isnum(sp)) {
+    sid = CTID_DOUBLE;
+    svisnz = (void *)(intptr_t)(tvisint(sval)?(intV(sval)!=0):!tviszero(sval));
+  } else if (tref_isbool(sp)) {
+    sp = lj_ir_kint(J, tref_istrue(sp) ? 1 : 0);
+    sid = CTID_BOOL;
+  } else if (tref_isnil(sp)) {
+    sp = lj_ir_kptr(J, NULL);
+  } else if (tref_isudata(sp)) {
+    GCudata *ud = udataV(sval);
+    if (ud->udtype == UDTYPE_IO_FILE || ud->udtype == UDTYPE_BUFFER) {
+      TRef tr = emitir(IRT(IR_FLOAD, IRT_U8), sp, IRFL_UDATA_UDTYPE);
+      emitir(IRTGI(IR_EQ), tr, lj_ir_kint(J, ud->udtype));
+      sp = emitir(IRT(IR_FLOAD, IRT_PTR), sp,
+		  ud->udtype == UDTYPE_IO_FILE ? IRFL_UDATA_FILE :
+						 IRFL_SBUF_R);
+    } else {
+      sp = emitir(IRT(IR_ADD, IRT_PTR), sp, lj_ir_kintp(J, sizeof(GCudata)));
+    }
+  } else if (tref_isstr(sp)) {
+    if (ctype_isenum(d->info)) {  /* Match string against enum constant. */
+      GCstr *str = strV(sval);
+      CTSize ofs;
+      CType *cct = lj_ctype_getfield(cts, d, str, &ofs);
+      /* Specialize to the name of the enum constant. */
+      emitir(IRTG(IR_EQ, IRT_STR), sp, lj_ir_kstr(J, str));
+      if (cct && ctype_isconstval(cct->info)) {
+	lj_assertJ(ctype_child(cts, cct)->size == 4,
+		   "only 32 bit const supported");  /* NYI */
+	svisnz = (void *)(intptr_t)(ofs != 0);
+	sp = lj_ir_kint(J, (int32_t)ofs);
+	sid = ctype_cid(cct->info);
+      }  /* else: interpreter will throw. */
+    } else if (ctype_isrefarray(d->info)) {  /* Copy string to array. */
+      lj_trace_err(J, LJ_TRERR_BADTYPE);  /* NYI */
+    } else {  /* Otherwise pass the string data as a const char[]. */
+      /* Don't use STRREF. It folds with SNEW, which loses the trailing NUL. */
+      sp = emitir(IRT(IR_ADD, IRT_PTR), sp, lj_ir_kintp(J, sizeof(GCstr)));
+      sid = CTID_A_CCHAR;
+    }
+  } else if (tref_islightud(sp)) {
+#if LJ_64
+    lj_trace_err(J, LJ_TRERR_NYICONV);
+#endif
+  } else {  /* NYI: tref_istab(sp). */
+    IRType t;
+    sid = argv2cdata(J, sp, sval)->ctypeid;
+    s = ctype_raw(cts, sid);
+    svisnz = cdataptr(cdataV(sval));
+    if (ctype_isfunc(s->info)) {
+      sid = lj_ctype_intern(cts, CTINFO(CT_PTR, CTALIGN_PTR|sid), CTSIZE_PTR);
+      s = ctype_get(cts, sid);
+      t = IRT_PTR;
+    } else {
+      t = crec_ct2irt(cts, s);
+    }
+    if (ctype_isptr(s->info)) {
+      sp = emitir(IRT(IR_FLOAD, t), sp, IRFL_CDATA_PTR);
+      if (ctype_isref(s->info)) {
+	svisnz = *(void **)svisnz;
+	s = ctype_rawchild(cts, s);
+	if (ctype_isenum(s->info)) s = ctype_child(cts, s);
+	t = crec_ct2irt(cts, s);
+      } else {
+	goto doconv;
+      }
+    } else if (t == IRT_I64 || t == IRT_U64) {
+      sp = emitir(IRT(IR_FLOAD, t), sp, IRFL_CDATA_INT64);
+      lj_needsplit(J);
+      goto doconv;
+    } else if (t == IRT_INT || t == IRT_U32) {
+      if (ctype_isenum(s->info)) s = ctype_child(cts, s);
+      sp = emitir(IRT(IR_FLOAD, t), sp, IRFL_CDATA_INT);
+      goto doconv;
+    } else {
+      sp = emitir(IRT(IR_ADD, IRT_PTR), sp, lj_ir_kintp(J, sizeof(GCcdata)));
+    }
+    if (ctype_isnum(s->info) && t != IRT_CDATA)
+      sp = emitir(IRT(IR_XLOAD, t), sp, 0);  /* Load number value. */
+    goto doconv;
+  }
+  s = ctype_get(cts, sid);
+doconv:
+  if (ctype_isenum(d->info)) d = ctype_child(cts, d);
+  return crec_ct_ct(J, d, s, dp, sp, svisnz);
+}
+
+/* -- C data metamethods -------------------------------------------------- */
+
+/* This would be rather difficult in FOLD, so do it here:
+** (base+k)+(idx*sz)+ofs ==> (base+idx*sz)+(ofs+k)
+** (base+(idx+k)*sz)+ofs ==> (base+idx*sz)+(ofs+k*sz)
+*/
+static TRef crec_reassoc_ofs(jit_State *J, TRef tr, ptrdiff_t *ofsp, MSize sz)
+{
+  IRIns *ir = IR(tref_ref(tr));
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD) && irref_isk(ir->op2) &&
+      (ir->o == IR_ADD || ir->o == IR_ADDOV || ir->o == IR_SUBOV)) {
+    IRIns *irk = IR(ir->op2);
+    ptrdiff_t k;
+    if (LJ_64 && irk->o == IR_KINT64)
+      k = (ptrdiff_t)ir_kint64(irk)->u64 * sz;
+    else
+      k = (ptrdiff_t)irk->i * sz;
+    if (ir->o == IR_SUBOV) *ofsp -= k; else *ofsp += k;
+    tr = ir->op1;  /* Not a TRef, but the caller doesn't care. */
+  }
+  return tr;
+}
+
+/* Tailcall to function. */
+static void crec_tailcall(jit_State *J, RecordFFData *rd, cTValue *tv)
+{
+  TRef kfunc = lj_ir_kfunc(J, funcV(tv));
+#if LJ_FR2
+  J->base[-2] = kfunc;
+  J->base[-1] = TREF_FRAME;
+#else
+  J->base[-1] = kfunc | TREF_FRAME;
+#endif
+  rd->nres = -1;  /* Pending tailcall. */
+}
+
+/* Record ctype __index/__newindex metamethods. */
+static void crec_index_meta(jit_State *J, CTState *cts, CType *ct,
+			    RecordFFData *rd)
+{
+  CTypeID id = ctype_typeid(cts, ct);
+  cTValue *tv = lj_ctype_meta(cts, id, rd->data ? MM_newindex : MM_index);
+  if (!tv)
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  if (tvisfunc(tv)) {
+    crec_tailcall(J, rd, tv);
+  } else if (rd->data == 0 && tvistab(tv) && tref_isstr(J->base[1])) {
+    /* Specialize to result of __index lookup. */
+    cTValue *o = lj_tab_get(J->L, tabV(tv), &rd->argv[1]);
+    J->base[0] = lj_record_constify(J, o);
+    if (!J->base[0])
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+    /* Always specialize to the key. */
+    emitir(IRTG(IR_EQ, IRT_STR), J->base[1], lj_ir_kstr(J, strV(&rd->argv[1])));
+  } else {
+    /* NYI: resolving of non-function metamethods. */
+    /* NYI: non-string keys for __index table. */
+    /* NYI: stores to __newindex table. */
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  }
+}
+
+/* Record bitfield load/store. */
+static void crec_index_bf(jit_State *J, RecordFFData *rd, TRef ptr, CTInfo info)
+{
+  IRType t = IRT_I8 + 2*lj_fls(ctype_bitcsz(info)) + ((info&CTF_UNSIGNED)?1:0);
+  TRef tr = emitir(IRT(IR_XLOAD, t), ptr, 0);
+  CTSize pos = ctype_bitpos(info), bsz = ctype_bitbsz(info), shift = 32 - bsz;
+  lj_assertJ(t <= IRT_U32, "only 32 bit bitfields supported");  /* NYI */
+  if (rd->data == 0) {  /* __index metamethod. */
+    if ((info & CTF_BOOL)) {
+      tr = emitir(IRTI(IR_BAND), tr, lj_ir_kint(J, (int32_t)((1u << pos))));
+      /* Assume not equal to zero. Fixup and emit pending guard later. */
+      lj_ir_set(J, IRTGI(IR_NE), tr, lj_ir_kint(J, 0));
+      J->postproc = LJ_POST_FIXGUARD;
+      tr = TREF_TRUE;
+    } else if (!(info & CTF_UNSIGNED)) {
+      tr = emitir(IRTI(IR_BSHL), tr, lj_ir_kint(J, shift - pos));
+      tr = emitir(IRTI(IR_BSAR), tr, lj_ir_kint(J, shift));
+    } else {
+      lj_assertJ(bsz < 32, "unexpected full bitfield index");
+      tr = emitir(IRTI(IR_BSHR), tr, lj_ir_kint(J, pos));
+      tr = emitir(IRTI(IR_BAND), tr, lj_ir_kint(J, (int32_t)((1u << bsz)-1)));
+      /* We can omit the U32 to NUM conversion, since bsz < 32. */
+    }
+    J->base[0] = tr;
+  } else {  /* __newindex metamethod. */
+    CTState *cts = ctype_ctsG(J2G(J));
+    CType *ct = ctype_get(cts,
+			  (info & CTF_BOOL) ? CTID_BOOL :
+			  (info & CTF_UNSIGNED) ? CTID_UINT32 : CTID_INT32);
+    int32_t mask = (int32_t)(((1u << bsz)-1) << pos);
+    TRef sp = crec_ct_tv(J, ct, 0, J->base[2], &rd->argv[2]);
+    sp = emitir(IRTI(IR_BSHL), sp, lj_ir_kint(J, pos));
+    /* Use of the target type avoids forwarding conversions. */
+    sp = emitir(IRT(IR_BAND, t), sp, lj_ir_kint(J, mask));
+    tr = emitir(IRT(IR_BAND, t), tr, lj_ir_kint(J, (int32_t)~mask));
+    tr = emitir(IRT(IR_BOR, t), tr, sp);
+    emitir(IRT(IR_XSTORE, t), ptr, tr);
+    rd->nres = 0;
+    J->needsnap = 1;
+  }
+}
+
+void LJ_FASTCALL recff_cdata_index(jit_State *J, RecordFFData *rd)
+{
+  TRef idx, ptr = J->base[0];
+  ptrdiff_t ofs = sizeof(GCcdata);
+  GCcdata *cd = argv2cdata(J, ptr, &rd->argv[0]);
+  CTState *cts = ctype_ctsG(J2G(J));
+  CType *ct = ctype_raw(cts, cd->ctypeid);
+  CTypeID sid = 0;
+
+  /* Resolve pointer or reference for cdata object. */
+  if (ctype_isptr(ct->info)) {
+    IRType t = (LJ_64 && ct->size == 8) ? IRT_P64 : IRT_P32;
+    if (ctype_isref(ct->info)) ct = ctype_rawchild(cts, ct);
+    ptr = emitir(IRT(IR_FLOAD, t), ptr, IRFL_CDATA_PTR);
+    ofs = 0;
+    ptr = crec_reassoc_ofs(J, ptr, &ofs, 1);
+  }
+
+again:
+  idx = J->base[1];
+  if (tref_isnumber(idx)) {
+    idx = lj_opt_narrow_cindex(J, idx);
+    if (ctype_ispointer(ct->info)) {
+      CTSize sz;
+  integer_key:
+      if ((ct->info & CTF_COMPLEX))
+	idx = emitir(IRT(IR_BAND, IRT_INTP), idx, lj_ir_kintp(J, 1));
+      sz = lj_ctype_size(cts, (sid = ctype_cid(ct->info)));
+      idx = crec_reassoc_ofs(J, idx, &ofs, sz);
+#if LJ_TARGET_ARM || LJ_TARGET_PPC
+      /* Hoist base add to allow fusion of index/shift into operands. */
+      if (LJ_LIKELY(J->flags & JIT_F_OPT_LOOP) && ofs
+#if LJ_TARGET_ARM
+	  && (sz == 1 || sz == 4)
+#endif
+	  ) {
+	ptr = emitir(IRT(IR_ADD, IRT_PTR), ptr, lj_ir_kintp(J, ofs));
+	ofs = 0;
+      }
+#endif
+      idx = emitir(IRT(IR_MUL, IRT_INTP), idx, lj_ir_kintp(J, sz));
+      ptr = emitir(IRT(IR_ADD, IRT_PTR), idx, ptr);
+    }
+  } else if (tref_iscdata(idx)) {
+    GCcdata *cdk = cdataV(&rd->argv[1]);
+    CType *ctk = ctype_raw(cts, cdk->ctypeid);
+    IRType t = crec_ct2irt(cts, ctk);
+    if (ctype_ispointer(ct->info) && t >= IRT_I8 && t <= IRT_U64) {
+      if (ctk->size == 8) {
+	idx = emitir(IRT(IR_FLOAD, t), idx, IRFL_CDATA_INT64);
+      } else if (ctk->size == 4) {
+	idx = emitir(IRT(IR_FLOAD, t), idx, IRFL_CDATA_INT);
+      } else {
+	idx = emitir(IRT(IR_ADD, IRT_PTR), idx,
+		     lj_ir_kintp(J, sizeof(GCcdata)));
+	idx = emitir(IRT(IR_XLOAD, t), idx, 0);
+      }
+      if (LJ_64 && ctk->size < sizeof(intptr_t) && !(ctk->info & CTF_UNSIGNED))
+	idx = emitconv(idx, IRT_INTP, IRT_INT, IRCONV_SEXT);
+      if (!LJ_64 && ctk->size > sizeof(intptr_t)) {
+	idx = emitconv(idx, IRT_INTP, t, 0);
+	lj_needsplit(J);
+      }
+      goto integer_key;
+    }
+  } else if (tref_isstr(idx)) {
+    GCstr *name = strV(&rd->argv[1]);
+    if (cd && cd->ctypeid == CTID_CTYPEID)
+      ct = ctype_raw(cts, crec_constructor(J, cd, ptr));
+    if (ctype_isstruct(ct->info)) {
+      CTSize fofs;
+      CType *fct;
+      fct = lj_ctype_getfield(cts, ct, name, &fofs);
+      if (fct) {
+	ofs += (ptrdiff_t)fofs;
+	/* Always specialize to the field name. */
+	emitir(IRTG(IR_EQ, IRT_STR), idx, lj_ir_kstr(J, name));
+	if (ctype_isconstval(fct->info)) {
+	  if (fct->size >= 0x80000000u &&
+	      (ctype_child(cts, fct)->info & CTF_UNSIGNED)) {
+	    J->base[0] = lj_ir_knum(J, (lua_Number)(uint32_t)fct->size);
+	    return;
+	  }
+	  J->base[0] = lj_ir_kint(J, (int32_t)fct->size);
+	  return;  /* Interpreter will throw for newindex. */
+	} else if (ctype_isbitfield(fct->info)) {
+	  if (ofs)
+	    ptr = emitir(IRT(IR_ADD, IRT_PTR), ptr, lj_ir_kintp(J, ofs));
+	  crec_index_bf(J, rd, ptr, fct->info);
+	  return;
+	} else {
+	  lj_assertJ(ctype_isfield(fct->info), "field expected");
+	  sid = ctype_cid(fct->info);
+	}
+      }
+    } else if (ctype_iscomplex(ct->info)) {
+      if (name->len == 2 &&
+	  ((strdata(name)[0] == 'r' && strdata(name)[1] == 'e') ||
+	   (strdata(name)[0] == 'i' && strdata(name)[1] == 'm'))) {
+	/* Always specialize to the field name. */
+	emitir(IRTG(IR_EQ, IRT_STR), idx, lj_ir_kstr(J, name));
+	if (strdata(name)[0] == 'i') ofs += (ct->size >> 1);
+	sid = ctype_cid(ct->info);
+      }
+    }
+  }
+  if (!sid) {
+    if (ctype_isptr(ct->info)) {  /* Automatically perform '->'. */
+      CType *cct = ctype_rawchild(cts, ct);
+      if (ctype_isstruct(cct->info)) {
+	ct = cct;
+	cd = NULL;
+	if (tref_isstr(idx)) goto again;
+      }
+    }
+    crec_index_meta(J, cts, ct, rd);
+    return;
+  }
+
+  if (ofs)
+    ptr = emitir(IRT(IR_ADD, IRT_PTR), ptr, lj_ir_kintp(J, ofs));
+
+  /* Resolve reference for field. */
+  ct = ctype_get(cts, sid);
+  if (ctype_isref(ct->info)) {
+    ptr = emitir(IRT(IR_XLOAD, IRT_PTR), ptr, 0);
+    sid = ctype_cid(ct->info);
+    ct = ctype_get(cts, sid);
+  }
+
+  while (ctype_isattrib(ct->info))
+    ct = ctype_child(cts, ct);  /* Skip attributes. */
+
+  if (rd->data == 0) {  /* __index metamethod. */
+    J->base[0] = crec_tv_ct(J, ct, sid, ptr);
+  } else {  /* __newindex metamethod. */
+    rd->nres = 0;
+    J->needsnap = 1;
+    crec_ct_tv(J, ct, ptr, J->base[2], &rd->argv[2]);
+  }
+}
+
+/* Record setting a finalizer. */
+static void crec_finalizer(jit_State *J, TRef trcd, TRef trfin, cTValue *fin)
+{
+  if (tvisgcv(fin)) {
+    if (!trfin) trfin = lj_ir_kptr(J, gcval(fin));
+  } else if (tvisnil(fin)) {
+    trfin = lj_ir_kptr(J, NULL);
+  } else {
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  }
+  lj_ir_call(J, IRCALL_lj_cdata_setfin, trcd,
+	     trfin, lj_ir_kint(J, (int32_t)itype(fin)));
+  J->needsnap = 1;
+}
+
+/* Record cdata allocation. */
+static void crec_alloc(jit_State *J, RecordFFData *rd, CTypeID id)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  CTSize sz;
+  CTInfo info = lj_ctype_info(cts, id, &sz);
+  CType *d = ctype_raw(cts, id);
+  TRef trcd, trid = lj_ir_kint(J, id);
+  cTValue *fin;
+  /* Use special instruction to box pointer or 32/64 bit integer. */
+  if (ctype_isptr(info) || (ctype_isinteger(info) && (sz == 4 || sz == 8))) {
+    TRef sp = J->base[1] ? crec_ct_tv(J, d, 0, J->base[1], &rd->argv[1]) :
+	      ctype_isptr(info) ? lj_ir_kptr(J, NULL) :
+	      sz == 4 ? lj_ir_kint(J, 0) :
+	      (lj_needsplit(J), lj_ir_kint64(J, 0));
+    J->base[0] = emitir(IRTG(IR_CNEWI, IRT_CDATA), trid, sp);
+    return;
+  } else {
+    TRef trsz = TREF_NIL;
+    if ((info & CTF_VLA)) {  /* Calculate VLA/VLS size at runtime. */
+      CTSize sz0, sz1;
+      if (!J->base[1] || J->base[2])
+	lj_trace_err(J, LJ_TRERR_NYICONV);  /* NYI: init VLA/VLS. */
+      trsz = crec_ct_tv(J, ctype_get(cts, CTID_INT32), 0,
+			J->base[1], &rd->argv[1]);
+      sz0 = lj_ctype_vlsize(cts, d, 0);
+      sz1 = lj_ctype_vlsize(cts, d, 1);
+      trsz = emitir(IRTGI(IR_MULOV), trsz, lj_ir_kint(J, (int32_t)(sz1-sz0)));
+      trsz = emitir(IRTGI(IR_ADDOV), trsz, lj_ir_kint(J, (int32_t)sz0));
+      J->base[1] = 0;  /* Simplify logic below. */
+    } else if (ctype_align(info) > CT_MEMALIGN) {
+      trsz = lj_ir_kint(J, sz);
+    }
+    trcd = emitir(IRTG(IR_CNEW, IRT_CDATA), trid, trsz);
+    if (sz > 128 || (info & CTF_VLA)) {
+      TRef dp;
+      CTSize align;
+    special:  /* Only handle bulk zero-fill for large/VLA/VLS types. */
+      if (J->base[1])
+	lj_trace_err(J, LJ_TRERR_NYICONV);  /* NYI: init large/VLA/VLS types. */
+      dp = emitir(IRT(IR_ADD, IRT_PTR), trcd, lj_ir_kintp(J, sizeof(GCcdata)));
+      if (trsz == TREF_NIL) trsz = lj_ir_kint(J, sz);
+      align = ctype_align(info);
+      if (align < CT_MEMALIGN) align = CT_MEMALIGN;
+      crec_fill(J, dp, trsz, lj_ir_kint(J, 0), (1u << align));
+    } else if (J->base[1] && !J->base[2] &&
+	!lj_cconv_multi_init(cts, d, &rd->argv[1])) {
+      goto single_init;
+    } else if (ctype_isarray(d->info)) {
+      CType *dc = ctype_rawchild(cts, d);  /* Array element type. */
+      CTSize ofs, esize = dc->size;
+      TRef sp = 0;
+      TValue tv;
+      TValue *sval = &tv;
+      MSize i;
+      tv.u64 = 0;
+      if (!(ctype_isnum(dc->info) || ctype_isptr(dc->info)) ||
+	  esize * CREC_FILL_MAXUNROLL < sz)
+	goto special;
+      for (i = 1, ofs = 0; ofs < sz; ofs += esize) {
+	TRef dp = emitir(IRT(IR_ADD, IRT_PTR), trcd,
+			 lj_ir_kintp(J, ofs + sizeof(GCcdata)));
+	if (J->base[i]) {
+	  sp = J->base[i];
+	  sval = &rd->argv[i];
+	  i++;
+	} else if (i != 2) {
+	  sp = ctype_isnum(dc->info) ? lj_ir_kint(J, 0) : TREF_NIL;
+	}
+	crec_ct_tv(J, dc, dp, sp, sval);
+      }
+    } else if (ctype_isstruct(d->info)) {
+      CTypeID fid;
+      MSize i = 1;
+      if (!J->base[1]) {  /* Handle zero-fill of struct-of-NYI. */
+	fid = d->sib;
+	while (fid) {
+	  CType *df = ctype_get(cts, fid);
+	  fid = df->sib;
+	  if (ctype_isfield(df->info)) {
+	    CType *dc;
+	    if (!gcref(df->name)) continue;  /* Ignore unnamed fields. */
+	    dc = ctype_rawchild(cts, df);  /* Field type. */
+	    if (!(ctype_isnum(dc->info) || ctype_isptr(dc->info) ||
+		  ctype_isenum(dc->info)))
+	      goto special;
+	  } else if (!ctype_isconstval(df->info)) {
+	    goto special;
+	  }
+	}
+      }
+      fid = d->sib;
+      while (fid) {
+	CType *df = ctype_get(cts, fid);
+	fid = df->sib;
+	if (ctype_isfield(df->info)) {
+	  CType *dc;
+	  TRef sp, dp;
+	  TValue tv;
+	  TValue *sval = &tv;
+	  setintV(&tv, 0);
+	  if (!gcref(df->name)) continue;  /* Ignore unnamed fields. */
+	  dc = ctype_rawchild(cts, df);  /* Field type. */
+	  if (!(ctype_isnum(dc->info) || ctype_isptr(dc->info) ||
+		ctype_isenum(dc->info)))
+	    lj_trace_err(J, LJ_TRERR_NYICONV);  /* NYI: init aggregates. */
+	  if (J->base[i]) {
+	    sp = J->base[i];
+	    sval = &rd->argv[i];
+	    i++;
+	  } else {
+	    sp = ctype_isptr(dc->info) ? TREF_NIL : lj_ir_kint(J, 0);
+	  }
+	  dp = emitir(IRT(IR_ADD, IRT_PTR), trcd,
+		      lj_ir_kintp(J, df->size + sizeof(GCcdata)));
+	  crec_ct_tv(J, dc, dp, sp, sval);
+	  if ((d->info & CTF_UNION)) {
+	    if (d->size != dc->size)  /* NYI: partial init of union. */
+	      lj_trace_err(J, LJ_TRERR_NYICONV);
+	    break;
+	  }
+	} else if (!ctype_isconstval(df->info)) {
+	  /* NYI: init bitfields and sub-structures. */
+	  lj_trace_err(J, LJ_TRERR_NYICONV);
+	}
+      }
+    } else {
+      TRef dp;
+    single_init:
+      dp = emitir(IRT(IR_ADD, IRT_PTR), trcd, lj_ir_kintp(J, sizeof(GCcdata)));
+      if (J->base[1]) {
+	crec_ct_tv(J, d, dp, J->base[1], &rd->argv[1]);
+      } else {
+	TValue tv;
+	tv.u64 = 0;
+	crec_ct_tv(J, d, dp, lj_ir_kint(J, 0), &tv);
+      }
+    }
+  }
+  J->base[0] = trcd;
+  /* Handle __gc metamethod. */
+  fin = lj_ctype_meta(cts, id, MM_gc);
+  if (fin)
+    crec_finalizer(J, trcd, 0, fin);
+}
+
+/* Record argument conversions. */
+static TRef crec_call_args(jit_State *J, RecordFFData *rd,
+			   CTState *cts, CType *ct)
+{
+  TRef args[CCI_NARGS_MAX];
+  CTypeID fid;
+  MSize i, n;
+  TRef tr, *base;
+  cTValue *o;
+#if LJ_TARGET_X86
+#if LJ_ABI_WIN
+  TRef *arg0 = NULL, *arg1 = NULL;
+#endif
+  int ngpr = 0;
+  if (ctype_cconv(ct->info) == CTCC_THISCALL)
+    ngpr = 1;
+  else if (ctype_cconv(ct->info) == CTCC_FASTCALL)
+    ngpr = 2;
+#endif
+
+  /* Skip initial attributes. */
+  fid = ct->sib;
+  while (fid) {
+    CType *ctf = ctype_get(cts, fid);
+    if (!ctype_isattrib(ctf->info)) break;
+    fid = ctf->sib;
+  }
+  args[0] = TREF_NIL;
+  for (n = 0, base = J->base+1, o = rd->argv+1; *base; n++, base++, o++) {
+    CTypeID did;
+    CType *d;
+
+    if (n >= CCI_NARGS_MAX)
+      lj_trace_err(J, LJ_TRERR_NYICALL);
+
+    if (fid) {  /* Get argument type from field. */
+      CType *ctf = ctype_get(cts, fid);
+      fid = ctf->sib;
+      lj_assertJ(ctype_isfield(ctf->info), "field expected");
+      did = ctype_cid(ctf->info);
+    } else {
+      if (!(ct->info & CTF_VARARG))
+	lj_trace_err(J, LJ_TRERR_NYICALL);  /* Too many arguments. */
+      did = lj_ccall_ctid_vararg(cts, o);  /* Infer vararg type. */
+    }
+    d = ctype_raw(cts, did);
+    if (!(ctype_isnum(d->info) || ctype_isptr(d->info) ||
+	  ctype_isenum(d->info)))
+      lj_trace_err(J, LJ_TRERR_NYICALL);
+    tr = crec_ct_tv(J, d, 0, *base, o);
+    if (ctype_isinteger_or_bool(d->info)) {
+      if (d->size < 4) {
+	if ((d->info & CTF_UNSIGNED))
+	  tr = emitconv(tr, IRT_INT, d->size==1 ? IRT_U8 : IRT_U16, 0);
+	else
+	  tr = emitconv(tr, IRT_INT, d->size==1 ? IRT_I8 : IRT_I16,IRCONV_SEXT);
+      }
+    } else if (LJ_SOFTFP32 && ctype_isfp(d->info) && d->size > 4) {
+      lj_needsplit(J);
+    }
+#if LJ_TARGET_X86
+    /* 64 bit args must not end up in registers for fastcall/thiscall. */
+#if LJ_ABI_WIN
+    if (!ctype_isfp(d->info)) {
+      /* Sigh, the Windows/x86 ABI allows reordering across 64 bit args. */
+      if (tref_typerange(tr, IRT_I64, IRT_U64)) {
+	if (ngpr) {
+	  arg0 = &args[n]; args[n++] = TREF_NIL; ngpr--;
+	  if (ngpr) {
+	    arg1 = &args[n]; args[n++] = TREF_NIL; ngpr--;
+	  }
+	}
+      } else {
+	if (arg0) { *arg0 = tr; arg0 = NULL; n--; continue; }
+	if (arg1) { *arg1 = tr; arg1 = NULL; n--; continue; }
+	if (ngpr) ngpr--;
+      }
+    }
+#else
+    if (!ctype_isfp(d->info) && ngpr) {
+      if (tref_typerange(tr, IRT_I64, IRT_U64)) {
+	/* No reordering for other x86 ABIs. Simply add alignment args. */
+	do { args[n++] = TREF_NIL; } while (--ngpr);
+      } else {
+	ngpr--;
+      }
+    }
+#endif
+#endif
+    args[n] = tr;
+  }
+  tr = args[0];
+  for (i = 1; i < n; i++)
+    tr = emitir(IRT(IR_CARG, IRT_NIL), tr, args[i]);
+  return tr;
+}
+
+/* Create a snapshot for the caller, simulating a 'false' return value. */
+static void crec_snap_caller(jit_State *J)
+{
+  lua_State *L = J->L;
+  TValue *base = L->base, *top = L->top;
+  const BCIns *pc = J->pc;
+  TRef ftr = J->base[-1-LJ_FR2];
+  ptrdiff_t delta;
+  if (!frame_islua(base-1) || J->framedepth <= 0)
+    lj_trace_err(J, LJ_TRERR_NYICALL);
+  J->pc = frame_pc(base-1); delta = 1+LJ_FR2+bc_a(J->pc[-1]);
+  L->top = base; L->base = base - delta;
+  J->base[-1-LJ_FR2] = TREF_FALSE;
+  J->base -= delta; J->baseslot -= (BCReg)delta;
+  J->maxslot = (BCReg)delta-LJ_FR2; J->framedepth--;
+  lj_snap_add(J);
+  L->base = base; L->top = top;
+  J->framedepth++; J->maxslot = 1;
+  J->base += delta; J->baseslot += (BCReg)delta;
+  J->base[-1-LJ_FR2] = ftr; J->pc = pc;
+}
+
+/* Record function call. */
+static int crec_call(jit_State *J, RecordFFData *rd, GCcdata *cd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  CType *ct = ctype_raw(cts, cd->ctypeid);
+  IRType tp = IRT_PTR;
+  if (ctype_isptr(ct->info)) {
+    tp = (LJ_64 && ct->size == 8) ? IRT_P64 : IRT_P32;
+    ct = ctype_rawchild(cts, ct);
+  }
+  if (ctype_isfunc(ct->info)) {
+    TRef func = emitir(IRT(IR_FLOAD, tp), J->base[0], IRFL_CDATA_PTR);
+    CType *ctr = ctype_rawchild(cts, ct);
+    IRType t = crec_ct2irt(cts, ctr);
+    TRef tr;
+    TValue tv;
+    /* Check for blacklisted C functions that might call a callback. */
+    tv.u64 = ((uintptr_t)cdata_getptr(cdataptr(cd), (LJ_64 && tp == IRT_P64) ? 8 : 4) >> 2) | U64x(800000000, 00000000);
+    if (tvistrue(lj_tab_get(J->L, cts->miscmap, &tv)))
+      lj_trace_err(J, LJ_TRERR_BLACKL);
+    if (ctype_isvoid(ctr->info)) {
+      t = IRT_NIL;
+      rd->nres = 0;
+    } else if (!(ctype_isnum(ctr->info) || ctype_isptr(ctr->info) ||
+		 ctype_isenum(ctr->info)) || t == IRT_CDATA) {
+      lj_trace_err(J, LJ_TRERR_NYICALL);
+    }
+    if ((ct->info & CTF_VARARG)
+#if LJ_TARGET_X86
+	|| ctype_cconv(ct->info) != CTCC_CDECL
+#endif
+	)
+      func = emitir(IRT(IR_CARG, IRT_NIL), func,
+		    lj_ir_kint(J, ctype_typeid(cts, ct)));
+    tr = emitir(IRT(IR_CALLXS, t), crec_call_args(J, rd, cts, ct), func);
+    if (ctype_isbool(ctr->info)) {
+      if (frame_islua(J->L->base-1) && bc_b(frame_pc(J->L->base-1)[-1]) == 1) {
+	/* Don't check result if ignored. */
+	tr = TREF_NIL;
+      } else {
+	crec_snap_caller(J);
+#if LJ_TARGET_X86ORX64
+	/* Note: only the x86/x64 backend supports U8 and only for EQ(tr, 0). */
+	lj_ir_set(J, IRTG(IR_NE, IRT_U8), tr, lj_ir_kint(J, 0));
+#else
+	lj_ir_set(J, IRTGI(IR_NE), tr, lj_ir_kint(J, 0));
+#endif
+	J->postproc = LJ_POST_FIXGUARDSNAP;
+	tr = TREF_TRUE;
+      }
+    } else if (t == IRT_PTR || (LJ_64 && t == IRT_P32) ||
+	       t == IRT_I64 || t == IRT_U64 || ctype_isenum(ctr->info)) {
+      TRef trid = lj_ir_kint(J, ctype_cid(ct->info));
+      tr = emitir(IRTG(IR_CNEWI, IRT_CDATA), trid, tr);
+      if (t == IRT_I64 || t == IRT_U64) lj_needsplit(J);
+    } else if (t == IRT_FLOAT || t == IRT_U32) {
+      tr = emitconv(tr, IRT_NUM, t, 0);
+    } else if (t == IRT_I8 || t == IRT_I16) {
+      tr = emitconv(tr, IRT_INT, t, IRCONV_SEXT);
+    } else if (t == IRT_U8 || t == IRT_U16) {
+      tr = emitconv(tr, IRT_INT, t, 0);
+    }
+    J->base[0] = tr;
+    J->needsnap = 1;
+    return 1;
+  }
+  return 0;
+}
+
+void LJ_FASTCALL recff_cdata_call(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  GCcdata *cd = argv2cdata(J, J->base[0], &rd->argv[0]);
+  CTypeID id = cd->ctypeid;
+  CType *ct;
+  cTValue *tv;
+  MMS mm = MM_call;
+  if (id == CTID_CTYPEID) {
+    id = crec_constructor(J, cd, J->base[0]);
+    mm = MM_new;
+  } else if (crec_call(J, rd, cd)) {
+    return;
+  }
+  /* Record ctype __call/__new metamethod. */
+  ct = ctype_raw(cts, id);
+  tv = lj_ctype_meta(cts, ctype_isptr(ct->info) ? ctype_cid(ct->info) : id, mm);
+  if (tv) {
+    if (tvisfunc(tv)) {
+      crec_tailcall(J, rd, tv);
+      return;
+    }
+  } else if (mm == MM_new) {
+    crec_alloc(J, rd, id);
+    return;
+  }
+  /* No metamethod or NYI: non-function metamethods. */
+  lj_trace_err(J, LJ_TRERR_BADTYPE);
+}
+
+static TRef crec_arith_int64(jit_State *J, TRef *sp, CType **s, MMS mm)
+{
+  if (sp[0] && sp[1] && ctype_isnum(s[0]->info) && ctype_isnum(s[1]->info)) {
+    IRType dt;
+    CTypeID id;
+    TRef tr;
+    MSize i;
+    IROp op;
+    lj_needsplit(J);
+    if (((s[0]->info & CTF_UNSIGNED) && s[0]->size == 8) ||
+	((s[1]->info & CTF_UNSIGNED) && s[1]->size == 8)) {
+      dt = IRT_U64; id = CTID_UINT64;
+    } else {
+      dt = IRT_I64; id = CTID_INT64;
+      if (mm < MM_add &&
+	  !((s[0]->info | s[1]->info) & CTF_FP) &&
+	  s[0]->size == 4 && s[1]->size == 4) {  /* Try to narrow comparison. */
+	if (!((s[0]->info ^ s[1]->info) & CTF_UNSIGNED) ||
+	    (tref_isk(sp[1]) && IR(tref_ref(sp[1]))->i >= 0)) {
+	  dt = (s[0]->info & CTF_UNSIGNED) ? IRT_U32 : IRT_INT;
+	  goto comp;
+	} else if (tref_isk(sp[0]) && IR(tref_ref(sp[0]))->i >= 0) {
+	  dt = (s[1]->info & CTF_UNSIGNED) ? IRT_U32 : IRT_INT;
+	  goto comp;
+	}
+      }
+    }
+    for (i = 0; i < 2; i++) {
+      IRType st = tref_type(sp[i]);
+      if (st == IRT_NUM || st == IRT_FLOAT)
+	sp[i] = emitconv(sp[i], dt, st, IRCONV_ANY);
+      else if (!(st == IRT_I64 || st == IRT_U64))
+	sp[i] = emitconv(sp[i], dt, IRT_INT,
+			 (s[i]->info & CTF_UNSIGNED) ? 0 : IRCONV_SEXT);
+    }
+    if (mm < MM_add) {
+    comp:
+      /* Assume true comparison. Fixup and emit pending guard later. */
+      if (mm == MM_eq) {
+	op = IR_EQ;
+      } else {
+	op = mm == MM_lt ? IR_LT : IR_LE;
+	if (dt == IRT_U32 || dt == IRT_U64)
+	  op += (IR_ULT-IR_LT);
+      }
+      lj_ir_set(J, IRTG(op, dt), sp[0], sp[1]);
+      J->postproc = LJ_POST_FIXGUARD;
+      return TREF_TRUE;
+    } else {
+      tr = emitir(IRT(mm+(int)IR_ADD-(int)MM_add, dt), sp[0], sp[1]);
+    }
+    return emitir(IRTG(IR_CNEWI, IRT_CDATA), lj_ir_kint(J, id), tr);
+  }
+  return 0;
+}
+
+static TRef crec_arith_ptr(jit_State *J, TRef *sp, CType **s, MMS mm)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  CType *ctp = s[0];
+  if (!(sp[0] && sp[1])) return 0;
+  if (ctype_isptr(ctp->info) || ctype_isrefarray(ctp->info)) {
+    if ((mm == MM_sub || mm == MM_eq || mm == MM_lt || mm == MM_le) &&
+	(ctype_isptr(s[1]->info) || ctype_isrefarray(s[1]->info))) {
+      if (mm == MM_sub) {  /* Pointer difference. */
+	TRef tr;
+	CTSize sz = lj_ctype_size(cts, ctype_cid(ctp->info));
+	if (sz == 0 || (sz & (sz-1)) != 0)
+	  return 0;  /* NYI: integer division. */
+	tr = emitir(IRT(IR_SUB, IRT_INTP), sp[0], sp[1]);
+	tr = emitir(IRT(IR_BSAR, IRT_INTP), tr, lj_ir_kint(J, lj_fls(sz)));
+#if LJ_64
+	tr = emitconv(tr, IRT_NUM, IRT_INTP, 0);
+#endif
+	return tr;
+      } else {  /* Pointer comparison (unsigned). */
+	/* Assume true comparison. Fixup and emit pending guard later. */
+	IROp op = mm == MM_eq ? IR_EQ : mm == MM_lt ? IR_ULT : IR_ULE;
+	lj_ir_set(J, IRTG(op, IRT_PTR), sp[0], sp[1]);
+	J->postproc = LJ_POST_FIXGUARD;
+	return TREF_TRUE;
+      }
+    }
+    if (!((mm == MM_add || mm == MM_sub) && ctype_isnum(s[1]->info)))
+      return 0;
+  } else if (mm == MM_add && ctype_isnum(ctp->info) &&
+	     (ctype_isptr(s[1]->info) || ctype_isrefarray(s[1]->info))) {
+    TRef tr = sp[0]; sp[0] = sp[1]; sp[1] = tr;  /* Swap pointer and index. */
+    ctp = s[1];
+  } else {
+    return 0;
+  }
+  {
+    TRef tr = sp[1];
+    IRType t = tref_type(tr);
+    CTSize sz = lj_ctype_size(cts, ctype_cid(ctp->info));
+    CTypeID id;
+#if LJ_64
+    if (t == IRT_NUM || t == IRT_FLOAT)
+      tr = emitconv(tr, IRT_INTP, t, IRCONV_ANY);
+    else if (!(t == IRT_I64 || t == IRT_U64))
+      tr = emitconv(tr, IRT_INTP, IRT_INT,
+		    ((t - IRT_I8) & 1) ? 0 : IRCONV_SEXT);
+#else
+    if (!tref_typerange(sp[1], IRT_I8, IRT_U32)) {
+      tr = emitconv(tr, IRT_INTP, t,
+		    (t == IRT_NUM || t == IRT_FLOAT) ? IRCONV_ANY : 0);
+    }
+#endif
+    tr = emitir(IRT(IR_MUL, IRT_INTP), tr, lj_ir_kintp(J, sz));
+    tr = emitir(IRT(mm+(int)IR_ADD-(int)MM_add, IRT_PTR), sp[0], tr);
+    id = lj_ctype_intern(cts, CTINFO(CT_PTR, CTALIGN_PTR|ctype_cid(ctp->info)),
+			 CTSIZE_PTR);
+    return emitir(IRTG(IR_CNEWI, IRT_CDATA), lj_ir_kint(J, id), tr);
+  }
+}
+
+/* Record ctype arithmetic metamethods. */
+static TRef crec_arith_meta(jit_State *J, TRef *sp, CType **s, CTState *cts,
+			    RecordFFData *rd)
+{
+  cTValue *tv = NULL;
+  if (J->base[0]) {
+    if (tviscdata(&rd->argv[0])) {
+      CTypeID id = argv2cdata(J, J->base[0], &rd->argv[0])->ctypeid;
+      CType *ct = ctype_raw(cts, id);
+      if (ctype_isptr(ct->info)) id = ctype_cid(ct->info);
+      tv = lj_ctype_meta(cts, id, (MMS)rd->data);
+    }
+    if (!tv && J->base[1] && tviscdata(&rd->argv[1])) {
+      CTypeID id = argv2cdata(J, J->base[1], &rd->argv[1])->ctypeid;
+      CType *ct = ctype_raw(cts, id);
+      if (ctype_isptr(ct->info)) id = ctype_cid(ct->info);
+      tv = lj_ctype_meta(cts, id, (MMS)rd->data);
+    }
+  }
+  if (tv) {
+    if (tvisfunc(tv)) {
+      crec_tailcall(J, rd, tv);
+      return 0;
+    }  /* NYI: non-function metamethods. */
+  } else if ((MMS)rd->data == MM_eq) {  /* Fallback cdata pointer comparison. */
+    if (sp[0] && sp[1] && ctype_isnum(s[0]->info) == ctype_isnum(s[1]->info)) {
+      /* Assume true comparison. Fixup and emit pending guard later. */
+      lj_ir_set(J, IRTG(IR_EQ, IRT_PTR), sp[0], sp[1]);
+      J->postproc = LJ_POST_FIXGUARD;
+      return TREF_TRUE;
+    } else {
+      return TREF_FALSE;
+    }
+  }
+  lj_trace_err(J, LJ_TRERR_BADTYPE);
+  return 0;
+}
+
+void LJ_FASTCALL recff_cdata_arith(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  TRef sp[2];
+  CType *s[2];
+  MSize i;
+  for (i = 0; i < 2; i++) {
+    TRef tr = J->base[i];
+    CType *ct = ctype_get(cts, CTID_DOUBLE);
+    if (!tr) {
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+    } else if (tref_iscdata(tr)) {
+      CTypeID id = argv2cdata(J, tr, &rd->argv[i])->ctypeid;
+      IRType t;
+      ct = ctype_raw(cts, id);
+      t = crec_ct2irt(cts, ct);
+      if (ctype_isptr(ct->info)) {  /* Resolve pointer or reference. */
+	tr = emitir(IRT(IR_FLOAD, t), tr, IRFL_CDATA_PTR);
+	if (ctype_isref(ct->info)) {
+	  ct = ctype_rawchild(cts, ct);
+	  t = crec_ct2irt(cts, ct);
+	}
+      } else if (t == IRT_I64 || t == IRT_U64) {
+	tr = emitir(IRT(IR_FLOAD, t), tr, IRFL_CDATA_INT64);
+	lj_needsplit(J);
+	goto ok;
+      } else if (t == IRT_INT || t == IRT_U32) {
+	tr = emitir(IRT(IR_FLOAD, t), tr, IRFL_CDATA_INT);
+	if (ctype_isenum(ct->info)) ct = ctype_child(cts, ct);
+	goto ok;
+      } else if (ctype_isfunc(ct->info)) {
+	tr = emitir(IRT(IR_FLOAD, IRT_PTR), tr, IRFL_CDATA_PTR);
+	ct = ctype_get(cts,
+	  lj_ctype_intern(cts, CTINFO(CT_PTR, CTALIGN_PTR|id), CTSIZE_PTR));
+	goto ok;
+      } else {
+	tr = emitir(IRT(IR_ADD, IRT_PTR), tr, lj_ir_kintp(J, sizeof(GCcdata)));
+      }
+      if (ctype_isenum(ct->info)) ct = ctype_child(cts, ct);
+      if (ctype_isnum(ct->info)) {
+	if (t == IRT_CDATA) {
+	  tr = 0;
+	} else {
+	  if (t == IRT_I64 || t == IRT_U64) lj_needsplit(J);
+	  tr = emitir(IRT(IR_XLOAD, t), tr, 0);
+	}
+      }
+    } else if (tref_isnil(tr)) {
+      tr = lj_ir_kptr(J, NULL);
+      ct = ctype_get(cts, CTID_P_VOID);
+    } else if (tref_isinteger(tr)) {
+      ct = ctype_get(cts, CTID_INT32);
+    } else if (tref_isstr(tr)) {
+      TRef tr2 = J->base[1-i];
+      CTypeID id = argv2cdata(J, tr2, &rd->argv[1-i])->ctypeid;
+      ct = ctype_raw(cts, id);
+      if (ctype_isenum(ct->info)) {  /* Match string against enum constant. */
+	GCstr *str = strV(&rd->argv[i]);
+	CTSize ofs;
+	CType *cct = lj_ctype_getfield(cts, ct, str, &ofs);
+	if (cct && ctype_isconstval(cct->info)) {
+	  /* Specialize to the name of the enum constant. */
+	  emitir(IRTG(IR_EQ, IRT_STR), tr, lj_ir_kstr(J, str));
+	  ct = ctype_child(cts, cct);
+	  tr = lj_ir_kint(J, (int32_t)ofs);
+	} else {  /* Interpreter will throw or return false. */
+	  ct = ctype_get(cts, CTID_P_VOID);
+	}
+      } else if (ctype_isptr(ct->info)) {
+	tr = emitir(IRT(IR_ADD, IRT_PTR), tr, lj_ir_kintp(J, sizeof(GCstr)));
+      } else {
+	ct = ctype_get(cts, CTID_P_VOID);
+      }
+    } else if (!tref_isnum(tr)) {
+      tr = 0;
+      ct = ctype_get(cts, CTID_P_VOID);
+    }
+  ok:
+    s[i] = ct;
+    sp[i] = tr;
+  }
+  {
+    TRef tr;
+    MMS mm = (MMS)rd->data;
+    if ((mm == MM_len || mm == MM_concat ||
+	 (!(tr = crec_arith_int64(J, sp, s, mm)) &&
+	  !(tr = crec_arith_ptr(J, sp, s, mm)))) &&
+	!(tr = crec_arith_meta(J, sp, s, cts, rd)))
+      return;
+    J->base[0] = tr;
+    /* Fixup cdata comparisons, too. Avoids some cdata escapes. */
+    if (J->postproc == LJ_POST_FIXGUARD && frame_iscont(J->L->base-1) &&
+	!irt_isguard(J->guardemit)) {
+      const BCIns *pc = frame_contpc(J->L->base-1) - 1;
+      if (bc_op(*pc) <= BC_ISNEP) {
+	J2G(J)->tmptv.u64 = (uint64_t)(uintptr_t)pc;
+	J->postproc = LJ_POST_FIXCOMP;
+      }
+    }
+  }
+}
+
+/* -- C library namespace metamethods ------------------------------------- */
+
+void LJ_FASTCALL recff_clib_index(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  if (tref_isudata(J->base[0]) && tref_isstr(J->base[1]) &&
+      udataV(&rd->argv[0])->udtype == UDTYPE_FFI_CLIB) {
+    CLibrary *cl = (CLibrary *)uddata(udataV(&rd->argv[0]));
+    GCstr *name = strV(&rd->argv[1]);
+    CType *ct;
+    CTypeID id = lj_ctype_getname(cts, &ct, name, CLNS_INDEX);
+    cTValue *tv = lj_tab_getstr(cl->cache, name);
+    rd->nres = rd->data;
+    if (id && tv && !tvisnil(tv)) {
+      /* Specialize to the symbol name and make the result a constant. */
+      emitir(IRTG(IR_EQ, IRT_STR), J->base[1], lj_ir_kstr(J, name));
+      if (ctype_isconstval(ct->info)) {
+	if (ct->size >= 0x80000000u &&
+	    (ctype_child(cts, ct)->info & CTF_UNSIGNED))
+	  J->base[0] = lj_ir_knum(J, (lua_Number)(uint32_t)ct->size);
+	else
+	  J->base[0] = lj_ir_kint(J, (int32_t)ct->size);
+      } else if (ctype_isextern(ct->info)) {
+	CTypeID sid = ctype_cid(ct->info);
+	void *sp = *(void **)cdataptr(cdataV(tv));
+	TRef ptr;
+	ct = ctype_raw(cts, sid);
+	if (LJ_64 && !checkptr32(sp))
+	  ptr = lj_ir_kintp(J, (uintptr_t)sp);
+	else
+	  ptr = lj_ir_kptr(J, sp);
+	if (rd->data) {
+	  J->base[0] = crec_tv_ct(J, ct, sid, ptr);
+	} else {
+	  J->needsnap = 1;
+	  crec_ct_tv(J, ct, ptr, J->base[2], &rd->argv[2]);
+	}
+      } else {
+	J->base[0] = lj_ir_kgc(J, obj2gco(cdataV(tv)), IRT_CDATA);
+      }
+    } else {
+      lj_trace_err(J, LJ_TRERR_NOCACHE);
+    }
+  }  /* else: interpreter will throw. */
+}
+
+/* -- FFI library functions ----------------------------------------------- */
+
+static TRef crec_toint(jit_State *J, CTState *cts, TRef sp, TValue *sval)
+{
+  return crec_ct_tv(J, ctype_get(cts, CTID_INT32), 0, sp, sval);
+}
+
+void LJ_FASTCALL recff_ffi_new(jit_State *J, RecordFFData *rd)
+{
+  crec_alloc(J, rd, argv2ctype(J, J->base[0], &rd->argv[0]));
+}
+
+void LJ_FASTCALL recff_ffi_errno(jit_State *J, RecordFFData *rd)
+{
+  UNUSED(rd);
+  if (J->base[0])
+    lj_trace_err(J, LJ_TRERR_NYICALL);
+  J->base[0] = lj_ir_call(J, IRCALL_lj_vm_errno);
+}
+
+void LJ_FASTCALL recff_ffi_string(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  TRef tr = J->base[0];
+  if (tr) {
+    TRef trlen = J->base[1];
+    if (!tref_isnil(trlen)) {
+      trlen = crec_toint(J, cts, trlen, &rd->argv[1]);
+      tr = crec_ct_tv(J, ctype_get(cts, CTID_P_CVOID), 0, tr, &rd->argv[0]);
+    } else {
+      tr = crec_ct_tv(J, ctype_get(cts, CTID_P_CCHAR), 0, tr, &rd->argv[0]);
+      trlen = lj_ir_call(J, IRCALL_strlen, tr);
+    }
+    J->base[0] = emitir(IRT(IR_XSNEW, IRT_STR), tr, trlen);
+  }  /* else: interpreter will throw. */
+}
+
+void LJ_FASTCALL recff_ffi_copy(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  TRef trdst = J->base[0], trsrc = J->base[1], trlen = J->base[2];
+  if (trdst && trsrc && (trlen || tref_isstr(trsrc))) {
+    trdst = crec_ct_tv(J, ctype_get(cts, CTID_P_VOID), 0, trdst, &rd->argv[0]);
+    trsrc = crec_ct_tv(J, ctype_get(cts, CTID_P_CVOID), 0, trsrc, &rd->argv[1]);
+    if (trlen) {
+      trlen = crec_toint(J, cts, trlen, &rd->argv[2]);
+    } else {
+      trlen = emitir(IRTI(IR_FLOAD), J->base[1], IRFL_STR_LEN);
+      trlen = emitir(IRTI(IR_ADD), trlen, lj_ir_kint(J, 1));
+    }
+    rd->nres = 0;
+    crec_copy(J, trdst, trsrc, trlen, NULL);
+  }  /* else: interpreter will throw. */
+}
+
+void LJ_FASTCALL recff_ffi_fill(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  TRef trdst = J->base[0], trlen = J->base[1], trfill = J->base[2];
+  if (trdst && trlen) {
+    CTSize step = 1;
+    if (tviscdata(&rd->argv[0])) {  /* Get alignment of original destination. */
+      CTSize sz;
+      CType *ct = ctype_raw(cts, cdataV(&rd->argv[0])->ctypeid);
+      if (ctype_isptr(ct->info))
+	ct = ctype_rawchild(cts, ct);
+      step = (1u<<ctype_align(lj_ctype_info(cts, ctype_typeid(cts, ct), &sz)));
+    }
+    trdst = crec_ct_tv(J, ctype_get(cts, CTID_P_VOID), 0, trdst, &rd->argv[0]);
+    trlen = crec_toint(J, cts, trlen, &rd->argv[1]);
+    if (trfill)
+      trfill = crec_toint(J, cts, trfill, &rd->argv[2]);
+    else
+      trfill = lj_ir_kint(J, 0);
+    rd->nres = 0;
+    crec_fill(J, trdst, trlen, trfill, step);
+  }  /* else: interpreter will throw. */
+}
+
+void LJ_FASTCALL recff_ffi_typeof(jit_State *J, RecordFFData *rd)
+{
+  if (tref_iscdata(J->base[0])) {
+    TRef trid = lj_ir_kint(J, argv2ctype(J, J->base[0], &rd->argv[0]));
+    J->base[0] = emitir(IRTG(IR_CNEWI, IRT_CDATA),
+			lj_ir_kint(J, CTID_CTYPEID), trid);
+  } else {
+    setfuncV(J->L, &J->errinfo, J->fn);
+    lj_trace_err_info(J, LJ_TRERR_NYIFFU);
+  }
+}
+
+void LJ_FASTCALL recff_ffi_istype(jit_State *J, RecordFFData *rd)
+{
+  argv2ctype(J, J->base[0], &rd->argv[0]);
+  if (tref_iscdata(J->base[1])) {
+    argv2ctype(J, J->base[1], &rd->argv[1]);
+    J->postproc = LJ_POST_FIXBOOL;
+    J->base[0] = TREF_TRUE;
+  } else {
+    J->base[0] = TREF_FALSE;
+  }
+}
+
+void LJ_FASTCALL recff_ffi_abi(jit_State *J, RecordFFData *rd)
+{
+  if (tref_isstr(J->base[0])) {
+    /* Specialize to the ABI string to make the boolean result a constant. */
+    emitir(IRTG(IR_EQ, IRT_STR), J->base[0], lj_ir_kstr(J, strV(&rd->argv[0])));
+    J->postproc = LJ_POST_FIXBOOL;
+    J->base[0] = TREF_TRUE;
+  } else {
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  }
+}
+
+/* Record ffi.sizeof(), ffi.alignof(), ffi.offsetof(). */
+void LJ_FASTCALL recff_ffi_xof(jit_State *J, RecordFFData *rd)
+{
+  CTypeID id = argv2ctype(J, J->base[0], &rd->argv[0]);
+  if (rd->data == FF_ffi_sizeof) {
+    CType *ct = lj_ctype_rawref(ctype_ctsG(J2G(J)), id);
+    if (ctype_isvltype(ct->info))
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+  } else if (rd->data == FF_ffi_offsetof) {  /* Specialize to the field name. */
+    if (!tref_isstr(J->base[1]))
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+    emitir(IRTG(IR_EQ, IRT_STR), J->base[1], lj_ir_kstr(J, strV(&rd->argv[1])));
+    rd->nres = 3;  /* Just in case. */
+  }
+  J->postproc = LJ_POST_FIXCONST;
+  J->base[0] = J->base[1] = J->base[2] = TREF_NIL;
+}
+
+void LJ_FASTCALL recff_ffi_gc(jit_State *J, RecordFFData *rd)
+{
+  argv2cdata(J, J->base[0], &rd->argv[0]);
+  if (!J->base[1])
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  crec_finalizer(J, J->base[0], J->base[1], &rd->argv[1]);
+}
+
+/* -- 64 bit bit.* library functions -------------------------------------- */
+
+/* Determine bit operation type from argument type. */
+static CTypeID crec_bit64_type(CTState *cts, cTValue *tv)
+{
+  if (tviscdata(tv)) {
+    CType *ct = lj_ctype_rawref(cts, cdataV(tv)->ctypeid);
+    if (ctype_isenum(ct->info)) ct = ctype_child(cts, ct);
+    if ((ct->info & (CTMASK_NUM|CTF_BOOL|CTF_FP|CTF_UNSIGNED)) ==
+	CTINFO(CT_NUM, CTF_UNSIGNED) && ct->size == 8)
+      return CTID_UINT64;  /* Use uint64_t, since it has the highest rank. */
+    return CTID_INT64;  /* Otherwise use int64_t. */
+  }
+  return 0;  /* Use regular 32 bit ops. */
+}
+
+void LJ_FASTCALL recff_bit64_tobit(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  TRef tr = crec_ct_tv(J, ctype_get(cts, CTID_INT64), 0,
+		       J->base[0], &rd->argv[0]);
+  if (!tref_isinteger(tr))
+    tr = emitconv(tr, IRT_INT, tref_type(tr), 0);
+  J->base[0] = tr;
+}
+
+int LJ_FASTCALL recff_bit64_unary(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  CTypeID id = crec_bit64_type(cts, &rd->argv[0]);
+  if (id) {
+    TRef tr = crec_ct_tv(J, ctype_get(cts, id), 0, J->base[0], &rd->argv[0]);
+    tr = emitir(IRT(rd->data, id-CTID_INT64+IRT_I64), tr, 0);
+    J->base[0] = emitir(IRTG(IR_CNEWI, IRT_CDATA), lj_ir_kint(J, id), tr);
+    return 1;
+  }
+  return 0;
+}
+
+int LJ_FASTCALL recff_bit64_nary(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  CTypeID id = 0;
+  MSize i;
+  for (i = 0; J->base[i] != 0; i++) {
+    CTypeID aid = crec_bit64_type(cts, &rd->argv[i]);
+    if (id < aid) id = aid;  /* Determine highest type rank of all arguments. */
+  }
+  if (id) {
+    CType *ct = ctype_get(cts, id);
+    uint32_t ot = IRT(rd->data, id-CTID_INT64+IRT_I64);
+    TRef tr = crec_ct_tv(J, ct, 0, J->base[0], &rd->argv[0]);
+    for (i = 1; J->base[i] != 0; i++) {
+      TRef tr2 = crec_ct_tv(J, ct, 0, J->base[i], &rd->argv[i]);
+      tr = emitir(ot, tr, tr2);
+    }
+    J->base[0] = emitir(IRTG(IR_CNEWI, IRT_CDATA), lj_ir_kint(J, id), tr);
+    return 1;
+  }
+  return 0;
+}
+
+int LJ_FASTCALL recff_bit64_shift(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  CTypeID id;
+  TRef tsh = 0;
+  if (J->base[0] && tref_iscdata(J->base[1])) {
+    tsh = crec_ct_tv(J, ctype_get(cts, CTID_INT64), 0,
+		     J->base[1], &rd->argv[1]);
+    if (!tref_isinteger(tsh))
+      tsh = emitconv(tsh, IRT_INT, tref_type(tsh), 0);
+    J->base[1] = tsh;
+  }
+  id = crec_bit64_type(cts, &rd->argv[0]);
+  if (id) {
+    TRef tr = crec_ct_tv(J, ctype_get(cts, id), 0, J->base[0], &rd->argv[0]);
+    uint32_t op = rd->data;
+    if (!tsh) tsh = lj_opt_narrow_tobit(J, J->base[1]);
+    if (!(op < IR_BROL ? LJ_TARGET_MASKSHIFT : LJ_TARGET_MASKROT) &&
+	!tref_isk(tsh))
+      tsh = emitir(IRTI(IR_BAND), tsh, lj_ir_kint(J, 63));
+#ifdef LJ_TARGET_UNIFYROT
+      if (op == (LJ_TARGET_UNIFYROT == 1 ? IR_BROR : IR_BROL)) {
+	op = LJ_TARGET_UNIFYROT == 1 ? IR_BROL : IR_BROR;
+	tsh = emitir(IRTI(IR_NEG), tsh, tsh);
+      }
+#endif
+    tr = emitir(IRT(op, id-CTID_INT64+IRT_I64), tr, tsh);
+    J->base[0] = emitir(IRTG(IR_CNEWI, IRT_CDATA), lj_ir_kint(J, id), tr);
+    return 1;
+  }
+  return 0;
+}
+
+TRef recff_bit64_tohex(jit_State *J, RecordFFData *rd, TRef hdr)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  CTypeID id = crec_bit64_type(cts, &rd->argv[0]);
+  TRef tr, trsf = J->base[1];
+  SFormat sf = (STRFMT_UINT|STRFMT_T_HEX);
+  int32_t n;
+  if (trsf) {
+    CTypeID id2 = 0;
+    n = (int32_t)lj_carith_check64(J->L, 2, &id2);
+    if (id2)
+      trsf = crec_ct_tv(J, ctype_get(cts, CTID_INT32), 0, trsf, &rd->argv[1]);
+    else
+      trsf = lj_opt_narrow_tobit(J, trsf);
+    emitir(IRTGI(IR_EQ), trsf, lj_ir_kint(J, n));  /* Specialize to n. */
+  } else {
+    n = id ? 16 : 8;
+  }
+  if (n < 0) { n = -n; sf |= STRFMT_F_UPPER; }
+  sf |= ((SFormat)((n+1)&255) << STRFMT_SH_PREC);
+  if (id) {
+    tr = crec_ct_tv(J, ctype_get(cts, id), 0, J->base[0], &rd->argv[0]);
+    if (n < 16)
+      tr = emitir(IRT(IR_BAND, IRT_U64), tr,
+		  lj_ir_kint64(J, ((uint64_t)1 << 4*n)-1));
+  } else {
+    tr = lj_opt_narrow_tobit(J, J->base[0]);
+    if (n < 8)
+      tr = emitir(IRTI(IR_BAND), tr, lj_ir_kint(J, (int32_t)((1u << 4*n)-1)));
+    tr = emitconv(tr, IRT_U64, IRT_INT, 0);  /* No sign-extension. */
+    lj_needsplit(J);
+  }
+  return lj_ir_call(J, IRCALL_lj_strfmt_putfxint, hdr, lj_ir_kint(J, sf), tr);
+}
+
+/* -- Miscellaneous library functions ------------------------------------- */
+
+void LJ_FASTCALL lj_crecord_tonumber(jit_State *J, RecordFFData *rd)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  CType *d, *ct = lj_ctype_rawref(cts, cdataV(&rd->argv[0])->ctypeid);
+  if (ctype_isenum(ct->info)) ct = ctype_child(cts, ct);
+  if (ctype_isnum(ct->info) || ctype_iscomplex(ct->info)) {
+    if (ctype_isinteger_or_bool(ct->info) && ct->size <= 4 &&
+	!(ct->size == 4 && (ct->info & CTF_UNSIGNED)))
+      d = ctype_get(cts, CTID_INT32);
+    else
+      d = ctype_get(cts, CTID_DOUBLE);
+    J->base[0] = crec_ct_tv(J, d, 0, J->base[0], &rd->argv[0]);
+  } else {
+    /* Specialize to the ctype that couldn't be converted. */
+    argv2cdata(J, J->base[0], &rd->argv[0]);
+    J->base[0] = TREF_NIL;
+  }
+}
+
+TRef lj_crecord_loadiu64(jit_State *J, TRef tr, cTValue *o)
+{
+  CTypeID id = argv2cdata(J, tr, o)->ctypeid;
+  if (!(id == CTID_INT64 || id == CTID_UINT64))
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  lj_needsplit(J);
+  return emitir(IRT(IR_FLOAD, id == CTID_INT64 ? IRT_I64 : IRT_U64), tr,
+		IRFL_CDATA_INT64);
+}
+
+#if LJ_HASBUFFER
+TRef lj_crecord_topcvoid(jit_State *J, TRef tr, cTValue *o)
+{
+  CTState *cts = ctype_ctsG(J2G(J));
+  if (!tref_iscdata(tr)) lj_trace_err(J, LJ_TRERR_BADTYPE);
+  return crec_ct_tv(J, ctype_get(cts, CTID_P_CVOID), 0, tr, o);
+}
+
+TRef lj_crecord_topuint8(jit_State *J, TRef tr)
+{
+  return emitir(IRTG(IR_CNEWI, IRT_CDATA), lj_ir_kint(J, CTID_P_UINT8), tr);
+}
+#endif
+
+#undef IR
+#undef emitir
+#undef emitconv
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_crecord.h b/libs/luajit-cmake/luajit/src/lj_crecord.h
new file mode 100644
index 0000000..2c8cf05
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_crecord.h
@@ -0,0 +1,43 @@
+/*
+** Trace recorder for C data operations.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CRECORD_H
+#define _LJ_CRECORD_H
+
+#include "lj_obj.h"
+#include "lj_jit.h"
+#include "lj_ffrecord.h"
+
+#if LJ_HASJIT && LJ_HASFFI
+LJ_FUNC void LJ_FASTCALL recff_cdata_index(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_cdata_call(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_cdata_arith(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_clib_index(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_new(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_errno(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_string(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_copy(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_fill(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_typeof(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_istype(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_abi(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_xof(jit_State *J, RecordFFData *rd);
+LJ_FUNC void LJ_FASTCALL recff_ffi_gc(jit_State *J, RecordFFData *rd);
+
+LJ_FUNC void LJ_FASTCALL recff_bit64_tobit(jit_State *J, RecordFFData *rd);
+LJ_FUNC int LJ_FASTCALL recff_bit64_unary(jit_State *J, RecordFFData *rd);
+LJ_FUNC int LJ_FASTCALL recff_bit64_nary(jit_State *J, RecordFFData *rd);
+LJ_FUNC int LJ_FASTCALL recff_bit64_shift(jit_State *J, RecordFFData *rd);
+LJ_FUNC TRef recff_bit64_tohex(jit_State *J, RecordFFData *rd, TRef hdr);
+
+LJ_FUNC void LJ_FASTCALL lj_crecord_tonumber(jit_State *J, RecordFFData *rd);
+LJ_FUNC TRef lj_crecord_loadiu64(jit_State *J, TRef tr, cTValue *o);
+#if LJ_HASBUFFER
+LJ_FUNC TRef lj_crecord_topcvoid(jit_State *J, TRef tr, cTValue *o);
+LJ_FUNC TRef lj_crecord_topuint8(jit_State *J, TRef tr);
+#endif
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_ctype.c b/libs/luajit-cmake/luajit/src/lj_ctype.c
new file mode 100644
index 0000000..204be03
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_ctype.c
@@ -0,0 +1,646 @@
+/*
+** C type management.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include "lj_obj.h"
+
+#if LJ_HASFFI
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_strfmt.h"
+#include "lj_ctype.h"
+#include "lj_ccallback.h"
+#include "lj_buf.h"
+
+/* -- C type definitions -------------------------------------------------- */
+
+/* Predefined typedefs. */
+#define CTTDDEF(_) \
+  /* Vararg handling. */ \
+  _("va_list",			P_VOID) \
+  _("__builtin_va_list",	P_VOID) \
+  _("__gnuc_va_list",		P_VOID) \
+  /* From stddef.h. */ \
+  _("ptrdiff_t",		INT_PSZ) \
+  _("size_t",			UINT_PSZ) \
+  _("wchar_t",			WCHAR) \
+  /* Subset of stdint.h. */ \
+  _("int8_t",			INT8) \
+  _("int16_t",			INT16) \
+  _("int32_t",			INT32) \
+  _("int64_t",			INT64) \
+  _("uint8_t",			UINT8) \
+  _("uint16_t",			UINT16) \
+  _("uint32_t",			UINT32) \
+  _("uint64_t",			UINT64) \
+  _("intptr_t",			INT_PSZ) \
+  _("uintptr_t",		UINT_PSZ) \
+  /* From POSIX. */ \
+  _("ssize_t",			INT_PSZ) \
+  /* End of typedef list. */
+
+/* Keywords (only the ones we actually care for). */
+#define CTKWDEF(_) \
+  /* Type specifiers. */ \
+  _("void",		-1,	CTOK_VOID) \
+  _("_Bool",		0,	CTOK_BOOL) \
+  _("bool",		1,	CTOK_BOOL) \
+  _("char",		1,	CTOK_CHAR) \
+  _("int",		4,	CTOK_INT) \
+  _("__int8",		1,	CTOK_INT) \
+  _("__int16",		2,	CTOK_INT) \
+  _("__int32",		4,	CTOK_INT) \
+  _("__int64",		8,	CTOK_INT) \
+  _("float",		4,	CTOK_FP) \
+  _("double",		8,	CTOK_FP) \
+  _("long",		0,	CTOK_LONG) \
+  _("short",		0,	CTOK_SHORT) \
+  _("_Complex",		0,	CTOK_COMPLEX) \
+  _("complex",		0,	CTOK_COMPLEX) \
+  _("__complex",	0,	CTOK_COMPLEX) \
+  _("__complex__",	0,	CTOK_COMPLEX) \
+  _("signed",		0,	CTOK_SIGNED) \
+  _("__signed",		0,	CTOK_SIGNED) \
+  _("__signed__",	0,	CTOK_SIGNED) \
+  _("unsigned",		0,	CTOK_UNSIGNED) \
+  /* Type qualifiers. */ \
+  _("const",		0,	CTOK_CONST) \
+  _("__const",		0,	CTOK_CONST) \
+  _("__const__",	0,	CTOK_CONST) \
+  _("volatile",		0,	CTOK_VOLATILE) \
+  _("__volatile",	0,	CTOK_VOLATILE) \
+  _("__volatile__",	0,	CTOK_VOLATILE) \
+  _("restrict",		0,	CTOK_RESTRICT) \
+  _("__restrict",	0,	CTOK_RESTRICT) \
+  _("__restrict__",	0,	CTOK_RESTRICT) \
+  _("inline",		0,	CTOK_INLINE) \
+  _("__inline",		0,	CTOK_INLINE) \
+  _("__inline__",	0,	CTOK_INLINE) \
+  /* Storage class specifiers. */ \
+  _("typedef",		0,	CTOK_TYPEDEF) \
+  _("extern",		0,	CTOK_EXTERN) \
+  _("static",		0,	CTOK_STATIC) \
+  _("auto",		0,	CTOK_AUTO) \
+  _("register",		0,	CTOK_REGISTER) \
+  /* GCC Attributes. */ \
+  _("__extension__",	0,	CTOK_EXTENSION) \
+  _("__attribute",	0,	CTOK_ATTRIBUTE) \
+  _("__attribute__",	0,	CTOK_ATTRIBUTE) \
+  _("asm",		0,	CTOK_ASM) \
+  _("__asm",		0,	CTOK_ASM) \
+  _("__asm__",		0,	CTOK_ASM) \
+  /* MSVC Attributes. */ \
+  _("__declspec",	0,	CTOK_DECLSPEC) \
+  _("__cdecl",		CTCC_CDECL,	CTOK_CCDECL) \
+  _("__thiscall",	CTCC_THISCALL,	CTOK_CCDECL) \
+  _("__fastcall",	CTCC_FASTCALL,	CTOK_CCDECL) \
+  _("__stdcall",	CTCC_STDCALL,	CTOK_CCDECL) \
+  _("__ptr32",		4,	CTOK_PTRSZ) \
+  _("__ptr64",		8,	CTOK_PTRSZ) \
+  /* Other type specifiers. */ \
+  _("struct",		0,	CTOK_STRUCT) \
+  _("union",		0,	CTOK_UNION) \
+  _("enum",		0,	CTOK_ENUM) \
+  /* Operators. */ \
+  _("sizeof",		0,	CTOK_SIZEOF) \
+  _("__alignof",	0,	CTOK_ALIGNOF) \
+  _("__alignof__",	0,	CTOK_ALIGNOF) \
+  /* End of keyword list. */
+
+/* Type info for predefined types. Size merged in. */
+static CTInfo lj_ctype_typeinfo[] = {
+#define CTTYINFODEF(id, sz, ct, info)	CTINFO((ct),(((sz)&0x3fu)<<10)+(info)),
+#define CTTDINFODEF(name, id)		CTINFO(CT_TYPEDEF, CTID_##id),
+#define CTKWINFODEF(name, sz, kw)	CTINFO(CT_KW,(((sz)&0x3fu)<<10)+(kw)),
+CTTYDEF(CTTYINFODEF)
+CTTDDEF(CTTDINFODEF)
+CTKWDEF(CTKWINFODEF)
+#undef CTTYINFODEF
+#undef CTTDINFODEF
+#undef CTKWINFODEF
+  0
+};
+
+/* Predefined type names collected in a single string. */
+static const char * const lj_ctype_typenames =
+#define CTTDNAMEDEF(name, id)		name "\0"
+#define CTKWNAMEDEF(name, sz, cds)	name "\0"
+CTTDDEF(CTTDNAMEDEF)
+CTKWDEF(CTKWNAMEDEF)
+#undef CTTDNAMEDEF
+#undef CTKWNAMEDEF
+;
+
+#define CTTYPEINFO_NUM		(sizeof(lj_ctype_typeinfo)/sizeof(CTInfo)-1)
+#ifdef LUAJIT_CTYPE_CHECK_ANCHOR
+#define CTTYPETAB_MIN		CTTYPEINFO_NUM
+#else
+#define CTTYPETAB_MIN		128
+#endif
+
+/* -- C type interning ---------------------------------------------------- */
+
+#define ct_hashtype(info, size)	(hashrot(info, size) & CTHASH_MASK)
+#define ct_hashname(name) \
+  (hashrot(u32ptr(name), u32ptr(name) + HASH_BIAS) & CTHASH_MASK)
+
+/* Create new type element. */
+CTypeID lj_ctype_new(CTState *cts, CType **ctp)
+{
+  CTypeID id = cts->top;
+  CType *ct;
+  lj_assertCTS(cts->L, "uninitialized cts->L");
+  if (LJ_UNLIKELY(id >= cts->sizetab)) {
+    if (id >= CTID_MAX) lj_err_msg(cts->L, LJ_ERR_TABOV);
+#ifdef LUAJIT_CTYPE_CHECK_ANCHOR
+    ct = lj_mem_newvec(cts->L, id+1, CType);
+    memcpy(ct, cts->tab, id*sizeof(CType));
+    memset(cts->tab, 0, id*sizeof(CType));
+    lj_mem_freevec(cts->g, cts->tab, cts->sizetab, CType);
+    cts->tab = ct;
+    cts->sizetab = id+1;
+#else
+    lj_mem_growvec(cts->L, cts->tab, cts->sizetab, CTID_MAX, CType);
+#endif
+  }
+  cts->top = id+1;
+  *ctp = ct = &cts->tab[id];
+  ct->info = 0;
+  ct->size = 0;
+  ct->sib = 0;
+  ct->next = 0;
+  setgcrefnull(ct->name);
+  return id;
+}
+
+/* Intern a type element. */
+CTypeID lj_ctype_intern(CTState *cts, CTInfo info, CTSize size)
+{
+  uint32_t h = ct_hashtype(info, size);
+  CTypeID id = cts->hash[h];
+  lj_assertCTS(cts->L, "uninitialized cts->L");
+  while (id) {
+    CType *ct = ctype_get(cts, id);
+    if (ct->info == info && ct->size == size)
+      return id;
+    id = ct->next;
+  }
+  id = cts->top;
+  if (LJ_UNLIKELY(id >= cts->sizetab)) {
+    if (id >= CTID_MAX) lj_err_msg(cts->L, LJ_ERR_TABOV);
+    lj_mem_growvec(cts->L, cts->tab, cts->sizetab, CTID_MAX, CType);
+  }
+  cts->top = id+1;
+  cts->tab[id].info = info;
+  cts->tab[id].size = size;
+  cts->tab[id].sib = 0;
+  cts->tab[id].next = cts->hash[h];
+  setgcrefnull(cts->tab[id].name);
+  cts->hash[h] = (CTypeID1)id;
+  return id;
+}
+
+/* Add type element to hash table. */
+static void ctype_addtype(CTState *cts, CType *ct, CTypeID id)
+{
+  uint32_t h = ct_hashtype(ct->info, ct->size);
+  ct->next = cts->hash[h];
+  cts->hash[h] = (CTypeID1)id;
+}
+
+/* Add named element to hash table. */
+void lj_ctype_addname(CTState *cts, CType *ct, CTypeID id)
+{
+  uint32_t h = ct_hashname(gcref(ct->name));
+  ct->next = cts->hash[h];
+  cts->hash[h] = (CTypeID1)id;
+}
+
+/* Get a C type by name, matching the type mask. */
+CTypeID lj_ctype_getname(CTState *cts, CType **ctp, GCstr *name, uint32_t tmask)
+{
+  CTypeID id = cts->hash[ct_hashname(name)];
+  while (id) {
+    CType *ct = ctype_get(cts, id);
+    if (gcref(ct->name) == obj2gco(name) &&
+	((tmask >> ctype_type(ct->info)) & 1)) {
+      *ctp = ct;
+      return id;
+    }
+    id = ct->next;
+  }
+  *ctp = &cts->tab[0];  /* Simplify caller logic. ctype_get() would assert. */
+  return 0;
+}
+
+/* Get a struct/union/enum/function field by name. */
+CType *lj_ctype_getfieldq(CTState *cts, CType *ct, GCstr *name, CTSize *ofs,
+			  CTInfo *qual)
+{
+  while (ct->sib) {
+    ct = ctype_get(cts, ct->sib);
+    if (gcref(ct->name) == obj2gco(name)) {
+      *ofs = ct->size;
+      return ct;
+    }
+    if (ctype_isxattrib(ct->info, CTA_SUBTYPE)) {
+      CType *fct, *cct = ctype_child(cts, ct);
+      CTInfo q = 0;
+      while (ctype_isattrib(cct->info)) {
+	if (ctype_attrib(cct->info) == CTA_QUAL) q |= cct->size;
+	cct = ctype_child(cts, cct);
+      }
+      fct = lj_ctype_getfieldq(cts, cct, name, ofs, qual);
+      if (fct) {
+	if (qual) *qual |= q;
+	*ofs += ct->size;
+	return fct;
+      }
+    }
+  }
+  return NULL;  /* Not found. */
+}
+
+/* -- C type information -------------------------------------------------- */
+
+/* Follow references and get raw type for a C type ID. */
+CType *lj_ctype_rawref(CTState *cts, CTypeID id)
+{
+  CType *ct = ctype_get(cts, id);
+  while (ctype_isattrib(ct->info) || ctype_isref(ct->info))
+    ct = ctype_child(cts, ct);
+  return ct;
+}
+
+/* Get size for a C type ID. Does NOT support VLA/VLS. */
+CTSize lj_ctype_size(CTState *cts, CTypeID id)
+{
+  CType *ct = ctype_raw(cts, id);
+  return ctype_hassize(ct->info) ? ct->size : CTSIZE_INVALID;
+}
+
+/* Get size for a variable-length C type. Does NOT support other C types. */
+CTSize lj_ctype_vlsize(CTState *cts, CType *ct, CTSize nelem)
+{
+  uint64_t xsz = 0;
+  if (ctype_isstruct(ct->info)) {
+    CTypeID arrid = 0, fid = ct->sib;
+    xsz = ct->size;  /* Add the struct size. */
+    while (fid) {
+      CType *ctf = ctype_get(cts, fid);
+      if (ctype_type(ctf->info) == CT_FIELD)
+	arrid = ctype_cid(ctf->info);  /* Remember last field of VLS. */
+      fid = ctf->sib;
+    }
+    ct = ctype_raw(cts, arrid);
+  }
+  lj_assertCTS(ctype_isvlarray(ct->info), "VLA expected");
+  ct = ctype_rawchild(cts, ct);  /* Get array element. */
+  lj_assertCTS(ctype_hassize(ct->info), "bad VLA without size");
+  /* Calculate actual size of VLA and check for overflow. */
+  xsz += (uint64_t)ct->size * nelem;
+  return xsz < 0x80000000u ? (CTSize)xsz : CTSIZE_INVALID;
+}
+
+/* Get type, qualifiers, size and alignment for a C type ID. */
+CTInfo lj_ctype_info(CTState *cts, CTypeID id, CTSize *szp)
+{
+  CTInfo qual = 0;
+  CType *ct = ctype_get(cts, id);
+  for (;;) {
+    CTInfo info = ct->info;
+    if (ctype_isenum(info)) {
+      /* Follow child. Need to look at its attributes, too. */
+    } else if (ctype_isattrib(info)) {
+      if (ctype_isxattrib(info, CTA_QUAL))
+	qual |= ct->size;
+      else if (ctype_isxattrib(info, CTA_ALIGN) && !(qual & CTFP_ALIGNED))
+	qual |= CTFP_ALIGNED + CTALIGN(ct->size);
+    } else {
+      if (!(qual & CTFP_ALIGNED)) qual |= (info & CTF_ALIGN);
+      qual |= (info & ~(CTF_ALIGN|CTMASK_CID));
+      lj_assertCTS(ctype_hassize(info) || ctype_isfunc(info),
+		   "ctype without size");
+      *szp = ctype_isfunc(info) ? CTSIZE_INVALID : ct->size;
+      break;
+    }
+    ct = ctype_get(cts, ctype_cid(info));
+  }
+  return qual;
+}
+
+/* Ditto, but follow a reference. */
+CTInfo lj_ctype_info_raw(CTState *cts, CTypeID id, CTSize *szp)
+{
+  CType *ct = ctype_get(cts, id);
+  if (ctype_isref(ct->info)) id = ctype_cid(ct->info);
+  return lj_ctype_info(cts, id, szp);
+}
+
+/* Get ctype metamethod. */
+cTValue *lj_ctype_meta(CTState *cts, CTypeID id, MMS mm)
+{
+  CType *ct = ctype_get(cts, id);
+  cTValue *tv;
+  while (ctype_isattrib(ct->info) || ctype_isref(ct->info)) {
+    id = ctype_cid(ct->info);
+    ct = ctype_get(cts, id);
+  }
+  if (ctype_isptr(ct->info) &&
+      ctype_isfunc(ctype_get(cts, ctype_cid(ct->info))->info))
+    tv = lj_tab_getstr(cts->miscmap, &cts->g->strempty);
+  else
+    tv = lj_tab_getinth(cts->miscmap, -(int32_t)id);
+  if (tv && tvistab(tv) &&
+      (tv = lj_tab_getstr(tabV(tv), mmname_str(cts->g, mm))) && !tvisnil(tv))
+    return tv;
+  return NULL;
+}
+
+/* -- C type representation ----------------------------------------------- */
+
+/* Fixed max. length of a C type representation. */
+#define CTREPR_MAX		512
+
+typedef struct CTRepr {
+  char *pb, *pe;
+  CTState *cts;
+  lua_State *L;
+  int needsp;
+  int ok;
+  char buf[CTREPR_MAX];
+} CTRepr;
+
+/* Prepend string. */
+static void ctype_prepstr(CTRepr *ctr, const char *str, MSize len)
+{
+  char *p = ctr->pb;
+  if (ctr->buf + len+1 > p) { ctr->ok = 0; return; }
+  if (ctr->needsp) *--p = ' ';
+  ctr->needsp = 1;
+  p -= len;
+  while (len-- > 0) p[len] = str[len];
+  ctr->pb = p;
+}
+
+#define ctype_preplit(ctr, str)	ctype_prepstr((ctr), "" str, sizeof(str)-1)
+
+/* Prepend char. */
+static void ctype_prepc(CTRepr *ctr, int c)
+{
+  if (ctr->buf >= ctr->pb) { ctr->ok = 0; return; }
+  *--ctr->pb = c;
+}
+
+/* Prepend number. */
+static void ctype_prepnum(CTRepr *ctr, uint32_t n)
+{
+  char *p = ctr->pb;
+  if (ctr->buf + 10+1 > p) { ctr->ok = 0; return; }
+  do { *--p = (char)('0' + n % 10); } while (n /= 10);
+  ctr->pb = p;
+  ctr->needsp = 0;
+}
+
+/* Append char. */
+static void ctype_appc(CTRepr *ctr, int c)
+{
+  if (ctr->pe >= ctr->buf + CTREPR_MAX) { ctr->ok = 0; return; }
+  *ctr->pe++ = c;
+}
+
+/* Append number. */
+static void ctype_appnum(CTRepr *ctr, uint32_t n)
+{
+  char buf[10];
+  char *p = buf+sizeof(buf);
+  char *q = ctr->pe;
+  if (q > ctr->buf + CTREPR_MAX - 10) { ctr->ok = 0; return; }
+  do { *--p = (char)('0' + n % 10); } while (n /= 10);
+  do { *q++ = *p++; } while (p < buf+sizeof(buf));
+  ctr->pe = q;
+}
+
+/* Prepend qualifiers. */
+static void ctype_prepqual(CTRepr *ctr, CTInfo info)
+{
+  if ((info & CTF_VOLATILE)) ctype_preplit(ctr, "volatile");
+  if ((info & CTF_CONST)) ctype_preplit(ctr, "const");
+}
+
+/* Prepend named type. */
+static void ctype_preptype(CTRepr *ctr, CType *ct, CTInfo qual, const char *t)
+{
+  if (gcref(ct->name)) {
+    GCstr *str = gco2str(gcref(ct->name));
+    ctype_prepstr(ctr, strdata(str), str->len);
+  } else {
+    if (ctr->needsp) ctype_prepc(ctr, ' ');
+    ctype_prepnum(ctr, ctype_typeid(ctr->cts, ct));
+    ctr->needsp = 1;
+  }
+  ctype_prepstr(ctr, t, (MSize)strlen(t));
+  ctype_prepqual(ctr, qual);
+}
+
+static void ctype_repr(CTRepr *ctr, CTypeID id)
+{
+  CType *ct = ctype_get(ctr->cts, id);
+  CTInfo qual = 0;
+  int ptrto = 0;
+  for (;;) {
+    CTInfo info = ct->info;
+    CTSize size = ct->size;
+    switch (ctype_type(info)) {
+    case CT_NUM:
+      if ((info & CTF_BOOL)) {
+	ctype_preplit(ctr, "bool");
+      } else if ((info & CTF_FP)) {
+	if (size == sizeof(double)) ctype_preplit(ctr, "double");
+	else if (size == sizeof(float)) ctype_preplit(ctr, "float");
+	else ctype_preplit(ctr, "long double");
+      } else if (size == 1) {
+	if (!((info ^ CTF_UCHAR) & CTF_UNSIGNED)) ctype_preplit(ctr, "char");
+	else if (CTF_UCHAR) ctype_preplit(ctr, "signed char");
+	else ctype_preplit(ctr, "unsigned char");
+      } else if (size < 8) {
+	if (size == 4) ctype_preplit(ctr, "int");
+	else ctype_preplit(ctr, "short");
+	if ((info & CTF_UNSIGNED)) ctype_preplit(ctr, "unsigned");
+      } else {
+	ctype_preplit(ctr, "_t");
+	ctype_prepnum(ctr, size*8);
+	ctype_preplit(ctr, "int");
+	if ((info & CTF_UNSIGNED)) ctype_prepc(ctr, 'u');
+      }
+      ctype_prepqual(ctr, (qual|info));
+      return;
+    case CT_VOID:
+      ctype_preplit(ctr, "void");
+      ctype_prepqual(ctr, (qual|info));
+      return;
+    case CT_STRUCT:
+      ctype_preptype(ctr, ct, qual, (info & CTF_UNION) ? "union" : "struct");
+      return;
+    case CT_ENUM:
+      if (id == CTID_CTYPEID) {
+	ctype_preplit(ctr, "ctype");
+	return;
+      }
+      ctype_preptype(ctr, ct, qual, "enum");
+      return;
+    case CT_ATTRIB:
+      if (ctype_attrib(info) == CTA_QUAL) qual |= size;
+      break;
+    case CT_PTR:
+      if ((info & CTF_REF)) {
+	ctype_prepc(ctr, '&');
+      } else {
+	ctype_prepqual(ctr, (qual|info));
+	if (LJ_64 && size == 4) ctype_preplit(ctr, "__ptr32");
+	ctype_prepc(ctr, '*');
+      }
+      qual = 0;
+      ptrto = 1;
+      ctr->needsp = 1;
+      break;
+    case CT_ARRAY:
+      if (ctype_isrefarray(info)) {
+	ctr->needsp = 1;
+	if (ptrto) { ptrto = 0; ctype_prepc(ctr, '('); ctype_appc(ctr, ')'); }
+	ctype_appc(ctr, '[');
+	if (size != CTSIZE_INVALID) {
+	  CTSize csize = ctype_child(ctr->cts, ct)->size;
+	  ctype_appnum(ctr, csize ? size/csize : 0);
+	} else if ((info & CTF_VLA)) {
+	  ctype_appc(ctr, '?');
+	}
+	ctype_appc(ctr, ']');
+      } else if ((info & CTF_COMPLEX)) {
+	if (size == 2*sizeof(float)) ctype_preplit(ctr, "float");
+	ctype_preplit(ctr, "complex");
+	return;
+      } else {
+	ctype_preplit(ctr, ")))");
+	ctype_prepnum(ctr, size);
+	ctype_preplit(ctr, "__attribute__((vector_size(");
+      }
+      break;
+    case CT_FUNC:
+      ctr->needsp = 1;
+      if (ptrto) { ptrto = 0; ctype_prepc(ctr, '('); ctype_appc(ctr, ')'); }
+      ctype_appc(ctr, '(');
+      ctype_appc(ctr, ')');
+      break;
+    default:
+      lj_assertG_(ctr->cts->g, 0, "bad ctype %08x", info);
+      break;
+    }
+    ct = ctype_get(ctr->cts, ctype_cid(info));
+  }
+}
+
+/* Return a printable representation of a C type. */
+GCstr *lj_ctype_repr(lua_State *L, CTypeID id, GCstr *name)
+{
+  global_State *g = G(L);
+  CTRepr ctr;
+  ctr.pb = ctr.pe = &ctr.buf[CTREPR_MAX/2];
+  ctr.cts = ctype_ctsG(g);
+  ctr.L = L;
+  ctr.ok = 1;
+  ctr.needsp = 0;
+  if (name) ctype_prepstr(&ctr, strdata(name), name->len);
+  ctype_repr(&ctr, id);
+  if (LJ_UNLIKELY(!ctr.ok)) return lj_str_newlit(L, "?");
+  return lj_str_new(L, ctr.pb, ctr.pe - ctr.pb);
+}
+
+/* Convert int64_t/uint64_t to string with 'LL' or 'ULL' suffix. */
+GCstr *lj_ctype_repr_int64(lua_State *L, uint64_t n, int isunsigned)
+{
+  char buf[1+20+3];
+  char *p = buf+sizeof(buf);
+  int sign = 0;
+  *--p = 'L'; *--p = 'L';
+  if (isunsigned) {
+    *--p = 'U';
+  } else if ((int64_t)n < 0) {
+    n = (uint64_t)-(int64_t)n;
+    sign = 1;
+  }
+  do { *--p = (char)('0' + n % 10); } while (n /= 10);
+  if (sign) *--p = '-';
+  return lj_str_new(L, p, (size_t)(buf+sizeof(buf)-p));
+}
+
+/* Convert complex to string with 'i' or 'I' suffix. */
+GCstr *lj_ctype_repr_complex(lua_State *L, void *sp, CTSize size)
+{
+  SBuf *sb = lj_buf_tmp_(L);
+  TValue re, im;
+  if (size == 2*sizeof(double)) {
+    re.n = *(double *)sp; im.n = ((double *)sp)[1];
+  } else {
+    re.n = (double)*(float *)sp; im.n = (double)((float *)sp)[1];
+  }
+  lj_strfmt_putfnum(sb, STRFMT_G14, re.n);
+  if (!(im.u32.hi & 0x80000000u) || im.n != im.n) lj_buf_putchar(sb, '+');
+  lj_strfmt_putfnum(sb, STRFMT_G14, im.n);
+  lj_buf_putchar(sb, sb->w[-1] >= 'a' ? 'I' : 'i');
+  return lj_buf_str(L, sb);
+}
+
+/* -- C type state -------------------------------------------------------- */
+
+/* Initialize C type table and state. */
+CTState *lj_ctype_init(lua_State *L)
+{
+  CTState *cts = lj_mem_newt(L, sizeof(CTState), CTState);
+  CType *ct = lj_mem_newvec(L, CTTYPETAB_MIN, CType);
+  const char *name = lj_ctype_typenames;
+  CTypeID id;
+  memset(cts, 0, sizeof(CTState));
+  cts->tab = ct;
+  cts->sizetab = CTTYPETAB_MIN;
+  cts->top = CTTYPEINFO_NUM;
+  cts->L = NULL;
+  cts->g = G(L);
+  for (id = 0; id < CTTYPEINFO_NUM; id++, ct++) {
+    CTInfo info = lj_ctype_typeinfo[id];
+    ct->size = (CTSize)((int32_t)(info << 16) >> 26);
+    ct->info = info & 0xffff03ffu;
+    ct->sib = 0;
+    if (ctype_type(info) == CT_KW || ctype_istypedef(info)) {
+      size_t len = strlen(name);
+      GCstr *str = lj_str_new(L, name, len);
+      ctype_setname(ct, str);
+      name += len+1;
+      lj_ctype_addname(cts, ct, id);
+    } else {
+      setgcrefnull(ct->name);
+      ct->next = 0;
+      if (!ctype_isenum(info)) ctype_addtype(cts, ct, id);
+    }
+  }
+  setmref(G(L)->ctype_state, cts);
+  return cts;
+}
+
+/* Free C type table and state. */
+void lj_ctype_freestate(global_State *g)
+{
+  CTState *cts = ctype_ctsG(g);
+  if (cts) {
+    lj_ccallback_mcode_free(cts);
+    lj_mem_freevec(g, cts->tab, cts->sizetab, CType);
+    lj_mem_freevec(g, cts->cb.cbid, cts->cb.sizeid, CTypeID1);
+    lj_mem_freet(g, cts);
+  }
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_ctype.h b/libs/luajit-cmake/luajit/src/lj_ctype.h
new file mode 100644
index 0000000..3dbcdbf
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_ctype.h
@@ -0,0 +1,481 @@
+/*
+** C type management.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_CTYPE_H
+#define _LJ_CTYPE_H
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+
+#if LJ_HASFFI
+
+/* -- C type definitions -------------------------------------------------- */
+
+/* C type numbers. Highest 4 bits of C type info. ORDER CT. */
+enum {
+  /* Externally visible types. */
+  CT_NUM,		/* Integer or floating-point numbers. */
+  CT_STRUCT,		/* Struct or union. */
+  CT_PTR,		/* Pointer or reference. */
+  CT_ARRAY,		/* Array or complex type. */
+  CT_MAYCONVERT = CT_ARRAY,
+  CT_VOID,		/* Void type. */
+  CT_ENUM,		/* Enumeration. */
+  CT_HASSIZE = CT_ENUM,  /* Last type where ct->size holds the actual size. */
+  CT_FUNC,		/* Function. */
+  CT_TYPEDEF,		/* Typedef. */
+  CT_ATTRIB,		/* Miscellaneous attributes. */
+  /* Internal element types. */
+  CT_FIELD,		/* Struct/union field or function parameter. */
+  CT_BITFIELD,		/* Struct/union bitfield. */
+  CT_CONSTVAL,		/* Constant value. */
+  CT_EXTERN,		/* External reference. */
+  CT_KW			/* Keyword. */
+};
+
+LJ_STATIC_ASSERT(((int)CT_PTR & (int)CT_ARRAY) == CT_PTR);
+LJ_STATIC_ASSERT(((int)CT_STRUCT & (int)CT_ARRAY) == CT_STRUCT);
+
+/*
+**  ---------- info ------------
+** |type      flags...  A   cid | size   |  sib  | next  | name  |
+** +----------------------------+--------+-------+-------+-------+--
+** |NUM       BFcvUL..  A       | size   |       | type  |       |
+** |STRUCT    ..cvU..V  A       | size   | field | name? | name? |
+** |PTR       ..cvR...  A   cid | size   |       | type  |       |
+** |ARRAY     VCcv...V  A   cid | size   |       | type  |       |
+** |VOID      ..cv....  A       | size   |       | type  |       |
+** |ENUM                A   cid | size   | const | name? | name? |
+** |FUNC      ....VS.. cc   cid | nargs  | field | name? | name? |
+** |TYPEDEF                 cid |        |       | name  | name  |
+** |ATTRIB        attrnum   cid | attr   | sib?  | type? |       |
+** |FIELD                   cid | offset | field |       | name? |
+** |BITFIELD  B.cvU csz bsz pos | offset | field |       | name? |
+** |CONSTVAL    c           cid | value  | const | name  | name  |
+** |EXTERN                  cid |        | sib?  | name  | name  |
+** |KW                      tok | size   |       | name  | name  |
+** +----------------------------+--------+-------+-------+-------+--
+**        ^^  ^^--- bits used for C type conversion dispatch
+*/
+
+/* C type info flags.     TFFArrrr  */
+#define CTF_BOOL	0x08000000u	/* Boolean: NUM, BITFIELD. */
+#define CTF_FP		0x04000000u	/* Floating-point: NUM. */
+#define CTF_CONST	0x02000000u	/* Const qualifier. */
+#define CTF_VOLATILE	0x01000000u	/* Volatile qualifier. */
+#define CTF_UNSIGNED	0x00800000u	/* Unsigned: NUM, BITFIELD. */
+#define CTF_LONG	0x00400000u	/* Long: NUM. */
+#define CTF_VLA		0x00100000u	/* Variable-length: ARRAY, STRUCT. */
+#define CTF_REF		0x00800000u	/* Reference: PTR. */
+#define CTF_VECTOR	0x08000000u	/* Vector: ARRAY. */
+#define CTF_COMPLEX	0x04000000u	/* Complex: ARRAY. */
+#define CTF_UNION	0x00800000u	/* Union: STRUCT. */
+#define CTF_VARARG	0x00800000u	/* Vararg: FUNC. */
+#define CTF_SSEREGPARM	0x00400000u	/* SSE register parameters: FUNC. */
+
+#define CTF_QUAL	(CTF_CONST|CTF_VOLATILE)
+#define CTF_ALIGN	(CTMASK_ALIGN<<CTSHIFT_ALIGN)
+#define CTF_UCHAR	((char)-1 > 0 ? CTF_UNSIGNED : 0)
+
+/* Flags used in parser.  .F.Ammvf   cp->attr  */
+#define CTFP_ALIGNED	0x00000001u	/* cp->attr + ALIGN */
+#define CTFP_PACKED	0x00000002u	/* cp->attr */
+/*                        ...C...f   cp->fattr */
+#define CTFP_CCONV	0x00000001u	/* cp->fattr + CCONV/[SSE]REGPARM */
+
+/* C type info bitfields. */
+#define CTMASK_CID	0x0000ffffu	/* Max. 65536 type IDs. */
+#define CTMASK_NUM	0xf0000000u	/* Max. 16 type numbers. */
+#define CTSHIFT_NUM	28
+#define CTMASK_ALIGN	15		/* Max. alignment is 2^15. */
+#define CTSHIFT_ALIGN	16
+#define CTMASK_ATTRIB	255		/* Max. 256 attributes. */
+#define CTSHIFT_ATTRIB	16
+#define CTMASK_CCONV	3		/* Max. 4 calling conventions. */
+#define CTSHIFT_CCONV	16
+#define CTMASK_REGPARM	3		/* Max. 0-3 regparms. */
+#define CTSHIFT_REGPARM	18
+/* Bitfields only used in parser. */
+#define CTMASK_VSIZEP	15		/* Max. vector size is 2^15. */
+#define CTSHIFT_VSIZEP	4
+#define CTMASK_MSIZEP	255		/* Max. type size (via mode) is 128. */
+#define CTSHIFT_MSIZEP	8
+
+/* Info bits for BITFIELD. Max. size of bitfield is 64 bits. */
+#define CTBSZ_MAX	32		/* Max. size of bitfield is 32 bit. */
+#define CTBSZ_FIELD	127		/* Temp. marker for regular field. */
+#define CTMASK_BITPOS	127
+#define CTMASK_BITBSZ	127
+#define CTMASK_BITCSZ	127
+#define CTSHIFT_BITPOS	0
+#define CTSHIFT_BITBSZ	8
+#define CTSHIFT_BITCSZ	16
+
+#define CTF_INSERT(info, field, val) \
+  info = (info & ~(CTMASK_##field<<CTSHIFT_##field)) | \
+	  (((CTSize)(val) & CTMASK_##field) << CTSHIFT_##field)
+
+/* Calling conventions. ORDER CC */
+enum { CTCC_CDECL, CTCC_THISCALL, CTCC_FASTCALL, CTCC_STDCALL };
+
+/* Attribute numbers. */
+enum {
+  CTA_NONE,		/* Ignored attribute. Must be zero. */
+  CTA_QUAL,		/* Unmerged qualifiers. */
+  CTA_ALIGN,		/* Alignment override. */
+  CTA_SUBTYPE,		/* Transparent sub-type. */
+  CTA_REDIR,		/* Redirected symbol name. */
+  CTA_BAD,		/* To catch bad IDs. */
+  CTA__MAX
+};
+
+/* Special sizes. */
+#define CTSIZE_INVALID	0xffffffffu
+
+typedef uint32_t CTInfo;	/* Type info. */
+typedef uint32_t CTSize;	/* Type size. */
+typedef uint32_t CTypeID;	/* Type ID. */
+typedef uint16_t CTypeID1;	/* Minimum-sized type ID. */
+
+/* C type table element. */
+typedef struct CType {
+  CTInfo info;		/* Type info. */
+  CTSize size;		/* Type size or other info. */
+  CTypeID1 sib;		/* Sibling element. */
+  CTypeID1 next;	/* Next element in hash chain. */
+  GCRef name;		/* Element name (GCstr). */
+} CType;
+
+#define CTHASH_SIZE	128	/* Number of hash anchors. */
+#define CTHASH_MASK	(CTHASH_SIZE-1)
+
+/* Simplify target-specific configuration. Checked in lj_ccall.h. */
+#define CCALL_MAX_GPR		8
+#define CCALL_MAX_FPR		8
+
+typedef LJ_ALIGN(8) union FPRCBArg { double d; float f[2]; } FPRCBArg;
+
+/* C callback state. Defined here, to avoid dragging in lj_ccall.h. */
+
+typedef LJ_ALIGN(8) struct CCallback {
+  FPRCBArg fpr[CCALL_MAX_FPR];	/* Arguments/results in FPRs. */
+  intptr_t gpr[CCALL_MAX_GPR];	/* Arguments/results in GPRs. */
+  intptr_t *stack;		/* Pointer to arguments on stack. */
+  void *mcode;			/* Machine code for callback func. pointers. */
+  CTypeID1 *cbid;		/* Callback type table. */
+  MSize sizeid;			/* Size of callback type table. */
+  MSize topid;			/* Highest unused callback type table slot. */
+  MSize slot;			/* Current callback slot. */
+} CCallback;
+
+/* C type state. */
+typedef struct CTState {
+  CType *tab;		/* C type table. */
+  CTypeID top;		/* Current top of C type table. */
+  MSize sizetab;	/* Size of C type table. */
+  lua_State *L;		/* Lua state (needed for errors and allocations). */
+  global_State *g;	/* Global state. */
+  GCtab *finalizer;	/* Map of cdata to finalizer. */
+  GCtab *miscmap;	/* Map of -CTypeID to metatable and cb slot to func. */
+  CCallback cb;		/* Temporary callback state. */
+  CTypeID1 hash[CTHASH_SIZE];  /* Hash anchors for C type table. */
+} CTState;
+
+#define CTINFO(ct, flags)	(((CTInfo)(ct) << CTSHIFT_NUM) + (flags))
+#define CTALIGN(al)		((CTSize)(al) << CTSHIFT_ALIGN)
+#define CTATTRIB(at)		((CTInfo)(at) << CTSHIFT_ATTRIB)
+
+#define ctype_type(info)	((info) >> CTSHIFT_NUM)
+#define ctype_cid(info)		((CTypeID)((info) & CTMASK_CID))
+#define ctype_align(info)	(((info) >> CTSHIFT_ALIGN) & CTMASK_ALIGN)
+#define ctype_attrib(info)	(((info) >> CTSHIFT_ATTRIB) & CTMASK_ATTRIB)
+#define ctype_bitpos(info)	(((info) >> CTSHIFT_BITPOS) & CTMASK_BITPOS)
+#define ctype_bitbsz(info)	(((info) >> CTSHIFT_BITBSZ) & CTMASK_BITBSZ)
+#define ctype_bitcsz(info)	(((info) >> CTSHIFT_BITCSZ) & CTMASK_BITCSZ)
+#define ctype_vsizeP(info)	(((info) >> CTSHIFT_VSIZEP) & CTMASK_VSIZEP)
+#define ctype_msizeP(info)	(((info) >> CTSHIFT_MSIZEP) & CTMASK_MSIZEP)
+#define ctype_cconv(info)	(((info) >> CTSHIFT_CCONV) & CTMASK_CCONV)
+
+/* Simple type checks. */
+#define ctype_isnum(info)	(ctype_type((info)) == CT_NUM)
+#define ctype_isvoid(info)	(ctype_type((info)) == CT_VOID)
+#define ctype_isptr(info)	(ctype_type((info)) == CT_PTR)
+#define ctype_isarray(info)	(ctype_type((info)) == CT_ARRAY)
+#define ctype_isstruct(info)	(ctype_type((info)) == CT_STRUCT)
+#define ctype_isfunc(info)	(ctype_type((info)) == CT_FUNC)
+#define ctype_isenum(info)	(ctype_type((info)) == CT_ENUM)
+#define ctype_istypedef(info)	(ctype_type((info)) == CT_TYPEDEF)
+#define ctype_isattrib(info)	(ctype_type((info)) == CT_ATTRIB)
+#define ctype_isfield(info)	(ctype_type((info)) == CT_FIELD)
+#define ctype_isbitfield(info)	(ctype_type((info)) == CT_BITFIELD)
+#define ctype_isconstval(info)	(ctype_type((info)) == CT_CONSTVAL)
+#define ctype_isextern(info)	(ctype_type((info)) == CT_EXTERN)
+#define ctype_hassize(info)	(ctype_type((info)) <= CT_HASSIZE)
+
+/* Combined type and flag checks. */
+#define ctype_isinteger(info) \
+  (((info) & (CTMASK_NUM|CTF_BOOL|CTF_FP)) == CTINFO(CT_NUM, 0))
+#define ctype_isinteger_or_bool(info) \
+  (((info) & (CTMASK_NUM|CTF_FP)) == CTINFO(CT_NUM, 0))
+#define ctype_isbool(info) \
+  (((info) & (CTMASK_NUM|CTF_BOOL)) == CTINFO(CT_NUM, CTF_BOOL))
+#define ctype_isfp(info) \
+  (((info) & (CTMASK_NUM|CTF_FP)) == CTINFO(CT_NUM, CTF_FP))
+
+#define ctype_ispointer(info) \
+  ((ctype_type(info) >> 1) == (CT_PTR >> 1))  /* Pointer or array. */
+#define ctype_isref(info) \
+  (((info) & (CTMASK_NUM|CTF_REF)) == CTINFO(CT_PTR, CTF_REF))
+
+#define ctype_isrefarray(info) \
+  (((info) & (CTMASK_NUM|CTF_VECTOR|CTF_COMPLEX)) == CTINFO(CT_ARRAY, 0))
+#define ctype_isvector(info) \
+  (((info) & (CTMASK_NUM|CTF_VECTOR)) == CTINFO(CT_ARRAY, CTF_VECTOR))
+#define ctype_iscomplex(info) \
+  (((info) & (CTMASK_NUM|CTF_COMPLEX)) == CTINFO(CT_ARRAY, CTF_COMPLEX))
+
+#define ctype_isvltype(info) \
+  (((info) & ((CTMASK_NUM|CTF_VLA) - (2u<<CTSHIFT_NUM))) == \
+   CTINFO(CT_STRUCT, CTF_VLA))  /* VL array or VL struct. */
+#define ctype_isvlarray(info) \
+  (((info) & (CTMASK_NUM|CTF_VLA)) == CTINFO(CT_ARRAY, CTF_VLA))
+
+#define ctype_isxattrib(info, at) \
+  (((info) & (CTMASK_NUM|CTATTRIB(CTMASK_ATTRIB))) == \
+   CTINFO(CT_ATTRIB, CTATTRIB(at)))
+
+/* Target-dependent sizes and alignments. */
+#if LJ_64
+#define CTSIZE_PTR	8
+#define CTALIGN_PTR	CTALIGN(3)
+#else
+#define CTSIZE_PTR	4
+#define CTALIGN_PTR	CTALIGN(2)
+#endif
+
+#define CTINFO_REF(ref) \
+  CTINFO(CT_PTR, (CTF_CONST|CTF_REF|CTALIGN_PTR) + (ref))
+
+#define CT_MEMALIGN	3	/* Alignment guaranteed by memory allocator. */
+
+#ifdef LUA_USE_ASSERT
+#define lj_assertCTS(c, ...)	(lj_assertG_(cts->g, (c), __VA_ARGS__))
+#else
+#define lj_assertCTS(c, ...)	((void)cts)
+#endif
+
+/* -- Predefined types ---------------------------------------------------- */
+
+/* Target-dependent types. */
+#if LJ_TARGET_PPC
+#define CTTYDEFP(_) \
+  _(LINT32,		4,	CT_NUM, CTF_LONG|CTALIGN(2))
+#else
+#define CTTYDEFP(_)
+#endif
+
+/* Common types. */
+#define CTTYDEF(_) \
+  _(NONE,		0,	CT_ATTRIB, CTATTRIB(CTA_BAD)) \
+  _(VOID,		-1,	CT_VOID, CTALIGN(0)) \
+  _(CVOID,		-1,	CT_VOID, CTF_CONST|CTALIGN(0)) \
+  _(BOOL,		1,	CT_NUM, CTF_BOOL|CTF_UNSIGNED|CTALIGN(0)) \
+  _(CCHAR,		1,	CT_NUM, CTF_CONST|CTF_UCHAR|CTALIGN(0)) \
+  _(INT8,		1,	CT_NUM, CTALIGN(0)) \
+  _(UINT8,		1,	CT_NUM, CTF_UNSIGNED|CTALIGN(0)) \
+  _(INT16,		2,	CT_NUM, CTALIGN(1)) \
+  _(UINT16,		2,	CT_NUM, CTF_UNSIGNED|CTALIGN(1)) \
+  _(INT32,		4,	CT_NUM, CTALIGN(2)) \
+  _(UINT32,		4,	CT_NUM, CTF_UNSIGNED|CTALIGN(2)) \
+  _(INT64,		8,	CT_NUM, CTF_LONG|CTALIGN(3)) \
+  _(UINT64,		8,	CT_NUM, CTF_UNSIGNED|CTF_LONG|CTALIGN(3)) \
+  _(FLOAT,		4,	CT_NUM, CTF_FP|CTALIGN(2)) \
+  _(DOUBLE,		8,	CT_NUM, CTF_FP|CTALIGN(3)) \
+  _(COMPLEX_FLOAT,	8,	CT_ARRAY, CTF_COMPLEX|CTALIGN(2)|CTID_FLOAT) \
+  _(COMPLEX_DOUBLE,	16,	CT_ARRAY, CTF_COMPLEX|CTALIGN(3)|CTID_DOUBLE) \
+  _(P_VOID,	CTSIZE_PTR,	CT_PTR, CTALIGN_PTR|CTID_VOID) \
+  _(P_CVOID,	CTSIZE_PTR,	CT_PTR, CTALIGN_PTR|CTID_CVOID) \
+  _(P_CCHAR,	CTSIZE_PTR,	CT_PTR, CTALIGN_PTR|CTID_CCHAR) \
+  _(P_UINT8,	CTSIZE_PTR,	CT_PTR, CTALIGN_PTR|CTID_UINT8) \
+  _(A_CCHAR,		-1,	CT_ARRAY, CTF_CONST|CTALIGN(0)|CTID_CCHAR) \
+  _(CTYPEID,		4,	CT_ENUM, CTALIGN(2)|CTID_INT32) \
+  CTTYDEFP(_) \
+  /* End of type list. */
+
+/* Public predefined type IDs. */
+enum {
+#define CTTYIDDEF(id, sz, ct, info)	CTID_##id,
+CTTYDEF(CTTYIDDEF)
+#undef CTTYIDDEF
+  /* Predefined typedefs and keywords follow. */
+  CTID_MAX = 65536
+};
+
+/* Target-dependent type IDs. */
+#if LJ_64
+#define CTID_INT_PSZ	CTID_INT64
+#define CTID_UINT_PSZ	CTID_UINT64
+#else
+#define CTID_INT_PSZ	CTID_INT32
+#define CTID_UINT_PSZ	CTID_UINT32
+#endif
+
+#if LJ_ABI_WIN
+#define CTID_WCHAR	CTID_UINT16
+#elif LJ_TARGET_PPC
+#define CTID_WCHAR	CTID_LINT32
+#else
+#define CTID_WCHAR	CTID_INT32
+#endif
+
+/* -- C tokens and keywords ----------------------------------------------- */
+
+/* C lexer keywords. */
+#define CTOKDEF(_) \
+  _(IDENT, "<identifier>") _(STRING, "<string>") \
+  _(INTEGER, "<integer>") _(EOF, "<eof>") \
+  _(OROR, "||") _(ANDAND, "&&") _(EQ, "==") _(NE, "!=") \
+  _(LE, "<=") _(GE, ">=") _(SHL, "<<") _(SHR, ">>") _(DEREF, "->")
+
+/* Simple declaration specifiers. */
+#define CDSDEF(_) \
+  _(VOID) _(BOOL) _(CHAR) _(INT) _(FP) \
+  _(LONG) _(LONGLONG) _(SHORT) _(COMPLEX) _(SIGNED) _(UNSIGNED) \
+  _(CONST) _(VOLATILE) _(RESTRICT) _(INLINE) \
+  _(TYPEDEF) _(EXTERN) _(STATIC) _(AUTO) _(REGISTER)
+
+/* C keywords. */
+#define CKWDEF(_) \
+  CDSDEF(_) _(EXTENSION) _(ASM) _(ATTRIBUTE) \
+  _(DECLSPEC) _(CCDECL) _(PTRSZ) \
+  _(STRUCT) _(UNION) _(ENUM) \
+  _(SIZEOF) _(ALIGNOF)
+
+/* C token numbers. */
+enum {
+  CTOK_OFS = 255,
+#define CTOKNUM(name, sym)	CTOK_##name,
+#define CKWNUM(name)		CTOK_##name,
+CTOKDEF(CTOKNUM)
+CKWDEF(CKWNUM)
+#undef CTOKNUM
+#undef CKWNUM
+  CTOK_FIRSTDECL = CTOK_VOID,
+  CTOK_FIRSTSCL = CTOK_TYPEDEF,
+  CTOK_LASTDECLFLAG = CTOK_REGISTER,
+  CTOK_LASTDECL = CTOK_ENUM
+};
+
+/* Declaration specifier flags. */
+enum {
+#define CDSFLAG(name)	CDF_##name = (1u << (CTOK_##name - CTOK_FIRSTDECL)),
+CDSDEF(CDSFLAG)
+#undef CDSFLAG
+  CDF__END
+};
+
+#define CDF_SCL  (CDF_TYPEDEF|CDF_EXTERN|CDF_STATIC|CDF_AUTO|CDF_REGISTER)
+
+/* -- C type management --------------------------------------------------- */
+
+#define ctype_ctsG(g)		(mref((g)->ctype_state, CTState))
+
+/* Get C type state. */
+static LJ_AINLINE CTState *ctype_cts(lua_State *L)
+{
+  CTState *cts = ctype_ctsG(G(L));
+  cts->L = L;  /* Save L for errors and allocations. */
+  return cts;
+}
+
+/* Load FFI library on-demand. */
+#define ctype_loadffi(L) \
+  do { \
+    if (!ctype_ctsG(G(L))) { \
+      ptrdiff_t oldtop = (char *)L->top - mref(L->stack, char); \
+      luaopen_ffi(L); \
+      L->top = (TValue *)(mref(L->stack, char) + oldtop); \
+    } \
+  } while (0)
+
+/* Save and restore state of C type table. */
+#define LJ_CTYPE_SAVE(cts)	CTState savects_ = *(cts)
+#define LJ_CTYPE_RESTORE(cts) \
+  ((cts)->top = savects_.top, \
+   memcpy((cts)->hash, savects_.hash, sizeof(savects_.hash)))
+
+/* Check C type ID for validity when assertions are enabled. */
+static LJ_AINLINE CTypeID ctype_check(CTState *cts, CTypeID id)
+{
+  UNUSED(cts);
+  lj_assertCTS(id > 0 && id < cts->top, "bad CTID %d", id);
+  return id;
+}
+
+/* Get C type for C type ID. */
+static LJ_AINLINE CType *ctype_get(CTState *cts, CTypeID id)
+{
+  return &cts->tab[ctype_check(cts, id)];
+}
+
+/* Get C type ID for a C type. */
+#define ctype_typeid(cts, ct)	((CTypeID)((ct) - (cts)->tab))
+
+/* Get child C type. */
+static LJ_AINLINE CType *ctype_child(CTState *cts, CType *ct)
+{
+  lj_assertCTS(!(ctype_isvoid(ct->info) || ctype_isstruct(ct->info) ||
+	       ctype_isbitfield(ct->info)),
+	       "ctype %08x has no children", ct->info);
+  return ctype_get(cts, ctype_cid(ct->info));
+}
+
+/* Get raw type for a C type ID. */
+static LJ_AINLINE CType *ctype_raw(CTState *cts, CTypeID id)
+{
+  CType *ct = ctype_get(cts, id);
+  while (ctype_isattrib(ct->info)) ct = ctype_child(cts, ct);
+  return ct;
+}
+
+/* Get raw type of the child of a C type. */
+static LJ_AINLINE CType *ctype_rawchild(CTState *cts, CType *ct)
+{
+  do { ct = ctype_child(cts, ct); } while (ctype_isattrib(ct->info));
+  return ct;
+}
+
+/* Set the name of a C type table element. */
+static LJ_AINLINE void ctype_setname(CType *ct, GCstr *s)
+{
+  /* NOBARRIER: mark string as fixed -- the C type table is never collected. */
+  fixstring(s);
+  setgcref(ct->name, obj2gco(s));
+}
+
+LJ_FUNC CTypeID lj_ctype_new(CTState *cts, CType **ctp);
+LJ_FUNC CTypeID lj_ctype_intern(CTState *cts, CTInfo info, CTSize size);
+LJ_FUNC void lj_ctype_addname(CTState *cts, CType *ct, CTypeID id);
+LJ_FUNC CTypeID lj_ctype_getname(CTState *cts, CType **ctp, GCstr *name,
+				 uint32_t tmask);
+LJ_FUNC CType *lj_ctype_getfieldq(CTState *cts, CType *ct, GCstr *name,
+				  CTSize *ofs, CTInfo *qual);
+#define lj_ctype_getfield(cts, ct, name, ofs) \
+  lj_ctype_getfieldq((cts), (ct), (name), (ofs), NULL)
+LJ_FUNC CType *lj_ctype_rawref(CTState *cts, CTypeID id);
+LJ_FUNC CTSize lj_ctype_size(CTState *cts, CTypeID id);
+LJ_FUNC CTSize lj_ctype_vlsize(CTState *cts, CType *ct, CTSize nelem);
+LJ_FUNC CTInfo lj_ctype_info(CTState *cts, CTypeID id, CTSize *szp);
+LJ_FUNC CTInfo lj_ctype_info_raw(CTState *cts, CTypeID id, CTSize *szp);
+LJ_FUNC cTValue *lj_ctype_meta(CTState *cts, CTypeID id, MMS mm);
+LJ_FUNC GCstr *lj_ctype_repr(lua_State *L, CTypeID id, GCstr *name);
+LJ_FUNC GCstr *lj_ctype_repr_int64(lua_State *L, uint64_t n, int isunsigned);
+LJ_FUNC GCstr *lj_ctype_repr_complex(lua_State *L, void *sp, CTSize size);
+LJ_FUNC CTState *lj_ctype_init(lua_State *L);
+LJ_FUNC void lj_ctype_freestate(global_State *g);
+
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_debug.c b/libs/luajit-cmake/luajit/src/lj_debug.c
new file mode 100644
index 0000000..112f535
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_debug.c
@@ -0,0 +1,705 @@
+/*
+** Debugging and introspection.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_debug_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_buf.h"
+#include "lj_tab.h"
+#include "lj_state.h"
+#include "lj_frame.h"
+#include "lj_bc.h"
+#include "lj_strfmt.h"
+#if LJ_HASJIT
+#include "lj_jit.h"
+#endif
+
+/* -- Frames -------------------------------------------------------------- */
+
+/* Get frame corresponding to a level. */
+cTValue *lj_debug_frame(lua_State *L, int level, int *size)
+{
+  cTValue *frame, *nextframe, *bot = tvref(L->stack)+LJ_FR2;
+  /* Traverse frames backwards. */
+  for (nextframe = frame = L->base-1; frame > bot; ) {
+    if (frame_gc(frame) == obj2gco(L))
+      level++;  /* Skip dummy frames. See lj_err_optype_call(). */
+    if (level-- == 0) {
+      *size = (int)(nextframe - frame);
+      return frame;  /* Level found. */
+    }
+    nextframe = frame;
+    if (frame_islua(frame)) {
+      frame = frame_prevl(frame);
+    } else {
+      if (frame_isvarg(frame))
+	level++;  /* Skip vararg pseudo-frame. */
+      frame = frame_prevd(frame);
+    }
+  }
+  *size = level;
+  return NULL;  /* Level not found. */
+}
+
+/* Invalid bytecode position. */
+#define NO_BCPOS	(~(BCPos)0)
+
+/* Return bytecode position for function/frame or NO_BCPOS. */
+static BCPos debug_framepc(lua_State *L, GCfunc *fn, cTValue *nextframe)
+{
+  const BCIns *ins;
+  GCproto *pt;
+  BCPos pos;
+  lj_assertL(fn->c.gct == ~LJ_TFUNC || fn->c.gct == ~LJ_TTHREAD,
+	     "function or frame expected");
+  if (!isluafunc(fn)) {  /* Cannot derive a PC for non-Lua functions. */
+    return NO_BCPOS;
+  } else if (nextframe == NULL) {  /* Lua function on top. */
+    void *cf = cframe_raw(L->cframe);
+    if (cf == NULL || (char *)cframe_pc(cf) == (char *)cframe_L(cf))
+      return NO_BCPOS;
+    ins = cframe_pc(cf);  /* Only happens during error/hook handling. */
+  } else {
+    if (frame_islua(nextframe)) {
+      ins = frame_pc(nextframe);
+    } else if (frame_iscont(nextframe)) {
+      ins = frame_contpc(nextframe);
+    } else {
+      /* Lua function below errfunc/gc/hook: find cframe to get the PC. */
+      void *cf = cframe_raw(L->cframe);
+      TValue *f = L->base-1;
+      for (;;) {
+	if (cf == NULL)
+	  return NO_BCPOS;
+	while (cframe_nres(cf) < 0) {
+	  if (f >= restorestack(L, -cframe_nres(cf)))
+	    break;
+	  cf = cframe_raw(cframe_prev(cf));
+	  if (cf == NULL)
+	    return NO_BCPOS;
+	}
+	if (f < nextframe)
+	  break;
+	if (frame_islua(f)) {
+	  f = frame_prevl(f);
+	} else {
+	  if (frame_isc(f) || (frame_iscont(f) && frame_iscont_fficb(f)))
+	    cf = cframe_raw(cframe_prev(cf));
+	  f = frame_prevd(f);
+	}
+      }
+      ins = cframe_pc(cf);
+      if (!ins) return NO_BCPOS;
+    }
+  }
+  pt = funcproto(fn);
+  pos = proto_bcpos(pt, ins) - 1;
+#if LJ_HASJIT
+  if (pos > pt->sizebc) {  /* Undo the effects of lj_trace_exit for JLOOP. */
+    GCtrace *T = (GCtrace *)((char *)(ins-1) - offsetof(GCtrace, startins));
+    lj_assertL(bc_isret(bc_op(ins[-1])), "return bytecode expected");
+    pos = proto_bcpos(pt, mref(T->startpc, const BCIns));
+  }
+#endif
+  return pos;
+}
+
+/* -- Line numbers -------------------------------------------------------- */
+
+/* Get line number for a bytecode position. */
+BCLine LJ_FASTCALL lj_debug_line(GCproto *pt, BCPos pc)
+{
+  const void *lineinfo = proto_lineinfo(pt);
+  if (pc <= pt->sizebc && lineinfo) {
+    BCLine first = pt->firstline;
+    if (pc == pt->sizebc) return first + pt->numline;
+    if (pc-- == 0) return first;
+    if (pt->numline < 256)
+      return first + (BCLine)((const uint8_t *)lineinfo)[pc];
+    else if (pt->numline < 65536)
+      return first + (BCLine)((const uint16_t *)lineinfo)[pc];
+    else
+      return first + (BCLine)((const uint32_t *)lineinfo)[pc];
+  }
+  return 0;
+}
+
+/* Get line number for function/frame. */
+static BCLine debug_frameline(lua_State *L, GCfunc *fn, cTValue *nextframe)
+{
+  BCPos pc = debug_framepc(L, fn, nextframe);
+  if (pc != NO_BCPOS) {
+    GCproto *pt = funcproto(fn);
+    lj_assertL(pc <= pt->sizebc, "PC out of range");
+    return lj_debug_line(pt, pc);
+  }
+  return -1;
+}
+
+/* -- Variable names ------------------------------------------------------ */
+
+/* Get name of a local variable from slot number and PC. */
+static const char *debug_varname(const GCproto *pt, BCPos pc, BCReg slot)
+{
+  const char *p = (const char *)proto_varinfo(pt);
+  if (p) {
+    BCPos lastpc = 0;
+    for (;;) {
+      const char *name = p;
+      uint32_t vn = *(const uint8_t *)p;
+      BCPos startpc, endpc;
+      if (vn < VARNAME__MAX) {
+	if (vn == VARNAME_END) break;  /* End of varinfo. */
+      } else {
+	do { p++; } while (*(const uint8_t *)p);  /* Skip over variable name. */
+      }
+      p++;
+      lastpc = startpc = lastpc + lj_buf_ruleb128(&p);
+      if (startpc > pc) break;
+      endpc = startpc + lj_buf_ruleb128(&p);
+      if (pc < endpc && slot-- == 0) {
+	if (vn < VARNAME__MAX) {
+#define VARNAMESTR(name, str)	str "\0"
+	  name = VARNAMEDEF(VARNAMESTR);
+#undef VARNAMESTR
+	  if (--vn) while (*name++ || --vn) ;
+	}
+	return name;
+      }
+    }
+  }
+  return NULL;
+}
+
+/* Get name of local variable from 1-based slot number and function/frame. */
+static TValue *debug_localname(lua_State *L, const lua_Debug *ar,
+			       const char **name, BCReg slot1)
+{
+  uint32_t offset = (uint32_t)ar->i_ci & 0xffff;
+  uint32_t size = (uint32_t)ar->i_ci >> 16;
+  TValue *frame = tvref(L->stack) + offset;
+  TValue *nextframe = size ? frame + size : NULL;
+  GCfunc *fn = frame_func(frame);
+  BCPos pc = debug_framepc(L, fn, nextframe);
+  if (!nextframe) nextframe = L->top+LJ_FR2;
+  if ((int)slot1 < 0) {  /* Negative slot number is for varargs. */
+    if (pc != NO_BCPOS) {
+      GCproto *pt = funcproto(fn);
+      if ((pt->flags & PROTO_VARARG)) {
+	slot1 = pt->numparams + (BCReg)(-(int)slot1);
+	if (frame_isvarg(frame)) {  /* Vararg frame has been set up? (pc!=0) */
+	  nextframe = frame;
+	  frame = frame_prevd(frame);
+	}
+	if (frame + slot1+LJ_FR2 < nextframe) {
+	  *name = "(*vararg)";
+	  return frame+slot1;
+	}
+      }
+    }
+    return NULL;
+  }
+  if (pc != NO_BCPOS &&
+      (*name = debug_varname(funcproto(fn), pc, slot1-1)) != NULL)
+    ;
+  else if (slot1 > 0 && frame + slot1+LJ_FR2 < nextframe)
+    *name = "(*temporary)";
+  return frame+slot1;
+}
+
+/* Get name of upvalue. */
+const char *lj_debug_uvname(GCproto *pt, uint32_t idx)
+{
+  const uint8_t *p = proto_uvinfo(pt);
+  lj_assertX(idx < pt->sizeuv, "bad upvalue index");
+  if (!p) return "";
+  if (idx) while (*p++ || --idx) ;
+  return (const char *)p;
+}
+
+/* Get name and value of upvalue. */
+const char *lj_debug_uvnamev(cTValue *o, uint32_t idx, TValue **tvp, GCobj **op)
+{
+  if (tvisfunc(o)) {
+    GCfunc *fn = funcV(o);
+    if (isluafunc(fn)) {
+      GCproto *pt = funcproto(fn);
+      if (idx < pt->sizeuv) {
+	GCobj *uvo = gcref(fn->l.uvptr[idx]);
+	*tvp = uvval(&uvo->uv);
+	*op = uvo;
+	return lj_debug_uvname(pt, idx);
+      }
+    } else {
+      if (idx < fn->c.nupvalues) {
+	*tvp = &fn->c.upvalue[idx];
+	*op = obj2gco(fn);
+	return "";
+      }
+    }
+  }
+  return NULL;
+}
+
+/* Deduce name of an object from slot number and PC. */
+const char *lj_debug_slotname(GCproto *pt, const BCIns *ip, BCReg slot,
+			      const char **name)
+{
+  const char *lname;
+restart:
+  lname = debug_varname(pt, proto_bcpos(pt, ip), slot);
+  if (lname != NULL) { *name = lname; return "local"; }
+  while (--ip > proto_bc(pt)) {
+    BCIns ins = *ip;
+    BCOp op = bc_op(ins);
+    BCReg ra = bc_a(ins);
+    if (bcmode_a(op) == BCMbase) {
+      if (slot >= ra && (op != BC_KNIL || slot <= bc_d(ins)))
+	return NULL;
+    } else if (bcmode_a(op) == BCMdst && ra == slot) {
+      switch (bc_op(ins)) {
+      case BC_MOV:
+	if (ra == slot) { slot = bc_d(ins); goto restart; }
+	break;
+      case BC_GGET:
+	*name = strdata(gco2str(proto_kgc(pt, ~(ptrdiff_t)bc_d(ins))));
+	return "global";
+      case BC_TGETS:
+	*name = strdata(gco2str(proto_kgc(pt, ~(ptrdiff_t)bc_c(ins))));
+	if (ip > proto_bc(pt)) {
+	  BCIns insp = ip[-1];
+	  if (bc_op(insp) == BC_MOV && bc_a(insp) == ra+1+LJ_FR2 &&
+	      bc_d(insp) == bc_b(ins))
+	    return "method";
+	}
+	return "field";
+      case BC_UGET:
+	*name = lj_debug_uvname(pt, bc_d(ins));
+	return "upvalue";
+      default:
+	return NULL;
+      }
+    }
+  }
+  return NULL;
+}
+
+/* Deduce function name from caller of a frame. */
+const char *lj_debug_funcname(lua_State *L, cTValue *frame, const char **name)
+{
+  cTValue *pframe;
+  GCfunc *fn;
+  BCPos pc;
+  if (frame <= tvref(L->stack)+LJ_FR2)
+    return NULL;
+  if (frame_isvarg(frame))
+    frame = frame_prevd(frame);
+  pframe = frame_prev(frame);
+  fn = frame_func(pframe);
+  pc = debug_framepc(L, fn, frame);
+  if (pc != NO_BCPOS) {
+    GCproto *pt = funcproto(fn);
+    const BCIns *ip = &proto_bc(pt)[check_exp(pc < pt->sizebc, pc)];
+    MMS mm = bcmode_mm(bc_op(*ip));
+    if (mm == MM_call) {
+      BCReg slot = bc_a(*ip);
+      if (bc_op(*ip) == BC_ITERC) slot -= 3;
+      return lj_debug_slotname(pt, ip, slot, name);
+    } else if (mm != MM__MAX) {
+      *name = strdata(mmname_str(G(L), mm));
+      return "metamethod";
+    }
+  }
+  return NULL;
+}
+
+/* -- Source code locations ----------------------------------------------- */
+
+/* Generate shortened source name. */
+void lj_debug_shortname(char *out, GCstr *str, BCLine line)
+{
+  const char *src = strdata(str);
+  if (*src == '=') {
+    strncpy(out, src+1, LUA_IDSIZE);  /* Remove first char. */
+    out[LUA_IDSIZE-1] = '\0';  /* Ensures null termination. */
+  } else if (*src == '@') {  /* Output "source", or "...source". */
+    size_t len = str->len-1;
+    src++;  /* Skip the `@' */
+    if (len >= LUA_IDSIZE) {
+      src += len-(LUA_IDSIZE-4);  /* Get last part of file name. */
+      *out++ = '.'; *out++ = '.'; *out++ = '.';
+    }
+    strcpy(out, src);
+  } else {  /* Output [string "string"] or [builtin:name]. */
+    size_t len;  /* Length, up to first control char. */
+    for (len = 0; len < LUA_IDSIZE-12; len++)
+      if (((const unsigned char *)src)[len] < ' ') break;
+    strcpy(out, line == ~(BCLine)0 ? "[builtin:" : "[string \""); out += 9;
+    if (src[len] != '\0') {  /* Must truncate? */
+      if (len > LUA_IDSIZE-15) len = LUA_IDSIZE-15;
+      strncpy(out, src, len); out += len;
+      strcpy(out, "..."); out += 3;
+    } else {
+      strcpy(out, src); out += len;
+    }
+    strcpy(out, line == ~(BCLine)0 ? "]" : "\"]");
+  }
+}
+
+/* Add current location of a frame to error message. */
+void lj_debug_addloc(lua_State *L, const char *msg,
+		     cTValue *frame, cTValue *nextframe)
+{
+  if (frame) {
+    GCfunc *fn = frame_func(frame);
+    if (isluafunc(fn)) {
+      BCLine line = debug_frameline(L, fn, nextframe);
+      if (line >= 0) {
+	GCproto *pt = funcproto(fn);
+	char buf[LUA_IDSIZE];
+	lj_debug_shortname(buf, proto_chunkname(pt), pt->firstline);
+	lj_strfmt_pushf(L, "%s:%d: %s", buf, line, msg);
+	return;
+      }
+    }
+  }
+  lj_strfmt_pushf(L, "%s", msg);
+}
+
+/* Push location string for a bytecode position to Lua stack. */
+void lj_debug_pushloc(lua_State *L, GCproto *pt, BCPos pc)
+{
+  GCstr *name = proto_chunkname(pt);
+  const char *s = strdata(name);
+  MSize i, len = name->len;
+  BCLine line = lj_debug_line(pt, pc);
+  if (pt->firstline == ~(BCLine)0) {
+    lj_strfmt_pushf(L, "builtin:%s", s);
+  } else if (*s == '@') {
+    s++; len--;
+    for (i = len; i > 0; i--)
+      if (s[i] == '/' || s[i] == '\\') {
+	s += i+1;
+	break;
+      }
+    lj_strfmt_pushf(L, "%s:%d", s, line);
+  } else if (len > 40) {
+    lj_strfmt_pushf(L, "%p:%d", pt, line);
+  } else if (*s == '=') {
+    lj_strfmt_pushf(L, "%s:%d", s+1, line);
+  } else {
+    lj_strfmt_pushf(L, "\"%s\":%d", s, line);
+  }
+}
+
+/* -- Public debug API ---------------------------------------------------- */
+
+/* lua_getupvalue() and lua_setupvalue() are in lj_api.c. */
+
+LUA_API const char *lua_getlocal(lua_State *L, const lua_Debug *ar, int n)
+{
+  const char *name = NULL;
+  if (ar) {
+    TValue *o = debug_localname(L, ar, &name, (BCReg)n);
+    if (name) {
+      copyTV(L, L->top, o);
+      incr_top(L);
+    }
+  } else if (tvisfunc(L->top-1) && isluafunc(funcV(L->top-1))) {
+    name = debug_varname(funcproto(funcV(L->top-1)), 0, (BCReg)n-1);
+  }
+  return name;
+}
+
+LUA_API const char *lua_setlocal(lua_State *L, const lua_Debug *ar, int n)
+{
+  const char *name = NULL;
+  TValue *o = debug_localname(L, ar, &name, (BCReg)n);
+  if (name)
+    copyTV(L, o, L->top-1);
+  L->top--;
+  return name;
+}
+
+int lj_debug_getinfo(lua_State *L, const char *what, lj_Debug *ar, int ext)
+{
+  int opt_f = 0, opt_L = 0;
+  TValue *frame = NULL;
+  TValue *nextframe = NULL;
+  GCfunc *fn;
+  if (*what == '>') {
+    TValue *func = L->top - 1;
+    if (!tvisfunc(func)) return 0;
+    fn = funcV(func);
+    L->top--;
+    what++;
+  } else {
+    uint32_t offset = (uint32_t)ar->i_ci & 0xffff;
+    uint32_t size = (uint32_t)ar->i_ci >> 16;
+    lj_assertL(offset != 0, "bad frame offset");
+    frame = tvref(L->stack) + offset;
+    if (size) nextframe = frame + size;
+    lj_assertL(frame <= tvref(L->maxstack) &&
+	       (!nextframe || nextframe <= tvref(L->maxstack)),
+	       "broken frame chain");
+    fn = frame_func(frame);
+    lj_assertL(fn->c.gct == ~LJ_TFUNC, "bad frame function");
+  }
+  for (; *what; what++) {
+    if (*what == 'S') {
+      if (isluafunc(fn)) {
+	GCproto *pt = funcproto(fn);
+	BCLine firstline = pt->firstline;
+	GCstr *name = proto_chunkname(pt);
+	ar->source = strdata(name);
+	lj_debug_shortname(ar->short_src, name, pt->firstline);
+	ar->linedefined = (int)firstline;
+	ar->lastlinedefined = (int)(firstline + pt->numline);
+	ar->what = (firstline || !pt->numline) ? "Lua" : "main";
+      } else {
+	ar->source = "=[C]";
+	ar->short_src[0] = '[';
+	ar->short_src[1] = 'C';
+	ar->short_src[2] = ']';
+	ar->short_src[3] = '\0';
+	ar->linedefined = -1;
+	ar->lastlinedefined = -1;
+	ar->what = "C";
+      }
+    } else if (*what == 'l') {
+      ar->currentline = frame ? debug_frameline(L, fn, nextframe) : -1;
+    } else if (*what == 'u') {
+      ar->nups = fn->c.nupvalues;
+      if (ext) {
+	if (isluafunc(fn)) {
+	  GCproto *pt = funcproto(fn);
+	  ar->nparams = pt->numparams;
+	  ar->isvararg = !!(pt->flags & PROTO_VARARG);
+	} else {
+	  ar->nparams = 0;
+	  ar->isvararg = 1;
+	}
+      }
+    } else if (*what == 'n') {
+      ar->namewhat = frame ? lj_debug_funcname(L, frame, &ar->name) : NULL;
+      if (ar->namewhat == NULL) {
+	ar->namewhat = "";
+	ar->name = NULL;
+      }
+    } else if (*what == 'f') {
+      opt_f = 1;
+    } else if (*what == 'L') {
+      opt_L = 1;
+    } else {
+      return 0;  /* Bad option. */
+    }
+  }
+  if (opt_f) {
+    setfuncV(L, L->top, fn);
+    incr_top(L);
+  }
+  if (opt_L) {
+    if (isluafunc(fn)) {
+      GCtab *t = lj_tab_new(L, 0, 0);
+      GCproto *pt = funcproto(fn);
+      const void *lineinfo = proto_lineinfo(pt);
+      if (lineinfo) {
+	BCLine first = pt->firstline;
+	int sz = pt->numline < 256 ? 1 : pt->numline < 65536 ? 2 : 4;
+	MSize i, szl = pt->sizebc-1;
+	for (i = 0; i < szl; i++) {
+	  BCLine line = first +
+	    (sz == 1 ? (BCLine)((const uint8_t *)lineinfo)[i] :
+	     sz == 2 ? (BCLine)((const uint16_t *)lineinfo)[i] :
+	     (BCLine)((const uint32_t *)lineinfo)[i]);
+	  setboolV(lj_tab_setint(L, t, line), 1);
+	}
+      }
+      settabV(L, L->top, t);
+    } else {
+      setnilV(L->top);
+    }
+    incr_top(L);
+  }
+  return 1;  /* Ok. */
+}
+
+LUA_API int lua_getinfo(lua_State *L, const char *what, lua_Debug *ar)
+{
+  return lj_debug_getinfo(L, what, (lj_Debug *)ar, 0);
+}
+
+LUA_API int lua_getstack(lua_State *L, int level, lua_Debug *ar)
+{
+  int size;
+  cTValue *frame = lj_debug_frame(L, level, &size);
+  if (frame) {
+    ar->i_ci = (size << 16) + (int)(frame - tvref(L->stack));
+    return 1;
+  } else {
+    ar->i_ci = level - size;
+    return 0;
+  }
+}
+
+#if LJ_HASPROFILE
+/* Put the chunkname into a buffer. */
+static int debug_putchunkname(SBuf *sb, GCproto *pt, int pathstrip)
+{
+  GCstr *name = proto_chunkname(pt);
+  const char *p = strdata(name);
+  if (pt->firstline == ~(BCLine)0) {
+    lj_buf_putmem(sb, "[builtin:", 9);
+    lj_buf_putstr(sb, name);
+    lj_buf_putb(sb, ']');
+    return 0;
+  }
+  if (*p == '=' || *p == '@') {
+    MSize len = name->len-1;
+    p++;
+    if (pathstrip) {
+      int i;
+      for (i = len-1; i >= 0; i--)
+	if (p[i] == '/' || p[i] == '\\') {
+	  len -= i+1;
+	  p = p+i+1;
+	  break;
+	}
+    }
+    lj_buf_putmem(sb, p, len);
+  } else {
+    lj_buf_putmem(sb, "[string]", 8);
+  }
+  return 1;
+}
+
+/* Put a compact stack dump into a buffer. */
+void lj_debug_dumpstack(lua_State *L, SBuf *sb, const char *fmt, int depth)
+{
+  int level = 0, dir = 1, pathstrip = 1;
+  MSize lastlen = 0;
+  if (depth < 0) { level = ~depth; depth = dir = -1; }  /* Reverse frames. */
+  while (level != depth) {  /* Loop through all frame. */
+    int size;
+    cTValue *frame = lj_debug_frame(L, level, &size);
+    if (frame) {
+      cTValue *nextframe = size ? frame+size : NULL;
+      GCfunc *fn = frame_func(frame);
+      const uint8_t *p = (const uint8_t *)fmt;
+      int c;
+      while ((c = *p++)) {
+	switch (c) {
+	case 'p':  /* Preserve full path. */
+	  pathstrip = 0;
+	  break;
+	case 'F': case 'f': {  /* Dump function name. */
+	  const char *name;
+	  const char *what = lj_debug_funcname(L, frame, &name);
+	  if (what) {
+	    if (c == 'F' && isluafunc(fn)) {  /* Dump module:name for 'F'. */
+	      GCproto *pt = funcproto(fn);
+	      if (pt->firstline != ~(BCLine)0) {  /* Not a bytecode builtin. */
+		debug_putchunkname(sb, pt, pathstrip);
+		lj_buf_putb(sb, ':');
+	      }
+	    }
+	    lj_buf_putmem(sb, name, (MSize)strlen(name));
+	    break;
+	  }  /* else: can't derive a name, dump module:line. */
+	  }
+	  /* fallthrough */
+	case 'l':  /* Dump module:line. */
+	  if (isluafunc(fn)) {
+	    GCproto *pt = funcproto(fn);
+	    if (debug_putchunkname(sb, pt, pathstrip)) {
+	      /* Regular Lua function. */
+	      BCLine line = c == 'l' ? debug_frameline(L, fn, nextframe) :
+				       pt->firstline;
+	      lj_buf_putb(sb, ':');
+	      lj_strfmt_putint(sb, line >= 0 ? line : pt->firstline);
+	    }
+	  } else if (isffunc(fn)) {  /* Dump numbered builtins. */
+	    lj_buf_putmem(sb, "[builtin#", 9);
+	    lj_strfmt_putint(sb, fn->c.ffid);
+	    lj_buf_putb(sb, ']');
+	  } else {  /* Dump C function address. */
+	    lj_buf_putb(sb, '@');
+	    lj_strfmt_putptr(sb, fn->c.f);
+	  }
+	  break;
+	case 'Z':  /* Zap trailing separator. */
+	  lastlen = sbuflen(sb);
+	  break;
+	default:
+	  lj_buf_putb(sb, c);
+	  break;
+	}
+      }
+    } else if (dir == 1) {
+      break;
+    } else {
+      level -= size;  /* Reverse frame order: quickly skip missing level. */
+    }
+    level += dir;
+  }
+  if (lastlen)
+    sb->w = sb->b + lastlen;  /* Zap trailing separator. */
+}
+#endif
+
+/* Number of frames for the leading and trailing part of a traceback. */
+#define TRACEBACK_LEVELS1	12
+#define TRACEBACK_LEVELS2	10
+
+LUALIB_API void luaL_traceback (lua_State *L, lua_State *L1, const char *msg,
+				int level)
+{
+  int top = (int)(L->top - L->base);
+  int lim = TRACEBACK_LEVELS1;
+  lua_Debug ar;
+  if (msg) lua_pushfstring(L, "%s\n", msg);
+  lua_pushliteral(L, "stack traceback:");
+  while (lua_getstack(L1, level++, &ar)) {
+    GCfunc *fn;
+    if (level > lim) {
+      if (!lua_getstack(L1, level + TRACEBACK_LEVELS2, &ar)) {
+	level--;
+      } else {
+	lua_pushliteral(L, "\n\t...");
+	lua_getstack(L1, -10, &ar);
+	level = ar.i_ci - TRACEBACK_LEVELS2;
+      }
+      lim = 2147483647;
+      continue;
+    }
+    lua_getinfo(L1, "Snlf", &ar);
+    fn = funcV(L1->top-1); L1->top--;
+    if (isffunc(fn) && !*ar.namewhat)
+      lua_pushfstring(L, "\n\t[builtin#%d]:", fn->c.ffid);
+    else
+      lua_pushfstring(L, "\n\t%s:", ar.short_src);
+    if (ar.currentline > 0)
+      lua_pushfstring(L, "%d:", ar.currentline);
+    if (*ar.namewhat) {
+      lua_pushfstring(L, " in function " LUA_QS, ar.name);
+    } else {
+      if (*ar.what == 'm') {
+	lua_pushliteral(L, " in main chunk");
+      } else if (*ar.what == 'C') {
+	lua_pushfstring(L, " at %p", fn->c.f);
+      } else {
+	lua_pushfstring(L, " in function <%s:%d>",
+			ar.short_src, ar.linedefined);
+      }
+    }
+    if ((int)(L->top - L->base) - top >= 15)
+      lua_concat(L, (int)(L->top - L->base) - top);
+  }
+  lua_concat(L, (int)(L->top - L->base) - top);
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_debug.h b/libs/luajit-cmake/luajit/src/lj_debug.h
new file mode 100644
index 0000000..28127ae
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_debug.h
@@ -0,0 +1,66 @@
+/*
+** Debugging and introspection.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_DEBUG_H
+#define _LJ_DEBUG_H
+
+#include "lj_obj.h"
+
+typedef struct lj_Debug {
+  /* Common fields. Must be in the same order as in lua.h. */
+  int event;
+  const char *name;
+  const char *namewhat;
+  const char *what;
+  const char *source;
+  int currentline;
+  int nups;
+  int linedefined;
+  int lastlinedefined;
+  char short_src[LUA_IDSIZE];
+  int i_ci;
+  /* Extended fields. Only valid if lj_debug_getinfo() is called with ext = 1.*/
+  int nparams;
+  int isvararg;
+} lj_Debug;
+
+LJ_FUNC cTValue *lj_debug_frame(lua_State *L, int level, int *size);
+LJ_FUNC BCLine LJ_FASTCALL lj_debug_line(GCproto *pt, BCPos pc);
+LJ_FUNC const char *lj_debug_uvname(GCproto *pt, uint32_t idx);
+LJ_FUNC const char *lj_debug_uvnamev(cTValue *o, uint32_t idx, TValue **tvp,
+				     GCobj **op);
+LJ_FUNC const char *lj_debug_slotname(GCproto *pt, const BCIns *pc,
+				      BCReg slot, const char **name);
+LJ_FUNC const char *lj_debug_funcname(lua_State *L, cTValue *frame,
+				      const char **name);
+LJ_FUNC void lj_debug_shortname(char *out, GCstr *str, BCLine line);
+LJ_FUNC void lj_debug_addloc(lua_State *L, const char *msg,
+			     cTValue *frame, cTValue *nextframe);
+LJ_FUNC void lj_debug_pushloc(lua_State *L, GCproto *pt, BCPos pc);
+LJ_FUNC int lj_debug_getinfo(lua_State *L, const char *what, lj_Debug *ar,
+			     int ext);
+#if LJ_HASPROFILE
+LJ_FUNC void lj_debug_dumpstack(lua_State *L, SBuf *sb, const char *fmt,
+				int depth);
+#endif
+
+/* Fixed internal variable names. */
+#define VARNAMEDEF(_) \
+  _(FOR_IDX, "(for index)") \
+  _(FOR_STOP, "(for limit)") \
+  _(FOR_STEP, "(for step)") \
+  _(FOR_GEN, "(for generator)") \
+  _(FOR_STATE, "(for state)") \
+  _(FOR_CTL, "(for control)")
+
+enum {
+  VARNAME_END,
+#define VARNAMEENUM(name, str)	VARNAME_##name,
+  VARNAMEDEF(VARNAMEENUM)
+#undef VARNAMEENUM
+  VARNAME__MAX
+};
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_def.h b/libs/luajit-cmake/luajit/src/lj_def.h
new file mode 100644
index 0000000..b61297a
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_def.h
@@ -0,0 +1,381 @@
+/*
+** LuaJIT common internal definitions.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_DEF_H
+#define _LJ_DEF_H
+
+#include "lua.h"
+
+#if defined(_MSC_VER) && (_MSC_VER < 1700)
+/* Old MSVC is stuck in the last century and doesn't have C99's stdint.h. */
+typedef __int8 int8_t;
+typedef __int16 int16_t;
+typedef __int32 int32_t;
+typedef __int64 int64_t;
+typedef unsigned __int8 uint8_t;
+typedef unsigned __int16 uint16_t;
+typedef unsigned __int32 uint32_t;
+typedef unsigned __int64 uint64_t;
+#ifdef _WIN64
+typedef __int64 intptr_t;
+typedef unsigned __int64 uintptr_t;
+#else
+typedef __int32 intptr_t;
+typedef unsigned __int32 uintptr_t;
+#endif
+#elif defined(__symbian__)
+/* Cough. */
+typedef signed char int8_t;
+typedef short int int16_t;
+typedef int int32_t;
+typedef long long int64_t;
+typedef unsigned char uint8_t;
+typedef unsigned short int uint16_t;
+typedef unsigned int uint32_t;
+typedef unsigned long long uint64_t;
+typedef int intptr_t;
+typedef unsigned int uintptr_t;
+#else
+#include <stdint.h>
+#endif
+
+/* Needed everywhere. */
+#include <string.h>
+#include <stdlib.h>
+
+/* Various VM limits. */
+#define LJ_MAX_MEM32	0x7fffff00	/* Max. 32 bit memory allocation. */
+#define LJ_MAX_MEM64	((uint64_t)1<<47)  /* Max. 64 bit memory allocation. */
+/* Max. total memory allocation. */
+#define LJ_MAX_MEM	(LJ_GC64 ? LJ_MAX_MEM64 : LJ_MAX_MEM32)
+#define LJ_MAX_ALLOC	LJ_MAX_MEM	/* Max. individual allocation length. */
+#define LJ_MAX_STR	LJ_MAX_MEM32	/* Max. string length. */
+#define LJ_MAX_BUF	LJ_MAX_MEM32	/* Max. buffer length. */
+#define LJ_MAX_UDATA	LJ_MAX_MEM32	/* Max. userdata length. */
+
+#define LJ_MAX_STRTAB	(1<<26)		/* Max. string table size. */
+#define LJ_MAX_HBITS	26		/* Max. hash bits. */
+#define LJ_MAX_ABITS	28		/* Max. bits of array key. */
+#define LJ_MAX_ASIZE	((1<<(LJ_MAX_ABITS-1))+1)  /* Max. array part size. */
+#define LJ_MAX_COLOSIZE	16		/* Max. elems for colocated array. */
+
+#define LJ_MAX_LINE	LJ_MAX_MEM32	/* Max. source code line number. */
+#define LJ_MAX_XLEVEL	200		/* Max. syntactic nesting level. */
+#define LJ_MAX_BCINS	(1<<26)		/* Max. # of bytecode instructions. */
+#define LJ_MAX_SLOTS	250		/* Max. # of slots in a Lua func. */
+#define LJ_MAX_LOCVAR	200		/* Max. # of local variables. */
+#define LJ_MAX_UPVAL	60		/* Max. # of upvalues. */
+
+#define LJ_MAX_IDXCHAIN	100		/* __index/__newindex chain limit. */
+#define LJ_STACK_EXTRA	(5+2*LJ_FR2)	/* Extra stack space (metamethods). */
+
+#define LJ_NUM_CBPAGE	1		/* Number of FFI callback pages. */
+
+/* Minimum table/buffer sizes. */
+#define LJ_MIN_GLOBAL	6		/* Min. global table size (hbits). */
+#define LJ_MIN_REGISTRY	2		/* Min. registry size (hbits). */
+#define LJ_MIN_STRTAB	256		/* Min. string table size (pow2). */
+#define LJ_MIN_SBUF	32		/* Min. string buffer length. */
+#define LJ_MIN_VECSZ	8		/* Min. size for growable vectors. */
+#define LJ_MIN_IRSZ	32		/* Min. size for growable IR. */
+
+/* JIT compiler limits. */
+#define LJ_MAX_JSLOTS	250		/* Max. # of stack slots for a trace. */
+#define LJ_MAX_PHI	64		/* Max. # of PHIs for a loop. */
+#define LJ_MAX_EXITSTUBGR	16	/* Max. # of exit stub groups. */
+
+/* Various macros. */
+#ifndef UNUSED
+#define UNUSED(x)	((void)(x))	/* to avoid warnings */
+#endif
+
+#define U64x(hi, lo)	(((uint64_t)0x##hi << 32) + (uint64_t)0x##lo)
+#define i32ptr(p)	((int32_t)(intptr_t)(void *)(p))
+#define u32ptr(p)	((uint32_t)(intptr_t)(void *)(p))
+#define i64ptr(p)	((int64_t)(intptr_t)(void *)(p))
+#define u64ptr(p)	((uint64_t)(intptr_t)(void *)(p))
+#define igcptr(p)	(LJ_GC64 ? i64ptr(p) : i32ptr(p))
+
+#define checki8(x)	((x) == (int32_t)(int8_t)(x))
+#define checku8(x)	((x) == (int32_t)(uint8_t)(x))
+#define checki16(x)	((x) == (int32_t)(int16_t)(x))
+#define checku16(x)	((x) == (int32_t)(uint16_t)(x))
+#define checki32(x)	((x) == (int32_t)(x))
+#define checku32(x)	((x) == (uint32_t)(x))
+#define checkptr31(x)	(((uint64_t)(uintptr_t)(x) >> 31) == 0)
+#define checkptr32(x)	((uintptr_t)(x) == (uint32_t)(uintptr_t)(x))
+#define checkptr47(x)	(((uint64_t)(uintptr_t)(x) >> 47) == 0)
+#define checkptrGC(x)	(LJ_GC64 ? checkptr47((x)) : LJ_64 ? checkptr31((x)) :1)
+
+/* Every half-decent C compiler transforms this into a rotate instruction. */
+#define lj_rol(x, n)	(((x)<<(n)) | ((x)>>(-(int)(n)&(8*sizeof(x)-1))))
+#define lj_ror(x, n)	(((x)<<(-(int)(n)&(8*sizeof(x)-1))) | ((x)>>(n)))
+
+/* A really naive Bloom filter. But sufficient for our needs. */
+typedef uintptr_t BloomFilter;
+#define BLOOM_MASK	(8*sizeof(BloomFilter) - 1)
+#define bloombit(x)	((uintptr_t)1 << ((x) & BLOOM_MASK))
+#define bloomset(b, x)	((b) |= bloombit((x)))
+#define bloomtest(b, x)	((b) & bloombit((x)))
+
+#if defined(__GNUC__) || defined(__clang__) || defined(__psp2__)
+
+#define LJ_NORET	__attribute__((noreturn))
+#define LJ_ALIGN(n)	__attribute__((aligned(n)))
+#define LJ_INLINE	inline
+#define LJ_AINLINE	inline __attribute__((always_inline))
+#define LJ_NOINLINE	__attribute__((noinline))
+
+#if defined(__ELF__) || defined(__MACH__) || defined(__psp2__)
+#if !((defined(__sun__) && defined(__svr4__)) || defined(__CELLOS_LV2__))
+#define LJ_NOAPI	extern __attribute__((visibility("hidden")))
+#endif
+#endif
+
+/* Note: it's only beneficial to use fastcall on x86 and then only for up to
+** two non-FP args. The amalgamated compile covers all LJ_FUNC cases. Only
+** indirect calls and related tail-called C functions are marked as fastcall.
+*/
+#if defined(__i386__)
+#define LJ_FASTCALL	__attribute__((fastcall))
+#endif
+
+#define LJ_LIKELY(x)	__builtin_expect(!!(x), 1)
+#define LJ_UNLIKELY(x)	__builtin_expect(!!(x), 0)
+
+#define lj_ffs(x)	((uint32_t)__builtin_ctz(x))
+/* Don't ask ... */
+#if defined(__INTEL_COMPILER) && (defined(__i386__) || defined(__x86_64__))
+static LJ_AINLINE uint32_t lj_fls(uint32_t x)
+{
+  uint32_t r; __asm__("bsrl %1, %0" : "=r" (r) : "rm" (x) : "cc"); return r;
+}
+#else
+#define lj_fls(x)	((uint32_t)(__builtin_clz(x)^31))
+#endif
+
+#if defined(__arm__)
+static LJ_AINLINE uint32_t lj_bswap(uint32_t x)
+{
+#if defined(__psp2__)
+  return __builtin_rev(x);
+#else
+  uint32_t r;
+#if __ARM_ARCH_6__ || __ARM_ARCH_6J__ || __ARM_ARCH_6T2__ || __ARM_ARCH_6Z__ ||\
+    __ARM_ARCH_6ZK__ || __ARM_ARCH_7__ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__
+  __asm__("rev %0, %1" : "=r" (r) : "r" (x));
+  return r;
+#else
+#ifdef __thumb__
+  r = x ^ lj_ror(x, 16);
+#else
+  __asm__("eor %0, %1, %1, ror #16" : "=r" (r) : "r" (x));
+#endif
+  return ((r & 0xff00ffffu) >> 8) ^ lj_ror(x, 8);
+#endif
+#endif
+}
+
+static LJ_AINLINE uint64_t lj_bswap64(uint64_t x)
+{
+  return ((uint64_t)lj_bswap((uint32_t)x)<<32) | lj_bswap((uint32_t)(x>>32));
+}
+#elif (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __clang__
+static LJ_AINLINE uint32_t lj_bswap(uint32_t x)
+{
+  return (uint32_t)__builtin_bswap32((int32_t)x);
+}
+
+static LJ_AINLINE uint64_t lj_bswap64(uint64_t x)
+{
+  return (uint64_t)__builtin_bswap64((int64_t)x);
+}
+#elif defined(__i386__) || defined(__x86_64__)
+static LJ_AINLINE uint32_t lj_bswap(uint32_t x)
+{
+  uint32_t r; __asm__("bswap %0" : "=r" (r) : "0" (x)); return r;
+}
+
+#if defined(__i386__)
+static LJ_AINLINE uint64_t lj_bswap64(uint64_t x)
+{
+  return ((uint64_t)lj_bswap((uint32_t)x)<<32) | lj_bswap((uint32_t)(x>>32));
+}
+#else
+static LJ_AINLINE uint64_t lj_bswap64(uint64_t x)
+{
+  uint64_t r; __asm__("bswap %0" : "=r" (r) : "0" (x)); return r;
+}
+#endif
+#else
+static LJ_AINLINE uint32_t lj_bswap(uint32_t x)
+{
+  return (x << 24) | ((x & 0xff00) << 8) | ((x >> 8) & 0xff00) | (x >> 24);
+}
+
+static LJ_AINLINE uint64_t lj_bswap64(uint64_t x)
+{
+  return (uint64_t)lj_bswap((uint32_t)(x >> 32)) |
+	 ((uint64_t)lj_bswap((uint32_t)x) << 32);
+}
+#endif
+
+typedef union __attribute__((packed)) Unaligned16 {
+  uint16_t u;
+  uint8_t b[2];
+} Unaligned16;
+
+typedef union __attribute__((packed)) Unaligned32 {
+  uint32_t u;
+  uint8_t b[4];
+} Unaligned32;
+
+/* Unaligned load of uint16_t. */
+static LJ_AINLINE uint16_t lj_getu16(const void *p)
+{
+  return ((const Unaligned16 *)p)->u;
+}
+
+/* Unaligned load of uint32_t. */
+static LJ_AINLINE uint32_t lj_getu32(const void *p)
+{
+  return ((const Unaligned32 *)p)->u;
+}
+
+#elif defined(_MSC_VER)
+
+#define LJ_NORET	__declspec(noreturn)
+#define LJ_ALIGN(n)	__declspec(align(n))
+#define LJ_INLINE	__inline
+#define LJ_AINLINE	__forceinline
+#define LJ_NOINLINE	__declspec(noinline)
+#if defined(_M_IX86)
+#define LJ_FASTCALL	__fastcall
+#endif
+
+#ifdef _M_PPC
+unsigned int _CountLeadingZeros(long);
+#pragma intrinsic(_CountLeadingZeros)
+static LJ_AINLINE uint32_t lj_fls(uint32_t x)
+{
+  return _CountLeadingZeros(x) ^ 31;
+}
+#else
+unsigned char _BitScanForward(unsigned long *, unsigned long);
+unsigned char _BitScanReverse(unsigned long *, unsigned long);
+#pragma intrinsic(_BitScanForward)
+#pragma intrinsic(_BitScanReverse)
+
+static LJ_AINLINE uint32_t lj_ffs(uint32_t x)
+{
+  unsigned long r; _BitScanForward(&r, x); return (uint32_t)r;
+}
+
+static LJ_AINLINE uint32_t lj_fls(uint32_t x)
+{
+  unsigned long r; _BitScanReverse(&r, x); return (uint32_t)r;
+}
+#endif
+
+unsigned long _byteswap_ulong(unsigned long);
+uint64_t _byteswap_uint64(uint64_t);
+#define lj_bswap(x)	(_byteswap_ulong((x)))
+#define lj_bswap64(x)	(_byteswap_uint64((x)))
+
+#if defined(_M_PPC) && defined(LUAJIT_NO_UNALIGNED)
+/*
+** Replacement for unaligned loads on Xbox 360. Disabled by default since it's
+** usually more costly than the occasional stall when crossing a cache-line.
+*/
+static LJ_AINLINE uint16_t lj_getu16(const void *v)
+{
+  const uint8_t *p = (const uint8_t *)v;
+  return (uint16_t)((p[0]<<8) | p[1]);
+}
+static LJ_AINLINE uint32_t lj_getu32(const void *v)
+{
+  const uint8_t *p = (const uint8_t *)v;
+  return (uint32_t)((p[0]<<24) | (p[1]<<16) | (p[2]<<8) | p[3]);
+}
+#else
+/* Unaligned loads are generally ok on x86/x64. */
+#define lj_getu16(p)	(*(uint16_t *)(p))
+#define lj_getu32(p)	(*(uint32_t *)(p))
+#endif
+
+#else
+#error "missing defines for your compiler"
+#endif
+
+/* Optional defines. */
+#ifndef LJ_FASTCALL
+#define LJ_FASTCALL
+#endif
+#ifndef LJ_NORET
+#define LJ_NORET
+#endif
+#ifndef LJ_NOAPI
+#define LJ_NOAPI	extern
+#endif
+#ifndef LJ_LIKELY
+#define LJ_LIKELY(x)	(x)
+#define LJ_UNLIKELY(x)	(x)
+#endif
+
+/* Attributes for internal functions. */
+#define LJ_DATA		LJ_NOAPI
+#define LJ_DATADEF
+#define LJ_ASMF		LJ_NOAPI
+#define LJ_FUNCA	LJ_NOAPI
+#if defined(ljamalg_c)
+#define LJ_FUNC		static
+#else
+#define LJ_FUNC		LJ_NOAPI
+#endif
+#define LJ_FUNC_NORET	LJ_FUNC LJ_NORET
+#define LJ_FUNCA_NORET	LJ_FUNCA LJ_NORET
+#define LJ_ASMF_NORET	LJ_ASMF LJ_NORET
+
+/* Internal assertions. */
+#if defined(LUA_USE_ASSERT) || defined(LUA_USE_APICHECK)
+#define lj_assert_check(g, c, ...) \
+  ((c) ? (void)0 : \
+   (lj_assert_fail((g), __FILE__, __LINE__, __func__, __VA_ARGS__), 0))
+#define lj_checkapi(c, ...)	lj_assert_check(G(L), (c), __VA_ARGS__)
+#else
+#define lj_checkapi(c, ...)	((void)L)
+#endif
+
+#ifdef LUA_USE_ASSERT
+#define lj_assertG_(g, c, ...)	lj_assert_check((g), (c), __VA_ARGS__)
+#define lj_assertG(c, ...)	lj_assert_check(g, (c), __VA_ARGS__)
+#define lj_assertL(c, ...)	lj_assert_check(G(L), (c), __VA_ARGS__)
+#define lj_assertX(c, ...)	lj_assert_check(NULL, (c), __VA_ARGS__)
+#define check_exp(c, e)		(lj_assertX((c), #c), (e))
+#else
+#define lj_assertG_(g, c, ...)	((void)0)
+#define lj_assertG(c, ...)	((void)g)
+#define lj_assertL(c, ...)	((void)L)
+#define lj_assertX(c, ...)	((void)0)
+#define check_exp(c, e)		(e)
+#endif
+
+/* Static assertions. */
+#define LJ_ASSERT_NAME2(name, line)	name ## line
+#define LJ_ASSERT_NAME(line)		LJ_ASSERT_NAME2(lj_assert_, line)
+#ifdef __COUNTER__
+#define LJ_STATIC_ASSERT(cond) \
+  extern void LJ_ASSERT_NAME(__COUNTER__)(int STATIC_ASSERTION_FAILED[(cond)?1:-1])
+#else
+#define LJ_STATIC_ASSERT(cond) \
+  extern void LJ_ASSERT_NAME(__LINE__)(int STATIC_ASSERTION_FAILED[(cond)?1:-1])
+#endif
+
+/* PRNG state. Need this here, details in lj_prng.h. */
+typedef struct PRNGState {
+  uint64_t u[4];
+} PRNGState;
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_dispatch.c b/libs/luajit-cmake/luajit/src/lj_dispatch.c
new file mode 100644
index 0000000..ded382a
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_dispatch.c
@@ -0,0 +1,559 @@
+/*
+** Instruction dispatch handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_dispatch_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_func.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_meta.h"
+#include "lj_debug.h"
+#include "lj_state.h"
+#include "lj_frame.h"
+#include "lj_bc.h"
+#include "lj_ff.h"
+#include "lj_strfmt.h"
+#if LJ_HASJIT
+#include "lj_jit.h"
+#endif
+#if LJ_HASFFI
+#include "lj_ccallback.h"
+#endif
+#include "lj_trace.h"
+#include "lj_dispatch.h"
+#if LJ_HASPROFILE
+#include "lj_profile.h"
+#endif
+#include "lj_vm.h"
+#include "luajit.h"
+
+/* Bump GG_NUM_ASMFF in lj_dispatch.h as needed. Ugly. */
+LJ_STATIC_ASSERT(GG_NUM_ASMFF == FF_NUM_ASMFUNC);
+
+/* -- Dispatch table management ------------------------------------------- */
+
+#if LJ_TARGET_MIPS
+#include <math.h>
+LJ_FUNCA_NORET void LJ_FASTCALL lj_ffh_coroutine_wrap_err(lua_State *L,
+							  lua_State *co);
+#if !LJ_HASJIT
+#define lj_dispatch_stitch	lj_dispatch_ins
+#endif
+#if !LJ_HASPROFILE
+#define lj_dispatch_profile	lj_dispatch_ins
+#endif
+
+#define GOTFUNC(name)	(ASMFunction)name,
+static const ASMFunction dispatch_got[] = {
+  GOTDEF(GOTFUNC)
+};
+#undef GOTFUNC
+#endif
+
+/* Initialize instruction dispatch table and hot counters. */
+void lj_dispatch_init(GG_State *GG)
+{
+  uint32_t i;
+  ASMFunction *disp = GG->dispatch;
+  for (i = 0; i < GG_LEN_SDISP; i++)
+    disp[GG_LEN_DDISP+i] = disp[i] = makeasmfunc(lj_bc_ofs[i]);
+  for (i = GG_LEN_SDISP; i < GG_LEN_DDISP; i++)
+    disp[i] = makeasmfunc(lj_bc_ofs[i]);
+  /* The JIT engine is off by default. luaopen_jit() turns it on. */
+  disp[BC_FORL] = disp[BC_IFORL];
+  disp[BC_ITERL] = disp[BC_IITERL];
+  /* Workaround for stable v2.1 bytecode. TODO: Replace with BC_IITERN. */
+  disp[BC_ITERN] = &lj_vm_IITERN;
+  disp[BC_LOOP] = disp[BC_ILOOP];
+  disp[BC_FUNCF] = disp[BC_IFUNCF];
+  disp[BC_FUNCV] = disp[BC_IFUNCV];
+  GG->g.bc_cfunc_ext = GG->g.bc_cfunc_int = BCINS_AD(BC_FUNCC, LUA_MINSTACK, 0);
+  for (i = 0; i < GG_NUM_ASMFF; i++)
+    GG->bcff[i] = BCINS_AD(BC__MAX+i, 0, 0);
+#if LJ_TARGET_MIPS
+  memcpy(GG->got, dispatch_got, LJ_GOT__MAX*sizeof(ASMFunction *));
+#endif
+}
+
+#if LJ_HASJIT
+/* Initialize hotcount table. */
+void lj_dispatch_init_hotcount(global_State *g)
+{
+  int32_t hotloop = G2J(g)->param[JIT_P_hotloop];
+  HotCount start = (HotCount)(hotloop*HOTCOUNT_LOOP - 1);
+  HotCount *hotcount = G2GG(g)->hotcount;
+  uint32_t i;
+  for (i = 0; i < HOTCOUNT_SIZE; i++)
+    hotcount[i] = start;
+}
+#endif
+
+/* Internal dispatch mode bits. */
+#define DISPMODE_CALL	0x01	/* Override call dispatch. */
+#define DISPMODE_RET	0x02	/* Override return dispatch. */
+#define DISPMODE_INS	0x04	/* Override instruction dispatch. */
+#define DISPMODE_JIT	0x10	/* JIT compiler on. */
+#define DISPMODE_REC	0x20	/* Recording active. */
+#define DISPMODE_PROF	0x40	/* Profiling active. */
+
+/* Update dispatch table depending on various flags. */
+void lj_dispatch_update(global_State *g)
+{
+  uint8_t oldmode = g->dispatchmode;
+  uint8_t mode = 0;
+#if LJ_HASJIT
+  mode |= (G2J(g)->flags & JIT_F_ON) ? DISPMODE_JIT : 0;
+  mode |= G2J(g)->state != LJ_TRACE_IDLE ?
+	    (DISPMODE_REC|DISPMODE_INS|DISPMODE_CALL) : 0;
+#endif
+#if LJ_HASPROFILE
+  mode |= (g->hookmask & HOOK_PROFILE) ? (DISPMODE_PROF|DISPMODE_INS) : 0;
+#endif
+  mode |= (g->hookmask & (LUA_MASKLINE|LUA_MASKCOUNT)) ? DISPMODE_INS : 0;
+  mode |= (g->hookmask & LUA_MASKCALL) ? DISPMODE_CALL : 0;
+  mode |= (g->hookmask & LUA_MASKRET) ? DISPMODE_RET : 0;
+  if (oldmode != mode) {  /* Mode changed? */
+    ASMFunction *disp = G2GG(g)->dispatch;
+    ASMFunction f_forl, f_iterl, f_itern, f_loop, f_funcf, f_funcv;
+    g->dispatchmode = mode;
+
+    /* Hotcount if JIT is on, but not while recording. */
+    if ((mode & (DISPMODE_JIT|DISPMODE_REC)) == DISPMODE_JIT) {
+      f_forl = makeasmfunc(lj_bc_ofs[BC_FORL]);
+      f_iterl = makeasmfunc(lj_bc_ofs[BC_ITERL]);
+      f_itern = makeasmfunc(lj_bc_ofs[BC_ITERN]);
+      f_loop = makeasmfunc(lj_bc_ofs[BC_LOOP]);
+      f_funcf = makeasmfunc(lj_bc_ofs[BC_FUNCF]);
+      f_funcv = makeasmfunc(lj_bc_ofs[BC_FUNCV]);
+    } else {  /* Otherwise use the non-hotcounting instructions. */
+      f_forl = disp[GG_LEN_DDISP+BC_IFORL];
+      f_iterl = disp[GG_LEN_DDISP+BC_IITERL];
+      f_itern = &lj_vm_IITERN;
+      f_loop = disp[GG_LEN_DDISP+BC_ILOOP];
+      f_funcf = makeasmfunc(lj_bc_ofs[BC_IFUNCF]);
+      f_funcv = makeasmfunc(lj_bc_ofs[BC_IFUNCV]);
+    }
+    /* Init static counting instruction dispatch first (may be copied below). */
+    disp[GG_LEN_DDISP+BC_FORL] = f_forl;
+    disp[GG_LEN_DDISP+BC_ITERL] = f_iterl;
+    disp[GG_LEN_DDISP+BC_ITERN] = f_itern;
+    disp[GG_LEN_DDISP+BC_LOOP] = f_loop;
+
+    /* Set dynamic instruction dispatch. */
+    if ((oldmode ^ mode) & (DISPMODE_PROF|DISPMODE_REC|DISPMODE_INS)) {
+      /* Need to update the whole table. */
+      if (!(mode & DISPMODE_INS)) {  /* No ins dispatch? */
+	/* Copy static dispatch table to dynamic dispatch table. */
+	memcpy(&disp[0], &disp[GG_LEN_DDISP], GG_LEN_SDISP*sizeof(ASMFunction));
+	/* Overwrite with dynamic return dispatch. */
+	if ((mode & DISPMODE_RET)) {
+	  disp[BC_RETM] = lj_vm_rethook;
+	  disp[BC_RET] = lj_vm_rethook;
+	  disp[BC_RET0] = lj_vm_rethook;
+	  disp[BC_RET1] = lj_vm_rethook;
+	}
+      } else {
+	/* The recording dispatch also checks for hooks. */
+	ASMFunction f = (mode & DISPMODE_PROF) ? lj_vm_profhook :
+			(mode & DISPMODE_REC) ? lj_vm_record : lj_vm_inshook;
+	uint32_t i;
+	for (i = 0; i < GG_LEN_SDISP; i++)
+	  disp[i] = f;
+      }
+    } else if (!(mode & DISPMODE_INS)) {
+      /* Otherwise set dynamic counting ins. */
+      disp[BC_FORL] = f_forl;
+      disp[BC_ITERL] = f_iterl;
+      disp[BC_ITERN] = f_itern;
+      disp[BC_LOOP] = f_loop;
+      /* Set dynamic return dispatch. */
+      if ((mode & DISPMODE_RET)) {
+	disp[BC_RETM] = lj_vm_rethook;
+	disp[BC_RET] = lj_vm_rethook;
+	disp[BC_RET0] = lj_vm_rethook;
+	disp[BC_RET1] = lj_vm_rethook;
+      } else {
+	disp[BC_RETM] = disp[GG_LEN_DDISP+BC_RETM];
+	disp[BC_RET] = disp[GG_LEN_DDISP+BC_RET];
+	disp[BC_RET0] = disp[GG_LEN_DDISP+BC_RET0];
+	disp[BC_RET1] = disp[GG_LEN_DDISP+BC_RET1];
+      }
+    }
+
+    /* Set dynamic call dispatch. */
+    if ((oldmode ^ mode) & DISPMODE_CALL) {  /* Update the whole table? */
+      uint32_t i;
+      if ((mode & DISPMODE_CALL) == 0) {  /* No call hooks? */
+	for (i = GG_LEN_SDISP; i < GG_LEN_DDISP; i++)
+	  disp[i] = makeasmfunc(lj_bc_ofs[i]);
+      } else {
+	for (i = GG_LEN_SDISP; i < GG_LEN_DDISP; i++)
+	  disp[i] = lj_vm_callhook;
+      }
+    }
+    if (!(mode & DISPMODE_CALL)) {  /* Overwrite dynamic counting ins. */
+      disp[BC_FUNCF] = f_funcf;
+      disp[BC_FUNCV] = f_funcv;
+    }
+
+#if LJ_HASJIT
+    /* Reset hotcounts for JIT off to on transition. */
+    if ((mode & DISPMODE_JIT) && !(oldmode & DISPMODE_JIT))
+      lj_dispatch_init_hotcount(g);
+#endif
+  }
+}
+
+/* -- JIT mode setting ---------------------------------------------------- */
+
+#if LJ_HASJIT
+/* Set JIT mode for a single prototype. */
+static void setptmode(global_State *g, GCproto *pt, int mode)
+{
+  if ((mode & LUAJIT_MODE_ON)) {  /* (Re-)enable JIT compilation. */
+    pt->flags &= ~PROTO_NOJIT;
+    lj_trace_reenableproto(pt);  /* Unpatch all ILOOP etc. bytecodes. */
+  } else {  /* Flush and/or disable JIT compilation. */
+    if (!(mode & LUAJIT_MODE_FLUSH))
+      pt->flags |= PROTO_NOJIT;
+    lj_trace_flushproto(g, pt);  /* Flush all traces of prototype. */
+  }
+}
+
+/* Recursively set the JIT mode for all children of a prototype. */
+static void setptmode_all(global_State *g, GCproto *pt, int mode)
+{
+  ptrdiff_t i;
+  if (!(pt->flags & PROTO_CHILD)) return;
+  for (i = -(ptrdiff_t)pt->sizekgc; i < 0; i++) {
+    GCobj *o = proto_kgc(pt, i);
+    if (o->gch.gct == ~LJ_TPROTO) {
+      setptmode(g, gco2pt(o), mode);
+      setptmode_all(g, gco2pt(o), mode);
+    }
+  }
+}
+#endif
+
+/* Public API function: control the JIT engine. */
+int luaJIT_setmode(lua_State *L, int idx, int mode)
+{
+  global_State *g = G(L);
+  int mm = mode & LUAJIT_MODE_MASK;
+  lj_trace_abort(g);  /* Abort recording on any state change. */
+  /* Avoid pulling the rug from under our own feet. */
+  if ((g->hookmask & HOOK_GC))
+    lj_err_caller(L, LJ_ERR_NOGCMM);
+  switch (mm) {
+#if LJ_HASJIT
+  case LUAJIT_MODE_ENGINE:
+    if ((mode & LUAJIT_MODE_FLUSH)) {
+      lj_trace_flushall(L);
+    } else {
+      if (!(mode & LUAJIT_MODE_ON))
+	G2J(g)->flags &= ~(uint32_t)JIT_F_ON;
+      else
+	G2J(g)->flags |= (uint32_t)JIT_F_ON;
+      lj_dispatch_update(g);
+    }
+    break;
+  case LUAJIT_MODE_FUNC:
+  case LUAJIT_MODE_ALLFUNC:
+  case LUAJIT_MODE_ALLSUBFUNC: {
+    cTValue *tv = idx == 0 ? frame_prev(L->base-1)-LJ_FR2 :
+		  idx > 0 ? L->base + (idx-1) : L->top + idx;
+    GCproto *pt;
+    if ((idx == 0 || tvisfunc(tv)) && isluafunc(&gcval(tv)->fn))
+      pt = funcproto(&gcval(tv)->fn);  /* Cannot use funcV() for frame slot. */
+    else if (tvisproto(tv))
+      pt = protoV(tv);
+    else
+      return 0;  /* Failed. */
+    if (mm != LUAJIT_MODE_ALLSUBFUNC)
+      setptmode(g, pt, mode);
+    if (mm != LUAJIT_MODE_FUNC)
+      setptmode_all(g, pt, mode);
+    break;
+    }
+  case LUAJIT_MODE_TRACE:
+    if (!(mode & LUAJIT_MODE_FLUSH))
+      return 0;  /* Failed. */
+    lj_trace_flush(G2J(g), idx);
+    break;
+#else
+  case LUAJIT_MODE_ENGINE:
+  case LUAJIT_MODE_FUNC:
+  case LUAJIT_MODE_ALLFUNC:
+  case LUAJIT_MODE_ALLSUBFUNC:
+    UNUSED(idx);
+    if ((mode & LUAJIT_MODE_ON))
+      return 0;  /* Failed. */
+    break;
+#endif
+  case LUAJIT_MODE_WRAPCFUNC:
+    if ((mode & LUAJIT_MODE_ON)) {
+      if (idx != 0) {
+	cTValue *tv = idx > 0 ? L->base + (idx-1) : L->top + idx;
+	if (tvislightud(tv))
+	  g->wrapf = (lua_CFunction)lightudV(g, tv);
+	else
+	  return 0;  /* Failed. */
+      } else {
+	return 0;  /* Failed. */
+      }
+      g->bc_cfunc_ext = BCINS_AD(BC_FUNCCW, 0, 0);
+    } else {
+      g->bc_cfunc_ext = BCINS_AD(BC_FUNCC, 0, 0);
+    }
+    break;
+  default:
+    return 0;  /* Failed. */
+  }
+  return 1;  /* OK. */
+}
+
+/* Enforce (dynamic) linker error for version mismatches. See luajit.c. */
+LUA_API void LUAJIT_VERSION_SYM(void)
+{
+}
+
+/* -- Hooks --------------------------------------------------------------- */
+
+/* This function can be called asynchronously (e.g. during a signal). */
+LUA_API int lua_sethook(lua_State *L, lua_Hook func, int mask, int count)
+{
+  global_State *g = G(L);
+  mask &= HOOK_EVENTMASK;
+  if (func == NULL || mask == 0) { mask = 0; func = NULL; }  /* Consistency. */
+  g->hookf = func;
+  g->hookcount = g->hookcstart = (int32_t)count;
+  g->hookmask = (uint8_t)((g->hookmask & ~HOOK_EVENTMASK) | mask);
+  lj_trace_abort(g);  /* Abort recording on any hook change. */
+  lj_dispatch_update(g);
+  return 1;
+}
+
+LUA_API lua_Hook lua_gethook(lua_State *L)
+{
+  return G(L)->hookf;
+}
+
+LUA_API int lua_gethookmask(lua_State *L)
+{
+  return G(L)->hookmask & HOOK_EVENTMASK;
+}
+
+LUA_API int lua_gethookcount(lua_State *L)
+{
+  return (int)G(L)->hookcstart;
+}
+
+/* Call a hook. */
+static void callhook(lua_State *L, int event, BCLine line)
+{
+  global_State *g = G(L);
+  lua_Hook hookf = g->hookf;
+  if (hookf && !hook_active(g)) {
+    lua_Debug ar;
+    lj_trace_abort(g);  /* Abort recording on any hook call. */
+    ar.event = event;
+    ar.currentline = line;
+    /* Top frame, nextframe = NULL. */
+    ar.i_ci = (int)((L->base-1) - tvref(L->stack));
+    lj_state_checkstack(L, 1+LUA_MINSTACK);
+#if LJ_HASPROFILE && !LJ_PROFILE_SIGPROF
+    lj_profile_hook_enter(g);
+#else
+    hook_enter(g);
+#endif
+    hookf(L, &ar);
+    lj_assertG(hook_active(g), "active hook flag removed");
+    setgcref(g->cur_L, obj2gco(L));
+#if LJ_HASPROFILE && !LJ_PROFILE_SIGPROF
+    lj_profile_hook_leave(g);
+#else
+    hook_leave(g);
+#endif
+  }
+}
+
+/* -- Dispatch callbacks -------------------------------------------------- */
+
+/* Calculate number of used stack slots in the current frame. */
+static BCReg cur_topslot(GCproto *pt, const BCIns *pc, uint32_t nres)
+{
+  BCIns ins = pc[-1];
+  if (bc_op(ins) == BC_UCLO)
+    ins = pc[bc_j(ins)];
+  switch (bc_op(ins)) {
+  case BC_CALLM: case BC_CALLMT: return bc_a(ins) + bc_c(ins) + nres-1+1+LJ_FR2;
+  case BC_RETM: return bc_a(ins) + bc_d(ins) + nres-1;
+  case BC_TSETM: return bc_a(ins) + nres-1;
+  default: return pt->framesize;
+  }
+}
+
+/* Instruction dispatch. Used by instr/line/return hooks or when recording. */
+void LJ_FASTCALL lj_dispatch_ins(lua_State *L, const BCIns *pc)
+{
+  ERRNO_SAVE
+  GCfunc *fn = curr_func(L);
+  GCproto *pt = funcproto(fn);
+  void *cf = cframe_raw(L->cframe);
+  const BCIns *oldpc = cframe_pc(cf);
+  global_State *g = G(L);
+  BCReg slots;
+  setcframe_pc(cf, pc);
+  slots = cur_topslot(pt, pc, cframe_multres_n(cf));
+  L->top = L->base + slots;  /* Fix top. */
+#if LJ_HASJIT
+  {
+    jit_State *J = G2J(g);
+    if (J->state != LJ_TRACE_IDLE) {
+#ifdef LUA_USE_ASSERT
+      ptrdiff_t delta = L->top - L->base;
+#endif
+      J->L = L;
+      lj_trace_ins(J, pc-1);  /* The interpreter bytecode PC is offset by 1. */
+      lj_assertG(L->top - L->base == delta,
+		 "unbalanced stack after tracing of instruction");
+    }
+  }
+#endif
+  if ((g->hookmask & LUA_MASKCOUNT) && g->hookcount == 0) {
+    g->hookcount = g->hookcstart;
+    callhook(L, LUA_HOOKCOUNT, -1);
+    L->top = L->base + slots;  /* Fix top again. */
+  }
+  if ((g->hookmask & LUA_MASKLINE)) {
+    BCPos npc = proto_bcpos(pt, pc) - 1;
+    BCPos opc = proto_bcpos(pt, oldpc) - 1;
+    BCLine line = lj_debug_line(pt, npc);
+    if (pc <= oldpc || opc >= pt->sizebc || line != lj_debug_line(pt, opc)) {
+      callhook(L, LUA_HOOKLINE, line);
+      L->top = L->base + slots;  /* Fix top again. */
+    }
+  }
+  if ((g->hookmask & LUA_MASKRET) && bc_isret(bc_op(pc[-1])))
+    callhook(L, LUA_HOOKRET, -1);
+  ERRNO_RESTORE
+}
+
+/* Initialize call. Ensure stack space and return # of missing parameters. */
+static int call_init(lua_State *L, GCfunc *fn)
+{
+  if (isluafunc(fn)) {
+    GCproto *pt = funcproto(fn);
+    int numparams = pt->numparams;
+    int gotparams = (int)(L->top - L->base);
+    int need = pt->framesize;
+    if ((pt->flags & PROTO_VARARG)) need += 1+gotparams;
+    lj_state_checkstack(L, (MSize)need);
+    numparams -= gotparams;
+    return numparams >= 0 ? numparams : 0;
+  } else {
+    lj_state_checkstack(L, LUA_MINSTACK);
+    return 0;
+  }
+}
+
+/* Call dispatch. Used by call hooks, hot calls or when recording. */
+ASMFunction LJ_FASTCALL lj_dispatch_call(lua_State *L, const BCIns *pc)
+{
+  ERRNO_SAVE
+  GCfunc *fn = curr_func(L);
+  BCOp op;
+  global_State *g = G(L);
+#if LJ_HASJIT
+  jit_State *J = G2J(g);
+#endif
+  int missing = call_init(L, fn);
+#if LJ_HASJIT
+  J->L = L;
+  if ((uintptr_t)pc & 1) {  /* Marker for hot call. */
+#ifdef LUA_USE_ASSERT
+    ptrdiff_t delta = L->top - L->base;
+#endif
+    pc = (const BCIns *)((uintptr_t)pc & ~(uintptr_t)1);
+    lj_trace_hot(J, pc);
+    lj_assertG(L->top - L->base == delta,
+	       "unbalanced stack after hot call");
+    goto out;
+  } else if (J->state != LJ_TRACE_IDLE &&
+	     !(g->hookmask & (HOOK_GC|HOOK_VMEVENT))) {
+#ifdef LUA_USE_ASSERT
+    ptrdiff_t delta = L->top - L->base;
+#endif
+    /* Record the FUNC* bytecodes, too. */
+    lj_trace_ins(J, pc-1);  /* The interpreter bytecode PC is offset by 1. */
+    lj_assertG(L->top - L->base == delta,
+	       "unbalanced stack after hot instruction");
+  }
+#endif
+  if ((g->hookmask & LUA_MASKCALL)) {
+    int i;
+    for (i = 0; i < missing; i++)  /* Add missing parameters. */
+      setnilV(L->top++);
+    callhook(L, LUA_HOOKCALL, -1);
+    /* Preserve modifications of missing parameters by lua_setlocal(). */
+    while (missing-- > 0 && tvisnil(L->top - 1))
+      L->top--;
+  }
+#if LJ_HASJIT
+out:
+#endif
+  op = bc_op(pc[-1]);  /* Get FUNC* op. */
+#if LJ_HASJIT
+  /* Use the non-hotcounting variants if JIT is off or while recording. */
+  if ((!(J->flags & JIT_F_ON) || J->state != LJ_TRACE_IDLE) &&
+      (op == BC_FUNCF || op == BC_FUNCV))
+    op = (BCOp)((int)op+(int)BC_IFUNCF-(int)BC_FUNCF);
+#endif
+  ERRNO_RESTORE
+  return makeasmfunc(lj_bc_ofs[op]);  /* Return static dispatch target. */
+}
+
+#if LJ_HASJIT
+/* Stitch a new trace. */
+void LJ_FASTCALL lj_dispatch_stitch(jit_State *J, const BCIns *pc)
+{
+  ERRNO_SAVE
+  lua_State *L = J->L;
+  void *cf = cframe_raw(L->cframe);
+  const BCIns *oldpc = cframe_pc(cf);
+  setcframe_pc(cf, pc);
+  /* Before dispatch, have to bias PC by 1. */
+  L->top = L->base + cur_topslot(curr_proto(L), pc+1, cframe_multres_n(cf));
+  lj_trace_stitch(J, pc-1);  /* Point to the CALL instruction. */
+  setcframe_pc(cf, oldpc);
+  ERRNO_RESTORE
+}
+#endif
+
+#if LJ_HASPROFILE
+/* Profile dispatch. */
+void LJ_FASTCALL lj_dispatch_profile(lua_State *L, const BCIns *pc)
+{
+  ERRNO_SAVE
+  GCfunc *fn = curr_func(L);
+  GCproto *pt = funcproto(fn);
+  void *cf = cframe_raw(L->cframe);
+  const BCIns *oldpc = cframe_pc(cf);
+  global_State *g;
+  setcframe_pc(cf, pc);
+  L->top = L->base + cur_topslot(pt, pc, cframe_multres_n(cf));
+  lj_profile_interpreter(L);
+  setcframe_pc(cf, oldpc);
+  g = G(L);
+  setgcref(g->cur_L, obj2gco(L));
+  setvmstate(g, INTERP);
+  ERRNO_RESTORE
+}
+#endif
+
diff --git a/libs/luajit-cmake/luajit/src/lj_dispatch.h b/libs/luajit-cmake/luajit/src/lj_dispatch.h
new file mode 100644
index 0000000..52762ee
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_dispatch.h
@@ -0,0 +1,164 @@
+/*
+** Instruction dispatch handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_DISPATCH_H
+#define _LJ_DISPATCH_H
+
+#include "lj_obj.h"
+#include "lj_bc.h"
+#if LJ_HASJIT
+#include "lj_jit.h"
+#endif
+
+#if LJ_TARGET_MIPS
+/* Need our own global offset table for the dreaded MIPS calling conventions. */
+
+#ifndef _LJ_VM_H
+LJ_ASMF int32_t LJ_FASTCALL lj_vm_modi(int32_t a, int32_t b);
+#endif
+
+#if LJ_SOFTFP
+#ifndef _LJ_IRCALL_H
+extern double __adddf3(double a, double b);
+extern double __subdf3(double a, double b);
+extern double __muldf3(double a, double b);
+extern double __divdf3(double a, double b);
+#endif
+#define SFGOTDEF(_)	_(sqrt) _(__adddf3) _(__subdf3) _(__muldf3) _(__divdf3)
+#else
+#define SFGOTDEF(_)
+#endif
+#if LJ_HASJIT
+#define JITGOTDEF(_)	_(lj_err_trace) _(lj_trace_exit) _(lj_trace_hot)
+#else
+#define JITGOTDEF(_)
+#endif
+#if LJ_HASFFI
+#define FFIGOTDEF(_) \
+  _(lj_meta_equal_cd) _(lj_ccallback_enter) _(lj_ccallback_leave)
+#else
+#define FFIGOTDEF(_)
+#endif
+#define GOTDEF(_) \
+  _(floor) _(ceil) _(trunc) _(log) _(log10) _(exp) _(sin) _(cos) _(tan) \
+  _(asin) _(acos) _(atan) _(sinh) _(cosh) _(tanh) _(frexp) _(modf) _(atan2) \
+  _(pow) _(fmod) _(ldexp) _(lj_vm_modi) \
+  _(lj_dispatch_call) _(lj_dispatch_ins) _(lj_dispatch_stitch) \
+  _(lj_dispatch_profile) _(lj_err_throw) \
+  _(lj_ffh_coroutine_wrap_err) _(lj_func_closeuv) _(lj_func_newL_gc) \
+  _(lj_gc_barrieruv) _(lj_gc_step) _(lj_gc_step_fixtop) _(lj_meta_arith) \
+  _(lj_meta_call) _(lj_meta_cat) _(lj_meta_comp) _(lj_meta_equal) \
+  _(lj_meta_for) _(lj_meta_istype) _(lj_meta_len) _(lj_meta_tget) \
+  _(lj_meta_tset) _(lj_state_growstack) _(lj_strfmt_number) \
+  _(lj_str_new) _(lj_tab_dup) _(lj_tab_get) _(lj_tab_getinth) _(lj_tab_len) \
+  _(lj_tab_new) _(lj_tab_newkey) _(lj_tab_next) _(lj_tab_reasize) \
+  _(lj_tab_setinth) _(lj_buf_putstr_reverse) _(lj_buf_putstr_lower) \
+  _(lj_buf_putstr_upper) _(lj_buf_tostr) \
+  JITGOTDEF(_) FFIGOTDEF(_) SFGOTDEF(_)
+
+enum {
+#define GOTENUM(name) LJ_GOT_##name,
+GOTDEF(GOTENUM)
+#undef GOTENUM
+  LJ_GOT__MAX
+};
+#endif
+
+/* Type of hot counter. Must match the code in the assembler VM. */
+/* 16 bits are sufficient. Only 0.0015% overhead with maximum slot penalty. */
+typedef uint16_t HotCount;
+
+/* Number of hot counter hash table entries (must be a power of two). */
+#define HOTCOUNT_SIZE		64
+#define HOTCOUNT_PCMASK		((HOTCOUNT_SIZE-1)*sizeof(HotCount))
+
+/* Hotcount decrements. */
+#define HOTCOUNT_LOOP		2
+#define HOTCOUNT_CALL		1
+
+/* This solves a circular dependency problem -- bump as needed. Sigh. */
+#define GG_NUM_ASMFF	57
+
+#define GG_LEN_DDISP	(BC__MAX + GG_NUM_ASMFF)
+#define GG_LEN_SDISP	BC_FUNCF
+#define GG_LEN_DISP	(GG_LEN_DDISP + GG_LEN_SDISP)
+
+/* Global state, main thread and extra fields are allocated together. */
+typedef struct GG_State {
+  lua_State L;				/* Main thread. */
+  global_State g;			/* Global state. */
+#if LJ_TARGET_ARM && !LJ_TARGET_NX
+  /* Make g reachable via K12 encoded DISPATCH-relative addressing. */
+  uint8_t align1[(16-sizeof(global_State))&15];
+#endif
+#if LJ_TARGET_MIPS
+  ASMFunction got[LJ_GOT__MAX];		/* Global offset table. */
+#endif
+#if LJ_HASJIT
+  jit_State J;				/* JIT state. */
+  HotCount hotcount[HOTCOUNT_SIZE];	/* Hot counters. */
+#if LJ_TARGET_ARM && !LJ_TARGET_NX
+  /* Ditto for J. */
+  uint8_t align2[(16-sizeof(jit_State)-sizeof(HotCount)*HOTCOUNT_SIZE)&15];
+#endif
+#endif
+  ASMFunction dispatch[GG_LEN_DISP];	/* Instruction dispatch tables. */
+  BCIns bcff[GG_NUM_ASMFF];		/* Bytecode for ASM fast functions. */
+} GG_State;
+
+#define GG_OFS(field)	((int)offsetof(GG_State, field))
+#define G2GG(gl)	((GG_State *)((char *)(gl) - GG_OFS(g)))
+#define J2GG(j)		((GG_State *)((char *)(j) - GG_OFS(J)))
+#define L2GG(L)		(G2GG(G(L)))
+#define J2G(J)		(&J2GG(J)->g)
+#define G2J(gl)		(&G2GG(gl)->J)
+#define L2J(L)		(&L2GG(L)->J)
+#define GG_G2J		(GG_OFS(J) - GG_OFS(g))
+#define GG_G2DISP	(GG_OFS(dispatch) - GG_OFS(g))
+#define GG_DISP2G	(GG_OFS(g) - GG_OFS(dispatch))
+#define GG_DISP2J	(GG_OFS(J) - GG_OFS(dispatch))
+#define GG_DISP2HOT	(GG_OFS(hotcount) - GG_OFS(dispatch))
+#define GG_DISP2STATIC	(GG_LEN_DDISP*(int)sizeof(ASMFunction))
+
+#define hotcount_get(gg, pc) \
+  (gg)->hotcount[(u32ptr(pc)>>2) & (HOTCOUNT_SIZE-1)]
+#define hotcount_set(gg, pc, val) \
+  (hotcount_get((gg), (pc)) = (HotCount)(val))
+
+/* Dispatch table management. */
+LJ_FUNC void lj_dispatch_init(GG_State *GG);
+#if LJ_HASJIT
+LJ_FUNC void lj_dispatch_init_hotcount(global_State *g);
+#endif
+LJ_FUNC void lj_dispatch_update(global_State *g);
+
+/* Instruction dispatch callback for hooks or when recording. */
+LJ_FUNCA void LJ_FASTCALL lj_dispatch_ins(lua_State *L, const BCIns *pc);
+LJ_FUNCA ASMFunction LJ_FASTCALL lj_dispatch_call(lua_State *L, const BCIns*pc);
+#if LJ_HASJIT
+LJ_FUNCA void LJ_FASTCALL lj_dispatch_stitch(jit_State *J, const BCIns *pc);
+#endif
+#if LJ_HASPROFILE
+LJ_FUNCA void LJ_FASTCALL lj_dispatch_profile(lua_State *L, const BCIns *pc);
+#endif
+
+#if LJ_HASFFI && !defined(_BUILDVM_H)
+/* Save/restore errno and GetLastError() around hooks, exits and recording. */
+#include <errno.h>
+#if LJ_TARGET_WINDOWS
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#define ERRNO_SAVE	int olderr = errno; DWORD oldwerr = GetLastError();
+#define ERRNO_RESTORE	errno = olderr; SetLastError(oldwerr);
+#else
+#define ERRNO_SAVE	int olderr = errno;
+#define ERRNO_RESTORE	errno = olderr;
+#endif
+#else
+#define ERRNO_SAVE
+#define ERRNO_RESTORE
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_emit_arm.h b/libs/luajit-cmake/luajit/src/lj_emit_arm.h
new file mode 100644
index 0000000..cfb174f
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_emit_arm.h
@@ -0,0 +1,361 @@
+/*
+** ARM instruction emitter.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* -- Constant encoding --------------------------------------------------- */
+
+static uint8_t emit_invai[16] = {
+  /* AND */ (ARMI_AND^ARMI_BIC) >> 21,
+  /* EOR */ 0,
+  /* SUB */ (ARMI_SUB^ARMI_ADD) >> 21,
+  /* RSB */ 0,
+  /* ADD */ (ARMI_ADD^ARMI_SUB) >> 21,
+  /* ADC */ (ARMI_ADC^ARMI_SBC) >> 21,
+  /* SBC */ (ARMI_SBC^ARMI_ADC) >> 21,
+  /* RSC */ 0,
+  /* TST */ 0,
+  /* TEQ */ 0,
+  /* CMP */ (ARMI_CMP^ARMI_CMN) >> 21,
+  /* CMN */ (ARMI_CMN^ARMI_CMP) >> 21,
+  /* ORR */ 0,
+  /* MOV */ (ARMI_MOV^ARMI_MVN) >> 21,
+  /* BIC */ (ARMI_BIC^ARMI_AND) >> 21,
+  /* MVN */ (ARMI_MVN^ARMI_MOV) >> 21
+};
+
+/* Encode constant in K12 format for data processing instructions. */
+static uint32_t emit_isk12(ARMIns ai, int32_t n)
+{
+  uint32_t invai, i, m = (uint32_t)n;
+  /* K12: unsigned 8 bit value, rotated in steps of two bits. */
+  for (i = 0; i < 4096; i += 256, m = lj_rol(m, 2))
+    if (m <= 255) return ARMI_K12|m|i;
+  /* Otherwise try negation/complement with the inverse instruction. */
+  invai = emit_invai[((ai >> 21) & 15)];
+  if (!invai) return 0;  /* Failed. No inverse instruction. */
+  m = ~(uint32_t)n;
+  if (invai == ((ARMI_SUB^ARMI_ADD) >> 21) ||
+      invai == (ARMI_CMP^ARMI_CMN) >> 21) m++;
+  for (i = 0; i < 4096; i += 256, m = lj_rol(m, 2))
+    if (m <= 255) return ARMI_K12|(invai<<21)|m|i;
+  return 0;  /* Failed. */
+}
+
+/* -- Emit basic instructions --------------------------------------------- */
+
+static void emit_dnm(ASMState *as, ARMIns ai, Reg rd, Reg rn, Reg rm)
+{
+  *--as->mcp = ai | ARMF_D(rd) | ARMF_N(rn) | ARMF_M(rm);
+}
+
+static void emit_dm(ASMState *as, ARMIns ai, Reg rd, Reg rm)
+{
+  *--as->mcp = ai | ARMF_D(rd) | ARMF_M(rm);
+}
+
+static void emit_dn(ASMState *as, ARMIns ai, Reg rd, Reg rn)
+{
+  *--as->mcp = ai | ARMF_D(rd) | ARMF_N(rn);
+}
+
+static void emit_nm(ASMState *as, ARMIns ai, Reg rn, Reg rm)
+{
+  *--as->mcp = ai | ARMF_N(rn) | ARMF_M(rm);
+}
+
+static void emit_d(ASMState *as, ARMIns ai, Reg rd)
+{
+  *--as->mcp = ai | ARMF_D(rd);
+}
+
+static void emit_n(ASMState *as, ARMIns ai, Reg rn)
+{
+  *--as->mcp = ai | ARMF_N(rn);
+}
+
+static void emit_m(ASMState *as, ARMIns ai, Reg rm)
+{
+  *--as->mcp = ai | ARMF_M(rm);
+}
+
+static void emit_lsox(ASMState *as, ARMIns ai, Reg rd, Reg rn, int32_t ofs)
+{
+  lj_assertA(ofs >= -255 && ofs <= 255,
+	     "load/store offset %d out of range", ofs);
+  if (ofs < 0) ofs = -ofs; else ai |= ARMI_LS_U;
+  *--as->mcp = ai | ARMI_LS_P | ARMI_LSX_I | ARMF_D(rd) | ARMF_N(rn) |
+	       ((ofs & 0xf0) << 4) | (ofs & 0x0f);
+}
+
+static void emit_lso(ASMState *as, ARMIns ai, Reg rd, Reg rn, int32_t ofs)
+{
+  lj_assertA(ofs >= -4095 && ofs <= 4095,
+	     "load/store offset %d out of range", ofs);
+  /* Combine LDR/STR pairs to LDRD/STRD. */
+  if (*as->mcp == (ai|ARMI_LS_P|ARMI_LS_U|ARMF_D(rd^1)|ARMF_N(rn)|(ofs^4)) &&
+      (ai & ~(ARMI_LDR^ARMI_STR)) == ARMI_STR && rd != rn &&
+      (uint32_t)ofs <= 252 && !(ofs & 3) && !((rd ^ (ofs >>2)) & 1) &&
+      as->mcp != as->mcloop) {
+    as->mcp++;
+    emit_lsox(as, ai == ARMI_LDR ? ARMI_LDRD : ARMI_STRD, rd&~1, rn, ofs&~4);
+    return;
+  }
+  if (ofs < 0) ofs = -ofs; else ai |= ARMI_LS_U;
+  *--as->mcp = ai | ARMI_LS_P | ARMF_D(rd) | ARMF_N(rn) | ofs;
+}
+
+#if !LJ_SOFTFP
+static void emit_vlso(ASMState *as, ARMIns ai, Reg rd, Reg rn, int32_t ofs)
+{
+  lj_assertA(ofs >= -1020 && ofs <= 1020 && (ofs&3) == 0,
+	     "load/store offset %d out of range", ofs);
+  if (ofs < 0) ofs = -ofs; else ai |= ARMI_LS_U;
+  *--as->mcp = ai | ARMI_LS_P | ARMF_D(rd & 15) | ARMF_N(rn) | (ofs >> 2);
+}
+#endif
+
+/* -- Emit loads/stores --------------------------------------------------- */
+
+/* Prefer spills of BASE/L. */
+#define emit_canremat(ref)	((ref) < ASMREF_L)
+
+/* Try to find a one step delta relative to another constant. */
+static int emit_kdelta1(ASMState *as, Reg d, int32_t i)
+{
+  RegSet work = ~as->freeset & RSET_GPR;
+  while (work) {
+    Reg r = rset_picktop(work);
+    IRRef ref = regcost_ref(as->cost[r]);
+    lj_assertA(r != d, "dest reg not free");
+    if (emit_canremat(ref)) {
+      int32_t delta = i - (ra_iskref(ref) ? ra_krefk(as, ref) : IR(ref)->i);
+      uint32_t k = emit_isk12(ARMI_ADD, delta);
+      if (k) {
+	if (k == ARMI_K12)
+	  emit_dm(as, ARMI_MOV, d, r);
+	else
+	  emit_dn(as, ARMI_ADD^k, d, r);
+	return 1;
+      }
+    }
+    rset_clear(work, r);
+  }
+  return 0;  /* Failed. */
+}
+
+/* Try to find a two step delta relative to another constant. */
+static int emit_kdelta2(ASMState *as, Reg rd, int32_t i)
+{
+  RegSet work = ~as->freeset & RSET_GPR;
+  while (work) {
+    Reg r = rset_picktop(work);
+    IRRef ref = regcost_ref(as->cost[r]);
+    lj_assertA(r != rd, "dest reg %d not free", rd);
+    if (emit_canremat(ref)) {
+      int32_t other = ra_iskref(ref) ? ra_krefk(as, ref) : IR(ref)->i;
+      if (other) {
+	int32_t delta = i - other;
+	uint32_t sh, inv = 0, k2, k;
+	if (delta < 0) { delta = -delta; inv = ARMI_ADD^ARMI_SUB; }
+	sh = lj_ffs(delta) & ~1;
+	k2 = emit_isk12(0, delta & (255 << sh));
+	k = emit_isk12(0, delta & ~(255 << sh));
+	if (k) {
+	  emit_dn(as, ARMI_ADD^k2^inv, rd, rd);
+	  emit_dn(as, ARMI_ADD^k^inv, rd, r);
+	  return 1;
+	}
+      }
+    }
+    rset_clear(work, r);
+  }
+  return 0;  /* Failed. */
+}
+
+/* Load a 32 bit constant into a GPR. */
+static void emit_loadi(ASMState *as, Reg rd, int32_t i)
+{
+  uint32_t k = emit_isk12(ARMI_MOV, i);
+  lj_assertA(rset_test(as->freeset, rd) || rd == RID_TMP,
+	     "dest reg %d not free", rd);
+  if (k) {
+    /* Standard K12 constant. */
+    emit_d(as, ARMI_MOV^k, rd);
+  } else if ((as->flags & JIT_F_ARMV6T2) && (uint32_t)i < 0x00010000u) {
+    /* 16 bit loword constant for ARMv6T2. */
+    emit_d(as, ARMI_MOVW|(i & 0x0fff)|((i & 0xf000)<<4), rd);
+  } else if (emit_kdelta1(as, rd, i)) {
+    /* One step delta relative to another constant. */
+  } else if ((as->flags & JIT_F_ARMV6T2)) {
+    /* 32 bit hiword/loword constant for ARMv6T2. */
+    emit_d(as, ARMI_MOVT|((i>>16) & 0x0fff)|(((i>>16) & 0xf000)<<4), rd);
+    emit_d(as, ARMI_MOVW|(i & 0x0fff)|((i & 0xf000)<<4), rd);
+  } else if (emit_kdelta2(as, rd, i)) {
+    /* Two step delta relative to another constant. */
+  } else {
+    /* Otherwise construct the constant with up to 4 instructions. */
+    /* NYI: use mvn+bic, use pc-relative loads. */
+    for (;;) {
+      uint32_t sh = lj_ffs(i) & ~1;
+      int32_t m = i & (255 << sh);
+      i &= ~(255 << sh);
+      if (i == 0) {
+	emit_d(as, ARMI_MOV ^ emit_isk12(0, m), rd);
+	break;
+      }
+      emit_dn(as, ARMI_ORR ^ emit_isk12(0, m), rd, rd);
+    }
+  }
+}
+
+#define emit_loada(as, rd, addr)	emit_loadi(as, (rd), i32ptr((addr)))
+
+static Reg ra_allock(ASMState *as, intptr_t k, RegSet allow);
+
+/* Get/set from constant pointer. */
+static void emit_lsptr(ASMState *as, ARMIns ai, Reg r, void *p)
+{
+  int32_t i = i32ptr(p);
+  emit_lso(as, ai, r, ra_allock(as, (i & ~4095), rset_exclude(RSET_GPR, r)),
+	   (i & 4095));
+}
+
+#if !LJ_SOFTFP
+/* Load a number constant into an FPR. */
+static void emit_loadk64(ASMState *as, Reg r, IRIns *ir)
+{
+  cTValue *tv = ir_knum(ir);
+  int32_t i;
+  if ((as->flags & JIT_F_VFPV3) && !tv->u32.lo) {
+    uint32_t hi = tv->u32.hi;
+    uint32_t b = ((hi >> 22) & 0x1ff);
+    if (!(hi & 0xffff) && (b == 0x100 || b == 0x0ff)) {
+      *--as->mcp = ARMI_VMOVI_D | ARMF_D(r & 15) |
+		   ((tv->u32.hi >> 12) & 0x00080000) |
+		   ((tv->u32.hi >> 4) & 0x00070000) |
+		   ((tv->u32.hi >> 16) & 0x0000000f);
+      return;
+    }
+  }
+  i = i32ptr(tv);
+  emit_vlso(as, ARMI_VLDR_D, r,
+	    ra_allock(as, (i & ~1020), RSET_GPR), (i & 1020));
+}
+#endif
+
+/* Get/set global_State fields. */
+#define emit_getgl(as, r, field) \
+  emit_lsptr(as, ARMI_LDR, (r), (void *)&J2G(as->J)->field)
+#define emit_setgl(as, r, field) \
+  emit_lsptr(as, ARMI_STR, (r), (void *)&J2G(as->J)->field)
+
+/* Trace number is determined from pc of exit instruction. */
+#define emit_setvmstate(as, i)		UNUSED(i)
+
+/* -- Emit control-flow instructions -------------------------------------- */
+
+/* Label for internal jumps. */
+typedef MCode *MCLabel;
+
+/* Return label pointing to current PC. */
+#define emit_label(as)		((as)->mcp)
+
+static void emit_branch(ASMState *as, ARMIns ai, MCode *target)
+{
+  MCode *p = as->mcp;
+  ptrdiff_t delta = (target - p) - 1;
+  lj_assertA(((delta + 0x00800000) >> 24) == 0, "branch target out of range");
+  *--p = ai | ((uint32_t)delta & 0x00ffffffu);
+  as->mcp = p;
+}
+
+#define emit_jmp(as, target) emit_branch(as, ARMI_B, (target))
+
+static void emit_call(ASMState *as, void *target)
+{
+  MCode *p = --as->mcp;
+  ptrdiff_t delta = ((char *)target - (char *)p) - 8;
+  if ((((delta>>2) + 0x00800000) >> 24) == 0) {
+    if ((delta & 1))
+      *p = ARMI_BLX | ((uint32_t)(delta>>2) & 0x00ffffffu) | ((delta&2) << 23);
+    else
+      *p = ARMI_BL | ((uint32_t)(delta>>2) & 0x00ffffffu);
+  } else {  /* Target out of range: need indirect call. But don't use R0-R3. */
+    Reg r = ra_allock(as, i32ptr(target), RSET_RANGE(RID_R4, RID_R12+1));
+    *p = ARMI_BLXr | ARMF_M(r);
+  }
+}
+
+/* -- Emit generic operations --------------------------------------------- */
+
+/* Generic move between two regs. */
+static void emit_movrr(ASMState *as, IRIns *ir, Reg dst, Reg src)
+{
+#if LJ_SOFTFP
+  lj_assertA(!irt_isnum(ir->t), "unexpected FP op"); UNUSED(ir);
+#else
+  if (dst >= RID_MAX_GPR) {
+    emit_dm(as, irt_isnum(ir->t) ? ARMI_VMOV_D : ARMI_VMOV_S,
+	    (dst & 15), (src & 15));
+    return;
+  }
+#endif
+  if (as->mcp != as->mcloop) {  /* Swap early registers for loads/stores. */
+    MCode ins = *as->mcp, swp = (src^dst);
+    if ((ins & 0x0c000000) == 0x04000000 && (ins & 0x02000010) != 0x02000010) {
+      if (!((ins ^ (dst << 16)) & 0x000f0000))
+	*as->mcp = ins ^ (swp << 16);  /* Swap N in load/store. */
+      if (!(ins & 0x00100000) && !((ins ^ (dst << 12)) & 0x0000f000))
+	*as->mcp = ins ^ (swp << 12);  /* Swap D in store. */
+    }
+  }
+  emit_dm(as, ARMI_MOV, dst, src);
+}
+
+/* Generic load of register with base and (small) offset address. */
+static void emit_loadofs(ASMState *as, IRIns *ir, Reg r, Reg base, int32_t ofs)
+{
+#if LJ_SOFTFP
+  lj_assertA(!irt_isnum(ir->t), "unexpected FP op"); UNUSED(ir);
+#else
+  if (r >= RID_MAX_GPR)
+    emit_vlso(as, irt_isnum(ir->t) ? ARMI_VLDR_D : ARMI_VLDR_S, r, base, ofs);
+  else
+#endif
+    emit_lso(as, ARMI_LDR, r, base, ofs);
+}
+
+/* Generic store of register with base and (small) offset address. */
+static void emit_storeofs(ASMState *as, IRIns *ir, Reg r, Reg base, int32_t ofs)
+{
+#if LJ_SOFTFP
+  lj_assertA(!irt_isnum(ir->t), "unexpected FP op"); UNUSED(ir);
+#else
+  if (r >= RID_MAX_GPR)
+    emit_vlso(as, irt_isnum(ir->t) ? ARMI_VSTR_D : ARMI_VSTR_S, r, base, ofs);
+  else
+#endif
+    emit_lso(as, ARMI_STR, r, base, ofs);
+}
+
+/* Emit an arithmetic/logic operation with a constant operand. */
+static void emit_opk(ASMState *as, ARMIns ai, Reg dest, Reg src,
+		     int32_t i, RegSet allow)
+{
+  uint32_t k = emit_isk12(ai, i);
+  if (k)
+    emit_dn(as, ai^k, dest, src);
+  else
+    emit_dnm(as, ai, dest, src, ra_allock(as, i, allow));
+}
+
+/* Add offset to pointer. */
+static void emit_addptr(ASMState *as, Reg r, int32_t ofs)
+{
+  if (ofs)
+    emit_opk(as, ARMI_ADD, r, r, ofs, rset_exclude(RSET_GPR, r));
+}
+
+#define emit_spsub(as, ofs)	emit_addptr(as, RID_SP, -(ofs))
+
diff --git a/libs/luajit-cmake/luajit/src/lj_emit_arm64.h b/libs/luajit-cmake/luajit/src/lj_emit_arm64.h
new file mode 100644
index 0000000..c4b4c14
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_emit_arm64.h
@@ -0,0 +1,424 @@
+/*
+** ARM64 instruction emitter.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Contributed by Djordje Kovacevic and Stefan Pejic from RT-RK.com.
+** Sponsored by Cisco Systems, Inc.
+*/
+
+/* -- Constant encoding --------------------------------------------------- */
+
+static uint64_t get_k64val(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (ir->o == IR_KINT64) {
+    return ir_kint64(ir)->u64;
+  } else if (ir->o == IR_KGC) {
+    return (uint64_t)ir_kgc(ir);
+  } else if (ir->o == IR_KPTR || ir->o == IR_KKPTR) {
+    return (uint64_t)ir_kptr(ir);
+  } else {
+    lj_assertA(ir->o == IR_KINT || ir->o == IR_KNULL,
+	       "bad 64 bit const IR op %d", ir->o);
+    return ir->i;  /* Sign-extended. */
+  }
+}
+
+/* Encode constant in K12 format for data processing instructions. */
+static uint32_t emit_isk12(int64_t n)
+{
+  uint64_t k = (n < 0) ? -n : n;
+  uint32_t m = (n < 0) ? 0x40000000 : 0;
+  if (k < 0x1000) {
+    return A64I_K12|m|A64F_U12(k);
+  } else if ((k & 0xfff000) == k) {
+    return A64I_K12|m|0x400000|A64F_U12(k>>12);
+  }
+  return 0;
+}
+
+#define emit_clz64(n)	__builtin_clzll(n)
+#define emit_ctz64(n)	__builtin_ctzll(n)
+
+/* Encode constant in K13 format for logical data processing instructions. */
+static uint32_t emit_isk13(uint64_t n, int is64)
+{
+  int inv = 0, w = 128, lz, tz;
+  if (n & 1) { n = ~n; w = 64; inv = 1; }  /* Avoid wrap-around of ones. */
+  if (!n) return 0;  /* Neither all-zero nor all-ones are allowed. */
+  do {  /* Find the repeat width. */
+    if (is64 && (uint32_t)(n^(n>>32))) break;
+    n = (uint32_t)n;
+    if (!n) return 0;  /* Ditto when passing n=0xffffffff and is64=0. */
+    w = 32; if ((n^(n>>16)) & 0xffff) break;
+    n = n & 0xffff; w = 16; if ((n^(n>>8)) & 0xff) break;
+    n = n & 0xff; w = 8; if ((n^(n>>4)) & 0xf) break;
+    n = n & 0xf; w = 4; if ((n^(n>>2)) & 0x3) break;
+    n = n & 0x3; w = 2;
+  } while (0);
+  lz = emit_clz64(n);
+  tz = emit_ctz64(n);
+  if ((int64_t)(n << lz) >> (lz+tz) != -1ll) return 0; /* Non-contiguous? */
+  if (inv)
+    return A64I_K13 | (((lz-w) & 127) << 16) | (((lz+tz-w-1) & 63) << 10);
+  else
+    return A64I_K13 | ((w-tz) << 16) | (((63-lz-tz-w-w) & 63) << 10);
+}
+
+static uint32_t emit_isfpk64(uint64_t n)
+{
+  uint64_t etop9 = ((n >> 54) & 0x1ff);
+  if ((n << 16) == 0 && (etop9 == 0x100 || etop9 == 0x0ff)) {
+    return (uint32_t)(((n >> 48) & 0x7f) | ((n >> 56) & 0x80));
+  }
+  return ~0u;
+}
+
+/* -- Emit basic instructions --------------------------------------------- */
+
+static void emit_dnma(ASMState *as, A64Ins ai, Reg rd, Reg rn, Reg rm, Reg ra)
+{
+  *--as->mcp = ai | A64F_D(rd) | A64F_N(rn) | A64F_M(rm) | A64F_A(ra);
+}
+
+static void emit_dnm(ASMState *as, A64Ins ai, Reg rd, Reg rn, Reg rm)
+{
+  *--as->mcp = ai | A64F_D(rd) | A64F_N(rn) | A64F_M(rm);
+}
+
+static void emit_dm(ASMState *as, A64Ins ai, Reg rd, Reg rm)
+{
+  *--as->mcp = ai | A64F_D(rd) | A64F_M(rm);
+}
+
+static void emit_dn(ASMState *as, A64Ins ai, Reg rd, Reg rn)
+{
+  *--as->mcp = ai | A64F_D(rd) | A64F_N(rn);
+}
+
+static void emit_nm(ASMState *as, A64Ins ai, Reg rn, Reg rm)
+{
+  *--as->mcp = ai | A64F_N(rn) | A64F_M(rm);
+}
+
+static void emit_d(ASMState *as, A64Ins ai, Reg rd)
+{
+  *--as->mcp = ai | A64F_D(rd);
+}
+
+static void emit_n(ASMState *as, A64Ins ai, Reg rn)
+{
+  *--as->mcp = ai | A64F_N(rn);
+}
+
+static int emit_checkofs(A64Ins ai, int64_t ofs)
+{
+  int scale = (ai >> 30) & 3;
+  if (ofs < 0 || (ofs & ((1<<scale)-1))) {
+    return (ofs >= -256 && ofs <= 255) ? -1 : 0;
+  } else {
+    return (ofs < (4096<<scale)) ? 1 : 0;
+  }
+}
+
+static void emit_lso(ASMState *as, A64Ins ai, Reg rd, Reg rn, int64_t ofs)
+{
+  int ot = emit_checkofs(ai, ofs), sc = (ai >> 30) & 3;
+  lj_assertA(ot, "load/store offset %d out of range", ofs);
+  /* Combine LDR/STR pairs to LDP/STP. */
+  if ((sc == 2 || sc == 3) &&
+      (!(ai & 0x400000) || rd != rn) &&
+      as->mcp != as->mcloop) {
+    uint32_t prev = *as->mcp & ~A64F_D(31);
+    int ofsm = ofs - (1<<sc), ofsp = ofs + (1<<sc);
+    A64Ins aip;
+    if (prev == (ai | A64F_N(rn) | A64F_U12(ofsm>>sc)) ||
+	prev == ((ai^A64I_LS_U) | A64F_N(rn) | A64F_S9(ofsm&0x1ff))) {
+      aip = (A64F_A(rd) | A64F_D(*as->mcp & 31));
+    } else if (prev == (ai | A64F_N(rn) | A64F_U12(ofsp>>sc)) ||
+	       prev == ((ai^A64I_LS_U) | A64F_N(rn) | A64F_S9(ofsp&0x1ff))) {
+      aip = (A64F_D(rd) | A64F_A(*as->mcp & 31));
+      ofsm = ofs;
+    } else {
+      goto nopair;
+    }
+    if (ofsm >= (int)((unsigned int)-64<<sc) && ofsm <= (63<<sc)) {
+      *as->mcp = aip | A64F_N(rn) | ((ofsm >> sc) << 15) |
+	(ai ^ ((ai == A64I_LDRx || ai == A64I_STRx) ? 0x50000000 : 0x90000000));
+      return;
+    }
+  }
+nopair:
+  if (ot == 1)
+    *--as->mcp = ai | A64F_D(rd) | A64F_N(rn) | A64F_U12(ofs >> sc);
+  else
+    *--as->mcp = (ai^A64I_LS_U) | A64F_D(rd) | A64F_N(rn) | A64F_S9(ofs & 0x1ff);
+}
+
+/* -- Emit loads/stores --------------------------------------------------- */
+
+/* Prefer rematerialization of BASE/L from global_State over spills. */
+#define emit_canremat(ref)	((ref) <= ASMREF_L)
+
+/* Try to find an N-step delta relative to other consts with N < lim. */
+static int emit_kdelta(ASMState *as, Reg rd, uint64_t k, int lim)
+{
+  RegSet work = (~as->freeset & RSET_GPR) | RID2RSET(RID_GL);
+  if (lim <= 1) return 0;  /* Can't beat that. */
+  while (work) {
+    Reg r = rset_picktop(work);
+    IRRef ref = regcost_ref(as->cost[r]);
+    lj_assertA(r != rd, "dest reg %d not free", rd);
+    if (ref < REF_TRUE) {
+      uint64_t kx = ra_iskref(ref) ? (uint64_t)ra_krefk(as, ref) :
+				     get_k64val(as, ref);
+      int64_t delta = (int64_t)(k - kx);
+      if (delta == 0) {
+	emit_dm(as, A64I_MOVx, rd, r);
+	return 1;
+      } else {
+	uint32_t k12 = emit_isk12(delta < 0 ? -delta : delta);
+	if (k12) {
+	  emit_dn(as, (delta < 0 ? A64I_SUBx : A64I_ADDx)^k12, rd, r);
+	  return 1;
+	}
+	/* Do other ops or multi-step deltas pay off? Probably not.
+	** E.g. XOR rarely helps with pointer consts.
+	*/
+      }
+    }
+    rset_clear(work, r);
+  }
+  return 0;  /* Failed. */
+}
+
+static void emit_loadk(ASMState *as, Reg rd, uint64_t u64, int is64)
+{
+  int i, zeros = 0, ones = 0, neg;
+  if (!is64) u64 = (int64_t)(int32_t)u64;  /* Sign-extend. */
+  /* Count homogeneous 16 bit fragments. */
+  for (i = 0; i < 4; i++) {
+    uint64_t frag = (u64 >> i*16) & 0xffff;
+    zeros += (frag == 0);
+    ones += (frag == 0xffff);
+  }
+  neg = ones > zeros;  /* Use MOVN if it pays off. */
+  if ((neg ? ones : zeros) < 3) {  /* Need 2+ ins. Try shorter K13 encoding. */
+    uint32_t k13 = emit_isk13(u64, is64);
+    if (k13) {
+      emit_dn(as, (is64|A64I_ORRw)^k13, rd, RID_ZERO);
+      return;
+    }
+  }
+  if (!emit_kdelta(as, rd, u64, 4 - (neg ? ones : zeros))) {
+    int shift = 0, lshift = 0;
+    uint64_t n64 = neg ? ~u64 : u64;
+    if (n64 != 0) {
+      /* Find first/last fragment to be filled. */
+      shift = (63-emit_clz64(n64)) & ~15;
+      lshift = emit_ctz64(n64) & ~15;
+    }
+    /* MOVK requires the original value (u64). */
+    while (shift > lshift) {
+      uint32_t u16 = (u64 >> shift) & 0xffff;
+      /* Skip fragments that are correctly filled by MOVN/MOVZ. */
+      if (u16 != (neg ? 0xffff : 0))
+	emit_d(as, is64 | A64I_MOVKw | A64F_U16(u16) | A64F_LSL16(shift), rd);
+      shift -= 16;
+    }
+    /* But MOVN needs an inverted value (n64). */
+    emit_d(as, (neg ? A64I_MOVNx : A64I_MOVZx) |
+	       A64F_U16((n64 >> lshift) & 0xffff) | A64F_LSL16(lshift), rd);
+  }
+}
+
+/* Load a 32 bit constant into a GPR. */
+#define emit_loadi(as, rd, i)	emit_loadk(as, rd, i, 0)
+
+/* Load a 64 bit constant into a GPR. */
+#define emit_loadu64(as, rd, i)	emit_loadk(as, rd, i, A64I_X)
+
+#define emit_loada(as, r, addr)	emit_loadu64(as, (r), (uintptr_t)(addr))
+
+#define glofs(as, k) \
+  ((intptr_t)((uintptr_t)(k) - (uintptr_t)&J2GG(as->J)->g))
+#define mcpofs(as, k) \
+  ((intptr_t)((uintptr_t)(k) - (uintptr_t)(as->mcp - 1)))
+#define checkmcpofs(as, k) \
+  (A64F_S_OK(mcpofs(as, k)>>2, 19))
+
+static Reg ra_allock(ASMState *as, intptr_t k, RegSet allow);
+
+/* Get/set from constant pointer. */
+static void emit_lsptr(ASMState *as, A64Ins ai, Reg r, void *p)
+{
+  /* First, check if ip + offset is in range. */
+  if ((ai & 0x00400000) && checkmcpofs(as, p)) {
+    emit_d(as, A64I_LDRLx | A64F_S19(mcpofs(as, p)>>2), r);
+  } else {
+    Reg base = RID_GL;  /* Next, try GL + offset. */
+    int64_t ofs = glofs(as, p);
+    if (!emit_checkofs(ai, ofs)) {  /* Else split up into base reg + offset. */
+      int64_t i64 = i64ptr(p);
+      base = ra_allock(as, (i64 & ~0x7fffull), rset_exclude(RSET_GPR, r));
+      ofs = i64 & 0x7fffull;
+    }
+    emit_lso(as, ai, r, base, ofs);
+  }
+}
+
+/* Load 64 bit IR constant into register. */
+static void emit_loadk64(ASMState *as, Reg r, IRIns *ir)
+{
+  const uint64_t *k = &ir_k64(ir)->u64;
+  int64_t ofs;
+  if (r >= RID_MAX_GPR) {
+    uint32_t fpk = emit_isfpk64(*k);
+    if (fpk != ~0u) {
+      emit_d(as, A64I_FMOV_DI | A64F_FP8(fpk), (r & 31));
+      return;
+    }
+  }
+  ofs = glofs(as, k);
+  if (emit_checkofs(A64I_LDRx, ofs)) {
+    emit_lso(as, r >= RID_MAX_GPR ? A64I_LDRd : A64I_LDRx,
+	     (r & 31), RID_GL, ofs);
+  } else {
+    if (r >= RID_MAX_GPR) {
+      emit_dn(as, A64I_FMOV_D_R, (r & 31), RID_TMP);
+      r = RID_TMP;
+    }
+    if (checkmcpofs(as, k))
+      emit_d(as, A64I_LDRLx | A64F_S19(mcpofs(as, k)>>2), r);
+    else
+      emit_loadu64(as, r, *k);
+  }
+}
+
+/* Get/set global_State fields. */
+#define emit_getgl(as, r, field) \
+  emit_lsptr(as, A64I_LDRx, (r), (void *)&J2G(as->J)->field)
+#define emit_setgl(as, r, field) \
+  emit_lsptr(as, A64I_STRx, (r), (void *)&J2G(as->J)->field)
+
+/* Trace number is determined from pc of exit instruction. */
+#define emit_setvmstate(as, i)	UNUSED(i)
+
+/* -- Emit control-flow instructions -------------------------------------- */
+
+/* Label for internal jumps. */
+typedef MCode *MCLabel;
+
+/* Return label pointing to current PC. */
+#define emit_label(as)		((as)->mcp)
+
+static void emit_cond_branch(ASMState *as, A64CC cond, MCode *target)
+{
+  MCode *p = --as->mcp;
+  ptrdiff_t delta = target - p;
+  lj_assertA(A64F_S_OK(delta, 19), "branch target out of range");
+  *p = A64I_BCC | A64F_S19(delta) | cond;
+}
+
+static void emit_branch(ASMState *as, A64Ins ai, MCode *target)
+{
+  MCode *p = --as->mcp;
+  ptrdiff_t delta = target - p;
+  lj_assertA(A64F_S_OK(delta, 26), "branch target out of range");
+  *p = ai | A64F_S26(delta);
+}
+
+static void emit_tnb(ASMState *as, A64Ins ai, Reg r, uint32_t bit, MCode *target)
+{
+  MCode *p = --as->mcp;
+  ptrdiff_t delta = target - p;
+  lj_assertA(bit < 63, "bit number out of range");
+  lj_assertA(A64F_S_OK(delta, 14), "branch target out of range");
+  if (bit > 31) ai |= A64I_X;
+  *p = ai | A64F_BIT(bit & 31) | A64F_S14(delta) | r;
+}
+
+static void emit_cnb(ASMState *as, A64Ins ai, Reg r, MCode *target)
+{
+  MCode *p = --as->mcp;
+  ptrdiff_t delta = target - p;
+  lj_assertA(A64F_S_OK(delta, 19), "branch target out of range");
+  *p = ai | A64F_S19(delta) | r;
+}
+
+#define emit_jmp(as, target)	emit_branch(as, A64I_B, (target))
+
+static void emit_call(ASMState *as, void *target)
+{
+  MCode *p = --as->mcp;
+  ptrdiff_t delta = (char *)target - (char *)p;
+  if (A64F_S_OK(delta>>2, 26)) {
+    *p = A64I_BL | A64F_S26(delta>>2);
+  } else {  /* Target out of range: need indirect call. But don't use R0-R7. */
+    Reg r = ra_allock(as, i64ptr(target),
+		      RSET_RANGE(RID_X8, RID_MAX_GPR)-RSET_FIXED);
+    *p = A64I_BLR | A64F_N(r);
+  }
+}
+
+/* -- Emit generic operations --------------------------------------------- */
+
+/* Generic move between two regs. */
+static void emit_movrr(ASMState *as, IRIns *ir, Reg dst, Reg src)
+{
+  if (dst >= RID_MAX_GPR) {
+    emit_dn(as, irt_isnum(ir->t) ? A64I_FMOV_D : A64I_FMOV_S,
+	    (dst & 31), (src & 31));
+    return;
+  }
+  if (as->mcp != as->mcloop) {  /* Swap early registers for loads/stores. */
+    MCode ins = *as->mcp, swp = (src^dst);
+    if ((ins & 0xbf800000) == 0xb9000000) {
+      if (!((ins ^ (dst << 5)) & 0x000003e0))
+	*as->mcp = ins ^ (swp << 5);  /* Swap N in load/store. */
+      if (!(ins & 0x00400000) && !((ins ^ dst) & 0x0000001f))
+	*as->mcp = ins ^ swp;  /* Swap D in store. */
+    }
+  }
+  emit_dm(as, A64I_MOVx, dst, src);
+}
+
+/* Generic load of register with base and (small) offset address. */
+static void emit_loadofs(ASMState *as, IRIns *ir, Reg r, Reg base, int32_t ofs)
+{
+  if (r >= RID_MAX_GPR)
+    emit_lso(as, irt_isnum(ir->t) ? A64I_LDRd : A64I_LDRs, (r & 31), base, ofs);
+  else
+    emit_lso(as, irt_is64(ir->t) ? A64I_LDRx : A64I_LDRw, r, base, ofs);
+}
+
+/* Generic store of register with base and (small) offset address. */
+static void emit_storeofs(ASMState *as, IRIns *ir, Reg r, Reg base, int32_t ofs)
+{
+  if (r >= RID_MAX_GPR)
+    emit_lso(as, irt_isnum(ir->t) ? A64I_STRd : A64I_STRs, (r & 31), base, ofs);
+  else
+    emit_lso(as, irt_is64(ir->t) ? A64I_STRx : A64I_STRw, r, base, ofs);
+}
+
+/* Emit an arithmetic operation with a constant operand. */
+static void emit_opk(ASMState *as, A64Ins ai, Reg dest, Reg src,
+		     int32_t i, RegSet allow)
+{
+  uint32_t k = emit_isk12(i);
+  if (k)
+    emit_dn(as, ai^k, dest, src);
+  else
+    emit_dnm(as, ai, dest, src, ra_allock(as, i, allow));
+}
+
+/* Add offset to pointer. */
+static void emit_addptr(ASMState *as, Reg r, int32_t ofs)
+{
+  if (ofs)
+    emit_opk(as, ofs < 0 ? A64I_SUBx : A64I_ADDx, r, r,
+		 ofs < 0 ? -ofs : ofs, rset_exclude(RSET_GPR, r));
+}
+
+#define emit_spsub(as, ofs)	emit_addptr(as, RID_SP, -(ofs))
+
diff --git a/libs/luajit-cmake/luajit/src/lj_emit_mips.h b/libs/luajit-cmake/luajit/src/lj_emit_mips.h
new file mode 100644
index 0000000..0cea547
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_emit_mips.h
@@ -0,0 +1,310 @@
+/*
+** MIPS instruction emitter.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#if LJ_64
+static intptr_t get_k64val(ASMState *as, IRRef ref)
+{
+  IRIns *ir = IR(ref);
+  if (ir->o == IR_KINT64) {
+    return (intptr_t)ir_kint64(ir)->u64;
+  } else if (ir->o == IR_KGC) {
+    return (intptr_t)ir_kgc(ir);
+  } else if (ir->o == IR_KPTR || ir->o == IR_KKPTR) {
+    return (intptr_t)ir_kptr(ir);
+  } else if (LJ_SOFTFP && ir->o == IR_KNUM) {
+    return (intptr_t)ir_knum(ir)->u64;
+  } else {
+    lj_assertA(ir->o == IR_KINT || ir->o == IR_KNULL,
+	       "bad 64 bit const IR op %d", ir->o);
+    return ir->i;  /* Sign-extended. */
+  }
+}
+#endif
+
+#if LJ_64
+#define get_kval(as, ref)	get_k64val(as, ref)
+#else
+#define get_kval(as, ref)	(IR((ref))->i)
+#endif
+
+/* -- Emit basic instructions --------------------------------------------- */
+
+static void emit_dst(ASMState *as, MIPSIns mi, Reg rd, Reg rs, Reg rt)
+{
+  *--as->mcp = mi | MIPSF_D(rd) | MIPSF_S(rs) | MIPSF_T(rt);
+}
+
+static void emit_dta(ASMState *as, MIPSIns mi, Reg rd, Reg rt, uint32_t a)
+{
+  *--as->mcp = mi | MIPSF_D(rd) | MIPSF_T(rt) | MIPSF_A(a);
+}
+
+#define emit_ds(as, mi, rd, rs)		emit_dst(as, (mi), (rd), (rs), 0)
+#define emit_tg(as, mi, rt, rg)		emit_dst(as, (mi), (rg)&31, 0, (rt))
+
+static void emit_tsi(ASMState *as, MIPSIns mi, Reg rt, Reg rs, int32_t i)
+{
+  *--as->mcp = mi | MIPSF_T(rt) | MIPSF_S(rs) | (i & 0xffff);
+}
+
+#define emit_ti(as, mi, rt, i)		emit_tsi(as, (mi), (rt), 0, (i))
+#define emit_hsi(as, mi, rh, rs, i)	emit_tsi(as, (mi), (rh) & 31, (rs), (i))
+
+static void emit_fgh(ASMState *as, MIPSIns mi, Reg rf, Reg rg, Reg rh)
+{
+  *--as->mcp = mi | MIPSF_F(rf&31) | MIPSF_G(rg&31) | MIPSF_H(rh&31);
+}
+
+#define emit_fg(as, mi, rf, rg)		emit_fgh(as, (mi), (rf), (rg), 0)
+
+static void emit_rotr(ASMState *as, Reg dest, Reg src, Reg tmp, uint32_t shift)
+{
+  if (LJ_64 || (as->flags & JIT_F_MIPSXXR2)) {
+    emit_dta(as, MIPSI_ROTR, dest, src, shift);
+  } else {
+    emit_dst(as, MIPSI_OR, dest, dest, tmp);
+    emit_dta(as, MIPSI_SLL, dest, src, (-shift)&31);
+    emit_dta(as, MIPSI_SRL, tmp, src, shift);
+  }
+}
+
+#if LJ_64 || LJ_HASBUFFER
+static void emit_tsml(ASMState *as, MIPSIns mi, Reg rt, Reg rs, uint32_t msb,
+		      uint32_t lsb)
+{
+  *--as->mcp = mi | MIPSF_T(rt) | MIPSF_S(rs) | MIPSF_M(msb) | MIPSF_L(lsb);
+}
+#endif
+
+/* -- Emit loads/stores --------------------------------------------------- */
+
+/* Prefer rematerialization of BASE/L from global_State over spills. */
+#define emit_canremat(ref)	((ref) <= REF_BASE)
+
+/* Try to find a one step delta relative to another constant. */
+static int emit_kdelta1(ASMState *as, Reg rd, intptr_t i)
+{
+  RegSet work = ~as->freeset & RSET_GPR;
+  while (work) {
+    Reg r = rset_picktop(work);
+    IRRef ref = regcost_ref(as->cost[r]);
+    lj_assertA(r != rd, "dest reg %d not free", rd);
+    if (ref < ASMREF_L) {
+      intptr_t delta = (intptr_t)((uintptr_t)i -
+	(uintptr_t)(ra_iskref(ref) ? ra_krefk(as, ref) : get_kval(as, ref)));
+      if (checki16(delta)) {
+	emit_tsi(as, MIPSI_AADDIU, rd, r, delta);
+	return 1;
+      }
+    }
+    rset_clear(work, r);
+  }
+  return 0;  /* Failed. */
+}
+
+/* Load a 32 bit constant into a GPR. */
+static void emit_loadi(ASMState *as, Reg r, int32_t i)
+{
+  if (checki16(i)) {
+    emit_ti(as, MIPSI_LI, r, i);
+  } else {
+    if ((i & 0xffff)) {
+      intptr_t jgl = (intptr_t)(void *)J2G(as->J);
+      if ((uintptr_t)(i-jgl) < 65536) {
+	emit_tsi(as, MIPSI_ADDIU, r, RID_JGL, i-jgl-32768);
+	return;
+      } else if (emit_kdelta1(as, r, i)) {
+	return;
+      } else if ((i >> 16) == 0) {
+	emit_tsi(as, MIPSI_ORI, r, RID_ZERO, i);
+	return;
+      }
+      emit_tsi(as, MIPSI_ORI, r, r, i);
+    }
+    emit_ti(as, MIPSI_LUI, r, (i >> 16));
+  }
+}
+
+#if LJ_64
+/* Load a 64 bit constant into a GPR. */
+static void emit_loadu64(ASMState *as, Reg r, uint64_t u64)
+{
+  if (checki32((int64_t)u64)) {
+    emit_loadi(as, r, (int32_t)u64);
+  } else {
+    uint64_t delta = u64 - (uint64_t)(void *)J2G(as->J);
+    if (delta < 65536) {
+      emit_tsi(as, MIPSI_DADDIU, r, RID_JGL, (int32_t)(delta-32768));
+    } else if (emit_kdelta1(as, r, (intptr_t)u64)) {
+      return;
+    } else {
+      /* TODO MIPSR6: Use DAHI & DATI. Caveat: sign-extension. */
+      if ((u64 & 0xffff)) {
+	emit_tsi(as, MIPSI_ORI, r, r, u64 & 0xffff);
+      }
+      if (((u64 >> 16) & 0xffff)) {
+	emit_dta(as, MIPSI_DSLL, r, r, 16);
+	emit_tsi(as, MIPSI_ORI, r, r, (u64 >> 16) & 0xffff);
+	emit_dta(as, MIPSI_DSLL, r, r, 16);
+      } else {
+	emit_dta(as, MIPSI_DSLL32, r, r, 0);
+      }
+      emit_loadi(as, r, (int32_t)(u64 >> 32));
+    }
+    /* TODO: There are probably more optimization opportunities. */
+  }
+}
+
+#define emit_loada(as, r, addr)		emit_loadu64(as, (r), u64ptr((addr)))
+#else
+#define emit_loada(as, r, addr)		emit_loadi(as, (r), i32ptr((addr)))
+#endif
+
+static Reg ra_allock(ASMState *as, intptr_t k, RegSet allow);
+static void ra_allockreg(ASMState *as, intptr_t k, Reg r);
+
+/* Get/set from constant pointer. */
+static void emit_lsptr(ASMState *as, MIPSIns mi, Reg r, void *p, RegSet allow)
+{
+  intptr_t jgl = (intptr_t)(J2G(as->J));
+  intptr_t i = (intptr_t)(p);
+  Reg base;
+  if ((uint32_t)(i-jgl) < 65536) {
+    i = i-jgl-32768;
+    base = RID_JGL;
+  } else {
+    base = ra_allock(as, i-(int16_t)i, allow);
+  }
+  emit_tsi(as, mi, r, base, i);
+}
+
+#if LJ_64
+static void emit_loadk64(ASMState *as, Reg r, IRIns *ir)
+{
+  const uint64_t *k = &ir_k64(ir)->u64;
+  Reg r64 = r;
+  if (rset_test(RSET_FPR, r)) {
+    r64 = RID_TMP;
+    emit_tg(as, MIPSI_DMTC1, r64, r);
+  }
+  if ((uint32_t)((intptr_t)k-(intptr_t)J2G(as->J)) < 65536)
+    emit_lsptr(as, MIPSI_LD, r64, (void *)k, 0);
+  else
+    emit_loadu64(as, r64, *k);
+}
+#else
+#define emit_loadk64(as, r, ir) \
+  emit_lsptr(as, MIPSI_LDC1, ((r) & 31), (void *)&ir_knum((ir))->u64, RSET_GPR)
+#endif
+
+/* Get/set global_State fields. */
+static void emit_lsglptr(ASMState *as, MIPSIns mi, Reg r, int32_t ofs)
+{
+  emit_tsi(as, mi, r, RID_JGL, ofs-32768);
+}
+
+#define emit_getgl(as, r, field) \
+  emit_lsglptr(as, MIPSI_AL, (r), (int32_t)offsetof(global_State, field))
+#define emit_setgl(as, r, field) \
+  emit_lsglptr(as, MIPSI_AS, (r), (int32_t)offsetof(global_State, field))
+
+/* Trace number is determined from per-trace exit stubs. */
+#define emit_setvmstate(as, i)		UNUSED(i)
+
+/* -- Emit control-flow instructions -------------------------------------- */
+
+/* Label for internal jumps. */
+typedef MCode *MCLabel;
+
+/* Return label pointing to current PC. */
+#define emit_label(as)		((as)->mcp)
+
+static void emit_branch(ASMState *as, MIPSIns mi, Reg rs, Reg rt, MCode *target)
+{
+  MCode *p = as->mcp;
+  ptrdiff_t delta = target - p;
+  lj_assertA(((delta + 0x8000) >> 16) == 0, "branch target out of range");
+  *--p = mi | MIPSF_S(rs) | MIPSF_T(rt) | ((uint32_t)delta & 0xffffu);
+  as->mcp = p;
+}
+
+static void emit_jmp(ASMState *as, MCode *target)
+{
+  *--as->mcp = MIPSI_NOP;
+  emit_branch(as, MIPSI_B, RID_ZERO, RID_ZERO, (target));
+}
+
+static void emit_call(ASMState *as, void *target, int needcfa)
+{
+  MCode *p = as->mcp;
+#if LJ_TARGET_MIPSR6
+  ptrdiff_t delta = (char *)target - (char *)p;
+  if ((((delta>>2) + 0x02000000) >> 26) == 0) {  /* Try compact call first. */
+    *--p = MIPSI_BALC | (((uintptr_t)delta >>2) & 0x03ffffffu);
+    as->mcp = p;
+    return;
+  }
+#endif
+  *--p = MIPSI_NOP;  /* Delay slot. */
+  if ((((uintptr_t)target ^ (uintptr_t)p) >> 28) == 0) {
+#if !LJ_TARGET_MIPSR6
+    *--p = (((uintptr_t)target & 1) ? MIPSI_JALX : MIPSI_JAL) |
+	   (((uintptr_t)target >>2) & 0x03ffffffu);
+#else
+    *--p = MIPSI_JAL | (((uintptr_t)target >>2) & 0x03ffffffu);
+#endif
+  } else {  /* Target out of range: need indirect call. */
+    *--p = MIPSI_JALR | MIPSF_S(RID_CFUNCADDR);
+    needcfa = 1;
+  }
+  as->mcp = p;
+  if (needcfa) ra_allockreg(as, (intptr_t)target, RID_CFUNCADDR);
+}
+
+/* -- Emit generic operations --------------------------------------------- */
+
+#define emit_move(as, dst, src) \
+  emit_ds(as, MIPSI_MOVE, (dst), (src))
+
+/* Generic move between two regs. */
+static void emit_movrr(ASMState *as, IRIns *ir, Reg dst, Reg src)
+{
+  if (dst < RID_MAX_GPR)
+    emit_move(as, dst, src);
+  else
+    emit_fg(as, irt_isnum(ir->t) ? MIPSI_MOV_D : MIPSI_MOV_S, dst, src);
+}
+
+/* Generic load of register with base and (small) offset address. */
+static void emit_loadofs(ASMState *as, IRIns *ir, Reg r, Reg base, int32_t ofs)
+{
+  if (r < RID_MAX_GPR)
+    emit_tsi(as, irt_is64(ir->t) ? MIPSI_LD : MIPSI_LW, r, base, ofs);
+  else
+    emit_tsi(as, irt_isnum(ir->t) ? MIPSI_LDC1 : MIPSI_LWC1,
+	     (r & 31), base, ofs);
+}
+
+/* Generic store of register with base and (small) offset address. */
+static void emit_storeofs(ASMState *as, IRIns *ir, Reg r, Reg base, int32_t ofs)
+{
+  if (r < RID_MAX_GPR)
+    emit_tsi(as, irt_is64(ir->t) ? MIPSI_SD : MIPSI_SW, r, base, ofs);
+  else
+    emit_tsi(as, irt_isnum(ir->t) ? MIPSI_SDC1 : MIPSI_SWC1,
+	     (r&31), base, ofs);
+}
+
+/* Add offset to pointer. */
+static void emit_addptr(ASMState *as, Reg r, int32_t ofs)
+{
+  if (ofs) {
+    lj_assertA(checki16(ofs), "offset %d out of range", ofs);
+    emit_tsi(as, MIPSI_AADDIU, r, r, ofs);
+  }
+}
+
+#define emit_spsub(as, ofs)	emit_addptr(as, RID_SP, -(ofs))
+
diff --git a/libs/luajit-cmake/luajit/src/lj_emit_ppc.h b/libs/luajit-cmake/luajit/src/lj_emit_ppc.h
new file mode 100644
index 0000000..86760e7
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_emit_ppc.h
@@ -0,0 +1,238 @@
+/*
+** PPC instruction emitter.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* -- Emit basic instructions --------------------------------------------- */
+
+static void emit_tab(ASMState *as, PPCIns pi, Reg rt, Reg ra, Reg rb)
+{
+  *--as->mcp = pi | PPCF_T(rt) | PPCF_A(ra) | PPCF_B(rb);
+}
+
+#define emit_asb(as, pi, ra, rs, rb)	emit_tab(as, (pi), (rs), (ra), (rb))
+#define emit_as(as, pi, ra, rs)		emit_tab(as, (pi), (rs), (ra), 0)
+#define emit_ab(as, pi, ra, rb)		emit_tab(as, (pi), 0, (ra), (rb))
+
+static void emit_tai(ASMState *as, PPCIns pi, Reg rt, Reg ra, int32_t i)
+{
+  *--as->mcp = pi | PPCF_T(rt) | PPCF_A(ra) | (i & 0xffff);
+}
+
+#define emit_ti(as, pi, rt, i)		emit_tai(as, (pi), (rt), 0, (i))
+#define emit_ai(as, pi, ra, i)		emit_tai(as, (pi), 0, (ra), (i))
+#define emit_asi(as, pi, ra, rs, i)	emit_tai(as, (pi), (rs), (ra), (i))
+
+#define emit_fab(as, pi, rf, ra, rb) \
+  emit_tab(as, (pi), (rf)&31, (ra)&31, (rb)&31)
+#define emit_fb(as, pi, rf, rb)		emit_tab(as, (pi), (rf)&31, 0, (rb)&31)
+#define emit_fac(as, pi, rf, ra, rc) \
+  emit_tab(as, (pi) | PPCF_C((rc) & 31), (rf)&31, (ra)&31, 0)
+#define emit_facb(as, pi, rf, ra, rc, rb) \
+  emit_tab(as, (pi) | PPCF_C((rc) & 31), (rf)&31, (ra)&31, (rb)&31)
+#define emit_fai(as, pi, rf, ra, i)	emit_tai(as, (pi), (rf)&31, (ra), (i))
+
+static void emit_rot(ASMState *as, PPCIns pi, Reg ra, Reg rs,
+		     int32_t n, int32_t b, int32_t e)
+{
+  *--as->mcp = pi | PPCF_T(rs) | PPCF_A(ra) | PPCF_B(n) |
+	       PPCF_MB(b) | PPCF_ME(e);
+}
+
+static void emit_slwi(ASMState *as, Reg ra, Reg rs, int32_t n)
+{
+  lj_assertA(n >= 0 && n < 32, "shift out or range");
+  emit_rot(as, PPCI_RLWINM, ra, rs, n, 0, 31-n);
+}
+
+static void emit_rotlwi(ASMState *as, Reg ra, Reg rs, int32_t n)
+{
+  lj_assertA(n >= 0 && n < 32, "shift out or range");
+  emit_rot(as, PPCI_RLWINM, ra, rs, n, 0, 31);
+}
+
+/* -- Emit loads/stores --------------------------------------------------- */
+
+/* Prefer rematerialization of BASE/L from global_State over spills. */
+#define emit_canremat(ref)	((ref) <= REF_BASE)
+
+/* Try to find a one step delta relative to another constant. */
+static int emit_kdelta1(ASMState *as, Reg rd, int32_t i)
+{
+  RegSet work = ~as->freeset & RSET_GPR;
+  while (work) {
+    Reg r = rset_picktop(work);
+    IRRef ref = regcost_ref(as->cost[r]);
+    lj_assertA(r != rd, "dest reg %d not free", rd);
+    if (ref < ASMREF_L) {
+      int32_t delta = i - (ra_iskref(ref) ? ra_krefk(as, ref) : IR(ref)->i);
+      if (checki16(delta)) {
+	emit_tai(as, PPCI_ADDI, rd, r, delta);
+	return 1;
+      }
+    }
+    rset_clear(work, r);
+  }
+  return 0;  /* Failed. */
+}
+
+/* Load a 32 bit constant into a GPR. */
+static void emit_loadi(ASMState *as, Reg r, int32_t i)
+{
+  if (checki16(i)) {
+    emit_ti(as, PPCI_LI, r, i);
+  } else {
+    if ((i & 0xffff)) {
+      int32_t jgl = i32ptr(J2G(as->J));
+      if ((uint32_t)(i-jgl) < 65536) {
+	emit_tai(as, PPCI_ADDI, r, RID_JGL, i-jgl-32768);
+	return;
+      } else if (emit_kdelta1(as, r, i)) {
+	return;
+      }
+      emit_asi(as, PPCI_ORI, r, r, i);
+    }
+    emit_ti(as, PPCI_LIS, r, (i >> 16));
+  }
+}
+
+#define emit_loada(as, r, addr)		emit_loadi(as, (r), i32ptr((addr)))
+
+static Reg ra_allock(ASMState *as, intptr_t k, RegSet allow);
+
+/* Get/set from constant pointer. */
+static void emit_lsptr(ASMState *as, PPCIns pi, Reg r, void *p, RegSet allow)
+{
+  int32_t jgl = i32ptr(J2G(as->J));
+  int32_t i = i32ptr(p);
+  Reg base;
+  if ((uint32_t)(i-jgl) < 65536) {
+    i = i-jgl-32768;
+    base = RID_JGL;
+  } else {
+    base = ra_allock(as, i-(int16_t)i, allow);
+  }
+  emit_tai(as, pi, r, base, i);
+}
+
+#define emit_loadk64(as, r, ir) \
+  emit_lsptr(as, PPCI_LFD, ((r) & 31), (void *)&ir_knum((ir))->u64, RSET_GPR)
+
+/* Get/set global_State fields. */
+static void emit_lsglptr(ASMState *as, PPCIns pi, Reg r, int32_t ofs)
+{
+  emit_tai(as, pi, r, RID_JGL, ofs-32768);
+}
+
+#define emit_getgl(as, r, field) \
+  emit_lsglptr(as, PPCI_LWZ, (r), (int32_t)offsetof(global_State, field))
+#define emit_setgl(as, r, field) \
+  emit_lsglptr(as, PPCI_STW, (r), (int32_t)offsetof(global_State, field))
+
+/* Trace number is determined from per-trace exit stubs. */
+#define emit_setvmstate(as, i)		UNUSED(i)
+
+/* -- Emit control-flow instructions -------------------------------------- */
+
+/* Label for internal jumps. */
+typedef MCode *MCLabel;
+
+/* Return label pointing to current PC. */
+#define emit_label(as)		((as)->mcp)
+
+static void emit_condbranch(ASMState *as, PPCIns pi, PPCCC cc, MCode *target)
+{
+  MCode *p = --as->mcp;
+  ptrdiff_t delta = (char *)target - (char *)p;
+  lj_assertA(((delta + 0x8000) >> 16) == 0, "branch target out of range");
+  pi ^= (delta & 0x8000) * (PPCF_Y/0x8000);
+  *p = pi | PPCF_CC(cc) | ((uint32_t)delta & 0xffffu);
+}
+
+static void emit_jmp(ASMState *as, MCode *target)
+{
+  MCode *p = --as->mcp;
+  ptrdiff_t delta = (char *)target - (char *)p;
+  *p = PPCI_B | (delta & 0x03fffffcu);
+}
+
+static void emit_call(ASMState *as, void *target)
+{
+  MCode *p = --as->mcp;
+  ptrdiff_t delta = (char *)target - (char *)p;
+  if ((((delta>>2) + 0x00800000) >> 24) == 0) {
+    *p = PPCI_BL | (delta & 0x03fffffcu);
+  } else {  /* Target out of range: need indirect call. Don't use arg reg. */
+    RegSet allow = RSET_GPR & ~RSET_RANGE(RID_R0, REGARG_LASTGPR+1);
+    Reg r = ra_allock(as, i32ptr(target), allow);
+    *p = PPCI_BCTRL;
+    p[-1] = PPCI_MTCTR | PPCF_T(r);
+    as->mcp = p-1;
+  }
+}
+
+/* -- Emit generic operations --------------------------------------------- */
+
+#define emit_mr(as, dst, src) \
+  emit_asb(as, PPCI_MR, (dst), (src), (src))
+
+/* Generic move between two regs. */
+static void emit_movrr(ASMState *as, IRIns *ir, Reg dst, Reg src)
+{
+  UNUSED(ir);
+  if (dst < RID_MAX_GPR)
+    emit_mr(as, dst, src);
+  else
+    emit_fb(as, PPCI_FMR, dst, src);
+}
+
+/* Generic load of register with base and (small) offset address. */
+static void emit_loadofs(ASMState *as, IRIns *ir, Reg r, Reg base, int32_t ofs)
+{
+  if (r < RID_MAX_GPR)
+    emit_tai(as, PPCI_LWZ, r, base, ofs);
+  else
+    emit_fai(as, irt_isnum(ir->t) ? PPCI_LFD : PPCI_LFS, r, base, ofs);
+}
+
+/* Generic store of register with base and (small) offset address. */
+static void emit_storeofs(ASMState *as, IRIns *ir, Reg r, Reg base, int32_t ofs)
+{
+  if (r < RID_MAX_GPR)
+    emit_tai(as, PPCI_STW, r, base, ofs);
+  else
+    emit_fai(as, irt_isnum(ir->t) ? PPCI_STFD : PPCI_STFS, r, base, ofs);
+}
+
+/* Emit a compare (for equality) with a constant operand. */
+static void emit_cmpi(ASMState *as, Reg r, int32_t k)
+{
+  if (checki16(k)) {
+    emit_ai(as, PPCI_CMPWI, r, k);
+  } else if (checku16(k)) {
+    emit_ai(as, PPCI_CMPLWI, r, k);
+  } else {
+    emit_ai(as, PPCI_CMPLWI, RID_TMP, k);
+    emit_asi(as, PPCI_XORIS, RID_TMP, r, (k >> 16));
+  }
+}
+
+/* Add offset to pointer. */
+static void emit_addptr(ASMState *as, Reg r, int32_t ofs)
+{
+  if (ofs) {
+    emit_tai(as, PPCI_ADDI, r, r, ofs);
+    if (!checki16(ofs))
+      emit_tai(as, PPCI_ADDIS, r, r, (ofs + 32768) >> 16);
+  }
+}
+
+static void emit_spsub(ASMState *as, int32_t ofs)
+{
+  if (ofs) {
+    emit_tai(as, PPCI_STWU, RID_TMP, RID_SP, -ofs);
+    emit_tai(as, PPCI_ADDI, RID_TMP, RID_SP,
+	     CFRAME_SIZE + (as->parent ? as->parent->spadjust : 0));
+  }
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_emit_x86.h b/libs/luajit-cmake/luajit/src/lj_emit_x86.h
new file mode 100644
index 0000000..3d3beda
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_emit_x86.h
@@ -0,0 +1,572 @@
+/*
+** x86/x64 instruction emitter.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* -- Emit basic instructions --------------------------------------------- */
+
+#define MODRM(mode, r1, r2)	((MCode)((mode)+(((r1)&7)<<3)+((r2)&7)))
+
+#if LJ_64
+#define REXRB(p, rr, rb) \
+    { MCode rex = 0x40 + (((rr)>>1)&4) + (((rb)>>3)&1); \
+      if (rex != 0x40) *--(p) = rex; }
+#define FORCE_REX		0x200
+#define REX_64			(FORCE_REX|0x080000)
+#define VEX_64			0x800000
+#else
+#define REXRB(p, rr, rb)	((void)0)
+#define FORCE_REX		0
+#define REX_64			0
+#define VEX_64			0
+#endif
+#if LJ_GC64
+#define REX_GC64		REX_64
+#else
+#define REX_GC64		0
+#endif
+
+#define emit_i8(as, i)		(*--as->mcp = (MCode)(i))
+#define emit_i32(as, i)		(*(int32_t *)(as->mcp-4) = (i), as->mcp -= 4)
+#define emit_u32(as, u)		(*(uint32_t *)(as->mcp-4) = (u), as->mcp -= 4)
+
+#define emit_x87op(as, xo) \
+  (*(uint16_t *)(as->mcp-2) = (uint16_t)(xo), as->mcp -= 2)
+
+/* op */
+static LJ_AINLINE MCode *emit_op(x86Op xo, Reg rr, Reg rb, Reg rx,
+				 MCode *p, int delta)
+{
+  int n = (int8_t)xo;
+  if (n == -60) {  /* VEX-encoded instruction */
+#if LJ_64
+    xo ^= (((rr>>1)&4)+((rx>>2)&2)+((rb>>3)&1))<<13;
+#endif
+    *(uint32_t *)(p+delta-5) = (uint32_t)xo;
+    return p+delta-5;
+  }
+#if defined(__GNUC__) || defined(__clang__)
+  if (__builtin_constant_p(xo) && n == -2)
+    p[delta-2] = (MCode)(xo >> 24);
+  else if (__builtin_constant_p(xo) && n == -3)
+    *(uint16_t *)(p+delta-3) = (uint16_t)(xo >> 16);
+  else
+#endif
+    *(uint32_t *)(p+delta-5) = (uint32_t)xo;
+  p += n + delta;
+#if LJ_64
+  {
+    uint32_t rex = 0x40 + ((rr>>1)&(4+(FORCE_REX>>1)))+((rx>>2)&2)+((rb>>3)&1);
+    if (rex != 0x40) {
+      rex |= (rr >> 16);
+      if (n == -4) { *p = (MCode)rex; rex = (MCode)(xo >> 8); }
+      else if ((xo & 0xffffff) == 0x6600fd) { *p = (MCode)rex; rex = 0x66; }
+      *--p = (MCode)rex;
+    }
+  }
+#else
+  UNUSED(rr); UNUSED(rb); UNUSED(rx);
+#endif
+  return p;
+}
+
+/* op + modrm */
+#define emit_opm(xo, mode, rr, rb, p, delta) \
+  (p[(delta)-1] = MODRM((mode), (rr), (rb)), \
+   emit_op((xo), (rr), (rb), 0, (p), (delta)))
+
+/* op + modrm + sib */
+#define emit_opmx(xo, mode, scale, rr, rb, rx, p) \
+  (p[-1] = MODRM((scale), (rx), (rb)), \
+   p[-2] = MODRM((mode), (rr), RID_ESP), \
+   emit_op((xo), (rr), (rb), (rx), (p), -1))
+
+/* op r1, r2 */
+static void emit_rr(ASMState *as, x86Op xo, Reg r1, Reg r2)
+{
+  MCode *p = as->mcp;
+  as->mcp = emit_opm(xo, XM_REG, r1, r2, p, 0);
+}
+
+#if LJ_64 && defined(LUA_USE_ASSERT)
+/* [addr] is sign-extended in x64 and must be in lower 2G (not 4G). */
+static int32_t ptr2addr(const void *p)
+{
+  lj_assertX((uintptr_t)p < (uintptr_t)0x80000000, "pointer outside 2G range");
+  return i32ptr(p);
+}
+#else
+#define ptr2addr(p)	(i32ptr((p)))
+#endif
+
+/* op r, [base+ofs] */
+static void emit_rmro(ASMState *as, x86Op xo, Reg rr, Reg rb, int32_t ofs)
+{
+  MCode *p = as->mcp;
+  x86Mode mode;
+  if (ra_hasreg(rb)) {
+    if (LJ_GC64 && rb == RID_RIP) {
+      mode = XM_OFS0;
+      p -= 4;
+      *(int32_t *)p = ofs;
+    } else if (ofs == 0 && (rb&7) != RID_EBP) {
+      mode = XM_OFS0;
+    } else if (checki8(ofs)) {
+      *--p = (MCode)ofs;
+      mode = XM_OFS8;
+    } else {
+      p -= 4;
+      *(int32_t *)p = ofs;
+      mode = XM_OFS32;
+    }
+    if ((rb&7) == RID_ESP)
+      *--p = MODRM(XM_SCALE1, RID_ESP, RID_ESP);
+  } else {
+    *(int32_t *)(p-4) = ofs;
+#if LJ_64
+    p[-5] = MODRM(XM_SCALE1, RID_ESP, RID_EBP);
+    p -= 5;
+    rb = RID_ESP;
+#else
+    p -= 4;
+    rb = RID_EBP;
+#endif
+    mode = XM_OFS0;
+  }
+  as->mcp = emit_opm(xo, mode, rr, rb, p, 0);
+}
+
+/* op r, [base+idx*scale+ofs] */
+static void emit_rmrxo(ASMState *as, x86Op xo, Reg rr, Reg rb, Reg rx,
+		       x86Mode scale, int32_t ofs)
+{
+  MCode *p = as->mcp;
+  x86Mode mode;
+  if (ofs == 0 && (rb&7) != RID_EBP) {
+    mode = XM_OFS0;
+  } else if (checki8(ofs)) {
+    mode = XM_OFS8;
+    *--p = (MCode)ofs;
+  } else {
+    mode = XM_OFS32;
+    p -= 4;
+    *(int32_t *)p = ofs;
+  }
+  as->mcp = emit_opmx(xo, mode, scale, rr, rb, rx, p);
+}
+
+/* op r, i */
+static void emit_gri(ASMState *as, x86Group xg, Reg rb, int32_t i)
+{
+  MCode *p = as->mcp;
+  x86Op xo;
+  if (checki8(i)) {
+    *--p = (MCode)i;
+    xo = XG_TOXOi8(xg);
+  } else {
+    p -= 4;
+    *(int32_t *)p = i;
+    xo = XG_TOXOi(xg);
+  }
+  as->mcp = emit_opm(xo, XM_REG, (Reg)(xg & 7) | (rb & REX_64), rb, p, 0);
+}
+
+/* op [base+ofs], i */
+static void emit_gmroi(ASMState *as, x86Group xg, Reg rb, int32_t ofs,
+		       int32_t i)
+{
+  x86Op xo;
+  if (checki8(i)) {
+    emit_i8(as, i);
+    xo = XG_TOXOi8(xg);
+  } else {
+    emit_i32(as, i);
+    xo = XG_TOXOi(xg);
+  }
+  emit_rmro(as, xo, (Reg)(xg & 7), rb, ofs);
+}
+
+#define emit_shifti(as, xg, r, i) \
+  (emit_i8(as, (i)), emit_rr(as, XO_SHIFTi, (Reg)(xg), (r)))
+
+/* op r, rm/mrm */
+static void emit_mrm(ASMState *as, x86Op xo, Reg rr, Reg rb)
+{
+  MCode *p = as->mcp;
+  x86Mode mode = XM_REG;
+  if (rb == RID_MRM) {
+    rb = as->mrm.base;
+    if (rb == RID_NONE) {
+      rb = RID_EBP;
+      mode = XM_OFS0;
+      p -= 4;
+      *(int32_t *)p = as->mrm.ofs;
+      if (as->mrm.idx != RID_NONE)
+	goto mrmidx;
+#if LJ_64
+      *--p = MODRM(XM_SCALE1, RID_ESP, RID_EBP);
+      rb = RID_ESP;
+#endif
+    } else if (LJ_GC64 && rb == RID_RIP) {
+      lj_assertA(as->mrm.idx == RID_NONE, "RIP-rel mrm cannot have index");
+      mode = XM_OFS0;
+      p -= 4;
+      *(int32_t *)p = as->mrm.ofs;
+    } else {
+      if (as->mrm.ofs == 0 && (rb&7) != RID_EBP) {
+	mode = XM_OFS0;
+      } else if (checki8(as->mrm.ofs)) {
+	*--p = (MCode)as->mrm.ofs;
+	mode = XM_OFS8;
+      } else {
+	p -= 4;
+	*(int32_t *)p = as->mrm.ofs;
+	mode = XM_OFS32;
+      }
+      if (as->mrm.idx != RID_NONE) {
+      mrmidx:
+	as->mcp = emit_opmx(xo, mode, as->mrm.scale, rr, rb, as->mrm.idx, p);
+	return;
+      }
+      if ((rb&7) == RID_ESP)
+	*--p = MODRM(XM_SCALE1, RID_ESP, RID_ESP);
+    }
+  }
+  as->mcp = emit_opm(xo, mode, rr, rb, p, 0);
+}
+
+/* op rm/mrm, i */
+static void emit_gmrmi(ASMState *as, x86Group xg, Reg rb, int32_t i)
+{
+  x86Op xo;
+  if (checki8(i)) {
+    emit_i8(as, i);
+    xo = XG_TOXOi8(xg);
+  } else {
+    emit_i32(as, i);
+    xo = XG_TOXOi(xg);
+  }
+  emit_mrm(as, xo, (Reg)(xg & 7) | (rb & REX_64), (rb & ~REX_64));
+}
+
+/* -- Emit loads/stores --------------------------------------------------- */
+
+/* mov [base+ofs], i */
+static void emit_movmroi(ASMState *as, Reg base, int32_t ofs, int32_t i)
+{
+  emit_i32(as, i);
+  emit_rmro(as, XO_MOVmi, 0, base, ofs);
+}
+
+/* mov [base+ofs], r */
+#define emit_movtomro(as, r, base, ofs) \
+  emit_rmro(as, XO_MOVto, (r), (base), (ofs))
+
+/* Get/set global_State fields. */
+#define emit_opgl(as, xo, r, field) \
+  emit_rma(as, (xo), (r), (void *)&J2G(as->J)->field)
+#define emit_getgl(as, r, field) emit_opgl(as, XO_MOV, (r)|REX_GC64, field)
+#define emit_setgl(as, r, field) emit_opgl(as, XO_MOVto, (r)|REX_GC64, field)
+
+#define emit_setvmstate(as, i) \
+  (emit_i32(as, i), emit_opgl(as, XO_MOVmi, 0, vmstate))
+
+/* mov r, i / xor r, r */
+static void emit_loadi(ASMState *as, Reg r, int32_t i)
+{
+  /* XOR r,r is shorter, but modifies the flags. This is bad for HIOP/jcc. */
+  if (i == 0 && !(LJ_32 && (IR(as->curins)->o == IR_HIOP ||
+			    (as->curins+1 < as->T->nins &&
+			     IR(as->curins+1)->o == IR_HIOP))) &&
+		!((*as->mcp == 0x0f && (as->mcp[1] & 0xf0) == XI_JCCn) ||
+		  (*as->mcp & 0xf0) == XI_JCCs)) {
+    emit_rr(as, XO_ARITH(XOg_XOR), r, r);
+  } else {
+    MCode *p = as->mcp;
+    *(int32_t *)(p-4) = i;
+    p[-5] = (MCode)(XI_MOVri+(r&7));
+    p -= 5;
+    REXRB(p, 0, r);
+    as->mcp = p;
+  }
+}
+
+#if LJ_GC64
+#define dispofs(as, k) \
+  ((intptr_t)((uintptr_t)(k) - (uintptr_t)J2GG(as->J)->dispatch))
+#define mcpofs(as, k) \
+  ((intptr_t)((uintptr_t)(k) - (uintptr_t)as->mcp))
+#define mctopofs(as, k) \
+  ((intptr_t)((uintptr_t)(k) - (uintptr_t)as->mctop))
+/* mov r, addr */
+#define emit_loada(as, r, addr) \
+  emit_loadu64(as, (r), (uintptr_t)(addr))
+#else
+/* mov r, addr */
+#define emit_loada(as, r, addr) \
+  emit_loadi(as, (r), ptr2addr((addr)))
+#endif
+
+#if LJ_64
+/* mov r, imm64 or shorter 32 bit extended load. */
+static void emit_loadu64(ASMState *as, Reg r, uint64_t u64)
+{
+  if (checku32(u64)) {  /* 32 bit load clears upper 32 bits. */
+    emit_loadi(as, r, (int32_t)u64);
+  } else if (checki32((int64_t)u64)) {  /* Sign-extended 32 bit load. */
+    MCode *p = as->mcp;
+    *(int32_t *)(p-4) = (int32_t)u64;
+    as->mcp = emit_opm(XO_MOVmi, XM_REG, REX_64, r, p, -4);
+#if LJ_GC64
+  } else if (checki32(dispofs(as, u64))) {
+    emit_rmro(as, XO_LEA, r|REX_64, RID_DISPATCH, (int32_t)dispofs(as, u64));
+  } else if (checki32(mcpofs(as, u64)) && checki32(mctopofs(as, u64))) {
+    /* Since as->realign assumes the code size doesn't change, check
+    ** RIP-relative addressing reachability for both as->mcp and as->mctop.
+    */
+    emit_rmro(as, XO_LEA, r|REX_64, RID_RIP, (int32_t)mcpofs(as, u64));
+#endif
+  } else {  /* Full-size 64 bit load. */
+    MCode *p = as->mcp;
+    *(uint64_t *)(p-8) = u64;
+    p[-9] = (MCode)(XI_MOVri+(r&7));
+    p[-10] = 0x48 + ((r>>3)&1);
+    p -= 10;
+    as->mcp = p;
+  }
+}
+#endif
+
+/* op r, [addr] */
+static void emit_rma(ASMState *as, x86Op xo, Reg rr, const void *addr)
+{
+#if LJ_GC64
+  if (checki32(dispofs(as, addr))) {
+    emit_rmro(as, xo, rr, RID_DISPATCH, (int32_t)dispofs(as, addr));
+  } else if (checki32(mcpofs(as, addr)) && checki32(mctopofs(as, addr))) {
+    emit_rmro(as, xo, rr, RID_RIP, (int32_t)mcpofs(as, addr));
+  } else if (!checki32((intptr_t)addr)) {
+    Reg ra = (rr & 15);
+    if (xo != XO_MOV) {
+      /* We can't allocate a register here. Use and restore DISPATCH. Ugly. */
+      uint64_t dispaddr = (uintptr_t)J2GG(as->J)->dispatch;
+      uint8_t i8 = xo == XO_GROUP3b ? *as->mcp++ : 0;
+      ra = RID_DISPATCH;
+      if (checku32(dispaddr)) {
+	emit_loadi(as, ra, (int32_t)dispaddr);
+      } else {  /* Full-size 64 bit load. */
+	MCode *p = as->mcp;
+	*(uint64_t *)(p-8) = dispaddr;
+	p[-9] = (MCode)(XI_MOVri+(ra&7));
+	p[-10] = 0x48 + ((ra>>3)&1);
+	p -= 10;
+	as->mcp = p;
+      }
+      if (xo == XO_GROUP3b) emit_i8(as, i8);
+    }
+    emit_rmro(as, xo, rr, ra, 0);
+    emit_loadu64(as, ra, (uintptr_t)addr);
+  } else
+#endif
+  {
+    MCode *p = as->mcp;
+    *(int32_t *)(p-4) = ptr2addr(addr);
+#if LJ_64
+    p[-5] = MODRM(XM_SCALE1, RID_ESP, RID_EBP);
+    as->mcp = emit_opm(xo, XM_OFS0, rr, RID_ESP, p, -5);
+#else
+    as->mcp = emit_opm(xo, XM_OFS0, rr, RID_EBP, p, -4);
+#endif
+  }
+}
+
+/* Load 64 bit IR constant into register. */
+static void emit_loadk64(ASMState *as, Reg r, IRIns *ir)
+{
+  Reg r64;
+  x86Op xo;
+  const uint64_t *k = &ir_k64(ir)->u64;
+  if (rset_test(RSET_FPR, r)) {
+    r64 = r;
+    xo = XO_MOVSD;
+  } else {
+    r64 = r | REX_64;
+    xo = XO_MOV;
+  }
+  if (*k == 0) {
+    emit_rr(as, rset_test(RSET_FPR, r) ? XO_XORPS : XO_ARITH(XOg_XOR), r, r);
+#if LJ_GC64
+  } else if (checki32((intptr_t)k) || checki32(dispofs(as, k)) ||
+	     (checki32(mcpofs(as, k)) && checki32(mctopofs(as, k)))) {
+    emit_rma(as, xo, r64, k);
+  } else {
+    if (ir->i) {
+      lj_assertA(*k == *(uint64_t*)(as->mctop - ir->i),
+		 "bad interned 64 bit constant");
+    } else if (as->curins <= as->stopins && rset_test(RSET_GPR, r)) {
+      emit_loadu64(as, r, *k);
+      return;
+    } else {
+      /* If all else fails, add the FP constant at the MCode area bottom. */
+      while ((uintptr_t)as->mcbot & 7) *as->mcbot++ = XI_INT3;
+      *(uint64_t *)as->mcbot = *k;
+      ir->i = (int32_t)(as->mctop - as->mcbot);
+      as->mcbot += 8;
+      as->mclim = as->mcbot + MCLIM_REDZONE;
+      lj_mcode_commitbot(as->J, as->mcbot);
+    }
+    emit_rmro(as, xo, r64, RID_RIP, (int32_t)mcpofs(as, as->mctop - ir->i));
+#else
+  } else {
+    emit_rma(as, xo, r64, k);
+#endif
+  }
+}
+
+/* -- Emit control-flow instructions -------------------------------------- */
+
+/* Label for short jumps. */
+typedef MCode *MCLabel;
+
+#if LJ_32 && LJ_HASFFI
+/* jmp short target */
+static void emit_sjmp(ASMState *as, MCLabel target)
+{
+  MCode *p = as->mcp;
+  ptrdiff_t delta = target - p;
+  lj_assertA(delta == (int8_t)delta, "short jump target out of range");
+  p[-1] = (MCode)(int8_t)delta;
+  p[-2] = XI_JMPs;
+  as->mcp = p - 2;
+}
+#endif
+
+/* jcc short target */
+static void emit_sjcc(ASMState *as, int cc, MCLabel target)
+{
+  MCode *p = as->mcp;
+  ptrdiff_t delta = target - p;
+  lj_assertA(delta == (int8_t)delta, "short jump target out of range");
+  p[-1] = (MCode)(int8_t)delta;
+  p[-2] = (MCode)(XI_JCCs+(cc&15));
+  as->mcp = p - 2;
+}
+
+/* jcc short (pending target) */
+static MCLabel emit_sjcc_label(ASMState *as, int cc)
+{
+  MCode *p = as->mcp;
+  p[-1] = 0;
+  p[-2] = (MCode)(XI_JCCs+(cc&15));
+  as->mcp = p - 2;
+  return p;
+}
+
+/* Fixup jcc short target. */
+static void emit_sfixup(ASMState *as, MCLabel source)
+{
+  source[-1] = (MCode)(as->mcp-source);
+}
+
+/* Return label pointing to current PC. */
+#define emit_label(as)		((as)->mcp)
+
+/* Compute relative 32 bit offset for jump and call instructions. */
+static LJ_AINLINE int32_t jmprel(jit_State *J, MCode *p, MCode *target)
+{
+  ptrdiff_t delta = target - p;
+  UNUSED(J);
+  lj_assertJ(delta == (int32_t)delta, "jump target out of range");
+  return (int32_t)delta;
+}
+
+/* jcc target */
+static void emit_jcc(ASMState *as, int cc, MCode *target)
+{
+  MCode *p = as->mcp;
+  *(int32_t *)(p-4) = jmprel(as->J, p, target);
+  p[-5] = (MCode)(XI_JCCn+(cc&15));
+  p[-6] = 0x0f;
+  as->mcp = p - 6;
+}
+
+/* jmp target */
+static void emit_jmp(ASMState *as, MCode *target)
+{
+  MCode *p = as->mcp;
+  *(int32_t *)(p-4) = jmprel(as->J, p, target);
+  p[-5] = XI_JMP;
+  as->mcp = p - 5;
+}
+
+/* call target */
+static void emit_call_(ASMState *as, MCode *target)
+{
+  MCode *p = as->mcp;
+#if LJ_64
+  if (target-p != (int32_t)(target-p)) {
+    /* Assumes RID_RET is never an argument to calls and always clobbered. */
+    emit_rr(as, XO_GROUP5, XOg_CALL, RID_RET);
+    emit_loadu64(as, RID_RET, (uint64_t)target);
+    return;
+  }
+#endif
+  *(int32_t *)(p-4) = jmprel(as->J, p, target);
+  p[-5] = XI_CALL;
+  as->mcp = p - 5;
+}
+
+#define emit_call(as, f)	emit_call_(as, (MCode *)(void *)(f))
+
+/* -- Emit generic operations --------------------------------------------- */
+
+/* Use 64 bit operations to handle 64 bit IR types. */
+#if LJ_64
+#define REX_64IR(ir, r)		((r) + (irt_is64((ir)->t) ? REX_64 : 0))
+#define VEX_64IR(ir, r)		((r) + (irt_is64((ir)->t) ? VEX_64 : 0))
+#else
+#define REX_64IR(ir, r)		(r)
+#define VEX_64IR(ir, r)		(r)
+#endif
+
+/* Generic move between two regs. */
+static void emit_movrr(ASMState *as, IRIns *ir, Reg dst, Reg src)
+{
+  UNUSED(ir);
+  if (dst < RID_MAX_GPR)
+    emit_rr(as, XO_MOV, REX_64IR(ir, dst), src);
+  else
+    emit_rr(as, XO_MOVAPS, dst, src);
+}
+
+/* Generic load of register with base and (small) offset address. */
+static void emit_loadofs(ASMState *as, IRIns *ir, Reg r, Reg base, int32_t ofs)
+{
+  if (r < RID_MAX_GPR)
+    emit_rmro(as, XO_MOV, REX_64IR(ir, r), base, ofs);
+  else
+    emit_rmro(as, irt_isnum(ir->t) ? XO_MOVSD : XO_MOVSS, r, base, ofs);
+}
+
+/* Generic store of register with base and (small) offset address. */
+static void emit_storeofs(ASMState *as, IRIns *ir, Reg r, Reg base, int32_t ofs)
+{
+  if (r < RID_MAX_GPR)
+    emit_rmro(as, XO_MOVto, REX_64IR(ir, r), base, ofs);
+  else
+    emit_rmro(as, irt_isnum(ir->t) ? XO_MOVSDto : XO_MOVSSto, r, base, ofs);
+}
+
+/* Add offset to pointer. */
+static void emit_addptr(ASMState *as, Reg r, int32_t ofs)
+{
+  if (ofs) {
+    emit_gri(as, XG_ARITHi(XOg_ADD), r|REX_GC64, ofs);
+  }
+}
+
+#define emit_spsub(as, ofs)	emit_addptr(as, RID_ESP|REX_64, -(ofs))
+
+/* Prefer rematerialization of BASE/L from global_State over spills. */
+#define emit_canremat(ref)	((ref) <= REF_BASE)
+
diff --git a/libs/luajit-cmake/luajit/src/lj_err.c b/libs/luajit-cmake/luajit/src/lj_err.c
new file mode 100644
index 0000000..283c3d1
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_err.c
@@ -0,0 +1,1098 @@
+/*
+** Error handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_err_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_str.h"
+#include "lj_func.h"
+#include "lj_state.h"
+#include "lj_frame.h"
+#include "lj_ff.h"
+#include "lj_trace.h"
+#include "lj_vm.h"
+#include "lj_strfmt.h"
+
+/*
+** LuaJIT can either use internal or external frame unwinding:
+**
+** - Internal frame unwinding (INT) is free-standing and doesn't require
+**   any OS or library support.
+**
+** - External frame unwinding (EXT) uses the system-provided unwind handler.
+**
+** Pros and Cons:
+**
+** - EXT requires unwind tables for *all* functions on the C stack between
+**   the pcall/catch and the error/throw. C modules used by Lua code can
+**   throw errors, so these need to have unwind tables, too. Transitively
+**   this applies to all system libraries used by C modules -- at least
+**   when they have callbacks which may throw an error.
+**
+** - INT is faster when actually throwing errors, but this happens rarely.
+**   Setting up error handlers is zero-cost in any case.
+**
+** - INT needs to save *all* callee-saved registers when entering the
+**   interpreter. EXT only needs to save those actually used inside the
+**   interpreter. JIT-compiled code may need to save some more.
+**
+** - EXT provides full interoperability with C++ exceptions. You can throw
+**   Lua errors or C++ exceptions through a mix of Lua frames and C++ frames.
+**   C++ destructors are called as needed. C++ exceptions caught by pcall
+**   are converted to the string "C++ exception". Lua errors can be caught
+**   with catch (...) in C++.
+**
+** - INT has only limited support for automatically catching C++ exceptions
+**   on POSIX systems using DWARF2 stack unwinding. Other systems may use
+**   the wrapper function feature. Lua errors thrown through C++ frames
+**   cannot be caught by C++ code and C++ destructors are not run.
+**
+** - EXT can handle errors from internal helper functions that are called
+**   from JIT-compiled code (except for Windows/x86 and 32 bit ARM).
+**   INT has no choice but to call the panic handler, if this happens.
+**   Note: this is mainly relevant for out-of-memory errors.
+**
+** EXT is the default on all systems where the toolchain produces unwind
+** tables by default (*). This is hard-coded and/or detected in src/Makefile.
+** You can thwart the detection with: TARGET_XCFLAGS=-DLUAJIT_UNWIND_INTERNAL
+**
+** INT is the default on all other systems.
+**
+** EXT can be manually enabled for toolchains that are able to produce
+** conforming unwind tables:
+**   "TARGET_XCFLAGS=-funwind-tables -DLUAJIT_UNWIND_EXTERNAL"
+** As explained above, *all* C code used directly or indirectly by LuaJIT
+** must be compiled with -funwind-tables (or -fexceptions). C++ code must
+** *not* be compiled with -fno-exceptions.
+**
+** If you're unsure whether error handling inside the VM works correctly,
+** try running this and check whether it prints "OK":
+**
+**   luajit -e "print(select(2, load('OK')):match('OK'))"
+**
+** (*) Originally, toolchains only generated unwind tables for C++ code. For
+** interoperability reasons, this can be manually enabled for plain C code,
+** too (with -funwind-tables). With the introduction of the x64 architecture,
+** the corresponding POSIX and Windows ABIs mandated unwind tables for all
+** code. Over the following years most desktop and server platforms have
+** enabled unwind tables by default on all architectures. OTOH mobile and
+** embedded platforms do not consistently mandate unwind tables.
+*/
+
+/* -- Error messages ------------------------------------------------------ */
+
+/* Error message strings. */
+LJ_DATADEF const char *lj_err_allmsg =
+#define ERRDEF(name, msg)	msg "\0"
+#include "lj_errmsg.h"
+;
+
+/* -- Internal frame unwinding -------------------------------------------- */
+
+/* Unwind Lua stack and move error message to new top. */
+LJ_NOINLINE static void unwindstack(lua_State *L, TValue *top)
+{
+  lj_func_closeuv(L, top);
+  if (top < L->top-1) {
+    copyTV(L, top, L->top-1);
+    L->top = top+1;
+  }
+  lj_state_relimitstack(L);
+}
+
+/* Unwind until stop frame. Optionally cleanup frames. */
+static void *err_unwind(lua_State *L, void *stopcf, int errcode)
+{
+  TValue *frame = L->base-1;
+  void *cf = L->cframe;
+  while (cf) {
+    int32_t nres = cframe_nres(cframe_raw(cf));
+    if (nres < 0) {  /* C frame without Lua frame? */
+      TValue *top = restorestack(L, -nres);
+      if (frame < top) {  /* Frame reached? */
+	if (errcode) {
+	  L->base = frame+1;
+	  L->cframe = cframe_prev(cf);
+	  unwindstack(L, top);
+	}
+	return cf;
+      }
+    }
+    if (frame <= tvref(L->stack)+LJ_FR2)
+      break;
+    switch (frame_typep(frame)) {
+    case FRAME_LUA:  /* Lua frame. */
+    case FRAME_LUAP:
+      frame = frame_prevl(frame);
+      break;
+    case FRAME_C:  /* C frame. */
+    unwind_c:
+#if LJ_UNWIND_EXT
+      if (errcode) {
+	L->base = frame_prevd(frame) + 1;
+	L->cframe = cframe_prev(cf);
+	unwindstack(L, frame - LJ_FR2);
+      } else if (cf != stopcf) {
+	cf = cframe_prev(cf);
+	frame = frame_prevd(frame);
+	break;
+      }
+      return NULL;  /* Continue unwinding. */
+#else
+      UNUSED(stopcf);
+      cf = cframe_prev(cf);
+      frame = frame_prevd(frame);
+      break;
+#endif
+    case FRAME_CP:  /* Protected C frame. */
+      if (cframe_canyield(cf)) {  /* Resume? */
+	if (errcode) {
+	  hook_leave(G(L));  /* Assumes nobody uses coroutines inside hooks. */
+	  L->cframe = NULL;
+	  L->status = (uint8_t)errcode;
+	}
+	return cf;
+      }
+      if (errcode) {
+	L->base = frame_prevd(frame) + 1;
+	L->cframe = cframe_prev(cf);
+	unwindstack(L, frame - LJ_FR2);
+      }
+      return cf;
+    case FRAME_CONT:  /* Continuation frame. */
+      if (frame_iscont_fficb(frame))
+	goto unwind_c;
+      /* fallthrough */
+    case FRAME_VARG:  /* Vararg frame. */
+      frame = frame_prevd(frame);
+      break;
+    case FRAME_PCALL:  /* FF pcall() frame. */
+    case FRAME_PCALLH:  /* FF pcall() frame inside hook. */
+      if (errcode) {
+	if (errcode == LUA_YIELD) {
+	  frame = frame_prevd(frame);
+	  break;
+	}
+	if (frame_typep(frame) == FRAME_PCALL)
+	  hook_leave(G(L));
+	L->base = frame_prevd(frame) + 1;
+	L->cframe = cf;
+	unwindstack(L, L->base);
+      }
+      return (void *)((intptr_t)cf | CFRAME_UNWIND_FF);
+    }
+  }
+  /* No C frame. */
+  if (errcode) {
+    L->base = tvref(L->stack)+1+LJ_FR2;
+    L->cframe = NULL;
+    unwindstack(L, L->base);
+    if (G(L)->panic)
+      G(L)->panic(L);
+    exit(EXIT_FAILURE);
+  }
+  return L;  /* Anything non-NULL will do. */
+}
+
+/* -- External frame unwinding -------------------------------------------- */
+
+#if LJ_ABI_WIN
+
+/*
+** Someone in Redmond owes me several days of my life. A lot of this is
+** undocumented or just plain wrong on MSDN. Some of it can be gathered
+** from 3rd party docs or must be found by trial-and-error. They really
+** don't want you to write your own language-specific exception handler
+** or to interact gracefully with MSVC. :-(
+**
+** Apparently MSVC doesn't call C++ destructors for foreign exceptions
+** unless you compile your C++ code with /EHa. Unfortunately this means
+** catch (...) also catches things like access violations. The use of
+** _set_se_translator doesn't really help, because it requires /EHa, too.
+*/
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#if LJ_TARGET_X86
+typedef void *UndocumentedDispatcherContext;  /* Unused on x86. */
+#else
+/* Taken from: http://www.nynaeve.net/?p=99 */
+typedef struct UndocumentedDispatcherContext {
+  ULONG64 ControlPc;
+  ULONG64 ImageBase;
+  PRUNTIME_FUNCTION FunctionEntry;
+  ULONG64 EstablisherFrame;
+  ULONG64 TargetIp;
+  PCONTEXT ContextRecord;
+  void (*LanguageHandler)(void);
+  PVOID HandlerData;
+  PUNWIND_HISTORY_TABLE HistoryTable;
+  ULONG ScopeIndex;
+  ULONG Fill0;
+} UndocumentedDispatcherContext;
+#endif
+
+/* Another wild guess. */
+extern void __DestructExceptionObject(EXCEPTION_RECORD *rec, int nothrow);
+
+#if LJ_TARGET_X64 && defined(MINGW_SDK_INIT)
+/* Workaround for broken MinGW64 declaration. */
+VOID RtlUnwindEx_FIXED(PVOID,PVOID,PVOID,PVOID,PVOID,PVOID) asm("RtlUnwindEx");
+#define RtlUnwindEx RtlUnwindEx_FIXED
+#endif
+
+#define LJ_MSVC_EXCODE		((DWORD)0xe06d7363)
+#define LJ_GCC_EXCODE		((DWORD)0x20474343)
+
+#define LJ_EXCODE		((DWORD)0xe24c4a00)
+#define LJ_EXCODE_MAKE(c)	(LJ_EXCODE | (DWORD)(c))
+#define LJ_EXCODE_CHECK(cl)	(((cl) ^ LJ_EXCODE) <= 0xff)
+#define LJ_EXCODE_ERRCODE(cl)	((int)((cl) & 0xff))
+
+/* Windows exception handler for interpreter frame. */
+LJ_FUNCA int lj_err_unwind_win(EXCEPTION_RECORD *rec,
+  void *f, CONTEXT *ctx, UndocumentedDispatcherContext *dispatch)
+{
+#if LJ_TARGET_X86
+  void *cf = (char *)f - CFRAME_OFS_SEH;
+#else
+  void *cf = f;
+#endif
+  lua_State *L = cframe_L(cf);
+  int errcode = LJ_EXCODE_CHECK(rec->ExceptionCode) ?
+		LJ_EXCODE_ERRCODE(rec->ExceptionCode) : LUA_ERRRUN;
+  if ((rec->ExceptionFlags & 6)) {  /* EH_UNWINDING|EH_EXIT_UNWIND */
+    /* Unwind internal frames. */
+    err_unwind(L, cf, errcode);
+  } else {
+    void *cf2 = err_unwind(L, cf, 0);
+    if (cf2) {  /* We catch it, so start unwinding the upper frames. */
+      if (rec->ExceptionCode == LJ_MSVC_EXCODE ||
+	  rec->ExceptionCode == LJ_GCC_EXCODE) {
+#if !LJ_TARGET_CYGWIN
+	__DestructExceptionObject(rec, 1);
+#endif
+	setstrV(L, L->top++, lj_err_str(L, LJ_ERR_ERRCPP));
+      } else if (!LJ_EXCODE_CHECK(rec->ExceptionCode)) {
+	/* Don't catch access violations etc. */
+	return 1;  /* ExceptionContinueSearch */
+      }
+#if LJ_TARGET_X86
+      UNUSED(ctx);
+      UNUSED(dispatch);
+      /* Call all handlers for all lower C frames (including ourselves) again
+      ** with EH_UNWINDING set. Then call the specified function, passing cf
+      ** and errcode.
+      */
+      lj_vm_rtlunwind(cf, (void *)rec,
+	(cframe_unwind_ff(cf2) && errcode != LUA_YIELD) ?
+	(void *)lj_vm_unwind_ff : (void *)lj_vm_unwind_c, errcode);
+      /* lj_vm_rtlunwind does not return. */
+#else
+      /* Unwind the stack and call all handlers for all lower C frames
+      ** (including ourselves) again with EH_UNWINDING set. Then set
+      ** stack pointer = cf, result = errcode and jump to the specified target.
+      */
+      RtlUnwindEx(cf, (void *)((cframe_unwind_ff(cf2) && errcode != LUA_YIELD) ?
+			       lj_vm_unwind_ff_eh :
+			       lj_vm_unwind_c_eh),
+		  rec, (void *)(uintptr_t)errcode, ctx, dispatch->HistoryTable);
+      /* RtlUnwindEx should never return. */
+#endif
+    }
+  }
+  return 1;  /* ExceptionContinueSearch */
+}
+
+#if LJ_UNWIND_JIT
+
+#if LJ_TARGET_X64
+#define CONTEXT_REG_PC	Rip
+#elif LJ_TARGET_ARM64
+#define CONTEXT_REG_PC	Pc
+#else
+#error "NYI: Windows arch-specific unwinder for JIT-compiled code"
+#endif
+
+/* Windows unwinder for JIT-compiled code. */
+static void err_unwind_win_jit(global_State *g, int errcode)
+{
+  CONTEXT ctx;
+  UNWIND_HISTORY_TABLE hist;
+
+  memset(&hist, 0, sizeof(hist));
+  RtlCaptureContext(&ctx);
+  while (1) {
+    uintptr_t frame, base, addr = ctx.CONTEXT_REG_PC;
+    void *hdata;
+    PRUNTIME_FUNCTION func = RtlLookupFunctionEntry(addr, &base, &hist);
+    if (!func) {  /* Found frame without .pdata: must be JIT-compiled code. */
+      ExitNo exitno;
+      uintptr_t stub = lj_trace_unwind(G2J(g), addr - sizeof(MCode), &exitno);
+      if (stub) {  /* Jump to side exit to unwind the trace. */
+	ctx.CONTEXT_REG_PC = stub;
+	G2J(g)->exitcode = errcode;
+	RtlRestoreContext(&ctx, NULL);  /* Does not return. */
+      }
+      break;
+    }
+    RtlVirtualUnwind(UNW_FLAG_NHANDLER, base, addr, func,
+		     &ctx, &hdata, &frame, NULL);
+    if (!addr) break;
+  }
+  /* Unwinding failed, if we end up here. */
+}
+#endif
+
+/* Raise Windows exception. */
+static void err_raise_ext(global_State *g, int errcode)
+{
+#if LJ_UNWIND_JIT
+  if (tvref(g->jit_base)) {
+    err_unwind_win_jit(g, errcode);
+    return;  /* Unwinding failed. */
+  }
+#elif LJ_HASJIT
+  /* Cannot catch on-trace errors for Windows/x86 SEH. Unwind to interpreter. */
+  setmref(g->jit_base, NULL);
+#endif
+  UNUSED(g);
+  RaiseException(LJ_EXCODE_MAKE(errcode), 1 /* EH_NONCONTINUABLE */, 0, NULL);
+}
+
+#elif !LJ_NO_UNWIND && (defined(__GNUC__) || defined(__clang__))
+
+/*
+** We have to use our own definitions instead of the mandatory (!) unwind.h,
+** since various OS, distros and compilers mess up the header installation.
+*/
+
+typedef struct _Unwind_Context _Unwind_Context;
+
+#define _URC_OK			0
+#define _URC_FATAL_PHASE2_ERROR	2
+#define _URC_FATAL_PHASE1_ERROR	3
+#define _URC_HANDLER_FOUND	6
+#define _URC_INSTALL_CONTEXT	7
+#define _URC_CONTINUE_UNWIND	8
+#define _URC_FAILURE		9
+
+#define LJ_UEXCLASS		0x4c55414a49543200ULL	/* LUAJIT2\0 */
+#define LJ_UEXCLASS_MAKE(c)	(LJ_UEXCLASS | (uint64_t)(c))
+#define LJ_UEXCLASS_CHECK(cl)	(((cl) ^ LJ_UEXCLASS) <= 0xff)
+#define LJ_UEXCLASS_ERRCODE(cl)	((int)((cl) & 0xff))
+
+#if !LJ_TARGET_ARM
+
+typedef struct _Unwind_Exception
+{
+  uint64_t exclass;
+  void (*excleanup)(int, struct _Unwind_Exception *);
+  uintptr_t p1, p2;
+} __attribute__((__aligned__)) _Unwind_Exception;
+#define UNWIND_EXCEPTION_TYPE	_Unwind_Exception
+
+extern uintptr_t _Unwind_GetCFA(_Unwind_Context *);
+extern void _Unwind_SetGR(_Unwind_Context *, int, uintptr_t);
+extern uintptr_t _Unwind_GetIP(_Unwind_Context *);
+extern void _Unwind_SetIP(_Unwind_Context *, uintptr_t);
+extern void _Unwind_DeleteException(_Unwind_Exception *);
+extern int _Unwind_RaiseException(_Unwind_Exception *);
+
+#define _UA_SEARCH_PHASE	1
+#define _UA_CLEANUP_PHASE	2
+#define _UA_HANDLER_FRAME	4
+#define _UA_FORCE_UNWIND	8
+
+/* DWARF2 personality handler referenced from interpreter .eh_frame. */
+LJ_FUNCA int lj_err_unwind_dwarf(int version, int actions,
+  uint64_t uexclass, _Unwind_Exception *uex, _Unwind_Context *ctx)
+{
+  void *cf;
+  lua_State *L;
+  if (version != 1)
+    return _URC_FATAL_PHASE1_ERROR;
+  cf = (void *)_Unwind_GetCFA(ctx);
+  L = cframe_L(cf);
+  if ((actions & _UA_SEARCH_PHASE)) {
+#if LJ_UNWIND_EXT
+    if (err_unwind(L, cf, 0) == NULL)
+      return _URC_CONTINUE_UNWIND;
+#endif
+    if (!LJ_UEXCLASS_CHECK(uexclass)) {
+      setstrV(L, L->top++, lj_err_str(L, LJ_ERR_ERRCPP));
+    }
+    return _URC_HANDLER_FOUND;
+  }
+  if ((actions & _UA_CLEANUP_PHASE)) {
+    int errcode;
+    if (LJ_UEXCLASS_CHECK(uexclass)) {
+      errcode = LJ_UEXCLASS_ERRCODE(uexclass);
+    } else {
+      if ((actions & _UA_HANDLER_FRAME))
+	_Unwind_DeleteException(uex);
+      errcode = LUA_ERRRUN;
+    }
+#if LJ_UNWIND_EXT
+    cf = err_unwind(L, cf, errcode);
+    if ((actions & _UA_FORCE_UNWIND)) {
+      return _URC_CONTINUE_UNWIND;
+    } else if (cf) {
+      _Unwind_SetGR(ctx, LJ_TARGET_EHRETREG, errcode);
+      _Unwind_SetIP(ctx, (uintptr_t)(cframe_unwind_ff(cf) ?
+				     lj_vm_unwind_ff_eh :
+				     lj_vm_unwind_c_eh));
+      return _URC_INSTALL_CONTEXT;
+    }
+#if LJ_TARGET_X86ORX64
+    else if ((actions & _UA_HANDLER_FRAME)) {
+      /* Workaround for ancient libgcc bug. Still present in RHEL 5.5. :-/
+      ** Real fix: http://gcc.gnu.org/viewcvs/trunk/gcc/unwind-dw2.c?r1=121165&r2=124837&pathrev=153877&diff_format=h
+      */
+      _Unwind_SetGR(ctx, LJ_TARGET_EHRETREG, errcode);
+      _Unwind_SetIP(ctx, (uintptr_t)lj_vm_unwind_rethrow);
+      return _URC_INSTALL_CONTEXT;
+    }
+#endif
+#else
+    /* This is not the proper way to escape from the unwinder. We get away with
+    ** it on non-x64 because the interpreter restores all callee-saved regs.
+    */
+    lj_err_throw(L, errcode);
+#if LJ_TARGET_X64
+#error "Broken build system -- only use the provided Makefiles!"
+#endif
+#endif
+  }
+  return _URC_CONTINUE_UNWIND;
+}
+
+#if LJ_UNWIND_EXT && defined(LUA_USE_ASSERT)
+struct dwarf_eh_bases { void *tbase, *dbase, *func; };
+extern const void *_Unwind_Find_FDE(void *pc, struct dwarf_eh_bases *bases);
+
+/* Verify that external error handling actually has a chance to work. */
+void lj_err_verify(void)
+{
+#if !LJ_TARGET_OSX
+  /* Check disabled on MacOS due to brilliant software engineering at Apple. */
+  struct dwarf_eh_bases ehb;
+  lj_assertX(_Unwind_Find_FDE((void *)lj_err_throw, &ehb), "broken build: external frame unwinding enabled, but missing -funwind-tables");
+#endif
+  /* Check disabled, because of broken Fedora/ARM64. See #722.
+  lj_assertX(_Unwind_Find_FDE((void *)_Unwind_RaiseException, &ehb), "broken build: external frame unwinding enabled, but system libraries have no unwind tables");
+  */
+}
+#endif
+
+#if LJ_UNWIND_JIT
+/* DWARF2 personality handler for JIT-compiled code. */
+static int err_unwind_jit(int version, int actions,
+  uint64_t uexclass, _Unwind_Exception *uex, _Unwind_Context *ctx)
+{
+  /* NYI: FFI C++ exception interoperability. */
+  if (version != 1 || !LJ_UEXCLASS_CHECK(uexclass))
+    return _URC_FATAL_PHASE1_ERROR;
+  if ((actions & _UA_SEARCH_PHASE)) {
+    return _URC_HANDLER_FOUND;
+  }
+  if ((actions & _UA_CLEANUP_PHASE)) {
+    global_State *g = *(global_State **)(uex+1);
+    ExitNo exitno;
+    uintptr_t addr = _Unwind_GetIP(ctx);  /* Return address _after_ call. */
+    uintptr_t stub = lj_trace_unwind(G2J(g), addr - sizeof(MCode), &exitno);
+    lj_assertG(tvref(g->jit_base), "unexpected throw across mcode frame");
+    if (stub) {  /* Jump to side exit to unwind the trace. */
+      G2J(g)->exitcode = LJ_UEXCLASS_ERRCODE(uexclass);
+#ifdef LJ_TARGET_MIPS
+      _Unwind_SetGR(ctx, 4, stub);
+      _Unwind_SetGR(ctx, 5, exitno);
+      _Unwind_SetIP(ctx, (uintptr_t)(void *)lj_vm_unwind_stub);
+#else
+      _Unwind_SetIP(ctx, stub);
+#endif
+      return _URC_INSTALL_CONTEXT;
+    }
+    return _URC_FATAL_PHASE2_ERROR;
+  }
+  return _URC_FATAL_PHASE1_ERROR;
+}
+
+/* DWARF2 template frame info for JIT-compiled code.
+**
+** After copying the template to the start of the mcode segment,
+** the frame handler function and the code size is patched.
+** The frame handler always installs a new context to jump to the exit,
+** so don't bother to add any unwind opcodes.
+*/
+static const uint8_t err_frame_jit_template[] = {
+#if LJ_BE
+  0,0,0,
+#endif
+  LJ_64 ? 0x1c : 0x14,  /* CIE length. */
+#if LJ_LE
+  0,0,0,
+#endif
+  0,0,0,0, 1, 'z','P','R',0,  /* CIE mark, CIE version, augmentation. */
+  1, LJ_64 ? 0x78 : 0x7c, LJ_TARGET_EHRAREG,  /* Code/data align, RA. */
+#if LJ_64
+  10, 0, 0,0,0,0,0,0,0,0, 0x1b,  /* Aug. data ABS handler, PCREL|SDATA4 code. */
+  0,0,0,0,0,  /* Alignment. */
+#else
+  6, 0, 0,0,0,0, 0x1b,  /* Aug. data ABS handler, PCREL|SDATA4 code. */
+  0,  /* Alignment. */
+#endif
+#if LJ_BE
+  0,0,0,
+#endif
+  LJ_64 ? 0x14 : 0x10,  /* FDE length. */
+  0,0,0,
+  LJ_64 ? 0x24 : 0x1c,  /* CIE offset. */
+  0,0,0,
+  LJ_64 ? 0x14 : 0x10,  /* Code offset. After Final FDE. */
+#if LJ_LE
+  0,0,0,
+#endif
+  0,0,0,0, 0, 0,0,0, /* Code size, augmentation length, alignment. */
+#if LJ_64
+  0,0,0,0,  /* Alignment. */
+#endif
+  0,0,0,0  /* Final FDE. */
+};
+
+#define ERR_FRAME_JIT_OFS_HANDLER	0x12
+#define ERR_FRAME_JIT_OFS_FDE		(LJ_64 ? 0x20 : 0x18)
+#define ERR_FRAME_JIT_OFS_CODE_SIZE	(LJ_64 ? 0x2c : 0x24)
+#if LJ_TARGET_OSX
+#define ERR_FRAME_JIT_OFS_REGISTER	ERR_FRAME_JIT_OFS_FDE
+#else
+#define ERR_FRAME_JIT_OFS_REGISTER	0
+#endif
+
+extern void __register_frame(const void *);
+extern void __deregister_frame(const void *);
+
+uint8_t *lj_err_register_mcode(void *base, size_t sz, uint8_t *info)
+{
+  void **handler;
+  memcpy(info, err_frame_jit_template, sizeof(err_frame_jit_template));
+  handler = (void *)err_unwind_jit;
+  memcpy(info + ERR_FRAME_JIT_OFS_HANDLER, &handler, sizeof(handler));
+  *(uint32_t *)(info + ERR_FRAME_JIT_OFS_CODE_SIZE) =
+    (uint32_t)(sz - sizeof(err_frame_jit_template) - (info - (uint8_t *)base));
+  __register_frame(info + ERR_FRAME_JIT_OFS_REGISTER);
+#ifdef LUA_USE_ASSERT
+  {
+    struct dwarf_eh_bases ehb;
+    lj_assertX(_Unwind_Find_FDE(info + sizeof(err_frame_jit_template)+1, &ehb),
+	       "bad JIT unwind table registration");
+  }
+#endif
+  return info + sizeof(err_frame_jit_template);
+}
+
+void lj_err_deregister_mcode(void *base, size_t sz, uint8_t *info)
+{
+  UNUSED(base); UNUSED(sz);
+  __deregister_frame(info + ERR_FRAME_JIT_OFS_REGISTER);
+}
+#endif
+
+#else /* LJ_TARGET_ARM */
+
+#define _US_VIRTUAL_UNWIND_FRAME	0
+#define _US_UNWIND_FRAME_STARTING	1
+#define _US_ACTION_MASK			3
+#define _US_FORCE_UNWIND		8
+
+typedef struct _Unwind_Control_Block _Unwind_Control_Block;
+#define UNWIND_EXCEPTION_TYPE	_Unwind_Control_Block
+
+struct _Unwind_Control_Block {
+  uint64_t exclass;
+  uint32_t misc[20];
+};
+
+extern int _Unwind_RaiseException(_Unwind_Control_Block *);
+extern int __gnu_unwind_frame(_Unwind_Control_Block *, _Unwind_Context *);
+extern int _Unwind_VRS_Set(_Unwind_Context *, int, uint32_t, int, void *);
+extern int _Unwind_VRS_Get(_Unwind_Context *, int, uint32_t, int, void *);
+
+static inline uint32_t _Unwind_GetGR(_Unwind_Context *ctx, int r)
+{
+  uint32_t v;
+  _Unwind_VRS_Get(ctx, 0, r, 0, &v);
+  return v;
+}
+
+static inline void _Unwind_SetGR(_Unwind_Context *ctx, int r, uint32_t v)
+{
+  _Unwind_VRS_Set(ctx, 0, r, 0, &v);
+}
+
+extern void lj_vm_unwind_ext(void);
+
+/* ARM unwinder personality handler referenced from interpreter .ARM.extab. */
+LJ_FUNCA int lj_err_unwind_arm(int state, _Unwind_Control_Block *ucb,
+			       _Unwind_Context *ctx)
+{
+  void *cf = (void *)_Unwind_GetGR(ctx, 13);
+  lua_State *L = cframe_L(cf);
+  int errcode;
+
+  switch ((state & _US_ACTION_MASK)) {
+  case _US_VIRTUAL_UNWIND_FRAME:
+    if ((state & _US_FORCE_UNWIND)) break;
+    return _URC_HANDLER_FOUND;
+  case _US_UNWIND_FRAME_STARTING:
+    if (LJ_UEXCLASS_CHECK(ucb->exclass)) {
+      errcode = LJ_UEXCLASS_ERRCODE(ucb->exclass);
+    } else {
+      errcode = LUA_ERRRUN;
+      setstrV(L, L->top++, lj_err_str(L, LJ_ERR_ERRCPP));
+    }
+    cf = err_unwind(L, cf, errcode);
+    if ((state & _US_FORCE_UNWIND) || cf == NULL) break;
+    _Unwind_SetGR(ctx, 15, (uint32_t)lj_vm_unwind_ext);
+    _Unwind_SetGR(ctx, 0, (uint32_t)ucb);
+    _Unwind_SetGR(ctx, 1, (uint32_t)errcode);
+    _Unwind_SetGR(ctx, 2, cframe_unwind_ff(cf) ?
+			    (uint32_t)lj_vm_unwind_ff_eh :
+			    (uint32_t)lj_vm_unwind_c_eh);
+    return _URC_INSTALL_CONTEXT;
+  default:
+    return _URC_FAILURE;
+  }
+  if (__gnu_unwind_frame(ucb, ctx) != _URC_OK)
+    return _URC_FAILURE;
+#ifdef LUA_USE_ASSERT
+  /* We should never get here unless this is a forced unwind aka backtrace. */
+  if (_Unwind_GetGR(ctx, 0) == 0xff33aa77) {
+    _Unwind_SetGR(ctx, 0, 0xff33aa88);
+  }
+#endif
+  return _URC_CONTINUE_UNWIND;
+}
+
+#if LJ_UNWIND_EXT && defined(LUA_USE_ASSERT)
+typedef int (*_Unwind_Trace_Fn)(_Unwind_Context *, void *);
+extern int _Unwind_Backtrace(_Unwind_Trace_Fn, void *);
+
+static int err_verify_bt(_Unwind_Context *ctx, int *got)
+{
+  if (_Unwind_GetGR(ctx, 0) == 0xff33aa88) { *got = 2; }
+  else if (*got == 0) { *got = 1; _Unwind_SetGR(ctx, 0, 0xff33aa77); }
+  return _URC_OK;
+}
+
+/* Verify that external error handling actually has a chance to work. */
+void lj_err_verify(void)
+{
+  int got = 0;
+  _Unwind_Backtrace((_Unwind_Trace_Fn)err_verify_bt, &got);
+  lj_assertX(got == 2, "broken build: external frame unwinding enabled, but missing -funwind-tables");
+}
+#endif
+
+/*
+** Note: LJ_UNWIND_JIT is not implemented for 32 bit ARM.
+**
+** The quirky ARM unwind API doesn't have __register_frame().
+** A potential workaround might involve _Unwind_Backtrace.
+** But most 32 bit ARM targets don't qualify for LJ_UNWIND_EXT, anyway,
+** since they are built without unwind tables by default.
+*/
+
+#endif /* LJ_TARGET_ARM */
+
+
+#if LJ_UNWIND_EXT
+static __thread struct {
+  UNWIND_EXCEPTION_TYPE ex;
+  global_State *g;
+} static_uex;
+
+/* Raise external exception. */
+static void err_raise_ext(global_State *g, int errcode)
+{
+  memset(&static_uex, 0, sizeof(static_uex));
+  static_uex.ex.exclass = LJ_UEXCLASS_MAKE(errcode);
+  static_uex.g = g;
+  _Unwind_RaiseException(&static_uex.ex);
+}
+
+#endif
+
+#endif
+
+/* -- Error handling ------------------------------------------------------ */
+
+/* Throw error. Find catch frame, unwind stack and continue. */
+LJ_NOINLINE void LJ_FASTCALL lj_err_throw(lua_State *L, int errcode)
+{
+  global_State *g = G(L);
+  lj_trace_abort(g);
+  L->status = LUA_OK;
+#if LJ_UNWIND_EXT
+  err_raise_ext(g, errcode);
+  /*
+  ** A return from this function signals a corrupt C stack that cannot be
+  ** unwound. We have no choice but to call the panic function and exit.
+  **
+  ** Usually this is caused by a C function without unwind information.
+  ** This may happen if you've manually enabled LUAJIT_UNWIND_EXTERNAL
+  ** and forgot to recompile *every* non-C++ file with -funwind-tables.
+  */
+  if (G(L)->panic)
+    G(L)->panic(L);
+#else
+#if LJ_HASJIT
+  setmref(g->jit_base, NULL);
+#endif
+  {
+    void *cf = err_unwind(L, NULL, errcode);
+    if (cframe_unwind_ff(cf))
+      lj_vm_unwind_ff(cframe_raw(cf));
+    else
+      lj_vm_unwind_c(cframe_raw(cf), errcode);
+  }
+#endif
+  exit(EXIT_FAILURE);
+}
+
+/* Return string object for error message. */
+LJ_NOINLINE GCstr *lj_err_str(lua_State *L, ErrMsg em)
+{
+  return lj_str_newz(L, err2msg(em));
+}
+
+/* Out-of-memory error. */
+LJ_NOINLINE void lj_err_mem(lua_State *L)
+{
+  if (L->status == LUA_ERRERR+1)  /* Don't touch the stack during lua_open. */
+    lj_vm_unwind_c(L->cframe, LUA_ERRMEM);
+  if (curr_funcisL(L)) L->top = curr_topL(L);
+  setstrV(L, L->top++, lj_err_str(L, LJ_ERR_ERRMEM));
+  lj_err_throw(L, LUA_ERRMEM);
+}
+
+/* Find error function for runtime errors. Requires an extra stack traversal. */
+static ptrdiff_t finderrfunc(lua_State *L)
+{
+  cTValue *frame = L->base-1, *bot = tvref(L->stack)+LJ_FR2;
+  void *cf = L->cframe;
+  while (frame > bot && cf) {
+    while (cframe_nres(cframe_raw(cf)) < 0) {  /* cframe without frame? */
+      if (frame >= restorestack(L, -cframe_nres(cf)))
+	break;
+      if (cframe_errfunc(cf) >= 0)  /* Error handler not inherited (-1)? */
+	return cframe_errfunc(cf);
+      cf = cframe_prev(cf);  /* Else unwind cframe and continue searching. */
+      if (cf == NULL)
+	return 0;
+    }
+    switch (frame_typep(frame)) {
+    case FRAME_LUA:
+    case FRAME_LUAP:
+      frame = frame_prevl(frame);
+      break;
+    case FRAME_C:
+      cf = cframe_prev(cf);
+      /* fallthrough */
+    case FRAME_VARG:
+      frame = frame_prevd(frame);
+      break;
+    case FRAME_CONT:
+      if (frame_iscont_fficb(frame))
+	cf = cframe_prev(cf);
+      frame = frame_prevd(frame);
+      break;
+    case FRAME_CP:
+      if (cframe_canyield(cf)) return 0;
+      if (cframe_errfunc(cf) >= 0)
+	return cframe_errfunc(cf);
+      cf = cframe_prev(cf);
+      frame = frame_prevd(frame);
+      break;
+    case FRAME_PCALL:
+    case FRAME_PCALLH:
+      if (frame_func(frame_prevd(frame))->c.ffid == FF_xpcall)
+	return savestack(L, frame_prevd(frame)+1);  /* xpcall's errorfunc. */
+      return 0;
+    default:
+      lj_assertL(0, "bad frame type");
+      return 0;
+    }
+  }
+  return 0;
+}
+
+/* Runtime error. */
+LJ_NOINLINE void LJ_FASTCALL lj_err_run(lua_State *L)
+{
+  ptrdiff_t ef = (LJ_HASJIT && tvref(G(L)->jit_base)) ? 0 : finderrfunc(L);
+  if (ef) {
+    TValue *errfunc = restorestack(L, ef);
+    TValue *top = L->top;
+    lj_trace_abort(G(L));
+    if (!tvisfunc(errfunc) || L->status == LUA_ERRERR) {
+      setstrV(L, top-1, lj_err_str(L, LJ_ERR_ERRERR));
+      lj_err_throw(L, LUA_ERRERR);
+    }
+    L->status = LUA_ERRERR;
+    copyTV(L, top+LJ_FR2, top-1);
+    copyTV(L, top-1, errfunc);
+    if (LJ_FR2) setnilV(top++);
+    L->top = top+1;
+    lj_vm_call(L, top, 1+1);  /* Stack: |errfunc|msg| -> |msg| */
+  }
+  lj_err_throw(L, LUA_ERRRUN);
+}
+
+#if LJ_HASJIT
+LJ_NOINLINE void LJ_FASTCALL lj_err_trace(lua_State *L, int errcode)
+{
+  if (errcode == LUA_ERRRUN)
+    lj_err_run(L);
+  else
+    lj_err_throw(L, errcode);
+}
+#endif
+
+/* Formatted runtime error message. */
+LJ_NORET LJ_NOINLINE static void err_msgv(lua_State *L, ErrMsg em, ...)
+{
+  const char *msg;
+  va_list argp;
+  va_start(argp, em);
+  if (curr_funcisL(L)) L->top = curr_topL(L);
+  msg = lj_strfmt_pushvf(L, err2msg(em), argp);
+  va_end(argp);
+  lj_debug_addloc(L, msg, L->base-1, NULL);
+  lj_err_run(L);
+}
+
+/* Non-vararg variant for better calling conventions. */
+LJ_NOINLINE void lj_err_msg(lua_State *L, ErrMsg em)
+{
+  err_msgv(L, em);
+}
+
+/* Lexer error. */
+LJ_NOINLINE void lj_err_lex(lua_State *L, GCstr *src, const char *tok,
+			    BCLine line, ErrMsg em, va_list argp)
+{
+  char buff[LUA_IDSIZE];
+  const char *msg;
+  lj_debug_shortname(buff, src, line);
+  msg = lj_strfmt_pushvf(L, err2msg(em), argp);
+  msg = lj_strfmt_pushf(L, "%s:%d: %s", buff, line, msg);
+  if (tok)
+    lj_strfmt_pushf(L, err2msg(LJ_ERR_XNEAR), msg, tok);
+  lj_err_throw(L, LUA_ERRSYNTAX);
+}
+
+/* Typecheck error for operands. */
+LJ_NOINLINE void lj_err_optype(lua_State *L, cTValue *o, ErrMsg opm)
+{
+  const char *tname = lj_typename(o);
+  const char *opname = err2msg(opm);
+  if (curr_funcisL(L)) {
+    GCproto *pt = curr_proto(L);
+    const BCIns *pc = cframe_Lpc(L) - 1;
+    const char *oname = NULL;
+    const char *kind = lj_debug_slotname(pt, pc, (BCReg)(o-L->base), &oname);
+    if (kind)
+      err_msgv(L, LJ_ERR_BADOPRT, opname, kind, oname, tname);
+  }
+  err_msgv(L, LJ_ERR_BADOPRV, opname, tname);
+}
+
+/* Typecheck error for ordered comparisons. */
+LJ_NOINLINE void lj_err_comp(lua_State *L, cTValue *o1, cTValue *o2)
+{
+  const char *t1 = lj_typename(o1);
+  const char *t2 = lj_typename(o2);
+  err_msgv(L, t1 == t2 ? LJ_ERR_BADCMPV : LJ_ERR_BADCMPT, t1, t2);
+  /* This assumes the two "boolean" entries are commoned by the C compiler. */
+}
+
+/* Typecheck error for __call. */
+LJ_NOINLINE void lj_err_optype_call(lua_State *L, TValue *o)
+{
+  /* Gross hack if lua_[p]call or pcall/xpcall fail for a non-callable object:
+  ** L->base still points to the caller. So add a dummy frame with L instead
+  ** of a function. See lua_getstack().
+  */
+  const BCIns *pc = cframe_Lpc(L);
+  if (((ptrdiff_t)pc & FRAME_TYPE) != FRAME_LUA) {
+    const char *tname = lj_typename(o);
+    setframe_gc(o, obj2gco(L), LJ_TTHREAD);
+    if (LJ_FR2) o++;
+    setframe_pc(o, pc);
+    L->top = L->base = o+1;
+    err_msgv(L, LJ_ERR_BADCALL, tname);
+  }
+  lj_err_optype(L, o, LJ_ERR_OPCALL);
+}
+
+/* Error in context of caller. */
+LJ_NOINLINE void lj_err_callermsg(lua_State *L, const char *msg)
+{
+  TValue *frame = NULL, *pframe = NULL;
+  if (!(LJ_HASJIT && tvref(G(L)->jit_base))) {
+    frame = L->base-1;
+    if (frame_islua(frame)) {
+      pframe = frame_prevl(frame);
+    } else if (frame_iscont(frame)) {
+      if (frame_iscont_fficb(frame)) {
+	pframe = frame;
+	frame = NULL;
+      } else {
+	pframe = frame_prevd(frame);
+#if LJ_HASFFI
+	/* Remove frame for FFI metamethods. */
+	if (frame_func(frame)->c.ffid >= FF_ffi_meta___index &&
+	    frame_func(frame)->c.ffid <= FF_ffi_meta___tostring) {
+	  L->base = pframe+1;
+	  L->top = frame;
+	  setcframe_pc(cframe_raw(L->cframe), frame_contpc(frame));
+	}
+#endif
+      }
+    }
+  }
+  lj_debug_addloc(L, msg, pframe, frame);
+  lj_err_run(L);
+}
+
+/* Formatted error in context of caller. */
+LJ_NOINLINE void lj_err_callerv(lua_State *L, ErrMsg em, ...)
+{
+  const char *msg;
+  va_list argp;
+  va_start(argp, em);
+  msg = lj_strfmt_pushvf(L, err2msg(em), argp);
+  va_end(argp);
+  lj_err_callermsg(L, msg);
+}
+
+/* Error in context of caller. */
+LJ_NOINLINE void lj_err_caller(lua_State *L, ErrMsg em)
+{
+  lj_err_callermsg(L, err2msg(em));
+}
+
+/* Argument error message. */
+LJ_NORET LJ_NOINLINE static void err_argmsg(lua_State *L, int narg,
+					    const char *msg)
+{
+  const char *fname = "?";
+  const char *ftype = lj_debug_funcname(L, L->base - 1, &fname);
+  if (narg < 0 && narg > LUA_REGISTRYINDEX)
+    narg = (int)(L->top - L->base) + narg + 1;
+  if (ftype && ftype[3] == 'h' && --narg == 0)  /* Check for "method". */
+    msg = lj_strfmt_pushf(L, err2msg(LJ_ERR_BADSELF), fname, msg);
+  else
+    msg = lj_strfmt_pushf(L, err2msg(LJ_ERR_BADARG), narg, fname, msg);
+  lj_err_callermsg(L, msg);
+}
+
+/* Formatted argument error. */
+LJ_NOINLINE void lj_err_argv(lua_State *L, int narg, ErrMsg em, ...)
+{
+  const char *msg;
+  va_list argp;
+  va_start(argp, em);
+  msg = lj_strfmt_pushvf(L, err2msg(em), argp);
+  va_end(argp);
+  err_argmsg(L, narg, msg);
+}
+
+/* Argument error. */
+LJ_NOINLINE void lj_err_arg(lua_State *L, int narg, ErrMsg em)
+{
+  err_argmsg(L, narg, err2msg(em));
+}
+
+/* Typecheck error for arguments. */
+LJ_NOINLINE void lj_err_argtype(lua_State *L, int narg, const char *xname)
+{
+  const char *tname, *msg;
+  if (narg <= LUA_REGISTRYINDEX) {
+    if (narg >= LUA_GLOBALSINDEX) {
+      tname = lj_obj_itypename[~LJ_TTAB];
+    } else {
+      GCfunc *fn = curr_func(L);
+      int idx = LUA_GLOBALSINDEX - narg;
+      if (idx <= fn->c.nupvalues)
+	tname = lj_typename(&fn->c.upvalue[idx-1]);
+      else
+	tname = lj_obj_typename[0];
+    }
+  } else {
+    TValue *o = narg < 0 ? L->top + narg : L->base + narg-1;
+    tname = o < L->top ? lj_typename(o) : lj_obj_typename[0];
+  }
+  msg = lj_strfmt_pushf(L, err2msg(LJ_ERR_BADTYPE), xname, tname);
+  err_argmsg(L, narg, msg);
+}
+
+/* Typecheck error for arguments. */
+LJ_NOINLINE void lj_err_argt(lua_State *L, int narg, int tt)
+{
+  lj_err_argtype(L, narg, lj_obj_typename[tt+1]);
+}
+
+/* -- Public error handling API ------------------------------------------- */
+
+LUA_API lua_CFunction lua_atpanic(lua_State *L, lua_CFunction panicf)
+{
+  lua_CFunction old = G(L)->panic;
+  G(L)->panic = panicf;
+  return old;
+}
+
+/* Forwarders for the public API (C calling convention and no LJ_NORET). */
+LUA_API int lua_error(lua_State *L)
+{
+  lj_err_run(L);
+  return 0;  /* unreachable */
+}
+
+LUALIB_API int luaL_argerror(lua_State *L, int narg, const char *msg)
+{
+  err_argmsg(L, narg, msg);
+  return 0;  /* unreachable */
+}
+
+LUALIB_API int luaL_typerror(lua_State *L, int narg, const char *xname)
+{
+  lj_err_argtype(L, narg, xname);
+  return 0;  /* unreachable */
+}
+
+LUALIB_API void luaL_where(lua_State *L, int level)
+{
+  int size;
+  cTValue *frame = lj_debug_frame(L, level, &size);
+  lj_debug_addloc(L, "", frame, size ? frame+size : NULL);
+}
+
+LUALIB_API int luaL_error(lua_State *L, const char *fmt, ...)
+{
+  const char *msg;
+  va_list argp;
+  va_start(argp, fmt);
+  msg = lj_strfmt_pushvf(L, fmt, argp);
+  va_end(argp);
+  lj_err_callermsg(L, msg);
+  return 0;  /* unreachable */
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_err.h b/libs/luajit-cmake/luajit/src/lj_err.h
new file mode 100644
index 0000000..bd4de9a
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_err.h
@@ -0,0 +1,58 @@
+/*
+** Error handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_ERR_H
+#define _LJ_ERR_H
+
+#include <stdarg.h>
+
+#include "lj_obj.h"
+
+typedef enum {
+#define ERRDEF(name, msg) \
+  LJ_ERR_##name, LJ_ERR_##name##_ = LJ_ERR_##name + sizeof(msg)-1,
+#include "lj_errmsg.h"
+  LJ_ERR__MAX
+} ErrMsg;
+
+LJ_DATA const char *lj_err_allmsg;
+#define err2msg(em)	(lj_err_allmsg+(int)(em))
+
+LJ_FUNC GCstr *lj_err_str(lua_State *L, ErrMsg em);
+LJ_FUNCA_NORET void LJ_FASTCALL lj_err_throw(lua_State *L, int errcode);
+LJ_FUNC_NORET void lj_err_mem(lua_State *L);
+LJ_FUNC_NORET void LJ_FASTCALL lj_err_run(lua_State *L);
+#if LJ_HASJIT
+LJ_FUNCA_NORET void LJ_FASTCALL lj_err_trace(lua_State *L, int errcode);
+#endif
+LJ_FUNC_NORET void lj_err_msg(lua_State *L, ErrMsg em);
+LJ_FUNC_NORET void lj_err_lex(lua_State *L, GCstr *src, const char *tok,
+			      BCLine line, ErrMsg em, va_list argp);
+LJ_FUNC_NORET void lj_err_optype(lua_State *L, cTValue *o, ErrMsg opm);
+LJ_FUNC_NORET void lj_err_comp(lua_State *L, cTValue *o1, cTValue *o2);
+LJ_FUNC_NORET void lj_err_optype_call(lua_State *L, TValue *o);
+LJ_FUNC_NORET void lj_err_callermsg(lua_State *L, const char *msg);
+LJ_FUNC_NORET void lj_err_callerv(lua_State *L, ErrMsg em, ...);
+LJ_FUNC_NORET void lj_err_caller(lua_State *L, ErrMsg em);
+LJ_FUNC_NORET void lj_err_arg(lua_State *L, int narg, ErrMsg em);
+LJ_FUNC_NORET void lj_err_argv(lua_State *L, int narg, ErrMsg em, ...);
+LJ_FUNC_NORET void lj_err_argtype(lua_State *L, int narg, const char *xname);
+LJ_FUNC_NORET void lj_err_argt(lua_State *L, int narg, int tt);
+
+#if LJ_UNWIND_JIT && !LJ_ABI_WIN
+LJ_FUNC uint8_t *lj_err_register_mcode(void *base, size_t sz, uint8_t *info);
+LJ_FUNC void lj_err_deregister_mcode(void *base, size_t sz, uint8_t *info);
+#else
+#define lj_err_register_mcode(base, sz, info)	(info)
+#define lj_err_deregister_mcode(base, sz, info)	UNUSED(base)
+#endif
+
+#if LJ_UNWIND_EXT && !LJ_ABI_WIN && defined(LUA_USE_ASSERT)
+LJ_FUNC void lj_err_verify(void);
+#else
+#define lj_err_verify()		((void)0)
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_errmsg.h b/libs/luajit-cmake/luajit/src/lj_errmsg.h
new file mode 100644
index 0000000..2e5c776
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_errmsg.h
@@ -0,0 +1,200 @@
+/*
+** VM error messages.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* This file may be included multiple times with different ERRDEF macros. */
+
+/* Basic error handling. */
+ERRDEF(ERRMEM,	"not enough memory")
+ERRDEF(ERRERR,	"error in error handling")
+ERRDEF(ERRCPP,	"C++ exception")
+
+/* Allocations. */
+ERRDEF(STROV,	"string length overflow")
+ERRDEF(UDATAOV,	"userdata length overflow")
+ERRDEF(STKOV,	"stack overflow")
+ERRDEF(STKOVM,	"stack overflow (%s)")
+ERRDEF(TABOV,	"table overflow")
+
+/* Table indexing. */
+ERRDEF(NANIDX,	"table index is NaN")
+ERRDEF(NILIDX,	"table index is nil")
+ERRDEF(NEXTIDX,	"invalid key to " LUA_QL("next"))
+
+/* Metamethod resolving. */
+ERRDEF(BADCALL,	"attempt to call a %s value")
+ERRDEF(BADOPRT,	"attempt to %s %s " LUA_QS " (a %s value)")
+ERRDEF(BADOPRV,	"attempt to %s a %s value")
+ERRDEF(BADCMPT,	"attempt to compare %s with %s")
+ERRDEF(BADCMPV,	"attempt to compare two %s values")
+ERRDEF(GETLOOP,	"loop in gettable")
+ERRDEF(SETLOOP,	"loop in settable")
+ERRDEF(OPCALL,	"call")
+ERRDEF(OPINDEX,	"index")
+ERRDEF(OPARITH,	"perform arithmetic on")
+ERRDEF(OPCAT,	"concatenate")
+ERRDEF(OPLEN,	"get length of")
+
+/* Type checks. */
+ERRDEF(BADSELF,	"calling " LUA_QS " on bad self (%s)")
+ERRDEF(BADARG,	"bad argument #%d to " LUA_QS " (%s)")
+ERRDEF(BADTYPE,	"%s expected, got %s")
+ERRDEF(BADVAL,	"invalid value")
+ERRDEF(NOVAL,	"value expected")
+ERRDEF(NOCORO,	"coroutine expected")
+ERRDEF(NOTABN,	"nil or table expected")
+ERRDEF(NOLFUNC,	"Lua function expected")
+ERRDEF(NOFUNCL,	"function or level expected")
+ERRDEF(NOSFT,	"string/function/table expected")
+ERRDEF(NOPROXY,	"boolean or proxy expected")
+ERRDEF(FORINIT,	LUA_QL("for") " initial value must be a number")
+ERRDEF(FORLIM,	LUA_QL("for") " limit must be a number")
+ERRDEF(FORSTEP,	LUA_QL("for") " step must be a number")
+
+/* C API checks. */
+ERRDEF(NOENV,	"no calling environment")
+ERRDEF(CYIELD,	"attempt to yield across C-call boundary")
+ERRDEF(BADLU,	"bad light userdata pointer")
+ERRDEF(NOGCMM,	"bad action while in __gc metamethod")
+#if LJ_TARGET_WINDOWS
+ERRDEF(BADFPU,	"bad FPU precision (use D3DCREATE_FPU_PRESERVE with DirectX)")
+#endif
+
+/* Standard library function errors. */
+ERRDEF(ASSERT,	"assertion failed!")
+ERRDEF(PROTMT,	"cannot change a protected metatable")
+ERRDEF(UNPACK,	"too many results to unpack")
+ERRDEF(RDRSTR,	"reader function must return a string")
+ERRDEF(PRTOSTR,	LUA_QL("tostring") " must return a string to " LUA_QL("print"))
+ERRDEF(NUMRNG,	"number out of range")
+ERRDEF(IDXRNG,	"index out of range")
+ERRDEF(BASERNG,	"base out of range")
+ERRDEF(LVLRNG,	"level out of range")
+ERRDEF(INVLVL,	"invalid level")
+ERRDEF(INVOPT,	"invalid option")
+ERRDEF(INVOPTM,	"invalid option " LUA_QS)
+ERRDEF(INVFMT,	"invalid format")
+ERRDEF(SETFENV,	LUA_QL("setfenv") " cannot change environment of given object")
+ERRDEF(CORUN,	"cannot resume running coroutine")
+ERRDEF(CODEAD,	"cannot resume dead coroutine")
+ERRDEF(COSUSP,	"cannot resume non-suspended coroutine")
+ERRDEF(TABINS,	"wrong number of arguments to " LUA_QL("insert"))
+ERRDEF(TABCAT,	"invalid value (%s) at index %d in table for " LUA_QL("concat"))
+ERRDEF(TABSORT,	"invalid order function for sorting")
+ERRDEF(IOCLFL,	"attempt to use a closed file")
+ERRDEF(IOSTDCL,	"standard file is closed")
+ERRDEF(OSUNIQF,	"unable to generate a unique filename")
+ERRDEF(OSDATEF,	"field " LUA_QS " missing in date table")
+ERRDEF(STRDUMP,	"unable to dump given function")
+ERRDEF(STRSLC,	"string slice too long")
+ERRDEF(STRPATB,	"missing " LUA_QL("[") " after " LUA_QL("%f") " in pattern")
+ERRDEF(STRPATC,	"invalid pattern capture")
+ERRDEF(STRPATE,	"malformed pattern (ends with " LUA_QL("%") ")")
+ERRDEF(STRPATM,	"malformed pattern (missing " LUA_QL("]") ")")
+ERRDEF(STRPATU,	"unbalanced pattern")
+ERRDEF(STRPATX,	"pattern too complex")
+ERRDEF(STRCAPI,	"invalid capture index")
+ERRDEF(STRCAPN,	"too many captures")
+ERRDEF(STRCAPU,	"unfinished capture")
+ERRDEF(STRFMT,	"invalid option " LUA_QS " to " LUA_QL("format"))
+ERRDEF(STRGSRV,	"invalid replacement value (a %s)")
+ERRDEF(BADMODN,	"name conflict for module " LUA_QS)
+#if LJ_HASJIT
+ERRDEF(JITPROT,	"runtime code generation failed, restricted kernel?")
+ERRDEF(NOJIT,	"JIT compiler disabled")
+#elif defined(LJ_ARCH_NOJIT)
+ERRDEF(NOJIT,	"no JIT compiler for this architecture (yet)")
+#else
+ERRDEF(NOJIT,	"JIT compiler permanently disabled by build option")
+#endif
+ERRDEF(JITOPT,	"unknown or malformed optimization flag " LUA_QS)
+
+/* Lexer/parser errors. */
+ERRDEF(XMODE,	"attempt to load chunk with wrong mode")
+ERRDEF(XNEAR,	"%s near " LUA_QS)
+ERRDEF(XLINES,	"chunk has too many lines")
+ERRDEF(XLEVELS,	"chunk has too many syntax levels")
+ERRDEF(XNUMBER,	"malformed number")
+ERRDEF(XLSTR,	"unfinished long string")
+ERRDEF(XLCOM,	"unfinished long comment")
+ERRDEF(XSTR,	"unfinished string")
+ERRDEF(XESC,	"invalid escape sequence")
+ERRDEF(XLDELIM,	"invalid long string delimiter")
+ERRDEF(XTOKEN,	LUA_QS " expected")
+ERRDEF(XJUMP,	"control structure too long")
+ERRDEF(XSLOTS,	"function or expression too complex")
+ERRDEF(XLIMC,	"chunk has more than %d local variables")
+ERRDEF(XLIMM,	"main function has more than %d %s")
+ERRDEF(XLIMF,	"function at line %d has more than %d %s")
+ERRDEF(XMATCH,	LUA_QS " expected (to close " LUA_QS " at line %d)")
+ERRDEF(XFIXUP,	"function too long for return fixup")
+ERRDEF(XPARAM,	"<name> or " LUA_QL("...") " expected")
+#if !LJ_52
+ERRDEF(XAMBIG,	"ambiguous syntax (function call x new statement)")
+#endif
+ERRDEF(XFUNARG,	"function arguments expected")
+ERRDEF(XSYMBOL,	"unexpected symbol")
+ERRDEF(XDOTS,	"cannot use " LUA_QL("...") " outside a vararg function")
+ERRDEF(XSYNTAX,	"syntax error")
+ERRDEF(XFOR,	LUA_QL("=") " or " LUA_QL("in") " expected")
+ERRDEF(XBREAK,	"no loop to break")
+ERRDEF(XLUNDEF,	"undefined label " LUA_QS)
+ERRDEF(XLDUP,	"duplicate label " LUA_QS)
+ERRDEF(XGSCOPE,	"<goto %s> jumps into the scope of local " LUA_QS)
+
+/* Bytecode reader errors. */
+ERRDEF(BCFMT,	"cannot load incompatible bytecode")
+ERRDEF(BCBAD,	"cannot load malformed bytecode")
+
+#if LJ_HASFFI
+/* FFI errors. */
+ERRDEF(FFI_INVTYPE,	"invalid C type")
+ERRDEF(FFI_INVSIZE,	"size of C type is unknown or too large")
+ERRDEF(FFI_BADSCL,	"bad storage class")
+ERRDEF(FFI_DECLSPEC,	"declaration specifier expected")
+ERRDEF(FFI_BADTAG,	"undeclared or implicit tag " LUA_QS)
+ERRDEF(FFI_REDEF,	"attempt to redefine " LUA_QS)
+ERRDEF(FFI_NUMPARAM,	"wrong number of type parameters")
+ERRDEF(FFI_INITOV,	"too many initializers for " LUA_QS)
+ERRDEF(FFI_BADCONV,	"cannot convert " LUA_QS " to " LUA_QS)
+ERRDEF(FFI_BADLEN,	"attempt to get length of " LUA_QS)
+ERRDEF(FFI_BADCONCAT,	"attempt to concatenate " LUA_QS " and " LUA_QS)
+ERRDEF(FFI_BADARITH,	"attempt to perform arithmetic on " LUA_QS " and " LUA_QS)
+ERRDEF(FFI_BADCOMP,	"attempt to compare " LUA_QS " with " LUA_QS)
+ERRDEF(FFI_BADCALL,	LUA_QS " is not callable")
+ERRDEF(FFI_NUMARG,	"wrong number of arguments for function call")
+ERRDEF(FFI_BADMEMBER,	LUA_QS " has no member named " LUA_QS)
+ERRDEF(FFI_BADIDX,	LUA_QS " cannot be indexed")
+ERRDEF(FFI_BADIDXW,	LUA_QS " cannot be indexed with " LUA_QS)
+ERRDEF(FFI_BADMM,	LUA_QS " has no " LUA_QS " metamethod")
+ERRDEF(FFI_WRCONST,	"attempt to write to constant location")
+ERRDEF(FFI_NODECL,	"missing declaration for symbol " LUA_QS)
+ERRDEF(FFI_BADCBACK,	"bad callback")
+#if LJ_OS_NOJIT
+ERRDEF(FFI_CBACKOV,	"no support for callbacks on this OS")
+#else
+ERRDEF(FFI_CBACKOV,	"too many callbacks")
+#endif
+ERRDEF(FFI_NYIPACKBIT,	"NYI: packed bit fields")
+ERRDEF(FFI_NYICALL,	"NYI: cannot call this C function (yet)")
+#endif
+
+#if LJ_HASBUFFER
+/* String buffer errors. */
+ERRDEF(BUFFER_SELF,	"cannot put buffer into itself")
+ERRDEF(BUFFER_BADOPT,	"bad options table")
+ERRDEF(BUFFER_BADENC,	"cannot serialize " LUA_QS)
+ERRDEF(BUFFER_BADDEC,	"cannot deserialize tag 0x%02x")
+ERRDEF(BUFFER_BADDICTX,	"cannot deserialize dictionary index %d")
+ERRDEF(BUFFER_DEPTH,	"too deep to serialize")
+ERRDEF(BUFFER_DUPKEY,	"duplicate table key")
+ERRDEF(BUFFER_EOB,	"unexpected end of buffer")
+ERRDEF(BUFFER_LEFTOV,	"left-over data in buffer")
+#endif
+
+#undef ERRDEF
+
+/* Detecting unused error messages:
+   awk -F, '/^ERRDEF/ { gsub(/ERRDEF./, ""); printf "grep -q LJ_ERR_%s *.[ch] || echo %s\n", $1, $1}' lj_errmsg.h | sh
+*/
diff --git a/libs/luajit-cmake/luajit/src/lj_ff.h b/libs/luajit-cmake/luajit/src/lj_ff.h
new file mode 100644
index 0000000..d00c32f
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_ff.h
@@ -0,0 +1,18 @@
+/*
+** Fast function IDs.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_FF_H
+#define _LJ_FF_H
+
+/* Fast function ID. */
+typedef enum {
+  FF_LUA_ = FF_LUA,	/* Lua function (must be 0). */
+  FF_C_ = FF_C,		/* Regular C function (must be 1). */
+#define FFDEF(name)	FF_##name,
+#include "lj_ffdef.h"
+  FF__MAX
+} FastFunc;
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_ffrecord.c b/libs/luajit-cmake/luajit/src/lj_ffrecord.c
new file mode 100644
index 0000000..022de1a
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_ffrecord.c
@@ -0,0 +1,1574 @@
+/*
+** Fast function call recorder.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_ffrecord_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_frame.h"
+#include "lj_bc.h"
+#include "lj_ff.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_ircall.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#include "lj_record.h"
+#include "lj_ffrecord.h"
+#include "lj_crecord.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+#include "lj_strscan.h"
+#include "lj_strfmt.h"
+#include "lj_serialize.h"
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)			(&J->cur.ir[(ref)])
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+/* -- Fast function recording handlers ------------------------------------ */
+
+/* Conventions for fast function call handlers:
+**
+** The argument slots start at J->base[0]. All of them are guaranteed to be
+** valid and type-specialized references. J->base[J->maxslot] is set to 0
+** as a sentinel. The runtime argument values start at rd->argv[0].
+**
+** In general fast functions should check for presence of all of their
+** arguments and for the correct argument types. Some simplifications
+** are allowed if the interpreter throws instead. But even if recording
+** is aborted, the generated IR must be consistent (no zero-refs).
+**
+** The number of results in rd->nres is set to 1. Handlers that return
+** a different number of results need to override it. A negative value
+** prevents return processing (e.g. for pending calls).
+**
+** Results need to be stored starting at J->base[0]. Return processing
+** moves them to the right slots later.
+**
+** The per-ffid auxiliary data is the value of the 2nd part of the
+** LJLIB_REC() annotation. This allows handling similar functionality
+** in a common handler.
+*/
+
+/* Type of handler to record a fast function. */
+typedef void (LJ_FASTCALL *RecordFunc)(jit_State *J, RecordFFData *rd);
+
+/* Get runtime value of int argument. */
+static int32_t argv2int(jit_State *J, TValue *o)
+{
+  if (!lj_strscan_numberobj(o))
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  return tvisint(o) ? intV(o) : lj_num2int(numV(o));
+}
+
+/* Get runtime value of string argument. */
+static GCstr *argv2str(jit_State *J, TValue *o)
+{
+  if (LJ_LIKELY(tvisstr(o))) {
+    return strV(o);
+  } else {
+    GCstr *s;
+    if (!tvisnumber(o))
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+    s = lj_strfmt_number(J->L, o);
+    setstrV(J->L, o, s);
+    return s;
+  }
+}
+
+/* Return number of results wanted by caller. */
+static ptrdiff_t results_wanted(jit_State *J)
+{
+  TValue *frame = J->L->base-1;
+  if (frame_islua(frame))
+    return (ptrdiff_t)bc_b(frame_pc(frame)[-1]) - 1;
+  else
+    return -1;
+}
+
+/* Trace stitching: add continuation below frame to start a new trace. */
+static void recff_stitch(jit_State *J)
+{
+  ASMFunction cont = lj_cont_stitch;
+  lua_State *L = J->L;
+  TValue *base = L->base;
+  BCReg nslot = J->maxslot + 1 + LJ_FR2;
+  TValue *nframe = base + 1 + LJ_FR2;
+  const BCIns *pc = frame_pc(base-1);
+  TValue *pframe = frame_prevl(base-1);
+
+  /* Check for this now. Throwing in lj_record_stop messes up the stack. */
+  if (J->cur.nsnap >= (MSize)J->param[JIT_P_maxsnap])
+    lj_trace_err(J, LJ_TRERR_SNAPOV);
+
+  /* Move func + args up in Lua stack and insert continuation. */
+  memmove(&base[1], &base[-1-LJ_FR2], sizeof(TValue)*nslot);
+  setframe_ftsz(nframe, ((char *)nframe - (char *)pframe) + FRAME_CONT);
+  setcont(base-LJ_FR2, cont);
+  setframe_pc(base, pc);
+  setnilV(base-1-LJ_FR2);  /* Incorrect, but rec_check_slots() won't run anymore. */
+  L->base += 2 + LJ_FR2;
+  L->top += 2 + LJ_FR2;
+
+  /* Ditto for the IR. */
+  memmove(&J->base[1], &J->base[-1-LJ_FR2], sizeof(TRef)*nslot);
+#if LJ_FR2
+  J->base[2] = TREF_FRAME;
+  J->base[-1] = lj_ir_k64(J, IR_KNUM, u64ptr(contptr(cont)));
+  J->base[0] = lj_ir_k64(J, IR_KNUM, u64ptr(pc)) | TREF_CONT;
+#else
+  J->base[0] = lj_ir_kptr(J, contptr(cont)) | TREF_CONT;
+#endif
+  J->ktrace = tref_ref((J->base[-1-LJ_FR2] = lj_ir_ktrace(J)));
+  J->base += 2 + LJ_FR2;
+  J->baseslot += 2 + LJ_FR2;
+  J->framedepth++;
+
+  lj_record_stop(J, LJ_TRLINK_STITCH, 0);
+
+  /* Undo Lua stack changes. */
+  memmove(&base[-1-LJ_FR2], &base[1], sizeof(TValue)*nslot);
+  setframe_pc(base-1, pc);
+  L->base -= 2 + LJ_FR2;
+  L->top -= 2 + LJ_FR2;
+}
+
+/* Fallback handler for fast functions that are not recorded (yet). */
+static void LJ_FASTCALL recff_nyi(jit_State *J, RecordFFData *rd)
+{
+  if (J->cur.nins < (IRRef)J->param[JIT_P_minstitch] + REF_BASE) {
+    lj_trace_err_info(J, LJ_TRERR_TRACEUV);
+  } else {
+    /* Can only stitch from Lua call. */
+    if (J->framedepth && frame_islua(J->L->base-1)) {
+      BCOp op = bc_op(*frame_pc(J->L->base-1));
+      /* Stitched trace cannot start with *M op with variable # of args. */
+      if (!(op == BC_CALLM || op == BC_CALLMT ||
+	    op == BC_RETM || op == BC_TSETM)) {
+	switch (J->fn->c.ffid) {
+	case FF_error:
+	case FF_debug_sethook:
+	case FF_jit_flush:
+	  break;  /* Don't stitch across special builtins. */
+	default:
+	  recff_stitch(J);  /* Use trace stitching. */
+	  rd->nres = -1;
+	  return;
+	}
+      }
+    }
+    /* Otherwise stop trace and return to interpreter. */
+    lj_record_stop(J, LJ_TRLINK_RETURN, 0);
+    rd->nres = -1;
+  }
+}
+
+/* Fallback handler for unsupported variants of fast functions. */
+#define recff_nyiu	recff_nyi
+
+/* Must stop the trace for classic C functions with arbitrary side-effects. */
+#define recff_c		recff_nyi
+
+/* Emit BUFHDR for the global temporary buffer. */
+static TRef recff_bufhdr(jit_State *J)
+{
+  return emitir(IRT(IR_BUFHDR, IRT_PGC),
+		lj_ir_kptr(J, &J2G(J)->tmpbuf), IRBUFHDR_RESET);
+}
+
+/* Emit TMPREF. */
+static TRef recff_tmpref(jit_State *J, TRef tr, int mode)
+{
+  if (!LJ_DUALNUM && tref_isinteger(tr))
+    tr = emitir(IRTN(IR_CONV), tr, IRCONV_NUM_INT);
+  return emitir(IRT(IR_TMPREF, IRT_PGC), tr, mode);
+}
+
+/* -- Base library fast functions ----------------------------------------- */
+
+static void LJ_FASTCALL recff_assert(jit_State *J, RecordFFData *rd)
+{
+  /* Arguments already specialized. The interpreter throws for nil/false. */
+  rd->nres = J->maxslot;  /* Pass through all arguments. */
+}
+
+static void LJ_FASTCALL recff_type(jit_State *J, RecordFFData *rd)
+{
+  /* Arguments already specialized. Result is a constant string. Neat, huh? */
+  uint32_t t;
+  if (tvisnumber(&rd->argv[0]))
+    t = ~LJ_TNUMX;
+  else if (LJ_64 && !LJ_GC64 && tvislightud(&rd->argv[0]))
+    t = ~LJ_TLIGHTUD;
+  else
+    t = ~itype(&rd->argv[0]);
+  J->base[0] = lj_ir_kstr(J, strV(&J->fn->c.upvalue[t]));
+  UNUSED(rd);
+}
+
+static void LJ_FASTCALL recff_getmetatable(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  if (tr) {
+    RecordIndex ix;
+    ix.tab = tr;
+    copyTV(J->L, &ix.tabv, &rd->argv[0]);
+    if (lj_record_mm_lookup(J, &ix, MM_metatable))
+      J->base[0] = ix.mobj;
+    else
+      J->base[0] = ix.mt;
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_setmetatable(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  TRef mt = J->base[1];
+  if (tref_istab(tr) && (tref_istab(mt) || (mt && tref_isnil(mt)))) {
+    TRef fref, mtref;
+    RecordIndex ix;
+    ix.tab = tr;
+    copyTV(J->L, &ix.tabv, &rd->argv[0]);
+    lj_record_mm_lookup(J, &ix, MM_metatable); /* Guard for no __metatable. */
+    fref = emitir(IRT(IR_FREF, IRT_PGC), tr, IRFL_TAB_META);
+    mtref = tref_isnil(mt) ? lj_ir_knull(J, IRT_TAB) : mt;
+    emitir(IRT(IR_FSTORE, IRT_TAB), fref, mtref);
+    if (!tref_isnil(mt))
+      emitir(IRT(IR_TBAR, IRT_TAB), tr, 0);
+    J->base[0] = tr;
+    J->needsnap = 1;
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_rawget(jit_State *J, RecordFFData *rd)
+{
+  RecordIndex ix;
+  ix.tab = J->base[0]; ix.key = J->base[1];
+  if (tref_istab(ix.tab) && ix.key) {
+    ix.val = 0; ix.idxchain = 0;
+    settabV(J->L, &ix.tabv, tabV(&rd->argv[0]));
+    copyTV(J->L, &ix.keyv, &rd->argv[1]);
+    J->base[0] = lj_record_idx(J, &ix);
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_rawset(jit_State *J, RecordFFData *rd)
+{
+  RecordIndex ix;
+  ix.tab = J->base[0]; ix.key = J->base[1]; ix.val = J->base[2];
+  if (tref_istab(ix.tab) && ix.key && ix.val) {
+    ix.idxchain = 0;
+    settabV(J->L, &ix.tabv, tabV(&rd->argv[0]));
+    copyTV(J->L, &ix.keyv, &rd->argv[1]);
+    copyTV(J->L, &ix.valv, &rd->argv[2]);
+    lj_record_idx(J, &ix);
+    /* Pass through table at J->base[0] as result. */
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_rawequal(jit_State *J, RecordFFData *rd)
+{
+  TRef tra = J->base[0];
+  TRef trb = J->base[1];
+  if (tra && trb) {
+    int diff = lj_record_objcmp(J, tra, trb, &rd->argv[0], &rd->argv[1]);
+    J->base[0] = diff ? TREF_FALSE : TREF_TRUE;
+  }  /* else: Interpreter will throw. */
+}
+
+#if LJ_52
+static void LJ_FASTCALL recff_rawlen(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  if (tref_isstr(tr))
+    J->base[0] = emitir(IRTI(IR_FLOAD), tr, IRFL_STR_LEN);
+  else if (tref_istab(tr))
+    J->base[0] = emitir(IRTI(IR_ALEN), tr, TREF_NIL);
+  /* else: Interpreter will throw. */
+  UNUSED(rd);
+}
+#endif
+
+/* Determine mode of select() call. */
+int32_t lj_ffrecord_select_mode(jit_State *J, TRef tr, TValue *tv)
+{
+  if (tref_isstr(tr) && *strVdata(tv) == '#') {  /* select('#', ...) */
+    if (strV(tv)->len == 1) {
+      emitir(IRTG(IR_EQ, IRT_STR), tr, lj_ir_kstr(J, strV(tv)));
+    } else {
+      TRef trptr = emitir(IRT(IR_STRREF, IRT_PGC), tr, lj_ir_kint(J, 0));
+      TRef trchar = emitir(IRT(IR_XLOAD, IRT_U8), trptr, IRXLOAD_READONLY);
+      emitir(IRTGI(IR_EQ), trchar, lj_ir_kint(J, '#'));
+    }
+    return 0;
+  } else {  /* select(n, ...) */
+    int32_t start = argv2int(J, tv);
+    if (start == 0) lj_trace_err(J, LJ_TRERR_BADTYPE);  /* A bit misleading. */
+    return start;
+  }
+}
+
+static void LJ_FASTCALL recff_select(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  if (tr) {
+    ptrdiff_t start = lj_ffrecord_select_mode(J, tr, &rd->argv[0]);
+    if (start == 0) {  /* select('#', ...) */
+      J->base[0] = lj_ir_kint(J, J->maxslot - 1);
+    } else if (tref_isk(tr)) {  /* select(k, ...) */
+      ptrdiff_t n = (ptrdiff_t)J->maxslot;
+      if (start < 0) start += n;
+      else if (start > n) start = n;
+      if (start >= 1) {
+	ptrdiff_t i;
+	rd->nres = n - start;
+	for (i = 0; i < n - start; i++)
+	  J->base[i] = J->base[start+i];
+      }  /* else: Interpreter will throw. */
+    } else {
+      recff_nyiu(J, rd);
+      return;
+    }
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_tonumber(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  TRef base = J->base[1];
+  if (tr && !tref_isnil(base)) {
+    base = lj_opt_narrow_toint(J, base);
+    if (!tref_isk(base) || IR(tref_ref(base))->i != 10) {
+      recff_nyiu(J, rd);
+      return;
+    }
+  }
+  if (tref_isnumber_str(tr)) {
+    if (tref_isstr(tr)) {
+      TValue tmp;
+      if (!lj_strscan_num(strV(&rd->argv[0]), &tmp)) {
+	recff_nyiu(J, rd);  /* Would need an inverted STRTO for this case. */
+	return;
+      }
+      tr = emitir(IRTG(IR_STRTO, IRT_NUM), tr, 0);
+    }
+#if LJ_HASFFI
+  } else if (tref_iscdata(tr)) {
+    lj_crecord_tonumber(J, rd);
+    return;
+#endif
+  } else {
+    tr = TREF_NIL;
+  }
+  J->base[0] = tr;
+  UNUSED(rd);
+}
+
+static TValue *recff_metacall_cp(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  jit_State *J = (jit_State *)ud;
+  lj_record_tailcall(J, 0, 1);
+  UNUSED(L); UNUSED(dummy);
+  return NULL;
+}
+
+static int recff_metacall(jit_State *J, RecordFFData *rd, MMS mm)
+{
+  RecordIndex ix;
+  ix.tab = J->base[0];
+  copyTV(J->L, &ix.tabv, &rd->argv[0]);
+  if (lj_record_mm_lookup(J, &ix, mm)) {  /* Has metamethod? */
+    int errcode;
+    TValue argv0;
+    /* Temporarily insert metamethod below object. */
+    J->base[1+LJ_FR2] = J->base[0];
+    J->base[0] = ix.mobj;
+    copyTV(J->L, &argv0, &rd->argv[0]);
+    copyTV(J->L, &rd->argv[1+LJ_FR2], &rd->argv[0]);
+    copyTV(J->L, &rd->argv[0], &ix.mobjv);
+    /* Need to protect lj_record_tailcall because it may throw. */
+    errcode = lj_vm_cpcall(J->L, NULL, J, recff_metacall_cp);
+    /* Always undo Lua stack changes to avoid confusing the interpreter. */
+    copyTV(J->L, &rd->argv[0], &argv0);
+    if (errcode)
+      lj_err_throw(J->L, errcode);  /* Propagate errors. */
+    rd->nres = -1;  /* Pending call. */
+    return 1;  /* Tailcalled to metamethod. */
+  }
+  return 0;
+}
+
+static void LJ_FASTCALL recff_tostring(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  if (tref_isstr(tr)) {
+    /* Ignore __tostring in the string base metatable. */
+    /* Pass on result in J->base[0]. */
+  } else if (tr && !recff_metacall(J, rd, MM_tostring)) {
+    if (tref_isnumber(tr)) {
+      J->base[0] = emitir(IRT(IR_TOSTR, IRT_STR), tr,
+			  tref_isnum(tr) ? IRTOSTR_NUM : IRTOSTR_INT);
+    } else if (tref_ispri(tr)) {
+      J->base[0] = lj_ir_kstr(J, lj_strfmt_obj(J->L, &rd->argv[0]));
+    } else {
+      recff_nyiu(J, rd);
+      return;
+    }
+  }
+}
+
+static void LJ_FASTCALL recff_ipairs_aux(jit_State *J, RecordFFData *rd)
+{
+  RecordIndex ix;
+  ix.tab = J->base[0];
+  if (tref_istab(ix.tab)) {
+    if (!tvisnumber(&rd->argv[1]))  /* No support for string coercion. */
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+    setintV(&ix.keyv, numberVint(&rd->argv[1])+1);
+    settabV(J->L, &ix.tabv, tabV(&rd->argv[0]));
+    ix.val = 0; ix.idxchain = 0;
+    ix.key = lj_opt_narrow_toint(J, J->base[1]);
+    J->base[0] = ix.key = emitir(IRTI(IR_ADD), ix.key, lj_ir_kint(J, 1));
+    J->base[1] = lj_record_idx(J, &ix);
+    rd->nres = tref_isnil(J->base[1]) ? 0 : 2;
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_xpairs(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  if (!((LJ_52 || (LJ_HASFFI && tref_iscdata(tr))) &&
+	recff_metacall(J, rd, MM_pairs + rd->data))) {
+    if (tref_istab(tr)) {
+      J->base[0] = lj_ir_kfunc(J, funcV(&J->fn->c.upvalue[0]));
+      J->base[1] = tr;
+      J->base[2] = rd->data ? lj_ir_kint(J, 0) : TREF_NIL;
+      rd->nres = 3;
+    }  /* else: Interpreter will throw. */
+  }
+}
+
+static void LJ_FASTCALL recff_pcall(jit_State *J, RecordFFData *rd)
+{
+  if (J->maxslot >= 1) {
+#if LJ_FR2
+    /* Shift function arguments up. */
+    memmove(J->base + 1, J->base, sizeof(TRef) * J->maxslot);
+#endif
+    lj_record_call(J, 0, J->maxslot - 1);
+    rd->nres = -1;  /* Pending call. */
+    J->needsnap = 1;  /* Start catching on-trace errors. */
+  }  /* else: Interpreter will throw. */
+}
+
+static TValue *recff_xpcall_cp(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  jit_State *J = (jit_State *)ud;
+  lj_record_call(J, 1, J->maxslot - 2);
+  UNUSED(L); UNUSED(dummy);
+  return NULL;
+}
+
+static void LJ_FASTCALL recff_xpcall(jit_State *J, RecordFFData *rd)
+{
+  if (J->maxslot >= 2) {
+    TValue argv0, argv1;
+    TRef tmp;
+    int errcode;
+    /* Swap function and traceback. */
+    tmp = J->base[0]; J->base[0] = J->base[1]; J->base[1] = tmp;
+    copyTV(J->L, &argv0, &rd->argv[0]);
+    copyTV(J->L, &argv1, &rd->argv[1]);
+    copyTV(J->L, &rd->argv[0], &argv1);
+    copyTV(J->L, &rd->argv[1], &argv0);
+#if LJ_FR2
+    /* Shift function arguments up. */
+    memmove(J->base + 2, J->base + 1, sizeof(TRef) * (J->maxslot-1));
+#endif
+    /* Need to protect lj_record_call because it may throw. */
+    errcode = lj_vm_cpcall(J->L, NULL, J, recff_xpcall_cp);
+    /* Always undo Lua stack swap to avoid confusing the interpreter. */
+    copyTV(J->L, &rd->argv[0], &argv0);
+    copyTV(J->L, &rd->argv[1], &argv1);
+    if (errcode)
+      lj_err_throw(J->L, errcode);  /* Propagate errors. */
+    rd->nres = -1;  /* Pending call. */
+    J->needsnap = 1;  /* Start catching on-trace errors. */
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_getfenv(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  /* Only support getfenv(0) for now. */
+  if (tref_isint(tr) && tref_isk(tr) && IR(tref_ref(tr))->i == 0) {
+    TRef trl = emitir(IRT(IR_LREF, IRT_THREAD), 0, 0);
+    J->base[0] = emitir(IRT(IR_FLOAD, IRT_TAB), trl, IRFL_THREAD_ENV);
+    return;
+  }
+  recff_nyiu(J, rd);
+}
+
+static void LJ_FASTCALL recff_next(jit_State *J, RecordFFData *rd)
+{
+#if LJ_BE
+  /* YAGNI: Disabled on big-endian due to issues with lj_vm_next,
+  ** IR_HIOP, RID_RETLO/RID_RETHI and ra_destpair.
+  */
+  recff_nyi(J, rd);
+#else
+  TRef tab = J->base[0];
+  if (tref_istab(tab)) {
+    RecordIndex ix;
+    cTValue *keyv;
+    ix.tab = tab;
+    if (tref_isnil(J->base[1])) {  /* Shortcut for start of traversal. */
+      ix.key = lj_ir_kint(J, 0);
+      keyv = niltvg(J2G(J));
+    } else {
+      TRef tmp = recff_tmpref(J, J->base[1], IRTMPREF_IN1);
+      ix.key = lj_ir_call(J, IRCALL_lj_tab_keyindex, tab, tmp);
+      keyv = &rd->argv[1];
+    }
+    copyTV(J->L, &ix.tabv, &rd->argv[0]);
+    ix.keyv.u32.lo = lj_tab_keyindex(tabV(&ix.tabv), keyv);
+    /* Omit the value, if not used by the caller. */
+    ix.idxchain = (J->framedepth && frame_islua(J->L->base-1) &&
+		   bc_b(frame_pc(J->L->base-1)[-1])-1 < 2);
+    ix.mobj = 0;  /* We don't need the next index. */
+    rd->nres = lj_record_next(J, &ix);
+    J->base[0] = ix.key;
+    J->base[1] = ix.val;
+  }  /* else: Interpreter will throw. */
+#endif
+}
+
+/* -- Math library fast functions ----------------------------------------- */
+
+static void LJ_FASTCALL recff_math_abs(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_ir_tonum(J, J->base[0]);
+  J->base[0] = emitir(IRTN(IR_ABS), tr, lj_ir_ksimd(J, LJ_KSIMD_ABS));
+  UNUSED(rd);
+}
+
+/* Record rounding functions math.floor and math.ceil. */
+static void LJ_FASTCALL recff_math_round(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  if (!tref_isinteger(tr)) {  /* Pass through integers unmodified. */
+    tr = emitir(IRTN(IR_FPMATH), lj_ir_tonum(J, tr), rd->data);
+    /* Result is integral (or NaN/Inf), but may not fit an int32_t. */
+    if (LJ_DUALNUM) {  /* Try to narrow using a guarded conversion to int. */
+      lua_Number n = lj_vm_foldfpm(numberVnum(&rd->argv[0]), rd->data);
+      if (n == (lua_Number)lj_num2int(n))
+	tr = emitir(IRTGI(IR_CONV), tr, IRCONV_INT_NUM|IRCONV_CHECK);
+    }
+    J->base[0] = tr;
+  }
+}
+
+/* Record unary math.* functions, mapped to IR_FPMATH opcode. */
+static void LJ_FASTCALL recff_math_unary(jit_State *J, RecordFFData *rd)
+{
+  J->base[0] = emitir(IRTN(IR_FPMATH), lj_ir_tonum(J, J->base[0]), rd->data);
+}
+
+/* Record math.log. */
+static void LJ_FASTCALL recff_math_log(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_ir_tonum(J, J->base[0]);
+  if (J->base[1]) {
+#ifdef LUAJIT_NO_LOG2
+    uint32_t fpm = IRFPM_LOG;
+#else
+    uint32_t fpm = IRFPM_LOG2;
+#endif
+    TRef trb = lj_ir_tonum(J, J->base[1]);
+    tr = emitir(IRTN(IR_FPMATH), tr, fpm);
+    trb = emitir(IRTN(IR_FPMATH), trb, fpm);
+    trb = emitir(IRTN(IR_DIV), lj_ir_knum_one(J), trb);
+    tr = emitir(IRTN(IR_MUL), tr, trb);
+  } else {
+    tr = emitir(IRTN(IR_FPMATH), tr, IRFPM_LOG);
+  }
+  J->base[0] = tr;
+  UNUSED(rd);
+}
+
+/* Record math.atan2. */
+static void LJ_FASTCALL recff_math_atan2(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_ir_tonum(J, J->base[0]);
+  TRef tr2 = lj_ir_tonum(J, J->base[1]);
+  J->base[0] = lj_ir_call(J, IRCALL_atan2, tr, tr2);
+  UNUSED(rd);
+}
+
+/* Record math.ldexp. */
+static void LJ_FASTCALL recff_math_ldexp(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_ir_tonum(J, J->base[0]);
+#if LJ_TARGET_X86ORX64
+  TRef tr2 = lj_ir_tonum(J, J->base[1]);
+#else
+  TRef tr2 = lj_opt_narrow_toint(J, J->base[1]);
+#endif
+  J->base[0] = emitir(IRTN(IR_LDEXP), tr, tr2);
+  UNUSED(rd);
+}
+
+static void LJ_FASTCALL recff_math_call(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_ir_tonum(J, J->base[0]);
+  J->base[0] = emitir(IRTN(IR_CALLN), tr, rd->data);
+}
+
+static void LJ_FASTCALL recff_math_pow(jit_State *J, RecordFFData *rd)
+{
+  J->base[0] = lj_opt_narrow_arith(J, J->base[0], J->base[1],
+				   &rd->argv[0], &rd->argv[1], IR_POW);
+  UNUSED(rd);
+}
+
+static void LJ_FASTCALL recff_math_minmax(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = lj_ir_tonumber(J, J->base[0]);
+  uint32_t op = rd->data;
+  BCReg i;
+  for (i = 1; J->base[i] != 0; i++) {
+    TRef tr2 = lj_ir_tonumber(J, J->base[i]);
+    IRType t = IRT_INT;
+    if (!(tref_isinteger(tr) && tref_isinteger(tr2))) {
+      if (tref_isinteger(tr)) tr = emitir(IRTN(IR_CONV), tr, IRCONV_NUM_INT);
+      if (tref_isinteger(tr2)) tr2 = emitir(IRTN(IR_CONV), tr2, IRCONV_NUM_INT);
+      t = IRT_NUM;
+    }
+    tr = emitir(IRT(op, t), tr, tr2);
+  }
+  J->base[0] = tr;
+}
+
+static void LJ_FASTCALL recff_math_random(jit_State *J, RecordFFData *rd)
+{
+  GCudata *ud = udataV(&J->fn->c.upvalue[0]);
+  TRef tr, one;
+  lj_ir_kgc(J, obj2gco(ud), IRT_UDATA);  /* Prevent collection. */
+  tr = lj_ir_call(J, IRCALL_lj_prng_u64d, lj_ir_kptr(J, uddata(ud)));
+  one = lj_ir_knum_one(J);
+  tr = emitir(IRTN(IR_SUB), tr, one);
+  if (J->base[0]) {
+    TRef tr1 = lj_ir_tonum(J, J->base[0]);
+    if (J->base[1]) {  /* d = floor(d*(r2-r1+1.0)) + r1 */
+      TRef tr2 = lj_ir_tonum(J, J->base[1]);
+      tr2 = emitir(IRTN(IR_SUB), tr2, tr1);
+      tr2 = emitir(IRTN(IR_ADD), tr2, one);
+      tr = emitir(IRTN(IR_MUL), tr, tr2);
+      tr = emitir(IRTN(IR_FPMATH), tr, IRFPM_FLOOR);
+      tr = emitir(IRTN(IR_ADD), tr, tr1);
+    } else {  /* d = floor(d*r1) + 1.0 */
+      tr = emitir(IRTN(IR_MUL), tr, tr1);
+      tr = emitir(IRTN(IR_FPMATH), tr, IRFPM_FLOOR);
+      tr = emitir(IRTN(IR_ADD), tr, one);
+    }
+  }
+  J->base[0] = tr;
+  UNUSED(rd);
+}
+
+/* -- Bit library fast functions ------------------------------------------ */
+
+/* Record bit.tobit. */
+static void LJ_FASTCALL recff_bit_tobit(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+#if LJ_HASFFI
+  if (tref_iscdata(tr)) { recff_bit64_tobit(J, rd); return; }
+#endif
+  J->base[0] = lj_opt_narrow_tobit(J, tr);
+  UNUSED(rd);
+}
+
+/* Record unary bit.bnot, bit.bswap. */
+static void LJ_FASTCALL recff_bit_unary(jit_State *J, RecordFFData *rd)
+{
+#if LJ_HASFFI
+  if (recff_bit64_unary(J, rd))
+    return;
+#endif
+  J->base[0] = emitir(IRTI(rd->data), lj_opt_narrow_tobit(J, J->base[0]), 0);
+}
+
+/* Record N-ary bit.band, bit.bor, bit.bxor. */
+static void LJ_FASTCALL recff_bit_nary(jit_State *J, RecordFFData *rd)
+{
+#if LJ_HASFFI
+  if (recff_bit64_nary(J, rd))
+    return;
+#endif
+  {
+    TRef tr = lj_opt_narrow_tobit(J, J->base[0]);
+    uint32_t ot = IRTI(rd->data);
+    BCReg i;
+    for (i = 1; J->base[i] != 0; i++)
+      tr = emitir(ot, tr, lj_opt_narrow_tobit(J, J->base[i]));
+    J->base[0] = tr;
+  }
+}
+
+/* Record bit shifts. */
+static void LJ_FASTCALL recff_bit_shift(jit_State *J, RecordFFData *rd)
+{
+#if LJ_HASFFI
+  if (recff_bit64_shift(J, rd))
+    return;
+#endif
+  {
+    TRef tr = lj_opt_narrow_tobit(J, J->base[0]);
+    TRef tsh = lj_opt_narrow_tobit(J, J->base[1]);
+    IROp op = (IROp)rd->data;
+    if (!(op < IR_BROL ? LJ_TARGET_MASKSHIFT : LJ_TARGET_MASKROT) &&
+	!tref_isk(tsh))
+      tsh = emitir(IRTI(IR_BAND), tsh, lj_ir_kint(J, 31));
+#ifdef LJ_TARGET_UNIFYROT
+    if (op == (LJ_TARGET_UNIFYROT == 1 ? IR_BROR : IR_BROL)) {
+      op = LJ_TARGET_UNIFYROT == 1 ? IR_BROL : IR_BROR;
+      tsh = emitir(IRTI(IR_NEG), tsh, tsh);
+    }
+#endif
+    J->base[0] = emitir(IRTI(op), tr, tsh);
+  }
+}
+
+static void LJ_FASTCALL recff_bit_tohex(jit_State *J, RecordFFData *rd)
+{
+#if LJ_HASFFI
+  TRef hdr = recff_bufhdr(J);
+  TRef tr = recff_bit64_tohex(J, rd, hdr);
+  J->base[0] = emitir(IRTG(IR_BUFSTR, IRT_STR), tr, hdr);
+#else
+  recff_nyiu(J, rd);  /* Don't bother working around this NYI. */
+#endif
+}
+
+/* -- String library fast functions --------------------------------------- */
+
+/* Specialize to relative starting position for string. */
+static TRef recff_string_start(jit_State *J, GCstr *s, int32_t *st, TRef tr,
+			       TRef trlen, TRef tr0)
+{
+  int32_t start = *st;
+  if (start < 0) {
+    emitir(IRTGI(IR_LT), tr, tr0);
+    tr = emitir(IRTI(IR_ADD), trlen, tr);
+    start = start + (int32_t)s->len;
+    emitir(start < 0 ? IRTGI(IR_LT) : IRTGI(IR_GE), tr, tr0);
+    if (start < 0) {
+      tr = tr0;
+      start = 0;
+    }
+  } else if (start == 0) {
+    emitir(IRTGI(IR_EQ), tr, tr0);
+    tr = tr0;
+  } else {
+    tr = emitir(IRTI(IR_ADD), tr, lj_ir_kint(J, -1));
+    emitir(IRTGI(IR_GE), tr, tr0);
+    start--;
+  }
+  *st = start;
+  return tr;
+}
+
+/* Handle string.byte (rd->data = 0) and string.sub (rd->data = 1). */
+static void LJ_FASTCALL recff_string_range(jit_State *J, RecordFFData *rd)
+{
+  TRef trstr = lj_ir_tostr(J, J->base[0]);
+  TRef trlen = emitir(IRTI(IR_FLOAD), trstr, IRFL_STR_LEN);
+  TRef tr0 = lj_ir_kint(J, 0);
+  TRef trstart, trend;
+  GCstr *str = argv2str(J, &rd->argv[0]);
+  int32_t start, end;
+  if (rd->data) {  /* string.sub(str, start [,end]) */
+    start = argv2int(J, &rd->argv[1]);
+    trstart = lj_opt_narrow_toint(J, J->base[1]);
+    trend = J->base[2];
+    if (tref_isnil(trend)) {
+      trend = lj_ir_kint(J, -1);
+      end = -1;
+    } else {
+      trend = lj_opt_narrow_toint(J, trend);
+      end = argv2int(J, &rd->argv[2]);
+    }
+  } else {  /* string.byte(str, [,start [,end]]) */
+    if (tref_isnil(J->base[1])) {
+      start = 1;
+      trstart = lj_ir_kint(J, 1);
+    } else {
+      start = argv2int(J, &rd->argv[1]);
+      trstart = lj_opt_narrow_toint(J, J->base[1]);
+    }
+    if (J->base[1] && !tref_isnil(J->base[2])) {
+      trend = lj_opt_narrow_toint(J, J->base[2]);
+      end = argv2int(J, &rd->argv[2]);
+    } else {
+      trend = trstart;
+      end = start;
+    }
+  }
+  if (end < 0) {
+    emitir(IRTGI(IR_LT), trend, tr0);
+    trend = emitir(IRTI(IR_ADD), emitir(IRTI(IR_ADD), trlen, trend),
+		   lj_ir_kint(J, 1));
+    end = end+(int32_t)str->len+1;
+  } else if ((MSize)end <= str->len) {
+    emitir(IRTGI(IR_ULE), trend, trlen);
+  } else {
+    emitir(IRTGI(IR_UGT), trend, trlen);
+    end = (int32_t)str->len;
+    trend = trlen;
+  }
+  trstart = recff_string_start(J, str, &start, trstart, trlen, tr0);
+  if (rd->data) {  /* Return string.sub result. */
+    if (end - start >= 0) {
+      /* Also handle empty range here, to avoid extra traces. */
+      TRef trptr, trslen = emitir(IRTI(IR_SUB), trend, trstart);
+      emitir(IRTGI(IR_GE), trslen, tr0);
+      trptr = emitir(IRT(IR_STRREF, IRT_PGC), trstr, trstart);
+      J->base[0] = emitir(IRT(IR_SNEW, IRT_STR), trptr, trslen);
+    } else {  /* Range underflow: return empty string. */
+      emitir(IRTGI(IR_LT), trend, trstart);
+      J->base[0] = lj_ir_kstr(J, &J2G(J)->strempty);
+    }
+  } else {  /* Return string.byte result(s). */
+    ptrdiff_t i, len = end - start;
+    if (len > 0) {
+      TRef trslen = emitir(IRTI(IR_SUB), trend, trstart);
+      emitir(IRTGI(IR_EQ), trslen, lj_ir_kint(J, (int32_t)len));
+      if (J->baseslot + len > LJ_MAX_JSLOTS)
+	lj_trace_err_info(J, LJ_TRERR_STACKOV);
+      rd->nres = len;
+      for (i = 0; i < len; i++) {
+	TRef tmp = emitir(IRTI(IR_ADD), trstart, lj_ir_kint(J, (int32_t)i));
+	tmp = emitir(IRT(IR_STRREF, IRT_PGC), trstr, tmp);
+	J->base[i] = emitir(IRT(IR_XLOAD, IRT_U8), tmp, IRXLOAD_READONLY);
+      }
+    } else {  /* Empty range or range underflow: return no results. */
+      emitir(IRTGI(IR_LE), trend, trstart);
+      rd->nres = 0;
+    }
+  }
+}
+
+static void LJ_FASTCALL recff_string_char(jit_State *J, RecordFFData *rd)
+{
+  TRef k255 = lj_ir_kint(J, 255);
+  BCReg i;
+  for (i = 0; J->base[i] != 0; i++) {  /* Convert char values to strings. */
+    TRef tr = lj_opt_narrow_toint(J, J->base[i]);
+    emitir(IRTGI(IR_ULE), tr, k255);
+    J->base[i] = emitir(IRT(IR_TOSTR, IRT_STR), tr, IRTOSTR_CHAR);
+  }
+  if (i > 1) {  /* Concatenate the strings, if there's more than one. */
+    TRef hdr = recff_bufhdr(J), tr = hdr;
+    for (i = 0; J->base[i] != 0; i++)
+      tr = emitir(IRTG(IR_BUFPUT, IRT_PGC), tr, J->base[i]);
+    J->base[0] = emitir(IRTG(IR_BUFSTR, IRT_STR), tr, hdr);
+  } else if (i == 0) {
+    J->base[0] = lj_ir_kstr(J, &J2G(J)->strempty);
+  }
+  UNUSED(rd);
+}
+
+static void LJ_FASTCALL recff_string_rep(jit_State *J, RecordFFData *rd)
+{
+  TRef str = lj_ir_tostr(J, J->base[0]);
+  TRef rep = lj_opt_narrow_toint(J, J->base[1]);
+  TRef hdr, tr, str2 = 0;
+  if (!tref_isnil(J->base[2])) {
+    TRef sep = lj_ir_tostr(J, J->base[2]);
+    int32_t vrep = argv2int(J, &rd->argv[1]);
+    emitir(IRTGI(vrep > 1 ? IR_GT : IR_LE), rep, lj_ir_kint(J, 1));
+    if (vrep > 1) {
+      TRef hdr2 = recff_bufhdr(J);
+      TRef tr2 = emitir(IRTG(IR_BUFPUT, IRT_PGC), hdr2, sep);
+      tr2 = emitir(IRTG(IR_BUFPUT, IRT_PGC), tr2, str);
+      str2 = emitir(IRTG(IR_BUFSTR, IRT_STR), tr2, hdr2);
+    }
+  }
+  tr = hdr = recff_bufhdr(J);
+  if (str2) {
+    tr = emitir(IRTG(IR_BUFPUT, IRT_PGC), tr, str);
+    str = str2;
+    rep = emitir(IRTI(IR_ADD), rep, lj_ir_kint(J, -1));
+  }
+  tr = lj_ir_call(J, IRCALL_lj_buf_putstr_rep, tr, str, rep);
+  J->base[0] = emitir(IRTG(IR_BUFSTR, IRT_STR), tr, hdr);
+}
+
+static void LJ_FASTCALL recff_string_op(jit_State *J, RecordFFData *rd)
+{
+  TRef str = lj_ir_tostr(J, J->base[0]);
+  TRef hdr = recff_bufhdr(J);
+  TRef tr = lj_ir_call(J, rd->data, hdr, str);
+  J->base[0] = emitir(IRTG(IR_BUFSTR, IRT_STR), tr, hdr);
+}
+
+static void LJ_FASTCALL recff_string_find(jit_State *J, RecordFFData *rd)
+{
+  TRef trstr = lj_ir_tostr(J, J->base[0]);
+  TRef trpat = lj_ir_tostr(J, J->base[1]);
+  TRef trlen = emitir(IRTI(IR_FLOAD), trstr, IRFL_STR_LEN);
+  TRef tr0 = lj_ir_kint(J, 0);
+  TRef trstart;
+  GCstr *str = argv2str(J, &rd->argv[0]);
+  GCstr *pat = argv2str(J, &rd->argv[1]);
+  int32_t start;
+  J->needsnap = 1;
+  if (tref_isnil(J->base[2])) {
+    trstart = lj_ir_kint(J, 1);
+    start = 1;
+  } else {
+    trstart = lj_opt_narrow_toint(J, J->base[2]);
+    start = argv2int(J, &rd->argv[2]);
+  }
+  trstart = recff_string_start(J, str, &start, trstart, trlen, tr0);
+  if ((MSize)start <= str->len) {
+    emitir(IRTGI(IR_ULE), trstart, trlen);
+  } else {
+    emitir(IRTGI(IR_UGT), trstart, trlen);
+#if LJ_52
+    J->base[0] = TREF_NIL;
+    return;
+#else
+    trstart = trlen;
+    start = str->len;
+#endif
+  }
+  /* Fixed arg or no pattern matching chars? (Specialized to pattern string.) */
+  if ((J->base[2] && tref_istruecond(J->base[3])) ||
+      (emitir(IRTG(IR_EQ, IRT_STR), trpat, lj_ir_kstr(J, pat)),
+       !lj_str_haspattern(pat))) {  /* Search for fixed string. */
+    TRef trsptr = emitir(IRT(IR_STRREF, IRT_PGC), trstr, trstart);
+    TRef trpptr = emitir(IRT(IR_STRREF, IRT_PGC), trpat, tr0);
+    TRef trslen = emitir(IRTI(IR_SUB), trlen, trstart);
+    TRef trplen = emitir(IRTI(IR_FLOAD), trpat, IRFL_STR_LEN);
+    TRef tr = lj_ir_call(J, IRCALL_lj_str_find, trsptr, trpptr, trslen, trplen);
+    TRef trp0 = lj_ir_kkptr(J, NULL);
+    if (lj_str_find(strdata(str)+(MSize)start, strdata(pat),
+		    str->len-(MSize)start, pat->len)) {
+      TRef pos;
+      emitir(IRTG(IR_NE, IRT_PGC), tr, trp0);
+      /* Recompute offset. trsptr may not point into trstr after folding. */
+      pos = emitir(IRTI(IR_ADD), emitir(IRTI(IR_SUB), tr, trsptr), trstart);
+      J->base[0] = emitir(IRTI(IR_ADD), pos, lj_ir_kint(J, 1));
+      J->base[1] = emitir(IRTI(IR_ADD), pos, trplen);
+      rd->nres = 2;
+    } else {
+      emitir(IRTG(IR_EQ, IRT_PGC), tr, trp0);
+      J->base[0] = TREF_NIL;
+    }
+  } else {  /* Search for pattern. */
+    recff_nyiu(J, rd);
+    return;
+  }
+}
+
+static void recff_format(jit_State *J, RecordFFData *rd, TRef hdr, int sbufx)
+{
+  ptrdiff_t arg = sbufx;
+  TRef tr = hdr, trfmt = lj_ir_tostr(J, J->base[arg]);
+  GCstr *fmt = argv2str(J, &rd->argv[arg]);
+  FormatState fs;
+  SFormat sf;
+  /* Specialize to the format string. */
+  emitir(IRTG(IR_EQ, IRT_STR), trfmt, lj_ir_kstr(J, fmt));
+  lj_strfmt_init(&fs, strdata(fmt), fmt->len);
+  while ((sf = lj_strfmt_parse(&fs)) != STRFMT_EOF) {  /* Parse format. */
+    TRef tra = sf == STRFMT_LIT ? 0 : J->base[++arg];
+    TRef trsf = lj_ir_kint(J, (int32_t)sf);
+    IRCallID id;
+    switch (STRFMT_TYPE(sf)) {
+    case STRFMT_LIT:
+      tr = emitir(IRTG(IR_BUFPUT, IRT_PGC), tr,
+		  lj_ir_kstr(J, lj_str_new(J->L, fs.str, fs.len)));
+      break;
+    case STRFMT_INT:
+      id = IRCALL_lj_strfmt_putfnum_int;
+    handle_int:
+      if (!tref_isinteger(tra)) {
+#if LJ_HASFFI
+	if (tref_iscdata(tra)) {
+	  tra = lj_crecord_loadiu64(J, tra, &rd->argv[arg]);
+	  tr = lj_ir_call(J, IRCALL_lj_strfmt_putfxint, tr, trsf, tra);
+	  break;
+	}
+#endif
+	goto handle_num;
+      }
+      if (sf == STRFMT_INT) { /* Shortcut for plain %d. */
+	tr = emitir(IRTG(IR_BUFPUT, IRT_PGC), tr,
+		    emitir(IRT(IR_TOSTR, IRT_STR), tra, IRTOSTR_INT));
+      } else {
+#if LJ_HASFFI
+	tra = emitir(IRT(IR_CONV, IRT_U64), tra,
+		     (IRT_INT|(IRT_U64<<5)|IRCONV_SEXT));
+	tr = lj_ir_call(J, IRCALL_lj_strfmt_putfxint, tr, trsf, tra);
+	lj_needsplit(J);
+#else
+	recff_nyiu(J, rd);  /* Don't bother working around this NYI. */
+	return;
+#endif
+      }
+      break;
+    case STRFMT_UINT:
+      id = IRCALL_lj_strfmt_putfnum_uint;
+      goto handle_int;
+    case STRFMT_NUM:
+      id = IRCALL_lj_strfmt_putfnum;
+    handle_num:
+      tra = lj_ir_tonum(J, tra);
+      tr = lj_ir_call(J, id, tr, trsf, tra);
+      if (LJ_SOFTFP32) lj_needsplit(J);
+      break;
+    case STRFMT_STR:
+      if (!tref_isstr(tra)) {
+	recff_nyiu(J, rd);  /* NYI: __tostring and non-string types for %s. */
+	/* NYI: also buffers. */
+	return;
+      }
+      if (sf == STRFMT_STR)  /* Shortcut for plain %s. */
+	tr = emitir(IRTG(IR_BUFPUT, IRT_PGC), tr, tra);
+      else if ((sf & STRFMT_T_QUOTED))
+	tr = lj_ir_call(J, IRCALL_lj_strfmt_putquoted, tr, tra);
+      else
+	tr = lj_ir_call(J, IRCALL_lj_strfmt_putfstr, tr, trsf, tra);
+      break;
+    case STRFMT_CHAR:
+      tra = lj_opt_narrow_toint(J, tra);
+      if (sf == STRFMT_CHAR)  /* Shortcut for plain %c. */
+	tr = emitir(IRTG(IR_BUFPUT, IRT_PGC), tr,
+		    emitir(IRT(IR_TOSTR, IRT_STR), tra, IRTOSTR_CHAR));
+      else
+	tr = lj_ir_call(J, IRCALL_lj_strfmt_putfchar, tr, trsf, tra);
+      break;
+    case STRFMT_PTR:  /* NYI */
+    case STRFMT_ERR:
+    default:
+      recff_nyiu(J, rd);
+      return;
+    }
+  }
+  if (sbufx) {
+    emitir(IRT(IR_USE, IRT_NIL), tr, 0);
+  } else {
+    J->base[0] = emitir(IRTG(IR_BUFSTR, IRT_STR), tr, hdr);
+  }
+}
+
+static void LJ_FASTCALL recff_string_format(jit_State *J, RecordFFData *rd)
+{
+  recff_format(J, rd, recff_bufhdr(J), 0);
+}
+
+/* -- Buffer library fast functions --------------------------------------- */
+
+#if LJ_HASBUFFER
+
+static LJ_AINLINE TRef recff_sbufx_get_L(jit_State *J, TRef ud)
+{
+  return emitir(IRT(IR_FLOAD, IRT_PGC), ud, IRFL_SBUF_L);
+}
+
+static LJ_AINLINE void recff_sbufx_set_L(jit_State *J, TRef ud, TRef val)
+{
+  TRef fref = emitir(IRT(IR_FREF, IRT_PGC), ud, IRFL_SBUF_L);
+  emitir(IRT(IR_FSTORE, IRT_PGC), fref, val);
+}
+
+static LJ_AINLINE TRef recff_sbufx_get_ptr(jit_State *J, TRef ud, IRFieldID fl)
+{
+  return emitir(IRT(IR_FLOAD, IRT_PTR), ud, fl);
+}
+
+static LJ_AINLINE void recff_sbufx_set_ptr(jit_State *J, TRef ud, IRFieldID fl, TRef val)
+{
+  TRef fref = emitir(IRT(IR_FREF, IRT_PTR), ud, fl);
+  emitir(IRT(IR_FSTORE, IRT_PTR), fref, val);
+}
+
+static LJ_AINLINE TRef recff_sbufx_len(jit_State *J, TRef trr, TRef trw)
+{
+  TRef len = emitir(IRT(IR_SUB, IRT_INTP), trw, trr);
+  if (LJ_64)
+    len = emitir(IRTI(IR_CONV), len, (IRT_INT<<5)|IRT_INTP|IRCONV_NONE);
+  return len;
+}
+
+/* Emit typecheck for string buffer. */
+static TRef recff_sbufx_check(jit_State *J, RecordFFData *rd, ptrdiff_t arg)
+{
+  TRef trtype, ud = J->base[arg];
+  if (!tvisbuf(&rd->argv[arg])) lj_trace_err(J, LJ_TRERR_BADTYPE);
+  trtype = emitir(IRT(IR_FLOAD, IRT_U8), ud, IRFL_UDATA_UDTYPE);
+  emitir(IRTGI(IR_EQ), trtype, lj_ir_kint(J, UDTYPE_BUFFER));
+  J->needsnap = 1;
+  return ud;
+}
+
+/* Emit BUFHDR for write to extended string buffer. */
+static TRef recff_sbufx_write(jit_State *J, TRef ud)
+{
+  TRef trbuf = emitir(IRT(IR_ADD, IRT_PGC), ud, lj_ir_kint(J, sizeof(GCudata)));
+  return emitir(IRT(IR_BUFHDR, IRT_PGC), trbuf, IRBUFHDR_WRITE);
+}
+
+/* Check for integer in range for the buffer API. */
+static TRef recff_sbufx_checkint(jit_State *J, RecordFFData *rd, ptrdiff_t arg)
+{
+  TRef tr = J->base[arg];
+  TRef trlim = lj_ir_kint(J, LJ_MAX_BUF);
+  if (tref_isinteger(tr)) {
+    emitir(IRTGI(IR_ULE), tr, trlim);
+  } else if (tref_isnum(tr)) {
+    tr = emitir(IRTI(IR_CONV), tr, IRCONV_INT_NUM|IRCONV_ANY);
+    emitir(IRTGI(IR_ULE), tr, trlim);
+#if LJ_HASFFI
+  } else if (tref_iscdata(tr)) {
+    tr = lj_crecord_loadiu64(J, tr, &rd->argv[arg]);
+    emitir(IRTG(IR_ULE, IRT_U64), tr, lj_ir_kint64(J, LJ_MAX_BUF));
+    tr = emitir(IRTI(IR_CONV), tr, (IRT_INT<<5)|IRT_I64|IRCONV_NONE);
+#else
+    UNUSED(rd);
+#endif
+  } else {
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  }
+  return tr;
+}
+
+static void LJ_FASTCALL recff_buffer_method_reset(jit_State *J, RecordFFData *rd)
+{
+  TRef ud = recff_sbufx_check(J, rd, 0);
+  SBufExt *sbx = bufV(&rd->argv[0]);
+  int iscow = (int)sbufiscow(sbx);
+  TRef trl = recff_sbufx_get_L(J, ud);
+  TRef trcow = emitir(IRT(IR_BAND, IRT_IGC), trl, lj_ir_kint(J, SBUF_FLAG_COW));
+  TRef zero = lj_ir_kint(J, 0);
+  emitir(IRTG(iscow ? IR_NE : IR_EQ, IRT_IGC), trcow, zero);
+  if (iscow) {
+    trl = emitir(IRT(IR_BXOR, IRT_IGC), trl,
+		 LJ_GC64 ? lj_ir_kint64(J, SBUF_FLAG_COW) :
+			   lj_ir_kint(J, SBUF_FLAG_COW));
+    recff_sbufx_set_ptr(J, ud, IRFL_SBUF_W, zero);
+    recff_sbufx_set_ptr(J, ud, IRFL_SBUF_E, zero);
+    recff_sbufx_set_ptr(J, ud, IRFL_SBUF_B, zero);
+    recff_sbufx_set_L(J, ud, trl);
+    emitir(IRT(IR_FSTORE, IRT_PGC),
+	   emitir(IRT(IR_FREF, IRT_PGC), ud, IRFL_SBUF_REF), zero);
+    recff_sbufx_set_ptr(J, ud, IRFL_SBUF_R, zero);
+  } else {
+    TRef trb = recff_sbufx_get_ptr(J, ud, IRFL_SBUF_B);
+    recff_sbufx_set_ptr(J, ud, IRFL_SBUF_W, trb);
+    recff_sbufx_set_ptr(J, ud, IRFL_SBUF_R, trb);
+  }
+}
+
+static void LJ_FASTCALL recff_buffer_method_skip(jit_State *J, RecordFFData *rd)
+{
+  TRef ud = recff_sbufx_check(J, rd, 0);
+  TRef trr = recff_sbufx_get_ptr(J, ud, IRFL_SBUF_R);
+  TRef trw = recff_sbufx_get_ptr(J, ud, IRFL_SBUF_W);
+  TRef len = recff_sbufx_len(J, trr, trw);
+  TRef trn = recff_sbufx_checkint(J, rd, 1);
+  len = emitir(IRTI(IR_MIN), len, trn);
+  trr = emitir(IRT(IR_ADD, IRT_PTR), trr, len);
+  recff_sbufx_set_ptr(J, ud, IRFL_SBUF_R, trr);
+}
+
+static void LJ_FASTCALL recff_buffer_method_set(jit_State *J, RecordFFData *rd)
+{
+  TRef ud = recff_sbufx_check(J, rd, 0);
+  TRef trbuf = recff_sbufx_write(J, ud);
+  TRef tr = J->base[1];
+  if (tref_isstr(tr)) {
+    TRef trp = emitir(IRT(IR_STRREF, IRT_PGC), tr, lj_ir_kint(J, 0));
+    TRef len = emitir(IRTI(IR_FLOAD), tr, IRFL_STR_LEN);
+    lj_ir_call(J, IRCALL_lj_bufx_set, trbuf, trp, len, tr);
+#if LJ_HASFFI
+  } else if (tref_iscdata(tr)) {
+    TRef trp = lj_crecord_topcvoid(J, tr, &rd->argv[1]);
+    TRef len = recff_sbufx_checkint(J, rd, 2);
+    lj_ir_call(J, IRCALL_lj_bufx_set, trbuf, trp, len, tr);
+#endif
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_buffer_method_put(jit_State *J, RecordFFData *rd)
+{
+  TRef ud = recff_sbufx_check(J, rd, 0);
+  TRef trbuf = recff_sbufx_write(J, ud);
+  TRef tr;
+  ptrdiff_t arg;
+  if (!J->base[1]) return;
+  for (arg = 1; (tr = J->base[arg]); arg++) {
+    if (tref_isudata(tr)) {
+      TRef ud2 = recff_sbufx_check(J, rd, arg);
+      emitir(IRTG(IR_NE, IRT_PGC), ud, ud2);
+    }
+  }
+  for (arg = 1; (tr = J->base[arg]); arg++) {
+    if (tref_isstr(tr)) {
+      trbuf = emitir(IRTG(IR_BUFPUT, IRT_PGC), trbuf, tr);
+    } else if (tref_isnumber(tr)) {
+      trbuf = emitir(IRTG(IR_BUFPUT, IRT_PGC), trbuf,
+		     emitir(IRT(IR_TOSTR, IRT_STR), tr,
+			    tref_isnum(tr) ? IRTOSTR_NUM : IRTOSTR_INT));
+    } else if (tref_isudata(tr)) {
+      TRef trr = recff_sbufx_get_ptr(J, tr, IRFL_SBUF_R);
+      TRef trw = recff_sbufx_get_ptr(J, tr, IRFL_SBUF_W);
+      TRef len = recff_sbufx_len(J, trr, trw);
+      trbuf = lj_ir_call(J, IRCALL_lj_buf_putmem, trbuf, trr, len);
+    } else {
+      recff_nyiu(J, rd);
+    }
+  }
+  emitir(IRT(IR_USE, IRT_NIL), trbuf, 0);
+}
+
+static void LJ_FASTCALL recff_buffer_method_putf(jit_State *J, RecordFFData *rd)
+{
+  TRef ud = recff_sbufx_check(J, rd, 0);
+  TRef trbuf = recff_sbufx_write(J, ud);
+  recff_format(J, rd, trbuf, 1);
+}
+
+static void LJ_FASTCALL recff_buffer_method_get(jit_State *J, RecordFFData *rd)
+{
+  TRef ud = recff_sbufx_check(J, rd, 0);
+  TRef trr = recff_sbufx_get_ptr(J, ud, IRFL_SBUF_R);
+  TRef trw = recff_sbufx_get_ptr(J, ud, IRFL_SBUF_W);
+  TRef tr;
+  ptrdiff_t arg;
+  if (!J->base[1]) { J->base[1] = TREF_NIL; J->base[2] = 0; }
+  for (arg = 0; (tr = J->base[arg+1]); arg++) {
+    if (!tref_isnil(tr)) {
+      J->base[arg+1] = recff_sbufx_checkint(J, rd, arg+1);
+    }
+  }
+  for (arg = 0; (tr = J->base[arg+1]); arg++) {
+    TRef len = recff_sbufx_len(J, trr, trw);
+    if (tref_isnil(tr)) {
+      J->base[arg] = emitir(IRT(IR_XSNEW, IRT_STR), trr, len);
+      trr = trw;
+    } else {
+      TRef tru;
+      len = emitir(IRTI(IR_MIN), len, tr);
+      tru = emitir(IRT(IR_ADD, IRT_PTR), trr, len);
+      J->base[arg] = emitir(IRT(IR_XSNEW, IRT_STR), trr, len);
+      trr = tru;  /* Doing the ADD before the SNEW generates better code. */
+    }
+    recff_sbufx_set_ptr(J, ud, IRFL_SBUF_R, trr);
+  }
+  rd->nres = arg;
+}
+
+static void LJ_FASTCALL recff_buffer_method___tostring(jit_State *J, RecordFFData *rd)
+{
+  TRef ud = recff_sbufx_check(J, rd, 0);
+  TRef trr = recff_sbufx_get_ptr(J, ud, IRFL_SBUF_R);
+  TRef trw = recff_sbufx_get_ptr(J, ud, IRFL_SBUF_W);
+  J->base[0] = emitir(IRT(IR_XSNEW, IRT_STR), trr, recff_sbufx_len(J, trr, trw));
+}
+
+static void LJ_FASTCALL recff_buffer_method___len(jit_State *J, RecordFFData *rd)
+{
+  TRef ud = recff_sbufx_check(J, rd, 0);
+  TRef trr = recff_sbufx_get_ptr(J, ud, IRFL_SBUF_R);
+  TRef trw = recff_sbufx_get_ptr(J, ud, IRFL_SBUF_W);
+  J->base[0] = recff_sbufx_len(J, trr, trw);
+}
+
+#if LJ_HASFFI
+static void LJ_FASTCALL recff_buffer_method_putcdata(jit_State *J, RecordFFData *rd)
+{
+  TRef ud = recff_sbufx_check(J, rd, 0);
+  TRef trbuf = recff_sbufx_write(J, ud);
+  TRef tr = lj_crecord_topcvoid(J, J->base[1], &rd->argv[1]);
+  TRef len = recff_sbufx_checkint(J, rd, 2);
+  trbuf = lj_ir_call(J, IRCALL_lj_buf_putmem, trbuf, tr, len);
+  emitir(IRT(IR_USE, IRT_NIL), trbuf, 0);
+}
+
+static void LJ_FASTCALL recff_buffer_method_reserve(jit_State *J, RecordFFData *rd)
+{
+  TRef ud = recff_sbufx_check(J, rd, 0);
+  TRef trbuf = recff_sbufx_write(J, ud);
+  TRef trsz = recff_sbufx_checkint(J, rd, 1);
+  J->base[1] = lj_ir_call(J, IRCALL_lj_bufx_more, trbuf, trsz);
+  J->base[0] = lj_crecord_topuint8(J, recff_sbufx_get_ptr(J, ud, IRFL_SBUF_W));
+  rd->nres = 2;
+}
+
+static void LJ_FASTCALL recff_buffer_method_commit(jit_State *J, RecordFFData *rd)
+{
+  TRef ud = recff_sbufx_check(J, rd, 0);
+  TRef len = recff_sbufx_checkint(J, rd, 1);
+  TRef trw = recff_sbufx_get_ptr(J, ud, IRFL_SBUF_W);
+  TRef tre = recff_sbufx_get_ptr(J, ud, IRFL_SBUF_E);
+  TRef left = emitir(IRT(IR_SUB, IRT_INTP), tre, trw);
+  if (LJ_64)
+    left = emitir(IRTI(IR_CONV), left, (IRT_INT<<5)|IRT_INTP|IRCONV_NONE);
+  emitir(IRTGI(IR_ULE), len, left);
+  trw = emitir(IRT(IR_ADD, IRT_PTR), trw, len);
+  recff_sbufx_set_ptr(J, ud, IRFL_SBUF_W, trw);
+}
+
+static void LJ_FASTCALL recff_buffer_method_ref(jit_State *J, RecordFFData *rd)
+{
+  TRef ud = recff_sbufx_check(J, rd, 0);
+  TRef trr = recff_sbufx_get_ptr(J, ud, IRFL_SBUF_R);
+  TRef trw = recff_sbufx_get_ptr(J, ud, IRFL_SBUF_W);
+  J->base[0] = lj_crecord_topuint8(J, trr);
+  J->base[1] = recff_sbufx_len(J, trr, trw);
+  rd->nres = 2;
+}
+#endif
+
+static void LJ_FASTCALL recff_buffer_method_encode(jit_State *J, RecordFFData *rd)
+{
+  TRef ud = recff_sbufx_check(J, rd, 0);
+  TRef trbuf = recff_sbufx_write(J, ud);
+  TRef tmp = recff_tmpref(J, J->base[1], IRTMPREF_IN1);
+  lj_ir_call(J, IRCALL_lj_serialize_put, trbuf, tmp);
+  /* No IR_USE needed, since the call is a store. */
+}
+
+static void LJ_FASTCALL recff_buffer_method_decode(jit_State *J, RecordFFData *rd)
+{
+  TRef ud = recff_sbufx_check(J, rd, 0);
+  TRef trbuf = recff_sbufx_write(J, ud);
+  TRef tmp = recff_tmpref(J, TREF_NIL, IRTMPREF_OUT1);
+  TRef trr = lj_ir_call(J, IRCALL_lj_serialize_get, trbuf, tmp);
+  IRType t = (IRType)lj_serialize_peektype(bufV(&rd->argv[0]));
+  /* No IR_USE needed, since the call is a store. */
+  J->base[0] = lj_record_vload(J, tmp, 0, t);
+  /* The sbx->r store must be after the VLOAD type check, in case it fails. */
+  recff_sbufx_set_ptr(J, ud, IRFL_SBUF_R, trr);
+}
+
+static void LJ_FASTCALL recff_buffer_encode(jit_State *J, RecordFFData *rd)
+{
+  TRef tmp = recff_tmpref(J, J->base[0], IRTMPREF_IN1);
+  J->base[0] = lj_ir_call(J, IRCALL_lj_serialize_encode, tmp);
+  /* IR_USE needed for IR_CALLA, because the encoder may throw non-OOM. */
+  emitir(IRT(IR_USE, IRT_NIL), J->base[0], 0);
+  UNUSED(rd);
+}
+
+static void LJ_FASTCALL recff_buffer_decode(jit_State *J, RecordFFData *rd)
+{
+  if (tvisstr(&rd->argv[0])) {
+    GCstr *str = strV(&rd->argv[0]);
+    SBufExt sbx;
+    IRType t;
+    TRef tmp = recff_tmpref(J, TREF_NIL, IRTMPREF_OUT1);
+    TRef tr = lj_ir_call(J, IRCALL_lj_serialize_decode, tmp, J->base[0]);
+    /* IR_USE needed for IR_CALLA, because the decoder may throw non-OOM.
+    ** That's why IRCALL_lj_serialize_decode needs a fake INT result.
+    */
+    emitir(IRT(IR_USE, IRT_NIL), tr, 0);
+    memset(&sbx, 0, sizeof(SBufExt));
+    lj_bufx_set_cow(J->L, &sbx, strdata(str), str->len);
+    t = (IRType)lj_serialize_peektype(&sbx);
+    J->base[0] = lj_record_vload(J, tmp, 0, t);
+  }  /* else: Interpreter will throw. */
+}
+
+#endif
+
+/* -- Table library fast functions ---------------------------------------- */
+
+static void LJ_FASTCALL recff_table_insert(jit_State *J, RecordFFData *rd)
+{
+  RecordIndex ix;
+  ix.tab = J->base[0];
+  ix.val = J->base[1];
+  rd->nres = 0;
+  if (tref_istab(ix.tab) && ix.val) {
+    if (!J->base[2]) {  /* Simple push: t[#t+1] = v */
+      TRef trlen = emitir(IRTI(IR_ALEN), ix.tab, TREF_NIL);
+      GCtab *t = tabV(&rd->argv[0]);
+      ix.key = emitir(IRTI(IR_ADD), trlen, lj_ir_kint(J, 1));
+      settabV(J->L, &ix.tabv, t);
+      setintV(&ix.keyv, lj_tab_len(t) + 1);
+      ix.idxchain = 0;
+      lj_record_idx(J, &ix);  /* Set new value. */
+    } else {  /* Complex case: insert in the middle. */
+      recff_nyiu(J, rd);
+      return;
+    }
+  }  /* else: Interpreter will throw. */
+}
+
+static void LJ_FASTCALL recff_table_concat(jit_State *J, RecordFFData *rd)
+{
+  TRef tab = J->base[0];
+  if (tref_istab(tab)) {
+    TRef sep = !tref_isnil(J->base[1]) ?
+	       lj_ir_tostr(J, J->base[1]) : lj_ir_knull(J, IRT_STR);
+    TRef tri = (J->base[1] && !tref_isnil(J->base[2])) ?
+	       lj_opt_narrow_toint(J, J->base[2]) : lj_ir_kint(J, 1);
+    TRef tre = (J->base[1] && J->base[2] && !tref_isnil(J->base[3])) ?
+	       lj_opt_narrow_toint(J, J->base[3]) :
+	       emitir(IRTI(IR_ALEN), tab, TREF_NIL);
+    TRef hdr = recff_bufhdr(J);
+    TRef tr = lj_ir_call(J, IRCALL_lj_buf_puttab, hdr, tab, sep, tri, tre);
+    emitir(IRTG(IR_NE, IRT_PTR), tr, lj_ir_kptr(J, NULL));
+    J->base[0] = emitir(IRTG(IR_BUFSTR, IRT_STR), tr, hdr);
+  }  /* else: Interpreter will throw. */
+  UNUSED(rd);
+}
+
+static void LJ_FASTCALL recff_table_new(jit_State *J, RecordFFData *rd)
+{
+  TRef tra = lj_opt_narrow_toint(J, J->base[0]);
+  TRef trh = lj_opt_narrow_toint(J, J->base[1]);
+  J->base[0] = lj_ir_call(J, IRCALL_lj_tab_new_ah, tra, trh);
+  UNUSED(rd);
+}
+
+static void LJ_FASTCALL recff_table_clear(jit_State *J, RecordFFData *rd)
+{
+  TRef tr = J->base[0];
+  if (tref_istab(tr)) {
+    rd->nres = 0;
+    lj_ir_call(J, IRCALL_lj_tab_clear, tr);
+    J->needsnap = 1;
+  }  /* else: Interpreter will throw. */
+}
+
+/* -- I/O library fast functions ------------------------------------------ */
+
+/* Get FILE* for I/O function. Any I/O error aborts recording, so there's
+** no need to encode the alternate cases for any of the guards.
+*/
+static TRef recff_io_fp(jit_State *J, TRef *udp, int32_t id)
+{
+  TRef tr, ud, fp;
+  if (id) {  /* io.func() */
+    ud = lj_ir_ggfload(J, IRT_UDATA, GG_OFS(g.gcroot[id]));
+  } else {  /* fp:method() */
+    ud = J->base[0];
+    if (!tref_isudata(ud))
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+    tr = emitir(IRT(IR_FLOAD, IRT_U8), ud, IRFL_UDATA_UDTYPE);
+    emitir(IRTGI(IR_EQ), tr, lj_ir_kint(J, UDTYPE_IO_FILE));
+  }
+  *udp = ud;
+  fp = emitir(IRT(IR_FLOAD, IRT_PTR), ud, IRFL_UDATA_FILE);
+  emitir(IRTG(IR_NE, IRT_PTR), fp, lj_ir_knull(J, IRT_PTR));
+  return fp;
+}
+
+static void LJ_FASTCALL recff_io_write(jit_State *J, RecordFFData *rd)
+{
+  TRef ud, fp = recff_io_fp(J, &ud, rd->data);
+  TRef zero = lj_ir_kint(J, 0);
+  TRef one = lj_ir_kint(J, 1);
+  ptrdiff_t i = rd->data == 0 ? 1 : 0;
+  for (; J->base[i]; i++) {
+    TRef str = lj_ir_tostr(J, J->base[i]);
+    TRef buf = emitir(IRT(IR_STRREF, IRT_PGC), str, zero);
+    TRef len = emitir(IRTI(IR_FLOAD), str, IRFL_STR_LEN);
+    if (tref_isk(len) && IR(tref_ref(len))->i == 1) {
+      IRIns *irs = IR(tref_ref(str));
+      TRef tr = (irs->o == IR_TOSTR && irs->op2 == IRTOSTR_CHAR) ?
+		irs->op1 :
+		emitir(IRT(IR_XLOAD, IRT_U8), buf, IRXLOAD_READONLY);
+      tr = lj_ir_call(J, IRCALL_fputc, tr, fp);
+      if (results_wanted(J) != 0)  /* Check result only if not ignored. */
+	emitir(IRTGI(IR_NE), tr, lj_ir_kint(J, -1));
+    } else {
+      TRef tr = lj_ir_call(J, IRCALL_fwrite, buf, one, len, fp);
+      if (results_wanted(J) != 0)  /* Check result only if not ignored. */
+	emitir(IRTGI(IR_EQ), tr, len);
+    }
+  }
+  J->base[0] = LJ_52 ? ud : TREF_TRUE;
+}
+
+static void LJ_FASTCALL recff_io_flush(jit_State *J, RecordFFData *rd)
+{
+  TRef ud, fp = recff_io_fp(J, &ud, rd->data);
+  TRef tr = lj_ir_call(J, IRCALL_fflush, fp);
+  if (results_wanted(J) != 0)  /* Check result only if not ignored. */
+    emitir(IRTGI(IR_EQ), tr, lj_ir_kint(J, 0));
+  J->base[0] = TREF_TRUE;
+}
+
+/* -- Debug library fast functions ---------------------------------------- */
+
+static void LJ_FASTCALL recff_debug_getmetatable(jit_State *J, RecordFFData *rd)
+{
+  GCtab *mt;
+  TRef mtref;
+  TRef tr = J->base[0];
+  if (tref_istab(tr)) {
+    mt = tabref(tabV(&rd->argv[0])->metatable);
+    mtref = emitir(IRT(IR_FLOAD, IRT_TAB), tr, IRFL_TAB_META);
+  } else if (tref_isudata(tr)) {
+    mt = tabref(udataV(&rd->argv[0])->metatable);
+    mtref = emitir(IRT(IR_FLOAD, IRT_TAB), tr, IRFL_UDATA_META);
+  } else {
+    mt = tabref(basemt_obj(J2G(J), &rd->argv[0]));
+    J->base[0] = mt ? lj_ir_ktab(J, mt) : TREF_NIL;
+    return;
+  }
+  emitir(IRTG(mt ? IR_NE : IR_EQ, IRT_TAB), mtref, lj_ir_knull(J, IRT_TAB));
+  J->base[0] = mt ? mtref : TREF_NIL;
+}
+
+/* -- Record calls to fast functions -------------------------------------- */
+
+#include "lj_recdef.h"
+
+static uint32_t recdef_lookup(GCfunc *fn)
+{
+  if (fn->c.ffid < sizeof(recff_idmap)/sizeof(recff_idmap[0]))
+    return recff_idmap[fn->c.ffid];
+  else
+    return 0;
+}
+
+/* Record entry to a fast function or C function. */
+void lj_ffrecord_func(jit_State *J)
+{
+  RecordFFData rd;
+  uint32_t m = recdef_lookup(J->fn);
+  rd.data = m & 0xff;
+  rd.nres = 1;  /* Default is one result. */
+  rd.argv = J->L->base;
+  J->base[J->maxslot] = 0;  /* Mark end of arguments. */
+  (recff_func[m >> 8])(J, &rd);  /* Call recff_* handler. */
+  if (rd.nres >= 0) {
+    if (J->postproc == LJ_POST_NONE) J->postproc = LJ_POST_FFRETRY;
+    lj_record_ret(J, 0, rd.nres);
+  }
+}
+
+#undef IR
+#undef emitir
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_ffrecord.h b/libs/luajit-cmake/luajit/src/lj_ffrecord.h
new file mode 100644
index 0000000..0acb8ed
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_ffrecord.h
@@ -0,0 +1,24 @@
+/*
+** Fast function call recorder.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_FFRECORD_H
+#define _LJ_FFRECORD_H
+
+#include "lj_obj.h"
+#include "lj_jit.h"
+
+#if LJ_HASJIT
+/* Data used by handlers to record a fast function. */
+typedef struct RecordFFData {
+  TValue *argv;		/* Runtime argument values. */
+  ptrdiff_t nres;	/* Number of returned results (defaults to 1). */
+  uint32_t data;	/* Per-ffid auxiliary data (opcode, literal etc.). */
+} RecordFFData;
+
+LJ_FUNC int32_t lj_ffrecord_select_mode(jit_State *J, TRef tr, TValue *tv);
+LJ_FUNC void lj_ffrecord_func(jit_State *J);
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_frame.h b/libs/luajit-cmake/luajit/src/lj_frame.h
new file mode 100644
index 0000000..aa1dc11
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_frame.h
@@ -0,0 +1,297 @@
+/*
+** Stack frames.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_FRAME_H
+#define _LJ_FRAME_H
+
+#include "lj_obj.h"
+#include "lj_bc.h"
+
+/* -- Lua stack frame ----------------------------------------------------- */
+
+/* Frame type markers in LSB of PC (4-byte aligned) or delta (8-byte aligned:
+**
+**    PC  00  Lua frame
+** delta 001  C frame
+** delta 010  Continuation frame
+** delta 011  Lua vararg frame
+** delta 101  cpcall() frame
+** delta 110  ff pcall() frame
+** delta 111  ff pcall() frame with active hook
+*/
+enum {
+  FRAME_LUA, FRAME_C, FRAME_CONT, FRAME_VARG,
+  FRAME_LUAP, FRAME_CP, FRAME_PCALL, FRAME_PCALLH
+};
+#define FRAME_TYPE		3
+#define FRAME_P			4
+#define FRAME_TYPEP		(FRAME_TYPE|FRAME_P)
+
+/* Macros to access and modify Lua frames. */
+#if LJ_FR2
+/* Two-slot frame info, required for 64 bit PC/GCRef:
+**
+**                   base-2  base-1      |  base  base+1 ...
+**                  [func   PC/delta/ft] | [slots ...]
+**                  ^-- frame            | ^-- base   ^-- top
+**
+** Continuation frames:
+**
+**   base-4  base-3  base-2  base-1      |  base  base+1 ...
+**  [cont      PC ] [func   PC/delta/ft] | [slots ...]
+**                  ^-- frame            | ^-- base   ^-- top
+*/
+#define frame_gc(f)		(gcval((f)-1))
+#define frame_ftsz(f)		((ptrdiff_t)(f)->ftsz)
+#define frame_pc(f)		((const BCIns *)frame_ftsz(f))
+#define setframe_gc(f, p, tp)	(setgcVraw((f), (p), (tp)))
+#define setframe_ftsz(f, sz)	((f)->ftsz = (sz))
+#define setframe_pc(f, pc)	((f)->ftsz = (int64_t)(intptr_t)(pc))
+#else
+/* One-slot frame info, sufficient for 32 bit PC/GCRef:
+**
+**              base-1              |  base  base+1 ...
+**              lo     hi           |
+**             [func | PC/delta/ft] | [slots ...]
+**             ^-- frame            | ^-- base   ^-- top
+**
+** Continuation frames:
+**
+**  base-2      base-1              |  base  base+1 ...
+**  lo     hi   lo     hi           |
+** [cont | PC] [func | PC/delta/ft] | [slots ...]
+**             ^-- frame            | ^-- base   ^-- top
+*/
+#define frame_gc(f)		(gcref((f)->fr.func))
+#define frame_ftsz(f)		((ptrdiff_t)(f)->fr.tp.ftsz)
+#define frame_pc(f)		(mref((f)->fr.tp.pcr, const BCIns))
+#define setframe_gc(f, p, tp)	(setgcref((f)->fr.func, (p)), UNUSED(tp))
+#define setframe_ftsz(f, sz)	((f)->fr.tp.ftsz = (int32_t)(sz))
+#define setframe_pc(f, pc)	(setmref((f)->fr.tp.pcr, (pc)))
+#endif
+
+#define frame_type(f)		(frame_ftsz(f) & FRAME_TYPE)
+#define frame_typep(f)		(frame_ftsz(f) & FRAME_TYPEP)
+#define frame_islua(f)		(frame_type(f) == FRAME_LUA)
+#define frame_isc(f)		(frame_type(f) == FRAME_C)
+#define frame_iscont(f)		(frame_typep(f) == FRAME_CONT)
+#define frame_isvarg(f)		(frame_typep(f) == FRAME_VARG)
+#define frame_ispcall(f)	((frame_ftsz(f) & 6) == FRAME_PCALL)
+
+#define frame_func(f)		(&frame_gc(f)->fn)
+#define frame_delta(f)		(frame_ftsz(f) >> 3)
+#define frame_sized(f)		(frame_ftsz(f) & ~FRAME_TYPEP)
+
+enum { LJ_CONT_TAILCALL, LJ_CONT_FFI_CALLBACK };  /* Special continuations. */
+
+#if LJ_FR2
+#define frame_contpc(f)		(frame_pc((f)-2))
+#define frame_contv(f)		(((f)-3)->u64)
+#else
+#define frame_contpc(f)		(frame_pc((f)-1))
+#define frame_contv(f)		(((f)-1)->u32.lo)
+#endif
+#if LJ_FR2
+#define frame_contf(f)		((ASMFunction)(uintptr_t)((f)-3)->u64)
+#elif LJ_64
+#define frame_contf(f) \
+  ((ASMFunction)(void *)((intptr_t)lj_vm_asm_begin + \
+			 (intptr_t)(int32_t)((f)-1)->u32.lo))
+#else
+#define frame_contf(f)		((ASMFunction)gcrefp(((f)-1)->gcr, void))
+#endif
+#define frame_iscont_fficb(f) \
+  (LJ_HASFFI && frame_contv(f) == LJ_CONT_FFI_CALLBACK)
+
+#define frame_prevl(f)		((f) - (1+LJ_FR2+bc_a(frame_pc(f)[-1])))
+#define frame_prevd(f)		((TValue *)((char *)(f) - frame_sized(f)))
+#define frame_prev(f)		(frame_islua(f)?frame_prevl(f):frame_prevd(f))
+/* Note: this macro does not skip over FRAME_VARG. */
+
+/* -- C stack frame ------------------------------------------------------- */
+
+/* Macros to access and modify the C stack frame chain. */
+
+/* These definitions must match with the arch-specific *.dasc files. */
+#if LJ_TARGET_X86
+#if LJ_ABI_WIN
+#define CFRAME_OFS_ERRF		(19*4)
+#define CFRAME_OFS_NRES		(18*4)
+#define CFRAME_OFS_PREV		(17*4)
+#define CFRAME_OFS_L		(16*4)
+#define CFRAME_OFS_SEH		(9*4)
+#define CFRAME_OFS_PC		(6*4)
+#define CFRAME_OFS_MULTRES	(5*4)
+#define CFRAME_SIZE		(16*4)
+#define CFRAME_SHIFT_MULTRES	0
+#else
+#define CFRAME_OFS_ERRF		(15*4)
+#define CFRAME_OFS_NRES		(14*4)
+#define CFRAME_OFS_PREV		(13*4)
+#define CFRAME_OFS_L		(12*4)
+#define CFRAME_OFS_PC		(6*4)
+#define CFRAME_OFS_MULTRES	(5*4)
+#define CFRAME_SIZE		(12*4)
+#define CFRAME_SHIFT_MULTRES	0
+#endif
+#elif LJ_TARGET_X64
+#if LJ_ABI_WIN
+#define CFRAME_OFS_PREV		(13*8)
+#if LJ_GC64
+#define CFRAME_OFS_PC		(12*8)
+#define CFRAME_OFS_L		(11*8)
+#define CFRAME_OFS_ERRF		(21*4)
+#define CFRAME_OFS_NRES		(20*4)
+#define CFRAME_OFS_MULTRES	(8*4)
+#else
+#define CFRAME_OFS_PC		(25*4)
+#define CFRAME_OFS_L		(24*4)
+#define CFRAME_OFS_ERRF		(23*4)
+#define CFRAME_OFS_NRES		(22*4)
+#define CFRAME_OFS_MULTRES	(21*4)
+#endif
+#define CFRAME_SIZE		(10*8)
+#define CFRAME_SIZE_JIT		(CFRAME_SIZE + 9*16 + 4*8)
+#define CFRAME_SHIFT_MULTRES	0
+#else
+#define CFRAME_OFS_PREV		(4*8)
+#if LJ_GC64
+#define CFRAME_OFS_PC		(3*8)
+#define CFRAME_OFS_L		(2*8)
+#define CFRAME_OFS_ERRF		(3*4)
+#define CFRAME_OFS_NRES		(2*4)
+#define CFRAME_OFS_MULTRES	(0*4)
+#else
+#define CFRAME_OFS_PC		(7*4)
+#define CFRAME_OFS_L		(6*4)
+#define CFRAME_OFS_ERRF		(5*4)
+#define CFRAME_OFS_NRES		(4*4)
+#define CFRAME_OFS_MULTRES	(1*4)
+#endif
+#if LJ_NO_UNWIND
+#define CFRAME_SIZE		(12*8)
+#else
+#define CFRAME_SIZE		(10*8)
+#endif
+#define CFRAME_SIZE_JIT		(CFRAME_SIZE + 16)
+#define CFRAME_SHIFT_MULTRES	0
+#endif
+#elif LJ_TARGET_ARM
+#define CFRAME_OFS_ERRF		24
+#define CFRAME_OFS_NRES		20
+#define CFRAME_OFS_PREV		16
+#define CFRAME_OFS_L		12
+#define CFRAME_OFS_PC		8
+#define CFRAME_OFS_MULTRES	4
+#if LJ_ARCH_HASFPU
+#define CFRAME_SIZE		128
+#else
+#define CFRAME_SIZE		64
+#endif
+#define CFRAME_SHIFT_MULTRES	3
+#elif LJ_TARGET_ARM64
+#define CFRAME_OFS_ERRF		36
+#define CFRAME_OFS_NRES		40
+#define CFRAME_OFS_PREV		0
+#define CFRAME_OFS_L		16
+#define CFRAME_OFS_PC		8
+#define CFRAME_OFS_MULTRES	32
+#define CFRAME_SIZE		208
+#define CFRAME_SHIFT_MULTRES	3
+#elif LJ_TARGET_PPC
+#if LJ_TARGET_XBOX360
+#define CFRAME_OFS_ERRF		424
+#define CFRAME_OFS_NRES		420
+#define CFRAME_OFS_PREV		400
+#define CFRAME_OFS_L		416
+#define CFRAME_OFS_PC		412
+#define CFRAME_OFS_MULTRES	408
+#define CFRAME_SIZE		384
+#define CFRAME_SHIFT_MULTRES	3
+#elif LJ_ARCH_PPC32ON64
+#define CFRAME_OFS_ERRF		472
+#define CFRAME_OFS_NRES		468
+#define CFRAME_OFS_PREV		448
+#define CFRAME_OFS_L		464
+#define CFRAME_OFS_PC		460
+#define CFRAME_OFS_MULTRES	456
+#define CFRAME_SIZE		400
+#define CFRAME_SHIFT_MULTRES	3
+#else
+#define CFRAME_OFS_ERRF		48
+#define CFRAME_OFS_NRES		44
+#define CFRAME_OFS_PREV		40
+#define CFRAME_OFS_L		36
+#define CFRAME_OFS_PC		32
+#define CFRAME_OFS_MULTRES	28
+#define CFRAME_SIZE		(LJ_ARCH_HASFPU ? 272 : 128)
+#define CFRAME_SHIFT_MULTRES	3
+#endif
+#elif LJ_TARGET_MIPS32
+#if LJ_ARCH_HASFPU
+#define CFRAME_OFS_ERRF		124
+#define CFRAME_OFS_NRES		120
+#define CFRAME_OFS_PREV		116
+#define CFRAME_OFS_L		112
+#define CFRAME_SIZE		112
+#else
+#define CFRAME_OFS_ERRF		76
+#define CFRAME_OFS_NRES		72
+#define CFRAME_OFS_PREV		68
+#define CFRAME_OFS_L		64
+#define CFRAME_SIZE		64
+#endif
+#define CFRAME_OFS_PC		20
+#define CFRAME_OFS_MULTRES	16
+#define CFRAME_SHIFT_MULTRES	3
+#elif LJ_TARGET_MIPS64
+#if LJ_ARCH_HASFPU
+#define CFRAME_OFS_ERRF		188
+#define CFRAME_OFS_NRES		184
+#define CFRAME_OFS_PREV		176
+#define CFRAME_OFS_L		168
+#define CFRAME_OFS_PC		160
+#define CFRAME_SIZE		192
+#else
+#define CFRAME_OFS_ERRF		124
+#define CFRAME_OFS_NRES		120
+#define CFRAME_OFS_PREV		112
+#define CFRAME_OFS_L		104
+#define CFRAME_OFS_PC		96
+#define CFRAME_SIZE		128
+#endif
+#define CFRAME_OFS_MULTRES	0
+#define CFRAME_SHIFT_MULTRES	3
+#else
+#error "Missing CFRAME_* definitions for this architecture"
+#endif
+
+#ifndef CFRAME_SIZE_JIT
+#define CFRAME_SIZE_JIT		CFRAME_SIZE
+#endif
+
+#define CFRAME_RESUME		1
+#define CFRAME_UNWIND_FF	2  /* Only used in unwinder. */
+#define CFRAME_RAWMASK		(~(intptr_t)(CFRAME_RESUME|CFRAME_UNWIND_FF))
+
+#define cframe_errfunc(cf)	(*(int32_t *)(((char *)(cf))+CFRAME_OFS_ERRF))
+#define cframe_nres(cf)		(*(int32_t *)(((char *)(cf))+CFRAME_OFS_NRES))
+#define cframe_prev(cf)		(*(void **)(((char *)(cf))+CFRAME_OFS_PREV))
+#define cframe_multres(cf)  (*(uint32_t *)(((char *)(cf))+CFRAME_OFS_MULTRES))
+#define cframe_multres_n(cf)	(cframe_multres((cf)) >> CFRAME_SHIFT_MULTRES)
+#define cframe_L(cf) \
+  (&gcref(*(GCRef *)(((char *)(cf))+CFRAME_OFS_L))->th)
+#define cframe_pc(cf) \
+  (mref(*(MRef *)(((char *)(cf))+CFRAME_OFS_PC), const BCIns))
+#define setcframe_L(cf, L) \
+  (setmref(*(MRef *)(((char *)(cf))+CFRAME_OFS_L), (L)))
+#define setcframe_pc(cf, pc) \
+  (setmref(*(MRef *)(((char *)(cf))+CFRAME_OFS_PC), (pc)))
+#define cframe_canyield(cf)	((intptr_t)(cf) & CFRAME_RESUME)
+#define cframe_unwind_ff(cf)	((intptr_t)(cf) & CFRAME_UNWIND_FF)
+#define cframe_raw(cf)		((void *)((intptr_t)(cf) & CFRAME_RAWMASK))
+#define cframe_Lpc(L)		cframe_pc(cframe_raw(L->cframe))
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_func.c b/libs/luajit-cmake/luajit/src/lj_func.c
new file mode 100644
index 0000000..9795a77
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_func.c
@@ -0,0 +1,191 @@
+/*
+** Function handling (prototypes, functions and upvalues).
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_func_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_func.h"
+#include "lj_trace.h"
+#include "lj_vm.h"
+
+/* -- Prototypes ---------------------------------------------------------- */
+
+void LJ_FASTCALL lj_func_freeproto(global_State *g, GCproto *pt)
+{
+  lj_mem_free(g, pt, pt->sizept);
+}
+
+/* -- Upvalues ------------------------------------------------------------ */
+
+static void unlinkuv(global_State *g, GCupval *uv)
+{
+  UNUSED(g);
+  lj_assertG(uvprev(uvnext(uv)) == uv && uvnext(uvprev(uv)) == uv,
+	     "broken upvalue chain");
+  setgcrefr(uvnext(uv)->prev, uv->prev);
+  setgcrefr(uvprev(uv)->next, uv->next);
+}
+
+/* Find existing open upvalue for a stack slot or create a new one. */
+static GCupval *func_finduv(lua_State *L, TValue *slot)
+{
+  global_State *g = G(L);
+  GCRef *pp = &L->openupval;
+  GCupval *p;
+  GCupval *uv;
+  /* Search the sorted list of open upvalues. */
+  while (gcref(*pp) != NULL && uvval((p = gco2uv(gcref(*pp)))) >= slot) {
+    lj_assertG(!p->closed && uvval(p) != &p->tv, "closed upvalue in chain");
+    if (uvval(p) == slot) {  /* Found open upvalue pointing to same slot? */
+      if (isdead(g, obj2gco(p)))  /* Resurrect it, if it's dead. */
+	flipwhite(obj2gco(p));
+      return p;
+    }
+    pp = &p->nextgc;
+  }
+  /* No matching upvalue found. Create a new one. */
+  uv = lj_mem_newt(L, sizeof(GCupval), GCupval);
+  newwhite(g, uv);
+  uv->gct = ~LJ_TUPVAL;
+  uv->closed = 0;  /* Still open. */
+  setmref(uv->v, slot);  /* Pointing to the stack slot. */
+  /* NOBARRIER: The GCupval is new (marked white) and open. */
+  setgcrefr(uv->nextgc, *pp);  /* Insert into sorted list of open upvalues. */
+  setgcref(*pp, obj2gco(uv));
+  setgcref(uv->prev, obj2gco(&g->uvhead));  /* Insert into GC list, too. */
+  setgcrefr(uv->next, g->uvhead.next);
+  setgcref(uvnext(uv)->prev, obj2gco(uv));
+  setgcref(g->uvhead.next, obj2gco(uv));
+  lj_assertG(uvprev(uvnext(uv)) == uv && uvnext(uvprev(uv)) == uv,
+	     "broken upvalue chain");
+  return uv;
+}
+
+/* Create an empty and closed upvalue. */
+static GCupval *func_emptyuv(lua_State *L)
+{
+  GCupval *uv = (GCupval *)lj_mem_newgco(L, sizeof(GCupval));
+  uv->gct = ~LJ_TUPVAL;
+  uv->closed = 1;
+  setnilV(&uv->tv);
+  setmref(uv->v, &uv->tv);
+  return uv;
+}
+
+/* Close all open upvalues pointing to some stack level or above. */
+void LJ_FASTCALL lj_func_closeuv(lua_State *L, TValue *level)
+{
+  GCupval *uv;
+  global_State *g = G(L);
+  while (gcref(L->openupval) != NULL &&
+	 uvval((uv = gco2uv(gcref(L->openupval)))) >= level) {
+    GCobj *o = obj2gco(uv);
+    lj_assertG(!isblack(o), "bad black upvalue");
+    lj_assertG(!uv->closed && uvval(uv) != &uv->tv, "closed upvalue in chain");
+    setgcrefr(L->openupval, uv->nextgc);  /* No longer in open list. */
+    if (isdead(g, o)) {
+      lj_func_freeuv(g, uv);
+    } else {
+      unlinkuv(g, uv);
+      lj_gc_closeuv(g, uv);
+    }
+  }
+}
+
+void LJ_FASTCALL lj_func_freeuv(global_State *g, GCupval *uv)
+{
+  if (!uv->closed)
+    unlinkuv(g, uv);
+  lj_mem_freet(g, uv);
+}
+
+/* -- Functions (closures) ------------------------------------------------ */
+
+GCfunc *lj_func_newC(lua_State *L, MSize nelems, GCtab *env)
+{
+  GCfunc *fn = (GCfunc *)lj_mem_newgco(L, sizeCfunc(nelems));
+  fn->c.gct = ~LJ_TFUNC;
+  fn->c.ffid = FF_C;
+  fn->c.nupvalues = (uint8_t)nelems;
+  /* NOBARRIER: The GCfunc is new (marked white). */
+  setmref(fn->c.pc, &G(L)->bc_cfunc_ext);
+  setgcref(fn->c.env, obj2gco(env));
+  return fn;
+}
+
+static GCfunc *func_newL(lua_State *L, GCproto *pt, GCtab *env)
+{
+  uint32_t count;
+  GCfunc *fn = (GCfunc *)lj_mem_newgco(L, sizeLfunc((MSize)pt->sizeuv));
+  fn->l.gct = ~LJ_TFUNC;
+  fn->l.ffid = FF_LUA;
+  fn->l.nupvalues = 0;  /* Set to zero until upvalues are initialized. */
+  /* NOBARRIER: Really a setgcref. But the GCfunc is new (marked white). */
+  setmref(fn->l.pc, proto_bc(pt));
+  setgcref(fn->l.env, obj2gco(env));
+  /* Saturating 3 bit counter (0..7) for created closures. */
+  count = (uint32_t)pt->flags + PROTO_CLCOUNT;
+  pt->flags = (uint8_t)(count - ((count >> PROTO_CLC_BITS) & PROTO_CLCOUNT));
+  return fn;
+}
+
+/* Create a new Lua function with empty upvalues. */
+GCfunc *lj_func_newL_empty(lua_State *L, GCproto *pt, GCtab *env)
+{
+  GCfunc *fn = func_newL(L, pt, env);
+  MSize i, nuv = pt->sizeuv;
+  /* NOBARRIER: The GCfunc is new (marked white). */
+  for (i = 0; i < nuv; i++) {
+    GCupval *uv = func_emptyuv(L);
+    int32_t v = proto_uv(pt)[i];
+    uv->immutable = ((v / PROTO_UV_IMMUTABLE) & 1);
+    uv->dhash = (uint32_t)(uintptr_t)pt ^ (v << 24);
+    setgcref(fn->l.uvptr[i], obj2gco(uv));
+  }
+  fn->l.nupvalues = (uint8_t)nuv;
+  return fn;
+}
+
+/* Do a GC check and create a new Lua function with inherited upvalues. */
+GCfunc *lj_func_newL_gc(lua_State *L, GCproto *pt, GCfuncL *parent)
+{
+  GCfunc *fn;
+  GCRef *puv;
+  MSize i, nuv;
+  TValue *base;
+  lj_gc_check_fixtop(L);
+  fn = func_newL(L, pt, tabref(parent->env));
+  /* NOBARRIER: The GCfunc is new (marked white). */
+  puv = parent->uvptr;
+  nuv = pt->sizeuv;
+  base = L->base;
+  for (i = 0; i < nuv; i++) {
+    uint32_t v = proto_uv(pt)[i];
+    GCupval *uv;
+    if ((v & PROTO_UV_LOCAL)) {
+      uv = func_finduv(L, base + (v & 0xff));
+      uv->immutable = ((v / PROTO_UV_IMMUTABLE) & 1);
+      uv->dhash = (uint32_t)(uintptr_t)mref(parent->pc, char) ^ (v << 24);
+    } else {
+      uv = &gcref(puv[v])->uv;
+    }
+    setgcref(fn->l.uvptr[i], obj2gco(uv));
+  }
+  fn->l.nupvalues = (uint8_t)nuv;
+  return fn;
+}
+
+void LJ_FASTCALL lj_func_free(global_State *g, GCfunc *fn)
+{
+  MSize size = isluafunc(fn) ? sizeLfunc((MSize)fn->l.nupvalues) :
+			       sizeCfunc((MSize)fn->c.nupvalues);
+  lj_mem_free(g, fn, size);
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_func.h b/libs/luajit-cmake/luajit/src/lj_func.h
new file mode 100644
index 0000000..44df4de
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_func.h
@@ -0,0 +1,24 @@
+/*
+** Function handling (prototypes, functions and upvalues).
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_FUNC_H
+#define _LJ_FUNC_H
+
+#include "lj_obj.h"
+
+/* Prototypes. */
+LJ_FUNC void LJ_FASTCALL lj_func_freeproto(global_State *g, GCproto *pt);
+
+/* Upvalues. */
+LJ_FUNCA void LJ_FASTCALL lj_func_closeuv(lua_State *L, TValue *level);
+LJ_FUNC void LJ_FASTCALL lj_func_freeuv(global_State *g, GCupval *uv);
+
+/* Functions (closures). */
+LJ_FUNC GCfunc *lj_func_newC(lua_State *L, MSize nelems, GCtab *env);
+LJ_FUNC GCfunc *lj_func_newL_empty(lua_State *L, GCproto *pt, GCtab *env);
+LJ_FUNCA GCfunc *lj_func_newL_gc(lua_State *L, GCproto *pt, GCfuncL *parent);
+LJ_FUNC void LJ_FASTCALL lj_func_free(global_State *g, GCfunc *c);
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_gc.c b/libs/luajit-cmake/luajit/src/lj_gc.c
new file mode 100644
index 0000000..2fc52ec
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_gc.c
@@ -0,0 +1,909 @@
+/*
+** Garbage collector.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_gc_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_func.h"
+#include "lj_udata.h"
+#include "lj_meta.h"
+#include "lj_state.h"
+#include "lj_frame.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#endif
+#include "lj_trace.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+
+#define GCSTEPSIZE	1024u
+#define GCSWEEPMAX	40
+#define GCSWEEPCOST	10
+#define GCFINALIZECOST	100
+
+/* Macros to set GCobj colors and flags. */
+#define white2gray(x)		((x)->gch.marked &= (uint8_t)~LJ_GC_WHITES)
+#define gray2black(x)		((x)->gch.marked |= LJ_GC_BLACK)
+#define isfinalized(u)		((u)->marked & LJ_GC_FINALIZED)
+
+/* -- Mark phase ---------------------------------------------------------- */
+
+/* Mark a TValue (if needed). */
+#define gc_marktv(g, tv) \
+  { lj_assertG(!tvisgcv(tv) || (~itype(tv) == gcval(tv)->gch.gct), \
+	       "TValue and GC type mismatch"); \
+    if (tviswhite(tv)) gc_mark(g, gcV(tv)); }
+
+/* Mark a GCobj (if needed). */
+#define gc_markobj(g, o) \
+  { if (iswhite(obj2gco(o))) gc_mark(g, obj2gco(o)); }
+
+/* Mark a string object. */
+#define gc_mark_str(s)		((s)->marked &= (uint8_t)~LJ_GC_WHITES)
+
+/* Mark a white GCobj. */
+static void gc_mark(global_State *g, GCobj *o)
+{
+  int gct = o->gch.gct;
+  lj_assertG(iswhite(o), "mark of non-white object");
+  lj_assertG(!isdead(g, o), "mark of dead object");
+  white2gray(o);
+  if (LJ_UNLIKELY(gct == ~LJ_TUDATA)) {
+    GCtab *mt = tabref(gco2ud(o)->metatable);
+    gray2black(o);  /* Userdata are never gray. */
+    if (mt) gc_markobj(g, mt);
+    gc_markobj(g, tabref(gco2ud(o)->env));
+    if (LJ_HASBUFFER && gco2ud(o)->udtype == UDTYPE_BUFFER) {
+      SBufExt *sbx = (SBufExt *)uddata(gco2ud(o));
+      if (sbufiscow(sbx) && gcref(sbx->cowref))
+	gc_markobj(g, gcref(sbx->cowref));
+      if (gcref(sbx->dict_str))
+	gc_markobj(g, gcref(sbx->dict_str));
+      if (gcref(sbx->dict_mt))
+	gc_markobj(g, gcref(sbx->dict_mt));
+    }
+  } else if (LJ_UNLIKELY(gct == ~LJ_TUPVAL)) {
+    GCupval *uv = gco2uv(o);
+    gc_marktv(g, uvval(uv));
+    if (uv->closed)
+      gray2black(o);  /* Closed upvalues are never gray. */
+  } else if (gct != ~LJ_TSTR && gct != ~LJ_TCDATA) {
+    lj_assertG(gct == ~LJ_TFUNC || gct == ~LJ_TTAB ||
+	       gct == ~LJ_TTHREAD || gct == ~LJ_TPROTO || gct == ~LJ_TTRACE,
+	       "bad GC type %d", gct);
+    setgcrefr(o->gch.gclist, g->gc.gray);
+    setgcref(g->gc.gray, o);
+  }
+}
+
+/* Mark GC roots. */
+static void gc_mark_gcroot(global_State *g)
+{
+  ptrdiff_t i;
+  for (i = 0; i < GCROOT_MAX; i++)
+    if (gcref(g->gcroot[i]) != NULL)
+      gc_markobj(g, gcref(g->gcroot[i]));
+}
+
+/* Start a GC cycle and mark the root set. */
+static void gc_mark_start(global_State *g)
+{
+  setgcrefnull(g->gc.gray);
+  setgcrefnull(g->gc.grayagain);
+  setgcrefnull(g->gc.weak);
+  gc_markobj(g, mainthread(g));
+  gc_markobj(g, tabref(mainthread(g)->env));
+  gc_marktv(g, &g->registrytv);
+  gc_mark_gcroot(g);
+  g->gc.state = GCSpropagate;
+}
+
+/* Mark open upvalues. */
+static void gc_mark_uv(global_State *g)
+{
+  GCupval *uv;
+  for (uv = uvnext(&g->uvhead); uv != &g->uvhead; uv = uvnext(uv)) {
+    lj_assertG(uvprev(uvnext(uv)) == uv && uvnext(uvprev(uv)) == uv,
+	       "broken upvalue chain");
+    if (isgray(obj2gco(uv)))
+      gc_marktv(g, uvval(uv));
+  }
+}
+
+/* Mark userdata in mmudata list. */
+static void gc_mark_mmudata(global_State *g)
+{
+  GCobj *root = gcref(g->gc.mmudata);
+  GCobj *u = root;
+  if (u) {
+    do {
+      u = gcnext(u);
+      makewhite(g, u);  /* Could be from previous GC. */
+      gc_mark(g, u);
+    } while (u != root);
+  }
+}
+
+/* Separate userdata objects to be finalized to mmudata list. */
+size_t lj_gc_separateudata(global_State *g, int all)
+{
+  size_t m = 0;
+  GCRef *p = &mainthread(g)->nextgc;
+  GCobj *o;
+  while ((o = gcref(*p)) != NULL) {
+    if (!(iswhite(o) || all) || isfinalized(gco2ud(o))) {
+      p = &o->gch.nextgc;  /* Nothing to do. */
+    } else if (!lj_meta_fastg(g, tabref(gco2ud(o)->metatable), MM_gc)) {
+      markfinalized(o);  /* Done, as there's no __gc metamethod. */
+      p = &o->gch.nextgc;
+    } else {  /* Otherwise move userdata to be finalized to mmudata list. */
+      m += sizeudata(gco2ud(o));
+      markfinalized(o);
+      *p = o->gch.nextgc;
+      if (gcref(g->gc.mmudata)) {  /* Link to end of mmudata list. */
+	GCobj *root = gcref(g->gc.mmudata);
+	setgcrefr(o->gch.nextgc, root->gch.nextgc);
+	setgcref(root->gch.nextgc, o);
+	setgcref(g->gc.mmudata, o);
+      } else {  /* Create circular list. */
+	setgcref(o->gch.nextgc, o);
+	setgcref(g->gc.mmudata, o);
+      }
+    }
+  }
+  return m;
+}
+
+/* -- Propagation phase --------------------------------------------------- */
+
+/* Traverse a table. */
+static int gc_traverse_tab(global_State *g, GCtab *t)
+{
+  int weak = 0;
+  cTValue *mode;
+  GCtab *mt = tabref(t->metatable);
+  if (mt)
+    gc_markobj(g, mt);
+  mode = lj_meta_fastg(g, mt, MM_mode);
+  if (mode && tvisstr(mode)) {  /* Valid __mode field? */
+    const char *modestr = strVdata(mode);
+    int c;
+    while ((c = *modestr++)) {
+      if (c == 'k') weak |= LJ_GC_WEAKKEY;
+      else if (c == 'v') weak |= LJ_GC_WEAKVAL;
+    }
+    if (weak) {  /* Weak tables are cleared in the atomic phase. */
+#if LJ_HASFFI
+      CTState *cts = ctype_ctsG(g);
+      if (cts && cts->finalizer == t) {
+	weak = (int)(~0u & ~LJ_GC_WEAKVAL);
+      } else
+#endif
+      {
+	t->marked = (uint8_t)((t->marked & ~LJ_GC_WEAK) | weak);
+	setgcrefr(t->gclist, g->gc.weak);
+	setgcref(g->gc.weak, obj2gco(t));
+      }
+    }
+  }
+  if (weak == LJ_GC_WEAK)  /* Nothing to mark if both keys/values are weak. */
+    return 1;
+  if (!(weak & LJ_GC_WEAKVAL)) {  /* Mark array part. */
+    MSize i, asize = t->asize;
+    for (i = 0; i < asize; i++)
+      gc_marktv(g, arrayslot(t, i));
+  }
+  if (t->hmask > 0) {  /* Mark hash part. */
+    Node *node = noderef(t->node);
+    MSize i, hmask = t->hmask;
+    for (i = 0; i <= hmask; i++) {
+      Node *n = &node[i];
+      if (!tvisnil(&n->val)) {  /* Mark non-empty slot. */
+	lj_assertG(!tvisnil(&n->key), "mark of nil key in non-empty slot");
+	if (!(weak & LJ_GC_WEAKKEY)) gc_marktv(g, &n->key);
+	if (!(weak & LJ_GC_WEAKVAL)) gc_marktv(g, &n->val);
+      }
+    }
+  }
+  return weak;
+}
+
+/* Traverse a function. */
+static void gc_traverse_func(global_State *g, GCfunc *fn)
+{
+  gc_markobj(g, tabref(fn->c.env));
+  if (isluafunc(fn)) {
+    uint32_t i;
+    lj_assertG(fn->l.nupvalues <= funcproto(fn)->sizeuv,
+	       "function upvalues out of range");
+    gc_markobj(g, funcproto(fn));
+    for (i = 0; i < fn->l.nupvalues; i++)  /* Mark Lua function upvalues. */
+      gc_markobj(g, &gcref(fn->l.uvptr[i])->uv);
+  } else {
+    uint32_t i;
+    for (i = 0; i < fn->c.nupvalues; i++)  /* Mark C function upvalues. */
+      gc_marktv(g, &fn->c.upvalue[i]);
+  }
+}
+
+#if LJ_HASJIT
+/* Mark a trace. */
+static void gc_marktrace(global_State *g, TraceNo traceno)
+{
+  GCobj *o = obj2gco(traceref(G2J(g), traceno));
+  lj_assertG(traceno != G2J(g)->cur.traceno, "active trace escaped");
+  if (iswhite(o)) {
+    white2gray(o);
+    setgcrefr(o->gch.gclist, g->gc.gray);
+    setgcref(g->gc.gray, o);
+  }
+}
+
+/* Traverse a trace. */
+static void gc_traverse_trace(global_State *g, GCtrace *T)
+{
+  IRRef ref;
+  if (T->traceno == 0) return;
+  for (ref = T->nk; ref < REF_TRUE; ref++) {
+    IRIns *ir = &T->ir[ref];
+    if (ir->o == IR_KGC)
+      gc_markobj(g, ir_kgc(ir));
+    if (irt_is64(ir->t) && ir->o != IR_KNULL)
+      ref++;
+  }
+  if (T->link) gc_marktrace(g, T->link);
+  if (T->nextroot) gc_marktrace(g, T->nextroot);
+  if (T->nextside) gc_marktrace(g, T->nextside);
+  gc_markobj(g, gcref(T->startpt));
+}
+
+/* The current trace is a GC root while not anchored in the prototype (yet). */
+#define gc_traverse_curtrace(g)	gc_traverse_trace(g, &G2J(g)->cur)
+#else
+#define gc_traverse_curtrace(g)	UNUSED(g)
+#endif
+
+/* Traverse a prototype. */
+static void gc_traverse_proto(global_State *g, GCproto *pt)
+{
+  ptrdiff_t i;
+  gc_mark_str(proto_chunkname(pt));
+  for (i = -(ptrdiff_t)pt->sizekgc; i < 0; i++)  /* Mark collectable consts. */
+    gc_markobj(g, proto_kgc(pt, i));
+#if LJ_HASJIT
+  if (pt->trace) gc_marktrace(g, pt->trace);
+#endif
+}
+
+/* Traverse the frame structure of a stack. */
+static MSize gc_traverse_frames(global_State *g, lua_State *th)
+{
+  TValue *frame, *top = th->top-1, *bot = tvref(th->stack);
+  /* Note: extra vararg frame not skipped, marks function twice (harmless). */
+  for (frame = th->base-1; frame > bot+LJ_FR2; frame = frame_prev(frame)) {
+    GCfunc *fn = frame_func(frame);
+    TValue *ftop = frame;
+    if (isluafunc(fn)) ftop += funcproto(fn)->framesize;
+    if (ftop > top) top = ftop;
+    if (!LJ_FR2) gc_markobj(g, fn);  /* Need to mark hidden function (or L). */
+  }
+  top++;  /* Correct bias of -1 (frame == base-1). */
+  if (top > tvref(th->maxstack)) top = tvref(th->maxstack);
+  return (MSize)(top - bot);  /* Return minimum needed stack size. */
+}
+
+/* Traverse a thread object. */
+static void gc_traverse_thread(global_State *g, lua_State *th)
+{
+  TValue *o, *top = th->top;
+  for (o = tvref(th->stack)+1+LJ_FR2; o < top; o++)
+    gc_marktv(g, o);
+  if (g->gc.state == GCSatomic) {
+    top = tvref(th->stack) + th->stacksize;
+    for (; o < top; o++)  /* Clear unmarked slots. */
+      setnilV(o);
+  }
+  gc_markobj(g, tabref(th->env));
+  lj_state_shrinkstack(th, gc_traverse_frames(g, th));
+}
+
+/* Propagate one gray object. Traverse it and turn it black. */
+static size_t propagatemark(global_State *g)
+{
+  GCobj *o = gcref(g->gc.gray);
+  int gct = o->gch.gct;
+  lj_assertG(isgray(o), "propagation of non-gray object");
+  gray2black(o);
+  setgcrefr(g->gc.gray, o->gch.gclist);  /* Remove from gray list. */
+  if (LJ_LIKELY(gct == ~LJ_TTAB)) {
+    GCtab *t = gco2tab(o);
+    if (gc_traverse_tab(g, t) > 0)
+      black2gray(o);  /* Keep weak tables gray. */
+    return sizeof(GCtab) + sizeof(TValue) * t->asize +
+			   (t->hmask ? sizeof(Node) * (t->hmask + 1) : 0);
+  } else if (LJ_LIKELY(gct == ~LJ_TFUNC)) {
+    GCfunc *fn = gco2func(o);
+    gc_traverse_func(g, fn);
+    return isluafunc(fn) ? sizeLfunc((MSize)fn->l.nupvalues) :
+			   sizeCfunc((MSize)fn->c.nupvalues);
+  } else if (LJ_LIKELY(gct == ~LJ_TPROTO)) {
+    GCproto *pt = gco2pt(o);
+    gc_traverse_proto(g, pt);
+    return pt->sizept;
+  } else if (LJ_LIKELY(gct == ~LJ_TTHREAD)) {
+    lua_State *th = gco2th(o);
+    setgcrefr(th->gclist, g->gc.grayagain);
+    setgcref(g->gc.grayagain, o);
+    black2gray(o);  /* Threads are never black. */
+    gc_traverse_thread(g, th);
+    return sizeof(lua_State) + sizeof(TValue) * th->stacksize;
+  } else {
+#if LJ_HASJIT
+    GCtrace *T = gco2trace(o);
+    gc_traverse_trace(g, T);
+    return ((sizeof(GCtrace)+7)&~7) + (T->nins-T->nk)*sizeof(IRIns) +
+	   T->nsnap*sizeof(SnapShot) + T->nsnapmap*sizeof(SnapEntry);
+#else
+    lj_assertG(0, "bad GC type %d", gct);
+    return 0;
+#endif
+  }
+}
+
+/* Propagate all gray objects. */
+static size_t gc_propagate_gray(global_State *g)
+{
+  size_t m = 0;
+  while (gcref(g->gc.gray) != NULL)
+    m += propagatemark(g);
+  return m;
+}
+
+/* -- Sweep phase --------------------------------------------------------- */
+
+/* Type of GC free functions. */
+typedef void (LJ_FASTCALL *GCFreeFunc)(global_State *g, GCobj *o);
+
+/* GC free functions for LJ_TSTR .. LJ_TUDATA. ORDER LJ_T */
+static const GCFreeFunc gc_freefunc[] = {
+  (GCFreeFunc)lj_str_free,
+  (GCFreeFunc)lj_func_freeuv,
+  (GCFreeFunc)lj_state_free,
+  (GCFreeFunc)lj_func_freeproto,
+  (GCFreeFunc)lj_func_free,
+#if LJ_HASJIT
+  (GCFreeFunc)lj_trace_free,
+#else
+  (GCFreeFunc)0,
+#endif
+#if LJ_HASFFI
+  (GCFreeFunc)lj_cdata_free,
+#else
+  (GCFreeFunc)0,
+#endif
+  (GCFreeFunc)lj_tab_free,
+  (GCFreeFunc)lj_udata_free
+};
+
+/* Full sweep of a GC list. */
+#define gc_fullsweep(g, p)	gc_sweep(g, (p), ~(uint32_t)0)
+
+/* Partial sweep of a GC list. */
+static GCRef *gc_sweep(global_State *g, GCRef *p, uint32_t lim)
+{
+  /* Mask with other white and LJ_GC_FIXED. Or LJ_GC_SFIXED on shutdown. */
+  int ow = otherwhite(g);
+  GCobj *o;
+  while ((o = gcref(*p)) != NULL && lim-- > 0) {
+    if (o->gch.gct == ~LJ_TTHREAD)  /* Need to sweep open upvalues, too. */
+      gc_fullsweep(g, &gco2th(o)->openupval);
+    if (((o->gch.marked ^ LJ_GC_WHITES) & ow)) {  /* Black or current white? */
+      lj_assertG(!isdead(g, o) || (o->gch.marked & LJ_GC_FIXED),
+		 "sweep of undead object");
+      makewhite(g, o);  /* Value is alive, change to the current white. */
+      p = &o->gch.nextgc;
+    } else {  /* Otherwise value is dead, free it. */
+      lj_assertG(isdead(g, o) || ow == LJ_GC_SFIXED,
+		 "sweep of unlive object");
+      setgcrefr(*p, o->gch.nextgc);
+      if (o == gcref(g->gc.root))
+	setgcrefr(g->gc.root, o->gch.nextgc);  /* Adjust list anchor. */
+      gc_freefunc[o->gch.gct - ~LJ_TSTR](g, o);
+    }
+  }
+  return p;
+}
+
+/* Sweep one string interning table chain. Preserves hashalg bit. */
+static void gc_sweepstr(global_State *g, GCRef *chain)
+{
+  /* Mask with other white and LJ_GC_FIXED. Or LJ_GC_SFIXED on shutdown. */
+  int ow = otherwhite(g);
+  uintptr_t u = gcrefu(*chain);
+  GCRef q;
+  GCRef *p = &q;
+  GCobj *o;
+  setgcrefp(q, (u & ~(uintptr_t)1));
+  while ((o = gcref(*p)) != NULL) {
+    if (((o->gch.marked ^ LJ_GC_WHITES) & ow)) {  /* Black or current white? */
+      lj_assertG(!isdead(g, o) || (o->gch.marked & LJ_GC_FIXED),
+		 "sweep of undead string");
+      makewhite(g, o);  /* String is alive, change to the current white. */
+      p = &o->gch.nextgc;
+    } else {  /* Otherwise string is dead, free it. */
+      lj_assertG(isdead(g, o) || ow == LJ_GC_SFIXED,
+		 "sweep of unlive string");
+      setgcrefr(*p, o->gch.nextgc);
+      lj_str_free(g, gco2str(o));
+    }
+  }
+  setgcrefp(*chain, (gcrefu(q) | (u & 1)));
+}
+
+/* Check whether we can clear a key or a value slot from a table. */
+static int gc_mayclear(cTValue *o, int val)
+{
+  if (tvisgcv(o)) {  /* Only collectable objects can be weak references. */
+    if (tvisstr(o)) {  /* But strings cannot be used as weak references. */
+      gc_mark_str(strV(o));  /* And need to be marked. */
+      return 0;
+    }
+    if (iswhite(gcV(o)))
+      return 1;  /* Object is about to be collected. */
+    if (tvisudata(o) && val && isfinalized(udataV(o)))
+      return 1;  /* Finalized userdata is dropped only from values. */
+  }
+  return 0;  /* Cannot clear. */
+}
+
+/* Clear collected entries from weak tables. */
+static void gc_clearweak(global_State *g, GCobj *o)
+{
+  UNUSED(g);
+  while (o) {
+    GCtab *t = gco2tab(o);
+    lj_assertG((t->marked & LJ_GC_WEAK), "clear of non-weak table");
+    if ((t->marked & LJ_GC_WEAKVAL)) {
+      MSize i, asize = t->asize;
+      for (i = 0; i < asize; i++) {
+	/* Clear array slot when value is about to be collected. */
+	TValue *tv = arrayslot(t, i);
+	if (gc_mayclear(tv, 1))
+	  setnilV(tv);
+      }
+    }
+    if (t->hmask > 0) {
+      Node *node = noderef(t->node);
+      MSize i, hmask = t->hmask;
+      for (i = 0; i <= hmask; i++) {
+	Node *n = &node[i];
+	/* Clear hash slot when key or value is about to be collected. */
+	if (!tvisnil(&n->val) && (gc_mayclear(&n->key, 0) ||
+				  gc_mayclear(&n->val, 1)))
+	  setnilV(&n->val);
+      }
+    }
+    o = gcref(t->gclist);
+  }
+}
+
+/* Call a userdata or cdata finalizer. */
+static void gc_call_finalizer(global_State *g, lua_State *L,
+			      cTValue *mo, GCobj *o)
+{
+  /* Save and restore lots of state around the __gc callback. */
+  uint8_t oldh = hook_save(g);
+  GCSize oldt = g->gc.threshold;
+  int errcode;
+  TValue *top;
+  lj_trace_abort(g);
+  hook_entergc(g);  /* Disable hooks and new traces during __gc. */
+  if (LJ_HASPROFILE && (oldh & HOOK_PROFILE)) lj_dispatch_update(g);
+  g->gc.threshold = LJ_MAX_MEM;  /* Prevent GC steps. */
+  top = L->top;
+  copyTV(L, top++, mo);
+  if (LJ_FR2) setnilV(top++);
+  setgcV(L, top, o, ~o->gch.gct);
+  L->top = top+1;
+  errcode = lj_vm_pcall(L, top, 1+0, -1);  /* Stack: |mo|o| -> | */
+  hook_restore(g, oldh);
+  if (LJ_HASPROFILE && (oldh & HOOK_PROFILE)) lj_dispatch_update(g);
+  g->gc.threshold = oldt;  /* Restore GC threshold. */
+  if (errcode)
+    lj_err_throw(L, errcode);  /* Propagate errors. */
+}
+
+/* Finalize one userdata or cdata object from the mmudata list. */
+static void gc_finalize(lua_State *L)
+{
+  global_State *g = G(L);
+  GCobj *o = gcnext(gcref(g->gc.mmudata));
+  cTValue *mo;
+  lj_assertG(tvref(g->jit_base) == NULL, "finalizer called on trace");
+  /* Unchain from list of userdata to be finalized. */
+  if (o == gcref(g->gc.mmudata))
+    setgcrefnull(g->gc.mmudata);
+  else
+    setgcrefr(gcref(g->gc.mmudata)->gch.nextgc, o->gch.nextgc);
+#if LJ_HASFFI
+  if (o->gch.gct == ~LJ_TCDATA) {
+    TValue tmp, *tv;
+    /* Add cdata back to the GC list and make it white. */
+    setgcrefr(o->gch.nextgc, g->gc.root);
+    setgcref(g->gc.root, o);
+    makewhite(g, o);
+    o->gch.marked &= (uint8_t)~LJ_GC_CDATA_FIN;
+    /* Resolve finalizer. */
+    setcdataV(L, &tmp, gco2cd(o));
+    tv = lj_tab_set(L, ctype_ctsG(g)->finalizer, &tmp);
+    if (!tvisnil(tv)) {
+      g->gc.nocdatafin = 0;
+      copyTV(L, &tmp, tv);
+      setnilV(tv);  /* Clear entry in finalizer table. */
+      gc_call_finalizer(g, L, &tmp, o);
+    }
+    return;
+  }
+#endif
+  /* Add userdata back to the main userdata list and make it white. */
+  setgcrefr(o->gch.nextgc, mainthread(g)->nextgc);
+  setgcref(mainthread(g)->nextgc, o);
+  makewhite(g, o);
+  /* Resolve the __gc metamethod. */
+  mo = lj_meta_fastg(g, tabref(gco2ud(o)->metatable), MM_gc);
+  if (mo)
+    gc_call_finalizer(g, L, mo, o);
+}
+
+/* Finalize all userdata objects from mmudata list. */
+void lj_gc_finalize_udata(lua_State *L)
+{
+  while (gcref(G(L)->gc.mmudata) != NULL)
+    gc_finalize(L);
+}
+
+#if LJ_HASFFI
+/* Finalize all cdata objects from finalizer table. */
+void lj_gc_finalize_cdata(lua_State *L)
+{
+  global_State *g = G(L);
+  CTState *cts = ctype_ctsG(g);
+  if (cts) {
+    GCtab *t = cts->finalizer;
+    Node *node = noderef(t->node);
+    ptrdiff_t i;
+    setgcrefnull(t->metatable);  /* Mark finalizer table as disabled. */
+    for (i = (ptrdiff_t)t->hmask; i >= 0; i--)
+      if (!tvisnil(&node[i].val) && tviscdata(&node[i].key)) {
+	GCobj *o = gcV(&node[i].key);
+	TValue tmp;
+	makewhite(g, o);
+	o->gch.marked &= (uint8_t)~LJ_GC_CDATA_FIN;
+	copyTV(L, &tmp, &node[i].val);
+	setnilV(&node[i].val);
+	gc_call_finalizer(g, L, &tmp, o);
+      }
+  }
+}
+#endif
+
+/* Free all remaining GC objects. */
+void lj_gc_freeall(global_State *g)
+{
+  MSize i, strmask;
+  /* Free everything, except super-fixed objects (the main thread). */
+  g->gc.currentwhite = LJ_GC_WHITES | LJ_GC_SFIXED;
+  gc_fullsweep(g, &g->gc.root);
+  strmask = g->str.mask;
+  for (i = 0; i <= strmask; i++)  /* Free all string hash chains. */
+    gc_sweepstr(g, &g->str.tab[i]);
+}
+
+/* -- Collector ----------------------------------------------------------- */
+
+/* Atomic part of the GC cycle, transitioning from mark to sweep phase. */
+static void atomic(global_State *g, lua_State *L)
+{
+  size_t udsize;
+
+  gc_mark_uv(g);  /* Need to remark open upvalues (the thread may be dead). */
+  gc_propagate_gray(g);  /* Propagate any left-overs. */
+
+  setgcrefr(g->gc.gray, g->gc.weak);  /* Empty the list of weak tables. */
+  setgcrefnull(g->gc.weak);
+  lj_assertG(!iswhite(obj2gco(mainthread(g))), "main thread turned white");
+  gc_markobj(g, L);  /* Mark running thread. */
+  gc_traverse_curtrace(g);  /* Traverse current trace. */
+  gc_mark_gcroot(g);  /* Mark GC roots (again). */
+  gc_propagate_gray(g);  /* Propagate all of the above. */
+
+  setgcrefr(g->gc.gray, g->gc.grayagain);  /* Empty the 2nd chance list. */
+  setgcrefnull(g->gc.grayagain);
+  gc_propagate_gray(g);  /* Propagate it. */
+
+  udsize = lj_gc_separateudata(g, 0);  /* Separate userdata to be finalized. */
+  gc_mark_mmudata(g);  /* Mark them. */
+  udsize += gc_propagate_gray(g);  /* And propagate the marks. */
+
+  /* All marking done, clear weak tables. */
+  gc_clearweak(g, gcref(g->gc.weak));
+
+  lj_buf_shrink(L, &g->tmpbuf);  /* Shrink temp buffer. */
+
+  /* Prepare for sweep phase. */
+  g->gc.currentwhite = (uint8_t)otherwhite(g);  /* Flip current white. */
+  g->strempty.marked = g->gc.currentwhite;
+  setmref(g->gc.sweep, &g->gc.root);
+  g->gc.estimate = g->gc.total - (GCSize)udsize;  /* Initial estimate. */
+}
+
+/* GC state machine. Returns a cost estimate for each step performed. */
+static size_t gc_onestep(lua_State *L)
+{
+  global_State *g = G(L);
+  switch (g->gc.state) {
+  case GCSpause:
+    gc_mark_start(g);  /* Start a new GC cycle by marking all GC roots. */
+    return 0;
+  case GCSpropagate:
+    if (gcref(g->gc.gray) != NULL)
+      return propagatemark(g);  /* Propagate one gray object. */
+    g->gc.state = GCSatomic;  /* End of mark phase. */
+    return 0;
+  case GCSatomic:
+    if (tvref(g->jit_base))  /* Don't run atomic phase on trace. */
+      return LJ_MAX_MEM;
+    atomic(g, L);
+    g->gc.state = GCSsweepstring;  /* Start of sweep phase. */
+    g->gc.sweepstr = 0;
+    return 0;
+  case GCSsweepstring: {
+    GCSize old = g->gc.total;
+    gc_sweepstr(g, &g->str.tab[g->gc.sweepstr++]);  /* Sweep one chain. */
+    if (g->gc.sweepstr > g->str.mask)
+      g->gc.state = GCSsweep;  /* All string hash chains sweeped. */
+    lj_assertG(old >= g->gc.total, "sweep increased memory");
+    g->gc.estimate -= old - g->gc.total;
+    return GCSWEEPCOST;
+    }
+  case GCSsweep: {
+    GCSize old = g->gc.total;
+    setmref(g->gc.sweep, gc_sweep(g, mref(g->gc.sweep, GCRef), GCSWEEPMAX));
+    lj_assertG(old >= g->gc.total, "sweep increased memory");
+    g->gc.estimate -= old - g->gc.total;
+    if (gcref(*mref(g->gc.sweep, GCRef)) == NULL) {
+      if (g->str.num <= (g->str.mask >> 2) && g->str.mask > LJ_MIN_STRTAB*2-1)
+	lj_str_resize(L, g->str.mask >> 1);  /* Shrink string table. */
+      if (gcref(g->gc.mmudata)) {  /* Need any finalizations? */
+	g->gc.state = GCSfinalize;
+#if LJ_HASFFI
+	g->gc.nocdatafin = 1;
+#endif
+      } else {  /* Otherwise skip this phase to help the JIT. */
+	g->gc.state = GCSpause;  /* End of GC cycle. */
+	g->gc.debt = 0;
+      }
+    }
+    return GCSWEEPMAX*GCSWEEPCOST;
+    }
+  case GCSfinalize:
+    if (gcref(g->gc.mmudata) != NULL) {
+      GCSize old = g->gc.total;
+      if (tvref(g->jit_base))  /* Don't call finalizers on trace. */
+	return LJ_MAX_MEM;
+      gc_finalize(L);  /* Finalize one userdata object. */
+      if (old >= g->gc.total && g->gc.estimate > old - g->gc.total)
+	g->gc.estimate -= old - g->gc.total;
+      if (g->gc.estimate > GCFINALIZECOST)
+	g->gc.estimate -= GCFINALIZECOST;
+      return GCFINALIZECOST;
+    }
+#if LJ_HASFFI
+    if (!g->gc.nocdatafin) lj_tab_rehash(L, ctype_ctsG(g)->finalizer);
+#endif
+    g->gc.state = GCSpause;  /* End of GC cycle. */
+    g->gc.debt = 0;
+    return 0;
+  default:
+    lj_assertG(0, "bad GC state");
+    return 0;
+  }
+}
+
+/* Perform a limited amount of incremental GC steps. */
+int LJ_FASTCALL lj_gc_step(lua_State *L)
+{
+  global_State *g = G(L);
+  GCSize lim;
+  int32_t ostate = g->vmstate;
+  setvmstate(g, GC);
+  lim = (GCSTEPSIZE/100) * g->gc.stepmul;
+  if (lim == 0)
+    lim = LJ_MAX_MEM;
+  if (g->gc.total > g->gc.threshold)
+    g->gc.debt += g->gc.total - g->gc.threshold;
+  do {
+    lim -= (GCSize)gc_onestep(L);
+    if (g->gc.state == GCSpause) {
+      g->gc.threshold = (g->gc.estimate/100) * g->gc.pause;
+      g->vmstate = ostate;
+      return 1;  /* Finished a GC cycle. */
+    }
+  } while (sizeof(lim) == 8 ? ((int64_t)lim > 0) : ((int32_t)lim > 0));
+  if (g->gc.debt < GCSTEPSIZE) {
+    g->gc.threshold = g->gc.total + GCSTEPSIZE;
+    g->vmstate = ostate;
+    return -1;
+  } else {
+    g->gc.debt -= GCSTEPSIZE;
+    g->gc.threshold = g->gc.total;
+    g->vmstate = ostate;
+    return 0;
+  }
+}
+
+/* Ditto, but fix the stack top first. */
+void LJ_FASTCALL lj_gc_step_fixtop(lua_State *L)
+{
+  if (curr_funcisL(L)) L->top = curr_topL(L);
+  lj_gc_step(L);
+}
+
+#if LJ_HASJIT
+/* Perform multiple GC steps. Called from JIT-compiled code. */
+int LJ_FASTCALL lj_gc_step_jit(global_State *g, MSize steps)
+{
+  lua_State *L = gco2th(gcref(g->cur_L));
+  L->base = tvref(G(L)->jit_base);
+  L->top = curr_topL(L);
+  while (steps-- > 0 && lj_gc_step(L) == 0)
+    ;
+  /* Return 1 to force a trace exit. */
+  return (G(L)->gc.state == GCSatomic || G(L)->gc.state == GCSfinalize);
+}
+#endif
+
+/* Perform a full GC cycle. */
+void lj_gc_fullgc(lua_State *L)
+{
+  global_State *g = G(L);
+  int32_t ostate = g->vmstate;
+  setvmstate(g, GC);
+  if (g->gc.state <= GCSatomic) {  /* Caught somewhere in the middle. */
+    setmref(g->gc.sweep, &g->gc.root);  /* Sweep everything (preserving it). */
+    setgcrefnull(g->gc.gray);  /* Reset lists from partial propagation. */
+    setgcrefnull(g->gc.grayagain);
+    setgcrefnull(g->gc.weak);
+    g->gc.state = GCSsweepstring;  /* Fast forward to the sweep phase. */
+    g->gc.sweepstr = 0;
+  }
+  while (g->gc.state == GCSsweepstring || g->gc.state == GCSsweep)
+    gc_onestep(L);  /* Finish sweep. */
+  lj_assertG(g->gc.state == GCSfinalize || g->gc.state == GCSpause,
+	     "bad GC state");
+  /* Now perform a full GC. */
+  g->gc.state = GCSpause;
+  do { gc_onestep(L); } while (g->gc.state != GCSpause);
+  g->gc.threshold = (g->gc.estimate/100) * g->gc.pause;
+  g->vmstate = ostate;
+}
+
+/* -- Write barriers ------------------------------------------------------ */
+
+/* Move the GC propagation frontier forward. */
+void lj_gc_barrierf(global_State *g, GCobj *o, GCobj *v)
+{
+  lj_assertG(isblack(o) && iswhite(v) && !isdead(g, v) && !isdead(g, o),
+	     "bad object states for forward barrier");
+  lj_assertG(g->gc.state != GCSfinalize && g->gc.state != GCSpause,
+	     "bad GC state");
+  lj_assertG(o->gch.gct != ~LJ_TTAB, "barrier object is not a table");
+  /* Preserve invariant during propagation. Otherwise it doesn't matter. */
+  if (g->gc.state == GCSpropagate || g->gc.state == GCSatomic)
+    gc_mark(g, v);  /* Move frontier forward. */
+  else
+    makewhite(g, o);  /* Make it white to avoid the following barrier. */
+}
+
+/* Specialized barrier for closed upvalue. Pass &uv->tv. */
+void LJ_FASTCALL lj_gc_barrieruv(global_State *g, TValue *tv)
+{
+#define TV2MARKED(x) \
+  (*((uint8_t *)(x) - offsetof(GCupval, tv) + offsetof(GCupval, marked)))
+  if (g->gc.state == GCSpropagate || g->gc.state == GCSatomic)
+    gc_mark(g, gcV(tv));
+  else
+    TV2MARKED(tv) = (TV2MARKED(tv) & (uint8_t)~LJ_GC_COLORS) | curwhite(g);
+#undef TV2MARKED
+}
+
+/* Close upvalue. Also needs a write barrier. */
+void lj_gc_closeuv(global_State *g, GCupval *uv)
+{
+  GCobj *o = obj2gco(uv);
+  /* Copy stack slot to upvalue itself and point to the copy. */
+  copyTV(mainthread(g), &uv->tv, uvval(uv));
+  setmref(uv->v, &uv->tv);
+  uv->closed = 1;
+  setgcrefr(o->gch.nextgc, g->gc.root);
+  setgcref(g->gc.root, o);
+  if (isgray(o)) {  /* A closed upvalue is never gray, so fix this. */
+    if (g->gc.state == GCSpropagate || g->gc.state == GCSatomic) {
+      gray2black(o);  /* Make it black and preserve invariant. */
+      if (tviswhite(&uv->tv))
+	lj_gc_barrierf(g, o, gcV(&uv->tv));
+    } else {
+      makewhite(g, o);  /* Make it white, i.e. sweep the upvalue. */
+      lj_assertG(g->gc.state != GCSfinalize && g->gc.state != GCSpause,
+		 "bad GC state");
+    }
+  }
+}
+
+#if LJ_HASJIT
+/* Mark a trace if it's saved during the propagation phase. */
+void lj_gc_barriertrace(global_State *g, uint32_t traceno)
+{
+  if (g->gc.state == GCSpropagate || g->gc.state == GCSatomic)
+    gc_marktrace(g, traceno);
+}
+#endif
+
+/* -- Allocator ----------------------------------------------------------- */
+
+/* Call pluggable memory allocator to allocate or resize a fragment. */
+void *lj_mem_realloc(lua_State *L, void *p, GCSize osz, GCSize nsz)
+{
+  global_State *g = G(L);
+  lj_assertG((osz == 0) == (p == NULL), "realloc API violation");
+  p = g->allocf(g->allocd, p, osz, nsz);
+  if (p == NULL && nsz > 0)
+    lj_err_mem(L);
+  lj_assertG((nsz == 0) == (p == NULL), "allocf API violation");
+  lj_assertG(checkptrGC(p),
+	     "allocated memory address %p outside required range", p);
+  g->gc.total = (g->gc.total - osz) + nsz;
+  return p;
+}
+
+/* Allocate new GC object and link it to the root set. */
+void * LJ_FASTCALL lj_mem_newgco(lua_State *L, GCSize size)
+{
+  global_State *g = G(L);
+  GCobj *o = (GCobj *)g->allocf(g->allocd, NULL, 0, size);
+  if (o == NULL)
+    lj_err_mem(L);
+  lj_assertG(checkptrGC(o),
+	     "allocated memory address %p outside required range", o);
+  g->gc.total += size;
+  setgcrefr(o->gch.nextgc, g->gc.root);
+  setgcref(g->gc.root, o);
+  newwhite(g, o);
+  return o;
+}
+
+/* Resize growable vector. */
+void *lj_mem_grow(lua_State *L, void *p, MSize *szp, MSize lim, MSize esz)
+{
+  MSize sz = (*szp) << 1;
+  if (sz < LJ_MIN_VECSZ)
+    sz = LJ_MIN_VECSZ;
+  if (sz > lim)
+    sz = lim;
+  p = lj_mem_realloc(L, p, (*szp)*esz, sz*esz);
+  *szp = sz;
+  return p;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_gc.h b/libs/luajit-cmake/luajit/src/lj_gc.h
new file mode 100644
index 0000000..0df7dee
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_gc.h
@@ -0,0 +1,136 @@
+/*
+** Garbage collector.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_GC_H
+#define _LJ_GC_H
+
+#include "lj_obj.h"
+
+/* Garbage collector states. Order matters. */
+enum {
+  GCSpause, GCSpropagate, GCSatomic, GCSsweepstring, GCSsweep, GCSfinalize
+};
+
+/* Bitmasks for marked field of GCobj. */
+#define LJ_GC_WHITE0	0x01
+#define LJ_GC_WHITE1	0x02
+#define LJ_GC_BLACK	0x04
+#define LJ_GC_FINALIZED	0x08
+#define LJ_GC_WEAKKEY	0x08
+#define LJ_GC_WEAKVAL	0x10
+#define LJ_GC_CDATA_FIN	0x10
+#define LJ_GC_FIXED	0x20
+#define LJ_GC_SFIXED	0x40
+
+#define LJ_GC_WHITES	(LJ_GC_WHITE0 | LJ_GC_WHITE1)
+#define LJ_GC_COLORS	(LJ_GC_WHITES | LJ_GC_BLACK)
+#define LJ_GC_WEAK	(LJ_GC_WEAKKEY | LJ_GC_WEAKVAL)
+
+/* Macros to test and set GCobj colors. */
+#define iswhite(x)	((x)->gch.marked & LJ_GC_WHITES)
+#define isblack(x)	((x)->gch.marked & LJ_GC_BLACK)
+#define isgray(x)	(!((x)->gch.marked & (LJ_GC_BLACK|LJ_GC_WHITES)))
+#define tviswhite(x)	(tvisgcv(x) && iswhite(gcV(x)))
+#define otherwhite(g)	(g->gc.currentwhite ^ LJ_GC_WHITES)
+#define isdead(g, v)	((v)->gch.marked & otherwhite(g) & LJ_GC_WHITES)
+
+#define curwhite(g)	((g)->gc.currentwhite & LJ_GC_WHITES)
+#define newwhite(g, x)	(obj2gco(x)->gch.marked = (uint8_t)curwhite(g))
+#define makewhite(g, x) \
+  ((x)->gch.marked = ((x)->gch.marked & (uint8_t)~LJ_GC_COLORS) | curwhite(g))
+#define flipwhite(x)	((x)->gch.marked ^= LJ_GC_WHITES)
+#define black2gray(x)	((x)->gch.marked &= (uint8_t)~LJ_GC_BLACK)
+#define fixstring(s)	((s)->marked |= LJ_GC_FIXED)
+#define markfinalized(x)	((x)->gch.marked |= LJ_GC_FINALIZED)
+
+/* Collector. */
+LJ_FUNC size_t lj_gc_separateudata(global_State *g, int all);
+LJ_FUNC void lj_gc_finalize_udata(lua_State *L);
+#if LJ_HASFFI
+LJ_FUNC void lj_gc_finalize_cdata(lua_State *L);
+#else
+#define lj_gc_finalize_cdata(L)		UNUSED(L)
+#endif
+LJ_FUNC void lj_gc_freeall(global_State *g);
+LJ_FUNCA int LJ_FASTCALL lj_gc_step(lua_State *L);
+LJ_FUNCA void LJ_FASTCALL lj_gc_step_fixtop(lua_State *L);
+#if LJ_HASJIT
+LJ_FUNC int LJ_FASTCALL lj_gc_step_jit(global_State *g, MSize steps);
+#endif
+LJ_FUNC void lj_gc_fullgc(lua_State *L);
+
+/* GC check: drive collector forward if the GC threshold has been reached. */
+#define lj_gc_check(L) \
+  { if (LJ_UNLIKELY(G(L)->gc.total >= G(L)->gc.threshold)) \
+      lj_gc_step(L); }
+#define lj_gc_check_fixtop(L) \
+  { if (LJ_UNLIKELY(G(L)->gc.total >= G(L)->gc.threshold)) \
+      lj_gc_step_fixtop(L); }
+
+/* Write barriers. */
+LJ_FUNC void lj_gc_barrierf(global_State *g, GCobj *o, GCobj *v);
+LJ_FUNCA void LJ_FASTCALL lj_gc_barrieruv(global_State *g, TValue *tv);
+LJ_FUNC void lj_gc_closeuv(global_State *g, GCupval *uv);
+#if LJ_HASJIT
+LJ_FUNC void lj_gc_barriertrace(global_State *g, uint32_t traceno);
+#endif
+
+/* Move the GC propagation frontier back for tables (make it gray again). */
+static LJ_AINLINE void lj_gc_barrierback(global_State *g, GCtab *t)
+{
+  GCobj *o = obj2gco(t);
+  lj_assertG(isblack(o) && !isdead(g, o),
+	     "bad object states for backward barrier");
+  lj_assertG(g->gc.state != GCSfinalize && g->gc.state != GCSpause,
+	     "bad GC state");
+  black2gray(o);
+  setgcrefr(t->gclist, g->gc.grayagain);
+  setgcref(g->gc.grayagain, o);
+}
+
+/* Barrier for stores to table objects. TValue and GCobj variant. */
+#define lj_gc_anybarriert(L, t)  \
+  { if (LJ_UNLIKELY(isblack(obj2gco(t)))) lj_gc_barrierback(G(L), (t)); }
+#define lj_gc_barriert(L, t, tv) \
+  { if (tviswhite(tv) && isblack(obj2gco(t))) \
+      lj_gc_barrierback(G(L), (t)); }
+#define lj_gc_objbarriert(L, t, o)  \
+  { if (iswhite(obj2gco(o)) && isblack(obj2gco(t))) \
+      lj_gc_barrierback(G(L), (t)); }
+
+/* Barrier for stores to any other object. TValue and GCobj variant. */
+#define lj_gc_barrier(L, p, tv) \
+  { if (tviswhite(tv) && isblack(obj2gco(p))) \
+      lj_gc_barrierf(G(L), obj2gco(p), gcV(tv)); }
+#define lj_gc_objbarrier(L, p, o) \
+  { if (iswhite(obj2gco(o)) && isblack(obj2gco(p))) \
+      lj_gc_barrierf(G(L), obj2gco(p), obj2gco(o)); }
+
+/* Allocator. */
+LJ_FUNC void *lj_mem_realloc(lua_State *L, void *p, GCSize osz, GCSize nsz);
+LJ_FUNC void * LJ_FASTCALL lj_mem_newgco(lua_State *L, GCSize size);
+LJ_FUNC void *lj_mem_grow(lua_State *L, void *p,
+			  MSize *szp, MSize lim, MSize esz);
+
+#define lj_mem_new(L, s)	lj_mem_realloc(L, NULL, 0, (s))
+
+static LJ_AINLINE void lj_mem_free(global_State *g, void *p, size_t osize)
+{
+  g->gc.total -= (GCSize)osize;
+  g->allocf(g->allocd, p, osize, 0);
+}
+
+#define lj_mem_newvec(L, n, t)	((t *)lj_mem_new(L, (GCSize)((n)*sizeof(t))))
+#define lj_mem_reallocvec(L, p, on, n, t) \
+  ((p) = (t *)lj_mem_realloc(L, p, (on)*sizeof(t), (GCSize)((n)*sizeof(t))))
+#define lj_mem_growvec(L, p, n, m, t) \
+  ((p) = (t *)lj_mem_grow(L, (p), &(n), (m), (MSize)sizeof(t)))
+#define lj_mem_freevec(g, p, n, t)	lj_mem_free(g, (p), (n)*sizeof(t))
+
+#define lj_mem_newobj(L, t)	((t *)lj_mem_newgco(L, sizeof(t)))
+#define lj_mem_newt(L, s, t)	((t *)lj_mem_new(L, (s)))
+#define lj_mem_freet(g, p)	lj_mem_free(g, (p), sizeof(*(p)))
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_gdbjit.c b/libs/luajit-cmake/luajit/src/lj_gdbjit.c
new file mode 100644
index 0000000..c50d0d4
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_gdbjit.c
@@ -0,0 +1,818 @@
+/*
+** Client for the GDB JIT API.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_gdbjit_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_frame.h"
+#include "lj_buf.h"
+#include "lj_strfmt.h"
+#include "lj_jit.h"
+#include "lj_dispatch.h"
+
+/* This is not compiled in by default.
+** Enable with -DLUAJIT_USE_GDBJIT in the Makefile and recompile everything.
+*/
+#ifdef LUAJIT_USE_GDBJIT
+
+/* The GDB JIT API allows JIT compilers to pass debug information about
+** JIT-compiled code back to GDB. You need at least GDB 7.0 or higher
+** to see it in action.
+**
+** This is a passive API, so it works even when not running under GDB
+** or when attaching to an already running process. Alas, this implies
+** enabling it always has a non-negligible overhead -- do not use in
+** release mode!
+**
+** The LuaJIT GDB JIT client is rather minimal at the moment. It gives
+** each trace a symbol name and adds a source location and frame unwind
+** information. Obviously LuaJIT itself and any embedding C application
+** should be compiled with debug symbols, too (see the Makefile).
+**
+** Traces are named TRACE_1, TRACE_2, ... these correspond to the trace
+** numbers from -jv or -jdump. Use "break TRACE_1" or "tbreak TRACE_1" etc.
+** to set breakpoints on specific traces (even ahead of their creation).
+**
+** The source location for each trace allows listing the corresponding
+** source lines with the GDB command "list" (but only if the Lua source
+** has been loaded from a file). Currently this is always set to the
+** location where the trace has been started.
+**
+** Frame unwind information can be inspected with the GDB command
+** "info frame". This also allows proper backtraces across JIT-compiled
+** code with the GDB command "bt".
+**
+** You probably want to add the following settings to a .gdbinit file
+** (or add them to ~/.gdbinit):
+**   set disassembly-flavor intel
+**   set breakpoint pending on
+**
+** Here's a sample GDB session:
+** ------------------------------------------------------------------------
+
+$ cat >x.lua
+for outer=1,100 do
+  for inner=1,100 do end
+end
+^D
+
+$ luajit -jv x.lua
+[TRACE   1 x.lua:2]
+[TRACE   2 (1/3) x.lua:1 -> 1]
+
+$ gdb --quiet --args luajit x.lua
+(gdb) tbreak TRACE_1
+Function "TRACE_1" not defined.
+Temporary breakpoint 1 (TRACE_1) pending.
+(gdb) run
+Starting program: luajit x.lua
+
+Temporary breakpoint 1, TRACE_1 () at x.lua:2
+2	  for inner=1,100 do end
+(gdb) list
+1	for outer=1,100 do
+2	  for inner=1,100 do end
+3	end
+(gdb) bt
+#0  TRACE_1 () at x.lua:2
+#1  0x08053690 in lua_pcall [...]
+[...]
+#7  0x0806ff90 in main [...]
+(gdb) disass TRACE_1
+Dump of assembler code for function TRACE_1:
+0xf7fd9fba <TRACE_1+0>:	mov    DWORD PTR ds:0xf7e0e2a0,0x1
+0xf7fd9fc4 <TRACE_1+10>:	movsd  xmm7,QWORD PTR [edx+0x20]
+[...]
+0xf7fd9ff8 <TRACE_1+62>:	jmp    0xf7fd2014
+End of assembler dump.
+(gdb) tbreak TRACE_2
+Function "TRACE_2" not defined.
+Temporary breakpoint 2 (TRACE_2) pending.
+(gdb) cont
+Continuing.
+
+Temporary breakpoint 2, TRACE_2 () at x.lua:1
+1	for outer=1,100 do
+(gdb) info frame
+Stack level 0, frame at 0xffffd7c0:
+ eip = 0xf7fd9f60 in TRACE_2 (x.lua:1); saved eip 0x8053690
+ called by frame at 0xffffd7e0
+ source language unknown.
+ Arglist at 0xffffd78c, args:
+ Locals at 0xffffd78c, Previous frame's sp is 0xffffd7c0
+ Saved registers:
+  ebx at 0xffffd7ac, ebp at 0xffffd7b8, esi at 0xffffd7b0, edi at 0xffffd7b4,
+  eip at 0xffffd7bc
+(gdb)
+
+** ------------------------------------------------------------------------
+*/
+
+/* -- GDB JIT API --------------------------------------------------------- */
+
+/* GDB JIT actions. */
+enum {
+  GDBJIT_NOACTION = 0,
+  GDBJIT_REGISTER,
+  GDBJIT_UNREGISTER
+};
+
+/* GDB JIT entry. */
+typedef struct GDBJITentry {
+  struct GDBJITentry *next_entry;
+  struct GDBJITentry *prev_entry;
+  const char *symfile_addr;
+  uint64_t symfile_size;
+} GDBJITentry;
+
+/* GDB JIT descriptor. */
+typedef struct GDBJITdesc {
+  uint32_t version;
+  uint32_t action_flag;
+  GDBJITentry *relevant_entry;
+  GDBJITentry *first_entry;
+} GDBJITdesc;
+
+GDBJITdesc __jit_debug_descriptor = {
+  1, GDBJIT_NOACTION, NULL, NULL
+};
+
+/* GDB sets a breakpoint at this function. */
+void LJ_NOINLINE __jit_debug_register_code()
+{
+  __asm__ __volatile__("");
+};
+
+/* -- In-memory ELF object definitions ------------------------------------ */
+
+/* ELF definitions. */
+typedef struct ELFheader {
+  uint8_t emagic[4];
+  uint8_t eclass;
+  uint8_t eendian;
+  uint8_t eversion;
+  uint8_t eosabi;
+  uint8_t eabiversion;
+  uint8_t epad[7];
+  uint16_t type;
+  uint16_t machine;
+  uint32_t version;
+  uintptr_t entry;
+  uintptr_t phofs;
+  uintptr_t shofs;
+  uint32_t flags;
+  uint16_t ehsize;
+  uint16_t phentsize;
+  uint16_t phnum;
+  uint16_t shentsize;
+  uint16_t shnum;
+  uint16_t shstridx;
+} ELFheader;
+
+typedef struct ELFsectheader {
+  uint32_t name;
+  uint32_t type;
+  uintptr_t flags;
+  uintptr_t addr;
+  uintptr_t ofs;
+  uintptr_t size;
+  uint32_t link;
+  uint32_t info;
+  uintptr_t align;
+  uintptr_t entsize;
+} ELFsectheader;
+
+#define ELFSECT_IDX_ABS		0xfff1
+
+enum {
+  ELFSECT_TYPE_PROGBITS = 1,
+  ELFSECT_TYPE_SYMTAB = 2,
+  ELFSECT_TYPE_STRTAB = 3,
+  ELFSECT_TYPE_NOBITS = 8
+};
+
+#define ELFSECT_FLAGS_WRITE	1
+#define ELFSECT_FLAGS_ALLOC	2
+#define ELFSECT_FLAGS_EXEC	4
+
+typedef struct ELFsymbol {
+#if LJ_64
+  uint32_t name;
+  uint8_t info;
+  uint8_t other;
+  uint16_t sectidx;
+  uintptr_t value;
+  uint64_t size;
+#else
+  uint32_t name;
+  uintptr_t value;
+  uint32_t size;
+  uint8_t info;
+  uint8_t other;
+  uint16_t sectidx;
+#endif
+} ELFsymbol;
+
+enum {
+  ELFSYM_TYPE_FUNC = 2,
+  ELFSYM_TYPE_FILE = 4,
+  ELFSYM_BIND_LOCAL = 0 << 4,
+  ELFSYM_BIND_GLOBAL = 1 << 4,
+};
+
+/* DWARF definitions. */
+#define DW_CIE_VERSION	1
+
+enum {
+  DW_CFA_nop = 0x0,
+  DW_CFA_offset_extended = 0x5,
+  DW_CFA_def_cfa = 0xc,
+  DW_CFA_def_cfa_offset = 0xe,
+  DW_CFA_offset_extended_sf = 0x11,
+  DW_CFA_advance_loc = 0x40,
+  DW_CFA_offset = 0x80
+};
+
+enum {
+  DW_EH_PE_udata4 = 3,
+  DW_EH_PE_textrel = 0x20
+};
+
+enum {
+  DW_TAG_compile_unit = 0x11
+};
+
+enum {
+  DW_children_no = 0,
+  DW_children_yes = 1
+};
+
+enum {
+  DW_AT_name = 0x03,
+  DW_AT_stmt_list = 0x10,
+  DW_AT_low_pc = 0x11,
+  DW_AT_high_pc = 0x12
+};
+
+enum {
+  DW_FORM_addr = 0x01,
+  DW_FORM_data4 = 0x06,
+  DW_FORM_string = 0x08
+};
+
+enum {
+  DW_LNS_extended_op = 0,
+  DW_LNS_copy = 1,
+  DW_LNS_advance_pc = 2,
+  DW_LNS_advance_line = 3
+};
+
+enum {
+  DW_LNE_end_sequence = 1,
+  DW_LNE_set_address = 2
+};
+
+enum {
+#if LJ_TARGET_X86
+  DW_REG_AX, DW_REG_CX, DW_REG_DX, DW_REG_BX,
+  DW_REG_SP, DW_REG_BP, DW_REG_SI, DW_REG_DI,
+  DW_REG_RA,
+#elif LJ_TARGET_X64
+  /* Yes, the order is strange, but correct. */
+  DW_REG_AX, DW_REG_DX, DW_REG_CX, DW_REG_BX,
+  DW_REG_SI, DW_REG_DI, DW_REG_BP, DW_REG_SP,
+  DW_REG_8, DW_REG_9, DW_REG_10, DW_REG_11,
+  DW_REG_12, DW_REG_13, DW_REG_14, DW_REG_15,
+  DW_REG_RA,
+#elif LJ_TARGET_ARM
+  DW_REG_SP = 13,
+  DW_REG_RA = 14,
+#elif LJ_TARGET_ARM64
+  DW_REG_SP = 31,
+  DW_REG_RA = 30,
+#elif LJ_TARGET_PPC
+  DW_REG_SP = 1,
+  DW_REG_RA = 65,
+  DW_REG_CR = 70,
+#elif LJ_TARGET_MIPS
+  DW_REG_SP = 29,
+  DW_REG_RA = 31,
+#else
+#error "Unsupported target architecture"
+#endif
+};
+
+/* Minimal list of sections for the in-memory ELF object. */
+enum {
+  GDBJIT_SECT_NULL,
+  GDBJIT_SECT_text,
+  GDBJIT_SECT_eh_frame,
+  GDBJIT_SECT_shstrtab,
+  GDBJIT_SECT_strtab,
+  GDBJIT_SECT_symtab,
+  GDBJIT_SECT_debug_info,
+  GDBJIT_SECT_debug_abbrev,
+  GDBJIT_SECT_debug_line,
+  GDBJIT_SECT__MAX
+};
+
+enum {
+  GDBJIT_SYM_UNDEF,
+  GDBJIT_SYM_FILE,
+  GDBJIT_SYM_FUNC,
+  GDBJIT_SYM__MAX
+};
+
+/* In-memory ELF object. */
+typedef struct GDBJITobj {
+  ELFheader hdr;			/* ELF header. */
+  ELFsectheader sect[GDBJIT_SECT__MAX];	/* ELF sections. */
+  ELFsymbol sym[GDBJIT_SYM__MAX];	/* ELF symbol table. */
+  uint8_t space[4096];			/* Space for various section data. */
+} GDBJITobj;
+
+/* Combined structure for GDB JIT entry and ELF object. */
+typedef struct GDBJITentryobj {
+  GDBJITentry entry;
+  size_t sz;
+  GDBJITobj obj;
+} GDBJITentryobj;
+
+/* Template for in-memory ELF header. */
+static const ELFheader elfhdr_template = {
+  .emagic = { 0x7f, 'E', 'L', 'F' },
+  .eclass = LJ_64 ? 2 : 1,
+  .eendian = LJ_ENDIAN_SELECT(1, 2),
+  .eversion = 1,
+#if LJ_TARGET_LINUX
+  .eosabi = 0,  /* Nope, it's not 3. */
+#elif defined(__FreeBSD__)
+  .eosabi = 9,
+#elif defined(__NetBSD__)
+  .eosabi = 2,
+#elif defined(__OpenBSD__)
+  .eosabi = 12,
+#elif defined(__DragonFly__)
+  .eosabi = 0,
+#elif LJ_TARGET_SOLARIS
+  .eosabi = 6,
+#else
+  .eosabi = 0,
+#endif
+  .eabiversion = 0,
+  .epad = { 0, 0, 0, 0, 0, 0, 0 },
+  .type = 1,
+#if LJ_TARGET_X86
+  .machine = 3,
+#elif LJ_TARGET_X64
+  .machine = 62,
+#elif LJ_TARGET_ARM
+  .machine = 40,
+#elif LJ_TARGET_ARM64
+  .machine = 183,
+#elif LJ_TARGET_PPC
+  .machine = 20,
+#elif LJ_TARGET_MIPS
+  .machine = 8,
+#else
+#error "Unsupported target architecture"
+#endif
+  .version = 1,
+  .entry = 0,
+  .phofs = 0,
+  .shofs = offsetof(GDBJITobj, sect),
+  .flags = 0,
+  .ehsize = sizeof(ELFheader),
+  .phentsize = 0,
+  .phnum = 0,
+  .shentsize = sizeof(ELFsectheader),
+  .shnum = GDBJIT_SECT__MAX,
+  .shstridx = GDBJIT_SECT_shstrtab
+};
+
+/* -- In-memory ELF object generation ------------------------------------- */
+
+/* Context for generating the ELF object for the GDB JIT API. */
+typedef struct GDBJITctx {
+  uint8_t *p;		/* Pointer to next address in obj.space. */
+  uint8_t *startp;	/* Pointer to start address in obj.space. */
+  GCtrace *T;		/* Generate symbols for this trace. */
+  uintptr_t mcaddr;	/* Machine code address. */
+  MSize szmcode;	/* Size of machine code. */
+  MSize spadjp;		/* Stack adjustment for parent trace or interpreter. */
+  MSize spadj;		/* Stack adjustment for trace itself. */
+  BCLine lineno;	/* Starting line number. */
+  const char *filename;	/* Starting file name. */
+  size_t objsize;	/* Final size of ELF object. */
+  GDBJITobj obj;	/* In-memory ELF object. */
+} GDBJITctx;
+
+/* Add a zero-terminated string. */
+static uint32_t gdbjit_strz(GDBJITctx *ctx, const char *str)
+{
+  uint8_t *p = ctx->p;
+  uint32_t ofs = (uint32_t)(p - ctx->startp);
+  do {
+    *p++ = (uint8_t)*str;
+  } while (*str++);
+  ctx->p = p;
+  return ofs;
+}
+
+/* Append a decimal number. */
+static void gdbjit_catnum(GDBJITctx *ctx, uint32_t n)
+{
+  if (n >= 10) { uint32_t m = n / 10; n = n % 10; gdbjit_catnum(ctx, m); }
+  *ctx->p++ = '0' + n;
+}
+
+/* Add a SLEB128 value. */
+static void gdbjit_sleb128(GDBJITctx *ctx, int32_t v)
+{
+  uint8_t *p = ctx->p;
+  for (; (uint32_t)(v+0x40) >= 0x80; v >>= 7)
+    *p++ = (uint8_t)((v & 0x7f) | 0x80);
+  *p++ = (uint8_t)(v & 0x7f);
+  ctx->p = p;
+}
+
+/* Shortcuts to generate DWARF structures. */
+#define DB(x)		(*p++ = (x))
+#define DI8(x)		(*(int8_t *)p = (x), p++)
+#define DU16(x)		(*(uint16_t *)p = (x), p += 2)
+#define DU32(x)		(*(uint32_t *)p = (x), p += 4)
+#define DADDR(x)	(*(uintptr_t *)p = (x), p += sizeof(uintptr_t))
+#define DUV(x)		(p = (uint8_t *)lj_strfmt_wuleb128((char *)p, (x)))
+#define DSV(x)		(ctx->p = p, gdbjit_sleb128(ctx, (x)), p = ctx->p)
+#define DSTR(str)	(ctx->p = p, gdbjit_strz(ctx, (str)), p = ctx->p)
+#define DALIGNNOP(s)	while ((uintptr_t)p & ((s)-1)) *p++ = DW_CFA_nop
+#define DSECT(name, stmt) \
+  { uint32_t *szp_##name = (uint32_t *)p; p += 4; stmt \
+    *szp_##name = (uint32_t)((p-(uint8_t *)szp_##name)-4); } \
+
+/* Initialize ELF section headers. */
+static void LJ_FASTCALL gdbjit_secthdr(GDBJITctx *ctx)
+{
+  ELFsectheader *sect;
+
+  *ctx->p++ = '\0';  /* Empty string at start of string table. */
+
+#define SECTDEF(id, tp, al) \
+  sect = &ctx->obj.sect[GDBJIT_SECT_##id]; \
+  sect->name = gdbjit_strz(ctx, "." #id); \
+  sect->type = ELFSECT_TYPE_##tp; \
+  sect->align = (al)
+
+  SECTDEF(text, NOBITS, 16);
+  sect->flags = ELFSECT_FLAGS_ALLOC|ELFSECT_FLAGS_EXEC;
+  sect->addr = ctx->mcaddr;
+  sect->ofs = 0;
+  sect->size = ctx->szmcode;
+
+  SECTDEF(eh_frame, PROGBITS, sizeof(uintptr_t));
+  sect->flags = ELFSECT_FLAGS_ALLOC;
+
+  SECTDEF(shstrtab, STRTAB, 1);
+  SECTDEF(strtab, STRTAB, 1);
+
+  SECTDEF(symtab, SYMTAB, sizeof(uintptr_t));
+  sect->ofs = offsetof(GDBJITobj, sym);
+  sect->size = sizeof(ctx->obj.sym);
+  sect->link = GDBJIT_SECT_strtab;
+  sect->entsize = sizeof(ELFsymbol);
+  sect->info = GDBJIT_SYM_FUNC;
+
+  SECTDEF(debug_info, PROGBITS, 1);
+  SECTDEF(debug_abbrev, PROGBITS, 1);
+  SECTDEF(debug_line, PROGBITS, 1);
+
+#undef SECTDEF
+}
+
+/* Initialize symbol table. */
+static void LJ_FASTCALL gdbjit_symtab(GDBJITctx *ctx)
+{
+  ELFsymbol *sym;
+
+  *ctx->p++ = '\0';  /* Empty string at start of string table. */
+
+  sym = &ctx->obj.sym[GDBJIT_SYM_FILE];
+  sym->name = gdbjit_strz(ctx, "JIT mcode");
+  sym->sectidx = ELFSECT_IDX_ABS;
+  sym->info = ELFSYM_TYPE_FILE|ELFSYM_BIND_LOCAL;
+
+  sym = &ctx->obj.sym[GDBJIT_SYM_FUNC];
+  sym->name = gdbjit_strz(ctx, "TRACE_"); ctx->p--;
+  gdbjit_catnum(ctx, ctx->T->traceno); *ctx->p++ = '\0';
+  sym->sectidx = GDBJIT_SECT_text;
+  sym->value = 0;
+  sym->size = ctx->szmcode;
+  sym->info = ELFSYM_TYPE_FUNC|ELFSYM_BIND_GLOBAL;
+}
+
+/* Initialize .eh_frame section. */
+static void LJ_FASTCALL gdbjit_ehframe(GDBJITctx *ctx)
+{
+  uint8_t *p = ctx->p;
+  uint8_t *framep = p;
+
+  /* Emit DWARF EH CIE. */
+  DSECT(CIE,
+    DU32(0);			/* Offset to CIE itself. */
+    DB(DW_CIE_VERSION);
+    DSTR("zR");			/* Augmentation. */
+    DUV(1);			/* Code alignment factor. */
+    DSV(-(int32_t)sizeof(uintptr_t));  /* Data alignment factor. */
+    DB(DW_REG_RA);		/* Return address register. */
+    DB(1); DB(DW_EH_PE_textrel|DW_EH_PE_udata4);  /* Augmentation data. */
+    DB(DW_CFA_def_cfa); DUV(DW_REG_SP); DUV(sizeof(uintptr_t));
+#if LJ_TARGET_PPC
+    DB(DW_CFA_offset_extended_sf); DB(DW_REG_RA); DSV(-1);
+#else
+    DB(DW_CFA_offset|DW_REG_RA); DUV(1);
+#endif
+    DALIGNNOP(sizeof(uintptr_t));
+  )
+
+  /* Emit DWARF EH FDE. */
+  DSECT(FDE,
+    DU32((uint32_t)(p-framep));	/* Offset to CIE. */
+    DU32(0);			/* Machine code offset relative to .text. */
+    DU32(ctx->szmcode);		/* Machine code length. */
+    DB(0);			/* Augmentation data. */
+    /* Registers saved in CFRAME. */
+#if LJ_TARGET_X86
+    DB(DW_CFA_offset|DW_REG_BP); DUV(2);
+    DB(DW_CFA_offset|DW_REG_DI); DUV(3);
+    DB(DW_CFA_offset|DW_REG_SI); DUV(4);
+    DB(DW_CFA_offset|DW_REG_BX); DUV(5);
+#elif LJ_TARGET_X64
+    DB(DW_CFA_offset|DW_REG_BP); DUV(2);
+    DB(DW_CFA_offset|DW_REG_BX); DUV(3);
+    DB(DW_CFA_offset|DW_REG_15); DUV(4);
+    DB(DW_CFA_offset|DW_REG_14); DUV(5);
+    /* Extra registers saved for JIT-compiled code. */
+    DB(DW_CFA_offset|DW_REG_13); DUV(LJ_GC64 ? 10 : 9);
+    DB(DW_CFA_offset|DW_REG_12); DUV(LJ_GC64 ? 11 : 10);
+#elif LJ_TARGET_ARM
+    {
+      int i;
+      for (i = 11; i >= 4; i--) { DB(DW_CFA_offset|i); DUV(2+(11-i)); }
+    }
+#elif LJ_TARGET_ARM64
+    {
+      int i;
+      DB(DW_CFA_offset|31); DUV(2);
+      for (i = 28; i >= 19; i--) { DB(DW_CFA_offset|i); DUV(3+(28-i)); }
+      for (i = 15; i >= 8; i--) { DB(DW_CFA_offset|32|i); DUV(28-i); }
+    }
+#elif LJ_TARGET_PPC
+    {
+      int i;
+      DB(DW_CFA_offset_extended); DB(DW_REG_CR); DUV(55);
+      for (i = 14; i <= 31; i++) {
+	DB(DW_CFA_offset|i); DUV(37+(31-i));
+	DB(DW_CFA_offset|32|i); DUV(2+2*(31-i));
+      }
+    }
+#elif LJ_TARGET_MIPS
+    {
+      int i;
+      DB(DW_CFA_offset|30); DUV(2);
+      for (i = 23; i >= 16; i--) { DB(DW_CFA_offset|i); DUV(26-i); }
+      for (i = 30; i >= 20; i -= 2) { DB(DW_CFA_offset|32|i); DUV(42-i); }
+    }
+#else
+#error "Unsupported target architecture"
+#endif
+    if (ctx->spadjp != ctx->spadj) {  /* Parent/interpreter stack frame size. */
+      DB(DW_CFA_def_cfa_offset); DUV(ctx->spadjp);
+      DB(DW_CFA_advance_loc|1);  /* Only an approximation. */
+    }
+    DB(DW_CFA_def_cfa_offset); DUV(ctx->spadj);  /* Trace stack frame size. */
+    DALIGNNOP(sizeof(uintptr_t));
+  )
+
+  ctx->p = p;
+}
+
+/* Initialize .debug_info section. */
+static void LJ_FASTCALL gdbjit_debuginfo(GDBJITctx *ctx)
+{
+  uint8_t *p = ctx->p;
+
+  DSECT(info,
+    DU16(2);			/* DWARF version. */
+    DU32(0);			/* Abbrev offset. */
+    DB(sizeof(uintptr_t));	/* Pointer size. */
+
+    DUV(1);			/* Abbrev #1: DW_TAG_compile_unit. */
+    DSTR(ctx->filename);	/* DW_AT_name. */
+    DADDR(ctx->mcaddr);		/* DW_AT_low_pc. */
+    DADDR(ctx->mcaddr + ctx->szmcode);  /* DW_AT_high_pc. */
+    DU32(0);			/* DW_AT_stmt_list. */
+  )
+
+  ctx->p = p;
+}
+
+/* Initialize .debug_abbrev section. */
+static void LJ_FASTCALL gdbjit_debugabbrev(GDBJITctx *ctx)
+{
+  uint8_t *p = ctx->p;
+
+  /* Abbrev #1: DW_TAG_compile_unit. */
+  DUV(1); DUV(DW_TAG_compile_unit);
+  DB(DW_children_no);
+  DUV(DW_AT_name);	DUV(DW_FORM_string);
+  DUV(DW_AT_low_pc);	DUV(DW_FORM_addr);
+  DUV(DW_AT_high_pc);	DUV(DW_FORM_addr);
+  DUV(DW_AT_stmt_list);	DUV(DW_FORM_data4);
+  DB(0); DB(0);
+
+  ctx->p = p;
+}
+
+#define DLNE(op, s)	(DB(DW_LNS_extended_op), DUV(1+(s)), DB((op)))
+
+/* Initialize .debug_line section. */
+static void LJ_FASTCALL gdbjit_debugline(GDBJITctx *ctx)
+{
+  uint8_t *p = ctx->p;
+
+  DSECT(line,
+    DU16(2);			/* DWARF version. */
+    DSECT(header,
+      DB(1);			/* Minimum instruction length. */
+      DB(1);			/* is_stmt. */
+      DI8(0);			/* Line base for special opcodes. */
+      DB(2);			/* Line range for special opcodes. */
+      DB(3+1);			/* Opcode base at DW_LNS_advance_line+1. */
+      DB(0); DB(1); DB(1);	/* Standard opcode lengths. */
+      /* Directory table. */
+      DB(0);
+      /* File name table. */
+      DSTR(ctx->filename); DUV(0); DUV(0); DUV(0);
+      DB(0);
+    )
+
+    DLNE(DW_LNE_set_address, sizeof(uintptr_t)); DADDR(ctx->mcaddr);
+    if (ctx->lineno) {
+      DB(DW_LNS_advance_line); DSV(ctx->lineno-1);
+    }
+    DB(DW_LNS_copy);
+    DB(DW_LNS_advance_pc); DUV(ctx->szmcode);
+    DLNE(DW_LNE_end_sequence, 0);
+  )
+
+  ctx->p = p;
+}
+
+#undef DLNE
+
+/* Undef shortcuts. */
+#undef DB
+#undef DI8
+#undef DU16
+#undef DU32
+#undef DADDR
+#undef DUV
+#undef DSV
+#undef DSTR
+#undef DALIGNNOP
+#undef DSECT
+
+/* Type of a section initializer callback. */
+typedef void (LJ_FASTCALL *GDBJITinitf)(GDBJITctx *ctx);
+
+/* Call section initializer and set the section offset and size. */
+static void gdbjit_initsect(GDBJITctx *ctx, int sect, GDBJITinitf initf)
+{
+  ctx->startp = ctx->p;
+  ctx->obj.sect[sect].ofs = (uintptr_t)((char *)ctx->p - (char *)&ctx->obj);
+  initf(ctx);
+  ctx->obj.sect[sect].size = (uintptr_t)(ctx->p - ctx->startp);
+}
+
+#define SECTALIGN(p, a) \
+  ((p) = (uint8_t *)(((uintptr_t)(p) + ((a)-1)) & ~(uintptr_t)((a)-1)))
+
+/* Build in-memory ELF object. */
+static void gdbjit_buildobj(GDBJITctx *ctx)
+{
+  GDBJITobj *obj = &ctx->obj;
+  /* Fill in ELF header and clear structures. */
+  memcpy(&obj->hdr, &elfhdr_template, sizeof(ELFheader));
+  memset(&obj->sect, 0, sizeof(ELFsectheader)*GDBJIT_SECT__MAX);
+  memset(&obj->sym, 0, sizeof(ELFsymbol)*GDBJIT_SYM__MAX);
+  /* Initialize sections. */
+  ctx->p = obj->space;
+  gdbjit_initsect(ctx, GDBJIT_SECT_shstrtab, gdbjit_secthdr);
+  gdbjit_initsect(ctx, GDBJIT_SECT_strtab, gdbjit_symtab);
+  gdbjit_initsect(ctx, GDBJIT_SECT_debug_info, gdbjit_debuginfo);
+  gdbjit_initsect(ctx, GDBJIT_SECT_debug_abbrev, gdbjit_debugabbrev);
+  gdbjit_initsect(ctx, GDBJIT_SECT_debug_line, gdbjit_debugline);
+  SECTALIGN(ctx->p, sizeof(uintptr_t));
+  gdbjit_initsect(ctx, GDBJIT_SECT_eh_frame, gdbjit_ehframe);
+  ctx->objsize = (size_t)((char *)ctx->p - (char *)obj);
+  lj_assertX(ctx->objsize < sizeof(GDBJITobj), "GDBJITobj overflow");
+}
+
+#undef SECTALIGN
+
+/* -- Interface to GDB JIT API -------------------------------------------- */
+
+static int gdbjit_lock;
+
+static void gdbjit_lock_acquire()
+{
+  while (__sync_lock_test_and_set(&gdbjit_lock, 1)) {
+    /* Just spin; futexes or pthreads aren't worth the portability cost. */
+  }
+}
+
+static void gdbjit_lock_release()
+{
+  __sync_lock_release(&gdbjit_lock);
+}
+
+/* Add new entry to GDB JIT symbol chain. */
+static void gdbjit_newentry(lua_State *L, GDBJITctx *ctx)
+{
+  /* Allocate memory for GDB JIT entry and ELF object. */
+  MSize sz = (MSize)(sizeof(GDBJITentryobj) - sizeof(GDBJITobj) + ctx->objsize);
+  GDBJITentryobj *eo = lj_mem_newt(L, sz, GDBJITentryobj);
+  memcpy(&eo->obj, &ctx->obj, ctx->objsize);  /* Copy ELF object. */
+  eo->sz = sz;
+  ctx->T->gdbjit_entry = (void *)eo;
+  /* Link new entry to chain and register it. */
+  eo->entry.prev_entry = NULL;
+  gdbjit_lock_acquire();
+  eo->entry.next_entry = __jit_debug_descriptor.first_entry;
+  if (eo->entry.next_entry)
+    eo->entry.next_entry->prev_entry = &eo->entry;
+  eo->entry.symfile_addr = (const char *)&eo->obj;
+  eo->entry.symfile_size = ctx->objsize;
+  __jit_debug_descriptor.first_entry = &eo->entry;
+  __jit_debug_descriptor.relevant_entry = &eo->entry;
+  __jit_debug_descriptor.action_flag = GDBJIT_REGISTER;
+  __jit_debug_register_code();
+  gdbjit_lock_release();
+}
+
+/* Add debug info for newly compiled trace and notify GDB. */
+void lj_gdbjit_addtrace(jit_State *J, GCtrace *T)
+{
+  GDBJITctx ctx;
+  GCproto *pt = &gcref(T->startpt)->pt;
+  TraceNo parent = T->ir[REF_BASE].op1;
+  const BCIns *startpc = mref(T->startpc, const BCIns);
+  ctx.T = T;
+  ctx.mcaddr = (uintptr_t)T->mcode;
+  ctx.szmcode = T->szmcode;
+  ctx.spadjp = CFRAME_SIZE_JIT +
+	       (MSize)(parent ? traceref(J, parent)->spadjust : 0);
+  ctx.spadj = CFRAME_SIZE_JIT + T->spadjust;
+  lj_assertJ(startpc >= proto_bc(pt) && startpc < proto_bc(pt) + pt->sizebc,
+	     "start PC out of range");
+  ctx.lineno = lj_debug_line(pt, proto_bcpos(pt, startpc));
+  ctx.filename = proto_chunknamestr(pt);
+  if (*ctx.filename == '@' || *ctx.filename == '=')
+    ctx.filename++;
+  else
+    ctx.filename = "(string)";
+  gdbjit_buildobj(&ctx);
+  gdbjit_newentry(J->L, &ctx);
+}
+
+/* Delete debug info for trace and notify GDB. */
+void lj_gdbjit_deltrace(jit_State *J, GCtrace *T)
+{
+  GDBJITentryobj *eo = (GDBJITentryobj *)T->gdbjit_entry;
+  if (eo) {
+    gdbjit_lock_acquire();
+    if (eo->entry.prev_entry)
+      eo->entry.prev_entry->next_entry = eo->entry.next_entry;
+    else
+      __jit_debug_descriptor.first_entry = eo->entry.next_entry;
+    if (eo->entry.next_entry)
+      eo->entry.next_entry->prev_entry = eo->entry.prev_entry;
+    __jit_debug_descriptor.relevant_entry = &eo->entry;
+    __jit_debug_descriptor.action_flag = GDBJIT_UNREGISTER;
+    __jit_debug_register_code();
+    gdbjit_lock_release();
+    lj_mem_free(J2G(J), eo, eo->sz);
+  }
+}
+
+#endif
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_gdbjit.h b/libs/luajit-cmake/luajit/src/lj_gdbjit.h
new file mode 100644
index 0000000..f531be6
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_gdbjit.h
@@ -0,0 +1,22 @@
+/*
+** Client for the GDB JIT API.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_GDBJIT_H
+#define _LJ_GDBJIT_H
+
+#include "lj_obj.h"
+#include "lj_jit.h"
+
+#if LJ_HASJIT && defined(LUAJIT_USE_GDBJIT)
+
+LJ_FUNC void lj_gdbjit_addtrace(jit_State *J, GCtrace *T);
+LJ_FUNC void lj_gdbjit_deltrace(jit_State *J, GCtrace *T);
+
+#else
+#define lj_gdbjit_addtrace(J, T)	UNUSED(T)
+#define lj_gdbjit_deltrace(J, T)	UNUSED(T)
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_ir.c b/libs/luajit-cmake/luajit/src/lj_ir.c
new file mode 100644
index 0000000..6590151
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_ir.c
@@ -0,0 +1,500 @@
+/*
+** SSA IR (Intermediate Representation) emitter.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_ir_c
+#define LUA_CORE
+
+/* For pointers to libc/libm functions. */
+#include <stdio.h>
+#include <math.h>
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_gc.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_ircall.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#include "lj_carith.h"
+#endif
+#include "lj_vm.h"
+#include "lj_strscan.h"
+#include "lj_serialize.h"
+#include "lj_strfmt.h"
+#include "lj_prng.h"
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)			(&J->cur.ir[(ref)])
+#define fins			(&J->fold.ins)
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+/* -- IR tables ----------------------------------------------------------- */
+
+/* IR instruction modes. */
+LJ_DATADEF const uint8_t lj_ir_mode[IR__MAX+1] = {
+IRDEF(IRMODE)
+  0
+};
+
+/* IR type sizes. */
+LJ_DATADEF const uint8_t lj_ir_type_size[IRT__MAX+1] = {
+#define IRTSIZE(name, size)	size,
+IRTDEF(IRTSIZE)
+#undef IRTSIZE
+  0
+};
+
+/* C call info for CALL* instructions. */
+LJ_DATADEF const CCallInfo lj_ir_callinfo[] = {
+#define IRCALLCI(cond, name, nargs, kind, type, flags) \
+  { (ASMFunction)IRCALLCOND_##cond(name), \
+    (nargs)|(CCI_CALL_##kind)|(IRT_##type<<CCI_OTSHIFT)|(flags) },
+IRCALLDEF(IRCALLCI)
+#undef IRCALLCI
+  { NULL, 0 }
+};
+
+/* -- IR emitter ---------------------------------------------------------- */
+
+/* Grow IR buffer at the top. */
+void LJ_FASTCALL lj_ir_growtop(jit_State *J)
+{
+  IRIns *baseir = J->irbuf + J->irbotlim;
+  MSize szins = J->irtoplim - J->irbotlim;
+  if (szins) {
+    baseir = (IRIns *)lj_mem_realloc(J->L, baseir, szins*sizeof(IRIns),
+				     2*szins*sizeof(IRIns));
+    J->irtoplim = J->irbotlim + 2*szins;
+  } else {
+    baseir = (IRIns *)lj_mem_realloc(J->L, NULL, 0, LJ_MIN_IRSZ*sizeof(IRIns));
+    J->irbotlim = REF_BASE - LJ_MIN_IRSZ/4;
+    J->irtoplim = J->irbotlim + LJ_MIN_IRSZ;
+  }
+  J->cur.ir = J->irbuf = baseir - J->irbotlim;
+}
+
+/* Grow IR buffer at the bottom or shift it up. */
+static void lj_ir_growbot(jit_State *J)
+{
+  IRIns *baseir = J->irbuf + J->irbotlim;
+  MSize szins = J->irtoplim - J->irbotlim;
+  lj_assertJ(szins != 0, "zero IR size");
+  lj_assertJ(J->cur.nk == J->irbotlim || J->cur.nk-1 == J->irbotlim,
+	     "unexpected IR growth");
+  if (J->cur.nins + (szins >> 1) < J->irtoplim) {
+    /* More than half of the buffer is free on top: shift up by a quarter. */
+    MSize ofs = szins >> 2;
+    memmove(baseir + ofs, baseir, (J->cur.nins - J->irbotlim)*sizeof(IRIns));
+    J->irbotlim -= ofs;
+    J->irtoplim -= ofs;
+    J->cur.ir = J->irbuf = baseir - J->irbotlim;
+  } else {
+    /* Double the buffer size, but split the growth amongst top/bottom. */
+    IRIns *newbase = lj_mem_newt(J->L, 2*szins*sizeof(IRIns), IRIns);
+    MSize ofs = szins >= 256 ? 128 : (szins >> 1);  /* Limit bottom growth. */
+    memcpy(newbase + ofs, baseir, (J->cur.nins - J->irbotlim)*sizeof(IRIns));
+    lj_mem_free(G(J->L), baseir, szins*sizeof(IRIns));
+    J->irbotlim -= ofs;
+    J->irtoplim = J->irbotlim + 2*szins;
+    J->cur.ir = J->irbuf = newbase - J->irbotlim;
+  }
+}
+
+/* Emit IR without any optimizations. */
+TRef LJ_FASTCALL lj_ir_emit(jit_State *J)
+{
+  IRRef ref = lj_ir_nextins(J);
+  IRIns *ir = IR(ref);
+  IROp op = fins->o;
+  ir->prev = J->chain[op];
+  J->chain[op] = (IRRef1)ref;
+  ir->o = op;
+  ir->op1 = fins->op1;
+  ir->op2 = fins->op2;
+  J->guardemit.irt |= fins->t.irt;
+  return TREF(ref, irt_t((ir->t = fins->t)));
+}
+
+/* Emit call to a C function. */
+TRef lj_ir_call(jit_State *J, IRCallID id, ...)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[id];
+  uint32_t n = CCI_NARGS(ci);
+  TRef tr = TREF_NIL;
+  va_list argp;
+  va_start(argp, id);
+  if ((ci->flags & CCI_L)) n--;
+  if (n > 0)
+    tr = va_arg(argp, IRRef);
+  while (n-- > 1)
+    tr = emitir(IRT(IR_CARG, IRT_NIL), tr, va_arg(argp, IRRef));
+  va_end(argp);
+  if (CCI_OP(ci) == IR_CALLS)
+    J->needsnap = 1;  /* Need snapshot after call with side effect. */
+  return emitir(CCI_OPTYPE(ci), tr, id);
+}
+
+/* Load field of type t from GG_State + offset. Must be 32 bit aligned. */
+TRef lj_ir_ggfload(jit_State *J, IRType t, uintptr_t ofs)
+{
+  lj_assertJ((ofs & 3) == 0, "unaligned GG_State field offset");
+  ofs >>= 2;
+  lj_assertJ(ofs >= IRFL__MAX && ofs <= 0x3ff,
+	     "GG_State field offset breaks 10 bit FOLD key limit");
+  lj_ir_set(J, IRT(IR_FLOAD, t), REF_NIL, ofs);
+  return lj_opt_fold(J);
+}
+
+/* -- Interning of constants ---------------------------------------------- */
+
+/*
+** IR instructions for constants are kept between J->cur.nk >= ref < REF_BIAS.
+** They are chained like all other instructions, but grow downwards.
+** The are interned (like strings in the VM) to facilitate reference
+** comparisons. The same constant must get the same reference.
+*/
+
+/* Get ref of next IR constant and optionally grow IR.
+** Note: this may invalidate all IRIns *!
+*/
+static LJ_AINLINE IRRef ir_nextk(jit_State *J)
+{
+  IRRef ref = J->cur.nk;
+  if (LJ_UNLIKELY(ref <= J->irbotlim)) lj_ir_growbot(J);
+  J->cur.nk = --ref;
+  return ref;
+}
+
+/* Get ref of next 64 bit IR constant and optionally grow IR.
+** Note: this may invalidate all IRIns *!
+*/
+static LJ_AINLINE IRRef ir_nextk64(jit_State *J)
+{
+  IRRef ref = J->cur.nk - 2;
+  lj_assertJ(J->state != LJ_TRACE_ASM, "bad JIT state");
+  if (LJ_UNLIKELY(ref < J->irbotlim)) lj_ir_growbot(J);
+  J->cur.nk = ref;
+  return ref;
+}
+
+#if LJ_GC64
+#define ir_nextkgc ir_nextk64
+#else
+#define ir_nextkgc ir_nextk
+#endif
+
+/* Intern int32_t constant. */
+TRef LJ_FASTCALL lj_ir_kint(jit_State *J, int32_t k)
+{
+  IRIns *ir, *cir = J->cur.ir;
+  IRRef ref;
+  for (ref = J->chain[IR_KINT]; ref; ref = cir[ref].prev)
+    if (cir[ref].i == k)
+      goto found;
+  ref = ir_nextk(J);
+  ir = IR(ref);
+  ir->i = k;
+  ir->t.irt = IRT_INT;
+  ir->o = IR_KINT;
+  ir->prev = J->chain[IR_KINT];
+  J->chain[IR_KINT] = (IRRef1)ref;
+found:
+  return TREF(ref, IRT_INT);
+}
+
+/* Intern 64 bit constant, given by its 64 bit pattern. */
+TRef lj_ir_k64(jit_State *J, IROp op, uint64_t u64)
+{
+  IRIns *ir, *cir = J->cur.ir;
+  IRRef ref;
+  IRType t = op == IR_KNUM ? IRT_NUM : IRT_I64;
+  for (ref = J->chain[op]; ref; ref = cir[ref].prev)
+    if (ir_k64(&cir[ref])->u64 == u64)
+      goto found;
+  ref = ir_nextk64(J);
+  ir = IR(ref);
+  ir[1].tv.u64 = u64;
+  ir->t.irt = t;
+  ir->o = op;
+  ir->op12 = 0;
+  ir->prev = J->chain[op];
+  J->chain[op] = (IRRef1)ref;
+found:
+  return TREF(ref, t);
+}
+
+/* Intern FP constant, given by its 64 bit pattern. */
+TRef lj_ir_knum_u64(jit_State *J, uint64_t u64)
+{
+  return lj_ir_k64(J, IR_KNUM, u64);
+}
+
+/* Intern 64 bit integer constant. */
+TRef lj_ir_kint64(jit_State *J, uint64_t u64)
+{
+  return lj_ir_k64(J, IR_KINT64, u64);
+}
+
+/* Check whether a number is int and return it. -0 is NOT considered an int. */
+static int numistrueint(lua_Number n, int32_t *kp)
+{
+  int32_t k = lj_num2int(n);
+  if (n == (lua_Number)k) {
+    if (kp) *kp = k;
+    if (k == 0) {  /* Special check for -0. */
+      TValue tv;
+      setnumV(&tv, n);
+      if (tv.u32.hi != 0)
+	return 0;
+    }
+    return 1;
+  }
+  return 0;
+}
+
+/* Intern number as int32_t constant if possible, otherwise as FP constant. */
+TRef lj_ir_knumint(jit_State *J, lua_Number n)
+{
+  int32_t k;
+  if (numistrueint(n, &k))
+    return lj_ir_kint(J, k);
+  else
+    return lj_ir_knum(J, n);
+}
+
+/* Intern GC object "constant". */
+TRef lj_ir_kgc(jit_State *J, GCobj *o, IRType t)
+{
+  IRIns *ir, *cir = J->cur.ir;
+  IRRef ref;
+  lj_assertJ(!isdead(J2G(J), o), "interning of dead GC object");
+  for (ref = J->chain[IR_KGC]; ref; ref = cir[ref].prev)
+    if (ir_kgc(&cir[ref]) == o)
+      goto found;
+  ref = ir_nextkgc(J);
+  ir = IR(ref);
+  /* NOBARRIER: Current trace is a GC root. */
+  ir->op12 = 0;
+  setgcref(ir[LJ_GC64].gcr, o);
+  ir->t.irt = (uint8_t)t;
+  ir->o = IR_KGC;
+  ir->prev = J->chain[IR_KGC];
+  J->chain[IR_KGC] = (IRRef1)ref;
+found:
+  return TREF(ref, t);
+}
+
+/* Allocate GCtrace constant placeholder (no interning). */
+TRef lj_ir_ktrace(jit_State *J)
+{
+  IRRef ref = ir_nextkgc(J);
+  IRIns *ir = IR(ref);
+  lj_assertJ(irt_toitype_(IRT_P64) == LJ_TTRACE, "mismatched type mapping");
+  ir->t.irt = IRT_P64;
+  ir->o = LJ_GC64 ? IR_KNUM : IR_KNULL;  /* Not IR_KGC yet, but same size. */
+  ir->op12 = 0;
+  ir->prev = 0;
+  return TREF(ref, IRT_P64);
+}
+
+/* Intern pointer constant. */
+TRef lj_ir_kptr_(jit_State *J, IROp op, void *ptr)
+{
+  IRIns *ir, *cir = J->cur.ir;
+  IRRef ref;
+#if LJ_64 && !LJ_GC64
+  lj_assertJ((void *)(uintptr_t)u32ptr(ptr) == ptr, "out-of-range GC pointer");
+#endif
+  for (ref = J->chain[op]; ref; ref = cir[ref].prev)
+    if (ir_kptr(&cir[ref]) == ptr)
+      goto found;
+#if LJ_GC64
+  ref = ir_nextk64(J);
+#else
+  ref = ir_nextk(J);
+#endif
+  ir = IR(ref);
+  ir->op12 = 0;
+  setmref(ir[LJ_GC64].ptr, ptr);
+  ir->t.irt = IRT_PGC;
+  ir->o = op;
+  ir->prev = J->chain[op];
+  J->chain[op] = (IRRef1)ref;
+found:
+  return TREF(ref, IRT_PGC);
+}
+
+/* Intern typed NULL constant. */
+TRef lj_ir_knull(jit_State *J, IRType t)
+{
+  IRIns *ir, *cir = J->cur.ir;
+  IRRef ref;
+  for (ref = J->chain[IR_KNULL]; ref; ref = cir[ref].prev)
+    if (irt_t(cir[ref].t) == t)
+      goto found;
+  ref = ir_nextk(J);
+  ir = IR(ref);
+  ir->i = 0;
+  ir->t.irt = (uint8_t)t;
+  ir->o = IR_KNULL;
+  ir->prev = J->chain[IR_KNULL];
+  J->chain[IR_KNULL] = (IRRef1)ref;
+found:
+  return TREF(ref, t);
+}
+
+/* Intern key slot. */
+TRef lj_ir_kslot(jit_State *J, TRef key, IRRef slot)
+{
+  IRIns *ir, *cir = J->cur.ir;
+  IRRef2 op12 = IRREF2((IRRef1)key, (IRRef1)slot);
+  IRRef ref;
+  /* Const part is not touched by CSE/DCE, so 0-65535 is ok for IRMlit here. */
+  lj_assertJ(tref_isk(key) && slot == (IRRef)(IRRef1)slot,
+	     "out-of-range key/slot");
+  for (ref = J->chain[IR_KSLOT]; ref; ref = cir[ref].prev)
+    if (cir[ref].op12 == op12)
+      goto found;
+  ref = ir_nextk(J);
+  ir = IR(ref);
+  ir->op12 = op12;
+  ir->t.irt = IRT_P32;
+  ir->o = IR_KSLOT;
+  ir->prev = J->chain[IR_KSLOT];
+  J->chain[IR_KSLOT] = (IRRef1)ref;
+found:
+  return TREF(ref, IRT_P32);
+}
+
+/* -- Access to IR constants ---------------------------------------------- */
+
+/* Copy value of IR constant. */
+void lj_ir_kvalue(lua_State *L, TValue *tv, const IRIns *ir)
+{
+  UNUSED(L);
+  lj_assertL(ir->o != IR_KSLOT, "unexpected KSLOT");  /* Common mistake. */
+  switch (ir->o) {
+  case IR_KPRI: setpriV(tv, irt_toitype(ir->t)); break;
+  case IR_KINT: setintV(tv, ir->i); break;
+  case IR_KGC: setgcV(L, tv, ir_kgc(ir), irt_toitype(ir->t)); break;
+  case IR_KPTR: case IR_KKPTR:
+    setnumV(tv, (lua_Number)(uintptr_t)ir_kptr(ir));
+    break;
+  case IR_KNULL: setintV(tv, 0); break;
+  case IR_KNUM: setnumV(tv, ir_knum(ir)->n); break;
+#if LJ_HASFFI
+  case IR_KINT64: {
+    GCcdata *cd = lj_cdata_new_(L, CTID_INT64, 8);
+    *(uint64_t *)cdataptr(cd) = ir_kint64(ir)->u64;
+    setcdataV(L, tv, cd);
+    break;
+    }
+#endif
+  default: lj_assertL(0, "bad IR constant op %d", ir->o); break;
+  }
+}
+
+/* -- Convert IR operand types -------------------------------------------- */
+
+/* Convert from string to number. */
+TRef LJ_FASTCALL lj_ir_tonumber(jit_State *J, TRef tr)
+{
+  if (!tref_isnumber(tr)) {
+    if (tref_isstr(tr))
+      tr = emitir(IRTG(IR_STRTO, IRT_NUM), tr, 0);
+    else
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+  }
+  return tr;
+}
+
+/* Convert from integer or string to number. */
+TRef LJ_FASTCALL lj_ir_tonum(jit_State *J, TRef tr)
+{
+  if (!tref_isnum(tr)) {
+    if (tref_isinteger(tr))
+      tr = emitir(IRTN(IR_CONV), tr, IRCONV_NUM_INT);
+    else if (tref_isstr(tr))
+      tr = emitir(IRTG(IR_STRTO, IRT_NUM), tr, 0);
+    else
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+  }
+  return tr;
+}
+
+/* Convert from integer or number to string. */
+TRef LJ_FASTCALL lj_ir_tostr(jit_State *J, TRef tr)
+{
+  if (!tref_isstr(tr)) {
+    if (!tref_isnumber(tr))
+      lj_trace_err(J, LJ_TRERR_BADTYPE);
+    tr = emitir(IRT(IR_TOSTR, IRT_STR), tr,
+		tref_isnum(tr) ? IRTOSTR_NUM : IRTOSTR_INT);
+  }
+  return tr;
+}
+
+/* -- Miscellaneous IR ops ------------------------------------------------ */
+
+/* Evaluate numeric comparison. */
+int lj_ir_numcmp(lua_Number a, lua_Number b, IROp op)
+{
+  switch (op) {
+  case IR_EQ: return (a == b);
+  case IR_NE: return (a != b);
+  case IR_LT: return (a < b);
+  case IR_GE: return (a >= b);
+  case IR_LE: return (a <= b);
+  case IR_GT: return (a > b);
+  case IR_ULT: return !(a >= b);
+  case IR_UGE: return !(a < b);
+  case IR_ULE: return !(a > b);
+  case IR_UGT: return !(a <= b);
+  default: lj_assertX(0, "bad IR op %d", op); return 0;
+  }
+}
+
+/* Evaluate string comparison. */
+int lj_ir_strcmp(GCstr *a, GCstr *b, IROp op)
+{
+  int res = lj_str_cmp(a, b);
+  switch (op) {
+  case IR_LT: return (res < 0);
+  case IR_GE: return (res >= 0);
+  case IR_LE: return (res <= 0);
+  case IR_GT: return (res > 0);
+  default: lj_assertX(0, "bad IR op %d", op); return 0;
+  }
+}
+
+/* Rollback IR to previous state. */
+void lj_ir_rollback(jit_State *J, IRRef ref)
+{
+  IRRef nins = J->cur.nins;
+  while (nins > ref) {
+    IRIns *ir;
+    nins--;
+    ir = IR(nins);
+    J->chain[ir->o] = ir->prev;
+  }
+  J->cur.nins = nins;
+}
+
+#undef IR
+#undef fins
+#undef emitir
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_ir.h b/libs/luajit-cmake/luajit/src/lj_ir.h
new file mode 100644
index 0000000..ed492e9
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_ir.h
@@ -0,0 +1,614 @@
+/*
+** SSA IR (Intermediate Representation) format.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_IR_H
+#define _LJ_IR_H
+
+#include "lj_obj.h"
+
+/* -- IR instructions ----------------------------------------------------- */
+
+/* IR instruction definition. Order matters, see below. ORDER IR */
+#define IRDEF(_) \
+  /* Guarded assertions. */ \
+  /* Must be properly aligned to flip opposites (^1) and (un)ordered (^4). */ \
+  _(LT,		N , ref, ref) \
+  _(GE,		N , ref, ref) \
+  _(LE,		N , ref, ref) \
+  _(GT,		N , ref, ref) \
+  \
+  _(ULT,	N , ref, ref) \
+  _(UGE,	N , ref, ref) \
+  _(ULE,	N , ref, ref) \
+  _(UGT,	N , ref, ref) \
+  \
+  _(EQ,		C , ref, ref) \
+  _(NE,		C , ref, ref) \
+  \
+  _(ABC,	N , ref, ref) \
+  _(RETF,	S , ref, ref) \
+  \
+  /* Miscellaneous ops. */ \
+  _(NOP,	N , ___, ___) \
+  _(BASE,	N , lit, lit) \
+  _(PVAL,	N , lit, ___) \
+  _(GCSTEP,	S , ___, ___) \
+  _(HIOP,	S , ref, ref) \
+  _(LOOP,	S , ___, ___) \
+  _(USE,	S , ref, ___) \
+  _(PHI,	S , ref, ref) \
+  _(RENAME,	S , ref, lit) \
+  _(PROF,	S , ___, ___) \
+  \
+  /* Constants. */ \
+  _(KPRI,	N , ___, ___) \
+  _(KINT,	N , cst, ___) \
+  _(KGC,	N , cst, ___) \
+  _(KPTR,	N , cst, ___) \
+  _(KKPTR,	N , cst, ___) \
+  _(KNULL,	N , cst, ___) \
+  _(KNUM,	N , cst, ___) \
+  _(KINT64,	N , cst, ___) \
+  _(KSLOT,	N , ref, lit) \
+  \
+  /* Bit ops. */ \
+  _(BNOT,	N , ref, ___) \
+  _(BSWAP,	N , ref, ___) \
+  _(BAND,	C , ref, ref) \
+  _(BOR,	C , ref, ref) \
+  _(BXOR,	C , ref, ref) \
+  _(BSHL,	N , ref, ref) \
+  _(BSHR,	N , ref, ref) \
+  _(BSAR,	N , ref, ref) \
+  _(BROL,	N , ref, ref) \
+  _(BROR,	N , ref, ref) \
+  \
+  /* Arithmetic ops. ORDER ARITH */ \
+  _(ADD,	C , ref, ref) \
+  _(SUB,	N , ref, ref) \
+  _(MUL,	C , ref, ref) \
+  _(DIV,	N , ref, ref) \
+  _(MOD,	N , ref, ref) \
+  _(POW,	N , ref, ref) \
+  _(NEG,	N , ref, ref) \
+  \
+  _(ABS,	N , ref, ref) \
+  _(LDEXP,	N , ref, ref) \
+  _(MIN,	C , ref, ref) \
+  _(MAX,	C , ref, ref) \
+  _(FPMATH,	N , ref, lit) \
+  \
+  /* Overflow-checking arithmetic ops. */ \
+  _(ADDOV,	CW, ref, ref) \
+  _(SUBOV,	NW, ref, ref) \
+  _(MULOV,	CW, ref, ref) \
+  \
+  /* Memory ops. A = array, H = hash, U = upvalue, F = field, S = stack. */ \
+  \
+  /* Memory references. */ \
+  _(AREF,	R , ref, ref) \
+  _(HREFK,	R , ref, ref) \
+  _(HREF,	L , ref, ref) \
+  _(NEWREF,	S , ref, ref) \
+  _(UREFO,	LW, ref, lit) \
+  _(UREFC,	LW, ref, lit) \
+  _(FREF,	R , ref, lit) \
+  _(TMPREF,	S , ref, lit) \
+  _(STRREF,	N , ref, ref) \
+  _(LREF,	L , ___, ___) \
+  \
+  /* Loads and Stores. These must be in the same order. */ \
+  _(ALOAD,	L , ref, ___) \
+  _(HLOAD,	L , ref, ___) \
+  _(ULOAD,	L , ref, ___) \
+  _(FLOAD,	L , ref, lit) \
+  _(XLOAD,	L , ref, lit) \
+  _(SLOAD,	L , lit, lit) \
+  _(VLOAD,	L , ref, lit) \
+  _(ALEN,	L , ref, ref) \
+  \
+  _(ASTORE,	S , ref, ref) \
+  _(HSTORE,	S , ref, ref) \
+  _(USTORE,	S , ref, ref) \
+  _(FSTORE,	S , ref, ref) \
+  _(XSTORE,	S , ref, ref) \
+  \
+  /* Allocations. */ \
+  _(SNEW,	N , ref, ref)  /* CSE is ok, not marked as A. */ \
+  _(XSNEW,	A , ref, ref) \
+  _(TNEW,	AW, lit, lit) \
+  _(TDUP,	AW, ref, ___) \
+  _(CNEW,	AW, ref, ref) \
+  _(CNEWI,	NW, ref, ref)  /* CSE is ok, not marked as A. */ \
+  \
+  /* Buffer operations. */ \
+  _(BUFHDR,	L , ref, lit) \
+  _(BUFPUT,	LW, ref, ref) \
+  _(BUFSTR,	AW, ref, ref) \
+  \
+  /* Barriers. */ \
+  _(TBAR,	S , ref, ___) \
+  _(OBAR,	S , ref, ref) \
+  _(XBAR,	S , ___, ___) \
+  \
+  /* Type conversions. */ \
+  _(CONV,	N , ref, lit) \
+  _(TOBIT,	N , ref, ref) \
+  _(TOSTR,	N , ref, lit) \
+  _(STRTO,	N , ref, ___) \
+  \
+  /* Calls. */ \
+  _(CALLN,	NW, ref, lit) \
+  _(CALLA,	AW, ref, lit) \
+  _(CALLL,	LW, ref, lit) \
+  _(CALLS,	S , ref, lit) \
+  _(CALLXS,	S , ref, ref) \
+  _(CARG,	N , ref, ref) \
+  \
+  /* End of list. */
+
+/* IR opcodes (max. 256). */
+typedef enum {
+#define IRENUM(name, m, m1, m2)	IR_##name,
+IRDEF(IRENUM)
+#undef IRENUM
+  IR__MAX
+} IROp;
+
+/* Stored opcode. */
+typedef uint8_t IROp1;
+
+LJ_STATIC_ASSERT(((int)IR_EQ^1) == (int)IR_NE);
+LJ_STATIC_ASSERT(((int)IR_LT^1) == (int)IR_GE);
+LJ_STATIC_ASSERT(((int)IR_LE^1) == (int)IR_GT);
+LJ_STATIC_ASSERT(((int)IR_LT^3) == (int)IR_GT);
+LJ_STATIC_ASSERT(((int)IR_LT^4) == (int)IR_ULT);
+
+/* Delta between xLOAD and xSTORE. */
+#define IRDELTA_L2S		((int)IR_ASTORE - (int)IR_ALOAD)
+
+LJ_STATIC_ASSERT((int)IR_HLOAD + IRDELTA_L2S == (int)IR_HSTORE);
+LJ_STATIC_ASSERT((int)IR_ULOAD + IRDELTA_L2S == (int)IR_USTORE);
+LJ_STATIC_ASSERT((int)IR_FLOAD + IRDELTA_L2S == (int)IR_FSTORE);
+LJ_STATIC_ASSERT((int)IR_XLOAD + IRDELTA_L2S == (int)IR_XSTORE);
+
+/* -- Named IR literals --------------------------------------------------- */
+
+/* FPMATH sub-functions. ORDER FPM. */
+#define IRFPMDEF(_) \
+  _(FLOOR) _(CEIL) _(TRUNC)  /* Must be first and in this order. */ \
+  _(SQRT) _(LOG) _(LOG2) \
+  _(OTHER)
+
+typedef enum {
+#define FPMENUM(name)		IRFPM_##name,
+IRFPMDEF(FPMENUM)
+#undef FPMENUM
+  IRFPM__MAX
+} IRFPMathOp;
+
+/* FLOAD fields. */
+#define IRFLDEF(_) \
+  _(STR_LEN,	offsetof(GCstr, len)) \
+  _(FUNC_ENV,	offsetof(GCfunc, l.env)) \
+  _(FUNC_PC,	offsetof(GCfunc, l.pc)) \
+  _(FUNC_FFID,	offsetof(GCfunc, l.ffid)) \
+  _(THREAD_ENV,	offsetof(lua_State, env)) \
+  _(TAB_META,	offsetof(GCtab, metatable)) \
+  _(TAB_ARRAY,	offsetof(GCtab, array)) \
+  _(TAB_NODE,	offsetof(GCtab, node)) \
+  _(TAB_ASIZE,	offsetof(GCtab, asize)) \
+  _(TAB_HMASK,	offsetof(GCtab, hmask)) \
+  _(TAB_NOMM,	offsetof(GCtab, nomm)) \
+  _(UDATA_META,	offsetof(GCudata, metatable)) \
+  _(UDATA_UDTYPE, offsetof(GCudata, udtype)) \
+  _(UDATA_FILE,	sizeof(GCudata)) \
+  _(SBUF_W,	sizeof(GCudata) + offsetof(SBufExt, w)) \
+  _(SBUF_E,	sizeof(GCudata) + offsetof(SBufExt, e)) \
+  _(SBUF_B,	sizeof(GCudata) + offsetof(SBufExt, b)) \
+  _(SBUF_L,	sizeof(GCudata) + offsetof(SBufExt, L)) \
+  _(SBUF_REF,	sizeof(GCudata) + offsetof(SBufExt, cowref)) \
+  _(SBUF_R,	sizeof(GCudata) + offsetof(SBufExt, r)) \
+  _(CDATA_CTYPEID, offsetof(GCcdata, ctypeid)) \
+  _(CDATA_PTR,	sizeof(GCcdata)) \
+  _(CDATA_INT,	sizeof(GCcdata)) \
+  _(CDATA_INT64, sizeof(GCcdata)) \
+  _(CDATA_INT64_4, sizeof(GCcdata) + 4)
+
+typedef enum {
+#define FLENUM(name, ofs)	IRFL_##name,
+IRFLDEF(FLENUM)
+#undef FLENUM
+  IRFL__MAX
+} IRFieldID;
+
+/* TMPREF mode bits, stored in op2. */
+#define IRTMPREF_IN1		0x01	/* First input value. */
+#define IRTMPREF_OUT1		0x02	/* First output value. */
+#define IRTMPREF_OUT2		0x04	/* Second output value. */
+
+/* SLOAD mode bits, stored in op2. */
+#define IRSLOAD_PARENT		0x01	/* Coalesce with parent trace. */
+#define IRSLOAD_FRAME		0x02	/* Load 32 bits of ftsz. */
+#define IRSLOAD_TYPECHECK	0x04	/* Needs type check. */
+#define IRSLOAD_CONVERT		0x08	/* Number to integer conversion. */
+#define IRSLOAD_READONLY	0x10	/* Read-only, omit slot store. */
+#define IRSLOAD_INHERIT		0x20	/* Inherited by exits/side traces. */
+#define IRSLOAD_KEYINDEX	0x40	/* Table traversal key index. */
+
+/* XLOAD mode bits, stored in op2. */
+#define IRXLOAD_READONLY	0x01	/* Load from read-only data. */
+#define IRXLOAD_VOLATILE	0x02	/* Load from volatile data. */
+#define IRXLOAD_UNALIGNED	0x04	/* Unaligned load. */
+
+/* BUFHDR mode, stored in op2. */
+#define IRBUFHDR_RESET		0	/* Reset buffer. */
+#define IRBUFHDR_APPEND		1	/* Append to buffer. */
+#define IRBUFHDR_WRITE		2	/* Write to string buffer. */
+
+/* CONV mode, stored in op2. */
+#define IRCONV_SRCMASK		0x001f	/* Source IRType. */
+#define IRCONV_DSTMASK		0x03e0	/* Dest. IRType (also in ir->t). */
+#define IRCONV_DSH		5
+#define IRCONV_NUM_INT		((IRT_NUM<<IRCONV_DSH)|IRT_INT)
+#define IRCONV_INT_NUM		((IRT_INT<<IRCONV_DSH)|IRT_NUM)
+#define IRCONV_SEXT		0x0800	/* Sign-extend integer to integer. */
+#define IRCONV_MODEMASK		0x0fff
+#define IRCONV_CONVMASK		0xf000
+#define IRCONV_CSH		12
+/* Number to integer conversion mode. Ordered by strength of the checks. */
+#define IRCONV_TOBIT  (0<<IRCONV_CSH)	/* None. Cache only: TOBIT conv. */
+#define IRCONV_ANY    (1<<IRCONV_CSH)	/* Any FP number is ok. */
+#define IRCONV_INDEX  (2<<IRCONV_CSH)	/* Check + special backprop rules. */
+#define IRCONV_CHECK  (3<<IRCONV_CSH)	/* Number checked for integerness. */
+#define IRCONV_NONE   IRCONV_ANY	/* INT|*64 no conv, but change type. */
+
+/* TOSTR mode, stored in op2. */
+#define IRTOSTR_INT		0	/* Convert integer to string. */
+#define IRTOSTR_NUM		1	/* Convert number to string. */
+#define IRTOSTR_CHAR		2	/* Convert char value to string. */
+
+/* -- IR operands --------------------------------------------------------- */
+
+/* IR operand mode (2 bit). */
+typedef enum {
+  IRMref,		/* IR reference. */
+  IRMlit,		/* 16 bit unsigned literal. */
+  IRMcst,		/* Constant literal: i, gcr or ptr. */
+  IRMnone		/* Unused operand. */
+} IRMode;
+#define IRM___		IRMnone
+
+/* Mode bits: Commutative, {Normal/Ref, Alloc, Load, Store}, Non-weak guard. */
+#define IRM_C			0x10
+
+#define IRM_N			0x00
+#define IRM_R			IRM_N
+#define IRM_A			0x20
+#define IRM_L			0x40
+#define IRM_S			0x60
+
+#define IRM_W			0x80
+
+#define IRM_NW			(IRM_N|IRM_W)
+#define IRM_CW			(IRM_C|IRM_W)
+#define IRM_AW			(IRM_A|IRM_W)
+#define IRM_LW			(IRM_L|IRM_W)
+
+#define irm_op1(m)		((IRMode)((m)&3))
+#define irm_op2(m)		((IRMode)(((m)>>2)&3))
+#define irm_iscomm(m)		((m) & IRM_C)
+#define irm_kind(m)		((m) & IRM_S)
+
+#define IRMODE(name, m, m1, m2)	(((IRM##m1)|((IRM##m2)<<2)|(IRM_##m))^IRM_W),
+
+LJ_DATA const uint8_t lj_ir_mode[IR__MAX+1];
+
+/* -- IR instruction types ------------------------------------------------ */
+
+#define IRTSIZE_PGC		(LJ_GC64 ? 8 : 4)
+
+/* Map of itypes to non-negative numbers and their sizes. ORDER LJ_T.
+** LJ_TUPVAL/LJ_TTRACE never appear in a TValue. Use these itypes for
+** IRT_P32 and IRT_P64, which never escape the IR.
+** The various integers are only used in the IR and can only escape to
+** a TValue after implicit or explicit conversion. Their types must be
+** contiguous and next to IRT_NUM (see the typerange macros below).
+*/
+#define IRTDEF(_) \
+  _(NIL, 4) _(FALSE, 4) _(TRUE, 4) _(LIGHTUD, LJ_64 ? 8 : 4) \
+  _(STR, IRTSIZE_PGC) _(P32, 4) _(THREAD, IRTSIZE_PGC) _(PROTO, IRTSIZE_PGC) \
+  _(FUNC, IRTSIZE_PGC) _(P64, 8) _(CDATA, IRTSIZE_PGC) _(TAB, IRTSIZE_PGC) \
+  _(UDATA, IRTSIZE_PGC) \
+  _(FLOAT, 4) _(NUM, 8) _(I8, 1) _(U8, 1) _(I16, 2) _(U16, 2) \
+  _(INT, 4) _(U32, 4) _(I64, 8) _(U64, 8) \
+  _(SOFTFP, 4)  /* There is room for 8 more types. */
+
+/* IR result type and flags (8 bit). */
+typedef enum {
+#define IRTENUM(name, size)	IRT_##name,
+IRTDEF(IRTENUM)
+#undef IRTENUM
+  IRT__MAX,
+
+  /* Native pointer type and the corresponding integer type. */
+  IRT_PTR = LJ_64 ? IRT_P64 : IRT_P32,
+  IRT_PGC = LJ_GC64 ? IRT_P64 : IRT_P32,
+  IRT_IGC = LJ_GC64 ? IRT_I64 : IRT_INT,
+  IRT_INTP = LJ_64 ? IRT_I64 : IRT_INT,
+  IRT_UINTP = LJ_64 ? IRT_U64 : IRT_U32,
+
+  /* Additional flags. */
+  IRT_MARK = 0x20,	/* Marker for misc. purposes. */
+  IRT_ISPHI = 0x40,	/* Instruction is left or right PHI operand. */
+  IRT_GUARD = 0x80,	/* Instruction is a guard. */
+
+  /* Masks. */
+  IRT_TYPE = 0x1f,
+  IRT_T = 0xff
+} IRType;
+
+#define irtype_ispri(irt)	((uint32_t)(irt) <= IRT_TRUE)
+
+/* Stored IRType. */
+typedef struct IRType1 { uint8_t irt; } IRType1;
+
+#define IRT(o, t)		((uint32_t)(((o)<<8) | (t)))
+#define IRTI(o)			(IRT((o), IRT_INT))
+#define IRTN(o)			(IRT((o), IRT_NUM))
+#define IRTG(o, t)		(IRT((o), IRT_GUARD|(t)))
+#define IRTGI(o)		(IRT((o), IRT_GUARD|IRT_INT))
+
+#define irt_t(t)		((IRType)(t).irt)
+#define irt_type(t)		((IRType)((t).irt & IRT_TYPE))
+#define irt_sametype(t1, t2)	((((t1).irt ^ (t2).irt) & IRT_TYPE) == 0)
+#define irt_typerange(t, first, last) \
+  ((uint32_t)((t).irt & IRT_TYPE) - (uint32_t)(first) <= (uint32_t)(last-first))
+
+#define irt_isnil(t)		(irt_type(t) == IRT_NIL)
+#define irt_ispri(t)		((uint32_t)irt_type(t) <= IRT_TRUE)
+#define irt_islightud(t)	(irt_type(t) == IRT_LIGHTUD)
+#define irt_isstr(t)		(irt_type(t) == IRT_STR)
+#define irt_istab(t)		(irt_type(t) == IRT_TAB)
+#define irt_iscdata(t)		(irt_type(t) == IRT_CDATA)
+#define irt_isfloat(t)		(irt_type(t) == IRT_FLOAT)
+#define irt_isnum(t)		(irt_type(t) == IRT_NUM)
+#define irt_isint(t)		(irt_type(t) == IRT_INT)
+#define irt_isi8(t)		(irt_type(t) == IRT_I8)
+#define irt_isu8(t)		(irt_type(t) == IRT_U8)
+#define irt_isi16(t)		(irt_type(t) == IRT_I16)
+#define irt_isu16(t)		(irt_type(t) == IRT_U16)
+#define irt_isu32(t)		(irt_type(t) == IRT_U32)
+#define irt_isi64(t)		(irt_type(t) == IRT_I64)
+#define irt_isu64(t)		(irt_type(t) == IRT_U64)
+
+#define irt_isfp(t)		(irt_isnum(t) || irt_isfloat(t))
+#define irt_isinteger(t)	(irt_typerange((t), IRT_I8, IRT_INT))
+#define irt_isgcv(t)		(irt_typerange((t), IRT_STR, IRT_UDATA))
+#define irt_isaddr(t)		(irt_typerange((t), IRT_LIGHTUD, IRT_UDATA))
+#define irt_isint64(t)		(irt_typerange((t), IRT_I64, IRT_U64))
+
+#if LJ_GC64
+/* Include IRT_NIL, so IR(ASMREF_L) (aka REF_NIL) is considered 64 bit. */
+#define IRT_IS64 \
+  ((1u<<IRT_NUM)|(1u<<IRT_I64)|(1u<<IRT_U64)|(1u<<IRT_P64)|\
+   (1u<<IRT_LIGHTUD)|(1u<<IRT_STR)|(1u<<IRT_THREAD)|(1u<<IRT_PROTO)|\
+   (1u<<IRT_FUNC)|(1u<<IRT_CDATA)|(1u<<IRT_TAB)|(1u<<IRT_UDATA)|\
+   (1u<<IRT_NIL))
+#elif LJ_64
+#define IRT_IS64 \
+  ((1u<<IRT_NUM)|(1u<<IRT_I64)|(1u<<IRT_U64)|(1u<<IRT_P64)|(1u<<IRT_LIGHTUD))
+#else
+#define IRT_IS64 \
+  ((1u<<IRT_NUM)|(1u<<IRT_I64)|(1u<<IRT_U64))
+#endif
+
+#define irt_is64(t)		((IRT_IS64 >> irt_type(t)) & 1)
+#define irt_is64orfp(t)		(((IRT_IS64|(1u<<IRT_FLOAT))>>irt_type(t)) & 1)
+
+#define irt_size(t)		(lj_ir_type_size[irt_t((t))])
+
+LJ_DATA const uint8_t lj_ir_type_size[];
+
+static LJ_AINLINE IRType itype2irt(const TValue *tv)
+{
+  if (tvisint(tv))
+    return IRT_INT;
+  else if (tvisnum(tv))
+    return IRT_NUM;
+#if LJ_64 && !LJ_GC64
+  else if (tvislightud(tv))
+    return IRT_LIGHTUD;
+#endif
+  else
+    return (IRType)~itype(tv);
+}
+
+static LJ_AINLINE uint32_t irt_toitype_(IRType t)
+{
+  lj_assertX(!LJ_64 || LJ_GC64 || t != IRT_LIGHTUD,
+	     "no plain type tag for lightuserdata");
+  if (LJ_DUALNUM && t > IRT_NUM) {
+    return LJ_TISNUM;
+  } else {
+    lj_assertX(t <= IRT_NUM, "no plain type tag for IR type %d", t);
+    return ~(uint32_t)t;
+  }
+}
+
+#define irt_toitype(t)		irt_toitype_(irt_type((t)))
+
+#define irt_isguard(t)		((t).irt & IRT_GUARD)
+#define irt_ismarked(t)		((t).irt & IRT_MARK)
+#define irt_setmark(t)		((t).irt |= IRT_MARK)
+#define irt_clearmark(t)	((t).irt &= ~IRT_MARK)
+#define irt_isphi(t)		((t).irt & IRT_ISPHI)
+#define irt_setphi(t)		((t).irt |= IRT_ISPHI)
+#define irt_clearphi(t)		((t).irt &= ~IRT_ISPHI)
+
+/* Stored combined IR opcode and type. */
+typedef uint16_t IROpT;
+
+/* -- IR references ------------------------------------------------------- */
+
+/* IR references. */
+typedef uint16_t IRRef1;	/* One stored reference. */
+typedef uint32_t IRRef2;	/* Two stored references. */
+typedef uint32_t IRRef;		/* Used to pass around references. */
+
+/* Fixed references. */
+enum {
+  REF_BIAS =	0x8000,
+  REF_TRUE =	REF_BIAS-3,
+  REF_FALSE =	REF_BIAS-2,
+  REF_NIL =	REF_BIAS-1,	/* \--- Constants grow downwards. */
+  REF_BASE =	REF_BIAS,	/* /--- IR grows upwards. */
+  REF_FIRST =	REF_BIAS+1,
+  REF_DROP =	0xffff
+};
+
+/* Note: IRMlit operands must be < REF_BIAS, too!
+** This allows for fast and uniform manipulation of all operands
+** without looking up the operand mode in lj_ir_mode:
+** - CSE calculates the maximum reference of two operands.
+**   This must work with mixed reference/literal operands, too.
+** - DCE marking only checks for operand >= REF_BIAS.
+** - LOOP needs to substitute reference operands.
+**   Constant references and literals must not be modified.
+*/
+
+#define IRREF2(lo, hi)		((IRRef2)(lo) | ((IRRef2)(hi) << 16))
+
+#define irref_isk(ref)		((ref) < REF_BIAS)
+
+/* Tagged IR references (32 bit).
+**
+** +-------+-------+---------------+
+** |  irt  | flags |      ref      |
+** +-------+-------+---------------+
+**
+** The tag holds a copy of the IRType and speeds up IR type checks.
+*/
+typedef uint32_t TRef;
+
+#define TREF_REFMASK		0x0000ffff
+#define TREF_FRAME		0x00010000
+#define TREF_CONT		0x00020000
+#define TREF_KEYINDEX		0x00100000
+
+#define TREF(ref, t)		((TRef)((ref) + ((t)<<24)))
+
+#define tref_ref(tr)		((IRRef1)(tr))
+#define tref_t(tr)		((IRType)((tr)>>24))
+#define tref_type(tr)		((IRType)(((tr)>>24) & IRT_TYPE))
+#define tref_typerange(tr, first, last) \
+  ((((tr)>>24) & IRT_TYPE) - (TRef)(first) <= (TRef)(last-first))
+
+#define tref_istype(tr, t)	(((tr) & (IRT_TYPE<<24)) == ((t)<<24))
+#define tref_isnil(tr)		(tref_istype((tr), IRT_NIL))
+#define tref_isfalse(tr)	(tref_istype((tr), IRT_FALSE))
+#define tref_istrue(tr)		(tref_istype((tr), IRT_TRUE))
+#define tref_islightud(tr)	(tref_istype((tr), IRT_LIGHTUD))
+#define tref_isstr(tr)		(tref_istype((tr), IRT_STR))
+#define tref_isfunc(tr)		(tref_istype((tr), IRT_FUNC))
+#define tref_iscdata(tr)	(tref_istype((tr), IRT_CDATA))
+#define tref_istab(tr)		(tref_istype((tr), IRT_TAB))
+#define tref_isudata(tr)	(tref_istype((tr), IRT_UDATA))
+#define tref_isnum(tr)		(tref_istype((tr), IRT_NUM))
+#define tref_isint(tr)		(tref_istype((tr), IRT_INT))
+
+#define tref_isbool(tr)		(tref_typerange((tr), IRT_FALSE, IRT_TRUE))
+#define tref_ispri(tr)		(tref_typerange((tr), IRT_NIL, IRT_TRUE))
+#define tref_istruecond(tr)	(!tref_typerange((tr), IRT_NIL, IRT_FALSE))
+#define tref_isinteger(tr)	(tref_typerange((tr), IRT_I8, IRT_INT))
+#define tref_isnumber(tr)	(tref_typerange((tr), IRT_NUM, IRT_INT))
+#define tref_isnumber_str(tr)	(tref_isnumber((tr)) || tref_isstr((tr)))
+#define tref_isgcv(tr)		(tref_typerange((tr), IRT_STR, IRT_UDATA))
+
+#define tref_isk(tr)		(irref_isk(tref_ref((tr))))
+#define tref_isk2(tr1, tr2)	(irref_isk(tref_ref((tr1) | (tr2))))
+
+#define TREF_PRI(t)		(TREF(REF_NIL-(t), (t)))
+#define TREF_NIL		(TREF_PRI(IRT_NIL))
+#define TREF_FALSE		(TREF_PRI(IRT_FALSE))
+#define TREF_TRUE		(TREF_PRI(IRT_TRUE))
+
+/* -- IR format ----------------------------------------------------------- */
+
+/* IR instruction format (64 bit).
+**
+**    16      16     8   8   8   8
+** +-------+-------+---+---+---+---+
+** |  op1  |  op2  | t | o | r | s |
+** +-------+-------+---+---+---+---+
+** |  op12/i/gco32 |   ot  | prev  | (alternative fields in union)
+** +-------+-------+---+---+---+---+
+** |  TValue/gco64                 | (2nd IR slot for 64 bit constants)
+** +---------------+-------+-------+
+**        32           16      16
+**
+** prev is only valid prior to register allocation and then reused for r + s.
+*/
+
+typedef union IRIns {
+  struct {
+    LJ_ENDIAN_LOHI(
+      IRRef1 op1;	/* IR operand 1. */
+    , IRRef1 op2;	/* IR operand 2. */
+    )
+    IROpT ot;		/* IR opcode and type (overlaps t and o). */
+    IRRef1 prev;	/* Previous ins in same chain (overlaps r and s). */
+  };
+  struct {
+    IRRef2 op12;	/* IR operand 1 and 2 (overlaps op1 and op2). */
+    LJ_ENDIAN_LOHI(
+      IRType1 t;	/* IR type. */
+    , IROp1 o;		/* IR opcode. */
+    )
+    LJ_ENDIAN_LOHI(
+      uint8_t r;	/* Register allocation (overlaps prev). */
+    , uint8_t s;	/* Spill slot allocation (overlaps prev). */
+    )
+  };
+  int32_t i;		/* 32 bit signed integer literal (overlaps op12). */
+  GCRef gcr;		/* GCobj constant (overlaps op12 or entire slot). */
+  MRef ptr;		/* Pointer constant (overlaps op12 or entire slot). */
+  TValue tv;		/* TValue constant (overlaps entire slot). */
+} IRIns;
+
+#define ir_isk64(ir) \
+  ((ir)->o == IR_KNUM || (ir)->o == IR_KINT64 || \
+   (LJ_GC64 && \
+    ((ir)->o == IR_KGC || (ir)->o == IR_KPTR || (ir)->o == IR_KKPTR)))
+
+#define ir_kgc(ir)	check_exp((ir)->o == IR_KGC, gcref((ir)[LJ_GC64].gcr))
+#define ir_kstr(ir)	(gco2str(ir_kgc((ir))))
+#define ir_ktab(ir)	(gco2tab(ir_kgc((ir))))
+#define ir_kfunc(ir)	(gco2func(ir_kgc((ir))))
+#define ir_kcdata(ir)	(gco2cd(ir_kgc((ir))))
+#define ir_knum(ir)	check_exp((ir)->o == IR_KNUM, &(ir)[1].tv)
+#define ir_kint64(ir)	check_exp((ir)->o == IR_KINT64, &(ir)[1].tv)
+#define ir_k64(ir)	check_exp(ir_isk64(ir), &(ir)[1].tv)
+#define ir_kptr(ir) \
+  check_exp((ir)->o == IR_KPTR || (ir)->o == IR_KKPTR, \
+    mref((ir)[LJ_GC64].ptr, void))
+
+/* A store or any other op with a non-weak guard has a side-effect. */
+static LJ_AINLINE int ir_sideeff(IRIns *ir)
+{
+  return (((ir->t.irt | ~IRT_GUARD) & lj_ir_mode[ir->o]) >= IRM_S);
+}
+
+LJ_STATIC_ASSERT((int)IRT_GUARD == (int)IRM_W);
+
+/* Replace IR instruction with NOP. */
+static LJ_AINLINE void lj_ir_nop(IRIns *ir)
+{
+  ir->ot = IRT(IR_NOP, IRT_NIL);
+  ir->op1 = ir->op2 = 0;
+  ir->prev = 0;
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_ircall.h b/libs/luajit-cmake/luajit/src/lj_ircall.h
new file mode 100644
index 0000000..67fb58a
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_ircall.h
@@ -0,0 +1,383 @@
+/*
+** IR CALL* instruction definitions.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_IRCALL_H
+#define _LJ_IRCALL_H
+
+#include "lj_obj.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+
+/* C call info for CALL* instructions. */
+typedef struct CCallInfo {
+  ASMFunction func;		/* Function pointer. */
+  uint32_t flags;		/* Number of arguments and flags. */
+} CCallInfo;
+
+#define CCI_NARGS(ci)		((ci)->flags & 0xff)	/* # of args. */
+#define CCI_NARGS_MAX		32			/* Max. # of args. */
+
+#define CCI_OTSHIFT		16
+#define CCI_OPTYPE(ci)		((ci)->flags >> CCI_OTSHIFT)  /* Get op/type. */
+#define CCI_TYPE(ci)		(((ci)->flags>>CCI_OTSHIFT) & IRT_TYPE)
+#define CCI_OPSHIFT		24
+#define CCI_OP(ci)		((ci)->flags >> CCI_OPSHIFT)  /* Get op. */
+
+#define CCI_CALL_N		(IR_CALLN << CCI_OPSHIFT)
+#define CCI_CALL_A		(IR_CALLA << CCI_OPSHIFT)
+#define CCI_CALL_L		(IR_CALLL << CCI_OPSHIFT)
+#define CCI_CALL_S		(IR_CALLS << CCI_OPSHIFT)
+#define CCI_CALL_FN		(CCI_CALL_N|CCI_CC_FASTCALL)
+#define CCI_CALL_FA		(CCI_CALL_A|CCI_CC_FASTCALL)
+#define CCI_CALL_FL		(CCI_CALL_L|CCI_CC_FASTCALL)
+#define CCI_CALL_FS		(CCI_CALL_S|CCI_CC_FASTCALL)
+
+/* C call info flags. */
+#define CCI_T			(IRT_GUARD << CCI_OTSHIFT)  /* May throw. */
+#define CCI_L			0x0100	/* Implicit L arg. */
+#define CCI_CASTU64		0x0200	/* Cast u64 result to number. */
+#define CCI_NOFPRCLOBBER	0x0400	/* Does not clobber any FPRs. */
+#define CCI_VARARG		0x0800	/* Vararg function. */
+
+#define CCI_CC_MASK		0x3000	/* Calling convention mask. */
+#define CCI_CC_SHIFT		12
+/* ORDER CC */
+#define CCI_CC_CDECL		0x0000	/* Default cdecl calling convention. */
+#define CCI_CC_THISCALL		0x1000	/* Thiscall calling convention. */
+#define CCI_CC_FASTCALL		0x2000	/* Fastcall calling convention. */
+#define CCI_CC_STDCALL		0x3000	/* Stdcall calling convention. */
+
+/* Extra args for SOFTFP, SPLIT 64 bit. */
+#define CCI_XARGS_SHIFT		14
+#define CCI_XARGS(ci)		(((ci)->flags >> CCI_XARGS_SHIFT) & 3)
+#define CCI_XA			(1u << CCI_XARGS_SHIFT)
+
+#if LJ_SOFTFP32 || (LJ_32 && LJ_HASFFI)
+#define CCI_XNARGS(ci)		(CCI_NARGS((ci)) + CCI_XARGS((ci)))
+#else
+#define CCI_XNARGS(ci)		CCI_NARGS((ci))
+#endif
+
+/* Helpers for conditional function definitions. */
+#define IRCALLCOND_ANY(x)		x
+
+#if LJ_TARGET_X86ORX64
+#define IRCALLCOND_FPMATH(x)		NULL
+#else
+#define IRCALLCOND_FPMATH(x)		x
+#endif
+
+#if LJ_SOFTFP
+#define IRCALLCOND_SOFTFP(x)		x
+#if LJ_HASFFI
+#define IRCALLCOND_SOFTFP_FFI(x)	x
+#else
+#define IRCALLCOND_SOFTFP_FFI(x)	NULL
+#endif
+#else
+#define IRCALLCOND_SOFTFP(x)		NULL
+#define IRCALLCOND_SOFTFP_FFI(x)	NULL
+#endif
+
+#if LJ_SOFTFP && LJ_TARGET_MIPS
+#define IRCALLCOND_SOFTFP_MIPS(x)	x
+#else
+#define IRCALLCOND_SOFTFP_MIPS(x)	NULL
+#endif
+
+#if LJ_SOFTFP && LJ_TARGET_MIPS64
+#define IRCALLCOND_SOFTFP_MIPS64(x)	x
+#else
+#define IRCALLCOND_SOFTFP_MIPS64(x)	NULL
+#endif
+
+#define LJ_NEED_FP64	(LJ_TARGET_ARM || LJ_TARGET_PPC || LJ_TARGET_MIPS)
+
+#if LJ_HASFFI && (LJ_SOFTFP || LJ_NEED_FP64)
+#define IRCALLCOND_FP64_FFI(x)		x
+#else
+#define IRCALLCOND_FP64_FFI(x)		NULL
+#endif
+
+#if LJ_HASFFI
+#define IRCALLCOND_FFI(x)		x
+#if LJ_32
+#define IRCALLCOND_FFI32(x)		x
+#else
+#define IRCALLCOND_FFI32(x)		NULL
+#endif
+#else
+#define IRCALLCOND_FFI(x)		NULL
+#define IRCALLCOND_FFI32(x)		NULL
+#endif
+
+#if LJ_HASBUFFER
+#define IRCALLCOND_BUFFER(x)		x
+#else
+#define IRCALLCOND_BUFFER(x)		NULL
+#endif
+
+#if LJ_HASBUFFER && LJ_HASFFI
+#define IRCALLCOND_BUFFFI(x)		x
+#else
+#define IRCALLCOND_BUFFFI(x)		NULL
+#endif
+
+#if LJ_SOFTFP
+#define XA_FP		CCI_XA
+#define XA2_FP		(CCI_XA+CCI_XA)
+#else
+#define XA_FP		0
+#define XA2_FP		0
+#endif
+
+#if LJ_SOFTFP32
+#define XA_FP32		CCI_XA
+#define XA2_FP32	(CCI_XA+CCI_XA)
+#else
+#define XA_FP32		0
+#define XA2_FP32	0
+#endif
+
+#if LJ_32
+#define XA_64		CCI_XA
+#define XA2_64		(CCI_XA+CCI_XA)
+#else
+#define XA_64		0
+#define XA2_64		0
+#endif
+
+/* Function definitions for CALL* instructions. */
+#define IRCALLDEF(_) \
+  _(ANY,	lj_str_cmp,		2,  FN, INT, CCI_NOFPRCLOBBER) \
+  _(ANY,	lj_str_find,		4,   N, PGC, 0) \
+  _(ANY,	lj_str_new,		3,   S, STR, CCI_L|CCI_T) \
+  _(ANY,	lj_strscan_num,		2,  FN, INT, 0) \
+  _(ANY,	lj_strfmt_int,		2,  FN, STR, CCI_L|CCI_T) \
+  _(ANY,	lj_strfmt_num,		2,  FN, STR, CCI_L|CCI_T) \
+  _(ANY,	lj_strfmt_char,		2,  FN, STR, CCI_L|CCI_T) \
+  _(ANY,	lj_strfmt_putint,	2,  FL, PGC, CCI_T) \
+  _(ANY,	lj_strfmt_putnum,	2,  FL, PGC, CCI_T) \
+  _(ANY,	lj_strfmt_putquoted,	2,  FL, PGC, CCI_T) \
+  _(ANY,	lj_strfmt_putfxint,	3,   L, PGC, XA_64|CCI_T) \
+  _(ANY,	lj_strfmt_putfnum_int,	3,   L, PGC, XA_FP|CCI_T) \
+  _(ANY,	lj_strfmt_putfnum_uint,	3,   L, PGC, XA_FP|CCI_T) \
+  _(ANY,	lj_strfmt_putfnum,	3,   L, PGC, XA_FP|CCI_T) \
+  _(ANY,	lj_strfmt_putfstr,	3,   L, PGC, CCI_T) \
+  _(ANY,	lj_strfmt_putfchar,	3,   L, PGC, CCI_T) \
+  _(ANY,	lj_buf_putmem,		3,   S, PGC, CCI_T) \
+  _(ANY,	lj_buf_putstr,		2,  FL, PGC, CCI_T) \
+  _(ANY,	lj_buf_putchar,		2,  FL, PGC, CCI_T) \
+  _(ANY,	lj_buf_putstr_reverse,	2,  FL, PGC, CCI_T) \
+  _(ANY,	lj_buf_putstr_lower,	2,  FL, PGC, CCI_T) \
+  _(ANY,	lj_buf_putstr_upper,	2,  FL, PGC, CCI_T) \
+  _(ANY,	lj_buf_putstr_rep,	3,   L, PGC, CCI_T) \
+  _(ANY,	lj_buf_puttab,		5,   L, PGC, CCI_T) \
+  _(BUFFER,	lj_bufx_set,		4,   S, NIL, 0) \
+  _(BUFFFI,	lj_bufx_more,		2,  FS, INT, CCI_T) \
+  _(BUFFER,	lj_serialize_put,	2,  FS, PGC, CCI_T) \
+  _(BUFFER,	lj_serialize_get,	2,  FS, PTR, CCI_T) \
+  _(BUFFER,	lj_serialize_encode,	2,  FA, STR, CCI_L|CCI_T) \
+  _(BUFFER,	lj_serialize_decode,	3,   A, INT, CCI_L|CCI_T) \
+  _(ANY,	lj_buf_tostr,		1,  FL, STR, CCI_T) \
+  _(ANY,	lj_tab_new_ah,		3,   A, TAB, CCI_L|CCI_T) \
+  _(ANY,	lj_tab_new1,		2,  FA, TAB, CCI_L|CCI_T) \
+  _(ANY,	lj_tab_dup,		2,  FA, TAB, CCI_L|CCI_T) \
+  _(ANY,	lj_tab_clear,		1,  FS, NIL, 0) \
+  _(ANY,	lj_tab_newkey,		3,   S, PGC, CCI_L|CCI_T) \
+  _(ANY,	lj_tab_keyindex,	2,  FL, INT, 0) \
+  _(ANY,	lj_vm_next,		2,  FL, PTR, 0) \
+  _(ANY,	lj_tab_len,		1,  FL, INT, 0) \
+  _(ANY,	lj_tab_len_hint,	2,  FL, INT, 0) \
+  _(ANY,	lj_gc_step_jit,		2,  FS, NIL, CCI_L) \
+  _(ANY,	lj_gc_barrieruv,	2,  FS, NIL, 0) \
+  _(ANY,	lj_mem_newgco,		2,  FA, PGC, CCI_L|CCI_T) \
+  _(ANY,	lj_prng_u64d,		1,  FS, NUM, CCI_CASTU64) \
+  _(ANY,	lj_vm_modi,		2,  FN, INT, 0) \
+  _(ANY,	log10,			1,   N, NUM, XA_FP) \
+  _(ANY,	exp,			1,   N, NUM, XA_FP) \
+  _(ANY,	sin,			1,   N, NUM, XA_FP) \
+  _(ANY,	cos,			1,   N, NUM, XA_FP) \
+  _(ANY,	tan,			1,   N, NUM, XA_FP) \
+  _(ANY,	asin,			1,   N, NUM, XA_FP) \
+  _(ANY,	acos,			1,   N, NUM, XA_FP) \
+  _(ANY,	atan,			1,   N, NUM, XA_FP) \
+  _(ANY,	sinh,			1,   N, NUM, XA_FP) \
+  _(ANY,	cosh,			1,   N, NUM, XA_FP) \
+  _(ANY,	tanh,			1,   N, NUM, XA_FP) \
+  _(ANY,	fputc,			2,   S, INT, 0) \
+  _(ANY,	fwrite,			4,   S, INT, 0) \
+  _(ANY,	fflush,			1,   S, INT, 0) \
+  /* ORDER FPM */ \
+  _(FPMATH,	lj_vm_floor,		1,   N, NUM, XA_FP) \
+  _(FPMATH,	lj_vm_ceil,		1,   N, NUM, XA_FP) \
+  _(FPMATH,	lj_vm_trunc,		1,   N, NUM, XA_FP) \
+  _(FPMATH,	sqrt,			1,   N, NUM, XA_FP) \
+  _(ANY,	log,			1,   N, NUM, XA_FP) \
+  _(ANY,	lj_vm_log2,		1,   N, NUM, XA_FP) \
+  _(ANY,	pow,			2,   N, NUM, XA2_FP) \
+  _(ANY,	atan2,			2,   N, NUM, XA2_FP) \
+  _(ANY,	ldexp,			2,   N, NUM, XA_FP) \
+  _(SOFTFP,	lj_vm_tobit,		1,   N, INT, XA_FP32) \
+  _(SOFTFP,	softfp_add,		2,   N, NUM, XA2_FP32) \
+  _(SOFTFP,	softfp_sub,		2,   N, NUM, XA2_FP32) \
+  _(SOFTFP,	softfp_mul,		2,   N, NUM, XA2_FP32) \
+  _(SOFTFP,	softfp_div,		2,   N, NUM, XA2_FP32) \
+  _(SOFTFP,	softfp_cmp,		2,   N, NIL, XA2_FP32) \
+  _(SOFTFP,	softfp_i2d,		1,   N, NUM, 0) \
+  _(SOFTFP,	softfp_d2i,		1,   N, INT, XA_FP32) \
+  _(SOFTFP_MIPS, lj_vm_sfmin,		2,   N, NUM, XA2_FP32) \
+  _(SOFTFP_MIPS, lj_vm_sfmax,		2,   N, NUM, XA2_FP32) \
+  _(SOFTFP_MIPS64, lj_vm_tointg,	1,   N, INT, 0) \
+  _(SOFTFP_FFI,	softfp_ui2d,		1,   N, NUM, 0) \
+  _(SOFTFP_FFI,	softfp_f2d,		1,   N, NUM, 0) \
+  _(SOFTFP_FFI,	softfp_d2ui,		1,   N, INT, XA_FP32) \
+  _(SOFTFP_FFI,	softfp_d2f,		1,   N, FLOAT, XA_FP32) \
+  _(SOFTFP_FFI,	softfp_i2f,		1,   N, FLOAT, 0) \
+  _(SOFTFP_FFI,	softfp_ui2f,		1,   N, FLOAT, 0) \
+  _(SOFTFP_FFI,	softfp_f2i,		1,   N, INT, 0) \
+  _(SOFTFP_FFI,	softfp_f2ui,		1,   N, INT, 0) \
+  _(FP64_FFI,	fp64_l2d,		1,   N, NUM, XA_64) \
+  _(FP64_FFI,	fp64_ul2d,		1,   N, NUM, XA_64) \
+  _(FP64_FFI,	fp64_l2f,		1,   N, FLOAT, XA_64) \
+  _(FP64_FFI,	fp64_ul2f,		1,   N, FLOAT, XA_64) \
+  _(FP64_FFI,	fp64_d2l,		1,   N, I64, XA_FP) \
+  _(FP64_FFI,	fp64_d2ul,		1,   N, U64, XA_FP) \
+  _(FP64_FFI,	fp64_f2l,		1,   N, I64, 0) \
+  _(FP64_FFI,	fp64_f2ul,		1,   N, U64, 0) \
+  _(FFI,	lj_carith_divi64,	2,   N, I64, XA2_64|CCI_NOFPRCLOBBER) \
+  _(FFI,	lj_carith_divu64,	2,   N, U64, XA2_64|CCI_NOFPRCLOBBER) \
+  _(FFI,	lj_carith_modi64,	2,   N, I64, XA2_64|CCI_NOFPRCLOBBER) \
+  _(FFI,	lj_carith_modu64,	2,   N, U64, XA2_64|CCI_NOFPRCLOBBER) \
+  _(FFI,	lj_carith_powi64,	2,   N, I64, XA2_64|CCI_NOFPRCLOBBER) \
+  _(FFI,	lj_carith_powu64,	2,   N, U64, XA2_64|CCI_NOFPRCLOBBER) \
+  _(FFI,	lj_cdata_newv,		4,   S, CDATA, CCI_L) \
+  _(FFI,	lj_cdata_setfin,	4,   S, NIL, CCI_L) \
+  _(FFI,	strlen,			1,   L, INTP, 0) \
+  _(FFI,	memcpy,			3,   S, PTR, 0) \
+  _(FFI,	memset,			3,   S, PTR, 0) \
+  _(FFI,	lj_vm_errno,		0,   S, INT, CCI_NOFPRCLOBBER) \
+  _(FFI32,	lj_carith_mul64,	2,   N, I64, XA2_64|CCI_NOFPRCLOBBER) \
+  _(FFI32,	lj_carith_shl64,	2,   N, U64, XA_64|CCI_NOFPRCLOBBER) \
+  _(FFI32,	lj_carith_shr64,	2,   N, U64, XA_64|CCI_NOFPRCLOBBER) \
+  _(FFI32,	lj_carith_sar64,	2,   N, U64, XA_64|CCI_NOFPRCLOBBER) \
+  _(FFI32,	lj_carith_rol64,	2,   N, U64, XA_64|CCI_NOFPRCLOBBER) \
+  _(FFI32,	lj_carith_ror64,	2,   N, U64, XA_64|CCI_NOFPRCLOBBER) \
+  \
+  /* End of list. */
+
+typedef enum {
+#define IRCALLENUM(cond, name, nargs, kind, type, flags)	IRCALL_##name,
+IRCALLDEF(IRCALLENUM)
+#undef IRCALLENUM
+  IRCALL__MAX
+} IRCallID;
+
+LJ_FUNC TRef lj_ir_call(jit_State *J, IRCallID id, ...);
+
+LJ_DATA const CCallInfo lj_ir_callinfo[IRCALL__MAX+1];
+
+/* Soft-float declarations. */
+#if LJ_SOFTFP
+#if LJ_TARGET_ARM
+#define softfp_add __aeabi_dadd
+#define softfp_sub __aeabi_dsub
+#define softfp_mul __aeabi_dmul
+#define softfp_div __aeabi_ddiv
+#define softfp_cmp __aeabi_cdcmple
+#define softfp_i2d __aeabi_i2d
+#define softfp_d2i __aeabi_d2iz
+#define softfp_ui2d __aeabi_ui2d
+#define softfp_f2d __aeabi_f2d
+#define softfp_d2ui __aeabi_d2uiz
+#define softfp_d2f __aeabi_d2f
+#define softfp_i2f __aeabi_i2f
+#define softfp_ui2f __aeabi_ui2f
+#define softfp_f2i __aeabi_f2iz
+#define softfp_f2ui __aeabi_f2uiz
+#define fp64_l2d __aeabi_l2d
+#define fp64_ul2d __aeabi_ul2d
+#define fp64_l2f __aeabi_l2f
+#define fp64_ul2f __aeabi_ul2f
+#if LJ_TARGET_IOS
+#define fp64_d2l __fixdfdi
+#define fp64_d2ul __fixunsdfdi
+#define fp64_f2l __fixsfdi
+#define fp64_f2ul __fixunssfdi
+#else
+#define fp64_d2l __aeabi_d2lz
+#define fp64_d2ul __aeabi_d2ulz
+#define fp64_f2l __aeabi_f2lz
+#define fp64_f2ul __aeabi_f2ulz
+#endif
+#elif LJ_TARGET_MIPS || LJ_TARGET_PPC
+#define softfp_add __adddf3
+#define softfp_sub __subdf3
+#define softfp_mul __muldf3
+#define softfp_div __divdf3
+#define softfp_cmp __ledf2
+#define softfp_i2d __floatsidf
+#define softfp_d2i __fixdfsi
+#define softfp_ui2d __floatunsidf
+#define softfp_f2d __extendsfdf2
+#define softfp_d2ui __fixunsdfsi
+#define softfp_d2f __truncdfsf2
+#define softfp_i2f __floatsisf
+#define softfp_ui2f __floatunsisf
+#define softfp_f2i __fixsfsi
+#define softfp_f2ui __fixunssfsi
+#else
+#error "Missing soft-float definitions for target architecture"
+#endif
+extern double softfp_add(double a, double b);
+extern double softfp_sub(double a, double b);
+extern double softfp_mul(double a, double b);
+extern double softfp_div(double a, double b);
+extern void softfp_cmp(double a, double b);
+extern double softfp_i2d(int32_t a);
+extern int32_t softfp_d2i(double a);
+#if LJ_HASFFI
+extern double softfp_ui2d(uint32_t a);
+extern double softfp_f2d(float a);
+extern uint32_t softfp_d2ui(double a);
+extern float softfp_d2f(double a);
+extern float softfp_i2f(int32_t a);
+extern float softfp_ui2f(uint32_t a);
+extern int32_t softfp_f2i(float a);
+extern uint32_t softfp_f2ui(float a);
+#endif
+#if LJ_TARGET_MIPS
+extern double lj_vm_sfmin(double a, double b);
+extern double lj_vm_sfmax(double a, double b);
+#endif
+#endif
+
+#if LJ_HASFFI && LJ_NEED_FP64 && !(LJ_TARGET_ARM && LJ_SOFTFP)
+#if defined(__GNUC__) || defined(__clang__)
+#define fp64_l2d __floatdidf
+#define fp64_ul2d __floatundidf
+#define fp64_l2f __floatdisf
+#define fp64_ul2f __floatundisf
+#define fp64_d2l __fixdfdi
+#define fp64_d2ul __fixunsdfdi
+#define fp64_f2l __fixsfdi
+#define fp64_f2ul __fixunssfdi
+#else
+#error "Missing fp64 helper definitions for this compiler"
+#endif
+#endif
+
+#if LJ_HASFFI && (LJ_SOFTFP || LJ_NEED_FP64)
+extern double fp64_l2d(int64_t a);
+extern double fp64_ul2d(uint64_t a);
+extern float fp64_l2f(int64_t a);
+extern float fp64_ul2f(uint64_t a);
+extern int64_t fp64_d2l(double a);
+extern uint64_t fp64_d2ul(double a);
+extern int64_t fp64_f2l(float a);
+extern uint64_t fp64_f2ul(float a);
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_iropt.h b/libs/luajit-cmake/luajit/src/lj_iropt.h
new file mode 100644
index 0000000..d239f17
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_iropt.h
@@ -0,0 +1,162 @@
+/*
+** Common header for IR emitter and optimizations.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_IROPT_H
+#define _LJ_IROPT_H
+
+#include <stdarg.h>
+
+#include "lj_obj.h"
+#include "lj_jit.h"
+
+#if LJ_HASJIT
+/* IR emitter. */
+LJ_FUNC void LJ_FASTCALL lj_ir_growtop(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_ir_emit(jit_State *J);
+
+/* Save current IR in J->fold.ins, but do not emit it (yet). */
+static LJ_AINLINE void lj_ir_set_(jit_State *J, uint16_t ot, IRRef1 a, IRRef1 b)
+{
+  J->fold.ins.ot = ot; J->fold.ins.op1 = a; J->fold.ins.op2 = b;
+}
+
+#define lj_ir_set(J, ot, a, b) \
+  lj_ir_set_(J, (uint16_t)(ot), (IRRef1)(a), (IRRef1)(b))
+
+/* Get ref of next IR instruction and optionally grow IR.
+** Note: this may invalidate all IRIns*!
+*/
+static LJ_AINLINE IRRef lj_ir_nextins(jit_State *J)
+{
+  IRRef ref = J->cur.nins;
+  if (LJ_UNLIKELY(ref >= J->irtoplim)) lj_ir_growtop(J);
+  J->cur.nins = ref + 1;
+  return ref;
+}
+
+LJ_FUNC TRef lj_ir_ggfload(jit_State *J, IRType t, uintptr_t ofs);
+
+/* Interning of constants. */
+LJ_FUNC TRef LJ_FASTCALL lj_ir_kint(jit_State *J, int32_t k);
+LJ_FUNC TRef lj_ir_k64(jit_State *J, IROp op, uint64_t u64);
+LJ_FUNC TRef lj_ir_knum_u64(jit_State *J, uint64_t u64);
+LJ_FUNC TRef lj_ir_knumint(jit_State *J, lua_Number n);
+LJ_FUNC TRef lj_ir_kint64(jit_State *J, uint64_t u64);
+LJ_FUNC TRef lj_ir_kgc(jit_State *J, GCobj *o, IRType t);
+LJ_FUNC TRef lj_ir_kptr_(jit_State *J, IROp op, void *ptr);
+LJ_FUNC TRef lj_ir_knull(jit_State *J, IRType t);
+LJ_FUNC TRef lj_ir_kslot(jit_State *J, TRef key, IRRef slot);
+LJ_FUNC TRef lj_ir_ktrace(jit_State *J);
+
+#if LJ_64
+#define lj_ir_kintp(J, k)	lj_ir_kint64(J, (uint64_t)(k))
+#else
+#define lj_ir_kintp(J, k)	lj_ir_kint(J, (int32_t)(k))
+#endif
+
+static LJ_AINLINE TRef lj_ir_knum(jit_State *J, lua_Number n)
+{
+  TValue tv;
+  tv.n = n;
+  return lj_ir_knum_u64(J, tv.u64);
+}
+
+#define lj_ir_kstr(J, str)	lj_ir_kgc(J, obj2gco((str)), IRT_STR)
+#define lj_ir_ktab(J, tab)	lj_ir_kgc(J, obj2gco((tab)), IRT_TAB)
+#define lj_ir_kfunc(J, func)	lj_ir_kgc(J, obj2gco((func)), IRT_FUNC)
+#define lj_ir_kptr(J, ptr)	lj_ir_kptr_(J, IR_KPTR, (ptr))
+#define lj_ir_kkptr(J, ptr)	lj_ir_kptr_(J, IR_KKPTR, (ptr))
+
+/* Special FP constants. */
+#define lj_ir_knum_zero(J)	lj_ir_knum_u64(J, U64x(00000000,00000000))
+#define lj_ir_knum_one(J)	lj_ir_knum_u64(J, U64x(3ff00000,00000000))
+#define lj_ir_knum_tobit(J)	lj_ir_knum_u64(J, U64x(43380000,00000000))
+
+/* Special 128 bit SIMD constants. */
+#define lj_ir_ksimd(J, idx) \
+  lj_ir_ggfload(J, IRT_NUM, (uintptr_t)LJ_KSIMD(J, idx) - (uintptr_t)J2GG(J))
+
+/* Access to constants. */
+LJ_FUNC void lj_ir_kvalue(lua_State *L, TValue *tv, const IRIns *ir);
+
+/* Convert IR operand types. */
+LJ_FUNC TRef LJ_FASTCALL lj_ir_tonumber(jit_State *J, TRef tr);
+LJ_FUNC TRef LJ_FASTCALL lj_ir_tonum(jit_State *J, TRef tr);
+LJ_FUNC TRef LJ_FASTCALL lj_ir_tostr(jit_State *J, TRef tr);
+
+/* Miscellaneous IR ops. */
+LJ_FUNC int lj_ir_numcmp(lua_Number a, lua_Number b, IROp op);
+LJ_FUNC int lj_ir_strcmp(GCstr *a, GCstr *b, IROp op);
+LJ_FUNC void lj_ir_rollback(jit_State *J, IRRef ref);
+
+/* Emit IR instructions with on-the-fly optimizations. */
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fold(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_cse(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_cselim(jit_State *J, IRRef lim);
+
+/* Special return values for the fold functions. */
+enum {
+  NEXTFOLD,		/* Couldn't fold, pass on. */
+  RETRYFOLD,		/* Retry fold with modified fins. */
+  KINTFOLD,		/* Return ref for int constant in fins->i. */
+  FAILFOLD,		/* Guard would always fail. */
+  DROPFOLD,		/* Guard eliminated. */
+  MAX_FOLD
+};
+
+#define INTFOLD(k)	((J->fold.ins.i = (k)), (TRef)KINTFOLD)
+#define INT64FOLD(k)	(lj_ir_kint64(J, (k)))
+#define CONDFOLD(cond)	((TRef)FAILFOLD + (TRef)(cond))
+#define LEFTFOLD	(J->fold.ins.op1)
+#define RIGHTFOLD	(J->fold.ins.op2)
+#define CSEFOLD		(lj_opt_cse(J))
+#define EMITFOLD	(lj_ir_emit(J))
+
+/* Load/store forwarding. */
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fwd_aload(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fwd_hload(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fwd_uload(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fwd_fload(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fwd_xload(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fwd_alen(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_fwd_hrefk(jit_State *J);
+LJ_FUNC int LJ_FASTCALL lj_opt_fwd_href_nokey(jit_State *J);
+LJ_FUNC int LJ_FASTCALL lj_opt_fwd_tptr(jit_State *J, IRRef lim);
+LJ_FUNC int LJ_FASTCALL lj_opt_fwd_sbuf(jit_State *J, IRRef lim);
+LJ_FUNC int lj_opt_fwd_wasnonnil(jit_State *J, IROpT loadop, IRRef xref);
+
+/* Dead-store elimination. */
+LJ_FUNC TRef LJ_FASTCALL lj_opt_dse_ahstore(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_dse_ustore(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_dse_fstore(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_dse_xstore(jit_State *J);
+
+/* Narrowing. */
+LJ_FUNC TRef LJ_FASTCALL lj_opt_narrow_convert(jit_State *J);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_narrow_index(jit_State *J, TRef key);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_narrow_toint(jit_State *J, TRef tr);
+LJ_FUNC TRef LJ_FASTCALL lj_opt_narrow_tobit(jit_State *J, TRef tr);
+#if LJ_HASFFI
+LJ_FUNC TRef LJ_FASTCALL lj_opt_narrow_cindex(jit_State *J, TRef key);
+#endif
+LJ_FUNC TRef lj_opt_narrow_arith(jit_State *J, TRef rb, TRef rc,
+				 TValue *vb, TValue *vc, IROp op);
+LJ_FUNC TRef lj_opt_narrow_unm(jit_State *J, TRef rc, TValue *vc);
+LJ_FUNC TRef lj_opt_narrow_mod(jit_State *J, TRef rb, TRef rc, TValue *vb, TValue *vc);
+LJ_FUNC IRType lj_opt_narrow_forl(jit_State *J, cTValue *forbase);
+
+/* Optimization passes. */
+LJ_FUNC void lj_opt_dce(jit_State *J);
+LJ_FUNC int lj_opt_loop(jit_State *J);
+#if LJ_SOFTFP32 || (LJ_32 && LJ_HASFFI)
+LJ_FUNC void lj_opt_split(jit_State *J);
+#else
+#define lj_opt_split(J)		UNUSED(J)
+#endif
+LJ_FUNC void lj_opt_sink(jit_State *J);
+
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_jit.h b/libs/luajit-cmake/luajit/src/lj_jit.h
new file mode 100644
index 0000000..32b3861
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_jit.h
@@ -0,0 +1,528 @@
+/*
+** Common definitions for the JIT compiler.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_JIT_H
+#define _LJ_JIT_H
+
+#include "lj_obj.h"
+#if LJ_HASJIT
+#include "lj_ir.h"
+
+/* -- JIT engine flags ---------------------------------------------------- */
+
+/* General JIT engine flags. 4 bits. */
+#define JIT_F_ON		0x00000001
+
+/* CPU-specific JIT engine flags. 12 bits. Flags and strings must match. */
+#define JIT_F_CPU		0x00000010
+
+#if LJ_TARGET_X86ORX64
+
+#define JIT_F_SSE3		(JIT_F_CPU << 0)
+#define JIT_F_SSE4_1		(JIT_F_CPU << 1)
+#define JIT_F_BMI2		(JIT_F_CPU << 2)
+
+
+#define JIT_F_CPUSTRING		"\4SSE3\6SSE4.1\4BMI2"
+
+#elif LJ_TARGET_ARM
+
+#define JIT_F_ARMV6_		(JIT_F_CPU << 0)
+#define JIT_F_ARMV6T2_		(JIT_F_CPU << 1)
+#define JIT_F_ARMV7		(JIT_F_CPU << 2)
+#define JIT_F_ARMV8		(JIT_F_CPU << 3)
+#define JIT_F_VFPV2		(JIT_F_CPU << 4)
+#define JIT_F_VFPV3		(JIT_F_CPU << 5)
+
+#define JIT_F_ARMV6		(JIT_F_ARMV6_|JIT_F_ARMV6T2_|JIT_F_ARMV7|JIT_F_ARMV8)
+#define JIT_F_ARMV6T2		(JIT_F_ARMV6T2_|JIT_F_ARMV7|JIT_F_ARMV8)
+#define JIT_F_VFP		(JIT_F_VFPV2|JIT_F_VFPV3)
+
+#define JIT_F_CPUSTRING		"\5ARMv6\7ARMv6T2\5ARMv7\5ARMv8\5VFPv2\5VFPv3"
+
+#elif LJ_TARGET_PPC
+
+#define JIT_F_SQRT		(JIT_F_CPU << 0)
+#define JIT_F_ROUND		(JIT_F_CPU << 1)
+
+#define JIT_F_CPUSTRING		"\4SQRT\5ROUND"
+
+#elif LJ_TARGET_MIPS
+
+#define JIT_F_MIPSXXR2		(JIT_F_CPU << 0)
+
+#if LJ_TARGET_MIPS32
+#if LJ_TARGET_MIPSR6
+#define JIT_F_CPUSTRING		"\010MIPS32R6"
+#else
+#define JIT_F_CPUSTRING		"\010MIPS32R2"
+#endif
+#else
+#if LJ_TARGET_MIPSR6
+#define JIT_F_CPUSTRING		"\010MIPS64R6"
+#else
+#define JIT_F_CPUSTRING		"\010MIPS64R2"
+#endif
+#endif
+
+#else
+
+#define JIT_F_CPUSTRING		""
+
+#endif
+
+/* Optimization flags. 12 bits. */
+#define JIT_F_OPT		0x00010000
+#define JIT_F_OPT_MASK		0x0fff0000
+
+#define JIT_F_OPT_FOLD		(JIT_F_OPT << 0)
+#define JIT_F_OPT_CSE		(JIT_F_OPT << 1)
+#define JIT_F_OPT_DCE		(JIT_F_OPT << 2)
+#define JIT_F_OPT_FWD		(JIT_F_OPT << 3)
+#define JIT_F_OPT_DSE		(JIT_F_OPT << 4)
+#define JIT_F_OPT_NARROW	(JIT_F_OPT << 5)
+#define JIT_F_OPT_LOOP		(JIT_F_OPT << 6)
+#define JIT_F_OPT_ABC		(JIT_F_OPT << 7)
+#define JIT_F_OPT_SINK		(JIT_F_OPT << 8)
+#define JIT_F_OPT_FUSE		(JIT_F_OPT << 9)
+
+/* Optimizations names for -O. Must match the order above. */
+#define JIT_F_OPTSTRING	\
+  "\4fold\3cse\3dce\3fwd\3dse\6narrow\4loop\3abc\4sink\4fuse"
+
+/* Optimization levels set a fixed combination of flags. */
+#define JIT_F_OPT_0	0
+#define JIT_F_OPT_1	(JIT_F_OPT_FOLD|JIT_F_OPT_CSE|JIT_F_OPT_DCE)
+#define JIT_F_OPT_2	(JIT_F_OPT_1|JIT_F_OPT_NARROW|JIT_F_OPT_LOOP)
+#define JIT_F_OPT_3	(JIT_F_OPT_2|\
+  JIT_F_OPT_FWD|JIT_F_OPT_DSE|JIT_F_OPT_ABC|JIT_F_OPT_SINK|JIT_F_OPT_FUSE)
+#define JIT_F_OPT_DEFAULT	JIT_F_OPT_3
+
+/* -- JIT engine parameters ----------------------------------------------- */
+
+#if LJ_TARGET_WINDOWS || LJ_64
+/* See: http://blogs.msdn.com/oldnewthing/archive/2003/10/08/55239.aspx */
+#define JIT_P_sizemcode_DEFAULT		64
+#else
+/* Could go as low as 4K, but the mmap() overhead would be rather high. */
+#define JIT_P_sizemcode_DEFAULT		32
+#endif
+
+/* Optimization parameters and their defaults. Length is a char in octal! */
+#define JIT_PARAMDEF(_) \
+  _(\010, maxtrace,	1000)	/* Max. # of traces in cache. */ \
+  _(\011, maxrecord,	4000)	/* Max. # of recorded IR instructions. */ \
+  _(\012, maxirconst,	500)	/* Max. # of IR constants of a trace. */ \
+  _(\007, maxside,	100)	/* Max. # of side traces of a root trace. */ \
+  _(\007, maxsnap,	500)	/* Max. # of snapshots for a trace. */ \
+  _(\011, minstitch,	0)	/* Min. # of IR ins for a stitched trace. */ \
+  \
+  _(\007, hotloop,	56)	/* # of iter. to detect a hot loop/call. */ \
+  _(\007, hotexit,	10)	/* # of taken exits to start a side trace. */ \
+  _(\007, tryside,	4)	/* # of attempts to compile a side trace. */ \
+  \
+  _(\012, instunroll,	4)	/* Max. unroll for instable loops. */ \
+  _(\012, loopunroll,	15)	/* Max. unroll for loop ops in side traces. */ \
+  _(\012, callunroll,	3)	/* Max. unroll for recursive calls. */ \
+  _(\011, recunroll,	2)	/* Min. unroll for true recursion. */ \
+  \
+  /* Size of each machine code area (in KBytes). */ \
+  _(\011, sizemcode,	JIT_P_sizemcode_DEFAULT) \
+  /* Max. total size of all machine code areas (in KBytes). */ \
+  _(\010, maxmcode,	512) \
+  /* End of list. */
+
+enum {
+#define JIT_PARAMENUM(len, name, value)	JIT_P_##name,
+JIT_PARAMDEF(JIT_PARAMENUM)
+#undef JIT_PARAMENUM
+  JIT_P__MAX
+};
+
+#define JIT_PARAMSTR(len, name, value)	#len #name
+#define JIT_P_STRING	JIT_PARAMDEF(JIT_PARAMSTR)
+
+/* -- JIT engine data structures ------------------------------------------ */
+
+/* Trace compiler state. */
+typedef enum {
+  LJ_TRACE_IDLE,	/* Trace compiler idle. */
+  LJ_TRACE_ACTIVE = 0x10,
+  LJ_TRACE_RECORD,	/* Bytecode recording active. */
+  LJ_TRACE_RECORD_1ST,	/* Record 1st instruction, too. */
+  LJ_TRACE_START,	/* New trace started. */
+  LJ_TRACE_END,		/* End of trace. */
+  LJ_TRACE_ASM,		/* Assemble trace. */
+  LJ_TRACE_ERR		/* Trace aborted with error. */
+} TraceState;
+
+/* Post-processing action. */
+typedef enum {
+  LJ_POST_NONE,		/* No action. */
+  LJ_POST_FIXCOMP,	/* Fixup comparison and emit pending guard. */
+  LJ_POST_FIXGUARD,	/* Fixup and emit pending guard. */
+  LJ_POST_FIXGUARDSNAP,	/* Fixup and emit pending guard and snapshot. */
+  LJ_POST_FIXBOOL,	/* Fixup boolean result. */
+  LJ_POST_FIXCONST,	/* Fixup constant results. */
+  LJ_POST_FFRETRY	/* Suppress recording of retried fast functions. */
+} PostProc;
+
+/* Machine code type. */
+#if LJ_TARGET_X86ORX64
+typedef uint8_t MCode;
+#else
+typedef uint32_t MCode;
+#endif
+
+/* Linked list of MCode areas. */
+typedef struct MCLink {
+  MCode *next;		/* Next area. */
+  size_t size;		/* Size of current area. */
+} MCLink;
+
+/* Stack snapshot header. */
+typedef struct SnapShot {
+  uint32_t mapofs;	/* Offset into snapshot map. */
+  IRRef1 ref;		/* First IR ref for this snapshot. */
+  uint16_t mcofs;	/* Offset into machine code in MCode units. */
+  uint8_t nslots;	/* Number of valid slots. */
+  uint8_t topslot;	/* Maximum frame extent. */
+  uint8_t nent;		/* Number of compressed entries. */
+  uint8_t count;	/* Count of taken exits for this snapshot. */
+} SnapShot;
+
+#define SNAPCOUNT_DONE	255	/* Already compiled and linked a side trace. */
+
+/* Compressed snapshot entry. */
+typedef uint32_t SnapEntry;
+
+#define SNAP_FRAME		0x010000	/* Frame slot. */
+#define SNAP_CONT		0x020000	/* Continuation slot. */
+#define SNAP_NORESTORE		0x040000	/* No need to restore slot. */
+#define SNAP_SOFTFPNUM		0x080000	/* Soft-float number. */
+#define SNAP_KEYINDEX		0x100000	/* Traversal key index. */
+LJ_STATIC_ASSERT(SNAP_FRAME == TREF_FRAME);
+LJ_STATIC_ASSERT(SNAP_CONT == TREF_CONT);
+LJ_STATIC_ASSERT(SNAP_KEYINDEX == TREF_KEYINDEX);
+
+#define SNAP(slot, flags, ref)	(((SnapEntry)(slot) << 24) + (flags) + (ref))
+#define SNAP_TR(slot, tr) \
+  (((SnapEntry)(slot) << 24) + \
+   ((tr) & (TREF_KEYINDEX|TREF_CONT|TREF_FRAME|TREF_REFMASK)))
+#if !LJ_FR2
+#define SNAP_MKPC(pc)		((SnapEntry)u32ptr(pc))
+#endif
+#define SNAP_MKFTSZ(ftsz)	((SnapEntry)(ftsz))
+#define snap_ref(sn)		((sn) & 0xffff)
+#define snap_slot(sn)		((BCReg)((sn) >> 24))
+#define snap_isframe(sn)	((sn) & SNAP_FRAME)
+#define snap_setref(sn, ref)	(((sn) & (0xffff0000&~SNAP_NORESTORE)) | (ref))
+
+static LJ_AINLINE const BCIns *snap_pc(SnapEntry *sn)
+{
+#if LJ_FR2
+  uint64_t pcbase;
+  memcpy(&pcbase, sn, sizeof(uint64_t));
+  return (const BCIns *)(pcbase >> 8);
+#else
+  return (const BCIns *)(uintptr_t)*sn;
+#endif
+}
+
+/* Snapshot and exit numbers. */
+typedef uint32_t SnapNo;
+typedef uint32_t ExitNo;
+
+/* Trace number. */
+typedef uint32_t TraceNo;	/* Used to pass around trace numbers. */
+typedef uint16_t TraceNo1;	/* Stored trace number. */
+
+/* Type of link. ORDER LJ_TRLINK */
+typedef enum {
+  LJ_TRLINK_NONE,		/* Incomplete trace. No link, yet. */
+  LJ_TRLINK_ROOT,		/* Link to other root trace. */
+  LJ_TRLINK_LOOP,		/* Loop to same trace. */
+  LJ_TRLINK_TAILREC,		/* Tail-recursion. */
+  LJ_TRLINK_UPREC,		/* Up-recursion. */
+  LJ_TRLINK_DOWNREC,		/* Down-recursion. */
+  LJ_TRLINK_INTERP,		/* Fallback to interpreter. */
+  LJ_TRLINK_RETURN,		/* Return to interpreter. */
+  LJ_TRLINK_STITCH		/* Trace stitching. */
+} TraceLink;
+
+/* Trace object. */
+typedef struct GCtrace {
+  GCHeader;
+  uint16_t nsnap;	/* Number of snapshots. */
+  IRRef nins;		/* Next IR instruction. Biased with REF_BIAS. */
+#if LJ_GC64
+  uint32_t unused_gc64;
+#endif
+  GCRef gclist;
+  IRIns *ir;		/* IR instructions/constants. Biased with REF_BIAS. */
+  IRRef nk;		/* Lowest IR constant. Biased with REF_BIAS. */
+  uint32_t nsnapmap;	/* Number of snapshot map elements. */
+  SnapShot *snap;	/* Snapshot array. */
+  SnapEntry *snapmap;	/* Snapshot map. */
+  GCRef startpt;	/* Starting prototype. */
+  MRef startpc;		/* Bytecode PC of starting instruction. */
+  BCIns startins;	/* Original bytecode of starting instruction. */
+  MSize szmcode;	/* Size of machine code. */
+  MCode *mcode;		/* Start of machine code. */
+  MSize mcloop;		/* Offset of loop start in machine code. */
+  uint16_t nchild;	/* Number of child traces (root trace only). */
+  uint16_t spadjust;	/* Stack pointer adjustment (offset in bytes). */
+  TraceNo1 traceno;	/* Trace number. */
+  TraceNo1 link;	/* Linked trace (or self for loops). */
+  TraceNo1 root;	/* Root trace of side trace (or 0 for root traces). */
+  TraceNo1 nextroot;	/* Next root trace for same prototype. */
+  TraceNo1 nextside;	/* Next side trace of same root trace. */
+  uint8_t sinktags;	/* Trace has SINK tags. */
+  uint8_t topslot;	/* Top stack slot already checked to be allocated. */
+  uint8_t linktype;	/* Type of link. */
+  uint8_t unused1;
+#ifdef LUAJIT_USE_GDBJIT
+  void *gdbjit_entry;	/* GDB JIT entry. */
+#endif
+} GCtrace;
+
+#define gco2trace(o)	check_exp((o)->gch.gct == ~LJ_TTRACE, (GCtrace *)(o))
+#define traceref(J, n) \
+  check_exp((n)>0 && (MSize)(n)<J->sizetrace, (GCtrace *)gcref(J->trace[(n)]))
+
+LJ_STATIC_ASSERT(offsetof(GChead, gclist) == offsetof(GCtrace, gclist));
+
+static LJ_AINLINE MSize snap_nextofs(GCtrace *T, SnapShot *snap)
+{
+  if (snap+1 == &T->snap[T->nsnap])
+    return T->nsnapmap;
+  else
+    return (snap+1)->mapofs;
+}
+
+/* Round-robin penalty cache for bytecodes leading to aborted traces. */
+typedef struct HotPenalty {
+  MRef pc;		/* Starting bytecode PC. */
+  uint16_t val;		/* Penalty value, i.e. hotcount start. */
+  uint16_t reason;	/* Abort reason (really TraceErr). */
+} HotPenalty;
+
+#define PENALTY_SLOTS	64	/* Penalty cache slot. Must be a power of 2. */
+#define PENALTY_MIN	(36*2)	/* Minimum penalty value. */
+#define PENALTY_MAX	60000	/* Maximum penalty value. */
+#define PENALTY_RNDBITS	4	/* # of random bits to add to penalty value. */
+
+/* Round-robin backpropagation cache for narrowing conversions. */
+typedef struct BPropEntry {
+  IRRef1 key;		/* Key: original reference. */
+  IRRef1 val;		/* Value: reference after conversion. */
+  IRRef mode;		/* Mode for this entry (currently IRCONV_*). */
+} BPropEntry;
+
+/* Number of slots for the backpropagation cache. Must be a power of 2. */
+#define BPROP_SLOTS	16
+
+/* Scalar evolution analysis cache. */
+typedef struct ScEvEntry {
+  MRef pc;		/* Bytecode PC of FORI. */
+  IRRef1 idx;		/* Index reference. */
+  IRRef1 start;		/* Constant start reference. */
+  IRRef1 stop;		/* Constant stop reference. */
+  IRRef1 step;		/* Constant step reference. */
+  IRType1 t;		/* Scalar type. */
+  uint8_t dir;		/* Direction. 1: +, 0: -. */
+} ScEvEntry;
+
+/* Reverse bytecode map (IRRef -> PC). Only for selected instructions. */
+typedef struct RBCHashEntry {
+  MRef pc;		/* Bytecode PC. */
+  GCRef pt;		/* Prototype. */
+  IRRef ref;		/* IR reference. */
+} RBCHashEntry;
+
+/* Number of slots in the reverse bytecode hash table. Must be a power of 2. */
+#define RBCHASH_SLOTS	8
+
+/* 128 bit SIMD constants. */
+enum {
+  LJ_KSIMD_ABS,
+  LJ_KSIMD_NEG,
+  LJ_KSIMD__MAX
+};
+
+enum {
+#if LJ_TARGET_X86ORX64
+  LJ_K64_TOBIT,		/* 2^52 + 2^51 */
+  LJ_K64_2P64,		/* 2^64 */
+  LJ_K64_M2P64,		/* -2^64 */
+#if LJ_32
+  LJ_K64_M2P64_31,	/* -2^64 or -2^31 */
+#else
+  LJ_K64_M2P64_31 = LJ_K64_M2P64,
+#endif
+#endif
+#if LJ_TARGET_MIPS
+  LJ_K64_2P31,		/* 2^31 */
+#if LJ_64
+  LJ_K64_2P63,		/* 2^63 */
+  LJ_K64_M2P64,		/* -2^64 */
+#endif
+#endif
+  LJ_K64__MAX,
+};
+#define LJ_K64__USED	(LJ_TARGET_X86ORX64 || LJ_TARGET_MIPS)
+
+enum {
+#if LJ_TARGET_X86ORX64
+  LJ_K32_M2P64_31,	/* -2^64 or -2^31 */
+#endif
+#if LJ_TARGET_PPC
+  LJ_K32_2P52_2P31,	/* 2^52 + 2^31 */
+  LJ_K32_2P52,		/* 2^52 */
+#endif
+#if LJ_TARGET_PPC || LJ_TARGET_MIPS
+  LJ_K32_2P31,		/* 2^31 */
+#endif
+#if LJ_TARGET_MIPS64
+  LJ_K32_2P63,		/* 2^63 */
+  LJ_K32_M2P64,		/* -2^64 */
+#endif
+  LJ_K32__MAX
+};
+#define LJ_K32__USED	(LJ_TARGET_X86ORX64 || LJ_TARGET_PPC || LJ_TARGET_MIPS)
+
+/* Get 16 byte aligned pointer to SIMD constant. */
+#define LJ_KSIMD(J, n) \
+  ((TValue *)(((intptr_t)&J->ksimd[2*(n)] + 15) & ~(intptr_t)15))
+
+/* Set/reset flag to activate the SPLIT pass for the current trace. */
+#if LJ_SOFTFP32 || (LJ_32 && LJ_HASFFI)
+#define lj_needsplit(J)		(J->needsplit = 1)
+#define lj_resetsplit(J)	(J->needsplit = 0)
+#else
+#define lj_needsplit(J)		UNUSED(J)
+#define lj_resetsplit(J)	UNUSED(J)
+#endif
+
+/* Fold state is used to fold instructions on-the-fly. */
+typedef struct FoldState {
+  IRIns ins;		/* Currently emitted instruction. */
+  IRIns left[2];	/* Instruction referenced by left operand. */
+  IRIns right[2];	/* Instruction referenced by right operand. */
+} FoldState;
+
+/* JIT compiler state. */
+typedef struct jit_State {
+  GCtrace cur;		/* Current trace. */
+  GCtrace *curfinal;	/* Final address of current trace (set during asm). */
+
+  lua_State *L;		/* Current Lua state. */
+  const BCIns *pc;	/* Current PC. */
+  GCfunc *fn;		/* Current function. */
+  GCproto *pt;		/* Current prototype. */
+  TRef *base;		/* Current frame base, points into J->slots. */
+
+  uint32_t flags;	/* JIT engine flags. */
+  BCReg maxslot;	/* Relative to baseslot. */
+  BCReg baseslot;	/* Current frame base, offset into J->slots. */
+
+  uint8_t mergesnap;	/* Allowed to merge with next snapshot. */
+  uint8_t needsnap;	/* Need snapshot before recording next bytecode. */
+  IRType1 guardemit;	/* Accumulated IRT_GUARD for emitted instructions. */
+  uint8_t bcskip;	/* Number of bytecode instructions to skip. */
+
+  FoldState fold;	/* Fold state. */
+
+  const BCIns *bc_min;	/* Start of allowed bytecode range for root trace. */
+  MSize bc_extent;	/* Extent of the range. */
+
+  TraceState state;	/* Trace compiler state. */
+
+  int32_t instunroll;	/* Unroll counter for instable loops. */
+  int32_t loopunroll;	/* Unroll counter for loop ops in side traces. */
+  int32_t tailcalled;	/* Number of successive tailcalls. */
+  int32_t framedepth;	/* Current frame depth. */
+  int32_t retdepth;	/* Return frame depth (count of RETF). */
+
+#if LJ_K32__USED
+  uint32_t k32[LJ_K32__MAX];  /* Common 4 byte constants used by backends. */
+#endif
+  TValue ksimd[LJ_KSIMD__MAX*2+1];  /* 16 byte aligned SIMD constants. */
+#if LJ_K64__USED
+  TValue k64[LJ_K64__MAX];  /* Common 8 byte constants. */
+#endif
+
+  IRIns *irbuf;		/* Temp. IR instruction buffer. Biased with REF_BIAS. */
+  IRRef irtoplim;	/* Upper limit of instuction buffer (biased). */
+  IRRef irbotlim;	/* Lower limit of instuction buffer (biased). */
+  IRRef loopref;	/* Last loop reference or ref of final LOOP (or 0). */
+
+  MSize sizesnap;	/* Size of temp. snapshot buffer. */
+  SnapShot *snapbuf;	/* Temp. snapshot buffer. */
+  SnapEntry *snapmapbuf;  /* Temp. snapshot map buffer. */
+  MSize sizesnapmap;	/* Size of temp. snapshot map buffer. */
+
+  PostProc postproc;	/* Required post-processing after execution. */
+#if LJ_SOFTFP32 || (LJ_32 && LJ_HASFFI)
+  uint8_t needsplit;	/* Need SPLIT pass. */
+#endif
+  uint8_t retryrec;	/* Retry recording. */
+
+  GCRef *trace;		/* Array of traces. */
+  TraceNo freetrace;	/* Start of scan for next free trace. */
+  MSize sizetrace;	/* Size of trace array. */
+  IRRef1 ktrace;	/* Reference to KGC with GCtrace. */
+
+  IRRef1 chain[IR__MAX];  /* IR instruction skip-list chain anchors. */
+  TRef slot[LJ_MAX_JSLOTS+LJ_STACK_EXTRA];  /* Stack slot map. */
+
+  int32_t param[JIT_P__MAX];  /* JIT engine parameters. */
+
+  MCode *exitstubgroup[LJ_MAX_EXITSTUBGR];  /* Exit stub group addresses. */
+
+  HotPenalty penalty[PENALTY_SLOTS];  /* Penalty slots. */
+  uint32_t penaltyslot;	/* Round-robin index into penalty slots. */
+
+#ifdef LUAJIT_ENABLE_TABLE_BUMP
+  RBCHashEntry rbchash[RBCHASH_SLOTS];  /* Reverse bytecode map. */
+#endif
+
+  BPropEntry bpropcache[BPROP_SLOTS];  /* Backpropagation cache slots. */
+  uint32_t bpropslot;	/* Round-robin index into bpropcache slots. */
+
+  ScEvEntry scev;	/* Scalar evolution analysis cache slots. */
+
+  const BCIns *startpc;	/* Bytecode PC of starting instruction. */
+  TraceNo parent;	/* Parent of current side trace (0 for root traces). */
+  ExitNo exitno;	/* Exit number in parent of current side trace. */
+  int exitcode;		/* Exit code from unwound trace. */
+
+  BCIns *patchpc;	/* PC for pending re-patch. */
+  BCIns patchins;	/* Instruction for pending re-patch. */
+
+  int mcprot;		/* Protection of current mcode area. */
+  MCode *mcarea;	/* Base of current mcode area. */
+  MCode *mctop;		/* Top of current mcode area. */
+  MCode *mcbot;		/* Bottom of current mcode area. */
+  size_t szmcarea;	/* Size of current mcode area. */
+  size_t szallmcarea;	/* Total size of all allocated mcode areas. */
+
+  TValue errinfo;	/* Additional info element for trace errors. */
+
+#if LJ_HASPROFILE
+  GCproto *prev_pt;	/* Previous prototype. */
+  BCLine prev_line;	/* Previous line. */
+  int prof_mode;	/* Profiling mode: 0, 'f', 'l'. */
+#endif
+} jit_State;
+
+#ifdef LUA_USE_ASSERT
+#define lj_assertJ(c, ...)	lj_assertG_(J2G(J), (c), __VA_ARGS__)
+#else
+#define lj_assertJ(c, ...)	((void)J)
+#endif
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_lex.c b/libs/luajit-cmake/luajit/src/lj_lex.c
new file mode 100644
index 0000000..463a87c
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_lex.c
@@ -0,0 +1,514 @@
+/*
+** Lexical analyzer.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_lex_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#if LJ_HASFFI
+#include "lj_tab.h"
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#include "lualib.h"
+#endif
+#include "lj_state.h"
+#include "lj_lex.h"
+#include "lj_parse.h"
+#include "lj_char.h"
+#include "lj_strscan.h"
+#include "lj_strfmt.h"
+
+/* Lua lexer token names. */
+static const char *const tokennames[] = {
+#define TKSTR1(name)		#name,
+#define TKSTR2(name, sym)	#sym,
+TKDEF(TKSTR1, TKSTR2)
+#undef TKSTR1
+#undef TKSTR2
+  NULL
+};
+
+/* -- Buffer handling ----------------------------------------------------- */
+
+#define LEX_EOF			(-1)
+#define lex_iseol(ls)		(ls->c == '\n' || ls->c == '\r')
+
+/* Get more input from reader. */
+static LJ_NOINLINE LexChar lex_more(LexState *ls)
+{
+  size_t sz;
+  const char *p = ls->rfunc(ls->L, ls->rdata, &sz);
+  if (p == NULL || sz == 0) return LEX_EOF;
+  if (sz >= LJ_MAX_BUF) {
+    if (sz != ~(size_t)0) lj_err_mem(ls->L);
+    sz = ~(uintptr_t)0 - (uintptr_t)p;
+    if (sz >= LJ_MAX_BUF) sz = LJ_MAX_BUF-1;
+    ls->endmark = 1;
+  }
+  ls->pe = p + sz;
+  ls->p = p + 1;
+  return (LexChar)(uint8_t)p[0];
+}
+
+/* Get next character. */
+static LJ_AINLINE LexChar lex_next(LexState *ls)
+{
+  return (ls->c = ls->p < ls->pe ? (LexChar)(uint8_t)*ls->p++ : lex_more(ls));
+}
+
+/* Save character. */
+static LJ_AINLINE void lex_save(LexState *ls, LexChar c)
+{
+  lj_buf_putb(&ls->sb, c);
+}
+
+/* Save previous character and get next character. */
+static LJ_AINLINE LexChar lex_savenext(LexState *ls)
+{
+  lex_save(ls, ls->c);
+  return lex_next(ls);
+}
+
+/* Skip line break. Handles "\n", "\r", "\r\n" or "\n\r". */
+static void lex_newline(LexState *ls)
+{
+  LexChar old = ls->c;
+  lj_assertLS(lex_iseol(ls), "bad usage");
+  lex_next(ls);  /* Skip "\n" or "\r". */
+  if (lex_iseol(ls) && ls->c != old) lex_next(ls);  /* Skip "\n\r" or "\r\n". */
+  if (++ls->linenumber >= LJ_MAX_LINE)
+    lj_lex_error(ls, ls->tok, LJ_ERR_XLINES);
+}
+
+/* -- Scanner for terminals ----------------------------------------------- */
+
+/* Parse a number literal. */
+static void lex_number(LexState *ls, TValue *tv)
+{
+  StrScanFmt fmt;
+  LexChar c, xp = 'e';
+  lj_assertLS(lj_char_isdigit(ls->c), "bad usage");
+  if ((c = ls->c) == '0' && (lex_savenext(ls) | 0x20) == 'x')
+    xp = 'p';
+  while (lj_char_isident(ls->c) || ls->c == '.' ||
+	 ((ls->c == '-' || ls->c == '+') && (c | 0x20) == xp)) {
+    c = ls->c;
+    lex_savenext(ls);
+  }
+  lex_save(ls, '\0');
+  fmt = lj_strscan_scan((const uint8_t *)ls->sb.b, sbuflen(&ls->sb)-1, tv,
+	  (LJ_DUALNUM ? STRSCAN_OPT_TOINT : STRSCAN_OPT_TONUM) |
+	  (LJ_HASFFI ? (STRSCAN_OPT_LL|STRSCAN_OPT_IMAG) : 0));
+  if (LJ_DUALNUM && fmt == STRSCAN_INT) {
+    setitype(tv, LJ_TISNUM);
+  } else if (fmt == STRSCAN_NUM) {
+    /* Already in correct format. */
+#if LJ_HASFFI
+  } else if (fmt != STRSCAN_ERROR) {
+    lua_State *L = ls->L;
+    GCcdata *cd;
+    lj_assertLS(fmt == STRSCAN_I64 || fmt == STRSCAN_U64 || fmt == STRSCAN_IMAG,
+		"unexpected number format %d", fmt);
+    ctype_loadffi(L);
+    if (fmt == STRSCAN_IMAG) {
+      cd = lj_cdata_new_(L, CTID_COMPLEX_DOUBLE, 2*sizeof(double));
+      ((double *)cdataptr(cd))[0] = 0;
+      ((double *)cdataptr(cd))[1] = numV(tv);
+    } else {
+      cd = lj_cdata_new_(L, fmt==STRSCAN_I64 ? CTID_INT64 : CTID_UINT64, 8);
+      *(uint64_t *)cdataptr(cd) = tv->u64;
+    }
+    lj_parse_keepcdata(ls, tv, cd);
+#endif
+  } else {
+    lj_assertLS(fmt == STRSCAN_ERROR,
+		"unexpected number format %d", fmt);
+    lj_lex_error(ls, TK_number, LJ_ERR_XNUMBER);
+  }
+}
+
+/* Skip equal signs for "[=...=[" and "]=...=]" and return their count. */
+static int lex_skipeq(LexState *ls)
+{
+  int count = 0;
+  LexChar s = ls->c;
+  lj_assertLS(s == '[' || s == ']', "bad usage");
+  while (lex_savenext(ls) == '=' && count < 0x20000000)
+    count++;
+  return (ls->c == s) ? count : (-count) - 1;
+}
+
+/* Parse a long string or long comment (tv set to NULL). */
+static void lex_longstring(LexState *ls, TValue *tv, int sep)
+{
+  lex_savenext(ls);  /* Skip second '['. */
+  if (lex_iseol(ls))  /* Skip initial newline. */
+    lex_newline(ls);
+  for (;;) {
+    switch (ls->c) {
+    case LEX_EOF:
+      lj_lex_error(ls, TK_eof, tv ? LJ_ERR_XLSTR : LJ_ERR_XLCOM);
+      break;
+    case ']':
+      if (lex_skipeq(ls) == sep) {
+	lex_savenext(ls);  /* Skip second ']'. */
+	goto endloop;
+      }
+      break;
+    case '\n':
+    case '\r':
+      lex_save(ls, '\n');
+      lex_newline(ls);
+      if (!tv) lj_buf_reset(&ls->sb);  /* Don't waste space for comments. */
+      break;
+    default:
+      lex_savenext(ls);
+      break;
+    }
+  } endloop:
+  if (tv) {
+    GCstr *str = lj_parse_keepstr(ls, ls->sb.b + (2 + (MSize)sep),
+				      sbuflen(&ls->sb) - 2*(2 + (MSize)sep));
+    setstrV(ls->L, tv, str);
+  }
+}
+
+/* Parse a string. */
+static void lex_string(LexState *ls, TValue *tv)
+{
+  LexChar delim = ls->c;  /* Delimiter is '\'' or '"'. */
+  lex_savenext(ls);
+  while (ls->c != delim) {
+    switch (ls->c) {
+    case LEX_EOF:
+      lj_lex_error(ls, TK_eof, LJ_ERR_XSTR);
+      continue;
+    case '\n':
+    case '\r':
+      lj_lex_error(ls, TK_string, LJ_ERR_XSTR);
+      continue;
+    case '\\': {
+      LexChar c = lex_next(ls);  /* Skip the '\\'. */
+      switch (c) {
+      case 'a': c = '\a'; break;
+      case 'b': c = '\b'; break;
+      case 'f': c = '\f'; break;
+      case 'n': c = '\n'; break;
+      case 'r': c = '\r'; break;
+      case 't': c = '\t'; break;
+      case 'v': c = '\v'; break;
+      case 'x':  /* Hexadecimal escape '\xXX'. */
+	c = (lex_next(ls) & 15u) << 4;
+	if (!lj_char_isdigit(ls->c)) {
+	  if (!lj_char_isxdigit(ls->c)) goto err_xesc;
+	  c += 9 << 4;
+	}
+	c += (lex_next(ls) & 15u);
+	if (!lj_char_isdigit(ls->c)) {
+	  if (!lj_char_isxdigit(ls->c)) goto err_xesc;
+	  c += 9;
+	}
+	break;
+      case 'u':  /* Unicode escape '\u{XX...}'. */
+	if (lex_next(ls) != '{') goto err_xesc;
+	lex_next(ls);
+	c = 0;
+	do {
+	  c = (c << 4) | (ls->c & 15u);
+	  if (!lj_char_isdigit(ls->c)) {
+	    if (!lj_char_isxdigit(ls->c)) goto err_xesc;
+	    c += 9;
+	  }
+	  if (c >= 0x110000) goto err_xesc;  /* Out of Unicode range. */
+	} while (lex_next(ls) != '}');
+	if (c < 0x800) {
+	  if (c < 0x80) break;
+	  lex_save(ls, 0xc0 | (c >> 6));
+	} else {
+	  if (c >= 0x10000) {
+	    lex_save(ls, 0xf0 | (c >> 18));
+	    lex_save(ls, 0x80 | ((c >> 12) & 0x3f));
+	  } else {
+	    if (c >= 0xd800 && c < 0xe000) goto err_xesc;  /* No surrogates. */
+	    lex_save(ls, 0xe0 | (c >> 12));
+	  }
+	  lex_save(ls, 0x80 | ((c >> 6) & 0x3f));
+	}
+	c = 0x80 | (c & 0x3f);
+	break;
+      case 'z':  /* Skip whitespace. */
+	lex_next(ls);
+	while (lj_char_isspace(ls->c))
+	  if (lex_iseol(ls)) lex_newline(ls); else lex_next(ls);
+	continue;
+      case '\n': case '\r': lex_save(ls, '\n'); lex_newline(ls); continue;
+      case '\\': case '\"': case '\'': break;
+      case LEX_EOF: continue;
+      default:
+	if (!lj_char_isdigit(c))
+	  goto err_xesc;
+	c -= '0';  /* Decimal escape '\ddd'. */
+	if (lj_char_isdigit(lex_next(ls))) {
+	  c = c*10 + (ls->c - '0');
+	  if (lj_char_isdigit(lex_next(ls))) {
+	    c = c*10 + (ls->c - '0');
+	    if (c > 255) {
+	    err_xesc:
+	      lj_lex_error(ls, TK_string, LJ_ERR_XESC);
+	    }
+	    lex_next(ls);
+	  }
+	}
+	lex_save(ls, c);
+	continue;
+      }
+      lex_save(ls, c);
+      lex_next(ls);
+      continue;
+      }
+    default:
+      lex_savenext(ls);
+      break;
+    }
+  }
+  lex_savenext(ls);  /* Skip trailing delimiter. */
+  setstrV(ls->L, tv,
+	  lj_parse_keepstr(ls, ls->sb.b+1, sbuflen(&ls->sb)-2));
+}
+
+/* -- Main lexical scanner ------------------------------------------------ */
+
+/* Get next lexical token. */
+static LexToken lex_scan(LexState *ls, TValue *tv)
+{
+  lj_buf_reset(&ls->sb);
+  for (;;) {
+    if (lj_char_isident(ls->c)) {
+      GCstr *s;
+      if (lj_char_isdigit(ls->c)) {  /* Numeric literal. */
+	lex_number(ls, tv);
+	return TK_number;
+      }
+      /* Identifier or reserved word. */
+      do {
+	lex_savenext(ls);
+      } while (lj_char_isident(ls->c));
+      s = lj_parse_keepstr(ls, ls->sb.b, sbuflen(&ls->sb));
+      setstrV(ls->L, tv, s);
+      if (s->reserved > 0)  /* Reserved word? */
+	return TK_OFS + s->reserved;
+      return TK_name;
+    }
+    switch (ls->c) {
+    case '\n':
+    case '\r':
+      lex_newline(ls);
+      continue;
+    case ' ':
+    case '\t':
+    case '\v':
+    case '\f':
+      lex_next(ls);
+      continue;
+    case '-':
+      lex_next(ls);
+      if (ls->c != '-') return '-';
+      lex_next(ls);
+      if (ls->c == '[') {  /* Long comment "--[=*[...]=*]". */
+	int sep = lex_skipeq(ls);
+	lj_buf_reset(&ls->sb);  /* `lex_skipeq' may dirty the buffer */
+	if (sep >= 0) {
+	  lex_longstring(ls, NULL, sep);
+	  lj_buf_reset(&ls->sb);
+	  continue;
+	}
+      }
+      /* Short comment "--.*\n". */
+      while (!lex_iseol(ls) && ls->c != LEX_EOF)
+	lex_next(ls);
+      continue;
+    case '[': {
+      int sep = lex_skipeq(ls);
+      if (sep >= 0) {
+	lex_longstring(ls, tv, sep);
+	return TK_string;
+      } else if (sep == -1) {
+	return '[';
+      } else {
+	lj_lex_error(ls, TK_string, LJ_ERR_XLDELIM);
+	continue;
+      }
+      }
+    case '=':
+      lex_next(ls);
+      if (ls->c != '=') return '='; else { lex_next(ls); return TK_eq; }
+    case '<':
+      lex_next(ls);
+      if (ls->c != '=') return '<'; else { lex_next(ls); return TK_le; }
+    case '>':
+      lex_next(ls);
+      if (ls->c != '=') return '>'; else { lex_next(ls); return TK_ge; }
+    case '~':
+      lex_next(ls);
+      if (ls->c != '=') return '~'; else { lex_next(ls); return TK_ne; }
+    case ':':
+      lex_next(ls);
+      if (ls->c != ':') return ':'; else { lex_next(ls); return TK_label; }
+    case '"':
+    case '\'':
+      lex_string(ls, tv);
+      return TK_string;
+    case '.':
+      if (lex_savenext(ls) == '.') {
+	lex_next(ls);
+	if (ls->c == '.') {
+	  lex_next(ls);
+	  return TK_dots;   /* ... */
+	}
+	return TK_concat;   /* .. */
+      } else if (!lj_char_isdigit(ls->c)) {
+	return '.';
+      } else {
+	lex_number(ls, tv);
+	return TK_number;
+      }
+    case LEX_EOF:
+      return TK_eof;
+    default: {
+      LexChar c = ls->c;
+      lex_next(ls);
+      return c;  /* Single-char tokens (+ - / ...). */
+    }
+    }
+  }
+}
+
+/* -- Lexer API ----------------------------------------------------------- */
+
+/* Setup lexer state. */
+int lj_lex_setup(lua_State *L, LexState *ls)
+{
+  int header = 0;
+  ls->L = L;
+  ls->fs = NULL;
+  ls->pe = ls->p = NULL;
+  ls->vstack = NULL;
+  ls->sizevstack = 0;
+  ls->vtop = 0;
+  ls->bcstack = NULL;
+  ls->sizebcstack = 0;
+  ls->tok = 0;
+  ls->lookahead = TK_eof;  /* No look-ahead token. */
+  ls->linenumber = 1;
+  ls->lastline = 1;
+  ls->endmark = 0;
+  lex_next(ls);  /* Read-ahead first char. */
+  if (ls->c == 0xef && ls->p + 2 <= ls->pe && (uint8_t)ls->p[0] == 0xbb &&
+      (uint8_t)ls->p[1] == 0xbf) {  /* Skip UTF-8 BOM (if buffered). */
+    ls->p += 2;
+    lex_next(ls);
+    header = 1;
+  }
+  if (ls->c == '#') {  /* Skip POSIX #! header line. */
+    do {
+      lex_next(ls);
+      if (ls->c == LEX_EOF) return 0;
+    } while (!lex_iseol(ls));
+    lex_newline(ls);
+    header = 1;
+  }
+  if (ls->c == LUA_SIGNATURE[0]) {  /* Bytecode dump. */
+    if (header) {
+      /*
+      ** Loading bytecode with an extra header is disabled for security
+      ** reasons. This may circumvent the usual check for bytecode vs.
+      ** Lua code by looking at the first char. Since this is a potential
+      ** security violation no attempt is made to echo the chunkname either.
+      */
+      setstrV(L, L->top++, lj_err_str(L, LJ_ERR_BCBAD));
+      lj_err_throw(L, LUA_ERRSYNTAX);
+    }
+    return 1;
+  }
+  return 0;
+}
+
+/* Cleanup lexer state. */
+void lj_lex_cleanup(lua_State *L, LexState *ls)
+{
+  global_State *g = G(L);
+  lj_mem_freevec(g, ls->bcstack, ls->sizebcstack, BCInsLine);
+  lj_mem_freevec(g, ls->vstack, ls->sizevstack, VarInfo);
+  lj_buf_free(g, &ls->sb);
+}
+
+/* Return next lexical token. */
+void lj_lex_next(LexState *ls)
+{
+  ls->lastline = ls->linenumber;
+  if (LJ_LIKELY(ls->lookahead == TK_eof)) {  /* No lookahead token? */
+    ls->tok = lex_scan(ls, &ls->tokval);  /* Get next token. */
+  } else {  /* Otherwise return lookahead token. */
+    ls->tok = ls->lookahead;
+    ls->lookahead = TK_eof;
+    ls->tokval = ls->lookaheadval;
+  }
+}
+
+/* Look ahead for the next token. */
+LexToken lj_lex_lookahead(LexState *ls)
+{
+  lj_assertLS(ls->lookahead == TK_eof, "double lookahead");
+  ls->lookahead = lex_scan(ls, &ls->lookaheadval);
+  return ls->lookahead;
+}
+
+/* Convert token to string. */
+const char *lj_lex_token2str(LexState *ls, LexToken tok)
+{
+  if (tok > TK_OFS)
+    return tokennames[tok-TK_OFS-1];
+  else if (!lj_char_iscntrl(tok))
+    return lj_strfmt_pushf(ls->L, "%c", tok);
+  else
+    return lj_strfmt_pushf(ls->L, "char(%d)", tok);
+}
+
+/* Lexer error. */
+void lj_lex_error(LexState *ls, LexToken tok, ErrMsg em, ...)
+{
+  const char *tokstr;
+  va_list argp;
+  if (tok == 0) {
+    tokstr = NULL;
+  } else if (tok == TK_name || tok == TK_string || tok == TK_number) {
+    lex_save(ls, '\0');
+    tokstr = ls->sb.b;
+  } else {
+    tokstr = lj_lex_token2str(ls, tok);
+  }
+  va_start(argp, em);
+  lj_err_lex(ls->L, ls->chunkname, tokstr, ls->linenumber, em, argp);
+  va_end(argp);
+}
+
+/* Initialize strings for reserved words. */
+void lj_lex_init(lua_State *L)
+{
+  uint32_t i;
+  for (i = 0; i < TK_RESERVED; i++) {
+    GCstr *s = lj_str_newz(L, tokennames[i]);
+    fixstring(s);  /* Reserved words are never collected. */
+    s->reserved = (uint8_t)(i+1);
+  }
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_lex.h b/libs/luajit-cmake/luajit/src/lj_lex.h
new file mode 100644
index 0000000..cb5b576
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_lex.h
@@ -0,0 +1,93 @@
+/*
+** Lexical analyzer.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_LEX_H
+#define _LJ_LEX_H
+
+#include <stdarg.h>
+
+#include "lj_obj.h"
+#include "lj_err.h"
+
+/* Lua lexer tokens. */
+#define TKDEF(_, __) \
+  _(and) _(break) _(do) _(else) _(elseif) _(end) _(false) \
+  _(for) _(function) _(goto) _(if) _(in) _(local) _(nil) _(not) _(or) \
+  _(repeat) _(return) _(then) _(true) _(until) _(while) \
+  __(concat, ..) __(dots, ...) __(eq, ==) __(ge, >=) __(le, <=) __(ne, ~=) \
+  __(label, ::) __(number, <number>) __(name, <name>) __(string, <string>) \
+  __(eof, <eof>)
+
+enum {
+  TK_OFS = 256,
+#define TKENUM1(name)		TK_##name,
+#define TKENUM2(name, sym)	TK_##name,
+TKDEF(TKENUM1, TKENUM2)
+#undef TKENUM1
+#undef TKENUM2
+  TK_RESERVED = TK_while - TK_OFS
+};
+
+typedef int LexChar;	/* Lexical character. Unsigned ext. from char. */
+typedef int LexToken;	/* Lexical token. */
+
+/* Combined bytecode ins/line. Only used during bytecode generation. */
+typedef struct BCInsLine {
+  BCIns ins;		/* Bytecode instruction. */
+  BCLine line;		/* Line number for this bytecode. */
+} BCInsLine;
+
+/* Info for local variables. Only used during bytecode generation. */
+typedef struct VarInfo {
+  GCRef name;		/* Local variable name or goto/label name. */
+  BCPos startpc;	/* First point where the local variable is active. */
+  BCPos endpc;		/* First point where the local variable is dead. */
+  uint8_t slot;		/* Variable slot. */
+  uint8_t info;		/* Variable/goto/label info. */
+} VarInfo;
+
+/* Lua lexer state. */
+typedef struct LexState {
+  struct FuncState *fs;	/* Current FuncState. Defined in lj_parse.c. */
+  struct lua_State *L;	/* Lua state. */
+  TValue tokval;	/* Current token value. */
+  TValue lookaheadval;	/* Lookahead token value. */
+  const char *p;	/* Current position in input buffer. */
+  const char *pe;	/* End of input buffer. */
+  LexChar c;		/* Current character. */
+  LexToken tok;		/* Current token. */
+  LexToken lookahead;	/* Lookahead token. */
+  SBuf sb;		/* String buffer for tokens. */
+  lua_Reader rfunc;	/* Reader callback. */
+  void *rdata;		/* Reader callback data. */
+  BCLine linenumber;	/* Input line counter. */
+  BCLine lastline;	/* Line of last token. */
+  GCstr *chunkname;	/* Current chunk name (interned string). */
+  const char *chunkarg;	/* Chunk name argument. */
+  const char *mode;	/* Allow loading bytecode (b) and/or source text (t). */
+  VarInfo *vstack;	/* Stack for names and extents of local variables. */
+  MSize sizevstack;	/* Size of variable stack. */
+  MSize vtop;		/* Top of variable stack. */
+  BCInsLine *bcstack;	/* Stack for bytecode instructions/line numbers. */
+  MSize sizebcstack;	/* Size of bytecode stack. */
+  uint32_t level;	/* Syntactical nesting level. */
+  int endmark;		/* Trust bytecode end marker, even if not at EOF. */
+} LexState;
+
+LJ_FUNC int lj_lex_setup(lua_State *L, LexState *ls);
+LJ_FUNC void lj_lex_cleanup(lua_State *L, LexState *ls);
+LJ_FUNC void lj_lex_next(LexState *ls);
+LJ_FUNC LexToken lj_lex_lookahead(LexState *ls);
+LJ_FUNC const char *lj_lex_token2str(LexState *ls, LexToken tok);
+LJ_FUNC_NORET void lj_lex_error(LexState *ls, LexToken tok, ErrMsg em, ...);
+LJ_FUNC void lj_lex_init(lua_State *L);
+
+#ifdef LUA_USE_ASSERT
+#define lj_assertLS(c, ...)	(lj_assertG_(G(ls->L), (c), __VA_ARGS__))
+#else
+#define lj_assertLS(c, ...)	((void)ls)
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_lib.c b/libs/luajit-cmake/luajit/src/lj_lib.c
new file mode 100644
index 0000000..82a9e25
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_lib.c
@@ -0,0 +1,359 @@
+/*
+** Library function support.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_lib_c
+#define LUA_CORE
+
+#include "lauxlib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_func.h"
+#include "lj_bc.h"
+#include "lj_dispatch.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#endif
+#include "lj_vm.h"
+#include "lj_strscan.h"
+#include "lj_strfmt.h"
+#include "lj_lex.h"
+#include "lj_bcdump.h"
+#include "lj_lib.h"
+
+/* -- Library initialization ---------------------------------------------- */
+
+static GCtab *lib_create_table(lua_State *L, const char *libname, int hsize)
+{
+  if (libname) {
+    luaL_findtable(L, LUA_REGISTRYINDEX, "_LOADED", 16);
+    lua_getfield(L, -1, libname);
+    if (!tvistab(L->top-1)) {
+      L->top--;
+      if (luaL_findtable(L, LUA_GLOBALSINDEX, libname, hsize) != NULL)
+	lj_err_callerv(L, LJ_ERR_BADMODN, libname);
+      settabV(L, L->top, tabV(L->top-1));
+      L->top++;
+      lua_setfield(L, -3, libname);  /* _LOADED[libname] = new table */
+    }
+    L->top--;
+    settabV(L, L->top-1, tabV(L->top));
+  } else {
+    lua_createtable(L, 0, hsize);
+  }
+  return tabV(L->top-1);
+}
+
+static const uint8_t *lib_read_lfunc(lua_State *L, const uint8_t *p, GCtab *tab)
+{
+  int len = *p++;
+  GCstr *name = lj_str_new(L, (const char *)p, len);
+  LexState ls;
+  GCproto *pt;
+  GCfunc *fn;
+  memset(&ls, 0, sizeof(ls));
+  ls.L = L;
+  ls.p = (const char *)(p+len);
+  ls.pe = (const char *)~(uintptr_t)0;
+  ls.c = -1;
+  ls.level = (BCDUMP_F_STRIP|(LJ_BE*BCDUMP_F_BE));
+  ls.chunkname = name;
+  pt = lj_bcread_proto(&ls);
+  pt->firstline = ~(BCLine)0;
+  fn = lj_func_newL_empty(L, pt, tabref(L->env));
+  /* NOBARRIER: See below for common barrier. */
+  setfuncV(L, lj_tab_setstr(L, tab, name), fn);
+  return (const uint8_t *)ls.p;
+}
+
+void lj_lib_register(lua_State *L, const char *libname,
+		     const uint8_t *p, const lua_CFunction *cf)
+{
+  GCtab *env = tabref(L->env);
+  GCfunc *ofn = NULL;
+  int ffid = *p++;
+  BCIns *bcff = &L2GG(L)->bcff[*p++];
+  GCtab *tab = lib_create_table(L, libname, *p++);
+  ptrdiff_t tpos = L->top - L->base;
+
+  /* Avoid barriers further down. */
+  lj_gc_anybarriert(L, tab);
+  tab->nomm = 0;
+
+  for (;;) {
+    uint32_t tag = *p++;
+    MSize len = tag & LIBINIT_LENMASK;
+    tag &= LIBINIT_TAGMASK;
+    if (tag != LIBINIT_STRING) {
+      const char *name;
+      MSize nuv = (MSize)(L->top - L->base - tpos);
+      GCfunc *fn = lj_func_newC(L, nuv, env);
+      if (nuv) {
+	L->top = L->base + tpos;
+	memcpy(fn->c.upvalue, L->top, sizeof(TValue)*nuv);
+      }
+      fn->c.ffid = (uint8_t)(ffid++);
+      name = (const char *)p;
+      p += len;
+      if (tag == LIBINIT_CF)
+	setmref(fn->c.pc, &G(L)->bc_cfunc_int);
+      else
+	setmref(fn->c.pc, bcff++);
+      if (tag == LIBINIT_ASM_)
+	fn->c.f = ofn->c.f;  /* Copy handler from previous function. */
+      else
+	fn->c.f = *cf++;  /* Get cf or handler from C function table. */
+      if (len) {
+	/* NOBARRIER: See above for common barrier. */
+	setfuncV(L, lj_tab_setstr(L, tab, lj_str_new(L, name, len)), fn);
+      }
+      ofn = fn;
+    } else {
+      switch (tag | len) {
+      case LIBINIT_LUA:
+	p = lib_read_lfunc(L, p, tab);
+	break;
+      case LIBINIT_SET:
+	L->top -= 2;
+	if (tvisstr(L->top+1) && strV(L->top+1)->len == 0)
+	  env = tabV(L->top);
+	else  /* NOBARRIER: See above for common barrier. */
+	  copyTV(L, lj_tab_set(L, tab, L->top+1), L->top);
+	break;
+      case LIBINIT_NUMBER:
+	memcpy(&L->top->n, p, sizeof(double));
+	L->top++;
+	p += sizeof(double);
+	break;
+      case LIBINIT_COPY:
+	copyTV(L, L->top, L->top - *p++);
+	L->top++;
+	break;
+      case LIBINIT_LASTCL:
+	setfuncV(L, L->top++, ofn);
+	break;
+      case LIBINIT_FFID:
+	ffid++;
+	break;
+      case LIBINIT_END:
+	return;
+      default:
+	setstrV(L, L->top++, lj_str_new(L, (const char *)p, len));
+	p += len;
+	break;
+      }
+    }
+  }
+}
+
+/* Push internal function on the stack. */
+GCfunc *lj_lib_pushcc(lua_State *L, lua_CFunction f, int id, int n)
+{
+  GCfunc *fn;
+  lua_pushcclosure(L, f, n);
+  fn = funcV(L->top-1);
+  fn->c.ffid = (uint8_t)id;
+  setmref(fn->c.pc, &G(L)->bc_cfunc_int);
+  return fn;
+}
+
+void lj_lib_prereg(lua_State *L, const char *name, lua_CFunction f, GCtab *env)
+{
+  luaL_findtable(L, LUA_REGISTRYINDEX, "_PRELOAD", 4);
+  lua_pushcfunction(L, f);
+  /* NOBARRIER: The function is new (marked white). */
+  setgcref(funcV(L->top-1)->c.env, obj2gco(env));
+  lua_setfield(L, -2, name);
+  L->top--;
+}
+
+int lj_lib_postreg(lua_State *L, lua_CFunction cf, int id, const char *name)
+{
+  GCfunc *fn = lj_lib_pushcf(L, cf, id);
+  GCtab *t = tabref(curr_func(L)->c.env);  /* Reference to parent table. */
+  setfuncV(L, lj_tab_setstr(L, t, lj_str_newz(L, name)), fn);
+  lj_gc_anybarriert(L, t);
+  setfuncV(L, L->top++, fn);
+  return 1;
+}
+
+/* -- Type checks --------------------------------------------------------- */
+
+TValue *lj_lib_checkany(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (o >= L->top)
+    lj_err_arg(L, narg, LJ_ERR_NOVAL);
+  return o;
+}
+
+GCstr *lj_lib_checkstr(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (o < L->top) {
+    if (LJ_LIKELY(tvisstr(o))) {
+      return strV(o);
+    } else if (tvisnumber(o)) {
+      GCstr *s = lj_strfmt_number(L, o);
+      setstrV(L, o, s);
+      return s;
+    }
+  }
+  lj_err_argt(L, narg, LUA_TSTRING);
+  return NULL;  /* unreachable */
+}
+
+GCstr *lj_lib_optstr(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  return (o < L->top && !tvisnil(o)) ? lj_lib_checkstr(L, narg) : NULL;
+}
+
+#if LJ_DUALNUM
+void lj_lib_checknumber(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (!(o < L->top && lj_strscan_numberobj(o)))
+    lj_err_argt(L, narg, LUA_TNUMBER);
+}
+#endif
+
+lua_Number lj_lib_checknum(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (!(o < L->top &&
+	(tvisnumber(o) || (tvisstr(o) && lj_strscan_num(strV(o), o)))))
+    lj_err_argt(L, narg, LUA_TNUMBER);
+  if (LJ_UNLIKELY(tvisint(o))) {
+    lua_Number n = (lua_Number)intV(o);
+    setnumV(o, n);
+    return n;
+  } else {
+    return numV(o);
+  }
+}
+
+int32_t lj_lib_checkint(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (!(o < L->top && lj_strscan_numberobj(o)))
+    lj_err_argt(L, narg, LUA_TNUMBER);
+  if (LJ_LIKELY(tvisint(o))) {
+    return intV(o);
+  } else {
+    int32_t i = lj_num2int(numV(o));
+    if (LJ_DUALNUM) setintV(o, i);
+    return i;
+  }
+}
+
+int32_t lj_lib_optint(lua_State *L, int narg, int32_t def)
+{
+  TValue *o = L->base + narg-1;
+  return (o < L->top && !tvisnil(o)) ? lj_lib_checkint(L, narg) : def;
+}
+
+GCfunc *lj_lib_checkfunc(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (!(o < L->top && tvisfunc(o)))
+    lj_err_argt(L, narg, LUA_TFUNCTION);
+  return funcV(o);
+}
+
+GCtab *lj_lib_checktab(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (!(o < L->top && tvistab(o)))
+    lj_err_argt(L, narg, LUA_TTABLE);
+  return tabV(o);
+}
+
+GCtab *lj_lib_checktabornil(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (o < L->top) {
+    if (tvistab(o))
+      return tabV(o);
+    else if (tvisnil(o))
+      return NULL;
+  }
+  lj_err_arg(L, narg, LJ_ERR_NOTABN);
+  return NULL;  /* unreachable */
+}
+
+int lj_lib_checkopt(lua_State *L, int narg, int def, const char *lst)
+{
+  GCstr *s = def >= 0 ? lj_lib_optstr(L, narg) : lj_lib_checkstr(L, narg);
+  if (s) {
+    const char *opt = strdata(s);
+    MSize len = s->len;
+    int i;
+    for (i = 0; *(const uint8_t *)lst; i++) {
+      if (*(const uint8_t *)lst == len && memcmp(opt, lst+1, len) == 0)
+	return i;
+      lst += 1+*(const uint8_t *)lst;
+    }
+    lj_err_argv(L, narg, LJ_ERR_INVOPTM, opt);
+  }
+  return def;
+}
+
+/* -- Strict type checks -------------------------------------------------- */
+
+/* The following type checks do not coerce between strings and numbers.
+** And they handle plain int64_t/uint64_t FFI numbers, too.
+*/
+
+#if LJ_HASBUFFER
+GCstr *lj_lib_checkstrx(lua_State *L, int narg)
+{
+  TValue *o = L->base + narg-1;
+  if (!(o < L->top && tvisstr(o))) lj_err_argt(L, narg, LUA_TSTRING);
+  return strV(o);
+}
+
+int32_t lj_lib_checkintrange(lua_State *L, int narg, int32_t a, int32_t b)
+{
+  TValue *o = L->base + narg-1;
+  lj_assertL(b >= 0, "expected range must be non-negative");
+  if (o < L->top) {
+    if (LJ_LIKELY(tvisint(o))) {
+      int32_t i = intV(o);
+      if (i >= a && i <= b) return i;
+    } else if (LJ_LIKELY(tvisnum(o))) {
+      /* For performance reasons, this doesn't check for integerness or
+      ** integer overflow. Overflow detection still works, since all FPUs
+      ** return either MININT or MAXINT, which is then out of range.
+      */
+      int32_t i = (int32_t)numV(o);
+      if (i >= a && i <= b) return i;
+#if LJ_HASFFI
+    } else if (tviscdata(o)) {
+      GCcdata *cd = cdataV(o);
+      if (cd->ctypeid == CTID_INT64) {
+	int64_t i = *(int64_t *)cdataptr(cd);
+	if (i >= (int64_t)a && i <= (int64_t)b) return (int32_t)i;
+      } else if (cd->ctypeid == CTID_UINT64) {
+	uint64_t i = *(uint64_t *)cdataptr(cd);
+	if ((a < 0 || i >= (uint64_t)a) && i <= (uint64_t)b) return (int32_t)i;
+      } else {
+	goto badtype;
+      }
+#endif
+    } else {
+      goto badtype;
+    }
+    lj_err_arg(L, narg, LJ_ERR_NUMRNG);
+  }
+badtype:
+  lj_err_argt(L, narg, LUA_TNUMBER);
+  return 0;  /* unreachable */
+}
+#endif
+
diff --git a/libs/luajit-cmake/luajit/src/lj_lib.h b/libs/luajit-cmake/luajit/src/lj_lib.h
new file mode 100644
index 0000000..a18f52b
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_lib.h
@@ -0,0 +1,116 @@
+/*
+** Library function support.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_LIB_H
+#define _LJ_LIB_H
+
+#include "lj_obj.h"
+
+/*
+** A fallback handler is called by the assembler VM if the fast path fails:
+**
+** - too few arguments:   unrecoverable.
+** - wrong argument type:   recoverable, if coercion succeeds.
+** - bad argument value:  unrecoverable.
+** - stack overflow:        recoverable, if stack reallocation succeeds.
+** - extra handling:        recoverable.
+**
+** The unrecoverable cases throw an error with lj_err_arg(), lj_err_argtype(),
+** lj_err_caller() or lj_err_callermsg().
+** The recoverable cases return 0 or the number of results + 1.
+** The assembler VM retries the fast path only if 0 is returned.
+** This time the fallback must not be called again or it gets stuck in a loop.
+*/
+
+/* Return values from fallback handler. */
+#define FFH_RETRY	0
+#define FFH_UNREACHABLE	FFH_RETRY
+#define FFH_RES(n)	((n)+1)
+#define FFH_TAILCALL	(-1)
+
+LJ_FUNC TValue *lj_lib_checkany(lua_State *L, int narg);
+LJ_FUNC GCstr *lj_lib_checkstr(lua_State *L, int narg);
+LJ_FUNC GCstr *lj_lib_optstr(lua_State *L, int narg);
+#if LJ_DUALNUM
+LJ_FUNC void lj_lib_checknumber(lua_State *L, int narg);
+#else
+#define lj_lib_checknumber(L, narg)	lj_lib_checknum((L), (narg))
+#endif
+LJ_FUNC lua_Number lj_lib_checknum(lua_State *L, int narg);
+LJ_FUNC int32_t lj_lib_checkint(lua_State *L, int narg);
+LJ_FUNC int32_t lj_lib_optint(lua_State *L, int narg, int32_t def);
+LJ_FUNC GCfunc *lj_lib_checkfunc(lua_State *L, int narg);
+LJ_FUNC GCtab *lj_lib_checktab(lua_State *L, int narg);
+LJ_FUNC GCtab *lj_lib_checktabornil(lua_State *L, int narg);
+LJ_FUNC int lj_lib_checkopt(lua_State *L, int narg, int def, const char *lst);
+
+#if LJ_HASBUFFER
+LJ_FUNC GCstr *lj_lib_checkstrx(lua_State *L, int narg);
+LJ_FUNC int32_t lj_lib_checkintrange(lua_State *L, int narg,
+				     int32_t a, int32_t b);
+#endif
+
+/* Avoid including lj_frame.h. */
+#if LJ_GC64
+#define lj_lib_upvalue(L, n) \
+  (&gcval(L->base-2)->fn.c.upvalue[(n)-1])
+#elif LJ_FR2
+#define lj_lib_upvalue(L, n) \
+  (&gcref((L->base-2)->gcr)->fn.c.upvalue[(n)-1])
+#else
+#define lj_lib_upvalue(L, n) \
+  (&gcref((L->base-1)->fr.func)->fn.c.upvalue[(n)-1])
+#endif
+
+#if LJ_TARGET_WINDOWS
+#define lj_lib_checkfpu(L) \
+  do { setnumV(L->top++, (lua_Number)1437217655); \
+    if (lua_tointeger(L, -1) != 1437217655) lj_err_caller(L, LJ_ERR_BADFPU); \
+    L->top--; } while (0)
+#else
+#define lj_lib_checkfpu(L)	UNUSED(L)
+#endif
+
+LJ_FUNC GCfunc *lj_lib_pushcc(lua_State *L, lua_CFunction f, int id, int n);
+#define lj_lib_pushcf(L, fn, id)	(lj_lib_pushcc(L, (fn), (id), 0))
+
+/* Library function declarations. Scanned by buildvm. */
+#define LJLIB_CF(name)		static int lj_cf_##name(lua_State *L)
+#define LJLIB_ASM(name)		static int lj_ffh_##name(lua_State *L)
+#define LJLIB_ASM_(name)
+#define LJLIB_LUA(name)
+#define LJLIB_SET(name)
+#define LJLIB_PUSH(arg)
+#define LJLIB_REC(handler)
+#define LJLIB_NOREGUV
+#define LJLIB_NOREG
+
+#define LJ_LIB_REG(L, regname, name) \
+  lj_lib_register(L, regname, lj_lib_init_##name, lj_lib_cf_##name)
+
+LJ_FUNC void lj_lib_register(lua_State *L, const char *libname,
+			     const uint8_t *init, const lua_CFunction *cf);
+LJ_FUNC void lj_lib_prereg(lua_State *L, const char *name, lua_CFunction f,
+			   GCtab *env);
+LJ_FUNC int lj_lib_postreg(lua_State *L, lua_CFunction cf, int id,
+			   const char *name);
+
+/* Library init data tags. */
+#define LIBINIT_LENMASK	0x3f
+#define LIBINIT_TAGMASK	0xc0
+#define LIBINIT_CF	0x00
+#define LIBINIT_ASM	0x40
+#define LIBINIT_ASM_	0x80
+#define LIBINIT_STRING	0xc0
+#define LIBINIT_MAXSTR	0x38
+#define LIBINIT_LUA	0xf9
+#define LIBINIT_SET	0xfa
+#define LIBINIT_NUMBER	0xfb
+#define LIBINIT_COPY	0xfc
+#define LIBINIT_LASTCL	0xfd
+#define LIBINIT_FFID	0xfe
+#define LIBINIT_END	0xff
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_load.c b/libs/luajit-cmake/luajit/src/lj_load.c
new file mode 100644
index 0000000..0aab488
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_load.c
@@ -0,0 +1,168 @@
+/*
+** Load and dump code.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include <errno.h>
+#include <stdio.h>
+
+#define lj_load_c
+#define LUA_CORE
+
+#include "lua.h"
+#include "lauxlib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_func.h"
+#include "lj_frame.h"
+#include "lj_vm.h"
+#include "lj_lex.h"
+#include "lj_bcdump.h"
+#include "lj_parse.h"
+
+/* -- Load Lua source code and bytecode ----------------------------------- */
+
+static TValue *cpparser(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  LexState *ls = (LexState *)ud;
+  GCproto *pt;
+  GCfunc *fn;
+  int bc;
+  UNUSED(dummy);
+  cframe_errfunc(L->cframe) = -1;  /* Inherit error function. */
+  bc = lj_lex_setup(L, ls);
+  if (ls->mode && !strchr(ls->mode, bc ? 'b' : 't')) {
+    setstrV(L, L->top++, lj_err_str(L, LJ_ERR_XMODE));
+    lj_err_throw(L, LUA_ERRSYNTAX);
+  }
+  pt = bc ? lj_bcread(ls) : lj_parse(ls);
+  fn = lj_func_newL_empty(L, pt, tabref(L->env));
+  /* Don't combine above/below into one statement. */
+  setfuncV(L, L->top++, fn);
+  return NULL;
+}
+
+LUA_API int lua_loadx(lua_State *L, lua_Reader reader, void *data,
+		      const char *chunkname, const char *mode)
+{
+  LexState ls;
+  int status;
+  ls.rfunc = reader;
+  ls.rdata = data;
+  ls.chunkarg = chunkname ? chunkname : "?";
+  ls.mode = mode;
+  lj_buf_init(L, &ls.sb);
+  status = lj_vm_cpcall(L, NULL, &ls, cpparser);
+  lj_lex_cleanup(L, &ls);
+  lj_gc_check(L);
+  return status;
+}
+
+LUA_API int lua_load(lua_State *L, lua_Reader reader, void *data,
+		     const char *chunkname)
+{
+  return lua_loadx(L, reader, data, chunkname, NULL);
+}
+
+typedef struct FileReaderCtx {
+  FILE *fp;
+  char buf[LUAL_BUFFERSIZE];
+} FileReaderCtx;
+
+static const char *reader_file(lua_State *L, void *ud, size_t *size)
+{
+  FileReaderCtx *ctx = (FileReaderCtx *)ud;
+  UNUSED(L);
+  if (feof(ctx->fp)) return NULL;
+  *size = fread(ctx->buf, 1, sizeof(ctx->buf), ctx->fp);
+  return *size > 0 ? ctx->buf : NULL;
+}
+
+LUALIB_API int luaL_loadfilex(lua_State *L, const char *filename,
+			      const char *mode)
+{
+  FileReaderCtx ctx;
+  int status;
+  const char *chunkname;
+  if (filename) {
+    ctx.fp = fopen(filename, "rb");
+    if (ctx.fp == NULL) {
+      lua_pushfstring(L, "cannot open %s: %s", filename, strerror(errno));
+      return LUA_ERRFILE;
+    }
+    chunkname = lua_pushfstring(L, "@%s", filename);
+  } else {
+    ctx.fp = stdin;
+    chunkname = "=stdin";
+  }
+  status = lua_loadx(L, reader_file, &ctx, chunkname, mode);
+  if (ferror(ctx.fp)) {
+    L->top -= filename ? 2 : 1;
+    lua_pushfstring(L, "cannot read %s: %s", chunkname+1, strerror(errno));
+    if (filename)
+      fclose(ctx.fp);
+    return LUA_ERRFILE;
+  }
+  if (filename) {
+    L->top--;
+    copyTV(L, L->top-1, L->top);
+    fclose(ctx.fp);
+  }
+  return status;
+}
+
+LUALIB_API int luaL_loadfile(lua_State *L, const char *filename)
+{
+  return luaL_loadfilex(L, filename, NULL);
+}
+
+typedef struct StringReaderCtx {
+  const char *str;
+  size_t size;
+} StringReaderCtx;
+
+static const char *reader_string(lua_State *L, void *ud, size_t *size)
+{
+  StringReaderCtx *ctx = (StringReaderCtx *)ud;
+  UNUSED(L);
+  if (ctx->size == 0) return NULL;
+  *size = ctx->size;
+  ctx->size = 0;
+  return ctx->str;
+}
+
+LUALIB_API int luaL_loadbufferx(lua_State *L, const char *buf, size_t size,
+				const char *name, const char *mode)
+{
+  StringReaderCtx ctx;
+  ctx.str = buf;
+  ctx.size = size;
+  return lua_loadx(L, reader_string, &ctx, name, mode);
+}
+
+LUALIB_API int luaL_loadbuffer(lua_State *L, const char *buf, size_t size,
+			       const char *name)
+{
+  return luaL_loadbufferx(L, buf, size, name, NULL);
+}
+
+LUALIB_API int luaL_loadstring(lua_State *L, const char *s)
+{
+  return luaL_loadbuffer(L, s, strlen(s), s);
+}
+
+/* -- Dump bytecode ------------------------------------------------------- */
+
+LUA_API int lua_dump(lua_State *L, lua_Writer writer, void *data)
+{
+  cTValue *o = L->top-1;
+  lj_checkapi(L->top > L->base, "top slot empty");
+  if (tvisfunc(o) && isluafunc(funcV(o)))
+    return lj_bcwrite(L, funcproto(funcV(o)), writer, data, 0);
+  else
+    return 1;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_mcode.c b/libs/luajit-cmake/luajit/src/lj_mcode.c
new file mode 100644
index 0000000..163aada
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_mcode.c
@@ -0,0 +1,374 @@
+/*
+** Machine code management.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_mcode_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#if LJ_HASJIT
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_jit.h"
+#include "lj_mcode.h"
+#include "lj_trace.h"
+#include "lj_dispatch.h"
+#include "lj_prng.h"
+#endif
+#if LJ_HASJIT || LJ_HASFFI
+#include "lj_vm.h"
+#endif
+
+/* -- OS-specific functions ----------------------------------------------- */
+
+#if LJ_HASJIT || LJ_HASFFI
+
+/* Define this if you want to run LuaJIT with Valgrind. */
+#ifdef LUAJIT_USE_VALGRIND
+#include <valgrind/valgrind.h>
+#endif
+
+#if LJ_TARGET_IOS
+void sys_icache_invalidate(void *start, size_t len);
+#endif
+
+/* Synchronize data/instruction cache. */
+void lj_mcode_sync(void *start, void *end)
+{
+#ifdef LUAJIT_USE_VALGRIND
+  VALGRIND_DISCARD_TRANSLATIONS(start, (char *)end-(char *)start);
+#endif
+#if LJ_TARGET_X86ORX64
+  UNUSED(start); UNUSED(end);
+#elif LJ_TARGET_IOS
+  sys_icache_invalidate(start, (char *)end-(char *)start);
+#elif LJ_TARGET_PPC
+  lj_vm_cachesync(start, end);
+#elif defined(__GNUC__) || defined(__clang__)
+  __clear_cache(start, end);
+#else
+#error "Missing builtin to flush instruction cache"
+#endif
+}
+
+#endif
+
+#if LJ_HASJIT
+
+#if LJ_TARGET_WINDOWS
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#define MCPROT_RW	PAGE_READWRITE
+#define MCPROT_RX	PAGE_EXECUTE_READ
+#define MCPROT_RWX	PAGE_EXECUTE_READWRITE
+
+static void *mcode_alloc_at(jit_State *J, uintptr_t hint, size_t sz, DWORD prot)
+{
+  void *p = LJ_WIN_VALLOC((void *)hint, sz,
+			  MEM_RESERVE|MEM_COMMIT|MEM_TOP_DOWN, prot);
+  if (!p && !hint)
+    lj_trace_err(J, LJ_TRERR_MCODEAL);
+  return p;
+}
+
+static void mcode_free(jit_State *J, void *p, size_t sz)
+{
+  UNUSED(J); UNUSED(sz);
+  VirtualFree(p, 0, MEM_RELEASE);
+}
+
+static int mcode_setprot(void *p, size_t sz, DWORD prot)
+{
+  DWORD oprot;
+  return !LJ_WIN_VPROTECT(p, sz, prot, &oprot);
+}
+
+#elif LJ_TARGET_POSIX
+
+#include <sys/mman.h>
+
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS	MAP_ANON
+#endif
+
+#define MCPROT_RW	(PROT_READ|PROT_WRITE)
+#define MCPROT_RX	(PROT_READ|PROT_EXEC)
+#define MCPROT_RWX	(PROT_READ|PROT_WRITE|PROT_EXEC)
+#ifdef PROT_MPROTECT
+#define MCPROT_CREATE	(PROT_MPROTECT(MCPROT_RWX))
+#else
+#define MCPROT_CREATE	0
+#endif
+
+static void *mcode_alloc_at(jit_State *J, uintptr_t hint, size_t sz, int prot)
+{
+  void *p = mmap((void *)hint, sz, prot|MCPROT_CREATE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+  if (p == MAP_FAILED) {
+    if (!hint) lj_trace_err(J, LJ_TRERR_MCODEAL);
+    p = NULL;
+  }
+  return p;
+}
+
+static void mcode_free(jit_State *J, void *p, size_t sz)
+{
+  UNUSED(J);
+  munmap(p, sz);
+}
+
+static int mcode_setprot(void *p, size_t sz, int prot)
+{
+  return mprotect(p, sz, prot);
+}
+
+#else
+
+#error "Missing OS support for explicit placement of executable memory"
+
+#endif
+
+/* -- MCode area protection ----------------------------------------------- */
+
+#if LUAJIT_SECURITY_MCODE == 0
+
+/* Define this ONLY if page protection twiddling becomes a bottleneck.
+**
+** It's generally considered to be a potential security risk to have
+** pages with simultaneous write *and* execute access in a process.
+**
+** Do not even think about using this mode for server processes or
+** apps handling untrusted external data.
+**
+** The security risk is not in LuaJIT itself -- but if an adversary finds
+** any *other* flaw in your C application logic, then any RWX memory pages
+** simplify writing an exploit considerably.
+*/
+#define MCPROT_GEN	MCPROT_RWX
+#define MCPROT_RUN	MCPROT_RWX
+
+static void mcode_protect(jit_State *J, int prot)
+{
+  UNUSED(J); UNUSED(prot); UNUSED(mcode_setprot);
+}
+
+#else
+
+/* This is the default behaviour and much safer:
+**
+** Most of the time the memory pages holding machine code are executable,
+** but NONE of them is writable.
+**
+** The current memory area is marked read-write (but NOT executable) only
+** during the short time window while the assembler generates machine code.
+*/
+#define MCPROT_GEN	MCPROT_RW
+#define MCPROT_RUN	MCPROT_RX
+
+/* Protection twiddling failed. Probably due to kernel security. */
+static LJ_NORET LJ_NOINLINE void mcode_protfail(jit_State *J)
+{
+  lua_CFunction panic = J2G(J)->panic;
+  if (panic) {
+    lua_State *L = J->L;
+    setstrV(L, L->top++, lj_err_str(L, LJ_ERR_JITPROT));
+    panic(L);
+  }
+  exit(EXIT_FAILURE);
+}
+
+/* Change protection of MCode area. */
+static void mcode_protect(jit_State *J, int prot)
+{
+  if (J->mcprot != prot) {
+    if (LJ_UNLIKELY(mcode_setprot(J->mcarea, J->szmcarea, prot)))
+      mcode_protfail(J);
+    J->mcprot = prot;
+  }
+}
+
+#endif
+
+/* -- MCode area allocation ----------------------------------------------- */
+
+#if LJ_64
+#define mcode_validptr(p)	(p)
+#else
+#define mcode_validptr(p)	((p) && (uintptr_t)(p) < 0xffff0000)
+#endif
+
+#ifdef LJ_TARGET_JUMPRANGE
+
+/* Get memory within relative jump distance of our code in 64 bit mode. */
+static void *mcode_alloc(jit_State *J, size_t sz)
+{
+  /* Target an address in the static assembler code (64K aligned).
+  ** Try addresses within a distance of target-range/2+1MB..target+range/2-1MB.
+  ** Use half the jump range so every address in the range can reach any other.
+  */
+#if LJ_TARGET_MIPS
+  /* Use the middle of the 256MB-aligned region. */
+  uintptr_t target = ((uintptr_t)(void *)lj_vm_exit_handler &
+		      ~(uintptr_t)0x0fffffffu) + 0x08000000u;
+#else
+  uintptr_t target = (uintptr_t)(void *)lj_vm_exit_handler & ~(uintptr_t)0xffff;
+#endif
+  const uintptr_t range = (1u << (LJ_TARGET_JUMPRANGE-1)) - (1u << 21);
+  /* First try a contiguous area below the last one. */
+  uintptr_t hint = J->mcarea ? (uintptr_t)J->mcarea - sz : 0;
+  int i;
+  /* Limit probing iterations, depending on the available pool size. */
+  for (i = 0; i < LJ_TARGET_JUMPRANGE; i++) {
+    if (mcode_validptr(hint)) {
+      void *p = mcode_alloc_at(J, hint, sz, MCPROT_GEN);
+
+      if (mcode_validptr(p) &&
+	  ((uintptr_t)p + sz - target < range || target - (uintptr_t)p < range))
+	return p;
+      if (p) mcode_free(J, p, sz);  /* Free badly placed area. */
+    }
+    /* Next try probing 64K-aligned pseudo-random addresses. */
+    do {
+      hint = lj_prng_u64(&J2G(J)->prng) & ((1u<<LJ_TARGET_JUMPRANGE)-0x10000);
+    } while (!(hint + sz < range+range));
+    hint = target + hint - range;
+  }
+  lj_trace_err(J, LJ_TRERR_MCODEAL);  /* Give up. OS probably ignores hints? */
+  return NULL;
+}
+
+#else
+
+/* All memory addresses are reachable by relative jumps. */
+static void *mcode_alloc(jit_State *J, size_t sz)
+{
+#if defined(__OpenBSD__) || defined(__NetBSD__) || LJ_TARGET_UWP
+  /* Allow better executable memory allocation for OpenBSD W^X mode. */
+  void *p = mcode_alloc_at(J, 0, sz, MCPROT_RUN);
+  if (p && mcode_setprot(p, sz, MCPROT_GEN)) {
+    mcode_free(J, p, sz);
+    return NULL;
+  }
+  return p;
+#else
+  return mcode_alloc_at(J, 0, sz, MCPROT_GEN);
+#endif
+}
+
+#endif
+
+/* -- MCode area management ----------------------------------------------- */
+
+/* Allocate a new MCode area. */
+static void mcode_allocarea(jit_State *J)
+{
+  MCode *oldarea = J->mcarea;
+  size_t sz = (size_t)J->param[JIT_P_sizemcode] << 10;
+  sz = (sz + LJ_PAGESIZE-1) & ~(size_t)(LJ_PAGESIZE - 1);
+  J->mcarea = (MCode *)mcode_alloc(J, sz);
+  J->szmcarea = sz;
+  J->mcprot = MCPROT_GEN;
+  J->mctop = (MCode *)((char *)J->mcarea + J->szmcarea);
+  J->mcbot = (MCode *)((char *)J->mcarea + sizeof(MCLink));
+  ((MCLink *)J->mcarea)->next = oldarea;
+  ((MCLink *)J->mcarea)->size = sz;
+  J->szallmcarea += sz;
+  J->mcbot = (MCode *)lj_err_register_mcode(J->mcarea, sz, (uint8_t *)J->mcbot);
+}
+
+/* Free all MCode areas. */
+void lj_mcode_free(jit_State *J)
+{
+  MCode *mc = J->mcarea;
+  J->mcarea = NULL;
+  J->szallmcarea = 0;
+  while (mc) {
+    MCode *next = ((MCLink *)mc)->next;
+    size_t sz = ((MCLink *)mc)->size;
+    lj_err_deregister_mcode(mc, sz, (uint8_t *)mc + sizeof(MCLink));
+    mcode_free(J, mc, sz);
+    mc = next;
+  }
+}
+
+/* -- MCode transactions -------------------------------------------------- */
+
+/* Reserve the remainder of the current MCode area. */
+MCode *lj_mcode_reserve(jit_State *J, MCode **lim)
+{
+  if (!J->mcarea)
+    mcode_allocarea(J);
+  else
+    mcode_protect(J, MCPROT_GEN);
+  *lim = J->mcbot;
+  return J->mctop;
+}
+
+/* Commit the top part of the current MCode area. */
+void lj_mcode_commit(jit_State *J, MCode *top)
+{
+  J->mctop = top;
+  mcode_protect(J, MCPROT_RUN);
+}
+
+/* Abort the reservation. */
+void lj_mcode_abort(jit_State *J)
+{
+  if (J->mcarea)
+    mcode_protect(J, MCPROT_RUN);
+}
+
+/* Set/reset protection to allow patching of MCode areas. */
+MCode *lj_mcode_patch(jit_State *J, MCode *ptr, int finish)
+{
+  if (finish) {
+#if LUAJIT_SECURITY_MCODE
+    if (J->mcarea == ptr)
+      mcode_protect(J, MCPROT_RUN);
+    else if (LJ_UNLIKELY(mcode_setprot(ptr, ((MCLink *)ptr)->size, MCPROT_RUN)))
+      mcode_protfail(J);
+#endif
+    return NULL;
+  } else {
+    MCode *mc = J->mcarea;
+    /* Try current area first to use the protection cache. */
+    if (ptr >= mc && ptr < (MCode *)((char *)mc + J->szmcarea)) {
+#if LUAJIT_SECURITY_MCODE
+      mcode_protect(J, MCPROT_GEN);
+#endif
+      return mc;
+    }
+    /* Otherwise search through the list of MCode areas. */
+    for (;;) {
+      mc = ((MCLink *)mc)->next;
+      lj_assertJ(mc != NULL, "broken MCode area chain");
+      if (ptr >= mc && ptr < (MCode *)((char *)mc + ((MCLink *)mc)->size)) {
+#if LUAJIT_SECURITY_MCODE
+	if (LJ_UNLIKELY(mcode_setprot(mc, ((MCLink *)mc)->size, MCPROT_GEN)))
+	  mcode_protfail(J);
+#endif
+	return mc;
+      }
+    }
+  }
+}
+
+/* Limit of MCode reservation reached. */
+void lj_mcode_limiterr(jit_State *J, size_t need)
+{
+  size_t sizemcode, maxmcode;
+  lj_mcode_abort(J);
+  sizemcode = (size_t)J->param[JIT_P_sizemcode] << 10;
+  sizemcode = (sizemcode + LJ_PAGESIZE-1) & ~(size_t)(LJ_PAGESIZE - 1);
+  maxmcode = (size_t)J->param[JIT_P_maxmcode] << 10;
+  if ((size_t)need > sizemcode)
+    lj_trace_err(J, LJ_TRERR_MCODEOV);  /* Too long for any area. */
+  if (J->szallmcarea + sizemcode > maxmcode)
+    lj_trace_err(J, LJ_TRERR_MCODEAL);
+  mcode_allocarea(J);
+  lj_trace_err(J, LJ_TRERR_MCODELM);  /* Retry with new area. */
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_mcode.h b/libs/luajit-cmake/luajit/src/lj_mcode.h
new file mode 100644
index 0000000..be35925
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_mcode.h
@@ -0,0 +1,30 @@
+/*
+** Machine code management.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_MCODE_H
+#define _LJ_MCODE_H
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT || LJ_HASFFI
+LJ_FUNC void lj_mcode_sync(void *start, void *end);
+#endif
+
+#if LJ_HASJIT
+
+#include "lj_jit.h"
+
+LJ_FUNC void lj_mcode_free(jit_State *J);
+LJ_FUNC MCode *lj_mcode_reserve(jit_State *J, MCode **lim);
+LJ_FUNC void lj_mcode_commit(jit_State *J, MCode *m);
+LJ_FUNC void lj_mcode_abort(jit_State *J);
+LJ_FUNC MCode *lj_mcode_patch(jit_State *J, MCode *ptr, int finish);
+LJ_FUNC_NORET void lj_mcode_limiterr(jit_State *J, size_t need);
+
+#define lj_mcode_commitbot(J, m)	(J->mcbot = (m))
+
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_meta.c b/libs/luajit-cmake/luajit/src/lj_meta.c
new file mode 100644
index 0000000..5324c66
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_meta.c
@@ -0,0 +1,482 @@
+/*
+** Metamethod handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_meta_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_meta.h"
+#include "lj_frame.h"
+#include "lj_bc.h"
+#include "lj_vm.h"
+#include "lj_strscan.h"
+#include "lj_strfmt.h"
+#include "lj_lib.h"
+
+/* -- Metamethod handling ------------------------------------------------- */
+
+/* String interning of metamethod names for fast indexing. */
+void lj_meta_init(lua_State *L)
+{
+#define MMNAME(name)	"__" #name
+  const char *metanames = MMDEF(MMNAME);
+#undef MMNAME
+  global_State *g = G(L);
+  const char *p, *q;
+  uint32_t mm;
+  for (mm = 0, p = metanames; *p; mm++, p = q) {
+    GCstr *s;
+    for (q = p+2; *q && *q != '_'; q++) ;
+    s = lj_str_new(L, p, (size_t)(q-p));
+    /* NOBARRIER: g->gcroot[] is a GC root. */
+    setgcref(g->gcroot[GCROOT_MMNAME+mm], obj2gco(s));
+  }
+}
+
+/* Negative caching of a few fast metamethods. See the lj_meta_fast() macro. */
+cTValue *lj_meta_cache(GCtab *mt, MMS mm, GCstr *name)
+{
+  cTValue *mo = lj_tab_getstr(mt, name);
+  lj_assertX(mm <= MM_FAST, "bad metamethod %d", mm);
+  if (!mo || tvisnil(mo)) {  /* No metamethod? */
+    mt->nomm |= (uint8_t)(1u<<mm);  /* Set negative cache flag. */
+    return NULL;
+  }
+  return mo;
+}
+
+/* Lookup metamethod for object. */
+cTValue *lj_meta_lookup(lua_State *L, cTValue *o, MMS mm)
+{
+  GCtab *mt;
+  if (tvistab(o))
+    mt = tabref(tabV(o)->metatable);
+  else if (tvisudata(o))
+    mt = tabref(udataV(o)->metatable);
+  else
+    mt = tabref(basemt_obj(G(L), o));
+  if (mt) {
+    cTValue *mo = lj_tab_getstr(mt, mmname_str(G(L), mm));
+    if (mo)
+      return mo;
+  }
+  return niltv(L);
+}
+
+#if LJ_HASFFI
+/* Tailcall from C function. */
+int lj_meta_tailcall(lua_State *L, cTValue *tv)
+{
+  TValue *base = L->base;
+  TValue *top = L->top;
+  const BCIns *pc = frame_pc(base-1);  /* Preserve old PC from frame. */
+  copyTV(L, base-1-LJ_FR2, tv);  /* Replace frame with new object. */
+  if (LJ_FR2)
+    (top++)->u64 = LJ_CONT_TAILCALL;
+  else
+    top->u32.lo = LJ_CONT_TAILCALL;
+  setframe_pc(top++, pc);
+  setframe_gc(top, obj2gco(L), LJ_TTHREAD);  /* Dummy frame object. */
+  if (LJ_FR2) top++;
+  setframe_ftsz(top, ((char *)(top+1) - (char *)base) + FRAME_CONT);
+  L->base = L->top = top+1;
+  /*
+  ** before:   [old_mo|PC]    [... ...]
+  **                         ^base     ^top
+  ** after:    [new_mo|itype] [... ...] [NULL|PC] [dummy|delta]
+  **                                                           ^base/top
+  ** tailcall: [new_mo|PC]    [... ...]
+  **                         ^base     ^top
+  */
+  return 0;
+}
+#endif
+
+/* Setup call to metamethod to be run by Assembler VM. */
+static TValue *mmcall(lua_State *L, ASMFunction cont, cTValue *mo,
+		    cTValue *a, cTValue *b)
+{
+  /*
+  **           |-- framesize -> top       top+1       top+2 top+3
+  ** before:   [func slots ...]
+  ** mm setup: [func slots ...] [cont|?]  [mo|tmtype] [a]   [b]
+  ** in asm:   [func slots ...] [cont|PC] [mo|delta]  [a]   [b]
+  **           ^-- func base                          ^-- mm base
+  ** after mm: [func slots ...]           [result]
+  **                ^-- copy to base[PC_RA] --/     for lj_cont_ra
+  **                          istruecond + branch   for lj_cont_cond*
+  **                                       ignore   for lj_cont_nop
+  ** next PC:  [func slots ...]
+  */
+  TValue *top = L->top;
+  if (curr_funcisL(L)) top = curr_topL(L);
+  setcont(top++, cont);  /* Assembler VM stores PC in upper word or FR2. */
+  if (LJ_FR2) setnilV(top++);
+  copyTV(L, top++, mo);  /* Store metamethod and two arguments. */
+  if (LJ_FR2) setnilV(top++);
+  copyTV(L, top, a);
+  copyTV(L, top+1, b);
+  return top;  /* Return new base. */
+}
+
+/* -- C helpers for some instructions, called from assembler VM ----------- */
+
+/* Helper for TGET*. __index chain and metamethod. */
+cTValue *lj_meta_tget(lua_State *L, cTValue *o, cTValue *k)
+{
+  int loop;
+  for (loop = 0; loop < LJ_MAX_IDXCHAIN; loop++) {
+    cTValue *mo;
+    if (LJ_LIKELY(tvistab(o))) {
+      GCtab *t = tabV(o);
+      cTValue *tv = lj_tab_get(L, t, k);
+      if (!tvisnil(tv) ||
+	  !(mo = lj_meta_fast(L, tabref(t->metatable), MM_index)))
+	return tv;
+    } else if (tvisnil(mo = lj_meta_lookup(L, o, MM_index))) {
+      lj_err_optype(L, o, LJ_ERR_OPINDEX);
+      return NULL;  /* unreachable */
+    }
+    if (tvisfunc(mo)) {
+      L->top = mmcall(L, lj_cont_ra, mo, o, k);
+      return NULL;  /* Trigger metamethod call. */
+    }
+    o = mo;
+  }
+  lj_err_msg(L, LJ_ERR_GETLOOP);
+  return NULL;  /* unreachable */
+}
+
+/* Helper for TSET*. __newindex chain and metamethod. */
+TValue *lj_meta_tset(lua_State *L, cTValue *o, cTValue *k)
+{
+  TValue tmp;
+  int loop;
+  for (loop = 0; loop < LJ_MAX_IDXCHAIN; loop++) {
+    cTValue *mo;
+    if (LJ_LIKELY(tvistab(o))) {
+      GCtab *t = tabV(o);
+      cTValue *tv = lj_tab_get(L, t, k);
+      if (LJ_LIKELY(!tvisnil(tv))) {
+	t->nomm = 0;  /* Invalidate negative metamethod cache. */
+	lj_gc_anybarriert(L, t);
+	return (TValue *)tv;
+      } else if (!(mo = lj_meta_fast(L, tabref(t->metatable), MM_newindex))) {
+	t->nomm = 0;  /* Invalidate negative metamethod cache. */
+	lj_gc_anybarriert(L, t);
+	if (tv != niltv(L))
+	  return (TValue *)tv;
+	if (tvisnil(k)) lj_err_msg(L, LJ_ERR_NILIDX);
+	else if (tvisint(k)) { setnumV(&tmp, (lua_Number)intV(k)); k = &tmp; }
+	else if (tvisnum(k) && tvisnan(k)) lj_err_msg(L, LJ_ERR_NANIDX);
+	return lj_tab_newkey(L, t, k);
+      }
+    } else if (tvisnil(mo = lj_meta_lookup(L, o, MM_newindex))) {
+      lj_err_optype(L, o, LJ_ERR_OPINDEX);
+      return NULL;  /* unreachable */
+    }
+    if (tvisfunc(mo)) {
+      L->top = mmcall(L, lj_cont_nop, mo, o, k);
+      /* L->top+2 = v filled in by caller. */
+      return NULL;  /* Trigger metamethod call. */
+    }
+    copyTV(L, &tmp, mo);
+    o = &tmp;
+  }
+  lj_err_msg(L, LJ_ERR_SETLOOP);
+  return NULL;  /* unreachable */
+}
+
+static cTValue *str2num(cTValue *o, TValue *n)
+{
+  if (tvisnum(o))
+    return o;
+  else if (tvisint(o))
+    return (setnumV(n, (lua_Number)intV(o)), n);
+  else if (tvisstr(o) && lj_strscan_num(strV(o), n))
+    return n;
+  else
+    return NULL;
+}
+
+/* Helper for arithmetic instructions. Coercion, metamethod. */
+TValue *lj_meta_arith(lua_State *L, TValue *ra, cTValue *rb, cTValue *rc,
+		      BCReg op)
+{
+  MMS mm = bcmode_mm(op);
+  TValue tempb, tempc;
+  cTValue *b, *c;
+  if ((b = str2num(rb, &tempb)) != NULL &&
+      (c = str2num(rc, &tempc)) != NULL) {  /* Try coercion first. */
+    setnumV(ra, lj_vm_foldarith(numV(b), numV(c), (int)mm-MM_add));
+    return NULL;
+  } else {
+    cTValue *mo = lj_meta_lookup(L, rb, mm);
+    if (tvisnil(mo)) {
+      mo = lj_meta_lookup(L, rc, mm);
+      if (tvisnil(mo)) {
+	if (str2num(rb, &tempb) == NULL) rc = rb;
+	lj_err_optype(L, rc, LJ_ERR_OPARITH);
+	return NULL;  /* unreachable */
+      }
+    }
+    return mmcall(L, lj_cont_ra, mo, rb, rc);
+  }
+}
+
+/* Helper for CAT. Coercion, iterative concat, __concat metamethod. */
+TValue *lj_meta_cat(lua_State *L, TValue *top, int left)
+{
+  int fromc = 0;
+  if (left < 0) { left = -left; fromc = 1; }
+  do {
+    if (!(tvisstr(top) || tvisnumber(top) || tvisbuf(top)) ||
+	!(tvisstr(top-1) || tvisnumber(top-1) || tvisbuf(top-1))) {
+      cTValue *mo = lj_meta_lookup(L, top-1, MM_concat);
+      if (tvisnil(mo)) {
+	mo = lj_meta_lookup(L, top, MM_concat);
+	if (tvisnil(mo)) {
+	  if (tvisstr(top-1) || tvisnumber(top-1)) top++;
+	  lj_err_optype(L, top-1, LJ_ERR_OPCAT);
+	  return NULL;  /* unreachable */
+	}
+      }
+      /* One of the top two elements is not a string, call __cat metamethod:
+      **
+      ** before:    [...][CAT stack .........................]
+      **                                 top-1     top         top+1 top+2
+      ** pick two:  [...][CAT stack ...] [o1]      [o2]
+      ** setup mm:  [...][CAT stack ...] [cont|?]  [mo|tmtype] [o1]  [o2]
+      ** in asm:    [...][CAT stack ...] [cont|PC] [mo|delta]  [o1]  [o2]
+      **            ^-- func base                              ^-- mm base
+      ** after mm:  [...][CAT stack ...] <--push-- [result]
+      ** next step: [...][CAT stack .............]
+      */
+      copyTV(L, top+2*LJ_FR2+2, top);  /* Carefully ordered stack copies! */
+      copyTV(L, top+2*LJ_FR2+1, top-1);
+      copyTV(L, top+LJ_FR2, mo);
+      setcont(top-1, lj_cont_cat);
+      if (LJ_FR2) { setnilV(top); setnilV(top+2); top += 2; }
+      return top+1;  /* Trigger metamethod call. */
+    } else {
+      /* Pick as many strings as possible from the top and concatenate them:
+      **
+      ** before:    [...][CAT stack ...........................]
+      ** pick str:  [...][CAT stack ...] [...... strings ......]
+      ** concat:    [...][CAT stack ...] [result]
+      ** next step: [...][CAT stack ............]
+      */
+      TValue *e, *o = top;
+      uint64_t tlen = tvisstr(o) ? strV(o)->len :
+		      tvisbuf(o) ? sbufxlen(bufV(o)) : STRFMT_MAXBUF_NUM;
+      SBuf *sb;
+      do {
+	o--; tlen += tvisstr(o) ? strV(o)->len :
+		     tvisbuf(o) ? sbufxlen(bufV(o)) : STRFMT_MAXBUF_NUM;
+      } while (--left > 0 && (tvisstr(o-1) || tvisnumber(o-1)));
+      if (tlen >= LJ_MAX_STR) lj_err_msg(L, LJ_ERR_STROV);
+      sb = lj_buf_tmp_(L);
+      lj_buf_more(sb, (MSize)tlen);
+      for (e = top, top = o; o <= e; o++) {
+	if (tvisstr(o)) {
+	  GCstr *s = strV(o);
+	  MSize len = s->len;
+	  lj_buf_putmem(sb, strdata(s), len);
+	} else if (tvisbuf(o)) {
+	  SBufExt *sbx = bufV(o);
+	  lj_buf_putmem(sb, sbx->r, sbufxlen(sbx));
+	} else if (tvisint(o)) {
+	  lj_strfmt_putint(sb, intV(o));
+	} else {
+	  lj_strfmt_putfnum(sb, STRFMT_G14, numV(o));
+	}
+      }
+      setstrV(L, top, lj_buf_str(L, sb));
+    }
+  } while (left >= 1);
+  if (LJ_UNLIKELY(G(L)->gc.total >= G(L)->gc.threshold)) {
+    if (!fromc) L->top = curr_topL(L);
+    lj_gc_step(L);
+  }
+  return NULL;
+}
+
+/* Helper for LEN. __len metamethod. */
+TValue * LJ_FASTCALL lj_meta_len(lua_State *L, cTValue *o)
+{
+  cTValue *mo = lj_meta_lookup(L, o, MM_len);
+  if (tvisnil(mo)) {
+    if (LJ_52 && tvistab(o))
+      tabref(tabV(o)->metatable)->nomm |= (uint8_t)(1u<<MM_len);
+    else
+      lj_err_optype(L, o, LJ_ERR_OPLEN);
+    return NULL;
+  }
+  return mmcall(L, lj_cont_ra, mo, o, LJ_52 ? o : niltv(L));
+}
+
+/* Helper for equality comparisons. __eq metamethod. */
+TValue *lj_meta_equal(lua_State *L, GCobj *o1, GCobj *o2, int ne)
+{
+  /* Field metatable must be at same offset for GCtab and GCudata! */
+  cTValue *mo = lj_meta_fast(L, tabref(o1->gch.metatable), MM_eq);
+  if (mo) {
+    TValue *top;
+    uint32_t it;
+    if (tabref(o1->gch.metatable) != tabref(o2->gch.metatable)) {
+      cTValue *mo2 = lj_meta_fast(L, tabref(o2->gch.metatable), MM_eq);
+      if (mo2 == NULL || !lj_obj_equal(mo, mo2))
+	return (TValue *)(intptr_t)ne;
+    }
+    top = curr_top(L);
+    setcont(top++, ne ? lj_cont_condf : lj_cont_condt);
+    if (LJ_FR2) setnilV(top++);
+    copyTV(L, top++, mo);
+    if (LJ_FR2) setnilV(top++);
+    it = ~(uint32_t)o1->gch.gct;
+    setgcV(L, top, o1, it);
+    setgcV(L, top+1, o2, it);
+    return top;  /* Trigger metamethod call. */
+  }
+  return (TValue *)(intptr_t)ne;
+}
+
+#if LJ_HASFFI
+TValue * LJ_FASTCALL lj_meta_equal_cd(lua_State *L, BCIns ins)
+{
+  ASMFunction cont = (bc_op(ins) & 1) ? lj_cont_condf : lj_cont_condt;
+  int op = (int)bc_op(ins) & ~1;
+  TValue tv;
+  cTValue *mo, *o2, *o1 = &L->base[bc_a(ins)];
+  cTValue *o1mm = o1;
+  if (op == BC_ISEQV) {
+    o2 = &L->base[bc_d(ins)];
+    if (!tviscdata(o1mm)) o1mm = o2;
+  } else if (op == BC_ISEQS) {
+    setstrV(L, &tv, gco2str(proto_kgc(curr_proto(L), ~(ptrdiff_t)bc_d(ins))));
+    o2 = &tv;
+  } else if (op == BC_ISEQN) {
+    o2 = &mref(curr_proto(L)->k, cTValue)[bc_d(ins)];
+  } else {
+    lj_assertL(op == BC_ISEQP, "bad bytecode op %d", op);
+    setpriV(&tv, ~bc_d(ins));
+    o2 = &tv;
+  }
+  mo = lj_meta_lookup(L, o1mm, MM_eq);
+  if (LJ_LIKELY(!tvisnil(mo)))
+    return mmcall(L, cont, mo, o1, o2);
+  else
+    return (TValue *)(intptr_t)(bc_op(ins) & 1);
+}
+#endif
+
+/* Helper for ordered comparisons. String compare, __lt/__le metamethods. */
+TValue *lj_meta_comp(lua_State *L, cTValue *o1, cTValue *o2, int op)
+{
+  if (LJ_HASFFI && (tviscdata(o1) || tviscdata(o2))) {
+    ASMFunction cont = (op & 1) ? lj_cont_condf : lj_cont_condt;
+    MMS mm = (op & 2) ? MM_le : MM_lt;
+    cTValue *mo = lj_meta_lookup(L, tviscdata(o1) ? o1 : o2, mm);
+    if (LJ_UNLIKELY(tvisnil(mo))) goto err;
+    return mmcall(L, cont, mo, o1, o2);
+  } else if (LJ_52 || itype(o1) == itype(o2)) {
+    /* Never called with two numbers. */
+    if (tvisstr(o1) && tvisstr(o2)) {
+      int32_t res = lj_str_cmp(strV(o1), strV(o2));
+      return (TValue *)(intptr_t)(((op&2) ? res <= 0 : res < 0) ^ (op&1));
+    } else {
+    trymt:
+      while (1) {
+	ASMFunction cont = (op & 1) ? lj_cont_condf : lj_cont_condt;
+	MMS mm = (op & 2) ? MM_le : MM_lt;
+	cTValue *mo = lj_meta_lookup(L, o1, mm);
+#if LJ_52
+	if (tvisnil(mo) && tvisnil((mo = lj_meta_lookup(L, o2, mm))))
+#else
+	cTValue *mo2 = lj_meta_lookup(L, o2, mm);
+	if (tvisnil(mo) || !lj_obj_equal(mo, mo2))
+#endif
+	{
+	  if (op & 2) {  /* MM_le not found: retry with MM_lt. */
+	    cTValue *ot = o1; o1 = o2; o2 = ot;  /* Swap operands. */
+	    op ^= 3;  /* Use LT and flip condition. */
+	    continue;
+	  }
+	  goto err;
+	}
+	return mmcall(L, cont, mo, o1, o2);
+      }
+    }
+  } else if (tvisbool(o1) && tvisbool(o2)) {
+    goto trymt;
+  } else {
+  err:
+    lj_err_comp(L, o1, o2);
+    return NULL;
+  }
+}
+
+/* Helper for ISTYPE and ISNUM. Implicit coercion or error. */
+void lj_meta_istype(lua_State *L, BCReg ra, BCReg tp)
+{
+  L->top = curr_topL(L);
+  ra++; tp--;
+  lj_assertL(LJ_DUALNUM || tp != ~LJ_TNUMX, "bad type for ISTYPE");
+  if (LJ_DUALNUM && tp == ~LJ_TNUMX) lj_lib_checkint(L, ra);
+  else if (tp == ~LJ_TNUMX+1) lj_lib_checknum(L, ra);
+  else if (tp == ~LJ_TSTR) lj_lib_checkstr(L, ra);
+  else lj_err_argtype(L, ra, lj_obj_itypename[tp]);
+}
+
+/* Helper for calls. __call metamethod. */
+void lj_meta_call(lua_State *L, TValue *func, TValue *top)
+{
+  cTValue *mo = lj_meta_lookup(L, func, MM_call);
+  TValue *p;
+  if (!tvisfunc(mo))
+    lj_err_optype_call(L, func);
+  for (p = top; p > func+2*LJ_FR2; p--) copyTV(L, p, p-1);
+  if (LJ_FR2) copyTV(L, func+2, func);
+  copyTV(L, func, mo);
+}
+
+/* Helper for FORI. Coercion. */
+void LJ_FASTCALL lj_meta_for(lua_State *L, TValue *o)
+{
+  if (!lj_strscan_numberobj(o)) lj_err_msg(L, LJ_ERR_FORINIT);
+  if (!lj_strscan_numberobj(o+1)) lj_err_msg(L, LJ_ERR_FORLIM);
+  if (!lj_strscan_numberobj(o+2)) lj_err_msg(L, LJ_ERR_FORSTEP);
+  if (LJ_DUALNUM) {
+    /* Ensure all slots are integers or all slots are numbers. */
+    int32_t k[3];
+    int nint = 0;
+    ptrdiff_t i;
+    for (i = 0; i <= 2; i++) {
+      if (tvisint(o+i)) {
+	k[i] = intV(o+i); nint++;
+      } else {
+	k[i] = lj_num2int(numV(o+i)); nint += ((lua_Number)k[i] == numV(o+i));
+      }
+    }
+    if (nint == 3) {  /* Narrow to integers. */
+      setintV(o, k[0]);
+      setintV(o+1, k[1]);
+      setintV(o+2, k[2]);
+    } else if (nint != 0) {  /* Widen to numbers. */
+      if (tvisint(o)) setnumV(o, (lua_Number)intV(o));
+      if (tvisint(o+1)) setnumV(o+1, (lua_Number)intV(o+1));
+      if (tvisint(o+2)) setnumV(o+2, (lua_Number)intV(o+2));
+    }
+  }
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_meta.h b/libs/luajit-cmake/luajit/src/lj_meta.h
new file mode 100644
index 0000000..3a6eaac
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_meta.h
@@ -0,0 +1,38 @@
+/*
+** Metamethod handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_META_H
+#define _LJ_META_H
+
+#include "lj_obj.h"
+
+/* Metamethod handling */
+LJ_FUNC void lj_meta_init(lua_State *L);
+LJ_FUNC cTValue *lj_meta_cache(GCtab *mt, MMS mm, GCstr *name);
+LJ_FUNC cTValue *lj_meta_lookup(lua_State *L, cTValue *o, MMS mm);
+#if LJ_HASFFI
+LJ_FUNC int lj_meta_tailcall(lua_State *L, cTValue *tv);
+#endif
+
+#define lj_meta_fastg(g, mt, mm) \
+  ((mt) == NULL ? NULL : ((mt)->nomm & (1u<<(mm))) ? NULL : \
+   lj_meta_cache(mt, mm, mmname_str(g, mm)))
+#define lj_meta_fast(L, mt, mm)	lj_meta_fastg(G(L), mt, mm)
+
+/* C helpers for some instructions, called from assembler VM. */
+LJ_FUNCA cTValue *lj_meta_tget(lua_State *L, cTValue *o, cTValue *k);
+LJ_FUNCA TValue *lj_meta_tset(lua_State *L, cTValue *o, cTValue *k);
+LJ_FUNCA TValue *lj_meta_arith(lua_State *L, TValue *ra, cTValue *rb,
+			       cTValue *rc, BCReg op);
+LJ_FUNCA TValue *lj_meta_cat(lua_State *L, TValue *top, int left);
+LJ_FUNCA TValue * LJ_FASTCALL lj_meta_len(lua_State *L, cTValue *o);
+LJ_FUNCA TValue *lj_meta_equal(lua_State *L, GCobj *o1, GCobj *o2, int ne);
+LJ_FUNCA TValue * LJ_FASTCALL lj_meta_equal_cd(lua_State *L, BCIns ins);
+LJ_FUNCA TValue *lj_meta_comp(lua_State *L, cTValue *o1, cTValue *o2, int op);
+LJ_FUNCA void lj_meta_istype(lua_State *L, BCReg ra, BCReg tp);
+LJ_FUNCA void lj_meta_call(lua_State *L, TValue *func, TValue *top);
+LJ_FUNCA void LJ_FASTCALL lj_meta_for(lua_State *L, TValue *o);
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_obj.c b/libs/luajit-cmake/luajit/src/lj_obj.c
new file mode 100644
index 0000000..65cbe1a
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_obj.c
@@ -0,0 +1,51 @@
+/*
+** Miscellaneous object handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_obj_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+/* Object type names. */
+LJ_DATADEF const char *const lj_obj_typename[] = {  /* ORDER LUA_T */
+  "no value", "nil", "boolean", "userdata", "number", "string",
+  "table", "function", "userdata", "thread", "proto", "cdata"
+};
+
+LJ_DATADEF const char *const lj_obj_itypename[] = {  /* ORDER LJ_T */
+  "nil", "boolean", "boolean", "userdata", "string", "upval", "thread",
+  "proto", "function", "trace", "cdata", "table", "userdata", "number"
+};
+
+/* Compare two objects without calling metamethods. */
+int LJ_FASTCALL lj_obj_equal(cTValue *o1, cTValue *o2)
+{
+  if (itype(o1) == itype(o2)) {
+    if (tvispri(o1))
+      return 1;
+    if (!tvisnum(o1))
+      return gcrefeq(o1->gcr, o2->gcr);
+  } else if (!tvisnumber(o1) || !tvisnumber(o2)) {
+    return 0;
+  }
+  return numberVnum(o1) == numberVnum(o2);
+}
+
+/* Return pointer to object or its object data. */
+const void * LJ_FASTCALL lj_obj_ptr(global_State *g, cTValue *o)
+{
+  UNUSED(g);
+  if (tvisudata(o))
+    return uddata(udataV(o));
+  else if (tvislightud(o))
+    return lightudV(g, o);
+  else if (LJ_HASFFI && tviscdata(o))
+    return cdataptr(cdataV(o));
+  else if (tvisgcv(o))
+    return gcV(o);
+  else
+    return NULL;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_obj.h b/libs/luajit-cmake/luajit/src/lj_obj.h
new file mode 100644
index 0000000..67e4118
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_obj.h
@@ -0,0 +1,1045 @@
+/*
+** LuaJIT VM tags, values and objects.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#ifndef _LJ_OBJ_H
+#define _LJ_OBJ_H
+
+#include "lua.h"
+#include "lj_def.h"
+#include "lj_arch.h"
+
+/* -- Memory references --------------------------------------------------- */
+
+/* Memory and GC object sizes. */
+typedef uint32_t MSize;
+#if LJ_GC64
+typedef uint64_t GCSize;
+#else
+typedef uint32_t GCSize;
+#endif
+
+/* Memory reference */
+typedef struct MRef {
+#if LJ_GC64
+  uint64_t ptr64;	/* True 64 bit pointer. */
+#else
+  uint32_t ptr32;	/* Pseudo 32 bit pointer. */
+#endif
+} MRef;
+
+#if LJ_GC64
+#define mref(r, t)	((t *)(void *)(r).ptr64)
+#define mrefu(r)	((r).ptr64)
+
+#define setmref(r, p)	((r).ptr64 = (uint64_t)(void *)(p))
+#define setmrefu(r, u)	((r).ptr64 = (uint64_t)(u))
+#define setmrefr(r, v)	((r).ptr64 = (v).ptr64)
+#else
+#define mref(r, t)	((t *)(void *)(uintptr_t)(r).ptr32)
+#define mrefu(r)	((r).ptr32)
+
+#define setmref(r, p)	((r).ptr32 = (uint32_t)(uintptr_t)(void *)(p))
+#define setmrefu(r, u)	((r).ptr32 = (uint32_t)(u))
+#define setmrefr(r, v)	((r).ptr32 = (v).ptr32)
+#endif
+
+/* -- GC object references ------------------------------------------------ */
+
+/* GCobj reference */
+typedef struct GCRef {
+#if LJ_GC64
+  uint64_t gcptr64;	/* True 64 bit pointer. */
+#else
+  uint32_t gcptr32;	/* Pseudo 32 bit pointer. */
+#endif
+} GCRef;
+
+/* Common GC header for all collectable objects. */
+#define GCHeader	GCRef nextgc; uint8_t marked; uint8_t gct
+/* This occupies 6 bytes, so use the next 2 bytes for non-32 bit fields. */
+
+#if LJ_GC64
+#define gcref(r)	((GCobj *)(r).gcptr64)
+#define gcrefp(r, t)	((t *)(void *)(r).gcptr64)
+#define gcrefu(r)	((r).gcptr64)
+#define gcrefeq(r1, r2)	((r1).gcptr64 == (r2).gcptr64)
+
+#define setgcref(r, gc)	((r).gcptr64 = (uint64_t)&(gc)->gch)
+#define setgcreft(r, gc, it) \
+  (r).gcptr64 = (uint64_t)&(gc)->gch | (((uint64_t)(it)) << 47)
+#define setgcrefp(r, p)	((r).gcptr64 = (uint64_t)(p))
+#define setgcrefnull(r)	((r).gcptr64 = 0)
+#define setgcrefr(r, v)	((r).gcptr64 = (v).gcptr64)
+#else
+#define gcref(r)	((GCobj *)(uintptr_t)(r).gcptr32)
+#define gcrefp(r, t)	((t *)(void *)(uintptr_t)(r).gcptr32)
+#define gcrefu(r)	((r).gcptr32)
+#define gcrefeq(r1, r2)	((r1).gcptr32 == (r2).gcptr32)
+
+#define setgcref(r, gc)	((r).gcptr32 = (uint32_t)(uintptr_t)&(gc)->gch)
+#define setgcrefp(r, p)	((r).gcptr32 = (uint32_t)(uintptr_t)(p))
+#define setgcrefnull(r)	((r).gcptr32 = 0)
+#define setgcrefr(r, v)	((r).gcptr32 = (v).gcptr32)
+#endif
+
+#define gcnext(gc)	(gcref((gc)->gch.nextgc))
+
+/* IMPORTANT NOTE:
+**
+** All uses of the setgcref* macros MUST be accompanied with a write barrier.
+**
+** This is to ensure the integrity of the incremental GC. The invariant
+** to preserve is that a black object never points to a white object.
+** I.e. never store a white object into a field of a black object.
+**
+** It's ok to LEAVE OUT the write barrier ONLY in the following cases:
+** - The source is not a GC object (NULL).
+** - The target is a GC root. I.e. everything in global_State.
+** - The target is a lua_State field (threads are never black).
+** - The target is a stack slot, see setgcV et al.
+** - The target is an open upvalue, i.e. pointing to a stack slot.
+** - The target is a newly created object (i.e. marked white). But make
+**   sure nothing invokes the GC inbetween.
+** - The target and the source are the same object (self-reference).
+** - The target already contains the object (e.g. moving elements around).
+**
+** The most common case is a store to a stack slot. All other cases where
+** a barrier has been omitted are annotated with a NOBARRIER comment.
+**
+** The same logic applies for stores to table slots (array part or hash
+** part). ALL uses of lj_tab_set* require a barrier for the stored value
+** *and* the stored key, based on the above rules. In practice this means
+** a barrier is needed if *either* of the key or value are a GC object.
+**
+** It's ok to LEAVE OUT the write barrier in the following special cases:
+** - The stored value is nil. The key doesn't matter because it's either
+**   not resurrected or lj_tab_newkey() will take care of the key barrier.
+** - The key doesn't matter if the *previously* stored value is guaranteed
+**   to be non-nil (because the key is kept alive in the table).
+** - The key doesn't matter if it's guaranteed not to be part of the table,
+**   since lj_tab_newkey() takes care of the key barrier. This applies
+**   trivially to new tables, but watch out for resurrected keys. Storing
+**   a nil value leaves the key in the table!
+**
+** In case of doubt use lj_gc_anybarriert() as it's rather cheap. It's used
+** by the interpreter for all table stores.
+**
+** Note: In contrast to Lua's GC, LuaJIT's GC does *not* specially mark
+** dead keys in tables. The reference is left in, but it's guaranteed to
+** be never dereferenced as long as the value is nil. It's ok if the key is
+** freed or if any object subsequently gets the same address.
+**
+** Not destroying dead keys helps to keep key hash slots stable. This avoids
+** specialization back-off for HREFK when a value flips between nil and
+** non-nil and the GC gets in the way. It also allows safely hoisting
+** HREF/HREFK across GC steps. Dead keys are only removed if a table is
+** resized (i.e. by NEWREF) and xREF must not be CSEd across a resize.
+**
+** The trade-off is that a write barrier for tables must take the key into
+** account, too. Implicitly resurrecting the key by storing a non-nil value
+** may invalidate the incremental GC invariant.
+*/
+
+/* -- Common type definitions --------------------------------------------- */
+
+/* Types for handling bytecodes. Need this here, details in lj_bc.h. */
+typedef uint32_t BCIns;  /* Bytecode instruction. */
+typedef uint32_t BCPos;  /* Bytecode position. */
+typedef uint32_t BCReg;  /* Bytecode register. */
+typedef int32_t BCLine;  /* Bytecode line number. */
+
+/* Internal assembler functions. Never call these directly from C. */
+typedef void (*ASMFunction)(void);
+
+/* Resizable string buffer. Need this here, details in lj_buf.h. */
+#define SBufHeader	char *w, *e, *b; MRef L
+typedef struct SBuf {
+  SBufHeader;
+} SBuf;
+
+/* -- Tags and values ----------------------------------------------------- */
+
+/* Frame link. */
+typedef union {
+  int32_t ftsz;		/* Frame type and size of previous frame. */
+  MRef pcr;		/* Or PC for Lua frames. */
+} FrameLink;
+
+/* Tagged value. */
+typedef LJ_ALIGN(8) union TValue {
+  uint64_t u64;		/* 64 bit pattern overlaps number. */
+  lua_Number n;		/* Number object overlaps split tag/value object. */
+#if LJ_GC64
+  GCRef gcr;		/* GCobj reference with tag. */
+  int64_t it64;
+  struct {
+    LJ_ENDIAN_LOHI(
+      int32_t i;	/* Integer value. */
+    , uint32_t it;	/* Internal object tag. Must overlap MSW of number. */
+    )
+  };
+#else
+  struct {
+    LJ_ENDIAN_LOHI(
+      union {
+	GCRef gcr;	/* GCobj reference (if any). */
+	int32_t i;	/* Integer value. */
+      };
+    , uint32_t it;	/* Internal object tag. Must overlap MSW of number. */
+    )
+  };
+#endif
+#if LJ_FR2
+  int64_t ftsz;		/* Frame type and size of previous frame, or PC. */
+#else
+  struct {
+    LJ_ENDIAN_LOHI(
+      GCRef func;	/* Function for next frame (or dummy L). */
+    , FrameLink tp;	/* Link to previous frame. */
+    )
+  } fr;
+#endif
+  struct {
+    LJ_ENDIAN_LOHI(
+      uint32_t lo;	/* Lower 32 bits of number. */
+    , uint32_t hi;	/* Upper 32 bits of number. */
+    )
+  } u32;
+} TValue;
+
+typedef const TValue cTValue;
+
+#define tvref(r)	(mref(r, TValue))
+
+/* More external and GCobj tags for internal objects. */
+#define LAST_TT		LUA_TTHREAD
+#define LUA_TPROTO	(LAST_TT+1)
+#define LUA_TCDATA	(LAST_TT+2)
+
+/* Internal object tags.
+**
+** Format for 32 bit GC references (!LJ_GC64):
+**
+** Internal tags overlap the MSW of a number object (must be a double).
+** Interpreted as a double these are special NaNs. The FPU only generates
+** one type of NaN (0xfff8_0000_0000_0000). So MSWs > 0xfff80000 are available
+** for use as internal tags. Small negative numbers are used to shorten the
+** encoding of type comparisons (reg/mem against sign-ext. 8 bit immediate).
+**
+**                  ---MSW---.---LSW---
+** primitive types |  itype  |         |
+** lightuserdata   |  itype  |  void * |  (32 bit platforms)
+** lightuserdata   |ffff|seg|    ofs   |  (64 bit platforms)
+** GC objects      |  itype  |  GCRef  |
+** int (LJ_DUALNUM)|  itype  |   int   |
+** number           -------double------
+**
+** Format for 64 bit GC references (LJ_GC64):
+**
+** The upper 13 bits must be 1 (0xfff8...) for a special NaN. The next
+** 4 bits hold the internal tag. The lowest 47 bits either hold a pointer,
+** a zero-extended 32 bit integer or all bits set to 1 for primitive types.
+**
+**                     ------MSW------.------LSW------
+** primitive types    |1..1|itype|1..................1|
+** GC objects         |1..1|itype|-------GCRef--------|
+** lightuserdata      |1..1|itype|seg|------ofs-------|
+** int (LJ_DUALNUM)   |1..1|itype|0..0|-----int-------|
+** number              ------------double-------------
+**
+** ORDER LJ_T
+** Primitive types nil/false/true must be first, lightuserdata next.
+** GC objects are at the end, table/userdata must be lowest.
+** Also check lj_ir.h for similar ordering constraints.
+*/
+#define LJ_TNIL			(~0u)
+#define LJ_TFALSE		(~1u)
+#define LJ_TTRUE		(~2u)
+#define LJ_TLIGHTUD		(~3u)
+#define LJ_TSTR			(~4u)
+#define LJ_TUPVAL		(~5u)
+#define LJ_TTHREAD		(~6u)
+#define LJ_TPROTO		(~7u)
+#define LJ_TFUNC		(~8u)
+#define LJ_TTRACE		(~9u)
+#define LJ_TCDATA		(~10u)
+#define LJ_TTAB			(~11u)
+#define LJ_TUDATA		(~12u)
+/* This is just the canonical number type used in some places. */
+#define LJ_TNUMX		(~13u)
+
+/* Integers have itype == LJ_TISNUM doubles have itype < LJ_TISNUM */
+#if LJ_64 && !LJ_GC64
+#define LJ_TISNUM		0xfffeffffu
+#else
+#define LJ_TISNUM		LJ_TNUMX
+#endif
+#define LJ_TISTRUECOND		LJ_TFALSE
+#define LJ_TISPRI		LJ_TTRUE
+#define LJ_TISGCV		(LJ_TSTR+1)
+#define LJ_TISTABUD		LJ_TTAB
+
+/* Type marker for slot holding a traversal index. Must be lightuserdata. */
+#define LJ_KEYINDEX		0xfffe7fffu
+
+#if LJ_GC64
+#define LJ_GCVMASK		(((uint64_t)1 << 47) - 1)
+#endif
+
+#if LJ_64
+/* To stay within 47 bits, lightuserdata is segmented. */
+#define LJ_LIGHTUD_BITS_SEG	8
+#define LJ_LIGHTUD_BITS_LO	(47 - LJ_LIGHTUD_BITS_SEG)
+#endif
+
+/* -- String object ------------------------------------------------------- */
+
+typedef uint32_t StrHash;	/* String hash value. */
+typedef uint32_t StrID;		/* String ID. */
+
+/* String object header. String payload follows. */
+typedef struct GCstr {
+  GCHeader;
+  uint8_t reserved;	/* Used by lexer for fast lookup of reserved words. */
+  uint8_t hashalg;	/* Hash algorithm. */
+  StrID sid;		/* Interned string ID. */
+  StrHash hash;		/* Hash of string. */
+  MSize len;		/* Size of string. */
+} GCstr;
+
+#define strref(r)	(&gcref((r))->str)
+#define strdata(s)	((const char *)((s)+1))
+#define strdatawr(s)	((char *)((s)+1))
+#define strVdata(o)	strdata(strV(o))
+
+/* -- Userdata object ----------------------------------------------------- */
+
+/* Userdata object. Payload follows. */
+typedef struct GCudata {
+  GCHeader;
+  uint8_t udtype;	/* Userdata type. */
+  uint8_t unused2;
+  GCRef env;		/* Should be at same offset in GCfunc. */
+  MSize len;		/* Size of payload. */
+  GCRef metatable;	/* Must be at same offset in GCtab. */
+  uint32_t align1;	/* To force 8 byte alignment of the payload. */
+} GCudata;
+
+/* Userdata types. */
+enum {
+  UDTYPE_USERDATA,	/* Regular userdata. */
+  UDTYPE_IO_FILE,	/* I/O library FILE. */
+  UDTYPE_FFI_CLIB,	/* FFI C library namespace. */
+  UDTYPE_BUFFER,	/* String buffer. */
+  UDTYPE__MAX
+};
+
+#define uddata(u)	((void *)((u)+1))
+#define sizeudata(u)	(sizeof(struct GCudata)+(u)->len)
+
+/* -- C data object ------------------------------------------------------- */
+
+/* C data object. Payload follows. */
+typedef struct GCcdata {
+  GCHeader;
+  uint16_t ctypeid;	/* C type ID. */
+} GCcdata;
+
+/* Prepended to variable-sized or realigned C data objects. */
+typedef struct GCcdataVar {
+  uint16_t offset;	/* Offset to allocated memory (relative to GCcdata). */
+  uint16_t extra;	/* Extra space allocated (incl. GCcdata + GCcdatav). */
+  MSize len;		/* Size of payload. */
+} GCcdataVar;
+
+#define cdataptr(cd)	((void *)((cd)+1))
+#define cdataisv(cd)	((cd)->marked & 0x80)
+#define cdatav(cd)	((GCcdataVar *)((char *)(cd) - sizeof(GCcdataVar)))
+#define cdatavlen(cd)	check_exp(cdataisv(cd), cdatav(cd)->len)
+#define sizecdatav(cd)	(cdatavlen(cd) + cdatav(cd)->extra)
+#define memcdatav(cd)	((void *)((char *)(cd) - cdatav(cd)->offset))
+
+/* -- Prototype object ---------------------------------------------------- */
+
+#define SCALE_NUM_GCO	((int32_t)sizeof(lua_Number)/sizeof(GCRef))
+#define round_nkgc(n)	(((n) + SCALE_NUM_GCO-1) & ~(SCALE_NUM_GCO-1))
+
+typedef struct GCproto {
+  GCHeader;
+  uint8_t numparams;	/* Number of parameters. */
+  uint8_t framesize;	/* Fixed frame size. */
+  MSize sizebc;		/* Number of bytecode instructions. */
+#if LJ_GC64
+  uint32_t unused_gc64;
+#endif
+  GCRef gclist;
+  MRef k;		/* Split constant array (points to the middle). */
+  MRef uv;		/* Upvalue list. local slot|0x8000 or parent uv idx. */
+  MSize sizekgc;	/* Number of collectable constants. */
+  MSize sizekn;		/* Number of lua_Number constants. */
+  MSize sizept;		/* Total size including colocated arrays. */
+  uint8_t sizeuv;	/* Number of upvalues. */
+  uint8_t flags;	/* Miscellaneous flags (see below). */
+  uint16_t trace;	/* Anchor for chain of root traces. */
+  /* ------ The following fields are for debugging/tracebacks only ------ */
+  GCRef chunkname;	/* Name of the chunk this function was defined in. */
+  BCLine firstline;	/* First line of the function definition. */
+  BCLine numline;	/* Number of lines for the function definition. */
+  MRef lineinfo;	/* Compressed map from bytecode ins. to source line. */
+  MRef uvinfo;		/* Upvalue names. */
+  MRef varinfo;		/* Names and compressed extents of local variables. */
+} GCproto;
+
+/* Flags for prototype. */
+#define PROTO_CHILD		0x01	/* Has child prototypes. */
+#define PROTO_VARARG		0x02	/* Vararg function. */
+#define PROTO_FFI		0x04	/* Uses BC_KCDATA for FFI datatypes. */
+#define PROTO_NOJIT		0x08	/* JIT disabled for this function. */
+#define PROTO_ILOOP		0x10	/* Patched bytecode with ILOOP etc. */
+/* Only used during parsing. */
+#define PROTO_HAS_RETURN	0x20	/* Already emitted a return. */
+#define PROTO_FIXUP_RETURN	0x40	/* Need to fixup emitted returns. */
+/* Top bits used for counting created closures. */
+#define PROTO_CLCOUNT		0x20	/* Base of saturating 3 bit counter. */
+#define PROTO_CLC_BITS		3
+#define PROTO_CLC_POLY		(3*PROTO_CLCOUNT)  /* Polymorphic threshold. */
+
+#define PROTO_UV_LOCAL		0x8000	/* Upvalue for local slot. */
+#define PROTO_UV_IMMUTABLE	0x4000	/* Immutable upvalue. */
+
+#define proto_kgc(pt, idx) \
+  check_exp((uintptr_t)(intptr_t)(idx) >= (uintptr_t)-(intptr_t)(pt)->sizekgc, \
+	    gcref(mref((pt)->k, GCRef)[(idx)]))
+#define proto_knumtv(pt, idx) \
+  check_exp((uintptr_t)(idx) < (pt)->sizekn, &mref((pt)->k, TValue)[(idx)])
+#define proto_bc(pt)		((BCIns *)((char *)(pt) + sizeof(GCproto)))
+#define proto_bcpos(pt, pc)	((BCPos)((pc) - proto_bc(pt)))
+#define proto_uv(pt)		(mref((pt)->uv, uint16_t))
+
+#define proto_chunkname(pt)	(strref((pt)->chunkname))
+#define proto_chunknamestr(pt)	(strdata(proto_chunkname((pt))))
+#define proto_lineinfo(pt)	(mref((pt)->lineinfo, const void))
+#define proto_uvinfo(pt)	(mref((pt)->uvinfo, const uint8_t))
+#define proto_varinfo(pt)	(mref((pt)->varinfo, const uint8_t))
+
+/* -- Upvalue object ------------------------------------------------------ */
+
+typedef struct GCupval {
+  GCHeader;
+  uint8_t closed;	/* Set if closed (i.e. uv->v == &uv->u.value). */
+  uint8_t immutable;	/* Immutable value. */
+  union {
+    TValue tv;		/* If closed: the value itself. */
+    struct {		/* If open: double linked list, anchored at thread. */
+      GCRef prev;
+      GCRef next;
+    };
+  };
+  MRef v;		/* Points to stack slot (open) or above (closed). */
+  uint32_t dhash;	/* Disambiguation hash: dh1 != dh2 => cannot alias. */
+} GCupval;
+
+#define uvprev(uv_)	(&gcref((uv_)->prev)->uv)
+#define uvnext(uv_)	(&gcref((uv_)->next)->uv)
+#define uvval(uv_)	(mref((uv_)->v, TValue))
+
+/* -- Function object (closures) ------------------------------------------ */
+
+/* Common header for functions. env should be at same offset in GCudata. */
+#define GCfuncHeader \
+  GCHeader; uint8_t ffid; uint8_t nupvalues; \
+  GCRef env; GCRef gclist; MRef pc
+
+typedef struct GCfuncC {
+  GCfuncHeader;
+  lua_CFunction f;	/* C function to be called. */
+  TValue upvalue[1];	/* Array of upvalues (TValue). */
+} GCfuncC;
+
+typedef struct GCfuncL {
+  GCfuncHeader;
+  GCRef uvptr[1];	/* Array of _pointers_ to upvalue objects (GCupval). */
+} GCfuncL;
+
+typedef union GCfunc {
+  GCfuncC c;
+  GCfuncL l;
+} GCfunc;
+
+#define FF_LUA		0
+#define FF_C		1
+#define isluafunc(fn)	((fn)->c.ffid == FF_LUA)
+#define iscfunc(fn)	((fn)->c.ffid == FF_C)
+#define isffunc(fn)	((fn)->c.ffid > FF_C)
+#define funcproto(fn) \
+  check_exp(isluafunc(fn), (GCproto *)(mref((fn)->l.pc, char)-sizeof(GCproto)))
+#define sizeCfunc(n)	(sizeof(GCfuncC)-sizeof(TValue)+sizeof(TValue)*(n))
+#define sizeLfunc(n)	(sizeof(GCfuncL)-sizeof(GCRef)+sizeof(GCRef)*(n))
+
+/* -- Table object -------------------------------------------------------- */
+
+/* Hash node. */
+typedef struct Node {
+  TValue val;		/* Value object. Must be first field. */
+  TValue key;		/* Key object. */
+  MRef next;		/* Hash chain. */
+#if !LJ_GC64
+  MRef freetop;		/* Top of free elements (stored in t->node[0]). */
+#endif
+} Node;
+
+LJ_STATIC_ASSERT(offsetof(Node, val) == 0);
+
+typedef struct GCtab {
+  GCHeader;
+  uint8_t nomm;		/* Negative cache for fast metamethods. */
+  int8_t colo;		/* Array colocation. */
+  MRef array;		/* Array part. */
+  GCRef gclist;
+  GCRef metatable;	/* Must be at same offset in GCudata. */
+  MRef node;		/* Hash part. */
+  uint32_t asize;	/* Size of array part (keys [0, asize-1]). */
+  uint32_t hmask;	/* Hash part mask (size of hash part - 1). */
+#if LJ_GC64
+  MRef freetop;		/* Top of free elements. */
+#endif
+} GCtab;
+
+#define sizetabcolo(n)	((n)*sizeof(TValue) + sizeof(GCtab))
+#define tabref(r)	((GCtab *)gcref((r)))
+#define noderef(r)	(mref((r), Node))
+#define nextnode(n)	(mref((n)->next, Node))
+#if LJ_GC64
+#define getfreetop(t, n)	(noderef((t)->freetop))
+#define setfreetop(t, n, v)	(setmref((t)->freetop, (v)))
+#else
+#define getfreetop(t, n)	(noderef((n)->freetop))
+#define setfreetop(t, n, v)	(setmref((n)->freetop, (v)))
+#endif
+
+/* -- State objects ------------------------------------------------------- */
+
+/* VM states. */
+enum {
+  LJ_VMST_INTERP,	/* Interpreter. */
+  LJ_VMST_C,		/* C function. */
+  LJ_VMST_GC,		/* Garbage collector. */
+  LJ_VMST_EXIT,		/* Trace exit handler. */
+  LJ_VMST_RECORD,	/* Trace recorder. */
+  LJ_VMST_OPT,		/* Optimizer. */
+  LJ_VMST_ASM,		/* Assembler. */
+  LJ_VMST__MAX
+};
+
+#define setvmstate(g, st)	((g)->vmstate = ~LJ_VMST_##st)
+
+/* Metamethods. ORDER MM */
+#ifdef LJ_HASFFI
+#define MMDEF_FFI(_) _(new)
+#else
+#define MMDEF_FFI(_)
+#endif
+
+#if LJ_52 || LJ_HASFFI
+#define MMDEF_PAIRS(_) _(pairs) _(ipairs)
+#else
+#define MMDEF_PAIRS(_)
+#define MM_pairs	255
+#define MM_ipairs	255
+#endif
+
+#define MMDEF(_) \
+  _(index) _(newindex) _(gc) _(mode) _(eq) _(len) \
+  /* Only the above (fast) metamethods are negative cached (max. 8). */ \
+  _(lt) _(le) _(concat) _(call) \
+  /* The following must be in ORDER ARITH. */ \
+  _(add) _(sub) _(mul) _(div) _(mod) _(pow) _(unm) \
+  /* The following are used in the standard libraries. */ \
+  _(metatable) _(tostring) MMDEF_FFI(_) MMDEF_PAIRS(_)
+
+typedef enum {
+#define MMENUM(name)	MM_##name,
+MMDEF(MMENUM)
+#undef MMENUM
+  MM__MAX,
+  MM____ = MM__MAX,
+  MM_FAST = MM_len
+} MMS;
+
+/* GC root IDs. */
+typedef enum {
+  GCROOT_MMNAME,	/* Metamethod names. */
+  GCROOT_MMNAME_LAST = GCROOT_MMNAME + MM__MAX-1,
+  GCROOT_BASEMT,	/* Metatables for base types. */
+  GCROOT_BASEMT_NUM = GCROOT_BASEMT + ~LJ_TNUMX,
+  GCROOT_IO_INPUT,	/* Userdata for default I/O input file. */
+  GCROOT_IO_OUTPUT,	/* Userdata for default I/O output file. */
+  GCROOT_MAX
+} GCRootID;
+
+#define basemt_it(g, it)	((g)->gcroot[GCROOT_BASEMT+~(it)])
+#define basemt_obj(g, o)	((g)->gcroot[GCROOT_BASEMT+itypemap(o)])
+#define mmname_str(g, mm)	(strref((g)->gcroot[GCROOT_MMNAME+(mm)]))
+
+/* Garbage collector state. */
+typedef struct GCState {
+  GCSize total;		/* Memory currently allocated. */
+  GCSize threshold;	/* Memory threshold. */
+  uint8_t currentwhite;	/* Current white color. */
+  uint8_t state;	/* GC state. */
+  uint8_t nocdatafin;	/* No cdata finalizer called. */
+#if LJ_64
+  uint8_t lightudnum;	/* Number of lightuserdata segments - 1. */
+#else
+  uint8_t unused1;
+#endif
+  MSize sweepstr;	/* Sweep position in string table. */
+  GCRef root;		/* List of all collectable objects. */
+  MRef sweep;		/* Sweep position in root list. */
+  GCRef gray;		/* List of gray objects. */
+  GCRef grayagain;	/* List of objects for atomic traversal. */
+  GCRef weak;		/* List of weak tables (to be cleared). */
+  GCRef mmudata;	/* List of userdata (to be finalized). */
+  GCSize debt;		/* Debt (how much GC is behind schedule). */
+  GCSize estimate;	/* Estimate of memory actually in use. */
+  MSize stepmul;	/* Incremental GC step granularity. */
+  MSize pause;		/* Pause between successive GC cycles. */
+#if LJ_64
+  MRef lightudseg;	/* Upper bits of lightuserdata segments. */
+#endif
+} GCState;
+
+/* String interning state. */
+typedef struct StrInternState {
+  GCRef *tab;		/* String hash table anchors. */
+  MSize mask;		/* String hash mask (size of hash table - 1). */
+  MSize num;		/* Number of strings in hash table. */
+  StrID id;		/* Next string ID. */
+  uint8_t idreseed;	/* String ID reseed counter. */
+  uint8_t second;	/* String interning table uses secondary hashing. */
+  uint8_t unused1;
+  uint8_t unused2;
+  LJ_ALIGN(8) uint64_t seed;	/* Random string seed. */
+} StrInternState;
+
+/* Global state, shared by all threads of a Lua universe. */
+typedef struct global_State {
+  lua_Alloc allocf;	/* Memory allocator. */
+  void *allocd;		/* Memory allocator data. */
+  GCState gc;		/* Garbage collector. */
+  GCstr strempty;	/* Empty string. */
+  uint8_t stremptyz;	/* Zero terminator of empty string. */
+  uint8_t hookmask;	/* Hook mask. */
+  uint8_t dispatchmode;	/* Dispatch mode. */
+  uint8_t vmevmask;	/* VM event mask. */
+  StrInternState str;	/* String interning. */
+  volatile int32_t vmstate;  /* VM state or current JIT code trace number. */
+  GCRef mainthref;	/* Link to main thread. */
+  SBuf tmpbuf;		/* Temporary string buffer. */
+  TValue tmptv, tmptv2;	/* Temporary TValues. */
+  Node nilnode;		/* Fallback 1-element hash part (nil key and value). */
+  TValue registrytv;	/* Anchor for registry. */
+  GCupval uvhead;	/* Head of double-linked list of all open upvalues. */
+  int32_t hookcount;	/* Instruction hook countdown. */
+  int32_t hookcstart;	/* Start count for instruction hook counter. */
+  lua_Hook hookf;	/* Hook function. */
+  lua_CFunction wrapf;	/* Wrapper for C function calls. */
+  lua_CFunction panic;	/* Called as a last resort for errors. */
+  BCIns bc_cfunc_int;	/* Bytecode for internal C function calls. */
+  BCIns bc_cfunc_ext;	/* Bytecode for external C function calls. */
+  GCRef cur_L;		/* Currently executing lua_State. */
+  MRef jit_base;	/* Current JIT code L->base or NULL. */
+  MRef ctype_state;	/* Pointer to C type state. */
+  PRNGState prng;	/* Global PRNG state. */
+  GCRef gcroot[GCROOT_MAX];  /* GC roots. */
+} global_State;
+
+#define mainthread(g)	(&gcref(g->mainthref)->th)
+#define niltv(L) \
+  check_exp(tvisnil(&G(L)->nilnode.val), &G(L)->nilnode.val)
+#define niltvg(g) \
+  check_exp(tvisnil(&(g)->nilnode.val), &(g)->nilnode.val)
+
+/* Hook management. Hook event masks are defined in lua.h. */
+#define HOOK_EVENTMASK		0x0f
+#define HOOK_ACTIVE		0x10
+#define HOOK_ACTIVE_SHIFT	4
+#define HOOK_VMEVENT		0x20
+#define HOOK_GC			0x40
+#define HOOK_PROFILE		0x80
+#define hook_active(g)		((g)->hookmask & HOOK_ACTIVE)
+#define hook_enter(g)		((g)->hookmask |= HOOK_ACTIVE)
+#define hook_entergc(g) \
+  ((g)->hookmask = ((g)->hookmask | (HOOK_ACTIVE|HOOK_GC)) & ~HOOK_PROFILE)
+#define hook_vmevent(g)		((g)->hookmask |= (HOOK_ACTIVE|HOOK_VMEVENT))
+#define hook_leave(g)		((g)->hookmask &= ~HOOK_ACTIVE)
+#define hook_save(g)		((g)->hookmask & ~HOOK_EVENTMASK)
+#define hook_restore(g, h) \
+  ((g)->hookmask = ((g)->hookmask & HOOK_EVENTMASK) | (h))
+
+/* Per-thread state object. */
+struct lua_State {
+  GCHeader;
+  uint8_t dummy_ffid;	/* Fake FF_C for curr_funcisL() on dummy frames. */
+  uint8_t status;	/* Thread status. */
+  MRef glref;		/* Link to global state. */
+  GCRef gclist;		/* GC chain. */
+  TValue *base;		/* Base of currently executing function. */
+  TValue *top;		/* First free slot in the stack. */
+  MRef maxstack;	/* Last free slot in the stack. */
+  MRef stack;		/* Stack base. */
+  GCRef openupval;	/* List of open upvalues in the stack. */
+  GCRef env;		/* Thread environment (table of globals). */
+  void *cframe;		/* End of C stack frame chain. */
+  MSize stacksize;	/* True stack size (incl. LJ_STACK_EXTRA). */
+};
+
+#define G(L)			(mref(L->glref, global_State))
+#define registry(L)		(&G(L)->registrytv)
+
+/* Macros to access the currently executing (Lua) function. */
+#if LJ_GC64
+#define curr_func(L)		(&gcval(L->base-2)->fn)
+#elif LJ_FR2
+#define curr_func(L)		(&gcref((L->base-2)->gcr)->fn)
+#else
+#define curr_func(L)		(&gcref((L->base-1)->fr.func)->fn)
+#endif
+#define curr_funcisL(L)		(isluafunc(curr_func(L)))
+#define curr_proto(L)		(funcproto(curr_func(L)))
+#define curr_topL(L)		(L->base + curr_proto(L)->framesize)
+#define curr_top(L)		(curr_funcisL(L) ? curr_topL(L) : L->top)
+
+#if defined(LUA_USE_ASSERT) || defined(LUA_USE_APICHECK)
+LJ_FUNC_NORET void lj_assert_fail(global_State *g, const char *file, int line,
+				  const char *func, const char *fmt, ...);
+#endif
+
+/* -- GC object definition and conversions -------------------------------- */
+
+/* GC header for generic access to common fields of GC objects. */
+typedef struct GChead {
+  GCHeader;
+  uint8_t unused1;
+  uint8_t unused2;
+  GCRef env;
+  GCRef gclist;
+  GCRef metatable;
+} GChead;
+
+/* The env field SHOULD be at the same offset for all GC objects. */
+LJ_STATIC_ASSERT(offsetof(GChead, env) == offsetof(GCfuncL, env));
+LJ_STATIC_ASSERT(offsetof(GChead, env) == offsetof(GCudata, env));
+
+/* The metatable field MUST be at the same offset for all GC objects. */
+LJ_STATIC_ASSERT(offsetof(GChead, metatable) == offsetof(GCtab, metatable));
+LJ_STATIC_ASSERT(offsetof(GChead, metatable) == offsetof(GCudata, metatable));
+
+/* The gclist field MUST be at the same offset for all GC objects. */
+LJ_STATIC_ASSERT(offsetof(GChead, gclist) == offsetof(lua_State, gclist));
+LJ_STATIC_ASSERT(offsetof(GChead, gclist) == offsetof(GCproto, gclist));
+LJ_STATIC_ASSERT(offsetof(GChead, gclist) == offsetof(GCfuncL, gclist));
+LJ_STATIC_ASSERT(offsetof(GChead, gclist) == offsetof(GCtab, gclist));
+
+typedef union GCobj {
+  GChead gch;
+  GCstr str;
+  GCupval uv;
+  lua_State th;
+  GCproto pt;
+  GCfunc fn;
+  GCcdata cd;
+  GCtab tab;
+  GCudata ud;
+} GCobj;
+
+/* Macros to convert a GCobj pointer into a specific value. */
+#define gco2str(o)	check_exp((o)->gch.gct == ~LJ_TSTR, &(o)->str)
+#define gco2uv(o)	check_exp((o)->gch.gct == ~LJ_TUPVAL, &(o)->uv)
+#define gco2th(o)	check_exp((o)->gch.gct == ~LJ_TTHREAD, &(o)->th)
+#define gco2pt(o)	check_exp((o)->gch.gct == ~LJ_TPROTO, &(o)->pt)
+#define gco2func(o)	check_exp((o)->gch.gct == ~LJ_TFUNC, &(o)->fn)
+#define gco2cd(o)	check_exp((o)->gch.gct == ~LJ_TCDATA, &(o)->cd)
+#define gco2tab(o)	check_exp((o)->gch.gct == ~LJ_TTAB, &(o)->tab)
+#define gco2ud(o)	check_exp((o)->gch.gct == ~LJ_TUDATA, &(o)->ud)
+
+/* Macro to convert any collectable object into a GCobj pointer. */
+#define obj2gco(v)	((GCobj *)(v))
+
+/* -- TValue getters/setters ---------------------------------------------- */
+
+/* Macros to test types. */
+#if LJ_GC64
+#define itype(o)	((uint32_t)((o)->it64 >> 47))
+#define tvisnil(o)	((o)->it64 == -1)
+#else
+#define itype(o)	((o)->it)
+#define tvisnil(o)	(itype(o) == LJ_TNIL)
+#endif
+#define tvisfalse(o)	(itype(o) == LJ_TFALSE)
+#define tvistrue(o)	(itype(o) == LJ_TTRUE)
+#define tvisbool(o)	(tvisfalse(o) || tvistrue(o))
+#if LJ_64 && !LJ_GC64
+#define tvislightud(o)	(((int32_t)itype(o) >> 15) == -2)
+#else
+#define tvislightud(o)	(itype(o) == LJ_TLIGHTUD)
+#endif
+#define tvisstr(o)	(itype(o) == LJ_TSTR)
+#define tvisfunc(o)	(itype(o) == LJ_TFUNC)
+#define tvisthread(o)	(itype(o) == LJ_TTHREAD)
+#define tvisproto(o)	(itype(o) == LJ_TPROTO)
+#define tviscdata(o)	(itype(o) == LJ_TCDATA)
+#define tvistab(o)	(itype(o) == LJ_TTAB)
+#define tvisudata(o)	(itype(o) == LJ_TUDATA)
+#define tvisnumber(o)	(itype(o) <= LJ_TISNUM)
+#define tvisint(o)	(LJ_DUALNUM && itype(o) == LJ_TISNUM)
+#define tvisnum(o)	(itype(o) < LJ_TISNUM)
+
+#define tvistruecond(o)	(itype(o) < LJ_TISTRUECOND)
+#define tvispri(o)	(itype(o) >= LJ_TISPRI)
+#define tvistabud(o)	(itype(o) <= LJ_TISTABUD)  /* && !tvisnum() */
+#define tvisgcv(o)	((itype(o) - LJ_TISGCV) > (LJ_TNUMX - LJ_TISGCV))
+
+/* Special macros to test numbers for NaN, +0, -0, +1 and raw equality. */
+#define tvisnan(o)	((o)->n != (o)->n)
+#if LJ_64
+#define tviszero(o)	(((o)->u64 << 1) == 0)
+#else
+#define tviszero(o)	(((o)->u32.lo | ((o)->u32.hi << 1)) == 0)
+#endif
+#define tvispzero(o)	((o)->u64 == 0)
+#define tvismzero(o)	((o)->u64 == U64x(80000000,00000000))
+#define tvispone(o)	((o)->u64 == U64x(3ff00000,00000000))
+#define rawnumequal(o1, o2)	((o1)->u64 == (o2)->u64)
+
+/* Macros to convert type ids. */
+#if LJ_64 && !LJ_GC64
+#define itypemap(o) \
+  (tvisnumber(o) ? ~LJ_TNUMX : tvislightud(o) ? ~LJ_TLIGHTUD : ~itype(o))
+#else
+#define itypemap(o)	(tvisnumber(o) ? ~LJ_TNUMX : ~itype(o))
+#endif
+
+/* Macros to get tagged values. */
+#if LJ_GC64
+#define gcval(o)	((GCobj *)(gcrefu((o)->gcr) & LJ_GCVMASK))
+#else
+#define gcval(o)	(gcref((o)->gcr))
+#endif
+#define boolV(o)	check_exp(tvisbool(o), (LJ_TFALSE - itype(o)))
+#if LJ_64
+#define lightudseg(u) \
+  (((u) >> LJ_LIGHTUD_BITS_LO) & ((1 << LJ_LIGHTUD_BITS_SEG)-1))
+#define lightudlo(u) \
+  ((u) & (((uint64_t)1 << LJ_LIGHTUD_BITS_LO) - 1))
+#define lightudup(p) \
+  ((uint32_t)(((p) >> LJ_LIGHTUD_BITS_LO) << (LJ_LIGHTUD_BITS_LO-32)))
+static LJ_AINLINE void *lightudV(global_State *g, cTValue *o)
+{
+  uint64_t u = o->u64;
+  uint64_t seg = lightudseg(u);
+  uint32_t *segmap = mref(g->gc.lightudseg, uint32_t);
+  lj_assertG(tvislightud(o), "lightuserdata expected");
+  if (seg == (1 << LJ_LIGHTUD_BITS_SEG)-1) return NULL;
+  lj_assertG(seg <= g->gc.lightudnum, "bad lightuserdata segment %d", seg);
+  return (void *)(((uint64_t)segmap[seg] << 32) | lightudlo(u));
+}
+#else
+#define lightudV(g, o)	check_exp(tvislightud(o), gcrefp((o)->gcr, void))
+#endif
+#define gcV(o)		check_exp(tvisgcv(o), gcval(o))
+#define strV(o)		check_exp(tvisstr(o), &gcval(o)->str)
+#define funcV(o)	check_exp(tvisfunc(o), &gcval(o)->fn)
+#define threadV(o)	check_exp(tvisthread(o), &gcval(o)->th)
+#define protoV(o)	check_exp(tvisproto(o), &gcval(o)->pt)
+#define cdataV(o)	check_exp(tviscdata(o), &gcval(o)->cd)
+#define tabV(o)		check_exp(tvistab(o), &gcval(o)->tab)
+#define udataV(o)	check_exp(tvisudata(o), &gcval(o)->ud)
+#define numV(o)		check_exp(tvisnum(o), (o)->n)
+#define intV(o)		check_exp(tvisint(o), (int32_t)(o)->i)
+
+/* Macros to set tagged values. */
+#if LJ_GC64
+#define setitype(o, i)		((o)->it = ((i) << 15))
+#define setnilV(o)		((o)->it64 = -1)
+#define setpriV(o, x)		((o)->it64 = (int64_t)~((uint64_t)~(x)<<47))
+#define setboolV(o, x)		((o)->it64 = (int64_t)~((uint64_t)((x)+1)<<47))
+#else
+#define setitype(o, i)		((o)->it = (i))
+#define setnilV(o)		((o)->it = LJ_TNIL)
+#define setboolV(o, x)		((o)->it = LJ_TFALSE-(uint32_t)(x))
+#define setpriV(o, i)		(setitype((o), (i)))
+#endif
+
+static LJ_AINLINE void setrawlightudV(TValue *o, void *p)
+{
+#if LJ_GC64
+  o->u64 = (uint64_t)p | (((uint64_t)LJ_TLIGHTUD) << 47);
+#elif LJ_64
+  o->u64 = (uint64_t)p | (((uint64_t)0xffff) << 48);
+#else
+  setgcrefp(o->gcr, p); setitype(o, LJ_TLIGHTUD);
+#endif
+}
+
+#if LJ_FR2 || LJ_32
+#define contptr(f)		((void *)(f))
+#define setcont(o, f)		((o)->u64 = (uint64_t)(uintptr_t)contptr(f))
+#else
+#define contptr(f) \
+  ((void *)(uintptr_t)(uint32_t)((intptr_t)(f) - (intptr_t)lj_vm_asm_begin))
+#define setcont(o, f) \
+  ((o)->u64 = (uint64_t)(void *)(f) - (uint64_t)lj_vm_asm_begin)
+#endif
+
+static LJ_AINLINE void checklivetv(lua_State *L, TValue *o, const char *msg)
+{
+  UNUSED(L); UNUSED(o); UNUSED(msg);
+#if LUA_USE_ASSERT
+  if (tvisgcv(o)) {
+    lj_assertL(~itype(o) == gcval(o)->gch.gct,
+	       "mismatch of TValue type %d vs GC type %d",
+	       ~itype(o), gcval(o)->gch.gct);
+    /* Copy of isdead check from lj_gc.h to avoid circular include. */
+    lj_assertL(!(gcval(o)->gch.marked & (G(L)->gc.currentwhite ^ 3) & 3), msg);
+  }
+#endif
+}
+
+static LJ_AINLINE void setgcVraw(TValue *o, GCobj *v, uint32_t itype)
+{
+#if LJ_GC64
+  setgcreft(o->gcr, v, itype);
+#else
+  setgcref(o->gcr, v); setitype(o, itype);
+#endif
+}
+
+static LJ_AINLINE void setgcV(lua_State *L, TValue *o, GCobj *v, uint32_t it)
+{
+  setgcVraw(o, v, it);
+  checklivetv(L, o, "store to dead GC object");
+}
+
+#define define_setV(name, type, tag) \
+static LJ_AINLINE void name(lua_State *L, TValue *o, const type *v) \
+{ \
+  setgcV(L, o, obj2gco(v), tag); \
+}
+define_setV(setstrV, GCstr, LJ_TSTR)
+define_setV(setthreadV, lua_State, LJ_TTHREAD)
+define_setV(setprotoV, GCproto, LJ_TPROTO)
+define_setV(setfuncV, GCfunc, LJ_TFUNC)
+define_setV(setcdataV, GCcdata, LJ_TCDATA)
+define_setV(settabV, GCtab, LJ_TTAB)
+define_setV(setudataV, GCudata, LJ_TUDATA)
+
+#define setnumV(o, x)		((o)->n = (x))
+#define setnanV(o)		((o)->u64 = U64x(fff80000,00000000))
+#define setpinfV(o)		((o)->u64 = U64x(7ff00000,00000000))
+#define setminfV(o)		((o)->u64 = U64x(fff00000,00000000))
+
+static LJ_AINLINE void setintV(TValue *o, int32_t i)
+{
+#if LJ_DUALNUM
+  o->i = (uint32_t)i; setitype(o, LJ_TISNUM);
+#else
+  o->n = (lua_Number)i;
+#endif
+}
+
+static LJ_AINLINE void setint64V(TValue *o, int64_t i)
+{
+  if (LJ_DUALNUM && LJ_LIKELY(i == (int64_t)(int32_t)i))
+    setintV(o, (int32_t)i);
+  else
+    setnumV(o, (lua_Number)i);
+}
+
+#if LJ_64
+#define setintptrV(o, i)	setint64V((o), (i))
+#else
+#define setintptrV(o, i)	setintV((o), (i))
+#endif
+
+/* Copy tagged values. */
+static LJ_AINLINE void copyTV(lua_State *L, TValue *o1, const TValue *o2)
+{
+  *o1 = *o2;
+  checklivetv(L, o1, "copy of dead GC object");
+}
+
+/* -- Number to integer conversion ---------------------------------------- */
+
+#if LJ_SOFTFP
+LJ_ASMF int32_t lj_vm_tobit(double x);
+#if LJ_TARGET_MIPS64
+LJ_ASMF int32_t lj_vm_tointg(double x);
+#endif
+#endif
+
+static LJ_AINLINE int32_t lj_num2bit(lua_Number n)
+{
+#if LJ_SOFTFP
+  return lj_vm_tobit(n);
+#else
+  TValue o;
+  o.n = n + 6755399441055744.0;  /* 2^52 + 2^51 */
+  return (int32_t)o.u32.lo;
+#endif
+}
+
+#define lj_num2int(n)   ((int32_t)(n))
+
+/*
+** This must match the JIT backend behavior. In particular for archs
+** that don't have a common hardware instruction for this conversion.
+** Note that signed FP to unsigned int conversions have an undefined
+** result and should never be relied upon in portable FFI code.
+** See also: C99 or C11 standard, 6.3.1.4, footnote of (1).
+*/
+static LJ_AINLINE uint64_t lj_num2u64(lua_Number n)
+{
+#if LJ_TARGET_X86ORX64 || LJ_TARGET_MIPS
+  int64_t i = (int64_t)n;
+  if (i < 0) i = (int64_t)(n - 18446744073709551616.0);
+  return (uint64_t)i;
+#else
+  return (uint64_t)n;
+#endif
+}
+
+static LJ_AINLINE int32_t numberVint(cTValue *o)
+{
+  if (LJ_LIKELY(tvisint(o)))
+    return intV(o);
+  else
+    return lj_num2int(numV(o));
+}
+
+static LJ_AINLINE lua_Number numberVnum(cTValue *o)
+{
+  if (LJ_UNLIKELY(tvisint(o)))
+    return (lua_Number)intV(o);
+  else
+    return numV(o);
+}
+
+/* -- Miscellaneous object handling --------------------------------------- */
+
+/* Names and maps for internal and external object tags. */
+LJ_DATA const char *const lj_obj_typename[1+LUA_TCDATA+1];
+LJ_DATA const char *const lj_obj_itypename[~LJ_TNUMX+1];
+
+#define lj_typename(o)	(lj_obj_itypename[itypemap(o)])
+
+/* Compare two objects without calling metamethods. */
+LJ_FUNC int LJ_FASTCALL lj_obj_equal(cTValue *o1, cTValue *o2);
+LJ_FUNC const void * LJ_FASTCALL lj_obj_ptr(global_State *g, cTValue *o);
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_opt_dce.c b/libs/luajit-cmake/luajit/src/lj_opt_dce.c
new file mode 100644
index 0000000..cff54a8
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_opt_dce.c
@@ -0,0 +1,75 @@
+/*
+** DCE: Dead Code Elimination. Pre-LOOP only -- ASM already performs DCE.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_opt_dce_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_iropt.h"
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)		(&J->cur.ir[(ref)])
+
+/* Scan through all snapshots and mark all referenced instructions. */
+static void dce_marksnap(jit_State *J)
+{
+  SnapNo i, nsnap = J->cur.nsnap;
+  for (i = 0; i < nsnap; i++) {
+    SnapShot *snap = &J->cur.snap[i];
+    SnapEntry *map = &J->cur.snapmap[snap->mapofs];
+    MSize n, nent = snap->nent;
+    for (n = 0; n < nent; n++) {
+      IRRef ref = snap_ref(map[n]);
+      if (ref >= REF_FIRST)
+	irt_setmark(IR(ref)->t);
+    }
+  }
+}
+
+/* Backwards propagate marks. Replace unused instructions with NOPs. */
+static void dce_propagate(jit_State *J)
+{
+  IRRef1 *pchain[IR__MAX];
+  IRRef ins;
+  uint32_t i;
+  for (i = 0; i < IR__MAX; i++) pchain[i] = &J->chain[i];
+  for (ins = J->cur.nins-1; ins >= REF_FIRST; ins--) {
+    IRIns *ir = IR(ins);
+    if (irt_ismarked(ir->t)) {
+      irt_clearmark(ir->t);
+      pchain[ir->o] = &ir->prev;
+    } else if (!ir_sideeff(ir)) {
+      *pchain[ir->o] = ir->prev;  /* Reroute original instruction chain. */
+      lj_ir_nop(ir);
+      continue;
+    }
+    if (ir->op1 >= REF_FIRST) irt_setmark(IR(ir->op1)->t);
+    if (ir->op2 >= REF_FIRST) irt_setmark(IR(ir->op2)->t);
+  }
+}
+
+/* Dead Code Elimination.
+**
+** First backpropagate marks for all used instructions. Then replace
+** the unused ones with a NOP. Note that compressing the IR to eliminate
+** the NOPs does not pay off.
+*/
+void lj_opt_dce(jit_State *J)
+{
+  if ((J->flags & JIT_F_OPT_DCE)) {
+    dce_marksnap(J);
+    dce_propagate(J);
+    memset(J->bpropcache, 0, sizeof(J->bpropcache));  /* Invalidate cache. */
+  }
+}
+
+#undef IR
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_opt_fold.c b/libs/luajit-cmake/luajit/src/lj_opt_fold.c
new file mode 100644
index 0000000..7ef09a1
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_opt_fold.c
@@ -0,0 +1,2602 @@
+/*
+** FOLD: Constant Folding, Algebraic Simplifications and Reassociation.
+** ABCelim: Array Bounds Check Elimination.
+** CSE: Common-Subexpression Elimination.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_opt_fold_c
+#define LUA_CORE
+
+#include <math.h>
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_ircall.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_carith.h"
+#endif
+#include "lj_vm.h"
+#include "lj_strscan.h"
+#include "lj_strfmt.h"
+
+/* Here's a short description how the FOLD engine processes instructions:
+**
+** The FOLD engine receives a single instruction stored in fins (J->fold.ins).
+** The instruction and its operands are used to select matching fold rules.
+** These are applied iteratively until a fixed point is reached.
+**
+** The 8 bit opcode of the instruction itself plus the opcodes of the
+** two instructions referenced by its operands form a 24 bit key
+** 'ins left right' (unused operands -> 0, literals -> lowest 8 bits).
+**
+** This key is used for partial matching against the fold rules. The
+** left/right operand fields of the key are successively masked with
+** the 'any' wildcard, from most specific to least specific:
+**
+**   ins left right
+**   ins any  right
+**   ins left any
+**   ins any  any
+**
+** The masked key is used to lookup a matching fold rule in a semi-perfect
+** hash table. If a matching rule is found, the related fold function is run.
+** Multiple rules can share the same fold function. A fold rule may return
+** one of several special values:
+**
+** - NEXTFOLD means no folding was applied, because an additional test
+**   inside the fold function failed. Matching continues against less
+**   specific fold rules. Finally the instruction is passed on to CSE.
+**
+** - RETRYFOLD means the instruction was modified in-place. Folding is
+**   retried as if this instruction had just been received.
+**
+** All other return values are terminal actions -- no further folding is
+** applied:
+**
+** - INTFOLD(i) returns a reference to the integer constant i.
+**
+** - LEFTFOLD and RIGHTFOLD return the left/right operand reference
+**   without emitting an instruction.
+**
+** - CSEFOLD and EMITFOLD pass the instruction directly to CSE or emit
+**   it without passing through any further optimizations.
+**
+** - FAILFOLD, DROPFOLD and CONDFOLD only apply to instructions which have
+**   no result (e.g. guarded assertions): FAILFOLD means the guard would
+**   always fail, i.e. the current trace is pointless. DROPFOLD means
+**   the guard is always true and has been eliminated. CONDFOLD is a
+**   shortcut for FAILFOLD + cond (i.e. drop if true, otherwise fail).
+**
+** - Any other return value is interpreted as an IRRef or TRef. This
+**   can be a reference to an existing or a newly created instruction.
+**   Only the least-significant 16 bits (IRRef1) are used to form a TRef
+**   which is finally returned to the caller.
+**
+** The FOLD engine receives instructions both from the trace recorder and
+** substituted instructions from LOOP unrolling. This means all types
+** of instructions may end up here, even though the recorder bypasses
+** FOLD in some cases. Thus all loads, stores and allocations must have
+** an any/any rule to avoid being passed on to CSE.
+**
+** Carefully read the following requirements before adding or modifying
+** any fold rules:
+**
+** Requirement #1: All fold rules must preserve their destination type.
+**
+** Consistently use INTFOLD() (KINT result) or lj_ir_knum() (KNUM result).
+** Never use lj_ir_knumint() which can have either a KINT or KNUM result.
+**
+** Requirement #2: Fold rules should not create *new* instructions which
+** reference operands *across* PHIs.
+**
+** E.g. a RETRYFOLD with 'fins->op1 = fleft->op1' is invalid if the
+** left operand is a PHI. Then fleft->op1 would point across the PHI
+** frontier to an invariant instruction. Adding a PHI for this instruction
+** would be counterproductive. The solution is to add a barrier which
+** prevents folding across PHIs, i.e. 'PHIBARRIER(fleft)' in this case.
+** The only exception is for recurrences with high latencies like
+** repeated int->num->int conversions.
+**
+** One could relax this condition a bit if the referenced instruction is
+** a PHI, too. But this often leads to worse code due to excessive
+** register shuffling.
+**
+** Note: returning *existing* instructions (e.g. LEFTFOLD) is ok, though.
+** Even returning fleft->op1 would be ok, because a new PHI will added,
+** if needed. But again, this leads to excessive register shuffling and
+** should be avoided.
+**
+** Requirement #3: The set of all fold rules must be monotonic to guarantee
+** termination.
+**
+** The goal is optimization, so one primarily wants to add strength-reducing
+** rules. This means eliminating an instruction or replacing an instruction
+** with one or more simpler instructions. Don't add fold rules which point
+** into the other direction.
+**
+** Some rules (like commutativity) do not directly reduce the strength of
+** an instruction, but enable other fold rules (e.g. by moving constants
+** to the right operand). These rules must be made unidirectional to avoid
+** cycles.
+**
+** Rule of thumb: the trace recorder expands the IR and FOLD shrinks it.
+*/
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)		(&J->cur.ir[(ref)])
+#define fins		(&J->fold.ins)
+#define fleft		(J->fold.left)
+#define fright		(J->fold.right)
+#define knumleft	(ir_knum(fleft)->n)
+#define knumright	(ir_knum(fright)->n)
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+/* Fold function type. Fastcall on x86 significantly reduces their size. */
+typedef IRRef (LJ_FASTCALL *FoldFunc)(jit_State *J);
+
+/* Macros for the fold specs, so buildvm can recognize them. */
+#define LJFOLD(x)
+#define LJFOLDX(x)
+#define LJFOLDF(name)	static TRef LJ_FASTCALL fold_##name(jit_State *J)
+/* Note: They must be at the start of a line or buildvm ignores them! */
+
+/* Barrier to prevent using operands across PHIs. */
+#define PHIBARRIER(ir)	if (irt_isphi((ir)->t)) return NEXTFOLD
+
+/* Barrier to prevent folding across a GC step.
+** GC steps can only happen at the head of a trace and at LOOP.
+** And the GC is only driven forward if there's at least one allocation.
+*/
+#define gcstep_barrier(J, ref) \
+  ((ref) < J->chain[IR_LOOP] && \
+   (J->chain[IR_SNEW] || J->chain[IR_XSNEW] || \
+    J->chain[IR_TNEW] || J->chain[IR_TDUP] || \
+    J->chain[IR_CNEW] || J->chain[IR_CNEWI] || \
+    J->chain[IR_BUFSTR] || J->chain[IR_TOSTR] || J->chain[IR_CALLA]))
+
+/* -- Constant folding for FP numbers ------------------------------------- */
+
+LJFOLD(ADD KNUM KNUM)
+LJFOLD(SUB KNUM KNUM)
+LJFOLD(MUL KNUM KNUM)
+LJFOLD(DIV KNUM KNUM)
+LJFOLD(LDEXP KNUM KNUM)
+LJFOLD(MIN KNUM KNUM)
+LJFOLD(MAX KNUM KNUM)
+LJFOLDF(kfold_numarith)
+{
+  lua_Number a = knumleft;
+  lua_Number b = knumright;
+  lua_Number y = lj_vm_foldarith(a, b, fins->o - IR_ADD);
+  return lj_ir_knum(J, y);
+}
+
+LJFOLD(NEG KNUM FLOAD)
+LJFOLD(ABS KNUM FLOAD)
+LJFOLDF(kfold_numabsneg)
+{
+  lua_Number a = knumleft;
+  lua_Number y = lj_vm_foldarith(a, a, fins->o - IR_ADD);
+  return lj_ir_knum(J, y);
+}
+
+LJFOLD(LDEXP KNUM KINT)
+LJFOLDF(kfold_ldexp)
+{
+#if LJ_TARGET_X86ORX64
+  UNUSED(J);
+  return NEXTFOLD;
+#else
+  return lj_ir_knum(J, ldexp(knumleft, fright->i));
+#endif
+}
+
+LJFOLD(FPMATH KNUM any)
+LJFOLDF(kfold_fpmath)
+{
+  lua_Number a = knumleft;
+  lua_Number y = lj_vm_foldfpm(a, fins->op2);
+  return lj_ir_knum(J, y);
+}
+
+LJFOLD(CALLN KNUM any)
+LJFOLDF(kfold_fpcall1)
+{
+  const CCallInfo *ci = &lj_ir_callinfo[fins->op2];
+  if (CCI_TYPE(ci) == IRT_NUM) {
+    double y = ((double (*)(double))ci->func)(knumleft);
+    return lj_ir_knum(J, y);
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(CALLN CARG IRCALL_atan2)
+LJFOLDF(kfold_fpcall2)
+{
+  if (irref_isk(fleft->op1) && irref_isk(fleft->op2)) {
+    const CCallInfo *ci = &lj_ir_callinfo[fins->op2];
+    double a = ir_knum(IR(fleft->op1))->n;
+    double b = ir_knum(IR(fleft->op2))->n;
+    double y = ((double (*)(double, double))ci->func)(a, b);
+    return lj_ir_knum(J, y);
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(POW KNUM KNUM)
+LJFOLDF(kfold_numpow)
+{
+  return lj_ir_knum(J, lj_vm_foldarith(knumleft, knumright, IR_POW - IR_ADD));
+}
+
+/* Must not use kfold_kref for numbers (could be NaN). */
+LJFOLD(EQ KNUM KNUM)
+LJFOLD(NE KNUM KNUM)
+LJFOLD(LT KNUM KNUM)
+LJFOLD(GE KNUM KNUM)
+LJFOLD(LE KNUM KNUM)
+LJFOLD(GT KNUM KNUM)
+LJFOLD(ULT KNUM KNUM)
+LJFOLD(UGE KNUM KNUM)
+LJFOLD(ULE KNUM KNUM)
+LJFOLD(UGT KNUM KNUM)
+LJFOLDF(kfold_numcomp)
+{
+  return CONDFOLD(lj_ir_numcmp(knumleft, knumright, (IROp)fins->o));
+}
+
+/* -- Constant folding for 32 bit integers -------------------------------- */
+
+static int32_t kfold_intop(int32_t k1, int32_t k2, IROp op)
+{
+  switch (op) {
+  case IR_ADD: k1 += k2; break;
+  case IR_SUB: k1 -= k2; break;
+  case IR_MUL: k1 *= k2; break;
+  case IR_MOD: k1 = lj_vm_modi(k1, k2); break;
+  case IR_NEG: k1 = -k1; break;
+  case IR_BAND: k1 &= k2; break;
+  case IR_BOR: k1 |= k2; break;
+  case IR_BXOR: k1 ^= k2; break;
+  case IR_BSHL: k1 <<= (k2 & 31); break;
+  case IR_BSHR: k1 = (int32_t)((uint32_t)k1 >> (k2 & 31)); break;
+  case IR_BSAR: k1 >>= (k2 & 31); break;
+  case IR_BROL: k1 = (int32_t)lj_rol((uint32_t)k1, (k2 & 31)); break;
+  case IR_BROR: k1 = (int32_t)lj_ror((uint32_t)k1, (k2 & 31)); break;
+  case IR_MIN: k1 = k1 < k2 ? k1 : k2; break;
+  case IR_MAX: k1 = k1 > k2 ? k1 : k2; break;
+  default: lj_assertX(0, "bad IR op %d", op); break;
+  }
+  return k1;
+}
+
+LJFOLD(ADD KINT KINT)
+LJFOLD(SUB KINT KINT)
+LJFOLD(MUL KINT KINT)
+LJFOLD(MOD KINT KINT)
+LJFOLD(NEG KINT KINT)
+LJFOLD(BAND KINT KINT)
+LJFOLD(BOR KINT KINT)
+LJFOLD(BXOR KINT KINT)
+LJFOLD(BSHL KINT KINT)
+LJFOLD(BSHR KINT KINT)
+LJFOLD(BSAR KINT KINT)
+LJFOLD(BROL KINT KINT)
+LJFOLD(BROR KINT KINT)
+LJFOLD(MIN KINT KINT)
+LJFOLD(MAX KINT KINT)
+LJFOLDF(kfold_intarith)
+{
+  return INTFOLD(kfold_intop(fleft->i, fright->i, (IROp)fins->o));
+}
+
+LJFOLD(ADDOV KINT KINT)
+LJFOLD(SUBOV KINT KINT)
+LJFOLD(MULOV KINT KINT)
+LJFOLDF(kfold_intovarith)
+{
+  lua_Number n = lj_vm_foldarith((lua_Number)fleft->i, (lua_Number)fright->i,
+				 fins->o - IR_ADDOV);
+  int32_t k = lj_num2int(n);
+  if (n != (lua_Number)k)
+    return FAILFOLD;
+  return INTFOLD(k);
+}
+
+LJFOLD(BNOT KINT)
+LJFOLDF(kfold_bnot)
+{
+  return INTFOLD(~fleft->i);
+}
+
+LJFOLD(BSWAP KINT)
+LJFOLDF(kfold_bswap)
+{
+  return INTFOLD((int32_t)lj_bswap((uint32_t)fleft->i));
+}
+
+LJFOLD(LT KINT KINT)
+LJFOLD(GE KINT KINT)
+LJFOLD(LE KINT KINT)
+LJFOLD(GT KINT KINT)
+LJFOLD(ULT KINT KINT)
+LJFOLD(UGE KINT KINT)
+LJFOLD(ULE KINT KINT)
+LJFOLD(UGT KINT KINT)
+LJFOLD(ABC KINT KINT)
+LJFOLDF(kfold_intcomp)
+{
+  int32_t a = fleft->i, b = fright->i;
+  switch ((IROp)fins->o) {
+  case IR_LT: return CONDFOLD(a < b);
+  case IR_GE: return CONDFOLD(a >= b);
+  case IR_LE: return CONDFOLD(a <= b);
+  case IR_GT: return CONDFOLD(a > b);
+  case IR_ULT: return CONDFOLD((uint32_t)a < (uint32_t)b);
+  case IR_UGE: return CONDFOLD((uint32_t)a >= (uint32_t)b);
+  case IR_ULE: return CONDFOLD((uint32_t)a <= (uint32_t)b);
+  case IR_ABC:
+  case IR_UGT: return CONDFOLD((uint32_t)a > (uint32_t)b);
+  default: lj_assertJ(0, "bad IR op %d", fins->o); return FAILFOLD;
+  }
+}
+
+LJFOLD(UGE any KINT)
+LJFOLDF(kfold_intcomp0)
+{
+  if (fright->i == 0)
+    return DROPFOLD;
+  return NEXTFOLD;
+}
+
+/* -- Constant folding for 64 bit integers -------------------------------- */
+
+static uint64_t kfold_int64arith(jit_State *J, uint64_t k1, uint64_t k2,
+				 IROp op)
+{
+  UNUSED(J);
+#if LJ_HASFFI
+  switch (op) {
+  case IR_ADD: k1 += k2; break;
+  case IR_SUB: k1 -= k2; break;
+  case IR_MUL: k1 *= k2; break;
+  case IR_BAND: k1 &= k2; break;
+  case IR_BOR: k1 |= k2; break;
+  case IR_BXOR: k1 ^= k2; break;
+  case IR_BSHL: k1 <<= (k2 & 63); break;
+  case IR_BSHR: k1 = (int32_t)((uint32_t)k1 >> (k2 & 63)); break;
+  case IR_BSAR: k1 >>= (k2 & 63); break;
+  case IR_BROL: k1 = (int32_t)lj_rol((uint32_t)k1, (k2 & 63)); break;
+  case IR_BROR: k1 = (int32_t)lj_ror((uint32_t)k1, (k2 & 63)); break;
+  default: lj_assertJ(0, "bad IR op %d", op); break;
+  }
+#else
+  UNUSED(k2); UNUSED(op);
+  lj_assertJ(0, "FFI IR op without FFI");
+#endif
+  return k1;
+}
+
+LJFOLD(ADD KINT64 KINT64)
+LJFOLD(SUB KINT64 KINT64)
+LJFOLD(MUL KINT64 KINT64)
+LJFOLD(BAND KINT64 KINT64)
+LJFOLD(BOR KINT64 KINT64)
+LJFOLD(BXOR KINT64 KINT64)
+LJFOLDF(kfold_int64arith)
+{
+  return INT64FOLD(kfold_int64arith(J, ir_k64(fleft)->u64,
+				    ir_k64(fright)->u64, (IROp)fins->o));
+}
+
+LJFOLD(DIV KINT64 KINT64)
+LJFOLD(MOD KINT64 KINT64)
+LJFOLD(POW KINT64 KINT64)
+LJFOLDF(kfold_int64arith2)
+{
+#if LJ_HASFFI
+  uint64_t k1 = ir_k64(fleft)->u64, k2 = ir_k64(fright)->u64;
+  if (irt_isi64(fins->t)) {
+    k1 = fins->o == IR_DIV ? lj_carith_divi64((int64_t)k1, (int64_t)k2) :
+	 fins->o == IR_MOD ? lj_carith_modi64((int64_t)k1, (int64_t)k2) :
+			     lj_carith_powi64((int64_t)k1, (int64_t)k2);
+  } else {
+    k1 = fins->o == IR_DIV ? lj_carith_divu64(k1, k2) :
+	 fins->o == IR_MOD ? lj_carith_modu64(k1, k2) :
+			     lj_carith_powu64(k1, k2);
+  }
+  return INT64FOLD(k1);
+#else
+  UNUSED(J); lj_assertJ(0, "FFI IR op without FFI"); return FAILFOLD;
+#endif
+}
+
+LJFOLD(BSHL KINT64 KINT)
+LJFOLD(BSHR KINT64 KINT)
+LJFOLD(BSAR KINT64 KINT)
+LJFOLD(BROL KINT64 KINT)
+LJFOLD(BROR KINT64 KINT)
+LJFOLDF(kfold_int64shift)
+{
+#if LJ_HASFFI
+  uint64_t k = ir_k64(fleft)->u64;
+  int32_t sh = (fright->i & 63);
+  return INT64FOLD(lj_carith_shift64(k, sh, fins->o - IR_BSHL));
+#else
+  UNUSED(J); lj_assertJ(0, "FFI IR op without FFI"); return FAILFOLD;
+#endif
+}
+
+LJFOLD(BNOT KINT64)
+LJFOLDF(kfold_bnot64)
+{
+#if LJ_HASFFI
+  return INT64FOLD(~ir_k64(fleft)->u64);
+#else
+  UNUSED(J); lj_assertJ(0, "FFI IR op without FFI"); return FAILFOLD;
+#endif
+}
+
+LJFOLD(BSWAP KINT64)
+LJFOLDF(kfold_bswap64)
+{
+#if LJ_HASFFI
+  return INT64FOLD(lj_bswap64(ir_k64(fleft)->u64));
+#else
+  UNUSED(J); lj_assertJ(0, "FFI IR op without FFI"); return FAILFOLD;
+#endif
+}
+
+LJFOLD(LT KINT64 KINT64)
+LJFOLD(GE KINT64 KINT64)
+LJFOLD(LE KINT64 KINT64)
+LJFOLD(GT KINT64 KINT64)
+LJFOLD(ULT KINT64 KINT64)
+LJFOLD(UGE KINT64 KINT64)
+LJFOLD(ULE KINT64 KINT64)
+LJFOLD(UGT KINT64 KINT64)
+LJFOLDF(kfold_int64comp)
+{
+#if LJ_HASFFI
+  uint64_t a = ir_k64(fleft)->u64, b = ir_k64(fright)->u64;
+  switch ((IROp)fins->o) {
+  case IR_LT: return CONDFOLD((int64_t)a < (int64_t)b);
+  case IR_GE: return CONDFOLD((int64_t)a >= (int64_t)b);
+  case IR_LE: return CONDFOLD((int64_t)a <= (int64_t)b);
+  case IR_GT: return CONDFOLD((int64_t)a > (int64_t)b);
+  case IR_ULT: return CONDFOLD(a < b);
+  case IR_UGE: return CONDFOLD(a >= b);
+  case IR_ULE: return CONDFOLD(a <= b);
+  case IR_UGT: return CONDFOLD(a > b);
+  default: lj_assertJ(0, "bad IR op %d", fins->o); return FAILFOLD;
+  }
+#else
+  UNUSED(J); lj_assertJ(0, "FFI IR op without FFI"); return FAILFOLD;
+#endif
+}
+
+LJFOLD(UGE any KINT64)
+LJFOLDF(kfold_int64comp0)
+{
+#if LJ_HASFFI
+  if (ir_k64(fright)->u64 == 0)
+    return DROPFOLD;
+  return NEXTFOLD;
+#else
+  UNUSED(J); lj_assertJ(0, "FFI IR op without FFI"); return FAILFOLD;
+#endif
+}
+
+/* -- Constant folding for strings ---------------------------------------- */
+
+LJFOLD(SNEW KKPTR KINT)
+LJFOLDF(kfold_snew_kptr)
+{
+  GCstr *s = lj_str_new(J->L, (const char *)ir_kptr(fleft), (size_t)fright->i);
+  return lj_ir_kstr(J, s);
+}
+
+LJFOLD(SNEW any KINT)
+LJFOLD(XSNEW any KINT)
+LJFOLDF(kfold_snew_empty)
+{
+  if (fright->i == 0)
+    return lj_ir_kstr(J, &J2G(J)->strempty);
+  return NEXTFOLD;
+}
+
+LJFOLD(STRREF KGC KINT)
+LJFOLDF(kfold_strref)
+{
+  GCstr *str = ir_kstr(fleft);
+  lj_assertJ((MSize)fright->i <= str->len, "bad string ref");
+  return lj_ir_kkptr(J, (char *)strdata(str) + fright->i);
+}
+
+LJFOLD(STRREF SNEW any)
+LJFOLDF(kfold_strref_snew)
+{
+  PHIBARRIER(fleft);
+  if (irref_isk(fins->op2) && fright->i == 0) {
+    return fleft->op1;  /* strref(snew(ptr, len), 0) ==> ptr */
+  } else {
+    /* Reassociate: strref(snew(strref(str, a), len), b) ==> strref(str, a+b) */
+    IRIns *ir = IR(fleft->op1);
+    if (ir->o == IR_STRREF) {
+      IRRef1 str = ir->op1;  /* IRIns * is not valid across emitir. */
+      PHIBARRIER(ir);
+      fins->op2 = emitir(IRTI(IR_ADD), ir->op2, fins->op2); /* Clobbers fins! */
+      fins->op1 = str;
+      fins->ot = IRT(IR_STRREF, IRT_PGC);
+      return RETRYFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(CALLN CARG IRCALL_lj_str_cmp)
+LJFOLDF(kfold_strcmp)
+{
+  if (irref_isk(fleft->op1) && irref_isk(fleft->op2)) {
+    GCstr *a = ir_kstr(IR(fleft->op1));
+    GCstr *b = ir_kstr(IR(fleft->op2));
+    return INTFOLD(lj_str_cmp(a, b));
+  }
+  return NEXTFOLD;
+}
+
+/* -- Constant folding and forwarding for buffers ------------------------- */
+
+/*
+** Buffer ops perform stores, but their effect is limited to the buffer
+** itself. Also, buffer ops are chained: a use of an op implies a use of
+** all other ops up the chain. Conversely, if an op is unused, all ops
+** up the chain can go unsed. This largely eliminates the need to treat
+** them as stores.
+**
+** Alas, treating them as normal (IRM_N) ops doesn't work, because they
+** cannot be CSEd in isolation. CSE for IRM_N is implicitly done in LOOP
+** or if FOLD is disabled.
+**
+** The compromise is to declare them as loads, emit them like stores and
+** CSE whole chains manually when the BUFSTR is to be emitted. Any chain
+** fragments left over from CSE are eliminated by DCE.
+**
+** The string buffer methods emit a USE instead of a BUFSTR to keep the
+** chain alive.
+*/
+
+LJFOLD(BUFHDR any any)
+LJFOLDF(bufhdr_merge)
+{
+  return fins->op2 == IRBUFHDR_WRITE ? CSEFOLD : EMITFOLD;
+}
+
+LJFOLD(BUFPUT any BUFSTR)
+LJFOLDF(bufput_bufstr)
+{
+  if ((J->flags & JIT_F_OPT_FWD)) {
+    IRRef hdr = fright->op2;
+    /* New buffer, no other buffer op inbetween and same buffer? */
+    if (fleft->o == IR_BUFHDR && fleft->op2 == IRBUFHDR_RESET &&
+	fleft->prev == hdr &&
+	fleft->op1 == IR(hdr)->op1 &&
+	!(irt_isphi(fright->t) && IR(hdr)->prev) &&
+	(!LJ_HASBUFFER || J->chain[IR_CALLA] < hdr)) {
+      IRRef ref = fins->op1;
+      IR(ref)->op2 = IRBUFHDR_APPEND;  /* Modify BUFHDR. */
+      IR(ref)->op1 = fright->op1;
+      return ref;
+    }
+    /* Replay puts to global temporary buffer. */
+    if (IR(hdr)->op2 == IRBUFHDR_RESET && !irt_isphi(fright->t)) {
+      IRIns *ir = IR(fright->op1);
+      /* For now only handle single string.reverse .lower .upper .rep. */
+      if (ir->o == IR_CALLL &&
+	  ir->op2 >= IRCALL_lj_buf_putstr_reverse &&
+	  ir->op2 <= IRCALL_lj_buf_putstr_rep) {
+	IRIns *carg1 = IR(ir->op1);
+	if (ir->op2 == IRCALL_lj_buf_putstr_rep) {
+	  IRIns *carg2 = IR(carg1->op1);
+	  if (carg2->op1 == hdr) {
+	    return lj_ir_call(J, ir->op2, fins->op1, carg2->op2, carg1->op2);
+	  }
+	} else if (carg1->op1 == hdr) {
+	  return lj_ir_call(J, ir->op2, fins->op1, carg1->op2);
+	}
+      }
+    }
+  }
+  return EMITFOLD;  /* Always emit, CSE later. */
+}
+
+LJFOLD(BUFPUT any any)
+LJFOLDF(bufput_kgc)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD) && fright->o == IR_KGC) {
+    GCstr *s2 = ir_kstr(fright);
+    if (s2->len == 0) {  /* Empty string? */
+      return LEFTFOLD;
+    } else {
+      if (fleft->o == IR_BUFPUT && irref_isk(fleft->op2) &&
+	  !irt_isphi(fleft->t)) {  /* Join two constant string puts in a row. */
+	GCstr *s1 = ir_kstr(IR(fleft->op2));
+	IRRef kref = lj_ir_kstr(J, lj_buf_cat2str(J->L, s1, s2));
+	/* lj_ir_kstr() may realloc the IR and invalidates any IRIns *. */
+	IR(fins->op1)->op2 = kref;  /* Modify previous BUFPUT. */
+	return fins->op1;
+      }
+    }
+  }
+  return EMITFOLD;  /* Always emit, CSE later. */
+}
+
+LJFOLD(BUFSTR any any)
+LJFOLDF(bufstr_kfold_cse)
+{
+  lj_assertJ(fleft->o == IR_BUFHDR || fleft->o == IR_BUFPUT ||
+	     fleft->o == IR_CALLL,
+	     "bad buffer constructor IR op %d", fleft->o);
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD)) {
+    if (fleft->o == IR_BUFHDR) {  /* No put operations? */
+      if (fleft->op2 == IRBUFHDR_RESET)  /* Empty buffer? */
+	return lj_ir_kstr(J, &J2G(J)->strempty);
+      fins->op1 = fleft->op1;
+      fins->op2 = fleft->prev;  /* Relies on checks in bufput_append. */
+      return CSEFOLD;
+    } else if (fleft->o == IR_BUFPUT) {
+      IRIns *irb = IR(fleft->op1);
+      if (irb->o == IR_BUFHDR && irb->op2 == IRBUFHDR_RESET)
+	return fleft->op2;  /* Shortcut for a single put operation. */
+    }
+  }
+  /* Try to CSE the whole chain. */
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_CSE)) {
+    IRRef ref = J->chain[IR_BUFSTR];
+    while (ref) {
+      IRIns *irs = IR(ref), *ira = fleft, *irb = IR(irs->op1);
+      while (ira->o == irb->o && ira->op2 == irb->op2) {
+	lj_assertJ(ira->o == IR_BUFHDR || ira->o == IR_BUFPUT ||
+		   ira->o == IR_CALLL || ira->o == IR_CARG,
+		   "bad buffer constructor IR op %d", ira->o);
+	if (ira->o == IR_BUFHDR && ira->op2 == IRBUFHDR_RESET)
+	  return ref;  /* CSE succeeded. */
+	if (ira->o == IR_CALLL && ira->op2 == IRCALL_lj_buf_puttab)
+	  break;
+	ira = IR(ira->op1);
+	irb = IR(irb->op1);
+      }
+      ref = irs->prev;
+    }
+  }
+  return EMITFOLD;  /* No CSE possible. */
+}
+
+LJFOLD(CALLL CARG IRCALL_lj_buf_putstr_reverse)
+LJFOLD(CALLL CARG IRCALL_lj_buf_putstr_upper)
+LJFOLD(CALLL CARG IRCALL_lj_buf_putstr_lower)
+LJFOLD(CALLL CARG IRCALL_lj_strfmt_putquoted)
+LJFOLDF(bufput_kfold_op)
+{
+  if (irref_isk(fleft->op2)) {
+    const CCallInfo *ci = &lj_ir_callinfo[fins->op2];
+    SBuf *sb = lj_buf_tmp_(J->L);
+    sb = ((SBuf * (LJ_FASTCALL *)(SBuf *, GCstr *))ci->func)(sb,
+						       ir_kstr(IR(fleft->op2)));
+    fins->o = IR_BUFPUT;
+    fins->op1 = fleft->op1;
+    fins->op2 = lj_ir_kstr(J, lj_buf_tostr(sb));
+    return RETRYFOLD;
+  }
+  return EMITFOLD;  /* Always emit, CSE later. */
+}
+
+LJFOLD(CALLL CARG IRCALL_lj_buf_putstr_rep)
+LJFOLDF(bufput_kfold_rep)
+{
+  if (irref_isk(fleft->op2)) {
+    IRIns *irc = IR(fleft->op1);
+    if (irref_isk(irc->op2)) {
+      SBuf *sb = lj_buf_tmp_(J->L);
+      sb = lj_buf_putstr_rep(sb, ir_kstr(IR(irc->op2)), IR(fleft->op2)->i);
+      fins->o = IR_BUFPUT;
+      fins->op1 = irc->op1;
+      fins->op2 = lj_ir_kstr(J, lj_buf_tostr(sb));
+      return RETRYFOLD;
+    }
+  }
+  return EMITFOLD;  /* Always emit, CSE later. */
+}
+
+LJFOLD(CALLL CARG IRCALL_lj_strfmt_putfxint)
+LJFOLD(CALLL CARG IRCALL_lj_strfmt_putfnum_int)
+LJFOLD(CALLL CARG IRCALL_lj_strfmt_putfnum_uint)
+LJFOLD(CALLL CARG IRCALL_lj_strfmt_putfnum)
+LJFOLD(CALLL CARG IRCALL_lj_strfmt_putfstr)
+LJFOLD(CALLL CARG IRCALL_lj_strfmt_putfchar)
+LJFOLDF(bufput_kfold_fmt)
+{
+  IRIns *irc = IR(fleft->op1);
+  lj_assertJ(irref_isk(irc->op2), "SFormat must be const");
+  if (irref_isk(fleft->op2)) {
+    SFormat sf = (SFormat)IR(irc->op2)->i;
+    IRIns *ira = IR(fleft->op2);
+    SBuf *sb = lj_buf_tmp_(J->L);
+    switch (fins->op2) {
+    case IRCALL_lj_strfmt_putfxint:
+      sb = lj_strfmt_putfxint(sb, sf, ir_k64(ira)->u64);
+      break;
+    case IRCALL_lj_strfmt_putfstr:
+      sb = lj_strfmt_putfstr(sb, sf, ir_kstr(ira));
+      break;
+    case IRCALL_lj_strfmt_putfchar:
+      sb = lj_strfmt_putfchar(sb, sf, ira->i);
+      break;
+    case IRCALL_lj_strfmt_putfnum_int:
+    case IRCALL_lj_strfmt_putfnum_uint:
+    case IRCALL_lj_strfmt_putfnum:
+    default: {
+      const CCallInfo *ci = &lj_ir_callinfo[fins->op2];
+      sb = ((SBuf * (*)(SBuf *, SFormat, lua_Number))ci->func)(sb, sf,
+							 ir_knum(ira)->n);
+      break;
+      }
+    }
+    fins->o = IR_BUFPUT;
+    fins->op1 = irc->op1;
+    fins->op2 = lj_ir_kstr(J, lj_buf_tostr(sb));
+    return RETRYFOLD;
+  }
+  return EMITFOLD;  /* Always emit, CSE later. */
+}
+
+/* -- Constant folding of pointer arithmetic ------------------------------ */
+
+LJFOLD(ADD KGC KINT)
+LJFOLD(ADD KGC KINT64)
+LJFOLDF(kfold_add_kgc)
+{
+  GCobj *o = ir_kgc(fleft);
+#if LJ_64
+  ptrdiff_t ofs = (ptrdiff_t)ir_kint64(fright)->u64;
+#else
+  ptrdiff_t ofs = fright->i;
+#endif
+#if LJ_HASFFI
+  if (irt_iscdata(fleft->t)) {
+    CType *ct = ctype_raw(ctype_ctsG(J2G(J)), gco2cd(o)->ctypeid);
+    if (ctype_isnum(ct->info) || ctype_isenum(ct->info) ||
+	ctype_isptr(ct->info) || ctype_isfunc(ct->info) ||
+	ctype_iscomplex(ct->info) || ctype_isvector(ct->info))
+      return lj_ir_kkptr(J, (char *)o + ofs);
+  }
+#endif
+  return lj_ir_kptr(J, (char *)o + ofs);
+}
+
+LJFOLD(ADD KPTR KINT)
+LJFOLD(ADD KPTR KINT64)
+LJFOLD(ADD KKPTR KINT)
+LJFOLD(ADD KKPTR KINT64)
+LJFOLDF(kfold_add_kptr)
+{
+  void *p = ir_kptr(fleft);
+#if LJ_64
+  ptrdiff_t ofs = (ptrdiff_t)ir_kint64(fright)->u64;
+#else
+  ptrdiff_t ofs = fright->i;
+#endif
+  return lj_ir_kptr_(J, fleft->o, (char *)p + ofs);
+}
+
+LJFOLD(ADD any KGC)
+LJFOLD(ADD any KPTR)
+LJFOLD(ADD any KKPTR)
+LJFOLDF(kfold_add_kright)
+{
+  if (fleft->o == IR_KINT || fleft->o == IR_KINT64) {
+    IRRef1 tmp = fins->op1; fins->op1 = fins->op2; fins->op2 = tmp;
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+/* -- Constant folding of conversions ------------------------------------- */
+
+LJFOLD(TOBIT KNUM KNUM)
+LJFOLDF(kfold_tobit)
+{
+  return INTFOLD(lj_num2bit(knumleft));
+}
+
+LJFOLD(CONV KINT IRCONV_NUM_INT)
+LJFOLDF(kfold_conv_kint_num)
+{
+  return lj_ir_knum(J, (lua_Number)fleft->i);
+}
+
+LJFOLD(CONV KINT IRCONV_NUM_U32)
+LJFOLDF(kfold_conv_kintu32_num)
+{
+  return lj_ir_knum(J, (lua_Number)(uint32_t)fleft->i);
+}
+
+LJFOLD(CONV KINT IRCONV_INT_I8)
+LJFOLD(CONV KINT IRCONV_INT_U8)
+LJFOLD(CONV KINT IRCONV_INT_I16)
+LJFOLD(CONV KINT IRCONV_INT_U16)
+LJFOLDF(kfold_conv_kint_ext)
+{
+  int32_t k = fleft->i;
+  if ((fins->op2 & IRCONV_SRCMASK) == IRT_I8) k = (int8_t)k;
+  else if ((fins->op2 & IRCONV_SRCMASK) == IRT_U8) k = (uint8_t)k;
+  else if ((fins->op2 & IRCONV_SRCMASK) == IRT_I16) k = (int16_t)k;
+  else k = (uint16_t)k;
+  return INTFOLD(k);
+}
+
+LJFOLD(CONV KINT IRCONV_I64_INT)
+LJFOLD(CONV KINT IRCONV_U64_INT)
+LJFOLD(CONV KINT IRCONV_I64_U32)
+LJFOLD(CONV KINT IRCONV_U64_U32)
+LJFOLDF(kfold_conv_kint_i64)
+{
+  if ((fins->op2 & IRCONV_SEXT))
+    return INT64FOLD((uint64_t)(int64_t)fleft->i);
+  else
+    return INT64FOLD((uint64_t)(int64_t)(uint32_t)fleft->i);
+}
+
+LJFOLD(CONV KINT64 IRCONV_NUM_I64)
+LJFOLDF(kfold_conv_kint64_num_i64)
+{
+  return lj_ir_knum(J, (lua_Number)(int64_t)ir_kint64(fleft)->u64);
+}
+
+LJFOLD(CONV KINT64 IRCONV_NUM_U64)
+LJFOLDF(kfold_conv_kint64_num_u64)
+{
+  return lj_ir_knum(J, (lua_Number)ir_kint64(fleft)->u64);
+}
+
+LJFOLD(CONV KINT64 IRCONV_INT_I64)
+LJFOLD(CONV KINT64 IRCONV_U32_I64)
+LJFOLDF(kfold_conv_kint64_int_i64)
+{
+  return INTFOLD((int32_t)ir_kint64(fleft)->u64);
+}
+
+LJFOLD(CONV KNUM IRCONV_INT_NUM)
+LJFOLDF(kfold_conv_knum_int_num)
+{
+  lua_Number n = knumleft;
+  int32_t k = lj_num2int(n);
+  if (irt_isguard(fins->t) && n != (lua_Number)k) {
+    /* We're about to create a guard which always fails, like CONV +1.5.
+    ** Some pathological loops cause this during LICM, e.g.:
+    **   local x,k,t = 0,1.5,{1,[1.5]=2}
+    **   for i=1,200 do x = x+ t[k]; k = k == 1 and 1.5 or 1 end
+    **   assert(x == 300)
+    */
+    return FAILFOLD;
+  }
+  return INTFOLD(k);
+}
+
+LJFOLD(CONV KNUM IRCONV_U32_NUM)
+LJFOLDF(kfold_conv_knum_u32_num)
+{
+#ifdef _MSC_VER
+  {  /* Workaround for MSVC bug. */
+    volatile uint32_t u = (uint32_t)knumleft;
+    return INTFOLD((int32_t)u);
+  }
+#else
+  return INTFOLD((int32_t)(uint32_t)knumleft);
+#endif
+}
+
+LJFOLD(CONV KNUM IRCONV_I64_NUM)
+LJFOLDF(kfold_conv_knum_i64_num)
+{
+  return INT64FOLD((uint64_t)(int64_t)knumleft);
+}
+
+LJFOLD(CONV KNUM IRCONV_U64_NUM)
+LJFOLDF(kfold_conv_knum_u64_num)
+{
+  return INT64FOLD(lj_num2u64(knumleft));
+}
+
+LJFOLD(TOSTR KNUM any)
+LJFOLDF(kfold_tostr_knum)
+{
+  return lj_ir_kstr(J, lj_strfmt_num(J->L, ir_knum(fleft)));
+}
+
+LJFOLD(TOSTR KINT any)
+LJFOLDF(kfold_tostr_kint)
+{
+  return lj_ir_kstr(J, fins->op2 == IRTOSTR_INT ?
+		       lj_strfmt_int(J->L, fleft->i) :
+		       lj_strfmt_char(J->L, fleft->i));
+}
+
+LJFOLD(STRTO KGC)
+LJFOLDF(kfold_strto)
+{
+  TValue n;
+  if (lj_strscan_num(ir_kstr(fleft), &n))
+    return lj_ir_knum(J, numV(&n));
+  return FAILFOLD;
+}
+
+/* -- Constant folding of equality checks --------------------------------- */
+
+/* Don't constant-fold away FLOAD checks against KNULL. */
+LJFOLD(EQ FLOAD KNULL)
+LJFOLD(NE FLOAD KNULL)
+LJFOLDX(lj_opt_cse)
+
+/* But fold all other KNULL compares, since only KNULL is equal to KNULL. */
+LJFOLD(EQ any KNULL)
+LJFOLD(NE any KNULL)
+LJFOLD(EQ KNULL any)
+LJFOLD(NE KNULL any)
+LJFOLD(EQ KINT KINT)  /* Constants are unique, so same refs <==> same value. */
+LJFOLD(NE KINT KINT)
+LJFOLD(EQ KINT64 KINT64)
+LJFOLD(NE KINT64 KINT64)
+LJFOLD(EQ KGC KGC)
+LJFOLD(NE KGC KGC)
+LJFOLDF(kfold_kref)
+{
+  return CONDFOLD((fins->op1 == fins->op2) ^ (fins->o == IR_NE));
+}
+
+/* -- Algebraic shortcuts ------------------------------------------------- */
+
+LJFOLD(FPMATH FPMATH IRFPM_FLOOR)
+LJFOLD(FPMATH FPMATH IRFPM_CEIL)
+LJFOLD(FPMATH FPMATH IRFPM_TRUNC)
+LJFOLDF(shortcut_round)
+{
+  IRFPMathOp op = (IRFPMathOp)fleft->op2;
+  if (op == IRFPM_FLOOR || op == IRFPM_CEIL || op == IRFPM_TRUNC)
+    return LEFTFOLD;  /* round(round_left(x)) = round_left(x) */
+  return NEXTFOLD;
+}
+
+LJFOLD(ABS ABS FLOAD)
+LJFOLDF(shortcut_left)
+{
+  return LEFTFOLD;  /* f(g(x)) ==> g(x) */
+}
+
+LJFOLD(ABS NEG FLOAD)
+LJFOLDF(shortcut_dropleft)
+{
+  PHIBARRIER(fleft);
+  fins->op1 = fleft->op1;  /* abs(neg(x)) ==> abs(x) */
+  return RETRYFOLD;
+}
+
+/* Note: no safe shortcuts with STRTO and TOSTR ("1e2" ==> +100 ==> "100"). */
+LJFOLD(NEG NEG any)
+LJFOLD(BNOT BNOT)
+LJFOLD(BSWAP BSWAP)
+LJFOLDF(shortcut_leftleft)
+{
+  PHIBARRIER(fleft);  /* See above. Fold would be ok, but not beneficial. */
+  return fleft->op1;  /* f(g(x)) ==> x */
+}
+
+/* -- FP algebraic simplifications ---------------------------------------- */
+
+/* FP arithmetic is tricky -- there's not much to simplify.
+** Please note the following common pitfalls before sending "improvements":
+**   x+0 ==> x  is INVALID for x=-0
+**   0-x ==> -x is INVALID for x=+0
+**   x*0 ==> 0  is INVALID for x=-0, x=+-Inf or x=NaN
+*/
+
+LJFOLD(ADD NEG any)
+LJFOLDF(simplify_numadd_negx)
+{
+  PHIBARRIER(fleft);
+  fins->o = IR_SUB;  /* (-a) + b ==> b - a */
+  fins->op1 = fins->op2;
+  fins->op2 = fleft->op1;
+  return RETRYFOLD;
+}
+
+LJFOLD(ADD any NEG)
+LJFOLDF(simplify_numadd_xneg)
+{
+  PHIBARRIER(fright);
+  fins->o = IR_SUB;  /* a + (-b) ==> a - b */
+  fins->op2 = fright->op1;
+  return RETRYFOLD;
+}
+
+LJFOLD(SUB any KNUM)
+LJFOLDF(simplify_numsub_k)
+{
+  if (ir_knum(fright)->u64 == 0)  /* x - (+0) ==> x */
+    return LEFTFOLD;
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB NEG KNUM)
+LJFOLDF(simplify_numsub_negk)
+{
+  PHIBARRIER(fleft);
+  fins->op2 = fleft->op1;  /* (-x) - k ==> (-k) - x */
+  fins->op1 = (IRRef1)lj_ir_knum(J, -knumright);
+  return RETRYFOLD;
+}
+
+LJFOLD(SUB any NEG)
+LJFOLDF(simplify_numsub_xneg)
+{
+  PHIBARRIER(fright);
+  fins->o = IR_ADD;  /* a - (-b) ==> a + b */
+  fins->op2 = fright->op1;
+  return RETRYFOLD;
+}
+
+LJFOLD(MUL any KNUM)
+LJFOLD(DIV any KNUM)
+LJFOLDF(simplify_nummuldiv_k)
+{
+  lua_Number n = knumright;
+  if (n == 1.0) {  /* x o 1 ==> x */
+    return LEFTFOLD;
+  } else if (n == -1.0) {  /* x o -1 ==> -x */
+    IRRef op1 = fins->op1;
+    fins->op2 = (IRRef1)lj_ir_ksimd(J, LJ_KSIMD_NEG);  /* Modifies fins. */
+    fins->op1 = op1;
+    fins->o = IR_NEG;
+    return RETRYFOLD;
+  } else if (fins->o == IR_MUL && n == 2.0) {  /* x * 2 ==> x + x */
+    fins->o = IR_ADD;
+    fins->op2 = fins->op1;
+    return RETRYFOLD;
+  } else if (fins->o == IR_DIV) {  /* x / 2^k ==> x * 2^-k */
+    uint64_t u = ir_knum(fright)->u64;
+    uint32_t ex = ((uint32_t)(u >> 52) & 0x7ff);
+    if ((u & U64x(000fffff,ffffffff)) == 0 && ex - 1 < 0x7fd) {
+      u = (u & ((uint64_t)1 << 63)) | ((uint64_t)(0x7fe - ex) << 52);
+      fins->o = IR_MUL;  /* Multiply by exact reciprocal. */
+      fins->op2 = lj_ir_knum_u64(J, u);
+      return RETRYFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(MUL NEG KNUM)
+LJFOLD(DIV NEG KNUM)
+LJFOLDF(simplify_nummuldiv_negk)
+{
+  PHIBARRIER(fleft);
+  fins->op1 = fleft->op1;  /* (-a) o k ==> a o (-k) */
+  fins->op2 = (IRRef1)lj_ir_knum(J, -knumright);
+  return RETRYFOLD;
+}
+
+LJFOLD(MUL NEG NEG)
+LJFOLD(DIV NEG NEG)
+LJFOLDF(simplify_nummuldiv_negneg)
+{
+  PHIBARRIER(fleft);
+  PHIBARRIER(fright);
+  fins->op1 = fleft->op1;  /* (-a) o (-b) ==> a o b */
+  fins->op2 = fright->op1;
+  return RETRYFOLD;
+}
+
+LJFOLD(POW any KNUM)
+LJFOLDF(simplify_numpow_k)
+{
+  if (knumright == 0.0)  /* x ^ 0 ==> 1 */
+    return lj_ir_knum_one(J);  /* Result must be a number, not an int. */
+  else if (knumright == 1.0)  /* x ^ 1 ==> x */
+    return LEFTFOLD;
+  else if (knumright == 2.0)  /* x ^ 2 ==> x * x */
+    return emitir(IRTN(IR_MUL), fins->op1, fins->op1);
+  else
+    return NEXTFOLD;
+}
+
+/* -- Simplify conversions ------------------------------------------------ */
+
+LJFOLD(CONV CONV IRCONV_NUM_INT)  /* _NUM */
+LJFOLDF(shortcut_conv_num_int)
+{
+  PHIBARRIER(fleft);
+  /* Only safe with a guarded conversion to int. */
+  if ((fleft->op2 & IRCONV_SRCMASK) == IRT_NUM && irt_isguard(fleft->t))
+    return fleft->op1;  /* f(g(x)) ==> x */
+  return NEXTFOLD;
+}
+
+LJFOLD(CONV CONV IRCONV_INT_NUM)  /* _INT */
+LJFOLD(CONV CONV IRCONV_U32_NUM)  /* _U32*/
+LJFOLDF(simplify_conv_int_num)
+{
+  /* Fold even across PHI to avoid expensive num->int conversions in loop. */
+  if ((fleft->op2 & IRCONV_SRCMASK) ==
+      ((fins->op2 & IRCONV_DSTMASK) >> IRCONV_DSH))
+    return fleft->op1;
+  return NEXTFOLD;
+}
+
+LJFOLD(CONV CONV IRCONV_I64_NUM)  /* _INT or _U32 */
+LJFOLD(CONV CONV IRCONV_U64_NUM)  /* _INT or _U32 */
+LJFOLDF(simplify_conv_i64_num)
+{
+  PHIBARRIER(fleft);
+  if ((fleft->op2 & IRCONV_SRCMASK) == IRT_INT) {
+    /* Reduce to a sign-extension. */
+    fins->op1 = fleft->op1;
+    fins->op2 = ((IRT_I64<<5)|IRT_INT|IRCONV_SEXT);
+    return RETRYFOLD;
+  } else if ((fleft->op2 & IRCONV_SRCMASK) == IRT_U32) {
+#if LJ_TARGET_X64
+    return fleft->op1;
+#else
+    /* Reduce to a zero-extension. */
+    fins->op1 = fleft->op1;
+    fins->op2 = (IRT_I64<<5)|IRT_U32;
+    return RETRYFOLD;
+#endif
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(CONV CONV IRCONV_INT_I64)  /* _INT or _U32 */
+LJFOLD(CONV CONV IRCONV_INT_U64)  /* _INT or _U32 */
+LJFOLD(CONV CONV IRCONV_U32_I64)  /* _INT or _U32 */
+LJFOLD(CONV CONV IRCONV_U32_U64)  /* _INT or _U32 */
+LJFOLDF(simplify_conv_int_i64)
+{
+  int src;
+  PHIBARRIER(fleft);
+  src = (fleft->op2 & IRCONV_SRCMASK);
+  if (src == IRT_INT || src == IRT_U32) {
+    if (src == ((fins->op2 & IRCONV_DSTMASK) >> IRCONV_DSH)) {
+      return fleft->op1;
+    } else {
+      fins->op2 = ((fins->op2 & IRCONV_DSTMASK) | src);
+      fins->op1 = fleft->op1;
+      return RETRYFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(CONV CONV IRCONV_FLOAT_NUM)  /* _FLOAT */
+LJFOLDF(simplify_conv_flt_num)
+{
+  PHIBARRIER(fleft);
+  if ((fleft->op2 & IRCONV_SRCMASK) == IRT_FLOAT)
+    return fleft->op1;
+  return NEXTFOLD;
+}
+
+/* Shortcut TOBIT + IRT_NUM <- IRT_INT/IRT_U32 conversion. */
+LJFOLD(TOBIT CONV KNUM)
+LJFOLDF(simplify_tobit_conv)
+{
+  /* Fold even across PHI to avoid expensive num->int conversions in loop. */
+  if ((fleft->op2 & IRCONV_SRCMASK) == IRT_INT) {
+    lj_assertJ(irt_isnum(fleft->t), "expected TOBIT number arg");
+    return fleft->op1;
+  } else if ((fleft->op2 & IRCONV_SRCMASK) == IRT_U32) {
+    lj_assertJ(irt_isnum(fleft->t), "expected TOBIT number arg");
+    fins->o = IR_CONV;
+    fins->op1 = fleft->op1;
+    fins->op2 = (IRT_INT<<5)|IRT_U32;
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+/* Shortcut floor/ceil/round + IRT_NUM <- IRT_INT/IRT_U32 conversion. */
+LJFOLD(FPMATH CONV IRFPM_FLOOR)
+LJFOLD(FPMATH CONV IRFPM_CEIL)
+LJFOLD(FPMATH CONV IRFPM_TRUNC)
+LJFOLDF(simplify_floor_conv)
+{
+  if ((fleft->op2 & IRCONV_SRCMASK) == IRT_INT ||
+      (fleft->op2 & IRCONV_SRCMASK) == IRT_U32)
+    return LEFTFOLD;
+  return NEXTFOLD;
+}
+
+/* Strength reduction of widening. */
+LJFOLD(CONV any IRCONV_I64_INT)
+LJFOLD(CONV any IRCONV_U64_INT)
+LJFOLDF(simplify_conv_sext)
+{
+  IRRef ref = fins->op1;
+  int64_t ofs = 0;
+  if (!(fins->op2 & IRCONV_SEXT))
+    return NEXTFOLD;
+  PHIBARRIER(fleft);
+  if (fleft->o == IR_XLOAD && (irt_isu8(fleft->t) || irt_isu16(fleft->t)))
+    goto ok_reduce;
+  if (fleft->o == IR_ADD && irref_isk(fleft->op2)) {
+    ofs = (int64_t)IR(fleft->op2)->i;
+    ref = fleft->op1;
+  }
+  /* Use scalar evolution analysis results to strength-reduce sign-extension. */
+  if (ref == J->scev.idx) {
+    IRRef lo = J->scev.dir ? J->scev.start : J->scev.stop;
+    lj_assertJ(irt_isint(J->scev.t), "only int SCEV supported");
+    if (lo && IR(lo)->o == IR_KINT && IR(lo)->i + ofs >= 0) {
+    ok_reduce:
+#if LJ_TARGET_X64
+      /* Eliminate widening. All 32 bit ops do an implicit zero-extension. */
+      return LEFTFOLD;
+#else
+      /* Reduce to a (cheaper) zero-extension. */
+      fins->op2 &= ~IRCONV_SEXT;
+      return RETRYFOLD;
+#endif
+    }
+  }
+  return NEXTFOLD;
+}
+
+/* Strength reduction of narrowing. */
+LJFOLD(CONV ADD IRCONV_INT_I64)
+LJFOLD(CONV SUB IRCONV_INT_I64)
+LJFOLD(CONV MUL IRCONV_INT_I64)
+LJFOLD(CONV ADD IRCONV_INT_U64)
+LJFOLD(CONV SUB IRCONV_INT_U64)
+LJFOLD(CONV MUL IRCONV_INT_U64)
+LJFOLD(CONV ADD IRCONV_U32_I64)
+LJFOLD(CONV SUB IRCONV_U32_I64)
+LJFOLD(CONV MUL IRCONV_U32_I64)
+LJFOLD(CONV ADD IRCONV_U32_U64)
+LJFOLD(CONV SUB IRCONV_U32_U64)
+LJFOLD(CONV MUL IRCONV_U32_U64)
+LJFOLDF(simplify_conv_narrow)
+{
+#if LJ_64
+  UNUSED(J);
+  return NEXTFOLD;
+#else
+  IROp op = (IROp)fleft->o;
+  IRType t = irt_type(fins->t);
+  IRRef op1 = fleft->op1, op2 = fleft->op2, mode = fins->op2;
+  PHIBARRIER(fleft);
+  op1 = emitir(IRT(IR_CONV, t), op1, mode);
+  op2 = emitir(IRT(IR_CONV, t), op2, mode);
+  fins->ot = IRT(op, t);
+  fins->op1 = op1;
+  fins->op2 = op2;
+  return RETRYFOLD;
+#endif
+}
+
+/* Special CSE rule for CONV. */
+LJFOLD(CONV any any)
+LJFOLDF(cse_conv)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_CSE)) {
+    IRRef op1 = fins->op1, op2 = (fins->op2 & IRCONV_MODEMASK);
+    uint8_t guard = irt_isguard(fins->t);
+    IRRef ref = J->chain[IR_CONV];
+    while (ref > op1) {
+      IRIns *ir = IR(ref);
+      /* Commoning with stronger checks is ok. */
+      if (ir->op1 == op1 && (ir->op2 & IRCONV_MODEMASK) == op2 &&
+	  irt_isguard(ir->t) >= guard)
+	return ref;
+      ref = ir->prev;
+    }
+  }
+  return EMITFOLD;  /* No fallthrough to regular CSE. */
+}
+
+/* FP conversion narrowing. */
+LJFOLD(TOBIT ADD KNUM)
+LJFOLD(TOBIT SUB KNUM)
+LJFOLD(CONV ADD IRCONV_INT_NUM)
+LJFOLD(CONV SUB IRCONV_INT_NUM)
+LJFOLD(CONV ADD IRCONV_I64_NUM)
+LJFOLD(CONV SUB IRCONV_I64_NUM)
+LJFOLDF(narrow_convert)
+{
+  PHIBARRIER(fleft);
+  /* Narrowing ignores PHIs and repeating it inside the loop is not useful. */
+  if (J->chain[IR_LOOP])
+    return NEXTFOLD;
+  lj_assertJ(fins->o != IR_CONV || (fins->op2&IRCONV_CONVMASK) != IRCONV_TOBIT,
+	     "unexpected CONV TOBIT");
+  return lj_opt_narrow_convert(J);
+}
+
+/* -- Integer algebraic simplifications ----------------------------------- */
+
+LJFOLD(ADD any KINT)
+LJFOLD(ADDOV any KINT)
+LJFOLD(SUBOV any KINT)
+LJFOLDF(simplify_intadd_k)
+{
+  if (fright->i == 0)  /* i o 0 ==> i */
+    return LEFTFOLD;
+  return NEXTFOLD;
+}
+
+LJFOLD(MULOV any KINT)
+LJFOLDF(simplify_intmul_k)
+{
+  if (fright->i == 0)  /* i * 0 ==> 0 */
+    return RIGHTFOLD;
+  if (fright->i == 1)  /* i * 1 ==> i */
+    return LEFTFOLD;
+  if (fright->i == 2) {  /* i * 2 ==> i + i */
+    fins->o = IR_ADDOV;
+    fins->op2 = fins->op1;
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB any KINT)
+LJFOLDF(simplify_intsub_k)
+{
+  if (fright->i == 0)  /* i - 0 ==> i */
+    return LEFTFOLD;
+  fins->o = IR_ADD;  /* i - k ==> i + (-k) */
+  fins->op2 = (IRRef1)lj_ir_kint(J, -fright->i);  /* Overflow for -2^31 ok. */
+  return RETRYFOLD;
+}
+
+LJFOLD(SUB KINT any)
+LJFOLD(SUB KINT64 any)
+LJFOLDF(simplify_intsub_kleft)
+{
+  if (fleft->o == IR_KINT ? (fleft->i == 0) : (ir_kint64(fleft)->u64 == 0)) {
+    fins->o = IR_NEG;  /* 0 - i ==> -i */
+    fins->op1 = fins->op2;
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(ADD any KINT64)
+LJFOLDF(simplify_intadd_k64)
+{
+  if (ir_kint64(fright)->u64 == 0)  /* i + 0 ==> i */
+    return LEFTFOLD;
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB any KINT64)
+LJFOLDF(simplify_intsub_k64)
+{
+  uint64_t k = ir_kint64(fright)->u64;
+  if (k == 0)  /* i - 0 ==> i */
+    return LEFTFOLD;
+  fins->o = IR_ADD;  /* i - k ==> i + (-k) */
+  fins->op2 = (IRRef1)lj_ir_kint64(J, (uint64_t)-(int64_t)k);
+  return RETRYFOLD;
+}
+
+static TRef simplify_intmul_k(jit_State *J, int32_t k)
+{
+  /* Note: many more simplifications are possible, e.g. 2^k1 +- 2^k2.
+  ** But this is mainly intended for simple address arithmetic.
+  ** Also it's easier for the backend to optimize the original multiplies.
+  */
+  if (k == 0) {  /* i * 0 ==> 0 */
+    return RIGHTFOLD;
+  } else if (k == 1) {  /* i * 1 ==> i */
+    return LEFTFOLD;
+  } else if ((k & (k-1)) == 0) {  /* i * 2^k ==> i << k */
+    fins->o = IR_BSHL;
+    fins->op2 = lj_ir_kint(J, lj_fls((uint32_t)k));
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(MUL any KINT)
+LJFOLDF(simplify_intmul_k32)
+{
+  if (fright->i >= 0)
+    return simplify_intmul_k(J, fright->i);
+  return NEXTFOLD;
+}
+
+LJFOLD(MUL any KINT64)
+LJFOLDF(simplify_intmul_k64)
+{
+#if LJ_HASFFI
+  if (ir_kint64(fright)->u64 < 0x80000000u)
+    return simplify_intmul_k(J, (int32_t)ir_kint64(fright)->u64);
+  return NEXTFOLD;
+#else
+  UNUSED(J); lj_assertJ(0, "FFI IR op without FFI"); return FAILFOLD;
+#endif
+}
+
+LJFOLD(MOD any KINT)
+LJFOLDF(simplify_intmod_k)
+{
+  int32_t k = fright->i;
+  lj_assertJ(k != 0, "integer mod 0");
+  if (k > 0 && (k & (k-1)) == 0) {  /* i % (2^k) ==> i & (2^k-1) */
+    fins->o = IR_BAND;
+    fins->op2 = lj_ir_kint(J, k-1);
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(MOD KINT any)
+LJFOLDF(simplify_intmod_kleft)
+{
+  if (fleft->i == 0)
+    return INTFOLD(0);
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB any any)
+LJFOLD(SUBOV any any)
+LJFOLDF(simplify_intsub)
+{
+  if (fins->op1 == fins->op2 && !irt_isnum(fins->t))  /* i - i ==> 0 */
+    return irt_is64(fins->t) ? INT64FOLD(0) : INTFOLD(0);
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB ADD any)
+LJFOLDF(simplify_intsubadd_leftcancel)
+{
+  if (!irt_isnum(fins->t)) {
+    PHIBARRIER(fleft);
+    if (fins->op2 == fleft->op1)  /* (i + j) - i ==> j */
+      return fleft->op2;
+    if (fins->op2 == fleft->op2)  /* (i + j) - j ==> i */
+      return fleft->op1;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB SUB any)
+LJFOLDF(simplify_intsubsub_leftcancel)
+{
+  if (!irt_isnum(fins->t)) {
+    PHIBARRIER(fleft);
+    if (fins->op2 == fleft->op1) {  /* (i - j) - i ==> 0 - j */
+      fins->op1 = (IRRef1)lj_ir_kint(J, 0);
+      fins->op2 = fleft->op2;
+      return RETRYFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB any SUB)
+LJFOLDF(simplify_intsubsub_rightcancel)
+{
+  if (!irt_isnum(fins->t)) {
+    PHIBARRIER(fright);
+    if (fins->op1 == fright->op1)  /* i - (i - j) ==> j */
+      return fright->op2;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB any ADD)
+LJFOLDF(simplify_intsubadd_rightcancel)
+{
+  if (!irt_isnum(fins->t)) {
+    PHIBARRIER(fright);
+    if (fins->op1 == fright->op1) {  /* i - (i + j) ==> 0 - j */
+      fins->op2 = fright->op2;
+      fins->op1 = (IRRef1)lj_ir_kint(J, 0);
+      return RETRYFOLD;
+    }
+    if (fins->op1 == fright->op2) {  /* i - (j + i) ==> 0 - j */
+      fins->op2 = fright->op1;
+      fins->op1 = (IRRef1)lj_ir_kint(J, 0);
+      return RETRYFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(SUB ADD ADD)
+LJFOLDF(simplify_intsubaddadd_cancel)
+{
+  if (!irt_isnum(fins->t)) {
+    PHIBARRIER(fleft);
+    PHIBARRIER(fright);
+    if (fleft->op1 == fright->op1) {  /* (i + j1) - (i + j2) ==> j1 - j2 */
+      fins->op1 = fleft->op2;
+      fins->op2 = fright->op2;
+      return RETRYFOLD;
+    }
+    if (fleft->op1 == fright->op2) {  /* (i + j1) - (j2 + i) ==> j1 - j2 */
+      fins->op1 = fleft->op2;
+      fins->op2 = fright->op1;
+      return RETRYFOLD;
+    }
+    if (fleft->op2 == fright->op1) {  /* (j1 + i) - (i + j2) ==> j1 - j2 */
+      fins->op1 = fleft->op1;
+      fins->op2 = fright->op2;
+      return RETRYFOLD;
+    }
+    if (fleft->op2 == fright->op2) {  /* (j1 + i) - (j2 + i) ==> j1 - j2 */
+      fins->op1 = fleft->op1;
+      fins->op2 = fright->op1;
+      return RETRYFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(BAND any KINT)
+LJFOLD(BAND any KINT64)
+LJFOLDF(simplify_band_k)
+{
+  int64_t k = fright->o == IR_KINT ? (int64_t)fright->i :
+				     (int64_t)ir_k64(fright)->u64;
+  if (k == 0)  /* i & 0 ==> 0 */
+    return RIGHTFOLD;
+  if (k == -1)  /* i & -1 ==> i */
+    return LEFTFOLD;
+  return NEXTFOLD;
+}
+
+LJFOLD(BOR any KINT)
+LJFOLD(BOR any KINT64)
+LJFOLDF(simplify_bor_k)
+{
+  int64_t k = fright->o == IR_KINT ? (int64_t)fright->i :
+				     (int64_t)ir_k64(fright)->u64;
+  if (k == 0)  /* i | 0 ==> i */
+    return LEFTFOLD;
+  if (k == -1)  /* i | -1 ==> -1 */
+    return RIGHTFOLD;
+  return NEXTFOLD;
+}
+
+LJFOLD(BXOR any KINT)
+LJFOLD(BXOR any KINT64)
+LJFOLDF(simplify_bxor_k)
+{
+  int64_t k = fright->o == IR_KINT ? (int64_t)fright->i :
+				     (int64_t)ir_k64(fright)->u64;
+  if (k == 0)  /* i xor 0 ==> i */
+    return LEFTFOLD;
+  if (k == -1) {  /* i xor -1 ==> ~i */
+    fins->o = IR_BNOT;
+    fins->op2 = 0;
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(BSHL any KINT)
+LJFOLD(BSHR any KINT)
+LJFOLD(BSAR any KINT)
+LJFOLD(BROL any KINT)
+LJFOLD(BROR any KINT)
+LJFOLDF(simplify_shift_ik)
+{
+  int32_t mask = irt_is64(fins->t) ? 63 : 31;
+  int32_t k = (fright->i & mask);
+  if (k == 0)  /* i o 0 ==> i */
+    return LEFTFOLD;
+  if (k == 1 && fins->o == IR_BSHL) {  /* i << 1 ==> i + i */
+    fins->o = IR_ADD;
+    fins->op2 = fins->op1;
+    return RETRYFOLD;
+  }
+  if (k != fright->i) {  /* i o k ==> i o (k & mask) */
+    fins->op2 = (IRRef1)lj_ir_kint(J, k);
+    return RETRYFOLD;
+  }
+#ifndef LJ_TARGET_UNIFYROT
+  if (fins->o == IR_BROR) {  /* bror(i, k) ==> brol(i, (-k)&mask) */
+    fins->o = IR_BROL;
+    fins->op2 = (IRRef1)lj_ir_kint(J, (-k)&mask);
+    return RETRYFOLD;
+  }
+#endif
+  return NEXTFOLD;
+}
+
+LJFOLD(BSHL any BAND)
+LJFOLD(BSHR any BAND)
+LJFOLD(BSAR any BAND)
+LJFOLD(BROL any BAND)
+LJFOLD(BROR any BAND)
+LJFOLDF(simplify_shift_andk)
+{
+  IRIns *irk = IR(fright->op2);
+  PHIBARRIER(fright);
+  if ((fins->o < IR_BROL ? LJ_TARGET_MASKSHIFT : LJ_TARGET_MASKROT) &&
+      irk->o == IR_KINT) {  /* i o (j & mask) ==> i o j */
+    int32_t mask = irt_is64(fins->t) ? 63 : 31;
+    int32_t k = irk->i & mask;
+    if (k == mask) {
+      fins->op2 = fright->op1;
+      return RETRYFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(BSHL KINT any)
+LJFOLD(BSHR KINT any)
+LJFOLD(BSHL KINT64 any)
+LJFOLD(BSHR KINT64 any)
+LJFOLDF(simplify_shift1_ki)
+{
+  int64_t k = fleft->o == IR_KINT ? (int64_t)fleft->i :
+				    (int64_t)ir_k64(fleft)->u64;
+  if (k == 0)  /* 0 o i ==> 0 */
+    return LEFTFOLD;
+  return NEXTFOLD;
+}
+
+LJFOLD(BSAR KINT any)
+LJFOLD(BROL KINT any)
+LJFOLD(BROR KINT any)
+LJFOLD(BSAR KINT64 any)
+LJFOLD(BROL KINT64 any)
+LJFOLD(BROR KINT64 any)
+LJFOLDF(simplify_shift2_ki)
+{
+  int64_t k = fleft->o == IR_KINT ? (int64_t)fleft->i :
+				    (int64_t)ir_k64(fleft)->u64;
+  if (k == 0 || k == -1)  /* 0 o i ==> 0; -1 o i ==> -1 */
+    return LEFTFOLD;
+  return NEXTFOLD;
+}
+
+LJFOLD(BSHL BAND KINT)
+LJFOLD(BSHR BAND KINT)
+LJFOLD(BROL BAND KINT)
+LJFOLD(BROR BAND KINT)
+LJFOLDF(simplify_shiftk_andk)
+{
+  IRIns *irk = IR(fleft->op2);
+  PHIBARRIER(fleft);
+  if (irk->o == IR_KINT) {  /* (i & k1) o k2 ==> (i o k2) & (k1 o k2) */
+    int32_t k = kfold_intop(irk->i, fright->i, (IROp)fins->o);
+    fins->op1 = fleft->op1;
+    fins->op1 = (IRRef1)lj_opt_fold(J);
+    fins->op2 = (IRRef1)lj_ir_kint(J, k);
+    fins->ot = IRTI(IR_BAND);
+    return RETRYFOLD;
+  } else if (irk->o == IR_KINT64) {
+    uint64_t k = kfold_int64arith(J, ir_k64(irk)->u64, fright->i,
+				  (IROp)fins->o);
+    IROpT ot = fleft->ot;
+    fins->op1 = fleft->op1;
+    fins->op1 = (IRRef1)lj_opt_fold(J);
+    fins->op2 = (IRRef1)lj_ir_kint64(J, k);
+    fins->ot = ot;
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(BAND BSHL KINT)
+LJFOLD(BAND BSHR KINT)
+LJFOLDF(simplify_andk_shiftk)
+{
+  IRIns *irk = IR(fleft->op2);
+  if (irk->o == IR_KINT &&
+      kfold_intop(-1, irk->i, (IROp)fleft->o) == fright->i)
+    return LEFTFOLD;  /* (i o k1) & k2 ==> i, if (-1 o k1) == k2 */
+  return NEXTFOLD;
+}
+
+LJFOLD(BAND BOR KINT)
+LJFOLD(BOR BAND KINT)
+LJFOLDF(simplify_andor_k)
+{
+  IRIns *irk = IR(fleft->op2);
+  PHIBARRIER(fleft);
+  if (irk->o == IR_KINT) {
+    int32_t k = kfold_intop(irk->i, fright->i, (IROp)fins->o);
+    /* (i | k1) & k2 ==> i & k2, if (k1 & k2) == 0. */
+    /* (i & k1) | k2 ==> i | k2, if (k1 | k2) == -1. */
+    if (k == (fins->o == IR_BAND ? 0 : -1)) {
+      fins->op1 = fleft->op1;
+      return RETRYFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(BAND BOR KINT64)
+LJFOLD(BOR BAND KINT64)
+LJFOLDF(simplify_andor_k64)
+{
+#if LJ_HASFFI
+  IRIns *irk = IR(fleft->op2);
+  PHIBARRIER(fleft);
+  if (irk->o == IR_KINT64) {
+    uint64_t k = kfold_int64arith(J, ir_k64(irk)->u64, ir_k64(fright)->u64,
+				  (IROp)fins->o);
+    /* (i | k1) & k2 ==> i & k2, if (k1 & k2) == 0. */
+    /* (i & k1) | k2 ==> i | k2, if (k1 | k2) == -1. */
+    if (k == (fins->o == IR_BAND ? (uint64_t)0 : ~(uint64_t)0)) {
+      fins->op1 = fleft->op1;
+      return RETRYFOLD;
+    }
+  }
+  return NEXTFOLD;
+#else
+  UNUSED(J); lj_assertJ(0, "FFI IR op without FFI"); return FAILFOLD;
+#endif
+}
+
+/* -- Reassociation ------------------------------------------------------- */
+
+LJFOLD(ADD ADD KINT)
+LJFOLD(MUL MUL KINT)
+LJFOLD(BAND BAND KINT)
+LJFOLD(BOR BOR KINT)
+LJFOLD(BXOR BXOR KINT)
+LJFOLDF(reassoc_intarith_k)
+{
+  IRIns *irk = IR(fleft->op2);
+  if (irk->o == IR_KINT) {
+    int32_t k = kfold_intop(irk->i, fright->i, (IROp)fins->o);
+    if (k == irk->i)  /* (i o k1) o k2 ==> i o k1, if (k1 o k2) == k1. */
+      return LEFTFOLD;
+    PHIBARRIER(fleft);
+    fins->op1 = fleft->op1;
+    fins->op2 = (IRRef1)lj_ir_kint(J, k);
+    return RETRYFOLD;  /* (i o k1) o k2 ==> i o (k1 o k2) */
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(ADD ADD KINT64)
+LJFOLD(MUL MUL KINT64)
+LJFOLD(BAND BAND KINT64)
+LJFOLD(BOR BOR KINT64)
+LJFOLD(BXOR BXOR KINT64)
+LJFOLDF(reassoc_intarith_k64)
+{
+#if LJ_HASFFI
+  IRIns *irk = IR(fleft->op2);
+  if (irk->o == IR_KINT64) {
+    uint64_t k = kfold_int64arith(J, ir_k64(irk)->u64, ir_k64(fright)->u64,
+				  (IROp)fins->o);
+    PHIBARRIER(fleft);
+    fins->op1 = fleft->op1;
+    fins->op2 = (IRRef1)lj_ir_kint64(J, k);
+    return RETRYFOLD;  /* (i o k1) o k2 ==> i o (k1 o k2) */
+  }
+  return NEXTFOLD;
+#else
+  UNUSED(J); lj_assertJ(0, "FFI IR op without FFI"); return FAILFOLD;
+#endif
+}
+
+LJFOLD(BAND BAND any)
+LJFOLD(BOR BOR any)
+LJFOLDF(reassoc_dup)
+{
+  if (fins->op2 == fleft->op1 || fins->op2 == fleft->op2)
+    return LEFTFOLD;  /* (a o b) o a ==> a o b; (a o b) o b ==> a o b */
+  return NEXTFOLD;
+}
+
+LJFOLD(MIN MIN any)
+LJFOLD(MAX MAX any)
+LJFOLDF(reassoc_dup_minmax)
+{
+  if (fins->op2 == fleft->op2)
+    return LEFTFOLD;  /* (a o b) o b ==> a o b */
+  return NEXTFOLD;
+}
+
+LJFOLD(BXOR BXOR any)
+LJFOLDF(reassoc_bxor)
+{
+  PHIBARRIER(fleft);
+  if (fins->op2 == fleft->op1)  /* (a xor b) xor a ==> b */
+    return fleft->op2;
+  if (fins->op2 == fleft->op2)  /* (a xor b) xor b ==> a */
+    return fleft->op1;
+  return NEXTFOLD;
+}
+
+LJFOLD(BSHL BSHL KINT)
+LJFOLD(BSHR BSHR KINT)
+LJFOLD(BSAR BSAR KINT)
+LJFOLD(BROL BROL KINT)
+LJFOLD(BROR BROR KINT)
+LJFOLDF(reassoc_shift)
+{
+  IRIns *irk = IR(fleft->op2);
+  PHIBARRIER(fleft);  /* The (shift any KINT) rule covers k2 == 0 and more. */
+  if (irk->o == IR_KINT) {  /* (i o k1) o k2 ==> i o (k1 + k2) */
+    int32_t mask = irt_is64(fins->t) ? 63 : 31;
+    int32_t k = (irk->i & mask) + (fright->i & mask);
+    if (k > mask) {  /* Combined shift too wide? */
+      if (fins->o == IR_BSHL || fins->o == IR_BSHR)
+	return mask == 31 ? INTFOLD(0) : INT64FOLD(0);
+      else if (fins->o == IR_BSAR)
+	k = mask;
+      else
+	k &= mask;
+    }
+    fins->op1 = fleft->op1;
+    fins->op2 = (IRRef1)lj_ir_kint(J, k);
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(MIN MIN KINT)
+LJFOLD(MAX MAX KINT)
+LJFOLDF(reassoc_minmax_k)
+{
+  IRIns *irk = IR(fleft->op2);
+  if (irk->o == IR_KINT) {
+    int32_t a = irk->i;
+    int32_t y = kfold_intop(a, fright->i, fins->o);
+    if (a == y)  /* (x o k1) o k2 ==> x o k1, if (k1 o k2) == k1. */
+      return LEFTFOLD;
+    PHIBARRIER(fleft);
+    fins->op1 = fleft->op1;
+    fins->op2 = (IRRef1)lj_ir_kint(J, y);
+    return RETRYFOLD;  /* (x o k1) o k2 ==> x o (k1 o k2) */
+  }
+  return NEXTFOLD;
+}
+
+/* -- Array bounds check elimination -------------------------------------- */
+
+/* Eliminate ABC across PHIs to handle t[i-1] forwarding case.
+** ABC(asize, (i+k)+(-k)) ==> ABC(asize, i), but only if it already exists.
+** Could be generalized to (i+k1)+k2 ==> i+(k1+k2), but needs better disambig.
+*/
+LJFOLD(ABC any ADD)
+LJFOLDF(abc_fwd)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_ABC)) {
+    if (irref_isk(fright->op2)) {
+      IRIns *add2 = IR(fright->op1);
+      if (add2->o == IR_ADD && irref_isk(add2->op2) &&
+	  IR(fright->op2)->i == -IR(add2->op2)->i) {
+	IRRef ref = J->chain[IR_ABC];
+	IRRef lim = add2->op1;
+	if (fins->op1 > lim) lim = fins->op1;
+	while (ref > lim) {
+	  IRIns *ir = IR(ref);
+	  if (ir->op1 == fins->op1 && ir->op2 == add2->op1)
+	    return DROPFOLD;
+	  ref = ir->prev;
+	}
+      }
+    }
+  }
+  return NEXTFOLD;
+}
+
+/* Eliminate ABC for constants.
+** ABC(asize, k1), ABC(asize k2) ==> ABC(asize, max(k1, k2))
+** Drop second ABC if k2 is lower. Otherwise patch first ABC with k2.
+*/
+LJFOLD(ABC any KINT)
+LJFOLDF(abc_k)
+{
+  PHIBARRIER(fleft);
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_ABC)) {
+    IRRef ref = J->chain[IR_ABC];
+    IRRef asize = fins->op1;
+    while (ref > asize) {
+      IRIns *ir = IR(ref);
+      if (ir->op1 == asize && irref_isk(ir->op2)) {
+	uint32_t k = (uint32_t)IR(ir->op2)->i;
+	if ((uint32_t)fright->i > k)
+	  ir->op2 = fins->op2;
+	return DROPFOLD;
+      }
+      ref = ir->prev;
+    }
+    return EMITFOLD;  /* Already performed CSE. */
+  }
+  return NEXTFOLD;
+}
+
+/* Eliminate invariant ABC inside loop. */
+LJFOLD(ABC any any)
+LJFOLDF(abc_invar)
+{
+  /* Invariant ABC marked as PTR. Drop if op1 is invariant, too. */
+  if (!irt_isint(fins->t) && fins->op1 < J->chain[IR_LOOP] &&
+      !irt_isphi(IR(fins->op1)->t))
+    return DROPFOLD;
+  return NEXTFOLD;
+}
+
+/* -- Commutativity ------------------------------------------------------- */
+
+/* The refs of commutative ops are canonicalized. Lower refs go to the right.
+** Rationale behind this:
+** - It (also) moves constants to the right.
+** - It reduces the number of FOLD rules (e.g. (BOR any KINT) suffices).
+** - It helps CSE to find more matches.
+** - The assembler generates better code with constants at the right.
+*/
+
+LJFOLD(ADD any any)
+LJFOLD(MUL any any)
+LJFOLD(ADDOV any any)
+LJFOLD(MULOV any any)
+LJFOLDF(comm_swap)
+{
+  if (fins->op1 < fins->op2) {  /* Move lower ref to the right. */
+    IRRef1 tmp = fins->op1;
+    fins->op1 = fins->op2;
+    fins->op2 = tmp;
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(EQ any any)
+LJFOLD(NE any any)
+LJFOLDF(comm_equal)
+{
+  /* For non-numbers only: x == x ==> drop; x ~= x ==> fail */
+  if (fins->op1 == fins->op2 && !irt_isnum(fins->t))
+    return CONDFOLD(fins->o == IR_EQ);
+  return fold_comm_swap(J);
+}
+
+LJFOLD(LT any any)
+LJFOLD(GE any any)
+LJFOLD(LE any any)
+LJFOLD(GT any any)
+LJFOLD(ULT any any)
+LJFOLD(UGE any any)
+LJFOLD(ULE any any)
+LJFOLD(UGT any any)
+LJFOLDF(comm_comp)
+{
+  /* For non-numbers only: x <=> x ==> drop; x <> x ==> fail */
+  if (fins->op1 == fins->op2 && !irt_isnum(fins->t))
+    return CONDFOLD((fins->o ^ (fins->o >> 1)) & 1);
+  if (fins->op1 < fins->op2) {  /* Move lower ref to the right. */
+    IRRef1 tmp = fins->op1;
+    fins->op1 = fins->op2;
+    fins->op2 = tmp;
+    fins->o ^= 3; /* GT <-> LT, GE <-> LE, does not affect U */
+    return RETRYFOLD;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(BAND any any)
+LJFOLD(BOR any any)
+LJFOLDF(comm_dup)
+{
+  if (fins->op1 == fins->op2)  /* x o x ==> x */
+    return LEFTFOLD;
+  return fold_comm_swap(J);
+}
+
+LJFOLD(MIN any any)
+LJFOLD(MAX any any)
+LJFOLDF(comm_dup_minmax)
+{
+  if (fins->op1 == fins->op2)  /* x o x ==> x */
+    return LEFTFOLD;
+  return NEXTFOLD;
+}
+
+LJFOLD(BXOR any any)
+LJFOLDF(comm_bxor)
+{
+  if (fins->op1 == fins->op2)  /* i xor i ==> 0 */
+    return irt_is64(fins->t) ? INT64FOLD(0) : INTFOLD(0);
+  return fold_comm_swap(J);
+}
+
+/* -- Simplification of compound expressions ------------------------------ */
+
+static TRef kfold_xload(jit_State *J, IRIns *ir, const void *p)
+{
+  int32_t k;
+  switch (irt_type(ir->t)) {
+  case IRT_NUM: return lj_ir_knum_u64(J, *(uint64_t *)p);
+  case IRT_I8: k = (int32_t)*(int8_t *)p; break;
+  case IRT_U8: k = (int32_t)*(uint8_t *)p; break;
+  case IRT_I16: k = (int32_t)(int16_t)lj_getu16(p); break;
+  case IRT_U16: k = (int32_t)(uint16_t)lj_getu16(p); break;
+  case IRT_INT: case IRT_U32: k = (int32_t)lj_getu32(p); break;
+  case IRT_I64: case IRT_U64: return lj_ir_kint64(J, *(uint64_t *)p);
+  default: return 0;
+  }
+  return lj_ir_kint(J, k);
+}
+
+/* Turn: string.sub(str, a, b) == kstr
+** into: string.byte(str, a) == string.byte(kstr, 1) etc.
+** Note: this creates unaligned XLOADs on x86/x64.
+*/
+LJFOLD(EQ SNEW KGC)
+LJFOLD(NE SNEW KGC)
+LJFOLDF(merge_eqne_snew_kgc)
+{
+  GCstr *kstr = ir_kstr(fright);
+  int32_t len = (int32_t)kstr->len;
+  lj_assertJ(irt_isstr(fins->t), "bad equality IR type");
+
+#if LJ_TARGET_UNALIGNED
+#define FOLD_SNEW_MAX_LEN	4  /* Handle string lengths 0, 1, 2, 3, 4. */
+#define FOLD_SNEW_TYPE8		IRT_I8	/* Creates shorter immediates. */
+#else
+#define FOLD_SNEW_MAX_LEN	1  /* Handle string lengths 0 or 1. */
+#define FOLD_SNEW_TYPE8		IRT_U8  /* Prefer unsigned loads. */
+#endif
+
+  PHIBARRIER(fleft);
+  if (len <= FOLD_SNEW_MAX_LEN) {
+    IROp op = (IROp)fins->o;
+    IRRef strref = fleft->op1;
+    if (IR(strref)->o != IR_STRREF)
+      return NEXTFOLD;
+    if (op == IR_EQ) {
+      emitir(IRTGI(IR_EQ), fleft->op2, lj_ir_kint(J, len));
+      /* Caveat: fins/fleft/fright is no longer valid after emitir. */
+    } else {
+      /* NE is not expanded since this would need an OR of two conds. */
+      if (!irref_isk(fleft->op2))  /* Only handle the constant length case. */
+	return NEXTFOLD;
+      if (IR(fleft->op2)->i != len)
+	return DROPFOLD;
+    }
+    if (len > 0) {
+      /* A 4 byte load for length 3 is ok -- all strings have an extra NUL. */
+      uint16_t ot = (uint16_t)(len == 1 ? IRT(IR_XLOAD, FOLD_SNEW_TYPE8) :
+			       len == 2 ? IRT(IR_XLOAD, IRT_U16) :
+			       IRTI(IR_XLOAD));
+      TRef tmp = emitir(ot, strref,
+			IRXLOAD_READONLY | (len > 1 ? IRXLOAD_UNALIGNED : 0));
+      TRef val = kfold_xload(J, IR(tref_ref(tmp)), strdata(kstr));
+      if (len == 3)
+	tmp = emitir(IRTI(IR_BAND), tmp,
+		     lj_ir_kint(J, LJ_ENDIAN_SELECT(0x00ffffff, 0xffffff00)));
+      fins->op1 = (IRRef1)tmp;
+      fins->op2 = (IRRef1)val;
+      fins->ot = (IROpT)IRTGI(op);
+      return RETRYFOLD;
+    } else {
+      return DROPFOLD;
+    }
+  }
+  return NEXTFOLD;
+}
+
+/* -- Loads --------------------------------------------------------------- */
+
+/* Loads cannot be folded or passed on to CSE in general.
+** Alias analysis is needed to check for forwarding opportunities.
+**
+** Caveat: *all* loads must be listed here or they end up at CSE!
+*/
+
+LJFOLD(ALOAD any)
+LJFOLDX(lj_opt_fwd_aload)
+
+/* From HREF fwd (see below). Must eliminate, not supported by fwd/backend. */
+LJFOLD(HLOAD KKPTR)
+LJFOLDF(kfold_hload_kkptr)
+{
+  UNUSED(J);
+  lj_assertJ(ir_kptr(fleft) == niltvg(J2G(J)), "expected niltv");
+  return TREF_NIL;
+}
+
+LJFOLD(HLOAD any)
+LJFOLDX(lj_opt_fwd_hload)
+
+LJFOLD(ULOAD any)
+LJFOLDX(lj_opt_fwd_uload)
+
+LJFOLD(ALEN any any)
+LJFOLDX(lj_opt_fwd_alen)
+
+/* Upvalue refs are really loads, but there are no corresponding stores.
+** So CSE is ok for them, except for UREFO across a GC step (see below).
+** If the referenced function is const, its upvalue addresses are const, too.
+** This can be used to improve CSE by looking for the same address,
+** even if the upvalues originate from a different function.
+*/
+LJFOLD(UREFO KGC any)
+LJFOLD(UREFC KGC any)
+LJFOLDF(cse_uref)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_CSE)) {
+    IRRef ref = J->chain[fins->o];
+    GCfunc *fn = ir_kfunc(fleft);
+    GCupval *uv = gco2uv(gcref(fn->l.uvptr[(fins->op2 >> 8)]));
+    while (ref > 0) {
+      IRIns *ir = IR(ref);
+      if (irref_isk(ir->op1)) {
+	GCfunc *fn2 = ir_kfunc(IR(ir->op1));
+	if (gco2uv(gcref(fn2->l.uvptr[(ir->op2 >> 8)])) == uv) {
+	  if (fins->o == IR_UREFO && gcstep_barrier(J, ref))
+	    break;
+	  return ref;
+	}
+      }
+      ref = ir->prev;
+    }
+  }
+  return EMITFOLD;
+}
+
+LJFOLD(HREFK any any)
+LJFOLDX(lj_opt_fwd_hrefk)
+
+LJFOLD(HREF TNEW any)
+LJFOLDF(fwd_href_tnew)
+{
+  if (lj_opt_fwd_href_nokey(J))
+    return lj_ir_kkptr(J, niltvg(J2G(J)));
+  return NEXTFOLD;
+}
+
+LJFOLD(HREF TDUP KPRI)
+LJFOLD(HREF TDUP KGC)
+LJFOLD(HREF TDUP KNUM)
+LJFOLDF(fwd_href_tdup)
+{
+  TValue keyv;
+  lj_ir_kvalue(J->L, &keyv, fright);
+  if (lj_tab_get(J->L, ir_ktab(IR(fleft->op1)), &keyv) == niltvg(J2G(J)) &&
+      lj_opt_fwd_href_nokey(J))
+    return lj_ir_kkptr(J, niltvg(J2G(J)));
+  return NEXTFOLD;
+}
+
+/* We can safely FOLD/CSE array/hash refs and field loads, since there
+** are no corresponding stores. But we need to check for any NEWREF with
+** an aliased table, as it may invalidate all of the pointers and fields.
+** Only HREF needs the NEWREF check -- AREF and HREFK already depend on
+** FLOADs. And NEWREF itself is treated like a store (see below).
+** LREF is constant (per trace) since coroutine switches are not inlined.
+*/
+LJFOLD(FLOAD TNEW IRFL_TAB_ASIZE)
+LJFOLDF(fload_tab_tnew_asize)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD) && lj_opt_fwd_tptr(J, fins->op1))
+    return INTFOLD(fleft->op1);
+  return NEXTFOLD;
+}
+
+LJFOLD(FLOAD TNEW IRFL_TAB_HMASK)
+LJFOLDF(fload_tab_tnew_hmask)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD) && lj_opt_fwd_tptr(J, fins->op1))
+    return INTFOLD((1 << fleft->op2)-1);
+  return NEXTFOLD;
+}
+
+LJFOLD(FLOAD TDUP IRFL_TAB_ASIZE)
+LJFOLDF(fload_tab_tdup_asize)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD) && lj_opt_fwd_tptr(J, fins->op1))
+    return INTFOLD((int32_t)ir_ktab(IR(fleft->op1))->asize);
+  return NEXTFOLD;
+}
+
+LJFOLD(FLOAD TDUP IRFL_TAB_HMASK)
+LJFOLDF(fload_tab_tdup_hmask)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD) && lj_opt_fwd_tptr(J, fins->op1))
+    return INTFOLD((int32_t)ir_ktab(IR(fleft->op1))->hmask);
+  return NEXTFOLD;
+}
+
+LJFOLD(HREF any any)
+LJFOLD(FLOAD any IRFL_TAB_ARRAY)
+LJFOLD(FLOAD any IRFL_TAB_NODE)
+LJFOLD(FLOAD any IRFL_TAB_ASIZE)
+LJFOLD(FLOAD any IRFL_TAB_HMASK)
+LJFOLDF(fload_tab_ah)
+{
+  TRef tr = lj_opt_cse(J);
+  return lj_opt_fwd_tptr(J, tref_ref(tr)) ? tr : EMITFOLD;
+}
+
+/* Strings are immutable, so we can safely FOLD/CSE the related FLOAD. */
+LJFOLD(FLOAD KGC IRFL_STR_LEN)
+LJFOLDF(fload_str_len_kgc)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD))
+    return INTFOLD((int32_t)ir_kstr(fleft)->len);
+  return NEXTFOLD;
+}
+
+LJFOLD(FLOAD SNEW IRFL_STR_LEN)
+LJFOLDF(fload_str_len_snew)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD)) {
+    PHIBARRIER(fleft);
+    return fleft->op2;
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(FLOAD TOSTR IRFL_STR_LEN)
+LJFOLDF(fload_str_len_tostr)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD) && fleft->op2 == IRTOSTR_CHAR)
+    return INTFOLD(1);
+  return NEXTFOLD;
+}
+
+LJFOLD(FLOAD any IRFL_SBUF_W)
+LJFOLD(FLOAD any IRFL_SBUF_E)
+LJFOLD(FLOAD any IRFL_SBUF_B)
+LJFOLD(FLOAD any IRFL_SBUF_L)
+LJFOLD(FLOAD any IRFL_SBUF_REF)
+LJFOLD(FLOAD any IRFL_SBUF_R)
+LJFOLDF(fload_sbuf)
+{
+  TRef tr = lj_opt_fwd_fload(J);
+  return lj_opt_fwd_sbuf(J, tref_ref(tr)) ? tr : EMITFOLD;
+}
+
+/* The fast function ID of function objects is immutable. */
+LJFOLD(FLOAD KGC IRFL_FUNC_FFID)
+LJFOLDF(fload_func_ffid_kgc)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD))
+    return INTFOLD((int32_t)ir_kfunc(fleft)->c.ffid);
+  return NEXTFOLD;
+}
+
+/* The C type ID of cdata objects is immutable. */
+LJFOLD(FLOAD KGC IRFL_CDATA_CTYPEID)
+LJFOLDF(fload_cdata_typeid_kgc)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD))
+    return INTFOLD((int32_t)ir_kcdata(fleft)->ctypeid);
+  return NEXTFOLD;
+}
+
+/* Get the contents of immutable cdata objects. */
+LJFOLD(FLOAD KGC IRFL_CDATA_PTR)
+LJFOLD(FLOAD KGC IRFL_CDATA_INT)
+LJFOLD(FLOAD KGC IRFL_CDATA_INT64)
+LJFOLDF(fload_cdata_int64_kgc)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD)) {
+    void *p = cdataptr(ir_kcdata(fleft));
+    if (irt_is64(fins->t))
+      return INT64FOLD(*(uint64_t *)p);
+    else
+      return INTFOLD(*(int32_t *)p);
+  }
+  return NEXTFOLD;
+}
+
+LJFOLD(FLOAD CNEW IRFL_CDATA_CTYPEID)
+LJFOLD(FLOAD CNEWI IRFL_CDATA_CTYPEID)
+LJFOLDF(fload_cdata_typeid_cnew)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD))
+    return fleft->op1;  /* No PHI barrier needed. CNEW/CNEWI op1 is const. */
+  return NEXTFOLD;
+}
+
+/* Pointer, int and int64 cdata objects are immutable. */
+LJFOLD(FLOAD CNEWI IRFL_CDATA_PTR)
+LJFOLD(FLOAD CNEWI IRFL_CDATA_INT)
+LJFOLD(FLOAD CNEWI IRFL_CDATA_INT64)
+LJFOLDF(fload_cdata_ptr_int64_cnew)
+{
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_FOLD))
+    return fleft->op2;  /* Fold even across PHI to avoid allocations. */
+  return NEXTFOLD;
+}
+
+LJFOLD(FLOAD any IRFL_STR_LEN)
+LJFOLD(FLOAD any IRFL_FUNC_ENV)
+LJFOLD(FLOAD any IRFL_THREAD_ENV)
+LJFOLD(FLOAD any IRFL_CDATA_CTYPEID)
+LJFOLD(FLOAD any IRFL_CDATA_PTR)
+LJFOLD(FLOAD any IRFL_CDATA_INT)
+LJFOLD(FLOAD any IRFL_CDATA_INT64)
+LJFOLD(VLOAD any any)  /* Vararg loads have no corresponding stores. */
+LJFOLDX(lj_opt_cse)
+
+/* All other field loads need alias analysis. */
+LJFOLD(FLOAD any any)
+LJFOLDX(lj_opt_fwd_fload)
+
+/* This is for LOOP only. Recording handles SLOADs internally. */
+LJFOLD(SLOAD any any)
+LJFOLDF(fwd_sload)
+{
+  if ((fins->op2 & IRSLOAD_FRAME)) {
+    TRef tr = lj_opt_cse(J);
+    return tref_ref(tr) < J->chain[IR_RETF] ? EMITFOLD : tr;
+  } else {
+    lj_assertJ(J->slot[fins->op1] != 0, "uninitialized slot accessed");
+    return J->slot[fins->op1];
+  }
+}
+
+/* Only fold for KKPTR. The pointer _and_ the contents must be const. */
+LJFOLD(XLOAD KKPTR any)
+LJFOLDF(xload_kptr)
+{
+  TRef tr = kfold_xload(J, fins, ir_kptr(fleft));
+  return tr ? tr : NEXTFOLD;
+}
+
+LJFOLD(XLOAD any any)
+LJFOLDX(lj_opt_fwd_xload)
+
+/* -- Frame handling ------------------------------------------------------ */
+
+/* Prevent CSE of a REF_BASE operand across IR_RETF. */
+LJFOLD(SUB any BASE)
+LJFOLD(SUB BASE any)
+LJFOLD(EQ any BASE)
+LJFOLDF(fold_base)
+{
+  return lj_opt_cselim(J, J->chain[IR_RETF]);
+}
+
+/* -- Write barriers ------------------------------------------------------ */
+
+/* Write barriers are amenable to CSE, but not across any incremental
+** GC steps.
+**
+** The same logic applies to open upvalue references, because a stack
+** may be resized during a GC step (not the current stack, but maybe that
+** of a coroutine).
+*/
+LJFOLD(TBAR any)
+LJFOLD(OBAR any any)
+LJFOLD(UREFO any any)
+LJFOLDF(barrier_tab)
+{
+  TRef tr = lj_opt_cse(J);
+  if (gcstep_barrier(J, tref_ref(tr)))  /* CSE across GC step? */
+    return EMITFOLD;  /* Raw emit. Assumes fins is left intact by CSE. */
+  return tr;
+}
+
+LJFOLD(TBAR TNEW)
+LJFOLD(TBAR TDUP)
+LJFOLDF(barrier_tnew_tdup)
+{
+  /* New tables are always white and never need a barrier. */
+  if (fins->op1 < J->chain[IR_LOOP])  /* Except across a GC step. */
+    return NEXTFOLD;
+  return DROPFOLD;
+}
+
+/* -- Profiling ----------------------------------------------------------- */
+
+LJFOLD(PROF any any)
+LJFOLDF(prof)
+{
+  IRRef ref = J->chain[IR_PROF];
+  if (ref+1 == J->cur.nins)  /* Drop neighbouring IR_PROF. */
+    return ref;
+  return EMITFOLD;
+}
+
+/* -- Stores and allocations ---------------------------------------------- */
+
+/* Stores and allocations cannot be folded or passed on to CSE in general.
+** But some stores can be eliminated with dead-store elimination (DSE).
+**
+** Caveat: *all* stores and allocs must be listed here or they end up at CSE!
+*/
+
+LJFOLD(ASTORE any any)
+LJFOLD(HSTORE any any)
+LJFOLDX(lj_opt_dse_ahstore)
+
+LJFOLD(USTORE any any)
+LJFOLDX(lj_opt_dse_ustore)
+
+LJFOLD(FSTORE any any)
+LJFOLDX(lj_opt_dse_fstore)
+
+LJFOLD(XSTORE any any)
+LJFOLDX(lj_opt_dse_xstore)
+
+LJFOLD(NEWREF any any)  /* Treated like a store. */
+LJFOLD(TMPREF any any)
+LJFOLD(CALLA any any)
+LJFOLD(CALLL any any)  /* Safeguard fallback. */
+LJFOLD(CALLS any any)
+LJFOLD(CALLXS any any)
+LJFOLD(XBAR)
+LJFOLD(RETF any any)  /* Modifies BASE. */
+LJFOLD(TNEW any any)
+LJFOLD(TDUP any)
+LJFOLD(CNEW any any)
+LJFOLD(XSNEW any any)
+LJFOLDX(lj_ir_emit)
+
+/* ------------------------------------------------------------------------ */
+
+/* Every entry in the generated hash table is a 32 bit pattern:
+**
+** xxxxxxxx iiiiiii lllllll rrrrrrrrrr
+**
+**   xxxxxxxx = 8 bit index into fold function table
+**    iiiiiii = 7 bit folded instruction opcode
+**    lllllll = 7 bit left instruction opcode
+** rrrrrrrrrr = 8 bit right instruction opcode or 10 bits from literal field
+*/
+
+#include "lj_folddef.h"
+
+/* ------------------------------------------------------------------------ */
+
+/* Fold IR instruction. */
+TRef LJ_FASTCALL lj_opt_fold(jit_State *J)
+{
+  uint32_t key, any;
+  IRRef ref;
+
+  if (LJ_UNLIKELY((J->flags & JIT_F_OPT_MASK) != JIT_F_OPT_DEFAULT)) {
+    lj_assertJ(((JIT_F_OPT_FOLD|JIT_F_OPT_FWD|JIT_F_OPT_CSE|JIT_F_OPT_DSE) |
+		JIT_F_OPT_DEFAULT) == JIT_F_OPT_DEFAULT,
+	       "bad JIT_F_OPT_DEFAULT");
+    /* Folding disabled? Chain to CSE, but not for loads/stores/allocs. */
+    if (!(J->flags & JIT_F_OPT_FOLD) && irm_kind(lj_ir_mode[fins->o]) == IRM_N)
+      return lj_opt_cse(J);
+
+    /* No FOLD, forwarding or CSE? Emit raw IR for loads, except for SLOAD. */
+    if ((J->flags & (JIT_F_OPT_FOLD|JIT_F_OPT_FWD|JIT_F_OPT_CSE)) !=
+		    (JIT_F_OPT_FOLD|JIT_F_OPT_FWD|JIT_F_OPT_CSE) &&
+	irm_kind(lj_ir_mode[fins->o]) == IRM_L && fins->o != IR_SLOAD)
+      return lj_ir_emit(J);
+
+    /* No FOLD or DSE? Emit raw IR for stores. */
+    if ((J->flags & (JIT_F_OPT_FOLD|JIT_F_OPT_DSE)) !=
+		    (JIT_F_OPT_FOLD|JIT_F_OPT_DSE) &&
+	irm_kind(lj_ir_mode[fins->o]) == IRM_S)
+      return lj_ir_emit(J);
+  }
+
+  /* Fold engine start/retry point. */
+retry:
+  /* Construct key from opcode and operand opcodes (unless literal/none). */
+  key = ((uint32_t)fins->o << 17);
+  if (fins->op1 >= J->cur.nk) {
+    key += (uint32_t)IR(fins->op1)->o << 10;
+    *fleft = *IR(fins->op1);
+    if (fins->op1 < REF_TRUE)
+      fleft[1] = IR(fins->op1)[1];
+  }
+  if (fins->op2 >= J->cur.nk) {
+    key += (uint32_t)IR(fins->op2)->o;
+    *fright = *IR(fins->op2);
+    if (fins->op2 < REF_TRUE)
+      fright[1] = IR(fins->op2)[1];
+  } else {
+    key += (fins->op2 & 0x3ffu);  /* Literal mask. Must include IRCONV_*MASK. */
+  }
+
+  /* Check for a match in order from most specific to least specific. */
+  any = 0;
+  for (;;) {
+    uint32_t k = key | (any & 0x1ffff);
+    uint32_t h = fold_hashkey(k);
+    uint32_t fh = fold_hash[h];  /* Lookup key in semi-perfect hash table. */
+    if ((fh & 0xffffff) == k || (fh = fold_hash[h+1], (fh & 0xffffff) == k)) {
+      ref = (IRRef)tref_ref(fold_func[fh >> 24](J));
+      if (ref != NEXTFOLD)
+	break;
+    }
+    if (any == 0xfffff)  /* Exhausted folding. Pass on to CSE. */
+      return lj_opt_cse(J);
+    any = (any | (any >> 10)) ^ 0xffc00;
+  }
+
+  /* Return value processing, ordered by frequency. */
+  if (LJ_LIKELY(ref >= MAX_FOLD))
+    return TREF(ref, irt_t(IR(ref)->t));
+  if (ref == RETRYFOLD)
+    goto retry;
+  if (ref == KINTFOLD)
+    return lj_ir_kint(J, fins->i);
+  if (ref == FAILFOLD)
+    lj_trace_err(J, LJ_TRERR_GFAIL);
+  lj_assertJ(ref == DROPFOLD, "bad fold result");
+  return REF_DROP;
+}
+
+/* -- Common-Subexpression Elimination ------------------------------------ */
+
+/* CSE an IR instruction. This is very fast due to the skip-list chains. */
+TRef LJ_FASTCALL lj_opt_cse(jit_State *J)
+{
+  /* Avoid narrow to wide store-to-load forwarding stall */
+  IRRef2 op12 = (IRRef2)fins->op1 + ((IRRef2)fins->op2 << 16);
+  IROp op = fins->o;
+  if (LJ_LIKELY(J->flags & JIT_F_OPT_CSE)) {
+    /* Limited search for same operands in per-opcode chain. */
+    IRRef ref = J->chain[op];
+    IRRef lim = fins->op1;
+    if (fins->op2 > lim) lim = fins->op2;  /* Relies on lit < REF_BIAS. */
+    while (ref > lim) {
+      if (IR(ref)->op12 == op12)
+	return TREF(ref, irt_t(IR(ref)->t));  /* Common subexpression found. */
+      ref = IR(ref)->prev;
+    }
+  }
+  /* Otherwise emit IR (inlined for speed). */
+  {
+    IRRef ref = lj_ir_nextins(J);
+    IRIns *ir = IR(ref);
+    ir->prev = J->chain[op];
+    ir->op12 = op12;
+    J->chain[op] = (IRRef1)ref;
+    ir->o = fins->o;
+    J->guardemit.irt |= fins->t.irt;
+    return TREF(ref, irt_t((ir->t = fins->t)));
+  }
+}
+
+/* CSE with explicit search limit. */
+TRef LJ_FASTCALL lj_opt_cselim(jit_State *J, IRRef lim)
+{
+  IRRef ref = J->chain[fins->o];
+  IRRef2 op12 = (IRRef2)fins->op1 + ((IRRef2)fins->op2 << 16);
+  while (ref > lim) {
+    if (IR(ref)->op12 == op12)
+      return ref;
+    ref = IR(ref)->prev;
+  }
+  return lj_ir_emit(J);
+}
+
+/* ------------------------------------------------------------------------ */
+
+#undef IR
+#undef fins
+#undef fleft
+#undef fright
+#undef knumleft
+#undef knumright
+#undef emitir
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_opt_loop.c b/libs/luajit-cmake/luajit/src/lj_opt_loop.c
new file mode 100644
index 0000000..ee3ee04
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_opt_loop.c
@@ -0,0 +1,453 @@
+/*
+** LOOP: Loop Optimizations.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_opt_loop_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#include "lj_snap.h"
+#include "lj_vm.h"
+
+/* Loop optimization:
+**
+** Traditional Loop-Invariant Code Motion (LICM) splits the instructions
+** of a loop into invariant and variant instructions. The invariant
+** instructions are hoisted out of the loop and only the variant
+** instructions remain inside the loop body.
+**
+** Unfortunately LICM is mostly useless for compiling dynamic languages.
+** The IR has many guards and most of the subsequent instructions are
+** control-dependent on them. The first non-hoistable guard would
+** effectively prevent hoisting of all subsequent instructions.
+**
+** That's why we use a special form of unrolling using copy-substitution,
+** combined with redundancy elimination:
+**
+** The recorded instruction stream is re-emitted to the compiler pipeline
+** with substituted operands. The substitution table is filled with the
+** refs returned by re-emitting each instruction. This can be done
+** on-the-fly, because the IR is in strict SSA form, where every ref is
+** defined before its use.
+**
+** This aproach generates two code sections, separated by the LOOP
+** instruction:
+**
+** 1. The recorded instructions form a kind of pre-roll for the loop. It
+** contains a mix of invariant and variant instructions and performs
+** exactly one loop iteration (but not necessarily the 1st iteration).
+**
+** 2. The loop body contains only the variant instructions and performs
+** all remaining loop iterations.
+**
+** On first sight that looks like a waste of space, because the variant
+** instructions are present twice. But the key insight is that the
+** pre-roll honors the control-dependencies for *both* the pre-roll itself
+** *and* the loop body!
+**
+** It also means one doesn't have to explicitly model control-dependencies
+** (which, BTW, wouldn't help LICM much). And it's much easier to
+** integrate sparse snapshotting with this approach.
+**
+** One of the nicest aspects of this approach is that all of the
+** optimizations of the compiler pipeline (FOLD, CSE, FWD, etc.) can be
+** reused with only minor restrictions (e.g. one should not fold
+** instructions across loop-carried dependencies).
+**
+** But in general all optimizations can be applied which only need to look
+** backwards into the generated instruction stream. At any point in time
+** during the copy-substitution process this contains both a static loop
+** iteration (the pre-roll) and a dynamic one (from the to-be-copied
+** instruction up to the end of the partial loop body).
+**
+** Since control-dependencies are implicitly kept, CSE also applies to all
+** kinds of guards. The major advantage is that all invariant guards can
+** be hoisted, too.
+**
+** Load/store forwarding works across loop iterations, too. This is
+** important if loop-carried dependencies are kept in upvalues or tables.
+** E.g. 'self.idx = self.idx + 1' deep down in some OO-style method may
+** become a forwarded loop-recurrence after inlining.
+**
+** Since the IR is in SSA form, loop-carried dependencies have to be
+** modeled with PHI instructions. The potential candidates for PHIs are
+** collected on-the-fly during copy-substitution. After eliminating the
+** redundant ones, PHI instructions are emitted *below* the loop body.
+**
+** Note that this departure from traditional SSA form doesn't change the
+** semantics of the PHI instructions themselves. But it greatly simplifies
+** on-the-fly generation of the IR and the machine code.
+*/
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)		(&J->cur.ir[(ref)])
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+/* Emit raw IR without passing through optimizations. */
+#define emitir_raw(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_ir_emit(J))
+
+/* -- PHI elimination ----------------------------------------------------- */
+
+/* Emit or eliminate collected PHIs. */
+static void loop_emit_phi(jit_State *J, IRRef1 *subst, IRRef1 *phi, IRRef nphi,
+			  SnapNo onsnap)
+{
+  int passx = 0;
+  IRRef i, j, nslots;
+  IRRef invar = J->chain[IR_LOOP];
+  /* Pass #1: mark redundant and potentially redundant PHIs. */
+  for (i = 0, j = 0; i < nphi; i++) {
+    IRRef lref = phi[i];
+    IRRef rref = subst[lref];
+    if (lref == rref || rref == REF_DROP) {  /* Invariants are redundant. */
+      irt_clearphi(IR(lref)->t);
+    } else {
+      phi[j++] = (IRRef1)lref;
+      if (!(IR(rref)->op1 == lref || IR(rref)->op2 == lref)) {
+	/* Quick check for simple recurrences failed, need pass2. */
+	irt_setmark(IR(lref)->t);
+	passx = 1;
+      }
+    }
+  }
+  nphi = j;
+  /* Pass #2: traverse variant part and clear marks of non-redundant PHIs. */
+  if (passx) {
+    SnapNo s;
+    for (i = J->cur.nins-1; i > invar; i--) {
+      IRIns *ir = IR(i);
+      if (!irref_isk(ir->op2)) irt_clearmark(IR(ir->op2)->t);
+      if (!irref_isk(ir->op1)) {
+	irt_clearmark(IR(ir->op1)->t);
+	if (ir->op1 < invar &&
+	    ir->o >= IR_CALLN && ir->o <= IR_CARG) {  /* ORDER IR */
+	  ir = IR(ir->op1);
+	  while (ir->o == IR_CARG) {
+	    if (!irref_isk(ir->op2)) irt_clearmark(IR(ir->op2)->t);
+	    if (irref_isk(ir->op1)) break;
+	    ir = IR(ir->op1);
+	    irt_clearmark(ir->t);
+	  }
+	}
+      }
+    }
+    for (s = J->cur.nsnap-1; s >= onsnap; s--) {
+      SnapShot *snap = &J->cur.snap[s];
+      SnapEntry *map = &J->cur.snapmap[snap->mapofs];
+      MSize n, nent = snap->nent;
+      for (n = 0; n < nent; n++) {
+	IRRef ref = snap_ref(map[n]);
+	if (!irref_isk(ref)) irt_clearmark(IR(ref)->t);
+      }
+    }
+  }
+  /* Pass #3: add PHIs for variant slots without a corresponding SLOAD. */
+  nslots = J->baseslot+J->maxslot;
+  for (i = 1; i < nslots; i++) {
+    IRRef ref = tref_ref(J->slot[i]);
+    while (!irref_isk(ref) && ref != subst[ref]) {
+      IRIns *ir = IR(ref);
+      irt_clearmark(ir->t);  /* Unmark potential uses, too. */
+      if (irt_isphi(ir->t) || irt_ispri(ir->t))
+	break;
+      irt_setphi(ir->t);
+      if (nphi >= LJ_MAX_PHI)
+	lj_trace_err(J, LJ_TRERR_PHIOV);
+      phi[nphi++] = (IRRef1)ref;
+      ref = subst[ref];
+      if (ref > invar)
+	break;
+    }
+  }
+  /* Pass #4: propagate non-redundant PHIs. */
+  while (passx) {
+    passx = 0;
+    for (i = 0; i < nphi; i++) {
+      IRRef lref = phi[i];
+      IRIns *ir = IR(lref);
+      if (!irt_ismarked(ir->t)) {  /* Propagate only from unmarked PHIs. */
+	IRIns *irr = IR(subst[lref]);
+	if (irt_ismarked(irr->t)) {  /* Right ref points to other PHI? */
+	  irt_clearmark(irr->t);  /* Mark that PHI as non-redundant. */
+	  passx = 1;  /* Retry. */
+	}
+      }
+    }
+  }
+  /* Pass #5: emit PHI instructions or eliminate PHIs. */
+  for (i = 0; i < nphi; i++) {
+    IRRef lref = phi[i];
+    IRIns *ir = IR(lref);
+    if (!irt_ismarked(ir->t)) {  /* Emit PHI if not marked. */
+      IRRef rref = subst[lref];
+      if (rref > invar)
+	irt_setphi(IR(rref)->t);
+      emitir_raw(IRT(IR_PHI, irt_type(ir->t)), lref, rref);
+    } else {  /* Otherwise eliminate PHI. */
+      irt_clearmark(ir->t);
+      irt_clearphi(ir->t);
+    }
+  }
+}
+
+/* -- Loop unrolling using copy-substitution ------------------------------ */
+
+/* Copy-substitute snapshot. */
+static void loop_subst_snap(jit_State *J, SnapShot *osnap,
+			    SnapEntry *loopmap, IRRef1 *subst)
+{
+  SnapEntry *nmap, *omap = &J->cur.snapmap[osnap->mapofs];
+  SnapEntry *nextmap = &J->cur.snapmap[snap_nextofs(&J->cur, osnap)];
+  MSize nmapofs;
+  MSize on, ln, nn, onent = osnap->nent;
+  BCReg nslots = osnap->nslots;
+  SnapShot *snap = &J->cur.snap[J->cur.nsnap];
+  if (irt_isguard(J->guardemit)) {  /* Guard inbetween? */
+    nmapofs = J->cur.nsnapmap;
+    J->cur.nsnap++;  /* Add new snapshot. */
+  } else {  /* Otherwise overwrite previous snapshot. */
+    snap--;
+    nmapofs = snap->mapofs;
+  }
+  J->guardemit.irt = 0;
+  /* Setup new snapshot. */
+  snap->mapofs = (uint32_t)nmapofs;
+  snap->ref = (IRRef1)J->cur.nins;
+  snap->mcofs = 0;
+  snap->nslots = nslots;
+  snap->topslot = osnap->topslot;
+  snap->count = 0;
+  nmap = &J->cur.snapmap[nmapofs];
+  /* Substitute snapshot slots. */
+  on = ln = nn = 0;
+  while (on < onent) {
+    SnapEntry osn = omap[on], lsn = loopmap[ln];
+    if (snap_slot(lsn) < snap_slot(osn)) {  /* Copy slot from loop map. */
+      nmap[nn++] = lsn;
+      ln++;
+    } else {  /* Copy substituted slot from snapshot map. */
+      if (snap_slot(lsn) == snap_slot(osn)) ln++;  /* Shadowed loop slot. */
+      if (!irref_isk(snap_ref(osn)))
+	osn = snap_setref(osn, subst[snap_ref(osn)]);
+      nmap[nn++] = osn;
+      on++;
+    }
+  }
+  while (snap_slot(loopmap[ln]) < nslots)  /* Copy remaining loop slots. */
+    nmap[nn++] = loopmap[ln++];
+  snap->nent = (uint8_t)nn;
+  omap += onent;
+  nmap += nn;
+  while (omap < nextmap)  /* Copy PC + frame links. */
+    *nmap++ = *omap++;
+  J->cur.nsnapmap = (uint32_t)(nmap - J->cur.snapmap);
+}
+
+typedef struct LoopState {
+  jit_State *J;
+  IRRef1 *subst;
+  MSize sizesubst;
+} LoopState;
+
+/* Unroll loop. */
+static void loop_unroll(LoopState *lps)
+{
+  jit_State *J = lps->J;
+  IRRef1 phi[LJ_MAX_PHI];
+  uint32_t nphi = 0;
+  IRRef1 *subst;
+  SnapNo onsnap;
+  SnapShot *osnap, *loopsnap;
+  SnapEntry *loopmap, *psentinel;
+  IRRef ins, invar;
+
+  /* Allocate substitution table.
+  ** Only non-constant refs in [REF_BIAS,invar) are valid indexes.
+  */
+  invar = J->cur.nins;
+  lps->sizesubst = invar - REF_BIAS;
+  lps->subst = lj_mem_newvec(J->L, lps->sizesubst, IRRef1);
+  subst = lps->subst - REF_BIAS;
+  subst[REF_BASE] = REF_BASE;
+
+  /* LOOP separates the pre-roll from the loop body. */
+  emitir_raw(IRTG(IR_LOOP, IRT_NIL), 0, 0);
+
+  /* Grow snapshot buffer and map for copy-substituted snapshots.
+  ** Need up to twice the number of snapshots minus #0 and loop snapshot.
+  ** Need up to twice the number of entries plus fallback substitutions
+  ** from the loop snapshot entries for each new snapshot.
+  ** Caveat: both calls may reallocate J->cur.snap and J->cur.snapmap!
+  */
+  onsnap = J->cur.nsnap;
+  lj_snap_grow_buf(J, 2*onsnap-2);
+  lj_snap_grow_map(J, J->cur.nsnapmap*2+(onsnap-2)*J->cur.snap[onsnap-1].nent);
+
+  /* The loop snapshot is used for fallback substitutions. */
+  loopsnap = &J->cur.snap[onsnap-1];
+  loopmap = &J->cur.snapmap[loopsnap->mapofs];
+  /* The PC of snapshot #0 and the loop snapshot must match. */
+  psentinel = &loopmap[loopsnap->nent];
+  lj_assertJ(*psentinel == J->cur.snapmap[J->cur.snap[0].nent],
+	     "mismatched PC for loop snapshot");
+  *psentinel = SNAP(255, 0, 0);  /* Replace PC with temporary sentinel. */
+
+  /* Start substitution with snapshot #1 (#0 is empty for root traces). */
+  osnap = &J->cur.snap[1];
+
+  /* Copy and substitute all recorded instructions and snapshots. */
+  for (ins = REF_FIRST; ins < invar; ins++) {
+    IRIns *ir;
+    IRRef op1, op2;
+
+    if (ins >= osnap->ref)  /* Instruction belongs to next snapshot? */
+      loop_subst_snap(J, osnap++, loopmap, subst);  /* Copy-substitute it. */
+
+    /* Substitute instruction operands. */
+    ir = IR(ins);
+    op1 = ir->op1;
+    if (!irref_isk(op1)) op1 = subst[op1];
+    op2 = ir->op2;
+    if (!irref_isk(op2)) op2 = subst[op2];
+    if (irm_kind(lj_ir_mode[ir->o]) == IRM_N &&
+	op1 == ir->op1 && op2 == ir->op2) {  /* Regular invariant ins? */
+      subst[ins] = (IRRef1)ins;  /* Shortcut. */
+    } else {
+      /* Re-emit substituted instruction to the FOLD/CSE/etc. pipeline. */
+      IRType1 t = ir->t;  /* Get this first, since emitir may invalidate ir. */
+      IRRef ref = tref_ref(emitir(ir->ot & ~IRT_ISPHI, op1, op2));
+      subst[ins] = (IRRef1)ref;
+      if (ref != ins) {
+	IRIns *irr = IR(ref);
+	if (ref < invar) {  /* Loop-carried dependency? */
+	  /* Potential PHI? */
+	  if (!irref_isk(ref) && !irt_isphi(irr->t) && !irt_ispri(irr->t)) {
+	    irt_setphi(irr->t);
+	    if (nphi >= LJ_MAX_PHI)
+	      lj_trace_err(J, LJ_TRERR_PHIOV);
+	    phi[nphi++] = (IRRef1)ref;
+	  }
+	  /* Check all loop-carried dependencies for type instability. */
+	  if (!irt_sametype(t, irr->t)) {
+	    if (irt_isinteger(t) && irt_isinteger(irr->t))
+	      continue;
+	    else if (irt_isnum(t) && irt_isinteger(irr->t))  /* Fix int->num. */
+	      ref = tref_ref(emitir(IRTN(IR_CONV), ref, IRCONV_NUM_INT));
+	    else if (irt_isnum(irr->t) && irt_isinteger(t))  /* Fix num->int. */
+	      ref = tref_ref(emitir(IRTGI(IR_CONV), ref,
+				    IRCONV_INT_NUM|IRCONV_CHECK));
+	    else
+	      lj_trace_err(J, LJ_TRERR_TYPEINS);
+	    subst[ins] = (IRRef1)ref;
+	    irr = IR(ref);
+	    goto phiconv;
+	  }
+	} else if (ref != REF_DROP && ref > invar &&
+		   ((irr->o == IR_CONV && irr->op1 < invar) ||
+		    (irr->o == IR_ALEN && irr->op2 < invar &&
+					  irr->op2 != REF_NIL))) {
+	  /* May need an extra PHI for a CONV or ALEN hint. */
+	  ref = irr->o == IR_CONV ? irr->op1 : irr->op2;
+	  irr = IR(ref);
+	phiconv:
+	  if (ref < invar && !irref_isk(ref) && !irt_isphi(irr->t)) {
+	    irt_setphi(irr->t);
+	    if (nphi >= LJ_MAX_PHI)
+	      lj_trace_err(J, LJ_TRERR_PHIOV);
+	    phi[nphi++] = (IRRef1)ref;
+	  }
+	}
+      }
+    }
+  }
+  if (!irt_isguard(J->guardemit))  /* Drop redundant snapshot. */
+    J->cur.nsnapmap = (uint32_t)J->cur.snap[--J->cur.nsnap].mapofs;
+  lj_assertJ(J->cur.nsnapmap <= J->sizesnapmap, "bad snapshot map index");
+  *psentinel = J->cur.snapmap[J->cur.snap[0].nent];  /* Restore PC. */
+
+  loop_emit_phi(J, subst, phi, nphi, onsnap);
+}
+
+/* Undo any partial changes made by the loop optimization. */
+static void loop_undo(jit_State *J, IRRef ins, SnapNo nsnap, MSize nsnapmap)
+{
+  ptrdiff_t i;
+  SnapShot *snap = &J->cur.snap[nsnap-1];
+  SnapEntry *map = J->cur.snapmap;
+  map[snap->mapofs + snap->nent] = map[J->cur.snap[0].nent];  /* Restore PC. */
+  J->cur.nsnapmap = (uint32_t)nsnapmap;
+  J->cur.nsnap = nsnap;
+  J->guardemit.irt = 0;
+  lj_ir_rollback(J, ins);
+  for (i = 0; i < BPROP_SLOTS; i++) {  /* Remove backprop. cache entries. */
+    BPropEntry *bp = &J->bpropcache[i];
+    if (bp->val >= ins)
+      bp->key = 0;
+  }
+  for (ins--; ins >= REF_FIRST; ins--) {  /* Remove flags. */
+    IRIns *ir = IR(ins);
+    irt_clearphi(ir->t);
+    irt_clearmark(ir->t);
+  }
+}
+
+/* Protected callback for loop optimization. */
+static TValue *cploop_opt(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  UNUSED(L); UNUSED(dummy);
+  loop_unroll((LoopState *)ud);
+  return NULL;
+}
+
+/* Loop optimization. */
+int lj_opt_loop(jit_State *J)
+{
+  IRRef nins = J->cur.nins;
+  SnapNo nsnap = J->cur.nsnap;
+  MSize nsnapmap = J->cur.nsnapmap;
+  LoopState lps;
+  int errcode;
+  lps.J = J;
+  lps.subst = NULL;
+  lps.sizesubst = 0;
+  errcode = lj_vm_cpcall(J->L, NULL, &lps, cploop_opt);
+  lj_mem_freevec(J2G(J), lps.subst, lps.sizesubst, IRRef1);
+  if (LJ_UNLIKELY(errcode)) {
+    lua_State *L = J->L;
+    if (errcode == LUA_ERRRUN && tvisnumber(L->top-1)) {  /* Trace error? */
+      int32_t e = numberVint(L->top-1);
+      switch ((TraceError)e) {
+      case LJ_TRERR_TYPEINS:  /* Type instability. */
+      case LJ_TRERR_GFAIL:  /* Guard would always fail. */
+	/* Unrolling via recording fixes many cases, e.g. a flipped boolean. */
+	if (--J->instunroll < 0)  /* But do not unroll forever. */
+	  break;
+	L->top--;  /* Remove error object. */
+	loop_undo(J, nins, nsnap, nsnapmap);
+	return 1;  /* Loop optimization failed, continue recording. */
+      default:
+	break;
+      }
+    }
+    lj_err_throw(L, errcode);  /* Propagate all other errors. */
+  }
+  return 0;  /* Loop optimization is ok. */
+}
+
+#undef IR
+#undef emitir
+#undef emitir_raw
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_opt_mem.c b/libs/luajit-cmake/luajit/src/lj_opt_mem.c
new file mode 100644
index 0000000..09de2f0
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_opt_mem.c
@@ -0,0 +1,979 @@
+/*
+** Memory access optimizations.
+** AA: Alias Analysis using high-level semantic disambiguation.
+** FWD: Load Forwarding (L2L) + Store Forwarding (S2L).
+** DSE: Dead-Store Elimination.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_opt_mem_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_tab.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_iropt.h"
+#include "lj_ircall.h"
+#include "lj_dispatch.h"
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)		(&J->cur.ir[(ref)])
+#define fins		(&J->fold.ins)
+#define fleft		(J->fold.left)
+#define fright		(J->fold.right)
+
+/*
+** Caveat #1: return value is not always a TRef -- only use with tref_ref().
+** Caveat #2: FWD relies on active CSE for xREF operands -- see lj_opt_fold().
+*/
+
+/* Return values from alias analysis. */
+typedef enum {
+  ALIAS_NO,	/* The two refs CANNOT alias (exact). */
+  ALIAS_MAY,	/* The two refs MAY alias (inexact). */
+  ALIAS_MUST	/* The two refs MUST alias (exact). */
+} AliasRet;
+
+/* -- ALOAD/HLOAD forwarding and ASTORE/HSTORE elimination ---------------- */
+
+/* Simplified escape analysis: check for intervening stores. */
+static AliasRet aa_escape(jit_State *J, IRIns *ir, IRIns *stop)
+{
+  IRRef ref = (IRRef)(ir - J->cur.ir);  /* The ref that might be stored. */
+  for (ir++; ir < stop; ir++)
+    if (ir->op2 == ref &&
+	(ir->o == IR_ASTORE || ir->o == IR_HSTORE ||
+	 ir->o == IR_USTORE || ir->o == IR_FSTORE))
+      return ALIAS_MAY;  /* Reference was stored and might alias. */
+  return ALIAS_NO;  /* Reference was not stored. */
+}
+
+/* Alias analysis for two different table references. */
+static AliasRet aa_table(jit_State *J, IRRef ta, IRRef tb)
+{
+  IRIns *taba = IR(ta), *tabb = IR(tb);
+  int newa, newb;
+  lj_assertJ(ta != tb, "bad usage");
+  lj_assertJ(irt_istab(taba->t) && irt_istab(tabb->t), "bad usage");
+  /* Disambiguate new allocations. */
+  newa = (taba->o == IR_TNEW || taba->o == IR_TDUP);
+  newb = (tabb->o == IR_TNEW || tabb->o == IR_TDUP);
+  if (newa && newb)
+    return ALIAS_NO;  /* Two different allocations never alias. */
+  if (newb) {  /* At least one allocation? */
+    IRIns *tmp = taba; taba = tabb; tabb = tmp;
+  } else if (!newa) {
+    return ALIAS_MAY;  /* Anything else: we just don't know. */
+  }
+  return aa_escape(J, taba, tabb);
+}
+
+/* Check whether there's no aliasing table.clear. */
+static int fwd_aa_tab_clear(jit_State *J, IRRef lim, IRRef ta)
+{
+  IRRef ref = J->chain[IR_CALLS];
+  while (ref > lim) {
+    IRIns *calls = IR(ref);
+    if (calls->op2 == IRCALL_lj_tab_clear &&
+	(ta == calls->op1 || aa_table(J, ta, calls->op1) != ALIAS_NO))
+      return 0;  /* Conflict. */
+    ref = calls->prev;
+  }
+  return 1;  /* No conflict. Can safely FOLD/CSE. */
+}
+
+/* Check whether there's no aliasing NEWREF/table.clear for the left operand. */
+int LJ_FASTCALL lj_opt_fwd_tptr(jit_State *J, IRRef lim)
+{
+  IRRef ta = fins->op1;
+  IRRef ref = J->chain[IR_NEWREF];
+  while (ref > lim) {
+    IRIns *newref = IR(ref);
+    if (ta == newref->op1 || aa_table(J, ta, newref->op1) != ALIAS_NO)
+      return 0;  /* Conflict. */
+    ref = newref->prev;
+  }
+  return fwd_aa_tab_clear(J, lim, ta);
+}
+
+/* Alias analysis for array and hash access using key-based disambiguation. */
+static AliasRet aa_ahref(jit_State *J, IRIns *refa, IRIns *refb)
+{
+  IRRef ka = refa->op2;
+  IRRef kb = refb->op2;
+  IRIns *keya, *keyb;
+  IRRef ta, tb;
+  if (refa == refb)
+    return ALIAS_MUST;  /* Shortcut for same refs. */
+  keya = IR(ka);
+  if (keya->o == IR_KSLOT) { ka = keya->op1; keya = IR(ka); }
+  keyb = IR(kb);
+  if (keyb->o == IR_KSLOT) { kb = keyb->op1; keyb = IR(kb); }
+  ta = (refa->o==IR_HREFK || refa->o==IR_AREF) ? IR(refa->op1)->op1 : refa->op1;
+  tb = (refb->o==IR_HREFK || refb->o==IR_AREF) ? IR(refb->op1)->op1 : refb->op1;
+  if (ka == kb) {
+    /* Same key. Check for same table with different ref (NEWREF vs. HREF). */
+    if (ta == tb)
+      return ALIAS_MUST;  /* Same key, same table. */
+    else
+      return aa_table(J, ta, tb);  /* Same key, possibly different table. */
+  }
+  if (irref_isk(ka) && irref_isk(kb))
+    return ALIAS_NO;  /* Different constant keys. */
+  if (refa->o == IR_AREF) {
+    /* Disambiguate array references based on index arithmetic. */
+    int32_t ofsa = 0, ofsb = 0;
+    IRRef basea = ka, baseb = kb;
+    lj_assertJ(refb->o == IR_AREF, "expected AREF");
+    /* Gather base and offset from t[base] or t[base+-ofs]. */
+    if (keya->o == IR_ADD && irref_isk(keya->op2)) {
+      basea = keya->op1;
+      ofsa = IR(keya->op2)->i;
+      if (basea == kb && ofsa != 0)
+	return ALIAS_NO;  /* t[base+-ofs] vs. t[base]. */
+    }
+    if (keyb->o == IR_ADD && irref_isk(keyb->op2)) {
+      baseb = keyb->op1;
+      ofsb = IR(keyb->op2)->i;
+      if (ka == baseb && ofsb != 0)
+	return ALIAS_NO;  /* t[base] vs. t[base+-ofs]. */
+    }
+    if (basea == baseb && ofsa != ofsb)
+      return ALIAS_NO;  /* t[base+-o1] vs. t[base+-o2] and o1 != o2. */
+  } else {
+    /* Disambiguate hash references based on the type of their keys. */
+    lj_assertJ((refa->o==IR_HREF || refa->o==IR_HREFK || refa->o==IR_NEWREF) &&
+	       (refb->o==IR_HREF || refb->o==IR_HREFK || refb->o==IR_NEWREF),
+	       "bad xREF IR op %d or %d", refa->o, refb->o);
+    if (!irt_sametype(keya->t, keyb->t))
+      return ALIAS_NO;  /* Different key types. */
+  }
+  if (ta == tb)
+    return ALIAS_MAY;  /* Same table, cannot disambiguate keys. */
+  else
+    return aa_table(J, ta, tb);  /* Try to disambiguate tables. */
+}
+
+/* Array and hash load forwarding. */
+static TRef fwd_ahload(jit_State *J, IRRef xref)
+{
+  IRIns *xr = IR(xref);
+  IRRef lim = xref;  /* Search limit. */
+  IRRef ref;
+
+  /* Search for conflicting stores. */
+  ref = J->chain[fins->o+IRDELTA_L2S];
+  while (ref > xref) {
+    IRIns *store = IR(ref);
+    switch (aa_ahref(J, xr, IR(store->op1))) {
+    case ALIAS_NO:   break;  /* Continue searching. */
+    case ALIAS_MAY:  lim = ref; goto cselim;  /* Limit search for load. */
+    case ALIAS_MUST: return store->op2;  /* Store forwarding. */
+    }
+    ref = store->prev;
+  }
+
+  /* No conflicting store (yet): const-fold loads from allocations. */
+  {
+    IRIns *ir = (xr->o == IR_HREFK || xr->o == IR_AREF) ? IR(xr->op1) : xr;
+    IRRef tab = ir->op1;
+    ir = IR(tab);
+    if ((ir->o == IR_TNEW || (ir->o == IR_TDUP && irref_isk(xr->op2))) &&
+	fwd_aa_tab_clear(J, tab, tab)) {
+      /* A NEWREF with a number key may end up pointing to the array part.
+      ** But it's referenced from HSTORE and not found in the ASTORE chain.
+      ** For now simply consider this a conflict without forwarding anything.
+      */
+      if (xr->o == IR_AREF) {
+	IRRef ref2 = J->chain[IR_NEWREF];
+	while (ref2 > tab) {
+	  IRIns *newref = IR(ref2);
+	  if (irt_isnum(IR(newref->op2)->t))
+	    goto cselim;
+	  ref2 = newref->prev;
+	}
+      }
+      /* NEWREF inhibits CSE for HREF, and dependent FLOADs from HREFK/AREF.
+      ** But the above search for conflicting stores was limited by xref.
+      ** So continue searching, limited by the TNEW/TDUP. Store forwarding
+      ** is ok, too. A conflict does NOT limit the search for a matching load.
+      */
+      while (ref > tab) {
+	IRIns *store = IR(ref);
+	switch (aa_ahref(J, xr, IR(store->op1))) {
+	case ALIAS_NO:   break;  /* Continue searching. */
+	case ALIAS_MAY:  goto cselim;  /* Conflicting store. */
+	case ALIAS_MUST: return store->op2;  /* Store forwarding. */
+	}
+	ref = store->prev;
+      }
+      if (ir->o == IR_TNEW && !irt_isnil(fins->t))
+	return 0;  /* Type instability in loop-carried dependency. */
+      if (irt_ispri(fins->t)) {
+	return TREF_PRI(irt_type(fins->t));
+      } else if (irt_isnum(fins->t) || (LJ_DUALNUM && irt_isint(fins->t)) ||
+		 irt_isstr(fins->t)) {
+	TValue keyv;
+	cTValue *tv;
+	IRIns *key = IR(xr->op2);
+	if (key->o == IR_KSLOT) key = IR(key->op1);
+	lj_ir_kvalue(J->L, &keyv, key);
+	tv = lj_tab_get(J->L, ir_ktab(IR(ir->op1)), &keyv);
+	lj_assertJ(itype2irt(tv) == irt_type(fins->t),
+		   "mismatched type in constant table");
+	if (irt_isnum(fins->t))
+	  return lj_ir_knum_u64(J, tv->u64);
+	else if (LJ_DUALNUM && irt_isint(fins->t))
+	  return lj_ir_kint(J, intV(tv));
+	else
+	  return lj_ir_kstr(J, strV(tv));
+      }
+      /* Othwerwise: don't intern as a constant. */
+    }
+  }
+
+cselim:
+  /* Try to find a matching load. Below the conflicting store, if any. */
+  ref = J->chain[fins->o];
+  while (ref > lim) {
+    IRIns *load = IR(ref);
+    if (load->op1 == xref)
+      return ref;  /* Load forwarding. */
+    ref = load->prev;
+  }
+  return 0;  /* Conflict or no match. */
+}
+
+/* Reassociate ALOAD across PHIs to handle t[i-1] forwarding case. */
+static TRef fwd_aload_reassoc(jit_State *J)
+{
+  IRIns *irx = IR(fins->op1);
+  IRIns *key = IR(irx->op2);
+  if (key->o == IR_ADD && irref_isk(key->op2)) {
+    IRIns *add2 = IR(key->op1);
+    if (add2->o == IR_ADD && irref_isk(add2->op2) &&
+	IR(key->op2)->i == -IR(add2->op2)->i) {
+      IRRef ref = J->chain[IR_AREF];
+      IRRef lim = add2->op1;
+      if (irx->op1 > lim) lim = irx->op1;
+      while (ref > lim) {
+	IRIns *ir = IR(ref);
+	if (ir->op1 == irx->op1 && ir->op2 == add2->op1)
+	  return fwd_ahload(J, ref);
+	ref = ir->prev;
+      }
+    }
+  }
+  return 0;
+}
+
+/* ALOAD forwarding. */
+TRef LJ_FASTCALL lj_opt_fwd_aload(jit_State *J)
+{
+  IRRef ref;
+  if ((ref = fwd_ahload(J, fins->op1)) ||
+      (ref = fwd_aload_reassoc(J)))
+    return ref;
+  return EMITFOLD;
+}
+
+/* HLOAD forwarding. */
+TRef LJ_FASTCALL lj_opt_fwd_hload(jit_State *J)
+{
+  IRRef ref = fwd_ahload(J, fins->op1);
+  if (ref)
+    return ref;
+  return EMITFOLD;
+}
+
+/* HREFK forwarding. */
+TRef LJ_FASTCALL lj_opt_fwd_hrefk(jit_State *J)
+{
+  IRRef tab = fleft->op1;
+  IRRef ref = J->chain[IR_NEWREF];
+  while (ref > tab) {
+    IRIns *newref = IR(ref);
+    if (tab == newref->op1) {
+      if (fright->op1 == newref->op2 && fwd_aa_tab_clear(J, ref, tab))
+	return ref;  /* Forward from NEWREF. */
+      else
+	goto docse;
+    } else if (aa_table(J, tab, newref->op1) != ALIAS_NO) {
+      goto docse;
+    }
+    ref = newref->prev;
+  }
+  /* No conflicting NEWREF: key location unchanged for HREFK of TDUP. */
+  if (IR(tab)->o == IR_TDUP && fwd_aa_tab_clear(J, tab, tab))
+    fins->t.irt &= ~IRT_GUARD;  /* Drop HREFK guard. */
+docse:
+  return CSEFOLD;
+}
+
+/* Check whether HREF of TNEW/TDUP can be folded to niltv. */
+int LJ_FASTCALL lj_opt_fwd_href_nokey(jit_State *J)
+{
+  IRRef lim = fins->op1;  /* Search limit. */
+  IRRef ref;
+
+  /* The key for an ASTORE may end up in the hash part after a NEWREF. */
+  if (irt_isnum(fright->t) && J->chain[IR_NEWREF] > lim) {
+    ref = J->chain[IR_ASTORE];
+    while (ref > lim) {
+      if (ref < J->chain[IR_NEWREF])
+	return 0;  /* Conflict. */
+      ref = IR(ref)->prev;
+    }
+  }
+
+  /* Search for conflicting stores. */
+  ref = J->chain[IR_HSTORE];
+  while (ref > lim) {
+    IRIns *store = IR(ref);
+    if (aa_ahref(J, fins, IR(store->op1)) != ALIAS_NO)
+      return 0;  /* Conflict. */
+    ref = store->prev;
+  }
+
+  return 1;  /* No conflict. Can fold to niltv. */
+}
+
+/* ASTORE/HSTORE elimination. */
+TRef LJ_FASTCALL lj_opt_dse_ahstore(jit_State *J)
+{
+  IRRef xref = fins->op1;  /* xREF reference. */
+  IRRef val = fins->op2;  /* Stored value reference. */
+  IRIns *xr = IR(xref);
+  IRRef1 *refp = &J->chain[fins->o];
+  IRRef ref = *refp;
+  while (ref > xref) {  /* Search for redundant or conflicting stores. */
+    IRIns *store = IR(ref);
+    switch (aa_ahref(J, xr, IR(store->op1))) {
+    case ALIAS_NO:
+      break;  /* Continue searching. */
+    case ALIAS_MAY:	/* Store to MAYBE the same location. */
+      if (store->op2 != val)  /* Conflict if the value is different. */
+	goto doemit;
+      break;  /* Otherwise continue searching. */
+    case ALIAS_MUST:	/* Store to the same location. */
+      if (store->op2 == val)  /* Same value: drop the new store. */
+	return DROPFOLD;
+      /* Different value: try to eliminate the redundant store. */
+      if (ref > J->chain[IR_LOOP]) {  /* Quick check to avoid crossing LOOP. */
+	IRIns *ir;
+	/* Check for any intervening guards (includes conflicting loads).
+	** Note that lj_tab_keyindex and lj_vm_next don't need guards,
+	** since they are followed by at least one guarded VLOAD.
+	*/
+	for (ir = IR(J->cur.nins-1); ir > store; ir--)
+	  if (irt_isguard(ir->t) || ir->o == IR_ALEN)
+	    goto doemit;  /* No elimination possible. */
+	/* Remove redundant store from chain and replace with NOP. */
+	*refp = store->prev;
+	lj_ir_nop(store);
+	/* Now emit the new store instead. */
+      }
+      goto doemit;
+    }
+    ref = *(refp = &store->prev);
+  }
+doemit:
+  return EMITFOLD;  /* Otherwise we have a conflict or simply no match. */
+}
+
+/* ALEN forwarding. */
+TRef LJ_FASTCALL lj_opt_fwd_alen(jit_State *J)
+{
+  IRRef tab = fins->op1;  /* Table reference. */
+  IRRef lim = tab;  /* Search limit. */
+  IRRef ref;
+
+  /* Search for conflicting HSTORE with numeric key. */
+  ref = J->chain[IR_HSTORE];
+  while (ref > lim) {
+    IRIns *store = IR(ref);
+    IRIns *href = IR(store->op1);
+    IRIns *key = IR(href->op2);
+    if (irt_isnum(key->o == IR_KSLOT ? IR(key->op1)->t : key->t)) {
+      lim = ref;  /* Conflicting store found, limits search for ALEN. */
+      break;
+    }
+    ref = store->prev;
+  }
+
+  /* Try to find a matching ALEN. */
+  ref = J->chain[IR_ALEN];
+  while (ref > lim) {
+    /* CSE for ALEN only depends on the table, not the hint. */
+    if (IR(ref)->op1 == tab) {
+      IRRef sref;
+
+      /* Search for aliasing table.clear. */
+      if (!fwd_aa_tab_clear(J, ref, tab))
+	break;
+
+      /* Search for hint-forwarding or conflicting store. */
+      sref = J->chain[IR_ASTORE];
+      while (sref > ref) {
+	IRIns *store = IR(sref);
+	IRIns *aref = IR(store->op1);
+	IRIns *fref = IR(aref->op1);
+	if (tab == fref->op1) {  /* ASTORE to the same table. */
+	  /* Detect t[#t+1] = x idiom for push. */
+	  IRIns *idx = IR(aref->op2);
+	  if (!irt_isnil(store->t) &&
+	      idx->o == IR_ADD && idx->op1 == ref &&
+	      IR(idx->op2)->o == IR_KINT && IR(idx->op2)->i == 1) {
+	    /* Note: this requires an extra PHI check in loop unroll. */
+	    fins->op2 = aref->op2;  /* Set ALEN hint. */
+	  }
+	  goto doemit;  /* Conflicting store, possibly giving a hint. */
+	} else if (aa_table(J, tab, fref->op1) != ALIAS_NO) {
+	  goto doemit;  /* Conflicting store. */
+	}
+	sref = store->prev;
+      }
+
+      return ref;  /* Plain ALEN forwarding. */
+    }
+    ref = IR(ref)->prev;
+  }
+doemit:
+  return EMITFOLD;
+}
+
+/* -- ULOAD forwarding ---------------------------------------------------- */
+
+/* The current alias analysis for upvalues is very simplistic. It only
+** disambiguates between the unique upvalues of the same function.
+** This is good enough for now, since most upvalues are read-only.
+**
+** A more precise analysis would be feasible with the help of the parser:
+** generate a unique key for every upvalue, even across all prototypes.
+** Lacking a realistic use-case, it's unclear whether this is beneficial.
+*/
+static AliasRet aa_uref(IRIns *refa, IRIns *refb)
+{
+  if (refa->o != refb->o)
+    return ALIAS_NO;  /* Different UREFx type. */
+  if (refa->op1 == refb->op1) {  /* Same function. */
+    if (refa->op2 == refb->op2)
+      return ALIAS_MUST;  /* Same function, same upvalue idx. */
+    else
+      return ALIAS_NO;  /* Same function, different upvalue idx. */
+  } else {  /* Different functions, check disambiguation hash values. */
+    if (((refa->op2 ^ refb->op2) & 0xff))
+      return ALIAS_NO;  /* Upvalues with different hash values cannot alias. */
+    else
+      return ALIAS_MAY;  /* No conclusion can be drawn for same hash value. */
+  }
+}
+
+/* ULOAD forwarding. */
+TRef LJ_FASTCALL lj_opt_fwd_uload(jit_State *J)
+{
+  IRRef uref = fins->op1;
+  IRRef lim = REF_BASE;  /* Search limit. */
+  IRIns *xr = IR(uref);
+  IRRef ref;
+
+  /* Search for conflicting stores. */
+  ref = J->chain[IR_USTORE];
+  while (ref > lim) {
+    IRIns *store = IR(ref);
+    switch (aa_uref(xr, IR(store->op1))) {
+    case ALIAS_NO:   break;  /* Continue searching. */
+    case ALIAS_MAY:  lim = ref; goto cselim;  /* Limit search for load. */
+    case ALIAS_MUST: return store->op2;  /* Store forwarding. */
+    }
+    ref = store->prev;
+  }
+
+cselim:
+  /* Try to find a matching load. Below the conflicting store, if any. */
+  ref = J->chain[IR_ULOAD];
+  while (ref > lim) {
+    IRIns *ir = IR(ref);
+    if (ir->op1 == uref ||
+	(IR(ir->op1)->op12 == IR(uref)->op12 && IR(ir->op1)->o == IR(uref)->o))
+      return ref;  /* Match for identical or equal UREFx (non-CSEable UREFO). */
+    ref = ir->prev;
+  }
+  return lj_ir_emit(J);
+}
+
+/* USTORE elimination. */
+TRef LJ_FASTCALL lj_opt_dse_ustore(jit_State *J)
+{
+  IRRef xref = fins->op1;  /* xREF reference. */
+  IRRef val = fins->op2;  /* Stored value reference. */
+  IRIns *xr = IR(xref);
+  IRRef1 *refp = &J->chain[IR_USTORE];
+  IRRef ref = *refp;
+  while (ref > xref) {  /* Search for redundant or conflicting stores. */
+    IRIns *store = IR(ref);
+    switch (aa_uref(xr, IR(store->op1))) {
+    case ALIAS_NO:
+      break;  /* Continue searching. */
+    case ALIAS_MAY:	/* Store to MAYBE the same location. */
+      if (store->op2 != val)  /* Conflict if the value is different. */
+	goto doemit;
+      break;  /* Otherwise continue searching. */
+    case ALIAS_MUST:	/* Store to the same location. */
+      if (store->op2 == val)  /* Same value: drop the new store. */
+	return DROPFOLD;
+      /* Different value: try to eliminate the redundant store. */
+      if (ref > J->chain[IR_LOOP]) {  /* Quick check to avoid crossing LOOP. */
+	IRIns *ir;
+	/* Check for any intervening guards (includes conflicting loads). */
+	for (ir = IR(J->cur.nins-1); ir > store; ir--)
+	  if (irt_isguard(ir->t))
+	    goto doemit;  /* No elimination possible. */
+	/* Remove redundant store from chain and replace with NOP. */
+	*refp = store->prev;
+	lj_ir_nop(store);
+	if (ref+1 < J->cur.nins &&
+	    store[1].o == IR_OBAR && store[1].op1 == xref) {
+	  IRRef1 *bp = &J->chain[IR_OBAR];
+	  IRIns *obar;
+	  for (obar = IR(*bp); *bp > ref+1; obar = IR(*bp))
+	    bp = &obar->prev;
+	  /* Remove OBAR, too. */
+	  *bp = obar->prev;
+	  lj_ir_nop(obar);
+	}
+	/* Now emit the new store instead. */
+      }
+      goto doemit;
+    }
+    ref = *(refp = &store->prev);
+  }
+doemit:
+  return EMITFOLD;  /* Otherwise we have a conflict or simply no match. */
+}
+
+/* -- FLOAD forwarding and FSTORE elimination ----------------------------- */
+
+/* Alias analysis for field access.
+** Field loads are cheap and field stores are rare.
+** Simple disambiguation based on field types is good enough.
+*/
+static AliasRet aa_fref(jit_State *J, IRIns *refa, IRIns *refb)
+{
+  if (refa->op2 != refb->op2)
+    return ALIAS_NO;  /* Different fields. */
+  if (refa->op1 == refb->op1)
+    return ALIAS_MUST;  /* Same field, same object. */
+  else if (refa->op2 >= IRFL_TAB_META && refa->op2 <= IRFL_TAB_NOMM)
+    return aa_table(J, refa->op1, refb->op1);  /* Disambiguate tables. */
+  else
+    return ALIAS_MAY;  /* Same field, possibly different object. */
+}
+
+/* Only the loads for mutable fields end up here (see FOLD). */
+TRef LJ_FASTCALL lj_opt_fwd_fload(jit_State *J)
+{
+  IRRef oref = fins->op1;  /* Object reference. */
+  IRRef fid = fins->op2;  /* Field ID. */
+  IRRef lim = oref;  /* Search limit. */
+  IRRef ref;
+
+  /* Search for conflicting stores. */
+  ref = J->chain[IR_FSTORE];
+  while (ref > oref) {
+    IRIns *store = IR(ref);
+    switch (aa_fref(J, fins, IR(store->op1))) {
+    case ALIAS_NO:   break;  /* Continue searching. */
+    case ALIAS_MAY:  lim = ref; goto cselim;  /* Limit search for load. */
+    case ALIAS_MUST: return store->op2;  /* Store forwarding. */
+    }
+    ref = store->prev;
+  }
+
+  /* No conflicting store: const-fold field loads from allocations. */
+  if (fid == IRFL_TAB_META) {
+    IRIns *ir = IR(oref);
+    if (ir->o == IR_TNEW || ir->o == IR_TDUP)
+      return lj_ir_knull(J, IRT_TAB);
+  }
+
+cselim:
+  /* Try to find a matching load. Below the conflicting store, if any. */
+  return lj_opt_cselim(J, lim);
+}
+
+/* FSTORE elimination. */
+TRef LJ_FASTCALL lj_opt_dse_fstore(jit_State *J)
+{
+  IRRef fref = fins->op1;  /* FREF reference. */
+  IRRef val = fins->op2;  /* Stored value reference. */
+  IRIns *xr = IR(fref);
+  IRRef1 *refp = &J->chain[IR_FSTORE];
+  IRRef ref = *refp;
+  while (ref > fref) {  /* Search for redundant or conflicting stores. */
+    IRIns *store = IR(ref);
+    switch (aa_fref(J, xr, IR(store->op1))) {
+    case ALIAS_NO:
+      break;  /* Continue searching. */
+    case ALIAS_MAY:
+      if (store->op2 != val)  /* Conflict if the value is different. */
+	goto doemit;
+      break;  /* Otherwise continue searching. */
+    case ALIAS_MUST:
+      if (store->op2 == val &&
+	  !(xr->op2 >= IRFL_SBUF_W && xr->op2 <= IRFL_SBUF_R))
+	return DROPFOLD;  /* Same value: drop the new store. */
+      /* Different value: try to eliminate the redundant store. */
+      if (ref > J->chain[IR_LOOP]) {  /* Quick check to avoid crossing LOOP. */
+	IRIns *ir;
+	/* Check for any intervening guards or conflicting loads. */
+	for (ir = IR(J->cur.nins-1); ir > store; ir--)
+	  if (irt_isguard(ir->t) || (ir->o == IR_FLOAD && ir->op2 == xr->op2))
+	    goto doemit;  /* No elimination possible. */
+	/* Remove redundant store from chain and replace with NOP. */
+	*refp = store->prev;
+	lj_ir_nop(store);
+	/* Now emit the new store instead. */
+      }
+      goto doemit;
+    }
+    ref = *(refp = &store->prev);
+  }
+doemit:
+  return EMITFOLD;  /* Otherwise we have a conflict or simply no match. */
+}
+
+/* Check whether there's no aliasing buffer op between IRFL_SBUF_*. */
+int LJ_FASTCALL lj_opt_fwd_sbuf(jit_State *J, IRRef lim)
+{
+  IRRef ref;
+  if (J->chain[IR_BUFPUT] > lim)
+    return 0;  /* Conflict. */
+  ref = J->chain[IR_CALLS];
+  while (ref > lim) {
+    IRIns *ir = IR(ref);
+    if (ir->op2 >= IRCALL_lj_strfmt_putint && ir->op2 < IRCALL_lj_buf_tostr)
+      return 0;  /* Conflict. */
+    ref = ir->prev;
+  }
+  ref = J->chain[IR_CALLL];
+  while (ref > lim) {
+    IRIns *ir = IR(ref);
+    if (ir->op2 >= IRCALL_lj_strfmt_putint && ir->op2 < IRCALL_lj_buf_tostr)
+      return 0;  /* Conflict. */
+    ref = ir->prev;
+  }
+  return 1;  /* No conflict. Can safely FOLD/CSE. */
+}
+
+/* -- XLOAD forwarding and XSTORE elimination ----------------------------- */
+
+/* Find cdata allocation for a reference (if any). */
+static IRIns *aa_findcnew(jit_State *J, IRIns *ir)
+{
+  while (ir->o == IR_ADD) {
+    if (!irref_isk(ir->op1)) {
+      IRIns *ir1 = aa_findcnew(J, IR(ir->op1));  /* Left-recursion. */
+      if (ir1) return ir1;
+    }
+    if (irref_isk(ir->op2)) return NULL;
+    ir = IR(ir->op2);  /* Flatten right-recursion. */
+  }
+  return ir->o == IR_CNEW ? ir : NULL;
+}
+
+/* Alias analysis for two cdata allocations. */
+static AliasRet aa_cnew(jit_State *J, IRIns *refa, IRIns *refb)
+{
+  IRIns *cnewa = aa_findcnew(J, refa);
+  IRIns *cnewb = aa_findcnew(J, refb);
+  if (cnewa == cnewb)
+    return ALIAS_MAY;  /* Same allocation or neither is an allocation. */
+  if (cnewa && cnewb)
+    return ALIAS_NO;  /* Two different allocations never alias. */
+  if (cnewb) { cnewa = cnewb; refb = refa; }
+  return aa_escape(J, cnewa, refb);
+}
+
+/* Alias analysis for XLOAD/XSTORE. */
+static AliasRet aa_xref(jit_State *J, IRIns *refa, IRIns *xa, IRIns *xb)
+{
+  ptrdiff_t ofsa = 0, ofsb = 0;
+  IRIns *refb = IR(xb->op1);
+  IRIns *basea = refa, *baseb = refb;
+  if (refa == refb && irt_sametype(xa->t, xb->t))
+    return ALIAS_MUST;  /* Shortcut for same refs with identical type. */
+  /* Offset-based disambiguation. */
+  if (refa->o == IR_ADD && irref_isk(refa->op2)) {
+    IRIns *irk = IR(refa->op2);
+    basea = IR(refa->op1);
+    ofsa = (LJ_64 && irk->o == IR_KINT64) ? (ptrdiff_t)ir_k64(irk)->u64 :
+					    (ptrdiff_t)irk->i;
+  }
+  if (refb->o == IR_ADD && irref_isk(refb->op2)) {
+    IRIns *irk = IR(refb->op2);
+    baseb = IR(refb->op1);
+    ofsb = (LJ_64 && irk->o == IR_KINT64) ? (ptrdiff_t)ir_k64(irk)->u64 :
+					    (ptrdiff_t)irk->i;
+  }
+  /* Treat constified pointers like base vs. base+offset. */
+  if (basea->o == IR_KPTR && baseb->o == IR_KPTR) {
+    ofsb += (char *)ir_kptr(baseb) - (char *)ir_kptr(basea);
+    baseb = basea;
+  }
+  /* This implements (very) strict aliasing rules.
+  ** Different types do NOT alias, except for differences in signedness.
+  ** Type punning through unions is allowed (but forces a reload).
+  */
+  if (basea == baseb) {
+    ptrdiff_t sza = irt_size(xa->t), szb = irt_size(xb->t);
+    if (ofsa == ofsb) {
+      if (sza == szb && irt_isfp(xa->t) == irt_isfp(xb->t))
+	return ALIAS_MUST;  /* Same-sized, same-kind. May need to convert. */
+    } else if (ofsa + sza <= ofsb || ofsb + szb <= ofsa) {
+      return ALIAS_NO;  /* Non-overlapping base+-o1 vs. base+-o2. */
+    }
+    /* NYI: extract, extend or reinterpret bits (int <-> fp). */
+    return ALIAS_MAY;  /* Overlapping or type punning: force reload. */
+  }
+  if (!irt_sametype(xa->t, xb->t) &&
+      !(irt_typerange(xa->t, IRT_I8, IRT_U64) &&
+	((xa->t.irt - IRT_I8) ^ (xb->t.irt - IRT_I8)) == 1))
+    return ALIAS_NO;
+  /* NYI: structural disambiguation. */
+  return aa_cnew(J, basea, baseb);  /* Try to disambiguate allocations. */
+}
+
+/* Return CSEd reference or 0. Caveat: swaps lower ref to the right! */
+static IRRef reassoc_trycse(jit_State *J, IROp op, IRRef op1, IRRef op2)
+{
+  IRRef ref = J->chain[op];
+  IRRef lim = op1;
+  if (op2 > lim) { lim = op2; op2 = op1; op1 = lim; }
+  while (ref > lim) {
+    IRIns *ir = IR(ref);
+    if (ir->op1 == op1 && ir->op2 == op2)
+      return ref;
+    ref = ir->prev;
+  }
+  return 0;
+}
+
+/* Reassociate index references. */
+static IRRef reassoc_xref(jit_State *J, IRIns *ir)
+{
+  ptrdiff_t ofs = 0;
+  if (ir->o == IR_ADD && irref_isk(ir->op2)) {  /* Get constant offset. */
+    IRIns *irk = IR(ir->op2);
+    ofs = (LJ_64 && irk->o == IR_KINT64) ? (ptrdiff_t)ir_k64(irk)->u64 :
+					   (ptrdiff_t)irk->i;
+    ir = IR(ir->op1);
+  }
+  if (ir->o == IR_ADD) {  /* Add of base + index. */
+    /* Index ref > base ref for loop-carried dependences. Only check op1. */
+    IRIns *ir2, *ir1 = IR(ir->op1);
+    int32_t shift = 0;
+    IRRef idxref;
+    /* Determine index shifts. Don't bother with IR_MUL here. */
+    if (ir1->o == IR_BSHL && irref_isk(ir1->op2))
+      shift = IR(ir1->op2)->i;
+    else if (ir1->o == IR_ADD && ir1->op1 == ir1->op2)
+      shift = 1;
+    else
+      ir1 = ir;
+    ir2 = IR(ir1->op1);
+    /* A non-reassociated add. Must be a loop-carried dependence. */
+    if (ir2->o == IR_ADD && irt_isint(ir2->t) && irref_isk(ir2->op2))
+      ofs += (ptrdiff_t)IR(ir2->op2)->i << shift;
+    else
+      return 0;
+    idxref = ir2->op1;
+    /* Try to CSE the reassociated chain. Give up if not found. */
+    if (ir1 != ir &&
+	!(idxref = reassoc_trycse(J, ir1->o, idxref,
+				  ir1->o == IR_BSHL ? ir1->op2 : idxref)))
+      return 0;
+    if (!(idxref = reassoc_trycse(J, IR_ADD, idxref, ir->op2)))
+      return 0;
+    if (ofs != 0) {
+      IRRef refk = tref_ref(lj_ir_kintp(J, ofs));
+      if (!(idxref = reassoc_trycse(J, IR_ADD, idxref, refk)))
+	return 0;
+    }
+    return idxref;  /* Success, found a reassociated index reference. Phew. */
+  }
+  return 0;  /* Failure. */
+}
+
+/* XLOAD forwarding. */
+TRef LJ_FASTCALL lj_opt_fwd_xload(jit_State *J)
+{
+  IRRef xref = fins->op1;
+  IRIns *xr = IR(xref);
+  IRRef lim = xref;  /* Search limit. */
+  IRRef ref;
+
+  if ((fins->op2 & IRXLOAD_READONLY))
+    goto cselim;
+  if ((fins->op2 & IRXLOAD_VOLATILE))
+    goto doemit;
+
+  /* Search for conflicting stores. */
+  ref = J->chain[IR_XSTORE];
+retry:
+  if (J->chain[IR_CALLXS] > lim) lim = J->chain[IR_CALLXS];
+  if (J->chain[IR_XBAR] > lim) lim = J->chain[IR_XBAR];
+  while (ref > lim) {
+    IRIns *store = IR(ref);
+    switch (aa_xref(J, xr, fins, store)) {
+    case ALIAS_NO:   break;  /* Continue searching. */
+    case ALIAS_MAY:  lim = ref; goto cselim;  /* Limit search for load. */
+    case ALIAS_MUST:
+      /* Emit conversion if the loaded type doesn't match the forwarded type. */
+      if (!irt_sametype(fins->t, IR(store->op2)->t)) {
+	IRType dt = irt_type(fins->t), st = irt_type(IR(store->op2)->t);
+	if (dt == IRT_I8 || dt == IRT_I16) {  /* Trunc + sign-extend. */
+	  st = dt | IRCONV_SEXT;
+	  dt = IRT_INT;
+	} else if (dt == IRT_U8 || dt == IRT_U16) {  /* Trunc + zero-extend. */
+	  st = dt;
+	  dt = IRT_INT;
+	}
+	fins->ot = IRT(IR_CONV, dt);
+	fins->op1 = store->op2;
+	fins->op2 = (dt<<5)|st;
+	return RETRYFOLD;
+      }
+      return store->op2;  /* Store forwarding. */
+    }
+    ref = store->prev;
+  }
+
+cselim:
+  /* Try to find a matching load. Below the conflicting store, if any. */
+  ref = J->chain[IR_XLOAD];
+  while (ref > lim) {
+    /* CSE for XLOAD depends on the type, but not on the IRXLOAD_* flags. */
+    if (IR(ref)->op1 == xref && irt_sametype(IR(ref)->t, fins->t))
+      return ref;
+    ref = IR(ref)->prev;
+  }
+
+  /* Reassociate XLOAD across PHIs to handle a[i-1] forwarding case. */
+  if (!(fins->op2 & IRXLOAD_READONLY) && J->chain[IR_LOOP] &&
+      xref == fins->op1 && (xref = reassoc_xref(J, xr)) != 0) {
+    ref = J->chain[IR_XSTORE];
+    while (ref > lim)  /* Skip stores that have already been checked. */
+      ref = IR(ref)->prev;
+    lim = xref;
+    xr = IR(xref);
+    goto retry;  /* Retry with the reassociated reference. */
+  }
+doemit:
+  return EMITFOLD;
+}
+
+/* XSTORE elimination. */
+TRef LJ_FASTCALL lj_opt_dse_xstore(jit_State *J)
+{
+  IRRef xref = fins->op1;
+  IRIns *xr = IR(xref);
+  IRRef lim = xref;  /* Search limit. */
+  IRRef val = fins->op2;  /* Stored value reference. */
+  IRRef1 *refp = &J->chain[IR_XSTORE];
+  IRRef ref = *refp;
+  if (J->chain[IR_CALLXS] > lim) lim = J->chain[IR_CALLXS];
+  if (J->chain[IR_XBAR] > lim) lim = J->chain[IR_XBAR];
+  if (J->chain[IR_XSNEW] > lim) lim = J->chain[IR_XSNEW];
+  while (ref > lim) {  /* Search for redundant or conflicting stores. */
+    IRIns *store = IR(ref);
+    switch (aa_xref(J, xr, fins, store)) {
+    case ALIAS_NO:
+      break;  /* Continue searching. */
+    case ALIAS_MAY:
+      if (store->op2 != val)  /* Conflict if the value is different. */
+	goto doemit;
+      break;  /* Otherwise continue searching. */
+    case ALIAS_MUST:
+      if (store->op2 == val)  /* Same value: drop the new store. */
+	return DROPFOLD;
+      /* Different value: try to eliminate the redundant store. */
+      if (ref > J->chain[IR_LOOP]) {  /* Quick check to avoid crossing LOOP. */
+	IRIns *ir;
+	/* Check for any intervening guards or any XLOADs (no AA performed). */
+	for (ir = IR(J->cur.nins-1); ir > store; ir--)
+	  if (irt_isguard(ir->t) || ir->o == IR_XLOAD)
+	    goto doemit;  /* No elimination possible. */
+	/* Remove redundant store from chain and replace with NOP. */
+	*refp = store->prev;
+	lj_ir_nop(store);
+	/* Now emit the new store instead. */
+      }
+      goto doemit;
+    }
+    ref = *(refp = &store->prev);
+  }
+doemit:
+  return EMITFOLD;  /* Otherwise we have a conflict or simply no match. */
+}
+
+/* -- ASTORE/HSTORE previous type analysis -------------------------------- */
+
+/* Check whether the previous value for a table store is non-nil.
+** This can be derived either from a previous store or from a previous
+** load (because all loads from tables perform a type check).
+**
+** The result of the analysis can be used to avoid the metatable check
+** and the guard against HREF returning niltv. Both of these are cheap,
+** so let's not spend too much effort on the analysis.
+**
+** A result of 1 is exact: previous value CANNOT be nil.
+** A result of 0 is inexact: previous value MAY be nil.
+*/
+int lj_opt_fwd_wasnonnil(jit_State *J, IROpT loadop, IRRef xref)
+{
+  /* First check stores. */
+  IRRef ref = J->chain[loadop+IRDELTA_L2S];
+  while (ref > xref) {
+    IRIns *store = IR(ref);
+    if (store->op1 == xref) {  /* Same xREF. */
+      /* A nil store MAY alias, but a non-nil store MUST alias. */
+      return !irt_isnil(store->t);
+    } else if (irt_isnil(store->t)) {  /* Must check any nil store. */
+      IRRef skref = IR(store->op1)->op2;
+      IRRef xkref = IR(xref)->op2;
+      /* Same key type MAY alias. Need ALOAD check due to multiple int types. */
+      if (loadop == IR_ALOAD || irt_sametype(IR(skref)->t, IR(xkref)->t)) {
+	if (skref == xkref || !irref_isk(skref) || !irref_isk(xkref))
+	  return 0;  /* A nil store with same const key or var key MAY alias. */
+	/* Different const keys CANNOT alias. */
+      }  /* Different key types CANNOT alias. */
+    }  /* Other non-nil stores MAY alias. */
+    ref = store->prev;
+  }
+
+  /* Check loads since nothing could be derived from stores. */
+  ref = J->chain[loadop];
+  while (ref > xref) {
+    IRIns *load = IR(ref);
+    if (load->op1 == xref) {  /* Same xREF. */
+      /* A nil load MAY alias, but a non-nil load MUST alias. */
+      return !irt_isnil(load->t);
+    }  /* Other non-nil loads MAY alias. */
+    ref = load->prev;
+  }
+  return 0;  /* Nothing derived at all, previous value MAY be nil. */
+}
+
+/* ------------------------------------------------------------------------ */
+
+#undef IR
+#undef fins
+#undef fleft
+#undef fright
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_opt_narrow.c b/libs/luajit-cmake/luajit/src/lj_opt_narrow.c
new file mode 100644
index 0000000..586f1bc
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_opt_narrow.c
@@ -0,0 +1,622 @@
+/*
+** NARROW: Narrowing of numbers to integers (double to int32_t).
+** STRIPOV: Stripping of overflow checks.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_opt_narrow_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_bc.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#include "lj_vm.h"
+#include "lj_strscan.h"
+
+/* Rationale for narrowing optimizations:
+**
+** Lua has only a single number type and this is a FP double by default.
+** Narrowing doubles to integers does not pay off for the interpreter on a
+** current-generation x86/x64 machine. Most FP operations need the same
+** amount of execution resources as their integer counterparts, except
+** with slightly longer latencies. Longer latencies are a non-issue for
+** the interpreter, since they are usually hidden by other overhead.
+**
+** The total CPU execution bandwidth is the sum of the bandwidth of the FP
+** and the integer units, because they execute in parallel. The FP units
+** have an equal or higher bandwidth than the integer units. Not using
+** them means losing execution bandwidth. Moving work away from them to
+** the already quite busy integer units is a losing proposition.
+**
+** The situation for JIT-compiled code is a bit different: the higher code
+** density makes the extra latencies much more visible. Tight loops expose
+** the latencies for updating the induction variables. Array indexing
+** requires narrowing conversions with high latencies and additional
+** guards (to check that the index is really an integer). And many common
+** optimizations only work on integers.
+**
+** One solution would be speculative, eager narrowing of all number loads.
+** This causes many problems, like losing -0 or the need to resolve type
+** mismatches between traces. It also effectively forces the integer type
+** to have overflow-checking semantics. This impedes many basic
+** optimizations and requires adding overflow checks to all integer
+** arithmetic operations (whereas FP arithmetics can do without).
+**
+** Always replacing an FP op with an integer op plus an overflow check is
+** counter-productive on a current-generation super-scalar CPU. Although
+** the overflow check branches are highly predictable, they will clog the
+** execution port for the branch unit and tie up reorder buffers. This is
+** turning a pure data-flow dependency into a different data-flow
+** dependency (with slightly lower latency) *plus* a control dependency.
+** In general, you don't want to do this since latencies due to data-flow
+** dependencies can be well hidden by out-of-order execution.
+**
+** A better solution is to keep all numbers as FP values and only narrow
+** when it's beneficial to do so. LuaJIT uses predictive narrowing for
+** induction variables and demand-driven narrowing for index expressions,
+** integer arguments and bit operations. Additionally it can eliminate or
+** hoist most of the resulting overflow checks. Regular arithmetic
+** computations are never narrowed to integers.
+**
+** The integer type in the IR has convenient wrap-around semantics and
+** ignores overflow. Extra operations have been added for
+** overflow-checking arithmetic (ADDOV/SUBOV) instead of an extra type.
+** Apart from reducing overall complexity of the compiler, this also
+** nicely solves the problem where you want to apply algebraic
+** simplifications to ADD, but not to ADDOV. And the x86/x64 assembler can
+** use lea instead of an add for integer ADD, but not for ADDOV (lea does
+** not affect the flags, but it helps to avoid register moves).
+**
+**
+** All of the above has to be reconsidered for architectures with slow FP
+** operations or without a hardware FPU. The dual-number mode of LuaJIT
+** addresses this issue. Arithmetic operations are performed on integers
+** as far as possible and overflow checks are added as needed.
+**
+** This implies that narrowing for integer arguments and bit operations
+** should also strip overflow checks, e.g. replace ADDOV with ADD. The
+** original overflow guards are weak and can be eliminated by DCE, if
+** there's no other use.
+**
+** A slight twist is that it's usually beneficial to use overflow-checked
+** integer arithmetics if all inputs are already integers. This is the only
+** change that affects the single-number mode, too.
+*/
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)			(&J->cur.ir[(ref)])
+#define fins			(&J->fold.ins)
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+#define emitir_raw(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_ir_emit(J))
+
+/* -- Elimination of narrowing type conversions --------------------------- */
+
+/* Narrowing of index expressions and bit operations is demand-driven. The
+** trace recorder emits a narrowing type conversion (CONV.int.num or TOBIT)
+** in all of these cases (e.g. array indexing or string indexing). FOLD
+** already takes care of eliminating simple redundant conversions like
+** CONV.int.num(CONV.num.int(x)) ==> x.
+**
+** But the surrounding code is FP-heavy and arithmetic operations are
+** performed on FP numbers (for the single-number mode). Consider a common
+** example such as 'x=t[i+1]', with 'i' already an integer (due to induction
+** variable narrowing). The index expression would be recorded as
+**   CONV.int.num(ADD(CONV.num.int(i), 1))
+** which is clearly suboptimal.
+**
+** One can do better by recursively backpropagating the narrowing type
+** conversion across FP arithmetic operations. This turns FP ops into
+** their corresponding integer counterparts. Depending on the semantics of
+** the conversion they also need to check for overflow. Currently only ADD
+** and SUB are supported.
+**
+** The above example can be rewritten as
+**   ADDOV(CONV.int.num(CONV.num.int(i)), 1)
+** and then into ADDOV(i, 1) after folding of the conversions. The original
+** FP ops remain in the IR and are eliminated by DCE since all references to
+** them are gone.
+**
+** [In dual-number mode the trace recorder already emits ADDOV etc., but
+** this can be further reduced. See below.]
+**
+** Special care has to be taken to avoid narrowing across an operation
+** which is potentially operating on non-integral operands. One obvious
+** case is when an expression contains a non-integral constant, but ends
+** up as an integer index at runtime (like t[x+1.5] with x=0.5).
+**
+** Operations with two non-constant operands illustrate a similar problem
+** (like t[a+b] with a=1.5 and b=2.5). Backpropagation has to stop there,
+** unless it can be proven that either operand is integral (e.g. by CSEing
+** a previous conversion). As a not-so-obvious corollary this logic also
+** applies for a whole expression tree (e.g. t[(a+1)+(b+1)]).
+**
+** Correctness of the transformation is guaranteed by avoiding to expand
+** the tree by adding more conversions than the one we would need to emit
+** if not backpropagating. TOBIT employs a more optimistic rule, because
+** the conversion has special semantics, designed to make the life of the
+** compiler writer easier. ;-)
+**
+** Using on-the-fly backpropagation of an expression tree doesn't work
+** because it's unknown whether the transform is correct until the end.
+** This either requires IR rollback and cache invalidation for every
+** subtree or a two-pass algorithm. The former didn't work out too well,
+** so the code now combines a recursive collector with a stack-based
+** emitter.
+**
+** [A recursive backpropagation algorithm with backtracking, employing
+** skip-list lookup and round-robin caching, emitting stack operations
+** on-the-fly for a stack-based interpreter -- and all of that in a meager
+** kilobyte? Yep, compilers are a great treasure chest. Throw away your
+** textbooks and read the codebase of a compiler today!]
+**
+** There's another optimization opportunity for array indexing: it's
+** always accompanied by an array bounds-check. The outermost overflow
+** check may be delegated to the ABC operation. This works because ABC is
+** an unsigned comparison and wrap-around due to overflow creates negative
+** numbers.
+**
+** But this optimization is only valid for constants that cannot overflow
+** an int32_t into the range of valid array indexes [0..2^27+1). A check
+** for +-2^30 is safe since -2^31 - 2^30 wraps to 2^30 and 2^31-1 + 2^30
+** wraps to -2^30-1.
+**
+** It's also good enough in practice, since e.g. t[i+1] or t[i-10] are
+** quite common. So the above example finally ends up as ADD(i, 1)!
+**
+** Later on, the assembler is able to fuse the whole array reference and
+** the ADD into the memory operands of loads and other instructions. This
+** is why LuaJIT is able to generate very pretty (and fast) machine code
+** for array indexing. And that, my dear, concludes another story about
+** one of the hidden secrets of LuaJIT ...
+*/
+
+/* Maximum backpropagation depth and maximum stack size. */
+#define NARROW_MAX_BACKPROP	100
+#define NARROW_MAX_STACK	256
+
+/* The stack machine has a 32 bit instruction format: [IROpT | IRRef1]
+** The lower 16 bits hold a reference (or 0). The upper 16 bits hold
+** the IR opcode + type or one of the following special opcodes:
+*/
+enum {
+  NARROW_REF,		/* Push ref. */
+  NARROW_CONV,		/* Push conversion of ref. */
+  NARROW_SEXT,		/* Push sign-extension of ref. */
+  NARROW_INT		/* Push KINT ref. The next code holds an int32_t. */
+};
+
+typedef uint32_t NarrowIns;
+
+#define NARROWINS(op, ref)	(((op) << 16) + (ref))
+#define narrow_op(ins)		((IROpT)((ins) >> 16))
+#define narrow_ref(ins)		((IRRef1)(ins))
+
+/* Context used for narrowing of type conversions. */
+typedef struct NarrowConv {
+  jit_State *J;		/* JIT compiler state. */
+  NarrowIns *sp;	/* Current stack pointer. */
+  NarrowIns *maxsp;	/* Maximum stack pointer minus redzone. */
+  IRRef mode;		/* Conversion mode (IRCONV_*). */
+  IRType t;		/* Destination type: IRT_INT or IRT_I64. */
+  NarrowIns stack[NARROW_MAX_STACK];  /* Stack holding stack-machine code. */
+} NarrowConv;
+
+/* Lookup a reference in the backpropagation cache. */
+static BPropEntry *narrow_bpc_get(jit_State *J, IRRef1 key, IRRef mode)
+{
+  ptrdiff_t i;
+  for (i = 0; i < BPROP_SLOTS; i++) {
+    BPropEntry *bp = &J->bpropcache[i];
+    /* Stronger checks are ok, too. */
+    if (bp->key == key && bp->mode >= mode &&
+	((bp->mode ^ mode) & IRCONV_MODEMASK) == 0)
+      return bp;
+  }
+  return NULL;
+}
+
+/* Add an entry to the backpropagation cache. */
+static void narrow_bpc_set(jit_State *J, IRRef1 key, IRRef1 val, IRRef mode)
+{
+  uint32_t slot = J->bpropslot;
+  BPropEntry *bp = &J->bpropcache[slot];
+  J->bpropslot = (slot + 1) & (BPROP_SLOTS-1);
+  bp->key = key;
+  bp->val = val;
+  bp->mode = mode;
+}
+
+/* Backpropagate overflow stripping. */
+static void narrow_stripov_backprop(NarrowConv *nc, IRRef ref, int depth)
+{
+  jit_State *J = nc->J;
+  IRIns *ir = IR(ref);
+  if (ir->o == IR_ADDOV || ir->o == IR_SUBOV ||
+      (ir->o == IR_MULOV && (nc->mode & IRCONV_CONVMASK) == IRCONV_ANY)) {
+    BPropEntry *bp = narrow_bpc_get(nc->J, ref, IRCONV_TOBIT);
+    if (bp) {
+      ref = bp->val;
+    } else if (++depth < NARROW_MAX_BACKPROP && nc->sp < nc->maxsp) {
+      NarrowIns *savesp = nc->sp;
+      narrow_stripov_backprop(nc, ir->op1, depth);
+      if (nc->sp < nc->maxsp) {
+	narrow_stripov_backprop(nc, ir->op2, depth);
+	if (nc->sp < nc->maxsp) {
+	  *nc->sp++ = NARROWINS(IRT(ir->o - IR_ADDOV + IR_ADD, IRT_INT), ref);
+	  return;
+	}
+      }
+      nc->sp = savesp;  /* Path too deep, need to backtrack. */
+    }
+  }
+  *nc->sp++ = NARROWINS(NARROW_REF, ref);
+}
+
+/* Backpropagate narrowing conversion. Return number of needed conversions. */
+static int narrow_conv_backprop(NarrowConv *nc, IRRef ref, int depth)
+{
+  jit_State *J = nc->J;
+  IRIns *ir = IR(ref);
+  IRRef cref;
+
+  if (nc->sp >= nc->maxsp) return 10;  /* Path too deep. */
+
+  /* Check the easy cases first. */
+  if (ir->o == IR_CONV && (ir->op2 & IRCONV_SRCMASK) == IRT_INT) {
+    if ((nc->mode & IRCONV_CONVMASK) <= IRCONV_ANY)
+      narrow_stripov_backprop(nc, ir->op1, depth+1);
+    else
+      *nc->sp++ = NARROWINS(NARROW_REF, ir->op1);  /* Undo conversion. */
+    if (nc->t == IRT_I64)
+      *nc->sp++ = NARROWINS(NARROW_SEXT, 0);  /* Sign-extend integer. */
+    return 0;
+  } else if (ir->o == IR_KNUM) {  /* Narrow FP constant. */
+    lua_Number n = ir_knum(ir)->n;
+    if ((nc->mode & IRCONV_CONVMASK) == IRCONV_TOBIT) {
+      /* Allows a wider range of constants. */
+      int64_t k64 = (int64_t)n;
+      if (n == (lua_Number)k64) {  /* Only if const doesn't lose precision. */
+	*nc->sp++ = NARROWINS(NARROW_INT, 0);
+	*nc->sp++ = (NarrowIns)k64;  /* But always truncate to 32 bits. */
+	return 0;
+      }
+    } else {
+      int32_t k = lj_num2int(n);
+      /* Only if constant is a small integer. */
+      if (checki16(k) && n == (lua_Number)k) {
+	*nc->sp++ = NARROWINS(NARROW_INT, 0);
+	*nc->sp++ = (NarrowIns)k;
+	return 0;
+      }
+    }
+    return 10;  /* Never narrow other FP constants (this is rare). */
+  }
+
+  /* Try to CSE the conversion. Stronger checks are ok, too. */
+  cref = J->chain[fins->o];
+  while (cref > ref) {
+    IRIns *cr = IR(cref);
+    if (cr->op1 == ref &&
+	(fins->o == IR_TOBIT ||
+	 ((cr->op2 & IRCONV_MODEMASK) == (nc->mode & IRCONV_MODEMASK) &&
+	  irt_isguard(cr->t) >= irt_isguard(fins->t)))) {
+      *nc->sp++ = NARROWINS(NARROW_REF, cref);
+      return 0;  /* Already there, no additional conversion needed. */
+    }
+    cref = cr->prev;
+  }
+
+  /* Backpropagate across ADD/SUB. */
+  if (ir->o == IR_ADD || ir->o == IR_SUB) {
+    /* Try cache lookup first. */
+    IRRef mode = nc->mode;
+    BPropEntry *bp;
+    /* Inner conversions need a stronger check. */
+    if ((mode & IRCONV_CONVMASK) == IRCONV_INDEX && depth > 0)
+      mode += IRCONV_CHECK-IRCONV_INDEX;
+    bp = narrow_bpc_get(nc->J, (IRRef1)ref, mode);
+    if (bp) {
+      *nc->sp++ = NARROWINS(NARROW_REF, bp->val);
+      return 0;
+    } else if (nc->t == IRT_I64) {
+      /* Try sign-extending from an existing (checked) conversion to int. */
+      mode = (IRT_INT<<5)|IRT_NUM|IRCONV_INDEX;
+      bp = narrow_bpc_get(nc->J, (IRRef1)ref, mode);
+      if (bp) {
+	*nc->sp++ = NARROWINS(NARROW_REF, bp->val);
+	*nc->sp++ = NARROWINS(NARROW_SEXT, 0);
+	return 0;
+      }
+    }
+    if (++depth < NARROW_MAX_BACKPROP && nc->sp < nc->maxsp) {
+      NarrowIns *savesp = nc->sp;
+      int count = narrow_conv_backprop(nc, ir->op1, depth);
+      count += narrow_conv_backprop(nc, ir->op2, depth);
+      if (count <= 1) {  /* Limit total number of conversions. */
+	*nc->sp++ = NARROWINS(IRT(ir->o, nc->t), ref);
+	return count;
+      }
+      nc->sp = savesp;  /* Too many conversions, need to backtrack. */
+    }
+  }
+
+  /* Otherwise add a conversion. */
+  *nc->sp++ = NARROWINS(NARROW_CONV, ref);
+  return 1;
+}
+
+/* Emit the conversions collected during backpropagation. */
+static IRRef narrow_conv_emit(jit_State *J, NarrowConv *nc)
+{
+  /* The fins fields must be saved now -- emitir() overwrites them. */
+  IROpT guardot = irt_isguard(fins->t) ? IRTG(IR_ADDOV-IR_ADD, 0) : 0;
+  IROpT convot = fins->ot;
+  IRRef1 convop2 = fins->op2;
+  NarrowIns *next = nc->stack;  /* List of instructions from backpropagation. */
+  NarrowIns *last = nc->sp;
+  NarrowIns *sp = nc->stack;  /* Recycle the stack to store operands. */
+  while (next < last) {  /* Simple stack machine to process the ins. list. */
+    NarrowIns ref = *next++;
+    IROpT op = narrow_op(ref);
+    if (op == NARROW_REF) {
+      *sp++ = ref;
+    } else if (op == NARROW_CONV) {
+      *sp++ = emitir_raw(convot, ref, convop2);  /* Raw emit avoids a loop. */
+    } else if (op == NARROW_SEXT) {
+      lj_assertJ(sp >= nc->stack+1, "stack underflow");
+      sp[-1] = emitir(IRT(IR_CONV, IRT_I64), sp[-1],
+		      (IRT_I64<<5)|IRT_INT|IRCONV_SEXT);
+    } else if (op == NARROW_INT) {
+      lj_assertJ(next < last, "missing arg to NARROW_INT");
+      *sp++ = nc->t == IRT_I64 ?
+	      lj_ir_kint64(J, (int64_t)(int32_t)*next++) :
+	      lj_ir_kint(J, *next++);
+    } else {  /* Regular IROpT. Pops two operands and pushes one result. */
+      IRRef mode = nc->mode;
+      lj_assertJ(sp >= nc->stack+2, "stack underflow");
+      sp--;
+      /* Omit some overflow checks for array indexing. See comments above. */
+      if ((mode & IRCONV_CONVMASK) == IRCONV_INDEX) {
+	if (next == last && irref_isk(narrow_ref(sp[0])) &&
+	  (uint32_t)IR(narrow_ref(sp[0]))->i + 0x40000000u < 0x80000000u)
+	  guardot = 0;
+	else  /* Otherwise cache a stronger check. */
+	  mode += IRCONV_CHECK-IRCONV_INDEX;
+      }
+      sp[-1] = emitir(op+guardot, sp[-1], sp[0]);
+      /* Add to cache. */
+      if (narrow_ref(ref))
+	narrow_bpc_set(J, narrow_ref(ref), narrow_ref(sp[-1]), mode);
+    }
+  }
+  lj_assertJ(sp == nc->stack+1, "stack misalignment");
+  return nc->stack[0];
+}
+
+/* Narrow a type conversion of an arithmetic operation. */
+TRef LJ_FASTCALL lj_opt_narrow_convert(jit_State *J)
+{
+  if ((J->flags & JIT_F_OPT_NARROW)) {
+    NarrowConv nc;
+    nc.J = J;
+    nc.sp = nc.stack;
+    nc.maxsp = &nc.stack[NARROW_MAX_STACK-4];
+    nc.t = irt_type(fins->t);
+    if (fins->o == IR_TOBIT) {
+      nc.mode = IRCONV_TOBIT;  /* Used only in the backpropagation cache. */
+    } else {
+      nc.mode = fins->op2;
+    }
+    if (narrow_conv_backprop(&nc, fins->op1, 0) <= 1)
+      return narrow_conv_emit(J, &nc);
+  }
+  return NEXTFOLD;
+}
+
+/* -- Narrowing of implicit conversions ----------------------------------- */
+
+/* Recursively strip overflow checks. */
+static TRef narrow_stripov(jit_State *J, TRef tr, int lastop, IRRef mode)
+{
+  IRRef ref = tref_ref(tr);
+  IRIns *ir = IR(ref);
+  int op = ir->o;
+  if (op >= IR_ADDOV && op <= lastop) {
+    BPropEntry *bp = narrow_bpc_get(J, ref, mode);
+    if (bp) {
+      return TREF(bp->val, irt_t(IR(bp->val)->t));
+    } else {
+      IRRef op1 = ir->op1, op2 = ir->op2;  /* The IR may be reallocated. */
+      op1 = narrow_stripov(J, op1, lastop, mode);
+      op2 = narrow_stripov(J, op2, lastop, mode);
+      tr = emitir(IRT(op - IR_ADDOV + IR_ADD,
+		      ((mode & IRCONV_DSTMASK) >> IRCONV_DSH)), op1, op2);
+      narrow_bpc_set(J, ref, tref_ref(tr), mode);
+    }
+  } else if (LJ_64 && (mode & IRCONV_SEXT) && !irt_is64(ir->t)) {
+    tr = emitir(IRT(IR_CONV, IRT_INTP), tr, mode);
+  }
+  return tr;
+}
+
+/* Narrow array index. */
+TRef LJ_FASTCALL lj_opt_narrow_index(jit_State *J, TRef tr)
+{
+  IRIns *ir;
+  lj_assertJ(tref_isnumber(tr), "expected number type");
+  if (tref_isnum(tr))  /* Conversion may be narrowed, too. See above. */
+    return emitir(IRTGI(IR_CONV), tr, IRCONV_INT_NUM|IRCONV_INDEX);
+  /* Omit some overflow checks for array indexing. See comments above. */
+  ir = IR(tref_ref(tr));
+  if ((ir->o == IR_ADDOV || ir->o == IR_SUBOV) && irref_isk(ir->op2) &&
+      (uint32_t)IR(ir->op2)->i + 0x40000000u < 0x80000000u)
+    return emitir(IRTI(ir->o - IR_ADDOV + IR_ADD), ir->op1, ir->op2);
+  return tr;
+}
+
+/* Narrow conversion to integer operand (overflow undefined). */
+TRef LJ_FASTCALL lj_opt_narrow_toint(jit_State *J, TRef tr)
+{
+  if (tref_isstr(tr))
+    tr = emitir(IRTG(IR_STRTO, IRT_NUM), tr, 0);
+  if (tref_isnum(tr))  /* Conversion may be narrowed, too. See above. */
+    return emitir(IRTI(IR_CONV), tr, IRCONV_INT_NUM|IRCONV_ANY);
+  if (!tref_isinteger(tr))
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  /*
+  ** Undefined overflow semantics allow stripping of ADDOV, SUBOV and MULOV.
+  ** Use IRCONV_TOBIT for the cache entries, since the semantics are the same.
+  */
+  return narrow_stripov(J, tr, IR_MULOV, (IRT_INT<<5)|IRT_INT|IRCONV_TOBIT);
+}
+
+/* Narrow conversion to bitop operand (overflow wrapped). */
+TRef LJ_FASTCALL lj_opt_narrow_tobit(jit_State *J, TRef tr)
+{
+  if (tref_isstr(tr))
+    tr = emitir(IRTG(IR_STRTO, IRT_NUM), tr, 0);
+  if (tref_isnum(tr))  /* Conversion may be narrowed, too. See above. */
+    return emitir(IRTI(IR_TOBIT), tr, lj_ir_knum_tobit(J));
+  if (!tref_isinteger(tr))
+    lj_trace_err(J, LJ_TRERR_BADTYPE);
+  /*
+  ** Wrapped overflow semantics allow stripping of ADDOV and SUBOV.
+  ** MULOV cannot be stripped due to precision widening.
+  */
+  return narrow_stripov(J, tr, IR_SUBOV, (IRT_INT<<5)|IRT_INT|IRCONV_TOBIT);
+}
+
+#if LJ_HASFFI
+/* Narrow C array index (overflow undefined). */
+TRef LJ_FASTCALL lj_opt_narrow_cindex(jit_State *J, TRef tr)
+{
+  lj_assertJ(tref_isnumber(tr), "expected number type");
+  if (tref_isnum(tr))
+    return emitir(IRT(IR_CONV, IRT_INTP), tr, (IRT_INTP<<5)|IRT_NUM|IRCONV_ANY);
+  /* Undefined overflow semantics allow stripping of ADDOV, SUBOV and MULOV. */
+  return narrow_stripov(J, tr, IR_MULOV,
+			LJ_64 ? ((IRT_INTP<<5)|IRT_INT|IRCONV_SEXT) :
+				((IRT_INTP<<5)|IRT_INT|IRCONV_TOBIT));
+}
+#endif
+
+/* -- Narrowing of arithmetic operators ----------------------------------- */
+
+/* Check whether a number fits into an int32_t (-0 is ok, too). */
+static int numisint(lua_Number n)
+{
+  return (n == (lua_Number)lj_num2int(n));
+}
+
+/* Convert string to number. Error out for non-numeric string values. */
+static TRef conv_str_tonum(jit_State *J, TRef tr, TValue *o)
+{
+  if (tref_isstr(tr)) {
+    tr = emitir(IRTG(IR_STRTO, IRT_NUM), tr, 0);
+    /* Would need an inverted STRTO for this rare and useless case. */
+    if (!lj_strscan_num(strV(o), o))  /* Convert in-place. Value used below. */
+      lj_trace_err(J, LJ_TRERR_BADTYPE);  /* Punt if non-numeric. */
+  }
+  return tr;
+}
+
+/* Narrowing of arithmetic operations. */
+TRef lj_opt_narrow_arith(jit_State *J, TRef rb, TRef rc,
+			 TValue *vb, TValue *vc, IROp op)
+{
+  rb = conv_str_tonum(J, rb, vb);
+  rc = conv_str_tonum(J, rc, vc);
+  /* Must not narrow MUL in non-DUALNUM variant, because it loses -0. */
+  if ((op >= IR_ADD && op <= (LJ_DUALNUM ? IR_MUL : IR_SUB)) &&
+      tref_isinteger(rb) && tref_isinteger(rc) &&
+      numisint(lj_vm_foldarith(numberVnum(vb), numberVnum(vc),
+			       (int)op - (int)IR_ADD)))
+    return emitir(IRTGI((int)op - (int)IR_ADD + (int)IR_ADDOV), rb, rc);
+  if (!tref_isnum(rb)) rb = emitir(IRTN(IR_CONV), rb, IRCONV_NUM_INT);
+  if (!tref_isnum(rc)) rc = emitir(IRTN(IR_CONV), rc, IRCONV_NUM_INT);
+  return emitir(IRTN(op), rb, rc);
+}
+
+/* Narrowing of unary minus operator. */
+TRef lj_opt_narrow_unm(jit_State *J, TRef rc, TValue *vc)
+{
+  rc = conv_str_tonum(J, rc, vc);
+  if (tref_isinteger(rc)) {
+    uint32_t k = (uint32_t)numberVint(vc);
+    if ((LJ_DUALNUM || k != 0) && k != 0x80000000u) {
+      TRef zero = lj_ir_kint(J, 0);
+      if (!LJ_DUALNUM)
+	emitir(IRTGI(IR_NE), rc, zero);
+      return emitir(IRTGI(IR_SUBOV), zero, rc);
+    }
+    rc = emitir(IRTN(IR_CONV), rc, IRCONV_NUM_INT);
+  }
+  return emitir(IRTN(IR_NEG), rc, lj_ir_ksimd(J, LJ_KSIMD_NEG));
+}
+
+/* Narrowing of modulo operator. */
+TRef lj_opt_narrow_mod(jit_State *J, TRef rb, TRef rc, TValue *vb, TValue *vc)
+{
+  TRef tmp;
+  rb = conv_str_tonum(J, rb, vb);
+  rc = conv_str_tonum(J, rc, vc);
+  if ((LJ_DUALNUM || (J->flags & JIT_F_OPT_NARROW)) &&
+      tref_isinteger(rb) && tref_isinteger(rc) &&
+      (tvisint(vc) ? intV(vc) != 0 : !tviszero(vc))) {
+    emitir(IRTGI(IR_NE), rc, lj_ir_kint(J, 0));
+    return emitir(IRTI(IR_MOD), rb, rc);
+  }
+  /* b % c ==> b - floor(b/c)*c */
+  rb = lj_ir_tonum(J, rb);
+  rc = lj_ir_tonum(J, rc);
+  tmp = emitir(IRTN(IR_DIV), rb, rc);
+  tmp = emitir(IRTN(IR_FPMATH), tmp, IRFPM_FLOOR);
+  tmp = emitir(IRTN(IR_MUL), tmp, rc);
+  return emitir(IRTN(IR_SUB), rb, tmp);
+}
+
+/* -- Predictive narrowing of induction variables ------------------------- */
+
+/* Narrow a single runtime value. */
+static int narrow_forl(jit_State *J, cTValue *o)
+{
+  if (tvisint(o)) return 1;
+  if (LJ_DUALNUM || (J->flags & JIT_F_OPT_NARROW)) return numisint(numV(o));
+  return 0;
+}
+
+/* Narrow the FORL index type by looking at the runtime values. */
+IRType lj_opt_narrow_forl(jit_State *J, cTValue *tv)
+{
+  lj_assertJ(tvisnumber(&tv[FORL_IDX]) &&
+	     tvisnumber(&tv[FORL_STOP]) &&
+	     tvisnumber(&tv[FORL_STEP]),
+	     "expected number types");
+  /* Narrow only if the runtime values of start/stop/step are all integers. */
+  if (narrow_forl(J, &tv[FORL_IDX]) &&
+      narrow_forl(J, &tv[FORL_STOP]) &&
+      narrow_forl(J, &tv[FORL_STEP])) {
+    /* And if the loop index can't possibly overflow. */
+    lua_Number step = numberVnum(&tv[FORL_STEP]);
+    lua_Number sum = numberVnum(&tv[FORL_STOP]) + step;
+    if (0 <= step ? (sum <= 2147483647.0) : (sum >= -2147483648.0))
+      return IRT_INT;
+  }
+  return IRT_NUM;
+}
+
+#undef IR
+#undef fins
+#undef emitir
+#undef emitir_raw
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_opt_sink.c b/libs/luajit-cmake/luajit/src/lj_opt_sink.c
new file mode 100644
index 0000000..4b9008b
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_opt_sink.c
@@ -0,0 +1,258 @@
+/*
+** SINK: Allocation Sinking and Store Sinking.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_opt_sink_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_iropt.h"
+#include "lj_target.h"
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)		(&J->cur.ir[(ref)])
+
+/* Check whether the store ref points to an eligible allocation. */
+static IRIns *sink_checkalloc(jit_State *J, IRIns *irs)
+{
+  IRIns *ir = IR(irs->op1);
+  if (!irref_isk(ir->op2))
+    return NULL;  /* Non-constant key. */
+  if (ir->o == IR_HREFK || ir->o == IR_AREF)
+    ir = IR(ir->op1);
+  else if (!(ir->o == IR_HREF || ir->o == IR_NEWREF ||
+	     ir->o == IR_FREF || ir->o == IR_ADD))
+    return NULL;  /* Unhandled reference type (for XSTORE). */
+  ir = IR(ir->op1);
+  if (!(ir->o == IR_TNEW || ir->o == IR_TDUP || ir->o == IR_CNEW))
+    return NULL;  /* Not an allocation. */
+  return ir;  /* Return allocation. */
+}
+
+/* Recursively check whether a value depends on a PHI. */
+static int sink_phidep(jit_State *J, IRRef ref, int *workp)
+{
+  IRIns *ir = IR(ref);
+  if (!*workp) return 1;  /* Give up and pretend it does. */
+  (*workp)--;
+  if (irt_isphi(ir->t)) return 1;
+  if (ir->op1 >= REF_FIRST && sink_phidep(J, ir->op1, workp)) return 1;
+  if (ir->op2 >= REF_FIRST && sink_phidep(J, ir->op2, workp)) return 1;
+  return 0;
+}
+
+/* Check whether a value is a sinkable PHI or loop-invariant. */
+static int sink_checkphi(jit_State *J, IRIns *ira, IRRef ref)
+{
+  if (ref >= REF_FIRST) {
+    IRIns *ir = IR(ref);
+    if (irt_isphi(ir->t) || (ir->o == IR_CONV && ir->op2 == IRCONV_NUM_INT &&
+			     irt_isphi(IR(ir->op1)->t))) {
+      ira->prev++;
+      return 1;  /* Sinkable PHI. */
+    }
+    /* Otherwise the value must be loop-invariant. */
+    if (ref < J->loopref) {
+      /* Check for PHI dependencies, but give up after reasonable effort. */
+      int work = 64;
+      return !sink_phidep(J, ref, &work);
+    } else {
+      return 0;  /* Loop-variant. */
+    }
+  }
+  return 1;  /* Constant (non-PHI). */
+}
+
+/* Mark non-sinkable allocations using single-pass backward propagation.
+**
+** Roots for the marking process are:
+** - Some PHIs or snapshots (see below).
+** - Non-PHI, non-constant values stored to PHI allocations.
+** - All guards.
+** - Any remaining loads not eliminated by store-to-load forwarding.
+** - Stores with non-constant keys.
+** - All stored values.
+*/
+static void sink_mark_ins(jit_State *J)
+{
+  IRIns *ir, *irlast = IR(J->cur.nins-1);
+  for (ir = irlast ; ; ir--) {
+    switch (ir->o) {
+    case IR_BASE:
+      return;  /* Finished. */
+    case IR_ALOAD: case IR_HLOAD: case IR_XLOAD: case IR_TBAR: case IR_ALEN:
+      irt_setmark(IR(ir->op1)->t);  /* Mark ref for remaining loads. */
+      break;
+    case IR_FLOAD:
+      if (irt_ismarked(ir->t) || ir->op2 == IRFL_TAB_META)
+	irt_setmark(IR(ir->op1)->t);  /* Mark table for remaining loads. */
+      break;
+    case IR_ASTORE: case IR_HSTORE: case IR_FSTORE: case IR_XSTORE: {
+      IRIns *ira = sink_checkalloc(J, ir);
+      if (!ira || (irt_isphi(ira->t) && !sink_checkphi(J, ira, ir->op2)))
+	irt_setmark(IR(ir->op1)->t);  /* Mark ineligible ref. */
+      irt_setmark(IR(ir->op2)->t);  /* Mark stored value. */
+      break;
+      }
+#if LJ_HASFFI
+    case IR_CNEWI:
+      if (irt_isphi(ir->t) &&
+	  (!sink_checkphi(J, ir, ir->op2) ||
+	   (LJ_32 && ir+1 < irlast && (ir+1)->o == IR_HIOP &&
+	    !sink_checkphi(J, ir, (ir+1)->op2))))
+	irt_setmark(ir->t);  /* Mark ineligible allocation. */
+#endif
+      /* fallthrough */
+    case IR_USTORE:
+      irt_setmark(IR(ir->op2)->t);  /* Mark stored value. */
+      break;
+#if LJ_HASFFI
+    case IR_CALLXS:
+#endif
+    case IR_CALLS:
+      irt_setmark(IR(ir->op1)->t);  /* Mark (potentially) stored values. */
+      break;
+    case IR_PHI: {
+      IRIns *irl = IR(ir->op1), *irr = IR(ir->op2);
+      irl->prev = irr->prev = 0;  /* Clear PHI value counts. */
+      if (irl->o == irr->o &&
+	  (irl->o == IR_TNEW || irl->o == IR_TDUP ||
+	   (LJ_HASFFI && (irl->o == IR_CNEW || irl->o == IR_CNEWI))))
+	break;
+      irt_setmark(irl->t);
+      irt_setmark(irr->t);
+      break;
+      }
+    default:
+      if (irt_ismarked(ir->t) || irt_isguard(ir->t)) {  /* Propagate mark. */
+	if (ir->op1 >= REF_FIRST) irt_setmark(IR(ir->op1)->t);
+	if (ir->op2 >= REF_FIRST) irt_setmark(IR(ir->op2)->t);
+      }
+      break;
+    }
+  }
+}
+
+/* Mark all instructions referenced by a snapshot. */
+static void sink_mark_snap(jit_State *J, SnapShot *snap)
+{
+  SnapEntry *map = &J->cur.snapmap[snap->mapofs];
+  MSize n, nent = snap->nent;
+  for (n = 0; n < nent; n++) {
+    IRRef ref = snap_ref(map[n]);
+    if (!irref_isk(ref))
+      irt_setmark(IR(ref)->t);
+  }
+}
+
+/* Iteratively remark PHI refs with differing marks or PHI value counts. */
+static void sink_remark_phi(jit_State *J)
+{
+  IRIns *ir;
+  int remark;
+  do {
+    remark = 0;
+    for (ir = IR(J->cur.nins-1); ir->o == IR_PHI; ir--) {
+      IRIns *irl = IR(ir->op1), *irr = IR(ir->op2);
+      if (!((irl->t.irt ^ irr->t.irt) & IRT_MARK) && irl->prev == irr->prev)
+	continue;
+      remark |= (~(irl->t.irt & irr->t.irt) & IRT_MARK);
+      irt_setmark(IR(ir->op1)->t);
+      irt_setmark(IR(ir->op2)->t);
+    }
+  } while (remark);
+}
+
+/* Sweep instructions and tag sunken allocations and stores. */
+static void sink_sweep_ins(jit_State *J)
+{
+  IRIns *ir, *irbase = IR(REF_BASE);
+  for (ir = IR(J->cur.nins-1) ; ir >= irbase; ir--) {
+    switch (ir->o) {
+    case IR_ASTORE: case IR_HSTORE: case IR_FSTORE: case IR_XSTORE: {
+      IRIns *ira = sink_checkalloc(J, ir);
+      if (ira && !irt_ismarked(ira->t)) {
+	int delta = (int)(ir - ira);
+	ir->prev = REGSP(RID_SINK, delta > 255 ? 255 : delta);
+      } else {
+	ir->prev = REGSP_INIT;
+      }
+      break;
+      }
+    case IR_NEWREF:
+      if (!irt_ismarked(IR(ir->op1)->t)) {
+	ir->prev = REGSP(RID_SINK, 0);
+      } else {
+	irt_clearmark(ir->t);
+	ir->prev = REGSP_INIT;
+      }
+      break;
+#if LJ_HASFFI
+    case IR_CNEW: case IR_CNEWI:
+#endif
+    case IR_TNEW: case IR_TDUP:
+      if (!irt_ismarked(ir->t)) {
+	ir->t.irt &= ~IRT_GUARD;
+	ir->prev = REGSP(RID_SINK, 0);
+	J->cur.sinktags = 1;  /* Signal present SINK tags to assembler. */
+      } else {
+	irt_clearmark(ir->t);
+	ir->prev = REGSP_INIT;
+      }
+      break;
+    case IR_PHI: {
+      IRIns *ira = IR(ir->op2);
+      if (!irt_ismarked(ira->t) &&
+	  (ira->o == IR_TNEW || ira->o == IR_TDUP ||
+	   (LJ_HASFFI && (ira->o == IR_CNEW || ira->o == IR_CNEWI)))) {
+	ir->prev = REGSP(RID_SINK, 0);
+      } else {
+	ir->prev = REGSP_INIT;
+      }
+      break;
+      }
+    default:
+      irt_clearmark(ir->t);
+      ir->prev = REGSP_INIT;
+      break;
+    }
+  }
+  for (ir = IR(J->cur.nk); ir < irbase; ir++) {
+    irt_clearmark(ir->t);
+    ir->prev = REGSP_INIT;
+    /* The false-positive of irt_is64() for ASMREF_L (REF_NIL) is OK here. */
+    if (irt_is64(ir->t) && ir->o != IR_KNULL)
+      ir++;
+  }
+}
+
+/* Allocation sinking and store sinking.
+**
+** 1. Mark all non-sinkable allocations.
+** 2. Then sink all remaining allocations and the related stores.
+*/
+void lj_opt_sink(jit_State *J)
+{
+  const uint32_t need = (JIT_F_OPT_SINK|JIT_F_OPT_FWD|
+			 JIT_F_OPT_DCE|JIT_F_OPT_CSE|JIT_F_OPT_FOLD);
+  if ((J->flags & need) == need &&
+      (J->chain[IR_TNEW] || J->chain[IR_TDUP] ||
+       (LJ_HASFFI && (J->chain[IR_CNEW] || J->chain[IR_CNEWI])))) {
+    if (!J->loopref)
+      sink_mark_snap(J, &J->cur.snap[J->cur.nsnap-1]);
+    sink_mark_ins(J);
+    if (J->loopref)
+      sink_remark_phi(J);
+    sink_sweep_ins(J);
+  }
+}
+
+#undef IR
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_opt_split.c b/libs/luajit-cmake/luajit/src/lj_opt_split.c
new file mode 100644
index 0000000..506b981
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_opt_split.c
@@ -0,0 +1,848 @@
+/*
+** SPLIT: Split 64 bit IR instructions into 32 bit IR instructions.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_opt_split_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT && (LJ_SOFTFP32 || (LJ_32 && LJ_HASFFI))
+
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_ircall.h"
+#include "lj_iropt.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+
+/* SPLIT pass:
+**
+** This pass splits up 64 bit IR instructions into multiple 32 bit IR
+** instructions. It's only active for soft-float targets or for 32 bit CPUs
+** which lack native 64 bit integer operations (the FFI is currently the
+** only emitter for 64 bit integer instructions).
+**
+** Splitting the IR in a separate pass keeps each 32 bit IR assembler
+** backend simple. Only a small amount of extra functionality needs to be
+** implemented. This is much easier than adding support for allocating
+** register pairs to each backend (believe me, I tried). A few simple, but
+** important optimizations can be performed by the SPLIT pass, which would
+** be tedious to do in the backend.
+**
+** The basic idea is to replace each 64 bit IR instruction with its 32 bit
+** equivalent plus an extra HIOP instruction. The splitted IR is not passed
+** through FOLD or any other optimizations, so each HIOP is guaranteed to
+** immediately follow it's counterpart. The actual functionality of HIOP is
+** inferred from the previous instruction.
+**
+** The operands of HIOP hold the hiword input references. The output of HIOP
+** is the hiword output reference, which is also used to hold the hiword
+** register or spill slot information. The register allocator treats this
+** instruction independently of any other instruction, which improves code
+** quality compared to using fixed register pairs.
+**
+** It's easier to split up some instructions into two regular 32 bit
+** instructions. E.g. XLOAD is split up into two XLOADs with two different
+** addresses. Obviously 64 bit constants need to be split up into two 32 bit
+** constants, too. Some hiword instructions can be entirely omitted, e.g.
+** when zero-extending a 32 bit value to 64 bits. 64 bit arguments for calls
+** are split up into two 32 bit arguments each.
+**
+** On soft-float targets, floating-point instructions are directly converted
+** to soft-float calls by the SPLIT pass (except for comparisons and MIN/MAX).
+** HIOP for number results has the type IRT_SOFTFP ("sfp" in -jdump).
+**
+** Here's the IR and x64 machine code for 'x.b = x.a + 1' for a struct with
+** two int64_t fields:
+**
+** 0100    p32 ADD    base  +8
+** 0101    i64 XLOAD  0100
+** 0102    i64 ADD    0101  +1
+** 0103    p32 ADD    base  +16
+** 0104    i64 XSTORE 0103  0102
+**
+**         mov rax, [esi+0x8]
+**         add rax, +0x01
+**         mov [esi+0x10], rax
+**
+** Here's the transformed IR and the x86 machine code after the SPLIT pass:
+**
+** 0100    p32 ADD    base  +8
+** 0101    int XLOAD  0100
+** 0102    p32 ADD    base  +12
+** 0103    int XLOAD  0102
+** 0104    int ADD    0101  +1
+** 0105    int HIOP   0103  +0
+** 0106    p32 ADD    base  +16
+** 0107    int XSTORE 0106  0104
+** 0108    int HIOP   0106  0105
+**
+**         mov eax, [esi+0x8]
+**         mov ecx, [esi+0xc]
+**         add eax, +0x01
+**         adc ecx, +0x00
+**         mov [esi+0x10], eax
+**         mov [esi+0x14], ecx
+**
+** You may notice the reassociated hiword address computation, which is
+** later fused into the mov operands by the assembler.
+*/
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)		(&J->cur.ir[(ref)])
+
+/* Directly emit the transformed IR without updating chains etc. */
+static IRRef split_emit(jit_State *J, uint16_t ot, IRRef1 op1, IRRef1 op2)
+{
+  IRRef nref = lj_ir_nextins(J);
+  IRIns *ir = IR(nref);
+  ir->ot = ot;
+  ir->op1 = op1;
+  ir->op2 = op2;
+  return nref;
+}
+
+#if LJ_SOFTFP
+/* Emit a (checked) number to integer conversion. */
+static IRRef split_num2int(jit_State *J, IRRef lo, IRRef hi, int check)
+{
+  IRRef tmp, res;
+#if LJ_LE
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), lo, hi);
+#else
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), hi, lo);
+#endif
+  res = split_emit(J, IRTI(IR_CALLN), tmp, IRCALL_softfp_d2i);
+  if (check) {
+    tmp = split_emit(J, IRTI(IR_CALLN), res, IRCALL_softfp_i2d);
+    split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), tmp, tmp);
+    split_emit(J, IRTGI(IR_EQ), tmp, lo);
+    split_emit(J, IRTG(IR_HIOP, IRT_SOFTFP), tmp+1, hi);
+  }
+  return res;
+}
+
+/* Emit a CALLN with one split 64 bit argument. */
+static IRRef split_call_l(jit_State *J, IRRef1 *hisubst, IRIns *oir,
+			  IRIns *ir, IRCallID id)
+{
+  IRRef tmp, op1 = ir->op1;
+  J->cur.nins--;
+#if LJ_LE
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), oir[op1].prev, hisubst[op1]);
+#else
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), hisubst[op1], oir[op1].prev);
+#endif
+  ir->prev = tmp = split_emit(J, IRTI(IR_CALLN), tmp, id);
+  return split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), tmp, tmp);
+}
+#endif
+
+/* Emit a CALLN with one split 64 bit argument and a 32 bit argument. */
+static IRRef split_call_li(jit_State *J, IRRef1 *hisubst, IRIns *oir,
+			   IRIns *ir, IRCallID id)
+{
+  IRRef tmp, op1 = ir->op1, op2 = ir->op2;
+  J->cur.nins--;
+#if LJ_LE
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), oir[op1].prev, hisubst[op1]);
+#else
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), hisubst[op1], oir[op1].prev);
+#endif
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), tmp, oir[op2].prev);
+  ir->prev = tmp = split_emit(J, IRTI(IR_CALLN), tmp, id);
+  return split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), tmp, tmp);
+}
+
+/* Emit a CALLN with two split 64 bit arguments. */
+static IRRef split_call_ll(jit_State *J, IRRef1 *hisubst, IRIns *oir,
+			   IRIns *ir, IRCallID id)
+{
+  IRRef tmp, op1 = ir->op1, op2 = ir->op2;
+  J->cur.nins--;
+#if LJ_LE
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), oir[op1].prev, hisubst[op1]);
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), tmp, oir[op2].prev);
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), tmp, hisubst[op2]);
+#else
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), hisubst[op1], oir[op1].prev);
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), tmp, hisubst[op2]);
+  tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), tmp, oir[op2].prev);
+#endif
+  ir->prev = tmp = split_emit(J, IRTI(IR_CALLN), tmp, id);
+  return split_emit(J,
+    IRT(IR_HIOP, (LJ_SOFTFP && irt_isnum(ir->t)) ? IRT_SOFTFP : IRT_INT),
+    tmp, tmp);
+}
+
+/* Get a pointer to the other 32 bit word (LE: hiword, BE: loword). */
+static IRRef split_ptr(jit_State *J, IRIns *oir, IRRef ref)
+{
+  IRRef nref = oir[ref].prev;
+  IRIns *ir = IR(nref);
+  int32_t ofs = 4;
+  if (ir->o == IR_KPTR)
+    return lj_ir_kptr(J, (char *)ir_kptr(ir) + ofs);
+  if (ir->o == IR_ADD && irref_isk(ir->op2) && !irt_isphi(oir[ref].t)) {
+    /* Reassociate address. */
+    ofs += IR(ir->op2)->i;
+    nref = ir->op1;
+    if (ofs == 0) return nref;
+  }
+  return split_emit(J, IRT(IR_ADD, IRT_PTR), nref, lj_ir_kint(J, ofs));
+}
+
+#if LJ_HASFFI
+static IRRef split_bitshift(jit_State *J, IRRef1 *hisubst,
+			    IRIns *oir, IRIns *nir, IRIns *ir)
+{
+  IROp op = ir->o;
+  IRRef kref = nir->op2;
+  if (irref_isk(kref)) {  /* Optimize constant shifts. */
+    int32_t k = (IR(kref)->i & 63);
+    IRRef lo = nir->op1, hi = hisubst[ir->op1];
+    if (op == IR_BROL || op == IR_BROR) {
+      if (op == IR_BROR) k = (-k & 63);
+      if (k >= 32) { IRRef t = lo; lo = hi; hi = t; k -= 32; }
+      if (k == 0) {
+      passthrough:
+	J->cur.nins--;
+	ir->prev = lo;
+	return hi;
+      } else {
+	TRef k1, k2;
+	IRRef t1, t2, t3, t4;
+	J->cur.nins--;
+	k1 = lj_ir_kint(J, k);
+	k2 = lj_ir_kint(J, (-k & 31));
+	t1 = split_emit(J, IRTI(IR_BSHL), lo, k1);
+	t2 = split_emit(J, IRTI(IR_BSHL), hi, k1);
+	t3 = split_emit(J, IRTI(IR_BSHR), lo, k2);
+	t4 = split_emit(J, IRTI(IR_BSHR), hi, k2);
+	ir->prev = split_emit(J, IRTI(IR_BOR), t1, t4);
+	return split_emit(J, IRTI(IR_BOR), t2, t3);
+      }
+    } else if (k == 0) {
+      goto passthrough;
+    } else if (k < 32) {
+      if (op == IR_BSHL) {
+	IRRef t1 = split_emit(J, IRTI(IR_BSHL), hi, kref);
+	IRRef t2 = split_emit(J, IRTI(IR_BSHR), lo, lj_ir_kint(J, (-k&31)));
+	return split_emit(J, IRTI(IR_BOR), t1, t2);
+      } else {
+	IRRef t1 = ir->prev, t2;
+	lj_assertJ(op == IR_BSHR || op == IR_BSAR, "bad usage");
+	nir->o = IR_BSHR;
+	t2 = split_emit(J, IRTI(IR_BSHL), hi, lj_ir_kint(J, (-k&31)));
+	ir->prev = split_emit(J, IRTI(IR_BOR), t1, t2);
+	return split_emit(J, IRTI(op), hi, kref);
+      }
+    } else {
+      if (op == IR_BSHL) {
+	if (k == 32)
+	  J->cur.nins--;
+	else
+	  lo = ir->prev;
+	ir->prev = lj_ir_kint(J, 0);
+	return lo;
+      } else {
+	lj_assertJ(op == IR_BSHR || op == IR_BSAR, "bad usage");
+	if (k == 32) {
+	  J->cur.nins--;
+	  ir->prev = hi;
+	} else {
+	  nir->op1 = hi;
+	}
+	if (op == IR_BSHR)
+	  return lj_ir_kint(J, 0);
+	else
+	  return split_emit(J, IRTI(IR_BSAR), hi, lj_ir_kint(J, 31));
+      }
+    }
+  }
+  return split_call_li(J, hisubst, oir, ir,
+		       op - IR_BSHL + IRCALL_lj_carith_shl64);
+}
+
+static IRRef split_bitop(jit_State *J, IRRef1 *hisubst,
+			 IRIns *nir, IRIns *ir)
+{
+  IROp op = ir->o;
+  IRRef hi, kref = nir->op2;
+  if (irref_isk(kref)) {  /* Optimize bit operations with lo constant. */
+    int32_t k = IR(kref)->i;
+    if (k == 0 || k == -1) {
+      if (op == IR_BAND) k = ~k;
+      if (k == 0) {
+	J->cur.nins--;
+	ir->prev = nir->op1;
+      } else if (op == IR_BXOR) {
+	nir->o = IR_BNOT;
+	nir->op2 = 0;
+      } else {
+	J->cur.nins--;
+	ir->prev = kref;
+      }
+    }
+  }
+  hi = hisubst[ir->op1];
+  kref = hisubst[ir->op2];
+  if (irref_isk(kref)) {  /* Optimize bit operations with hi constant. */
+    int32_t k = IR(kref)->i;
+    if (k == 0 || k == -1) {
+      if (op == IR_BAND) k = ~k;
+      if (k == 0) {
+	return hi;
+      } else if (op == IR_BXOR) {
+	return split_emit(J, IRTI(IR_BNOT), hi, 0);
+      } else {
+	return kref;
+      }
+    }
+  }
+  return split_emit(J, IRTI(op), hi, kref);
+}
+#endif
+
+/* Substitute references of a snapshot. */
+static void split_subst_snap(jit_State *J, SnapShot *snap, IRIns *oir)
+{
+  SnapEntry *map = &J->cur.snapmap[snap->mapofs];
+  MSize n, nent = snap->nent;
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    IRIns *ir = &oir[snap_ref(sn)];
+    if (!(LJ_SOFTFP && (sn & SNAP_SOFTFPNUM) && irref_isk(snap_ref(sn))))
+      map[n] = ((sn & 0xffff0000) | ir->prev);
+  }
+}
+
+/* Transform the old IR to the new IR. */
+static void split_ir(jit_State *J)
+{
+  IRRef nins = J->cur.nins, nk = J->cur.nk;
+  MSize irlen = nins - nk;
+  MSize need = (irlen+1)*(sizeof(IRIns) + sizeof(IRRef1));
+  IRIns *oir = (IRIns *)lj_buf_tmp(J->L, need);
+  IRRef1 *hisubst;
+  IRRef ref, snref;
+  SnapShot *snap;
+
+  /* Copy old IR to buffer. */
+  memcpy(oir, IR(nk), irlen*sizeof(IRIns));
+  /* Bias hiword substitution table and old IR. Loword kept in field prev. */
+  hisubst = (IRRef1 *)&oir[irlen] - nk;
+  oir -= nk;
+
+  /* Remove all IR instructions, but retain IR constants. */
+  J->cur.nins = REF_FIRST;
+  J->loopref = 0;
+
+  /* Process constants and fixed references. */
+  for (ref = nk; ref <= REF_BASE; ref++) {
+    IRIns *ir = &oir[ref];
+    if ((LJ_SOFTFP && ir->o == IR_KNUM) || ir->o == IR_KINT64) {
+      /* Split up 64 bit constant. */
+      TValue tv = *ir_k64(ir);
+      ir->prev = lj_ir_kint(J, (int32_t)tv.u32.lo);
+      hisubst[ref] = lj_ir_kint(J, (int32_t)tv.u32.hi);
+    } else {
+      ir->prev = ref;  /* Identity substitution for loword. */
+      hisubst[ref] = 0;
+    }
+    if (irt_is64(ir->t) && ir->o != IR_KNULL)
+      ref++;
+  }
+
+  /* Process old IR instructions. */
+  snap = J->cur.snap;
+  snref = snap->ref;
+  for (ref = REF_FIRST; ref < nins; ref++) {
+    IRIns *ir = &oir[ref];
+    IRRef nref = lj_ir_nextins(J);
+    IRIns *nir = IR(nref);
+    IRRef hi = 0;
+
+    if (ref >= snref) {
+      snap->ref = nref;
+      split_subst_snap(J, snap++, oir);
+      snref = snap < &J->cur.snap[J->cur.nsnap] ? snap->ref : ~(IRRef)0;
+    }
+
+    /* Copy-substitute old instruction to new instruction. */
+    nir->op1 = ir->op1 < nk ? ir->op1 : oir[ir->op1].prev;
+    nir->op2 = ir->op2 < nk ? ir->op2 : oir[ir->op2].prev;
+    ir->prev = nref;  /* Loword substitution. */
+    nir->o = ir->o;
+    nir->t.irt = ir->t.irt & ~(IRT_MARK|IRT_ISPHI);
+    hisubst[ref] = 0;
+
+    /* Split 64 bit instructions. */
+#if LJ_SOFTFP
+    if (irt_isnum(ir->t)) {
+      nir->t.irt = IRT_INT | (nir->t.irt & IRT_GUARD);  /* Turn into INT op. */
+      /* Note: hi ref = lo ref + 1! Required for SNAP_SOFTFPNUM logic. */
+      switch (ir->o) {
+      case IR_ADD:
+	hi = split_call_ll(J, hisubst, oir, ir, IRCALL_softfp_add);
+	break;
+      case IR_SUB:
+	hi = split_call_ll(J, hisubst, oir, ir, IRCALL_softfp_sub);
+	break;
+      case IR_MUL:
+	hi = split_call_ll(J, hisubst, oir, ir, IRCALL_softfp_mul);
+	break;
+      case IR_DIV:
+	hi = split_call_ll(J, hisubst, oir, ir, IRCALL_softfp_div);
+	break;
+      case IR_POW:
+	hi = split_call_ll(J, hisubst, oir, ir, IRCALL_pow);
+	break;
+      case IR_FPMATH:
+	hi = split_call_l(J, hisubst, oir, ir, IRCALL_lj_vm_floor + ir->op2);
+	break;
+      case IR_LDEXP:
+	hi = split_call_li(J, hisubst, oir, ir, IRCALL_ldexp);
+	break;
+      case IR_NEG: case IR_ABS:
+	nir->o = IR_CONV;  /* Pass through loword. */
+	nir->op2 = (IRT_INT << 5) | IRT_INT;
+	hi = split_emit(J, IRT(ir->o == IR_NEG ? IR_BXOR : IR_BAND, IRT_SOFTFP),
+	       hisubst[ir->op1],
+	       lj_ir_kint(J, (int32_t)(0x7fffffffu + (ir->o == IR_NEG))));
+	break;
+      case IR_SLOAD:
+	if ((nir->op2 & IRSLOAD_CONVERT)) {  /* Convert from int to number. */
+	  nir->op2 &= ~IRSLOAD_CONVERT;
+	  ir->prev = nref = split_emit(J, IRTI(IR_CALLN), nref,
+				       IRCALL_softfp_i2d);
+	  hi = split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), nref, nref);
+	  break;
+	}
+	/* fallthrough */
+      case IR_ALOAD: case IR_HLOAD: case IR_ULOAD: case IR_VLOAD:
+      case IR_STRTO:
+	hi = split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), nref, nref);
+	break;
+      case IR_FLOAD:
+	lj_assertJ(ir->op1 == REF_NIL, "expected FLOAD from GG_State");
+	hi = lj_ir_kint(J, *(int32_t*)((char*)J2GG(J) + ir->op2 + LJ_LE*4));
+	nir->op2 += LJ_BE*4;
+	break;
+      case IR_XLOAD: {
+	IRIns inslo = *nir;  /* Save/undo the emit of the lo XLOAD. */
+	J->cur.nins--;
+	hi = split_ptr(J, oir, ir->op1);  /* Insert the hiref ADD. */
+#if LJ_BE
+	hi = split_emit(J, IRT(IR_XLOAD, IRT_INT), hi, ir->op2);
+	inslo.t.irt = IRT_SOFTFP | (inslo.t.irt & IRT_GUARD);
+#endif
+	nref = lj_ir_nextins(J);
+	nir = IR(nref);
+	*nir = inslo;  /* Re-emit lo XLOAD. */
+#if LJ_LE
+	hi = split_emit(J, IRT(IR_XLOAD, IRT_SOFTFP), hi, ir->op2);
+	ir->prev = nref;
+#else
+	ir->prev = hi; hi = nref;
+#endif
+	break;
+	}
+      case IR_ASTORE: case IR_HSTORE: case IR_USTORE: case IR_XSTORE:
+	split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), nir->op1, hisubst[ir->op2]);
+	break;
+      case IR_CONV: {  /* Conversion to number. Others handled below. */
+	IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+	UNUSED(st);
+#if LJ_32 && LJ_HASFFI
+	if (st == IRT_I64 || st == IRT_U64) {
+	  hi = split_call_l(J, hisubst, oir, ir,
+		 st == IRT_I64 ? IRCALL_fp64_l2d : IRCALL_fp64_ul2d);
+	  break;
+	}
+#endif
+	lj_assertJ(st == IRT_INT ||
+		   (LJ_32 && LJ_HASFFI && (st == IRT_U32 || st == IRT_FLOAT)),
+		   "bad source type for CONV");
+	nir->o = IR_CALLN;
+#if LJ_32 && LJ_HASFFI
+	nir->op2 = st == IRT_INT ? IRCALL_softfp_i2d :
+		   st == IRT_FLOAT ? IRCALL_softfp_f2d :
+		   IRCALL_softfp_ui2d;
+#else
+	nir->op2 = IRCALL_softfp_i2d;
+#endif
+	hi = split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), nref, nref);
+	break;
+	}
+      case IR_CALLN:
+      case IR_CALLL:
+      case IR_CALLS:
+      case IR_CALLXS:
+	goto split_call;
+      case IR_PHI:
+	if (nir->op1 == nir->op2)
+	  J->cur.nins--;  /* Drop useless PHIs. */
+	if (hisubst[ir->op1] != hisubst[ir->op2])
+	  split_emit(J, IRT(IR_PHI, IRT_SOFTFP),
+		     hisubst[ir->op1], hisubst[ir->op2]);
+	break;
+      case IR_HIOP:
+	J->cur.nins--;  /* Drop joining HIOP. */
+	ir->prev = nir->op1;
+	hi = nir->op2;
+	break;
+      default:
+	lj_assertJ(ir->o <= IR_NE || ir->o == IR_MIN || ir->o == IR_MAX,
+		   "bad IR op %d", ir->o);
+	hi = split_emit(J, IRTG(IR_HIOP, IRT_SOFTFP),
+			hisubst[ir->op1], hisubst[ir->op2]);
+	break;
+      }
+    } else
+#endif
+#if LJ_32 && LJ_HASFFI
+    if (irt_isint64(ir->t)) {
+      IRRef hiref = hisubst[ir->op1];
+      nir->t.irt = IRT_INT | (nir->t.irt & IRT_GUARD);  /* Turn into INT op. */
+      switch (ir->o) {
+      case IR_ADD:
+      case IR_SUB:
+	/* Use plain op for hiword if loword cannot produce a carry/borrow. */
+	if (irref_isk(nir->op2) && IR(nir->op2)->i == 0) {
+	  ir->prev = nir->op1;  /* Pass through loword. */
+	  nir->op1 = hiref; nir->op2 = hisubst[ir->op2];
+	  hi = nref;
+	  break;
+	}
+	/* fallthrough */
+      case IR_NEG:
+	hi = split_emit(J, IRTI(IR_HIOP), hiref, hisubst[ir->op2]);
+	break;
+      case IR_MUL:
+	hi = split_call_ll(J, hisubst, oir, ir, IRCALL_lj_carith_mul64);
+	break;
+      case IR_DIV:
+	hi = split_call_ll(J, hisubst, oir, ir,
+			   irt_isi64(ir->t) ? IRCALL_lj_carith_divi64 :
+					      IRCALL_lj_carith_divu64);
+	break;
+      case IR_MOD:
+	hi = split_call_ll(J, hisubst, oir, ir,
+			   irt_isi64(ir->t) ? IRCALL_lj_carith_modi64 :
+					      IRCALL_lj_carith_modu64);
+	break;
+      case IR_POW:
+	hi = split_call_ll(J, hisubst, oir, ir,
+			   irt_isi64(ir->t) ? IRCALL_lj_carith_powi64 :
+					      IRCALL_lj_carith_powu64);
+	break;
+      case IR_BNOT:
+	hi = split_emit(J, IRTI(IR_BNOT), hiref, 0);
+	break;
+      case IR_BSWAP:
+	ir->prev = split_emit(J, IRTI(IR_BSWAP), hiref, 0);
+	hi = nref;
+	break;
+      case IR_BAND: case IR_BOR: case IR_BXOR:
+	hi = split_bitop(J, hisubst, nir, ir);
+	break;
+      case IR_BSHL: case IR_BSHR: case IR_BSAR: case IR_BROL: case IR_BROR:
+	hi = split_bitshift(J, hisubst, oir, nir, ir);
+	break;
+      case IR_FLOAD:
+	lj_assertJ(ir->op2 == IRFL_CDATA_INT64, "only INT64 supported");
+	hi = split_emit(J, IRTI(IR_FLOAD), nir->op1, IRFL_CDATA_INT64_4);
+#if LJ_BE
+	ir->prev = hi; hi = nref;
+#endif
+	break;
+      case IR_XLOAD:
+	hi = split_emit(J, IRTI(IR_XLOAD), split_ptr(J, oir, ir->op1), ir->op2);
+#if LJ_BE
+	ir->prev = hi; hi = nref;
+#endif
+	break;
+      case IR_XSTORE:
+	split_emit(J, IRTI(IR_HIOP), nir->op1, hisubst[ir->op2]);
+	break;
+      case IR_CONV: {  /* Conversion to 64 bit integer. Others handled below. */
+	IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+#if LJ_SOFTFP
+	if (st == IRT_NUM) {  /* NUM to 64 bit int conv. */
+	  hi = split_call_l(J, hisubst, oir, ir,
+		 irt_isi64(ir->t) ? IRCALL_fp64_d2l : IRCALL_fp64_d2ul);
+	} else if (st == IRT_FLOAT) {  /* FLOAT to 64 bit int conv. */
+	  nir->o = IR_CALLN;
+	  nir->op2 = irt_isi64(ir->t) ? IRCALL_fp64_f2l : IRCALL_fp64_f2ul;
+	  hi = split_emit(J, IRTI(IR_HIOP), nref, nref);
+	}
+#else
+	if (st == IRT_NUM || st == IRT_FLOAT) {  /* FP to 64 bit int conv. */
+	  hi = split_emit(J, IRTI(IR_HIOP), nir->op1, nref);
+	}
+#endif
+	else if (st == IRT_I64 || st == IRT_U64) {  /* 64/64 bit cast. */
+	  /* Drop cast, since assembler doesn't care. But fwd both parts. */
+	  hi = hiref;
+	  goto fwdlo;
+	} else if ((ir->op2 & IRCONV_SEXT)) {  /* Sign-extend to 64 bit. */
+	  IRRef k31 = lj_ir_kint(J, 31);
+	  nir = IR(nref);  /* May have been reallocated. */
+	  ir->prev = nir->op1;  /* Pass through loword. */
+	  nir->o = IR_BSAR;  /* hi = bsar(lo, 31). */
+	  nir->op2 = k31;
+	  hi = nref;
+	} else {  /* Zero-extend to 64 bit. */
+	  hi = lj_ir_kint(J, 0);
+	  goto fwdlo;
+	}
+	break;
+	}
+      case IR_CALLXS:
+	goto split_call;
+      case IR_PHI: {
+	IRRef hiref2;
+	if ((irref_isk(nir->op1) && irref_isk(nir->op2)) ||
+	    nir->op1 == nir->op2)
+	  J->cur.nins--;  /* Drop useless PHIs. */
+	hiref2 = hisubst[ir->op2];
+	if (!((irref_isk(hiref) && irref_isk(hiref2)) || hiref == hiref2))
+	  split_emit(J, IRTI(IR_PHI), hiref, hiref2);
+	break;
+	}
+      case IR_HIOP:
+	J->cur.nins--;  /* Drop joining HIOP. */
+	ir->prev = nir->op1;
+	hi = nir->op2;
+	break;
+      default:
+	lj_assertJ(ir->o <= IR_NE, "bad IR op %d", ir->o);  /* Comparisons. */
+	split_emit(J, IRTGI(IR_HIOP), hiref, hisubst[ir->op2]);
+	break;
+      }
+    } else
+#endif
+#if LJ_SOFTFP
+    if (ir->o == IR_SLOAD) {
+      if ((nir->op2 & IRSLOAD_CONVERT)) {  /* Convert from number to int. */
+	nir->op2 &= ~IRSLOAD_CONVERT;
+	if (!(nir->op2 & IRSLOAD_TYPECHECK))
+	  nir->t.irt = IRT_INT;  /* Drop guard. */
+	split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), nref, nref);
+	ir->prev = split_num2int(J, nref, nref+1, irt_isguard(ir->t));
+      }
+    } else if (ir->o == IR_TOBIT) {
+      IRRef tmp, op1 = ir->op1;
+      J->cur.nins--;
+#if LJ_LE
+      tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), oir[op1].prev, hisubst[op1]);
+#else
+      tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), hisubst[op1], oir[op1].prev);
+#endif
+      ir->prev = split_emit(J, IRTI(IR_CALLN), tmp, IRCALL_lj_vm_tobit);
+    } else if (ir->o == IR_TOSTR || ir->o == IR_TMPREF) {
+      if (hisubst[ir->op1]) {
+	if (irref_isk(ir->op1))
+	  nir->op1 = ir->op1;
+	else
+	  split_emit(J, IRT(IR_HIOP, IRT_NIL), hisubst[ir->op1], nref);
+      }
+    } else if (ir->o == IR_HREF || ir->o == IR_NEWREF) {
+      if (irref_isk(ir->op2) && hisubst[ir->op2])
+	nir->op2 = ir->op2;
+    } else
+#endif
+    if (ir->o == IR_CONV) {  /* See above, too. */
+      IRType st = (IRType)(ir->op2 & IRCONV_SRCMASK);
+#if LJ_32 && LJ_HASFFI
+      if (st == IRT_I64 || st == IRT_U64) {  /* Conversion from 64 bit int. */
+#if LJ_SOFTFP
+	if (irt_isfloat(ir->t)) {
+	  split_call_l(J, hisubst, oir, ir,
+		       st == IRT_I64 ? IRCALL_fp64_l2f : IRCALL_fp64_ul2f);
+	  J->cur.nins--;  /* Drop unused HIOP. */
+	}
+#else
+	if (irt_isfp(ir->t)) {  /* 64 bit integer to FP conversion. */
+	  ir->prev = split_emit(J, IRT(IR_HIOP, irt_type(ir->t)),
+				hisubst[ir->op1], nref);
+	}
+#endif
+	else {  /* Truncate to lower 32 bits. */
+	fwdlo:
+	  ir->prev = nir->op1;  /* Forward loword. */
+	  /* Replace with NOP to avoid messing up the snapshot logic. */
+	  nir->ot = IRT(IR_NOP, IRT_NIL);
+	  nir->op1 = nir->op2 = 0;
+	}
+      }
+#endif
+#if LJ_SOFTFP && LJ_32 && LJ_HASFFI
+      else if (irt_isfloat(ir->t)) {
+	if (st == IRT_NUM) {
+	  split_call_l(J, hisubst, oir, ir, IRCALL_softfp_d2f);
+	  J->cur.nins--;  /* Drop unused HIOP. */
+	} else {
+	  nir->o = IR_CALLN;
+	  nir->op2 = st == IRT_INT ? IRCALL_softfp_i2f : IRCALL_softfp_ui2f;
+	}
+      } else if (st == IRT_FLOAT) {
+	nir->o = IR_CALLN;
+	nir->op2 = irt_isint(ir->t) ? IRCALL_softfp_f2i : IRCALL_softfp_f2ui;
+      } else
+#endif
+#if LJ_SOFTFP
+      if (st == IRT_NUM || (LJ_32 && LJ_HASFFI && st == IRT_FLOAT)) {
+	if (irt_isguard(ir->t)) {
+	  lj_assertJ(st == IRT_NUM && irt_isint(ir->t), "bad CONV types");
+	  J->cur.nins--;
+	  ir->prev = split_num2int(J, nir->op1, hisubst[ir->op1], 1);
+	} else {
+	  split_call_l(J, hisubst, oir, ir,
+#if LJ_32 && LJ_HASFFI
+	    st == IRT_NUM ?
+	      (irt_isint(ir->t) ? IRCALL_softfp_d2i : IRCALL_softfp_d2ui) :
+	      (irt_isint(ir->t) ? IRCALL_softfp_f2i : IRCALL_softfp_f2ui)
+#else
+	    IRCALL_softfp_d2i
+#endif
+	  );
+	  J->cur.nins--;  /* Drop unused HIOP. */
+	}
+      }
+#endif
+    } else if (ir->o == IR_CALLXS) {
+      IRRef hiref;
+    split_call:
+      hiref = hisubst[ir->op1];
+      if (hiref) {
+	IROpT ot = nir->ot;
+	IRRef op2 = nir->op2;
+	nir->ot = IRT(IR_CARG, IRT_NIL);
+#if LJ_LE
+	nir->op2 = hiref;
+#else
+	nir->op2 = nir->op1; nir->op1 = hiref;
+#endif
+	ir->prev = nref = split_emit(J, ot, nref, op2);
+      }
+      if (LJ_SOFTFP ? irt_is64(ir->t) : irt_isint64(ir->t))
+	hi = split_emit(J,
+	  IRT(IR_HIOP, (LJ_SOFTFP && irt_isnum(ir->t)) ? IRT_SOFTFP : IRT_INT),
+	  nref, nref);
+    } else if (ir->o == IR_CARG) {
+      IRRef hiref = hisubst[ir->op1];
+      if (hiref) {
+	IRRef op2 = nir->op2;
+#if LJ_LE
+	nir->op2 = hiref;
+#else
+	nir->op2 = nir->op1; nir->op1 = hiref;
+#endif
+	ir->prev = nref = split_emit(J, IRT(IR_CARG, IRT_NIL), nref, op2);
+	nir = IR(nref);
+      }
+      hiref = hisubst[ir->op2];
+      if (hiref) {
+#if !LJ_TARGET_X86
+	int carg = 0;
+	IRIns *cir;
+	for (cir = IR(nir->op1); cir->o == IR_CARG; cir = IR(cir->op1))
+	  carg++;
+	if ((carg & 1) == 0) {  /* Align 64 bit arguments. */
+	  IRRef op2 = nir->op2;
+	  nir->op2 = REF_NIL;
+	  nref = split_emit(J, IRT(IR_CARG, IRT_NIL), nref, op2);
+	  nir = IR(nref);
+	}
+#endif
+#if LJ_BE
+	{ IRRef tmp = nir->op2; nir->op2 = hiref; hiref = tmp; }
+#endif
+	ir->prev = split_emit(J, IRT(IR_CARG, IRT_NIL), nref, hiref);
+      }
+    } else if (ir->o == IR_CNEWI) {
+      if (hisubst[ir->op2])
+	split_emit(J, IRT(IR_HIOP, IRT_NIL), nref, hisubst[ir->op2]);
+    } else if (ir->o == IR_LOOP) {
+      J->loopref = nref;  /* Needed by assembler. */
+    }
+    hisubst[ref] = hi;  /* Store hiword substitution. */
+  }
+  if (snref == nins) {  /* Substitution for last snapshot. */
+    snap->ref = J->cur.nins;
+    split_subst_snap(J, snap, oir);
+  }
+
+  /* Add PHI marks. */
+  for (ref = J->cur.nins-1; ref >= REF_FIRST; ref--) {
+    IRIns *ir = IR(ref);
+    if (ir->o != IR_PHI) break;
+    if (!irref_isk(ir->op1)) irt_setphi(IR(ir->op1)->t);
+    if (ir->op2 > J->loopref) irt_setphi(IR(ir->op2)->t);
+  }
+}
+
+/* Protected callback for split pass. */
+static TValue *cpsplit(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  jit_State *J = (jit_State *)ud;
+  split_ir(J);
+  UNUSED(L); UNUSED(dummy);
+  return NULL;
+}
+
+#if defined(LUA_USE_ASSERT) || LJ_SOFTFP
+/* Slow, but sure way to check whether a SPLIT pass is needed. */
+static int split_needsplit(jit_State *J)
+{
+  IRIns *ir, *irend;
+  IRRef ref;
+  for (ir = IR(REF_FIRST), irend = IR(J->cur.nins); ir < irend; ir++)
+    if (LJ_SOFTFP ? irt_is64orfp(ir->t) : irt_isint64(ir->t))
+      return 1;
+  if (LJ_SOFTFP) {
+    for (ref = J->chain[IR_SLOAD]; ref; ref = IR(ref)->prev)
+      if ((IR(ref)->op2 & IRSLOAD_CONVERT))
+	return 1;
+    if (J->chain[IR_TOBIT])
+      return 1;
+  }
+  for (ref = J->chain[IR_CONV]; ref; ref = IR(ref)->prev) {
+    IRType st = (IR(ref)->op2 & IRCONV_SRCMASK);
+    if ((LJ_SOFTFP && (st == IRT_NUM || st == IRT_FLOAT)) ||
+	st == IRT_I64 || st == IRT_U64)
+      return 1;
+  }
+  return 0;  /* Nope. */
+}
+#endif
+
+/* SPLIT pass. */
+void lj_opt_split(jit_State *J)
+{
+#if LJ_SOFTFP
+  if (!J->needsplit)
+    J->needsplit = split_needsplit(J);
+#else
+  lj_assertJ(J->needsplit >= split_needsplit(J), "bad SPLIT state");
+#endif
+  if (J->needsplit) {
+    int errcode = lj_vm_cpcall(J->L, NULL, J, cpsplit);
+    if (errcode) {
+      /* Completely reset the trace to avoid inconsistent dump on abort. */
+      J->cur.nins = J->cur.nk = REF_BASE;
+      J->cur.nsnap = 0;
+      lj_err_throw(J->L, errcode);  /* Propagate errors. */
+    }
+  }
+}
+
+#undef IR
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_parse.c b/libs/luajit-cmake/luajit/src/lj_parse.c
new file mode 100644
index 0000000..9ddf60e
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_parse.c
@@ -0,0 +1,2747 @@
+/*
+** Lua parser (source code -> bytecode).
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_parse_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_func.h"
+#include "lj_state.h"
+#include "lj_bc.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#endif
+#include "lj_strfmt.h"
+#include "lj_lex.h"
+#include "lj_parse.h"
+#include "lj_vm.h"
+#include "lj_vmevent.h"
+
+/* -- Parser structures and definitions ----------------------------------- */
+
+/* Expression kinds. */
+typedef enum {
+  /* Constant expressions must be first and in this order: */
+  VKNIL,
+  VKFALSE,
+  VKTRUE,
+  VKSTR,	/* sval = string value */
+  VKNUM,	/* nval = number value */
+  VKLAST = VKNUM,
+  VKCDATA,	/* nval = cdata value, not treated as a constant expression */
+  /* Non-constant expressions follow: */
+  VLOCAL,	/* info = local register, aux = vstack index */
+  VUPVAL,	/* info = upvalue index, aux = vstack index */
+  VGLOBAL,	/* sval = string value */
+  VINDEXED,	/* info = table register, aux = index reg/byte/string const */
+  VJMP,		/* info = instruction PC */
+  VRELOCABLE,	/* info = instruction PC */
+  VNONRELOC,	/* info = result register */
+  VCALL,	/* info = instruction PC, aux = base */
+  VVOID
+} ExpKind;
+
+/* Expression descriptor. */
+typedef struct ExpDesc {
+  union {
+    struct {
+      uint32_t info;	/* Primary info. */
+      uint32_t aux;	/* Secondary info. */
+    } s;
+    TValue nval;	/* Number value. */
+    GCstr *sval;	/* String value. */
+  } u;
+  ExpKind k;
+  BCPos t;		/* True condition jump list. */
+  BCPos f;		/* False condition jump list. */
+} ExpDesc;
+
+/* Macros for expressions. */
+#define expr_hasjump(e)		((e)->t != (e)->f)
+
+#define expr_isk(e)		((e)->k <= VKLAST)
+#define expr_isk_nojump(e)	(expr_isk(e) && !expr_hasjump(e))
+#define expr_isnumk(e)		((e)->k == VKNUM)
+#define expr_isnumk_nojump(e)	(expr_isnumk(e) && !expr_hasjump(e))
+#define expr_isstrk(e)		((e)->k == VKSTR)
+
+#define expr_numtv(e)		check_exp(expr_isnumk((e)), &(e)->u.nval)
+#define expr_numberV(e)		numberVnum(expr_numtv((e)))
+
+/* Initialize expression. */
+static LJ_AINLINE void expr_init(ExpDesc *e, ExpKind k, uint32_t info)
+{
+  e->k = k;
+  e->u.s.info = info;
+  e->f = e->t = NO_JMP;
+}
+
+/* Check number constant for +-0. */
+static int expr_numiszero(ExpDesc *e)
+{
+  TValue *o = expr_numtv(e);
+  return tvisint(o) ? (intV(o) == 0) : tviszero(o);
+}
+
+/* Per-function linked list of scope blocks. */
+typedef struct FuncScope {
+  struct FuncScope *prev;	/* Link to outer scope. */
+  MSize vstart;			/* Start of block-local variables. */
+  uint8_t nactvar;		/* Number of active vars outside the scope. */
+  uint8_t flags;		/* Scope flags. */
+} FuncScope;
+
+#define FSCOPE_LOOP		0x01	/* Scope is a (breakable) loop. */
+#define FSCOPE_BREAK		0x02	/* Break used in scope. */
+#define FSCOPE_GOLA		0x04	/* Goto or label used in scope. */
+#define FSCOPE_UPVAL		0x08	/* Upvalue in scope. */
+#define FSCOPE_NOCLOSE		0x10	/* Do not close upvalues. */
+
+#define NAME_BREAK		((GCstr *)(uintptr_t)1)
+
+/* Index into variable stack. */
+typedef uint16_t VarIndex;
+#define LJ_MAX_VSTACK		(65536 - LJ_MAX_UPVAL)
+
+/* Variable/goto/label info. */
+#define VSTACK_VAR_RW		0x01	/* R/W variable. */
+#define VSTACK_GOTO		0x02	/* Pending goto. */
+#define VSTACK_LABEL		0x04	/* Label. */
+
+/* Per-function state. */
+typedef struct FuncState {
+  GCtab *kt;			/* Hash table for constants. */
+  LexState *ls;			/* Lexer state. */
+  lua_State *L;			/* Lua state. */
+  FuncScope *bl;		/* Current scope. */
+  struct FuncState *prev;	/* Enclosing function. */
+  BCPos pc;			/* Next bytecode position. */
+  BCPos lasttarget;		/* Bytecode position of last jump target. */
+  BCPos jpc;			/* Pending jump list to next bytecode. */
+  BCReg freereg;		/* First free register. */
+  BCReg nactvar;		/* Number of active local variables. */
+  BCReg nkn, nkgc;		/* Number of lua_Number/GCobj constants */
+  BCLine linedefined;		/* First line of the function definition. */
+  BCInsLine *bcbase;		/* Base of bytecode stack. */
+  BCPos bclim;			/* Limit of bytecode stack. */
+  MSize vbase;			/* Base of variable stack for this function. */
+  uint8_t flags;		/* Prototype flags. */
+  uint8_t numparams;		/* Number of parameters. */
+  uint8_t framesize;		/* Fixed frame size. */
+  uint8_t nuv;			/* Number of upvalues */
+  VarIndex varmap[LJ_MAX_LOCVAR];  /* Map from register to variable idx. */
+  VarIndex uvmap[LJ_MAX_UPVAL];	/* Map from upvalue to variable idx. */
+  VarIndex uvtmp[LJ_MAX_UPVAL];	/* Temporary upvalue map. */
+} FuncState;
+
+/* Binary and unary operators. ORDER OPR */
+typedef enum BinOpr {
+  OPR_ADD, OPR_SUB, OPR_MUL, OPR_DIV, OPR_MOD, OPR_POW,  /* ORDER ARITH */
+  OPR_CONCAT,
+  OPR_NE, OPR_EQ,
+  OPR_LT, OPR_GE, OPR_LE, OPR_GT,
+  OPR_AND, OPR_OR,
+  OPR_NOBINOPR
+} BinOpr;
+
+LJ_STATIC_ASSERT((int)BC_ISGE-(int)BC_ISLT == (int)OPR_GE-(int)OPR_LT);
+LJ_STATIC_ASSERT((int)BC_ISLE-(int)BC_ISLT == (int)OPR_LE-(int)OPR_LT);
+LJ_STATIC_ASSERT((int)BC_ISGT-(int)BC_ISLT == (int)OPR_GT-(int)OPR_LT);
+LJ_STATIC_ASSERT((int)BC_SUBVV-(int)BC_ADDVV == (int)OPR_SUB-(int)OPR_ADD);
+LJ_STATIC_ASSERT((int)BC_MULVV-(int)BC_ADDVV == (int)OPR_MUL-(int)OPR_ADD);
+LJ_STATIC_ASSERT((int)BC_DIVVV-(int)BC_ADDVV == (int)OPR_DIV-(int)OPR_ADD);
+LJ_STATIC_ASSERT((int)BC_MODVV-(int)BC_ADDVV == (int)OPR_MOD-(int)OPR_ADD);
+
+#ifdef LUA_USE_ASSERT
+#define lj_assertFS(c, ...)	(lj_assertG_(G(fs->L), (c), __VA_ARGS__))
+#else
+#define lj_assertFS(c, ...)	((void)fs)
+#endif
+
+/* -- Error handling ------------------------------------------------------ */
+
+LJ_NORET LJ_NOINLINE static void err_syntax(LexState *ls, ErrMsg em)
+{
+  lj_lex_error(ls, ls->tok, em);
+}
+
+LJ_NORET LJ_NOINLINE static void err_token(LexState *ls, LexToken tok)
+{
+  lj_lex_error(ls, ls->tok, LJ_ERR_XTOKEN, lj_lex_token2str(ls, tok));
+}
+
+LJ_NORET static void err_limit(FuncState *fs, uint32_t limit, const char *what)
+{
+  if (fs->linedefined == 0)
+    lj_lex_error(fs->ls, 0, LJ_ERR_XLIMM, limit, what);
+  else
+    lj_lex_error(fs->ls, 0, LJ_ERR_XLIMF, fs->linedefined, limit, what);
+}
+
+#define checklimit(fs, v, l, m)		if ((v) >= (l)) err_limit(fs, l, m)
+#define checklimitgt(fs, v, l, m)	if ((v) > (l)) err_limit(fs, l, m)
+#define checkcond(ls, c, em)		{ if (!(c)) err_syntax(ls, em); }
+
+/* -- Management of constants --------------------------------------------- */
+
+/* Return bytecode encoding for primitive constant. */
+#define const_pri(e)		check_exp((e)->k <= VKTRUE, (e)->k)
+
+#define tvhaskslot(o)	((o)->u32.hi == 0)
+#define tvkslot(o)	((o)->u32.lo)
+
+/* Add a number constant. */
+static BCReg const_num(FuncState *fs, ExpDesc *e)
+{
+  lua_State *L = fs->L;
+  TValue *o;
+  lj_assertFS(expr_isnumk(e), "bad usage");
+  o = lj_tab_set(L, fs->kt, &e->u.nval);
+  if (tvhaskslot(o))
+    return tvkslot(o);
+  o->u64 = fs->nkn;
+  return fs->nkn++;
+}
+
+/* Add a GC object constant. */
+static BCReg const_gc(FuncState *fs, GCobj *gc, uint32_t itype)
+{
+  lua_State *L = fs->L;
+  TValue key, *o;
+  setgcV(L, &key, gc, itype);
+  /* NOBARRIER: the key is new or kept alive. */
+  o = lj_tab_set(L, fs->kt, &key);
+  if (tvhaskslot(o))
+    return tvkslot(o);
+  o->u64 = fs->nkgc;
+  return fs->nkgc++;
+}
+
+/* Add a string constant. */
+static BCReg const_str(FuncState *fs, ExpDesc *e)
+{
+  lj_assertFS(expr_isstrk(e) || e->k == VGLOBAL, "bad usage");
+  return const_gc(fs, obj2gco(e->u.sval), LJ_TSTR);
+}
+
+/* Anchor string constant to avoid GC. */
+GCstr *lj_parse_keepstr(LexState *ls, const char *str, size_t len)
+{
+  /* NOBARRIER: the key is new or kept alive. */
+  lua_State *L = ls->L;
+  GCstr *s = lj_str_new(L, str, len);
+  TValue *tv = lj_tab_setstr(L, ls->fs->kt, s);
+  if (tvisnil(tv)) setboolV(tv, 1);
+  lj_gc_check(L);
+  return s;
+}
+
+#if LJ_HASFFI
+/* Anchor cdata to avoid GC. */
+void lj_parse_keepcdata(LexState *ls, TValue *tv, GCcdata *cd)
+{
+  /* NOBARRIER: the key is new or kept alive. */
+  lua_State *L = ls->L;
+  setcdataV(L, tv, cd);
+  setboolV(lj_tab_set(L, ls->fs->kt, tv), 1);
+}
+#endif
+
+/* -- Jump list handling -------------------------------------------------- */
+
+/* Get next element in jump list. */
+static BCPos jmp_next(FuncState *fs, BCPos pc)
+{
+  ptrdiff_t delta = bc_j(fs->bcbase[pc].ins);
+  if ((BCPos)delta == NO_JMP)
+    return NO_JMP;
+  else
+    return (BCPos)(((ptrdiff_t)pc+1)+delta);
+}
+
+/* Check if any of the instructions on the jump list produce no value. */
+static int jmp_novalue(FuncState *fs, BCPos list)
+{
+  for (; list != NO_JMP; list = jmp_next(fs, list)) {
+    BCIns p = fs->bcbase[list >= 1 ? list-1 : list].ins;
+    if (!(bc_op(p) == BC_ISTC || bc_op(p) == BC_ISFC || bc_a(p) == NO_REG))
+      return 1;
+  }
+  return 0;
+}
+
+/* Patch register of test instructions. */
+static int jmp_patchtestreg(FuncState *fs, BCPos pc, BCReg reg)
+{
+  BCInsLine *ilp = &fs->bcbase[pc >= 1 ? pc-1 : pc];
+  BCOp op = bc_op(ilp->ins);
+  if (op == BC_ISTC || op == BC_ISFC) {
+    if (reg != NO_REG && reg != bc_d(ilp->ins)) {
+      setbc_a(&ilp->ins, reg);
+    } else {  /* Nothing to store or already in the right register. */
+      setbc_op(&ilp->ins, op+(BC_IST-BC_ISTC));
+      setbc_a(&ilp->ins, 0);
+    }
+  } else if (bc_a(ilp->ins) == NO_REG) {
+    if (reg == NO_REG) {
+      ilp->ins = BCINS_AJ(BC_JMP, bc_a(fs->bcbase[pc].ins), 0);
+    } else {
+      setbc_a(&ilp->ins, reg);
+      if (reg >= bc_a(ilp[1].ins))
+	setbc_a(&ilp[1].ins, reg+1);
+    }
+  } else {
+    return 0;  /* Cannot patch other instructions. */
+  }
+  return 1;
+}
+
+/* Drop values for all instructions on jump list. */
+static void jmp_dropval(FuncState *fs, BCPos list)
+{
+  for (; list != NO_JMP; list = jmp_next(fs, list))
+    jmp_patchtestreg(fs, list, NO_REG);
+}
+
+/* Patch jump instruction to target. */
+static void jmp_patchins(FuncState *fs, BCPos pc, BCPos dest)
+{
+  BCIns *jmp = &fs->bcbase[pc].ins;
+  BCPos offset = dest-(pc+1)+BCBIAS_J;
+  lj_assertFS(dest != NO_JMP, "uninitialized jump target");
+  if (offset > BCMAX_D)
+    err_syntax(fs->ls, LJ_ERR_XJUMP);
+  setbc_d(jmp, offset);
+}
+
+/* Append to jump list. */
+static void jmp_append(FuncState *fs, BCPos *l1, BCPos l2)
+{
+  if (l2 == NO_JMP) {
+    return;
+  } else if (*l1 == NO_JMP) {
+    *l1 = l2;
+  } else {
+    BCPos list = *l1;
+    BCPos next;
+    while ((next = jmp_next(fs, list)) != NO_JMP)  /* Find last element. */
+      list = next;
+    jmp_patchins(fs, list, l2);
+  }
+}
+
+/* Patch jump list and preserve produced values. */
+static void jmp_patchval(FuncState *fs, BCPos list, BCPos vtarget,
+			 BCReg reg, BCPos dtarget)
+{
+  while (list != NO_JMP) {
+    BCPos next = jmp_next(fs, list);
+    if (jmp_patchtestreg(fs, list, reg))
+      jmp_patchins(fs, list, vtarget);  /* Jump to target with value. */
+    else
+      jmp_patchins(fs, list, dtarget);  /* Jump to default target. */
+    list = next;
+  }
+}
+
+/* Jump to following instruction. Append to list of pending jumps. */
+static void jmp_tohere(FuncState *fs, BCPos list)
+{
+  fs->lasttarget = fs->pc;
+  jmp_append(fs, &fs->jpc, list);
+}
+
+/* Patch jump list to target. */
+static void jmp_patch(FuncState *fs, BCPos list, BCPos target)
+{
+  if (target == fs->pc) {
+    jmp_tohere(fs, list);
+  } else {
+    lj_assertFS(target < fs->pc, "bad jump target");
+    jmp_patchval(fs, list, target, NO_REG, target);
+  }
+}
+
+/* -- Bytecode register allocator ----------------------------------------- */
+
+/* Bump frame size. */
+static void bcreg_bump(FuncState *fs, BCReg n)
+{
+  BCReg sz = fs->freereg + n;
+  if (sz > fs->framesize) {
+    if (sz >= LJ_MAX_SLOTS)
+      err_syntax(fs->ls, LJ_ERR_XSLOTS);
+    fs->framesize = (uint8_t)sz;
+  }
+}
+
+/* Reserve registers. */
+static void bcreg_reserve(FuncState *fs, BCReg n)
+{
+  bcreg_bump(fs, n);
+  fs->freereg += n;
+}
+
+/* Free register. */
+static void bcreg_free(FuncState *fs, BCReg reg)
+{
+  if (reg >= fs->nactvar) {
+    fs->freereg--;
+    lj_assertFS(reg == fs->freereg, "bad regfree");
+  }
+}
+
+/* Free register for expression. */
+static void expr_free(FuncState *fs, ExpDesc *e)
+{
+  if (e->k == VNONRELOC)
+    bcreg_free(fs, e->u.s.info);
+}
+
+/* -- Bytecode emitter ---------------------------------------------------- */
+
+/* Emit bytecode instruction. */
+static BCPos bcemit_INS(FuncState *fs, BCIns ins)
+{
+  BCPos pc = fs->pc;
+  LexState *ls = fs->ls;
+  jmp_patchval(fs, fs->jpc, pc, NO_REG, pc);
+  fs->jpc = NO_JMP;
+  if (LJ_UNLIKELY(pc >= fs->bclim)) {
+    ptrdiff_t base = fs->bcbase - ls->bcstack;
+    checklimit(fs, ls->sizebcstack, LJ_MAX_BCINS, "bytecode instructions");
+    lj_mem_growvec(fs->L, ls->bcstack, ls->sizebcstack, LJ_MAX_BCINS,BCInsLine);
+    fs->bclim = (BCPos)(ls->sizebcstack - base);
+    fs->bcbase = ls->bcstack + base;
+  }
+  fs->bcbase[pc].ins = ins;
+  fs->bcbase[pc].line = ls->lastline;
+  fs->pc = pc+1;
+  return pc;
+}
+
+#define bcemit_ABC(fs, o, a, b, c)	bcemit_INS(fs, BCINS_ABC(o, a, b, c))
+#define bcemit_AD(fs, o, a, d)		bcemit_INS(fs, BCINS_AD(o, a, d))
+#define bcemit_AJ(fs, o, a, j)		bcemit_INS(fs, BCINS_AJ(o, a, j))
+
+#define bcptr(fs, e)			(&(fs)->bcbase[(e)->u.s.info].ins)
+
+/* -- Bytecode emitter for expressions ------------------------------------ */
+
+/* Discharge non-constant expression to any register. */
+static void expr_discharge(FuncState *fs, ExpDesc *e)
+{
+  BCIns ins;
+  if (e->k == VUPVAL) {
+    ins = BCINS_AD(BC_UGET, 0, e->u.s.info);
+  } else if (e->k == VGLOBAL) {
+    ins = BCINS_AD(BC_GGET, 0, const_str(fs, e));
+  } else if (e->k == VINDEXED) {
+    BCReg rc = e->u.s.aux;
+    if ((int32_t)rc < 0) {
+      ins = BCINS_ABC(BC_TGETS, 0, e->u.s.info, ~rc);
+    } else if (rc > BCMAX_C) {
+      ins = BCINS_ABC(BC_TGETB, 0, e->u.s.info, rc-(BCMAX_C+1));
+    } else {
+      bcreg_free(fs, rc);
+      ins = BCINS_ABC(BC_TGETV, 0, e->u.s.info, rc);
+    }
+    bcreg_free(fs, e->u.s.info);
+  } else if (e->k == VCALL) {
+    e->u.s.info = e->u.s.aux;
+    e->k = VNONRELOC;
+    return;
+  } else if (e->k == VLOCAL) {
+    e->k = VNONRELOC;
+    return;
+  } else {
+    return;
+  }
+  e->u.s.info = bcemit_INS(fs, ins);
+  e->k = VRELOCABLE;
+}
+
+/* Emit bytecode to set a range of registers to nil. */
+static void bcemit_nil(FuncState *fs, BCReg from, BCReg n)
+{
+  if (fs->pc > fs->lasttarget) {  /* No jumps to current position? */
+    BCIns *ip = &fs->bcbase[fs->pc-1].ins;
+    BCReg pto, pfrom = bc_a(*ip);
+    switch (bc_op(*ip)) {  /* Try to merge with the previous instruction. */
+    case BC_KPRI:
+      if (bc_d(*ip) != ~LJ_TNIL) break;
+      if (from == pfrom) {
+	if (n == 1) return;
+      } else if (from == pfrom+1) {
+	from = pfrom;
+	n++;
+      } else {
+	break;
+      }
+      *ip = BCINS_AD(BC_KNIL, from, from+n-1);  /* Replace KPRI. */
+      return;
+    case BC_KNIL:
+      pto = bc_d(*ip);
+      if (pfrom <= from && from <= pto+1) {  /* Can we connect both ranges? */
+	if (from+n-1 > pto)
+	  setbc_d(ip, from+n-1);  /* Patch previous instruction range. */
+	return;
+      }
+      break;
+    default:
+      break;
+    }
+  }
+  /* Emit new instruction or replace old instruction. */
+  bcemit_INS(fs, n == 1 ? BCINS_AD(BC_KPRI, from, VKNIL) :
+			  BCINS_AD(BC_KNIL, from, from+n-1));
+}
+
+/* Discharge an expression to a specific register. Ignore branches. */
+static void expr_toreg_nobranch(FuncState *fs, ExpDesc *e, BCReg reg)
+{
+  BCIns ins;
+  expr_discharge(fs, e);
+  if (e->k == VKSTR) {
+    ins = BCINS_AD(BC_KSTR, reg, const_str(fs, e));
+  } else if (e->k == VKNUM) {
+#if LJ_DUALNUM
+    cTValue *tv = expr_numtv(e);
+    if (tvisint(tv) && checki16(intV(tv)))
+      ins = BCINS_AD(BC_KSHORT, reg, (BCReg)(uint16_t)intV(tv));
+    else
+#else
+    lua_Number n = expr_numberV(e);
+    int32_t k = lj_num2int(n);
+    if (checki16(k) && n == (lua_Number)k)
+      ins = BCINS_AD(BC_KSHORT, reg, (BCReg)(uint16_t)k);
+    else
+#endif
+      ins = BCINS_AD(BC_KNUM, reg, const_num(fs, e));
+#if LJ_HASFFI
+  } else if (e->k == VKCDATA) {
+    fs->flags |= PROTO_FFI;
+    ins = BCINS_AD(BC_KCDATA, reg,
+		   const_gc(fs, obj2gco(cdataV(&e->u.nval)), LJ_TCDATA));
+#endif
+  } else if (e->k == VRELOCABLE) {
+    setbc_a(bcptr(fs, e), reg);
+    goto noins;
+  } else if (e->k == VNONRELOC) {
+    if (reg == e->u.s.info)
+      goto noins;
+    ins = BCINS_AD(BC_MOV, reg, e->u.s.info);
+  } else if (e->k == VKNIL) {
+    bcemit_nil(fs, reg, 1);
+    goto noins;
+  } else if (e->k <= VKTRUE) {
+    ins = BCINS_AD(BC_KPRI, reg, const_pri(e));
+  } else {
+    lj_assertFS(e->k == VVOID || e->k == VJMP, "bad expr type %d", e->k);
+    return;
+  }
+  bcemit_INS(fs, ins);
+noins:
+  e->u.s.info = reg;
+  e->k = VNONRELOC;
+}
+
+/* Forward declaration. */
+static BCPos bcemit_jmp(FuncState *fs);
+
+/* Discharge an expression to a specific register. */
+static void expr_toreg(FuncState *fs, ExpDesc *e, BCReg reg)
+{
+  expr_toreg_nobranch(fs, e, reg);
+  if (e->k == VJMP)
+    jmp_append(fs, &e->t, e->u.s.info);  /* Add it to the true jump list. */
+  if (expr_hasjump(e)) {  /* Discharge expression with branches. */
+    BCPos jend, jfalse = NO_JMP, jtrue = NO_JMP;
+    if (jmp_novalue(fs, e->t) || jmp_novalue(fs, e->f)) {
+      BCPos jval = (e->k == VJMP) ? NO_JMP : bcemit_jmp(fs);
+      jfalse = bcemit_AD(fs, BC_KPRI, reg, VKFALSE);
+      bcemit_AJ(fs, BC_JMP, fs->freereg, 1);
+      jtrue = bcemit_AD(fs, BC_KPRI, reg, VKTRUE);
+      jmp_tohere(fs, jval);
+    }
+    jend = fs->pc;
+    fs->lasttarget = jend;
+    jmp_patchval(fs, e->f, jend, reg, jfalse);
+    jmp_patchval(fs, e->t, jend, reg, jtrue);
+  }
+  e->f = e->t = NO_JMP;
+  e->u.s.info = reg;
+  e->k = VNONRELOC;
+}
+
+/* Discharge an expression to the next free register. */
+static void expr_tonextreg(FuncState *fs, ExpDesc *e)
+{
+  expr_discharge(fs, e);
+  expr_free(fs, e);
+  bcreg_reserve(fs, 1);
+  expr_toreg(fs, e, fs->freereg - 1);
+}
+
+/* Discharge an expression to any register. */
+static BCReg expr_toanyreg(FuncState *fs, ExpDesc *e)
+{
+  expr_discharge(fs, e);
+  if (e->k == VNONRELOC) {
+    if (!expr_hasjump(e)) return e->u.s.info;  /* Already in a register. */
+    if (e->u.s.info >= fs->nactvar) {
+      expr_toreg(fs, e, e->u.s.info);  /* Discharge to temp. register. */
+      return e->u.s.info;
+    }
+  }
+  expr_tonextreg(fs, e);  /* Discharge to next register. */
+  return e->u.s.info;
+}
+
+/* Partially discharge expression to a value. */
+static void expr_toval(FuncState *fs, ExpDesc *e)
+{
+  if (expr_hasjump(e))
+    expr_toanyreg(fs, e);
+  else
+    expr_discharge(fs, e);
+}
+
+/* Emit store for LHS expression. */
+static void bcemit_store(FuncState *fs, ExpDesc *var, ExpDesc *e)
+{
+  BCIns ins;
+  if (var->k == VLOCAL) {
+    fs->ls->vstack[var->u.s.aux].info |= VSTACK_VAR_RW;
+    expr_free(fs, e);
+    expr_toreg(fs, e, var->u.s.info);
+    return;
+  } else if (var->k == VUPVAL) {
+    fs->ls->vstack[var->u.s.aux].info |= VSTACK_VAR_RW;
+    expr_toval(fs, e);
+    if (e->k <= VKTRUE)
+      ins = BCINS_AD(BC_USETP, var->u.s.info, const_pri(e));
+    else if (e->k == VKSTR)
+      ins = BCINS_AD(BC_USETS, var->u.s.info, const_str(fs, e));
+    else if (e->k == VKNUM)
+      ins = BCINS_AD(BC_USETN, var->u.s.info, const_num(fs, e));
+    else
+      ins = BCINS_AD(BC_USETV, var->u.s.info, expr_toanyreg(fs, e));
+  } else if (var->k == VGLOBAL) {
+    BCReg ra = expr_toanyreg(fs, e);
+    ins = BCINS_AD(BC_GSET, ra, const_str(fs, var));
+  } else {
+    BCReg ra, rc;
+    lj_assertFS(var->k == VINDEXED, "bad expr type %d", var->k);
+    ra = expr_toanyreg(fs, e);
+    rc = var->u.s.aux;
+    if ((int32_t)rc < 0) {
+      ins = BCINS_ABC(BC_TSETS, ra, var->u.s.info, ~rc);
+    } else if (rc > BCMAX_C) {
+      ins = BCINS_ABC(BC_TSETB, ra, var->u.s.info, rc-(BCMAX_C+1));
+    } else {
+#ifdef LUA_USE_ASSERT
+      /* Free late alloced key reg to avoid assert on free of value reg. */
+      /* This can only happen when called from expr_table(). */
+      if (e->k == VNONRELOC && ra >= fs->nactvar && rc >= ra)
+	bcreg_free(fs, rc);
+#endif
+      ins = BCINS_ABC(BC_TSETV, ra, var->u.s.info, rc);
+    }
+  }
+  bcemit_INS(fs, ins);
+  expr_free(fs, e);
+}
+
+/* Emit method lookup expression. */
+static void bcemit_method(FuncState *fs, ExpDesc *e, ExpDesc *key)
+{
+  BCReg idx, func, obj = expr_toanyreg(fs, e);
+  expr_free(fs, e);
+  func = fs->freereg;
+  bcemit_AD(fs, BC_MOV, func+1+LJ_FR2, obj);  /* Copy object to 1st argument. */
+  lj_assertFS(expr_isstrk(key), "bad usage");
+  idx = const_str(fs, key);
+  if (idx <= BCMAX_C) {
+    bcreg_reserve(fs, 2+LJ_FR2);
+    bcemit_ABC(fs, BC_TGETS, func, obj, idx);
+  } else {
+    bcreg_reserve(fs, 3+LJ_FR2);
+    bcemit_AD(fs, BC_KSTR, func+2+LJ_FR2, idx);
+    bcemit_ABC(fs, BC_TGETV, func, obj, func+2+LJ_FR2);
+    fs->freereg--;
+  }
+  e->u.s.info = func;
+  e->k = VNONRELOC;
+}
+
+/* -- Bytecode emitter for branches --------------------------------------- */
+
+/* Emit unconditional branch. */
+static BCPos bcemit_jmp(FuncState *fs)
+{
+  BCPos jpc = fs->jpc;
+  BCPos j = fs->pc - 1;
+  BCIns *ip = &fs->bcbase[j].ins;
+  fs->jpc = NO_JMP;
+  if ((int32_t)j >= (int32_t)fs->lasttarget && bc_op(*ip) == BC_UCLO) {
+    setbc_j(ip, NO_JMP);
+    fs->lasttarget = j+1;
+  } else {
+    j = bcemit_AJ(fs, BC_JMP, fs->freereg, NO_JMP);
+  }
+  jmp_append(fs, &j, jpc);
+  return j;
+}
+
+/* Invert branch condition of bytecode instruction. */
+static void invertcond(FuncState *fs, ExpDesc *e)
+{
+  BCIns *ip = &fs->bcbase[e->u.s.info - 1].ins;
+  setbc_op(ip, bc_op(*ip)^1);
+}
+
+/* Emit conditional branch. */
+static BCPos bcemit_branch(FuncState *fs, ExpDesc *e, int cond)
+{
+  BCPos pc;
+  if (e->k == VRELOCABLE) {
+    BCIns *ip = bcptr(fs, e);
+    if (bc_op(*ip) == BC_NOT) {
+      *ip = BCINS_AD(cond ? BC_ISF : BC_IST, 0, bc_d(*ip));
+      return bcemit_jmp(fs);
+    }
+  }
+  if (e->k != VNONRELOC) {
+    bcreg_reserve(fs, 1);
+    expr_toreg_nobranch(fs, e, fs->freereg-1);
+  }
+  bcemit_AD(fs, cond ? BC_ISTC : BC_ISFC, NO_REG, e->u.s.info);
+  pc = bcemit_jmp(fs);
+  expr_free(fs, e);
+  return pc;
+}
+
+/* Emit branch on true condition. */
+static void bcemit_branch_t(FuncState *fs, ExpDesc *e)
+{
+  BCPos pc;
+  expr_discharge(fs, e);
+  if (e->k == VKSTR || e->k == VKNUM || e->k == VKTRUE)
+    pc = NO_JMP;  /* Never jump. */
+  else if (e->k == VJMP)
+    invertcond(fs, e), pc = e->u.s.info;
+  else if (e->k == VKFALSE || e->k == VKNIL)
+    expr_toreg_nobranch(fs, e, NO_REG), pc = bcemit_jmp(fs);
+  else
+    pc = bcemit_branch(fs, e, 0);
+  jmp_append(fs, &e->f, pc);
+  jmp_tohere(fs, e->t);
+  e->t = NO_JMP;
+}
+
+/* Emit branch on false condition. */
+static void bcemit_branch_f(FuncState *fs, ExpDesc *e)
+{
+  BCPos pc;
+  expr_discharge(fs, e);
+  if (e->k == VKNIL || e->k == VKFALSE)
+    pc = NO_JMP;  /* Never jump. */
+  else if (e->k == VJMP)
+    pc = e->u.s.info;
+  else if (e->k == VKSTR || e->k == VKNUM || e->k == VKTRUE)
+    expr_toreg_nobranch(fs, e, NO_REG), pc = bcemit_jmp(fs);
+  else
+    pc = bcemit_branch(fs, e, 1);
+  jmp_append(fs, &e->t, pc);
+  jmp_tohere(fs, e->f);
+  e->f = NO_JMP;
+}
+
+/* -- Bytecode emitter for operators -------------------------------------- */
+
+/* Try constant-folding of arithmetic operators. */
+static int foldarith(BinOpr opr, ExpDesc *e1, ExpDesc *e2)
+{
+  TValue o;
+  lua_Number n;
+  if (!expr_isnumk_nojump(e1) || !expr_isnumk_nojump(e2)) return 0;
+  n = lj_vm_foldarith(expr_numberV(e1), expr_numberV(e2), (int)opr-OPR_ADD);
+  setnumV(&o, n);
+  if (tvisnan(&o) || tvismzero(&o)) return 0;  /* Avoid NaN and -0 as consts. */
+  if (LJ_DUALNUM) {
+    int32_t k = lj_num2int(n);
+    if ((lua_Number)k == n) {
+      setintV(&e1->u.nval, k);
+      return 1;
+    }
+  }
+  setnumV(&e1->u.nval, n);
+  return 1;
+}
+
+/* Emit arithmetic operator. */
+static void bcemit_arith(FuncState *fs, BinOpr opr, ExpDesc *e1, ExpDesc *e2)
+{
+  BCReg rb, rc, t;
+  uint32_t op;
+  if (foldarith(opr, e1, e2))
+    return;
+  if (opr == OPR_POW) {
+    op = BC_POW;
+    rc = expr_toanyreg(fs, e2);
+    rb = expr_toanyreg(fs, e1);
+  } else {
+    op = opr-OPR_ADD+BC_ADDVV;
+    /* Must discharge 2nd operand first since VINDEXED might free regs. */
+    expr_toval(fs, e2);
+    if (expr_isnumk(e2) && (rc = const_num(fs, e2)) <= BCMAX_C)
+      op -= BC_ADDVV-BC_ADDVN;
+    else
+      rc = expr_toanyreg(fs, e2);
+    /* 1st operand discharged by bcemit_binop_left, but need KNUM/KSHORT. */
+    lj_assertFS(expr_isnumk(e1) || e1->k == VNONRELOC,
+		"bad expr type %d", e1->k);
+    expr_toval(fs, e1);
+    /* Avoid two consts to satisfy bytecode constraints. */
+    if (expr_isnumk(e1) && !expr_isnumk(e2) &&
+	(t = const_num(fs, e1)) <= BCMAX_B) {
+      rb = rc; rc = t; op -= BC_ADDVV-BC_ADDNV;
+    } else {
+      rb = expr_toanyreg(fs, e1);
+    }
+  }
+  /* Using expr_free might cause asserts if the order is wrong. */
+  if (e1->k == VNONRELOC && e1->u.s.info >= fs->nactvar) fs->freereg--;
+  if (e2->k == VNONRELOC && e2->u.s.info >= fs->nactvar) fs->freereg--;
+  e1->u.s.info = bcemit_ABC(fs, op, 0, rb, rc);
+  e1->k = VRELOCABLE;
+}
+
+/* Emit comparison operator. */
+static void bcemit_comp(FuncState *fs, BinOpr opr, ExpDesc *e1, ExpDesc *e2)
+{
+  ExpDesc *eret = e1;
+  BCIns ins;
+  expr_toval(fs, e1);
+  if (opr == OPR_EQ || opr == OPR_NE) {
+    BCOp op = opr == OPR_EQ ? BC_ISEQV : BC_ISNEV;
+    BCReg ra;
+    if (expr_isk(e1)) { e1 = e2; e2 = eret; }  /* Need constant in 2nd arg. */
+    ra = expr_toanyreg(fs, e1);  /* First arg must be in a reg. */
+    expr_toval(fs, e2);
+    switch (e2->k) {
+    case VKNIL: case VKFALSE: case VKTRUE:
+      ins = BCINS_AD(op+(BC_ISEQP-BC_ISEQV), ra, const_pri(e2));
+      break;
+    case VKSTR:
+      ins = BCINS_AD(op+(BC_ISEQS-BC_ISEQV), ra, const_str(fs, e2));
+      break;
+    case VKNUM:
+      ins = BCINS_AD(op+(BC_ISEQN-BC_ISEQV), ra, const_num(fs, e2));
+      break;
+    default:
+      ins = BCINS_AD(op, ra, expr_toanyreg(fs, e2));
+      break;
+    }
+  } else {
+    uint32_t op = opr-OPR_LT+BC_ISLT;
+    BCReg ra, rd;
+    if ((op-BC_ISLT) & 1) {  /* GT -> LT, GE -> LE */
+      e1 = e2; e2 = eret;  /* Swap operands. */
+      op = ((op-BC_ISLT)^3)+BC_ISLT;
+      expr_toval(fs, e1);
+      ra = expr_toanyreg(fs, e1);
+      rd = expr_toanyreg(fs, e2);
+    } else {
+      rd = expr_toanyreg(fs, e2);
+      ra = expr_toanyreg(fs, e1);
+    }
+    ins = BCINS_AD(op, ra, rd);
+  }
+  /* Using expr_free might cause asserts if the order is wrong. */
+  if (e1->k == VNONRELOC && e1->u.s.info >= fs->nactvar) fs->freereg--;
+  if (e2->k == VNONRELOC && e2->u.s.info >= fs->nactvar) fs->freereg--;
+  bcemit_INS(fs, ins);
+  eret->u.s.info = bcemit_jmp(fs);
+  eret->k = VJMP;
+}
+
+/* Fixup left side of binary operator. */
+static void bcemit_binop_left(FuncState *fs, BinOpr op, ExpDesc *e)
+{
+  if (op == OPR_AND) {
+    bcemit_branch_t(fs, e);
+  } else if (op == OPR_OR) {
+    bcemit_branch_f(fs, e);
+  } else if (op == OPR_CONCAT) {
+    expr_tonextreg(fs, e);
+  } else if (op == OPR_EQ || op == OPR_NE) {
+    if (!expr_isk_nojump(e)) expr_toanyreg(fs, e);
+  } else {
+    if (!expr_isnumk_nojump(e)) expr_toanyreg(fs, e);
+  }
+}
+
+/* Emit binary operator. */
+static void bcemit_binop(FuncState *fs, BinOpr op, ExpDesc *e1, ExpDesc *e2)
+{
+  if (op <= OPR_POW) {
+    bcemit_arith(fs, op, e1, e2);
+  } else if (op == OPR_AND) {
+    lj_assertFS(e1->t == NO_JMP, "jump list not closed");
+    expr_discharge(fs, e2);
+    jmp_append(fs, &e2->f, e1->f);
+    *e1 = *e2;
+  } else if (op == OPR_OR) {
+    lj_assertFS(e1->f == NO_JMP, "jump list not closed");
+    expr_discharge(fs, e2);
+    jmp_append(fs, &e2->t, e1->t);
+    *e1 = *e2;
+  } else if (op == OPR_CONCAT) {
+    expr_toval(fs, e2);
+    if (e2->k == VRELOCABLE && bc_op(*bcptr(fs, e2)) == BC_CAT) {
+      lj_assertFS(e1->u.s.info == bc_b(*bcptr(fs, e2))-1,
+		  "bad CAT stack layout");
+      expr_free(fs, e1);
+      setbc_b(bcptr(fs, e2), e1->u.s.info);
+      e1->u.s.info = e2->u.s.info;
+    } else {
+      expr_tonextreg(fs, e2);
+      expr_free(fs, e2);
+      expr_free(fs, e1);
+      e1->u.s.info = bcemit_ABC(fs, BC_CAT, 0, e1->u.s.info, e2->u.s.info);
+    }
+    e1->k = VRELOCABLE;
+  } else {
+    lj_assertFS(op == OPR_NE || op == OPR_EQ ||
+	       op == OPR_LT || op == OPR_GE || op == OPR_LE || op == OPR_GT,
+	       "bad binop %d", op);
+    bcemit_comp(fs, op, e1, e2);
+  }
+}
+
+/* Emit unary operator. */
+static void bcemit_unop(FuncState *fs, BCOp op, ExpDesc *e)
+{
+  if (op == BC_NOT) {
+    /* Swap true and false lists. */
+    { BCPos temp = e->f; e->f = e->t; e->t = temp; }
+    jmp_dropval(fs, e->f);
+    jmp_dropval(fs, e->t);
+    expr_discharge(fs, e);
+    if (e->k == VKNIL || e->k == VKFALSE) {
+      e->k = VKTRUE;
+      return;
+    } else if (expr_isk(e) || (LJ_HASFFI && e->k == VKCDATA)) {
+      e->k = VKFALSE;
+      return;
+    } else if (e->k == VJMP) {
+      invertcond(fs, e);
+      return;
+    } else if (e->k == VRELOCABLE) {
+      bcreg_reserve(fs, 1);
+      setbc_a(bcptr(fs, e), fs->freereg-1);
+      e->u.s.info = fs->freereg-1;
+      e->k = VNONRELOC;
+    } else {
+      lj_assertFS(e->k == VNONRELOC, "bad expr type %d", e->k);
+    }
+  } else {
+    lj_assertFS(op == BC_UNM || op == BC_LEN, "bad unop %d", op);
+    if (op == BC_UNM && !expr_hasjump(e)) {  /* Constant-fold negations. */
+#if LJ_HASFFI
+      if (e->k == VKCDATA) {  /* Fold in-place since cdata is not interned. */
+	GCcdata *cd = cdataV(&e->u.nval);
+	int64_t *p = (int64_t *)cdataptr(cd);
+	if (cd->ctypeid == CTID_COMPLEX_DOUBLE)
+	  p[1] ^= (int64_t)U64x(80000000,00000000);
+	else
+	  *p = -*p;
+	return;
+      } else
+#endif
+      if (expr_isnumk(e) && !expr_numiszero(e)) {  /* Avoid folding to -0. */
+	TValue *o = expr_numtv(e);
+	if (tvisint(o)) {
+	  int32_t k = intV(o);
+	  if (k == -k)
+	    setnumV(o, -(lua_Number)k);
+	  else
+	    setintV(o, -k);
+	  return;
+	} else {
+	  o->u64 ^= U64x(80000000,00000000);
+	  return;
+	}
+      }
+    }
+    expr_toanyreg(fs, e);
+  }
+  expr_free(fs, e);
+  e->u.s.info = bcemit_AD(fs, op, 0, e->u.s.info);
+  e->k = VRELOCABLE;
+}
+
+/* -- Lexer support ------------------------------------------------------- */
+
+/* Check and consume optional token. */
+static int lex_opt(LexState *ls, LexToken tok)
+{
+  if (ls->tok == tok) {
+    lj_lex_next(ls);
+    return 1;
+  }
+  return 0;
+}
+
+/* Check and consume token. */
+static void lex_check(LexState *ls, LexToken tok)
+{
+  if (ls->tok != tok)
+    err_token(ls, tok);
+  lj_lex_next(ls);
+}
+
+/* Check for matching token. */
+static void lex_match(LexState *ls, LexToken what, LexToken who, BCLine line)
+{
+  if (!lex_opt(ls, what)) {
+    if (line == ls->linenumber) {
+      err_token(ls, what);
+    } else {
+      const char *swhat = lj_lex_token2str(ls, what);
+      const char *swho = lj_lex_token2str(ls, who);
+      lj_lex_error(ls, ls->tok, LJ_ERR_XMATCH, swhat, swho, line);
+    }
+  }
+}
+
+/* Check for string token. */
+static GCstr *lex_str(LexState *ls)
+{
+  GCstr *s;
+  if (ls->tok != TK_name && (LJ_52 || ls->tok != TK_goto))
+    err_token(ls, TK_name);
+  s = strV(&ls->tokval);
+  lj_lex_next(ls);
+  return s;
+}
+
+/* -- Variable handling --------------------------------------------------- */
+
+#define var_get(ls, fs, i)	((ls)->vstack[(fs)->varmap[(i)]])
+
+/* Define a new local variable. */
+static void var_new(LexState *ls, BCReg n, GCstr *name)
+{
+  FuncState *fs = ls->fs;
+  MSize vtop = ls->vtop;
+  checklimit(fs, fs->nactvar+n, LJ_MAX_LOCVAR, "local variables");
+  if (LJ_UNLIKELY(vtop >= ls->sizevstack)) {
+    if (ls->sizevstack >= LJ_MAX_VSTACK)
+      lj_lex_error(ls, 0, LJ_ERR_XLIMC, LJ_MAX_VSTACK);
+    lj_mem_growvec(ls->L, ls->vstack, ls->sizevstack, LJ_MAX_VSTACK, VarInfo);
+  }
+  lj_assertFS((uintptr_t)name < VARNAME__MAX ||
+	      lj_tab_getstr(fs->kt, name) != NULL,
+	      "unanchored variable name");
+  /* NOBARRIER: name is anchored in fs->kt and ls->vstack is not a GCobj. */
+  setgcref(ls->vstack[vtop].name, obj2gco(name));
+  fs->varmap[fs->nactvar+n] = (uint16_t)vtop;
+  ls->vtop = vtop+1;
+}
+
+#define var_new_lit(ls, n, v) \
+  var_new(ls, (n), lj_parse_keepstr(ls, "" v, sizeof(v)-1))
+
+#define var_new_fixed(ls, n, vn) \
+  var_new(ls, (n), (GCstr *)(uintptr_t)(vn))
+
+/* Add local variables. */
+static void var_add(LexState *ls, BCReg nvars)
+{
+  FuncState *fs = ls->fs;
+  BCReg nactvar = fs->nactvar;
+  while (nvars--) {
+    VarInfo *v = &var_get(ls, fs, nactvar);
+    v->startpc = fs->pc;
+    v->slot = nactvar++;
+    v->info = 0;
+  }
+  fs->nactvar = nactvar;
+}
+
+/* Remove local variables. */
+static void var_remove(LexState *ls, BCReg tolevel)
+{
+  FuncState *fs = ls->fs;
+  while (fs->nactvar > tolevel)
+    var_get(ls, fs, --fs->nactvar).endpc = fs->pc;
+}
+
+/* Lookup local variable name. */
+static BCReg var_lookup_local(FuncState *fs, GCstr *n)
+{
+  int i;
+  for (i = fs->nactvar-1; i >= 0; i--) {
+    if (n == strref(var_get(fs->ls, fs, i).name))
+      return (BCReg)i;
+  }
+  return (BCReg)-1;  /* Not found. */
+}
+
+/* Lookup or add upvalue index. */
+static MSize var_lookup_uv(FuncState *fs, MSize vidx, ExpDesc *e)
+{
+  MSize i, n = fs->nuv;
+  for (i = 0; i < n; i++)
+    if (fs->uvmap[i] == vidx)
+      return i;  /* Already exists. */
+  /* Otherwise create a new one. */
+  checklimit(fs, fs->nuv, LJ_MAX_UPVAL, "upvalues");
+  lj_assertFS(e->k == VLOCAL || e->k == VUPVAL, "bad expr type %d", e->k);
+  fs->uvmap[n] = (uint16_t)vidx;
+  fs->uvtmp[n] = (uint16_t)(e->k == VLOCAL ? vidx : LJ_MAX_VSTACK+e->u.s.info);
+  fs->nuv = n+1;
+  return n;
+}
+
+/* Forward declaration. */
+static void fscope_uvmark(FuncState *fs, BCReg level);
+
+/* Recursively lookup variables in enclosing functions. */
+static MSize var_lookup_(FuncState *fs, GCstr *name, ExpDesc *e, int first)
+{
+  if (fs) {
+    BCReg reg = var_lookup_local(fs, name);
+    if ((int32_t)reg >= 0) {  /* Local in this function? */
+      expr_init(e, VLOCAL, reg);
+      if (!first)
+	fscope_uvmark(fs, reg);  /* Scope now has an upvalue. */
+      return (MSize)(e->u.s.aux = (uint32_t)fs->varmap[reg]);
+    } else {
+      MSize vidx = var_lookup_(fs->prev, name, e, 0);  /* Var in outer func? */
+      if ((int32_t)vidx >= 0) {  /* Yes, make it an upvalue here. */
+	e->u.s.info = (uint8_t)var_lookup_uv(fs, vidx, e);
+	e->k = VUPVAL;
+	return vidx;
+      }
+    }
+  } else {  /* Not found in any function, must be a global. */
+    expr_init(e, VGLOBAL, 0);
+    e->u.sval = name;
+  }
+  return (MSize)-1;  /* Global. */
+}
+
+/* Lookup variable name. */
+#define var_lookup(ls, e) \
+  var_lookup_((ls)->fs, lex_str(ls), (e), 1)
+
+/* -- Goto an label handling ---------------------------------------------- */
+
+/* Add a new goto or label. */
+static MSize gola_new(LexState *ls, GCstr *name, uint8_t info, BCPos pc)
+{
+  FuncState *fs = ls->fs;
+  MSize vtop = ls->vtop;
+  if (LJ_UNLIKELY(vtop >= ls->sizevstack)) {
+    if (ls->sizevstack >= LJ_MAX_VSTACK)
+      lj_lex_error(ls, 0, LJ_ERR_XLIMC, LJ_MAX_VSTACK);
+    lj_mem_growvec(ls->L, ls->vstack, ls->sizevstack, LJ_MAX_VSTACK, VarInfo);
+  }
+  lj_assertFS(name == NAME_BREAK || lj_tab_getstr(fs->kt, name) != NULL,
+	      "unanchored label name");
+  /* NOBARRIER: name is anchored in fs->kt and ls->vstack is not a GCobj. */
+  setgcref(ls->vstack[vtop].name, obj2gco(name));
+  ls->vstack[vtop].startpc = pc;
+  ls->vstack[vtop].slot = (uint8_t)fs->nactvar;
+  ls->vstack[vtop].info = info;
+  ls->vtop = vtop+1;
+  return vtop;
+}
+
+#define gola_isgoto(v)		((v)->info & VSTACK_GOTO)
+#define gola_islabel(v)		((v)->info & VSTACK_LABEL)
+#define gola_isgotolabel(v)	((v)->info & (VSTACK_GOTO|VSTACK_LABEL))
+
+/* Patch goto to jump to label. */
+static void gola_patch(LexState *ls, VarInfo *vg, VarInfo *vl)
+{
+  FuncState *fs = ls->fs;
+  BCPos pc = vg->startpc;
+  setgcrefnull(vg->name);  /* Invalidate pending goto. */
+  setbc_a(&fs->bcbase[pc].ins, vl->slot);
+  jmp_patch(fs, pc, vl->startpc);
+}
+
+/* Patch goto to close upvalues. */
+static void gola_close(LexState *ls, VarInfo *vg)
+{
+  FuncState *fs = ls->fs;
+  BCPos pc = vg->startpc;
+  BCIns *ip = &fs->bcbase[pc].ins;
+  lj_assertFS(gola_isgoto(vg), "expected goto");
+  lj_assertFS(bc_op(*ip) == BC_JMP || bc_op(*ip) == BC_UCLO,
+	      "bad bytecode op %d", bc_op(*ip));
+  setbc_a(ip, vg->slot);
+  if (bc_op(*ip) == BC_JMP) {
+    BCPos next = jmp_next(fs, pc);
+    if (next != NO_JMP) jmp_patch(fs, next, pc);  /* Jump to UCLO. */
+    setbc_op(ip, BC_UCLO);  /* Turn into UCLO. */
+    setbc_j(ip, NO_JMP);
+  }
+}
+
+/* Resolve pending forward gotos for label. */
+static void gola_resolve(LexState *ls, FuncScope *bl, MSize idx)
+{
+  VarInfo *vg = ls->vstack + bl->vstart;
+  VarInfo *vl = ls->vstack + idx;
+  for (; vg < vl; vg++)
+    if (gcrefeq(vg->name, vl->name) && gola_isgoto(vg)) {
+      if (vg->slot < vl->slot) {
+	GCstr *name = strref(var_get(ls, ls->fs, vg->slot).name);
+	lj_assertLS((uintptr_t)name >= VARNAME__MAX, "expected goto name");
+	ls->linenumber = ls->fs->bcbase[vg->startpc].line;
+	lj_assertLS(strref(vg->name) != NAME_BREAK, "unexpected break");
+	lj_lex_error(ls, 0, LJ_ERR_XGSCOPE,
+		     strdata(strref(vg->name)), strdata(name));
+      }
+      gola_patch(ls, vg, vl);
+    }
+}
+
+/* Fixup remaining gotos and labels for scope. */
+static void gola_fixup(LexState *ls, FuncScope *bl)
+{
+  VarInfo *v = ls->vstack + bl->vstart;
+  VarInfo *ve = ls->vstack + ls->vtop;
+  for (; v < ve; v++) {
+    GCstr *name = strref(v->name);
+    if (name != NULL) {  /* Only consider remaining valid gotos/labels. */
+      if (gola_islabel(v)) {
+	VarInfo *vg;
+	setgcrefnull(v->name);  /* Invalidate label that goes out of scope. */
+	for (vg = v+1; vg < ve; vg++)  /* Resolve pending backward gotos. */
+	  if (strref(vg->name) == name && gola_isgoto(vg)) {
+	    if ((bl->flags&FSCOPE_UPVAL) && vg->slot > v->slot)
+	      gola_close(ls, vg);
+	    gola_patch(ls, vg, v);
+	  }
+      } else if (gola_isgoto(v)) {
+	if (bl->prev) {  /* Propagate goto or break to outer scope. */
+	  bl->prev->flags |= name == NAME_BREAK ? FSCOPE_BREAK : FSCOPE_GOLA;
+	  v->slot = bl->nactvar;
+	  if ((bl->flags & FSCOPE_UPVAL))
+	    gola_close(ls, v);
+	} else {  /* No outer scope: undefined goto label or no loop. */
+	  ls->linenumber = ls->fs->bcbase[v->startpc].line;
+	  if (name == NAME_BREAK)
+	    lj_lex_error(ls, 0, LJ_ERR_XBREAK);
+	  else
+	    lj_lex_error(ls, 0, LJ_ERR_XLUNDEF, strdata(name));
+	}
+      }
+    }
+  }
+}
+
+/* Find existing label. */
+static VarInfo *gola_findlabel(LexState *ls, GCstr *name)
+{
+  VarInfo *v = ls->vstack + ls->fs->bl->vstart;
+  VarInfo *ve = ls->vstack + ls->vtop;
+  for (; v < ve; v++)
+    if (strref(v->name) == name && gola_islabel(v))
+      return v;
+  return NULL;
+}
+
+/* -- Scope handling ------------------------------------------------------ */
+
+/* Begin a scope. */
+static void fscope_begin(FuncState *fs, FuncScope *bl, int flags)
+{
+  bl->nactvar = (uint8_t)fs->nactvar;
+  bl->flags = flags;
+  bl->vstart = fs->ls->vtop;
+  bl->prev = fs->bl;
+  fs->bl = bl;
+  lj_assertFS(fs->freereg == fs->nactvar, "bad regalloc");
+}
+
+/* End a scope. */
+static void fscope_end(FuncState *fs)
+{
+  FuncScope *bl = fs->bl;
+  LexState *ls = fs->ls;
+  fs->bl = bl->prev;
+  var_remove(ls, bl->nactvar);
+  fs->freereg = fs->nactvar;
+  lj_assertFS(bl->nactvar == fs->nactvar, "bad regalloc");
+  if ((bl->flags & (FSCOPE_UPVAL|FSCOPE_NOCLOSE)) == FSCOPE_UPVAL)
+    bcemit_AJ(fs, BC_UCLO, bl->nactvar, 0);
+  if ((bl->flags & FSCOPE_BREAK)) {
+    if ((bl->flags & FSCOPE_LOOP)) {
+      MSize idx = gola_new(ls, NAME_BREAK, VSTACK_LABEL, fs->pc);
+      ls->vtop = idx;  /* Drop break label immediately. */
+      gola_resolve(ls, bl, idx);
+    } else {  /* Need the fixup step to propagate the breaks. */
+      gola_fixup(ls, bl);
+      return;
+    }
+  }
+  if ((bl->flags & FSCOPE_GOLA)) {
+    gola_fixup(ls, bl);
+  }
+}
+
+/* Mark scope as having an upvalue. */
+static void fscope_uvmark(FuncState *fs, BCReg level)
+{
+  FuncScope *bl;
+  for (bl = fs->bl; bl && bl->nactvar > level; bl = bl->prev)
+    ;
+  if (bl)
+    bl->flags |= FSCOPE_UPVAL;
+}
+
+/* -- Function state management ------------------------------------------- */
+
+/* Fixup bytecode for prototype. */
+static void fs_fixup_bc(FuncState *fs, GCproto *pt, BCIns *bc, MSize n)
+{
+  BCInsLine *base = fs->bcbase;
+  MSize i;
+  pt->sizebc = n;
+  bc[0] = BCINS_AD((fs->flags & PROTO_VARARG) ? BC_FUNCV : BC_FUNCF,
+		   fs->framesize, 0);
+  for (i = 1; i < n; i++)
+    bc[i] = base[i].ins;
+}
+
+/* Fixup upvalues for child prototype, step #2. */
+static void fs_fixup_uv2(FuncState *fs, GCproto *pt)
+{
+  VarInfo *vstack = fs->ls->vstack;
+  uint16_t *uv = proto_uv(pt);
+  MSize i, n = pt->sizeuv;
+  for (i = 0; i < n; i++) {
+    VarIndex vidx = uv[i];
+    if (vidx >= LJ_MAX_VSTACK)
+      uv[i] = vidx - LJ_MAX_VSTACK;
+    else if ((vstack[vidx].info & VSTACK_VAR_RW))
+      uv[i] = vstack[vidx].slot | PROTO_UV_LOCAL;
+    else
+      uv[i] = vstack[vidx].slot | PROTO_UV_LOCAL | PROTO_UV_IMMUTABLE;
+  }
+}
+
+/* Fixup constants for prototype. */
+static void fs_fixup_k(FuncState *fs, GCproto *pt, void *kptr)
+{
+  GCtab *kt;
+  TValue *array;
+  Node *node;
+  MSize i, hmask;
+  checklimitgt(fs, fs->nkn, BCMAX_D+1, "constants");
+  checklimitgt(fs, fs->nkgc, BCMAX_D+1, "constants");
+  setmref(pt->k, kptr);
+  pt->sizekn = fs->nkn;
+  pt->sizekgc = fs->nkgc;
+  kt = fs->kt;
+  array = tvref(kt->array);
+  for (i = 0; i < kt->asize; i++)
+    if (tvhaskslot(&array[i])) {
+      TValue *tv = &((TValue *)kptr)[tvkslot(&array[i])];
+      if (LJ_DUALNUM)
+	setintV(tv, (int32_t)i);
+      else
+	setnumV(tv, (lua_Number)i);
+    }
+  node = noderef(kt->node);
+  hmask = kt->hmask;
+  for (i = 0; i <= hmask; i++) {
+    Node *n = &node[i];
+    if (tvhaskslot(&n->val)) {
+      ptrdiff_t kidx = (ptrdiff_t)tvkslot(&n->val);
+      lj_assertFS(!tvisint(&n->key), "unexpected integer key");
+      if (tvisnum(&n->key)) {
+	TValue *tv = &((TValue *)kptr)[kidx];
+	if (LJ_DUALNUM) {
+	  lua_Number nn = numV(&n->key);
+	  int32_t k = lj_num2int(nn);
+	  lj_assertFS(!tvismzero(&n->key), "unexpected -0 key");
+	  if ((lua_Number)k == nn)
+	    setintV(tv, k);
+	  else
+	    *tv = n->key;
+	} else {
+	  *tv = n->key;
+	}
+      } else {
+	GCobj *o = gcV(&n->key);
+	setgcref(((GCRef *)kptr)[~kidx], o);
+	lj_gc_objbarrier(fs->L, pt, o);
+	if (tvisproto(&n->key))
+	  fs_fixup_uv2(fs, gco2pt(o));
+      }
+    }
+  }
+}
+
+/* Fixup upvalues for prototype, step #1. */
+static void fs_fixup_uv1(FuncState *fs, GCproto *pt, uint16_t *uv)
+{
+  setmref(pt->uv, uv);
+  pt->sizeuv = fs->nuv;
+  memcpy(uv, fs->uvtmp, fs->nuv*sizeof(VarIndex));
+}
+
+#ifndef LUAJIT_DISABLE_DEBUGINFO
+/* Prepare lineinfo for prototype. */
+static size_t fs_prep_line(FuncState *fs, BCLine numline)
+{
+  return (fs->pc-1) << (numline < 256 ? 0 : numline < 65536 ? 1 : 2);
+}
+
+/* Fixup lineinfo for prototype. */
+static void fs_fixup_line(FuncState *fs, GCproto *pt,
+			  void *lineinfo, BCLine numline)
+{
+  BCInsLine *base = fs->bcbase + 1;
+  BCLine first = fs->linedefined;
+  MSize i = 0, n = fs->pc-1;
+  pt->firstline = fs->linedefined;
+  pt->numline = numline;
+  setmref(pt->lineinfo, lineinfo);
+  if (LJ_LIKELY(numline < 256)) {
+    uint8_t *li = (uint8_t *)lineinfo;
+    do {
+      BCLine delta = base[i].line - first;
+      lj_assertFS(delta >= 0 && delta < 256, "bad line delta");
+      li[i] = (uint8_t)delta;
+    } while (++i < n);
+  } else if (LJ_LIKELY(numline < 65536)) {
+    uint16_t *li = (uint16_t *)lineinfo;
+    do {
+      BCLine delta = base[i].line - first;
+      lj_assertFS(delta >= 0 && delta < 65536, "bad line delta");
+      li[i] = (uint16_t)delta;
+    } while (++i < n);
+  } else {
+    uint32_t *li = (uint32_t *)lineinfo;
+    do {
+      BCLine delta = base[i].line - first;
+      lj_assertFS(delta >= 0, "bad line delta");
+      li[i] = (uint32_t)delta;
+    } while (++i < n);
+  }
+}
+
+/* Prepare variable info for prototype. */
+static size_t fs_prep_var(LexState *ls, FuncState *fs, size_t *ofsvar)
+{
+  VarInfo *vs =ls->vstack, *ve;
+  MSize i, n;
+  BCPos lastpc;
+  lj_buf_reset(&ls->sb);  /* Copy to temp. string buffer. */
+  /* Store upvalue names. */
+  for (i = 0, n = fs->nuv; i < n; i++) {
+    GCstr *s = strref(vs[fs->uvmap[i]].name);
+    MSize len = s->len+1;
+    char *p = lj_buf_more(&ls->sb, len);
+    p = lj_buf_wmem(p, strdata(s), len);
+    ls->sb.w = p;
+  }
+  *ofsvar = sbuflen(&ls->sb);
+  lastpc = 0;
+  /* Store local variable names and compressed ranges. */
+  for (ve = vs + ls->vtop, vs += fs->vbase; vs < ve; vs++) {
+    if (!gola_isgotolabel(vs)) {
+      GCstr *s = strref(vs->name);
+      BCPos startpc;
+      char *p;
+      if ((uintptr_t)s < VARNAME__MAX) {
+	p = lj_buf_more(&ls->sb, 1 + 2*5);
+	*p++ = (char)(uintptr_t)s;
+      } else {
+	MSize len = s->len+1;
+	p = lj_buf_more(&ls->sb, len + 2*5);
+	p = lj_buf_wmem(p, strdata(s), len);
+      }
+      startpc = vs->startpc;
+      p = lj_strfmt_wuleb128(p, startpc-lastpc);
+      p = lj_strfmt_wuleb128(p, vs->endpc-startpc);
+      ls->sb.w = p;
+      lastpc = startpc;
+    }
+  }
+  lj_buf_putb(&ls->sb, '\0');  /* Terminator for varinfo. */
+  return sbuflen(&ls->sb);
+}
+
+/* Fixup variable info for prototype. */
+static void fs_fixup_var(LexState *ls, GCproto *pt, uint8_t *p, size_t ofsvar)
+{
+  setmref(pt->uvinfo, p);
+  setmref(pt->varinfo, (char *)p + ofsvar);
+  memcpy(p, ls->sb.b, sbuflen(&ls->sb));  /* Copy from temp. buffer. */
+}
+#else
+
+/* Initialize with empty debug info, if disabled. */
+#define fs_prep_line(fs, numline)		(UNUSED(numline), 0)
+#define fs_fixup_line(fs, pt, li, numline) \
+  pt->firstline = pt->numline = 0, setmref((pt)->lineinfo, NULL)
+#define fs_prep_var(ls, fs, ofsvar)		(UNUSED(ofsvar), 0)
+#define fs_fixup_var(ls, pt, p, ofsvar) \
+  setmref((pt)->uvinfo, NULL), setmref((pt)->varinfo, NULL)
+
+#endif
+
+/* Check if bytecode op returns. */
+static int bcopisret(BCOp op)
+{
+  switch (op) {
+  case BC_CALLMT: case BC_CALLT:
+  case BC_RETM: case BC_RET: case BC_RET0: case BC_RET1:
+    return 1;
+  default:
+    return 0;
+  }
+}
+
+/* Fixup return instruction for prototype. */
+static void fs_fixup_ret(FuncState *fs)
+{
+  BCPos lastpc = fs->pc;
+  if (lastpc <= fs->lasttarget || !bcopisret(bc_op(fs->bcbase[lastpc-1].ins))) {
+    if ((fs->bl->flags & FSCOPE_UPVAL))
+      bcemit_AJ(fs, BC_UCLO, 0, 0);
+    bcemit_AD(fs, BC_RET0, 0, 1);  /* Need final return. */
+  }
+  fs->bl->flags |= FSCOPE_NOCLOSE;  /* Handled above. */
+  fscope_end(fs);
+  lj_assertFS(fs->bl == NULL, "bad scope nesting");
+  /* May need to fixup returns encoded before first function was created. */
+  if (fs->flags & PROTO_FIXUP_RETURN) {
+    BCPos pc;
+    for (pc = 1; pc < lastpc; pc++) {
+      BCIns ins = fs->bcbase[pc].ins;
+      BCPos offset;
+      switch (bc_op(ins)) {
+      case BC_CALLMT: case BC_CALLT:
+      case BC_RETM: case BC_RET: case BC_RET0: case BC_RET1:
+	offset = bcemit_INS(fs, ins);  /* Copy original instruction. */
+	fs->bcbase[offset].line = fs->bcbase[pc].line;
+	offset = offset-(pc+1)+BCBIAS_J;
+	if (offset > BCMAX_D)
+	  err_syntax(fs->ls, LJ_ERR_XFIXUP);
+	/* Replace with UCLO plus branch. */
+	fs->bcbase[pc].ins = BCINS_AD(BC_UCLO, 0, offset);
+	break;
+      case BC_FNEW:
+	return;  /* We're done. */
+      default:
+	break;
+      }
+    }
+  }
+}
+
+/* Finish a FuncState and return the new prototype. */
+static GCproto *fs_finish(LexState *ls, BCLine line)
+{
+  lua_State *L = ls->L;
+  FuncState *fs = ls->fs;
+  BCLine numline = line - fs->linedefined;
+  size_t sizept, ofsk, ofsuv, ofsli, ofsdbg, ofsvar;
+  GCproto *pt;
+
+  /* Apply final fixups. */
+  fs_fixup_ret(fs);
+
+  /* Calculate total size of prototype including all colocated arrays. */
+  sizept = sizeof(GCproto) + fs->pc*sizeof(BCIns) + fs->nkgc*sizeof(GCRef);
+  sizept = (sizept + sizeof(TValue)-1) & ~(sizeof(TValue)-1);
+  ofsk = sizept; sizept += fs->nkn*sizeof(TValue);
+  ofsuv = sizept; sizept += ((fs->nuv+1)&~1)*2;
+  ofsli = sizept; sizept += fs_prep_line(fs, numline);
+  ofsdbg = sizept; sizept += fs_prep_var(ls, fs, &ofsvar);
+
+  /* Allocate prototype and initialize its fields. */
+  pt = (GCproto *)lj_mem_newgco(L, (MSize)sizept);
+  pt->gct = ~LJ_TPROTO;
+  pt->sizept = (MSize)sizept;
+  pt->trace = 0;
+  pt->flags = (uint8_t)(fs->flags & ~(PROTO_HAS_RETURN|PROTO_FIXUP_RETURN));
+  pt->numparams = fs->numparams;
+  pt->framesize = fs->framesize;
+  setgcref(pt->chunkname, obj2gco(ls->chunkname));
+
+  /* Close potentially uninitialized gap between bc and kgc. */
+  *(uint32_t *)((char *)pt + ofsk - sizeof(GCRef)*(fs->nkgc+1)) = 0;
+  fs_fixup_bc(fs, pt, (BCIns *)((char *)pt + sizeof(GCproto)), fs->pc);
+  fs_fixup_k(fs, pt, (void *)((char *)pt + ofsk));
+  fs_fixup_uv1(fs, pt, (uint16_t *)((char *)pt + ofsuv));
+  fs_fixup_line(fs, pt, (void *)((char *)pt + ofsli), numline);
+  fs_fixup_var(ls, pt, (uint8_t *)((char *)pt + ofsdbg), ofsvar);
+
+  lj_vmevent_send(L, BC,
+    setprotoV(L, L->top++, pt);
+  );
+
+  L->top--;  /* Pop table of constants. */
+  ls->vtop = fs->vbase;  /* Reset variable stack. */
+  ls->fs = fs->prev;
+  lj_assertL(ls->fs != NULL || ls->tok == TK_eof, "bad parser state");
+  return pt;
+}
+
+/* Initialize a new FuncState. */
+static void fs_init(LexState *ls, FuncState *fs)
+{
+  lua_State *L = ls->L;
+  fs->prev = ls->fs; ls->fs = fs;  /* Append to list. */
+  fs->ls = ls;
+  fs->vbase = ls->vtop;
+  fs->L = L;
+  fs->pc = 0;
+  fs->lasttarget = 0;
+  fs->jpc = NO_JMP;
+  fs->freereg = 0;
+  fs->nkgc = 0;
+  fs->nkn = 0;
+  fs->nactvar = 0;
+  fs->nuv = 0;
+  fs->bl = NULL;
+  fs->flags = 0;
+  fs->framesize = 1;  /* Minimum frame size. */
+  fs->kt = lj_tab_new(L, 0, 0);
+  /* Anchor table of constants in stack to avoid being collected. */
+  settabV(L, L->top, fs->kt);
+  incr_top(L);
+}
+
+/* -- Expressions --------------------------------------------------------- */
+
+/* Forward declaration. */
+static void expr(LexState *ls, ExpDesc *v);
+
+/* Return string expression. */
+static void expr_str(LexState *ls, ExpDesc *e)
+{
+  expr_init(e, VKSTR, 0);
+  e->u.sval = lex_str(ls);
+}
+
+/* Return index expression. */
+static void expr_index(FuncState *fs, ExpDesc *t, ExpDesc *e)
+{
+  /* Already called: expr_toval(fs, e). */
+  t->k = VINDEXED;
+  if (expr_isnumk(e)) {
+#if LJ_DUALNUM
+    if (tvisint(expr_numtv(e))) {
+      int32_t k = intV(expr_numtv(e));
+      if (checku8(k)) {
+	t->u.s.aux = BCMAX_C+1+(uint32_t)k;  /* 256..511: const byte key */
+	return;
+      }
+    }
+#else
+    lua_Number n = expr_numberV(e);
+    int32_t k = lj_num2int(n);
+    if (checku8(k) && n == (lua_Number)k) {
+      t->u.s.aux = BCMAX_C+1+(uint32_t)k;  /* 256..511: const byte key */
+      return;
+    }
+#endif
+  } else if (expr_isstrk(e)) {
+    BCReg idx = const_str(fs, e);
+    if (idx <= BCMAX_C) {
+      t->u.s.aux = ~idx;  /* -256..-1: const string key */
+      return;
+    }
+  }
+  t->u.s.aux = expr_toanyreg(fs, e);  /* 0..255: register */
+}
+
+/* Parse index expression with named field. */
+static void expr_field(LexState *ls, ExpDesc *v)
+{
+  FuncState *fs = ls->fs;
+  ExpDesc key;
+  expr_toanyreg(fs, v);
+  lj_lex_next(ls);  /* Skip dot or colon. */
+  expr_str(ls, &key);
+  expr_index(fs, v, &key);
+}
+
+/* Parse index expression with brackets. */
+static void expr_bracket(LexState *ls, ExpDesc *v)
+{
+  lj_lex_next(ls);  /* Skip '['. */
+  expr(ls, v);
+  expr_toval(ls->fs, v);
+  lex_check(ls, ']');
+}
+
+/* Get value of constant expression. */
+static void expr_kvalue(FuncState *fs, TValue *v, ExpDesc *e)
+{
+  UNUSED(fs);
+  if (e->k <= VKTRUE) {
+    setpriV(v, ~(uint32_t)e->k);
+  } else if (e->k == VKSTR) {
+    setgcVraw(v, obj2gco(e->u.sval), LJ_TSTR);
+  } else {
+    lj_assertFS(tvisnumber(expr_numtv(e)), "bad number constant");
+    *v = *expr_numtv(e);
+  }
+}
+
+/* Parse table constructor expression. */
+static void expr_table(LexState *ls, ExpDesc *e)
+{
+  FuncState *fs = ls->fs;
+  BCLine line = ls->linenumber;
+  GCtab *t = NULL;
+  int vcall = 0, needarr = 0, fixt = 0;
+  uint32_t narr = 1;  /* First array index. */
+  uint32_t nhash = 0;  /* Number of hash entries. */
+  BCReg freg = fs->freereg;
+  BCPos pc = bcemit_AD(fs, BC_TNEW, freg, 0);
+  expr_init(e, VNONRELOC, freg);
+  bcreg_reserve(fs, 1);
+  freg++;
+  lex_check(ls, '{');
+  while (ls->tok != '}') {
+    ExpDesc key, val;
+    vcall = 0;
+    if (ls->tok == '[') {
+      expr_bracket(ls, &key);  /* Already calls expr_toval. */
+      if (!expr_isk(&key)) expr_index(fs, e, &key);
+      if (expr_isnumk(&key) && expr_numiszero(&key)) needarr = 1; else nhash++;
+      lex_check(ls, '=');
+    } else if ((ls->tok == TK_name || (!LJ_52 && ls->tok == TK_goto)) &&
+	       lj_lex_lookahead(ls) == '=') {
+      expr_str(ls, &key);
+      lex_check(ls, '=');
+      nhash++;
+    } else {
+      expr_init(&key, VKNUM, 0);
+      setintV(&key.u.nval, (int)narr);
+      narr++;
+      needarr = vcall = 1;
+    }
+    expr(ls, &val);
+    if (expr_isk(&key) && key.k != VKNIL &&
+	(key.k == VKSTR || expr_isk_nojump(&val))) {
+      TValue k, *v;
+      if (!t) {  /* Create template table on demand. */
+	BCReg kidx;
+	t = lj_tab_new(fs->L, needarr ? narr : 0, hsize2hbits(nhash));
+	kidx = const_gc(fs, obj2gco(t), LJ_TTAB);
+	fs->bcbase[pc].ins = BCINS_AD(BC_TDUP, freg-1, kidx);
+      }
+      vcall = 0;
+      expr_kvalue(fs, &k, &key);
+      v = lj_tab_set(fs->L, t, &k);
+      lj_gc_anybarriert(fs->L, t);
+      if (expr_isk_nojump(&val)) {  /* Add const key/value to template table. */
+	expr_kvalue(fs, v, &val);
+      } else {  /* Otherwise create dummy string key (avoids lj_tab_newkey). */
+	settabV(fs->L, v, t);  /* Preserve key with table itself as value. */
+	fixt = 1;   /* Fix this later, after all resizes. */
+	goto nonconst;
+      }
+    } else {
+    nonconst:
+      if (val.k != VCALL) { expr_toanyreg(fs, &val); vcall = 0; }
+      if (expr_isk(&key)) expr_index(fs, e, &key);
+      bcemit_store(fs, e, &val);
+    }
+    fs->freereg = freg;
+    if (!lex_opt(ls, ',') && !lex_opt(ls, ';')) break;
+  }
+  lex_match(ls, '}', '{', line);
+  if (vcall) {
+    BCInsLine *ilp = &fs->bcbase[fs->pc-1];
+    ExpDesc en;
+    lj_assertFS(bc_a(ilp->ins) == freg &&
+		bc_op(ilp->ins) == (narr > 256 ? BC_TSETV : BC_TSETB),
+		"bad CALL code generation");
+    expr_init(&en, VKNUM, 0);
+    en.u.nval.u32.lo = narr-1;
+    en.u.nval.u32.hi = 0x43300000;  /* Biased integer to avoid denormals. */
+    if (narr > 256) { fs->pc--; ilp--; }
+    ilp->ins = BCINS_AD(BC_TSETM, freg, const_num(fs, &en));
+    setbc_b(&ilp[-1].ins, 0);
+  }
+  if (pc == fs->pc-1) {  /* Make expr relocable if possible. */
+    e->u.s.info = pc;
+    fs->freereg--;
+    e->k = VRELOCABLE;
+  } else {
+    e->k = VNONRELOC;  /* May have been changed by expr_index. */
+  }
+  if (!t) {  /* Construct TNEW RD: hhhhhaaaaaaaaaaa. */
+    BCIns *ip = &fs->bcbase[pc].ins;
+    if (!needarr) narr = 0;
+    else if (narr < 3) narr = 3;
+    else if (narr > 0x7ff) narr = 0x7ff;
+    setbc_d(ip, narr|(hsize2hbits(nhash)<<11));
+  } else {
+    if (needarr && t->asize < narr)
+      lj_tab_reasize(fs->L, t, narr-1);
+    if (fixt) {  /* Fix value for dummy keys in template table. */
+      Node *node = noderef(t->node);
+      uint32_t i, hmask = t->hmask;
+      for (i = 0; i <= hmask; i++) {
+	Node *n = &node[i];
+	if (tvistab(&n->val)) {
+	  lj_assertFS(tabV(&n->val) == t, "bad dummy key in template table");
+	  setnilV(&n->val);  /* Turn value into nil. */
+	}
+      }
+    }
+    lj_gc_check(fs->L);
+  }
+}
+
+/* Parse function parameters. */
+static BCReg parse_params(LexState *ls, int needself)
+{
+  FuncState *fs = ls->fs;
+  BCReg nparams = 0;
+  lex_check(ls, '(');
+  if (needself)
+    var_new_lit(ls, nparams++, "self");
+  if (ls->tok != ')') {
+    do {
+      if (ls->tok == TK_name || (!LJ_52 && ls->tok == TK_goto)) {
+	var_new(ls, nparams++, lex_str(ls));
+      } else if (ls->tok == TK_dots) {
+	lj_lex_next(ls);
+	fs->flags |= PROTO_VARARG;
+	break;
+      } else {
+	err_syntax(ls, LJ_ERR_XPARAM);
+      }
+    } while (lex_opt(ls, ','));
+  }
+  var_add(ls, nparams);
+  lj_assertFS(fs->nactvar == nparams, "bad regalloc");
+  bcreg_reserve(fs, nparams);
+  lex_check(ls, ')');
+  return nparams;
+}
+
+/* Forward declaration. */
+static void parse_chunk(LexState *ls);
+
+/* Parse body of a function. */
+static void parse_body(LexState *ls, ExpDesc *e, int needself, BCLine line)
+{
+  FuncState fs, *pfs = ls->fs;
+  FuncScope bl;
+  GCproto *pt;
+  ptrdiff_t oldbase = pfs->bcbase - ls->bcstack;
+  fs_init(ls, &fs);
+  fscope_begin(&fs, &bl, 0);
+  fs.linedefined = line;
+  fs.numparams = (uint8_t)parse_params(ls, needself);
+  fs.bcbase = pfs->bcbase + pfs->pc;
+  fs.bclim = pfs->bclim - pfs->pc;
+  bcemit_AD(&fs, BC_FUNCF, 0, 0);  /* Placeholder. */
+  parse_chunk(ls);
+  if (ls->tok != TK_end) lex_match(ls, TK_end, TK_function, line);
+  pt = fs_finish(ls, (ls->lastline = ls->linenumber));
+  pfs->bcbase = ls->bcstack + oldbase;  /* May have been reallocated. */
+  pfs->bclim = (BCPos)(ls->sizebcstack - oldbase);
+  /* Store new prototype in the constant array of the parent. */
+  expr_init(e, VRELOCABLE,
+	    bcemit_AD(pfs, BC_FNEW, 0, const_gc(pfs, obj2gco(pt), LJ_TPROTO)));
+#if LJ_HASFFI
+  pfs->flags |= (fs.flags & PROTO_FFI);
+#endif
+  if (!(pfs->flags & PROTO_CHILD)) {
+    if (pfs->flags & PROTO_HAS_RETURN)
+      pfs->flags |= PROTO_FIXUP_RETURN;
+    pfs->flags |= PROTO_CHILD;
+  }
+  lj_lex_next(ls);
+}
+
+/* Parse expression list. Last expression is left open. */
+static BCReg expr_list(LexState *ls, ExpDesc *v)
+{
+  BCReg n = 1;
+  expr(ls, v);
+  while (lex_opt(ls, ',')) {
+    expr_tonextreg(ls->fs, v);
+    expr(ls, v);
+    n++;
+  }
+  return n;
+}
+
+/* Parse function argument list. */
+static void parse_args(LexState *ls, ExpDesc *e)
+{
+  FuncState *fs = ls->fs;
+  ExpDesc args;
+  BCIns ins;
+  BCReg base;
+  BCLine line = ls->linenumber;
+  if (ls->tok == '(') {
+#if !LJ_52
+    if (line != ls->lastline)
+      err_syntax(ls, LJ_ERR_XAMBIG);
+#endif
+    lj_lex_next(ls);
+    if (ls->tok == ')') {  /* f(). */
+      args.k = VVOID;
+    } else {
+      expr_list(ls, &args);
+      if (args.k == VCALL)  /* f(a, b, g()) or f(a, b, ...). */
+	setbc_b(bcptr(fs, &args), 0);  /* Pass on multiple results. */
+    }
+    lex_match(ls, ')', '(', line);
+  } else if (ls->tok == '{') {
+    expr_table(ls, &args);
+  } else if (ls->tok == TK_string) {
+    expr_init(&args, VKSTR, 0);
+    args.u.sval = strV(&ls->tokval);
+    lj_lex_next(ls);
+  } else {
+    err_syntax(ls, LJ_ERR_XFUNARG);
+    return;  /* Silence compiler. */
+  }
+  lj_assertFS(e->k == VNONRELOC, "bad expr type %d", e->k);
+  base = e->u.s.info;  /* Base register for call. */
+  if (args.k == VCALL) {
+    ins = BCINS_ABC(BC_CALLM, base, 2, args.u.s.aux - base - 1 - LJ_FR2);
+  } else {
+    if (args.k != VVOID)
+      expr_tonextreg(fs, &args);
+    ins = BCINS_ABC(BC_CALL, base, 2, fs->freereg - base - LJ_FR2);
+  }
+  expr_init(e, VCALL, bcemit_INS(fs, ins));
+  e->u.s.aux = base;
+  fs->bcbase[fs->pc - 1].line = line;
+  fs->freereg = base+1;  /* Leave one result by default. */
+}
+
+/* Parse primary expression. */
+static void expr_primary(LexState *ls, ExpDesc *v)
+{
+  FuncState *fs = ls->fs;
+  /* Parse prefix expression. */
+  if (ls->tok == '(') {
+    BCLine line = ls->linenumber;
+    lj_lex_next(ls);
+    expr(ls, v);
+    lex_match(ls, ')', '(', line);
+    expr_discharge(ls->fs, v);
+  } else if (ls->tok == TK_name || (!LJ_52 && ls->tok == TK_goto)) {
+    var_lookup(ls, v);
+  } else {
+    err_syntax(ls, LJ_ERR_XSYMBOL);
+  }
+  for (;;) {  /* Parse multiple expression suffixes. */
+    if (ls->tok == '.') {
+      expr_field(ls, v);
+    } else if (ls->tok == '[') {
+      ExpDesc key;
+      expr_toanyreg(fs, v);
+      expr_bracket(ls, &key);
+      expr_index(fs, v, &key);
+    } else if (ls->tok == ':') {
+      ExpDesc key;
+      lj_lex_next(ls);
+      expr_str(ls, &key);
+      bcemit_method(fs, v, &key);
+      parse_args(ls, v);
+    } else if (ls->tok == '(' || ls->tok == TK_string || ls->tok == '{') {
+      expr_tonextreg(fs, v);
+      if (LJ_FR2) bcreg_reserve(fs, 1);
+      parse_args(ls, v);
+    } else {
+      break;
+    }
+  }
+}
+
+/* Parse simple expression. */
+static void expr_simple(LexState *ls, ExpDesc *v)
+{
+  switch (ls->tok) {
+  case TK_number:
+    expr_init(v, (LJ_HASFFI && tviscdata(&ls->tokval)) ? VKCDATA : VKNUM, 0);
+    copyTV(ls->L, &v->u.nval, &ls->tokval);
+    break;
+  case TK_string:
+    expr_init(v, VKSTR, 0);
+    v->u.sval = strV(&ls->tokval);
+    break;
+  case TK_nil:
+    expr_init(v, VKNIL, 0);
+    break;
+  case TK_true:
+    expr_init(v, VKTRUE, 0);
+    break;
+  case TK_false:
+    expr_init(v, VKFALSE, 0);
+    break;
+  case TK_dots: {  /* Vararg. */
+    FuncState *fs = ls->fs;
+    BCReg base;
+    checkcond(ls, fs->flags & PROTO_VARARG, LJ_ERR_XDOTS);
+    bcreg_reserve(fs, 1);
+    base = fs->freereg-1;
+    expr_init(v, VCALL, bcemit_ABC(fs, BC_VARG, base, 2, fs->numparams));
+    v->u.s.aux = base;
+    break;
+  }
+  case '{':  /* Table constructor. */
+    expr_table(ls, v);
+    return;
+  case TK_function:
+    lj_lex_next(ls);
+    parse_body(ls, v, 0, ls->linenumber);
+    return;
+  default:
+    expr_primary(ls, v);
+    return;
+  }
+  lj_lex_next(ls);
+}
+
+/* Manage syntactic levels to avoid blowing up the stack. */
+static void synlevel_begin(LexState *ls)
+{
+  if (++ls->level >= LJ_MAX_XLEVEL)
+    lj_lex_error(ls, 0, LJ_ERR_XLEVELS);
+}
+
+#define synlevel_end(ls)	((ls)->level--)
+
+/* Convert token to binary operator. */
+static BinOpr token2binop(LexToken tok)
+{
+  switch (tok) {
+  case '+':	return OPR_ADD;
+  case '-':	return OPR_SUB;
+  case '*':	return OPR_MUL;
+  case '/':	return OPR_DIV;
+  case '%':	return OPR_MOD;
+  case '^':	return OPR_POW;
+  case TK_concat: return OPR_CONCAT;
+  case TK_ne:	return OPR_NE;
+  case TK_eq:	return OPR_EQ;
+  case '<':	return OPR_LT;
+  case TK_le:	return OPR_LE;
+  case '>':	return OPR_GT;
+  case TK_ge:	return OPR_GE;
+  case TK_and:	return OPR_AND;
+  case TK_or:	return OPR_OR;
+  default:	return OPR_NOBINOPR;
+  }
+}
+
+/* Priorities for each binary operator. ORDER OPR. */
+static const struct {
+  uint8_t left;		/* Left priority. */
+  uint8_t right;	/* Right priority. */
+} priority[] = {
+  {6,6}, {6,6}, {7,7}, {7,7}, {7,7},	/* ADD SUB MUL DIV MOD */
+  {10,9}, {5,4},			/* POW CONCAT (right associative) */
+  {3,3}, {3,3},				/* EQ NE */
+  {3,3}, {3,3}, {3,3}, {3,3},		/* LT GE GT LE */
+  {2,2}, {1,1}				/* AND OR */
+};
+
+#define UNARY_PRIORITY		8  /* Priority for unary operators. */
+
+/* Forward declaration. */
+static BinOpr expr_binop(LexState *ls, ExpDesc *v, uint32_t limit);
+
+/* Parse unary expression. */
+static void expr_unop(LexState *ls, ExpDesc *v)
+{
+  BCOp op;
+  if (ls->tok == TK_not) {
+    op = BC_NOT;
+  } else if (ls->tok == '-') {
+    op = BC_UNM;
+  } else if (ls->tok == '#') {
+    op = BC_LEN;
+  } else {
+    expr_simple(ls, v);
+    return;
+  }
+  lj_lex_next(ls);
+  expr_binop(ls, v, UNARY_PRIORITY);
+  bcemit_unop(ls->fs, op, v);
+}
+
+/* Parse binary expressions with priority higher than the limit. */
+static BinOpr expr_binop(LexState *ls, ExpDesc *v, uint32_t limit)
+{
+  BinOpr op;
+  synlevel_begin(ls);
+  expr_unop(ls, v);
+  op = token2binop(ls->tok);
+  while (op != OPR_NOBINOPR && priority[op].left > limit) {
+    ExpDesc v2;
+    BinOpr nextop;
+    lj_lex_next(ls);
+    bcemit_binop_left(ls->fs, op, v);
+    /* Parse binary expression with higher priority. */
+    nextop = expr_binop(ls, &v2, priority[op].right);
+    bcemit_binop(ls->fs, op, v, &v2);
+    op = nextop;
+  }
+  synlevel_end(ls);
+  return op;  /* Return unconsumed binary operator (if any). */
+}
+
+/* Parse expression. */
+static void expr(LexState *ls, ExpDesc *v)
+{
+  expr_binop(ls, v, 0);  /* Priority 0: parse whole expression. */
+}
+
+/* Assign expression to the next register. */
+static void expr_next(LexState *ls)
+{
+  ExpDesc e;
+  expr(ls, &e);
+  expr_tonextreg(ls->fs, &e);
+}
+
+/* Parse conditional expression. */
+static BCPos expr_cond(LexState *ls)
+{
+  ExpDesc v;
+  expr(ls, &v);
+  if (v.k == VKNIL) v.k = VKFALSE;
+  bcemit_branch_t(ls->fs, &v);
+  return v.f;
+}
+
+/* -- Assignments --------------------------------------------------------- */
+
+/* List of LHS variables. */
+typedef struct LHSVarList {
+  ExpDesc v;			/* LHS variable. */
+  struct LHSVarList *prev;	/* Link to previous LHS variable. */
+} LHSVarList;
+
+/* Eliminate write-after-read hazards for local variable assignment. */
+static void assign_hazard(LexState *ls, LHSVarList *lh, const ExpDesc *v)
+{
+  FuncState *fs = ls->fs;
+  BCReg reg = v->u.s.info;  /* Check against this variable. */
+  BCReg tmp = fs->freereg;  /* Rename to this temp. register (if needed). */
+  int hazard = 0;
+  for (; lh; lh = lh->prev) {
+    if (lh->v.k == VINDEXED) {
+      if (lh->v.u.s.info == reg) {  /* t[i], t = 1, 2 */
+	hazard = 1;
+	lh->v.u.s.info = tmp;
+      }
+      if (lh->v.u.s.aux == reg) {  /* t[i], i = 1, 2 */
+	hazard = 1;
+	lh->v.u.s.aux = tmp;
+      }
+    }
+  }
+  if (hazard) {
+    bcemit_AD(fs, BC_MOV, tmp, reg);  /* Rename conflicting variable. */
+    bcreg_reserve(fs, 1);
+  }
+}
+
+/* Adjust LHS/RHS of an assignment. */
+static void assign_adjust(LexState *ls, BCReg nvars, BCReg nexps, ExpDesc *e)
+{
+  FuncState *fs = ls->fs;
+  int32_t extra = (int32_t)nvars - (int32_t)nexps;
+  if (e->k == VCALL) {
+    extra++;  /* Compensate for the VCALL itself. */
+    if (extra < 0) extra = 0;
+    setbc_b(bcptr(fs, e), extra+1);  /* Fixup call results. */
+    if (extra > 1) bcreg_reserve(fs, (BCReg)extra-1);
+  } else {
+    if (e->k != VVOID)
+      expr_tonextreg(fs, e);  /* Close last expression. */
+    if (extra > 0) {  /* Leftover LHS are set to nil. */
+      BCReg reg = fs->freereg;
+      bcreg_reserve(fs, (BCReg)extra);
+      bcemit_nil(fs, reg, (BCReg)extra);
+    }
+  }
+  if (nexps > nvars)
+    ls->fs->freereg -= nexps - nvars;  /* Drop leftover regs. */
+}
+
+/* Recursively parse assignment statement. */
+static void parse_assignment(LexState *ls, LHSVarList *lh, BCReg nvars)
+{
+  ExpDesc e;
+  checkcond(ls, VLOCAL <= lh->v.k && lh->v.k <= VINDEXED, LJ_ERR_XSYNTAX);
+  if (lex_opt(ls, ',')) {  /* Collect LHS list and recurse upwards. */
+    LHSVarList vl;
+    vl.prev = lh;
+    expr_primary(ls, &vl.v);
+    if (vl.v.k == VLOCAL)
+      assign_hazard(ls, lh, &vl.v);
+    checklimit(ls->fs, ls->level + nvars, LJ_MAX_XLEVEL, "variable names");
+    parse_assignment(ls, &vl, nvars+1);
+  } else {  /* Parse RHS. */
+    BCReg nexps;
+    lex_check(ls, '=');
+    nexps = expr_list(ls, &e);
+    if (nexps == nvars) {
+      if (e.k == VCALL) {
+	if (bc_op(*bcptr(ls->fs, &e)) == BC_VARG) {  /* Vararg assignment. */
+	  ls->fs->freereg--;
+	  e.k = VRELOCABLE;
+	} else {  /* Multiple call results. */
+	  e.u.s.info = e.u.s.aux;  /* Base of call is not relocatable. */
+	  e.k = VNONRELOC;
+	}
+      }
+      bcemit_store(ls->fs, &lh->v, &e);
+      return;
+    }
+    assign_adjust(ls, nvars, nexps, &e);
+  }
+  /* Assign RHS to LHS and recurse downwards. */
+  expr_init(&e, VNONRELOC, ls->fs->freereg-1);
+  bcemit_store(ls->fs, &lh->v, &e);
+}
+
+/* Parse call statement or assignment. */
+static void parse_call_assign(LexState *ls)
+{
+  FuncState *fs = ls->fs;
+  LHSVarList vl;
+  expr_primary(ls, &vl.v);
+  if (vl.v.k == VCALL) {  /* Function call statement. */
+    setbc_b(bcptr(fs, &vl.v), 1);  /* No results. */
+  } else {  /* Start of an assignment. */
+    vl.prev = NULL;
+    parse_assignment(ls, &vl, 1);
+  }
+}
+
+/* Parse 'local' statement. */
+static void parse_local(LexState *ls)
+{
+  if (lex_opt(ls, TK_function)) {  /* Local function declaration. */
+    ExpDesc v, b;
+    FuncState *fs = ls->fs;
+    var_new(ls, 0, lex_str(ls));
+    expr_init(&v, VLOCAL, fs->freereg);
+    v.u.s.aux = fs->varmap[fs->freereg];
+    bcreg_reserve(fs, 1);
+    var_add(ls, 1);
+    parse_body(ls, &b, 0, ls->linenumber);
+    /* bcemit_store(fs, &v, &b) without setting VSTACK_VAR_RW. */
+    expr_free(fs, &b);
+    expr_toreg(fs, &b, v.u.s.info);
+    /* The upvalue is in scope, but the local is only valid after the store. */
+    var_get(ls, fs, fs->nactvar - 1).startpc = fs->pc;
+  } else {  /* Local variable declaration. */
+    ExpDesc e;
+    BCReg nexps, nvars = 0;
+    do {  /* Collect LHS. */
+      var_new(ls, nvars++, lex_str(ls));
+    } while (lex_opt(ls, ','));
+    if (lex_opt(ls, '=')) {  /* Optional RHS. */
+      nexps = expr_list(ls, &e);
+    } else {  /* Or implicitly set to nil. */
+      e.k = VVOID;
+      nexps = 0;
+    }
+    assign_adjust(ls, nvars, nexps, &e);
+    var_add(ls, nvars);
+  }
+}
+
+/* Parse 'function' statement. */
+static void parse_func(LexState *ls, BCLine line)
+{
+  FuncState *fs;
+  ExpDesc v, b;
+  int needself = 0;
+  lj_lex_next(ls);  /* Skip 'function'. */
+  /* Parse function name. */
+  var_lookup(ls, &v);
+  while (ls->tok == '.')  /* Multiple dot-separated fields. */
+    expr_field(ls, &v);
+  if (ls->tok == ':') {  /* Optional colon to signify method call. */
+    needself = 1;
+    expr_field(ls, &v);
+  }
+  parse_body(ls, &b, needself, line);
+  fs = ls->fs;
+  bcemit_store(fs, &v, &b);
+  fs->bcbase[fs->pc - 1].line = line;  /* Set line for the store. */
+}
+
+/* -- Control transfer statements ----------------------------------------- */
+
+/* Check for end of block. */
+static int parse_isend(LexToken tok)
+{
+  switch (tok) {
+  case TK_else: case TK_elseif: case TK_end: case TK_until: case TK_eof:
+    return 1;
+  default:
+    return 0;
+  }
+}
+
+/* Parse 'return' statement. */
+static void parse_return(LexState *ls)
+{
+  BCIns ins;
+  FuncState *fs = ls->fs;
+  lj_lex_next(ls);  /* Skip 'return'. */
+  fs->flags |= PROTO_HAS_RETURN;
+  if (parse_isend(ls->tok) || ls->tok == ';') {  /* Bare return. */
+    ins = BCINS_AD(BC_RET0, 0, 1);
+  } else {  /* Return with one or more values. */
+    ExpDesc e;  /* Receives the _last_ expression in the list. */
+    BCReg nret = expr_list(ls, &e);
+    if (nret == 1) {  /* Return one result. */
+      if (e.k == VCALL) {  /* Check for tail call. */
+	BCIns *ip = bcptr(fs, &e);
+	/* It doesn't pay off to add BC_VARGT just for 'return ...'. */
+	if (bc_op(*ip) == BC_VARG) goto notailcall;
+	fs->pc--;
+	ins = BCINS_AD(bc_op(*ip)-BC_CALL+BC_CALLT, bc_a(*ip), bc_c(*ip));
+      } else {  /* Can return the result from any register. */
+	ins = BCINS_AD(BC_RET1, expr_toanyreg(fs, &e), 2);
+      }
+    } else {
+      if (e.k == VCALL) {  /* Append all results from a call. */
+      notailcall:
+	setbc_b(bcptr(fs, &e), 0);
+	ins = BCINS_AD(BC_RETM, fs->nactvar, e.u.s.aux - fs->nactvar);
+      } else {
+	expr_tonextreg(fs, &e);  /* Force contiguous registers. */
+	ins = BCINS_AD(BC_RET, fs->nactvar, nret+1);
+      }
+    }
+  }
+  if (fs->flags & PROTO_CHILD)
+    bcemit_AJ(fs, BC_UCLO, 0, 0);  /* May need to close upvalues first. */
+  bcemit_INS(fs, ins);
+}
+
+/* Parse 'break' statement. */
+static void parse_break(LexState *ls)
+{
+  ls->fs->bl->flags |= FSCOPE_BREAK;
+  gola_new(ls, NAME_BREAK, VSTACK_GOTO, bcemit_jmp(ls->fs));
+}
+
+/* Parse 'goto' statement. */
+static void parse_goto(LexState *ls)
+{
+  FuncState *fs = ls->fs;
+  GCstr *name = lex_str(ls);
+  VarInfo *vl = gola_findlabel(ls, name);
+  if (vl)  /* Treat backwards goto within same scope like a loop. */
+    bcemit_AJ(fs, BC_LOOP, vl->slot, -1);  /* No BC range check. */
+  fs->bl->flags |= FSCOPE_GOLA;
+  gola_new(ls, name, VSTACK_GOTO, bcemit_jmp(fs));
+}
+
+/* Parse label. */
+static void parse_label(LexState *ls)
+{
+  FuncState *fs = ls->fs;
+  GCstr *name;
+  MSize idx;
+  fs->lasttarget = fs->pc;
+  fs->bl->flags |= FSCOPE_GOLA;
+  lj_lex_next(ls);  /* Skip '::'. */
+  name = lex_str(ls);
+  if (gola_findlabel(ls, name))
+    lj_lex_error(ls, 0, LJ_ERR_XLDUP, strdata(name));
+  idx = gola_new(ls, name, VSTACK_LABEL, fs->pc);
+  lex_check(ls, TK_label);
+  /* Recursively parse trailing statements: labels and ';' (Lua 5.2 only). */
+  for (;;) {
+    if (ls->tok == TK_label) {
+      synlevel_begin(ls);
+      parse_label(ls);
+      synlevel_end(ls);
+    } else if (LJ_52 && ls->tok == ';') {
+      lj_lex_next(ls);
+    } else {
+      break;
+    }
+  }
+  /* Trailing label is considered to be outside of scope. */
+  if (parse_isend(ls->tok) && ls->tok != TK_until)
+    ls->vstack[idx].slot = fs->bl->nactvar;
+  gola_resolve(ls, fs->bl, idx);
+}
+
+/* -- Blocks, loops and conditional statements ---------------------------- */
+
+/* Parse a block. */
+static void parse_block(LexState *ls)
+{
+  FuncState *fs = ls->fs;
+  FuncScope bl;
+  fscope_begin(fs, &bl, 0);
+  parse_chunk(ls);
+  fscope_end(fs);
+}
+
+/* Parse 'while' statement. */
+static void parse_while(LexState *ls, BCLine line)
+{
+  FuncState *fs = ls->fs;
+  BCPos start, loop, condexit;
+  FuncScope bl;
+  lj_lex_next(ls);  /* Skip 'while'. */
+  start = fs->lasttarget = fs->pc;
+  condexit = expr_cond(ls);
+  fscope_begin(fs, &bl, FSCOPE_LOOP);
+  lex_check(ls, TK_do);
+  loop = bcemit_AD(fs, BC_LOOP, fs->nactvar, 0);
+  parse_block(ls);
+  jmp_patch(fs, bcemit_jmp(fs), start);
+  lex_match(ls, TK_end, TK_while, line);
+  fscope_end(fs);
+  jmp_tohere(fs, condexit);
+  jmp_patchins(fs, loop, fs->pc);
+}
+
+/* Parse 'repeat' statement. */
+static void parse_repeat(LexState *ls, BCLine line)
+{
+  FuncState *fs = ls->fs;
+  BCPos loop = fs->lasttarget = fs->pc;
+  BCPos condexit;
+  FuncScope bl1, bl2;
+  fscope_begin(fs, &bl1, FSCOPE_LOOP);  /* Breakable loop scope. */
+  fscope_begin(fs, &bl2, 0);  /* Inner scope. */
+  lj_lex_next(ls);  /* Skip 'repeat'. */
+  bcemit_AD(fs, BC_LOOP, fs->nactvar, 0);
+  parse_chunk(ls);
+  lex_match(ls, TK_until, TK_repeat, line);
+  condexit = expr_cond(ls);  /* Parse condition (still inside inner scope). */
+  if (!(bl2.flags & FSCOPE_UPVAL)) {  /* No upvalues? Just end inner scope. */
+    fscope_end(fs);
+  } else {  /* Otherwise generate: cond: UCLO+JMP out, !cond: UCLO+JMP loop. */
+    parse_break(ls);  /* Break from loop and close upvalues. */
+    jmp_tohere(fs, condexit);
+    fscope_end(fs);  /* End inner scope and close upvalues. */
+    condexit = bcemit_jmp(fs);
+  }
+  jmp_patch(fs, condexit, loop);  /* Jump backwards if !cond. */
+  jmp_patchins(fs, loop, fs->pc);
+  fscope_end(fs);  /* End loop scope. */
+}
+
+/* Parse numeric 'for'. */
+static void parse_for_num(LexState *ls, GCstr *varname, BCLine line)
+{
+  FuncState *fs = ls->fs;
+  BCReg base = fs->freereg;
+  FuncScope bl;
+  BCPos loop, loopend;
+  /* Hidden control variables. */
+  var_new_fixed(ls, FORL_IDX, VARNAME_FOR_IDX);
+  var_new_fixed(ls, FORL_STOP, VARNAME_FOR_STOP);
+  var_new_fixed(ls, FORL_STEP, VARNAME_FOR_STEP);
+  /* Visible copy of index variable. */
+  var_new(ls, FORL_EXT, varname);
+  lex_check(ls, '=');
+  expr_next(ls);
+  lex_check(ls, ',');
+  expr_next(ls);
+  if (lex_opt(ls, ',')) {
+    expr_next(ls);
+  } else {
+    bcemit_AD(fs, BC_KSHORT, fs->freereg, 1);  /* Default step is 1. */
+    bcreg_reserve(fs, 1);
+  }
+  var_add(ls, 3);  /* Hidden control variables. */
+  lex_check(ls, TK_do);
+  loop = bcemit_AJ(fs, BC_FORI, base, NO_JMP);
+  fscope_begin(fs, &bl, 0);  /* Scope for visible variables. */
+  var_add(ls, 1);
+  bcreg_reserve(fs, 1);
+  parse_block(ls);
+  fscope_end(fs);
+  /* Perform loop inversion. Loop control instructions are at the end. */
+  loopend = bcemit_AJ(fs, BC_FORL, base, NO_JMP);
+  fs->bcbase[loopend].line = line;  /* Fix line for control ins. */
+  jmp_patchins(fs, loopend, loop+1);
+  jmp_patchins(fs, loop, fs->pc);
+}
+
+/* Try to predict whether the iterator is next() and specialize the bytecode.
+** Detecting next() and pairs() by name is simplistic, but quite effective.
+** The interpreter backs off if the check for the closure fails at runtime.
+*/
+static int predict_next(LexState *ls, FuncState *fs, BCPos pc)
+{
+  BCIns ins = fs->bcbase[pc].ins;
+  GCstr *name;
+  cTValue *o;
+  switch (bc_op(ins)) {
+  case BC_MOV:
+    name = gco2str(gcref(var_get(ls, fs, bc_d(ins)).name));
+    break;
+  case BC_UGET:
+    name = gco2str(gcref(ls->vstack[fs->uvmap[bc_d(ins)]].name));
+    break;
+  case BC_GGET:
+    /* There's no inverse index (yet), so lookup the strings. */
+    o = lj_tab_getstr(fs->kt, lj_str_newlit(ls->L, "pairs"));
+    if (o && tvhaskslot(o) && tvkslot(o) == bc_d(ins))
+      return 1;
+    o = lj_tab_getstr(fs->kt, lj_str_newlit(ls->L, "next"));
+    if (o && tvhaskslot(o) && tvkslot(o) == bc_d(ins))
+      return 1;
+    return 0;
+  default:
+    return 0;
+  }
+  return (name->len == 5 && !strcmp(strdata(name), "pairs")) ||
+	 (name->len == 4 && !strcmp(strdata(name), "next"));
+}
+
+/* Parse 'for' iterator. */
+static void parse_for_iter(LexState *ls, GCstr *indexname)
+{
+  FuncState *fs = ls->fs;
+  ExpDesc e;
+  BCReg nvars = 0;
+  BCLine line;
+  BCReg base = fs->freereg + 3;
+  BCPos loop, loopend, exprpc = fs->pc;
+  FuncScope bl;
+  int isnext;
+  /* Hidden control variables. */
+  var_new_fixed(ls, nvars++, VARNAME_FOR_GEN);
+  var_new_fixed(ls, nvars++, VARNAME_FOR_STATE);
+  var_new_fixed(ls, nvars++, VARNAME_FOR_CTL);
+  /* Visible variables returned from iterator. */
+  var_new(ls, nvars++, indexname);
+  while (lex_opt(ls, ','))
+    var_new(ls, nvars++, lex_str(ls));
+  lex_check(ls, TK_in);
+  line = ls->linenumber;
+  assign_adjust(ls, 3, expr_list(ls, &e), &e);
+  /* The iterator needs another 3 [4] slots (func [pc] | state ctl). */
+  bcreg_bump(fs, 3+LJ_FR2);
+  isnext = (nvars <= 5 && predict_next(ls, fs, exprpc));
+  var_add(ls, 3);  /* Hidden control variables. */
+  lex_check(ls, TK_do);
+  loop = bcemit_AJ(fs, isnext ? BC_ISNEXT : BC_JMP, base, NO_JMP);
+  fscope_begin(fs, &bl, 0);  /* Scope for visible variables. */
+  var_add(ls, nvars-3);
+  bcreg_reserve(fs, nvars-3);
+  parse_block(ls);
+  fscope_end(fs);
+  /* Perform loop inversion. Loop control instructions are at the end. */
+  jmp_patchins(fs, loop, fs->pc);
+  bcemit_ABC(fs, isnext ? BC_ITERN : BC_ITERC, base, nvars-3+1, 2+1);
+  loopend = bcemit_AJ(fs, BC_ITERL, base, NO_JMP);
+  fs->bcbase[loopend-1].line = line;  /* Fix line for control ins. */
+  fs->bcbase[loopend].line = line;
+  jmp_patchins(fs, loopend, loop+1);
+}
+
+/* Parse 'for' statement. */
+static void parse_for(LexState *ls, BCLine line)
+{
+  FuncState *fs = ls->fs;
+  GCstr *varname;
+  FuncScope bl;
+  fscope_begin(fs, &bl, FSCOPE_LOOP);
+  lj_lex_next(ls);  /* Skip 'for'. */
+  varname = lex_str(ls);  /* Get first variable name. */
+  if (ls->tok == '=')
+    parse_for_num(ls, varname, line);
+  else if (ls->tok == ',' || ls->tok == TK_in)
+    parse_for_iter(ls, varname);
+  else
+    err_syntax(ls, LJ_ERR_XFOR);
+  lex_match(ls, TK_end, TK_for, line);
+  fscope_end(fs);  /* Resolve break list. */
+}
+
+/* Parse condition and 'then' block. */
+static BCPos parse_then(LexState *ls)
+{
+  BCPos condexit;
+  lj_lex_next(ls);  /* Skip 'if' or 'elseif'. */
+  condexit = expr_cond(ls);
+  lex_check(ls, TK_then);
+  parse_block(ls);
+  return condexit;
+}
+
+/* Parse 'if' statement. */
+static void parse_if(LexState *ls, BCLine line)
+{
+  FuncState *fs = ls->fs;
+  BCPos flist;
+  BCPos escapelist = NO_JMP;
+  flist = parse_then(ls);
+  while (ls->tok == TK_elseif) {  /* Parse multiple 'elseif' blocks. */
+    jmp_append(fs, &escapelist, bcemit_jmp(fs));
+    jmp_tohere(fs, flist);
+    flist = parse_then(ls);
+  }
+  if (ls->tok == TK_else) {  /* Parse optional 'else' block. */
+    jmp_append(fs, &escapelist, bcemit_jmp(fs));
+    jmp_tohere(fs, flist);
+    lj_lex_next(ls);  /* Skip 'else'. */
+    parse_block(ls);
+  } else {
+    jmp_append(fs, &escapelist, flist);
+  }
+  jmp_tohere(fs, escapelist);
+  lex_match(ls, TK_end, TK_if, line);
+}
+
+/* -- Parse statements ---------------------------------------------------- */
+
+/* Parse a statement. Returns 1 if it must be the last one in a chunk. */
+static int parse_stmt(LexState *ls)
+{
+  BCLine line = ls->linenumber;
+  switch (ls->tok) {
+  case TK_if:
+    parse_if(ls, line);
+    break;
+  case TK_while:
+    parse_while(ls, line);
+    break;
+  case TK_do:
+    lj_lex_next(ls);
+    parse_block(ls);
+    lex_match(ls, TK_end, TK_do, line);
+    break;
+  case TK_for:
+    parse_for(ls, line);
+    break;
+  case TK_repeat:
+    parse_repeat(ls, line);
+    break;
+  case TK_function:
+    parse_func(ls, line);
+    break;
+  case TK_local:
+    lj_lex_next(ls);
+    parse_local(ls);
+    break;
+  case TK_return:
+    parse_return(ls);
+    return 1;  /* Must be last. */
+  case TK_break:
+    lj_lex_next(ls);
+    parse_break(ls);
+    return !LJ_52;  /* Must be last in Lua 5.1. */
+#if LJ_52
+  case ';':
+    lj_lex_next(ls);
+    break;
+#endif
+  case TK_label:
+    parse_label(ls);
+    break;
+  case TK_goto:
+    if (LJ_52 || lj_lex_lookahead(ls) == TK_name) {
+      lj_lex_next(ls);
+      parse_goto(ls);
+      break;
+    }
+    /* fallthrough */
+  default:
+    parse_call_assign(ls);
+    break;
+  }
+  return 0;
+}
+
+/* A chunk is a list of statements optionally separated by semicolons. */
+static void parse_chunk(LexState *ls)
+{
+  int islast = 0;
+  synlevel_begin(ls);
+  while (!islast && !parse_isend(ls->tok)) {
+    islast = parse_stmt(ls);
+    lex_opt(ls, ';');
+    lj_assertLS(ls->fs->framesize >= ls->fs->freereg &&
+		ls->fs->freereg >= ls->fs->nactvar,
+		"bad regalloc");
+    ls->fs->freereg = ls->fs->nactvar;  /* Free registers after each stmt. */
+  }
+  synlevel_end(ls);
+}
+
+/* Entry point of bytecode parser. */
+GCproto *lj_parse(LexState *ls)
+{
+  FuncState fs;
+  FuncScope bl;
+  GCproto *pt;
+  lua_State *L = ls->L;
+#ifdef LUAJIT_DISABLE_DEBUGINFO
+  ls->chunkname = lj_str_newlit(L, "=");
+#else
+  ls->chunkname = lj_str_newz(L, ls->chunkarg);
+#endif
+  setstrV(L, L->top, ls->chunkname);  /* Anchor chunkname string. */
+  incr_top(L);
+  ls->level = 0;
+  fs_init(ls, &fs);
+  fs.linedefined = 0;
+  fs.numparams = 0;
+  fs.bcbase = NULL;
+  fs.bclim = 0;
+  fs.flags |= PROTO_VARARG;  /* Main chunk is always a vararg func. */
+  fscope_begin(&fs, &bl, 0);
+  bcemit_AD(&fs, BC_FUNCV, 0, 0);  /* Placeholder. */
+  lj_lex_next(ls);  /* Read-ahead first token. */
+  parse_chunk(ls);
+  if (ls->tok != TK_eof)
+    err_token(ls, TK_eof);
+  pt = fs_finish(ls, ls->linenumber);
+  L->top--;  /* Drop chunkname. */
+  lj_assertL(fs.prev == NULL && ls->fs == NULL, "mismatched frame nesting");
+  lj_assertL(pt->sizeuv == 0, "toplevel proto has upvalues");
+  return pt;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_parse.h b/libs/luajit-cmake/luajit/src/lj_parse.h
new file mode 100644
index 0000000..4206f00
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_parse.h
@@ -0,0 +1,18 @@
+/*
+** Lua parser (source code -> bytecode).
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_PARSE_H
+#define _LJ_PARSE_H
+
+#include "lj_obj.h"
+#include "lj_lex.h"
+
+LJ_FUNC GCproto *lj_parse(LexState *ls);
+LJ_FUNC GCstr *lj_parse_keepstr(LexState *ls, const char *str, size_t l);
+#if LJ_HASFFI
+LJ_FUNC void lj_parse_keepcdata(LexState *ls, TValue *tv, GCcdata *cd);
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_prng.c b/libs/luajit-cmake/luajit/src/lj_prng.c
new file mode 100644
index 0000000..01935e5
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_prng.c
@@ -0,0 +1,259 @@
+/*
+** Pseudo-random number generation.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_prng_c
+#define LUA_CORE
+
+/* To get the syscall prototype. */
+#if defined(__linux__) && !defined(_GNU_SOURCE)
+#define _GNU_SOURCE
+#endif
+
+#include "lj_def.h"
+#include "lj_arch.h"
+#include "lj_prng.h"
+
+/* -- PRNG step function -------------------------------------------------- */
+
+/* This implements a Tausworthe PRNG with period 2^223. Based on:
+**   Tables of maximally-equidistributed combined LFSR generators,
+**   Pierre L'Ecuyer, 1991, table 3, 1st entry.
+** Full-period ME-CF generator with L=64, J=4, k=223, N1=49.
+**
+** Important note: This PRNG is NOT suitable for cryptographic use!
+**
+** But it works fine for math.random(), which has an API that's not
+** suitable for cryptography, anyway.
+**
+** When used as a securely seeded global PRNG, it substantially raises
+** the difficulty for various attacks on the VM.
+*/
+
+/* Update generator i and compute a running xor of all states. */
+#define TW223_GEN(rs, z, r, i, k, q, s) \
+  z = rs->u[i]; \
+  z = (((z<<q)^z) >> (k-s)) ^ ((z&((uint64_t)(int64_t)-1 << (64-k)))<<s); \
+  r ^= z; rs->u[i] = z;
+
+#define TW223_STEP(rs, z, r) \
+  TW223_GEN(rs, z, r, 0, 63, 31, 18) \
+  TW223_GEN(rs, z, r, 1, 58, 19, 28) \
+  TW223_GEN(rs, z, r, 2, 55, 24,  7) \
+  TW223_GEN(rs, z, r, 3, 47, 21,  8)
+
+/* PRNG step function with uint64_t result. */
+LJ_NOINLINE uint64_t LJ_FASTCALL lj_prng_u64(PRNGState *rs)
+{
+  uint64_t z, r = 0;
+  TW223_STEP(rs, z, r)
+  return r;
+}
+
+/* PRNG step function with double in uint64_t result. */
+LJ_NOINLINE uint64_t LJ_FASTCALL lj_prng_u64d(PRNGState *rs)
+{
+  uint64_t z, r = 0;
+  TW223_STEP(rs, z, r)
+  /* Returns a double bit pattern in the range 1.0 <= d < 2.0. */
+  return (r & U64x(000fffff,ffffffff)) | U64x(3ff00000,00000000);
+}
+
+/* Condition seed: ensure k[i] MSB of u[i] are non-zero. */
+static LJ_AINLINE void lj_prng_condition(PRNGState *rs)
+{
+  if (rs->u[0] < (1u << 1)) rs->u[0] += (1u << 1);
+  if (rs->u[1] < (1u << 6)) rs->u[1] += (1u << 6);
+  if (rs->u[2] < (1u << 9)) rs->u[2] += (1u << 9);
+  if (rs->u[3] < (1u << 17)) rs->u[3] += (1u << 17);
+}
+
+/* -- PRNG seeding from OS ------------------------------------------------ */
+
+#if LUAJIT_SECURITY_PRNG == 0
+
+/* Nothing to define. */
+
+#elif LJ_TARGET_XBOX360
+
+extern int XNetRandom(void *buf, unsigned int len);
+
+#elif LJ_TARGET_PS3
+
+extern int sys_get_random_number(void *buf, uint64_t len);
+
+#elif LJ_TARGET_PS4 || LJ_TARGET_PS5 || LJ_TARGET_PSVITA
+
+extern int sceRandomGetRandomNumber(void *buf, size_t len);
+
+#elif LJ_TARGET_NX
+
+#include <unistd.h>
+
+#elif LJ_TARGET_WINDOWS || LJ_TARGET_XBOXONE
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+
+#if LJ_TARGET_UWP || LJ_TARGET_XBOXONE
+/* Must use BCryptGenRandom. */
+#include <bcrypt.h>
+#pragma comment(lib, "bcrypt.lib")
+#else
+/* If you wonder about this mess, then search online for RtlGenRandom. */
+typedef BOOLEAN (WINAPI *PRGR)(void *buf, ULONG len);
+static PRGR libfunc_rgr;
+#endif
+
+#elif LJ_TARGET_POSIX
+
+#if LJ_TARGET_LINUX
+/* Avoid a dependency on glibc 2.25+ and use the getrandom syscall instead. */
+#include <sys/syscall.h>
+#else
+
+#if LJ_TARGET_OSX && !LJ_TARGET_IOS
+/*
+** In their infinite wisdom Apple decided to disallow getentropy() in the
+** iOS App Store. Even though the call is common to all BSD-ish OS, it's
+** recommended by Apple in their own security-related docs, and, to top
+** off the foolery, /dev/urandom is handled by the same kernel code,
+** yet accessing it is actually permitted (but less efficient).
+*/
+#include <Availability.h>
+#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 101200
+#define LJ_TARGET_HAS_GETENTROPY	1
+#endif
+#elif (LJ_TARGET_BSD && !defined(__NetBSD__)) || LJ_TARGET_SOLARIS || LJ_TARGET_CYGWIN || LJ_TARGET_QNX
+#define LJ_TARGET_HAS_GETENTROPY	1
+#endif
+
+#if LJ_TARGET_HAS_GETENTROPY
+extern int getentropy(void *buf, size_t len)
+#ifdef __ELF__
+  __attribute__((weak))
+#endif
+;
+#endif
+
+#endif
+
+/* For the /dev/urandom fallback. */
+#include <fcntl.h>
+#include <unistd.h>
+
+#endif
+
+#if LUAJIT_SECURITY_PRNG == 0
+
+/* If you really don't care about security, then define
+** LUAJIT_SECURITY_PRNG=0. This yields a predictable seed
+** and provides NO SECURITY against various attacks on the VM.
+**
+** BTW: This is NOT the way to get predictable table iteration,
+** predictable trace generation, predictable bytecode generation, etc.
+*/
+int LJ_FASTCALL lj_prng_seed_secure(PRNGState *rs)
+{
+  lj_prng_seed_fixed(rs);  /* The fixed seed is already conditioned. */
+  return 1;
+}
+
+#else
+
+/* Securely seed PRNG from system entropy. Returns 0 on failure. */
+int LJ_FASTCALL lj_prng_seed_secure(PRNGState *rs)
+{
+#if LJ_TARGET_XBOX360
+
+  if (XNetRandom(rs->u, (unsigned int)sizeof(rs->u)) == 0)
+    goto ok;
+
+#elif LJ_TARGET_PS3
+
+  if (sys_get_random_number(rs->u, sizeof(rs->u)) == 0)
+    goto ok;
+
+#elif LJ_TARGET_PS4 || LJ_TARGET_PS5 || LJ_TARGET_PSVITA
+
+  if (sceRandomGetRandomNumber(rs->u, sizeof(rs->u)) == 0)
+    goto ok;
+
+#elif LJ_TARGET_NX
+
+  if (getentropy(rs->u, sizeof(rs->u)) == 0)
+    goto ok;
+
+#elif LJ_TARGET_UWP || LJ_TARGET_XBOXONE
+
+  if (BCryptGenRandom(NULL, (PUCHAR)(rs->u), (ULONG)sizeof(rs->u),
+		      BCRYPT_USE_SYSTEM_PREFERRED_RNG) >= 0)
+    goto ok;
+
+#elif LJ_TARGET_WINDOWS
+
+  /* Keep the library loaded in case multiple VMs are started. */
+  if (!libfunc_rgr) {
+    HMODULE lib = LJ_WIN_LOADLIBA("advapi32.dll");
+    if (!lib) return 0;
+    libfunc_rgr = (PRGR)GetProcAddress(lib, "SystemFunction036");
+    if (!libfunc_rgr) return 0;
+  }
+  if (libfunc_rgr(rs->u, (ULONG)sizeof(rs->u)))
+    goto ok;
+
+#elif LJ_TARGET_POSIX
+
+#if LJ_TARGET_LINUX && defined(SYS_getrandom)
+
+  if (syscall(SYS_getrandom, rs->u, sizeof(rs->u), 0) == (long)sizeof(rs->u))
+    goto ok;
+
+#elif LJ_TARGET_HAS_GETENTROPY
+
+#ifdef __ELF__
+  if (&getentropy && getentropy(rs->u, sizeof(rs->u)) == 0)
+    goto ok;
+#else
+  if (getentropy(rs->u, sizeof(rs->u)) == 0)
+    goto ok;
+#endif
+
+#endif
+
+  /* Fallback to /dev/urandom. This may fail if the device is not
+  ** existent or accessible in a chroot or container, or if the process
+  ** or the OS ran out of file descriptors.
+  */
+  {
+    int fd = open("/dev/urandom", O_RDONLY|O_CLOEXEC);
+    if (fd != -1) {
+      ssize_t n = read(fd, rs->u, sizeof(rs->u));
+      (void)close(fd);
+      if (n == (ssize_t)sizeof(rs->u))
+	goto ok;
+    }
+  }
+
+#else
+
+  /* Add an elif above for your OS with a secure PRNG seed.
+  ** Note that fiddling around with rand(), getpid(), time() or coercing
+  ** ASLR to yield a few bits of randomness is not helpful.
+  ** If you don't want any security, then don't pretend you have any
+  ** and simply define LUAJIT_SECURITY_PRNG=0 for the build.
+  */
+#error "Missing secure PRNG seed for this OS"
+
+#endif
+  return 0;  /* Fail. */
+
+ok:
+  lj_prng_condition(rs);
+  (void)lj_prng_u64(rs);
+  return 1;  /* Success. */
+}
+
+#endif
+
diff --git a/libs/luajit-cmake/luajit/src/lj_prng.h b/libs/luajit-cmake/luajit/src/lj_prng.h
new file mode 100644
index 0000000..bdc958a
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_prng.h
@@ -0,0 +1,24 @@
+/*
+** Pseudo-random number generation.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_PRNG_H
+#define _LJ_PRNG_H
+
+#include "lj_def.h"
+
+LJ_FUNC int LJ_FASTCALL lj_prng_seed_secure(PRNGState *rs);
+LJ_FUNC uint64_t LJ_FASTCALL lj_prng_u64(PRNGState *rs);
+LJ_FUNC uint64_t LJ_FASTCALL lj_prng_u64d(PRNGState *rs);
+
+/* This is just the precomputed result of lib_math.c:random_seed(rs, 0.0). */
+static LJ_AINLINE void lj_prng_seed_fixed(PRNGState *rs)
+{
+  rs->u[0] = U64x(a0d27757,0a345b8c);
+  rs->u[1] = U64x(764a296c,5d4aa64f);
+  rs->u[2] = U64x(51220704,070adeaa);
+  rs->u[3] = U64x(2a2717b5,a7b7b927);
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_profile.c b/libs/luajit-cmake/luajit/src/lj_profile.c
new file mode 100644
index 0000000..4a13537
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_profile.c
@@ -0,0 +1,371 @@
+/*
+** Low-overhead profiling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_profile_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASPROFILE
+
+#include "lj_buf.h"
+#include "lj_frame.h"
+#include "lj_debug.h"
+#include "lj_dispatch.h"
+#if LJ_HASJIT
+#include "lj_jit.h"
+#include "lj_trace.h"
+#endif
+#include "lj_profile.h"
+
+#include "luajit.h"
+
+#if LJ_PROFILE_SIGPROF
+
+#include <sys/time.h>
+#include <signal.h>
+#define profile_lock(ps)	UNUSED(ps)
+#define profile_unlock(ps)	UNUSED(ps)
+
+#elif LJ_PROFILE_PTHREAD
+
+#include <pthread.h>
+#include <time.h>
+#if LJ_TARGET_PS3
+#include <sys/timer.h>
+#endif
+#define profile_lock(ps)	pthread_mutex_lock(&ps->lock)
+#define profile_unlock(ps)	pthread_mutex_unlock(&ps->lock)
+
+#elif LJ_PROFILE_WTHREAD
+
+#define WIN32_LEAN_AND_MEAN
+#if LJ_TARGET_XBOX360
+#include <xtl.h>
+#include <xbox.h>
+#else
+#include <windows.h>
+#endif
+typedef unsigned int (WINAPI *WMM_TPFUNC)(unsigned int);
+#define profile_lock(ps)	EnterCriticalSection(&ps->lock)
+#define profile_unlock(ps)	LeaveCriticalSection(&ps->lock)
+
+#endif
+
+/* Profiler state. */
+typedef struct ProfileState {
+  global_State *g;		/* VM state that started the profiler. */
+  luaJIT_profile_callback cb;	/* Profiler callback. */
+  void *data;			/* Profiler callback data. */
+  SBuf sb;			/* String buffer for stack dumps. */
+  int interval;			/* Sample interval in milliseconds. */
+  int samples;			/* Number of samples for next callback. */
+  int vmstate;			/* VM state when profile timer triggered. */
+#if LJ_PROFILE_SIGPROF
+  struct sigaction oldsa;	/* Previous SIGPROF state. */
+#elif LJ_PROFILE_PTHREAD
+  pthread_mutex_t lock;		/* g->hookmask update lock. */
+  pthread_t thread;		/* Timer thread. */
+  int abort;			/* Abort timer thread. */
+#elif LJ_PROFILE_WTHREAD
+#if LJ_TARGET_WINDOWS
+  HINSTANCE wmm;		/* WinMM library handle. */
+  WMM_TPFUNC wmm_tbp;		/* WinMM timeBeginPeriod function. */
+  WMM_TPFUNC wmm_tep;		/* WinMM timeEndPeriod function. */
+#endif
+  CRITICAL_SECTION lock;	/* g->hookmask update lock. */
+  HANDLE thread;		/* Timer thread. */
+  int abort;			/* Abort timer thread. */
+#endif
+} ProfileState;
+
+/* Sadly, we have to use a static profiler state.
+**
+** The SIGPROF variant needs a static pointer to the global state, anyway.
+** And it would be hard to extend for multiple threads. You can still use
+** multiple VMs in multiple threads, but only profile one at a time.
+*/
+static ProfileState profile_state;
+
+/* Default sample interval in milliseconds. */
+#define LJ_PROFILE_INTERVAL_DEFAULT	10
+
+/* -- Profiler/hook interaction ------------------------------------------- */
+
+#if !LJ_PROFILE_SIGPROF
+void LJ_FASTCALL lj_profile_hook_enter(global_State *g)
+{
+  ProfileState *ps = &profile_state;
+  if (ps->g) {
+    profile_lock(ps);
+    hook_enter(g);
+    profile_unlock(ps);
+  } else {
+    hook_enter(g);
+  }
+}
+
+void LJ_FASTCALL lj_profile_hook_leave(global_State *g)
+{
+  ProfileState *ps = &profile_state;
+  if (ps->g) {
+    profile_lock(ps);
+    hook_leave(g);
+    profile_unlock(ps);
+  } else {
+    hook_leave(g);
+  }
+}
+#endif
+
+/* -- Profile callbacks --------------------------------------------------- */
+
+/* Callback from profile hook (HOOK_PROFILE already cleared). */
+void LJ_FASTCALL lj_profile_interpreter(lua_State *L)
+{
+  ProfileState *ps = &profile_state;
+  global_State *g = G(L);
+  uint8_t mask;
+  profile_lock(ps);
+  mask = (g->hookmask & ~HOOK_PROFILE);
+  if (!(mask & HOOK_VMEVENT)) {
+    int samples = ps->samples;
+    ps->samples = 0;
+    g->hookmask = HOOK_VMEVENT;
+    lj_dispatch_update(g);
+    profile_unlock(ps);
+    ps->cb(ps->data, L, samples, ps->vmstate);  /* Invoke user callback. */
+    profile_lock(ps);
+    mask |= (g->hookmask & HOOK_PROFILE);
+  }
+  g->hookmask = mask;
+  lj_dispatch_update(g);
+  profile_unlock(ps);
+}
+
+/* Trigger profile hook. Asynchronous call from OS-specific profile timer. */
+static void profile_trigger(ProfileState *ps)
+{
+  global_State *g = ps->g;
+  uint8_t mask;
+  profile_lock(ps);
+  ps->samples++;  /* Always increment number of samples. */
+  mask = g->hookmask;
+  if (!(mask & (HOOK_PROFILE|HOOK_VMEVENT|HOOK_GC))) {  /* Set profile hook. */
+    int st = g->vmstate;
+    ps->vmstate = st >= 0 ? 'N' :
+		  st == ~LJ_VMST_INTERP ? 'I' :
+		  st == ~LJ_VMST_C ? 'C' :
+		  st == ~LJ_VMST_GC ? 'G' : 'J';
+    g->hookmask = (mask | HOOK_PROFILE);
+    lj_dispatch_update(g);
+  }
+  profile_unlock(ps);
+}
+
+/* -- OS-specific profile timer handling ---------------------------------- */
+
+#if LJ_PROFILE_SIGPROF
+
+/* SIGPROF handler. */
+static void profile_signal(int sig)
+{
+  UNUSED(sig);
+  profile_trigger(&profile_state);
+}
+
+/* Start profiling timer. */
+static void profile_timer_start(ProfileState *ps)
+{
+  int interval = ps->interval;
+  struct itimerval tm;
+  struct sigaction sa;
+  tm.it_value.tv_sec = tm.it_interval.tv_sec = interval / 1000;
+  tm.it_value.tv_usec = tm.it_interval.tv_usec = (interval % 1000) * 1000;
+  setitimer(ITIMER_PROF, &tm, NULL);
+#if LJ_TARGET_QNX
+  sa.sa_flags = 0;
+#else
+  sa.sa_flags = SA_RESTART;
+#endif
+  sa.sa_handler = profile_signal;
+  sigemptyset(&sa.sa_mask);
+  sigaction(SIGPROF, &sa, &ps->oldsa);
+}
+
+/* Stop profiling timer. */
+static void profile_timer_stop(ProfileState *ps)
+{
+  struct itimerval tm;
+  tm.it_value.tv_sec = tm.it_interval.tv_sec = 0;
+  tm.it_value.tv_usec = tm.it_interval.tv_usec = 0;
+  setitimer(ITIMER_PROF, &tm, NULL);
+  sigaction(SIGPROF, &ps->oldsa, NULL);
+}
+
+#elif LJ_PROFILE_PTHREAD
+
+/* POSIX timer thread. */
+static void *profile_thread(ProfileState *ps)
+{
+  int interval = ps->interval;
+#if !LJ_TARGET_PS3
+  struct timespec ts;
+  ts.tv_sec = interval / 1000;
+  ts.tv_nsec = (interval % 1000) * 1000000;
+#endif
+  while (1) {
+#if LJ_TARGET_PS3
+    sys_timer_usleep(interval * 1000);
+#else
+    nanosleep(&ts, NULL);
+#endif
+    if (ps->abort) break;
+    profile_trigger(ps);
+  }
+  return NULL;
+}
+
+/* Start profiling timer thread. */
+static void profile_timer_start(ProfileState *ps)
+{
+  pthread_mutex_init(&ps->lock, 0);
+  ps->abort = 0;
+  pthread_create(&ps->thread, NULL, (void *(*)(void *))profile_thread, ps);
+}
+
+/* Stop profiling timer thread. */
+static void profile_timer_stop(ProfileState *ps)
+{
+  ps->abort = 1;
+  pthread_join(ps->thread, NULL);
+  pthread_mutex_destroy(&ps->lock);
+}
+
+#elif LJ_PROFILE_WTHREAD
+
+/* Windows timer thread. */
+static DWORD WINAPI profile_thread(void *psx)
+{
+  ProfileState *ps = (ProfileState *)psx;
+  int interval = ps->interval;
+#if LJ_TARGET_WINDOWS && !LJ_TARGET_UWP
+  ps->wmm_tbp(interval);
+#endif
+  while (1) {
+    Sleep(interval);
+    if (ps->abort) break;
+    profile_trigger(ps);
+  }
+#if LJ_TARGET_WINDOWS && !LJ_TARGET_UWP
+  ps->wmm_tep(interval);
+#endif
+  return 0;
+}
+
+/* Start profiling timer thread. */
+static void profile_timer_start(ProfileState *ps)
+{
+#if LJ_TARGET_WINDOWS && !LJ_TARGET_UWP
+  if (!ps->wmm) {  /* Load WinMM library on-demand. */
+    ps->wmm = LJ_WIN_LOADLIBA("winmm.dll");
+    if (ps->wmm) {
+      ps->wmm_tbp = (WMM_TPFUNC)GetProcAddress(ps->wmm, "timeBeginPeriod");
+      ps->wmm_tep = (WMM_TPFUNC)GetProcAddress(ps->wmm, "timeEndPeriod");
+      if (!ps->wmm_tbp || !ps->wmm_tep) {
+	ps->wmm = NULL;
+	return;
+      }
+    }
+  }
+#endif
+  InitializeCriticalSection(&ps->lock);
+  ps->abort = 0;
+  ps->thread = CreateThread(NULL, 0, profile_thread, ps, 0, NULL);
+}
+
+/* Stop profiling timer thread. */
+static void profile_timer_stop(ProfileState *ps)
+{
+  ps->abort = 1;
+  WaitForSingleObject(ps->thread, INFINITE);
+  DeleteCriticalSection(&ps->lock);
+}
+
+#endif
+
+/* -- Public profiling API ------------------------------------------------ */
+
+/* Start profiling. */
+LUA_API void luaJIT_profile_start(lua_State *L, const char *mode,
+				  luaJIT_profile_callback cb, void *data)
+{
+  ProfileState *ps = &profile_state;
+  int interval = LJ_PROFILE_INTERVAL_DEFAULT;
+  while (*mode) {
+    int m = *mode++;
+    switch (m) {
+    case 'i':
+      interval = 0;
+      while (*mode >= '0' && *mode <= '9')
+	interval = interval * 10 + (*mode++ - '0');
+      if (interval <= 0) interval = 1;
+      break;
+#if LJ_HASJIT
+    case 'l': case 'f':
+      L2J(L)->prof_mode = m;
+      lj_trace_flushall(L);
+      break;
+#endif
+    default:  /* Ignore unknown mode chars. */
+      break;
+    }
+  }
+  if (ps->g) {
+    luaJIT_profile_stop(L);
+    if (ps->g) return;  /* Profiler in use by another VM. */
+  }
+  ps->g = G(L);
+  ps->interval = interval;
+  ps->cb = cb;
+  ps->data = data;
+  ps->samples = 0;
+  lj_buf_init(L, &ps->sb);
+  profile_timer_start(ps);
+}
+
+/* Stop profiling. */
+LUA_API void luaJIT_profile_stop(lua_State *L)
+{
+  ProfileState *ps = &profile_state;
+  global_State *g = ps->g;
+  if (G(L) == g) {  /* Only stop profiler if started by this VM. */
+    profile_timer_stop(ps);
+    g->hookmask &= ~HOOK_PROFILE;
+    lj_dispatch_update(g);
+#if LJ_HASJIT
+    G2J(g)->prof_mode = 0;
+    lj_trace_flushall(L);
+#endif
+    lj_buf_free(g, &ps->sb);
+    ps->sb.w = ps->sb.e = NULL;
+    ps->g = NULL;
+  }
+}
+
+/* Return a compact stack dump. */
+LUA_API const char *luaJIT_profile_dumpstack(lua_State *L, const char *fmt,
+					     int depth, size_t *len)
+{
+  ProfileState *ps = &profile_state;
+  SBuf *sb = &ps->sb;
+  setsbufL(sb, L);
+  lj_buf_reset(sb);
+  lj_debug_dumpstack(L, sb, fmt, depth);
+  *len = (size_t)sbuflen(sb);
+  return sb->b;
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_profile.h b/libs/luajit-cmake/luajit/src/lj_profile.h
new file mode 100644
index 0000000..3969f8e
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_profile.h
@@ -0,0 +1,21 @@
+/*
+** Low-overhead profiling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_PROFILE_H
+#define _LJ_PROFILE_H
+
+#include "lj_obj.h"
+
+#if LJ_HASPROFILE
+
+LJ_FUNC void LJ_FASTCALL lj_profile_interpreter(lua_State *L);
+#if !LJ_PROFILE_SIGPROF
+LJ_FUNC void LJ_FASTCALL lj_profile_hook_enter(global_State *g);
+LJ_FUNC void LJ_FASTCALL lj_profile_hook_leave(global_State *g);
+#endif
+
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_record.c b/libs/luajit-cmake/luajit/src/lj_record.c
new file mode 100644
index 0000000..bfd4123
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_record.c
@@ -0,0 +1,2838 @@
+/*
+** Trace recorder (bytecode -> SSA IR).
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_record_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_meta.h"
+#include "lj_frame.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#endif
+#include "lj_bc.h"
+#include "lj_ff.h"
+#if LJ_HASPROFILE
+#include "lj_debug.h"
+#endif
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_ircall.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#include "lj_record.h"
+#include "lj_ffrecord.h"
+#include "lj_snap.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+#include "lj_prng.h"
+
+/* Some local macros to save typing. Undef'd at the end. */
+#define IR(ref)			(&J->cur.ir[(ref)])
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+/* Emit raw IR without passing through optimizations. */
+#define emitir_raw(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_ir_emit(J))
+
+/* -- Sanity checks ------------------------------------------------------- */
+
+#ifdef LUA_USE_ASSERT
+/* Sanity check the whole IR -- sloooow. */
+static void rec_check_ir(jit_State *J)
+{
+  IRRef i, nins = J->cur.nins, nk = J->cur.nk;
+  lj_assertJ(nk <= REF_BIAS && nins >= REF_BIAS && nins < 65536,
+	     "inconsistent IR layout");
+  for (i = nk; i < nins; i++) {
+    IRIns *ir = IR(i);
+    uint32_t mode = lj_ir_mode[ir->o];
+    IRRef op1 = ir->op1;
+    IRRef op2 = ir->op2;
+    const char *err = NULL;
+    switch (irm_op1(mode)) {
+    case IRMnone:
+      if (op1 != 0) err = "IRMnone op1 used";
+      break;
+    case IRMref:
+      if (op1 < nk || (i >= REF_BIAS ? op1 >= i : op1 <= i))
+	err = "IRMref op1 out of range";
+      break;
+    case IRMlit: break;
+    case IRMcst:
+      if (i >= REF_BIAS) { err = "constant in IR range"; break; }
+      if (irt_is64(ir->t) && ir->o != IR_KNULL)
+	i++;
+      continue;
+    }
+    switch (irm_op2(mode)) {
+    case IRMnone:
+      if (op2) err = "IRMnone op2 used";
+      break;
+    case IRMref:
+      if (op2 < nk || (i >= REF_BIAS ? op2 >= i : op2 <= i))
+	err = "IRMref op2 out of range";
+      break;
+    case IRMlit: break;
+    case IRMcst: err = "IRMcst op2"; break;
+    }
+    if (!err && ir->prev) {
+      if (ir->prev < nk || (i >= REF_BIAS ? ir->prev >= i : ir->prev <= i))
+	err = "chain out of range";
+      else if (ir->o != IR_NOP && IR(ir->prev)->o != ir->o)
+	err = "chain to different op";
+    }
+    lj_assertJ(!err, "bad IR %04d op %d(%04d,%04d): %s",
+	       i-REF_BIAS,
+	       ir->o,
+	       irm_op1(mode) == IRMref ? op1-REF_BIAS : op1,
+	       irm_op2(mode) == IRMref ? op2-REF_BIAS : op2,
+	       err);
+  }
+}
+
+/* Compare stack slots and frames of the recorder and the VM. */
+static void rec_check_slots(jit_State *J)
+{
+  BCReg s, nslots = J->baseslot + J->maxslot;
+  int32_t depth = 0;
+  cTValue *base = J->L->base - J->baseslot;
+  lj_assertJ(J->baseslot >= 1+LJ_FR2, "bad baseslot");
+  lj_assertJ(J->baseslot == 1+LJ_FR2 || (J->slot[J->baseslot-1] & TREF_FRAME),
+	     "baseslot does not point to frame");
+  lj_assertJ(nslots <= LJ_MAX_JSLOTS, "slot overflow");
+  for (s = 0; s < nslots; s++) {
+    TRef tr = J->slot[s];
+    if (tr) {
+      cTValue *tv = &base[s];
+      IRRef ref = tref_ref(tr);
+      IRIns *ir = NULL;  /* Silence compiler. */
+      if (!LJ_FR2 || ref || !(tr & (TREF_FRAME | TREF_CONT))) {
+	lj_assertJ(ref >= J->cur.nk && ref < J->cur.nins,
+		   "slot %d ref %04d out of range", s, ref - REF_BIAS);
+	ir = IR(ref);
+	lj_assertJ(irt_t(ir->t) == tref_t(tr), "slot %d IR type mismatch", s);
+      }
+      if (s == 0) {
+	lj_assertJ(tref_isfunc(tr), "frame slot 0 is not a function");
+#if LJ_FR2
+      } else if (s == 1) {
+	lj_assertJ((tr & ~TREF_FRAME) == 0, "bad frame slot 1");
+#endif
+      } else if ((tr & TREF_FRAME)) {
+	GCfunc *fn = gco2func(frame_gc(tv));
+	BCReg delta = (BCReg)(tv - frame_prev(tv));
+#if LJ_FR2
+	lj_assertJ(!ref || ir_knum(ir)->u64 == tv->u64,
+		   "frame slot %d PC mismatch", s);
+	tr = J->slot[s-1];
+	ir = IR(tref_ref(tr));
+#endif
+	lj_assertJ(tref_isfunc(tr),
+		   "frame slot %d is not a function", s-LJ_FR2);
+	lj_assertJ(!tref_isk(tr) || fn == ir_kfunc(ir),
+		   "frame slot %d function mismatch", s-LJ_FR2);
+	lj_assertJ(s > delta + LJ_FR2 ? (J->slot[s-delta] & TREF_FRAME)
+				      : (s == delta + LJ_FR2),
+		   "frame slot %d broken chain", s-LJ_FR2);
+	depth++;
+      } else if ((tr & TREF_CONT)) {
+#if LJ_FR2
+	lj_assertJ(!ref || ir_knum(ir)->u64 == tv->u64,
+		   "cont slot %d continuation mismatch", s);
+#else
+	lj_assertJ(ir_kptr(ir) == gcrefp(tv->gcr, void),
+		   "cont slot %d continuation mismatch", s);
+#endif
+	lj_assertJ((J->slot[s+1+LJ_FR2] & TREF_FRAME),
+		   "cont slot %d not followed by frame", s);
+	depth++;
+      } else if ((tr & TREF_KEYINDEX)) {
+	lj_assertJ(tref_isint(tr), "keyindex slot %d bad type %d",
+				   s, tref_type(tr));
+      } else {
+	/* Number repr. may differ, but other types must be the same. */
+	lj_assertJ(tvisnumber(tv) ? tref_isnumber(tr) :
+				    itype2irt(tv) == tref_type(tr),
+		   "slot %d type mismatch: stack type %d vs IR type %d",
+		   s, itypemap(tv), tref_type(tr));
+	if (tref_isk(tr)) {  /* Compare constants. */
+	  TValue tvk;
+	  lj_ir_kvalue(J->L, &tvk, ir);
+	  lj_assertJ((tvisnum(&tvk) && tvisnan(&tvk)) ?
+		     (tvisnum(tv) && tvisnan(tv)) :
+		     lj_obj_equal(tv, &tvk),
+		     "slot %d const mismatch: stack %016llx vs IR %016llx",
+		     s, tv->u64, tvk.u64);
+	}
+      }
+    }
+  }
+  lj_assertJ(J->framedepth == depth,
+	     "frame depth mismatch %d vs %d", J->framedepth, depth);
+}
+#endif
+
+/* -- Type handling and specialization ------------------------------------ */
+
+/* Note: these functions return tagged references (TRef). */
+
+/* Specialize a slot to a specific type. Note: slot can be negative! */
+static TRef sloadt(jit_State *J, int32_t slot, IRType t, int mode)
+{
+  /* Caller may set IRT_GUARD in t. */
+  TRef ref = emitir_raw(IRT(IR_SLOAD, t), (int32_t)J->baseslot+slot, mode);
+  J->base[slot] = ref;
+  return ref;
+}
+
+/* Specialize a slot to the runtime type. Note: slot can be negative! */
+static TRef sload(jit_State *J, int32_t slot)
+{
+  IRType t = itype2irt(&J->L->base[slot]);
+  TRef ref = emitir_raw(IRTG(IR_SLOAD, t), (int32_t)J->baseslot+slot,
+			IRSLOAD_TYPECHECK);
+  if (irtype_ispri(t)) ref = TREF_PRI(t);  /* Canonicalize primitive refs. */
+  J->base[slot] = ref;
+  return ref;
+}
+
+/* Get TRef from slot. Load slot and specialize if not done already. */
+#define getslot(J, s)	(J->base[(s)] ? J->base[(s)] : sload(J, (int32_t)(s)))
+
+/* Get TRef for current function. */
+static TRef getcurrf(jit_State *J)
+{
+  if (J->base[-1-LJ_FR2])
+    return J->base[-1-LJ_FR2];
+  /* Non-base frame functions ought to be loaded already. */
+  lj_assertJ(J->baseslot == 1+LJ_FR2, "bad baseslot");
+  return sloadt(J, -1-LJ_FR2, IRT_FUNC, IRSLOAD_READONLY);
+}
+
+/* Compare for raw object equality.
+** Returns 0 if the objects are the same.
+** Returns 1 if they are different, but the same type.
+** Returns 2 for two different types.
+** Comparisons between primitives always return 1 -- no caller cares about it.
+*/
+int lj_record_objcmp(jit_State *J, TRef a, TRef b, cTValue *av, cTValue *bv)
+{
+  int diff = !lj_obj_equal(av, bv);
+  if (!tref_isk2(a, b)) {  /* Shortcut, also handles primitives. */
+    IRType ta = tref_isinteger(a) ? IRT_INT : tref_type(a);
+    IRType tb = tref_isinteger(b) ? IRT_INT : tref_type(b);
+    if (ta != tb) {
+      /* Widen mixed number/int comparisons to number/number comparison. */
+      if (ta == IRT_INT && tb == IRT_NUM) {
+	a = emitir(IRTN(IR_CONV), a, IRCONV_NUM_INT);
+	ta = IRT_NUM;
+      } else if (ta == IRT_NUM && tb == IRT_INT) {
+	b = emitir(IRTN(IR_CONV), b, IRCONV_NUM_INT);
+      } else {
+	return 2;  /* Two different types are never equal. */
+      }
+    }
+    emitir(IRTG(diff ? IR_NE : IR_EQ, ta), a, b);
+  }
+  return diff;
+}
+
+/* Constify a value. Returns 0 for non-representable object types. */
+TRef lj_record_constify(jit_State *J, cTValue *o)
+{
+  if (tvisgcv(o))
+    return lj_ir_kgc(J, gcV(o), itype2irt(o));
+  else if (tvisint(o))
+    return lj_ir_kint(J, intV(o));
+  else if (tvisnum(o))
+    return lj_ir_knumint(J, numV(o));
+  else if (tvisbool(o))
+    return TREF_PRI(itype2irt(o));
+  else
+    return 0;  /* Can't represent lightuserdata (pointless). */
+}
+
+/* Emit a VLOAD with the correct type. */
+TRef lj_record_vload(jit_State *J, TRef ref, MSize idx, IRType t)
+{
+  TRef tr = emitir(IRTG(IR_VLOAD, t), ref, idx);
+  if (irtype_ispri(t)) tr = TREF_PRI(t);  /* Canonicalize primitives. */
+  return tr;
+}
+
+/* -- Record loop ops ----------------------------------------------------- */
+
+/* Loop event. */
+typedef enum {
+  LOOPEV_LEAVE,		/* Loop is left or not entered. */
+  LOOPEV_ENTERLO,	/* Loop is entered with a low iteration count left. */
+  LOOPEV_ENTER		/* Loop is entered. */
+} LoopEvent;
+
+/* Canonicalize slots: convert integers to numbers. */
+static void canonicalize_slots(jit_State *J)
+{
+  BCReg s;
+  if (LJ_DUALNUM) return;
+  for (s = J->baseslot+J->maxslot-1; s >= 1; s--) {
+    TRef tr = J->slot[s];
+    if (tref_isinteger(tr) && !(tr & TREF_KEYINDEX)) {
+      IRIns *ir = IR(tref_ref(tr));
+      if (!(ir->o == IR_SLOAD && (ir->op2 & (IRSLOAD_READONLY))))
+	J->slot[s] = emitir(IRTN(IR_CONV), tr, IRCONV_NUM_INT);
+    }
+  }
+}
+
+/* Stop recording. */
+void lj_record_stop(jit_State *J, TraceLink linktype, TraceNo lnk)
+{
+#ifdef LUAJIT_ENABLE_TABLE_BUMP
+  if (J->retryrec)
+    lj_trace_err(J, LJ_TRERR_RETRY);
+#endif
+  lj_trace_end(J);
+  J->cur.linktype = (uint8_t)linktype;
+  J->cur.link = (uint16_t)lnk;
+  /* Looping back at the same stack level? */
+  if (lnk == J->cur.traceno && J->framedepth + J->retdepth == 0) {
+    if ((J->flags & JIT_F_OPT_LOOP))  /* Shall we try to create a loop? */
+      goto nocanon;  /* Do not canonicalize or we lose the narrowing. */
+    if (J->cur.root)  /* Otherwise ensure we always link to the root trace. */
+      J->cur.link = J->cur.root;
+  }
+  canonicalize_slots(J);
+nocanon:
+  /* Note: all loop ops must set J->pc to the following instruction! */
+  lj_snap_add(J);  /* Add loop snapshot. */
+  J->needsnap = 0;
+  J->mergesnap = 1;  /* In case recording continues. */
+}
+
+/* Search bytecode backwards for a int/num constant slot initializer. */
+static TRef find_kinit(jit_State *J, const BCIns *endpc, BCReg slot, IRType t)
+{
+  /* This algorithm is rather simplistic and assumes quite a bit about
+  ** how the bytecode is generated. It works fine for FORI initializers,
+  ** but it won't necessarily work in other cases (e.g. iterator arguments).
+  ** It doesn't do anything fancy, either (like backpropagating MOVs).
+  */
+  const BCIns *pc, *startpc = proto_bc(J->pt);
+  for (pc = endpc-1; pc > startpc; pc--) {
+    BCIns ins = *pc;
+    BCOp op = bc_op(ins);
+    /* First try to find the last instruction that stores to this slot. */
+    if (bcmode_a(op) == BCMbase && bc_a(ins) <= slot) {
+      return 0;  /* Multiple results, e.g. from a CALL or KNIL. */
+    } else if (bcmode_a(op) == BCMdst && bc_a(ins) == slot) {
+      if (op == BC_KSHORT || op == BC_KNUM) {  /* Found const. initializer. */
+	/* Now try to verify there's no forward jump across it. */
+	const BCIns *kpc = pc;
+	for (; pc > startpc; pc--)
+	  if (bc_op(*pc) == BC_JMP) {
+	    const BCIns *target = pc+bc_j(*pc)+1;
+	    if (target > kpc && target <= endpc)
+	      return 0;  /* Conditional assignment. */
+	  }
+	if (op == BC_KSHORT) {
+	  int32_t k = (int32_t)(int16_t)bc_d(ins);
+	  return t == IRT_INT ? lj_ir_kint(J, k) : lj_ir_knum(J, (lua_Number)k);
+	} else {
+	  cTValue *tv = proto_knumtv(J->pt, bc_d(ins));
+	  if (t == IRT_INT) {
+	    int32_t k = numberVint(tv);
+	    if (tvisint(tv) || numV(tv) == (lua_Number)k)  /* -0 is ok here. */
+	      return lj_ir_kint(J, k);
+	    return 0;  /* Type mismatch. */
+	  } else {
+	    return lj_ir_knum(J, numberVnum(tv));
+	  }
+	}
+      }
+      return 0;  /* Non-constant initializer. */
+    }
+  }
+  return 0;  /* No assignment to this slot found? */
+}
+
+/* Load and optionally convert a FORI argument from a slot. */
+static TRef fori_load(jit_State *J, BCReg slot, IRType t, int mode)
+{
+  int conv = (tvisint(&J->L->base[slot]) != (t==IRT_INT)) ? IRSLOAD_CONVERT : 0;
+  return sloadt(J, (int32_t)slot,
+		t + (((mode & IRSLOAD_TYPECHECK) ||
+		      (conv && t == IRT_INT && !(mode >> 16))) ?
+		     IRT_GUARD : 0),
+		mode + conv);
+}
+
+/* Peek before FORI to find a const initializer. Otherwise load from slot. */
+static TRef fori_arg(jit_State *J, const BCIns *fori, BCReg slot,
+		     IRType t, int mode)
+{
+  TRef tr = J->base[slot];
+  if (!tr) {
+    tr = find_kinit(J, fori, slot, t);
+    if (!tr)
+      tr = fori_load(J, slot, t, mode);
+  }
+  return tr;
+}
+
+/* Return the direction of the FOR loop iterator.
+** It's important to exactly reproduce the semantics of the interpreter.
+*/
+static int rec_for_direction(cTValue *o)
+{
+  return (tvisint(o) ? intV(o) : (int32_t)o->u32.hi) >= 0;
+}
+
+/* Simulate the runtime behavior of the FOR loop iterator. */
+static LoopEvent rec_for_iter(IROp *op, cTValue *o, int isforl)
+{
+  lua_Number stopv = numberVnum(&o[FORL_STOP]);
+  lua_Number idxv = numberVnum(&o[FORL_IDX]);
+  lua_Number stepv = numberVnum(&o[FORL_STEP]);
+  if (isforl)
+    idxv += stepv;
+  if (rec_for_direction(&o[FORL_STEP])) {
+    if (idxv <= stopv) {
+      *op = IR_LE;
+      return idxv + 2*stepv > stopv ? LOOPEV_ENTERLO : LOOPEV_ENTER;
+    }
+    *op = IR_GT; return LOOPEV_LEAVE;
+  } else {
+    if (stopv <= idxv) {
+      *op = IR_GE;
+      return idxv + 2*stepv < stopv ? LOOPEV_ENTERLO : LOOPEV_ENTER;
+    }
+    *op = IR_LT; return LOOPEV_LEAVE;
+  }
+}
+
+/* Record checks for FOR loop overflow and step direction. */
+static void rec_for_check(jit_State *J, IRType t, int dir,
+			  TRef stop, TRef step, int init)
+{
+  if (!tref_isk(step)) {
+    /* Non-constant step: need a guard for the direction. */
+    TRef zero = (t == IRT_INT) ? lj_ir_kint(J, 0) : lj_ir_knum_zero(J);
+    emitir(IRTG(dir ? IR_GE : IR_LT, t), step, zero);
+    /* Add hoistable overflow checks for a narrowed FORL index. */
+    if (init && t == IRT_INT) {
+      if (tref_isk(stop)) {
+	/* Constant stop: optimize check away or to a range check for step. */
+	int32_t k = IR(tref_ref(stop))->i;
+	if (dir) {
+	  if (k > 0)
+	    emitir(IRTGI(IR_LE), step, lj_ir_kint(J, (int32_t)0x7fffffff-k));
+	} else {
+	  if (k < 0)
+	    emitir(IRTGI(IR_GE), step, lj_ir_kint(J, (int32_t)0x80000000-k));
+	}
+      } else {
+	/* Stop+step variable: need full overflow check. */
+	TRef tr = emitir(IRTGI(IR_ADDOV), step, stop);
+	emitir(IRTI(IR_USE), tr, 0);  /* ADDOV is weak. Avoid dead result. */
+      }
+    }
+  } else if (init && t == IRT_INT && !tref_isk(stop)) {
+    /* Constant step: optimize overflow check to a range check for stop. */
+    int32_t k = IR(tref_ref(step))->i;
+    k = (int32_t)(dir ? 0x7fffffff : 0x80000000) - k;
+    emitir(IRTGI(dir ? IR_LE : IR_GE), stop, lj_ir_kint(J, k));
+  }
+}
+
+/* Record a FORL instruction. */
+static void rec_for_loop(jit_State *J, const BCIns *fori, ScEvEntry *scev,
+			 int init)
+{
+  BCReg ra = bc_a(*fori);
+  cTValue *tv = &J->L->base[ra];
+  TRef idx = J->base[ra+FORL_IDX];
+  IRType t = idx ? tref_type(idx) :
+	     (init || LJ_DUALNUM) ? lj_opt_narrow_forl(J, tv) : IRT_NUM;
+  int mode = IRSLOAD_INHERIT +
+    ((!LJ_DUALNUM || tvisint(tv) == (t == IRT_INT)) ? IRSLOAD_READONLY : 0);
+  TRef stop = fori_arg(J, fori, ra+FORL_STOP, t, mode);
+  TRef step = fori_arg(J, fori, ra+FORL_STEP, t, mode);
+  int tc, dir = rec_for_direction(&tv[FORL_STEP]);
+  lj_assertJ(bc_op(*fori) == BC_FORI || bc_op(*fori) == BC_JFORI,
+	     "bad bytecode %d instead of FORI/JFORI", bc_op(*fori));
+  scev->t.irt = t;
+  scev->dir = dir;
+  scev->stop = tref_ref(stop);
+  scev->step = tref_ref(step);
+  rec_for_check(J, t, dir, stop, step, init);
+  scev->start = tref_ref(find_kinit(J, fori, ra+FORL_IDX, IRT_INT));
+  tc = (LJ_DUALNUM &&
+	!(scev->start && irref_isk(scev->stop) && irref_isk(scev->step) &&
+	  tvisint(&tv[FORL_IDX]) == (t == IRT_INT))) ?
+	IRSLOAD_TYPECHECK : 0;
+  if (tc) {
+    J->base[ra+FORL_STOP] = stop;
+    J->base[ra+FORL_STEP] = step;
+  }
+  if (!idx)
+    idx = fori_load(J, ra+FORL_IDX, t,
+		    IRSLOAD_INHERIT + tc + (J->scev.start << 16));
+  if (!init)
+    J->base[ra+FORL_IDX] = idx = emitir(IRT(IR_ADD, t), idx, step);
+  J->base[ra+FORL_EXT] = idx;
+  scev->idx = tref_ref(idx);
+  setmref(scev->pc, fori);
+  J->maxslot = ra+FORL_EXT+1;
+}
+
+/* Record FORL/JFORL or FORI/JFORI. */
+static LoopEvent rec_for(jit_State *J, const BCIns *fori, int isforl)
+{
+  BCReg ra = bc_a(*fori);
+  TValue *tv = &J->L->base[ra];
+  TRef *tr = &J->base[ra];
+  IROp op;
+  LoopEvent ev;
+  TRef stop;
+  IRType t;
+  if (isforl) {  /* Handle FORL/JFORL opcodes. */
+    TRef idx = tr[FORL_IDX];
+    if (mref(J->scev.pc, const BCIns) == fori && tref_ref(idx) == J->scev.idx) {
+      t = J->scev.t.irt;
+      stop = J->scev.stop;
+      idx = emitir(IRT(IR_ADD, t), idx, J->scev.step);
+      tr[FORL_EXT] = tr[FORL_IDX] = idx;
+    } else {
+      ScEvEntry scev;
+      rec_for_loop(J, fori, &scev, 0);
+      t = scev.t.irt;
+      stop = scev.stop;
+    }
+  } else {  /* Handle FORI/JFORI opcodes. */
+    BCReg i;
+    lj_meta_for(J->L, tv);
+    t = (LJ_DUALNUM || tref_isint(tr[FORL_IDX])) ? lj_opt_narrow_forl(J, tv) :
+						   IRT_NUM;
+    for (i = FORL_IDX; i <= FORL_STEP; i++) {
+      if (!tr[i]) sload(J, ra+i);
+      lj_assertJ(tref_isnumber_str(tr[i]), "bad FORI argument type");
+      if (tref_isstr(tr[i]))
+	tr[i] = emitir(IRTG(IR_STRTO, IRT_NUM), tr[i], 0);
+      if (t == IRT_INT) {
+	if (!tref_isinteger(tr[i]))
+	  tr[i] = emitir(IRTGI(IR_CONV), tr[i], IRCONV_INT_NUM|IRCONV_CHECK);
+      } else {
+	if (!tref_isnum(tr[i]))
+	  tr[i] = emitir(IRTN(IR_CONV), tr[i], IRCONV_NUM_INT);
+      }
+    }
+    tr[FORL_EXT] = tr[FORL_IDX];
+    stop = tr[FORL_STOP];
+    rec_for_check(J, t, rec_for_direction(&tv[FORL_STEP]),
+		  stop, tr[FORL_STEP], 1);
+  }
+
+  ev = rec_for_iter(&op, tv, isforl);
+  if (ev == LOOPEV_LEAVE) {
+    J->maxslot = ra+FORL_EXT+1;
+    J->pc = fori+1;
+  } else {
+    J->maxslot = ra;
+    J->pc = fori+bc_j(*fori)+1;
+  }
+  lj_snap_add(J);
+
+  emitir(IRTG(op, t), tr[FORL_IDX], stop);
+
+  if (ev == LOOPEV_LEAVE) {
+    J->maxslot = ra;
+    J->pc = fori+bc_j(*fori)+1;
+  } else {
+    J->maxslot = ra+FORL_EXT+1;
+    J->pc = fori+1;
+  }
+  J->needsnap = 1;
+  return ev;
+}
+
+/* Record ITERL/JITERL. */
+static LoopEvent rec_iterl(jit_State *J, const BCIns iterins)
+{
+  BCReg ra = bc_a(iterins);
+  if (!tref_isnil(getslot(J, ra))) {  /* Looping back? */
+    J->base[ra-1] = J->base[ra];  /* Copy result of ITERC to control var. */
+    J->maxslot = ra-1+bc_b(J->pc[-1]);
+    J->pc += bc_j(iterins)+1;
+    return LOOPEV_ENTER;
+  } else {
+    J->maxslot = ra-3;
+    J->pc++;
+    return LOOPEV_LEAVE;
+  }
+}
+
+/* Record LOOP/JLOOP. Now, that was easy. */
+static LoopEvent rec_loop(jit_State *J, BCReg ra, int skip)
+{
+  if (ra < J->maxslot) J->maxslot = ra;
+  J->pc += skip;
+  return LOOPEV_ENTER;
+}
+
+/* Check if a loop repeatedly failed to trace because it didn't loop back. */
+static int innerloopleft(jit_State *J, const BCIns *pc)
+{
+  ptrdiff_t i;
+  for (i = 0; i < PENALTY_SLOTS; i++)
+    if (mref(J->penalty[i].pc, const BCIns) == pc) {
+      if ((J->penalty[i].reason == LJ_TRERR_LLEAVE ||
+	   J->penalty[i].reason == LJ_TRERR_LINNER) &&
+	  J->penalty[i].val >= 2*PENALTY_MIN)
+	return 1;
+      break;
+    }
+  return 0;
+}
+
+/* Handle the case when an interpreted loop op is hit. */
+static void rec_loop_interp(jit_State *J, const BCIns *pc, LoopEvent ev)
+{
+  if (J->parent == 0 && J->exitno == 0) {
+    if (pc == J->startpc && J->framedepth + J->retdepth == 0) {
+      if (bc_op(J->cur.startins) == BC_ITERN) return;  /* See rec_itern(). */
+      /* Same loop? */
+      if (ev == LOOPEV_LEAVE)  /* Must loop back to form a root trace. */
+	lj_trace_err(J, LJ_TRERR_LLEAVE);
+      lj_record_stop(J, LJ_TRLINK_LOOP, J->cur.traceno);  /* Looping trace. */
+    } else if (ev != LOOPEV_LEAVE) {  /* Entering inner loop? */
+      /* It's usually better to abort here and wait until the inner loop
+      ** is traced. But if the inner loop repeatedly didn't loop back,
+      ** this indicates a low trip count. In this case try unrolling
+      ** an inner loop even in a root trace. But it's better to be a bit
+      ** more conservative here and only do it for very short loops.
+      */
+      if (bc_j(*pc) != -1 && !innerloopleft(J, pc))
+	lj_trace_err(J, LJ_TRERR_LINNER);  /* Root trace hit an inner loop. */
+      if ((ev != LOOPEV_ENTERLO &&
+	   J->loopref && J->cur.nins - J->loopref > 24) || --J->loopunroll < 0)
+	lj_trace_err(J, LJ_TRERR_LUNROLL);  /* Limit loop unrolling. */
+      J->loopref = J->cur.nins;
+    }
+  } else if (ev != LOOPEV_LEAVE) {  /* Side trace enters an inner loop. */
+    J->loopref = J->cur.nins;
+    if (--J->loopunroll < 0)
+      lj_trace_err(J, LJ_TRERR_LUNROLL);  /* Limit loop unrolling. */
+  }  /* Side trace continues across a loop that's left or not entered. */
+}
+
+/* Handle the case when an already compiled loop op is hit. */
+static void rec_loop_jit(jit_State *J, TraceNo lnk, LoopEvent ev)
+{
+  if (J->parent == 0 && J->exitno == 0) {  /* Root trace hit an inner loop. */
+    /* Better let the inner loop spawn a side trace back here. */
+    lj_trace_err(J, LJ_TRERR_LINNER);
+  } else if (ev != LOOPEV_LEAVE) {  /* Side trace enters a compiled loop. */
+    J->instunroll = 0;  /* Cannot continue across a compiled loop op. */
+    if (J->pc == J->startpc && J->framedepth + J->retdepth == 0)
+      lj_record_stop(J, LJ_TRLINK_LOOP, J->cur.traceno);  /* Form extra loop. */
+    else
+      lj_record_stop(J, LJ_TRLINK_ROOT, lnk);  /* Link to the loop. */
+  }  /* Side trace continues across a loop that's left or not entered. */
+}
+
+/* Record ITERN. */
+static LoopEvent rec_itern(jit_State *J, BCReg ra, BCReg rb)
+{
+#if LJ_BE
+  /* YAGNI: Disabled on big-endian due to issues with lj_vm_next,
+  ** IR_HIOP, RID_RETLO/RID_RETHI and ra_destpair.
+  */
+  UNUSED(ra); UNUSED(rb);
+  setintV(&J->errinfo, (int32_t)BC_ITERN);
+  lj_trace_err_info(J, LJ_TRERR_NYIBC);
+#else
+  RecordIndex ix;
+  /* Since ITERN is recorded at the start, we need our own loop detection. */
+  if (J->pc == J->startpc &&
+      J->framedepth + J->retdepth == 0 && J->parent == 0 && J->exitno == 0) {
+    IRRef ref = REF_FIRST + LJ_HASPROFILE;
+#ifdef LUAJIT_ENABLE_CHECKHOOK
+    ref += 3;
+#endif
+    if (J->cur.nins > ref ||
+       (LJ_HASPROFILE && J->cur.nins == ref && J->cur.ir[ref-1].o != IR_PROF)) {
+      J->instunroll = 0;  /* Cannot continue unrolling across an ITERN. */
+      lj_record_stop(J, LJ_TRLINK_LOOP, J->cur.traceno);  /* Looping trace. */
+      return LOOPEV_ENTER;
+    }
+  }
+  J->maxslot = ra;
+  lj_snap_add(J);  /* Required to make JLOOP the first ins in a side-trace. */
+  ix.tab = getslot(J, ra-2);
+  ix.key = J->base[ra-1] ? J->base[ra-1] :
+	   sloadt(J, (int32_t)(ra-1), IRT_GUARD|IRT_INT,
+		  IRSLOAD_TYPECHECK|IRSLOAD_KEYINDEX);
+  copyTV(J->L, &ix.tabv, &J->L->base[ra-2]);
+  copyTV(J->L, &ix.keyv, &J->L->base[ra-1]);
+  ix.idxchain = (rb < 3);  /* Omit value type check, if unused. */
+  ix.mobj = 1;  /* We need the next index, too. */
+  J->maxslot = ra + lj_record_next(J, &ix);
+  J->needsnap = 1;
+  if (!tref_isnil(ix.key)) {  /* Looping back? */
+    J->base[ra-1] = ix.mobj | TREF_KEYINDEX;  /* Control var has next index. */
+    J->base[ra] = ix.key;
+    J->base[ra+1] = ix.val;
+    J->pc += bc_j(J->pc[1])+2;
+    return LOOPEV_ENTER;
+  } else {
+    J->maxslot = ra-3;
+    J->pc += 2;
+    return LOOPEV_LEAVE;
+  }
+#endif
+}
+
+/* Record ISNEXT. */
+static void rec_isnext(jit_State *J, BCReg ra)
+{
+  cTValue *b = &J->L->base[ra-3];
+  if (tvisfunc(b) && funcV(b)->c.ffid == FF_next &&
+      tvistab(b+1) && tvisnil(b+2)) {
+    /* These checks are folded away for a compiled pairs(). */
+    TRef func = getslot(J, ra-3);
+    TRef trid = emitir(IRT(IR_FLOAD, IRT_U8), func, IRFL_FUNC_FFID);
+    emitir(IRTGI(IR_EQ), trid, lj_ir_kint(J, FF_next));
+    (void)getslot(J, ra-2); /* Type check for table. */
+    (void)getslot(J, ra-1); /* Type check for nil key. */
+    J->base[ra-1] = lj_ir_kint(J, 0) | TREF_KEYINDEX;
+    J->maxslot = ra;
+  } else {  /* Abort trace. Interpreter will despecialize bytecode. */
+    lj_trace_err(J, LJ_TRERR_RECERR);
+  }
+}
+
+/* -- Record profiler hook checks ----------------------------------------- */
+
+#if LJ_HASPROFILE
+
+/* Need to insert profiler hook check? */
+static int rec_profile_need(jit_State *J, GCproto *pt, const BCIns *pc)
+{
+  GCproto *ppt;
+  lj_assertJ(J->prof_mode == 'f' || J->prof_mode == 'l',
+	     "bad profiler mode %c", J->prof_mode);
+  if (!pt)
+    return 0;
+  ppt = J->prev_pt;
+  J->prev_pt = pt;
+  if (pt != ppt && ppt) {
+    J->prev_line = -1;
+    return 1;
+  }
+  if (J->prof_mode == 'l') {
+    BCLine line = lj_debug_line(pt, proto_bcpos(pt, pc));
+    BCLine pline = J->prev_line;
+    J->prev_line = line;
+    if (pline != line)
+      return 1;
+  }
+  return 0;
+}
+
+static void rec_profile_ins(jit_State *J, const BCIns *pc)
+{
+  if (J->prof_mode && rec_profile_need(J, J->pt, pc)) {
+    emitir(IRTG(IR_PROF, IRT_NIL), 0, 0);
+    lj_snap_add(J);
+  }
+}
+
+static void rec_profile_ret(jit_State *J)
+{
+  if (J->prof_mode == 'f') {
+    emitir(IRTG(IR_PROF, IRT_NIL), 0, 0);
+    J->prev_pt = NULL;
+    lj_snap_add(J);
+  }
+}
+
+#endif
+
+/* -- Record calls and returns -------------------------------------------- */
+
+/* Specialize to the runtime value of the called function or its prototype. */
+static TRef rec_call_specialize(jit_State *J, GCfunc *fn, TRef tr)
+{
+  TRef kfunc;
+  if (isluafunc(fn)) {
+    GCproto *pt = funcproto(fn);
+    /* Too many closures created? Probably not a monomorphic function. */
+    if (pt->flags >= PROTO_CLC_POLY) {  /* Specialize to prototype instead. */
+      TRef trpt = emitir(IRT(IR_FLOAD, IRT_PGC), tr, IRFL_FUNC_PC);
+      emitir(IRTG(IR_EQ, IRT_PGC), trpt, lj_ir_kptr(J, proto_bc(pt)));
+      (void)lj_ir_kgc(J, obj2gco(pt), IRT_PROTO);  /* Prevent GC of proto. */
+      return tr;
+    }
+  } else {
+    /* Don't specialize to non-monomorphic builtins. */
+    switch (fn->c.ffid) {
+    case FF_coroutine_wrap_aux:
+    case FF_string_gmatch_aux:
+      /* NYI: io_file_iter doesn't have an ffid, yet. */
+      {  /* Specialize to the ffid. */
+	TRef trid = emitir(IRT(IR_FLOAD, IRT_U8), tr, IRFL_FUNC_FFID);
+	emitir(IRTGI(IR_EQ), trid, lj_ir_kint(J, fn->c.ffid));
+      }
+      return tr;
+    default:
+      /* NYI: don't specialize to non-monomorphic C functions. */
+      break;
+    }
+  }
+  /* Otherwise specialize to the function (closure) value itself. */
+  kfunc = lj_ir_kfunc(J, fn);
+  emitir(IRTG(IR_EQ, IRT_FUNC), tr, kfunc);
+  return kfunc;
+}
+
+/* Record call setup. */
+static void rec_call_setup(jit_State *J, BCReg func, ptrdiff_t nargs)
+{
+  RecordIndex ix;
+  TValue *functv = &J->L->base[func];
+  TRef kfunc, *fbase = &J->base[func];
+  ptrdiff_t i;
+  (void)getslot(J, func); /* Ensure func has a reference. */
+  for (i = 1; i <= nargs; i++)
+    (void)getslot(J, func+LJ_FR2+i);  /* Ensure all args have a reference. */
+  if (!tref_isfunc(fbase[0])) {  /* Resolve __call metamethod. */
+    ix.tab = fbase[0];
+    copyTV(J->L, &ix.tabv, functv);
+    if (!lj_record_mm_lookup(J, &ix, MM_call) || !tref_isfunc(ix.mobj))
+      lj_trace_err(J, LJ_TRERR_NOMM);
+    for (i = ++nargs; i > LJ_FR2; i--)  /* Shift arguments up. */
+      fbase[i+LJ_FR2] = fbase[i+LJ_FR2-1];
+#if LJ_FR2
+    fbase[2] = fbase[0];
+#endif
+    fbase[0] = ix.mobj;  /* Replace function. */
+    functv = &ix.mobjv;
+  }
+  kfunc = rec_call_specialize(J, funcV(functv), fbase[0]);
+#if LJ_FR2
+  fbase[0] = kfunc;
+  fbase[1] = TREF_FRAME;
+#else
+  fbase[0] = kfunc | TREF_FRAME;
+#endif
+  J->maxslot = (BCReg)nargs;
+}
+
+/* Record call. */
+void lj_record_call(jit_State *J, BCReg func, ptrdiff_t nargs)
+{
+  rec_call_setup(J, func, nargs);
+  /* Bump frame. */
+  J->framedepth++;
+  J->base += func+1+LJ_FR2;
+  J->baseslot += func+1+LJ_FR2;
+  if (J->baseslot + J->maxslot >= LJ_MAX_JSLOTS)
+    lj_trace_err(J, LJ_TRERR_STACKOV);
+}
+
+/* Record tail call. */
+void lj_record_tailcall(jit_State *J, BCReg func, ptrdiff_t nargs)
+{
+  rec_call_setup(J, func, nargs);
+  if (frame_isvarg(J->L->base - 1)) {
+    BCReg cbase = (BCReg)frame_delta(J->L->base - 1);
+    if (--J->framedepth < 0)
+      lj_trace_err(J, LJ_TRERR_NYIRETL);
+    J->baseslot -= (BCReg)cbase;
+    J->base -= cbase;
+    func += cbase;
+  }
+  /* Move func + args down. */
+  if (LJ_FR2 && J->baseslot == 2)
+    J->base[func+1] = TREF_FRAME;
+  memmove(&J->base[-1-LJ_FR2], &J->base[func], sizeof(TRef)*(J->maxslot+1+LJ_FR2));
+  /* Note: the new TREF_FRAME is now at J->base[-1] (even for slot #0). */
+  /* Tailcalls can form a loop, so count towards the loop unroll limit. */
+  if (++J->tailcalled > J->loopunroll)
+    lj_trace_err(J, LJ_TRERR_LUNROLL);
+}
+
+/* Check unroll limits for down-recursion. */
+static int check_downrec_unroll(jit_State *J, GCproto *pt)
+{
+  IRRef ptref;
+  for (ptref = J->chain[IR_KGC]; ptref; ptref = IR(ptref)->prev)
+    if (ir_kgc(IR(ptref)) == obj2gco(pt)) {
+      int count = 0;
+      IRRef ref;
+      for (ref = J->chain[IR_RETF]; ref; ref = IR(ref)->prev)
+	if (IR(ref)->op1 == ptref)
+	  count++;
+      if (count) {
+	if (J->pc == J->startpc) {
+	  if (count + J->tailcalled > J->param[JIT_P_recunroll])
+	    return 1;
+	} else {
+	  lj_trace_err(J, LJ_TRERR_DOWNREC);
+	}
+      }
+    }
+  return 0;
+}
+
+static TRef rec_cat(jit_State *J, BCReg baseslot, BCReg topslot);
+
+/* Record return. */
+void lj_record_ret(jit_State *J, BCReg rbase, ptrdiff_t gotresults)
+{
+  TValue *frame = J->L->base - 1;
+  ptrdiff_t i;
+  for (i = 0; i < gotresults; i++)
+    (void)getslot(J, rbase+i);  /* Ensure all results have a reference. */
+  while (frame_ispcall(frame)) {  /* Immediately resolve pcall() returns. */
+    BCReg cbase = (BCReg)frame_delta(frame);
+    if (--J->framedepth <= 0)
+      lj_trace_err(J, LJ_TRERR_NYIRETL);
+    lj_assertJ(J->baseslot > 1+LJ_FR2, "bad baseslot for return");
+    gotresults++;
+    rbase += cbase;
+    J->baseslot -= (BCReg)cbase;
+    J->base -= cbase;
+    J->base[--rbase] = TREF_TRUE;  /* Prepend true to results. */
+    frame = frame_prevd(frame);
+    J->needsnap = 1;  /* Stop catching on-trace errors. */
+  }
+  /* Return to lower frame via interpreter for unhandled cases. */
+  if (J->framedepth == 0 && J->pt && bc_isret(bc_op(*J->pc)) &&
+       (!frame_islua(frame) ||
+	(J->parent == 0 && J->exitno == 0 &&
+	 !bc_isret(bc_op(J->cur.startins))))) {
+    /* NYI: specialize to frame type and return directly, not via RET*. */
+    for (i = 0; i < (ptrdiff_t)rbase; i++)
+      J->base[i] = 0;  /* Purge dead slots. */
+    J->maxslot = rbase + (BCReg)gotresults;
+    lj_record_stop(J, LJ_TRLINK_RETURN, 0);  /* Return to interpreter. */
+    return;
+  }
+  if (frame_isvarg(frame)) {
+    BCReg cbase = (BCReg)frame_delta(frame);
+    if (--J->framedepth < 0)  /* NYI: return of vararg func to lower frame. */
+      lj_trace_err(J, LJ_TRERR_NYIRETL);
+    lj_assertJ(J->baseslot > 1+LJ_FR2, "bad baseslot for return");
+    rbase += cbase;
+    J->baseslot -= (BCReg)cbase;
+    J->base -= cbase;
+    frame = frame_prevd(frame);
+  }
+  if (frame_islua(frame)) {  /* Return to Lua frame. */
+    BCIns callins = *(frame_pc(frame)-1);
+    ptrdiff_t nresults = bc_b(callins) ? (ptrdiff_t)bc_b(callins)-1 :gotresults;
+    BCReg cbase = bc_a(callins);
+    GCproto *pt = funcproto(frame_func(frame - (cbase+1+LJ_FR2)));
+    if ((pt->flags & PROTO_NOJIT))
+      lj_trace_err(J, LJ_TRERR_CJITOFF);
+    if (J->framedepth == 0 && J->pt && frame == J->L->base - 1) {
+      if (check_downrec_unroll(J, pt)) {
+	J->maxslot = (BCReg)(rbase + gotresults);
+	lj_snap_purge(J);
+	lj_record_stop(J, LJ_TRLINK_DOWNREC, J->cur.traceno);  /* Down-rec. */
+	return;
+      }
+      lj_snap_add(J);
+    }
+    for (i = 0; i < nresults; i++)  /* Adjust results. */
+      J->base[i-1-LJ_FR2] = i < gotresults ? J->base[rbase+i] : TREF_NIL;
+    J->maxslot = cbase+(BCReg)nresults;
+    if (J->framedepth > 0) {  /* Return to a frame that is part of the trace. */
+      J->framedepth--;
+      lj_assertJ(J->baseslot > cbase+1+LJ_FR2, "bad baseslot for return");
+      J->baseslot -= cbase+1+LJ_FR2;
+      J->base -= cbase+1+LJ_FR2;
+    } else if (J->parent == 0 && J->exitno == 0 &&
+	       !bc_isret(bc_op(J->cur.startins))) {
+      /* Return to lower frame would leave the loop in a root trace. */
+      lj_trace_err(J, LJ_TRERR_LLEAVE);
+    } else if (J->needsnap) {  /* Tailcalled to ff with side-effects. */
+      lj_trace_err(J, LJ_TRERR_NYIRETL);  /* No way to insert snapshot here. */
+    } else {  /* Return to lower frame. Guard for the target we return to. */
+      TRef trpt = lj_ir_kgc(J, obj2gco(pt), IRT_PROTO);
+      TRef trpc = lj_ir_kptr(J, (void *)frame_pc(frame));
+      emitir(IRTG(IR_RETF, IRT_PGC), trpt, trpc);
+      J->retdepth++;
+      J->needsnap = 1;
+      lj_assertJ(J->baseslot == 1+LJ_FR2, "bad baseslot for return");
+      /* Shift result slots up and clear the slots of the new frame below. */
+      memmove(J->base + cbase, J->base-1-LJ_FR2, sizeof(TRef)*nresults);
+      memset(J->base-1-LJ_FR2, 0, sizeof(TRef)*(cbase+1+LJ_FR2));
+    }
+  } else if (frame_iscont(frame)) {  /* Return to continuation frame. */
+    ASMFunction cont = frame_contf(frame);
+    BCReg cbase = (BCReg)frame_delta(frame);
+    if ((J->framedepth -= 2) < 0)
+      lj_trace_err(J, LJ_TRERR_NYIRETL);
+    J->baseslot -= (BCReg)cbase;
+    J->base -= cbase;
+    J->maxslot = cbase-(2<<LJ_FR2);
+    if (cont == lj_cont_ra) {
+      /* Copy result to destination slot. */
+      BCReg dst = bc_a(*(frame_contpc(frame)-1));
+      J->base[dst] = gotresults ? J->base[cbase+rbase] : TREF_NIL;
+      if (dst >= J->maxslot) {
+	J->maxslot = dst+1;
+      }
+    } else if (cont == lj_cont_nop) {
+      /* Nothing to do here. */
+    } else if (cont == lj_cont_cat) {
+      BCReg bslot = bc_b(*(frame_contpc(frame)-1));
+      TRef tr = gotresults ? J->base[cbase+rbase] : TREF_NIL;
+      if (bslot != J->maxslot) {  /* Concatenate the remainder. */
+	TValue *b = J->L->base, save;  /* Simulate lower frame and result. */
+	/* Can't handle MM_concat + CALLT + fast func side-effects. */
+	if (J->postproc != LJ_POST_NONE)
+	  lj_trace_err(J, LJ_TRERR_NYIRETL);
+	J->base[J->maxslot] = tr;
+	copyTV(J->L, &save, b-(2<<LJ_FR2));
+	if (gotresults)
+	  copyTV(J->L, b-(2<<LJ_FR2), b+rbase);
+	else
+	  setnilV(b-(2<<LJ_FR2));
+	J->L->base = b - cbase;
+	tr = rec_cat(J, bslot, cbase-(2<<LJ_FR2));
+	b = J->L->base + cbase;  /* Undo. */
+	J->L->base = b;
+	copyTV(J->L, b-(2<<LJ_FR2), &save);
+      }
+      if (tr) {  /* Store final result. */
+	BCReg dst = bc_a(*(frame_contpc(frame)-1));
+	J->base[dst] = tr;
+	if (dst >= J->maxslot) {
+	  J->maxslot = dst+1;
+	}
+      }  /* Otherwise continue with another __concat call. */
+    } else {
+      /* Result type already specialized. */
+      lj_assertJ(cont == lj_cont_condf || cont == lj_cont_condt,
+		 "bad continuation type");
+    }
+  } else {
+    lj_trace_err(J, LJ_TRERR_NYIRETL);  /* NYI: handle return to C frame. */
+  }
+  lj_assertJ(J->baseslot >= 1+LJ_FR2, "bad baseslot for return");
+}
+
+/* -- Metamethod handling ------------------------------------------------- */
+
+/* Prepare to record call to metamethod. */
+static BCReg rec_mm_prep(jit_State *J, ASMFunction cont)
+{
+  BCReg s, top = cont == lj_cont_cat ? J->maxslot : curr_proto(J->L)->framesize;
+#if LJ_FR2
+  J->base[top] = lj_ir_k64(J, IR_KNUM, u64ptr(contptr(cont)));
+  J->base[top+1] = TREF_CONT;
+#else
+  J->base[top] = lj_ir_kptr(J, contptr(cont)) | TREF_CONT;
+#endif
+  J->framedepth++;
+  for (s = J->maxslot; s < top; s++)
+    J->base[s] = 0;  /* Clear frame gap to avoid resurrecting previous refs. */
+  return top+1+LJ_FR2;
+}
+
+/* Record metamethod lookup. */
+int lj_record_mm_lookup(jit_State *J, RecordIndex *ix, MMS mm)
+{
+  RecordIndex mix;
+  GCtab *mt;
+  if (tref_istab(ix->tab)) {
+    mt = tabref(tabV(&ix->tabv)->metatable);
+    mix.tab = emitir(IRT(IR_FLOAD, IRT_TAB), ix->tab, IRFL_TAB_META);
+  } else if (tref_isudata(ix->tab)) {
+    int udtype = udataV(&ix->tabv)->udtype;
+    mt = tabref(udataV(&ix->tabv)->metatable);
+    /* The metatables of special userdata objects are treated as immutable. */
+    if (udtype != UDTYPE_USERDATA) {
+      cTValue *mo;
+      if (LJ_HASFFI && udtype == UDTYPE_FFI_CLIB) {
+	/* Specialize to the C library namespace object. */
+	emitir(IRTG(IR_EQ, IRT_PGC), ix->tab, lj_ir_kptr(J, udataV(&ix->tabv)));
+      } else {
+	/* Specialize to the type of userdata. */
+	TRef tr = emitir(IRT(IR_FLOAD, IRT_U8), ix->tab, IRFL_UDATA_UDTYPE);
+	emitir(IRTGI(IR_EQ), tr, lj_ir_kint(J, udtype));
+      }
+  immutable_mt:
+      mo = lj_tab_getstr(mt, mmname_str(J2G(J), mm));
+      if (!mo || tvisnil(mo))
+	return 0;  /* No metamethod. */
+      /* Treat metamethod or index table as immutable, too. */
+      if (!(tvisfunc(mo) || tvistab(mo)))
+	lj_trace_err(J, LJ_TRERR_BADTYPE);
+      copyTV(J->L, &ix->mobjv, mo);
+      ix->mobj = lj_ir_kgc(J, gcV(mo), tvisfunc(mo) ? IRT_FUNC : IRT_TAB);
+      ix->mtv = mt;
+      ix->mt = TREF_NIL;  /* Dummy value for comparison semantics. */
+      return 1;  /* Got metamethod or index table. */
+    }
+    mix.tab = emitir(IRT(IR_FLOAD, IRT_TAB), ix->tab, IRFL_UDATA_META);
+  } else {
+    /* Specialize to base metatable. Must flush mcode in lua_setmetatable(). */
+    mt = tabref(basemt_obj(J2G(J), &ix->tabv));
+    if (mt == NULL) {
+      ix->mt = TREF_NIL;
+      return 0;  /* No metamethod. */
+    }
+    /* The cdata metatable is treated as immutable. */
+    if (LJ_HASFFI && tref_iscdata(ix->tab)) goto immutable_mt;
+    ix->mt = mix.tab = lj_ir_ggfload(J, IRT_TAB,
+      GG_OFS(g.gcroot[GCROOT_BASEMT+itypemap(&ix->tabv)]));
+    goto nocheck;
+  }
+  ix->mt = mt ? mix.tab : TREF_NIL;
+  emitir(IRTG(mt ? IR_NE : IR_EQ, IRT_TAB), mix.tab, lj_ir_knull(J, IRT_TAB));
+nocheck:
+  if (mt) {
+    GCstr *mmstr = mmname_str(J2G(J), mm);
+    cTValue *mo = lj_tab_getstr(mt, mmstr);
+    if (mo && !tvisnil(mo))
+      copyTV(J->L, &ix->mobjv, mo);
+    ix->mtv = mt;
+    settabV(J->L, &mix.tabv, mt);
+    setstrV(J->L, &mix.keyv, mmstr);
+    mix.key = lj_ir_kstr(J, mmstr);
+    mix.val = 0;
+    mix.idxchain = 0;
+    ix->mobj = lj_record_idx(J, &mix);
+    return !tref_isnil(ix->mobj);  /* 1 if metamethod found, 0 if not. */
+  }
+  return 0;  /* No metamethod. */
+}
+
+/* Record call to arithmetic metamethod. */
+static TRef rec_mm_arith(jit_State *J, RecordIndex *ix, MMS mm)
+{
+  /* Set up metamethod call first to save ix->tab and ix->tabv. */
+  BCReg func = rec_mm_prep(J, mm == MM_concat ? lj_cont_cat : lj_cont_ra);
+  TRef *base = J->base + func;
+  TValue *basev = J->L->base + func;
+  base[1+LJ_FR2] = ix->tab; base[2+LJ_FR2] = ix->key;
+  copyTV(J->L, basev+1+LJ_FR2, &ix->tabv);
+  copyTV(J->L, basev+2+LJ_FR2, &ix->keyv);
+  if (!lj_record_mm_lookup(J, ix, mm)) {  /* Lookup mm on 1st operand. */
+    if (mm != MM_unm) {
+      ix->tab = ix->key;
+      copyTV(J->L, &ix->tabv, &ix->keyv);
+      if (lj_record_mm_lookup(J, ix, mm))  /* Lookup mm on 2nd operand. */
+	goto ok;
+    }
+    lj_trace_err(J, LJ_TRERR_NOMM);
+  }
+ok:
+  base[0] = ix->mobj;
+#if LJ_FR2
+  base[1] = 0;
+#endif
+  copyTV(J->L, basev+0, &ix->mobjv);
+  lj_record_call(J, func, 2);
+  return 0;  /* No result yet. */
+}
+
+/* Record call to __len metamethod. */
+static TRef rec_mm_len(jit_State *J, TRef tr, TValue *tv)
+{
+  RecordIndex ix;
+  ix.tab = tr;
+  copyTV(J->L, &ix.tabv, tv);
+  if (lj_record_mm_lookup(J, &ix, MM_len)) {
+    BCReg func = rec_mm_prep(J, lj_cont_ra);
+    TRef *base = J->base + func;
+    TValue *basev = J->L->base + func;
+    base[0] = ix.mobj; copyTV(J->L, basev+0, &ix.mobjv);
+    base += LJ_FR2;
+    basev += LJ_FR2;
+    base[1] = tr; copyTV(J->L, basev+1, tv);
+#if LJ_52
+    base[2] = tr; copyTV(J->L, basev+2, tv);
+#else
+    base[2] = TREF_NIL; setnilV(basev+2);
+#endif
+    lj_record_call(J, func, 2);
+  } else {
+    if (LJ_52 && tref_istab(tr))
+      return emitir(IRTI(IR_ALEN), tr, TREF_NIL);
+    lj_trace_err(J, LJ_TRERR_NOMM);
+  }
+  return 0;  /* No result yet. */
+}
+
+/* Call a comparison metamethod. */
+static void rec_mm_callcomp(jit_State *J, RecordIndex *ix, int op)
+{
+  BCReg func = rec_mm_prep(J, (op&1) ? lj_cont_condf : lj_cont_condt);
+  TRef *base = J->base + func + LJ_FR2;
+  TValue *tv = J->L->base + func + LJ_FR2;
+  base[-LJ_FR2] = ix->mobj; base[1] = ix->val; base[2] = ix->key;
+  copyTV(J->L, tv-LJ_FR2, &ix->mobjv);
+  copyTV(J->L, tv+1, &ix->valv);
+  copyTV(J->L, tv+2, &ix->keyv);
+  lj_record_call(J, func, 2);
+}
+
+/* Record call to equality comparison metamethod (for tab and udata only). */
+static void rec_mm_equal(jit_State *J, RecordIndex *ix, int op)
+{
+  ix->tab = ix->val;
+  copyTV(J->L, &ix->tabv, &ix->valv);
+  if (lj_record_mm_lookup(J, ix, MM_eq)) {  /* Lookup mm on 1st operand. */
+    cTValue *bv;
+    TRef mo1 = ix->mobj;
+    TValue mo1v;
+    copyTV(J->L, &mo1v, &ix->mobjv);
+    /* Avoid the 2nd lookup and the objcmp if the metatables are equal. */
+    bv = &ix->keyv;
+    if (tvistab(bv) && tabref(tabV(bv)->metatable) == ix->mtv) {
+      TRef mt2 = emitir(IRT(IR_FLOAD, IRT_TAB), ix->key, IRFL_TAB_META);
+      emitir(IRTG(IR_EQ, IRT_TAB), mt2, ix->mt);
+    } else if (tvisudata(bv) && tabref(udataV(bv)->metatable) == ix->mtv) {
+      TRef mt2 = emitir(IRT(IR_FLOAD, IRT_TAB), ix->key, IRFL_UDATA_META);
+      emitir(IRTG(IR_EQ, IRT_TAB), mt2, ix->mt);
+    } else {  /* Lookup metamethod on 2nd operand and compare both. */
+      ix->tab = ix->key;
+      copyTV(J->L, &ix->tabv, bv);
+      if (!lj_record_mm_lookup(J, ix, MM_eq) ||
+	  lj_record_objcmp(J, mo1, ix->mobj, &mo1v, &ix->mobjv))
+	return;
+    }
+    rec_mm_callcomp(J, ix, op);
+  }
+}
+
+/* Record call to ordered comparison metamethods (for arbitrary objects). */
+static void rec_mm_comp(jit_State *J, RecordIndex *ix, int op)
+{
+  ix->tab = ix->val;
+  copyTV(J->L, &ix->tabv, &ix->valv);
+  while (1) {
+    MMS mm = (op & 2) ? MM_le : MM_lt;  /* Try __le + __lt or only __lt. */
+#if LJ_52
+    if (!lj_record_mm_lookup(J, ix, mm)) {  /* Lookup mm on 1st operand. */
+      ix->tab = ix->key;
+      copyTV(J->L, &ix->tabv, &ix->keyv);
+      if (!lj_record_mm_lookup(J, ix, mm))  /* Lookup mm on 2nd operand. */
+	goto nomatch;
+    }
+    rec_mm_callcomp(J, ix, op);
+    return;
+#else
+    if (lj_record_mm_lookup(J, ix, mm)) {  /* Lookup mm on 1st operand. */
+      cTValue *bv;
+      TRef mo1 = ix->mobj;
+      TValue mo1v;
+      copyTV(J->L, &mo1v, &ix->mobjv);
+      /* Avoid the 2nd lookup and the objcmp if the metatables are equal. */
+      bv = &ix->keyv;
+      if (tvistab(bv) && tabref(tabV(bv)->metatable) == ix->mtv) {
+	TRef mt2 = emitir(IRT(IR_FLOAD, IRT_TAB), ix->key, IRFL_TAB_META);
+	emitir(IRTG(IR_EQ, IRT_TAB), mt2, ix->mt);
+      } else if (tvisudata(bv) && tabref(udataV(bv)->metatable) == ix->mtv) {
+	TRef mt2 = emitir(IRT(IR_FLOAD, IRT_TAB), ix->key, IRFL_UDATA_META);
+	emitir(IRTG(IR_EQ, IRT_TAB), mt2, ix->mt);
+      } else {  /* Lookup metamethod on 2nd operand and compare both. */
+	ix->tab = ix->key;
+	copyTV(J->L, &ix->tabv, bv);
+	if (!lj_record_mm_lookup(J, ix, mm) ||
+	    lj_record_objcmp(J, mo1, ix->mobj, &mo1v, &ix->mobjv))
+	  goto nomatch;
+      }
+      rec_mm_callcomp(J, ix, op);
+      return;
+    }
+#endif
+  nomatch:
+    /* Lookup failed. Retry with  __lt and swapped operands. */
+    if (!(op & 2)) break;  /* Already at __lt. Interpreter will throw. */
+    ix->tab = ix->key; ix->key = ix->val; ix->val = ix->tab;
+    copyTV(J->L, &ix->tabv, &ix->keyv);
+    copyTV(J->L, &ix->keyv, &ix->valv);
+    copyTV(J->L, &ix->valv, &ix->tabv);
+    op ^= 3;
+  }
+}
+
+#if LJ_HASFFI
+/* Setup call to cdata comparison metamethod. */
+static void rec_mm_comp_cdata(jit_State *J, RecordIndex *ix, int op, MMS mm)
+{
+  lj_snap_add(J);
+  if (tref_iscdata(ix->val)) {
+    ix->tab = ix->val;
+    copyTV(J->L, &ix->tabv, &ix->valv);
+  } else {
+    lj_assertJ(tref_iscdata(ix->key), "cdata expected");
+    ix->tab = ix->key;
+    copyTV(J->L, &ix->tabv, &ix->keyv);
+  }
+  lj_record_mm_lookup(J, ix, mm);
+  rec_mm_callcomp(J, ix, op);
+}
+#endif
+
+/* -- Indexed access ------------------------------------------------------ */
+
+#ifdef LUAJIT_ENABLE_TABLE_BUMP
+/* Bump table allocations in bytecode when they grow during recording. */
+static void rec_idx_bump(jit_State *J, RecordIndex *ix)
+{
+  RBCHashEntry *rbc = &J->rbchash[(ix->tab & (RBCHASH_SLOTS-1))];
+  if (tref_ref(ix->tab) == rbc->ref) {
+    const BCIns *pc = mref(rbc->pc, const BCIns);
+    GCtab *tb = tabV(&ix->tabv);
+    uint32_t nhbits;
+    IRIns *ir;
+    if (!tvisnil(&ix->keyv))
+      (void)lj_tab_set(J->L, tb, &ix->keyv);  /* Grow table right now. */
+    nhbits = tb->hmask > 0 ? lj_fls(tb->hmask)+1 : 0;
+    ir = IR(tref_ref(ix->tab));
+    if (ir->o == IR_TNEW) {
+      uint32_t ah = bc_d(*pc);
+      uint32_t asize = ah & 0x7ff, hbits = ah >> 11;
+      if (nhbits > hbits) hbits = nhbits;
+      if (tb->asize > asize) {
+	asize = tb->asize <= 0x7ff ? tb->asize : 0x7ff;
+      }
+      if ((asize | (hbits<<11)) != ah) {  /* Has the size changed? */
+	/* Patch bytecode, but continue recording (for more patching). */
+	setbc_d(pc, (asize | (hbits<<11)));
+	/* Patching TNEW operands is only safe if the trace is aborted. */
+	ir->op1 = asize; ir->op2 = hbits;
+	J->retryrec = 1;  /* Abort the trace at the end of recording. */
+      }
+    } else if (ir->o == IR_TDUP) {
+      GCtab *tpl = gco2tab(proto_kgc(&gcref(rbc->pt)->pt, ~(ptrdiff_t)bc_d(*pc)));
+      /* Grow template table, but preserve keys with nil values. */
+      if ((tb->asize > tpl->asize && (1u << nhbits)-1 == tpl->hmask) ||
+	  (tb->asize == tpl->asize && (1u << nhbits)-1 > tpl->hmask)) {
+	Node *node = noderef(tpl->node);
+	uint32_t i, hmask = tpl->hmask, asize;
+	TValue *array;
+	for (i = 0; i <= hmask; i++) {
+	  if (!tvisnil(&node[i].key) && tvisnil(&node[i].val))
+	    settabV(J->L, &node[i].val, tpl);
+	}
+	if (!tvisnil(&ix->keyv) && tref_isk(ix->key)) {
+	  TValue *o = lj_tab_set(J->L, tpl, &ix->keyv);
+	  if (tvisnil(o)) settabV(J->L, o, tpl);
+	}
+	lj_tab_resize(J->L, tpl, tb->asize, nhbits);
+	node = noderef(tpl->node);
+	hmask = tpl->hmask;
+	for (i = 0; i <= hmask; i++) {
+	  /* This is safe, since template tables only hold immutable values. */
+	  if (tvistab(&node[i].val))
+	    setnilV(&node[i].val);
+	}
+	/* The shape of the table may have changed. Clean up array part, too. */
+	asize = tpl->asize;
+	array = tvref(tpl->array);
+	for (i = 0; i < asize; i++) {
+	  if (tvistab(&array[i]))
+	    setnilV(&array[i]);
+	}
+	J->retryrec = 1;  /* Abort the trace at the end of recording. */
+      }
+    }
+  }
+}
+#endif
+
+/* Record bounds-check. */
+static void rec_idx_abc(jit_State *J, TRef asizeref, TRef ikey, uint32_t asize)
+{
+  /* Try to emit invariant bounds checks. */
+  if ((J->flags & (JIT_F_OPT_LOOP|JIT_F_OPT_ABC)) ==
+      (JIT_F_OPT_LOOP|JIT_F_OPT_ABC)) {
+    IRRef ref = tref_ref(ikey);
+    IRIns *ir = IR(ref);
+    int32_t ofs = 0;
+    IRRef ofsref = 0;
+    /* Handle constant offsets. */
+    if (ir->o == IR_ADD && irref_isk(ir->op2)) {
+      ofsref = ir->op2;
+      ofs = IR(ofsref)->i;
+      ref = ir->op1;
+      ir = IR(ref);
+    }
+    /* Got scalar evolution analysis results for this reference? */
+    if (ref == J->scev.idx) {
+      int32_t stop;
+      lj_assertJ(irt_isint(J->scev.t) && ir->o == IR_SLOAD,
+		 "only int SCEV supported");
+      stop = numberVint(&(J->L->base - J->baseslot)[ir->op1 + FORL_STOP]);
+      /* Runtime value for stop of loop is within bounds? */
+      if ((uint64_t)stop + ofs < (uint64_t)asize) {
+	/* Emit invariant bounds check for stop. */
+	emitir(IRTG(IR_ABC, IRT_P32), asizeref, ofs == 0 ? J->scev.stop :
+	       emitir(IRTI(IR_ADD), J->scev.stop, ofsref));
+	/* Emit invariant bounds check for start, if not const or negative. */
+	if (!(J->scev.dir && J->scev.start &&
+	      (int64_t)IR(J->scev.start)->i + ofs >= 0))
+	  emitir(IRTG(IR_ABC, IRT_P32), asizeref, ikey);
+	return;
+      }
+    }
+  }
+  emitir(IRTGI(IR_ABC), asizeref, ikey);  /* Emit regular bounds check. */
+}
+
+/* Record indexed key lookup. */
+static TRef rec_idx_key(jit_State *J, RecordIndex *ix, IRRef *rbref,
+			IRType1 *rbguard)
+{
+  TRef key;
+  GCtab *t = tabV(&ix->tabv);
+  ix->oldv = lj_tab_get(J->L, t, &ix->keyv);  /* Lookup previous value. */
+  *rbref = 0;
+  rbguard->irt = 0;
+
+  /* Integer keys are looked up in the array part first. */
+  key = ix->key;
+  if (tref_isnumber(key)) {
+    int32_t k = numberVint(&ix->keyv);
+    if (!tvisint(&ix->keyv) && numV(&ix->keyv) != (lua_Number)k)
+      k = LJ_MAX_ASIZE;
+    if ((MSize)k < LJ_MAX_ASIZE) {  /* Potential array key? */
+      TRef ikey = lj_opt_narrow_index(J, key);
+      TRef asizeref = emitir(IRTI(IR_FLOAD), ix->tab, IRFL_TAB_ASIZE);
+      if ((MSize)k < t->asize) {  /* Currently an array key? */
+	TRef arrayref;
+	rec_idx_abc(J, asizeref, ikey, t->asize);
+	arrayref = emitir(IRT(IR_FLOAD, IRT_PGC), ix->tab, IRFL_TAB_ARRAY);
+	return emitir(IRT(IR_AREF, IRT_PGC), arrayref, ikey);
+      } else {  /* Currently not in array (may be an array extension)? */
+	emitir(IRTGI(IR_ULE), asizeref, ikey);  /* Inv. bounds check. */
+	if (k == 0 && tref_isk(key))
+	  key = lj_ir_knum_zero(J);  /* Canonicalize 0 or +-0.0 to +0.0. */
+	/* And continue with the hash lookup. */
+      }
+    } else if (!tref_isk(key)) {
+      /* We can rule out const numbers which failed the integerness test
+      ** above. But all other numbers are potential array keys.
+      */
+      if (t->asize == 0) {  /* True sparse tables have an empty array part. */
+	/* Guard that the array part stays empty. */
+	TRef tmp = emitir(IRTI(IR_FLOAD), ix->tab, IRFL_TAB_ASIZE);
+	emitir(IRTGI(IR_EQ), tmp, lj_ir_kint(J, 0));
+      } else {
+	lj_trace_err(J, LJ_TRERR_NYITMIX);
+      }
+    }
+  }
+
+  /* Otherwise the key is located in the hash part. */
+  if (t->hmask == 0) {  /* Shortcut for empty hash part. */
+    /* Guard that the hash part stays empty. */
+    TRef tmp = emitir(IRTI(IR_FLOAD), ix->tab, IRFL_TAB_HMASK);
+    emitir(IRTGI(IR_EQ), tmp, lj_ir_kint(J, 0));
+    return lj_ir_kkptr(J, niltvg(J2G(J)));
+  }
+  if (tref_isinteger(key))  /* Hash keys are based on numbers, not ints. */
+    key = emitir(IRTN(IR_CONV), key, IRCONV_NUM_INT);
+  if (tref_isk(key)) {
+    /* Optimize lookup of constant hash keys. */
+    GCSize hslot = (GCSize)((char *)ix->oldv-(char *)&noderef(t->node)[0].val);
+    if (hslot <= t->hmask*(GCSize)sizeof(Node) &&
+	hslot <= 65535*(GCSize)sizeof(Node)) {
+      TRef node, kslot, hm;
+      *rbref = J->cur.nins;  /* Mark possible rollback point. */
+      *rbguard = J->guardemit;
+      hm = emitir(IRTI(IR_FLOAD), ix->tab, IRFL_TAB_HMASK);
+      emitir(IRTGI(IR_EQ), hm, lj_ir_kint(J, (int32_t)t->hmask));
+      node = emitir(IRT(IR_FLOAD, IRT_PGC), ix->tab, IRFL_TAB_NODE);
+      kslot = lj_ir_kslot(J, key, (IRRef)(hslot / sizeof(Node)));
+      return emitir(IRTG(IR_HREFK, IRT_PGC), node, kslot);
+    }
+  }
+  /* Fall back to a regular hash lookup. */
+  return emitir(IRT(IR_HREF, IRT_PGC), ix->tab, key);
+}
+
+/* Determine whether a key is NOT one of the fast metamethod names. */
+static int nommstr(jit_State *J, TRef key)
+{
+  if (tref_isstr(key)) {
+    if (tref_isk(key)) {
+      GCstr *str = ir_kstr(IR(tref_ref(key)));
+      uint32_t mm;
+      for (mm = 0; mm <= MM_FAST; mm++)
+	if (mmname_str(J2G(J), mm) == str)
+	  return 0;  /* MUST be one the fast metamethod names. */
+    } else {
+      return 0;  /* Variable string key MAY be a metamethod name. */
+    }
+  }
+  return 1;  /* CANNOT be a metamethod name. */
+}
+
+/* Record indexed load/store. */
+TRef lj_record_idx(jit_State *J, RecordIndex *ix)
+{
+  TRef xref;
+  IROp xrefop, loadop;
+  IRRef rbref;
+  IRType1 rbguard;
+  cTValue *oldv;
+
+  while (!tref_istab(ix->tab)) { /* Handle non-table lookup. */
+    /* Never call raw lj_record_idx() on non-table. */
+    lj_assertJ(ix->idxchain != 0, "bad usage");
+    if (!lj_record_mm_lookup(J, ix, ix->val ? MM_newindex : MM_index))
+      lj_trace_err(J, LJ_TRERR_NOMM);
+  handlemm:
+    if (tref_isfunc(ix->mobj)) {  /* Handle metamethod call. */
+      BCReg func = rec_mm_prep(J, ix->val ? lj_cont_nop : lj_cont_ra);
+      TRef *base = J->base + func + LJ_FR2;
+      TValue *tv = J->L->base + func + LJ_FR2;
+      base[-LJ_FR2] = ix->mobj; base[1] = ix->tab; base[2] = ix->key;
+      setfuncV(J->L, tv-LJ_FR2, funcV(&ix->mobjv));
+      copyTV(J->L, tv+1, &ix->tabv);
+      copyTV(J->L, tv+2, &ix->keyv);
+      if (ix->val) {
+	base[3] = ix->val;
+	copyTV(J->L, tv+3, &ix->valv);
+	lj_record_call(J, func, 3);  /* mobj(tab, key, val) */
+	return 0;
+      } else {
+	lj_record_call(J, func, 2);  /* res = mobj(tab, key) */
+	return 0;  /* No result yet. */
+      }
+    }
+#if LJ_HASBUFFER
+    /* The index table of buffer objects is treated as immutable. */
+    if (ix->mt == TREF_NIL && !ix->val &&
+	tref_isudata(ix->tab) && udataV(&ix->tabv)->udtype == UDTYPE_BUFFER &&
+	tref_istab(ix->mobj) && tref_isstr(ix->key) && tref_isk(ix->key)) {
+      cTValue *val = lj_tab_getstr(tabV(&ix->mobjv), strV(&ix->keyv));
+      TRef tr = lj_record_constify(J, val);
+      if (tr) return tr;  /* Specialize to the value, i.e. a method. */
+    }
+#endif
+    /* Otherwise retry lookup with metaobject. */
+    ix->tab = ix->mobj;
+    copyTV(J->L, &ix->tabv, &ix->mobjv);
+    if (--ix->idxchain == 0)
+      lj_trace_err(J, LJ_TRERR_IDXLOOP);
+  }
+
+  /* First catch nil and NaN keys for tables. */
+  if (tvisnil(&ix->keyv) || (tvisnum(&ix->keyv) && tvisnan(&ix->keyv))) {
+    if (ix->val)  /* Better fail early. */
+      lj_trace_err(J, LJ_TRERR_STORENN);
+    if (tref_isk(ix->key)) {
+      if (ix->idxchain && lj_record_mm_lookup(J, ix, MM_index))
+	goto handlemm;
+      return TREF_NIL;
+    }
+  }
+
+  /* Record the key lookup. */
+  xref = rec_idx_key(J, ix, &rbref, &rbguard);
+  xrefop = IR(tref_ref(xref))->o;
+  loadop = xrefop == IR_AREF ? IR_ALOAD : IR_HLOAD;
+  /* The lj_meta_tset() inconsistency is gone, but better play safe. */
+  oldv = xrefop == IR_KKPTR ? (cTValue *)ir_kptr(IR(tref_ref(xref))) : ix->oldv;
+
+  if (ix->val == 0) {  /* Indexed load */
+    IRType t = itype2irt(oldv);
+    TRef res;
+    if (oldv == niltvg(J2G(J))) {
+      emitir(IRTG(IR_EQ, IRT_PGC), xref, lj_ir_kkptr(J, niltvg(J2G(J))));
+      res = TREF_NIL;
+    } else {
+      res = emitir(IRTG(loadop, t), xref, 0);
+    }
+    if (tref_ref(res) < rbref) {  /* HREFK + load forwarded? */
+      lj_ir_rollback(J, rbref);  /* Rollback to eliminate hmask guard. */
+      J->guardemit = rbguard;
+    }
+    if (t == IRT_NIL && ix->idxchain && lj_record_mm_lookup(J, ix, MM_index))
+      goto handlemm;
+    if (irtype_ispri(t)) res = TREF_PRI(t);  /* Canonicalize primitives. */
+    return res;
+  } else {  /* Indexed store. */
+    GCtab *mt = tabref(tabV(&ix->tabv)->metatable);
+    int keybarrier = tref_isgcv(ix->key) && !tref_isnil(ix->val);
+    if (tref_ref(xref) < rbref) {  /* HREFK forwarded? */
+      lj_ir_rollback(J, rbref);  /* Rollback to eliminate hmask guard. */
+      J->guardemit = rbguard;
+    }
+    if (tvisnil(oldv)) {  /* Previous value was nil? */
+      /* Need to duplicate the hasmm check for the early guards. */
+      int hasmm = 0;
+      if (ix->idxchain && mt) {
+	cTValue *mo = lj_tab_getstr(mt, mmname_str(J2G(J), MM_newindex));
+	hasmm = mo && !tvisnil(mo);
+      }
+      if (hasmm)
+	emitir(IRTG(loadop, IRT_NIL), xref, 0);  /* Guard for nil value. */
+      else if (xrefop == IR_HREF)
+	emitir(IRTG(oldv == niltvg(J2G(J)) ? IR_EQ : IR_NE, IRT_PGC),
+	       xref, lj_ir_kkptr(J, niltvg(J2G(J))));
+      if (ix->idxchain && lj_record_mm_lookup(J, ix, MM_newindex)) {
+	lj_assertJ(hasmm, "inconsistent metamethod handling");
+	goto handlemm;
+      }
+      lj_assertJ(!hasmm, "inconsistent metamethod handling");
+      if (oldv == niltvg(J2G(J))) {  /* Need to insert a new key. */
+	TRef key = ix->key;
+	if (tref_isinteger(key))  /* NEWREF needs a TValue as a key. */
+	  key = emitir(IRTN(IR_CONV), key, IRCONV_NUM_INT);
+	xref = emitir(IRT(IR_NEWREF, IRT_PGC), ix->tab, key);
+	keybarrier = 0;  /* NEWREF already takes care of the key barrier. */
+#ifdef LUAJIT_ENABLE_TABLE_BUMP
+	if ((J->flags & JIT_F_OPT_SINK))  /* Avoid a separate flag. */
+	  rec_idx_bump(J, ix);
+#endif
+      }
+    } else if (!lj_opt_fwd_wasnonnil(J, loadop, tref_ref(xref))) {
+      /* Cannot derive that the previous value was non-nil, must do checks. */
+      if (xrefop == IR_HREF)  /* Guard against store to niltv. */
+	emitir(IRTG(IR_NE, IRT_PGC), xref, lj_ir_kkptr(J, niltvg(J2G(J))));
+      if (ix->idxchain) {  /* Metamethod lookup required? */
+	/* A check for NULL metatable is cheaper (hoistable) than a load. */
+	if (!mt) {
+	  TRef mtref = emitir(IRT(IR_FLOAD, IRT_TAB), ix->tab, IRFL_TAB_META);
+	  emitir(IRTG(IR_EQ, IRT_TAB), mtref, lj_ir_knull(J, IRT_TAB));
+	} else {
+	  IRType t = itype2irt(oldv);
+	  emitir(IRTG(loadop, t), xref, 0);  /* Guard for non-nil value. */
+	}
+      }
+    } else {
+      keybarrier = 0;  /* Previous non-nil value kept the key alive. */
+    }
+    /* Convert int to number before storing. */
+    if (!LJ_DUALNUM && tref_isinteger(ix->val))
+      ix->val = emitir(IRTN(IR_CONV), ix->val, IRCONV_NUM_INT);
+    emitir(IRT(loadop+IRDELTA_L2S, tref_type(ix->val)), xref, ix->val);
+    if (keybarrier || tref_isgcv(ix->val))
+      emitir(IRT(IR_TBAR, IRT_NIL), ix->tab, 0);
+    /* Invalidate neg. metamethod cache for stores with certain string keys. */
+    if (!nommstr(J, ix->key)) {
+      TRef fref = emitir(IRT(IR_FREF, IRT_PGC), ix->tab, IRFL_TAB_NOMM);
+      emitir(IRT(IR_FSTORE, IRT_U8), fref, lj_ir_kint(J, 0));
+    }
+    J->needsnap = 1;
+    return 0;
+  }
+}
+
+/* Determine result type of table traversal. */
+static IRType rec_next_types(GCtab *t, uint32_t idx)
+{
+  for (; idx < t->asize; idx++) {
+    cTValue *a = arrayslot(t, idx);
+    if (LJ_LIKELY(!tvisnil(a)))
+      return (LJ_DUALNUM ? IRT_INT : IRT_NUM) + (itype2irt(a) << 8);
+  }
+  idx -= t->asize;
+  for (; idx <= t->hmask; idx++) {
+    Node *n = &noderef(t->node)[idx];
+    if (!tvisnil(&n->val))
+      return itype2irt(&n->key) + (itype2irt(&n->val) << 8);
+  }
+  return IRT_NIL + (IRT_NIL << 8);
+}
+
+/* Record a table traversal step aka next(). */
+int lj_record_next(jit_State *J, RecordIndex *ix)
+{
+  IRType t, tkey, tval;
+  TRef trvk;
+  t = rec_next_types(tabV(&ix->tabv), ix->keyv.u32.lo);
+  tkey = (t & 0xff); tval = (t >> 8);
+  trvk = lj_ir_call(J, IRCALL_lj_vm_next, ix->tab, ix->key);
+  if (ix->mobj || tkey == IRT_NIL) {
+    TRef idx = emitir(IRTI(IR_HIOP), trvk, trvk);
+    /* Always check for invalid key from next() for nil result. */
+    if (!ix->mobj) emitir(IRTGI(IR_NE), idx, lj_ir_kint(J, -1));
+    ix->mobj = idx;
+  }
+  ix->key = lj_record_vload(J, trvk, 1, tkey);
+  if (tkey == IRT_NIL || ix->idxchain) {  /* Omit value type check. */
+    ix->val = TREF_NIL;
+    return 1;
+  } else {  /* Need value. */
+    ix->val = lj_record_vload(J, trvk, 0, tval);
+    return 2;
+  }
+}
+
+static void rec_tsetm(jit_State *J, BCReg ra, BCReg rn, int32_t i)
+{
+  RecordIndex ix;
+  cTValue *basev = J->L->base;
+  GCtab *t = tabV(&basev[ra-1]);
+  settabV(J->L, &ix.tabv, t);
+  ix.tab = getslot(J, ra-1);
+  ix.idxchain = 0;
+#ifdef LUAJIT_ENABLE_TABLE_BUMP
+  if ((J->flags & JIT_F_OPT_SINK)) {
+    if (t->asize < i+rn-ra)
+      lj_tab_reasize(J->L, t, i+rn-ra);
+    setnilV(&ix.keyv);
+    rec_idx_bump(J, &ix);
+  }
+#endif
+  for (; ra < rn; i++, ra++) {
+    setintV(&ix.keyv, i);
+    ix.key = lj_ir_kint(J, i);
+    copyTV(J->L, &ix.valv, &basev[ra]);
+    ix.val = getslot(J, ra);
+    lj_record_idx(J, &ix);
+  }
+}
+
+/* -- Upvalue access ------------------------------------------------------ */
+
+/* Check whether upvalue is immutable and ok to constify. */
+static int rec_upvalue_constify(jit_State *J, GCupval *uvp)
+{
+  if (uvp->immutable) {
+    cTValue *o = uvval(uvp);
+    /* Don't constify objects that may retain large amounts of memory. */
+#if LJ_HASFFI
+    if (tviscdata(o)) {
+      GCcdata *cd = cdataV(o);
+      if (!cdataisv(cd) && !(cd->marked & LJ_GC_CDATA_FIN)) {
+	CType *ct = ctype_raw(ctype_ctsG(J2G(J)), cd->ctypeid);
+	if (!ctype_hassize(ct->info) || ct->size <= 16)
+	  return 1;
+      }
+      return 0;
+    }
+#else
+    UNUSED(J);
+#endif
+    if (!(tvistab(o) || tvisudata(o) || tvisthread(o)))
+      return 1;
+  }
+  return 0;
+}
+
+/* Record upvalue load/store. */
+static TRef rec_upvalue(jit_State *J, uint32_t uv, TRef val)
+{
+  GCupval *uvp = &gcref(J->fn->l.uvptr[uv])->uv;
+  TRef fn = getcurrf(J);
+  IRRef uref;
+  int needbarrier = 0;
+  if (rec_upvalue_constify(J, uvp)) {  /* Try to constify immutable upvalue. */
+    TRef tr, kfunc;
+    lj_assertJ(val == 0, "bad usage");
+    if (!tref_isk(fn)) {  /* Late specialization of current function. */
+      if (J->pt->flags >= PROTO_CLC_POLY)
+	goto noconstify;
+      kfunc = lj_ir_kfunc(J, J->fn);
+      emitir(IRTG(IR_EQ, IRT_FUNC), fn, kfunc);
+#if LJ_FR2
+      J->base[-2] = kfunc;
+#else
+      J->base[-1] = kfunc | TREF_FRAME;
+#endif
+      fn = kfunc;
+    }
+    tr = lj_record_constify(J, uvval(uvp));
+    if (tr)
+      return tr;
+  }
+noconstify:
+  /* Note: this effectively limits LJ_MAX_UPVAL to 127. */
+  uv = (uv << 8) | (hashrot(uvp->dhash, uvp->dhash + HASH_BIAS) & 0xff);
+  if (!uvp->closed) {
+    uref = tref_ref(emitir(IRTG(IR_UREFO, IRT_PGC), fn, uv));
+    /* In current stack? */
+    if (uvval(uvp) >= tvref(J->L->stack) &&
+	uvval(uvp) < tvref(J->L->maxstack)) {
+      int32_t slot = (int32_t)(uvval(uvp) - (J->L->base - J->baseslot));
+      if (slot >= 0) {  /* Aliases an SSA slot? */
+	emitir(IRTG(IR_EQ, IRT_PGC),
+	       REF_BASE,
+	       emitir(IRT(IR_ADD, IRT_PGC), uref,
+		      lj_ir_kint(J, (slot - 1 - LJ_FR2) * -8)));
+	slot -= (int32_t)J->baseslot;  /* Note: slot number may be negative! */
+	if (val == 0) {
+	  return getslot(J, slot);
+	} else {
+	  J->base[slot] = val;
+	  if (slot >= (int32_t)J->maxslot) J->maxslot = (BCReg)(slot+1);
+	  return 0;
+	}
+      }
+    }
+    emitir(IRTG(IR_UGT, IRT_PGC),
+	   emitir(IRT(IR_SUB, IRT_PGC), uref, REF_BASE),
+	   lj_ir_kint(J, (J->baseslot + J->maxslot) * 8));
+  } else {
+    needbarrier = 1;
+    uref = tref_ref(emitir(IRTG(IR_UREFC, IRT_PGC), fn, uv));
+  }
+  if (val == 0) {  /* Upvalue load */
+    IRType t = itype2irt(uvval(uvp));
+    TRef res = emitir(IRTG(IR_ULOAD, t), uref, 0);
+    if (irtype_ispri(t)) res = TREF_PRI(t);  /* Canonicalize primitive refs. */
+    return res;
+  } else {  /* Upvalue store. */
+    /* Convert int to number before storing. */
+    if (!LJ_DUALNUM && tref_isinteger(val))
+      val = emitir(IRTN(IR_CONV), val, IRCONV_NUM_INT);
+    emitir(IRT(IR_USTORE, tref_type(val)), uref, val);
+    if (needbarrier && tref_isgcv(val))
+      emitir(IRT(IR_OBAR, IRT_NIL), uref, val);
+    J->needsnap = 1;
+    return 0;
+  }
+}
+
+/* -- Record calls to Lua functions --------------------------------------- */
+
+/* Check unroll limits for calls. */
+static void check_call_unroll(jit_State *J, TraceNo lnk)
+{
+  cTValue *frame = J->L->base - 1;
+  void *pc = mref(frame_func(frame)->l.pc, void);
+  int32_t depth = J->framedepth;
+  int32_t count = 0;
+  if ((J->pt->flags & PROTO_VARARG)) depth--;  /* Vararg frame still missing. */
+  for (; depth > 0; depth--) {  /* Count frames with same prototype. */
+    if (frame_iscont(frame)) depth--;
+    frame = frame_prev(frame);
+    if (mref(frame_func(frame)->l.pc, void) == pc)
+      count++;
+  }
+  if (J->pc == J->startpc) {
+    if (count + J->tailcalled > J->param[JIT_P_recunroll]) {
+      J->pc++;
+      if (J->framedepth + J->retdepth == 0)
+	lj_record_stop(J, LJ_TRLINK_TAILREC, J->cur.traceno);  /* Tail-rec. */
+      else
+	lj_record_stop(J, LJ_TRLINK_UPREC, J->cur.traceno);  /* Up-recursion. */
+    }
+  } else {
+    if (count > J->param[JIT_P_callunroll]) {
+      if (lnk) {  /* Possible tail- or up-recursion. */
+	lj_trace_flush(J, lnk);  /* Flush trace that only returns. */
+	/* Set a small, pseudo-random hotcount for a quick retry of JFUNC*. */
+	hotcount_set(J2GG(J), J->pc+1, lj_prng_u64(&J2G(J)->prng) & 15u);
+      }
+      lj_trace_err(J, LJ_TRERR_CUNROLL);
+    }
+  }
+}
+
+/* Record Lua function setup. */
+static void rec_func_setup(jit_State *J)
+{
+  GCproto *pt = J->pt;
+  BCReg s, numparams = pt->numparams;
+  if ((pt->flags & PROTO_NOJIT))
+    lj_trace_err(J, LJ_TRERR_CJITOFF);
+  if (J->baseslot + pt->framesize >= LJ_MAX_JSLOTS)
+    lj_trace_err(J, LJ_TRERR_STACKOV);
+  /* Fill up missing parameters with nil. */
+  for (s = J->maxslot; s < numparams; s++)
+    J->base[s] = TREF_NIL;
+  /* The remaining slots should never be read before they are written. */
+  J->maxslot = numparams;
+}
+
+/* Record Lua vararg function setup. */
+static void rec_func_vararg(jit_State *J)
+{
+  GCproto *pt = J->pt;
+  BCReg s, fixargs, vframe = J->maxslot+1+LJ_FR2;
+  lj_assertJ((pt->flags & PROTO_VARARG), "FUNCV in non-vararg function");
+  if (J->baseslot + vframe + pt->framesize >= LJ_MAX_JSLOTS)
+    lj_trace_err(J, LJ_TRERR_STACKOV);
+  J->base[vframe-1-LJ_FR2] = J->base[-1-LJ_FR2];  /* Copy function up. */
+#if LJ_FR2
+  J->base[vframe-1] = TREF_FRAME;
+#endif
+  /* Copy fixarg slots up and set their original slots to nil. */
+  fixargs = pt->numparams < J->maxslot ? pt->numparams : J->maxslot;
+  for (s = 0; s < fixargs; s++) {
+    J->base[vframe+s] = J->base[s];
+    J->base[s] = TREF_NIL;
+  }
+  J->maxslot = fixargs;
+  J->framedepth++;
+  J->base += vframe;
+  J->baseslot += vframe;
+}
+
+/* Record entry to a Lua function. */
+static void rec_func_lua(jit_State *J)
+{
+  rec_func_setup(J);
+  check_call_unroll(J, 0);
+}
+
+/* Record entry to an already compiled function. */
+static void rec_func_jit(jit_State *J, TraceNo lnk)
+{
+  GCtrace *T;
+  rec_func_setup(J);
+  T = traceref(J, lnk);
+  if (T->linktype == LJ_TRLINK_RETURN) {  /* Trace returns to interpreter? */
+    check_call_unroll(J, lnk);
+    /* Temporarily unpatch JFUNC* to continue recording across function. */
+    J->patchins = *J->pc;
+    J->patchpc = (BCIns *)J->pc;
+    *J->patchpc = T->startins;
+    return;
+  }
+  J->instunroll = 0;  /* Cannot continue across a compiled function. */
+  if (J->pc == J->startpc && J->framedepth + J->retdepth == 0)
+    lj_record_stop(J, LJ_TRLINK_TAILREC, J->cur.traceno);  /* Extra tail-rec. */
+  else
+    lj_record_stop(J, LJ_TRLINK_ROOT, lnk);  /* Link to the function. */
+}
+
+/* -- Vararg handling ----------------------------------------------------- */
+
+/* Detect y = select(x, ...) idiom. */
+static int select_detect(jit_State *J)
+{
+  BCIns ins = J->pc[1];
+  if (bc_op(ins) == BC_CALLM && bc_b(ins) == 2 && bc_c(ins) == 1) {
+    cTValue *func = &J->L->base[bc_a(ins)];
+    if (tvisfunc(func) && funcV(func)->c.ffid == FF_select) {
+      TRef kfunc = lj_ir_kfunc(J, funcV(func));
+      emitir(IRTG(IR_EQ, IRT_FUNC), getslot(J, bc_a(ins)), kfunc);
+      return 1;
+    }
+  }
+  return 0;
+}
+
+/* Record vararg instruction. */
+static void rec_varg(jit_State *J, BCReg dst, ptrdiff_t nresults)
+{
+  int32_t numparams = J->pt->numparams;
+  ptrdiff_t nvararg = frame_delta(J->L->base-1) - numparams - 1 - LJ_FR2;
+  lj_assertJ(frame_isvarg(J->L->base-1), "VARG in non-vararg frame");
+  if (LJ_FR2 && dst > J->maxslot)
+    J->base[dst-1] = 0;  /* Prevent resurrection of unrelated slot. */
+  if (J->framedepth > 0) {  /* Simple case: varargs defined on-trace. */
+    ptrdiff_t i;
+    if (nvararg < 0) nvararg = 0;
+    if (nresults == -1) {
+      nresults = nvararg;
+      J->maxslot = dst + (BCReg)nvararg;
+    } else if (dst + nresults > J->maxslot) {
+      J->maxslot = dst + (BCReg)nresults;
+    }
+    for (i = 0; i < nresults; i++)
+      J->base[dst+i] = i < nvararg ? getslot(J, i - nvararg - 1 - LJ_FR2) : TREF_NIL;
+  } else {  /* Unknown number of varargs passed to trace. */
+    TRef fr = emitir(IRTI(IR_SLOAD), LJ_FR2, IRSLOAD_READONLY|IRSLOAD_FRAME);
+    int32_t frofs = 8*(1+LJ_FR2+numparams)+FRAME_VARG;
+    if (nresults >= 0) {  /* Known fixed number of results. */
+      ptrdiff_t i;
+      if (nvararg > 0) {
+	ptrdiff_t nload = nvararg >= nresults ? nresults : nvararg;
+	TRef vbase;
+	if (nvararg >= nresults)
+	  emitir(IRTGI(IR_GE), fr, lj_ir_kint(J, frofs+8*(int32_t)nresults));
+	else
+	  emitir(IRTGI(IR_EQ), fr,
+		 lj_ir_kint(J, (int32_t)frame_ftsz(J->L->base-1)));
+	vbase = emitir(IRT(IR_SUB, IRT_IGC), REF_BASE, fr);
+	vbase = emitir(IRT(IR_ADD, IRT_PGC), vbase, lj_ir_kint(J, frofs-8*(1+LJ_FR2)));
+	for (i = 0; i < nload; i++) {
+	  IRType t = itype2irt(&J->L->base[i-1-LJ_FR2-nvararg]);
+	  J->base[dst+i] = lj_record_vload(J, vbase, (MSize)i, t);
+	}
+      } else {
+	emitir(IRTGI(IR_LE), fr, lj_ir_kint(J, frofs));
+	nvararg = 0;
+      }
+      for (i = nvararg; i < nresults; i++)
+	J->base[dst+i] = TREF_NIL;
+      if (dst + (BCReg)nresults > J->maxslot)
+	J->maxslot = dst + (BCReg)nresults;
+    } else if (select_detect(J)) {  /* y = select(x, ...) */
+      TRef tridx = J->base[dst-1];
+      TRef tr = TREF_NIL;
+      ptrdiff_t idx = lj_ffrecord_select_mode(J, tridx, &J->L->base[dst-1]);
+      if (idx < 0) goto nyivarg;
+      if (idx != 0 && !tref_isinteger(tridx))
+	tridx = emitir(IRTGI(IR_CONV), tridx, IRCONV_INT_NUM|IRCONV_INDEX);
+      if (idx != 0 && tref_isk(tridx)) {
+	emitir(IRTGI(idx <= nvararg ? IR_GE : IR_LT),
+	       fr, lj_ir_kint(J, frofs+8*(int32_t)idx));
+	frofs -= 8;  /* Bias for 1-based index. */
+      } else if (idx <= nvararg) {  /* Compute size. */
+	TRef tmp = emitir(IRTI(IR_ADD), fr, lj_ir_kint(J, -frofs));
+	if (numparams)
+	  emitir(IRTGI(IR_GE), tmp, lj_ir_kint(J, 0));
+	tr = emitir(IRTI(IR_BSHR), tmp, lj_ir_kint(J, 3));
+	if (idx != 0) {
+	  tridx = emitir(IRTI(IR_ADD), tridx, lj_ir_kint(J, -1));
+	  rec_idx_abc(J, tr, tridx, (uint32_t)nvararg);
+	}
+      } else {
+	TRef tmp = lj_ir_kint(J, frofs);
+	if (idx != 0) {
+	  TRef tmp2 = emitir(IRTI(IR_BSHL), tridx, lj_ir_kint(J, 3));
+	  tmp = emitir(IRTI(IR_ADD), tmp2, tmp);
+	} else {
+	  tr = lj_ir_kint(J, 0);
+	}
+	emitir(IRTGI(IR_LT), fr, tmp);
+      }
+      if (idx != 0 && idx <= nvararg) {
+	IRType t;
+	TRef aref, vbase = emitir(IRT(IR_SUB, IRT_IGC), REF_BASE, fr);
+	vbase = emitir(IRT(IR_ADD, IRT_PGC), vbase,
+		       lj_ir_kint(J, frofs-(8<<LJ_FR2)));
+	t = itype2irt(&J->L->base[idx-2-LJ_FR2-nvararg]);
+	aref = emitir(IRT(IR_AREF, IRT_PGC), vbase, tridx);
+	tr = lj_record_vload(J, aref, 0, t);
+      }
+      J->base[dst-2-LJ_FR2] = tr;
+      J->maxslot = dst-1-LJ_FR2;
+      J->bcskip = 2;  /* Skip CALLM + select. */
+    } else {
+    nyivarg:
+      setintV(&J->errinfo, BC_VARG);
+      lj_trace_err_info(J, LJ_TRERR_NYIBC);
+    }
+  }
+  if (J->baseslot + J->maxslot >= LJ_MAX_JSLOTS)
+    lj_trace_err(J, LJ_TRERR_STACKOV);
+}
+
+/* -- Record allocations -------------------------------------------------- */
+
+static TRef rec_tnew(jit_State *J, uint32_t ah)
+{
+  uint32_t asize = ah & 0x7ff;
+  uint32_t hbits = ah >> 11;
+  TRef tr;
+  if (asize == 0x7ff) asize = 0x801;
+  tr = emitir(IRTG(IR_TNEW, IRT_TAB), asize, hbits);
+#ifdef LUAJIT_ENABLE_TABLE_BUMP
+  J->rbchash[(tr & (RBCHASH_SLOTS-1))].ref = tref_ref(tr);
+  setmref(J->rbchash[(tr & (RBCHASH_SLOTS-1))].pc, J->pc);
+  setgcref(J->rbchash[(tr & (RBCHASH_SLOTS-1))].pt, obj2gco(J->pt));
+#endif
+  return tr;
+}
+
+/* -- Concatenation ------------------------------------------------------- */
+
+static TRef rec_cat(jit_State *J, BCReg baseslot, BCReg topslot)
+{
+  TRef *top = &J->base[topslot];
+  TValue savetv[5+LJ_FR2];
+  BCReg s;
+  RecordIndex ix;
+  lj_assertJ(baseslot < topslot, "bad CAT arg");
+  for (s = baseslot; s <= topslot; s++)
+    (void)getslot(J, s);  /* Ensure all arguments have a reference. */
+  if (tref_isnumber_str(top[0]) && tref_isnumber_str(top[-1])) {
+    TRef tr, hdr, *trp, *xbase, *base = &J->base[baseslot];
+    /* First convert numbers to strings. */
+    for (trp = top; trp >= base; trp--) {
+      if (tref_isnumber(*trp))
+	*trp = emitir(IRT(IR_TOSTR, IRT_STR), *trp,
+		      tref_isnum(*trp) ? IRTOSTR_NUM : IRTOSTR_INT);
+      else if (!tref_isstr(*trp))
+	break;
+    }
+    xbase = ++trp;
+    tr = hdr = emitir(IRT(IR_BUFHDR, IRT_PGC),
+		      lj_ir_kptr(J, &J2G(J)->tmpbuf), IRBUFHDR_RESET);
+    do {
+      tr = emitir(IRTG(IR_BUFPUT, IRT_PGC), tr, *trp++);
+    } while (trp <= top);
+    tr = emitir(IRTG(IR_BUFSTR, IRT_STR), tr, hdr);
+    J->maxslot = (BCReg)(xbase - J->base);
+    if (xbase == base) return tr;  /* Return simple concatenation result. */
+    /* Pass partial result. */
+    topslot = J->maxslot--;
+    *xbase = tr;
+    top = xbase;
+    setstrV(J->L, &ix.keyv, &J2G(J)->strempty);  /* Simulate string result. */
+  } else {
+    J->maxslot = topslot-1;
+    copyTV(J->L, &ix.keyv, &J->L->base[topslot]);
+  }
+  copyTV(J->L, &ix.tabv, &J->L->base[topslot-1]);
+  ix.tab = top[-1];
+  ix.key = top[0];
+  memcpy(savetv, &J->L->base[topslot-1], sizeof(savetv));  /* Save slots. */
+  rec_mm_arith(J, &ix, MM_concat);  /* Call __concat metamethod. */
+  memcpy(&J->L->base[topslot-1], savetv, sizeof(savetv));  /* Restore slots. */
+  return 0;  /* No result yet. */
+}
+
+/* -- Record bytecode ops ------------------------------------------------- */
+
+/* Prepare for comparison. */
+static void rec_comp_prep(jit_State *J)
+{
+  /* Prevent merging with snapshot #0 (GC exit) since we fixup the PC. */
+  if (J->cur.nsnap == 1 && J->cur.snap[0].ref == J->cur.nins)
+    emitir_raw(IRT(IR_NOP, IRT_NIL), 0, 0);
+  lj_snap_add(J);
+}
+
+/* Fixup comparison. */
+static void rec_comp_fixup(jit_State *J, const BCIns *pc, int cond)
+{
+  BCIns jmpins = pc[1];
+  const BCIns *npc = pc + 2 + (cond ? bc_j(jmpins) : 0);
+  SnapShot *snap = &J->cur.snap[J->cur.nsnap-1];
+  /* Set PC to opposite target to avoid re-recording the comp. in side trace. */
+#if LJ_FR2
+  SnapEntry *flink = &J->cur.snapmap[snap->mapofs + snap->nent];
+  uint64_t pcbase;
+  memcpy(&pcbase, flink, sizeof(uint64_t));
+  pcbase = (pcbase & 0xff) | (u64ptr(npc) << 8);
+  memcpy(flink, &pcbase, sizeof(uint64_t));
+#else
+  J->cur.snapmap[snap->mapofs + snap->nent] = SNAP_MKPC(npc);
+#endif
+  J->needsnap = 1;
+  if (bc_a(jmpins) < J->maxslot) J->maxslot = bc_a(jmpins);
+  lj_snap_shrink(J);  /* Shrink last snapshot if possible. */
+}
+
+/* Record the next bytecode instruction (_before_ it's executed). */
+void lj_record_ins(jit_State *J)
+{
+  cTValue *lbase;
+  RecordIndex ix;
+  const BCIns *pc;
+  BCIns ins;
+  BCOp op;
+  TRef ra, rb, rc;
+
+  /* Perform post-processing action before recording the next instruction. */
+  if (LJ_UNLIKELY(J->postproc != LJ_POST_NONE)) {
+    switch (J->postproc) {
+    case LJ_POST_FIXCOMP:  /* Fixup comparison. */
+      pc = (const BCIns *)(uintptr_t)J2G(J)->tmptv.u64;
+      rec_comp_fixup(J, pc, (!tvistruecond(&J2G(J)->tmptv2) ^ (bc_op(*pc)&1)));
+      /* fallthrough */
+    case LJ_POST_FIXGUARD:  /* Fixup and emit pending guard. */
+    case LJ_POST_FIXGUARDSNAP:  /* Fixup and emit pending guard and snapshot. */
+      if (!tvistruecond(&J2G(J)->tmptv2)) {
+	J->fold.ins.o ^= 1;  /* Flip guard to opposite. */
+	if (J->postproc == LJ_POST_FIXGUARDSNAP) {
+	  SnapShot *snap = &J->cur.snap[J->cur.nsnap-1];
+	  J->cur.snapmap[snap->mapofs+snap->nent-1]--;  /* False -> true. */
+	}
+      }
+      lj_opt_fold(J);  /* Emit pending guard. */
+      /* fallthrough */
+    case LJ_POST_FIXBOOL:
+      if (!tvistruecond(&J2G(J)->tmptv2)) {
+	BCReg s;
+	TValue *tv = J->L->base;
+	for (s = 0; s < J->maxslot; s++)  /* Fixup stack slot (if any). */
+	  if (J->base[s] == TREF_TRUE && tvisfalse(&tv[s])) {
+	    J->base[s] = TREF_FALSE;
+	    break;
+	  }
+      }
+      break;
+    case LJ_POST_FIXCONST:
+      {
+	BCReg s;
+	TValue *tv = J->L->base;
+	for (s = 0; s < J->maxslot; s++)  /* Constify stack slots (if any). */
+	  if (J->base[s] == TREF_NIL && !tvisnil(&tv[s]))
+	    J->base[s] = lj_record_constify(J, &tv[s]);
+      }
+      break;
+    case LJ_POST_FFRETRY:  /* Suppress recording of retried fast function. */
+      if (bc_op(*J->pc) >= BC__MAX)
+	return;
+      break;
+    default: lj_assertJ(0, "bad post-processing mode"); break;
+    }
+    J->postproc = LJ_POST_NONE;
+  }
+
+  /* Need snapshot before recording next bytecode (e.g. after a store). */
+  if (J->needsnap) {
+    J->needsnap = 0;
+    if (J->pt) lj_snap_purge(J);
+    lj_snap_add(J);
+    J->mergesnap = 1;
+  }
+
+  /* Skip some bytecodes. */
+  if (LJ_UNLIKELY(J->bcskip > 0)) {
+    J->bcskip--;
+    return;
+  }
+
+  /* Record only closed loops for root traces. */
+  pc = J->pc;
+  if (J->framedepth == 0 &&
+     (MSize)((char *)pc - (char *)J->bc_min) >= J->bc_extent)
+    lj_trace_err(J, LJ_TRERR_LLEAVE);
+
+#ifdef LUA_USE_ASSERT
+  rec_check_slots(J);
+  rec_check_ir(J);
+#endif
+
+#if LJ_HASPROFILE
+  rec_profile_ins(J, pc);
+#endif
+
+  /* Keep a copy of the runtime values of var/num/str operands. */
+#define rav	(&ix.valv)
+#define rbv	(&ix.tabv)
+#define rcv	(&ix.keyv)
+
+  lbase = J->L->base;
+  ins = *pc;
+  op = bc_op(ins);
+  ra = bc_a(ins);
+  ix.val = 0;
+  switch (bcmode_a(op)) {
+  case BCMvar:
+    copyTV(J->L, rav, &lbase[ra]); ix.val = ra = getslot(J, ra); break;
+  default: break;  /* Handled later. */
+  }
+  rb = bc_b(ins);
+  rc = bc_c(ins);
+  switch (bcmode_b(op)) {
+  case BCMnone: rb = 0; rc = bc_d(ins); break;  /* Upgrade rc to 'rd'. */
+  case BCMvar:
+    copyTV(J->L, rbv, &lbase[rb]); ix.tab = rb = getslot(J, rb); break;
+  default: break;  /* Handled later. */
+  }
+  switch (bcmode_c(op)) {
+  case BCMvar:
+    copyTV(J->L, rcv, &lbase[rc]); ix.key = rc = getslot(J, rc); break;
+  case BCMpri: setpriV(rcv, ~rc); ix.key = rc = TREF_PRI(IRT_NIL+rc); break;
+  case BCMnum: { cTValue *tv = proto_knumtv(J->pt, rc);
+    copyTV(J->L, rcv, tv); ix.key = rc = tvisint(tv) ? lj_ir_kint(J, intV(tv)) :
+    tv->u32.hi == LJ_KEYINDEX ? (lj_ir_kint(J, 0) | TREF_KEYINDEX) :
+    lj_ir_knumint(J, numV(tv)); } break;
+  case BCMstr: { GCstr *s = gco2str(proto_kgc(J->pt, ~(ptrdiff_t)rc));
+    setstrV(J->L, rcv, s); ix.key = rc = lj_ir_kstr(J, s); } break;
+  default: break;  /* Handled later. */
+  }
+
+  switch (op) {
+
+  /* -- Comparison ops ---------------------------------------------------- */
+
+  case BC_ISLT: case BC_ISGE: case BC_ISLE: case BC_ISGT:
+#if LJ_HASFFI
+    if (tref_iscdata(ra) || tref_iscdata(rc)) {
+      rec_mm_comp_cdata(J, &ix, op, ((int)op & 2) ? MM_le : MM_lt);
+      break;
+    }
+#endif
+    /* Emit nothing for two numeric or string consts. */
+    if (!(tref_isk2(ra,rc) && tref_isnumber_str(ra) && tref_isnumber_str(rc))) {
+      IRType ta = tref_isinteger(ra) ? IRT_INT : tref_type(ra);
+      IRType tc = tref_isinteger(rc) ? IRT_INT : tref_type(rc);
+      int irop;
+      if (ta != tc) {
+	/* Widen mixed number/int comparisons to number/number comparison. */
+	if (ta == IRT_INT && tc == IRT_NUM) {
+	  ra = emitir(IRTN(IR_CONV), ra, IRCONV_NUM_INT);
+	  ta = IRT_NUM;
+	} else if (ta == IRT_NUM && tc == IRT_INT) {
+	  rc = emitir(IRTN(IR_CONV), rc, IRCONV_NUM_INT);
+	} else if (LJ_52) {
+	  ta = IRT_NIL;  /* Force metamethod for different types. */
+	} else if (!((ta == IRT_FALSE || ta == IRT_TRUE) &&
+		     (tc == IRT_FALSE || tc == IRT_TRUE))) {
+	  break;  /* Interpreter will throw for two different types. */
+	}
+      }
+      rec_comp_prep(J);
+      irop = (int)op - (int)BC_ISLT + (int)IR_LT;
+      if (ta == IRT_NUM) {
+	if ((irop & 1)) irop ^= 4;  /* ISGE/ISGT are unordered. */
+	if (!lj_ir_numcmp(numberVnum(rav), numberVnum(rcv), (IROp)irop))
+	  irop ^= 5;
+      } else if (ta == IRT_INT) {
+	if (!lj_ir_numcmp(numberVnum(rav), numberVnum(rcv), (IROp)irop))
+	  irop ^= 1;
+      } else if (ta == IRT_STR) {
+	if (!lj_ir_strcmp(strV(rav), strV(rcv), (IROp)irop)) irop ^= 1;
+	ra = lj_ir_call(J, IRCALL_lj_str_cmp, ra, rc);
+	rc = lj_ir_kint(J, 0);
+	ta = IRT_INT;
+      } else {
+	rec_mm_comp(J, &ix, (int)op);
+	break;
+      }
+      emitir(IRTG(irop, ta), ra, rc);
+      rec_comp_fixup(J, J->pc, ((int)op ^ irop) & 1);
+    }
+    break;
+
+  case BC_ISEQV: case BC_ISNEV:
+  case BC_ISEQS: case BC_ISNES:
+  case BC_ISEQN: case BC_ISNEN:
+  case BC_ISEQP: case BC_ISNEP:
+#if LJ_HASFFI
+    if (tref_iscdata(ra) || tref_iscdata(rc)) {
+      rec_mm_comp_cdata(J, &ix, op, MM_eq);
+      break;
+    }
+#endif
+    /* Emit nothing for two non-table, non-udata consts. */
+    if (!(tref_isk2(ra, rc) && !(tref_istab(ra) || tref_isudata(ra)))) {
+      int diff;
+      rec_comp_prep(J);
+      diff = lj_record_objcmp(J, ra, rc, rav, rcv);
+      if (diff == 2 || !(tref_istab(ra) || tref_isudata(ra)))
+	rec_comp_fixup(J, J->pc, ((int)op & 1) == !diff);
+      else if (diff == 1)  /* Only check __eq if different, but same type. */
+	rec_mm_equal(J, &ix, (int)op);
+    }
+    break;
+
+  /* -- Unary test and copy ops ------------------------------------------- */
+
+  case BC_ISTC: case BC_ISFC:
+    if ((op & 1) == tref_istruecond(rc))
+      rc = 0;  /* Don't store if condition is not true. */
+    /* fallthrough */
+  case BC_IST: case BC_ISF:  /* Type specialization suffices. */
+    if (bc_a(pc[1]) < J->maxslot)
+      J->maxslot = bc_a(pc[1]);  /* Shrink used slots. */
+    break;
+
+  case BC_ISTYPE: case BC_ISNUM:
+    /* These coercions need to correspond with lj_meta_istype(). */
+    if (LJ_DUALNUM && rc == ~LJ_TNUMX+1)
+      ra = lj_opt_narrow_toint(J, ra);
+    else if (rc == ~LJ_TNUMX+2)
+      ra = lj_ir_tonum(J, ra);
+    else if (rc == ~LJ_TSTR+1)
+      ra = lj_ir_tostr(J, ra);
+    /* else: type specialization suffices. */
+    J->base[bc_a(ins)] = ra;
+    break;
+
+  /* -- Unary ops --------------------------------------------------------- */
+
+  case BC_NOT:
+    /* Type specialization already forces const result. */
+    rc = tref_istruecond(rc) ? TREF_FALSE : TREF_TRUE;
+    break;
+
+  case BC_LEN:
+    if (tref_isstr(rc))
+      rc = emitir(IRTI(IR_FLOAD), rc, IRFL_STR_LEN);
+    else if (!LJ_52 && tref_istab(rc))
+      rc = emitir(IRTI(IR_ALEN), rc, TREF_NIL);
+    else
+      rc = rec_mm_len(J, rc, rcv);
+    break;
+
+  /* -- Arithmetic ops ---------------------------------------------------- */
+
+  case BC_UNM:
+    if (tref_isnumber_str(rc)) {
+      rc = lj_opt_narrow_unm(J, rc, rcv);
+    } else {
+      ix.tab = rc;
+      copyTV(J->L, &ix.tabv, rcv);
+      rc = rec_mm_arith(J, &ix, MM_unm);
+    }
+    break;
+
+  case BC_ADDNV: case BC_SUBNV: case BC_MULNV: case BC_DIVNV: case BC_MODNV:
+    /* Swap rb/rc and rbv/rcv. rav is temp. */
+    ix.tab = rc; ix.key = rc = rb; rb = ix.tab;
+    copyTV(J->L, rav, rbv);
+    copyTV(J->L, rbv, rcv);
+    copyTV(J->L, rcv, rav);
+    if (op == BC_MODNV)
+      goto recmod;
+    /* fallthrough */
+  case BC_ADDVN: case BC_SUBVN: case BC_MULVN: case BC_DIVVN:
+  case BC_ADDVV: case BC_SUBVV: case BC_MULVV: case BC_DIVVV: {
+    MMS mm = bcmode_mm(op);
+    if (tref_isnumber_str(rb) && tref_isnumber_str(rc))
+      rc = lj_opt_narrow_arith(J, rb, rc, rbv, rcv,
+			       (int)mm - (int)MM_add + (int)IR_ADD);
+    else
+      rc = rec_mm_arith(J, &ix, mm);
+    break;
+    }
+
+  case BC_MODVN: case BC_MODVV:
+  recmod:
+    if (tref_isnumber_str(rb) && tref_isnumber_str(rc))
+      rc = lj_opt_narrow_mod(J, rb, rc, rbv, rcv);
+    else
+      rc = rec_mm_arith(J, &ix, MM_mod);
+    break;
+
+  case BC_POW:
+    if (tref_isnumber_str(rb) && tref_isnumber_str(rc))
+      rc = lj_opt_narrow_arith(J, rb, rc, rbv, rcv, IR_POW);
+    else
+      rc = rec_mm_arith(J, &ix, MM_pow);
+    break;
+
+  /* -- Miscellaneous ops ------------------------------------------------- */
+
+  case BC_CAT:
+    rc = rec_cat(J, rb, rc);
+    break;
+
+  /* -- Constant and move ops --------------------------------------------- */
+
+  case BC_MOV:
+    /* Clear gap of method call to avoid resurrecting previous refs. */
+    if (ra > J->maxslot) {
+#if LJ_FR2
+      memset(J->base + J->maxslot, 0, (ra - J->maxslot) * sizeof(TRef));
+#else
+      J->base[ra-1] = 0;
+#endif
+    }
+    break;
+  case BC_KSTR: case BC_KNUM: case BC_KPRI:
+    break;
+  case BC_KSHORT:
+    rc = lj_ir_kint(J, (int32_t)(int16_t)rc);
+    break;
+  case BC_KNIL:
+    if (LJ_FR2 && ra > J->maxslot)
+      J->base[ra-1] = 0;
+    while (ra <= rc)
+      J->base[ra++] = TREF_NIL;
+    if (rc >= J->maxslot) J->maxslot = rc+1;
+    break;
+#if LJ_HASFFI
+  case BC_KCDATA:
+    rc = lj_ir_kgc(J, proto_kgc(J->pt, ~(ptrdiff_t)rc), IRT_CDATA);
+    break;
+#endif
+
+  /* -- Upvalue and function ops ------------------------------------------ */
+
+  case BC_UGET:
+    rc = rec_upvalue(J, rc, 0);
+    break;
+  case BC_USETV: case BC_USETS: case BC_USETN: case BC_USETP:
+    rec_upvalue(J, ra, rc);
+    break;
+
+  /* -- Table ops --------------------------------------------------------- */
+
+  case BC_GGET: case BC_GSET:
+    settabV(J->L, &ix.tabv, tabref(J->fn->l.env));
+    ix.tab = emitir(IRT(IR_FLOAD, IRT_TAB), getcurrf(J), IRFL_FUNC_ENV);
+    ix.idxchain = LJ_MAX_IDXCHAIN;
+    rc = lj_record_idx(J, &ix);
+    break;
+
+  case BC_TGETB: case BC_TSETB:
+    setintV(&ix.keyv, (int32_t)rc);
+    ix.key = lj_ir_kint(J, (int32_t)rc);
+    /* fallthrough */
+  case BC_TGETV: case BC_TGETS: case BC_TSETV: case BC_TSETS:
+    ix.idxchain = LJ_MAX_IDXCHAIN;
+    rc = lj_record_idx(J, &ix);
+    break;
+  case BC_TGETR: case BC_TSETR:
+    ix.idxchain = 0;
+    rc = lj_record_idx(J, &ix);
+    break;
+
+  case BC_TSETM:
+    rec_tsetm(J, ra, (BCReg)(J->L->top - J->L->base), (int32_t)rcv->u32.lo);
+    break;
+
+  case BC_TNEW:
+    rc = rec_tnew(J, rc);
+    break;
+  case BC_TDUP:
+    rc = emitir(IRTG(IR_TDUP, IRT_TAB),
+		lj_ir_ktab(J, gco2tab(proto_kgc(J->pt, ~(ptrdiff_t)rc))), 0);
+#ifdef LUAJIT_ENABLE_TABLE_BUMP
+    J->rbchash[(rc & (RBCHASH_SLOTS-1))].ref = tref_ref(rc);
+    setmref(J->rbchash[(rc & (RBCHASH_SLOTS-1))].pc, pc);
+    setgcref(J->rbchash[(rc & (RBCHASH_SLOTS-1))].pt, obj2gco(J->pt));
+#endif
+    break;
+
+  /* -- Calls and vararg handling ----------------------------------------- */
+
+  case BC_ITERC:
+    J->base[ra] = getslot(J, ra-3);
+    J->base[ra+1+LJ_FR2] = getslot(J, ra-2);
+    J->base[ra+2+LJ_FR2] = getslot(J, ra-1);
+    { /* Do the actual copy now because lj_record_call needs the values. */
+      TValue *b = &J->L->base[ra];
+      copyTV(J->L, b, b-3);
+      copyTV(J->L, b+1+LJ_FR2, b-2);
+      copyTV(J->L, b+2+LJ_FR2, b-1);
+    }
+    lj_record_call(J, ra, (ptrdiff_t)rc-1);
+    break;
+
+  /* L->top is set to L->base+ra+rc+NARGS-1+1. See lj_dispatch_ins(). */
+  case BC_CALLM:
+    rc = (BCReg)(J->L->top - J->L->base) - ra - LJ_FR2;
+    /* fallthrough */
+  case BC_CALL:
+    lj_record_call(J, ra, (ptrdiff_t)rc-1);
+    break;
+
+  case BC_CALLMT:
+    rc = (BCReg)(J->L->top - J->L->base) - ra - LJ_FR2;
+    /* fallthrough */
+  case BC_CALLT:
+    lj_record_tailcall(J, ra, (ptrdiff_t)rc-1);
+    break;
+
+  case BC_VARG:
+    rec_varg(J, ra, (ptrdiff_t)rb-1);
+    break;
+
+  /* -- Returns ----------------------------------------------------------- */
+
+  case BC_RETM:
+    /* L->top is set to L->base+ra+rc+NRESULTS-1, see lj_dispatch_ins(). */
+    rc = (BCReg)(J->L->top - J->L->base) - ra + 1;
+    /* fallthrough */
+  case BC_RET: case BC_RET0: case BC_RET1:
+#if LJ_HASPROFILE
+    rec_profile_ret(J);
+#endif
+    lj_record_ret(J, ra, (ptrdiff_t)rc-1);
+    break;
+
+  /* -- Loops and branches ------------------------------------------------ */
+
+  case BC_FORI:
+    if (rec_for(J, pc, 0) != LOOPEV_LEAVE)
+      J->loopref = J->cur.nins;
+    break;
+  case BC_JFORI:
+    lj_assertJ(bc_op(pc[(ptrdiff_t)rc-BCBIAS_J]) == BC_JFORL,
+	       "JFORI does not point to JFORL");
+    if (rec_for(J, pc, 0) != LOOPEV_LEAVE)  /* Link to existing loop. */
+      lj_record_stop(J, LJ_TRLINK_ROOT, bc_d(pc[(ptrdiff_t)rc-BCBIAS_J]));
+    /* Continue tracing if the loop is not entered. */
+    break;
+
+  case BC_FORL:
+    rec_loop_interp(J, pc, rec_for(J, pc+((ptrdiff_t)rc-BCBIAS_J), 1));
+    break;
+  case BC_ITERL:
+    rec_loop_interp(J, pc, rec_iterl(J, *pc));
+    break;
+  case BC_ITERN:
+    rec_loop_interp(J, pc, rec_itern(J, ra, rb));
+    break;
+  case BC_LOOP:
+    rec_loop_interp(J, pc, rec_loop(J, ra, 1));
+    break;
+
+  case BC_JFORL:
+    rec_loop_jit(J, rc, rec_for(J, pc+bc_j(traceref(J, rc)->startins), 1));
+    break;
+  case BC_JITERL:
+    rec_loop_jit(J, rc, rec_iterl(J, traceref(J, rc)->startins));
+    break;
+  case BC_JLOOP:
+    rec_loop_jit(J, rc, rec_loop(J, ra,
+				 !bc_isret(bc_op(traceref(J, rc)->startins)) &&
+				 bc_op(traceref(J, rc)->startins) != BC_ITERN));
+    break;
+
+  case BC_IFORL:
+  case BC_IITERL:
+  case BC_ILOOP:
+  case BC_IFUNCF:
+  case BC_IFUNCV:
+    lj_trace_err(J, LJ_TRERR_BLACKL);
+    break;
+
+  case BC_JMP:
+    if (ra < J->maxslot)
+      J->maxslot = ra;  /* Shrink used slots. */
+    break;
+
+  case BC_ISNEXT:
+    rec_isnext(J, ra);
+    break;
+
+  /* -- Function headers -------------------------------------------------- */
+
+  case BC_FUNCF:
+    rec_func_lua(J);
+    break;
+  case BC_JFUNCF:
+    rec_func_jit(J, rc);
+    break;
+
+  case BC_FUNCV:
+    rec_func_vararg(J);
+    rec_func_lua(J);
+    break;
+  case BC_JFUNCV:
+    /* Cannot happen. No hotcall counting for varag funcs. */
+    lj_assertJ(0, "unsupported vararg hotcall");
+    break;
+
+  case BC_FUNCC:
+  case BC_FUNCCW:
+    lj_ffrecord_func(J);
+    break;
+
+  default:
+    if (op >= BC__MAX) {
+      lj_ffrecord_func(J);
+      break;
+    }
+    /* fallthrough */
+  case BC_UCLO:
+  case BC_FNEW:
+    setintV(&J->errinfo, (int32_t)op);
+    lj_trace_err_info(J, LJ_TRERR_NYIBC);
+    break;
+  }
+
+  /* rc == 0 if we have no result yet, e.g. pending __index metamethod call. */
+  if (bcmode_a(op) == BCMdst && rc) {
+    J->base[ra] = rc;
+    if (ra >= J->maxslot) {
+#if LJ_FR2
+      if (ra > J->maxslot) J->base[ra-1] = 0;
+#endif
+      J->maxslot = ra+1;
+    }
+  }
+
+#undef rav
+#undef rbv
+#undef rcv
+
+  /* Limit the number of recorded IR instructions and constants. */
+  if (J->cur.nins > REF_FIRST+(IRRef)J->param[JIT_P_maxrecord] ||
+      J->cur.nk < REF_BIAS-(IRRef)J->param[JIT_P_maxirconst])
+    lj_trace_err(J, LJ_TRERR_TRACEOV);
+}
+
+/* -- Recording setup ----------------------------------------------------- */
+
+/* Setup recording for a root trace started by a hot loop. */
+static const BCIns *rec_setup_root(jit_State *J)
+{
+  /* Determine the next PC and the bytecode range for the loop. */
+  const BCIns *pcj, *pc = J->pc;
+  BCIns ins = *pc;
+  BCReg ra = bc_a(ins);
+  switch (bc_op(ins)) {
+  case BC_FORL:
+    J->bc_extent = (MSize)(-bc_j(ins))*sizeof(BCIns);
+    pc += 1+bc_j(ins);
+    J->bc_min = pc;
+    break;
+  case BC_ITERL:
+    if (bc_op(pc[-1]) == BC_JLOOP)
+      lj_trace_err(J, LJ_TRERR_LINNER);
+    lj_assertJ(bc_op(pc[-1]) == BC_ITERC, "no ITERC before ITERL");
+    J->maxslot = ra + bc_b(pc[-1]) - 1;
+    J->bc_extent = (MSize)(-bc_j(ins))*sizeof(BCIns);
+    pc += 1+bc_j(ins);
+    lj_assertJ(bc_op(pc[-1]) == BC_JMP, "ITERL does not point to JMP+1");
+    J->bc_min = pc;
+    break;
+  case BC_ITERN:
+    lj_assertJ(bc_op(pc[1]) == BC_ITERL, "no ITERL after ITERN");
+    J->maxslot = ra;
+    J->bc_extent = (MSize)(-bc_j(pc[1]))*sizeof(BCIns);
+    J->bc_min = pc+2 + bc_j(pc[1]);
+    J->state = LJ_TRACE_RECORD_1ST;  /* Record the first ITERN, too. */
+    break;
+  case BC_LOOP:
+    /* Only check BC range for real loops, but not for "repeat until true". */
+    pcj = pc + bc_j(ins);
+    ins = *pcj;
+    if (bc_op(ins) == BC_JMP && bc_j(ins) < 0) {
+      J->bc_min = pcj+1 + bc_j(ins);
+      J->bc_extent = (MSize)(-bc_j(ins))*sizeof(BCIns);
+    }
+    J->maxslot = ra;
+    pc++;
+    break;
+  case BC_RET:
+  case BC_RET0:
+  case BC_RET1:
+    /* No bytecode range check for down-recursive root traces. */
+    J->maxslot = ra + bc_d(ins) - 1;
+    break;
+  case BC_FUNCF:
+    /* No bytecode range check for root traces started by a hot call. */
+    J->maxslot = J->pt->numparams;
+    pc++;
+    break;
+  case BC_CALLM:
+  case BC_CALL:
+  case BC_ITERC:
+    /* No bytecode range check for stitched traces. */
+    pc++;
+    break;
+  default:
+    lj_assertJ(0, "bad root trace start bytecode %d", bc_op(ins));
+    break;
+  }
+  return pc;
+}
+
+/* Setup for recording a new trace. */
+void lj_record_setup(jit_State *J)
+{
+  uint32_t i;
+
+  /* Initialize state related to current trace. */
+  memset(J->slot, 0, sizeof(J->slot));
+  memset(J->chain, 0, sizeof(J->chain));
+#ifdef LUAJIT_ENABLE_TABLE_BUMP
+  memset(J->rbchash, 0, sizeof(J->rbchash));
+#endif
+  memset(J->bpropcache, 0, sizeof(J->bpropcache));
+  J->scev.idx = REF_NIL;
+  setmref(J->scev.pc, NULL);
+
+  J->baseslot = 1+LJ_FR2;  /* Invoking function is at base[-1-LJ_FR2]. */
+  J->base = J->slot + J->baseslot;
+  J->maxslot = 0;
+  J->framedepth = 0;
+  J->retdepth = 0;
+
+  J->instunroll = J->param[JIT_P_instunroll];
+  J->loopunroll = J->param[JIT_P_loopunroll];
+  J->tailcalled = 0;
+  J->loopref = 0;
+
+  J->bc_min = NULL;  /* Means no limit. */
+  J->bc_extent = ~(MSize)0;
+
+  /* Emit instructions for fixed references. Also triggers initial IR alloc. */
+  emitir_raw(IRT(IR_BASE, IRT_PGC), J->parent, J->exitno);
+  for (i = 0; i <= 2; i++) {
+    IRIns *ir = IR(REF_NIL-i);
+    ir->i = 0;
+    ir->t.irt = (uint8_t)(IRT_NIL+i);
+    ir->o = IR_KPRI;
+    ir->prev = 0;
+  }
+  J->cur.nk = REF_TRUE;
+
+  J->startpc = J->pc;
+  setmref(J->cur.startpc, J->pc);
+  if (J->parent) {  /* Side trace. */
+    GCtrace *T = traceref(J, J->parent);
+    TraceNo root = T->root ? T->root : J->parent;
+    J->cur.root = (uint16_t)root;
+    J->cur.startins = BCINS_AD(BC_JMP, 0, 0);
+    /* Check whether we could at least potentially form an extra loop. */
+    if (J->exitno == 0 && T->snap[0].nent == 0) {
+      /* We can narrow a FORL for some side traces, too. */
+      if (J->pc > proto_bc(J->pt) && bc_op(J->pc[-1]) == BC_JFORI &&
+	  bc_d(J->pc[bc_j(J->pc[-1])-1]) == root) {
+	lj_snap_add(J);
+	rec_for_loop(J, J->pc-1, &J->scev, 1);
+	goto sidecheck;
+      }
+    } else {
+      J->startpc = NULL;  /* Prevent forming an extra loop. */
+    }
+    lj_snap_replay(J, T);
+  sidecheck:
+    if ((traceref(J, J->cur.root)->nchild >= J->param[JIT_P_maxside] ||
+	 T->snap[J->exitno].count >= J->param[JIT_P_hotexit] +
+				     J->param[JIT_P_tryside])) {
+      if (bc_op(*J->pc) == BC_JLOOP) {
+	BCIns startins = traceref(J, bc_d(*J->pc))->startins;
+	if (bc_op(startins) == BC_ITERN)
+	  rec_itern(J, bc_a(startins), bc_b(startins));
+      }
+      lj_record_stop(J, LJ_TRLINK_INTERP, 0);
+    }
+  } else {  /* Root trace. */
+    J->cur.root = 0;
+    J->cur.startins = *J->pc;
+    J->pc = rec_setup_root(J);
+    /* Note: the loop instruction itself is recorded at the end and not
+    ** at the start! So snapshot #0 needs to point to the *next* instruction.
+    ** The one exception is BC_ITERN, which sets LJ_TRACE_RECORD_1ST.
+    */
+    lj_snap_add(J);
+    if (bc_op(J->cur.startins) == BC_FORL)
+      rec_for_loop(J, J->pc-1, &J->scev, 1);
+    else if (bc_op(J->cur.startins) == BC_ITERC)
+      J->startpc = NULL;
+    if (1 + J->pt->framesize >= LJ_MAX_JSLOTS)
+      lj_trace_err(J, LJ_TRERR_STACKOV);
+  }
+#if LJ_HASPROFILE
+  J->prev_pt = NULL;
+  J->prev_line = -1;
+#endif
+#ifdef LUAJIT_ENABLE_CHECKHOOK
+  /* Regularly check for instruction/line hooks from compiled code and
+  ** exit to the interpreter if the hooks are set.
+  **
+  ** This is a compile-time option and disabled by default, since the
+  ** hook checks may be quite expensive in tight loops.
+  **
+  ** Note this is only useful if hooks are *not* set most of the time.
+  ** Use this only if you want to *asynchronously* interrupt the execution.
+  **
+  ** You can set the instruction hook via lua_sethook() with a count of 1
+  ** from a signal handler or another native thread. Please have a look
+  ** at the first few functions in luajit.c for an example (Ctrl-C handler).
+  */
+  {
+    TRef tr = emitir(IRT(IR_XLOAD, IRT_U8),
+		     lj_ir_kptr(J, &J2G(J)->hookmask), IRXLOAD_VOLATILE);
+    tr = emitir(IRTI(IR_BAND), tr, lj_ir_kint(J, (LUA_MASKLINE|LUA_MASKCOUNT)));
+    emitir(IRTGI(IR_EQ), tr, lj_ir_kint(J, 0));
+  }
+#endif
+}
+
+#undef IR
+#undef emitir_raw
+#undef emitir
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_record.h b/libs/luajit-cmake/luajit/src/lj_record.h
new file mode 100644
index 0000000..ab2f4c8
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_record.h
@@ -0,0 +1,47 @@
+/*
+** Trace recorder (bytecode -> SSA IR).
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_RECORD_H
+#define _LJ_RECORD_H
+
+#include "lj_obj.h"
+#include "lj_jit.h"
+
+#if LJ_HASJIT
+/* Context for recording an indexed load/store. */
+typedef struct RecordIndex {
+  TValue tabv;		/* Runtime value of table (or indexed object). */
+  TValue keyv;		/* Runtime value of key. */
+  TValue valv;		/* Runtime value of stored value. */
+  TValue mobjv;		/* Runtime value of metamethod object. */
+  GCtab *mtv;		/* Runtime value of metatable object. */
+  cTValue *oldv;	/* Runtime value of previously stored value. */
+  TRef tab;		/* Table (or indexed object) reference. */
+  TRef key;		/* Key reference. */
+  TRef val;		/* Value reference for a store or 0 for a load. */
+  TRef mt;		/* Metatable reference. */
+  TRef mobj;		/* Metamethod object reference. */
+  int idxchain;		/* Index indirections left or 0 for raw lookup. */
+} RecordIndex;
+
+LJ_FUNC int lj_record_objcmp(jit_State *J, TRef a, TRef b,
+			     cTValue *av, cTValue *bv);
+LJ_FUNC void lj_record_stop(jit_State *J, TraceLink linktype, TraceNo lnk);
+LJ_FUNC TRef lj_record_constify(jit_State *J, cTValue *o);
+LJ_FUNC TRef lj_record_vload(jit_State *J, TRef ref, MSize idx, IRType t);
+
+LJ_FUNC void lj_record_call(jit_State *J, BCReg func, ptrdiff_t nargs);
+LJ_FUNC void lj_record_tailcall(jit_State *J, BCReg func, ptrdiff_t nargs);
+LJ_FUNC void lj_record_ret(jit_State *J, BCReg rbase, ptrdiff_t gotresults);
+
+LJ_FUNC int lj_record_mm_lookup(jit_State *J, RecordIndex *ix, MMS mm);
+LJ_FUNC TRef lj_record_idx(jit_State *J, RecordIndex *ix);
+LJ_FUNC int lj_record_next(jit_State *J, RecordIndex *ix);
+
+LJ_FUNC void lj_record_ins(jit_State *J);
+LJ_FUNC void lj_record_setup(jit_State *J);
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_serialize.c b/libs/luajit-cmake/luajit/src/lj_serialize.c
new file mode 100644
index 0000000..f7e5182
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_serialize.c
@@ -0,0 +1,539 @@
+/*
+** Object de/serialization.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_serialize_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASBUFFER
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_udata.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#endif
+#if LJ_HASJIT
+#include "lj_ir.h"
+#endif
+#include "lj_serialize.h"
+
+/* Tags for internal serialization format. */
+enum {
+  SER_TAG_NIL,		/* 0x00 */
+  SER_TAG_FALSE,
+  SER_TAG_TRUE,
+  SER_TAG_NULL,
+  SER_TAG_LIGHTUD32,
+  SER_TAG_LIGHTUD64,
+  SER_TAG_INT,
+  SER_TAG_NUM,
+  SER_TAG_TAB,		/* 0x08 */
+  SER_TAG_DICT_MT = SER_TAG_TAB+6,
+  SER_TAG_DICT_STR,
+  SER_TAG_INT64,	/* 0x10 */
+  SER_TAG_UINT64,
+  SER_TAG_COMPLEX,
+  SER_TAG_0x13,
+  SER_TAG_0x14,
+  SER_TAG_0x15,
+  SER_TAG_0x16,
+  SER_TAG_0x17,
+  SER_TAG_0x18,		/* 0x18 */
+  SER_TAG_0x19,
+  SER_TAG_0x1a,
+  SER_TAG_0x1b,
+  SER_TAG_0x1c,
+  SER_TAG_0x1d,
+  SER_TAG_0x1e,
+  SER_TAG_0x1f,
+  SER_TAG_STR,		/* 0x20 + str->len */
+};
+LJ_STATIC_ASSERT((SER_TAG_TAB & 7) == 0);
+
+/* -- Helper functions ---------------------------------------------------- */
+
+static LJ_AINLINE char *serialize_more(char *w, SBufExt *sbx, MSize sz)
+{
+  if (LJ_UNLIKELY(sz > (MSize)(sbx->e - w))) {
+    sbx->w = w;
+    w = lj_buf_more2((SBuf *)sbx, sz);
+  }
+  return w;
+}
+
+/* Write U124 to buffer. */
+static LJ_NOINLINE char *serialize_wu124_(char *w, uint32_t v)
+{
+  if (v < 0x1fe0) {
+    v -= 0xe0;
+    *w++ = (char)(0xe0 | (v >> 8)); *w++ = (char)v;
+  } else {
+    *w++ = (char)0xff;
+#if LJ_BE
+    v = lj_bswap(v);
+#endif
+    memcpy(w, &v, 4); w += 4;
+  }
+  return w;
+}
+
+static LJ_AINLINE char *serialize_wu124(char *w, uint32_t v)
+{
+  if (LJ_LIKELY(v < 0xe0)) {
+    *w++ = (char)v;
+    return w;
+  } else {
+    return serialize_wu124_(w, v);
+  }
+}
+
+static LJ_NOINLINE char *serialize_ru124_(char *r, char *w, uint32_t *pv)
+{
+  uint32_t v = *pv;
+  if (v != 0xff) {
+    if (r >= w) return NULL;
+    v = ((v & 0x1f) << 8) + *(uint8_t *)r + 0xe0; r++;
+  } else {
+    if (r + 4 > w) return NULL;
+    v = lj_getu32(r); r += 4;
+#if LJ_BE
+    v = lj_bswap(v);
+#endif
+  }
+  *pv = v;
+  return r;
+}
+
+static LJ_AINLINE char *serialize_ru124(char *r, char *w, uint32_t *pv)
+{
+  if (LJ_LIKELY(r < w)) {
+    uint32_t v = *(uint8_t *)r; r++;
+    *pv = v;
+    if (LJ_UNLIKELY(v >= 0xe0)) {
+      r = serialize_ru124_(r, w, pv);
+    }
+    return r;
+  }
+  return NULL;
+}
+
+/* Prepare string dictionary for use (once). */
+void LJ_FASTCALL lj_serialize_dict_prep_str(lua_State *L, GCtab *dict)
+{
+  if (!dict->hmask) {  /* No hash part means not prepared, yet. */
+    MSize i, len = lj_tab_len(dict);
+    if (!len) return;
+    lj_tab_resize(L, dict, dict->asize, hsize2hbits(len));
+    for (i = 1; i <= len && i < dict->asize; i++) {
+      cTValue *o = arrayslot(dict, i);
+      if (tvisstr(o)) {
+	if (!lj_tab_getstr(dict, strV(o))) {  /* Ignore dups. */
+	  lj_tab_newkey(L, dict, o)->u64 = (uint64_t)(i-1);
+	}
+      } else if (!tvisfalse(o)) {
+	lj_err_caller(L, LJ_ERR_BUFFER_BADOPT);
+      }
+    }
+  }
+}
+
+/* Prepare metatable dictionary for use (once). */
+void LJ_FASTCALL lj_serialize_dict_prep_mt(lua_State *L, GCtab *dict)
+{
+  if (!dict->hmask) {  /* No hash part means not prepared, yet. */
+    MSize i, len = lj_tab_len(dict);
+    if (!len) return;
+    lj_tab_resize(L, dict, dict->asize, hsize2hbits(len));
+    for (i = 1; i <= len && i < dict->asize; i++) {
+      cTValue *o = arrayslot(dict, i);
+      if (tvistab(o)) {
+	if (tvisnil(lj_tab_get(L, dict, o))) {  /* Ignore dups. */
+	  lj_tab_newkey(L, dict, o)->u64 = (uint64_t)(i-1);
+	}
+      } else if (!tvisfalse(o)) {
+	lj_err_caller(L, LJ_ERR_BUFFER_BADOPT);
+      }
+    }
+  }
+}
+
+/* -- Internal serializer ------------------------------------------------- */
+
+/* Put serialized object into buffer. */
+static char *serialize_put(char *w, SBufExt *sbx, cTValue *o)
+{
+  if (LJ_LIKELY(tvisstr(o))) {
+    const GCstr *str = strV(o);
+    MSize len = str->len;
+    w = serialize_more(w, sbx, 5+len);
+    w = serialize_wu124(w, SER_TAG_STR + len);
+    w = lj_buf_wmem(w, strdata(str), len);
+  } else if (tvisint(o)) {
+    uint32_t x = LJ_BE ? lj_bswap((uint32_t)intV(o)) : (uint32_t)intV(o);
+    w = serialize_more(w, sbx, 1+4);
+    *w++ = SER_TAG_INT; memcpy(w, &x, 4); w += 4;
+  } else if (tvisnum(o)) {
+    uint64_t x = LJ_BE ? lj_bswap64(o->u64) : o->u64;
+    w = serialize_more(w, sbx, 1+sizeof(lua_Number));
+    *w++ = SER_TAG_NUM; memcpy(w, &x, 8); w += 8;
+  } else if (tvispri(o)) {
+    w = serialize_more(w, sbx, 1);
+    *w++ = (char)(SER_TAG_NIL + ~itype(o));
+  } else if (tvistab(o)) {
+    const GCtab *t = tabV(o);
+    uint32_t narray = 0, nhash = 0, one = 2;
+    if (sbx->depth <= 0) lj_err_caller(sbufL(sbx), LJ_ERR_BUFFER_DEPTH);
+    sbx->depth--;
+    if (t->asize > 0) {  /* Determine max. length of array part. */
+      ptrdiff_t i;
+      TValue *array = tvref(t->array);
+      for (i = (ptrdiff_t)t->asize-1; i >= 0; i--)
+	if (!tvisnil(&array[i]))
+	  break;
+      narray = (uint32_t)(i+1);
+      if (narray && tvisnil(&array[0])) one = 4;
+    }
+    if (t->hmask > 0) {  /* Count number of used hash slots. */
+      uint32_t i, hmask = t->hmask;
+      Node *node = noderef(t->node);
+      for (i = 0; i <= hmask; i++)
+	nhash += !tvisnil(&node[i].val);
+    }
+    /* Write metatable index. */
+    if (LJ_UNLIKELY(tabref(sbx->dict_mt)) && tabref(t->metatable)) {
+      TValue mto;
+      Node *n;
+      settabV(sbufL(sbx), &mto, tabref(t->metatable));
+      n = hashgcref(tabref(sbx->dict_mt), mto.gcr);
+      do {
+	if (n->key.u64 == mto.u64) {
+	  uint32_t idx = n->val.u32.lo;
+	  w = serialize_more(w, sbx, 1+5);
+	  *w++ = SER_TAG_DICT_MT;
+	  w = serialize_wu124(w, idx);
+	  break;
+	}
+      } while ((n = nextnode(n)));
+    }
+    /* Write number of array slots and hash slots. */
+    w = serialize_more(w, sbx, 1+2*5);
+    *w++ = (char)(SER_TAG_TAB + (nhash ? 1 : 0) + (narray ? one : 0));
+    if (narray) w = serialize_wu124(w, narray);
+    if (nhash) w = serialize_wu124(w, nhash);
+    if (narray) {  /* Write array entries. */
+      cTValue *oa = tvref(t->array) + (one >> 2);
+      cTValue *oe = tvref(t->array) + narray;
+      while (oa < oe) w = serialize_put(w, sbx, oa++);
+    }
+    if (nhash) {  /* Write hash entries. */
+      const Node *node = noderef(t->node) + t->hmask;
+      GCtab *dict_str = tabref(sbx->dict_str);
+      if (LJ_UNLIKELY(dict_str)) {
+	for (;; node--)
+	  if (!tvisnil(&node->val)) {
+	    if (LJ_LIKELY(tvisstr(&node->key))) {
+	      /* Inlined lj_tab_getstr is 30% faster. */
+	      const GCstr *str = strV(&node->key);
+	      Node *n = hashstr(dict_str, str);
+	      do {
+		if (tvisstr(&n->key) && strV(&n->key) == str) {
+		  uint32_t idx = n->val.u32.lo;
+		  w = serialize_more(w, sbx, 1+5);
+		  *w++ = SER_TAG_DICT_STR;
+		  w = serialize_wu124(w, idx);
+		  break;
+		}
+		n = nextnode(n);
+		if (!n) {
+		  MSize len = str->len;
+		  w = serialize_more(w, sbx, 5+len);
+		  w = serialize_wu124(w, SER_TAG_STR + len);
+		  w = lj_buf_wmem(w, strdata(str), len);
+		  break;
+		}
+	      } while (1);
+	    } else {
+	      w = serialize_put(w, sbx, &node->key);
+	    }
+	    w = serialize_put(w, sbx, &node->val);
+	    if (--nhash == 0) break;
+	  }
+      } else {
+	for (;; node--)
+	  if (!tvisnil(&node->val)) {
+	    w = serialize_put(w, sbx, &node->key);
+	    w = serialize_put(w, sbx, &node->val);
+	    if (--nhash == 0) break;
+	  }
+      }
+    }
+    sbx->depth++;
+#if LJ_HASFFI
+  } else if (tviscdata(o)) {
+    CTState *cts = ctype_cts(sbufL(sbx));
+    CType *s = ctype_raw(cts, cdataV(o)->ctypeid);
+    uint8_t *sp = cdataptr(cdataV(o));
+    if (ctype_isinteger(s->info) && s->size == 8) {
+      w = serialize_more(w, sbx, 1+8);
+      *w++ = (s->info & CTF_UNSIGNED) ? SER_TAG_UINT64 : SER_TAG_INT64;
+#if LJ_BE
+      { uint64_t u = lj_bswap64(*(uint64_t *)sp); memcpy(w, &u, 8); }
+#else
+      memcpy(w, sp, 8);
+#endif
+      w += 8;
+    } else if (ctype_iscomplex(s->info) && s->size == 16) {
+      w = serialize_more(w, sbx, 1+16);
+      *w++ = SER_TAG_COMPLEX;
+#if LJ_BE
+      {  /* Only swap the doubles. The re/im order stays the same. */
+	uint64_t u = lj_bswap64(((uint64_t *)sp)[0]); memcpy(w, &u, 8);
+	u = lj_bswap64(((uint64_t *)sp)[1]); memcpy(w+8, &u, 8);
+      }
+#else
+      memcpy(w, sp, 16);
+#endif
+      w += 16;
+    } else {
+      goto badenc;  /* NYI other cdata */
+    }
+#endif
+  } else if (tvislightud(o)) {
+    uintptr_t ud = (uintptr_t)lightudV(G(sbufL(sbx)), o);
+    w = serialize_more(w, sbx, 1+sizeof(ud));
+    if (ud == 0) {
+      *w++ = SER_TAG_NULL;
+    } else if (LJ_32 || checku32(ud)) {
+#if LJ_BE && LJ_64
+      ud = lj_bswap64(ud);
+#elif LJ_BE
+      ud = lj_bswap(ud);
+#endif
+      *w++ = SER_TAG_LIGHTUD32; memcpy(w, &ud, 4); w += 4;
+#if LJ_64
+    } else {
+#if LJ_BE
+      ud = lj_bswap64(ud);
+#endif
+      *w++ = SER_TAG_LIGHTUD64; memcpy(w, &ud, 8); w += 8;
+#endif
+    }
+  } else {
+    /* NYI userdata */
+#if LJ_HASFFI
+  badenc:
+#endif
+    lj_err_callerv(sbufL(sbx), LJ_ERR_BUFFER_BADENC, lj_typename(o));
+  }
+  return w;
+}
+
+/* Get serialized object from buffer. */
+static char *serialize_get(char *r, SBufExt *sbx, TValue *o)
+{
+  char *w = sbx->w;
+  uint32_t tp;
+  r = serialize_ru124(r, w, &tp); if (LJ_UNLIKELY(!r)) goto eob;
+  if (LJ_LIKELY(tp >= SER_TAG_STR)) {
+    uint32_t len = tp - SER_TAG_STR;
+    if (LJ_UNLIKELY(len > (uint32_t)(w - r))) goto eob;
+    setstrV(sbufL(sbx), o, lj_str_new(sbufL(sbx), r, len));
+    r += len;
+  } else if (tp == SER_TAG_INT) {
+    if (LJ_UNLIKELY(r + 4 > w)) goto eob;
+    setintV(o, (int32_t)(LJ_BE ? lj_bswap(lj_getu32(r)) : lj_getu32(r)));
+    r += 4;
+  } else if (tp == SER_TAG_NUM) {
+    if (LJ_UNLIKELY(r + 8 > w)) goto eob;
+    memcpy(o, r, 8); r += 8;
+#if LJ_BE
+    o->u64 = lj_bswap64(o->u64);
+#endif
+    if (!tvisnum(o)) setnanV(o);  /* Fix non-canonical NaNs. */
+  } else if (tp <= SER_TAG_TRUE) {
+    setpriV(o, ~tp);
+  } else if (tp == SER_TAG_DICT_STR) {
+    GCtab *dict_str;
+    uint32_t idx;
+    r = serialize_ru124(r, w, &idx); if (LJ_UNLIKELY(!r)) goto eob;
+    idx++;
+    dict_str = tabref(sbx->dict_str);
+    if (dict_str && idx < dict_str->asize && tvisstr(arrayslot(dict_str, idx)))
+      copyTV(sbufL(sbx), o, arrayslot(dict_str, idx));
+    else
+      lj_err_callerv(sbufL(sbx), LJ_ERR_BUFFER_BADDICTX, idx);
+  } else if (tp >= SER_TAG_TAB && tp <= SER_TAG_DICT_MT) {
+    uint32_t narray = 0, nhash = 0;
+    GCtab *t, *mt = NULL;
+    if (sbx->depth <= 0) lj_err_caller(sbufL(sbx), LJ_ERR_BUFFER_DEPTH);
+    sbx->depth--;
+    if (tp == SER_TAG_DICT_MT) {
+      GCtab *dict_mt;
+      uint32_t idx;
+      r = serialize_ru124(r, w, &idx); if (LJ_UNLIKELY(!r)) goto eob;
+      idx++;
+      dict_mt = tabref(sbx->dict_mt);
+      if (dict_mt && idx < dict_mt->asize && tvistab(arrayslot(dict_mt, idx)))
+	mt = tabV(arrayslot(dict_mt, idx));
+      else
+	lj_err_callerv(sbufL(sbx), LJ_ERR_BUFFER_BADDICTX, idx);
+      r = serialize_ru124(r, w, &tp); if (LJ_UNLIKELY(!r)) goto eob;
+      if (!(tp >= SER_TAG_TAB && tp < SER_TAG_DICT_MT)) goto badtag;
+    }
+    if (tp >= SER_TAG_TAB+2) {
+      r = serialize_ru124(r, w, &narray); if (LJ_UNLIKELY(!r)) goto eob;
+    }
+    if ((tp & 1)) {
+      r = serialize_ru124(r, w, &nhash); if (LJ_UNLIKELY(!r)) goto eob;
+    }
+    t = lj_tab_new(sbufL(sbx), narray, hsize2hbits(nhash));
+    /* NOBARRIER: The table is new (marked white). */
+    setgcref(t->metatable, obj2gco(mt));
+    settabV(sbufL(sbx), o, t);
+    if (narray) {
+      TValue *oa = tvref(t->array) + (tp >= SER_TAG_TAB+4);
+      TValue *oe = tvref(t->array) + narray;
+      while (oa < oe) r = serialize_get(r, sbx, oa++);
+    }
+    if (nhash) {
+      do {
+	TValue k, *v;
+	r = serialize_get(r, sbx, &k);
+	v = lj_tab_set(sbufL(sbx), t, &k);
+	if (LJ_UNLIKELY(!tvisnil(v)))
+	  lj_err_caller(sbufL(sbx), LJ_ERR_BUFFER_DUPKEY);
+	r = serialize_get(r, sbx, v);
+      } while (--nhash);
+    }
+    sbx->depth++;
+#if LJ_HASFFI
+  } else if (tp >= SER_TAG_INT64 &&  tp <= SER_TAG_COMPLEX) {
+    uint32_t sz = tp == SER_TAG_COMPLEX ? 16 : 8;
+    GCcdata *cd;
+    if (LJ_UNLIKELY(r + sz > w)) goto eob;
+    if (LJ_UNLIKELY(!ctype_ctsG(G(sbufL(sbx))))) goto badtag;
+    cd = lj_cdata_new_(sbufL(sbx),
+	   tp == SER_TAG_INT64 ? CTID_INT64 :
+	   tp == SER_TAG_UINT64 ? CTID_UINT64 : CTID_COMPLEX_DOUBLE,
+	   sz);
+    memcpy(cdataptr(cd), r, sz); r += sz;
+#if LJ_BE
+    *(uint64_t *)cdataptr(cd) = lj_bswap64(*(uint64_t *)cdataptr(cd));
+    if (sz == 16)
+      ((uint64_t *)cdataptr(cd))[1] = lj_bswap64(((uint64_t *)cdataptr(cd))[1]);
+#endif
+    if (sz == 16) {  /* Fix non-canonical NaNs. */
+      TValue *cdo = (TValue *)cdataptr(cd);
+      if (!tvisnum(&cdo[0])) setnanV(&cdo[0]);
+      if (!tvisnum(&cdo[1])) setnanV(&cdo[1]);
+    }
+    setcdataV(sbufL(sbx), o, cd);
+#endif
+  } else if (tp <= (LJ_64 ? SER_TAG_LIGHTUD64 : SER_TAG_LIGHTUD32)) {
+    uintptr_t ud = 0;
+    if (tp == SER_TAG_LIGHTUD32) {
+      if (LJ_UNLIKELY(r + 4 > w)) goto eob;
+      ud = (uintptr_t)(LJ_BE ? lj_bswap(lj_getu32(r)) : lj_getu32(r));
+      r += 4;
+    }
+#if LJ_64
+    else if (tp == SER_TAG_LIGHTUD64) {
+      if (LJ_UNLIKELY(r + 8 > w)) goto eob;
+      memcpy(&ud, r, 8); r += 8;
+#if LJ_BE
+      ud = lj_bswap64(ud);
+#endif
+    }
+    setrawlightudV(o, lj_lightud_intern(sbufL(sbx), (void *)ud));
+#else
+    setrawlightudV(o, (void *)ud);
+#endif
+  } else {
+badtag:
+    lj_err_callerv(sbufL(sbx), LJ_ERR_BUFFER_BADDEC, tp);
+  }
+  return r;
+eob:
+  lj_err_caller(sbufL(sbx), LJ_ERR_BUFFER_EOB);
+  return NULL;
+}
+
+/* -- External serialization API ------------------------------------------ */
+
+/* Encode to buffer. */
+SBufExt * LJ_FASTCALL lj_serialize_put(SBufExt *sbx, cTValue *o)
+{
+  sbx->depth = LJ_SERIALIZE_DEPTH;
+  sbx->w = serialize_put(sbx->w, sbx, o);
+  return sbx;
+}
+
+/* Decode from buffer. */
+char * LJ_FASTCALL lj_serialize_get(SBufExt *sbx, TValue *o)
+{
+  sbx->depth = LJ_SERIALIZE_DEPTH;
+  return serialize_get(sbx->r, sbx, o);
+}
+
+/* Stand-alone encoding, borrowing from global temporary buffer. */
+GCstr * LJ_FASTCALL lj_serialize_encode(lua_State *L, cTValue *o)
+{
+  SBufExt sbx;
+  char *w;
+  memset(&sbx, 0, sizeof(SBufExt));
+  lj_bufx_set_borrow(L, &sbx, &G(L)->tmpbuf);
+  sbx.depth = LJ_SERIALIZE_DEPTH;
+  w = serialize_put(sbx.w, &sbx, o);
+  return lj_str_new(L, sbx.b, (size_t)(w - sbx.b));
+}
+
+/* Stand-alone decoding, copy-on-write from string. */
+void lj_serialize_decode(lua_State *L, TValue *o, GCstr *str)
+{
+  SBufExt sbx;
+  char *r;
+  memset(&sbx, 0, sizeof(SBufExt));
+  lj_bufx_set_cow(L, &sbx, strdata(str), str->len);
+  /* No need to set sbx.cowref here. */
+  sbx.depth = LJ_SERIALIZE_DEPTH;
+  r = serialize_get(sbx.r, &sbx, o);
+  if (r != sbx.w) lj_err_caller(L, LJ_ERR_BUFFER_LEFTOV);
+}
+
+#if LJ_HASJIT
+/* Peek into buffer to find the result IRType for specialization purposes. */
+LJ_FUNC MSize LJ_FASTCALL lj_serialize_peektype(SBufExt *sbx)
+{
+  uint32_t tp;
+  if (serialize_ru124(sbx->r, sbx->w, &tp)) {
+    /* This must match the handling of all tags in the decoder above. */
+    switch (tp) {
+    case SER_TAG_NIL: return IRT_NIL;
+    case SER_TAG_FALSE: return IRT_FALSE;
+    case SER_TAG_TRUE: return IRT_TRUE;
+    case SER_TAG_NULL: case SER_TAG_LIGHTUD32: case SER_TAG_LIGHTUD64:
+      return IRT_LIGHTUD;
+    case SER_TAG_INT: return LJ_DUALNUM ? IRT_INT : IRT_NUM;
+    case SER_TAG_NUM: return IRT_NUM;
+    case SER_TAG_TAB: case SER_TAG_TAB+1: case SER_TAG_TAB+2:
+    case SER_TAG_TAB+3: case SER_TAG_TAB+4: case SER_TAG_TAB+5:
+    case SER_TAG_DICT_MT:
+      return IRT_TAB;
+    case SER_TAG_INT64: case SER_TAG_UINT64: case SER_TAG_COMPLEX:
+      return IRT_CDATA;
+    case SER_TAG_DICT_STR:
+    default:
+      return IRT_STR;
+    }
+  }
+  return IRT_NIL;  /* Will fail on actual decode. */
+}
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_serialize.h b/libs/luajit-cmake/luajit/src/lj_serialize.h
new file mode 100644
index 0000000..d3f4275
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_serialize.h
@@ -0,0 +1,28 @@
+/*
+** Object de/serialization.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_SERIALIZE_H
+#define _LJ_SERIALIZE_H
+
+#include "lj_obj.h"
+#include "lj_buf.h"
+
+#if LJ_HASBUFFER
+
+#define LJ_SERIALIZE_DEPTH	100	/* Default depth. */
+
+LJ_FUNC void LJ_FASTCALL lj_serialize_dict_prep_str(lua_State *L, GCtab *dict);
+LJ_FUNC void LJ_FASTCALL lj_serialize_dict_prep_mt(lua_State *L, GCtab *dict);
+LJ_FUNC SBufExt * LJ_FASTCALL lj_serialize_put(SBufExt *sbx, cTValue *o);
+LJ_FUNC char * LJ_FASTCALL lj_serialize_get(SBufExt *sbx, TValue *o);
+LJ_FUNC GCstr * LJ_FASTCALL lj_serialize_encode(lua_State *L, cTValue *o);
+LJ_FUNC void lj_serialize_decode(lua_State *L, TValue *o, GCstr *str);
+#if LJ_HASJIT
+LJ_FUNC MSize LJ_FASTCALL lj_serialize_peektype(SBufExt *sbx);
+#endif
+
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_snap.c b/libs/luajit-cmake/luajit/src/lj_snap.c
new file mode 100644
index 0000000..4140fdb
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_snap.c
@@ -0,0 +1,996 @@
+/*
+** Snapshot handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_snap_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_gc.h"
+#include "lj_tab.h"
+#include "lj_state.h"
+#include "lj_frame.h"
+#include "lj_bc.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_iropt.h"
+#include "lj_trace.h"
+#include "lj_snap.h"
+#include "lj_target.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_cdata.h"
+#endif
+
+/* Pass IR on to next optimization in chain (FOLD). */
+#define emitir(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_opt_fold(J))
+
+/* Emit raw IR without passing through optimizations. */
+#define emitir_raw(ot, a, b)	(lj_ir_set(J, (ot), (a), (b)), lj_ir_emit(J))
+
+/* -- Snapshot buffer allocation ------------------------------------------ */
+
+/* Grow snapshot buffer. */
+void lj_snap_grow_buf_(jit_State *J, MSize need)
+{
+  MSize maxsnap = (MSize)J->param[JIT_P_maxsnap];
+  if (need > maxsnap)
+    lj_trace_err(J, LJ_TRERR_SNAPOV);
+  lj_mem_growvec(J->L, J->snapbuf, J->sizesnap, maxsnap, SnapShot);
+  J->cur.snap = J->snapbuf;
+}
+
+/* Grow snapshot map buffer. */
+void lj_snap_grow_map_(jit_State *J, MSize need)
+{
+  if (need < 2*J->sizesnapmap)
+    need = 2*J->sizesnapmap;
+  else if (need < 64)
+    need = 64;
+  J->snapmapbuf = (SnapEntry *)lj_mem_realloc(J->L, J->snapmapbuf,
+		    J->sizesnapmap*sizeof(SnapEntry), need*sizeof(SnapEntry));
+  J->cur.snapmap = J->snapmapbuf;
+  J->sizesnapmap = need;
+}
+
+/* -- Snapshot generation ------------------------------------------------- */
+
+/* Add all modified slots to the snapshot. */
+static MSize snapshot_slots(jit_State *J, SnapEntry *map, BCReg nslots)
+{
+  IRRef retf = J->chain[IR_RETF];  /* Limits SLOAD restore elimination. */
+  BCReg s;
+  MSize n = 0;
+  for (s = 0; s < nslots; s++) {
+    TRef tr = J->slot[s];
+    IRRef ref = tref_ref(tr);
+#if LJ_FR2
+    if (s == 1) {  /* Ignore slot 1 in LJ_FR2 mode, except if tailcalled. */
+      if ((tr & TREF_FRAME))
+	map[n++] = SNAP(1, SNAP_FRAME | SNAP_NORESTORE, REF_NIL);
+      continue;
+    }
+    if ((tr & (TREF_FRAME | TREF_CONT)) && !ref) {
+      cTValue *base = J->L->base - J->baseslot;
+      tr = J->slot[s] = (tr & 0xff0000) | lj_ir_k64(J, IR_KNUM, base[s].u64);
+      ref = tref_ref(tr);
+    }
+#endif
+    if (ref) {
+      SnapEntry sn = SNAP_TR(s, tr);
+      IRIns *ir = &J->cur.ir[ref];
+      if ((LJ_FR2 || !(sn & (SNAP_CONT|SNAP_FRAME))) &&
+	  ir->o == IR_SLOAD && ir->op1 == s && ref > retf) {
+	/*
+	** No need to snapshot unmodified non-inherited slots.
+	** But always snapshot the function below a frame in LJ_FR2 mode.
+	*/
+	if (!(ir->op2 & IRSLOAD_INHERIT) &&
+	    (!LJ_FR2 || s == 0 || s+1 == nslots ||
+	     !(J->slot[s+1] & (TREF_CONT|TREF_FRAME))))
+	  continue;
+	/* No need to restore readonly slots and unmodified non-parent slots. */
+	if (!(LJ_DUALNUM && (ir->op2 & IRSLOAD_CONVERT)) &&
+	    (ir->op2 & (IRSLOAD_READONLY|IRSLOAD_PARENT)) != IRSLOAD_PARENT)
+	  sn |= SNAP_NORESTORE;
+      }
+      if (LJ_SOFTFP32 && irt_isnum(ir->t))
+	sn |= SNAP_SOFTFPNUM;
+      map[n++] = sn;
+    }
+  }
+  return n;
+}
+
+/* Add frame links at the end of the snapshot. */
+static MSize snapshot_framelinks(jit_State *J, SnapEntry *map, uint8_t *topslot)
+{
+  cTValue *frame = J->L->base - 1;
+  cTValue *lim = J->L->base - J->baseslot + LJ_FR2;
+  GCfunc *fn = frame_func(frame);
+  cTValue *ftop = isluafunc(fn) ? (frame+funcproto(fn)->framesize) : J->L->top;
+#if LJ_FR2
+  uint64_t pcbase = (u64ptr(J->pc) << 8) | (J->baseslot - 2);
+  lj_assertJ(2 <= J->baseslot && J->baseslot <= 257, "bad baseslot");
+  memcpy(map, &pcbase, sizeof(uint64_t));
+#else
+  MSize f = 0;
+  map[f++] = SNAP_MKPC(J->pc);  /* The current PC is always the first entry. */
+#endif
+  lj_assertJ(!J->pt ||
+	     (J->pc >= proto_bc(J->pt) &&
+	      J->pc < proto_bc(J->pt) + J->pt->sizebc), "bad snapshot PC");
+  while (frame > lim) {  /* Backwards traversal of all frames above base. */
+    if (frame_islua(frame)) {
+#if !LJ_FR2
+      map[f++] = SNAP_MKPC(frame_pc(frame));
+#endif
+      frame = frame_prevl(frame);
+    } else if (frame_iscont(frame)) {
+#if !LJ_FR2
+      map[f++] = SNAP_MKFTSZ(frame_ftsz(frame));
+      map[f++] = SNAP_MKPC(frame_contpc(frame));
+#endif
+      frame = frame_prevd(frame);
+    } else {
+      lj_assertJ(!frame_isc(frame), "broken frame chain");
+#if !LJ_FR2
+      map[f++] = SNAP_MKFTSZ(frame_ftsz(frame));
+#endif
+      frame = frame_prevd(frame);
+      continue;
+    }
+    if (frame + funcproto(frame_func(frame))->framesize > ftop)
+      ftop = frame + funcproto(frame_func(frame))->framesize;
+  }
+  *topslot = (uint8_t)(ftop - lim);
+#if LJ_FR2
+  lj_assertJ(sizeof(SnapEntry) * 2 == sizeof(uint64_t), "bad SnapEntry def");
+  return 2;
+#else
+  lj_assertJ(f == (MSize)(1 + J->framedepth), "miscalculated snapshot size");
+  return f;
+#endif
+}
+
+/* Take a snapshot of the current stack. */
+static void snapshot_stack(jit_State *J, SnapShot *snap, MSize nsnapmap)
+{
+  BCReg nslots = J->baseslot + J->maxslot;
+  MSize nent;
+  SnapEntry *p;
+  /* Conservative estimate. */
+  lj_snap_grow_map(J, nsnapmap + nslots + (MSize)(LJ_FR2?2:J->framedepth+1));
+  p = &J->cur.snapmap[nsnapmap];
+  nent = snapshot_slots(J, p, nslots);
+  snap->nent = (uint8_t)nent;
+  nent += snapshot_framelinks(J, p + nent, &snap->topslot);
+  snap->mapofs = (uint32_t)nsnapmap;
+  snap->ref = (IRRef1)J->cur.nins;
+  snap->mcofs = 0;
+  snap->nslots = (uint8_t)nslots;
+  snap->count = 0;
+  J->cur.nsnapmap = (uint32_t)(nsnapmap + nent);
+}
+
+/* Add or merge a snapshot. */
+void lj_snap_add(jit_State *J)
+{
+  MSize nsnap = J->cur.nsnap;
+  MSize nsnapmap = J->cur.nsnapmap;
+  /* Merge if no ins. inbetween or if requested and no guard inbetween. */
+  if ((nsnap > 0 && J->cur.snap[nsnap-1].ref == J->cur.nins) ||
+      (J->mergesnap && !irt_isguard(J->guardemit))) {
+    if (nsnap == 1) {  /* But preserve snap #0 PC. */
+      emitir_raw(IRT(IR_NOP, IRT_NIL), 0, 0);
+      goto nomerge;
+    }
+    nsnapmap = J->cur.snap[--nsnap].mapofs;
+  } else {
+  nomerge:
+    lj_snap_grow_buf(J, nsnap+1);
+    J->cur.nsnap = (uint16_t)(nsnap+1);
+  }
+  J->mergesnap = 0;
+  J->guardemit.irt = 0;
+  snapshot_stack(J, &J->cur.snap[nsnap], nsnapmap);
+}
+
+/* -- Snapshot modification ----------------------------------------------- */
+
+#define SNAP_USEDEF_SLOTS	(LJ_MAX_JSLOTS+LJ_STACK_EXTRA)
+
+/* Find unused slots with reaching-definitions bytecode data-flow analysis. */
+static BCReg snap_usedef(jit_State *J, uint8_t *udf,
+			 const BCIns *pc, BCReg maxslot)
+{
+  BCReg s;
+  GCobj *o;
+
+  if (maxslot == 0) return 0;
+#ifdef LUAJIT_USE_VALGRIND
+  /* Avoid errors for harmless reads beyond maxslot. */
+  memset(udf, 1, SNAP_USEDEF_SLOTS);
+#else
+  memset(udf, 1, maxslot);
+#endif
+
+  /* Treat open upvalues as used. */
+  o = gcref(J->L->openupval);
+  while (o) {
+    if (uvval(gco2uv(o)) < J->L->base) break;
+    udf[uvval(gco2uv(o)) - J->L->base] = 0;
+    o = gcref(o->gch.nextgc);
+  }
+
+#define USE_SLOT(s)		udf[(s)] &= ~1
+#define DEF_SLOT(s)		udf[(s)] *= 3
+
+  /* Scan through following bytecode and check for uses/defs. */
+  lj_assertJ(pc >= proto_bc(J->pt) && pc < proto_bc(J->pt) + J->pt->sizebc,
+	     "snapshot PC out of range");
+  for (;;) {
+    BCIns ins = *pc++;
+    BCOp op = bc_op(ins);
+    switch (bcmode_b(op)) {
+    case BCMvar: USE_SLOT(bc_b(ins)); break;
+    default: break;
+    }
+    switch (bcmode_c(op)) {
+    case BCMvar: USE_SLOT(bc_c(ins)); break;
+    case BCMrbase:
+      lj_assertJ(op == BC_CAT, "unhandled op %d with RC rbase", op);
+      for (s = bc_b(ins); s <= bc_c(ins); s++) USE_SLOT(s);
+      for (; s < maxslot; s++) DEF_SLOT(s);
+      break;
+    case BCMjump:
+    handle_jump: {
+      BCReg minslot = bc_a(ins);
+      if (op >= BC_FORI && op <= BC_JFORL) minslot += FORL_EXT;
+      else if (op >= BC_ITERL && op <= BC_JITERL) minslot += bc_b(pc[-2])-1;
+      else if (op == BC_UCLO) {
+	ptrdiff_t delta = bc_j(ins);
+	if (delta < 0) return maxslot;  /* Prevent loop. */
+	pc += delta;
+	break;
+      }
+      for (s = minslot; s < maxslot; s++) DEF_SLOT(s);
+      return minslot < maxslot ? minslot : maxslot;
+      }
+    case BCMlit:
+      if (op == BC_JFORL || op == BC_JITERL || op == BC_JLOOP) {
+	goto handle_jump;
+      } else if (bc_isret(op)) {
+	BCReg top = op == BC_RETM ? maxslot : (bc_a(ins) + bc_d(ins)-1);
+	for (s = 0; s < bc_a(ins); s++) DEF_SLOT(s);
+	for (; s < top; s++) USE_SLOT(s);
+	for (; s < maxslot; s++) DEF_SLOT(s);
+	return 0;
+      }
+      break;
+    case BCMfunc: return maxslot;  /* NYI: will abort, anyway. */
+    default: break;
+    }
+    switch (bcmode_a(op)) {
+    case BCMvar: USE_SLOT(bc_a(ins)); break;
+    case BCMdst:
+       if (!(op == BC_ISTC || op == BC_ISFC)) DEF_SLOT(bc_a(ins));
+       break;
+    case BCMbase:
+      if (op >= BC_CALLM && op <= BC_ITERN) {
+	BCReg top = (op == BC_CALLM || op == BC_CALLMT || bc_c(ins) == 0) ?
+		    maxslot : (bc_a(ins) + bc_c(ins)+LJ_FR2);
+	if (LJ_FR2) DEF_SLOT(bc_a(ins)+1);
+	s = bc_a(ins) - ((op == BC_ITERC || op == BC_ITERN) ? 3 : 0);
+	for (; s < top; s++) USE_SLOT(s);
+	for (; s < maxslot; s++) DEF_SLOT(s);
+	if (op == BC_CALLT || op == BC_CALLMT) {
+	  for (s = 0; s < bc_a(ins); s++) DEF_SLOT(s);
+	  return 0;
+	}
+      } else if (op == BC_VARG) {
+	return maxslot;  /* NYI: punt. */
+      } else if (op == BC_KNIL) {
+	for (s = bc_a(ins); s <= bc_d(ins); s++) DEF_SLOT(s);
+      } else if (op == BC_TSETM) {
+	for (s = bc_a(ins)-1; s < maxslot; s++) USE_SLOT(s);
+      }
+      break;
+    default: break;
+    }
+    lj_assertJ(pc >= proto_bc(J->pt) && pc < proto_bc(J->pt) + J->pt->sizebc,
+	       "use/def analysis PC out of range");
+  }
+
+#undef USE_SLOT
+#undef DEF_SLOT
+
+  return 0;  /* unreachable */
+}
+
+/* Mark slots used by upvalues of child prototypes as used. */
+static void snap_useuv(GCproto *pt, uint8_t *udf)
+{
+  /* This is a coarse check, because it's difficult to correlate the lifetime
+  ** of slots and closures. But the number of false positives is quite low.
+  ** A false positive may cause a slot not to be purged, which is just
+  ** a missed optimization.
+  */
+  if ((pt->flags & PROTO_CHILD)) {
+    ptrdiff_t i, j, n = pt->sizekgc;
+    GCRef *kr = mref(pt->k, GCRef) - 1;
+    for (i = 0; i < n; i++, kr--) {
+      GCobj *o = gcref(*kr);
+      if (o->gch.gct == ~LJ_TPROTO) {
+	for (j = 0; j < gco2pt(o)->sizeuv; j++) {
+	  uint32_t v = proto_uv(gco2pt(o))[j];
+	  if ((v & PROTO_UV_LOCAL)) {
+	    udf[(v & 0xff)] = 0;
+	  }
+	}
+      }
+    }
+  }
+}
+
+/* Purge dead slots before the next snapshot. */
+void lj_snap_purge(jit_State *J)
+{
+  uint8_t udf[SNAP_USEDEF_SLOTS];
+  BCReg s, maxslot = J->maxslot;
+  if (bc_op(*J->pc) == BC_FUNCV && maxslot > J->pt->numparams)
+    maxslot = J->pt->numparams;
+  s = snap_usedef(J, udf, J->pc, maxslot);
+  if (s < maxslot) {
+    snap_useuv(J->pt, udf);
+    for (; s < maxslot; s++)
+      if (udf[s] != 0)
+	J->base[s] = 0;  /* Purge dead slots. */
+  }
+}
+
+/* Shrink last snapshot. */
+void lj_snap_shrink(jit_State *J)
+{
+  SnapShot *snap = &J->cur.snap[J->cur.nsnap-1];
+  SnapEntry *map = &J->cur.snapmap[snap->mapofs];
+  MSize n, m, nlim, nent = snap->nent;
+  uint8_t udf[SNAP_USEDEF_SLOTS];
+  BCReg maxslot = J->maxslot;
+  BCReg baseslot = J->baseslot;
+  BCReg minslot = snap_usedef(J, udf, snap_pc(&map[nent]), maxslot);
+  if (minslot < maxslot) snap_useuv(J->pt, udf);
+  maxslot += baseslot;
+  minslot += baseslot;
+  snap->nslots = (uint8_t)maxslot;
+  for (n = m = 0; n < nent; n++) {  /* Remove unused slots from snapshot. */
+    BCReg s = snap_slot(map[n]);
+    if (s < minslot || (s < maxslot && udf[s-baseslot] == 0))
+      map[m++] = map[n];  /* Only copy used slots. */
+  }
+  snap->nent = (uint8_t)m;
+  nlim = J->cur.nsnapmap - snap->mapofs - 1;
+  while (n <= nlim) map[m++] = map[n++];  /* Move PC + frame links down. */
+  J->cur.nsnapmap = (uint32_t)(snap->mapofs + m);  /* Free up space in map. */
+}
+
+/* -- Snapshot access ----------------------------------------------------- */
+
+/* Initialize a Bloom Filter with all renamed refs.
+** There are very few renames (often none), so the filter has
+** very few bits set. This makes it suitable for negative filtering.
+*/
+static BloomFilter snap_renamefilter(GCtrace *T, SnapNo lim)
+{
+  BloomFilter rfilt = 0;
+  IRIns *ir;
+  for (ir = &T->ir[T->nins-1]; ir->o == IR_RENAME; ir--)
+    if (ir->op2 <= lim)
+      bloomset(rfilt, ir->op1);
+  return rfilt;
+}
+
+/* Process matching renames to find the original RegSP. */
+static RegSP snap_renameref(GCtrace *T, SnapNo lim, IRRef ref, RegSP rs)
+{
+  IRIns *ir;
+  for (ir = &T->ir[T->nins-1]; ir->o == IR_RENAME; ir--)
+    if (ir->op1 == ref && ir->op2 <= lim)
+      rs = ir->prev;
+  return rs;
+}
+
+/* Copy RegSP from parent snapshot to the parent links of the IR. */
+IRIns *lj_snap_regspmap(jit_State *J, GCtrace *T, SnapNo snapno, IRIns *ir)
+{
+  SnapShot *snap = &T->snap[snapno];
+  SnapEntry *map = &T->snapmap[snap->mapofs];
+  BloomFilter rfilt = snap_renamefilter(T, snapno);
+  MSize n = 0;
+  IRRef ref = 0;
+  UNUSED(J);
+  for ( ; ; ir++) {
+    uint32_t rs;
+    if (ir->o == IR_SLOAD) {
+      if (!(ir->op2 & IRSLOAD_PARENT)) break;
+      for ( ; ; n++) {
+	lj_assertJ(n < snap->nent, "slot %d not found in snapshot", ir->op1);
+	if (snap_slot(map[n]) == ir->op1) {
+	  ref = snap_ref(map[n++]);
+	  break;
+	}
+      }
+    } else if (LJ_SOFTFP32 && ir->o == IR_HIOP) {
+      ref++;
+    } else if (ir->o == IR_PVAL) {
+      ref = ir->op1 + REF_BIAS;
+    } else {
+      break;
+    }
+    rs = T->ir[ref].prev;
+    if (bloomtest(rfilt, ref))
+      rs = snap_renameref(T, snapno, ref, rs);
+    ir->prev = (uint16_t)rs;
+    lj_assertJ(regsp_used(rs), "unused IR %04d in snapshot", ref - REF_BIAS);
+  }
+  return ir;
+}
+
+/* -- Snapshot replay ----------------------------------------------------- */
+
+/* Replay constant from parent trace. */
+static TRef snap_replay_const(jit_State *J, IRIns *ir)
+{
+  /* Only have to deal with constants that can occur in stack slots. */
+  switch ((IROp)ir->o) {
+  case IR_KPRI: return TREF_PRI(irt_type(ir->t));
+  case IR_KINT: return lj_ir_kint(J, ir->i);
+  case IR_KGC: return lj_ir_kgc(J, ir_kgc(ir), irt_t(ir->t));
+  case IR_KNUM: case IR_KINT64:
+    return lj_ir_k64(J, (IROp)ir->o, ir_k64(ir)->u64);
+  case IR_KPTR: return lj_ir_kptr(J, ir_kptr(ir));  /* Continuation. */
+  default: lj_assertJ(0, "bad IR constant op %d", ir->o); return TREF_NIL;
+  }
+}
+
+/* De-duplicate parent reference. */
+static TRef snap_dedup(jit_State *J, SnapEntry *map, MSize nmax, IRRef ref)
+{
+  MSize j;
+  for (j = 0; j < nmax; j++)
+    if (snap_ref(map[j]) == ref)
+      return J->slot[snap_slot(map[j])] & ~(SNAP_KEYINDEX|SNAP_CONT|SNAP_FRAME);
+  return 0;
+}
+
+/* Emit parent reference with de-duplication. */
+static TRef snap_pref(jit_State *J, GCtrace *T, SnapEntry *map, MSize nmax,
+		      BloomFilter seen, IRRef ref)
+{
+  IRIns *ir = &T->ir[ref];
+  TRef tr;
+  if (irref_isk(ref))
+    tr = snap_replay_const(J, ir);
+  else if (!regsp_used(ir->prev))
+    tr = 0;
+  else if (!bloomtest(seen, ref) || (tr = snap_dedup(J, map, nmax, ref)) == 0)
+    tr = emitir(IRT(IR_PVAL, irt_type(ir->t)), ref - REF_BIAS, 0);
+  return tr;
+}
+
+/* Check whether a sunk store corresponds to an allocation. Slow path. */
+static int snap_sunk_store2(GCtrace *T, IRIns *ira, IRIns *irs)
+{
+  if (irs->o == IR_ASTORE || irs->o == IR_HSTORE ||
+      irs->o == IR_FSTORE || irs->o == IR_XSTORE) {
+    IRIns *irk = &T->ir[irs->op1];
+    if (irk->o == IR_AREF || irk->o == IR_HREFK)
+      irk = &T->ir[irk->op1];
+    return (&T->ir[irk->op1] == ira);
+  }
+  return 0;
+}
+
+/* Check whether a sunk store corresponds to an allocation. Fast path. */
+static LJ_AINLINE int snap_sunk_store(GCtrace *T, IRIns *ira, IRIns *irs)
+{
+  if (irs->s != 255)
+    return (ira + irs->s == irs);  /* Fast check. */
+  return snap_sunk_store2(T, ira, irs);
+}
+
+/* Replay snapshot state to setup side trace. */
+void lj_snap_replay(jit_State *J, GCtrace *T)
+{
+  SnapShot *snap = &T->snap[J->exitno];
+  SnapEntry *map = &T->snapmap[snap->mapofs];
+  MSize n, nent = snap->nent;
+  BloomFilter seen = 0;
+  int pass23 = 0;
+  J->framedepth = 0;
+  /* Emit IR for slots inherited from parent snapshot. */
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    BCReg s = snap_slot(sn);
+    IRRef ref = snap_ref(sn);
+    IRIns *ir = &T->ir[ref];
+    TRef tr;
+    /* The bloom filter avoids O(nent^2) overhead for de-duping slots. */
+    if (bloomtest(seen, ref) && (tr = snap_dedup(J, map, n, ref)) != 0)
+      goto setslot;
+    bloomset(seen, ref);
+    if (irref_isk(ref)) {
+      /* See special treatment of LJ_FR2 slot 1 in snapshot_slots() above. */
+      if (LJ_FR2 && (sn == SNAP(1, SNAP_FRAME | SNAP_NORESTORE, REF_NIL)))
+	tr = 0;
+      else
+	tr = snap_replay_const(J, ir);
+    } else if (!regsp_used(ir->prev)) {
+      pass23 = 1;
+      lj_assertJ(s != 0, "unused slot 0 in snapshot");
+      tr = s;
+    } else {
+      IRType t = irt_type(ir->t);
+      uint32_t mode = IRSLOAD_INHERIT|IRSLOAD_PARENT;
+      if (LJ_SOFTFP32 && (sn & SNAP_SOFTFPNUM)) t = IRT_NUM;
+      if (ir->o == IR_SLOAD) mode |= (ir->op2 & IRSLOAD_READONLY);
+      if ((sn & SNAP_KEYINDEX)) mode |= IRSLOAD_KEYINDEX;
+      tr = emitir_raw(IRT(IR_SLOAD, t), s, mode);
+    }
+  setslot:
+    /* Same as TREF_* flags. */
+    J->slot[s] = tr | (sn&(SNAP_KEYINDEX|SNAP_CONT|SNAP_FRAME));
+    J->framedepth += ((sn & (SNAP_CONT|SNAP_FRAME)) && (s != LJ_FR2));
+    if ((sn & SNAP_FRAME))
+      J->baseslot = s+1;
+  }
+  if (pass23) {
+    IRIns *irlast = &T->ir[snap->ref];
+    pass23 = 0;
+    /* Emit dependent PVALs. */
+    for (n = 0; n < nent; n++) {
+      SnapEntry sn = map[n];
+      IRRef refp = snap_ref(sn);
+      IRIns *ir = &T->ir[refp];
+      if (regsp_reg(ir->r) == RID_SUNK) {
+	if (J->slot[snap_slot(sn)] != snap_slot(sn)) continue;
+	pass23 = 1;
+	lj_assertJ(ir->o == IR_TNEW || ir->o == IR_TDUP ||
+		   ir->o == IR_CNEW || ir->o == IR_CNEWI,
+		   "sunk parent IR %04d has bad op %d", refp - REF_BIAS, ir->o);
+	if (ir->op1 >= T->nk) snap_pref(J, T, map, nent, seen, ir->op1);
+	if (ir->op2 >= T->nk) snap_pref(J, T, map, nent, seen, ir->op2);
+	if (LJ_HASFFI && ir->o == IR_CNEWI) {
+	  if (LJ_32 && refp+1 < T->nins && (ir+1)->o == IR_HIOP)
+	    snap_pref(J, T, map, nent, seen, (ir+1)->op2);
+	} else {
+	  IRIns *irs;
+	  for (irs = ir+1; irs < irlast; irs++)
+	    if (irs->r == RID_SINK && snap_sunk_store(T, ir, irs)) {
+	      if (snap_pref(J, T, map, nent, seen, irs->op2) == 0)
+		snap_pref(J, T, map, nent, seen, T->ir[irs->op2].op1);
+	      else if ((LJ_SOFTFP32 || (LJ_32 && LJ_HASFFI)) &&
+		       irs+1 < irlast && (irs+1)->o == IR_HIOP)
+		snap_pref(J, T, map, nent, seen, (irs+1)->op2);
+	    }
+	}
+      } else if (!irref_isk(refp) && !regsp_used(ir->prev)) {
+	lj_assertJ(ir->o == IR_CONV && ir->op2 == IRCONV_NUM_INT,
+		   "sunk parent IR %04d has bad op %d", refp - REF_BIAS, ir->o);
+	J->slot[snap_slot(sn)] = snap_pref(J, T, map, nent, seen, ir->op1);
+      }
+    }
+    /* Replay sunk instructions. */
+    for (n = 0; pass23 && n < nent; n++) {
+      SnapEntry sn = map[n];
+      IRRef refp = snap_ref(sn);
+      IRIns *ir = &T->ir[refp];
+      if (regsp_reg(ir->r) == RID_SUNK) {
+	TRef op1, op2;
+	if (J->slot[snap_slot(sn)] != snap_slot(sn)) {  /* De-dup allocs. */
+	  J->slot[snap_slot(sn)] = J->slot[J->slot[snap_slot(sn)]];
+	  continue;
+	}
+	op1 = ir->op1;
+	if (op1 >= T->nk) op1 = snap_pref(J, T, map, nent, seen, op1);
+	op2 = ir->op2;
+	if (op2 >= T->nk) op2 = snap_pref(J, T, map, nent, seen, op2);
+	if (LJ_HASFFI && ir->o == IR_CNEWI) {
+	  if (LJ_32 && refp+1 < T->nins && (ir+1)->o == IR_HIOP) {
+	    lj_needsplit(J);  /* Emit joining HIOP. */
+	    op2 = emitir_raw(IRT(IR_HIOP, IRT_I64), op2,
+			     snap_pref(J, T, map, nent, seen, (ir+1)->op2));
+	  }
+	  J->slot[snap_slot(sn)] = emitir(ir->ot & ~(IRT_MARK|IRT_ISPHI), op1, op2);
+	} else {
+	  IRIns *irs;
+	  TRef tr = emitir(ir->ot, op1, op2);
+	  J->slot[snap_slot(sn)] = tr;
+	  for (irs = ir+1; irs < irlast; irs++)
+	    if (irs->r == RID_SINK && snap_sunk_store(T, ir, irs)) {
+	      IRIns *irr = &T->ir[irs->op1];
+	      TRef val, key = irr->op2, tmp = tr;
+	      if (irr->o != IR_FREF) {
+		IRIns *irk = &T->ir[key];
+		if (irr->o == IR_HREFK)
+		  key = lj_ir_kslot(J, snap_replay_const(J, &T->ir[irk->op1]),
+				    irk->op2);
+		else
+		  key = snap_replay_const(J, irk);
+		if (irr->o == IR_HREFK || irr->o == IR_AREF) {
+		  IRIns *irf = &T->ir[irr->op1];
+		  tmp = emitir(irf->ot, tmp, irf->op2);
+		}
+	      }
+	      tmp = emitir(irr->ot, tmp, key);
+	      val = snap_pref(J, T, map, nent, seen, irs->op2);
+	      if (val == 0) {
+		IRIns *irc = &T->ir[irs->op2];
+		lj_assertJ(irc->o == IR_CONV && irc->op2 == IRCONV_NUM_INT,
+			   "sunk store for parent IR %04d with bad op %d",
+			   refp - REF_BIAS, irc->o);
+		val = snap_pref(J, T, map, nent, seen, irc->op1);
+		val = emitir(IRTN(IR_CONV), val, IRCONV_NUM_INT);
+	      } else if ((LJ_SOFTFP32 || (LJ_32 && LJ_HASFFI)) &&
+			 irs+1 < irlast && (irs+1)->o == IR_HIOP) {
+		IRType t = IRT_I64;
+		if (LJ_SOFTFP32 && irt_type((irs+1)->t) == IRT_SOFTFP)
+		  t = IRT_NUM;
+		lj_needsplit(J);
+		if (irref_isk(irs->op2) && irref_isk((irs+1)->op2)) {
+		  uint64_t k = (uint32_t)T->ir[irs->op2].i +
+			       ((uint64_t)T->ir[(irs+1)->op2].i << 32);
+		  val = lj_ir_k64(J, t == IRT_I64 ? IR_KINT64 : IR_KNUM, k);
+		} else {
+		  val = emitir_raw(IRT(IR_HIOP, t), val,
+			  snap_pref(J, T, map, nent, seen, (irs+1)->op2));
+		}
+		tmp = emitir(IRT(irs->o, t), tmp, val);
+		continue;
+	      }
+	      tmp = emitir(irs->ot, tmp, val);
+	    } else if (LJ_HASFFI && irs->o == IR_XBAR && ir->o == IR_CNEW) {
+	      emitir(IRT(IR_XBAR, IRT_NIL), 0, 0);
+	    }
+	}
+      }
+    }
+  }
+  J->base = J->slot + J->baseslot;
+  J->maxslot = snap->nslots - J->baseslot;
+  lj_snap_add(J);
+  if (pass23)  /* Need explicit GC step _after_ initial snapshot. */
+    emitir_raw(IRTG(IR_GCSTEP, IRT_NIL), 0, 0);
+}
+
+/* -- Snapshot restore ---------------------------------------------------- */
+
+static void snap_unsink(jit_State *J, GCtrace *T, ExitState *ex,
+			SnapNo snapno, BloomFilter rfilt,
+			IRIns *ir, TValue *o);
+
+/* Restore a value from the trace exit state. */
+static void snap_restoreval(jit_State *J, GCtrace *T, ExitState *ex,
+			    SnapNo snapno, BloomFilter rfilt,
+			    IRRef ref, TValue *o)
+{
+  IRIns *ir = &T->ir[ref];
+  IRType1 t = ir->t;
+  RegSP rs = ir->prev;
+  if (irref_isk(ref)) {  /* Restore constant slot. */
+    if (ir->o == IR_KPTR) {
+      o->u64 = (uint64_t)(uintptr_t)ir_kptr(ir);
+    } else {
+      lj_assertJ(!(ir->o == IR_KKPTR || ir->o == IR_KNULL),
+		 "restore of const from IR %04d with bad op %d",
+		 ref - REF_BIAS, ir->o);
+      lj_ir_kvalue(J->L, o, ir);
+    }
+    return;
+  }
+  if (LJ_UNLIKELY(bloomtest(rfilt, ref)))
+    rs = snap_renameref(T, snapno, ref, rs);
+  if (ra_hasspill(regsp_spill(rs))) {  /* Restore from spill slot. */
+    int32_t *sps = &ex->spill[regsp_spill(rs)];
+    if (irt_isinteger(t)) {
+      setintV(o, *sps);
+#if !LJ_SOFTFP32
+    } else if (irt_isnum(t)) {
+      o->u64 = *(uint64_t *)sps;
+#endif
+#if LJ_64 && !LJ_GC64
+    } else if (irt_islightud(t)) {
+      /* 64 bit lightuserdata which may escape already has the tag bits. */
+      o->u64 = *(uint64_t *)sps;
+#endif
+    } else {
+      lj_assertJ(!irt_ispri(t), "PRI ref with spill slot");
+      setgcV(J->L, o, (GCobj *)(uintptr_t)*(GCSize *)sps, irt_toitype(t));
+    }
+  } else {  /* Restore from register. */
+    Reg r = regsp_reg(rs);
+    if (ra_noreg(r)) {
+      lj_assertJ(ir->o == IR_CONV && ir->op2 == IRCONV_NUM_INT,
+		 "restore from IR %04d has no reg", ref - REF_BIAS);
+      snap_restoreval(J, T, ex, snapno, rfilt, ir->op1, o);
+      if (LJ_DUALNUM) setnumV(o, (lua_Number)intV(o));
+      return;
+    } else if (irt_isinteger(t)) {
+      setintV(o, (int32_t)ex->gpr[r-RID_MIN_GPR]);
+#if !LJ_SOFTFP
+    } else if (irt_isnum(t)) {
+      setnumV(o, ex->fpr[r-RID_MIN_FPR]);
+#elif LJ_64  /* && LJ_SOFTFP */
+    } else if (irt_isnum(t)) {
+      o->u64 = ex->gpr[r-RID_MIN_GPR];
+#endif
+#if LJ_64 && !LJ_GC64
+    } else if (irt_is64(t)) {
+      /* 64 bit values that already have the tag bits. */
+      o->u64 = ex->gpr[r-RID_MIN_GPR];
+#endif
+    } else if (irt_ispri(t)) {
+      setpriV(o, irt_toitype(t));
+    } else {
+      setgcV(J->L, o, (GCobj *)ex->gpr[r-RID_MIN_GPR], irt_toitype(t));
+    }
+  }
+}
+
+#if LJ_HASFFI
+/* Restore raw data from the trace exit state. */
+static void snap_restoredata(jit_State *J, GCtrace *T, ExitState *ex,
+			     SnapNo snapno, BloomFilter rfilt,
+			     IRRef ref, void *dst, CTSize sz)
+{
+  IRIns *ir = &T->ir[ref];
+  RegSP rs = ir->prev;
+  int32_t *src;
+  uint64_t tmp;
+  UNUSED(J);
+  if (irref_isk(ref)) {
+    if (ir_isk64(ir)) {
+      src = (int32_t *)&ir[1];
+    } else if (sz == 8) {
+      tmp = (uint64_t)(uint32_t)ir->i;
+      src = (int32_t *)&tmp;
+    } else {
+      src = &ir->i;
+    }
+  } else {
+    if (LJ_UNLIKELY(bloomtest(rfilt, ref)))
+      rs = snap_renameref(T, snapno, ref, rs);
+    if (ra_hasspill(regsp_spill(rs))) {
+      src = &ex->spill[regsp_spill(rs)];
+      if (sz == 8 && !irt_is64(ir->t)) {
+	tmp = (uint64_t)(uint32_t)*src;
+	src = (int32_t *)&tmp;
+      }
+    } else {
+      Reg r = regsp_reg(rs);
+      if (ra_noreg(r)) {
+	/* Note: this assumes CNEWI is never used for SOFTFP split numbers. */
+	lj_assertJ(sz == 8 && ir->o == IR_CONV && ir->op2 == IRCONV_NUM_INT,
+		   "restore from IR %04d has no reg", ref - REF_BIAS);
+	snap_restoredata(J, T, ex, snapno, rfilt, ir->op1, dst, 4);
+	*(lua_Number *)dst = (lua_Number)*(int32_t *)dst;
+	return;
+      }
+      src = (int32_t *)&ex->gpr[r-RID_MIN_GPR];
+#if !LJ_SOFTFP
+      if (r >= RID_MAX_GPR) {
+	src = (int32_t *)&ex->fpr[r-RID_MIN_FPR];
+#if LJ_TARGET_PPC
+	if (sz == 4) {  /* PPC FPRs are always doubles. */
+	  *(float *)dst = (float)*(double *)src;
+	  return;
+	}
+#else
+	if (LJ_BE && sz == 4) src++;
+#endif
+      } else
+#endif
+      if (LJ_64 && LJ_BE && sz == 4) src++;
+    }
+  }
+  lj_assertJ(sz == 1 || sz == 2 || sz == 4 || sz == 8,
+	     "restore from IR %04d with bad size %d", ref - REF_BIAS, sz);
+  if (sz == 4) *(int32_t *)dst = *src;
+  else if (sz == 8) *(int64_t *)dst = *(int64_t *)src;
+  else if (sz == 1) *(int8_t *)dst = (int8_t)*src;
+  else *(int16_t *)dst = (int16_t)*src;
+}
+#endif
+
+/* Unsink allocation from the trace exit state. Unsink sunk stores. */
+static void snap_unsink(jit_State *J, GCtrace *T, ExitState *ex,
+			SnapNo snapno, BloomFilter rfilt,
+			IRIns *ir, TValue *o)
+{
+  lj_assertJ(ir->o == IR_TNEW || ir->o == IR_TDUP ||
+	     ir->o == IR_CNEW || ir->o == IR_CNEWI,
+	     "sunk allocation with bad op %d", ir->o);
+#if LJ_HASFFI
+  if (ir->o == IR_CNEW || ir->o == IR_CNEWI) {
+    CTState *cts = ctype_cts(J->L);
+    CTypeID id = (CTypeID)T->ir[ir->op1].i;
+    CTSize sz;
+    CTInfo info = lj_ctype_info(cts, id, &sz);
+    GCcdata *cd = lj_cdata_newx(cts, id, sz, info);
+    setcdataV(J->L, o, cd);
+    if (ir->o == IR_CNEWI) {
+      uint8_t *p = (uint8_t *)cdataptr(cd);
+      lj_assertJ(sz == 4 || sz == 8, "sunk cdata with bad size %d", sz);
+      if (LJ_32 && sz == 8 && ir+1 < T->ir + T->nins && (ir+1)->o == IR_HIOP) {
+	snap_restoredata(J, T, ex, snapno, rfilt, (ir+1)->op2,
+			 LJ_LE ? p+4 : p, 4);
+	if (LJ_BE) p += 4;
+	sz = 4;
+      }
+      snap_restoredata(J, T, ex, snapno, rfilt, ir->op2, p, sz);
+    } else {
+      IRIns *irs, *irlast = &T->ir[T->snap[snapno].ref];
+      for (irs = ir+1; irs < irlast; irs++)
+	if (irs->r == RID_SINK && snap_sunk_store(T, ir, irs)) {
+	  IRIns *iro = &T->ir[T->ir[irs->op1].op2];
+	  uint8_t *p = (uint8_t *)cd;
+	  CTSize szs;
+	  lj_assertJ(irs->o == IR_XSTORE, "sunk store with bad op %d", irs->o);
+	  lj_assertJ(T->ir[irs->op1].o == IR_ADD,
+		     "sunk store with bad add op %d", T->ir[irs->op1].o);
+	  lj_assertJ(iro->o == IR_KINT || iro->o == IR_KINT64,
+		     "sunk store with bad const offset op %d", iro->o);
+	  if (irt_is64(irs->t)) szs = 8;
+	  else if (irt_isi8(irs->t) || irt_isu8(irs->t)) szs = 1;
+	  else if (irt_isi16(irs->t) || irt_isu16(irs->t)) szs = 2;
+	  else szs = 4;
+	  if (LJ_64 && iro->o == IR_KINT64)
+	    p += (int64_t)ir_k64(iro)->u64;
+	  else
+	    p += iro->i;
+	  lj_assertJ(p >= (uint8_t *)cdataptr(cd) &&
+		     p + szs <= (uint8_t *)cdataptr(cd) + sz,
+		     "sunk store with offset out of range");
+	  if (LJ_32 && irs+1 < T->ir + T->nins && (irs+1)->o == IR_HIOP) {
+	    lj_assertJ(szs == 4, "sunk store with bad size %d", szs);
+	    snap_restoredata(J, T, ex, snapno, rfilt, (irs+1)->op2,
+			     LJ_LE ? p+4 : p, 4);
+	    if (LJ_BE) p += 4;
+	  }
+	  snap_restoredata(J, T, ex, snapno, rfilt, irs->op2, p, szs);
+	}
+    }
+  } else
+#endif
+  {
+    IRIns *irs, *irlast;
+    GCtab *t = ir->o == IR_TNEW ? lj_tab_new(J->L, ir->op1, ir->op2) :
+				  lj_tab_dup(J->L, ir_ktab(&T->ir[ir->op1]));
+    settabV(J->L, o, t);
+    irlast = &T->ir[T->snap[snapno].ref];
+    for (irs = ir+1; irs < irlast; irs++)
+      if (irs->r == RID_SINK && snap_sunk_store(T, ir, irs)) {
+	IRIns *irk = &T->ir[irs->op1];
+	TValue tmp, *val;
+	lj_assertJ(irs->o == IR_ASTORE || irs->o == IR_HSTORE ||
+		   irs->o == IR_FSTORE,
+		   "sunk store with bad op %d", irs->o);
+	if (irk->o == IR_FREF) {
+	  lj_assertJ(irk->op2 == IRFL_TAB_META,
+		     "sunk store with bad field %d", irk->op2);
+	  snap_restoreval(J, T, ex, snapno, rfilt, irs->op2, &tmp);
+	  /* NOBARRIER: The table is new (marked white). */
+	  setgcref(t->metatable, obj2gco(tabV(&tmp)));
+	} else {
+	  irk = &T->ir[irk->op2];
+	  if (irk->o == IR_KSLOT) irk = &T->ir[irk->op1];
+	  lj_ir_kvalue(J->L, &tmp, irk);
+	  val = lj_tab_set(J->L, t, &tmp);
+	  /* NOBARRIER: The table is new (marked white). */
+	  snap_restoreval(J, T, ex, snapno, rfilt, irs->op2, val);
+	  if (LJ_SOFTFP32 && irs+1 < T->ir + T->nins && (irs+1)->o == IR_HIOP) {
+	    snap_restoreval(J, T, ex, snapno, rfilt, (irs+1)->op2, &tmp);
+	    val->u32.hi = tmp.u32.lo;
+	  }
+	}
+      }
+  }
+}
+
+/* Restore interpreter state from exit state with the help of a snapshot. */
+const BCIns *lj_snap_restore(jit_State *J, void *exptr)
+{
+  ExitState *ex = (ExitState *)exptr;
+  SnapNo snapno = J->exitno;  /* For now, snapno == exitno. */
+  GCtrace *T = traceref(J, J->parent);
+  SnapShot *snap = &T->snap[snapno];
+  MSize n, nent = snap->nent;
+  SnapEntry *map = &T->snapmap[snap->mapofs];
+#if !LJ_FR2 || defined(LUA_USE_ASSERT)
+  SnapEntry *flinks = &T->snapmap[snap_nextofs(T, snap)-1-LJ_FR2];
+#endif
+#if !LJ_FR2
+  ptrdiff_t ftsz0;
+#endif
+  TValue *frame;
+  BloomFilter rfilt = snap_renamefilter(T, snapno);
+  const BCIns *pc = snap_pc(&map[nent]);
+  lua_State *L = J->L;
+
+  /* Set interpreter PC to the next PC to get correct error messages. */
+  setcframe_pc(cframe_raw(L->cframe), pc+1);
+
+  /* Make sure the stack is big enough for the slots from the snapshot. */
+  if (LJ_UNLIKELY(L->base + snap->topslot >= tvref(L->maxstack))) {
+    L->top = curr_topL(L);
+    lj_state_growstack(L, snap->topslot - curr_proto(L)->framesize);
+  }
+
+  /* Fill stack slots with data from the registers and spill slots. */
+  frame = L->base-1-LJ_FR2;
+#if !LJ_FR2
+  ftsz0 = frame_ftsz(frame);  /* Preserve link to previous frame in slot #0. */
+#endif
+  for (n = 0; n < nent; n++) {
+    SnapEntry sn = map[n];
+    if (!(sn & SNAP_NORESTORE)) {
+      TValue *o = &frame[snap_slot(sn)];
+      IRRef ref = snap_ref(sn);
+      IRIns *ir = &T->ir[ref];
+      if (ir->r == RID_SUNK) {
+	MSize j;
+	for (j = 0; j < n; j++)
+	  if (snap_ref(map[j]) == ref) {  /* De-duplicate sunk allocations. */
+	    copyTV(L, o, &frame[snap_slot(map[j])]);
+	    goto dupslot;
+	  }
+	snap_unsink(J, T, ex, snapno, rfilt, ir, o);
+      dupslot:
+	continue;
+      }
+      snap_restoreval(J, T, ex, snapno, rfilt, ref, o);
+      if (LJ_SOFTFP32 && (sn & SNAP_SOFTFPNUM) && tvisint(o)) {
+	TValue tmp;
+	snap_restoreval(J, T, ex, snapno, rfilt, ref+1, &tmp);
+	o->u32.hi = tmp.u32.lo;
+#if !LJ_FR2
+      } else if ((sn & (SNAP_CONT|SNAP_FRAME))) {
+	/* Overwrite tag with frame link. */
+	setframe_ftsz(o, snap_slot(sn) != 0 ? (int32_t)*flinks-- : ftsz0);
+	L->base = o+1;
+#endif
+      } else if ((sn & SNAP_KEYINDEX)) {
+	/* A IRT_INT key index slot is restored as a number. Undo this. */
+	o->u32.lo = (uint32_t)(LJ_DUALNUM ? intV(o) : lj_num2int(numV(o)));
+	o->u32.hi = LJ_KEYINDEX;
+      }
+    }
+  }
+#if LJ_FR2
+  L->base += (map[nent+LJ_BE] & 0xff);
+#endif
+  lj_assertJ(map + nent == flinks, "inconsistent frames in snapshot");
+
+  /* Compute current stack top. */
+  switch (bc_op(*pc)) {
+  default:
+    if (bc_op(*pc) < BC_FUNCF) {
+      L->top = curr_topL(L);
+      break;
+    }
+    /* fallthrough */
+  case BC_CALLM: case BC_CALLMT: case BC_RETM: case BC_TSETM:
+    L->top = frame + snap->nslots;
+    break;
+  }
+  return pc;
+}
+
+#undef emitir_raw
+#undef emitir
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_snap.h b/libs/luajit-cmake/luajit/src/lj_snap.h
new file mode 100644
index 0000000..b7dabed
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_snap.h
@@ -0,0 +1,35 @@
+/*
+** Snapshot handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_SNAP_H
+#define _LJ_SNAP_H
+
+#include "lj_obj.h"
+#include "lj_jit.h"
+
+#if LJ_HASJIT
+LJ_FUNC void lj_snap_add(jit_State *J);
+LJ_FUNC void lj_snap_purge(jit_State *J);
+LJ_FUNC void lj_snap_shrink(jit_State *J);
+LJ_FUNC IRIns *lj_snap_regspmap(jit_State *J, GCtrace *T, SnapNo snapno,
+				IRIns *ir);
+LJ_FUNC void lj_snap_replay(jit_State *J, GCtrace *T);
+LJ_FUNC const BCIns *lj_snap_restore(jit_State *J, void *exptr);
+LJ_FUNC void lj_snap_grow_buf_(jit_State *J, MSize need);
+LJ_FUNC void lj_snap_grow_map_(jit_State *J, MSize need);
+
+static LJ_AINLINE void lj_snap_grow_buf(jit_State *J, MSize need)
+{
+  if (LJ_UNLIKELY(need > J->sizesnap)) lj_snap_grow_buf_(J, need);
+}
+
+static LJ_AINLINE void lj_snap_grow_map(jit_State *J, MSize need)
+{
+  if (LJ_UNLIKELY(need > J->sizesnapmap)) lj_snap_grow_map_(J, need);
+}
+
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_state.c b/libs/luajit-cmake/luajit/src/lj_state.c
new file mode 100644
index 0000000..0b9c46b
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_state.c
@@ -0,0 +1,335 @@
+/*
+** State and stack handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_state_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_func.h"
+#include "lj_meta.h"
+#include "lj_state.h"
+#include "lj_frame.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#endif
+#include "lj_trace.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+#include "lj_prng.h"
+#include "lj_lex.h"
+#include "lj_alloc.h"
+#include "luajit.h"
+
+/* -- Stack handling ------------------------------------------------------ */
+
+/* Stack sizes. */
+#define LJ_STACK_MIN	LUA_MINSTACK	/* Min. stack size. */
+#define LJ_STACK_MAX	LUAI_MAXSTACK	/* Max. stack size. */
+#define LJ_STACK_START	(2*LJ_STACK_MIN)	/* Starting stack size. */
+#define LJ_STACK_MAXEX	(LJ_STACK_MAX + 1 + LJ_STACK_EXTRA)
+
+/* Explanation of LJ_STACK_EXTRA:
+**
+** Calls to metamethods store their arguments beyond the current top
+** without checking for the stack limit. This avoids stack resizes which
+** would invalidate passed TValue pointers. The stack check is performed
+** later by the function header. This can safely resize the stack or raise
+** an error. Thus we need some extra slots beyond the current stack limit.
+**
+** Most metamethods need 4 slots above top (cont, mobj, arg1, arg2) plus
+** one extra slot if mobj is not a function. Only lj_meta_tset needs 5
+** slots above top, but then mobj is always a function. So we can get by
+** with 5 extra slots.
+** LJ_FR2: We need 2 more slots for the frame PC and the continuation PC.
+*/
+
+/* Resize stack slots and adjust pointers in state. */
+static void resizestack(lua_State *L, MSize n)
+{
+  TValue *st, *oldst = tvref(L->stack);
+  ptrdiff_t delta;
+  MSize oldsize = L->stacksize;
+  MSize realsize = n + 1 + LJ_STACK_EXTRA;
+  GCobj *up;
+  lj_assertL((MSize)(tvref(L->maxstack)-oldst) == L->stacksize-LJ_STACK_EXTRA-1,
+	     "inconsistent stack size");
+  st = (TValue *)lj_mem_realloc(L, tvref(L->stack),
+				(MSize)(oldsize*sizeof(TValue)),
+				(MSize)(realsize*sizeof(TValue)));
+  setmref(L->stack, st);
+  delta = (char *)st - (char *)oldst;
+  setmref(L->maxstack, st + n);
+  while (oldsize < realsize)  /* Clear new slots. */
+    setnilV(st + oldsize++);
+  L->stacksize = realsize;
+  if ((size_t)(mref(G(L)->jit_base, char) - (char *)oldst) < oldsize)
+    setmref(G(L)->jit_base, mref(G(L)->jit_base, char) + delta);
+  L->base = (TValue *)((char *)L->base + delta);
+  L->top = (TValue *)((char *)L->top + delta);
+  for (up = gcref(L->openupval); up != NULL; up = gcnext(up))
+    setmref(gco2uv(up)->v, (TValue *)((char *)uvval(gco2uv(up)) + delta));
+}
+
+/* Relimit stack after error, in case the limit was overdrawn. */
+void lj_state_relimitstack(lua_State *L)
+{
+  if (L->stacksize > LJ_STACK_MAXEX && L->top-tvref(L->stack) < LJ_STACK_MAX-1)
+    resizestack(L, LJ_STACK_MAX);
+}
+
+/* Try to shrink the stack (called from GC). */
+void lj_state_shrinkstack(lua_State *L, MSize used)
+{
+  if (L->stacksize > LJ_STACK_MAXEX)
+    return;  /* Avoid stack shrinking while handling stack overflow. */
+  if (4*used < L->stacksize &&
+      2*(LJ_STACK_START+LJ_STACK_EXTRA) < L->stacksize &&
+      /* Don't shrink stack of live trace. */
+      (tvref(G(L)->jit_base) == NULL || obj2gco(L) != gcref(G(L)->cur_L)))
+    resizestack(L, L->stacksize >> 1);
+}
+
+/* Try to grow stack. */
+void LJ_FASTCALL lj_state_growstack(lua_State *L, MSize need)
+{
+  MSize n;
+  if (L->stacksize > LJ_STACK_MAXEX)  /* Overflow while handling overflow? */
+    lj_err_throw(L, LUA_ERRERR);
+  n = L->stacksize + need;
+  if (n > LJ_STACK_MAX) {
+    n += 2*LUA_MINSTACK;
+  } else if (n < 2*L->stacksize) {
+    n = 2*L->stacksize;
+    if (n >= LJ_STACK_MAX)
+      n = LJ_STACK_MAX;
+  }
+  resizestack(L, n);
+  if (L->stacksize > LJ_STACK_MAXEX)
+    lj_err_msg(L, LJ_ERR_STKOV);
+}
+
+void LJ_FASTCALL lj_state_growstack1(lua_State *L)
+{
+  lj_state_growstack(L, 1);
+}
+
+/* Allocate basic stack for new state. */
+static void stack_init(lua_State *L1, lua_State *L)
+{
+  TValue *stend, *st = lj_mem_newvec(L, LJ_STACK_START+LJ_STACK_EXTRA, TValue);
+  setmref(L1->stack, st);
+  L1->stacksize = LJ_STACK_START + LJ_STACK_EXTRA;
+  stend = st + L1->stacksize;
+  setmref(L1->maxstack, stend - LJ_STACK_EXTRA - 1);
+  setthreadV(L1, st++, L1);  /* Needed for curr_funcisL() on empty stack. */
+  if (LJ_FR2) setnilV(st++);
+  L1->base = L1->top = st;
+  while (st < stend)  /* Clear new slots. */
+    setnilV(st++);
+}
+
+/* -- State handling ------------------------------------------------------ */
+
+/* Open parts that may cause memory-allocation errors. */
+static TValue *cpluaopen(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  global_State *g = G(L);
+  UNUSED(dummy);
+  UNUSED(ud);
+  stack_init(L, L);
+  /* NOBARRIER: State initialization, all objects are white. */
+  setgcref(L->env, obj2gco(lj_tab_new(L, 0, LJ_MIN_GLOBAL)));
+  settabV(L, registry(L), lj_tab_new(L, 0, LJ_MIN_REGISTRY));
+  lj_str_init(L);
+  lj_meta_init(L);
+  lj_lex_init(L);
+  fixstring(lj_err_str(L, LJ_ERR_ERRMEM));  /* Preallocate memory error msg. */
+  g->gc.threshold = 4*g->gc.total;
+  lj_trace_initstate(g);
+  lj_err_verify();
+  return NULL;
+}
+
+static void close_state(lua_State *L)
+{
+  global_State *g = G(L);
+  lj_func_closeuv(L, tvref(L->stack));
+  lj_gc_freeall(g);
+  lj_assertG(gcref(g->gc.root) == obj2gco(L),
+	     "main thread is not first GC object");
+  lj_assertG(g->str.num == 0, "leaked %d strings", g->str.num);
+  lj_trace_freestate(g);
+#if LJ_HASFFI
+  lj_ctype_freestate(g);
+#endif
+  lj_str_freetab(g);
+  lj_buf_free(g, &g->tmpbuf);
+  lj_mem_freevec(g, tvref(L->stack), L->stacksize, TValue);
+#if LJ_64
+  if (mref(g->gc.lightudseg, uint32_t)) {
+    MSize segnum = g->gc.lightudnum ? (2 << lj_fls(g->gc.lightudnum)) : 2;
+    lj_mem_freevec(g, mref(g->gc.lightudseg, uint32_t), segnum, uint32_t);
+  }
+#endif
+  lj_assertG(g->gc.total == sizeof(GG_State),
+	     "memory leak of %lld bytes",
+	     (long long)(g->gc.total - sizeof(GG_State)));
+#ifndef LUAJIT_USE_SYSMALLOC
+  if (g->allocf == lj_alloc_f)
+    lj_alloc_destroy(g->allocd);
+  else
+#endif
+    g->allocf(g->allocd, G2GG(g), sizeof(GG_State), 0);
+}
+
+#if LJ_64 && !LJ_GC64 && !(defined(LUAJIT_USE_VALGRIND) && defined(LUAJIT_USE_SYSMALLOC))
+lua_State *lj_state_newstate(lua_Alloc allocf, void *allocd)
+#else
+LUA_API lua_State *lua_newstate(lua_Alloc allocf, void *allocd)
+#endif
+{
+  PRNGState prng;
+  GG_State *GG;
+  lua_State *L;
+  global_State *g;
+  /* We need the PRNG for the memory allocator, so initialize this first. */
+  if (!lj_prng_seed_secure(&prng)) {
+    lj_assertX(0, "secure PRNG seeding failed");
+    /* Can only return NULL here, so this errors with "not enough memory". */
+    return NULL;
+  }
+#ifndef LUAJIT_USE_SYSMALLOC
+  if (allocf == LJ_ALLOCF_INTERNAL) {
+    allocd = lj_alloc_create(&prng);
+    if (!allocd) return NULL;
+    allocf = lj_alloc_f;
+  }
+#endif
+  GG = (GG_State *)allocf(allocd, NULL, 0, sizeof(GG_State));
+  if (GG == NULL || !checkptrGC(GG)) return NULL;
+  memset(GG, 0, sizeof(GG_State));
+  L = &GG->L;
+  g = &GG->g;
+  L->gct = ~LJ_TTHREAD;
+  L->marked = LJ_GC_WHITE0 | LJ_GC_FIXED | LJ_GC_SFIXED;  /* Prevent free. */
+  L->dummy_ffid = FF_C;
+  setmref(L->glref, g);
+  g->gc.currentwhite = LJ_GC_WHITE0 | LJ_GC_FIXED;
+  g->strempty.marked = LJ_GC_WHITE0;
+  g->strempty.gct = ~LJ_TSTR;
+  g->allocf = allocf;
+  g->allocd = allocd;
+  g->prng = prng;
+#ifndef LUAJIT_USE_SYSMALLOC
+  if (allocf == lj_alloc_f) {
+    lj_alloc_setprng(allocd, &g->prng);
+  }
+#endif
+  setgcref(g->mainthref, obj2gco(L));
+  setgcref(g->uvhead.prev, obj2gco(&g->uvhead));
+  setgcref(g->uvhead.next, obj2gco(&g->uvhead));
+  g->str.mask = ~(MSize)0;
+  setnilV(registry(L));
+  setnilV(&g->nilnode.val);
+  setnilV(&g->nilnode.key);
+#if !LJ_GC64
+  setmref(g->nilnode.freetop, &g->nilnode);
+#endif
+  lj_buf_init(NULL, &g->tmpbuf);
+  g->gc.state = GCSpause;
+  setgcref(g->gc.root, obj2gco(L));
+  setmref(g->gc.sweep, &g->gc.root);
+  g->gc.total = sizeof(GG_State);
+  g->gc.pause = LUAI_GCPAUSE;
+  g->gc.stepmul = LUAI_GCMUL;
+  lj_dispatch_init((GG_State *)L);
+  L->status = LUA_ERRERR+1;  /* Avoid touching the stack upon memory error. */
+  if (lj_vm_cpcall(L, NULL, NULL, cpluaopen) != 0) {
+    /* Memory allocation error: free partial state. */
+    close_state(L);
+    return NULL;
+  }
+  L->status = LUA_OK;
+  return L;
+}
+
+static TValue *cpfinalize(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  UNUSED(dummy);
+  UNUSED(ud);
+  lj_gc_finalize_cdata(L);
+  lj_gc_finalize_udata(L);
+  /* Frame pop omitted. */
+  return NULL;
+}
+
+LUA_API void lua_close(lua_State *L)
+{
+  global_State *g = G(L);
+  int i;
+  L = mainthread(g);  /* Only the main thread can be closed. */
+#if LJ_HASPROFILE
+  luaJIT_profile_stop(L);
+#endif
+  setgcrefnull(g->cur_L);
+  lj_func_closeuv(L, tvref(L->stack));
+  lj_gc_separateudata(g, 1);  /* Separate udata which have GC metamethods. */
+#if LJ_HASJIT
+  G2J(g)->flags &= ~JIT_F_ON;
+  G2J(g)->state = LJ_TRACE_IDLE;
+  lj_dispatch_update(g);
+#endif
+  for (i = 0;;) {
+    hook_enter(g);
+    L->status = LUA_OK;
+    L->base = L->top = tvref(L->stack) + 1 + LJ_FR2;
+    L->cframe = NULL;
+    if (lj_vm_cpcall(L, NULL, NULL, cpfinalize) == LUA_OK) {
+      if (++i >= 10) break;
+      lj_gc_separateudata(g, 1);  /* Separate udata again. */
+      if (gcref(g->gc.mmudata) == NULL)  /* Until nothing is left to do. */
+	break;
+    }
+  }
+  close_state(L);
+}
+
+lua_State *lj_state_new(lua_State *L)
+{
+  lua_State *L1 = lj_mem_newobj(L, lua_State);
+  L1->gct = ~LJ_TTHREAD;
+  L1->dummy_ffid = FF_C;
+  L1->status = LUA_OK;
+  L1->stacksize = 0;
+  setmref(L1->stack, NULL);
+  L1->cframe = NULL;
+  /* NOBARRIER: The lua_State is new (marked white). */
+  setgcrefnull(L1->openupval);
+  setmrefr(L1->glref, L->glref);
+  setgcrefr(L1->env, L->env);
+  stack_init(L1, L);  /* init stack */
+  lj_assertL(iswhite(obj2gco(L1)), "new thread object is not white");
+  return L1;
+}
+
+void LJ_FASTCALL lj_state_free(global_State *g, lua_State *L)
+{
+  lj_assertG(L != mainthread(g), "free of main thread");
+  if (obj2gco(L) == gcref(g->cur_L))
+    setgcrefnull(g->cur_L);
+  lj_func_closeuv(L, tvref(L->stack));
+  lj_assertG(gcref(L->openupval) == NULL, "stale open upvalues");
+  lj_mem_freevec(g, tvref(L->stack), L->stacksize, TValue);
+  lj_mem_freet(g, L);
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_state.h b/libs/luajit-cmake/luajit/src/lj_state.h
new file mode 100644
index 0000000..d22b7a6
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_state.h
@@ -0,0 +1,37 @@
+/*
+** State and stack handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_STATE_H
+#define _LJ_STATE_H
+
+#include "lj_obj.h"
+
+#define incr_top(L) \
+  (++L->top >= tvref(L->maxstack) && (lj_state_growstack1(L), 0))
+
+#define savestack(L, p)		((char *)(p) - mref(L->stack, char))
+#define restorestack(L, n)	((TValue *)(mref(L->stack, char) + (n)))
+
+LJ_FUNC void lj_state_relimitstack(lua_State *L);
+LJ_FUNC void lj_state_shrinkstack(lua_State *L, MSize used);
+LJ_FUNCA void LJ_FASTCALL lj_state_growstack(lua_State *L, MSize need);
+LJ_FUNC void LJ_FASTCALL lj_state_growstack1(lua_State *L);
+
+static LJ_AINLINE void lj_state_checkstack(lua_State *L, MSize need)
+{
+  if ((mref(L->maxstack, char) - (char *)L->top) <=
+      (ptrdiff_t)need*(ptrdiff_t)sizeof(TValue))
+    lj_state_growstack(L, need);
+}
+
+LJ_FUNC lua_State *lj_state_new(lua_State *L);
+LJ_FUNC void LJ_FASTCALL lj_state_free(global_State *g, lua_State *L);
+#if LJ_64 && !LJ_GC64 && !(defined(LUAJIT_USE_VALGRIND) && defined(LUAJIT_USE_SYSMALLOC))
+LJ_FUNC lua_State *lj_state_newstate(lua_Alloc f, void *ud);
+#endif
+
+#define LJ_ALLOCF_INTERNAL	((lua_Alloc)(void *)(uintptr_t)(1237<<4))
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_str.c b/libs/luajit-cmake/luajit/src/lj_str.c
new file mode 100644
index 0000000..a5282da
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_str.c
@@ -0,0 +1,370 @@
+/*
+** String handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_str_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_char.h"
+#include "lj_prng.h"
+
+/* -- String helpers ------------------------------------------------------ */
+
+/* Ordered compare of strings. Assumes string data is 4-byte aligned. */
+int32_t LJ_FASTCALL lj_str_cmp(GCstr *a, GCstr *b)
+{
+  MSize i, n = a->len > b->len ? b->len : a->len;
+  for (i = 0; i < n; i += 4) {
+    /* Note: innocuous access up to end of string + 3. */
+    uint32_t va = *(const uint32_t *)(strdata(a)+i);
+    uint32_t vb = *(const uint32_t *)(strdata(b)+i);
+    if (va != vb) {
+#if LJ_LE
+      va = lj_bswap(va); vb = lj_bswap(vb);
+#endif
+      i -= n;
+      if ((int32_t)i >= -3) {
+	va >>= 32+(i<<3); vb >>= 32+(i<<3);
+	if (va == vb) break;
+      }
+      return va < vb ? -1 : 1;
+    }
+  }
+  return (int32_t)(a->len - b->len);
+}
+
+/* Find fixed string p inside string s. */
+const char *lj_str_find(const char *s, const char *p, MSize slen, MSize plen)
+{
+  if (plen <= slen) {
+    if (plen == 0) {
+      return s;
+    } else {
+      int c = *(const uint8_t *)p++;
+      plen--; slen -= plen;
+      while (slen) {
+	const char *q = (const char *)memchr(s, c, slen);
+	if (!q) break;
+	if (memcmp(q+1, p, plen) == 0) return q;
+	q++; slen -= (MSize)(q-s); s = q;
+      }
+    }
+  }
+  return NULL;
+}
+
+/* Check whether a string has a pattern matching character. */
+int lj_str_haspattern(GCstr *s)
+{
+  const char *p = strdata(s), *q = p + s->len;
+  while (p < q) {
+    int c = *(const uint8_t *)p++;
+    if (lj_char_ispunct(c) && strchr("^$*+?.([%-", c))
+      return 1;  /* Found a pattern matching char. */
+  }
+  return 0;  /* No pattern matching chars found. */
+}
+
+/* -- String hashing ------------------------------------------------------ */
+
+/* Keyed sparse ARX string hash. Constant time. */
+static StrHash hash_sparse(uint64_t seed, const char *str, MSize len)
+{
+  /* Constants taken from lookup3 hash by Bob Jenkins. */
+  StrHash a, b, h = len ^ (StrHash)seed;
+  if (len >= 4) {  /* Caveat: unaligned access! */
+    a = lj_getu32(str);
+    h ^= lj_getu32(str+len-4);
+    b = lj_getu32(str+(len>>1)-2);
+    h ^= b; h -= lj_rol(b, 14);
+    b += lj_getu32(str+(len>>2)-1);
+  } else {
+    a = *(const uint8_t *)str;
+    h ^= *(const uint8_t *)(str+len-1);
+    b = *(const uint8_t *)(str+(len>>1));
+    h ^= b; h -= lj_rol(b, 14);
+  }
+  a ^= h; a -= lj_rol(h, 11);
+  b ^= a; b -= lj_rol(a, 25);
+  h ^= b; h -= lj_rol(b, 16);
+  return h;
+}
+
+#if LUAJIT_SECURITY_STRHASH
+/* Keyed dense ARX string hash. Linear time. */
+static LJ_NOINLINE StrHash hash_dense(uint64_t seed, StrHash h,
+				      const char *str, MSize len)
+{
+  StrHash b = lj_bswap(lj_rol(h ^ (StrHash)(seed >> 32), 4));
+  if (len > 12) {
+    StrHash a = (StrHash)seed;
+    const char *pe = str+len-12, *p = pe, *q = str;
+    do {
+      a += lj_getu32(p);
+      b += lj_getu32(p+4);
+      h += lj_getu32(p+8);
+      p = q; q += 12;
+      h ^= b; h -= lj_rol(b, 14);
+      a ^= h; a -= lj_rol(h, 11);
+      b ^= a; b -= lj_rol(a, 25);
+    } while (p < pe);
+    h ^= b; h -= lj_rol(b, 16);
+    a ^= h; a -= lj_rol(h, 4);
+    b ^= a; b -= lj_rol(a, 14);
+  }
+  return b;
+}
+#endif
+
+/* -- String interning ---------------------------------------------------- */
+
+#define LJ_STR_MAXCOLL		32
+
+/* Resize the string interning hash table (grow and shrink). */
+void lj_str_resize(lua_State *L, MSize newmask)
+{
+  global_State *g = G(L);
+  GCRef *newtab, *oldtab = g->str.tab;
+  MSize i;
+
+  /* No resizing during GC traversal or if already too big. */
+  if (g->gc.state == GCSsweepstring || newmask >= LJ_MAX_STRTAB-1)
+    return;
+
+  newtab = lj_mem_newvec(L, newmask+1, GCRef);
+  memset(newtab, 0, (newmask+1)*sizeof(GCRef));
+
+#if LUAJIT_SECURITY_STRHASH
+  /* Check which chains need secondary hashes. */
+  if (g->str.second) {
+    int newsecond = 0;
+    /* Compute primary chain lengths. */
+    for (i = g->str.mask; i != ~(MSize)0; i--) {
+      GCobj *o = (GCobj *)(gcrefu(oldtab[i]) & ~(uintptr_t)1);
+      while (o) {
+	GCstr *s = gco2str(o);
+	MSize hash = s->hashalg ? hash_sparse(g->str.seed, strdata(s), s->len) :
+				  s->hash;
+	hash &= newmask;
+	setgcrefp(newtab[hash], gcrefu(newtab[hash]) + 1);
+	o = gcnext(o);
+      }
+    }
+    /* Mark secondary chains. */
+    for (i = newmask; i != ~(MSize)0; i--) {
+      int secondary = gcrefu(newtab[i]) > LJ_STR_MAXCOLL;
+      newsecond |= secondary;
+      setgcrefp(newtab[i], secondary);
+    }
+    g->str.second = newsecond;
+  }
+#endif
+
+  /* Reinsert all strings from the old table into the new table. */
+  for (i = g->str.mask; i != ~(MSize)0; i--) {
+    GCobj *o = (GCobj *)(gcrefu(oldtab[i]) & ~(uintptr_t)1);
+    while (o) {
+      GCobj *next = gcnext(o);
+      GCstr *s = gco2str(o);
+      MSize hash = s->hash;
+#if LUAJIT_SECURITY_STRHASH
+      uintptr_t u;
+      if (LJ_LIKELY(!s->hashalg)) {  /* String hashed with primary hash. */
+	hash &= newmask;
+	u = gcrefu(newtab[hash]);
+	if (LJ_UNLIKELY(u & 1)) {  /* Switch string to secondary hash. */
+	  s->hash = hash = hash_dense(g->str.seed, s->hash, strdata(s), s->len);
+	  s->hashalg = 1;
+	  hash &= newmask;
+	  u = gcrefu(newtab[hash]);
+	}
+      } else {  /* String hashed with secondary hash. */
+	MSize shash = hash_sparse(g->str.seed, strdata(s), s->len);
+	u = gcrefu(newtab[shash & newmask]);
+	if (u & 1) {
+	  hash &= newmask;
+	  u = gcrefu(newtab[hash]);
+	} else {  /* Revert string back to primary hash. */
+	  s->hash = shash;
+	  s->hashalg = 0;
+	  hash = (shash & newmask);
+	}
+      }
+      /* NOBARRIER: The string table is a GC root. */
+      setgcrefp(o->gch.nextgc, (u & ~(uintptr_t)1));
+      setgcrefp(newtab[hash], ((uintptr_t)o | (u & 1)));
+#else
+      hash &= newmask;
+      /* NOBARRIER: The string table is a GC root. */
+      setgcrefr(o->gch.nextgc, newtab[hash]);
+      setgcref(newtab[hash], o);
+#endif
+      o = next;
+    }
+  }
+
+  /* Free old table and replace with new table. */
+  lj_str_freetab(g);
+  g->str.tab = newtab;
+  g->str.mask = newmask;
+}
+
+#if LUAJIT_SECURITY_STRHASH
+/* Rehash and rechain all strings in a chain. */
+static LJ_NOINLINE GCstr *lj_str_rehash_chain(lua_State *L, StrHash hashc,
+					      const char *str, MSize len)
+{
+  global_State *g = G(L);
+  int ow = g->gc.state == GCSsweepstring ? otherwhite(g) : 0;  /* Sweeping? */
+  GCRef *strtab = g->str.tab;
+  MSize strmask = g->str.mask;
+  GCobj *o = gcref(strtab[hashc & strmask]);
+  setgcrefp(strtab[hashc & strmask], (void *)((uintptr_t)1));
+  g->str.second = 1;
+  while (o) {
+    uintptr_t u;
+    GCobj *next = gcnext(o);
+    GCstr *s = gco2str(o);
+    StrHash hash;
+    if (ow) {  /* Must sweep while rechaining. */
+      if (((o->gch.marked ^ LJ_GC_WHITES) & ow)) {  /* String alive? */
+	lj_assertG(!isdead(g, o) || (o->gch.marked & LJ_GC_FIXED),
+		   "sweep of undead string");
+	makewhite(g, o);
+      } else {  /* Free dead string. */
+	lj_assertG(isdead(g, o) || ow == LJ_GC_SFIXED,
+		   "sweep of unlive string");
+	lj_str_free(g, s);
+	o = next;
+	continue;
+      }
+    }
+    hash = s->hash;
+    if (!s->hashalg) {  /* Rehash with secondary hash. */
+      hash = hash_dense(g->str.seed, hash, strdata(s), s->len);
+      s->hash = hash;
+      s->hashalg = 1;
+    }
+    /* Rechain. */
+    hash &= strmask;
+    u = gcrefu(strtab[hash]);
+    setgcrefp(o->gch.nextgc, (u & ~(uintptr_t)1));
+    setgcrefp(strtab[hash], ((uintptr_t)o | (u & 1)));
+    o = next;
+  }
+  /* Try to insert the pending string again. */
+  return lj_str_new(L, str, len);
+}
+#endif
+
+/* Reseed String ID from PRNG after random interval < 2^bits. */
+#if LUAJIT_SECURITY_STRID == 1
+#define STRID_RESEED_INTERVAL	8
+#elif LUAJIT_SECURITY_STRID == 2
+#define STRID_RESEED_INTERVAL	4
+#elif LUAJIT_SECURITY_STRID >= 3
+#define STRID_RESEED_INTERVAL	0
+#endif
+
+/* Allocate a new string and add to string interning table. */
+static GCstr *lj_str_alloc(lua_State *L, const char *str, MSize len,
+			   StrHash hash, int hashalg)
+{
+  GCstr *s = lj_mem_newt(L, lj_str_size(len), GCstr);
+  global_State *g = G(L);
+  uintptr_t u;
+  newwhite(g, s);
+  s->gct = ~LJ_TSTR;
+  s->len = len;
+  s->hash = hash;
+#ifndef STRID_RESEED_INTERVAL
+  s->sid = g->str.id++;
+#elif STRID_RESEED_INTERVAL
+  if (!g->str.idreseed--) {
+    uint64_t r = lj_prng_u64(&g->prng);
+    g->str.id = (StrID)r;
+    g->str.idreseed = (uint8_t)(r >> (64 - STRID_RESEED_INTERVAL));
+  }
+  s->sid = g->str.id++;
+#else
+  s->sid = (StrID)lj_prng_u64(&g->prng);
+#endif
+  s->reserved = 0;
+  s->hashalg = (uint8_t)hashalg;
+  /* Clear last 4 bytes of allocated memory. Implies zero-termination, too. */
+  *(uint32_t *)(strdatawr(s)+(len & ~(MSize)3)) = 0;
+  memcpy(strdatawr(s), str, len);
+  /* Add to string hash table. */
+  hash &= g->str.mask;
+  u = gcrefu(g->str.tab[hash]);
+  setgcrefp(s->nextgc, (u & ~(uintptr_t)1));
+  /* NOBARRIER: The string table is a GC root. */
+  setgcrefp(g->str.tab[hash], ((uintptr_t)s | (u & 1)));
+  if (g->str.num++ > g->str.mask)  /* Allow a 100% load factor. */
+    lj_str_resize(L, (g->str.mask<<1)+1);  /* Grow string table. */
+  return s;  /* Return newly interned string. */
+}
+
+/* Intern a string and return string object. */
+GCstr *lj_str_new(lua_State *L, const char *str, size_t lenx)
+{
+  global_State *g = G(L);
+  if (lenx-1 < LJ_MAX_STR-1) {
+    MSize len = (MSize)lenx;
+    StrHash hash = hash_sparse(g->str.seed, str, len);
+    MSize coll = 0;
+    int hashalg = 0;
+    /* Check if the string has already been interned. */
+    GCobj *o = gcref(g->str.tab[hash & g->str.mask]);
+#if LUAJIT_SECURITY_STRHASH
+    if (LJ_UNLIKELY((uintptr_t)o & 1)) {  /* Secondary hash for this chain? */
+      hashalg = 1;
+      hash = hash_dense(g->str.seed, hash, str, len);
+      o = (GCobj *)(gcrefu(g->str.tab[hash & g->str.mask]) & ~(uintptr_t)1);
+    }
+#endif
+    while (o != NULL) {
+      GCstr *sx = gco2str(o);
+      if (sx->hash == hash && sx->len == len) {
+	if (memcmp(str, strdata(sx), len) == 0) {
+	  if (isdead(g, o)) flipwhite(o);  /* Resurrect if dead. */
+	  return sx;  /* Return existing string. */
+	}
+	coll++;
+      }
+      coll++;
+      o = gcnext(o);
+    }
+#if LUAJIT_SECURITY_STRHASH
+    /* Rehash chain if there are too many collisions. */
+    if (LJ_UNLIKELY(coll > LJ_STR_MAXCOLL) && !hashalg) {
+      return lj_str_rehash_chain(L, hash, str, len);
+    }
+#endif
+    /* Otherwise allocate a new string. */
+    return lj_str_alloc(L, str, len, hash, hashalg);
+  } else {
+    if (lenx)
+      lj_err_msg(L, LJ_ERR_STROV);
+    return &g->strempty;
+  }
+}
+
+void LJ_FASTCALL lj_str_free(global_State *g, GCstr *s)
+{
+  g->str.num--;
+  lj_mem_free(g, s, lj_str_size(s->len));
+}
+
+void LJ_FASTCALL lj_str_init(lua_State *L)
+{
+  global_State *g = G(L);
+  g->str.seed = lj_prng_u64(&g->prng);
+  lj_str_resize(L, LJ_MIN_STRTAB-1);
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_str.h b/libs/luajit-cmake/luajit/src/lj_str.h
new file mode 100644
index 0000000..28edb5a
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_str.h
@@ -0,0 +1,31 @@
+/*
+** String handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_STR_H
+#define _LJ_STR_H
+
+#include <stdarg.h>
+
+#include "lj_obj.h"
+
+/* String helpers. */
+LJ_FUNC int32_t LJ_FASTCALL lj_str_cmp(GCstr *a, GCstr *b);
+LJ_FUNC const char *lj_str_find(const char *s, const char *f,
+				MSize slen, MSize flen);
+LJ_FUNC int lj_str_haspattern(GCstr *s);
+
+/* String interning. */
+LJ_FUNC void lj_str_resize(lua_State *L, MSize newmask);
+LJ_FUNCA GCstr *lj_str_new(lua_State *L, const char *str, size_t len);
+LJ_FUNC void LJ_FASTCALL lj_str_free(global_State *g, GCstr *s);
+LJ_FUNC void LJ_FASTCALL lj_str_init(lua_State *L);
+#define lj_str_freetab(g) \
+  (lj_mem_freevec(g, g->str.tab, g->str.mask+1, GCRef))
+
+#define lj_str_newz(L, s)	(lj_str_new(L, s, strlen(s)))
+#define lj_str_newlit(L, s)	(lj_str_new(L, "" s, sizeof(s)-1))
+#define lj_str_size(len)	(sizeof(GCstr) + (((len)+4) & ~(MSize)3))
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_strfmt.c b/libs/luajit-cmake/luajit/src/lj_strfmt.c
new file mode 100644
index 0000000..5c80829
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_strfmt.c
@@ -0,0 +1,606 @@
+/*
+** String formatting.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include <stdio.h>
+
+#define lj_strfmt_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_meta.h"
+#include "lj_state.h"
+#include "lj_char.h"
+#include "lj_strfmt.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#endif
+#include "lj_lib.h"
+
+/* -- Format parser ------------------------------------------------------- */
+
+static const uint8_t strfmt_map[('x'-'A')+1] = {
+  STRFMT_A,0,0,0,STRFMT_E,STRFMT_F,STRFMT_G,0,0,0,0,0,0,
+  0,0,0,0,0,0,0,0,0,0,STRFMT_X,0,0,
+  0,0,0,0,0,0,
+  STRFMT_A,0,STRFMT_C,STRFMT_D,STRFMT_E,STRFMT_F,STRFMT_G,0,STRFMT_I,0,0,0,0,
+  0,STRFMT_O,STRFMT_P,STRFMT_Q,0,STRFMT_S,0,STRFMT_U,0,0,STRFMT_X
+};
+
+SFormat LJ_FASTCALL lj_strfmt_parse(FormatState *fs)
+{
+  const uint8_t *p = fs->p, *e = fs->e;
+  fs->str = (const char *)p;
+  for (; p < e; p++) {
+    if (*p == '%') {  /* Escape char? */
+      if (p[1] == '%') {  /* '%%'? */
+	fs->p = ++p+1;
+	goto retlit;
+      } else {
+	SFormat sf = 0;
+	uint32_t c;
+	if (p != (const uint8_t *)fs->str)
+	  break;
+	for (p++; (uint32_t)*p - ' ' <= (uint32_t)('0' - ' '); p++) {
+	  /* Parse flags. */
+	  if (*p == '-') sf |= STRFMT_F_LEFT;
+	  else if (*p == '+') sf |= STRFMT_F_PLUS;
+	  else if (*p == '0') sf |= STRFMT_F_ZERO;
+	  else if (*p == ' ') sf |= STRFMT_F_SPACE;
+	  else if (*p == '#') sf |= STRFMT_F_ALT;
+	  else break;
+	}
+	if ((uint32_t)*p - '0' < 10) {  /* Parse width. */
+	  uint32_t width = (uint32_t)*p++ - '0';
+	  if ((uint32_t)*p - '0' < 10)
+	    width = (uint32_t)*p++ - '0' + width*10;
+	  sf |= (width << STRFMT_SH_WIDTH);
+	}
+	if (*p == '.') {  /* Parse precision. */
+	  uint32_t prec = 0;
+	  p++;
+	  if ((uint32_t)*p - '0' < 10) {
+	    prec = (uint32_t)*p++ - '0';
+	    if ((uint32_t)*p - '0' < 10)
+	      prec = (uint32_t)*p++ - '0' + prec*10;
+	  }
+	  sf |= ((prec+1) << STRFMT_SH_PREC);
+	}
+	/* Parse conversion. */
+	c = (uint32_t)*p - 'A';
+	if (LJ_LIKELY(c <= (uint32_t)('x' - 'A'))) {
+	  uint32_t sx = strfmt_map[c];
+	  if (sx) {
+	    fs->p = p+1;
+	    return (sf | sx | ((c & 0x20) ? 0 : STRFMT_F_UPPER));
+	  }
+	}
+	/* Return error location. */
+	if (*p >= 32) p++;
+	fs->len = (MSize)(p - (const uint8_t *)fs->str);
+	fs->p = fs->e;
+	return STRFMT_ERR;
+      }
+    }
+  }
+  fs->p = p;
+retlit:
+  fs->len = (MSize)(p - (const uint8_t *)fs->str);
+  return fs->len ? STRFMT_LIT : STRFMT_EOF;
+}
+
+/* -- Raw conversions ----------------------------------------------------- */
+
+#define WINT_R(x, sh, sc) \
+  { uint32_t d = (x*(((1<<sh)+sc-1)/sc))>>sh; x -= d*sc; *p++ = (char)('0'+d); }
+
+/* Write integer to buffer. */
+char * LJ_FASTCALL lj_strfmt_wint(char *p, int32_t k)
+{
+  uint32_t u = (uint32_t)k;
+  if (k < 0) { u = (uint32_t)-k; *p++ = '-'; }
+  if (u < 10000) {
+    if (u < 10) goto dig1;
+    if (u < 100) goto dig2;
+    if (u < 1000) goto dig3;
+  } else {
+    uint32_t v = u / 10000; u -= v * 10000;
+    if (v < 10000) {
+      if (v < 10) goto dig5;
+      if (v < 100) goto dig6;
+      if (v < 1000) goto dig7;
+    } else {
+      uint32_t w = v / 10000; v -= w * 10000;
+      if (w >= 10) WINT_R(w, 10, 10)
+      *p++ = (char)('0'+w);
+    }
+    WINT_R(v, 23, 1000)
+    dig7: WINT_R(v, 12, 100)
+    dig6: WINT_R(v, 10, 10)
+    dig5: *p++ = (char)('0'+v);
+  }
+  WINT_R(u, 23, 1000)
+  dig3: WINT_R(u, 12, 100)
+  dig2: WINT_R(u, 10, 10)
+  dig1: *p++ = (char)('0'+u);
+  return p;
+}
+#undef WINT_R
+
+/* Write pointer to buffer. */
+char * LJ_FASTCALL lj_strfmt_wptr(char *p, const void *v)
+{
+  ptrdiff_t x = (ptrdiff_t)v;
+  MSize i, n = STRFMT_MAXBUF_PTR;
+  if (x == 0) {
+    *p++ = 'N'; *p++ = 'U'; *p++ = 'L'; *p++ = 'L';
+    return p;
+  }
+#if LJ_64
+  /* Shorten output for 64 bit pointers. */
+  n = 2+2*4+((x >> 32) ? 2+2*(lj_fls((uint32_t)(x >> 32))>>3) : 0);
+#endif
+  p[0] = '0';
+  p[1] = 'x';
+  for (i = n-1; i >= 2; i--, x >>= 4)
+    p[i] = "0123456789abcdef"[(x & 15)];
+  return p+n;
+}
+
+/* Write ULEB128 to buffer. */
+char * LJ_FASTCALL lj_strfmt_wuleb128(char *p, uint32_t v)
+{
+  for (; v >= 0x80; v >>= 7)
+    *p++ = (char)((v & 0x7f) | 0x80);
+  *p++ = (char)v;
+  return p;
+}
+
+/* Return string or write number to tmp buffer and return pointer to start. */
+const char *lj_strfmt_wstrnum(lua_State *L, cTValue *o, MSize *lenp)
+{
+  SBuf *sb;
+  if (tvisstr(o)) {
+    *lenp = strV(o)->len;
+    return strVdata(o);
+  } else if (tvisbuf(o)) {
+    SBufExt *sbx = bufV(o);
+    *lenp = sbufxlen(sbx);
+    return sbx->r;
+  } else if (tvisint(o)) {
+    sb = lj_strfmt_putint(lj_buf_tmp_(L), intV(o));
+  } else if (tvisnum(o)) {
+    sb = lj_strfmt_putfnum(lj_buf_tmp_(L), STRFMT_G14, o->n);
+  } else {
+    return NULL;
+  }
+  *lenp = sbuflen(sb);
+  return sb->b;
+}
+
+/* -- Unformatted conversions to buffer ----------------------------------- */
+
+/* Add integer to buffer. */
+SBuf * LJ_FASTCALL lj_strfmt_putint(SBuf *sb, int32_t k)
+{
+  sb->w = lj_strfmt_wint(lj_buf_more(sb, STRFMT_MAXBUF_INT), k);
+  return sb;
+}
+
+#if LJ_HASJIT
+/* Add number to buffer. */
+SBuf * LJ_FASTCALL lj_strfmt_putnum(SBuf *sb, cTValue *o)
+{
+  return lj_strfmt_putfnum(sb, STRFMT_G14, o->n);
+}
+#endif
+
+SBuf * LJ_FASTCALL lj_strfmt_putptr(SBuf *sb, const void *v)
+{
+  sb->w = lj_strfmt_wptr(lj_buf_more(sb, STRFMT_MAXBUF_PTR), v);
+  return sb;
+}
+
+/* Add quoted string to buffer. */
+static SBuf *strfmt_putquotedlen(SBuf *sb, const char *s, MSize len)
+{
+  lj_buf_putb(sb, '"');
+  while (len--) {
+    uint32_t c = (uint32_t)(uint8_t)*s++;
+    char *w = lj_buf_more(sb, 4);
+    if (c == '"' || c == '\\' || c == '\n') {
+      *w++ = '\\';
+    } else if (lj_char_iscntrl(c)) {  /* This can only be 0-31 or 127. */
+      uint32_t d;
+      *w++ = '\\';
+      if (c >= 100 || lj_char_isdigit((uint8_t)*s)) {
+	*w++ = (char)('0'+(c >= 100)); if (c >= 100) c -= 100;
+	goto tens;
+      } else if (c >= 10) {
+      tens:
+	d = (c * 205) >> 11; c -= d * 10; *w++ = (char)('0'+d);
+      }
+      c += '0';
+    }
+    *w++ = (char)c;
+    sb->w = w;
+  }
+  lj_buf_putb(sb, '"');
+  return sb;
+}
+
+#if LJ_HASJIT
+SBuf * LJ_FASTCALL lj_strfmt_putquoted(SBuf *sb, GCstr *str)
+{
+  return strfmt_putquotedlen(sb, strdata(str), str->len);
+}
+#endif
+
+/* -- Formatted conversions to buffer ------------------------------------- */
+
+/* Add formatted char to buffer. */
+SBuf *lj_strfmt_putfchar(SBuf *sb, SFormat sf, int32_t c)
+{
+  MSize width = STRFMT_WIDTH(sf);
+  char *w = lj_buf_more(sb, width > 1 ? width : 1);
+  if ((sf & STRFMT_F_LEFT)) *w++ = (char)c;
+  while (width-- > 1) *w++ = ' ';
+  if (!(sf & STRFMT_F_LEFT)) *w++ = (char)c;
+  sb->w = w;
+  return sb;
+}
+
+/* Add formatted string to buffer. */
+static SBuf *strfmt_putfstrlen(SBuf *sb, SFormat sf, const char *s, MSize len)
+{
+  MSize width = STRFMT_WIDTH(sf);
+  char *w;
+  if (len > STRFMT_PREC(sf)) len = STRFMT_PREC(sf);
+  w = lj_buf_more(sb, width > len ? width : len);
+  if ((sf & STRFMT_F_LEFT)) w = lj_buf_wmem(w, s, len);
+  while (width-- > len) *w++ = ' ';
+  if (!(sf & STRFMT_F_LEFT)) w = lj_buf_wmem(w, s, len);
+  sb->w = w;
+  return sb;
+}
+
+#if LJ_HASJIT
+SBuf *lj_strfmt_putfstr(SBuf *sb, SFormat sf, GCstr *str)
+{
+  return strfmt_putfstrlen(sb, sf, strdata(str), str->len);
+}
+#endif
+
+/* Add formatted signed/unsigned integer to buffer. */
+SBuf *lj_strfmt_putfxint(SBuf *sb, SFormat sf, uint64_t k)
+{
+  char buf[STRFMT_MAXBUF_XINT], *q = buf + sizeof(buf), *w;
+#ifdef LUA_USE_ASSERT
+  char *ws;
+#endif
+  MSize prefix = 0, len, prec, pprec, width, need;
+
+  /* Figure out signed prefixes. */
+  if (STRFMT_TYPE(sf) == STRFMT_INT) {
+    if ((int64_t)k < 0) {
+      k = (uint64_t)-(int64_t)k;
+      prefix = 256 + '-';
+    } else if ((sf & STRFMT_F_PLUS)) {
+      prefix = 256 + '+';
+    } else if ((sf & STRFMT_F_SPACE)) {
+      prefix = 256 + ' ';
+    }
+  }
+
+  /* Convert number and store to fixed-size buffer in reverse order. */
+  prec = STRFMT_PREC(sf);
+  if ((int32_t)prec >= 0) sf &= ~STRFMT_F_ZERO;
+  if (k == 0) {  /* Special-case zero argument. */
+    if (prec != 0 ||
+	(sf & (STRFMT_T_OCT|STRFMT_F_ALT)) == (STRFMT_T_OCT|STRFMT_F_ALT))
+      *--q = '0';
+  } else if (!(sf & (STRFMT_T_HEX|STRFMT_T_OCT))) {  /* Decimal. */
+    uint32_t k2;
+    while ((k >> 32)) { *--q = (char)('0' + k % 10); k /= 10; }
+    k2 = (uint32_t)k;
+    do { *--q = (char)('0' + k2 % 10); k2 /= 10; } while (k2);
+  } else if ((sf & STRFMT_T_HEX)) {  /* Hex. */
+    const char *hexdig = (sf & STRFMT_F_UPPER) ? "0123456789ABCDEF" :
+						 "0123456789abcdef";
+    do { *--q = hexdig[(k & 15)]; k >>= 4; } while (k);
+    if ((sf & STRFMT_F_ALT)) prefix = 512 + ((sf & STRFMT_F_UPPER) ? 'X' : 'x');
+  } else {  /* Octal. */
+    do { *--q = (char)('0' + (uint32_t)(k & 7)); k >>= 3; } while (k);
+    if ((sf & STRFMT_F_ALT)) *--q = '0';
+  }
+
+  /* Calculate sizes. */
+  len = (MSize)(buf + sizeof(buf) - q);
+  if ((int32_t)len >= (int32_t)prec) prec = len;
+  width = STRFMT_WIDTH(sf);
+  pprec = prec + (prefix >> 8);
+  need = width > pprec ? width : pprec;
+  w = lj_buf_more(sb, need);
+#ifdef LUA_USE_ASSERT
+  ws = w;
+#endif
+
+  /* Format number with leading/trailing whitespace and zeros. */
+  if ((sf & (STRFMT_F_LEFT|STRFMT_F_ZERO)) == 0)
+    while (width-- > pprec) *w++ = ' ';
+  if (prefix) {
+    if ((char)prefix >= 'X') *w++ = '0';
+    *w++ = (char)prefix;
+  }
+  if ((sf & (STRFMT_F_LEFT|STRFMT_F_ZERO)) == STRFMT_F_ZERO)
+    while (width-- > pprec) *w++ = '0';
+  while (prec-- > len) *w++ = '0';
+  while (q < buf + sizeof(buf)) *w++ = *q++;  /* Add number itself. */
+  if ((sf & STRFMT_F_LEFT))
+    while (width-- > pprec) *w++ = ' ';
+
+  lj_assertX(need == (MSize)(w - ws), "miscalculated format size");
+  sb->w = w;
+  return sb;
+}
+
+/* Add number formatted as signed integer to buffer. */
+SBuf *lj_strfmt_putfnum_int(SBuf *sb, SFormat sf, lua_Number n)
+{
+  int64_t k = (int64_t)n;
+  if (checki32(k) && sf == STRFMT_INT)
+    return lj_strfmt_putint(sb, (int32_t)k);  /* Shortcut for plain %d. */
+  else
+    return lj_strfmt_putfxint(sb, sf, (uint64_t)k);
+}
+
+/* Add number formatted as unsigned integer to buffer. */
+SBuf *lj_strfmt_putfnum_uint(SBuf *sb, SFormat sf, lua_Number n)
+{
+  int64_t k;
+  if (n >= 9223372036854775808.0)
+    k = (int64_t)(n - 18446744073709551616.0);
+  else
+    k = (int64_t)n;
+  return lj_strfmt_putfxint(sb, sf, (uint64_t)k);
+}
+
+/* Format stack arguments to buffer. */
+int lj_strfmt_putarg(lua_State *L, SBuf *sb, int arg, int retry)
+{
+  int narg = (int)(L->top - L->base);
+  GCstr *fmt = lj_lib_checkstr(L, arg);
+  FormatState fs;
+  SFormat sf;
+  lj_strfmt_init(&fs, strdata(fmt), fmt->len);
+  while ((sf = lj_strfmt_parse(&fs)) != STRFMT_EOF) {
+    if (sf == STRFMT_LIT) {
+      lj_buf_putmem(sb, fs.str, fs.len);
+    } else if (sf == STRFMT_ERR) {
+      lj_err_callerv(L, LJ_ERR_STRFMT,
+		     strdata(lj_str_new(L, fs.str, fs.len)));
+    } else {
+      TValue *o = &L->base[arg++];
+      if (arg > narg)
+	lj_err_arg(L, arg, LJ_ERR_NOVAL);
+      switch (STRFMT_TYPE(sf)) {
+      case STRFMT_INT:
+	if (tvisint(o)) {
+	  int32_t k = intV(o);
+	  if (sf == STRFMT_INT)
+	    lj_strfmt_putint(sb, k);  /* Shortcut for plain %d. */
+	  else
+	    lj_strfmt_putfxint(sb, sf, k);
+	  break;
+	}
+#if LJ_HASFFI
+	if (tviscdata(o)) {
+	  GCcdata *cd = cdataV(o);
+	  if (cd->ctypeid == CTID_INT64 || cd->ctypeid == CTID_UINT64) {
+	    lj_strfmt_putfxint(sb, sf, *(uint64_t *)cdataptr(cd));
+	    break;
+	  }
+	}
+#endif
+	lj_strfmt_putfnum_int(sb, sf, lj_lib_checknum(L, arg));
+	break;
+      case STRFMT_UINT:
+	if (tvisint(o)) {
+	  lj_strfmt_putfxint(sb, sf, intV(o));
+	  break;
+	}
+#if LJ_HASFFI
+	if (tviscdata(o)) {
+	  GCcdata *cd = cdataV(o);
+	  if (cd->ctypeid == CTID_INT64 || cd->ctypeid == CTID_UINT64) {
+	    lj_strfmt_putfxint(sb, sf, *(uint64_t *)cdataptr(cd));
+	    break;
+	  }
+	}
+#endif
+	lj_strfmt_putfnum_uint(sb, sf, lj_lib_checknum(L, arg));
+	break;
+      case STRFMT_NUM:
+	lj_strfmt_putfnum(sb, sf, lj_lib_checknum(L, arg));
+	break;
+      case STRFMT_STR: {
+	MSize len;
+	const char *s;
+	cTValue *mo;
+	if (LJ_UNLIKELY(!tvisstr(o) && !tvisbuf(o)) && retry >= 0 &&
+	    !tvisnil(mo = lj_meta_lookup(L, o, MM_tostring))) {
+	  /* Call __tostring metamethod once. */
+	  copyTV(L, L->top++, mo);
+	  copyTV(L, L->top++, o);
+	  lua_call(L, 1, 1);
+	  o = &L->base[arg-1];  /* Stack may have been reallocated. */
+	  copyTV(L, o, --L->top);  /* Replace inline for retry. */
+	  if (retry < 2) {  /* Global buffer may have been overwritten. */
+	    retry = 1;
+	    break;
+	  }
+	}
+	if (LJ_LIKELY(tvisstr(o))) {
+	  len = strV(o)->len;
+	  s = strVdata(o);
+#if LJ_HASBUFFER
+	} else if (tvisbuf(o)) {
+	  SBufExt *sbx = bufV(o);
+	  if (sbx == (SBufExt *)sb) lj_err_arg(L, arg+1, LJ_ERR_BUFFER_SELF);
+	  len = sbufxlen(sbx);
+	  s = sbx->r;
+#endif
+	} else {
+	  GCstr *str = lj_strfmt_obj(L, o);
+	  len = str->len;
+	  s = strdata(str);
+	}
+	if ((sf & STRFMT_T_QUOTED))
+	  strfmt_putquotedlen(sb, s, len);  /* No formatting. */
+	else
+	  strfmt_putfstrlen(sb, sf, s, len);
+	break;
+	}
+      case STRFMT_CHAR:
+	lj_strfmt_putfchar(sb, sf, lj_lib_checkint(L, arg));
+	break;
+      case STRFMT_PTR:  /* No formatting. */
+	lj_strfmt_putptr(sb, lj_obj_ptr(G(L), o));
+	break;
+      default:
+	lj_assertL(0, "bad string format type");
+	break;
+      }
+    }
+  }
+  return retry;
+}
+
+/* -- Conversions to strings ---------------------------------------------- */
+
+/* Convert integer to string. */
+GCstr * LJ_FASTCALL lj_strfmt_int(lua_State *L, int32_t k)
+{
+  char buf[STRFMT_MAXBUF_INT];
+  MSize len = (MSize)(lj_strfmt_wint(buf, k) - buf);
+  return lj_str_new(L, buf, len);
+}
+
+/* Convert integer or number to string. */
+GCstr * LJ_FASTCALL lj_strfmt_number(lua_State *L, cTValue *o)
+{
+  return tvisint(o) ? lj_strfmt_int(L, intV(o)) : lj_strfmt_num(L, o);
+}
+
+#if LJ_HASJIT
+/* Convert char value to string. */
+GCstr * LJ_FASTCALL lj_strfmt_char(lua_State *L, int c)
+{
+  char buf[1];
+  buf[0] = c;
+  return lj_str_new(L, buf, 1);
+}
+#endif
+
+/* Raw conversion of object to string. */
+GCstr * LJ_FASTCALL lj_strfmt_obj(lua_State *L, cTValue *o)
+{
+  if (tvisstr(o)) {
+    return strV(o);
+  } else if (tvisnumber(o)) {
+    return lj_strfmt_number(L, o);
+  } else if (tvisnil(o)) {
+    return lj_str_newlit(L, "nil");
+  } else if (tvisfalse(o)) {
+    return lj_str_newlit(L, "false");
+  } else if (tvistrue(o)) {
+    return lj_str_newlit(L, "true");
+  } else {
+    char buf[8+2+2+16], *p = buf;
+    p = lj_buf_wmem(p, lj_typename(o), (MSize)strlen(lj_typename(o)));
+    *p++ = ':'; *p++ = ' ';
+    if (tvisfunc(o) && isffunc(funcV(o))) {
+      p = lj_buf_wmem(p, "builtin#", 8);
+      p = lj_strfmt_wint(p, funcV(o)->c.ffid);
+    } else {
+      p = lj_strfmt_wptr(p, lj_obj_ptr(G(L), o));
+    }
+    return lj_str_new(L, buf, (size_t)(p - buf));
+  }
+}
+
+/* -- Internal string formatting ------------------------------------------ */
+
+/*
+** These functions are only used for lua_pushfstring(), lua_pushvfstring()
+** and for internal string formatting (e.g. error messages). Caveat: unlike
+** string.format(), only a limited subset of formats and flags are supported!
+**
+** LuaJIT has support for a couple more formats than Lua 5.1/5.2:
+** - %d %u %o %x with full formatting, 32 bit integers only.
+** - %f and other FP formats are really %.14g.
+** - %s %c %p without formatting.
+*/
+
+/* Push formatted message as a string object to Lua stack. va_list variant. */
+const char *lj_strfmt_pushvf(lua_State *L, const char *fmt, va_list argp)
+{
+  SBuf *sb = lj_buf_tmp_(L);
+  FormatState fs;
+  SFormat sf;
+  GCstr *str;
+  lj_strfmt_init(&fs, fmt, (MSize)strlen(fmt));
+  while ((sf = lj_strfmt_parse(&fs)) != STRFMT_EOF) {
+    switch (STRFMT_TYPE(sf)) {
+    case STRFMT_LIT:
+      lj_buf_putmem(sb, fs.str, fs.len);
+      break;
+    case STRFMT_INT:
+      lj_strfmt_putfxint(sb, sf, va_arg(argp, int32_t));
+      break;
+    case STRFMT_UINT:
+      lj_strfmt_putfxint(sb, sf, va_arg(argp, uint32_t));
+      break;
+    case STRFMT_NUM:
+      lj_strfmt_putfnum(sb, STRFMT_G14, va_arg(argp, lua_Number));
+      break;
+    case STRFMT_STR: {
+      const char *s = va_arg(argp, char *);
+      if (s == NULL) s = "(null)";
+      lj_buf_putmem(sb, s, (MSize)strlen(s));
+      break;
+      }
+    case STRFMT_CHAR:
+      lj_buf_putb(sb, va_arg(argp, int));
+      break;
+    case STRFMT_PTR:
+      lj_strfmt_putptr(sb, va_arg(argp, void *));
+      break;
+    case STRFMT_ERR:
+    default:
+      lj_buf_putb(sb, '?');
+      lj_assertL(0, "bad string format near offset %d", fs.len);
+      break;
+    }
+  }
+  str = lj_buf_str(L, sb);
+  setstrV(L, L->top, str);
+  incr_top(L);
+  return strdata(str);
+}
+
+/* Push formatted message as a string object to Lua stack. Vararg variant. */
+const char *lj_strfmt_pushf(lua_State *L, const char *fmt, ...)
+{
+  const char *msg;
+  va_list argp;
+  va_start(argp, fmt);
+  msg = lj_strfmt_pushvf(L, fmt, argp);
+  va_end(argp);
+  return msg;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_strfmt.h b/libs/luajit-cmake/luajit/src/lj_strfmt.h
new file mode 100644
index 0000000..a452960
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_strfmt.h
@@ -0,0 +1,131 @@
+/*
+** String formatting.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_STRFMT_H
+#define _LJ_STRFMT_H
+
+#include "lj_obj.h"
+
+typedef uint32_t SFormat;  /* Format indicator. */
+
+/* Format parser state. */
+typedef struct FormatState {
+  const uint8_t *p;	/* Current format string pointer. */
+  const uint8_t *e;	/* End of format string. */
+  const char *str;	/* Returned literal string. */
+  MSize len;		/* Size of literal string. */
+} FormatState;
+
+/* Format types (max. 16). */
+typedef enum FormatType {
+  STRFMT_EOF, STRFMT_ERR, STRFMT_LIT,
+  STRFMT_INT, STRFMT_UINT, STRFMT_NUM, STRFMT_STR, STRFMT_CHAR, STRFMT_PTR
+} FormatType;
+
+/* Format subtypes (bits are reused). */
+#define STRFMT_T_HEX	0x0010	/* STRFMT_UINT */
+#define STRFMT_T_OCT	0x0020	/* STRFMT_UINT */
+#define STRFMT_T_FP_A	0x0000	/* STRFMT_NUM */
+#define STRFMT_T_FP_E	0x0010	/* STRFMT_NUM */
+#define STRFMT_T_FP_F	0x0020	/* STRFMT_NUM */
+#define STRFMT_T_FP_G	0x0030	/* STRFMT_NUM */
+#define STRFMT_T_QUOTED	0x0010	/* STRFMT_STR */
+
+/* Format flags. */
+#define STRFMT_F_LEFT	0x0100
+#define STRFMT_F_PLUS	0x0200
+#define STRFMT_F_ZERO	0x0400
+#define STRFMT_F_SPACE	0x0800
+#define STRFMT_F_ALT	0x1000
+#define STRFMT_F_UPPER	0x2000
+
+/* Format indicator fields. */
+#define STRFMT_SH_WIDTH	16
+#define STRFMT_SH_PREC	24
+
+#define STRFMT_TYPE(sf)		((FormatType)((sf) & 15))
+#define STRFMT_WIDTH(sf)	(((sf) >> STRFMT_SH_WIDTH) & 255u)
+#define STRFMT_PREC(sf)		((((sf) >> STRFMT_SH_PREC) & 255u) - 1u)
+#define STRFMT_FP(sf)		(((sf) >> 4) & 3)
+
+/* Formats for conversion characters. */
+#define STRFMT_A	(STRFMT_NUM|STRFMT_T_FP_A)
+#define STRFMT_C	(STRFMT_CHAR)
+#define STRFMT_D	(STRFMT_INT)
+#define STRFMT_E	(STRFMT_NUM|STRFMT_T_FP_E)
+#define STRFMT_F	(STRFMT_NUM|STRFMT_T_FP_F)
+#define STRFMT_G	(STRFMT_NUM|STRFMT_T_FP_G)
+#define STRFMT_I	STRFMT_D
+#define STRFMT_O	(STRFMT_UINT|STRFMT_T_OCT)
+#define STRFMT_P	(STRFMT_PTR)
+#define STRFMT_Q	(STRFMT_STR|STRFMT_T_QUOTED)
+#define STRFMT_S	(STRFMT_STR)
+#define STRFMT_U	(STRFMT_UINT)
+#define STRFMT_X	(STRFMT_UINT|STRFMT_T_HEX)
+#define STRFMT_G14	(STRFMT_G | ((14+1) << STRFMT_SH_PREC))
+
+/* Maximum buffer sizes for conversions. */
+#define STRFMT_MAXBUF_XINT	(1+22)  /* '0' prefix + uint64_t in octal. */
+#define STRFMT_MAXBUF_INT	(1+10)  /* Sign + int32_t in decimal. */
+#define STRFMT_MAXBUF_NUM	32  /* Must correspond with STRFMT_G14. */
+#define STRFMT_MAXBUF_PTR	(2+2*sizeof(ptrdiff_t))  /* "0x" + hex ptr. */
+
+/* Format parser. */
+LJ_FUNC SFormat LJ_FASTCALL lj_strfmt_parse(FormatState *fs);
+
+static LJ_AINLINE void lj_strfmt_init(FormatState *fs, const char *p, MSize len)
+{
+  fs->p = (const uint8_t *)p;
+  fs->e = (const uint8_t *)p + len;
+  /* Must be NUL-terminated. May have NULs inside, too. */
+  lj_assertX(*fs->e == 0, "format not NUL-terminated");
+}
+
+/* Raw conversions. */
+LJ_FUNC char * LJ_FASTCALL lj_strfmt_wint(char *p, int32_t k);
+LJ_FUNC char * LJ_FASTCALL lj_strfmt_wptr(char *p, const void *v);
+LJ_FUNC char * LJ_FASTCALL lj_strfmt_wuleb128(char *p, uint32_t v);
+LJ_FUNC const char *lj_strfmt_wstrnum(lua_State *L, cTValue *o, MSize *lenp);
+
+/* Unformatted conversions to buffer. */
+LJ_FUNC SBuf * LJ_FASTCALL lj_strfmt_putint(SBuf *sb, int32_t k);
+#if LJ_HASJIT
+LJ_FUNC SBuf * LJ_FASTCALL lj_strfmt_putnum(SBuf *sb, cTValue *o);
+#endif
+LJ_FUNC SBuf * LJ_FASTCALL lj_strfmt_putptr(SBuf *sb, const void *v);
+#if LJ_HASJIT
+LJ_FUNC SBuf * LJ_FASTCALL lj_strfmt_putquoted(SBuf *sb, GCstr *str);
+#endif
+
+/* Formatted conversions to buffer. */
+LJ_FUNC SBuf *lj_strfmt_putfxint(SBuf *sb, SFormat sf, uint64_t k);
+LJ_FUNC SBuf *lj_strfmt_putfnum_int(SBuf *sb, SFormat sf, lua_Number n);
+LJ_FUNC SBuf *lj_strfmt_putfnum_uint(SBuf *sb, SFormat sf, lua_Number n);
+LJ_FUNC SBuf *lj_strfmt_putfnum(SBuf *sb, SFormat, lua_Number n);
+LJ_FUNC SBuf *lj_strfmt_putfchar(SBuf *sb, SFormat, int32_t c);
+#if LJ_HASJIT
+LJ_FUNC SBuf *lj_strfmt_putfstr(SBuf *sb, SFormat, GCstr *str);
+#endif
+LJ_FUNC int lj_strfmt_putarg(lua_State *L, SBuf *sb, int arg, int retry);
+
+/* Conversions to strings. */
+LJ_FUNC GCstr * LJ_FASTCALL lj_strfmt_int(lua_State *L, int32_t k);
+LJ_FUNCA GCstr * LJ_FASTCALL lj_strfmt_num(lua_State *L, cTValue *o);
+LJ_FUNCA GCstr * LJ_FASTCALL lj_strfmt_number(lua_State *L, cTValue *o);
+#if LJ_HASJIT
+LJ_FUNC GCstr * LJ_FASTCALL lj_strfmt_char(lua_State *L, int c);
+#endif
+LJ_FUNC GCstr * LJ_FASTCALL lj_strfmt_obj(lua_State *L, cTValue *o);
+
+/* Internal string formatting. */
+LJ_FUNC const char *lj_strfmt_pushvf(lua_State *L, const char *fmt,
+				     va_list argp);
+LJ_FUNC const char *lj_strfmt_pushf(lua_State *L, const char *fmt, ...)
+#if defined(__GNUC__) || defined(__clang__)
+  __attribute__ ((format (printf, 2, 3)))
+#endif
+  ;
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_strfmt_num.c b/libs/luajit-cmake/luajit/src/lj_strfmt_num.c
new file mode 100644
index 0000000..3c60695
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_strfmt_num.c
@@ -0,0 +1,592 @@
+/*
+** String formatting for floating-point numbers.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+** Contributed by Peter Cawley.
+*/
+
+#include <stdio.h>
+
+#define lj_strfmt_num_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_buf.h"
+#include "lj_str.h"
+#include "lj_strfmt.h"
+
+/* -- Precomputed tables -------------------------------------------------- */
+
+/* Rescale factors to push the exponent of a number towards zero. */
+#define RESCALE_EXPONENTS(P, N) \
+  P(308), P(289), P(270), P(250), P(231), P(212), P(193), P(173), P(154), \
+  P(135), P(115), P(96), P(77), P(58), P(38), P(0), P(0), P(0), N(39), N(58), \
+  N(77), N(96), N(116), N(135), N(154), N(174), N(193), N(212), N(231), \
+  N(251), N(270), N(289)
+
+#define ONE_E_P(X) 1e+0 ## X
+#define ONE_E_N(X) 1e-0 ## X
+static const int16_t rescale_e[] = { RESCALE_EXPONENTS(-, +) };
+static const double rescale_n[] = { RESCALE_EXPONENTS(ONE_E_P, ONE_E_N) };
+#undef ONE_E_N
+#undef ONE_E_P
+
+/*
+** For p in range -70 through 57, this table encodes pairs (m, e) such that
+** 4*2^p <= (uint8_t)m*10^e, and is the smallest value for which this holds.
+*/
+static const int8_t four_ulp_m_e[] = {
+  34, -21, 68, -21, 14, -20, 28, -20, 55, -20, 2, -19, 3, -19, 5, -19, 9, -19,
+  -82, -18, 35, -18, 7, -17, -117, -17, 28, -17, 56, -17, 112, -16, -33, -16,
+  45, -16, 89, -16, -78, -15, 36, -15, 72, -15, -113, -14, 29, -14, 57, -14,
+  114, -13, -28, -13, 46, -13, 91, -12, -74, -12, 37, -12, 73, -12, 15, -11, 3,
+  -11, 59, -11, 2, -10, 3, -10, 5, -10, 1, -9, -69, -9, 38, -9, 75, -9, 15, -7,
+  3, -7, 6, -7, 12, -6, -17, -7, 48, -7, 96, -7, -65, -6, 39, -6, 77, -6, -103,
+  -5, 31, -5, 62, -5, 123, -4, -11, -4, 49, -4, 98, -4, -60, -3, 4, -2, 79, -3,
+  16, -2, 32, -2, 63, -2, 2, -1, 25, 0, 5, 1, 1, 2, 2, 2, 4, 2, 8, 2, 16, 2,
+  32, 2, 64, 2, -128, 2, 26, 2, 52, 2, 103, 3, -51, 3, 41, 4, 82, 4, -92, 4,
+  33, 4, 66, 4, -124, 5, 27, 5, 53, 5, 105, 6, 21, 6, 42, 6, 84, 6, 17, 7, 34,
+  7, 68, 7, 2, 8, 3, 8, 6, 8, 108, 9, -41, 9, 43, 10, 86, 9, -84, 10, 35, 10,
+  69, 10, -118, 11, 28, 11, 55, 12, 11, 13, 22, 13, 44, 13, 88, 13, -80, 13,
+  36, 13, 71, 13, -115, 14, 29, 14, 57, 14, 113, 15, -30, 15, 46, 15, 91, 15,
+  19, 16, 37, 16, 73, 16, 2, 17, 3, 17, 6, 17
+};
+
+/* min(2^32-1, 10^e-1) for e in range 0 through 10 */
+static uint32_t ndigits_dec_threshold[] = {
+  0, 9U, 99U, 999U, 9999U, 99999U, 999999U,
+  9999999U, 99999999U, 999999999U, 0xffffffffU
+};
+
+/* -- Helper functions ---------------------------------------------------- */
+
+/* Compute the number of digits in the decimal representation of x. */
+static MSize ndigits_dec(uint32_t x)
+{
+  MSize t = ((lj_fls(x | 1) * 77) >> 8) + 1; /* 2^8/77 is roughly log2(10) */
+  return t + (x > ndigits_dec_threshold[t]);
+}
+
+#define WINT_R(x, sh, sc) \
+  { uint32_t d = (x*(((1<<sh)+sc-1)/sc))>>sh; x -= d*sc; *p++ = (char)('0'+d); }
+
+/* Write 9-digit unsigned integer to buffer. */
+static char *lj_strfmt_wuint9(char *p, uint32_t u)
+{
+  uint32_t v = u / 10000, w;
+  u -= v * 10000;
+  w = v / 10000;
+  v -= w * 10000;
+  *p++ = (char)('0'+w);
+  WINT_R(v, 23, 1000)
+  WINT_R(v, 12, 100)
+  WINT_R(v, 10, 10)
+  *p++ = (char)('0'+v);
+  WINT_R(u, 23, 1000)
+  WINT_R(u, 12, 100)
+  WINT_R(u, 10, 10)
+  *p++ = (char)('0'+u);
+  return p;
+}
+#undef WINT_R
+
+/* -- Extended precision arithmetic --------------------------------------- */
+
+/*
+** The "nd" format is a fixed-precision decimal representation for numbers. It
+** consists of up to 64 uint32_t values, with each uint32_t storing a value
+** in the range [0, 1e9). A number in "nd" format consists of three variables:
+**
+**  uint32_t nd[64];
+**  uint32_t ndlo;
+**  uint32_t ndhi;
+**
+** The integral part of the number is stored in nd[0 ... ndhi], the value of
+** which is sum{i in [0, ndhi] | nd[i] * 10^(9*i)}. If the fractional part of
+** the number is zero, ndlo is zero. Otherwise, the fractional part is stored
+** in nd[ndlo ... 63], the value of which is taken to be
+** sum{i in [ndlo, 63] | nd[i] * 10^(9*(i-64))}.
+**
+** If the array part had 128 elements rather than 64, then every double would
+** have an exact representation in "nd" format. With 64 elements, all integral
+** doubles have an exact representation, and all non-integral doubles have
+** enough digits to make both %.99e and %.99f do the right thing.
+*/
+
+#if LJ_64
+#define ND_MUL2K_MAX_SHIFT	29
+#define ND_MUL2K_DIV1E9(val)	((uint32_t)((val) / 1000000000))
+#else
+#define ND_MUL2K_MAX_SHIFT	11
+#define ND_MUL2K_DIV1E9(val)	((uint32_t)((val) >> 9) / 1953125)
+#endif
+
+/* Multiply nd by 2^k and add carry_in (ndlo is assumed to be zero). */
+static uint32_t nd_mul2k(uint32_t* nd, uint32_t ndhi, uint32_t k,
+			 uint32_t carry_in, SFormat sf)
+{
+  uint32_t i, ndlo = 0, start = 1;
+  /* Performance hacks. */
+  if (k > ND_MUL2K_MAX_SHIFT*2 && STRFMT_FP(sf) != STRFMT_FP(STRFMT_T_FP_F)) {
+    start = ndhi - (STRFMT_PREC(sf) + 17) / 8;
+  }
+  /* Real logic. */
+  while (k >= ND_MUL2K_MAX_SHIFT) {
+    for (i = ndlo; i <= ndhi; i++) {
+      uint64_t val = ((uint64_t)nd[i] << ND_MUL2K_MAX_SHIFT) | carry_in;
+      carry_in = ND_MUL2K_DIV1E9(val);
+      nd[i] = (uint32_t)val - carry_in * 1000000000;
+    }
+    if (carry_in) {
+      nd[++ndhi] = carry_in; carry_in = 0;
+      if (start++ == ndlo) ++ndlo;
+    }
+    k -= ND_MUL2K_MAX_SHIFT;
+  }
+  if (k) {
+    for (i = ndlo; i <= ndhi; i++) {
+      uint64_t val = ((uint64_t)nd[i] << k) | carry_in;
+      carry_in = ND_MUL2K_DIV1E9(val);
+      nd[i] = (uint32_t)val - carry_in * 1000000000;
+    }
+    if (carry_in) nd[++ndhi] = carry_in;
+  }
+  return ndhi;
+}
+
+/* Divide nd by 2^k (ndlo is assumed to be zero). */
+static uint32_t nd_div2k(uint32_t* nd, uint32_t ndhi, uint32_t k, SFormat sf)
+{
+  uint32_t ndlo = 0, stop1 = ~0, stop2 = ~0;
+  /* Performance hacks. */
+  if (!ndhi) {
+    if (!nd[0]) {
+      return 0;
+    } else {
+      uint32_t s = lj_ffs(nd[0]);
+      if (s >= k) { nd[0] >>= k; return 0; }
+      nd[0] >>= s; k -= s;
+    }
+  }
+  if (k > 18) {
+    if (STRFMT_FP(sf) == STRFMT_FP(STRFMT_T_FP_F)) {
+      stop1 = 63 - (int32_t)STRFMT_PREC(sf) / 9;
+    } else {
+      int32_t floorlog2 = ndhi * 29 + lj_fls(nd[ndhi]) - k;
+      int32_t floorlog10 = (int32_t)(floorlog2 * 0.30102999566398114);
+      stop1 = 62 + (floorlog10 - (int32_t)STRFMT_PREC(sf)) / 9;
+      stop2 = 61 + ndhi - (int32_t)STRFMT_PREC(sf) / 8;
+    }
+  }
+  /* Real logic. */
+  while (k >= 9) {
+    uint32_t i = ndhi, carry = 0;
+    for (;;) {
+      uint32_t val = nd[i];
+      nd[i] = (val >> 9) + carry;
+      carry = (val & 0x1ff) * 1953125;
+      if (i == ndlo) break;
+      i = (i - 1) & 0x3f;
+    }
+    if (ndlo != stop1 && ndlo != stop2) {
+      if (carry) { ndlo = (ndlo - 1) & 0x3f; nd[ndlo] = carry; }
+      if (!nd[ndhi]) { ndhi = (ndhi - 1) & 0x3f; stop2--; }
+    } else if (!nd[ndhi]) {
+      if (ndhi != ndlo) { ndhi = (ndhi - 1) & 0x3f; stop2--; }
+      else return ndlo;
+    }
+    k -= 9;
+  }
+  if (k) {
+    uint32_t mask = (1U << k) - 1, mul = 1000000000 >> k, i = ndhi, carry = 0;
+    for (;;) {
+      uint32_t val = nd[i];
+      nd[i] = (val >> k) + carry;
+      carry = (val & mask) * mul;
+      if (i == ndlo) break;
+      i = (i - 1) & 0x3f;
+    }
+    if (carry) { ndlo = (ndlo - 1) & 0x3f; nd[ndlo] = carry; }
+  }
+  return ndlo;
+}
+
+/* Add m*10^e to nd (assumes ndlo <= e/9 <= ndhi and 0 <= m <= 9). */
+static uint32_t nd_add_m10e(uint32_t* nd, uint32_t ndhi, uint8_t m, int32_t e)
+{
+  uint32_t i, carry;
+  if (e >= 0) {
+    i = (uint32_t)e/9;
+    carry = m * (ndigits_dec_threshold[e - (int32_t)i*9] + 1);
+  } else {
+    int32_t f = (e-8)/9;
+    i = (uint32_t)(64 + f);
+    carry = m * (ndigits_dec_threshold[e - f*9] + 1);
+  }
+  for (;;) {
+    uint32_t val = nd[i] + carry;
+    if (LJ_UNLIKELY(val >= 1000000000)) {
+      val -= 1000000000;
+      nd[i] = val;
+      if (LJ_UNLIKELY(i == ndhi)) {
+	ndhi = (ndhi + 1) & 0x3f;
+	nd[ndhi] = 1;
+	break;
+      }
+      carry = 1;
+      i = (i + 1) & 0x3f;
+    } else {
+      nd[i] = val;
+      break;
+    }
+  }
+  return ndhi;
+}
+
+/* Test whether two "nd" values are equal in their most significant digits. */
+static int nd_similar(uint32_t* nd, uint32_t ndhi, uint32_t* ref, MSize hilen,
+		      MSize prec)
+{
+  char nd9[9], ref9[9];
+  if (hilen <= prec) {
+    if (LJ_UNLIKELY(nd[ndhi] != *ref)) return 0;
+    prec -= hilen; ref--; ndhi = (ndhi - 1) & 0x3f;
+    if (prec >= 9) {
+      if (LJ_UNLIKELY(nd[ndhi] != *ref)) return 0;
+      prec -= 9; ref--; ndhi = (ndhi - 1) & 0x3f;
+    }
+  } else {
+    prec -= hilen - 9;
+  }
+  lj_assertX(prec < 9, "bad precision %d", prec);
+  lj_strfmt_wuint9(nd9, nd[ndhi]);
+  lj_strfmt_wuint9(ref9, *ref);
+  return !memcmp(nd9, ref9, prec) && (nd9[prec] < '5') == (ref9[prec] < '5');
+}
+
+/* -- Formatted conversions to buffer ------------------------------------- */
+
+/* Write formatted floating-point number to either sb or p. */
+static char *lj_strfmt_wfnum(SBuf *sb, SFormat sf, lua_Number n, char *p)
+{
+  MSize width = STRFMT_WIDTH(sf), prec = STRFMT_PREC(sf), len;
+  TValue t;
+  t.n = n;
+  if (LJ_UNLIKELY((t.u32.hi << 1) >= 0xffe00000)) {
+    /* Handle non-finite values uniformly for %a, %e, %f, %g. */
+    int prefix = 0, ch = (sf & STRFMT_F_UPPER) ? 0x202020 : 0;
+    if (((t.u32.hi & 0x000fffff) | t.u32.lo) != 0) {
+      ch ^= ('n' << 16) | ('a' << 8) | 'n';
+      if ((sf & STRFMT_F_SPACE)) prefix = ' ';
+    } else {
+      ch ^= ('i' << 16) | ('n' << 8) | 'f';
+      if ((t.u32.hi & 0x80000000)) prefix = '-';
+      else if ((sf & STRFMT_F_PLUS)) prefix = '+';
+      else if ((sf & STRFMT_F_SPACE)) prefix = ' ';
+    }
+    len = 3 + (prefix != 0);
+    if (!p) p = lj_buf_more(sb, width > len ? width : len);
+    if (!(sf & STRFMT_F_LEFT)) while (width-- > len) *p++ = ' ';
+    if (prefix) *p++ = prefix;
+    *p++ = (char)(ch >> 16); *p++ = (char)(ch >> 8); *p++ = (char)ch;
+  } else if (STRFMT_FP(sf) == STRFMT_FP(STRFMT_T_FP_A)) {
+    /* %a */
+    const char *hexdig = (sf & STRFMT_F_UPPER) ? "0123456789ABCDEFPX"
+					       : "0123456789abcdefpx";
+    int32_t e = (t.u32.hi >> 20) & 0x7ff;
+    char prefix = 0, eprefix = '+';
+    if (t.u32.hi & 0x80000000) prefix = '-';
+    else if ((sf & STRFMT_F_PLUS)) prefix = '+';
+    else if ((sf & STRFMT_F_SPACE)) prefix = ' ';
+    t.u32.hi &= 0xfffff;
+    if (e) {
+      t.u32.hi |= 0x100000;
+      e -= 1023;
+    } else if (t.u32.lo | t.u32.hi) {
+      /* Non-zero denormal - normalise it. */
+      uint32_t shift = t.u32.hi ? 20-lj_fls(t.u32.hi) : 52-lj_fls(t.u32.lo);
+      e = -1022 - shift;
+      t.u64 <<= shift;
+    }
+    /* abs(n) == t.u64 * 2^(e - 52) */
+    /* If n != 0, bit 52 of t.u64 is set, and is the highest set bit. */
+    if ((int32_t)prec < 0) {
+      /* Default precision: use smallest precision giving exact result. */
+      prec = t.u32.lo ? 13-lj_ffs(t.u32.lo)/4 : 5-lj_ffs(t.u32.hi|0x100000)/4;
+    } else if (prec < 13) {
+      /* Precision is sufficiently low as to maybe require rounding. */
+      t.u64 += (((uint64_t)1) << (51 - prec*4));
+    }
+    if (e < 0) {
+      eprefix = '-';
+      e = -e;
+    }
+    len = 5 + ndigits_dec((uint32_t)e) + prec + (prefix != 0)
+	    + ((prec | (sf & STRFMT_F_ALT)) != 0);
+    if (!p) p = lj_buf_more(sb, width > len ? width : len);
+    if (!(sf & (STRFMT_F_LEFT | STRFMT_F_ZERO))) {
+      while (width-- > len) *p++ = ' ';
+    }
+    if (prefix) *p++ = prefix;
+    *p++ = '0';
+    *p++ = hexdig[17]; /* x or X */
+    if ((sf & (STRFMT_F_LEFT | STRFMT_F_ZERO)) == STRFMT_F_ZERO) {
+      while (width-- > len) *p++ = '0';
+    }
+    *p++ = '0' + (t.u32.hi >> 20); /* Usually '1', sometimes '0' or '2'. */
+    if ((prec | (sf & STRFMT_F_ALT))) {
+      /* Emit fractional part. */
+      char *q = p + 1 + prec;
+      *p = '.';
+      if (prec < 13) t.u64 >>= (52 - prec*4);
+      else while (prec > 13) p[prec--] = '0';
+      while (prec) { p[prec--] = hexdig[t.u64 & 15]; t.u64 >>= 4; }
+      p = q;
+    }
+    *p++ = hexdig[16]; /* p or P */
+    *p++ = eprefix; /* + or - */
+    p = lj_strfmt_wint(p, e);
+  } else {
+    /* %e or %f or %g - begin by converting n to "nd" format. */
+    uint32_t nd[64];
+    uint32_t ndhi = 0, ndlo, i;
+    int32_t e = (t.u32.hi >> 20) & 0x7ff, ndebias = 0;
+    char prefix = 0, *q;
+    if (t.u32.hi & 0x80000000) prefix = '-';
+    else if ((sf & STRFMT_F_PLUS)) prefix = '+';
+    else if ((sf & STRFMT_F_SPACE)) prefix = ' ';
+    prec += ((int32_t)prec >> 31) & 7; /* Default precision is 6. */
+    if (STRFMT_FP(sf) == STRFMT_FP(STRFMT_T_FP_G)) {
+      /* %g - decrement precision if non-zero (to make it like %e). */
+      prec--;
+      prec ^= (uint32_t)((int32_t)prec >> 31);
+    }
+    if ((sf & STRFMT_T_FP_E) && prec < 14 && n != 0) {
+      /* Precision is sufficiently low that rescaling will probably work. */
+      if ((ndebias = rescale_e[e >> 6])) {
+	t.n = n * rescale_n[e >> 6];
+	if (LJ_UNLIKELY(!e)) t.n *= 1e10, ndebias -= 10;
+	t.u64 -= 2; /* Convert 2ulp below (later we convert 2ulp above). */
+	nd[0] = 0x100000 | (t.u32.hi & 0xfffff);
+	e = ((t.u32.hi >> 20) & 0x7ff) - 1075 - (ND_MUL2K_MAX_SHIFT < 29);
+	goto load_t_lo; rescale_failed:
+	t.n = n;
+	e = (t.u32.hi >> 20) & 0x7ff;
+	ndebias = ndhi = 0;
+      }
+    }
+    nd[0] = t.u32.hi & 0xfffff;
+    if (e == 0) e++; else nd[0] |= 0x100000;
+    e -= 1043;
+    if (t.u32.lo) {
+      e -= 32 + (ND_MUL2K_MAX_SHIFT < 29); load_t_lo:
+#if ND_MUL2K_MAX_SHIFT >= 29
+      nd[0] = (nd[0] << 3) | (t.u32.lo >> 29);
+      ndhi = nd_mul2k(nd, ndhi, 29, t.u32.lo & 0x1fffffff, sf);
+#elif ND_MUL2K_MAX_SHIFT >= 11
+      ndhi = nd_mul2k(nd, ndhi, 11, t.u32.lo >> 21, sf);
+      ndhi = nd_mul2k(nd, ndhi, 11, (t.u32.lo >> 10) & 0x7ff, sf);
+      ndhi = nd_mul2k(nd, ndhi, 11, (t.u32.lo <<  1) & 0x7ff, sf);
+#else
+#error "ND_MUL2K_MAX_SHIFT too small"
+#endif
+    }
+    if (e >= 0) {
+      ndhi = nd_mul2k(nd, ndhi, (uint32_t)e, 0, sf);
+      ndlo = 0;
+    } else {
+      ndlo = nd_div2k(nd, ndhi, (uint32_t)-e, sf);
+      if (ndhi && !nd[ndhi]) ndhi--;
+    }
+    /* abs(n) == nd * 10^ndebias (for slightly loose interpretation of ==) */
+    if ((sf & STRFMT_T_FP_E)) {
+      /* %e or %g - assume %e and start by calculating nd's exponent (nde). */
+      char eprefix = '+';
+      int32_t nde = -1;
+      MSize hilen;
+      if (ndlo && !nd[ndhi]) {
+	ndhi = 64; do {} while (!nd[--ndhi]);
+	nde -= 64 * 9;
+      }
+      hilen = ndigits_dec(nd[ndhi]);
+      nde += ndhi * 9 + hilen;
+      if (ndebias) {
+	/*
+	** Rescaling was performed, but this introduced some error, and might
+	** have pushed us across a rounding boundary. We check whether this
+	** error affected the result by introducing even more error (2ulp in
+	** either direction), and seeing whether a rounding boundary was
+	** crossed. Having already converted the -2ulp case, we save off its
+	** most significant digits, convert the +2ulp case, and compare them.
+	*/
+	int32_t eidx = e + 70 + (ND_MUL2K_MAX_SHIFT < 29)
+			 + (t.u32.lo >= 0xfffffffe && !(~t.u32.hi << 12));
+	const int8_t *m_e = four_ulp_m_e + eidx * 2;
+	lj_assertG_(G(sbufL(sb)), 0 <= eidx && eidx < 128, "bad eidx %d", eidx);
+	nd[33] = nd[ndhi];
+	nd[32] = nd[(ndhi - 1) & 0x3f];
+	nd[31] = nd[(ndhi - 2) & 0x3f];
+	nd_add_m10e(nd, ndhi, (uint8_t)*m_e, m_e[1]);
+	if (LJ_UNLIKELY(!nd_similar(nd, ndhi, nd + 33, hilen, prec + 1))) {
+	  goto rescale_failed;
+	}
+      }
+      if ((int32_t)(prec - nde) < (0x3f & -(int32_t)ndlo) * 9) {
+	/* Precision is sufficiently low as to maybe require rounding. */
+	ndhi = nd_add_m10e(nd, ndhi, 5, nde - prec - 1);
+	nde += (hilen != ndigits_dec(nd[ndhi]));
+      }
+      nde += ndebias;
+      if ((sf & STRFMT_T_FP_F)) {
+	/* %g */
+	if ((int32_t)prec >= nde && nde >= -4) {
+	  if (nde < 0) ndhi = 0;
+	  prec -= nde;
+	  goto g_format_like_f;
+	} else if (!(sf & STRFMT_F_ALT) && prec && width > 5) {
+	  /* Decrease precision in order to strip trailing zeroes. */
+	  char tail[9];
+	  uint32_t maxprec = hilen - 1 + ((ndhi - ndlo) & 0x3f) * 9;
+	  if (prec >= maxprec) prec = maxprec;
+	  else ndlo = (ndhi - (((int32_t)(prec - hilen) + 9) / 9)) & 0x3f;
+	  i = prec - hilen - (((ndhi - ndlo) & 0x3f) * 9) + 10;
+	  lj_strfmt_wuint9(tail, nd[ndlo]);
+	  while (prec && tail[--i] == '0') {
+	    prec--;
+	    if (!i) {
+	      if (ndlo == ndhi) { prec = 0; break; }
+	      lj_strfmt_wuint9(tail, nd[++ndlo]);
+	      i = 9;
+	    }
+	  }
+	}
+      }
+      if (nde < 0) {
+	/* Make nde non-negative. */
+	eprefix = '-';
+	nde = -nde;
+      }
+      len = 3 + prec + (prefix != 0) + ndigits_dec((uint32_t)nde) + (nde < 10)
+	      + ((prec | (sf & STRFMT_F_ALT)) != 0);
+      if (!p) p = lj_buf_more(sb, (width > len ? width : len) + 5);
+      if (!(sf & (STRFMT_F_LEFT | STRFMT_F_ZERO))) {
+	while (width-- > len) *p++ = ' ';
+      }
+      if (prefix) *p++ = prefix;
+      if ((sf & (STRFMT_F_LEFT | STRFMT_F_ZERO)) == STRFMT_F_ZERO) {
+	while (width-- > len) *p++ = '0';
+      }
+      q = lj_strfmt_wint(p + 1, nd[ndhi]);
+      p[0] = p[1]; /* Put leading digit in the correct place. */
+      if ((prec | (sf & STRFMT_F_ALT))) {
+	/* Emit fractional part. */
+	p[1] = '.'; p += 2;
+	prec -= (MSize)(q - p); p = q; /* Account for digits already emitted. */
+	/* Then emit chunks of 9 digits (this may emit 8 digits too many). */
+	for (i = ndhi; (int32_t)prec > 0 && i != ndlo; prec -= 9) {
+	  i = (i - 1) & 0x3f;
+	  p = lj_strfmt_wuint9(p, nd[i]);
+	}
+	if ((sf & STRFMT_T_FP_F) && !(sf & STRFMT_F_ALT)) {
+	  /* %g (and not %#g) - strip trailing zeroes. */
+	  p += (int32_t)prec & ((int32_t)prec >> 31);
+	  while (p[-1] == '0') p--;
+	  if (p[-1] == '.') p--;
+	} else {
+	  /* %e (or %#g) - emit trailing zeroes. */
+	  while ((int32_t)prec > 0) { *p++ = '0'; prec--; }
+	  p += (int32_t)prec;
+	}
+      } else {
+	p++;
+      }
+      *p++ = (sf & STRFMT_F_UPPER) ? 'E' : 'e';
+      *p++ = eprefix; /* + or - */
+      if (nde < 10) *p++ = '0'; /* Always at least two digits of exponent. */
+      p = lj_strfmt_wint(p, nde);
+    } else {
+      /* %f (or, shortly, %g in %f style) */
+      if (prec < (MSize)(0x3f & -(int32_t)ndlo) * 9) {
+	/* Precision is sufficiently low as to maybe require rounding. */
+	ndhi = nd_add_m10e(nd, ndhi, 5, 0 - prec - 1);
+      }
+      g_format_like_f:
+      if ((sf & STRFMT_T_FP_E) && !(sf & STRFMT_F_ALT) && prec && width) {
+	/* Decrease precision in order to strip trailing zeroes. */
+	if (ndlo) {
+	  /* nd has a fractional part; we need to look at its digits. */
+	  char tail[9];
+	  uint32_t maxprec = (64 - ndlo) * 9;
+	  if (prec >= maxprec) prec = maxprec;
+	  else ndlo = 64 - (prec + 8) / 9;
+	  i = prec - ((63 - ndlo) * 9);
+	  lj_strfmt_wuint9(tail, nd[ndlo]);
+	  while (prec && tail[--i] == '0') {
+	    prec--;
+	    if (!i) {
+	      if (ndlo == 63) { prec = 0; break; }
+	      lj_strfmt_wuint9(tail, nd[++ndlo]);
+	      i = 9;
+	    }
+	  }
+	} else {
+	  /* nd has no fractional part, so precision goes straight to zero. */
+	  prec = 0;
+	}
+      }
+      len = ndhi * 9 + ndigits_dec(nd[ndhi]) + prec + (prefix != 0)
+		     + ((prec | (sf & STRFMT_F_ALT)) != 0);
+      if (!p) p = lj_buf_more(sb, (width > len ? width : len) + 8);
+      if (!(sf & (STRFMT_F_LEFT | STRFMT_F_ZERO))) {
+	while (width-- > len) *p++ = ' ';
+      }
+      if (prefix) *p++ = prefix;
+      if ((sf & (STRFMT_F_LEFT | STRFMT_F_ZERO)) == STRFMT_F_ZERO) {
+	while (width-- > len) *p++ = '0';
+      }
+      /* Emit integer part. */
+      p = lj_strfmt_wint(p, nd[ndhi]);
+      i = ndhi;
+      while (i) p = lj_strfmt_wuint9(p, nd[--i]);
+      if ((prec | (sf & STRFMT_F_ALT))) {
+	/* Emit fractional part. */
+	*p++ = '.';
+	/* Emit chunks of 9 digits (this may emit 8 digits too many). */
+	while ((int32_t)prec > 0 && i != ndlo) {
+	  i = (i - 1) & 0x3f;
+	  p = lj_strfmt_wuint9(p, nd[i]);
+	  prec -= 9;
+	}
+	if ((sf & STRFMT_T_FP_E) && !(sf & STRFMT_F_ALT)) {
+	  /* %g (and not %#g) - strip trailing zeroes. */
+	  p += (int32_t)prec & ((int32_t)prec >> 31);
+	  while (p[-1] == '0') p--;
+	  if (p[-1] == '.') p--;
+	} else {
+	  /* %f (or %#g) - emit trailing zeroes. */
+	  while ((int32_t)prec > 0) { *p++ = '0'; prec--; }
+	  p += (int32_t)prec;
+	}
+      }
+    }
+  }
+  if ((sf & STRFMT_F_LEFT)) while (width-- > len) *p++ = ' ';
+  return p;
+}
+
+/* Add formatted floating-point number to buffer. */
+SBuf *lj_strfmt_putfnum(SBuf *sb, SFormat sf, lua_Number n)
+{
+  sb->w = lj_strfmt_wfnum(sb, sf, n, NULL);
+  return sb;
+}
+
+/* -- Conversions to strings ---------------------------------------------- */
+
+/* Convert number to string. */
+GCstr * LJ_FASTCALL lj_strfmt_num(lua_State *L, cTValue *o)
+{
+  char buf[STRFMT_MAXBUF_NUM];
+  MSize len = (MSize)(lj_strfmt_wfnum(NULL, STRFMT_G14, o->n, buf) - buf);
+  return lj_str_new(L, buf, len);
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_strscan.c b/libs/luajit-cmake/luajit/src/lj_strscan.c
new file mode 100644
index 0000000..1d1c1c7
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_strscan.c
@@ -0,0 +1,558 @@
+/*
+** String scanning.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include <math.h>
+
+#define lj_strscan_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_char.h"
+#include "lj_strscan.h"
+
+/* -- Scanning numbers ---------------------------------------------------- */
+
+/*
+** Rationale for the builtin string to number conversion library:
+**
+** It removes a dependency on libc's strtod(), which is a true portability
+** nightmare. Mainly due to the plethora of supported OS and toolchain
+** combinations. Sadly, the various implementations
+** a) are often buggy, incomplete (no hex floats) and/or imprecise,
+** b) sometimes crash or hang on certain inputs,
+** c) return non-standard NaNs that need to be filtered out, and
+** d) fail if the locale-specific decimal separator is not a dot,
+**    which can only be fixed with atrocious workarounds.
+**
+** Also, most of the strtod() implementations are hopelessly bloated,
+** which is not just an I-cache hog, but a problem for static linkage
+** on embedded systems, too.
+**
+** OTOH the builtin conversion function is very compact. Even though it
+** does a lot more, like parsing long longs, octal or imaginary numbers
+** and returning the result in different formats:
+** a) It needs less than 3 KB (!) of machine code (on x64 with -Os),
+** b) it doesn't perform any dynamic allocation and,
+** c) it needs only around 600 bytes of stack space.
+**
+** The builtin function is faster than strtod() for typical inputs, e.g.
+** "123", "1.5" or "1e6". Arguably, it's slower for very large exponents,
+** which are not very common (this could be fixed, if needed).
+**
+** And most importantly, the builtin function is equally precise on all
+** platforms. It correctly converts and rounds any input to a double.
+** If this is not the case, please send a bug report -- but PLEASE verify
+** that the implementation you're comparing to is not the culprit!
+**
+** The implementation quickly pre-scans the entire string first and
+** handles simple integers on-the-fly. Otherwise, it dispatches to the
+** base-specific parser. Hex and octal is straightforward.
+**
+** Decimal to binary conversion uses a fixed-length circular buffer in
+** base 100. Some simple cases are handled directly. For other cases, the
+** number in the buffer is up-scaled or down-scaled until the integer part
+** is in the proper range. Then the integer part is rounded and converted
+** to a double which is finally rescaled to the result. Denormals need
+** special treatment to prevent incorrect 'double rounding'.
+*/
+
+/* Definitions for circular decimal digit buffer (base 100 = 2 digits/byte). */
+#define STRSCAN_DIG	1024
+#define STRSCAN_MAXDIG	800		/* 772 + extra are sufficient. */
+#define STRSCAN_DDIG	(STRSCAN_DIG/2)
+#define STRSCAN_DMASK	(STRSCAN_DDIG-1)
+#define STRSCAN_MAXEXP	(1 << 20)
+
+/* Helpers for circular buffer. */
+#define DNEXT(a)	(((a)+1) & STRSCAN_DMASK)
+#define DPREV(a)	(((a)-1) & STRSCAN_DMASK)
+#define DLEN(lo, hi)	((int32_t)(((lo)-(hi)) & STRSCAN_DMASK))
+
+#define casecmp(c, k)	(((c) | 0x20) == k)
+
+/* Final conversion to double. */
+static void strscan_double(uint64_t x, TValue *o, int32_t ex2, int32_t neg)
+{
+  double n;
+
+  /* Avoid double rounding for denormals. */
+  if (LJ_UNLIKELY(ex2 <= -1075 && x != 0)) {
+    /* NYI: all of this generates way too much code on 32 bit CPUs. */
+#if (defined(__GNUC__) || defined(__clang__)) && LJ_64
+    int32_t b = (int32_t)(__builtin_clzll(x)^63);
+#else
+    int32_t b = (x>>32) ? 32+(int32_t)lj_fls((uint32_t)(x>>32)) :
+			  (int32_t)lj_fls((uint32_t)x);
+#endif
+    if ((int32_t)b + ex2 <= -1023 && (int32_t)b + ex2 >= -1075) {
+      uint64_t rb = (uint64_t)1 << (-1075-ex2);
+      if ((x & rb) && ((x & (rb+rb+rb-1)))) x += rb+rb;
+      x = (x & ~(rb+rb-1));
+    }
+  }
+
+  /* Convert to double using a signed int64_t conversion, then rescale. */
+  lj_assertX((int64_t)x >= 0, "bad double conversion");
+  n = (double)(int64_t)x;
+  if (neg) n = -n;
+  if (ex2) n = ldexp(n, ex2);
+  o->n = n;
+}
+
+/* Parse hexadecimal number. */
+static StrScanFmt strscan_hex(const uint8_t *p, TValue *o,
+			      StrScanFmt fmt, uint32_t opt,
+			      int32_t ex2, int32_t neg, uint32_t dig)
+{
+  uint64_t x = 0;
+  uint32_t i;
+
+  /* Scan hex digits. */
+  for (i = dig > 16 ? 16 : dig ; i; i--, p++) {
+    uint32_t d = (*p != '.' ? *p : *++p); if (d > '9') d += 9;
+    x = (x << 4) + (d & 15);
+  }
+
+  /* Summarize rounding-effect of excess digits. */
+  for (i = 16; i < dig; i++, p++)
+    x |= ((*p != '.' ? *p : *++p) != '0'), ex2 += 4;
+
+  /* Format-specific handling. */
+  switch (fmt) {
+  case STRSCAN_INT:
+    if (!(opt & STRSCAN_OPT_TONUM) && x < 0x80000000u+neg &&
+	!(x == 0 && neg)) {
+      o->i = neg ? -(int32_t)x : (int32_t)x;
+      return STRSCAN_INT;  /* Fast path for 32 bit integers. */
+    }
+    if (!(opt & STRSCAN_OPT_C)) { fmt = STRSCAN_NUM; break; }
+    /* fallthrough */
+  case STRSCAN_U32:
+    if (dig > 8) return STRSCAN_ERROR;
+    o->i = neg ? -(int32_t)x : (int32_t)x;
+    return STRSCAN_U32;
+  case STRSCAN_I64:
+  case STRSCAN_U64:
+    if (dig > 16) return STRSCAN_ERROR;
+    o->u64 = neg ? (uint64_t)-(int64_t)x : x;
+    return fmt;
+  default:
+    break;
+  }
+
+  /* Reduce range, then convert to double. */
+  if ((x & U64x(c0000000,0000000))) { x = (x >> 2) | (x & 3); ex2 += 2; }
+  strscan_double(x, o, ex2, neg);
+  return fmt;
+}
+
+/* Parse octal number. */
+static StrScanFmt strscan_oct(const uint8_t *p, TValue *o,
+			      StrScanFmt fmt, int32_t neg, uint32_t dig)
+{
+  uint64_t x = 0;
+
+  /* Scan octal digits. */
+  if (dig > 22 || (dig == 22 && *p > '1')) return STRSCAN_ERROR;
+  while (dig-- > 0) {
+    if (!(*p >= '0' && *p <= '7')) return STRSCAN_ERROR;
+    x = (x << 3) + (*p++ & 7);
+  }
+
+  /* Format-specific handling. */
+  switch (fmt) {
+  case STRSCAN_INT:
+    if (x >= 0x80000000u+neg) fmt = STRSCAN_U32;
+    /* fallthrough */
+  case STRSCAN_U32:
+    if ((x >> 32)) return STRSCAN_ERROR;
+    o->i = neg ? -(int32_t)x : (int32_t)x;
+    break;
+  default:
+  case STRSCAN_I64:
+  case STRSCAN_U64:
+    o->u64 = neg ? (uint64_t)-(int64_t)x : x;
+    break;
+  }
+  return fmt;
+}
+
+/* Parse decimal number. */
+static StrScanFmt strscan_dec(const uint8_t *p, TValue *o,
+			      StrScanFmt fmt, uint32_t opt,
+			      int32_t ex10, int32_t neg, uint32_t dig)
+{
+  uint8_t xi[STRSCAN_DDIG], *xip = xi;
+
+  if (dig) {
+    uint32_t i = dig;
+    if (i > STRSCAN_MAXDIG) {
+      ex10 += (int32_t)(i - STRSCAN_MAXDIG);
+      i = STRSCAN_MAXDIG;
+    }
+    /* Scan unaligned leading digit. */
+    if (((ex10^i) & 1))
+      *xip++ = ((*p != '.' ? *p : *++p) & 15), i--, p++;
+    /* Scan aligned double-digits. */
+    for ( ; i > 1; i -= 2) {
+      uint32_t d = 10 * ((*p != '.' ? *p : *++p) & 15); p++;
+      *xip++ = d + ((*p != '.' ? *p : *++p) & 15); p++;
+    }
+    /* Scan and realign trailing digit. */
+    if (i) *xip++ = 10 * ((*p != '.' ? *p : *++p) & 15), ex10--, dig++, p++;
+
+    /* Summarize rounding-effect of excess digits. */
+    if (dig > STRSCAN_MAXDIG) {
+      do {
+	if ((*p != '.' ? *p : *++p) != '0') { xip[-1] |= 1; break; }
+	p++;
+      } while (--dig > STRSCAN_MAXDIG);
+      dig = STRSCAN_MAXDIG;
+    } else {  /* Simplify exponent. */
+      while (ex10 > 0 && dig <= 18) *xip++ = 0, ex10 -= 2, dig += 2;
+    }
+  } else {  /* Only got zeros. */
+    ex10 = 0;
+    xi[0] = 0;
+  }
+
+  /* Fast path for numbers in integer format (but handles e.g. 1e6, too). */
+  if (dig <= 20 && ex10 == 0) {
+    uint8_t *xis;
+    uint64_t x = xi[0];
+    double n;
+    for (xis = xi+1; xis < xip; xis++) x = x * 100 + *xis;
+    if (!(dig == 20 && (xi[0] > 18 || (int64_t)x >= 0))) {  /* No overflow? */
+      /* Format-specific handling. */
+      switch (fmt) {
+      case STRSCAN_INT:
+	if (!(opt & STRSCAN_OPT_TONUM) && x < 0x80000000u+neg) {
+	  o->i = neg ? -(int32_t)x : (int32_t)x;
+	  return STRSCAN_INT;  /* Fast path for 32 bit integers. */
+	}
+	if (!(opt & STRSCAN_OPT_C)) { fmt = STRSCAN_NUM; goto plainnumber; }
+	/* fallthrough */
+      case STRSCAN_U32:
+	if ((x >> 32) != 0) return STRSCAN_ERROR;
+	o->i = neg ? -(int32_t)x : (int32_t)x;
+	return STRSCAN_U32;
+      case STRSCAN_I64:
+      case STRSCAN_U64:
+	o->u64 = neg ? (uint64_t)-(int64_t)x : x;
+	return fmt;
+      default:
+      plainnumber:  /* Fast path for plain numbers < 2^63. */
+	if ((int64_t)x < 0) break;
+	n = (double)(int64_t)x;
+	if (neg) n = -n;
+	o->n = n;
+	return fmt;
+      }
+    }
+  }
+
+  /* Slow non-integer path. */
+  if (fmt == STRSCAN_INT) {
+    if ((opt & STRSCAN_OPT_C)) return STRSCAN_ERROR;
+    fmt = STRSCAN_NUM;
+  } else if (fmt > STRSCAN_INT) {
+    return STRSCAN_ERROR;
+  }
+  {
+    uint32_t hi = 0, lo = (uint32_t)(xip-xi);
+    int32_t ex2 = 0, idig = (int32_t)lo + (ex10 >> 1);
+
+    lj_assertX(lo > 0 && (ex10 & 1) == 0, "bad lo %d ex10 %d", lo, ex10);
+
+    /* Handle simple overflow/underflow. */
+    if (idig > 310/2) { if (neg) setminfV(o); else setpinfV(o); return fmt; }
+    else if (idig < -326/2) { o->n = neg ? -0.0 : 0.0; return fmt; }
+
+    /* Scale up until we have at least 17 or 18 integer part digits. */
+    while (idig < 9 && idig < DLEN(lo, hi)) {
+      uint32_t i, cy = 0;
+      ex2 -= 6;
+      for (i = DPREV(lo); ; i = DPREV(i)) {
+	uint32_t d = (xi[i] << 6) + cy;
+	cy = (((d >> 2) * 5243) >> 17); d = d - cy * 100;  /* Div/mod 100. */
+	xi[i] = (uint8_t)d;
+	if (i == hi) break;
+	if (d == 0 && i == DPREV(lo)) lo = i;
+      }
+      if (cy) {
+	hi = DPREV(hi);
+	if (xi[DPREV(lo)] == 0) lo = DPREV(lo);
+	else if (hi == lo) { lo = DPREV(lo); xi[DPREV(lo)] |= xi[lo]; }
+	xi[hi] = (uint8_t)cy; idig++;
+      }
+    }
+
+    /* Scale down until no more than 17 or 18 integer part digits remain. */
+    while (idig > 9) {
+      uint32_t i = hi, cy = 0;
+      ex2 += 6;
+      do {
+	cy += xi[i];
+	xi[i] = (cy >> 6);
+	cy = 100 * (cy & 0x3f);
+	if (xi[i] == 0 && i == hi) hi = DNEXT(hi), idig--;
+	i = DNEXT(i);
+      } while (i != lo);
+      while (cy) {
+	if (hi == lo) { xi[DPREV(lo)] |= 1; break; }
+	xi[lo] = (cy >> 6); lo = DNEXT(lo);
+	cy = 100 * (cy & 0x3f);
+      }
+    }
+
+    /* Collect integer part digits and convert to rescaled double. */
+    {
+      uint64_t x = xi[hi];
+      uint32_t i;
+      for (i = DNEXT(hi); --idig > 0 && i != lo; i = DNEXT(i))
+	x = x * 100 + xi[i];
+      if (i == lo) {
+	while (--idig >= 0) x = x * 100;
+      } else {  /* Gather round bit from remaining digits. */
+	x <<= 1; ex2--;
+	do {
+	  if (xi[i]) { x |= 1; break; }
+	  i = DNEXT(i);
+	} while (i != lo);
+      }
+      strscan_double(x, o, ex2, neg);
+    }
+  }
+  return fmt;
+}
+
+/* Parse binary number. */
+static StrScanFmt strscan_bin(const uint8_t *p, TValue *o,
+			      StrScanFmt fmt, uint32_t opt,
+			      int32_t ex2, int32_t neg, uint32_t dig)
+{
+  uint64_t x = 0;
+  uint32_t i;
+
+  if (ex2 || dig > 64) return STRSCAN_ERROR;
+
+  /* Scan binary digits. */
+  for (i = dig; i; i--, p++) {
+    if ((*p & ~1) != '0') return STRSCAN_ERROR;
+    x = (x << 1) | (*p & 1);
+  }
+
+  /* Format-specific handling. */
+  switch (fmt) {
+  case STRSCAN_INT:
+    if (!(opt & STRSCAN_OPT_TONUM) && x < 0x80000000u+neg) {
+      o->i = neg ? -(int32_t)x : (int32_t)x;
+      return STRSCAN_INT;  /* Fast path for 32 bit integers. */
+    }
+    if (!(opt & STRSCAN_OPT_C)) { fmt = STRSCAN_NUM; break; }
+    /* fallthrough */
+  case STRSCAN_U32:
+    if (dig > 32) return STRSCAN_ERROR;
+    o->i = neg ? -(int32_t)x : (int32_t)x;
+    return STRSCAN_U32;
+  case STRSCAN_I64:
+  case STRSCAN_U64:
+    o->u64 = neg ? (uint64_t)-(int64_t)x : x;
+    return fmt;
+  default:
+    break;
+  }
+
+  /* Reduce range, then convert to double. */
+  if ((x & U64x(c0000000,0000000))) { x = (x >> 2) | (x & 3); ex2 += 2; }
+  strscan_double(x, o, ex2, neg);
+  return fmt;
+}
+
+/* Scan string containing a number. Returns format. Returns value in o. */
+StrScanFmt lj_strscan_scan(const uint8_t *p, MSize len, TValue *o,
+			   uint32_t opt)
+{
+  int32_t neg = 0;
+  const uint8_t *pe = p + len;
+
+  /* Remove leading space, parse sign and non-numbers. */
+  if (LJ_UNLIKELY(!lj_char_isdigit(*p))) {
+    while (lj_char_isspace(*p)) p++;
+    if (*p == '+' || *p == '-') neg = (*p++ == '-');
+    if (LJ_UNLIKELY(*p >= 'A')) {  /* Parse "inf", "infinity" or "nan". */
+      TValue tmp;
+      setnanV(&tmp);
+      if (casecmp(p[0],'i') && casecmp(p[1],'n') && casecmp(p[2],'f')) {
+	if (neg) setminfV(&tmp); else setpinfV(&tmp);
+	p += 3;
+	if (casecmp(p[0],'i') && casecmp(p[1],'n') && casecmp(p[2],'i') &&
+	    casecmp(p[3],'t') && casecmp(p[4],'y')) p += 5;
+      } else if (casecmp(p[0],'n') && casecmp(p[1],'a') && casecmp(p[2],'n')) {
+	p += 3;
+      }
+      while (lj_char_isspace(*p)) p++;
+      if (*p || p < pe) return STRSCAN_ERROR;
+      o->u64 = tmp.u64;
+      return STRSCAN_NUM;
+    }
+  }
+
+  /* Parse regular number. */
+  {
+    StrScanFmt fmt = STRSCAN_INT;
+    int cmask = LJ_CHAR_DIGIT;
+    int base = (opt & STRSCAN_OPT_C) && *p == '0' ? 0 : 10;
+    const uint8_t *sp, *dp = NULL;
+    uint32_t dig = 0, hasdig = 0, x = 0;
+    int32_t ex = 0;
+
+    /* Determine base and skip leading zeros. */
+    if (LJ_UNLIKELY(*p <= '0')) {
+      if (*p == '0') {
+	if (casecmp(p[1], 'x'))
+	  base = 16, cmask = LJ_CHAR_XDIGIT, p += 2;
+	else if (casecmp(p[1], 'b'))
+	  base = 2, cmask = LJ_CHAR_DIGIT, p += 2;
+      }
+      for ( ; ; p++) {
+	if (*p == '0') {
+	  hasdig = 1;
+	} else if (*p == '.') {
+	  if (dp) return STRSCAN_ERROR;
+	  dp = p;
+	} else {
+	  break;
+	}
+      }
+    }
+
+    /* Preliminary digit and decimal point scan. */
+    for (sp = p; ; p++) {
+      if (LJ_LIKELY(lj_char_isa(*p, cmask))) {
+	x = x * 10 + (*p & 15);  /* For fast path below. */
+	dig++;
+      } else if (*p == '.') {
+	if (dp) return STRSCAN_ERROR;
+	dp = p;
+      } else {
+	break;
+      }
+    }
+    if (!(hasdig | dig)) return STRSCAN_ERROR;
+
+    /* Handle decimal point. */
+    if (dp) {
+      if (base == 2) return STRSCAN_ERROR;
+      fmt = STRSCAN_NUM;
+      if (dig) {
+	ex = (int32_t)(dp-(p-1)); dp = p-1;
+	while (ex < 0 && *dp-- == '0') ex++, dig--;  /* Skip trailing zeros. */
+	if (ex <= -STRSCAN_MAXEXP) return STRSCAN_ERROR;
+	if (base == 16) ex *= 4;
+      }
+    }
+
+    /* Parse exponent. */
+    if (base >= 10 && casecmp(*p, (uint32_t)(base == 16 ? 'p' : 'e'))) {
+      uint32_t xx;
+      int negx = 0;
+      fmt = STRSCAN_NUM; p++;
+      if (*p == '+' || *p == '-') negx = (*p++ == '-');
+      if (!lj_char_isdigit(*p)) return STRSCAN_ERROR;
+      xx = (*p++ & 15);
+      while (lj_char_isdigit(*p)) {
+	xx = xx * 10 + (*p & 15);
+	if (xx >= STRSCAN_MAXEXP) return STRSCAN_ERROR;
+	p++;
+      }
+      ex += negx ? -(int32_t)xx : (int32_t)xx;
+    }
+
+    /* Parse suffix. */
+    if (*p) {
+      /* I (IMAG), U (U32), LL (I64), ULL/LLU (U64), L (long), UL/LU (ulong). */
+      /* NYI: f (float). Not needed until cp_number() handles non-integers. */
+      if (casecmp(*p, 'i')) {
+	if (!(opt & STRSCAN_OPT_IMAG)) return STRSCAN_ERROR;
+	p++; fmt = STRSCAN_IMAG;
+      } else if (fmt == STRSCAN_INT) {
+	if (casecmp(*p, 'u')) p++, fmt = STRSCAN_U32;
+	if (casecmp(*p, 'l')) {
+	  p++;
+	  if (casecmp(*p, 'l')) p++, fmt += STRSCAN_I64 - STRSCAN_INT;
+	  else if (!(opt & STRSCAN_OPT_C)) return STRSCAN_ERROR;
+	  else if (sizeof(long) == 8) fmt += STRSCAN_I64 - STRSCAN_INT;
+	}
+	if (casecmp(*p, 'u') && (fmt == STRSCAN_INT || fmt == STRSCAN_I64))
+	  p++, fmt += STRSCAN_U32 - STRSCAN_INT;
+	if ((fmt == STRSCAN_U32 && !(opt & STRSCAN_OPT_C)) ||
+	    (fmt >= STRSCAN_I64 && !(opt & STRSCAN_OPT_LL)))
+	  return STRSCAN_ERROR;
+      }
+      while (lj_char_isspace(*p)) p++;
+      if (*p) return STRSCAN_ERROR;
+    }
+    if (p < pe) return STRSCAN_ERROR;
+
+    /* Fast path for decimal 32 bit integers. */
+    if (fmt == STRSCAN_INT && base == 10 &&
+	(dig < 10 || (dig == 10 && *sp <= '2' && x < 0x80000000u+neg))) {
+      if ((opt & STRSCAN_OPT_TONUM)) {
+	o->n = neg ? -(double)x : (double)x;
+	return STRSCAN_NUM;
+      } else if (x == 0 && neg) {
+	o->n = -0.0;
+	return STRSCAN_NUM;
+      } else {
+	o->i = neg ? -(int32_t)x : (int32_t)x;
+	return STRSCAN_INT;
+      }
+    }
+
+    /* Dispatch to base-specific parser. */
+    if (base == 0 && !(fmt == STRSCAN_NUM || fmt == STRSCAN_IMAG))
+      return strscan_oct(sp, o, fmt, neg, dig);
+    if (base == 16)
+      fmt = strscan_hex(sp, o, fmt, opt, ex, neg, dig);
+    else if (base == 2)
+      fmt = strscan_bin(sp, o, fmt, opt, ex, neg, dig);
+    else
+      fmt = strscan_dec(sp, o, fmt, opt, ex, neg, dig);
+
+    /* Try to convert number to integer, if requested. */
+    if (fmt == STRSCAN_NUM && (opt & STRSCAN_OPT_TOINT) && !tvismzero(o)) {
+      double n = o->n;
+      int32_t i = lj_num2int(n);
+      if (n == (lua_Number)i) { o->i = i; return STRSCAN_INT; }
+    }
+    return fmt;
+  }
+}
+
+int LJ_FASTCALL lj_strscan_num(GCstr *str, TValue *o)
+{
+  StrScanFmt fmt = lj_strscan_scan((const uint8_t *)strdata(str), str->len, o,
+				   STRSCAN_OPT_TONUM);
+  lj_assertX(fmt == STRSCAN_ERROR || fmt == STRSCAN_NUM, "bad scan format");
+  return (fmt != STRSCAN_ERROR);
+}
+
+#if LJ_DUALNUM
+int LJ_FASTCALL lj_strscan_number(GCstr *str, TValue *o)
+{
+  StrScanFmt fmt = lj_strscan_scan((const uint8_t *)strdata(str), str->len, o,
+				   STRSCAN_OPT_TOINT);
+  lj_assertX(fmt == STRSCAN_ERROR || fmt == STRSCAN_NUM || fmt == STRSCAN_INT,
+	     "bad scan format");
+  if (fmt == STRSCAN_INT) setitype(o, LJ_TISNUM);
+  return (fmt != STRSCAN_ERROR);
+}
+#endif
+
+#undef DNEXT
+#undef DPREV
+#undef DLEN
+
diff --git a/libs/luajit-cmake/luajit/src/lj_strscan.h b/libs/luajit-cmake/luajit/src/lj_strscan.h
new file mode 100644
index 0000000..8ed3154
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_strscan.h
@@ -0,0 +1,40 @@
+/*
+** String scanning.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_STRSCAN_H
+#define _LJ_STRSCAN_H
+
+#include "lj_obj.h"
+
+/* Options for accepted/returned formats. */
+#define STRSCAN_OPT_TOINT	0x01  /* Convert to int32_t, if possible. */
+#define STRSCAN_OPT_TONUM	0x02  /* Always convert to double. */
+#define STRSCAN_OPT_IMAG	0x04
+#define STRSCAN_OPT_LL		0x08
+#define STRSCAN_OPT_C		0x10
+
+/* Returned format. */
+typedef enum {
+  STRSCAN_ERROR,
+  STRSCAN_NUM, STRSCAN_IMAG,
+  STRSCAN_INT, STRSCAN_U32, STRSCAN_I64, STRSCAN_U64,
+} StrScanFmt;
+
+LJ_FUNC StrScanFmt lj_strscan_scan(const uint8_t *p, MSize len, TValue *o,
+				   uint32_t opt);
+LJ_FUNC int LJ_FASTCALL lj_strscan_num(GCstr *str, TValue *o);
+#if LJ_DUALNUM
+LJ_FUNC int LJ_FASTCALL lj_strscan_number(GCstr *str, TValue *o);
+#else
+#define lj_strscan_number(s, o)		lj_strscan_num((s), (o))
+#endif
+
+/* Check for number or convert string to number/int in-place (!). */
+static LJ_AINLINE int lj_strscan_numberobj(TValue *o)
+{
+  return tvisnumber(o) || (tvisstr(o) && lj_strscan_number(strV(o), o));
+}
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_tab.c b/libs/luajit-cmake/luajit/src/lj_tab.c
new file mode 100644
index 0000000..c3609b3
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_tab.c
@@ -0,0 +1,693 @@
+/*
+** Table handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#define lj_tab_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_tab.h"
+
+/* -- Object hashing ------------------------------------------------------ */
+
+/* Hash an arbitrary key and return its anchor position in the hash table. */
+static Node *hashkey(const GCtab *t, cTValue *key)
+{
+  lj_assertX(!tvisint(key), "attempt to hash integer");
+  if (tvisstr(key))
+    return hashstr(t, strV(key));
+  else if (tvisnum(key))
+    return hashnum(t, key);
+  else if (tvisbool(key))
+    return hashmask(t, boolV(key));
+  else
+    return hashgcref(t, key->gcr);
+  /* Only hash 32 bits of lightuserdata on a 64 bit CPU. Good enough? */
+}
+
+/* -- Table creation and destruction -------------------------------------- */
+
+/* Create new hash part for table. */
+static LJ_AINLINE void newhpart(lua_State *L, GCtab *t, uint32_t hbits)
+{
+  uint32_t hsize;
+  Node *node;
+  lj_assertL(hbits != 0, "zero hash size");
+  if (hbits > LJ_MAX_HBITS)
+    lj_err_msg(L, LJ_ERR_TABOV);
+  hsize = 1u << hbits;
+  node = lj_mem_newvec(L, hsize, Node);
+  setmref(t->node, node);
+  setfreetop(t, node, &node[hsize]);
+  t->hmask = hsize-1;
+}
+
+/*
+** Q: Why all of these copies of t->hmask, t->node etc. to local variables?
+** A: Because alias analysis for C is _really_ tough.
+**    Even state-of-the-art C compilers won't produce good code without this.
+*/
+
+/* Clear hash part of table. */
+static LJ_AINLINE void clearhpart(GCtab *t)
+{
+  uint32_t i, hmask = t->hmask;
+  Node *node = noderef(t->node);
+  lj_assertX(t->hmask != 0, "empty hash part");
+  for (i = 0; i <= hmask; i++) {
+    Node *n = &node[i];
+    setmref(n->next, NULL);
+    setnilV(&n->key);
+    setnilV(&n->val);
+  }
+}
+
+/* Clear array part of table. */
+static LJ_AINLINE void clearapart(GCtab *t)
+{
+  uint32_t i, asize = t->asize;
+  TValue *array = tvref(t->array);
+  for (i = 0; i < asize; i++)
+    setnilV(&array[i]);
+}
+
+/* Create a new table. Note: the slots are not initialized (yet). */
+static GCtab *newtab(lua_State *L, uint32_t asize, uint32_t hbits)
+{
+  GCtab *t;
+  /* First try to colocate the array part. */
+  if (LJ_MAX_COLOSIZE != 0 && asize > 0 && asize <= LJ_MAX_COLOSIZE) {
+    Node *nilnode;
+    lj_assertL((sizeof(GCtab) & 7) == 0, "bad GCtab size");
+    t = (GCtab *)lj_mem_newgco(L, sizetabcolo(asize));
+    t->gct = ~LJ_TTAB;
+    t->nomm = (uint8_t)~0;
+    t->colo = (int8_t)asize;
+    setmref(t->array, (TValue *)((char *)t + sizeof(GCtab)));
+    setgcrefnull(t->metatable);
+    t->asize = asize;
+    t->hmask = 0;
+    nilnode = &G(L)->nilnode;
+    setmref(t->node, nilnode);
+#if LJ_GC64
+    setmref(t->freetop, nilnode);
+#endif
+  } else {  /* Otherwise separately allocate the array part. */
+    Node *nilnode;
+    t = lj_mem_newobj(L, GCtab);
+    t->gct = ~LJ_TTAB;
+    t->nomm = (uint8_t)~0;
+    t->colo = 0;
+    setmref(t->array, NULL);
+    setgcrefnull(t->metatable);
+    t->asize = 0;  /* In case the array allocation fails. */
+    t->hmask = 0;
+    nilnode = &G(L)->nilnode;
+    setmref(t->node, nilnode);
+#if LJ_GC64
+    setmref(t->freetop, nilnode);
+#endif
+    if (asize > 0) {
+      if (asize > LJ_MAX_ASIZE)
+	lj_err_msg(L, LJ_ERR_TABOV);
+      setmref(t->array, lj_mem_newvec(L, asize, TValue));
+      t->asize = asize;
+    }
+  }
+  if (hbits)
+    newhpart(L, t, hbits);
+  return t;
+}
+
+/* Create a new table.
+**
+** IMPORTANT NOTE: The API differs from lua_createtable()!
+**
+** The array size is non-inclusive. E.g. asize=128 creates array slots
+** for 0..127, but not for 128. If you need slots 1..128, pass asize=129
+** (slot 0 is wasted in this case).
+**
+** The hash size is given in hash bits. hbits=0 means no hash part.
+** hbits=1 creates 2 hash slots, hbits=2 creates 4 hash slots and so on.
+*/
+GCtab *lj_tab_new(lua_State *L, uint32_t asize, uint32_t hbits)
+{
+  GCtab *t = newtab(L, asize, hbits);
+  clearapart(t);
+  if (t->hmask > 0) clearhpart(t);
+  return t;
+}
+
+/* The API of this function conforms to lua_createtable(). */
+GCtab *lj_tab_new_ah(lua_State *L, int32_t a, int32_t h)
+{
+  return lj_tab_new(L, (uint32_t)(a > 0 ? a+1 : 0), hsize2hbits(h));
+}
+
+#if LJ_HASJIT
+GCtab * LJ_FASTCALL lj_tab_new1(lua_State *L, uint32_t ahsize)
+{
+  GCtab *t = newtab(L, ahsize & 0xffffff, ahsize >> 24);
+  clearapart(t);
+  if (t->hmask > 0) clearhpart(t);
+  return t;
+}
+#endif
+
+/* Duplicate a table. */
+GCtab * LJ_FASTCALL lj_tab_dup(lua_State *L, const GCtab *kt)
+{
+  GCtab *t;
+  uint32_t asize, hmask;
+  t = newtab(L, kt->asize, kt->hmask > 0 ? lj_fls(kt->hmask)+1 : 0);
+  lj_assertL(kt->asize == t->asize && kt->hmask == t->hmask,
+	     "mismatched size of table and template");
+  t->nomm = 0;  /* Keys with metamethod names may be present. */
+  asize = kt->asize;
+  if (asize > 0) {
+    TValue *array = tvref(t->array);
+    TValue *karray = tvref(kt->array);
+    if (asize < 64) {  /* An inlined loop beats memcpy for < 512 bytes. */
+      uint32_t i;
+      for (i = 0; i < asize; i++)
+	copyTV(L, &array[i], &karray[i]);
+    } else {
+      memcpy(array, karray, asize*sizeof(TValue));
+    }
+  }
+  hmask = kt->hmask;
+  if (hmask > 0) {
+    uint32_t i;
+    Node *node = noderef(t->node);
+    Node *knode = noderef(kt->node);
+    ptrdiff_t d = (char *)node - (char *)knode;
+    setfreetop(t, node, (Node *)((char *)getfreetop(kt, knode) + d));
+    for (i = 0; i <= hmask; i++) {
+      Node *kn = &knode[i];
+      Node *n = &node[i];
+      Node *next = nextnode(kn);
+      /* Don't use copyTV here, since it asserts on a copy of a dead key. */
+      n->val = kn->val; n->key = kn->key;
+      setmref(n->next, next == NULL? next : (Node *)((char *)next + d));
+    }
+  }
+  return t;
+}
+
+/* Clear a table. */
+void LJ_FASTCALL lj_tab_clear(GCtab *t)
+{
+  clearapart(t);
+  if (t->hmask > 0) {
+    Node *node = noderef(t->node);
+    setfreetop(t, node, &node[t->hmask+1]);
+    clearhpart(t);
+  }
+}
+
+/* Free a table. */
+void LJ_FASTCALL lj_tab_free(global_State *g, GCtab *t)
+{
+  if (t->hmask > 0)
+    lj_mem_freevec(g, noderef(t->node), t->hmask+1, Node);
+  if (t->asize > 0 && LJ_MAX_COLOSIZE != 0 && t->colo <= 0)
+    lj_mem_freevec(g, tvref(t->array), t->asize, TValue);
+  if (LJ_MAX_COLOSIZE != 0 && t->colo)
+    lj_mem_free(g, t, sizetabcolo((uint32_t)t->colo & 0x7f));
+  else
+    lj_mem_freet(g, t);
+}
+
+/* -- Table resizing ------------------------------------------------------ */
+
+/* Resize a table to fit the new array/hash part sizes. */
+void lj_tab_resize(lua_State *L, GCtab *t, uint32_t asize, uint32_t hbits)
+{
+  Node *oldnode = noderef(t->node);
+  uint32_t oldasize = t->asize;
+  uint32_t oldhmask = t->hmask;
+  if (asize > oldasize) {  /* Array part grows? */
+    TValue *array;
+    uint32_t i;
+    if (asize > LJ_MAX_ASIZE)
+      lj_err_msg(L, LJ_ERR_TABOV);
+    if (LJ_MAX_COLOSIZE != 0 && t->colo > 0) {
+      /* A colocated array must be separated and copied. */
+      TValue *oarray = tvref(t->array);
+      array = lj_mem_newvec(L, asize, TValue);
+      t->colo = (int8_t)(t->colo | 0x80);  /* Mark as separated (colo < 0). */
+      for (i = 0; i < oldasize; i++)
+	copyTV(L, &array[i], &oarray[i]);
+    } else {
+      array = (TValue *)lj_mem_realloc(L, tvref(t->array),
+			  oldasize*sizeof(TValue), asize*sizeof(TValue));
+    }
+    setmref(t->array, array);
+    t->asize = asize;
+    for (i = oldasize; i < asize; i++)  /* Clear newly allocated slots. */
+      setnilV(&array[i]);
+  }
+  /* Create new (empty) hash part. */
+  if (hbits) {
+    newhpart(L, t, hbits);
+    clearhpart(t);
+  } else {
+    global_State *g = G(L);
+    setmref(t->node, &g->nilnode);
+#if LJ_GC64
+    setmref(t->freetop, &g->nilnode);
+#endif
+    t->hmask = 0;
+  }
+  if (asize < oldasize) {  /* Array part shrinks? */
+    TValue *array = tvref(t->array);
+    uint32_t i;
+    t->asize = asize;  /* Note: This 'shrinks' even colocated arrays. */
+    for (i = asize; i < oldasize; i++)  /* Reinsert old array values. */
+      if (!tvisnil(&array[i]))
+	copyTV(L, lj_tab_setinth(L, t, (int32_t)i), &array[i]);
+    /* Physically shrink only separated arrays. */
+    if (LJ_MAX_COLOSIZE != 0 && t->colo <= 0)
+      setmref(t->array, lj_mem_realloc(L, array,
+	      oldasize*sizeof(TValue), asize*sizeof(TValue)));
+  }
+  if (oldhmask > 0) {  /* Reinsert pairs from old hash part. */
+    global_State *g;
+    uint32_t i;
+    for (i = 0; i <= oldhmask; i++) {
+      Node *n = &oldnode[i];
+      if (!tvisnil(&n->val))
+	copyTV(L, lj_tab_set(L, t, &n->key), &n->val);
+    }
+    g = G(L);
+    lj_mem_freevec(g, oldnode, oldhmask+1, Node);
+  }
+}
+
+static uint32_t countint(cTValue *key, uint32_t *bins)
+{
+  lj_assertX(!tvisint(key), "bad integer key");
+  if (tvisnum(key)) {
+    lua_Number nk = numV(key);
+    int32_t k = lj_num2int(nk);
+    if ((uint32_t)k < LJ_MAX_ASIZE && nk == (lua_Number)k) {
+      bins[(k > 2 ? lj_fls((uint32_t)(k-1)) : 0)]++;
+      return 1;
+    }
+  }
+  return 0;
+}
+
+static uint32_t countarray(const GCtab *t, uint32_t *bins)
+{
+  uint32_t na, b, i;
+  if (t->asize == 0) return 0;
+  for (na = i = b = 0; b < LJ_MAX_ABITS; b++) {
+    uint32_t n, top = 2u << b;
+    TValue *array;
+    if (top >= t->asize) {
+      top = t->asize-1;
+      if (i > top)
+	break;
+    }
+    array = tvref(t->array);
+    for (n = 0; i <= top; i++)
+      if (!tvisnil(&array[i]))
+	n++;
+    bins[b] += n;
+    na += n;
+  }
+  return na;
+}
+
+static uint32_t counthash(const GCtab *t, uint32_t *bins, uint32_t *narray)
+{
+  uint32_t total, na, i, hmask = t->hmask;
+  Node *node = noderef(t->node);
+  for (total = na = 0, i = 0; i <= hmask; i++) {
+    Node *n = &node[i];
+    if (!tvisnil(&n->val)) {
+      na += countint(&n->key, bins);
+      total++;
+    }
+  }
+  *narray += na;
+  return total;
+}
+
+static uint32_t bestasize(uint32_t bins[], uint32_t *narray)
+{
+  uint32_t b, sum, na = 0, sz = 0, nn = *narray;
+  for (b = 0, sum = 0; 2*nn > (1u<<b) && sum != nn; b++)
+    if (bins[b] > 0 && 2*(sum += bins[b]) > (1u<<b)) {
+      sz = (2u<<b)+1;
+      na = sum;
+    }
+  *narray = sz;
+  return na;
+}
+
+static void rehashtab(lua_State *L, GCtab *t, cTValue *ek)
+{
+  uint32_t bins[LJ_MAX_ABITS];
+  uint32_t total, asize, na, i;
+  for (i = 0; i < LJ_MAX_ABITS; i++) bins[i] = 0;
+  asize = countarray(t, bins);
+  total = 1 + asize;
+  total += counthash(t, bins, &asize);
+  asize += countint(ek, bins);
+  na = bestasize(bins, &asize);
+  total -= na;
+  lj_tab_resize(L, t, asize, hsize2hbits(total));
+}
+
+#if LJ_HASFFI
+void lj_tab_rehash(lua_State *L, GCtab *t)
+{
+  rehashtab(L, t, niltv(L));
+}
+#endif
+
+void lj_tab_reasize(lua_State *L, GCtab *t, uint32_t nasize)
+{
+  lj_tab_resize(L, t, nasize+1, t->hmask > 0 ? lj_fls(t->hmask)+1 : 0);
+}
+
+/* -- Table getters ------------------------------------------------------- */
+
+cTValue * LJ_FASTCALL lj_tab_getinth(GCtab *t, int32_t key)
+{
+  TValue k;
+  Node *n;
+  k.n = (lua_Number)key;
+  n = hashnum(t, &k);
+  do {
+    if (tvisnum(&n->key) && n->key.n == k.n)
+      return &n->val;
+  } while ((n = nextnode(n)));
+  return NULL;
+}
+
+cTValue *lj_tab_getstr(GCtab *t, const GCstr *key)
+{
+  Node *n = hashstr(t, key);
+  do {
+    if (tvisstr(&n->key) && strV(&n->key) == key)
+      return &n->val;
+  } while ((n = nextnode(n)));
+  return NULL;
+}
+
+cTValue *lj_tab_get(lua_State *L, GCtab *t, cTValue *key)
+{
+  if (tvisstr(key)) {
+    cTValue *tv = lj_tab_getstr(t, strV(key));
+    if (tv)
+      return tv;
+  } else if (tvisint(key)) {
+    cTValue *tv = lj_tab_getint(t, intV(key));
+    if (tv)
+      return tv;
+  } else if (tvisnum(key)) {
+    lua_Number nk = numV(key);
+    int32_t k = lj_num2int(nk);
+    if (nk == (lua_Number)k) {
+      cTValue *tv = lj_tab_getint(t, k);
+      if (tv)
+	return tv;
+    } else {
+      goto genlookup;  /* Else use the generic lookup. */
+    }
+  } else if (!tvisnil(key)) {
+    Node *n;
+  genlookup:
+    n = hashkey(t, key);
+    do {
+      if (lj_obj_equal(&n->key, key))
+	return &n->val;
+    } while ((n = nextnode(n)));
+  }
+  return niltv(L);
+}
+
+/* -- Table setters ------------------------------------------------------- */
+
+/* Insert new key. Use Brent's variation to optimize the chain length. */
+TValue *lj_tab_newkey(lua_State *L, GCtab *t, cTValue *key)
+{
+  Node *n = hashkey(t, key);
+  if (!tvisnil(&n->val) || t->hmask == 0) {
+    Node *nodebase = noderef(t->node);
+    Node *collide, *freenode = getfreetop(t, nodebase);
+    lj_assertL(freenode >= nodebase && freenode <= nodebase+t->hmask+1,
+	       "bad freenode");
+    do {
+      if (freenode == nodebase) {  /* No free node found? */
+	rehashtab(L, t, key);  /* Rehash table. */
+	return lj_tab_set(L, t, key);  /* Retry key insertion. */
+      }
+    } while (!tvisnil(&(--freenode)->key));
+    setfreetop(t, nodebase, freenode);
+    lj_assertL(freenode != &G(L)->nilnode, "store to fallback hash");
+    collide = hashkey(t, &n->key);
+    if (collide != n) {  /* Colliding node not the main node? */
+      while (noderef(collide->next) != n)  /* Find predecessor. */
+	collide = nextnode(collide);
+      setmref(collide->next, freenode);  /* Relink chain. */
+      /* Copy colliding node into free node and free main node. */
+      freenode->val = n->val;
+      freenode->key = n->key;
+      freenode->next = n->next;
+      setmref(n->next, NULL);
+      setnilV(&n->val);
+      /* Rechain pseudo-resurrected string keys with colliding hashes. */
+      while (nextnode(freenode)) {
+	Node *nn = nextnode(freenode);
+	if (!tvisnil(&nn->val) && hashkey(t, &nn->key) == n) {
+	  freenode->next = nn->next;
+	  nn->next = n->next;
+	  setmref(n->next, nn);
+	  /*
+	  ** Rechaining a resurrected string key creates a new dilemma:
+	  ** Another string key may have originally been resurrected via
+	  ** _any_ of the previous nodes as a chain anchor. Including
+	  ** a node that had to be moved, which makes them unreachable.
+	  ** It's not feasible to check for all previous nodes, so rechain
+	  ** any string key that's currently in a non-main positions.
+	  */
+	  while ((nn = nextnode(freenode))) {
+	    if (!tvisnil(&nn->val)) {
+	      Node *mn = hashkey(t, &nn->key);
+	      if (mn != freenode && mn != nn) {
+		freenode->next = nn->next;
+		nn->next = mn->next;
+		setmref(mn->next, nn);
+	      } else {
+		freenode = nn;
+	      }
+	    } else {
+	      freenode = nn;
+	    }
+	  }
+	  break;
+	} else {
+	  freenode = nn;
+	}
+      }
+    } else {  /* Otherwise use free node. */
+      setmrefr(freenode->next, n->next);  /* Insert into chain. */
+      setmref(n->next, freenode);
+      n = freenode;
+    }
+  }
+  n->key.u64 = key->u64;
+  if (LJ_UNLIKELY(tvismzero(&n->key)))
+    n->key.u64 = 0;
+  lj_gc_anybarriert(L, t);
+  lj_assertL(tvisnil(&n->val), "new hash slot is not empty");
+  return &n->val;
+}
+
+TValue *lj_tab_setinth(lua_State *L, GCtab *t, int32_t key)
+{
+  TValue k;
+  Node *n;
+  k.n = (lua_Number)key;
+  n = hashnum(t, &k);
+  do {
+    if (tvisnum(&n->key) && n->key.n == k.n)
+      return &n->val;
+  } while ((n = nextnode(n)));
+  return lj_tab_newkey(L, t, &k);
+}
+
+TValue *lj_tab_setstr(lua_State *L, GCtab *t, const GCstr *key)
+{
+  TValue k;
+  Node *n = hashstr(t, key);
+  do {
+    if (tvisstr(&n->key) && strV(&n->key) == key)
+      return &n->val;
+  } while ((n = nextnode(n)));
+  setstrV(L, &k, key);
+  return lj_tab_newkey(L, t, &k);
+}
+
+TValue *lj_tab_set(lua_State *L, GCtab *t, cTValue *key)
+{
+  Node *n;
+  t->nomm = 0;  /* Invalidate negative metamethod cache. */
+  if (tvisstr(key)) {
+    return lj_tab_setstr(L, t, strV(key));
+  } else if (tvisint(key)) {
+    return lj_tab_setint(L, t, intV(key));
+  } else if (tvisnum(key)) {
+    lua_Number nk = numV(key);
+    int32_t k = lj_num2int(nk);
+    if (nk == (lua_Number)k)
+      return lj_tab_setint(L, t, k);
+    if (tvisnan(key))
+      lj_err_msg(L, LJ_ERR_NANIDX);
+    /* Else use the generic lookup. */
+  } else if (tvisnil(key)) {
+    lj_err_msg(L, LJ_ERR_NILIDX);
+  }
+  n = hashkey(t, key);
+  do {
+    if (lj_obj_equal(&n->key, key))
+      return &n->val;
+  } while ((n = nextnode(n)));
+  return lj_tab_newkey(L, t, key);
+}
+
+/* -- Table traversal ----------------------------------------------------- */
+
+/* Table traversal indexes:
+**
+** Array key index: [0 .. t->asize-1]
+** Hash key index:  [t->asize .. t->asize+t->hmask]
+** Invalid key:     ~0
+*/
+
+/* Get the successor traversal index of a key. */
+uint32_t LJ_FASTCALL lj_tab_keyindex(GCtab *t, cTValue *key)
+{
+  TValue tmp;
+  if (tvisint(key)) {
+    int32_t k = intV(key);
+    if ((uint32_t)k < t->asize)
+      return (uint32_t)k + 1;
+    setnumV(&tmp, (lua_Number)k);
+    key = &tmp;
+  } else if (tvisnum(key)) {
+    lua_Number nk = numV(key);
+    int32_t k = lj_num2int(nk);
+    if ((uint32_t)k < t->asize && nk == (lua_Number)k)
+      return (uint32_t)k + 1;
+  }
+  if (!tvisnil(key)) {
+    Node *n = hashkey(t, key);
+    do {
+      if (lj_obj_equal(&n->key, key))
+	return t->asize + (uint32_t)((n+1) - noderef(t->node));
+    } while ((n = nextnode(n)));
+    if (key->u32.hi == LJ_KEYINDEX)  /* Despecialized ITERN while running. */
+      return key->u32.lo;
+    return ~0u;  /* Invalid key to next. */
+  }
+  return 0;  /* A nil key starts the traversal. */
+}
+
+/* Get the next key/value pair of a table traversal. */
+int lj_tab_next(GCtab *t, cTValue *key, TValue *o)
+{
+  uint32_t idx = lj_tab_keyindex(t, key);  /* Find successor index of key. */
+  /* First traverse the array part. */
+  for (; idx < t->asize; idx++) {
+    cTValue *a = arrayslot(t, idx);
+    if (LJ_LIKELY(!tvisnil(a))) {
+      setintV(o, idx);
+      o[1] = *a;
+      return 1;
+    }
+  }
+  idx -= t->asize;
+  /* Then traverse the hash part. */
+  for (; idx <= t->hmask; idx++) {
+    Node *n = &noderef(t->node)[idx];
+    if (!tvisnil(&n->val)) {
+      o[0] = n->key;
+      o[1] = n->val;
+      return 1;
+    }
+  }
+  return (int32_t)idx < 0 ? -1 : 0;  /* Invalid key or end of traversal. */
+}
+
+/* -- Table length calculation -------------------------------------------- */
+
+/* Compute table length. Slow path with mixed array/hash lookups. */
+LJ_NOINLINE static MSize tab_len_slow(GCtab *t, size_t hi)
+{
+  cTValue *tv;
+  size_t lo = hi;
+  hi++;
+  /* Widening search for an upper bound. */
+  while ((tv = lj_tab_getint(t, (int32_t)hi)) && !tvisnil(tv)) {
+    lo = hi;
+    hi += hi;
+    if (hi > (size_t)(INT_MAX-2)) {  /* Punt and do a linear search. */
+      lo = 1;
+      while ((tv = lj_tab_getint(t, (int32_t)lo)) && !tvisnil(tv)) lo++;
+      return (MSize)(lo - 1);
+    }
+  }
+  /* Binary search to find a non-nil to nil transition. */
+  while (hi - lo > 1) {
+    size_t mid = (lo+hi) >> 1;
+    cTValue *tvb = lj_tab_getint(t, (int32_t)mid);
+    if (tvb && !tvisnil(tvb)) lo = mid; else hi = mid;
+  }
+  return (MSize)lo;
+}
+
+/* Compute table length. Fast path. */
+MSize LJ_FASTCALL lj_tab_len(GCtab *t)
+{
+  size_t hi = (size_t)t->asize;
+  if (hi) hi--;
+  /* In a growing array the last array element is very likely nil. */
+  if (hi > 0 && LJ_LIKELY(tvisnil(arrayslot(t, hi)))) {
+    /* Binary search to find a non-nil to nil transition in the array. */
+    size_t lo = 0;
+    while (hi - lo > 1) {
+      size_t mid = (lo+hi) >> 1;
+      if (tvisnil(arrayslot(t, mid))) hi = mid; else lo = mid;
+    }
+    return (MSize)lo;
+  }
+  /* Without a hash part, there's an implicit nil after the last element. */
+  return t->hmask ? tab_len_slow(t, hi) : (MSize)hi;
+}
+
+#if LJ_HASJIT
+/* Verify hinted table length or compute it. */
+MSize LJ_FASTCALL lj_tab_len_hint(GCtab *t, size_t hint)
+{
+  size_t asize = (size_t)t->asize;
+  cTValue *tv = arrayslot(t, hint);
+  if (LJ_LIKELY(hint+1 < asize)) {
+    if (LJ_LIKELY(!tvisnil(tv) && tvisnil(tv+1))) return (MSize)hint;
+  } else if (hint+1 <= asize && LJ_LIKELY(t->hmask == 0) && !tvisnil(tv)) {
+    return (MSize)hint;
+  }
+  return lj_tab_len(t);
+}
+#endif
+
diff --git a/libs/luajit-cmake/luajit/src/lj_tab.h b/libs/luajit-cmake/luajit/src/lj_tab.h
new file mode 100644
index 0000000..2a3f76b
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_tab.h
@@ -0,0 +1,96 @@
+/*
+** Table handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_TAB_H
+#define _LJ_TAB_H
+
+#include "lj_obj.h"
+
+/* Hash constants. Tuned using a brute force search. */
+#define HASH_BIAS	(-0x04c11db7)
+#define HASH_ROT1	14
+#define HASH_ROT2	5
+#define HASH_ROT3	13
+
+/* Scramble the bits of numbers and pointers. */
+static LJ_AINLINE uint32_t hashrot(uint32_t lo, uint32_t hi)
+{
+#if LJ_TARGET_X86ORX64
+  /* Prefer variant that compiles well for a 2-operand CPU. */
+  lo ^= hi; hi = lj_rol(hi, HASH_ROT1);
+  lo -= hi; hi = lj_rol(hi, HASH_ROT2);
+  hi ^= lo; hi -= lj_rol(lo, HASH_ROT3);
+#else
+  lo ^= hi;
+  lo = lo - lj_rol(hi, HASH_ROT1);
+  hi = lo ^ lj_rol(hi, HASH_ROT1 + HASH_ROT2);
+  hi = hi - lj_rol(lo, HASH_ROT3);
+#endif
+  return hi;
+}
+
+/* Hash values are masked with the table hash mask and used as an index. */
+static LJ_AINLINE Node *hashmask(const GCtab *t, uint32_t hash)
+{
+  Node *n = noderef(t->node);
+  return &n[hash & t->hmask];
+}
+
+/* String IDs are generated when a string is interned. */
+#define hashstr(t, s)		hashmask(t, (s)->sid)
+
+#define hashlohi(t, lo, hi)	hashmask((t), hashrot((lo), (hi)))
+#define hashnum(t, o)		hashlohi((t), (o)->u32.lo, ((o)->u32.hi << 1))
+#if LJ_GC64
+#define hashgcref(t, r) \
+  hashlohi((t), (uint32_t)gcrefu(r), (uint32_t)(gcrefu(r) >> 32))
+#else
+#define hashgcref(t, r)		hashlohi((t), gcrefu(r), gcrefu(r) + HASH_BIAS)
+#endif
+
+#define hsize2hbits(s)	((s) ? ((s)==1 ? 1 : 1+lj_fls((uint32_t)((s)-1))) : 0)
+
+LJ_FUNCA GCtab *lj_tab_new(lua_State *L, uint32_t asize, uint32_t hbits);
+LJ_FUNC GCtab *lj_tab_new_ah(lua_State *L, int32_t a, int32_t h);
+#if LJ_HASJIT
+LJ_FUNC GCtab * LJ_FASTCALL lj_tab_new1(lua_State *L, uint32_t ahsize);
+#endif
+LJ_FUNCA GCtab * LJ_FASTCALL lj_tab_dup(lua_State *L, const GCtab *kt);
+LJ_FUNC void LJ_FASTCALL lj_tab_clear(GCtab *t);
+LJ_FUNC void LJ_FASTCALL lj_tab_free(global_State *g, GCtab *t);
+#if LJ_HASFFI
+LJ_FUNC void lj_tab_rehash(lua_State *L, GCtab *t);
+#endif
+LJ_FUNC void lj_tab_resize(lua_State *L, GCtab *t, uint32_t asize, uint32_t hbits);
+LJ_FUNCA void lj_tab_reasize(lua_State *L, GCtab *t, uint32_t nasize);
+
+/* Caveat: all getters except lj_tab_get() can return NULL! */
+
+LJ_FUNCA cTValue * LJ_FASTCALL lj_tab_getinth(GCtab *t, int32_t key);
+LJ_FUNC cTValue *lj_tab_getstr(GCtab *t, const GCstr *key);
+LJ_FUNCA cTValue *lj_tab_get(lua_State *L, GCtab *t, cTValue *key);
+
+/* Caveat: all setters require a write barrier for the stored value. */
+
+LJ_FUNCA TValue *lj_tab_newkey(lua_State *L, GCtab *t, cTValue *key);
+LJ_FUNCA TValue *lj_tab_setinth(lua_State *L, GCtab *t, int32_t key);
+LJ_FUNC TValue *lj_tab_setstr(lua_State *L, GCtab *t, const GCstr *key);
+LJ_FUNC TValue *lj_tab_set(lua_State *L, GCtab *t, cTValue *key);
+
+#define inarray(t, key)		((MSize)(key) < (MSize)(t)->asize)
+#define arrayslot(t, i)		(&tvref((t)->array)[(i)])
+#define lj_tab_getint(t, key) \
+  (inarray((t), (key)) ? arrayslot((t), (key)) : lj_tab_getinth((t), (key)))
+#define lj_tab_setint(L, t, key) \
+  (inarray((t), (key)) ? arrayslot((t), (key)) : lj_tab_setinth(L, (t), (key)))
+
+LJ_FUNC uint32_t LJ_FASTCALL lj_tab_keyindex(GCtab *t, cTValue *key);
+LJ_FUNCA int lj_tab_next(GCtab *t, cTValue *key, TValue *o);
+LJ_FUNCA MSize LJ_FASTCALL lj_tab_len(GCtab *t);
+#if LJ_HASJIT
+LJ_FUNC MSize LJ_FASTCALL lj_tab_len_hint(GCtab *t, size_t hint);
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_target.h b/libs/luajit-cmake/luajit/src/lj_target.h
new file mode 100644
index 0000000..1971692
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_target.h
@@ -0,0 +1,165 @@
+/*
+** Definitions for target CPU.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_TARGET_H
+#define _LJ_TARGET_H
+
+#include "lj_def.h"
+#include "lj_arch.h"
+
+/* -- Registers and spill slots ------------------------------------------- */
+
+/* Register type (uint8_t in ir->r). */
+typedef uint32_t Reg;
+
+/* The hi-bit is NOT set for an allocated register. This means the value
+** can be directly used without masking. The hi-bit is set for a register
+** allocation hint or for RID_INIT, RID_SINK or RID_SUNK.
+*/
+#define RID_NONE		0x80
+#define RID_MASK		0x7f
+#define RID_INIT		(RID_NONE|RID_MASK)
+#define RID_SINK		(RID_INIT-1)
+#define RID_SUNK		(RID_INIT-2)
+
+#define ra_noreg(r)		((r) & RID_NONE)
+#define ra_hasreg(r)		(!((r) & RID_NONE))
+
+/* The ra_hashint() macro assumes a previous test for ra_noreg(). */
+#define ra_hashint(r)		((r) < RID_SUNK)
+#define ra_gethint(r)		((Reg)((r) & RID_MASK))
+#define ra_sethint(rr, r)	rr = (uint8_t)((r)|RID_NONE)
+#define ra_samehint(r1, r2)	(ra_gethint((r1)^(r2)) == 0)
+
+/* Spill slot 0 means no spill slot has been allocated. */
+#define SPS_NONE		0
+
+#define ra_hasspill(s)		((s) != SPS_NONE)
+
+/* Combined register and spill slot (uint16_t in ir->prev). */
+typedef uint32_t RegSP;
+
+#define REGSP(r, s)		((r) + ((s) << 8))
+#define REGSP_HINT(r)		((r)|RID_NONE)
+#define REGSP_INIT		REGSP(RID_INIT, 0)
+
+#define regsp_reg(rs)		((rs) & 255)
+#define regsp_spill(rs)		((rs) >> 8)
+#define regsp_used(rs) \
+  (((rs) & ~REGSP(RID_MASK, 0)) != REGSP(RID_NONE, 0))
+
+/* -- Register sets ------------------------------------------------------- */
+
+/* Bitset for registers. 32 registers suffice for most architectures.
+** Note that one set holds bits for both GPRs and FPRs.
+*/
+#if LJ_TARGET_PPC || LJ_TARGET_MIPS || LJ_TARGET_ARM64
+typedef uint64_t RegSet;
+#else
+typedef uint32_t RegSet;
+#endif
+
+#define RID2RSET(r)		(((RegSet)1) << (r))
+#define RSET_EMPTY		((RegSet)0)
+#define RSET_RANGE(lo, hi)	((RID2RSET((hi)-(lo))-1) << (lo))
+
+#define rset_test(rs, r)	((int)((rs) >> (r)) & 1)
+#define rset_set(rs, r)		(rs |= RID2RSET(r))
+#define rset_clear(rs, r)	(rs &= ~RID2RSET(r))
+#define rset_exclude(rs, r)	(rs & ~RID2RSET(r))
+#if LJ_TARGET_PPC || LJ_TARGET_MIPS || LJ_TARGET_ARM64
+#define rset_picktop(rs)	((Reg)(__builtin_clzll(rs)^63))
+#define rset_pickbot(rs)	((Reg)__builtin_ctzll(rs))
+#else
+#define rset_picktop(rs)	((Reg)lj_fls(rs))
+#define rset_pickbot(rs)	((Reg)lj_ffs(rs))
+#endif
+
+/* -- Register allocation cost -------------------------------------------- */
+
+/* The register allocation heuristic keeps track of the cost for allocating
+** a specific register:
+**
+** A free register (obviously) has a cost of 0 and a 1-bit in the free mask.
+**
+** An already allocated register has the (non-zero) IR reference in the lowest
+** bits and the result of a blended cost-model in the higher bits.
+**
+** The allocator first checks the free mask for a hit. Otherwise an (unrolled)
+** linear search for the minimum cost is used. The search doesn't need to
+** keep track of the position of the minimum, which makes it very fast.
+** The lowest bits of the minimum cost show the desired IR reference whose
+** register is the one to evict.
+**
+** Without the cost-model this degenerates to the standard heuristics for
+** (reverse) linear-scan register allocation. Since code generation is done
+** in reverse, a live interval extends from the last use to the first def.
+** For an SSA IR the IR reference is the first (and only) def and thus
+** trivially marks the end of the interval. The LSRA heuristics says to pick
+** the register whose live interval has the furthest extent, i.e. the lowest
+** IR reference in our case.
+**
+** A cost-model should take into account other factors, like spill-cost and
+** restore- or rematerialization-cost, which depend on the kind of instruction.
+** E.g. constants have zero spill costs, variant instructions have higher
+** costs than invariants and PHIs should preferably never be spilled.
+**
+** Here's a first cut at simple, but effective blended cost-model for R-LSRA:
+** - Due to careful design of the IR, constants already have lower IR
+**   references than invariants and invariants have lower IR references
+**   than variants.
+** - The cost in the upper 16 bits is the sum of the IR reference and a
+**   weighted score. The score currently only takes into account whether
+**   the IRT_ISPHI bit is set in the instruction type.
+** - The PHI weight is the minimum distance (in IR instructions) a PHI
+**   reference has to be further apart from a non-PHI reference to be spilled.
+** - It should be a power of two (for speed) and must be between 2 and 32768.
+**   Good values for the PHI weight seem to be between 40 and 150.
+** - Further study is required.
+*/
+#define REGCOST_PHI_WEIGHT	64
+
+/* Cost for allocating a specific register. */
+typedef uint32_t RegCost;
+
+/* Note: assumes 16 bit IRRef1. */
+#define REGCOST(cost, ref)	((RegCost)(ref) + ((RegCost)(cost) << 16))
+#define regcost_ref(rc)		((IRRef1)(rc))
+
+#define REGCOST_T(t) \
+  ((RegCost)((t)&IRT_ISPHI) * (((RegCost)(REGCOST_PHI_WEIGHT)<<16)/IRT_ISPHI))
+#define REGCOST_REF_T(ref, t)	(REGCOST((ref), (ref)) + REGCOST_T((t)))
+
+/* -- Target-specific definitions ----------------------------------------- */
+
+#if LJ_TARGET_X86ORX64
+#include "lj_target_x86.h"
+#elif LJ_TARGET_ARM
+#include "lj_target_arm.h"
+#elif LJ_TARGET_ARM64
+#include "lj_target_arm64.h"
+#elif LJ_TARGET_PPC
+#include "lj_target_ppc.h"
+#elif LJ_TARGET_MIPS
+#include "lj_target_mips.h"
+#else
+#error "Missing include for target CPU"
+#endif
+
+#ifdef EXITSTUBS_PER_GROUP
+/* Return the address of an exit stub. */
+static LJ_AINLINE char *exitstub_addr_(char **group, uint32_t exitno)
+{
+  lj_assertX(group[exitno / EXITSTUBS_PER_GROUP] != NULL,
+	     "exit stub group for exit %d uninitialized", exitno);
+  return (char *)group[exitno / EXITSTUBS_PER_GROUP] +
+	 EXITSTUB_SPACING*(exitno % EXITSTUBS_PER_GROUP);
+}
+/* Avoid dependence on lj_jit.h if only including lj_target.h. */
+#define exitstub_addr(J, exitno) \
+  ((MCode *)exitstub_addr_((char **)((J)->exitstubgroup), (exitno)))
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_target_arm.h b/libs/luajit-cmake/luajit/src/lj_target_arm.h
new file mode 100644
index 0000000..48f487a
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_target_arm.h
@@ -0,0 +1,271 @@
+/*
+** Definitions for ARM CPUs.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_TARGET_ARM_H
+#define _LJ_TARGET_ARM_H
+
+/* -- Registers IDs ------------------------------------------------------- */
+
+#define GPRDEF(_) \
+  _(R0) _(R1) _(R2) _(R3) _(R4) _(R5) _(R6) _(R7) \
+  _(R8) _(R9) _(R10) _(R11) _(R12) _(SP) _(LR) _(PC)
+#if LJ_SOFTFP
+#define FPRDEF(_)
+#else
+#define FPRDEF(_) \
+  _(D0) _(D1) _(D2) _(D3) _(D4) _(D5) _(D6) _(D7) \
+  _(D8) _(D9) _(D10) _(D11) _(D12) _(D13) _(D14) _(D15)
+#endif
+#define VRIDDEF(_)
+
+#define RIDENUM(name)	RID_##name,
+
+enum {
+  GPRDEF(RIDENUM)		/* General-purpose registers (GPRs). */
+  FPRDEF(RIDENUM)		/* Floating-point registers (FPRs). */
+  RID_MAX,
+  RID_TMP = RID_LR,
+
+  /* Calling conventions. */
+  RID_RET = RID_R0,
+  RID_RETLO = RID_R0,
+  RID_RETHI = RID_R1,
+#if LJ_SOFTFP
+  RID_FPRET = RID_R0,
+#else
+  RID_FPRET = RID_D0,
+#endif
+
+  /* These definitions must match with the *.dasc file(s): */
+  RID_BASE = RID_R9,		/* Interpreter BASE. */
+  RID_LPC = RID_R6,		/* Interpreter PC. */
+  RID_DISPATCH = RID_R7,	/* Interpreter DISPATCH table. */
+  RID_LREG = RID_R8,		/* Interpreter L. */
+
+  /* Register ranges [min, max) and number of registers. */
+  RID_MIN_GPR = RID_R0,
+  RID_MAX_GPR = RID_PC+1,
+  RID_MIN_FPR = RID_MAX_GPR,
+#if LJ_SOFTFP
+  RID_MAX_FPR = RID_MIN_FPR,
+#else
+  RID_MAX_FPR = RID_D15+1,
+#endif
+  RID_NUM_GPR = RID_MAX_GPR - RID_MIN_GPR,
+  RID_NUM_FPR = RID_MAX_FPR - RID_MIN_FPR
+};
+
+#define RID_NUM_KREF		RID_NUM_GPR
+#define RID_MIN_KREF		RID_R0
+
+/* -- Register sets ------------------------------------------------------- */
+
+/* Make use of all registers, except sp, lr and pc. */
+#define RSET_GPR		(RSET_RANGE(RID_MIN_GPR, RID_R12+1))
+#define RSET_GPREVEN \
+  (RID2RSET(RID_R0)|RID2RSET(RID_R2)|RID2RSET(RID_R4)|RID2RSET(RID_R6)| \
+   RID2RSET(RID_R8)|RID2RSET(RID_R10))
+#define RSET_GPRODD \
+  (RID2RSET(RID_R1)|RID2RSET(RID_R3)|RID2RSET(RID_R5)|RID2RSET(RID_R7)| \
+   RID2RSET(RID_R9)|RID2RSET(RID_R11))
+#if LJ_SOFTFP
+#define RSET_FPR		0
+#else
+#define RSET_FPR		(RSET_RANGE(RID_MIN_FPR, RID_MAX_FPR))
+#endif
+#define RSET_ALL		(RSET_GPR|RSET_FPR)
+#define RSET_INIT		RSET_ALL
+
+/* ABI-specific register sets. lr is an implicit scratch register. */
+#define RSET_SCRATCH_GPR_	(RSET_RANGE(RID_R0, RID_R3+1)|RID2RSET(RID_R12))
+#ifdef __APPLE__
+#define RSET_SCRATCH_GPR	(RSET_SCRATCH_GPR_|RID2RSET(RID_R9))
+#else
+#define RSET_SCRATCH_GPR	RSET_SCRATCH_GPR_
+#endif
+#if LJ_SOFTFP
+#define RSET_SCRATCH_FPR	0
+#else
+#define RSET_SCRATCH_FPR	(RSET_RANGE(RID_D0, RID_D7+1))
+#endif
+#define RSET_SCRATCH		(RSET_SCRATCH_GPR|RSET_SCRATCH_FPR)
+#define REGARG_FIRSTGPR		RID_R0
+#define REGARG_LASTGPR		RID_R3
+#define REGARG_NUMGPR		4
+#if LJ_ABI_SOFTFP
+#define REGARG_FIRSTFPR		0
+#define REGARG_LASTFPR		0
+#define REGARG_NUMFPR		0
+#else
+#define REGARG_FIRSTFPR		RID_D0
+#define REGARG_LASTFPR		RID_D7
+#define REGARG_NUMFPR		8
+#endif
+
+/* -- Spill slots --------------------------------------------------------- */
+
+/* Spill slots are 32 bit wide. An even/odd pair is used for FPRs.
+**
+** SPS_FIXED: Available fixed spill slots in interpreter frame.
+** This definition must match with the *.dasc file(s).
+**
+** SPS_FIRST: First spill slot for general use. Reserve min. two 32 bit slots.
+*/
+#define SPS_FIXED	2
+#define SPS_FIRST	2
+
+#define SPOFS_TMP	0
+
+#define sps_scale(slot)		(4 * (int32_t)(slot))
+#define sps_align(slot)		(((slot) - SPS_FIXED + 1) & ~1)
+
+/* -- Exit state ---------------------------------------------------------- */
+
+/* This definition must match with the *.dasc file(s). */
+typedef struct {
+#if !LJ_SOFTFP
+  lua_Number fpr[RID_NUM_FPR];	/* Floating-point registers. */
+#endif
+  int32_t gpr[RID_NUM_GPR];	/* General-purpose registers. */
+  int32_t spill[256];		/* Spill slots. */
+} ExitState;
+
+/* PC after instruction that caused an exit. Used to find the trace number. */
+#define EXITSTATE_PCREG		RID_PC
+/* Highest exit + 1 indicates stack check. */
+#define EXITSTATE_CHECKEXIT	1
+
+#define EXITSTUB_SPACING        4
+#define EXITSTUBS_PER_GROUP     32
+
+/* -- Instructions -------------------------------------------------------- */
+
+/* Instruction fields. */
+#define ARMF_CC(ai, cc)	(((ai) ^ ARMI_CCAL) | ((cc) << 28))
+#define ARMF_N(r)	((r) << 16)
+#define ARMF_D(r)	((r) << 12)
+#define ARMF_S(r)	((r) << 8)
+#define ARMF_M(r)	(r)
+#define ARMF_SH(sh, n)	(((sh) << 5) | ((n) << 7))
+#define ARMF_RSH(sh, r)	(0x10 | ((sh) << 5) | ARMF_S(r))
+
+typedef enum ARMIns {
+  ARMI_CCAL = 0xe0000000,
+  ARMI_S = 0x000100000,
+  ARMI_K12 = 0x02000000,
+  ARMI_KNEG = 0x00200000,
+  ARMI_LS_W = 0x00200000,
+  ARMI_LS_U = 0x00800000,
+  ARMI_LS_P = 0x01000000,
+  ARMI_LS_R = 0x02000000,
+  ARMI_LSX_I = 0x00400000,
+
+  ARMI_AND = 0xe0000000,
+  ARMI_EOR = 0xe0200000,
+  ARMI_SUB = 0xe0400000,
+  ARMI_RSB = 0xe0600000,
+  ARMI_ADD = 0xe0800000,
+  ARMI_ADC = 0xe0a00000,
+  ARMI_SBC = 0xe0c00000,
+  ARMI_RSC = 0xe0e00000,
+  ARMI_TST = 0xe1100000,
+  ARMI_TEQ = 0xe1300000,
+  ARMI_CMP = 0xe1500000,
+  ARMI_CMN = 0xe1700000,
+  ARMI_ORR = 0xe1800000,
+  ARMI_MOV = 0xe1a00000,
+  ARMI_BIC = 0xe1c00000,
+  ARMI_MVN = 0xe1e00000,
+
+  ARMI_NOP = 0xe1a00000,
+
+  ARMI_MUL = 0xe0000090,
+  ARMI_SMULL = 0xe0c00090,
+
+  ARMI_LDR = 0xe4100000,
+  ARMI_LDRB = 0xe4500000,
+  ARMI_LDRH = 0xe01000b0,
+  ARMI_LDRSB = 0xe01000d0,
+  ARMI_LDRSH = 0xe01000f0,
+  ARMI_LDRD = 0xe00000d0,
+  ARMI_STR = 0xe4000000,
+  ARMI_STRB = 0xe4400000,
+  ARMI_STRH = 0xe00000b0,
+  ARMI_STRD = 0xe00000f0,
+  ARMI_PUSH = 0xe92d0000,
+
+  ARMI_B = 0xea000000,
+  ARMI_BL = 0xeb000000,
+  ARMI_BLX = 0xfa000000,
+  ARMI_BLXr = 0xe12fff30,
+
+  /* ARMv6 */
+  ARMI_REV = 0xe6bf0f30,
+  ARMI_SXTB = 0xe6af0070,
+  ARMI_SXTH = 0xe6bf0070,
+  ARMI_UXTB = 0xe6ef0070,
+  ARMI_UXTH = 0xe6ff0070,
+
+  /* ARMv6T2 */
+  ARMI_MOVW = 0xe3000000,
+  ARMI_MOVT = 0xe3400000,
+  ARMI_BFI = 0xe7c00010,
+
+  /* VFP */
+  ARMI_VMOV_D = 0xeeb00b40,
+  ARMI_VMOV_S = 0xeeb00a40,
+  ARMI_VMOVI_D = 0xeeb00b00,
+
+  ARMI_VMOV_R_S = 0xee100a10,
+  ARMI_VMOV_S_R = 0xee000a10,
+  ARMI_VMOV_RR_D = 0xec500b10,
+  ARMI_VMOV_D_RR = 0xec400b10,
+
+  ARMI_VADD_D = 0xee300b00,
+  ARMI_VSUB_D = 0xee300b40,
+  ARMI_VMUL_D = 0xee200b00,
+  ARMI_VMLA_D = 0xee000b00,
+  ARMI_VMLS_D = 0xee000b40,
+  ARMI_VNMLS_D = 0xee100b00,
+  ARMI_VDIV_D = 0xee800b00,
+
+  ARMI_VABS_D = 0xeeb00bc0,
+  ARMI_VNEG_D = 0xeeb10b40,
+  ARMI_VSQRT_D = 0xeeb10bc0,
+
+  ARMI_VCMP_D = 0xeeb40b40,
+  ARMI_VCMPZ_D = 0xeeb50b40,
+
+  ARMI_VMRS = 0xeef1fa10,
+
+  ARMI_VCVT_S32_F32 = 0xeebd0ac0,
+  ARMI_VCVT_S32_F64 = 0xeebd0bc0,
+  ARMI_VCVT_U32_F32 = 0xeebc0ac0,
+  ARMI_VCVT_U32_F64 = 0xeebc0bc0,
+  ARMI_VCVT_F32_S32 = 0xeeb80ac0,
+  ARMI_VCVT_F64_S32 = 0xeeb80bc0,
+  ARMI_VCVT_F32_U32 = 0xeeb80a40,
+  ARMI_VCVT_F64_U32 = 0xeeb80b40,
+  ARMI_VCVT_F32_F64 = 0xeeb70bc0,
+  ARMI_VCVT_F64_F32 = 0xeeb70ac0,
+
+  ARMI_VLDR_S = 0xed100a00,
+  ARMI_VLDR_D = 0xed100b00,
+  ARMI_VSTR_S = 0xed000a00,
+  ARMI_VSTR_D = 0xed000b00,
+} ARMIns;
+
+typedef enum ARMShift {
+  ARMSH_LSL, ARMSH_LSR, ARMSH_ASR, ARMSH_ROR
+} ARMShift;
+
+/* ARM condition codes. */
+typedef enum ARMCC {
+  CC_EQ, CC_NE, CC_CS, CC_CC, CC_MI, CC_PL, CC_VS, CC_VC,
+  CC_HI, CC_LS, CC_GE, CC_LT, CC_GT, CC_LE, CC_AL,
+  CC_HS = CC_CS, CC_LO = CC_CC
+} ARMCC;
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_target_arm64.h b/libs/luajit-cmake/luajit/src/lj_target_arm64.h
new file mode 100644
index 0000000..d45af2e
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_target_arm64.h
@@ -0,0 +1,336 @@
+/*
+** Definitions for ARM64 CPUs.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_TARGET_ARM64_H
+#define _LJ_TARGET_ARM64_H
+
+/* -- Registers IDs ------------------------------------------------------- */
+
+#define GPRDEF(_) \
+  _(X0) _(X1) _(X2) _(X3) _(X4) _(X5) _(X6) _(X7) \
+  _(X8) _(X9) _(X10) _(X11) _(X12) _(X13) _(X14) _(X15) \
+  _(X16) _(X17) _(X18) _(X19) _(X20) _(X21) _(X22) _(X23) \
+  _(X24) _(X25) _(X26) _(X27) _(X28) _(FP) _(LR) _(SP)
+#define FPRDEF(_) \
+  _(D0) _(D1) _(D2) _(D3) _(D4) _(D5) _(D6) _(D7) \
+  _(D8) _(D9) _(D10) _(D11) _(D12) _(D13) _(D14) _(D15) \
+  _(D16) _(D17) _(D18) _(D19) _(D20) _(D21) _(D22) _(D23) \
+  _(D24) _(D25) _(D26) _(D27) _(D28) _(D29) _(D30) _(D31)
+#define VRIDDEF(_)
+
+#define RIDENUM(name)	RID_##name,
+
+enum {
+  GPRDEF(RIDENUM)		/* General-purpose registers (GPRs). */
+  FPRDEF(RIDENUM)		/* Floating-point registers (FPRs). */
+  RID_MAX,
+  RID_TMP = RID_LR,
+  RID_ZERO = RID_SP,
+
+  /* Calling conventions. */
+  RID_RET = RID_X0,
+  RID_RETLO = RID_X0,
+  RID_RETHI = RID_X1,
+  RID_FPRET = RID_D0,
+
+  /* These definitions must match with the *.dasc file(s): */
+  RID_BASE = RID_X19,		/* Interpreter BASE. */
+  RID_LPC = RID_X21,		/* Interpreter PC. */
+  RID_GL = RID_X22,		/* Interpreter GL. */
+  RID_LREG = RID_X23,		/* Interpreter L. */
+
+  /* Register ranges [min, max) and number of registers. */
+  RID_MIN_GPR = RID_X0,
+  RID_MAX_GPR = RID_SP+1,
+  RID_MIN_FPR = RID_MAX_GPR,
+  RID_MAX_FPR = RID_D31+1,
+  RID_NUM_GPR = RID_MAX_GPR - RID_MIN_GPR,
+  RID_NUM_FPR = RID_MAX_FPR - RID_MIN_FPR
+};
+
+#define RID_NUM_KREF		RID_NUM_GPR
+#define RID_MIN_KREF		RID_X0
+
+/* -- Register sets ------------------------------------------------------- */
+
+/* Make use of all registers, except for x18, fp, lr and sp. */
+#define RSET_FIXED \
+  (RID2RSET(RID_X18)|RID2RSET(RID_FP)|RID2RSET(RID_LR)|RID2RSET(RID_SP)|\
+   RID2RSET(RID_GL))
+#define RSET_GPR	(RSET_RANGE(RID_MIN_GPR, RID_MAX_GPR) - RSET_FIXED)
+#define RSET_FPR	RSET_RANGE(RID_MIN_FPR, RID_MAX_FPR)
+#define RSET_ALL	(RSET_GPR|RSET_FPR)
+#define RSET_INIT	RSET_ALL
+
+/* lr is an implicit scratch register. */
+#define RSET_SCRATCH_GPR	(RSET_RANGE(RID_X0, RID_X17+1))
+#define RSET_SCRATCH_FPR \
+  (RSET_RANGE(RID_D0, RID_D7+1)|RSET_RANGE(RID_D16, RID_D31+1))
+#define RSET_SCRATCH		(RSET_SCRATCH_GPR|RSET_SCRATCH_FPR)
+#define REGARG_FIRSTGPR		RID_X0
+#define REGARG_LASTGPR		RID_X7
+#define REGARG_NUMGPR		8
+#define REGARG_FIRSTFPR		RID_D0
+#define REGARG_LASTFPR		RID_D7
+#define REGARG_NUMFPR		8
+
+/* -- Spill slots --------------------------------------------------------- */
+
+/* Spill slots are 32 bit wide. An even/odd pair is used for FPRs.
+**
+** SPS_FIXED: Available fixed spill slots in interpreter frame.
+** This definition must match with the vm_arm64.dasc file.
+** Pre-allocate some slots to avoid sp adjust in every root trace.
+**
+** SPS_FIRST: First spill slot for general use. Reserve min. two 32 bit slots.
+*/
+#define SPS_FIXED	4
+#define SPS_FIRST	2
+
+#define SPOFS_TMP	0
+
+#define sps_scale(slot)		(4 * (int32_t)(slot))
+#define sps_align(slot)		(((slot) - SPS_FIXED + 3) & ~3)
+
+/* -- Exit state ---------------------------------------------------------- */
+
+/* This definition must match with the *.dasc file(s). */
+typedef struct {
+  lua_Number fpr[RID_NUM_FPR];	/* Floating-point registers. */
+  intptr_t gpr[RID_NUM_GPR];	/* General-purpose registers. */
+  int32_t spill[256];		/* Spill slots. */
+} ExitState;
+
+/* Highest exit + 1 indicates stack check. */
+#define EXITSTATE_CHECKEXIT	1
+
+/* Return the address of a per-trace exit stub. */
+static LJ_AINLINE uint32_t *exitstub_trace_addr_(uint32_t *p, uint32_t exitno)
+{
+  while (*p == (LJ_LE ? 0xd503201f : 0x1f2003d5)) p++;  /* Skip A64I_NOP. */
+  return p + 3 + exitno;
+}
+/* Avoid dependence on lj_jit.h if only including lj_target.h. */
+#define exitstub_trace_addr(T, exitno) \
+  exitstub_trace_addr_((MCode *)((char *)(T)->mcode + (T)->szmcode), (exitno))
+
+/* -- Instructions -------------------------------------------------------- */
+
+/* ARM64 instructions are always little-endian. Swap for ARM64BE. */
+#if LJ_BE
+#define A64I_LE(x)	(lj_bswap(x))
+#else
+#define A64I_LE(x)	(x)
+#endif
+
+/* Instruction fields. */
+#define A64F_D(r)	(r)
+#define A64F_N(r)	((r) << 5)
+#define A64F_A(r)	((r) << 10)
+#define A64F_M(r)	((r) << 16)
+#define A64F_IMMS(x)	((x) << 10)
+#define A64F_IMMR(x)	((x) << 16)
+#define A64F_U16(x)	((x) << 5)
+#define A64F_U12(x)	((x) << 10)
+#define A64F_S26(x)	(((uint32_t)(x) & 0x03ffffffu))
+#define A64F_S19(x)	(((uint32_t)(x) & 0x7ffffu) << 5)
+#define A64F_S14(x)	(((uint32_t)(x) & 0x3fffu) << 5)
+#define A64F_S9(x)	((x) << 12)
+#define A64F_BIT(x)	((x) << 19)
+#define A64F_SH(sh, x)	(((sh) << 22) | ((x) << 10))
+#define A64F_EX(ex)	(A64I_EX | ((ex) << 13))
+#define A64F_EXSH(ex,x)	(A64I_EX | ((ex) << 13) | ((x) << 10))
+#define A64F_FP8(x)	((x) << 13)
+#define A64F_CC(cc)	((cc) << 12)
+#define A64F_LSL16(x)	(((x) / 16) << 21)
+#define A64F_BSH(sh)	((sh) << 10)
+
+/* Check for valid field range. */
+#define A64F_S_OK(x, b)	((((x) + (1 << (b-1))) >> (b)) == 0)
+
+typedef enum A64Ins {
+  A64I_S = 0x20000000,
+  A64I_X = 0x80000000,
+  A64I_EX = 0x00200000,
+  A64I_ON = 0x00200000,
+  A64I_K12 = 0x1a000000,
+  A64I_K13 = 0x18000000,
+  A64I_LS_U = 0x01000000,
+  A64I_LS_S = 0x00800000,
+  A64I_LS_R = 0x01200800,
+  A64I_LS_SH = 0x00001000,
+  A64I_LS_UXTWx = 0x00004000,
+  A64I_LS_SXTWx = 0x0000c000,
+  A64I_LS_SXTXx = 0x0000e000,
+  A64I_LS_LSLx = 0x00006000,
+
+  A64I_ADDw = 0x0b000000,
+  A64I_ADDx = 0x8b000000,
+  A64I_ADDSw = 0x2b000000,
+  A64I_ADDSx = 0xab000000,
+  A64I_NEGw = 0x4b0003e0,
+  A64I_NEGx = 0xcb0003e0,
+  A64I_SUBw = 0x4b000000,
+  A64I_SUBx = 0xcb000000,
+  A64I_SUBSw = 0x6b000000,
+  A64I_SUBSx = 0xeb000000,
+
+  A64I_MULw = 0x1b007c00,
+  A64I_MULx = 0x9b007c00,
+  A64I_SMULL = 0x9b207c00,
+
+  A64I_ANDw = 0x0a000000,
+  A64I_ANDx = 0x8a000000,
+  A64I_ANDSw = 0x6a000000,
+  A64I_ANDSx = 0xea000000,
+  A64I_EORw = 0x4a000000,
+  A64I_EORx = 0xca000000,
+  A64I_ORRw = 0x2a000000,
+  A64I_ORRx = 0xaa000000,
+  A64I_TSTw  = 0x6a00001f,
+  A64I_TSTx  = 0xea00001f,
+
+  A64I_CMPw = 0x6b00001f,
+  A64I_CMPx = 0xeb00001f,
+  A64I_CMNw = 0x2b00001f,
+  A64I_CMNx = 0xab00001f,
+  A64I_CCMPw = 0x7a400000,
+  A64I_CCMPx = 0xfa400000,
+  A64I_CSELw = 0x1a800000,
+  A64I_CSELx = 0x9a800000,
+
+  A64I_ASRw = 0x13007c00,
+  A64I_ASRx = 0x9340fc00,
+  A64I_LSLx = 0xd3400000,
+  A64I_LSRx = 0xd340fc00,
+  A64I_SHRw = 0x1ac02000,
+  A64I_SHRx = 0x9ac02000,	/* lsl/lsr/asr/ror x0, x0, x0 */
+  A64I_REVw = 0x5ac00800,
+  A64I_REVx = 0xdac00c00,
+
+  A64I_EXTRw = 0x13800000,
+  A64I_EXTRx = 0x93c00000,
+  A64I_BFMw = 0x33000000,
+  A64I_BFMx = 0xb3400000,
+  A64I_SBFMw = 0x13000000,
+  A64I_SBFMx = 0x93400000,
+  A64I_SXTBw = 0x13001c00,
+  A64I_SXTHw = 0x13003c00,
+  A64I_SXTW = 0x93407c00,
+  A64I_UBFMw = 0x53000000,
+  A64I_UBFMx = 0xd3400000,
+  A64I_UXTBw = 0x53001c00,
+  A64I_UXTHw = 0x53003c00,
+
+  A64I_MOVw = 0x2a0003e0,
+  A64I_MOVx = 0xaa0003e0,
+  A64I_MVNw = 0x2a2003e0,
+  A64I_MVNx = 0xaa2003e0,
+  A64I_MOVKw = 0x72800000,
+  A64I_MOVKx = 0xf2800000,
+  A64I_MOVZw = 0x52800000,
+  A64I_MOVZx = 0xd2800000,
+  A64I_MOVNw = 0x12800000,
+  A64I_MOVNx = 0x92800000,
+
+  A64I_LDRB = 0x39400000,
+  A64I_LDRH = 0x79400000,
+  A64I_LDRw = 0xb9400000,
+  A64I_LDRx = 0xf9400000,
+  A64I_LDRLw = 0x18000000,
+  A64I_LDRLx = 0x58000000,
+  A64I_STRB = 0x39000000,
+  A64I_STRH = 0x79000000,
+  A64I_STRw = 0xb9000000,
+  A64I_STRx = 0xf9000000,
+  A64I_STPw = 0x29000000,
+  A64I_STPx = 0xa9000000,
+  A64I_LDPw = 0x29400000,
+  A64I_LDPx = 0xa9400000,
+
+  A64I_B = 0x14000000,
+  A64I_BCC = 0x54000000,
+  A64I_BL = 0x94000000,
+  A64I_BR = 0xd61f0000,
+  A64I_BLR = 0xd63f0000,
+  A64I_TBZ = 0x36000000,
+  A64I_TBNZ = 0x37000000,
+  A64I_CBZ = 0x34000000,
+  A64I_CBNZ = 0x35000000,
+
+  A64I_NOP = 0xd503201f,
+
+  /* FP */
+  A64I_FADDd = 0x1e602800,
+  A64I_FSUBd = 0x1e603800,
+  A64I_FMADDd = 0x1f400000,
+  A64I_FMSUBd = 0x1f408000,
+  A64I_FNMADDd = 0x1f600000,
+  A64I_FNMSUBd = 0x1f608000,
+  A64I_FMULd = 0x1e600800,
+  A64I_FDIVd = 0x1e601800,
+  A64I_FNEGd = 0x1e614000,
+  A64I_FABS = 0x1e60c000,
+  A64I_FSQRTd = 0x1e61c000,
+  A64I_LDRs = 0xbd400000,
+  A64I_LDRd = 0xfd400000,
+  A64I_STRs = 0xbd000000,
+  A64I_STRd = 0xfd000000,
+  A64I_LDPs = 0x2d400000,
+  A64I_LDPd = 0x6d400000,
+  A64I_STPs = 0x2d000000,
+  A64I_STPd = 0x6d000000,
+  A64I_FCMPd = 0x1e602000,
+  A64I_FCMPZd = 0x1e602008,
+  A64I_FCSELd = 0x1e600c00,
+  A64I_FRINTMd = 0x1e654000,
+  A64I_FRINTPd = 0x1e64c000,
+  A64I_FRINTZd = 0x1e65c000,
+
+  A64I_FCVT_F32_F64 = 0x1e624000,
+  A64I_FCVT_F64_F32 = 0x1e22c000,
+  A64I_FCVT_F32_S32 = 0x1e220000,
+  A64I_FCVT_F64_S32 = 0x1e620000,
+  A64I_FCVT_F32_U32 = 0x1e230000,
+  A64I_FCVT_F64_U32 = 0x1e630000,
+  A64I_FCVT_F32_S64 = 0x9e220000,
+  A64I_FCVT_F64_S64 = 0x9e620000,
+  A64I_FCVT_F32_U64 = 0x9e230000,
+  A64I_FCVT_F64_U64 = 0x9e630000,
+  A64I_FCVT_S32_F64 = 0x1e780000,
+  A64I_FCVT_S32_F32 = 0x1e380000,
+  A64I_FCVT_U32_F64 = 0x1e790000,
+  A64I_FCVT_U32_F32 = 0x1e390000,
+  A64I_FCVT_S64_F64 = 0x9e780000,
+  A64I_FCVT_S64_F32 = 0x9e380000,
+  A64I_FCVT_U64_F64 = 0x9e790000,
+  A64I_FCVT_U64_F32 = 0x9e390000,
+
+  A64I_FMOV_S = 0x1e204000,
+  A64I_FMOV_D = 0x1e604000,
+  A64I_FMOV_R_S = 0x1e260000,
+  A64I_FMOV_S_R = 0x1e270000,
+  A64I_FMOV_R_D = 0x9e660000,
+  A64I_FMOV_D_R = 0x9e670000,
+  A64I_FMOV_DI = 0x1e601000,
+} A64Ins;
+
+typedef enum A64Shift {
+  A64SH_LSL, A64SH_LSR, A64SH_ASR, A64SH_ROR
+} A64Shift;
+
+typedef enum A64Extend {
+  A64EX_UXTB, A64EX_UXTH, A64EX_UXTW, A64EX_UXTX,
+  A64EX_SXTB, A64EX_SXTH, A64EX_SXTW, A64EX_SXTX,
+} A64Extend;
+
+/* ARM condition codes. */
+typedef enum A64CC {
+  CC_EQ, CC_NE, CC_CS, CC_CC, CC_MI, CC_PL, CC_VS, CC_VC,
+  CC_HI, CC_LS, CC_GE, CC_LT, CC_GT, CC_LE, CC_AL,
+  CC_HS = CC_CS, CC_LO = CC_CC
+} A64CC;
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_target_mips.h b/libs/luajit-cmake/luajit/src/lj_target_mips.h
new file mode 100644
index 0000000..da72d61
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_target_mips.h
@@ -0,0 +1,417 @@
+/*
+** Definitions for MIPS CPUs.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_TARGET_MIPS_H
+#define _LJ_TARGET_MIPS_H
+
+/* -- Registers IDs ------------------------------------------------------- */
+
+#define GPRDEF(_) \
+  _(R0) _(R1) _(R2) _(R3) _(R4) _(R5) _(R6) _(R7) \
+  _(R8) _(R9) _(R10) _(R11) _(R12) _(R13) _(R14) _(R15) \
+  _(R16) _(R17) _(R18) _(R19) _(R20) _(R21) _(R22) _(R23) \
+  _(R24) _(R25) _(SYS1) _(SYS2) _(R28) _(SP) _(R30) _(RA)
+#if LJ_SOFTFP
+#define FPRDEF(_)
+#else
+#define FPRDEF(_) \
+  _(F0) _(F1) _(F2) _(F3) _(F4) _(F5) _(F6) _(F7) \
+  _(F8) _(F9) _(F10) _(F11) _(F12) _(F13) _(F14) _(F15) \
+  _(F16) _(F17) _(F18) _(F19) _(F20) _(F21) _(F22) _(F23) \
+  _(F24) _(F25) _(F26) _(F27) _(F28) _(F29) _(F30) _(F31)
+#endif
+#define VRIDDEF(_)
+
+#define RIDENUM(name)	RID_##name,
+
+enum {
+  GPRDEF(RIDENUM)		/* General-purpose registers (GPRs). */
+  FPRDEF(RIDENUM)		/* Floating-point registers (FPRs). */
+  RID_MAX,
+  RID_ZERO = RID_R0,
+  RID_TMP = RID_RA,
+  RID_GP = RID_R28,
+
+  /* Calling conventions. */
+  RID_RET = RID_R2,
+#if LJ_LE
+  RID_RETHI = RID_R3,
+  RID_RETLO = RID_R2,
+#else
+  RID_RETHI = RID_R2,
+  RID_RETLO = RID_R3,
+#endif
+#if LJ_SOFTFP
+  RID_FPRET = RID_R2,
+#else
+  RID_FPRET = RID_F0,
+#endif
+  RID_CFUNCADDR = RID_R25,
+
+  /* These definitions must match with the *.dasc file(s): */
+  RID_BASE = RID_R16,		/* Interpreter BASE. */
+  RID_LPC = RID_R18,		/* Interpreter PC. */
+  RID_DISPATCH = RID_R19,	/* Interpreter DISPATCH table. */
+  RID_LREG = RID_R20,		/* Interpreter L. */
+  RID_JGL = RID_R30,		/* On-trace: global_State + 32768. */
+
+  /* Register ranges [min, max) and number of registers. */
+  RID_MIN_GPR = RID_R0,
+  RID_MAX_GPR = RID_RA+1,
+  RID_MIN_FPR = RID_MAX_GPR,
+#if LJ_SOFTFP
+  RID_MAX_FPR = RID_MIN_FPR,
+#else
+  RID_MAX_FPR = RID_F31+1,
+#endif
+  RID_NUM_GPR = RID_MAX_GPR - RID_MIN_GPR,
+  RID_NUM_FPR = RID_MAX_FPR - RID_MIN_FPR	/* Only even regs are used. */
+};
+
+#define RID_NUM_KREF		RID_NUM_GPR
+#define RID_MIN_KREF		RID_R0
+
+/* -- Register sets ------------------------------------------------------- */
+
+/* Make use of all registers, except ZERO, TMP, SP, SYS1, SYS2, JGL and GP. */
+#define RSET_FIXED \
+  (RID2RSET(RID_ZERO)|RID2RSET(RID_TMP)|RID2RSET(RID_SP)|\
+   RID2RSET(RID_SYS1)|RID2RSET(RID_SYS2)|RID2RSET(RID_JGL)|RID2RSET(RID_GP))
+#define RSET_GPR	(RSET_RANGE(RID_MIN_GPR, RID_MAX_GPR) - RSET_FIXED)
+#if LJ_SOFTFP
+#define RSET_FPR		0
+#else
+#if LJ_32
+#define RSET_FPR \
+  (RID2RSET(RID_F0)|RID2RSET(RID_F2)|RID2RSET(RID_F4)|RID2RSET(RID_F6)|\
+   RID2RSET(RID_F8)|RID2RSET(RID_F10)|RID2RSET(RID_F12)|RID2RSET(RID_F14)|\
+   RID2RSET(RID_F16)|RID2RSET(RID_F18)|RID2RSET(RID_F20)|RID2RSET(RID_F22)|\
+   RID2RSET(RID_F24)|RID2RSET(RID_F26)|RID2RSET(RID_F28)|RID2RSET(RID_F30))
+#else
+#define RSET_FPR		RSET_RANGE(RID_MIN_FPR, RID_MAX_FPR)
+#endif
+#endif
+#define RSET_ALL		(RSET_GPR|RSET_FPR)
+#define RSET_INIT		RSET_ALL
+
+#define RSET_SCRATCH_GPR \
+  (RSET_RANGE(RID_R1, RID_R15+1)|\
+   RID2RSET(RID_R24)|RID2RSET(RID_R25))
+#if LJ_SOFTFP
+#define RSET_SCRATCH_FPR	0
+#else
+#if LJ_32
+#define RSET_SCRATCH_FPR \
+  (RID2RSET(RID_F0)|RID2RSET(RID_F2)|RID2RSET(RID_F4)|RID2RSET(RID_F6)|\
+   RID2RSET(RID_F8)|RID2RSET(RID_F10)|RID2RSET(RID_F12)|RID2RSET(RID_F14)|\
+   RID2RSET(RID_F16)|RID2RSET(RID_F18))
+#else
+#define RSET_SCRATCH_FPR	RSET_RANGE(RID_F0, RID_F24)
+#endif
+#endif
+#define RSET_SCRATCH		(RSET_SCRATCH_GPR|RSET_SCRATCH_FPR)
+#define REGARG_FIRSTGPR		RID_R4
+#if LJ_32
+#define REGARG_LASTGPR		RID_R7
+#define REGARG_NUMGPR		4
+#else
+#define REGARG_LASTGPR		RID_R11
+#define REGARG_NUMGPR		8
+#endif
+#if LJ_ABI_SOFTFP
+#define REGARG_FIRSTFPR		0
+#define REGARG_LASTFPR		0
+#define REGARG_NUMFPR		0
+#else
+#define REGARG_FIRSTFPR		RID_F12
+#if LJ_32
+#define REGARG_LASTFPR		RID_F14
+#define REGARG_NUMFPR		2
+#else
+#define REGARG_LASTFPR		RID_F19
+#define REGARG_NUMFPR		8
+#endif
+#endif
+
+/* -- Spill slots --------------------------------------------------------- */
+
+/* Spill slots are 32 bit wide. An even/odd pair is used for FPRs.
+**
+** SPS_FIXED: Available fixed spill slots in interpreter frame.
+** This definition must match with the *.dasc file(s).
+**
+** SPS_FIRST: First spill slot for general use.
+*/
+#if LJ_32
+#define SPS_FIXED	5
+#else
+#define SPS_FIXED	4
+#endif
+#define SPS_FIRST	4
+
+#define SPOFS_TMP	0
+
+#define sps_scale(slot)		(4 * (int32_t)(slot))
+#define sps_align(slot)		(((slot) - SPS_FIXED + 1) & ~1)
+
+/* -- Exit state ---------------------------------------------------------- */
+
+/* This definition must match with the *.dasc file(s). */
+typedef struct {
+#if !LJ_SOFTFP
+  lua_Number fpr[RID_NUM_FPR];	/* Floating-point registers. */
+#endif
+  intptr_t gpr[RID_NUM_GPR];	/* General-purpose registers. */
+  int32_t spill[256];		/* Spill slots. */
+} ExitState;
+
+/* Highest exit + 1 indicates stack check. */
+#define EXITSTATE_CHECKEXIT	1
+
+/* Return the address of a per-trace exit stub. */
+static LJ_AINLINE uint32_t *exitstub_trace_addr_(uint32_t *p)
+{
+  while (*p == 0x00000000) p++;  /* Skip MIPSI_NOP. */
+  return p;
+}
+/* Avoid dependence on lj_jit.h if only including lj_target.h. */
+#define exitstub_trace_addr(T, exitno) \
+  exitstub_trace_addr_((MCode *)((char *)(T)->mcode + (T)->szmcode))
+
+/* -- Instructions -------------------------------------------------------- */
+
+/* Instruction fields. */
+#define MIPSF_S(r)	((r) << 21)
+#define MIPSF_T(r)	((r) << 16)
+#define MIPSF_D(r)	((r) << 11)
+#define MIPSF_R(r)	((r) << 21)
+#define MIPSF_H(r)	((r) << 16)
+#define MIPSF_G(r)	((r) << 11)
+#define MIPSF_F(r)	((r) << 6)
+#define MIPSF_A(n)	((n) << 6)
+#define MIPSF_M(n)	((n) << 11)
+#define MIPSF_L(n)	((n) << 6)
+
+typedef enum MIPSIns {
+  MIPSI_D = 0x38,
+  MIPSI_DV = 0x10,
+  MIPSI_D32 = 0x3c,
+  /* Integer instructions. */
+  MIPSI_MOVE = 0x00000025,
+  MIPSI_NOP = 0x00000000,
+
+  MIPSI_LI = 0x24000000,
+  MIPSI_LU = 0x34000000,
+  MIPSI_LUI = 0x3c000000,
+
+  MIPSI_AND = 0x00000024,
+  MIPSI_ANDI = 0x30000000,
+  MIPSI_OR = 0x00000025,
+  MIPSI_ORI = 0x34000000,
+  MIPSI_XOR = 0x00000026,
+  MIPSI_XORI = 0x38000000,
+  MIPSI_NOR = 0x00000027,
+
+  MIPSI_SLT = 0x0000002a,
+  MIPSI_SLTU = 0x0000002b,
+  MIPSI_SLTI = 0x28000000,
+  MIPSI_SLTIU = 0x2c000000,
+
+  MIPSI_ADDU = 0x00000021,
+  MIPSI_ADDIU = 0x24000000,
+  MIPSI_SUB = 0x00000022,
+  MIPSI_SUBU = 0x00000023,
+
+#if !LJ_TARGET_MIPSR6
+  MIPSI_MUL = 0x70000002,
+  MIPSI_DIV = 0x0000001a,
+  MIPSI_DIVU = 0x0000001b,
+
+  MIPSI_MOVZ = 0x0000000a,
+  MIPSI_MOVN = 0x0000000b,
+  MIPSI_MFHI = 0x00000010,
+  MIPSI_MFLO = 0x00000012,
+  MIPSI_MULT = 0x00000018,
+#else
+  MIPSI_MUL = 0x00000098,
+  MIPSI_MUH = 0x000000d8,
+  MIPSI_DIV = 0x0000009a,
+  MIPSI_DIVU = 0x0000009b,
+
+  MIPSI_SELEQZ = 0x00000035,
+  MIPSI_SELNEZ = 0x00000037,
+#endif
+
+  MIPSI_SLL = 0x00000000,
+  MIPSI_SRL = 0x00000002,
+  MIPSI_SRA = 0x00000003,
+  MIPSI_ROTR = 0x00200002,	/* MIPSXXR2 */
+  MIPSI_DROTR = 0x0020003a,
+  MIPSI_DROTR32 = 0x0020003e,
+  MIPSI_SLLV = 0x00000004,
+  MIPSI_SRLV = 0x00000006,
+  MIPSI_SRAV = 0x00000007,
+  MIPSI_ROTRV = 0x00000046,	/* MIPSXXR2 */
+  MIPSI_DROTRV = 0x00000056,
+
+  MIPSI_INS = 0x7c000004,	/* MIPSXXR2 */
+
+  MIPSI_SEB = 0x7c000420,	/* MIPSXXR2 */
+  MIPSI_SEH = 0x7c000620,	/* MIPSXXR2 */
+  MIPSI_WSBH = 0x7c0000a0,	/* MIPSXXR2 */
+  MIPSI_DSBH = 0x7c0000a4,
+
+  MIPSI_B = 0x10000000,
+  MIPSI_J = 0x08000000,
+  MIPSI_JAL = 0x0c000000,
+#if !LJ_TARGET_MIPSR6
+  MIPSI_JALX = 0x74000000,
+  MIPSI_JR = 0x00000008,
+#else
+  MIPSI_JR = 0x00000009,
+  MIPSI_BALC = 0xe8000000,
+#endif
+  MIPSI_JALR = 0x0000f809,
+
+  MIPSI_BEQ = 0x10000000,
+  MIPSI_BNE = 0x14000000,
+  MIPSI_BLEZ = 0x18000000,
+  MIPSI_BGTZ = 0x1c000000,
+  MIPSI_BLTZ = 0x04000000,
+  MIPSI_BGEZ = 0x04010000,
+
+  /* Load/store instructions. */
+  MIPSI_LW = 0x8c000000,
+  MIPSI_LD = 0xdc000000,
+  MIPSI_SW = 0xac000000,
+  MIPSI_SD = 0xfc000000,
+  MIPSI_LB = 0x80000000,
+  MIPSI_SB = 0xa0000000,
+  MIPSI_LH = 0x84000000,
+  MIPSI_SH = 0xa4000000,
+  MIPSI_LBU = 0x90000000,
+  MIPSI_LHU = 0x94000000,
+  MIPSI_LWC1 = 0xc4000000,
+  MIPSI_SWC1 = 0xe4000000,
+  MIPSI_LDC1 = 0xd4000000,
+  MIPSI_SDC1 = 0xf4000000,
+
+  /* MIPS64 instructions. */
+  MIPSI_DADD = 0x0000002c,
+  MIPSI_DADDU = 0x0000002d,
+  MIPSI_DADDIU = 0x64000000,
+  MIPSI_DSUB = 0x0000002e,
+  MIPSI_DSUBU = 0x0000002f,
+#if !LJ_TARGET_MIPSR6
+  MIPSI_DDIV = 0x0000001e,
+  MIPSI_DDIVU = 0x0000001f,
+  MIPSI_DMULT = 0x0000001c,
+  MIPSI_DMULTU = 0x0000001d,
+#else
+  MIPSI_DDIV = 0x0000009e,
+  MIPSI_DMOD = 0x000000de,
+  MIPSI_DDIVU = 0x0000009f,
+  MIPSI_DMODU = 0x000000df,
+  MIPSI_DMUL = 0x0000009c,
+  MIPSI_DMUH = 0x000000dc,
+#endif
+
+  MIPSI_DSLL = 0x00000038,
+  MIPSI_DSRL = 0x0000003a,
+  MIPSI_DSLLV = 0x00000014,
+  MIPSI_DSRLV = 0x00000016,
+  MIPSI_DSRA = 0x0000003b,
+  MIPSI_DSRAV = 0x00000017,
+  MIPSI_DSRA32 = 0x0000003f,
+  MIPSI_DSLL32 = 0x0000003c,
+  MIPSI_DSRL32 = 0x0000003e,
+  MIPSI_DSHD = 0x7c000164,
+
+  MIPSI_AADDU = LJ_32 ? MIPSI_ADDU : MIPSI_DADDU,
+  MIPSI_AADDIU = LJ_32 ? MIPSI_ADDIU : MIPSI_DADDIU,
+  MIPSI_ASUBU = LJ_32 ? MIPSI_SUBU : MIPSI_DSUBU,
+  MIPSI_AL = LJ_32 ? MIPSI_LW : MIPSI_LD,
+  MIPSI_AS = LJ_32 ? MIPSI_SW : MIPSI_SD,
+#if LJ_TARGET_MIPSR6
+  MIPSI_LSA = 0x00000005,
+  MIPSI_DLSA = 0x00000015,
+  MIPSI_ALSA = LJ_32 ? MIPSI_LSA : MIPSI_DLSA,
+#endif
+
+  /* Extract/insert instructions. */
+  MIPSI_DEXTM = 0x7c000001,
+  MIPSI_DEXTU = 0x7c000002,
+  MIPSI_DEXT = 0x7c000003,
+  MIPSI_DINSM = 0x7c000005,
+  MIPSI_DINSU = 0x7c000006,
+  MIPSI_DINS = 0x7c000007,
+
+  MIPSI_FLOOR_D = 0x4620000b,
+
+  /* FP instructions. */
+  MIPSI_MOV_S = 0x46000006,
+  MIPSI_MOV_D = 0x46200006,
+#if !LJ_TARGET_MIPSR6
+  MIPSI_MOVT_D = 0x46210011,
+  MIPSI_MOVF_D = 0x46200011,
+#else
+  MIPSI_MIN_D = 0x4620001C,
+  MIPSI_MAX_D = 0x4620001E,
+  MIPSI_SEL_D = 0x46200010,
+#endif
+
+  MIPSI_ABS_D = 0x46200005,
+  MIPSI_NEG_D = 0x46200007,
+
+  MIPSI_ADD_D = 0x46200000,
+  MIPSI_SUB_D = 0x46200001,
+  MIPSI_MUL_D = 0x46200002,
+  MIPSI_DIV_D = 0x46200003,
+  MIPSI_SQRT_D = 0x46200004,
+
+  MIPSI_ADD_S = 0x46000000,
+  MIPSI_SUB_S = 0x46000001,
+
+  MIPSI_CVT_D_S = 0x46000021,
+  MIPSI_CVT_W_S = 0x46000024,
+  MIPSI_CVT_S_D = 0x46200020,
+  MIPSI_CVT_W_D = 0x46200024,
+  MIPSI_CVT_S_W = 0x46800020,
+  MIPSI_CVT_D_W = 0x46800021,
+  MIPSI_CVT_S_L = 0x46a00020,
+  MIPSI_CVT_D_L = 0x46a00021,
+
+  MIPSI_TRUNC_W_S = 0x4600000d,
+  MIPSI_TRUNC_W_D = 0x4620000d,
+  MIPSI_TRUNC_L_S = 0x46000009,
+  MIPSI_TRUNC_L_D = 0x46200009,
+  MIPSI_FLOOR_W_S = 0x4600000f,
+  MIPSI_FLOOR_W_D = 0x4620000f,
+
+  MIPSI_MFC1 = 0x44000000,
+  MIPSI_MTC1 = 0x44800000,
+  MIPSI_DMTC1 = 0x44a00000,
+  MIPSI_DMFC1 = 0x44200000,
+
+#if !LJ_TARGET_MIPSR6
+  MIPSI_BC1F = 0x45000000,
+  MIPSI_BC1T = 0x45010000,
+  MIPSI_C_EQ_D = 0x46200032,
+  MIPSI_C_OLT_S = 0x46000034,
+  MIPSI_C_OLT_D = 0x46200034,
+  MIPSI_C_ULT_D = 0x46200035,
+  MIPSI_C_OLE_D = 0x46200036,
+  MIPSI_C_ULE_D = 0x46200037,
+#else
+  MIPSI_BC1EQZ = 0x45200000,
+  MIPSI_BC1NEZ = 0x45a00000,
+  MIPSI_CMP_EQ_D = 0x46a00002,
+  MIPSI_CMP_LT_S = 0x46800004,
+  MIPSI_CMP_LT_D = 0x46a00004,
+#endif
+
+} MIPSIns;
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_target_ppc.h b/libs/luajit-cmake/luajit/src/lj_target_ppc.h
new file mode 100644
index 0000000..bc9802a
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_target_ppc.h
@@ -0,0 +1,280 @@
+/*
+** Definitions for PPC CPUs.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_TARGET_PPC_H
+#define _LJ_TARGET_PPC_H
+
+/* -- Registers IDs ------------------------------------------------------- */
+
+#define GPRDEF(_) \
+  _(R0) _(SP) _(SYS1) _(R3) _(R4) _(R5) _(R6) _(R7) \
+  _(R8) _(R9) _(R10) _(R11) _(R12) _(SYS2) _(R14) _(R15) \
+  _(R16) _(R17) _(R18) _(R19) _(R20) _(R21) _(R22) _(R23) \
+  _(R24) _(R25) _(R26) _(R27) _(R28) _(R29) _(R30) _(R31)
+#define FPRDEF(_) \
+  _(F0) _(F1) _(F2) _(F3) _(F4) _(F5) _(F6) _(F7) \
+  _(F8) _(F9) _(F10) _(F11) _(F12) _(F13) _(F14) _(F15) \
+  _(F16) _(F17) _(F18) _(F19) _(F20) _(F21) _(F22) _(F23) \
+  _(F24) _(F25) _(F26) _(F27) _(F28) _(F29) _(F30) _(F31)
+#define VRIDDEF(_)
+
+#define RIDENUM(name)	RID_##name,
+
+enum {
+  GPRDEF(RIDENUM)		/* General-purpose registers (GPRs). */
+  FPRDEF(RIDENUM)		/* Floating-point registers (FPRs). */
+  RID_MAX,
+  RID_TMP = RID_R0,
+
+  /* Calling conventions. */
+  RID_RET = RID_R3,
+  RID_RETHI = RID_R3,
+  RID_RETLO = RID_R4,
+  RID_FPRET = RID_F1,
+
+  /* These definitions must match with the *.dasc file(s): */
+  RID_BASE = RID_R14,		/* Interpreter BASE. */
+  RID_LPC = RID_R16,		/* Interpreter PC. */
+  RID_DISPATCH = RID_R17,	/* Interpreter DISPATCH table. */
+  RID_LREG = RID_R18,		/* Interpreter L. */
+  RID_JGL = RID_R31,		/* On-trace: global_State + 32768. */
+
+  /* Register ranges [min, max) and number of registers. */
+  RID_MIN_GPR = RID_R0,
+  RID_MAX_GPR = RID_R31+1,
+  RID_MIN_FPR = RID_F0,
+  RID_MAX_FPR = RID_F31+1,
+  RID_NUM_GPR = RID_MAX_GPR - RID_MIN_GPR,
+  RID_NUM_FPR = RID_MAX_FPR - RID_MIN_FPR
+};
+
+#define RID_NUM_KREF		RID_NUM_GPR
+#define RID_MIN_KREF		RID_R0
+
+/* -- Register sets ------------------------------------------------------- */
+
+/* Make use of all registers, except TMP, SP, SYS1, SYS2 and JGL. */
+#define RSET_FIXED \
+  (RID2RSET(RID_TMP)|RID2RSET(RID_SP)|RID2RSET(RID_SYS1)|\
+   RID2RSET(RID_SYS2)|RID2RSET(RID_JGL))
+#define RSET_GPR	(RSET_RANGE(RID_MIN_GPR, RID_MAX_GPR) - RSET_FIXED)
+#define RSET_FPR	RSET_RANGE(RID_MIN_FPR, RID_MAX_FPR)
+#define RSET_ALL	(RSET_GPR|RSET_FPR)
+#define RSET_INIT	RSET_ALL
+
+#define RSET_SCRATCH_GPR	(RSET_RANGE(RID_R3, RID_R12+1))
+#define RSET_SCRATCH_FPR	(RSET_RANGE(RID_F0, RID_F13+1))
+#define RSET_SCRATCH		(RSET_SCRATCH_GPR|RSET_SCRATCH_FPR)
+#define REGARG_FIRSTGPR		RID_R3
+#define REGARG_LASTGPR		RID_R10
+#define REGARG_NUMGPR		8
+#define REGARG_FIRSTFPR		RID_F1
+#define REGARG_LASTFPR		RID_F8
+#define REGARG_NUMFPR		8
+
+/* -- Spill slots --------------------------------------------------------- */
+
+/* Spill slots are 32 bit wide. An even/odd pair is used for FPRs.
+**
+** SPS_FIXED: Available fixed spill slots in interpreter frame.
+** This definition must match with the *.dasc file(s).
+**
+** SPS_FIRST: First spill slot for general use.
+** [sp+12] tmplo word \
+** [sp+ 8] tmphi word / tmp dword, parameter area for callee
+** [sp+ 4] tmpw, LR of callee
+** [sp+ 0] stack chain
+*/
+#define SPS_FIXED	7
+#define SPS_FIRST	4
+
+/* Stack offsets for temporary slots. Used for FP<->int conversions etc. */
+#define SPOFS_TMPW	4
+#define SPOFS_TMP	8
+#define SPOFS_TMPHI	8
+#define SPOFS_TMPLO	12
+
+#define sps_scale(slot)		(4 * (int32_t)(slot))
+#define sps_align(slot)		(((slot) - SPS_FIXED + 3) & ~3)
+
+/* -- Exit state ---------------------------------------------------------- */
+
+/* This definition must match with the *.dasc file(s). */
+typedef struct {
+  lua_Number fpr[RID_NUM_FPR];	/* Floating-point registers. */
+  intptr_t gpr[RID_NUM_GPR];	/* General-purpose registers. */
+  int32_t spill[256];		/* Spill slots. */
+} ExitState;
+
+/* Highest exit + 1 indicates stack check. */
+#define EXITSTATE_CHECKEXIT	1
+
+/* Return the address of a per-trace exit stub. */
+static LJ_AINLINE uint32_t *exitstub_trace_addr_(uint32_t *p, uint32_t exitno)
+{
+  while (*p == 0x60000000) p++;  /* Skip PPCI_NOP. */
+  return p + 3 + exitno;
+}
+/* Avoid dependence on lj_jit.h if only including lj_target.h. */
+#define exitstub_trace_addr(T, exitno) \
+  exitstub_trace_addr_((MCode *)((char *)(T)->mcode + (T)->szmcode), (exitno))
+
+/* -- Instructions -------------------------------------------------------- */
+
+/* Instruction fields. */
+#define PPCF_CC(cc)	((((cc) & 3) << 16) | (((cc) & 4) << 22))
+#define PPCF_T(r)	((r) << 21)
+#define PPCF_A(r)	((r) << 16)
+#define PPCF_B(r)	((r) << 11)
+#define PPCF_C(r)	((r) << 6)
+#define PPCF_MB(n)	((n) << 6)
+#define PPCF_ME(n)	((n) << 1)
+#define PPCF_Y		0x00200000
+#define PPCF_DOT	0x00000001
+
+typedef enum PPCIns {
+  /* Integer instructions. */
+  PPCI_MR = 0x7c000378,
+  PPCI_NOP = 0x60000000,
+
+  PPCI_LI = 0x38000000,
+  PPCI_LIS = 0x3c000000,
+
+  PPCI_ADD = 0x7c000214,
+  PPCI_ADDC = 0x7c000014,
+  PPCI_ADDO = 0x7c000614,
+  PPCI_ADDE = 0x7c000114,
+  PPCI_ADDZE = 0x7c000194,
+  PPCI_ADDME = 0x7c0001d4,
+  PPCI_ADDI = 0x38000000,
+  PPCI_ADDIS = 0x3c000000,
+  PPCI_ADDIC = 0x30000000,
+  PPCI_ADDICDOT = 0x34000000,
+
+  PPCI_SUBF = 0x7c000050,
+  PPCI_SUBFC = 0x7c000010,
+  PPCI_SUBFO = 0x7c000450,
+  PPCI_SUBFE = 0x7c000110,
+  PPCI_SUBFZE = 0x7c000190,
+  PPCI_SUBFME = 0x7c0001d0,
+  PPCI_SUBFIC = 0x20000000,
+
+  PPCI_NEG = 0x7c0000d0,
+
+  PPCI_AND = 0x7c000038,
+  PPCI_ANDC = 0x7c000078,
+  PPCI_NAND = 0x7c0003b8,
+  PPCI_ANDIDOT = 0x70000000,
+  PPCI_ANDISDOT = 0x74000000,
+
+  PPCI_OR = 0x7c000378,
+  PPCI_NOR = 0x7c0000f8,
+  PPCI_ORI = 0x60000000,
+  PPCI_ORIS = 0x64000000,
+
+  PPCI_XOR = 0x7c000278,
+  PPCI_EQV = 0x7c000238,
+  PPCI_XORI = 0x68000000,
+  PPCI_XORIS = 0x6c000000,
+
+  PPCI_CMPW = 0x7c000000,
+  PPCI_CMPLW = 0x7c000040,
+  PPCI_CMPWI = 0x2c000000,
+  PPCI_CMPLWI = 0x28000000,
+
+  PPCI_MULLW = 0x7c0001d6,
+  PPCI_MULLI = 0x1c000000,
+  PPCI_MULLWO = 0x7c0005d6,
+
+  PPCI_EXTSB = 0x7c000774,
+  PPCI_EXTSH = 0x7c000734,
+
+  PPCI_SLW = 0x7c000030,
+  PPCI_SRW = 0x7c000430,
+  PPCI_SRAW = 0x7c000630,
+  PPCI_SRAWI = 0x7c000670,
+
+  PPCI_RLWNM = 0x5c000000,
+  PPCI_RLWINM = 0x54000000,
+  PPCI_RLWIMI = 0x50000000,
+
+  PPCI_B = 0x48000000,
+  PPCI_BL = 0x48000001,
+  PPCI_BC = 0x40800000,
+  PPCI_BCL = 0x40800001,
+  PPCI_BCTR = 0x4e800420,
+  PPCI_BCTRL = 0x4e800421,
+
+  PPCI_CRANDC = 0x4c000102,
+  PPCI_CRXOR = 0x4c000182,
+  PPCI_CRAND = 0x4c000202,
+  PPCI_CREQV = 0x4c000242,
+  PPCI_CRORC = 0x4c000342,
+  PPCI_CROR = 0x4c000382,
+
+  PPCI_MFLR = 0x7c0802a6,
+  PPCI_MTCTR = 0x7c0903a6,
+
+  PPCI_MCRXR = 0x7c000400,
+
+  /* Load/store instructions. */
+  PPCI_LWZ = 0x80000000,
+  PPCI_LBZ = 0x88000000,
+  PPCI_STW = 0x90000000,
+  PPCI_STB = 0x98000000,
+  PPCI_LHZ = 0xa0000000,
+  PPCI_LHA = 0xa8000000,
+  PPCI_STH = 0xb0000000,
+
+  PPCI_STWU = 0x94000000,
+
+  PPCI_LFS = 0xc0000000,
+  PPCI_LFD = 0xc8000000,
+  PPCI_STFS = 0xd0000000,
+  PPCI_STFD = 0xd8000000,
+
+  PPCI_LWZX = 0x7c00002e,
+  PPCI_LBZX = 0x7c0000ae,
+  PPCI_STWX = 0x7c00012e,
+  PPCI_STBX = 0x7c0001ae,
+  PPCI_LHZX = 0x7c00022e,
+  PPCI_LHAX = 0x7c0002ae,
+  PPCI_STHX = 0x7c00032e,
+
+  PPCI_LWBRX = 0x7c00042c,
+  PPCI_STWBRX = 0x7c00052c,
+
+  PPCI_LFSX = 0x7c00042e,
+  PPCI_LFDX = 0x7c0004ae,
+  PPCI_STFSX = 0x7c00052e,
+  PPCI_STFDX = 0x7c0005ae,
+
+  /* FP instructions. */
+  PPCI_FMR = 0xfc000090,
+  PPCI_FNEG = 0xfc000050,
+  PPCI_FABS = 0xfc000210,
+
+  PPCI_FRSP = 0xfc000018,
+  PPCI_FCTIWZ = 0xfc00001e,
+
+  PPCI_FADD = 0xfc00002a,
+  PPCI_FSUB = 0xfc000028,
+  PPCI_FMUL = 0xfc000032,
+  PPCI_FDIV = 0xfc000024,
+  PPCI_FSQRT = 0xfc00002c,
+
+  PPCI_FMADD = 0xfc00003a,
+  PPCI_FMSUB = 0xfc000038,
+  PPCI_FNMSUB = 0xfc00003c,
+
+  PPCI_FCMPU = 0xfc000000,
+  PPCI_FSEL = 0xfc00002e,
+} PPCIns;
+
+typedef enum PPCCC {
+  CC_GE, CC_LE, CC_NE, CC_NS, CC_LT, CC_GT, CC_EQ, CC_SO
+} PPCCC;
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_target_x86.h b/libs/luajit-cmake/luajit/src/lj_target_x86.h
new file mode 100644
index 0000000..69cb8ca
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_target_x86.h
@@ -0,0 +1,357 @@
+/*
+** Definitions for x86 and x64 CPUs.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_TARGET_X86_H
+#define _LJ_TARGET_X86_H
+
+/* -- Registers IDs ------------------------------------------------------- */
+
+#if LJ_64
+#define GPRDEF(_) \
+  _(EAX) _(ECX) _(EDX) _(EBX) _(ESP) _(EBP) _(ESI) _(EDI) \
+  _(R8D) _(R9D) _(R10D) _(R11D) _(R12D) _(R13D) _(R14D) _(R15D)
+#define FPRDEF(_) \
+  _(XMM0) _(XMM1) _(XMM2) _(XMM3) _(XMM4) _(XMM5) _(XMM6) _(XMM7) \
+  _(XMM8) _(XMM9) _(XMM10) _(XMM11) _(XMM12) _(XMM13) _(XMM14) _(XMM15)
+#else
+#define GPRDEF(_) \
+  _(EAX) _(ECX) _(EDX) _(EBX) _(ESP) _(EBP) _(ESI) _(EDI)
+#define FPRDEF(_) \
+  _(XMM0) _(XMM1) _(XMM2) _(XMM3) _(XMM4) _(XMM5) _(XMM6) _(XMM7)
+#endif
+#define VRIDDEF(_) \
+  _(MRM) _(RIP)
+
+#define RIDENUM(name)	RID_##name,
+
+enum {
+  GPRDEF(RIDENUM)		/* General-purpose registers (GPRs). */
+  FPRDEF(RIDENUM)		/* Floating-point registers (FPRs). */
+  RID_MAX,
+  RID_MRM = RID_MAX,		/* Pseudo-id for ModRM operand. */
+  RID_RIP = RID_MAX+5,		/* Pseudo-id for RIP (x64 only), rm bits = 5. */
+
+  /* Calling conventions. */
+  RID_SP = RID_ESP,
+  RID_RET = RID_EAX,
+#if LJ_64
+  RID_FPRET = RID_XMM0,
+#endif
+  RID_RETLO = RID_EAX,
+  RID_RETHI = RID_EDX,
+
+  /* These definitions must match with the *.dasc file(s): */
+  RID_BASE = RID_EDX,		/* Interpreter BASE. */
+#if LJ_64 && !LJ_ABI_WIN
+  RID_LPC = RID_EBX,		/* Interpreter PC. */
+  RID_DISPATCH = RID_R14D,	/* Interpreter DISPATCH table. */
+#else
+  RID_LPC = RID_ESI,		/* Interpreter PC. */
+  RID_DISPATCH = RID_EBX,	/* Interpreter DISPATCH table. */
+#endif
+
+  /* Register ranges [min, max) and number of registers. */
+  RID_MIN_GPR = RID_EAX,
+  RID_MIN_FPR = RID_XMM0,
+  RID_MAX_GPR = RID_MIN_FPR,
+  RID_MAX_FPR = RID_MAX,
+  RID_NUM_GPR = RID_MAX_GPR - RID_MIN_GPR,
+  RID_NUM_FPR = RID_MAX_FPR - RID_MIN_FPR,
+};
+
+/* -- Register sets ------------------------------------------------------- */
+
+/* Make use of all registers, except the stack pointer (and maybe DISPATCH). */
+#define RSET_GPR	(RSET_RANGE(RID_MIN_GPR, RID_MAX_GPR) \
+			 - RID2RSET(RID_ESP) \
+			 - LJ_GC64*RID2RSET(RID_DISPATCH))
+#define RSET_FPR	(RSET_RANGE(RID_MIN_FPR, RID_MAX_FPR))
+#define RSET_ALL	(RSET_GPR|RSET_FPR)
+#define RSET_INIT	RSET_ALL
+
+#if LJ_64
+/* Note: this requires the use of FORCE_REX! */
+#define RSET_GPR8	RSET_GPR
+#else
+#define RSET_GPR8	(RSET_RANGE(RID_EAX, RID_EBX+1))
+#endif
+
+/* ABI-specific register sets. */
+#define RSET_ACD	(RID2RSET(RID_EAX)|RID2RSET(RID_ECX)|RID2RSET(RID_EDX))
+#if LJ_64
+#if LJ_ABI_WIN
+/* Windows x64 ABI. */
+#define RSET_SCRATCH \
+  (RSET_ACD|RSET_RANGE(RID_R8D, RID_R11D+1)|RSET_RANGE(RID_XMM0, RID_XMM5+1))
+#define REGARG_GPRS \
+  (RID_ECX|((RID_EDX|((RID_R8D|(RID_R9D<<5))<<5))<<5))
+#define REGARG_NUMGPR	4
+#define REGARG_NUMFPR	4
+#define REGARG_FIRSTFPR	RID_XMM0
+#define REGARG_LASTFPR	RID_XMM3
+#define STACKARG_OFS	(4*8)
+#else
+/* The rest of the civilized x64 world has a common ABI. */
+#define RSET_SCRATCH \
+  (RSET_ACD|RSET_RANGE(RID_ESI, RID_R11D+1)|RSET_FPR)
+#define REGARG_GPRS \
+  (RID_EDI|((RID_ESI|((RID_EDX|((RID_ECX|((RID_R8D|(RID_R9D \
+   <<5))<<5))<<5))<<5))<<5))
+#define REGARG_NUMGPR	6
+#define REGARG_NUMFPR	8
+#define REGARG_FIRSTFPR	RID_XMM0
+#define REGARG_LASTFPR	RID_XMM7
+#define STACKARG_OFS	0
+#endif
+#else
+/* Common x86 ABI. */
+#define RSET_SCRATCH	(RSET_ACD|RSET_FPR)
+#define REGARG_GPRS	(RID_ECX|(RID_EDX<<5))  /* Fastcall only. */
+#define REGARG_NUMGPR	2  /* Fastcall only. */
+#define REGARG_NUMFPR	0
+#define STACKARG_OFS	0
+#endif
+
+#if LJ_64
+/* Prefer the low 8 regs of each type to reduce REX prefixes. */
+#undef rset_picktop
+#define rset_picktop(rs)	(lj_fls(lj_bswap(rs)) ^ 0x18)
+#endif
+
+/* -- Spill slots --------------------------------------------------------- */
+
+/* Spill slots are 32 bit wide. An even/odd pair is used for FPRs.
+**
+** SPS_FIXED: Available fixed spill slots in interpreter frame.
+** This definition must match with the *.dasc file(s).
+**
+** SPS_FIRST: First spill slot for general use. Reserve min. two 32 bit slots.
+*/
+#if LJ_64
+#if LJ_ABI_WIN
+#define SPS_FIXED	(4*2)
+#define SPS_FIRST	(4*2)	/* Don't use callee register save area. */
+#else
+#if LJ_GC64
+#define SPS_FIXED	2
+#else
+#define SPS_FIXED	4
+#endif
+#define SPS_FIRST	2
+#endif
+#else
+#define SPS_FIXED	6
+#define SPS_FIRST	2
+#endif
+
+#define SPOFS_TMP	0
+
+#define sps_scale(slot)		(4 * (int32_t)(slot))
+#define sps_align(slot)		(((slot) - SPS_FIXED + 3) & ~3)
+
+/* -- Exit state ---------------------------------------------------------- */
+
+/* This definition must match with the *.dasc file(s). */
+typedef struct {
+  lua_Number fpr[RID_NUM_FPR];	/* Floating-point registers. */
+  intptr_t gpr[RID_NUM_GPR];	/* General-purpose registers. */
+  int32_t spill[256];		/* Spill slots. */
+} ExitState;
+
+/* Limited by the range of a short fwd jump (127): (2+2)*(32-1)-2 = 122. */
+#define EXITSTUB_SPACING	(2+2)
+#define EXITSTUBS_PER_GROUP	32
+
+#define EXITTRACE_VMSTATE	1	/* g->vmstate has traceno on exit. */
+
+/* -- x86 ModRM operand encoding ------------------------------------------ */
+
+typedef enum {
+  XM_OFS0 = 0x00, XM_OFS8 = 0x40, XM_OFS32 = 0x80, XM_REG = 0xc0,
+  XM_SCALE1 = 0x00, XM_SCALE2 = 0x40, XM_SCALE4 = 0x80, XM_SCALE8 = 0xc0,
+  XM_MASK = 0xc0
+} x86Mode;
+
+/* Structure to hold variable ModRM operand. */
+typedef struct {
+  int32_t ofs;		/* Offset. */
+  uint8_t base;		/* Base register or RID_NONE. */
+  uint8_t idx;		/* Index register or RID_NONE. */
+  uint8_t scale;	/* Index scale (XM_SCALE1 .. XM_SCALE8). */
+} x86ModRM;
+
+/* -- Opcodes ------------------------------------------------------------- */
+
+/* Macros to construct variable-length x86 opcodes. -(len+1) is in LSB. */
+#define XO_(o)		((uint32_t)(0x0000fe + (0x##o<<24)))
+#define XO_FPU(a,b)	((uint32_t)(0x00fd + (0x##a<<16)+(0x##b<<24)))
+#define XO_0f(o)	((uint32_t)(0x0f00fd + (0x##o<<24)))
+#define XO_66(o)	((uint32_t)(0x6600fd + (0x##o<<24)))
+#define XO_660f(o)	((uint32_t)(0x0f66fc + (0x##o<<24)))
+#define XO_f20f(o)	((uint32_t)(0x0ff2fc + (0x##o<<24)))
+#define XO_f30f(o)	((uint32_t)(0x0ff3fc + (0x##o<<24)))
+
+#define XV_660f38(o)	((uint32_t)(0x79e2c4 + (0x##o<<24)))
+#define XV_f20f38(o)	((uint32_t)(0x7be2c4 + (0x##o<<24)))
+#define XV_f20f3a(o)	((uint32_t)(0x7be3c4 + (0x##o<<24)))
+#define XV_f30f38(o)	((uint32_t)(0x7ae2c4 + (0x##o<<24)))
+
+/* This list of x86 opcodes is not intended to be complete. Opcodes are only
+** included when needed. Take a look at DynASM or jit.dis_x86 to see the
+** whole mess.
+*/
+typedef enum {
+  /* Fixed length opcodes. XI_* prefix. */
+  XI_O16 =	0x66,
+  XI_NOP =	0x90,
+  XI_XCHGa =	0x90,
+  XI_CALL =	0xe8,
+  XI_JMP =	0xe9,
+  XI_JMPs =	0xeb,
+  XI_PUSH =	0x50, /* Really 50+r. */
+  XI_JCCs =	0x70, /* Really 7x. */
+  XI_JCCn =	0x80, /* Really 0f8x. */
+  XI_LEA =	0x8d,
+  XI_MOVrib =	0xb0, /* Really b0+r. */
+  XI_MOVri =	0xb8, /* Really b8+r. */
+  XI_ARITHib =	0x80,
+  XI_ARITHi =	0x81,
+  XI_ARITHi8 =	0x83,
+  XI_PUSHi8 =	0x6a,
+  XI_TESTb =	0x84,
+  XI_TEST =	0x85,
+  XI_INT3 =	0xcc,
+  XI_MOVmi =	0xc7,
+  XI_GROUP5 =	0xff,
+
+  /* Note: little-endian byte-order! */
+  XI_FLDZ =	0xeed9,
+  XI_FLD1 =	0xe8d9,
+  XI_FDUP =	0xc0d9,  /* Really fld st0. */
+  XI_FPOP =	0xd8dd,  /* Really fstp st0. */
+  XI_FPOP1 =	0xd9dd,  /* Really fstp st1. */
+  XI_FRNDINT =	0xfcd9,
+  XI_FSCALE =	0xfdd9,
+  XI_FYL2X =	0xf1d9,
+
+  /* VEX-encoded instructions. XV_* prefix. */
+  XV_RORX =	XV_f20f3a(f0),
+  XV_SARX =	XV_f30f38(f7),
+  XV_SHLX =	XV_660f38(f7),
+  XV_SHRX =	XV_f20f38(f7),
+
+  /* Variable-length opcodes. XO_* prefix. */
+  XO_OR =	XO_(0b),
+  XO_MOV =	XO_(8b),
+  XO_MOVto =	XO_(89),
+  XO_MOVtow =	XO_66(89),
+  XO_MOVtob =	XO_(88),
+  XO_MOVmi =	XO_(c7),
+  XO_MOVmib =	XO_(c6),
+  XO_LEA =	XO_(8d),
+  XO_ARITHib =	XO_(80),
+  XO_ARITHi =	XO_(81),
+  XO_ARITHi8 =	XO_(83),
+  XO_ARITHiw8 =	XO_66(83),
+  XO_SHIFTi =	XO_(c1),
+  XO_SHIFT1 =	XO_(d1),
+  XO_SHIFTcl =	XO_(d3),
+  XO_IMUL =	XO_0f(af),
+  XO_IMULi =	XO_(69),
+  XO_IMULi8 =	XO_(6b),
+  XO_CMP =	XO_(3b),
+  XO_TESTb =	XO_(84),
+  XO_TEST =	XO_(85),
+  XO_GROUP3b =	XO_(f6),
+  XO_GROUP3 =	XO_(f7),
+  XO_GROUP5b =	XO_(fe),
+  XO_GROUP5 =	XO_(ff),
+  XO_MOVZXb =	XO_0f(b6),
+  XO_MOVZXw =	XO_0f(b7),
+  XO_MOVSXb =	XO_0f(be),
+  XO_MOVSXw =	XO_0f(bf),
+  XO_MOVSXd =	XO_(63),
+  XO_BSWAP =	XO_0f(c8),
+  XO_CMOV =	XO_0f(40),
+
+  XO_MOVSD =	XO_f20f(10),
+  XO_MOVSDto =	XO_f20f(11),
+  XO_MOVSS =	XO_f30f(10),
+  XO_MOVSSto =	XO_f30f(11),
+  XO_MOVLPD =	XO_660f(12),
+  XO_MOVAPS =	XO_0f(28),
+  XO_XORPS =	XO_0f(57),
+  XO_ANDPS =	XO_0f(54),
+  XO_ADDSD =	XO_f20f(58),
+  XO_SUBSD =	XO_f20f(5c),
+  XO_MULSD =	XO_f20f(59),
+  XO_DIVSD =	XO_f20f(5e),
+  XO_SQRTSD =	XO_f20f(51),
+  XO_MINSD =	XO_f20f(5d),
+  XO_MAXSD =	XO_f20f(5f),
+  XO_ROUNDSD =	0x0b3a0ffc,  /* Really 66 0f 3a 0b. See asm_fpmath. */
+  XO_UCOMISD =	XO_660f(2e),
+  XO_CVTSI2SD =	XO_f20f(2a),
+  XO_CVTTSD2SI=	XO_f20f(2c),
+  XO_CVTSI2SS =	XO_f30f(2a),
+  XO_CVTTSS2SI=	XO_f30f(2c),
+  XO_CVTSS2SD =	XO_f30f(5a),
+  XO_CVTSD2SS =	XO_f20f(5a),
+  XO_ADDSS =	XO_f30f(58),
+  XO_MOVD =	XO_660f(6e),
+  XO_MOVDto =	XO_660f(7e),
+
+  XO_FLDd =	XO_(d9), XOg_FLDd = 0,
+  XO_FLDq =	XO_(dd), XOg_FLDq = 0,
+  XO_FILDd =	XO_(db), XOg_FILDd = 0,
+  XO_FILDq =	XO_(df), XOg_FILDq = 5,
+  XO_FSTPd =	XO_(d9), XOg_FSTPd = 3,
+  XO_FSTPq =	XO_(dd), XOg_FSTPq = 3,
+  XO_FISTPq =	XO_(df), XOg_FISTPq = 7,
+  XO_FISTTPq =	XO_(dd), XOg_FISTTPq = 1,
+  XO_FADDq =	XO_(dc), XOg_FADDq = 0,
+  XO_FLDCW =	XO_(d9), XOg_FLDCW = 5,
+  XO_FNSTCW =	XO_(d9), XOg_FNSTCW = 7
+} x86Op;
+
+/* x86 opcode groups. */
+typedef uint32_t x86Group;
+
+#define XG_(i8, i, g)	((x86Group)(((i8) << 16) + ((i) << 8) + (g)))
+#define XG_ARITHi(g)	XG_(XI_ARITHi8, XI_ARITHi, g)
+#define XG_TOXOi(xg)	((x86Op)(0x000000fe + (((xg)<<16) & 0xff000000)))
+#define XG_TOXOi8(xg)	((x86Op)(0x000000fe + (((xg)<<8) & 0xff000000)))
+
+#define XO_ARITH(a)	((x86Op)(0x030000fe + ((a)<<27)))
+#define XO_ARITHw(a)	((x86Op)(0x036600fd + ((a)<<27)))
+
+typedef enum {
+  XOg_ADD, XOg_OR, XOg_ADC, XOg_SBB, XOg_AND, XOg_SUB, XOg_XOR, XOg_CMP,
+  XOg_X_IMUL
+} x86Arith;
+
+typedef enum {
+  XOg_ROL, XOg_ROR, XOg_RCL, XOg_RCR, XOg_SHL, XOg_SHR, XOg_SAL, XOg_SAR
+} x86Shift;
+
+typedef enum {
+  XOg_TEST, XOg_TEST_, XOg_NOT, XOg_NEG, XOg_MUL, XOg_IMUL, XOg_DIV, XOg_IDIV
+} x86Group3;
+
+typedef enum {
+  XOg_INC, XOg_DEC, XOg_CALL, XOg_CALLfar, XOg_JMP, XOg_JMPfar, XOg_PUSH
+} x86Group5;
+
+/* x86 condition codes. */
+typedef enum {
+  CC_O, CC_NO, CC_B, CC_NB, CC_E, CC_NE, CC_BE, CC_NBE,
+  CC_S, CC_NS, CC_P, CC_NP, CC_L, CC_NL, CC_LE, CC_NLE,
+  CC_C = CC_B, CC_NAE = CC_C, CC_NC = CC_NB, CC_AE = CC_NB,
+  CC_Z = CC_E, CC_NZ = CC_NE, CC_NA = CC_BE, CC_A = CC_NBE,
+  CC_PE = CC_P, CC_PO = CC_NP, CC_NGE = CC_L, CC_GE = CC_NL,
+  CC_NG = CC_LE, CC_G = CC_NLE
+} x86CC;
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_trace.c b/libs/luajit-cmake/luajit/src/lj_trace.c
new file mode 100644
index 0000000..c232939
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_trace.c
@@ -0,0 +1,987 @@
+/*
+** Trace management.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_trace_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_str.h"
+#include "lj_frame.h"
+#include "lj_state.h"
+#include "lj_bc.h"
+#include "lj_ir.h"
+#include "lj_jit.h"
+#include "lj_iropt.h"
+#include "lj_mcode.h"
+#include "lj_trace.h"
+#include "lj_snap.h"
+#include "lj_gdbjit.h"
+#include "lj_record.h"
+#include "lj_asm.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+#include "lj_vmevent.h"
+#include "lj_target.h"
+#include "lj_prng.h"
+
+/* -- Error handling ------------------------------------------------------ */
+
+/* Synchronous abort with error message. */
+void lj_trace_err(jit_State *J, TraceError e)
+{
+  setnilV(&J->errinfo);  /* No error info. */
+  setintV(J->L->top++, (int32_t)e);
+  lj_err_throw(J->L, LUA_ERRRUN);
+}
+
+/* Synchronous abort with error message and error info. */
+void lj_trace_err_info(jit_State *J, TraceError e)
+{
+  setintV(J->L->top++, (int32_t)e);
+  lj_err_throw(J->L, LUA_ERRRUN);
+}
+
+/* -- Trace management ---------------------------------------------------- */
+
+/* The current trace is first assembled in J->cur. The variable length
+** arrays point to shared, growable buffers (J->irbuf etc.). When trace
+** recording ends successfully, the current trace and its data structures
+** are copied to a new (compact) GCtrace object.
+*/
+
+/* Find a free trace number. */
+static TraceNo trace_findfree(jit_State *J)
+{
+  MSize osz, lim;
+  if (J->freetrace == 0)
+    J->freetrace = 1;
+  for (; J->freetrace < J->sizetrace; J->freetrace++)
+    if (traceref(J, J->freetrace) == NULL)
+      return J->freetrace++;
+  /* Need to grow trace array. */
+  lim = (MSize)J->param[JIT_P_maxtrace] + 1;
+  if (lim < 2) lim = 2; else if (lim > 65535) lim = 65535;
+  osz = J->sizetrace;
+  if (osz >= lim)
+    return 0;  /* Too many traces. */
+  lj_mem_growvec(J->L, J->trace, J->sizetrace, lim, GCRef);
+  for (; osz < J->sizetrace; osz++)
+    setgcrefnull(J->trace[osz]);
+  return J->freetrace;
+}
+
+#define TRACE_APPENDVEC(field, szfield, tp) \
+  T->field = (tp *)p; \
+  memcpy(p, J->cur.field, J->cur.szfield*sizeof(tp)); \
+  p += J->cur.szfield*sizeof(tp);
+
+#ifdef LUAJIT_USE_PERFTOOLS
+/*
+** Create symbol table of JIT-compiled code. For use with Linux perf tools.
+** Example usage:
+**   perf record -f -e cycles luajit test.lua
+**   perf report -s symbol
+**   rm perf.data /tmp/perf-*.map
+*/
+#include <stdio.h>
+#include <unistd.h>
+
+static void perftools_addtrace(GCtrace *T)
+{
+  static FILE *fp;
+  GCproto *pt = &gcref(T->startpt)->pt;
+  const BCIns *startpc = mref(T->startpc, const BCIns);
+  const char *name = proto_chunknamestr(pt);
+  BCLine lineno;
+  if (name[0] == '@' || name[0] == '=')
+    name++;
+  else
+    name = "(string)";
+  lj_assertX(startpc >= proto_bc(pt) && startpc < proto_bc(pt) + pt->sizebc,
+	     "trace PC out of range");
+  lineno = lj_debug_line(pt, proto_bcpos(pt, startpc));
+  if (!fp) {
+    char fname[40];
+    sprintf(fname, "/tmp/perf-%d.map", getpid());
+    if (!(fp = fopen(fname, "w"))) return;
+    setlinebuf(fp);
+  }
+  fprintf(fp, "%lx %x TRACE_%d::%s:%u\n",
+	  (long)T->mcode, T->szmcode, T->traceno, name, lineno);
+}
+#endif
+
+/* Allocate space for copy of T. */
+GCtrace * LJ_FASTCALL lj_trace_alloc(lua_State *L, GCtrace *T)
+{
+  size_t sztr = ((sizeof(GCtrace)+7)&~7);
+  size_t szins = (T->nins-T->nk)*sizeof(IRIns);
+  size_t sz = sztr + szins +
+	      T->nsnap*sizeof(SnapShot) +
+	      T->nsnapmap*sizeof(SnapEntry);
+  GCtrace *T2 = lj_mem_newt(L, (MSize)sz, GCtrace);
+  char *p = (char *)T2 + sztr;
+  T2->gct = ~LJ_TTRACE;
+  T2->marked = 0;
+  T2->traceno = 0;
+  T2->ir = (IRIns *)p - T->nk;
+  T2->nins = T->nins;
+  T2->nk = T->nk;
+  T2->nsnap = T->nsnap;
+  T2->nsnapmap = T->nsnapmap;
+  memcpy(p, T->ir + T->nk, szins);
+  return T2;
+}
+
+/* Save current trace by copying and compacting it. */
+static void trace_save(jit_State *J, GCtrace *T)
+{
+  size_t sztr = ((sizeof(GCtrace)+7)&~7);
+  size_t szins = (J->cur.nins-J->cur.nk)*sizeof(IRIns);
+  char *p = (char *)T + sztr;
+  memcpy(T, &J->cur, sizeof(GCtrace));
+  setgcrefr(T->nextgc, J2G(J)->gc.root);
+  setgcrefp(J2G(J)->gc.root, T);
+  newwhite(J2G(J), T);
+  T->gct = ~LJ_TTRACE;
+  T->ir = (IRIns *)p - J->cur.nk;  /* The IR has already been copied above. */
+  p += szins;
+  TRACE_APPENDVEC(snap, nsnap, SnapShot)
+  TRACE_APPENDVEC(snapmap, nsnapmap, SnapEntry)
+  J->cur.traceno = 0;
+  J->curfinal = NULL;
+  setgcrefp(J->trace[T->traceno], T);
+  lj_gc_barriertrace(J2G(J), T->traceno);
+  lj_gdbjit_addtrace(J, T);
+#ifdef LUAJIT_USE_PERFTOOLS
+  perftools_addtrace(T);
+#endif
+}
+
+void LJ_FASTCALL lj_trace_free(global_State *g, GCtrace *T)
+{
+  jit_State *J = G2J(g);
+  if (T->traceno) {
+    lj_gdbjit_deltrace(J, T);
+    if (T->traceno < J->freetrace)
+      J->freetrace = T->traceno;
+    setgcrefnull(J->trace[T->traceno]);
+  }
+  lj_mem_free(g, T,
+    ((sizeof(GCtrace)+7)&~7) + (T->nins-T->nk)*sizeof(IRIns) +
+    T->nsnap*sizeof(SnapShot) + T->nsnapmap*sizeof(SnapEntry));
+}
+
+/* Re-enable compiling a prototype by unpatching any modified bytecode. */
+void lj_trace_reenableproto(GCproto *pt)
+{
+  if ((pt->flags & PROTO_ILOOP)) {
+    BCIns *bc = proto_bc(pt);
+    BCPos i, sizebc = pt->sizebc;
+    pt->flags &= ~PROTO_ILOOP;
+    if (bc_op(bc[0]) == BC_IFUNCF)
+      setbc_op(&bc[0], BC_FUNCF);
+    for (i = 1; i < sizebc; i++) {
+      BCOp op = bc_op(bc[i]);
+      if (op == BC_IFORL || op == BC_IITERL || op == BC_ILOOP)
+	setbc_op(&bc[i], (int)op+(int)BC_LOOP-(int)BC_ILOOP);
+    }
+  }
+}
+
+/* Unpatch the bytecode modified by a root trace. */
+static void trace_unpatch(jit_State *J, GCtrace *T)
+{
+  BCOp op = bc_op(T->startins);
+  BCIns *pc = mref(T->startpc, BCIns);
+  UNUSED(J);
+  if (op == BC_JMP)
+    return;  /* No need to unpatch branches in parent traces (yet). */
+  switch (bc_op(*pc)) {
+  case BC_JFORL:
+    lj_assertJ(traceref(J, bc_d(*pc)) == T, "JFORL references other trace");
+    *pc = T->startins;
+    pc += bc_j(T->startins);
+    lj_assertJ(bc_op(*pc) == BC_JFORI, "FORL does not point to JFORI");
+    setbc_op(pc, BC_FORI);
+    break;
+  case BC_JITERL:
+  case BC_JLOOP:
+    lj_assertJ(op == BC_ITERL || op == BC_ITERN || op == BC_LOOP ||
+	       bc_isret(op), "bad original bytecode %d", op);
+    *pc = T->startins;
+    break;
+  case BC_JMP:
+    lj_assertJ(op == BC_ITERL, "bad original bytecode %d", op);
+    pc += bc_j(*pc)+2;
+    if (bc_op(*pc) == BC_JITERL) {
+      lj_assertJ(traceref(J, bc_d(*pc)) == T, "JITERL references other trace");
+      *pc = T->startins;
+    }
+    break;
+  case BC_JFUNCF:
+    lj_assertJ(op == BC_FUNCF, "bad original bytecode %d", op);
+    *pc = T->startins;
+    break;
+  default:  /* Already unpatched. */
+    break;
+  }
+}
+
+/* Flush a root trace. */
+static void trace_flushroot(jit_State *J, GCtrace *T)
+{
+  GCproto *pt = &gcref(T->startpt)->pt;
+  lj_assertJ(T->root == 0, "not a root trace");
+  lj_assertJ(pt != NULL, "trace has no prototype");
+  /* First unpatch any modified bytecode. */
+  trace_unpatch(J, T);
+  /* Unlink root trace from chain anchored in prototype. */
+  if (pt->trace == T->traceno) {  /* Trace is first in chain. Easy. */
+    pt->trace = T->nextroot;
+  } else if (pt->trace) {  /* Otherwise search in chain of root traces. */
+    GCtrace *T2 = traceref(J, pt->trace);
+    if (T2) {
+      for (; T2->nextroot; T2 = traceref(J, T2->nextroot))
+	if (T2->nextroot == T->traceno) {
+	  T2->nextroot = T->nextroot;  /* Unlink from chain. */
+	  break;
+	}
+    }
+  }
+}
+
+/* Flush a trace. Only root traces are considered. */
+void lj_trace_flush(jit_State *J, TraceNo traceno)
+{
+  if (traceno > 0 && traceno < J->sizetrace) {
+    GCtrace *T = traceref(J, traceno);
+    if (T && T->root == 0)
+      trace_flushroot(J, T);
+  }
+}
+
+/* Flush all traces associated with a prototype. */
+void lj_trace_flushproto(global_State *g, GCproto *pt)
+{
+  while (pt->trace != 0)
+    trace_flushroot(G2J(g), traceref(G2J(g), pt->trace));
+}
+
+/* Flush all traces. */
+int lj_trace_flushall(lua_State *L)
+{
+  jit_State *J = L2J(L);
+  ptrdiff_t i;
+  if ((J2G(J)->hookmask & HOOK_GC))
+    return 1;
+  for (i = (ptrdiff_t)J->sizetrace-1; i > 0; i--) {
+    GCtrace *T = traceref(J, i);
+    if (T) {
+      if (T->root == 0)
+	trace_flushroot(J, T);
+      lj_gdbjit_deltrace(J, T);
+      T->traceno = T->link = 0;  /* Blacklist the link for cont_stitch. */
+      setgcrefnull(J->trace[i]);
+    }
+  }
+  J->cur.traceno = 0;
+  J->freetrace = 0;
+  /* Clear penalty cache. */
+  memset(J->penalty, 0, sizeof(J->penalty));
+  /* Free the whole machine code and invalidate all exit stub groups. */
+  lj_mcode_free(J);
+  memset(J->exitstubgroup, 0, sizeof(J->exitstubgroup));
+  lj_vmevent_send(L, TRACE,
+    setstrV(L, L->top++, lj_str_newlit(L, "flush"));
+  );
+  return 0;
+}
+
+/* Initialize JIT compiler state. */
+void lj_trace_initstate(global_State *g)
+{
+  jit_State *J = G2J(g);
+  TValue *tv;
+
+  /* Initialize aligned SIMD constants. */
+  tv = LJ_KSIMD(J, LJ_KSIMD_ABS);
+  tv[0].u64 = U64x(7fffffff,ffffffff);
+  tv[1].u64 = U64x(7fffffff,ffffffff);
+  tv = LJ_KSIMD(J, LJ_KSIMD_NEG);
+  tv[0].u64 = U64x(80000000,00000000);
+  tv[1].u64 = U64x(80000000,00000000);
+
+  /* Initialize 32/64 bit constants. */
+#if LJ_TARGET_X86ORX64
+  J->k64[LJ_K64_TOBIT].u64 = U64x(43380000,00000000);
+#if LJ_32
+  J->k64[LJ_K64_M2P64_31].u64 = U64x(c1e00000,00000000);
+#endif
+  J->k64[LJ_K64_2P64].u64 = U64x(43f00000,00000000);
+  J->k32[LJ_K32_M2P64_31] = LJ_64 ? 0xdf800000 : 0xcf000000;
+#endif
+#if LJ_TARGET_X86ORX64 || LJ_TARGET_MIPS64
+  J->k64[LJ_K64_M2P64].u64 = U64x(c3f00000,00000000);
+#endif
+#if LJ_TARGET_PPC
+  J->k32[LJ_K32_2P52_2P31] = 0x59800004;
+  J->k32[LJ_K32_2P52] = 0x59800000;
+#endif
+#if LJ_TARGET_PPC || LJ_TARGET_MIPS
+  J->k32[LJ_K32_2P31] = 0x4f000000;
+#endif
+#if LJ_TARGET_MIPS
+  J->k64[LJ_K64_2P31].u64 = U64x(41e00000,00000000);
+#if LJ_64
+  J->k64[LJ_K64_2P63].u64 = U64x(43e00000,00000000);
+  J->k32[LJ_K32_2P63] = 0x5f000000;
+  J->k32[LJ_K32_M2P64] = 0xdf800000;
+#endif
+#endif
+}
+
+/* Free everything associated with the JIT compiler state. */
+void lj_trace_freestate(global_State *g)
+{
+  jit_State *J = G2J(g);
+#ifdef LUA_USE_ASSERT
+  {  /* This assumes all traces have already been freed. */
+    ptrdiff_t i;
+    for (i = 1; i < (ptrdiff_t)J->sizetrace; i++)
+      lj_assertG(i == (ptrdiff_t)J->cur.traceno || traceref(J, i) == NULL,
+		 "trace still allocated");
+  }
+#endif
+  lj_mcode_free(J);
+  lj_mem_freevec(g, J->snapmapbuf, J->sizesnapmap, SnapEntry);
+  lj_mem_freevec(g, J->snapbuf, J->sizesnap, SnapShot);
+  lj_mem_freevec(g, J->irbuf + J->irbotlim, J->irtoplim - J->irbotlim, IRIns);
+  lj_mem_freevec(g, J->trace, J->sizetrace, GCRef);
+}
+
+/* -- Penalties and blacklisting ------------------------------------------ */
+
+/* Blacklist a bytecode instruction. */
+static void blacklist_pc(GCproto *pt, BCIns *pc)
+{
+  if (bc_op(*pc) == BC_ITERN) {
+    setbc_op(pc, BC_ITERC);
+    setbc_op(pc+1+bc_j(pc[1]), BC_JMP);
+  } else {
+    setbc_op(pc, (int)bc_op(*pc)+(int)BC_ILOOP-(int)BC_LOOP);
+    pt->flags |= PROTO_ILOOP;
+  }
+}
+
+/* Penalize a bytecode instruction. */
+static void penalty_pc(jit_State *J, GCproto *pt, BCIns *pc, TraceError e)
+{
+  uint32_t i, val = PENALTY_MIN;
+  for (i = 0; i < PENALTY_SLOTS; i++)
+    if (mref(J->penalty[i].pc, const BCIns) == pc) {  /* Cache slot found? */
+      /* First try to bump its hotcount several times. */
+      val = ((uint32_t)J->penalty[i].val << 1) +
+	    (lj_prng_u64(&J2G(J)->prng) & ((1u<<PENALTY_RNDBITS)-1));
+      if (val > PENALTY_MAX) {
+	blacklist_pc(pt, pc);  /* Blacklist it, if that didn't help. */
+	return;
+      }
+      goto setpenalty;
+    }
+  /* Assign a new penalty cache slot. */
+  i = J->penaltyslot;
+  J->penaltyslot = (J->penaltyslot + 1) & (PENALTY_SLOTS-1);
+  setmref(J->penalty[i].pc, pc);
+setpenalty:
+  J->penalty[i].val = (uint16_t)val;
+  J->penalty[i].reason = e;
+  hotcount_set(J2GG(J), pc+1, val);
+}
+
+/* -- Trace compiler state machine ---------------------------------------- */
+
+/* Start tracing. */
+static void trace_start(jit_State *J)
+{
+  lua_State *L;
+  TraceNo traceno;
+
+  if ((J->pt->flags & PROTO_NOJIT)) {  /* JIT disabled for this proto? */
+    if (J->parent == 0 && J->exitno == 0 && bc_op(*J->pc) != BC_ITERN) {
+      /* Lazy bytecode patching to disable hotcount events. */
+      lj_assertJ(bc_op(*J->pc) == BC_FORL || bc_op(*J->pc) == BC_ITERL ||
+		 bc_op(*J->pc) == BC_LOOP || bc_op(*J->pc) == BC_FUNCF,
+		 "bad hot bytecode %d", bc_op(*J->pc));
+      setbc_op(J->pc, (int)bc_op(*J->pc)+(int)BC_ILOOP-(int)BC_LOOP);
+      J->pt->flags |= PROTO_ILOOP;
+    }
+    J->state = LJ_TRACE_IDLE;  /* Silently ignored. */
+    return;
+  }
+
+  /* Get a new trace number. */
+  traceno = trace_findfree(J);
+  if (LJ_UNLIKELY(traceno == 0)) {  /* No free trace? */
+    lj_assertJ((J2G(J)->hookmask & HOOK_GC) == 0,
+	       "recorder called from GC hook");
+    lj_trace_flushall(J->L);
+    J->state = LJ_TRACE_IDLE;  /* Silently ignored. */
+    return;
+  }
+  setgcrefp(J->trace[traceno], &J->cur);
+
+  /* Setup enough of the current trace to be able to send the vmevent. */
+  memset(&J->cur, 0, sizeof(GCtrace));
+  J->cur.traceno = traceno;
+  J->cur.nins = J->cur.nk = REF_BASE;
+  J->cur.ir = J->irbuf;
+  J->cur.snap = J->snapbuf;
+  J->cur.snapmap = J->snapmapbuf;
+  J->mergesnap = 0;
+  J->needsnap = 0;
+  J->bcskip = 0;
+  J->guardemit.irt = 0;
+  J->postproc = LJ_POST_NONE;
+  lj_resetsplit(J);
+  J->retryrec = 0;
+  J->ktrace = 0;
+  setgcref(J->cur.startpt, obj2gco(J->pt));
+
+  L = J->L;
+  lj_vmevent_send(L, TRACE,
+    setstrV(L, L->top++, lj_str_newlit(L, "start"));
+    setintV(L->top++, traceno);
+    setfuncV(L, L->top++, J->fn);
+    setintV(L->top++, proto_bcpos(J->pt, J->pc));
+    if (J->parent) {
+      setintV(L->top++, J->parent);
+      setintV(L->top++, J->exitno);
+    } else {
+      BCOp op = bc_op(*J->pc);
+      if (op == BC_CALLM || op == BC_CALL || op == BC_ITERC) {
+	setintV(L->top++, J->exitno);  /* Parent of stitched trace. */
+	setintV(L->top++, -1);
+      }
+    }
+  );
+  lj_record_setup(J);
+}
+
+/* Stop tracing. */
+static void trace_stop(jit_State *J)
+{
+  BCIns *pc = mref(J->cur.startpc, BCIns);
+  BCOp op = bc_op(J->cur.startins);
+  GCproto *pt = &gcref(J->cur.startpt)->pt;
+  TraceNo traceno = J->cur.traceno;
+  GCtrace *T = J->curfinal;
+  lua_State *L;
+
+  switch (op) {
+  case BC_FORL:
+    setbc_op(pc+bc_j(J->cur.startins), BC_JFORI);  /* Patch FORI, too. */
+    /* fallthrough */
+  case BC_LOOP:
+  case BC_ITERL:
+  case BC_FUNCF:
+    /* Patch bytecode of starting instruction in root trace. */
+    setbc_op(pc, (int)op+(int)BC_JLOOP-(int)BC_LOOP);
+    setbc_d(pc, traceno);
+  addroot:
+    /* Add to root trace chain in prototype. */
+    J->cur.nextroot = pt->trace;
+    pt->trace = (TraceNo1)traceno;
+    break;
+  case BC_ITERN:
+  case BC_RET:
+  case BC_RET0:
+  case BC_RET1:
+    *pc = BCINS_AD(BC_JLOOP, J->cur.snap[0].nslots, traceno);
+    goto addroot;
+  case BC_JMP:
+    /* Patch exit branch in parent to side trace entry. */
+    lj_assertJ(J->parent != 0 && J->cur.root != 0, "not a side trace");
+    lj_asm_patchexit(J, traceref(J, J->parent), J->exitno, J->cur.mcode);
+    /* Avoid compiling a side trace twice (stack resizing uses parent exit). */
+    {
+      SnapShot *snap = &traceref(J, J->parent)->snap[J->exitno];
+      snap->count = SNAPCOUNT_DONE;
+      if (J->cur.topslot > snap->topslot) snap->topslot = J->cur.topslot;
+    }
+    /* Add to side trace chain in root trace. */
+    {
+      GCtrace *root = traceref(J, J->cur.root);
+      root->nchild++;
+      J->cur.nextside = root->nextside;
+      root->nextside = (TraceNo1)traceno;
+    }
+    break;
+  case BC_CALLM:
+  case BC_CALL:
+  case BC_ITERC:
+    /* Trace stitching: patch link of previous trace. */
+    traceref(J, J->exitno)->link = traceno;
+    break;
+  default:
+    lj_assertJ(0, "bad stop bytecode %d", op);
+    break;
+  }
+
+  /* Commit new mcode only after all patching is done. */
+  lj_mcode_commit(J, J->cur.mcode);
+  J->postproc = LJ_POST_NONE;
+  trace_save(J, T);
+
+  L = J->L;
+  lj_vmevent_send(L, TRACE,
+    setstrV(L, L->top++, lj_str_newlit(L, "stop"));
+    setintV(L->top++, traceno);
+    setfuncV(L, L->top++, J->fn);
+  );
+}
+
+/* Start a new root trace for down-recursion. */
+static int trace_downrec(jit_State *J)
+{
+  /* Restart recording at the return instruction. */
+  lj_assertJ(J->pt != NULL, "no active prototype");
+  lj_assertJ(bc_isret(bc_op(*J->pc)), "not at a return bytecode");
+  if (bc_op(*J->pc) == BC_RETM)
+    return 0;  /* NYI: down-recursion with RETM. */
+  J->parent = 0;
+  J->exitno = 0;
+  J->state = LJ_TRACE_RECORD;
+  trace_start(J);
+  return 1;
+}
+
+/* Abort tracing. */
+static int trace_abort(jit_State *J)
+{
+  lua_State *L = J->L;
+  TraceError e = LJ_TRERR_RECERR;
+  TraceNo traceno;
+
+  J->postproc = LJ_POST_NONE;
+  lj_mcode_abort(J);
+  if (J->curfinal) {
+    lj_trace_free(J2G(J), J->curfinal);
+    J->curfinal = NULL;
+  }
+  if (tvisnumber(L->top-1))
+    e = (TraceError)numberVint(L->top-1);
+  if (e == LJ_TRERR_MCODELM) {
+    L->top--;  /* Remove error object */
+    J->state = LJ_TRACE_ASM;
+    return 1;  /* Retry ASM with new MCode area. */
+  }
+  /* Penalize or blacklist starting bytecode instruction. */
+  if (J->parent == 0 && !bc_isret(bc_op(J->cur.startins))) {
+    if (J->exitno == 0) {
+      BCIns *startpc = mref(J->cur.startpc, BCIns);
+      if (e == LJ_TRERR_RETRY)
+	hotcount_set(J2GG(J), startpc+1, 1);  /* Immediate retry. */
+      else
+	penalty_pc(J, &gcref(J->cur.startpt)->pt, startpc, e);
+    } else {
+      traceref(J, J->exitno)->link = J->exitno;  /* Self-link is blacklisted. */
+    }
+  }
+
+  /* Is there anything to abort? */
+  traceno = J->cur.traceno;
+  if (traceno) {
+    ptrdiff_t errobj = savestack(L, L->top-1);  /* Stack may be resized. */
+    J->cur.link = 0;
+    J->cur.linktype = LJ_TRLINK_NONE;
+    lj_vmevent_send(L, TRACE,
+      TValue *frame;
+      const BCIns *pc;
+      GCfunc *fn;
+      setstrV(L, L->top++, lj_str_newlit(L, "abort"));
+      setintV(L->top++, traceno);
+      /* Find original Lua function call to generate a better error message. */
+      frame = J->L->base-1;
+      pc = J->pc;
+      while (!isluafunc(frame_func(frame))) {
+	pc = (frame_iscont(frame) ? frame_contpc(frame) : frame_pc(frame)) - 1;
+	frame = frame_prev(frame);
+      }
+      fn = frame_func(frame);
+      setfuncV(L, L->top++, fn);
+      setintV(L->top++, proto_bcpos(funcproto(fn), pc));
+      copyTV(L, L->top++, restorestack(L, errobj));
+      copyTV(L, L->top++, &J->errinfo);
+    );
+    /* Drop aborted trace after the vmevent (which may still access it). */
+    setgcrefnull(J->trace[traceno]);
+    if (traceno < J->freetrace)
+      J->freetrace = traceno;
+    J->cur.traceno = 0;
+  }
+  L->top--;  /* Remove error object */
+  if (e == LJ_TRERR_DOWNREC)
+    return trace_downrec(J);
+  else if (e == LJ_TRERR_MCODEAL)
+    lj_trace_flushall(L);
+  return 0;
+}
+
+/* Perform pending re-patch of a bytecode instruction. */
+static LJ_AINLINE void trace_pendpatch(jit_State *J, int force)
+{
+  if (LJ_UNLIKELY(J->patchpc)) {
+    if (force || J->bcskip == 0) {
+      *J->patchpc = J->patchins;
+      J->patchpc = NULL;
+    } else {
+      J->bcskip = 0;
+    }
+  }
+}
+
+/* State machine for the trace compiler. Protected callback. */
+static TValue *trace_state(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  jit_State *J = (jit_State *)ud;
+  UNUSED(dummy);
+  do {
+  retry:
+    switch (J->state) {
+    case LJ_TRACE_START:
+      J->state = LJ_TRACE_RECORD;  /* trace_start() may change state. */
+      trace_start(J);
+      lj_dispatch_update(J2G(J));
+      if (J->state != LJ_TRACE_RECORD_1ST)
+	break;
+      /* fallthrough */
+
+    case LJ_TRACE_RECORD_1ST:
+      J->state = LJ_TRACE_RECORD;
+      /* fallthrough */
+    case LJ_TRACE_RECORD:
+      trace_pendpatch(J, 0);
+      setvmstate(J2G(J), RECORD);
+      lj_vmevent_send_(L, RECORD,
+	/* Save/restore state for trace recorder. */
+	TValue savetv = J2G(J)->tmptv;
+	TValue savetv2 = J2G(J)->tmptv2;
+	TraceNo parent = J->parent;
+	ExitNo exitno = J->exitno;
+	setintV(L->top++, J->cur.traceno);
+	setfuncV(L, L->top++, J->fn);
+	setintV(L->top++, J->pt ? (int32_t)proto_bcpos(J->pt, J->pc) : -1);
+	setintV(L->top++, J->framedepth);
+      ,
+	J2G(J)->tmptv = savetv;
+	J2G(J)->tmptv2 = savetv2;
+	J->parent = parent;
+	J->exitno = exitno;
+      );
+      lj_record_ins(J);
+      break;
+
+    case LJ_TRACE_END:
+      trace_pendpatch(J, 1);
+      J->loopref = 0;
+      if ((J->flags & JIT_F_OPT_LOOP) &&
+	  J->cur.link == J->cur.traceno && J->framedepth + J->retdepth == 0) {
+	setvmstate(J2G(J), OPT);
+	lj_opt_dce(J);
+	if (lj_opt_loop(J)) {  /* Loop optimization failed? */
+	  J->cur.link = 0;
+	  J->cur.linktype = LJ_TRLINK_NONE;
+	  J->loopref = J->cur.nins;
+	  J->state = LJ_TRACE_RECORD;  /* Try to continue recording. */
+	  break;
+	}
+	J->loopref = J->chain[IR_LOOP];  /* Needed by assembler. */
+      }
+      lj_opt_split(J);
+      lj_opt_sink(J);
+      if (!J->loopref) J->cur.snap[J->cur.nsnap-1].count = SNAPCOUNT_DONE;
+      J->state = LJ_TRACE_ASM;
+      break;
+
+    case LJ_TRACE_ASM:
+      setvmstate(J2G(J), ASM);
+      lj_asm_trace(J, &J->cur);
+      trace_stop(J);
+      setvmstate(J2G(J), INTERP);
+      J->state = LJ_TRACE_IDLE;
+      lj_dispatch_update(J2G(J));
+      return NULL;
+
+    default:  /* Trace aborted asynchronously. */
+      setintV(L->top++, (int32_t)LJ_TRERR_RECERR);
+      /* fallthrough */
+    case LJ_TRACE_ERR:
+      trace_pendpatch(J, 1);
+      if (trace_abort(J))
+	goto retry;
+      setvmstate(J2G(J), INTERP);
+      J->state = LJ_TRACE_IDLE;
+      lj_dispatch_update(J2G(J));
+      return NULL;
+    }
+  } while (J->state > LJ_TRACE_RECORD);
+  return NULL;
+}
+
+/* -- Event handling ------------------------------------------------------ */
+
+/* A bytecode instruction is about to be executed. Record it. */
+void lj_trace_ins(jit_State *J, const BCIns *pc)
+{
+  /* Note: J->L must already be set. pc is the true bytecode PC here. */
+  J->pc = pc;
+  J->fn = curr_func(J->L);
+  J->pt = isluafunc(J->fn) ? funcproto(J->fn) : NULL;
+  while (lj_vm_cpcall(J->L, NULL, (void *)J, trace_state) != 0)
+    J->state = LJ_TRACE_ERR;
+}
+
+/* A hotcount triggered. Start recording a root trace. */
+void LJ_FASTCALL lj_trace_hot(jit_State *J, const BCIns *pc)
+{
+  /* Note: pc is the interpreter bytecode PC here. It's offset by 1. */
+  ERRNO_SAVE
+  /* Reset hotcount. */
+  hotcount_set(J2GG(J), pc, J->param[JIT_P_hotloop]*HOTCOUNT_LOOP);
+  /* Only start a new trace if not recording or inside __gc call or vmevent. */
+  if (J->state == LJ_TRACE_IDLE &&
+      !(J2G(J)->hookmask & (HOOK_GC|HOOK_VMEVENT))) {
+    J->parent = 0;  /* Root trace. */
+    J->exitno = 0;
+    J->state = LJ_TRACE_START;
+    lj_trace_ins(J, pc-1);
+  }
+  ERRNO_RESTORE
+}
+
+/* Check for a hot side exit. If yes, start recording a side trace. */
+static void trace_hotside(jit_State *J, const BCIns *pc)
+{
+  SnapShot *snap = &traceref(J, J->parent)->snap[J->exitno];
+  if (!(J2G(J)->hookmask & (HOOK_GC|HOOK_VMEVENT)) &&
+      isluafunc(curr_func(J->L)) &&
+      snap->count != SNAPCOUNT_DONE &&
+      ++snap->count >= J->param[JIT_P_hotexit]) {
+    lj_assertJ(J->state == LJ_TRACE_IDLE, "hot side exit while recording");
+    /* J->parent is non-zero for a side trace. */
+    J->state = LJ_TRACE_START;
+    lj_trace_ins(J, pc);
+  }
+}
+
+/* Stitch a new trace to the previous trace. */
+void LJ_FASTCALL lj_trace_stitch(jit_State *J, const BCIns *pc)
+{
+  /* Only start a new trace if not recording or inside __gc call or vmevent. */
+  if (J->state == LJ_TRACE_IDLE &&
+      !(J2G(J)->hookmask & (HOOK_GC|HOOK_VMEVENT))) {
+    J->parent = 0;  /* Have to treat it like a root trace. */
+    /* J->exitno is set to the invoking trace. */
+    J->state = LJ_TRACE_START;
+    lj_trace_ins(J, pc);
+  }
+}
+
+
+/* Tiny struct to pass data to protected call. */
+typedef struct ExitDataCP {
+  jit_State *J;
+  void *exptr;		/* Pointer to exit state. */
+  const BCIns *pc;	/* Restart interpreter at this PC. */
+} ExitDataCP;
+
+/* Need to protect lj_snap_restore because it may throw. */
+static TValue *trace_exit_cp(lua_State *L, lua_CFunction dummy, void *ud)
+{
+  ExitDataCP *exd = (ExitDataCP *)ud;
+  /* Always catch error here and don't call error function. */
+  cframe_errfunc(L->cframe) = 0;
+  cframe_nres(L->cframe) = -2*LUAI_MAXSTACK*(int)sizeof(TValue);
+  exd->pc = lj_snap_restore(exd->J, exd->exptr);
+  UNUSED(dummy);
+  return NULL;
+}
+
+#ifndef LUAJIT_DISABLE_VMEVENT
+/* Push all registers from exit state. */
+static void trace_exit_regs(lua_State *L, ExitState *ex)
+{
+  int32_t i;
+  setintV(L->top++, RID_NUM_GPR);
+  setintV(L->top++, RID_NUM_FPR);
+  for (i = 0; i < RID_NUM_GPR; i++) {
+    if (sizeof(ex->gpr[i]) == sizeof(int32_t))
+      setintV(L->top++, (int32_t)ex->gpr[i]);
+    else
+      setnumV(L->top++, (lua_Number)ex->gpr[i]);
+  }
+#if !LJ_SOFTFP
+  for (i = 0; i < RID_NUM_FPR; i++) {
+    setnumV(L->top, ex->fpr[i]);
+    if (LJ_UNLIKELY(tvisnan(L->top)))
+      setnanV(L->top);
+    L->top++;
+  }
+#endif
+}
+#endif
+
+#if defined(EXITSTATE_PCREG) || (LJ_UNWIND_JIT && !EXITTRACE_VMSTATE)
+/* Determine trace number from pc of exit instruction. */
+static TraceNo trace_exit_find(jit_State *J, MCode *pc)
+{
+  TraceNo traceno;
+  for (traceno = 1; traceno < J->sizetrace; traceno++) {
+    GCtrace *T = traceref(J, traceno);
+    if (T && pc >= T->mcode && pc < (MCode *)((char *)T->mcode + T->szmcode))
+      return traceno;
+  }
+  lj_assertJ(0, "bad exit pc");
+  return 0;
+}
+#endif
+
+/* A trace exited. Restore interpreter state. */
+int LJ_FASTCALL lj_trace_exit(jit_State *J, void *exptr)
+{
+  ERRNO_SAVE
+  lua_State *L = J->L;
+  ExitState *ex = (ExitState *)exptr;
+  ExitDataCP exd;
+  int errcode, exitcode = J->exitcode;
+  TValue exiterr;
+  const BCIns *pc;
+  void *cf;
+  GCtrace *T;
+
+  setnilV(&exiterr);
+  if (exitcode) {  /* Trace unwound with error code. */
+    J->exitcode = 0;
+    copyTV(L, &exiterr, L->top-1);
+  }
+
+#ifdef EXITSTATE_PCREG
+  J->parent = trace_exit_find(J, (MCode *)(intptr_t)ex->gpr[EXITSTATE_PCREG]);
+#endif
+  T = traceref(J, J->parent); UNUSED(T);
+#ifdef EXITSTATE_CHECKEXIT
+  if (J->exitno == T->nsnap) {  /* Treat stack check like a parent exit. */
+    lj_assertJ(T->root != 0, "stack check in root trace");
+    J->exitno = T->ir[REF_BASE].op2;
+    J->parent = T->ir[REF_BASE].op1;
+    T = traceref(J, J->parent);
+  }
+#endif
+  lj_assertJ(T != NULL && J->exitno < T->nsnap, "bad trace or exit number");
+  exd.J = J;
+  exd.exptr = exptr;
+  errcode = lj_vm_cpcall(L, NULL, &exd, trace_exit_cp);
+  if (errcode)
+    return -errcode;  /* Return negated error code. */
+
+  if (exitcode) copyTV(L, L->top++, &exiterr);  /* Anchor the error object. */
+
+  if (!(LJ_HASPROFILE && (G(L)->hookmask & HOOK_PROFILE)))
+    lj_vmevent_send(L, TEXIT,
+      lj_state_checkstack(L, 4+RID_NUM_GPR+RID_NUM_FPR+LUA_MINSTACK);
+      setintV(L->top++, J->parent);
+      setintV(L->top++, J->exitno);
+      trace_exit_regs(L, ex);
+    );
+
+  pc = exd.pc;
+  cf = cframe_raw(L->cframe);
+  setcframe_pc(cf, pc);
+  if (exitcode) {
+    return -exitcode;
+  } else if (LJ_HASPROFILE && (G(L)->hookmask & HOOK_PROFILE)) {
+    /* Just exit to interpreter. */
+  } else if (G(L)->gc.state == GCSatomic || G(L)->gc.state == GCSfinalize) {
+    if (!(G(L)->hookmask & HOOK_GC))
+      lj_gc_step(L);  /* Exited because of GC: drive GC forward. */
+  } else {
+    trace_hotside(J, pc);
+  }
+  if (bc_op(*pc) == BC_JLOOP) {
+    BCIns *retpc = &traceref(J, bc_d(*pc))->startins;
+    int isret = bc_isret(bc_op(*retpc));
+    if (isret || bc_op(*retpc) == BC_ITERN) {
+      if (J->state == LJ_TRACE_RECORD) {
+	J->patchins = *pc;
+	J->patchpc = (BCIns *)pc;
+	*J->patchpc = *retpc;
+	J->bcskip = 1;
+      } else if (isret) {
+	pc = retpc;
+	setcframe_pc(cf, pc);
+      }
+    }
+  }
+  /* Return MULTRES or 0. */
+  ERRNO_RESTORE
+  switch (bc_op(*pc)) {
+  case BC_CALLM: case BC_CALLMT:
+    return (int)((BCReg)(L->top - L->base) - bc_a(*pc) - bc_c(*pc) - LJ_FR2);
+  case BC_RETM:
+    return (int)((BCReg)(L->top - L->base) + 1 - bc_a(*pc) - bc_d(*pc));
+  case BC_TSETM:
+    return (int)((BCReg)(L->top - L->base) + 1 - bc_a(*pc));
+  default:
+    if (bc_op(*pc) >= BC_FUNCF)
+      return (int)((BCReg)(L->top - L->base) + 1);
+    return 0;
+  }
+}
+
+#if LJ_UNWIND_JIT
+/* Given an mcode address determine trace exit address for unwinding. */
+uintptr_t LJ_FASTCALL lj_trace_unwind(jit_State *J, uintptr_t addr, ExitNo *ep)
+{
+#if EXITTRACE_VMSTATE
+  TraceNo traceno = J2G(J)->vmstate;
+#else
+  TraceNo traceno = trace_exit_find(J, (MCode *)addr);
+#endif
+  GCtrace *T = traceref(J, traceno);
+  if (T
+#if EXITTRACE_VMSTATE
+      && addr >= (uintptr_t)T->mcode && addr < (uintptr_t)T->mcode + T->szmcode
+#endif
+     ) {
+    SnapShot *snap = T->snap;
+    SnapNo lo = 0, exitno = T->nsnap;
+    uintptr_t ofs = (uintptr_t)((MCode *)addr - T->mcode);  /* MCode units! */
+    /* Rightmost binary search for mcode offset to determine exit number. */
+    do {
+      SnapNo mid = (lo+exitno) >> 1;
+      if (ofs < snap[mid].mcofs) exitno = mid; else lo = mid + 1;
+    } while (lo < exitno);
+    exitno--;
+    *ep = exitno;
+#ifdef EXITSTUBS_PER_GROUP
+    return (uintptr_t)exitstub_addr(J, exitno);
+#else
+    return (uintptr_t)exitstub_trace_addr(T, exitno);
+#endif
+  }
+  /* Cannot correlate addr with trace/exit. This will be fatal. */
+  lj_assertJ(0, "bad exit pc");
+  return 0;
+}
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_trace.h b/libs/luajit-cmake/luajit/src/lj_trace.h
new file mode 100644
index 0000000..3d7f76f
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_trace.h
@@ -0,0 +1,58 @@
+/*
+** Trace management.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_TRACE_H
+#define _LJ_TRACE_H
+
+#include "lj_obj.h"
+
+#if LJ_HASJIT
+#include "lj_jit.h"
+#include "lj_dispatch.h"
+
+/* Trace errors. */
+typedef enum {
+#define TREDEF(name, msg)	LJ_TRERR_##name,
+#include "lj_traceerr.h"
+  LJ_TRERR__MAX
+} TraceError;
+
+LJ_FUNC_NORET void lj_trace_err(jit_State *J, TraceError e);
+LJ_FUNC_NORET void lj_trace_err_info(jit_State *J, TraceError e);
+
+/* Trace management. */
+LJ_FUNC GCtrace * LJ_FASTCALL lj_trace_alloc(lua_State *L, GCtrace *T);
+LJ_FUNC void LJ_FASTCALL lj_trace_free(global_State *g, GCtrace *T);
+LJ_FUNC void lj_trace_reenableproto(GCproto *pt);
+LJ_FUNC void lj_trace_flushproto(global_State *g, GCproto *pt);
+LJ_FUNC void lj_trace_flush(jit_State *J, TraceNo traceno);
+LJ_FUNC int lj_trace_flushall(lua_State *L);
+LJ_FUNC void lj_trace_initstate(global_State *g);
+LJ_FUNC void lj_trace_freestate(global_State *g);
+
+/* Event handling. */
+LJ_FUNC void lj_trace_ins(jit_State *J, const BCIns *pc);
+LJ_FUNCA void LJ_FASTCALL lj_trace_hot(jit_State *J, const BCIns *pc);
+LJ_FUNCA void LJ_FASTCALL lj_trace_stitch(jit_State *J, const BCIns *pc);
+LJ_FUNCA int LJ_FASTCALL lj_trace_exit(jit_State *J, void *exptr);
+#if LJ_UNWIND_EXT
+LJ_FUNC uintptr_t LJ_FASTCALL lj_trace_unwind(jit_State *J, uintptr_t addr, ExitNo *ep);
+#endif
+
+/* Signal asynchronous abort of trace or end of trace. */
+#define lj_trace_abort(g)	(G2J(g)->state &= ~LJ_TRACE_ACTIVE)
+#define lj_trace_end(J)		(J->state = LJ_TRACE_END)
+
+#else
+
+#define lj_trace_flushall(L)	(UNUSED(L), 0)
+#define lj_trace_initstate(g)	UNUSED(g)
+#define lj_trace_freestate(g)	UNUSED(g)
+#define lj_trace_abort(g)	UNUSED(g)
+#define lj_trace_end(J)		UNUSED(J)
+
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_traceerr.h b/libs/luajit-cmake/luajit/src/lj_traceerr.h
new file mode 100644
index 0000000..8ed8ac8
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_traceerr.h
@@ -0,0 +1,61 @@
+/*
+** Trace compiler error messages.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+/* This file may be included multiple times with different TREDEF macros. */
+
+/* Recording. */
+TREDEF(RECERR,	"error thrown or hook called during recording")
+TREDEF(TRACEUV,	"trace too short")
+TREDEF(TRACEOV,	"trace too long")
+TREDEF(STACKOV,	"trace too deep")
+TREDEF(SNAPOV,	"too many snapshots")
+TREDEF(BLACKL,	"blacklisted")
+TREDEF(RETRY,	"retry recording")
+TREDEF(NYIBC,	"NYI: bytecode %d")
+
+/* Recording loop ops. */
+TREDEF(LLEAVE,	"leaving loop in root trace")
+TREDEF(LINNER,	"inner loop in root trace")
+TREDEF(LUNROLL,	"loop unroll limit reached")
+
+/* Recording calls/returns. */
+TREDEF(BADTYPE,	"bad argument type")
+TREDEF(CJITOFF,	"JIT compilation disabled for function")
+TREDEF(CUNROLL,	"call unroll limit reached")
+TREDEF(DOWNREC,	"down-recursion, restarting")
+TREDEF(NYIFFU,	"NYI: unsupported variant of FastFunc %s")
+TREDEF(NYIRETL,	"NYI: return to lower frame")
+
+/* Recording indexed load/store. */
+TREDEF(STORENN,	"store with nil or NaN key")
+TREDEF(NOMM,	"missing metamethod")
+TREDEF(IDXLOOP,	"looping index lookup")
+TREDEF(NYITMIX,	"NYI: mixed sparse/dense table")
+
+/* Recording C data operations. */
+TREDEF(NOCACHE,	"symbol not in cache")
+TREDEF(NYICONV,	"NYI: unsupported C type conversion")
+TREDEF(NYICALL,	"NYI: unsupported C function type")
+
+/* Optimizations. */
+TREDEF(GFAIL,	"guard would always fail")
+TREDEF(PHIOV,	"too many PHIs")
+TREDEF(TYPEINS,	"persistent type instability")
+
+/* Assembler. */
+TREDEF(MCODEAL,	"failed to allocate mcode memory")
+TREDEF(MCODEOV,	"machine code too long")
+TREDEF(MCODELM,	"hit mcode limit (retrying)")
+TREDEF(SPILLOV,	"too many spill slots")
+TREDEF(BADRA,	"inconsistent register allocation")
+TREDEF(NYIIR,	"NYI: cannot assemble IR instruction %d")
+TREDEF(NYIPHI,	"NYI: PHI shuffling too complex")
+TREDEF(NYICOAL,	"NYI: register coalescing too complex")
+
+#undef TREDEF
+
+/* Detecting unused error messages:
+   awk -F, '/^TREDEF/ { gsub(/TREDEF./, ""); printf "grep -q LJ_TRERR_%s *.[ch] || echo %s\n", $1, $1}' lj_traceerr.h | sh
+*/
diff --git a/libs/luajit-cmake/luajit/src/lj_udata.c b/libs/luajit-cmake/luajit/src/lj_udata.c
new file mode 100644
index 0000000..ee4a145
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_udata.c
@@ -0,0 +1,62 @@
+/*
+** Userdata handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_udata_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_udata.h"
+
+GCudata *lj_udata_new(lua_State *L, MSize sz, GCtab *env)
+{
+  GCudata *ud = lj_mem_newt(L, sizeof(GCudata) + sz, GCudata);
+  global_State *g = G(L);
+  newwhite(g, ud);  /* Not finalized. */
+  ud->gct = ~LJ_TUDATA;
+  ud->udtype = UDTYPE_USERDATA;
+  ud->len = sz;
+  /* NOBARRIER: The GCudata is new (marked white). */
+  setgcrefnull(ud->metatable);
+  setgcref(ud->env, obj2gco(env));
+  /* Chain to userdata list (after main thread). */
+  setgcrefr(ud->nextgc, mainthread(g)->nextgc);
+  setgcref(mainthread(g)->nextgc, obj2gco(ud));
+  return ud;
+}
+
+void LJ_FASTCALL lj_udata_free(global_State *g, GCudata *ud)
+{
+  lj_mem_free(g, ud, sizeudata(ud));
+}
+
+#if LJ_64
+void *lj_lightud_intern(lua_State *L, void *p)
+{
+  global_State *g = G(L);
+  uint64_t u = (uint64_t)p;
+  uint32_t up = lightudup(u);
+  uint32_t *segmap = mref(g->gc.lightudseg, uint32_t);
+  MSize segnum = g->gc.lightudnum;
+  if (segmap) {
+    MSize seg;
+    for (seg = 0; seg <= segnum; seg++)
+      if (segmap[seg] == up)  /* Fast path. */
+	return (void *)(((uint64_t)seg << LJ_LIGHTUD_BITS_LO) | lightudlo(u));
+    segnum++;
+    /* Leave last segment unused to avoid clash with ITERN key. */
+    if (segnum >= (1 << LJ_LIGHTUD_BITS_SEG)-1) lj_err_msg(L, LJ_ERR_BADLU);
+  }
+  if (!((segnum-1) & segnum) && segnum != 1) {
+    lj_mem_reallocvec(L, segmap, segnum, segnum ? 2*segnum : 2u, uint32_t);
+    setmref(g->gc.lightudseg, segmap);
+  }
+  g->gc.lightudnum = segnum;
+  segmap[segnum] = up;
+  return (void *)(((uint64_t)segnum << LJ_LIGHTUD_BITS_LO) | lightudlo(u));
+}
+#endif
+
diff --git a/libs/luajit-cmake/luajit/src/lj_udata.h b/libs/luajit-cmake/luajit/src/lj_udata.h
new file mode 100644
index 0000000..503c9e3
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_udata.h
@@ -0,0 +1,17 @@
+/*
+** Userdata handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_UDATA_H
+#define _LJ_UDATA_H
+
+#include "lj_obj.h"
+
+LJ_FUNC GCudata *lj_udata_new(lua_State *L, MSize sz, GCtab *env);
+LJ_FUNC void LJ_FASTCALL lj_udata_free(global_State *g, GCudata *ud);
+#if LJ_64
+LJ_FUNC void * LJ_FASTCALL lj_lightud_intern(lua_State *L, void *p);
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_vm.h b/libs/luajit-cmake/luajit/src/lj_vm.h
new file mode 100644
index 0000000..c66db00
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_vm.h
@@ -0,0 +1,116 @@
+/*
+** Assembler VM interface definitions.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_VM_H
+#define _LJ_VM_H
+
+#include "lj_obj.h"
+
+/* Entry points for ASM parts of VM. */
+LJ_ASMF void lj_vm_call(lua_State *L, TValue *base, int nres1);
+LJ_ASMF int lj_vm_pcall(lua_State *L, TValue *base, int nres1, ptrdiff_t ef);
+typedef TValue *(*lua_CPFunction)(lua_State *L, lua_CFunction func, void *ud);
+LJ_ASMF int lj_vm_cpcall(lua_State *L, lua_CFunction func, void *ud,
+			 lua_CPFunction cp);
+LJ_ASMF int lj_vm_resume(lua_State *L, TValue *base, int nres1, ptrdiff_t ef);
+LJ_ASMF_NORET void LJ_FASTCALL lj_vm_unwind_c(void *cframe, int errcode);
+LJ_ASMF_NORET void LJ_FASTCALL lj_vm_unwind_ff(void *cframe);
+#if LJ_ABI_WIN && LJ_TARGET_X86
+LJ_ASMF_NORET void LJ_FASTCALL lj_vm_rtlunwind(void *cframe, void *excptrec,
+					       void *unwinder, int errcode);
+#endif
+LJ_ASMF void lj_vm_unwind_c_eh(void);
+LJ_ASMF void lj_vm_unwind_ff_eh(void);
+#if LJ_TARGET_X86ORX64
+LJ_ASMF void lj_vm_unwind_rethrow(void);
+#endif
+#if LJ_TARGET_MIPS
+LJ_ASMF void lj_vm_unwind_stub(void);
+#endif
+
+/* Miscellaneous functions. */
+#if LJ_TARGET_X86ORX64
+LJ_ASMF int lj_vm_cpuid(uint32_t f, uint32_t res[4]);
+#endif
+#if LJ_TARGET_PPC
+void lj_vm_cachesync(void *start, void *end);
+#endif
+LJ_ASMF double lj_vm_foldarith(double x, double y, int op);
+#if LJ_HASJIT
+LJ_ASMF double lj_vm_foldfpm(double x, int op);
+#endif
+#if !LJ_ARCH_HASFPU
+/* Declared in lj_obj.h: LJ_ASMF int32_t lj_vm_tobit(double x); */
+#endif
+
+/* Dispatch targets for recording and hooks. */
+LJ_ASMF void lj_vm_record(void);
+LJ_ASMF void lj_vm_inshook(void);
+LJ_ASMF void lj_vm_rethook(void);
+LJ_ASMF void lj_vm_callhook(void);
+LJ_ASMF void lj_vm_profhook(void);
+LJ_ASMF void lj_vm_IITERN(void);
+
+/* Trace exit handling. */
+LJ_ASMF void lj_vm_exit_handler(void);
+LJ_ASMF void lj_vm_exit_interp(void);
+
+/* Internal math helper functions. */
+#if LJ_TARGET_PPC || LJ_TARGET_ARM64 || (LJ_TARGET_MIPS && LJ_ABI_SOFTFP)
+#define lj_vm_floor	floor
+#define lj_vm_ceil	ceil
+#else
+LJ_ASMF double lj_vm_floor(double);
+LJ_ASMF double lj_vm_ceil(double);
+#if LJ_TARGET_ARM
+LJ_ASMF double lj_vm_floor_sf(double);
+LJ_ASMF double lj_vm_ceil_sf(double);
+#endif
+#endif
+#ifdef LUAJIT_NO_LOG2
+LJ_ASMF double lj_vm_log2(double);
+#else
+#define lj_vm_log2	log2
+#endif
+#if !(defined(_LJ_DISPATCH_H) && LJ_TARGET_MIPS)
+LJ_ASMF int32_t LJ_FASTCALL lj_vm_modi(int32_t, int32_t);
+#endif
+
+#if LJ_HASJIT
+#if LJ_TARGET_X86ORX64
+LJ_ASMF void lj_vm_floor_sse(void);
+LJ_ASMF void lj_vm_ceil_sse(void);
+LJ_ASMF void lj_vm_trunc_sse(void);
+#endif
+#if LJ_TARGET_PPC || LJ_TARGET_ARM64
+#define lj_vm_trunc	trunc
+#else
+LJ_ASMF double lj_vm_trunc(double);
+#if LJ_TARGET_ARM
+LJ_ASMF double lj_vm_trunc_sf(double);
+#endif
+#endif
+#if LJ_HASFFI
+LJ_ASMF int lj_vm_errno(void);
+#endif
+LJ_ASMF TValue *lj_vm_next(GCtab *t, uint32_t idx);
+#endif
+
+/* Continuations for metamethods. */
+LJ_ASMF void lj_cont_cat(void);  /* Continue with concatenation. */
+LJ_ASMF void lj_cont_ra(void);  /* Store result in RA from instruction. */
+LJ_ASMF void lj_cont_nop(void);  /* Do nothing, just continue execution. */
+LJ_ASMF void lj_cont_condt(void);  /* Branch if result is true. */
+LJ_ASMF void lj_cont_condf(void);  /* Branch if result is false. */
+LJ_ASMF void lj_cont_hook(void);  /* Continue from hook yield. */
+LJ_ASMF void lj_cont_stitch(void);  /* Trace stitching. */
+
+/* Start of the ASM code. */
+LJ_ASMF char lj_vm_asm_begin[];
+
+/* Bytecode offsets are relative to lj_vm_asm_begin. */
+#define makeasmfunc(ofs)	((ASMFunction)(lj_vm_asm_begin + (ofs)))
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_vmevent.c b/libs/luajit-cmake/luajit/src/lj_vmevent.c
new file mode 100644
index 0000000..c8491d8
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_vmevent.c
@@ -0,0 +1,58 @@
+/*
+** VM event handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#include <stdio.h>
+
+#define lj_vmevent_c
+#define LUA_CORE
+
+#include "lj_obj.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_state.h"
+#include "lj_dispatch.h"
+#include "lj_vm.h"
+#include "lj_vmevent.h"
+
+ptrdiff_t lj_vmevent_prepare(lua_State *L, VMEvent ev)
+{
+  global_State *g = G(L);
+  GCstr *s = lj_str_newlit(L, LJ_VMEVENTS_REGKEY);
+  cTValue *tv = lj_tab_getstr(tabV(registry(L)), s);
+  if (tvistab(tv)) {
+    int hash = VMEVENT_HASH(ev);
+    tv = lj_tab_getint(tabV(tv), hash);
+    if (tv && tvisfunc(tv)) {
+      lj_state_checkstack(L, LUA_MINSTACK);
+      setfuncV(L, L->top++, funcV(tv));
+      if (LJ_FR2) setnilV(L->top++);
+      return savestack(L, L->top);
+    }
+  }
+  g->vmevmask &= ~VMEVENT_MASK(ev);  /* No handler: cache this fact. */
+  return 0;
+}
+
+void lj_vmevent_call(lua_State *L, ptrdiff_t argbase)
+{
+  global_State *g = G(L);
+  uint8_t oldmask = g->vmevmask;
+  uint8_t oldh = hook_save(g);
+  int status;
+  g->vmevmask = 0;  /* Disable all events. */
+  hook_vmevent(g);
+  status = lj_vm_pcall(L, restorestack(L, argbase), 0+1, 0);
+  if (LJ_UNLIKELY(status)) {
+    /* Really shouldn't use stderr here, but where else to complain? */
+    L->top--;
+    fputs("VM handler failed: ", stderr);
+    fputs(tvisstr(L->top) ? strVdata(L->top) : "?", stderr);
+    fputc('\n', stderr);
+  }
+  hook_restore(g, oldh);
+  if (g->vmevmask != VMEVENT_NOCACHE)
+    g->vmevmask = oldmask;  /* Restore event mask, but not if not modified. */
+}
+
diff --git a/libs/luajit-cmake/luajit/src/lj_vmevent.h b/libs/luajit-cmake/luajit/src/lj_vmevent.h
new file mode 100644
index 0000000..40f9c63
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_vmevent.h
@@ -0,0 +1,59 @@
+/*
+** VM event handling.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LJ_VMEVENT_H
+#define _LJ_VMEVENT_H
+
+#include "lj_obj.h"
+
+/* Registry key for VM event handler table. */
+#define LJ_VMEVENTS_REGKEY	"_VMEVENTS"
+#define LJ_VMEVENTS_HSIZE	4
+
+#define VMEVENT_MASK(ev)	((uint8_t)1 << ((int)(ev) & 7))
+#define VMEVENT_HASH(ev)	((int)(ev) & ~7)
+#define VMEVENT_HASHIDX(h)	((int)(h) << 3)
+#define VMEVENT_NOCACHE		255
+
+#define VMEVENT_DEF(name, hash) \
+  LJ_VMEVENT_##name##_, \
+  LJ_VMEVENT_##name = ((LJ_VMEVENT_##name##_) & 7)|((hash) << 3)
+
+/* VM event IDs. */
+typedef enum {
+  VMEVENT_DEF(BC,	0x00003883),
+  VMEVENT_DEF(TRACE,	0xb2d91467),
+  VMEVENT_DEF(RECORD,	0x9284bf4f),
+  VMEVENT_DEF(TEXIT,	0xb29df2b0),
+  LJ_VMEVENT__MAX
+} VMEvent;
+
+#ifdef LUAJIT_DISABLE_VMEVENT
+#define lj_vmevent_send(L, ev, args)		UNUSED(L)
+#define lj_vmevent_send_(L, ev, args, post)	UNUSED(L)
+#else
+#define lj_vmevent_send(L, ev, args) \
+  if (G(L)->vmevmask & VMEVENT_MASK(LJ_VMEVENT_##ev)) { \
+    ptrdiff_t argbase = lj_vmevent_prepare(L, LJ_VMEVENT_##ev); \
+    if (argbase) { \
+      args \
+      lj_vmevent_call(L, argbase); \
+    } \
+  }
+#define lj_vmevent_send_(L, ev, args, post) \
+  if (G(L)->vmevmask & VMEVENT_MASK(LJ_VMEVENT_##ev)) { \
+    ptrdiff_t argbase = lj_vmevent_prepare(L, LJ_VMEVENT_##ev); \
+    if (argbase) { \
+      args \
+      lj_vmevent_call(L, argbase); \
+      post \
+    } \
+  }
+
+LJ_FUNC ptrdiff_t lj_vmevent_prepare(lua_State *L, VMEvent ev);
+LJ_FUNC void lj_vmevent_call(lua_State *L, ptrdiff_t argbase);
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lj_vmmath.c b/libs/luajit-cmake/luajit/src/lj_vmmath.c
new file mode 100644
index 0000000..b6cc60b
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lj_vmmath.c
@@ -0,0 +1,107 @@
+/*
+** Math helper functions for assembler VM.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lj_vmmath_c
+#define LUA_CORE
+
+#include <errno.h>
+#include <math.h>
+
+#include "lj_obj.h"
+#include "lj_ir.h"
+#include "lj_vm.h"
+
+/* -- Wrapper functions --------------------------------------------------- */
+
+#if LJ_TARGET_X86 && __ELF__ && __PIC__
+/* Wrapper functions to deal with the ELF/x86 PIC disaster. */
+LJ_FUNCA double lj_wrap_log(double x) { return log(x); }
+LJ_FUNCA double lj_wrap_log10(double x) { return log10(x); }
+LJ_FUNCA double lj_wrap_exp(double x) { return exp(x); }
+LJ_FUNCA double lj_wrap_sin(double x) { return sin(x); }
+LJ_FUNCA double lj_wrap_cos(double x) { return cos(x); }
+LJ_FUNCA double lj_wrap_tan(double x) { return tan(x); }
+LJ_FUNCA double lj_wrap_asin(double x) { return asin(x); }
+LJ_FUNCA double lj_wrap_acos(double x) { return acos(x); }
+LJ_FUNCA double lj_wrap_atan(double x) { return atan(x); }
+LJ_FUNCA double lj_wrap_sinh(double x) { return sinh(x); }
+LJ_FUNCA double lj_wrap_cosh(double x) { return cosh(x); }
+LJ_FUNCA double lj_wrap_tanh(double x) { return tanh(x); }
+LJ_FUNCA double lj_wrap_atan2(double x, double y) { return atan2(x, y); }
+LJ_FUNCA double lj_wrap_pow(double x, double y) { return pow(x, y); }
+LJ_FUNCA double lj_wrap_fmod(double x, double y) { return fmod(x, y); }
+#endif
+
+/* -- Helper functions ---------------------------------------------------- */
+
+double lj_vm_foldarith(double x, double y, int op)
+{
+  switch (op) {
+  case IR_ADD - IR_ADD: return x+y; break;
+  case IR_SUB - IR_ADD: return x-y; break;
+  case IR_MUL - IR_ADD: return x*y; break;
+  case IR_DIV - IR_ADD: return x/y; break;
+  case IR_MOD - IR_ADD: return x-lj_vm_floor(x/y)*y; break;
+  case IR_POW - IR_ADD: return pow(x, y); break;
+  case IR_NEG - IR_ADD: return -x; break;
+  case IR_ABS - IR_ADD: return fabs(x); break;
+#if LJ_HASJIT
+  case IR_LDEXP - IR_ADD: return ldexp(x, (int)y); break;
+  case IR_MIN - IR_ADD: return x < y ? x : y; break;
+  case IR_MAX - IR_ADD: return x > y ? x : y; break;
+#endif
+  default: return x;
+  }
+}
+
+/* -- Helper functions for generated machine code ------------------------- */
+
+#if (LJ_HASJIT && !(LJ_TARGET_ARM || LJ_TARGET_ARM64 || LJ_TARGET_PPC)) || LJ_TARGET_MIPS
+int32_t LJ_FASTCALL lj_vm_modi(int32_t a, int32_t b)
+{
+  uint32_t y, ua, ub;
+  /* This must be checked before using this function. */
+  lj_assertX(b != 0, "modulo with zero divisor");
+  ua = a < 0 ? (uint32_t)-a : (uint32_t)a;
+  ub = b < 0 ? (uint32_t)-b : (uint32_t)b;
+  y = ua % ub;
+  if (y != 0 && (a^b) < 0) y = y - ub;
+  if (((int32_t)y^b) < 0) y = (uint32_t)-(int32_t)y;
+  return (int32_t)y;
+}
+#endif
+
+#if LJ_HASJIT
+
+#ifdef LUAJIT_NO_LOG2
+double lj_vm_log2(double a)
+{
+  return log(a) * 1.4426950408889634074;
+}
+#endif
+
+/* Computes fpm(x) for extended math functions. */
+double lj_vm_foldfpm(double x, int fpm)
+{
+  switch (fpm) {
+  case IRFPM_FLOOR: return lj_vm_floor(x);
+  case IRFPM_CEIL: return lj_vm_ceil(x);
+  case IRFPM_TRUNC: return lj_vm_trunc(x);
+  case IRFPM_SQRT: return sqrt(x);
+  case IRFPM_LOG: return log(x);
+  case IRFPM_LOG2: return lj_vm_log2(x);
+  default: lj_assertX(0, "bad fpm %d", fpm);
+  }
+  return 0;
+}
+
+#if LJ_HASFFI
+int lj_vm_errno(void)
+{
+  return errno;
+}
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/ljamalg.c b/libs/luajit-cmake/luajit/src/ljamalg.c
new file mode 100644
index 0000000..cae8356
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/ljamalg.c
@@ -0,0 +1,91 @@
+/*
+** LuaJIT core and libraries amalgamation.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define ljamalg_c
+#define LUA_CORE
+
+/* To get the mremap prototype. Must be defined before any system includes. */
+#if defined(__linux__) && !defined(_GNU_SOURCE)
+#define _GNU_SOURCE
+#endif
+
+#ifndef WINVER
+#define WINVER 0x0501
+#endif
+
+#include "lua.h"
+#include "lauxlib.h"
+
+#include "lj_assert.c"
+#include "lj_gc.c"
+#include "lj_err.c"
+#include "lj_char.c"
+#include "lj_bc.c"
+#include "lj_obj.c"
+#include "lj_buf.c"
+#include "lj_str.c"
+#include "lj_tab.c"
+#include "lj_func.c"
+#include "lj_udata.c"
+#include "lj_meta.c"
+#include "lj_debug.c"
+#include "lj_prng.c"
+#include "lj_state.c"
+#include "lj_dispatch.c"
+#include "lj_vmevent.c"
+#include "lj_vmmath.c"
+#include "lj_strscan.c"
+#include "lj_strfmt.c"
+#include "lj_strfmt_num.c"
+#include "lj_serialize.c"
+#include "lj_api.c"
+#include "lj_profile.c"
+#include "lj_lex.c"
+#include "lj_parse.c"
+#include "lj_bcread.c"
+#include "lj_bcwrite.c"
+#include "lj_load.c"
+#include "lj_ctype.c"
+#include "lj_cdata.c"
+#include "lj_cconv.c"
+#include "lj_ccall.c"
+#include "lj_ccallback.c"
+#include "lj_carith.c"
+#include "lj_clib.c"
+#include "lj_cparse.c"
+#include "lj_lib.c"
+#include "lj_ir.c"
+#include "lj_opt_mem.c"
+#include "lj_opt_fold.c"
+#include "lj_opt_narrow.c"
+#include "lj_opt_dce.c"
+#include "lj_opt_loop.c"
+#include "lj_opt_split.c"
+#include "lj_opt_sink.c"
+#include "lj_mcode.c"
+#include "lj_snap.c"
+#include "lj_record.c"
+#include "lj_crecord.c"
+#include "lj_ffrecord.c"
+#include "lj_asm.c"
+#include "lj_trace.c"
+#include "lj_gdbjit.c"
+#include "lj_alloc.c"
+
+#include "lib_aux.c"
+#include "lib_base.c"
+#include "lib_math.c"
+#include "lib_string.c"
+#include "lib_table.c"
+#include "lib_io.c"
+#include "lib_os.c"
+#include "lib_package.c"
+#include "lib_debug.c"
+#include "lib_bit.c"
+#include "lib_jit.c"
+#include "lib_ffi.c"
+#include "lib_buffer.c"
+#include "lib_init.c"
+
diff --git a/libs/luajit-cmake/luajit/src/lua.h b/libs/luajit-cmake/luajit/src/lua.h
new file mode 100644
index 0000000..6d1634d
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lua.h
@@ -0,0 +1,402 @@
+/*
+** $Id: lua.h,v 1.218.1.5 2008/08/06 13:30:12 roberto Exp $
+** Lua - An Extensible Extension Language
+** Lua.org, PUC-Rio, Brazil (https://www.lua.org)
+** See Copyright Notice at the end of this file
+*/
+
+
+#ifndef lua_h
+#define lua_h
+
+#include <stdarg.h>
+#include <stddef.h>
+
+
+#include "luaconf.h"
+
+
+#define LUA_VERSION	"Lua 5.1"
+#define LUA_RELEASE	"Lua 5.1.4"
+#define LUA_VERSION_NUM	501
+#define LUA_COPYRIGHT	"Copyright (C) 1994-2008 Lua.org, PUC-Rio"
+#define LUA_AUTHORS	"R. Ierusalimschy, L. H. de Figueiredo & W. Celes"
+
+
+/* mark for precompiled code (`<esc>Lua') */
+#define	LUA_SIGNATURE	"\033Lua"
+
+/* option for multiple returns in `lua_pcall' and `lua_call' */
+#define LUA_MULTRET	(-1)
+
+
+/*
+** pseudo-indices
+*/
+#define LUA_REGISTRYINDEX	(-10000)
+#define LUA_ENVIRONINDEX	(-10001)
+#define LUA_GLOBALSINDEX	(-10002)
+#define lua_upvalueindex(i)	(LUA_GLOBALSINDEX-(i))
+
+
+/* thread status */
+#define LUA_OK		0
+#define LUA_YIELD	1
+#define LUA_ERRRUN	2
+#define LUA_ERRSYNTAX	3
+#define LUA_ERRMEM	4
+#define LUA_ERRERR	5
+
+
+typedef struct lua_State lua_State;
+
+typedef int (*lua_CFunction) (lua_State *L);
+
+
+/*
+** functions that read/write blocks when loading/dumping Lua chunks
+*/
+typedef const char * (*lua_Reader) (lua_State *L, void *ud, size_t *sz);
+
+typedef int (*lua_Writer) (lua_State *L, const void* p, size_t sz, void* ud);
+
+
+/*
+** prototype for memory-allocation functions
+*/
+typedef void * (*lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize);
+
+
+/*
+** basic types
+*/
+#define LUA_TNONE		(-1)
+
+#define LUA_TNIL		0
+#define LUA_TBOOLEAN		1
+#define LUA_TLIGHTUSERDATA	2
+#define LUA_TNUMBER		3
+#define LUA_TSTRING		4
+#define LUA_TTABLE		5
+#define LUA_TFUNCTION		6
+#define LUA_TUSERDATA		7
+#define LUA_TTHREAD		8
+
+
+
+/* minimum Lua stack available to a C function */
+#define LUA_MINSTACK	20
+
+
+/*
+** generic extra include file
+*/
+#if defined(LUA_USER_H)
+#include LUA_USER_H
+#endif
+
+
+/* type of numbers in Lua */
+typedef LUA_NUMBER lua_Number;
+
+
+/* type for integer functions */
+typedef LUA_INTEGER lua_Integer;
+
+
+
+/*
+** state manipulation
+*/
+LUA_API lua_State *(lua_newstate) (lua_Alloc f, void *ud);
+LUA_API void       (lua_close) (lua_State *L);
+LUA_API lua_State *(lua_newthread) (lua_State *L);
+
+LUA_API lua_CFunction (lua_atpanic) (lua_State *L, lua_CFunction panicf);
+
+
+/*
+** basic stack manipulation
+*/
+LUA_API int   (lua_gettop) (lua_State *L);
+LUA_API void  (lua_settop) (lua_State *L, int idx);
+LUA_API void  (lua_pushvalue) (lua_State *L, int idx);
+LUA_API void  (lua_remove) (lua_State *L, int idx);
+LUA_API void  (lua_insert) (lua_State *L, int idx);
+LUA_API void  (lua_replace) (lua_State *L, int idx);
+LUA_API int   (lua_checkstack) (lua_State *L, int sz);
+
+LUA_API void  (lua_xmove) (lua_State *from, lua_State *to, int n);
+
+
+/*
+** access functions (stack -> C)
+*/
+
+LUA_API int             (lua_isnumber) (lua_State *L, int idx);
+LUA_API int             (lua_isstring) (lua_State *L, int idx);
+LUA_API int             (lua_iscfunction) (lua_State *L, int idx);
+LUA_API int             (lua_isuserdata) (lua_State *L, int idx);
+LUA_API int             (lua_type) (lua_State *L, int idx);
+LUA_API const char     *(lua_typename) (lua_State *L, int tp);
+
+LUA_API int            (lua_equal) (lua_State *L, int idx1, int idx2);
+LUA_API int            (lua_rawequal) (lua_State *L, int idx1, int idx2);
+LUA_API int            (lua_lessthan) (lua_State *L, int idx1, int idx2);
+
+LUA_API lua_Number      (lua_tonumber) (lua_State *L, int idx);
+LUA_API lua_Integer     (lua_tointeger) (lua_State *L, int idx);
+LUA_API int             (lua_toboolean) (lua_State *L, int idx);
+LUA_API const char     *(lua_tolstring) (lua_State *L, int idx, size_t *len);
+LUA_API size_t          (lua_objlen) (lua_State *L, int idx);
+LUA_API lua_CFunction   (lua_tocfunction) (lua_State *L, int idx);
+LUA_API void	       *(lua_touserdata) (lua_State *L, int idx);
+LUA_API lua_State      *(lua_tothread) (lua_State *L, int idx);
+LUA_API const void     *(lua_topointer) (lua_State *L, int idx);
+
+
+/*
+** push functions (C -> stack)
+*/
+LUA_API void  (lua_pushnil) (lua_State *L);
+LUA_API void  (lua_pushnumber) (lua_State *L, lua_Number n);
+LUA_API void  (lua_pushinteger) (lua_State *L, lua_Integer n);
+LUA_API void  (lua_pushlstring) (lua_State *L, const char *s, size_t l);
+LUA_API void  (lua_pushstring) (lua_State *L, const char *s);
+LUA_API const char *(lua_pushvfstring) (lua_State *L, const char *fmt,
+                                                      va_list argp);
+LUA_API const char *(lua_pushfstring) (lua_State *L, const char *fmt, ...);
+LUA_API void  (lua_pushcclosure) (lua_State *L, lua_CFunction fn, int n);
+LUA_API void  (lua_pushboolean) (lua_State *L, int b);
+LUA_API void  (lua_pushlightuserdata) (lua_State *L, void *p);
+LUA_API int   (lua_pushthread) (lua_State *L);
+
+
+/*
+** get functions (Lua -> stack)
+*/
+LUA_API void  (lua_gettable) (lua_State *L, int idx);
+LUA_API void  (lua_getfield) (lua_State *L, int idx, const char *k);
+LUA_API void  (lua_rawget) (lua_State *L, int idx);
+LUA_API void  (lua_rawgeti) (lua_State *L, int idx, int n);
+LUA_API void  (lua_createtable) (lua_State *L, int narr, int nrec);
+LUA_API void *(lua_newuserdata) (lua_State *L, size_t sz);
+LUA_API int   (lua_getmetatable) (lua_State *L, int objindex);
+LUA_API void  (lua_getfenv) (lua_State *L, int idx);
+
+
+/*
+** set functions (stack -> Lua)
+*/
+LUA_API void  (lua_settable) (lua_State *L, int idx);
+LUA_API void  (lua_setfield) (lua_State *L, int idx, const char *k);
+LUA_API void  (lua_rawset) (lua_State *L, int idx);
+LUA_API void  (lua_rawseti) (lua_State *L, int idx, int n);
+LUA_API int   (lua_setmetatable) (lua_State *L, int objindex);
+LUA_API int   (lua_setfenv) (lua_State *L, int idx);
+
+
+/*
+** `load' and `call' functions (load and run Lua code)
+*/
+LUA_API void  (lua_call) (lua_State *L, int nargs, int nresults);
+LUA_API int   (lua_pcall) (lua_State *L, int nargs, int nresults, int errfunc);
+LUA_API int   (lua_cpcall) (lua_State *L, lua_CFunction func, void *ud);
+LUA_API int   (lua_load) (lua_State *L, lua_Reader reader, void *dt,
+                                        const char *chunkname);
+
+LUA_API int (lua_dump) (lua_State *L, lua_Writer writer, void *data);
+
+
+/*
+** coroutine functions
+*/
+LUA_API int  (lua_yield) (lua_State *L, int nresults);
+LUA_API int  (lua_resume) (lua_State *L, int narg);
+LUA_API int  (lua_status) (lua_State *L);
+
+/*
+** garbage-collection function and options
+*/
+
+#define LUA_GCSTOP		0
+#define LUA_GCRESTART		1
+#define LUA_GCCOLLECT		2
+#define LUA_GCCOUNT		3
+#define LUA_GCCOUNTB		4
+#define LUA_GCSTEP		5
+#define LUA_GCSETPAUSE		6
+#define LUA_GCSETSTEPMUL	7
+#define LUA_GCISRUNNING		9
+
+LUA_API int (lua_gc) (lua_State *L, int what, int data);
+
+
+/*
+** miscellaneous functions
+*/
+
+LUA_API int   (lua_error) (lua_State *L);
+
+LUA_API int   (lua_next) (lua_State *L, int idx);
+
+LUA_API void  (lua_concat) (lua_State *L, int n);
+
+LUA_API lua_Alloc (lua_getallocf) (lua_State *L, void **ud);
+LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);
+
+
+
+/*
+** ===============================================================
+** some useful macros
+** ===============================================================
+*/
+
+#define lua_pop(L,n)		lua_settop(L, -(n)-1)
+
+#define lua_newtable(L)		lua_createtable(L, 0, 0)
+
+#define lua_register(L,n,f) (lua_pushcfunction(L, (f)), lua_setglobal(L, (n)))
+
+#define lua_pushcfunction(L,f)	lua_pushcclosure(L, (f), 0)
+
+#define lua_strlen(L,i)		lua_objlen(L, (i))
+
+#define lua_isfunction(L,n)	(lua_type(L, (n)) == LUA_TFUNCTION)
+#define lua_istable(L,n)	(lua_type(L, (n)) == LUA_TTABLE)
+#define lua_islightuserdata(L,n)	(lua_type(L, (n)) == LUA_TLIGHTUSERDATA)
+#define lua_isnil(L,n)		(lua_type(L, (n)) == LUA_TNIL)
+#define lua_isboolean(L,n)	(lua_type(L, (n)) == LUA_TBOOLEAN)
+#define lua_isthread(L,n)	(lua_type(L, (n)) == LUA_TTHREAD)
+#define lua_isnone(L,n)		(lua_type(L, (n)) == LUA_TNONE)
+#define lua_isnoneornil(L, n)	(lua_type(L, (n)) <= 0)
+
+#define lua_pushliteral(L, s)	\
+	lua_pushlstring(L, "" s, (sizeof(s)/sizeof(char))-1)
+
+#define lua_setglobal(L,s)	lua_setfield(L, LUA_GLOBALSINDEX, (s))
+#define lua_getglobal(L,s)	lua_getfield(L, LUA_GLOBALSINDEX, (s))
+
+#define lua_tostring(L,i)	lua_tolstring(L, (i), NULL)
+
+
+
+/*
+** compatibility macros and functions
+*/
+
+#define lua_open()	luaL_newstate()
+
+#define lua_getregistry(L)	lua_pushvalue(L, LUA_REGISTRYINDEX)
+
+#define lua_getgccount(L)	lua_gc(L, LUA_GCCOUNT, 0)
+
+#define lua_Chunkreader		lua_Reader
+#define lua_Chunkwriter		lua_Writer
+
+
+/* hack */
+LUA_API void lua_setlevel	(lua_State *from, lua_State *to);
+
+
+/*
+** {======================================================================
+** Debug API
+** =======================================================================
+*/
+
+
+/*
+** Event codes
+*/
+#define LUA_HOOKCALL	0
+#define LUA_HOOKRET	1
+#define LUA_HOOKLINE	2
+#define LUA_HOOKCOUNT	3
+#define LUA_HOOKTAILRET 4
+
+
+/*
+** Event masks
+*/
+#define LUA_MASKCALL	(1 << LUA_HOOKCALL)
+#define LUA_MASKRET	(1 << LUA_HOOKRET)
+#define LUA_MASKLINE	(1 << LUA_HOOKLINE)
+#define LUA_MASKCOUNT	(1 << LUA_HOOKCOUNT)
+
+typedef struct lua_Debug lua_Debug;  /* activation record */
+
+
+/* Functions to be called by the debuger in specific events */
+typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);
+
+
+LUA_API int lua_getstack (lua_State *L, int level, lua_Debug *ar);
+LUA_API int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar);
+LUA_API const char *lua_getlocal (lua_State *L, const lua_Debug *ar, int n);
+LUA_API const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n);
+LUA_API const char *lua_getupvalue (lua_State *L, int funcindex, int n);
+LUA_API const char *lua_setupvalue (lua_State *L, int funcindex, int n);
+LUA_API int lua_sethook (lua_State *L, lua_Hook func, int mask, int count);
+LUA_API lua_Hook lua_gethook (lua_State *L);
+LUA_API int lua_gethookmask (lua_State *L);
+LUA_API int lua_gethookcount (lua_State *L);
+
+/* From Lua 5.2. */
+LUA_API void *lua_upvalueid (lua_State *L, int idx, int n);
+LUA_API void lua_upvaluejoin (lua_State *L, int idx1, int n1, int idx2, int n2);
+LUA_API int lua_loadx (lua_State *L, lua_Reader reader, void *dt,
+		       const char *chunkname, const char *mode);
+LUA_API const lua_Number *lua_version (lua_State *L);
+LUA_API void lua_copy (lua_State *L, int fromidx, int toidx);
+LUA_API lua_Number lua_tonumberx (lua_State *L, int idx, int *isnum);
+LUA_API lua_Integer lua_tointegerx (lua_State *L, int idx, int *isnum);
+
+/* From Lua 5.3. */
+LUA_API int lua_isyieldable (lua_State *L);
+
+
+struct lua_Debug {
+  int event;
+  const char *name;	/* (n) */
+  const char *namewhat;	/* (n) `global', `local', `field', `method' */
+  const char *what;	/* (S) `Lua', `C', `main', `tail' */
+  const char *source;	/* (S) */
+  int currentline;	/* (l) */
+  int nups;		/* (u) number of upvalues */
+  int linedefined;	/* (S) */
+  int lastlinedefined;	/* (S) */
+  char short_src[LUA_IDSIZE]; /* (S) */
+  /* private part */
+  int i_ci;  /* active function */
+};
+
+/* }====================================================================== */
+
+
+/******************************************************************************
+* Copyright (C) 1994-2008 Lua.org, PUC-Rio.  All rights reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining
+* a copy of this software and associated documentation files (the
+* "Software"), to deal in the Software without restriction, including
+* without limitation the rights to use, copy, modify, merge, publish,
+* distribute, sublicense, and/or sell copies of the Software, and to
+* permit persons to whom the Software is furnished to do so, subject to
+* the following conditions:
+*
+* The above copyright notice and this permission notice shall be
+* included in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+******************************************************************************/
+
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lua.hpp b/libs/luajit-cmake/luajit/src/lua.hpp
new file mode 100644
index 0000000..07e9002
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lua.hpp
@@ -0,0 +1,9 @@
+// C++ wrapper for LuaJIT header files.
+
+extern "C" {
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+#include "luajit.h"
+}
+
diff --git a/libs/luajit-cmake/luajit/src/luaconf.h b/libs/luajit-cmake/luajit/src/luaconf.h
new file mode 100644
index 0000000..e8790c1
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/luaconf.h
@@ -0,0 +1,152 @@
+/*
+** Configuration header.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef luaconf_h
+#define luaconf_h
+
+#ifndef WINVER
+#define WINVER 0x0501
+#endif
+#include <limits.h>
+#include <stddef.h>
+
+/* Default path for loading Lua and C modules with require(). */
+#if defined(_WIN32)
+/*
+** In Windows, any exclamation mark ('!') in the path is replaced by the
+** path of the directory of the executable file of the current process.
+*/
+#define LUA_LDIR	"!\\lua\\"
+#define LUA_CDIR	"!\\"
+#define LUA_PATH_DEFAULT \
+  ".\\?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;"
+#define LUA_CPATH_DEFAULT \
+  ".\\?.dll;" LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll"
+#else
+/*
+** Note to distribution maintainers: do NOT patch the following lines!
+** Please read ../doc/install.html#distro and pass PREFIX=/usr instead.
+*/
+#ifndef LUA_MULTILIB
+#define LUA_MULTILIB	"lib"
+#endif
+#ifndef LUA_LMULTILIB
+#define LUA_LMULTILIB	"lib"
+#endif
+#define LUA_LROOT	"/usr/local"
+#define LUA_LUADIR	"/lua/5.1/"
+#define LUA_LJDIR	"/luajit-2.1.0-beta3/"
+
+#ifdef LUA_ROOT
+#define LUA_JROOT	LUA_ROOT
+#define LUA_RLDIR	LUA_ROOT "/share" LUA_LUADIR
+#define LUA_RCDIR	LUA_ROOT "/" LUA_MULTILIB LUA_LUADIR
+#define LUA_RLPATH	";" LUA_RLDIR "?.lua;" LUA_RLDIR "?/init.lua"
+#define LUA_RCPATH	";" LUA_RCDIR "?.so"
+#else
+#define LUA_JROOT	LUA_LROOT
+#define LUA_RLPATH
+#define LUA_RCPATH
+#endif
+
+#define LUA_JPATH	";" LUA_JROOT "/share" LUA_LJDIR "?.lua"
+#define LUA_LLDIR	LUA_LROOT "/share" LUA_LUADIR
+#define LUA_LCDIR	LUA_LROOT "/" LUA_LMULTILIB LUA_LUADIR
+#define LUA_LLPATH	";" LUA_LLDIR "?.lua;" LUA_LLDIR "?/init.lua"
+#define LUA_LCPATH1	";" LUA_LCDIR "?.so"
+#define LUA_LCPATH2	";" LUA_LCDIR "loadall.so"
+
+#define LUA_PATH_DEFAULT	"./?.lua" LUA_JPATH LUA_LLPATH LUA_RLPATH
+#define LUA_CPATH_DEFAULT	"./?.so" LUA_LCPATH1 LUA_RCPATH LUA_LCPATH2
+#endif
+
+/* Environment variable names for path overrides and initialization code. */
+#define LUA_PATH	"LUA_PATH"
+#define LUA_CPATH	"LUA_CPATH"
+#define LUA_INIT	"LUA_INIT"
+
+/* Special file system characters. */
+#if defined(_WIN32)
+#define LUA_DIRSEP	"\\"
+#else
+#define LUA_DIRSEP	"/"
+#endif
+#define LUA_PATHSEP	";"
+#define LUA_PATH_MARK	"?"
+#define LUA_EXECDIR	"!"
+#define LUA_IGMARK	"-"
+#define LUA_PATH_CONFIG \
+  LUA_DIRSEP "\n" LUA_PATHSEP "\n" LUA_PATH_MARK "\n" \
+  LUA_EXECDIR "\n" LUA_IGMARK "\n"
+
+/* Quoting in error messages. */
+#define LUA_QL(x)	"'" x "'"
+#define LUA_QS		LUA_QL("%s")
+
+/* Various tunables. */
+#define LUAI_MAXSTACK	65500	/* Max. # of stack slots for a thread (<64K). */
+#define LUAI_MAXCSTACK	8000	/* Max. # of stack slots for a C func (<10K). */
+#define LUAI_GCPAUSE	200	/* Pause GC until memory is at 200%. */
+#define LUAI_GCMUL	200	/* Run GC at 200% of allocation speed. */
+#define LUA_MAXCAPTURES	32	/* Max. pattern captures. */
+
+/* Configuration for the frontend (the luajit executable). */
+#if defined(luajit_c)
+#define LUA_PROGNAME	"luajit"  /* Fallback frontend name. */
+#define LUA_PROMPT	"> "	/* Interactive prompt. */
+#define LUA_PROMPT2	">> "	/* Continuation prompt. */
+#define LUA_MAXINPUT	512	/* Max. input line length. */
+#endif
+
+/* Note: changing the following defines breaks the Lua 5.1 ABI. */
+#define LUA_INTEGER	ptrdiff_t
+#define LUA_IDSIZE	60	/* Size of lua_Debug.short_src. */
+/*
+** Size of lauxlib and io.* on-stack buffers. Weird workaround to avoid using
+** unreasonable amounts of stack space, but still retain ABI compatibility.
+** Blame Lua for depending on BUFSIZ in the ABI, blame **** for wrecking it.
+*/
+#define LUAL_BUFFERSIZE	(BUFSIZ > 16384 ? 8192 : BUFSIZ)
+
+/* The following defines are here only for compatibility with luaconf.h
+** from the standard Lua distribution. They must not be changed for LuaJIT.
+*/
+#define LUA_NUMBER_DOUBLE
+#define LUA_NUMBER		double
+#define LUAI_UACNUMBER		double
+#define LUA_NUMBER_SCAN		"%lf"
+#define LUA_NUMBER_FMT		"%.14g"
+#define lua_number2str(s, n)	sprintf((s), LUA_NUMBER_FMT, (n))
+#define LUAI_MAXNUMBER2STR	32
+#define LUA_INTFRMLEN		"l"
+#define LUA_INTFRM_T		long
+
+/* Linkage of public API functions. */
+#if defined(LUA_BUILD_AS_DLL)
+#if defined(LUA_CORE) || defined(LUA_LIB)
+#define LUA_API		__declspec(dllexport)
+#else
+#define LUA_API		__declspec(dllimport)
+#endif
+#else
+#define LUA_API		extern
+#endif
+
+#define LUALIB_API	LUA_API
+
+/* Compatibility support for assertions. */
+#if defined(LUA_USE_ASSERT) || defined(LUA_USE_APICHECK)
+#include <assert.h>
+#endif
+#ifdef LUA_USE_ASSERT
+#define lua_assert(x)		assert(x)
+#endif
+#ifdef LUA_USE_APICHECK
+#define luai_apicheck(L, o)	{ (void)L; assert(o); }
+#else
+#define luai_apicheck(L, o)	{ (void)L; }
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/luajit.c b/libs/luajit-cmake/luajit/src/luajit.c
new file mode 100644
index 0000000..6dd6402
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/luajit.c
@@ -0,0 +1,586 @@
+/*
+** LuaJIT frontend. Runs commands, scripts, read-eval-print (REPL) etc.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define luajit_c
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+#include "luajit.h"
+
+#include "lj_arch.h"
+
+#if LJ_TARGET_POSIX
+#include <unistd.h>
+#define lua_stdin_is_tty()	isatty(0)
+#elif LJ_TARGET_WINDOWS
+#include <io.h>
+#ifdef __BORLANDC__
+#define lua_stdin_is_tty()	isatty(_fileno(stdin))
+#else
+#define lua_stdin_is_tty()	_isatty(_fileno(stdin))
+#endif
+#else
+#define lua_stdin_is_tty()	1
+#endif
+
+#if !LJ_TARGET_CONSOLE
+#include <signal.h>
+#endif
+
+static lua_State *globalL = NULL;
+static const char *progname = LUA_PROGNAME;
+static char *empty_argv[2] = { NULL, NULL };
+
+#if !LJ_TARGET_CONSOLE
+static void lstop(lua_State *L, lua_Debug *ar)
+{
+  (void)ar;  /* unused arg. */
+  lua_sethook(L, NULL, 0, 0);
+  /* Avoid luaL_error -- a C hook doesn't add an extra frame. */
+  luaL_where(L, 0);
+  lua_pushfstring(L, "%sinterrupted!", lua_tostring(L, -1));
+  lua_error(L);
+}
+
+static void laction(int i)
+{
+  signal(i, SIG_DFL); /* if another SIGINT happens before lstop,
+			 terminate process (default action) */
+  lua_sethook(globalL, lstop, LUA_MASKCALL | LUA_MASKRET | LUA_MASKCOUNT, 1);
+}
+#endif
+
+static void print_usage(void)
+{
+  fputs("usage: ", stderr);
+  fputs(progname, stderr);
+  fputs(" [options]... [script [args]...].\n"
+  "Available options are:\n"
+  "  -e chunk  Execute string " LUA_QL("chunk") ".\n"
+  "  -l name   Require library " LUA_QL("name") ".\n"
+  "  -b ...    Save or list bytecode.\n"
+  "  -j cmd    Perform LuaJIT control command.\n"
+  "  -O[opt]   Control LuaJIT optimizations.\n"
+  "  -i        Enter interactive mode after executing " LUA_QL("script") ".\n"
+  "  -v        Show version information.\n"
+  "  -E        Ignore environment variables.\n"
+  "  --        Stop handling options.\n"
+  "  -         Execute stdin and stop handling options.\n", stderr);
+  fflush(stderr);
+}
+
+static void l_message(const char *msg)
+{
+  if (progname) { fputs(progname, stderr); fputc(':', stderr); fputc(' ', stderr); }
+  fputs(msg, stderr); fputc('\n', stderr);
+  fflush(stderr);
+}
+
+static int report(lua_State *L, int status)
+{
+  if (status && !lua_isnil(L, -1)) {
+    const char *msg = lua_tostring(L, -1);
+    if (msg == NULL) msg = "(error object is not a string)";
+    l_message(msg);
+    lua_pop(L, 1);
+  }
+  return status;
+}
+
+static int traceback(lua_State *L)
+{
+  if (!lua_isstring(L, 1)) { /* Non-string error object? Try metamethod. */
+    if (lua_isnoneornil(L, 1) ||
+	!luaL_callmeta(L, 1, "__tostring") ||
+	!lua_isstring(L, -1))
+      return 1;  /* Return non-string error object. */
+    lua_remove(L, 1);  /* Replace object by result of __tostring metamethod. */
+  }
+  luaL_traceback(L, L, lua_tostring(L, 1), 1);
+  return 1;
+}
+
+static int docall(lua_State *L, int narg, int clear)
+{
+  int status;
+  int base = lua_gettop(L) - narg;  /* function index */
+  lua_pushcfunction(L, traceback);  /* push traceback function */
+  lua_insert(L, base);  /* put it under chunk and args */
+#if !LJ_TARGET_CONSOLE
+  signal(SIGINT, laction);
+#endif
+  status = lua_pcall(L, narg, (clear ? 0 : LUA_MULTRET), base);
+#if !LJ_TARGET_CONSOLE
+  signal(SIGINT, SIG_DFL);
+#endif
+  lua_remove(L, base);  /* remove traceback function */
+  /* force a complete garbage collection in case of errors */
+  if (status != LUA_OK) lua_gc(L, LUA_GCCOLLECT, 0);
+  return status;
+}
+
+static void print_version(void)
+{
+  fputs(LUAJIT_VERSION " -- " LUAJIT_COPYRIGHT ". " LUAJIT_URL "\n", stdout);
+}
+
+static void print_jit_status(lua_State *L)
+{
+  int n;
+  const char *s;
+  lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
+  lua_getfield(L, -1, "jit");  /* Get jit.* module table. */
+  lua_remove(L, -2);
+  lua_getfield(L, -1, "status");
+  lua_remove(L, -2);
+  n = lua_gettop(L);
+  lua_call(L, 0, LUA_MULTRET);
+  fputs(lua_toboolean(L, n) ? "JIT: ON" : "JIT: OFF", stdout);
+  for (n++; (s = lua_tostring(L, n)); n++) {
+    putc(' ', stdout);
+    fputs(s, stdout);
+  }
+  putc('\n', stdout);
+  lua_settop(L, 0);  /* clear stack */
+}
+
+static void createargtable(lua_State *L, char **argv, int argc, int argf)
+{
+  int i;
+  lua_createtable(L, argc - argf, argf);
+  for (i = 0; i < argc; i++) {
+    lua_pushstring(L, argv[i]);
+    lua_rawseti(L, -2, i - argf);
+  }
+  lua_setglobal(L, "arg");
+}
+
+static int dofile(lua_State *L, const char *name)
+{
+  int status = luaL_loadfile(L, name) || docall(L, 0, 1);
+  return report(L, status);
+}
+
+static int dostring(lua_State *L, const char *s, const char *name)
+{
+  int status = luaL_loadbuffer(L, s, strlen(s), name) || docall(L, 0, 1);
+  return report(L, status);
+}
+
+static int dolibrary(lua_State *L, const char *name)
+{
+  lua_getglobal(L, "require");
+  lua_pushstring(L, name);
+  return report(L, docall(L, 1, 1));
+}
+
+static void write_prompt(lua_State *L, int firstline)
+{
+  const char *p;
+  lua_getfield(L, LUA_GLOBALSINDEX, firstline ? "_PROMPT" : "_PROMPT2");
+  p = lua_tostring(L, -1);
+  if (p == NULL) p = firstline ? LUA_PROMPT : LUA_PROMPT2;
+  fputs(p, stdout);
+  fflush(stdout);
+  lua_pop(L, 1);  /* remove global */
+}
+
+static int incomplete(lua_State *L, int status)
+{
+  if (status == LUA_ERRSYNTAX) {
+    size_t lmsg;
+    const char *msg = lua_tolstring(L, -1, &lmsg);
+    const char *tp = msg + lmsg - (sizeof(LUA_QL("<eof>")) - 1);
+    if (strstr(msg, LUA_QL("<eof>")) == tp) {
+      lua_pop(L, 1);
+      return 1;
+    }
+  }
+  return 0;  /* else... */
+}
+
+static int pushline(lua_State *L, int firstline)
+{
+  char buf[LUA_MAXINPUT];
+  write_prompt(L, firstline);
+  if (fgets(buf, LUA_MAXINPUT, stdin)) {
+    size_t len = strlen(buf);
+    if (len > 0 && buf[len-1] == '\n')
+      buf[len-1] = '\0';
+    if (firstline && buf[0] == '=')
+      lua_pushfstring(L, "return %s", buf+1);
+    else
+      lua_pushstring(L, buf);
+    return 1;
+  }
+  return 0;
+}
+
+static int loadline(lua_State *L)
+{
+  int status;
+  lua_settop(L, 0);
+  if (!pushline(L, 1))
+    return -1;  /* no input */
+  for (;;) {  /* repeat until gets a complete line */
+    status = luaL_loadbuffer(L, lua_tostring(L, 1), lua_strlen(L, 1), "=stdin");
+    if (!incomplete(L, status)) break;  /* cannot try to add lines? */
+    if (!pushline(L, 0))  /* no more input? */
+      return -1;
+    lua_pushliteral(L, "\n");  /* add a new line... */
+    lua_insert(L, -2);  /* ...between the two lines */
+    lua_concat(L, 3);  /* join them */
+  }
+  lua_remove(L, 1);  /* remove line */
+  return status;
+}
+
+static void dotty(lua_State *L)
+{
+  int status;
+  const char *oldprogname = progname;
+  progname = NULL;
+  while ((status = loadline(L)) != -1) {
+    if (status == LUA_OK) status = docall(L, 0, 0);
+    report(L, status);
+    if (status == LUA_OK && lua_gettop(L) > 0) {  /* any result to print? */
+      lua_getglobal(L, "print");
+      lua_insert(L, 1);
+      if (lua_pcall(L, lua_gettop(L)-1, 0, 0) != 0)
+	l_message(lua_pushfstring(L, "error calling " LUA_QL("print") " (%s)",
+				  lua_tostring(L, -1)));
+    }
+  }
+  lua_settop(L, 0);  /* clear stack */
+  fputs("\n", stdout);
+  fflush(stdout);
+  progname = oldprogname;
+}
+
+static int handle_script(lua_State *L, char **argx)
+{
+  int status;
+  const char *fname = argx[0];
+  if (strcmp(fname, "-") == 0 && strcmp(argx[-1], "--") != 0)
+    fname = NULL;  /* stdin */
+  status = luaL_loadfile(L, fname);
+  if (status == LUA_OK) {
+    /* Fetch args from arg table. LUA_INIT or -e might have changed them. */
+    int narg = 0;
+    lua_getglobal(L, "arg");
+    if (lua_istable(L, -1)) {
+      do {
+	narg++;
+	lua_rawgeti(L, -narg, narg);
+      } while (!lua_isnil(L, -1));
+      lua_pop(L, 1);
+      lua_remove(L, -narg);
+      narg--;
+    } else {
+      lua_pop(L, 1);
+    }
+    status = docall(L, narg, 0);
+  }
+  return report(L, status);
+}
+
+/* Load add-on module. */
+static int loadjitmodule(lua_State *L)
+{
+  lua_getglobal(L, "require");
+  lua_pushliteral(L, "jit.");
+  lua_pushvalue(L, -3);
+  lua_concat(L, 2);
+  if (lua_pcall(L, 1, 1, 0)) {
+    const char *msg = lua_tostring(L, -1);
+    if (msg && !strncmp(msg, "module ", 7))
+      goto nomodule;
+    return report(L, 1);
+  }
+  lua_getfield(L, -1, "start");
+  if (lua_isnil(L, -1)) {
+  nomodule:
+    l_message("unknown luaJIT command or jit.* modules not installed");
+    return 1;
+  }
+  lua_remove(L, -2);  /* Drop module table. */
+  return 0;
+}
+
+/* Run command with options. */
+static int runcmdopt(lua_State *L, const char *opt)
+{
+  int narg = 0;
+  if (opt && *opt) {
+    for (;;) {  /* Split arguments. */
+      const char *p = strchr(opt, ',');
+      narg++;
+      if (!p) break;
+      if (p == opt)
+	lua_pushnil(L);
+      else
+	lua_pushlstring(L, opt, (size_t)(p - opt));
+      opt = p + 1;
+    }
+    if (*opt)
+      lua_pushstring(L, opt);
+    else
+      lua_pushnil(L);
+  }
+  return report(L, lua_pcall(L, narg, 0, 0));
+}
+
+/* JIT engine control command: try jit library first or load add-on module. */
+static int dojitcmd(lua_State *L, const char *cmd)
+{
+  const char *opt = strchr(cmd, '=');
+  lua_pushlstring(L, cmd, opt ? (size_t)(opt - cmd) : strlen(cmd));
+  lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
+  lua_getfield(L, -1, "jit");  /* Get jit.* module table. */
+  lua_remove(L, -2);
+  lua_pushvalue(L, -2);
+  lua_gettable(L, -2);  /* Lookup library function. */
+  if (!lua_isfunction(L, -1)) {
+    lua_pop(L, 2);  /* Drop non-function and jit.* table, keep module name. */
+    if (loadjitmodule(L))
+      return 1;
+  } else {
+    lua_remove(L, -2);  /* Drop jit.* table. */
+  }
+  lua_remove(L, -2);  /* Drop module name. */
+  return runcmdopt(L, opt ? opt+1 : opt);
+}
+
+/* Optimization flags. */
+static int dojitopt(lua_State *L, const char *opt)
+{
+  lua_getfield(L, LUA_REGISTRYINDEX, "_LOADED");
+  lua_getfield(L, -1, "jit.opt");  /* Get jit.opt.* module table. */
+  lua_remove(L, -2);
+  lua_getfield(L, -1, "start");
+  lua_remove(L, -2);
+  return runcmdopt(L, opt);
+}
+
+/* Save or list bytecode. */
+static int dobytecode(lua_State *L, char **argv)
+{
+  int narg = 0;
+  lua_pushliteral(L, "bcsave");
+  if (loadjitmodule(L))
+    return 1;
+  if (argv[0][2]) {
+    narg++;
+    argv[0][1] = '-';
+    lua_pushstring(L, argv[0]+1);
+  }
+  for (argv++; *argv != NULL; narg++, argv++)
+    lua_pushstring(L, *argv);
+  report(L, lua_pcall(L, narg, 0, 0));
+  return -1;
+}
+
+/* check that argument has no extra characters at the end */
+#define notail(x)	{if ((x)[2] != '\0') return -1;}
+
+#define FLAGS_INTERACTIVE	1
+#define FLAGS_VERSION		2
+#define FLAGS_EXEC		4
+#define FLAGS_OPTION		8
+#define FLAGS_NOENV		16
+
+static int collectargs(char **argv, int *flags)
+{
+  int i;
+  for (i = 1; argv[i] != NULL; i++) {
+    if (argv[i][0] != '-')  /* Not an option? */
+      return i;
+    switch (argv[i][1]) {  /* Check option. */
+    case '-':
+      notail(argv[i]);
+      return i+1;
+    case '\0':
+      return i;
+    case 'i':
+      notail(argv[i]);
+      *flags |= FLAGS_INTERACTIVE;
+      /* fallthrough */
+    case 'v':
+      notail(argv[i]);
+      *flags |= FLAGS_VERSION;
+      break;
+    case 'e':
+      *flags |= FLAGS_EXEC;
+      /* fallthrough */
+    case 'j':  /* LuaJIT extension */
+    case 'l':
+      *flags |= FLAGS_OPTION;
+      if (argv[i][2] == '\0') {
+	i++;
+	if (argv[i] == NULL) return -1;
+      }
+      break;
+    case 'O': break;  /* LuaJIT extension */
+    case 'b':  /* LuaJIT extension */
+      if (*flags) return -1;
+      *flags |= FLAGS_EXEC;
+      return i+1;
+    case 'E':
+      *flags |= FLAGS_NOENV;
+      break;
+    default: return -1;  /* invalid option */
+    }
+  }
+  return i;
+}
+
+static int runargs(lua_State *L, char **argv, int argn)
+{
+  int i;
+  for (i = 1; i < argn; i++) {
+    if (argv[i] == NULL) continue;
+    lua_assert(argv[i][0] == '-');
+    switch (argv[i][1]) {
+    case 'e': {
+      const char *chunk = argv[i] + 2;
+      if (*chunk == '\0') chunk = argv[++i];
+      lua_assert(chunk != NULL);
+      if (dostring(L, chunk, "=(command line)") != 0)
+	return 1;
+      break;
+      }
+    case 'l': {
+      const char *filename = argv[i] + 2;
+      if (*filename == '\0') filename = argv[++i];
+      lua_assert(filename != NULL);
+      if (dolibrary(L, filename))
+	return 1;
+      break;
+      }
+    case 'j': {  /* LuaJIT extension. */
+      const char *cmd = argv[i] + 2;
+      if (*cmd == '\0') cmd = argv[++i];
+      lua_assert(cmd != NULL);
+      if (dojitcmd(L, cmd))
+	return 1;
+      break;
+      }
+    case 'O':  /* LuaJIT extension. */
+      if (dojitopt(L, argv[i] + 2))
+	return 1;
+      break;
+    case 'b':  /* LuaJIT extension. */
+      return dobytecode(L, argv+i);
+    default: break;
+    }
+  }
+  return LUA_OK;
+}
+
+static int handle_luainit(lua_State *L)
+{
+#if LJ_TARGET_CONSOLE
+  const char *init = NULL;
+#else
+  const char *init = getenv(LUA_INIT);
+#endif
+  if (init == NULL)
+    return LUA_OK;
+  else if (init[0] == '@')
+    return dofile(L, init+1);
+  else
+    return dostring(L, init, "=" LUA_INIT);
+}
+
+static struct Smain {
+  char **argv;
+  int argc;
+  int status;
+} smain;
+
+static int pmain(lua_State *L)
+{
+  struct Smain *s = &smain;
+  char **argv = s->argv;
+  int argn;
+  int flags = 0;
+  globalL = L;
+  LUAJIT_VERSION_SYM();  /* Linker-enforced version check. */
+
+  argn = collectargs(argv, &flags);
+  if (argn < 0) {  /* Invalid args? */
+    print_usage();
+    s->status = 1;
+    return 0;
+  }
+
+  if ((flags & FLAGS_NOENV)) {
+    lua_pushboolean(L, 1);
+    lua_setfield(L, LUA_REGISTRYINDEX, "LUA_NOENV");
+  }
+
+  /* Stop collector during library initialization. */
+  lua_gc(L, LUA_GCSTOP, 0);
+  luaL_openlibs(L);
+  lua_gc(L, LUA_GCRESTART, -1);
+
+  createargtable(L, argv, s->argc, argn);
+
+  if (!(flags & FLAGS_NOENV)) {
+    s->status = handle_luainit(L);
+    if (s->status != LUA_OK) return 0;
+  }
+
+  if ((flags & FLAGS_VERSION)) print_version();
+
+  s->status = runargs(L, argv, argn);
+  if (s->status != LUA_OK) return 0;
+
+  if (s->argc > argn) {
+    s->status = handle_script(L, argv + argn);
+    if (s->status != LUA_OK) return 0;
+  }
+
+  if ((flags & FLAGS_INTERACTIVE)) {
+    print_jit_status(L);
+    dotty(L);
+  } else if (s->argc == argn && !(flags & (FLAGS_EXEC|FLAGS_VERSION))) {
+    if (lua_stdin_is_tty()) {
+      print_version();
+      print_jit_status(L);
+      dotty(L);
+    } else {
+      dofile(L, NULL);  /* Executes stdin as a file. */
+    }
+  }
+  return 0;
+}
+
+int main(int argc, char **argv)
+{
+  int status;
+  lua_State *L;
+  if (!argv[0]) argv = empty_argv; else if (argv[0][0]) progname = argv[0];
+  L = lua_open();
+  if (L == NULL) {
+    l_message("cannot create state: not enough memory");
+    return EXIT_FAILURE;
+  }
+  smain.argc = argc;
+  smain.argv = argv;
+  status = lua_cpcall(L, pmain, NULL);
+  report(L, status);
+  lua_close(L);
+  return (status || smain.status > 0) ? EXIT_FAILURE : EXIT_SUCCESS;
+}
+
diff --git a/libs/luajit-cmake/luajit/src/luajit.h b/libs/luajit-cmake/luajit/src/luajit.h
new file mode 100644
index 0000000..31f1eb1
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/luajit.h
@@ -0,0 +1,79 @@
+/*
+** LuaJIT -- a Just-In-Time Compiler for Lua. https://luajit.org/
+**
+** Copyright (C) 2005-2022 Mike Pall. All rights reserved.
+**
+** Permission is hereby granted, free of charge, to any person obtaining
+** a copy of this software and associated documentation files (the
+** "Software"), to deal in the Software without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Software, and to
+** permit persons to whom the Software is furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be
+** included in all copies or substantial portions of the Software.
+**
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+** SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+**
+** [ MIT license: https://www.opensource.org/licenses/mit-license.php ]
+*/
+
+#ifndef _LUAJIT_H
+#define _LUAJIT_H
+
+#include "lua.h"
+
+#define LUAJIT_VERSION		"LuaJIT 2.1.0-beta3"
+#define LUAJIT_VERSION_NUM	20100  /* Version 2.1.0 = 02.01.00. */
+#define LUAJIT_VERSION_SYM	luaJIT_version_2_1_0_beta3
+#define LUAJIT_COPYRIGHT	"Copyright (C) 2005-2022 Mike Pall"
+#define LUAJIT_URL		"https://luajit.org/"
+
+/* Modes for luaJIT_setmode. */
+#define LUAJIT_MODE_MASK	0x00ff
+
+enum {
+  LUAJIT_MODE_ENGINE,		/* Set mode for whole JIT engine. */
+  LUAJIT_MODE_DEBUG,		/* Set debug mode (idx = level). */
+
+  LUAJIT_MODE_FUNC,		/* Change mode for a function. */
+  LUAJIT_MODE_ALLFUNC,		/* Recurse into subroutine protos. */
+  LUAJIT_MODE_ALLSUBFUNC,	/* Change only the subroutines. */
+
+  LUAJIT_MODE_TRACE,		/* Flush a compiled trace. */
+
+  LUAJIT_MODE_WRAPCFUNC = 0x10,	/* Set wrapper mode for C function calls. */
+
+  LUAJIT_MODE_MAX
+};
+
+/* Flags or'ed in to the mode. */
+#define LUAJIT_MODE_OFF		0x0000	/* Turn feature off. */
+#define LUAJIT_MODE_ON		0x0100	/* Turn feature on. */
+#define LUAJIT_MODE_FLUSH	0x0200	/* Flush JIT-compiled code. */
+
+/* LuaJIT public C API. */
+
+/* Control the JIT engine. */
+LUA_API int luaJIT_setmode(lua_State *L, int idx, int mode);
+
+/* Low-overhead profiling API. */
+typedef void (*luaJIT_profile_callback)(void *data, lua_State *L,
+					int samples, int vmstate);
+LUA_API void luaJIT_profile_start(lua_State *L, const char *mode,
+				  luaJIT_profile_callback cb, void *data);
+LUA_API void luaJIT_profile_stop(lua_State *L);
+LUA_API const char *luaJIT_profile_dumpstack(lua_State *L, const char *fmt,
+					     int depth, size_t *len);
+
+/* Enforce (dynamic) linker error for version mismatches. Call from main. */
+LUA_API void LUAJIT_VERSION_SYM(void);
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/lualib.h b/libs/luajit-cmake/luajit/src/lualib.h
new file mode 100644
index 0000000..8774845
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/lualib.h
@@ -0,0 +1,44 @@
+/*
+** Standard library header.
+** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#ifndef _LUALIB_H
+#define _LUALIB_H
+
+#include "lua.h"
+
+#define LUA_FILEHANDLE	"FILE*"
+
+#define LUA_COLIBNAME	"coroutine"
+#define LUA_MATHLIBNAME	"math"
+#define LUA_STRLIBNAME	"string"
+#define LUA_TABLIBNAME	"table"
+#define LUA_IOLIBNAME	"io"
+#define LUA_OSLIBNAME	"os"
+#define LUA_LOADLIBNAME	"package"
+#define LUA_DBLIBNAME	"debug"
+#define LUA_BITLIBNAME	"bit"
+#define LUA_JITLIBNAME	"jit"
+#define LUA_FFILIBNAME	"ffi"
+
+LUALIB_API int luaopen_base(lua_State *L);
+LUALIB_API int luaopen_math(lua_State *L);
+LUALIB_API int luaopen_string(lua_State *L);
+LUALIB_API int luaopen_table(lua_State *L);
+LUALIB_API int luaopen_io(lua_State *L);
+LUALIB_API int luaopen_os(lua_State *L);
+LUALIB_API int luaopen_package(lua_State *L);
+LUALIB_API int luaopen_debug(lua_State *L);
+LUALIB_API int luaopen_bit(lua_State *L);
+LUALIB_API int luaopen_jit(lua_State *L);
+LUALIB_API int luaopen_ffi(lua_State *L);
+LUALIB_API int luaopen_string_buffer(lua_State *L);
+
+LUALIB_API void luaL_openlibs(lua_State *L);
+
+#ifndef lua_assert
+#define lua_assert(x)	((void)0)
+#endif
+
+#endif
diff --git a/libs/luajit-cmake/luajit/src/msvcbuild.bat b/libs/luajit-cmake/luajit/src/msvcbuild.bat
new file mode 100644
index 0000000..d323d8d
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/msvcbuild.bat
@@ -0,0 +1,127 @@
+@rem Script to build LuaJIT with MSVC.

+@rem Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h

+@rem

+@rem Open a "Visual Studio Command Prompt" (either x86 or x64).

+@rem Then cd to this directory and run this script. Use the following

+@rem options (in order), if needed. The default is a dynamic release build.

+@rem

+@rem   nogc64   disable LJ_GC64 mode for x64

+@rem   debug    emit debug symbols

+@rem   amalg    amalgamated build

+@rem   static   static linkage

+

+@if not defined INCLUDE goto :FAIL

+

+@setlocal

+@rem Add more debug flags here, e.g. DEBUGCFLAGS=/DLUA_USE_APICHECK

+@set DEBUGCFLAGS=

+@set LJCOMPILE=cl /nologo /c /O2 /W3 /D_CRT_SECURE_NO_DEPRECATE /D_CRT_STDIO_INLINE=__declspec(dllexport)__inline

+@set LJLINK=link /nologo

+@set LJMT=mt /nologo

+@set LJLIB=lib /nologo /nodefaultlib

+@set DASMDIR=..\dynasm

+@set DASM=%DASMDIR%\dynasm.lua

+@set DASC=vm_x64.dasc

+@set LJDLLNAME=lua51.dll

+@set LJLIBNAME=lua51.lib

+@set BUILDTYPE=release

+@set ALL_LIB=lib_base.c lib_math.c lib_bit.c lib_string.c lib_table.c lib_io.c lib_os.c lib_package.c lib_debug.c lib_jit.c lib_ffi.c lib_buffer.c

+

+%LJCOMPILE% host\minilua.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /out:minilua.exe minilua.obj

+@if errorlevel 1 goto :BAD

+if exist minilua.exe.manifest^

+  %LJMT% -manifest minilua.exe.manifest -outputresource:minilua.exe

+

+@set DASMFLAGS=-D WIN -D JIT -D FFI -D P64

+@set LJARCH=x64

+@minilua

+@if errorlevel 8 goto :X64

+@set DASC=vm_x86.dasc

+@set DASMFLAGS=-D WIN -D JIT -D FFI

+@set LJARCH=x86

+@set LJCOMPILE=%LJCOMPILE% /arch:SSE2

+:X64

+@if "%1" neq "nogc64" goto :GC64

+@shift

+@set DASC=vm_x86.dasc

+@set LJCOMPILE=%LJCOMPILE% /DLUAJIT_DISABLE_GC64

+:GC64

+minilua %DASM% -LN %DASMFLAGS% -o host\buildvm_arch.h %DASC%

+@if errorlevel 1 goto :BAD

+

+%LJCOMPILE% /I "." /I %DASMDIR% host\buildvm*.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /out:buildvm.exe buildvm*.obj

+@if errorlevel 1 goto :BAD

+if exist buildvm.exe.manifest^

+  %LJMT% -manifest buildvm.exe.manifest -outputresource:buildvm.exe

+

+buildvm -m peobj -o lj_vm.obj

+@if errorlevel 1 goto :BAD

+buildvm -m bcdef -o lj_bcdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m ffdef -o lj_ffdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m libdef -o lj_libdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m recdef -o lj_recdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m vmdef -o jit\vmdef.lua %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m folddef -o lj_folddef.h lj_opt_fold.c

+@if errorlevel 1 goto :BAD

+

+@if "%1" neq "debug" goto :NODEBUG

+@shift

+@set BUILDTYPE=debug

+@set LJCOMPILE=%LJCOMPILE% /Zi %DEBUGCFLAGS%

+@set LJLINK=%LJLINK% /opt:ref /opt:icf /incremental:no

+:NODEBUG

+@set LJLINK=%LJLINK% /%BUILDTYPE%

+@if "%1"=="amalg" goto :AMALGDLL

+@if "%1"=="static" goto :STATIC

+%LJCOMPILE% /MD /DLUA_BUILD_AS_DLL lj_*.c lib_*.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /DLL /out:%LJDLLNAME% lj_*.obj lib_*.obj

+@if errorlevel 1 goto :BAD

+@goto :MTDLL

+:STATIC

+%LJCOMPILE% lj_*.c lib_*.c

+@if errorlevel 1 goto :BAD

+%LJLIB% /OUT:%LJLIBNAME% lj_*.obj lib_*.obj

+@if errorlevel 1 goto :BAD

+@goto :MTDLL

+:AMALGDLL

+%LJCOMPILE% /MD /DLUA_BUILD_AS_DLL ljamalg.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /DLL /out:%LJDLLNAME% ljamalg.obj lj_vm.obj

+@if errorlevel 1 goto :BAD

+:MTDLL

+if exist %LJDLLNAME%.manifest^

+  %LJMT% -manifest %LJDLLNAME%.manifest -outputresource:%LJDLLNAME%;2

+

+%LJCOMPILE% luajit.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /out:luajit.exe luajit.obj %LJLIBNAME%

+@if errorlevel 1 goto :BAD

+if exist luajit.exe.manifest^

+  %LJMT% -manifest luajit.exe.manifest -outputresource:luajit.exe

+

+@del *.obj *.manifest minilua.exe buildvm.exe

+@del host\buildvm_arch.h

+@del lj_bcdef.h lj_ffdef.h lj_libdef.h lj_recdef.h lj_folddef.h

+@echo.

+@echo === Successfully built LuaJIT for Windows/%LJARCH% ===

+

+@goto :END

+:BAD

+@echo.

+@echo *******************************************************

+@echo *** Build FAILED -- Please check the error messages ***

+@echo *******************************************************

+@goto :END

+:FAIL

+@echo You must open a "Visual Studio Command Prompt" to run this script

+:END

diff --git a/libs/luajit-cmake/luajit/src/nxbuild.bat b/libs/luajit-cmake/luajit/src/nxbuild.bat
new file mode 100644
index 0000000..c4a21f0
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/nxbuild.bat
@@ -0,0 +1,159 @@
+@rem Script to build LuaJIT with NintendoSDK + NX Addon.

+@rem Donated to the public domain by Swyter.

+@rem

+@rem To run this script you must open a "Native Tools Command Prompt for VS".

+@rem

+@rem Either the x86 version for NX32, or x64 for the NX64 target.

+@rem This is because the pointer size of the LuaJIT host tools (buildvm.exe)

+@rem must match the cross-compiled target (32 or 64 bits).

+@rem

+@rem Then cd to this directory and run this script.

+@rem

+@rem Recommended invocation:

+@rem

+@rem nxbuild            # release build, amalgamated

+@rem nxbuild debug      # debug build, amalgamated

+@rem

+@rem Additional command-line options (not generally recommended):

+@rem

+@rem noamalg            # (after debug) non-amalgamated build

+

+@if not defined INCLUDE goto :FAIL

+@if not defined NINTENDO_SDK_ROOT goto :FAIL

+@if not defined PLATFORM goto :FAIL

+

+@if "%platform%" == "x86" goto :DO_NX32

+@if "%platform%" == "x64" goto :DO_NX64

+

+@echo Error: Current host platform is %platform%!

+@echo.

+@goto :FAIL

+

+@setlocal

+

+:DO_NX32

+@set DASC=vm_arm.dasc

+@set DASMFLAGS= -D HFABI -D FPU

+@set DASMTARGET= -D LUAJIT_TARGET=LUAJIT_ARCH_ARM

+@set HOST_PTR_SIZE=4

+goto :BEGIN

+

+:DO_NX64

+@set DASC=vm_arm64.dasc

+@set DASMFLAGS= -D ENDIAN_LE

+@set DASMTARGET= -D LUAJIT_TARGET=LUAJIT_ARCH_ARM64

+@set HOST_PTR_SIZE=8

+

+:BEGIN

+@rem ---- Host compiler ----

+@set LJCOMPILE=cl /nologo /c /MD /O2 /W3 /wo4146 /wo4244 /D_CRT_SECURE_NO_DEPRECATE

+@set LJLINK=link /nologo

+@set LJMT=mt /nologo

+@set DASMDIR=..\dynasm

+@set DASM=%DASMDIR%\dynasm.lua

+@set ALL_LIB=lib_base.c lib_math.c lib_bit.c lib_string.c lib_table.c lib_io.c lib_os.c lib_package.c lib_debug.c lib_jit.c lib_ffi.c lib_buffer.c

+

+%LJCOMPILE% host\minilua.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /out:minilua.exe minilua.obj

+@if errorlevel 1 goto :BAD

+if exist minilua.exe.manifest^

+  %LJMT% -manifest minilua.exe.manifest -outputresource:minilua.exe

+

+@rem Check that we have the right 32/64 bit host compiler to generate the right virtual machine files.

+@minilua

+@if "%ERRORLEVEL%" == "%HOST_PTR_SIZE%" goto :PASSED_PTR_CHECK

+

+@echo The pointer size of the host in bytes (%HOST_PTR_SIZE%) does not match the expected value (%errorlevel%).

+@echo Check that the script is being ran under the correct x86/x64 VS prompt.

+@goto :BAD

+

+:PASSED_PTR_CHECK

+@set DASMFLAGS=%DASMFLAGS% %DASMTARGET% -D LJ_TARGET_NX -D LUAJIT_OS=LUAJIT_OS_OTHER -D LUAJIT_DISABLE_JIT -D LUAJIT_DISABLE_FFI

+minilua %DASM% -LN %DASMFLAGS% -o host\buildvm_arch.h %DASC%

+@if errorlevel 1 goto :BAD

+%LJCOMPILE% /I "." /I %DASMDIR% %DASMTARGET% -D LJ_TARGET_NX -DLUAJIT_OS=LUAJIT_OS_OTHER -DLUAJIT_DISABLE_JIT -DLUAJIT_DISABLE_FFI host\buildvm*.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /out:buildvm.exe buildvm*.obj

+@if errorlevel 1 goto :BAD

+if exist buildvm.exe.manifest^

+  %LJMT% -manifest buildvm.exe.manifest -outputresource:buildvm.exe

+

+buildvm -m elfasm -o lj_vm.s

+@if errorlevel 1 goto :BAD

+buildvm -m bcdef -o lj_bcdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m ffdef -o lj_ffdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m libdef -o lj_libdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m recdef -o lj_recdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m vmdef -o jit\vmdef.lua %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m folddef -o lj_folddef.h lj_opt_fold.c

+@if errorlevel 1 goto :BAD

+

+@rem ---- Cross compiler ----

+@if "%platform%" neq "x64" goto :NX32_CROSSBUILD

+@set LJCOMPILE="%NINTENDO_SDK_ROOT%\Compilers\NX\nx\aarch64\bin\clang" -Wall -I%NINTENDO_SDK_ROOT%\Include %DASMTARGET% -DLUAJIT_OS=LUAJIT_OS_OTHER -DLUAJIT_DISABLE_JIT -DLUAJIT_DISABLE_FFI -DLUAJIT_USE_SYSMALLOC -c

+@set LJLIB="%NINTENDO_SDK_ROOT%\Compilers\NX\nx\aarch64\bin\aarch64-nintendo-nx-elf-ar" rc

+@set TARGETLIB_SUFFIX=nx64

+

+%NINTENDO_SDK_ROOT%\Compilers\NX\nx\aarch64\bin\aarch64-nintendo-nx-elf-as -o lj_vm.o lj_vm.s

+goto :DEBUGCHECK

+

+:NX32_CROSSBUILD

+@set LJCOMPILE="%NINTENDO_SDK_ROOT%\Compilers\NX\nx\armv7l\bin\clang" -Wall -I%NINTENDO_SDK_ROOT%\Include %DASMTARGET% -DLUAJIT_OS=LUAJIT_OS_OTHER -DLUAJIT_DISABLE_JIT -DLUAJIT_DISABLE_FFI -DLUAJIT_USE_SYSMALLOC -c

+@set LJLIB="%NINTENDO_SDK_ROOT%\Compilers\NX\nx\armv7l\bin\armv7l-nintendo-nx-eabihf-ar" rc

+@set TARGETLIB_SUFFIX=nx32

+

+%NINTENDO_SDK_ROOT%\Compilers\NX\nx\armv7l\bin\armv7l-nintendo-nx-eabihf-as -o lj_vm.o lj_vm.s

+:DEBUGCHECK

+

+@if "%1" neq "debug" goto :NODEBUG

+@shift

+@set LJCOMPILE=%LJCOMPILE% -DNN_SDK_BUILD_DEBUG -g -O0

+@set TARGETLIB=libluajitD_%TARGETLIB_SUFFIX%.a

+goto :BUILD

+:NODEBUG

+@set LJCOMPILE=%LJCOMPILE% -DNN_SDK_BUILD_RELEASE -O3

+@set TARGETLIB=libluajit_%TARGETLIB_SUFFIX%.a

+:BUILD

+del %TARGETLIB%

+@if "%1" neq "noamalg" goto :AMALG

+for %%f in (lj_*.c lib_*.c) do (

+  %LJCOMPILE% %%f

+  @if errorlevel 1 goto :BAD

+)

+

+%LJLIB% %TARGETLIB% lj_*.o lib_*.o

+@if errorlevel 1 goto :BAD

+@goto :NOAMALG

+:AMALG

+%LJCOMPILE% ljamalg.c

+@if errorlevel 1 goto :BAD

+%LJLIB% %TARGETLIB% ljamalg.o lj_vm.o

+@if errorlevel 1 goto :BAD

+:NOAMALG

+

+@del *.o *.obj *.manifest minilua.exe buildvm.exe

+@echo.

+@echo === Successfully built LuaJIT for Nintendo Switch (%TARGETLIB_SUFFIX%) ===

+

+@goto :END

+:BAD

+@echo.

+@echo *******************************************************

+@echo *** Build FAILED -- Please check the error messages ***

+@echo *******************************************************

+@goto :END

+:FAIL

+@echo To run this script you must open a "Native Tools Command Prompt for VS".

+@echo.

+@echo Either the x86 version for NX32, or x64 for the NX64 target.

+@echo This is because the pointer size of the LuaJIT host tools (buildvm.exe)

+@echo must match the cross-compiled target (32 or 64 bits).

+@echo.

+@echo Keep in mind that NintendoSDK + NX Addon must be installed, too.

+:END

diff --git a/libs/luajit-cmake/luajit/src/ps4build.bat b/libs/luajit-cmake/luajit/src/ps4build.bat
new file mode 100644
index 0000000..fdd09d8
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/ps4build.bat
@@ -0,0 +1,123 @@
+@rem Script to build LuaJIT with the PS4 SDK.

+@rem Donated to the public domain.

+@rem

+@rem Open a "Visual Studio .NET Command Prompt" (64 bit host compiler)

+@rem or "VS2015 x64 Native Tools Command Prompt".

+@rem

+@rem Then cd to this directory and run this script.

+@rem

+@rem Recommended invocation:

+@rem

+@rem ps4build        release build, amalgamated, 64-bit GC

+@rem ps4build debug    debug build, amalgamated, 64-bit GC

+@rem

+@rem Additional command-line options (not generally recommended):

+@rem

+@rem gc32 (before debug)    32-bit GC

+@rem noamalg (after debug)  non-amalgamated build

+

+@if not defined INCLUDE goto :FAIL

+@if not defined SCE_ORBIS_SDK_DIR goto :FAIL

+

+@setlocal

+@rem ---- Host compiler ----

+@set LJCOMPILE=cl /nologo /c /MD /O2 /W3 /D_CRT_SECURE_NO_DEPRECATE

+@set LJLINK=link /nologo

+@set LJMT=mt /nologo

+@set DASMDIR=..\dynasm

+@set DASM=%DASMDIR%\dynasm.lua

+@set ALL_LIB=lib_base.c lib_math.c lib_bit.c lib_string.c lib_table.c lib_io.c lib_os.c lib_package.c lib_debug.c lib_jit.c lib_ffi.c lib_buffer.c

+@set GC64=

+@set DASC=vm_x64.dasc

+

+@if "%1" neq "gc32" goto :NOGC32

+@shift

+@set GC64=-DLUAJIT_DISABLE_GC64

+@set DASC=vm_x86.dasc

+:NOGC32

+

+%LJCOMPILE% host\minilua.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /out:minilua.exe minilua.obj

+@if errorlevel 1 goto :BAD

+if exist minilua.exe.manifest^

+  %LJMT% -manifest minilua.exe.manifest -outputresource:minilua.exe

+

+@rem Check for 64 bit host compiler.

+@minilua

+@if not errorlevel 8 goto :FAIL

+

+@set DASMFLAGS=-D P64 -D NO_UNWIND

+minilua %DASM% -LN %DASMFLAGS% -o host\buildvm_arch.h %DASC%

+@if errorlevel 1 goto :BAD

+

+%LJCOMPILE% /I "." /I %DASMDIR% %GC64% -DLUAJIT_TARGET=LUAJIT_ARCH_X64 -DLUAJIT_OS=LUAJIT_OS_OTHER -DLUAJIT_DISABLE_JIT -DLUAJIT_DISABLE_FFI -DLUAJIT_NO_UNWIND host\buildvm*.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /out:buildvm.exe buildvm*.obj

+@if errorlevel 1 goto :BAD

+if exist buildvm.exe.manifest^

+  %LJMT% -manifest buildvm.exe.manifest -outputresource:buildvm.exe

+

+buildvm -m elfasm -o lj_vm.s

+@if errorlevel 1 goto :BAD

+buildvm -m bcdef -o lj_bcdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m ffdef -o lj_ffdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m libdef -o lj_libdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m recdef -o lj_recdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m vmdef -o jit\vmdef.lua %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m folddef -o lj_folddef.h lj_opt_fold.c

+@if errorlevel 1 goto :BAD

+

+@rem ---- Cross compiler ----

+@set LJCOMPILE="%SCE_ORBIS_SDK_DIR%\host_tools\bin\orbis-clang" -c -Wall -DLUAJIT_DISABLE_FFI %GC64%

+@set LJLIB="%SCE_ORBIS_SDK_DIR%\host_tools\bin\orbis-ar" rcus

+@set INCLUDE=""

+

+orbis-as -o lj_vm.o lj_vm.s

+

+@if "%1" neq "debug" goto :NODEBUG

+@shift

+@set LJCOMPILE=%LJCOMPILE% -g -O0

+@set TARGETLIB=libluajitD_ps4.a

+goto :BUILD

+:NODEBUG

+@set LJCOMPILE=%LJCOMPILE% -O2

+@set TARGETLIB=libluajit_ps4.a

+:BUILD

+del %TARGETLIB%

+@if "%1" neq "noamalg" goto :AMALG

+for %%f in (lj_*.c lib_*.c) do (

+  %LJCOMPILE% %%f

+  @if errorlevel 1 goto :BAD

+)

+

+%LJLIB% %TARGETLIB% lj_*.o lib_*.o

+@if errorlevel 1 goto :BAD

+@goto :NOAMALG

+:AMALG

+%LJCOMPILE% ljamalg.c

+@if errorlevel 1 goto :BAD

+%LJLIB% %TARGETLIB% ljamalg.o lj_vm.o

+@if errorlevel 1 goto :BAD

+:NOAMALG

+

+@del *.o *.obj *.manifest minilua.exe buildvm.exe

+@echo.

+@echo === Successfully built LuaJIT for PS4 ===

+

+@goto :END

+:BAD

+@echo.

+@echo *******************************************************

+@echo *** Build FAILED -- Please check the error messages ***

+@echo *******************************************************

+@goto :END

+:FAIL

+@echo To run this script you must open a "Visual Studio .NET Command Prompt"

+@echo (64 bit host compiler). The PS4 Orbis SDK must be installed, too.

+:END

diff --git a/libs/luajit-cmake/luajit/src/ps5build.bat b/libs/luajit-cmake/luajit/src/ps5build.bat
new file mode 100644
index 0000000..0b1ebd5
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/ps5build.bat
@@ -0,0 +1,123 @@
+@rem Script to build LuaJIT with the PS5 SDK.

+@rem Donated to the public domain.

+@rem

+@rem Open a "Visual Studio .NET Command Prompt" (64 bit host compiler)

+@rem or "VS20xx x64 Native Tools Command Prompt".

+@rem

+@rem Then cd to this directory and run this script.

+@rem

+@rem Recommended invocation:

+@rem

+@rem ps5build        release build, amalgamated, 64-bit GC

+@rem ps5build debug    debug build, amalgamated, 64-bit GC

+@rem

+@rem Additional command-line options (not generally recommended):

+@rem

+@rem gc32 (before debug)    32-bit GC

+@rem noamalg (after debug)  non-amalgamated build

+

+@if not defined INCLUDE goto :FAIL

+@if not defined SCE_PROSPERO_SDK_DIR goto :FAIL

+

+@setlocal

+@rem ---- Host compiler ----

+@set LJCOMPILE=cl /nologo /c /MD /O2 /W3 /D_CRT_SECURE_NO_DEPRECATE

+@set LJLINK=link /nologo

+@set LJMT=mt /nologo

+@set DASMDIR=..\dynasm

+@set DASM=%DASMDIR%\dynasm.lua

+@set ALL_LIB=lib_base.c lib_math.c lib_bit.c lib_string.c lib_table.c lib_io.c lib_os.c lib_package.c lib_debug.c lib_jit.c lib_ffi.c lib_buffer.c

+@set GC64=

+@set DASC=vm_x64.dasc

+

+@if "%1" neq "gc32" goto :NOGC32

+@shift

+@set GC64=-DLUAJIT_DISABLE_GC64

+@set DASC=vm_x86.dasc

+:NOGC32

+

+%LJCOMPILE% host\minilua.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /out:minilua.exe minilua.obj

+@if errorlevel 1 goto :BAD

+if exist minilua.exe.manifest^

+  %LJMT% -manifest minilua.exe.manifest -outputresource:minilua.exe

+

+@rem Check for 64 bit host compiler.

+@minilua

+@if not errorlevel 8 goto :FAIL

+

+@set DASMFLAGS=-D P64 -D NO_UNWIND

+minilua %DASM% -LN %DASMFLAGS% -o host\buildvm_arch.h %DASC%

+@if errorlevel 1 goto :BAD

+

+%LJCOMPILE% /I "." /I %DASMDIR% %GC64% -DLUAJIT_TARGET=LUAJIT_ARCH_X64 -DLUAJIT_OS=LUAJIT_OS_OTHER -DLUAJIT_DISABLE_JIT -DLUAJIT_DISABLE_FFI -DLUAJIT_NO_UNWIND host\buildvm*.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /out:buildvm.exe buildvm*.obj

+@if errorlevel 1 goto :BAD

+if exist buildvm.exe.manifest^

+  %LJMT% -manifest buildvm.exe.manifest -outputresource:buildvm.exe

+

+buildvm -m elfasm -o lj_vm.s

+@if errorlevel 1 goto :BAD

+buildvm -m bcdef -o lj_bcdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m ffdef -o lj_ffdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m libdef -o lj_libdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m recdef -o lj_recdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m vmdef -o jit\vmdef.lua %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m folddef -o lj_folddef.h lj_opt_fold.c

+@if errorlevel 1 goto :BAD

+

+@rem ---- Cross compiler ----

+@set LJCOMPILE="%SCE_PROSPERO_SDK_DIR%\host_tools\bin\prospero-clang" -c -Wall -DLUAJIT_DISABLE_FFI %GC64%

+@set LJLIB="%SCE_PROSPERO_SDK_DIR%\host_tools\bin\prospero-llvm-ar" rcus

+@set INCLUDE=""

+

+%SCE_PROSPERO_SDK_DIR%\host_tools\bin\prospero-llvm-as -o lj_vm.o lj_vm.s

+

+@if "%1" neq "debug" goto :NODEBUG

+@shift

+@set LJCOMPILE=%LJCOMPILE% -g -O0

+@set TARGETLIB=libluajitD_ps5.a

+goto :BUILD

+:NODEBUG

+@set LJCOMPILE=%LJCOMPILE% -O2

+@set TARGETLIB=libluajit_ps5.a

+:BUILD

+del %TARGETLIB%

+@if "%1" neq "noamalg" goto :AMALG

+for %%f in (lj_*.c lib_*.c) do (

+  %LJCOMPILE% %%f

+  @if errorlevel 1 goto :BAD

+)

+

+%LJLIB% %TARGETLIB% lj_*.o lib_*.o

+@if errorlevel 1 goto :BAD

+@goto :NOAMALG

+:AMALG

+%LJCOMPILE% ljamalg.c

+@if errorlevel 1 goto :BAD

+%LJLIB% %TARGETLIB% ljamalg.o lj_vm.o

+@if errorlevel 1 goto :BAD

+:NOAMALG

+

+@del *.o *.obj *.manifest minilua.exe buildvm.exe

+@echo.

+@echo === Successfully built LuaJIT for PS5 ===

+

+@goto :END

+:BAD

+@echo.

+@echo *******************************************************

+@echo *** Build FAILED -- Please check the error messages ***

+@echo *******************************************************

+@goto :END

+:FAIL

+@echo To run this script you must open a "Visual Studio .NET Command Prompt"

+@echo (64 bit host compiler). The PS5 Prospero SDK must be installed, too.

+:END

diff --git a/libs/luajit-cmake/luajit/src/psvitabuild.bat b/libs/luajit-cmake/luajit/src/psvitabuild.bat
new file mode 100644
index 0000000..2980e15
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/psvitabuild.bat
@@ -0,0 +1,93 @@
+@rem Script to build LuaJIT with the PS Vita SDK.

+@rem Donated to the public domain.

+@rem

+@rem Open a "Visual Studio .NET Command Prompt" (32 bit host compiler)

+@rem Then cd to this directory and run this script.

+

+@if not defined INCLUDE goto :FAIL

+@if not defined SCE_PSP2_SDK_DIR goto :FAIL

+

+@setlocal

+@rem ---- Host compiler ----

+@set LJCOMPILE=cl /nologo /c /MD /O2 /W3 /D_CRT_SECURE_NO_DEPRECATE

+@set LJLINK=link /nologo

+@set LJMT=mt /nologo

+@set DASMDIR=..\dynasm

+@set DASM=%DASMDIR%\dynasm.lua

+@set ALL_LIB=lib_base.c lib_math.c lib_bit.c lib_string.c lib_table.c lib_io.c lib_os.c lib_package.c lib_debug.c lib_jit.c lib_ffi.c lib_buffer.c

+

+%LJCOMPILE% host\minilua.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /out:minilua.exe minilua.obj

+@if errorlevel 1 goto :BAD

+if exist minilua.exe.manifest^

+  %LJMT% -manifest minilua.exe.manifest -outputresource:minilua.exe

+

+@rem Check for 32 bit host compiler.

+@minilua

+@if errorlevel 8 goto :FAIL

+

+@set DASMFLAGS=-D FPU -D HFABI

+minilua %DASM% -LN %DASMFLAGS% -o host\buildvm_arch.h vm_arm.dasc

+@if errorlevel 1 goto :BAD

+

+%LJCOMPILE% /I "." /I %DASMDIR% -DLUAJIT_TARGET=LUAJIT_ARCH_ARM -DLUAJIT_OS=LUAJIT_OS_OTHER -DLUAJIT_DISABLE_JIT -DLUAJIT_DISABLE_FFI -DLJ_TARGET_PSVITA=1 host\buildvm*.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /out:buildvm.exe buildvm*.obj

+@if errorlevel 1 goto :BAD

+if exist buildvm.exe.manifest^

+  %LJMT% -manifest buildvm.exe.manifest -outputresource:buildvm.exe

+

+buildvm -m elfasm -o lj_vm.s

+@if errorlevel 1 goto :BAD

+buildvm -m bcdef -o lj_bcdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m ffdef -o lj_ffdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m libdef -o lj_libdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m recdef -o lj_recdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m vmdef -o jit\vmdef.lua %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m folddef -o lj_folddef.h lj_opt_fold.c

+@if errorlevel 1 goto :BAD

+

+@rem ---- Cross compiler ----

+@set LJCOMPILE="%SCE_PSP2_SDK_DIR%\host_tools\build\bin\psp2snc" -c -w -DLUAJIT_DISABLE_FFI -DLUAJIT_USE_SYSMALLOC

+@set LJLIB="%SCE_PSP2_SDK_DIR%\host_tools\build\bin\psp2ld32" -r --output=

+@set INCLUDE=""

+

+"%SCE_PSP2_SDK_DIR%\host_tools\build\bin\psp2as" -o lj_vm.o lj_vm.s

+

+@if "%1" neq "debug" goto :NODEBUG

+@shift

+@set LJCOMPILE=%LJCOMPILE% -g -O0

+@set TARGETLIB=libluajitD.a

+goto :BUILD

+:NODEBUG

+@set LJCOMPILE=%LJCOMPILE% -O2

+@set TARGETLIB=libluajit.a

+:BUILD

+del %TARGETLIB%

+

+%LJCOMPILE% ljamalg.c

+@if errorlevel 1 goto :BAD

+%LJLIB%%TARGETLIB% ljamalg.o lj_vm.o

+@if errorlevel 1 goto :BAD

+

+@del *.o *.obj *.manifest minilua.exe buildvm.exe

+@echo.

+@echo === Successfully built LuaJIT for PS Vita ===

+

+@goto :END

+:BAD

+@echo.

+@echo *******************************************************

+@echo *** Build FAILED -- Please check the error messages ***

+@echo *******************************************************

+@goto :END

+:FAIL

+@echo To run this script you must open a "Visual Studio .NET Command Prompt"

+@echo (32 bit host compiler). The PS Vita SDK must be installed, too.

+:END

diff --git a/libs/luajit-cmake/luajit/src/vm_arm.dasc b/libs/luajit-cmake/luajit/src/vm_arm.dasc
new file mode 100644
index 0000000..770c160
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/vm_arm.dasc
@@ -0,0 +1,4663 @@
+|// Low-level VM code for ARM CPUs.
+|// Bytecode interpreter, fast functions and helper functions.
+|// Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+|
+|.arch arm
+|.section code_op, code_sub
+|
+|.actionlist build_actionlist
+|.globals GLOB_
+|.globalnames globnames
+|.externnames extnames
+|
+|// Note: The ragged indentation of the instructions is intentional.
+|//       The starting columns indicate data dependencies.
+|
+|//-----------------------------------------------------------------------
+|
+|// Fixed register assignments for the interpreter.
+|
+|// The following must be C callee-save.
+|.define MASKR8,	r4	// 255*8 constant for fast bytecode decoding.
+|.define KBASE,		r5	// Constants of current Lua function.
+|.define PC,		r6	// Next PC.
+|.define DISPATCH,	r7	// Opcode dispatch table.
+|.define LREG,		r8	// Register holding lua_State (also in SAVE_L).
+|
+|// C callee-save in EABI, but often refetched. Temporary in iOS 3.0+.
+|.define BASE,		r9	// Base of current Lua stack frame.
+|
+|// The following temporaries are not saved across C calls, except for RA/RC.
+|.define RA,		r10	// Callee-save.
+|.define RC,		r11	// Callee-save.
+|.define RB,		r12
+|.define OP,		r12	// Overlaps RB, must not be lr.
+|.define INS,		lr
+|
+|// Calling conventions. Also used as temporaries.
+|.define CARG1,		r0
+|.define CARG2,		r1
+|.define CARG3,		r2
+|.define CARG4,		r3
+|.define CARG12,	r0	// For 1st soft-fp double.
+|.define CARG34,	r2	// For 2nd soft-fp double.
+|
+|.define CRET1,		r0
+|.define CRET2,		r1
+|
+|// Stack layout while in interpreter. Must match with lj_frame.h.
+|.define SAVE_R4,	[sp, #28]
+|.define CFRAME_SPACE,	#28
+|.define SAVE_ERRF,	[sp, #24]
+|.define SAVE_NRES,	[sp, #20]
+|.define SAVE_CFRAME,	[sp, #16]
+|.define SAVE_L,	[sp, #12]
+|.define SAVE_PC,	[sp, #8]
+|.define SAVE_MULTRES,	[sp, #4]
+|.define ARG5,		[sp]
+|
+|.define TMPDhi,	[sp, #4]
+|.define TMPDlo,	[sp]
+|.define TMPD,		[sp]
+|.define TMPDp,		sp
+|
+|.if FPU
+|.macro saveregs
+|  push {r5, r6, r7, r8, r9, r10, r11, lr}
+|  vpush {d8-d15}
+|  sub sp, sp, CFRAME_SPACE+4
+|  str r4, SAVE_R4
+|.endmacro
+|.macro restoreregs_ret
+|  ldr r4, SAVE_R4
+|  add sp, sp, CFRAME_SPACE+4
+|  vpop {d8-d15}
+|  pop {r5, r6, r7, r8, r9, r10, r11, pc}
+|.endmacro
+|.else
+|.macro saveregs
+|  push {r4, r5, r6, r7, r8, r9, r10, r11, lr}
+|  sub sp, sp, CFRAME_SPACE
+|.endmacro
+|.macro restoreregs_ret
+|  add sp, sp, CFRAME_SPACE
+|  pop {r4, r5, r6, r7, r8, r9, r10, r11, pc}
+|.endmacro
+|.endif
+|
+|// Type definitions. Some of these are only used for documentation.
+|.type L,		lua_State,	LREG
+|.type GL,		global_State
+|.type TVALUE,		TValue
+|.type GCOBJ,		GCobj
+|.type STR,		GCstr
+|.type TAB,		GCtab
+|.type LFUNC,		GCfuncL
+|.type CFUNC,		GCfuncC
+|.type PROTO,		GCproto
+|.type UPVAL,		GCupval
+|.type NODE,		Node
+|.type NARGS8,		int
+|.type TRACE,		GCtrace
+|.type SBUF,		SBuf
+|
+|//-----------------------------------------------------------------------
+|
+|// Trap for not-yet-implemented parts.
+|.macro NYI; ud; .endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Access to frame relative to BASE.
+|.define FRAME_FUNC,	#-8
+|.define FRAME_PC,	#-4
+|
+|.macro decode_RA8, dst, ins; and dst, MASKR8, ins, lsr #5; .endmacro
+|.macro decode_RB8, dst, ins; and dst, MASKR8, ins, lsr #21; .endmacro
+|.macro decode_RC8, dst, ins; and dst, MASKR8, ins, lsr #13; .endmacro
+|.macro decode_RD, dst, ins; lsr dst, ins, #16; .endmacro
+|.macro decode_OP, dst, ins; and dst, ins, #255; .endmacro
+|
+|// Instruction fetch.
+|.macro ins_NEXT1
+|  ldrb OP, [PC]
+|.endmacro
+|.macro ins_NEXT2
+|   ldr INS, [PC], #4
+|.endmacro
+|// Instruction decode+dispatch.
+|.macro ins_NEXT3
+|  ldr OP, [DISPATCH, OP, lsl #2]
+|   decode_RA8 RA, INS
+|   decode_RD RC, INS
+|  bx OP
+|.endmacro
+|.macro ins_NEXT
+|  ins_NEXT1
+|  ins_NEXT2
+|  ins_NEXT3
+|.endmacro
+|
+|// Instruction footer.
+|.if 1
+|  // Replicated dispatch. Less unpredictable branches, but higher I-Cache use.
+|  .define ins_next, ins_NEXT
+|  .define ins_next_, ins_NEXT
+|  .define ins_next1, ins_NEXT1
+|  .define ins_next2, ins_NEXT2
+|  .define ins_next3, ins_NEXT3
+|.else
+|  // Common dispatch. Lower I-Cache use, only one (very) unpredictable branch.
+|  // Affects only certain kinds of benchmarks (and only with -j off).
+|  .macro ins_next
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next1
+|  .endmacro
+|  .macro ins_next2
+|  .endmacro
+|  .macro ins_next3
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next_
+|  ->ins_next:
+|    ins_NEXT
+|  .endmacro
+|.endif
+|
+|// Avoid register name substitution for field name.
+#define field_pc	pc
+|
+|// Call decode and dispatch.
+|.macro ins_callt
+|  // BASE = new base, CARG3 = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+|  ldr PC, LFUNC:CARG3->field_pc
+|  ldrb OP, [PC]  // STALL: load PC. early PC.
+|   ldr INS, [PC], #4
+|  ldr OP, [DISPATCH, OP, lsl #2]  // STALL: load OP. early OP.
+|   decode_RA8 RA, INS
+|   add RA, RA, BASE
+|  bx OP
+|.endmacro
+|
+|.macro ins_call
+|  // BASE = new base, CARG3 = LFUNC/CFUNC, RC = nargs*8, PC = caller PC
+|  str PC, [BASE, FRAME_PC]
+|  ins_callt  // STALL: locked PC.
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Macros to test operand types.
+|.macro checktp, reg, tp; cmn reg, #-tp; .endmacro
+|.macro checktpeq, reg, tp; cmneq reg, #-tp; .endmacro
+|.macro checktpne, reg, tp; cmnne reg, #-tp; .endmacro
+|.macro checkstr, reg, target; checktp reg, LJ_TSTR; bne target; .endmacro
+|.macro checktab, reg, target; checktp reg, LJ_TTAB; bne target; .endmacro
+|.macro checkfunc, reg, target; checktp reg, LJ_TFUNC; bne target; .endmacro
+|
+|// Assumes DISPATCH is relative to GL.
+#define DISPATCH_GL(field)	(GG_DISP2G + (int)offsetof(global_State, field))
+#define DISPATCH_J(field)	(GG_DISP2J + (int)offsetof(jit_State, field))
+|
+#define PC2PROTO(field)  ((int)offsetof(GCproto, field)-(int)sizeof(GCproto))
+|
+|.macro hotcheck, delta
+|  lsr CARG1, PC, #1
+|  and CARG1, CARG1, #126
+|  sub CARG1, CARG1, #-GG_DISP2HOT
+|  ldrh CARG2, [DISPATCH, CARG1]
+|  subs CARG2, CARG2, #delta
+|  strh CARG2, [DISPATCH, CARG1]
+|.endmacro
+|
+|.macro hotloop
+|  hotcheck HOTCOUNT_LOOP
+|  blo ->vm_hotloop
+|.endmacro
+|
+|.macro hotcall
+|  hotcheck HOTCOUNT_CALL
+|  blo ->vm_hotcall
+|.endmacro
+|
+|// Set current VM state.
+|.macro mv_vmstate, reg, st; mvn reg, #LJ_VMST_..st; .endmacro
+|.macro st_vmstate, reg; str reg, [DISPATCH, #DISPATCH_GL(vmstate)]; .endmacro
+|
+|// Move table write barrier back. Overwrites mark and tmp.
+|.macro barrierback, tab, mark, tmp
+|  ldr tmp, [DISPATCH, #DISPATCH_GL(gc.grayagain)]
+|   bic mark, mark, #LJ_GC_BLACK		// black2gray(tab)
+|  str tab, [DISPATCH, #DISPATCH_GL(gc.grayagain)]
+|   strb mark, tab->marked
+|  str tmp, tab->gclist
+|.endmacro
+|
+|.macro .IOS, a, b
+|.if IOS
+|  a, b
+|.endif
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+
+#if !LJ_DUALNUM
+#error "Only dual-number mode supported for ARM target"
+#endif
+
+/* Generate subroutines used by opcodes and other parts of the VM. */
+/* The .code_sub section should be last to help static branch prediction. */
+static void build_subroutines(BuildCtx *ctx)
+{
+  |.code_sub
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Return handling ----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_returnp:
+  |  // See vm_return. Also: RB = previous base.
+  |  tst PC, #FRAME_P
+  |  beq ->cont_dispatch
+  |
+  |  // Return from pcall or xpcall fast func.
+  |  ldr PC, [RB, FRAME_PC]		// Fetch PC of previous frame.
+  |   mvn CARG2, #~LJ_TTRUE
+  |  mov BASE, RB
+  |  // Prepending may overwrite the pcall frame, so do it at the end.
+  |   str CARG2, [RA, FRAME_PC]		// Prepend true to results.
+  |  sub RA, RA, #8
+  |
+  |->vm_returnc:
+  |  adds RC, RC, #8			// RC = (nresults+1)*8.
+  |  mov CRET1, #LUA_YIELD
+  |  beq ->vm_unwind_c_eh
+  |  str RC, SAVE_MULTRES
+  |  ands CARG1, PC, #FRAME_TYPE
+  |  beq ->BC_RET_Z			// Handle regular return to Lua.
+  |
+  |->vm_return:
+  |  // BASE = base, RA = resultptr, RC/MULTRES = (nresults+1)*8, PC = return
+  |  // CARG1 = PC & FRAME_TYPE
+  |  bic RB, PC, #FRAME_TYPEP
+  |   cmp CARG1, #FRAME_C
+  |  sub RB, BASE, RB			// RB = previous base.
+  |   bne ->vm_returnp
+  |
+  |  str RB, L->base
+  |   ldr KBASE, SAVE_NRES
+  |    mv_vmstate CARG4, C
+  |   sub BASE, BASE, #8
+  |  subs CARG3, RC, #8
+  |   lsl KBASE, KBASE, #3		// KBASE = (nresults_wanted+1)*8
+  |    st_vmstate CARG4
+  |  beq >2
+  |1:
+  |  subs CARG3, CARG3, #8
+  |   ldrd CARG12, [RA], #8
+  |   strd CARG12, [BASE], #8
+  |  bne <1
+  |2:
+  |  cmp KBASE, RC			// More/less results wanted?
+  |  bne >6
+  |3:
+  |  str BASE, L->top			// Store new top.
+  |
+  |->vm_leave_cp:
+  |  ldr RC, SAVE_CFRAME		// Restore previous C frame.
+  |   mov CRET1, #0			// Ok return status for vm_pcall.
+  |  str RC, L->cframe
+  |
+  |->vm_leave_unw:
+  |  restoreregs_ret
+  |
+  |6:
+  |  blt >7				// Less results wanted?
+  |  // More results wanted. Check stack size and fill up results with nil.
+  |  ldr CARG3, L->maxstack
+  |   mvn CARG2, #~LJ_TNIL
+  |  cmp BASE, CARG3
+  |  bhs >8
+  |   str CARG2, [BASE, #4]
+  |  add RC, RC, #8
+  |  add BASE, BASE, #8
+  |  b <2
+  |
+  |7:  // Less results wanted.
+  |  sub CARG1, RC, KBASE
+  |  cmp KBASE, #0			// LUA_MULTRET+1 case?
+  |  subne BASE, BASE, CARG1		// Either keep top or shrink it.
+  |  b <3
+  |
+  |8:  // Corner case: need to grow stack for filling up results.
+  |  // This can happen if:
+  |  // - A C function grows the stack (a lot).
+  |  // - The GC shrinks the stack in between.
+  |  // - A return back from a lua_call() with (high) nresults adjustment.
+  |  str BASE, L->top			// Save current top held in BASE (yes).
+  |  lsr CARG2, KBASE, #3
+  |  mov CARG1, L
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  ldr BASE, L->top			// Need the (realloced) L->top in BASE.
+  |  b <2
+  |
+  |->vm_unwind_c:			// Unwind C stack, return from vm_pcall.
+  |  // (void *cframe, int errcode)
+  |  mov sp, CARG1
+  |  mov CRET1, CARG2
+  |->vm_unwind_c_eh:			// Landing pad for external unwinder.
+  |  ldr L, SAVE_L
+  |   mv_vmstate CARG4, C
+  |  ldr GL:CARG3, L->glref
+  |   str CARG4, GL:CARG3->vmstate
+  |  b ->vm_leave_unw
+  |
+  |->vm_unwind_ff:			// Unwind C stack, return from ff pcall.
+  |  // (void *cframe)
+  |  bic CARG1, CARG1, #~CFRAME_RAWMASK	// Use two steps: bic sp is deprecated.
+  |  mov sp, CARG1
+  |->vm_unwind_ff_eh:			// Landing pad for external unwinder.
+  |  ldr L, SAVE_L
+  |   mov MASKR8, #255
+  |    mov RC, #16			// 2 results: false + error message.
+  |   lsl MASKR8, MASKR8, #3		// MASKR8 = 255*8.
+  |  ldr BASE, L->base
+  |   ldr DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |    mvn CARG1, #~LJ_TFALSE
+  |  sub RA, BASE, #8			// Results start at BASE-8.
+  |  ldr PC, [BASE, FRAME_PC]		// Fetch PC of previous frame.
+  |   add DISPATCH, DISPATCH, #GG_G2DISP
+  |   mv_vmstate CARG2, INTERP
+  |    str CARG1, [BASE, #-4]		// Prepend false to error message.
+  |   st_vmstate CARG2
+  |  b ->vm_returnc
+  |
+  |->vm_unwind_ext:			// Complete external unwind.
+#if !LJ_NO_UNWIND
+  |  push {r0, r1, r2, lr}
+  |  bl extern _Unwind_Complete
+  |  ldr r0, [sp]
+  |  bl extern _Unwind_DeleteException
+  |  pop {r0, r1, r2, lr}
+  |  mov r0, r1
+  |  bx r2
+#endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Grow stack for calls -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_growstack_c:			// Grow stack for C function.
+  |  // CARG1 = L
+  |  mov CARG2, #LUA_MINSTACK
+  |  b >2
+  |
+  |->vm_growstack_l:			// Grow stack for Lua function.
+  |  // BASE = new base, RA = BASE+framesize*8, RC = nargs*8, PC = first PC
+  |  add RC, BASE, RC
+  |   sub RA, RA, BASE
+  |    mov CARG1, L
+  |  str BASE, L->base
+  |   add PC, PC, #4			// Must point after first instruction.
+  |  str RC, L->top
+  |   lsr CARG2, RA, #3
+  |2:
+  |  // L->base = new base, L->top = top
+  |  str PC, SAVE_PC
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  ldr BASE, L->base
+  |   ldr RC, L->top
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]
+  |   sub NARGS8:RC, RC, BASE
+  |  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+  |  ins_callt				// Just retry the call.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Entry points into the assembler VM ---------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_resume:				// Setup C frame and resume thread.
+  |  // (lua_State *L, TValue *base, int nres1 = 0, ptrdiff_t ef = 0)
+  |  saveregs
+  |  mov L, CARG1
+  |    ldr DISPATCH, L:CARG1->glref	// Setup pointer to dispatch table.
+  |  mov BASE, CARG2
+  |    add DISPATCH, DISPATCH, #GG_G2DISP
+  |   str L, SAVE_L
+  |  mov PC, #FRAME_CP
+  |   str CARG3, SAVE_NRES
+  |    add CARG2, sp, #CFRAME_RESUME
+  |  ldrb CARG1, L->status
+  |   str CARG3, SAVE_ERRF
+  |   str L, SAVE_PC			// Any value outside of bytecode is ok.
+  |   str CARG3, SAVE_CFRAME
+  |  cmp CARG1, #0
+  |    str CARG2, L->cframe
+  |  beq >3
+  |
+  |  // Resume after yield (like a return).
+  |  str L, [DISPATCH, #DISPATCH_GL(cur_L)]
+  |  mov RA, BASE
+  |   ldr BASE, L->base
+  |   ldr CARG1, L->top
+  |    mov MASKR8, #255
+  |     strb CARG3, L->status
+  |   sub RC, CARG1, BASE
+  |  ldr PC, [BASE, FRAME_PC]
+  |    lsl MASKR8, MASKR8, #3		// MASKR8 = 255*8.
+  |     mv_vmstate CARG2, INTERP
+  |   add RC, RC, #8
+  |  ands CARG1, PC, #FRAME_TYPE
+  |     st_vmstate CARG2
+  |   str RC, SAVE_MULTRES
+  |  beq ->BC_RET_Z
+  |  b ->vm_return
+  |
+  |->vm_pcall:				// Setup protected C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1, ptrdiff_t ef)
+  |  saveregs
+  |  mov PC, #FRAME_CP
+  |  str CARG4, SAVE_ERRF
+  |  b >1
+  |
+  |->vm_call:				// Setup C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1)
+  |  saveregs
+  |  mov PC, #FRAME_C
+  |
+  |1:  // Entry point for vm_pcall above (PC = ftype).
+  |  ldr RC, L:CARG1->cframe
+  |   str CARG3, SAVE_NRES
+  |    mov L, CARG1
+  |   str CARG1, SAVE_L
+  |    ldr DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |     mov BASE, CARG2
+  |   str CARG1, SAVE_PC		// Any value outside of bytecode is ok.
+  |  str RC, SAVE_CFRAME
+  |    add DISPATCH, DISPATCH, #GG_G2DISP
+  |  str sp, L->cframe			// Add our C frame to cframe chain.
+  |
+  |3:  // Entry point for vm_cpcall/vm_resume (BASE = base, PC = ftype).
+  |  str L, [DISPATCH, #DISPATCH_GL(cur_L)]
+  |  ldr RB, L->base			// RB = old base (for vmeta_call).
+  |   ldr CARG1, L->top
+  |    mov MASKR8, #255
+  |  add PC, PC, BASE
+  |    lsl MASKR8, MASKR8, #3		// MASKR8 = 255*8.
+  |  sub PC, PC, RB			// PC = frame delta + frame type
+  |    mv_vmstate CARG2, INTERP
+  |   sub NARGS8:RC, CARG1, BASE
+  |    st_vmstate CARG2
+  |
+  |->vm_call_dispatch:
+  |  // RB = old base, BASE = new base, RC = nargs*8, PC = caller PC
+  |  ldrd CARG34, [BASE, FRAME_FUNC]
+  |  checkfunc CARG4, ->vmeta_call
+  |
+  |->vm_call_dispatch_f:
+  |  ins_call
+  |  // BASE = new base, CARG3 = func, RC = nargs*8, PC = caller PC
+  |
+  |->vm_cpcall:				// Setup protected C frame, call C.
+  |  // (lua_State *L, lua_CFunction func, void *ud, lua_CPFunction cp)
+  |  saveregs
+  |  mov L, CARG1
+  |   ldr RA, L:CARG1->stack
+  |  str CARG1, SAVE_L
+  |    ldr DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |   ldr RB, L->top
+  |  str CARG1, SAVE_PC			// Any value outside of bytecode is ok.
+  |  ldr RC, L->cframe
+  |    add DISPATCH, DISPATCH, #GG_G2DISP
+  |   sub RA, RA, RB			// Compute -savestack(L, L->top).
+  |  mov RB, #0
+  |   str RA, SAVE_NRES			// Neg. delta means cframe w/o frame.
+  |  str RB, SAVE_ERRF			// No error function.
+  |  str RC, SAVE_CFRAME
+  |  str sp, L->cframe			// Add our C frame to cframe chain.
+  |    str L, [DISPATCH, #DISPATCH_GL(cur_L)]
+  |  blx CARG4			// (lua_State *L, lua_CFunction func, void *ud)
+  |  movs BASE, CRET1
+  |   mov PC, #FRAME_CP
+  |  bne <3				// Else continue with the call.
+  |  b ->vm_leave_cp			// No base? Just remove C frame.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Metamethod handling ------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |//-- Continuation dispatch ----------------------------------------------
+  |
+  |->cont_dispatch:
+  |  // BASE = meta base, RA = resultptr, RC = (nresults+1)*8
+  |  ldr LFUNC:CARG3, [RB, FRAME_FUNC]
+  |    ldr CARG1, [BASE, #-16]		// Get continuation.
+  |   mov CARG4, BASE
+  |   mov BASE, RB			// Restore caller BASE.
+  |.if FFI
+  |    cmp CARG1, #1
+  |.endif
+  |   ldr PC, [CARG4, #-12]		// Restore PC from [cont|PC].
+  |    mvn INS, #~LJ_TNIL
+  |    add CARG2, RA, RC
+  |    str INS, [CARG2, #-4]		// Ensure one valid arg.
+  |.if FFI
+  |    bls >1
+  |.endif
+  |  ldr CARG3, LFUNC:CARG3->field_pc
+  |  ldr KBASE, [CARG3, #PC2PROTO(k)]
+  |  // BASE = base, RA = resultptr, CARG4 = meta base
+  |    bx CARG1
+  |
+  |.if FFI
+  |1:
+  |  beq ->cont_ffi_callback		// cont = 1: return from FFI callback.
+  |  // cont = 0: tailcall from C function.
+  |  sub CARG4, CARG4, #16
+  |  sub RC, CARG4, BASE
+  |  b ->vm_call_tail
+  |.endif
+  |
+  |->cont_cat:				// RA = resultptr, CARG4 = meta base
+  |  ldr INS, [PC, #-4]
+  |   sub CARG2, CARG4, #16
+  |   ldrd CARG34, [RA]
+  |     str BASE, L->base
+  |  decode_RB8 RC, INS
+  |   decode_RA8 RA, INS
+  |  add CARG1, BASE, RC
+  |  subs CARG1, CARG2, CARG1
+  |   strdne CARG34, [CARG2]
+  |   movne CARG3, CARG1
+  |  bne ->BC_CAT_Z
+  |   strd CARG34, [BASE, RA]
+  |  b ->cont_nop
+  |
+  |//-- Table indexing metamethods -----------------------------------------
+  |
+  |->vmeta_tgets1:
+  |  add CARG2, BASE, RB
+  |  b >2
+  |
+  |->vmeta_tgets:
+  |  sub CARG2, DISPATCH, #-DISPATCH_GL(tmptv)
+  |   mvn CARG4, #~LJ_TTAB
+  |  str TAB:RB, [CARG2]
+  |   str CARG4, [CARG2, #4]
+  |2:
+  |   mvn CARG4, #~LJ_TSTR
+  |  str STR:RC, TMPDlo
+  |   str CARG4, TMPDhi
+  |  mov CARG3, TMPDp
+  |  b >1
+  |
+  |->vmeta_tgetb:			// RC = index
+  |  decode_RB8 RB, INS
+  |   str RC, TMPDlo
+  |   mvn CARG4, #~LJ_TISNUM
+  |  add CARG2, BASE, RB
+  |   str CARG4, TMPDhi
+  |  mov CARG3, TMPDp
+  |  b >1
+  |
+  |->vmeta_tgetv:
+  |  add CARG2, BASE, RB
+  |   add CARG3, BASE, RC
+  |1:
+  |   str BASE, L->base
+  |  mov CARG1, L
+  |   str PC, SAVE_PC
+  |  bl extern lj_meta_tget		// (lua_State *L, TValue *o, TValue *k)
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  .IOS ldr BASE, L->base
+  |  cmp CRET1, #0
+  |  beq >3
+  |  ldrd CARG34, [CRET1]
+  |   ins_next1
+  |   ins_next2
+  |  strd CARG34, [BASE, RA]
+  |   ins_next3
+  |
+  |3:  // Call __index metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k
+  |   rsb CARG1, BASE, #FRAME_CONT
+  |  ldr BASE, L->top
+  |    mov NARGS8:RC, #16		// 2 args for func(t, k).
+  |    str PC, [BASE, #-12]		// [cont|PC]
+  |   add PC, CARG1, BASE
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]  // Guaranteed to be a function here.
+  |  b ->vm_call_dispatch_f
+  |
+  |->vmeta_tgetr:
+  |  .IOS mov RC, BASE
+  |  bl extern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |  // Returns cTValue * or NULL.
+  |  .IOS mov BASE, RC
+  |  cmp CRET1, #0
+  |  ldrdne CARG12, [CRET1]
+  |  mvneq CARG2, #~LJ_TNIL
+  |  b ->BC_TGETR_Z
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->vmeta_tsets1:
+  |  add CARG2, BASE, RB
+  |  b >2
+  |
+  |->vmeta_tsets:
+  |  sub CARG2, DISPATCH, #-DISPATCH_GL(tmptv)
+  |   mvn CARG4, #~LJ_TTAB
+  |  str TAB:RB, [CARG2]
+  |   str CARG4, [CARG2, #4]
+  |2:
+  |   mvn CARG4, #~LJ_TSTR
+  |  str STR:RC, TMPDlo
+  |   str CARG4, TMPDhi
+  |  mov CARG3, TMPDp
+  |  b >1
+  |
+  |->vmeta_tsetb:			// RC = index
+  |  decode_RB8 RB, INS
+  |   str RC, TMPDlo
+  |   mvn CARG4, #~LJ_TISNUM
+  |  add CARG2, BASE, RB
+  |   str CARG4, TMPDhi
+  |  mov CARG3, TMPDp
+  |  b >1
+  |
+  |->vmeta_tsetv:
+  |  add CARG2, BASE, RB
+  |   add CARG3, BASE, RC
+  |1:
+  |   str BASE, L->base
+  |  mov CARG1, L
+  |   str PC, SAVE_PC
+  |  bl extern lj_meta_tset		// (lua_State *L, TValue *o, TValue *k)
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  .IOS ldr BASE, L->base
+  |  cmp CRET1, #0
+  |   ldrd CARG34, [BASE, RA]
+  |  beq >3
+  |   ins_next1
+  |  // NOBARRIER: lj_meta_tset ensures the table is not black.
+  |  strd CARG34, [CRET1]
+  |   ins_next2
+  |   ins_next3
+  |
+  |3:  // Call __newindex metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k/(v)
+  |   rsb CARG1, BASE, #FRAME_CONT
+  |  ldr BASE, L->top
+  |    mov NARGS8:RC, #24		// 3 args for func(t, k, v).
+  |   strd CARG34, [BASE, #16]		// Copy value to third argument.
+  |    str PC, [BASE, #-12]		// [cont|PC]
+  |   add PC, CARG1, BASE
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]  // Guaranteed to be a function here.
+  |  b ->vm_call_dispatch_f
+  |
+  |->vmeta_tsetr:
+  |  str BASE, L->base
+  |  .IOS mov RC, BASE
+  |  mov CARG1, L
+  |  str PC, SAVE_PC
+  |  bl extern lj_tab_setinth  // (lua_State *L, GCtab *t, int32_t key)
+  |  // Returns TValue *.
+  |  .IOS mov BASE, RC
+  |  b ->BC_TSETR_Z
+  |
+  |//-- Comparison metamethods ---------------------------------------------
+  |
+  |->vmeta_comp:
+  |  mov CARG1, L
+  |   sub PC, PC, #4
+  |  mov CARG2, RA
+  |   str BASE, L->base
+  |  mov CARG3, RC
+  |   str PC, SAVE_PC
+  |  decode_OP CARG4, INS
+  |  bl extern lj_meta_comp  // (lua_State *L, TValue *o1, *o2, int op)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |3:
+  |  .IOS ldr BASE, L->base
+  |  cmp CRET1, #1
+  |  bhi ->vmeta_binop
+  |4:
+  |  ldrh RB, [PC, #2]
+  |   add PC, PC, #4
+  |  add RB, PC, RB, lsl #2
+  |  subhs PC, RB, #0x20000
+  |->cont_nop:
+  |  ins_next
+  |
+  |->cont_ra:				// RA = resultptr
+  |  ldr INS, [PC, #-4]
+  |   ldrd CARG12, [RA]
+  |  decode_RA8 CARG3, INS
+  |   strd CARG12, [BASE, CARG3]
+  |  b ->cont_nop
+  |
+  |->cont_condt:			// RA = resultptr
+  |  ldr CARG2, [RA, #4]
+  |   mvn CARG1, #~LJ_TTRUE
+  |  cmp CARG1, CARG2			// Branch if result is true.
+  |  b <4
+  |
+  |->cont_condf:			// RA = resultptr
+  |  ldr CARG2, [RA, #4]
+  |  checktp CARG2, LJ_TFALSE		// Branch if result is false.
+  |  b <4
+  |
+  |->vmeta_equal:
+  |  // CARG2, CARG3, CARG4 are already set by BC_ISEQV/BC_ISNEV.
+  |  sub PC, PC, #4
+  |   str BASE, L->base
+  |   mov CARG1, L
+  |  str PC, SAVE_PC
+  |  bl extern lj_meta_equal  // (lua_State *L, GCobj *o1, *o2, int ne)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |
+  |->vmeta_equal_cd:
+  |.if FFI
+  |  sub PC, PC, #4
+  |   str BASE, L->base
+  |   mov CARG1, L
+  |   mov CARG2, INS
+  |  str PC, SAVE_PC
+  |  bl extern lj_meta_equal_cd		// (lua_State *L, BCIns op)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |.endif
+  |
+  |->vmeta_istype:
+  |  sub PC, PC, #4
+  |   str BASE, L->base
+  |   mov CARG1, L
+  |   lsr CARG2, RA, #3
+  |   mov CARG3, RC
+  |  str PC, SAVE_PC
+  |  bl extern lj_meta_istype  // (lua_State *L, BCReg ra, BCReg tp)
+  |  .IOS ldr BASE, L->base
+  |  b ->cont_nop
+  |
+  |//-- Arithmetic metamethods ---------------------------------------------
+  |
+  |->vmeta_arith_vn:
+  |  decode_RB8 RB, INS
+  |   decode_RC8 RC, INS
+  |  add CARG3, BASE, RB
+  |   add CARG4, KBASE, RC
+  |  b >1
+  |
+  |->vmeta_arith_nv:
+  |  decode_RB8 RB, INS
+  |   decode_RC8 RC, INS
+  |  add CARG4, BASE, RB
+  |   add CARG3, KBASE, RC
+  |  b >1
+  |
+  |->vmeta_unm:
+  |  ldr INS, [PC, #-8]
+  |   sub PC, PC, #4
+  |  add CARG3, BASE, RC
+  |  add CARG4, BASE, RC
+  |  b >1
+  |
+  |->vmeta_arith_vv:
+  |  decode_RB8 RB, INS
+  |   decode_RC8 RC, INS
+  |  add CARG3, BASE, RB
+  |   add CARG4, BASE, RC
+  |1:
+  |  decode_OP OP, INS
+  |   add CARG2, BASE, RA
+  |    str BASE, L->base
+  |   mov CARG1, L
+  |    str PC, SAVE_PC
+  |  str OP, ARG5
+  |  bl extern lj_meta_arith  // (lua_State *L, TValue *ra,*rb,*rc, BCReg op)
+  |  // Returns NULL (finished) or TValue * (metamethod).
+  |  .IOS ldr BASE, L->base
+  |  cmp CRET1, #0
+  |  beq ->cont_nop
+  |
+  |  // Call metamethod for binary op.
+  |->vmeta_binop:
+  |  // BASE = old base, CRET1 = new base, stack = cont/func/o1/o2
+  |  sub CARG2, CRET1, BASE
+  |   str PC, [CRET1, #-12]		// [cont|PC]
+  |  add PC, CARG2, #FRAME_CONT
+  |   mov BASE, CRET1
+  |    mov NARGS8:RC, #16		// 2 args for func(o1, o2).
+  |  b ->vm_call_dispatch
+  |
+  |->vmeta_len:
+  |  add CARG2, BASE, RC
+  |   str BASE, L->base
+  |  mov CARG1, L
+  |   str PC, SAVE_PC
+  |  bl extern lj_meta_len		// (lua_State *L, TValue *o)
+  |  // Returns NULL (retry) or TValue * (metamethod base).
+  |  .IOS ldr BASE, L->base
+#if LJ_52
+  |  cmp CRET1, #0
+  |  bne ->vmeta_binop			// Binop call for compatibility.
+  |  ldr TAB:CARG1, [BASE, RC]
+  |  b ->BC_LEN_Z
+#else
+  |  b ->vmeta_binop			// Binop call for compatibility.
+#endif
+  |
+  |//-- Call metamethod ----------------------------------------------------
+  |
+  |->vmeta_call:			// Resolve and call __call metamethod.
+  |  // RB = old base, BASE = new base, RC = nargs*8
+  |  mov CARG1, L
+  |   str RB, L->base			// This is the callers base!
+  |  sub CARG2, BASE, #8
+  |   str PC, SAVE_PC
+  |  add CARG3, BASE, NARGS8:RC
+  |  .IOS mov RA, BASE
+  |  bl extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |  .IOS mov BASE, RA
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]  // Guaranteed to be a function here.
+  |   add NARGS8:RC, NARGS8:RC, #8	// Got one more argument now.
+  |  ins_call
+  |
+  |->vmeta_callt:			// Resolve __call for BC_CALLT.
+  |  // BASE = old base, RA = new base, RC = nargs*8
+  |  mov CARG1, L
+  |   str BASE, L->base
+  |  sub CARG2, RA, #8
+  |   str PC, SAVE_PC
+  |  add CARG3, RA, NARGS8:RC
+  |  bl extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |  .IOS ldr BASE, L->base
+  |  ldr LFUNC:CARG3, [RA, FRAME_FUNC]  // Guaranteed to be a function here.
+  |   ldr PC, [BASE, FRAME_PC]
+  |    add NARGS8:RC, NARGS8:RC, #8	// Got one more argument now.
+  |  b ->BC_CALLT2_Z
+  |
+  |//-- Argument coercion for 'for' statement ------------------------------
+  |
+  |->vmeta_for:
+  |  mov CARG1, L
+  |   str BASE, L->base
+  |  mov CARG2, RA
+  |   str PC, SAVE_PC
+  |  bl extern lj_meta_for	// (lua_State *L, TValue *base)
+  |  .IOS ldr BASE, L->base
+  |.if JIT
+  |   ldrb OP, [PC, #-4]
+  |.endif
+  |  ldr INS, [PC, #-4]
+  |.if JIT
+  |   cmp OP, #BC_JFORI
+  |.endif
+  |  decode_RA8 RA, INS
+  |  decode_RD RC, INS
+  |.if JIT
+  |   beq =>BC_JFORI
+  |.endif
+  |  b =>BC_FORI
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Fast functions -----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro .ffunc, name
+  |->ff_ .. name:
+  |.endmacro
+  |
+  |.macro .ffunc_1, name
+  |->ff_ .. name:
+  |  ldrd CARG12, [BASE]
+  |   cmp NARGS8:RC, #8
+  |   blo ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_2, name
+  |->ff_ .. name:
+  |  ldrd CARG12, [BASE]
+  |   ldrd CARG34, [BASE, #8]
+  |    cmp NARGS8:RC, #16
+  |    blo ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_n, name
+  |  .ffunc_1 name
+  |  checktp CARG2, LJ_TISNUM
+  |  bhs ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_nn, name
+  |  .ffunc_2 name
+  |  checktp CARG2, LJ_TISNUM
+  |  cmnlo CARG4, #-LJ_TISNUM
+  |  bhs ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_d, name
+  |  .ffunc name
+  |  ldr CARG2, [BASE, #4]
+  |   cmp NARGS8:RC, #8
+  |  vldr d0, [BASE]
+  |   blo ->fff_fallback
+  |  checktp CARG2, LJ_TISNUM
+  |  bhs ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_dd, name
+  |  .ffunc name
+  |  ldr CARG2, [BASE, #4]
+  |  ldr CARG4, [BASE, #12]
+  |   cmp NARGS8:RC, #16
+  |  vldr d0, [BASE]
+  |  vldr d1, [BASE, #8]
+  |   blo ->fff_fallback
+  |  checktp CARG2, LJ_TISNUM
+  |  cmnlo CARG4, #-LJ_TISNUM
+  |  bhs ->fff_fallback
+  |.endmacro
+  |
+  |// Inlined GC threshold check. Caveat: uses CARG1 and CARG2.
+  |.macro ffgccheck
+  |  ldr CARG1, [DISPATCH, #DISPATCH_GL(gc.total)]
+  |  ldr CARG2, [DISPATCH, #DISPATCH_GL(gc.threshold)]
+  |  cmp CARG1, CARG2
+  |  blge ->fff_gcstep
+  |.endmacro
+  |
+  |//-- Base library: checks -----------------------------------------------
+  |
+  |.ffunc_1 assert
+  |  checktp CARG2, LJ_TTRUE
+  |  bhi ->fff_fallback
+  |   ldr PC, [BASE, FRAME_PC]
+  |  strd CARG12, [BASE, #-8]
+  |  mov RB, BASE
+  |  subs RA, NARGS8:RC, #8
+  |   add RC, NARGS8:RC, #8		// Compute (nresults+1)*8.
+  |  beq ->fff_res			// Done if exactly 1 argument.
+  |1:
+  |   ldrd CARG12, [RB, #8]
+  |  subs RA, RA, #8
+  |   strd CARG12, [RB], #8
+  |  bne <1
+  |  b ->fff_res
+  |
+  |.ffunc type
+  |  ldr CARG2, [BASE, #4]
+  |   cmp NARGS8:RC, #8
+  |   blo ->fff_fallback
+  |  checktp CARG2, LJ_TISNUM
+  |  mvnlo CARG2, #~LJ_TISNUM
+  |  rsb CARG4, CARG2, #(int)(offsetof(GCfuncC, upvalue)>>3)-1
+  |  lsl CARG4, CARG4, #3
+  |  ldrd CARG12, [CFUNC:CARG3, CARG4]
+  |  b ->fff_restv
+  |
+  |//-- Base library: getters and setters ---------------------------------
+  |
+  |.ffunc_1 getmetatable
+  |  checktp CARG2, LJ_TTAB
+  |  cmnne CARG2, #-LJ_TUDATA
+  |  bne >6
+  |1:  // Field metatable must be at same offset for GCtab and GCudata!
+  |  ldr TAB:RB, TAB:CARG1->metatable
+  |2:
+  |   mvn CARG2, #~LJ_TNIL
+  |   ldr STR:RC, [DISPATCH, #DISPATCH_GL(gcroot[GCROOT_MMNAME+MM_metatable])]
+  |  cmp TAB:RB, #0
+  |  beq ->fff_restv
+  |  ldr CARG3, TAB:RB->hmask
+  |   ldr CARG4, STR:RC->sid
+  |    ldr NODE:INS, TAB:RB->node
+  |  and CARG3, CARG3, CARG4		// idx = str->sid & tab->hmask
+  |  add CARG3, CARG3, CARG3, lsl #1
+  |    add NODE:INS, NODE:INS, CARG3, lsl #3	// node = tab->node + idx*3*8
+  |3:  // Rearranged logic, because we expect _not_ to find the key.
+  |  ldrd CARG34, NODE:INS->key  // STALL: early NODE:INS.
+  |   ldrd CARG12, NODE:INS->val
+  |    ldr NODE:INS, NODE:INS->next
+  |  checktp CARG4, LJ_TSTR
+  |  cmpeq CARG3, STR:RC
+  |  beq >5
+  |  cmp NODE:INS, #0
+  |  bne <3
+  |4:
+  |  mov CARG1, RB			// Use metatable as default result.
+  |  mvn CARG2, #~LJ_TTAB
+  |  b ->fff_restv
+  |5:
+  |  checktp CARG2, LJ_TNIL
+  |  bne ->fff_restv
+  |  b <4
+  |
+  |6:
+  |  checktp CARG2, LJ_TISNUM
+  |  mvnhs CARG2, CARG2
+  |  movlo CARG2, #~LJ_TISNUM
+  |  add CARG4, DISPATCH, CARG2, lsl #2
+  |  ldr TAB:RB, [CARG4, #DISPATCH_GL(gcroot[GCROOT_BASEMT])]
+  |  b <2
+  |
+  |.ffunc_2 setmetatable
+  |  // Fast path: no mt for table yet and not clearing the mt.
+  |  checktp CARG2, LJ_TTAB
+  |   ldreq TAB:RB, TAB:CARG1->metatable
+  |  checktpeq CARG4, LJ_TTAB
+  |    ldrbeq CARG4, TAB:CARG1->marked
+  |   cmpeq TAB:RB, #0
+  |  bne ->fff_fallback
+  |    tst CARG4, #LJ_GC_BLACK		// isblack(table)
+  |     str TAB:CARG3, TAB:CARG1->metatable
+  |    beq ->fff_restv
+  |  barrierback TAB:CARG1, CARG4, CARG3
+  |  b ->fff_restv
+  |
+  |.ffunc rawget
+  |  ldrd CARG34, [BASE]
+  |   cmp NARGS8:RC, #16
+  |   blo ->fff_fallback
+  |   mov CARG2, CARG3
+  |  checktab CARG4, ->fff_fallback
+  |   mov CARG1, L
+  |   add CARG3, BASE, #8
+  |  .IOS mov RA, BASE
+  |  bl extern lj_tab_get  // (lua_State *L, GCtab *t, cTValue *key)
+  |  // Returns cTValue *.
+  |  .IOS mov BASE, RA
+  |  ldrd CARG12, [CRET1]
+  |  b ->fff_restv
+  |
+  |//-- Base library: conversions ------------------------------------------
+  |
+  |.ffunc tonumber
+  |  // Only handles the number case inline (without a base argument).
+  |  ldrd CARG12, [BASE]
+  |   cmp NARGS8:RC, #8
+  |   bne ->fff_fallback
+  |  checktp CARG2, LJ_TISNUM
+  |  bls ->fff_restv
+  |  b ->fff_fallback
+  |
+  |.ffunc_1 tostring
+  |  // Only handles the string or number case inline.
+  |  checktp CARG2, LJ_TSTR
+  |  // A __tostring method in the string base metatable is ignored.
+  |  beq ->fff_restv
+  |  // Handle numbers inline, unless a number base metatable is present.
+  |  ldr CARG4, [DISPATCH, #DISPATCH_GL(gcroot[GCROOT_BASEMT_NUM])]
+  |   str BASE, L->base
+  |  checktp CARG2, LJ_TISNUM
+  |  cmpls CARG4, #0
+  |   str PC, SAVE_PC			// Redundant (but a defined value).
+  |  bhi ->fff_fallback
+  |  ffgccheck
+  |  mov CARG1, L
+  |  mov CARG2, BASE
+  |  bl extern lj_strfmt_number		// (lua_State *L, cTValue *o)
+  |  // Returns GCstr *.
+  |  ldr BASE, L->base
+  |  mvn CARG2, #~LJ_TSTR
+  |  b ->fff_restv
+  |
+  |//-- Base library: iterators -------------------------------------------
+  |
+  |.ffunc_1 next
+  |   mvn CARG4, #~LJ_TNIL
+  |  checktab CARG2, ->fff_fallback
+  |   strd CARG34, [BASE, NARGS8:RC]	// Set missing 2nd arg to nil.
+  |   ldr PC, [BASE, FRAME_PC]
+  |  add CARG2, BASE, #8
+  |  sub CARG3, BASE, #8
+  |  bl extern lj_tab_next		// (GCtab *t, cTValue *key, TValue *o)
+  |  // Returns 1=found, 0=end, -1=error.
+  |  .IOS ldr BASE, L->base
+  |  cmp CRET1, #0
+  |   mov RC, #(2+1)*8
+  |  bgt ->fff_res			// Found key/value.
+  |  bmi ->fff_fallback			// Invalid key.
+  |  // End of traversal: return nil.
+  |  mvn CRET2, #~LJ_TNIL
+  |  b ->fff_restv
+  |
+  |.ffunc_1 pairs
+  |  checktab CARG2, ->fff_fallback
+#if LJ_52
+  |  ldr TAB:RB, TAB:CARG1->metatable
+#endif
+  |   ldrd CFUNC:CARG34, CFUNC:CARG3->upvalue[0]
+  |    ldr PC, [BASE, FRAME_PC]
+#if LJ_52
+  |  cmp TAB:RB, #0
+  |  bne ->fff_fallback
+#endif
+  |  mvn CARG2, #~LJ_TNIL
+  |    mov RC, #(3+1)*8
+  |   strd CFUNC:CARG34, [BASE, #-8]
+  |  str CARG2, [BASE, #12]
+  |  b ->fff_res
+  |
+  |.ffunc_2 ipairs_aux
+  |  checktp CARG2, LJ_TTAB
+  |  checktpeq CARG4, LJ_TISNUM
+  |  bne ->fff_fallback
+  |  ldr RB, TAB:CARG1->asize
+  |   ldr RC, TAB:CARG1->array
+  |  add CARG3, CARG3, #1
+  |    ldr PC, [BASE, FRAME_PC]
+  |  cmp CARG3, RB
+  |   add RC, RC, CARG3, lsl #3
+  |  strd CARG34, [BASE, #-8]
+  |   ldrdlo CARG12, [RC]
+  |   mov RC, #(0+1)*8
+  |  bhs >2				// Not in array part?
+  |1:
+  |   checktp CARG2, LJ_TNIL
+  |   movne RC, #(2+1)*8
+  |   strdne CARG12, [BASE]
+  |  b ->fff_res
+  |2:  // Check for empty hash part first. Otherwise call C function.
+  |  ldr RB, TAB:CARG1->hmask
+  |   mov CARG2, CARG3
+  |  cmp RB, #0
+  |  beq ->fff_res
+  |  .IOS mov RA, BASE
+  |  bl extern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |  // Returns cTValue * or NULL.
+  |  .IOS mov BASE, RA
+  |  cmp CRET1, #0
+  |  beq ->fff_res
+  |  ldrd CARG12, [CRET1]
+  |  b <1
+  |
+  |.ffunc_1 ipairs
+  |  checktab CARG2, ->fff_fallback
+#if LJ_52
+  |  ldr TAB:RB, TAB:CARG1->metatable
+#endif
+  |   ldrd CFUNC:CARG34, CFUNC:CARG3->upvalue[0]
+  |    ldr PC, [BASE, FRAME_PC]
+#if LJ_52
+  |  cmp TAB:RB, #0
+  |  bne ->fff_fallback
+#endif
+  |  mov CARG1, #0
+  |  mvn CARG2, #~LJ_TISNUM
+  |    mov RC, #(3+1)*8
+  |   strd CFUNC:CARG34, [BASE, #-8]
+  |  strd CARG12, [BASE, #8]
+  |  b ->fff_res
+  |
+  |//-- Base library: catch errors ----------------------------------------
+  |
+  |.ffunc pcall
+  |  ldrb RA, [DISPATCH, #DISPATCH_GL(hookmask)]
+  |   cmp NARGS8:RC, #8
+  |   blo ->fff_fallback
+  |  tst RA, #HOOK_ACTIVE		// Remember active hook before pcall.
+  |   mov RB, BASE
+  |   add BASE, BASE, #8
+  |  moveq PC, #8+FRAME_PCALL
+  |  movne PC, #8+FRAME_PCALLH
+  |   sub NARGS8:RC, NARGS8:RC, #8
+  |  b ->vm_call_dispatch
+  |
+  |.ffunc_2 xpcall
+  |  ldrb RA, [DISPATCH, #DISPATCH_GL(hookmask)]
+  |  checkfunc CARG4, ->fff_fallback	// Traceback must be a function.
+  |   mov RB, BASE
+  |  strd CARG12, [BASE, #8]		// Swap function and traceback.
+  |   strd CARG34, [BASE]
+  |  tst RA, #HOOK_ACTIVE		// Remember active hook before pcall.
+  |   add BASE, BASE, #16
+  |  moveq PC, #16+FRAME_PCALL
+  |  movne PC, #16+FRAME_PCALLH
+  |   sub NARGS8:RC, NARGS8:RC, #16
+  |  b ->vm_call_dispatch
+  |
+  |//-- Coroutine library --------------------------------------------------
+  |
+  |.macro coroutine_resume_wrap, resume
+  |.if resume
+  |.ffunc_1 coroutine_resume
+  |  checktp CARG2, LJ_TTHREAD
+  |  bne ->fff_fallback
+  |.else
+  |.ffunc coroutine_wrap_aux
+  |  ldr L:CARG1, CFUNC:CARG3->upvalue[0].gcr
+  |.endif
+  |   ldr PC, [BASE, FRAME_PC]
+  |     str BASE, L->base
+  |  ldr CARG2, L:CARG1->top
+  |   ldrb RA, L:CARG1->status
+  |    ldr RB, L:CARG1->base
+  |  add CARG3, CARG2, NARGS8:RC
+  |  add CARG4, CARG2, RA
+  |   str PC, SAVE_PC
+  |  cmp CARG4, RB
+  |  beq ->fff_fallback
+  |   ldr CARG4, L:CARG1->maxstack
+  |    ldr RB, L:CARG1->cframe
+  |   cmp RA, #LUA_YIELD
+  |   cmpls CARG3, CARG4
+  |    cmpls RB, #0
+  |    bhi ->fff_fallback
+  |1:
+  |.if resume
+  |  sub CARG3, CARG3, #8		// Keep resumed thread in stack for GC.
+  |  add BASE, BASE, #8
+  |  sub NARGS8:RC, NARGS8:RC, #8
+  |.endif
+  |  str CARG3, L:CARG1->top
+  |  str BASE, L->top
+  |2:  // Move args to coroutine.
+  |   ldrd CARG34, [BASE, RB]
+  |  cmp RB, NARGS8:RC
+  |   strdne CARG34, [CARG2, RB]
+  |  add RB, RB, #8
+  |  bne <2
+  |
+  |  mov CARG3, #0
+  |   mov L:RA, L:CARG1
+  |  mov CARG4, #0
+  |  bl ->vm_resume			// (lua_State *L, TValue *base, 0, 0)
+  |  // Returns thread status.
+  |4:
+  |  ldr CARG3, L:RA->base
+  |    mv_vmstate CARG2, INTERP
+  |  ldr CARG4, L:RA->top
+  |   cmp CRET1, #LUA_YIELD
+  |  ldr BASE, L->base
+  |    str L, [DISPATCH, #DISPATCH_GL(cur_L)]
+  |    st_vmstate CARG2
+  |   bhi >8
+  |  subs RC, CARG4, CARG3
+  |   ldr CARG1, L->maxstack
+  |   add CARG2, BASE, RC
+  |  beq >6				// No results?
+  |  cmp CARG2, CARG1
+  |   mov RB, #0
+  |  bhi >9				// Need to grow stack?
+  |
+  |  sub CARG4, RC, #8
+  |   str CARG3, L:RA->top		// Clear coroutine stack.
+  |5:  // Move results from coroutine.
+  |   ldrd CARG12, [CARG3, RB]
+  |  cmp RB, CARG4
+  |   strd CARG12, [BASE, RB]
+  |  add RB, RB, #8
+  |  bne <5
+  |6:
+  |.if resume
+  |  mvn CARG3, #~LJ_TTRUE
+  |   add RC, RC, #16
+  |7:
+  |  str CARG3, [BASE, #-4]		// Prepend true/false to results.
+  |   sub RA, BASE, #8
+  |.else
+  |   mov RA, BASE
+  |   add RC, RC, #8
+  |.endif
+  |  ands CARG1, PC, #FRAME_TYPE
+  |   str PC, SAVE_PC
+  |   str RC, SAVE_MULTRES
+  |  beq ->BC_RET_Z
+  |  b ->vm_return
+  |
+  |8:  // Coroutine returned with error (at co->top-1).
+  |.if resume
+  |  ldrd CARG12, [CARG4, #-8]!
+  |   mvn CARG3, #~LJ_TFALSE
+  |    mov RC, #(2+1)*8
+  |  str CARG4, L:RA->top		// Remove error from coroutine stack.
+  |  strd CARG12, [BASE]		// Copy error message.
+  |  b <7
+  |.else
+  |  mov CARG1, L
+  |  mov CARG2, L:RA
+  |  bl extern lj_ffh_coroutine_wrap_err  // (lua_State *L, lua_State *co)
+  |  // Never returns.
+  |.endif
+  |
+  |9:  // Handle stack expansion on return from yield.
+  |  mov CARG1, L
+  |  lsr CARG2, RC, #3
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  mov CRET1, #0
+  |  b <4
+  |.endmacro
+  |
+  |  coroutine_resume_wrap 1		// coroutine.resume
+  |  coroutine_resume_wrap 0		// coroutine.wrap
+  |
+  |.ffunc coroutine_yield
+  |  ldr CARG1, L->cframe
+  |   add CARG2, BASE, NARGS8:RC
+  |   str BASE, L->base
+  |  tst CARG1, #CFRAME_RESUME
+  |   str CARG2, L->top
+  |    mov CRET1, #LUA_YIELD
+  |   mov CARG3, #0
+  |  beq ->fff_fallback
+  |   str CARG3, L->cframe
+  |    strb CRET1, L->status
+  |  b ->vm_leave_unw
+  |
+  |//-- Math library -------------------------------------------------------
+  |
+  |.macro math_round, func
+  |  .ffunc_1 math_ .. func
+  |  checktp CARG2, LJ_TISNUM
+  |  beq ->fff_restv
+  |  bhi ->fff_fallback
+  |  // Round FP value and normalize result.
+  |  lsl CARG3, CARG2, #1
+  |  adds RB, CARG3, #0x00200000
+  |  bpl >2				// |x| < 1?
+  |  mvn CARG4, #0x3e0
+  |    subs RB, CARG4, RB, asr #21
+  |  lsl CARG4, CARG2, #11
+  |   lsl CARG3, CARG1, #11
+  |  orr CARG4, CARG4, #0x80000000
+  |   rsb INS, RB, #32
+  |  orr CARG4, CARG4, CARG1, lsr #21
+  |    bls >3				// |x| >= 2^31?
+  |   orr CARG3, CARG3, CARG4, lsl INS
+  |  lsr CARG1, CARG4, RB
+  |.if "func" == "floor"
+  |   tst CARG3, CARG2, asr #31
+  |   addne CARG1, CARG1, #1
+  |.else
+  |   bics CARG3, CARG3, CARG2, asr #31
+  |   addsne CARG1, CARG1, #1
+  |   ldrdvs CARG12, >9
+  |   bvs ->fff_restv
+  |.endif
+  |    cmp CARG2, #0
+  |    rsblt CARG1, CARG1, #0
+  |1:
+  |   mvn CARG2, #~LJ_TISNUM
+  |  b ->fff_restv
+  |
+  |2:  // |x| < 1
+  |  bcs ->fff_restv			// |x| is not finite.
+  |  orr CARG3, CARG3, CARG1		// ztest = abs(hi) | lo
+  |.if "func" == "floor"
+  |  tst CARG3, CARG2, asr #31		// return (ztest & sign) == 0 ? 0 : -1
+  |  moveq CARG1, #0
+  |  mvnne CARG1, #0
+  |.else
+  |  bics CARG3, CARG3, CARG2, asr #31	// return (ztest & ~sign) == 0 ? 0 : 1
+  |  moveq CARG1, #0
+  |  movne CARG1, #1
+  |.endif
+  |  mvn CARG2, #~LJ_TISNUM
+  |  b ->fff_restv
+  |
+  |3:  // |x| >= 2^31. Check for x == -(2^31).
+  |  cmpeq CARG4, #0x80000000
+  |.if "func" == "floor"
+  |  cmpeq CARG3, #0
+  |.endif
+  |  bne >4
+  |  cmp CARG2, #0
+  |  movmi CARG1, #0x80000000
+  |  bmi <1
+  |4:
+  |  bl ->vm_..func.._sf
+  |  b ->fff_restv
+  |.endmacro
+  |
+  |  math_round floor
+  |  math_round ceil
+  |
+  |.align 8
+  |9:
+  |  .long 0x00000000, 0x41e00000	// 2^31.
+  |
+  |.ffunc_1 math_abs
+  |  checktp CARG2, LJ_TISNUM
+  |  bhi ->fff_fallback
+  |  bicne CARG2, CARG2, #0x80000000
+  |  bne ->fff_restv
+  |  cmp CARG1, #0
+  |  rsbslt CARG1, CARG1, #0
+  |  ldrdvs CARG12, <9
+  |  // Fallthrough.
+  |
+  |->fff_restv:
+  |  // CARG12 = TValue result.
+  |  ldr PC, [BASE, FRAME_PC]
+  |  strd CARG12, [BASE, #-8]
+  |->fff_res1:
+  |  // PC = return.
+  |  mov RC, #(1+1)*8
+  |->fff_res:
+  |  // RC = (nresults+1)*8, PC = return.
+  |  ands CARG1, PC, #FRAME_TYPE
+  |  ldreq INS, [PC, #-4]
+  |   str RC, SAVE_MULTRES
+  |  sub RA, BASE, #8
+  |  bne ->vm_return
+  |  decode_RB8 RB, INS
+  |5:
+  |  cmp RB, RC				// More results expected?
+  |  bhi >6
+  |  decode_RA8 CARG1, INS
+  |   ins_next1
+  |   ins_next2
+  |  // Adjust BASE. KBASE is assumed to be set for the calling frame.
+  |  sub BASE, RA, CARG1
+  |   ins_next3
+  |
+  |6:  // Fill up results with nil.
+  |  add CARG2, RA, RC
+  |  mvn CARG1, #~LJ_TNIL
+  |   add RC, RC, #8
+  |  str CARG1, [CARG2, #-4]
+  |  b <5
+  |
+  |.macro math_extern, func
+  |.if HFABI
+  |  .ffunc_d math_ .. func
+  |.else
+  |  .ffunc_n math_ .. func
+  |.endif
+  |  .IOS mov RA, BASE
+  |  bl extern func
+  |  .IOS mov BASE, RA
+  |.if HFABI
+  |  b ->fff_resd
+  |.else
+  |  b ->fff_restv
+  |.endif
+  |.endmacro
+  |
+  |.macro math_extern2, func
+  |.if HFABI
+  |  .ffunc_dd math_ .. func
+  |.else
+  |  .ffunc_nn math_ .. func
+  |.endif
+  |  .IOS mov RA, BASE
+  |  bl extern func
+  |  .IOS mov BASE, RA
+  |.if HFABI
+  |  b ->fff_resd
+  |.else
+  |  b ->fff_restv
+  |.endif
+  |.endmacro
+  |
+  |.if FPU
+  |  .ffunc_d math_sqrt
+  |  vsqrt.f64 d0, d0
+  |->fff_resd:
+  |  ldr PC, [BASE, FRAME_PC]
+  |  vstr d0, [BASE, #-8]
+  |  b ->fff_res1
+  |.else
+  |  math_extern sqrt
+  |.endif
+  |
+  |.ffunc math_log
+  |.if HFABI
+  |  ldr CARG2, [BASE, #4]
+  |   cmp NARGS8:RC, #8			// Need exactly 1 argument.
+  |  vldr d0, [BASE]
+  |   bne ->fff_fallback
+  |.else
+  |  ldrd CARG12, [BASE]
+  |   cmp NARGS8:RC, #8			// Need exactly 1 argument.
+  |   bne ->fff_fallback
+  |.endif
+  |  checktp CARG2, LJ_TISNUM
+  |  bhs ->fff_fallback
+  |  .IOS mov RA, BASE
+  |  bl extern log
+  |  .IOS mov BASE, RA
+  |.if HFABI
+  |  b ->fff_resd
+  |.else
+  |  b ->fff_restv
+  |.endif
+  |
+  |  math_extern log10
+  |  math_extern exp
+  |  math_extern sin
+  |  math_extern cos
+  |  math_extern tan
+  |  math_extern asin
+  |  math_extern acos
+  |  math_extern atan
+  |  math_extern sinh
+  |  math_extern cosh
+  |  math_extern tanh
+  |  math_extern2 pow
+  |  math_extern2 atan2
+  |  math_extern2 fmod
+  |
+  |.if HFABI
+  |  .ffunc math_ldexp
+  |  ldr CARG4, [BASE, #4]
+  |  ldrd CARG12, [BASE, #8]
+  |   cmp NARGS8:RC, #16
+  |   blo ->fff_fallback
+  |  vldr d0, [BASE]
+  |  checktp CARG4, LJ_TISNUM
+  |  bhs ->fff_fallback
+  |  checktp CARG2, LJ_TISNUM
+  |  bne ->fff_fallback
+  |  .IOS mov RA, BASE
+  |  bl extern ldexp			// (double x, int exp)
+  |  .IOS mov BASE, RA
+  |  b ->fff_resd
+  |.else
+  |.ffunc_2 math_ldexp
+  |  checktp CARG2, LJ_TISNUM
+  |  bhs ->fff_fallback
+  |  checktp CARG4, LJ_TISNUM
+  |  bne ->fff_fallback
+  |  .IOS mov RA, BASE
+  |  bl extern ldexp			// (double x, int exp)
+  |  .IOS mov BASE, RA
+  |  b ->fff_restv
+  |.endif
+  |
+  |.if HFABI
+  |.ffunc_d math_frexp
+  |  mov CARG1, sp
+  |  .IOS mov RA, BASE
+  |  bl extern frexp
+  |  .IOS mov BASE, RA
+  |   ldr CARG3, [sp]
+  |   mvn CARG4, #~LJ_TISNUM
+  |    ldr PC, [BASE, FRAME_PC]
+  |  vstr d0, [BASE, #-8]
+  |    mov RC, #(2+1)*8
+  |   strd CARG34, [BASE]
+  |  b ->fff_res
+  |.else
+  |.ffunc_n math_frexp
+  |  mov CARG3, sp
+  |  .IOS mov RA, BASE
+  |  bl extern frexp
+  |  .IOS mov BASE, RA
+  |   ldr CARG3, [sp]
+  |   mvn CARG4, #~LJ_TISNUM
+  |    ldr PC, [BASE, FRAME_PC]
+  |  strd CARG12, [BASE, #-8]
+  |    mov RC, #(2+1)*8
+  |   strd CARG34, [BASE]
+  |  b ->fff_res
+  |.endif
+  |
+  |.if HFABI
+  |.ffunc_d math_modf
+  |  sub CARG1, BASE, #8
+  |   ldr PC, [BASE, FRAME_PC]
+  |  .IOS mov RA, BASE
+  |  bl extern modf
+  |  .IOS mov BASE, RA
+  |   mov RC, #(2+1)*8
+  |  vstr d0, [BASE]
+  |  b ->fff_res
+  |.else
+  |.ffunc_n math_modf
+  |  sub CARG3, BASE, #8
+  |   ldr PC, [BASE, FRAME_PC]
+  |  .IOS mov RA, BASE
+  |  bl extern modf
+  |  .IOS mov BASE, RA
+  |   mov RC, #(2+1)*8
+  |  strd CARG12, [BASE]
+  |  b ->fff_res
+  |.endif
+  |
+  |.macro math_minmax, name, cond, fcond
+  |.if FPU
+  |  .ffunc_1 name
+  |   add RB, BASE, RC
+  |  checktp CARG2, LJ_TISNUM
+  |   add RA, BASE, #8
+  |  bne >4
+  |1:  // Handle integers.
+  |  ldrd CARG34, [RA]
+  |   cmp RA, RB
+  |   bhs ->fff_restv
+  |  checktp CARG4, LJ_TISNUM
+  |  bne >3
+  |  cmp CARG1, CARG3
+  |   add RA, RA, #8
+  |  mov..cond CARG1, CARG3
+  |  b <1
+  |3:  // Convert intermediate result to number and continue below.
+  |  vmov s4, CARG1
+  |  bhi ->fff_fallback
+  |  vldr d1, [RA]
+  |  vcvt.f64.s32 d0, s4
+  |  b >6
+  |
+  |4:
+  |  vldr d0, [BASE]
+  |  bhi ->fff_fallback
+  |5:  // Handle numbers.
+  |  ldrd CARG34, [RA]
+  |  vldr d1, [RA]
+  |   cmp RA, RB
+  |   bhs ->fff_resd
+  |  checktp CARG4, LJ_TISNUM
+  |  bhs >7
+  |6:
+  |  vcmp.f64 d0, d1
+  |  vmrs
+  |   add RA, RA, #8
+  |  vmov..fcond.f64 d0, d1
+  |  b <5
+  |7:  // Convert integer to number and continue above.
+  |  vmov s4, CARG3
+  |  bhi ->fff_fallback
+  |  vcvt.f64.s32 d1, s4
+  |  b <6
+  |
+  |.else
+  |
+  |  .ffunc_1 name
+  |  checktp CARG2, LJ_TISNUM
+  |   mov RA, #8
+  |  bne >4
+  |1:  // Handle integers.
+  |  ldrd CARG34, [BASE, RA]
+  |   cmp RA, RC
+  |   bhs ->fff_restv
+  |  checktp CARG4, LJ_TISNUM
+  |  bne >3
+  |  cmp CARG1, CARG3
+  |   add RA, RA, #8
+  |  mov..cond CARG1, CARG3
+  |  b <1
+  |3:  // Convert intermediate result to number and continue below.
+  |  bhi ->fff_fallback
+  |  bl extern __aeabi_i2d
+  |  ldrd CARG34, [BASE, RA]
+  |  b >6
+  |
+  |4:
+  |  bhi ->fff_fallback
+  |5:  // Handle numbers.
+  |  ldrd CARG34, [BASE, RA]
+  |   cmp RA, RC
+  |   bhs ->fff_restv
+  |  checktp CARG4, LJ_TISNUM
+  |  bhs >7
+  |6:
+  |  bl extern __aeabi_cdcmple
+  |   add RA, RA, #8
+  |  mov..fcond CARG1, CARG3
+  |  mov..fcond CARG2, CARG4
+  |  b <5
+  |7:  // Convert integer to number and continue above.
+  |  bhi ->fff_fallback
+  |  strd CARG12, TMPD
+  |  mov CARG1, CARG3
+  |  bl extern __aeabi_i2d
+  |  ldrd CARG34, TMPD
+  |  b <6
+  |.endif
+  |.endmacro
+  |
+  |  math_minmax math_min, gt, pl
+  |  math_minmax math_max, lt, le
+  |
+  |//-- String library -----------------------------------------------------
+  |
+  |.ffunc string_byte			// Only handle the 1-arg case here.
+  |  ldrd CARG12, [BASE]
+  |    ldr PC, [BASE, FRAME_PC]
+  |   cmp NARGS8:RC, #8
+  |   checktpeq CARG2, LJ_TSTR		// Need exactly 1 argument.
+  |   bne ->fff_fallback
+  |  ldr CARG3, STR:CARG1->len
+  |   ldrb CARG1, STR:CARG1[1]		// Access is always ok (NUL at end).
+  |   mvn CARG2, #~LJ_TISNUM
+  |  cmp CARG3, #0
+  |  moveq RC, #(0+1)*8
+  |  movne RC, #(1+1)*8
+  |   strd CARG12, [BASE, #-8]
+  |  b ->fff_res
+  |
+  |.ffunc string_char			// Only handle the 1-arg case here.
+  |  ffgccheck
+  |  ldrd CARG12, [BASE]
+  |    ldr PC, [BASE, FRAME_PC]
+  |   cmp NARGS8:RC, #8			// Need exactly 1 argument.
+  |   checktpeq CARG2, LJ_TISNUM
+  |   bicseq CARG4, CARG1, #255
+  |  mov CARG3, #1
+  |   bne ->fff_fallback
+  |  str CARG1, TMPD
+  |  mov CARG2, TMPDp			// Points to stack. Little-endian.
+  |->fff_newstr:
+  |  // CARG2 = str, CARG3 = len.
+  |   str BASE, L->base
+  |  mov CARG1, L
+  |   str PC, SAVE_PC
+  |  bl extern lj_str_new		// (lua_State *L, char *str, size_t l)
+  |->fff_resstr:
+  |  // Returns GCstr *.
+  |  ldr BASE, L->base
+  |   mvn CARG2, #~LJ_TSTR
+  |  b ->fff_restv
+  |
+  |.ffunc string_sub
+  |  ffgccheck
+  |  ldrd CARG12, [BASE]
+  |   ldrd CARG34, [BASE, #16]
+  |    cmp NARGS8:RC, #16
+  |     mvn RB, #0
+  |    beq >1
+  |    blo ->fff_fallback
+  |   checktp CARG4, LJ_TISNUM
+  |    mov RB, CARG3
+  |   bne ->fff_fallback
+  |1:
+  |  ldrd CARG34, [BASE, #8]
+  |  checktp CARG2, LJ_TSTR
+  |   ldreq CARG2, STR:CARG1->len
+  |  checktpeq CARG4, LJ_TISNUM
+  |  bne ->fff_fallback
+  |  // CARG1 = str, CARG2 = str->len, CARG3 = start, RB = end
+  |  add CARG4, CARG2, #1
+  |  cmp CARG3, #0			// if (start < 0) start += len+1
+  |  addlt CARG3, CARG3, CARG4
+  |  cmp CARG3, #1			// if (start < 1) start = 1
+  |  movlt CARG3, #1
+  |  cmp RB, #0				// if (end < 0) end += len+1
+  |  addlt RB, RB, CARG4
+  |  bic RB, RB, RB, asr #31		// if (end < 0) end = 0
+  |  cmp RB, CARG2			// if (end > len) end = len
+  |   add CARG1, STR:CARG1, #sizeof(GCstr)-1
+  |  movgt RB, CARG2
+  |   add CARG2, CARG1, CARG3
+  |  subs CARG3, RB, CARG3		// len = end - start
+  |   add CARG3, CARG3, #1		// len += 1
+  |  bge ->fff_newstr
+  |->fff_emptystr:
+  |  sub STR:CARG1, DISPATCH, #-DISPATCH_GL(strempty)
+  |  mvn CARG2, #~LJ_TSTR
+  |  b ->fff_restv
+  |
+  |.macro ffstring_op, name
+  |  .ffunc string_ .. name
+  |  ffgccheck
+  |  ldr CARG3, [BASE, #4]
+  |   cmp NARGS8:RC, #8
+  |  ldr STR:CARG2, [BASE]
+  |   blo ->fff_fallback
+  |  sub SBUF:CARG1, DISPATCH, #-DISPATCH_GL(tmpbuf)
+  |  checkstr CARG3, ->fff_fallback
+  |  ldr CARG4, SBUF:CARG1->b
+  |   str BASE, L->base
+  |   str PC, SAVE_PC
+  |   str L, SBUF:CARG1->L
+  |  str CARG4, SBUF:CARG1->w
+  |  bl extern lj_buf_putstr_ .. name
+  |  bl extern lj_buf_tostr
+  |  b ->fff_resstr
+  |.endmacro
+  |
+  |ffstring_op reverse
+  |ffstring_op lower
+  |ffstring_op upper
+  |
+  |//-- Bit library --------------------------------------------------------
+  |
+  |// FP number to bit conversion for soft-float. Clobbers r0-r3.
+  |->vm_tobit_fb:
+  |  bhi ->fff_fallback
+  |->vm_tobit:
+  |  lsl RB, CARG2, #1
+  |  adds RB, RB, #0x00200000
+  |  movpl CARG1, #0			// |x| < 1?
+  |  bxpl lr
+  |  mvn CARG4, #0x3e0
+  |  subs RB, CARG4, RB, asr #21
+  |  bmi >1				// |x| >= 2^32?
+  |  lsl CARG4, CARG2, #11
+  |  orr CARG4, CARG4, #0x80000000
+  |  orr CARG4, CARG4, CARG1, lsr #21
+  |   cmp CARG2, #0
+  |  lsr CARG1, CARG4, RB
+  |   rsblt CARG1, CARG1, #0
+  |  bx lr
+  |1:
+  |  add RB, RB, #21
+  |  lsr CARG4, CARG1, RB
+  |  rsb RB, RB, #20
+  |  lsl CARG1, CARG2, #12
+  |   cmp CARG2, #0
+  |  orr CARG1, CARG4, CARG1, lsl RB
+  |   rsblt CARG1, CARG1, #0
+  |  bx lr
+  |
+  |.macro .ffunc_bit, name
+  |  .ffunc_1 bit_..name
+  |  checktp CARG2, LJ_TISNUM
+  |  blne ->vm_tobit_fb
+  |.endmacro
+  |
+  |.ffunc_bit tobit
+  |  mvn CARG2, #~LJ_TISNUM
+  |  b ->fff_restv
+  |
+  |.macro .ffunc_bit_op, name, ins
+  |  .ffunc_bit name
+  |  mov CARG3, CARG1
+  |  mov RA, #8
+  |1:
+  |  ldrd CARG12, [BASE, RA]
+  |   cmp RA, NARGS8:RC
+  |    add RA, RA, #8
+  |   bge >2
+  |  checktp CARG2, LJ_TISNUM
+  |  blne ->vm_tobit_fb
+  |  ins CARG3, CARG3, CARG1
+  |  b <1
+  |.endmacro
+  |
+  |.ffunc_bit_op band, and
+  |.ffunc_bit_op bor, orr
+  |.ffunc_bit_op bxor, eor
+  |
+  |2:
+  |  mvn CARG4, #~LJ_TISNUM
+  |   ldr PC, [BASE, FRAME_PC]
+  |  strd CARG34, [BASE, #-8]
+  |  b ->fff_res1
+  |
+  |.ffunc_bit bswap
+  |  eor CARG3, CARG1, CARG1, ror #16
+  |  bic CARG3, CARG3, #0x00ff0000
+  |  ror CARG1, CARG1, #8
+  |   mvn CARG2, #~LJ_TISNUM
+  |  eor CARG1, CARG1, CARG3, lsr #8
+  |  b ->fff_restv
+  |
+  |.ffunc_bit bnot
+  |  mvn CARG1, CARG1
+  |  mvn CARG2, #~LJ_TISNUM
+  |  b ->fff_restv
+  |
+  |.macro .ffunc_bit_sh, name, ins, shmod
+  |  .ffunc bit_..name
+  |  ldrd CARG12, [BASE, #8]
+  |   cmp NARGS8:RC, #16
+  |   blo ->fff_fallback
+  |  checktp CARG2, LJ_TISNUM
+  |  blne ->vm_tobit_fb
+  |.if shmod == 0
+  |  and RA, CARG1, #31
+  |.else
+  |  rsb RA, CARG1, #0
+  |.endif
+  |  ldrd CARG12, [BASE]
+  |  checktp CARG2, LJ_TISNUM
+  |  blne ->vm_tobit_fb
+  |  ins CARG1, CARG1, RA
+  |  mvn CARG2, #~LJ_TISNUM
+  |  b ->fff_restv
+  |.endmacro
+  |
+  |.ffunc_bit_sh lshift, lsl, 0
+  |.ffunc_bit_sh rshift, lsr, 0
+  |.ffunc_bit_sh arshift, asr, 0
+  |.ffunc_bit_sh rol, ror, 1
+  |.ffunc_bit_sh ror, ror, 0
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->fff_fallback:			// Call fast function fallback handler.
+  |  // BASE = new base, RC = nargs*8
+  |   ldr CARG3, [BASE, FRAME_FUNC]
+  |  ldr CARG2, L->maxstack
+  |  add CARG1, BASE, NARGS8:RC
+  |    ldr PC, [BASE, FRAME_PC]		// Fallback may overwrite PC.
+  |  str CARG1, L->top
+  |   ldr CARG3, CFUNC:CARG3->f
+  |    str BASE, L->base
+  |  add CARG1, CARG1, #8*LUA_MINSTACK
+  |    str PC, SAVE_PC			// Redundant (but a defined value).
+  |  cmp CARG1, CARG2
+  |   mov CARG1, L
+  |  bhi >5				// Need to grow stack.
+  |   blx CARG3				// (lua_State *L)
+  |  // Either throws an error, or recovers and returns -1, 0 or nresults+1.
+  |   ldr BASE, L->base
+  |  cmp CRET1, #0
+  |   lsl RC, CRET1, #3
+  |   sub RA, BASE, #8
+  |  bgt ->fff_res			// Returned nresults+1?
+  |1:  // Returned 0 or -1: retry fast path.
+  |   ldr CARG1, L->top
+  |    ldr LFUNC:CARG3, [BASE, FRAME_FUNC]
+  |   sub NARGS8:RC, CARG1, BASE
+  |  bne ->vm_call_tail			// Returned -1?
+  |  ins_callt				// Returned 0: retry fast path.
+  |
+  |// Reconstruct previous base for vmeta_call during tailcall.
+  |->vm_call_tail:
+  |  ands CARG1, PC, #FRAME_TYPE
+  |   bic CARG2, PC, #FRAME_TYPEP
+  |  ldreq INS, [PC, #-4]
+  |  andeq CARG2, MASKR8, INS, lsr #5	// Conditional decode_RA8.
+  |  addeq CARG2, CARG2, #8
+  |  sub RB, BASE, CARG2
+  |  b ->vm_call_dispatch		// Resolve again for tailcall.
+  |
+  |5:  // Grow stack for fallback handler.
+  |  mov CARG2, #LUA_MINSTACK
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  ldr BASE, L->base
+  |  cmp CARG1, CARG1			// Set zero-flag to force retry.
+  |  b <1
+  |
+  |->fff_gcstep:			// Call GC step function.
+  |  // BASE = new base, RC = nargs*8
+  |  mov RA, lr
+  |   str BASE, L->base
+  |  add CARG2, BASE, NARGS8:RC
+  |   str PC, SAVE_PC			// Redundant (but a defined value).
+  |  str CARG2, L->top
+  |  mov CARG1, L
+  |  bl extern lj_gc_step		// (lua_State *L)
+  |   ldr BASE, L->base
+  |  mov lr, RA				// Help return address predictor.
+  |   ldr CFUNC:CARG3, [BASE, FRAME_FUNC]
+  |  bx lr
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Special dispatch targets -------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_record:				// Dispatch target for recording phase.
+  |.if JIT
+  |  ldrb CARG1, [DISPATCH, #DISPATCH_GL(hookmask)]
+  |  tst CARG1, #HOOK_VMEVENT		// No recording while in vmevent.
+  |  bne >5
+  |  // Decrement the hookcount for consistency, but always do the call.
+  |   ldr CARG2, [DISPATCH, #DISPATCH_GL(hookcount)]
+  |  tst CARG1, #HOOK_ACTIVE
+  |  bne >1
+  |   sub CARG2, CARG2, #1
+  |  tst CARG1, #LUA_MASKLINE|LUA_MASKCOUNT
+  |   strne CARG2, [DISPATCH, #DISPATCH_GL(hookcount)]
+  |  b >1
+  |.endif
+  |
+  |->vm_rethook:			// Dispatch target for return hooks.
+  |  ldrb CARG1, [DISPATCH, #DISPATCH_GL(hookmask)]
+  |  tst CARG1, #HOOK_ACTIVE		// Hook already active?
+  |  beq >1
+  |5:  // Re-dispatch to static ins.
+  |  decode_OP OP, INS
+  |  add OP, DISPATCH, OP, lsl #2
+  |  ldr pc, [OP, #GG_DISP2STATIC]
+  |
+  |->vm_inshook:			// Dispatch target for instr/line hooks.
+  |  ldrb CARG1, [DISPATCH, #DISPATCH_GL(hookmask)]
+  |   ldr CARG2, [DISPATCH, #DISPATCH_GL(hookcount)]
+  |  tst CARG1, #HOOK_ACTIVE		// Hook already active?
+  |  bne <5
+  |  tst CARG1, #LUA_MASKLINE|LUA_MASKCOUNT
+  |  beq <5
+  |   subs CARG2, CARG2, #1
+  |   str CARG2, [DISPATCH, #DISPATCH_GL(hookcount)]
+  |   beq >1
+  |  tst CARG1, #LUA_MASKLINE
+  |  beq <5
+  |1:
+  |  mov CARG1, L
+  |   str BASE, L->base
+  |  mov CARG2, PC
+  |  // SAVE_PC must hold the _previous_ PC. The callee updates it with PC.
+  |  bl extern lj_dispatch_ins		// (lua_State *L, const BCIns *pc)
+  |3:
+  |  ldr BASE, L->base
+  |4:  // Re-dispatch to static ins.
+  |  ldrb OP, [PC, #-4]
+  |   ldr INS, [PC, #-4]
+  |  add OP, DISPATCH, OP, lsl #2
+  |  ldr OP, [OP, #GG_DISP2STATIC]
+  |   decode_RA8 RA, INS
+  |   decode_RD RC, INS
+  |  bx OP
+  |
+  |->cont_hook:				// Continue from hook yield.
+  |  ldr CARG1, [CARG4, #-24]
+  |   add PC, PC, #4
+  |  str CARG1, SAVE_MULTRES		// Restore MULTRES for *M ins.
+  |  b <4
+  |
+  |->vm_hotloop:			// Hot loop counter underflow.
+  |.if JIT
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]  // Same as curr_topL(L).
+  |   sub CARG1, DISPATCH, #-GG_DISP2J
+  |   str PC, SAVE_PC
+  |  ldr CARG3, LFUNC:CARG3->field_pc
+  |   mov CARG2, PC
+  |   str L, [DISPATCH, #DISPATCH_J(L)]
+  |  ldrb CARG3, [CARG3, #PC2PROTO(framesize)]
+  |   str BASE, L->base
+  |  add CARG3, BASE, CARG3, lsl #3
+  |  str CARG3, L->top
+  |  bl extern lj_trace_hot		// (jit_State *J, const BCIns *pc)
+  |  b <3
+  |.endif
+  |
+  |->vm_callhook:			// Dispatch target for call hooks.
+  |  mov CARG2, PC
+  |.if JIT
+  |  b >1
+  |.endif
+  |
+  |->vm_hotcall:			// Hot call counter underflow.
+  |.if JIT
+  |  orr CARG2, PC, #1
+  |1:
+  |.endif
+  |  add CARG4, BASE, RC
+  |   str PC, SAVE_PC
+  |    mov CARG1, L
+  |   str BASE, L->base
+  |    sub RA, RA, BASE
+  |  str CARG4, L->top
+  |  bl extern lj_dispatch_call		// (lua_State *L, const BCIns *pc)
+  |  // Returns ASMFunction.
+  |  ldr BASE, L->base
+  |   ldr CARG4, L->top
+  |    mov CARG2, #0
+  |  add RA, BASE, RA
+  |   sub NARGS8:RC, CARG4, BASE
+  |    str CARG2, SAVE_PC		// Invalidate for subsequent line hook.
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]
+  |   ldr INS, [PC, #-4]
+  |  bx CRET1
+  |
+  |->cont_stitch:			// Trace stitching.
+  |.if JIT
+  |  // RA = resultptr, CARG4 = meta base
+  |   ldr RB, SAVE_MULTRES
+  |  ldr INS, [PC, #-4]
+  |    ldr TRACE:CARG3, [CARG4, #-24]	// Save previous trace.
+  |   subs RB, RB, #8
+  |  decode_RA8 RC, INS			// Call base.
+  |   beq >2
+  |1:  // Move results down.
+  |  ldrd CARG12, [RA]
+  |    add RA, RA, #8
+  |   subs RB, RB, #8
+  |  strd CARG12, [BASE, RC]
+  |    add RC, RC, #8
+  |   bne <1
+  |2:
+  |   decode_RA8 RA, INS
+  |   decode_RB8 RB, INS
+  |   add RA, RA, RB
+  |3:
+  |   cmp RA, RC
+  |  mvn CARG2, #~LJ_TNIL
+  |   bhi >9				// More results wanted?
+  |
+  |  ldrh RA, TRACE:CARG3->traceno
+  |  ldrh RC, TRACE:CARG3->link
+  |  cmp RC, RA
+  |  beq ->cont_nop			// Blacklisted.
+  |  cmp RC, #0
+  |  bne =>BC_JLOOP			// Jump to stitched trace.
+  |
+  |  // Stitch a new trace to the previous trace.
+  |  str RA, [DISPATCH, #DISPATCH_J(exitno)]
+  |  str L, [DISPATCH, #DISPATCH_J(L)]
+  |  str BASE, L->base
+  |  sub CARG1, DISPATCH, #-GG_DISP2J
+  |  mov CARG2, PC
+  |  bl extern lj_dispatch_stitch	// (jit_State *J, const BCIns *pc)
+  |  ldr BASE, L->base
+  |  b ->cont_nop
+  |
+  |9:  // Fill up results with nil.
+  |  strd CARG12, [BASE, RC]
+  |  add RC, RC, #8
+  |  b <3
+  |.endif
+  |
+  |->vm_profhook:			// Dispatch target for profiler hook.
+#if LJ_HASPROFILE
+  |  mov CARG1, L
+  |   str BASE, L->base
+  |  mov CARG2, PC
+  |  bl extern lj_dispatch_profile	// (lua_State *L, const BCIns *pc)
+  |  // HOOK_PROFILE is off again, so re-dispatch to dynamic instruction.
+  |  ldr BASE, L->base
+  |  sub PC, PC, #4
+  |  b ->cont_nop
+#endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Trace exit handler -------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_exit_handler:
+  |.if JIT
+  |  sub sp, sp, #12
+  |  push {r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11,r12}
+  |  ldr CARG1, [sp, #64]	// Load original value of lr.
+  |   ldr DISPATCH, [lr]	// Load DISPATCH.
+  |    add CARG3, sp, #64	// Recompute original value of sp.
+  |   mv_vmstate CARG4, EXIT
+  |    str CARG3, [sp, #52]	// Store sp in RID_SP
+  |   st_vmstate CARG4
+  |  ldr CARG2, [CARG1, #-4]!	// Get exit instruction.
+  |   str CARG1, [sp, #56]	// Store exit pc in RID_LR and RID_PC.
+  |   str CARG1, [sp, #60]
+  |.if FPU
+  |  vpush {d0-d15}
+  |.endif
+  |  lsl CARG2, CARG2, #8
+  |  add CARG1, CARG1, CARG2, asr #6
+  |   ldr CARG2, [lr, #4]	// Load exit stub group offset.
+  |   sub CARG1, CARG1, lr
+  |  ldr L, [DISPATCH, #DISPATCH_GL(cur_L)]
+  |   add CARG1, CARG2, CARG1, lsr #2	// Compute exit number.
+  |    ldr BASE, [DISPATCH, #DISPATCH_GL(jit_base)]
+  |   str CARG1, [DISPATCH, #DISPATCH_J(exitno)]
+  |   mov CARG4, #0
+  |    str BASE, L->base
+  |  str L, [DISPATCH, #DISPATCH_J(L)]
+  |   str CARG4, [DISPATCH, #DISPATCH_GL(jit_base)]
+  |  sub CARG1, DISPATCH, #-GG_DISP2J
+  |  mov CARG2, sp
+  |  bl extern lj_trace_exit		// (jit_State *J, ExitState *ex)
+  |  // Returns MULTRES (unscaled) or negated error code.
+  |  ldr CARG2, L->cframe
+  |   ldr BASE, L->base
+  |  bic CARG2, CARG2, #~CFRAME_RAWMASK	// Use two steps: bic sp is deprecated.
+  |  mov sp, CARG2
+  |   ldr PC, SAVE_PC			// Get SAVE_PC.
+  |  str L, SAVE_L			// Set SAVE_L (on-trace resume/yield).
+  |  b >1
+  |.endif
+  |->vm_exit_interp:
+  |  // CARG1 = MULTRES or negated error code, BASE, PC and DISPATCH set.
+  |.if JIT
+  |  ldr L, SAVE_L
+  |1:
+  |  cmp CARG1, #0
+  |  blt >9				// Check for error from exit.
+  |   lsl RC, CARG1, #3
+  |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+  |   str RC, SAVE_MULTRES
+  |   mov CARG3, #0
+  |   str BASE, L->base
+  |  ldr CARG2, LFUNC:CARG2->field_pc
+  |   str CARG3, [DISPATCH, #DISPATCH_GL(jit_base)]
+  |    mv_vmstate CARG4, INTERP
+  |  ldr KBASE, [CARG2, #PC2PROTO(k)]
+  |  // Modified copy of ins_next which handles function header dispatch, too.
+  |  ldrb OP, [PC]
+  |     mov MASKR8, #255
+  |   ldr INS, [PC], #4
+  |     lsl MASKR8, MASKR8, #3		// MASKR8 = 255*8.
+  |    st_vmstate CARG4
+  |  cmp OP, #BC_FUNCC+2		// Fast function?
+  |  bhs >4
+  |2:
+  |  cmp OP, #BC_FUNCF			// Function header?
+  |  ldr OP, [DISPATCH, OP, lsl #2]
+  |   decode_RA8 RA, INS
+  |   lsrlo RC, INS, #16	// No: Decode operands A*8 and D.
+  |   subhs RC, RC, #8
+  |   addhs RA, RA, BASE	// Yes: RA = BASE+framesize*8, RC = nargs*8
+  |   ldrhs CARG3, [BASE, FRAME_FUNC]
+  |  bx OP
+  |
+  |4:  // Check frame below fast function.
+  |  ldr CARG1, [BASE, FRAME_PC]
+  |  ands CARG2, CARG1, #FRAME_TYPE
+  |  bne <2			// Trace stitching continuation?
+  |  // Otherwise set KBASE for Lua function below fast function.
+  |  ldr CARG3, [CARG1, #-4]
+  |  decode_RA8 CARG1, CARG3
+  |  sub CARG2, BASE, CARG1
+  |  ldr LFUNC:CARG3, [CARG2, #-16]
+  |  ldr CARG3, LFUNC:CARG3->field_pc
+  |  ldr KBASE, [CARG3, #PC2PROTO(k)]
+  |  b <2
+  |
+  |9:  // Rethrow error from the right C frame.
+  |  rsb CARG2, CARG1, #0
+  |  mov CARG1, L
+  |  bl extern lj_err_trace		// (lua_State *L, int errcode)
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Math helper functions ----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// FP value rounding. Called from JIT code.
+  |//
+  |// double lj_vm_floor/ceil/trunc(double x);
+  |.macro vm_round, func, hf
+  |.if hf == 1
+  |  vmov CARG1, CARG2, d0
+  |.endif
+  |  lsl CARG3, CARG2, #1
+  |  adds RB, CARG3, #0x00200000
+  |  bpl >2				// |x| < 1?
+  |  mvn CARG4, #0x3cc
+  |  subs RB, CARG4, RB, asr #21	// 2^0: RB = 51, 2^51: RB = 0.
+  |  bxlo lr				// |x| >= 2^52: done.
+  |  mvn CARG4, #1
+  |   bic CARG3, CARG1, CARG4, lsl RB	// ztest = lo & ~lomask
+  |  and CARG1, CARG1, CARG4, lsl RB	// lo &= lomask
+  |  subs RB, RB, #32
+  |   bicpl CARG4, CARG2, CARG4, lsl RB	// |x| <= 2^20: ztest |= hi & ~himask
+  |   orrpl CARG3, CARG3, CARG4
+  |   mvnpl CARG4, #1
+  |  andpl CARG2, CARG2, CARG4, lsl RB	// |x| <= 2^20: hi &= himask
+  |.if "func" == "floor"
+  |   tst CARG3, CARG2, asr #31		// iszero = ((ztest & signmask) == 0)
+  |.else
+  |   bics CARG3, CARG3, CARG2, asr #31	// iszero = ((ztest & ~signmask) == 0)
+  |.endif
+  |.if hf == 1
+  |  vmoveq d0, CARG1, CARG2
+  |.endif
+  |  bxeq lr				// iszero: done.
+  |  mvn CARG4, #1
+  |  cmp RB, #0
+  |  lslpl CARG3, CARG4, RB
+  |  mvnmi CARG3, #0
+  |  add RB, RB, #32
+  |  subs CARG1, CARG1, CARG4, lsl RB	// lo = lo-lomask
+  |  sbc CARG2, CARG2, CARG3		// hi = hi-himask+carry
+  |.if hf == 1
+  |  vmov d0, CARG1, CARG2
+  |.endif
+  |  bx lr
+  |
+  |2:  // |x| < 1:
+  |  bxcs lr				// |x| is not finite.
+  |  orr CARG3, CARG3, CARG1		// ztest = (2*hi) | lo
+  |.if "func" == "floor"
+  |  tst CARG3, CARG2, asr #31		// iszero = ((ztest & signmask) == 0)
+  |.else
+  |  bics CARG3, CARG3, CARG2, asr #31	// iszero = ((ztest & ~signmask) == 0)
+  |.endif
+  |  mov CARG1, #0			// lo = 0
+  |  and CARG2, CARG2, #0x80000000
+  |  ldrne CARG4, <9			// hi = sign(x) | (iszero ? 0.0 : 1.0)
+  |  orrne CARG2, CARG2, CARG4
+  |.if hf == 1
+  |  vmov d0, CARG1, CARG2
+  |.endif
+  |  bx lr
+  |.endmacro
+  |
+  |9:
+  |  .long 0x3ff00000			// hiword(+1.0)
+  |
+  |->vm_floor:
+  |.if HFABI
+  |  vm_round floor, 1
+  |.endif
+  |->vm_floor_sf:
+  |  vm_round floor, 0
+  |
+  |->vm_ceil:
+  |.if HFABI
+  |  vm_round ceil, 1
+  |.endif
+  |->vm_ceil_sf:
+  |  vm_round ceil, 0
+  |
+  |.macro vm_trunc, hf
+  |.if JIT
+  |.if hf == 1
+  |  vmov CARG1, CARG2, d0
+  |.endif
+  |  lsl CARG3, CARG2, #1
+  |  adds RB, CARG3, #0x00200000
+  |  andpl CARG2, CARG2, #0x80000000	// |x| < 1? hi = sign(x), lo = 0.
+  |  movpl CARG1, #0
+  |.if hf == 1
+  |  vmovpl d0, CARG1, CARG2
+  |.endif
+  |  bxpl lr
+  |  mvn CARG4, #0x3cc
+  |  subs RB, CARG4, RB, asr #21	// 2^0: RB = 51, 2^51: RB = 0.
+  |  bxlo lr				// |x| >= 2^52: already done.
+  |  mvn CARG4, #1
+  |  and CARG1, CARG1, CARG4, lsl RB	// lo &= lomask
+  |  subs RB, RB, #32
+  |  andpl CARG2, CARG2, CARG4, lsl RB	// |x| <= 2^20: hi &= himask
+  |.if hf == 1
+  |  vmov d0, CARG1, CARG2
+  |.endif
+  |  bx lr
+  |.endif
+  |.endmacro
+  |
+  |->vm_trunc:
+  |.if HFABI
+  |  vm_trunc 1
+  |.endif
+  |->vm_trunc_sf:
+  |  vm_trunc 0
+  |
+  |  // double lj_vm_mod(double dividend, double divisor);
+  |->vm_mod:
+  |.if FPU
+  |  // Special calling convention. Also, RC (r11) is not preserved.
+  |  vdiv.f64 d0, d6, d7
+  |   mov RC, lr
+  |  vmov CARG1, CARG2, d0
+  |  bl ->vm_floor_sf
+  |  vmov d0, CARG1, CARG2
+  |  vmul.f64 d0, d0, d7
+  |   mov lr, RC
+  |  vsub.f64 d6, d6, d0
+  |  bx lr
+  |.else
+  |  push {r0, r1, r2, r3, r4, lr}
+  |  bl extern __aeabi_ddiv
+  |  bl ->vm_floor_sf
+  |  ldrd CARG34, [sp, #8]
+  |  bl extern __aeabi_dmul
+  |  ldrd CARG34, [sp]
+  |  eor CARG2, CARG2, #0x80000000
+  |  bl extern __aeabi_dadd
+  |  add sp, sp, #20
+  |  pop {pc}
+  |.endif
+  |
+  |  // int lj_vm_modi(int dividend, int divisor);
+  |->vm_modi:
+  |  ands RB, CARG1, #0x80000000
+  |  rsbmi CARG1, CARG1, #0		// a = |dividend|
+  |  eor RB, RB, CARG2, asr #1		// Keep signdiff and sign(divisor).
+  |  cmp CARG2, #0
+  |  rsbmi CARG2, CARG2, #0		// b = |divisor|
+  |  subs CARG4, CARG2, #1
+  |  cmpne CARG1, CARG2
+  |  moveq CARG1, #0			// if (b == 1 || a == b) a = 0
+  |  tsthi CARG2, CARG4
+  |  andeq CARG1, CARG1, CARG4		// else if ((b & (b-1)) == 0) a &= b-1
+  |  bls >1
+  |  // Use repeated subtraction to get the remainder.
+  |  clz CARG3, CARG1
+  |  clz CARG4, CARG2
+  |  sub CARG4, CARG4, CARG3
+  |  rsbs CARG3, CARG4, #31		// entry = (31-(clz(b)-clz(a)))*8
+  |  addne pc, pc, CARG3, lsl #3	// Duff's device.
+  |  nop
+  {
+    int i;
+    for (i = 31; i >= 0; i--) {
+      |  cmp CARG1, CARG2, lsl #i
+      |  subhs CARG1, CARG1, CARG2, lsl #i
+    }
+  }
+  |1:
+  |  cmp CARG1, #0
+  |  cmpne RB, #0
+  |  submi CARG1, CARG1, CARG2		// if (y != 0 && signdiff) y = y - b
+  |  eors CARG2, CARG1, RB, lsl #1
+  |  rsbmi CARG1, CARG1, #0		// if (sign(divisor) != sign(y)) y = -y
+  |  bx lr
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Miscellaneous functions --------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.define NEXT_TAB,		TAB:CARG1
+  |.define NEXT_RES,		CARG1
+  |.define NEXT_IDX,		CARG2
+  |.define NEXT_TMP0,		CARG3
+  |.define NEXT_TMP1,		CARG4
+  |.define NEXT_LIM,		r12
+  |.define NEXT_RES_PTR,	sp
+  |.define NEXT_RES_VAL,	[sp]
+  |.define NEXT_RES_KEY_I,	[sp, #8]
+  |.define NEXT_RES_KEY_IT,	[sp, #12]
+  |
+  |// TValue *lj_vm_next(GCtab *t, uint32_t idx)
+  |// Next idx returned in CRET2.
+  |->vm_next:
+  |.if JIT
+  |  ldr NEXT_TMP0, NEXT_TAB->array
+  |   ldr NEXT_LIM, NEXT_TAB->asize
+  |  add NEXT_TMP0, NEXT_TMP0, NEXT_IDX, lsl #3
+  |1:  // Traverse array part.
+  |   subs NEXT_TMP1, NEXT_IDX, NEXT_LIM
+  |   bhs >5
+  |  ldr NEXT_TMP1, [NEXT_TMP0, #4]
+  |   str NEXT_IDX, NEXT_RES_KEY_I
+  |   add NEXT_TMP0, NEXT_TMP0, #8
+  |   add NEXT_IDX, NEXT_IDX, #1
+  |  checktp NEXT_TMP1, LJ_TNIL
+  |  beq <1				// Skip holes in array part.
+  |  ldr NEXT_TMP0, [NEXT_TMP0, #-8]
+  |   mov NEXT_RES, NEXT_RES_PTR
+  |  strd NEXT_TMP0, NEXT_RES_VAL	// Stores NEXT_TMP1, too.
+  |  mvn NEXT_TMP0, #~LJ_TISNUM
+  |  str NEXT_TMP0, NEXT_RES_KEY_IT
+  |  bx lr
+  |
+  |5:  // Traverse hash part.
+  |  ldr NEXT_TMP0, NEXT_TAB->hmask
+  |   ldr NODE:NEXT_RES, NEXT_TAB->node
+  |   add NEXT_TMP1, NEXT_TMP1, NEXT_TMP1, lsl #1
+  |  add NEXT_LIM, NEXT_LIM, NEXT_TMP0
+  |   add NODE:NEXT_RES, NODE:NEXT_RES, NEXT_TMP1, lsl #3
+  |6:
+  |  cmp NEXT_IDX, NEXT_LIM
+  |  bhi >9
+  |  ldr NEXT_TMP1, NODE:NEXT_RES->val.it
+  |  checktp NEXT_TMP1, LJ_TNIL
+  |   add NEXT_IDX, NEXT_IDX, #1
+  |  bxne lr
+  |  // Skip holes in hash part.
+  |  add NEXT_RES, NEXT_RES, #sizeof(Node)
+  |  b <6
+  |
+  |9:  // End of iteration. Set the key to nil (not the value).
+  |  mvn NEXT_TMP0, #0
+  |   mov NEXT_RES, NEXT_RES_PTR
+  |  str NEXT_TMP0, NEXT_RES_KEY_IT
+  |  bx lr
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- FFI helper functions -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Handler for callback functions.
+  |// Saveregs already performed. Callback slot number in [sp], g in r12.
+  |->vm_ffi_callback:
+  |.if FFI
+  |.type CTSTATE, CTState, PC
+  |  ldr CTSTATE, GL:r12->ctype_state
+  |   add DISPATCH, r12, #GG_G2DISP
+  |.if FPU
+  |  str r4, SAVE_R4
+  |  add r4, sp, CFRAME_SPACE+4+8*8
+  |  vstmdb r4!, {d8-d15}
+  |.endif
+  |.if HFABI
+  |  add r12, CTSTATE, #offsetof(CTState, cb.fpr[8])
+  |.endif
+  |  strd CARG34, CTSTATE->cb.gpr[2]
+  |  strd CARG12, CTSTATE->cb.gpr[0]
+  |.if HFABI
+  |  vstmdb r12!, {d0-d7}
+  |.endif
+  |  ldr CARG4, [sp]
+  |   add CARG3, sp, #CFRAME_SIZE
+  |    mov CARG1, CTSTATE
+  |  lsr CARG4, CARG4, #3
+  |   str CARG3, CTSTATE->cb.stack
+  |    mov CARG2, sp
+  |  str CARG4, CTSTATE->cb.slot
+  |  str CTSTATE, SAVE_PC		// Any value outside of bytecode is ok.
+  |  bl extern lj_ccallback_enter	// (CTState *cts, void *cf)
+  |  // Returns lua_State *.
+  |  ldr BASE, L:CRET1->base
+  |    mv_vmstate CARG2, INTERP
+  |  ldr RC, L:CRET1->top
+  |    mov MASKR8, #255
+  |   ldr LFUNC:CARG3, [BASE, FRAME_FUNC]
+  |    mov L, CRET1
+  |  sub RC, RC, BASE
+  |    lsl MASKR8, MASKR8, #3		// MASKR8 = 255*8.
+  |    st_vmstate CARG2
+  |  ins_callt
+  |.endif
+  |
+  |->cont_ffi_callback:			// Return from FFI callback.
+  |.if FFI
+  |  ldr CTSTATE, [DISPATCH, #DISPATCH_GL(ctype_state)]
+  |   str BASE, L->base
+  |   str CARG4, L->top
+  |  str L, CTSTATE->L
+  |  mov CARG1, CTSTATE
+  |  mov CARG2, RA
+  |  bl extern lj_ccallback_leave	// (CTState *cts, TValue *o)
+  |  ldrd CARG12, CTSTATE->cb.gpr[0]
+  |.if HFABI
+  |  vldr d0, CTSTATE->cb.fpr[0]
+  |.endif
+  |  b ->vm_leave_unw
+  |.endif
+  |
+  |->vm_ffi_call:			// Call C function via FFI.
+  |  // Caveat: needs special frame unwinding, see below.
+  |.if FFI
+  |  .type CCSTATE, CCallState, r4
+  |  push {CCSTATE, r5, r11, lr}
+  |  mov CCSTATE, CARG1
+  |  ldr CARG1, CCSTATE:CARG1->spadj
+  |   ldrb CARG2, CCSTATE->nsp
+  |    add CARG3, CCSTATE, #offsetof(CCallState, stack)
+  |.if HFABI
+  |  add RB, CCSTATE, #offsetof(CCallState, fpr[0])
+  |.endif
+  |  mov r11, sp
+  |  sub sp, sp, CARG1			// Readjust stack.
+  |   subs CARG2, CARG2, #1
+  |.if HFABI
+  |  vldm RB, {d0-d7}
+  |.endif
+  |    ldr RB, CCSTATE->func
+  |   bmi >2
+  |1:  // Copy stack slots.
+  |  ldr CARG4, [CARG3, CARG2, lsl #2]
+  |  str CARG4, [sp, CARG2, lsl #2]
+  |  subs CARG2, CARG2, #1
+  |  bpl <1
+  |2:
+  |  ldrd CARG12, CCSTATE->gpr[0]
+  |  ldrd CARG34, CCSTATE->gpr[2]
+  |  blx RB
+  |  mov sp, r11
+  |.if HFABI
+  |  add r12, CCSTATE, #offsetof(CCallState, fpr[4])
+  |.endif
+  |  strd CRET1, CCSTATE->gpr[0]
+  |.if HFABI
+  |  vstmdb r12!, {d0-d3}
+  |.endif
+  |  pop {CCSTATE, r5, r11, pc}
+  |.endif
+  |// Note: vm_ffi_call must be the last function in this object file!
+  |
+  |//-----------------------------------------------------------------------
+}
+
+/* Generate the code for a single instruction. */
+static void build_ins(BuildCtx *ctx, BCOp op, int defop)
+{
+  int vk = 0;
+  |=>defop:
+
+  switch (op) {
+
+  /* -- Comparison ops ---------------------------------------------------- */
+
+  /* Remember: all ops branch for a true comparison, fall through otherwise. */
+
+  case BC_ISLT: case BC_ISGE: case BC_ISLE: case BC_ISGT:
+    |  // RA = src1*8, RC = src2, JMP with RC = target
+    |   lsl RC, RC, #3
+    |  ldrd CARG12, [RA, BASE]!
+    |    ldrh RB, [PC, #2]
+    |   ldrd CARG34, [RC, BASE]!
+    |    add PC, PC, #4
+    |    add RB, PC, RB, lsl #2
+    |  checktp CARG2, LJ_TISNUM
+    |  bne >3
+    |  checktp CARG4, LJ_TISNUM
+    |  bne >4
+    |  cmp CARG1, CARG3
+    if (op == BC_ISLT) {
+      |  sublt PC, RB, #0x20000
+    } else if (op == BC_ISGE) {
+      |  subge PC, RB, #0x20000
+    } else if (op == BC_ISLE) {
+      |  suble PC, RB, #0x20000
+    } else {
+      |  subgt PC, RB, #0x20000
+    }
+    |1:
+    |  ins_next
+    |
+    |3: // CARG12 is not an integer.
+    |.if FPU
+    |   vldr d0, [RA]
+    |  bhi ->vmeta_comp
+    |  // d0 is a number.
+    |  checktp CARG4, LJ_TISNUM
+    |   vldr d1, [RC]
+    |  blo >5
+    |  bhi ->vmeta_comp
+    |  // d0 is a number, CARG3 is an integer.
+    |  vmov s4, CARG3
+    |  vcvt.f64.s32 d1, s4
+    |  b >5
+    |4:  // CARG1 is an integer, CARG34 is not an integer.
+    |   vldr d1, [RC]
+    |  bhi ->vmeta_comp
+    |  // CARG1 is an integer, d1 is a number.
+    |  vmov s4, CARG1
+    |  vcvt.f64.s32 d0, s4
+    |5:  // d0 and d1 are numbers.
+    |  vcmp.f64 d0, d1
+    |  vmrs
+    |  // To preserve NaN semantics GE/GT branch on unordered, but LT/LE don't.
+    if (op == BC_ISLT) {
+      |  sublo PC, RB, #0x20000
+    } else if (op == BC_ISGE) {
+      |  subhs PC, RB, #0x20000
+    } else if (op == BC_ISLE) {
+      |  subls PC, RB, #0x20000
+    } else {
+      |  subhi PC, RB, #0x20000
+    }
+    |  b <1
+    |.else
+    |  bhi ->vmeta_comp
+    |  // CARG12 is a number.
+    |  checktp CARG4, LJ_TISNUM
+    |  movlo RA, RB			// Save RB.
+    |  blo >5
+    |  bhi ->vmeta_comp
+    |  // CARG12 is a number, CARG3 is an integer.
+    |  mov CARG1, CARG3
+    |  mov RC, RA
+    |  mov RA, RB			// Save RB.
+    |  bl extern __aeabi_i2d
+    |  mov CARG3, CARG1
+    |  mov CARG4, CARG2
+    |  ldrd CARG12, [RC]		// Restore first operand.
+    |  b >5
+    |4:  // CARG1 is an integer, CARG34 is not an integer.
+    |  bhi ->vmeta_comp
+    |  // CARG1 is an integer, CARG34 is a number.
+    |  mov RA, RB			// Save RB.
+    |  bl extern __aeabi_i2d
+    |  ldrd CARG34, [RC]		// Restore second operand.
+    |5:  // CARG12 and CARG34 are numbers.
+    |  bl extern __aeabi_cdcmple
+    |  // To preserve NaN semantics GE/GT branch on unordered, but LT/LE don't.
+    if (op == BC_ISLT) {
+      |  sublo PC, RA, #0x20000
+    } else if (op == BC_ISGE) {
+      |  subhs PC, RA, #0x20000
+    } else if (op == BC_ISLE) {
+      |  subls PC, RA, #0x20000
+    } else {
+      |  subhi PC, RA, #0x20000
+    }
+    |  b <1
+    |.endif
+    break;
+
+  case BC_ISEQV: case BC_ISNEV:
+    vk = op == BC_ISEQV;
+    |  // RA = src1*8, RC = src2, JMP with RC = target
+    |   lsl RC, RC, #3
+    |  ldrd CARG12, [RA, BASE]!
+    |    ldrh RB, [PC, #2]
+    |   ldrd CARG34, [RC, BASE]!
+    |    add PC, PC, #4
+    |    add RB, PC, RB, lsl #2
+    |  checktp CARG2, LJ_TISNUM
+    |  cmnls CARG4, #-LJ_TISNUM
+    if (vk) {
+      |  bls ->BC_ISEQN_Z
+    } else {
+      |  bls ->BC_ISNEN_Z
+    }
+    |  // Either or both types are not numbers.
+    |.if FFI
+    |  checktp CARG2, LJ_TCDATA
+    |  checktpne CARG4, LJ_TCDATA
+    |  beq ->vmeta_equal_cd
+    |.endif
+    |  cmp CARG2, CARG4			// Compare types.
+    |  bne >2				// Not the same type?
+    |  checktp CARG2, LJ_TISPRI
+    |  bhs >1				// Same type and primitive type?
+    |
+    |  // Same types and not a primitive type. Compare GCobj or pvalue.
+    |  cmp CARG1, CARG3
+    if (vk) {
+      |  bne >3				// Different GCobjs or pvalues?
+      |1:  // Branch if same.
+      |  sub PC, RB, #0x20000
+      |2:  // Different.
+      |  ins_next
+      |3:
+      |  checktp CARG2, LJ_TISTABUD
+      |  bhi <2				// Different objects and not table/ud?
+    } else {
+      |  beq >1				// Same GCobjs or pvalues?
+      |  checktp CARG2, LJ_TISTABUD
+      |  bhi >2				// Different objects and not table/ud?
+    }
+    |  // Different tables or userdatas. Need to check __eq metamethod.
+    |  // Field metatable must be at same offset for GCtab and GCudata!
+    |  ldr TAB:RA, TAB:CARG1->metatable
+    |  cmp TAB:RA, #0
+    if (vk) {
+      |  beq <2			// No metatable?
+    } else {
+      |  beq >2			// No metatable?
+    }
+    |  ldrb RA, TAB:RA->nomm
+    |   mov CARG4, #1-vk		// ne = 0 or 1.
+    |   mov CARG2, CARG1
+    |  tst RA, #1<<MM_eq
+    |  beq ->vmeta_equal		// 'no __eq' flag not set?
+    if (vk) {
+      |  b <2
+    } else {
+      |2:  // Branch if different.
+      |  sub PC, RB, #0x20000
+      |1:  // Same.
+      |  ins_next
+    }
+    break;
+
+  case BC_ISEQS: case BC_ISNES:
+    vk = op == BC_ISEQS;
+    |  // RA = src*8, RC = str_const (~), JMP with RC = target
+    |   mvn RC, RC
+    |  ldrd CARG12, [BASE, RA]
+    |    ldrh RB, [PC, #2]
+    |   ldr STR:CARG3, [KBASE, RC, lsl #2]
+    |    add PC, PC, #4
+    |    add RB, PC, RB, lsl #2
+    |  checktp CARG2, LJ_TSTR
+    |.if FFI
+    |  bne >7
+    |  cmp CARG1, CARG3
+    |.else
+    |  cmpeq CARG1, CARG3
+    |.endif
+    if (vk) {
+      |  subeq PC, RB, #0x20000
+      |1:
+    } else {
+      |1:
+      |  subne PC, RB, #0x20000
+    }
+    |  ins_next
+    |
+    |.if FFI
+    |7:
+    |  checktp CARG2, LJ_TCDATA
+    |  bne <1
+    |  b ->vmeta_equal_cd
+    |.endif
+    break;
+
+  case BC_ISEQN: case BC_ISNEN:
+    vk = op == BC_ISEQN;
+    |  // RA = src*8, RC = num_const (~), JMP with RC = target
+    |   lsl RC, RC, #3
+    |  ldrd CARG12, [RA, BASE]!
+    |    ldrh RB, [PC, #2]
+    |   ldrd CARG34, [RC, KBASE]!
+    |    add PC, PC, #4
+    |    add RB, PC, RB, lsl #2
+    if (vk) {
+      |->BC_ISEQN_Z:
+    } else {
+      |->BC_ISNEN_Z:
+    }
+    |  checktp CARG2, LJ_TISNUM
+    |  bne >3
+    |  checktp CARG4, LJ_TISNUM
+    |  bne >4
+    |  cmp CARG1, CARG3
+    if (vk) {
+      |  subeq PC, RB, #0x20000
+      |1:
+    } else {
+      |1:
+      |  subne PC, RB, #0x20000
+    }
+    |2:
+    |  ins_next
+    |
+    |3:  // CARG12 is not an integer.
+    |.if FFI
+    |  bhi >7
+    |.else
+    if (!vk) {
+      |  subhi PC, RB, #0x20000
+    }
+    |  bhi <2
+    |.endif
+    |.if FPU
+    |  checktp CARG4, LJ_TISNUM
+    |  vmov s4, CARG3
+    |   vldr d0, [RA]
+    |  vldrlo d1, [RC]
+    |  vcvths.f64.s32 d1, s4
+    |  b >5
+    |4:  // CARG1 is an integer, d1 is a number.
+    |  vmov s4, CARG1
+    |   vldr d1, [RC]
+    |  vcvt.f64.s32 d0, s4
+    |5:  // d0 and d1 are numbers.
+    |  vcmp.f64 d0, d1
+    |  vmrs
+    if (vk) {
+      |  subeq PC, RB, #0x20000
+    } else {
+      |  subne PC, RB, #0x20000
+    }
+    |  b <2
+    |.else
+    |  // CARG12 is a number.
+    |  checktp CARG4, LJ_TISNUM
+    |  movlo RA, RB			// Save RB.
+    |  blo >5
+    |  // CARG12 is a number, CARG3 is an integer.
+    |  mov CARG1, CARG3
+    |  mov RC, RA
+    |4:  // CARG1 is an integer, CARG34 is a number.
+    |  mov RA, RB			// Save RB.
+    |  bl extern __aeabi_i2d
+    |  ldrd CARG34, [RC]		// Restore other operand.
+    |5:  // CARG12 and CARG34 are numbers.
+    |  bl extern __aeabi_cdcmpeq
+    if (vk) {
+      |  subeq PC, RA, #0x20000
+    } else {
+      |  subne PC, RA, #0x20000
+    }
+    |  b <2
+    |.endif
+    |
+    |.if FFI
+    |7:
+    |  checktp CARG2, LJ_TCDATA
+    |  bne <1
+    |  b ->vmeta_equal_cd
+    |.endif
+    break;
+
+  case BC_ISEQP: case BC_ISNEP:
+    vk = op == BC_ISEQP;
+    |  // RA = src*8, RC = primitive_type (~), JMP with RC = target
+    |  ldrd CARG12, [BASE, RA]
+    |   ldrh RB, [PC, #2]
+    |   add PC, PC, #4
+    |  mvn RC, RC
+    |   add RB, PC, RB, lsl #2
+    |.if FFI
+    |  checktp CARG2, LJ_TCDATA
+    |  beq ->vmeta_equal_cd
+    |.endif
+    |  cmp CARG2, RC
+    if (vk) {
+      |  subeq PC, RB, #0x20000
+    } else {
+      |  subne PC, RB, #0x20000
+    }
+    |  ins_next
+    break;
+
+  /* -- Unary test and copy ops ------------------------------------------- */
+
+  case BC_ISTC: case BC_ISFC: case BC_IST: case BC_ISF:
+    |  // RA = dst*8 or unused, RC = src, JMP with RC = target
+    |  add RC, BASE, RC, lsl #3
+    |   ldrh RB, [PC, #2]
+    |  ldrd CARG12, [RC]
+    |   add PC, PC, #4
+    |   add RB, PC, RB, lsl #2
+    |  checktp CARG2, LJ_TTRUE
+    if (op == BC_ISTC || op == BC_IST) {
+      |  subls PC, RB, #0x20000
+      if (op == BC_ISTC) {
+	|  strdls CARG12, [BASE, RA]
+      }
+    } else {
+      |  subhi PC, RB, #0x20000
+      if (op == BC_ISFC) {
+	|  strdhi CARG12, [BASE, RA]
+      }
+    }
+    |  ins_next
+    break;
+
+  case BC_ISTYPE:
+    |  // RA = src*8, RC = -type
+    |  ldrd CARG12, [BASE, RA]
+    |   ins_next1
+    |  cmn CARG2, RC
+    |   ins_next2
+    |  bne ->vmeta_istype
+    |   ins_next3
+    break;
+  case BC_ISNUM:
+    |  // RA = src*8, RC = -(TISNUM-1)
+    |  ldrd CARG12, [BASE, RA]
+    |   ins_next1
+    |  checktp CARG2, LJ_TISNUM
+    |   ins_next2
+    |  bhs ->vmeta_istype
+    |   ins_next3
+    break;
+
+  /* -- Unary ops --------------------------------------------------------- */
+
+  case BC_MOV:
+    |  // RA = dst*8, RC = src
+    |  lsl RC, RC, #3
+    |   ins_next1
+    |  ldrd CARG12, [BASE, RC]
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    break;
+  case BC_NOT:
+    |  // RA = dst*8, RC = src
+    |  add RC, BASE, RC, lsl #3
+    |   ins_next1
+    |  ldr CARG1, [RC, #4]
+    |   add RA, BASE, RA
+    |   ins_next2
+    |  checktp CARG1, LJ_TTRUE
+    |  mvnls CARG2, #~LJ_TFALSE
+    |  mvnhi CARG2, #~LJ_TTRUE
+    |  str CARG2, [RA, #4]
+    |   ins_next3
+    break;
+  case BC_UNM:
+    |  // RA = dst*8, RC = src
+    |  lsl RC, RC, #3
+    |  ldrd CARG12, [BASE, RC]
+    |   ins_next1
+    |   ins_next2
+    |  checktp CARG2, LJ_TISNUM
+    |  bhi ->vmeta_unm
+    |  eorne CARG2, CARG2, #0x80000000
+    |  bne >5
+    |  rsbseq CARG1, CARG1, #0
+    |  ldrdvs CARG12, >9
+    |5:
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    |
+    |.align 8
+    |9:
+    |  .long 0x00000000, 0x41e00000	// 2^31.
+    break;
+  case BC_LEN:
+    |  // RA = dst*8, RC = src
+    |  lsl RC, RC, #3
+    |  ldrd CARG12, [BASE, RC]
+    |  checkstr CARG2, >2
+    |  ldr CARG1, STR:CARG1->len
+    |1:
+    |  mvn CARG2, #~LJ_TISNUM
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    |2:
+    |  checktab CARG2, ->vmeta_len
+#if LJ_52
+    |  ldr TAB:CARG3, TAB:CARG1->metatable
+    |  cmp TAB:CARG3, #0
+    |  bne >9
+    |3:
+#endif
+    |->BC_LEN_Z:
+    |  .IOS mov RC, BASE
+    |  bl extern lj_tab_len		// (GCtab *t)
+    |  // Returns uint32_t (but less than 2^31).
+    |  .IOS mov BASE, RC
+    |  b <1
+#if LJ_52
+    |9:
+    |  ldrb CARG4, TAB:CARG3->nomm
+    |  tst CARG4, #1<<MM_len
+    |  bne <3				// 'no __len' flag set: done.
+    |  b ->vmeta_len
+#endif
+    break;
+
+  /* -- Binary ops -------------------------------------------------------- */
+
+    |.macro ins_arithcheck, cond, ncond, target
+    ||if (vk == 1) {
+    |   cmn CARG4, #-LJ_TISNUM
+    |    cmn..cond CARG2, #-LJ_TISNUM
+    ||} else {
+    |   cmn CARG2, #-LJ_TISNUM
+    |    cmn..cond CARG4, #-LJ_TISNUM
+    ||}
+    |  b..ncond target
+    |.endmacro
+    |.macro ins_arithcheck_int, target
+    |  ins_arithcheck eq, ne, target
+    |.endmacro
+    |.macro ins_arithcheck_num, target
+    |  ins_arithcheck lo, hs, target
+    |.endmacro
+    |
+    |.macro ins_arithpre
+    |  decode_RB8 RB, INS
+    |   decode_RC8 RC, INS
+    |  // RA = dst*8, RB = src1*8, RC = src2*8 | num_const*8
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    ||switch (vk) {
+    ||case 0:
+    |   .if FPU
+    |   ldrd CARG12, [RB, BASE]!
+    |    ldrd CARG34, [RC, KBASE]!
+    |   .else
+    |   ldrd CARG12, [BASE, RB]
+    |    ldrd CARG34, [KBASE, RC]
+    |   .endif
+    ||  break;
+    ||case 1:
+    |   .if FPU
+    |   ldrd CARG34, [RB, BASE]!
+    |    ldrd CARG12, [RC, KBASE]!
+    |   .else
+    |   ldrd CARG34, [BASE, RB]
+    |    ldrd CARG12, [KBASE, RC]
+    |   .endif
+    ||  break;
+    ||default:
+    |   .if FPU
+    |   ldrd CARG12, [RB, BASE]!
+    |    ldrd CARG34, [RC, BASE]!
+    |   .else
+    |   ldrd CARG12, [BASE, RB]
+    |    ldrd CARG34, [BASE, RC]
+    |   .endif
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro ins_arithpre_fpu, reg1, reg2
+    |.if FPU
+    ||if (vk == 1) {
+    |  vldr reg2, [RB]
+    |  vldr reg1, [RC]
+    ||} else {
+    |  vldr reg1, [RB]
+    |  vldr reg2, [RC]
+    ||}
+    |.endif
+    |.endmacro
+    |
+    |.macro ins_arithpost_fpu, reg
+    |   ins_next1
+    |  add RA, BASE, RA
+    |   ins_next2
+    |  vstr reg, [RA]
+    |   ins_next3
+    |.endmacro
+    |
+    |.macro ins_arithfallback, ins
+    ||switch (vk) {
+    ||case 0:
+    |   ins ->vmeta_arith_vn
+    ||  break;
+    ||case 1:
+    |   ins ->vmeta_arith_nv
+    ||  break;
+    ||default:
+    |   ins ->vmeta_arith_vv
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro ins_arithdn, intins, fpins, fpcall
+    |  ins_arithpre
+    |.if "intins" ~= "vm_modi" and not FPU
+    |   ins_next1
+    |.endif
+    |  ins_arithcheck_int >5
+    |.if "intins" == "smull"
+    |  smull CARG1, RC, CARG3, CARG1
+    |  cmp RC, CARG1, asr #31
+    |  ins_arithfallback bne
+    |.elif "intins" == "vm_modi"
+    |  movs CARG2, CARG3
+    |  ins_arithfallback beq
+    |  bl ->vm_modi
+    |  mvn CARG2, #~LJ_TISNUM
+    |.else
+    |  intins CARG1, CARG1, CARG3
+    |  ins_arithfallback bvs
+    |.endif
+    |4:
+    |.if "intins" == "vm_modi" or FPU
+    |   ins_next1
+    |.endif
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    |5:  // FP variant.
+    |  ins_arithpre_fpu d6, d7
+    |  ins_arithfallback ins_arithcheck_num
+    |.if FPU
+    |.if "intins" == "vm_modi"
+    |  bl fpcall
+    |.else
+    |  fpins d6, d6, d7
+    |.endif
+    |  ins_arithpost_fpu d6
+    |.else
+    |  bl fpcall
+    |.if "intins" ~= "vm_modi"
+    |  ins_next1
+    |.endif
+    |  b <4
+    |.endif
+    |.endmacro
+    |
+    |.macro ins_arithfp, fpins, fpcall
+    |  ins_arithpre
+    |.if "fpins" ~= "extern" or HFABI
+    |  ins_arithpre_fpu d0, d1
+    |.endif
+    |  ins_arithfallback ins_arithcheck_num
+    |.if "fpins" == "extern"
+    |  .IOS mov RC, BASE
+    |  bl fpcall
+    |  .IOS mov BASE, RC
+    |.elif FPU
+    |  fpins d0, d0, d1
+    |.else
+    |  bl fpcall
+    |.endif
+    |.if ("fpins" ~= "extern" or HFABI) and FPU
+    |  ins_arithpost_fpu d0
+    |.else
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    |.endif
+    |.endmacro
+
+  case BC_ADDVN: case BC_ADDNV: case BC_ADDVV:
+    |  ins_arithdn adds, vadd.f64, extern __aeabi_dadd
+    break;
+  case BC_SUBVN: case BC_SUBNV: case BC_SUBVV:
+    |  ins_arithdn subs, vsub.f64, extern __aeabi_dsub
+    break;
+  case BC_MULVN: case BC_MULNV: case BC_MULVV:
+    |  ins_arithdn smull, vmul.f64, extern __aeabi_dmul
+    break;
+  case BC_DIVVN: case BC_DIVNV: case BC_DIVVV:
+    |  ins_arithfp vdiv.f64, extern __aeabi_ddiv
+    break;
+  case BC_MODVN: case BC_MODNV: case BC_MODVV:
+    |  ins_arithdn vm_modi, vm_mod, ->vm_mod
+    break;
+  case BC_POW:
+    |  // NYI: (partial) integer arithmetic.
+    |  ins_arithfp extern, extern pow
+    break;
+
+  case BC_CAT:
+    |  decode_RB8 RC, INS
+    |   decode_RC8 RB, INS
+    |  // RA = dst*8, RC = src_start*8, RB = src_end*8  (note: RB/RC swapped!)
+    |  sub CARG3, RB, RC
+    |   str BASE, L->base
+    |  add CARG2, BASE, RB
+    |->BC_CAT_Z:
+    |  // RA = dst*8, RC = src_start*8, CARG2 = top-1
+    |  mov CARG1, L
+    |   str PC, SAVE_PC
+    |  lsr CARG3, CARG3, #3
+    |  bl extern lj_meta_cat		// (lua_State *L, TValue *top, int left)
+    |  // Returns NULL (finished) or TValue * (metamethod).
+    |  ldr BASE, L->base
+    |  cmp CRET1, #0
+    |  bne ->vmeta_binop
+    |  ldrd CARG34, [BASE, RC]
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG34, [BASE, RA]		// Copy result to RA.
+    |   ins_next3
+    break;
+
+  /* -- Constant ops ------------------------------------------------------ */
+
+  case BC_KSTR:
+    |  // RA = dst*8, RC = str_const (~)
+    |  mvn RC, RC
+    |   ins_next1
+    |  ldr CARG1, [KBASE, RC, lsl #2]
+    |  mvn CARG2, #~LJ_TSTR
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    break;
+  case BC_KCDATA:
+    |.if FFI
+    |  // RA = dst*8, RC = cdata_const (~)
+    |  mvn RC, RC
+    |   ins_next1
+    |  ldr CARG1, [KBASE, RC, lsl #2]
+    |  mvn CARG2, #~LJ_TCDATA
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    |.endif
+    break;
+  case BC_KSHORT:
+    |  // RA = dst*8, (RC = int16_literal)
+    |  mov CARG1, INS, asr #16			// Refetch sign-extended reg.
+    |  mvn CARG2, #~LJ_TISNUM
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    break;
+  case BC_KNUM:
+    |  // RA = dst*8, RC = num_const
+    |  lsl RC, RC, #3
+    |   ins_next1
+    |  ldrd CARG12, [KBASE, RC]
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    break;
+  case BC_KPRI:
+    |  // RA = dst*8, RC = primitive_type (~)
+    |  add RA, BASE, RA
+    |  mvn RC, RC
+    |   ins_next1
+    |   ins_next2
+    |  str RC, [RA, #4]
+    |   ins_next3
+    break;
+  case BC_KNIL:
+    |  // RA = base*8, RC = end
+    |  add RA, BASE, RA
+    |   add RC, BASE, RC, lsl #3
+    |  mvn CARG1, #~LJ_TNIL
+    |  str CARG1, [RA, #4]
+    |   add RA, RA, #8
+    |1:
+    |  str CARG1, [RA, #4]
+    |  cmp RA, RC
+    |   add RA, RA, #8
+    |  blt <1
+    |  ins_next_
+    break;
+
+  /* -- Upvalue and function ops ------------------------------------------ */
+
+  case BC_UGET:
+    |  // RA = dst*8, RC = uvnum
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   lsl RC, RC, #2
+    |   add RC, RC, #offsetof(GCfuncL, uvptr)
+    |  ldr UPVAL:CARG2, [LFUNC:CARG2, RC]
+    |  ldr CARG2, UPVAL:CARG2->v
+    |  ldrd CARG34, [CARG2]
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG34, [BASE, RA]
+    |   ins_next3
+    break;
+  case BC_USETV:
+    |  // RA = uvnum*8, RC = src
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   lsr RA, RA, #1
+    |   add RA, RA, #offsetof(GCfuncL, uvptr)
+    |    lsl RC, RC, #3
+    |  ldr UPVAL:CARG2, [LFUNC:CARG2, RA]
+    |    ldrd CARG34, [BASE, RC]
+    |  ldrb RB, UPVAL:CARG2->marked
+    |  ldrb RC, UPVAL:CARG2->closed
+    |    ldr CARG2, UPVAL:CARG2->v
+    |  tst RB, #LJ_GC_BLACK		// isblack(uv)
+    |   add RB, CARG4, #-LJ_TISGCV
+    |  cmpne RC, #0
+    |   strd CARG34, [CARG2]
+    |  bne >2				// Upvalue is closed and black?
+    |1:
+    |   ins_next
+    |
+    |2:  // Check if new value is collectable.
+    |  cmn RB, #-(LJ_TNUMX - LJ_TISGCV)
+    |   ldrbhi RC, GCOBJ:CARG3->gch.marked
+    |  bls <1				// tvisgcv(v)
+    |    sub CARG1, DISPATCH, #-GG_DISP2G
+    |   tst RC, #LJ_GC_WHITES
+    |  // Crossed a write barrier. Move the barrier forward.
+    |.if IOS
+    |  beq <1
+    |  mov RC, BASE
+    |  bl extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |  mov BASE, RC
+    |.else
+    |  blne extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |.endif
+    |  b <1
+    break;
+  case BC_USETS:
+    |  // RA = uvnum*8, RC = str_const (~)
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   lsr RA, RA, #1
+    |   add RA, RA, #offsetof(GCfuncL, uvptr)
+    |    mvn RC, RC
+    |  ldr UPVAL:CARG2, [LFUNC:CARG2, RA]
+    |    ldr STR:CARG3, [KBASE, RC, lsl #2]
+    |  ldrb RB, UPVAL:CARG2->marked
+    |     ldrb RC, UPVAL:CARG2->closed
+    |   ldr CARG2, UPVAL:CARG2->v
+    |    mvn CARG4, #~LJ_TSTR
+    |  tst RB, #LJ_GC_BLACK		// isblack(uv)
+    |    ldrb RB, STR:CARG3->marked
+    |   strd CARG34, [CARG2]
+    |  bne >2
+    |1:
+    |   ins_next
+    |
+    |2:  // Check if string is white and ensure upvalue is closed.
+    |  tst RB, #LJ_GC_WHITES		// iswhite(str)
+    |  cmpne RC, #0
+    |   sub CARG1, DISPATCH, #-GG_DISP2G
+    |  // Crossed a write barrier. Move the barrier forward.
+    |.if IOS
+    |  beq <1
+    |  mov RC, BASE
+    |  bl extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |  mov BASE, RC
+    |.else
+    |  blne extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |.endif
+    |  b <1
+    break;
+  case BC_USETN:
+    |  // RA = uvnum*8, RC = num_const
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   lsr RA, RA, #1
+    |   add RA, RA, #offsetof(GCfuncL, uvptr)
+    |    lsl RC, RC, #3
+    |  ldr UPVAL:CARG2, [LFUNC:CARG2, RA]
+    |    ldrd CARG34, [KBASE, RC]
+    |  ldr CARG2, UPVAL:CARG2->v
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG34, [CARG2]
+    |   ins_next3
+    break;
+  case BC_USETP:
+    |  // RA = uvnum*8, RC = primitive_type (~)
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   lsr RA, RA, #1
+    |   add RA, RA, #offsetof(GCfuncL, uvptr)
+    |  ldr UPVAL:CARG2, [LFUNC:CARG2, RA]
+    |   mvn RC, RC
+    |  ldr CARG2, UPVAL:CARG2->v
+    |   ins_next1
+    |   ins_next2
+    |  str RC, [CARG2, #4]
+    |   ins_next3
+    break;
+
+  case BC_UCLO:
+    |  // RA = level*8, RC = target
+    |  ldr CARG3, L->openupval
+    |   add RC, PC, RC, lsl #2
+    |   str BASE, L->base
+    |  cmp CARG3, #0
+    |   sub PC, RC, #0x20000
+    |  beq >1
+    |   mov CARG1, L
+    |   add CARG2, BASE, RA
+    |  bl extern lj_func_closeuv	// (lua_State *L, TValue *level)
+    |  ldr BASE, L->base
+    |1:
+    |  ins_next
+    break;
+
+  case BC_FNEW:
+    |  // RA = dst*8, RC = proto_const (~) (holding function prototype)
+    |  mvn RC, RC
+    |   str BASE, L->base
+    |  ldr CARG2, [KBASE, RC, lsl #2]
+    |   str PC, SAVE_PC
+    |  ldr CARG3, [BASE, FRAME_FUNC]
+    |   mov CARG1, L
+    |  // (lua_State *L, GCproto *pt, GCfuncL *parent)
+    |  bl extern lj_func_newL_gc
+    |  // Returns GCfuncL *.
+    |  ldr BASE, L->base
+    |  mvn CARG2, #~LJ_TFUNC
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    break;
+
+  /* -- Table ops --------------------------------------------------------- */
+
+  case BC_TNEW:
+  case BC_TDUP:
+    |  // RA = dst*8, RC = (hbits|asize) | tab_const (~)
+    if (op == BC_TDUP) {
+      |  mvn RC, RC
+    }
+    |  ldr CARG3, [DISPATCH, #DISPATCH_GL(gc.total)]
+    |   ldr CARG4, [DISPATCH, #DISPATCH_GL(gc.threshold)]
+    |    str BASE, L->base
+    |    str PC, SAVE_PC
+    |  cmp CARG3, CARG4
+    |   mov CARG1, L
+    |  bhs >5
+    |1:
+    if (op == BC_TNEW) {
+      |  lsl CARG2, RC, #21
+      |   lsr CARG3, RC, #11
+      |  asr RC, CARG2, #21
+      |  lsr CARG2, CARG2, #21
+      |  cmn RC, #1
+      |  addeq CARG2, CARG2, #2
+      |  bl extern lj_tab_new  // (lua_State *L, int32_t asize, uint32_t hbits)
+      |  // Returns GCtab *.
+    } else {
+      |  ldr CARG2, [KBASE, RC, lsl #2]
+      |  bl extern lj_tab_dup  // (lua_State *L, Table *kt)
+      |  // Returns GCtab *.
+    }
+    |  ldr BASE, L->base
+    |  mvn CARG2, #~LJ_TTAB
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    |5:
+    |  bl extern lj_gc_step_fixtop  // (lua_State *L)
+    |  mov CARG1, L
+    |  b <1
+    break;
+
+  case BC_GGET:
+    |  // RA = dst*8, RC = str_const (~)
+  case BC_GSET:
+    |  // RA = dst*8, RC = str_const (~)
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   mvn RC, RC
+    |  ldr TAB:CARG1, LFUNC:CARG2->env
+    |   ldr STR:RC, [KBASE, RC, lsl #2]
+    if (op == BC_GGET) {
+      |  b ->BC_TGETS_Z
+    } else {
+      |  b ->BC_TSETS_Z
+    }
+    break;
+
+  case BC_TGETV:
+    |  decode_RB8 RB, INS
+    |   decode_RC8 RC, INS
+    |  // RA = dst*8, RB = table*8, RC = key*8
+    |  ldrd TAB:CARG12, [BASE, RB]
+    |   ldrd CARG34, [BASE, RC]
+    |  checktab CARG2, ->vmeta_tgetv  // STALL: load CARG12.
+    |   checktp CARG4, LJ_TISNUM	// Integer key?
+    |  ldreq CARG4, TAB:CARG1->array
+    |    ldreq CARG2, TAB:CARG1->asize
+    |   bne >9
+    |
+    |  add CARG4, CARG4, CARG3, lsl #3
+    |    cmp CARG3, CARG2		// In array part?
+    |  ldrdlo CARG34, [CARG4]
+    |    bhs ->vmeta_tgetv
+    |   ins_next1  // Overwrites RB!
+    |  checktp CARG4, LJ_TNIL
+    |  beq >5
+    |1:
+    |   ins_next2
+    |  strd CARG34, [BASE, RA]
+    |   ins_next3
+    |
+    |5:  // Check for __index if table value is nil.
+    |  ldr TAB:CARG2, TAB:CARG1->metatable
+    |  cmp TAB:CARG2, #0
+    |  beq <1				// No metatable: done.
+    |  ldrb CARG2, TAB:CARG2->nomm
+    |  tst CARG2, #1<<MM_index
+    |  bne <1				// 'no __index' flag set: done.
+    |  decode_RB8 RB, INS		// Restore RB.
+    |  b ->vmeta_tgetv
+    |
+    |9:
+    |  checktp CARG4, LJ_TSTR		// String key?
+    |   moveq STR:RC, CARG3
+    |  beq ->BC_TGETS_Z
+    |  b ->vmeta_tgetv
+    break;
+  case BC_TGETS:
+    |  decode_RB8 RB, INS
+    |   and RC, RC, #255
+    |  // RA = dst*8, RB = table*8, RC = str_const (~)
+    |  ldrd CARG12, [BASE, RB]
+    |   mvn RC, RC
+    |   ldr STR:RC, [KBASE, RC, lsl #2]  // STALL: early RC.
+    |  checktab CARG2, ->vmeta_tgets1
+    |->BC_TGETS_Z:
+    |  // (TAB:RB =) TAB:CARG1 = GCtab *, STR:RC = GCstr *, RA = dst*8
+    |  ldr CARG3, TAB:CARG1->hmask
+    |   ldr CARG4, STR:RC->sid
+    |    ldr NODE:INS, TAB:CARG1->node
+    |     mov TAB:RB, TAB:CARG1
+    |  and CARG3, CARG3, CARG4			// idx = str->sid & tab->hmask
+    |  add CARG3, CARG3, CARG3, lsl #1
+    |    add NODE:INS, NODE:INS, CARG3, lsl #3	// node = tab->node + idx*3*8
+    |1:
+    |  ldrd CARG12, NODE:INS->key  // STALL: early NODE:INS.
+    |   ldrd CARG34, NODE:INS->val
+    |    ldr NODE:INS, NODE:INS->next
+    |  checktp CARG2, LJ_TSTR
+    |  cmpeq CARG1, STR:RC
+    |  bne >4
+    |   checktp CARG4, LJ_TNIL
+    |   beq >5
+    |3:
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG34, [BASE, RA]
+    |   ins_next3
+    |
+    |4:  // Follow hash chain.
+    |  cmp NODE:INS, #0
+    |  bne <1
+    |  // End of hash chain: key not found, nil result.
+    |
+    |5:  // Check for __index if table value is nil.
+    |  ldr TAB:CARG1, TAB:RB->metatable
+    |   mov CARG3, #0  // Optional clear of undef. value (during load stall).
+    |   mvn CARG4, #~LJ_TNIL
+    |  cmp TAB:CARG1, #0
+    |  beq <3				// No metatable: done.
+    |  ldrb CARG2, TAB:CARG1->nomm
+    |  tst CARG2, #1<<MM_index
+    |  bne <3				// 'no __index' flag set: done.
+    |  b ->vmeta_tgets
+    break;
+  case BC_TGETB:
+    |  decode_RB8 RB, INS
+    |   and RC, RC, #255
+    |  // RA = dst*8, RB = table*8, RC = index
+    |  ldrd CARG12, [BASE, RB]
+    |  checktab CARG2, ->vmeta_tgetb  // STALL: load CARG12.
+    |   ldr CARG3, TAB:CARG1->asize
+    |  ldr CARG4, TAB:CARG1->array
+    |  lsl CARG2, RC, #3
+    |   cmp RC, CARG3
+    |  ldrdlo CARG34, [CARG4, CARG2]
+    |   bhs ->vmeta_tgetb
+    |   ins_next1  // Overwrites RB!
+    |  checktp CARG4, LJ_TNIL
+    |  beq >5
+    |1:
+    |   ins_next2
+    |  strd CARG34, [BASE, RA]
+    |   ins_next3
+    |
+    |5:  // Check for __index if table value is nil.
+    |  ldr TAB:CARG2, TAB:CARG1->metatable
+    |  cmp TAB:CARG2, #0
+    |  beq <1				// No metatable: done.
+    |  ldrb CARG2, TAB:CARG2->nomm
+    |  tst CARG2, #1<<MM_index
+    |  bne <1				// 'no __index' flag set: done.
+    |  b ->vmeta_tgetb
+    break;
+  case BC_TGETR:
+    |  decode_RB8 RB, INS
+    |   decode_RC8 RC, INS
+    |  // RA = dst*8, RB = table*8, RC = key*8
+    |  ldr TAB:CARG1, [BASE, RB]
+    |   ldr CARG2, [BASE, RC]
+    |  ldr CARG4, TAB:CARG1->array
+    |    ldr CARG3, TAB:CARG1->asize
+    |  add CARG4, CARG4, CARG2, lsl #3
+    |    cmp CARG2, CARG3		// In array part?
+    |    bhs ->vmeta_tgetr
+    |  ldrd CARG12, [CARG4]
+    |->BC_TGETR_Z:
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG12, [BASE, RA]
+    |   ins_next3
+    break;
+
+  case BC_TSETV:
+    |  decode_RB8 RB, INS
+    |   decode_RC8 RC, INS
+    |  // RA = src*8, RB = table*8, RC = key*8
+    |  ldrd TAB:CARG12, [BASE, RB]
+    |   ldrd CARG34, [BASE, RC]
+    |  checktab CARG2, ->vmeta_tsetv  // STALL: load CARG12.
+    |   checktp CARG4, LJ_TISNUM	// Integer key?
+    |  ldreq CARG2, TAB:CARG1->array
+    |    ldreq CARG4, TAB:CARG1->asize
+    |   bne >9
+    |
+    |  add CARG2, CARG2, CARG3, lsl #3
+    |    cmp CARG3, CARG4		// In array part?
+    |  ldrlo INS, [CARG2, #4]
+    |    bhs ->vmeta_tsetv
+    |   ins_next1  // Overwrites RB!
+    |  checktp INS, LJ_TNIL
+    |  ldrb INS, TAB:CARG1->marked
+    |   ldrd CARG34, [BASE, RA]
+    |  beq >5
+    |1:
+    |  tst INS, #LJ_GC_BLACK		// isblack(table)
+    |   strd CARG34, [CARG2]
+    |  bne >7
+    |2:
+    |   ins_next2
+    |   ins_next3
+    |
+    |5:  // Check for __newindex if previous value is nil.
+    |  ldr TAB:RA, TAB:CARG1->metatable
+    |  cmp TAB:RA, #0
+    |  beq <1				// No metatable: done.
+    |  ldrb RA, TAB:RA->nomm
+    |  tst RA, #1<<MM_newindex
+    |  bne <1				// 'no __newindex' flag set: done.
+    |  ldr INS, [PC, #-4]		// Restore RA and RB.
+    |  decode_RB8 RB, INS
+    |  decode_RA8 RA, INS
+    |  b ->vmeta_tsetv
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:CARG1, INS, CARG3
+    |  b <2
+    |
+    |9:
+    |  checktp CARG4, LJ_TSTR		// String key?
+    |   moveq STR:RC, CARG3
+    |  beq ->BC_TSETS_Z
+    |  b ->vmeta_tsetv
+    break;
+  case BC_TSETS:
+    |  decode_RB8 RB, INS
+    |   and RC, RC, #255
+    |  // RA = src*8, RB = table*8, RC = str_const (~)
+    |  ldrd CARG12, [BASE, RB]
+    |   mvn RC, RC
+    |   ldr STR:RC, [KBASE, RC, lsl #2]  // STALL: early RC.
+    |  checktab CARG2, ->vmeta_tsets1
+    |->BC_TSETS_Z:
+    |  // (TAB:RB =) TAB:CARG1 = GCtab *, STR:RC = GCstr *, RA = dst*8
+    |  ldr CARG3, TAB:CARG1->hmask
+    |   ldr CARG4, STR:RC->sid
+    |    ldr NODE:INS, TAB:CARG1->node
+    |     mov TAB:RB, TAB:CARG1
+    |  and CARG3, CARG3, CARG4			// idx = str->sid & tab->hmask
+    |  add CARG3, CARG3, CARG3, lsl #1
+    |   mov CARG4, #0
+    |    add NODE:INS, NODE:INS, CARG3, lsl #3	// node = tab->node + idx*3*8
+    |   strb CARG4, TAB:RB->nomm		// Clear metamethod cache.
+    |1:
+    |  ldrd CARG12, NODE:INS->key
+    |   ldr CARG4, NODE:INS->val.it
+    |    ldr NODE:CARG3, NODE:INS->next
+    |  checktp CARG2, LJ_TSTR
+    |  cmpeq CARG1, STR:RC
+    |  bne >5
+    |  ldrb CARG2, TAB:RB->marked
+    |   checktp CARG4, LJ_TNIL		// Key found, but nil value?
+    |    ldrd CARG34, [BASE, RA]
+    |   beq >4
+    |2:
+    |  tst CARG2, #LJ_GC_BLACK		// isblack(table)
+    |    strd CARG34, NODE:INS->val
+    |  bne >7
+    |3:
+    |   ins_next
+    |
+    |4:  // Check for __newindex if previous value is nil.
+    |  ldr TAB:CARG1, TAB:RB->metatable
+    |  cmp TAB:CARG1, #0
+    |  beq <2				// No metatable: done.
+    |  ldrb CARG1, TAB:CARG1->nomm
+    |  tst CARG1, #1<<MM_newindex
+    |  bne <2				// 'no __newindex' flag set: done.
+    |  b ->vmeta_tsets
+    |
+    |5:  // Follow hash chain.
+    |  movs NODE:INS, NODE:CARG3
+    |  bne <1
+    |  // End of hash chain: key not found, add a new one.
+    |
+    |  // But check for __newindex first.
+    |  ldr TAB:CARG1, TAB:RB->metatable
+    |   mov CARG3, TMPDp
+    |   str PC, SAVE_PC
+    |  cmp TAB:CARG1, #0		// No metatable: continue.
+    |   str BASE, L->base
+    |  ldrbne CARG2, TAB:CARG1->nomm
+    |   mov CARG1, L
+    |  beq >6
+    |  tst CARG2, #1<<MM_newindex
+    |  beq ->vmeta_tsets		// 'no __newindex' flag NOT set: check.
+    |6:
+    |  mvn CARG4, #~LJ_TSTR
+    |   str STR:RC, TMPDlo
+    |   mov CARG2, TAB:RB
+    |  str CARG4, TMPDhi
+    |  bl extern lj_tab_newkey		// (lua_State *L, GCtab *t, TValue *k)
+    |  // Returns TValue *.
+    |  ldr BASE, L->base
+    |  ldrd CARG34, [BASE, RA]
+    |  strd CARG34, [CRET1]
+    |  b <3				// No 2nd write barrier needed.
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, CARG2, CARG3
+    |  b <3
+    break;
+  case BC_TSETB:
+    |  decode_RB8 RB, INS
+    |   and RC, RC, #255
+    |  // RA = src*8, RB = table*8, RC = index
+    |  ldrd CARG12, [BASE, RB]
+    |  checktab CARG2, ->vmeta_tsetb  // STALL: load CARG12.
+    |   ldr CARG3, TAB:CARG1->asize
+    |  ldr RB, TAB:CARG1->array
+    |  lsl CARG2, RC, #3
+    |   cmp RC, CARG3
+    |  ldrdlo CARG34, [CARG2, RB]!
+    |   bhs ->vmeta_tsetb
+    |   ins_next1  // Overwrites RB!
+    |  checktp CARG4, LJ_TNIL
+    |  ldrb INS, TAB:CARG1->marked
+    |   ldrd CARG34, [BASE, RA]
+    |  beq >5
+    |1:
+    |  tst INS, #LJ_GC_BLACK		// isblack(table)
+    |    strd CARG34, [CARG2]
+    |  bne >7
+    |2:
+    |   ins_next2
+    |   ins_next3
+    |
+    |5:  // Check for __newindex if previous value is nil.
+    |  ldr TAB:RA, TAB:CARG1->metatable
+    |  cmp TAB:RA, #0
+    |  beq <1				// No metatable: done.
+    |  ldrb RA, TAB:RA->nomm
+    |  tst RA, #1<<MM_newindex
+    |  bne <1				// 'no __newindex' flag set: done.
+    |  ldr INS, [PC, #-4]		// Restore INS.
+    |  decode_RA8 RA, INS
+    |  b ->vmeta_tsetb
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:CARG1, INS, CARG3
+    |  b <2
+    break;
+  case BC_TSETR:
+    |  decode_RB8 RB, INS
+    |   decode_RC8 RC, INS
+    |  // RA = src*8, RB = table*8, RC = key*8
+    |  ldr TAB:CARG2, [BASE, RB]
+    |   ldr CARG3, [BASE, RC]
+    |     ldrb INS, TAB:CARG2->marked
+    |  ldr CARG1, TAB:CARG2->array
+    |    ldr CARG4, TAB:CARG2->asize
+    |     tst INS, #LJ_GC_BLACK		// isblack(table)
+    |  add CARG1, CARG1, CARG3, lsl #3
+    |     bne >7
+    |2:
+    |    cmp CARG3, CARG4		// In array part?
+    |    bhs ->vmeta_tsetr
+    |->BC_TSETR_Z:
+    |  ldrd CARG34, [BASE, RA]
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG34, [CARG1]
+    |   ins_next3
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, INS, RB
+    |  b <2
+    break;
+
+  case BC_TSETM:
+    |  // RA = base*8 (table at base-1), RC = num_const (start index)
+    |  add RA, BASE, RA
+    |1:
+    |   ldr RB, SAVE_MULTRES
+    |  ldr TAB:CARG2, [RA, #-8]		// Guaranteed to be a table.
+    |  ldr CARG1, [KBASE, RC, lsl #3]	// Integer constant is in lo-word.
+    |   subs RB, RB, #8
+    |  ldr CARG4, TAB:CARG2->asize
+    |   beq >4				// Nothing to copy?
+    |  add CARG3, CARG1, RB, lsr #3
+    |  cmp CARG3, CARG4
+    |   ldr CARG4, TAB:CARG2->array
+    |    add RB, RA, RB
+    |  bhi >5
+    |   add INS, CARG4, CARG1, lsl #3
+    |    ldrb CARG1, TAB:CARG2->marked
+    |3:  // Copy result slots to table.
+    |   ldrd CARG34, [RA], #8
+    |   strd CARG34, [INS], #8
+    |  cmp RA, RB
+    |  blo <3
+    |    tst CARG1, #LJ_GC_BLACK	// isblack(table)
+    |    bne >7
+    |4:
+    |  ins_next
+    |
+    |5:  // Need to resize array part.
+    |   str BASE, L->base
+    |  mov CARG1, L
+    |   str PC, SAVE_PC
+    |  bl extern lj_tab_reasize		// (lua_State *L, GCtab *t, int nasize)
+    |  // Must not reallocate the stack.
+    |  .IOS ldr BASE, L->base
+    |  b <1
+    |
+    |7:  // Possible table write barrier for any value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, CARG1, CARG3
+    |  b <4
+    break;
+
+  /* -- Calls and vararg handling ----------------------------------------- */
+
+  case BC_CALLM:
+    |  // RA = base*8, (RB = nresults+1,) RC = extra_nargs
+    |  ldr CARG1, SAVE_MULTRES
+    |  decode_RC8 NARGS8:RC, INS
+    |  add NARGS8:RC, NARGS8:RC, CARG1
+    |  b ->BC_CALL_Z
+    break;
+  case BC_CALL:
+    |  decode_RC8 NARGS8:RC, INS
+    |  // RA = base*8, (RB = nresults+1,) RC = (nargs+1)*8
+    |->BC_CALL_Z:
+    |  mov RB, BASE			// Save old BASE for vmeta_call.
+    |  ldrd CARG34, [BASE, RA]!
+    |   sub NARGS8:RC, NARGS8:RC, #8
+    |   add BASE, BASE, #8
+    |  checkfunc CARG4, ->vmeta_call
+    |  ins_call
+    break;
+
+  case BC_CALLMT:
+    |  // RA = base*8, (RB = 0,) RC = extra_nargs
+    |  ldr CARG1, SAVE_MULTRES
+    |  add NARGS8:RC, CARG1, RC, lsl #3
+    |  b ->BC_CALLT1_Z
+    break;
+  case BC_CALLT:
+    |  lsl NARGS8:RC, RC, #3
+    |  // RA = base*8, (RB = 0,) RC = (nargs+1)*8
+    |->BC_CALLT1_Z:
+    |  ldrd LFUNC:CARG34, [RA, BASE]!
+    |   sub NARGS8:RC, NARGS8:RC, #8
+    |   add RA, RA, #8
+    |  checkfunc CARG4, ->vmeta_callt
+    |  ldr PC, [BASE, FRAME_PC]
+    |->BC_CALLT2_Z:
+    |   mov RB, #0
+    |   ldrb CARG4, LFUNC:CARG3->ffid
+    |  tst PC, #FRAME_TYPE
+    |  bne >7
+    |1:
+    |  str LFUNC:CARG3, [BASE, FRAME_FUNC]  // Copy function down, but keep PC.
+    |  cmp NARGS8:RC, #0
+    |  beq >3
+    |2:
+    |  ldrd CARG12, [RA, RB]
+    |   add INS, RB, #8
+    |   cmp INS, NARGS8:RC
+    |  strd CARG12, [BASE, RB]
+    |    mov RB, INS
+    |   bne <2
+    |3:
+    |  cmp CARG4, #1			// (> FF_C) Calling a fast function?
+    |  bhi >5
+    |4:
+    |  ins_callt
+    |
+    |5:  // Tailcall to a fast function with a Lua frame below.
+    |  ldr INS, [PC, #-4]
+    |  decode_RA8 RA, INS
+    |  sub CARG1, BASE, RA
+    |  ldr LFUNC:CARG1, [CARG1, #-16]
+    |  ldr CARG1, LFUNC:CARG1->field_pc
+    |  ldr KBASE, [CARG1, #PC2PROTO(k)]
+    |  b <4
+    |
+    |7:  // Tailcall from a vararg function.
+    |  eor PC, PC, #FRAME_VARG
+    |  tst PC, #FRAME_TYPEP		// Vararg frame below?
+    |  movne CARG4, #0			// Clear ffid if no Lua function below.
+    |  bne <1
+    |  sub BASE, BASE, PC
+    |  ldr PC, [BASE, FRAME_PC]
+    |  tst PC, #FRAME_TYPE
+    |  movne CARG4, #0			// Clear ffid if no Lua function below.
+    |  b <1
+    break;
+
+  case BC_ITERC:
+    |  // RA = base*8, (RB = nresults+1, RC = nargs+1 (2+1))
+    |  add RA, BASE, RA
+    |   mov RB, BASE			// Save old BASE for vmeta_call.
+    |  ldrd CARG34, [RA, #-16]
+    |   ldrd CARG12, [RA, #-8]
+    |    add BASE, RA, #8
+    |  strd CARG34, [RA, #8]		// Copy state.
+    |   strd CARG12, [RA, #16]		// Copy control var.
+    |  // STALL: locked CARG34.
+    |  ldrd LFUNC:CARG34, [RA, #-24]
+    |    mov NARGS8:RC, #16		// Iterators get 2 arguments.
+    |  // STALL: load CARG34.
+    |  strd LFUNC:CARG34, [RA]		// Copy callable.
+    |  checkfunc CARG4, ->vmeta_call
+    |  ins_call
+    break;
+
+  case BC_ITERN:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |->vm_IITERN:
+    |  // RA = base*8, (RB = nresults+1, RC = nargs+1 (2+1))
+    |  add RA, BASE, RA
+    |  ldr TAB:RB, [RA, #-16]
+    |  ldr CARG1, [RA, #-8]		// Get index from control var.
+    |  ldr INS, TAB:RB->asize
+    |   ldr CARG2, TAB:RB->array
+    |    add PC, PC, #4
+    |1:  // Traverse array part.
+    |  subs RC, CARG1, INS
+    |   add CARG3, CARG2, CARG1, lsl #3
+    |  bhs >5				// Index points after array part?
+    |   ldrd CARG34, [CARG3]
+    |   checktp CARG4, LJ_TNIL
+    |   addeq CARG1, CARG1, #1		// Skip holes in array part.
+    |   beq <1
+    |  ldrh RC, [PC, #-2]
+    |   mvn CARG2, #~LJ_TISNUM
+    |    strd CARG34, [RA, #8]
+    |  add RC, PC, RC, lsl #2
+    |    add RB, CARG1, #1
+    |   strd CARG12, [RA]
+    |  sub PC, RC, #0x20000
+    |    str RB, [RA, #-8]		// Update control var.
+    |3:
+    |  ins_next
+    |
+    |5:  // Traverse hash part.
+    |  ldr CARG4, TAB:RB->hmask
+    |   ldr NODE:RB, TAB:RB->node
+    |6:
+    |   add CARG1, RC, RC, lsl #1
+    |  cmp RC, CARG4			// End of iteration? Branch to ITERL+1.
+    |   add NODE:CARG3, NODE:RB, CARG1, lsl #3  // node = tab->node + idx*3*8
+    |  bhi <3
+    |   ldrd CARG12, NODE:CARG3->val
+    |   checktp CARG2, LJ_TNIL
+    |   add RC, RC, #1
+    |   beq <6				// Skip holes in hash part.
+    |  ldrh RB, [PC, #-2]
+    |   add RC, RC, INS
+    |    ldrd CARG34, NODE:CARG3->key
+    |   str RC, [RA, #-8]		// Update control var.
+    |   strd CARG12, [RA, #8]
+    |  add RC, PC, RB, lsl #2
+    |  sub PC, RC, #0x20000
+    |    strd CARG34, [RA]
+    |  b <3
+    break;
+
+  case BC_ISNEXT:
+    |  // RA = base*8, RC = target (points to ITERN)
+    |  add RA, BASE, RA
+    |     add RC, PC, RC, lsl #2
+    |  ldrd CFUNC:CARG12, [RA, #-24]
+    |   ldr CARG3, [RA, #-12]
+    |    ldr CARG4, [RA, #-4]
+    |  checktp CARG2, LJ_TFUNC
+    |  ldrbeq CARG1, CFUNC:CARG1->ffid
+    |   checktpeq CARG3, LJ_TTAB
+    |    checktpeq CARG4, LJ_TNIL
+    |  cmpeq CARG1, #FF_next_N
+    |     subeq PC, RC, #0x20000
+    |  bne >5
+    |   ins_next1
+    |   ins_next2
+    |  mov CARG1, #0
+    |  mvn CARG2, #~LJ_KEYINDEX
+    |  strd CARG1, [RA, #-8]		// Initialize control var.
+    |1:
+    |   ins_next3
+    |5:  // Despecialize bytecode if any of the checks fail.
+    |  mov CARG1, #BC_JMP
+    |   mov OP, #BC_ITERC
+    |  strb CARG1, [PC, #-4]
+    |   sub PC, RC, #0x20000
+    |.if JIT
+    |   ldrb CARG1, [PC]
+    |   cmp CARG1, #BC_ITERN
+    |   bne >6
+    |.endif
+    |   strb OP, [PC]			// Subsumes ins_next1.
+    |   ins_next2
+    |  b <1
+    |.if JIT
+    |6:  // Unpatch JLOOP.
+    |  ldr CARG1, [DISPATCH, #DISPATCH_J(trace)]
+    |  ldrh CARG2, [PC, #2]
+    |  ldr TRACE:CARG1, [CARG1, CARG2, lsl #2]
+    |  // Subsumes ins_next1 and ins_next2.
+    |  ldr INS, TRACE:CARG1->startins
+    |  bfi INS, OP, #0, #8
+    |  str INS, [PC], #4
+    |  b <1
+    |.endif
+    break;
+
+  case BC_VARG:
+    |  decode_RB8 RB, INS
+    |   decode_RC8 RC, INS
+    |  // RA = base*8, RB = (nresults+1)*8, RC = numparams*8
+    |  ldr CARG1, [BASE, FRAME_PC]
+    |  add RC, BASE, RC
+    |   add RA, BASE, RA
+    |  add RC, RC, #FRAME_VARG
+    |   add CARG4, RA, RB
+    |  sub CARG3, BASE, #8		// CARG3 = vtop
+    |  sub RC, RC, CARG1		// RC = vbase
+    |  // Note: RC may now be even _above_ BASE if nargs was < numparams.
+    |  cmp RB, #0
+    |   sub CARG1, CARG3, RC
+    |  beq >5				// Copy all varargs?
+    |   sub CARG4, CARG4, #16
+    |1:  // Copy vararg slots to destination slots.
+    |  cmp RC, CARG3
+    |  ldrdlo CARG12, [RC], #8
+    |  mvnhs CARG2, #~LJ_TNIL
+    |   cmp RA, CARG4
+    |  strd CARG12, [RA], #8
+    |   blo <1
+    |2:
+    |  ins_next
+    |
+    |5:  // Copy all varargs.
+    |  ldr CARG4, L->maxstack
+    |   cmp CARG1, #0
+    |   movle RB, #8			// MULTRES = (0+1)*8
+    |   addgt RB, CARG1, #8
+    |  add CARG2, RA, CARG1
+    |   str RB, SAVE_MULTRES
+    |   ble <2
+    |  cmp CARG2, CARG4
+    |  bhi >7
+    |6:
+    |   ldrd CARG12, [RC], #8
+    |   strd CARG12, [RA], #8
+    |  cmp RC, CARG3
+    |  blo <6
+    |  b <2
+    |
+    |7:  // Grow stack for varargs.
+    |  lsr CARG2, CARG1, #3
+    |   str RA, L->top
+    |  mov CARG1, L
+    |   str BASE, L->base
+    |  sub RC, RC, BASE			// Need delta, because BASE may change.
+    |   str PC, SAVE_PC
+    |  sub RA, RA, BASE
+    |  bl extern lj_state_growstack	// (lua_State *L, int n)
+    |  ldr BASE, L->base
+    |  add RA, BASE, RA
+    |  add RC, BASE, RC
+    |  sub CARG3, BASE, #8
+    |  b <6
+    break;
+
+  /* -- Returns ----------------------------------------------------------- */
+
+  case BC_RETM:
+    |  // RA = results*8, RC = extra results
+    |  ldr CARG1, SAVE_MULTRES
+    |   ldr PC, [BASE, FRAME_PC]
+    |    add RA, BASE, RA
+    |  add RC, CARG1, RC, lsl #3
+    |  b ->BC_RETM_Z
+    break;
+
+  case BC_RET:
+    |  // RA = results*8, RC = nresults+1
+    |  ldr PC, [BASE, FRAME_PC]
+    |   lsl RC, RC, #3
+    |    add RA, BASE, RA
+    |->BC_RETM_Z:
+    |   str RC, SAVE_MULTRES
+    |1:
+    |  ands CARG1, PC, #FRAME_TYPE
+    |   eor CARG2, PC, #FRAME_VARG
+    |  bne ->BC_RETV2_Z
+    |
+    |->BC_RET_Z:
+    |  // BASE = base, RA = resultptr, RC = (nresults+1)*8, PC = return
+    |  ldr INS, [PC, #-4]
+    |  subs CARG4, RC, #8
+    |   sub CARG3, BASE, #8
+    |  beq >3
+    |2:
+    |  ldrd CARG12, [RA], #8
+    |   add BASE, BASE, #8
+    |   subs CARG4, CARG4, #8
+    |  strd CARG12, [BASE, #-16]
+    |   bne <2
+    |3:
+    |  decode_RA8 RA, INS
+    |  sub CARG4, CARG3, RA
+    |   decode_RB8 RB, INS
+    |  ldr LFUNC:CARG1, [CARG4, FRAME_FUNC]
+    |5:
+    |  cmp RB, RC			// More results expected?
+    |  bhi >6
+    |  mov BASE, CARG4
+    |  ldr CARG2, LFUNC:CARG1->field_pc
+    |   ins_next1
+    |   ins_next2
+    |  ldr KBASE, [CARG2, #PC2PROTO(k)]
+    |   ins_next3
+    |
+    |6:  // Fill up results with nil.
+    |  mvn CARG2, #~LJ_TNIL
+    |  add BASE, BASE, #8
+    |   add RC, RC, #8
+    |  str CARG2, [BASE, #-12]
+    |  b <5
+    |
+    |->BC_RETV1_Z:  // Non-standard return case.
+    |  add RA, BASE, RA
+    |->BC_RETV2_Z:
+    |  tst CARG2, #FRAME_TYPEP
+    |  bne ->vm_return
+    |  // Return from vararg function: relocate BASE down.
+    |  sub BASE, BASE, CARG2
+    |  ldr PC, [BASE, FRAME_PC]
+    |  b <1
+    break;
+
+  case BC_RET0: case BC_RET1:
+    |  // RA = results*8, RC = nresults+1
+    |  ldr PC, [BASE, FRAME_PC]
+    |   lsl RC, RC, #3
+    |   str RC, SAVE_MULTRES
+    |  ands CARG1, PC, #FRAME_TYPE
+    |   eor CARG2, PC, #FRAME_VARG
+    |   ldreq INS, [PC, #-4]
+    |  bne ->BC_RETV1_Z
+    if (op == BC_RET1) {
+      |  ldrd CARG12, [BASE, RA]
+    }
+    |  sub CARG4, BASE, #8
+    |   decode_RA8 RA, INS
+    if (op == BC_RET1) {
+      |  strd CARG12, [CARG4]
+    }
+    |  sub BASE, CARG4, RA
+    |   decode_RB8 RB, INS
+    |  ldr LFUNC:CARG1, [BASE, FRAME_FUNC]
+    |5:
+    |  cmp RB, RC
+    |  bhi >6
+    |  ldr CARG2, LFUNC:CARG1->field_pc
+    |   ins_next1
+    |   ins_next2
+    |  ldr KBASE, [CARG2, #PC2PROTO(k)]
+    |   ins_next3
+    |
+    |6:  // Fill up results with nil.
+    |  sub CARG2, CARG4, #4
+    |  mvn CARG3, #~LJ_TNIL
+    |  str CARG3, [CARG2, RC]
+    |  add RC, RC, #8
+    |  b <5
+    break;
+
+  /* -- Loops and branches ------------------------------------------------ */
+
+  |.define FOR_IDX,  [RA];      .define FOR_TIDX,  [RA, #4]
+  |.define FOR_STOP, [RA, #8];  .define FOR_TSTOP, [RA, #12]
+  |.define FOR_STEP, [RA, #16]; .define FOR_TSTEP, [RA, #20]
+  |.define FOR_EXT,  [RA, #24]; .define FOR_TEXT,  [RA, #28]
+
+  case BC_FORL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IFORL follows.
+    break;
+
+  case BC_JFORI:
+  case BC_JFORL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_FORI:
+  case BC_IFORL:
+    |  // RA = base*8, RC = target (after end of loop or start of loop)
+    vk = (op == BC_IFORL || op == BC_JFORL);
+    |  ldrd CARG12, [RA, BASE]!
+    if (op != BC_JFORL) {
+      |   add RC, PC, RC, lsl #2
+    }
+    if (!vk) {
+      |  ldrd CARG34, FOR_STOP
+      |   checktp CARG2, LJ_TISNUM
+      |  ldr RB, FOR_TSTEP
+      |   bne >5
+      |  checktp CARG4, LJ_TISNUM
+      |   ldr CARG4, FOR_STEP
+      |  checktpeq RB, LJ_TISNUM
+      |  bne ->vmeta_for
+      |  cmp CARG4, #0
+      |  blt >4
+      |  cmp CARG1, CARG3
+    } else {
+      |  ldrd CARG34, FOR_STEP
+      |   checktp CARG2, LJ_TISNUM
+      |   bne >5
+      |  adds CARG1, CARG1, CARG3
+      |   ldr CARG4, FOR_STOP
+      if (op == BC_IFORL) {
+	|  addvs RC, PC, #0x20000		// Overflow: prevent branch.
+      } else {
+	|  bvs >2				// Overflow: do not enter mcode.
+      }
+      |  cmp CARG3, #0
+      |  blt >4
+      |  cmp CARG1, CARG4
+    }
+    |1:
+    if (op == BC_FORI) {
+      |  subgt PC, RC, #0x20000
+    } else if (op == BC_JFORI) {
+      |  sub PC, RC, #0x20000
+      |  ldrhle RC, [PC, #-2]
+    } else if (op == BC_IFORL) {
+      |  suble PC, RC, #0x20000
+    }
+    if (vk) {
+      |  strd CARG12, FOR_IDX
+    }
+    |2:
+    |   ins_next1
+    |   ins_next2
+    |  strd CARG12, FOR_EXT
+    if (op == BC_JFORI || op == BC_JFORL) {
+      |  ble =>BC_JLOOP
+    }
+    |3:
+    |   ins_next3
+    |
+    |4:  // Invert check for negative step.
+    if (!vk) {
+      |  cmp CARG3, CARG1
+    } else {
+      |  cmp CARG4, CARG1
+    }
+    |  b <1
+    |
+    |5:  // FP loop.
+    if (!vk) {
+      |  cmnlo CARG4, #-LJ_TISNUM
+      |  cmnlo RB, #-LJ_TISNUM
+      |  bhs ->vmeta_for
+      |.if FPU
+      |  vldr d0, FOR_IDX
+      |  vldr d1, FOR_STOP
+      |  cmp RB, #0
+      |  vstr d0, FOR_EXT
+      |.else
+      |  cmp RB, #0
+      |   strd CARG12, FOR_EXT
+      |  blt >8
+      |.endif
+    } else {
+      |.if FPU
+      |  vldr d0, FOR_IDX
+      |  vldr d2, FOR_STEP
+      |  vldr d1, FOR_STOP
+      |  cmp CARG4, #0
+      |  vadd.f64 d0, d0, d2
+      |.else
+      |  cmp CARG4, #0
+      |  blt >8
+      |  bl extern __aeabi_dadd
+      |   strd CARG12, FOR_IDX
+      |  ldrd CARG34, FOR_STOP
+      |   strd CARG12, FOR_EXT
+      |.endif
+    }
+    |6:
+    |.if FPU
+    |  vcmpge.f64 d0, d1
+    |  vcmplt.f64 d1, d0
+    |  vmrs
+    |.else
+    |  bl extern __aeabi_cdcmple
+    |.endif
+    if (vk) {
+      |.if FPU
+      |  vstr d0, FOR_IDX
+      |  vstr d0, FOR_EXT
+      |.endif
+    }
+    if (op == BC_FORI) {
+      |  subhi PC, RC, #0x20000
+    } else if (op == BC_JFORI) {
+      |  sub PC, RC, #0x20000
+      |  ldrhls RC, [PC, #-2]
+      |  bls =>BC_JLOOP
+    } else if (op == BC_IFORL) {
+      |  subls PC, RC, #0x20000
+    } else {
+      |  bls =>BC_JLOOP
+    }
+    |  ins_next1
+    |  ins_next2
+    |  b <3
+    |
+    |.if not FPU
+    |8:  // Invert check for negative step.
+    if (vk) {
+      |  bl extern __aeabi_dadd
+      |  strd CARG12, FOR_IDX
+      |  strd CARG12, FOR_EXT
+    }
+    |  mov CARG3, CARG1
+    |  mov CARG4, CARG2
+    |  ldrd CARG12, FOR_STOP
+    |  b <6
+    |.endif
+    break;
+
+  case BC_ITERL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IITERL follows.
+    break;
+
+  case BC_JITERL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IITERL:
+    |  // RA = base*8, RC = target
+    |  ldrd CARG12, [RA, BASE]!
+    if (op == BC_JITERL) {
+      |  cmn CARG2, #-LJ_TNIL		// Stop if iterator returned nil.
+      |  strdne CARG12, [RA, #-8]
+      |  bne =>BC_JLOOP
+    } else {
+      |   add RC, PC, RC, lsl #2
+      |  // STALL: load CARG12.
+      |  cmn CARG2, #-LJ_TNIL		// Stop if iterator returned nil.
+      |  subne PC, RC, #0x20000		// Otherwise save control var + branch.
+      |  strdne CARG12, [RA, #-8]
+    }
+    |  ins_next
+    break;
+
+  case BC_LOOP:
+    |  // RA = base*8, RC = target (loop extent)
+    |  // Note: RA/RC is only used by trace recorder to determine scope/extent
+    |  // This opcode does NOT jump, it's only purpose is to detect a hot loop.
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_ILOOP follows.
+    break;
+
+  case BC_ILOOP:
+    |  // RA = base*8, RC = target (loop extent)
+    |  ins_next
+    break;
+
+  case BC_JLOOP:
+    |.if JIT
+    |  // RA = base (ignored), RC = traceno
+    |  ldr CARG1, [DISPATCH, #DISPATCH_J(trace)]
+    |   mov CARG2, #0  // Traces on ARM don't store the trace number, so use 0.
+    |  ldr TRACE:RC, [CARG1, RC, lsl #2]
+    |   st_vmstate CARG2
+    |  ldr RA, TRACE:RC->mcode
+    |   str BASE, [DISPATCH, #DISPATCH_GL(jit_base)]
+    |   str L, [DISPATCH, #DISPATCH_GL(tmpbuf.L)]
+    |  bx RA
+    |.endif
+    break;
+
+  case BC_JMP:
+    |  // RA = base*8 (only used by trace recorder), RC = target
+    |  add RC, PC, RC, lsl #2
+    |  sub PC, RC, #0x20000
+    |  ins_next
+    break;
+
+  /* -- Function headers -------------------------------------------------- */
+
+  case BC_FUNCF:
+    |.if JIT
+    |  hotcall
+    |.endif
+  case BC_FUNCV:  /* NYI: compiled vararg functions. */
+    |  // Fall through. Assumes BC_IFUNCF/BC_IFUNCV follow.
+    break;
+
+  case BC_JFUNCF:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IFUNCF:
+    |  // BASE = new base, RA = BASE+framesize*8, CARG3 = LFUNC, RC = nargs*8
+    |  ldr CARG1, L->maxstack
+    |   ldrb CARG2, [PC, #-4+PC2PROTO(numparams)]
+    |    ldr KBASE, [PC, #-4+PC2PROTO(k)]
+    |  cmp RA, CARG1
+    |  bhi ->vm_growstack_l
+    if (op != BC_JFUNCF) {
+      |  ins_next1
+      |  ins_next2
+    }
+    |2:
+    |  cmp NARGS8:RC, CARG2, lsl #3	// Check for missing parameters.
+    |   mvn CARG4, #~LJ_TNIL
+    |  blo >3
+    if (op == BC_JFUNCF) {
+      |  decode_RD RC, INS
+      |  b =>BC_JLOOP
+    } else {
+      |  ins_next3
+    }
+    |
+    |3:  // Clear missing parameters.
+    |  strd CARG34, [BASE, NARGS8:RC]
+    |  add NARGS8:RC, NARGS8:RC, #8
+    |  b <2
+    break;
+
+  case BC_JFUNCV:
+#if !LJ_HASJIT
+    break;
+#endif
+    |  NYI  // NYI: compiled vararg functions
+    break;  /* NYI: compiled vararg functions. */
+
+  case BC_IFUNCV:
+    |  // BASE = new base, RA = BASE+framesize*8, CARG3 = LFUNC, RC = nargs*8
+    |  ldr CARG1, L->maxstack
+    |   add CARG4, BASE, RC
+    |  add RA, RA, RC
+    |   str LFUNC:CARG3, [CARG4]	// Store copy of LFUNC.
+    |   add CARG2, RC, #8+FRAME_VARG
+    |    ldr KBASE, [PC, #-4+PC2PROTO(k)]
+    |  cmp RA, CARG1
+    |   str CARG2, [CARG4, #4]		// Store delta + FRAME_VARG.
+    |  bhs ->vm_growstack_l
+    |  ldrb RB, [PC, #-4+PC2PROTO(numparams)]
+    |   mov RA, BASE
+    |   mov RC, CARG4
+    |  cmp RB, #0
+    |   add BASE, CARG4, #8
+    |  beq >3
+    |  mvn CARG3, #~LJ_TNIL
+    |1:
+    |  cmp RA, RC			// Less args than parameters?
+    |   ldrdlo CARG12, [RA], #8
+    |   movhs CARG2, CARG3
+    |    strlo CARG3, [RA, #-4]		// Clear old fixarg slot (help the GC).
+    |2:
+    |  subs RB, RB, #1
+    |   strd CARG12, [CARG4, #8]!
+    |  bne <1
+    |3:
+    |  ins_next
+    break;
+
+  case BC_FUNCC:
+  case BC_FUNCCW:
+    |  // BASE = new base, RA = BASE+framesize*8, CARG3 = CFUNC, RC = nargs*8
+    if (op == BC_FUNCC) {
+      |  ldr CARG4, CFUNC:CARG3->f
+    } else {
+      |  ldr CARG4, [DISPATCH, #DISPATCH_GL(wrapf)]
+    }
+    |   add CARG2, RA, NARGS8:RC
+    |   ldr CARG1, L->maxstack
+    |  add RC, BASE, NARGS8:RC
+    |    str BASE, L->base
+    |   cmp CARG2, CARG1
+    |  str RC, L->top
+    if (op == BC_FUNCCW) {
+      |  ldr CARG2, CFUNC:CARG3->f
+    }
+    |    mv_vmstate CARG3, C
+    |  mov CARG1, L
+    |   bhi ->vm_growstack_c		// Need to grow stack.
+    |    st_vmstate CARG3
+    |  blx CARG4			// (lua_State *L [, lua_CFunction f])
+    |  // Returns nresults.
+    |  ldr BASE, L->base
+    |    mv_vmstate CARG3, INTERP
+    |   ldr CRET2, L->top
+    |    str L, [DISPATCH, #DISPATCH_GL(cur_L)]
+    |   lsl RC, CRET1, #3
+    |    st_vmstate CARG3
+    |  ldr PC, [BASE, FRAME_PC]
+    |   sub RA, CRET2, RC		// RA = L->top - nresults*8
+    |  b ->vm_returnc
+    break;
+
+  /* ---------------------------------------------------------------------- */
+
+  default:
+    fprintf(stderr, "Error: undefined opcode BC_%s\n", bc_names[op]);
+    exit(2);
+    break;
+  }
+}
+
+static int build_backend(BuildCtx *ctx)
+{
+  int op;
+
+  dasm_growpc(Dst, BC__MAX);
+
+  build_subroutines(ctx);
+
+  |.code_op
+  for (op = 0; op < BC__MAX; op++)
+    build_ins(ctx, (BCOp)op, op);
+
+  return BC__MAX;
+}
+
+/* Emit pseudo frame-info for all assembler functions. */
+static void emit_asm_debug(BuildCtx *ctx)
+{
+  int fcofs = (int)((uint8_t *)ctx->glob[GLOB_vm_ffi_call] - ctx->code);
+  int i;
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+    fprintf(ctx->fp, "\t.section .debug_frame,\"\",%%progbits\n");
+    fprintf(ctx->fp,
+	".Lframe0:\n"
+	"\t.long .LECIE0-.LSCIE0\n"
+	".LSCIE0:\n"
+	"\t.long 0xffffffff\n"
+	"\t.byte 0x1\n"
+	"\t.string \"\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 0xe\n"				/* Return address is in lr. */
+	"\t.byte 0xc\n\t.uleb128 0xd\n\t.uleb128 0\n"	/* def_cfa sp */
+	"\t.align 2\n"
+	".LECIE0:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE0:\n"
+	"\t.long .LEFDE0-.LASFDE0\n"
+	".LASFDE0:\n"
+	"\t.long .Lframe0\n"
+	"\t.long .Lbegin\n"
+	"\t.long %d\n"
+	"\t.byte 0xe\n\t.uleb128 %d\n"		/* def_cfa_offset */
+	"\t.byte 0x8e\n\t.uleb128 1\n",		/* offset lr */
+	fcofs, CFRAME_SIZE);
+    for (i = 11; i >= (LJ_ARCH_HASFPU ? 5 : 4); i--)  /* offset r4-r11 */
+      fprintf(ctx->fp, "\t.byte %d\n\t.uleb128 %d\n", 0x80+i, 2+(11-i));
+#if LJ_ARCH_HASFPU
+    for (i = 15; i >= 8; i--)  /* offset d8-d15 */
+      fprintf(ctx->fp, "\t.byte 5\n\t.uleb128 %d, %d\n",
+	64+2*i, 10+2*(15-i));
+    fprintf(ctx->fp, "\t.byte 0x84\n\t.uleb128 %d\n", 25);  /* offset r4 */
+#endif
+    fprintf(ctx->fp,
+	"\t.align 2\n"
+	".LEFDE0:\n\n");
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".LSFDE1:\n"
+	"\t.long .LEFDE1-.LASFDE1\n"
+	".LASFDE1:\n"
+	"\t.long .Lframe0\n"
+	"\t.long lj_vm_ffi_call\n"
+	"\t.long %d\n"
+	"\t.byte 0xe\n\t.uleb128 16\n"		/* def_cfa_offset */
+	"\t.byte 0x8e\n\t.uleb128 1\n"		/* offset lr */
+	"\t.byte 0x8b\n\t.uleb128 2\n"		/* offset r11 */
+	"\t.byte 0x85\n\t.uleb128 3\n"		/* offset r5 */
+	"\t.byte 0x84\n\t.uleb128 4\n"		/* offset r4 */
+	"\t.byte 0xd\n\t.uleb128 0xb\n"		/* def_cfa_register r11 */
+	"\t.align 2\n"
+	".LEFDE1:\n\n", (int)ctx->codesz - fcofs);
+#endif
+    break;
+  default:
+    break;
+  }
+}
+
diff --git a/libs/luajit-cmake/luajit/src/vm_arm64.dasc b/libs/luajit-cmake/luajit/src/vm_arm64.dasc
new file mode 100644
index 0000000..3448d0d
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/vm_arm64.dasc
@@ -0,0 +1,4158 @@
+|// Low-level VM code for ARM64 CPUs.
+|// Bytecode interpreter, fast functions and helper functions.
+|// Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+|
+|.arch arm64
+|.section code_op, code_sub
+|
+|.actionlist build_actionlist
+|.globals GLOB_
+|.globalnames globnames
+|.externnames extnames
+|
+|// Note: The ragged indentation of the instructions is intentional.
+|//       The starting columns indicate data dependencies.
+|
+|//-----------------------------------------------------------------------
+|
+|// ARM64 registers and the AAPCS64 ABI 1.0 at a glance:
+|//
+|// x0-x17 temp, x19-x28 callee-saved, x29 fp, x30 lr
+|// x18 is reserved on most platforms. Don't use it, save it or restore it.
+|// x31 doesn't exist. Register number 31 either means xzr/wzr (zero) or sp,
+|// depending on the instruction.
+|// v0-v7 temp, v8-v15 callee-saved (only d8-d15 preserved), v16-v31 temp
+|//
+|// x0-x7/v0-v7 hold parameters and results.
+|
+|// Fixed register assignments for the interpreter.
+|
+|// The following must be C callee-save.
+|.define BASE,		x19	// Base of current Lua stack frame.
+|.define KBASE,		x20	// Constants of current Lua function.
+|.define PC,		x21	// Next PC.
+|.define GLREG,		x22	// Global state.
+|.define LREG,		x23	// Register holding lua_State (also in SAVE_L).
+|.define TISNUM,	x24	// Constant LJ_TISNUM << 47.
+|.define TISNUMhi,	x25	// Constant LJ_TISNUM << 15.
+|.define TISNIL,	x26	// Constant -1LL.
+|.define fp,		x29	// Yes, we have to maintain a frame pointer.
+|
+|.define ST_INTERP,	w26	// Constant -1.
+|
+|// The following temporaries are not saved across C calls, except for RA/RC.
+|.define RA,		x27
+|.define RC,		x28
+|.define RB,		x17
+|.define RAw,		w27
+|.define RCw,		w28
+|.define RBw,		w17
+|.define INS,		x16
+|.define INSw,		w16
+|.define ITYPE,		x15
+|.define TMP0,		x8
+|.define TMP1,		x9
+|.define TMP2,		x10
+|.define TMP3,		x11
+|.define TMP0w,		w8
+|.define TMP1w,		w9
+|.define TMP2w,		w10
+|.define TMP3w,		w11
+|
+|// Calling conventions. Also used as temporaries.
+|.define CARG1,		x0
+|.define CARG2,		x1
+|.define CARG3,		x2
+|.define CARG4,		x3
+|.define CARG5,		x4
+|.define CARG1w,	w0
+|.define CARG2w,	w1
+|.define CARG3w,	w2
+|.define CARG4w,	w3
+|.define CARG5w,	w4
+|
+|.define FARG1,		d0
+|.define FARG2,		d1
+|
+|.define CRET1,		x0
+|.define CRET1w,	w0
+|
+|// Stack layout while in interpreter. Must match with lj_frame.h.
+|
+|.define CFRAME_SPACE,	208
+|//----- 16 byte aligned, <-- sp entering interpreter
+|.define SAVE_FP_LR_,	192
+|.define SAVE_GPR_,	112		// 112+10*8: 64 bit GPR saves
+|.define SAVE_FPR_,	48		// 48+8*8: 64 bit FPR saves
+|// Unused		[sp, #44]	// 32 bit values
+|.define SAVE_NRES,	[sp, #40]
+|.define SAVE_ERRF,	[sp, #36]
+|.define SAVE_MULTRES,	[sp, #32]
+|.define TMPD,		[sp, #24]	// 64 bit values
+|.define SAVE_L,	[sp, #16]
+|.define SAVE_PC,	[sp, #8]
+|.define SAVE_CFRAME,	[sp, #0]
+|//----- 16 byte aligned, <-- sp while in interpreter.
+|
+|.define TMPDofs,	#24
+|
+|.macro save_, gpr1, gpr2, fpr1, fpr2
+|  stp d..fpr2, d..fpr1, [sp, # SAVE_FPR_+(14-fpr1)*8]
+|  stp x..gpr2, x..gpr1, [sp, # SAVE_GPR_+(27-gpr1)*8]
+|.endmacro
+|.macro rest_, gpr1, gpr2, fpr1, fpr2
+|  ldp d..fpr2, d..fpr1, [sp, # SAVE_FPR_+(14-fpr1)*8]
+|  ldp x..gpr2, x..gpr1, [sp, # SAVE_GPR_+(27-gpr1)*8]
+|.endmacro
+|
+|.macro saveregs
+|  sub sp, sp, # CFRAME_SPACE
+|  stp fp, lr, [sp, # SAVE_FP_LR_]
+|  add fp, sp, # SAVE_FP_LR_
+|  stp x20, x19, [sp, # SAVE_GPR_+(27-19)*8]
+|  save_ 21, 22, 8, 9
+|  save_ 23, 24, 10, 11
+|  save_ 25, 26, 12, 13
+|  save_ 27, 28, 14, 15
+|.endmacro
+|.macro restoreregs
+|  ldp x20, x19, [sp, # SAVE_GPR_+(27-19)*8]
+|  rest_ 21, 22, 8, 9
+|  rest_ 23, 24, 10, 11
+|  rest_ 25, 26, 12, 13
+|  rest_ 27, 28, 14, 15
+|  ldp fp, lr, [sp, # SAVE_FP_LR_]
+|  add sp, sp, # CFRAME_SPACE
+|.endmacro
+|
+|// Type definitions. Some of these are only used for documentation.
+|.type L,		lua_State,	LREG
+|.type GL,		global_State,	GLREG
+|.type TVALUE,		TValue
+|.type GCOBJ,		GCobj
+|.type STR,		GCstr
+|.type TAB,		GCtab
+|.type LFUNC,		GCfuncL
+|.type CFUNC,		GCfuncC
+|.type PROTO,		GCproto
+|.type UPVAL,		GCupval
+|.type NODE,		Node
+|.type NARGS8,		int
+|.type TRACE,		GCtrace
+|.type SBUF,		SBuf
+|
+|//-----------------------------------------------------------------------
+|
+|// Trap for not-yet-implemented parts.
+|.macro NYI; brk; .endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Access to frame relative to BASE.
+|.define FRAME_FUNC,	#-16
+|.define FRAME_PC,	#-8
+|
+|// Endian-specific defines.
+|.if ENDIAN_LE
+|.define LO,		0
+|.define OFS_RD,	2
+|.define OFS_RB,	3
+|.define OFS_RA,	1
+|.define OFS_OP,	0
+|.else
+|.define LO,		4
+|.define OFS_RD,	0
+|.define OFS_RB,	0
+|.define OFS_RA,	2
+|.define OFS_OP,	3
+|.endif
+|
+|.macro decode_RA, dst, ins; ubfx dst, ins, #8, #8; .endmacro
+|.macro decode_RB, dst, ins; ubfx dst, ins, #24, #8; .endmacro
+|.macro decode_RC, dst, ins; ubfx dst, ins, #16, #8; .endmacro
+|.macro decode_RD, dst, ins; ubfx dst, ins, #16, #16; .endmacro
+|.macro decode_RC8RD, dst, src; ubfiz dst, src, #3, #8; .endmacro
+|
+|// Instruction decode+dispatch.
+|.macro ins_NEXT
+|  ldr INSw, [PC], #4
+|  add TMP1, GL, INS, uxtb #3
+|   decode_RA RA, INS
+|  ldr TMP0, [TMP1, #GG_G2DISP]
+|   decode_RD RC, INS
+|  br TMP0
+|.endmacro
+|
+|// Instruction footer.
+|.if 1
+|  // Replicated dispatch. Less unpredictable branches, but higher I-Cache use.
+|  .define ins_next, ins_NEXT
+|  .define ins_next_, ins_NEXT
+|.else
+|  // Common dispatch. Lower I-Cache use, only one (very) unpredictable branch.
+|  // Affects only certain kinds of benchmarks (and only with -j off).
+|  .macro ins_next
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next_
+|  ->ins_next:
+|    ins_NEXT
+|  .endmacro
+|.endif
+|
+|// Call decode and dispatch.
+|.macro ins_callt
+|  // BASE = new base, CARG3 = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+|  ldr PC, LFUNC:CARG3->pc
+|  ldr INSw, [PC], #4
+|  add TMP1, GL, INS, uxtb #3
+|   decode_RA RA, INS
+|  ldr TMP0, [TMP1, #GG_G2DISP]
+|   add RA, BASE, RA, lsl #3
+|  br TMP0
+|.endmacro
+|
+|.macro ins_call
+|  // BASE = new base, CARG3 = LFUNC/CFUNC, RC = nargs*8, PC = caller PC
+|  str PC, [BASE, FRAME_PC]
+|  ins_callt
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Macros to check the TValue type and extract the GCobj. Branch on failure.
+|.macro checktp, reg, tp, target
+|  asr ITYPE, reg, #47
+|  cmn ITYPE, #-tp
+|   and reg, reg, #LJ_GCVMASK
+|  bne target
+|.endmacro
+|.macro checktp, dst, reg, tp, target
+|  asr ITYPE, reg, #47
+|  cmn ITYPE, #-tp
+|   and dst, reg, #LJ_GCVMASK
+|  bne target
+|.endmacro
+|.macro checkstr, reg, target; checktp reg, LJ_TSTR, target; .endmacro
+|.macro checktab, reg, target; checktp reg, LJ_TTAB, target; .endmacro
+|.macro checkfunc, reg, target; checktp reg, LJ_TFUNC, target; .endmacro
+|.macro checkint, reg, target
+|  cmp TISNUMhi, reg, lsr #32
+|  bne target
+|.endmacro
+|.macro checknum, reg, target
+|  cmp TISNUMhi, reg, lsr #32
+|  bls target
+|.endmacro
+|.macro checknumber, reg, target
+|  cmp TISNUMhi, reg, lsr #32
+|  blo target
+|.endmacro
+|
+|.macro mov_false, reg; movn reg, #0x8000, lsl #32; .endmacro
+|.macro mov_true, reg; movn reg, #0x0001, lsl #48; .endmacro
+|
+#define GL_J(field)	(GG_G2J + (int)offsetof(jit_State, field))
+|
+#define PC2PROTO(field)  ((int)offsetof(GCproto, field)-(int)sizeof(GCproto))
+|
+|.macro hotcheck, delta
+|  lsr CARG1, PC, #1
+|  and CARG1, CARG1, #126
+|  add CARG1, CARG1, #GG_G2DISP+GG_DISP2HOT
+|  ldrh CARG2w, [GL, CARG1]
+|  subs CARG2, CARG2, #delta
+|  strh CARG2w, [GL, CARG1]
+|.endmacro
+|
+|.macro hotloop
+|  hotcheck HOTCOUNT_LOOP
+|  blo ->vm_hotloop
+|.endmacro
+|
+|.macro hotcall
+|  hotcheck HOTCOUNT_CALL
+|  blo ->vm_hotcall
+|.endmacro
+|
+|// Set current VM state.
+|.macro mv_vmstate, reg, st; movn reg, #LJ_VMST_..st; .endmacro
+|.macro st_vmstate, reg; str reg, GL->vmstate; .endmacro
+|
+|// Move table write barrier back. Overwrites mark and tmp.
+|.macro barrierback, tab, mark, tmp
+|  ldr tmp, GL->gc.grayagain
+|   and mark, mark, #~LJ_GC_BLACK	// black2gray(tab)
+|  str tab, GL->gc.grayagain
+|   strb mark, tab->marked
+|  str tmp, tab->gclist
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+
+#if !LJ_DUALNUM
+#error "Only dual-number mode supported for ARM64 target"
+#endif
+
+/* Generate subroutines used by opcodes and other parts of the VM. */
+/* The .code_sub section should be last to help static branch prediction. */
+static void build_subroutines(BuildCtx *ctx)
+{
+  |.code_sub
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Return handling ----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_returnp:
+  |  // See vm_return. Also: RB = previous base.
+  |  tbz PC, #2, ->cont_dispatch	// (PC & FRAME_P) == 0?
+  |
+  |  // Return from pcall or xpcall fast func.
+  |  ldr PC, [RB, FRAME_PC]		// Fetch PC of previous frame.
+  |   mov_true TMP0
+  |  mov BASE, RB
+  |  // Prepending may overwrite the pcall frame, so do it at the end.
+  |   str TMP0, [RA, #-8]!		// Prepend true to results.
+  |
+  |->vm_returnc:
+  |  adds RC, RC, #8			// RC = (nresults+1)*8.
+  |  mov CRET1, #LUA_YIELD
+  |  beq ->vm_unwind_c_eh
+  |  str RCw, SAVE_MULTRES
+  |  ands CARG1, PC, #FRAME_TYPE
+  |  beq ->BC_RET_Z			// Handle regular return to Lua.
+  |
+  |->vm_return:
+  |  // BASE = base, RA = resultptr, RC/MULTRES = (nresults+1)*8, PC = return
+  |  // CARG1 = PC & FRAME_TYPE
+  |  and RB, PC, #~FRAME_TYPEP
+  |   cmp CARG1, #FRAME_C
+  |  sub RB, BASE, RB			// RB = previous base.
+  |   bne ->vm_returnp
+  |
+  |  str RB, L->base
+  |   ldrsw CARG2, SAVE_NRES		// CARG2 = nresults+1.
+  |    mv_vmstate TMP0w, C
+  |   sub BASE, BASE, #16
+  |  subs TMP2, RC, #8
+  |    st_vmstate TMP0w
+  |  beq >2
+  |1:
+  |  subs TMP2, TMP2, #8
+  |   ldr TMP0, [RA], #8
+  |   str TMP0, [BASE], #8
+  |  bne <1
+  |2:
+  |  cmp RC, CARG2, lsl #3		// More/less results wanted?
+  |  bne >6
+  |3:
+  |  str BASE, L->top			// Store new top.
+  |
+  |->vm_leave_cp:
+  |  ldr RC, SAVE_CFRAME		// Restore previous C frame.
+  |   mov CRET1, #0			// Ok return status for vm_pcall.
+  |  str RC, L->cframe
+  |
+  |->vm_leave_unw:
+  |  restoreregs
+  |  ret
+  |
+  |6:
+  |  bgt >7				// Less results wanted?
+  |  // More results wanted. Check stack size and fill up results with nil.
+  |  ldr CARG3, L->maxstack
+  |  cmp BASE, CARG3
+  |  bhs >8
+  |   str TISNIL, [BASE], #8
+  |  add RC, RC, #8
+  |  b <2
+  |
+  |7:  // Less results wanted.
+  |  cbz CARG2, <3			// LUA_MULTRET+1 case?
+  |  sub CARG1, RC, CARG2, lsl #3
+  |  sub BASE, BASE, CARG1		// Shrink top.
+  |  b <3
+  |
+  |8:  // Corner case: need to grow stack for filling up results.
+  |  // This can happen if:
+  |  // - A C function grows the stack (a lot).
+  |  // - The GC shrinks the stack in between.
+  |  // - A return back from a lua_call() with (high) nresults adjustment.
+  |  str BASE, L->top			// Save current top held in BASE (yes).
+  |  mov CARG1, L
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  ldr BASE, L->top			// Need the (realloced) L->top in BASE.
+  |  ldrsw CARG2, SAVE_NRES
+  |  b <2
+  |
+  |->vm_unwind_c:			// Unwind C stack, return from vm_pcall.
+  |  // (void *cframe, int errcode)
+  |  mov sp, CARG1
+  |  mov CRET1, CARG2
+  |->vm_unwind_c_eh:			// Landing pad for external unwinder.
+  |  ldr L, SAVE_L
+  |   mv_vmstate TMP0w, C
+  |  ldr GL, L->glref
+  |   st_vmstate TMP0w
+  |  b ->vm_leave_unw
+  |
+  |->vm_unwind_ff:			// Unwind C stack, return from ff pcall.
+  |  // (void *cframe)
+  |  and sp, CARG1, #CFRAME_RAWMASK
+  |->vm_unwind_ff_eh:			// Landing pad for external unwinder.
+  |  ldr L, SAVE_L
+  |    movz TISNUM, #(LJ_TISNUM>>1)&0xffff, lsl #48
+  |    movz TISNUMhi, #(LJ_TISNUM>>1)&0xffff, lsl #16
+  |    movn TISNIL, #0
+  |    mov RC, #16			// 2 results: false + error message.
+  |  ldr BASE, L->base
+  |   ldr GL, L->glref			// Setup pointer to global state.
+  |    mov_false TMP0
+  |  sub RA, BASE, #8			// Results start at BASE-8.
+  |  ldr PC, [BASE, FRAME_PC]		// Fetch PC of previous frame.
+  |    str TMP0, [BASE, #-8]		// Prepend false to error message.
+  |   st_vmstate ST_INTERP
+  |  b ->vm_returnc
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Grow stack for calls -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_growstack_c:			// Grow stack for C function.
+  |  // CARG1 = L
+  |  mov CARG2, #LUA_MINSTACK
+  |  b >2
+  |
+  |->vm_growstack_l:			// Grow stack for Lua function.
+  |  // BASE = new base, RA = BASE+framesize*8, RC = nargs*8, PC = first PC
+  |  add RC, BASE, RC
+  |   sub RA, RA, BASE
+  |    mov CARG1, L
+  |  stp BASE, RC, L->base
+  |   add PC, PC, #4			// Must point after first instruction.
+  |   lsr CARG2, RA, #3
+  |2:
+  |  // L->base = new base, L->top = top
+  |  str PC, SAVE_PC
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  ldp BASE, RC, L->base
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]
+  |   sub NARGS8:RC, RC, BASE
+  |  and LFUNC:CARG3, CARG3, #LJ_GCVMASK
+  |  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+  |  ins_callt				// Just retry the call.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Entry points into the assembler VM ---------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_resume:				// Setup C frame and resume thread.
+  |  // (lua_State *L, TValue *base, int nres1 = 0, ptrdiff_t ef = 0)
+  |  saveregs
+  |  mov L, CARG1
+  |    ldr GL, L->glref			// Setup pointer to global state.
+  |  mov BASE, CARG2
+  |   str L, SAVE_L
+  |  mov PC, #FRAME_CP
+  |   str wzr, SAVE_NRES
+  |    add TMP0, sp, #CFRAME_RESUME
+  |  ldrb TMP1w, L->status
+  |   str wzr, SAVE_ERRF
+  |   str L, SAVE_PC			// Any value outside of bytecode is ok.
+  |   str xzr, SAVE_CFRAME
+  |    str TMP0, L->cframe
+  |  cbz TMP1w, >3
+  |
+  |  // Resume after yield (like a return).
+  |  str L, GL->cur_L
+  |  mov RA, BASE
+  |   ldp BASE, CARG1, L->base
+  |    movz TISNUM, #(LJ_TISNUM>>1)&0xffff, lsl #48
+  |    movz TISNUMhi, #(LJ_TISNUM>>1)&0xffff, lsl #16
+  |  ldr PC, [BASE, FRAME_PC]
+  |     strb wzr, L->status
+  |    movn TISNIL, #0
+  |   sub RC, CARG1, BASE
+  |  ands CARG1, PC, #FRAME_TYPE
+  |   add RC, RC, #8
+  |     st_vmstate ST_INTERP
+  |   str RCw, SAVE_MULTRES
+  |  beq ->BC_RET_Z
+  |  b ->vm_return
+  |
+  |->vm_pcall:				// Setup protected C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1, ptrdiff_t ef)
+  |  saveregs
+  |  mov PC, #FRAME_CP
+  |  str CARG4w, SAVE_ERRF
+  |  b >1
+  |
+  |->vm_call:				// Setup C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1)
+  |  saveregs
+  |  mov PC, #FRAME_C
+  |
+  |1:  // Entry point for vm_pcall above (PC = ftype).
+  |  ldr RC, L:CARG1->cframe
+  |   str CARG3w, SAVE_NRES
+  |    mov L, CARG1
+  |   str CARG1, SAVE_L
+  |    ldr GL, L->glref			// Setup pointer to global state.
+  |     mov BASE, CARG2
+  |   str CARG1, SAVE_PC		// Any value outside of bytecode is ok.
+  |  add TMP0, sp, #0
+  |   str RC, SAVE_CFRAME
+  |  str TMP0, L->cframe		// Add our C frame to cframe chain.
+  |
+  |3:  // Entry point for vm_cpcall/vm_resume (BASE = base, PC = ftype).
+  |  str L, GL->cur_L
+  |  ldp RB, CARG1, L->base		// RB = old base (for vmeta_call).
+  |    movz TISNUM, #(LJ_TISNUM>>1)&0xffff, lsl #48
+  |    movz TISNUMhi, #(LJ_TISNUM>>1)&0xffff, lsl #16
+  |  add PC, PC, BASE
+  |    movn TISNIL, #0
+  |  sub PC, PC, RB			// PC = frame delta + frame type
+  |   sub NARGS8:RC, CARG1, BASE
+  |    st_vmstate ST_INTERP
+  |
+  |->vm_call_dispatch:
+  |  // RB = old base, BASE = new base, RC = nargs*8, PC = caller PC
+  |  ldr CARG3, [BASE, FRAME_FUNC]
+  |  checkfunc CARG3, ->vmeta_call
+  |
+  |->vm_call_dispatch_f:
+  |  ins_call
+  |  // BASE = new base, CARG3 = func, RC = nargs*8, PC = caller PC
+  |
+  |->vm_cpcall:				// Setup protected C frame, call C.
+  |  // (lua_State *L, lua_CFunction func, void *ud, lua_CPFunction cp)
+  |  saveregs
+  |  mov L, CARG1
+  |   ldr RA, L:CARG1->stack
+  |  str CARG1, SAVE_L
+  |    ldr GL, L->glref			// Setup pointer to global state.
+  |   ldr RB, L->top
+  |  str CARG1, SAVE_PC			// Any value outside of bytecode is ok.
+  |  ldr RC, L->cframe
+  |   sub RA, RA, RB			// Compute -savestack(L, L->top).
+  |   str RAw, SAVE_NRES		// Neg. delta means cframe w/o frame.
+  |  str wzr, SAVE_ERRF			// No error function.
+  |  add TMP0, sp, #0
+  |   str RC, SAVE_CFRAME
+  |  str TMP0, L->cframe		// Add our C frame to cframe chain.
+  |    str L, GL->cur_L
+  |  blr CARG4			// (lua_State *L, lua_CFunction func, void *ud)
+  |  mov BASE, CRET1
+  |   mov PC, #FRAME_CP
+  |  cbnz BASE, <3			// Else continue with the call.
+  |  b ->vm_leave_cp			// No base? Just remove C frame.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Metamethod handling ------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |//-- Continuation dispatch ----------------------------------------------
+  |
+  |->cont_dispatch:
+  |  // BASE = meta base, RA = resultptr, RC = (nresults+1)*8
+  |  ldr LFUNC:CARG3, [RB, FRAME_FUNC]
+  |    ldr CARG1, [BASE, #-32]		// Get continuation.
+  |   mov CARG4, BASE
+  |   mov BASE, RB			// Restore caller BASE.
+  |  and LFUNC:CARG3, CARG3, #LJ_GCVMASK
+  |.if FFI
+  |    cmp CARG1, #1
+  |.endif
+  |   ldr PC, [CARG4, #-24]		// Restore PC from [cont|PC].
+  |    add TMP0, RA, RC
+  |    str TISNIL, [TMP0, #-8]		// Ensure one valid arg.
+  |.if FFI
+  |    bls >1
+  |.endif
+  |  ldr CARG3, LFUNC:CARG3->pc
+  |  ldr KBASE, [CARG3, #PC2PROTO(k)]
+  |  // BASE = base, RA = resultptr, CARG4 = meta base
+  |    br CARG1
+  |
+  |.if FFI
+  |1:
+  |  beq ->cont_ffi_callback		// cont = 1: return from FFI callback.
+  |  // cont = 0: tailcall from C function.
+  |   sub CARG4, CARG4, #32
+  |   sub RC, CARG4, BASE
+  |  b ->vm_call_tail
+  |.endif
+  |
+  |->cont_cat:				// RA = resultptr, CARG4 = meta base
+  |  ldr INSw, [PC, #-4]
+  |   sub CARG2, CARG4, #32
+  |   ldr TMP0, [RA]
+  |     str BASE, L->base
+  |  decode_RB RB, INS
+  |   decode_RA RA, INS
+  |  add TMP1, BASE, RB, lsl #3
+  |  subs TMP1, CARG2, TMP1
+  |  beq >1
+  |   str TMP0, [CARG2]
+  |  lsr CARG3, TMP1, #3
+  |  b ->BC_CAT_Z
+  |
+  |1:
+  |   str TMP0, [BASE, RA, lsl #3]
+  |  b ->cont_nop
+  |
+  |//-- Table indexing metamethods -----------------------------------------
+  |
+  |->vmeta_tgets1:
+  |  movn CARG4, #~LJ_TSTR
+  |   add CARG2, BASE, RB, lsl #3
+  |  add CARG4, STR:RC, CARG4, lsl #47
+  |  b >2
+  |
+  |->vmeta_tgets:
+  |  movk CARG2, #(LJ_TTAB>>1)&0xffff, lsl #48
+  |  str CARG2, GL->tmptv
+  |  add CARG2, GL, #offsetof(global_State, tmptv)
+  |2:
+  |   add CARG3, sp, TMPDofs
+  |  str CARG4, TMPD
+  |  b >1
+  |
+  |->vmeta_tgetb:			// RB = table, RC = index
+  |  add RC, RC, TISNUM
+  |   add CARG2, BASE, RB, lsl #3
+  |   add CARG3, sp, TMPDofs
+  |  str RC, TMPD
+  |  b >1
+  |
+  |->vmeta_tgetv:			// RB = table, RC = key
+  |  add CARG2, BASE, RB, lsl #3
+  |   add CARG3, BASE, RC, lsl #3
+  |1:
+  |   str BASE, L->base
+  |  mov CARG1, L
+  |   str PC, SAVE_PC
+  |  bl extern lj_meta_tget		// (lua_State *L, TValue *o, TValue *k)
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  cbz CRET1, >3
+  |  ldr TMP0, [CRET1]
+  |  str TMP0, [BASE, RA, lsl #3]
+  |  ins_next
+  |
+  |3:  // Call __index metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k
+  |   sub TMP1, BASE, #FRAME_CONT
+  |  ldr BASE, L->top
+  |    mov NARGS8:RC, #16		// 2 args for func(t, k).
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]  // Guaranteed to be a function here.
+  |    str PC, [BASE, #-24]		// [cont|PC]
+  |   sub PC, BASE, TMP1
+  |  and LFUNC:CARG3, CARG3, #LJ_GCVMASK
+  |  b ->vm_call_dispatch_f
+  |
+  |->vmeta_tgetr:
+  |  sxtw CARG2, TMP1w
+  |  bl extern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |  // Returns cTValue * or NULL.
+  |  mov TMP0, TISNIL
+  |  cbz CRET1, ->BC_TGETR_Z
+  |  ldr TMP0, [CRET1]
+  |  b ->BC_TGETR_Z
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->vmeta_tsets1:
+  |  movn CARG4, #~LJ_TSTR
+  |   add CARG2, BASE, RB, lsl #3
+  |  add CARG4, STR:RC, CARG4, lsl #47
+  |  b >2
+  |
+  |->vmeta_tsets:
+  |  movk CARG2, #(LJ_TTAB>>1)&0xffff, lsl #48
+  |  str CARG2, GL->tmptv
+  |  add CARG2, GL, #offsetof(global_State, tmptv)
+  |2:
+  |   add CARG3, sp, TMPDofs
+  |  str CARG4, TMPD
+  |  b >1
+  |
+  |->vmeta_tsetb:			// RB = table, RC = index
+  |  add RC, RC, TISNUM
+  |   add CARG2, BASE, RB, lsl #3
+  |   add CARG3, sp, TMPDofs
+  |  str RC, TMPD
+  |  b >1
+  |
+  |->vmeta_tsetv:
+  |  add CARG2, BASE, RB, lsl #3
+  |   add CARG3, BASE, RC, lsl #3
+  |1:
+  |   str BASE, L->base
+  |  mov CARG1, L
+  |   str PC, SAVE_PC
+  |  bl extern lj_meta_tset		// (lua_State *L, TValue *o, TValue *k)
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |   ldr TMP0, [BASE, RA, lsl #3]
+  |  cbz CRET1, >3
+  |  // NOBARRIER: lj_meta_tset ensures the table is not black.
+  |   str TMP0, [CRET1]
+  |  ins_next
+  |
+  |3:  // Call __newindex metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k/(v)
+  |   sub TMP1, BASE, #FRAME_CONT
+  |  ldr BASE, L->top
+  |    mov NARGS8:RC, #24		// 3 args for func(t, k, v).
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]  // Guaranteed to be a function here.
+  |   str TMP0, [BASE, #16]		// Copy value to third argument.
+  |    str PC, [BASE, #-24]		// [cont|PC]
+  |   sub PC, BASE, TMP1
+  |  and LFUNC:CARG3, CARG3, #LJ_GCVMASK
+  |  b ->vm_call_dispatch_f
+  |
+  |->vmeta_tsetr:
+  |  sxtw CARG3, TMP1w
+  |  str BASE, L->base
+  |  mov CARG1, L
+  |  str PC, SAVE_PC
+  |  bl extern lj_tab_setinth  // (lua_State *L, GCtab *t, int32_t key)
+  |  // Returns TValue *.
+  |  b ->BC_TSETR_Z
+  |
+  |//-- Comparison metamethods ---------------------------------------------
+  |
+  |->vmeta_comp:
+  |  add CARG2, BASE, RA, lsl #3
+  |   sub PC, PC, #4
+  |  add CARG3, BASE, RC, lsl #3
+  |   str BASE, L->base
+  |  mov CARG1, L
+  |   str PC, SAVE_PC
+  |  uxtb CARG4w, INSw
+  |  bl extern lj_meta_comp  // (lua_State *L, TValue *o1, *o2, int op)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |3:
+  |  cmp CRET1, #1
+  |  bhi ->vmeta_binop
+  |4:
+  |   ldrh RBw, [PC, # OFS_RD]
+  |    add PC, PC, #4
+  |   add RB, PC, RB, lsl #2
+  |   sub RB, RB, #0x20000
+  |  csel PC, PC, RB, lo
+  |->cont_nop:
+  |  ins_next
+  |
+  |->cont_ra:				// RA = resultptr
+  |  ldr INSw, [PC, #-4]
+  |   ldr TMP0, [RA]
+  |  decode_RA TMP1, INS
+  |   str TMP0, [BASE, TMP1, lsl #3]
+  |  b ->cont_nop
+  |
+  |->cont_condt:			// RA = resultptr
+  |  ldr TMP0, [RA]
+  |   mov_true TMP1
+  |  cmp TMP1, TMP0			// Branch if result is true.
+  |  b <4
+  |
+  |->cont_condf:			// RA = resultptr
+  |  ldr TMP0, [RA]
+  |   mov_false TMP1
+  |  cmp TMP0, TMP1			// Branch if result is false.
+  |  b <4
+  |
+  |->vmeta_equal:
+  |  // CARG2, CARG3, CARG4 are already set by BC_ISEQV/BC_ISNEV.
+  |  and TAB:CARG3, CARG3, #LJ_GCVMASK
+  |  sub PC, PC, #4
+  |   str BASE, L->base
+  |   mov CARG1, L
+  |  str PC, SAVE_PC
+  |  bl extern lj_meta_equal  // (lua_State *L, GCobj *o1, *o2, int ne)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |
+  |->vmeta_equal_cd:
+  |.if FFI
+  |  sub PC, PC, #4
+  |   str BASE, L->base
+  |   mov CARG1, L
+  |   mov CARG2, INS
+  |  str PC, SAVE_PC
+  |  bl extern lj_meta_equal_cd		// (lua_State *L, BCIns op)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |.endif
+  |
+  |->vmeta_istype:
+  |  sub PC, PC, #4
+  |   str BASE, L->base
+  |   mov CARG1, L
+  |   mov CARG2, RA
+  |   mov CARG3, RC
+  |  str PC, SAVE_PC
+  |  bl extern lj_meta_istype  // (lua_State *L, BCReg ra, BCReg tp)
+  |  b ->cont_nop
+  |
+  |//-- Arithmetic metamethods ---------------------------------------------
+  |
+  |->vmeta_arith_vn:
+  |  add CARG3, BASE, RB, lsl #3
+  |   add CARG4, KBASE, RC, lsl #3
+  |  b >1
+  |
+  |->vmeta_arith_nv:
+  |  add CARG4, BASE, RB, lsl #3
+  |   add CARG3, KBASE, RC, lsl #3
+  |  b >1
+  |
+  |->vmeta_unm:
+  |  add CARG3, BASE, RC, lsl #3
+  |  mov CARG4, CARG3
+  |  b >1
+  |
+  |->vmeta_arith_vv:
+  |  add CARG3, BASE, RB, lsl #3
+  |   add CARG4, BASE, RC, lsl #3
+  |1:
+  |  uxtb CARG5w, INSw
+  |   add CARG2, BASE, RA, lsl #3
+  |    str BASE, L->base
+  |   mov CARG1, L
+  |    str PC, SAVE_PC
+  |  bl extern lj_meta_arith  // (lua_State *L, TValue *ra,*rb,*rc, BCReg op)
+  |  // Returns NULL (finished) or TValue * (metamethod).
+  |  cbz CRET1, ->cont_nop
+  |
+  |  // Call metamethod for binary op.
+  |->vmeta_binop:
+  |  // BASE = old base, CRET1 = new base, stack = cont/func/o1/o2
+  |  sub TMP1, CRET1, BASE
+  |   str PC, [CRET1, #-24]		// [cont|PC]
+  |  add PC, TMP1, #FRAME_CONT
+  |  mov BASE, CRET1
+  |   mov NARGS8:RC, #16		// 2 args for func(o1, o2).
+  |  b ->vm_call_dispatch
+  |
+  |->vmeta_len:
+  |  add CARG2, BASE, RC, lsl #3
+#if LJ_52
+  |  mov TAB:RC, TAB:CARG1		// Save table (ignored for other types).
+#endif
+  |   str BASE, L->base
+  |  mov CARG1, L
+  |   str PC, SAVE_PC
+  |  bl extern lj_meta_len		// (lua_State *L, TValue *o)
+  |  // Returns NULL (retry) or TValue * (metamethod base).
+#if LJ_52
+  |  cbnz CRET1, ->vmeta_binop		// Binop call for compatibility.
+  |  mov TAB:CARG1, TAB:RC
+  |  b ->BC_LEN_Z
+#else
+  |  b ->vmeta_binop			// Binop call for compatibility.
+#endif
+  |
+  |//-- Call metamethod ----------------------------------------------------
+  |
+  |->vmeta_call:			// Resolve and call __call metamethod.
+  |  // RB = old base, BASE = new base, RC = nargs*8
+  |  mov CARG1, L
+  |   str RB, L->base			// This is the callers base!
+  |  sub CARG2, BASE, #16
+  |   str PC, SAVE_PC
+  |  add CARG3, BASE, NARGS8:RC
+  |  bl extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]  // Guaranteed to be a function here.
+  |   add NARGS8:RC, NARGS8:RC, #8	// Got one more argument now.
+  |  and LFUNC:CARG3, CARG3, #LJ_GCVMASK
+  |  ins_call
+  |
+  |->vmeta_callt:			// Resolve __call for BC_CALLT.
+  |  // BASE = old base, RA = new base, RC = nargs*8
+  |  mov CARG1, L
+  |   str BASE, L->base
+  |  sub CARG2, RA, #16
+  |   str PC, SAVE_PC
+  |  add CARG3, RA, NARGS8:RC
+  |  bl extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |  ldr TMP1, [RA, FRAME_FUNC]		// Guaranteed to be a function here.
+  |   ldr PC, [BASE, FRAME_PC]
+  |   add NARGS8:RC, NARGS8:RC, #8	// Got one more argument now.
+  |  and LFUNC:CARG3, TMP1, #LJ_GCVMASK
+  |  b ->BC_CALLT2_Z
+  |
+  |//-- Argument coercion for 'for' statement ------------------------------
+  |
+  |->vmeta_for:
+  |  mov CARG1, L
+  |   str BASE, L->base
+  |  mov CARG2, RA
+  |   str PC, SAVE_PC
+  |  bl extern lj_meta_for	// (lua_State *L, TValue *base)
+  |  ldr INSw, [PC, #-4]
+  |.if JIT
+  |   uxtb TMP0w, INSw
+  |.endif
+  |  decode_RA RA, INS
+  |  decode_RD RC, INS
+  |.if JIT
+  |   cmp TMP0, #BC_JFORI
+  |   beq =>BC_JFORI
+  |.endif
+  |  b =>BC_FORI
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Fast functions -----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro .ffunc, name
+  |->ff_ .. name:
+  |.endmacro
+  |
+  |.macro .ffunc_1, name
+  |->ff_ .. name:
+  |  ldr CARG1, [BASE]
+  |   cmp NARGS8:RC, #8
+  |   blo ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_2, name
+  |->ff_ .. name:
+  |  ldp CARG1, CARG2, [BASE]
+  |   cmp NARGS8:RC, #16
+  |   blo ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_n, name
+  |  .ffunc name
+  |  ldr CARG1, [BASE]
+  |   cmp NARGS8:RC, #8
+  |  ldr FARG1, [BASE]
+  |   blo ->fff_fallback
+  |  checknum CARG1, ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_nn, name
+  |  .ffunc name
+  |  ldp CARG1, CARG2, [BASE]
+  |   cmp NARGS8:RC, #16
+  |  ldp FARG1, FARG2, [BASE]
+  |   blo ->fff_fallback
+  |  checknum CARG1, ->fff_fallback
+  |  checknum CARG2, ->fff_fallback
+  |.endmacro
+  |
+  |// Inlined GC threshold check. Caveat: uses CARG1 and CARG2.
+  |.macro ffgccheck
+  |  ldp CARG1, CARG2, GL->gc.total	// Assumes threshold follows total.
+  |  cmp CARG1, CARG2
+  |  blt >1
+  |  bl ->fff_gcstep
+  |1:
+  |.endmacro
+  |
+  |//-- Base library: checks -----------------------------------------------
+  |
+  |.ffunc_1 assert
+  |   ldr PC, [BASE, FRAME_PC]
+  |  mov_false TMP1
+  |  cmp CARG1, TMP1
+  |  bhs ->fff_fallback
+  |  str CARG1, [BASE, #-16]
+  |  sub RB, BASE, #8
+  |  subs RA, NARGS8:RC, #8
+  |   add RC, NARGS8:RC, #8		// Compute (nresults+1)*8.
+  |  cbz RA, ->fff_res			// Done if exactly 1 argument.
+  |1:
+  |   ldr CARG1, [RB, #16]
+  |  sub RA, RA, #8
+  |   str CARG1, [RB], #8
+  |  cbnz RA, <1
+  |  b ->fff_res
+  |
+  |.ffunc_1 type
+  |  mov TMP0, #~LJ_TISNUM
+  |  asr ITYPE, CARG1, #47
+  |  cmn ITYPE, #~LJ_TISNUM
+  |  csinv TMP1, TMP0, ITYPE, lo
+  |  add TMP1, TMP1, #offsetof(GCfuncC, upvalue)/8
+  |  ldr CARG1, [CFUNC:CARG3, TMP1, lsl #3]
+  |  b ->fff_restv
+  |
+  |//-- Base library: getters and setters ---------------------------------
+  |
+  |.ffunc_1 getmetatable
+  |  asr ITYPE, CARG1, #47
+  |  cmn ITYPE, #-LJ_TTAB
+  |  ccmn ITYPE, #-LJ_TUDATA, #4, ne
+  |   and TAB:CARG1, CARG1, #LJ_GCVMASK
+  |  bne >6
+  |1:  // Field metatable must be at same offset for GCtab and GCudata!
+  |  ldr TAB:RB, TAB:CARG1->metatable
+  |2:
+  |   mov CARG1, TISNIL
+  |   ldr STR:RC, GL->gcroot[GCROOT_MMNAME+MM_metatable]
+  |  cbz TAB:RB, ->fff_restv
+  |  ldr TMP1w, TAB:RB->hmask
+  |   ldr TMP2w, STR:RC->sid
+  |    ldr NODE:CARG3, TAB:RB->node
+  |  and TMP1w, TMP1w, TMP2w		// idx = str->sid & tab->hmask
+  |  add TMP1, TMP1, TMP1, lsl #1
+  |  movn CARG4, #~LJ_TSTR
+  |    add NODE:CARG3, NODE:CARG3, TMP1, lsl #3  // node = tab->node + idx*3*8
+  |  add CARG4, STR:RC, CARG4, lsl #47	// Tagged key to look for.
+  |3:  // Rearranged logic, because we expect _not_ to find the key.
+  |  ldp CARG1, TMP0, NODE:CARG3->val
+  |   ldr NODE:CARG3, NODE:CARG3->next
+  |  cmp TMP0, CARG4
+  |  beq >5
+  |  cbnz NODE:CARG3, <3
+  |4:
+  |  mov CARG1, RB			// Use metatable as default result.
+  |  movk CARG1, #(LJ_TTAB>>1)&0xffff, lsl #48
+  |  b ->fff_restv
+  |5:
+  |  cmp TMP0, TISNIL
+  |  bne ->fff_restv
+  |  b <4
+  |
+  |6:
+  |  movn TMP0, #~LJ_TISNUM
+  |  cmp ITYPE, TMP0
+  |  csel ITYPE, ITYPE, TMP0, hs
+  |  sub TMP1, GL, ITYPE, lsl #3
+  |  ldr TAB:RB, [TMP1, #offsetof(global_State, gcroot[GCROOT_BASEMT])-8]
+  |  b <2
+  |
+  |.ffunc_2 setmetatable
+  |  // Fast path: no mt for table yet and not clearing the mt.
+  |  checktp TMP1, CARG1, LJ_TTAB, ->fff_fallback
+  |   ldr TAB:TMP0, TAB:TMP1->metatable
+  |  asr ITYPE, CARG2, #47
+  |   ldrb TMP2w, TAB:TMP1->marked
+  |  cmn ITYPE, #-LJ_TTAB
+  |    and TAB:CARG2, CARG2, #LJ_GCVMASK
+  |  ccmp TAB:TMP0, #0, #0, eq
+  |  bne ->fff_fallback
+  |    str TAB:CARG2, TAB:TMP1->metatable
+  |   tbz TMP2w, #2, ->fff_restv	// isblack(table)
+  |  barrierback TAB:TMP1, TMP2w, TMP0
+  |  b ->fff_restv
+  |
+  |.ffunc rawget
+  |  ldr CARG2, [BASE]
+  |   cmp NARGS8:RC, #16
+  |   blo ->fff_fallback
+  |  checktab CARG2, ->fff_fallback
+  |   mov CARG1, L
+  |   add CARG3, BASE, #8
+  |  bl extern lj_tab_get  // (lua_State *L, GCtab *t, cTValue *key)
+  |  // Returns cTValue *.
+  |  ldr CARG1, [CRET1]
+  |  b ->fff_restv
+  |
+  |//-- Base library: conversions ------------------------------------------
+  |
+  |.ffunc tonumber
+  |  // Only handles the number case inline (without a base argument).
+  |  ldr CARG1, [BASE]
+  |   cmp NARGS8:RC, #8
+  |   bne ->fff_fallback
+  |  checknumber CARG1, ->fff_fallback
+  |  b ->fff_restv
+  |
+  |.ffunc_1 tostring
+  |  // Only handles the string or number case inline.
+  |  asr ITYPE, CARG1, #47
+  |  cmn ITYPE, #-LJ_TSTR
+  |  // A __tostring method in the string base metatable is ignored.
+  |  beq ->fff_restv
+  |  // Handle numbers inline, unless a number base metatable is present.
+  |  ldr TMP1, GL->gcroot[GCROOT_BASEMT_NUM]
+  |   str BASE, L->base
+  |  cmn ITYPE, #-LJ_TISNUM
+  |  ccmp TMP1, #0, #0, ls
+  |   str PC, SAVE_PC			// Redundant (but a defined value).
+  |  bne ->fff_fallback
+  |  ffgccheck
+  |  mov CARG1, L
+  |  mov CARG2, BASE
+  |  bl extern lj_strfmt_number		// (lua_State *L, cTValue *o)
+  |  // Returns GCstr *.
+  |   movn TMP1, #~LJ_TSTR
+  |  ldr BASE, L->base
+  |   add CARG1, CARG1, TMP1, lsl #47
+  |  b ->fff_restv
+  |
+  |//-- Base library: iterators -------------------------------------------
+  |
+  |.ffunc_1 next
+  |  checktp CARG1, LJ_TTAB, ->fff_fallback
+  |  str TISNIL, [BASE, NARGS8:RC]	// Set missing 2nd arg to nil.
+  |  ldr PC, [BASE, FRAME_PC]
+  |  add CARG2, BASE, #8
+  |  sub CARG3, BASE, #16
+  |  bl extern lj_tab_next		// (GCtab *t, cTValue *key, TValue *o)
+  |  // Returns 1=found, 0=end, -1=error.
+  |   mov RC, #(2+1)*8
+  |  tbnz CRET1w, #31, ->fff_fallback	// Invalid key.
+  |  cbnz CRET1, ->fff_res		// Found key/value.
+  |  // End of traversal: return nil.
+  |  str TISNIL, [BASE, #-16]
+  |  b ->fff_res1
+  |
+  |.ffunc_1 pairs
+  |  checktp TMP1, CARG1, LJ_TTAB, ->fff_fallback
+#if LJ_52
+  |  ldr TAB:CARG2, TAB:TMP1->metatable
+#endif
+  |   ldr CFUNC:CARG4, CFUNC:CARG3->upvalue[0]
+  |    ldr PC, [BASE, FRAME_PC]
+#if LJ_52
+  |  cbnz TAB:CARG2, ->fff_fallback
+#endif
+  |  mov RC, #(3+1)*8
+  |  stp CARG1, TISNIL, [BASE, #-8]
+  |   str CFUNC:CARG4, [BASE, #-16]
+  |  b ->fff_res
+  |
+  |.ffunc_2 ipairs_aux
+  |  checktab CARG1, ->fff_fallback
+  |   checkint CARG2, ->fff_fallback
+  |  ldr TMP1w, TAB:CARG1->asize
+  |   ldr CARG3, TAB:CARG1->array
+  |    ldr TMP0w, TAB:CARG1->hmask
+  |  add CARG2w, CARG2w, #1
+  |  cmp CARG2w, TMP1w
+  |    ldr PC, [BASE, FRAME_PC]
+  |     add TMP2, CARG2, TISNUM
+  |   mov RC, #(0+1)*8
+  |     str TMP2, [BASE, #-16]
+  |  bhs >2				// Not in array part?
+  |  ldr TMP0, [CARG3, CARG2, lsl #3]
+  |1:
+  |   mov TMP1, #(2+1)*8
+  |   cmp TMP0, TISNIL
+  |  str TMP0, [BASE, #-8]
+  |   csel RC, RC, TMP1, eq
+  |  b ->fff_res
+  |2:  // Check for empty hash part first. Otherwise call C function.
+  |  cbz TMP0w, ->fff_res
+  |  bl extern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |  // Returns cTValue * or NULL.
+  |  cbz CRET1, ->fff_res
+  |  ldr TMP0, [CRET1]
+  |  b <1
+  |
+  |.ffunc_1 ipairs
+  |  checktp TMP1, CARG1, LJ_TTAB, ->fff_fallback
+#if LJ_52
+  |  ldr TAB:CARG2, TAB:TMP1->metatable
+#endif
+  |   ldr CFUNC:CARG4, CFUNC:CARG3->upvalue[0]
+  |    ldr PC, [BASE, FRAME_PC]
+#if LJ_52
+  |  cbnz TAB:CARG2, ->fff_fallback
+#endif
+  |  mov RC, #(3+1)*8
+  |  stp CARG1, TISNUM, [BASE, #-8]
+  |   str CFUNC:CARG4, [BASE, #-16]
+  |  b ->fff_res
+  |
+  |//-- Base library: catch errors ----------------------------------------
+  |
+  |.ffunc pcall
+  |   cmp NARGS8:RC, #8
+  |  ldrb TMP0w, GL->hookmask
+  |   blo ->fff_fallback
+  |   sub NARGS8:RC, NARGS8:RC, #8
+  |    mov RB, BASE
+  |    add BASE, BASE, #16
+  |  ubfx TMP0w, TMP0w, #HOOK_ACTIVE_SHIFT, #1
+  |  add PC, TMP0, #16+FRAME_PCALL
+  |   beq ->vm_call_dispatch
+  |1:
+  |   add TMP2, BASE, NARGS8:RC
+  |2:
+  |   ldr TMP0, [TMP2, #-16]
+  |   str TMP0, [TMP2, #-8]!
+  |  cmp TMP2, BASE
+  |  bne <2
+  |  b ->vm_call_dispatch
+  |
+  |.ffunc xpcall
+  |     ldp CARG1, CARG2, [BASE]
+  |  ldrb TMP0w, GL->hookmask
+  |   subs NARGS8:TMP1, NARGS8:RC, #16
+  |   blo ->fff_fallback
+  |    mov RB, BASE
+  |     asr ITYPE, CARG2, #47
+  |  ubfx TMP0w, TMP0w, #HOOK_ACTIVE_SHIFT, #1
+  |     cmn ITYPE, #-LJ_TFUNC
+  |  add PC, TMP0, #24+FRAME_PCALL
+  |     bne ->fff_fallback		// Traceback must be a function.
+  |   mov NARGS8:RC, NARGS8:TMP1
+  |    add BASE, BASE, #24
+  |     stp CARG2, CARG1, [RB]		// Swap function and traceback.
+  |   cbz NARGS8:RC, ->vm_call_dispatch
+  |  b <1
+  |
+  |//-- Coroutine library --------------------------------------------------
+  |
+  |.macro coroutine_resume_wrap, resume
+  |.if resume
+  |.ffunc_1 coroutine_resume
+  |  checktp CARG1, LJ_TTHREAD, ->fff_fallback
+  |.else
+  |.ffunc coroutine_wrap_aux
+  |  ldr L:CARG1, CFUNC:CARG3->upvalue[0].gcr
+  |  and L:CARG1, CARG1, #LJ_GCVMASK
+  |.endif
+  |   ldr PC, [BASE, FRAME_PC]
+  |     str BASE, L->base
+  |  ldp RB, CARG2, L:CARG1->base
+  |   ldrb TMP1w, L:CARG1->status
+  |  add TMP0, CARG2, TMP1
+  |   str PC, SAVE_PC
+  |  cmp TMP0, RB
+  |  beq ->fff_fallback
+  |   cmp TMP1, #LUA_YIELD
+  |    add TMP0, CARG2, #8
+  |   csel CARG2, CARG2, TMP0, hs
+  |   ldr CARG4, L:CARG1->maxstack
+  |   add CARG3, CARG2, NARGS8:RC
+  |    ldr RB, L:CARG1->cframe
+  |   ccmp CARG3, CARG4, #2, ls
+  |    ccmp RB, #0, #2, ls
+  |    bhi ->fff_fallback
+  |.if resume
+  |  sub CARG3, CARG3, #8		// Keep resumed thread in stack for GC.
+  |  add BASE, BASE, #8
+  |  sub NARGS8:RC, NARGS8:RC, #8
+  |.endif
+  |  str CARG3, L:CARG1->top
+  |  str BASE, L->top
+  |  cbz NARGS8:RC, >3
+  |2:  // Move args to coroutine.
+  |   ldr TMP0, [BASE, RB]
+  |  cmp RB, NARGS8:RC
+  |   str TMP0, [CARG2, RB]
+  |   add RB, RB, #8
+  |  bne <2
+  |3:
+  |  mov CARG3, #0
+  |   mov L:RA, L:CARG1
+  |  mov CARG4, #0
+  |  bl ->vm_resume			// (lua_State *L, TValue *base, 0, 0)
+  |  // Returns thread status.
+  |4:
+  |  ldp CARG3, CARG4, L:RA->base
+  |   cmp CRET1, #LUA_YIELD
+  |  ldr BASE, L->base
+  |    str L, GL->cur_L
+  |    st_vmstate ST_INTERP
+  |   bhi >8
+  |  sub RC, CARG4, CARG3
+  |   ldr CARG1, L->maxstack
+  |   add CARG2, BASE, RC
+  |  cbz RC, >6				// No results?
+  |  cmp CARG2, CARG1
+  |   mov RB, #0
+  |  bhi >9				// Need to grow stack?
+  |
+  |  sub CARG4, RC, #8
+  |   str CARG3, L:RA->top		// Clear coroutine stack.
+  |5:  // Move results from coroutine.
+  |   ldr TMP0, [CARG3, RB]
+  |  cmp RB, CARG4
+  |   str TMP0, [BASE, RB]
+  |   add RB, RB, #8
+  |  bne <5
+  |6:
+  |.if resume
+  |  mov_true TMP1
+  |   add RC, RC, #16
+  |7:
+  |  str TMP1, [BASE, #-8]		// Prepend true/false to results.
+  |   sub RA, BASE, #8
+  |.else
+  |   mov RA, BASE
+  |   add RC, RC, #8
+  |.endif
+  |  ands CARG1, PC, #FRAME_TYPE
+  |   str PC, SAVE_PC
+  |   str RCw, SAVE_MULTRES
+  |  beq ->BC_RET_Z
+  |  b ->vm_return
+  |
+  |8:  // Coroutine returned with error (at co->top-1).
+  |.if resume
+  |  ldr TMP0, [CARG4, #-8]!
+  |   mov_false TMP1
+  |    mov RC, #(2+1)*8
+  |  str CARG4, L:RA->top		// Remove error from coroutine stack.
+  |  str TMP0, [BASE]			// Copy error message.
+  |  b <7
+  |.else
+  |  mov CARG1, L
+  |  mov CARG2, L:RA
+  |  bl extern lj_ffh_coroutine_wrap_err  // (lua_State *L, lua_State *co)
+  |  // Never returns.
+  |.endif
+  |
+  |9:  // Handle stack expansion on return from yield.
+  |  mov CARG1, L
+  |  lsr CARG2, RC, #3
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  mov CRET1, #0
+  |  b <4
+  |.endmacro
+  |
+  |  coroutine_resume_wrap 1		// coroutine.resume
+  |  coroutine_resume_wrap 0		// coroutine.wrap
+  |
+  |.ffunc coroutine_yield
+  |  ldr TMP0, L->cframe
+  |   add TMP1, BASE, NARGS8:RC
+  |    mov CRET1, #LUA_YIELD
+  |   stp BASE, TMP1, L->base
+  |  tbz TMP0, #0, ->fff_fallback
+  |   str xzr, L->cframe
+  |    strb CRET1w, L->status
+  |  b ->vm_leave_unw
+  |
+  |//-- Math library -------------------------------------------------------
+  |
+  |.macro math_round, func, round
+  |  .ffunc math_ .. func
+  |  ldr CARG1, [BASE]
+  |   cmp NARGS8:RC, #8
+  |  ldr d0, [BASE]
+  |   blo ->fff_fallback
+  |  cmp TISNUMhi, CARG1, lsr #32
+  |  beq ->fff_restv
+  |  blo ->fff_fallback
+  |  round d0, d0
+  |  b ->fff_resn
+  |.endmacro
+  |
+  |  math_round floor, frintm
+  |  math_round ceil, frintp
+  |
+  |.ffunc_1 math_abs
+  |  checknumber CARG1, ->fff_fallback
+  |  and CARG1, CARG1, #U64x(7fffffff,ffffffff)
+  |  bne ->fff_restv
+  |  eor CARG2w, CARG1w, CARG1w, asr #31
+  |   movz CARG3, #0x41e0, lsl #48	// 2^31.
+  |  subs CARG1w, CARG2w, CARG1w, asr #31
+  |   add CARG1, CARG1, TISNUM
+  |  csel CARG1, CARG1, CARG3, pl
+  |  // Fallthrough.
+  |
+  |->fff_restv:
+  |  // CARG1 = TValue result.
+  |  ldr PC, [BASE, FRAME_PC]
+  |  str CARG1, [BASE, #-16]
+  |->fff_res1:
+  |  // PC = return.
+  |  mov RC, #(1+1)*8
+  |->fff_res:
+  |  // RC = (nresults+1)*8, PC = return.
+  |  ands CARG1, PC, #FRAME_TYPE
+  |   str RCw, SAVE_MULTRES
+  |   sub RA, BASE, #16
+  |  bne ->vm_return
+  |  ldr INSw, [PC, #-4]
+  |  decode_RB RB, INS
+  |5:
+  |  cmp RC, RB, lsl #3			// More results expected?
+  |  blo >6
+  |  decode_RA TMP1, INS
+  |  // Adjust BASE. KBASE is assumed to be set for the calling frame.
+  |  sub BASE, RA, TMP1, lsl #3
+  |  ins_next
+  |
+  |6:  // Fill up results with nil.
+  |  add TMP1, RA, RC
+  |   add RC, RC, #8
+  |  str TISNIL, [TMP1, #-8]
+  |  b <5
+  |
+  |.macro math_extern, func
+  |  .ffunc_n math_ .. func
+  |  bl extern func
+  |  b ->fff_resn
+  |.endmacro
+  |
+  |.macro math_extern2, func
+  |  .ffunc_nn math_ .. func
+  |  bl extern func
+  |  b ->fff_resn
+  |.endmacro
+  |
+  |.ffunc_n math_sqrt
+  |  fsqrt d0, d0
+  |->fff_resn:
+  |  ldr PC, [BASE, FRAME_PC]
+  |  str d0, [BASE, #-16]
+  |  b ->fff_res1
+  |
+  |.ffunc math_log
+  |  ldr CARG1, [BASE]
+  |   cmp NARGS8:RC, #8
+  |  ldr FARG1, [BASE]
+  |   bne ->fff_fallback			// Need exactly 1 argument.
+  |  checknum CARG1, ->fff_fallback
+  |  bl extern log
+  |  b ->fff_resn
+  |
+  |  math_extern log10
+  |  math_extern exp
+  |  math_extern sin
+  |  math_extern cos
+  |  math_extern tan
+  |  math_extern asin
+  |  math_extern acos
+  |  math_extern atan
+  |  math_extern sinh
+  |  math_extern cosh
+  |  math_extern tanh
+  |  math_extern2 pow
+  |  math_extern2 atan2
+  |  math_extern2 fmod
+  |
+  |.ffunc_2 math_ldexp
+  |  ldr FARG1, [BASE]
+  |  checknum CARG1, ->fff_fallback
+  |  checkint CARG2, ->fff_fallback
+  |  sxtw CARG1, CARG2w
+  |  bl extern ldexp			// (double x, int exp)
+  |  b ->fff_resn
+  |
+  |.ffunc_n math_frexp
+  |  add CARG1, sp, TMPDofs
+  |  bl extern frexp
+  |   ldr CARG2w, TMPD
+  |    ldr PC, [BASE, FRAME_PC]
+  |  str d0, [BASE, #-16]
+  |    mov RC, #(2+1)*8
+  |   add CARG2, CARG2, TISNUM
+  |   str CARG2, [BASE, #-8]
+  |  b ->fff_res
+  |
+  |.ffunc_n math_modf
+  |  sub CARG1, BASE, #16
+  |   ldr PC, [BASE, FRAME_PC]
+  |  bl extern modf
+  |   mov RC, #(2+1)*8
+  |  str d0, [BASE, #-8]
+  |  b ->fff_res
+  |
+  |.macro math_minmax, name, cond, fcond
+  |  .ffunc_1 name
+  |   add RB, BASE, RC
+  |   add RA, BASE, #8
+  |  checkint CARG1, >4
+  |1:  // Handle integers.
+  |  ldr CARG2, [RA]
+  |   cmp RA, RB
+  |   bhs ->fff_restv
+  |  checkint CARG2, >3
+  |  cmp CARG1w, CARG2w
+  |   add RA, RA, #8
+  |  csel CARG1, CARG2, CARG1, cond
+  |  b <1
+  |3:  // Convert intermediate result to number and continue below.
+  |  scvtf d0, CARG1w
+  |  blo ->fff_fallback
+  |  ldr d1, [RA]
+  |  b >6
+  |
+  |4:
+  |  ldr d0, [BASE]
+  |  blo ->fff_fallback
+  |5:  // Handle numbers.
+  |  ldr CARG2, [RA]
+  |  ldr d1, [RA]
+  |   cmp RA, RB
+  |   bhs ->fff_resn
+  |  checknum CARG2, >7
+  |6:
+  |  fcmp d0, d1
+  |   add RA, RA, #8
+  |  fcsel d0, d1, d0, fcond
+  |  b <5
+  |7:  // Convert integer to number and continue above.
+  |  scvtf d1, CARG2w
+  |  blo ->fff_fallback
+  |  b <6
+  |.endmacro
+  |
+  |  math_minmax math_min, gt, pl
+  |  math_minmax math_max, lt, le
+  |
+  |//-- String library -----------------------------------------------------
+  |
+  |.ffunc string_byte			// Only handle the 1-arg case here.
+  |  ldp PC, CARG1, [BASE, FRAME_PC]
+  |   cmp NARGS8:RC, #8
+  |  asr ITYPE, CARG1, #47
+  |  ccmn ITYPE, #-LJ_TSTR, #0, eq
+  |   and STR:CARG1, CARG1, #LJ_GCVMASK
+  |  bne ->fff_fallback
+  |  ldrb TMP0w, STR:CARG1[1]		// Access is always ok (NUL at end).
+  |   ldr CARG3w, STR:CARG1->len
+  |  add TMP0, TMP0, TISNUM
+  |  str TMP0, [BASE, #-16]
+  |  mov RC, #(0+1)*8
+  |   cbz CARG3, ->fff_res
+  |  b ->fff_res1
+  |
+  |.ffunc string_char			// Only handle the 1-arg case here.
+  |  ffgccheck
+  |  ldp PC, CARG1, [BASE, FRAME_PC]
+  |  cmp CARG1w, #255
+  |   ccmp NARGS8:RC, #8, #0, ls		// Need exactly 1 argument.
+  |  bne ->fff_fallback
+  |  checkint CARG1, ->fff_fallback
+  |  mov CARG3, #1
+  |  // Point to the char inside the integer in the stack slot.
+  |.if ENDIAN_LE
+  |  mov CARG2, BASE
+  |.else
+  |  add CARG2, BASE, #7
+  |.endif
+  |->fff_newstr:
+  |  // CARG2 = str, CARG3 = len.
+  |   str BASE, L->base
+  |  mov CARG1, L
+  |   str PC, SAVE_PC
+  |  bl extern lj_str_new		// (lua_State *L, char *str, size_t l)
+  |->fff_resstr:
+  |  // Returns GCstr *.
+  |  ldr BASE, L->base
+  |   movn TMP1, #~LJ_TSTR
+  |  add CARG1, CARG1, TMP1, lsl #47
+  |  b ->fff_restv
+  |
+  |.ffunc string_sub
+  |  ffgccheck
+  |  ldr CARG1, [BASE]
+  |    ldr CARG3, [BASE, #16]
+  |   cmp NARGS8:RC, #16
+  |    movn RB, #0
+  |   beq >1
+  |   blo ->fff_fallback
+  |    checkint CARG3, ->fff_fallback
+  |    sxtw RB, CARG3w
+  |1:
+  |  ldr CARG2, [BASE, #8]
+  |  checkstr CARG1, ->fff_fallback
+  |   ldr TMP1w, STR:CARG1->len
+  |  checkint CARG2, ->fff_fallback
+  |  sxtw CARG2, CARG2w
+  |  // CARG1 = str, TMP1 = str->len, CARG2 = start, RB = end
+  |   add TMP2, RB, TMP1
+  |   cmp RB, #0
+  |  add TMP0, CARG2, TMP1
+  |   csinc RB, RB, TMP2, ge		// if (end < 0) end += len+1
+  |  cmp CARG2, #0
+  |  csinc CARG2, CARG2, TMP0, ge	// if (start < 0) start += len+1
+  |   cmp RB, #0
+  |   csel RB, RB, xzr, ge		// if (end < 0) end = 0
+  |  cmp CARG2, #1
+  |  csinc CARG2, CARG2, xzr, ge	// if (start < 1) start = 1
+  |   cmp RB, TMP1
+  |   csel RB, RB, TMP1, le		// if (end > len) end = len
+  |  add CARG1, STR:CARG1, #sizeof(GCstr)-1
+  |   subs CARG3, RB, CARG2		// len = end - start
+  |  add CARG2, CARG1, CARG2
+  |   add CARG3, CARG3, #1		// len += 1
+  |   bge ->fff_newstr
+  |  add STR:CARG1, GL, #offsetof(global_State, strempty)
+  |   movn TMP1, #~LJ_TSTR
+  |  add CARG1, CARG1, TMP1, lsl #47
+  |  b ->fff_restv
+  |
+  |.macro ffstring_op, name
+  |  .ffunc string_ .. name
+  |  ffgccheck
+  |  ldr CARG2, [BASE]
+  |   cmp NARGS8:RC, #8
+  |  asr ITYPE, CARG2, #47
+  |  ccmn ITYPE, #-LJ_TSTR, #0, hs
+  |   and STR:CARG2, CARG2, #LJ_GCVMASK
+  |  bne ->fff_fallback
+  |  ldr TMP0, GL->tmpbuf.b
+  |   add SBUF:CARG1, GL, #offsetof(global_State, tmpbuf)
+  |   str BASE, L->base
+  |   str PC, SAVE_PC
+  |   str L, GL->tmpbuf.L
+  |  str TMP0, GL->tmpbuf.w
+  |  bl extern lj_buf_putstr_ .. name
+  |  bl extern lj_buf_tostr
+  |  b ->fff_resstr
+  |.endmacro
+  |
+  |ffstring_op reverse
+  |ffstring_op lower
+  |ffstring_op upper
+  |
+  |//-- Bit library --------------------------------------------------------
+  |
+  |// FP number to bit conversion for soft-float. Clobbers CARG1-CARG3
+  |->vm_tobit_fb:
+  |  bls ->fff_fallback
+  |  add CARG2, CARG1, CARG1
+  |  mov CARG3, #1076
+  |  sub CARG3, CARG3, CARG2, lsr #53
+  |  cmp CARG3, #53
+  |  bhi >1
+  |  and CARG2, CARG2, #U64x(001fffff,ffffffff)
+  |  orr CARG2, CARG2, #U64x(00200000,00000000)
+  |   cmp CARG1, #0
+  |  lsr CARG2, CARG2, CARG3
+  |   cneg CARG1w, CARG2w, mi
+  |  br lr
+  |1:
+  |  mov CARG1w, #0
+  |  br lr
+  |
+  |.macro .ffunc_bit, name
+  |  .ffunc_1 bit_..name
+  |  adr lr, >1
+  |  checkint CARG1, ->vm_tobit_fb
+  |1:
+  |.endmacro
+  |
+  |.macro .ffunc_bit_op, name, ins
+  |  .ffunc_bit name
+  |  mov RA, #8
+  |  mov TMP0w, CARG1w
+  |  adr lr, >2
+  |1:
+  |  ldr CARG1, [BASE, RA]
+  |   cmp RA, NARGS8:RC
+  |    add RA, RA, #8
+  |   bge >9
+  |  checkint CARG1, ->vm_tobit_fb
+  |2:
+  |  ins TMP0w, TMP0w, CARG1w
+  |  b <1
+  |.endmacro
+  |
+  |.ffunc_bit_op band, and
+  |.ffunc_bit_op bor, orr
+  |.ffunc_bit_op bxor, eor
+  |
+  |.ffunc_bit tobit
+  |  mov TMP0w, CARG1w
+  |9:  // Label reused by .ffunc_bit_op users.
+  |  add CARG1, TMP0, TISNUM
+  |  b ->fff_restv
+  |
+  |.ffunc_bit bswap
+  |  rev TMP0w, CARG1w
+  |  add CARG1, TMP0, TISNUM
+  |  b ->fff_restv
+  |
+  |.ffunc_bit bnot
+  |  mvn TMP0w, CARG1w
+  |  add CARG1, TMP0, TISNUM
+  |  b ->fff_restv
+  |
+  |.macro .ffunc_bit_sh, name, ins, shmod
+  |  .ffunc bit_..name
+  |  ldp TMP0, CARG1, [BASE]
+  |   cmp NARGS8:RC, #16
+  |   blo ->fff_fallback
+  |  adr lr, >1
+  |  checkint CARG1, ->vm_tobit_fb
+  |1:
+  |.if shmod == 0
+  |  mov TMP1, CARG1
+  |.else
+  |  neg TMP1, CARG1
+  |.endif
+  |  mov CARG1, TMP0
+  |  adr lr, >2
+  |  checkint CARG1, ->vm_tobit_fb
+  |2:
+  |  ins TMP0w, CARG1w, TMP1w
+  |  add CARG1, TMP0, TISNUM
+  |  b ->fff_restv
+  |.endmacro
+  |
+  |.ffunc_bit_sh lshift, lsl, 0
+  |.ffunc_bit_sh rshift, lsr, 0
+  |.ffunc_bit_sh arshift, asr, 0
+  |.ffunc_bit_sh rol, ror, 1
+  |.ffunc_bit_sh ror, ror, 0
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->fff_fallback:			// Call fast function fallback handler.
+  |  // BASE = new base, RC = nargs*8
+  |   ldp CFUNC:CARG3, PC, [BASE, FRAME_FUNC]	// Fallback may overwrite PC.
+  |  ldr TMP2, L->maxstack
+  |  add TMP1, BASE, NARGS8:RC
+  |  stp BASE, TMP1, L->base
+  |   and CFUNC:CARG3, CARG3, #LJ_GCVMASK
+  |  add TMP1, TMP1, #8*LUA_MINSTACK
+  |   ldr CARG3, CFUNC:CARG3->f
+  |    str PC, SAVE_PC			// Redundant (but a defined value).
+  |  cmp TMP1, TMP2
+  |   mov CARG1, L
+  |  bhi >5				// Need to grow stack.
+  |   blr CARG3				// (lua_State *L)
+  |  // Either throws an error, or recovers and returns -1, 0 or nresults+1.
+  |   ldr BASE, L->base
+  |  cmp CRET1w, #0
+  |   lsl RC, CRET1, #3
+  |   sub RA, BASE, #16
+  |  bgt ->fff_res			// Returned nresults+1?
+  |1:  // Returned 0 or -1: retry fast path.
+  |   ldr CARG1, L->top
+  |    ldr CFUNC:CARG3, [BASE, FRAME_FUNC]
+  |   sub NARGS8:RC, CARG1, BASE
+  |  bne ->vm_call_tail			// Returned -1?
+  |    and CFUNC:CARG3, CARG3, #LJ_GCVMASK
+  |  ins_callt				// Returned 0: retry fast path.
+  |
+  |// Reconstruct previous base for vmeta_call during tailcall.
+  |->vm_call_tail:
+  |  ands TMP0, PC, #FRAME_TYPE
+  |   and TMP1, PC, #~FRAME_TYPEP
+  |  bne >3
+  |  ldrb RAw, [PC, #-4+OFS_RA]
+  |  lsl RA, RA, #3
+  |  add TMP1, RA, #16
+  |3:
+  |  sub RB, BASE, TMP1
+  |  b ->vm_call_dispatch		// Resolve again for tailcall.
+  |
+  |5:  // Grow stack for fallback handler.
+  |  mov CARG2, #LUA_MINSTACK
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  ldr BASE, L->base
+  |  cmp CARG1, CARG1			// Set zero-flag to force retry.
+  |  b <1
+  |
+  |->fff_gcstep:			// Call GC step function.
+  |  // BASE = new base, RC = nargs*8
+  |   add CARG2, BASE, NARGS8:RC	// Calculate L->top.
+  |  mov RA, lr
+  |   stp BASE, CARG2, L->base
+  |   str PC, SAVE_PC			// Redundant (but a defined value).
+  |  mov CARG1, L
+  |  bl extern lj_gc_step		// (lua_State *L)
+  |  ldp BASE, CARG2, L->base
+  |   ldr CFUNC:CARG3, [BASE, FRAME_FUNC]
+  |  mov lr, RA				// Help return address predictor.
+  |  sub NARGS8:RC, CARG2, BASE		// Calculate nargs*8.
+  |   and CFUNC:CARG3, CARG3, #LJ_GCVMASK
+  |  ret
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Special dispatch targets -------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_record:				// Dispatch target for recording phase.
+  |.if JIT
+  |  ldrb CARG1w, GL->hookmask
+  |  tst CARG1, #HOOK_VMEVENT		// No recording while in vmevent.
+  |  bne >5
+  |  // Decrement the hookcount for consistency, but always do the call.
+  |   ldr CARG2w, GL->hookcount
+  |  tst CARG1, #HOOK_ACTIVE
+  |  bne >1
+  |   sub CARG2w, CARG2w, #1
+  |  tst CARG1, #LUA_MASKLINE|LUA_MASKCOUNT
+  |  beq >1
+  |   str CARG2w, GL->hookcount
+  |  b >1
+  |.endif
+  |
+  |->vm_rethook:			// Dispatch target for return hooks.
+  |  ldrb TMP2w, GL->hookmask
+  |  tbz TMP2w, #HOOK_ACTIVE_SHIFT, >1	// Hook already active?
+  |5:  // Re-dispatch to static ins.
+  |  ldr TMP0, [TMP1, #GG_G2DISP+GG_DISP2STATIC]
+  |  br TMP0
+  |
+  |->vm_inshook:			// Dispatch target for instr/line hooks.
+  |  ldrb TMP2w, GL->hookmask
+  |   ldr TMP3w, GL->hookcount
+  |  tbnz TMP2w, #HOOK_ACTIVE_SHIFT, <5	// Hook already active?
+  |  tst TMP2w, #LUA_MASKLINE|LUA_MASKCOUNT
+  |  beq <5
+  |   sub TMP3w, TMP3w, #1
+  |   str TMP3w, GL->hookcount
+  |   cbz TMP3w, >1
+  |  tbz TMP2w, #LUA_HOOKLINE, <5
+  |1:
+  |  mov CARG1, L
+  |   str BASE, L->base
+  |  mov CARG2, PC
+  |  // SAVE_PC must hold the _previous_ PC. The callee updates it with PC.
+  |  bl extern lj_dispatch_ins		// (lua_State *L, const BCIns *pc)
+  |3:
+  |  ldr BASE, L->base
+  |4:  // Re-dispatch to static ins.
+  |  ldr INSw, [PC, #-4]
+  |  add TMP1, GL, INS, uxtb #3
+  |   decode_RA RA, INS
+  |  ldr TMP0, [TMP1, #GG_G2DISP+GG_DISP2STATIC]
+  |   decode_RD RC, INS
+  |  br TMP0
+  |
+  |->cont_hook:				// Continue from hook yield.
+  |  ldr CARG1, [CARG4, #-40]
+  |   add PC, PC, #4
+  |  str CARG1w, SAVE_MULTRES		// Restore MULTRES for *M ins.
+  |  b <4
+  |
+  |->vm_hotloop:			// Hot loop counter underflow.
+  |.if JIT
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]  // Same as curr_topL(L).
+  |   add CARG1, GL, #GG_G2DISP+GG_DISP2J
+  |  and LFUNC:CARG3, CARG3, #LJ_GCVMASK
+  |   str PC, SAVE_PC
+  |  ldr CARG3, LFUNC:CARG3->pc
+  |   mov CARG2, PC
+  |   str L, [GL, #GL_J(L)]
+  |  ldrb CARG3w, [CARG3, #PC2PROTO(framesize)]
+  |   str BASE, L->base
+  |  add CARG3, BASE, CARG3, lsl #3
+  |  str CARG3, L->top
+  |  bl extern lj_trace_hot		// (jit_State *J, const BCIns *pc)
+  |  b <3
+  |.endif
+  |
+  |->vm_callhook:			// Dispatch target for call hooks.
+  |  mov CARG2, PC
+  |.if JIT
+  |  b >1
+  |.endif
+  |
+  |->vm_hotcall:			// Hot call counter underflow.
+  |.if JIT
+  |  orr CARG2, PC, #1
+  |1:
+  |.endif
+  |  add TMP1, BASE, NARGS8:RC
+  |   str PC, SAVE_PC
+  |   mov CARG1, L
+  |   sub RA, RA, BASE
+  |  stp BASE, TMP1, L->base
+  |  bl extern lj_dispatch_call		// (lua_State *L, const BCIns *pc)
+  |  // Returns ASMFunction.
+  |  ldp BASE, TMP1, L->base
+  |   str xzr, SAVE_PC			// Invalidate for subsequent line hook.
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]
+  |  add RA, BASE, RA
+  |  sub NARGS8:RC, TMP1, BASE
+  |   ldr INSw, [PC, #-4]
+  |  and LFUNC:CARG3, CARG3, #LJ_GCVMASK
+  |  br CRET1
+  |
+  |->cont_stitch:			// Trace stitching.
+  |.if JIT
+  |  // RA = resultptr, CARG4 = meta base
+  |   ldr RBw, SAVE_MULTRES
+  |  ldr INSw, [PC, #-4]
+  |    ldr TRACE:CARG3, [CARG4, #-40]	// Save previous trace.
+  |   subs RB, RB, #8
+  |  decode_RA RC, INS			// Call base.
+  |    and CARG3, CARG3, #LJ_GCVMASK
+  |   beq >2
+  |1:  // Move results down.
+  |  ldr CARG1, [RA]
+  |    add RA, RA, #8
+  |   subs RB, RB, #8
+  |  str CARG1, [BASE, RC, lsl #3]
+  |    add RC, RC, #1
+  |   bne <1
+  |2:
+  |   decode_RA RA, INS
+  |   decode_RB RB, INS
+  |   add RA, RA, RB
+  |3:
+  |   cmp RA, RC
+  |   bhi >9				// More results wanted?
+  |
+  |  ldrh RAw, TRACE:CARG3->traceno
+  |  ldrh RCw, TRACE:CARG3->link
+  |  cmp RCw, RAw
+  |  beq ->cont_nop			// Blacklisted.
+  |  cmp RCw, #0
+  |  bne =>BC_JLOOP			// Jump to stitched trace.
+  |
+  |  // Stitch a new trace to the previous trace.
+  |  mov CARG1, #GL_J(exitno)
+  |  str RAw, [GL, CARG1]
+  |  mov CARG1, #GL_J(L)
+  |  str L, [GL, CARG1]
+  |  str BASE, L->base
+  |  add CARG1, GL, #GG_G2J
+  |  mov CARG2, PC
+  |  bl extern lj_dispatch_stitch	// (jit_State *J, const BCIns *pc)
+  |  ldr BASE, L->base
+  |  b ->cont_nop
+  |
+  |9:  // Fill up results with nil.
+  |  str TISNIL, [BASE, RC, lsl #3]
+  |  add RC, RC, #1
+  |  b <3
+  |.endif
+  |
+  |->vm_profhook:			// Dispatch target for profiler hook.
+#if LJ_HASPROFILE
+  |  mov CARG1, L
+  |   str BASE, L->base
+  |  mov CARG2, PC
+  |  bl extern lj_dispatch_profile	// (lua_State *L, const BCIns *pc)
+  |  // HOOK_PROFILE is off again, so re-dispatch to dynamic instruction.
+  |  ldr BASE, L->base
+  |  sub PC, PC, #4
+  |  b ->cont_nop
+#endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Trace exit handler -------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro savex_, a, b
+  |  stp d..a, d..b, [sp, #a*8]
+  |  stp x..a, x..b, [sp, #32*8+a*8]
+  |.endmacro
+  |
+  |->vm_exit_handler:
+  |.if JIT
+  |  sub     sp, sp, #(64*8)
+  |  savex_, 0, 1
+  |  savex_, 2, 3
+  |  savex_, 4, 5
+  |  savex_, 6, 7
+  |  savex_, 8, 9
+  |  savex_, 10, 11
+  |  savex_, 12, 13
+  |  savex_, 14, 15
+  |  savex_, 16, 17
+  |  savex_, 18, 19
+  |  savex_, 20, 21
+  |  savex_, 22, 23
+  |  savex_, 24, 25
+  |  savex_, 26, 27
+  |  savex_, 28, 29
+  |  stp d30, d31, [sp, #30*8]
+  |  ldr CARG1, [sp, #64*8]	// Load original value of lr.
+  |   add CARG3, sp, #64*8	// Recompute original value of sp.
+  |    mv_vmstate CARG4w, EXIT
+  |   stp xzr, CARG3, [sp, #62*8]	// Store 0/sp in RID_LR/RID_SP.
+  |  sub CARG1, CARG1, lr
+  |   ldr L, GL->cur_L
+  |  lsr CARG1, CARG1, #2
+  |   ldr BASE, GL->jit_base
+  |  sub CARG1, CARG1, #2
+  |   ldr CARG2w, [lr]		// Load trace number.
+  |    st_vmstate CARG4w
+  |.if ENDIAN_BE
+  |   rev32 CARG2, CARG2
+  |.endif
+  |   str BASE, L->base
+  |  ubfx CARG2w, CARG2w, #5, #16
+  |  str CARG1w, [GL, #GL_J(exitno)]
+  |   str CARG2w, [GL, #GL_J(parent)]
+  |   str L, [GL, #GL_J(L)]
+  |  str xzr, GL->jit_base
+  |  add CARG1, GL, #GG_G2J
+  |  mov CARG2, sp
+  |  bl extern lj_trace_exit		// (jit_State *J, ExitState *ex)
+  |  // Returns MULTRES (unscaled) or negated error code.
+  |  ldr CARG2, L->cframe
+  |   ldr BASE, L->base
+  |  and sp, CARG2, #CFRAME_RAWMASK
+  |   ldr PC, SAVE_PC			// Get SAVE_PC.
+  |  str L, SAVE_L			// Set SAVE_L (on-trace resume/yield).
+  |  b >1
+  |.endif
+  |
+  |->vm_exit_interp:
+  |  // CARG1 = MULTRES or negated error code, BASE, PC and GL set.
+  |.if JIT
+  |  ldr L, SAVE_L
+  |1:
+  |  cmp CARG1w, #0
+  |  blt >9				// Check for error from exit.
+  |   lsl RC, CARG1, #3
+  |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+  |    movz TISNUM, #(LJ_TISNUM>>1)&0xffff, lsl #48
+  |    movz TISNUMhi, #(LJ_TISNUM>>1)&0xffff, lsl #16
+  |    movn TISNIL, #0
+  |  and LFUNC:CARG2, CARG2, #LJ_GCVMASK
+  |   str RCw, SAVE_MULTRES
+  |   str BASE, L->base
+  |  ldr CARG2, LFUNC:CARG2->pc
+  |   str xzr, GL->jit_base
+  |    mv_vmstate CARG4w, INTERP
+  |  ldr KBASE, [CARG2, #PC2PROTO(k)]
+  |  // Modified copy of ins_next which handles function header dispatch, too.
+  |  ldrb RBw, [PC, # OFS_OP]
+  |   ldr INSw, [PC], #4
+  |    st_vmstate CARG4w
+  |  cmp RBw, #BC_FUNCC+2		// Fast function?
+  |   add TMP1, GL, INS, uxtb #3
+  |  bhs >4
+  |2:
+  |  cmp RBw, #BC_FUNCF			// Function header?
+  |  add TMP0, GL, RB, uxtb #3
+  |  ldr RB, [TMP0, #GG_G2DISP]
+  |   decode_RA RA, INS
+  |   lsr TMP0, INS, #16
+  |   csel RC, TMP0, RC, lo
+  |   blo >5
+  |   ldr CARG3, [BASE, FRAME_FUNC]
+  |   sub RC, RC, #8
+  |   add RA, BASE, RA, lsl #3	// Yes: RA = BASE+framesize*8, RC = nargs*8
+  |   and LFUNC:CARG3, CARG3, #LJ_GCVMASK
+  |5:
+  |  br RB
+  |
+  |4:  // Check frame below fast function.
+  |  ldr CARG1, [BASE, FRAME_PC]
+  |  ands CARG2, CARG1, #FRAME_TYPE
+  |  bne <2			// Trace stitching continuation?
+  |  // Otherwise set KBASE for Lua function below fast function.
+  |  ldr CARG3w, [CARG1, #-4]
+  |  decode_RA CARG1, CARG3
+  |  sub CARG2, BASE, CARG1, lsl #3
+  |  ldr LFUNC:CARG3, [CARG2, #-32]
+  |  and LFUNC:CARG3, CARG3, #LJ_GCVMASK
+  |  ldr CARG3, LFUNC:CARG3->pc
+  |  ldr KBASE, [CARG3, #PC2PROTO(k)]
+  |  b <2
+  |
+  |9:  // Rethrow error from the right C frame.
+  |  neg CARG2w, CARG1w
+  |  mov CARG1, L
+  |  bl extern lj_err_trace		// (lua_State *L, int errcode)
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Math helper functions ----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |  // int lj_vm_modi(int dividend, int divisor);
+  |->vm_modi:
+  |    eor CARG4w, CARG1w, CARG2w
+  |    cmp CARG4w, #0
+  |  eor CARG3w, CARG1w, CARG1w, asr #31
+  |   eor CARG4w, CARG2w, CARG2w, asr #31
+  |  sub CARG3w, CARG3w, CARG1w, asr #31
+  |   sub CARG4w, CARG4w, CARG2w, asr #31
+  |  udiv CARG1w, CARG3w, CARG4w
+  |  msub CARG1w, CARG1w, CARG4w, CARG3w
+  |    ccmp CARG1w, #0, #4, mi
+  |    sub CARG3w, CARG1w, CARG4w
+  |    csel CARG1w, CARG1w, CARG3w, eq
+  |  eor CARG3w, CARG1w, CARG2w
+  |  cmp CARG3w, #0
+  |  cneg CARG1w, CARG1w, mi
+  |  ret
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Miscellaneous functions --------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.define NEXT_TAB,		TAB:CARG1
+  |.define NEXT_RES,		CARG1
+  |.define NEXT_IDX,		CARG2w
+  |.define NEXT_LIM,		CARG3w
+  |.define NEXT_TMP0,		TMP0
+  |.define NEXT_TMP0w,		TMP0w
+  |.define NEXT_TMP1,		TMP1
+  |.define NEXT_TMP1w,		TMP1w
+  |.define NEXT_RES_PTR,	sp
+  |.define NEXT_RES_VAL,	[sp]
+  |.define NEXT_RES_KEY,	[sp, #8]
+  |
+  |// TValue *lj_vm_next(GCtab *t, uint32_t idx)
+  |// Next idx returned in CRET2w.
+  |->vm_next:
+  |.if JIT
+  |  ldr NEXT_LIM, NEXT_TAB->asize
+  |   ldr NEXT_TMP1, NEXT_TAB->array
+  |1:  // Traverse array part.
+  |  subs NEXT_TMP0w, NEXT_IDX, NEXT_LIM
+  |  bhs >5				// Index points after array part?
+  |  ldr NEXT_TMP0, [NEXT_TMP1, NEXT_IDX, uxtw #3]
+  |  cmn NEXT_TMP0, #-LJ_TNIL
+  |   cinc NEXT_IDX, NEXT_IDX, eq
+  |  beq <1				// Skip holes in array part.
+  |  str NEXT_TMP0, NEXT_RES_VAL
+  |   movz NEXT_TMP0w, #(LJ_TISNUM>>1)&0xffff, lsl #16
+  |   stp NEXT_IDX, NEXT_TMP0w, NEXT_RES_KEY
+  |  add NEXT_IDX, NEXT_IDX, #1
+  |  mov NEXT_RES, NEXT_RES_PTR
+  |4:
+  |  ret
+  |
+  |5:  // Traverse hash part.
+  |  ldr NEXT_TMP1w, NEXT_TAB->hmask
+  |   ldr NODE:NEXT_RES, NEXT_TAB->node
+  |   add NEXT_TMP0w, NEXT_TMP0w, NEXT_TMP0w, lsl #1
+  |  add NEXT_LIM, NEXT_LIM, NEXT_TMP1w
+  |   add NODE:NEXT_RES, NODE:NEXT_RES, NEXT_TMP0w, uxtw #3
+  |6:
+  |  cmp NEXT_IDX, NEXT_LIM
+  |  bhi >9
+  |  ldr NEXT_TMP0, NODE:NEXT_RES->val
+  |  cmn NEXT_TMP0, #-LJ_TNIL
+  |   add NEXT_IDX, NEXT_IDX, #1
+  |  bne <4
+  |  // Skip holes in hash part.
+  |  add NODE:NEXT_RES, NODE:NEXT_RES, #sizeof(Node)
+  |  b <6
+  |
+  |9:  // End of iteration. Set the key to nil (not the value).
+  |  movn NEXT_TMP0, #0
+  |  str NEXT_TMP0, NEXT_RES_KEY
+  |  mov NEXT_RES, NEXT_RES_PTR
+  |  ret
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- FFI helper functions -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Handler for callback functions.
+  |// Saveregs already performed. Callback slot number in [sp], g in r12.
+  |->vm_ffi_callback:
+  |.if FFI
+  |.type CTSTATE, CTState, PC
+  |  saveregs
+  |  ldr CTSTATE, GL:x10->ctype_state
+  |  mov GL, x10
+  |    add x10, sp, # CFRAME_SPACE
+  |  str w9, CTSTATE->cb.slot
+  |  stp x0, x1, CTSTATE->cb.gpr[0]
+  |   stp d0, d1, CTSTATE->cb.fpr[0]
+  |  stp x2, x3, CTSTATE->cb.gpr[2]
+  |   stp d2, d3, CTSTATE->cb.fpr[2]
+  |  stp x4, x5, CTSTATE->cb.gpr[4]
+  |   stp d4, d5, CTSTATE->cb.fpr[4]
+  |  stp x6, x7, CTSTATE->cb.gpr[6]
+  |   stp d6, d7, CTSTATE->cb.fpr[6]
+  |    str x10, CTSTATE->cb.stack
+  |  mov CARG1, CTSTATE
+  |   str CTSTATE, SAVE_PC		// Any value outside of bytecode is ok.
+  |  mov CARG2, sp
+  |  bl extern lj_ccallback_enter	// (CTState *cts, void *cf)
+  |  // Returns lua_State *.
+  |  ldp BASE, RC, L:CRET1->base
+  |   movz TISNUM, #(LJ_TISNUM>>1)&0xffff, lsl #48
+  |   movz TISNUMhi, #(LJ_TISNUM>>1)&0xffff, lsl #16
+  |   movn TISNIL, #0
+  |   mov L, CRET1
+  |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]
+  |  sub RC, RC, BASE
+  |   st_vmstate ST_INTERP
+  |  and LFUNC:CARG3, CARG3, #LJ_GCVMASK
+  |  ins_callt
+  |.endif
+  |
+  |->cont_ffi_callback:			// Return from FFI callback.
+  |.if FFI
+  |  ldr CTSTATE, GL->ctype_state
+  |   stp BASE, CARG4, L->base
+  |  str L, CTSTATE->L
+  |  mov CARG1, CTSTATE
+  |  mov CARG2, RA
+  |  bl extern lj_ccallback_leave       // (CTState *cts, TValue *o)
+  |  ldp x0, x1, CTSTATE->cb.gpr[0]
+  |   ldp d0, d1, CTSTATE->cb.fpr[0]
+  |  b ->vm_leave_unw
+  |.endif
+  |
+  |->vm_ffi_call:			// Call C function via FFI.
+  |  // Caveat: needs special frame unwinding, see below.
+  |.if FFI
+  |  .type CCSTATE, CCallState, x19
+  |  stp x20, CCSTATE, [sp, #-32]!
+  |  stp fp, lr, [sp, #16]
+  |  add fp, sp, #16
+  |  mov CCSTATE, x0
+  |  ldr TMP0w, CCSTATE:x0->spadj
+  |   ldrb TMP1w, CCSTATE->nsp
+  |    add TMP2, CCSTATE, #offsetof(CCallState, stack)
+  |   subs TMP1, TMP1, #1
+  |    ldr TMP3, CCSTATE->func
+  |  sub sp, sp, TMP0
+  |   bmi >2
+  |1:  // Copy stack slots
+  |  ldr TMP0, [TMP2, TMP1, lsl #3]
+  |  str TMP0, [sp, TMP1, lsl #3]
+  |  subs TMP1, TMP1, #1
+  |  bpl <1
+  |2:
+  |  ldp x0, x1, CCSTATE->gpr[0]
+  |   ldp d0, d1, CCSTATE->fpr[0]
+  |  ldp x2, x3, CCSTATE->gpr[2]
+  |   ldp d2, d3, CCSTATE->fpr[2]
+  |  ldp x4, x5, CCSTATE->gpr[4]
+  |   ldp d4, d5, CCSTATE->fpr[4]
+  |  ldp x6, x7, CCSTATE->gpr[6]
+  |   ldp d6, d7, CCSTATE->fpr[6]
+  |  ldr x8, CCSTATE->retp
+  |  blr TMP3
+  |  sub sp, fp, #16
+  |  stp x0, x1, CCSTATE->gpr[0]
+  |   stp d0, d1, CCSTATE->fpr[0]
+  |   stp d2, d3, CCSTATE->fpr[2]
+  |  ldp fp, lr, [sp, #16]
+  |  ldp x20, CCSTATE, [sp], #32
+  |  ret
+  |.endif
+  |// Note: vm_ffi_call must be the last function in this object file!
+  |
+  |//-----------------------------------------------------------------------
+}
+
+/* Generate the code for a single instruction. */
+static void build_ins(BuildCtx *ctx, BCOp op, int defop)
+{
+  int vk = 0;
+  |=>defop:
+
+  switch (op) {
+
+  /* -- Comparison ops ---------------------------------------------------- */
+
+  /* Remember: all ops branch for a true comparison, fall through otherwise. */
+
+  case BC_ISLT: case BC_ISGE: case BC_ISLE: case BC_ISGT:
+    |  // RA = src1, RC = src2, JMP with RC = target
+    |  ldr CARG1, [BASE, RA, lsl #3]
+    |    ldrh RBw, [PC, # OFS_RD]
+    |   ldr CARG2, [BASE, RC, lsl #3]
+    |    add PC, PC, #4
+    |    add RB, PC, RB, lsl #2
+    |    sub RB, RB, #0x20000
+    |  checkint CARG1, >3
+    |   checkint CARG2, >4
+    |  cmp CARG1w, CARG2w
+    if (op == BC_ISLT) {
+      |  csel PC, RB, PC, lt
+    } else if (op == BC_ISGE) {
+      |  csel PC, RB, PC, ge
+    } else if (op == BC_ISLE) {
+      |  csel PC, RB, PC, le
+    } else {
+      |  csel PC, RB, PC, gt
+    }
+    |1:
+    |  ins_next
+    |
+    |3:  // RA not int.
+    |    ldr FARG1, [BASE, RA, lsl #3]
+    |  blo ->vmeta_comp
+    |    ldr FARG2, [BASE, RC, lsl #3]
+    |   cmp TISNUMhi, CARG2, lsr #32
+    |   bhi >5
+    |   bne ->vmeta_comp
+    |  // RA number, RC int.
+    |  scvtf FARG2, CARG2w
+    |  b >5
+    |
+    |4:  // RA int, RC not int
+    |    ldr FARG2, [BASE, RC, lsl #3]
+    |   blo ->vmeta_comp
+    |  // RA int, RC number.
+    |  scvtf FARG1, CARG1w
+    |
+    |5:  // RA number, RC number
+    |  fcmp FARG1, FARG2
+    |  // To preserve NaN semantics GE/GT branch on unordered, but LT/LE don't.
+    if (op == BC_ISLT) {
+      |  csel PC, RB, PC, lo
+    } else if (op == BC_ISGE) {
+      |  csel PC, RB, PC, hs
+    } else if (op == BC_ISLE) {
+      |  csel PC, RB, PC, ls
+    } else {
+      |  csel PC, RB, PC, hi
+    }
+    |  b <1
+    break;
+
+  case BC_ISEQV: case BC_ISNEV:
+    vk = op == BC_ISEQV;
+    |  // RA = src1, RC = src2, JMP with RC = target
+    |  ldr CARG1, [BASE, RA, lsl #3]
+    |   add RC, BASE, RC, lsl #3
+    |    ldrh RBw, [PC, # OFS_RD]
+    |   ldr CARG3, [RC]
+    |    add PC, PC, #4
+    |    add RB, PC, RB, lsl #2
+    |    sub RB, RB, #0x20000
+    |  asr ITYPE, CARG3, #47
+    |  cmn ITYPE, #-LJ_TISNUM
+    if (vk) {
+      |  bls ->BC_ISEQN_Z
+    } else {
+      |  bls ->BC_ISNEN_Z
+    }
+    |  // RC is not a number.
+    |   asr TMP0, CARG1, #47
+    |.if FFI
+    |  // Check if RC or RA is a cdata.
+    |  cmn ITYPE, #-LJ_TCDATA
+    |   ccmn TMP0, #-LJ_TCDATA, #4, ne
+    |  beq ->vmeta_equal_cd
+    |.endif
+    |  cmp CARG1, CARG3
+    |  bne >2
+    |  // Tag and value are equal.
+    if (vk) {
+      |->BC_ISEQV_Z:
+      |  mov PC, RB			// Perform branch.
+    }
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if the tags are the same and it's a table or userdata.
+    |  cmp ITYPE, TMP0
+    |  ccmn ITYPE, #-LJ_TISTABUD, #2, eq
+    if (vk) {
+      |  bhi <1
+    } else {
+      |  bhi ->BC_ISEQV_Z		// Reuse code from opposite instruction.
+    }
+    |  // Different tables or userdatas. Need to check __eq metamethod.
+    |  // Field metatable must be at same offset for GCtab and GCudata!
+    |  and TAB:CARG2, CARG1, #LJ_GCVMASK
+    |  ldr TAB:TMP2, TAB:CARG2->metatable
+    if (vk) {
+      |  cbz TAB:TMP2, <1		// No metatable?
+      |  ldrb TMP1w, TAB:TMP2->nomm
+      |   mov CARG4, #0			// ne = 0
+      |  tbnz TMP1w, #MM_eq, <1		// 'no __eq' flag set: done.
+    } else {
+      |  cbz TAB:TMP2, ->BC_ISEQV_Z	// No metatable?
+      |  ldrb TMP1w, TAB:TMP2->nomm
+      |   mov CARG4, #1			// ne = 1.
+      |  tbnz TMP1w, #MM_eq, ->BC_ISEQV_Z	// 'no __eq' flag set: done.
+    }
+    |  b ->vmeta_equal
+    break;
+
+  case BC_ISEQS: case BC_ISNES:
+    vk = op == BC_ISEQS;
+    |  // RA = src, RC = str_const (~), JMP with RC = target
+    |  ldr CARG1, [BASE, RA, lsl #3]
+    |   mvn RC, RC
+    |    ldrh RBw, [PC, # OFS_RD]
+    |   ldr CARG2, [KBASE, RC, lsl #3]
+    |    add PC, PC, #4
+    |   movn TMP0, #~LJ_TSTR
+    |.if FFI
+    |  asr ITYPE, CARG1, #47
+    |.endif
+    |    add RB, PC, RB, lsl #2
+    |   add CARG2, CARG2, TMP0, lsl #47
+    |    sub RB, RB, #0x20000
+    |.if FFI
+    |  cmn ITYPE, #-LJ_TCDATA
+    |  beq ->vmeta_equal_cd
+    |.endif
+    |  cmp CARG1, CARG2
+    if (vk) {
+      |  csel PC, RB, PC, eq
+    } else {
+      |  csel PC, RB, PC, ne
+    }
+    |  ins_next
+    break;
+
+  case BC_ISEQN: case BC_ISNEN:
+    vk = op == BC_ISEQN;
+    |  // RA = src, RC = num_const (~), JMP with RC = target
+    |  ldr CARG1, [BASE, RA, lsl #3]
+    |   add RC, KBASE, RC, lsl #3
+    |    ldrh RBw, [PC, # OFS_RD]
+    |   ldr CARG3, [RC]
+    |    add PC, PC, #4
+    |    add RB, PC, RB, lsl #2
+    |    sub RB, RB, #0x20000
+    if (vk) {
+      |->BC_ISEQN_Z:
+    } else {
+      |->BC_ISNEN_Z:
+    }
+    |  checkint CARG1, >4
+    |   checkint CARG3, >6
+    |  cmp CARG1w, CARG3w
+    |1:
+    if (vk) {
+      |  csel PC, RB, PC, eq
+      |2:
+    } else {
+      |2:
+      |  csel PC, RB, PC, ne
+    }
+    |3:
+    |  ins_next
+    |
+    |4:  // RA not int.
+    |.if FFI
+    |  blo >7
+    |.else
+    |  blo <2
+    |.endif
+    |    ldr FARG1, [BASE, RA, lsl #3]
+    |    ldr FARG2, [RC]
+    |   cmp TISNUMhi, CARG3, lsr #32
+    |   bne >5
+    |  // RA number, RC int.
+    |  scvtf FARG2, CARG3w
+    |5:
+    |  // RA number, RC number.
+    |  fcmp FARG1, FARG2
+    |  b <1
+    |
+    |6:  // RA int, RC number
+    |  ldr FARG2, [RC]
+    |  scvtf FARG1, CARG1w
+    |  fcmp FARG1, FARG2
+    |  b <1
+    |
+    |.if FFI
+    |7:
+    |  asr ITYPE, CARG1, #47
+    |  cmn ITYPE, #-LJ_TCDATA
+    |  bne <2
+    |  b ->vmeta_equal_cd
+    |.endif
+    break;
+
+  case BC_ISEQP: case BC_ISNEP:
+    vk = op == BC_ISEQP;
+    |  // RA = src, RC = primitive_type (~), JMP with RC = target
+    |  ldr TMP0, [BASE, RA, lsl #3]
+    |   ldrh RBw, [PC, # OFS_RD]
+    |   add PC, PC, #4
+    |  add RC, RC, #1
+    |   add RB, PC, RB, lsl #2
+    |.if FFI
+    |  asr ITYPE, TMP0, #47
+    |  cmn ITYPE, #-LJ_TCDATA
+    |  beq ->vmeta_equal_cd
+    |  cmn RC, ITYPE
+    |.else
+    |  cmn RC, TMP0, asr #47
+    |.endif
+    |   sub RB, RB, #0x20000
+    if (vk) {
+      |  csel PC, RB, PC, eq
+    } else {
+      |  csel PC, RB, PC, ne
+    }
+    |  ins_next
+    break;
+
+  /* -- Unary test and copy ops ------------------------------------------- */
+
+  case BC_ISTC: case BC_ISFC: case BC_IST: case BC_ISF:
+    |  // RA = dst or unused, RC = src, JMP with RC = target
+    |   ldrh RBw, [PC, # OFS_RD]
+    |  ldr TMP0, [BASE, RC, lsl #3]
+    |   add PC, PC, #4
+    |  mov_false TMP1
+    |   add RB, PC, RB, lsl #2
+    |  cmp TMP0, TMP1
+    |   sub RB, RB, #0x20000
+    if (op == BC_ISTC || op == BC_IST) {
+      if (op == BC_ISTC) {
+	|  csel RA, RA, RC, lo
+      }
+      |  csel PC, RB, PC, lo
+    } else {
+      if (op == BC_ISFC) {
+	|  csel RA, RA, RC, hs
+      }
+      |  csel PC, RB, PC, hs
+    }
+    if (op == BC_ISTC || op == BC_ISFC) {
+      |  str TMP0, [BASE, RA, lsl #3]
+    }
+    |  ins_next
+    break;
+
+  case BC_ISTYPE:
+    |  // RA = src, RC = -type
+    |  ldr TMP0, [BASE, RA, lsl #3]
+    |  cmn RC, TMP0, asr #47
+    |  bne ->vmeta_istype
+    |  ins_next
+    break;
+  case BC_ISNUM:
+    |  // RA = src, RC = -(TISNUM-1)
+    |  ldr TMP0, [BASE, RA]
+    |  checknum TMP0, ->vmeta_istype
+    |  ins_next
+    break;
+
+  /* -- Unary ops --------------------------------------------------------- */
+
+  case BC_MOV:
+    |  // RA = dst, RC = src
+    |  ldr TMP0, [BASE, RC, lsl #3]
+    |  str TMP0, [BASE, RA, lsl #3]
+    |  ins_next
+    break;
+  case BC_NOT:
+    |  // RA = dst, RC = src
+    |  ldr TMP0, [BASE, RC, lsl #3]
+    |   mov_false TMP1
+    |   mov_true TMP2
+    |  cmp TMP0, TMP1
+    |  csel TMP0, TMP1, TMP2, lo
+    |  str TMP0, [BASE, RA, lsl #3]
+    |  ins_next
+    break;
+  case BC_UNM:
+    |  // RA = dst, RC = src
+    |  ldr TMP0, [BASE, RC, lsl #3]
+    |  asr ITYPE, TMP0, #47
+    |  cmn ITYPE, #-LJ_TISNUM
+    |  bhi ->vmeta_unm
+    |  eor TMP0, TMP0, #U64x(80000000,00000000)
+    |  bne >5
+    |  negs TMP0w, TMP0w
+    |   movz CARG3, #0x41e0, lsl #48	// 2^31.
+    |   add TMP0, TMP0, TISNUM
+    |  csel TMP0, TMP0, CARG3, vc
+    |5:
+    |  str TMP0, [BASE, RA, lsl #3]
+    |  ins_next
+    break;
+  case BC_LEN:
+    |  // RA = dst, RC = src
+    |  ldr CARG1, [BASE, RC, lsl #3]
+    |  asr ITYPE, CARG1, #47
+    |  cmn ITYPE, #-LJ_TSTR
+    |   and CARG1, CARG1, #LJ_GCVMASK
+    |  bne >2
+    |  ldr CARG1w, STR:CARG1->len
+    |1:
+    |  add CARG1, CARG1, TISNUM
+    |  str CARG1, [BASE, RA, lsl #3]
+    |  ins_next
+    |
+    |2:
+    |  cmn ITYPE, #-LJ_TTAB
+    |  bne ->vmeta_len
+#if LJ_52
+    |  ldr TAB:CARG2, TAB:CARG1->metatable
+    |  cbnz TAB:CARG2, >9
+    |3:
+#endif
+    |->BC_LEN_Z:
+    |  bl extern lj_tab_len		// (GCtab *t)
+    |  // Returns uint32_t (but less than 2^31).
+    |  b <1
+    |
+#if LJ_52
+    |9:
+    |  ldrb TMP1w, TAB:CARG2->nomm
+    |  tbnz TMP1w, #MM_len, <3		// 'no __len' flag set: done.
+    |  b ->vmeta_len
+#endif
+    break;
+
+  /* -- Binary ops -------------------------------------------------------- */
+
+    |.macro ins_arithcheck_int, target
+    |  checkint CARG1, target
+    |  checkint CARG2, target
+    |.endmacro
+    |
+    |.macro ins_arithcheck_num, target
+    |  checknum CARG1, target
+    |  checknum CARG2, target
+    |.endmacro
+    |
+    |.macro ins_arithcheck_nzdiv, target
+    |  cbz CARG2w, target
+    |.endmacro
+    |
+    |.macro ins_arithhead
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    ||if (vk == 1) {
+    |   and RC, RC, #255
+    |    decode_RB RB, INS
+    ||} else {
+    |   decode_RB RB, INS
+    |    and RC, RC, #255
+    ||}
+    |.endmacro
+    |
+    |.macro ins_arithload, reg1, reg2
+    |  // RA = dst, RB = src1, RC = src2 | num_const
+    ||switch (vk) {
+    ||case 0:
+    |   ldr reg1, [BASE, RB, lsl #3]
+    |    ldr reg2, [KBASE, RC, lsl #3]
+    ||  break;
+    ||case 1:
+    |   ldr reg1, [KBASE, RC, lsl #3]
+    |    ldr reg2, [BASE, RB, lsl #3]
+    ||  break;
+    ||default:
+    |   ldr reg1, [BASE, RB, lsl #3]
+    |    ldr reg2, [BASE, RC, lsl #3]
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro ins_arithfallback, ins
+    ||switch (vk) {
+    ||case 0:
+    |   ins ->vmeta_arith_vn
+    ||  break;
+    ||case 1:
+    |   ins ->vmeta_arith_nv
+    ||  break;
+    ||default:
+    |   ins ->vmeta_arith_vv
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro ins_arithmod, res, reg1, reg2
+    |  fdiv d2, reg1, reg2
+    |  frintm d2, d2
+    |  fmsub res, d2, reg2, reg1
+    |.endmacro
+    |
+    |.macro ins_arithdn, intins, fpins
+    |  ins_arithhead
+    |  ins_arithload CARG1, CARG2
+    |  ins_arithcheck_int >5
+    |.if "intins" == "smull"
+    |  smull CARG1, CARG1w, CARG2w
+    |  cmp CARG1, CARG1, sxtw
+    |   mov CARG1w, CARG1w
+    |  ins_arithfallback bne
+    |.elif "intins" == "ins_arithmodi"
+    |  ins_arithfallback ins_arithcheck_nzdiv
+    |  bl ->vm_modi
+    |.else
+    |  intins CARG1w, CARG1w, CARG2w
+    |  ins_arithfallback bvs
+    |.endif
+    |  add CARG1, CARG1, TISNUM
+    |  str CARG1, [BASE, RA, lsl #3]
+    |4:
+    |  ins_next
+    |
+    |5:  // FP variant.
+    |  ins_arithload FARG1, FARG2
+    |  ins_arithfallback ins_arithcheck_num
+    |  fpins FARG1, FARG1, FARG2
+    |  str FARG1, [BASE, RA, lsl #3]
+    |  b <4
+    |.endmacro
+    |
+    |.macro ins_arithfp, fpins
+    |  ins_arithhead
+    |  ins_arithload CARG1, CARG2
+    |  ins_arithload FARG1, FARG2
+    |  ins_arithfallback ins_arithcheck_num
+    |.if "fpins" == "fpow"
+    |  bl extern pow
+    |.else
+    |  fpins FARG1, FARG1, FARG2
+    |.endif
+    |  str FARG1, [BASE, RA, lsl #3]
+    |  ins_next
+    |.endmacro
+
+  case BC_ADDVN: case BC_ADDNV: case BC_ADDVV:
+    |  ins_arithdn adds, fadd
+    break;
+  case BC_SUBVN: case BC_SUBNV: case BC_SUBVV:
+    |  ins_arithdn subs, fsub
+    break;
+  case BC_MULVN: case BC_MULNV: case BC_MULVV:
+    |  ins_arithdn smull, fmul
+    break;
+  case BC_DIVVN: case BC_DIVNV: case BC_DIVVV:
+    |  ins_arithfp fdiv
+    break;
+  case BC_MODVN: case BC_MODNV: case BC_MODVV:
+    |  ins_arithdn ins_arithmodi, ins_arithmod
+    break;
+  case BC_POW:
+    |  // NYI: (partial) integer arithmetic.
+    |  ins_arithfp fpow
+    break;
+
+  case BC_CAT:
+    |  decode_RB RB, INS
+    |   and RC, RC, #255
+    |  // RA = dst, RB = src_start, RC = src_end
+    |   str BASE, L->base
+    |  sub CARG3, RC, RB
+    |  add CARG2, BASE, RC, lsl #3
+    |->BC_CAT_Z:
+    |  // RA = dst, CARG2 = top-1, CARG3 = left
+    |  mov CARG1, L
+    |   str PC, SAVE_PC
+    |  bl extern lj_meta_cat		// (lua_State *L, TValue *top, int left)
+    |  // Returns NULL (finished) or TValue * (metamethod).
+    |  ldrb RBw, [PC, #-4+OFS_RB]
+    |   ldr BASE, L->base
+    |   cbnz CRET1, ->vmeta_binop
+    |  ldr TMP0, [BASE, RB, lsl #3]
+    |  str TMP0, [BASE, RA, lsl #3]	// Copy result to RA.
+    |  ins_next
+    break;
+
+  /* -- Constant ops ------------------------------------------------------ */
+
+  case BC_KSTR:
+    |  // RA = dst, RC = str_const (~)
+    |  mvn RC, RC
+    |  ldr TMP0, [KBASE, RC, lsl #3]
+    |   movn TMP1, #~LJ_TSTR
+    |  add TMP0, TMP0, TMP1, lsl #47
+    |  str TMP0, [BASE, RA, lsl #3]
+    |  ins_next
+    break;
+  case BC_KCDATA:
+    |.if FFI
+    |  // RA = dst, RC = cdata_const (~)
+    |  mvn RC, RC
+    |  ldr TMP0, [KBASE, RC, lsl #3]
+    |   movn TMP1, #~LJ_TCDATA
+    |  add TMP0, TMP0, TMP1, lsl #47
+    |  str TMP0, [BASE, RA, lsl #3]
+    |  ins_next
+    |.endif
+    break;
+  case BC_KSHORT:
+    |  // RA = dst, RC = int16_literal
+    |  sxth RCw, RCw
+    |  add TMP0, RC, TISNUM
+    |  str TMP0, [BASE, RA, lsl #3]
+    |  ins_next
+    break;
+  case BC_KNUM:
+    |  // RA = dst, RC = num_const
+    |  ldr TMP0, [KBASE, RC, lsl #3]
+    |  str TMP0, [BASE, RA, lsl #3]
+    |  ins_next
+    break;
+  case BC_KPRI:
+    |  // RA = dst, RC = primitive_type (~)
+    |  mvn TMP0, RC, lsl #47
+    |  str TMP0, [BASE, RA, lsl #3]
+    |  ins_next
+    break;
+  case BC_KNIL:
+    |  // RA = base, RC = end
+    |  add RA, BASE, RA, lsl #3
+    |   add RC, BASE, RC, lsl #3
+    |  str TISNIL, [RA], #8
+    |1:
+    |   cmp RA, RC
+    |  str TISNIL, [RA], #8
+    |   blt <1
+    |  ins_next_
+    break;
+
+  /* -- Upvalue and function ops ------------------------------------------ */
+
+  case BC_UGET:
+    |  // RA = dst, RC = uvnum
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   add RC, RC, #offsetof(GCfuncL, uvptr)/8
+    |  and LFUNC:CARG2, CARG2, #LJ_GCVMASK
+    |  ldr UPVAL:CARG2, [LFUNC:CARG2, RC, lsl #3]
+    |  ldr CARG2, UPVAL:CARG2->v
+    |  ldr TMP0, [CARG2]
+    |  str TMP0, [BASE, RA, lsl #3]
+    |  ins_next
+    break;
+  case BC_USETV:
+    |  // RA = uvnum, RC = src
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   add RA, RA, #offsetof(GCfuncL, uvptr)/8
+    |  and LFUNC:CARG2, CARG2, #LJ_GCVMASK
+    |  ldr UPVAL:CARG1, [LFUNC:CARG2, RA, lsl #3]
+    |   ldr CARG3, [BASE, RC, lsl #3]
+    |    ldr CARG2, UPVAL:CARG1->v
+    |  ldrb TMP2w, UPVAL:CARG1->marked
+    |  ldrb TMP0w, UPVAL:CARG1->closed
+    |    asr ITYPE, CARG3, #47
+    |   str CARG3, [CARG2]
+    |    add ITYPE, ITYPE, #-LJ_TISGCV
+    |  tst TMP2w, #LJ_GC_BLACK		// isblack(uv)
+    |  ccmp TMP0w, #0, #4, ne		// && uv->closed
+    |    ccmn ITYPE, #-(LJ_TNUMX - LJ_TISGCV), #0, ne	// && tvisgcv(v)
+    |  bhi >2
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if new value is white.
+    |  and GCOBJ:CARG3, CARG3, #LJ_GCVMASK
+    |  ldrb TMP1w, GCOBJ:CARG3->gch.marked
+    |  tst TMP1w, #LJ_GC_WHITES		// iswhite(str)
+    |  beq <1
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  mov CARG1, GL
+    |  bl extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |  b <1
+    break;
+  case BC_USETS:
+    |  // RA = uvnum, RC = str_const (~)
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   add RA, RA, #offsetof(GCfuncL, uvptr)/8
+    |    mvn RC, RC
+    |  and LFUNC:CARG2, CARG2, #LJ_GCVMASK
+    |  ldr UPVAL:CARG1, [LFUNC:CARG2, RA, lsl #3]
+    |   ldr STR:CARG3, [KBASE, RC, lsl #3]
+    |   movn TMP0, #~LJ_TSTR
+    |    ldr CARG2, UPVAL:CARG1->v
+    |  ldrb TMP2w, UPVAL:CARG1->marked
+    |   add TMP0, STR:CARG3, TMP0, lsl #47
+    |    ldrb TMP1w, STR:CARG3->marked
+    |   str TMP0, [CARG2]
+    |  tbnz TMP2w, #2, >2		// isblack(uv)
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if string is white and ensure upvalue is closed.
+    |  ldrb TMP0w, UPVAL:CARG1->closed
+    |    tst TMP1w, #LJ_GC_WHITES	// iswhite(str)
+    |  ccmp TMP0w, #0, #4, ne
+    |  beq <1
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  mov CARG1, GL
+    |  bl extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |  b <1
+    break;
+  case BC_USETN:
+    |  // RA = uvnum, RC = num_const
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   add RA, RA, #offsetof(GCfuncL, uvptr)/8
+    |  and LFUNC:CARG2, CARG2, #LJ_GCVMASK
+    |  ldr UPVAL:CARG2, [LFUNC:CARG2, RA, lsl #3]
+    |   ldr TMP0, [KBASE, RC, lsl #3]
+    |  ldr CARG2, UPVAL:CARG2->v
+    |   str TMP0, [CARG2]
+    |  ins_next
+    break;
+  case BC_USETP:
+    |  // RA = uvnum, RC = primitive_type (~)
+    |  ldr LFUNC:CARG2, [BASE, FRAME_FUNC]
+    |   add RA, RA, #offsetof(GCfuncL, uvptr)/8
+    |  and LFUNC:CARG2, CARG2, #LJ_GCVMASK
+    |  ldr UPVAL:CARG2, [LFUNC:CARG2, RA, lsl #3]
+    |   mvn TMP0, RC, lsl #47
+    |  ldr CARG2, UPVAL:CARG2->v
+    |   str TMP0, [CARG2]
+    |  ins_next
+    break;
+
+  case BC_UCLO:
+    |  // RA = level, RC = target
+    |  ldr CARG3, L->openupval
+    |   add RC, PC, RC, lsl #2
+    |    str BASE, L->base
+    |   sub PC, RC, #0x20000
+    |  cbz CARG3, >1
+    |  mov CARG1, L
+    |  add CARG2, BASE, RA, lsl #3
+    |  bl extern lj_func_closeuv	// (lua_State *L, TValue *level)
+    |  ldr BASE, L->base
+    |1:
+    |  ins_next
+    break;
+
+  case BC_FNEW:
+    |  // RA = dst, RC = proto_const (~) (holding function prototype)
+    |  mvn RC, RC
+    |   str BASE, L->base
+    |  ldr LFUNC:CARG3, [BASE, FRAME_FUNC]
+    |    str PC, SAVE_PC
+    |   ldr CARG2, [KBASE, RC, lsl #3]
+    |    mov CARG1, L
+    |  and LFUNC:CARG3, CARG3, #LJ_GCVMASK
+    |  // (lua_State *L, GCproto *pt, GCfuncL *parent)
+    |  bl extern lj_func_newL_gc
+    |  // Returns GCfuncL *.
+    |  ldr BASE, L->base
+    |   movn TMP0, #~LJ_TFUNC
+    |   add CRET1, CRET1, TMP0, lsl #47
+    |  str CRET1, [BASE, RA, lsl #3]
+    |  ins_next
+    break;
+
+  /* -- Table ops --------------------------------------------------------- */
+
+  case BC_TNEW:
+  case BC_TDUP:
+    |  // RA = dst, RC = (hbits|asize) | tab_const (~)
+    |  ldp CARG3, CARG4, GL->gc.total	// Assumes threshold follows total.
+    |   str BASE, L->base
+    |   str PC, SAVE_PC
+    |   mov CARG1, L
+    |  cmp CARG3, CARG4
+    |  bhs >5
+    |1:
+    if (op == BC_TNEW) {
+      |  and CARG2, RC, #0x7ff
+      |   lsr CARG3, RC, #11
+      |  cmp CARG2, #0x7ff
+      |  mov TMP0, #0x801
+      |  csel CARG2, CARG2, TMP0, ne
+      |  bl extern lj_tab_new  // (lua_State *L, int32_t asize, uint32_t hbits)
+      |  // Returns GCtab *.
+    } else {
+      |  mvn RC, RC
+      |  ldr CARG2, [KBASE, RC, lsl #3]
+      |  bl extern lj_tab_dup  // (lua_State *L, Table *kt)
+      |  // Returns GCtab *.
+    }
+    |  ldr BASE, L->base
+    |   movk CRET1, #(LJ_TTAB>>1)&0xffff, lsl #48
+    |  str CRET1, [BASE, RA, lsl #3]
+    |  ins_next
+    |
+    |5:
+    |  bl extern lj_gc_step_fixtop  // (lua_State *L)
+    |  mov CARG1, L
+    |  b <1
+    break;
+
+  case BC_GGET:
+    |  // RA = dst, RC = str_const (~)
+  case BC_GSET:
+    |  // RA = src, RC = str_const (~)
+    |  ldr LFUNC:CARG1, [BASE, FRAME_FUNC]
+    |   mvn RC, RC
+    |  and LFUNC:CARG1, CARG1, #LJ_GCVMASK
+    |  ldr TAB:CARG2, LFUNC:CARG1->env
+    |   ldr STR:RC, [KBASE, RC, lsl #3]
+    if (op == BC_GGET) {
+      |  b ->BC_TGETS_Z
+    } else {
+      |  b ->BC_TSETS_Z
+    }
+    break;
+
+  case BC_TGETV:
+    |  decode_RB RB, INS
+    |   and RC, RC, #255
+    |  // RA = dst, RB = table, RC = key
+    |  ldr CARG2, [BASE, RB, lsl #3]
+    |   ldr TMP1, [BASE, RC, lsl #3]
+    |  checktab CARG2, ->vmeta_tgetv
+    |  checkint TMP1, >9		// Integer key?
+    |  ldr CARG3, TAB:CARG2->array
+    |   ldr CARG1w, TAB:CARG2->asize
+    |  add CARG3, CARG3, TMP1, uxtw #3
+    |   cmp TMP1w, CARG1w		// In array part?
+    |   bhs ->vmeta_tgetv
+    |  ldr TMP0, [CARG3]
+    |  cmp TMP0, TISNIL
+    |  beq >5
+    |1:
+    |  str TMP0, [BASE, RA, lsl #3]
+    |  ins_next
+    |
+    |5:  // Check for __index if table value is nil.
+    |  ldr TAB:CARG1, TAB:CARG2->metatable
+    |  cbz TAB:CARG1, <1		// No metatable: done.
+    |  ldrb TMP1w, TAB:CARG1->nomm
+    |  tbnz TMP1w, #MM_index, <1	// 'no __index' flag set: done.
+    |  b ->vmeta_tgetv
+    |
+    |9:
+    |  asr ITYPE, TMP1, #47
+    |  cmn ITYPE, #-LJ_TSTR		// String key?
+    |  bne ->vmeta_tgetv
+    |   and STR:RC, TMP1, #LJ_GCVMASK
+    |  b ->BC_TGETS_Z
+    break;
+  case BC_TGETS:
+    |  decode_RB RB, INS
+    |   and RC, RC, #255
+    |  // RA = dst, RB = table, RC = str_const (~)
+    |  ldr CARG2, [BASE, RB, lsl #3]
+    |   mvn RC, RC
+    |   ldr STR:RC, [KBASE, RC, lsl #3]
+    |  checktab CARG2, ->vmeta_tgets1
+    |->BC_TGETS_Z:
+    |  // TAB:CARG2 = GCtab *, STR:RC = GCstr *, RA = dst
+    |  ldr TMP1w, TAB:CARG2->hmask
+    |   ldr TMP2w, STR:RC->sid
+    |    ldr NODE:CARG3, TAB:CARG2->node
+    |  and TMP1w, TMP1w, TMP2w		// idx = str->sid & tab->hmask
+    |  add TMP1, TMP1, TMP1, lsl #1
+    |  movn CARG4, #~LJ_TSTR
+    |    add NODE:CARG3, NODE:CARG3, TMP1, lsl #3  // node = tab->node + idx*3*8
+    |  add CARG4, STR:RC, CARG4, lsl #47	// Tagged key to look for.
+    |1:
+    |  ldp TMP0, CARG1, NODE:CARG3->val
+    |   ldr NODE:CARG3, NODE:CARG3->next
+    |  cmp CARG1, CARG4
+    |  bne >4
+    |  cmp TMP0, TISNIL
+    |  beq >5
+    |3:
+    |  str TMP0, [BASE, RA, lsl #3]
+    |  ins_next
+    |
+    |4:  // Follow hash chain.
+    |  cbnz NODE:CARG3, <1
+    |  // End of hash chain: key not found, nil result.
+    |   mov TMP0, TISNIL
+    |
+    |5:  // Check for __index if table value is nil.
+    |  ldr TAB:CARG1, TAB:CARG2->metatable
+    |  cbz TAB:CARG1, <3		// No metatable: done.
+    |  ldrb TMP1w, TAB:CARG1->nomm
+    |  tbnz TMP1w, #MM_index, <3	// 'no __index' flag set: done.
+    |  b ->vmeta_tgets
+    break;
+  case BC_TGETB:
+    |  decode_RB RB, INS
+    |   and RC, RC, #255
+    |  // RA = dst, RB = table, RC = index
+    |  ldr CARG2, [BASE, RB, lsl #3]
+    |  checktab CARG2, ->vmeta_tgetb
+    |  ldr CARG3, TAB:CARG2->array
+    |   ldr CARG1w, TAB:CARG2->asize
+    |  add CARG3, CARG3, RC, lsl #3
+    |   cmp RCw, CARG1w			// In array part?
+    |   bhs ->vmeta_tgetb
+    |  ldr TMP0, [CARG3]
+    |  cmp TMP0, TISNIL
+    |  beq >5
+    |1:
+    |  str TMP0, [BASE, RA, lsl #3]
+    |  ins_next
+    |
+    |5:  // Check for __index if table value is nil.
+    |  ldr TAB:CARG1, TAB:CARG2->metatable
+    |  cbz TAB:CARG1, <1		// No metatable: done.
+    |  ldrb TMP1w, TAB:CARG1->nomm
+    |  tbnz TMP1w, #MM_index, <1	// 'no __index' flag set: done.
+    |  b ->vmeta_tgetb
+    break;
+  case BC_TGETR:
+    |  decode_RB RB, INS
+    |   and RC, RC, #255
+    |  // RA = dst, RB = table, RC = key
+    |  ldr CARG1, [BASE, RB, lsl #3]
+    |   ldr TMP1, [BASE, RC, lsl #3]
+    |  and TAB:CARG1, CARG1, #LJ_GCVMASK
+    |  ldr CARG3, TAB:CARG1->array
+    |   ldr TMP2w, TAB:CARG1->asize
+    |  add CARG3, CARG3, TMP1w, uxtw #3
+    |   cmp TMP1w, TMP2w		// In array part?
+    |   bhs ->vmeta_tgetr
+    |  ldr TMP0, [CARG3]
+    |->BC_TGETR_Z:
+    |  str TMP0, [BASE, RA, lsl #3]
+    |  ins_next
+    break;
+
+  case BC_TSETV:
+    |  decode_RB RB, INS
+    |   and RC, RC, #255
+    |  // RA = src, RB = table, RC = key
+    |  ldr CARG2, [BASE, RB, lsl #3]
+    |   ldr TMP1, [BASE, RC, lsl #3]
+    |  checktab CARG2, ->vmeta_tsetv
+    |  checkint TMP1, >9		// Integer key?
+    |  ldr CARG3, TAB:CARG2->array
+    |   ldr CARG1w, TAB:CARG2->asize
+    |  add CARG3, CARG3, TMP1, uxtw #3
+    |   cmp TMP1w, CARG1w		// In array part?
+    |   bhs ->vmeta_tsetv
+    |  ldr TMP1, [CARG3]
+    |   ldr TMP0, [BASE, RA, lsl #3]
+    |    ldrb TMP2w, TAB:CARG2->marked
+    |  cmp TMP1, TISNIL			// Previous value is nil?
+    |  beq >5
+    |1:
+    |   str TMP0, [CARG3]
+    |    tbnz TMP2w, #2, >7		// isblack(table)
+    |2:
+    |   ins_next
+    |
+    |5:  // Check for __newindex if previous value is nil.
+    |  ldr TAB:CARG1, TAB:CARG2->metatable
+    |  cbz TAB:CARG1, <1		// No metatable: done.
+    |  ldrb TMP1w, TAB:CARG1->nomm
+    |  tbnz TMP1w, #MM_newindex, <1	// 'no __newindex' flag set: done.
+    |  b ->vmeta_tsetv
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, TMP2w, TMP1
+    |  b <2
+    |
+    |9:
+    |  asr ITYPE, TMP1, #47
+    |  cmn ITYPE, #-LJ_TSTR		// String key?
+    |  bne ->vmeta_tsetv
+    |   and STR:RC, TMP1, #LJ_GCVMASK
+    |  b ->BC_TSETS_Z
+    break;
+  case BC_TSETS:
+    |  decode_RB RB, INS
+    |   and RC, RC, #255
+    |  // RA = dst, RB = table, RC = str_const (~)
+    |  ldr CARG2, [BASE, RB, lsl #3]
+    |   mvn RC, RC
+    |   ldr STR:RC, [KBASE, RC, lsl #3]
+    |  checktab CARG2, ->vmeta_tsets1
+    |->BC_TSETS_Z:
+    |  // TAB:CARG2 = GCtab *, STR:RC = GCstr *, RA = src
+    |  ldr TMP1w, TAB:CARG2->hmask
+    |   ldr TMP2w, STR:RC->sid
+    |    ldr NODE:CARG3, TAB:CARG2->node
+    |  and TMP1w, TMP1w, TMP2w		// idx = str->sid & tab->hmask
+    |  add TMP1, TMP1, TMP1, lsl #1
+    |  movn CARG4, #~LJ_TSTR
+    |    add NODE:CARG3, NODE:CARG3, TMP1, lsl #3  // node = tab->node + idx*3*8
+    |  add CARG4, STR:RC, CARG4, lsl #47	// Tagged key to look for.
+    |   strb wzr, TAB:CARG2->nomm	// Clear metamethod cache.
+    |1:
+    |  ldp TMP1, CARG1, NODE:CARG3->val
+    |   ldr NODE:TMP3, NODE:CARG3->next
+    |    ldrb TMP2w, TAB:CARG2->marked
+    |  cmp CARG1, CARG4
+    |  bne >5
+    |   ldr TMP0, [BASE, RA, lsl #3]
+    |  cmp TMP1, TISNIL			// Previous value is nil?
+    |  beq >4
+    |2:
+    |   str TMP0, NODE:CARG3->val
+    |    tbnz TMP2w, #2, >7		// isblack(table)
+    |3:
+    |  ins_next
+    |
+    |4:  // Check for __newindex if previous value is nil.
+    |  ldr TAB:CARG1, TAB:CARG2->metatable
+    |  cbz TAB:CARG1, <2		// No metatable: done.
+    |  ldrb TMP1w, TAB:CARG1->nomm
+    |  tbnz TMP1w, #MM_newindex, <2	// 'no __newindex' flag set: done.
+    |  b ->vmeta_tsets
+    |
+    |5:  // Follow hash chain.
+    |  mov NODE:CARG3, NODE:TMP3
+    |  cbnz NODE:TMP3, <1
+    |  // End of hash chain: key not found, add a new one.
+    |
+    |  // But check for __newindex first.
+    |  ldr TAB:CARG1, TAB:CARG2->metatable
+    |  cbz TAB:CARG1, >6		// No metatable: continue.
+    |  ldrb TMP1w, TAB:CARG1->nomm
+    |  // 'no __newindex' flag NOT set: check.
+    |  tbz TMP1w, #MM_newindex, ->vmeta_tsets
+    |6:
+    |  movn TMP1, #~LJ_TSTR
+    |   str PC, SAVE_PC
+    |  add TMP0, STR:RC, TMP1, lsl #47
+    |   str BASE, L->base
+    |   mov CARG1, L
+    |  str TMP0, TMPD
+    |   add CARG3, sp, TMPDofs
+    |  bl extern lj_tab_newkey		// (lua_State *L, GCtab *t, TValue *k)
+    |  // Returns TValue *.
+    |  ldr BASE, L->base
+    |  ldr TMP0, [BASE, RA, lsl #3]
+    |  str TMP0, [CRET1]
+    |  b <3				// No 2nd write barrier needed.
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, TMP2w, TMP1
+    |  b <3
+    break;
+  case BC_TSETB:
+    |  decode_RB RB, INS
+    |   and RC, RC, #255
+    |  // RA = src, RB = table, RC = index
+    |  ldr CARG2, [BASE, RB, lsl #3]
+    |  checktab CARG2, ->vmeta_tsetb
+    |  ldr CARG3, TAB:CARG2->array
+    |   ldr CARG1w, TAB:CARG2->asize
+    |  add CARG3, CARG3, RC, lsl #3
+    |   cmp RCw, CARG1w			// In array part?
+    |   bhs ->vmeta_tsetb
+    |  ldr TMP1, [CARG3]
+    |   ldr TMP0, [BASE, RA, lsl #3]
+    |    ldrb TMP2w, TAB:CARG2->marked
+    |  cmp TMP1, TISNIL			// Previous value is nil?
+    |  beq >5
+    |1:
+    |   str TMP0, [CARG3]
+    |    tbnz TMP2w, #2, >7		// isblack(table)
+    |2:
+    |   ins_next
+    |
+    |5:  // Check for __newindex if previous value is nil.
+    |  ldr TAB:CARG1, TAB:CARG2->metatable
+    |  cbz TAB:CARG1, <1		// No metatable: done.
+    |  ldrb TMP1w, TAB:CARG1->nomm
+    |  tbnz TMP1w, #MM_newindex, <1	// 'no __newindex' flag set: done.
+    |  b ->vmeta_tsetb
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, TMP2w, TMP1
+    |  b <2
+    break;
+  case BC_TSETR:
+    |  decode_RB RB, INS
+    |   and RC, RC, #255
+    |  // RA = src, RB = table, RC = key
+    |  ldr CARG2, [BASE, RB, lsl #3]
+    |   ldr TMP1, [BASE, RC, lsl #3]
+    |  and TAB:CARG2, CARG2, #LJ_GCVMASK
+    |  ldr CARG1, TAB:CARG2->array
+    |    ldrb TMP2w, TAB:CARG2->marked
+    |   ldr CARG4w, TAB:CARG2->asize
+    |  add CARG1, CARG1, TMP1, uxtw #3
+    |    tbnz TMP2w, #2, >7		// isblack(table)
+    |2:
+    |   cmp TMP1w, CARG4w		// In array part?
+    |   bhs ->vmeta_tsetr
+    |->BC_TSETR_Z:
+    |   ldr TMP0, [BASE, RA, lsl #3]
+    |   str TMP0, [CARG1]
+    |   ins_next
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, TMP2w, TMP0
+    |  b <2
+    break;
+
+  case BC_TSETM:
+    |  // RA = base (table at base-1), RC = num_const (start index)
+    |  add RA, BASE, RA, lsl #3
+    |1:
+    |   ldr RBw, SAVE_MULTRES
+    |  ldr TAB:CARG2, [RA, #-8]		// Guaranteed to be a table.
+    |   ldr TMP1, [KBASE, RC, lsl #3]	// Integer constant is in lo-word.
+    |    sub RB, RB, #8
+    |    cbz RB, >4			// Nothing to copy?
+    |  and TAB:CARG2, CARG2, #LJ_GCVMASK
+    |  ldr CARG1w, TAB:CARG2->asize
+    |   add CARG3w, TMP1w, RBw, lsr #3
+    |   ldr CARG4, TAB:CARG2->array
+    |  cmp CARG3, CARG1
+    |    add RB, RA, RB
+    |  bhi >5
+    |   add TMP1, CARG4, TMP1w, uxtw #3
+    |    ldrb TMP2w, TAB:CARG2->marked
+    |3:  // Copy result slots to table.
+    |   ldr TMP0, [RA], #8
+    |   str TMP0, [TMP1], #8
+    |  cmp RA, RB
+    |  blo <3
+    |    tbnz TMP2w, #2, >7		// isblack(table)
+    |4:
+    |  ins_next
+    |
+    |5:  // Need to resize array part.
+    |   str BASE, L->base
+    |  mov CARG1, L
+    |   str PC, SAVE_PC
+    |  bl extern lj_tab_reasize		// (lua_State *L, GCtab *t, int nasize)
+    |  // Must not reallocate the stack.
+    |  b <1
+    |
+    |7:  // Possible table write barrier for any value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, TMP2w, TMP1
+    |  b <4
+    break;
+
+  /* -- Calls and vararg handling ----------------------------------------- */
+
+  case BC_CALLM:
+    |  // RA = base, (RB = nresults+1,) RC = extra_nargs
+    |  ldr TMP0w, SAVE_MULTRES
+    |  decode_RC8RD NARGS8:RC, RC
+    |  add NARGS8:RC, NARGS8:RC, TMP0
+    |  b ->BC_CALL_Z
+    break;
+  case BC_CALL:
+    |  decode_RC8RD NARGS8:RC, RC
+    |  // RA = base, (RB = nresults+1,) RC = (nargs+1)*8
+    |->BC_CALL_Z:
+    |  mov RB, BASE			// Save old BASE for vmeta_call.
+    |  add BASE, BASE, RA, lsl #3
+    |  ldr CARG3, [BASE]
+    |   sub NARGS8:RC, NARGS8:RC, #8
+    |   add BASE, BASE, #16
+    |  checkfunc CARG3, ->vmeta_call
+    |  ins_call
+    break;
+
+  case BC_CALLMT:
+    |  // RA = base, (RB = 0,) RC = extra_nargs
+    |  ldr TMP0w, SAVE_MULTRES
+    |  add NARGS8:RC, TMP0, RC, lsl #3
+    |  b ->BC_CALLT1_Z
+    break;
+  case BC_CALLT:
+    |  lsl NARGS8:RC, RC, #3
+    |  // RA = base, (RB = 0,) RC = (nargs+1)*8
+    |->BC_CALLT1_Z:
+    |  add RA, BASE, RA, lsl #3
+    |  ldr TMP1, [RA]
+    |   sub NARGS8:RC, NARGS8:RC, #8
+    |   add RA, RA, #16
+    |  checktp CARG3, TMP1, LJ_TFUNC, ->vmeta_callt
+    |  ldr PC, [BASE, FRAME_PC]
+    |->BC_CALLT2_Z:
+    |   mov RB, #0
+    |   ldrb TMP2w, LFUNC:CARG3->ffid
+    |  tst PC, #FRAME_TYPE
+    |  bne >7
+    |1:
+    |  str TMP1, [BASE, FRAME_FUNC]	// Copy function down, but keep PC.
+    |  cbz NARGS8:RC, >3
+    |2:
+    |  ldr TMP0, [RA, RB]
+    |   add TMP1, RB, #8
+    |   cmp TMP1, NARGS8:RC
+    |  str TMP0, [BASE, RB]
+    |    mov RB, TMP1
+    |   bne <2
+    |3:
+    |  cmp TMP2, #1			// (> FF_C) Calling a fast function?
+    |  bhi >5
+    |4:
+    |  ins_callt
+    |
+    |5:  // Tailcall to a fast function with a Lua frame below.
+    |  ldrb RAw, [PC, #-4+OFS_RA]
+    |  sub CARG1, BASE, RA, lsl #3
+    |  ldr LFUNC:CARG1, [CARG1, #-32]
+    |  and LFUNC:CARG1, CARG1, #LJ_GCVMASK
+    |  ldr CARG1, LFUNC:CARG1->pc
+    |  ldr KBASE, [CARG1, #PC2PROTO(k)]
+    |  b <4
+    |
+    |7:  // Tailcall from a vararg function.
+    |  eor PC, PC, #FRAME_VARG
+    |  tst PC, #FRAME_TYPEP		// Vararg frame below?
+    |  csel TMP2, RB, TMP2, ne		// Clear ffid if no Lua function below.
+    |  bne <1
+    |  sub BASE, BASE, PC
+    |  ldr PC, [BASE, FRAME_PC]
+    |  tst PC, #FRAME_TYPE
+    |  csel TMP2, RB, TMP2, ne		// Clear ffid if no Lua function below.
+    |  b <1
+    break;
+
+  case BC_ITERC:
+    |  // RA = base, (RB = nresults+1, RC = nargs+1 (2+1))
+    |  add RA, BASE, RA, lsl #3
+    |  ldr CARG3, [RA, #-24]
+    |    mov RB, BASE			// Save old BASE for vmeta_call.
+    |   ldp CARG1, CARG2, [RA, #-16]
+    |    add BASE, RA, #16
+    |    mov NARGS8:RC, #16		// Iterators get 2 arguments.
+    |  str CARG3, [RA]			// Copy callable.
+    |   stp CARG1, CARG2, [RA, #16]	// Copy state and control var.
+    |  checkfunc CARG3, ->vmeta_call
+    |  ins_call
+    break;
+
+  case BC_ITERN:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |->vm_IITERN:
+    |  // RA = base, (RB = nresults+1, RC = nargs+1 (2+1))
+    |  add RA, BASE, RA, lsl #3
+    |  ldr TAB:RB, [RA, #-16]
+    |    ldrh TMP3w, [PC, # OFS_RD]
+    |  ldr CARG1w, [RA, #-8+LO]		// Get index from control var.
+    |    add PC, PC, #4
+    |    add TMP3, PC, TMP3, lsl #2
+    |  and TAB:RB, RB, #LJ_GCVMASK
+    |    sub TMP3, TMP3, #0x20000
+    |  ldr TMP1w, TAB:RB->asize
+    |   ldr CARG2, TAB:RB->array
+    |1:  // Traverse array part.
+    |  subs RC, CARG1, TMP1
+    |   add CARG3, CARG2, CARG1, lsl #3
+    |  bhs >5				// Index points after array part?
+    |   ldr TMP0, [CARG3]
+    |   cmp TMP0, TISNIL
+    |   cinc CARG1, CARG1, eq		// Skip holes in array part.
+    |   beq <1
+    |   add CARG1, CARG1, TISNUM
+    |   stp CARG1, TMP0, [RA]
+    |    add CARG1, CARG1, #1
+    |3:
+    |    str CARG1w, [RA, #-8+LO]	// Update control var.
+    |  mov PC, TMP3
+    |4:
+    |  ins_next
+    |
+    |5:  // Traverse hash part.
+    |  ldr TMP2w, TAB:RB->hmask
+    |   ldr NODE:RB, TAB:RB->node
+    |6:
+    |   add CARG1, RC, RC, lsl #1
+    |  cmp RC, TMP2			// End of iteration? Branch to ITERN+1.
+    |   add NODE:CARG3, NODE:RB, CARG1, lsl #3  // node = tab->node + idx*3*8
+    |  bhi <4
+    |  ldp TMP0, CARG1, NODE:CARG3->val
+    |  cmp TMP0, TISNIL
+    |   add RC, RC, #1
+    |  beq <6				// Skip holes in hash part.
+    |  stp CARG1, TMP0, [RA]
+    |  add CARG1, RC, TMP1
+    |  b <3
+    break;
+
+  case BC_ISNEXT:
+    |  // RA = base, RC = target (points to ITERN)
+    |  add RA, BASE, RA, lsl #3
+    |  ldr CFUNC:CARG1, [RA, #-24]
+    |     add RC, PC, RC, lsl #2
+    |   ldp TAB:CARG3, CARG4, [RA, #-16]
+    |     sub RC, RC, #0x20000
+    |  checkfunc CFUNC:CARG1, >5
+    |   asr TMP0, TAB:CARG3, #47
+    |  ldrb TMP1w, CFUNC:CARG1->ffid
+    |   cmn TMP0, #-LJ_TTAB
+    |   ccmp CARG4, TISNIL, #0, eq
+    |  ccmp TMP1w, #FF_next_N, #0, eq
+    |  bne >5
+    |  mov TMP0w, #0xfffe7fff		// LJ_KEYINDEX
+    |  lsl TMP0, TMP0, #32
+    |  str TMP0, [RA, #-8]		// Initialize control var.
+    |1:
+    |     mov PC, RC
+    |  ins_next
+    |
+    |5:  // Despecialize bytecode if any of the checks fail.
+    |.if JIT
+    |  ldrb TMP2w, [RC, # OFS_OP]
+    |.endif
+    |  mov TMP0, #BC_JMP
+    |   mov TMP1, #BC_ITERC
+    |  strb TMP0w, [PC, #-4+OFS_OP]
+    |.if JIT
+    |  cmp TMP2w, #BC_ITERN
+    |  bne >6
+    |.endif
+    |   strb TMP1w, [RC, # OFS_OP]
+    |  b <1
+    |.if JIT
+    |6:  // Unpatch JLOOP.
+    |  ldr RA, [GL, #GL_J(trace)]
+    |  ldrh TMP2w, [RC, # OFS_RD]
+    |  ldr TRACE:RA, [RA, TMP2, lsl #3]
+    |  ldr TMP2w, TRACE:RA->startins
+    |  bfxil TMP2w, TMP1w, #0, #8
+    |  str TMP2w, [RC]
+    |  b <1
+    |.endif
+    break;
+
+  case BC_VARG:
+    |  decode_RB RB, INS
+    |   and RC, RC, #255
+    |  // RA = base, RB = (nresults+1), RC = numparams
+    |  ldr TMP1, [BASE, FRAME_PC]
+    |  add RC, BASE, RC, lsl #3
+    |   add RA, BASE, RA, lsl #3
+    |  add RC, RC, #FRAME_VARG
+    |   add TMP2, RA, RB, lsl #3
+    |  sub RC, RC, TMP1			// RC = vbase
+    |  // Note: RC may now be even _above_ BASE if nargs was < numparams.
+    |   sub TMP3, BASE, #16		// TMP3 = vtop
+    |  cbz RB, >5
+    |   sub TMP2, TMP2, #16
+    |1:  // Copy vararg slots to destination slots.
+    |  cmp RC, TMP3
+    |  ldr TMP0, [RC], #8
+    |  csel TMP0, TMP0, TISNIL, lo
+    |   cmp RA, TMP2
+    |  str TMP0, [RA], #8
+    |   blo <1
+    |2:
+    |  ins_next
+    |
+    |5:  // Copy all varargs.
+    |  ldr TMP0, L->maxstack
+    |   subs TMP2, TMP3, RC
+    |   csel RB, xzr, TMP2, le		// MULTRES = (max(vtop-vbase,0)+1)*8
+    |   add RB, RB, #8
+    |  add TMP1, RA, TMP2
+    |   str RBw, SAVE_MULTRES
+    |   ble <2				// Nothing to copy.
+    |  cmp TMP1, TMP0
+    |  bhi >7
+    |6:
+    |  ldr TMP0, [RC], #8
+    |  str TMP0, [RA], #8
+    |  cmp RC, TMP3
+    |  blo <6
+    |  b <2
+    |
+    |7:  // Grow stack for varargs.
+    |  lsr CARG2, TMP2, #3
+    |   stp BASE, RA, L->base
+    |  mov CARG1, L
+    |  sub RC, RC, BASE			// Need delta, because BASE may change.
+    |   str PC, SAVE_PC
+    |  bl extern lj_state_growstack	// (lua_State *L, int n)
+    |  ldp BASE, RA, L->base
+    |  add RC, BASE, RC
+    |  sub TMP3, BASE, #16
+    |  b <6
+    break;
+
+  /* -- Returns ----------------------------------------------------------- */
+
+  case BC_RETM:
+    |  // RA = results, RC = extra results
+    |  ldr TMP0w, SAVE_MULTRES
+    |   ldr PC, [BASE, FRAME_PC]
+    |    add RA, BASE, RA, lsl #3
+    |  add RC, TMP0, RC, lsl #3
+    |  b ->BC_RETM_Z
+    break;
+
+  case BC_RET:
+    |  // RA = results, RC = nresults+1
+    |  ldr PC, [BASE, FRAME_PC]
+    |   lsl RC, RC, #3
+    |    add RA, BASE, RA, lsl #3
+    |->BC_RETM_Z:
+    |   str RCw, SAVE_MULTRES
+    |1:
+    |  ands CARG1, PC, #FRAME_TYPE
+    |   eor CARG2, PC, #FRAME_VARG
+    |  bne ->BC_RETV2_Z
+    |
+    |->BC_RET_Z:
+    |  // BASE = base, RA = resultptr, RC = (nresults+1)*8, PC = return
+    |  ldr INSw, [PC, #-4]
+    |  subs TMP1, RC, #8
+    |   sub CARG3, BASE, #16
+    |  beq >3
+    |2:
+    |  ldr TMP0, [RA], #8
+    |   add BASE, BASE, #8
+    |   sub TMP1, TMP1, #8
+    |  str TMP0, [BASE, #-24]
+    |   cbnz TMP1, <2
+    |3:
+    |  decode_RA RA, INS
+    |  sub CARG4, CARG3, RA, lsl #3
+    |   decode_RB RB, INS
+    |  ldr LFUNC:CARG1, [CARG4, FRAME_FUNC]
+    |5:
+    |  cmp RC, RB, lsl #3		// More results expected?
+    |  blo >6
+    |  and LFUNC:CARG1, CARG1, #LJ_GCVMASK
+    |  mov BASE, CARG4
+    |  ldr CARG2, LFUNC:CARG1->pc
+    |  ldr KBASE, [CARG2, #PC2PROTO(k)]
+    |   ins_next
+    |
+    |6:  // Fill up results with nil.
+    |  add BASE, BASE, #8
+    |   add RC, RC, #8
+    |  str TISNIL, [BASE, #-24]
+    |  b <5
+    |
+    |->BC_RETV1_Z:  // Non-standard return case.
+    |  add RA, BASE, RA, lsl #3
+    |->BC_RETV2_Z:
+    |  tst CARG2, #FRAME_TYPEP
+    |  bne ->vm_return
+    |  // Return from vararg function: relocate BASE down.
+    |  sub BASE, BASE, CARG2
+    |  ldr PC, [BASE, FRAME_PC]
+    |  b <1
+    break;
+
+  case BC_RET0: case BC_RET1:
+    |  // RA = results, RC = nresults+1
+    |  ldr PC, [BASE, FRAME_PC]
+    |   lsl RC, RC, #3
+    |   str RCw, SAVE_MULTRES
+    |  ands CARG1, PC, #FRAME_TYPE
+    |   eor CARG2, PC, #FRAME_VARG
+    |  bne ->BC_RETV1_Z
+    |   ldr INSw, [PC, #-4]
+    if (op == BC_RET1) {
+      |  ldr TMP0, [BASE, RA, lsl #3]
+    }
+    |  sub CARG4, BASE, #16
+    |   decode_RA RA, INS
+    |  sub BASE, CARG4, RA, lsl #3
+    if (op == BC_RET1) {
+      |  str TMP0, [CARG4], #8
+    }
+    |   decode_RB RB, INS
+    |  ldr LFUNC:CARG1, [BASE, FRAME_FUNC]
+    |5:
+    |  cmp RC, RB, lsl #3
+    |  blo >6
+    |  and LFUNC:CARG1, CARG1, #LJ_GCVMASK
+    |  ldr CARG2, LFUNC:CARG1->pc
+    |  ldr KBASE, [CARG2, #PC2PROTO(k)]
+    |  ins_next
+    |
+    |6:  // Fill up results with nil.
+    |  add RC, RC, #8
+    |  str TISNIL, [CARG4], #8
+    |  b <5
+    break;
+
+  /* -- Loops and branches ------------------------------------------------ */
+
+  |.define FOR_IDX,  [RA];      .define FOR_TIDX,  [RA, #4]
+  |.define FOR_STOP, [RA, #8];  .define FOR_TSTOP, [RA, #12]
+  |.define FOR_STEP, [RA, #16]; .define FOR_TSTEP, [RA, #20]
+  |.define FOR_EXT,  [RA, #24]; .define FOR_TEXT,  [RA, #28]
+
+  case BC_FORL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IFORL follows.
+    break;
+
+  case BC_JFORI:
+  case BC_JFORL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_FORI:
+  case BC_IFORL:
+    |  // RA = base, RC = target (after end of loop or start of loop)
+    vk = (op == BC_IFORL || op == BC_JFORL);
+    |  add RA, BASE, RA, lsl #3
+    |  ldp CARG1, CARG2, FOR_IDX		// CARG1 = IDX, CARG2 = STOP
+    |   ldr CARG3, FOR_STEP			// CARG3 = STEP
+    if (op != BC_JFORL) {
+      |   add RC, PC, RC, lsl #2
+      |   sub RC, RC, #0x20000
+    }
+    |  checkint CARG1, >5
+    if (!vk) {
+      |  checkint CARG2, ->vmeta_for
+      |   checkint CARG3, ->vmeta_for
+      |  tbnz CARG3w, #31, >4
+      |  cmp CARG1w, CARG2w
+    } else {
+      |  adds CARG1w, CARG1w, CARG3w
+      |  bvs >2
+      |   add TMP0, CARG1, TISNUM
+      |  tbnz CARG3w, #31, >4
+      |  cmp CARG1w, CARG2w
+    }
+    |1:
+    if (op == BC_FORI) {
+      |  csel PC, RC, PC, gt
+    } else if (op == BC_JFORI) {
+      |  mov PC, RC
+      |  ldrh RCw, [RC, #-4+OFS_RD]
+    } else if (op == BC_IFORL) {
+      |  csel PC, RC, PC, le
+    }
+    if (vk) {
+      |   str TMP0, FOR_IDX
+      |   str TMP0, FOR_EXT
+    } else {
+      |  str CARG1, FOR_EXT
+    }
+    if (op == BC_JFORI || op == BC_JFORL) {
+      |  ble =>BC_JLOOP
+    }
+    |2:
+    |   ins_next
+    |
+    |4:  // Invert check for negative step.
+    |  cmp CARG2w, CARG1w
+    |  b <1
+    |
+    |5:  // FP loop.
+    |  ldp d0, d1, FOR_IDX
+    |  blo ->vmeta_for
+    if (!vk) {
+      |  checknum CARG2, ->vmeta_for
+      |   checknum CARG3, ->vmeta_for
+      |  str d0, FOR_EXT
+    } else {
+      |  ldr d2, FOR_STEP
+      |  fadd d0, d0, d2
+    }
+    |  tbnz CARG3, #63, >7
+    |  fcmp d0, d1
+    |6:
+    if (vk) {
+      |  str d0, FOR_IDX
+      |  str d0, FOR_EXT
+    }
+    if (op == BC_FORI) {
+      |  csel PC, RC, PC, hi
+    } else if (op == BC_JFORI) {
+      |  ldrh RCw, [RC, #-4+OFS_RD]
+      |  bls =>BC_JLOOP
+    } else if (op == BC_IFORL) {
+      |  csel PC, RC, PC, ls
+    } else {
+      |  bls =>BC_JLOOP
+    }
+    |  b <2
+    |
+    |7:  // Invert check for negative step.
+    |  fcmp d1, d0
+    |  b <6
+    break;
+
+  case BC_ITERL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IITERL follows.
+    break;
+
+  case BC_JITERL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IITERL:
+    |  // RA = base, RC = target
+    |  ldr CARG1, [BASE, RA, lsl #3]
+    |   add TMP1, BASE, RA, lsl #3
+    |  cmp CARG1, TISNIL
+    |  beq >1				// Stop if iterator returned nil.
+    if (op == BC_JITERL) {
+      |  str CARG1, [TMP1, #-8]
+      |  b =>BC_JLOOP
+    } else {
+      |  add TMP0, PC, RC, lsl #2	// Otherwise save control var + branch.
+      |  sub PC, TMP0, #0x20000
+      |  str CARG1, [TMP1, #-8]
+    }
+    |1:
+    |  ins_next
+    break;
+
+  case BC_LOOP:
+    |  // RA = base, RC = target (loop extent)
+    |  // Note: RA/RC is only used by trace recorder to determine scope/extent
+    |  // This opcode does NOT jump, it's only purpose is to detect a hot loop.
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_ILOOP follows.
+    break;
+
+  case BC_ILOOP:
+    |  // RA = base, RC = target (loop extent)
+    |  ins_next
+    break;
+
+  case BC_JLOOP:
+    |.if JIT
+    |  // RA = base (ignored), RC = traceno
+    |  ldr CARG1, [GL, #GL_J(trace)]
+    |   mov CARG2w, #0  // Traces on ARM64 don't store the trace #, so use 0.
+    |  ldr TRACE:RC, [CARG1, RC, lsl #3]
+    |   st_vmstate CARG2w
+    |  ldr RA, TRACE:RC->mcode
+    |   str BASE, GL->jit_base
+    |   str L, GL->tmpbuf.L
+    |  sub sp, sp, #16	// See SPS_FIXED. Avoids sp adjust in every root trace.
+    |  br RA
+    |.endif
+    break;
+
+  case BC_JMP:
+    |  // RA = base (only used by trace recorder), RC = target
+    |  add RC, PC, RC, lsl #2
+    |  sub PC, RC, #0x20000
+    |  ins_next
+    break;
+
+  /* -- Function headers -------------------------------------------------- */
+
+  case BC_FUNCF:
+    |.if JIT
+    |  hotcall
+    |.endif
+  case BC_FUNCV:  /* NYI: compiled vararg functions. */
+    |  // Fall through. Assumes BC_IFUNCF/BC_IFUNCV follow.
+    break;
+
+  case BC_JFUNCF:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IFUNCF:
+    |  // BASE = new base, RA = BASE+framesize*8, CARG3 = LFUNC, RC = nargs*8
+    |  ldr CARG1, L->maxstack
+    |   ldrb TMP1w, [PC, #-4+PC2PROTO(numparams)]
+    |    ldr KBASE, [PC, #-4+PC2PROTO(k)]
+    |  cmp RA, CARG1
+    |  bhi ->vm_growstack_l
+    |2:
+    |  cmp NARGS8:RC, TMP1, lsl #3	// Check for missing parameters.
+    |  blo >3
+    if (op == BC_JFUNCF) {
+      |  decode_RD RC, INS
+      |  b =>BC_JLOOP
+    } else {
+      |  ins_next
+    }
+    |
+    |3:  // Clear missing parameters.
+    |  str TISNIL, [BASE, NARGS8:RC]
+    |  add NARGS8:RC, NARGS8:RC, #8
+    |  b <2
+    break;
+
+  case BC_JFUNCV:
+#if !LJ_HASJIT
+    break;
+#endif
+    |  NYI  // NYI: compiled vararg functions
+    break;  /* NYI: compiled vararg functions. */
+
+  case BC_IFUNCV:
+    |  // BASE = new base, RA = BASE+framesize*8, CARG3 = LFUNC, RC = nargs*8
+    |  ldr CARG1, L->maxstack
+    |   movn TMP0, #~LJ_TFUNC
+    |   add TMP2, BASE, RC
+    |   add LFUNC:CARG3, CARG3, TMP0, lsl #47
+    |  add RA, RA, RC
+    |   add TMP0, RC, #16+FRAME_VARG
+    |   str LFUNC:CARG3, [TMP2], #8	// Store (tagged) copy of LFUNC.
+    |    ldr KBASE, [PC, #-4+PC2PROTO(k)]
+    |  cmp RA, CARG1
+    |   str TMP0, [TMP2], #8		// Store delta + FRAME_VARG.
+    |  bhs ->vm_growstack_l
+    |   sub RC, TMP2, #16
+    |  ldrb TMP1w, [PC, #-4+PC2PROTO(numparams)]
+    |   mov RA, BASE
+    |   mov BASE, TMP2
+    |  cbz TMP1, >2
+    |1:
+    |  cmp RA, RC			// Less args than parameters?
+    |  bhs >3
+    |   ldr TMP0, [RA]
+    |  sub TMP1, TMP1, #1
+    |    str TISNIL, [RA], #8		// Clear old fixarg slot (help the GC).
+    |   str TMP0, [TMP2], #8
+    |  cbnz TMP1, <1
+    |2:
+    |  ins_next
+    |
+    |3:
+    |  sub TMP1, TMP1, #1
+    |   str TISNIL, [TMP2], #8
+    |  cbz TMP1, <2
+    |  b <3
+    break;
+
+  case BC_FUNCC:
+  case BC_FUNCCW:
+    |  // BASE = new base, RA = BASE+framesize*8, CARG3 = CFUNC, RC = nargs*8
+    if (op == BC_FUNCC) {
+      |  ldr CARG4, CFUNC:CARG3->f
+    } else {
+      |  ldr CARG4, GL->wrapf
+    }
+    |   add CARG2, RA, NARGS8:RC
+    |   ldr CARG1, L->maxstack
+    |  add RC, BASE, NARGS8:RC
+    |   cmp CARG2, CARG1
+    |  stp BASE, RC, L->base
+    if (op == BC_FUNCCW) {
+      |  ldr CARG2, CFUNC:CARG3->f
+    }
+    |    mv_vmstate TMP0w, C
+    |  mov CARG1, L
+    |   bhi ->vm_growstack_c		// Need to grow stack.
+    |    st_vmstate TMP0w
+    |  blr CARG4			// (lua_State *L [, lua_CFunction f])
+    |  // Returns nresults.
+    |  ldp BASE, TMP1, L->base
+    |    str L, GL->cur_L
+    |   sbfiz RC, CRET1, #3, #32
+    |    st_vmstate ST_INTERP
+    |  ldr PC, [BASE, FRAME_PC]
+    |   sub RA, TMP1, RC		// RA = L->top - nresults*8
+    |  b ->vm_returnc
+    break;
+
+  /* ---------------------------------------------------------------------- */
+
+  default:
+    fprintf(stderr, "Error: undefined opcode BC_%s\n", bc_names[op]);
+    exit(2);
+    break;
+  }
+}
+
+static int build_backend(BuildCtx *ctx)
+{
+  int op;
+
+  dasm_growpc(Dst, BC__MAX);
+
+  build_subroutines(ctx);
+
+  |.code_op
+  for (op = 0; op < BC__MAX; op++)
+    build_ins(ctx, (BCOp)op, op);
+
+  return BC__MAX;
+}
+
+/* Emit pseudo frame-info for all assembler functions. */
+static void emit_asm_debug(BuildCtx *ctx)
+{
+  int fcofs = (int)((uint8_t *)ctx->glob[GLOB_vm_ffi_call] - ctx->code);
+  int i;
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+    fprintf(ctx->fp, "\t.section .debug_frame,\"\",%%progbits\n");
+    fprintf(ctx->fp,
+	".Lframe0:\n"
+	"\t.long .LECIE0-.LSCIE0\n"
+	".LSCIE0:\n"
+	"\t.long 0xffffffff\n"
+	"\t.byte 0x1\n"
+	"\t.string \"\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -8\n"
+	"\t.byte 30\n"				/* Return address is in lr. */
+	"\t.byte 0xc\n\t.uleb128 29\n\t.uleb128 16\n"	/* def_cfa fp 16 */
+	"\t.align 3\n"
+	".LECIE0:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE0:\n"
+	"\t.long .LEFDE0-.LASFDE0\n"
+	".LASFDE0:\n"
+	"\t.long .Lframe0\n"
+	"\t.quad .Lbegin\n"
+	"\t.quad %d\n"
+	"\t.byte 0x9e\n\t.uleb128 1\n"		/* offset lr */
+	"\t.byte 0x9d\n\t.uleb128 2\n",		/* offset fp */
+	fcofs);
+    for (i = 19; i <= 28; i++)  /* offset x19-x28 */
+      fprintf(ctx->fp, "\t.byte 0x%x\n\t.uleb128 %d\n", 0x80+i, i+(3-19));
+    for (i = 8; i <= 15; i++)  /* offset d8-d15 */
+      fprintf(ctx->fp, "\t.byte 5\n\t.uleb128 0x%x\n\t.uleb128 %d\n",
+	      64+i, i+(3+(28-19+1)-8));
+    fprintf(ctx->fp,
+	"\t.align 3\n"
+	".LEFDE0:\n\n");
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".LSFDE1:\n"
+	"\t.long .LEFDE1-.LASFDE1\n"
+	".LASFDE1:\n"
+	"\t.long .Lframe0\n"
+	"\t.quad lj_vm_ffi_call\n"
+	"\t.quad %d\n"
+	"\t.byte 0x9e\n\t.uleb128 1\n"		/* offset lr */
+	"\t.byte 0x9d\n\t.uleb128 2\n"		/* offset fp */
+	"\t.byte 0x93\n\t.uleb128 3\n"		/* offset x19 */
+	"\t.byte 0x94\n\t.uleb128 4\n"		/* offset x20 */
+	"\t.align 3\n"
+	".LEFDE1:\n\n", (int)ctx->codesz - fcofs);
+#endif
+#if !LJ_NO_UNWIND
+    fprintf(ctx->fp, "\t.section .eh_frame,\"a\",%%progbits\n");
+    fprintf(ctx->fp,
+	".Lframe1:\n"
+	"\t.long .LECIE1-.LSCIE1\n"
+	".LSCIE1:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zPR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -8\n"
+	"\t.byte 30\n"				/* Return address is in lr. */
+	"\t.uleb128 6\n"			/* augmentation length */
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.long lj_err_unwind_dwarf-.\n"
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.uleb128 29\n\t.uleb128 16\n"	/* def_cfa fp 16 */
+	"\t.align 3\n"
+	".LECIE1:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE2:\n"
+	"\t.long .LEFDE2-.LASFDE2\n"
+	".LASFDE2:\n"
+	"\t.long .LASFDE2-.Lframe1\n"
+	"\t.long .Lbegin-.\n"
+	"\t.long %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0x9e\n\t.uleb128 1\n"		/* offset lr */
+	"\t.byte 0x9d\n\t.uleb128 2\n",		/* offset fp */
+	fcofs);
+    for (i = 19; i <= 28; i++)  /* offset x19-x28 */
+      fprintf(ctx->fp, "\t.byte 0x%x\n\t.uleb128 %d\n", 0x80+i, i+(3-19));
+    for (i = 8; i <= 15; i++)  /* offset d8-d15 */
+      fprintf(ctx->fp, "\t.byte 5\n\t.uleb128 0x%x\n\t.uleb128 %d\n",
+	      64+i, i+(3+(28-19+1)-8));
+    fprintf(ctx->fp,
+	"\t.align 3\n"
+	".LEFDE2:\n\n");
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".Lframe2:\n"
+	"\t.long .LECIE2-.LSCIE2\n"
+	".LSCIE2:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -8\n"
+	"\t.byte 30\n"				/* Return address is in lr. */
+	"\t.uleb128 1\n"			/* augmentation length */
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.uleb128 29\n\t.uleb128 16\n"	/* def_cfa fp 16 */
+	"\t.align 3\n"
+	".LECIE2:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE3:\n"
+	"\t.long .LEFDE3-.LASFDE3\n"
+	".LASFDE3:\n"
+	"\t.long .LASFDE3-.Lframe2\n"
+	"\t.long lj_vm_ffi_call-.\n"
+	"\t.long %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0x9e\n\t.uleb128 1\n"		/* offset lr */
+	"\t.byte 0x9d\n\t.uleb128 2\n"		/* offset fp */
+	"\t.byte 0x93\n\t.uleb128 3\n"		/* offset x19 */
+	"\t.byte 0x94\n\t.uleb128 4\n"		/* offset x20 */
+	"\t.align 3\n"
+	".LEFDE3:\n\n", (int)ctx->codesz - fcofs);
+#endif
+#endif
+    break;
+#if !LJ_NO_UNWIND
+  case BUILD_machasm: {
+#if LJ_HASFFI
+    int fcsize = 0;
+#endif
+    int j;
+    fprintf(ctx->fp, "\t.section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support\n");
+    fprintf(ctx->fp,
+	"EH_frame1:\n"
+	"\t.set L$set$x,LECIEX-LSCIEX\n"
+	"\t.long L$set$x\n"
+	"LSCIEX:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.ascii \"zPR\\0\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -8\n"
+	"\t.byte 30\n"				/* Return address is in lr. */
+	"\t.uleb128 6\n"			/* augmentation length */
+	"\t.byte 0x9b\n"			/* indirect|pcrel|sdata4 */
+	"\t.long _lj_err_unwind_dwarf@GOT-.\n"
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.uleb128 29\n\t.uleb128 16\n"	/* def_cfa fp 16 */
+	"\t.align 3\n"
+	"LECIEX:\n\n");
+    for (j = 0; j < ctx->nsym; j++) {
+      const char *name = ctx->sym[j].name;
+      int32_t size = ctx->sym[j+1].ofs - ctx->sym[j].ofs;
+      if (size == 0) continue;
+#if LJ_HASFFI
+      if (!strcmp(name, "_lj_vm_ffi_call")) { fcsize = size; continue; }
+#endif
+      fprintf(ctx->fp,
+	"LSFDE%d:\n"
+	"\t.set L$set$%d,LEFDE%d-LASFDE%d\n"
+	"\t.long L$set$%d\n"
+	"LASFDE%d:\n"
+	"\t.long LASFDE%d-EH_frame1\n"
+	"\t.long %s-.\n"
+	"\t.long %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0x9e\n\t.uleb128 1\n"		/* offset lr */
+	"\t.byte 0x9d\n\t.uleb128 2\n",		/* offset fp */
+	j, j, j, j, j, j, j, name, size);
+      for (i = 19; i <= 28; i++)  /* offset x19-x28 */
+	fprintf(ctx->fp, "\t.byte 0x%x\n\t.uleb128 %d\n", 0x80+i, i+(3-19));
+      for (i = 8; i <= 15; i++)  /* offset d8-d15 */
+	fprintf(ctx->fp, "\t.byte 5\n\t.uleb128 0x%x\n\t.uleb128 %d\n",
+		64+i, i+(3+(28-19+1)-8));
+      fprintf(ctx->fp,
+	"\t.align 3\n"
+	"LEFDE%d:\n\n", j);
+    }
+#if LJ_HASFFI
+    if (fcsize) {
+      fprintf(ctx->fp,
+	"EH_frame2:\n"
+	"\t.set L$set$y,LECIEY-LSCIEY\n"
+	"\t.long L$set$y\n"
+	"LSCIEY:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.ascii \"zR\\0\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -8\n"
+	"\t.byte 30\n"				/* Return address is in lr. */
+	"\t.uleb128 1\n"			/* augmentation length */
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.uleb128 29\n\t.uleb128 16\n"	/* def_cfa fp 16 */
+	"\t.align 3\n"
+	"LECIEY:\n\n");
+      fprintf(ctx->fp,
+	"LSFDEY:\n"
+	"\t.set L$set$yy,LEFDEY-LASFDEY\n"
+	"\t.long L$set$yy\n"
+	"LASFDEY:\n"
+	"\t.long LASFDEY-EH_frame2\n"
+	"\t.long _lj_vm_ffi_call-.\n"
+	"\t.long %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0x9e\n\t.uleb128 1\n"		/* offset lr */
+	"\t.byte 0x9d\n\t.uleb128 2\n"		/* offset fp */
+	"\t.byte 0x93\n\t.uleb128 3\n"		/* offset x19 */
+	"\t.byte 0x94\n\t.uleb128 4\n"		/* offset x20 */
+	"\t.align 3\n"
+	"LEFDEY:\n\n", fcsize);
+    }
+#endif
+    fprintf(ctx->fp, ".subsections_via_symbols\n");
+    }
+    break;
+#endif
+  default:
+    break;
+  }
+}
+
diff --git a/libs/luajit-cmake/luajit/src/vm_mips.dasc b/libs/luajit-cmake/luajit/src/vm_mips.dasc
new file mode 100644
index 0000000..34645bf
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/vm_mips.dasc
@@ -0,0 +1,5392 @@
+|// Low-level VM code for MIPS CPUs.
+|// Bytecode interpreter, fast functions and helper functions.
+|// Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+|//
+|// MIPS soft-float support contributed by Djordje Kovacevic and
+|// Stefan Pejic from RT-RK.com, sponsored by Cisco Systems, Inc.
+|
+|.arch mips
+|.section code_op, code_sub
+|
+|.actionlist build_actionlist
+|.globals GLOB_
+|.globalnames globnames
+|.externnames extnames
+|
+|// Note: The ragged indentation of the instructions is intentional.
+|//       The starting columns indicate data dependencies.
+|
+|//-----------------------------------------------------------------------
+|
+|// Fixed register assignments for the interpreter.
+|// Don't use: r0 = 0, r26/r27 = reserved, r28 = gp, r29 = sp, r31 = ra
+|
+|.macro .FPU, a, b
+|.if FPU
+|  a, b
+|.endif
+|.endmacro
+|
+|// The following must be C callee-save (but BASE is often refetched).
+|.define BASE,		r16	// Base of current Lua stack frame.
+|.define KBASE,		r17	// Constants of current Lua function.
+|.define PC,		r18	// Next PC.
+|.define DISPATCH,	r19	// Opcode dispatch table.
+|.define LREG,		r20	// Register holding lua_State (also in SAVE_L).
+|.define MULTRES,	r21	// Size of multi-result: (nresults+1)*8.
+|
+|.define JGL,		r30	// On-trace: global_State + 32768.
+|
+|// Constants for type-comparisons, stores and conversions. C callee-save.
+|.define TISNUM,	r22
+|.define TISNIL,	r30
+|.if FPU
+|.define TOBIT,		f30	// 2^52 + 2^51.
+|.endif
+|
+|// The following temporaries are not saved across C calls, except for RA.
+|.define RA,		r23	// Callee-save.
+|.define RB,		r8
+|.define RC,		r9
+|.define RD,		r10
+|.define INS,		r11
+|
+|.define AT,		r1	// Assembler temporary.
+|.define TMP0,		r12
+|.define TMP1,		r13
+|.define TMP2,		r14
+|.define TMP3,		r15
+|
+|// MIPS o32 calling convention.
+|.define CFUNCADDR,	r25
+|.define CARG1,		r4
+|.define CARG2,		r5
+|.define CARG3,		r6
+|.define CARG4,		r7
+|
+|.define CRET1,		r2
+|.define CRET2,		r3
+|
+|.if ENDIAN_LE
+|.define SFRETLO,	CRET1
+|.define SFRETHI,	CRET2
+|.define SFARG1LO,	CARG1
+|.define SFARG1HI,	CARG2
+|.define SFARG2LO,	CARG3
+|.define SFARG2HI,	CARG4
+|.else
+|.define SFRETLO,	CRET2
+|.define SFRETHI,	CRET1
+|.define SFARG1LO,	CARG2
+|.define SFARG1HI,	CARG1
+|.define SFARG2LO,	CARG4
+|.define SFARG2HI,	CARG3
+|.endif
+|
+|.if FPU
+|.define FARG1,		f12
+|.define FARG2,		f14
+|
+|.define FRET1,		f0
+|.define FRET2,		f2
+|.endif
+|
+|// Stack layout while in interpreter. Must match with lj_frame.h.
+|.if FPU		// MIPS32 hard-float.
+|
+|.define CFRAME_SPACE,	112	// Delta for sp.
+|
+|.define SAVE_ERRF,	124(sp)	// 32 bit C frame info.
+|.define SAVE_NRES,	120(sp)
+|.define SAVE_CFRAME,	116(sp)
+|.define SAVE_L,	112(sp)
+|//----- 8 byte aligned, ^^^^ 16 byte register save area, owned by interpreter.
+|.define SAVE_GPR_,	72	// .. 72+10*4: 32 bit GPR saves.
+|.define SAVE_FPR_,	24	// .. 24+6*8: 64 bit FPR saves.
+|
+|.else			// MIPS32 soft-float
+|
+|.define CFRAME_SPACE,	64	// Delta for sp.
+|
+|.define SAVE_ERRF,	76(sp)	// 32 bit C frame info.
+|.define SAVE_NRES,	72(sp)
+|.define SAVE_CFRAME,	68(sp)
+|.define SAVE_L,	64(sp)
+|//----- 8 byte aligned, ^^^^ 16 byte register save area, owned by interpreter.
+|.define SAVE_GPR_,	24	// .. 24+10*4: 32 bit GPR saves.
+|
+|.endif
+|
+|.define SAVE_PC,	20(sp)
+|.define ARG5,		16(sp)
+|.define CSAVE_4,	12(sp)
+|.define CSAVE_3,	8(sp)
+|.define CSAVE_2,	4(sp)
+|.define CSAVE_1,	0(sp)
+|//----- 8 byte aligned, ^^^^ 16 byte register save area, owned by callee.
+|
+|.define ARG5_OFS,	16
+|.define SAVE_MULTRES,	ARG5
+|
+|//-----------------------------------------------------------------------
+|
+|.macro saveregs
+|  addiu sp, sp, -CFRAME_SPACE
+|  sw ra, SAVE_GPR_+9*4(sp)
+|  sw r30, SAVE_GPR_+8*4(sp)
+|   .FPU sdc1 f30, SAVE_FPR_+5*8(sp)
+|  sw r23, SAVE_GPR_+7*4(sp)
+|  sw r22, SAVE_GPR_+6*4(sp)
+|   .FPU sdc1 f28, SAVE_FPR_+4*8(sp)
+|  sw r21, SAVE_GPR_+5*4(sp)
+|  sw r20, SAVE_GPR_+4*4(sp)
+|   .FPU sdc1 f26, SAVE_FPR_+3*8(sp)
+|  sw r19, SAVE_GPR_+3*4(sp)
+|  sw r18, SAVE_GPR_+2*4(sp)
+|   .FPU sdc1 f24, SAVE_FPR_+2*8(sp)
+|  sw r17, SAVE_GPR_+1*4(sp)
+|  sw r16, SAVE_GPR_+0*4(sp)
+|   .FPU sdc1 f22, SAVE_FPR_+1*8(sp)
+|   .FPU sdc1 f20, SAVE_FPR_+0*8(sp)
+|.endmacro
+|
+|.macro restoreregs_ret
+|  lw ra, SAVE_GPR_+9*4(sp)
+|  lw r30, SAVE_GPR_+8*4(sp)
+|   .FPU ldc1 f30, SAVE_FPR_+5*8(sp)
+|  lw r23, SAVE_GPR_+7*4(sp)
+|  lw r22, SAVE_GPR_+6*4(sp)
+|   .FPU ldc1 f28, SAVE_FPR_+4*8(sp)
+|  lw r21, SAVE_GPR_+5*4(sp)
+|  lw r20, SAVE_GPR_+4*4(sp)
+|   .FPU ldc1 f26, SAVE_FPR_+3*8(sp)
+|  lw r19, SAVE_GPR_+3*4(sp)
+|  lw r18, SAVE_GPR_+2*4(sp)
+|   .FPU ldc1 f24, SAVE_FPR_+2*8(sp)
+|  lw r17, SAVE_GPR_+1*4(sp)
+|  lw r16, SAVE_GPR_+0*4(sp)
+|   .FPU ldc1 f22, SAVE_FPR_+1*8(sp)
+|   .FPU ldc1 f20, SAVE_FPR_+0*8(sp)
+|  jr ra
+|  addiu sp, sp, CFRAME_SPACE
+|.endmacro
+|
+|// Type definitions. Some of these are only used for documentation.
+|.type L,		lua_State,	LREG
+|.type GL,		global_State
+|.type TVALUE,		TValue
+|.type GCOBJ,		GCobj
+|.type STR,		GCstr
+|.type TAB,		GCtab
+|.type LFUNC,		GCfuncL
+|.type CFUNC,		GCfuncC
+|.type PROTO,		GCproto
+|.type UPVAL,		GCupval
+|.type NODE,		Node
+|.type NARGS8,		int
+|.type TRACE,		GCtrace
+|.type SBUF,		SBuf
+|
+|//-----------------------------------------------------------------------
+|
+|// Trap for not-yet-implemented parts.
+|.macro NYI; .long 0xec1cf0f0; .endmacro
+|
+|// Macros to mark delay slots.
+|.macro ., a; a; .endmacro
+|.macro ., a,b; a,b; .endmacro
+|.macro ., a,b,c; a,b,c; .endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Endian-specific defines.
+|.if ENDIAN_LE
+|.define FRAME_PC,	-4
+|.define FRAME_FUNC,	-8
+|.define HI,		4
+|.define LO,		0
+|.define OFS_RD,	2
+|.define OFS_RA,	1
+|.define OFS_OP,	0
+|.else
+|.define FRAME_PC,	-8
+|.define FRAME_FUNC,	-4
+|.define HI,		0
+|.define LO,		4
+|.define OFS_RD,	0
+|.define OFS_RA,	2
+|.define OFS_OP,	3
+|.endif
+|
+|// Instruction decode.
+|.macro decode_OP1, dst, ins; andi dst, ins, 0xff; .endmacro
+|.macro decode_OP4a, dst, ins; andi dst, ins, 0xff; .endmacro
+|.macro decode_OP4b, dst; sll dst, dst, 2; .endmacro
+|.macro decode_RC4a, dst, ins; srl dst, ins, 14; .endmacro
+|.macro decode_RC4b, dst; andi dst, dst, 0x3fc; .endmacro
+|.macro decode_RD4b, dst; sll dst, dst, 2; .endmacro
+|.macro decode_RA8a, dst, ins; srl dst, ins, 5; .endmacro
+|.macro decode_RA8b, dst; andi dst, dst, 0x7f8; .endmacro
+|.macro decode_RB8a, dst, ins; srl dst, ins, 21; .endmacro
+|.macro decode_RB8b, dst; andi dst, dst, 0x7f8; .endmacro
+|.macro decode_RD8a, dst, ins; srl dst, ins, 16; .endmacro
+|.macro decode_RD8b, dst; sll dst, dst, 3; .endmacro
+|.macro decode_RDtoRC8, dst, src; andi dst, src, 0x7f8; .endmacro
+|
+|// Instruction fetch.
+|.macro ins_NEXT1
+|  lw INS, 0(PC)
+|   addiu PC, PC, 4
+|.endmacro
+|// Instruction decode+dispatch.
+|.macro ins_NEXT2
+|  decode_OP4a TMP1, INS
+|  decode_OP4b TMP1
+|  addu TMP0, DISPATCH, TMP1
+|   decode_RD8a RD, INS
+|  lw AT, 0(TMP0)
+|   decode_RA8a RA, INS
+|   decode_RD8b RD
+|  jr AT
+|   decode_RA8b RA
+|.endmacro
+|.macro ins_NEXT
+|  ins_NEXT1
+|  ins_NEXT2
+|.endmacro
+|
+|// Instruction footer.
+|.if 1
+|  // Replicated dispatch. Less unpredictable branches, but higher I-Cache use.
+|  .define ins_next, ins_NEXT
+|  .define ins_next_, ins_NEXT
+|  .define ins_next1, ins_NEXT1
+|  .define ins_next2, ins_NEXT2
+|.else
+|  // Common dispatch. Lower I-Cache use, only one (very) unpredictable branch.
+|  // Affects only certain kinds of benchmarks (and only with -j off).
+|  .macro ins_next
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next1
+|  .endmacro
+|  .macro ins_next2
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next_
+|  ->ins_next:
+|    ins_NEXT
+|  .endmacro
+|.endif
+|
+|// Call decode and dispatch.
+|.macro ins_callt
+|  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+|  lw PC, LFUNC:RB->pc
+|  lw INS, 0(PC)
+|   addiu PC, PC, 4
+|  decode_OP4a TMP1, INS
+|   decode_RA8a RA, INS
+|  decode_OP4b TMP1
+|   decode_RA8b RA
+|  addu TMP0, DISPATCH, TMP1
+|  lw TMP0, 0(TMP0)
+|  jr TMP0
+|   addu RA, RA, BASE
+|.endmacro
+|
+|.macro ins_call
+|  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, PC = caller PC
+|  sw PC, FRAME_PC(BASE)
+|  ins_callt
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|.macro branch_RD
+|  srl TMP0, RD, 1
+|  lui AT, (-(BCBIAS_J*4 >> 16) & 65535)
+|  addu TMP0, TMP0, AT
+|  addu PC, PC, TMP0
+|.endmacro
+|
+|// Assumes DISPATCH is relative to GL.
+#define DISPATCH_GL(field)	(GG_DISP2G + (int)offsetof(global_State, field))
+#define DISPATCH_J(field)	(GG_DISP2J + (int)offsetof(jit_State, field))
+#define GG_DISP2GOT		(GG_OFS(got) - GG_OFS(dispatch))
+#define DISPATCH_GOT(name)	(GG_DISP2GOT + 4*LJ_GOT_##name)
+|
+#define PC2PROTO(field)  ((int)offsetof(GCproto, field)-(int)sizeof(GCproto))
+|
+|.macro load_got, func
+|  lw CFUNCADDR, DISPATCH_GOT(func)(DISPATCH)
+|.endmacro
+|// Much faster. Sadly, there's no easy way to force the required code layout.
+|// .macro call_intern, func; bal extern func; .endmacro
+|.macro call_intern, func; jalr CFUNCADDR; .endmacro
+|.macro call_extern; jalr CFUNCADDR; .endmacro
+|.macro jmp_extern; jr CFUNCADDR; .endmacro
+|
+|.macro hotcheck, delta, target
+|  srl TMP1, PC, 1
+|  andi TMP1, TMP1, 126
+|  addu TMP1, TMP1, DISPATCH
+|  lhu TMP2, GG_DISP2HOT(TMP1)
+|  addiu TMP2, TMP2, -delta
+|  bltz TMP2, target
+|.  sh TMP2, GG_DISP2HOT(TMP1)
+|.endmacro
+|
+|.macro hotloop
+|  hotcheck HOTCOUNT_LOOP, ->vm_hotloop
+|.endmacro
+|
+|.macro hotcall
+|  hotcheck HOTCOUNT_CALL, ->vm_hotcall
+|.endmacro
+|
+|// Set current VM state. Uses TMP0.
+|.macro li_vmstate, st; li TMP0, ~LJ_VMST_..st; .endmacro
+|.macro st_vmstate; sw TMP0, DISPATCH_GL(vmstate)(DISPATCH); .endmacro
+|
+|// Move table write barrier back. Overwrites mark and tmp.
+|.macro barrierback, tab, mark, tmp, target
+|  lw tmp, DISPATCH_GL(gc.grayagain)(DISPATCH)
+|   andi mark, mark, ~LJ_GC_BLACK & 255		// black2gray(tab)
+|  sw tab, DISPATCH_GL(gc.grayagain)(DISPATCH)
+|   sb mark, tab->marked
+|  b target
+|.  sw tmp, tab->gclist
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+
+/* Generate subroutines used by opcodes and other parts of the VM. */
+/* The .code_sub section should be last to help static branch prediction. */
+static void build_subroutines(BuildCtx *ctx)
+{
+  |.code_sub
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Return handling ----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_returnp:
+  |  // See vm_return. Also: TMP2 = previous base.
+  |  andi AT, PC, FRAME_P
+  |  beqz AT, ->cont_dispatch
+  |.  li TMP1, LJ_TTRUE
+  |
+  |  // Return from pcall or xpcall fast func.
+  |  lw PC, FRAME_PC(TMP2)		// Fetch PC of previous frame.
+  |  move BASE, TMP2			// Restore caller base.
+  |  // Prepending may overwrite the pcall frame, so do it at the end.
+  |   sw TMP1, FRAME_PC(RA)		// Prepend true to results.
+  |   addiu RA, RA, -8
+  |
+  |->vm_returnc:
+  |   addiu RD, RD, 8			// RD = (nresults+1)*8.
+  |  andi TMP0, PC, FRAME_TYPE
+  |   beqz RD, ->vm_unwind_c_eh
+  |.   li CRET1, LUA_YIELD
+  |  beqz TMP0, ->BC_RET_Z		// Handle regular return to Lua.
+  |.  move MULTRES, RD
+  |
+  |->vm_return:
+  |  // BASE = base, RA = resultptr, RD/MULTRES = (nresults+1)*8, PC = return
+  |  // TMP0 = PC & FRAME_TYPE
+  |   li TMP2, -8
+  |  xori AT, TMP0, FRAME_C
+  |   and TMP2, PC, TMP2
+  |  bnez AT, ->vm_returnp
+  |.  subu TMP2, BASE, TMP2		// TMP2 = previous base.
+  |
+  |  addiu TMP1, RD, -8
+  |   sw TMP2, L->base
+  |    li_vmstate C
+  |   lw TMP2, SAVE_NRES
+  |   addiu BASE, BASE, -8
+  |    st_vmstate
+  |  beqz TMP1, >2
+  |.   sll TMP2, TMP2, 3
+  |1:
+  |  addiu TMP1, TMP1, -8
+  |   lw SFRETHI, HI(RA)
+  |    lw SFRETLO, LO(RA)
+  |    addiu RA, RA, 8
+  |   sw SFRETHI, HI(BASE)
+  |    sw SFRETLO, LO(BASE)
+  |  bnez TMP1, <1
+  |.  addiu BASE, BASE, 8
+  |
+  |2:
+  |  bne TMP2, RD, >6
+  |3:
+  |.  sw BASE, L->top			// Store new top.
+  |
+  |->vm_leave_cp:
+  |  lw TMP0, SAVE_CFRAME		// Restore previous C frame.
+  |   move CRET1, r0			// Ok return status for vm_pcall.
+  |  sw TMP0, L->cframe
+  |
+  |->vm_leave_unw:
+  |  restoreregs_ret
+  |
+  |6:
+  |  lw TMP1, L->maxstack
+  |  slt AT, TMP2, RD
+  |  bnez AT, >7			// Less results wanted?
+  |  // More results wanted. Check stack size and fill up results with nil.
+  |.  slt AT, BASE, TMP1
+  |  beqz AT, >8
+  |.  nop
+  |  sw TISNIL, HI(BASE)
+  |  addiu RD, RD, 8
+  |  b <2
+  |.  addiu BASE, BASE, 8
+  |
+  |7:  // Less results wanted.
+  |  subu TMP0, RD, TMP2
+  |  subu TMP0, BASE, TMP0		// Either keep top or shrink it.
+  |  b <3
+  |.  movn BASE, TMP0, TMP2		// LUA_MULTRET+1 case?
+  |
+  |8:  // Corner case: need to grow stack for filling up results.
+  |  // This can happen if:
+  |  // - A C function grows the stack (a lot).
+  |  // - The GC shrinks the stack in between.
+  |  // - A return back from a lua_call() with (high) nresults adjustment.
+  |  load_got lj_state_growstack
+  |   move MULTRES, RD
+  |  srl CARG2, TMP2, 3
+  |  call_intern lj_state_growstack	// (lua_State *L, int n)
+  |.  move CARG1, L
+  |    lw TMP2, SAVE_NRES
+  |  lw BASE, L->top			// Need the (realloced) L->top in BASE.
+  |   move RD, MULTRES
+  |  b <2
+  |.   sll TMP2, TMP2, 3
+  |
+  |->vm_unwind_c:			// Unwind C stack, return from vm_pcall.
+  |  // (void *cframe, int errcode)
+  |  move sp, CARG1
+  |  move CRET1, CARG2
+  |->vm_unwind_c_eh:			// Landing pad for external unwinder.
+  |  lw L, SAVE_L
+  |   li TMP0, ~LJ_VMST_C
+  |  lw GL:TMP1, L->glref
+  |  b ->vm_leave_unw
+  |.  sw TMP0, GL:TMP1->vmstate
+  |
+  |->vm_unwind_ff:			// Unwind C stack, return from ff pcall.
+  |  // (void *cframe)
+  |  li AT, -4
+  |  and sp, CARG1, AT
+  |->vm_unwind_ff_eh:			// Landing pad for external unwinder.
+  |  lw L, SAVE_L
+  |     .FPU lui TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |     li TISNUM, LJ_TISNUM		// Setup type comparison constants.
+  |     li TISNIL, LJ_TNIL
+  |  lw BASE, L->base
+  |   lw DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |     .FPU mtc1 TMP3, TOBIT
+  |  li TMP1, LJ_TFALSE
+  |    li_vmstate INTERP
+  |  lw PC, FRAME_PC(BASE)		// Fetch PC of previous frame.
+  |     .FPU cvt.d.s TOBIT, TOBIT
+  |  addiu RA, BASE, -8			// Results start at BASE-8.
+  |   addiu DISPATCH, DISPATCH, GG_G2DISP
+  |  sw TMP1, HI(RA)			// Prepend false to error message.
+  |    st_vmstate
+  |  b ->vm_returnc
+  |.  li RD, 16				// 2 results: false + error message.
+  |
+  |->vm_unwind_stub:			// Jump to exit stub from unwinder.
+  |  jr CARG1
+  |.  move ra, CARG2
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Grow stack for calls -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_growstack_c:			// Grow stack for C function.
+  |  b >2
+  |.  li CARG2, LUA_MINSTACK
+  |
+  |->vm_growstack_l:			// Grow stack for Lua function.
+  |  // BASE = new base, RA = BASE+framesize*8, RC = nargs*8, PC = first PC
+  |  addu RC, BASE, RC
+  |   subu RA, RA, BASE
+  |  sw BASE, L->base
+  |   addiu PC, PC, 4			// Must point after first instruction.
+  |  sw RC, L->top
+  |   srl CARG2, RA, 3
+  |2:
+  |  // L->base = new base, L->top = top
+  |  load_got lj_state_growstack
+  |   sw PC, SAVE_PC
+  |  call_intern lj_state_growstack	// (lua_State *L, int n)
+  |.  move CARG1, L
+  |  lw BASE, L->base
+  |  lw RC, L->top
+  |  lw LFUNC:RB, FRAME_FUNC(BASE)
+  |  subu RC, RC, BASE
+  |  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+  |  ins_callt				// Just retry the call.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Entry points into the assembler VM ---------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_resume:				// Setup C frame and resume thread.
+  |  // (lua_State *L, TValue *base, int nres1 = 0, ptrdiff_t ef = 0)
+  |  saveregs
+  |  move L, CARG1
+  |    lw DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |  move BASE, CARG2
+  |    lbu TMP1, L->status
+  |   sw L, SAVE_L
+  |  li PC, FRAME_CP
+  |  addiu TMP0, sp, CFRAME_RESUME
+  |    addiu DISPATCH, DISPATCH, GG_G2DISP
+  |   sw r0, SAVE_NRES
+  |   sw r0, SAVE_ERRF
+  |   sw CARG1, SAVE_PC		// Any value outside of bytecode is ok.
+  |   sw r0, SAVE_CFRAME
+  |    beqz TMP1, >3
+  |. sw TMP0, L->cframe
+  |
+  |  // Resume after yield (like a return).
+  |  sw L, DISPATCH_GL(cur_L)(DISPATCH)
+  |  move RA, BASE
+  |   lw BASE, L->base
+  |     li TISNUM, LJ_TISNUM		// Setup type comparison constants.
+  |   lw TMP1, L->top
+  |  lw PC, FRAME_PC(BASE)
+  |     .FPU  lui TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |   subu RD, TMP1, BASE
+  |     .FPU  mtc1 TMP3, TOBIT
+  |    sb r0, L->status
+  |     .FPU  cvt.d.s TOBIT, TOBIT
+  |    li_vmstate INTERP
+  |   addiu RD, RD, 8
+  |    st_vmstate
+  |   move MULTRES, RD
+  |  andi TMP0, PC, FRAME_TYPE
+  |  beqz TMP0, ->BC_RET_Z
+  |.    li TISNIL, LJ_TNIL
+  |  b ->vm_return
+  |.  nop
+  |
+  |->vm_pcall:				// Setup protected C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1, ptrdiff_t ef)
+  |  saveregs
+  |  sw CARG4, SAVE_ERRF
+  |  b >1
+  |.  li PC, FRAME_CP
+  |
+  |->vm_call:				// Setup C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1)
+  |  saveregs
+  |  li PC, FRAME_C
+  |
+  |1:  // Entry point for vm_pcall above (PC = ftype).
+  |  lw TMP1, L:CARG1->cframe
+  |    move L, CARG1
+  |   sw CARG3, SAVE_NRES
+  |    lw DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |   sw CARG1, SAVE_L
+  |     move BASE, CARG2
+  |    addiu DISPATCH, DISPATCH, GG_G2DISP
+  |   sw CARG1, SAVE_PC		// Any value outside of bytecode is ok.
+  |  sw TMP1, SAVE_CFRAME
+  |  sw sp, L->cframe			// Add our C frame to cframe chain.
+  |
+  |3:  // Entry point for vm_cpcall/vm_resume (BASE = base, PC = ftype).
+  |  sw L, DISPATCH_GL(cur_L)(DISPATCH)
+  |  lw TMP2, L->base			// TMP2 = old base (used in vmeta_call).
+  |     li TISNUM, LJ_TISNUM		// Setup type comparison constants.
+  |     .FPU lui TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |   lw TMP1, L->top
+  |     .FPU mtc1 TMP3, TOBIT
+  |  addu PC, PC, BASE
+  |   subu NARGS8:RC, TMP1, BASE
+  |  subu PC, PC, TMP2			// PC = frame delta + frame type
+  |     .FPU cvt.d.s TOBIT, TOBIT
+  |    li_vmstate INTERP
+  |     li TISNIL, LJ_TNIL
+  |    st_vmstate
+  |
+  |->vm_call_dispatch:
+  |  // TMP2 = old base, BASE = new base, RC = nargs*8, PC = caller PC
+  |  lw TMP0, FRAME_PC(BASE)
+  |  li AT, LJ_TFUNC
+  |  bne TMP0, AT, ->vmeta_call
+  |.  lw LFUNC:RB, FRAME_FUNC(BASE)
+  |
+  |->vm_call_dispatch_f:
+  |  ins_call
+  |  // BASE = new base, RB = func, RC = nargs*8, PC = caller PC
+  |
+  |->vm_cpcall:				// Setup protected C frame, call C.
+  |  // (lua_State *L, lua_CFunction func, void *ud, lua_CPFunction cp)
+  |  saveregs
+  |  move L, CARG1
+  |   lw TMP0, L:CARG1->stack
+  |  sw CARG1, SAVE_L
+  |   lw TMP1, L->top
+  |     lw DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |  sw CARG1, SAVE_PC			// Any value outside of bytecode is ok.
+  |   subu TMP0, TMP0, TMP1		// Compute -savestack(L, L->top).
+  |    lw TMP1, L->cframe
+  |     addiu DISPATCH, DISPATCH, GG_G2DISP
+  |   sw TMP0, SAVE_NRES		// Neg. delta means cframe w/o frame.
+  |  sw r0, SAVE_ERRF			// No error function.
+  |    sw TMP1, SAVE_CFRAME
+  |    sw sp, L->cframe			// Add our C frame to cframe chain.
+  |     sw L, DISPATCH_GL(cur_L)(DISPATCH)
+  |  jalr CARG4			// (lua_State *L, lua_CFunction func, void *ud)
+  |.  move CFUNCADDR, CARG4
+  |  move BASE, CRET1
+  |  bnez CRET1, <3			// Else continue with the call.
+  |.  li PC, FRAME_CP
+  |  b ->vm_leave_cp			// No base? Just remove C frame.
+  |.  nop
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Metamethod handling ------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// The lj_meta_* functions (except for lj_meta_cat) don't reallocate the
+  |// stack, so BASE doesn't need to be reloaded across these calls.
+  |
+  |//-- Continuation dispatch ----------------------------------------------
+  |
+  |->cont_dispatch:
+  |  // BASE = meta base, RA = resultptr, RD = (nresults+1)*8
+  |  lw TMP0, -16+LO(BASE)		// Continuation.
+  |   move RB, BASE
+  |   move BASE, TMP2			// Restore caller BASE.
+  |    lw LFUNC:TMP1, FRAME_FUNC(TMP2)
+  |.if FFI
+  |  sltiu AT, TMP0, 2
+  |.endif
+  |     lw PC, -16+HI(RB)		// Restore PC from [cont|PC].
+  |   addu TMP2, RA, RD
+  |.if FFI
+  |  bnez AT, >1
+  |.endif
+  |.  sw TISNIL, -8+HI(TMP2)		// Ensure one valid arg.
+  |    lw TMP1, LFUNC:TMP1->pc
+  |  // BASE = base, RA = resultptr, RB = meta base
+  |  jr TMP0				// Jump to continuation.
+  |.  lw KBASE, PC2PROTO(k)(TMP1)
+  |
+  |.if FFI
+  |1:
+  |  bnez TMP0, ->cont_ffi_callback	// cont = 1: return from FFI callback.
+  |  // cont = 0: tailcall from C function.
+  |.  addiu TMP1, RB, -16
+  |  b ->vm_call_tail
+  |.  subu RC, TMP1, BASE
+  |.endif
+  |
+  |->cont_cat:				// RA = resultptr, RB = meta base
+  |  lw INS, -4(PC)
+  |   addiu CARG2, RB, -16
+  |  lw SFRETHI, HI(RA)
+  |    lw SFRETLO, LO(RA)
+  |  decode_RB8a MULTRES, INS
+  |   decode_RA8a RA, INS
+  |  decode_RB8b MULTRES
+  |   decode_RA8b RA
+  |  addu TMP1, BASE, MULTRES
+  |   sw BASE, L->base
+  |   subu CARG3, CARG2, TMP1
+  |  sw SFRETHI, HI(CARG2)
+  |  bne TMP1, CARG2, ->BC_CAT_Z
+  |.  sw SFRETLO, LO(CARG2)
+  |  addu RA, BASE, RA
+  |  sw SFRETHI, HI(RA)
+  |  b ->cont_nop
+  |.  sw SFRETLO, LO(RA)
+  |
+  |//-- Table indexing metamethods -----------------------------------------
+  |
+  |->vmeta_tgets1:
+  |  addiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+  |  li TMP0, LJ_TSTR
+  |  sw STR:RC, LO(CARG3)
+  |  b >1
+  |.  sw TMP0, HI(CARG3)
+  |
+  |->vmeta_tgets:
+  |  addiu CARG2, DISPATCH, DISPATCH_GL(tmptv)
+  |  li TMP0, LJ_TTAB
+  |  sw TAB:RB, LO(CARG2)
+  |   addiu CARG3, DISPATCH, DISPATCH_GL(tmptv2)
+  |  sw TMP0, HI(CARG2)
+  |   li TMP1, LJ_TSTR
+  |   sw STR:RC, LO(CARG3)
+  |  b >1
+  |.  sw TMP1, HI(CARG3)
+  |
+  |->vmeta_tgetb:			// TMP0 = index
+  |  addiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+  |  sw TMP0, LO(CARG3)
+  |  sw TISNUM, HI(CARG3)
+  |
+  |->vmeta_tgetv:
+  |1:
+  |  load_got lj_meta_tget
+  |  sw BASE, L->base
+  |  sw PC, SAVE_PC
+  |  call_intern lj_meta_tget		// (lua_State *L, TValue *o, TValue *k)
+  |.  move CARG1, L
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  beqz CRET1, >3
+  |.  addiu TMP1, BASE, -FRAME_CONT
+  |  lw SFARG1HI, HI(CRET1)
+  |   lw SFARG2HI, LO(CRET1)
+  |  ins_next1
+  |  sw SFARG1HI, HI(RA)
+  |   sw SFARG2HI, LO(RA)
+  |  ins_next2
+  |
+  |3:  // Call __index metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k
+  |  lw BASE, L->top
+  |  sw PC, -16+HI(BASE)		// [cont|PC]
+  |   subu PC, BASE, TMP1
+  |  lw LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |  b ->vm_call_dispatch_f
+  |.  li NARGS8:RC, 16			// 2 args for func(t, k).
+  |
+  |->vmeta_tgetr:
+  |  load_got lj_tab_getinth
+  |  call_intern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |.  nop
+  |  // Returns cTValue * or NULL.
+  |  beqz CRET1, ->BC_TGETR_Z
+  |.  move SFARG2HI, TISNIL
+  |  lw SFARG2HI, HI(CRET1)
+  |  b ->BC_TGETR_Z
+  |.  lw SFARG2LO, LO(CRET1)
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->vmeta_tsets1:
+  |  addiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+  |  li TMP0, LJ_TSTR
+  |  sw STR:RC, LO(CARG3)
+  |  b >1
+  |.  sw TMP0, HI(CARG3)
+  |
+  |->vmeta_tsets:
+  |  addiu CARG2, DISPATCH, DISPATCH_GL(tmptv)
+  |  li TMP0, LJ_TTAB
+  |  sw TAB:RB, LO(CARG2)
+  |   addiu CARG3, DISPATCH, DISPATCH_GL(tmptv2)
+  |  sw TMP0, HI(CARG2)
+  |   li TMP1, LJ_TSTR
+  |   sw STR:RC, LO(CARG3)
+  |  b >1
+  |.  sw TMP1, HI(CARG3)
+  |
+  |->vmeta_tsetb:			// TMP0 = index
+  |  addiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+  |  sw TMP0, LO(CARG3)
+  |  sw TISNUM, HI(CARG3)
+  |
+  |->vmeta_tsetv:
+  |1:
+  |  load_got lj_meta_tset
+  |  sw BASE, L->base
+  |  sw PC, SAVE_PC
+  |  call_intern lj_meta_tset		// (lua_State *L, TValue *o, TValue *k)
+  |.  move CARG1, L
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  lw SFARG1HI, HI(RA)
+  |  beqz CRET1, >3
+  |.  lw SFARG1LO, LO(RA)
+  |  // NOBARRIER: lj_meta_tset ensures the table is not black.
+  |  ins_next1
+  |  sw SFARG1HI, HI(CRET1)
+  |   sw SFARG1LO, LO(CRET1)
+  |  ins_next2
+  |
+  |3:  // Call __newindex metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k/(v)
+  |  addiu TMP1, BASE, -FRAME_CONT
+  |  lw BASE, L->top
+  |  sw PC, -16+HI(BASE)		// [cont|PC]
+  |   subu PC, BASE, TMP1
+  |  lw LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |  sw SFARG1HI, 16+HI(BASE)		// Copy value to third argument.
+  |   sw SFARG1LO, 16+LO(BASE)
+  |  b ->vm_call_dispatch_f
+  |.  li NARGS8:RC, 24			// 3 args for func(t, k, v)
+  |
+  |->vmeta_tsetr:
+  |  load_got lj_tab_setinth
+  |  sw BASE, L->base
+  |  sw PC, SAVE_PC
+  |  call_intern lj_tab_setinth  // (lua_State *L, GCtab *t, int32_t key)
+  |.  move CARG1, L
+  |  // Returns TValue *.
+  |  b ->BC_TSETR_Z
+  |.  nop
+  |
+  |//-- Comparison metamethods ---------------------------------------------
+  |
+  |->vmeta_comp:
+  |  // RA/RD point to o1/o2.
+  |  move CARG2, RA
+  |  move CARG3, RD
+  |  load_got lj_meta_comp
+  |  addiu PC, PC, -4
+  |  sw BASE, L->base
+  |  sw PC, SAVE_PC
+  |  decode_OP1 CARG4, INS
+  |  call_intern lj_meta_comp	// (lua_State *L, TValue *o1, *o2, int op)
+  |.  move CARG1, L
+  |  // Returns 0/1 or TValue * (metamethod).
+  |3:
+  |  sltiu AT, CRET1, 2
+  |  beqz AT, ->vmeta_binop
+  |   negu TMP2, CRET1
+  |4:
+  |  lhu RD, OFS_RD(PC)
+  |   addiu PC, PC, 4
+  |   lui TMP1, (-(BCBIAS_J*4 >> 16) & 65535)
+  |  sll RD, RD, 2
+  |  addu RD, RD, TMP1
+  |  and RD, RD, TMP2
+  |  addu PC, PC, RD
+  |->cont_nop:
+  |  ins_next
+  |
+  |->cont_ra:				// RA = resultptr
+  |  lbu TMP1, -4+OFS_RA(PC)
+  |   lw SFRETHI, HI(RA)
+  |    lw SFRETLO, LO(RA)
+  |  sll TMP1, TMP1, 3
+  |  addu TMP1, BASE, TMP1
+  |   sw SFRETHI, HI(TMP1)
+  |  b ->cont_nop
+  |.   sw SFRETLO, LO(TMP1)
+  |
+  |->cont_condt:			// RA = resultptr
+  |  lw TMP0, HI(RA)
+  |  sltiu AT, TMP0, LJ_TISTRUECOND
+  |  b <4
+  |.  negu TMP2, AT			// Branch if result is true.
+  |
+  |->cont_condf:			// RA = resultptr
+  |  lw TMP0, HI(RA)
+  |  sltiu AT, TMP0, LJ_TISTRUECOND
+  |  b <4
+  |.  addiu TMP2, AT, -1		// Branch if result is false.
+  |
+  |->vmeta_equal:
+  |  // SFARG1LO/SFARG2LO point to o1/o2. TMP0 is set to 0/1.
+  |  load_got lj_meta_equal
+  |   move CARG2, SFARG1LO
+  |   move CARG3, SFARG2LO
+  |   move CARG4, TMP0
+  |  addiu PC, PC, -4
+  |   sw BASE, L->base
+  |   sw PC, SAVE_PC
+  |  call_intern lj_meta_equal  // (lua_State *L, GCobj *o1, *o2, int ne)
+  |.  move CARG1, L
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |.  nop
+  |
+  |->vmeta_equal_cd:
+  |.if FFI
+  |  load_got lj_meta_equal_cd
+  |  move CARG2, INS
+  |  addiu PC, PC, -4
+  |   sw BASE, L->base
+  |   sw PC, SAVE_PC
+  |  call_intern lj_meta_equal_cd	// (lua_State *L, BCIns op)
+  |.  move CARG1, L
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |.  nop
+  |.endif
+  |
+  |->vmeta_istype:
+  |  load_got lj_meta_istype
+  |  addiu PC, PC, -4
+  |   sw BASE, L->base
+  |   srl CARG2, RA, 3
+  |   srl CARG3, RD, 3
+  |  sw PC, SAVE_PC
+  |  call_intern lj_meta_istype  // (lua_State *L, BCReg ra, BCReg tp)
+  |.  move CARG1, L
+  |  b ->cont_nop
+  |.  nop
+  |
+  |//-- Arithmetic metamethods ---------------------------------------------
+  |
+  |->vmeta_unm:
+  |  move RC, RB
+  |
+  |->vmeta_arith:
+  |  load_got lj_meta_arith
+  |  decode_OP1 TMP0, INS
+  |   sw BASE, L->base
+  |  move CARG2, RA
+  |   sw PC, SAVE_PC
+  |  move CARG3, RB
+  |  move CARG4, RC
+  |  sw TMP0, ARG5
+  |  call_intern lj_meta_arith  // (lua_State *L, TValue *ra,*rb,*rc, BCReg op)
+  |.  move CARG1, L
+  |  // Returns NULL (finished) or TValue * (metamethod).
+  |  beqz CRET1, ->cont_nop
+  |.  nop
+  |
+  |  // Call metamethod for binary op.
+  |->vmeta_binop:
+  |  // BASE = old base, CRET1 = new base, stack = cont/func/o1/o2
+  |  subu TMP1, CRET1, BASE
+  |   sw PC, -16+HI(CRET1)		// [cont|PC]
+  |   move TMP2, BASE
+  |  addiu PC, TMP1, FRAME_CONT
+  |   move BASE, CRET1
+  |  b ->vm_call_dispatch
+  |.  li NARGS8:RC, 16			// 2 args for func(o1, o2).
+  |
+  |->vmeta_len:
+  |  // CARG2 already set by BC_LEN.
+#if LJ_52
+  |  move MULTRES, CARG1
+#endif
+  |  load_got lj_meta_len
+  |   sw BASE, L->base
+  |   sw PC, SAVE_PC
+  |  call_intern lj_meta_len		// (lua_State *L, TValue *o)
+  |.  move CARG1, L
+  |  // Returns NULL (retry) or TValue * (metamethod base).
+#if LJ_52
+  |  bnez CRET1, ->vmeta_binop		// Binop call for compatibility.
+  |.  nop
+  |  b ->BC_LEN_Z
+  |.  move CARG1, MULTRES
+#else
+  |  b ->vmeta_binop			// Binop call for compatibility.
+  |.  nop
+#endif
+  |
+  |//-- Call metamethod ----------------------------------------------------
+  |
+  |->vmeta_call:			// Resolve and call __call metamethod.
+  |  // TMP2 = old base, BASE = new base, RC = nargs*8
+  |  load_got lj_meta_call
+  |   sw TMP2, L->base			// This is the callers base!
+  |  addiu CARG2, BASE, -8
+  |   sw PC, SAVE_PC
+  |  addu CARG3, BASE, RC
+  |   move MULTRES, NARGS8:RC
+  |  call_intern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |.  move CARG1, L
+  |  lw LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |   addiu NARGS8:RC, MULTRES, 8	// Got one more argument now.
+  |  ins_call
+  |
+  |->vmeta_callt:			// Resolve __call for BC_CALLT.
+  |  // BASE = old base, RA = new base, RC = nargs*8
+  |  load_got lj_meta_call
+  |   sw BASE, L->base
+  |  addiu CARG2, RA, -8
+  |   sw PC, SAVE_PC
+  |  addu CARG3, RA, RC
+  |   move MULTRES, NARGS8:RC
+  |  call_intern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |.  move CARG1, L
+  |  lw TMP1, FRAME_PC(BASE)
+  |   lw LFUNC:RB, FRAME_FUNC(RA)	// Guaranteed to be a function here.
+  |  b ->BC_CALLT_Z
+  |.  addiu NARGS8:RC, MULTRES, 8	// Got one more argument now.
+  |
+  |//-- Argument coercion for 'for' statement ------------------------------
+  |
+  |->vmeta_for:
+  |  load_got lj_meta_for
+  |   sw BASE, L->base
+  |  move CARG2, RA
+  |   sw PC, SAVE_PC
+  |  move MULTRES, INS
+  |  call_intern lj_meta_for	// (lua_State *L, TValue *base)
+  |.  move CARG1, L
+  |.if JIT
+  |  decode_OP1 TMP0, MULTRES
+  |  li AT, BC_JFORI
+  |.endif
+  |  decode_RA8a RA, MULTRES
+  |   decode_RD8a RD, MULTRES
+  |  decode_RA8b RA
+  |.if JIT
+  |  beq TMP0, AT, =>BC_JFORI
+  |.  decode_RD8b RD
+  |  b =>BC_FORI
+  |.  nop
+  |.else
+  |  b =>BC_FORI
+  |.  decode_RD8b RD
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Fast functions -----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro .ffunc, name
+  |->ff_ .. name:
+  |.endmacro
+  |
+  |.macro .ffunc_1, name
+  |->ff_ .. name:
+  |  lw SFARG1HI, HI(BASE)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  lw SFARG1LO, LO(BASE)
+  |.endmacro
+  |
+  |.macro .ffunc_2, name
+  |->ff_ .. name:
+  |  sltiu AT, NARGS8:RC, 16
+  |   lw SFARG1HI, HI(BASE)
+  |  bnez AT, ->fff_fallback
+  |.   lw SFARG2HI, 8+HI(BASE)
+  |   lw SFARG1LO, LO(BASE)
+  |    lw SFARG2LO, 8+LO(BASE)
+  |.endmacro
+  |
+  |.macro .ffunc_n, name	// Caveat: has delay slot!
+  |->ff_ .. name:
+  |  lw SFARG1HI, HI(BASE)
+  |.if FPU
+  |   ldc1 FARG1, 0(BASE)
+  |.else
+  |   lw SFARG1LO, LO(BASE)
+  |.endif
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  sltiu AT, SFARG1HI, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_nn, name	// Caveat: has delay slot!
+  |->ff_ .. name:
+  |  sltiu AT, NARGS8:RC, 16
+  |   lw SFARG1HI, HI(BASE)
+  |  bnez AT, ->fff_fallback
+  |.  lw SFARG2HI, 8+HI(BASE)
+  |  sltiu TMP0, SFARG1HI, LJ_TISNUM
+  |.if FPU
+  |   ldc1 FARG1, 0(BASE)
+  |.else
+  |   lw SFARG1LO, LO(BASE)
+  |.endif
+  |  sltiu TMP1, SFARG2HI, LJ_TISNUM
+  |.if FPU
+  |   ldc1 FARG2, 8(BASE)
+  |.else
+  |   lw SFARG2LO, 8+LO(BASE)
+  |.endif
+  |  and TMP0, TMP0, TMP1
+  |  beqz TMP0, ->fff_fallback
+  |.endmacro
+  |
+  |// Inlined GC threshold check. Caveat: uses TMP0 and TMP1 and has delay slot!
+  |.macro ffgccheck
+  |  lw TMP0, DISPATCH_GL(gc.total)(DISPATCH)
+  |  lw TMP1, DISPATCH_GL(gc.threshold)(DISPATCH)
+  |  subu AT, TMP0, TMP1
+  |  bgezal AT, ->fff_gcstep
+  |.endmacro
+  |
+  |//-- Base library: checks -----------------------------------------------
+  |
+  |.ffunc_1 assert
+  |  sltiu AT, SFARG1HI, LJ_TISTRUECOND
+  |  beqz AT, ->fff_fallback
+  |.  addiu RA, BASE, -8
+  |  lw PC, FRAME_PC(BASE)
+  |  addiu RD, NARGS8:RC, 8		// Compute (nresults+1)*8.
+  |  addu TMP2, RA, NARGS8:RC
+  |   sw SFARG1HI, HI(RA)
+  |  addiu TMP1, BASE, 8
+  |  beq BASE, TMP2, ->fff_res		// Done if exactly 1 argument.
+  |.  sw SFARG1LO, LO(RA)
+  |1:
+  |  lw SFRETHI, HI(TMP1)
+  |   lw SFRETLO, LO(TMP1)
+  |  sw SFRETHI, -8+HI(TMP1)
+  |   sw SFRETLO, -8+LO(TMP1)
+  |  bne TMP1, TMP2, <1
+  |.  addiu TMP1, TMP1, 8
+  |  b ->fff_res
+  |.  nop
+  |
+  |.ffunc type
+  |  lw SFARG1HI, HI(BASE)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  sltiu TMP0, SFARG1HI, LJ_TISNUM
+  |  movn SFARG1HI, TISNUM, TMP0
+  |  not TMP1, SFARG1HI
+  |  sll TMP1, TMP1, 3
+  |  addu TMP1, CFUNC:RB, TMP1
+  |  lw SFARG1HI, CFUNC:TMP1->upvalue[0].u32.hi
+  |  b ->fff_restv
+  |.  lw SFARG1LO, CFUNC:TMP1->upvalue[0].u32.lo
+  |
+  |//-- Base library: getters and setters ---------------------------------
+  |
+  |.ffunc_1 getmetatable
+  |  li AT, LJ_TTAB
+  |  bne SFARG1HI, AT, >6
+  |.  li AT, LJ_TUDATA
+  |1:  // Field metatable must be at same offset for GCtab and GCudata!
+  |  lw TAB:SFARG1LO, TAB:SFARG1LO->metatable
+  |2:
+  |  lw STR:RC, DISPATCH_GL(gcroot[GCROOT_MMNAME+MM_metatable])(DISPATCH)
+  |  beqz TAB:SFARG1LO, ->fff_restv
+  |.  li SFARG1HI, LJ_TNIL
+  |  lw TMP0, TAB:SFARG1LO->hmask
+  |   li SFARG1HI, LJ_TTAB		// Use metatable as default result.
+  |  lw TMP1, STR:RC->sid
+  |  lw NODE:TMP2, TAB:SFARG1LO->node
+  |  and TMP1, TMP1, TMP0		// idx = str->sid & tab->hmask
+  |  sll TMP0, TMP1, 5
+  |  sll TMP1, TMP1, 3
+  |  subu TMP1, TMP0, TMP1
+  |  addu NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+  |  li AT, LJ_TSTR
+  |3:  // Rearranged logic, because we expect _not_ to find the key.
+  |  lw CARG4, offsetof(Node, key)+HI(NODE:TMP2)
+  |   lw TMP0, offsetof(Node, key)+LO(NODE:TMP2)
+  |    lw NODE:TMP3, NODE:TMP2->next
+  |  bne CARG4, AT, >4
+  |.    lw CARG3, offsetof(Node, val)+HI(NODE:TMP2)
+  |  beq TMP0, STR:RC, >5
+  |.    lw TMP1, offsetof(Node, val)+LO(NODE:TMP2)
+  |4:
+  |  beqz NODE:TMP3, ->fff_restv	// Not found, keep default result.
+  |.  move NODE:TMP2, NODE:TMP3
+  |  b <3
+  |.  nop
+  |5:
+  |  beq CARG3, TISNIL, ->fff_restv	// Ditto for nil value.
+  |.  nop
+  |  move SFARG1HI, CARG3		// Return value of mt.__metatable.
+  |  b ->fff_restv
+  |.  move SFARG1LO, TMP1
+  |
+  |6:
+  |  beq SFARG1HI, AT, <1
+  |.  sltu AT, TISNUM, SFARG1HI
+  |  movz SFARG1HI, TISNUM, AT
+  |  not TMP1, SFARG1HI
+  |  sll TMP1, TMP1, 2
+  |  addu TMP1, DISPATCH, TMP1
+  |  b <2
+  |.  lw TAB:SFARG1LO, DISPATCH_GL(gcroot[GCROOT_BASEMT])(TMP1)
+  |
+  |.ffunc_2 setmetatable
+  |  // Fast path: no mt for table yet and not clearing the mt.
+  |  li AT, LJ_TTAB
+  |  bne SFARG1HI, AT, ->fff_fallback
+  |.  addiu SFARG2HI, SFARG2HI, -LJ_TTAB
+  |  lw TAB:TMP1, TAB:SFARG1LO->metatable
+  |   lbu TMP3, TAB:SFARG1LO->marked
+  |  or AT, SFARG2HI, TAB:TMP1
+  |  bnez AT, ->fff_fallback
+  |.  andi AT, TMP3, LJ_GC_BLACK	// isblack(table)
+  |  beqz AT, ->fff_restv
+  |.  sw TAB:SFARG2LO, TAB:SFARG1LO->metatable
+  |  barrierback TAB:SFARG1LO, TMP3, TMP0, ->fff_restv
+  |
+  |.ffunc rawget
+  |  lw CARG4, HI(BASE)
+  |   sltiu AT, NARGS8:RC, 16
+  |    lw TAB:CARG2, LO(BASE)
+  |  load_got lj_tab_get
+  |  addiu CARG4, CARG4, -LJ_TTAB
+  |  or AT, AT, CARG4
+  |  bnez AT, ->fff_fallback
+  |   addiu CARG3, BASE, 8
+  |  call_intern lj_tab_get	// (lua_State *L, GCtab *t, cTValue *key)
+  |.  move CARG1, L
+  |  // Returns cTValue *.
+  |  lw SFARG1HI, HI(CRET1)
+  |  b ->fff_restv
+  |.  lw SFARG1LO, LO(CRET1)
+  |
+  |//-- Base library: conversions ------------------------------------------
+  |
+  |.ffunc tonumber
+  |  // Only handles the number case inline (without a base argument).
+  |  lw CARG1, HI(BASE)
+  |  xori AT, NARGS8:RC, 8		// Exactly one number argument.
+  |  sltu TMP0, TISNUM, CARG1
+  |  or AT, AT, TMP0
+  |  bnez AT, ->fff_fallback
+  |.  lw SFARG1HI, HI(BASE)
+  |  b ->fff_restv
+  |.  lw SFARG1LO, LO(BASE)
+  |
+  |.ffunc_1 tostring
+  |  // Only handles the string or number case inline.
+  |  li AT, LJ_TSTR
+  |  // A __tostring method in the string base metatable is ignored.
+  |  beq SFARG1HI, AT, ->fff_restv	// String key?
+  |  // Handle numbers inline, unless a number base metatable is present.
+  |.  lw TMP1, DISPATCH_GL(gcroot[GCROOT_BASEMT_NUM])(DISPATCH)
+  |  sltu TMP0, TISNUM, SFARG1HI
+  |  or TMP0, TMP0, TMP1
+  |  bnez TMP0, ->fff_fallback
+  |.  sw BASE, L->base			// Add frame since C call can throw.
+  |  ffgccheck
+  |.  sw PC, SAVE_PC			// Redundant (but a defined value).
+  |  load_got lj_strfmt_number
+  |  move CARG1, L
+  |  call_intern lj_strfmt_number	// (lua_State *L, cTValue *o)
+  |.  move CARG2, BASE
+  |  // Returns GCstr *.
+  |  li SFARG1HI, LJ_TSTR
+  |  b ->fff_restv
+  |.  move SFARG1LO, CRET1
+  |
+  |//-- Base library: iterators -------------------------------------------
+  |
+  |.ffunc next
+  |  lw CARG2, HI(BASE)
+  |   lw TAB:CARG1, LO(BASE)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  addu TMP2, BASE, NARGS8:RC
+  |  li AT, LJ_TTAB
+  |   sw TISNIL, HI(TMP2)		// Set missing 2nd arg to nil.
+  |  bne CARG2, AT, ->fff_fallback
+  |.  lw PC, FRAME_PC(BASE)
+  |  load_got lj_tab_next
+  |  addiu CARG2, BASE, 8
+  |  call_intern lj_tab_next		// (GCtab *t, cTValue *key, TValue *o)
+  |.  addiu CARG3, BASE, -8
+  |  // Returns 1=found, 0=end, -1=error.
+  |   addiu RA, BASE, -8
+  |  bgtz CRET1, ->fff_res		// Found key/value.
+  |.  li RD, (2+1)*8
+  |  beqz CRET1, ->fff_restv		// End of traversal: return nil.
+  |.  li SFARG1HI, LJ_TNIL
+  |   lw CFUNC:RB, FRAME_FUNC(BASE)
+  |  b ->fff_fallback			// Invalid key.
+  |.  li RC, 2*8
+  |
+  |.ffunc_1 pairs
+  |  li AT, LJ_TTAB
+  |  bne SFARG1HI, AT, ->fff_fallback
+  |.  lw PC, FRAME_PC(BASE)
+#if LJ_52
+  |  lw TAB:TMP2, TAB:SFARG1LO->metatable
+  |  lw TMP0, CFUNC:RB->upvalue[0].u32.hi
+  |   lw TMP1, CFUNC:RB->upvalue[0].u32.lo
+  |  bnez TAB:TMP2, ->fff_fallback
+#else
+  |  lw TMP0, CFUNC:RB->upvalue[0].u32.hi
+  |   lw TMP1, CFUNC:RB->upvalue[0].u32.lo
+#endif
+  |.  addiu RA, BASE, -8
+  |   sw TISNIL, 8+HI(BASE)
+  |  sw TMP0, HI(RA)
+  |   sw TMP1, LO(RA)
+  |  b ->fff_res
+  |.  li RD, (3+1)*8
+  |
+  |.ffunc ipairs_aux
+  |  sltiu AT, NARGS8:RC, 16
+  |   lw CARG3, HI(BASE)
+  |    lw TAB:CARG1, LO(BASE)
+  |   lw CARG4, 8+HI(BASE)
+  |  bnez AT, ->fff_fallback
+  |.  addiu CARG3, CARG3, -LJ_TTAB
+  |  xor CARG4, CARG4, TISNUM
+  |  and AT, CARG3, CARG4
+  |  bnez AT, ->fff_fallback
+  |.  lw PC, FRAME_PC(BASE)
+  |  lw TMP2, 8+LO(BASE)
+  |   lw TMP0, TAB:CARG1->asize
+  |   lw TMP1, TAB:CARG1->array
+  |  addiu TMP2, TMP2, 1
+  |  sw TISNUM, -8+HI(BASE)
+  |  sltu AT, TMP2, TMP0
+  |   sw TMP2, -8+LO(BASE)
+  |  beqz AT, >2			// Not in array part?
+  |.  addiu RA, BASE, -8
+  |   sll TMP3, TMP2, 3
+  |   addu TMP3, TMP1, TMP3
+  |  lw TMP1, HI(TMP3)
+  |   lw TMP2, LO(TMP3)
+  |1:
+  |  beq TMP1, TISNIL, ->fff_res	// End of iteration, return 0 results.
+  |.  li RD, (0+1)*8
+  |  sw TMP1, 8+HI(RA)
+  |   sw TMP2, 8+LO(RA)
+  |  b ->fff_res
+  |.  li RD, (2+1)*8
+  |
+  |2:  // Check for empty hash part first. Otherwise call C function.
+  |  lw TMP0, TAB:CARG1->hmask
+  |  load_got lj_tab_getinth
+  |  beqz TMP0, ->fff_res
+  |.  li RD, (0+1)*8
+  |  call_intern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |.  move CARG2, TMP2
+  |  // Returns cTValue * or NULL.
+  |  beqz CRET1, ->fff_res
+  |.  li RD, (0+1)*8
+  |  lw TMP1, HI(CRET1)
+  |  b <1
+  |.  lw TMP2, LO(CRET1)
+  |
+  |.ffunc_1 ipairs
+  |  li AT, LJ_TTAB
+  |  bne SFARG1HI, AT, ->fff_fallback
+  |.  lw PC, FRAME_PC(BASE)
+#if LJ_52
+  |  lw TAB:TMP2, TAB:SFARG1LO->metatable
+  |  lw TMP0, CFUNC:RB->upvalue[0].u32.hi
+  |   lw TMP1, CFUNC:RB->upvalue[0].u32.lo
+  |  bnez TAB:TMP2, ->fff_fallback
+#else
+  |  lw TMP0, CFUNC:RB->upvalue[0].u32.hi
+  |   lw TMP1, CFUNC:RB->upvalue[0].u32.lo
+#endif
+  |.  addiu RA, BASE, -8
+  |   sw TISNUM, 8+HI(BASE)
+  |   sw r0, 8+LO(BASE)
+  |  sw TMP0, HI(RA)
+  |   sw TMP1, LO(RA)
+  |  b ->fff_res
+  |.  li RD, (3+1)*8
+  |
+  |//-- Base library: catch errors ----------------------------------------
+  |
+  |.ffunc pcall
+  |  lbu TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |   move TMP2, BASE
+  |   addiu BASE, BASE, 8
+  |  // Remember active hook before pcall.
+  |  srl TMP3, TMP3, HOOK_ACTIVE_SHIFT
+  |  andi TMP3, TMP3, 1
+  |  addiu PC, TMP3, 8+FRAME_PCALL
+  |  b ->vm_call_dispatch
+  |.  addiu NARGS8:RC, NARGS8:RC, -8
+  |
+  |.ffunc xpcall
+  |    sltiu AT, NARGS8:RC, 16
+  |  lw CARG4, 8+HI(BASE)
+  |    bnez AT, ->fff_fallback
+  |.  lw CARG3, 8+LO(BASE)
+  |   lw CARG1, LO(BASE)
+  |    lw CARG2, HI(BASE)
+  |    lbu TMP1, DISPATCH_GL(hookmask)(DISPATCH)
+  |  li AT, LJ_TFUNC
+  |   move TMP2, BASE
+  |  bne CARG4, AT, ->fff_fallback  // Traceback must be a function.
+  |   addiu BASE, BASE, 16
+  |  // Remember active hook before pcall.
+  |  srl TMP3, TMP3, HOOK_ACTIVE_SHIFT
+  |   sw CARG3, LO(TMP2)	// Swap function and traceback.
+  |   sw CARG4, HI(TMP2)
+  |  andi TMP3, TMP3, 1
+  |   sw CARG1, 8+LO(TMP2)
+  |    sw CARG2, 8+HI(TMP2)
+  |  addiu PC, TMP3, 16+FRAME_PCALL
+  |  b ->vm_call_dispatch
+  |.  addiu NARGS8:RC, NARGS8:RC, -16
+  |
+  |//-- Coroutine library --------------------------------------------------
+  |
+  |.macro coroutine_resume_wrap, resume
+  |.if resume
+  |.ffunc coroutine_resume
+  |  lw CARG3, HI(BASE)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  lw CARG1, LO(BASE)
+  |  li AT, LJ_TTHREAD
+  |  bne CARG3, AT, ->fff_fallback
+  |.else
+  |.ffunc coroutine_wrap_aux
+  |  lw L:CARG1, CFUNC:RB->upvalue[0].gcr
+  |.endif
+  |  lbu TMP0, L:CARG1->status
+  |   lw TMP1, L:CARG1->cframe
+  |    lw CARG2, L:CARG1->top
+  |    lw TMP2, L:CARG1->base
+  |  addiu TMP3, TMP0, -LUA_YIELD
+  |  bgtz TMP3, ->fff_fallback		// st > LUA_YIELD?
+  |.   xor TMP2, TMP2, CARG2
+  |  bnez TMP1, ->fff_fallback		// cframe != 0?
+  |.  or AT, TMP2, TMP0
+  |  lw TMP0, L:CARG1->maxstack
+  |  beqz AT, ->fff_fallback		// base == top && st == 0?
+  |.  lw PC, FRAME_PC(BASE)
+  |  addu TMP2, CARG2, NARGS8:RC
+  |  sltu AT, TMP0, TMP2
+  |  bnez AT, ->fff_fallback		// Stack overflow?
+  |.  sw PC, SAVE_PC
+  |   sw BASE, L->base
+  |1:
+  |.if resume
+  |  addiu BASE, BASE, 8		// Keep resumed thread in stack for GC.
+  |  addiu NARGS8:RC, NARGS8:RC, -8
+  |  addiu TMP2, TMP2, -8
+  |.endif
+  |  sw TMP2, L:CARG1->top
+  |  addu TMP1, BASE, NARGS8:RC
+  |  move CARG3, CARG2
+  |  sw BASE, L->top
+  |2:  // Move args to coroutine.
+  |   lw SFRETHI, HI(BASE)
+  |    lw SFRETLO, LO(BASE)
+  |  sltu AT, BASE, TMP1
+  |  beqz AT, >3
+  |.  addiu BASE, BASE, 8
+  |   sw SFRETHI, HI(CARG3)
+  |    sw SFRETLO, LO(CARG3)
+  |  b <2
+  |.  addiu CARG3, CARG3, 8
+  |3:
+  |  bal ->vm_resume			// (lua_State *L, TValue *base, 0, 0)
+  |.  move L:RA, L:CARG1
+  |  // Returns thread status.
+  |4:
+  |  lw TMP2, L:RA->base
+  |   sltiu AT, CRET1, LUA_YIELD+1
+  |  lw TMP3, L:RA->top
+  |    li_vmstate INTERP
+  |  lw BASE, L->base
+  |    sw L, DISPATCH_GL(cur_L)(DISPATCH)
+  |    st_vmstate
+  |   beqz AT, >8
+  |. subu RD, TMP3, TMP2
+  |   lw TMP0, L->maxstack
+  |  beqz RD, >6			// No results?
+  |.  addu TMP1, BASE, RD
+  |  sltu AT, TMP0, TMP1
+  |  bnez AT, >9			// Need to grow stack?
+  |.  addu TMP3, TMP2, RD
+  |  sw TMP2, L:RA->top			// Clear coroutine stack.
+  |  move TMP1, BASE
+  |5:  // Move results from coroutine.
+  |   lw SFRETHI, HI(TMP2)
+  |    lw SFRETLO, LO(TMP2)
+  |  addiu TMP2, TMP2, 8
+  |  sltu AT, TMP2, TMP3
+  |   sw SFRETHI, HI(TMP1)
+  |    sw SFRETLO, LO(TMP1)
+  |  bnez AT, <5
+  |.  addiu TMP1, TMP1, 8
+  |6:
+  |  andi TMP0, PC, FRAME_TYPE
+  |.if resume
+  |  li TMP1, LJ_TTRUE
+  |   addiu RA, BASE, -8
+  |  sw TMP1, -8+HI(BASE)		// Prepend true to results.
+  |  addiu RD, RD, 16
+  |.else
+  |  move RA, BASE
+  |  addiu RD, RD, 8
+  |.endif
+  |7:
+  |  sw PC, SAVE_PC
+  |  beqz TMP0, ->BC_RET_Z
+  |.  move MULTRES, RD
+  |  b ->vm_return
+  |.  nop
+  |
+  |8:  // Coroutine returned with error (at co->top-1).
+  |.if resume
+  |  addiu TMP3, TMP3, -8
+  |   li TMP1, LJ_TFALSE
+  |  lw SFRETHI, HI(TMP3)
+  |   lw SFRETLO, LO(TMP3)
+  |   sw TMP3, L:RA->top		// Remove error from coroutine stack.
+  |    li RD, (2+1)*8
+  |   sw TMP1, -8+HI(BASE)		// Prepend false to results.
+  |    addiu RA, BASE, -8
+  |  sw SFRETHI, HI(BASE)		// Copy error message.
+  |   sw SFRETLO, LO(BASE)
+  |  b <7
+  |.  andi TMP0, PC, FRAME_TYPE
+  |.else
+  |  load_got lj_ffh_coroutine_wrap_err
+  |  move CARG2, L:RA
+  |  call_intern lj_ffh_coroutine_wrap_err  // (lua_State *L, lua_State *co)
+  |.  move CARG1, L
+  |.endif
+  |
+  |9:  // Handle stack expansion on return from yield.
+  |  load_got lj_state_growstack
+  |  srl CARG2, RD, 3
+  |  call_intern lj_state_growstack	// (lua_State *L, int n)
+  |.  move CARG1, L
+  |  b <4
+  |.  li CRET1, 0
+  |.endmacro
+  |
+  |  coroutine_resume_wrap 1		// coroutine.resume
+  |  coroutine_resume_wrap 0		// coroutine.wrap
+  |
+  |.ffunc coroutine_yield
+  |  lw TMP0, L->cframe
+  |   addu TMP1, BASE, NARGS8:RC
+  |   sw BASE, L->base
+  |  andi TMP0, TMP0, CFRAME_RESUME
+  |   sw TMP1, L->top
+  |  beqz TMP0, ->fff_fallback
+  |.   li CRET1, LUA_YIELD
+  |  sw r0, L->cframe
+  |  b ->vm_leave_unw
+  |.   sb CRET1, L->status
+  |
+  |//-- Math library -------------------------------------------------------
+  |
+  |.ffunc_1 math_abs
+  |  bne SFARG1HI, TISNUM, >1
+  |.  sra TMP0, SFARG1LO, 31
+  |  xor TMP1, SFARG1LO, TMP0
+  |  subu SFARG1LO, TMP1, TMP0
+  |  bgez SFARG1LO, ->fff_restv
+  |.  nop
+  |  lui SFARG1HI, 0x41e0		// 2^31 as a double.
+  |  b ->fff_restv
+  |.  li SFARG1LO, 0
+  |1:
+  |  sltiu AT, SFARG1HI, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.  sll SFARG1HI, SFARG1HI, 1
+  |  srl SFARG1HI, SFARG1HI, 1
+  |// fallthrough
+  |
+  |->fff_restv:
+  |  // SFARG1LO/SFARG1HI = TValue result.
+  |  lw PC, FRAME_PC(BASE)
+  |   sw SFARG1HI, -8+HI(BASE)
+  |  addiu RA, BASE, -8
+  |   sw SFARG1LO, -8+LO(BASE)
+  |->fff_res1:
+  |  // RA = results, PC = return.
+  |  li RD, (1+1)*8
+  |->fff_res:
+  |  // RA = results, RD = (nresults+1)*8, PC = return.
+  |  andi TMP0, PC, FRAME_TYPE
+  |  bnez TMP0, ->vm_return
+  |.  move MULTRES, RD
+  |  lw INS, -4(PC)
+  |  decode_RB8a RB, INS
+  |  decode_RB8b RB
+  |5:
+  |  sltu AT, RD, RB
+  |  bnez AT, >6			// More results expected?
+  |.  decode_RA8a TMP0, INS
+  |  decode_RA8b TMP0
+  |  ins_next1
+  |  // Adjust BASE. KBASE is assumed to be set for the calling frame.
+  |   subu BASE, RA, TMP0
+  |  ins_next2
+  |
+  |6:  // Fill up results with nil.
+  |  addu TMP1, RA, RD
+  |   addiu RD, RD, 8
+  |  b <5
+  |.  sw TISNIL, -8+HI(TMP1)
+  |
+  |.macro math_extern, func
+  |  .ffunc math_ .. func
+  |  lw SFARG1HI, HI(BASE)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  load_got func
+  |  sltiu AT, SFARG1HI, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.if FPU
+  |.  ldc1 FARG1, 0(BASE)
+  |.else
+  |.  lw SFARG1LO, LO(BASE)
+  |.endif
+  |  call_extern
+  |.  nop
+  |  b ->fff_resn
+  |.  nop
+  |.endmacro
+  |
+  |.macro math_extern2, func
+  |  .ffunc_nn math_ .. func
+  |.  load_got func
+  |  call_extern
+  |.  nop
+  |  b ->fff_resn
+  |.  nop
+  |.endmacro
+  |
+  |// TODO: Return integer type if result is integer (own sf implementation).
+  |.macro math_round, func
+  |->ff_math_ .. func:
+  |  lw SFARG1HI, HI(BASE)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  lw SFARG1LO, LO(BASE)
+  |  beq SFARG1HI, TISNUM, ->fff_restv
+  |.  sltu AT, SFARG1HI, TISNUM
+  |  beqz AT, ->fff_fallback
+  |.if FPU
+  |.  ldc1 FARG1, 0(BASE)
+  |  bal ->vm_ .. func
+  |.else
+  |.  load_got func
+  |  call_extern
+  |.endif
+  |.  nop
+  |  b ->fff_resn
+  |.  nop
+  |.endmacro
+  |
+  |  math_round floor
+  |  math_round ceil
+  |
+  |.ffunc math_log
+  |  li AT, 8
+  |  bne NARGS8:RC, AT, ->fff_fallback	// Exactly 1 argument.
+  |.  lw SFARG1HI, HI(BASE)
+  |  sltiu AT, SFARG1HI, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.  load_got log
+  |.if FPU
+  |  call_extern
+  |.  ldc1 FARG1, 0(BASE)
+  |.else
+  |  call_extern
+  |.  lw SFARG1LO, LO(BASE)
+  |.endif
+  |  b ->fff_resn
+  |.  nop
+  |
+  |  math_extern log10
+  |  math_extern exp
+  |  math_extern sin
+  |  math_extern cos
+  |  math_extern tan
+  |  math_extern asin
+  |  math_extern acos
+  |  math_extern atan
+  |  math_extern sinh
+  |  math_extern cosh
+  |  math_extern tanh
+  |  math_extern2 pow
+  |  math_extern2 atan2
+  |  math_extern2 fmod
+  |
+  |.if FPU
+  |.ffunc_n math_sqrt
+  |.  sqrt.d FRET1, FARG1
+  |// fallthrough to ->fff_resn
+  |.else
+  |  math_extern sqrt
+  |.endif
+  |
+  |->fff_resn:
+  |  lw PC, FRAME_PC(BASE)
+  |  addiu RA, BASE, -8
+  |.if FPU
+  |  b ->fff_res1
+  |.  sdc1 FRET1, -8(BASE)
+  |.else
+  |  sw SFRETHI, -8+HI(BASE)
+  |  b ->fff_res1
+  |.  sw SFRETLO, -8+LO(BASE)
+  |.endif
+  |
+  |
+  |.ffunc math_ldexp
+  |  sltiu AT, NARGS8:RC, 16
+  |   lw SFARG1HI, HI(BASE)
+  |  bnez AT, ->fff_fallback
+  |.   lw CARG4, 8+HI(BASE)
+  |  bne CARG4, TISNUM, ->fff_fallback
+  |  load_got ldexp
+  |.  sltu AT, SFARG1HI, TISNUM
+  |  beqz AT, ->fff_fallback
+  |.if FPU
+  |.  ldc1 FARG1, 0(BASE)
+  |.else
+  |.  lw SFARG1LO, LO(BASE)
+  |.endif
+  |  call_extern
+  |.  lw CARG3, 8+LO(BASE)
+  |  b ->fff_resn
+  |.  nop
+  |
+  |.ffunc_n math_frexp
+  |  load_got frexp
+  |   lw PC, FRAME_PC(BASE)
+  |  call_extern
+  |.  addiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+  |   lw TMP1, DISPATCH_GL(tmptv)(DISPATCH)
+  |  addiu RA, BASE, -8
+  |.if FPU
+  |   mtc1 TMP1, FARG2
+  |  sdc1 FRET1, 0(RA)
+  |   cvt.d.w FARG2, FARG2
+  |   sdc1 FARG2, 8(RA)
+  |.else
+  |  sw SFRETLO, LO(RA)
+  |  sw SFRETHI, HI(RA)
+  |  sw TMP1, 8+LO(RA)
+  |  sw TISNUM, 8+HI(RA)
+  |.endif
+  |  b ->fff_res
+  |.  li RD, (2+1)*8
+  |
+  |.ffunc_n math_modf
+  |  load_got modf
+  |   lw PC, FRAME_PC(BASE)
+  |  call_extern
+  |.  addiu CARG3, BASE, -8
+  |  addiu RA, BASE, -8
+  |.if FPU
+  |  sdc1 FRET1, 0(BASE)
+  |.else
+  |  sw SFRETLO, LO(BASE)
+  |  sw SFRETHI, HI(BASE)
+  |.endif
+  |  b ->fff_res
+  |.  li RD, (2+1)*8
+  |
+  |.macro math_minmax, name, intins, ismax
+  |  .ffunc_1 name
+  |  addu TMP3, BASE, NARGS8:RC
+  |  bne SFARG1HI, TISNUM, >5
+  |.  addiu TMP2, BASE, 8
+  |1:  // Handle integers.
+  |.  lw SFARG2HI, HI(TMP2)
+  |  beq TMP2, TMP3, ->fff_restv
+  |.  lw SFARG2LO, LO(TMP2)
+  |  bne SFARG2HI, TISNUM, >3
+  |.  slt AT, SFARG1LO, SFARG2LO
+  |  intins SFARG1LO, SFARG2LO, AT
+  |  b <1
+  |.  addiu TMP2, TMP2, 8
+  |
+  |3:  // Convert intermediate result to number and continue with number loop.
+  |  sltiu AT, SFARG2HI, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.if FPU
+  |.  mtc1 SFARG1LO, FRET1
+  |  cvt.d.w FRET1, FRET1
+  |  b >7
+  |.  ldc1 FARG1, 0(TMP2)
+  |.else
+  |.  nop
+  |  bal ->vm_sfi2d_1
+  |.  nop
+  |  b >7
+  |.  nop
+  |.endif
+  |
+  |5:
+  |.  sltiu AT, SFARG1HI, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.if FPU
+  |.  ldc1 FRET1, 0(BASE)
+  |.endif
+  |
+  |6:  // Handle numbers.
+  |.  lw SFARG2HI, HI(TMP2)
+  |.if FPU
+  |  beq TMP2, TMP3, ->fff_resn
+  |.else
+  |  beq TMP2, TMP3, ->fff_restv
+  |.endif
+  |.  sltiu AT, SFARG2HI, LJ_TISNUM
+  |  beqz AT, >8
+  |.if FPU
+  |.  ldc1 FARG1, 0(TMP2)
+  |.else
+  |.  lw SFARG2LO, LO(TMP2)
+  |.endif
+  |7:
+  |.if FPU
+  |.if ismax
+  |  c.olt.d FARG1, FRET1
+  |.else
+  |  c.olt.d FRET1, FARG1
+  |.endif
+  |  movf.d FRET1, FARG1
+  |.else
+  |.if ismax
+  |  bal ->vm_sfcmpogt
+  |.else
+  |  bal ->vm_sfcmpolt
+  |.endif
+  |.  nop
+  |  movz SFARG1LO, SFARG2LO, CRET1
+  |  movz SFARG1HI, SFARG2HI, CRET1
+  |.endif
+  |  b <6
+  |.  addiu TMP2, TMP2, 8
+  |
+  |8:  // Convert integer to number and continue with number loop.
+  |  bne SFARG2HI, TISNUM, ->fff_fallback
+  |.if FPU
+  |.  lwc1 FARG1, LO(TMP2)
+  |  b <7
+  |.  cvt.d.w FARG1, FARG1
+  |.else
+  |.  nop
+  |  bal ->vm_sfi2d_2
+  |.  nop
+  |  b <7
+  |.  nop
+  |.endif
+  |
+  |.endmacro
+  |
+  |  math_minmax math_min, movz, 0
+  |  math_minmax math_max, movn, 1
+  |
+  |//-- String library -----------------------------------------------------
+  |
+  |.ffunc string_byte			// Only handle the 1-arg case here.
+  |  lw CARG3, HI(BASE)
+  |   lw STR:CARG1, LO(BASE)
+  |  xori AT, NARGS8:RC, 8
+  |  addiu CARG3, CARG3, -LJ_TSTR
+  |  or AT, AT, CARG3
+  |  bnez AT, ->fff_fallback		// Need exactly 1 string argument.
+  |.  nop
+  |  lw TMP0, STR:CARG1->len
+  |    addiu RA, BASE, -8
+  |    lw PC, FRAME_PC(BASE)
+  |  sltu RD, r0, TMP0
+  |   lbu TMP1, STR:CARG1[1]		// Access is always ok (NUL at end).
+  |  addiu RD, RD, 1
+  |  sll RD, RD, 3			// RD = ((str->len != 0)+1)*8
+  |  sw TISNUM, HI(RA)
+  |  b ->fff_res
+  |.  sw TMP1, LO(RA)
+  |
+  |.ffunc string_char			// Only handle the 1-arg case here.
+  |  ffgccheck
+  |.  nop
+  |  lw CARG3, HI(BASE)
+  |   lw CARG1, LO(BASE)
+  |  li TMP1, 255
+  |  xori AT, NARGS8:RC, 8		// Exactly 1 argument.
+  |  xor TMP0, CARG3, TISNUM		// Integer.
+  |   sltu TMP1, TMP1, CARG1		// !(255 < n).
+  |  or AT, AT, TMP0
+  |   or AT, AT, TMP1
+  |  bnez AT, ->fff_fallback
+  |.  li CARG3, 1
+  |  addiu CARG2, sp, ARG5_OFS
+  |  sb CARG1, ARG5
+  |->fff_newstr:
+  |  load_got lj_str_new
+  |   sw BASE, L->base
+  |   sw PC, SAVE_PC
+  |  call_intern lj_str_new		// (lua_State *L, char *str, size_t l)
+  |.  move CARG1, L
+  |  // Returns GCstr *.
+  |  lw BASE, L->base
+  |->fff_resstr:
+  |  move SFARG1LO, CRET1
+  |  b ->fff_restv
+  |.  li SFARG1HI, LJ_TSTR
+  |
+  |.ffunc string_sub
+  |  ffgccheck
+  |.  nop
+  |  addiu AT, NARGS8:RC, -16
+  |   lw CARG3, 16+HI(BASE)
+  |   lw TMP0, HI(BASE)
+  |    lw STR:CARG1, LO(BASE)
+  |  bltz AT, ->fff_fallback
+  |.  lw CARG2, 8+HI(BASE)
+  |  beqz AT, >1
+  |.  li CARG4, -1
+  |  bne CARG3, TISNUM, ->fff_fallback
+  |.  lw CARG4, 16+LO(BASE)
+  |1:
+  |  bne CARG2, TISNUM, ->fff_fallback
+  |.  li AT, LJ_TSTR
+  |  bne TMP0, AT, ->fff_fallback
+  |.  lw CARG3, 8+LO(BASE)
+  |  lw CARG2, STR:CARG1->len
+  |  // STR:CARG1 = str, CARG2 = str->len, CARG3 = start, CARG4 = end
+  |  slt AT, CARG4, r0
+  |  addiu TMP0, CARG2, 1
+  |  addu TMP1, CARG4, TMP0
+  |   slt TMP3, CARG3, r0
+  |  movn CARG4, TMP1, AT		// if (end < 0) end += len+1
+  |   addu TMP1, CARG3, TMP0
+  |   movn CARG3, TMP1, TMP3		// if (start < 0) start += len+1
+  |   li TMP2, 1
+  |  slt AT, CARG4, r0
+  |   slt TMP3, r0, CARG3
+  |  movn CARG4, r0, AT			// if (end < 0) end = 0
+  |   movz CARG3, TMP2, TMP3		// if (start < 1) start = 1
+  |  slt AT, CARG2, CARG4
+  |  movn CARG4, CARG2, AT		// if (end > len) end = len
+  |   addu CARG2, STR:CARG1, CARG3
+  |  subu CARG3, CARG4, CARG3		// len = end - start
+  |   addiu CARG2, CARG2, sizeof(GCstr)-1
+  |  bgez CARG3, ->fff_newstr
+  |.  addiu CARG3, CARG3, 1		// len++
+  |->fff_emptystr:  // Return empty string.
+  |  addiu STR:SFARG1LO, DISPATCH, DISPATCH_GL(strempty)
+  |  b ->fff_restv
+  |.  li SFARG1HI, LJ_TSTR
+  |
+  |.macro ffstring_op, name
+  |  .ffunc string_ .. name
+  |  ffgccheck
+  |.  nop
+  |  lw CARG3, HI(BASE)
+  |   lw STR:CARG2, LO(BASE)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  li AT, LJ_TSTR
+  |  bne CARG3, AT, ->fff_fallback
+  |.  addiu SBUF:CARG1, DISPATCH, DISPATCH_GL(tmpbuf)
+  |  load_got lj_buf_putstr_ .. name
+  |  lw TMP0, SBUF:CARG1->b
+  |   sw L, SBUF:CARG1->L
+  |   sw BASE, L->base
+  |  sw TMP0, SBUF:CARG1->w
+  |  call_intern extern lj_buf_putstr_ .. name
+  |.  sw PC, SAVE_PC
+  |  load_got lj_buf_tostr
+  |  call_intern lj_buf_tostr
+  |.  move SBUF:CARG1, SBUF:CRET1
+  |  b ->fff_resstr
+  |.  lw BASE, L->base
+  |.endmacro
+  |
+  |ffstring_op reverse
+  |ffstring_op lower
+  |ffstring_op upper
+  |
+  |//-- Bit library --------------------------------------------------------
+  |
+  |->vm_tobit_fb:
+  |  beqz TMP1, ->fff_fallback
+  |.if FPU
+  |.  ldc1 FARG1, 0(BASE)
+  |  add.d FARG1, FARG1, TOBIT
+  |  jr ra
+  |.  mfc1 CRET1, FARG1
+  |.else
+  |// FP number to bit conversion for soft-float.
+  |->vm_tobit:
+  |  sll TMP0, SFARG1HI, 1
+  |  lui AT, 0x0020
+  |  addu TMP0, TMP0, AT
+  |  slt AT, TMP0, r0
+  |  movz SFARG1LO, r0, AT
+  |  beqz AT, >2
+  |.  li TMP1, 0x3e0
+  |  not TMP1, TMP1
+  |  sra TMP0, TMP0, 21
+  |  subu TMP0, TMP1, TMP0
+  |  slt AT, TMP0, r0
+  |  bnez AT, >1
+  |.  sll TMP1, SFARG1HI, 11
+  |  lui AT, 0x8000
+  |  or TMP1, TMP1, AT
+  |  srl AT, SFARG1LO, 21
+  |  or TMP1, TMP1, AT
+  |  slt AT, SFARG1HI, r0
+  |  beqz AT, >2
+  |.  srlv SFARG1LO, TMP1, TMP0
+  |  subu SFARG1LO, r0, SFARG1LO
+  |2:
+  |  jr ra
+  |.  move CRET1, SFARG1LO
+  |1:
+  |  addiu TMP0, TMP0, 21
+  |  srlv TMP1, SFARG1LO, TMP0
+  |  li AT, 20
+  |  subu TMP0, AT, TMP0
+  |  sll SFARG1LO, SFARG1HI, 12
+  |  sllv AT, SFARG1LO, TMP0
+  |  or SFARG1LO, TMP1, AT
+  |  slt AT, SFARG1HI, r0
+  |  beqz AT, <2
+  |.  nop
+  |  jr ra
+  |.  subu CRET1, r0, SFARG1LO
+  |.endif
+  |
+  |.macro .ffunc_bit, name
+  |  .ffunc_1 bit_..name
+  |  beq SFARG1HI, TISNUM, >6
+  |.  move CRET1, SFARG1LO
+  |  bal ->vm_tobit_fb
+  |.  sltu TMP1, SFARG1HI, TISNUM
+  |6:
+  |.endmacro
+  |
+  |.macro .ffunc_bit_op, name, ins
+  |  .ffunc_bit name
+  |  addiu TMP2, BASE, 8
+  |  addu TMP3, BASE, NARGS8:RC
+  |1:
+  |  lw SFARG1HI, HI(TMP2)
+  |  beq TMP2, TMP3, ->fff_resi
+  |.  lw SFARG1LO, LO(TMP2)
+  |.if FPU
+  |  bne SFARG1HI, TISNUM, >2
+  |.  addiu TMP2, TMP2, 8
+  |  b <1
+  |.  ins CRET1, CRET1, SFARG1LO
+  |2:
+  |   ldc1 FARG1, -8(TMP2)
+  |  sltu TMP1, SFARG1HI, TISNUM
+  |  beqz TMP1, ->fff_fallback
+  |.  add.d FARG1, FARG1, TOBIT
+  |  mfc1 SFARG1LO, FARG1
+  |  b <1
+  |.  ins CRET1, CRET1, SFARG1LO
+  |.else
+  |  beq SFARG1HI, TISNUM, >2
+  |.  move CRET2, CRET1
+  |  bal ->vm_tobit_fb
+  |.  sltu TMP1, SFARG1HI, TISNUM
+  |  move SFARG1LO, CRET2
+  |2:
+  |  ins CRET1, CRET1, SFARG1LO
+  |  b <1
+  |.  addiu TMP2, TMP2, 8
+  |.endif
+  |.endmacro
+  |
+  |.ffunc_bit_op band, and
+  |.ffunc_bit_op bor, or
+  |.ffunc_bit_op bxor, xor
+  |
+  |.ffunc_bit bswap
+  |  srl TMP0, CRET1, 24
+  |   srl TMP2, CRET1, 8
+  |  sll TMP1, CRET1, 24
+  |   andi TMP2, TMP2, 0xff00
+  |  or TMP0, TMP0, TMP1
+  |   andi CRET1, CRET1, 0xff00
+  |  or TMP0, TMP0, TMP2
+  |   sll CRET1, CRET1, 8
+  |  b ->fff_resi
+  |.  or CRET1, TMP0, CRET1
+  |
+  |.ffunc_bit bnot
+  |  b ->fff_resi
+  |.  not CRET1, CRET1
+  |
+  |.macro .ffunc_bit_sh, name, ins, shmod
+  |  .ffunc_2 bit_..name
+  |  beq SFARG1HI, TISNUM, >1
+  |.  nop
+  |  bal ->vm_tobit_fb
+  |.  sltu TMP1, SFARG1HI, TISNUM
+  |  move SFARG1LO, CRET1
+  |1:
+  |  bne SFARG2HI, TISNUM, ->fff_fallback
+  |.  nop
+  |.if shmod == 1
+  |  li AT, 32
+  |  subu TMP0, AT, SFARG2LO
+  |  sllv SFARG2LO, SFARG1LO, SFARG2LO
+  |  srlv SFARG1LO, SFARG1LO, TMP0
+  |.elif shmod == 2
+  |  li AT, 32
+  |  subu TMP0, AT, SFARG2LO
+  |  srlv SFARG2LO, SFARG1LO, SFARG2LO
+  |  sllv SFARG1LO, SFARG1LO, TMP0
+  |.endif
+  |  b ->fff_resi
+  |.  ins CRET1, SFARG1LO, SFARG2LO
+  |.endmacro
+  |
+  |.ffunc_bit_sh lshift, sllv, 0
+  |.ffunc_bit_sh rshift, srlv, 0
+  |.ffunc_bit_sh arshift, srav, 0
+  |// Can't use rotrv, since it's only in MIPS32R2.
+  |.ffunc_bit_sh rol, or, 1
+  |.ffunc_bit_sh ror, or, 2
+  |
+  |.ffunc_bit tobit
+  |->fff_resi:
+  |  lw PC, FRAME_PC(BASE)
+  |  addiu RA, BASE, -8
+  |  sw TISNUM, -8+HI(BASE)
+  |  b ->fff_res1
+  |.  sw CRET1, -8+LO(BASE)
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->fff_fallback:			// Call fast function fallback handler.
+  |  // BASE = new base, RB = CFUNC, RC = nargs*8
+  |  lw TMP3, CFUNC:RB->f
+  |    addu TMP1, BASE, NARGS8:RC
+  |   lw PC, FRAME_PC(BASE)		// Fallback may overwrite PC.
+  |    addiu TMP0, TMP1, 8*LUA_MINSTACK
+  |     lw TMP2, L->maxstack
+  |   sw PC, SAVE_PC			// Redundant (but a defined value).
+  |  sltu AT, TMP2, TMP0
+  |     sw BASE, L->base
+  |    sw TMP1, L->top
+  |  bnez AT, >5			// Need to grow stack.
+  |.  move CFUNCADDR, TMP3
+  |  jalr TMP3				// (lua_State *L)
+  |.  move CARG1, L
+  |  // Either throws an error, or recovers and returns -1, 0 or nresults+1.
+  |  lw BASE, L->base
+  |   sll RD, CRET1, 3
+  |  bgtz CRET1, ->fff_res		// Returned nresults+1?
+  |.  addiu RA, BASE, -8
+  |1:  // Returned 0 or -1: retry fast path.
+  |  lw TMP0, L->top
+  |   lw LFUNC:RB, FRAME_FUNC(BASE)
+  |  bnez CRET1, ->vm_call_tail		// Returned -1?
+  |.  subu NARGS8:RC, TMP0, BASE
+  |  ins_callt				// Returned 0: retry fast path.
+  |
+  |// Reconstruct previous base for vmeta_call during tailcall.
+  |->vm_call_tail:
+  |  andi TMP0, PC, FRAME_TYPE
+  |   li AT, -4
+  |  bnez TMP0, >3
+  |.  and TMP1, PC, AT
+  |  lbu TMP1, OFS_RA(PC)
+  |  sll TMP1, TMP1, 3
+  |  addiu TMP1, TMP1, 8
+  |3:
+  |  b ->vm_call_dispatch		// Resolve again for tailcall.
+  |.  subu TMP2, BASE, TMP1
+  |
+  |5:  // Grow stack for fallback handler.
+  |  load_got lj_state_growstack
+  |  li CARG2, LUA_MINSTACK
+  |  call_intern lj_state_growstack	// (lua_State *L, int n)
+  |.  move CARG1, L
+  |  lw BASE, L->base
+  |  b <1
+  |.  li CRET1, 0			// Force retry.
+  |
+  |->fff_gcstep:			// Call GC step function.
+  |  // BASE = new base, RC = nargs*8
+  |  move MULTRES, ra
+  |  load_got lj_gc_step
+  |   sw BASE, L->base
+  |  addu TMP0, BASE, NARGS8:RC
+  |   sw PC, SAVE_PC			// Redundant (but a defined value).
+  |  sw TMP0, L->top
+  |  call_intern lj_gc_step		// (lua_State *L)
+  |.  move CARG1, L
+  |   lw BASE, L->base
+  |  move ra, MULTRES
+  |    lw TMP0, L->top
+  |  lw CFUNC:RB, FRAME_FUNC(BASE)
+  |  jr ra
+  |.  subu NARGS8:RC, TMP0, BASE
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Special dispatch targets -------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_record:				// Dispatch target for recording phase.
+  |.if JIT
+  |  lbu TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  andi AT, TMP3, HOOK_VMEVENT	// No recording while in vmevent.
+  |  bnez AT, >5
+  |  // Decrement the hookcount for consistency, but always do the call.
+  |.  lw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  andi AT, TMP3, HOOK_ACTIVE
+  |  bnez AT, >1
+  |.  addiu TMP2, TMP2, -1
+  |  andi AT, TMP3, LUA_MASKLINE|LUA_MASKCOUNT
+  |  beqz AT, >1
+  |.  nop
+  |  b >1
+  |.  sw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |.endif
+  |
+  |->vm_rethook:			// Dispatch target for return hooks.
+  |  lbu TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  andi AT, TMP3, HOOK_ACTIVE		// Hook already active?
+  |  beqz AT, >1
+  |5:  // Re-dispatch to static ins.
+  |.  lw AT, GG_DISP2STATIC(TMP0)	// Assumes TMP0 holds DISPATCH+OP*4.
+  |  jr AT
+  |.  nop
+  |
+  |->vm_inshook:			// Dispatch target for instr/line hooks.
+  |  lbu TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  lw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  andi AT, TMP3, HOOK_ACTIVE		// Hook already active?
+  |  bnez AT, <5
+  |.  andi AT, TMP3, LUA_MASKLINE|LUA_MASKCOUNT
+  |  beqz AT, <5
+  |.  addiu TMP2, TMP2, -1
+  |  beqz TMP2, >1
+  |.  sw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  andi AT, TMP3, LUA_MASKLINE
+  |  beqz AT, <5
+  |1:
+  |.  load_got lj_dispatch_ins
+  |   sw MULTRES, SAVE_MULTRES
+  |  move CARG2, PC
+  |   sw BASE, L->base
+  |  // SAVE_PC must hold the _previous_ PC. The callee updates it with PC.
+  |  call_intern lj_dispatch_ins	// (lua_State *L, const BCIns *pc)
+  |.  move CARG1, L
+  |3:
+  |  lw BASE, L->base
+  |4:  // Re-dispatch to static ins.
+  |  lw INS, -4(PC)
+  |  decode_OP4a TMP1, INS
+  |  decode_OP4b TMP1
+  |  addu TMP0, DISPATCH, TMP1
+  |   decode_RD8a RD, INS
+  |  lw AT, GG_DISP2STATIC(TMP0)
+  |   decode_RA8a RA, INS
+  |   decode_RD8b RD
+  |  jr AT
+  |   decode_RA8b RA
+  |
+  |->cont_hook:				// Continue from hook yield.
+  |  addiu PC, PC, 4
+  |  b <4
+  |.  lw MULTRES, -24+LO(RB)		// Restore MULTRES for *M ins.
+  |
+  |->vm_hotloop:			// Hot loop counter underflow.
+  |.if JIT
+  |  lw LFUNC:TMP1, FRAME_FUNC(BASE)
+  |   addiu CARG1, DISPATCH, GG_DISP2J
+  |   sw PC, SAVE_PC
+  |  lw TMP1, LFUNC:TMP1->pc
+  |   move CARG2, PC
+  |   sw L, DISPATCH_J(L)(DISPATCH)
+  |  lbu TMP1, PC2PROTO(framesize)(TMP1)
+  |  load_got lj_trace_hot
+  |   sw BASE, L->base
+  |  sll TMP1, TMP1, 3
+  |  addu TMP1, BASE, TMP1
+  |  call_intern lj_trace_hot		// (jit_State *J, const BCIns *pc)
+  |.  sw TMP1, L->top
+  |  b <3
+  |.  nop
+  |.endif
+  |
+  |->vm_callhook:			// Dispatch target for call hooks.
+  |.if JIT
+  |  b >1
+  |.endif
+  |.  move CARG2, PC
+  |
+  |->vm_hotcall:			// Hot call counter underflow.
+  |.if JIT
+  |  ori CARG2, PC, 1
+  |1:
+  |.endif
+  |  load_got lj_dispatch_call
+  |  addu TMP0, BASE, RC
+  |   sw PC, SAVE_PC
+  |   sw BASE, L->base
+  |  subu RA, RA, BASE
+  |   sw TMP0, L->top
+  |  call_intern lj_dispatch_call	// (lua_State *L, const BCIns *pc)
+  |.  move CARG1, L
+  |  // Returns ASMFunction.
+  |  lw BASE, L->base
+  |   lw TMP0, L->top
+  |   sw r0, SAVE_PC			// Invalidate for subsequent line hook.
+  |  subu NARGS8:RC, TMP0, BASE
+  |  addu RA, BASE, RA
+  |  lw LFUNC:RB, FRAME_FUNC(BASE)
+  |  jr CRET1
+  |.  lw INS, -4(PC)
+  |
+  |->cont_stitch:			// Trace stitching.
+  |.if JIT
+  |  // RA = resultptr, RB = meta base
+  |  lw INS, -4(PC)
+  |    lw TMP2, -24+LO(RB)		// Save previous trace.
+  |  decode_RA8a RC, INS
+  |   addiu AT, MULTRES, -8
+  |  decode_RA8b RC
+  |   beqz AT, >2
+  |. addu RC, BASE, RC			// Call base.
+  |1:  // Move results down.
+  |  lw SFRETHI, HI(RA)
+  |   lw SFRETLO, LO(RA)
+  |   addiu AT, AT, -8
+  |    addiu RA, RA, 8
+  |  sw SFRETHI, HI(RC)
+  |   sw SFRETLO, LO(RC)
+  |   bnez AT, <1
+  |.   addiu RC, RC, 8
+  |2:
+  |   decode_RA8a RA, INS
+  |    decode_RB8a RB, INS
+  |   decode_RA8b RA
+  |    decode_RB8b RB
+  |   addu RA, RA, RB
+  |   addu RA, BASE, RA
+  |3:
+  |   sltu AT, RC, RA
+  |   bnez AT, >9			// More results wanted?
+  |.   nop
+  |
+  |  lhu TMP3, TRACE:TMP2->traceno
+  |  lhu RD, TRACE:TMP2->link
+  |  beq RD, TMP3, ->cont_nop		// Blacklisted.
+  |.  load_got lj_dispatch_stitch
+  |  bnez RD, =>BC_JLOOP		// Jump to stitched trace.
+  |.  sll RD, RD, 3
+  |
+  |  // Stitch a new trace to the previous trace.
+  |  sw TMP3, DISPATCH_J(exitno)(DISPATCH)
+  |  sw L, DISPATCH_J(L)(DISPATCH)
+  |  sw BASE, L->base
+  |  addiu CARG1, DISPATCH, GG_DISP2J
+  |  call_intern lj_dispatch_stitch	// (jit_State *J, const BCIns *pc)
+  |.  move CARG2, PC
+  |  b ->cont_nop
+  |.  lw BASE, L->base
+  |
+  |9:
+  |  sw TISNIL, HI(RC)
+  |  b <3
+  |.  addiu RC, RC, 8
+  |.endif
+  |
+  |->vm_profhook:			// Dispatch target for profiler hook.
+#if LJ_HASPROFILE
+  |  load_got lj_dispatch_profile
+  |   sw MULTRES, SAVE_MULTRES
+  |  move CARG2, PC
+  |   sw BASE, L->base
+  |  call_intern lj_dispatch_profile	// (lua_State *L, const BCIns *pc)
+  |.  move CARG1, L
+  |  // HOOK_PROFILE is off again, so re-dispatch to dynamic instruction.
+  |  addiu PC, PC, -4
+  |  b ->cont_nop
+  |.  lw BASE, L->base
+#endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Trace exit handler -------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro savex_, a, b
+  |.if FPU
+  |  sdc1 f..a, 16+a*8(sp)
+  |  sw r..a, 16+32*8+a*4(sp)
+  |  sw r..b, 16+32*8+b*4(sp)
+  |.else
+  |  sw r..a, 16+a*4(sp)
+  |  sw r..b, 16+b*4(sp)
+  |.endif
+  |.endmacro
+  |
+  |->vm_exit_handler:
+  |.if JIT
+  |.if FPU
+  |  addiu sp, sp, -(16+32*8+32*4)
+  |.else
+  |  addiu sp, sp, -(16+32*4)
+  |.endif
+  |  savex_ 0, 1
+  |  savex_ 2, 3
+  |  savex_ 4, 5
+  |  savex_ 6, 7
+  |  savex_ 8, 9
+  |  savex_ 10, 11
+  |  savex_ 12, 13
+  |  savex_ 14, 15
+  |  savex_ 16, 17
+  |  savex_ 18, 19
+  |  savex_ 20, 21
+  |  savex_ 22, 23
+  |  savex_ 24, 25
+  |  savex_ 26, 27
+  |.if FPU
+  |  sdc1 f28, 16+28*8(sp)
+  |  sdc1 f30, 16+30*8(sp)
+  |  sw r28, 16+32*8+28*4(sp)
+  |  sw r30, 16+32*8+30*4(sp)
+  |  sw r0, 16+32*8+31*4(sp)		// Clear RID_TMP.
+  |  addiu TMP2, sp, 16+32*8+32*4	// Recompute original value of sp.
+  |  sw TMP2, 16+32*8+29*4(sp)		// Store sp in RID_SP
+  |.else
+  |  sw r28, 16+28*4(sp)
+  |  sw r30, 16+30*4(sp)
+  |  sw r0, 16+31*4(sp)			// Clear RID_TMP.
+  |  addiu TMP2, sp, 16+32*4		// Recompute original value of sp.
+  |  sw TMP2, 16+29*4(sp)		// Store sp in RID_SP
+  |.endif
+  |  li_vmstate EXIT
+  |  addiu DISPATCH, JGL, -GG_DISP2G-32768
+  |  lw TMP1, 0(TMP2)			// Load exit number.
+  |  st_vmstate
+  |  lw L, DISPATCH_GL(cur_L)(DISPATCH)
+  |   lw BASE, DISPATCH_GL(jit_base)(DISPATCH)
+  |  load_got lj_trace_exit
+  |  sw L, DISPATCH_J(L)(DISPATCH)
+  |  sw ra, DISPATCH_J(parent)(DISPATCH)  // Store trace number.
+  |   sw BASE, L->base
+  |  sw TMP1, DISPATCH_J(exitno)(DISPATCH)  // Store exit number.
+  |  addiu CARG1, DISPATCH, GG_DISP2J
+  |   sw r0, DISPATCH_GL(jit_base)(DISPATCH)
+  |  call_intern lj_trace_exit		// (jit_State *J, ExitState *ex)
+  |.  addiu CARG2, sp, 16
+  |  // Returns MULTRES (unscaled) or negated error code.
+  |  lw TMP1, L->cframe
+  |  li AT, -4
+  |   lw BASE, L->base
+  |  and sp, TMP1, AT
+  |   lw PC, SAVE_PC			// Get SAVE_PC.
+  |  b >1
+  |.  sw L, SAVE_L			// Set SAVE_L (on-trace resume/yield).
+  |.endif
+  |->vm_exit_interp:
+  |.if JIT
+  |  // CRET1 = MULTRES or negated error code, BASE, PC and JGL set.
+  |  lw L, SAVE_L
+  |   addiu DISPATCH, JGL, -GG_DISP2G-32768
+  |  sw BASE, L->base
+  |1:
+  |  bltz CRET1, >9			// Check for error from exit.
+  |.  lw LFUNC:RB, FRAME_FUNC(BASE)
+  |    .FPU lui TMP3, 0x59c0			// TOBIT = 2^52 + 2^51 (float).
+  |  sll MULTRES, CRET1, 3
+  |    li TISNIL, LJ_TNIL
+  |     li TISNUM, LJ_TISNUM		// Setup type comparison constants.
+  |  sw MULTRES, SAVE_MULTRES
+  |    .FPU mtc1 TMP3, TOBIT
+  |  lw TMP1, LFUNC:RB->pc
+  |   sw r0, DISPATCH_GL(jit_base)(DISPATCH)
+  |  lw KBASE, PC2PROTO(k)(TMP1)
+  |    .FPU cvt.d.s TOBIT, TOBIT
+  |  // Modified copy of ins_next which handles function header dispatch, too.
+  |  lw INS, 0(PC)
+  |   addiu PC, PC, 4
+  |    // Assumes TISNIL == ~LJ_VMST_INTERP == -1
+  |    sw TISNIL, DISPATCH_GL(vmstate)(DISPATCH)
+  |  decode_OP4a TMP1, INS
+  |  decode_OP4b TMP1
+  |    sltiu TMP2, TMP1, BC_FUNCF*4
+  |  addu TMP0, DISPATCH, TMP1
+  |   decode_RD8a RD, INS
+  |  lw AT, 0(TMP0)
+  |   decode_RA8a RA, INS
+  |    beqz TMP2, >2
+  |.  decode_RA8b RA
+  |  jr AT
+  |.  decode_RD8b RD
+  |2:
+  |  sltiu TMP2, TMP1, (BC_FUNCC+2)*4	// Fast function?
+  |  bnez TMP2, >3
+  |.  lw TMP1, FRAME_PC(BASE)
+  |  // Check frame below fast function.
+  |  andi TMP0, TMP1, FRAME_TYPE
+  |  bnez TMP0, >3			// Trace stitching continuation?
+  |.  nop
+  |  // Otherwise set KBASE for Lua function below fast function.
+  |  lw TMP2, -4(TMP1)
+  |  decode_RA8a TMP0, TMP2
+  |  decode_RA8b TMP0
+  |  subu TMP1, BASE, TMP0
+  |  lw LFUNC:TMP2, -8+FRAME_FUNC(TMP1)
+  |  lw TMP1, LFUNC:TMP2->pc
+  |  lw KBASE, PC2PROTO(k)(TMP1)
+  |3:
+  |  addiu RC, MULTRES, -8
+  |  jr AT
+  |.  addu RA, RA, BASE
+  |
+  |9:  // Rethrow error from the right C frame.
+  |  load_got lj_err_trace
+  |  sub CARG2, r0, CRET1
+  |  call_intern lj_err_trace		// (lua_State *L, int errcode)
+  |.  move CARG1, L
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Math helper functions ----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Hard-float round to integer.
+  |// Modifies AT, TMP0, FRET1, FRET2, f4. Keeps all others incl. FARG1.
+  |.macro vm_round_hf, func
+  |  lui TMP0, 0x4330			// Hiword of 2^52 (double).
+  |  mtc1 r0, f4
+  |  mtc1 TMP0, f5
+  |  abs.d FRET2, FARG1			// |x|
+  |    mfc1 AT, f13
+  |  c.olt.d 0, FRET2, f4
+  |   add.d FRET1, FRET2, f4		// (|x| + 2^52) - 2^52
+  |  bc1f 0, >1				// Truncate only if |x| < 2^52.
+  |.  sub.d FRET1, FRET1, f4
+  |    slt AT, AT, r0
+  |.if "func" == "ceil"
+  |   lui TMP0, 0xbff0			// Hiword of -1 (double). Preserves -0.
+  |.else
+  |   lui TMP0, 0x3ff0			// Hiword of +1 (double).
+  |.endif
+  |.if "func" == "trunc"
+  |   mtc1 TMP0, f5
+  |  c.olt.d 0, FRET2, FRET1		// |x| < result?
+  |   sub.d FRET2, FRET1, f4
+  |  movt.d FRET1, FRET2, 0		// If yes, subtract +1.
+  |  neg.d FRET2, FRET1
+  |  jr ra
+  |.  movn.d FRET1, FRET2, AT		// Merge sign bit back in.
+  |.else
+  |  neg.d FRET2, FRET1
+  |   mtc1 TMP0, f5
+  |  movn.d FRET1, FRET2, AT		// Merge sign bit back in.
+  |.if "func" == "ceil"
+  |  c.olt.d 0, FRET1, FARG1		// x > result?
+  |.else
+  |  c.olt.d 0, FARG1, FRET1		// x < result?
+  |.endif
+  |   sub.d FRET2, FRET1, f4		// If yes, subtract +-1.
+  |  jr ra
+  |.  movt.d FRET1, FRET2, 0
+  |.endif
+  |1:
+  |  jr ra
+  |.  mov.d FRET1, FARG1
+  |.endmacro
+  |
+  |.macro vm_round, func
+  |.if FPU
+  |  vm_round_hf, func
+  |.endif
+  |.endmacro
+  |
+  |->vm_floor:
+  |  vm_round floor
+  |->vm_ceil:
+  |  vm_round ceil
+  |->vm_trunc:
+  |.if JIT
+  |  vm_round trunc
+  |.endif
+  |
+  |// Soft-float integer to number conversion.
+  |.macro sfi2d, AHI, ALO
+  |.if not FPU
+  |  beqz ALO, >9			// Handle zero first.
+  |.  sra TMP0, ALO, 31
+  |  xor TMP1, ALO, TMP0
+  |  subu TMP1, TMP1, TMP0		// Absolute value in TMP1.
+  |  clz AHI, TMP1
+  |    andi TMP0, TMP0, 0x800		// Mask sign bit.
+  |  li AT, 0x3ff+31-1
+  |   sllv TMP1, TMP1, AHI		// Align mantissa left with leading 1.
+  |  subu AHI, AT, AHI			// Exponent - 1 in AHI.
+  |   sll ALO, TMP1, 21
+  |  or AHI, AHI, TMP0			// Sign | Exponent.
+  |   srl TMP1, TMP1, 11
+  |  sll AHI, AHI, 20			// Align left.
+  |  jr ra
+  |.  addu AHI, AHI, TMP1		// Add mantissa, increment exponent.
+  |9:
+  |  jr ra
+  |.  li AHI, 0
+  |.endif
+  |.endmacro
+  |
+  |// Input SFARG1LO. Output: SFARG1*. Temporaries: AT, TMP0, TMP1.
+  |->vm_sfi2d_1:
+  |  sfi2d SFARG1HI, SFARG1LO
+  |
+  |// Input SFARG2LO. Output: SFARG2*. Temporaries: AT, TMP0, TMP1.
+  |->vm_sfi2d_2:
+  |  sfi2d SFARG2HI, SFARG2LO
+  |
+  |// Soft-float comparison. Equivalent to c.eq.d.
+  |// Input: SFARG*. Output: CRET1. Temporaries: AT, TMP0, TMP1.
+  |->vm_sfcmpeq:
+  |.if not FPU
+  |  sll AT, SFARG1HI, 1
+  |  sll TMP0, SFARG2HI, 1
+  |  or CRET1, SFARG1LO, SFARG2LO
+  |  or TMP1, AT, TMP0
+  |  or TMP1, TMP1, CRET1
+  |  beqz TMP1, >8			// Both args +-0: return 1.
+  |.  sltu CRET1, r0, SFARG1LO
+  |  lui TMP1, 0xffe0
+  |  addu AT, AT, CRET1
+  |   sltu CRET1, r0, SFARG2LO
+  |  sltu AT, TMP1, AT
+  |   addu TMP0, TMP0, CRET1
+  |   sltu TMP0, TMP1, TMP0
+  |  or TMP1, AT, TMP0
+  |  bnez TMP1, >9			// Either arg is NaN: return 0;
+  |.  xor TMP0, SFARG1HI, SFARG2HI
+  |  xor TMP1, SFARG1LO, SFARG2LO
+  |  or AT, TMP0, TMP1
+  |  jr ra
+  |.  sltiu CRET1, AT, 1		// Same values: return 1.
+  |8:
+  |  jr ra
+  |.  li CRET1, 1
+  |9:
+  |  jr ra
+  |.  li CRET1, 0
+  |.endif
+  |
+  |// Soft-float comparison. Equivalent to c.ult.d and c.olt.d.
+  |// Input: SFARG*. Output: CRET1. Temporaries: AT, TMP0, TMP1, CRET2.
+  |->vm_sfcmpult:
+  |.if not FPU
+  |  b >1
+  |.  li CRET2, 1
+  |.endif
+  |
+  |->vm_sfcmpolt:
+  |.if not FPU
+  |  li CRET2, 0
+  |1:
+  |  sll AT, SFARG1HI, 1
+  |  sll TMP0, SFARG2HI, 1
+  |  or CRET1, SFARG1LO, SFARG2LO
+  |  or TMP1, AT, TMP0
+  |  or TMP1, TMP1, CRET1
+  |  beqz TMP1, >8			// Both args +-0: return 0.
+  |.  sltu CRET1, r0, SFARG1LO
+  |  lui TMP1, 0xffe0
+  |  addu AT, AT, CRET1
+  |   sltu CRET1, r0, SFARG2LO
+  |  sltu AT, TMP1, AT
+  |   addu TMP0, TMP0, CRET1
+  |   sltu TMP0, TMP1, TMP0
+  |  or TMP1, AT, TMP0
+  |  bnez TMP1, >9			// Either arg is NaN: return 0 or 1;
+  |.  and AT, SFARG1HI, SFARG2HI
+  |  bltz AT, >5			// Both args negative?
+  |.  nop
+  |  beq SFARG1HI, SFARG2HI, >8
+  |.  sltu CRET1, SFARG1LO, SFARG2LO
+  |  jr ra
+  |.  slt CRET1, SFARG1HI, SFARG2HI
+  |5:  // Swap conditions if both operands are negative.
+  |  beq SFARG1HI, SFARG2HI, >8
+  |.  sltu CRET1, SFARG2LO, SFARG1LO
+  |  jr ra
+  |.  slt CRET1, SFARG2HI, SFARG1HI
+  |8:
+  |  jr ra
+  |.  nop
+  |9:
+  |  jr ra
+  |.  move CRET1, CRET2
+  |.endif
+  |
+  |->vm_sfcmpogt:
+  |.if not FPU
+  |  sll AT, SFARG2HI, 1
+  |  sll TMP0, SFARG1HI, 1
+  |  or CRET1, SFARG2LO, SFARG1LO
+  |  or TMP1, AT, TMP0
+  |  or TMP1, TMP1, CRET1
+  |  beqz TMP1, >8			// Both args +-0: return 0.
+  |.  sltu CRET1, r0, SFARG2LO
+  |  lui TMP1, 0xffe0
+  |  addu AT, AT, CRET1
+  |   sltu CRET1, r0, SFARG1LO
+  |  sltu AT, TMP1, AT
+  |   addu TMP0, TMP0, CRET1
+  |   sltu TMP0, TMP1, TMP0
+  |  or TMP1, AT, TMP0
+  |  bnez TMP1, >9			// Either arg is NaN: return 0 or 1;
+  |.  and AT, SFARG2HI, SFARG1HI
+  |  bltz AT, >5			// Both args negative?
+  |.  nop
+  |  beq SFARG2HI, SFARG1HI, >8
+  |.  sltu CRET1, SFARG2LO, SFARG1LO
+  |  jr ra
+  |.  slt CRET1, SFARG2HI, SFARG1HI
+  |5:  // Swap conditions if both operands are negative.
+  |  beq SFARG2HI, SFARG1HI, >8
+  |.  sltu CRET1, SFARG1LO, SFARG2LO
+  |  jr ra
+  |.  slt CRET1, SFARG1HI, SFARG2HI
+  |8:
+  |  jr ra
+  |.  nop
+  |9:
+  |  jr ra
+  |.  li CRET1, 0
+  |.endif
+  |
+  |// Soft-float comparison. Equivalent to c.ole.d a, b or c.ole.d b, a.
+  |// Input: SFARG*, TMP3. Output: CRET1. Temporaries: AT, TMP0, TMP1.
+  |->vm_sfcmpolex:
+  |.if not FPU
+  |  sll AT, SFARG1HI, 1
+  |  sll TMP0, SFARG2HI, 1
+  |  or CRET1, SFARG1LO, SFARG2LO
+  |  or TMP1, AT, TMP0
+  |  or TMP1, TMP1, CRET1
+  |  beqz TMP1, >8			// Both args +-0: return 1.
+  |.  sltu CRET1, r0, SFARG1LO
+  |  lui TMP1, 0xffe0
+  |  addu AT, AT, CRET1
+  |   sltu CRET1, r0, SFARG2LO
+  |  sltu AT, TMP1, AT
+  |   addu TMP0, TMP0, CRET1
+  |   sltu TMP0, TMP1, TMP0
+  |  or TMP1, AT, TMP0
+  |  bnez TMP1, >9			// Either arg is NaN: return 0;
+  |.  and AT, SFARG1HI, SFARG2HI
+  |  xor AT, AT, TMP3
+  |  bltz AT, >5			// Both args negative?
+  |.  nop
+  |  beq SFARG1HI, SFARG2HI, >6
+  |.  sltu CRET1, SFARG2LO, SFARG1LO
+  |  jr ra
+  |.  slt CRET1, SFARG2HI, SFARG1HI
+  |5:  // Swap conditions if both operands are negative.
+  |  beq SFARG1HI, SFARG2HI, >6
+  |.  sltu CRET1, SFARG1LO, SFARG2LO
+  |  slt CRET1, SFARG1HI, SFARG2HI
+  |6:
+  |  jr ra
+  |.  nop
+  |8:
+  |  jr ra
+  |.  li CRET1, 1
+  |9:
+  |  jr ra
+  |.  li CRET1, 0
+  |.endif
+  |
+  |.macro sfmin_max, name, fpcall
+  |->vm_sf .. name:
+  |.if JIT and not FPU
+  |  move TMP2, ra
+  |  bal ->fpcall
+  |.  nop
+  |  move TMP0, CRET1
+  |  move SFRETHI, SFARG1HI
+  |   move SFRETLO, SFARG1LO
+  |  move ra, TMP2
+  |  movz SFRETHI, SFARG2HI, TMP0
+  |  jr ra
+  |.  movz SFRETLO, SFARG2LO, TMP0
+  |.endif
+  |.endmacro
+  |
+  |  sfmin_max min, vm_sfcmpolt
+  |  sfmin_max max, vm_sfcmpogt
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Miscellaneous functions --------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.define NEXT_TAB,		TAB:CARG1
+  |.define NEXT_IDX,		CARG2
+  |.define NEXT_ASIZE,		CARG3
+  |.define NEXT_NIL,		CARG4
+  |.define NEXT_TMP0,		r12
+  |.define NEXT_TMP1,		r13
+  |.define NEXT_TMP2,		r14
+  |.define NEXT_RES_VK,		CRET1
+  |.define NEXT_RES_IDX,	CRET2
+  |.define NEXT_RES_PTR,	sp
+  |.define NEXT_RES_VAL_I,	0(sp)
+  |.define NEXT_RES_VAL_IT,	4(sp)
+  |.define NEXT_RES_KEY_I,	8(sp)
+  |.define NEXT_RES_KEY_IT,	12(sp)
+  |
+  |// TValue *lj_vm_next(GCtab *t, uint32_t idx)
+  |// Next idx returned in CRET2.
+  |->vm_next:
+  |.if JIT and ENDIAN_LE
+  |   lw NEXT_ASIZE, NEXT_TAB->asize
+  |  lw NEXT_TMP0, NEXT_TAB->array
+  |    li NEXT_NIL, LJ_TNIL
+  |1:  // Traverse array part.
+  |   sltu AT, NEXT_IDX, NEXT_ASIZE
+  |    sll NEXT_TMP1, NEXT_IDX, 3
+  |   beqz AT, >5
+  |.   addu NEXT_TMP1, NEXT_TMP0, NEXT_TMP1
+  |  lw NEXT_TMP2, 4(NEXT_TMP1)
+  |   sw NEXT_IDX, NEXT_RES_KEY_I
+  |  beq NEXT_TMP2, NEXT_NIL, <1
+  |.  addiu NEXT_IDX, NEXT_IDX, 1
+  |    lw NEXT_TMP0, 0(NEXT_TMP1)
+  |   li AT, LJ_TISNUM
+  |  sw NEXT_TMP2, NEXT_RES_VAL_IT
+  |   sw AT, NEXT_RES_KEY_IT
+  |    sw NEXT_TMP0, NEXT_RES_VAL_I
+  |  move NEXT_RES_VK, NEXT_RES_PTR
+  |  jr ra
+  |.  move NEXT_RES_IDX, NEXT_IDX
+  |
+  |5:  // Traverse hash part.
+  |  subu NEXT_RES_IDX, NEXT_IDX, NEXT_ASIZE
+  |   lw NODE:NEXT_RES_VK, NEXT_TAB->node
+  |    sll NEXT_TMP2, NEXT_RES_IDX, 5
+  |  lw NEXT_TMP0, NEXT_TAB->hmask
+  |    sll AT, NEXT_RES_IDX, 3
+  |    subu AT, NEXT_TMP2, AT
+  |   addu NODE:NEXT_RES_VK, NODE:NEXT_RES_VK, AT
+  |6:
+  |  sltu AT, NEXT_TMP0, NEXT_RES_IDX
+  |  bnez AT, >8
+  |.  nop
+  |  lw NEXT_TMP2, NODE:NEXT_RES_VK->val.it
+  |  bne NEXT_TMP2, NEXT_NIL, >9
+  |.  addiu NEXT_RES_IDX, NEXT_RES_IDX, 1
+  |  // Skip holes in hash part.
+  |  b <6
+  |.  addiu NODE:NEXT_RES_VK, NODE:NEXT_RES_VK, sizeof(Node)
+  |
+  |8:  // End of iteration. Set the key to nil (not the value).
+  |  sw NEXT_NIL, NEXT_RES_KEY_IT
+  |  move NEXT_RES_VK, NEXT_RES_PTR
+  |9:
+  |  jr ra
+  |.  addu NEXT_RES_IDX, NEXT_RES_IDX, NEXT_ASIZE
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- FFI helper functions -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Handler for callback functions. Callback slot number in r1, g in r2.
+  |->vm_ffi_callback:
+  |.if FFI
+  |.type CTSTATE, CTState, PC
+  |  saveregs
+  |  lw CTSTATE, GL:r2->ctype_state
+  |   addiu DISPATCH, r2, GG_G2DISP
+  |  load_got lj_ccallback_enter
+  |  sw r1, CTSTATE->cb.slot
+  |  sw CARG1, CTSTATE->cb.gpr[0]
+  |  sw CARG2, CTSTATE->cb.gpr[1]
+  |   .FPU sdc1 FARG1, CTSTATE->cb.fpr[0]
+  |  sw CARG3, CTSTATE->cb.gpr[2]
+  |  sw CARG4, CTSTATE->cb.gpr[3]
+  |   .FPU sdc1 FARG2, CTSTATE->cb.fpr[1]
+  |  addiu TMP0, sp, CFRAME_SPACE+16
+  |  sw TMP0, CTSTATE->cb.stack
+  |  sw r0, SAVE_PC			// Any value outside of bytecode is ok.
+  |   move CARG2, sp
+  |  call_intern lj_ccallback_enter	// (CTState *cts, void *cf)
+  |.  move CARG1, CTSTATE
+  |  // Returns lua_State *.
+  |  lw BASE, L:CRET1->base
+  |  lw RC, L:CRET1->top
+  |     li TISNUM, LJ_TISNUM		// Setup type comparison constants.
+  |   move L, CRET1
+  |     .FPU lui TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |  lw LFUNC:RB, FRAME_FUNC(BASE)
+  |     .FPU mtc1 TMP3, TOBIT
+  |    li_vmstate INTERP
+  |     li TISNIL, LJ_TNIL
+  |  subu RC, RC, BASE
+  |    st_vmstate
+  |     .FPU cvt.d.s TOBIT, TOBIT
+  |  ins_callt
+  |.endif
+  |
+  |->cont_ffi_callback:			// Return from FFI callback.
+  |.if FFI
+  |  load_got lj_ccallback_leave
+  |  lw CTSTATE, DISPATCH_GL(ctype_state)(DISPATCH)
+  |   sw BASE, L->base
+  |   sw RB, L->top
+  |  sw L, CTSTATE->L
+  |  move CARG2, RA
+  |  call_intern lj_ccallback_leave	// (CTState *cts, TValue *o)
+  |.  move CARG1, CTSTATE
+  |   .FPU ldc1 FRET1, CTSTATE->cb.fpr[0]
+  |  lw CRET1, CTSTATE->cb.gpr[0]
+  |   .FPU ldc1 FRET2, CTSTATE->cb.fpr[1]
+  |  b ->vm_leave_unw
+  |.  lw CRET2, CTSTATE->cb.gpr[1]
+  |.endif
+  |
+  |->vm_ffi_call:			// Call C function via FFI.
+  |  // Caveat: needs special frame unwinding, see below.
+  |.if FFI
+  |  .type CCSTATE, CCallState, CARG1
+  |  lw TMP1, CCSTATE->spadj
+  |   lbu CARG2, CCSTATE->nsp
+  |  move TMP2, sp
+  |  subu sp, sp, TMP1
+  |  sw ra, -4(TMP2)
+  |   sll CARG2, CARG2, 2
+  |  sw r16, -8(TMP2)
+  |  sw CCSTATE, -12(TMP2)
+  |  move r16, TMP2
+  |  addiu TMP1, CCSTATE, offsetof(CCallState, stack)
+  |  addiu TMP2, sp, 16
+  |  beqz CARG2, >2
+  |.  addu TMP3, TMP1, CARG2
+  |1:
+  |   lw TMP0, 0(TMP1)
+  |  addiu TMP1, TMP1, 4
+  |  sltu AT, TMP1, TMP3
+  |   sw TMP0, 0(TMP2)
+  |  bnez AT, <1
+  |.  addiu TMP2, TMP2, 4
+  |2:
+  |  lw CFUNCADDR, CCSTATE->func
+  |  lw CARG2, CCSTATE->gpr[1]
+  |  lw CARG3, CCSTATE->gpr[2]
+  |  lw CARG4, CCSTATE->gpr[3]
+  |  .FPU ldc1 FARG1, CCSTATE->fpr[0]
+  |  .FPU ldc1 FARG2, CCSTATE->fpr[1]
+  |  jalr CFUNCADDR
+  |.  lw CARG1, CCSTATE->gpr[0]		// Do this last, since CCSTATE is CARG1.
+  |  lw CCSTATE:TMP1, -12(r16)
+  |  lw TMP2, -8(r16)
+  |  lw ra, -4(r16)
+  |  sw CRET1, CCSTATE:TMP1->gpr[0]
+  |  sw CRET2, CCSTATE:TMP1->gpr[1]
+  |.if FPU
+  |  sdc1 FRET1, CCSTATE:TMP1->fpr[0]
+  |  sdc1 FRET2, CCSTATE:TMP1->fpr[1]
+  |.else
+  |  sw CARG1, CCSTATE:TMP1->gpr[2]	// Soft-float: complex double .im part.
+  |  sw CARG2, CCSTATE:TMP1->gpr[3]
+  |.endif
+  |  move sp, r16
+  |  jr ra
+  |.  move r16, TMP2
+  |.endif
+  |// Note: vm_ffi_call must be the last function in this object file!
+  |
+  |//-----------------------------------------------------------------------
+}
+
+/* Generate the code for a single instruction. */
+static void build_ins(BuildCtx *ctx, BCOp op, int defop)
+{
+  int vk = 0;
+  |=>defop:
+
+  switch (op) {
+
+  /* -- Comparison ops ---------------------------------------------------- */
+
+  /* Remember: all ops branch for a true comparison, fall through otherwise. */
+
+  case BC_ISLT: case BC_ISGE: case BC_ISLE: case BC_ISGT:
+    |  // RA = src1*8, RD = src2*8, JMP with RD = target
+    |.macro bc_comp, FRA, FRD, RAHI, RALO, RDHI, RDLO, movop, fmovop, fcomp, sfcomp
+    |  addu RA, BASE, RA
+    |   addu RD, BASE, RD
+    |  lw RAHI, HI(RA)
+    |   lw RDHI, HI(RD)
+    |    lhu TMP2, OFS_RD(PC)
+    |    addiu PC, PC, 4
+    |  bne RAHI, TISNUM, >2
+    |.  lw RALO, LO(RA)
+    |    lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  lw RDLO, LO(RD)
+    |  bne RDHI, TISNUM, >5
+    |.   decode_RD4b TMP2
+    |  slt AT, SFARG1LO, SFARG2LO
+    |    addu TMP2, TMP2, TMP3
+    |  movop TMP2, r0, AT
+    |1:
+    |  addu PC, PC, TMP2
+    |  ins_next
+    |
+    |2:  // RA is not an integer.
+    |  sltiu AT, RAHI, LJ_TISNUM
+    |  beqz AT, ->vmeta_comp
+    |.   lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  sltiu AT, RDHI, LJ_TISNUM
+    |.if FPU
+    |  ldc1 FRA, 0(RA)
+    |   ldc1 FRD, 0(RD)
+    |.else
+    |   lw RDLO, LO(RD)
+    |.endif
+    |  beqz AT, >4
+    |.   decode_RD4b TMP2
+    |3:  // RA and RD are both numbers.
+    |.if FPU
+    |  fcomp f20, f22
+    |   addu TMP2, TMP2, TMP3
+    |  b <1
+    |.  fmovop TMP2, r0
+    |.else
+    |  bal sfcomp
+    |.   addu TMP2, TMP2, TMP3
+    |  b <1
+    |.  movop TMP2, r0, CRET1
+    |.endif
+    |
+    |4:  // RA is a number, RD is not a number.
+    |  bne RDHI, TISNUM, ->vmeta_comp
+    |  // RA is a number, RD is an integer. Convert RD to a number.
+    |.if FPU
+    |.  lwc1 FRD, LO(RD)
+    |  b <3
+    |.  cvt.d.w FRD, FRD
+    |.else
+    |.  nop
+    |.if "RDHI" == "SFARG1HI"
+    |  bal ->vm_sfi2d_1
+    |.else
+    |  bal ->vm_sfi2d_2
+    |.endif
+    |.  nop
+    |  b <3
+    |.  nop
+    |.endif
+    |
+    |5:  // RA is an integer, RD is not an integer
+    |  sltiu AT, RDHI, LJ_TISNUM
+    |  beqz AT, ->vmeta_comp
+    |  // RA is an integer, RD is a number. Convert RA to a number.
+    |.if FPU
+    |.  mtc1 RALO, FRA
+    |   ldc1 FRD, 0(RD)
+    |  b <3
+    |   cvt.d.w FRA, FRA
+    |.else
+    |.  nop
+    |.if "RAHI" == "SFARG1HI"
+    |  bal ->vm_sfi2d_1
+    |.else
+    |  bal ->vm_sfi2d_2
+    |.endif
+    |.  nop
+    |  b <3
+    |.  nop
+    |.endif
+    |.endmacro
+    |
+    if (op == BC_ISLT) {
+      |  bc_comp f20, f22, SFARG1HI, SFARG1LO, SFARG2HI, SFARG2LO, movz, movf, c.olt.d, ->vm_sfcmpolt
+    } else if (op == BC_ISGE) {
+      |  bc_comp f20, f22, SFARG1HI, SFARG1LO, SFARG2HI, SFARG2LO, movn, movt, c.olt.d, ->vm_sfcmpolt
+    } else if (op == BC_ISLE) {
+      |  bc_comp f22, f20, SFARG2HI, SFARG2LO, SFARG1HI, SFARG1LO, movn, movt, c.ult.d, ->vm_sfcmpult
+    } else {
+      |  bc_comp f22, f20, SFARG2HI, SFARG2LO, SFARG1HI, SFARG1LO, movz, movf, c.ult.d, ->vm_sfcmpult
+    }
+    break;
+
+  case BC_ISEQV: case BC_ISNEV:
+    vk = op == BC_ISEQV;
+    |  // RA = src1*8, RD = src2*8, JMP with RD = target
+    |  addu RA, BASE, RA
+    |    addiu PC, PC, 4
+    |  addu RD, BASE, RD
+    |  lw SFARG1HI, HI(RA)
+    |    lhu TMP2, -4+OFS_RD(PC)
+    |  lw SFARG2HI, HI(RD)
+    |    lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  sltu AT, TISNUM, SFARG1HI
+    |  sltu TMP0, TISNUM, SFARG2HI
+    |  or AT, AT, TMP0
+    if (vk) {
+      |  beqz AT, ->BC_ISEQN_Z
+    } else {
+      |  beqz AT, ->BC_ISNEN_Z
+    }
+    |.   decode_RD4b TMP2
+    |  // Either or both types are not numbers.
+    |  lw SFARG1LO, LO(RA)
+    |  lw SFARG2LO, LO(RD)
+    |  addu TMP2, TMP2, TMP3
+    |.if FFI
+    |  li TMP3, LJ_TCDATA
+    |  beq SFARG1HI, TMP3, ->vmeta_equal_cd
+    |.endif
+    |.  sltiu AT, SFARG1HI, LJ_TISPRI		// Not a primitive?
+    |.if FFI
+    |  beq SFARG2HI, TMP3, ->vmeta_equal_cd
+    |.endif
+    |.  xor TMP3, SFARG1LO, SFARG2LO		// Same tv?
+    |  xor SFARG2HI, SFARG2HI, SFARG1HI		// Same type?
+    |  sltiu TMP0, SFARG1HI, LJ_TISTABUD+1	// Table or userdata?
+    |  movz TMP3, r0, AT			// Ignore tv if primitive.
+    |  movn TMP0, r0, SFARG2HI			// Tab/ud and same type?
+    |  or AT, SFARG2HI, TMP3			// Same type && (pri||same tv).
+    |  movz TMP0, r0, AT
+    |  beqz TMP0, >1	// Done if not tab/ud or not same type or same tv.
+    if (vk) {
+      |.  movn TMP2, r0, AT
+    } else {
+      |.  movz TMP2, r0, AT
+    }
+    |  // Different tables or userdatas. Need to check __eq metamethod.
+    |  // Field metatable must be at same offset for GCtab and GCudata!
+    |  lw TAB:TMP1, TAB:SFARG1LO->metatable
+    |  beqz TAB:TMP1, >1		// No metatable?
+    |.  nop
+    |  lbu TMP1, TAB:TMP1->nomm
+    |  andi TMP1, TMP1, 1<<MM_eq
+    |  bnez TMP1, >1			// Or 'no __eq' flag set?
+    |.  nop
+    |  b ->vmeta_equal			// Handle __eq metamethod.
+    |.  li TMP0, 1-vk			// ne = 0 or 1.
+    |1:
+    |  addu PC, PC, TMP2
+    |  ins_next
+    break;
+
+  case BC_ISEQS: case BC_ISNES:
+    vk = op == BC_ISEQS;
+    |  // RA = src*8, RD = str_const*8 (~), JMP with RD = target
+    |  addu RA, BASE, RA
+    |   addiu PC, PC, 4
+    |  lw TMP0, HI(RA)
+    |   srl RD, RD, 1
+    |  lw STR:TMP3, LO(RA)
+    |   subu RD, KBASE, RD
+    |    lhu TMP2, -4+OFS_RD(PC)
+    |.if FFI
+    |  li AT, LJ_TCDATA
+    |  beq TMP0, AT, ->vmeta_equal_cd
+    |.endif
+    |.  lw STR:TMP1, -4(RD)		// KBASE-4-str_const*4
+    |  addiu TMP0, TMP0, -LJ_TSTR
+    |   decode_RD4b TMP2
+    |  xor TMP1, STR:TMP1, STR:TMP3
+    |  or TMP0, TMP0, TMP1
+    |   lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |   addu TMP2, TMP2, TMP3
+    if (vk) {
+      |  movn TMP2, r0, TMP0
+    } else {
+      |  movz TMP2, r0, TMP0
+    }
+    |  addu PC, PC, TMP2
+    |  ins_next
+    break;
+
+  case BC_ISEQN: case BC_ISNEN:
+    vk = op == BC_ISEQN;
+    |  // RA = src*8, RD = num_const*8, JMP with RD = target
+    |  addu RA, BASE, RA
+    |   addu RD, KBASE, RD
+    |  lw SFARG1HI, HI(RA)
+    |   lw SFARG2HI, HI(RD)
+    |    lhu TMP2, OFS_RD(PC)
+    |    addiu PC, PC, 4
+    |    lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |    decode_RD4b TMP2
+    if (vk) {
+      |->BC_ISEQN_Z:
+    } else {
+      |->BC_ISNEN_Z:
+    }
+    |  bne SFARG1HI, TISNUM, >3
+    |.  lw SFARG1LO, LO(RA)
+    |  lw SFARG2LO, LO(RD)
+    |    addu TMP2, TMP2, TMP3
+    |  bne SFARG2HI, TISNUM, >6
+    |.  xor AT, SFARG1LO, SFARG2LO
+    if (vk) {
+      |  movn TMP2, r0, AT
+      |1:
+      |  addu PC, PC, TMP2
+      |2:
+    } else {
+      |  movz TMP2, r0, AT
+      |1:
+      |2:
+      |  addu PC, PC, TMP2
+    }
+    |  ins_next
+    |
+    |3:  // RA is not an integer.
+    |  sltiu AT, SFARG1HI, LJ_TISNUM
+    |.if FFI
+    |  beqz AT, >8
+    |.else
+    |  beqz AT, <2
+    |.endif
+    |.   addu TMP2, TMP2, TMP3
+    |  sltiu AT, SFARG2HI, LJ_TISNUM
+    |.if FPU
+    |  ldc1 f20, 0(RA)
+    |   ldc1 f22, 0(RD)
+    |.endif
+    |  beqz AT, >5
+    |.  lw SFARG2LO, LO(RD)
+    |4:  // RA and RD are both numbers.
+    |.if FPU
+    |  c.eq.d f20, f22
+    |  b <1
+    if (vk) {
+      |.  movf TMP2, r0
+    } else {
+      |.  movt TMP2, r0
+    }
+    |.else
+    |  bal ->vm_sfcmpeq
+    |.  nop
+    |  b <1
+    if (vk) {
+      |.  movz TMP2, r0, CRET1
+    } else {
+      |.  movn TMP2, r0, CRET1
+    }
+    |.endif
+    |
+    |5:  // RA is a number, RD is not a number.
+    |.if FFI
+    |  bne SFARG2HI, TISNUM, >9
+    |.else
+    |  bne SFARG2HI, TISNUM, <2
+    |.endif
+    |  // RA is a number, RD is an integer. Convert RD to a number.
+    |.if FPU
+    |.  lwc1 f22, LO(RD)
+    |  b <4
+    |.  cvt.d.w f22, f22
+    |.else
+    |.  nop
+    |  bal ->vm_sfi2d_2
+    |.  nop
+    |  b <4
+    |.  nop
+    |.endif
+    |
+    |6:  // RA is an integer, RD is not an integer
+    |  sltiu AT, SFARG2HI, LJ_TISNUM
+    |.if FFI
+    |  beqz AT, >9
+    |.else
+    |  beqz AT, <2
+    |.endif
+    |  // RA is an integer, RD is a number. Convert RA to a number.
+    |.if FPU
+    |.  mtc1 SFARG1LO, f20
+    |   ldc1 f22, 0(RD)
+    |  b <4
+    |   cvt.d.w f20, f20
+    |.else
+    |.  nop
+    |  bal ->vm_sfi2d_1
+    |.  nop
+    |  b <4
+    |.  nop
+    |.endif
+    |
+    |.if FFI
+    |8:
+    |  li AT, LJ_TCDATA
+    |  bne SFARG1HI, AT, <2
+    |.  nop
+    |  b ->vmeta_equal_cd
+    |.  nop
+    |9:
+    |  li AT, LJ_TCDATA
+    |  bne SFARG2HI, AT, <2
+    |.  nop
+    |  b ->vmeta_equal_cd
+    |.  nop
+    |.endif
+    break;
+
+  case BC_ISEQP: case BC_ISNEP:
+    vk = op == BC_ISEQP;
+    |  // RA = src*8, RD = primitive_type*8 (~), JMP with RD = target
+    |  addu RA, BASE, RA
+    |   srl TMP1, RD, 3
+    |  lw TMP0, HI(RA)
+    |    lhu TMP2, OFS_RD(PC)
+    |   not TMP1, TMP1
+    |    addiu PC, PC, 4
+    |.if FFI
+    |  li AT, LJ_TCDATA
+    |  beq TMP0, AT, ->vmeta_equal_cd
+    |.endif
+    |.  xor TMP0, TMP0, TMP1
+    |  decode_RD4b TMP2
+    |  lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  addu TMP2, TMP2, TMP3
+    if (vk) {
+      |  movn TMP2, r0, TMP0
+    } else {
+      |  movz TMP2, r0, TMP0
+    }
+    |  addu PC, PC, TMP2
+    |  ins_next
+    break;
+
+  /* -- Unary test and copy ops ------------------------------------------- */
+
+  case BC_ISTC: case BC_ISFC: case BC_IST: case BC_ISF:
+    |  // RA = dst*8 or unused, RD = src*8, JMP with RD = target
+    |  addu RD, BASE, RD
+    |   lhu TMP2, OFS_RD(PC)
+    |  lw TMP0, HI(RD)
+    |   addiu PC, PC, 4
+    if (op == BC_IST || op == BC_ISF) {
+      |  sltiu TMP0, TMP0, LJ_TISTRUECOND
+      |   decode_RD4b TMP2
+      |   lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+      |   addu TMP2, TMP2, TMP3
+      if (op == BC_IST) {
+	|  movz TMP2, r0, TMP0
+      } else {
+	|  movn TMP2, r0, TMP0
+      }
+      |  addu PC, PC, TMP2
+    } else {
+      |  sltiu TMP0, TMP0, LJ_TISTRUECOND
+      |  lw SFRETHI, HI(RD)
+      |   lw SFRETLO, LO(RD)
+      if (op == BC_ISTC) {
+	|  beqz TMP0, >1
+      } else {
+	|  bnez TMP0, >1
+      }
+      |.  addu RA, BASE, RA
+      |   decode_RD4b TMP2
+      |   lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+      |   addu TMP2, TMP2, TMP3
+      |  sw SFRETHI, HI(RA)
+      |   sw SFRETLO, LO(RA)
+      |   addu PC, PC, TMP2
+      |1:
+    }
+    |  ins_next
+    break;
+
+  case BC_ISTYPE:
+    |  // RA = src*8, RD = -type*8
+    |  addu TMP2, BASE, RA
+    |  srl TMP1, RD, 3
+    |  lw TMP0, HI(TMP2)
+    |  ins_next1
+    |  addu AT, TMP0, TMP1
+    |  bnez AT, ->vmeta_istype
+    |.  ins_next2
+    break;
+  case BC_ISNUM:
+    |  // RA = src*8, RD = -(TISNUM-1)*8
+    |  addu TMP2, BASE, RA
+    |  lw TMP0, HI(TMP2)
+    |  ins_next1
+    |  sltiu AT, TMP0, LJ_TISNUM
+    |  beqz AT, ->vmeta_istype
+    |.  ins_next2
+    break;
+
+  /* -- Unary ops --------------------------------------------------------- */
+
+  case BC_MOV:
+    |  // RA = dst*8, RD = src*8
+    |  addu RD, BASE, RD
+    |   addu RA, BASE, RA
+    |  lw SFRETHI, HI(RD)
+    |   lw SFRETLO, LO(RD)
+    |  ins_next1
+    |  sw SFRETHI, HI(RA)
+    |   sw SFRETLO, LO(RA)
+    |  ins_next2
+    break;
+  case BC_NOT:
+    |  // RA = dst*8, RD = src*8
+    |  addu RD, BASE, RD
+    |   addu RA, BASE, RA
+    |  lw TMP0, HI(RD)
+    |   li TMP1, LJ_TFALSE
+    |  sltiu TMP0, TMP0, LJ_TISTRUECOND
+    |  addiu TMP1, TMP0, LJ_TTRUE
+    |  ins_next1
+    |  sw TMP1, HI(RA)
+    |  ins_next2
+    break;
+  case BC_UNM:
+    |  // RA = dst*8, RD = src*8
+    |  addu RB, BASE, RD
+    |  lw SFARG1HI, HI(RB)
+    |   addu RA, BASE, RA
+    |  bne SFARG1HI, TISNUM, >2
+    |.  lw SFARG1LO, LO(RB)
+    |  lui TMP1, 0x8000
+    |  beq SFARG1LO, TMP1, ->vmeta_unm	// Meta handler deals with -2^31.
+    |.  negu SFARG1LO, SFARG1LO
+    |1:
+    |  ins_next1
+    |  sw SFARG1HI, HI(RA)
+    |   sw SFARG1LO, LO(RA)
+    |  ins_next2
+    |2:
+    |  sltiu AT, SFARG1HI, LJ_TISNUM
+    |  beqz AT, ->vmeta_unm
+    |.  lui TMP1, 0x8000
+    |  b <1
+    |.  xor SFARG1HI, SFARG1HI, TMP1
+    break;
+  case BC_LEN:
+    |  // RA = dst*8, RD = src*8
+    |  addu CARG2, BASE, RD
+    |   addu RA, BASE, RA
+    |  lw TMP0, HI(CARG2)
+    |   lw CARG1, LO(CARG2)
+    |  li AT, LJ_TSTR
+    |  bne TMP0, AT, >2
+    |.  li AT, LJ_TTAB
+    |   lw CRET1, STR:CARG1->len
+    |1:
+    |  ins_next1
+    |  sw TISNUM, HI(RA)
+    |   sw CRET1, LO(RA)
+    |  ins_next2
+    |2:
+    |  bne TMP0, AT, ->vmeta_len
+    |.  nop
+#if LJ_52
+    |  lw TAB:TMP2, TAB:CARG1->metatable
+    |  bnez TAB:TMP2, >9
+    |.  nop
+    |3:
+#endif
+    |->BC_LEN_Z:
+    |  load_got lj_tab_len
+    |  call_intern lj_tab_len		// (GCtab *t)
+    |.  nop
+    |  // Returns uint32_t (but less than 2^31).
+    |  b <1
+    |.  nop
+#if LJ_52
+    |9:
+    |  lbu TMP0, TAB:TMP2->nomm
+    |  andi TMP0, TMP0, 1<<MM_len
+    |  bnez TMP0, <3			// 'no __len' flag set: done.
+    |.  nop
+    |  b ->vmeta_len
+    |.  nop
+#endif
+    break;
+
+  /* -- Binary ops -------------------------------------------------------- */
+
+    |.macro fpmod, a, b, c
+    |  bal ->vm_floor     // floor(b/c)
+    |.  div.d FARG1, b, c
+    |  mul.d a, FRET1, c
+    |  sub.d a, b, a      // b - floor(b/c)*c
+    |.endmacro
+
+    |.macro sfpmod
+    |  addiu sp, sp, -16
+    |
+    |  load_got __divdf3
+    |  sw SFARG1HI, HI(sp)
+    |   sw SFARG1LO, LO(sp)
+    |  sw SFARG2HI, 8+HI(sp)
+    |  call_extern
+    |.  sw SFARG2LO, 8+LO(sp)
+    |
+    |  load_got floor
+    |  move SFARG1HI, SFRETHI
+    |  call_extern
+    |.  move SFARG1LO, SFRETLO
+    |
+    |  load_got __muldf3
+    |  move SFARG1HI, SFRETHI
+    |   move SFARG1LO, SFRETLO
+    |  lw SFARG2HI, 8+HI(sp)
+    |  call_extern
+    |.  lw SFARG2LO, 8+LO(sp)
+    |
+    |  load_got __subdf3
+    |  lw SFARG1HI, HI(sp)
+    |   lw SFARG1LO, LO(sp)
+    |  move SFARG2HI, SFRETHI
+    |  call_extern
+    |.  move SFARG2LO, SFRETLO
+    |
+    |  addiu sp, sp, 16
+    |.endmacro
+
+    |.macro ins_arithpre, label
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    |  // RA = dst*8, RB = src1*8, RC = src2*8 | num_const*8
+    ||switch (vk) {
+    ||case 0:
+    |   decode_RB8a RB, INS
+    |   decode_RB8b RB
+    |    decode_RDtoRC8 RC, RD
+    |   // RA = dst*8, RB = src1*8, RC = num_const*8
+    |   addu RB, BASE, RB
+    |.if "label" ~= "none"
+    |   b label
+    |.endif
+    |.   addu RC, KBASE, RC
+    ||  break;
+    ||case 1:
+    |   decode_RB8a RC, INS
+    |   decode_RB8b RC
+    |    decode_RDtoRC8 RB, RD
+    |   // RA = dst*8, RB = num_const*8, RC = src1*8
+    |   addu RC, BASE, RC
+    |.if "label" ~= "none"
+    |   b label
+    |.endif
+    |.   addu RB, KBASE, RB
+    ||  break;
+    ||default:
+    |   decode_RB8a RB, INS
+    |   decode_RB8b RB
+    |    decode_RDtoRC8 RC, RD
+    |   // RA = dst*8, RB = src1*8, RC = src2*8
+    |   addu RB, BASE, RB
+    |.if "label" ~= "none"
+    |   b label
+    |.endif
+    |.   addu RC, BASE, RC
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro ins_arith, intins, fpins, fpcall, label
+    |  ins_arithpre none
+    |
+    |.if "label" ~= "none"
+    |label:
+    |.endif
+    |
+    |  lw SFARG1HI, HI(RB)
+    |   lw SFARG2HI, HI(RC)
+    |
+    |.if "intins" ~= "div"
+    |
+    |  // Check for two integers.
+    |  lw SFARG1LO, LO(RB)
+    |  bne SFARG1HI, TISNUM, >5
+    |.  lw SFARG2LO, LO(RC)
+    |  bne SFARG2HI, TISNUM, >5
+    |
+    |.if "intins" == "addu"
+    |.  intins CRET1, SFARG1LO, SFARG2LO
+    |  xor TMP1, CRET1, SFARG1LO	// ((y^a) & (y^b)) < 0: overflow.
+    |  xor TMP2, CRET1, SFARG2LO
+    |  and TMP1, TMP1, TMP2
+    |  bltz TMP1, ->vmeta_arith
+    |.  addu RA, BASE, RA
+    |.elif "intins" == "subu"
+    |.  intins CRET1, SFARG1LO, SFARG2LO
+    |  xor TMP1, CRET1, SFARG1LO	// ((y^a) & (a^b)) < 0: overflow.
+    |  xor TMP2, SFARG1LO, SFARG2LO
+    |  and TMP1, TMP1, TMP2
+    |  bltz TMP1, ->vmeta_arith
+    |.  addu RA, BASE, RA
+    |.elif "intins" == "mult"
+    |.  intins SFARG1LO, SFARG2LO
+    |  mflo CRET1
+    |  mfhi TMP2
+    |  sra TMP1, CRET1, 31
+    |  bne TMP1, TMP2, ->vmeta_arith
+    |.  addu RA, BASE, RA
+    |.else
+    |.  load_got lj_vm_modi
+    |  beqz SFARG2LO, ->vmeta_arith
+    |.  addu RA, BASE, RA
+    |.if ENDIAN_BE
+    |  move CARG1, SFARG1LO
+    |.endif
+    |  call_extern
+    |.  move CARG2, SFARG2LO
+    |.endif
+    |
+    |  ins_next1
+    |  sw TISNUM, HI(RA)
+    |   sw CRET1, LO(RA)
+    |3:
+    |  ins_next2
+    |
+    |.elif not FPU
+    |
+    |  lw SFARG1LO, LO(RB)
+    |   lw SFARG2LO, LO(RC)
+    |
+    |.endif
+    |
+    |5:  // Check for two numbers.
+    |  .FPU ldc1 f20, 0(RB)
+    |  sltiu AT, SFARG1HI, LJ_TISNUM
+    |   sltiu TMP0, SFARG2HI, LJ_TISNUM
+    |  .FPU ldc1 f22, 0(RC)
+    |   and AT, AT, TMP0
+    |   beqz AT, ->vmeta_arith
+    |.   addu RA, BASE, RA
+    |
+    |.if FPU
+    |  fpins FRET1, f20, f22
+    |.elif "fpcall" == "sfpmod"
+    |  sfpmod
+    |.else
+    |  load_got fpcall
+    |  call_extern
+    |.  nop
+    |.endif
+    |
+    |  ins_next1
+    |.if not FPU
+    |  sw SFRETHI, HI(RA)
+    |.endif
+    |.if "intins" ~= "div"
+    |  b <3
+    |.endif
+    |.if FPU
+    |.  sdc1 FRET1, 0(RA)
+    |.else
+    |.  sw SFRETLO, LO(RA)
+    |.endif
+    |.if "intins" == "div"
+    |  ins_next2
+    |.endif
+    |
+    |.endmacro
+
+  case BC_ADDVN: case BC_ADDNV: case BC_ADDVV:
+    |  ins_arith addu, add.d, __adddf3, none
+    break;
+  case BC_SUBVN: case BC_SUBNV: case BC_SUBVV:
+    |  ins_arith subu, sub.d, __subdf3, none
+    break;
+  case BC_MULVN: case BC_MULNV: case BC_MULVV:
+    |  ins_arith mult, mul.d, __muldf3, none
+    break;
+  case BC_DIVVN:
+    |  ins_arith div, div.d, __divdf3, ->BC_DIVVN_Z
+    break;
+  case BC_DIVNV: case BC_DIVVV:
+    |  ins_arithpre ->BC_DIVVN_Z
+    break;
+  case BC_MODVN:
+    |  ins_arith modi, fpmod, sfpmod, ->BC_MODVN_Z
+    break;
+  case BC_MODNV: case BC_MODVV:
+    |  ins_arithpre ->BC_MODVN_Z
+    break;
+  case BC_POW:
+    |  ins_arithpre none
+    |  lw SFARG1HI, HI(RB)
+    |   lw SFARG2HI, HI(RC)
+    |  sltiu AT, SFARG1HI, LJ_TISNUM
+    |  sltiu TMP0, SFARG2HI, LJ_TISNUM
+    |  and AT, AT, TMP0
+    |  load_got pow
+    |  beqz AT, ->vmeta_arith
+    |.  addu RA, BASE, RA
+    |.if FPU
+    |  ldc1 FARG1, 0(RB)
+    |  ldc1 FARG2, 0(RC)
+    |.else
+    |  lw SFARG1LO, LO(RB)
+    |   lw SFARG2LO, LO(RC)
+    |.endif
+    |  call_extern
+    |.  nop
+    |  ins_next1
+    |.if FPU
+    |  sdc1 FRET1, 0(RA)
+    |.else
+    |  sw SFRETHI, HI(RA)
+    |   sw SFRETLO, LO(RA)
+    |.endif
+    |  ins_next2
+    break;
+
+  case BC_CAT:
+    |  // RA = dst*8, RB = src_start*8, RC = src_end*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RDtoRC8 RC, RD
+    |  subu CARG3, RC, RB
+    |   sw BASE, L->base
+    |  addu CARG2, BASE, RC
+    |  move MULTRES, RB
+    |->BC_CAT_Z:
+    |  load_got lj_meta_cat
+    |  srl CARG3, CARG3, 3
+    |   sw PC, SAVE_PC
+    |  call_intern lj_meta_cat		// (lua_State *L, TValue *top, int left)
+    |.  move CARG1, L
+    |  // Returns NULL (finished) or TValue * (metamethod).
+    |  bnez CRET1, ->vmeta_binop
+    |.  lw BASE, L->base
+    |  addu RB, BASE, MULTRES
+    |  lw SFRETHI, HI(RB)
+    |   lw SFRETLO, LO(RB)
+    |   addu RA, BASE, RA
+    |  ins_next1
+    |  sw SFRETHI, HI(RA)
+    |   sw SFRETLO, LO(RA)
+    |  ins_next2
+    break;
+
+  /* -- Constant ops ------------------------------------------------------ */
+
+  case BC_KSTR:
+    |  // RA = dst*8, RD = str_const*8 (~)
+    |  srl TMP1, RD, 1
+    |  subu TMP1, KBASE, TMP1
+    |  ins_next1
+    |  lw TMP0, -4(TMP1)		// KBASE-4-str_const*4
+    |  addu RA, BASE, RA
+    |   li TMP2, LJ_TSTR
+    |  sw TMP0, LO(RA)
+    |   sw TMP2, HI(RA)
+    |  ins_next2
+    break;
+  case BC_KCDATA:
+    |.if FFI
+    |  // RA = dst*8, RD = cdata_const*8 (~)
+    |  srl TMP1, RD, 1
+    |  subu TMP1, KBASE, TMP1
+    |  ins_next1
+    |  lw TMP0, -4(TMP1)		// KBASE-4-cdata_const*4
+    |  addu RA, BASE, RA
+    |   li TMP2, LJ_TCDATA
+    |  sw TMP0, LO(RA)
+    |   sw TMP2, HI(RA)
+    |  ins_next2
+    |.endif
+    break;
+  case BC_KSHORT:
+    |  // RA = dst*8, RD = int16_literal*8
+    |  sra RD, INS, 16
+    |  addu RA, BASE, RA
+    |  ins_next1
+    |  sw TISNUM, HI(RA)
+    |   sw RD, LO(RA)
+    |  ins_next2
+    break;
+  case BC_KNUM:
+    |  // RA = dst*8, RD = num_const*8
+    |  addu RD, KBASE, RD
+    |   addu RA, BASE, RA
+    |  lw SFRETHI, HI(RD)
+    |   lw SFRETLO, LO(RD)
+    |  ins_next1
+    |  sw SFRETHI, HI(RA)
+    |   sw SFRETLO, LO(RA)
+    |  ins_next2
+    break;
+  case BC_KPRI:
+    |  // RA = dst*8, RD = primitive_type*8 (~)
+    |  srl TMP1, RD, 3
+    |   addu RA, BASE, RA
+    |  not TMP0, TMP1
+    |  ins_next1
+    |   sw TMP0, HI(RA)
+    |  ins_next2
+    break;
+  case BC_KNIL:
+    |  // RA = base*8, RD = end*8
+    |  addu RA, BASE, RA
+    |  sw TISNIL, HI(RA)
+    |   addiu RA, RA, 8
+    |  addu RD, BASE, RD
+    |1:
+    |  sw TISNIL, HI(RA)
+    |  slt AT, RA, RD
+    |  bnez AT, <1
+    |.  addiu RA, RA, 8
+    |  ins_next_
+    break;
+
+  /* -- Upvalue and function ops ------------------------------------------ */
+
+  case BC_UGET:
+    |  // RA = dst*8, RD = uvnum*8
+    |  lw LFUNC:RB, FRAME_FUNC(BASE)
+    |   srl RD, RD, 1
+    |   addu RD, RD, LFUNC:RB
+    |  lw UPVAL:RB, LFUNC:RD->uvptr
+    |  ins_next1
+    |  lw TMP1, UPVAL:RB->v
+    |  lw SFRETHI, HI(TMP1)
+    |   lw SFRETLO, LO(TMP1)
+    |  addu RA, BASE, RA
+    |  sw SFRETHI, HI(RA)
+    |   sw SFRETLO, LO(RA)
+    |  ins_next2
+    break;
+  case BC_USETV:
+    |  // RA = uvnum*8, RD = src*8
+    |  lw LFUNC:RB, FRAME_FUNC(BASE)
+    |    srl RA, RA, 1
+    |   addu RD, BASE, RD
+    |    addu RA, RA, LFUNC:RB
+    |  lw UPVAL:RB, LFUNC:RA->uvptr
+    |   lw SFRETHI, HI(RD)
+    |    lw SFRETLO, LO(RD)
+    |  lbu TMP3, UPVAL:RB->marked
+    |   lw CARG2, UPVAL:RB->v
+    |  andi TMP3, TMP3, LJ_GC_BLACK	// isblack(uv)
+    |  lbu TMP0, UPVAL:RB->closed
+    |   sw SFRETHI, HI(CARG2)
+    |    sw SFRETLO, LO(CARG2)
+    |  li AT, LJ_GC_BLACK|1
+    |  or TMP3, TMP3, TMP0
+    |  beq TMP3, AT, >2			// Upvalue is closed and black?
+    |.  addiu TMP2, SFRETHI, -(LJ_TNUMX+1)
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if new value is collectable.
+    |  sltiu AT, TMP2, LJ_TISGCV - (LJ_TNUMX+1)
+    |  beqz AT, <1			// tvisgcv(v)
+    |.  nop
+    |  lbu TMP3, GCOBJ:SFRETLO->gch.marked
+    |  andi TMP3, TMP3, LJ_GC_WHITES	// iswhite(v)
+    |  beqz TMP3, <1
+    |.  load_got lj_gc_barrieruv
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  call_intern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |.  addiu CARG1, DISPATCH, GG_DISP2G
+    |  b <1
+    |.  nop
+    break;
+  case BC_USETS:
+    |  // RA = uvnum*8, RD = str_const*8 (~)
+    |  lw LFUNC:RB, FRAME_FUNC(BASE)
+    |    srl RA, RA, 1
+    |   srl TMP1, RD, 1
+    |    addu RA, RA, LFUNC:RB
+    |   subu TMP1, KBASE, TMP1
+    |  lw UPVAL:RB, LFUNC:RA->uvptr
+    |   lw STR:TMP1, -4(TMP1)		// KBASE-4-str_const*4
+    |  lbu TMP2, UPVAL:RB->marked
+    |   lw CARG2, UPVAL:RB->v
+    |   lbu TMP3, STR:TMP1->marked
+    |  andi AT, TMP2, LJ_GC_BLACK	// isblack(uv)
+    |   lbu TMP2, UPVAL:RB->closed
+    |   li TMP0, LJ_TSTR
+    |   sw STR:TMP1, LO(CARG2)
+    |  bnez AT, >2
+    |.  sw TMP0, HI(CARG2)
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if string is white and ensure upvalue is closed.
+    |  beqz TMP2, <1
+    |.  andi AT, TMP3, LJ_GC_WHITES	// iswhite(str)
+    |  beqz AT, <1
+    |.  load_got lj_gc_barrieruv
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  call_intern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |.  addiu CARG1, DISPATCH, GG_DISP2G
+    |  b <1
+    |.  nop
+    break;
+  case BC_USETN:
+    |  // RA = uvnum*8, RD = num_const*8
+    |  lw LFUNC:RB, FRAME_FUNC(BASE)
+    |   srl RA, RA, 1
+    |    addu RD, KBASE, RD
+    |   addu RA, RA, LFUNC:RB
+    |   lw UPVAL:RB, LFUNC:RA->uvptr
+    |    lw SFRETHI, HI(RD)
+    |     lw SFRETLO, LO(RD)
+    |   lw TMP1, UPVAL:RB->v
+    |  ins_next1
+    |    sw SFRETHI, HI(TMP1)
+    |     sw SFRETLO, LO(TMP1)
+    |  ins_next2
+    break;
+  case BC_USETP:
+    |  // RA = uvnum*8, RD = primitive_type*8 (~)
+    |  lw LFUNC:RB, FRAME_FUNC(BASE)
+    |   srl RA, RA, 1
+    |    srl TMP0, RD, 3
+    |   addu RA, RA, LFUNC:RB
+    |    not TMP0, TMP0
+    |   lw UPVAL:RB, LFUNC:RA->uvptr
+    |  ins_next1
+    |   lw TMP1, UPVAL:RB->v
+    |   sw TMP0, HI(TMP1)
+    |  ins_next2
+    break;
+
+  case BC_UCLO:
+    |  // RA = level*8, RD = target
+    |  lw TMP2, L->openupval
+    |  branch_RD			// Do this first since RD is not saved.
+    |  load_got lj_func_closeuv
+    |   sw BASE, L->base
+    |  beqz TMP2, >1
+    |.  move CARG1, L
+    |  call_intern lj_func_closeuv	// (lua_State *L, TValue *level)
+    |.  addu CARG2, BASE, RA
+    |  lw BASE, L->base
+    |1:
+    |  ins_next
+    break;
+
+  case BC_FNEW:
+    |  // RA = dst*8, RD = proto_const*8 (~) (holding function prototype)
+    |  srl TMP1, RD, 1
+    |  load_got lj_func_newL_gc
+    |  subu TMP1, KBASE, TMP1
+    |  lw CARG3, FRAME_FUNC(BASE)
+    |  lw CARG2, -4(TMP1)		// KBASE-4-tab_const*4
+    |   sw BASE, L->base
+    |   sw PC, SAVE_PC
+    |  // (lua_State *L, GCproto *pt, GCfuncL *parent)
+    |  call_intern lj_func_newL_gc
+    |.  move CARG1, L
+    |  // Returns GCfuncL *.
+    |  lw BASE, L->base
+    |   li TMP0, LJ_TFUNC
+    |  ins_next1
+    |  addu RA, BASE, RA
+    |  sw LFUNC:CRET1, LO(RA)
+    |   sw TMP0, HI(RA)
+    |  ins_next2
+    break;
+
+  /* -- Table ops --------------------------------------------------------- */
+
+  case BC_TNEW:
+  case BC_TDUP:
+    |  // RA = dst*8, RD = (hbits|asize)*8 | tab_const*8 (~)
+    |  lw TMP0, DISPATCH_GL(gc.total)(DISPATCH)
+    |  lw TMP1, DISPATCH_GL(gc.threshold)(DISPATCH)
+    |   sw BASE, L->base
+    |   sw PC, SAVE_PC
+    |  sltu AT, TMP0, TMP1
+    |  beqz AT, >5
+    |1:
+    if (op == BC_TNEW) {
+      |  load_got lj_tab_new
+      |  srl CARG2, RD, 3
+      |  andi CARG2, CARG2, 0x7ff
+      |  li TMP0, 0x801
+      |  addiu AT, CARG2, -0x7ff
+      |   srl CARG3, RD, 14
+      |  movz CARG2, TMP0, AT
+      |  // (lua_State *L, int32_t asize, uint32_t hbits)
+      |  call_intern lj_tab_new
+      |.  move CARG1, L
+      |  // Returns Table *.
+    } else {
+      |  load_got lj_tab_dup
+      |  srl TMP1, RD, 1
+      |  subu TMP1, KBASE, TMP1
+      |  move CARG1, L
+      |  call_intern lj_tab_dup		// (lua_State *L, Table *kt)
+      |.  lw CARG2, -4(TMP1)		// KBASE-4-str_const*4
+      |  // Returns Table *.
+    }
+    |  lw BASE, L->base
+    |  ins_next1
+    |  addu RA, BASE, RA
+    |   li TMP0, LJ_TTAB
+    |  sw TAB:CRET1, LO(RA)
+    |   sw TMP0, HI(RA)
+    |  ins_next2
+    |5:
+    |  load_got lj_gc_step_fixtop
+    |  move MULTRES, RD
+    |  call_intern lj_gc_step_fixtop	// (lua_State *L)
+    |.  move CARG1, L
+    |  b <1
+    |.  move RD, MULTRES
+    break;
+
+  case BC_GGET:
+    |  // RA = dst*8, RD = str_const*8 (~)
+  case BC_GSET:
+    |  // RA = src*8, RD = str_const*8 (~)
+    |  lw LFUNC:TMP2, FRAME_FUNC(BASE)
+    |   srl TMP1, RD, 1
+    |   subu TMP1, KBASE, TMP1
+    |  lw TAB:RB, LFUNC:TMP2->env
+    |  lw STR:RC, -4(TMP1)		// KBASE-4-str_const*4
+    if (op == BC_GGET) {
+      |  b ->BC_TGETS_Z
+    } else {
+      |  b ->BC_TSETS_Z
+    }
+    |.  addu RA, BASE, RA
+    break;
+
+  case BC_TGETV:
+    |  // RA = dst*8, RB = table*8, RC = key*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RDtoRC8 RC, RD
+    |  addu CARG2, BASE, RB
+    |   addu CARG3, BASE, RC
+    |  lw TMP1, HI(CARG2)
+    |   lw TMP2, HI(CARG3)
+    |    lw TAB:RB, LO(CARG2)
+    |  li AT, LJ_TTAB
+    |  bne TMP1, AT, ->vmeta_tgetv
+    |.  addu RA, BASE, RA
+    |  bne TMP2, TISNUM, >5
+    |.  lw RC, LO(CARG3)
+    |  lw TMP0, TAB:RB->asize
+    |   lw TMP1, TAB:RB->array
+    |  sltu AT, RC, TMP0
+    |   sll TMP2, RC, 3
+    |  beqz AT, ->vmeta_tgetv		// Integer key and in array part?
+    |.  addu TMP2, TMP1, TMP2
+    |  lw SFRETHI, HI(TMP2)
+    |  beq SFRETHI, TISNIL, >2
+    |.  lw SFRETLO, LO(TMP2)
+    |1:
+    |  ins_next1
+    |  sw SFRETHI, HI(RA)
+    |   sw SFRETLO, LO(RA)
+    |  ins_next2
+    |
+    |2:  // Check for __index if table value is nil.
+    |  lw TAB:TMP2, TAB:RB->metatable
+    |  beqz TAB:TMP2, <1		// No metatable: done.
+    |.  nop
+    |  lbu TMP0, TAB:TMP2->nomm
+    |  andi TMP0, TMP0, 1<<MM_index
+    |  bnez TMP0, <1			// 'no __index' flag set: done.
+    |.  nop
+    |  b ->vmeta_tgetv
+    |.  nop
+    |
+    |5:
+    |  li AT, LJ_TSTR
+    |  bne TMP2, AT, ->vmeta_tgetv
+    |.  nop
+    |  b ->BC_TGETS_Z			// String key?
+    |.  nop
+    break;
+  case BC_TGETS:
+    |  // RA = dst*8, RB = table*8, RC = str_const*4 (~)
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |  addu CARG2, BASE, RB
+    |   decode_RC4a RC, INS
+    |  lw TMP0, HI(CARG2)
+    |   decode_RC4b RC
+    |  li AT, LJ_TTAB
+    |   lw TAB:RB, LO(CARG2)
+    |   subu CARG3, KBASE, RC
+    |   lw STR:RC, -4(CARG3)		// KBASE-4-str_const*4
+    |  bne TMP0, AT, ->vmeta_tgets1
+    |.  addu RA, BASE, RA
+    |->BC_TGETS_Z:
+    |  // TAB:RB = GCtab *, STR:RC = GCstr *, RA = dst*8
+    |  lw TMP0, TAB:RB->hmask
+    |  lw TMP1, STR:RC->sid
+    |  lw NODE:TMP2, TAB:RB->node
+    |  and TMP1, TMP1, TMP0		// idx = str->sid & tab->hmask
+    |  sll TMP0, TMP1, 5
+    |  sll TMP1, TMP1, 3
+    |  subu TMP1, TMP0, TMP1
+    |  addu NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+    |1:
+    |  lw CARG1, offsetof(Node, key)+HI(NODE:TMP2)
+    |   lw TMP0, offsetof(Node, key)+LO(NODE:TMP2)
+    |    lw NODE:TMP1, NODE:TMP2->next
+    |    lw SFRETHI, offsetof(Node, val)+HI(NODE:TMP2)
+    |  addiu CARG1, CARG1, -LJ_TSTR
+    |   xor TMP0, TMP0, STR:RC
+    |  or AT, CARG1, TMP0
+    |  bnez AT, >4
+    |.  lw TAB:TMP3, TAB:RB->metatable
+    |    beq SFRETHI, TISNIL, >5	// Key found, but nil value?
+    |.    lw SFRETLO, offsetof(Node, val)+LO(NODE:TMP2)
+    |3:
+    |  ins_next1
+    |    sw SFRETHI, HI(RA)
+    |     sw SFRETLO, LO(RA)
+    |  ins_next2
+    |
+    |4:  // Follow hash chain.
+    |  bnez NODE:TMP1, <1
+    |.  move NODE:TMP2, NODE:TMP1
+    |  // End of hash chain: key not found, nil result.
+    |
+    |5:  // Check for __index if table value is nil.
+    |  beqz TAB:TMP3, <3		// No metatable: done.
+    |.  li SFRETHI, LJ_TNIL
+    |  lbu TMP0, TAB:TMP3->nomm
+    |  andi TMP0, TMP0, 1<<MM_index
+    |  bnez TMP0, <3			// 'no __index' flag set: done.
+    |.  nop
+    |  b ->vmeta_tgets
+    |.  nop
+    break;
+  case BC_TGETB:
+    |  // RA = dst*8, RB = table*8, RC = index*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |  addu CARG2, BASE, RB
+    |   decode_RDtoRC8 RC, RD
+    |  lw CARG1, HI(CARG2)
+    |  li AT, LJ_TTAB
+    |   lw TAB:RB, LO(CARG2)
+    |   addu RA, BASE, RA
+    |  bne CARG1, AT, ->vmeta_tgetb
+    |.  srl TMP0, RC, 3
+    |  lw TMP1, TAB:RB->asize
+    |   lw TMP2, TAB:RB->array
+    |  sltu AT, TMP0, TMP1
+    |  beqz AT, ->vmeta_tgetb
+    |.  addu RC, TMP2, RC
+    |  lw SFRETHI, HI(RC)
+    |  beq SFRETHI, TISNIL, >5
+    |.  lw SFRETLO, LO(RC)
+    |1:
+    |  ins_next1
+    |  sw SFRETHI, HI(RA)
+    |   sw SFRETLO, LO(RA)
+    |  ins_next2
+    |
+    |5:  // Check for __index if table value is nil.
+    |  lw TAB:TMP2, TAB:RB->metatable
+    |  beqz TAB:TMP2, <1		// No metatable: done.
+    |.  nop
+    |  lbu TMP1, TAB:TMP2->nomm
+    |  andi TMP1, TMP1, 1<<MM_index
+    |  bnez TMP1, <1			// 'no __index' flag set: done.
+    |.  nop
+    |  b ->vmeta_tgetb			// Caveat: preserve TMP0 and CARG2!
+    |.  nop
+    break;
+  case BC_TGETR:
+    |  // RA = dst*8, RB = table*8, RC = key*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RDtoRC8 RC, RD
+    |  addu RB, BASE, RB
+    |   addu RC, BASE, RC
+    |  lw TAB:CARG1, LO(RB)
+    |   lw CARG2, LO(RC)
+    |    addu RA, BASE, RA
+    |  lw TMP0, TAB:CARG1->asize
+    |   lw TMP1, TAB:CARG1->array
+    |  sltu AT, CARG2, TMP0
+    |   sll TMP2, CARG2, 3
+    |  beqz AT, ->vmeta_tgetr		// In array part?
+    |.  addu CRET1, TMP1, TMP2
+    |  lw SFARG2HI, HI(CRET1)
+    |   lw SFARG2LO, LO(CRET1)
+    |->BC_TGETR_Z:
+    |  ins_next1
+    |  sw SFARG2HI, HI(RA)
+    |   sw SFARG2LO, LO(RA)
+    |  ins_next2
+    break;
+
+  case BC_TSETV:
+    |  // RA = src*8, RB = table*8, RC = key*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RDtoRC8 RC, RD
+    |  addu CARG2, BASE, RB
+    |   addu CARG3, BASE, RC
+    |  lw TMP1, HI(CARG2)
+    |   lw TMP2, HI(CARG3)
+    |    lw TAB:RB, LO(CARG2)
+    |  li AT, LJ_TTAB
+    |  bne TMP1, AT, ->vmeta_tsetv
+    |.  addu RA, BASE, RA
+    |  bne TMP2, TISNUM, >5
+    |.  lw RC, LO(CARG3)
+    |  lw TMP0, TAB:RB->asize
+    |   lw TMP1, TAB:RB->array
+    |  sltu AT, RC, TMP0
+    |   sll TMP2, RC, 3
+    |  beqz AT, ->vmeta_tsetv		// Integer key and in array part?
+    |.  addu TMP1, TMP1, TMP2
+    |  lw TMP0, HI(TMP1)
+    |   lbu TMP3, TAB:RB->marked
+    |  lw SFRETHI, HI(RA)
+    |  beq TMP0, TISNIL, >3
+    |.  lw SFRETLO, LO(RA)
+    |1:
+    |   andi AT, TMP3, LJ_GC_BLACK  // isblack(table)
+    |  sw SFRETHI, HI(TMP1)
+    |  bnez AT, >7
+    |.  sw SFRETLO, LO(TMP1)
+    |2:
+    |  ins_next
+    |
+    |3:  // Check for __newindex if previous value is nil.
+    |  lw TAB:TMP2, TAB:RB->metatable
+    |  beqz TAB:TMP2, <1		// No metatable: done.
+    |.  nop
+    |  lbu TMP2, TAB:TMP2->nomm
+    |  andi TMP2, TMP2, 1<<MM_newindex
+    |  bnez TMP2, <1			// 'no __newindex' flag set: done.
+    |.  nop
+    |  b ->vmeta_tsetv
+    |.  nop
+    |
+    |5:
+    |  li AT, LJ_TSTR
+    |  bne TMP2, AT, ->vmeta_tsetv
+    |.  nop
+    |  b ->BC_TSETS_Z			// String key?
+    |.  nop
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0, <2
+    break;
+  case BC_TSETS:
+    |  // RA = src*8, RB = table*8, RC = str_const*8 (~)
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |  addu CARG2, BASE, RB
+    |   decode_RC4a RC, INS
+    |  lw TMP0, HI(CARG2)
+    |   decode_RC4b RC
+    |  li AT, LJ_TTAB
+    |   subu CARG3, KBASE, RC
+    |    lw TAB:RB, LO(CARG2)
+    |   lw STR:RC, -4(CARG3)		// KBASE-4-str_const*4
+    |  bne TMP0, AT, ->vmeta_tsets1
+    |.  addu RA, BASE, RA
+    |->BC_TSETS_Z:
+    |  // TAB:RB = GCtab *, STR:RC = GCstr *, RA = BASE+src*8
+    |  lw TMP0, TAB:RB->hmask
+    |  lw TMP1, STR:RC->sid
+    |  lw NODE:TMP2, TAB:RB->node
+    |   sb r0, TAB:RB->nomm		// Clear metamethod cache.
+    |  and TMP1, TMP1, TMP0		// idx = str->sid & tab->hmask
+    |  sll TMP0, TMP1, 5
+    |  sll TMP1, TMP1, 3
+    |  subu TMP1, TMP0, TMP1
+    |  addu NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+    |.if FPU
+    |   ldc1 f20, 0(RA)
+    |.else
+    |   lw SFRETHI, HI(RA)
+    |    lw SFRETLO, LO(RA)
+    |.endif
+    |1:
+    |  lw CARG1, offsetof(Node, key)+HI(NODE:TMP2)
+    |   lw TMP0, offsetof(Node, key)+LO(NODE:TMP2)
+    |  li AT, LJ_TSTR
+    |    lw NODE:TMP1, NODE:TMP2->next
+    |  bne CARG1, AT, >5
+    |.   lw CARG2, offsetof(Node, val)+HI(NODE:TMP2)
+    |   bne TMP0, STR:RC, >5
+    |.    lbu TMP3, TAB:RB->marked
+    |    beq CARG2, TISNIL, >4		// Key found, but nil value?
+    |.    lw TAB:TMP0, TAB:RB->metatable
+    |2:
+    |  andi AT, TMP3, LJ_GC_BLACK	// isblack(table)
+    |.if FPU
+    |  bnez AT, >7
+    |.  sdc1 f20, NODE:TMP2->val
+    |.else
+    |   sw SFRETHI, NODE:TMP2->val.u32.hi
+    |  bnez AT, >7
+    |.   sw SFRETLO, NODE:TMP2->val.u32.lo
+    |.endif
+    |3:
+    |  ins_next
+    |
+    |4:  // Check for __newindex if previous value is nil.
+    |  beqz TAB:TMP0, <2		// No metatable: done.
+    |.  nop
+    |  lbu TMP0, TAB:TMP0->nomm
+    |  andi TMP0, TMP0, 1<<MM_newindex
+    |  bnez TMP0, <2			// 'no __newindex' flag set: done.
+    |.  nop
+    |  b ->vmeta_tsets
+    |.  nop
+    |
+    |5:  // Follow hash chain.
+    |  bnez NODE:TMP1, <1
+    |.  move NODE:TMP2, NODE:TMP1
+    |  // End of hash chain: key not found, add a new one
+    |
+    |  // But check for __newindex first.
+    |  lw TAB:TMP2, TAB:RB->metatable
+    |  beqz TAB:TMP2, >6		// No metatable: continue.
+    |.  addiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+    |  lbu TMP0, TAB:TMP2->nomm
+    |  andi TMP0, TMP0, 1<<MM_newindex
+    |  beqz TMP0, ->vmeta_tsets		// 'no __newindex' flag NOT set: check.
+    |.  li AT, LJ_TSTR
+    |6:
+    |  load_got lj_tab_newkey
+    |  sw STR:RC, LO(CARG3)
+    |  sw AT, HI(CARG3)
+    |   sw BASE, L->base
+    |  move CARG2, TAB:RB
+    |   sw PC, SAVE_PC
+    |  call_intern lj_tab_newkey	// (lua_State *L, GCtab *t, TValue *k
+    |.  move CARG1, L
+    |  // Returns TValue *.
+    |  lw BASE, L->base
+    |.if FPU
+    |  b <3				// No 2nd write barrier needed.
+    |.  sdc1 f20, 0(CRET1)
+    |.else
+    |  lw SFARG1HI, HI(RA)
+    |   lw SFARG1LO, LO(RA)
+    |  sw SFARG1HI, HI(CRET1)
+    |  b <3				// No 2nd write barrier needed.
+    |.  sw SFARG1LO, LO(CRET1)
+    |.endif
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0, <3
+    break;
+  case BC_TSETB:
+    |  // RA = src*8, RB = table*8, RC = index*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |  addu CARG2, BASE, RB
+    |   decode_RDtoRC8 RC, RD
+    |  lw CARG1, HI(CARG2)
+    |  li AT, LJ_TTAB
+    |   lw TAB:RB, LO(CARG2)
+    |   addu RA, BASE, RA
+    |  bne CARG1, AT, ->vmeta_tsetb
+    |.  srl TMP0, RC, 3
+    |  lw TMP1, TAB:RB->asize
+    |   lw TMP2, TAB:RB->array
+    |  sltu AT, TMP0, TMP1
+    |  beqz AT, ->vmeta_tsetb
+    |.  addu RC, TMP2, RC
+    |  lw TMP1, HI(RC)
+    |   lbu TMP3, TAB:RB->marked
+    |  beq TMP1, TISNIL, >5
+    |1:
+    |.  lw SFRETHI, HI(RA)
+    |    lw SFRETLO, LO(RA)
+    |  andi AT, TMP3, LJ_GC_BLACK	// isblack(table)
+    |   sw SFRETHI, HI(RC)
+    |  bnez AT, >7
+    |.   sw SFRETLO, LO(RC)
+    |2:
+    |  ins_next
+    |
+    |5:  // Check for __newindex if previous value is nil.
+    |  lw TAB:TMP2, TAB:RB->metatable
+    |  beqz TAB:TMP2, <1		// No metatable: done.
+    |.  nop
+    |  lbu TMP1, TAB:TMP2->nomm
+    |  andi TMP1, TMP1, 1<<MM_newindex
+    |  bnez TMP1, <1			// 'no __newindex' flag set: done.
+    |.  nop
+    |  b ->vmeta_tsetb			// Caveat: preserve TMP0 and CARG2!
+    |.  nop
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0, <2
+    break;
+  case BC_TSETR:
+    |  // RA = dst*8, RB = table*8, RC = key*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RDtoRC8 RC, RD
+    |  addu CARG1, BASE, RB
+    |   addu CARG3, BASE, RC
+    |  lw TAB:CARG2, LO(CARG1)
+    |   lw CARG3, LO(CARG3)
+    |  lbu TMP3, TAB:CARG2->marked
+    |   lw TMP0, TAB:CARG2->asize
+    |    lw TMP1, TAB:CARG2->array
+    |  andi AT, TMP3, LJ_GC_BLACK	// isblack(table)
+    |  bnez AT, >7
+    |.  addu RA, BASE, RA
+    |2:
+    |  sltu AT, CARG3, TMP0
+    |   sll TMP2, CARG3, 3
+    |  beqz AT, ->vmeta_tsetr		// In array part?
+    |.  addu CRET1, TMP1, TMP2
+    |->BC_TSETR_Z:
+    |  lw SFARG1HI, HI(RA)
+    |   lw SFARG1LO, LO(RA)
+    |  ins_next1
+    |  sw SFARG1HI, HI(CRET1)
+    |   sw SFARG1LO, LO(CRET1)
+    |  ins_next2
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, TMP3, CRET1, <2
+    break;
+
+  case BC_TSETM:
+    |  // RA = base*8 (table at base-1), RD = num_const*8 (start index)
+    |  addu RA, BASE, RA
+    |1:
+    |   addu TMP3, KBASE, RD
+    |  lw TAB:CARG2, -8+LO(RA)		// Guaranteed to be a table.
+    |    addiu TMP0, MULTRES, -8
+    |   lw TMP3, LO(TMP3)		// Integer constant is in lo-word.
+    |    beqz TMP0, >4			// Nothing to copy?
+    |.    srl CARG3, TMP0, 3
+    |  addu CARG3, CARG3, TMP3
+    |  lw TMP2, TAB:CARG2->asize
+    |   sll TMP1, TMP3, 3
+    |    lbu TMP3, TAB:CARG2->marked
+    |   lw CARG1, TAB:CARG2->array
+    |  sltu AT, TMP2, CARG3
+    |  bnez AT, >5
+    |.  addu TMP2, RA, TMP0
+    |   addu TMP1, TMP1, CARG1
+    |  andi TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
+    |3:  // Copy result slots to table.
+    |   lw SFRETHI, HI(RA)
+    |    lw SFRETLO, LO(RA)
+    |    addiu RA, RA, 8
+    |  sltu AT, RA, TMP2
+    |   sw SFRETHI, HI(TMP1)
+    |    sw SFRETLO, LO(TMP1)
+    |  bnez AT, <3
+    |.   addiu TMP1, TMP1, 8
+    |  bnez TMP0, >7
+    |. nop
+    |4:
+    |  ins_next
+    |
+    |5:  // Need to resize array part.
+    |  load_got lj_tab_reasize
+    |   sw BASE, L->base
+    |   sw PC, SAVE_PC
+    |  move BASE, RD
+    |  call_intern lj_tab_reasize	// (lua_State *L, GCtab *t, int nasize)
+    |.  move CARG1, L
+    |  // Must not reallocate the stack.
+    |  move RD, BASE
+    |  b <1
+    |.  lw BASE, L->base	// Reload BASE for lack of a saved register.
+    |
+    |7:  // Possible table write barrier for any value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, TMP3, TMP0, <4
+    break;
+
+  /* -- Calls and vararg handling ----------------------------------------- */
+
+  case BC_CALLM:
+    |  // RA = base*8, (RB = (nresults+1)*8,) RC = extra_nargs*8
+    |  decode_RDtoRC8 NARGS8:RC, RD
+    |  b ->BC_CALL_Z
+    |.  addu NARGS8:RC, NARGS8:RC, MULTRES
+    break;
+  case BC_CALL:
+    |  // RA = base*8, (RB = (nresults+1)*8,) RC = (nargs+1)*8
+    |  decode_RDtoRC8 NARGS8:RC, RD
+    |->BC_CALL_Z:
+    |  move TMP2, BASE
+    |  addu BASE, BASE, RA
+    |   li AT, LJ_TFUNC
+    |  lw TMP0, HI(BASE)
+    |   lw LFUNC:RB, LO(BASE)
+    |   addiu BASE, BASE, 8
+    |  bne TMP0, AT, ->vmeta_call
+    |.  addiu NARGS8:RC, NARGS8:RC, -8
+    |  ins_call
+    break;
+
+  case BC_CALLMT:
+    |  // RA = base*8, (RB = 0,) RC = extra_nargs*8
+    |  addu NARGS8:RD, NARGS8:RD, MULTRES	// BC_CALLT gets RC from RD.
+    |  // Fall through. Assumes BC_CALLT follows.
+    break;
+  case BC_CALLT:
+    |  // RA = base*8, (RB = 0,) RC = (nargs+1)*8
+    |  addu RA, BASE, RA
+    |   li AT, LJ_TFUNC
+    |  lw TMP0, HI(RA)
+    |   lw LFUNC:RB, LO(RA)
+    |   move NARGS8:RC, RD
+    |    lw TMP1, FRAME_PC(BASE)
+    |   addiu RA, RA, 8
+    |  bne TMP0, AT, ->vmeta_callt
+    |.  addiu NARGS8:RC, NARGS8:RC, -8
+    |->BC_CALLT_Z:
+    |  andi TMP0, TMP1, FRAME_TYPE	// Caveat: preserve TMP0 until the 'or'.
+    |   lbu TMP3, LFUNC:RB->ffid
+    |  bnez TMP0, >7
+    |.  xori TMP2, TMP1, FRAME_VARG
+    |1:
+    |  sw LFUNC:RB, FRAME_FUNC(BASE)	// Copy function down, but keep PC.
+    |  sltiu AT, TMP3, 2		// (> FF_C) Calling a fast function?
+    |  move TMP2, BASE
+    |  beqz NARGS8:RC, >3
+    |.  move TMP3, NARGS8:RC
+    |2:
+    |   lw SFRETHI, HI(RA)
+    |    lw SFRETLO, LO(RA)
+    |    addiu RA, RA, 8
+    |  addiu TMP3, TMP3, -8
+    |   sw SFRETHI, HI(TMP2)
+    |    sw SFRETLO, LO(TMP2)
+    |  bnez TMP3, <2
+    |.   addiu TMP2, TMP2, 8
+    |3:
+    |  or TMP0, TMP0, AT
+    |  beqz TMP0, >5
+    |.  nop
+    |4:
+    |  ins_callt
+    |
+    |5:  // Tailcall to a fast function with a Lua frame below.
+    |  lw INS, -4(TMP1)
+    |  decode_RA8a RA, INS
+    |  decode_RA8b RA
+    |  subu TMP1, BASE, RA
+    |  lw LFUNC:TMP1, -8+FRAME_FUNC(TMP1)
+    |  lw TMP1, LFUNC:TMP1->pc
+    |  b <4
+    |.  lw KBASE, PC2PROTO(k)(TMP1)	// Need to prepare KBASE.
+    |
+    |7:  // Tailcall from a vararg function.
+    |  andi AT, TMP2, FRAME_TYPEP
+    |  bnez AT, <1			// Vararg frame below?
+    |.  subu TMP2, BASE, TMP2		// Relocate BASE down.
+    |  move BASE, TMP2
+    |  lw TMP1, FRAME_PC(TMP2)
+    |  b <1
+    |.  andi TMP0, TMP1, FRAME_TYPE
+    break;
+
+  case BC_ITERC:
+    |  // RA = base*8, (RB = (nresults+1)*8, RC = (nargs+1)*8 ((2+1)*8))
+    |  move TMP2, BASE
+    |  addu BASE, BASE, RA
+    |   li AT, LJ_TFUNC
+    |  lw TMP1, -24+HI(BASE)
+    |   lw LFUNC:RB, -24+LO(BASE)
+    |    lw SFARG1HI, -16+HI(BASE)
+    |     lw SFARG1LO, -16+LO(BASE)
+    |    lw SFARG2HI, -8+HI(BASE)
+    |     lw SFARG2LO, -8+LO(BASE)
+    |  sw TMP1, HI(BASE)		// Copy callable.
+    |   sw LFUNC:RB, LO(BASE)
+    |    sw SFARG1HI, 8+HI(BASE)	// Copy state.
+    |     sw SFARG1LO, 8+LO(BASE)
+    |    sw SFARG2HI, 16+HI(BASE)	// Copy control var.
+    |     sw SFARG2LO, 16+LO(BASE)
+    |   addiu BASE, BASE, 8
+    |  bne TMP1, AT, ->vmeta_call
+    |.  li NARGS8:RC, 16		// Iterators get 2 arguments.
+    |  ins_call
+    break;
+
+  case BC_ITERN:
+    |.if JIT and ENDIAN_LE
+    |  hotloop
+    |.endif
+    |->vm_IITERN:
+    |  // RA = base*8, (RB = (nresults+1)*8, RC = (nargs+1)*8 (2+1)*8)
+    |  addu RA, BASE, RA
+    |  lw TAB:RB, -16+LO(RA)
+    |  lw RC, -8+LO(RA)			// Get index from control var.
+    |  lw TMP0, TAB:RB->asize
+    |  lw TMP1, TAB:RB->array
+    |   addiu PC, PC, 4
+    |1:  // Traverse array part.
+    |  sltu AT, RC, TMP0
+    |  beqz AT, >5			// Index points after array part?
+    |.  sll TMP3, RC, 3
+    |  addu TMP3, TMP1, TMP3
+    |  lw SFARG1HI, HI(TMP3)
+    |   lw SFARG1LO, LO(TMP3)
+    |     lhu RD, -4+OFS_RD(PC)
+    |  sw TISNUM, HI(RA)
+    |   sw RC, LO(RA)
+    |  beq SFARG1HI, TISNIL, <1		// Skip holes in array part.
+    |.  addiu RC, RC, 1
+    |  sw SFARG1HI, 8+HI(RA)
+    |   sw SFARG1LO, 8+LO(RA)
+    |     lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |     decode_RD4b RD
+    |     addu RD, RD, TMP3
+    |   sw RC, -8+LO(RA)		// Update control var.
+    |     addu PC, PC, RD
+    |3:
+    |  ins_next
+    |
+    |5:  // Traverse hash part.
+    |  lw TMP1, TAB:RB->hmask
+    |  subu RC, RC, TMP0
+    |   lw TMP2, TAB:RB->node
+    |6:
+    |  sltu AT, TMP1, RC		// End of iteration? Branch to ITERL+1.
+    |  bnez AT, <3
+    |.  sll TMP3, RC, 5
+    |   sll RB, RC, 3
+    |   subu TMP3, TMP3, RB
+    |  addu NODE:TMP3, TMP3, TMP2
+    |  lw SFARG1HI, NODE:TMP3->val.u32.hi
+    |   lw SFARG1LO, NODE:TMP3->val.u32.lo
+    |     lhu RD, -4+OFS_RD(PC)
+    |  beq SFARG1HI, TISNIL, <6		// Skip holes in hash part.
+    |.  addiu RC, RC, 1
+    |  lw SFARG2HI, NODE:TMP3->key.u32.hi
+    |   lw SFARG2LO, NODE:TMP3->key.u32.lo
+    |     lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  sw SFARG1HI, 8+HI(RA)
+    |   sw SFARG1LO, 8+LO(RA)
+    |    addu RC, RC, TMP0
+    |     decode_RD4b RD
+    |     addu RD, RD, TMP3
+    |  sw SFARG2HI, HI(RA)
+    |   sw SFARG2LO, LO(RA)
+    |     addu PC, PC, RD
+    |  b <3
+    |.  sw RC, -8+LO(RA)		// Update control var.
+    break;
+
+  case BC_ISNEXT:
+    |  // RA = base*8, RD = target (points to ITERN)
+    |  addu RA, BASE, RA
+    |    srl TMP0, RD, 1
+    |  lw CARG1, -24+HI(RA)
+    |  lw CFUNC:CARG2, -24+LO(RA)
+    |    addu TMP0, PC, TMP0
+    |   lw CARG3, -16+HI(RA)
+    |   lw CARG4, -8+HI(RA)
+    |  li AT, LJ_TFUNC
+    |  bne CARG1, AT, >5
+    |.   lui TMP2, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  lbu CARG2, CFUNC:CARG2->ffid
+    |   addiu CARG3, CARG3, -LJ_TTAB
+    |   addiu CARG4, CARG4, -LJ_TNIL
+    |   or CARG3, CARG3, CARG4
+    |  addiu CARG2, CARG2, -FF_next_N
+    |  or CARG2, CARG2, CARG3
+    |  bnez CARG2, >5
+    |.  lui TMP1, (LJ_KEYINDEX >> 16)
+    |  addu PC, TMP0, TMP2
+    |  ori TMP1, TMP1, (LJ_KEYINDEX & 0xffff)
+    |  sw r0, -8+LO(RA)			// Initialize control var.
+    |  sw TMP1, -8+HI(RA)
+    |1:
+    |  ins_next
+    |5:  // Despecialize bytecode if any of the checks fail.
+    |  li TMP3, BC_JMP
+    |   li TMP1, BC_ITERC
+    |  sb TMP3, -4+OFS_OP(PC)
+    |  addu PC, TMP0, TMP2
+    |.if JIT
+    |  lb TMP0, OFS_OP(PC)
+    |  li AT, BC_ITERN
+    |  bne TMP0, AT, >6
+    |.  lhu TMP2, OFS_RD(PC)
+    |.endif
+    |  b <1
+    |.  sb TMP1, OFS_OP(PC)
+    |.if JIT
+    |6:  // Unpatch JLOOP.
+    |  lw TMP0, DISPATCH_J(trace)(DISPATCH)
+    |   sll TMP2, TMP2, 2
+    |  addu TMP0, TMP0, TMP2
+    |  lw TRACE:TMP2, 0(TMP0)
+    |  lw TMP0, TRACE:TMP2->startins
+    |   li AT, -256
+    |  and TMP0, TMP0, AT
+    |  or TMP0, TMP0, TMP1
+    |  b <1
+    |.  sw TMP0, 0(PC)
+    |.endif
+    break;
+
+  case BC_VARG:
+    |  // RA = base*8, RB = (nresults+1)*8, RC = numparams*8
+    |  lw TMP0, FRAME_PC(BASE)
+    |  decode_RDtoRC8 RC, RD
+    |   decode_RB8a RB, INS
+    |  addu RC, BASE, RC
+    |   decode_RB8b RB
+    |   addu RA, BASE, RA
+    |  addiu RC, RC, FRAME_VARG
+    |   addu TMP2, RA, RB
+    |  addiu TMP3, BASE, -8		// TMP3 = vtop
+    |  subu RC, RC, TMP0		// RC = vbase
+    |  // Note: RC may now be even _above_ BASE if nargs was < numparams.
+    |  beqz RB, >5			// Copy all varargs?
+    |.  subu TMP1, TMP3, RC
+    |  addiu TMP2, TMP2, -16
+    |1:  // Copy vararg slots to destination slots.
+    |  lw CARG1, HI(RC)
+    |  sltu AT, RC, TMP3
+    |   lw CARG2, LO(RC)
+    |    addiu RC, RC, 8
+    |  movz CARG1, TISNIL, AT
+    |  sw CARG1, HI(RA)
+    |   sw CARG2, LO(RA)
+    |  sltu AT, RA, TMP2
+    |  bnez AT, <1
+    |.   addiu RA, RA, 8
+    |3:
+    |  ins_next
+    |
+    |5:  // Copy all varargs.
+    |  lw TMP0, L->maxstack
+    |  blez TMP1, <3			// No vararg slots?
+    |.  li MULTRES, 8			// MULTRES = (0+1)*8
+    |  addu TMP2, RA, TMP1
+    |  sltu AT, TMP0, TMP2
+    |  bnez AT, >7
+    |.  addiu MULTRES, TMP1, 8
+    |6:
+    |  lw SFRETHI, HI(RC)
+    |   lw SFRETLO, LO(RC)
+    |   addiu RC, RC, 8
+    |  sw SFRETHI, HI(RA)
+    |   sw SFRETLO, LO(RA)
+    |  sltu AT, RC, TMP3
+    |  bnez AT, <6			// More vararg slots?
+    |.  addiu RA, RA, 8
+    |  b <3
+    |.  nop
+    |
+    |7:  // Grow stack for varargs.
+    |  load_got lj_state_growstack
+    |   sw RA, L->top
+    |  subu RA, RA, BASE
+    |   sw BASE, L->base
+    |  subu BASE, RC, BASE		// Need delta, because BASE may change.
+    |   sw PC, SAVE_PC
+    |  srl CARG2, TMP1, 3
+    |  call_intern lj_state_growstack	// (lua_State *L, int n)
+    |.  move CARG1, L
+    |  move RC, BASE
+    |  lw BASE, L->base
+    |  addu RA, BASE, RA
+    |  addu RC, BASE, RC
+    |  b <6
+    |.  addiu TMP3, BASE, -8
+    break;
+
+  /* -- Returns ----------------------------------------------------------- */
+
+  case BC_RETM:
+    |  // RA = results*8, RD = extra_nresults*8
+    |  addu RD, RD, MULTRES		// MULTRES >= 8, so RD >= 8.
+    |  // Fall through. Assumes BC_RET follows.
+    break;
+
+  case BC_RET:
+    |  // RA = results*8, RD = (nresults+1)*8
+    |  lw PC, FRAME_PC(BASE)
+    |   addu RA, BASE, RA
+    |    move MULTRES, RD
+    |1:
+    |  andi TMP0, PC, FRAME_TYPE
+    |  bnez TMP0, ->BC_RETV_Z
+    |.  xori TMP1, PC, FRAME_VARG
+    |
+    |->BC_RET_Z:
+    |  // BASE = base, RA = resultptr, RD = (nresults+1)*8, PC = return
+    |   lw INS, -4(PC)
+    |    addiu TMP2, BASE, -8
+    |    addiu RC, RD, -8
+    |  decode_RA8a TMP0, INS
+    |   decode_RB8a RB, INS
+    |  decode_RA8b TMP0
+    |   decode_RB8b RB
+    |   addu TMP3, TMP2, RB
+    |  beqz RC, >3
+    |.  subu BASE, TMP2, TMP0
+    |2:
+    |   lw SFRETHI, HI(RA)
+    |    lw SFRETLO, LO(RA)
+    |    addiu RA, RA, 8
+    |  addiu RC, RC, -8
+    |   sw SFRETHI, HI(TMP2)
+    |    sw SFRETLO, LO(TMP2)
+    |  bnez RC, <2
+    |.   addiu TMP2, TMP2, 8
+    |3:
+    |  addiu TMP3, TMP3, -8
+    |5:
+    |  sltu AT, TMP2, TMP3
+    |  bnez AT, >6
+    |.  lw LFUNC:TMP1, FRAME_FUNC(BASE)
+    |  ins_next1
+    |  lw TMP1, LFUNC:TMP1->pc
+    |  lw KBASE, PC2PROTO(k)(TMP1)
+    |  ins_next2
+    |
+    |6:  // Fill up results with nil.
+    |  sw TISNIL, HI(TMP2)
+    |  b <5
+    |.  addiu TMP2, TMP2, 8
+    |
+    |->BC_RETV_Z:  // Non-standard return case.
+    |  andi TMP2, TMP1, FRAME_TYPEP
+    |  bnez TMP2, ->vm_return
+    |.  nop
+    |  // Return from vararg function: relocate BASE down.
+    |  subu BASE, BASE, TMP1
+    |  b <1
+    |.  lw PC, FRAME_PC(BASE)
+    break;
+
+  case BC_RET0: case BC_RET1:
+    |  // RA = results*8, RD = (nresults+1)*8
+    |  lw PC, FRAME_PC(BASE)
+    |   addu RA, BASE, RA
+    |    move MULTRES, RD
+    |  andi TMP0, PC, FRAME_TYPE
+    |  bnez TMP0, ->BC_RETV_Z
+    |.  xori TMP1, PC, FRAME_VARG
+    |
+    |  lw INS, -4(PC)
+    |   addiu TMP2, BASE, -8
+    if (op == BC_RET1) {
+      |  lw SFRETHI, HI(RA)
+      |   lw SFRETLO, LO(RA)
+    }
+    |  decode_RB8a RB, INS
+    |   decode_RA8a RA, INS
+    |  decode_RB8b RB
+    |   decode_RA8b RA
+    if (op == BC_RET1) {
+      |  sw SFRETHI, HI(TMP2)
+      |   sw SFRETLO, LO(TMP2)
+    }
+    |   subu BASE, TMP2, RA
+    |5:
+    |  sltu AT, RD, RB
+    |  bnez AT, >6
+    |.  lw LFUNC:TMP1, FRAME_FUNC(BASE)
+    |  ins_next1
+    |  lw TMP1, LFUNC:TMP1->pc
+    |  lw KBASE, PC2PROTO(k)(TMP1)
+    |  ins_next2
+    |
+    |6:  // Fill up results with nil.
+    |  addiu TMP2, TMP2, 8
+    |  addiu RD, RD, 8
+    |  b <5
+    if (op == BC_RET1) {
+      |.  sw TISNIL, HI(TMP2)
+    } else {
+      |.  sw TISNIL, -8+HI(TMP2)
+    }
+    break;
+
+  /* -- Loops and branches ------------------------------------------------ */
+
+  case BC_FORL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IFORL follows.
+    break;
+
+  case BC_JFORI:
+  case BC_JFORL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_FORI:
+  case BC_IFORL:
+    |  // RA = base*8, RD = target (after end of loop or start of loop)
+    vk = (op == BC_IFORL || op == BC_JFORL);
+    |  addu RA, BASE, RA
+    |  lw SFARG1HI, FORL_IDX*8+HI(RA)
+    |   lw SFARG1LO, FORL_IDX*8+LO(RA)
+    if (op != BC_JFORL) {
+      |  srl RD, RD, 1
+      |  lui TMP2, (-(BCBIAS_J*4 >> 16) & 65535)
+      |  addu TMP2, RD, TMP2
+    }
+    if (!vk) {
+      |  lw SFARG2HI, FORL_STOP*8+HI(RA)
+      |   lw SFARG2LO, FORL_STOP*8+LO(RA)
+      |  bne SFARG1HI, TISNUM, >5
+      |.  lw SFRETHI, FORL_STEP*8+HI(RA)
+      |  xor AT, SFARG2HI, TISNUM
+      |   lw SFRETLO, FORL_STEP*8+LO(RA)
+      |  xor TMP0, SFRETHI, TISNUM
+      |  or AT, AT, TMP0
+      |  bnez AT, ->vmeta_for
+      |.  slt AT, SFRETLO, r0
+      |  slt CRET1, SFARG2LO, SFARG1LO
+      |  slt TMP1, SFARG1LO, SFARG2LO
+      |  movn CRET1, TMP1, AT
+    } else {
+      |  bne SFARG1HI, TISNUM, >5
+      |.  lw SFARG2LO, FORL_STEP*8+LO(RA)
+      |  lw SFRETLO, FORL_STOP*8+LO(RA)
+      |  move TMP3, SFARG1LO
+      |  addu SFARG1LO, SFARG1LO, SFARG2LO
+      |  xor TMP0, SFARG1LO, TMP3
+      |  xor TMP1, SFARG1LO, SFARG2LO
+      |  and TMP0, TMP0, TMP1
+      |  slt TMP1, SFARG1LO, SFRETLO
+      |  slt CRET1, SFRETLO, SFARG1LO
+      |  slt AT, SFARG2LO, r0
+      |   slt TMP0, TMP0, r0		// ((y^a) & (y^b)) < 0: overflow.
+      |  movn CRET1, TMP1, AT
+      |   or CRET1, CRET1, TMP0
+    }
+    |1:
+    if (op == BC_FORI) {
+      |  movz TMP2, r0, CRET1
+      |  addu PC, PC, TMP2
+    } else if (op == BC_JFORI) {
+      |  addu PC, PC, TMP2
+      |  lhu RD, -4+OFS_RD(PC)
+    } else if (op == BC_IFORL) {
+      |  movn TMP2, r0, CRET1
+      |  addu PC, PC, TMP2
+    }
+    if (vk) {
+      |  sw SFARG1HI, FORL_IDX*8+HI(RA)
+      |   sw SFARG1LO, FORL_IDX*8+LO(RA)
+    }
+    |  ins_next1
+    |  sw SFARG1HI, FORL_EXT*8+HI(RA)
+    |   sw SFARG1LO, FORL_EXT*8+LO(RA)
+    |2:
+    if (op == BC_JFORI) {
+      |  beqz CRET1, =>BC_JLOOP
+      |.  decode_RD8b RD
+    } else if (op == BC_JFORL) {
+      |  beqz CRET1, =>BC_JLOOP
+    }
+    |  ins_next2
+    |
+    |5:  // FP loop.
+    |.if FPU
+    if (!vk) {
+      |  ldc1 f0, FORL_IDX*8(RA)
+      |   ldc1 f2, FORL_STOP*8(RA)
+      |  sltiu TMP0, SFARG1HI, LJ_TISNUM
+      |  sltiu TMP1, SFARG2HI, LJ_TISNUM
+      |  sltiu AT, SFRETHI, LJ_TISNUM
+      |  and TMP0, TMP0, TMP1
+      |  and AT, AT, TMP0
+      |  beqz AT, ->vmeta_for
+      |.  slt TMP3, SFRETHI, r0
+      |  c.ole.d 0, f0, f2
+      |  c.ole.d 1, f2, f0
+      |  li CRET1, 1
+      |  movt CRET1, r0, 0
+      |  movt AT, r0, 1
+      |  b <1
+      |.  movn CRET1, AT, TMP3
+    } else {
+      |  ldc1 f0, FORL_IDX*8(RA)
+      |   ldc1 f4, FORL_STEP*8(RA)
+      |    ldc1 f2, FORL_STOP*8(RA)
+      |   lw SFARG2HI, FORL_STEP*8+HI(RA)
+      |  add.d f0, f0, f4
+      |  c.ole.d 0, f0, f2
+      |  c.ole.d 1, f2, f0
+      |   slt TMP3, SFARG2HI, r0
+      |  li CRET1, 1
+      |  li AT, 1
+      |  movt CRET1, r0, 0
+      |  movt AT, r0, 1
+      |  movn CRET1, AT, TMP3
+      if (op == BC_IFORL) {
+	|  movn TMP2, r0, CRET1
+	|  addu PC, PC, TMP2
+      }
+      |  sdc1 f0, FORL_IDX*8(RA)
+      |  ins_next1
+      |  b <2
+      |.  sdc1 f0, FORL_EXT*8(RA)
+    }
+    |.else
+    if (!vk) {
+      |  sltiu TMP0, SFARG1HI, LJ_TISNUM
+      |  sltiu TMP1, SFARG2HI, LJ_TISNUM
+      |  sltiu AT, SFRETHI, LJ_TISNUM
+      |  and TMP0, TMP0, TMP1
+      |  and AT, AT, TMP0
+      |  beqz AT, ->vmeta_for
+      |.  nop
+      |  bal ->vm_sfcmpolex
+      |.  move TMP3, SFRETHI
+      |  b <1
+      |.  nop
+    } else {
+      |   lw SFARG2HI, FORL_STEP*8+HI(RA)
+      |  load_got __adddf3
+      |  call_extern
+      |.  sw TMP2, ARG5
+      |  lw SFARG2HI, FORL_STOP*8+HI(RA)
+      |   lw SFARG2LO, FORL_STOP*8+LO(RA)
+      |  move SFARG1HI, SFRETHI
+      |   move SFARG1LO, SFRETLO
+      |  bal ->vm_sfcmpolex
+      |.  lw TMP3, FORL_STEP*8+HI(RA)
+      if ( op == BC_JFORL ) {
+	|   lhu RD, -4+OFS_RD(PC)
+	|  lw TMP2, ARG5
+	|  b <1
+	|.  decode_RD8b RD
+      } else {
+	|  b <1
+	|.  lw TMP2, ARG5
+      }
+    }
+    |.endif
+    break;
+
+  case BC_ITERL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IITERL follows.
+    break;
+
+  case BC_JITERL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IITERL:
+    |  // RA = base*8, RD = target
+    |  addu RA, BASE, RA
+    |  lw TMP1, HI(RA)
+    |  beq TMP1, TISNIL, >1		// Stop if iterator returned nil.
+    |.  lw TMP2, LO(RA)
+    if (op == BC_JITERL) {
+      |  sw TMP1, -8+HI(RA)
+      |  b =>BC_JLOOP
+      |.  sw TMP2, -8+LO(RA)
+    } else {
+      |  branch_RD			// Otherwise save control var + branch.
+      |  sw TMP1, -8+HI(RA)
+      |   sw TMP2, -8+LO(RA)
+    }
+    |1:
+    |  ins_next
+    break;
+
+  case BC_LOOP:
+    |  // RA = base*8, RD = target (loop extent)
+    |  // Note: RA/RD is only used by trace recorder to determine scope/extent
+    |  // This opcode does NOT jump, it's only purpose is to detect a hot loop.
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_ILOOP follows.
+    break;
+
+  case BC_ILOOP:
+    |  // RA = base*8, RD = target (loop extent)
+    |  ins_next
+    break;
+
+  case BC_JLOOP:
+    |.if JIT
+    |  // RA = base*8 (ignored), RD = traceno*8
+    |  lw TMP1, DISPATCH_J(trace)(DISPATCH)
+    |  srl RD, RD, 1
+    |   li AT, 0
+    |  addu TMP1, TMP1, RD
+    |  // Traces on MIPS don't store the trace number, so use 0.
+    |   sw AT, DISPATCH_GL(vmstate)(DISPATCH)
+    |  lw TRACE:TMP2, 0(TMP1)
+    |   sw BASE, DISPATCH_GL(jit_base)(DISPATCH)
+    |  lw TMP2, TRACE:TMP2->mcode
+    |   sw L, DISPATCH_GL(tmpbuf.L)(DISPATCH)
+    |  jr TMP2
+    |.  addiu JGL, DISPATCH, GG_DISP2G+32768
+    |.endif
+    break;
+
+  case BC_JMP:
+    |  // RA = base*8 (only used by trace recorder), RD = target
+    |  branch_RD
+    |  ins_next
+    break;
+
+  /* -- Function headers -------------------------------------------------- */
+
+  case BC_FUNCF:
+    |.if JIT
+    |  hotcall
+    |.endif
+  case BC_FUNCV:  /* NYI: compiled vararg functions. */
+    |  // Fall through. Assumes BC_IFUNCF/BC_IFUNCV follow.
+    break;
+
+  case BC_JFUNCF:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IFUNCF:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = LFUNC, RC = nargs*8
+    |  lw TMP2, L->maxstack
+    |   lbu TMP1, -4+PC2PROTO(numparams)(PC)
+    |    lw KBASE, -4+PC2PROTO(k)(PC)
+    |  sltu AT, TMP2, RA
+    |  bnez AT, ->vm_growstack_l
+    |.  sll TMP1, TMP1, 3
+    if (op != BC_JFUNCF) {
+      |  ins_next1
+    }
+    |2:
+    |  sltu AT, NARGS8:RC, TMP1		// Check for missing parameters.
+    |  bnez AT, >3
+    |.  addu AT, BASE, NARGS8:RC
+    if (op == BC_JFUNCF) {
+      |  decode_RD8a RD, INS
+      |  b =>BC_JLOOP
+      |.  decode_RD8b RD
+    } else {
+      |  ins_next2
+    }
+    |
+    |3:  // Clear missing parameters.
+    |  sw TISNIL, HI(AT)
+    |  b <2
+    |.  addiu NARGS8:RC, NARGS8:RC, 8
+    break;
+
+  case BC_JFUNCV:
+#if !LJ_HASJIT
+    break;
+#endif
+    |  NYI  // NYI: compiled vararg functions
+    break;  /* NYI: compiled vararg functions. */
+
+  case BC_IFUNCV:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = LFUNC, RC = nargs*8
+    |   addu TMP1, BASE, RC
+    |  lw TMP2, L->maxstack
+    |  addu TMP0, RA, RC
+    |   sw LFUNC:RB, LO(TMP1)		// Store copy of LFUNC.
+    |   addiu TMP3, RC, 8+FRAME_VARG
+    |  sltu AT, TMP0, TMP2
+    |    lw KBASE, -4+PC2PROTO(k)(PC)
+    |  beqz AT, ->vm_growstack_l
+    |.  sw TMP3, HI(TMP1)		// Store delta + FRAME_VARG.
+    |  lbu TMP2, -4+PC2PROTO(numparams)(PC)
+    |   move RA, BASE
+    |   move RC, TMP1
+    |  ins_next1
+    |  beqz TMP2, >3
+    |.  addiu BASE, TMP1, 8
+    |1:
+    |  lw TMP0, HI(RA)
+    |   lw TMP3, LO(RA)
+    |  sltu AT, RA, RC			// Less args than parameters?
+    |  move CARG1, TMP0
+    |  movz TMP0, TISNIL, AT		// Clear missing parameters.
+    |  movn CARG1, TISNIL, AT		// Clear old fixarg slot (help the GC).
+    |   sw TMP3, 8+LO(TMP1)
+    |    addiu TMP2, TMP2, -1
+    |  sw TMP0, 8+HI(TMP1)
+    |    addiu TMP1, TMP1, 8
+    |  sw CARG1, HI(RA)
+    |  bnez TMP2, <1
+    |.   addiu RA, RA, 8
+    |3:
+    |  ins_next2
+    break;
+
+  case BC_FUNCC:
+  case BC_FUNCCW:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = CFUNC, RC = nargs*8
+    if (op == BC_FUNCC) {
+      |  lw CFUNCADDR, CFUNC:RB->f
+    } else {
+      |  lw CFUNCADDR, DISPATCH_GL(wrapf)(DISPATCH)
+    }
+    |  addu TMP1, RA, NARGS8:RC
+    |  lw TMP2, L->maxstack
+    |   addu RC, BASE, NARGS8:RC
+    |  sw BASE, L->base
+    |  sltu AT, TMP2, TMP1
+    |   sw RC, L->top
+    |    li_vmstate C
+    if (op == BC_FUNCCW) {
+      |  lw CARG2, CFUNC:RB->f
+    }
+    |  bnez AT, ->vm_growstack_c	// Need to grow stack.
+    |.  move CARG1, L
+    |  jalr CFUNCADDR			// (lua_State *L [, lua_CFunction f])
+    |.   st_vmstate
+    |  // Returns nresults.
+    |  lw BASE, L->base
+    |   sll RD, CRET1, 3
+    |  lw TMP1, L->top
+    |    li_vmstate INTERP
+    |  lw PC, FRAME_PC(BASE)		// Fetch PC of caller.
+    |   subu RA, TMP1, RD		// RA = L->top - nresults*8
+    |    sw L, DISPATCH_GL(cur_L)(DISPATCH)
+    |  b ->vm_returnc
+    |.   st_vmstate
+    break;
+
+  /* ---------------------------------------------------------------------- */
+
+  default:
+    fprintf(stderr, "Error: undefined opcode BC_%s\n", bc_names[op]);
+    exit(2);
+    break;
+  }
+}
+
+static int build_backend(BuildCtx *ctx)
+{
+  int op;
+
+  dasm_growpc(Dst, BC__MAX);
+
+  build_subroutines(ctx);
+
+  |.code_op
+  for (op = 0; op < BC__MAX; op++)
+    build_ins(ctx, (BCOp)op, op);
+
+  return BC__MAX;
+}
+
+/* Emit pseudo frame-info for all assembler functions. */
+static void emit_asm_debug(BuildCtx *ctx)
+{
+  int fcofs = (int)((uint8_t *)ctx->glob[GLOB_vm_ffi_call] - ctx->code);
+  int i;
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+    fprintf(ctx->fp, "\t.section .debug_frame,\"\",@progbits\n");
+    fprintf(ctx->fp,
+	".Lframe0:\n"
+	"\t.4byte .LECIE0-.LSCIE0\n"
+	".LSCIE0:\n"
+	"\t.4byte 0xffffffff\n"
+	"\t.byte 0x1\n"
+	"\t.string \"\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 31\n"
+	"\t.byte 0xc\n\t.uleb128 29\n\t.uleb128 0\n"
+	"\t.align 2\n"
+	".LECIE0:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE0:\n"
+	"\t.4byte .LEFDE0-.LASFDE0\n"
+	".LASFDE0:\n"
+	"\t.4byte .Lframe0\n"
+	"\t.4byte .Lbegin\n"
+	"\t.4byte %d\n"
+	"\t.byte 0xe\n\t.uleb128 %d\n"
+	"\t.byte 0x9f\n\t.sleb128 1\n"
+	"\t.byte 0x9e\n\t.sleb128 2\n",
+	fcofs, CFRAME_SIZE);
+    for (i = 23; i >= 16; i--)
+      fprintf(ctx->fp, "\t.byte %d\n\t.uleb128 %d\n", 0x80+i, 26-i);
+#if !LJ_SOFTFP
+    for (i = 30; i >= 20; i -= 2)
+      fprintf(ctx->fp, "\t.byte %d\n\t.uleb128 %d\n", 0x80+32+i, 42-i);
+#endif
+    fprintf(ctx->fp,
+	"\t.align 2\n"
+	".LEFDE0:\n\n");
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".LSFDE1:\n"
+	"\t.4byte .LEFDE1-.LASFDE1\n"
+	".LASFDE1:\n"
+	"\t.4byte .Lframe0\n"
+	"\t.4byte lj_vm_ffi_call\n"
+	"\t.4byte %d\n"
+	"\t.byte 0x9f\n\t.uleb128 1\n"
+	"\t.byte 0x90\n\t.uleb128 2\n"
+	"\t.byte 0xd\n\t.uleb128 0x10\n"
+	"\t.align 2\n"
+	".LEFDE1:\n\n", (int)ctx->codesz - fcofs);
+#endif
+#if !LJ_NO_UNWIND
+    fprintf(ctx->fp, "\t.section .eh_frame,\"aw\",@progbits\n");
+    fprintf(ctx->fp,
+	"\t.globl lj_err_unwind_dwarf\n"
+	".Lframe1:\n"
+	"\t.4byte .LECIE1-.LSCIE1\n"
+	".LSCIE1:\n"
+	"\t.4byte 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zPR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 31\n"
+	"\t.uleb128 6\n"			/* augmentation length */
+	"\t.byte 0\n"
+	"\t.4byte lj_err_unwind_dwarf\n"
+	"\t.byte 0\n"
+	"\t.byte 0xc\n\t.uleb128 29\n\t.uleb128 0\n"
+	"\t.align 2\n"
+	".LECIE1:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE2:\n"
+	"\t.4byte .LEFDE2-.LASFDE2\n"
+	".LASFDE2:\n"
+	"\t.4byte .LASFDE2-.Lframe1\n"
+	"\t.4byte .Lbegin\n"
+	"\t.4byte %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0xe\n\t.uleb128 %d\n"
+	"\t.byte 0x9f\n\t.sleb128 1\n"
+	"\t.byte 0x9e\n\t.sleb128 2\n",
+	fcofs, CFRAME_SIZE);
+    for (i = 23; i >= 16; i--)
+      fprintf(ctx->fp, "\t.byte %d\n\t.uleb128 %d\n", 0x80+i, 26-i);
+#if !LJ_SOFTFP
+    for (i = 30; i >= 20; i -= 2)
+      fprintf(ctx->fp, "\t.byte %d\n\t.uleb128 %d\n", 0x80+32+i, 42-i);
+#endif
+    fprintf(ctx->fp,
+	"\t.align 2\n"
+	".LEFDE2:\n\n");
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".Lframe2:\n"
+	"\t.4byte .LECIE2-.LSCIE2\n"
+	".LSCIE2:\n"
+	"\t.4byte 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 31\n"
+	"\t.uleb128 1\n"			/* augmentation length */
+	"\t.byte 0\n"
+	"\t.byte 0xc\n\t.uleb128 29\n\t.uleb128 0\n"
+	"\t.align 2\n"
+	".LECIE2:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE3:\n"
+	"\t.4byte .LEFDE3-.LASFDE3\n"
+	".LASFDE3:\n"
+	"\t.4byte .LASFDE3-.Lframe2\n"
+	"\t.4byte lj_vm_ffi_call\n"
+	"\t.4byte %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0x9f\n\t.uleb128 1\n"
+	"\t.byte 0x90\n\t.uleb128 2\n"
+	"\t.byte 0xd\n\t.uleb128 0x10\n"
+	"\t.align 2\n"
+	".LEFDE3:\n\n", (int)ctx->codesz - fcofs);
+#endif
+#endif
+    break;
+  default:
+    break;
+  }
+}
+
diff --git a/libs/luajit-cmake/luajit/src/vm_mips64.dasc b/libs/luajit-cmake/luajit/src/vm_mips64.dasc
new file mode 100644
index 0000000..651bc42
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/vm_mips64.dasc
@@ -0,0 +1,5538 @@
+|// Low-level VM code for MIPS64 CPUs.
+|// Bytecode interpreter, fast functions and helper functions.
+|// Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+|//
+|// Contributed by Djordje Kovacevic and Stefan Pejic from RT-RK.com.
+|// Sponsored by Cisco Systems, Inc.
+|
+|.arch mips64
+|.section code_op, code_sub
+|
+|.actionlist build_actionlist
+|.globals GLOB_
+|.globalnames globnames
+|.externnames extnames
+|
+|// Note: The ragged indentation of the instructions is intentional.
+|//       The starting columns indicate data dependencies.
+|
+|//-----------------------------------------------------------------------
+|
+|// Fixed register assignments for the interpreter.
+|// Don't use: r0 = 0, r26/r27 = reserved, r28 = gp, r29 = sp, r31 = ra
+|
+|.macro .FPU, a, b
+|.if FPU
+|  a, b
+|.endif
+|.endmacro
+|
+|// The following must be C callee-save (but BASE is often refetched).
+|.define BASE,		r16	// Base of current Lua stack frame.
+|.define KBASE,		r17	// Constants of current Lua function.
+|.define PC,		r18	// Next PC.
+|.define DISPATCH,	r19	// Opcode dispatch table.
+|.define LREG,		r20	// Register holding lua_State (also in SAVE_L).
+|.define MULTRES,	r21	// Size of multi-result: (nresults+1)*8.
+|
+|.define JGL,		r30	// On-trace: global_State + 32768.
+|
+|// Constants for type-comparisons, stores and conversions. C callee-save.
+|.define TISNIL,	r30
+|.define TISNUM,	r22
+|.if FPU
+|.define TOBIT,		f30	// 2^52 + 2^51.
+|.endif
+|
+|// The following temporaries are not saved across C calls, except for RA.
+|.define RA,		r23	// Callee-save.
+|.define RB,		r8
+|.define RC,		r9
+|.define RD,		r10
+|.define INS,		r11
+|
+|.define AT,		r1	// Assembler temporary.
+|.define TMP0,		r12
+|.define TMP1,		r13
+|.define TMP2,		r14
+|.define TMP3,		r15
+|
+|// MIPS n64 calling convention.
+|.define CFUNCADDR,	r25
+|.define CARG1,		r4
+|.define CARG2,		r5
+|.define CARG3,		r6
+|.define CARG4,		r7
+|.define CARG5,		r8
+|.define CARG6,		r9
+|.define CARG7,		r10
+|.define CARG8,		r11
+|
+|.define CRET1,		r2
+|.define CRET2,		r3
+|
+|.if FPU
+|.define FARG1,		f12
+|.define FARG2,		f13
+|.define FARG3,		f14
+|.define FARG4,		f15
+|.define FARG5,		f16
+|.define FARG6,		f17
+|.define FARG7,		f18
+|.define FARG8,		f19
+|
+|.define FRET1,		f0
+|.define FRET2,		f2
+|
+|.define FTMP0,		f20
+|.define FTMP1,		f21
+|.define FTMP2,		f22
+|.endif
+|
+|// Stack layout while in interpreter. Must match with lj_frame.h.
+|.if FPU		// MIPS64 hard-float.
+|
+|.define CFRAME_SPACE,	192	// Delta for sp.
+|
+|//----- 16 byte aligned, <-- sp entering interpreter
+|.define SAVE_ERRF,	188(sp)	// 32 bit values.
+|.define SAVE_NRES,	184(sp)
+|.define SAVE_CFRAME,	176(sp)	// 64 bit values.
+|.define SAVE_L,	168(sp)
+|.define SAVE_PC,	160(sp)
+|//----- 16 byte aligned
+|.define SAVE_GPR_,	80	// .. 80+10*8: 64 bit GPR saves.
+|.define SAVE_FPR_,	16	// .. 16+8*8: 64 bit FPR saves.
+|
+|.else			// MIPS64 soft-float
+|
+|.define CFRAME_SPACE,	128	// Delta for sp.
+|
+|//----- 16 byte aligned, <-- sp entering interpreter
+|.define SAVE_ERRF,	124(sp)	// 32 bit values.
+|.define SAVE_NRES,	120(sp)
+|.define SAVE_CFRAME,	112(sp)	// 64 bit values.
+|.define SAVE_L,	104(sp)
+|.define SAVE_PC,	96(sp)
+|//----- 16 byte aligned
+|.define SAVE_GPR_,	16	// .. 16+10*8: 64 bit GPR saves.
+|
+|.endif
+|
+|.define TMPX,		8(sp)	// Unused by interpreter, temp for JIT code.
+|.define TMPD,		0(sp)
+|//----- 16 byte aligned
+|
+|.define TMPD_OFS,	0
+|
+|.define SAVE_MULTRES,	TMPD
+|
+|//-----------------------------------------------------------------------
+|
+|.macro saveregs
+|  daddiu sp, sp, -CFRAME_SPACE
+|  sd ra, SAVE_GPR_+9*8(sp)
+|  sd r30, SAVE_GPR_+8*8(sp)
+|   .FPU sdc1 f31, SAVE_FPR_+7*8(sp)
+|  sd r23, SAVE_GPR_+7*8(sp)
+|   .FPU sdc1 f30, SAVE_FPR_+6*8(sp)
+|  sd r22, SAVE_GPR_+6*8(sp)
+|   .FPU sdc1 f29, SAVE_FPR_+5*8(sp)
+|  sd r21, SAVE_GPR_+5*8(sp)
+|   .FPU sdc1 f28, SAVE_FPR_+4*8(sp)
+|  sd r20, SAVE_GPR_+4*8(sp)
+|   .FPU sdc1 f27, SAVE_FPR_+3*8(sp)
+|  sd r19, SAVE_GPR_+3*8(sp)
+|   .FPU sdc1 f26, SAVE_FPR_+2*8(sp)
+|  sd r18, SAVE_GPR_+2*8(sp)
+|   .FPU sdc1 f25, SAVE_FPR_+1*8(sp)
+|  sd r17, SAVE_GPR_+1*8(sp)
+|   .FPU sdc1 f24, SAVE_FPR_+0*8(sp)
+|  sd r16, SAVE_GPR_+0*8(sp)
+|.endmacro
+|
+|.macro restoreregs_ret
+|  ld ra, SAVE_GPR_+9*8(sp)
+|  ld r30, SAVE_GPR_+8*8(sp)
+|  ld r23, SAVE_GPR_+7*8(sp)
+|   .FPU ldc1 f31, SAVE_FPR_+7*8(sp)
+|  ld r22, SAVE_GPR_+6*8(sp)
+|   .FPU ldc1 f30, SAVE_FPR_+6*8(sp)
+|  ld r21, SAVE_GPR_+5*8(sp)
+|   .FPU ldc1 f29, SAVE_FPR_+5*8(sp)
+|  ld r20, SAVE_GPR_+4*8(sp)
+|   .FPU ldc1 f28, SAVE_FPR_+4*8(sp)
+|  ld r19, SAVE_GPR_+3*8(sp)
+|   .FPU ldc1 f27, SAVE_FPR_+3*8(sp)
+|  ld r18, SAVE_GPR_+2*8(sp)
+|   .FPU ldc1 f26, SAVE_FPR_+2*8(sp)
+|  ld r17, SAVE_GPR_+1*8(sp)
+|   .FPU ldc1 f25, SAVE_FPR_+1*8(sp)
+|  ld r16, SAVE_GPR_+0*8(sp)
+|   .FPU ldc1 f24, SAVE_FPR_+0*8(sp)
+|  jr ra
+|  daddiu sp, sp, CFRAME_SPACE
+|.endmacro
+|
+|// Type definitions. Some of these are only used for documentation.
+|.type L,		lua_State,	LREG
+|.type GL,		global_State
+|.type TVALUE,		TValue
+|.type GCOBJ,		GCobj
+|.type STR,		GCstr
+|.type TAB,		GCtab
+|.type LFUNC,		GCfuncL
+|.type CFUNC,		GCfuncC
+|.type PROTO,		GCproto
+|.type UPVAL,		GCupval
+|.type NODE,		Node
+|.type NARGS8,		int
+|.type TRACE,		GCtrace
+|.type SBUF,		SBuf
+|
+|//-----------------------------------------------------------------------
+|
+|// Trap for not-yet-implemented parts.
+|.macro NYI; .long 0xec1cf0f0; .endmacro
+|
+|// Macros to mark delay slots.
+|.macro ., a; a; .endmacro
+|.macro ., a,b; a,b; .endmacro
+|.macro ., a,b,c; a,b,c; .endmacro
+|.macro ., a,b,c,d; a,b,c,d; .endmacro
+|
+|.define FRAME_PC,	-8
+|.define FRAME_FUNC,	-16
+|
+|//-----------------------------------------------------------------------
+|
+|// Endian-specific defines.
+|.if ENDIAN_LE
+|.define HI,		4
+|.define LO,		0
+|.define OFS_RD,	2
+|.define OFS_RA,	1
+|.define OFS_OP,	0
+|.else
+|.define HI,		0
+|.define LO,		4
+|.define OFS_RD,	0
+|.define OFS_RA,	2
+|.define OFS_OP,	3
+|.endif
+|
+|// Instruction decode.
+|.macro decode_OP1, dst, ins; andi dst, ins, 0xff; .endmacro
+|.macro decode_OP8a, dst, ins; andi dst, ins, 0xff; .endmacro
+|.macro decode_OP8b, dst; sll dst, dst, 3; .endmacro
+|.macro decode_RC8a, dst, ins; srl dst, ins, 13; .endmacro
+|.macro decode_RC8b, dst; andi dst, dst, 0x7f8; .endmacro
+|.macro decode_RD4b, dst; sll dst, dst, 2; .endmacro
+|.macro decode_RA8a, dst, ins; srl dst, ins, 5; .endmacro
+|.macro decode_RA8b, dst; andi dst, dst, 0x7f8; .endmacro
+|.macro decode_RB8a, dst, ins; srl dst, ins, 21; .endmacro
+|.macro decode_RB8b, dst; andi dst, dst, 0x7f8; .endmacro
+|.macro decode_RD8a, dst, ins; srl dst, ins, 16; .endmacro
+|.macro decode_RD8b, dst; sll dst, dst, 3; .endmacro
+|.macro decode_RDtoRC8, dst, src; andi dst, src, 0x7f8; .endmacro
+|
+|// Instruction fetch.
+|.macro ins_NEXT1
+|  lw INS, 0(PC)
+|   daddiu PC, PC, 4
+|.endmacro
+|// Instruction decode+dispatch.
+|.macro ins_NEXT2
+|  decode_OP8a TMP1, INS
+|  decode_OP8b TMP1
+|  daddu TMP0, DISPATCH, TMP1
+|   decode_RD8a RD, INS
+|  ld AT, 0(TMP0)
+|   decode_RA8a RA, INS
+|   decode_RD8b RD
+|  jr AT
+|   decode_RA8b RA
+|.endmacro
+|.macro ins_NEXT
+|  ins_NEXT1
+|  ins_NEXT2
+|.endmacro
+|
+|// Instruction footer.
+|.if 1
+|  // Replicated dispatch. Less unpredictable branches, but higher I-Cache use.
+|  .define ins_next, ins_NEXT
+|  .define ins_next_, ins_NEXT
+|  .define ins_next1, ins_NEXT1
+|  .define ins_next2, ins_NEXT2
+|.else
+|  // Common dispatch. Lower I-Cache use, only one (very) unpredictable branch.
+|  // Affects only certain kinds of benchmarks (and only with -j off).
+|  .macro ins_next
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next1
+|  .endmacro
+|  .macro ins_next2
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next_
+|  ->ins_next:
+|    ins_NEXT
+|  .endmacro
+|.endif
+|
+|// Call decode and dispatch.
+|.macro ins_callt
+|  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+|  ld PC, LFUNC:RB->pc
+|  lw INS, 0(PC)
+|   daddiu PC, PC, 4
+|  decode_OP8a TMP1, INS
+|   decode_RA8a RA, INS
+|  decode_OP8b TMP1
+|   decode_RA8b RA
+|  daddu TMP0, DISPATCH, TMP1
+|  ld TMP0, 0(TMP0)
+|  jr TMP0
+|   daddu RA, RA, BASE
+|.endmacro
+|
+|.macro ins_call
+|  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, PC = caller PC
+|  sd PC, FRAME_PC(BASE)
+|  ins_callt
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|.macro branch_RD
+|  srl TMP0, RD, 1
+|  lui AT, (-(BCBIAS_J*4 >> 16) & 65535)
+|  addu TMP0, TMP0, AT
+|  daddu PC, PC, TMP0
+|.endmacro
+|
+|// Assumes DISPATCH is relative to GL.
+#define DISPATCH_GL(field)	(GG_DISP2G + (int)offsetof(global_State, field))
+#define DISPATCH_J(field)	(GG_DISP2J + (int)offsetof(jit_State, field))
+#define GG_DISP2GOT		(GG_OFS(got) - GG_OFS(dispatch))
+#define DISPATCH_GOT(name)	(GG_DISP2GOT + sizeof(void*)*LJ_GOT_##name)
+|
+#define PC2PROTO(field)  ((int)offsetof(GCproto, field)-(int)sizeof(GCproto))
+|
+|.macro load_got, func
+|  ld CFUNCADDR, DISPATCH_GOT(func)(DISPATCH)
+|.endmacro
+|// Much faster. Sadly, there's no easy way to force the required code layout.
+|// .macro call_intern, func; bal extern func; .endmacro
+|.macro call_intern, func; jalr CFUNCADDR; .endmacro
+|.macro call_extern; jalr CFUNCADDR; .endmacro
+|.macro jmp_extern; jr CFUNCADDR; .endmacro
+|
+|.macro hotcheck, delta, target
+|  dsrl TMP1, PC, 1
+|  andi TMP1, TMP1, 126
+|  daddu TMP1, TMP1, DISPATCH
+|  lhu TMP2, GG_DISP2HOT(TMP1)
+|  addiu TMP2, TMP2, -delta
+|  bltz TMP2, target
+|.  sh TMP2, GG_DISP2HOT(TMP1)
+|.endmacro
+|
+|.macro hotloop
+|  hotcheck HOTCOUNT_LOOP, ->vm_hotloop
+|.endmacro
+|
+|.macro hotcall
+|  hotcheck HOTCOUNT_CALL, ->vm_hotcall
+|.endmacro
+|
+|// Set current VM state. Uses TMP0.
+|.macro li_vmstate, st; li TMP0, ~LJ_VMST_..st; .endmacro
+|.macro st_vmstate; sw TMP0, DISPATCH_GL(vmstate)(DISPATCH); .endmacro
+|
+|// Move table write barrier back. Overwrites mark and tmp.
+|.macro barrierback, tab, mark, tmp, target
+|  ld tmp, DISPATCH_GL(gc.grayagain)(DISPATCH)
+|   andi mark, mark, ~LJ_GC_BLACK & 255		// black2gray(tab)
+|  sd tab, DISPATCH_GL(gc.grayagain)(DISPATCH)
+|   sb mark, tab->marked
+|  b target
+|.  sd tmp, tab->gclist
+|.endmacro
+|
+|// Clear type tag. Isolate lowest 14+32+1=47 bits of reg.
+|.macro cleartp, reg; dextm reg, reg, 0, 14; .endmacro
+|.macro cleartp, dst, reg; dextm dst, reg, 0, 14; .endmacro
+|
+|// Set type tag: Merge 17 type bits into bits [15+32=47, 31+32+1=64) of dst.
+|.macro settp, dst, tp; dinsu dst, tp, 15, 31; .endmacro
+|
+|// Extract (negative) type tag.
+|.macro gettp, dst, src; dsra dst, src, 47; .endmacro
+|
+|// Macros to check the TValue type and extract the GCobj. Branch on failure.
+|.macro checktp, reg, tp, target
+|  gettp AT, reg
+|  daddiu AT, AT, tp
+|  bnez AT, target
+|.  cleartp reg
+|.endmacro
+|.macro checktp, dst, reg, tp, target
+|  gettp AT, reg
+|  daddiu AT, AT, tp
+|  bnez AT, target
+|.  cleartp dst, reg
+|.endmacro
+|.macro checkstr, reg, target; checktp reg, -LJ_TSTR, target; .endmacro
+|.macro checktab, reg, target; checktp reg, -LJ_TTAB, target; .endmacro
+|.macro checkfunc, reg, target; checktp reg, -LJ_TFUNC, target; .endmacro
+|.macro checkint, reg, target	// Caveat: has delay slot!
+|  gettp AT, reg
+|  bne AT, TISNUM, target
+|.endmacro
+|.macro checknum, reg, target	// Caveat: has delay slot!
+|  gettp AT, reg
+|  sltiu AT, AT, LJ_TISNUM
+|  beqz AT, target
+|.endmacro
+|
+|.macro mov_false, reg
+|  lu reg, 0x8000
+|  dsll reg, reg, 32
+|  not reg, reg
+|.endmacro
+|.macro mov_true, reg
+|  li reg, 0x0001
+|  dsll reg, reg, 48
+|  not reg, reg
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+
+/* Generate subroutines used by opcodes and other parts of the VM. */
+/* The .code_sub section should be last to help static branch prediction. */
+static void build_subroutines(BuildCtx *ctx)
+{
+  |.code_sub
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Return handling ----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_returnp:
+  |  // See vm_return. Also: TMP2 = previous base.
+  |  andi AT, PC, FRAME_P
+  |  beqz AT, ->cont_dispatch
+  |
+  |  // Return from pcall or xpcall fast func.
+  |.  mov_true TMP1
+  |  ld PC, FRAME_PC(TMP2)		// Fetch PC of previous frame.
+  |  move BASE, TMP2			// Restore caller base.
+  |  // Prepending may overwrite the pcall frame, so do it at the end.
+  |   sd TMP1, -8(RA)			// Prepend true to results.
+  |   daddiu RA, RA, -8
+  |
+  |->vm_returnc:
+  |   addiu RD, RD, 8			// RD = (nresults+1)*8.
+  |  andi TMP0, PC, FRAME_TYPE
+  |   beqz RD, ->vm_unwind_c_eh
+  |.   li CRET1, LUA_YIELD
+  |  beqz TMP0, ->BC_RET_Z		// Handle regular return to Lua.
+  |.  move MULTRES, RD
+  |
+  |->vm_return:
+  |  // BASE = base, RA = resultptr, RD/MULTRES = (nresults+1)*8, PC = return
+  |  // TMP0 = PC & FRAME_TYPE
+  |   li TMP2, -8
+  |  xori AT, TMP0, FRAME_C
+  |   and TMP2, PC, TMP2
+  |  bnez AT, ->vm_returnp
+  |   dsubu TMP2, BASE, TMP2		// TMP2 = previous base.
+  |
+  |  addiu TMP1, RD, -8
+  |   sd TMP2, L->base
+  |    li_vmstate C
+  |   lw TMP2, SAVE_NRES
+  |   daddiu BASE, BASE, -16
+  |    st_vmstate
+  |  beqz TMP1, >2
+  |.   sll TMP2, TMP2, 3
+  |1:
+  |  addiu TMP1, TMP1, -8
+  |   ld CRET1, 0(RA)
+  |    daddiu RA, RA, 8
+  |   sd CRET1, 0(BASE)
+  |  bnez TMP1, <1
+  |.  daddiu BASE, BASE, 8
+  |
+  |2:
+  |  bne TMP2, RD, >6
+  |3:
+  |.  sd BASE, L->top			// Store new top.
+  |
+  |->vm_leave_cp:
+  |  ld TMP0, SAVE_CFRAME		// Restore previous C frame.
+  |   move CRET1, r0			// Ok return status for vm_pcall.
+  |  sd TMP0, L->cframe
+  |
+  |->vm_leave_unw:
+  |  restoreregs_ret
+  |
+  |6:
+  |  ld TMP1, L->maxstack
+  |  slt AT, TMP2, RD
+  |  bnez AT, >7			// Less results wanted?
+  |  // More results wanted. Check stack size and fill up results with nil.
+  |.  slt AT, BASE, TMP1
+  |  beqz AT, >8
+  |.  nop
+  |  sd TISNIL, 0(BASE)
+  |  addiu RD, RD, 8
+  |  b <2
+  |.  daddiu BASE, BASE, 8
+  |
+  |7:  // Less results wanted.
+  |  subu TMP0, RD, TMP2
+  |  dsubu TMP0, BASE, TMP0		// Either keep top or shrink it.
+  |.if MIPSR6
+  |  selnez TMP0, TMP0, TMP2		// LUA_MULTRET+1 case?
+  |  seleqz BASE, BASE, TMP2
+  |  b <3
+  |.  or BASE, BASE, TMP0
+  |.else
+  |  b <3
+  |.  movn BASE, TMP0, TMP2		// LUA_MULTRET+1 case?
+  |.endif
+  |
+  |8:  // Corner case: need to grow stack for filling up results.
+  |  // This can happen if:
+  |  // - A C function grows the stack (a lot).
+  |  // - The GC shrinks the stack in between.
+  |  // - A return back from a lua_call() with (high) nresults adjustment.
+  |  load_got lj_state_growstack
+  |   move MULTRES, RD
+  |  srl CARG2, TMP2, 3
+  |  call_intern lj_state_growstack	// (lua_State *L, int n)
+  |.  move CARG1, L
+  |    lw TMP2, SAVE_NRES
+  |  ld BASE, L->top			// Need the (realloced) L->top in BASE.
+  |   move RD, MULTRES
+  |  b <2
+  |.   sll TMP2, TMP2, 3
+  |
+  |->vm_unwind_c:			// Unwind C stack, return from vm_pcall.
+  |  // (void *cframe, int errcode)
+  |  move sp, CARG1
+  |  move CRET1, CARG2
+  |->vm_unwind_c_eh:			// Landing pad for external unwinder.
+  |  ld L, SAVE_L
+  |   li TMP0, ~LJ_VMST_C
+  |  ld GL:TMP1, L->glref
+  |  b ->vm_leave_unw
+  |.  sw TMP0, GL:TMP1->vmstate
+  |
+  |->vm_unwind_ff:			// Unwind C stack, return from ff pcall.
+  |  // (void *cframe)
+  |  li AT, -4
+  |  and sp, CARG1, AT
+  |->vm_unwind_ff_eh:			// Landing pad for external unwinder.
+  |  ld L, SAVE_L
+  |     .FPU lui TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |     li TISNIL, LJ_TNIL
+  |    li TISNUM, LJ_TISNUM
+  |  ld BASE, L->base
+  |   ld DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |     .FPU mtc1 TMP3, TOBIT
+  |  mov_false TMP1
+  |    li_vmstate INTERP
+  |  ld PC, FRAME_PC(BASE)		// Fetch PC of previous frame.
+  |     .FPU cvt.d.s TOBIT, TOBIT
+  |  daddiu RA, BASE, -8		// Results start at BASE-8.
+  |   daddiu DISPATCH, DISPATCH, GG_G2DISP
+  |  sd TMP1, 0(RA)			// Prepend false to error message.
+  |    st_vmstate
+  |  b ->vm_returnc
+  |.  li RD, 16				// 2 results: false + error message.
+  |
+  |->vm_unwind_stub:			// Jump to exit stub from unwinder.
+  |  jr CARG1
+  |.  move ra, CARG2
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Grow stack for calls -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_growstack_c:			// Grow stack for C function.
+  |  b >2
+  |.  li CARG2, LUA_MINSTACK
+  |
+  |->vm_growstack_l:			// Grow stack for Lua function.
+  |  // BASE = new base, RA = BASE+framesize*8, RC = nargs*8, PC = first PC
+  |  daddu RC, BASE, RC
+  |   dsubu RA, RA, BASE
+  |  sd BASE, L->base
+  |   daddiu PC, PC, 4			// Must point after first instruction.
+  |  sd RC, L->top
+  |   srl CARG2, RA, 3
+  |2:
+  |  // L->base = new base, L->top = top
+  |  load_got lj_state_growstack
+  |   sd PC, SAVE_PC
+  |  call_intern lj_state_growstack	// (lua_State *L, int n)
+  |.  move CARG1, L
+  |  ld BASE, L->base
+  |  ld RC, L->top
+  |  ld LFUNC:RB, FRAME_FUNC(BASE)
+  |  dsubu RC, RC, BASE
+  |  cleartp LFUNC:RB
+  |  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+  |  ins_callt				// Just retry the call.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Entry points into the assembler VM ---------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_resume:				// Setup C frame and resume thread.
+  |  // (lua_State *L, TValue *base, int nres1 = 0, ptrdiff_t ef = 0)
+  |  saveregs
+  |  move L, CARG1
+  |    ld DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |  move BASE, CARG2
+  |    lbu TMP1, L->status
+  |   sd L, SAVE_L
+  |  li PC, FRAME_CP
+  |  daddiu TMP0, sp, CFRAME_RESUME
+  |    daddiu DISPATCH, DISPATCH, GG_G2DISP
+  |   sw r0, SAVE_NRES
+  |   sw r0, SAVE_ERRF
+  |   sd CARG1, SAVE_PC			// Any value outside of bytecode is ok.
+  |   sd r0, SAVE_CFRAME
+  |    beqz TMP1, >3
+  |. sd TMP0, L->cframe
+  |
+  |  // Resume after yield (like a return).
+  |  sd L, DISPATCH_GL(cur_L)(DISPATCH)
+  |  move RA, BASE
+  |   ld BASE, L->base
+  |   ld TMP1, L->top
+  |  ld PC, FRAME_PC(BASE)
+  |     .FPU  lui TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |   dsubu RD, TMP1, BASE
+  |     .FPU  mtc1 TMP3, TOBIT
+  |    sb r0, L->status
+  |     .FPU  cvt.d.s TOBIT, TOBIT
+  |    li_vmstate INTERP
+  |   daddiu RD, RD, 8
+  |    st_vmstate
+  |   move MULTRES, RD
+  |  andi TMP0, PC, FRAME_TYPE
+  |    li TISNIL, LJ_TNIL
+  |  beqz TMP0, ->BC_RET_Z
+  |.    li TISNUM, LJ_TISNUM
+  |  b ->vm_return
+  |.  nop
+  |
+  |->vm_pcall:				// Setup protected C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1, ptrdiff_t ef)
+  |  saveregs
+  |  sw CARG4, SAVE_ERRF
+  |  b >1
+  |.  li PC, FRAME_CP
+  |
+  |->vm_call:				// Setup C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1)
+  |  saveregs
+  |  li PC, FRAME_C
+  |
+  |1:  // Entry point for vm_pcall above (PC = ftype).
+  |  ld TMP1, L:CARG1->cframe
+  |    move L, CARG1
+  |   sw CARG3, SAVE_NRES
+  |    ld DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |   sd CARG1, SAVE_L
+  |     move BASE, CARG2
+  |    daddiu DISPATCH, DISPATCH, GG_G2DISP
+  |   sd CARG1, SAVE_PC			// Any value outside of bytecode is ok.
+  |  sd TMP1, SAVE_CFRAME
+  |  sd sp, L->cframe			// Add our C frame to cframe chain.
+  |
+  |3:  // Entry point for vm_cpcall/vm_resume (BASE = base, PC = ftype).
+  |  sd L, DISPATCH_GL(cur_L)(DISPATCH)
+  |  ld TMP2, L->base			// TMP2 = old base (used in vmeta_call).
+  |     .FPU lui TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |   ld TMP1, L->top
+  |     .FPU mtc1 TMP3, TOBIT
+  |  daddu PC, PC, BASE
+  |   dsubu NARGS8:RC, TMP1, BASE
+  |     li TISNUM, LJ_TISNUM
+  |  dsubu PC, PC, TMP2			// PC = frame delta + frame type
+  |     .FPU cvt.d.s TOBIT, TOBIT
+  |    li_vmstate INTERP
+  |     li TISNIL, LJ_TNIL
+  |    st_vmstate
+  |
+  |->vm_call_dispatch:
+  |  // TMP2 = old base, BASE = new base, RC = nargs*8, PC = caller PC
+  |  ld LFUNC:RB, FRAME_FUNC(BASE)
+  |  checkfunc LFUNC:RB, ->vmeta_call
+  |
+  |->vm_call_dispatch_f:
+  |  ins_call
+  |  // BASE = new base, RB = func, RC = nargs*8, PC = caller PC
+  |
+  |->vm_cpcall:				// Setup protected C frame, call C.
+  |  // (lua_State *L, lua_CFunction func, void *ud, lua_CPFunction cp)
+  |  saveregs
+  |  move L, CARG1
+  |   ld TMP0, L:CARG1->stack
+  |  sd CARG1, SAVE_L
+  |   ld TMP1, L->top
+  |     ld DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |  sd CARG1, SAVE_PC			// Any value outside of bytecode is ok.
+  |   dsubu TMP0, TMP0, TMP1		// Compute -savestack(L, L->top).
+  |    ld TMP1, L->cframe
+  |     daddiu DISPATCH, DISPATCH, GG_G2DISP
+  |   sw TMP0, SAVE_NRES		// Neg. delta means cframe w/o frame.
+  |  sw r0, SAVE_ERRF			// No error function.
+  |    sd TMP1, SAVE_CFRAME
+  |    sd sp, L->cframe			// Add our C frame to cframe chain.
+  |     sd L, DISPATCH_GL(cur_L)(DISPATCH)
+  |  jalr CARG4			// (lua_State *L, lua_CFunction func, void *ud)
+  |.  move CFUNCADDR, CARG4
+  |  move BASE, CRET1
+  |  bnez CRET1, <3			// Else continue with the call.
+  |.  li PC, FRAME_CP
+  |  b ->vm_leave_cp			// No base? Just remove C frame.
+  |.  nop
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Metamethod handling ------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// The lj_meta_* functions (except for lj_meta_cat) don't reallocate the
+  |// stack, so BASE doesn't need to be reloaded across these calls.
+  |
+  |//-- Continuation dispatch ----------------------------------------------
+  |
+  |->cont_dispatch:
+  |  // BASE = meta base, RA = resultptr, RD = (nresults+1)*8
+  |  ld TMP0, -32(BASE)			// Continuation.
+  |   move RB, BASE
+  |   move BASE, TMP2			// Restore caller BASE.
+  |    ld LFUNC:TMP1, FRAME_FUNC(TMP2)
+  |.if FFI
+  |  sltiu AT, TMP0, 2
+  |.endif
+  |     ld PC, -24(RB)			// Restore PC from [cont|PC].
+  |    cleartp LFUNC:TMP1
+  |   daddu TMP2, RA, RD
+  |.if FFI
+  |  bnez AT, >1
+  |.endif
+  |.  sd TISNIL, -8(TMP2)		// Ensure one valid arg.
+  |    ld TMP1, LFUNC:TMP1->pc
+  |  // BASE = base, RA = resultptr, RB = meta base
+  |  jr TMP0				// Jump to continuation.
+  |.  ld KBASE, PC2PROTO(k)(TMP1)
+  |
+  |.if FFI
+  |1:
+  |  bnez TMP0, ->cont_ffi_callback	// cont = 1: return from FFI callback.
+  |  // cont = 0: tailcall from C function.
+  |.  daddiu TMP1, RB, -32
+  |  b ->vm_call_tail
+  |.  dsubu RC, TMP1, BASE
+  |.endif
+  |
+  |->cont_cat:				// RA = resultptr, RB = meta base
+  |  lw INS, -4(PC)
+  |   daddiu CARG2, RB, -32
+  |  ld CRET1, 0(RA)
+  |  decode_RB8a MULTRES, INS
+  |   decode_RA8a RA, INS
+  |  decode_RB8b MULTRES
+  |   decode_RA8b RA
+  |  daddu TMP1, BASE, MULTRES
+  |   sd BASE, L->base
+  |   dsubu CARG3, CARG2, TMP1
+  |  bne TMP1, CARG2, ->BC_CAT_Z
+  |.  sd CRET1, 0(CARG2)
+  |  daddu RA, BASE, RA
+  |  b ->cont_nop
+  |.  sd CRET1, 0(RA)
+  |
+  |//-- Table indexing metamethods -----------------------------------------
+  |
+  |->vmeta_tgets1:
+  |  daddiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+  |  li TMP0, LJ_TSTR
+  |  settp STR:RC, TMP0
+  |  b >1
+  |.  sd STR:RC, 0(CARG3)
+  |
+  |->vmeta_tgets:
+  |  daddiu CARG2, DISPATCH, DISPATCH_GL(tmptv)
+  |  li TMP0, LJ_TTAB
+  |   li TMP1, LJ_TSTR
+  |  settp TAB:RB, TMP0
+  |   daddiu CARG3, DISPATCH, DISPATCH_GL(tmptv2)
+  |  sd TAB:RB, 0(CARG2)
+  |   settp STR:RC, TMP1
+  |  b >1
+  |.  sd STR:RC, 0(CARG3)
+  |
+  |->vmeta_tgetb:			// TMP0 = index
+  |  daddiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+  |  settp TMP0, TISNUM
+  |  sd TMP0, 0(CARG3)
+  |
+  |->vmeta_tgetv:
+  |1:
+  |  load_got lj_meta_tget
+  |  sd BASE, L->base
+  |  sd PC, SAVE_PC
+  |  call_intern lj_meta_tget		// (lua_State *L, TValue *o, TValue *k)
+  |.  move CARG1, L
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  beqz CRET1, >3
+  |.  daddiu TMP1, BASE, -FRAME_CONT
+  |  ld CARG1, 0(CRET1)
+  |  ins_next1
+  |  sd CARG1, 0(RA)
+  |  ins_next2
+  |
+  |3:  // Call __index metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k
+  |  ld BASE, L->top
+  |  sd PC, -24(BASE)			// [cont|PC]
+  |   dsubu PC, BASE, TMP1
+  |  ld LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |  cleartp LFUNC:RB
+  |  b ->vm_call_dispatch_f
+  |.  li NARGS8:RC, 16			// 2 args for func(t, k).
+  |
+  |->vmeta_tgetr:
+  |  load_got lj_tab_getinth
+  |  call_intern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |.  nop
+  |  // Returns cTValue * or NULL.
+  |  beqz CRET1, ->BC_TGETR_Z
+  |.  move CARG2, TISNIL
+  |  b ->BC_TGETR_Z
+  |.  ld CARG2, 0(CRET1)
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->vmeta_tsets1:
+  |  daddiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+  |  li TMP0, LJ_TSTR
+  |  settp STR:RC, TMP0
+  |  b >1
+  |.  sd STR:RC, 0(CARG3)
+  |
+  |->vmeta_tsets:
+  |  daddiu CARG2, DISPATCH, DISPATCH_GL(tmptv)
+  |  li TMP0, LJ_TTAB
+  |   li TMP1, LJ_TSTR
+  |  settp TAB:RB, TMP0
+  |   daddiu CARG3, DISPATCH, DISPATCH_GL(tmptv2)
+  |  sd TAB:RB, 0(CARG2)
+  |   settp STR:RC, TMP1
+  |  b >1
+  |.  sd STR:RC, 0(CARG3)
+  |
+  |->vmeta_tsetb:			// TMP0 = index
+  |  daddiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+  |  settp TMP0, TISNUM
+  |  sd TMP0, 0(CARG3)
+  |
+  |->vmeta_tsetv:
+  |1:
+  |  load_got lj_meta_tset
+  |  sd BASE, L->base
+  |  sd PC, SAVE_PC
+  |  call_intern lj_meta_tset		// (lua_State *L, TValue *o, TValue *k)
+  |.  move CARG1, L
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  beqz CRET1, >3
+  |.  ld CARG1, 0(RA)
+  |  // NOBARRIER: lj_meta_tset ensures the table is not black.
+  |  ins_next1
+  |  sd CARG1, 0(CRET1)
+  |  ins_next2
+  |
+  |3:  // Call __newindex metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k/(v)
+  |  daddiu TMP1, BASE, -FRAME_CONT
+  |  ld BASE, L->top
+  |  sd PC, -24(BASE)			// [cont|PC]
+  |   dsubu PC, BASE, TMP1
+  |  ld LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |  cleartp LFUNC:RB
+  |  sd CARG1, 16(BASE)			// Copy value to third argument.
+  |  b ->vm_call_dispatch_f
+  |.  li NARGS8:RC, 24			// 3 args for func(t, k, v)
+  |
+  |->vmeta_tsetr:
+  |  load_got lj_tab_setinth
+  |  sd BASE, L->base
+  |  sd PC, SAVE_PC
+  |  call_intern lj_tab_setinth	// (lua_State *L, GCtab *t, int32_t key)
+  |.  move CARG1, L
+  |  // Returns TValue *.
+  |  b ->BC_TSETR_Z
+  |.  nop
+  |
+  |//-- Comparison metamethods ---------------------------------------------
+  |
+  |->vmeta_comp:
+  |  // RA/RD point to o1/o2.
+  |  move CARG2, RA
+  |  move CARG3, RD
+  |  load_got lj_meta_comp
+  |  daddiu PC, PC, -4
+  |  sd BASE, L->base
+  |  sd PC, SAVE_PC
+  |  decode_OP1 CARG4, INS
+  |  call_intern lj_meta_comp	// (lua_State *L, TValue *o1, *o2, int op)
+  |.  move CARG1, L
+  |  // Returns 0/1 or TValue * (metamethod).
+  |3:
+  |  sltiu AT, CRET1, 2
+  |  beqz AT, ->vmeta_binop
+  |   negu TMP2, CRET1
+  |4:
+  |  lhu RD, OFS_RD(PC)
+  |   daddiu PC, PC, 4
+  |   lui TMP1, (-(BCBIAS_J*4 >> 16) & 65535)
+  |  sll RD, RD, 2
+  |  addu RD, RD, TMP1
+  |  and RD, RD, TMP2
+  |  daddu PC, PC, RD
+  |->cont_nop:
+  |  ins_next
+  |
+  |->cont_ra:				// RA = resultptr
+  |  lbu TMP1, -4+OFS_RA(PC)
+  |   ld CRET1, 0(RA)
+  |  sll TMP1, TMP1, 3
+  |  daddu TMP1, BASE, TMP1
+  |  b ->cont_nop
+  |.   sd CRET1, 0(TMP1)
+  |
+  |->cont_condt:			// RA = resultptr
+  |  ld TMP0, 0(RA)
+  |  gettp TMP0, TMP0
+  |  sltiu AT, TMP0, LJ_TISTRUECOND
+  |  b <4
+  |.  negu TMP2, AT			// Branch if result is true.
+  |
+  |->cont_condf:			// RA = resultptr
+  |  ld TMP0, 0(RA)
+  |  gettp TMP0, TMP0
+  |  sltiu AT, TMP0, LJ_TISTRUECOND
+  |  b <4
+  |.  addiu TMP2, AT, -1		// Branch if result is false.
+  |
+  |->vmeta_equal:
+  |  // CARG1/CARG2 point to o1/o2. TMP0 is set to 0/1.
+  |  load_got lj_meta_equal
+  |   cleartp LFUNC:CARG3, CARG2
+  |  cleartp LFUNC:CARG2, CARG1
+  |    move CARG4, TMP0
+  |  daddiu PC, PC, -4
+  |   sd BASE, L->base
+  |   sd PC, SAVE_PC
+  |  call_intern lj_meta_equal	// (lua_State *L, GCobj *o1, *o2, int ne)
+  |.  move CARG1, L
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |.  nop
+  |
+  |->vmeta_equal_cd:
+  |.if FFI
+  |  load_got lj_meta_equal_cd
+  |  move CARG2, INS
+  |  daddiu PC, PC, -4
+  |   sd BASE, L->base
+  |   sd PC, SAVE_PC
+  |  call_intern lj_meta_equal_cd	// (lua_State *L, BCIns op)
+  |.  move CARG1, L
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |.  nop
+  |.endif
+  |
+  |->vmeta_istype:
+  |  load_got lj_meta_istype
+  |  daddiu PC, PC, -4
+  |   sd BASE, L->base
+  |   srl CARG2, RA, 3
+  |   srl CARG3, RD, 3
+  |  sd PC, SAVE_PC
+  |  call_intern lj_meta_istype	// (lua_State *L, BCReg ra, BCReg tp)
+  |.  move CARG1, L
+  |  b ->cont_nop
+  |.  nop
+  |
+  |//-- Arithmetic metamethods ---------------------------------------------
+  |
+  |->vmeta_unm:
+  |  move RC, RB
+  |
+  |->vmeta_arith:
+  |  load_got lj_meta_arith
+  |   sd BASE, L->base
+  |  move CARG2, RA
+  |   sd PC, SAVE_PC
+  |  move CARG3, RB
+  |  move CARG4, RC
+  |  decode_OP1 CARG5, INS	// CARG5 == RB.
+  |  call_intern lj_meta_arith	// (lua_State *L, TValue *ra,*rb,*rc, BCReg op)
+  |.  move CARG1, L
+  |  // Returns NULL (finished) or TValue * (metamethod).
+  |  beqz CRET1, ->cont_nop
+  |.  nop
+  |
+  |  // Call metamethod for binary op.
+  |->vmeta_binop:
+  |  // BASE = old base, CRET1 = new base, stack = cont/func/o1/o2
+  |  dsubu TMP1, CRET1, BASE
+  |   sd PC, -24(CRET1)			// [cont|PC]
+  |   move TMP2, BASE
+  |  daddiu PC, TMP1, FRAME_CONT
+  |   move BASE, CRET1
+  |  b ->vm_call_dispatch
+  |.  li NARGS8:RC, 16			// 2 args for func(o1, o2).
+  |
+  |->vmeta_len:
+  |  // CARG2 already set by BC_LEN.
+#if LJ_52
+  |  move MULTRES, CARG1
+#endif
+  |  load_got lj_meta_len
+  |   sd BASE, L->base
+  |   sd PC, SAVE_PC
+  |  call_intern lj_meta_len		// (lua_State *L, TValue *o)
+  |.  move CARG1, L
+  |  // Returns NULL (retry) or TValue * (metamethod base).
+#if LJ_52
+  |  bnez CRET1, ->vmeta_binop		// Binop call for compatibility.
+  |.  nop
+  |  b ->BC_LEN_Z
+  |.  move CARG1, MULTRES
+#else
+  |  b ->vmeta_binop			// Binop call for compatibility.
+  |.  nop
+#endif
+  |
+  |//-- Call metamethod ----------------------------------------------------
+  |
+  |->vmeta_call:			// Resolve and call __call metamethod.
+  |  // TMP2 = old base, BASE = new base, RC = nargs*8
+  |  load_got lj_meta_call
+  |   sd TMP2, L->base			// This is the callers base!
+  |  daddiu CARG2, BASE, -16
+  |   sd PC, SAVE_PC
+  |  daddu CARG3, BASE, RC
+  |   move MULTRES, NARGS8:RC
+  |  call_intern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |.  move CARG1, L
+  |  ld LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |   daddiu NARGS8:RC, MULTRES, 8	// Got one more argument now.
+  |  cleartp LFUNC:RB
+  |  ins_call
+  |
+  |->vmeta_callt:			// Resolve __call for BC_CALLT.
+  |  // BASE = old base, RA = new base, RC = nargs*8
+  |  load_got lj_meta_call
+  |   sd BASE, L->base
+  |  daddiu CARG2, RA, -16
+  |   sd PC, SAVE_PC
+  |  daddu CARG3, RA, RC
+  |   move MULTRES, NARGS8:RC
+  |  call_intern lj_meta_call		// (lua_State *L, TValue *func, TValue *top)
+  |.  move CARG1, L
+  |   ld RB, FRAME_FUNC(RA)		// Guaranteed to be a function here.
+  |  ld TMP1, FRAME_PC(BASE)
+  |  daddiu NARGS8:RC, MULTRES, 8	// Got one more argument now.
+  |  b ->BC_CALLT_Z
+  |.  cleartp LFUNC:CARG3, RB
+  |
+  |//-- Argument coercion for 'for' statement ------------------------------
+  |
+  |->vmeta_for:
+  |  load_got lj_meta_for
+  |   sd BASE, L->base
+  |  move CARG2, RA
+  |   sd PC, SAVE_PC
+  |  move MULTRES, INS
+  |  call_intern lj_meta_for	// (lua_State *L, TValue *base)
+  |.  move CARG1, L
+  |.if JIT
+  |  decode_OP1 TMP0, MULTRES
+  |  li AT, BC_JFORI
+  |.endif
+  |  decode_RA8a RA, MULTRES
+  |   decode_RD8a RD, MULTRES
+  |  decode_RA8b RA
+  |.if JIT
+  |  beq TMP0, AT, =>BC_JFORI
+  |.  decode_RD8b RD
+  |  b =>BC_FORI
+  |.  nop
+  |.else
+  |  b =>BC_FORI
+  |.  decode_RD8b RD
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Fast functions -----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro .ffunc, name
+  |->ff_ .. name:
+  |.endmacro
+  |
+  |.macro .ffunc_1, name
+  |->ff_ .. name:
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  ld CARG1, 0(BASE)
+  |.endmacro
+  |
+  |.macro .ffunc_2, name
+  |->ff_ .. name:
+  |  sltiu AT, NARGS8:RC, 16
+  |  ld CARG1, 0(BASE)
+  |  bnez AT, ->fff_fallback
+  |.  ld CARG2, 8(BASE)
+  |.endmacro
+  |
+  |.macro .ffunc_n, name	// Caveat: has delay slot!
+  |->ff_ .. name:
+  |  ld CARG1, 0(BASE)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |  // Either ldc1 or the 1st instruction of checknum is in the delay slot.
+  |  .FPU ldc1 FARG1, 0(BASE)
+  |  checknum CARG1, ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_nn, name	// Caveat: has delay slot!
+  |->ff_ .. name:
+  |  ld CARG1, 0(BASE)
+  |    sltiu AT, NARGS8:RC, 16
+  |   ld CARG2, 8(BASE)
+  |  bnez AT, ->fff_fallback
+  |.  gettp TMP0, CARG1
+  |   gettp TMP1, CARG2
+  |  sltiu TMP0, TMP0, LJ_TISNUM
+  |   sltiu TMP1, TMP1, LJ_TISNUM
+  |  .FPU ldc1 FARG1, 0(BASE)
+  |  and TMP0, TMP0, TMP1
+  |   .FPU ldc1 FARG2, 8(BASE)
+  |  beqz TMP0, ->fff_fallback
+  |.endmacro
+  |
+  |// Inlined GC threshold check. Caveat: uses TMP0 and TMP1 and has delay slot!
+  |// MIPSR6: no delay slot, but a forbidden slot.
+  |.macro ffgccheck
+  |  ld TMP0, DISPATCH_GL(gc.total)(DISPATCH)
+  |  ld TMP1, DISPATCH_GL(gc.threshold)(DISPATCH)
+  |  dsubu AT, TMP0, TMP1
+  |.if MIPSR6
+  |  bgezalc AT, ->fff_gcstep
+  |.else
+  |  bgezal AT, ->fff_gcstep
+  |.endif
+  |.endmacro
+  |
+  |//-- Base library: checks -----------------------------------------------
+  |.ffunc_1 assert
+  |  gettp AT, CARG1
+  |  sltiu AT, AT, LJ_TISTRUECOND
+  |  beqz AT, ->fff_fallback
+  |.  daddiu RA, BASE, -16
+  |  ld PC, FRAME_PC(BASE)
+  |  addiu RD, NARGS8:RC, 8		// Compute (nresults+1)*8.
+  |  daddu TMP2, RA, RD
+  |  daddiu TMP1, BASE, 8
+  |  beq BASE, TMP2, ->fff_res		// Done if exactly 1 argument.
+  |.  sd CARG1, 0(RA)
+  |1:
+  |  ld CRET1, 0(TMP1)
+  |  sd CRET1, -16(TMP1)
+  |  bne TMP1, TMP2, <1
+  |.  daddiu TMP1, TMP1, 8
+  |  b ->fff_res
+  |.  nop
+  |
+  |.ffunc_1 type
+  |  gettp TMP0, CARG1
+  |  sltu TMP1, TISNUM, TMP0
+  |  not TMP2, TMP0
+  |  li TMP3, ~LJ_TISNUM
+  |.if MIPSR6
+  |  selnez TMP2, TMP2, TMP1
+  |  seleqz TMP3, TMP3, TMP1
+  |  or TMP2, TMP2, TMP3
+  |.else
+  |  movz TMP2, TMP3, TMP1
+  |.endif
+  |  dsll TMP2, TMP2, 3
+  |  daddu TMP2, CFUNC:RB, TMP2
+  |  b ->fff_restv
+  |.  ld CARG1, CFUNC:TMP2->upvalue
+  |
+  |//-- Base library: getters and setters ---------------------------------
+  |
+  |.ffunc_1 getmetatable
+  |  gettp TMP2, CARG1
+  |  daddiu TMP0, TMP2, -LJ_TTAB
+  |  daddiu TMP1, TMP2, -LJ_TUDATA
+  |.if MIPSR6
+  |  selnez TMP0, TMP1, TMP0
+  |.else
+  |  movn TMP0, TMP1, TMP0
+  |.endif
+  |  bnez TMP0, >6
+  |.  cleartp TAB:CARG1
+  |1:  // Field metatable must be at same offset for GCtab and GCudata!
+  |  ld TAB:RB, TAB:CARG1->metatable
+  |2:
+  |  ld STR:RC, DISPATCH_GL(gcroot[GCROOT_MMNAME+MM_metatable])(DISPATCH)
+  |  beqz TAB:RB, ->fff_restv
+  |.  li CARG1, LJ_TNIL
+  |  lw TMP0, TAB:RB->hmask
+  |   lw TMP1, STR:RC->sid
+  |    ld NODE:TMP2, TAB:RB->node
+  |  and TMP1, TMP1, TMP0		// idx = str->sid & tab->hmask
+  |  dsll TMP0, TMP1, 5
+  |  dsll TMP1, TMP1, 3
+  |  dsubu TMP1, TMP0, TMP1
+  |  daddu NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+  |  li CARG4, LJ_TSTR
+  |  settp STR:RC, CARG4		// Tagged key to look for.
+  |3:  // Rearranged logic, because we expect _not_ to find the key.
+  |  ld TMP0, NODE:TMP2->key
+  |   ld CARG1, NODE:TMP2->val
+  |    ld NODE:TMP2, NODE:TMP2->next
+  |  beq RC, TMP0, >5
+  |.  li AT, LJ_TTAB
+  |  bnez NODE:TMP2, <3
+  |.  nop
+  |4:
+  |  move CARG1, RB
+  |  b ->fff_restv			// Not found, keep default result.
+  |.  settp CARG1, AT
+  |5:
+  |  bne CARG1, TISNIL, ->fff_restv
+  |.  nop
+  |  b <4				// Ditto for nil value.
+  |.  nop
+  |
+  |6:
+  |  sltiu AT, TMP2, LJ_TISNUM
+  |.if MIPSR6
+  |  selnez TMP0, TISNUM, AT
+  |  seleqz AT, TMP2, AT
+  |  or TMP2, TMP0, AT
+  |.else
+  |  movn TMP2, TISNUM, AT
+  |.endif
+  |  dsll TMP2, TMP2, 3
+  |   dsubu TMP0, DISPATCH, TMP2
+  |  b <2
+  |.  ld TAB:RB, DISPATCH_GL(gcroot[GCROOT_BASEMT])-8(TMP0)
+  |
+  |.ffunc_2 setmetatable
+  |  // Fast path: no mt for table yet and not clearing the mt.
+  |  checktp TMP1, CARG1, -LJ_TTAB, ->fff_fallback
+  |  gettp TMP3, CARG2
+  |   ld TAB:TMP0, TAB:TMP1->metatable
+  |   lbu TMP2, TAB:TMP1->marked
+  |  daddiu AT, TMP3, -LJ_TTAB
+  |   cleartp TAB:CARG2
+  |  or AT, AT, TAB:TMP0
+  |  bnez AT, ->fff_fallback
+  |.  andi AT, TMP2, LJ_GC_BLACK	// isblack(table)
+  |  beqz AT, ->fff_restv
+  |.  sd TAB:CARG2, TAB:TMP1->metatable
+  |  barrierback TAB:TMP1, TMP2, TMP0, ->fff_restv
+  |
+  |.ffunc rawget
+  |  ld CARG2, 0(BASE)
+  |  sltiu AT, NARGS8:RC, 16
+  |  load_got lj_tab_get
+  |  gettp TMP0, CARG2
+  |   cleartp CARG2
+  |  daddiu TMP0, TMP0, -LJ_TTAB
+  |  or AT, AT, TMP0
+  |  bnez AT, ->fff_fallback
+  |.  daddiu CARG3, BASE, 8
+  |  call_intern lj_tab_get	// (lua_State *L, GCtab *t, cTValue *key)
+  |.  move CARG1, L
+  |  b ->fff_restv
+  |.  ld CARG1, 0(CRET1)
+  |
+  |//-- Base library: conversions ------------------------------------------
+  |
+  |.ffunc tonumber
+  |  // Only handles the number case inline (without a base argument).
+  |  ld CARG1, 0(BASE)
+  |  xori AT, NARGS8:RC, 8		// Exactly one number argument.
+  |  gettp TMP1, CARG1
+  |  sltu TMP0, TISNUM, TMP1
+  |  or AT, AT, TMP0
+  |  bnez AT, ->fff_fallback
+  |.  nop
+  |  b ->fff_restv
+  |.  nop
+  |
+  |.ffunc_1 tostring
+  |  // Only handles the string or number case inline.
+  |  gettp TMP0, CARG1
+  |  daddiu AT, TMP0, -LJ_TSTR
+  |  // A __tostring method in the string base metatable is ignored.
+  |  beqz AT, ->fff_restv	// String key?
+  |  // Handle numbers inline, unless a number base metatable is present.
+  |.  ld TMP1, DISPATCH_GL(gcroot[GCROOT_BASEMT_NUM])(DISPATCH)
+  |  sltu TMP0, TISNUM, TMP0
+  |  or TMP0, TMP0, TMP1
+  |  bnez TMP0, ->fff_fallback
+  |.  sd BASE, L->base			// Add frame since C call can throw.
+  |.if MIPSR6
+  |  sd PC, SAVE_PC			// Redundant (but a defined value).
+  |  ffgccheck
+  |.else
+  |  ffgccheck
+  |.  sd PC, SAVE_PC			// Redundant (but a defined value).
+  |.endif
+  |  load_got lj_strfmt_number
+  |  move CARG1, L
+  |  call_intern lj_strfmt_number	// (lua_State *L, cTValue *o)
+  |.  move CARG2, BASE
+  |  // Returns GCstr *.
+  |  li AT, LJ_TSTR
+  |  settp CRET1, AT
+  |  b ->fff_restv
+  |.  move CARG1, CRET1
+  |
+  |//-- Base library: iterators -------------------------------------------
+  |
+  |.ffunc_1 next
+  |  checktp CARG1, -LJ_TTAB, ->fff_fallback
+  |  daddu TMP2, BASE, NARGS8:RC
+  |  sd TISNIL, 0(TMP2)			// Set missing 2nd arg to nil.
+  |  load_got lj_tab_next
+  |  ld PC, FRAME_PC(BASE)
+  |  daddiu CARG2, BASE, 8
+  |  call_intern lj_tab_next		// (GCtab *t, cTValue *key, TValue *o)
+  |.  daddiu CARG3, BASE, -16
+  |  // Returns 1=found, 0=end, -1=error.
+  |   daddiu RA, BASE, -16
+  |  bgtz CRET1, ->fff_res		// Found key/value.
+  |.  li RD, (2+1)*8
+  |  beqz CRET1, ->fff_restv		// End of traversal: return nil.
+  |.  move CARG1, TISNIL
+  |   ld CFUNC:RB, FRAME_FUNC(BASE)
+  |   cleartp CFUNC:RB
+  |  b ->fff_fallback			// Invalid key.
+  |.  li RC, 2*8
+  |
+  |.ffunc_1 pairs
+  |  checktp TAB:TMP1, CARG1, -LJ_TTAB, ->fff_fallback
+  |  ld PC, FRAME_PC(BASE)
+#if LJ_52
+  |  ld TAB:TMP2, TAB:TMP1->metatable
+  |  ld TMP0, CFUNC:RB->upvalue[0]
+  |  bnez TAB:TMP2, ->fff_fallback
+#else
+  |  ld TMP0, CFUNC:RB->upvalue[0]
+#endif
+  |.  daddiu RA, BASE, -16
+  |  sd TISNIL, 0(BASE)
+  |   sd CARG1, -8(BASE)
+  |    sd TMP0, 0(RA)
+  |  b ->fff_res
+  |.  li RD, (3+1)*8
+  |
+  |.ffunc_2 ipairs_aux
+  |  checktab CARG1, ->fff_fallback
+  |   checkint CARG2, ->fff_fallback
+  |.  lw TMP0, TAB:CARG1->asize
+  |   ld TMP1, TAB:CARG1->array
+  |    ld PC, FRAME_PC(BASE)
+  |  sextw TMP2, CARG2
+  |  addiu TMP2, TMP2, 1
+  |  sltu AT, TMP2, TMP0
+  |    daddiu RA, BASE, -16
+  |   zextw TMP0, TMP2
+  |   settp TMP0, TISNUM
+  |  beqz AT, >2			// Not in array part?
+  |.  sd TMP0, 0(RA)
+  |  dsll TMP3, TMP2, 3
+  |  daddu TMP3, TMP1, TMP3
+  |  ld TMP1, 0(TMP3)
+  |1:
+  |  beq TMP1, TISNIL, ->fff_res	// End of iteration, return 0 results.
+  |.  li RD, (0+1)*8
+  |  sd TMP1, -8(BASE)
+  |  b ->fff_res
+  |.  li RD, (2+1)*8
+  |2:  // Check for empty hash part first. Otherwise call C function.
+  |  lw TMP0, TAB:CARG1->hmask
+  |  load_got lj_tab_getinth
+  |  beqz TMP0, ->fff_res
+  |.  li RD, (0+1)*8
+  |  call_intern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |.  move CARG2, TMP2
+  |  // Returns cTValue * or NULL.
+  |  beqz CRET1, ->fff_res
+  |.  li RD, (0+1)*8
+  |  b <1
+  |.  ld TMP1, 0(CRET1)
+  |
+  |.ffunc_1 ipairs
+  |  checktp TAB:TMP1, CARG1, -LJ_TTAB, ->fff_fallback
+  |  ld PC, FRAME_PC(BASE)
+#if LJ_52
+  |  ld TAB:TMP2, TAB:TMP1->metatable
+  |  ld CFUNC:TMP0, CFUNC:RB->upvalue[0]
+  |  bnez TAB:TMP2, ->fff_fallback
+#else
+  |  ld TMP0, CFUNC:RB->upvalue[0]
+#endif
+  |  daddiu RA, BASE, -16
+  |  dsll AT, TISNUM, 47
+  |  sd CARG1, -8(BASE)
+  |   sd AT, 0(BASE)
+  |    sd CFUNC:TMP0, 0(RA)
+  |  b ->fff_res
+  |.  li RD, (3+1)*8
+  |
+  |//-- Base library: catch errors ----------------------------------------
+  |
+  |.ffunc pcall
+  |  daddiu NARGS8:RC, NARGS8:RC, -8
+  |  lbu TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  bltz NARGS8:RC, ->fff_fallback
+  |.   move TMP2, BASE
+  |   daddiu BASE, BASE, 16
+  |  // Remember active hook before pcall.
+  |  srl TMP3, TMP3, HOOK_ACTIVE_SHIFT
+  |  andi TMP3, TMP3, 1
+  |  daddiu PC, TMP3, 16+FRAME_PCALL
+  |  beqz NARGS8:RC, ->vm_call_dispatch
+  |1:
+  |.  daddu TMP0, BASE, NARGS8:RC
+  |2:
+  |  ld TMP1, -16(TMP0)
+  |  sd TMP1, -8(TMP0)
+  |  daddiu TMP0, TMP0, -8
+  |  bne TMP0, BASE, <2
+  |.  nop
+  |  b ->vm_call_dispatch
+  |.  nop
+  |
+  |.ffunc xpcall
+  |  daddiu NARGS8:TMP0, NARGS8:RC, -16
+  |  ld CARG1, 0(BASE)
+  |   ld CARG2, 8(BASE)
+  |    bltz NARGS8:TMP0, ->fff_fallback
+  |.    lbu TMP1, DISPATCH_GL(hookmask)(DISPATCH)
+  |  gettp AT, CARG2
+  |  daddiu AT, AT, -LJ_TFUNC
+  |  bnez AT, ->fff_fallback		// Traceback must be a function.
+  |.   move TMP2, BASE
+  |  move NARGS8:RC, NARGS8:TMP0
+  |   daddiu BASE, BASE, 24
+  |  // Remember active hook before pcall.
+  |  srl TMP3, TMP3, HOOK_ACTIVE_SHIFT
+  |   sd CARG2, 0(TMP2)			// Swap function and traceback.
+  |  andi TMP3, TMP3, 1
+  |   sd CARG1, 8(TMP2)
+  |  beqz NARGS8:RC, ->vm_call_dispatch
+  |.  daddiu PC, TMP3, 24+FRAME_PCALL
+  |  b <1
+  |.  nop
+  |
+  |//-- Coroutine library --------------------------------------------------
+  |
+  |.macro coroutine_resume_wrap, resume
+  |.if resume
+  |.ffunc_1 coroutine_resume
+  |  checktp CARG1, CARG1, -LJ_TTHREAD, ->fff_fallback
+  |.else
+  |.ffunc coroutine_wrap_aux
+  |  ld L:CARG1, CFUNC:RB->upvalue[0].gcr
+  |  cleartp L:CARG1
+  |.endif
+  |  lbu TMP0, L:CARG1->status
+  |   ld TMP1, L:CARG1->cframe
+  |    ld CARG2, L:CARG1->top
+  |    ld TMP2, L:CARG1->base
+  |  addiu AT, TMP0, -LUA_YIELD
+  |    daddu CARG3, CARG2, TMP0
+  |   daddiu TMP3, CARG2, 8
+  |.if MIPSR6
+  |  seleqz CARG2, CARG2, AT
+  |  selnez TMP3, TMP3, AT
+  |  bgtz AT, ->fff_fallback		// st > LUA_YIELD?
+  |.  or CARG2, TMP3, CARG2
+  |.else
+  |  bgtz AT, ->fff_fallback		// st > LUA_YIELD?
+  |.  movn CARG2, TMP3, AT
+  |.endif
+  |   xor TMP2, TMP2, CARG3
+  |  bnez TMP1, ->fff_fallback		// cframe != 0?
+  |.  or AT, TMP2, TMP0
+  |  ld TMP0, L:CARG1->maxstack
+  |  beqz AT, ->fff_fallback		// base == top && st == 0?
+  |.  ld PC, FRAME_PC(BASE)
+  |  daddu TMP2, CARG2, NARGS8:RC
+  |  sltu AT, TMP0, TMP2
+  |  bnez AT, ->fff_fallback		// Stack overflow?
+  |.  sd PC, SAVE_PC
+  |   sd BASE, L->base
+  |1:
+  |.if resume
+  |  daddiu BASE, BASE, 8		// Keep resumed thread in stack for GC.
+  |  daddiu NARGS8:RC, NARGS8:RC, -8
+  |  daddiu TMP2, TMP2, -8
+  |.endif
+  |  sd TMP2, L:CARG1->top
+  |  daddu TMP1, BASE, NARGS8:RC
+  |  move CARG3, CARG2
+  |  sd BASE, L->top
+  |2:  // Move args to coroutine.
+  |   ld CRET1, 0(BASE)
+  |  sltu AT, BASE, TMP1
+  |  beqz AT, >3
+  |.  daddiu BASE, BASE, 8
+  |   sd CRET1, 0(CARG3)
+  |  b <2
+  |.  daddiu CARG3, CARG3, 8
+  |3:
+  |  bal ->vm_resume			// (lua_State *L, TValue *base, 0, 0)
+  |.  move L:RA, L:CARG1
+  |  // Returns thread status.
+  |4:
+  |  ld TMP2, L:RA->base
+  |   sltiu AT, CRET1, LUA_YIELD+1
+  |  ld TMP3, L:RA->top
+  |    li_vmstate INTERP
+  |  ld BASE, L->base
+  |    sd L, DISPATCH_GL(cur_L)(DISPATCH)
+  |    st_vmstate
+  |   beqz AT, >8
+  |. dsubu RD, TMP3, TMP2
+  |   ld TMP0, L->maxstack
+  |  beqz RD, >6			// No results?
+  |.  daddu TMP1, BASE, RD
+  |  sltu AT, TMP0, TMP1
+  |  bnez AT, >9			// Need to grow stack?
+  |.  daddu TMP3, TMP2, RD
+  |  sd TMP2, L:RA->top			// Clear coroutine stack.
+  |  move TMP1, BASE
+  |5:  // Move results from coroutine.
+  |   ld CRET1, 0(TMP2)
+  |  daddiu TMP2, TMP2, 8
+  |  sltu AT, TMP2, TMP3
+  |   sd CRET1, 0(TMP1)
+  |  bnez AT, <5
+  |.  daddiu TMP1, TMP1, 8
+  |6:
+  |  andi TMP0, PC, FRAME_TYPE
+  |.if resume
+  |  mov_true TMP1
+  |   daddiu RA, BASE, -8
+  |  sd TMP1, -8(BASE)			// Prepend true to results.
+  |  daddiu RD, RD, 16
+  |.else
+  |  move RA, BASE
+  |  daddiu RD, RD, 8
+  |.endif
+  |7:
+  |  sd PC, SAVE_PC
+  |  beqz TMP0, ->BC_RET_Z
+  |.  move MULTRES, RD
+  |  b ->vm_return
+  |.  nop
+  |
+  |8:  // Coroutine returned with error (at co->top-1).
+  |.if resume
+  |  daddiu TMP3, TMP3, -8
+  |   mov_false TMP1
+  |  ld CRET1, 0(TMP3)
+  |   sd TMP3, L:RA->top		// Remove error from coroutine stack.
+  |    li RD, (2+1)*8
+  |   sd TMP1, -8(BASE)			// Prepend false to results.
+  |    daddiu RA, BASE, -8
+  |  sd CRET1, 0(BASE)			// Copy error message.
+  |  b <7
+  |.  andi TMP0, PC, FRAME_TYPE
+  |.else
+  |  load_got lj_ffh_coroutine_wrap_err
+  |  move CARG2, L:RA
+  |  call_intern lj_ffh_coroutine_wrap_err  // (lua_State *L, lua_State *co)
+  |.  move CARG1, L
+  |.endif
+  |
+  |9:  // Handle stack expansion on return from yield.
+  |  load_got lj_state_growstack
+  |  srl CARG2, RD, 3
+  |  call_intern lj_state_growstack	// (lua_State *L, int n)
+  |.  move CARG1, L
+  |  b <4
+  |.  li CRET1, 0
+  |.endmacro
+  |
+  |  coroutine_resume_wrap 1		// coroutine.resume
+  |  coroutine_resume_wrap 0		// coroutine.wrap
+  |
+  |.ffunc coroutine_yield
+  |  ld TMP0, L->cframe
+  |   daddu TMP1, BASE, NARGS8:RC
+  |   sd BASE, L->base
+  |  andi TMP0, TMP0, CFRAME_RESUME
+  |   sd TMP1, L->top
+  |  beqz TMP0, ->fff_fallback
+  |.   li CRET1, LUA_YIELD
+  |  sd r0, L->cframe
+  |  b ->vm_leave_unw
+  |.   sb CRET1, L->status
+  |
+  |//-- Math library -------------------------------------------------------
+  |
+  |.ffunc_1 math_abs
+  |  gettp CARG2, CARG1
+  |  daddiu AT, CARG2, -LJ_TISNUM
+  |  bnez AT, >1
+  |.  sextw TMP1, CARG1
+  |  sra TMP0, TMP1, 31			// Extract sign.
+  |  xor TMP1, TMP1, TMP0
+  |  dsubu CARG1, TMP1, TMP0
+  |  dsll TMP3, CARG1, 32
+  |  bgez TMP3, ->fff_restv
+  |.  settp CARG1, TISNUM
+  |  li CARG1, 0x41e0			// 2^31 as a double.
+  |  b ->fff_restv
+  |.  dsll CARG1, CARG1, 48
+  |1:
+  |  sltiu AT, CARG2, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.  dextm CARG1, CARG1, 0, 30
+  |// fallthrough
+  |
+  |->fff_restv:
+  |  // CARG1 = TValue result.
+  |  ld PC, FRAME_PC(BASE)
+  |  daddiu RA, BASE, -16
+  |   sd CARG1, -16(BASE)
+  |->fff_res1:
+  |  // RA = results, PC = return.
+  |  li RD, (1+1)*8
+  |->fff_res:
+  |  // RA = results, RD = (nresults+1)*8, PC = return.
+  |  andi TMP0, PC, FRAME_TYPE
+  |  bnez TMP0, ->vm_return
+  |.  move MULTRES, RD
+  |  lw INS, -4(PC)
+  |  decode_RB8a RB, INS
+  |  decode_RB8b RB
+  |5:
+  |  sltu AT, RD, RB
+  |  bnez AT, >6			// More results expected?
+  |.  decode_RA8a TMP0, INS
+  |  decode_RA8b TMP0
+  |  ins_next1
+  |  // Adjust BASE. KBASE is assumed to be set for the calling frame.
+  |   dsubu BASE, RA, TMP0
+  |  ins_next2
+  |
+  |6:  // Fill up results with nil.
+  |  daddu TMP1, RA, RD
+  |   daddiu RD, RD, 8
+  |  b <5
+  |.  sd TISNIL, -8(TMP1)
+  |
+  |.macro math_extern, func
+  |  .ffunc_n math_ .. func
+  |  load_got func
+  |  call_extern
+  |.  nop
+  |  b ->fff_resn
+  |.  nop
+  |.endmacro
+  |
+  |.macro math_extern2, func
+  |  .ffunc_nn math_ .. func
+  |.  load_got func
+  |  call_extern
+  |.  nop
+  |  b ->fff_resn
+  |.  nop
+  |.endmacro
+  |
+  |// TODO: Return integer type if result is integer (own sf implementation).
+  |.macro math_round, func
+  |->ff_math_ .. func:
+  |  ld CARG1, 0(BASE)
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  gettp TMP0, CARG1
+  |  beq TMP0, TISNUM, ->fff_restv
+  |.  sltu AT, TMP0, TISNUM
+  |  beqz AT, ->fff_fallback
+  |.if FPU
+  |.  ldc1 FARG1, 0(BASE)
+  |  bal ->vm_ .. func
+  |.  nop
+  |.else
+  |.  load_got func
+  |  call_extern
+  |.  nop
+  |.endif
+  |  b ->fff_resn
+  |.  nop
+  |.endmacro
+  |
+  |  math_round floor
+  |  math_round ceil
+  |
+  |.ffunc math_log
+  |  li AT, 8
+  |  bne NARGS8:RC, AT, ->fff_fallback	// Exactly 1 argument.
+  |.  ld CARG1, 0(BASE)
+  |  checknum CARG1, ->fff_fallback
+  |.  load_got log
+  |.if FPU
+  |  call_extern
+  |.  ldc1 FARG1, 0(BASE)
+  |.else
+  |  call_extern
+  |.  nop
+  |.endif
+  |  b ->fff_resn
+  |.  nop
+  |
+  |  math_extern log10
+  |  math_extern exp
+  |  math_extern sin
+  |  math_extern cos
+  |  math_extern tan
+  |  math_extern asin
+  |  math_extern acos
+  |  math_extern atan
+  |  math_extern sinh
+  |  math_extern cosh
+  |  math_extern tanh
+  |  math_extern2 pow
+  |  math_extern2 atan2
+  |  math_extern2 fmod
+  |
+  |.if FPU
+  |.ffunc_n math_sqrt
+  |.  sqrt.d FRET1, FARG1
+  |// fallthrough to ->fff_resn
+  |.else
+  |  math_extern sqrt
+  |.endif
+  |
+  |->fff_resn:
+  |  ld PC, FRAME_PC(BASE)
+  |  daddiu RA, BASE, -16
+  |  b ->fff_res1
+  |.if FPU
+  |.  sdc1 FRET1, 0(RA)
+  |.else
+  |.  sd CRET1, 0(RA)
+  |.endif
+  |
+  |
+  |.ffunc_2 math_ldexp
+  |  checknum CARG1, ->fff_fallback
+  |  checkint CARG2, ->fff_fallback
+  |.  load_got ldexp
+  |  .FPU ldc1 FARG1, 0(BASE)
+  |  call_extern
+  |.  lw CARG2, 8+LO(BASE)
+  |  b ->fff_resn
+  |.  nop
+  |
+  |.ffunc_n math_frexp
+  |  load_got frexp
+  |   ld PC, FRAME_PC(BASE)
+  |  call_extern
+  |.  daddiu CARG2, DISPATCH, DISPATCH_GL(tmptv)
+  |   lw TMP1, DISPATCH_GL(tmptv)(DISPATCH)
+  |  daddiu RA, BASE, -16
+  |.if FPU
+  |   mtc1 TMP1, FARG2
+  |  sdc1 FRET1, 0(RA)
+  |   cvt.d.w FARG2, FARG2
+  |   sdc1 FARG2, 8(RA)
+  |.else
+  |  sd CRET1, 0(RA)
+  |  zextw TMP1, TMP1
+  |  settp TMP1, TISNUM
+  |  sd TMP1, 8(RA)
+  |.endif
+  |  b ->fff_res
+  |.  li RD, (2+1)*8
+  |
+  |.ffunc_n math_modf
+  |  load_got modf
+  |   ld PC, FRAME_PC(BASE)
+  |  call_extern
+  |.  daddiu CARG2, BASE, -16
+  |  daddiu RA, BASE, -16
+  |.if FPU
+  |  sdc1 FRET1, -8(BASE)
+  |.else
+  |  sd CRET1, -8(BASE)
+  |.endif
+  |  b ->fff_res
+  |.  li RD, (2+1)*8
+  |
+  |.macro math_minmax, name, intins, intinsc, fpins
+  |  .ffunc_1 name
+  |  daddu TMP3, BASE, NARGS8:RC
+  |  checkint CARG1, >5
+  |.  daddiu TMP2, BASE, 8
+  |1:  // Handle integers.
+  |  beq TMP2, TMP3, ->fff_restv
+  |.  ld CARG2, 0(TMP2)
+  |  checkint CARG2, >3
+  |.  sextw CARG1, CARG1
+  |  lw CARG2, LO(TMP2)
+  |.  slt AT, CARG1, CARG2
+  |.if MIPSR6
+  |  intins TMP1, CARG2, AT
+  |  intinsc CARG1, CARG1, AT
+  |  or CARG1, CARG1, TMP1
+  |.else
+  |  intins CARG1, CARG2, AT
+  |.endif
+  |  daddiu TMP2, TMP2, 8
+  |  zextw CARG1, CARG1
+  |  b <1
+  |.  settp CARG1, TISNUM
+  |
+  |3:  // Convert intermediate result to number and continue with number loop.
+  |  checknum CARG2, ->fff_fallback
+  |.if FPU
+  |.  mtc1 CARG1, FRET1
+  |  cvt.d.w FRET1, FRET1
+  |  b >7
+  |.  ldc1 FARG1, 0(TMP2)
+  |.else
+  |.  nop
+  |  bal ->vm_sfi2d_1
+  |.  nop
+  |  b >7
+  |.  nop
+  |.endif
+  |
+  |5:
+  |  .FPU ldc1 FRET1, 0(BASE)
+  |  checknum CARG1, ->fff_fallback
+  |6:  // Handle numbers.
+  |.  ld CARG2, 0(TMP2)
+  |  beq TMP2, TMP3, ->fff_resn
+  |.if FPU
+  |  ldc1 FARG1, 0(TMP2)
+  |.else
+  |  move CRET1, CARG1
+  |.endif
+  |  checknum CARG2, >8
+  |.  nop
+  |7:
+  |.if FPU
+  |.if MIPSR6
+  |  fpins FRET1, FRET1, FARG1
+  |.else
+  |.if fpins  // ismax
+  |  c.olt.d FARG1, FRET1
+  |.else
+  |  c.olt.d FRET1, FARG1
+  |.endif
+  |  movf.d FRET1, FARG1
+  |.endif
+  |.else
+  |.if fpins  // ismax
+  |  bal ->vm_sfcmpogt
+  |.else
+  |  bal ->vm_sfcmpolt
+  |.endif
+  |.  nop
+  |.if MIPSR6
+  |  seleqz AT, CARG2, CRET1
+  |  selnez CARG1, CARG1, CRET1
+  |  or CARG1, CARG1, AT
+  |.else
+  |  movz CARG1, CARG2, CRET1
+  |.endif
+  |.endif
+  |  b <6
+  |.  daddiu TMP2, TMP2, 8
+  |
+  |8:  // Convert integer to number and continue with number loop.
+  |  checkint CARG2, ->fff_fallback
+  |.if FPU
+  |.  lwc1 FARG1, LO(TMP2)
+  |  b <7
+  |.  cvt.d.w FARG1, FARG1
+  |.else
+  |.  lw CARG2, LO(TMP2)
+  |  bal ->vm_sfi2d_2
+  |.  nop
+  |  b <7
+  |.  nop
+  |.endif
+  |
+  |.endmacro
+  |
+  |.if MIPSR6
+  |  math_minmax math_min, seleqz, selnez, min.d
+  |  math_minmax math_max, selnez, seleqz, max.d
+  |.else
+  |  math_minmax math_min, movz, _, 0
+  |  math_minmax math_max, movn, _, 1
+  |.endif
+  |
+  |//-- String library -----------------------------------------------------
+  |
+  |.ffunc string_byte			// Only handle the 1-arg case here.
+  |  ld CARG1, 0(BASE)
+  |  gettp TMP0, CARG1
+  |  xori AT, NARGS8:RC, 8
+  |  daddiu TMP0, TMP0, -LJ_TSTR
+  |  or AT, AT, TMP0
+  |  bnez AT, ->fff_fallback		// Need exactly 1 string argument.
+  |.  cleartp STR:CARG1
+  |  lw TMP0, STR:CARG1->len
+  |    daddiu RA, BASE, -16
+  |    ld PC, FRAME_PC(BASE)
+  |  sltu RD, r0, TMP0
+  |   lbu TMP1, STR:CARG1[1]		// Access is always ok (NUL at end).
+  |  addiu RD, RD, 1
+  |  sll RD, RD, 3			// RD = ((str->len != 0)+1)*8
+  |  settp TMP1, TISNUM
+  |  b ->fff_res
+  |.  sd TMP1, 0(RA)
+  |
+  |.ffunc string_char			// Only handle the 1-arg case here.
+  |  ffgccheck
+  |.if not MIPSR6
+  |.  nop
+  |.endif
+  |  ld CARG1, 0(BASE)
+  |  gettp TMP0, CARG1
+  |  xori AT, NARGS8:RC, 8		// Exactly 1 argument.
+  |  daddiu TMP0, TMP0, -LJ_TISNUM	// Integer.
+  |  li TMP1, 255
+  |   sextw CARG1, CARG1
+  |  or AT, AT, TMP0
+  |   sltu TMP1, TMP1, CARG1		// !(255 < n).
+  |   or AT, AT, TMP1
+  |  bnez AT, ->fff_fallback
+  |.  li CARG3, 1
+  |  daddiu CARG2, sp, TMPD_OFS
+  |  sb CARG1, TMPD
+  |->fff_newstr:
+  |  load_got lj_str_new
+  |   sd BASE, L->base
+  |   sd PC, SAVE_PC
+  |  call_intern lj_str_new		// (lua_State *L, char *str, size_t l)
+  |.  move CARG1, L
+  |  // Returns GCstr *.
+  |  ld BASE, L->base
+  |->fff_resstr:
+  |  li AT, LJ_TSTR
+  |  settp CRET1, AT
+  |  b ->fff_restv
+  |.  move CARG1, CRET1
+  |
+  |.ffunc string_sub
+  |  ffgccheck
+  |.if not MIPSR6
+  |.  nop
+  |.endif
+  |  addiu AT, NARGS8:RC, -16
+  |  ld TMP0, 0(BASE)
+  |  bltz AT, ->fff_fallback
+  |.  gettp TMP3, TMP0
+  |  cleartp STR:CARG1, TMP0
+  |  ld CARG2, 8(BASE)
+  |  beqz AT, >1
+  |.  li CARG4, -1
+  |  ld CARG3, 16(BASE)
+  |  checkint CARG3, ->fff_fallback
+  |.  sextw CARG4, CARG3
+  |1:
+  |  checkint CARG2, ->fff_fallback
+  |.  li AT, LJ_TSTR
+  |  bne TMP3, AT, ->fff_fallback
+  |.  sextw CARG3, CARG2
+  |  lw CARG2, STR:CARG1->len
+  |  // STR:CARG1 = str, CARG2 = str->len, CARG3 = start, CARG4 = end
+  |  slt AT, CARG4, r0
+  |  addiu TMP0, CARG2, 1
+  |  addu TMP1, CARG4, TMP0
+  |   slt TMP3, CARG3, r0
+  |.if MIPSR6
+  |  seleqz CARG4, CARG4, AT
+  |  selnez TMP1, TMP1, AT
+  |  or CARG4, TMP1, CARG4		// if (end < 0) end += len+1
+  |.else
+  |  movn CARG4, TMP1, AT		// if (end < 0) end += len+1
+  |.endif
+  |   addu TMP1, CARG3, TMP0
+  |.if MIPSR6
+  |   selnez TMP1, TMP1, TMP3
+  |   seleqz CARG3, CARG3, TMP3
+  |   or CARG3, TMP1, CARG3		// if (start < 0) start += len+1
+  |   li TMP2, 1
+  |  slt AT, CARG4, r0
+  |   slt TMP3, r0, CARG3
+  |  seleqz CARG4, CARG4, AT		// if (end < 0) end = 0
+  |   selnez CARG3, CARG3, TMP3
+  |   seleqz TMP2, TMP2, TMP3
+  |   or CARG3, TMP2, CARG3		// if (start < 1) start = 1
+  |  slt AT, CARG2, CARG4
+  |  seleqz CARG4, CARG4, AT
+  |  selnez CARG2, CARG2, AT
+  |  or CARG4, CARG2, CARG4		// if (end > len) end = len
+  |.else
+  |   movn CARG3, TMP1, TMP3		// if (start < 0) start += len+1
+  |   li TMP2, 1
+  |  slt AT, CARG4, r0
+  |   slt TMP3, r0, CARG3
+  |  movn CARG4, r0, AT			// if (end < 0) end = 0
+  |   movz CARG3, TMP2, TMP3		// if (start < 1) start = 1
+  |  slt AT, CARG2, CARG4
+  |  movn CARG4, CARG2, AT		// if (end > len) end = len
+  |.endif
+  |   daddu CARG2, STR:CARG1, CARG3
+  |  subu CARG3, CARG4, CARG3		// len = end - start
+  |   daddiu CARG2, CARG2, sizeof(GCstr)-1
+  |  bgez CARG3, ->fff_newstr
+  |.  addiu CARG3, CARG3, 1		// len++
+  |->fff_emptystr:  // Return empty string.
+  |  li AT, LJ_TSTR
+  |  daddiu STR:CARG1, DISPATCH, DISPATCH_GL(strempty)
+  |  b ->fff_restv
+  |.  settp CARG1, AT
+  |
+  |.macro ffstring_op, name
+  |  .ffunc string_ .. name
+  |  ffgccheck
+  |.  nop
+  |  beqz NARGS8:RC, ->fff_fallback
+  |.  ld CARG2, 0(BASE)
+  |  checkstr STR:CARG2, ->fff_fallback
+  |  daddiu SBUF:CARG1, DISPATCH, DISPATCH_GL(tmpbuf)
+  |  load_got lj_buf_putstr_ .. name
+  |  ld TMP0, SBUF:CARG1->b
+  |   sd L, SBUF:CARG1->L
+  |   sd BASE, L->base
+  |  sd TMP0, SBUF:CARG1->w
+  |  call_intern extern lj_buf_putstr_ .. name
+  |.  sd PC, SAVE_PC
+  |  load_got lj_buf_tostr
+  |  call_intern lj_buf_tostr
+  |.  move SBUF:CARG1, SBUF:CRET1
+  |  b ->fff_resstr
+  |.  ld BASE, L->base
+  |.endmacro
+  |
+  |ffstring_op reverse
+  |ffstring_op lower
+  |ffstring_op upper
+  |
+  |//-- Bit library --------------------------------------------------------
+  |
+  |->vm_tobit_fb:
+  |  beqz TMP1, ->fff_fallback
+  |.if FPU
+  |.  ldc1 FARG1, 0(BASE)
+  |  add.d FARG1, FARG1, TOBIT
+  |  mfc1 CRET1, FARG1
+  |  jr ra
+  |.  zextw CRET1, CRET1
+  |.else
+  |// FP number to bit conversion for soft-float.
+  |->vm_tobit:
+  |  dsll TMP0, CARG1, 1
+  |  li CARG3, 1076
+  |  dsrl AT, TMP0, 53
+  |  dsubu CARG3, CARG3, AT
+  |  sltiu AT, CARG3, 54
+  |  beqz AT, >1
+  |.  dextm TMP0, TMP0, 0, 20
+  |  dinsu TMP0, AT, 21, 21
+  |  slt AT, CARG1, r0
+  |  dsrlv CRET1, TMP0, CARG3
+  |  dsubu TMP0, r0, CRET1
+  |.if MIPSR6
+  |  selnez TMP0, TMP0, AT
+  |  seleqz CRET1, CRET1, AT
+  |  or CRET1, CRET1, TMP0
+  |.else
+  |  movn CRET1, TMP0, AT
+  |.endif
+  |  jr ra
+  |.  zextw CRET1, CRET1
+  |1:
+  |  jr ra
+  |.  move CRET1, r0
+  |
+  |// FP number to int conversion with a check for soft-float.
+  |// Modifies CARG1, CRET1, CRET2, TMP0, AT.
+  |->vm_tointg:
+  |.if JIT
+  |  dsll CRET2, CARG1, 1
+  |  beqz CRET2, >2
+  |.  li TMP0, 1076
+  |  dsrl AT, CRET2, 53
+  |  dsubu TMP0, TMP0, AT
+  |  sltiu AT, TMP0, 54
+  |  beqz AT, >1
+  |.  dextm CRET2, CRET2, 0, 20
+  |  dinsu CRET2, AT, 21, 21
+  |  slt AT, CARG1, r0
+  |  dsrlv CRET1, CRET2, TMP0
+  |  dsubu CARG1, r0, CRET1
+  |.if MIPSR6
+  |  seleqz CRET1, CRET1, AT
+  |  selnez CARG1, CARG1, AT
+  |  or CRET1, CRET1, CARG1
+  |.else
+  |  movn CRET1, CARG1, AT
+  |.endif
+  |  li CARG1, 64
+  |  subu TMP0, CARG1, TMP0
+  |  dsllv CRET2, CRET2, TMP0	// Integer check.
+  |  sextw AT, CRET1
+  |  xor AT, CRET1, AT		// Range check.
+  |.if MIPSR6
+  |  seleqz AT, AT, CRET2
+  |  selnez CRET2, CRET2, CRET2
+  |  jr ra
+  |.  or CRET2, AT, CRET2
+  |.else
+  |  jr ra
+  |.  movz CRET2, AT, CRET2
+  |.endif
+  |1:
+  |  jr ra
+  |.  li CRET2, 1
+  |2:
+  |  jr ra
+  |.  move CRET1, r0
+  |.endif
+  |.endif
+  |
+  |.macro .ffunc_bit, name
+  |  .ffunc_1 bit_..name
+  |  gettp TMP0, CARG1
+  |  beq TMP0, TISNUM, >6
+  |.  zextw CRET1, CARG1
+  |  bal ->vm_tobit_fb
+  |.  sltiu TMP1, TMP0, LJ_TISNUM
+  |6:
+  |.endmacro
+  |
+  |.macro .ffunc_bit_op, name, bins
+  |  .ffunc_bit name
+  |  daddiu TMP2, BASE, 8
+  |  daddu TMP3, BASE, NARGS8:RC
+  |1:
+  |  beq TMP2, TMP3, ->fff_resi
+  |.  ld CARG1, 0(TMP2)
+  |  gettp TMP0, CARG1
+  |.if FPU
+  |  bne TMP0, TISNUM, >2
+  |.  daddiu TMP2, TMP2, 8
+  |  zextw CARG1, CARG1
+  |  b <1
+  |.  bins CRET1, CRET1, CARG1
+  |2:
+  |   ldc1 FARG1, -8(TMP2)
+  |  sltiu AT, TMP0, LJ_TISNUM
+  |  beqz AT, ->fff_fallback
+  |.  add.d FARG1, FARG1, TOBIT
+  |  mfc1 CARG1, FARG1
+  |  zextw CARG1, CARG1
+  |  b <1
+  |.  bins CRET1, CRET1, CARG1
+  |.else
+  |  beq TMP0, TISNUM, >2
+  |.  move CRET2, CRET1
+  |  bal ->vm_tobit_fb
+  |.  sltiu TMP1, TMP0, LJ_TISNUM
+  |  move CARG1, CRET2
+  |2:
+  |  zextw CARG1, CARG1
+  |  bins CRET1, CRET1, CARG1
+  |  b <1
+  |.  daddiu TMP2, TMP2, 8
+  |.endif
+  |.endmacro
+  |
+  |.ffunc_bit_op band, and
+  |.ffunc_bit_op bor, or
+  |.ffunc_bit_op bxor, xor
+  |
+  |.ffunc_bit bswap
+  |  dsrl TMP0, CRET1, 8
+  |   dsrl TMP1, CRET1, 24
+  |  andi TMP2, TMP0, 0xff00
+  |   dins TMP1, CRET1, 24, 31
+  |  dins TMP2, TMP0, 16, 23
+  |  b ->fff_resi
+  |.  or CRET1, TMP1, TMP2
+  |
+  |.ffunc_bit bnot
+  |  not CRET1, CRET1
+  |  b ->fff_resi
+  |.  zextw CRET1, CRET1
+  |
+  |.macro .ffunc_bit_sh, name, shins, shmod
+  |  .ffunc_2 bit_..name
+  |  gettp TMP0, CARG1
+  |  beq TMP0, TISNUM, >1
+  |.  nop
+  |  bal ->vm_tobit_fb
+  |.  sltiu TMP1, TMP0, LJ_TISNUM
+  |  move CARG1, CRET1
+  |1:
+  |  gettp TMP0, CARG2
+  |  bne TMP0, TISNUM, ->fff_fallback
+  |.  zextw CARG2, CARG2
+  |  sextw CARG1, CARG1
+  |.if shmod == 1
+  |  negu CARG2, CARG2
+  |.endif
+  |  shins CRET1, CARG1, CARG2
+  |  b ->fff_resi
+  |.  zextw CRET1, CRET1
+  |.endmacro
+  |
+  |.ffunc_bit_sh lshift, sllv, 0
+  |.ffunc_bit_sh rshift, srlv, 0
+  |.ffunc_bit_sh arshift, srav, 0
+  |.ffunc_bit_sh rol, rotrv, 1
+  |.ffunc_bit_sh ror, rotrv, 0
+  |
+  |.ffunc_bit tobit
+  |->fff_resi:
+  |  ld PC, FRAME_PC(BASE)
+  |  daddiu RA, BASE, -16
+  |  settp CRET1, TISNUM
+  |  b ->fff_res1
+  |.  sd CRET1, -16(BASE)
+  |
+  |//-----------------------------------------------------------------------
+  |->fff_fallback:			// Call fast function fallback handler.
+  |  // BASE = new base, RB = CFUNC, RC = nargs*8
+  |  ld TMP3, CFUNC:RB->f
+  |    daddu TMP1, BASE, NARGS8:RC
+  |   ld PC, FRAME_PC(BASE)		// Fallback may overwrite PC.
+  |    daddiu TMP0, TMP1, 8*LUA_MINSTACK
+  |     ld TMP2, L->maxstack
+  |   sd PC, SAVE_PC			// Redundant (but a defined value).
+  |  sltu AT, TMP2, TMP0
+  |     sd BASE, L->base
+  |    sd TMP1, L->top
+  |  bnez AT, >5			// Need to grow stack.
+  |.  move CFUNCADDR, TMP3
+  |  jalr TMP3				// (lua_State *L)
+  |.  move CARG1, L
+  |  // Either throws an error, or recovers and returns -1, 0 or nresults+1.
+  |  ld BASE, L->base
+  |   sll RD, CRET1, 3
+  |  bgtz CRET1, ->fff_res		// Returned nresults+1?
+  |.  daddiu RA, BASE, -16
+  |1:  // Returned 0 or -1: retry fast path.
+  |   ld LFUNC:RB, FRAME_FUNC(BASE)
+  |  ld TMP0, L->top
+  |   cleartp LFUNC:RB
+  |  bnez CRET1, ->vm_call_tail		// Returned -1?
+  |.  dsubu NARGS8:RC, TMP0, BASE
+  |  ins_callt				// Returned 0: retry fast path.
+  |
+  |// Reconstruct previous base for vmeta_call during tailcall.
+  |->vm_call_tail:
+  |  andi TMP0, PC, FRAME_TYPE
+  |   li AT, -4
+  |  bnez TMP0, >3
+  |.  and TMP1, PC, AT
+  |  lbu TMP1, OFS_RA(PC)
+  |  sll TMP1, TMP1, 3
+  |  addiu TMP1, TMP1, 16
+  |3:
+  |  b ->vm_call_dispatch		// Resolve again for tailcall.
+  |.  dsubu TMP2, BASE, TMP1
+  |
+  |5:  // Grow stack for fallback handler.
+  |  load_got lj_state_growstack
+  |  li CARG2, LUA_MINSTACK
+  |  call_intern lj_state_growstack	// (lua_State *L, int n)
+  |.  move CARG1, L
+  |  ld BASE, L->base
+  |  b <1
+  |.  li CRET1, 0			// Force retry.
+  |
+  |->fff_gcstep:			// Call GC step function.
+  |  // BASE = new base, RC = nargs*8
+  |  move MULTRES, ra
+  |  load_got lj_gc_step
+  |   sd BASE, L->base
+  |  daddu TMP0, BASE, NARGS8:RC
+  |   sd PC, SAVE_PC			// Redundant (but a defined value).
+  |  sd TMP0, L->top
+  |  call_intern lj_gc_step		// (lua_State *L)
+  |.  move CARG1, L
+  |   ld BASE, L->base
+  |  move ra, MULTRES
+  |    ld TMP0, L->top
+  |  ld CFUNC:RB, FRAME_FUNC(BASE)
+  |  cleartp CFUNC:RB
+  |  jr ra
+  |.  dsubu NARGS8:RC, TMP0, BASE
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Special dispatch targets -------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_record:				// Dispatch target for recording phase.
+  |.if JIT
+  |  lbu TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  andi AT, TMP3, HOOK_VMEVENT	// No recording while in vmevent.
+  |  bnez AT, >5
+  |  // Decrement the hookcount for consistency, but always do the call.
+  |.  lw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  andi AT, TMP3, HOOK_ACTIVE
+  |  bnez AT, >1
+  |.  addiu TMP2, TMP2, -1
+  |  andi AT, TMP3, LUA_MASKLINE|LUA_MASKCOUNT
+  |  beqz AT, >1
+  |.  nop
+  |  b >1
+  |.  sw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |.endif
+  |
+  |->vm_rethook:			// Dispatch target for return hooks.
+  |  lbu TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  andi AT, TMP3, HOOK_ACTIVE		// Hook already active?
+  |  beqz AT, >1
+  |5:  // Re-dispatch to static ins.
+  |.  ld AT, GG_DISP2STATIC(TMP0)	// Assumes TMP0 holds DISPATCH+OP*4.
+  |  jr AT
+  |.  nop
+  |
+  |->vm_inshook:			// Dispatch target for instr/line hooks.
+  |  lbu TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  lw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  andi AT, TMP3, HOOK_ACTIVE		// Hook already active?
+  |  bnez AT, <5
+  |.  andi AT, TMP3, LUA_MASKLINE|LUA_MASKCOUNT
+  |  beqz AT, <5
+  |.  addiu TMP2, TMP2, -1
+  |  beqz TMP2, >1
+  |.  sw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  andi AT, TMP3, LUA_MASKLINE
+  |  beqz AT, <5
+  |1:
+  |.  load_got lj_dispatch_ins
+  |   sw MULTRES, SAVE_MULTRES
+  |  move CARG2, PC
+  |   sd BASE, L->base
+  |  // SAVE_PC must hold the _previous_ PC. The callee updates it with PC.
+  |  call_intern lj_dispatch_ins	// (lua_State *L, const BCIns *pc)
+  |.  move CARG1, L
+  |3:
+  |  ld BASE, L->base
+  |4:  // Re-dispatch to static ins.
+  |  lw INS, -4(PC)
+  |  decode_OP8a TMP1, INS
+  |  decode_OP8b TMP1
+  |  daddu TMP0, DISPATCH, TMP1
+  |   decode_RD8a RD, INS
+  |  ld AT, GG_DISP2STATIC(TMP0)
+  |   decode_RA8a RA, INS
+  |   decode_RD8b RD
+  |  jr AT
+  |   decode_RA8b RA
+  |
+  |->cont_hook:				// Continue from hook yield.
+  |  daddiu PC, PC, 4
+  |  b <4
+  |.  lw MULTRES, -24+LO(RB)		// Restore MULTRES for *M ins.
+  |
+  |->vm_hotloop:			// Hot loop counter underflow.
+  |.if JIT
+  |  ld LFUNC:TMP1, FRAME_FUNC(BASE)
+  |   daddiu CARG1, DISPATCH, GG_DISP2J
+  |  cleartp LFUNC:TMP1
+  |   sd PC, SAVE_PC
+  |  ld TMP1, LFUNC:TMP1->pc
+  |   move CARG2, PC
+  |   sd L, DISPATCH_J(L)(DISPATCH)
+  |  lbu TMP1, PC2PROTO(framesize)(TMP1)
+  |  load_got lj_trace_hot
+  |   sd BASE, L->base
+  |  dsll TMP1, TMP1, 3
+  |  daddu TMP1, BASE, TMP1
+  |  call_intern lj_trace_hot		// (jit_State *J, const BCIns *pc)
+  |.  sd TMP1, L->top
+  |  b <3
+  |.  nop
+  |.endif
+  |
+  |
+  |->vm_callhook:			// Dispatch target for call hooks.
+  |.if JIT
+  |  b >1
+  |.endif
+  |.  move CARG2, PC
+  |
+  |->vm_hotcall:			// Hot call counter underflow.
+  |.if JIT
+  |  ori CARG2, PC, 1
+  |1:
+  |.endif
+  |  load_got lj_dispatch_call
+  |  daddu TMP0, BASE, RC
+  |   sd PC, SAVE_PC
+  |   sd BASE, L->base
+  |  dsubu RA, RA, BASE
+  |   sd TMP0, L->top
+  |  call_intern lj_dispatch_call	// (lua_State *L, const BCIns *pc)
+  |.  move CARG1, L
+  |  // Returns ASMFunction.
+  |  ld BASE, L->base
+  |   ld TMP0, L->top
+  |   sd r0, SAVE_PC			// Invalidate for subsequent line hook.
+  |  dsubu NARGS8:RC, TMP0, BASE
+  |  daddu RA, BASE, RA
+  |  ld LFUNC:RB, FRAME_FUNC(BASE)
+  |  cleartp LFUNC:RB
+  |  jr CRET1
+  |.  lw INS, -4(PC)
+  |
+  |->cont_stitch:			// Trace stitching.
+  |.if JIT
+  |  // RA = resultptr, RB = meta base
+  |  lw INS, -4(PC)
+  |    ld TRACE:TMP2, -40(RB)		// Save previous trace.
+  |  decode_RA8a RC, INS
+  |   daddiu AT, MULTRES, -8
+  |    cleartp TRACE:TMP2
+  |  decode_RA8b RC
+  |   beqz AT, >2
+  |. daddu RC, BASE, RC			// Call base.
+  |1:  // Move results down.
+  |  ld CARG1, 0(RA)
+  |   daddiu AT, AT, -8
+  |    daddiu RA, RA, 8
+  |  sd CARG1, 0(RC)
+  |   bnez AT, <1
+  |.   daddiu RC, RC, 8
+  |2:
+  |   decode_RA8a RA, INS
+  |    decode_RB8a RB, INS
+  |   decode_RA8b RA
+  |    decode_RB8b RB
+  |   daddu RA, RA, RB
+  |   daddu RA, BASE, RA
+  |3:
+  |   sltu AT, RC, RA
+  |   bnez AT, >9			// More results wanted?
+  |.   nop
+  |
+  |  lhu TMP3, TRACE:TMP2->traceno
+  |  lhu RD, TRACE:TMP2->link
+  |  beq RD, TMP3, ->cont_nop		// Blacklisted.
+  |.  load_got lj_dispatch_stitch
+  |  bnez RD, =>BC_JLOOP		// Jump to stitched trace.
+  |.  sll RD, RD, 3
+  |
+  |  // Stitch a new trace to the previous trace.
+  |  sw TMP3, DISPATCH_J(exitno)(DISPATCH)
+  |  sd L, DISPATCH_J(L)(DISPATCH)
+  |  sd BASE, L->base
+  |  daddiu CARG1, DISPATCH, GG_DISP2J
+  |  call_intern lj_dispatch_stitch	// (jit_State *J, const BCIns *pc)
+  |.  move CARG2, PC
+  |  b ->cont_nop
+  |.  ld BASE, L->base
+  |
+  |9:
+  |  sd TISNIL, 0(RC)
+  |  b <3
+  |.  daddiu RC, RC, 8
+  |.endif
+  |
+  |->vm_profhook:			// Dispatch target for profiler hook.
+#if LJ_HASPROFILE
+  |  load_got lj_dispatch_profile
+  |   sw MULTRES, SAVE_MULTRES
+  |  move CARG2, PC
+  |   sd BASE, L->base
+  |  call_intern lj_dispatch_profile	// (lua_State *L, const BCIns *pc)
+  |.  move CARG1, L
+  |  // HOOK_PROFILE is off again, so re-dispatch to dynamic instruction.
+  |  daddiu PC, PC, -4
+  |  b ->cont_nop
+  |.  ld BASE, L->base
+#endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Trace exit handler -------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro savex_, a, b
+  |.if FPU
+  |  sdc1 f..a, a*8(sp)
+  |  sdc1 f..b, b*8(sp)
+  |  sd r..a, 32*8+a*8(sp)
+  |  sd r..b, 32*8+b*8(sp)
+  |.else
+  |  sd r..a, a*8(sp)
+  |  sd r..b, b*8(sp)
+  |.endif
+  |.endmacro
+  |
+  |->vm_exit_handler:
+  |.if JIT
+  |.if FPU
+  |  daddiu sp, sp, -(32*8+32*8)
+  |.else
+  |  daddiu sp, sp, -(32*8)
+  |.endif
+  |  savex_ 0, 1
+  |  savex_ 2, 3
+  |  savex_ 4, 5
+  |  savex_ 6, 7
+  |  savex_ 8, 9
+  |  savex_ 10, 11
+  |  savex_ 12, 13
+  |  savex_ 14, 15
+  |  savex_ 16, 17
+  |  savex_ 18, 19
+  |  savex_ 20, 21
+  |  savex_ 22, 23
+  |  savex_ 24, 25
+  |  savex_ 26, 27
+  |  savex_ 28, 30
+  |.if FPU
+  |  sdc1 f29, 29*8(sp)
+  |  sdc1 f31, 31*8(sp)
+  |  sd r0, 32*8+31*8(sp)		// Clear RID_TMP.
+  |  daddiu TMP2, sp, 32*8+32*8		// Recompute original value of sp.
+  |  sd TMP2, 32*8+29*8(sp)		// Store sp in RID_SP
+  |.else
+  |  sd r0, 31*8(sp)			// Clear RID_TMP.
+  |  daddiu TMP2, sp, 32*8		// Recompute original value of sp.
+  |  sd TMP2, 29*8(sp)			// Store sp in RID_SP
+  |.endif
+  |  li_vmstate EXIT
+  |  daddiu DISPATCH, JGL, -GG_DISP2G-32768
+  |  lw TMP1, 0(TMP2)			// Load exit number.
+  |  st_vmstate
+  |  ld L, DISPATCH_GL(cur_L)(DISPATCH)
+  |   ld BASE, DISPATCH_GL(jit_base)(DISPATCH)
+  |  load_got lj_trace_exit
+  |  sd L, DISPATCH_J(L)(DISPATCH)
+  |  sw ra, DISPATCH_J(parent)(DISPATCH)  // Store trace number.
+  |   sd BASE, L->base
+  |  sw TMP1, DISPATCH_J(exitno)(DISPATCH)  // Store exit number.
+  |  daddiu CARG1, DISPATCH, GG_DISP2J
+  |   sd r0, DISPATCH_GL(jit_base)(DISPATCH)
+  |  call_intern lj_trace_exit		// (jit_State *J, ExitState *ex)
+  |.  move CARG2, sp
+  |  // Returns MULTRES (unscaled) or negated error code.
+  |  ld TMP1, L->cframe
+  |  li AT, -4
+  |   ld BASE, L->base
+  |  and sp, TMP1, AT
+  |   ld PC, SAVE_PC			// Get SAVE_PC.
+  |  b >1
+  |.  sd L, SAVE_L			// Set SAVE_L (on-trace resume/yield).
+  |.endif
+  |->vm_exit_interp:
+  |.if JIT
+  |  // CRET1 = MULTRES or negated error code, BASE, PC and JGL set.
+  |  ld L, SAVE_L
+  |   daddiu DISPATCH, JGL, -GG_DISP2G-32768
+  |  sd BASE, L->base
+  |1:
+  |  bltz CRET1, >9			// Check for error from exit.
+  |.  ld LFUNC:RB, FRAME_FUNC(BASE)
+  |    .FPU lui TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |  dsll MULTRES, CRET1, 3
+  |  cleartp LFUNC:RB
+  |  sw MULTRES, SAVE_MULTRES
+  |    li TISNIL, LJ_TNIL
+  |     li TISNUM, LJ_TISNUM		// Setup type comparison constants.
+  |    .FPU mtc1 TMP3, TOBIT
+  |  ld TMP1, LFUNC:RB->pc
+  |   sd r0, DISPATCH_GL(jit_base)(DISPATCH)
+  |  ld KBASE, PC2PROTO(k)(TMP1)
+  |    .FPU cvt.d.s TOBIT, TOBIT
+  |  // Modified copy of ins_next which handles function header dispatch, too.
+  |  lw INS, 0(PC)
+  |   daddiu PC, PC, 4
+  |    // Assumes TISNIL == ~LJ_VMST_INTERP == -1
+  |    sw TISNIL, DISPATCH_GL(vmstate)(DISPATCH)
+  |  decode_OP8a TMP1, INS
+  |  decode_OP8b TMP1
+  |    sltiu TMP2, TMP1, BC_FUNCF*8
+  |  daddu TMP0, DISPATCH, TMP1
+  |   decode_RD8a RD, INS
+  |  ld AT, 0(TMP0)
+  |   decode_RA8a RA, INS
+  |    beqz TMP2, >2
+  |.  decode_RA8b RA
+  |  jr AT
+  |.  decode_RD8b RD
+  |2:
+  |  sltiu TMP2, TMP1, (BC_FUNCC+2)*8	// Fast function?
+  |  bnez TMP2, >3
+  |.  ld TMP1, FRAME_PC(BASE)
+  |  // Check frame below fast function.
+  |  andi TMP0, TMP1, FRAME_TYPE
+  |  bnez TMP0, >3			// Trace stitching continuation?
+  |.  nop
+  |  // Otherwise set KBASE for Lua function below fast function.
+  |  lw TMP2, -4(TMP1)
+  |  decode_RA8a TMP0, TMP2
+  |  decode_RA8b TMP0
+  |  dsubu TMP1, BASE, TMP0
+  |  ld LFUNC:TMP2, -32(TMP1)
+  |  cleartp LFUNC:TMP2
+  |  ld TMP1, LFUNC:TMP2->pc
+  |  ld KBASE, PC2PROTO(k)(TMP1)
+  |3:
+  |  daddiu RC, MULTRES, -8
+  |  jr AT
+  |.  daddu RA, RA, BASE
+  |
+  |9:  // Rethrow error from the right C frame.
+  |  load_got lj_err_trace
+  |  sub CARG2, r0, CRET1
+  |  call_intern lj_err_trace		// (lua_State *L, int errcode)
+  |.  move CARG1, L
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Math helper functions ----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Hard-float round to integer.
+  |// Modifies AT, TMP0, FRET1, FRET2, f4. Keeps all others incl. FARG1.
+  |// MIPSR6: Modifies FTMP1, too.
+  |.macro vm_round_hf, func
+  |  lui TMP0, 0x4330			// Hiword of 2^52 (double).
+  |  dsll TMP0, TMP0, 32
+  |  dmtc1 TMP0, f4
+  |  abs.d FRET2, FARG1			// |x|
+  |    dmfc1 AT, FARG1
+  |.if MIPSR6
+  |  cmp.lt.d FTMP1, FRET2, f4
+  |   add.d FRET1, FRET2, f4		// (|x| + 2^52) - 2^52
+  |  bc1eqz FTMP1, >1			// Truncate only if |x| < 2^52.
+  |.else
+  |  c.olt.d 0, FRET2, f4
+  |   add.d FRET1, FRET2, f4		// (|x| + 2^52) - 2^52
+  |  bc1f 0, >1				// Truncate only if |x| < 2^52.
+  |.endif
+  |.  sub.d FRET1, FRET1, f4
+  |    slt AT, AT, r0
+  |.if "func" == "ceil"
+  |   lui TMP0, 0xbff0			// Hiword of -1 (double). Preserves -0.
+  |.else
+  |   lui TMP0, 0x3ff0			// Hiword of +1 (double).
+  |.endif
+  |.if "func" == "trunc"
+  |   dsll TMP0, TMP0, 32
+  |   dmtc1 TMP0, f4
+  |.if MIPSR6
+  |  cmp.lt.d FTMP1, FRET2, FRET1	// |x| < result?
+  |   sub.d FRET2, FRET1, f4
+  |  sel.d  FTMP1, FRET1, FRET2		// If yes, subtract +1.
+  |  dmtc1 AT, FRET1
+  |  neg.d FRET2, FTMP1
+  |  jr ra
+  |.  sel.d FRET1, FTMP1, FRET2		// Merge sign bit back in.
+  |.else
+  |  c.olt.d 0, FRET2, FRET1		// |x| < result?
+  |   sub.d FRET2, FRET1, f4
+  |  movt.d FRET1, FRET2, 0		// If yes, subtract +1.
+  |  neg.d FRET2, FRET1
+  |  jr ra
+  |.  movn.d FRET1, FRET2, AT		// Merge sign bit back in.
+  |.endif
+  |.else
+  |  neg.d FRET2, FRET1
+  |   dsll TMP0, TMP0, 32
+  |   dmtc1 TMP0, f4
+  |.if MIPSR6
+  |  dmtc1 AT, FTMP1
+  |  sel.d FTMP1, FRET1, FRET2
+  |.if "func" == "ceil"
+  |  cmp.lt.d FRET1, FTMP1, FARG1	// x > result?
+  |.else
+  |  cmp.lt.d FRET1, FARG1, FTMP1	// x < result?
+  |.endif
+  |   sub.d FRET2, FTMP1, f4		// If yes, subtract +-1.
+  |  jr ra
+  |.  sel.d FRET1, FTMP1, FRET2
+  |.else
+  |  movn.d FRET1, FRET2, AT		// Merge sign bit back in.
+  |.if "func" == "ceil"
+  |  c.olt.d 0, FRET1, FARG1		// x > result?
+  |.else
+  |  c.olt.d 0, FARG1, FRET1		// x < result?
+  |.endif
+  |   sub.d FRET2, FRET1, f4		// If yes, subtract +-1.
+  |  jr ra
+  |.  movt.d FRET1, FRET2, 0
+  |.endif
+  |.endif
+  |1:
+  |  jr ra
+  |.  mov.d FRET1, FARG1
+  |.endmacro
+  |
+  |.macro vm_round, func
+  |.if FPU
+  |  vm_round_hf, func
+  |.endif
+  |.endmacro
+  |
+  |->vm_floor:
+  |  vm_round floor
+  |->vm_ceil:
+  |  vm_round ceil
+  |->vm_trunc:
+  |.if JIT
+  |  vm_round trunc
+  |.endif
+  |
+  |// Soft-float integer to number conversion.
+  |.macro sfi2d, ARG
+  |.if not FPU
+  |  beqz ARG, >9			// Handle zero first.
+  |.  sra TMP0, ARG, 31
+  |  xor TMP1, ARG, TMP0
+  |  dsubu TMP1, TMP1, TMP0		// Absolute value in TMP1.
+  |  dclz ARG, TMP1
+  |  addiu ARG, ARG, -11
+  |  li AT, 0x3ff+63-11-1
+  |   dsllv TMP1, TMP1, ARG		// Align mantissa left with leading 1.
+  |  subu ARG, AT, ARG			// Exponent - 1.
+  |  ins ARG, TMP0, 11, 11		// Sign | Exponent.
+  |  dsll ARG, ARG, 52			// Align left.
+  |  jr ra
+  |.  daddu ARG, ARG, TMP1		// Add mantissa, increment exponent.
+  |9:
+  |  jr ra
+  |.  nop
+  |.endif
+  |.endmacro
+  |
+  |// Input CARG1. Output: CARG1. Temporaries: AT, TMP0, TMP1.
+  |->vm_sfi2d_1:
+  |  sfi2d CARG1
+  |
+  |// Input CARG2. Output: CARG2. Temporaries: AT, TMP0, TMP1.
+  |->vm_sfi2d_2:
+  |  sfi2d CARG2
+  |
+  |// Soft-float comparison. Equivalent to c.eq.d.
+  |// Input: CARG*. Output: CRET1. Temporaries: AT, TMP0, TMP1.
+  |->vm_sfcmpeq:
+  |.if not FPU
+  |  dsll AT, CARG1, 1
+  |  dsll TMP0, CARG2, 1
+  |  or TMP1, AT, TMP0
+  |  beqz TMP1, >8			// Both args +-0: return 1.
+  |.  lui TMP1, 0xffe0
+  |  dsll TMP1, TMP1, 32
+  |   sltu AT, TMP1, AT
+  |   sltu TMP0, TMP1, TMP0
+  |  or TMP1, AT, TMP0
+  |  bnez TMP1, >9			// Either arg is NaN: return 0;
+  |.  xor AT, CARG1, CARG2
+  |  jr ra
+  |.  sltiu CRET1, AT, 1		// Same values: return 1.
+  |8:
+  |  jr ra
+  |.  li CRET1, 1
+  |9:
+  |  jr ra
+  |.  li CRET1, 0
+  |.endif
+  |
+  |// Soft-float comparison. Equivalent to c.ult.d and c.olt.d.
+  |// Input: CARG1, CARG2. Output: CRET1. Temporaries: AT, TMP0, TMP1, CRET2.
+  |->vm_sfcmpult:
+  |.if not FPU
+  |  b >1
+  |.  li CRET2, 1
+  |.endif
+  |
+  |->vm_sfcmpolt:
+  |.if not FPU
+  |  li CRET2, 0
+  |1:
+  |  dsll AT, CARG1, 1
+  |  dsll TMP0, CARG2, 1
+  |  or TMP1, AT, TMP0
+  |  beqz TMP1, >8			// Both args +-0: return 0.
+  |.  lui TMP1, 0xffe0
+  |  dsll TMP1, TMP1, 32
+  |   sltu AT, TMP1, AT
+  |   sltu TMP0, TMP1, TMP0
+  |  or TMP1, AT, TMP0
+  |  bnez TMP1, >9			// Either arg is NaN: return 0 or 1;
+  |.  and AT, CARG1, CARG2
+  |  bltz AT, >5			// Both args negative?
+  |.  nop
+  |  jr ra
+  |.  slt CRET1, CARG1, CARG2
+  |5:  // Swap conditions if both operands are negative.
+  |  jr ra
+  |.  slt CRET1, CARG2, CARG1
+  |8:
+  |  jr ra
+  |.  li CRET1, 0
+  |9:
+  |  jr ra
+  |.  move CRET1, CRET2
+  |.endif
+  |
+  |->vm_sfcmpogt:
+  |.if not FPU
+  |  dsll AT, CARG2, 1
+  |  dsll TMP0, CARG1, 1
+  |  or TMP1, AT, TMP0
+  |  beqz TMP1, >8			// Both args +-0: return 0.
+  |.  lui TMP1, 0xffe0
+  |  dsll TMP1, TMP1, 32
+  |   sltu AT, TMP1, AT
+  |   sltu TMP0, TMP1, TMP0
+  |  or TMP1, AT, TMP0
+  |  bnez TMP1, >9			// Either arg is NaN: return 0 or 1;
+  |.  and AT, CARG2, CARG1
+  |  bltz AT, >5			// Both args negative?
+  |.  nop
+  |  jr ra
+  |.  slt CRET1, CARG2, CARG1
+  |5:  // Swap conditions if both operands are negative.
+  |  jr ra
+  |.  slt CRET1, CARG1, CARG2
+  |8:
+  |  jr ra
+  |.  li CRET1, 0
+  |9:
+  |  jr ra
+  |.  li CRET1, 0
+  |.endif
+  |
+  |// Soft-float comparison. Equivalent to c.ole.d a, b or c.ole.d b, a.
+  |// Input: CARG1, CARG2, TMP3. Output: CRET1. Temporaries: AT, TMP0, TMP1.
+  |->vm_sfcmpolex:
+  |.if not FPU
+  |  dsll AT, CARG1, 1
+  |  dsll TMP0, CARG2, 1
+  |  or TMP1, AT, TMP0
+  |  beqz TMP1, >8			// Both args +-0: return 1.
+  |.  lui TMP1, 0xffe0
+  |  dsll TMP1, TMP1, 32
+  |   sltu AT, TMP1, AT
+  |   sltu TMP0, TMP1, TMP0
+  |  or TMP1, AT, TMP0
+  |  bnez TMP1, >9			// Either arg is NaN: return 0;
+  |.  and AT, CARG1, CARG2
+  |  xor AT, AT, TMP3
+  |  bltz AT, >5			// Both args negative?
+  |.  nop
+  |  jr ra
+  |.  slt CRET1, CARG2, CARG1
+  |5:  // Swap conditions if both operands are negative.
+  |  jr ra
+  |.  slt CRET1, CARG1, CARG2
+  |8:
+  |  jr ra
+  |.  li CRET1, 1
+  |9:
+  |  jr ra
+  |.  li CRET1, 0
+  |.endif
+  |
+  |.macro sfmin_max, name, fpcall
+  |->vm_sf .. name:
+  |.if JIT and not FPU
+  |  move TMP2, ra
+  |  bal ->fpcall
+  |.  nop
+  |  move ra, TMP2
+  |  move TMP0, CRET1
+  |  move CRET1, CARG1
+  |.if MIPSR6
+  |  selnez CRET1, CRET1, TMP0
+  |  seleqz TMP0, CARG2, TMP0
+  |  jr ra
+  |.  or CRET1, CRET1, TMP0
+  |.else
+  |  jr ra
+  |.  movz CRET1, CARG2, TMP0
+  |.endif
+  |.endif
+  |.endmacro
+  |
+  |  sfmin_max min, vm_sfcmpolt
+  |  sfmin_max max, vm_sfcmpogt
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Miscellaneous functions --------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.define NEXT_TAB,		TAB:CARG1
+  |.define NEXT_IDX,		CARG2
+  |.define NEXT_ASIZE,		CARG3
+  |.define NEXT_NIL,		CARG4
+  |.define NEXT_TMP0,		r12
+  |.define NEXT_TMP1,		r13
+  |.define NEXT_TMP2,		r14
+  |.define NEXT_RES_VK,		CRET1
+  |.define NEXT_RES_IDX,	CRET2
+  |.define NEXT_RES_PTR,	sp
+  |.define NEXT_RES_VAL,	0(sp)
+  |.define NEXT_RES_KEY,	8(sp)
+  |
+  |// TValue *lj_vm_next(GCtab *t, uint32_t idx)
+  |// Next idx returned in CRET2.
+  |->vm_next:
+  |.if JIT and ENDIAN_LE
+  |   lw NEXT_ASIZE, NEXT_TAB->asize
+  |  ld NEXT_TMP0, NEXT_TAB->array
+  |    li NEXT_NIL, LJ_TNIL
+  |1:  // Traverse array part.
+  |   sltu AT, NEXT_IDX, NEXT_ASIZE
+  |    sll NEXT_TMP1, NEXT_IDX, 3
+  |   beqz AT, >5
+  |.   daddu NEXT_TMP1, NEXT_TMP0, NEXT_TMP1
+  |   li AT, LJ_TISNUM
+  |  ld NEXT_TMP2, 0(NEXT_TMP1)
+  |   dsll AT, AT, 47
+  |   or NEXT_TMP1, NEXT_IDX, AT
+  |  beq NEXT_TMP2, NEXT_NIL, <1
+  |.  addiu NEXT_IDX, NEXT_IDX, 1
+  |  sd NEXT_TMP2, NEXT_RES_VAL
+  |   sd NEXT_TMP1, NEXT_RES_KEY
+  |  move NEXT_RES_VK, NEXT_RES_PTR
+  |  jr ra
+  |.  move NEXT_RES_IDX, NEXT_IDX
+  |
+  |5:  // Traverse hash part.
+  |  subu NEXT_RES_IDX, NEXT_IDX, NEXT_ASIZE
+  |   ld NODE:NEXT_RES_VK, NEXT_TAB->node
+  |    sll NEXT_TMP2, NEXT_RES_IDX, 5
+  |  lw NEXT_TMP0, NEXT_TAB->hmask
+  |    sll AT, NEXT_RES_IDX, 3
+  |    subu AT, NEXT_TMP2, AT
+  |   daddu NODE:NEXT_RES_VK, NODE:NEXT_RES_VK, AT
+  |6:
+  |  sltu AT, NEXT_TMP0, NEXT_RES_IDX
+  |  bnez AT, >8
+  |.  nop
+  |  ld NEXT_TMP2, NODE:NEXT_RES_VK->val
+  |  bne NEXT_TMP2, NEXT_NIL, >9
+  |.  addiu NEXT_RES_IDX, NEXT_RES_IDX, 1
+  |  // Skip holes in hash part.
+  |  b <6
+  |.  daddiu NODE:NEXT_RES_VK, NODE:NEXT_RES_VK, sizeof(Node)
+  |
+  |8:  // End of iteration. Set the key to nil (not the value).
+  |  sd NEXT_NIL, NEXT_RES_KEY
+  |  move NEXT_RES_VK, NEXT_RES_PTR
+  |9:
+  |  jr ra
+  |.  addu NEXT_RES_IDX, NEXT_RES_IDX, NEXT_ASIZE
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- FFI helper functions -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Handler for callback functions. Callback slot number in r1, g in r2.
+  |->vm_ffi_callback:
+  |.if FFI
+  |.type CTSTATE, CTState, PC
+  |  saveregs
+  |  ld CTSTATE, GL:r2->ctype_state
+  |   daddiu DISPATCH, r2, GG_G2DISP
+  |  load_got lj_ccallback_enter
+  |  sw r1, CTSTATE->cb.slot
+  |  sd CARG1, CTSTATE->cb.gpr[0]
+  |  .FPU sdc1 FARG1, CTSTATE->cb.fpr[0]
+  |  sd CARG2, CTSTATE->cb.gpr[1]
+  |  .FPU sdc1 FARG2, CTSTATE->cb.fpr[1]
+  |  sd CARG3, CTSTATE->cb.gpr[2]
+  |  .FPU sdc1 FARG3, CTSTATE->cb.fpr[2]
+  |  sd CARG4, CTSTATE->cb.gpr[3]
+  |  .FPU sdc1 FARG4, CTSTATE->cb.fpr[3]
+  |  sd CARG5, CTSTATE->cb.gpr[4]
+  |  .FPU sdc1 FARG5, CTSTATE->cb.fpr[4]
+  |  sd CARG6, CTSTATE->cb.gpr[5]
+  |  .FPU sdc1 FARG6, CTSTATE->cb.fpr[5]
+  |  sd CARG7, CTSTATE->cb.gpr[6]
+  |  .FPU sdc1 FARG7, CTSTATE->cb.fpr[6]
+  |  sd CARG8, CTSTATE->cb.gpr[7]
+  |  .FPU sdc1 FARG8, CTSTATE->cb.fpr[7]
+  |  daddiu TMP0, sp, CFRAME_SPACE
+  |  sd TMP0, CTSTATE->cb.stack
+  |  sd r0, SAVE_PC			// Any value outside of bytecode is ok.
+  |   move CARG2, sp
+  |  call_intern lj_ccallback_enter	// (CTState *cts, void *cf)
+  |.  move CARG1, CTSTATE
+  |  // Returns lua_State *.
+  |  ld BASE, L:CRET1->base
+  |  ld RC, L:CRET1->top
+  |   move L, CRET1
+  |     .FPU lui TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |  ld LFUNC:RB, FRAME_FUNC(BASE)
+  |     .FPU mtc1 TMP3, TOBIT
+  |      li TISNIL, LJ_TNIL
+  |       li TISNUM, LJ_TISNUM
+  |    li_vmstate INTERP
+  |  subu RC, RC, BASE
+  |   cleartp LFUNC:RB
+  |    st_vmstate
+  |     .FPU cvt.d.s TOBIT, TOBIT
+  |  ins_callt
+  |.endif
+  |
+  |->cont_ffi_callback:			// Return from FFI callback.
+  |.if FFI
+  |  load_got lj_ccallback_leave
+  |  ld CTSTATE, DISPATCH_GL(ctype_state)(DISPATCH)
+  |   sd BASE, L->base
+  |   sd RB, L->top
+  |  sd L, CTSTATE->L
+  |  move CARG2, RA
+  |  call_intern lj_ccallback_leave	// (CTState *cts, TValue *o)
+  |.  move CARG1, CTSTATE
+  |  .FPU ldc1 FRET1, CTSTATE->cb.fpr[0]
+  |  ld CRET1, CTSTATE->cb.gpr[0]
+  |  .FPU ldc1 FRET2, CTSTATE->cb.fpr[1]
+  |  b ->vm_leave_unw
+  |.  ld CRET2, CTSTATE->cb.gpr[1]
+  |.endif
+  |
+  |->vm_ffi_call:			// Call C function via FFI.
+  |  // Caveat: needs special frame unwinding, see below.
+  |.if FFI
+  |  .type CCSTATE, CCallState, CARG1
+  |  lw TMP1, CCSTATE->spadj
+  |   lbu CARG2, CCSTATE->nsp
+  |  move TMP2, sp
+  |  dsubu sp, sp, TMP1
+  |  sd ra, -8(TMP2)
+  |   sll CARG2, CARG2, 3
+  |  sd r16, -16(TMP2)
+  |  sd CCSTATE, -24(TMP2)
+  |  move r16, TMP2
+  |  daddiu TMP1, CCSTATE, offsetof(CCallState, stack)
+  |  move TMP2, sp
+  |  beqz CARG2, >2
+  |.  daddu TMP3, TMP1, CARG2
+  |1:
+  |   ld TMP0, 0(TMP1)
+  |  daddiu TMP1, TMP1, 8
+  |  sltu AT, TMP1, TMP3
+  |   sd TMP0, 0(TMP2)
+  |  bnez AT, <1
+  |.  daddiu TMP2, TMP2, 8
+  |2:
+  |  ld CFUNCADDR, CCSTATE->func
+  |  .FPU ldc1 FARG1, CCSTATE->gpr[0]
+  |  ld CARG2, CCSTATE->gpr[1]
+  |  .FPU ldc1 FARG2, CCSTATE->gpr[1]
+  |  ld CARG3, CCSTATE->gpr[2]
+  |  .FPU ldc1 FARG3, CCSTATE->gpr[2]
+  |  ld CARG4, CCSTATE->gpr[3]
+  |  .FPU ldc1 FARG4, CCSTATE->gpr[3]
+  |  ld CARG5, CCSTATE->gpr[4]
+  |  .FPU ldc1 FARG5, CCSTATE->gpr[4]
+  |  ld CARG6, CCSTATE->gpr[5]
+  |  .FPU ldc1 FARG6, CCSTATE->gpr[5]
+  |  ld CARG7, CCSTATE->gpr[6]
+  |  .FPU ldc1 FARG7, CCSTATE->gpr[6]
+  |  ld CARG8, CCSTATE->gpr[7]
+  |  .FPU ldc1 FARG8, CCSTATE->gpr[7]
+  |  jalr CFUNCADDR
+  |.  ld CARG1, CCSTATE->gpr[0]		// Do this last, since CCSTATE is CARG1.
+  |  ld CCSTATE:TMP1, -24(r16)
+  |  ld TMP2, -16(r16)
+  |  ld ra, -8(r16)
+  |  sd CRET1, CCSTATE:TMP1->gpr[0]
+  |  sd CRET2, CCSTATE:TMP1->gpr[1]
+  |.if FPU
+  |  sdc1 FRET1, CCSTATE:TMP1->fpr[0]
+  |  sdc1 FRET2, CCSTATE:TMP1->fpr[1]
+  |.else
+  |  sd CARG1, CCSTATE:TMP1->gpr[2]	// 2nd FP struct field for soft-float.
+  |.endif
+  |  move sp, r16
+  |  jr ra
+  |.  move r16, TMP2
+  |.endif
+  |// Note: vm_ffi_call must be the last function in this object file!
+  |
+  |//-----------------------------------------------------------------------
+}
+
+/* Generate the code for a single instruction. */
+static void build_ins(BuildCtx *ctx, BCOp op, int defop)
+{
+  int vk = 0;
+  |=>defop:
+
+  switch (op) {
+
+  /* -- Comparison ops ---------------------------------------------------- */
+
+  /* Remember: all ops branch for a true comparison, fall through otherwise. */
+
+  case BC_ISLT: case BC_ISGE: case BC_ISLE: case BC_ISGT:
+    |  // RA = src1*8, RD = src2*8, JMP with RD = target
+    |.macro bc_comp, FRA, FRD, ARGRA, ARGRD, movop, fmovop, fcomp, sfcomp
+    |  daddu RA, BASE, RA
+    |   daddu RD, BASE, RD
+    |  ld ARGRA, 0(RA)
+    |   ld ARGRD, 0(RD)
+    |    lhu TMP2, OFS_RD(PC)
+    |  gettp CARG3, ARGRA
+    |   gettp CARG4, ARGRD
+    |  bne CARG3, TISNUM, >2
+    |.   daddiu PC, PC, 4
+    |  bne CARG4, TISNUM, >5
+    |.   decode_RD4b TMP2
+    |  sextw ARGRA, ARGRA
+    |   sextw ARGRD, ARGRD
+    |    lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  slt AT, CARG1, CARG2
+    |    addu TMP2, TMP2, TMP3
+    |.if MIPSR6
+    |  movop TMP2, TMP2, AT
+    |.else
+    |  movop TMP2, r0, AT
+    |.endif
+    |1:
+    |  daddu PC, PC, TMP2
+    |  ins_next
+    |
+    |2:  // RA is not an integer.
+    |  sltiu AT, CARG3, LJ_TISNUM
+    |  beqz AT, ->vmeta_comp
+    |.   lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  sltiu AT, CARG4, LJ_TISNUM
+    |  beqz AT, >4
+    |.   decode_RD4b TMP2
+    |.if FPU
+    |  ldc1 FRA, 0(RA)
+    |   ldc1 FRD, 0(RD)
+    |.endif
+    |3:  // RA and RD are both numbers.
+    |.if FPU
+    |.if MIPSR6
+    |  fcomp FTMP0, FTMP0, FTMP2
+    |   addu TMP2, TMP2, TMP3
+    |  mfc1 TMP3, FTMP0
+    |  b <1
+    |.  fmovop TMP2, TMP2, TMP3
+    |.else
+    |  fcomp FTMP0, FTMP2
+    |   addu TMP2, TMP2, TMP3
+    |  b <1
+    |.  fmovop TMP2, r0
+    |.endif
+    |.else
+    |  bal sfcomp
+    |.   addu TMP2, TMP2, TMP3
+    |  b <1
+    |.if MIPSR6
+    |.  movop TMP2, TMP2, CRET1
+    |.else
+    |.  movop TMP2, r0, CRET1
+    |.endif
+    |.endif
+    |
+    |4:  // RA is a number, RD is not a number.
+    |  bne CARG4, TISNUM, ->vmeta_comp
+    |  // RA is a number, RD is an integer. Convert RD to a number.
+    |.if FPU
+    |.  lwc1 FRD, LO(RD)
+    |  ldc1 FRA, 0(RA)
+    |  b <3
+    |.  cvt.d.w FRD, FRD
+    |.else
+    |.if "ARGRD" == "CARG1"
+    |.  sextw CARG1, CARG1
+    |  bal ->vm_sfi2d_1
+    |.  nop
+    |.else
+    |.  sextw CARG2, CARG2
+    |  bal ->vm_sfi2d_2
+    |.  nop
+    |.endif
+    |  b <3
+    |.  nop
+    |.endif
+    |
+    |5:  // RA is an integer, RD is not an integer
+    |  sltiu AT, CARG4, LJ_TISNUM
+    |  beqz AT, ->vmeta_comp
+    |.  lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  // RA is an integer, RD is a number. Convert RA to a number.
+    |.if FPU
+    |   lwc1 FRA, LO(RA)
+    |   ldc1 FRD, 0(RD)
+    |  b <3
+    |   cvt.d.w FRA, FRA
+    |.else
+    |.if "ARGRA" == "CARG1"
+    |  bal ->vm_sfi2d_1
+    |.  sextw CARG1, CARG1
+    |.else
+    |  bal ->vm_sfi2d_2
+    |.  sextw CARG2, CARG2
+    |.endif
+    |  b <3
+    |.  nop
+    |.endif
+    |.endmacro
+    |
+    |.if MIPSR6
+    if (op == BC_ISLT) {
+      |  bc_comp FTMP0, FTMP2, CARG1, CARG2, selnez, selnez, cmp.lt.d, ->vm_sfcmpolt
+    } else if (op == BC_ISGE) {
+      |  bc_comp FTMP0, FTMP2, CARG1, CARG2, seleqz, seleqz, cmp.lt.d, ->vm_sfcmpolt
+    } else if (op == BC_ISLE) {
+      |  bc_comp FTMP2, FTMP0, CARG2, CARG1, seleqz, seleqz, cmp.ult.d, ->vm_sfcmpult
+    } else {
+      |  bc_comp FTMP2, FTMP0, CARG2, CARG1, selnez, selnez, cmp.ult.d, ->vm_sfcmpult
+    }
+    |.else
+    if (op == BC_ISLT) {
+      |  bc_comp FTMP0, FTMP2, CARG1, CARG2, movz, movf, c.olt.d, ->vm_sfcmpolt
+    } else if (op == BC_ISGE) {
+      |  bc_comp FTMP0, FTMP2, CARG1, CARG2, movn, movt, c.olt.d, ->vm_sfcmpolt
+    } else if (op == BC_ISLE) {
+      |  bc_comp FTMP2, FTMP0, CARG2, CARG1, movn, movt, c.ult.d, ->vm_sfcmpult
+    } else {
+      |  bc_comp FTMP2, FTMP0, CARG2, CARG1, movz, movf, c.ult.d, ->vm_sfcmpult
+    }
+    |.endif
+    break;
+
+  case BC_ISEQV: case BC_ISNEV:
+    vk = op == BC_ISEQV;
+    |  // RA = src1*8, RD = src2*8, JMP with RD = target
+    |  daddu RA, BASE, RA
+    |    daddiu PC, PC, 4
+    |   daddu RD, BASE, RD
+    |  ld CARG1, 0(RA)
+    |    lhu TMP2, -4+OFS_RD(PC)
+    |   ld CARG2, 0(RD)
+    |  gettp CARG3, CARG1
+    |   gettp CARG4, CARG2
+    |  sltu AT, TISNUM, CARG3
+    |   sltu TMP1, TISNUM, CARG4
+    |  or AT, AT, TMP1
+    if (vk) {
+      |  beqz AT, ->BC_ISEQN_Z
+    } else {
+      |  beqz AT, ->BC_ISNEN_Z
+    }
+    |  // Either or both types are not numbers.
+    |    lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |.if FFI
+    |.  li AT, LJ_TCDATA
+    |  beq CARG3, AT, ->vmeta_equal_cd
+    |.endif
+    |   decode_RD4b TMP2
+    |.if FFI
+    |  beq CARG4, AT, ->vmeta_equal_cd
+    |.  nop
+    |.endif
+    |  bne CARG1, CARG2, >2
+    |.  addu TMP2, TMP2, TMP3
+    |  // Tag and value are equal.
+    if (vk) {
+      |->BC_ISEQV_Z:
+      |  daddu PC, PC, TMP2
+    }
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if the tags are the same and it's a table or userdata.
+    |  xor AT, CARG3, CARG4			// Same type?
+    |  sltiu TMP0, CARG3, LJ_TISTABUD+1		// Table or userdata?
+    |.if MIPSR6
+    |  seleqz TMP0, TMP0, AT
+    |.else
+    |  movn TMP0, r0, AT
+    |.endif
+    if (vk) {
+      |  beqz TMP0, <1
+    } else {
+      |  beqz TMP0, ->BC_ISEQV_Z  // Reuse code from opposite instruction.
+    }
+    |  // Different tables or userdatas. Need to check __eq metamethod.
+    |  // Field metatable must be at same offset for GCtab and GCudata!
+    |.  cleartp TAB:TMP1, CARG1
+    |  ld TAB:TMP3, TAB:TMP1->metatable
+    if (vk) {
+      |  beqz TAB:TMP3, <1		// No metatable?
+      |.  nop
+      |  lbu TMP3, TAB:TMP3->nomm
+      |  andi TMP3, TMP3, 1<<MM_eq
+      |  bnez TMP3, >1			// Or 'no __eq' flag set?
+    } else {
+      |  beqz TAB:TMP3,->BC_ISEQV_Z	// No metatable?
+      |.  nop
+      |  lbu TMP3, TAB:TMP3->nomm
+      |  andi TMP3, TMP3, 1<<MM_eq
+      |  bnez TMP3, ->BC_ISEQV_Z	// Or 'no __eq' flag set?
+    }
+    |.  nop
+    |  b ->vmeta_equal			// Handle __eq metamethod.
+    |.  li TMP0, 1-vk			// ne = 0 or 1.
+    break;
+
+  case BC_ISEQS: case BC_ISNES:
+    vk = op == BC_ISEQS;
+    |  // RA = src*8, RD = str_const*8 (~), JMP with RD = target
+    |  daddu RA, BASE, RA
+    |   daddiu PC, PC, 4
+    |  ld CARG1, 0(RA)
+    |   dsubu RD, KBASE, RD
+    |    lhu TMP2, -4+OFS_RD(PC)
+    |   ld CARG2, -8(RD)		// KBASE-8-str_const*8
+    |.if FFI
+    |  gettp TMP0, CARG1
+    |  li AT, LJ_TCDATA
+    |.endif
+    |  li TMP1, LJ_TSTR
+    |   decode_RD4b TMP2
+    |.if FFI
+    |  beq TMP0, AT, ->vmeta_equal_cd
+    |.endif
+    |.  settp CARG2, TMP1
+    |   lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  xor TMP1, CARG1, CARG2
+    |   addu TMP2, TMP2, TMP3
+    |.if MIPSR6
+    if (vk) {
+      |  seleqz TMP2, TMP2, TMP1
+    } else {
+      |  selnez TMP2, TMP2, TMP1
+    }
+    |.else
+    if (vk) {
+      |  movn TMP2, r0, TMP1
+    } else {
+      |  movz TMP2, r0, TMP1
+    }
+    |.endif
+    |  daddu PC, PC, TMP2
+    |  ins_next
+    break;
+
+  case BC_ISEQN: case BC_ISNEN:
+    vk = op == BC_ISEQN;
+    |  // RA = src*8, RD = num_const*8, JMP with RD = target
+    |  daddu RA, BASE, RA
+    |   daddu RD, KBASE, RD
+    |  ld CARG1, 0(RA)
+    |   ld CARG2, 0(RD)
+    |    lhu TMP2, OFS_RD(PC)
+    |  gettp CARG3, CARG1
+    |   gettp CARG4, CARG2
+    |    daddiu PC, PC, 4
+    |    lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    if (vk) {
+      |->BC_ISEQN_Z:
+    } else {
+      |->BC_ISNEN_Z:
+    }
+    |  bne CARG3, TISNUM, >3
+    |.   decode_RD4b TMP2
+    |  bne CARG4, TISNUM, >6
+    |.   addu TMP2, TMP2, TMP3
+    |  xor AT, CARG1, CARG2
+    |.if MIPSR6
+    if (vk) {
+      | seleqz TMP2, TMP2, AT
+      |1:
+      |  daddu PC, PC, TMP2
+      |2:
+    } else {
+      |  selnez TMP2, TMP2, AT
+      |1:
+      |2:
+      |  daddu PC, PC, TMP2
+    }
+    |.else
+    if (vk) {
+      | movn TMP2, r0, AT
+      |1:
+      |  daddu PC, PC, TMP2
+      |2:
+    } else {
+      |  movz TMP2, r0, AT
+      |1:
+      |2:
+      |  daddu PC, PC, TMP2
+    }
+    |.endif
+    |  ins_next
+    |
+    |3:  // RA is not an integer.
+    |  sltu AT, CARG3, TISNUM
+    |.if FFI
+    |  beqz AT, >8
+    |.else
+    |  beqz AT, <2
+    |.endif
+    |.   addu TMP2, TMP2, TMP3
+    |  sltu AT, CARG4, TISNUM
+    |.if FPU
+    |  ldc1 FTMP0, 0(RA)
+    |   ldc1 FTMP2, 0(RD)
+    |.endif
+    |  beqz AT, >5
+    |.  nop
+    |4:  // RA and RD are both numbers.
+    |.if FPU
+    |.if MIPSR6
+    |  cmp.eq.d FTMP0, FTMP0, FTMP2
+    |  dmfc1 TMP1, FTMP0
+    |  b <1
+    if (vk) {
+      |.  selnez TMP2, TMP2, TMP1
+    } else {
+      |.  seleqz TMP2, TMP2, TMP1
+    }
+    |.else
+    |  c.eq.d FTMP0, FTMP2
+    |  b <1
+    if (vk) {
+      |.  movf TMP2, r0
+    } else {
+      |.  movt TMP2, r0
+    }
+    |.endif
+    |.else
+    |  bal ->vm_sfcmpeq
+    |.  nop
+    |  b <1
+    |.if MIPSR6
+    if (vk) {
+      |.  selnez TMP2, TMP2, CRET1
+    } else {
+      |.  seleqz TMP2, TMP2, CRET1
+    }
+    |.else
+    if (vk) {
+      |.  movz TMP2, r0, CRET1
+    } else {
+      |.  movn TMP2, r0, CRET1
+    }
+    |.endif
+    |.endif
+    |
+    |5:  // RA is a number, RD is not a number.
+    |.if FFI
+    |  bne CARG4, TISNUM, >9
+    |.else
+    |  bne CARG4, TISNUM, <2
+    |.endif
+    |  // RA is a number, RD is an integer. Convert RD to a number.
+    |.if FPU
+    |.  lwc1 FTMP2, LO(RD)
+    |  b <4
+    |.  cvt.d.w FTMP2, FTMP2
+    |.else
+    |.  sextw CARG2, CARG2
+    |  bal ->vm_sfi2d_2
+    |.  nop
+    |  b <4
+    |.  nop
+    |.endif
+    |
+    |6:  // RA is an integer, RD is not an integer
+    |  sltu AT, CARG4, TISNUM
+    |.if FFI
+    |  beqz AT, >9
+    |.else
+    |  beqz AT, <2
+    |.endif
+    |  // RA is an integer, RD is a number. Convert RA to a number.
+    |.if FPU
+    |.  lwc1 FTMP0, LO(RA)
+    |   ldc1 FTMP2, 0(RD)
+    |  b <4
+    |   cvt.d.w FTMP0, FTMP0
+    |.else
+    |.  sextw CARG1, CARG1
+    |  bal ->vm_sfi2d_1
+    |.  nop
+    |  b <4
+    |.  nop
+    |.endif
+    |
+    |.if FFI
+    |8:
+    |  li AT, LJ_TCDATA
+    |  bne CARG3, AT, <2
+    |.  nop
+    |  b ->vmeta_equal_cd
+    |.  nop
+    |9:
+    |  li AT, LJ_TCDATA
+    |  bne CARG4, AT, <2
+    |.  nop
+    |  b ->vmeta_equal_cd
+    |.  nop
+    |.endif
+    break;
+
+  case BC_ISEQP: case BC_ISNEP:
+    vk = op == BC_ISEQP;
+    |  // RA = src*8, RD = primitive_type*8 (~), JMP with RD = target
+    |  daddu RA, BASE, RA
+    |   srl TMP1, RD, 3
+    |  ld TMP0, 0(RA)
+    |    lhu TMP2, OFS_RD(PC)
+    |   not TMP1, TMP1
+    |  gettp TMP0, TMP0
+    |    daddiu PC, PC, 4
+    |.if FFI
+    |  li AT, LJ_TCDATA
+    |  beq TMP0, AT, ->vmeta_equal_cd
+    |.endif
+    |.  xor TMP0, TMP0, TMP1
+    |  decode_RD4b TMP2
+    |  lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  addu TMP2, TMP2, TMP3
+    |.if MIPSR6
+    if (vk) {
+      |  seleqz TMP2, TMP2, TMP0
+    } else {
+      |  selnez TMP2, TMP2, TMP0
+    }
+    |.else
+    if (vk) {
+      |  movn TMP2, r0, TMP0
+    } else {
+      |  movz TMP2, r0, TMP0
+    }
+    |.endif
+    |  daddu PC, PC, TMP2
+    |  ins_next
+    break;
+
+  /* -- Unary test and copy ops ------------------------------------------- */
+
+  case BC_ISTC: case BC_ISFC: case BC_IST: case BC_ISF:
+    |  // RA = dst*8 or unused, RD = src*8, JMP with RD = target
+    |  daddu RD, BASE, RD
+    |   lhu TMP2, OFS_RD(PC)
+    |  ld TMP0, 0(RD)
+    |   daddiu PC, PC, 4
+    |  gettp TMP0, TMP0
+    |  sltiu TMP0, TMP0, LJ_TISTRUECOND
+    if (op == BC_IST || op == BC_ISF) {
+      |   decode_RD4b TMP2
+      |   lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+      |   addu TMP2, TMP2, TMP3
+      |.if MIPSR6
+      if (op == BC_IST) {
+	|  selnez TMP2, TMP2, TMP0;
+      } else {
+	|  seleqz TMP2, TMP2, TMP0;
+      }
+      |.else
+      if (op == BC_IST) {
+	|  movz TMP2, r0, TMP0
+      } else {
+	|  movn TMP2, r0, TMP0
+      }
+      |.endif
+      |  daddu PC, PC, TMP2
+    } else {
+      |  ld CRET1, 0(RD)
+      if (op == BC_ISTC) {
+	|  beqz TMP0, >1
+      } else {
+	|  bnez TMP0, >1
+      }
+      |.  daddu RA, BASE, RA
+      |   decode_RD4b TMP2
+      |   lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+      |   addu TMP2, TMP2, TMP3
+      |  sd CRET1, 0(RA)
+      |   daddu PC, PC, TMP2
+      |1:
+    }
+    |  ins_next
+    break;
+
+  case BC_ISTYPE:
+    |  // RA = src*8, RD = -type*8
+    |  daddu TMP2, BASE, RA
+    |  srl TMP1, RD, 3
+    |  ld TMP0, 0(TMP2)
+    |  ins_next1
+    |  gettp TMP0, TMP0
+    |  daddu AT, TMP0, TMP1
+    |  bnez AT, ->vmeta_istype
+    |.  ins_next2
+    break;
+  case BC_ISNUM:
+    |  // RA = src*8, RD = -(TISNUM-1)*8
+    |  daddu TMP2, BASE, RA
+    |  ld TMP0, 0(TMP2)
+    |  ins_next1
+    |  checknum TMP0, ->vmeta_istype
+    |.  ins_next2
+    break;
+
+  /* -- Unary ops --------------------------------------------------------- */
+
+  case BC_MOV:
+    |  // RA = dst*8, RD = src*8
+    |  daddu RD, BASE, RD
+    |   daddu RA, BASE, RA
+    |  ld CRET1, 0(RD)
+    |  ins_next1
+    |  sd CRET1, 0(RA)
+    |  ins_next2
+    break;
+  case BC_NOT:
+    |  // RA = dst*8, RD = src*8
+    |  daddu RD, BASE, RD
+    |   daddu RA, BASE, RA
+    |  ld TMP0, 0(RD)
+    |   li AT, LJ_TTRUE
+    |  gettp TMP0, TMP0
+    |  sltu TMP0, AT, TMP0
+    |  addiu TMP0, TMP0, 1
+    |  dsll TMP0, TMP0, 47
+    |  not TMP0, TMP0
+    |  ins_next1
+    |   sd TMP0, 0(RA)
+    |  ins_next2
+    break;
+  case BC_UNM:
+    |  // RA = dst*8, RD = src*8
+    |  daddu RB, BASE, RD
+    |  ld CARG1, 0(RB)
+    |    daddu RA, BASE, RA
+    |  gettp CARG3, CARG1
+    |  bne CARG3, TISNUM, >2
+    |.  lui TMP1, 0x8000
+    |  sextw CARG1, CARG1
+    |  beq CARG1, TMP1, ->vmeta_unm	// Meta handler deals with -2^31.
+    |.  negu CARG1, CARG1
+    |  zextw CARG1, CARG1
+    |  settp CARG1, TISNUM
+    |1:
+    |  ins_next1
+    |   sd CARG1, 0(RA)
+    |  ins_next2
+    |2:
+    |  sltiu AT, CARG3, LJ_TISNUM
+    |  beqz AT, ->vmeta_unm
+    |.  dsll TMP1, TMP1, 32
+    |  b <1
+    |.  xor CARG1, CARG1, TMP1
+    break;
+  case BC_LEN:
+    |  // RA = dst*8, RD = src*8
+    |  daddu CARG2, BASE, RD
+    |   daddu RA, BASE, RA
+    |  ld TMP0, 0(CARG2)
+    |  gettp TMP1, TMP0
+    |  daddiu AT, TMP1, -LJ_TSTR
+    |  bnez AT, >2
+    |.  cleartp STR:CARG1, TMP0
+    |   lw CRET1, STR:CARG1->len
+    |1:
+    |  settp CRET1, TISNUM
+    |  ins_next1
+    |  sd CRET1, 0(RA)
+    |  ins_next2
+    |2:
+    |  daddiu AT, TMP1, -LJ_TTAB
+    |  bnez AT, ->vmeta_len
+    |.  nop
+#if LJ_52
+    |  ld TAB:TMP2, TAB:CARG1->metatable
+    |  bnez TAB:TMP2, >9
+    |.  nop
+    |3:
+#endif
+    |->BC_LEN_Z:
+    |  load_got lj_tab_len
+    |  call_intern lj_tab_len		// (GCtab *t)
+    |.  nop
+    |  // Returns uint32_t (but less than 2^31).
+    |  b <1
+    |.  nop
+#if LJ_52
+    |9:
+    |  lbu TMP0, TAB:TMP2->nomm
+    |  andi TMP0, TMP0, 1<<MM_len
+    |  bnez TMP0, <3			// 'no __len' flag set: done.
+    |.  nop
+    |  b ->vmeta_len
+    |.  nop
+#endif
+    break;
+
+  /* -- Binary ops -------------------------------------------------------- */
+
+    |.macro fpmod, a, b, c
+    |  bal ->vm_floor		// floor(b/c)
+    |.  div.d FARG1, b, c
+    |  mul.d a, FRET1, c
+    |  sub.d a, b, a		// b - floor(b/c)*c
+    |.endmacro
+
+    |.macro sfpmod
+    |  daddiu sp, sp, -16
+    |
+    |  load_got __divdf3
+    |  sd CARG1, 0(sp)
+    |  call_extern
+    |.  sd CARG2, 8(sp)
+    |
+    |  load_got floor
+    |  call_extern
+    |.  move CARG1, CRET1
+    |
+    |  load_got __muldf3
+    |  move CARG1, CRET1
+    |  call_extern
+    |.  ld CARG2, 8(sp)
+    |
+    |  load_got __subdf3
+    |  ld CARG1, 0(sp)
+    |  call_extern
+    |.  move CARG2, CRET1
+    |
+    |  daddiu sp, sp, 16
+    |.endmacro
+
+    |.macro ins_arithpre, label
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    |  // RA = dst*8, RB = src1*8, RC = src2*8 | num_const*8
+    ||switch (vk) {
+    ||case 0:
+    |   decode_RB8a RB, INS
+    |   decode_RB8b RB
+    |    decode_RDtoRC8 RC, RD
+    |   // RA = dst*8, RB = src1*8, RC = num_const*8
+    |   daddu RB, BASE, RB
+    |.if "label" ~= "none"
+    |   b label
+    |.endif
+    |.   daddu RC, KBASE, RC
+    ||  break;
+    ||case 1:
+    |   decode_RB8a RC, INS
+    |   decode_RB8b RC
+    |    decode_RDtoRC8 RB, RD
+    |   // RA = dst*8, RB = num_const*8, RC = src1*8
+    |   daddu RC, BASE, RC
+    |.if "label" ~= "none"
+    |   b label
+    |.endif
+    |.   daddu RB, KBASE, RB
+    ||  break;
+    ||default:
+    |   decode_RB8a RB, INS
+    |   decode_RB8b RB
+    |    decode_RDtoRC8 RC, RD
+    |   // RA = dst*8, RB = src1*8, RC = src2*8
+    |   daddu RB, BASE, RB
+    |.if "label" ~= "none"
+    |   b label
+    |.endif
+    |.   daddu RC, BASE, RC
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro ins_arith, intins, fpins, fpcall, label
+    |  ins_arithpre none
+    |
+    |.if "label" ~= "none"
+    |label:
+    |.endif
+    |
+    |// Used in 5.
+    |  ld CARG1, 0(RB)
+    |   ld CARG2, 0(RC)
+    |  gettp TMP0, CARG1
+    |   gettp TMP1, CARG2
+    |
+    |.if "intins" ~= "div"
+    |
+    |  // Check for two integers.
+    |  sextw CARG3, CARG1
+    |  bne TMP0, TISNUM, >5
+    |.  sextw CARG4, CARG2
+    |  bne TMP1, TISNUM, >5
+    |
+    |.if "intins" == "addu"
+    |.  intins CRET1, CARG3, CARG4
+    |  xor TMP1, CRET1, CARG3		// ((y^a) & (y^b)) < 0: overflow.
+    |  xor TMP2, CRET1, CARG4
+    |  and TMP1, TMP1, TMP2
+    |  bltz TMP1, ->vmeta_arith
+    |.  daddu RA, BASE, RA
+    |.elif "intins" == "subu"
+    |.  intins CRET1, CARG3, CARG4
+    |  xor TMP1, CRET1, CARG3		// ((y^a) & (a^b)) < 0: overflow.
+    |  xor TMP2, CARG3, CARG4
+    |  and TMP1, TMP1, TMP2
+    |  bltz TMP1, ->vmeta_arith
+    |.  daddu RA, BASE, RA
+    |.elif "intins" == "mult"
+    |.if MIPSR6
+    |.  nop
+    |  mul CRET1, CARG3, CARG4
+    |  muh TMP2, CARG3, CARG4
+    |.else
+    |.  intins CARG3, CARG4
+    |  mflo CRET1
+    |  mfhi TMP2
+    |.endif
+    |  sra TMP1, CRET1, 31
+    |  bne TMP1, TMP2, ->vmeta_arith
+    |.  daddu RA, BASE, RA
+    |.else
+    |.  load_got lj_vm_modi
+    |  beqz CARG4, ->vmeta_arith
+    |.  daddu RA, BASE, RA
+    |  move CARG1, CARG3
+    |  call_extern
+    |.  move CARG2, CARG4
+    |.endif
+    |
+    |  zextw CRET1, CRET1
+    |  settp CRET1, TISNUM
+    |  ins_next1
+    |  sd CRET1, 0(RA)
+    |3:
+    |  ins_next2
+    |
+    |.endif
+    |
+    |5:  // Check for two numbers.
+    |  .FPU ldc1 FTMP0, 0(RB)
+    |  sltu AT, TMP0, TISNUM
+    |   sltu TMP0, TMP1, TISNUM
+    |  .FPU ldc1 FTMP2, 0(RC)
+    |   and AT, AT, TMP0
+    |   beqz AT, ->vmeta_arith
+    |.   daddu RA, BASE, RA
+    |
+    |.if FPU
+    |  fpins FRET1, FTMP0, FTMP2
+    |.elif "fpcall" == "sfpmod"
+    |  sfpmod
+    |.else
+    |  load_got fpcall
+    |  call_extern
+    |.  nop
+    |.endif
+    |
+    |  ins_next1
+    |.if "intins" ~= "div"
+    |  b <3
+    |.endif
+    |.if FPU
+    |.  sdc1 FRET1, 0(RA)
+    |.else
+    |.  sd CRET1, 0(RA)
+    |.endif
+    |.if "intins" == "div"
+    |  ins_next2
+    |.endif
+    |
+    |.endmacro
+
+  case BC_ADDVN: case BC_ADDNV: case BC_ADDVV:
+    |  ins_arith addu, add.d, __adddf3, none
+    break;
+  case BC_SUBVN: case BC_SUBNV: case BC_SUBVV:
+    |  ins_arith subu, sub.d, __subdf3, none
+    break;
+  case BC_MULVN: case BC_MULNV: case BC_MULVV:
+    |  ins_arith mult, mul.d, __muldf3, none
+    break;
+  case BC_DIVVN:
+    |  ins_arith div, div.d, __divdf3, ->BC_DIVVN_Z
+    break;
+  case BC_DIVNV: case BC_DIVVV:
+    |  ins_arithpre ->BC_DIVVN_Z
+    break;
+  case BC_MODVN:
+    |  ins_arith modi, fpmod, sfpmod, ->BC_MODVN_Z
+    break;
+  case BC_MODNV: case BC_MODVV:
+    |  ins_arithpre ->BC_MODVN_Z
+    break;
+  case BC_POW:
+    |  ins_arithpre none
+    |  ld CARG1, 0(RB)
+    |   ld CARG2, 0(RC)
+    |  gettp TMP0, CARG1
+    |   gettp TMP1, CARG2
+    |  sltiu TMP0, TMP0, LJ_TISNUM
+    |   sltiu TMP1, TMP1, LJ_TISNUM
+    |  and AT, TMP0, TMP1
+    |  load_got pow
+    |  beqz AT, ->vmeta_arith
+    |.  daddu RA, BASE, RA
+    |.if FPU
+    |  ldc1 FARG1, 0(RB)
+    |  ldc1 FARG2, 0(RC)
+    |.endif
+    |  call_extern
+    |.  nop
+    |  ins_next1
+    |.if FPU
+    |  sdc1 FRET1, 0(RA)
+    |.else
+    |  sd CRET1, 0(RA)
+    |.endif
+    |  ins_next2
+    break;
+
+  case BC_CAT:
+    |  // RA = dst*8, RB = src_start*8, RC = src_end*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RDtoRC8 RC, RD
+    |  dsubu CARG3, RC, RB
+    |   sd BASE, L->base
+    |  daddu CARG2, BASE, RC
+    |  move MULTRES, RB
+    |->BC_CAT_Z:
+    |  load_got lj_meta_cat
+    |  srl CARG3, CARG3, 3
+    |   sd PC, SAVE_PC
+    |  call_intern lj_meta_cat		// (lua_State *L, TValue *top, int left)
+    |.  move CARG1, L
+    |  // Returns NULL (finished) or TValue * (metamethod).
+    |  bnez CRET1, ->vmeta_binop
+    |.  ld BASE, L->base
+    |  daddu RB, BASE, MULTRES
+    |  ld CRET1, 0(RB)
+    |   daddu RA, BASE, RA
+    |  ins_next1
+    |  sd CRET1, 0(RA)
+    |  ins_next2
+    break;
+
+  /* -- Constant ops ------------------------------------------------------ */
+
+  case BC_KSTR:
+    |  // RA = dst*8, RD = str_const*8 (~)
+    |  dsubu TMP1, KBASE, RD
+    |  ins_next1
+    |   li TMP2, LJ_TSTR
+    |  ld TMP0, -8(TMP1)		// KBASE-8-str_const*8
+    |  daddu RA, BASE, RA
+    |   settp TMP0, TMP2
+    |  sd TMP0, 0(RA)
+    |  ins_next2
+    break;
+  case BC_KCDATA:
+    |.if FFI
+    |  // RA = dst*8, RD = cdata_const*8 (~)
+    |  dsubu TMP1, KBASE, RD
+    |  ins_next1
+    |  ld TMP0, -8(TMP1)		// KBASE-8-cdata_const*8
+    |   li TMP2, LJ_TCDATA
+    |  daddu RA, BASE, RA
+    |   settp TMP0, TMP2
+    |  sd TMP0, 0(RA)
+    |  ins_next2
+    |.endif
+    break;
+  case BC_KSHORT:
+    |  // RA = dst*8, RD = int16_literal*8
+    |   sra RD, INS, 16
+    |  daddu RA, BASE, RA
+    |   zextw RD, RD
+    |  ins_next1
+    |   settp RD, TISNUM
+    |   sd RD, 0(RA)
+    |  ins_next2
+    break;
+  case BC_KNUM:
+    |  // RA = dst*8, RD = num_const*8
+    |  daddu RD, KBASE, RD
+    |   daddu RA, BASE, RA
+    |  ld CRET1, 0(RD)
+    |  ins_next1
+    |  sd CRET1, 0(RA)
+    |  ins_next2
+    break;
+  case BC_KPRI:
+    |  // RA = dst*8, RD = primitive_type*8 (~)
+    |   daddu RA, BASE, RA
+    |  dsll TMP0, RD, 44
+    |  not TMP0, TMP0
+    |  ins_next1
+    |   sd TMP0, 0(RA)
+    |  ins_next2
+    break;
+  case BC_KNIL:
+    |  // RA = base*8, RD = end*8
+    |  daddu RA, BASE, RA
+    |  sd TISNIL, 0(RA)
+    |   daddiu RA, RA, 8
+    |  daddu RD, BASE, RD
+    |1:
+    |  sd TISNIL, 0(RA)
+    |  slt AT, RA, RD
+    |  bnez AT, <1
+    |.  daddiu RA, RA, 8
+    |  ins_next_
+    break;
+
+  /* -- Upvalue and function ops ------------------------------------------ */
+
+  case BC_UGET:
+    |  // RA = dst*8, RD = uvnum*8
+    |  ld LFUNC:RB, FRAME_FUNC(BASE)
+    |   daddu RA, BASE, RA
+    |  cleartp LFUNC:RB
+    |  daddu RD, RD, LFUNC:RB
+    |  ld UPVAL:RB, LFUNC:RD->uvptr
+    |  ins_next1
+    |  ld TMP1, UPVAL:RB->v
+    |  ld CRET1, 0(TMP1)
+    |   sd CRET1, 0(RA)
+    |  ins_next2
+    break;
+  case BC_USETV:
+    |  // RA = uvnum*8, RD = src*8
+    |  ld LFUNC:RB, FRAME_FUNC(BASE)
+    |   daddu RD, BASE, RD
+    |  cleartp LFUNC:RB
+    |  daddu RA, RA, LFUNC:RB
+    |  ld UPVAL:RB, LFUNC:RA->uvptr
+    |   ld CRET1, 0(RD)
+    |  lbu TMP3, UPVAL:RB->marked
+    |   ld CARG2, UPVAL:RB->v
+    |  andi TMP3, TMP3, LJ_GC_BLACK	// isblack(uv)
+    |  lbu TMP0, UPVAL:RB->closed
+    |   gettp TMP2, CRET1
+    |   sd CRET1, 0(CARG2)
+    |  li AT, LJ_GC_BLACK|1
+    |  or TMP3, TMP3, TMP0
+    |  beq TMP3, AT, >2			// Upvalue is closed and black?
+    |.  daddiu TMP2, TMP2, -(LJ_TNUMX+1)
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if new value is collectable.
+    |  sltiu AT, TMP2, LJ_TISGCV - (LJ_TNUMX+1)
+    |  beqz AT, <1			// tvisgcv(v)
+    |.  cleartp GCOBJ:CRET1, CRET1
+    |  lbu TMP3, GCOBJ:CRET1->gch.marked
+    |  andi TMP3, TMP3, LJ_GC_WHITES	// iswhite(v)
+    |  beqz TMP3, <1
+    |.  load_got lj_gc_barrieruv
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  call_intern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |.  daddiu CARG1, DISPATCH, GG_DISP2G
+    |  b <1
+    |.  nop
+    break;
+  case BC_USETS:
+    |  // RA = uvnum*8, RD = str_const*8 (~)
+    |  ld LFUNC:RB, FRAME_FUNC(BASE)
+    |   dsubu TMP1, KBASE, RD
+    |  cleartp LFUNC:RB
+    |  daddu RA, RA, LFUNC:RB
+    |  ld UPVAL:RB, LFUNC:RA->uvptr
+    |   ld STR:TMP1, -8(TMP1)		// KBASE-8-str_const*8
+    |  lbu TMP2, UPVAL:RB->marked
+    |   ld CARG2, UPVAL:RB->v
+    |   lbu TMP3, STR:TMP1->marked
+    |  andi AT, TMP2, LJ_GC_BLACK	// isblack(uv)
+    |   lbu TMP2, UPVAL:RB->closed
+    |   li TMP0, LJ_TSTR
+    |   settp TMP1, TMP0
+    |  bnez AT, >2
+    |.  sd TMP1, 0(CARG2)
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if string is white and ensure upvalue is closed.
+    |  beqz TMP2, <1
+    |.  andi AT, TMP3, LJ_GC_WHITES	// iswhite(str)
+    |  beqz AT, <1
+    |.  load_got lj_gc_barrieruv
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  call_intern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |.  daddiu CARG1, DISPATCH, GG_DISP2G
+    |  b <1
+    |.  nop
+    break;
+  case BC_USETN:
+    |  // RA = uvnum*8, RD = num_const*8
+    |  ld LFUNC:RB, FRAME_FUNC(BASE)
+    |   daddu RD, KBASE, RD
+    |  cleartp LFUNC:RB
+    |  daddu RA, RA, LFUNC:RB
+    |  ld UPVAL:RB, LFUNC:RA->uvptr
+    |   ld CRET1, 0(RD)
+    |  ld TMP1, UPVAL:RB->v
+    |  ins_next1
+    |   sd CRET1, 0(TMP1)
+    |  ins_next2
+    break;
+  case BC_USETP:
+    |  // RA = uvnum*8, RD = primitive_type*8 (~)
+    |  ld LFUNC:RB, FRAME_FUNC(BASE)
+    |   dsll TMP0, RD, 44
+    |  cleartp LFUNC:RB
+    |  daddu RA, RA, LFUNC:RB
+    |   not TMP0, TMP0
+    |  ld UPVAL:RB, LFUNC:RA->uvptr
+    |  ins_next1
+    |  ld TMP1, UPVAL:RB->v
+    |   sd TMP0, 0(TMP1)
+    |  ins_next2
+    break;
+
+  case BC_UCLO:
+    |  // RA = level*8, RD = target
+    |  ld TMP2, L->openupval
+    |  branch_RD			// Do this first since RD is not saved.
+    |  load_got lj_func_closeuv
+    |   sd BASE, L->base
+    |  beqz TMP2, >1
+    |.  move CARG1, L
+    |  call_intern lj_func_closeuv	// (lua_State *L, TValue *level)
+    |.  daddu CARG2, BASE, RA
+    |  ld BASE, L->base
+    |1:
+    |  ins_next
+    break;
+
+  case BC_FNEW:
+    |  // RA = dst*8, RD = proto_const*8 (~) (holding function prototype)
+    |  load_got lj_func_newL_gc
+    |  dsubu TMP1, KBASE, RD
+    |  ld CARG3, FRAME_FUNC(BASE)
+    |   ld CARG2, -8(TMP1)		// KBASE-8-tab_const*8
+    |    sd BASE, L->base
+    |    sd PC, SAVE_PC
+    |  cleartp CARG3
+    |  // (lua_State *L, GCproto *pt, GCfuncL *parent)
+    |  call_intern lj_func_newL_gc
+    |.  move CARG1, L
+    |  // Returns GCfuncL *.
+    |   li TMP0, LJ_TFUNC
+    |  ld BASE, L->base
+    |  ins_next1
+    |   settp CRET1, TMP0
+    |  daddu RA, BASE, RA
+    |   sd CRET1, 0(RA)
+    |  ins_next2
+    break;
+
+  /* -- Table ops --------------------------------------------------------- */
+
+  case BC_TNEW:
+  case BC_TDUP:
+    |  // RA = dst*8, RD = (hbits|asize)*8 | tab_const*8 (~)
+    |  ld TMP0, DISPATCH_GL(gc.total)(DISPATCH)
+    |  ld TMP1, DISPATCH_GL(gc.threshold)(DISPATCH)
+    |   sd BASE, L->base
+    |   sd PC, SAVE_PC
+    |  sltu AT, TMP0, TMP1
+    |  beqz AT, >5
+    |1:
+    if (op == BC_TNEW) {
+      |  load_got lj_tab_new
+      |  srl CARG2, RD, 3
+      |  andi CARG2, CARG2, 0x7ff
+      |  li TMP0, 0x801
+      |  addiu AT, CARG2, -0x7ff
+      |   srl CARG3, RD, 14
+      |.if MIPSR6
+      |  seleqz TMP0, TMP0, AT
+      |  selnez CARG2, CARG2, AT
+      |  or CARG2, CARG2, TMP0
+      |.else
+      |  movz CARG2, TMP0, AT
+      |.endif
+      |  // (lua_State *L, int32_t asize, uint32_t hbits)
+      |  call_intern lj_tab_new
+      |.  move CARG1, L
+      |  // Returns Table *.
+    } else {
+      |  load_got lj_tab_dup
+      |  dsubu TMP1, KBASE, RD
+      |  move CARG1, L
+      |  call_intern lj_tab_dup		// (lua_State *L, Table *kt)
+      |.  ld CARG2, -8(TMP1)		// KBASE-8-str_const*8
+      |  // Returns Table *.
+    }
+    |   li TMP0, LJ_TTAB
+    |  ld BASE, L->base
+    |  ins_next1
+    |  daddu RA, BASE, RA
+    |   settp CRET1, TMP0
+    |   sd CRET1, 0(RA)
+    |  ins_next2
+    |5:
+    |  load_got lj_gc_step_fixtop
+    |  move MULTRES, RD
+    |  call_intern lj_gc_step_fixtop	// (lua_State *L)
+    |.  move CARG1, L
+    |  b <1
+    |.  move RD, MULTRES
+    break;
+
+  case BC_GGET:
+    |  // RA = dst*8, RD = str_const*8 (~)
+  case BC_GSET:
+    |  // RA = src*8, RD = str_const*8 (~)
+    |  ld LFUNC:TMP2, FRAME_FUNC(BASE)
+    |   dsubu TMP1, KBASE, RD
+    |   ld STR:RC, -8(TMP1)		// KBASE-8-str_const*8
+    |  cleartp LFUNC:TMP2
+    |  ld TAB:RB, LFUNC:TMP2->env
+    if (op == BC_GGET) {
+      |  b ->BC_TGETS_Z
+    } else {
+      |  b ->BC_TSETS_Z
+    }
+    |.  daddu RA, BASE, RA
+    break;
+
+  case BC_TGETV:
+    |  // RA = dst*8, RB = table*8, RC = key*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RDtoRC8 RC, RD
+    |  daddu CARG2, BASE, RB
+    |   daddu CARG3, BASE, RC
+    |  ld TAB:RB, 0(CARG2)
+    |   ld TMP2, 0(CARG3)
+    |   daddu RA, BASE, RA
+    |  checktab TAB:RB, ->vmeta_tgetv
+    |   gettp TMP3, TMP2
+    |  bne TMP3, TISNUM, >5		// Integer key?
+    |.  lw TMP0, TAB:RB->asize
+    |  sextw TMP2, TMP2
+    |   ld TMP1, TAB:RB->array
+    |  sltu AT, TMP2, TMP0
+    |   sll TMP2, TMP2, 3
+    |  beqz AT, ->vmeta_tgetv		// Integer key and in array part?
+    |.  daddu TMP2, TMP1, TMP2
+    |  ld AT, 0(TMP2)
+    |  beq AT, TISNIL, >2
+    |.   ld CRET1, 0(TMP2)
+    |1:
+    |  ins_next1
+    |   sd CRET1, 0(RA)
+    |  ins_next2
+    |
+    |2:  // Check for __index if table value is nil.
+    |  ld TAB:TMP2, TAB:RB->metatable
+    |  beqz TAB:TMP2, <1		// No metatable: done.
+    |.  nop
+    |  lbu TMP0, TAB:TMP2->nomm
+    |  andi TMP0, TMP0, 1<<MM_index
+    |  bnez TMP0, <1			// 'no __index' flag set: done.
+    |.  nop
+    |  b ->vmeta_tgetv
+    |.  nop
+    |
+    |5:
+    |  li AT, LJ_TSTR
+    |  bne TMP3, AT, ->vmeta_tgetv
+    |.  cleartp RC, TMP2
+    |  b ->BC_TGETS_Z			// String key?
+    |.  nop
+    break;
+  case BC_TGETS:
+    |  // RA = dst*8, RB = table*8, RC = str_const*8 (~)
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RC8a RC, INS
+    |  daddu CARG2, BASE, RB
+    |   decode_RC8b RC
+    |  ld TAB:RB, 0(CARG2)
+    |   dsubu CARG3, KBASE, RC
+    |  daddu RA, BASE, RA
+    |   ld STR:RC, -8(CARG3)		// KBASE-8-str_const*8
+    |  checktab TAB:RB, ->vmeta_tgets1
+    |->BC_TGETS_Z:
+    |  // TAB:RB = GCtab *, STR:RC = GCstr *, RA = dst*8
+    |  lw TMP0, TAB:RB->hmask
+    |   lw TMP1, STR:RC->sid
+    |    ld NODE:TMP2, TAB:RB->node
+    |  and TMP1, TMP1, TMP0		// idx = str->sid & tab->hmask
+    |  sll TMP0, TMP1, 5
+    |  sll TMP1, TMP1, 3
+    |  subu TMP1, TMP0, TMP1
+    |   li TMP3, LJ_TSTR
+    |  daddu NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+    |   settp STR:RC, TMP3		// Tagged key to look for.
+    |1:
+    |  ld CARG1, NODE:TMP2->key
+    |   ld CRET1, NODE:TMP2->val
+    |    ld NODE:TMP1, NODE:TMP2->next
+    |  bne CARG1, RC, >4
+    |.  ld TAB:TMP3, TAB:RB->metatable
+    |  beq CRET1, TISNIL, >5		// Key found, but nil value?
+    |.  nop
+    |3:
+    |  ins_next1
+    |   sd CRET1, 0(RA)
+    |  ins_next2
+    |
+    |4:  // Follow hash chain.
+    |  bnez NODE:TMP1, <1
+    |.  move NODE:TMP2, NODE:TMP1
+    |  // End of hash chain: key not found, nil result.
+    |
+    |5:  // Check for __index if table value is nil.
+    |  beqz TAB:TMP3, <3		// No metatable: done.
+    |.  move CRET1, TISNIL
+    |  lbu TMP0, TAB:TMP3->nomm
+    |  andi TMP0, TMP0, 1<<MM_index
+    |  bnez TMP0, <3			// 'no __index' flag set: done.
+    |.  nop
+    |  b ->vmeta_tgets
+    |.  nop
+    break;
+  case BC_TGETB:
+    |  // RA = dst*8, RB = table*8, RC = index*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |  daddu CARG2, BASE, RB
+    |   decode_RDtoRC8 RC, RD
+    |  ld TAB:RB, 0(CARG2)
+    |   daddu RA, BASE, RA
+    |  srl TMP0, RC, 3
+    |  checktab TAB:RB, ->vmeta_tgetb
+    |  lw TMP1, TAB:RB->asize
+    |   ld TMP2, TAB:RB->array
+    |  sltu AT, TMP0, TMP1
+    |  beqz AT, ->vmeta_tgetb
+    |.  daddu RC, TMP2, RC
+    |  ld AT, 0(RC)
+    |  beq AT, TISNIL, >5
+    |.  ld CRET1, 0(RC)
+    |1:
+    |  ins_next1
+    |   sd CRET1, 0(RA)
+    |  ins_next2
+    |
+    |5:  // Check for __index if table value is nil.
+    |  ld TAB:TMP2, TAB:RB->metatable
+    |  beqz TAB:TMP2, <1		// No metatable: done.
+    |.  nop
+    |  lbu TMP1, TAB:TMP2->nomm
+    |  andi TMP1, TMP1, 1<<MM_index
+    |  bnez TMP1, <1			// 'no __index' flag set: done.
+    |.  nop
+    |  b ->vmeta_tgetb			// Caveat: preserve TMP0 and CARG2!
+    |.  nop
+    break;
+  case BC_TGETR:
+    |  // RA = dst*8, RB = table*8, RC = key*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RDtoRC8 RC, RD
+    |  daddu RB, BASE, RB
+    |   daddu RC, BASE, RC
+    |  ld TAB:CARG1, 0(RB)
+    |   lw CARG2, LO(RC)
+    |    daddu RA, BASE, RA
+    |  cleartp TAB:CARG1
+    |  lw TMP0, TAB:CARG1->asize
+    |   ld TMP1, TAB:CARG1->array
+    |  sltu AT, CARG2, TMP0
+    |   sll TMP2, CARG2, 3
+    |  beqz AT, ->vmeta_tgetr		// In array part?
+    |.  daddu CRET1, TMP1, TMP2
+    |   ld CARG2, 0(CRET1)
+    |->BC_TGETR_Z:
+    |  ins_next1
+    |   sd CARG2, 0(RA)
+    |  ins_next2
+    break;
+
+  case BC_TSETV:
+    |  // RA = src*8, RB = table*8, RC = key*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RDtoRC8 RC, RD
+    |  daddu CARG2, BASE, RB
+    |   daddu CARG3, BASE, RC
+    |  ld RB, 0(CARG2)
+    |   ld TMP2, 0(CARG3)
+    |  daddu RA, BASE, RA
+    |  checktab RB, ->vmeta_tsetv
+    |  checkint TMP2, >5
+    |.  sextw RC, TMP2
+    |  lw TMP0, TAB:RB->asize
+    |   ld TMP1, TAB:RB->array
+    |  sltu AT, RC, TMP0
+    |   sll TMP2, RC, 3
+    |  beqz AT, ->vmeta_tsetv		// Integer key and in array part?
+    |.  daddu TMP1, TMP1, TMP2
+    |  ld TMP0, 0(TMP1)
+    |   lbu TMP3, TAB:RB->marked
+    |  beq TMP0, TISNIL, >3
+    |.  ld CRET1, 0(RA)
+    |1:
+    |   andi AT, TMP3, LJ_GC_BLACK	// isblack(table)
+    |  bnez AT, >7
+    |.  sd CRET1, 0(TMP1)
+    |2:
+    |  ins_next
+    |
+    |3:  // Check for __newindex if previous value is nil.
+    |  ld TAB:TMP2, TAB:RB->metatable
+    |  beqz TAB:TMP2, <1		// No metatable: done.
+    |.  nop
+    |  lbu TMP2, TAB:TMP2->nomm
+    |  andi TMP2, TMP2, 1<<MM_newindex
+    |  bnez TMP2, <1			// 'no __newindex' flag set: done.
+    |.  nop
+    |  b ->vmeta_tsetv
+    |.  nop
+    |
+    |5:
+    |  gettp AT, TMP2
+    |  daddiu AT, AT, -LJ_TSTR
+    |  bnez AT, ->vmeta_tsetv
+    |.  nop
+    |  b ->BC_TSETS_Z			// String key?
+    |.  cleartp STR:RC, TMP2
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0, <2
+    break;
+  case BC_TSETS:
+    |  // RA = src*8, RB = table*8, RC = str_const*8 (~)
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |  daddu CARG2, BASE, RB
+    |   decode_RC8a RC, INS
+    |    ld TAB:RB, 0(CARG2)
+    |   decode_RC8b RC
+    |   dsubu CARG3, KBASE, RC
+    |   ld RC, -8(CARG3)		// KBASE-8-str_const*8
+    |  daddu RA, BASE, RA
+    |   cleartp STR:RC
+    |  checktab TAB:RB, ->vmeta_tsets1
+    |->BC_TSETS_Z:
+    |  // TAB:RB = GCtab *, STR:RC = GCstr *, RA = BASE+src*8
+    |  lw TMP0, TAB:RB->hmask
+    |   lw TMP1, STR:RC->sid
+    |    ld NODE:TMP2, TAB:RB->node
+    |   sb r0, TAB:RB->nomm		// Clear metamethod cache.
+    |  and TMP1, TMP1, TMP0		// idx = str->sid & tab->hmask
+    |  sll TMP0, TMP1, 5
+    |  sll TMP1, TMP1, 3
+    |  subu TMP1, TMP0, TMP1
+    |   li TMP3, LJ_TSTR
+    |  daddu NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+    |   settp STR:RC, TMP3		// Tagged key to look for.
+    |.if FPU
+    |   ldc1 FTMP0, 0(RA)
+    |.else
+    |   ld CRET1, 0(RA)
+    |.endif
+    |1:
+    |  ld TMP0, NODE:TMP2->key
+    |   ld CARG2, NODE:TMP2->val
+    |    ld NODE:TMP1, NODE:TMP2->next
+    |  bne TMP0, RC, >5
+    |.    lbu TMP3, TAB:RB->marked
+    |   beq CARG2, TISNIL, >4		// Key found, but nil value?
+    |.   ld TAB:TMP0, TAB:RB->metatable
+    |2:
+    |  andi AT, TMP3, LJ_GC_BLACK	// isblack(table)
+    |  bnez AT, >7
+    |.if FPU
+    |.  sdc1 FTMP0, NODE:TMP2->val
+    |.else
+    |.  sd CRET1, NODE:TMP2->val
+    |.endif
+    |3:
+    |  ins_next
+    |
+    |4:  // Check for __newindex if previous value is nil.
+    |  beqz TAB:TMP0, <2		// No metatable: done.
+    |.  nop
+    |  lbu TMP0, TAB:TMP0->nomm
+    |  andi TMP0, TMP0, 1<<MM_newindex
+    |  bnez TMP0, <2			// 'no __newindex' flag set: done.
+    |.  nop
+    |  b ->vmeta_tsets
+    |.  nop
+    |
+    |5:  // Follow hash chain.
+    |  bnez NODE:TMP1, <1
+    |.  move NODE:TMP2, NODE:TMP1
+    |  // End of hash chain: key not found, add a new one
+    |
+    |  // But check for __newindex first.
+    |  ld TAB:TMP2, TAB:RB->metatable
+    |  beqz TAB:TMP2, >6		// No metatable: continue.
+    |.  daddiu CARG3, DISPATCH, DISPATCH_GL(tmptv)
+    |  lbu TMP0, TAB:TMP2->nomm
+    |  andi TMP0, TMP0, 1<<MM_newindex
+    |  beqz TMP0, ->vmeta_tsets		// 'no __newindex' flag NOT set: check.
+    |6:
+    |  load_got lj_tab_newkey
+    |  sd RC, 0(CARG3)
+    |   sd BASE, L->base
+    |  move CARG2, TAB:RB
+    |   sd PC, SAVE_PC
+    |  call_intern lj_tab_newkey	// (lua_State *L, GCtab *t, TValue *k
+    |.  move CARG1, L
+    |  // Returns TValue *.
+    |  ld BASE, L->base
+    |.if FPU
+    |  b <3				// No 2nd write barrier needed.
+    |.  sdc1 FTMP0, 0(CRET1)
+    |.else
+    |  ld CARG1, 0(RA)
+    |  b <3				// No 2nd write barrier needed.
+    |.  sd CARG1, 0(CRET1)
+    |.endif
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0, <3
+    break;
+  case BC_TSETB:
+    |  // RA = src*8, RB = table*8, RC = index*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |  daddu CARG2, BASE, RB
+    |   decode_RDtoRC8 RC, RD
+    |  ld TAB:RB, 0(CARG2)
+    |   daddu RA, BASE, RA
+    |  srl TMP0, RC, 3
+    |  checktab RB, ->vmeta_tsetb
+    |  lw TMP1, TAB:RB->asize
+    |   ld TMP2, TAB:RB->array
+    |  sltu AT, TMP0, TMP1
+    |  beqz AT, ->vmeta_tsetb
+    |.  daddu RC, TMP2, RC
+    |  ld TMP1, 0(RC)
+    |   lbu TMP3, TAB:RB->marked
+    |  beq TMP1, TISNIL, >5
+    |1:
+    |.  ld CRET1, 0(RA)
+    |  andi AT, TMP3, LJ_GC_BLACK	// isblack(table)
+    |  bnez AT, >7
+    |.   sd CRET1, 0(RC)
+    |2:
+    |  ins_next
+    |
+    |5:  // Check for __newindex if previous value is nil.
+    |  ld TAB:TMP2, TAB:RB->metatable
+    |  beqz TAB:TMP2, <1		// No metatable: done.
+    |.  nop
+    |  lbu TMP1, TAB:TMP2->nomm
+    |  andi TMP1, TMP1, 1<<MM_newindex
+    |  bnez TMP1, <1			// 'no __newindex' flag set: done.
+    |.  nop
+    |  b ->vmeta_tsetb			// Caveat: preserve TMP0 and CARG2!
+    |.  nop
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0, <2
+    break;
+  case BC_TSETR:
+    |  // RA = dst*8, RB = table*8, RC = key*8
+    |  decode_RB8a RB, INS
+    |  decode_RB8b RB
+    |   decode_RDtoRC8 RC, RD
+    |  daddu CARG1, BASE, RB
+    |   daddu CARG3, BASE, RC
+    |  ld TAB:CARG2, 0(CARG1)
+    |   lw CARG3, LO(CARG3)
+    |  cleartp TAB:CARG2
+    |  lbu TMP3, TAB:CARG2->marked
+    |   lw TMP0, TAB:CARG2->asize
+    |    ld TMP1, TAB:CARG2->array
+    |  andi AT, TMP3, LJ_GC_BLACK	// isblack(table)
+    |  bnez AT, >7
+    |.  daddu RA, BASE, RA
+    |2:
+    |  sltu AT, CARG3, TMP0
+    |   sll TMP2, CARG3, 3
+    |  beqz AT, ->vmeta_tsetr		// In array part?
+    |.  daddu CRET1, TMP1, TMP2
+    |->BC_TSETR_Z:
+    |  ld CARG1, 0(RA)
+    |  ins_next1
+    |  sd CARG1, 0(CRET1)
+    |  ins_next2
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, TMP3, CRET1, <2
+    break;
+
+  case BC_TSETM:
+    |  // RA = base*8 (table at base-1), RD = num_const*8 (start index)
+    |  daddu RA, BASE, RA
+    |1:
+    |   daddu TMP3, KBASE, RD
+    |  ld TAB:CARG2, -8(RA)		// Guaranteed to be a table.
+    |    addiu TMP0, MULTRES, -8
+    |   lw TMP3, LO(TMP3)		// Integer constant is in lo-word.
+    |    beqz TMP0, >4			// Nothing to copy?
+    |.    srl CARG3, TMP0, 3
+    |  cleartp CARG2
+    |  addu CARG3, CARG3, TMP3
+    |  lw TMP2, TAB:CARG2->asize
+    |   sll TMP1, TMP3, 3
+    |    lbu TMP3, TAB:CARG2->marked
+    |   ld CARG1, TAB:CARG2->array
+    |  sltu AT, TMP2, CARG3
+    |  bnez AT, >5
+    |.  daddu TMP2, RA, TMP0
+    |   daddu TMP1, TMP1, CARG1
+    |  andi TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
+    |3:  // Copy result slots to table.
+    |   ld CRET1, 0(RA)
+    |    daddiu RA, RA, 8
+    |  sltu AT, RA, TMP2
+    |   sd CRET1, 0(TMP1)
+    |  bnez AT, <3
+    |.   daddiu TMP1, TMP1, 8
+    |  bnez TMP0, >7
+    |.  nop
+    |4:
+    |  ins_next
+    |
+    |5:  // Need to resize array part.
+    |  load_got lj_tab_reasize
+    |   sd BASE, L->base
+    |   sd PC, SAVE_PC
+    |  move BASE, RD
+    |  call_intern lj_tab_reasize	// (lua_State *L, GCtab *t, int nasize)
+    |.  move CARG1, L
+    |  // Must not reallocate the stack.
+    |  move RD, BASE
+    |  b <1
+    |.  ld BASE, L->base	// Reload BASE for lack of a saved register.
+    |
+    |7:  // Possible table write barrier for any value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, TMP3, TMP0, <4
+    break;
+
+  /* -- Calls and vararg handling ----------------------------------------- */
+
+  case BC_CALLM:
+    |  // RA = base*8, (RB = (nresults+1)*8,) RC = extra_nargs*8
+    |  decode_RDtoRC8 NARGS8:RC, RD
+    |  b ->BC_CALL_Z
+    |.  addu NARGS8:RC, NARGS8:RC, MULTRES
+    break;
+  case BC_CALL:
+    |  // RA = base*8, (RB = (nresults+1)*8,) RC = (nargs+1)*8
+    |  decode_RDtoRC8 NARGS8:RC, RD
+    |->BC_CALL_Z:
+    |  move TMP2, BASE
+    |  daddu BASE, BASE, RA
+    |   ld LFUNC:RB, 0(BASE)
+    |   daddiu BASE, BASE, 16
+    |  addiu NARGS8:RC, NARGS8:RC, -8
+    |  checkfunc RB, ->vmeta_call
+    |  ins_call
+    break;
+
+  case BC_CALLMT:
+    |  // RA = base*8, (RB = 0,) RC = extra_nargs*8
+    |  addu NARGS8:RD, NARGS8:RD, MULTRES	// BC_CALLT gets RC from RD.
+    |  // Fall through. Assumes BC_CALLT follows.
+    break;
+  case BC_CALLT:
+    |  // RA = base*8, (RB = 0,) RC = (nargs+1)*8
+    |  daddu RA, BASE, RA
+    |  ld RB, 0(RA)
+    |   move NARGS8:RC, RD
+    |    ld TMP1, FRAME_PC(BASE)
+    |   daddiu RA, RA, 16
+    |  addiu NARGS8:RC, NARGS8:RC, -8
+    |  checktp CARG3, RB, -LJ_TFUNC, ->vmeta_callt
+    |->BC_CALLT_Z:
+    |  andi TMP0, TMP1, FRAME_TYPE	// Caveat: preserve TMP0 until the 'or'.
+    |   lbu TMP3, LFUNC:CARG3->ffid
+    |  bnez TMP0, >7
+    |.  xori TMP2, TMP1, FRAME_VARG
+    |1:
+    |  sd RB, FRAME_FUNC(BASE)		// Copy function down, but keep PC.
+    |  sltiu AT, TMP3, 2		// (> FF_C) Calling a fast function?
+    |  move TMP2, BASE
+    |  move RB, CARG3
+    |  beqz NARGS8:RC, >3
+    |.  move TMP3, NARGS8:RC
+    |2:
+    |   ld CRET1, 0(RA)
+    |    daddiu RA, RA, 8
+    |  addiu TMP3, TMP3, -8
+    |   sd CRET1, 0(TMP2)
+    |  bnez TMP3, <2
+    |.   daddiu TMP2, TMP2, 8
+    |3:
+    |  or TMP0, TMP0, AT
+    |  beqz TMP0, >5
+    |.  nop
+    |4:
+    |  ins_callt
+    |
+    |5:  // Tailcall to a fast function with a Lua frame below.
+    |  lw INS, -4(TMP1)
+    |  decode_RA8a RA, INS
+    |  decode_RA8b RA
+    |  dsubu TMP1, BASE, RA
+    |  ld TMP1, -32(TMP1)
+    |  cleartp LFUNC:TMP1
+    |  ld TMP1, LFUNC:TMP1->pc
+    |  b <4
+    |.  ld KBASE, PC2PROTO(k)(TMP1)	// Need to prepare KBASE.
+    |
+    |7:  // Tailcall from a vararg function.
+    |  andi AT, TMP2, FRAME_TYPEP
+    |  bnez AT, <1			// Vararg frame below?
+    |.  dsubu TMP2, BASE, TMP2		// Relocate BASE down.
+    |  move BASE, TMP2
+    |  ld TMP1, FRAME_PC(TMP2)
+    |  b <1
+    |.  andi TMP0, TMP1, FRAME_TYPE
+    break;
+
+  case BC_ITERC:
+    |  // RA = base*8, (RB = (nresults+1)*8, RC = (nargs+1)*8 ((2+1)*8))
+    |  move TMP2, BASE			// Save old BASE fir vmeta_call.
+    |  daddu BASE, BASE, RA
+    |  ld RB, -24(BASE)
+    |   ld CARG1, -16(BASE)
+    |    ld CARG2, -8(BASE)
+    |  li NARGS8:RC, 16			// Iterators get 2 arguments.
+    |  sd RB, 0(BASE)			// Copy callable.
+    |   sd CARG1, 16(BASE)		// Copy state.
+    |    sd CARG2, 24(BASE)		// Copy control var.
+    |   daddiu BASE, BASE, 16
+    |  checkfunc RB, ->vmeta_call
+    |  ins_call
+    break;
+
+  case BC_ITERN:
+    |.if JIT and ENDIAN_LE
+    |  hotloop
+    |.endif
+    |->vm_IITERN:
+    |  // RA = base*8, (RB = (nresults+1)*8, RC = (nargs+1)*8 (2+1)*8)
+    |  daddu RA, BASE, RA
+    |  ld TAB:RB, -16(RA)
+    |   lw RC, -8+LO(RA)		// Get index from control var.
+    |  cleartp TAB:RB
+    |   daddiu PC, PC, 4
+    |  lw TMP0, TAB:RB->asize
+    |   ld TMP1, TAB:RB->array
+    |  dsll CARG3, TISNUM, 47
+    |1:  // Traverse array part.
+    |  sltu AT, RC, TMP0
+    |  beqz AT, >5			// Index points after array part?
+    |.  sll TMP3, RC, 3
+    |  daddu TMP3, TMP1, TMP3
+    |  ld CARG1, 0(TMP3)
+    |     lhu RD, -4+OFS_RD(PC)
+    |   or TMP2, RC, CARG3
+    |  beq CARG1, TISNIL, <1		// Skip holes in array part.
+    |.  addiu RC, RC, 1
+    |   sd TMP2, 0(RA)
+    |  sd CARG1, 8(RA)
+    |     lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |     decode_RD4b RD
+    |     daddu RD, RD, TMP3
+    |   sw RC, -8+LO(RA)		// Update control var.
+    |     daddu PC, PC, RD
+    |3:
+    |  ins_next
+    |
+    |5:  // Traverse hash part.
+    |  lw TMP1, TAB:RB->hmask
+    |  subu RC, RC, TMP0
+    |   ld TMP2, TAB:RB->node
+    |6:
+    |  sltu AT, TMP1, RC		// End of iteration? Branch to ITERL+1.
+    |  bnez AT, <3
+    |.  sll TMP3, RC, 5
+    |   sll RB, RC, 3
+    |   subu TMP3, TMP3, RB
+    |  daddu NODE:TMP3, TMP3, TMP2
+    |  ld CARG1, 0(NODE:TMP3)
+    |     lhu RD, -4+OFS_RD(PC)
+    |  beq CARG1, TISNIL, <6		// Skip holes in hash part.
+    |.  addiu RC, RC, 1
+    |  ld CARG2, NODE:TMP3->key
+    |     lui TMP3, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  sd CARG1, 8(RA)
+    |    addu RC, RC, TMP0
+    |     decode_RD4b RD
+    |     addu RD, RD, TMP3
+    |  sd CARG2, 0(RA)
+    |     daddu PC, PC, RD
+    |  b <3
+    |.  sw RC, -8+LO(RA)		// Update control var.
+    break;
+
+  case BC_ISNEXT:
+    |  // RA = base*8, RD = target (points to ITERN)
+    |  daddu RA, BASE, RA
+    |    srl TMP0, RD, 1
+    |  ld CFUNC:CARG1, -24(RA)
+    |    daddu TMP0, PC, TMP0
+    |   ld CARG2, -16(RA)
+    |   ld CARG3, -8(RA)
+    |    lui TMP2, (-(BCBIAS_J*4 >> 16) & 65535)
+    |  checkfunc CFUNC:CARG1, >5
+    |  gettp CARG2, CARG2
+    |  daddiu CARG2, CARG2, -LJ_TTAB
+    |  lbu TMP1, CFUNC:CARG1->ffid
+    |  daddiu CARG3, CARG3, -LJ_TNIL
+    |  or AT, CARG2, CARG3
+    |  daddiu TMP1, TMP1, -FF_next_N
+    |  or AT, AT, TMP1
+    |  bnez AT, >5
+    |.  lui TMP1, (LJ_KEYINDEX >> 16)
+    |  daddu PC, TMP0, TMP2
+    |  ori TMP1, TMP1, (LJ_KEYINDEX & 0xffff)
+    |  dsll TMP1, TMP1, 32
+    |  sd TMP1, -8(RA)
+    |1:
+    |  ins_next
+    |5:  // Despecialize bytecode if any of the checks fail.
+    |  li TMP3, BC_JMP
+    |   li TMP1, BC_ITERC
+    |  sb TMP3, -4+OFS_OP(PC)
+    |   daddu PC, TMP0, TMP2
+    |.if JIT
+    |  lb TMP0, OFS_OP(PC)
+    |  li AT, BC_ITERN
+    |  bne TMP0, AT, >6
+    |.  lhu TMP2, OFS_RD(PC)
+    |.endif
+    |  b <1
+    |.  sb TMP1, OFS_OP(PC)
+    |.if JIT
+    |6:  // Unpatch JLOOP.
+    |  ld TMP0, DISPATCH_J(trace)(DISPATCH)
+    |   sll TMP2, TMP2, 3
+    |  daddu TMP0, TMP0, TMP2
+    |  ld TRACE:TMP2, 0(TMP0)
+    |  lw TMP0, TRACE:TMP2->startins
+    |   li AT, -256
+    |  and TMP0, TMP0, AT
+    |  or TMP0, TMP0, TMP1
+    |  b <1
+    |.  sw TMP0, 0(PC)
+    |.endif
+    break;
+
+  case BC_VARG:
+    |  // RA = base*8, RB = (nresults+1)*8, RC = numparams*8
+    |  ld TMP0, FRAME_PC(BASE)
+    |  decode_RDtoRC8 RC, RD
+    |   decode_RB8a RB, INS
+    |  daddu RC, BASE, RC
+    |   decode_RB8b RB
+    |   daddu RA, BASE, RA
+    |  daddiu RC, RC, FRAME_VARG
+    |   daddu TMP2, RA, RB
+    |  daddiu TMP3, BASE, -16		// TMP3 = vtop
+    |  dsubu RC, RC, TMP0		// RC = vbase
+    |  // Note: RC may now be even _above_ BASE if nargs was < numparams.
+    |  beqz RB, >5			// Copy all varargs?
+    |.  dsubu TMP1, TMP3, RC
+    |  daddiu TMP2, TMP2, -16
+    |1:  // Copy vararg slots to destination slots.
+    |  ld CARG1, 0(RC)
+    |  sltu AT, RC, TMP3
+    |    daddiu RC, RC, 8
+    |.if MIPSR6
+    |  selnez CARG1, CARG1, AT
+    |  seleqz AT, TISNIL, AT
+    |  or CARG1, CARG1, AT
+    |.else
+    |  movz CARG1, TISNIL, AT
+    |.endif
+    |  sd CARG1, 0(RA)
+    |  sltu AT, RA, TMP2
+    |  bnez AT, <1
+    |.   daddiu RA, RA, 8
+    |3:
+    |  ins_next
+    |
+    |5:  // Copy all varargs.
+    |  ld TMP0, L->maxstack
+    |  blez TMP1, <3			// No vararg slots?
+    |.  li MULTRES, 8			// MULTRES = (0+1)*8
+    |  daddu TMP2, RA, TMP1
+    |  sltu AT, TMP0, TMP2
+    |  bnez AT, >7
+    |.  daddiu MULTRES, TMP1, 8
+    |6:
+    |  ld CRET1, 0(RC)
+    |   daddiu RC, RC, 8
+    |  sd CRET1, 0(RA)
+    |  sltu AT, RC, TMP3
+    |  bnez AT, <6			// More vararg slots?
+    |.  daddiu RA, RA, 8
+    |  b <3
+    |.  nop
+    |
+    |7:  // Grow stack for varargs.
+    |  load_got lj_state_growstack
+    |   sd RA, L->top
+    |  dsubu RA, RA, BASE
+    |   sd BASE, L->base
+    |  dsubu BASE, RC, BASE		// Need delta, because BASE may change.
+    |   sd PC, SAVE_PC
+    |  srl CARG2, TMP1, 3
+    |  call_intern lj_state_growstack	// (lua_State *L, int n)
+    |.  move CARG1, L
+    |  move RC, BASE
+    |  ld BASE, L->base
+    |  daddu RA, BASE, RA
+    |  daddu RC, BASE, RC
+    |  b <6
+    |.  daddiu TMP3, BASE, -16
+    break;
+
+  /* -- Returns ----------------------------------------------------------- */
+
+  case BC_RETM:
+    |  // RA = results*8, RD = extra_nresults*8
+    |  addu RD, RD, MULTRES		// MULTRES >= 8, so RD >= 8.
+    |  // Fall through. Assumes BC_RET follows.
+    break;
+
+  case BC_RET:
+    |  // RA = results*8, RD = (nresults+1)*8
+    |  ld PC, FRAME_PC(BASE)
+    |   daddu RA, BASE, RA
+    |    move MULTRES, RD
+    |1:
+    |  andi TMP0, PC, FRAME_TYPE
+    |  bnez TMP0, ->BC_RETV_Z
+    |.  xori TMP1, PC, FRAME_VARG
+    |
+    |->BC_RET_Z:
+    |  // BASE = base, RA = resultptr, RD = (nresults+1)*8, PC = return
+    |   lw INS, -4(PC)
+    |    daddiu TMP2, BASE, -16
+    |    daddiu RC, RD, -8
+    |  decode_RA8a TMP0, INS
+    |   decode_RB8a RB, INS
+    |  decode_RA8b TMP0
+    |   decode_RB8b RB
+    |   daddu TMP3, TMP2, RB
+    |  beqz RC, >3
+    |.  dsubu BASE, TMP2, TMP0
+    |2:
+    |   ld CRET1, 0(RA)
+    |    daddiu RA, RA, 8
+    |  daddiu RC, RC, -8
+    |   sd CRET1, 0(TMP2)
+    |  bnez RC, <2
+    |.   daddiu TMP2, TMP2, 8
+    |3:
+    |  daddiu TMP3, TMP3, -8
+    |5:
+    |  sltu AT, TMP2, TMP3
+    |  bnez AT, >6
+    |.  ld LFUNC:TMP1, FRAME_FUNC(BASE)
+    |  ins_next1
+    |  cleartp LFUNC:TMP1
+    |  ld TMP1, LFUNC:TMP1->pc
+    |  ld KBASE, PC2PROTO(k)(TMP1)
+    |  ins_next2
+    |
+    |6:  // Fill up results with nil.
+    |  sd TISNIL, 0(TMP2)
+    |  b <5
+    |.  daddiu TMP2, TMP2, 8
+    |
+    |->BC_RETV_Z:  // Non-standard return case.
+    |  andi TMP2, TMP1, FRAME_TYPEP
+    |  bnez TMP2, ->vm_return
+    |.  nop
+    |  // Return from vararg function: relocate BASE down.
+    |  dsubu BASE, BASE, TMP1
+    |  b <1
+    |.  ld PC, FRAME_PC(BASE)
+    break;
+
+  case BC_RET0: case BC_RET1:
+    |  // RA = results*8, RD = (nresults+1)*8
+    |  ld PC, FRAME_PC(BASE)
+    |   daddu RA, BASE, RA
+    |    move MULTRES, RD
+    |  andi TMP0, PC, FRAME_TYPE
+    |  bnez TMP0, ->BC_RETV_Z
+    |.  xori TMP1, PC, FRAME_VARG
+    |  lw INS, -4(PC)
+    |   daddiu TMP2, BASE, -16
+    if (op == BC_RET1) {
+      |  ld CRET1, 0(RA)
+    }
+    |  decode_RB8a RB, INS
+    |   decode_RA8a RA, INS
+    |  decode_RB8b RB
+    |   decode_RA8b RA
+    |   dsubu BASE, TMP2, RA
+    if (op == BC_RET1) {
+      |  sd CRET1, 0(TMP2)
+    }
+    |5:
+    |  sltu AT, RD, RB
+    |  bnez AT, >6
+    |.  ld TMP1, FRAME_FUNC(BASE)
+    |  ins_next1
+    |  cleartp LFUNC:TMP1
+    |  ld TMP1, LFUNC:TMP1->pc
+    |  ld KBASE, PC2PROTO(k)(TMP1)
+    |  ins_next2
+    |
+    |6:  // Fill up results with nil.
+    |  daddiu TMP2, TMP2, 8
+    |  daddiu RD, RD, 8
+    |  b <5
+    if (op == BC_RET1) {
+      |.  sd TISNIL, 0(TMP2)
+    } else {
+      |.  sd TISNIL, -8(TMP2)
+    }
+    break;
+
+  /* -- Loops and branches ------------------------------------------------ */
+
+  case BC_FORL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IFORL follows.
+    break;
+
+  case BC_JFORI:
+  case BC_JFORL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_FORI:
+  case BC_IFORL:
+    |  // RA = base*8, RD = target (after end of loop or start of loop)
+    vk = (op == BC_IFORL || op == BC_JFORL);
+    |  daddu RA, BASE, RA
+    |  ld CARG1, FORL_IDX*8(RA)		// IDX CARG1 - CARG3 type
+    |  gettp CARG3, CARG1
+    if (op != BC_JFORL) {
+      |  srl RD, RD, 1
+      |  lui TMP2, (-(BCBIAS_J*4 >> 16) & 65535)
+      |  daddu TMP2, RD, TMP2
+    }
+    if (!vk) {
+      |  ld CARG2, FORL_STOP*8(RA)	// STOP CARG2 - CARG4 type
+      |  ld CRET1, FORL_STEP*8(RA)	// STEP CRET1 - CRET2 type
+      |  gettp CARG4, CARG2
+      |  bne CARG3, TISNUM, >5
+      |.  gettp CRET2, CRET1
+      |  bne CARG4, TISNUM, ->vmeta_for
+      |.  sextw CARG3, CARG1
+      |  bne CRET2, TISNUM, ->vmeta_for
+      |.  sextw CARG2, CARG2
+      |  dext AT, CRET1, 31, 0
+      |  slt CRET1, CARG2, CARG3
+      |  slt TMP1, CARG3, CARG2
+      |.if MIPSR6
+      |  selnez TMP1, TMP1, AT
+      |  seleqz CRET1, CRET1, AT
+      |  or CRET1, CRET1, TMP1
+      |.else
+      |  movn CRET1, TMP1, AT
+      |.endif
+    } else {
+      |  bne CARG3, TISNUM, >5
+      |.  ld CARG2, FORL_STEP*8(RA)	// STEP CARG2 - CARG4 type
+      |    ld CRET1, FORL_STOP*8(RA)	// STOP CRET1 - CRET2 type
+      |  sextw TMP3, CARG1
+      |   sextw CARG2, CARG2
+      |    sextw CRET1, CRET1
+      |  addu CARG1, TMP3, CARG2
+      |  xor TMP0, CARG1, TMP3
+      |  xor TMP1, CARG1, CARG2
+      |  and TMP0, TMP0, TMP1
+      |  slt TMP1, CARG1, CRET1
+      |  slt CRET1, CRET1, CARG1
+      |  slt AT, CARG2, r0
+      |   slt TMP0, TMP0, r0		// ((y^a) & (y^b)) < 0: overflow.
+      |.if MIPSR6
+      |  selnez TMP1, TMP1, AT
+      |  seleqz CRET1, CRET1, AT
+      |  or CRET1, CRET1, TMP1
+      |.else
+      |  movn CRET1, TMP1, AT
+      |.endif
+      |   or CRET1, CRET1, TMP0
+      |  zextw CARG1, CARG1
+      |  settp CARG1, TISNUM
+    }
+    |1:
+    if (op == BC_FORI) {
+      |.if MIPSR6
+      |  selnez TMP2, TMP2, CRET1
+      |.else
+      |  movz TMP2, r0, CRET1
+      |.endif
+      |  daddu PC, PC, TMP2
+    } else if (op == BC_JFORI) {
+      |  daddu PC, PC, TMP2
+      |  lhu RD, -4+OFS_RD(PC)
+    } else if (op == BC_IFORL) {
+      |.if MIPSR6
+      |  seleqz TMP2, TMP2, CRET1
+      |.else
+      |  movn TMP2, r0, CRET1
+      |.endif
+      |  daddu PC, PC, TMP2
+    }
+    if (vk) {
+      |  sd CARG1, FORL_IDX*8(RA)
+    }
+    |  ins_next1
+    |  sd CARG1, FORL_EXT*8(RA)
+    |2:
+    if (op == BC_JFORI) {
+      |  beqz CRET1, =>BC_JLOOP
+      |.  decode_RD8b RD
+    } else if (op == BC_JFORL) {
+      |  beqz CRET1, =>BC_JLOOP
+    }
+    |  ins_next2
+    |
+    |5:  // FP loop.
+    |.if FPU
+    if (!vk) {
+      |  ldc1 f0, FORL_IDX*8(RA)
+      |   ldc1 f2, FORL_STOP*8(RA)
+      |  sltiu TMP0, CARG3, LJ_TISNUM
+      |  sltiu TMP1, CARG4, LJ_TISNUM
+      |  sltiu AT, CRET2, LJ_TISNUM
+      |   ld TMP3, FORL_STEP*8(RA)
+      |  and TMP0, TMP0, TMP1
+      |  and AT, AT, TMP0
+      |  beqz AT, ->vmeta_for
+      |.  slt TMP3, TMP3, r0
+      |.if MIPSR6
+      |   dmtc1 TMP3, FTMP2
+      |  cmp.lt.d FTMP0, f0, f2
+      |  cmp.lt.d FTMP1, f2, f0
+      |  sel.d FTMP2, FTMP1, FTMP0
+      |  b <1
+      |.  dmfc1 CRET1, FTMP2
+      |.else
+      |  c.ole.d 0, f0, f2
+      |  c.ole.d 1, f2, f0
+      |  li CRET1, 1
+      |  movt CRET1, r0, 0
+      |  movt AT, r0, 1
+      |  b <1
+      |.  movn CRET1, AT, TMP3
+      |.endif
+    } else {
+      |  ldc1 f0, FORL_IDX*8(RA)
+      |   ldc1 f4, FORL_STEP*8(RA)
+      |    ldc1 f2, FORL_STOP*8(RA)
+      |   ld TMP3, FORL_STEP*8(RA)
+      |  add.d f0, f0, f4
+      |.if MIPSR6
+      |   slt TMP3, TMP3, r0
+      |   dmtc1 TMP3, FTMP2
+      |  cmp.lt.d FTMP0, f0, f2
+      |  cmp.lt.d FTMP1, f2, f0
+      |  sel.d FTMP2, FTMP1, FTMP0
+      |  dmfc1 CRET1, FTMP2
+      if (op == BC_IFORL) {
+	|  seleqz TMP2, TMP2, CRET1
+	|  daddu PC, PC, TMP2
+      }
+      |.else
+      |  c.ole.d 0, f0, f2
+      |  c.ole.d 1, f2, f0
+      |   slt TMP3, TMP3, r0
+      |  li CRET1, 1
+      |  li AT, 1
+      |  movt CRET1, r0, 0
+      |  movt AT, r0, 1
+      |  movn CRET1, AT, TMP3
+      if (op == BC_IFORL) {
+	|  movn TMP2, r0, CRET1
+	|  daddu PC, PC, TMP2
+      }
+      |.endif
+      |  sdc1 f0, FORL_IDX*8(RA)
+      |  ins_next1
+      |  b <2
+      |.  sdc1 f0, FORL_EXT*8(RA)
+    }
+    |.else
+    if (!vk) {
+      |  sltiu TMP0, CARG3, LJ_TISNUM
+      |  sltiu TMP1, CARG4, LJ_TISNUM
+      |  sltiu AT, CRET2, LJ_TISNUM
+      |  and TMP0, TMP0, TMP1
+      |  and AT, AT, TMP0
+      |  beqz AT, ->vmeta_for
+      |.  nop
+      |  bal ->vm_sfcmpolex
+      |.  lw TMP3, FORL_STEP*8+HI(RA)
+      |  b <1
+      |.  nop
+    } else {
+      |  load_got __adddf3
+      |  call_extern
+      |.  sw TMP2, TMPD
+      |  ld CARG2, FORL_STOP*8(RA)
+      |  move CARG1, CRET1
+      if ( op == BC_JFORL ) {
+	|  lhu RD, -4+OFS_RD(PC)
+	|  decode_RD8b RD
+      }
+      |  bal ->vm_sfcmpolex
+      |.  lw TMP3, FORL_STEP*8+HI(RA)
+      |  b <1
+      |.  lw TMP2, TMPD
+    }
+    |.endif
+    break;
+
+  case BC_ITERL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IITERL follows.
+    break;
+
+  case BC_JITERL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IITERL:
+    |  // RA = base*8, RD = target
+    |  daddu RA, BASE, RA
+    |  ld TMP1, 0(RA)
+    |  beq TMP1, TISNIL, >1		// Stop if iterator returned nil.
+    |.  nop
+    if (op == BC_JITERL) {
+      |  b =>BC_JLOOP
+      |.  sd TMP1, -8(RA)
+    } else {
+      |  branch_RD			// Otherwise save control var + branch.
+      |  sd TMP1, -8(RA)
+    }
+    |1:
+    |  ins_next
+    break;
+
+  case BC_LOOP:
+    |  // RA = base*8, RD = target (loop extent)
+    |  // Note: RA/RD is only used by trace recorder to determine scope/extent
+    |  // This opcode does NOT jump, it's only purpose is to detect a hot loop.
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_ILOOP follows.
+    break;
+
+  case BC_ILOOP:
+    |  // RA = base*8, RD = target (loop extent)
+    |  ins_next
+    break;
+
+  case BC_JLOOP:
+    |.if JIT
+    |  // RA = base*8 (ignored), RD = traceno*8
+    |  ld TMP1, DISPATCH_J(trace)(DISPATCH)
+    |   li AT, 0
+    |  daddu TMP1, TMP1, RD
+    |  // Traces on MIPS don't store the trace number, so use 0.
+    |   sd AT, DISPATCH_GL(vmstate)(DISPATCH)
+    |  ld TRACE:TMP2, 0(TMP1)
+    |   sd BASE, DISPATCH_GL(jit_base)(DISPATCH)
+    |  ld TMP2, TRACE:TMP2->mcode
+    |   sd L, DISPATCH_GL(tmpbuf.L)(DISPATCH)
+    |  jr TMP2
+    |.  daddiu JGL, DISPATCH, GG_DISP2G+32768
+    |.endif
+    break;
+
+  case BC_JMP:
+    |  // RA = base*8 (only used by trace recorder), RD = target
+    |  branch_RD
+    |  ins_next
+    break;
+
+  /* -- Function headers -------------------------------------------------- */
+
+  case BC_FUNCF:
+    |.if JIT
+    |  hotcall
+    |.endif
+  case BC_FUNCV:  /* NYI: compiled vararg functions. */
+    |  // Fall through. Assumes BC_IFUNCF/BC_IFUNCV follow.
+    break;
+
+  case BC_JFUNCF:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IFUNCF:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = LFUNC, RC = nargs*8
+    |  ld TMP2, L->maxstack
+    |   lbu TMP1, -4+PC2PROTO(numparams)(PC)
+    |    ld KBASE, -4+PC2PROTO(k)(PC)
+    |  sltu AT, TMP2, RA
+    |  bnez AT, ->vm_growstack_l
+    |.  sll TMP1, TMP1, 3
+    if (op != BC_JFUNCF) {
+      |  ins_next1
+    }
+    |2:
+    |  sltu AT, NARGS8:RC, TMP1		// Check for missing parameters.
+    |  bnez AT, >3
+    |.  daddu AT, BASE, NARGS8:RC
+    if (op == BC_JFUNCF) {
+      |  decode_RD8a RD, INS
+      |  b =>BC_JLOOP
+      |.  decode_RD8b RD
+    } else {
+      |  ins_next2
+    }
+    |
+    |3:  // Clear missing parameters.
+    |  sd TISNIL, 0(AT)
+    |  b <2
+    |.  addiu NARGS8:RC, NARGS8:RC, 8
+    break;
+
+  case BC_JFUNCV:
+#if !LJ_HASJIT
+    break;
+#endif
+    |  NYI  // NYI: compiled vararg functions
+    break;  /* NYI: compiled vararg functions. */
+
+  case BC_IFUNCV:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = LFUNC, RC = nargs*8
+    |   li TMP0, LJ_TFUNC
+    |   daddu TMP1, BASE, RC
+    |  ld TMP2, L->maxstack
+    |   settp LFUNC:RB, TMP0
+    |  daddu TMP0, RA, RC
+    |   sd LFUNC:RB, 0(TMP1)		// Store (tagged) copy of LFUNC.
+    |   daddiu TMP3, RC, 16+FRAME_VARG
+    |  sltu AT, TMP0, TMP2
+    |    ld KBASE, -4+PC2PROTO(k)(PC)
+    |  beqz AT, ->vm_growstack_l
+    |.  sd TMP3, 8(TMP1)		// Store delta + FRAME_VARG.
+    |  lbu TMP2, -4+PC2PROTO(numparams)(PC)
+    |   move RA, BASE
+    |   move RC, TMP1
+    |  ins_next1
+    |  beqz TMP2, >3
+    |.  daddiu BASE, TMP1, 16
+    |1:
+    |  ld TMP0, 0(RA)
+    |  sltu AT, RA, RC			// Less args than parameters?
+    |  move CARG1, TMP0
+    |.if MIPSR6
+    |  selnez TMP0, TMP0, AT
+    |  seleqz TMP3, TISNIL, AT
+    |  or TMP0, TMP0, TMP3
+    |  seleqz TMP3, CARG1, AT
+    |  selnez CARG1, TISNIL, AT
+    |  or CARG1, CARG1, TMP3
+    |.else
+    |  movz TMP0, TISNIL, AT		// Clear missing parameters.
+    |  movn CARG1, TISNIL, AT		// Clear old fixarg slot (help the GC).
+    |.endif
+    |    addiu TMP2, TMP2, -1
+    |  sd TMP0, 16(TMP1)
+    |    daddiu TMP1, TMP1, 8
+    |  sd CARG1, 0(RA)
+    |  bnez TMP2, <1
+    |.   daddiu RA, RA, 8
+    |3:
+    |  ins_next2
+    break;
+
+  case BC_FUNCC:
+  case BC_FUNCCW:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = CFUNC, RC = nargs*8
+    if (op == BC_FUNCC) {
+      |  ld CFUNCADDR, CFUNC:RB->f
+    } else {
+      |  ld CFUNCADDR, DISPATCH_GL(wrapf)(DISPATCH)
+    }
+    |  daddu TMP1, RA, NARGS8:RC
+    |  ld TMP2, L->maxstack
+    |   daddu RC, BASE, NARGS8:RC
+    |  sd BASE, L->base
+    |  sltu AT, TMP2, TMP1
+    |   sd RC, L->top
+    |    li_vmstate C
+    if (op == BC_FUNCCW) {
+      |  ld CARG2, CFUNC:RB->f
+    }
+    |  bnez AT, ->vm_growstack_c	// Need to grow stack.
+    |.  move CARG1, L
+    |  jalr CFUNCADDR			// (lua_State *L [, lua_CFunction f])
+    |.   st_vmstate
+    |  // Returns nresults.
+    |  ld BASE, L->base
+    |   sll RD, CRET1, 3
+    |  ld TMP1, L->top
+    |    li_vmstate INTERP
+    |  ld PC, FRAME_PC(BASE)		// Fetch PC of caller.
+    |   dsubu RA, TMP1, RD		// RA = L->top - nresults*8
+    |    sd L, DISPATCH_GL(cur_L)(DISPATCH)
+    |  b ->vm_returnc
+    |.   st_vmstate
+    break;
+
+  /* ---------------------------------------------------------------------- */
+
+  default:
+    fprintf(stderr, "Error: undefined opcode BC_%s\n", bc_names[op]);
+    exit(2);
+    break;
+  }
+}
+
+static int build_backend(BuildCtx *ctx)
+{
+  int op;
+
+  dasm_growpc(Dst, BC__MAX);
+
+  build_subroutines(ctx);
+
+  |.code_op
+  for (op = 0; op < BC__MAX; op++)
+    build_ins(ctx, (BCOp)op, op);
+
+  return BC__MAX;
+}
+
+/* Emit pseudo frame-info for all assembler functions. */
+static void emit_asm_debug(BuildCtx *ctx)
+{
+  int fcofs = (int)((uint8_t *)ctx->glob[GLOB_vm_ffi_call] - ctx->code);
+  int i;
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+    fprintf(ctx->fp, "\t.section .debug_frame,\"\",@progbits\n");
+    fprintf(ctx->fp,
+	".Lframe0:\n"
+	"\t.4byte .LECIE0-.LSCIE0\n"
+	".LSCIE0:\n"
+	"\t.4byte 0xffffffff\n"
+	"\t.byte 0x1\n"
+	"\t.string \"\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 31\n"
+	"\t.byte 0xc\n\t.uleb128 29\n\t.uleb128 0\n"
+	"\t.align 2\n"
+	".LECIE0:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE0:\n"
+	"\t.4byte .LEFDE0-.LASFDE0\n"
+	".LASFDE0:\n"
+	"\t.4byte .Lframe0\n"
+	"\t.8byte .Lbegin\n"
+	"\t.8byte %d\n"
+	"\t.byte 0xe\n\t.uleb128 %d\n"
+	"\t.byte 0x9f\n\t.sleb128 2*5\n"
+	"\t.byte 0x9e\n\t.sleb128 2*6\n",
+	fcofs, CFRAME_SIZE);
+    for (i = 23; i >= 16; i--)
+      fprintf(ctx->fp, "\t.byte %d\n\t.uleb128 %d\n", 0x80+i, 2*(30-i));
+#if !LJ_SOFTFP
+    for (i = 31; i >= 24; i--)
+      fprintf(ctx->fp, "\t.byte %d\n\t.uleb128 %d\n", 0x80+32+i, 2*(46-i));
+#endif
+    fprintf(ctx->fp,
+	"\t.align 2\n"
+	".LEFDE0:\n\n");
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".LSFDE1:\n"
+	"\t.4byte .LEFDE1-.LASFDE1\n"
+	".LASFDE1:\n"
+	"\t.4byte .Lframe0\n"
+	"\t.4byte lj_vm_ffi_call\n"
+	"\t.4byte %d\n"
+	"\t.byte 0x9f\n\t.uleb128 2*1\n"
+	"\t.byte 0x90\n\t.uleb128 2*2\n"
+	"\t.byte 0xd\n\t.uleb128 0x10\n"
+	"\t.align 2\n"
+	".LEFDE1:\n\n", (int)ctx->codesz - fcofs);
+#endif
+#if !LJ_NO_UNWIND
+    /* NYI */
+#endif
+    break;
+  default:
+    break;
+  }
+}
+
diff --git a/libs/luajit-cmake/luajit/src/vm_ppc.dasc b/libs/luajit-cmake/luajit/src/vm_ppc.dasc
new file mode 100644
index 0000000..3cad37d
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/vm_ppc.dasc
@@ -0,0 +1,6041 @@
+|// Low-level VM code for PowerPC 32 bit or 32on64 bit mode.
+|// Bytecode interpreter, fast functions and helper functions.
+|// Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+|
+|.arch ppc
+|.section code_op, code_sub
+|
+|.actionlist build_actionlist
+|.globals GLOB_
+|.globalnames globnames
+|.externnames extnames
+|
+|// Note: The ragged indentation of the instructions is intentional.
+|//       The starting columns indicate data dependencies.
+|
+|//-----------------------------------------------------------------------
+|
+|// DynASM defines used by the PPC port:
+|//
+|// P64     64 bit pointers (only for GPR64 testing).
+|// GPR64   64 bit registers (but possibly 32 bit pointers, e.g. PS3).
+|//         Affects reg saves, stack layout, carry/overflow/dot flags etc.
+|// FRAME32 Use 32 bit frame layout, even with GPR64 (Xbox 360).
+|// TOC     Need table of contents (64 bit or 32 bit variant, e.g. PS3).
+|//         Function pointers are really a struct: code, TOC, env (optional).
+|// TOCENV  Function pointers have an environment pointer, too (not on PS3).
+|// PPE     Power Processor Element of Cell (PS3) or Xenon (Xbox 360).
+|//         Must avoid (slow) micro-coded instructions.
+|
+|.if P64
+|.define TOC, 1
+|.define TOCENV, 1
+|.macro lpx, a, b, c; ldx a, b, c; .endmacro
+|.macro lp, a, b; ld a, b; .endmacro
+|.macro stp, a, b; std a, b; .endmacro
+|.define decode_OPP, decode_OP8
+|.if FFI
+|// Missing: Calling conventions, 64 bit regs, TOC.
+|.error lib_ffi not yet implemented for PPC64
+|.endif
+|.else
+|.macro lpx, a, b, c; lwzx a, b, c; .endmacro
+|.macro lp, a, b; lwz a, b; .endmacro
+|.macro stp, a, b; stw a, b; .endmacro
+|.define decode_OPP, decode_OP4
+|.endif
+|
+|// Convenience macros for TOC handling.
+|.if TOC
+|// Linker needs a TOC patch area for every external call relocation.
+|.macro blex, target; bl extern target@plt; nop; .endmacro
+|.macro .toc, a, b; a, b; .endmacro
+|.if P64
+|.define TOC_OFS,	 8
+|.define ENV_OFS,	16
+|.else
+|.define TOC_OFS,	4
+|.define ENV_OFS,	8
+|.endif
+|.else  // No TOC.
+|.macro blex, target; bl extern target@plt; .endmacro
+|.macro .toc, a, b; .endmacro
+|.endif
+|.macro .tocenv, a, b; .if TOCENV; a, b; .endif; .endmacro
+|
+|.macro .gpr64, a, b; .if GPR64; a, b; .endif; .endmacro
+|
+|.macro andix., y, a, i
+|.if PPE
+|  rlwinm y, a, 0, 31-lj_fls(i), 31-lj_ffs(i)
+|  cmpwi y, 0
+|.else
+|  andi. y, a, i
+|.endif
+|.endmacro
+|
+|.macro clrso, reg
+|.if PPE
+|  li reg, 0
+|  mtxer reg
+|.else
+|  mcrxr cr0
+|.endif
+|.endmacro
+|
+|.macro checkov, reg, noov
+|.if PPE
+|  mfxer reg
+|  add reg, reg, reg
+|  cmpwi reg, 0
+|   li reg, 0
+|   mtxer reg
+|  bgey noov
+|.else
+|  mcrxr cr0
+|  bley noov
+|.endif
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Fixed register assignments for the interpreter.
+|// Don't use: r1 = sp, r2 and r13 = reserved (TOC, TLS or SDATA)
+|
+|.macro .FPU, a, b
+|.if FPU
+|  a, b
+|.endif
+|.endmacro
+|
+|.macro .FPU, a, b, c
+|.if FPU
+|  a, b, c
+|.endif
+|.endmacro
+|
+|// The following must be C callee-save (but BASE is often refetched).
+|.define BASE,		r14	// Base of current Lua stack frame.
+|.define KBASE,		r15	// Constants of current Lua function.
+|.define PC,		r16	// Next PC.
+|.define DISPATCH,	r17	// Opcode dispatch table.
+|.define LREG,		r18	// Register holding lua_State (also in SAVE_L).
+|.define MULTRES,	r19	// Size of multi-result: (nresults+1)*8.
+|.define JGL,		r31	// On-trace: global_State + 32768.
+|
+|// Constants for type-comparisons, stores and conversions. C callee-save.
+|.define TISNUM,	r22
+|.define TISNIL,	r23
+|.define ZERO,		r24
+|.if FPU
+|.define TOBIT,		f30	// 2^52 + 2^51.
+|.define TONUM,		f31	// 2^52 + 2^51 + 2^31.
+|.endif
+|
+|// The following temporaries are not saved across C calls, except for RA.
+|.define RA,		r20	// Callee-save.
+|.define RB,		r10
+|.define RC,		r11
+|.define RD,		r12
+|.define INS,		r7	// Overlaps CARG5.
+|
+|.define TMP0,		r0
+|.define TMP1,		r8
+|.define TMP2,		r9
+|.define TMP3,		r6	// Overlaps CARG4.
+|
+|// Saved temporaries.
+|.define SAVE0,		r21
+|.define SAVE1,		r25
+|
+|// Calling conventions.
+|.define CARG1,		r3
+|.define CARG2,		r4
+|.define CARG3,		r5
+|.define CARG4,		r6	// Overlaps TMP3.
+|.define CARG5,		r7	// Overlaps INS.
+|
+|.if FPU
+|.define FARG1,		f1
+|.define FARG2,		f2
+|.endif
+|
+|.define CRET1,		r3
+|.define CRET2,		r4
+|
+|.define TOCREG,	r2	// TOC register (only used by C code).
+|.define ENVREG,	r11	// Environment pointer (nested C functions).
+|
+|// Stack layout while in interpreter. Must match with lj_frame.h.
+|.if GPR64
+|.if FRAME32
+|
+|//			456(sp) // \ 32/64 bit C frame info
+|.define TONUM_LO,	452(sp) // |
+|.define TONUM_HI,	448(sp) // |
+|.define TMPD_LO,	444(sp) // |
+|.define TMPD_HI,	440(sp) // |
+|.define SAVE_CR,	432(sp) // | 64 bit CR save.
+|.define SAVE_ERRF,	424(sp) //  > Parameter save area.
+|.define SAVE_NRES,	420(sp) // |
+|.define SAVE_L,	416(sp) // |
+|.define SAVE_PC,	412(sp) // |
+|.define SAVE_MULTRES,	408(sp) // |
+|.define SAVE_CFRAME,	400(sp) // / 64 bit C frame chain.
+|//			392(sp) // Reserved.
+|.define CFRAME_SPACE,	384     // Delta for sp.
+|// Back chain for sp:	384(sp) <-- sp entering interpreter
+|.define SAVE_LR,	376(sp) // 32 bit LR stored in hi-part.
+|.define SAVE_GPR_,	232     // .. 232+18*8: 64 bit GPR saves.
+|.define SAVE_FPR_,	88      // .. 88+18*8: 64 bit FPR saves.
+|//			80(sp) // Needed for 16 byte stack frame alignment.
+|//			16(sp)  // Callee parameter save area (ABI mandated).
+|//			8(sp)   // Reserved
+|// Back chain for sp:	0(sp)   <-- sp while in interpreter
+|// 32 bit sp stored in hi-part of 0(sp).
+|
+|.define TMPD_BLO,	447(sp)
+|.define TMPD,		TMPD_HI
+|.define TONUM_D,	TONUM_HI
+|
+|.else
+|
+|//			508(sp) // \ 32 bit C frame info.
+|.define SAVE_ERRF,	472(sp) // |
+|.define SAVE_NRES,	468(sp) // |
+|.define SAVE_L,	464(sp) //  > Parameter save area.
+|.define SAVE_PC,	460(sp) // |
+|.define SAVE_MULTRES,	456(sp) // |
+|.define SAVE_CFRAME,	448(sp) // / 64 bit C frame chain.
+|.define SAVE_LR,	416(sp)
+|.define CFRAME_SPACE,	400     // Delta for sp.
+|// Back chain for sp:	400(sp) <-- sp entering interpreter
+|.define SAVE_FPR_,	256     // .. 256+18*8: 64 bit FPR saves.
+|.define SAVE_GPR_,	112     // .. 112+18*8: 64 bit GPR saves.
+|//			48(sp)  // Callee parameter save area (ABI mandated).
+|.define SAVE_TOC,	40(sp)  // TOC save area.
+|.define TMPD_LO,	36(sp)  // \ Link editor temp (ABI mandated).
+|.define TMPD_HI,	32(sp)  // /
+|.define TONUM_LO,	28(sp)  // \ Compiler temp (ABI mandated).
+|.define TONUM_HI,	24(sp)  // /
+|// Next frame lr:	16(sp)
+|.define SAVE_CR,	8(sp)  // 64 bit CR save.
+|// Back chain for sp:	0(sp)	<-- sp while in interpreter
+|
+|.define TMPD_BLO,	39(sp)
+|.define TMPD,		TMPD_HI
+|.define TONUM_D,	TONUM_HI
+|
+|.endif
+|.else
+|
+|.if FPU
+|.define SAVE_LR,	276(sp)
+|.define CFRAME_SPACE,	272     // Delta for sp.
+|// Back chain for sp:	272(sp) <-- sp entering interpreter
+|.define SAVE_FPR_,	128     // .. 128+18*8: 64 bit FPR saves.
+|.else
+|.define SAVE_LR,	132(sp)
+|.define CFRAME_SPACE,	128     // Delta for sp.
+|// Back chain for sp:	128(sp) <-- sp entering interpreter
+|.endif
+|.define SAVE_GPR_,	56      // .. 56+18*4: 32 bit GPR saves.
+|.define SAVE_CR,	52(sp)  // 32 bit CR save.
+|.define SAVE_ERRF,	48(sp)  // 32 bit C frame info.
+|.define SAVE_NRES,	44(sp)
+|.define SAVE_CFRAME,	40(sp)
+|.define SAVE_L,	36(sp)
+|.define SAVE_PC,	32(sp)
+|.define SAVE_MULTRES,	28(sp)
+|.define UNUSED1,	24(sp)
+|.if FPU
+|.define TMPD_LO,	20(sp)
+|.define TMPD_HI,	16(sp)
+|.define TONUM_LO,	12(sp)
+|.define TONUM_HI,	8(sp)
+|.else
+|.define SFSAVE_4,	20(sp)
+|.define SFSAVE_3,	16(sp)
+|.define SFSAVE_2,	12(sp)
+|.define SFSAVE_1,	8(sp)
+|.endif
+|// Next frame lr:	4(sp)
+|// Back chain for sp:	0(sp)	<-- sp while in interpreter
+|
+|.if FPU
+|.define TMPD_BLO,	23(sp)
+|.define TMPD,		TMPD_HI
+|.define TONUM_D,	TONUM_HI
+|.endif
+|
+|.endif
+|
+|.macro save_, reg
+|.if GPR64
+|  std r..reg, SAVE_GPR_+(reg-14)*8(sp)
+|.else
+|  stw r..reg, SAVE_GPR_+(reg-14)*4(sp)
+|.endif
+|  .FPU stfd f..reg, SAVE_FPR_+(reg-14)*8(sp)
+|.endmacro
+|.macro rest_, reg
+|.if GPR64
+|  ld r..reg, SAVE_GPR_+(reg-14)*8(sp)
+|.else
+|  lwz r..reg, SAVE_GPR_+(reg-14)*4(sp)
+|.endif
+|  .FPU lfd f..reg, SAVE_FPR_+(reg-14)*8(sp)
+|.endmacro
+|
+|.macro saveregs
+|.if GPR64 and not FRAME32
+|  stdu sp, -CFRAME_SPACE(sp)
+|.else
+|  stwu sp, -CFRAME_SPACE(sp)
+|.endif
+|  save_ 14; save_ 15; save_ 16
+|  mflr r0
+|  save_ 17; save_ 18; save_ 19; save_ 20; save_ 21; save_ 22
+|.if GPR64 and not FRAME32
+|  std r0, SAVE_LR
+|.else
+|  stw r0, SAVE_LR
+|.endif
+|  save_ 23; save_ 24; save_ 25
+|  mfcr r0
+|  save_ 26; save_ 27; save_ 28; save_ 29; save_ 30; save_ 31
+|.if GPR64
+|  std r0, SAVE_CR
+|.else
+|  stw r0, SAVE_CR
+|.endif
+|  .toc std TOCREG, SAVE_TOC
+|.endmacro
+|
+|.macro restoreregs
+|.if GPR64 and not FRAME32
+|  ld r0, SAVE_LR
+|.else
+|  lwz r0, SAVE_LR
+|.endif
+|.if GPR64
+|  ld r12, SAVE_CR
+|.else
+|  lwz r12, SAVE_CR
+|.endif
+|  rest_ 14; rest_ 15; rest_ 16; rest_ 17; rest_ 18; rest_ 19
+|  mtlr r0;
+|.if PPE; mtocrf 0x20, r12; .else; mtcrf 0x38, r12; .endif
+|  rest_ 20; rest_ 21; rest_ 22; rest_ 23; rest_ 24; rest_ 25
+|.if PPE; mtocrf 0x10, r12; .endif
+|  rest_ 26; rest_ 27; rest_ 28; rest_ 29; rest_ 30; rest_ 31
+|.if PPE; mtocrf 0x08, r12; .endif
+|  addi sp, sp, CFRAME_SPACE
+|.endmacro
+|
+|// Type definitions. Some of these are only used for documentation.
+|.type L,		lua_State,	LREG
+|.type GL,		global_State
+|.type TVALUE,		TValue
+|.type GCOBJ,		GCobj
+|.type STR,		GCstr
+|.type TAB,		GCtab
+|.type LFUNC,		GCfuncL
+|.type CFUNC,		GCfuncC
+|.type PROTO,		GCproto
+|.type UPVAL,		GCupval
+|.type NODE,		Node
+|.type NARGS8,		int
+|.type TRACE,		GCtrace
+|.type SBUF,		SBuf
+|
+|//-----------------------------------------------------------------------
+|
+|// Trap for not-yet-implemented parts.
+|.macro NYI; tw 4, sp, sp; .endmacro
+|
+|.if FPU
+|// int/FP conversions.
+|.macro tonum_i, freg, reg
+|  xoris reg, reg, 0x8000
+|  stw reg, TONUM_LO
+|  lfd freg, TONUM_D
+|  fsub freg, freg, TONUM
+|.endmacro
+|
+|.macro tonum_u, freg, reg
+|  stw reg, TONUM_LO
+|  lfd freg, TONUM_D
+|  fsub freg, freg, TOBIT
+|.endmacro
+|
+|.macro toint, reg, freg, tmpfreg
+|  fctiwz tmpfreg, freg
+|  stfd tmpfreg, TMPD
+|  lwz reg, TMPD_LO
+|.endmacro
+|
+|.macro toint, reg, freg
+|  toint reg, freg, freg
+|.endmacro
+|.endif
+|
+|//-----------------------------------------------------------------------
+|
+|// Access to frame relative to BASE.
+|.define FRAME_PC,	-8
+|.define FRAME_FUNC,	-4
+|
+|// Instruction decode.
+|.macro decode_OP4, dst, ins; rlwinm dst, ins, 2, 22, 29; .endmacro
+|.macro decode_OP8, dst, ins; rlwinm dst, ins, 3, 21, 28; .endmacro
+|.macro decode_RA8, dst, ins; rlwinm dst, ins, 27, 21, 28; .endmacro
+|.macro decode_RB8, dst, ins; rlwinm dst, ins, 11, 21, 28; .endmacro
+|.macro decode_RC8, dst, ins; rlwinm dst, ins, 19, 21, 28; .endmacro
+|.macro decode_RD8, dst, ins; rlwinm dst, ins, 19, 13, 28; .endmacro
+|
+|.macro decode_OP1, dst, ins; rlwinm dst, ins, 0, 24, 31; .endmacro
+|.macro decode_RD4, dst, ins; rlwinm dst, ins, 18, 14, 29; .endmacro
+|
+|// Instruction fetch.
+|.macro ins_NEXT1
+|  lwz INS, 0(PC)
+|   addi PC, PC, 4
+|.endmacro
+|// Instruction decode+dispatch. Note: optimized for e300!
+|.macro ins_NEXT2
+|  decode_OPP TMP1, INS
+|  lpx TMP0, DISPATCH, TMP1
+|  mtctr TMP0
+|   decode_RB8 RB, INS
+|   decode_RD8 RD, INS
+|   decode_RA8 RA, INS
+|   decode_RC8 RC, INS
+|  bctr
+|.endmacro
+|.macro ins_NEXT
+|  ins_NEXT1
+|  ins_NEXT2
+|.endmacro
+|
+|// Instruction footer.
+|.if 1
+|  // Replicated dispatch. Less unpredictable branches, but higher I-Cache use.
+|  .define ins_next, ins_NEXT
+|  .define ins_next_, ins_NEXT
+|  .define ins_next1, ins_NEXT1
+|  .define ins_next2, ins_NEXT2
+|.else
+|  // Common dispatch. Lower I-Cache use, only one (very) unpredictable branch.
+|  // Affects only certain kinds of benchmarks (and only with -j off).
+|  .macro ins_next
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next1
+|  .endmacro
+|  .macro ins_next2
+|    b ->ins_next
+|  .endmacro
+|  .macro ins_next_
+|  ->ins_next:
+|    ins_NEXT
+|  .endmacro
+|.endif
+|
+|// Call decode and dispatch.
+|.macro ins_callt
+|  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+|  lwz PC, LFUNC:RB->pc
+|  lwz INS, 0(PC)
+|   addi PC, PC, 4
+|  decode_OPP TMP1, INS
+|   decode_RA8 RA, INS
+|  lpx TMP0, DISPATCH, TMP1
+|   add RA, RA, BASE
+|  mtctr TMP0
+|  bctr
+|.endmacro
+|
+|.macro ins_call
+|  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, PC = caller PC
+|  stw PC, FRAME_PC(BASE)
+|  ins_callt
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Macros to test operand types.
+|.macro checknum, reg; cmplw reg, TISNUM; .endmacro
+|.macro checknum, cr, reg; cmplw cr, reg, TISNUM; .endmacro
+|.macro checkstr, reg; cmpwi reg, LJ_TSTR; .endmacro
+|.macro checktab, reg; cmpwi reg, LJ_TTAB; .endmacro
+|.macro checkfunc, reg; cmpwi reg, LJ_TFUNC; .endmacro
+|.macro checknil, reg; cmpwi reg, LJ_TNIL; .endmacro
+|
+|.macro branch_RD
+|  srwi TMP0, RD, 1
+|  addis PC, PC, -(BCBIAS_J*4 >> 16)
+|  add PC, PC, TMP0
+|.endmacro
+|
+|// Assumes DISPATCH is relative to GL.
+#define DISPATCH_GL(field)	(GG_DISP2G + (int)offsetof(global_State, field))
+#define DISPATCH_J(field)	(GG_DISP2J + (int)offsetof(jit_State, field))
+|
+#define PC2PROTO(field)  ((int)offsetof(GCproto, field)-(int)sizeof(GCproto))
+|
+|.macro hotcheck, delta, target
+|  rlwinm TMP1, PC, 31, 25, 30
+|  addi TMP1, TMP1, GG_DISP2HOT
+|  lhzx TMP2, DISPATCH, TMP1
+|  addic. TMP2, TMP2, -delta
+|  sthx TMP2, DISPATCH, TMP1
+|  blt target
+|.endmacro
+|
+|.macro hotloop
+|  hotcheck HOTCOUNT_LOOP, ->vm_hotloop
+|.endmacro
+|
+|.macro hotcall
+|  hotcheck HOTCOUNT_CALL, ->vm_hotcall
+|.endmacro
+|
+|// Set current VM state. Uses TMP0.
+|.macro li_vmstate, st; li TMP0, ~LJ_VMST_..st; .endmacro
+|.macro st_vmstate; stw TMP0, DISPATCH_GL(vmstate)(DISPATCH); .endmacro
+|
+|// Move table write barrier back. Overwrites mark and tmp.
+|.macro barrierback, tab, mark, tmp
+|  lwz tmp, DISPATCH_GL(gc.grayagain)(DISPATCH)
+|  // Assumes LJ_GC_BLACK is 0x04.
+|   rlwinm mark, mark, 0, 30, 28		// black2gray(tab)
+|  stw tab, DISPATCH_GL(gc.grayagain)(DISPATCH)
+|   stb mark, tab->marked
+|  stw tmp, tab->gclist
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+
+/* Generate subroutines used by opcodes and other parts of the VM. */
+/* The .code_sub section should be last to help static branch prediction. */
+static void build_subroutines(BuildCtx *ctx)
+{
+  |.code_sub
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Return handling ----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_returnp:
+  |  // See vm_return. Also: TMP2 = previous base.
+  |  andix. TMP0, PC, FRAME_P
+  |   li TMP1, LJ_TTRUE
+  |  beq ->cont_dispatch
+  |
+  |  // Return from pcall or xpcall fast func.
+  |  lwz PC, FRAME_PC(TMP2)		// Fetch PC of previous frame.
+  |  mr BASE, TMP2			// Restore caller base.
+  |  // Prepending may overwrite the pcall frame, so do it at the end.
+  |   stwu TMP1, FRAME_PC(RA)		// Prepend true to results.
+  |
+  |->vm_returnc:
+  |  addi RD, RD, 8			// RD = (nresults+1)*8.
+  |   andix. TMP0, PC, FRAME_TYPE
+  |  cmpwi cr1, RD, 0
+  |  li CRET1, LUA_YIELD
+  |  beq cr1, ->vm_unwind_c_eh
+  |  mr MULTRES, RD
+  |   beq ->BC_RET_Z			// Handle regular return to Lua.
+  |
+  |->vm_return:
+  |  // BASE = base, RA = resultptr, RD/MULTRES = (nresults+1)*8, PC = return
+  |  // TMP0 = PC & FRAME_TYPE
+  |  cmpwi TMP0, FRAME_C
+  |   rlwinm TMP2, PC, 0, 0, 28
+  |    li_vmstate C
+  |   sub TMP2, BASE, TMP2		// TMP2 = previous base.
+  |  bney ->vm_returnp
+  |
+  |  addic. TMP1, RD, -8
+  |   stp TMP2, L->base
+  |   lwz TMP2, SAVE_NRES
+  |    subi BASE, BASE, 8
+  |    st_vmstate
+  |   slwi TMP2, TMP2, 3
+  |  beq >2
+  |1:
+  |  addic. TMP1, TMP1, -8
+  |.if FPU
+  |   lfd f0, 0(RA)
+  |.else
+  |   lwz CARG1, 0(RA)
+  |   lwz CARG2, 4(RA)
+  |.endif
+  |    addi RA, RA, 8
+  |.if FPU
+  |   stfd f0, 0(BASE)
+  |.else
+  |   stw CARG1, 0(BASE)
+  |   stw CARG2, 4(BASE)
+  |.endif
+  |    addi BASE, BASE, 8
+  |  bney <1
+  |
+  |2:
+  |  cmpw TMP2, RD			// More/less results wanted?
+  |  bne >6
+  |3:
+  |  stp BASE, L->top			// Store new top.
+  |
+  |->vm_leave_cp:
+  |  lp TMP0, SAVE_CFRAME		// Restore previous C frame.
+  |   li CRET1, 0			// Ok return status for vm_pcall.
+  |  stp TMP0, L->cframe
+  |
+  |->vm_leave_unw:
+  |  restoreregs
+  |  blr
+  |
+  |6:
+  |  ble >7				// Less results wanted?
+  |  // More results wanted. Check stack size and fill up results with nil.
+  |  lwz TMP1, L->maxstack
+  |  cmplw BASE, TMP1
+  |  bge >8
+  |  stw TISNIL, 0(BASE)
+  |  addi RD, RD, 8
+  |  addi BASE, BASE, 8
+  |  b <2
+  |
+  |7:  // Less results wanted.
+  |  subfic TMP3, TMP2, 0		// LUA_MULTRET+1 case?
+  |   sub TMP0, RD, TMP2
+  |  subfe TMP1, TMP1, TMP1		// TMP1 = TMP2 == 0 ? 0 : -1
+  |   and TMP0, TMP0, TMP1
+  |  sub BASE, BASE, TMP0		// Either keep top or shrink it.
+  |  b <3
+  |
+  |8:  // Corner case: need to grow stack for filling up results.
+  |  // This can happen if:
+  |  // - A C function grows the stack (a lot).
+  |  // - The GC shrinks the stack in between.
+  |  // - A return back from a lua_call() with (high) nresults adjustment.
+  |  stp BASE, L->top			// Save current top held in BASE (yes).
+  |   mr SAVE0, RD
+  |  srwi CARG2, TMP2, 3
+  |  mr CARG1, L
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |    lwz TMP2, SAVE_NRES
+  |   mr RD, SAVE0
+  |    slwi TMP2, TMP2, 3
+  |  lp BASE, L->top			// Need the (realloced) L->top in BASE.
+  |  b <2
+  |
+  |->vm_unwind_c:			// Unwind C stack, return from vm_pcall.
+  |  // (void *cframe, int errcode)
+  |  mr sp, CARG1
+  |  mr CRET1, CARG2
+  |->vm_unwind_c_eh:			// Landing pad for external unwinder.
+  |  lwz L, SAVE_L
+  |  .toc ld TOCREG, SAVE_TOC
+  |   li TMP0, ~LJ_VMST_C
+  |  lwz GL:TMP1, L->glref
+  |   stw TMP0, GL:TMP1->vmstate
+  |  b ->vm_leave_unw
+  |
+  |->vm_unwind_ff:			// Unwind C stack, return from ff pcall.
+  |  // (void *cframe)
+  |.if GPR64
+  |  rldicr sp, CARG1, 0, 61
+  |.else
+  |  rlwinm sp, CARG1, 0, 0, 29
+  |.endif
+  |->vm_unwind_ff_eh:			// Landing pad for external unwinder.
+  |  lwz L, SAVE_L
+  |  .toc ld TOCREG, SAVE_TOC
+  |     li TISNUM, LJ_TISNUM		// Setup type comparison constants.
+  |  lp BASE, L->base
+  |     .FPU lus TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |   lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |     li ZERO, 0
+  |     .FPU stw TMP3, TMPD
+  |  li TMP1, LJ_TFALSE
+  |     .FPU ori TMP3, TMP3, 0x0004	// TONUM = 2^52 + 2^51 + 2^31 (float).
+  |     li TISNIL, LJ_TNIL
+  |    li_vmstate INTERP
+  |     .FPU lfs TOBIT, TMPD
+  |  lwz PC, FRAME_PC(BASE)		// Fetch PC of previous frame.
+  |  la RA, -8(BASE)			// Results start at BASE-8.
+  |     .FPU stw TMP3, TMPD
+  |   addi DISPATCH, DISPATCH, GG_G2DISP
+  |  stw TMP1, 0(RA)			// Prepend false to error message.
+  |  li RD, 16				// 2 results: false + error message.
+  |    st_vmstate
+  |     .FPU lfs TONUM, TMPD
+  |  b ->vm_returnc
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Grow stack for calls -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_growstack_c:			// Grow stack for C function.
+  |  li CARG2, LUA_MINSTACK
+  |  b >2
+  |
+  |->vm_growstack_l:			// Grow stack for Lua function.
+  |  // BASE = new base, RA = BASE+framesize*8, RC = nargs*8, PC = first PC
+  |  add RC, BASE, RC
+  |   sub RA, RA, BASE
+  |  stp BASE, L->base
+  |   addi PC, PC, 4			// Must point after first instruction.
+  |  stp RC, L->top
+  |   srwi CARG2, RA, 3
+  |2:
+  |  // L->base = new base, L->top = top
+  |   stw PC, SAVE_PC
+  |  mr CARG1, L
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  lp BASE, L->base
+  |  lp RC, L->top
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+  |  sub RC, RC, BASE
+  |  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
+  |  ins_callt				// Just retry the call.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Entry points into the assembler VM ---------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_resume:				// Setup C frame and resume thread.
+  |  // (lua_State *L, TValue *base, int nres1 = 0, ptrdiff_t ef = 0)
+  |  saveregs
+  |  mr L, CARG1
+  |    lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |  mr BASE, CARG2
+  |    lbz TMP1, L->status
+  |   stw L, SAVE_L
+  |  li PC, FRAME_CP
+  |  addi TMP0, sp, CFRAME_RESUME
+  |    addi DISPATCH, DISPATCH, GG_G2DISP
+  |   stw CARG3, SAVE_NRES
+  |    cmplwi TMP1, 0
+  |   stw CARG3, SAVE_ERRF
+  |   stp CARG3, SAVE_CFRAME
+  |   stw CARG1, SAVE_PC		// Any value outside of bytecode is ok.
+  |  stp TMP0, L->cframe
+  |    beq >3
+  |
+  |  // Resume after yield (like a return).
+  |  stw L, DISPATCH_GL(cur_L)(DISPATCH)
+  |  mr RA, BASE
+  |   lp BASE, L->base
+  |     li TISNUM, LJ_TISNUM		// Setup type comparison constants.
+  |   lp TMP1, L->top
+  |  lwz PC, FRAME_PC(BASE)
+  |     .FPU lus TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |    stb CARG3, L->status
+  |     .FPU stw TMP3, TMPD
+  |     .FPU ori TMP3, TMP3, 0x0004	// TONUM = 2^52 + 2^51 + 2^31 (float).
+  |     .FPU lfs TOBIT, TMPD
+  |   sub RD, TMP1, BASE
+  |     .FPU stw TMP3, TMPD
+  |     .FPU lus TMP0, 0x4338		// Hiword of 2^52 + 2^51 (double)
+  |   addi RD, RD, 8
+  |     .FPU stw TMP0, TONUM_HI
+  |    li_vmstate INTERP
+  |     li ZERO, 0
+  |    st_vmstate
+  |  andix. TMP0, PC, FRAME_TYPE
+  |   mr MULTRES, RD
+  |     .FPU lfs TONUM, TMPD
+  |     li TISNIL, LJ_TNIL
+  |  beq ->BC_RET_Z
+  |  b ->vm_return
+  |
+  |->vm_pcall:				// Setup protected C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1, ptrdiff_t ef)
+  |  saveregs
+  |  li PC, FRAME_CP
+  |  stw CARG4, SAVE_ERRF
+  |  b >1
+  |
+  |->vm_call:				// Setup C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1)
+  |  saveregs
+  |  li PC, FRAME_C
+  |
+  |1:  // Entry point for vm_pcall above (PC = ftype).
+  |  lp TMP1, L:CARG1->cframe
+  |    mr L, CARG1
+  |   stw CARG3, SAVE_NRES
+  |    lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |   stw CARG1, SAVE_L
+  |     mr BASE, CARG2
+  |    addi DISPATCH, DISPATCH, GG_G2DISP
+  |   stw CARG1, SAVE_PC		// Any value outside of bytecode is ok.
+  |  stp TMP1, SAVE_CFRAME
+  |  stp sp, L->cframe			// Add our C frame to cframe chain.
+  |
+  |3:  // Entry point for vm_cpcall/vm_resume (BASE = base, PC = ftype).
+  |  stw L, DISPATCH_GL(cur_L)(DISPATCH)
+  |  lp TMP2, L->base			// TMP2 = old base (used in vmeta_call).
+  |     li TISNUM, LJ_TISNUM		// Setup type comparison constants.
+  |   lp TMP1, L->top
+  |     .FPU lus TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |  add PC, PC, BASE
+  |     .FPU stw TMP3, TMPD
+  |     li ZERO, 0
+  |     .FPU ori TMP3, TMP3, 0x0004	// TONUM = 2^52 + 2^51 + 2^31 (float).
+  |     .FPU lfs TOBIT, TMPD
+  |  sub PC, PC, TMP2			// PC = frame delta + frame type
+  |     .FPU stw TMP3, TMPD
+  |     .FPU lus TMP0, 0x4338		// Hiword of 2^52 + 2^51 (double)
+  |   sub NARGS8:RC, TMP1, BASE
+  |     .FPU stw TMP0, TONUM_HI
+  |    li_vmstate INTERP
+  |     .FPU lfs TONUM, TMPD
+  |     li TISNIL, LJ_TNIL
+  |    st_vmstate
+  |
+  |->vm_call_dispatch:
+  |  // TMP2 = old base, BASE = new base, RC = nargs*8, PC = caller PC
+  |  lwz TMP0, FRAME_PC(BASE)
+  |   lwz LFUNC:RB, FRAME_FUNC(BASE)
+  |  checkfunc TMP0; bne ->vmeta_call
+  |
+  |->vm_call_dispatch_f:
+  |  ins_call
+  |  // BASE = new base, RB = func, RC = nargs*8, PC = caller PC
+  |
+  |->vm_cpcall:				// Setup protected C frame, call C.
+  |  // (lua_State *L, lua_CFunction func, void *ud, lua_CPFunction cp)
+  |  saveregs
+  |  mr L, CARG1
+  |   lwz TMP0, L:CARG1->stack
+  |  stw CARG1, SAVE_L
+  |   lp TMP1, L->top
+  |     lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
+  |  stw CARG1, SAVE_PC			// Any value outside of bytecode is ok.
+  |   sub TMP0, TMP0, TMP1		// Compute -savestack(L, L->top).
+  |    lp TMP1, L->cframe
+  |     addi DISPATCH, DISPATCH, GG_G2DISP
+  |  .toc lp CARG4, 0(CARG4)
+  |  li TMP2, 0
+  |   stw TMP0, SAVE_NRES		// Neg. delta means cframe w/o frame.
+  |  stw TMP2, SAVE_ERRF		// No error function.
+  |    stp TMP1, SAVE_CFRAME
+  |    stp sp, L->cframe		// Add our C frame to cframe chain.
+  |     stw L, DISPATCH_GL(cur_L)(DISPATCH)
+  |  mtctr CARG4
+  |  bctrl			// (lua_State *L, lua_CFunction func, void *ud)
+  |.if PPE
+  |  mr BASE, CRET1
+  |  cmpwi CRET1, 0
+  |.else
+  |  mr. BASE, CRET1
+  |.endif
+  |   li PC, FRAME_CP
+  |  bne <3				// Else continue with the call.
+  |  b ->vm_leave_cp			// No base? Just remove C frame.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Metamethod handling ------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// The lj_meta_* functions (except for lj_meta_cat) don't reallocate the
+  |// stack, so BASE doesn't need to be reloaded across these calls.
+  |
+  |//-- Continuation dispatch ----------------------------------------------
+  |
+  |->cont_dispatch:
+  |  // BASE = meta base, RA = resultptr, RD = (nresults+1)*8
+  |  lwz TMP0, -12(BASE)		// Continuation.
+  |   mr RB, BASE
+  |   mr BASE, TMP2			// Restore caller BASE.
+  |    lwz LFUNC:TMP1, FRAME_FUNC(TMP2)
+  |.if FFI
+  |  cmplwi TMP0, 1
+  |.endif
+  |     lwz PC, -16(RB)			// Restore PC from [cont|PC].
+  |   subi TMP2, RD, 8
+  |   stwx TISNIL, RA, TMP2		// Ensure one valid arg.
+  |.if FFI
+  |  ble >1
+  |.endif
+  |    lwz TMP1, LFUNC:TMP1->pc
+  |    lwz KBASE, PC2PROTO(k)(TMP1)
+  |  // BASE = base, RA = resultptr, RB = meta base
+  |  mtctr TMP0
+  |  bctr				// Jump to continuation.
+  |
+  |.if FFI
+  |1:
+  |  beq ->cont_ffi_callback		// cont = 1: return from FFI callback.
+  |  // cont = 0: tailcall from C function.
+  |  subi TMP1, RB, 16
+  |  sub RC, TMP1, BASE
+  |  b ->vm_call_tail
+  |.endif
+  |
+  |->cont_cat:				// RA = resultptr, RB = meta base
+  |  lwz INS, -4(PC)
+  |   subi CARG2, RB, 16
+  |  decode_RB8 SAVE0, INS
+  |.if FPU
+  |   lfd f0, 0(RA)
+  |.else
+  |   lwz TMP2, 0(RA)
+  |   lwz TMP3, 4(RA)
+  |.endif
+  |  add TMP1, BASE, SAVE0
+  |   stp BASE, L->base
+  |  cmplw TMP1, CARG2
+  |   sub CARG3, CARG2, TMP1
+  |  decode_RA8 RA, INS
+  |.if FPU
+  |   stfd f0, 0(CARG2)
+  |.else
+  |   stw TMP2, 0(CARG2)
+  |   stw TMP3, 4(CARG2)
+  |.endif
+  |  bney ->BC_CAT_Z
+  |.if FPU
+  |   stfdx f0, BASE, RA
+  |.else
+  |   stwux TMP2, RA, BASE
+  |   stw TMP3, 4(RA)
+  |.endif
+  |  b ->cont_nop
+  |
+  |//-- Table indexing metamethods -----------------------------------------
+  |
+  |->vmeta_tgets1:
+  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+  |  li TMP0, LJ_TSTR
+  |   decode_RB8 RB, INS
+  |  stw STR:RC, 4(CARG3)
+  |   add CARG2, BASE, RB
+  |  stw TMP0, 0(CARG3)
+  |  b >1
+  |
+  |->vmeta_tgets:
+  |  la CARG2, DISPATCH_GL(tmptv)(DISPATCH)
+  |  li TMP0, LJ_TTAB
+  |  stw TAB:RB, 4(CARG2)
+  |   la CARG3, DISPATCH_GL(tmptv2)(DISPATCH)
+  |  stw TMP0, 0(CARG2)
+  |   li TMP1, LJ_TSTR
+  |   stw STR:RC, 4(CARG3)
+  |   stw TMP1, 0(CARG3)
+  |  b >1
+  |
+  |->vmeta_tgetb:			// TMP0 = index
+  |.if not DUALNUM
+  |  tonum_u f0, TMP0
+  |.endif
+  |   decode_RB8 RB, INS
+  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+  |   add CARG2, BASE, RB
+  |.if DUALNUM
+  |  stw TISNUM, 0(CARG3)
+  |  stw TMP0, 4(CARG3)
+  |.else
+  |  stfd f0, 0(CARG3)
+  |.endif
+  |  b >1
+  |
+  |->vmeta_tgetv:
+  |  decode_RB8 RB, INS
+  |   decode_RC8 RC, INS
+  |  add CARG2, BASE, RB
+  |   add CARG3, BASE, RC
+  |1:
+  |  stp BASE, L->base
+  |  mr CARG1, L
+  |  stw PC, SAVE_PC
+  |  bl extern lj_meta_tget		// (lua_State *L, TValue *o, TValue *k)
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  cmplwi CRET1, 0
+  |  beq >3
+  |.if FPU
+  |   lfd f0, 0(CRET1)
+  |.else
+  |   lwz TMP0, 0(CRET1)
+  |   lwz TMP1, 4(CRET1)
+  |.endif
+  |  ins_next1
+  |.if FPU
+  |   stfdx f0, BASE, RA
+  |.else
+  |   stwux TMP0, RA, BASE
+  |   stw TMP1, 4(RA)
+  |.endif
+  |  ins_next2
+  |
+  |3:  // Call __index metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k
+  |  subfic TMP1, BASE, FRAME_CONT
+  |  lp BASE, L->top
+  |  stw PC, -16(BASE)			// [cont|PC]
+  |   add PC, TMP1, BASE
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |   li NARGS8:RC, 16			// 2 args for func(t, k).
+  |  b ->vm_call_dispatch_f
+  |
+  |->vmeta_tgetr:
+  |  bl extern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |  // Returns cTValue * or NULL.
+  |  cmplwi CRET1, 0
+  |  beq >1
+  |.if FPU
+  |  lfd f14, 0(CRET1)
+  |.else
+  |  lwz SAVE0, 0(CRET1)
+  |  lwz SAVE1, 4(CRET1)
+  |.endif
+  |  b ->BC_TGETR_Z
+  |1:
+  |  stwx TISNIL, BASE, RA
+  |  b ->cont_nop
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->vmeta_tsets1:
+  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+  |  li TMP0, LJ_TSTR
+  |   decode_RB8 RB, INS
+  |  stw STR:RC, 4(CARG3)
+  |   add CARG2, BASE, RB
+  |  stw TMP0, 0(CARG3)
+  |  b >1
+  |
+  |->vmeta_tsets:
+  |  la CARG2, DISPATCH_GL(tmptv)(DISPATCH)
+  |  li TMP0, LJ_TTAB
+  |  stw TAB:RB, 4(CARG2)
+  |   la CARG3, DISPATCH_GL(tmptv2)(DISPATCH)
+  |  stw TMP0, 0(CARG2)
+  |   li TMP1, LJ_TSTR
+  |   stw STR:RC, 4(CARG3)
+  |   stw TMP1, 0(CARG3)
+  |  b >1
+  |
+  |->vmeta_tsetb:			// TMP0 = index
+  |.if not DUALNUM
+  |  tonum_u f0, TMP0
+  |.endif
+  |   decode_RB8 RB, INS
+  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+  |   add CARG2, BASE, RB
+  |.if DUALNUM
+  |  stw TISNUM, 0(CARG3)
+  |  stw TMP0, 4(CARG3)
+  |.else
+  |  stfd f0, 0(CARG3)
+  |.endif
+  |  b >1
+  |
+  |->vmeta_tsetv:
+  |  decode_RB8 RB, INS
+  |   decode_RC8 RC, INS
+  |  add CARG2, BASE, RB
+  |   add CARG3, BASE, RC
+  |1:
+  |  stp BASE, L->base
+  |  mr CARG1, L
+  |  stw PC, SAVE_PC
+  |  bl extern lj_meta_tset		// (lua_State *L, TValue *o, TValue *k)
+  |  // Returns TValue * (finished) or NULL (metamethod).
+  |  cmplwi CRET1, 0
+  |.if FPU
+  |   lfdx f0, BASE, RA
+  |.else
+  |   lwzux TMP2, RA, BASE
+  |   lwz TMP3, 4(RA)
+  |.endif
+  |  beq >3
+  |  // NOBARRIER: lj_meta_tset ensures the table is not black.
+  |  ins_next1
+  |.if FPU
+  |   stfd f0, 0(CRET1)
+  |.else
+  |   stw TMP2, 0(CRET1)
+  |   stw TMP3, 4(CRET1)
+  |.endif
+  |  ins_next2
+  |
+  |3:  // Call __newindex metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k/(v)
+  |  subfic TMP1, BASE, FRAME_CONT
+  |  lp BASE, L->top
+  |  stw PC, -16(BASE)			// [cont|PC]
+  |   add PC, TMP1, BASE
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |   li NARGS8:RC, 24			// 3 args for func(t, k, v)
+  |.if FPU
+  |  stfd f0, 16(BASE)			// Copy value to third argument.
+  |.else
+  |  stw TMP2, 16(BASE)
+  |  stw TMP3, 20(BASE)
+  |.endif
+  |  b ->vm_call_dispatch_f
+  |
+  |->vmeta_tsetr:
+  |  stp BASE, L->base
+  |  mr CARG1, L
+  |  stw PC, SAVE_PC
+  |  bl extern lj_tab_setinth  // (lua_State *L, GCtab *t, int32_t key)
+  |  // Returns TValue *.
+  |.if FPU
+  |  stfd f14, 0(CRET1)
+  |.else
+  |  stw SAVE0, 0(CRET1)
+  |  stw SAVE1, 4(CRET1)
+  |.endif
+  |  b ->cont_nop
+  |
+  |//-- Comparison metamethods ---------------------------------------------
+  |
+  |->vmeta_comp:
+  |  mr CARG1, L
+  |   subi PC, PC, 4
+  |.if DUALNUM
+  |  mr CARG2, RA
+  |.else
+  |  add CARG2, BASE, RA
+  |.endif
+  |   stw PC, SAVE_PC
+  |.if DUALNUM
+  |  mr CARG3, RD
+  |.else
+  |  add CARG3, BASE, RD
+  |.endif
+  |   stp BASE, L->base
+  |  decode_OP1 CARG4, INS
+  |  bl extern lj_meta_comp  // (lua_State *L, TValue *o1, *o2, int op)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |3:
+  |  cmplwi CRET1, 1
+  |  bgt ->vmeta_binop
+  |  subfic CRET1, CRET1, 0
+  |4:
+  |  lwz INS, 0(PC)
+  |   addi PC, PC, 4
+  |  decode_RD4 TMP2, INS
+  |  addis TMP2, TMP2, -(BCBIAS_J*4 >> 16)
+  |  and TMP2, TMP2, CRET1
+  |  add PC, PC, TMP2
+  |->cont_nop:
+  |  ins_next
+  |
+  |->cont_ra:				// RA = resultptr
+  |  lwz INS, -4(PC)
+  |.if FPU
+  |   lfd f0, 0(RA)
+  |.else
+  |   lwz CARG1, 0(RA)
+  |   lwz CARG2, 4(RA)
+  |.endif
+  |  decode_RA8 TMP1, INS
+  |.if FPU
+  |   stfdx f0, BASE, TMP1
+  |.else
+  |   stwux CARG1, TMP1, BASE
+  |   stw CARG2, 4(TMP1)
+  |.endif
+  |  b ->cont_nop
+  |
+  |->cont_condt:			// RA = resultptr
+  |  lwz TMP0, 0(RA)
+  |  .gpr64 extsw TMP0, TMP0
+  |  subfic TMP0, TMP0, LJ_TTRUE	// Branch if result is true.
+  |  subfe CRET1, CRET1, CRET1
+  |  not CRET1, CRET1
+  |  b <4
+  |
+  |->cont_condf:			// RA = resultptr
+  |  lwz TMP0, 0(RA)
+  |  .gpr64 extsw TMP0, TMP0
+  |  subfic TMP0, TMP0, LJ_TTRUE	// Branch if result is false.
+  |  subfe CRET1, CRET1, CRET1
+  |  b <4
+  |
+  |->vmeta_equal:
+  |  // CARG2, CARG3, CARG4 are already set by BC_ISEQV/BC_ISNEV.
+  |  subi PC, PC, 4
+  |   stp BASE, L->base
+  |  mr CARG1, L
+  |   stw PC, SAVE_PC
+  |  bl extern lj_meta_equal  // (lua_State *L, GCobj *o1, *o2, int ne)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |
+  |->vmeta_equal_cd:
+  |.if FFI
+  |  mr CARG2, INS
+  |  subi PC, PC, 4
+  |   stp BASE, L->base
+  |  mr CARG1, L
+  |   stw PC, SAVE_PC
+  |  bl extern lj_meta_equal_cd		// (lua_State *L, BCIns op)
+  |  // Returns 0/1 or TValue * (metamethod).
+  |  b <3
+  |.endif
+  |
+  |->vmeta_istype:
+  |  subi PC, PC, 4
+  |   stp BASE, L->base
+  |   srwi CARG2, RA, 3
+  |   mr CARG1, L
+  |   srwi CARG3, RD, 3
+  |  stw PC, SAVE_PC
+  |  bl extern lj_meta_istype  // (lua_State *L, BCReg ra, BCReg tp)
+  |  b ->cont_nop
+  |
+  |//-- Arithmetic metamethods ---------------------------------------------
+  |
+  |->vmeta_arith_nv:
+  |  add CARG3, KBASE, RC
+  |  add CARG4, BASE, RB
+  |  b >1
+  |->vmeta_arith_nv2:
+  |.if DUALNUM
+  |  mr CARG3, RC
+  |  mr CARG4, RB
+  |  b >1
+  |.endif
+  |
+  |->vmeta_unm:
+  |  mr CARG3, RD
+  |  mr CARG4, RD
+  |  b >1
+  |
+  |->vmeta_arith_vn:
+  |  add CARG3, BASE, RB
+  |  add CARG4, KBASE, RC
+  |  b >1
+  |
+  |->vmeta_arith_vv:
+  |  add CARG3, BASE, RB
+  |  add CARG4, BASE, RC
+  |.if DUALNUM
+  |  b >1
+  |.endif
+  |->vmeta_arith_vn2:
+  |->vmeta_arith_vv2:
+  |.if DUALNUM
+  |  mr CARG3, RB
+  |  mr CARG4, RC
+  |.endif
+  |1:
+  |  add CARG2, BASE, RA
+  |   stp BASE, L->base
+  |  mr CARG1, L
+  |   stw PC, SAVE_PC
+  |  decode_OP1 CARG5, INS		// Caveat: CARG5 overlaps INS.
+  |  bl extern lj_meta_arith  // (lua_State *L, TValue *ra,*rb,*rc, BCReg op)
+  |  // Returns NULL (finished) or TValue * (metamethod).
+  |  cmplwi CRET1, 0
+  |  beq ->cont_nop
+  |
+  |  // Call metamethod for binary op.
+  |->vmeta_binop:
+  |  // BASE = old base, CRET1 = new base, stack = cont/func/o1/o2
+  |  sub TMP1, CRET1, BASE
+  |   stw PC, -16(CRET1)		// [cont|PC]
+  |   mr TMP2, BASE
+  |  addi PC, TMP1, FRAME_CONT
+  |   mr BASE, CRET1
+  |  li NARGS8:RC, 16			// 2 args for func(o1, o2).
+  |  b ->vm_call_dispatch
+  |
+  |->vmeta_len:
+#if LJ_52
+  |  mr SAVE0, CARG1
+#endif
+  |  mr CARG2, RD
+  |   stp BASE, L->base
+  |  mr CARG1, L
+  |   stw PC, SAVE_PC
+  |  bl extern lj_meta_len		// (lua_State *L, TValue *o)
+  |  // Returns NULL (retry) or TValue * (metamethod base).
+#if LJ_52
+  |  cmplwi CRET1, 0
+  |  bne ->vmeta_binop			// Binop call for compatibility.
+  |  mr CARG1, SAVE0
+  |  b ->BC_LEN_Z
+#else
+  |  b ->vmeta_binop			// Binop call for compatibility.
+#endif
+  |
+  |//-- Call metamethod ----------------------------------------------------
+  |
+  |->vmeta_call:			// Resolve and call __call metamethod.
+  |  // TMP2 = old base, BASE = new base, RC = nargs*8
+  |  mr CARG1, L
+  |   stp TMP2, L->base			// This is the callers base!
+  |  subi CARG2, BASE, 8
+  |   stw PC, SAVE_PC
+  |  add CARG3, BASE, RC
+  |   mr SAVE0, NARGS8:RC
+  |  bl extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
+  |   addi NARGS8:RC, SAVE0, 8		// Got one more argument now.
+  |  ins_call
+  |
+  |->vmeta_callt:			// Resolve __call for BC_CALLT.
+  |  // BASE = old base, RA = new base, RC = nargs*8
+  |  mr CARG1, L
+  |   stp BASE, L->base
+  |  subi CARG2, RA, 8
+  |   stw PC, SAVE_PC
+  |  add CARG3, RA, RC
+  |   mr SAVE0, NARGS8:RC
+  |  bl extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |  lwz TMP1, FRAME_PC(BASE)
+  |   addi NARGS8:RC, SAVE0, 8		// Got one more argument now.
+  |   lwz LFUNC:RB, FRAME_FUNC(RA)	// Guaranteed to be a function here.
+  |  b ->BC_CALLT_Z
+  |
+  |//-- Argument coercion for 'for' statement ------------------------------
+  |
+  |->vmeta_for:
+  |  mr CARG1, L
+  |   stp BASE, L->base
+  |  mr CARG2, RA
+  |   stw PC, SAVE_PC
+  |  mr SAVE0, INS
+  |  bl extern lj_meta_for	// (lua_State *L, TValue *base)
+  |.if JIT
+  |   decode_OP1 TMP0, SAVE0
+  |.endif
+  |  decode_RA8 RA, SAVE0
+  |.if JIT
+  |   cmpwi TMP0, BC_JFORI
+  |.endif
+  |  decode_RD8 RD, SAVE0
+  |.if JIT
+  |   beqy =>BC_JFORI
+  |.endif
+  |  b =>BC_FORI
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Fast functions -----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro .ffunc, name
+  |->ff_ .. name:
+  |.endmacro
+  |
+  |.macro .ffunc_1, name
+  |->ff_ .. name:
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG3, 0(BASE)
+  |    lwz CARG1, 4(BASE)
+  |  blt ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_2, name
+  |->ff_ .. name:
+  |  cmplwi NARGS8:RC, 16
+  |   lwz CARG3, 0(BASE)
+  |    lwz CARG4, 8(BASE)
+  |   lwz CARG1, 4(BASE)
+  |    lwz CARG2, 12(BASE)
+  |  blt ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_n, name
+  |->ff_ .. name:
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG1, 0(BASE)
+  |.if FPU
+  |    lfd FARG1, 0(BASE)
+  |.else
+  |    lwz CARG2, 4(BASE)
+  |.endif
+  |  blt ->fff_fallback
+  |  checknum CARG1; bge ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_nn, name
+  |->ff_ .. name:
+  |  cmplwi NARGS8:RC, 16
+  |   lwz CARG1, 0(BASE)
+  |.if FPU
+  |    lfd FARG1, 0(BASE)
+  |   lwz CARG3, 8(BASE)
+  |    lfd FARG2, 8(BASE)
+  |.else
+  |    lwz CARG2, 4(BASE)
+  |   lwz CARG3, 8(BASE)
+  |    lwz CARG4, 12(BASE)
+  |.endif
+  |  blt ->fff_fallback
+  |  checknum CARG1; bge ->fff_fallback
+  |  checknum CARG3; bge ->fff_fallback
+  |.endmacro
+  |
+  |// Inlined GC threshold check. Caveat: uses TMP0 and TMP1.
+  |.macro ffgccheck
+  |  lwz TMP0, DISPATCH_GL(gc.total)(DISPATCH)
+  |  lwz TMP1, DISPATCH_GL(gc.threshold)(DISPATCH)
+  |  cmplw TMP0, TMP1
+  |  bgel ->fff_gcstep
+  |.endmacro
+  |
+  |//-- Base library: checks -----------------------------------------------
+  |
+  |.ffunc_1 assert
+  |  li TMP1, LJ_TFALSE
+  |   la RA, -8(BASE)
+  |  cmplw cr1, CARG3, TMP1
+  |    lwz PC, FRAME_PC(BASE)
+  |  bge cr1, ->fff_fallback
+  |   stw CARG3, 0(RA)
+  |  addi RD, NARGS8:RC, 8		// Compute (nresults+1)*8.
+  |  addi TMP1, BASE, 8
+  |  add TMP2, RA, NARGS8:RC
+  |   stw CARG1, 4(RA)
+  |  beq ->fff_res			// Done if exactly 1 argument.
+  |1:
+  |  cmplw TMP1, TMP2
+  |.if FPU
+  |   lfd f0, 0(TMP1)
+  |   stfd f0, 0(TMP1)
+  |.else
+  |   lwz CARG1, 0(TMP1)
+  |   lwz CARG2, 4(TMP1)
+  |   stw CARG1, -8(TMP1)
+  |   stw CARG2, -4(TMP1)
+  |.endif
+  |    addi TMP1, TMP1, 8
+  |  bney <1
+  |  b ->fff_res
+  |
+  |.ffunc type
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG1, 0(BASE)
+  |  blt ->fff_fallback
+  |  .gpr64 extsw CARG1, CARG1
+  |  subfc TMP0, TISNUM, CARG1
+  |  subfe TMP2, CARG1, CARG1
+  |  orc TMP1, TMP2, TMP0
+  |  addi TMP1, TMP1, ~LJ_TISNUM+1
+  |  slwi TMP1, TMP1, 3
+  |.if FPU
+  |   la TMP2, CFUNC:RB->upvalue
+  |  lfdx FARG1, TMP2, TMP1
+  |.else
+  |  add TMP1, CFUNC:RB, TMP1
+  |  lwz CARG1, CFUNC:TMP1->upvalue[0].u32.hi
+  |  lwz CARG2, CFUNC:TMP1->upvalue[0].u32.lo
+  |.endif
+  |  b ->fff_resn
+  |
+  |//-- Base library: getters and setters ---------------------------------
+  |
+  |.ffunc_1 getmetatable
+  |  checktab CARG3; bne >6
+  |1:  // Field metatable must be at same offset for GCtab and GCudata!
+  |  lwz TAB:CARG1, TAB:CARG1->metatable
+  |2:
+  |  li CARG3, LJ_TNIL
+  |   cmplwi TAB:CARG1, 0
+  |  lwz STR:RC, DISPATCH_GL(gcroot[GCROOT_MMNAME+MM_metatable])(DISPATCH)
+  |   beq ->fff_restv
+  |  lwz TMP0, TAB:CARG1->hmask
+  |   li CARG3, LJ_TTAB			// Use metatable as default result.
+  |  lwz TMP1, STR:RC->sid
+  |  lwz NODE:TMP2, TAB:CARG1->node
+  |  and TMP1, TMP1, TMP0		// idx = str->sid & tab->hmask
+  |  slwi TMP0, TMP1, 5
+  |  slwi TMP1, TMP1, 3
+  |  sub TMP1, TMP0, TMP1
+  |  add NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+  |3:  // Rearranged logic, because we expect _not_ to find the key.
+  |  lwz CARG4, NODE:TMP2->key
+  |   lwz TMP0, 4+offsetof(Node, key)(NODE:TMP2)
+  |    lwz CARG2, NODE:TMP2->val
+  |     lwz TMP1, 4+offsetof(Node, val)(NODE:TMP2)
+  |  checkstr CARG4; bne >4
+  |   cmpw TMP0, STR:RC; beq >5
+  |4:
+  |  lwz NODE:TMP2, NODE:TMP2->next
+  |  cmplwi NODE:TMP2, 0
+  |  beq ->fff_restv			// Not found, keep default result.
+  |  b <3
+  |5:
+  |  checknil CARG2
+  |  beq ->fff_restv			// Ditto for nil value.
+  |  mr CARG3, CARG2			// Return value of mt.__metatable.
+  |  mr CARG1, TMP1
+  |  b ->fff_restv
+  |
+  |6:
+  |  cmpwi CARG3, LJ_TUDATA; beq <1
+  |  .gpr64 extsw CARG3, CARG3
+  |  subfc TMP0, TISNUM, CARG3
+  |  subfe TMP2, CARG3, CARG3
+  |  orc TMP1, TMP2, TMP0
+  |  addi TMP1, TMP1, ~LJ_TISNUM+1
+  |  slwi TMP1, TMP1, 2
+  |   la TMP2, DISPATCH_GL(gcroot[GCROOT_BASEMT])(DISPATCH)
+  |  lwzx TAB:CARG1, TMP2, TMP1
+  |  b <2
+  |
+  |.ffunc_2 setmetatable
+  |  // Fast path: no mt for table yet and not clearing the mt.
+  |   checktab CARG3; bne ->fff_fallback
+  |  lwz TAB:TMP1, TAB:CARG1->metatable
+  |   checktab CARG4; bne ->fff_fallback
+  |  cmplwi TAB:TMP1, 0
+  |   lbz TMP3, TAB:CARG1->marked
+  |  bne ->fff_fallback
+  |   andix. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
+  |    stw TAB:CARG2, TAB:CARG1->metatable
+  |   beq ->fff_restv
+  |  barrierback TAB:CARG1, TMP3, TMP0
+  |  b ->fff_restv
+  |
+  |.ffunc rawget
+  |  cmplwi NARGS8:RC, 16
+  |   lwz CARG4, 0(BASE)
+  |    lwz TAB:CARG2, 4(BASE)
+  |  blt ->fff_fallback
+  |  checktab CARG4; bne ->fff_fallback
+  |   la CARG3, 8(BASE)
+  |   mr CARG1, L
+  |  bl extern lj_tab_get  // (lua_State *L, GCtab *t, cTValue *key)
+  |  // Returns cTValue *.
+  |.if FPU
+  |  lfd FARG1, 0(CRET1)
+  |.else
+  |  lwz CARG2, 4(CRET1)
+  |  lwz CARG1, 0(CRET1)	// Caveat: CARG1 == CRET1.
+  |.endif
+  |  b ->fff_resn
+  |
+  |//-- Base library: conversions ------------------------------------------
+  |
+  |.ffunc tonumber
+  |  // Only handles the number case inline (without a base argument).
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG1, 0(BASE)
+  |.if FPU
+  |    lfd FARG1, 0(BASE)
+  |.else
+  |    lwz CARG2, 4(BASE)
+  |.endif
+  |  bne ->fff_fallback			// Exactly one argument.
+  |   checknum CARG1; bgt ->fff_fallback
+  |  b ->fff_resn
+  |
+  |.ffunc_1 tostring
+  |  // Only handles the string or number case inline.
+  |  checkstr CARG3
+  |  // A __tostring method in the string base metatable is ignored.
+  |  beq ->fff_restv			// String key?
+  |  // Handle numbers inline, unless a number base metatable is present.
+  |  lwz TMP0, DISPATCH_GL(gcroot[GCROOT_BASEMT_NUM])(DISPATCH)
+  |  checknum CARG3
+  |  cmplwi cr1, TMP0, 0
+  |   stp BASE, L->base			// Add frame since C call can throw.
+  |  crorc 4*cr0+eq, 4*cr0+gt, 4*cr1+eq
+  |   stw PC, SAVE_PC			// Redundant (but a defined value).
+  |  beq ->fff_fallback
+  |  ffgccheck
+  |  mr CARG1, L
+  |  mr CARG2, BASE
+  |.if DUALNUM
+  |  bl extern lj_strfmt_number		// (lua_State *L, cTValue *o)
+  |.else
+  |  bl extern lj_strfmt_num		// (lua_State *L, lua_Number *np)
+  |.endif
+  |  // Returns GCstr *.
+  |  li CARG3, LJ_TSTR
+  |  b ->fff_restv
+  |
+  |//-- Base library: iterators -------------------------------------------
+  |
+  |.ffunc_1 next
+  |   stwx TISNIL, BASE, NARGS8:RC	// Set missing 2nd arg to nil.
+  |  checktab CARG3
+  |   lwz PC, FRAME_PC(BASE)
+  |  bne ->fff_fallback
+  |  la CARG2, 8(BASE)
+  |  la CARG3, -8(BASE)
+  |  bl extern lj_tab_next		// (GCtab *t, cTValue *key, TValue *o)
+  |  // Returns 1=found, 0=end, -1=error.
+  |  cmpwi CRET1, 0
+  |   la RA, -8(BASE)
+  |   li RD, (2+1)*8
+  |  bgt ->fff_res			// Found key/value.
+  |   li CARG3, LJ_TNIL
+  |  beq ->fff_restv			// End of traversal: return nil.
+  |   lwz CFUNC:RB, FRAME_FUNC(BASE)
+  |   li NARGS8:RC, 2*8
+  |  b ->fff_fallback			// Invalid key.
+  |
+  |.ffunc_1 pairs
+  |  checktab CARG3
+  |   lwz PC, FRAME_PC(BASE)
+  |  bne ->fff_fallback
+#if LJ_52
+  |   lwz TAB:TMP2, TAB:CARG1->metatable
+  |.if FPU
+  |  lfd f0, CFUNC:RB->upvalue[0]
+  |.else
+  |  lwz TMP0, CFUNC:RB->upvalue[0].u32.hi
+  |  lwz TMP1, CFUNC:RB->upvalue[0].u32.lo
+  |.endif
+  |   cmplwi TAB:TMP2, 0
+  |  la RA, -8(BASE)
+  |   bne ->fff_fallback
+#else
+  |.if FPU
+  |  lfd f0, CFUNC:RB->upvalue[0]
+  |.else
+  |  lwz TMP0, CFUNC:RB->upvalue[0].u32.hi
+  |  lwz TMP1, CFUNC:RB->upvalue[0].u32.lo
+  |.endif
+  |  la RA, -8(BASE)
+#endif
+  |   stw TISNIL, 8(BASE)
+  |  li RD, (3+1)*8
+  |.if FPU
+  |  stfd f0, 0(RA)
+  |.else
+  |  stw TMP0, 0(RA)
+  |  stw TMP1, 4(RA)
+  |.endif
+  |  b ->fff_res
+  |
+  |.ffunc ipairs_aux
+  |  cmplwi NARGS8:RC, 16
+  |   lwz CARG3, 0(BASE)
+  |    lwz TAB:CARG1, 4(BASE)
+  |   lwz CARG4, 8(BASE)
+  |.if DUALNUM
+  |    lwz TMP2, 12(BASE)
+  |.else
+  |    lfd FARG2, 8(BASE)
+  |.endif
+  |  blt ->fff_fallback
+  |  checktab CARG3
+  |  checknum cr1, CARG4
+  |   lwz PC, FRAME_PC(BASE)
+  |.if DUALNUM
+  |  bne ->fff_fallback
+  |  bne cr1, ->fff_fallback
+  |.else
+  |    lus TMP0, 0x3ff0
+  |    stw ZERO, TMPD_LO
+  |  bne ->fff_fallback
+  |    stw TMP0, TMPD_HI
+  |  bge cr1, ->fff_fallback
+  |    lfd FARG1, TMPD
+  |  toint TMP2, FARG2, f0
+  |.endif
+  |   lwz TMP0, TAB:CARG1->asize
+  |   lwz TMP1, TAB:CARG1->array
+  |.if not DUALNUM
+  |  fadd FARG2, FARG2, FARG1
+  |.endif
+  |  addi TMP2, TMP2, 1
+  |   la RA, -8(BASE)
+  |  cmplw TMP0, TMP2
+  |.if DUALNUM
+  |  stw TISNUM, 0(RA)
+  |   slwi TMP3, TMP2, 3
+  |  stw TMP2, 4(RA)
+  |.else
+  |   slwi TMP3, TMP2, 3
+  |  stfd FARG2, 0(RA)
+  |.endif
+  |  ble >2				// Not in array part?
+  |.if FPU
+  |  lwzx TMP2, TMP1, TMP3
+  |  lfdx f0, TMP1, TMP3
+  |.else
+  |  lwzux TMP2, TMP1, TMP3
+  |  lwz TMP3, 4(TMP1)
+  |.endif
+  |1:
+  |  checknil TMP2
+  |   li RD, (0+1)*8
+  |  beq ->fff_res			// End of iteration, return 0 results.
+  |   li RD, (2+1)*8
+  |.if FPU
+  |  stfd f0, 8(RA)
+  |.else
+  |  stw TMP2, 8(RA)
+  |  stw TMP3, 12(RA)
+  |.endif
+  |  b ->fff_res
+  |2:  // Check for empty hash part first. Otherwise call C function.
+  |  lwz TMP0, TAB:CARG1->hmask
+  |  cmplwi TMP0, 0
+  |   li RD, (0+1)*8
+  |  beq ->fff_res
+  |   mr CARG2, TMP2
+  |  bl extern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |  // Returns cTValue * or NULL.
+  |  cmplwi CRET1, 0
+  |   li RD, (0+1)*8
+  |  beq ->fff_res
+  |  lwz TMP2, 0(CRET1)
+  |.if FPU
+  |  lfd f0, 0(CRET1)
+  |.else
+  |  lwz TMP3, 4(CRET1)
+  |.endif
+  |  b <1
+  |
+  |.ffunc_1 ipairs
+  |  checktab CARG3
+  |   lwz PC, FRAME_PC(BASE)
+  |  bne ->fff_fallback
+#if LJ_52
+  |   lwz TAB:TMP2, TAB:CARG1->metatable
+  |.if FPU
+  |  lfd f0, CFUNC:RB->upvalue[0]
+  |.else
+  |  lwz TMP0, CFUNC:RB->upvalue[0].u32.hi
+  |  lwz TMP1, CFUNC:RB->upvalue[0].u32.lo
+  |.endif
+  |   cmplwi TAB:TMP2, 0
+  |  la RA, -8(BASE)
+  |   bne ->fff_fallback
+#else
+  |.if FPU
+  |  lfd f0, CFUNC:RB->upvalue[0]
+  |.else
+  |  lwz TMP0, CFUNC:RB->upvalue[0].u32.hi
+  |  lwz TMP1, CFUNC:RB->upvalue[0].u32.lo
+  |.endif
+  |  la RA, -8(BASE)
+#endif
+  |.if DUALNUM
+  |  stw TISNUM, 8(BASE)
+  |.else
+  |  stw ZERO, 8(BASE)
+  |.endif
+  |   stw ZERO, 12(BASE)
+  |  li RD, (3+1)*8
+  |.if FPU
+  |  stfd f0, 0(RA)
+  |.else
+  |  stw TMP0, 0(RA)
+  |  stw TMP1, 4(RA)
+  |.endif
+  |  b ->fff_res
+  |
+  |//-- Base library: catch errors ----------------------------------------
+  |
+  |.ffunc pcall
+  |  cmplwi NARGS8:RC, 8
+  |   lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  blt ->fff_fallback
+  |   mr TMP2, BASE
+  |   la BASE, 8(BASE)
+  |  // Remember active hook before pcall.
+  |  rlwinm TMP3, TMP3, 32-HOOK_ACTIVE_SHIFT, 31, 31
+  |   subi NARGS8:RC, NARGS8:RC, 8
+  |  addi PC, TMP3, 8+FRAME_PCALL
+  |  b ->vm_call_dispatch
+  |
+  |.ffunc xpcall
+  |  cmplwi NARGS8:RC, 16
+  |   lwz CARG3, 8(BASE)
+  |.if FPU
+  |    lfd FARG2, 8(BASE)
+  |    lfd FARG1, 0(BASE)
+  |.else
+  |    lwz CARG1, 0(BASE)
+  |    lwz CARG2, 4(BASE)
+  |    lwz CARG4, 12(BASE)
+  |.endif
+  |  blt ->fff_fallback
+  |  lbz TMP1, DISPATCH_GL(hookmask)(DISPATCH)
+  |   mr TMP2, BASE
+  |  checkfunc CARG3; bne ->fff_fallback  // Traceback must be a function.
+  |   la BASE, 16(BASE)
+  |  // Remember active hook before pcall.
+  |  rlwinm TMP1, TMP1, 32-HOOK_ACTIVE_SHIFT, 31, 31
+  |.if FPU
+  |    stfd FARG2, 0(TMP2)		// Swap function and traceback.
+  |    stfd FARG1, 8(TMP2)
+  |.else
+  |    stw CARG3, 0(TMP2)
+  |    stw CARG4, 4(TMP2)
+  |    stw CARG1, 8(TMP2)
+  |    stw CARG2, 12(TMP2)
+  |.endif
+  |  subi NARGS8:RC, NARGS8:RC, 16
+  |  addi PC, TMP1, 16+FRAME_PCALL
+  |  b ->vm_call_dispatch
+  |
+  |//-- Coroutine library --------------------------------------------------
+  |
+  |.macro coroutine_resume_wrap, resume
+  |.if resume
+  |.ffunc_1 coroutine_resume
+  |  cmpwi CARG3, LJ_TTHREAD; bne ->fff_fallback
+  |.else
+  |.ffunc coroutine_wrap_aux
+  |  lwz L:CARG1, CFUNC:RB->upvalue[0].gcr
+  |.endif
+  |  lbz TMP0, L:CARG1->status
+  |   lp TMP1, L:CARG1->cframe
+  |    lp CARG2, L:CARG1->top
+  |  cmplwi cr0, TMP0, LUA_YIELD
+  |    lp TMP2, L:CARG1->base
+  |   cmplwi cr1, TMP1, 0
+  |   lwz TMP0, L:CARG1->maxstack
+  |    cmplw cr7, CARG2, TMP2
+  |   lwz PC, FRAME_PC(BASE)
+  |  crorc 4*cr6+lt, 4*cr0+gt, 4*cr1+eq		// st>LUA_YIELD || cframe!=0
+  |   add TMP2, CARG2, NARGS8:RC
+  |  crandc 4*cr6+gt, 4*cr7+eq, 4*cr0+eq	// base==top && st!=LUA_YIELD
+  |   cmplw cr1, TMP2, TMP0
+  |  cror 4*cr6+lt, 4*cr6+lt, 4*cr6+gt
+  |   stw PC, SAVE_PC
+  |  cror 4*cr6+lt, 4*cr6+lt, 4*cr1+gt		// cond1 || cond2 || stackov
+  |   stp BASE, L->base
+  |  blt cr6, ->fff_fallback
+  |1:
+  |.if resume
+  |  addi BASE, BASE, 8			// Keep resumed thread in stack for GC.
+  |  subi NARGS8:RC, NARGS8:RC, 8
+  |  subi TMP2, TMP2, 8
+  |.endif
+  |  stp TMP2, L:CARG1->top
+  |  li TMP1, 0
+  |  stp BASE, L->top
+  |2:  // Move args to coroutine.
+  |  cmpw TMP1, NARGS8:RC
+  |.if FPU
+  |   lfdx f0, BASE, TMP1
+  |.else
+  |   add CARG3, BASE, TMP1
+  |   lwz TMP2, 0(CARG3)
+  |   lwz TMP3, 4(CARG3)
+  |.endif
+  |  beq >3
+  |.if FPU
+  |   stfdx f0, CARG2, TMP1
+  |.else
+  |   add CARG3, CARG2, TMP1
+  |   stw TMP2, 0(CARG3)
+  |   stw TMP3, 4(CARG3)
+  |.endif
+  |  addi TMP1, TMP1, 8
+  |  b <2
+  |3:
+  |  li CARG3, 0
+  |   mr L:SAVE0, L:CARG1
+  |  li CARG4, 0
+  |  bl ->vm_resume			// (lua_State *L, TValue *base, 0, 0)
+  |  // Returns thread status.
+  |4:
+  |  lp TMP2, L:SAVE0->base
+  |   cmplwi CRET1, LUA_YIELD
+  |  lp TMP3, L:SAVE0->top
+  |    li_vmstate INTERP
+  |  lp BASE, L->base
+  |    stw L, DISPATCH_GL(cur_L)(DISPATCH)
+  |    st_vmstate
+  |   bgt >8
+  |  sub RD, TMP3, TMP2
+  |   lwz TMP0, L->maxstack
+  |  cmplwi RD, 0
+  |   add TMP1, BASE, RD
+  |  beq >6				// No results?
+  |  cmplw TMP1, TMP0
+  |   li TMP1, 0
+  |  bgt >9				// Need to grow stack?
+  |
+  |  subi TMP3, RD, 8
+  |   stp TMP2, L:SAVE0->top		// Clear coroutine stack.
+  |5:  // Move results from coroutine.
+  |  cmplw TMP1, TMP3
+  |.if FPU
+  |   lfdx f0, TMP2, TMP1
+  |   stfdx f0, BASE, TMP1
+  |.else
+  |   add CARG3, TMP2, TMP1
+  |   lwz CARG1, 0(CARG3)
+  |   lwz CARG2, 4(CARG3)
+  |   add CARG3, BASE, TMP1
+  |   stw CARG1, 0(CARG3)
+  |   stw CARG2, 4(CARG3)
+  |.endif
+  |    addi TMP1, TMP1, 8
+  |  bne <5
+  |6:
+  |  andix. TMP0, PC, FRAME_TYPE
+  |.if resume
+  |  li TMP1, LJ_TTRUE
+  |   la RA, -8(BASE)
+  |  stw TMP1, -8(BASE)			// Prepend true to results.
+  |  addi RD, RD, 16
+  |.else
+  |  mr RA, BASE
+  |  addi RD, RD, 8
+  |.endif
+  |7:
+  |    stw PC, SAVE_PC
+  |   mr MULTRES, RD
+  |  beq ->BC_RET_Z
+  |  b ->vm_return
+  |
+  |8:  // Coroutine returned with error (at co->top-1).
+  |.if resume
+  |  andix. TMP0, PC, FRAME_TYPE
+  |  la TMP3, -8(TMP3)
+  |   li TMP1, LJ_TFALSE
+  |.if FPU
+  |  lfd f0, 0(TMP3)
+  |.else
+  |  lwz CARG1, 0(TMP3)
+  |  lwz CARG2, 4(TMP3)
+  |.endif
+  |   stp TMP3, L:SAVE0->top		// Remove error from coroutine stack.
+  |    li RD, (2+1)*8
+  |   stw TMP1, -8(BASE)		// Prepend false to results.
+  |    la RA, -8(BASE)
+  |.if FPU
+  |  stfd f0, 0(BASE)			// Copy error message.
+  |.else
+  |  stw CARG1, 0(BASE)			// Copy error message.
+  |  stw CARG2, 4(BASE)
+  |.endif
+  |  b <7
+  |.else
+  |  mr CARG1, L
+  |  mr CARG2, L:SAVE0
+  |  bl extern lj_ffh_coroutine_wrap_err  // (lua_State *L, lua_State *co)
+  |.endif
+  |
+  |9:  // Handle stack expansion on return from yield.
+  |  mr CARG1, L
+  |  srwi CARG2, RD, 3
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  li CRET1, 0
+  |  b <4
+  |.endmacro
+  |
+  |  coroutine_resume_wrap 1		// coroutine.resume
+  |  coroutine_resume_wrap 0		// coroutine.wrap
+  |
+  |.ffunc coroutine_yield
+  |  lp TMP0, L->cframe
+  |   add TMP1, BASE, NARGS8:RC
+  |   stp BASE, L->base
+  |  andix. TMP0, TMP0, CFRAME_RESUME
+  |   stp TMP1, L->top
+  |    li CRET1, LUA_YIELD
+  |  beq ->fff_fallback
+  |   stp ZERO, L->cframe
+  |    stb CRET1, L->status
+  |  b ->vm_leave_unw
+  |
+  |//-- Math library -------------------------------------------------------
+  |
+  |.ffunc_1 math_abs
+  |  checknum CARG3
+  |.if DUALNUM
+  |  bne >2
+  |  srawi TMP1, CARG1, 31
+  |  xor TMP2, TMP1, CARG1
+  |.if GPR64
+  |  lus TMP0, 0x8000
+  |  sub CARG1, TMP2, TMP1
+  |  cmplw CARG1, TMP0
+  |  beq >1
+  |.else
+  |  sub. CARG1, TMP2, TMP1
+  |  blt >1
+  |.endif
+  |->fff_resi:
+  |  lwz PC, FRAME_PC(BASE)
+  |  la RA, -8(BASE)
+  |  stw TISNUM, -8(BASE)
+  |  stw CRET1, -4(BASE)
+  |  b ->fff_res1
+  |1:
+  |  lus CARG3, 0x41e0	// 2^31.
+  |  li CARG1, 0
+  |  b ->fff_restv
+  |2:
+  |.endif
+  |  bge ->fff_fallback
+  |  rlwinm CARG3, CARG3, 0, 1, 31
+  |  // Fallthrough.
+  |
+  |->fff_restv:
+  |  // CARG3/CARG1 = TValue result.
+  |  lwz PC, FRAME_PC(BASE)
+  |   stw CARG3, -8(BASE)
+  |  la RA, -8(BASE)
+  |   stw CARG1, -4(BASE)
+  |->fff_res1:
+  |  // RA = results, PC = return.
+  |  li RD, (1+1)*8
+  |->fff_res:
+  |  // RA = results, RD = (nresults+1)*8, PC = return.
+  |  andix. TMP0, PC, FRAME_TYPE
+  |   mr MULTRES, RD
+  |  bney ->vm_return
+  |  lwz INS, -4(PC)
+  |  decode_RB8 RB, INS
+  |5:
+  |  cmplw RB, RD			// More results expected?
+  |   decode_RA8 TMP0, INS
+  |  bgt >6
+  |  ins_next1
+  |  // Adjust BASE. KBASE is assumed to be set for the calling frame.
+  |   sub BASE, RA, TMP0
+  |  ins_next2
+  |
+  |6:  // Fill up results with nil.
+  |  subi TMP1, RD, 8
+  |   addi RD, RD, 8
+  |  stwx TISNIL, RA, TMP1
+  |  b <5
+  |
+  |.macro math_extern, func
+  |  .ffunc_n math_ .. func
+  |  blex func
+  |  b ->fff_resn
+  |.endmacro
+  |
+  |.macro math_extern2, func
+  |  .ffunc_nn math_ .. func
+  |  blex func
+  |  b ->fff_resn
+  |.endmacro
+  |
+  |.macro math_round, func
+  |  .ffunc_1 math_ .. func
+  |   checknum CARG3; beqy ->fff_restv
+  |  rlwinm TMP2, CARG3, 12, 21, 31
+  |   bge ->fff_fallback
+  |  addic. TMP2, TMP2, -1023		// exp = exponent(x) - 1023
+  |  cmplwi cr1, TMP2, 31		// 0 <= exp < 31?
+  |   subfic TMP0, TMP2, 31
+  |  blt >3
+  |  slwi TMP1, CARG3, 11
+  |   srwi TMP3, CARG1, 21
+  |  oris TMP1, TMP1, 0x8000
+  |   addi TMP2, TMP2, 1
+  |  or TMP1, TMP1, TMP3
+  |   slwi CARG2, CARG1, 11
+  |  bge cr1, >4
+  |   slw TMP3, TMP1, TMP2
+  |  srw RD, TMP1, TMP0
+  |   or TMP3, TMP3, CARG2
+  |  srawi TMP2, CARG3, 31
+  |.if "func" == "floor"
+  |  and TMP1, TMP3, TMP2
+  |  addic TMP0, TMP1, -1
+  |  subfe TMP1, TMP0, TMP1
+  |  add CARG1, RD, TMP1
+  |  xor CARG1, CARG1, TMP2
+  |  sub CARG1, CARG1, TMP2
+  |  b ->fff_resi
+  |.else
+  |  andc TMP1, TMP3, TMP2
+  |  addic TMP0, TMP1, -1
+  |  subfe TMP1, TMP0, TMP1
+  |  add CARG1, RD, TMP1
+  |  cmpw CARG1, RD
+  |  xor CARG1, CARG1, TMP2
+  |  sub CARG1, CARG1, TMP2
+  |  bge ->fff_resi
+  |  // Overflow to 2^31.
+  |  lus CARG3, 0x41e0			// 2^31.
+  |  li CARG1, 0
+  |  b ->fff_restv
+  |.endif
+  |3:  // |x| < 1
+  |  slwi TMP2, CARG3, 1
+  |   srawi TMP1, CARG3, 31
+  |  or TMP2, CARG1, TMP2		// ztest = (hi+hi) | lo
+  |.if "func" == "floor"
+  |  and TMP1, TMP2, TMP1		// (ztest & sign) == 0 ? 0 : -1
+  |  subfic TMP2, TMP1, 0
+  |  subfe CARG1, CARG1, CARG1
+  |.else
+  |  andc TMP1, TMP2, TMP1		// (ztest & ~sign) == 0 ? 0 : 1
+  |  addic TMP2, TMP1, -1
+  |  subfe CARG1, TMP2, TMP1
+  |.endif
+  |  b ->fff_resi
+  |4:  // exp >= 31. Check for -(2^31).
+  |  xoris TMP1, TMP1, 0x8000
+  |  srawi TMP2, CARG3, 31
+  |.if "func" == "floor"
+  |  or TMP1, TMP1, CARG2
+  |.endif
+  |.if PPE
+  |  orc TMP1, TMP1, TMP2
+  |  cmpwi TMP1, 0
+  |.else
+  |  orc. TMP1, TMP1, TMP2
+  |.endif
+  |  crand 4*cr0+eq, 4*cr0+eq, 4*cr1+eq
+  |  lus CARG1, 0x8000			// -(2^31).
+  |  beqy ->fff_resi
+  |5:
+  |.if FPU
+  |  lfd FARG1, 0(BASE)
+  |.else
+  |  lwz CARG1, 0(BASE)
+  |  lwz CARG2, 4(BASE)
+  |.endif
+  |  blex func
+  |  b ->fff_resn
+  |.endmacro
+  |
+  |.if DUALNUM
+  |  math_round floor
+  |  math_round ceil
+  |.else
+  |  // NYI: use internal implementation.
+  |  math_extern floor
+  |  math_extern ceil
+  |.endif
+  |
+  |.if SQRT
+  |.ffunc_n math_sqrt
+  |  fsqrt FARG1, FARG1
+  |  b ->fff_resn
+  |.else
+  |  math_extern sqrt
+  |.endif
+  |
+  |.ffunc math_log
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG1, 0(BASE)
+  |  bne ->fff_fallback			// Need exactly 1 argument.
+  |  checknum CARG1; bge ->fff_fallback
+  |.if FPU
+  |  lfd FARG1, 0(BASE)
+  |.else
+  |  lwz CARG2, 4(BASE)
+  |.endif
+  |  blex log
+  |  b ->fff_resn
+  |
+  |  math_extern log10
+  |  math_extern exp
+  |  math_extern sin
+  |  math_extern cos
+  |  math_extern tan
+  |  math_extern asin
+  |  math_extern acos
+  |  math_extern atan
+  |  math_extern sinh
+  |  math_extern cosh
+  |  math_extern tanh
+  |  math_extern2 pow
+  |  math_extern2 atan2
+  |  math_extern2 fmod
+  |
+  |.if DUALNUM
+  |.ffunc math_ldexp
+  |  cmplwi NARGS8:RC, 16
+  |   lwz TMP0, 0(BASE)
+  |.if FPU
+  |    lfd FARG1, 0(BASE)
+  |.else
+  |    lwz CARG1, 0(BASE)
+  |    lwz CARG2, 4(BASE)
+  |.endif
+  |   lwz TMP1, 8(BASE)
+  |.if GPR64
+  |    lwz CARG2, 12(BASE)
+  |.elif FPU
+  |    lwz CARG1, 12(BASE)
+  |.else
+  |    lwz CARG3, 12(BASE)
+  |.endif
+  |  blt ->fff_fallback
+  |  checknum TMP0; bge ->fff_fallback
+  |  checknum TMP1; bne ->fff_fallback
+  |.else
+  |.ffunc_nn math_ldexp
+  |.if GPR64
+  |  toint CARG2, FARG2
+  |.else
+  |  toint CARG1, FARG2
+  |.endif
+  |.endif
+  |  blex ldexp
+  |  b ->fff_resn
+  |
+  |.ffunc_n math_frexp
+  |.if GPR64
+  |  la CARG2, DISPATCH_GL(tmptv)(DISPATCH)
+  |.elif FPU
+  |  la CARG1, DISPATCH_GL(tmptv)(DISPATCH)
+  |.else
+  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+  |.endif
+  |   lwz PC, FRAME_PC(BASE)
+  |  blex frexp
+  |   lwz TMP1, DISPATCH_GL(tmptv)(DISPATCH)
+  |   la RA, -8(BASE)
+  |.if not DUALNUM
+  |   tonum_i FARG2, TMP1
+  |.endif
+  |.if FPU
+  |  stfd FARG1, 0(RA)
+  |.else
+  |  stw CRET1, 0(RA)
+  |  stw CRET2, 4(RA)
+  |.endif
+  |  li RD, (2+1)*8
+  |.if DUALNUM
+  |   stw TISNUM, 8(RA)
+  |   stw TMP1, 12(RA)
+  |.else
+  |   stfd FARG2, 8(RA)
+  |.endif
+  |  b ->fff_res
+  |
+  |.ffunc_n math_modf
+  |.if GPR64
+  |  la CARG2, -8(BASE)
+  |.elif FPU
+  |  la CARG1, -8(BASE)
+  |.else
+  |  la CARG3, -8(BASE)
+  |.endif
+  |   lwz PC, FRAME_PC(BASE)
+  |  blex modf
+  |   la RA, -8(BASE)
+  |.if FPU
+  |  stfd FARG1, 0(BASE)
+  |.else
+  |  stw CRET1, 0(BASE)
+  |  stw CRET2, 4(BASE)
+  |.endif
+  |  li RD, (2+1)*8
+  |  b ->fff_res
+  |
+  |.macro math_minmax, name, ismax
+  |.if DUALNUM
+  |  .ffunc_1 name
+  |  checknum CARG3
+  |   addi SAVE0, BASE, 8
+  |   add SAVE1, BASE, NARGS8:RC
+  |  bne >4
+  |1:  // Handle integers.
+  |  lwz CARG4, 0(SAVE0)
+  |   cmplw cr1, SAVE0, SAVE1
+  |  lwz CARG2, 4(SAVE0)
+  |   bge cr1, ->fff_resi
+  |  checknum CARG4
+  |   xoris TMP0, CARG1, 0x8000
+  |   xoris TMP3, CARG2, 0x8000
+  |  bne >3
+  |  subfc TMP3, TMP3, TMP0
+  |  subfe TMP0, TMP0, TMP0
+  |.if ismax
+  |  andc TMP3, TMP3, TMP0
+  |.else
+  |  and TMP3, TMP3, TMP0
+  |.endif
+  |  add CARG1, TMP3, CARG2
+  |.if GPR64
+  |  rldicl CARG1, CARG1, 0, 32
+  |.endif
+  |   addi SAVE0, SAVE0, 8
+  |  b <1
+  |3:
+  |  bge ->fff_fallback
+  |  // Convert intermediate result to number and continue below.
+  |.if FPU
+  |  tonum_i FARG1, CARG1
+  |  lfd FARG2, 0(SAVE0)
+  |.else
+  |  mr CARG2, CARG1
+  |  bl ->vm_sfi2d_1
+  |  lwz CARG3, 0(SAVE0)
+  |  lwz CARG4, 4(SAVE0)
+  |.endif
+  |  b >6
+  |4:
+  |.if FPU
+  |   lfd FARG1, 0(BASE)
+  |.else
+  |   lwz CARG1, 0(BASE)
+  |   lwz CARG2, 4(BASE)
+  |.endif
+  |  bge ->fff_fallback
+  |5:  // Handle numbers.
+  |  lwz CARG3, 0(SAVE0)
+  |   cmplw cr1, SAVE0, SAVE1
+  |.if FPU
+  |  lfd FARG2, 0(SAVE0)
+  |.else
+  |  lwz CARG4, 4(SAVE0)
+  |.endif
+  |   bge cr1, ->fff_resn
+  |  checknum CARG3; bge >7
+  |6:
+  |   addi SAVE0, SAVE0, 8
+  |.if FPU
+  |.if ismax
+  |  fsub f0, FARG1, FARG2
+  |.else
+  |  fsub f0, FARG2, FARG1
+  |.endif
+  |  fsel FARG1, f0, FARG1, FARG2
+  |.else
+  |  stw CARG1, SFSAVE_1
+  |  stw CARG2, SFSAVE_2
+  |  stw CARG3, SFSAVE_3
+  |  stw CARG4, SFSAVE_4
+  |  blex __ledf2
+  |  cmpwi CRET1, 0
+  |.if ismax
+  |  blt >8
+  |.else
+  |  bge >8
+  |.endif
+  |  lwz CARG1, SFSAVE_1
+  |  lwz CARG2, SFSAVE_2
+  |  b <5
+  |8:
+  |  lwz CARG1, SFSAVE_3
+  |  lwz CARG2, SFSAVE_4
+  |.endif
+  |  b <5
+  |7:  // Convert integer to number and continue above.
+  |   lwz CARG3, 4(SAVE0)
+  |  bne ->fff_fallback
+  |.if FPU
+  |  tonum_i FARG2, CARG3
+  |.else
+  |  bl ->vm_sfi2d_2
+  |.endif
+  |  b <6
+  |.else
+  |  .ffunc_n name
+  |  li TMP1, 8
+  |1:
+  |   lwzx CARG2, BASE, TMP1
+  |   lfdx FARG2, BASE, TMP1
+  |  cmplw cr1, TMP1, NARGS8:RC
+  |   checknum CARG2
+  |  bge cr1, ->fff_resn
+  |   bge ->fff_fallback
+  |.if ismax
+  |  fsub f0, FARG1, FARG2
+  |.else
+  |  fsub f0, FARG2, FARG1
+  |.endif
+  |   addi TMP1, TMP1, 8
+  |  fsel FARG1, f0, FARG1, FARG2
+  |  b <1
+  |.endif
+  |.endmacro
+  |
+  |  math_minmax math_min, 0
+  |  math_minmax math_max, 1
+  |
+  |//-- String library -----------------------------------------------------
+  |
+  |.ffunc string_byte			// Only handle the 1-arg case here.
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG3, 0(BASE)
+  |    lwz STR:CARG1, 4(BASE)
+  |  bne ->fff_fallback			// Need exactly 1 argument.
+  |   checkstr CARG3
+  |   bne ->fff_fallback
+  |  lwz TMP0, STR:CARG1->len
+  |.if DUALNUM
+  |   lbz CARG1, STR:CARG1[1]		// Access is always ok (NUL at end).
+  |   li RD, (0+1)*8
+  |   lwz PC, FRAME_PC(BASE)
+  |  cmplwi TMP0, 0
+  |   la RA, -8(BASE)
+  |  beqy ->fff_res
+  |  b ->fff_resi
+  |.else
+  |   lbz TMP1, STR:CARG1[1]		// Access is always ok (NUL at end).
+  |  addic TMP3, TMP0, -1		// RD = ((str->len != 0)+1)*8
+  |  subfe RD, TMP3, TMP0
+  |   stw TMP1, TONUM_LO		// Inlined tonum_u f0, TMP1.
+  |  addi RD, RD, 1
+  |   lfd f0, TONUM_D
+  |  la RA, -8(BASE)
+  |  lwz PC, FRAME_PC(BASE)
+  |   fsub f0, f0, TOBIT
+  |  slwi RD, RD, 3
+  |   stfd f0, 0(RA)
+  |  b ->fff_res
+  |.endif
+  |
+  |.ffunc string_char			// Only handle the 1-arg case here.
+  |  ffgccheck
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG3, 0(BASE)
+  |.if DUALNUM
+  |    lwz TMP0, 4(BASE)
+  |  bne ->fff_fallback			// Exactly 1 argument.
+  |  checknum CARG3; bne ->fff_fallback
+  |   la CARG2, 7(BASE)
+  |.else
+  |    lfd FARG1, 0(BASE)
+  |  bne ->fff_fallback			// Exactly 1 argument.
+  |  checknum CARG3; bge ->fff_fallback
+  |  toint TMP0, FARG1
+  |   la CARG2, TMPD_BLO
+  |.endif
+  |   li CARG3, 1
+  |  cmplwi TMP0, 255; bgt ->fff_fallback
+  |->fff_newstr:
+  |  mr CARG1, L
+  |  stp BASE, L->base
+  |  stw PC, SAVE_PC
+  |  bl extern lj_str_new		// (lua_State *L, char *str, size_t l)
+  |->fff_resstr:
+  |  // Returns GCstr *.
+  |  lp BASE, L->base
+  |  li CARG3, LJ_TSTR
+  |  b ->fff_restv
+  |
+  |.ffunc string_sub
+  |  ffgccheck
+  |  cmplwi NARGS8:RC, 16
+  |   lwz CARG3, 16(BASE)
+  |.if not DUALNUM
+  |    lfd f0, 16(BASE)
+  |.endif
+  |   lwz TMP0, 0(BASE)
+  |    lwz STR:CARG1, 4(BASE)
+  |  blt ->fff_fallback
+  |   lwz CARG2, 8(BASE)
+  |.if DUALNUM
+  |    lwz TMP1, 12(BASE)
+  |.else
+  |    lfd f1, 8(BASE)
+  |.endif
+  |   li TMP2, -1
+  |  beq >1
+  |.if DUALNUM
+  |  checknum CARG3
+  |   lwz TMP2, 20(BASE)
+  |  bne ->fff_fallback
+  |1:
+  |  checknum CARG2; bne ->fff_fallback
+  |.else
+  |  checknum CARG3; bge ->fff_fallback
+  |  toint TMP2, f0
+  |1:
+  |  checknum CARG2; bge ->fff_fallback
+  |.endif
+  |  checkstr TMP0; bne ->fff_fallback
+  |.if not DUALNUM
+  |   toint TMP1, f1
+  |.endif
+  |   lwz TMP0, STR:CARG1->len
+  |  cmplw TMP0, TMP2			// len < end? (unsigned compare)
+  |   addi TMP3, TMP2, 1
+  |  blt >5
+  |2:
+  |  cmpwi TMP1, 0			// start <= 0?
+  |   add TMP3, TMP1, TMP0
+  |  ble >7
+  |3:
+  |  sub CARG3, TMP2, TMP1
+  |    addi CARG2, STR:CARG1, #STR-1
+  |  srawi TMP0, CARG3, 31
+  |   addi CARG3, CARG3, 1
+  |    add CARG2, CARG2, TMP1
+  |  andc CARG3, CARG3, TMP0
+  |.if GPR64
+  |  rldicl CARG2, CARG2, 0, 32
+  |  rldicl CARG3, CARG3, 0, 32
+  |.endif
+  |  b ->fff_newstr
+  |
+  |5:  // Negative end or overflow.
+  |  cmpw TMP0, TMP2			// len >= end? (signed compare)
+  |   add TMP2, TMP0, TMP3		// Negative end: end = end+len+1.
+  |  bge <2
+  |   mr TMP2, TMP0			// Overflow: end = len.
+  |  b <2
+  |
+  |7:  // Negative start or underflow.
+  |  .gpr64 extsw TMP1, TMP1
+  |  addic CARG3, TMP1, -1
+  |  subfe CARG3, CARG3, CARG3
+  |   srawi CARG2, TMP3, 31		// Note: modifies carry.
+  |  andc TMP3, TMP3, CARG3
+  |   andc TMP1, TMP3, CARG2
+  |  addi TMP1, TMP1, 1			// start = 1 + (start ? start+len : 0)
+  |  b <3
+  |
+  |.macro ffstring_op, name
+  |  .ffunc string_ .. name
+  |  ffgccheck
+  |  cmplwi NARGS8:RC, 8
+  |   lwz CARG3, 0(BASE)
+  |    lwz STR:CARG2, 4(BASE)
+  |  blt ->fff_fallback
+  |  checkstr CARG3
+  |   la SBUF:CARG1, DISPATCH_GL(tmpbuf)(DISPATCH)
+  |  bne ->fff_fallback
+  |   lwz TMP0, SBUF:CARG1->b
+  |  stw L, SBUF:CARG1->L
+  |  stp BASE, L->base
+  |  stw PC, SAVE_PC
+  |   stw TMP0, SBUF:CARG1->w
+  |  bl extern lj_buf_putstr_ .. name
+  |  bl extern lj_buf_tostr
+  |  b ->fff_resstr
+  |.endmacro
+  |
+  |ffstring_op reverse
+  |ffstring_op lower
+  |ffstring_op upper
+  |
+  |//-- Bit library --------------------------------------------------------
+  |
+  |.macro .ffunc_bit, name
+  |.if DUALNUM
+  |  .ffunc_1 bit_..name
+  |  checknum CARG3; bnel ->fff_tobit_fb
+  |.else
+  |  .ffunc_n bit_..name
+  |  fadd FARG1, FARG1, TOBIT
+  |  stfd FARG1, TMPD
+  |  lwz CARG1, TMPD_LO
+  |.endif
+  |.endmacro
+  |
+  |.macro .ffunc_bit_op, name, ins
+  |  .ffunc_bit name
+  |  addi SAVE0, BASE, 8
+  |  add SAVE1, BASE, NARGS8:RC
+  |1:
+  |  lwz CARG4, 0(SAVE0)
+  |   cmplw cr1, SAVE0, SAVE1
+  |.if DUALNUM
+  |  lwz CARG2, 4(SAVE0)
+  |.else
+  |  lfd FARG1, 0(SAVE0)
+  |.endif
+  |   bgey cr1, ->fff_resi
+  |  checknum CARG4
+  |.if DUALNUM
+  |.if FPU
+  |  bnel ->fff_bitop_fb
+  |.else
+  |  beq >3
+  |  stw CARG1, SFSAVE_1
+  |  bl ->fff_bitop_fb
+  |  mr CARG2, CARG1
+  |  lwz CARG1, SFSAVE_1
+  |3:
+  |.endif
+  |.else
+  |  fadd FARG1, FARG1, TOBIT
+  |  bge ->fff_fallback
+  |  stfd FARG1, TMPD
+  |  lwz CARG2, TMPD_LO
+  |.endif
+  |  ins CARG1, CARG1, CARG2
+  |   addi SAVE0, SAVE0, 8
+  |  b <1
+  |.endmacro
+  |
+  |.ffunc_bit_op band, and
+  |.ffunc_bit_op bor, or
+  |.ffunc_bit_op bxor, xor
+  |
+  |.ffunc_bit bswap
+  |  rotlwi TMP0, CARG1, 8
+  |  rlwimi TMP0, CARG1, 24, 0, 7
+  |  rlwimi TMP0, CARG1, 24, 16, 23
+  |  mr CRET1, TMP0
+  |  b ->fff_resi
+  |
+  |.ffunc_bit bnot
+  |  not CRET1, CARG1
+  |  b ->fff_resi
+  |
+  |.macro .ffunc_bit_sh, name, ins, shmod
+  |.if DUALNUM
+  |  .ffunc_2 bit_..name
+  |.if FPU
+  |  checknum CARG3; bnel ->fff_tobit_fb
+  |.else
+  |  checknum CARG3; beq >1
+  |  bl ->fff_tobit_fb
+  |  lwz CARG2, 12(BASE)	// Conversion polluted CARG2.
+  |1:
+  |.endif
+  |  // Note: no inline conversion from number for 2nd argument!
+  |  checknum CARG4; bne ->fff_fallback
+  |.else
+  |  .ffunc_nn bit_..name
+  |  fadd FARG1, FARG1, TOBIT
+  |  fadd FARG2, FARG2, TOBIT
+  |  stfd FARG1, TMPD
+  |  lwz CARG1, TMPD_LO
+  |  stfd FARG2, TMPD
+  |  lwz CARG2, TMPD_LO
+  |.endif
+  |.if shmod == 1
+  |  rlwinm CARG2, CARG2, 0, 27, 31
+  |.elif shmod == 2
+  |  neg CARG2, CARG2
+  |.endif
+  |  ins CRET1, CARG1, CARG2
+  |  b ->fff_resi
+  |.endmacro
+  |
+  |.ffunc_bit_sh lshift, slw, 1
+  |.ffunc_bit_sh rshift, srw, 1
+  |.ffunc_bit_sh arshift, sraw, 1
+  |.ffunc_bit_sh rol, rotlw, 0
+  |.ffunc_bit_sh ror, rotlw, 2
+  |
+  |.ffunc_bit tobit
+  |.if DUALNUM
+  |  b ->fff_resi
+  |.else
+  |->fff_resi:
+  |  tonum_i FARG1, CRET1
+  |.endif
+  |->fff_resn:
+  |  lwz PC, FRAME_PC(BASE)
+  |  la RA, -8(BASE)
+  |.if FPU
+  |  stfd FARG1, -8(BASE)
+  |.else
+  |  stw CARG1, -8(BASE)
+  |  stw CARG2, -4(BASE)
+  |.endif
+  |  b ->fff_res1
+  |
+  |// Fallback FP number to bit conversion.
+  |->fff_tobit_fb:
+  |.if DUALNUM
+  |.if FPU
+  |  lfd FARG1, 0(BASE)
+  |  bgt ->fff_fallback
+  |  fadd FARG1, FARG1, TOBIT
+  |  stfd FARG1, TMPD
+  |  lwz CARG1, TMPD_LO
+  |  blr
+  |.else
+  |  bgt ->fff_fallback
+  |  mr CARG2, CARG1
+  |  mr CARG1, CARG3
+  |// Modifies: CARG1, CARG2, TMP0, TMP1, TMP2.
+  |->vm_tobit:
+  |  slwi TMP2, CARG1, 1
+  |  addis TMP2, TMP2, 0x0020
+  |  cmpwi TMP2, 0
+  |  bge >2
+  |   li TMP1, 0x3e0
+  |  srawi TMP2, TMP2, 21
+  |   not TMP1, TMP1
+  |  sub. TMP2, TMP1, TMP2
+  |    cmpwi cr7, CARG1, 0
+  |  blt >1
+  |   slwi TMP1, CARG1, 11
+  |    srwi TMP0, CARG2, 21
+  |   oris TMP1, TMP1, 0x8000
+  |   or TMP1, TMP1, TMP0
+  |   srw CARG1, TMP1, TMP2
+  |  bclr 4, 28			// Return if cr7[lt] == 0, no hint.
+  |   neg CARG1, CARG1
+  |  blr
+  |1:
+  |  addi TMP2, TMP2, 21
+  |  srw TMP1, CARG2, TMP2
+  |   slwi CARG2, CARG1, 12
+  |  subfic TMP2, TMP2, 20
+  |   slw TMP0, CARG2, TMP2
+  |   or CARG1, TMP1, TMP0
+  |  bclr 4, 28			// Return if cr7[lt] == 0, no hint.
+  |   neg CARG1, CARG1
+  |  blr
+  |2:
+  |  li CARG1, 0
+  |  blr
+  |.endif
+  |.endif
+  |->fff_bitop_fb:
+  |.if DUALNUM
+  |.if FPU
+  |  lfd FARG1, 0(SAVE0)
+  |  bgt ->fff_fallback
+  |  fadd FARG1, FARG1, TOBIT
+  |  stfd FARG1, TMPD
+  |  lwz CARG2, TMPD_LO
+  |  blr
+  |.else
+  |  bgt ->fff_fallback
+  |  mr CARG1, CARG4
+  |  b ->vm_tobit
+  |.endif
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->fff_fallback:			// Call fast function fallback handler.
+  |  // BASE = new base, RB = CFUNC, RC = nargs*8
+  |  lp TMP3, CFUNC:RB->f
+  |    add TMP1, BASE, NARGS8:RC
+  |   lwz PC, FRAME_PC(BASE)		// Fallback may overwrite PC.
+  |    addi TMP0, TMP1, 8*LUA_MINSTACK
+  |     lwz TMP2, L->maxstack
+  |   stw PC, SAVE_PC			// Redundant (but a defined value).
+  |  .toc lp TMP3, 0(TMP3)
+  |  cmplw TMP0, TMP2
+  |     stp BASE, L->base
+  |    stp TMP1, L->top
+  |   mr CARG1, L
+  |  bgt >5				// Need to grow stack.
+  |  mtctr TMP3
+  |  bctrl				// (lua_State *L)
+  |  // Either throws an error, or recovers and returns -1, 0 or nresults+1.
+  |  lp BASE, L->base
+  |  cmpwi CRET1, 0
+  |   slwi RD, CRET1, 3
+  |   la RA, -8(BASE)
+  |  bgt ->fff_res			// Returned nresults+1?
+  |1:  // Returned 0 or -1: retry fast path.
+  |  lp TMP0, L->top
+  |   lwz LFUNC:RB, FRAME_FUNC(BASE)
+  |  sub NARGS8:RC, TMP0, BASE
+  |  bne ->vm_call_tail			// Returned -1?
+  |  ins_callt				// Returned 0: retry fast path.
+  |
+  |// Reconstruct previous base for vmeta_call during tailcall.
+  |->vm_call_tail:
+  |  andix. TMP0, PC, FRAME_TYPE
+  |   rlwinm TMP1, PC, 0, 0, 28
+  |  bne >3
+  |  lwz INS, -4(PC)
+  |  decode_RA8 TMP1, INS
+  |  addi TMP1, TMP1, 8
+  |3:
+  |  sub TMP2, BASE, TMP1
+  |  b ->vm_call_dispatch		// Resolve again for tailcall.
+  |
+  |5:  // Grow stack for fallback handler.
+  |  li CARG2, LUA_MINSTACK
+  |  bl extern lj_state_growstack	// (lua_State *L, int n)
+  |  lp BASE, L->base
+  |  cmpw TMP0, TMP0			// Set 4*cr0+eq to force retry.
+  |  b <1
+  |
+  |->fff_gcstep:			// Call GC step function.
+  |  // BASE = new base, RC = nargs*8
+  |  mflr SAVE0
+  |   stp BASE, L->base
+  |  add TMP0, BASE, NARGS8:RC
+  |   stw PC, SAVE_PC			// Redundant (but a defined value).
+  |  stp TMP0, L->top
+  |  mr CARG1, L
+  |  bl extern lj_gc_step		// (lua_State *L)
+  |   lp BASE, L->base
+  |  mtlr SAVE0
+  |    lp TMP0, L->top
+  |   sub NARGS8:RC, TMP0, BASE
+  |   lwz CFUNC:RB, FRAME_FUNC(BASE)
+  |  blr
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Special dispatch targets -------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_record:				// Dispatch target for recording phase.
+  |.if JIT
+  |  lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  andix. TMP0, TMP3, HOOK_VMEVENT	// No recording while in vmevent.
+  |  bne >5
+  |  // Decrement the hookcount for consistency, but always do the call.
+  |   lwz TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  andix. TMP0, TMP3, HOOK_ACTIVE
+  |  bne >1
+  |   subi TMP2, TMP2, 1
+  |  andi. TMP0, TMP3, LUA_MASKLINE|LUA_MASKCOUNT
+  |  beqy >1
+  |   stw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  b >1
+  |.endif
+  |
+  |->vm_rethook:			// Dispatch target for return hooks.
+  |  lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  andix. TMP0, TMP3, HOOK_ACTIVE	// Hook already active?
+  |  beq >1
+  |5:  // Re-dispatch to static ins.
+  |  addi TMP1, TMP1, GG_DISP2STATIC	// Assumes decode_OPP TMP1, INS.
+  |  lpx TMP0, DISPATCH, TMP1
+  |  mtctr TMP0
+  |  bctr
+  |
+  |->vm_inshook:			// Dispatch target for instr/line hooks.
+  |  lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
+  |  lwz TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  andix. TMP0, TMP3, HOOK_ACTIVE	// Hook already active?
+  |   rlwinm TMP0, TMP3, 31-LUA_HOOKLINE, 31, 0
+  |  bne <5
+  |
+  |   cmpwi cr1, TMP0, 0
+  |  addic. TMP2, TMP2, -1
+  |   beq cr1, <5
+  |  stw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
+  |  beq >1
+  |   bge cr1, <5
+  |1:
+  |  mr CARG1, L
+  |   stw MULTRES, SAVE_MULTRES
+  |  mr CARG2, PC
+  |   stp BASE, L->base
+  |  // SAVE_PC must hold the _previous_ PC. The callee updates it with PC.
+  |  bl extern lj_dispatch_ins		// (lua_State *L, const BCIns *pc)
+  |3:
+  |  lp BASE, L->base
+  |4:  // Re-dispatch to static ins.
+  |  lwz INS, -4(PC)
+  |  decode_OPP TMP1, INS
+  |   decode_RB8 RB, INS
+  |  addi TMP1, TMP1, GG_DISP2STATIC
+  |   decode_RD8 RD, INS
+  |  lpx TMP0, DISPATCH, TMP1
+  |   decode_RA8 RA, INS
+  |   decode_RC8 RC, INS
+  |  mtctr TMP0
+  |  bctr
+  |
+  |->cont_hook:				// Continue from hook yield.
+  |  addi PC, PC, 4
+  |  lwz MULTRES, -20(RB)		// Restore MULTRES for *M ins.
+  |  b <4
+  |
+  |->vm_hotloop:			// Hot loop counter underflow.
+  |.if JIT
+  |  lwz LFUNC:TMP1, FRAME_FUNC(BASE)
+  |   addi CARG1, DISPATCH, GG_DISP2J
+  |   stw PC, SAVE_PC
+  |  lwz TMP1, LFUNC:TMP1->pc
+  |   mr CARG2, PC
+  |   stw L, DISPATCH_J(L)(DISPATCH)
+  |  lbz TMP1, PC2PROTO(framesize)(TMP1)
+  |   stp BASE, L->base
+  |  slwi TMP1, TMP1, 3
+  |  add TMP1, BASE, TMP1
+  |  stp TMP1, L->top
+  |  bl extern lj_trace_hot		// (jit_State *J, const BCIns *pc)
+  |  b <3
+  |.endif
+  |
+  |->vm_callhook:			// Dispatch target for call hooks.
+  |  mr CARG2, PC
+  |.if JIT
+  |  b >1
+  |.endif
+  |
+  |->vm_hotcall:			// Hot call counter underflow.
+  |.if JIT
+  |  ori CARG2, PC, 1
+  |1:
+  |.endif
+  |  add TMP0, BASE, RC
+  |   stw PC, SAVE_PC
+  |  mr CARG1, L
+  |   stp BASE, L->base
+  |  sub RA, RA, BASE
+  |   stp TMP0, L->top
+  |  bl extern lj_dispatch_call		// (lua_State *L, const BCIns *pc)
+  |  // Returns ASMFunction.
+  |  lp BASE, L->base
+  |   lp TMP0, L->top
+  |   stw ZERO, SAVE_PC			// Invalidate for subsequent line hook.
+  |  sub NARGS8:RC, TMP0, BASE
+  |  add RA, BASE, RA
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+  |  lwz INS, -4(PC)
+  |  mtctr CRET1
+  |  bctr
+  |
+  |->cont_stitch:			// Trace stitching.
+  |.if JIT
+  |  // RA = resultptr, RB = meta base
+  |  lwz INS, -4(PC)
+  |    lwz TRACE:TMP2, -20(RB)		// Save previous trace.
+  |   addic. TMP1, MULTRES, -8
+  |  decode_RA8 RC, INS			// Call base.
+  |   beq >2
+  |1:  // Move results down.
+  |.if FPU
+  |  lfd f0, 0(RA)
+  |.else
+  |  lwz CARG1, 0(RA)
+  |  lwz CARG2, 4(RA)
+  |.endif
+  |   addic. TMP1, TMP1, -8
+  |    addi RA, RA, 8
+  |.if FPU
+  |  stfdx f0, BASE, RC
+  |.else
+  |  add CARG3, BASE, RC
+  |  stw CARG1, 0(CARG3)
+  |  stw CARG2, 4(CARG3)
+  |.endif
+  |    addi RC, RC, 8
+  |   bne <1
+  |2:
+  |   decode_RA8 RA, INS
+  |   decode_RB8 RB, INS
+  |   add RA, RA, RB
+  |3:
+  |   cmplw RA, RC
+  |   bgt >9				// More results wanted?
+  |
+  |  lhz TMP3, TRACE:TMP2->traceno
+  |  lhz RD, TRACE:TMP2->link
+  |  cmpw RD, TMP3
+  |   cmpwi cr1, RD, 0
+  |  beq ->cont_nop			// Blacklisted.
+  |    slwi RD, RD, 3
+  |   bne cr1, =>BC_JLOOP		// Jump to stitched trace.
+  |
+  |  // Stitch a new trace to the previous trace.
+  |  stw TMP3, DISPATCH_J(exitno)(DISPATCH)
+  |  stp L, DISPATCH_J(L)(DISPATCH)
+  |  stp BASE, L->base
+  |  addi CARG1, DISPATCH, GG_DISP2J
+  |  mr CARG2, PC
+  |  bl extern lj_dispatch_stitch	// (jit_State *J, const BCIns *pc)
+  |  lp BASE, L->base
+  |  b ->cont_nop
+  |
+  |9:
+  |  stwx TISNIL, BASE, RC
+  |  addi RC, RC, 8
+  |  b <3
+  |.endif
+  |
+  |->vm_profhook:			// Dispatch target for profiler hook.
+#if LJ_HASPROFILE
+  |  mr CARG1, L
+  |   stw MULTRES, SAVE_MULTRES
+  |  mr CARG2, PC
+  |   stp BASE, L->base
+  |  bl extern lj_dispatch_profile	// (lua_State *L, const BCIns *pc)
+  |  // HOOK_PROFILE is off again, so re-dispatch to dynamic instruction.
+  |  lp BASE, L->base
+  |  subi PC, PC, 4
+  |  b ->cont_nop
+#endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Trace exit handler -------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro savex_, a, b, c, d
+  |.if FPU
+  |  stfd f..a, 16+a*8(sp)
+  |  stfd f..b, 16+b*8(sp)
+  |  stfd f..c, 16+c*8(sp)
+  |  stfd f..d, 16+d*8(sp)
+  |.endif
+  |.endmacro
+  |
+  |->vm_exit_handler:
+  |.if JIT
+  |  addi sp, sp, -(16+32*8+32*4)
+  |  stmw r2, 16+32*8+2*4(sp)
+  |    addi DISPATCH, JGL, -GG_DISP2G-32768
+  |    li CARG2, ~LJ_VMST_EXIT
+  |   lwz CARG1, 16+32*8+32*4(sp)	// Get stack chain.
+  |    stw CARG2, DISPATCH_GL(vmstate)(DISPATCH)
+  |  savex_ 0,1,2,3
+  |   stw CARG1, 0(sp)			// Store extended stack chain.
+  |   clrso TMP1
+  |  savex_ 4,5,6,7
+  |   addi CARG2, sp, 16+32*8+32*4	// Recompute original value of sp.
+  |  savex_ 8,9,10,11
+  |   stw CARG2, 16+32*8+1*4(sp)	// Store sp in RID_SP.
+  |  savex_ 12,13,14,15
+  |   mflr CARG3
+  |   li TMP1, 0
+  |  savex_ 16,17,18,19
+  |   stw TMP1, 16+32*8+0*4(sp)		// Clear RID_TMP.
+  |  savex_ 20,21,22,23
+  |   lhz CARG4, 2(CARG3)		// Load trace number.
+  |  savex_ 24,25,26,27
+  |  lwz L, DISPATCH_GL(cur_L)(DISPATCH)
+  |  savex_ 28,29,30,31
+  |   sub CARG3, TMP0, CARG3		// Compute exit number.
+  |  lp BASE, DISPATCH_GL(jit_base)(DISPATCH)
+  |   srwi CARG3, CARG3, 2
+  |  stp L, DISPATCH_J(L)(DISPATCH)
+  |   subi CARG3, CARG3, 2
+  |  stp BASE, L->base
+  |   stw CARG4, DISPATCH_J(parent)(DISPATCH)
+  |  stw TMP1, DISPATCH_GL(jit_base)(DISPATCH)
+  |  addi CARG1, DISPATCH, GG_DISP2J
+  |   stw CARG3, DISPATCH_J(exitno)(DISPATCH)
+  |  addi CARG2, sp, 16
+  |  bl extern lj_trace_exit		// (jit_State *J, ExitState *ex)
+  |  // Returns MULTRES (unscaled) or negated error code.
+  |  lp TMP1, L->cframe
+  |  lwz TMP2, 0(sp)
+  |   lp BASE, L->base
+  |.if GPR64
+  |  rldicr sp, TMP1, 0, 61
+  |.else
+  |  rlwinm sp, TMP1, 0, 0, 29
+  |.endif
+  |   lwz PC, SAVE_PC			// Get SAVE_PC.
+  |  stw TMP2, 0(sp)
+  |  stw L, SAVE_L			// Set SAVE_L (on-trace resume/yield).
+  |  b >1
+  |.endif
+  |->vm_exit_interp:
+  |.if JIT
+  |  // CARG1 = MULTRES or negated error code, BASE, PC and JGL set.
+  |  lwz L, SAVE_L
+  |  addi DISPATCH, JGL, -GG_DISP2G-32768
+  |  stp BASE, L->base
+  |1:
+  |  cmpwi CARG1, 0
+  |  blt >9				// Check for error from exit.
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+  |   slwi MULTRES, CARG1, 3
+  |    li TMP2, 0
+  |   stw MULTRES, SAVE_MULTRES
+  |  lwz TMP1, LFUNC:RB->pc
+  |    stw TMP2, DISPATCH_GL(jit_base)(DISPATCH)
+  |  lwz KBASE, PC2PROTO(k)(TMP1)
+  |  // Setup type comparison constants.
+  |  li TISNUM, LJ_TISNUM
+  |  .FPU lus TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |  .FPU stw TMP3, TMPD
+  |  li ZERO, 0
+  |  .FPU ori TMP3, TMP3, 0x0004	// TONUM = 2^52 + 2^51 + 2^31 (float).
+  |  .FPU lfs TOBIT, TMPD
+  |  .FPU stw TMP3, TMPD
+  |  .FPU lus TMP0, 0x4338			// Hiword of 2^52 + 2^51 (double)
+  |    li TISNIL, LJ_TNIL
+  |  .FPU stw TMP0, TONUM_HI
+  |  .FPU lfs TONUM, TMPD
+  |  // Modified copy of ins_next which handles function header dispatch, too.
+  |  lwz INS, 0(PC)
+  |   addi PC, PC, 4
+  |    // Assumes TISNIL == ~LJ_VMST_INTERP == -1.
+  |    stw TISNIL, DISPATCH_GL(vmstate)(DISPATCH)
+  |  decode_OPP TMP1, INS
+  |   decode_RA8 RA, INS
+  |  lpx TMP0, DISPATCH, TMP1
+  |  mtctr TMP0
+  |  cmplwi TMP1, BC_FUNCF*4		// Function header?
+  |  bge >2
+  |   decode_RB8 RB, INS
+  |   decode_RD8 RD, INS
+  |   decode_RC8 RC, INS
+  |  bctr
+  |2:
+  |  cmplwi TMP1, (BC_FUNCC+2)*4	// Fast function?
+  |  blt >3
+  |  // Check frame below fast function.
+  |  lwz TMP1, FRAME_PC(BASE)
+  |  andix. TMP0, TMP1, FRAME_TYPE
+  |  bney >3				// Trace stitching continuation?
+  |  // Otherwise set KBASE for Lua function below fast function.
+  |  lwz TMP2, -4(TMP1)
+  |  decode_RA8 TMP0, TMP2
+  |  sub TMP1, BASE, TMP0
+  |  lwz LFUNC:TMP2, -12(TMP1)
+  |  lwz TMP1, LFUNC:TMP2->pc
+  |  lwz KBASE, PC2PROTO(k)(TMP1)
+  |3:
+  |   subi RC, MULTRES, 8
+  |   add RA, RA, BASE
+  |  bctr
+  |
+  |9:  // Rethrow error from the right C frame.
+  |  neg CARG2, CARG1
+  |  mr CARG1, L
+  |  bl extern lj_err_trace		// (lua_State *L, int errcode)
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Math helper functions ----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// NYI: Use internal implementations of floor, ceil, trunc, sfcmp.
+  |
+  |.macro sfi2d, AHI, ALO
+  |.if not FPU
+  |  mr. AHI, ALO
+  |  bclr 12, 2				// Handle zero first.
+  |  srawi TMP0, ALO, 31
+  |  xor TMP1, ALO, TMP0
+  |  sub TMP1, TMP1, TMP0		// Absolute value in TMP1.
+  |  cntlzw AHI, TMP1
+  |  andix. TMP0, TMP0, 0x800		// Mask sign bit.
+  |  slw TMP1, TMP1, AHI		// Align mantissa left with leading 1.
+  |  subfic AHI, AHI, 0x3ff+31-1	// Exponent -1 in AHI.
+  |  slwi ALO, TMP1, 21
+  |  or AHI, AHI, TMP0			// Sign | Exponent.
+  |  srwi TMP1, TMP1, 11
+  |  slwi AHI, AHI, 20			// Align left.
+  |  add AHI, AHI, TMP1			// Add mantissa, increment exponent.
+  |  blr
+  |.endif
+  |.endmacro
+  |
+  |// Input: CARG2. Output: CARG1, CARG2. Temporaries: TMP0, TMP1.
+  |->vm_sfi2d_1:
+  |  sfi2d CARG1, CARG2
+  |
+  |// Input: CARG4. Output: CARG3, CARG4. Temporaries: TMP0, TMP1.
+  |->vm_sfi2d_2:
+  |  sfi2d CARG3, CARG4
+  |
+  |->vm_modi:
+  |  divwo. TMP0, CARG1, CARG2
+  |  bso >1
+  |.if GPR64
+  |   xor CARG3, CARG1, CARG2
+  |   cmpwi CARG3, 0
+  |.else
+  |   xor. CARG3, CARG1, CARG2
+  |.endif
+  |  mullw TMP0, TMP0, CARG2
+  |  sub CARG1, CARG1, TMP0
+  |   bgelr
+  |  cmpwi CARG1, 0; beqlr
+  |  add CARG1, CARG1, CARG2
+  |  blr
+  |1:
+  |  cmpwi CARG2, 0
+  |   li CARG1, 0
+  |  beqlr
+  |  clrso TMP0			// Clear SO for -2147483648 % -1 and return 0.
+  |  blr
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Miscellaneous functions --------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// void lj_vm_cachesync(void *start, void *end)
+  |// Flush D-Cache and invalidate I-Cache. Assumes 32 byte cache line size.
+  |// This is a good lower bound, except for very ancient PPC models.
+  |->vm_cachesync:
+  |.if JIT or FFI
+  |  // Compute start of first cache line and number of cache lines.
+  |  rlwinm CARG1, CARG1, 0, 0, 26
+  |  sub CARG2, CARG2, CARG1
+  |  addi CARG2, CARG2, 31
+  |  rlwinm. CARG2, CARG2, 27, 5, 31
+  |  beqlr
+  |  mtctr CARG2
+  |  mr CARG3, CARG1
+  |1:  // Flush D-Cache.
+  |  dcbst r0, CARG1
+  |  addi CARG1, CARG1, 32
+  |  bdnz <1
+  |  sync
+  |  mtctr CARG2
+  |1:  // Invalidate I-Cache.
+  |  icbi r0, CARG3
+  |  addi CARG3, CARG3, 32
+  |  bdnz <1
+  |  isync
+  |  blr
+  |.endif
+  |
+  |->vm_next:
+  |.if JIT
+  |  NYI  // On big-endian.
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- FFI helper functions -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Handler for callback functions. Callback slot number in r11, g in r12.
+  |->vm_ffi_callback:
+  |.if FFI
+  |.type CTSTATE, CTState, PC
+  |  saveregs
+  |  lwz CTSTATE, GL:r12->ctype_state
+  |   addi DISPATCH, r12, GG_G2DISP
+  |  stw r11, CTSTATE->cb.slot
+  |  stw r3, CTSTATE->cb.gpr[0]
+  |   .FPU stfd f1, CTSTATE->cb.fpr[0]
+  |  stw r4, CTSTATE->cb.gpr[1]
+  |   .FPU stfd f2, CTSTATE->cb.fpr[1]
+  |  stw r5, CTSTATE->cb.gpr[2]
+  |   .FPU stfd f3, CTSTATE->cb.fpr[2]
+  |  stw r6, CTSTATE->cb.gpr[3]
+  |   .FPU stfd f4, CTSTATE->cb.fpr[3]
+  |  stw r7, CTSTATE->cb.gpr[4]
+  |   .FPU stfd f5, CTSTATE->cb.fpr[4]
+  |  stw r8, CTSTATE->cb.gpr[5]
+  |   .FPU stfd f6, CTSTATE->cb.fpr[5]
+  |  stw r9, CTSTATE->cb.gpr[6]
+  |   .FPU stfd f7, CTSTATE->cb.fpr[6]
+  |  stw r10, CTSTATE->cb.gpr[7]
+  |   .FPU stfd f8, CTSTATE->cb.fpr[7]
+  |  addi TMP0, sp, CFRAME_SPACE+8
+  |  stw TMP0, CTSTATE->cb.stack
+  |   mr CARG1, CTSTATE
+  |  stw CTSTATE, SAVE_PC		// Any value outside of bytecode is ok.
+  |   mr CARG2, sp
+  |  bl extern lj_ccallback_enter	// (CTState *cts, void *cf)
+  |  // Returns lua_State *.
+  |  lp BASE, L:CRET1->base
+  |     li TISNUM, LJ_TISNUM		// Setup type comparison constants.
+  |  lp RC, L:CRET1->top
+  |     .FPU lus TMP3, 0x59c0		// TOBIT = 2^52 + 2^51 (float).
+  |     li ZERO, 0
+  |   mr L, CRET1
+  |     .FPU stw TMP3, TMPD
+  |     .FPU lus TMP0, 0x4338		// Hiword of 2^52 + 2^51 (double)
+  |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+  |     .FPU ori TMP3, TMP3, 0x0004	// TONUM = 2^52 + 2^51 + 2^31 (float).
+  |     .FPU stw TMP0, TONUM_HI
+  |     li TISNIL, LJ_TNIL
+  |    li_vmstate INTERP
+  |     .FPU lfs TOBIT, TMPD
+  |     .FPU stw TMP3, TMPD
+  |  sub RC, RC, BASE
+  |    st_vmstate
+  |     .FPU lfs TONUM, TMPD
+  |  ins_callt
+  |.endif
+  |
+  |->cont_ffi_callback:			// Return from FFI callback.
+  |.if FFI
+  |  lwz CTSTATE, DISPATCH_GL(ctype_state)(DISPATCH)
+  |   stp BASE, L->base
+  |   stp RB, L->top
+  |  stp L, CTSTATE->L
+  |  mr CARG1, CTSTATE
+  |  mr CARG2, RA
+  |  bl extern lj_ccallback_leave	// (CTState *cts, TValue *o)
+  |  lwz CRET1, CTSTATE->cb.gpr[0]
+  |  .FPU lfd FARG1, CTSTATE->cb.fpr[0]
+  |  lwz CRET2, CTSTATE->cb.gpr[1]
+  |  b ->vm_leave_unw
+  |.endif
+  |
+  |->vm_ffi_call:			// Call C function via FFI.
+  |  // Caveat: needs special frame unwinding, see below.
+  |.if FFI
+  |  .type CCSTATE, CCallState, CARG1
+  |  lwz TMP1, CCSTATE->spadj
+  |    mflr TMP0
+  |   lbz CARG2, CCSTATE->nsp
+  |   lbz CARG3, CCSTATE->nfpr
+  |  neg TMP1, TMP1
+  |    stw TMP0, 4(sp)
+  |   cmpwi cr1, CARG3, 0
+  |  mr TMP2, sp
+  |   addic. CARG2, CARG2, -1
+  |  stwux sp, sp, TMP1
+  |   crnot 4*cr1+eq, 4*cr1+eq		// For vararg calls.
+  |  stw r14, -4(TMP2)
+  |  stw CCSTATE, -8(TMP2)
+  |  mr r14, TMP2
+  |  la TMP1, CCSTATE->stack
+  |   slwi CARG2, CARG2, 2
+  |   blty >2
+  |  la TMP2, 8(sp)
+  |1:
+  |  lwzx TMP0, TMP1, CARG2
+  |  stwx TMP0, TMP2, CARG2
+  |   addic. CARG2, CARG2, -4
+  |  bge <1
+  |2:
+  |  bney cr1, >3
+  |  .FPU lfd f1, CCSTATE->fpr[0]
+  |  .FPU lfd f2, CCSTATE->fpr[1]
+  |  .FPU lfd f3, CCSTATE->fpr[2]
+  |  .FPU lfd f4, CCSTATE->fpr[3]
+  |  .FPU lfd f5, CCSTATE->fpr[4]
+  |  .FPU lfd f6, CCSTATE->fpr[5]
+  |  .FPU lfd f7, CCSTATE->fpr[6]
+  |  .FPU lfd f8, CCSTATE->fpr[7]
+  |3:
+  |   lp TMP0, CCSTATE->func
+  |  lwz CARG2, CCSTATE->gpr[1]
+  |  lwz CARG3, CCSTATE->gpr[2]
+  |  lwz CARG4, CCSTATE->gpr[3]
+  |  lwz CARG5, CCSTATE->gpr[4]
+  |   mtctr TMP0
+  |  lwz r8, CCSTATE->gpr[5]
+  |  lwz r9, CCSTATE->gpr[6]
+  |  lwz r10, CCSTATE->gpr[7]
+  |  lwz CARG1, CCSTATE->gpr[0]		// Do this last, since CCSTATE is CARG1.
+  |   bctrl
+  |  lwz CCSTATE:TMP1, -8(r14)
+  |  lwz TMP2, -4(r14)
+  |   lwz TMP0, 4(r14)
+  |  stw CARG1, CCSTATE:TMP1->gpr[0]
+  |  .FPU stfd FARG1, CCSTATE:TMP1->fpr[0]
+  |  stw CARG2, CCSTATE:TMP1->gpr[1]
+  |   mtlr TMP0
+  |  stw CARG3, CCSTATE:TMP1->gpr[2]
+  |   mr sp, r14
+  |  stw CARG4, CCSTATE:TMP1->gpr[3]
+  |   mr r14, TMP2
+  |  blr
+  |.endif
+  |// Note: vm_ffi_call must be the last function in this object file!
+  |
+  |//-----------------------------------------------------------------------
+}
+
+/* Generate the code for a single instruction. */
+static void build_ins(BuildCtx *ctx, BCOp op, int defop)
+{
+  int vk = 0;
+  |=>defop:
+
+  switch (op) {
+
+  /* -- Comparison ops ---------------------------------------------------- */
+
+  /* Remember: all ops branch for a true comparison, fall through otherwise. */
+
+  case BC_ISLT: case BC_ISGE: case BC_ISLE: case BC_ISGT:
+    |  // RA = src1*8, RD = src2*8, JMP with RD = target
+    |.if DUALNUM
+    |  lwzux CARG1, RA, BASE
+    |    addi PC, PC, 4
+    |   lwz CARG2, 4(RA)
+    |  lwzux CARG3, RD, BASE
+    |    lwz TMP2, -4(PC)
+    |  checknum cr0, CARG1
+    |   lwz CARG4, 4(RD)
+    |    decode_RD4 TMP2, TMP2
+    |  checknum cr1, CARG3
+    |    addis SAVE0, TMP2, -(BCBIAS_J*4 >> 16)
+    |  bne cr0, >7
+    |  bne cr1, >8
+    |   cmpw CARG2, CARG4
+    if (op == BC_ISLT) {
+      |  bge >2
+    } else if (op == BC_ISGE) {
+      |  blt >2
+    } else if (op == BC_ISLE) {
+      |  bgt >2
+    } else {
+      |  ble >2
+    }
+    |1:
+    |  add PC, PC, SAVE0
+    |2:
+    |  ins_next
+    |
+    |7:  // RA is not an integer.
+    |  bgt cr0, ->vmeta_comp
+    |  // RA is a number.
+    |   .FPU lfd f0, 0(RA)
+    |  bgt cr1, ->vmeta_comp
+    |  blt cr1, >4
+    |  // RA is a number, RD is an integer.
+    |.if FPU
+    |  tonum_i f1, CARG4
+    |.else
+    |  bl ->vm_sfi2d_2
+    |.endif
+    |  b >5
+    |
+    |8: // RA is an integer, RD is not an integer.
+    |  bgt cr1, ->vmeta_comp
+    |  // RA is an integer, RD is a number.
+    |.if FPU
+    |  tonum_i f0, CARG2
+    |.else
+    |  bl ->vm_sfi2d_1
+    |.endif
+    |4:
+    |  .FPU lfd f1, 0(RD)
+    |5:
+    |.if FPU
+    |  fcmpu cr0, f0, f1
+    |.else
+    |  blex __ledf2
+    |  cmpwi CRET1, 0
+    |.endif
+    if (op == BC_ISLT) {
+      |  bge <2
+    } else if (op == BC_ISGE) {
+      |  blt <2
+    } else if (op == BC_ISLE) {
+      |  cror 4*cr0+lt, 4*cr0+lt, 4*cr0+eq
+      |  bge <2
+    } else {
+      |  cror 4*cr0+lt, 4*cr0+lt, 4*cr0+eq
+      |  blt <2
+    }
+    |  b <1
+    |.else
+    |  lwzx TMP0, BASE, RA
+    |    addi PC, PC, 4
+    |   lfdx f0, BASE, RA
+    |  lwzx TMP1, BASE, RD
+    |  checknum cr0, TMP0
+    |    lwz TMP2, -4(PC)
+    |   lfdx f1, BASE, RD
+    |  checknum cr1, TMP1
+    |    decode_RD4 TMP2, TMP2
+    |  bge cr0, ->vmeta_comp
+    |    addis TMP2, TMP2, -(BCBIAS_J*4 >> 16)
+    |  bge cr1, ->vmeta_comp
+    |  fcmpu cr0, f0, f1
+    if (op == BC_ISLT) {
+      |  bge >1
+    } else if (op == BC_ISGE) {
+      |  blt >1
+    } else if (op == BC_ISLE) {
+      |  cror 4*cr0+lt, 4*cr0+lt, 4*cr0+eq
+      |  bge >1
+    } else {
+      |  cror 4*cr0+lt, 4*cr0+lt, 4*cr0+eq
+      |  blt >1
+    }
+    |  add PC, PC, TMP2
+    |1:
+    |  ins_next
+    |.endif
+    break;
+
+  case BC_ISEQV: case BC_ISNEV:
+    vk = op == BC_ISEQV;
+    |  // RA = src1*8, RD = src2*8, JMP with RD = target
+    |.if DUALNUM
+    |  lwzux CARG1, RA, BASE
+    |    addi PC, PC, 4
+    |   lwz CARG2, 4(RA)
+    |  lwzux CARG3, RD, BASE
+    |  checknum cr0, CARG1
+    |    lwz SAVE0, -4(PC)
+    |  checknum cr1, CARG3
+    |    decode_RD4 SAVE0, SAVE0
+    |   lwz CARG4, 4(RD)
+    |  cror 4*cr7+gt, 4*cr0+gt, 4*cr1+gt
+    |    addis SAVE0, SAVE0, -(BCBIAS_J*4 >> 16)
+    if (vk) {
+      |  ble cr7, ->BC_ISEQN_Z
+    } else {
+      |  ble cr7, ->BC_ISNEN_Z
+    }
+    |.else
+    |  lwzux CARG1, RA, BASE
+    |   lwz SAVE0, 0(PC)
+    |    lfd f0, 0(RA)
+    |   addi PC, PC, 4
+    |  lwzux CARG3, RD, BASE
+    |  checknum cr0, CARG1
+    |   decode_RD4 SAVE0, SAVE0
+    |    lfd f1, 0(RD)
+    |  checknum cr1, CARG3
+    |   addis SAVE0, SAVE0, -(BCBIAS_J*4 >> 16)
+    |  bge cr0, >5
+    |  bge cr1, >5
+    |  fcmpu cr0, f0, f1
+    if (vk) {
+      |  bne >1
+      |  add PC, PC, SAVE0
+    } else {
+      |  beq >1
+      |  add PC, PC, SAVE0
+    }
+    |1:
+    |  ins_next
+    |.endif
+    |5:  // Either or both types are not numbers.
+    |.if not DUALNUM
+    |    lwz CARG2, 4(RA)
+    |    lwz CARG4, 4(RD)
+    |.endif
+    |.if FFI
+    |  cmpwi cr7, CARG1, LJ_TCDATA
+    |  cmpwi cr5, CARG3, LJ_TCDATA
+    |.endif
+    |   not TMP2, CARG1
+    |  cmplw CARG1, CARG3
+    |   cmplwi cr1, TMP2, ~LJ_TISPRI		// Primitive?
+    |.if FFI
+    |  cror 4*cr7+eq, 4*cr7+eq, 4*cr5+eq
+    |.endif
+    |   cmplwi cr6, TMP2, ~LJ_TISTABUD		// Table or userdata?
+    |.if FFI
+    |  beq cr7, ->vmeta_equal_cd
+    |.endif
+    |    cmplw cr5, CARG2, CARG4
+    |  crandc 4*cr0+gt, 4*cr0+eq, 4*cr1+gt	// 2: Same type and primitive.
+    |  crorc 4*cr0+lt, 4*cr5+eq, 4*cr0+eq	// 1: Same tv or different type.
+    |  crand 4*cr0+eq, 4*cr0+eq, 4*cr5+eq	// 0: Same type and same tv.
+    |   mr SAVE1, PC
+    |  cror 4*cr0+eq, 4*cr0+eq, 4*cr0+gt	// 0 or 2.
+    |  cror 4*cr0+lt, 4*cr0+lt, 4*cr0+gt	// 1 or 2.
+    if (vk) {
+      |  bne cr0, >6
+      |  add PC, PC, SAVE0
+      |6:
+    } else {
+      |  beq cr0, >6
+      |  add PC, PC, SAVE0
+      |6:
+    }
+    |.if DUALNUM
+    |  bge cr0, >2			// Done if 1 or 2.
+    |1:
+    |  ins_next
+    |2:
+    |.else
+    |  blt cr0, <1			// Done if 1 or 2.
+    |.endif
+    |  blt cr6, <1			// Done if not tab/ud.
+    |
+    |  // Different tables or userdatas. Need to check __eq metamethod.
+    |  // Field metatable must be at same offset for GCtab and GCudata!
+    |   mr CARG3, CARG4
+    |  lwz TAB:TMP2, TAB:CARG2->metatable
+    |   li CARG4, 1-vk			// ne = 0 or 1.
+    |  cmplwi TAB:TMP2, 0
+    |  beq <1				// No metatable?
+    |  lbz TMP2, TAB:TMP2->nomm
+    |  andix. TMP2, TMP2, 1<<MM_eq
+    |  bne <1				// Or 'no __eq' flag set?
+    |  mr PC, SAVE1			// Restore old PC.
+    |  b ->vmeta_equal			// Handle __eq metamethod.
+    break;
+
+  case BC_ISEQS: case BC_ISNES:
+    vk = op == BC_ISEQS;
+    |  // RA = src*8, RD = str_const*8 (~), JMP with RD = target
+    |  lwzux TMP0, RA, BASE
+    |   srwi RD, RD, 1
+    |  lwz STR:TMP3, 4(RA)
+    |    lwz TMP2, 0(PC)
+    |   subfic RD, RD, -4
+    |    addi PC, PC, 4
+    |.if FFI
+    |  cmpwi TMP0, LJ_TCDATA
+    |.endif
+    |   lwzx STR:TMP1, KBASE, RD	// KBASE-4-str_const*4
+    |  .gpr64 extsw TMP0, TMP0
+    |  subfic TMP0, TMP0, LJ_TSTR
+    |.if FFI
+    |  beq ->vmeta_equal_cd
+    |.endif
+    |  sub TMP1, STR:TMP1, STR:TMP3
+    |  or TMP0, TMP0, TMP1
+    |    decode_RD4 TMP2, TMP2
+    |  subfic TMP0, TMP0, 0
+    |    addis TMP2, TMP2, -(BCBIAS_J*4 >> 16)
+    |  subfe TMP1, TMP1, TMP1
+    if (vk) {
+      |  andc TMP2, TMP2, TMP1
+    } else {
+      |  and TMP2, TMP2, TMP1
+    }
+    |  add PC, PC, TMP2
+    |  ins_next
+    break;
+
+  case BC_ISEQN: case BC_ISNEN:
+    vk = op == BC_ISEQN;
+    |  // RA = src*8, RD = num_const*8, JMP with RD = target
+    |.if DUALNUM
+    |  lwzux CARG1, RA, BASE
+    |    addi PC, PC, 4
+    |   lwz CARG2, 4(RA)
+    |  lwzux CARG3, RD, KBASE
+    |  checknum cr0, CARG1
+    |    lwz SAVE0, -4(PC)
+    |  checknum cr1, CARG3
+    |    decode_RD4 SAVE0, SAVE0
+    |   lwz CARG4, 4(RD)
+    |    addis SAVE0, SAVE0, -(BCBIAS_J*4 >> 16)
+    if (vk) {
+      |->BC_ISEQN_Z:
+    } else {
+      |->BC_ISNEN_Z:
+    }
+    |  bne cr0, >7
+    |  bne cr1, >8
+    |   cmpw CARG2, CARG4
+    |4:
+    |.else
+    if (vk) {
+      |->BC_ISEQN_Z:  // Dummy label.
+    } else {
+      |->BC_ISNEN_Z:  // Dummy label.
+    }
+    |  lwzx CARG1, BASE, RA
+    |    addi PC, PC, 4
+    |   lfdx f0, BASE, RA
+    |    lwz SAVE0, -4(PC)
+    |  lfdx f1, KBASE, RD
+    |    decode_RD4 SAVE0, SAVE0
+    |  checknum CARG1
+    |    addis SAVE0, SAVE0, -(BCBIAS_J*4 >> 16)
+    |  bge >3
+    |  fcmpu cr0, f0, f1
+    |.endif
+    if (vk) {
+      |  bne >1
+      |  add PC, PC, SAVE0
+      |1:
+      |.if not FFI
+      |3:
+      |.endif
+    } else {
+      |  beq >2
+      |1:
+      |.if not FFI
+      |3:
+      |.endif
+      |  add PC, PC, SAVE0
+      |2:
+    }
+    |  ins_next
+    |.if FFI
+    |3:
+    |  cmpwi CARG1, LJ_TCDATA
+    |  beq ->vmeta_equal_cd
+    |  b <1
+    |.endif
+    |.if DUALNUM
+    |7:  // RA is not an integer.
+    |  bge cr0, <3
+    |  // RA is a number.
+    |   .FPU lfd f0, 0(RA)
+    |  blt cr1, >1
+    |  // RA is a number, RD is an integer.
+    |.if FPU
+    |  tonum_i f1, CARG4
+    |.else
+    |  bl ->vm_sfi2d_2
+    |.endif
+    |  b >2
+    |
+    |8: // RA is an integer, RD is a number.
+    |.if FPU
+    |  tonum_i f0, CARG2
+    |.else
+    |  bl ->vm_sfi2d_1
+    |.endif
+    |1:
+    |  .FPU lfd f1, 0(RD)
+    |2:
+    |.if FPU
+    |  fcmpu cr0, f0, f1
+    |.else
+    |  blex __ledf2
+    |  cmpwi CRET1, 0
+    |.endif
+    |  b <4
+    |.endif
+    break;
+
+  case BC_ISEQP: case BC_ISNEP:
+    vk = op == BC_ISEQP;
+    |  // RA = src*8, RD = primitive_type*8 (~), JMP with RD = target
+    |  lwzx TMP0, BASE, RA
+    |   srwi TMP1, RD, 3
+    |    lwz TMP2, 0(PC)
+    |   not TMP1, TMP1
+    |    addi PC, PC, 4
+    |.if FFI
+    |  cmpwi TMP0, LJ_TCDATA
+    |.endif
+    |  sub TMP0, TMP0, TMP1
+    |.if FFI
+    |  beq ->vmeta_equal_cd
+    |.endif
+    |    decode_RD4 TMP2, TMP2
+    |  .gpr64 extsw TMP0, TMP0
+    |  addic TMP0, TMP0, -1
+    |    addis TMP2, TMP2, -(BCBIAS_J*4 >> 16)
+    |  subfe TMP1, TMP1, TMP1
+    if (vk) {
+      |  and TMP2, TMP2, TMP1
+    } else {
+      |  andc TMP2, TMP2, TMP1
+    }
+    |  add PC, PC, TMP2
+    |  ins_next
+    break;
+
+  /* -- Unary test and copy ops ------------------------------------------- */
+
+  case BC_ISTC: case BC_ISFC: case BC_IST: case BC_ISF:
+    |  // RA = dst*8 or unused, RD = src*8, JMP with RD = target
+    |  lwzx TMP0, BASE, RD
+    |   lwz INS, 0(PC)
+    |   addi PC, PC, 4
+    if (op == BC_IST || op == BC_ISF) {
+      |  .gpr64 extsw TMP0, TMP0
+      |  subfic TMP0, TMP0, LJ_TTRUE
+      |   decode_RD4 TMP2, INS
+      |  subfe TMP1, TMP1, TMP1
+      |   addis TMP2, TMP2, -(BCBIAS_J*4 >> 16)
+      if (op == BC_IST) {
+	|  andc TMP2, TMP2, TMP1
+      } else {
+	|  and TMP2, TMP2, TMP1
+      }
+      |  add PC, PC, TMP2
+    } else {
+      |  li TMP1, LJ_TFALSE
+      |.if FPU
+      |   lfdx f0, BASE, RD
+      |.else
+      |   lwzux CARG1, RD, BASE
+      |   lwz CARG2, 4(RD)
+      |.endif
+      |  cmplw TMP0, TMP1
+      if (op == BC_ISTC) {
+	|  bge >1
+      } else {
+	|  blt >1
+      }
+      |  addis PC, PC, -(BCBIAS_J*4 >> 16)
+      |  decode_RD4 TMP2, INS
+      |.if FPU
+      |   stfdx f0, BASE, RA
+      |.else
+      |   stwux CARG1, RA, BASE
+      |   stw CARG2, 4(RA)
+      |.endif
+      |  add PC, PC, TMP2
+      |1:
+    }
+    |  ins_next
+    break;
+
+  case BC_ISTYPE:
+    |  // RA = src*8, RD = -type*8
+    |  lwzx TMP0, BASE, RA
+    |  srwi TMP1, RD, 3
+    |  ins_next1
+    |.if not PPE and not GPR64
+    |  add. TMP0, TMP0, TMP1
+    |.else
+    |  neg TMP1, TMP1
+    |  cmpw TMP0, TMP1
+    |.endif
+    |  bne ->vmeta_istype
+    |  ins_next2
+    break;
+  case BC_ISNUM:
+    |  // RA = src*8, RD = -(TISNUM-1)*8
+    |  lwzx TMP0, BASE, RA
+    |  ins_next1
+    |  checknum TMP0
+    |  bge ->vmeta_istype
+    |  ins_next2
+    break;
+
+  /* -- Unary ops --------------------------------------------------------- */
+
+  case BC_MOV:
+    |  // RA = dst*8, RD = src*8
+    |  ins_next1
+    |.if FPU
+    |  lfdx f0, BASE, RD
+    |  stfdx f0, BASE, RA
+    |.else
+    |  lwzux TMP0, RD, BASE
+    |  lwz TMP1, 4(RD)
+    |  stwux TMP0, RA, BASE
+    |  stw TMP1, 4(RA)
+    |.endif
+    |  ins_next2
+    break;
+  case BC_NOT:
+    |  // RA = dst*8, RD = src*8
+    |  ins_next1
+    |  lwzx TMP0, BASE, RD
+    |  .gpr64 extsw TMP0, TMP0
+    |  subfic TMP1, TMP0, LJ_TTRUE
+    |  adde TMP0, TMP0, TMP1
+    |  stwx TMP0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_UNM:
+    |  // RA = dst*8, RD = src*8
+    |  lwzux TMP1, RD, BASE
+    |   lwz TMP0, 4(RD)
+    |  checknum TMP1
+    |.if DUALNUM
+    |  bne >5
+    |.if GPR64
+    |  lus TMP2, 0x8000
+    |  neg TMP0, TMP0
+    |  cmplw TMP0, TMP2
+    |  beq >4
+    |.else
+    |  nego. TMP0, TMP0
+    |  bso >4
+    |1:
+    |.endif
+    |  ins_next1
+    |  stwux TISNUM, RA, BASE
+    |   stw TMP0, 4(RA)
+    |3:
+    |  ins_next2
+    |4:
+    |.if not GPR64
+    |  // Potential overflow.
+    |  checkov TMP1, <1			// Ignore unrelated overflow.
+    |.endif
+    |  lus TMP1, 0x41e0			// 2^31.
+    |  li TMP0, 0
+    |  b >7
+    |.endif
+    |5:
+    |  bge ->vmeta_unm
+    |  xoris TMP1, TMP1, 0x8000
+    |7:
+    |  ins_next1
+    |  stwux TMP1, RA, BASE
+    |   stw TMP0, 4(RA)
+    |.if DUALNUM
+    |  b <3
+    |.else
+    |  ins_next2
+    |.endif
+    break;
+  case BC_LEN:
+    |  // RA = dst*8, RD = src*8
+    |  lwzux TMP0, RD, BASE
+    |   lwz CARG1, 4(RD)
+    |  checkstr TMP0; bne >2
+    |  lwz CRET1, STR:CARG1->len
+    |1:
+    |.if DUALNUM
+    |  ins_next1
+    |  stwux TISNUM, RA, BASE
+    |   stw CRET1, 4(RA)
+    |.else
+    |  tonum_u f0, CRET1		// Result is a non-negative integer.
+    |  ins_next1
+    |  stfdx f0, BASE, RA
+    |.endif
+    |  ins_next2
+    |2:
+    |  checktab TMP0; bne ->vmeta_len
+#if LJ_52
+    |  lwz TAB:TMP2, TAB:CARG1->metatable
+    |  cmplwi TAB:TMP2, 0
+    |  bne >9
+    |3:
+#endif
+    |->BC_LEN_Z:
+    |  bl extern lj_tab_len		// (GCtab *t)
+    |  // Returns uint32_t (but less than 2^31).
+    |  b <1
+#if LJ_52
+    |9:
+    |  lbz TMP0, TAB:TMP2->nomm
+    |  andix. TMP0, TMP0, 1<<MM_len
+    |  bne <3				// 'no __len' flag set: done.
+    |  b ->vmeta_len
+#endif
+    break;
+
+  /* -- Binary ops -------------------------------------------------------- */
+
+    |.macro ins_arithpre
+    |  // RA = dst*8, RB = src1*8, RC = src2*8 | num_const*8
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    ||switch (vk) {
+    ||case 0:
+    |   lwzx CARG1, BASE, RB
+    |   .if DUALNUM
+    |     lwzx CARG3, KBASE, RC
+    |   .endif
+    |   .if FPU
+    |    lfdx f14, BASE, RB
+    |    lfdx f15, KBASE, RC
+    |   .else
+    |    add TMP1, BASE, RB
+    |    add TMP2, KBASE, RC
+    |    lwz CARG2, 4(TMP1)
+    |    lwz CARG4, 4(TMP2)
+    |   .endif
+    |   .if DUALNUM
+    |     checknum cr0, CARG1
+    |     checknum cr1, CARG3
+    |     crand 4*cr0+lt, 4*cr0+lt, 4*cr1+lt
+    |     bge ->vmeta_arith_vn
+    |   .else
+    |     checknum CARG1; bge ->vmeta_arith_vn
+    |   .endif
+    ||  break;
+    ||case 1:
+    |   lwzx CARG1, BASE, RB
+    |   .if DUALNUM
+    |     lwzx CARG3, KBASE, RC
+    |   .endif
+    |   .if FPU
+    |    lfdx f15, BASE, RB
+    |    lfdx f14, KBASE, RC
+    |   .else
+    |    add TMP1, BASE, RB
+    |    add TMP2, KBASE, RC
+    |    lwz CARG2, 4(TMP1)
+    |    lwz CARG4, 4(TMP2)
+    |   .endif
+    |   .if DUALNUM
+    |     checknum cr0, CARG1
+    |     checknum cr1, CARG3
+    |     crand 4*cr0+lt, 4*cr0+lt, 4*cr1+lt
+    |     bge ->vmeta_arith_nv
+    |   .else
+    |     checknum CARG1; bge ->vmeta_arith_nv
+    |   .endif
+    ||  break;
+    ||default:
+    |   lwzx CARG1, BASE, RB
+    |   lwzx CARG3, BASE, RC
+    |   .if FPU
+    |    lfdx f14, BASE, RB
+    |    lfdx f15, BASE, RC
+    |   .else
+    |    add TMP1, BASE, RB
+    |    add TMP2, BASE, RC
+    |    lwz CARG2, 4(TMP1)
+    |    lwz CARG4, 4(TMP2)
+    |   .endif
+    |   checknum cr0, CARG1
+    |   checknum cr1, CARG3
+    |   crand 4*cr0+lt, 4*cr0+lt, 4*cr1+lt
+    |   bge ->vmeta_arith_vv
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro ins_arithfallback, ins
+    ||switch (vk) {
+    ||case 0:
+    |   ins ->vmeta_arith_vn2
+    ||  break;
+    ||case 1:
+    |   ins ->vmeta_arith_nv2
+    ||  break;
+    ||default:
+    |   ins ->vmeta_arith_vv2
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro intmod, a, b, c
+    |  bl ->vm_modi
+    |.endmacro
+    |
+    |.macro fpmod, a, b, c
+    |->BC_MODVN_Z:
+    |  fdiv FARG1, b, c
+    |  // NYI: Use internal implementation of floor.
+    |  blex floor			// floor(b/c)
+    |  fmul a, FARG1, c
+    |  fsub a, b, a			// b - floor(b/c)*c
+    |.endmacro
+    |
+    |.macro sfpmod
+    |->BC_MODVN_Z:
+    |  stw CARG1, SFSAVE_1
+    |  stw CARG2, SFSAVE_2
+    |  mr SAVE0, CARG3
+    |  mr SAVE1, CARG4
+    |  blex __divdf3
+    |  blex floor
+    |  mr CARG3, SAVE0
+    |  mr CARG4, SAVE1
+    |  blex __muldf3
+    |  mr CARG3, CRET1
+    |  mr CARG4, CRET2
+    |  lwz CARG1, SFSAVE_1
+    |  lwz CARG2, SFSAVE_2
+    |  blex __subdf3
+    |.endmacro
+    |
+    |.macro ins_arithfp, fpins
+    |  ins_arithpre
+    |.if "fpins" == "fpmod_"
+    |  b ->BC_MODVN_Z			// Avoid 3 copies. It's slow anyway.
+    |.elif FPU
+    |  fpins f0, f14, f15
+    |  ins_next1
+    |  stfdx f0, BASE, RA
+    |  ins_next2
+    |.else
+    |  blex __divdf3			// Only soft-float div uses this macro.
+    |  ins_next1
+    |  stwux CRET1, RA, BASE
+    |  stw CRET2, 4(RA)
+    |  ins_next2
+    |.endif
+    |.endmacro
+    |
+    |.macro ins_arithdn, intins, fpins, fpcall
+    |  // RA = dst*8, RB = src1*8, RC = src2*8 | num_const*8
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    ||switch (vk) {
+    ||case 0:
+    |   lwzux CARG1, RB, BASE
+    |   lwzux CARG3, RC, KBASE
+    |    lwz CARG2, 4(RB)
+    |   checknum cr0, CARG1
+    |    lwz CARG4, 4(RC)
+    |   checknum cr1, CARG3
+    ||  break;
+    ||case 1:
+    |   lwzux CARG3, RB, BASE
+    |   lwzux CARG1, RC, KBASE
+    |    lwz CARG4, 4(RB)
+    |   checknum cr0, CARG3
+    |    lwz CARG2, 4(RC)
+    |   checknum cr1, CARG1
+    ||  break;
+    ||default:
+    |   lwzux CARG1, RB, BASE
+    |   lwzux CARG3, RC, BASE
+    |    lwz CARG2, 4(RB)
+    |   checknum cr0, CARG1
+    |    lwz CARG4, 4(RC)
+    |   checknum cr1, CARG3
+    ||  break;
+    ||}
+    |  bne >5
+    |  bne cr1, >5
+    |.if "intins" == "intmod"
+    |  mr CARG1, CARG2
+    |  mr CARG2, CARG4
+    |.endif
+    |  intins CARG1, CARG2, CARG4
+    |  bso >4
+    |1:
+    |  ins_next1
+    |  stwux TISNUM, RA, BASE
+    |  stw CARG1, 4(RA)
+    |2:
+    |  ins_next2
+    |4:  // Overflow.
+    |  checkov TMP0, <1			// Ignore unrelated overflow.
+    |  ins_arithfallback b
+    |5:  // FP variant.
+    |.if FPU
+    ||if (vk == 1) {
+    |  lfd f15, 0(RB)
+    |  lfd f14, 0(RC)
+    ||} else {
+    |  lfd f14, 0(RB)
+    |  lfd f15, 0(RC)
+    ||}
+    |.endif
+    |  crand 4*cr0+lt, 4*cr0+lt, 4*cr1+lt
+    |   ins_arithfallback bge
+    |.if "fpins" == "fpmod_"
+    |  b ->BC_MODVN_Z			// Avoid 3 copies. It's slow anyway.
+    |.else
+    |.if FPU
+    |  fpins f0, f14, f15
+    |  stfdx f0, BASE, RA
+    |.else
+    |.if "fpcall" == "sfpmod"
+    |  sfpmod
+    |.else
+    |  blex fpcall
+    |.endif
+    |  stwux CRET1, RA, BASE
+    |  stw CRET2, 4(RA)
+    |.endif
+    |  ins_next1
+    |  b <2
+    |.endif
+    |.endmacro
+    |
+    |.macro ins_arith, intins, fpins, fpcall
+    |.if DUALNUM
+    |  ins_arithdn intins, fpins, fpcall
+    |.else
+    |  ins_arithfp fpins
+    |.endif
+    |.endmacro
+
+  case BC_ADDVN: case BC_ADDNV: case BC_ADDVV:
+    |.if GPR64
+    |.macro addo32., y, a, b
+    |  // Need to check overflow for (a<<32) + (b<<32).
+    |  rldicr TMP0, a, 32, 31
+    |  rldicr TMP1, b, 32, 31
+    |  addo. TMP0, TMP0, TMP1
+    |  add y, a, b
+    |.endmacro
+    |  ins_arith addo32., fadd, __adddf3
+    |.else
+    |  ins_arith addo., fadd, __adddf3
+    |.endif
+    break;
+  case BC_SUBVN: case BC_SUBNV: case BC_SUBVV:
+    |.if GPR64
+    |.macro subo32., y, a, b
+    |  // Need to check overflow for (a<<32) - (b<<32).
+    |  rldicr TMP0, a, 32, 31
+    |  rldicr TMP1, b, 32, 31
+    |  subo. TMP0, TMP0, TMP1
+    |  sub y, a, b
+    |.endmacro
+    |  ins_arith subo32., fsub, __subdf3
+    |.else
+    |  ins_arith subo., fsub, __subdf3
+    |.endif
+    break;
+  case BC_MULVN: case BC_MULNV: case BC_MULVV:
+    |  ins_arith mullwo., fmul, __muldf3
+    break;
+  case BC_DIVVN: case BC_DIVNV: case BC_DIVVV:
+    |  ins_arithfp fdiv
+    break;
+  case BC_MODVN:
+    |  ins_arith intmod, fpmod, sfpmod
+    break;
+  case BC_MODNV: case BC_MODVV:
+    |  ins_arith intmod, fpmod_, sfpmod
+    break;
+  case BC_POW:
+    |  // NYI: (partial) integer arithmetic.
+    |  lwzx CARG1, BASE, RB
+    |  lwzx CARG3, BASE, RC
+    |.if FPU
+    |   lfdx FARG1, BASE, RB
+    |   lfdx FARG2, BASE, RC
+    |.else
+    |   add TMP1, BASE, RB
+    |   add TMP2, BASE, RC
+    |   lwz CARG2, 4(TMP1)
+    |   lwz CARG4, 4(TMP2)
+    |.endif
+    |  checknum cr0, CARG1
+    |  checknum cr1, CARG3
+    |  crand 4*cr0+lt, 4*cr0+lt, 4*cr1+lt
+    |  bge ->vmeta_arith_vv
+    |  blex pow
+    |  ins_next1
+    |.if FPU
+    |  stfdx FARG1, BASE, RA
+    |.else
+    |  stwux CARG1, RA, BASE
+    |  stw CARG2, 4(RA)
+    |.endif
+    |  ins_next2
+    break;
+
+  case BC_CAT:
+    |  // RA = dst*8, RB = src_start*8, RC = src_end*8
+    |  sub CARG3, RC, RB
+    |   stp BASE, L->base
+    |  add CARG2, BASE, RC
+    |  mr SAVE0, RB
+    |->BC_CAT_Z:
+    |   stw PC, SAVE_PC
+    |  mr CARG1, L
+    |  srwi CARG3, CARG3, 3
+    |  bl extern lj_meta_cat		// (lua_State *L, TValue *top, int left)
+    |  // Returns NULL (finished) or TValue * (metamethod).
+    |  cmplwi CRET1, 0
+    |   lp BASE, L->base
+    |  bne ->vmeta_binop
+    |  ins_next1
+    |.if FPU
+    |  lfdx f0, BASE, SAVE0		// Copy result from RB to RA.
+    |  stfdx f0, BASE, RA
+    |.else
+    |  lwzux TMP0, SAVE0, BASE
+    |  lwz TMP1, 4(SAVE0)
+    |  stwux TMP0, RA, BASE
+    |  stw TMP1, 4(RA)
+    |.endif
+    |  ins_next2
+    break;
+
+  /* -- Constant ops ------------------------------------------------------ */
+
+  case BC_KSTR:
+    |  // RA = dst*8, RD = str_const*8 (~)
+    |  srwi TMP1, RD, 1
+    |  subfic TMP1, TMP1, -4
+    |  ins_next1
+    |  lwzx TMP0, KBASE, TMP1		// KBASE-4-str_const*4
+    |  li TMP2, LJ_TSTR
+    |  stwux TMP2, RA, BASE
+    |  stw TMP0, 4(RA)
+    |  ins_next2
+    break;
+  case BC_KCDATA:
+    |.if FFI
+    |  // RA = dst*8, RD = cdata_const*8 (~)
+    |  srwi TMP1, RD, 1
+    |  subfic TMP1, TMP1, -4
+    |  ins_next1
+    |  lwzx TMP0, KBASE, TMP1		// KBASE-4-cdata_const*4
+    |  li TMP2, LJ_TCDATA
+    |  stwux TMP2, RA, BASE
+    |  stw TMP0, 4(RA)
+    |  ins_next2
+    |.endif
+    break;
+  case BC_KSHORT:
+    |  // RA = dst*8, RD = int16_literal*8
+    |.if DUALNUM
+    |  slwi RD, RD, 13
+    |  srawi RD, RD, 16
+    |  ins_next1
+    |   stwux TISNUM, RA, BASE
+    |   stw RD, 4(RA)
+    |  ins_next2
+    |.else
+    |  // The soft-float approach is faster.
+    |  slwi RD, RD, 13
+    |  srawi TMP1, RD, 31
+    |  xor TMP2, TMP1, RD
+    |  sub TMP2, TMP2, TMP1		// TMP2 = abs(x)
+    |  cntlzw TMP3, TMP2
+    |  subfic TMP1, TMP3, 0x40d		// TMP1 = exponent-1
+    |   slw TMP2, TMP2, TMP3		// TMP2 = left aligned mantissa
+    |    subfic TMP3, RD, 0
+    |  slwi TMP1, TMP1, 20
+    |   rlwimi RD, TMP2, 21, 1, 31	// hi = sign(x) | (mantissa>>11)
+    |    subfe TMP0, TMP0, TMP0
+    |   add RD, RD, TMP1		// hi = hi + exponent-1
+    |    and RD, RD, TMP0		// hi = x == 0 ? 0 : hi
+    |  ins_next1
+    |    stwux RD, RA, BASE
+    |    stw ZERO, 4(RA)
+    |  ins_next2
+    |.endif
+    break;
+  case BC_KNUM:
+    |  // RA = dst*8, RD = num_const*8
+    |  ins_next1
+    |.if FPU
+    |  lfdx f0, KBASE, RD
+    |  stfdx f0, BASE, RA
+    |.else
+    |  lwzux TMP0, RD, KBASE
+    |  lwz TMP1, 4(RD)
+    |  stwux TMP0, RA, BASE
+    |  stw TMP1, 4(RA)
+    |.endif
+    |  ins_next2
+    break;
+  case BC_KPRI:
+    |  // RA = dst*8, RD = primitive_type*8 (~)
+    |  srwi TMP1, RD, 3
+    |  not TMP0, TMP1
+    |  ins_next1
+    |  stwx TMP0, BASE, RA
+    |  ins_next2
+    break;
+  case BC_KNIL:
+    |  // RA = base*8, RD = end*8
+    |  stwx TISNIL, BASE, RA
+    |   addi RA, RA, 8
+    |1:
+    |  stwx TISNIL, BASE, RA
+    |  cmpw RA, RD
+    |   addi RA, RA, 8
+    |  blt <1
+    |  ins_next_
+    break;
+
+  /* -- Upvalue and function ops ------------------------------------------ */
+
+  case BC_UGET:
+    |  // RA = dst*8, RD = uvnum*8
+    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+    |   srwi RD, RD, 1
+    |   addi RD, RD, offsetof(GCfuncL, uvptr)
+    |  lwzx UPVAL:RB, LFUNC:RB, RD
+    |  ins_next1
+    |  lwz TMP1, UPVAL:RB->v
+    |.if FPU
+    |  lfd f0, 0(TMP1)
+    |  stfdx f0, BASE, RA
+    |.else
+    |  lwz TMP2, 0(TMP1)
+    |  lwz TMP3, 4(TMP1)
+    |  stwux TMP2, RA, BASE
+    |  stw TMP3, 4(RA)
+    |.endif
+    |  ins_next2
+    break;
+  case BC_USETV:
+    |  // RA = uvnum*8, RD = src*8
+    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+    |    srwi RA, RA, 1
+    |    addi RA, RA, offsetof(GCfuncL, uvptr)
+    |.if FPU
+    |   lfdux f0, RD, BASE
+    |.else
+    |   lwzux CARG1, RD, BASE
+    |   lwz CARG3, 4(RD)
+    |.endif
+    |  lwzx UPVAL:RB, LFUNC:RB, RA
+    |  lbz TMP3, UPVAL:RB->marked
+    |   lwz CARG2, UPVAL:RB->v
+    |  andix. TMP3, TMP3, LJ_GC_BLACK	// isblack(uv)
+    |    lbz TMP0, UPVAL:RB->closed
+    |   lwz TMP2, 0(RD)
+    |.if FPU
+    |   stfd f0, 0(CARG2)
+    |.else
+    |   stw CARG1, 0(CARG2)
+    |   stw CARG3, 4(CARG2)
+    |.endif
+    |    cmplwi cr1, TMP0, 0
+    |   lwz TMP1, 4(RD)
+    |  cror 4*cr0+eq, 4*cr0+eq, 4*cr1+eq
+    |   subi TMP2, TMP2, (LJ_TNUMX+1)
+    |  bne >2				// Upvalue is closed and black?
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if new value is collectable.
+    |  cmplwi TMP2, LJ_TISGCV - (LJ_TNUMX+1)
+    |  bge <1				// tvisgcv(v)
+    |  lbz TMP3, GCOBJ:TMP1->gch.marked
+    |  andix. TMP3, TMP3, LJ_GC_WHITES	// iswhite(v)
+    |   la CARG1, GG_DISP2G(DISPATCH)
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  beq <1
+    |  bl extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |  b <1
+    break;
+  case BC_USETS:
+    |  // RA = uvnum*8, RD = str_const*8 (~)
+    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+    |   srwi TMP1, RD, 1
+    |    srwi RA, RA, 1
+    |   subfic TMP1, TMP1, -4
+    |    addi RA, RA, offsetof(GCfuncL, uvptr)
+    |   lwzx STR:TMP1, KBASE, TMP1	// KBASE-4-str_const*4
+    |  lwzx UPVAL:RB, LFUNC:RB, RA
+    |  lbz TMP3, UPVAL:RB->marked
+    |   lwz CARG2, UPVAL:RB->v
+    |  andix. TMP3, TMP3, LJ_GC_BLACK	// isblack(uv)
+    |   lbz TMP3, STR:TMP1->marked
+    |   lbz TMP2, UPVAL:RB->closed
+    |   li TMP0, LJ_TSTR
+    |   stw STR:TMP1, 4(CARG2)
+    |   stw TMP0, 0(CARG2)
+    |  bne >2
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if string is white and ensure upvalue is closed.
+    |  andix. TMP3, TMP3, LJ_GC_WHITES	// iswhite(str)
+    |   cmplwi cr1, TMP2, 0
+    |  cror 4*cr0+eq, 4*cr0+eq, 4*cr1+eq
+    |   la CARG1, GG_DISP2G(DISPATCH)
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  beq <1
+    |  bl extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |  b <1
+    break;
+  case BC_USETN:
+    |  // RA = uvnum*8, RD = num_const*8
+    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+    |   srwi RA, RA, 1
+    |   addi RA, RA, offsetof(GCfuncL, uvptr)
+    |.if FPU
+    |    lfdx f0, KBASE, RD
+    |.else
+    |    lwzux TMP2, RD, KBASE
+    |    lwz TMP3, 4(RD)
+    |.endif
+    |  lwzx UPVAL:RB, LFUNC:RB, RA
+    |  ins_next1
+    |  lwz TMP1, UPVAL:RB->v
+    |.if FPU
+    |  stfd f0, 0(TMP1)
+    |.else
+    |  stw TMP2, 0(TMP1)
+    |  stw TMP3, 4(TMP1)
+    |.endif
+    |  ins_next2
+    break;
+  case BC_USETP:
+    |  // RA = uvnum*8, RD = primitive_type*8 (~)
+    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
+    |   srwi RA, RA, 1
+    |    srwi TMP0, RD, 3
+    |   addi RA, RA, offsetof(GCfuncL, uvptr)
+    |    not TMP0, TMP0
+    |  lwzx UPVAL:RB, LFUNC:RB, RA
+    |  ins_next1
+    |  lwz TMP1, UPVAL:RB->v
+    |  stw TMP0, 0(TMP1)
+    |  ins_next2
+    break;
+
+  case BC_UCLO:
+    |  // RA = level*8, RD = target
+    |  lwz TMP1, L->openupval
+    |  branch_RD			// Do this first since RD is not saved.
+    |   stp BASE, L->base
+    |  cmplwi TMP1, 0
+    |   mr CARG1, L
+    |  beq >1
+    |   add CARG2, BASE, RA
+    |  bl extern lj_func_closeuv	// (lua_State *L, TValue *level)
+    |  lp BASE, L->base
+    |1:
+    |  ins_next
+    break;
+
+  case BC_FNEW:
+    |  // RA = dst*8, RD = proto_const*8 (~) (holding function prototype)
+    |  srwi TMP1, RD, 1
+    |   stp BASE, L->base
+    |  subfic TMP1, TMP1, -4
+    |   stw PC, SAVE_PC
+    |  lwzx CARG2, KBASE, TMP1		// KBASE-4-tab_const*4
+    |   mr CARG1, L
+    |  lwz CARG3, FRAME_FUNC(BASE)
+    |  // (lua_State *L, GCproto *pt, GCfuncL *parent)
+    |  bl extern lj_func_newL_gc
+    |  // Returns GCfuncL *.
+    |  lp BASE, L->base
+    |   li TMP0, LJ_TFUNC
+    |  stwux TMP0, RA, BASE
+    |  stw LFUNC:CRET1, 4(RA)
+    |  ins_next
+    break;
+
+  /* -- Table ops --------------------------------------------------------- */
+
+  case BC_TNEW:
+  case BC_TDUP:
+    |  // RA = dst*8, RD = (hbits|asize)*8 | tab_const*8 (~)
+    |  lwz TMP0, DISPATCH_GL(gc.total)(DISPATCH)
+    |   mr CARG1, L
+    |  lwz TMP1, DISPATCH_GL(gc.threshold)(DISPATCH)
+    |   stp BASE, L->base
+    |  cmplw TMP0, TMP1
+    |   stw PC, SAVE_PC
+    |  bge >5
+    |1:
+    if (op == BC_TNEW) {
+      |  rlwinm CARG2, RD, 29, 21, 31
+      |  rlwinm CARG3, RD, 18, 27, 31
+      |  cmpwi CARG2, 0x7ff; beq >3
+      |2:
+      |  bl extern lj_tab_new  // (lua_State *L, int32_t asize, uint32_t hbits)
+      |  // Returns Table *.
+    } else {
+      |  srwi TMP1, RD, 1
+      |  subfic TMP1, TMP1, -4
+      |  lwzx CARG2, KBASE, TMP1		// KBASE-4-tab_const*4
+      |  bl extern lj_tab_dup  // (lua_State *L, Table *kt)
+      |  // Returns Table *.
+    }
+    |  lp BASE, L->base
+    |   li TMP0, LJ_TTAB
+    |  stwux TMP0, RA, BASE
+    |  stw TAB:CRET1, 4(RA)
+    |  ins_next
+    if (op == BC_TNEW) {
+      |3:
+      |  li CARG2, 0x801
+      |  b <2
+    }
+    |5:
+    |  mr SAVE0, RD
+    |  bl extern lj_gc_step_fixtop  // (lua_State *L)
+    |  mr RD, SAVE0
+    |  mr CARG1, L
+    |  b <1
+    break;
+
+  case BC_GGET:
+    |  // RA = dst*8, RD = str_const*8 (~)
+  case BC_GSET:
+    |  // RA = src*8, RD = str_const*8 (~)
+    |  lwz LFUNC:TMP2, FRAME_FUNC(BASE)
+    |   srwi TMP1, RD, 1
+    |  lwz TAB:RB, LFUNC:TMP2->env
+    |   subfic TMP1, TMP1, -4
+    |   lwzx STR:RC, KBASE, TMP1	// KBASE-4-str_const*4
+    if (op == BC_GGET) {
+      |  b ->BC_TGETS_Z
+    } else {
+      |  b ->BC_TSETS_Z
+    }
+    break;
+
+  case BC_TGETV:
+    |  // RA = dst*8, RB = table*8, RC = key*8
+    |  lwzux CARG1, RB, BASE
+    |  lwzux CARG2, RC, BASE
+    |   lwz TAB:RB, 4(RB)
+    |.if DUALNUM
+    |   lwz RC, 4(RC)
+    |.else
+    |   lfd f0, 0(RC)
+    |.endif
+    |  checktab CARG1
+    |   checknum cr1, CARG2
+    |  bne ->vmeta_tgetv
+    |.if DUALNUM
+    |  lwz TMP0, TAB:RB->asize
+    |   bne cr1, >5
+    |   lwz TMP1, TAB:RB->array
+    |  cmplw TMP0, RC
+    |   slwi TMP2, RC, 3
+    |.else
+    |   bge cr1, >5
+    |  // Convert number key to integer, check for integerness and range.
+    |  fctiwz f1, f0
+    |    fadd f2, f0, TOBIT
+    |  stfd f1, TMPD
+    |   lwz TMP0, TAB:RB->asize
+    |    fsub f2, f2, TOBIT
+    |  lwz TMP2, TMPD_LO
+    |   lwz TMP1, TAB:RB->array
+    |    fcmpu cr1, f0, f2
+    |  cmplw cr0, TMP0, TMP2
+    |  crand 4*cr0+gt, 4*cr0+gt, 4*cr1+eq
+    |   slwi TMP2, TMP2, 3
+    |.endif
+    |  ble ->vmeta_tgetv		// Integer key and in array part?
+    |  lwzx TMP0, TMP1, TMP2
+    |.if FPU
+    |   lfdx f14, TMP1, TMP2
+    |.else
+    |   lwzux SAVE0, TMP1, TMP2
+    |   lwz SAVE1, 4(TMP1)
+    |.endif
+    |  checknil TMP0; beq >2
+    |1:
+    |  ins_next1
+    |.if FPU
+    |   stfdx f14, BASE, RA
+    |.else
+    |   stwux SAVE0, RA, BASE
+    |   stw SAVE1, 4(RA)
+    |.endif
+    |  ins_next2
+    |
+    |2:  // Check for __index if table value is nil.
+    |  lwz TAB:TMP2, TAB:RB->metatable
+    |  cmplwi TAB:TMP2, 0
+    |  beq <1				// No metatable: done.
+    |  lbz TMP0, TAB:TMP2->nomm
+    |  andix. TMP0, TMP0, 1<<MM_index
+    |  bne <1				// 'no __index' flag set: done.
+    |  b ->vmeta_tgetv
+    |
+    |5:
+    |  checkstr CARG2; bne ->vmeta_tgetv
+    |.if not DUALNUM
+    |  lwz STR:RC, 4(RC)
+    |.endif
+    |  b ->BC_TGETS_Z			// String key?
+    break;
+  case BC_TGETS:
+    |  // RA = dst*8, RB = table*8, RC = str_const*8 (~)
+    |  lwzux CARG1, RB, BASE
+    |   srwi TMP1, RC, 1
+    |    lwz TAB:RB, 4(RB)
+    |   subfic TMP1, TMP1, -4
+    |  checktab CARG1
+    |   lwzx STR:RC, KBASE, TMP1	// KBASE-4-str_const*4
+    |  bne ->vmeta_tgets1
+    |->BC_TGETS_Z:
+    |  // TAB:RB = GCtab *, STR:RC = GCstr *, RA = dst*8
+    |  lwz TMP0, TAB:RB->hmask
+    |  lwz TMP1, STR:RC->sid
+    |  lwz NODE:TMP2, TAB:RB->node
+    |  and TMP1, TMP1, TMP0		// idx = str->sid & tab->hmask
+    |  slwi TMP0, TMP1, 5
+    |  slwi TMP1, TMP1, 3
+    |  sub TMP1, TMP0, TMP1
+    |  add NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+    |1:
+    |  lwz CARG1, NODE:TMP2->key
+    |   lwz TMP0, 4+offsetof(Node, key)(NODE:TMP2)
+    |    lwz CARG2, NODE:TMP2->val
+    |     lwz TMP1, 4+offsetof(Node, val)(NODE:TMP2)
+    |  checkstr CARG1; bne >4
+    |   cmpw TMP0, STR:RC; bne >4
+    |    checknil CARG2; beq >5		// Key found, but nil value?
+    |3:
+    |    stwux CARG2, RA, BASE
+    |     stw TMP1, 4(RA)
+    |  ins_next
+    |
+    |4:  // Follow hash chain.
+    |  lwz NODE:TMP2, NODE:TMP2->next
+    |  cmplwi NODE:TMP2, 0
+    |  bne <1
+    |  // End of hash chain: key not found, nil result.
+    |   li CARG2, LJ_TNIL
+    |
+    |5:  // Check for __index if table value is nil.
+    |  lwz TAB:TMP2, TAB:RB->metatable
+    |  cmplwi TAB:TMP2, 0
+    |  beq <3				// No metatable: done.
+    |  lbz TMP0, TAB:TMP2->nomm
+    |  andix. TMP0, TMP0, 1<<MM_index
+    |  bne <3				// 'no __index' flag set: done.
+    |  b ->vmeta_tgets
+    break;
+  case BC_TGETB:
+    |  // RA = dst*8, RB = table*8, RC = index*8
+    |  lwzux CARG1, RB, BASE
+    |   srwi TMP0, RC, 3
+    |   lwz TAB:RB, 4(RB)
+    |  checktab CARG1; bne ->vmeta_tgetb
+    |  lwz TMP1, TAB:RB->asize
+    |   lwz TMP2, TAB:RB->array
+    |  cmplw TMP0, TMP1; bge ->vmeta_tgetb
+    |.if FPU
+    |  lwzx TMP1, TMP2, RC
+    |   lfdx f0, TMP2, RC
+    |.else
+    |  lwzux TMP1, TMP2, RC
+    |   lwz TMP3, 4(TMP2)
+    |.endif
+    |  checknil TMP1; beq >5
+    |1:
+    |  ins_next1
+    |.if FPU
+    |   stfdx f0, BASE, RA
+    |.else
+    |   stwux TMP1, RA, BASE
+    |   stw TMP3, 4(RA)
+    |.endif
+    |  ins_next2
+    |
+    |5:  // Check for __index if table value is nil.
+    |  lwz TAB:TMP2, TAB:RB->metatable
+    |  cmplwi TAB:TMP2, 0
+    |  beq <1				// No metatable: done.
+    |  lbz TMP2, TAB:TMP2->nomm
+    |  andix. TMP2, TMP2, 1<<MM_index
+    |  bne <1				// 'no __index' flag set: done.
+    |  b ->vmeta_tgetb			// Caveat: preserve TMP0!
+    break;
+  case BC_TGETR:
+    |  // RA = dst*8, RB = table*8, RC = key*8
+    |  add RB, BASE, RB
+    |  lwz TAB:CARG1, 4(RB)
+    |.if DUALNUM
+    |  add RC, BASE, RC
+    |  lwz TMP0, TAB:CARG1->asize
+    |  lwz CARG2, 4(RC)
+    |   lwz TMP1, TAB:CARG1->array
+    |.else
+    |  lfdx f0, BASE, RC
+    |  lwz TMP0, TAB:CARG1->asize
+    |  toint CARG2, f0
+    |   lwz TMP1, TAB:CARG1->array
+    |.endif
+    |  cmplw TMP0, CARG2
+    |   slwi TMP2, CARG2, 3
+    |  ble ->vmeta_tgetr		// In array part?
+    |.if FPU
+    |   lfdx f14, TMP1, TMP2
+    |.else
+    |   lwzux SAVE0, TMP2, TMP1
+    |   lwz SAVE1, 4(TMP2)
+    |.endif
+    |->BC_TGETR_Z:
+    |  ins_next1
+    |.if FPU
+    |   stfdx f14, BASE, RA
+    |.else
+    |   stwux SAVE0, RA, BASE
+    |   stw SAVE1, 4(RA)
+    |.endif
+    |  ins_next2
+    break;
+
+  case BC_TSETV:
+    |  // RA = src*8, RB = table*8, RC = key*8
+    |  lwzux CARG1, RB, BASE
+    |  lwzux CARG2, RC, BASE
+    |   lwz TAB:RB, 4(RB)
+    |.if DUALNUM
+    |   lwz RC, 4(RC)
+    |.else
+    |   lfd f0, 0(RC)
+    |.endif
+    |  checktab CARG1
+    |   checknum cr1, CARG2
+    |  bne ->vmeta_tsetv
+    |.if DUALNUM
+    |  lwz TMP0, TAB:RB->asize
+    |   bne cr1, >5
+    |   lwz TMP1, TAB:RB->array
+    |  cmplw TMP0, RC
+    |   slwi TMP0, RC, 3
+    |.else
+    |   bge cr1, >5
+    |  // Convert number key to integer, check for integerness and range.
+    |  fctiwz f1, f0
+    |    fadd f2, f0, TOBIT
+    |  stfd f1, TMPD
+    |   lwz TMP0, TAB:RB->asize
+    |    fsub f2, f2, TOBIT
+    |  lwz TMP2, TMPD_LO
+    |   lwz TMP1, TAB:RB->array
+    |    fcmpu cr1, f0, f2
+    |  cmplw cr0, TMP0, TMP2
+    |  crand 4*cr0+gt, 4*cr0+gt, 4*cr1+eq
+    |   slwi TMP0, TMP2, 3
+    |.endif
+    |  ble ->vmeta_tsetv		// Integer key and in array part?
+    |   lwzx TMP2, TMP1, TMP0
+    |  lbz TMP3, TAB:RB->marked
+    |.if FPU
+    |    lfdx f14, BASE, RA
+    |.else
+    |    add SAVE1, BASE, RA
+    |    lwz SAVE0, 0(SAVE1)
+    |    lwz SAVE1, 4(SAVE1)
+    |.endif
+    |   checknil TMP2; beq >3
+    |1:
+    |  andix. TMP2, TMP3, LJ_GC_BLACK	// isblack(table)
+    |.if FPU
+    |    stfdx f14, TMP1, TMP0
+    |.else
+    |    stwux SAVE0, TMP1, TMP0
+    |    stw SAVE1, 4(TMP1)
+    |.endif
+    |  bne >7
+    |2:
+    |  ins_next
+    |
+    |3:  // Check for __newindex if previous value is nil.
+    |  lwz TAB:TMP2, TAB:RB->metatable
+    |  cmplwi TAB:TMP2, 0
+    |  beq <1				// No metatable: done.
+    |  lbz TMP2, TAB:TMP2->nomm
+    |  andix. TMP2, TMP2, 1<<MM_newindex
+    |  bne <1				// 'no __newindex' flag set: done.
+    |  b ->vmeta_tsetv
+    |
+    |5:
+    |  checkstr CARG2; bne ->vmeta_tsetv
+    |.if not DUALNUM
+    |  lwz STR:RC, 4(RC)
+    |.endif
+    |  b ->BC_TSETS_Z			// String key?
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0
+    |  b <2
+    break;
+  case BC_TSETS:
+    |  // RA = src*8, RB = table*8, RC = str_const*8 (~)
+    |  lwzux CARG1, RB, BASE
+    |   srwi TMP1, RC, 1
+    |    lwz TAB:RB, 4(RB)
+    |   subfic TMP1, TMP1, -4
+    |  checktab CARG1
+    |   lwzx STR:RC, KBASE, TMP1	// KBASE-4-str_const*4
+    |  bne ->vmeta_tsets1
+    |->BC_TSETS_Z:
+    |  // TAB:RB = GCtab *, STR:RC = GCstr *, RA = src*8
+    |  lwz TMP0, TAB:RB->hmask
+    |  lwz TMP1, STR:RC->sid
+    |  lwz NODE:TMP2, TAB:RB->node
+    |    stb ZERO, TAB:RB->nomm		// Clear metamethod cache.
+    |  and TMP1, TMP1, TMP0		// idx = str->sid & tab->hmask
+    |.if FPU
+    |    lfdx f14, BASE, RA
+    |.else
+    |    add CARG2, BASE, RA
+    |    lwz SAVE0, 0(CARG2)
+    |    lwz SAVE1, 4(CARG2)
+    |.endif
+    |  slwi TMP0, TMP1, 5
+    |  slwi TMP1, TMP1, 3
+    |  sub TMP1, TMP0, TMP1
+    |    lbz TMP3, TAB:RB->marked
+    |  add NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
+    |1:
+    |  lwz CARG1, NODE:TMP2->key
+    |   lwz TMP0, 4+offsetof(Node, key)(NODE:TMP2)
+    |    lwz CARG2, NODE:TMP2->val
+    |     lwz NODE:TMP1, NODE:TMP2->next
+    |  checkstr CARG1; bne >5
+    |   cmpw TMP0, STR:RC; bne >5
+    |    checknil CARG2; beq >4		// Key found, but nil value?
+    |2:
+    |  andix. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
+    |.if FPU
+    |    stfd f14, NODE:TMP2->val
+    |.else
+    |    stw SAVE0, NODE:TMP2->val.u32.hi
+    |    stw SAVE1, NODE:TMP2->val.u32.lo
+    |.endif
+    |  bne >7
+    |3:
+    |  ins_next
+    |
+    |4:  // Check for __newindex if previous value is nil.
+    |  lwz TAB:TMP1, TAB:RB->metatable
+    |  cmplwi TAB:TMP1, 0
+    |  beq <2				// No metatable: done.
+    |  lbz TMP0, TAB:TMP1->nomm
+    |  andix. TMP0, TMP0, 1<<MM_newindex
+    |  bne <2				// 'no __newindex' flag set: done.
+    |  b ->vmeta_tsets
+    |
+    |5:  // Follow hash chain.
+    |  cmplwi NODE:TMP1, 0
+    |   mr NODE:TMP2, NODE:TMP1
+    |  bne <1
+    |  // End of hash chain: key not found, add a new one.
+    |
+    |  // But check for __newindex first.
+    |  lwz TAB:TMP1, TAB:RB->metatable
+    |   la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
+    |   stw PC, SAVE_PC
+    |   mr CARG1, L
+    |  cmplwi TAB:TMP1, 0
+    |   stp BASE, L->base
+    |  beq >6				// No metatable: continue.
+    |  lbz TMP0, TAB:TMP1->nomm
+    |  andix. TMP0, TMP0, 1<<MM_newindex
+    |  beq ->vmeta_tsets		// 'no __newindex' flag NOT set: check.
+    |6:
+    |  li TMP0, LJ_TSTR
+    |   stw STR:RC, 4(CARG3)
+    |   mr CARG2, TAB:RB
+    |  stw TMP0, 0(CARG3)
+    |  bl extern lj_tab_newkey		// (lua_State *L, GCtab *t, TValue *k)
+    |  // Returns TValue *.
+    |  lp BASE, L->base
+    |.if FPU
+    |  stfd f14, 0(CRET1)
+    |.else
+    |  stw SAVE0, 0(CRET1)
+    |  stw SAVE1, 4(CRET1)
+    |.endif
+    |  b <3				// No 2nd write barrier needed.
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0
+    |  b <3
+    break;
+  case BC_TSETB:
+    |  // RA = src*8, RB = table*8, RC = index*8
+    |  lwzux CARG1, RB, BASE
+    |   srwi TMP0, RC, 3
+    |   lwz TAB:RB, 4(RB)
+    |  checktab CARG1; bne ->vmeta_tsetb
+    |  lwz TMP1, TAB:RB->asize
+    |   lwz TMP2, TAB:RB->array
+    |    lbz TMP3, TAB:RB->marked
+    |  cmplw TMP0, TMP1
+    |.if FPU
+    |   lfdx f14, BASE, RA
+    |.else
+    |   add CARG2, BASE, RA
+    |   lwz SAVE0, 0(CARG2)
+    |   lwz SAVE1, 4(CARG2)
+    |.endif
+    |  bge ->vmeta_tsetb
+    |  lwzx TMP1, TMP2, RC
+    |  checknil TMP1; beq >5
+    |1:
+    |  andix. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
+    |.if FPU
+    |   stfdx f14, TMP2, RC
+    |.else
+    |   stwux SAVE0, RC, TMP2
+    |   stw SAVE1, 4(RC)
+    |.endif
+    |  bne >7
+    |2:
+    |  ins_next
+    |
+    |5:  // Check for __newindex if previous value is nil.
+    |  lwz TAB:TMP1, TAB:RB->metatable
+    |  cmplwi TAB:TMP1, 0
+    |  beq <1				// No metatable: done.
+    |  lbz TMP1, TAB:TMP1->nomm
+    |  andix. TMP1, TMP1, 1<<MM_newindex
+    |  bne <1				// 'no __newindex' flag set: done.
+    |  b ->vmeta_tsetb			// Caveat: preserve TMP0!
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMP3, TMP0
+    |  b <2
+    break;
+  case BC_TSETR:
+    |  // RA = dst*8, RB = table*8, RC = key*8
+    |  add RB, BASE, RB
+    |  lwz TAB:CARG2, 4(RB)
+    |.if DUALNUM
+    |  add RC, BASE, RC
+    |    lbz TMP3, TAB:CARG2->marked
+    |  lwz TMP0, TAB:CARG2->asize
+    |  lwz CARG3, 4(RC)
+    |   lwz TMP1, TAB:CARG2->array
+    |.else
+    |  lfdx f0, BASE, RC
+    |    lbz TMP3, TAB:CARG2->marked
+    |  lwz TMP0, TAB:CARG2->asize
+    |  toint CARG3, f0
+    |   lwz TMP1, TAB:CARG2->array
+    |.endif
+    |  andix. TMP2, TMP3, LJ_GC_BLACK	// isblack(table)
+    |  bne >7
+    |2:
+    |  cmplw TMP0, CARG3
+    |   slwi TMP2, CARG3, 3
+    |.if FPU
+    |   lfdx f14, BASE, RA
+    |.else
+    |  lwzux SAVE0, RA, BASE
+    |  lwz SAVE1, 4(RA)
+    |.endif
+    |  ble ->vmeta_tsetr		// In array part?
+    |  ins_next1
+    |.if FPU
+    |   stfdx f14, TMP1, TMP2
+    |.else
+    |   stwux SAVE0, TMP1, TMP2
+    |   stw SAVE1, 4(TMP1)
+    |.endif
+    |  ins_next2
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, TMP3, TMP2
+    |  b <2
+    break;
+
+
+  case BC_TSETM:
+    |  // RA = base*8 (table at base-1), RD = num_const*8 (start index)
+    |  add RA, BASE, RA
+    |1:
+    |   add TMP3, KBASE, RD
+    |  lwz TAB:CARG2, -4(RA)		// Guaranteed to be a table.
+    |    addic. TMP0, MULTRES, -8
+    |   lwz TMP3, 4(TMP3)		// Integer constant is in lo-word.
+    |    srwi CARG3, TMP0, 3
+    |    beq >4				// Nothing to copy?
+    |  add CARG3, CARG3, TMP3
+    |  lwz TMP2, TAB:CARG2->asize
+    |   slwi TMP1, TMP3, 3
+    |    lbz TMP3, TAB:CARG2->marked
+    |  cmplw CARG3, TMP2
+    |   add TMP2, RA, TMP0
+    |   lwz TMP0, TAB:CARG2->array
+    |  bgt >5
+    |   add TMP1, TMP1, TMP0
+    |    andix. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
+    |3:  // Copy result slots to table.
+    |.if FPU
+    |   lfd f0, 0(RA)
+    |.else
+    |   lwz SAVE0, 0(RA)
+    |   lwz SAVE1, 4(RA)
+    |.endif
+    |  addi RA, RA, 8
+    |  cmpw cr1, RA, TMP2
+    |.if FPU
+    |   stfd f0, 0(TMP1)
+    |.else
+    |   stw SAVE0, 0(TMP1)
+    |   stw SAVE1, 4(TMP1)
+    |.endif
+    |    addi TMP1, TMP1, 8
+    |  blt cr1, <3
+    |  bne >7
+    |4:
+    |  ins_next
+    |
+    |5:  // Need to resize array part.
+    |   stp BASE, L->base
+    |  mr CARG1, L
+    |   stw PC, SAVE_PC
+    |  mr SAVE0, RD
+    |  bl extern lj_tab_reasize		// (lua_State *L, GCtab *t, int nasize)
+    |  // Must not reallocate the stack.
+    |  mr RD, SAVE0
+    |  b <1
+    |
+    |7:  // Possible table write barrier for any value. Skip valiswhite check.
+    |  barrierback TAB:CARG2, TMP3, TMP0
+    |  b <4
+    break;
+
+  /* -- Calls and vararg handling ----------------------------------------- */
+
+  case BC_CALLM:
+    |  // RA = base*8, (RB = (nresults+1)*8,) RC = extra_nargs*8
+    |  add NARGS8:RC, NARGS8:RC, MULTRES
+    |  // Fall through. Assumes BC_CALL follows.
+    break;
+  case BC_CALL:
+    |  // RA = base*8, (RB = (nresults+1)*8,) RC = (nargs+1)*8
+    |  mr TMP2, BASE
+    |  lwzux TMP0, BASE, RA
+    |   lwz LFUNC:RB, 4(BASE)
+    |    subi NARGS8:RC, NARGS8:RC, 8
+    |   addi BASE, BASE, 8
+    |  checkfunc TMP0; bne ->vmeta_call
+    |  ins_call
+    break;
+
+  case BC_CALLMT:
+    |  // RA = base*8, (RB = 0,) RC = extra_nargs*8
+    |  add NARGS8:RC, NARGS8:RC, MULTRES
+    |  // Fall through. Assumes BC_CALLT follows.
+    break;
+  case BC_CALLT:
+    |  // RA = base*8, (RB = 0,) RC = (nargs+1)*8
+    |  lwzux TMP0, RA, BASE
+    |   lwz LFUNC:RB, 4(RA)
+    |    subi NARGS8:RC, NARGS8:RC, 8
+    |    lwz TMP1, FRAME_PC(BASE)
+    |  checkfunc TMP0
+    |   addi RA, RA, 8
+    |  bne ->vmeta_callt
+    |->BC_CALLT_Z:
+    |  andix. TMP0, TMP1, FRAME_TYPE	// Caveat: preserve cr0 until the crand.
+    |   lbz TMP3, LFUNC:RB->ffid
+    |    xori TMP2, TMP1, FRAME_VARG
+    |    cmplwi cr1, NARGS8:RC, 0
+    |  bne >7
+    |1:
+    |  stw LFUNC:RB, FRAME_FUNC(BASE)	// Copy function down, but keep PC.
+    |  li TMP2, 0
+    |   cmplwi cr7, TMP3, 1		// (> FF_C) Calling a fast function?
+    |    beq cr1, >3
+    |2:
+    |  addi TMP3, TMP2, 8
+    |.if FPU
+    |   lfdx f0, RA, TMP2
+    |.else
+    |   add CARG3, RA, TMP2
+    |   lwz CARG1, 0(CARG3)
+    |   lwz CARG2, 4(CARG3)
+    |.endif
+    |  cmplw cr1, TMP3, NARGS8:RC
+    |.if FPU
+    |   stfdx f0, BASE, TMP2
+    |.else
+    |   stwux CARG1, TMP2, BASE
+    |   stw CARG2, 4(TMP2)
+    |.endif
+    |  mr TMP2, TMP3
+    |  bne cr1, <2
+    |3:
+    |  crand 4*cr0+eq, 4*cr0+eq, 4*cr7+gt
+    |  beq >5
+    |4:
+    |  ins_callt
+    |
+    |5:  // Tailcall to a fast function with a Lua frame below.
+    |  lwz INS, -4(TMP1)
+    |  decode_RA8 RA, INS
+    |  sub TMP1, BASE, RA
+    |  lwz LFUNC:TMP1, FRAME_FUNC-8(TMP1)
+    |  lwz TMP1, LFUNC:TMP1->pc
+    |  lwz KBASE, PC2PROTO(k)(TMP1)	// Need to prepare KBASE.
+    |  b <4
+    |
+    |7:  // Tailcall from a vararg function.
+    |  andix. TMP0, TMP2, FRAME_TYPEP
+    |  bne <1				// Vararg frame below?
+    |  sub BASE, BASE, TMP2		// Relocate BASE down.
+    |  lwz TMP1, FRAME_PC(BASE)
+    |  andix. TMP0, TMP1, FRAME_TYPE
+    |  b <1
+    break;
+
+  case BC_ITERC:
+    |  // RA = base*8, (RB = (nresults+1)*8, RC = (nargs+1)*8 ((2+1)*8))
+    |  mr TMP2, BASE
+    |  add BASE, BASE, RA
+    |  lwz TMP1, -24(BASE)
+    |   lwz LFUNC:RB, -20(BASE)
+    |.if FPU
+    |    lfd f1, -8(BASE)
+    |    lfd f0, -16(BASE)
+    |.else
+    |    lwz CARG1, -8(BASE)
+    |    lwz CARG2, -4(BASE)
+    |    lwz CARG3, -16(BASE)
+    |    lwz CARG4, -12(BASE)
+    |.endif
+    |  stw TMP1, 0(BASE)		// Copy callable.
+    |   stw LFUNC:RB, 4(BASE)
+    |  checkfunc TMP1
+    |     li NARGS8:RC, 16		// Iterators get 2 arguments.
+    |.if FPU
+    |    stfd f1, 16(BASE)		// Copy control var.
+    |    stfdu f0, 8(BASE)		// Copy state.
+    |.else
+    |    stw CARG1, 16(BASE)		// Copy control var.
+    |    stw CARG2, 20(BASE)
+    |    stwu CARG3, 8(BASE)		// Copy state.
+    |    stw CARG4, 4(BASE)
+    |.endif
+    |  bne ->vmeta_call
+    |  ins_call
+    break;
+
+  case BC_ITERN:
+    |  // RA = base*8, (RB = (nresults+1)*8, RC = (nargs+1)*8 (2+1)*8)
+    |.if JIT
+    |  // NYI on big-endian
+    |.endif
+    |->vm_IITERN:
+    |  add RA, BASE, RA
+    |  lwz TAB:RB, -12(RA)
+    |  lwz RC, -4(RA)			// Get index from control var.
+    |  lwz TMP0, TAB:RB->asize
+    |  lwz TMP1, TAB:RB->array
+    |   addi PC, PC, 4
+    |1:  // Traverse array part.
+    |  cmplw RC, TMP0
+    |   slwi TMP3, RC, 3
+    |  bge >5				// Index points after array part?
+    |  lwzx TMP2, TMP1, TMP3
+    |.if FPU
+    |   lfdx f0, TMP1, TMP3
+    |.else
+    |   lwzux CARG1, TMP3, TMP1
+    |   lwz CARG2, 4(TMP3)
+    |.endif
+    |  checknil TMP2
+    |     lwz INS, -4(PC)
+    |  beq >4
+    |.if DUALNUM
+    |   stw RC, 4(RA)
+    |   stw TISNUM, 0(RA)
+    |.else
+    |   tonum_u f1, RC
+    |.endif
+    |    addi RC, RC, 1
+    |     addis TMP3, PC, -(BCBIAS_J*4 >> 16)
+    |.if FPU
+    |  stfd f0, 8(RA)
+    |.else
+    |  stw CARG1, 8(RA)
+    |  stw CARG2, 12(RA)
+    |.endif
+    |     decode_RD4 TMP1, INS
+    |    stw RC, -4(RA)			// Update control var.
+    |     add PC, TMP1, TMP3
+    |.if not DUALNUM
+    |   stfd f1, 0(RA)
+    |.endif
+    |3:
+    |  ins_next
+    |
+    |4:  // Skip holes in array part.
+    |  addi RC, RC, 1
+    |  b <1
+    |
+    |5:  // Traverse hash part.
+    |  lwz TMP1, TAB:RB->hmask
+    |  sub RC, RC, TMP0
+    |   lwz TMP2, TAB:RB->node
+    |6:
+    |  cmplw RC, TMP1			// End of iteration? Branch to ITERL+1.
+    |   slwi TMP3, RC, 5
+    |  bgty <3
+    |   slwi RB, RC, 3
+    |   sub TMP3, TMP3, RB
+    |  lwzx RB, TMP2, TMP3
+    |.if FPU
+    |  lfdx f0, TMP2, TMP3
+    |.else
+    |  add CARG3, TMP2, TMP3
+    |  lwz CARG1, 0(CARG3)
+    |  lwz CARG2, 4(CARG3)
+    |.endif
+    |   add NODE:TMP3, TMP2, TMP3
+    |  checknil RB
+    |     lwz INS, -4(PC)
+    |  beq >7
+    |.if FPU
+    |   lfd f1, NODE:TMP3->key
+    |.else
+    |   lwz CARG3, NODE:TMP3->key.u32.hi
+    |   lwz CARG4, NODE:TMP3->key.u32.lo
+    |.endif
+    |     addis TMP2, PC, -(BCBIAS_J*4 >> 16)
+    |.if FPU
+    |  stfd f0, 8(RA)
+    |.else
+    |  stw CARG1, 8(RA)
+    |  stw CARG2, 12(RA)
+    |.endif
+    |    add RC, RC, TMP0
+    |     decode_RD4 TMP1, INS
+    |.if FPU
+    |   stfd f1, 0(RA)
+    |.else
+    |   stw CARG3, 0(RA)
+    |   stw CARG4, 4(RA)
+    |.endif
+    |    addi RC, RC, 1
+    |     add PC, TMP1, TMP2
+    |    stw RC, -4(RA)			// Update control var.
+    |  b <3
+    |
+    |7:  // Skip holes in hash part.
+    |  addi RC, RC, 1
+    |  b <6
+    break;
+
+  case BC_ISNEXT:
+    |  // RA = base*8, RD = target (points to ITERN)
+    |  add RA, BASE, RA
+    |  lwz TMP0, -24(RA)
+    |  lwz CFUNC:TMP1, -20(RA)
+    |   lwz TMP2, -16(RA)
+    |    lwz TMP3, -8(RA)
+    |   cmpwi cr0, TMP2, LJ_TTAB
+    |  cmpwi cr1, TMP0, LJ_TFUNC
+    |    cmpwi cr6, TMP3, LJ_TNIL
+    |  bne cr1, >5
+    |  lbz TMP1, CFUNC:TMP1->ffid
+    |   crand 4*cr0+eq, 4*cr0+eq, 4*cr6+eq
+    |  cmpwi cr7, TMP1, FF_next_N
+    |    srwi TMP0, RD, 1
+    |  crand 4*cr0+eq, 4*cr0+eq, 4*cr7+eq
+    |    add TMP3, PC, TMP0
+    |  bne cr0, >5
+    |  lus TMP1, (LJ_KEYINDEX >> 16)
+    |  ori TMP1, TMP1, (LJ_KEYINDEX & 0xffff)
+    |  stw ZERO, -4(RA)			// Initialize control var.
+    |  stw TMP1, -8(RA)
+    |    addis PC, TMP3, -(BCBIAS_J*4 >> 16)
+    |1:
+    |  ins_next
+    |5:  // Despecialize bytecode if any of the checks fail.
+    |  li TMP0, BC_JMP
+    |   li TMP1, BC_ITERC
+    |  stb TMP0, -1(PC)
+    |    addis PC, TMP3, -(BCBIAS_J*4 >> 16)
+    |  // NYI on big-endian: unpatch JLOOP.
+    |   stb TMP1, 3(PC)
+    |  b <1
+    break;
+
+  case BC_VARG:
+    |  // RA = base*8, RB = (nresults+1)*8, RC = numparams*8
+    |  lwz TMP0, FRAME_PC(BASE)
+    |  add RC, BASE, RC
+    |   add RA, BASE, RA
+    |  addi RC, RC, FRAME_VARG
+    |   add TMP2, RA, RB
+    |  subi TMP3, BASE, 8		// TMP3 = vtop
+    |  sub RC, RC, TMP0			// RC = vbase
+    |  // Note: RC may now be even _above_ BASE if nargs was < numparams.
+    |  cmplwi cr1, RB, 0
+    |.if PPE
+    |   sub TMP1, TMP3, RC
+    |   cmpwi TMP1, 0
+    |.else
+    |   sub. TMP1, TMP3, RC
+    |.endif
+    |  beq cr1, >5			// Copy all varargs?
+    |   subi TMP2, TMP2, 16
+    |   ble >2				// No vararg slots?
+    |1:  // Copy vararg slots to destination slots.
+    |.if FPU
+    |  lfd f0, 0(RC)
+    |.else
+    |  lwz CARG1, 0(RC)
+    |  lwz CARG2, 4(RC)
+    |.endif
+    |   addi RC, RC, 8
+    |.if FPU
+    |  stfd f0, 0(RA)
+    |.else
+    |  stw CARG1, 0(RA)
+    |  stw CARG2, 4(RA)
+    |.endif
+    |  cmplw RA, TMP2
+    |   cmplw cr1, RC, TMP3
+    |  bge >3				// All destination slots filled?
+    |    addi RA, RA, 8
+    |   blt cr1, <1			// More vararg slots?
+    |2:  // Fill up remainder with nil.
+    |  stw TISNIL, 0(RA)
+    |  cmplw RA, TMP2
+    |   addi RA, RA, 8
+    |  blt <2
+    |3:
+    |  ins_next
+    |
+    |5:  // Copy all varargs.
+    |  lwz TMP0, L->maxstack
+    |   li MULTRES, 8			// MULTRES = (0+1)*8
+    |  bley <3				// No vararg slots?
+    |  add TMP2, RA, TMP1
+    |  cmplw TMP2, TMP0
+    |   addi MULTRES, TMP1, 8
+    |  bgt >7
+    |6:
+    |.if FPU
+    |  lfd f0, 0(RC)
+    |.else
+    |  lwz CARG1, 0(RC)
+    |  lwz CARG2, 4(RC)
+    |.endif
+    |   addi RC, RC, 8
+    |.if FPU
+    |  stfd f0, 0(RA)
+    |.else
+    |  stw CARG1, 0(RA)
+    |  stw CARG2, 4(RA)
+    |.endif
+    |  cmplw RC, TMP3
+    |   addi RA, RA, 8
+    |  blt <6				// More vararg slots?
+    |  b <3
+    |
+    |7:  // Grow stack for varargs.
+    |  mr CARG1, L
+    |   stp RA, L->top
+    |  sub SAVE0, RC, BASE		// Need delta, because BASE may change.
+    |   stp BASE, L->base
+    |  sub RA, RA, BASE
+    |   stw PC, SAVE_PC
+    |  srwi CARG2, TMP1, 3
+    |  bl extern lj_state_growstack	// (lua_State *L, int n)
+    |  lp BASE, L->base
+    |  add RA, BASE, RA
+    |  add RC, BASE, SAVE0
+    |  subi TMP3, BASE, 8
+    |  b <6
+    break;
+
+  /* -- Returns ----------------------------------------------------------- */
+
+  case BC_RETM:
+    |  // RA = results*8, RD = extra_nresults*8
+    |  add RD, RD, MULTRES		// MULTRES >= 8, so RD >= 8.
+    |  // Fall through. Assumes BC_RET follows.
+    break;
+
+  case BC_RET:
+    |  // RA = results*8, RD = (nresults+1)*8
+    |  lwz PC, FRAME_PC(BASE)
+    |   add RA, BASE, RA
+    |    mr MULTRES, RD
+    |1:
+    |  andix. TMP0, PC, FRAME_TYPE
+    |   xori TMP1, PC, FRAME_VARG
+    |  bne ->BC_RETV_Z
+    |
+    |->BC_RET_Z:
+    |  // BASE = base, RA = resultptr, RD = (nresults+1)*8, PC = return
+    |   lwz INS, -4(PC)
+    |  cmpwi RD, 8
+    |   subi TMP2, BASE, 8
+    |   subi RC, RD, 8
+    |   decode_RB8 RB, INS
+    |  beq >3
+    |   li TMP1, 0
+    |2:
+    |  addi TMP3, TMP1, 8
+    |.if FPU
+    |   lfdx f0, RA, TMP1
+    |.else
+    |   add CARG3, RA, TMP1
+    |   lwz CARG1, 0(CARG3)
+    |   lwz CARG2, 4(CARG3)
+    |.endif
+    |  cmpw TMP3, RC
+    |.if FPU
+    |   stfdx f0, TMP2, TMP1
+    |.else
+    |   add CARG3, TMP2, TMP1
+    |   stw CARG1, 0(CARG3)
+    |   stw CARG2, 4(CARG3)
+    |.endif
+    |  beq >3
+    |  addi TMP1, TMP3, 8
+    |.if FPU
+    |   lfdx f1, RA, TMP3
+    |.else
+    |   add CARG3, RA, TMP3
+    |   lwz CARG1, 0(CARG3)
+    |   lwz CARG2, 4(CARG3)
+    |.endif
+    |  cmpw TMP1, RC
+    |.if FPU
+    |   stfdx f1, TMP2, TMP3
+    |.else
+    |   add CARG3, TMP2, TMP3
+    |   stw CARG1, 0(CARG3)
+    |   stw CARG2, 4(CARG3)
+    |.endif
+    |  bne <2
+    |3:
+    |5:
+    |  cmplw RB, RD
+    |   decode_RA8 RA, INS
+    |  bgt >6
+    |   sub BASE, TMP2, RA
+    |  lwz LFUNC:TMP1, FRAME_FUNC(BASE)
+    |  ins_next1
+    |  lwz TMP1, LFUNC:TMP1->pc
+    |  lwz KBASE, PC2PROTO(k)(TMP1)
+    |  ins_next2
+    |
+    |6:  // Fill up results with nil.
+    |  subi TMP1, RD, 8
+    |   addi RD, RD, 8
+    |  stwx TISNIL, TMP2, TMP1
+    |  b <5
+    |
+    |->BC_RETV_Z:  // Non-standard return case.
+    |  andix. TMP2, TMP1, FRAME_TYPEP
+    |  bne ->vm_return
+    |  // Return from vararg function: relocate BASE down.
+    |  sub BASE, BASE, TMP1
+    |  lwz PC, FRAME_PC(BASE)
+    |  b <1
+    break;
+
+  case BC_RET0: case BC_RET1:
+    |  // RA = results*8, RD = (nresults+1)*8
+    |  lwz PC, FRAME_PC(BASE)
+    |   add RA, BASE, RA
+    |    mr MULTRES, RD
+    |  andix. TMP0, PC, FRAME_TYPE
+    |   xori TMP1, PC, FRAME_VARG
+    |  bney ->BC_RETV_Z
+    |
+    |  lwz INS, -4(PC)
+    |   subi TMP2, BASE, 8
+    |  decode_RB8 RB, INS
+    if (op == BC_RET1) {
+      |.if FPU
+      |  lfd f0, 0(RA)
+      |  stfd f0, 0(TMP2)
+      |.else
+      |  lwz CARG1, 0(RA)
+      |  lwz CARG2, 4(RA)
+      |  stw CARG1, 0(TMP2)
+      |  stw CARG2, 4(TMP2)
+      |.endif
+    }
+    |5:
+    |  cmplw RB, RD
+    |   decode_RA8 RA, INS
+    |  bgt >6
+    |   sub BASE, TMP2, RA
+    |  lwz LFUNC:TMP1, FRAME_FUNC(BASE)
+    |  ins_next1
+    |  lwz TMP1, LFUNC:TMP1->pc
+    |  lwz KBASE, PC2PROTO(k)(TMP1)
+    |  ins_next2
+    |
+    |6:  // Fill up results with nil.
+    |  subi TMP1, RD, 8
+    |   addi RD, RD, 8
+    |  stwx TISNIL, TMP2, TMP1
+    |  b <5
+    break;
+
+  /* -- Loops and branches ------------------------------------------------ */
+
+  case BC_FORL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IFORL follows.
+    break;
+
+  case BC_JFORI:
+  case BC_JFORL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_FORI:
+  case BC_IFORL:
+    |  // RA = base*8, RD = target (after end of loop or start of loop)
+    vk = (op == BC_IFORL || op == BC_JFORL);
+    |.if DUALNUM
+    |  // Integer loop.
+    |  lwzux TMP1, RA, BASE
+    |   lwz CARG1, FORL_IDX*8+4(RA)
+    |  cmplw cr0, TMP1, TISNUM
+    if (vk) {
+      |   lwz CARG3, FORL_STEP*8+4(RA)
+      |  bne >9
+      |.if GPR64
+      |  // Need to check overflow for (a<<32) + (b<<32).
+      |  rldicr TMP0, CARG1, 32, 31
+      |  rldicr TMP2, CARG3, 32, 31
+      |  add CARG1, CARG1, CARG3
+      |  addo. TMP0, TMP0, TMP2
+      |.else
+      |  addo. CARG1, CARG1, CARG3
+      |.endif
+      |    cmpwi cr6, CARG3, 0
+      |   lwz CARG2, FORL_STOP*8+4(RA)
+      |  bso >6
+      |4:
+      |  stw CARG1, FORL_IDX*8+4(RA)
+    } else {
+      |  lwz SAVE0, FORL_STEP*8(RA)
+      |   lwz CARG3, FORL_STEP*8+4(RA)
+      |  lwz TMP2, FORL_STOP*8(RA)
+      |   lwz CARG2, FORL_STOP*8+4(RA)
+      |  cmplw cr7, SAVE0, TISNUM
+      |  cmplw cr1, TMP2, TISNUM
+      |  crand 4*cr0+eq, 4*cr0+eq, 4*cr7+eq
+      |  crand 4*cr0+eq, 4*cr0+eq, 4*cr1+eq
+      |    cmpwi cr6, CARG3, 0
+      |  bne >9
+    }
+    |    blt cr6, >5
+    |  cmpw CARG1, CARG2
+    |1:
+    |   stw TISNUM, FORL_EXT*8(RA)
+    if (op != BC_JFORL) {
+      |  srwi RD, RD, 1
+    }
+    |   stw CARG1, FORL_EXT*8+4(RA)
+    if (op != BC_JFORL) {
+      |  add RD, PC, RD
+    }
+    if (op == BC_FORI) {
+      |  bgt >3  // See FP loop below.
+    } else if (op == BC_JFORI) {
+      |  addis PC, RD, -(BCBIAS_J*4 >> 16)
+      |  bley >7
+    } else if (op == BC_IFORL) {
+      |  bgt >2
+      |  addis PC, RD, -(BCBIAS_J*4 >> 16)
+    } else {
+      |  bley =>BC_JLOOP
+    }
+    |2:
+    |  ins_next
+    |5:  // Invert check for negative step.
+    |  cmpw CARG2, CARG1
+    |  b <1
+    if (vk) {
+      |6:  // Potential overflow.
+      |  checkov TMP0, <4		// Ignore unrelated overflow.
+      |  b <2
+    }
+    |.endif
+    if (vk) {
+      |.if DUALNUM
+      |9:  // FP loop.
+      |.if FPU
+      |  lfd f1, FORL_IDX*8(RA)
+      |.else
+      |  lwz CARG1, FORL_IDX*8(RA)
+      |  lwz CARG2, FORL_IDX*8+4(RA)
+      |.endif
+      |.else
+      |  lfdux f1, RA, BASE
+      |.endif
+      |.if FPU
+      |  lfd f3, FORL_STEP*8(RA)
+      |  lfd f2, FORL_STOP*8(RA)
+      |  fadd f1, f1, f3
+      |  stfd f1, FORL_IDX*8(RA)
+      |.else
+      |  lwz CARG3, FORL_STEP*8(RA)
+      |  lwz CARG4, FORL_STEP*8+4(RA)
+      |  mr SAVE1, RD
+      |  blex __adddf3
+      |  mr RD, SAVE1
+      |  stw CRET1, FORL_IDX*8(RA)
+      |  stw CRET2, FORL_IDX*8+4(RA)
+      |  lwz CARG3, FORL_STOP*8(RA)
+      |  lwz CARG4, FORL_STOP*8+4(RA)
+      |.endif
+      |   lwz SAVE0, FORL_STEP*8(RA)
+    } else {
+      |.if DUALNUM
+      |9:  // FP loop.
+      |.else
+      |  lwzux TMP1, RA, BASE
+      |  lwz SAVE0, FORL_STEP*8(RA)
+      |  lwz TMP2, FORL_STOP*8(RA)
+      |  cmplw cr0, TMP1, TISNUM
+      |  cmplw cr7, SAVE0, TISNUM
+      |  cmplw cr1, TMP2, TISNUM
+      |.endif
+      |.if FPU
+      |   lfd f1, FORL_IDX*8(RA)
+      |.else
+      |   lwz CARG1, FORL_IDX*8(RA)
+      |   lwz CARG2, FORL_IDX*8+4(RA)
+      |.endif
+      |  crand 4*cr0+lt, 4*cr0+lt, 4*cr7+lt
+      |  crand 4*cr0+lt, 4*cr0+lt, 4*cr1+lt
+      |.if FPU
+      |   lfd f2, FORL_STOP*8(RA)
+      |.else
+      |   lwz CARG3, FORL_STOP*8(RA)
+      |   lwz CARG4, FORL_STOP*8+4(RA)
+      |.endif
+      |  bge ->vmeta_for
+    }
+    |  cmpwi cr6, SAVE0, 0
+    if (op != BC_JFORL) {
+      |  srwi RD, RD, 1
+    }
+    |.if FPU
+    |   stfd f1, FORL_EXT*8(RA)
+    |.else
+    |   stw CARG1, FORL_EXT*8(RA)
+    |   stw CARG2, FORL_EXT*8+4(RA)
+    |.endif
+    if (op != BC_JFORL) {
+      |  add RD, PC, RD
+    }
+    |.if FPU
+    |  fcmpu cr0, f1, f2
+    |.else
+    |  mr SAVE1, RD
+    |  blex __ledf2
+    |  cmpwi CRET1, 0
+    |  mr RD, SAVE1
+    |.endif
+    if (op == BC_JFORI) {
+      |  addis PC, RD, -(BCBIAS_J*4 >> 16)
+    }
+    |  blt cr6, >5
+    if (op == BC_FORI) {
+      |  bgt >3
+    } else if (op == BC_IFORL) {
+      |.if DUALNUM
+      |  bgty <2
+      |.else
+      |  bgt >2
+      |.endif
+      |1:
+      |  addis PC, RD, -(BCBIAS_J*4 >> 16)
+    } else if (op == BC_JFORI) {
+      |  bley >7
+    } else {
+      |  bley =>BC_JLOOP
+    }
+    |.if DUALNUM
+    |  b <2
+    |.else
+    |2:
+    |  ins_next
+    |.endif
+    |5:  // Negative step.
+    if (op == BC_FORI) {
+      |  bge <2
+      |3:  // Used by integer loop, too.
+      |  addis PC, RD, -(BCBIAS_J*4 >> 16)
+    } else if (op == BC_IFORL) {
+      |  bgey <1
+    } else if (op == BC_JFORI) {
+      |  bgey >7
+    } else {
+      |  bgey =>BC_JLOOP
+    }
+    |  b <2
+    if (op == BC_JFORI) {
+      |7:
+      |  lwz INS, -4(PC)
+      |  decode_RD8 RD, INS
+      |  b =>BC_JLOOP
+    }
+    break;
+
+  case BC_ITERL:
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_IITERL follows.
+    break;
+
+  case BC_JITERL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IITERL:
+    |  // RA = base*8, RD = target
+    |  lwzux TMP1, RA, BASE
+    |   lwz TMP2, 4(RA)
+    |  checknil TMP1; beq >1		// Stop if iterator returned nil.
+    if (op == BC_JITERL) {
+      |  stw TMP1, -8(RA)
+      |   stw TMP2, -4(RA)
+      |  b =>BC_JLOOP
+    } else {
+      |  branch_RD			// Otherwise save control var + branch.
+      |  stw TMP1, -8(RA)
+      |   stw TMP2, -4(RA)
+    }
+    |1:
+    |  ins_next
+    break;
+
+  case BC_LOOP:
+    |  // RA = base*8, RD = target (loop extent)
+    |  // Note: RA/RD is only used by trace recorder to determine scope/extent
+    |  // This opcode does NOT jump, it's only purpose is to detect a hot loop.
+    |.if JIT
+    |  hotloop
+    |.endif
+    |  // Fall through. Assumes BC_ILOOP follows.
+    break;
+
+  case BC_ILOOP:
+    |  // RA = base*8, RD = target (loop extent)
+    |  ins_next
+    break;
+
+  case BC_JLOOP:
+    |.if JIT
+    |  // RA = base*8 (ignored), RD = traceno*8
+    |  lwz TMP1, DISPATCH_J(trace)(DISPATCH)
+    |  srwi RD, RD, 1
+    |  // Traces on PPC don't store the trace number, so use 0.
+    |   stw ZERO, DISPATCH_GL(vmstate)(DISPATCH)
+    |  lwzx TRACE:TMP2, TMP1, RD
+    |  clrso TMP1
+    |  lp TMP2, TRACE:TMP2->mcode
+    |   stw BASE, DISPATCH_GL(jit_base)(DISPATCH)
+    |  mtctr TMP2
+    |   addi JGL, DISPATCH, GG_DISP2G+32768
+    |   stw L, DISPATCH_GL(tmpbuf.L)(DISPATCH)
+    |  bctr
+    |.endif
+    break;
+
+  case BC_JMP:
+    |  // RA = base*8 (only used by trace recorder), RD = target
+    |  branch_RD
+    |  ins_next
+    break;
+
+  /* -- Function headers -------------------------------------------------- */
+
+  case BC_FUNCF:
+    |.if JIT
+    |  hotcall
+    |.endif
+  case BC_FUNCV:  /* NYI: compiled vararg functions. */
+    |  // Fall through. Assumes BC_IFUNCF/BC_IFUNCV follow.
+    break;
+
+  case BC_JFUNCF:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IFUNCF:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = LFUNC, RC = nargs*8
+    |  lwz TMP2, L->maxstack
+    |   lbz TMP1, -4+PC2PROTO(numparams)(PC)
+    |    lwz KBASE, -4+PC2PROTO(k)(PC)
+    |  cmplw RA, TMP2
+    |   slwi TMP1, TMP1, 3
+    |  bgt ->vm_growstack_l
+    if (op != BC_JFUNCF) {
+      |  ins_next1
+    }
+    |2:
+    |  cmplw NARGS8:RC, TMP1		// Check for missing parameters.
+    |  blt >3
+    if (op == BC_JFUNCF) {
+      |  decode_RD8 RD, INS
+      |  b =>BC_JLOOP
+    } else {
+      |  ins_next2
+    }
+    |
+    |3:  // Clear missing parameters.
+    |  stwx TISNIL, BASE, NARGS8:RC
+    |  addi NARGS8:RC, NARGS8:RC, 8
+    |  b <2
+    break;
+
+  case BC_JFUNCV:
+#if !LJ_HASJIT
+    break;
+#endif
+    |  NYI  // NYI: compiled vararg functions
+    break;  /* NYI: compiled vararg functions. */
+
+  case BC_IFUNCV:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = LFUNC, RC = nargs*8
+    |  lwz TMP2, L->maxstack
+    |   add TMP1, BASE, RC
+    |  add TMP0, RA, RC
+    |   stw LFUNC:RB, 4(TMP1)		// Store copy of LFUNC.
+    |   addi TMP3, RC, 8+FRAME_VARG
+    |    lwz KBASE, -4+PC2PROTO(k)(PC)
+    |  cmplw TMP0, TMP2
+    |   stw TMP3, 0(TMP1)		// Store delta + FRAME_VARG.
+    |  bge ->vm_growstack_l
+    |  lbz TMP2, -4+PC2PROTO(numparams)(PC)
+    |   mr RA, BASE
+    |   mr RC, TMP1
+    |  ins_next1
+    |  cmpwi TMP2, 0
+    |   addi BASE, TMP1, 8
+    |  beq >3
+    |1:
+    |  cmplw RA, RC			// Less args than parameters?
+    |   lwz TMP0, 0(RA)
+    |   lwz TMP3, 4(RA)
+    |  bge >4
+    |    stw TISNIL, 0(RA)		// Clear old fixarg slot (help the GC).
+    |    addi RA, RA, 8
+    |2:
+    |  addic. TMP2, TMP2, -1
+    |   stw TMP0, 8(TMP1)
+    |   stw TMP3, 12(TMP1)
+    |    addi TMP1, TMP1, 8
+    |  bne <1
+    |3:
+    |  ins_next2
+    |
+    |4:  // Clear missing parameters.
+    |  li TMP0, LJ_TNIL
+    |  b <2
+    break;
+
+  case BC_FUNCC:
+  case BC_FUNCCW:
+    |  // BASE = new base, RA = BASE+framesize*8, RB = CFUNC, RC = nargs*8
+    if (op == BC_FUNCC) {
+      |  lp RD, CFUNC:RB->f
+    } else {
+      |  lp RD, DISPATCH_GL(wrapf)(DISPATCH)
+    }
+    |   add TMP1, RA, NARGS8:RC
+    |   lwz TMP2, L->maxstack
+    |  .toc lp TMP3, 0(RD)
+    |    add RC, BASE, NARGS8:RC
+    |   stp BASE, L->base
+    |   cmplw TMP1, TMP2
+    |    stp RC, L->top
+    |     li_vmstate C
+    |.if TOC
+    |  mtctr TMP3
+    |.else
+    |  mtctr RD
+    |.endif
+    if (op == BC_FUNCCW) {
+      |  lp CARG2, CFUNC:RB->f
+    }
+    |  mr CARG1, L
+    |   bgt ->vm_growstack_c		// Need to grow stack.
+    |  .toc lp TOCREG, TOC_OFS(RD)
+    |  .tocenv lp ENVREG, ENV_OFS(RD)
+    |     st_vmstate
+    |  bctrl				// (lua_State *L [, lua_CFunction f])
+    |  // Returns nresults.
+    |  lp BASE, L->base
+    |  .toc ld TOCREG, SAVE_TOC
+    |   slwi RD, CRET1, 3
+    |  lp TMP1, L->top
+    |    li_vmstate INTERP
+    |  lwz PC, FRAME_PC(BASE)		// Fetch PC of caller.
+    |    stw L, DISPATCH_GL(cur_L)(DISPATCH)
+    |   sub RA, TMP1, RD		// RA = L->top - nresults*8
+    |    st_vmstate
+    |  b ->vm_returnc
+    break;
+
+  /* ---------------------------------------------------------------------- */
+
+  default:
+    fprintf(stderr, "Error: undefined opcode BC_%s\n", bc_names[op]);
+    exit(2);
+    break;
+  }
+}
+
+static int build_backend(BuildCtx *ctx)
+{
+  int op;
+
+  dasm_growpc(Dst, BC__MAX);
+
+  build_subroutines(ctx);
+
+  |.code_op
+  for (op = 0; op < BC__MAX; op++)
+    build_ins(ctx, (BCOp)op, op);
+
+  return BC__MAX;
+}
+
+/* Emit pseudo frame-info for all assembler functions. */
+static void emit_asm_debug(BuildCtx *ctx)
+{
+  int fcofs = (int)((uint8_t *)ctx->glob[GLOB_vm_ffi_call] - ctx->code);
+  int i;
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+    fprintf(ctx->fp, "\t.section .debug_frame,\"\",@progbits\n");
+    fprintf(ctx->fp,
+	".Lframe0:\n"
+	"\t.long .LECIE0-.LSCIE0\n"
+	".LSCIE0:\n"
+	"\t.long 0xffffffff\n"
+	"\t.byte 0x1\n"
+	"\t.string \"\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 65\n"
+	"\t.byte 0xc\n\t.uleb128 1\n\t.uleb128 0\n"
+	"\t.align 2\n"
+	".LECIE0:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE0:\n"
+	"\t.long .LEFDE0-.LASFDE0\n"
+	".LASFDE0:\n"
+	"\t.long .Lframe0\n"
+	"\t.long .Lbegin\n"
+	"\t.long %d\n"
+	"\t.byte 0xe\n\t.uleb128 %d\n"
+	"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n"
+	"\t.byte 0x5\n\t.uleb128 70\n\t.uleb128 55\n",
+	fcofs, CFRAME_SIZE);
+    for (i = 14; i <= 31; i++)
+      fprintf(ctx->fp,
+	"\t.byte %d\n\t.uleb128 %d\n"
+	"\t.byte %d\n\t.uleb128 %d\n",
+	0x80+i, 37+(31-i), 0x80+32+i, 2+2*(31-i));
+    fprintf(ctx->fp,
+	"\t.align 2\n"
+	".LEFDE0:\n\n");
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".LSFDE1:\n"
+	"\t.long .LEFDE1-.LASFDE1\n"
+	".LASFDE1:\n"
+	"\t.long .Lframe0\n"
+#if LJ_TARGET_PS3
+	"\t.long .lj_vm_ffi_call\n"
+#else
+	"\t.long lj_vm_ffi_call\n"
+#endif
+	"\t.long %d\n"
+	"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n"
+	"\t.byte 0x8e\n\t.uleb128 2\n"
+	"\t.byte 0xd\n\t.uleb128 0xe\n"
+	"\t.align 2\n"
+	".LEFDE1:\n\n", (int)ctx->codesz - fcofs);
+#endif
+#if !LJ_NO_UNWIND
+    fprintf(ctx->fp, "\t.section .eh_frame,\"a\",@progbits\n");
+    fprintf(ctx->fp,
+	".Lframe1:\n"
+	"\t.long .LECIE1-.LSCIE1\n"
+	".LSCIE1:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zPR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 65\n"
+	"\t.uleb128 6\n"			/* augmentation length */
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.long lj_err_unwind_dwarf-.\n"
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.uleb128 1\n\t.uleb128 0\n"
+	"\t.align 2\n"
+	".LECIE1:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE2:\n"
+	"\t.long .LEFDE2-.LASFDE2\n"
+	".LASFDE2:\n"
+	"\t.long .LASFDE2-.Lframe1\n"
+	"\t.long .Lbegin-.\n"
+	"\t.long %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0xe\n\t.uleb128 %d\n"
+	"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n"
+	"\t.byte 0x5\n\t.uleb128 70\n\t.uleb128 55\n",
+	fcofs, CFRAME_SIZE);
+    for (i = 14; i <= 31; i++)
+      fprintf(ctx->fp,
+	"\t.byte %d\n\t.uleb128 %d\n"
+	"\t.byte %d\n\t.uleb128 %d\n",
+	0x80+i, 37+(31-i), 0x80+32+i, 2+2*(31-i));
+    fprintf(ctx->fp,
+	"\t.align 2\n"
+	".LEFDE2:\n\n");
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".Lframe2:\n"
+	"\t.long .LECIE2-.LSCIE2\n"
+	".LSCIE2:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -4\n"
+	"\t.byte 65\n"
+	"\t.uleb128 1\n"			/* augmentation length */
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.uleb128 1\n\t.uleb128 0\n"
+	"\t.align 2\n"
+	".LECIE2:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE3:\n"
+	"\t.long .LEFDE3-.LASFDE3\n"
+	".LASFDE3:\n"
+	"\t.long .LASFDE3-.Lframe2\n"
+	"\t.long lj_vm_ffi_call-.\n"
+	"\t.long %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n"
+	"\t.byte 0x8e\n\t.uleb128 2\n"
+	"\t.byte 0xd\n\t.uleb128 0xe\n"
+	"\t.align 2\n"
+	".LEFDE3:\n\n", (int)ctx->codesz - fcofs);
+#endif
+#endif
+    break;
+  default:
+    break;
+  }
+}
+
diff --git a/libs/luajit-cmake/luajit/src/vm_x64.dasc b/libs/luajit-cmake/luajit/src/vm_x64.dasc
new file mode 100644
index 0000000..03d9655
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/vm_x64.dasc
@@ -0,0 +1,4935 @@
+|// Low-level VM code for x64 CPUs in LJ_GC64 mode.
+|// Bytecode interpreter, fast functions and helper functions.
+|// Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+|
+|.arch x64
+|.section code_op, code_sub
+|
+|.actionlist build_actionlist
+|.globals GLOB_
+|.globalnames globnames
+|.externnames extnames
+|
+|//-----------------------------------------------------------------------
+|
+|.if WIN
+|.define X64WIN, 1			// Windows/x64 calling conventions.
+|.endif
+|
+|// Fixed register assignments for the interpreter.
+|// This is very fragile and has many dependencies. Caveat emptor.
+|.define BASE,		rdx		// Not C callee-save, refetched anyway.
+|.if X64WIN
+|.define KBASE,		rdi		// Must be C callee-save.
+|.define PC,		rsi		// Must be C callee-save.
+|.define DISPATCH,	rbx		// Must be C callee-save.
+|.define KBASEd,	edi
+|.define PCd,		esi
+|.define DISPATCHd,	ebx
+|.else
+|.define KBASE,		r15		// Must be C callee-save.
+|.define PC,		rbx		// Must be C callee-save.
+|.define DISPATCH,	r14		// Must be C callee-save.
+|.define KBASEd,	r15d
+|.define PCd,		ebx
+|.define DISPATCHd,	r14d
+|.endif
+|
+|.define RA,		rcx
+|.define RAd,		ecx
+|.define RAH,		ch
+|.define RAL,		cl
+|.define RB,		rbp		// Must be rbp (C callee-save).
+|.define RBd,		ebp
+|.define RC,		rax		// Must be rax.
+|.define RCd,		eax
+|.define RCW,		ax
+|.define RCH,		ah
+|.define RCL,		al
+|.define OP,		RBd
+|.define RD,		RC
+|.define RDd,		RCd
+|.define RDW,		RCW
+|.define RDL,		RCL
+|.define TMPR,		r10
+|.define TMPRd,		r10d
+|.define ITYPE,		r11
+|.define ITYPEd,	r11d
+|
+|.if X64WIN
+|.define CARG1,		rcx		// x64/WIN64 C call arguments.
+|.define CARG2,		rdx
+|.define CARG3,		r8
+|.define CARG4,		r9
+|.define CARG1d,	ecx
+|.define CARG2d,	edx
+|.define CARG3d,	r8d
+|.define CARG4d,	r9d
+|.else
+|.define CARG1,		rdi		// x64/POSIX C call arguments.
+|.define CARG2,		rsi
+|.define CARG3,		rdx
+|.define CARG4,		rcx
+|.define CARG5,		r8
+|.define CARG6,		r9
+|.define CARG1d,	edi
+|.define CARG2d,	esi
+|.define CARG3d,	edx
+|.define CARG4d,	ecx
+|.define CARG5d,	r8d
+|.define CARG6d,	r9d
+|.endif
+|
+|// Type definitions. Some of these are only used for documentation.
+|.type L,		lua_State
+|.type GL,		global_State
+|.type TVALUE,		TValue
+|.type GCOBJ,		GCobj
+|.type STR,		GCstr
+|.type TAB,		GCtab
+|.type LFUNC,		GCfuncL
+|.type CFUNC,		GCfuncC
+|.type PROTO,		GCproto
+|.type UPVAL,		GCupval
+|.type NODE,		Node
+|.type NARGS,		int
+|.type TRACE,		GCtrace
+|.type SBUF,		SBuf
+|
+|// Stack layout while in interpreter. Must match with lj_frame.h.
+|//-----------------------------------------------------------------------
+|.if X64WIN		// x64/Windows stack layout
+|
+|.define CFRAME_SPACE,	aword*5			// Delta for rsp (see <--).
+|.macro saveregs_
+|  push rdi; push rsi; push rbx
+|  sub rsp, CFRAME_SPACE
+|.endmacro
+|.macro saveregs
+|  push rbp; saveregs_
+|.endmacro
+|.macro restoreregs
+|  add rsp, CFRAME_SPACE
+|  pop rbx; pop rsi; pop rdi; pop rbp
+|.endmacro
+|
+|.define SAVE_CFRAME,	aword [rsp+aword*13]
+|.define SAVE_PC,	aword [rsp+aword*12]
+|.define SAVE_L,	aword [rsp+aword*11]
+|.define SAVE_ERRF,	dword [rsp+dword*21]
+|.define SAVE_NRES,	dword [rsp+dword*20]
+|//----- 16 byte aligned, ^^^ 32 byte register save area, owned by interpreter
+|.define SAVE_RET,	aword [rsp+aword*9]	//<-- rsp entering interpreter.
+|.define SAVE_R4,	aword [rsp+aword*8]
+|.define SAVE_R3,	aword [rsp+aword*7]
+|.define SAVE_R2,	aword [rsp+aword*6]
+|.define SAVE_R1,	aword [rsp+aword*5]	//<-- rsp after register saves.
+|.define ARG5,		aword [rsp+aword*4]
+|.define CSAVE_4,	aword [rsp+aword*3]
+|.define CSAVE_3,	aword [rsp+aword*2]
+|.define CSAVE_2,	aword [rsp+aword*1]
+|.define CSAVE_1,	aword [rsp]		//<-- rsp while in interpreter.
+|//----- 16 byte aligned, ^^^ 32 byte register save area, owned by callee
+|
+|.define ARG5d,		dword [rsp+dword*8]
+|.define TMP1,		ARG5			// TMP1 overlaps ARG5
+|.define TMP1d,		ARG5d
+|.define TMP1hi,	dword [rsp+dword*9]
+|.define MULTRES,	TMP1d			// MULTRES overlaps TMP1d.
+|
+|//-----------------------------------------------------------------------
+|.else			// x64/POSIX stack layout
+|
+|.define CFRAME_SPACE,	aword*5			// Delta for rsp (see <--).
+|.macro saveregs_
+|  push rbx; push r15; push r14
+|.if NO_UNWIND
+|  push r13; push r12
+|.endif
+|  sub rsp, CFRAME_SPACE
+|.endmacro
+|.macro saveregs
+|  push rbp; saveregs_
+|.endmacro
+|.macro restoreregs
+|  add rsp, CFRAME_SPACE
+|.if NO_UNWIND
+|  pop r12; pop r13
+|.endif
+|  pop r14; pop r15; pop rbx; pop rbp
+|.endmacro
+|
+|//----- 16 byte aligned,
+|.if NO_UNWIND
+|.define SAVE_RET,	aword [rsp+aword*11]	//<-- rsp entering interpreter.
+|.define SAVE_R4,	aword [rsp+aword*10]
+|.define SAVE_R3,	aword [rsp+aword*9]
+|.define SAVE_R2,	aword [rsp+aword*8]
+|.define SAVE_R1,	aword [rsp+aword*7]
+|.define SAVE_RU2,	aword [rsp+aword*6]
+|.define SAVE_RU1,	aword [rsp+aword*5]	//<-- rsp after register saves.
+|.else
+|.define SAVE_RET,	aword [rsp+aword*9]	//<-- rsp entering interpreter.
+|.define SAVE_R4,	aword [rsp+aword*8]
+|.define SAVE_R3,	aword [rsp+aword*7]
+|.define SAVE_R2,	aword [rsp+aword*6]
+|.define SAVE_R1,	aword [rsp+aword*5]	//<-- rsp after register saves.
+|.endif
+|.define SAVE_CFRAME,	aword [rsp+aword*4]
+|.define SAVE_PC,	aword [rsp+aword*3]
+|.define SAVE_L,	aword [rsp+aword*2]
+|.define SAVE_ERRF,	dword [rsp+dword*3]
+|.define SAVE_NRES,	dword [rsp+dword*2]
+|.define TMP1,		aword [rsp]		//<-- rsp while in interpreter.
+|//----- 16 byte aligned
+|
+|.define TMP1d,		dword [rsp]
+|.define TMP1hi,	dword [rsp+dword*1]
+|.define MULTRES,	TMP1d			// MULTRES overlaps TMP1d.
+|
+|.endif
+|
+|//-----------------------------------------------------------------------
+|
+|// Instruction headers.
+|.macro ins_A; .endmacro
+|.macro ins_AD; .endmacro
+|.macro ins_AJ; .endmacro
+|.macro ins_ABC; movzx RBd, RCH; movzx RCd, RCL; .endmacro
+|.macro ins_AB_; movzx RBd, RCH; .endmacro
+|.macro ins_A_C; movzx RCd, RCL; .endmacro
+|.macro ins_AND; not RD; .endmacro
+|
+|// Instruction decode+dispatch. Carefully tuned (nope, lodsd is not faster).
+|.macro ins_NEXT
+|  mov RCd, [PC]
+|  movzx RAd, RCH
+|  movzx OP, RCL
+|  add PC, 4
+|  shr RCd, 16
+|  jmp aword [DISPATCH+OP*8]
+|.endmacro
+|
+|// Instruction footer.
+|.if 1
+|  // Replicated dispatch. Less unpredictable branches, but higher I-Cache use.
+|  .define ins_next, ins_NEXT
+|  .define ins_next_, ins_NEXT
+|.else
+|  // Common dispatch. Lower I-Cache use, only one (very) unpredictable branch.
+|  // Affects only certain kinds of benchmarks (and only with -j off).
+|  // Around 10%-30% slower on Core2, a lot more slower on P4.
+|  .macro ins_next
+|    jmp ->ins_next
+|  .endmacro
+|  .macro ins_next_
+|  ->ins_next:
+|    ins_NEXT
+|  .endmacro
+|.endif
+|
+|// Call decode and dispatch.
+|.macro ins_callt
+|  // BASE = new base, RB = LFUNC, RD = nargs+1, [BASE-8] = PC
+|  mov PC, LFUNC:RB->pc
+|  mov RAd, [PC]
+|  movzx OP, RAL
+|  movzx RAd, RAH
+|  add PC, 4
+|  jmp aword [DISPATCH+OP*8]
+|.endmacro
+|
+|.macro ins_call
+|  // BASE = new base, RB = LFUNC, RD = nargs+1
+|  mov [BASE-8], PC
+|  ins_callt
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Macros to clear or set tags.
+|.macro cleartp, reg; shl reg, 17; shr reg, 17; .endmacro
+|.macro settp, reg, tp
+|  mov64 ITYPE, ((uint64_t)tp<<47)
+|  or reg, ITYPE
+|.endmacro
+|.macro settp, dst, reg, tp
+|  mov64 dst, ((uint64_t)tp<<47)
+|  or dst, reg
+|.endmacro
+|.macro setint, reg
+|  settp reg, LJ_TISNUM
+|.endmacro
+|.macro setint, dst, reg
+|  settp dst, reg, LJ_TISNUM
+|.endmacro
+|
+|// Macros to test operand types.
+|.macro checktp_nc, reg, tp, target
+|  mov ITYPE, reg
+|  sar ITYPE, 47
+|  cmp ITYPEd, tp
+|  jne target
+|.endmacro
+|.macro checktp, reg, tp, target
+|  mov ITYPE, reg
+|  cleartp reg
+|  sar ITYPE, 47
+|  cmp ITYPEd, tp
+|  jne target
+|.endmacro
+|.macro checktptp, src, tp, target
+|  mov ITYPE, src
+|  sar ITYPE, 47
+|  cmp ITYPEd, tp
+|  jne target
+|.endmacro
+|.macro checkstr, reg, target; checktp reg, LJ_TSTR, target; .endmacro
+|.macro checktab, reg, target; checktp reg, LJ_TTAB, target; .endmacro
+|.macro checkfunc, reg, target; checktp reg, LJ_TFUNC, target; .endmacro
+|
+|.macro checknumx, reg, target, jump
+|  mov ITYPE, reg
+|  sar ITYPE, 47
+|  cmp ITYPEd, LJ_TISNUM
+|  jump target
+|.endmacro
+|.macro checkint, reg, target; checknumx reg, target, jne; .endmacro
+|.macro checkinttp, src, target; checknumx src, target, jne; .endmacro
+|.macro checknum, reg, target; checknumx reg, target, jae; .endmacro
+|.macro checknumtp, src, target; checknumx src, target, jae; .endmacro
+|.macro checknumber, src, target; checknumx src, target, ja; .endmacro
+|
+|.macro mov_false, reg; mov64 reg, (int64_t)~((uint64_t)1<<47); .endmacro
+|.macro mov_true, reg; mov64 reg, (int64_t)~((uint64_t)2<<47); .endmacro
+|
+|// These operands must be used with movzx.
+|.define PC_OP, byte [PC-4]
+|.define PC_RA, byte [PC-3]
+|.define PC_RB, byte [PC-1]
+|.define PC_RC, byte [PC-2]
+|.define PC_RD, word [PC-2]
+|
+|.macro branchPC, reg
+|  lea PC, [PC+reg*4-BCBIAS_J*4]
+|.endmacro
+|
+|// Assumes DISPATCH is relative to GL.
+#define DISPATCH_GL(field)	(GG_DISP2G + (int)offsetof(global_State, field))
+#define DISPATCH_J(field)	(GG_DISP2J + (int)offsetof(jit_State, field))
+|
+#define PC2PROTO(field)  ((int)offsetof(GCproto, field)-(int)sizeof(GCproto))
+|
+|// Decrement hashed hotcount and trigger trace recorder if zero.
+|.macro hotloop, reg
+|  mov reg, PCd
+|  shr reg, 1
+|  and reg, HOTCOUNT_PCMASK
+|  sub word [DISPATCH+reg+GG_DISP2HOT], HOTCOUNT_LOOP
+|  jb ->vm_hotloop
+|.endmacro
+|
+|.macro hotcall, reg
+|  mov reg, PCd
+|  shr reg, 1
+|  and reg, HOTCOUNT_PCMASK
+|  sub word [DISPATCH+reg+GG_DISP2HOT], HOTCOUNT_CALL
+|  jb ->vm_hotcall
+|.endmacro
+|
+|// Set current VM state.
+|.macro set_vmstate, st
+|  mov dword [DISPATCH+DISPATCH_GL(vmstate)], ~LJ_VMST_..st
+|.endmacro
+|
+|.macro fpop1; fstp st1; .endmacro
+|
+|// Synthesize SSE FP constants.
+|.macro sseconst_abs, reg, tmp		// Synthesize abs mask.
+|  mov64 tmp, U64x(7fffffff,ffffffff); movd reg, tmp
+|.endmacro
+|
+|.macro sseconst_hi, reg, tmp, val	// Synthesize hi-32 bit const.
+|  mov64 tmp, U64x(val,00000000); movd reg, tmp
+|.endmacro
+|
+|.macro sseconst_sign, reg, tmp		// Synthesize sign mask.
+|  sseconst_hi reg, tmp, 80000000
+|.endmacro
+|.macro sseconst_1, reg, tmp		// Synthesize 1.0.
+|  sseconst_hi reg, tmp, 3ff00000
+|.endmacro
+|.macro sseconst_2p52, reg, tmp		// Synthesize 2^52.
+|  sseconst_hi reg, tmp, 43300000
+|.endmacro
+|.macro sseconst_tobit, reg, tmp	// Synthesize 2^52 + 2^51.
+|  sseconst_hi reg, tmp, 43380000
+|.endmacro
+|
+|// Move table write barrier back. Overwrites reg.
+|.macro barrierback, tab, reg
+|  and byte tab->marked, (uint8_t)~LJ_GC_BLACK	// black2gray(tab)
+|  mov reg, [DISPATCH+DISPATCH_GL(gc.grayagain)]
+|  mov [DISPATCH+DISPATCH_GL(gc.grayagain)], tab
+|  mov tab->gclist, reg
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+
+/* Generate subroutines used by opcodes and other parts of the VM. */
+/* The .code_sub section should be last to help static branch prediction. */
+static void build_subroutines(BuildCtx *ctx)
+{
+  |.code_sub
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Return handling ----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_returnp:
+  |  test PCd, FRAME_P
+  |  jz ->cont_dispatch
+  |
+  |  // Return from pcall or xpcall fast func.
+  |  and PC, -8
+  |  sub BASE, PC			// Restore caller base.
+  |  lea RA, [RA+PC-8]			// Rebase RA and prepend one result.
+  |  mov PC, [BASE-8]			// Fetch PC of previous frame.
+  |  // Prepending may overwrite the pcall frame, so do it at the end.
+  |  mov_true ITYPE
+  |  mov aword [BASE+RA], ITYPE		// Prepend true to results.
+  |
+  |->vm_returnc:
+  |  add RDd, 1				// RD = nresults+1
+  |  jz ->vm_unwind_yield
+  |  mov MULTRES, RDd
+  |  test PC, FRAME_TYPE
+  |  jz ->BC_RET_Z			// Handle regular return to Lua.
+  |
+  |->vm_return:
+  |  // BASE = base, RA = resultofs, RD = nresults+1 (= MULTRES), PC = return
+  |  xor PC, FRAME_C
+  |  test PCd, FRAME_TYPE
+  |  jnz ->vm_returnp
+  |
+  |  // Return to C.
+  |  set_vmstate C
+  |  and PC, -8
+  |  sub PC, BASE
+  |  neg PC				// Previous base = BASE - delta.
+  |
+  |  sub RDd, 1
+  |  jz >2
+  |1:  // Move results down.
+  |  mov RB, [BASE+RA]
+  |  mov [BASE-16], RB
+  |  add BASE, 8
+  |  sub RDd, 1
+  |  jnz <1
+  |2:
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, PC
+  |3:
+  |  mov RDd, MULTRES
+  |  mov RAd, SAVE_NRES			// RA = wanted nresults+1
+  |4:
+  |  cmp RAd, RDd
+  |  jne >6				// More/less results wanted?
+  |5:
+  |  sub BASE, 16
+  |  mov L:RB->top, BASE
+  |
+  |->vm_leave_cp:
+  |  mov RA, SAVE_CFRAME		// Restore previous C frame.
+  |  mov L:RB->cframe, RA
+  |  xor eax, eax			// Ok return status for vm_pcall.
+  |
+  |->vm_leave_unw:
+  |  restoreregs
+  |  ret
+  |
+  |6:
+  |  jb >7				// Less results wanted?
+  |  // More results wanted. Check stack size and fill up results with nil.
+  |  cmp BASE, L:RB->maxstack
+  |  ja >8
+  |  mov aword [BASE-16], LJ_TNIL
+  |  add BASE, 8
+  |  add RDd, 1
+  |  jmp <4
+  |
+  |7:  // Less results wanted.
+  |  test RAd, RAd
+  |  jz <5				// But check for LUA_MULTRET+1.
+  |  sub RA, RD				// Negative result!
+  |  lea BASE, [BASE+RA*8]		// Correct top.
+  |  jmp <5
+  |
+  |8:  // Corner case: need to grow stack for filling up results.
+  |  // This can happen if:
+  |  // - A C function grows the stack (a lot).
+  |  // - The GC shrinks the stack in between.
+  |  // - A return back from a lua_call() with (high) nresults adjustment.
+  |  mov L:RB->top, BASE		// Save current top held in BASE (yes).
+  |  mov MULTRES, RDd			// Need to fill only remainder with nil.
+  |  mov CARG2d, RAd
+  |  mov CARG1, L:RB
+  |  call extern lj_state_growstack	// (lua_State *L, int n)
+  |  mov BASE, L:RB->top		// Need the (realloced) L->top in BASE.
+  |  jmp <3
+  |
+  |->vm_unwind_yield:
+  |  mov al, LUA_YIELD
+  |  jmp ->vm_unwind_c_eh
+  |
+  |->vm_unwind_c:			// Unwind C stack, return from vm_pcall.
+  |  // (void *cframe, int errcode)
+  |  mov eax, CARG2d			// Error return status for vm_pcall.
+  |  mov rsp, CARG1
+  |->vm_unwind_c_eh:			// Landing pad for external unwinder.
+  |  mov L:RB, SAVE_L
+  |  mov GL:RB, L:RB->glref
+  |  mov dword GL:RB->vmstate, ~LJ_VMST_C
+  |  jmp ->vm_leave_unw
+  |
+  |->vm_unwind_rethrow:
+  |.if not X64WIN
+  |  mov CARG1, SAVE_L
+  |  mov CARG2d, eax
+  |  restoreregs
+  |  jmp extern lj_err_throw		// (lua_State *L, int errcode)
+  |.endif
+  |
+  |->vm_unwind_ff:			// Unwind C stack, return from ff pcall.
+  |  // (void *cframe)
+  |  and CARG1, CFRAME_RAWMASK
+  |  mov rsp, CARG1
+  |->vm_unwind_ff_eh:			// Landing pad for external unwinder.
+  |  mov L:RB, SAVE_L
+  |  mov RDd, 1+1			// Really 1+2 results, incr. later.
+  |  mov BASE, L:RB->base
+  |  mov DISPATCH, L:RB->glref		// Setup pointer to dispatch table.
+  |  add DISPATCH, GG_G2DISP
+  |  mov PC, [BASE-8]			// Fetch PC of previous frame.
+  |  mov_false RA
+  |  mov RB, [BASE]
+  |  mov [BASE-16], RA			// Prepend false to error message.
+  |  mov [BASE-8], RB
+  |  mov RA, -16			// Results start at BASE+RA = BASE-16.
+  |  set_vmstate INTERP
+  |  jmp ->vm_returnc			// Increments RD/MULTRES and returns.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Grow stack for calls -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_growstack_c:			// Grow stack for C function.
+  |  mov CARG2d, LUA_MINSTACK
+  |  jmp >2
+  |
+  |->vm_growstack_v:			// Grow stack for vararg Lua function.
+  |  sub RD, 16				// LJ_FR2
+  |  jmp >1
+  |
+  |->vm_growstack_f:			// Grow stack for fixarg Lua function.
+  |  // BASE = new base, RD = nargs+1, RB = L, PC = first PC
+  |  lea RD, [BASE+NARGS:RD*8-8]
+  |1:
+  |  movzx RAd, byte [PC-4+PC2PROTO(framesize)]
+  |  add PC, 4				// Must point after first instruction.
+  |  mov L:RB->base, BASE
+  |  mov L:RB->top, RD
+  |  mov SAVE_PC, PC
+  |  mov CARG2, RA
+  |2:
+  |  // RB = L, L->base = new base, L->top = top
+  |  mov CARG1, L:RB
+  |  call extern lj_state_growstack	// (lua_State *L, int n)
+  |  mov BASE, L:RB->base
+  |  mov RD, L:RB->top
+  |  mov LFUNC:RB, [BASE-16]
+  |  cleartp LFUNC:RB
+  |  sub RD, BASE
+  |  shr RDd, 3
+  |  add NARGS:RDd, 1
+  |  // BASE = new base, RB = LFUNC, RD = nargs+1
+  |  ins_callt				// Just retry the call.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Entry points into the assembler VM ---------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_resume:				// Setup C frame and resume thread.
+  |  // (lua_State *L, TValue *base, int nres1 = 0, ptrdiff_t ef = 0)
+  |  saveregs
+  |  mov L:RB, CARG1			// Caveat: CARG1 may be RA.
+  |  mov SAVE_L, CARG1
+  |  mov RA, CARG2
+  |  mov PCd, FRAME_CP
+  |  xor RDd, RDd
+  |  lea KBASE, [esp+CFRAME_RESUME]
+  |  mov DISPATCH, L:RB->glref		// Setup pointer to dispatch table.
+  |  add DISPATCH, GG_G2DISP
+  |  mov SAVE_PC, RD			// Any value outside of bytecode is ok.
+  |  mov SAVE_CFRAME, RD
+  |  mov SAVE_NRES, RDd
+  |  mov SAVE_ERRF, RDd
+  |  mov L:RB->cframe, KBASE
+  |  cmp byte L:RB->status, RDL
+  |  je >2				// Initial resume (like a call).
+  |
+  |  // Resume after yield (like a return).
+  |  mov [DISPATCH+DISPATCH_GL(cur_L)], L:RB
+  |  set_vmstate INTERP
+  |  mov byte L:RB->status, RDL
+  |  mov BASE, L:RB->base
+  |  mov RD, L:RB->top
+  |  sub RD, RA
+  |  shr RDd, 3
+  |  add RDd, 1				// RD = nresults+1
+  |  sub RA, BASE			// RA = resultofs
+  |  mov PC, [BASE-8]
+  |  mov MULTRES, RDd
+  |  test PCd, FRAME_TYPE
+  |  jz ->BC_RET_Z
+  |  jmp ->vm_return
+  |
+  |->vm_pcall:				// Setup protected C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1, ptrdiff_t ef)
+  |  saveregs
+  |  mov PCd, FRAME_CP
+  |  mov SAVE_ERRF, CARG4d
+  |  jmp >1
+  |
+  |->vm_call:				// Setup C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1)
+  |  saveregs
+  |  mov PCd, FRAME_C
+  |
+  |1:  // Entry point for vm_pcall above (PC = ftype).
+  |  mov SAVE_NRES, CARG3d
+  |  mov L:RB, CARG1			// Caveat: CARG1 may be RA.
+  |  mov SAVE_L, CARG1
+  |  mov RA, CARG2
+  |
+  |  mov DISPATCH, L:RB->glref		// Setup pointer to dispatch table.
+  |  mov KBASE, L:RB->cframe		// Add our C frame to cframe chain.
+  |  mov SAVE_CFRAME, KBASE
+  |  mov SAVE_PC, L:RB			// Any value outside of bytecode is ok.
+  |  add DISPATCH, GG_G2DISP
+  |  mov L:RB->cframe, rsp
+  |
+  |2:  // Entry point for vm_resume/vm_cpcall (RA = base, RB = L, PC = ftype).
+  |  mov [DISPATCH+DISPATCH_GL(cur_L)], L:RB
+  |  set_vmstate INTERP
+  |  mov BASE, L:RB->base		// BASE = old base (used in vmeta_call).
+  |  add PC, RA
+  |  sub PC, BASE			// PC = frame delta + frame type
+  |
+  |  mov RD, L:RB->top
+  |  sub RD, RA
+  |  shr NARGS:RDd, 3
+  |  add NARGS:RDd, 1			// RD = nargs+1
+  |
+  |->vm_call_dispatch:
+  |  mov LFUNC:RB, [RA-16]
+  |  checkfunc LFUNC:RB, ->vmeta_call	// Ensure KBASE defined and != BASE.
+  |
+  |->vm_call_dispatch_f:
+  |  mov BASE, RA
+  |  ins_call
+  |  // BASE = new base, RB = func, RD = nargs+1, PC = caller PC
+  |
+  |->vm_cpcall:				// Setup protected C frame, call C.
+  |  // (lua_State *L, lua_CFunction func, void *ud, lua_CPFunction cp)
+  |  saveregs
+  |  mov L:RB, CARG1			// Caveat: CARG1 may be RA.
+  |  mov SAVE_L, CARG1
+  |  mov SAVE_PC, L:RB			// Any value outside of bytecode is ok.
+  |
+  |  mov KBASE, L:RB->stack		// Compute -savestack(L, L->top).
+  |  sub KBASE, L:RB->top
+  |   mov DISPATCH, L:RB->glref		// Setup pointer to dispatch table.
+  |  mov SAVE_ERRF, 0			// No error function.
+  |  mov SAVE_NRES, KBASEd		// Neg. delta means cframe w/o frame.
+  |   add DISPATCH, GG_G2DISP
+  |  // Handler may change cframe_nres(L->cframe) or cframe_errfunc(L->cframe).
+  |
+  |  mov KBASE, L:RB->cframe		// Add our C frame to cframe chain.
+  |  mov SAVE_CFRAME, KBASE
+  |  mov L:RB->cframe, rsp
+  |  mov [DISPATCH+DISPATCH_GL(cur_L)], L:RB
+  |
+  |  call CARG4			// (lua_State *L, lua_CFunction func, void *ud)
+  |  // TValue * (new base) or NULL returned in eax (RC).
+  |  test RC, RC
+  |  jz ->vm_leave_cp			// No base? Just remove C frame.
+  |  mov RA, RC
+  |  mov PCd, FRAME_CP
+  |  jmp <2				// Else continue with the call.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Metamethod handling ------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |//-- Continuation dispatch ----------------------------------------------
+  |
+  |->cont_dispatch:
+  |  // BASE = meta base, RA = resultofs, RD = nresults+1 (also in MULTRES)
+  |  add RA, BASE
+  |  and PC, -8
+  |  mov RB, BASE
+  |  sub BASE, PC			// Restore caller BASE.
+  |  mov aword [RA+RD*8-8], LJ_TNIL	// Ensure one valid arg.
+  |  mov RC, RA				// ... in [RC]
+  |  mov PC, [RB-24]			// Restore PC from [cont|PC].
+  |  mov RA, qword [RB-32]		// May be negative on WIN64 with debug.
+  |.if FFI
+  |  cmp RA, 1
+  |  jbe >1
+  |.endif
+  |  mov LFUNC:KBASE, [BASE-16]
+  |  cleartp LFUNC:KBASE
+  |  mov KBASE, LFUNC:KBASE->pc
+  |  mov KBASE, [KBASE+PC2PROTO(k)]
+  |  // BASE = base, RC = result, RB = meta base
+  |  jmp RA				// Jump to continuation.
+  |
+  |.if FFI
+  |1:
+  |  je ->cont_ffi_callback		// cont = 1: return from FFI callback.
+  |  // cont = 0: Tail call from C function.
+  |  sub RB, BASE
+  |  shr RBd, 3
+  |  lea RDd, [RBd-3]
+  |  jmp ->vm_call_tail
+  |.endif
+  |
+  |->cont_cat:				// BASE = base, RC = result, RB = mbase
+  |  movzx RAd, PC_RB
+  |  sub RB, 32
+  |  lea RA, [BASE+RA*8]
+  |  sub RA, RB
+  |  je ->cont_ra
+  |  neg RA
+  |  shr RAd, 3
+  |.if X64WIN
+  |  mov CARG3d, RAd
+  |  mov L:CARG1, SAVE_L
+  |  mov L:CARG1->base, BASE
+  |  mov RC, [RC]
+  |  mov [RB], RC
+  |  mov CARG2, RB
+  |.else
+  |  mov L:CARG1, SAVE_L
+  |  mov L:CARG1->base, BASE
+  |  mov CARG3d, RAd
+  |  mov RA, [RC]
+  |  mov [RB], RA
+  |  mov CARG2, RB
+  |.endif
+  |  jmp ->BC_CAT_Z
+  |
+  |//-- Table indexing metamethods -----------------------------------------
+  |
+  |->vmeta_tgets:
+  |  settp STR:RC, LJ_TSTR		// STR:RC = GCstr *
+  |  mov TMP1, STR:RC
+  |  lea RC, TMP1
+  |  cmp PC_OP, BC_GGET
+  |  jne >1
+  |  settp TAB:RA, TAB:RB, LJ_TTAB	// TAB:RB = GCtab *
+  |  lea RB, [DISPATCH+DISPATCH_GL(tmptv)]  // Store fn->l.env in g->tmptv.
+  |  mov [RB], TAB:RA
+  |  jmp >2
+  |
+  |->vmeta_tgetb:
+  |  movzx RCd, PC_RC
+  |.if DUALNUM
+  |  setint RC
+  |  mov TMP1, RC
+  |.else
+  |  cvtsi2sd xmm0, RCd
+  |  movsd TMP1, xmm0
+  |.endif
+  |  lea RC, TMP1
+  |  jmp >1
+  |
+  |->vmeta_tgetv:
+  |  movzx RCd, PC_RC			// Reload TValue *k from RC.
+  |  lea RC, [BASE+RC*8]
+  |1:
+  |  movzx RBd, PC_RB			// Reload TValue *t from RB.
+  |  lea RB, [BASE+RB*8]
+  |2:
+  |  mov L:CARG1, SAVE_L
+  |  mov L:CARG1->base, BASE		// Caveat: CARG2/CARG3 may be BASE.
+  |  mov CARG2, RB
+  |  mov CARG3, RC
+  |  mov L:RB, L:CARG1
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_tget		// (lua_State *L, TValue *o, TValue *k)
+  |  // TValue * (finished) or NULL (metamethod) returned in eax (RC).
+  |  mov BASE, L:RB->base
+  |  test RC, RC
+  |  jz >3
+  |->cont_ra:				// BASE = base, RC = result
+  |  movzx RAd, PC_RA
+  |  mov RB, [RC]
+  |  mov [BASE+RA*8], RB
+  |  ins_next
+  |
+  |3:  // Call __index metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k
+  |  mov RA, L:RB->top
+  |  mov [RA-24], PC			// [cont|PC]
+  |  lea PC, [RA+FRAME_CONT]
+  |  sub PC, BASE
+  |  mov LFUNC:RB, [RA-16]		// Guaranteed to be a function here.
+  |  mov NARGS:RDd, 2+1			// 2 args for func(t, k).
+  |  cleartp LFUNC:RB
+  |  jmp ->vm_call_dispatch_f
+  |
+  |->vmeta_tgetr:
+  |  mov CARG1, TAB:RB
+  |  mov RB, BASE			// Save BASE.
+  |  mov CARG2d, RCd			// Caveat: CARG2 == BASE
+  |  call extern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |  // cTValue * or NULL returned in eax (RC).
+  |  movzx RAd, PC_RA
+  |  mov BASE, RB			// Restore BASE.
+  |  test RC, RC
+  |  jnz ->BC_TGETR_Z
+  |  mov ITYPE, LJ_TNIL
+  |  jmp ->BC_TGETR2_Z
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->vmeta_tsets:
+  |  settp STR:RC, LJ_TSTR		// STR:RC = GCstr *
+  |  mov TMP1, STR:RC
+  |  lea RC, TMP1
+  |  cmp PC_OP, BC_GSET
+  |  jne >1
+  |  settp TAB:RA, TAB:RB, LJ_TTAB	// TAB:RB = GCtab *
+  |  lea RB, [DISPATCH+DISPATCH_GL(tmptv)]  // Store fn->l.env in g->tmptv.
+  |  mov [RB], TAB:RA
+  |  jmp >2
+  |
+  |->vmeta_tsetb:
+  |  movzx RCd, PC_RC
+  |.if DUALNUM
+  |  setint RC
+  |  mov TMP1, RC
+  |.else
+  |  cvtsi2sd xmm0, RCd
+  |  movsd TMP1, xmm0
+  |.endif
+  |  lea RC, TMP1
+  |  jmp >1
+  |
+  |->vmeta_tsetv:
+  |  movzx RCd, PC_RC			// Reload TValue *k from RC.
+  |  lea RC, [BASE+RC*8]
+  |1:
+  |  movzx RBd, PC_RB			// Reload TValue *t from RB.
+  |  lea RB, [BASE+RB*8]
+  |2:
+  |  mov L:CARG1, SAVE_L
+  |  mov L:CARG1->base, BASE		// Caveat: CARG2/CARG3 may be BASE.
+  |  mov CARG2, RB
+  |  mov CARG3, RC
+  |  mov L:RB, L:CARG1
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_tset		// (lua_State *L, TValue *o, TValue *k)
+  |  // TValue * (finished) or NULL (metamethod) returned in eax (RC).
+  |  mov BASE, L:RB->base
+  |  test RC, RC
+  |  jz >3
+  |  // NOBARRIER: lj_meta_tset ensures the table is not black.
+  |  movzx RAd, PC_RA
+  |  mov RB, [BASE+RA*8]
+  |  mov [RC], RB
+  |->cont_nop:				// BASE = base, (RC = result)
+  |  ins_next
+  |
+  |3:  // Call __newindex metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k/(v)
+  |  mov RA, L:RB->top
+  |  mov [RA-24], PC			// [cont|PC]
+  |  movzx RCd, PC_RA
+  |  // Copy value to third argument.
+  |  mov RB, [BASE+RC*8]
+  |  mov [RA+16], RB
+  |  lea PC, [RA+FRAME_CONT]
+  |  sub PC, BASE
+  |  mov LFUNC:RB, [RA-16]		// Guaranteed to be a function here.
+  |  mov NARGS:RDd, 3+1			// 3 args for func(t, k, v).
+  |  cleartp LFUNC:RB
+  |  jmp ->vm_call_dispatch_f
+  |
+  |->vmeta_tsetr:
+  |.if X64WIN
+  |  mov L:CARG1, SAVE_L
+  |  mov CARG3d, RCd
+  |  mov L:CARG1->base, BASE
+  |  xchg CARG2, TAB:RB			// Caveat: CARG2 == BASE.
+  |.else
+  |  mov L:CARG1, SAVE_L
+  |  mov CARG2, TAB:RB
+  |  mov L:CARG1->base, BASE
+  |  mov RB, BASE			// Save BASE.
+  |  mov CARG3d, RCd			// Caveat: CARG3 == BASE.
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_tab_setinth  // (lua_State *L, GCtab *t, int32_t key)
+  |  // TValue * returned in eax (RC).
+  |  movzx RAd, PC_RA
+  |  mov BASE, RB			// Restore BASE.
+  |  jmp ->BC_TSETR_Z
+  |
+  |//-- Comparison metamethods ---------------------------------------------
+  |
+  |->vmeta_comp:
+  |  movzx RDd, PC_RD
+  |  movzx RAd, PC_RA
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG2/CARG3 == BASE.
+  |.if X64WIN
+  |  lea CARG3, [BASE+RD*8]
+  |  lea CARG2, [BASE+RA*8]
+  |.else
+  |  lea CARG2, [BASE+RA*8]
+  |  lea CARG3, [BASE+RD*8]
+  |.endif
+  |  mov CARG1, L:RB			// Caveat: CARG1/CARG4 == RA.
+  |  movzx CARG4d, PC_OP
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_comp	// (lua_State *L, TValue *o1, *o2, int op)
+  |  // 0/1 or TValue * (metamethod) returned in eax (RC).
+  |3:
+  |  mov BASE, L:RB->base
+  |  cmp RC, 1
+  |  ja ->vmeta_binop
+  |4:
+  |  lea PC, [PC+4]
+  |  jb >6
+  |5:
+  |  movzx RDd, PC_RD
+  |  branchPC RD
+  |6:
+  |  ins_next
+  |
+  |->cont_condt:			// BASE = base, RC = result
+  |  add PC, 4
+  |  mov ITYPE, [RC]
+  |  sar ITYPE, 47
+  |  cmp ITYPEd, LJ_TISTRUECOND		// Branch if result is true.
+  |  jb <5
+  |  jmp <6
+  |
+  |->cont_condf:			// BASE = base, RC = result
+  |  mov ITYPE, [RC]
+  |  sar ITYPE, 47
+  |  cmp ITYPEd, LJ_TISTRUECOND		// Branch if result is false.
+  |  jmp <4
+  |
+  |->vmeta_equal:
+  |  cleartp TAB:RD
+  |  sub PC, 4
+  |.if X64WIN
+  |  mov CARG3, RD
+  |  mov CARG4d, RBd
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG2 == BASE.
+  |  mov CARG2, RA
+  |  mov CARG1, L:RB			// Caveat: CARG1 == RA.
+  |.else
+  |  mov CARG2, RA
+  |  mov CARG4d, RBd			// Caveat: CARG4 == RA.
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG3 == BASE.
+  |  mov CARG3, RD
+  |  mov CARG1, L:RB
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_equal	// (lua_State *L, GCobj *o1, *o2, int ne)
+  |  // 0/1 or TValue * (metamethod) returned in eax (RC).
+  |  jmp <3
+  |
+  |->vmeta_equal_cd:
+  |.if FFI
+  |  sub PC, 4
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov CARG1, L:RB
+  |  mov CARG2d, dword [PC-4]
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_equal_cd	// (lua_State *L, BCIns ins)
+  |  // 0/1 or TValue * (metamethod) returned in eax (RC).
+  |  jmp <3
+  |.endif
+  |
+  |->vmeta_istype:
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG2/CARG3 may be BASE.
+  |  mov CARG2d, RAd
+  |  mov CARG3d, RDd
+  |  mov L:CARG1, L:RB
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_istype  // (lua_State *L, BCReg ra, BCReg tp)
+  |  mov BASE, L:RB->base
+  |  jmp <6
+  |
+  |//-- Arithmetic metamethods ---------------------------------------------
+  |
+  |->vmeta_arith_vno:
+  |.if DUALNUM
+  |  movzx RBd, PC_RB
+  |  movzx RCd, PC_RC
+  |.endif
+  |->vmeta_arith_vn:
+  |  lea RC, [KBASE+RC*8]
+  |  jmp >1
+  |
+  |->vmeta_arith_nvo:
+  |.if DUALNUM
+  |  movzx RBd, PC_RB
+  |  movzx RCd, PC_RC
+  |.endif
+  |->vmeta_arith_nv:
+  |  lea TMPR, [KBASE+RC*8]
+  |  lea RC, [BASE+RB*8]
+  |  mov RB, TMPR
+  |  jmp >2
+  |
+  |->vmeta_unm:
+  |  lea RC, [BASE+RD*8]
+  |  mov RB, RC
+  |  jmp >2
+  |
+  |->vmeta_arith_vvo:
+  |.if DUALNUM
+  |  movzx RBd, PC_RB
+  |  movzx RCd, PC_RC
+  |.endif
+  |->vmeta_arith_vv:
+  |  lea RC, [BASE+RC*8]
+  |1:
+  |  lea RB, [BASE+RB*8]
+  |2:
+  |  lea RA, [BASE+RA*8]
+  |.if X64WIN
+  |  mov CARG3, RB
+  |  mov CARG4, RC
+  |  movzx RCd, PC_OP
+  |  mov ARG5d, RCd
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG2 == BASE.
+  |  mov CARG2, RA
+  |  mov CARG1, L:RB			// Caveat: CARG1 == RA.
+  |.else
+  |  movzx CARG5d, PC_OP
+  |  mov CARG2, RA
+  |  mov CARG4, RC			// Caveat: CARG4 == RA.
+  |  mov L:CARG1, SAVE_L
+  |  mov L:CARG1->base, BASE		// Caveat: CARG3 == BASE.
+  |  mov CARG3, RB
+  |  mov L:RB, L:CARG1
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_arith	// (lua_State *L, TValue *ra,*rb,*rc, BCReg op)
+  |  // NULL (finished) or TValue * (metamethod) returned in eax (RC).
+  |  mov BASE, L:RB->base
+  |  test RC, RC
+  |  jz ->cont_nop
+  |
+  |  // Call metamethod for binary op.
+  |->vmeta_binop:
+  |  // BASE = base, RC = new base, stack = cont/func/o1/o2
+  |  mov RA, RC
+  |  sub RC, BASE
+  |  mov [RA-24], PC			// [cont|PC]
+  |  lea PC, [RC+FRAME_CONT]
+  |  mov NARGS:RDd, 2+1			// 2 args for func(o1, o2).
+  |  jmp ->vm_call_dispatch
+  |
+  |->vmeta_len:
+  |  movzx RDd, PC_RD
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  lea CARG2, [BASE+RD*8]		// Caveat: CARG2 == BASE
+  |  mov L:CARG1, L:RB
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_len		// (lua_State *L, TValue *o)
+  |  // NULL (retry) or TValue * (metamethod) returned in eax (RC).
+  |  mov BASE, L:RB->base
+#if LJ_52
+  |  test RC, RC
+  |  jne ->vmeta_binop			// Binop call for compatibility.
+  |  movzx RDd, PC_RD
+  |  mov TAB:CARG1, [BASE+RD*8]
+  |  cleartp TAB:CARG1
+  |  jmp ->BC_LEN_Z
+#else
+  |  jmp ->vmeta_binop			// Binop call for compatibility.
+#endif
+  |
+  |//-- Call metamethod ----------------------------------------------------
+  |
+  |->vmeta_call_ra:
+  |  lea RA, [BASE+RA*8+16]
+  |->vmeta_call:			// Resolve and call __call metamethod.
+  |  // BASE = old base, RA = new base, RC = nargs+1, PC = return
+  |  mov TMP1d, NARGS:RDd		// Save RA, RC for us.
+  |  mov RB, RA
+  |.if X64WIN
+  |  mov L:TMPR, SAVE_L
+  |  mov L:TMPR->base, BASE		// Caveat: CARG2 is BASE.
+  |  lea CARG2, [RA-16]
+  |  lea CARG3, [RA+NARGS:RD*8-8]
+  |  mov CARG1, L:TMPR			// Caveat: CARG1 is RA.
+  |.else
+  |  mov L:CARG1, SAVE_L
+  |  mov L:CARG1->base, BASE		// Caveat: CARG3 is BASE.
+  |  lea CARG2, [RA-16]
+  |  lea CARG3, [RA+NARGS:RD*8-8]
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |  mov RA, RB
+  |  mov L:RB, SAVE_L
+  |  mov BASE, L:RB->base
+  |  mov NARGS:RDd, TMP1d
+  |  mov LFUNC:RB, [RA-16]
+  |  add NARGS:RDd, 1
+  |  // This is fragile. L->base must not move, KBASE must always be defined.
+  |  cmp KBASE, BASE			// Continue with CALLT if flag set.
+  |  je ->BC_CALLT_Z
+  |  cleartp LFUNC:RB
+  |  mov BASE, RA
+  |  ins_call				// Otherwise call resolved metamethod.
+  |
+  |//-- Argument coercion for 'for' statement ------------------------------
+  |
+  |->vmeta_for:
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov CARG2, RA			// Caveat: CARG2 == BASE
+  |  mov L:CARG1, L:RB			// Caveat: CARG1 == RA
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_for	// (lua_State *L, TValue *base)
+  |  mov BASE, L:RB->base
+  |  mov RCd, [PC-4]
+  |  movzx RAd, RCH
+  |  movzx OP, RCL
+  |  shr RCd, 16
+  |  jmp aword [DISPATCH+OP*8+GG_DISP2STATIC]	// Retry FORI or JFORI.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Fast functions -----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro .ffunc, name
+  |->ff_ .. name:
+  |.endmacro
+  |
+  |.macro .ffunc_1, name
+  |->ff_ .. name:
+  |  cmp NARGS:RDd, 1+1;  jb ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_2, name
+  |->ff_ .. name:
+  |  cmp NARGS:RDd, 2+1;  jb ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_n, name, op
+  |  .ffunc_1 name
+  |  checknumtp [BASE], ->fff_fallback
+  |  op xmm0, qword [BASE]
+  |.endmacro
+  |
+  |.macro .ffunc_n, name
+  |  .ffunc_n name, movsd
+  |.endmacro
+  |
+  |.macro .ffunc_nn, name
+  |  .ffunc_2 name
+  |  checknumtp [BASE], ->fff_fallback
+  |  checknumtp [BASE+8], ->fff_fallback
+  |  movsd xmm0, qword [BASE]
+  |  movsd xmm1, qword [BASE+8]
+  |.endmacro
+  |
+  |// Inlined GC threshold check. Caveat: uses label 1.
+  |.macro ffgccheck
+  |  mov RB, [DISPATCH+DISPATCH_GL(gc.total)]
+  |  cmp RB, [DISPATCH+DISPATCH_GL(gc.threshold)]
+  |  jb >1
+  |  call ->fff_gcstep
+  |1:
+  |.endmacro
+  |
+  |//-- Base library: checks -----------------------------------------------
+  |
+  |.ffunc_1 assert
+  |  mov ITYPE, [BASE]
+  |  mov RB, ITYPE
+  |  sar ITYPE, 47
+  |  cmp ITYPEd, LJ_TISTRUECOND; jae ->fff_fallback
+  |  mov PC, [BASE-8]
+  |  mov MULTRES, RDd
+  |  mov RB, [BASE]
+  |  mov [BASE-16], RB
+  |  sub RDd, 2
+  |  jz >2
+  |  mov RA, BASE
+  |1:
+  |  add RA, 8
+  |  mov RB, [RA]
+  |  mov [RA-16], RB
+  |  sub RDd, 1
+  |  jnz <1
+  |2:
+  |  mov RDd, MULTRES
+  |  jmp ->fff_res_
+  |
+  |.ffunc_1 type
+  |  mov RC, [BASE]
+  |  sar RC, 47
+  |  mov RBd, LJ_TISNUM
+  |  cmp RCd, RBd
+  |  cmovb RCd, RBd
+  |  not RCd
+  |2:
+  |  mov CFUNC:RB, [BASE-16]
+  |  cleartp CFUNC:RB
+  |  mov STR:RC, [CFUNC:RB+RC*8+((char *)(&((GCfuncC *)0)->upvalue))]
+  |  mov PC, [BASE-8]
+  |  settp STR:RC, LJ_TSTR
+  |  mov [BASE-16], STR:RC
+  |  jmp ->fff_res1
+  |
+  |//-- Base library: getters and setters ---------------------------------
+  |
+  |.ffunc_1 getmetatable
+  |  mov TAB:RB, [BASE]
+  |  mov PC, [BASE-8]
+  |  checktab TAB:RB, >6
+  |1:  // Field metatable must be at same offset for GCtab and GCudata!
+  |  mov TAB:RB, TAB:RB->metatable
+  |2:
+  |  test TAB:RB, TAB:RB
+  |  mov aword [BASE-16], LJ_TNIL
+  |  jz ->fff_res1
+  |  settp TAB:RC, TAB:RB, LJ_TTAB
+  |  mov [BASE-16], TAB:RC		// Store metatable as default result.
+  |  mov STR:RC, [DISPATCH+DISPATCH_GL(gcroot)+8*(GCROOT_MMNAME+MM_metatable)]
+  |  mov RAd, TAB:RB->hmask
+  |  and RAd, STR:RC->sid
+  |  settp STR:RC, LJ_TSTR
+  |  imul RAd, #NODE
+  |  add NODE:RA, TAB:RB->node
+  |3:  // Rearranged logic, because we expect _not_ to find the key.
+  |  cmp NODE:RA->key, STR:RC
+  |  je >5
+  |4:
+  |  mov NODE:RA, NODE:RA->next
+  |  test NODE:RA, NODE:RA
+  |  jnz <3
+  |  jmp ->fff_res1			// Not found, keep default result.
+  |5:
+  |  mov RB, NODE:RA->val
+  |  cmp RB, LJ_TNIL; je ->fff_res1	// Ditto for nil value.
+  |  mov [BASE-16], RB			// Return value of mt.__metatable.
+  |  jmp ->fff_res1
+  |
+  |6:
+  |  cmp ITYPEd, LJ_TUDATA; je <1
+  |  cmp ITYPEd, LJ_TISNUM; ja >7
+  |  mov ITYPEd, LJ_TISNUM
+  |7:
+  |  not ITYPEd
+  |  mov TAB:RB, [DISPATCH+ITYPE*8+DISPATCH_GL(gcroot[GCROOT_BASEMT])]
+  |  jmp <2
+  |
+  |.ffunc_2 setmetatable
+  |  mov TAB:RB, [BASE]
+  |  mov TAB:TMPR, TAB:RB
+  |  checktab TAB:RB, ->fff_fallback
+  |  // Fast path: no mt for table yet and not clearing the mt.
+  |  cmp aword TAB:RB->metatable, 0; jne ->fff_fallback
+  |  mov TAB:RA, [BASE+8]
+  |  checktab TAB:RA, ->fff_fallback
+  |  mov TAB:RB->metatable, TAB:RA
+  |  mov PC, [BASE-8]
+  |  mov [BASE-16], TAB:TMPR			// Return original table.
+  |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+  |  jz >1
+  |  // Possible write barrier. Table is black, but skip iswhite(mt) check.
+  |  barrierback TAB:RB, RC
+  |1:
+  |  jmp ->fff_res1
+  |
+  |.ffunc_2 rawget
+  |.if X64WIN
+  |  mov TAB:RA, [BASE]
+  |  checktab TAB:RA, ->fff_fallback
+  |  mov RB, BASE			// Save BASE.
+  |  lea CARG3, [BASE+8]
+  |  mov CARG2, TAB:RA			// Caveat: CARG2 == BASE.
+  |  mov CARG1, SAVE_L
+  |.else
+  |  mov TAB:CARG2, [BASE]
+  |  checktab TAB:CARG2, ->fff_fallback
+  |  mov RB, BASE			// Save BASE.
+  |  lea CARG3, [BASE+8]		// Caveat: CARG3 == BASE.
+  |  mov CARG1, SAVE_L
+  |.endif
+  |  call extern lj_tab_get	// (lua_State *L, GCtab *t, cTValue *key)
+  |  // cTValue * returned in eax (RD).
+  |  mov BASE, RB			// Restore BASE.
+  |  // Copy table slot.
+  |  mov RB, [RD]
+  |  mov PC, [BASE-8]
+  |  mov [BASE-16], RB
+  |  jmp ->fff_res1
+  |
+  |//-- Base library: conversions ------------------------------------------
+  |
+  |.ffunc tonumber
+  |  // Only handles the number case inline (without a base argument).
+  |  cmp NARGS:RDd, 1+1;  jne ->fff_fallback	// Exactly one argument.
+  |  mov RB, [BASE]
+  |  checknumber RB, ->fff_fallback
+  |  mov PC, [BASE-8]
+  |  mov [BASE-16], RB
+  |  jmp ->fff_res1
+  |
+  |.ffunc_1 tostring
+  |  // Only handles the string or number case inline.
+  |  mov PC, [BASE-8]
+  |  mov STR:RB, [BASE]
+  |  checktp_nc STR:RB, LJ_TSTR, >3
+  |  // A __tostring method in the string base metatable is ignored.
+  |2:
+  |  mov [BASE-16], STR:RB
+  |  jmp ->fff_res1
+  |3:  // Handle numbers inline, unless a number base metatable is present.
+  |  cmp ITYPEd, LJ_TISNUM;  ja ->fff_fallback_1
+  |  cmp aword [DISPATCH+DISPATCH_GL(gcroot[GCROOT_BASEMT_NUM])], 0
+  |  jne ->fff_fallback
+  |  ffgccheck				// Caveat: uses label 1.
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Add frame since C call can throw.
+  |  mov SAVE_PC, PC			// Redundant (but a defined value).
+  |.if not X64WIN
+  |  mov CARG2, BASE			// Otherwise: CARG2 == BASE
+  |.endif
+  |  mov L:CARG1, L:RB
+  |.if DUALNUM
+  |  call extern lj_strfmt_number	// (lua_State *L, cTValue *o)
+  |.else
+  |  call extern lj_strfmt_num		// (lua_State *L, lua_Number *np)
+  |.endif
+  |  // GCstr returned in eax (RD).
+  |  mov BASE, L:RB->base
+  |  settp STR:RB, RD, LJ_TSTR
+  |  jmp <2
+  |
+  |//-- Base library: iterators -------------------------------------------
+  |
+  |.ffunc_1 next
+  |  je >2				// Missing 2nd arg?
+  |1:
+  |  mov CARG1, [BASE]
+  |  mov PC, [BASE-8]
+  |  checktab CARG1, ->fff_fallback
+  |  mov RB, BASE			// Save BASE.
+  |.if X64WIN
+  |  lea CARG3, [BASE-16]
+  |  lea CARG2, [BASE+8]		// Caveat: CARG2 == BASE.
+  |.else
+  |  lea CARG2, [BASE+8]
+  |  lea CARG3, [BASE-16]		// Caveat: CARG3 == BASE.
+  |.endif
+  |  call extern lj_tab_next		// (GCtab *t, cTValue *key, TValue *o)
+  |  // 1=found, 0=end, -1=error returned in eax (RD).
+  |  mov BASE, RB			// Restore BASE.
+  |  test RDd, RDd;  jg ->fff_res2	// Found key/value.
+  |  js ->fff_fallback_2		// Invalid key.
+  |  // End of traversal: return nil.
+  |  mov aword [BASE-16], LJ_TNIL
+  |  jmp ->fff_res1
+  |2:  // Set missing 2nd arg to nil.
+  |  mov aword [BASE+8], LJ_TNIL
+  |  jmp <1
+  |
+  |.ffunc_1 pairs
+  |  mov TAB:RB, [BASE]
+  |  mov TMPR, TAB:RB
+  |  checktab TAB:RB, ->fff_fallback
+#if LJ_52
+  |  cmp aword TAB:RB->metatable, 0; jne ->fff_fallback
+#endif
+  |  mov CFUNC:RD, [BASE-16]
+  |  cleartp CFUNC:RD
+  |  mov CFUNC:RD, CFUNC:RD->upvalue[0]
+  |  settp CFUNC:RD, LJ_TFUNC
+  |  mov PC, [BASE-8]
+  |  mov [BASE-16], CFUNC:RD
+  |  mov [BASE-8], TMPR
+  |  mov aword [BASE], LJ_TNIL
+  |  mov RDd, 1+3
+  |  jmp ->fff_res
+  |
+  |.ffunc_2 ipairs_aux
+  |  mov TAB:RB, [BASE]
+  |  checktab TAB:RB, ->fff_fallback
+  |.if DUALNUM
+  |  mov RA, [BASE+8]
+  |  checkint RA, ->fff_fallback
+  |.else
+  |  checknumtp [BASE+8], ->fff_fallback
+  |  movsd xmm0, qword [BASE+8]
+  |.endif
+  |  mov PC, [BASE-8]
+  |.if DUALNUM
+  |  add RAd, 1
+  |  setint ITYPE, RA
+  |  mov [BASE-16], ITYPE
+  |.else
+  |  sseconst_1 xmm1, TMPR
+  |  addsd xmm0, xmm1
+  |  cvttsd2si RAd, xmm0
+  |  movsd qword [BASE-16], xmm0
+  |.endif
+  |  cmp RAd, TAB:RB->asize;  jae >2	// Not in array part?
+  |  mov RD, TAB:RB->array
+  |  lea RD, [RD+RA*8]
+  |1:
+  |  cmp aword [RD], LJ_TNIL;  je ->fff_res0
+  |  // Copy array slot.
+  |  mov RB, [RD]
+  |  mov [BASE-8], RB
+  |->fff_res2:
+  |  mov RDd, 1+2
+  |  jmp ->fff_res
+  |2:  // Check for empty hash part first. Otherwise call C function.
+  |  cmp dword TAB:RB->hmask, 0; je ->fff_res0
+  |.if X64WIN
+  |  mov TMPR, BASE
+  |  mov CARG2d, RAd
+  |  mov CARG1, TAB:RB
+  |  mov RB, TMPR
+  |.else
+  |  mov CARG1, TAB:RB
+  |  mov RB, BASE			// Save BASE.
+  |  mov CARG2d, RAd			// Caveat: CARG2 == BASE
+  |.endif
+  |  call extern lj_tab_getinth		// (GCtab *t, int32_t key)
+  |  // cTValue * or NULL returned in eax (RD).
+  |  mov BASE, RB
+  |  test RD, RD
+  |  jnz <1
+  |->fff_res0:
+  |  mov RDd, 1+0
+  |  jmp ->fff_res
+  |
+  |.ffunc_1 ipairs
+  |  mov TAB:RB, [BASE]
+  |  mov TMPR, TAB:RB
+  |  checktab TAB:RB, ->fff_fallback
+#if LJ_52
+  |  cmp aword TAB:RB->metatable, 0; jne ->fff_fallback
+#endif
+  |  mov CFUNC:RD, [BASE-16]
+  |  cleartp CFUNC:RD
+  |  mov CFUNC:RD, CFUNC:RD->upvalue[0]
+  |  settp CFUNC:RD, LJ_TFUNC
+  |  mov PC, [BASE-8]
+  |  mov [BASE-16], CFUNC:RD
+  |  mov [BASE-8], TMPR
+  |.if DUALNUM
+  |  mov64 RD, ((uint64_t)LJ_TISNUM<<47)
+  |  mov [BASE], RD
+  |.else
+  |  mov qword [BASE], 0
+  |.endif
+  |  mov RDd, 1+3
+  |  jmp ->fff_res
+  |
+  |//-- Base library: catch errors ----------------------------------------
+  |
+  |.ffunc_1 pcall
+  |  lea RA, [BASE+16]
+  |  sub NARGS:RDd, 1
+  |  mov PCd, 16+FRAME_PCALL
+  |1:
+  |  movzx RBd, byte [DISPATCH+DISPATCH_GL(hookmask)]
+  |  shr RB, HOOK_ACTIVE_SHIFT
+  |  and RB, 1
+  |  add PC, RB				// Remember active hook before pcall.
+  |  // Note: this does a (harmless) copy of the function to the PC slot, too.
+  |  mov KBASE, RD
+  |2:
+  |  mov RB, [RA+KBASE*8-24]
+  |  mov [RA+KBASE*8-16], RB
+  |  sub KBASE, 1
+  |  ja <2
+  |  jmp ->vm_call_dispatch
+  |
+  |.ffunc_2 xpcall
+  |  mov LFUNC:RA, [BASE+8]
+  |  checktp_nc LFUNC:RA, LJ_TFUNC, ->fff_fallback
+  |  mov LFUNC:RB, [BASE]		// Swap function and traceback.
+  |  mov [BASE], LFUNC:RA
+  |  mov [BASE+8], LFUNC:RB
+  |  lea RA, [BASE+24]
+  |  sub NARGS:RDd, 2
+  |  mov PCd, 24+FRAME_PCALL
+  |  jmp <1
+  |
+  |//-- Coroutine library --------------------------------------------------
+  |
+  |.macro coroutine_resume_wrap, resume
+  |.if resume
+  |.ffunc_1 coroutine_resume
+  |  mov L:RB, [BASE]
+  |  cleartp L:RB
+  |.else
+  |.ffunc coroutine_wrap_aux
+  |  mov CFUNC:RB, [BASE-16]
+  |  cleartp CFUNC:RB
+  |  mov L:RB, CFUNC:RB->upvalue[0].gcr
+  |  cleartp L:RB
+  |.endif
+  |  mov PC, [BASE-8]
+  |  mov SAVE_PC, PC
+  |  mov TMP1, L:RB
+  |.if resume
+  |  checktptp [BASE], LJ_TTHREAD, ->fff_fallback
+  |.endif
+  |  cmp aword L:RB->cframe, 0; jne ->fff_fallback
+  |  cmp byte L:RB->status, LUA_YIELD;  ja ->fff_fallback
+  |  mov RA, L:RB->top
+  |  je >1				// Status != LUA_YIELD (i.e. 0)?
+  |  cmp RA, L:RB->base			// Check for presence of initial func.
+  |  je ->fff_fallback
+  |  mov PC, [RA-8]			// Move initial function up.
+  |  mov [RA], PC
+  |  add RA, 8
+  |1:
+  |.if resume
+  |  lea PC, [RA+NARGS:RD*8-16]		// Check stack space (-1-thread).
+  |.else
+  |  lea PC, [RA+NARGS:RD*8-8]		// Check stack space (-1).
+  |.endif
+  |  cmp PC, L:RB->maxstack; ja ->fff_fallback
+  |  mov L:RB->top, PC
+  |
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |.if resume
+  |  add BASE, 8			// Keep resumed thread in stack for GC.
+  |.endif
+  |  mov L:RB->top, BASE
+  |.if resume
+  |  lea RB, [BASE+NARGS:RD*8-24]	// RB = end of source for stack move.
+  |.else
+  |  lea RB, [BASE+NARGS:RD*8-16]	// RB = end of source for stack move.
+  |.endif
+  |  sub RB, PC			// Relative to PC.
+  |
+  |  cmp PC, RA
+  |  je >3
+  |2:  // Move args to coroutine.
+  |  mov RC, [PC+RB]
+  |  mov [PC-8], RC
+  |  sub PC, 8
+  |  cmp PC, RA
+  |  jne <2
+  |3:
+  |  mov CARG2, RA
+  |  mov CARG1, TMP1
+  |  call ->vm_resume			// (lua_State *L, TValue *base, 0, 0)
+  |
+  |  mov L:RB, SAVE_L
+  |  mov L:PC, TMP1
+  |  mov BASE, L:RB->base
+  |  mov [DISPATCH+DISPATCH_GL(cur_L)], L:RB
+  |  set_vmstate INTERP
+  |
+  |  cmp eax, LUA_YIELD
+  |  ja >8
+  |4:
+  |  mov RA, L:PC->base
+  |  mov KBASE, L:PC->top
+  |  mov L:PC->top, RA			// Clear coroutine stack.
+  |  mov PC, KBASE
+  |  sub PC, RA
+  |  je >6				// No results?
+  |  lea RD, [BASE+PC]
+  |  shr PCd, 3
+  |  cmp RD, L:RB->maxstack
+  |  ja >9				// Need to grow stack?
+  |
+  |  mov RB, BASE
+  |  sub RB, RA
+  |5:  // Move results from coroutine.
+  |  mov RD, [RA]
+  |  mov [RA+RB], RD
+  |  add RA, 8
+  |  cmp RA, KBASE
+  |  jne <5
+  |6:
+  |.if resume
+  |  lea RDd, [PCd+2]			// nresults+1 = 1 + true + results.
+  |  mov_true ITYPE			// Prepend true to results.
+  |  mov [BASE-8], ITYPE
+  |.else
+  |  lea RDd, [PCd+1]			// nresults+1 = 1 + results.
+  |.endif
+  |7:
+  |  mov PC, SAVE_PC
+  |  mov MULTRES, RDd
+  |.if resume
+  |  mov RA, -8
+  |.else
+  |  xor RAd, RAd
+  |.endif
+  |  test PCd, FRAME_TYPE
+  |  jz ->BC_RET_Z
+  |  jmp ->vm_return
+  |
+  |8:  // Coroutine returned with error (at co->top-1).
+  |.if resume
+  |  mov_false ITYPE			// Prepend false to results.
+  |  mov [BASE-8], ITYPE
+  |  mov RA, L:PC->top
+  |  sub RA, 8
+  |  mov L:PC->top, RA			// Clear error from coroutine stack.
+  |  // Copy error message.
+  |  mov RD, [RA]
+  |  mov [BASE], RD
+  |  mov RDd, 1+2			// nresults+1 = 1 + false + error.
+  |  jmp <7
+  |.else
+  |  mov CARG2, L:PC
+  |  mov CARG1, L:RB
+  |  call extern lj_ffh_coroutine_wrap_err  // (lua_State *L, lua_State *co)
+  |  // Error function does not return.
+  |.endif
+  |
+  |9:  // Handle stack expansion on return from yield.
+  |  mov L:RA, TMP1
+  |  mov L:RA->top, KBASE		// Undo coroutine stack clearing.
+  |  mov CARG2, PC
+  |  mov CARG1, L:RB
+  |  call extern lj_state_growstack	// (lua_State *L, int n)
+  |  mov L:PC, TMP1
+  |  mov BASE, L:RB->base
+  |  jmp <4				// Retry the stack move.
+  |.endmacro
+  |
+  |  coroutine_resume_wrap 1		// coroutine.resume
+  |  coroutine_resume_wrap 0		// coroutine.wrap
+  |
+  |.ffunc coroutine_yield
+  |  mov L:RB, SAVE_L
+  |  test aword L:RB->cframe, CFRAME_RESUME
+  |  jz ->fff_fallback
+  |  mov L:RB->base, BASE
+  |  lea RD, [BASE+NARGS:RD*8-8]
+  |  mov L:RB->top, RD
+  |  xor RDd, RDd
+  |  mov aword L:RB->cframe, RD
+  |  mov al, LUA_YIELD
+  |  mov byte L:RB->status, al
+  |  jmp ->vm_leave_unw
+  |
+  |//-- Math library -------------------------------------------------------
+  |
+  |  .ffunc_1 math_abs
+  |  mov RB, [BASE]
+  |.if DUALNUM
+  |  checkint RB, >3
+  |  cmp RBd, 0; jns ->fff_resi
+  |  neg RBd; js >2
+  |->fff_resbit:
+  |->fff_resi:
+  |  setint RB
+  |->fff_resRB:
+  |  mov PC, [BASE-8]
+  |  mov [BASE-16], RB
+  |  jmp ->fff_res1
+  |2:
+  |  mov64 RB, U64x(41e00000,00000000)  // 2^31.
+  |  jmp ->fff_resRB
+  |3:
+  |  ja ->fff_fallback
+  |.else
+  |  checknum RB, ->fff_fallback
+  |.endif
+  |  shl RB, 1
+  |  shr RB, 1
+  |  mov PC, [BASE-8]
+  |  mov [BASE-16], RB
+  |  jmp ->fff_res1
+  |
+  |.ffunc_n math_sqrt, sqrtsd
+  |->fff_resxmm0:
+  |  mov PC, [BASE-8]
+  |  movsd qword [BASE-16], xmm0
+  |  // fallthrough
+  |
+  |->fff_res1:
+  |  mov RDd, 1+1
+  |->fff_res:
+  |  mov MULTRES, RDd
+  |->fff_res_:
+  |  test PCd, FRAME_TYPE
+  |  jnz >7
+  |5:
+  |  cmp PC_RB, RDL			// More results expected?
+  |  ja >6
+  |  // Adjust BASE. KBASE is assumed to be set for the calling frame.
+  |  movzx RAd, PC_RA
+  |  neg RA
+  |  lea BASE, [BASE+RA*8-16]		// base = base - (RA+2)*8
+  |  ins_next
+  |
+  |6:  // Fill up results with nil.
+  |  mov aword [BASE+RD*8-24], LJ_TNIL
+  |  add RD, 1
+  |  jmp <5
+  |
+  |7:  // Non-standard return case.
+  |  mov RA, -16			// Results start at BASE+RA = BASE-16.
+  |  jmp ->vm_return
+  |
+  |.macro math_round, func
+  |  .ffunc math_ .. func
+  |.if DUALNUM
+  |  mov RB, [BASE]
+  |  checknumx RB, ->fff_resRB, je
+  |  ja ->fff_fallback
+  |.else
+  |  checknumtp [BASE], ->fff_fallback
+  |.endif
+  |  movsd xmm0, qword [BASE]
+  |  call ->vm_ .. func .. _sse
+  |.if DUALNUM
+  |  cvttsd2si RBd, xmm0
+  |  cmp RBd, 0x80000000
+  |  jne ->fff_resi
+  |  cvtsi2sd xmm1, RBd
+  |  ucomisd xmm0, xmm1
+  |  jp ->fff_resxmm0
+  |  je ->fff_resi
+  |.endif
+  |  jmp ->fff_resxmm0
+  |.endmacro
+  |
+  |  math_round floor
+  |  math_round ceil
+  |
+  |.ffunc math_log
+  |  cmp NARGS:RDd, 1+1; jne ->fff_fallback	// Exactly one argument.
+  |  checknumtp [BASE], ->fff_fallback
+  |  movsd xmm0, qword [BASE]
+  |  mov RB, BASE
+  |  call extern log
+  |  mov BASE, RB
+  |  jmp ->fff_resxmm0
+  |
+  |.macro math_extern, func
+  |  .ffunc_n math_ .. func
+  |  mov RB, BASE
+  |  call extern func
+  |  mov BASE, RB
+  |  jmp ->fff_resxmm0
+  |.endmacro
+  |
+  |.macro math_extern2, func
+  |  .ffunc_nn math_ .. func
+  |  mov RB, BASE
+  |  call extern func
+  |  mov BASE, RB
+  |  jmp ->fff_resxmm0
+  |.endmacro
+  |
+  |  math_extern log10
+  |  math_extern exp
+  |  math_extern sin
+  |  math_extern cos
+  |  math_extern tan
+  |  math_extern asin
+  |  math_extern acos
+  |  math_extern atan
+  |  math_extern sinh
+  |  math_extern cosh
+  |  math_extern tanh
+  |  math_extern2 pow
+  |  math_extern2 atan2
+  |  math_extern2 fmod
+  |
+  |.ffunc_2 math_ldexp
+  |  checknumtp [BASE], ->fff_fallback
+  |  checknumtp [BASE+8], ->fff_fallback
+  |  fld qword [BASE+8]
+  |  fld qword [BASE]
+  |  fscale
+  |  fpop1
+  |  mov PC, [BASE-8]
+  |  fstp qword [BASE-16]
+  |  jmp ->fff_res1
+  |
+  |.ffunc_n math_frexp
+  |  mov RB, BASE
+  |.if X64WIN
+  |  lea CARG2, TMP1		// Caveat: CARG2 == BASE
+  |.else
+  |  lea CARG1, TMP1
+  |.endif
+  |  call extern frexp
+  |  mov BASE, RB
+  |  mov RBd, TMP1d
+  |  mov PC, [BASE-8]
+  |  movsd qword [BASE-16], xmm0
+  |.if DUALNUM
+  |  setint RB
+  |  mov [BASE-8], RB
+  |.else
+  |  cvtsi2sd xmm1, RBd
+  |  movsd qword [BASE-8], xmm1
+  |.endif
+  |  mov RDd, 1+2
+  |  jmp ->fff_res
+  |
+  |.ffunc_n math_modf
+  |  mov RB, BASE
+  |.if X64WIN
+  |  lea CARG2, [BASE-16]	// Caveat: CARG2 == BASE
+  |.else
+  |  lea CARG1, [BASE-16]
+  |.endif
+  |  call extern modf
+  |  mov BASE, RB
+  |  mov PC, [BASE-8]
+  |  movsd qword [BASE-8], xmm0
+  |  mov RDd, 1+2
+  |  jmp ->fff_res
+  |
+  |.macro math_minmax, name, cmovop, sseop
+  |  .ffunc_1 name
+  |  mov RAd, 2
+  |.if DUALNUM
+  |  mov RB, [BASE]
+  |  checkint RB, >4
+  |1:  // Handle integers.
+  |  cmp RAd, RDd; jae ->fff_resRB
+  |  mov TMPR, [BASE+RA*8-8]
+  |  checkint TMPR, >3
+  |  cmp RBd, TMPRd
+  |  cmovop RB, TMPR
+  |  add RAd, 1
+  |  jmp <1
+  |3:
+  |  ja ->fff_fallback
+  |  // Convert intermediate result to number and continue below.
+  |  cvtsi2sd xmm0, RBd
+  |  jmp >6
+  |4:
+  |  ja ->fff_fallback
+  |.else
+  |  checknumtp [BASE], ->fff_fallback
+  |.endif
+  |
+  |  movsd xmm0, qword [BASE]
+  |5:  // Handle numbers or integers.
+  |  cmp RAd, RDd; jae ->fff_resxmm0
+  |.if DUALNUM
+  |  mov RB, [BASE+RA*8-8]
+  |  checknumx RB, >6, jb
+  |  ja ->fff_fallback
+  |  cvtsi2sd xmm1, RBd
+  |  jmp >7
+  |.else
+  |  checknumtp [BASE+RA*8-8], ->fff_fallback
+  |.endif
+  |6:
+  |  movsd xmm1, qword [BASE+RA*8-8]
+  |7:
+  |  sseop xmm0, xmm1
+  |  add RAd, 1
+  |  jmp <5
+  |.endmacro
+  |
+  |  math_minmax math_min, cmovg, minsd
+  |  math_minmax math_max, cmovl, maxsd
+  |
+  |//-- String library -----------------------------------------------------
+  |
+  |.ffunc string_byte			// Only handle the 1-arg case here.
+  |  cmp NARGS:RDd, 1+1;  jne ->fff_fallback
+  |  mov STR:RB, [BASE]
+  |  checkstr STR:RB, ->fff_fallback
+  |  mov PC, [BASE-8]
+  |  cmp dword STR:RB->len, 1
+  |  jb ->fff_res0			// Return no results for empty string.
+  |  movzx RBd, byte STR:RB[1]
+  |.if DUALNUM
+  |  jmp ->fff_resi
+  |.else
+  |  cvtsi2sd xmm0, RBd; jmp ->fff_resxmm0
+  |.endif
+  |
+  |.ffunc string_char			// Only handle the 1-arg case here.
+  |  ffgccheck
+  |  cmp NARGS:RDd, 1+1;  jne ->fff_fallback	// *Exactly* 1 arg.
+  |.if DUALNUM
+  |  mov RB, [BASE]
+  |  checkint RB, ->fff_fallback
+  |.else
+  |  checknumtp [BASE], ->fff_fallback
+  |  cvttsd2si RBd, qword [BASE]
+  |.endif
+  |  cmp RBd, 255;  ja ->fff_fallback
+  |  mov TMP1d, RBd
+  |  mov TMPRd, 1
+  |  lea RD, TMP1			// Points to stack. Little-endian.
+  |->fff_newstr:
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov CARG3d, TMPRd			// Zero-extended to size_t.
+  |  mov CARG2, RD
+  |  mov CARG1, L:RB
+  |  mov SAVE_PC, PC
+  |  call extern lj_str_new		// (lua_State *L, char *str, size_t l)
+  |->fff_resstr:
+  |  // GCstr * returned in eax (RD).
+  |  mov BASE, L:RB->base
+  |  mov PC, [BASE-8]
+  |  settp STR:RD, LJ_TSTR
+  |  mov [BASE-16], STR:RD
+  |  jmp ->fff_res1
+  |
+  |.ffunc string_sub
+  |  ffgccheck
+  |  mov TMPRd, -1
+  |  cmp NARGS:RDd, 1+2;  jb ->fff_fallback
+  |  jna >1
+  |.if DUALNUM
+  |  mov TMPR, [BASE+16]
+  |  checkint TMPR, ->fff_fallback
+  |.else
+  |  checknumtp [BASE+16], ->fff_fallback
+  |  cvttsd2si TMPRd, qword [BASE+16]
+  |.endif
+  |1:
+  |  mov STR:RB, [BASE]
+  |  checkstr STR:RB, ->fff_fallback
+  |.if DUALNUM
+  |  mov ITYPE, [BASE+8]
+  |  mov RAd, ITYPEd			// Must clear hiword for lea below.
+  |  sar ITYPE, 47
+  |  cmp ITYPEd, LJ_TISNUM
+  |  jne ->fff_fallback
+  |.else
+  |  checknumtp [BASE+8], ->fff_fallback
+  |  cvttsd2si RAd, qword [BASE+8]
+  |.endif
+  |  mov RCd, STR:RB->len
+  |  cmp RCd, TMPRd			// len < end? (unsigned compare)
+  |  jb >5
+  |2:
+  |  test RAd, RAd			// start <= 0?
+  |  jle >7
+  |3:
+  |  sub TMPRd, RAd			// start > end?
+  |  jl ->fff_emptystr
+  |  lea RD, [STR:RB+RAd+#STR-1]
+  |  add TMPRd, 1
+  |4:
+  |  jmp ->fff_newstr
+  |
+  |5:  // Negative end or overflow.
+  |  jl >6
+  |  lea TMPRd, [TMPRd+RCd+1]		// end = end+(len+1)
+  |  jmp <2
+  |6:  // Overflow.
+  |  mov TMPRd, RCd			// end = len
+  |  jmp <2
+  |
+  |7:  // Negative start or underflow.
+  |  je >8
+  |  add RAd, RCd			// start = start+(len+1)
+  |  add RAd, 1
+  |  jg <3				// start > 0?
+  |8:  // Underflow.
+  |  mov RAd, 1				// start = 1
+  |  jmp <3
+  |
+  |->fff_emptystr:  // Range underflow.
+  |  xor TMPRd, TMPRd			// Zero length. Any ptr in RD is ok.
+  |  jmp <4
+  |
+  |.macro ffstring_op, name
+  |  .ffunc_1 string_ .. name
+  |  ffgccheck
+  |.if X64WIN
+  |  mov STR:TMPR, [BASE]
+  |  checkstr STR:TMPR, ->fff_fallback
+  |.else
+  |  mov STR:CARG2, [BASE]
+  |  checkstr STR:CARG2, ->fff_fallback
+  |.endif
+  |  mov L:RB, SAVE_L
+  |   lea SBUF:CARG1, [DISPATCH+DISPATCH_GL(tmpbuf)]
+  |  mov L:RB->base, BASE
+  |.if X64WIN
+  |  mov STR:CARG2, STR:TMPR		// Caveat: CARG2 == BASE
+  |.endif
+  |   mov RC, SBUF:CARG1->b
+  |   mov SBUF:CARG1->L, L:RB
+  |   mov SBUF:CARG1->w, RC
+  |  mov SAVE_PC, PC
+  |  call extern lj_buf_putstr_ .. name
+  |  mov CARG1, rax
+  |  call extern lj_buf_tostr
+  |  jmp ->fff_resstr
+  |.endmacro
+  |
+  |ffstring_op reverse
+  |ffstring_op lower
+  |ffstring_op upper
+  |
+  |//-- Bit library --------------------------------------------------------
+  |
+  |.macro .ffunc_bit, name, kind, fdef
+  |  fdef name
+  |.if kind == 2
+  |  sseconst_tobit xmm1, RB
+  |.endif
+  |.if DUALNUM
+  |  mov RB, [BASE]
+  |  checkint RB, >1
+  |.if kind > 0
+  |  jmp >2
+  |.else
+  |  jmp ->fff_resbit
+  |.endif
+  |1:
+  |  ja ->fff_fallback
+  |  movd xmm0, RB
+  |.else
+  |  checknumtp [BASE], ->fff_fallback
+  |  movsd xmm0, qword [BASE]
+  |.endif
+  |.if kind < 2
+  |  sseconst_tobit xmm1, RB
+  |.endif
+  |  addsd xmm0, xmm1
+  |  movd RBd, xmm0
+  |2:
+  |.endmacro
+  |
+  |.macro .ffunc_bit, name, kind
+  |  .ffunc_bit name, kind, .ffunc_1
+  |.endmacro
+  |
+  |.ffunc_bit bit_tobit, 0
+  |  jmp ->fff_resbit
+  |
+  |.macro .ffunc_bit_op, name, ins
+  |  .ffunc_bit name, 2
+  |  mov TMPRd, NARGS:RDd		// Save for fallback.
+  |  lea RD, [BASE+NARGS:RD*8-16]
+  |1:
+  |  cmp RD, BASE
+  |  jbe ->fff_resbit
+  |.if DUALNUM
+  |  mov RA, [RD]
+  |  checkint RA, >2
+  |  ins RBd, RAd
+  |  sub RD, 8
+  |  jmp <1
+  |2:
+  |  ja ->fff_fallback_bit_op
+  |  movd xmm0, RA
+  |.else
+  |  checknumtp [RD], ->fff_fallback_bit_op
+  |  movsd xmm0, qword [RD]
+  |.endif
+  |  addsd xmm0, xmm1
+  |  movd RAd, xmm0
+  |  ins RBd, RAd
+  |  sub RD, 8
+  |  jmp <1
+  |.endmacro
+  |
+  |.ffunc_bit_op bit_band, and
+  |.ffunc_bit_op bit_bor, or
+  |.ffunc_bit_op bit_bxor, xor
+  |
+  |.ffunc_bit bit_bswap, 1
+  |  bswap RBd
+  |  jmp ->fff_resbit
+  |
+  |.ffunc_bit bit_bnot, 1
+  |  not RBd
+  |.if DUALNUM
+  |  jmp ->fff_resbit
+  |.else
+  |->fff_resbit:
+  |  cvtsi2sd xmm0, RBd
+  |  jmp ->fff_resxmm0
+  |.endif
+  |
+  |->fff_fallback_bit_op:
+  |  mov NARGS:RDd, TMPRd		// Restore for fallback
+  |  jmp ->fff_fallback
+  |
+  |.macro .ffunc_bit_sh, name, ins
+  |.if DUALNUM
+  |  .ffunc_bit name, 1, .ffunc_2
+  |  // Note: no inline conversion from number for 2nd argument!
+  |  mov RA, [BASE+8]
+  |  checkint RA, ->fff_fallback
+  |.else
+  |  .ffunc_nn name
+  |  sseconst_tobit xmm2, RB
+  |  addsd xmm0, xmm2
+  |  addsd xmm1, xmm2
+  |  movd RBd, xmm0
+  |  movd RAd, xmm1
+  |.endif
+  |  ins RBd, cl			// Assumes RA is ecx.
+  |  jmp ->fff_resbit
+  |.endmacro
+  |
+  |.ffunc_bit_sh bit_lshift, shl
+  |.ffunc_bit_sh bit_rshift, shr
+  |.ffunc_bit_sh bit_arshift, sar
+  |.ffunc_bit_sh bit_rol, rol
+  |.ffunc_bit_sh bit_ror, ror
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->fff_fallback_2:
+  |  mov NARGS:RDd, 1+2			// Other args are ignored, anyway.
+  |  jmp ->fff_fallback
+  |->fff_fallback_1:
+  |  mov NARGS:RDd, 1+1			// Other args are ignored, anyway.
+  |->fff_fallback:			// Call fast function fallback handler.
+  |  // BASE = new base, RD = nargs+1
+  |  mov L:RB, SAVE_L
+  |  mov PC, [BASE-8]			// Fallback may overwrite PC.
+  |  mov SAVE_PC, PC			// Redundant (but a defined value).
+  |  mov L:RB->base, BASE
+  |  lea RD, [BASE+NARGS:RD*8-8]
+  |  lea RA, [RD+8*LUA_MINSTACK]	// Ensure enough space for handler.
+  |  mov L:RB->top, RD
+  |  mov CFUNC:RD, [BASE-16]
+  |  cleartp CFUNC:RD
+  |  cmp RA, L:RB->maxstack
+  |  ja >5				// Need to grow stack.
+  |  mov CARG1, L:RB
+  |  call aword CFUNC:RD->f		// (lua_State *L)
+  |  mov BASE, L:RB->base
+  |  // Either throws an error, or recovers and returns -1, 0 or nresults+1.
+  |  test RDd, RDd; jg ->fff_res	// Returned nresults+1?
+  |1:
+  |  mov RA, L:RB->top
+  |  sub RA, BASE
+  |  shr RAd, 3
+  |  test RDd, RDd
+  |  lea NARGS:RDd, [RAd+1]
+  |  mov LFUNC:RB, [BASE-16]
+  |  jne ->vm_call_tail			// Returned -1?
+  |  cleartp LFUNC:RB
+  |  ins_callt				// Returned 0: retry fast path.
+  |
+  |// Reconstruct previous base for vmeta_call during tailcall.
+  |->vm_call_tail:
+  |  mov RA, BASE
+  |  test PCd, FRAME_TYPE
+  |  jnz >3
+  |  movzx RBd, PC_RA
+  |  neg RB
+  |  lea BASE, [BASE+RB*8-16]		// base = base - (RB+2)*8
+  |  jmp ->vm_call_dispatch		// Resolve again for tailcall.
+  |3:
+  |  mov RB, PC
+  |  and RB, -8
+  |  sub BASE, RB
+  |  jmp ->vm_call_dispatch		// Resolve again for tailcall.
+  |
+  |5:  // Grow stack for fallback handler.
+  |  mov CARG2d, LUA_MINSTACK
+  |  mov CARG1, L:RB
+  |  call extern lj_state_growstack	// (lua_State *L, int n)
+  |  mov BASE, L:RB->base
+  |  xor RDd, RDd			// Simulate a return 0.
+  |  jmp <1				// Dumb retry (goes through ff first).
+  |
+  |->fff_gcstep:			// Call GC step function.
+  |  // BASE = new base, RD = nargs+1
+  |  pop RB				// Must keep stack at same level.
+  |  mov TMP1, RB			// Save return address
+  |  mov L:RB, SAVE_L
+  |  mov SAVE_PC, PC			// Redundant (but a defined value).
+  |  mov L:RB->base, BASE
+  |  lea RD, [BASE+NARGS:RD*8-8]
+  |  mov CARG1, L:RB
+  |  mov L:RB->top, RD
+  |  call extern lj_gc_step		// (lua_State *L)
+  |  mov BASE, L:RB->base
+  |  mov RD, L:RB->top
+  |  sub RD, BASE
+  |  shr RDd, 3
+  |  add NARGS:RDd, 1
+  |  mov RB, TMP1
+  |  push RB				// Restore return address.
+  |  ret
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Special dispatch targets -------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_record:				// Dispatch target for recording phase.
+  |.if JIT
+  |  movzx RDd, byte [DISPATCH+DISPATCH_GL(hookmask)]
+  |  test RDL, HOOK_VMEVENT		// No recording while in vmevent.
+  |  jnz >5
+  |  // Decrement the hookcount for consistency, but always do the call.
+  |  test RDL, HOOK_ACTIVE
+  |  jnz >1
+  |  test RDL, LUA_MASKLINE|LUA_MASKCOUNT
+  |  jz >1
+  |  dec dword [DISPATCH+DISPATCH_GL(hookcount)]
+  |  jmp >1
+  |.endif
+  |
+  |->vm_rethook:			// Dispatch target for return hooks.
+  |  movzx RDd, byte [DISPATCH+DISPATCH_GL(hookmask)]
+  |  test RDL, HOOK_ACTIVE		// Hook already active?
+  |  jnz >5
+  |  jmp >1
+  |
+  |->vm_inshook:			// Dispatch target for instr/line hooks.
+  |  movzx RDd, byte [DISPATCH+DISPATCH_GL(hookmask)]
+  |  test RDL, HOOK_ACTIVE		// Hook already active?
+  |  jnz >5
+  |
+  |  test RDL, LUA_MASKLINE|LUA_MASKCOUNT
+  |  jz >5
+  |  dec dword [DISPATCH+DISPATCH_GL(hookcount)]
+  |  jz >1
+  |  test RDL, LUA_MASKLINE
+  |  jz >5
+  |1:
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov CARG2, PC			// Caveat: CARG2 == BASE
+  |  mov CARG1, L:RB
+  |  // SAVE_PC must hold the _previous_ PC. The callee updates it with PC.
+  |  call extern lj_dispatch_ins	// (lua_State *L, const BCIns *pc)
+  |3:
+  |  mov BASE, L:RB->base
+  |4:
+  |  movzx RAd, PC_RA
+  |5:
+  |  movzx OP, PC_OP
+  |  movzx RDd, PC_RD
+  |  jmp aword [DISPATCH+OP*8+GG_DISP2STATIC]	// Re-dispatch to static ins.
+  |
+  |->cont_hook:				// Continue from hook yield.
+  |  add PC, 4
+  |  mov RA, [RB-40]
+  |  mov MULTRES, RAd			// Restore MULTRES for *M ins.
+  |  jmp <4
+  |
+  |->vm_hotloop:			// Hot loop counter underflow.
+  |.if JIT
+  |  mov LFUNC:RB, [BASE-16]		// Same as curr_topL(L).
+  |  cleartp LFUNC:RB
+  |  mov RB, LFUNC:RB->pc
+  |  movzx RDd, byte [RB+PC2PROTO(framesize)]
+  |  lea RD, [BASE+RD*8]
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov L:RB->top, RD
+  |  mov CARG2, PC
+  |  lea CARG1, [DISPATCH+GG_DISP2J]
+  |  mov aword [DISPATCH+DISPATCH_J(L)], L:RB
+  |  mov SAVE_PC, PC
+  |  call extern lj_trace_hot		// (jit_State *J, const BCIns *pc)
+  |  jmp <3
+  |.endif
+  |
+  |->vm_callhook:			// Dispatch target for call hooks.
+  |  mov SAVE_PC, PC
+  |.if JIT
+  |  jmp >1
+  |.endif
+  |
+  |->vm_hotcall:			// Hot call counter underflow.
+  |.if JIT
+  |  mov SAVE_PC, PC
+  |  or PC, 1				// Marker for hot call.
+  |1:
+  |.endif
+  |  lea RD, [BASE+NARGS:RD*8-8]
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov L:RB->top, RD
+  |  mov CARG2, PC
+  |  mov CARG1, L:RB
+  |  call extern lj_dispatch_call	// (lua_State *L, const BCIns *pc)
+  |  // ASMFunction returned in eax/rax (RD).
+  |  mov SAVE_PC, 0			// Invalidate for subsequent line hook.
+  |.if JIT
+  |  and PC, -2
+  |.endif
+  |  mov BASE, L:RB->base
+  |  mov RA, RD
+  |  mov RD, L:RB->top
+  |  sub RD, BASE
+  |  mov RB, RA
+  |  movzx RAd, PC_RA
+  |  shr RDd, 3
+  |  add NARGS:RDd, 1
+  |  jmp RB
+  |
+  |->cont_stitch:			// Trace stitching.
+  |.if JIT
+  |  // BASE = base, RC = result, RB = mbase
+  |  mov TRACE:ITYPE, [RB-40]		// Save previous trace.
+  |  cleartp TRACE:ITYPE
+  |  mov TMPRd, MULTRES
+  |  movzx RAd, PC_RA
+  |  lea RA, [BASE+RA*8]		// Call base.
+  |  sub TMPRd, 1
+  |  jz >2
+  |1:  // Move results down.
+  |  mov RB, [RC]
+  |  mov [RA], RB
+  |  add RC, 8
+  |  add RA, 8
+  |  sub TMPRd, 1
+  |  jnz <1
+  |2:
+  |  movzx RCd, PC_RA
+  |  movzx RBd, PC_RB
+  |  add RC, RB
+  |  lea RC, [BASE+RC*8-8]
+  |3:
+  |  cmp RC, RA
+  |  ja >9				// More results wanted?
+  |
+  |  test TRACE:ITYPE, TRACE:ITYPE
+  |  jz ->cont_nop
+  |  movzx RBd, word TRACE:ITYPE->traceno
+  |  movzx RDd, word TRACE:ITYPE->link
+  |  cmp RDd, RBd
+  |  je ->cont_nop			// Blacklisted.
+  |  test RDd, RDd
+  |  jne =>BC_JLOOP			// Jump to stitched trace.
+  |
+  |  // Stitch a new trace to the previous trace.
+  |  mov [DISPATCH+DISPATCH_J(exitno)], RB
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov CARG2, PC
+  |  lea CARG1, [DISPATCH+GG_DISP2J]
+  |  mov aword [DISPATCH+DISPATCH_J(L)], L:RB
+  |  call extern lj_dispatch_stitch	// (jit_State *J, const BCIns *pc)
+  |  mov BASE, L:RB->base
+  |  jmp ->cont_nop
+  |
+  |9:  // Fill up results with nil.
+  |  mov aword [RA], LJ_TNIL
+  |  add RA, 8
+  |  jmp <3
+  |.endif
+  |
+  |->vm_profhook:			// Dispatch target for profiler hook.
+#if LJ_HASPROFILE
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov CARG2, PC			// Caveat: CARG2 == BASE
+  |  mov CARG1, L:RB
+  |  call extern lj_dispatch_profile	// (lua_State *L, const BCIns *pc)
+  |  mov BASE, L:RB->base
+  |  // HOOK_PROFILE is off again, so re-dispatch to dynamic instruction.
+  |  sub PC, 4
+  |  jmp ->cont_nop
+#endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Trace exit handler -------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Called from an exit stub with the exit number on the stack.
+  |// The 16 bit exit number is stored with two (sign-extended) push imm8.
+  |->vm_exit_handler:
+  |.if JIT
+  |  push r13; push r12
+  |  push r11; push r10; push r9; push r8
+  |  push rdi; push rsi; push rbp; lea rbp, [rsp+88]; push rbp
+  |  push rbx; push rdx; push rcx; push rax
+  |  movzx RCd, byte [rbp-8]		// Reconstruct exit number.
+  |  mov RCH, byte [rbp-16]
+  |  mov [rbp-8], r15; mov [rbp-16], r14
+  |  // DISPATCH is preserved on-trace in LJ_GC64 mode.
+  |  mov RAd, [DISPATCH+DISPATCH_GL(vmstate)]	// Get trace number.
+  |  set_vmstate EXIT
+  |  mov [DISPATCH+DISPATCH_J(exitno)], RCd
+  |  mov [DISPATCH+DISPATCH_J(parent)], RAd
+  |.if X64WIN
+  |  sub rsp, 16*8+4*8			// Room for SSE regs + save area.
+  |.else
+  |  sub rsp, 16*8			// Room for SSE regs.
+  |.endif
+  |  add rbp, -128
+  |  movsd qword [rbp-8],   xmm15; movsd qword [rbp-16],  xmm14
+  |  movsd qword [rbp-24],  xmm13; movsd qword [rbp-32],  xmm12
+  |  movsd qword [rbp-40],  xmm11; movsd qword [rbp-48],  xmm10
+  |  movsd qword [rbp-56],  xmm9;  movsd qword [rbp-64],  xmm8
+  |  movsd qword [rbp-72],  xmm7;  movsd qword [rbp-80],  xmm6
+  |  movsd qword [rbp-88],  xmm5;  movsd qword [rbp-96],  xmm4
+  |  movsd qword [rbp-104], xmm3;  movsd qword [rbp-112], xmm2
+  |  movsd qword [rbp-120], xmm1;  movsd qword [rbp-128], xmm0
+  |  // Caveat: RB is rbp.
+  |  mov L:RB, [DISPATCH+DISPATCH_GL(cur_L)]
+  |  mov BASE, [DISPATCH+DISPATCH_GL(jit_base)]
+  |  mov aword [DISPATCH+DISPATCH_J(L)], L:RB
+  |  mov L:RB->base, BASE
+  |.if X64WIN
+  |  lea CARG2, [rsp+4*8]
+  |.else
+  |  mov CARG2, rsp
+  |.endif
+  |  lea CARG1, [DISPATCH+GG_DISP2J]
+  |  mov qword [DISPATCH+DISPATCH_GL(jit_base)], 0
+  |  call extern lj_trace_exit		// (jit_State *J, ExitState *ex)
+  |  // MULTRES or negated error code returned in eax (RD).
+  |  mov RA, L:RB->cframe
+  |  and RA, CFRAME_RAWMASK
+  |  mov [RA+CFRAME_OFS_L], L:RB	// Set SAVE_L (on-trace resume/yield).
+  |  mov BASE, L:RB->base
+  |  mov PC, [RA+CFRAME_OFS_PC]	// Get SAVE_PC.
+  |  jmp >1
+  |.endif
+  |->vm_exit_interp:
+  |  // RD = MULTRES or negated error code, BASE, PC and DISPATCH set.
+  |.if JIT
+  |  // Restore additional callee-save registers only used in compiled code.
+  |.if X64WIN
+  |  lea RA, [rsp+10*16+4*8]
+  |1:
+  |  movdqa xmm15, [RA-10*16]
+  |  movdqa xmm14, [RA-9*16]
+  |  movdqa xmm13, [RA-8*16]
+  |  movdqa xmm12, [RA-7*16]
+  |  movdqa xmm11, [RA-6*16]
+  |  movdqa xmm10, [RA-5*16]
+  |  movdqa xmm9, [RA-4*16]
+  |  movdqa xmm8, [RA-3*16]
+  |  movdqa xmm7, [RA-2*16]
+  |  mov rsp, RA			// Reposition stack to C frame.
+  |  movdqa xmm6, [RA-1*16]
+  |  mov r15, CSAVE_1
+  |  mov r14, CSAVE_2
+  |  mov r13, CSAVE_3
+  |  mov r12, CSAVE_4
+  |.else
+  |  lea RA, [rsp+16]
+  |1:
+  |  mov r13, [RA-8]
+  |  mov r12, [RA]
+  |  mov rsp, RA			// Reposition stack to C frame.
+  |.endif
+  |  test RDd, RDd; js >9		// Check for error from exit.
+  |  mov L:RB, SAVE_L
+  |  mov MULTRES, RDd
+  |  mov LFUNC:KBASE, [BASE-16]
+  |  cleartp LFUNC:KBASE
+  |  mov KBASE, LFUNC:KBASE->pc
+  |  mov KBASE, [KBASE+PC2PROTO(k)]
+  |  mov L:RB->base, BASE
+  |  mov qword [DISPATCH+DISPATCH_GL(jit_base)], 0
+  |  set_vmstate INTERP
+  |  // Modified copy of ins_next which handles function header dispatch, too.
+  |  mov RCd, [PC]
+  |  movzx RAd, RCH
+  |  movzx OP, RCL
+  |  add PC, 4
+  |  shr RCd, 16
+  |  cmp OP, BC_FUNCF			// Function header?
+  |  jb >3
+  |  cmp OP, BC_FUNCC+2			// Fast function?
+  |  jae >4
+  |2:
+  |  mov RCd, MULTRES			// RC/RD holds nres+1.
+  |3:
+  |  jmp aword [DISPATCH+OP*8]
+  |
+  |4:  // Check frame below fast function.
+  |  mov RC, [BASE-8]
+  |  test RCd, FRAME_TYPE
+  |  jnz <2				// Trace stitching continuation?
+  |  // Otherwise set KBASE for Lua function below fast function.
+  |  movzx RCd, byte [RC-3]
+  |  neg RC
+  |  mov LFUNC:KBASE, [BASE+RC*8-32]
+  |  cleartp LFUNC:KBASE
+  |  mov KBASE, LFUNC:KBASE->pc
+  |  mov KBASE, [KBASE+PC2PROTO(k)]
+  |  jmp <2
+  |
+  |9:  // Rethrow error from the right C frame.
+  |  mov CARG2d, RDd
+  |  mov CARG1, L:RB
+  |  neg CARG2d
+  |  call extern lj_err_trace		// (lua_State *L, int errcode)
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Math helper functions ----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// FP value rounding. Called by math.floor/math.ceil fast functions
+  |// and from JIT code. arg/ret is xmm0. xmm0-xmm3 and RD (eax) modified.
+  |.macro vm_round, name, mode, cond
+  |->name:
+  |->name .. _sse:
+  |  sseconst_abs xmm2, RD
+  |  sseconst_2p52 xmm3, RD
+  |  movaps xmm1, xmm0
+  |  andpd xmm1, xmm2			// |x|
+  |  ucomisd xmm3, xmm1			// No truncation if 2^52 <= |x|.
+  |  jbe >1
+  |  andnpd xmm2, xmm0			// Isolate sign bit.
+  |.if mode == 2		// trunc(x)?
+  |  movaps xmm0, xmm1
+  |  addsd xmm1, xmm3			// (|x| + 2^52) - 2^52
+  |  subsd xmm1, xmm3
+  |  sseconst_1 xmm3, RD
+  |  cmpsd xmm0, xmm1, 1		// |x| < result?
+  |  andpd xmm0, xmm3
+  |  subsd xmm1, xmm0			// If yes, subtract -1.
+  |  orpd xmm1, xmm2			// Merge sign bit back in.
+  |.else
+  |  addsd xmm1, xmm3			// (|x| + 2^52) - 2^52
+  |  subsd xmm1, xmm3
+  |  orpd xmm1, xmm2			// Merge sign bit back in.
+  |  sseconst_1 xmm3, RD
+  |  .if mode == 1		// ceil(x)?
+  |    cmpsd xmm0, xmm1, 6		// x > result?
+  |    andpd xmm0, xmm3
+  |    addsd xmm1, xmm0			// If yes, add 1.
+  |    orpd xmm1, xmm2			// Merge sign bit back in (again).
+  |  .else			// floor(x)?
+  |    cmpsd xmm0, xmm1, 1		// x < result?
+  |    andpd xmm0, xmm3
+  |    subsd xmm1, xmm0			// If yes, subtract 1.
+  |  .endif
+  |.endif
+  |  movaps xmm0, xmm1
+  |1:
+  |  ret
+  |.endmacro
+  |
+  |  vm_round vm_floor, 0, 1
+  |  vm_round vm_ceil,  1, JIT
+  |  vm_round vm_trunc, 2, JIT
+  |
+  |// FP modulo x%y. Called by BC_MOD* and vm_arith.
+  |->vm_mod:
+  |// Args in xmm0/xmm1, return value in xmm0.
+  |// Caveat: xmm0-xmm5 and RC (eax) modified!
+  |  movaps xmm5, xmm0
+  |  divsd xmm0, xmm1
+  |  sseconst_abs xmm2, RD
+  |  sseconst_2p52 xmm3, RD
+  |  movaps xmm4, xmm0
+  |  andpd xmm4, xmm2			// |x/y|
+  |  ucomisd xmm3, xmm4			// No truncation if 2^52 <= |x/y|.
+  |  jbe >1
+  |  andnpd xmm2, xmm0			// Isolate sign bit.
+  |  addsd xmm4, xmm3			// (|x/y| + 2^52) - 2^52
+  |  subsd xmm4, xmm3
+  |  orpd xmm4, xmm2			// Merge sign bit back in.
+  |  sseconst_1 xmm2, RD
+  |  cmpsd xmm0, xmm4, 1		// x/y < result?
+  |  andpd xmm0, xmm2
+  |  subsd xmm4, xmm0			// If yes, subtract 1.0.
+  |  movaps xmm0, xmm5
+  |  mulsd xmm1, xmm4
+  |  subsd xmm0, xmm1
+  |  ret
+  |1:
+  |  mulsd xmm1, xmm0
+  |  movaps xmm0, xmm5
+  |  subsd xmm0, xmm1
+  |  ret
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Miscellaneous functions --------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// int lj_vm_cpuid(uint32_t f, uint32_t res[4])
+  |->vm_cpuid:
+  |  mov eax, CARG1d
+  |  .if X64WIN; push rsi; mov rsi, CARG2; .endif
+  |  push rbx
+  |  xor ecx, ecx
+  |  cpuid
+  |  mov [rsi], eax
+  |  mov [rsi+4], ebx
+  |  mov [rsi+8], ecx
+  |  mov [rsi+12], edx
+  |  pop rbx
+  |  .if X64WIN; pop rsi; .endif
+  |  ret
+  |
+  |.define NEXT_TAB,		TAB:CARG1
+  |.define NEXT_IDX,		CARG2d
+  |.define NEXT_IDXa,		CARG2
+  |.define NEXT_PTR,		RC
+  |.define NEXT_PTRd,		RCd
+  |.define NEXT_TMP,		CARG3
+  |.define NEXT_ASIZE,		CARG4d
+  |.macro NEXT_RES_IDXL, op2;	lea edx, [NEXT_IDX+op2]; .endmacro
+  |.if X64WIN
+  |.define NEXT_RES_PTR,	[rsp+aword*5]
+  |.macro NEXT_RES_IDX, op2;	add NEXT_IDX, op2; .endmacro
+  |.else
+  |.define NEXT_RES_PTR,	[rsp+aword*1]
+  |.macro NEXT_RES_IDX, op2;	lea edx, [NEXT_IDX+op2]; .endmacro
+  |.endif
+  |
+  |// TValue *lj_vm_next(GCtab *t, uint32_t idx)
+  |// Next idx returned in edx.
+  |->vm_next:
+  |.if JIT
+  |  mov NEXT_ASIZE, NEXT_TAB->asize
+  |1:  // Traverse array part.
+  |  cmp NEXT_IDX, NEXT_ASIZE;  jae >5
+  |  mov NEXT_TMP, NEXT_TAB->array
+  |  mov NEXT_TMP, qword [NEXT_TMP+NEXT_IDX*8]
+  |  cmp NEXT_TMP, LJ_TNIL;  je >2
+  |  lea NEXT_PTR, NEXT_RES_PTR
+  |  mov qword [NEXT_PTR], NEXT_TMP
+  |.if DUALNUM
+  |  setint NEXT_TMP, NEXT_IDXa
+  |  mov qword [NEXT_PTR+qword*1], NEXT_TMP
+  |.else
+  |  cvtsi2sd xmm0, NEXT_IDX
+  |  movsd qword [NEXT_PTR+qword*1], xmm0
+  |.endif
+  |  NEXT_RES_IDX 1
+  |  ret
+  |2:  // Skip holes in array part.
+  |  add NEXT_IDX, 1
+  |  jmp <1
+  |
+  |5:  // Traverse hash part.
+  |  sub NEXT_IDX, NEXT_ASIZE
+  |6:
+  |  cmp NEXT_IDX, NEXT_TAB->hmask; ja >9
+  |  imul NEXT_PTRd, NEXT_IDX, #NODE
+  |  add NODE:NEXT_PTR, NEXT_TAB->node
+  |  cmp qword NODE:NEXT_PTR->val, LJ_TNIL; je >7
+  |  NEXT_RES_IDXL NEXT_ASIZE+1
+  |  ret
+  |7:  // Skip holes in hash part.
+  |  add NEXT_IDX, 1
+  |  jmp <6
+  |
+  |9:  // End of iteration. Set the key to nil (not the value).
+  |  NEXT_RES_IDX NEXT_ASIZE
+  |  lea NEXT_PTR, NEXT_RES_PTR
+  |  mov qword [NEXT_PTR+qword*1], LJ_TNIL
+  |  ret
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Assertions ---------------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->assert_bad_for_arg_type:
+#ifdef LUA_USE_ASSERT
+  |  int3
+#endif
+  |  int3
+  |
+  |//-----------------------------------------------------------------------
+  |//-- FFI helper functions -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Handler for callback functions. Callback slot number in ah/al.
+  |->vm_ffi_callback:
+  |.if FFI
+  |.type CTSTATE, CTState, PC
+  |  saveregs_	// ebp/rbp already saved. ebp now holds global_State *.
+  |  lea DISPATCH, [ebp+GG_G2DISP]
+  |  mov CTSTATE, GL:ebp->ctype_state
+  |  movzx eax, ax
+  |  mov CTSTATE->cb.slot, eax
+  |  mov CTSTATE->cb.gpr[0], CARG1
+  |  mov CTSTATE->cb.gpr[1], CARG2
+  |  mov CTSTATE->cb.gpr[2], CARG3
+  |  mov CTSTATE->cb.gpr[3], CARG4
+  |  movsd qword CTSTATE->cb.fpr[0], xmm0
+  |  movsd qword CTSTATE->cb.fpr[1], xmm1
+  |  movsd qword CTSTATE->cb.fpr[2], xmm2
+  |  movsd qword CTSTATE->cb.fpr[3], xmm3
+  |.if X64WIN
+  |  lea rax, [rsp+CFRAME_SIZE+4*8]
+  |.else
+  |  lea rax, [rsp+CFRAME_SIZE]
+  |  mov CTSTATE->cb.gpr[4], CARG5
+  |  mov CTSTATE->cb.gpr[5], CARG6
+  |  movsd qword CTSTATE->cb.fpr[4], xmm4
+  |  movsd qword CTSTATE->cb.fpr[5], xmm5
+  |  movsd qword CTSTATE->cb.fpr[6], xmm6
+  |  movsd qword CTSTATE->cb.fpr[7], xmm7
+  |.endif
+  |  mov CTSTATE->cb.stack, rax
+  |  mov CARG2, rsp
+  |  mov SAVE_PC, CTSTATE		// Any value outside of bytecode is ok.
+  |  mov CARG1, CTSTATE
+  |  call extern lj_ccallback_enter	// (CTState *cts, void *cf)
+  |  // lua_State * returned in eax (RD).
+  |  set_vmstate INTERP
+  |  mov BASE, L:RD->base
+  |  mov RD, L:RD->top
+  |  sub RD, BASE
+  |  mov LFUNC:RB, [BASE-16]
+  |  cleartp LFUNC:RB
+  |  shr RD, 3
+  |  add RD, 1
+  |  ins_callt
+  |.endif
+  |
+  |->cont_ffi_callback:			// Return from FFI callback.
+  |.if FFI
+  |  mov L:RA, SAVE_L
+  |  mov CTSTATE, [DISPATCH+DISPATCH_GL(ctype_state)]
+  |  mov aword CTSTATE->L, L:RA
+  |  mov L:RA->base, BASE
+  |  mov L:RA->top, RB
+  |  mov CARG1, CTSTATE
+  |  mov CARG2, RC
+  |  call extern lj_ccallback_leave	// (CTState *cts, TValue *o)
+  |  mov rax, CTSTATE->cb.gpr[0]
+  |  movsd xmm0, qword CTSTATE->cb.fpr[0]
+  |  jmp ->vm_leave_unw
+  |.endif
+  |
+  |->vm_ffi_call:			// Call C function via FFI.
+  |  // Caveat: needs special frame unwinding, see below.
+  |.if FFI
+  |  .type CCSTATE, CCallState, rbx
+  |  push rbp; mov rbp, rsp; push rbx; mov CCSTATE, CARG1
+  |
+  |  // Readjust stack.
+  |  mov eax, CCSTATE->spadj
+  |  sub rsp, rax
+  |
+  |  // Copy stack slots.
+  |  movzx ecx, byte CCSTATE->nsp
+  |  sub ecx, 1
+  |  js >2
+  |1:
+  |  mov rax, [CCSTATE+rcx*8+offsetof(CCallState, stack)]
+  |  mov [rsp+rcx*8+CCALL_SPS_EXTRA*8], rax
+  |  sub ecx, 1
+  |  jns <1
+  |2:
+  |
+  |  movzx eax, byte CCSTATE->nfpr
+  |  mov CARG1, CCSTATE->gpr[0]
+  |  mov CARG2, CCSTATE->gpr[1]
+  |  mov CARG3, CCSTATE->gpr[2]
+  |  mov CARG4, CCSTATE->gpr[3]
+  |.if not X64WIN
+  |  mov CARG5, CCSTATE->gpr[4]
+  |  mov CARG6, CCSTATE->gpr[5]
+  |.endif
+  |  test eax, eax; jz >5
+  |  movaps xmm0, CCSTATE->fpr[0]
+  |  movaps xmm1, CCSTATE->fpr[1]
+  |  movaps xmm2, CCSTATE->fpr[2]
+  |  movaps xmm3, CCSTATE->fpr[3]
+  |.if not X64WIN
+  |  cmp eax, 4; jbe >5
+  |  movaps xmm4, CCSTATE->fpr[4]
+  |  movaps xmm5, CCSTATE->fpr[5]
+  |  movaps xmm6, CCSTATE->fpr[6]
+  |  movaps xmm7, CCSTATE->fpr[7]
+  |.endif
+  |5:
+  |
+  |  call aword CCSTATE->func
+  |
+  |  mov CCSTATE->gpr[0], rax
+  |  movaps CCSTATE->fpr[0], xmm0
+  |.if not X64WIN
+  |  mov CCSTATE->gpr[1], rdx
+  |  movaps CCSTATE->fpr[1], xmm1
+  |.endif
+  |
+  |  mov rbx, [rbp-8]; leave; ret
+  |.endif
+  |// Note: vm_ffi_call must be the last function in this object file!
+  |
+  |//-----------------------------------------------------------------------
+}
+
+/* Generate the code for a single instruction. */
+static void build_ins(BuildCtx *ctx, BCOp op, int defop)
+{
+  int vk = 0;
+  |// Note: aligning all instructions does not pay off.
+  |=>defop:
+
+  switch (op) {
+
+  /* -- Comparison ops ---------------------------------------------------- */
+
+  /* Remember: all ops branch for a true comparison, fall through otherwise. */
+
+  |.macro jmp_comp, lt, ge, le, gt, target
+  ||switch (op) {
+  ||case BC_ISLT:
+  |   lt target
+  ||break;
+  ||case BC_ISGE:
+  |   ge target
+  ||break;
+  ||case BC_ISLE:
+  |   le target
+  ||break;
+  ||case BC_ISGT:
+  |   gt target
+  ||break;
+  ||default: break;  /* Shut up GCC. */
+  ||}
+  |.endmacro
+
+  case BC_ISLT: case BC_ISGE: case BC_ISLE: case BC_ISGT:
+    |  // RA = src1, RD = src2, JMP with RD = target
+    |  ins_AD
+    |  mov ITYPE, [BASE+RA*8]
+    |  mov RB, [BASE+RD*8]
+    |  mov RA, ITYPE
+    |  mov RD, RB
+    |  sar ITYPE, 47
+    |  sar RB, 47
+    |.if DUALNUM
+    |  cmp ITYPEd, LJ_TISNUM; jne >7
+    |  cmp RBd, LJ_TISNUM; jne >8
+    |  add PC, 4
+    |  cmp RAd, RDd
+    |  jmp_comp jge, jl, jg, jle, >9
+    |6:
+    |  movzx RDd, PC_RD
+    |  branchPC RD
+    |9:
+    |  ins_next
+    |
+    |7:  // RA is not an integer.
+    |  ja ->vmeta_comp
+    |  // RA is a number.
+    |  cmp RBd, LJ_TISNUM; jb >1; jne ->vmeta_comp
+    |  // RA is a number, RD is an integer.
+    |  cvtsi2sd xmm0, RDd
+    |  jmp >2
+    |
+    |8:  // RA is an integer, RD is not an integer.
+    |  ja ->vmeta_comp
+    |  // RA is an integer, RD is a number.
+    |  cvtsi2sd xmm1, RAd
+    |  movd xmm0, RD
+    |  jmp >3
+    |.else
+    |  cmp ITYPEd, LJ_TISNUM; jae ->vmeta_comp
+    |  cmp RBd, LJ_TISNUM; jae ->vmeta_comp
+    |.endif
+    |1:
+    |  movd xmm0, RD
+    |2:
+    |  movd xmm1, RA
+    |3:
+    |  add PC, 4
+    |  ucomisd xmm0, xmm1
+    |  // Unordered: all of ZF CF PF set, ordered: PF clear.
+    |  // To preserve NaN semantics GE/GT branch on unordered, but LT/LE don't.
+    |.if DUALNUM
+    |  jmp_comp jbe, ja, jb, jae, <9
+    |  jmp <6
+    |.else
+    |  jmp_comp jbe, ja, jb, jae, >1
+    |  movzx RDd, PC_RD
+    |  branchPC RD
+    |1:
+    |  ins_next
+    |.endif
+    break;
+
+  case BC_ISEQV: case BC_ISNEV:
+    vk = op == BC_ISEQV;
+    |  ins_AD	// RA = src1, RD = src2, JMP with RD = target
+    |  mov RB, [BASE+RD*8]
+    |  mov ITYPE, [BASE+RA*8]
+    |  add PC, 4
+    |  mov RD, RB
+    |  mov RA, ITYPE
+    |  sar RB, 47
+    |  sar ITYPE, 47
+    |.if DUALNUM
+    |  cmp RBd, LJ_TISNUM; jne >7
+    |  cmp ITYPEd, LJ_TISNUM; jne >8
+    |  cmp RDd, RAd
+    if (vk) {
+      |  jne >9
+    } else {
+      |  je >9
+    }
+    |  movzx RDd, PC_RD
+    |  branchPC RD
+    |9:
+    |  ins_next
+    |
+    |7:  // RD is not an integer.
+    |  ja >5
+    |  // RD is a number.
+    |  movd xmm1, RD
+    |  cmp ITYPEd, LJ_TISNUM; jb >1; jne >5
+    |  // RD is a number, RA is an integer.
+    |  cvtsi2sd xmm0, RAd
+    |  jmp >2
+    |
+    |8:  // RD is an integer, RA is not an integer.
+    |  ja >5
+    |  // RD is an integer, RA is a number.
+    |  cvtsi2sd xmm1, RDd
+    |  jmp >1
+    |
+    |.else
+    |  cmp RBd, LJ_TISNUM; jae >5
+    |  cmp ITYPEd, LJ_TISNUM; jae >5
+    |  movd xmm1, RD
+    |.endif
+    |1:
+    |  movd xmm0, RA
+    |2:
+    |  ucomisd xmm0, xmm1
+    |4:
+  iseqne_fp:
+    if (vk) {
+      |  jp >2				// Unordered means not equal.
+      |  jne >2
+    } else {
+      |  jp >2				// Unordered means not equal.
+      |  je >1
+    }
+  iseqne_end:
+    if (vk) {
+      |1:				// EQ: Branch to the target.
+      |  movzx RDd, PC_RD
+      |  branchPC RD
+      |2:				// NE: Fallthrough to next instruction.
+      |.if not FFI
+      |3:
+      |.endif
+    } else {
+      |.if not FFI
+      |3:
+      |.endif
+      |2:				// NE: Branch to the target.
+      |  movzx RDd, PC_RD
+      |  branchPC RD
+      |1:				// EQ: Fallthrough to next instruction.
+    }
+    if (LJ_DUALNUM && (op == BC_ISEQV || op == BC_ISNEV ||
+		       op == BC_ISEQN || op == BC_ISNEN)) {
+      |  jmp <9
+    } else {
+      |  ins_next
+    }
+    |
+    if (op == BC_ISEQV || op == BC_ISNEV) {
+      |5:  // Either or both types are not numbers.
+      |.if FFI
+      |  cmp RBd, LJ_TCDATA; je ->vmeta_equal_cd
+      |  cmp ITYPEd, LJ_TCDATA; je ->vmeta_equal_cd
+      |.endif
+      |  cmp RA, RD
+      |  je <1				// Same GCobjs or pvalues?
+      |  cmp RBd, ITYPEd
+      |  jne <2				// Not the same type?
+      |  cmp RBd, LJ_TISTABUD
+      |  ja <2				// Different objects and not table/ud?
+      |
+      |  // Different tables or userdatas. Need to check __eq metamethod.
+      |  // Field metatable must be at same offset for GCtab and GCudata!
+      |  cleartp TAB:RA
+      |  mov TAB:RB, TAB:RA->metatable
+      |  test TAB:RB, TAB:RB
+      |  jz <2				// No metatable?
+      |  test byte TAB:RB->nomm, 1<<MM_eq
+      |  jnz <2				// Or 'no __eq' flag set?
+      if (vk) {
+	|  xor RBd, RBd			// ne = 0
+      } else {
+	|  mov RBd, 1			// ne = 1
+      }
+      |  jmp ->vmeta_equal		// Handle __eq metamethod.
+    } else {
+      |.if FFI
+      |3:
+      |  cmp ITYPEd, LJ_TCDATA
+      if (LJ_DUALNUM && vk) {
+	|  jne <9
+      } else {
+	|  jne <2
+      }
+      |  jmp ->vmeta_equal_cd
+      |.endif
+    }
+    break;
+  case BC_ISEQS: case BC_ISNES:
+    vk = op == BC_ISEQS;
+    |  ins_AND	// RA = src, RD = str const, JMP with RD = target
+    |  mov RB, [BASE+RA*8]
+    |  add PC, 4
+    |  checkstr RB, >3
+    |  cmp RB, [KBASE+RD*8]
+  iseqne_test:
+    if (vk) {
+      |  jne >2
+    } else {
+      |  je >1
+    }
+    goto iseqne_end;
+  case BC_ISEQN: case BC_ISNEN:
+    vk = op == BC_ISEQN;
+    |  ins_AD	// RA = src, RD = num const, JMP with RD = target
+    |  mov RB, [BASE+RA*8]
+    |  add PC, 4
+    |.if DUALNUM
+    |  checkint RB, >7
+    |  mov RD, [KBASE+RD*8]
+    |  checkint RD, >8
+    |  cmp RBd, RDd
+    if (vk) {
+      |  jne >9
+    } else {
+      |  je >9
+    }
+    |  movzx RDd, PC_RD
+    |  branchPC RD
+    |9:
+    |  ins_next
+    |
+    |7:  // RA is not an integer.
+    |  ja >3
+    |  // RA is a number.
+    |  mov RD, [KBASE+RD*8]
+    |  checkint RD, >1
+    |  // RA is a number, RD is an integer.
+    |  cvtsi2sd xmm0, RDd
+    |  jmp >2
+    |
+    |8:  // RA is an integer, RD is a number.
+    |  cvtsi2sd xmm0, RBd
+    |  movd xmm1, RD
+    |  ucomisd xmm0, xmm1
+    |  jmp >4
+    |1:
+    |  movd xmm0, RD
+    |.else
+    |  checknum RB, >3
+    |1:
+    |  movsd xmm0, qword [KBASE+RD*8]
+    |.endif
+    |2:
+    |  ucomisd xmm0, qword [BASE+RA*8]
+    |4:
+    goto iseqne_fp;
+  case BC_ISEQP: case BC_ISNEP:
+    vk = op == BC_ISEQP;
+    |  ins_AND	// RA = src, RD = primitive type (~), JMP with RD = target
+    |  mov RB, [BASE+RA*8]
+    |  sar RB, 47
+    |  add PC, 4
+    |  cmp RBd, RDd
+    if (!LJ_HASFFI) goto iseqne_test;
+    if (vk) {
+      |  jne >3
+      |  movzx RDd, PC_RD
+      |  branchPC RD
+      |2:
+      |  ins_next
+      |3:
+      |  cmp RBd, LJ_TCDATA; jne <2
+      |  jmp ->vmeta_equal_cd
+    } else {
+      |  je >2
+      |  cmp RBd, LJ_TCDATA; je ->vmeta_equal_cd
+      |  movzx RDd, PC_RD
+      |  branchPC RD
+      |2:
+      |  ins_next
+    }
+    break;
+
+  /* -- Unary test and copy ops ------------------------------------------- */
+
+  case BC_ISTC: case BC_ISFC: case BC_IST: case BC_ISF:
+    |  ins_AD	// RA = dst or unused, RD = src, JMP with RD = target
+    |  mov ITYPE, [BASE+RD*8]
+    |  add PC, 4
+    if (op == BC_ISTC || op == BC_ISFC) {
+      |  mov RB, ITYPE
+    }
+    |  sar ITYPE, 47
+    |  cmp ITYPEd, LJ_TISTRUECOND
+    if (op == BC_IST || op == BC_ISTC) {
+      |  jae >1
+    } else {
+      |  jb >1
+    }
+    if (op == BC_ISTC || op == BC_ISFC) {
+      |  mov [BASE+RA*8], RB
+    }
+    |  movzx RDd, PC_RD
+    |  branchPC RD
+    |1:					// Fallthrough to the next instruction.
+    |  ins_next
+    break;
+
+  case BC_ISTYPE:
+    |  ins_AD	// RA = src, RD = -type
+    |  mov RB, [BASE+RA*8]
+    |  sar RB, 47
+    |  add RBd, RDd
+    |  jne ->vmeta_istype
+    |  ins_next
+    break;
+  case BC_ISNUM:
+    |  ins_AD	// RA = src, RD = -(TISNUM-1)
+    |  checknumtp [BASE+RA*8], ->vmeta_istype
+    |  ins_next
+    break;
+
+  /* -- Unary ops --------------------------------------------------------- */
+
+  case BC_MOV:
+    |  ins_AD	// RA = dst, RD = src
+    |  mov RB, [BASE+RD*8]
+    |  mov [BASE+RA*8], RB
+    |  ins_next_
+    break;
+  case BC_NOT:
+    |  ins_AD	// RA = dst, RD = src
+    |  mov RB, [BASE+RD*8]
+    |  sar RB, 47
+    |  mov RCd, 2
+    |  cmp RB, LJ_TISTRUECOND
+    |  sbb RCd, 0
+    |  shl RC, 47
+    |  not RC
+    |  mov [BASE+RA*8], RC
+    |  ins_next
+    break;
+  case BC_UNM:
+    |  ins_AD	// RA = dst, RD = src
+    |  mov RB, [BASE+RD*8]
+    |.if DUALNUM
+    |  checkint RB, >5
+    |  neg RBd
+    |  jo >4
+    |  setint RB
+    |9:
+    |  mov [BASE+RA*8], RB
+    |  ins_next
+    |4:
+    |  mov64 RB, U64x(41e00000,00000000)  // 2^31.
+    |  jmp <9
+    |5:
+    |  ja ->vmeta_unm
+    |.else
+    |  checknum RB, ->vmeta_unm
+    |.endif
+    |  mov64 RD, U64x(80000000,00000000)
+    |  xor RB, RD
+    |.if DUALNUM
+    |  jmp <9
+    |.else
+    |  mov [BASE+RA*8], RB
+    |  ins_next
+    |.endif
+    break;
+  case BC_LEN:
+    |  ins_AD	// RA = dst, RD = src
+    |  mov RD, [BASE+RD*8]
+    |  checkstr RD, >2
+    |.if DUALNUM
+    |  mov RDd, dword STR:RD->len
+    |1:
+    |  setint RD
+    |  mov [BASE+RA*8], RD
+    |.else
+    |  xorps xmm0, xmm0
+    |  cvtsi2sd xmm0, dword STR:RD->len
+    |1:
+    |  movsd qword [BASE+RA*8], xmm0
+    |.endif
+    |  ins_next
+    |2:
+    |  cmp ITYPEd, LJ_TTAB; jne ->vmeta_len
+    |  mov TAB:CARG1, TAB:RD
+#if LJ_52
+    |  mov TAB:RB, TAB:RD->metatable
+    |  cmp TAB:RB, 0
+    |  jnz >9
+    |3:
+#endif
+    |->BC_LEN_Z:
+    |  mov RB, BASE			// Save BASE.
+    |  call extern lj_tab_len		// (GCtab *t)
+    |  // Length of table returned in eax (RD).
+    |.if DUALNUM
+    |  // Nothing to do.
+    |.else
+    |  cvtsi2sd xmm0, RDd
+    |.endif
+    |  mov BASE, RB			// Restore BASE.
+    |  movzx RAd, PC_RA
+    |  jmp <1
+#if LJ_52
+    |9:  // Check for __len.
+    |  test byte TAB:RB->nomm, 1<<MM_len
+    |  jnz <3
+    |  jmp ->vmeta_len			// 'no __len' flag NOT set: check.
+#endif
+    break;
+
+  /* -- Binary ops -------------------------------------------------------- */
+
+    |.macro ins_arithpre, sseins, ssereg
+    |  ins_ABC
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    ||switch (vk) {
+    ||case 0:
+    |   checknumtp [BASE+RB*8], ->vmeta_arith_vn
+    |   .if DUALNUM
+    |     checknumtp [KBASE+RC*8], ->vmeta_arith_vn
+    |   .endif
+    |   movsd xmm0, qword [BASE+RB*8]
+    |   sseins ssereg, qword [KBASE+RC*8]
+    ||  break;
+    ||case 1:
+    |   checknumtp [BASE+RB*8], ->vmeta_arith_nv
+    |   .if DUALNUM
+    |     checknumtp [KBASE+RC*8], ->vmeta_arith_nv
+    |   .endif
+    |   movsd xmm0, qword [KBASE+RC*8]
+    |   sseins ssereg, qword [BASE+RB*8]
+    ||  break;
+    ||default:
+    |   checknumtp [BASE+RB*8], ->vmeta_arith_vv
+    |   checknumtp [BASE+RC*8], ->vmeta_arith_vv
+    |   movsd xmm0, qword [BASE+RB*8]
+    |   sseins ssereg, qword [BASE+RC*8]
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro ins_arithdn, intins
+    |  ins_ABC
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    ||switch (vk) {
+    ||case 0:
+    |   mov RB, [BASE+RB*8]
+    |   mov RC, [KBASE+RC*8]
+    |   checkint RB, ->vmeta_arith_vno
+    |   checkint RC, ->vmeta_arith_vno
+    |   intins RBd, RCd; jo ->vmeta_arith_vno
+    ||  break;
+    ||case 1:
+    |   mov RB, [BASE+RB*8]
+    |   mov RC, [KBASE+RC*8]
+    |   checkint RB, ->vmeta_arith_nvo
+    |   checkint RC, ->vmeta_arith_nvo
+    |   intins RCd, RBd; jo ->vmeta_arith_nvo
+    ||  break;
+    ||default:
+    |   mov RB, [BASE+RB*8]
+    |   mov RC, [BASE+RC*8]
+    |   checkint RB, ->vmeta_arith_vvo
+    |   checkint RC, ->vmeta_arith_vvo
+    |   intins RBd, RCd; jo ->vmeta_arith_vvo
+    ||  break;
+    ||}
+    ||if (vk == 1) {
+    |   setint RC
+    |   mov [BASE+RA*8], RC
+    ||} else {
+    |   setint RB
+    |   mov [BASE+RA*8], RB
+    ||}
+    |  ins_next
+    |.endmacro
+    |
+    |.macro ins_arithpost
+    |  movsd qword [BASE+RA*8], xmm0
+    |.endmacro
+    |
+    |.macro ins_arith, sseins
+    |  ins_arithpre sseins, xmm0
+    |  ins_arithpost
+    |  ins_next
+    |.endmacro
+    |
+    |.macro ins_arith, intins, sseins
+    |.if DUALNUM
+    |  ins_arithdn intins
+    |.else
+    |  ins_arith, sseins
+    |.endif
+    |.endmacro
+
+    |  // RA = dst, RB = src1 or num const, RC = src2 or num const
+  case BC_ADDVN: case BC_ADDNV: case BC_ADDVV:
+    |  ins_arith add, addsd
+    break;
+  case BC_SUBVN: case BC_SUBNV: case BC_SUBVV:
+    |  ins_arith sub, subsd
+    break;
+  case BC_MULVN: case BC_MULNV: case BC_MULVV:
+    |  ins_arith imul, mulsd
+    break;
+  case BC_DIVVN: case BC_DIVNV: case BC_DIVVV:
+    |  ins_arith divsd
+    break;
+  case BC_MODVN:
+    |  ins_arithpre movsd, xmm1
+    |->BC_MODVN_Z:
+    |  call ->vm_mod
+    |  ins_arithpost
+    |  ins_next
+    break;
+  case BC_MODNV: case BC_MODVV:
+    |  ins_arithpre movsd, xmm1
+    |  jmp ->BC_MODVN_Z			// Avoid 3 copies. It's slow anyway.
+    break;
+  case BC_POW:
+    |  ins_arithpre movsd, xmm1
+    |  mov RB, BASE
+    |  call extern pow
+    |  movzx RAd, PC_RA
+    |  mov BASE, RB
+    |  ins_arithpost
+    |  ins_next
+    break;
+
+  case BC_CAT:
+    |  ins_ABC	// RA = dst, RB = src_start, RC = src_end
+    |  mov L:CARG1, SAVE_L
+    |  mov L:CARG1->base, BASE
+    |  lea CARG2, [BASE+RC*8]
+    |  mov CARG3d, RCd
+    |  sub CARG3d, RBd
+    |->BC_CAT_Z:
+    |  mov L:RB, L:CARG1
+    |  mov SAVE_PC, PC
+    |  call extern lj_meta_cat		// (lua_State *L, TValue *top, int left)
+    |  // NULL (finished) or TValue * (metamethod) returned in eax (RC).
+    |  mov BASE, L:RB->base
+    |  test RC, RC
+    |  jnz ->vmeta_binop
+    |  movzx RBd, PC_RB			// Copy result to Stk[RA] from Stk[RB].
+    |  movzx RAd, PC_RA
+    |  mov RC, [BASE+RB*8]
+    |  mov [BASE+RA*8], RC
+    |  ins_next
+    break;
+
+  /* -- Constant ops ------------------------------------------------------ */
+
+  case BC_KSTR:
+    |  ins_AND	// RA = dst, RD = str const (~)
+    |  mov RD, [KBASE+RD*8]
+    |  settp RD, LJ_TSTR
+    |  mov [BASE+RA*8], RD
+    |  ins_next
+    break;
+  case BC_KCDATA:
+    |.if FFI
+    |  ins_AND	// RA = dst, RD = cdata const (~)
+    |  mov RD, [KBASE+RD*8]
+    |  settp RD, LJ_TCDATA
+    |  mov [BASE+RA*8], RD
+    |  ins_next
+    |.endif
+    break;
+  case BC_KSHORT:
+    |  ins_AD	// RA = dst, RD = signed int16 literal
+    |.if DUALNUM
+    |  movsx RDd, RDW
+    |  setint RD
+    |  mov [BASE+RA*8], RD
+    |.else
+    |  movsx RDd, RDW			// Sign-extend literal.
+    |  cvtsi2sd xmm0, RDd
+    |  movsd qword [BASE+RA*8], xmm0
+    |.endif
+    |  ins_next
+    break;
+  case BC_KNUM:
+    |  ins_AD	// RA = dst, RD = num const
+    |  movsd xmm0, qword [KBASE+RD*8]
+    |  movsd qword [BASE+RA*8], xmm0
+    |  ins_next
+    break;
+  case BC_KPRI:
+    |  ins_AD	// RA = dst, RD = primitive type (~)
+    |  shl RD, 47
+    |  not RD
+    |  mov [BASE+RA*8], RD
+    |  ins_next
+    break;
+  case BC_KNIL:
+    |  ins_AD	// RA = dst_start, RD = dst_end
+    |  lea RA, [BASE+RA*8+8]
+    |  lea RD, [BASE+RD*8]
+    |  mov RB, LJ_TNIL
+    |  mov [RA-8], RB			// Sets minimum 2 slots.
+    |1:
+    |  mov [RA], RB
+    |  add RA, 8
+    |  cmp RA, RD
+    |  jbe <1
+    |  ins_next
+    break;
+
+  /* -- Upvalue and function ops ------------------------------------------ */
+
+  case BC_UGET:
+    |  ins_AD	// RA = dst, RD = upvalue #
+    |  mov LFUNC:RB, [BASE-16]
+    |  cleartp LFUNC:RB
+    |  mov UPVAL:RB, [LFUNC:RB+RD*8+offsetof(GCfuncL, uvptr)]
+    |  mov RB, UPVAL:RB->v
+    |  mov RD, [RB]
+    |  mov [BASE+RA*8], RD
+    |  ins_next
+    break;
+  case BC_USETV:
+#define TV2MARKOFS \
+ ((int32_t)offsetof(GCupval, marked)-(int32_t)offsetof(GCupval, tv))
+    |  ins_AD	// RA = upvalue #, RD = src
+    |  mov LFUNC:RB, [BASE-16]
+    |  cleartp LFUNC:RB
+    |  mov UPVAL:RB, [LFUNC:RB+RA*8+offsetof(GCfuncL, uvptr)]
+    |  cmp byte UPVAL:RB->closed, 0
+    |  mov RB, UPVAL:RB->v
+    |  mov RA, [BASE+RD*8]
+    |  mov [RB], RA
+    |  jz >1
+    |  // Check barrier for closed upvalue.
+    |  test byte [RB+TV2MARKOFS], LJ_GC_BLACK		// isblack(uv)
+    |  jnz >2
+    |1:
+    |  ins_next
+    |
+    |2:  // Upvalue is black. Check if new value is collectable and white.
+    |  mov RD, RA
+    |  sar RD, 47
+    |  sub RDd, LJ_TISGCV
+    |  cmp RDd, LJ_TNUMX - LJ_TISGCV			// tvisgcv(v)
+    |  jbe <1
+    |  cleartp GCOBJ:RA
+    |  test byte GCOBJ:RA->gch.marked, LJ_GC_WHITES	// iswhite(v)
+    |  jz <1
+    |  // Crossed a write barrier. Move the barrier forward.
+    |.if not X64WIN
+    |  mov CARG2, RB
+    |  mov RB, BASE			// Save BASE.
+    |.else
+    |  xchg CARG2, RB			// Save BASE (CARG2 == BASE).
+    |.endif
+    |  lea GL:CARG1, [DISPATCH+GG_DISP2G]
+    |  call extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |  mov BASE, RB			// Restore BASE.
+    |  jmp <1
+    break;
+#undef TV2MARKOFS
+  case BC_USETS:
+    |  ins_AND	// RA = upvalue #, RD = str const (~)
+    |  mov LFUNC:RB, [BASE-16]
+    |  cleartp LFUNC:RB
+    |  mov UPVAL:RB, [LFUNC:RB+RA*8+offsetof(GCfuncL, uvptr)]
+    |  mov STR:RA, [KBASE+RD*8]
+    |  mov RD, UPVAL:RB->v
+    |  settp STR:ITYPE, STR:RA, LJ_TSTR
+    |  mov [RD], STR:ITYPE
+    |  test byte UPVAL:RB->marked, LJ_GC_BLACK		// isblack(uv)
+    |  jnz >2
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if string is white and ensure upvalue is closed.
+    |  test byte GCOBJ:RA->gch.marked, LJ_GC_WHITES	// iswhite(str)
+    |  jz <1
+    |  cmp byte UPVAL:RB->closed, 0
+    |  jz <1
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  mov RB, BASE			// Save BASE (CARG2 == BASE).
+    |  mov CARG2, RD
+    |  lea GL:CARG1, [DISPATCH+GG_DISP2G]
+    |  call extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
+    |  mov BASE, RB			// Restore BASE.
+    |  jmp <1
+    break;
+  case BC_USETN:
+    |  ins_AD	// RA = upvalue #, RD = num const
+    |  mov LFUNC:RB, [BASE-16]
+    |  cleartp LFUNC:RB
+    |  movsd xmm0, qword [KBASE+RD*8]
+    |  mov UPVAL:RB, [LFUNC:RB+RA*8+offsetof(GCfuncL, uvptr)]
+    |  mov RA, UPVAL:RB->v
+    |  movsd qword [RA], xmm0
+    |  ins_next
+    break;
+  case BC_USETP:
+    |  ins_AD	// RA = upvalue #, RD = primitive type (~)
+    |  mov LFUNC:RB, [BASE-16]
+    |  cleartp LFUNC:RB
+    |  mov UPVAL:RB, [LFUNC:RB+RA*8+offsetof(GCfuncL, uvptr)]
+    |  shl RD, 47
+    |  not RD
+    |  mov RA, UPVAL:RB->v
+    |  mov [RA], RD
+    |  ins_next
+    break;
+  case BC_UCLO:
+    |  ins_AD	// RA = level, RD = target
+    |  branchPC RD			// Do this first to free RD.
+    |  mov L:RB, SAVE_L
+    |  cmp aword L:RB->openupval, 0
+    |  je >1
+    |  mov L:RB->base, BASE
+    |  lea CARG2, [BASE+RA*8]		// Caveat: CARG2 == BASE
+    |  mov L:CARG1, L:RB		// Caveat: CARG1 == RA
+    |  call extern lj_func_closeuv	// (lua_State *L, TValue *level)
+    |  mov BASE, L:RB->base
+    |1:
+    |  ins_next
+    break;
+
+  case BC_FNEW:
+    |  ins_AND	// RA = dst, RD = proto const (~) (holding function prototype)
+    |  mov L:RB, SAVE_L
+    |  mov L:RB->base, BASE		// Caveat: CARG2/CARG3 may be BASE.
+    |  mov CARG3, [BASE-16]
+    |  cleartp CARG3
+    |  mov CARG2, [KBASE+RD*8]		// Fetch GCproto *.
+    |  mov CARG1, L:RB
+    |  mov SAVE_PC, PC
+    |  // (lua_State *L, GCproto *pt, GCfuncL *parent)
+    |  call extern lj_func_newL_gc
+    |  // GCfuncL * returned in eax (RC).
+    |  mov BASE, L:RB->base
+    |  movzx RAd, PC_RA
+    |  settp LFUNC:RC, LJ_TFUNC
+    |  mov [BASE+RA*8], LFUNC:RC
+    |  ins_next
+    break;
+
+  /* -- Table ops --------------------------------------------------------- */
+
+  case BC_TNEW:
+    |  ins_AD	// RA = dst, RD = hbits|asize
+    |  mov L:RB, SAVE_L
+    |  mov L:RB->base, BASE
+    |  mov RA, [DISPATCH+DISPATCH_GL(gc.total)]
+    |  cmp RA, [DISPATCH+DISPATCH_GL(gc.threshold)]
+    |  mov SAVE_PC, PC
+    |  jae >5
+    |1:
+    |  mov CARG3d, RDd
+    |  and RDd, 0x7ff
+    |  shr CARG3d, 11
+    |  cmp RDd, 0x7ff
+    |  je >3
+    |2:
+    |  mov L:CARG1, L:RB
+    |  mov CARG2d, RDd
+    |  call extern lj_tab_new  // (lua_State *L, int32_t asize, uint32_t hbits)
+    |  // Table * returned in eax (RC).
+    |  mov BASE, L:RB->base
+    |  movzx RAd, PC_RA
+    |  settp TAB:RC, LJ_TTAB
+    |  mov [BASE+RA*8], TAB:RC
+    |  ins_next
+    |3:  // Turn 0x7ff into 0x801.
+    |  mov RDd, 0x801
+    |  jmp <2
+    |5:
+    |  mov L:CARG1, L:RB
+    |  call extern lj_gc_step_fixtop	// (lua_State *L)
+    |  movzx RDd, PC_RD
+    |  jmp <1
+    break;
+  case BC_TDUP:
+    |  ins_AND	// RA = dst, RD = table const (~) (holding template table)
+    |  mov L:RB, SAVE_L
+    |  mov RA, [DISPATCH+DISPATCH_GL(gc.total)]
+    |  mov SAVE_PC, PC
+    |  cmp RA, [DISPATCH+DISPATCH_GL(gc.threshold)]
+    |  mov L:RB->base, BASE
+    |  jae >3
+    |2:
+    |  mov TAB:CARG2, [KBASE+RD*8]	// Caveat: CARG2 == BASE
+    |  mov L:CARG1, L:RB		// Caveat: CARG1 == RA
+    |  call extern lj_tab_dup		// (lua_State *L, Table *kt)
+    |  // Table * returned in eax (RC).
+    |  mov BASE, L:RB->base
+    |  movzx RAd, PC_RA
+    |  settp TAB:RC, LJ_TTAB
+    |  mov [BASE+RA*8], TAB:RC
+    |  ins_next
+    |3:
+    |  mov L:CARG1, L:RB
+    |  call extern lj_gc_step_fixtop	// (lua_State *L)
+    |  movzx RDd, PC_RD			// Need to reload RD.
+    |  not RD
+    |  jmp <2
+    break;
+
+  case BC_GGET:
+    |  ins_AND	// RA = dst, RD = str const (~)
+    |  mov LFUNC:RB, [BASE-16]
+    |  cleartp LFUNC:RB
+    |  mov TAB:RB, LFUNC:RB->env
+    |  mov STR:RC, [KBASE+RD*8]
+    |  jmp ->BC_TGETS_Z
+    break;
+  case BC_GSET:
+    |  ins_AND	// RA = src, RD = str const (~)
+    |  mov LFUNC:RB, [BASE-16]
+    |  cleartp LFUNC:RB
+    |  mov TAB:RB, LFUNC:RB->env
+    |  mov STR:RC, [KBASE+RD*8]
+    |  jmp ->BC_TSETS_Z
+    break;
+
+  case BC_TGETV:
+    |  ins_ABC	// RA = dst, RB = table, RC = key
+    |  mov TAB:RB, [BASE+RB*8]
+    |  mov RC, [BASE+RC*8]
+    |  checktab TAB:RB, ->vmeta_tgetv
+    |
+    |  // Integer key?
+    |.if DUALNUM
+    |  checkint RC, >5
+    |.else
+    |  // Convert number to int and back and compare.
+    |  checknum RC, >5
+    |  movd xmm0, RC
+    |  cvttsd2si RCd, xmm0
+    |  cvtsi2sd xmm1, RCd
+    |  ucomisd xmm0, xmm1
+    |  jne ->vmeta_tgetv		// Generic numeric key? Use fallback.
+    |.endif
+    |  cmp RCd, TAB:RB->asize		// Takes care of unordered, too.
+    |  jae ->vmeta_tgetv		// Not in array part? Use fallback.
+    |  shl RCd, 3
+    |  add RC, TAB:RB->array
+    |  // Get array slot.
+    |  mov ITYPE, [RC]
+    |  cmp ITYPE, LJ_TNIL		// Avoid overwriting RB in fastpath.
+    |  je >2
+    |1:
+    |  mov [BASE+RA*8], ITYPE
+    |  ins_next
+    |
+    |2:  // Check for __index if table value is nil.
+    |  mov TAB:TMPR, TAB:RB->metatable
+    |  test TAB:TMPR, TAB:TMPR
+    |  jz <1
+    |  test byte TAB:TMPR->nomm, 1<<MM_index
+    |  jz ->vmeta_tgetv			// 'no __index' flag NOT set: check.
+    |  jmp <1
+    |
+    |5:  // String key?
+    |  cmp ITYPEd, LJ_TSTR; jne ->vmeta_tgetv
+    |  cleartp STR:RC
+    |  jmp ->BC_TGETS_Z
+    break;
+  case BC_TGETS:
+    |  ins_ABC	// RA = dst, RB = table, RC = str const (~)
+    |  mov TAB:RB, [BASE+RB*8]
+    |  not RC
+    |  mov STR:RC, [KBASE+RC*8]
+    |  checktab TAB:RB, ->vmeta_tgets
+    |->BC_TGETS_Z:	// RB = GCtab *, RC = GCstr *
+    |  mov TMPRd, TAB:RB->hmask
+    |  and TMPRd, STR:RC->sid
+    |  imul TMPRd, #NODE
+    |  add NODE:TMPR, TAB:RB->node
+    |  settp ITYPE, STR:RC, LJ_TSTR
+    |1:
+    |  cmp NODE:TMPR->key, ITYPE
+    |  jne >4
+    |  // Get node value.
+    |  mov ITYPE, NODE:TMPR->val
+    |  cmp ITYPE, LJ_TNIL
+    |  je >5				// Key found, but nil value?
+    |2:
+    |  mov [BASE+RA*8], ITYPE
+    |  ins_next
+    |
+    |4:  // Follow hash chain.
+    |  mov NODE:TMPR, NODE:TMPR->next
+    |  test NODE:TMPR, NODE:TMPR
+    |  jnz <1
+    |  // End of hash chain: key not found, nil result.
+    |  mov ITYPE, LJ_TNIL
+    |
+    |5:  // Check for __index if table value is nil.
+    |  mov TAB:TMPR, TAB:RB->metatable
+    |  test TAB:TMPR, TAB:TMPR
+    |  jz <2				// No metatable: done.
+    |  test byte TAB:TMPR->nomm, 1<<MM_index
+    |  jnz <2				// 'no __index' flag set: done.
+    |  jmp ->vmeta_tgets		// Caveat: preserve STR:RC.
+    break;
+  case BC_TGETB:
+    |  ins_ABC	// RA = dst, RB = table, RC = byte literal
+    |  mov TAB:RB, [BASE+RB*8]
+    |  checktab TAB:RB, ->vmeta_tgetb
+    |  cmp RCd, TAB:RB->asize
+    |  jae ->vmeta_tgetb
+    |  shl RCd, 3
+    |  add RC, TAB:RB->array
+    |  // Get array slot.
+    |  mov ITYPE, [RC]
+    |  cmp ITYPE, LJ_TNIL
+    |  je >2
+    |1:
+    |  mov [BASE+RA*8], ITYPE
+    |  ins_next
+    |
+    |2:  // Check for __index if table value is nil.
+    |  mov TAB:TMPR, TAB:RB->metatable
+    |  test TAB:TMPR, TAB:TMPR
+    |  jz <1
+    |  test byte TAB:TMPR->nomm, 1<<MM_index
+    |  jz ->vmeta_tgetb			// 'no __index' flag NOT set: check.
+    |  jmp <1
+    break;
+  case BC_TGETR:
+    |  ins_ABC	// RA = dst, RB = table, RC = key
+    |  mov TAB:RB, [BASE+RB*8]
+    |  cleartp TAB:RB
+    |.if DUALNUM
+    |  mov RCd, dword [BASE+RC*8]
+    |.else
+    |  cvttsd2si RCd, qword [BASE+RC*8]
+    |.endif
+    |  cmp RCd, TAB:RB->asize
+    |  jae ->vmeta_tgetr		// Not in array part? Use fallback.
+    |  shl RCd, 3
+    |  add RC, TAB:RB->array
+    |  // Get array slot.
+    |->BC_TGETR_Z:
+    |  mov ITYPE, [RC]
+    |->BC_TGETR2_Z:
+    |  mov [BASE+RA*8], ITYPE
+    |  ins_next
+    break;
+
+  case BC_TSETV:
+    |  ins_ABC	// RA = src, RB = table, RC = key
+    |  mov TAB:RB, [BASE+RB*8]
+    |  mov RC, [BASE+RC*8]
+    |  checktab TAB:RB, ->vmeta_tsetv
+    |
+    |  // Integer key?
+    |.if DUALNUM
+    |  checkint RC, >5
+    |.else
+    |  // Convert number to int and back and compare.
+    |  checknum RC, >5
+    |  movd xmm0, RC
+    |  cvttsd2si RCd, xmm0
+    |  cvtsi2sd xmm1, RCd
+    |  ucomisd xmm0, xmm1
+    |  jne ->vmeta_tsetv		// Generic numeric key? Use fallback.
+    |.endif
+    |  cmp RCd, TAB:RB->asize		// Takes care of unordered, too.
+    |  jae ->vmeta_tsetv
+    |  shl RCd, 3
+    |  add RC, TAB:RB->array
+    |  cmp aword [RC], LJ_TNIL
+    |  je >3				// Previous value is nil?
+    |1:
+    |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+    |  jnz >7
+    |2:  // Set array slot.
+    |  mov RB, [BASE+RA*8]
+    |  mov [RC], RB
+    |  ins_next
+    |
+    |3:  // Check for __newindex if previous value is nil.
+    |  mov TAB:TMPR, TAB:RB->metatable
+    |  test TAB:TMPR, TAB:TMPR
+    |  jz <1
+    |  test byte TAB:TMPR->nomm, 1<<MM_newindex
+    |  jz ->vmeta_tsetv			// 'no __newindex' flag NOT set: check.
+    |  jmp <1
+    |
+    |5:  // String key?
+    |  cmp ITYPEd, LJ_TSTR; jne ->vmeta_tsetv
+    |  cleartp STR:RC
+    |  jmp ->BC_TSETS_Z
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMPR
+    |  jmp <2
+    break;
+  case BC_TSETS:
+    |  ins_ABC	// RA = src, RB = table, RC = str const (~)
+    |  mov TAB:RB, [BASE+RB*8]
+    |  not RC
+    |  mov STR:RC, [KBASE+RC*8]
+    |  checktab TAB:RB, ->vmeta_tsets
+    |->BC_TSETS_Z:	// RB = GCtab *, RC = GCstr *
+    |  mov TMPRd, TAB:RB->hmask
+    |  and TMPRd, STR:RC->sid
+    |  imul TMPRd, #NODE
+    |  mov byte TAB:RB->nomm, 0		// Clear metamethod cache.
+    |  add NODE:TMPR, TAB:RB->node
+    |  settp ITYPE, STR:RC, LJ_TSTR
+    |1:
+    |  cmp NODE:TMPR->key, ITYPE
+    |  jne >5
+    |  // Ok, key found. Assumes: offsetof(Node, val) == 0
+    |  cmp aword [TMPR], LJ_TNIL
+    |  je >4				// Previous value is nil?
+    |2:
+    |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+    |  jnz >7
+    |3:  // Set node value.
+    |  mov ITYPE, [BASE+RA*8]
+    |  mov [TMPR], ITYPE
+    |  ins_next
+    |
+    |4:  // Check for __newindex if previous value is nil.
+    |  mov TAB:ITYPE, TAB:RB->metatable
+    |  test TAB:ITYPE, TAB:ITYPE
+    |  jz <2
+    |  test byte TAB:ITYPE->nomm, 1<<MM_newindex
+    |  jz ->vmeta_tsets			// 'no __newindex' flag NOT set: check.
+    |  jmp <2
+    |
+    |5:  // Follow hash chain.
+    |  mov NODE:TMPR, NODE:TMPR->next
+    |  test NODE:TMPR, NODE:TMPR
+    |  jnz <1
+    |  // End of hash chain: key not found, add a new one.
+    |
+    |  // But check for __newindex first.
+    |  mov TAB:TMPR, TAB:RB->metatable
+    |  test TAB:TMPR, TAB:TMPR
+    |  jz >6				// No metatable: continue.
+    |  test byte TAB:TMPR->nomm, 1<<MM_newindex
+    |  jz ->vmeta_tsets			// 'no __newindex' flag NOT set: check.
+    |6:
+    |  mov TMP1, ITYPE
+    |  mov L:CARG1, SAVE_L
+    |  mov L:CARG1->base, BASE
+    |  lea CARG3, TMP1
+    |  mov CARG2, TAB:RB
+    |  mov SAVE_PC, PC
+    |  call extern lj_tab_newkey	// (lua_State *L, GCtab *t, TValue *k)
+    |  // Handles write barrier for the new key. TValue * returned in eax (RC).
+    |  mov L:CARG1, SAVE_L
+    |  mov BASE, L:CARG1->base
+    |  mov TMPR, rax
+    |  movzx RAd, PC_RA
+    |  jmp <2				// Must check write barrier for value.
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, ITYPE
+    |  jmp <3
+    break;
+  case BC_TSETB:
+    |  ins_ABC	// RA = src, RB = table, RC = byte literal
+    |  mov TAB:RB, [BASE+RB*8]
+    |  checktab TAB:RB, ->vmeta_tsetb
+    |  cmp RCd, TAB:RB->asize
+    |  jae ->vmeta_tsetb
+    |  shl RCd, 3
+    |  add RC, TAB:RB->array
+    |  cmp aword [RC], LJ_TNIL
+    |  je >3				// Previous value is nil?
+    |1:
+    |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+    |  jnz >7
+    |2:	 // Set array slot.
+    |  mov ITYPE, [BASE+RA*8]
+    |  mov [RC], ITYPE
+    |  ins_next
+    |
+    |3:  // Check for __newindex if previous value is nil.
+    |  mov TAB:TMPR, TAB:RB->metatable
+    |  test TAB:TMPR, TAB:TMPR
+    |  jz <1
+    |  test byte TAB:TMPR->nomm, 1<<MM_newindex
+    |  jz ->vmeta_tsetb			// 'no __newindex' flag NOT set: check.
+    |  jmp <1
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMPR
+    |  jmp <2
+    break;
+  case BC_TSETR:
+    |  ins_ABC	// RA = src, RB = table, RC = key
+    |  mov TAB:RB, [BASE+RB*8]
+    |  cleartp TAB:RB
+    |.if DUALNUM
+    |  mov RC, [BASE+RC*8]
+    |.else
+    |  cvttsd2si RCd, qword [BASE+RC*8]
+    |.endif
+    |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+    |  jnz >7
+    |2:
+    |  cmp RCd, TAB:RB->asize
+    |  jae ->vmeta_tsetr
+    |  shl RCd, 3
+    |  add RC, TAB:RB->array
+    |  // Set array slot.
+    |->BC_TSETR_Z:
+    |  mov ITYPE, [BASE+RA*8]
+    |  mov [RC], ITYPE
+    |  ins_next
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, TMPR
+    |  jmp <2
+    break;
+
+  case BC_TSETM:
+    |  ins_AD	// RA = base (table at base-1), RD = num const (start index)
+    |1:
+    |  mov TMPRd, dword [KBASE+RD*8]	// Integer constant is in lo-word.
+    |  lea RA, [BASE+RA*8]
+    |  mov TAB:RB, [RA-8]		// Guaranteed to be a table.
+    |  cleartp TAB:RB
+    |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+    |  jnz >7
+    |2:
+    |  mov RDd, MULTRES
+    |  sub RDd, 1
+    |  jz >4				// Nothing to copy?
+    |  add RDd, TMPRd			// Compute needed size.
+    |  cmp RDd, TAB:RB->asize
+    |  ja >5				// Doesn't fit into array part?
+    |  sub RDd, TMPRd
+    |  shl TMPRd, 3
+    |  add TMPR, TAB:RB->array
+    |3:  // Copy result slots to table.
+    |  mov RB, [RA]
+    |  add RA, 8
+    |  mov [TMPR], RB
+    |  add TMPR, 8
+    |  sub RDd, 1
+    |  jnz <3
+    |4:
+    |  ins_next
+    |
+    |5:  // Need to resize array part.
+    |  mov L:CARG1, SAVE_L
+    |  mov L:CARG1->base, BASE		// Caveat: CARG2/CARG3 may be BASE.
+    |  mov CARG2, TAB:RB
+    |  mov CARG3d, RDd
+    |  mov L:RB, L:CARG1
+    |  mov SAVE_PC, PC
+    |  call extern lj_tab_reasize	// (lua_State *L, GCtab *t, int nasize)
+    |  mov BASE, L:RB->base
+    |  movzx RAd, PC_RA			// Restore RA.
+    |  movzx RDd, PC_RD			// Restore RD.
+    |  jmp <1				// Retry.
+    |
+    |7:  // Possible table write barrier for any value. Skip valiswhite check.
+    |  barrierback TAB:RB, RD
+    |  jmp <2
+    break;
+
+  /* -- Calls and vararg handling ----------------------------------------- */
+
+  case BC_CALL: case BC_CALLM:
+    |  ins_A_C	// RA = base, (RB = nresults+1,) RC = nargs+1 | extra_nargs
+    if (op == BC_CALLM) {
+      |  add NARGS:RDd, MULTRES
+    }
+    |  mov LFUNC:RB, [BASE+RA*8]
+    |  checkfunc LFUNC:RB, ->vmeta_call_ra
+    |  lea BASE, [BASE+RA*8+16]
+    |  ins_call
+    break;
+
+  case BC_CALLMT:
+    |  ins_AD	// RA = base, RD = extra_nargs
+    |  add NARGS:RDd, MULTRES
+    |  // Fall through. Assumes BC_CALLT follows and ins_AD is a no-op.
+    break;
+  case BC_CALLT:
+    |  ins_AD	// RA = base, RD = nargs+1
+    |  lea RA, [BASE+RA*8+16]
+    |  mov KBASE, BASE			// Use KBASE for move + vmeta_call hint.
+    |  mov LFUNC:RB, [RA-16]
+    |  checktp_nc LFUNC:RB, LJ_TFUNC, ->vmeta_call
+    |->BC_CALLT_Z:
+    |  mov PC, [BASE-8]
+    |  test PCd, FRAME_TYPE
+    |  jnz >7
+    |1:
+    |  mov [BASE-16], LFUNC:RB		// Copy func+tag down, reloaded below.
+    |  mov MULTRES, NARGS:RDd
+    |  sub NARGS:RDd, 1
+    |  jz >3
+    |2:  // Move args down.
+    |  mov RB, [RA]
+    |  add RA, 8
+    |  mov [KBASE], RB
+    |  add KBASE, 8
+    |  sub NARGS:RDd, 1
+    |  jnz <2
+    |
+    |  mov LFUNC:RB, [BASE-16]
+    |3:
+    |  cleartp LFUNC:RB
+    |  mov NARGS:RDd, MULTRES
+    |  cmp byte LFUNC:RB->ffid, 1	// (> FF_C) Calling a fast function?
+    |  ja >5
+    |4:
+    |  ins_callt
+    |
+    |5:  // Tailcall to a fast function.
+    |  test PCd, FRAME_TYPE		// Lua frame below?
+    |  jnz <4
+    |  movzx RAd, PC_RA
+    |  neg RA
+    |  mov LFUNC:KBASE, [BASE+RA*8-32]	// Need to prepare KBASE.
+    |  cleartp LFUNC:KBASE
+    |  mov KBASE, LFUNC:KBASE->pc
+    |  mov KBASE, [KBASE+PC2PROTO(k)]
+    |  jmp <4
+    |
+    |7:  // Tailcall from a vararg function.
+    |  sub PC, FRAME_VARG
+    |  test PCd, FRAME_TYPEP
+    |  jnz >8				// Vararg frame below?
+    |  sub BASE, PC			// Need to relocate BASE/KBASE down.
+    |  mov KBASE, BASE
+    |  mov PC, [BASE-8]
+    |  jmp <1
+    |8:
+    |  add PCd, FRAME_VARG
+    |  jmp <1
+    break;
+
+  case BC_ITERC:
+    |  ins_A	// RA = base, (RB = nresults+1,) RC = nargs+1 (2+1)
+    |  lea RA, [BASE+RA*8+16]		// fb = base+2
+    |  mov RB, [RA-32]			// Copy state. fb[0] = fb[-4].
+    |  mov RC, [RA-24]			// Copy control var. fb[1] = fb[-3].
+    |  mov [RA], RB
+    |  mov [RA+8], RC
+    |  mov LFUNC:RB, [RA-40]		// Copy callable. fb[-2] = fb[-5]
+    |  mov [RA-16], LFUNC:RB
+    |  mov NARGS:RDd, 2+1		// Handle like a regular 2-arg call.
+    |  checkfunc LFUNC:RB, ->vmeta_call
+    |  mov BASE, RA
+    |  ins_call
+    break;
+
+  case BC_ITERN:
+    |.if JIT
+    |  hotloop RBd
+    |.endif
+    |->vm_IITERN:
+    |  ins_A	// RA = base, (RB = nresults+1, RC = nargs+1 (2+1))
+    |  mov TAB:RB, [BASE+RA*8-16]
+    |  cleartp TAB:RB
+    |  mov RCd, [BASE+RA*8-8]		// Get index from control var.
+    |  mov TMPRd, TAB:RB->asize
+    |  add PC, 4
+    |  mov ITYPE, TAB:RB->array
+    |1:  // Traverse array part.
+    |  cmp RCd, TMPRd; jae >5		// Index points after array part?
+    |  cmp aword [ITYPE+RC*8], LJ_TNIL; je >4
+    |.if not DUALNUM
+    |  cvtsi2sd xmm0, RCd
+    |.endif
+    |  // Copy array slot to returned value.
+    |  mov RB, [ITYPE+RC*8]
+    |  mov [BASE+RA*8+8], RB
+    |  // Return array index as a numeric key.
+    |.if DUALNUM
+    |  setint ITYPE, RC
+    |  mov [BASE+RA*8], ITYPE
+    |.else
+    |  movsd qword [BASE+RA*8], xmm0
+    |.endif
+    |  add RCd, 1
+    |  mov [BASE+RA*8-8], RCd		// Update control var.
+    |2:
+    |  movzx RDd, PC_RD			// Get target from ITERL.
+    |  branchPC RD
+    |3:
+    |  ins_next
+    |
+    |4:  // Skip holes in array part.
+    |  add RCd, 1
+    |  jmp <1
+    |
+    |5:  // Traverse hash part.
+    |  sub RCd, TMPRd
+    |6:
+    |  cmp RCd, TAB:RB->hmask; ja <3	// End of iteration? Branch to ITERL+1.
+    |  imul ITYPEd, RCd, #NODE
+    |  add NODE:ITYPE, TAB:RB->node
+    |  cmp aword NODE:ITYPE->val, LJ_TNIL; je >7
+    |  lea TMPRd, [RCd+TMPRd+1]
+    |  // Copy key and value from hash slot.
+    |  mov RB, NODE:ITYPE->key
+    |  mov RC, NODE:ITYPE->val
+    |  mov [BASE+RA*8], RB
+    |  mov [BASE+RA*8+8], RC
+    |  mov [BASE+RA*8-8], TMPRd
+    |  jmp <2
+    |
+    |7:  // Skip holes in hash part.
+    |  add RCd, 1
+    |  jmp <6
+    break;
+
+  case BC_ISNEXT:
+    |  ins_AD	// RA = base, RD = target (points to ITERN)
+    |  mov CFUNC:RB, [BASE+RA*8-24]
+    |  checkfunc CFUNC:RB, >5
+    |  checktptp [BASE+RA*8-16], LJ_TTAB, >5
+    |  cmp aword [BASE+RA*8-8], LJ_TNIL; jne >5
+    |  cmp byte CFUNC:RB->ffid, FF_next_N; jne >5
+    |  branchPC RD
+    |  mov64 TMPR, ((uint64_t)LJ_KEYINDEX << 32)
+    |  mov [BASE+RA*8-8], TMPR		// Initialize control var.
+    |1:
+    |  ins_next
+    |5:  // Despecialize bytecode if any of the checks fail.
+    |  mov PC_OP, BC_JMP
+    |  branchPC RD
+    |.if JIT
+    |  cmp byte [PC], BC_ITERN
+    |  jne >6
+    |.endif
+    |  mov byte [PC], BC_ITERC
+    |  jmp <1
+    |.if JIT
+    |6:  // Unpatch JLOOP.
+    |  mov RA, [DISPATCH+DISPATCH_J(trace)]
+    |  movzx RCd, word [PC+2]
+    |  mov TRACE:RA, [RA+RC*8]
+    |  mov eax, TRACE:RA->startins
+    |  mov al, BC_ITERC
+    |  mov dword [PC], eax
+    |  jmp <1
+    |.endif
+    break;
+
+  case BC_VARG:
+    |  ins_ABC	// RA = base, RB = nresults+1, RC = numparams
+    |  lea TMPR, [BASE+RC*8+(16+FRAME_VARG)]
+    |  lea RA, [BASE+RA*8]
+    |  sub TMPR, [BASE-8]
+    |  // Note: TMPR may now be even _above_ BASE if nargs was < numparams.
+    |  test RB, RB
+    |  jz >5				// Copy all varargs?
+    |  lea RB, [RA+RB*8-8]
+    |  cmp TMPR, BASE			// No vararg slots?
+    |  jnb >2
+    |1:  // Copy vararg slots to destination slots.
+    |  mov RC, [TMPR-16]
+    |  add TMPR, 8
+    |  mov [RA], RC
+    |  add RA, 8
+    |  cmp RA, RB			// All destination slots filled?
+    |  jnb >3
+    |  cmp TMPR, BASE			// No more vararg slots?
+    |  jb <1
+    |2:  // Fill up remainder with nil.
+    |  mov aword [RA], LJ_TNIL
+    |  add RA, 8
+    |  cmp RA, RB
+    |  jb <2
+    |3:
+    |  ins_next
+    |
+    |5:  // Copy all varargs.
+    |  mov MULTRES, 1			// MULTRES = 0+1
+    |  mov RC, BASE
+    |  sub RC, TMPR
+    |  jbe <3				// No vararg slots?
+    |  mov RBd, RCd
+    |  shr RBd, 3
+    |  add RBd, 1
+    |  mov MULTRES, RBd			// MULTRES = #varargs+1
+    |  mov L:RB, SAVE_L
+    |  add RC, RA
+    |  cmp RC, L:RB->maxstack
+    |  ja >7				// Need to grow stack?
+    |6:  // Copy all vararg slots.
+    |  mov RC, [TMPR-16]
+    |  add TMPR, 8
+    |  mov [RA], RC
+    |  add RA, 8
+    |  cmp TMPR, BASE			// No more vararg slots?
+    |  jb <6
+    |  jmp <3
+    |
+    |7:  // Grow stack for varargs.
+    |  mov L:RB->base, BASE
+    |  mov L:RB->top, RA
+    |  mov SAVE_PC, PC
+    |  sub TMPR, BASE			// Need delta, because BASE may change.
+    |  mov TMP1hi, TMPRd
+    |  mov CARG2d, MULTRES
+    |  sub CARG2d, 1
+    |  mov CARG1, L:RB
+    |  call extern lj_state_growstack	// (lua_State *L, int n)
+    |  mov BASE, L:RB->base
+    |  movsxd TMPR, TMP1hi
+    |  mov RA, L:RB->top
+    |  add TMPR, BASE
+    |  jmp <6
+    break;
+
+  /* -- Returns ----------------------------------------------------------- */
+
+  case BC_RETM:
+    |  ins_AD	// RA = results, RD = extra_nresults
+    |  add RDd, MULTRES			// MULTRES >=1, so RD >=1.
+    |  // Fall through. Assumes BC_RET follows and ins_AD is a no-op.
+    break;
+
+  case BC_RET: case BC_RET0: case BC_RET1:
+    |  ins_AD	// RA = results, RD = nresults+1
+    if (op != BC_RET0) {
+      |  shl RAd, 3
+    }
+    |1:
+    |  mov PC, [BASE-8]
+    |  mov MULTRES, RDd			// Save nresults+1.
+    |  test PCd, FRAME_TYPE		// Check frame type marker.
+    |  jnz >7				// Not returning to a fixarg Lua func?
+    switch (op) {
+    case BC_RET:
+      |->BC_RET_Z:
+      |  mov KBASE, BASE		// Use KBASE for result move.
+      |  sub RDd, 1
+      |  jz >3
+      |2:  // Move results down.
+      |  mov RB, [KBASE+RA]
+      |  mov [KBASE-16], RB
+      |  add KBASE, 8
+      |  sub RDd, 1
+      |  jnz <2
+      |3:
+      |  mov RDd, MULTRES		// Note: MULTRES may be >255.
+      |  movzx RBd, PC_RB		// So cannot compare with RDL!
+      |5:
+      |  cmp RBd, RDd			// More results expected?
+      |  ja >6
+      break;
+    case BC_RET1:
+      |  mov RB, [BASE+RA]
+      |  mov [BASE-16], RB
+      /* fallthrough */
+    case BC_RET0:
+      |5:
+      |  cmp PC_RB, RDL			// More results expected?
+      |  ja >6
+    default:
+      break;
+    }
+    |  movzx RAd, PC_RA
+    |  neg RA
+    |  lea BASE, [BASE+RA*8-16]		// base = base - (RA+2)*8
+    |  mov LFUNC:KBASE, [BASE-16]
+    |  cleartp LFUNC:KBASE
+    |  mov KBASE, LFUNC:KBASE->pc
+    |  mov KBASE, [KBASE+PC2PROTO(k)]
+    |  ins_next
+    |
+    |6:  // Fill up results with nil.
+    if (op == BC_RET) {
+      |  mov aword [KBASE-16], LJ_TNIL	// Note: relies on shifted base.
+      |  add KBASE, 8
+    } else {
+      |  mov aword [BASE+RD*8-24], LJ_TNIL
+    }
+    |  add RD, 1
+    |  jmp <5
+    |
+    |7:  // Non-standard return case.
+    |  lea RB, [PC-FRAME_VARG]
+    |  test RBd, FRAME_TYPEP
+    |  jnz ->vm_return
+    |  // Return from vararg function: relocate BASE down and RA up.
+    |  sub BASE, RB
+    if (op != BC_RET0) {
+      |  add RA, RB
+    }
+    |  jmp <1
+    break;
+
+  /* -- Loops and branches ------------------------------------------------ */
+
+  |.define FOR_IDX,  [RA]
+  |.define FOR_STOP, [RA+8]
+  |.define FOR_STEP, [RA+16]
+  |.define FOR_EXT,  [RA+24]
+
+  case BC_FORL:
+    |.if JIT
+    |  hotloop RBd
+    |.endif
+    | // Fall through. Assumes BC_IFORL follows and ins_AJ is a no-op.
+    break;
+
+  case BC_JFORI:
+  case BC_JFORL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_FORI:
+  case BC_IFORL:
+    vk = (op == BC_IFORL || op == BC_JFORL);
+    |  ins_AJ	// RA = base, RD = target (after end of loop or start of loop)
+    |  lea RA, [BASE+RA*8]
+    if (LJ_DUALNUM) {
+      |  mov RB, FOR_IDX
+      |  checkint RB, >9
+      |  mov TMPR, FOR_STOP
+      if (!vk) {
+	|  checkint TMPR, ->vmeta_for
+	|  mov ITYPE, FOR_STEP
+	|  test ITYPEd, ITYPEd; js >5
+	|  sar ITYPE, 47;
+	|  cmp ITYPEd, LJ_TISNUM; jne ->vmeta_for
+      } else {
+#ifdef LUA_USE_ASSERT
+	|  checkinttp FOR_STOP, ->assert_bad_for_arg_type
+	|  checkinttp FOR_STEP, ->assert_bad_for_arg_type
+#endif
+	|  mov ITYPE, FOR_STEP
+	|  test ITYPEd, ITYPEd; js >5
+	|  add RBd, ITYPEd; jo >1
+	|  setint RB
+	|  mov FOR_IDX, RB
+      }
+      |  cmp RBd, TMPRd
+      |  mov FOR_EXT, RB
+      if (op == BC_FORI) {
+	|  jle >7
+	|1:
+	|6:
+	|  branchPC RD
+      } else if (op == BC_JFORI) {
+	|  branchPC RD
+	|  movzx RDd, PC_RD
+	|  jle =>BC_JLOOP
+	|1:
+	|6:
+      } else if (op == BC_IFORL) {
+	|  jg >7
+	|6:
+	|  branchPC RD
+	|1:
+      } else {
+	|  jle =>BC_JLOOP
+	|1:
+	|6:
+      }
+      |7:
+      |  ins_next
+      |
+      |5:  // Invert check for negative step.
+      if (!vk) {
+	|  sar ITYPE, 47;
+	|  cmp ITYPEd, LJ_TISNUM; jne ->vmeta_for
+      } else {
+	|  add RBd, ITYPEd; jo <1
+	|  setint RB
+	|  mov FOR_IDX, RB
+      }
+      |  cmp RBd, TMPRd
+      |  mov FOR_EXT, RB
+      if (op == BC_FORI) {
+	|  jge <7
+      } else if (op == BC_JFORI) {
+	|  branchPC RD
+	|  movzx RDd, PC_RD
+	|  jge =>BC_JLOOP
+      } else if (op == BC_IFORL) {
+	|  jl <7
+      } else {
+	|  jge =>BC_JLOOP
+      }
+      |  jmp <6
+      |9:  // Fallback to FP variant.
+      if (!vk) {
+	|  jae ->vmeta_for
+      }
+    } else if (!vk) {
+      |  checknumtp FOR_IDX, ->vmeta_for
+    }
+    if (!vk) {
+      |  checknumtp FOR_STOP, ->vmeta_for
+    } else {
+#ifdef LUA_USE_ASSERT
+      |  checknumtp FOR_STOP, ->assert_bad_for_arg_type
+      |  checknumtp FOR_STEP, ->assert_bad_for_arg_type
+#endif
+    }
+    |  mov RB, FOR_STEP
+    if (!vk) {
+      |  checknum RB, ->vmeta_for
+    }
+    |  movsd xmm0, qword FOR_IDX
+    |  movsd xmm1, qword FOR_STOP
+    if (vk) {
+      |  addsd xmm0, qword FOR_STEP
+      |  movsd qword FOR_IDX, xmm0
+      |  test RB, RB; js >3
+    } else {
+      |  jl >3
+    }
+    |  ucomisd xmm1, xmm0
+    |1:
+    |  movsd qword FOR_EXT, xmm0
+    if (op == BC_FORI) {
+      |.if DUALNUM
+      |  jnb <7
+      |.else
+      |  jnb >2
+      |  branchPC RD
+      |.endif
+    } else if (op == BC_JFORI) {
+      |  branchPC RD
+      |  movzx RDd, PC_RD
+      |  jnb =>BC_JLOOP
+    } else if (op == BC_IFORL) {
+      |.if DUALNUM
+      |  jb <7
+      |.else
+      |  jb >2
+      |  branchPC RD
+      |.endif
+    } else {
+      |  jnb =>BC_JLOOP
+    }
+    |.if DUALNUM
+    |  jmp <6
+    |.else
+    |2:
+    |  ins_next
+    |.endif
+    |
+    |3:  // Invert comparison if step is negative.
+    |  ucomisd xmm0, xmm1
+    |  jmp <1
+    break;
+
+  case BC_ITERL:
+    |.if JIT
+    |  hotloop RBd
+    |.endif
+    | // Fall through. Assumes BC_IITERL follows and ins_AJ is a no-op.
+    break;
+
+  case BC_JITERL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IITERL:
+    |  ins_AJ	// RA = base, RD = target
+    |  lea RA, [BASE+RA*8]
+    |  mov RB, [RA]
+    |  cmp RB, LJ_TNIL; je >1		// Stop if iterator returned nil.
+    if (op == BC_JITERL) {
+      |  mov [RA-8], RB
+      |  jmp =>BC_JLOOP
+    } else {
+      |  branchPC RD			// Otherwise save control var + branch.
+      |  mov [RA-8], RB
+    }
+    |1:
+    |  ins_next
+    break;
+
+  case BC_LOOP:
+    |  ins_A	// RA = base, RD = target (loop extent)
+    |  // Note: RA/RD is only used by trace recorder to determine scope/extent
+    |  // This opcode does NOT jump, it's only purpose is to detect a hot loop.
+    |.if JIT
+    |  hotloop RBd
+    |.endif
+    | // Fall through. Assumes BC_ILOOP follows and ins_A is a no-op.
+    break;
+
+  case BC_ILOOP:
+    |  ins_A	// RA = base, RD = target (loop extent)
+    |  ins_next
+    break;
+
+  case BC_JLOOP:
+    |.if JIT
+    |  ins_AD	// RA = base (ignored), RD = traceno
+    |  mov RA, [DISPATCH+DISPATCH_J(trace)]
+    |  mov TRACE:RD, [RA+RD*8]
+    |  mov RD, TRACE:RD->mcode
+    |  mov L:RB, SAVE_L
+    |  mov [DISPATCH+DISPATCH_GL(jit_base)], BASE
+    |  mov [DISPATCH+DISPATCH_GL(tmpbuf.L)], L:RB
+    |  // Save additional callee-save registers only used in compiled code.
+    |.if X64WIN
+    |  mov CSAVE_4, r12
+    |  mov CSAVE_3, r13
+    |  mov CSAVE_2, r14
+    |  mov CSAVE_1, r15
+    |  mov RA, rsp
+    |  sub rsp, 10*16+4*8
+    |  movdqa [RA-1*16], xmm6
+    |  movdqa [RA-2*16], xmm7
+    |  movdqa [RA-3*16], xmm8
+    |  movdqa [RA-4*16], xmm9
+    |  movdqa [RA-5*16], xmm10
+    |  movdqa [RA-6*16], xmm11
+    |  movdqa [RA-7*16], xmm12
+    |  movdqa [RA-8*16], xmm13
+    |  movdqa [RA-9*16], xmm14
+    |  movdqa [RA-10*16], xmm15
+    |.else
+    |  sub rsp, 16
+    |  mov [rsp+16], r12
+    |  mov [rsp+8], r13
+    |.endif
+    |  jmp RD
+    |.endif
+    break;
+
+  case BC_JMP:
+    |  ins_AJ	// RA = unused, RD = target
+    |  branchPC RD
+    |  ins_next
+    break;
+
+  /* -- Function headers -------------------------------------------------- */
+
+   /*
+   ** Reminder: A function may be called with func/args above L->maxstack,
+   ** i.e. occupying EXTRA_STACK slots. And vmeta_call may add one extra slot,
+   ** too. This means all FUNC* ops (including fast functions) must check
+   ** for stack overflow _before_ adding more slots!
+   */
+
+  case BC_FUNCF:
+    |.if JIT
+    |  hotcall RBd
+    |.endif
+  case BC_FUNCV:  /* NYI: compiled vararg functions. */
+    | // Fall through. Assumes BC_IFUNCF/BC_IFUNCV follow and ins_AD is a no-op.
+    break;
+
+  case BC_JFUNCF:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IFUNCF:
+    |  ins_AD  // BASE = new base, RA = framesize, RD = nargs+1
+    |  mov KBASE, [PC-4+PC2PROTO(k)]
+    |  mov L:RB, SAVE_L
+    |  lea RA, [BASE+RA*8]		// Top of frame.
+    |  cmp RA, L:RB->maxstack
+    |  ja ->vm_growstack_f
+    |  movzx RAd, byte [PC-4+PC2PROTO(numparams)]
+    |  cmp NARGS:RDd, RAd		// Check for missing parameters.
+    |  jbe >3
+    |2:
+    if (op == BC_JFUNCF) {
+      |  movzx RDd, PC_RD
+      |  jmp =>BC_JLOOP
+    } else {
+      |  ins_next
+    }
+    |
+    |3:  // Clear missing parameters.
+    |  mov aword [BASE+NARGS:RD*8-8], LJ_TNIL
+    |  add NARGS:RDd, 1
+    |  cmp NARGS:RDd, RAd
+    |  jbe <3
+    |  jmp <2
+    break;
+
+  case BC_JFUNCV:
+#if !LJ_HASJIT
+    break;
+#endif
+    | int3  // NYI: compiled vararg functions
+    break;  /* NYI: compiled vararg functions. */
+
+  case BC_IFUNCV:
+    |  ins_AD  // BASE = new base, RA = framesize, RD = nargs+1
+    |  lea RBd, [NARGS:RD*8+FRAME_VARG+8]
+    |  lea RD, [BASE+NARGS:RD*8+8]
+    |  mov LFUNC:KBASE, [BASE-16]
+    |  mov [RD-8], RB			// Store delta + FRAME_VARG.
+    |  mov [RD-16], LFUNC:KBASE		// Store copy of LFUNC.
+    |  mov L:RB, SAVE_L
+    |  lea RA, [RD+RA*8]
+    |  cmp RA, L:RB->maxstack
+    |  ja ->vm_growstack_v		// Need to grow stack.
+    |  mov RA, BASE
+    |  mov BASE, RD
+    |  movzx RBd, byte [PC-4+PC2PROTO(numparams)]
+    |  test RBd, RBd
+    |  jz >2
+    |  add RA, 8
+    |1:  // Copy fixarg slots up to new frame.
+    |  add RA, 8
+    |  cmp RA, BASE
+    |  jnb >3				// Less args than parameters?
+    |  mov KBASE, [RA-16]
+    |  mov [RD], KBASE
+    |  add RD, 8
+    |  mov aword [RA-16], LJ_TNIL	// Clear old fixarg slot (help the GC).
+    |  sub RBd, 1
+    |  jnz <1
+    |2:
+    if (op == BC_JFUNCV) {
+      |  movzx RDd, PC_RD
+      |  jmp =>BC_JLOOP
+    } else {
+      |  mov KBASE, [PC-4+PC2PROTO(k)]
+      |  ins_next
+    }
+    |
+    |3:  // Clear missing parameters.
+    |  mov aword [RD], LJ_TNIL
+    |  add RD, 8
+    |  sub RBd, 1
+    |  jnz <3
+    |  jmp <2
+    break;
+
+  case BC_FUNCC:
+  case BC_FUNCCW:
+    |  ins_AD  // BASE = new base, RA = ins RA|RD (unused), RD = nargs+1
+    |  mov CFUNC:RB, [BASE-16]
+    |  cleartp CFUNC:RB
+    |  mov KBASE, CFUNC:RB->f
+    |  mov L:RB, SAVE_L
+    |  lea RD, [BASE+NARGS:RD*8-8]
+    |  mov L:RB->base, BASE
+    |  lea RA, [RD+8*LUA_MINSTACK]
+    |  cmp RA, L:RB->maxstack
+    |  mov L:RB->top, RD
+    if (op == BC_FUNCC) {
+      |  mov CARG1, L:RB		// Caveat: CARG1 may be RA.
+    } else {
+      |  mov CARG2, KBASE
+      |  mov CARG1, L:RB		// Caveat: CARG1 may be RA.
+    }
+    |  ja ->vm_growstack_c		// Need to grow stack.
+    |  set_vmstate C
+    if (op == BC_FUNCC) {
+      |  call KBASE			// (lua_State *L)
+    } else {
+      |  // (lua_State *L, lua_CFunction f)
+      |  call aword [DISPATCH+DISPATCH_GL(wrapf)]
+    }
+    |  // nresults returned in eax (RD).
+    |  mov BASE, L:RB->base
+    |  mov [DISPATCH+DISPATCH_GL(cur_L)], L:RB
+    |  set_vmstate INTERP
+    |  lea RA, [BASE+RD*8]
+    |  neg RA
+    |  add RA, L:RB->top		// RA = (L->top-(L->base+nresults))*8
+    |  mov PC, [BASE-8]			// Fetch PC of caller.
+    |  jmp ->vm_returnc
+    break;
+
+  /* ---------------------------------------------------------------------- */
+
+  default:
+    fprintf(stderr, "Error: undefined opcode BC_%s\n", bc_names[op]);
+    exit(2);
+    break;
+  }
+}
+
+static int build_backend(BuildCtx *ctx)
+{
+  int op;
+  dasm_growpc(Dst, BC__MAX);
+  build_subroutines(ctx);
+  |.code_op
+  for (op = 0; op < BC__MAX; op++)
+    build_ins(ctx, (BCOp)op, op);
+  return BC__MAX;
+}
+
+/* Emit pseudo frame-info for all assembler functions. */
+static void emit_asm_debug(BuildCtx *ctx)
+{
+  int fcofs = (int)((uint8_t *)ctx->glob[GLOB_vm_ffi_call] - ctx->code);
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+    fprintf(ctx->fp, "\t.section .debug_frame,\"\",@progbits\n");
+    fprintf(ctx->fp,
+	".Lframe0:\n"
+	"\t.long .LECIE0-.LSCIE0\n"
+	".LSCIE0:\n"
+	"\t.long 0xffffffff\n"
+	"\t.byte 0x1\n"
+	"\t.string \"\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -8\n"
+	"\t.byte 0x10\n"
+	"\t.byte 0xc\n\t.uleb128 0x7\n\t.uleb128 8\n"
+	"\t.byte 0x80+0x10\n\t.uleb128 0x1\n"
+	"\t.align 8\n"
+	".LECIE0:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE0:\n"
+	"\t.long .LEFDE0-.LASFDE0\n"
+	".LASFDE0:\n"
+	"\t.long .Lframe0\n"
+	"\t.quad .Lbegin\n"
+	"\t.quad %d\n"
+	"\t.byte 0xe\n\t.uleb128 %d\n"		/* def_cfa_offset */
+	"\t.byte 0x86\n\t.uleb128 0x2\n"	/* offset rbp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset rbx */
+	"\t.byte 0x8f\n\t.uleb128 0x4\n"	/* offset r15 */
+	"\t.byte 0x8e\n\t.uleb128 0x5\n"	/* offset r14 */
+#if LJ_NO_UNWIND
+	"\t.byte 0x8d\n\t.uleb128 0x6\n"	/* offset r13 */
+	"\t.byte 0x8c\n\t.uleb128 0x7\n"	/* offset r12 */
+#endif
+	"\t.align 8\n"
+	".LEFDE0:\n\n", fcofs, CFRAME_SIZE);
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".LSFDE1:\n"
+	"\t.long .LEFDE1-.LASFDE1\n"
+	".LASFDE1:\n"
+	"\t.long .Lframe0\n"
+	"\t.quad lj_vm_ffi_call\n"
+	"\t.quad %d\n"
+	"\t.byte 0xe\n\t.uleb128 16\n"		/* def_cfa_offset */
+	"\t.byte 0x86\n\t.uleb128 0x2\n"	/* offset rbp */
+	"\t.byte 0xd\n\t.uleb128 0x6\n"		/* def_cfa_register rbp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset rbx */
+	"\t.align 8\n"
+	".LEFDE1:\n\n", (int)ctx->codesz - fcofs);
+#endif
+#if !LJ_NO_UNWIND
+#if LJ_TARGET_SOLARIS
+    fprintf(ctx->fp, "\t.section .eh_frame,\"a\",@unwind\n");
+#else
+    fprintf(ctx->fp, "\t.section .eh_frame,\"a\",@progbits\n");
+#endif
+    fprintf(ctx->fp,
+	".Lframe1:\n"
+	"\t.long .LECIE1-.LSCIE1\n"
+	".LSCIE1:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zPR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -8\n"
+	"\t.byte 0x10\n"
+	"\t.uleb128 6\n"			/* augmentation length */
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.long lj_err_unwind_dwarf-.\n"
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.uleb128 0x7\n\t.uleb128 8\n"
+	"\t.byte 0x80+0x10\n\t.uleb128 0x1\n"
+	"\t.align 8\n"
+	".LECIE1:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE2:\n"
+	"\t.long .LEFDE2-.LASFDE2\n"
+	".LASFDE2:\n"
+	"\t.long .LASFDE2-.Lframe1\n"
+	"\t.long .Lbegin-.\n"
+	"\t.long %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0xe\n\t.uleb128 %d\n"		/* def_cfa_offset */
+	"\t.byte 0x86\n\t.uleb128 0x2\n"	/* offset rbp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset rbx */
+	"\t.byte 0x8f\n\t.uleb128 0x4\n"	/* offset r15 */
+	"\t.byte 0x8e\n\t.uleb128 0x5\n"	/* offset r14 */
+	"\t.align 8\n"
+	".LEFDE2:\n\n", fcofs, CFRAME_SIZE);
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".Lframe2:\n"
+	"\t.long .LECIE2-.LSCIE2\n"
+	".LSCIE2:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -8\n"
+	"\t.byte 0x10\n"
+	"\t.uleb128 1\n"			/* augmentation length */
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.uleb128 0x7\n\t.uleb128 8\n"
+	"\t.byte 0x80+0x10\n\t.uleb128 0x1\n"
+	"\t.align 8\n"
+	".LECIE2:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE3:\n"
+	"\t.long .LEFDE3-.LASFDE3\n"
+	".LASFDE3:\n"
+	"\t.long .LASFDE3-.Lframe2\n"
+	"\t.long lj_vm_ffi_call-.\n"
+	"\t.long %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0xe\n\t.uleb128 16\n"		/* def_cfa_offset */
+	"\t.byte 0x86\n\t.uleb128 0x2\n"	/* offset rbp */
+	"\t.byte 0xd\n\t.uleb128 0x6\n"		/* def_cfa_register rbp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset rbx */
+	"\t.align 8\n"
+	".LEFDE3:\n\n", (int)ctx->codesz - fcofs);
+#endif
+#endif
+    break;
+#if !LJ_NO_UNWIND
+  /* Mental note: never let Apple design an assembler.
+  ** Or a linker. Or a plastic case. But I digress.
+  */
+  case BUILD_machasm: {
+#if LJ_HASFFI
+    int fcsize = 0;
+#endif
+    int i;
+    fprintf(ctx->fp, "\t.section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support\n");
+    fprintf(ctx->fp,
+	"EH_frame1:\n"
+	"\t.set L$set$x,LECIEX-LSCIEX\n"
+	"\t.long L$set$x\n"
+	"LSCIEX:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.ascii \"zPR\\0\"\n"
+	"\t.byte 0x1\n"
+	"\t.byte 128-8\n"
+	"\t.byte 0x10\n"
+	"\t.byte 6\n"				/* augmentation length */
+	"\t.byte 0x9b\n"			/* indirect|pcrel|sdata4 */
+	"\t.long _lj_err_unwind_dwarf+4@GOTPCREL\n"
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.byte 0x7\n\t.byte 8\n"
+	"\t.byte 0x80+0x10\n\t.byte 0x1\n"
+	"\t.align 3\n"
+	"LECIEX:\n\n");
+    for (i = 0; i < ctx->nsym; i++) {
+      const char *name = ctx->sym[i].name;
+      int32_t size = ctx->sym[i+1].ofs - ctx->sym[i].ofs;
+      if (size == 0) continue;
+#if LJ_HASFFI
+      if (!strcmp(name, "_lj_vm_ffi_call")) { fcsize = size; continue; }
+#endif
+      fprintf(ctx->fp,
+	  "%s.eh:\n"
+	  "LSFDE%d:\n"
+	  "\t.set L$set$%d,LEFDE%d-LASFDE%d\n"
+	  "\t.long L$set$%d\n"
+	  "LASFDE%d:\n"
+	  "\t.long LASFDE%d-EH_frame1\n"
+	  "\t.long %s-.\n"
+	  "\t.long %d\n"
+	  "\t.byte 0\n"				/* augmentation length */
+	  "\t.byte 0xe\n\t.byte %d\n"		/* def_cfa_offset */
+	  "\t.byte 0x86\n\t.byte 0x2\n"		/* offset rbp */
+	  "\t.byte 0x83\n\t.byte 0x3\n"		/* offset rbx */
+	  "\t.byte 0x8f\n\t.byte 0x4\n"		/* offset r15 */
+	  "\t.byte 0x8e\n\t.byte 0x5\n"		/* offset r14 */
+	  "\t.align 3\n"
+	  "LEFDE%d:\n\n",
+	  name, i, i, i, i, i, i, i, name, size, CFRAME_SIZE, i);
+    }
+#if LJ_HASFFI
+    if (fcsize) {
+      fprintf(ctx->fp,
+	  "EH_frame2:\n"
+	  "\t.set L$set$y,LECIEY-LSCIEY\n"
+	  "\t.long L$set$y\n"
+	  "LSCIEY:\n"
+	  "\t.long 0\n"
+	  "\t.byte 0x1\n"
+	  "\t.ascii \"zR\\0\"\n"
+	  "\t.byte 0x1\n"
+	  "\t.byte 128-8\n"
+	  "\t.byte 0x10\n"
+	  "\t.byte 1\n"				/* augmentation length */
+	  "\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	  "\t.byte 0xc\n\t.byte 0x7\n\t.byte 8\n"
+	  "\t.byte 0x80+0x10\n\t.byte 0x1\n"
+	  "\t.align 3\n"
+	  "LECIEY:\n\n");
+      fprintf(ctx->fp,
+	  "_lj_vm_ffi_call.eh:\n"
+	  "LSFDEY:\n"
+	  "\t.set L$set$yy,LEFDEY-LASFDEY\n"
+	  "\t.long L$set$yy\n"
+	  "LASFDEY:\n"
+	  "\t.long LASFDEY-EH_frame2\n"
+	  "\t.long _lj_vm_ffi_call-.\n"
+	  "\t.long %d\n"
+	  "\t.byte 0\n"				/* augmentation length */
+	  "\t.byte 0xe\n\t.byte 16\n"		/* def_cfa_offset */
+	  "\t.byte 0x86\n\t.byte 0x2\n"		/* offset rbp */
+	  "\t.byte 0xd\n\t.byte 0x6\n"		/* def_cfa_register rbp */
+	  "\t.byte 0x83\n\t.byte 0x3\n"		/* offset rbx */
+	  "\t.align 3\n"
+	  "LEFDEY:\n\n", fcsize);
+    }
+#endif
+    fprintf(ctx->fp, ".subsections_via_symbols\n");
+    }
+    break;
+#endif
+  default:  /* Difficult for other modes. */
+    break;
+  }
+}
+
diff --git a/libs/luajit-cmake/luajit/src/vm_x86.dasc b/libs/luajit-cmake/luajit/src/vm_x86.dasc
new file mode 100644
index 0000000..18ca87b
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/vm_x86.dasc
@@ -0,0 +1,5825 @@
+|// Low-level VM code for x86 CPUs.
+|// Bytecode interpreter, fast functions and helper functions.
+|// Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
+|
+|.if P64
+|.arch x64
+|.else
+|.arch x86
+|.endif
+|.section code_op, code_sub
+|
+|.actionlist build_actionlist
+|.globals GLOB_
+|.globalnames globnames
+|.externnames extnames
+|
+|//-----------------------------------------------------------------------
+|
+|.if P64
+|.define X64, 1
+|.if WIN
+|.define X64WIN, 1
+|.endif
+|.endif
+|
+|// Fixed register assignments for the interpreter.
+|// This is very fragile and has many dependencies. Caveat emptor.
+|.define BASE,		edx		// Not C callee-save, refetched anyway.
+|.if not X64
+|.define KBASE,		edi		// Must be C callee-save.
+|.define KBASEa,	KBASE
+|.define PC,		esi		// Must be C callee-save.
+|.define PCa,		PC
+|.define DISPATCH,	ebx		// Must be C callee-save.
+|.elif X64WIN
+|.define KBASE,		edi		// Must be C callee-save.
+|.define KBASEa,	rdi
+|.define PC,		esi		// Must be C callee-save.
+|.define PCa,		rsi
+|.define DISPATCH,	ebx		// Must be C callee-save.
+|.else
+|.define KBASE,		r15d		// Must be C callee-save.
+|.define KBASEa,	r15
+|.define PC,		ebx		// Must be C callee-save.
+|.define PCa,		rbx
+|.define DISPATCH,	r14d		// Must be C callee-save.
+|.endif
+|
+|.define RA,		ecx
+|.define RAH,		ch
+|.define RAL,		cl
+|.define RB,		ebp		// Must be ebp (C callee-save).
+|.define RC,		eax		// Must be eax.
+|.define RCW,		ax
+|.define RCH,		ah
+|.define RCL,		al
+|.define OP,		RB
+|.define RD,		RC
+|.define RDW,		RCW
+|.define RDL,		RCL
+|.if X64
+|.define RAa, rcx
+|.define RBa, rbp
+|.define RCa, rax
+|.define RDa, rax
+|.else
+|.define RAa, RA
+|.define RBa, RB
+|.define RCa, RC
+|.define RDa, RD
+|.endif
+|
+|.if not X64
+|.define FCARG1,	ecx		// x86 fastcall arguments.
+|.define FCARG2,	edx
+|.elif X64WIN
+|.define CARG1,		rcx		// x64/WIN64 C call arguments.
+|.define CARG2,		rdx
+|.define CARG3,		r8
+|.define CARG4,		r9
+|.define CARG1d,	ecx
+|.define CARG2d,	edx
+|.define CARG3d,	r8d
+|.define CARG4d,	r9d
+|.define FCARG1,	CARG1d		// Upwards compatible to x86 fastcall.
+|.define FCARG2,	CARG2d
+|.else
+|.define CARG1,		rdi		// x64/POSIX C call arguments.
+|.define CARG2,		rsi
+|.define CARG3,		rdx
+|.define CARG4,		rcx
+|.define CARG5,		r8
+|.define CARG6,		r9
+|.define CARG1d,	edi
+|.define CARG2d,	esi
+|.define CARG3d,	edx
+|.define CARG4d,	ecx
+|.define CARG5d,	r8d
+|.define CARG6d,	r9d
+|.define FCARG1,	CARG1d		// Simulate x86 fastcall.
+|.define FCARG2,	CARG2d
+|.endif
+|
+|// Type definitions. Some of these are only used for documentation.
+|.type L,		lua_State
+|.type GL,		global_State
+|.type TVALUE,		TValue
+|.type GCOBJ,		GCobj
+|.type STR,		GCstr
+|.type TAB,		GCtab
+|.type LFUNC,		GCfuncL
+|.type CFUNC,		GCfuncC
+|.type PROTO,		GCproto
+|.type UPVAL,		GCupval
+|.type NODE,		Node
+|.type NARGS,		int
+|.type TRACE,		GCtrace
+|.type SBUF,		SBuf
+|
+|// Stack layout while in interpreter. Must match with lj_frame.h.
+|//-----------------------------------------------------------------------
+|.if not X64		// x86 stack layout.
+|
+|.if WIN
+|
+|.define CFRAME_SPACE,	aword*9			// Delta for esp (see <--).
+|.macro saveregs_
+|  push edi; push esi; push ebx
+|  push extern lj_err_unwind_win
+|  fs; push dword [0]
+|  fs; mov [0], esp
+|  sub esp, CFRAME_SPACE
+|.endmacro
+|.macro restoreregs
+|  add esp, CFRAME_SPACE
+|  fs; pop dword [0]
+|  pop edi	// Short for esp += 4.
+|  pop ebx; pop esi; pop edi; pop ebp
+|.endmacro
+|
+|.else
+|
+|.define CFRAME_SPACE,	aword*7			// Delta for esp (see <--).
+|.macro saveregs_
+|  push edi; push esi; push ebx
+|  sub esp, CFRAME_SPACE
+|.endmacro
+|.macro restoreregs
+|  add esp, CFRAME_SPACE
+|  pop ebx; pop esi; pop edi; pop ebp
+|.endmacro
+|
+|.endif
+|
+|.macro saveregs
+|  push ebp; saveregs_
+|.endmacro
+|
+|.if WIN
+|.define SAVE_ERRF,	aword [esp+aword*19]	// vm_pcall/vm_cpcall only.
+|.define SAVE_NRES,	aword [esp+aword*18]
+|.define SAVE_CFRAME,	aword [esp+aword*17]
+|.define SAVE_L,	aword [esp+aword*16]
+|//----- 16 byte aligned, ^^^ arguments from C caller
+|.define SAVE_RET,	aword [esp+aword*15]	//<-- esp entering interpreter.
+|.define SAVE_R4,	aword [esp+aword*14]
+|.define SAVE_R3,	aword [esp+aword*13]
+|.define SAVE_R2,	aword [esp+aword*12]
+|//----- 16 byte aligned
+|.define SAVE_R1,	aword [esp+aword*11]
+|.define SEH_FUNC,	aword [esp+aword*10]
+|.define SEH_NEXT,	aword [esp+aword*9]	//<-- esp after register saves.
+|.define UNUSED2,	aword [esp+aword*8]
+|//----- 16 byte aligned
+|.define UNUSED1,	aword [esp+aword*7]
+|.define SAVE_PC,	aword [esp+aword*6]
+|.define TMP2,		aword [esp+aword*5]
+|.define TMP1,		aword [esp+aword*4]
+|//----- 16 byte aligned
+|.define ARG4,		aword [esp+aword*3]
+|.define ARG3,		aword [esp+aword*2]
+|.define ARG2,		aword [esp+aword*1]
+|.define ARG1,		aword [esp]		//<-- esp while in interpreter.
+|//----- 16 byte aligned, ^^^ arguments for C callee
+|.else
+|.define SAVE_ERRF,	aword [esp+aword*15]	// vm_pcall/vm_cpcall only.
+|.define SAVE_NRES,	aword [esp+aword*14]
+|.define SAVE_CFRAME,	aword [esp+aword*13]
+|.define SAVE_L,	aword [esp+aword*12]
+|//----- 16 byte aligned, ^^^ arguments from C caller
+|.define SAVE_RET,	aword [esp+aword*11]	//<-- esp entering interpreter.
+|.define SAVE_R4,	aword [esp+aword*10]
+|.define SAVE_R3,	aword [esp+aword*9]
+|.define SAVE_R2,	aword [esp+aword*8]
+|//----- 16 byte aligned
+|.define SAVE_R1,	aword [esp+aword*7]	//<-- esp after register saves.
+|.define SAVE_PC,	aword [esp+aword*6]
+|.define TMP2,		aword [esp+aword*5]
+|.define TMP1,		aword [esp+aword*4]
+|//----- 16 byte aligned
+|.define ARG4,		aword [esp+aword*3]
+|.define ARG3,		aword [esp+aword*2]
+|.define ARG2,		aword [esp+aword*1]
+|.define ARG1,		aword [esp]		//<-- esp while in interpreter.
+|//----- 16 byte aligned, ^^^ arguments for C callee
+|.endif
+|
+|// FPARGx overlaps ARGx and ARG(x+1) on x86.
+|.define FPARG3,	qword [esp+qword*1]
+|.define FPARG1,	qword [esp]
+|// TMPQ overlaps TMP1/TMP2. ARG5/MULTRES overlap TMP1/TMP2 (and TMPQ).
+|.define TMPQ,		qword [esp+aword*4]
+|.define TMP3,		ARG4
+|.define ARG5,		TMP1
+|.define TMPa,		TMP1
+|.define MULTRES,	TMP2
+|
+|// Arguments for vm_call and vm_pcall.
+|.define INARG_BASE,	SAVE_CFRAME		// Overwritten by SAVE_CFRAME!
+|
+|// Arguments for vm_cpcall.
+|.define INARG_CP_CALL,	SAVE_ERRF
+|.define INARG_CP_UD,	SAVE_NRES
+|.define INARG_CP_FUNC,	SAVE_CFRAME
+|
+|//-----------------------------------------------------------------------
+|.elif X64WIN		// x64/Windows stack layout
+|
+|.define CFRAME_SPACE,	aword*5			// Delta for rsp (see <--).
+|.macro saveregs_
+|  push rdi; push rsi; push rbx
+|  sub rsp, CFRAME_SPACE
+|.endmacro
+|.macro saveregs
+|  push rbp; saveregs_
+|.endmacro
+|.macro restoreregs
+|  add rsp, CFRAME_SPACE
+|  pop rbx; pop rsi; pop rdi; pop rbp
+|.endmacro
+|
+|.define SAVE_CFRAME,	aword [rsp+aword*13]
+|.define SAVE_PC,	dword [rsp+dword*25]
+|.define SAVE_L,	dword [rsp+dword*24]
+|.define SAVE_ERRF,	dword [rsp+dword*23]
+|.define SAVE_NRES,	dword [rsp+dword*22]
+|.define TMP2,		dword [rsp+dword*21]
+|.define TMP1,		dword [rsp+dword*20]
+|//----- 16 byte aligned, ^^^ 32 byte register save area, owned by interpreter
+|.define SAVE_RET,	aword [rsp+aword*9]	//<-- rsp entering interpreter.
+|.define SAVE_R4,	aword [rsp+aword*8]
+|.define SAVE_R3,	aword [rsp+aword*7]
+|.define SAVE_R2,	aword [rsp+aword*6]
+|.define SAVE_R1,	aword [rsp+aword*5]	//<-- rsp after register saves.
+|.define ARG5,		aword [rsp+aword*4]
+|.define CSAVE_4,	aword [rsp+aword*3]
+|.define CSAVE_3,	aword [rsp+aword*2]
+|.define CSAVE_2,	aword [rsp+aword*1]
+|.define CSAVE_1,	aword [rsp]		//<-- rsp while in interpreter.
+|//----- 16 byte aligned, ^^^ 32 byte register save area, owned by callee
+|
+|// TMPQ overlaps TMP1/TMP2. MULTRES overlaps TMP2 (and TMPQ).
+|.define TMPQ,		qword [rsp+aword*10]
+|.define MULTRES,	TMP2
+|.define TMPa,		ARG5
+|.define ARG5d,		dword [rsp+aword*4]
+|.define TMP3,		ARG5d
+|
+|//-----------------------------------------------------------------------
+|.else			// x64/POSIX stack layout
+|
+|.define CFRAME_SPACE,	aword*5			// Delta for rsp (see <--).
+|.macro saveregs_
+|  push rbx; push r15; push r14
+|.if NO_UNWIND
+|  push r13; push r12
+|.endif
+|  sub rsp, CFRAME_SPACE
+|.endmacro
+|.macro saveregs
+|  push rbp; saveregs_
+|.endmacro
+|.macro restoreregs
+|  add rsp, CFRAME_SPACE
+|.if NO_UNWIND
+|  pop r12; pop r13
+|.endif
+|  pop r14; pop r15; pop rbx; pop rbp
+|.endmacro
+|
+|//----- 16 byte aligned,
+|.if NO_UNWIND
+|.define SAVE_RET,	aword [rsp+aword*11]	//<-- rsp entering interpreter.
+|.define SAVE_R4,	aword [rsp+aword*10]
+|.define SAVE_R3,	aword [rsp+aword*9]
+|.define SAVE_R2,	aword [rsp+aword*8]
+|.define SAVE_R1,	aword [rsp+aword*7]
+|.define SAVE_RU2,	aword [rsp+aword*6]
+|.define SAVE_RU1,	aword [rsp+aword*5]	//<-- rsp after register saves.
+|.else
+|.define SAVE_RET,	aword [rsp+aword*9]	//<-- rsp entering interpreter.
+|.define SAVE_R4,	aword [rsp+aword*8]
+|.define SAVE_R3,	aword [rsp+aword*7]
+|.define SAVE_R2,	aword [rsp+aword*6]
+|.define SAVE_R1,	aword [rsp+aword*5]	//<-- rsp after register saves.
+|.endif
+|.define SAVE_CFRAME,	aword [rsp+aword*4]
+|.define SAVE_PC,	dword [rsp+dword*7]
+|.define SAVE_L,	dword [rsp+dword*6]
+|.define SAVE_ERRF,	dword [rsp+dword*5]
+|.define SAVE_NRES,	dword [rsp+dword*4]
+|.define TMPa,		aword [rsp+aword*1]
+|.define TMP2,		dword [rsp+dword*1]
+|.define TMP1,		dword [rsp]		//<-- rsp while in interpreter.
+|//----- 16 byte aligned
+|
+|// TMPQ overlaps TMP1/TMP2. MULTRES overlaps TMP2 (and TMPQ).
+|.define TMPQ,		qword [rsp]
+|.define TMP3,		dword [rsp+aword*1]
+|.define MULTRES,	TMP2
+|
+|.endif
+|
+|//-----------------------------------------------------------------------
+|
+|// Instruction headers.
+|.macro ins_A; .endmacro
+|.macro ins_AD; .endmacro
+|.macro ins_AJ; .endmacro
+|.macro ins_ABC; movzx RB, RCH; movzx RC, RCL; .endmacro
+|.macro ins_AB_; movzx RB, RCH; .endmacro
+|.macro ins_A_C; movzx RC, RCL; .endmacro
+|.macro ins_AND; not RDa; .endmacro
+|
+|// Instruction decode+dispatch. Carefully tuned (nope, lodsd is not faster).
+|.macro ins_NEXT
+|  mov RC, [PC]
+|  movzx RA, RCH
+|  movzx OP, RCL
+|  add PC, 4
+|  shr RC, 16
+|.if X64
+|  jmp aword [DISPATCH+OP*8]
+|.else
+|  jmp aword [DISPATCH+OP*4]
+|.endif
+|.endmacro
+|
+|// Instruction footer.
+|.if 1
+|  // Replicated dispatch. Less unpredictable branches, but higher I-Cache use.
+|  .define ins_next, ins_NEXT
+|  .define ins_next_, ins_NEXT
+|.else
+|  // Common dispatch. Lower I-Cache use, only one (very) unpredictable branch.
+|  // Affects only certain kinds of benchmarks (and only with -j off).
+|  // Around 10%-30% slower on Core2, a lot more slower on P4.
+|  .macro ins_next
+|    jmp ->ins_next
+|  .endmacro
+|  .macro ins_next_
+|  ->ins_next:
+|    ins_NEXT
+|  .endmacro
+|.endif
+|
+|// Call decode and dispatch.
+|.macro ins_callt
+|  // BASE = new base, RB = LFUNC, RD = nargs+1, [BASE-4] = PC
+|  mov PC, LFUNC:RB->pc
+|  mov RA, [PC]
+|  movzx OP, RAL
+|  movzx RA, RAH
+|  add PC, 4
+|.if X64
+|  jmp aword [DISPATCH+OP*8]
+|.else
+|  jmp aword [DISPATCH+OP*4]
+|.endif
+|.endmacro
+|
+|.macro ins_call
+|  // BASE = new base, RB = LFUNC, RD = nargs+1
+|  mov [BASE-4], PC
+|  ins_callt
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+|
+|// Macros to test operand types.
+|.macro checktp, reg, tp;  cmp dword [BASE+reg*8+4], tp; .endmacro
+|.macro checknum, reg, target; checktp reg, LJ_TISNUM; jae target; .endmacro
+|.macro checkint, reg, target; checktp reg, LJ_TISNUM; jne target; .endmacro
+|.macro checkstr, reg, target; checktp reg, LJ_TSTR; jne target; .endmacro
+|.macro checktab, reg, target; checktp reg, LJ_TTAB; jne target; .endmacro
+|
+|// These operands must be used with movzx.
+|.define PC_OP, byte [PC-4]
+|.define PC_RA, byte [PC-3]
+|.define PC_RB, byte [PC-1]
+|.define PC_RC, byte [PC-2]
+|.define PC_RD, word [PC-2]
+|
+|.macro branchPC, reg
+|  lea PC, [PC+reg*4-BCBIAS_J*4]
+|.endmacro
+|
+|// Assumes DISPATCH is relative to GL.
+#define DISPATCH_GL(field)	(GG_DISP2G + (int)offsetof(global_State, field))
+#define DISPATCH_J(field)	(GG_DISP2J + (int)offsetof(jit_State, field))
+|
+#define PC2PROTO(field)  ((int)offsetof(GCproto, field)-(int)sizeof(GCproto))
+|
+|// Decrement hashed hotcount and trigger trace recorder if zero.
+|.macro hotloop, reg
+|  mov reg, PC
+|  shr reg, 1
+|  and reg, HOTCOUNT_PCMASK
+|  sub word [DISPATCH+reg+GG_DISP2HOT], HOTCOUNT_LOOP
+|  jb ->vm_hotloop
+|.endmacro
+|
+|.macro hotcall, reg
+|  mov reg, PC
+|  shr reg, 1
+|  and reg, HOTCOUNT_PCMASK
+|  sub word [DISPATCH+reg+GG_DISP2HOT], HOTCOUNT_CALL
+|  jb ->vm_hotcall
+|.endmacro
+|
+|// Set current VM state.
+|.macro set_vmstate, st
+|  mov dword [DISPATCH+DISPATCH_GL(vmstate)], ~LJ_VMST_..st
+|.endmacro
+|
+|// x87 compares.
+|.macro fcomparepp			// Compare and pop st0 >< st1.
+|  fucomip st1
+|  fpop
+|.endmacro
+|
+|.macro fpop1; fstp st1; .endmacro
+|
+|// Synthesize SSE FP constants.
+|.macro sseconst_abs, reg, tmp		// Synthesize abs mask.
+|.if X64
+|  mov64 tmp, U64x(7fffffff,ffffffff); movd reg, tmp
+|.else
+|  pxor reg, reg; pcmpeqd reg, reg; psrlq reg, 1
+|.endif
+|.endmacro
+|
+|.macro sseconst_hi, reg, tmp, val	// Synthesize hi-32 bit const.
+|.if X64
+|  mov64 tmp, U64x(val,00000000); movd reg, tmp
+|.else
+|  mov tmp, 0x .. val; movd reg, tmp; pshufd reg, reg, 0x51
+|.endif
+|.endmacro
+|
+|.macro sseconst_sign, reg, tmp		// Synthesize sign mask.
+|  sseconst_hi reg, tmp, 80000000
+|.endmacro
+|.macro sseconst_1, reg, tmp		// Synthesize 1.0.
+|  sseconst_hi reg, tmp, 3ff00000
+|.endmacro
+|.macro sseconst_2p52, reg, tmp		// Synthesize 2^52.
+|  sseconst_hi reg, tmp, 43300000
+|.endmacro
+|.macro sseconst_tobit, reg, tmp	// Synthesize 2^52 + 2^51.
+|  sseconst_hi reg, tmp, 43380000
+|.endmacro
+|
+|// Move table write barrier back. Overwrites reg.
+|.macro barrierback, tab, reg
+|  and byte tab->marked, (uint8_t)~LJ_GC_BLACK	// black2gray(tab)
+|  mov reg, [DISPATCH+DISPATCH_GL(gc.grayagain)]
+|  mov [DISPATCH+DISPATCH_GL(gc.grayagain)], tab
+|  mov tab->gclist, reg
+|.endmacro
+|
+|//-----------------------------------------------------------------------
+
+/* Generate subroutines used by opcodes and other parts of the VM. */
+/* The .code_sub section should be last to help static branch prediction. */
+static void build_subroutines(BuildCtx *ctx)
+{
+  |.code_sub
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Return handling ----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_returnp:
+  |  test PC, FRAME_P
+  |  jz ->cont_dispatch
+  |
+  |  // Return from pcall or xpcall fast func.
+  |  and PC, -8
+  |  sub BASE, PC			// Restore caller base.
+  |  lea RAa, [RA+PC-8]			// Rebase RA and prepend one result.
+  |  mov PC, [BASE-4]			// Fetch PC of previous frame.
+  |  // Prepending may overwrite the pcall frame, so do it at the end.
+  |  mov dword [BASE+RA+4], LJ_TTRUE	// Prepend true to results.
+  |
+  |->vm_returnc:
+  |  add RD, 1				// RD = nresults+1
+  |  jz ->vm_unwind_yield
+  |  mov MULTRES, RD
+  |  test PC, FRAME_TYPE
+  |  jz ->BC_RET_Z			// Handle regular return to Lua.
+  |
+  |->vm_return:
+  |  // BASE = base, RA = resultofs, RD = nresults+1 (= MULTRES), PC = return
+  |  xor PC, FRAME_C
+  |  test PC, FRAME_TYPE
+  |  jnz ->vm_returnp
+  |
+  |  // Return to C.
+  |  set_vmstate C
+  |  and PC, -8
+  |  sub PC, BASE
+  |  neg PC				// Previous base = BASE - delta.
+  |
+  |  sub RD, 1
+  |  jz >2
+  |1:  // Move results down.
+  |.if X64
+  |  mov RBa, [BASE+RA]
+  |  mov [BASE-8], RBa
+  |.else
+  |  mov RB, [BASE+RA]
+  |  mov [BASE-8], RB
+  |  mov RB, [BASE+RA+4]
+  |  mov [BASE-4], RB
+  |.endif
+  |  add BASE, 8
+  |  sub RD, 1
+  |  jnz <1
+  |2:
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, PC
+  |3:
+  |  mov RD, MULTRES
+  |  mov RA, SAVE_NRES			// RA = wanted nresults+1
+  |4:
+  |  cmp RA, RD
+  |  jne >6				// More/less results wanted?
+  |5:
+  |  sub BASE, 8
+  |  mov L:RB->top, BASE
+  |
+  |->vm_leave_cp:
+  |  mov RAa, SAVE_CFRAME		// Restore previous C frame.
+  |  mov L:RB->cframe, RAa
+  |  xor eax, eax			// Ok return status for vm_pcall.
+  |
+  |->vm_leave_unw:
+  |  restoreregs
+  |  ret
+  |
+  |6:
+  |  jb >7				// Less results wanted?
+  |  // More results wanted. Check stack size and fill up results with nil.
+  |  cmp BASE, L:RB->maxstack
+  |  ja >8
+  |  mov dword [BASE-4], LJ_TNIL
+  |  add BASE, 8
+  |  add RD, 1
+  |  jmp <4
+  |
+  |7:  // Less results wanted.
+  |  test RA, RA
+  |  jz <5				// But check for LUA_MULTRET+1.
+  |  sub RA, RD				// Negative result!
+  |  lea BASE, [BASE+RA*8]		// Correct top.
+  |  jmp <5
+  |
+  |8:  // Corner case: need to grow stack for filling up results.
+  |  // This can happen if:
+  |  // - A C function grows the stack (a lot).
+  |  // - The GC shrinks the stack in between.
+  |  // - A return back from a lua_call() with (high) nresults adjustment.
+  |  mov L:RB->top, BASE		// Save current top held in BASE (yes).
+  |  mov MULTRES, RD			// Need to fill only remainder with nil.
+  |  mov FCARG2, RA
+  |  mov FCARG1, L:RB
+  |  call extern lj_state_growstack@8	// (lua_State *L, int n)
+  |  mov BASE, L:RB->top		// Need the (realloced) L->top in BASE.
+  |  jmp <3
+  |
+  |->vm_unwind_yield:
+  |  mov al, LUA_YIELD
+  |  jmp ->vm_unwind_c_eh
+  |
+  |->vm_unwind_c@8:			// Unwind C stack, return from vm_pcall.
+  |  // (void *cframe, int errcode)
+  |.if X64
+  |  mov eax, CARG2d			// Error return status for vm_pcall.
+  |  mov rsp, CARG1
+  |.else
+  |  mov eax, FCARG2			// Error return status for vm_pcall.
+  |  mov esp, FCARG1
+  |.if WIN
+  |  lea FCARG1, SEH_NEXT
+  |  fs; mov [0], FCARG1
+  |.endif
+  |.endif
+  |->vm_unwind_c_eh:			// Landing pad for external unwinder.
+  |  mov L:RB, SAVE_L
+  |  mov GL:RB, L:RB->glref
+  |  mov dword GL:RB->vmstate, ~LJ_VMST_C
+  |  jmp ->vm_leave_unw
+  |
+  |->vm_unwind_rethrow:
+  |.if X64 and not X64WIN
+  |  mov FCARG1, SAVE_L
+  |  mov FCARG2, eax
+  |  restoreregs
+  |  jmp extern lj_err_throw@8		// (lua_State *L, int errcode)
+  |.endif
+  |
+  |->vm_unwind_ff@4:			// Unwind C stack, return from ff pcall.
+  |  // (void *cframe)
+  |.if X64
+  |  and CARG1, CFRAME_RAWMASK
+  |  mov rsp, CARG1
+  |.else
+  |  and FCARG1, CFRAME_RAWMASK
+  |  mov esp, FCARG1
+  |.if WIN
+  |  lea FCARG1, SEH_NEXT
+  |  fs; mov [0], FCARG1
+  |.endif
+  |.endif
+  |->vm_unwind_ff_eh:			// Landing pad for external unwinder.
+  |  mov L:RB, SAVE_L
+  |  mov RAa, -8			// Results start at BASE+RA = BASE-8.
+  |  mov RD, 1+1			// Really 1+2 results, incr. later.
+  |  mov BASE, L:RB->base
+  |  mov DISPATCH, L:RB->glref		// Setup pointer to dispatch table.
+  |  add DISPATCH, GG_G2DISP
+  |  mov PC, [BASE-4]			// Fetch PC of previous frame.
+  |  mov dword [BASE-4], LJ_TFALSE	// Prepend false to error message.
+  |  set_vmstate INTERP
+  |  jmp ->vm_returnc			// Increments RD/MULTRES and returns.
+  |
+  |.if WIN and not X64
+  |->vm_rtlunwind@16:			// Thin layer around RtlUnwind.
+  |  // (void *cframe, void *excptrec, void *unwinder, int errcode)
+  |  mov [esp], FCARG1			// Return value for RtlUnwind.
+  |  push FCARG2			// Exception record for RtlUnwind.
+  |  push 0				// Ignored by RtlUnwind.
+  |  push dword [FCARG1+CFRAME_OFS_SEH]
+  |  call extern RtlUnwind@16		// Violates ABI (clobbers too much).
+  |  mov FCARG1, eax
+  |  mov FCARG2, [esp+4]		// errcode (for vm_unwind_c).
+  |  ret				// Jump to unwinder.
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Grow stack for calls -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_growstack_c:			// Grow stack for C function.
+  |  mov FCARG2, LUA_MINSTACK
+  |  jmp >2
+  |
+  |->vm_growstack_v:			// Grow stack for vararg Lua function.
+  |  sub RD, 8
+  |  jmp >1
+  |
+  |->vm_growstack_f:			// Grow stack for fixarg Lua function.
+  |  // BASE = new base, RD = nargs+1, RB = L, PC = first PC
+  |  lea RD, [BASE+NARGS:RD*8-8]
+  |1:
+  |  movzx RA, byte [PC-4+PC2PROTO(framesize)]
+  |  add PC, 4				// Must point after first instruction.
+  |  mov L:RB->base, BASE
+  |  mov L:RB->top, RD
+  |  mov SAVE_PC, PC
+  |  mov FCARG2, RA
+  |2:
+  |  // RB = L, L->base = new base, L->top = top
+  |  mov FCARG1, L:RB
+  |  call extern lj_state_growstack@8	// (lua_State *L, int n)
+  |  mov BASE, L:RB->base
+  |  mov RD, L:RB->top
+  |  mov LFUNC:RB, [BASE-8]
+  |  sub RD, BASE
+  |  shr RD, 3
+  |  add NARGS:RD, 1
+  |  // BASE = new base, RB = LFUNC, RD = nargs+1
+  |  ins_callt				// Just retry the call.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Entry points into the assembler VM ---------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_resume:				// Setup C frame and resume thread.
+  |  // (lua_State *L, TValue *base, int nres1 = 0, ptrdiff_t ef = 0)
+  |  saveregs
+  |.if X64
+  |  mov L:RB, CARG1d			// Caveat: CARG1d may be RA.
+  |  mov SAVE_L, CARG1d
+  |  mov RA, CARG2d
+  |.else
+  |  mov L:RB, SAVE_L
+  |  mov RA, INARG_BASE			// Caveat: overlaps SAVE_CFRAME!
+  |.endif
+  |  mov PC, FRAME_CP
+  |  xor RD, RD
+  |  lea KBASEa, [esp+CFRAME_RESUME]
+  |  mov DISPATCH, L:RB->glref		// Setup pointer to dispatch table.
+  |  add DISPATCH, GG_G2DISP
+  |  mov SAVE_PC, RD			// Any value outside of bytecode is ok.
+  |  mov SAVE_CFRAME, RDa
+  |.if X64
+  |  mov SAVE_NRES, RD
+  |  mov SAVE_ERRF, RD
+  |.endif
+  |  mov L:RB->cframe, KBASEa
+  |  cmp byte L:RB->status, RDL
+  |  je >2				// Initial resume (like a call).
+  |
+  |  // Resume after yield (like a return).
+  |  mov [DISPATCH+DISPATCH_GL(cur_L)], L:RB
+  |  set_vmstate INTERP
+  |  mov byte L:RB->status, RDL
+  |  mov BASE, L:RB->base
+  |  mov RD, L:RB->top
+  |  sub RD, RA
+  |  shr RD, 3
+  |  add RD, 1				// RD = nresults+1
+  |  sub RA, BASE			// RA = resultofs
+  |  mov PC, [BASE-4]
+  |  mov MULTRES, RD
+  |  test PC, FRAME_TYPE
+  |  jz ->BC_RET_Z
+  |  jmp ->vm_return
+  |
+  |->vm_pcall:				// Setup protected C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1, ptrdiff_t ef)
+  |  saveregs
+  |  mov PC, FRAME_CP
+  |.if X64
+  |  mov SAVE_ERRF, CARG4d
+  |.endif
+  |  jmp >1
+  |
+  |->vm_call:				// Setup C frame and enter VM.
+  |  // (lua_State *L, TValue *base, int nres1)
+  |  saveregs
+  |  mov PC, FRAME_C
+  |
+  |1:  // Entry point for vm_pcall above (PC = ftype).
+  |.if X64
+  |  mov SAVE_NRES, CARG3d
+  |  mov L:RB, CARG1d			// Caveat: CARG1d may be RA.
+  |  mov SAVE_L, CARG1d
+  |  mov RA, CARG2d
+  |.else
+  |  mov L:RB, SAVE_L
+  |  mov RA, INARG_BASE			// Caveat: overlaps SAVE_CFRAME!
+  |.endif
+  |
+  |  mov DISPATCH, L:RB->glref		// Setup pointer to dispatch table.
+  |  mov KBASEa, L:RB->cframe		// Add our C frame to cframe chain.
+  |  mov SAVE_CFRAME, KBASEa
+  |  mov SAVE_PC, L:RB			// Any value outside of bytecode is ok.
+  |  add DISPATCH, GG_G2DISP
+  |.if X64
+  |  mov L:RB->cframe, rsp
+  |.else
+  |  mov L:RB->cframe, esp
+  |.endif
+  |
+  |2:  // Entry point for vm_resume/vm_cpcall (RA = base, RB = L, PC = ftype).
+  |  mov [DISPATCH+DISPATCH_GL(cur_L)], L:RB
+  |  set_vmstate INTERP
+  |  mov BASE, L:RB->base		// BASE = old base (used in vmeta_call).
+  |  add PC, RA
+  |  sub PC, BASE			// PC = frame delta + frame type
+  |
+  |  mov RD, L:RB->top
+  |  sub RD, RA
+  |  shr NARGS:RD, 3
+  |  add NARGS:RD, 1			// RD = nargs+1
+  |
+  |->vm_call_dispatch:
+  |  mov LFUNC:RB, [RA-8]
+  |  cmp dword [RA-4], LJ_TFUNC
+  |  jne ->vmeta_call			// Ensure KBASE defined and != BASE.
+  |
+  |->vm_call_dispatch_f:
+  |  mov BASE, RA
+  |  ins_call
+  |  // BASE = new base, RB = func, RD = nargs+1, PC = caller PC
+  |
+  |->vm_cpcall:				// Setup protected C frame, call C.
+  |  // (lua_State *L, lua_CFunction func, void *ud, lua_CPFunction cp)
+  |  saveregs
+  |.if X64
+  |  mov L:RB, CARG1d			// Caveat: CARG1d may be RA.
+  |  mov SAVE_L, CARG1d
+  |.else
+  |  mov L:RB, SAVE_L
+  |  // Caveat: INARG_CP_* and SAVE_CFRAME/SAVE_NRES/SAVE_ERRF overlap!
+  |  mov RC, INARG_CP_UD		// Get args before they are overwritten.
+  |  mov RA, INARG_CP_FUNC
+  |  mov BASE, INARG_CP_CALL
+  |.endif
+  |  mov SAVE_PC, L:RB			// Any value outside of bytecode is ok.
+  |
+  |  mov KBASE, L:RB->stack		// Compute -savestack(L, L->top).
+  |  sub KBASE, L:RB->top
+  |   mov DISPATCH, L:RB->glref		// Setup pointer to dispatch table.
+  |  mov SAVE_ERRF, 0			// No error function.
+  |  mov SAVE_NRES, KBASE		// Neg. delta means cframe w/o frame.
+  |   add DISPATCH, GG_G2DISP
+  |  // Handler may change cframe_nres(L->cframe) or cframe_errfunc(L->cframe).
+  |
+  |.if X64
+  |  mov KBASEa, L:RB->cframe		// Add our C frame to cframe chain.
+  |  mov SAVE_CFRAME, KBASEa
+  |  mov L:RB->cframe, rsp
+  |  mov [DISPATCH+DISPATCH_GL(cur_L)], L:RB
+  |
+  |  call CARG4			// (lua_State *L, lua_CFunction func, void *ud)
+  |.else
+  |  mov ARG3, RC			// Have to copy args downwards.
+  |  mov ARG2, RA
+  |  mov ARG1, L:RB
+  |
+  |  mov KBASE, L:RB->cframe		// Add our C frame to cframe chain.
+  |  mov SAVE_CFRAME, KBASE
+  |  mov L:RB->cframe, esp
+  |  mov [DISPATCH+DISPATCH_GL(cur_L)], L:RB
+  |
+  |  call BASE			// (lua_State *L, lua_CFunction func, void *ud)
+  |.endif
+  |  // TValue * (new base) or NULL returned in eax (RC).
+  |  test RC, RC
+  |  jz ->vm_leave_cp			// No base? Just remove C frame.
+  |  mov RA, RC
+  |  mov PC, FRAME_CP
+  |  jmp <2				// Else continue with the call.
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Metamethod handling ------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |//-- Continuation dispatch ----------------------------------------------
+  |
+  |->cont_dispatch:
+  |  // BASE = meta base, RA = resultofs, RD = nresults+1 (also in MULTRES)
+  |  add RA, BASE
+  |  and PC, -8
+  |  mov RB, BASE
+  |  sub BASE, PC			// Restore caller BASE.
+  |  mov dword [RA+RD*8-4], LJ_TNIL	// Ensure one valid arg.
+  |  mov RC, RA				// ... in [RC]
+  |  mov PC, [RB-12]			// Restore PC from [cont|PC].
+  |.if X64
+  |  movsxd RAa, dword [RB-16]		// May be negative on WIN64 with debug.
+  |.if FFI
+  |  cmp RA, 1
+  |  jbe >1
+  |.endif
+  |  lea KBASEa, qword [=>0]
+  |  add RAa, KBASEa
+  |.else
+  |  mov RA, dword [RB-16]
+  |.if FFI
+  |  cmp RA, 1
+  |  jbe >1
+  |.endif
+  |.endif
+  |  mov LFUNC:KBASE, [BASE-8]
+  |  mov KBASE, LFUNC:KBASE->pc
+  |  mov KBASE, [KBASE+PC2PROTO(k)]
+  |  // BASE = base, RC = result, RB = meta base
+  |  jmp RAa				// Jump to continuation.
+  |
+  |.if FFI
+  |1:
+  |  je ->cont_ffi_callback		// cont = 1: return from FFI callback.
+  |  // cont = 0: Tail call from C function.
+  |  sub RB, BASE
+  |  shr RB, 3
+  |  lea RD, [RB-1]
+  |  jmp ->vm_call_tail
+  |.endif
+  |
+  |->cont_cat:				// BASE = base, RC = result, RB = mbase
+  |  movzx RA, PC_RB
+  |  sub RB, 16
+  |  lea RA, [BASE+RA*8]
+  |  sub RA, RB
+  |  je ->cont_ra
+  |  neg RA
+  |  shr RA, 3
+  |.if X64WIN
+  |  mov CARG3d, RA
+  |  mov L:CARG1d, SAVE_L
+  |  mov L:CARG1d->base, BASE
+  |  mov RCa, [RC]
+  |  mov [RB], RCa
+  |  mov CARG2d, RB
+  |.elif X64
+  |  mov L:CARG1d, SAVE_L
+  |  mov L:CARG1d->base, BASE
+  |  mov CARG3d, RA
+  |  mov RAa, [RC]
+  |  mov [RB], RAa
+  |  mov CARG2d, RB
+  |.else
+  |  mov ARG3, RA
+  |  mov RA, [RC+4]
+  |  mov RC, [RC]
+  |  mov [RB+4], RA
+  |  mov [RB], RC
+  |  mov ARG2, RB
+  |.endif
+  |  jmp ->BC_CAT_Z
+  |
+  |//-- Table indexing metamethods -----------------------------------------
+  |
+  |->vmeta_tgets:
+  |  mov TMP1, RC			// RC = GCstr *
+  |  mov TMP2, LJ_TSTR
+  |  lea RCa, TMP1			// Store temp. TValue in TMP1/TMP2.
+  |  cmp PC_OP, BC_GGET
+  |  jne >1
+  |  lea RA, [DISPATCH+DISPATCH_GL(tmptv)]  // Store fn->l.env in g->tmptv.
+  |  mov [RA], TAB:RB			// RB = GCtab *
+  |  mov dword [RA+4], LJ_TTAB
+  |  mov RB, RA
+  |  jmp >2
+  |
+  |->vmeta_tgetb:
+  |  movzx RC, PC_RC
+  |.if DUALNUM
+  |  mov TMP2, LJ_TISNUM
+  |  mov TMP1, RC
+  |.else
+  |  cvtsi2sd xmm0, RC
+  |  movsd TMPQ, xmm0
+  |.endif
+  |  lea RCa, TMPQ			// Store temp. TValue in TMPQ.
+  |  jmp >1
+  |
+  |->vmeta_tgetv:
+  |  movzx RC, PC_RC			// Reload TValue *k from RC.
+  |  lea RC, [BASE+RC*8]
+  |1:
+  |  movzx RB, PC_RB			// Reload TValue *t from RB.
+  |  lea RB, [BASE+RB*8]
+  |2:
+  |.if X64
+  |  mov L:CARG1d, SAVE_L
+  |  mov L:CARG1d->base, BASE		// Caveat: CARG2d/CARG3d may be BASE.
+  |  mov CARG2d, RB
+  |  mov CARG3, RCa			// May be 64 bit ptr to stack.
+  |  mov L:RB, L:CARG1d
+  |.else
+  |  mov ARG2, RB
+  |  mov L:RB, SAVE_L
+  |  mov ARG3, RC
+  |  mov ARG1, L:RB
+  |  mov L:RB->base, BASE
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_tget		// (lua_State *L, TValue *o, TValue *k)
+  |  // TValue * (finished) or NULL (metamethod) returned in eax (RC).
+  |  mov BASE, L:RB->base
+  |  test RC, RC
+  |  jz >3
+  |->cont_ra:				// BASE = base, RC = result
+  |  movzx RA, PC_RA
+  |.if X64
+  |  mov RBa, [RC]
+  |  mov [BASE+RA*8], RBa
+  |.else
+  |  mov RB, [RC+4]
+  |  mov RC, [RC]
+  |  mov [BASE+RA*8+4], RB
+  |  mov [BASE+RA*8], RC
+  |.endif
+  |  ins_next
+  |
+  |3:  // Call __index metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k
+  |  mov RA, L:RB->top
+  |  mov [RA-12], PC			// [cont|PC]
+  |  lea PC, [RA+FRAME_CONT]
+  |  sub PC, BASE
+  |  mov LFUNC:RB, [RA-8]		// Guaranteed to be a function here.
+  |  mov NARGS:RD, 2+1			// 2 args for func(t, k).
+  |  jmp ->vm_call_dispatch_f
+  |
+  |->vmeta_tgetr:
+  |  mov FCARG1, TAB:RB
+  |  mov RB, BASE			// Save BASE.
+  |  mov FCARG2, RC			// Caveat: FCARG2 == BASE
+  |  call extern lj_tab_getinth@8	// (GCtab *t, int32_t key)
+  |  // cTValue * or NULL returned in eax (RC).
+  |  movzx RA, PC_RA
+  |  mov BASE, RB			// Restore BASE.
+  |  test RC, RC
+  |  jnz ->BC_TGETR_Z
+  |  mov dword [BASE+RA*8+4], LJ_TNIL
+  |  jmp ->BC_TGETR2_Z
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->vmeta_tsets:
+  |  mov TMP1, RC			// RC = GCstr *
+  |  mov TMP2, LJ_TSTR
+  |  lea RCa, TMP1			// Store temp. TValue in TMP1/TMP2.
+  |  cmp PC_OP, BC_GSET
+  |  jne >1
+  |  lea RA, [DISPATCH+DISPATCH_GL(tmptv)]  // Store fn->l.env in g->tmptv.
+  |  mov [RA], TAB:RB			// RB = GCtab *
+  |  mov dword [RA+4], LJ_TTAB
+  |  mov RB, RA
+  |  jmp >2
+  |
+  |->vmeta_tsetb:
+  |  movzx RC, PC_RC
+  |.if DUALNUM
+  |  mov TMP2, LJ_TISNUM
+  |  mov TMP1, RC
+  |.else
+  |  cvtsi2sd xmm0, RC
+  |  movsd TMPQ, xmm0
+  |.endif
+  |  lea RCa, TMPQ			// Store temp. TValue in TMPQ.
+  |  jmp >1
+  |
+  |->vmeta_tsetv:
+  |  movzx RC, PC_RC			// Reload TValue *k from RC.
+  |  lea RC, [BASE+RC*8]
+  |1:
+  |  movzx RB, PC_RB			// Reload TValue *t from RB.
+  |  lea RB, [BASE+RB*8]
+  |2:
+  |.if X64
+  |  mov L:CARG1d, SAVE_L
+  |  mov L:CARG1d->base, BASE		// Caveat: CARG2d/CARG3d may be BASE.
+  |  mov CARG2d, RB
+  |  mov CARG3, RCa			// May be 64 bit ptr to stack.
+  |  mov L:RB, L:CARG1d
+  |.else
+  |  mov ARG2, RB
+  |  mov L:RB, SAVE_L
+  |  mov ARG3, RC
+  |  mov ARG1, L:RB
+  |  mov L:RB->base, BASE
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_tset		// (lua_State *L, TValue *o, TValue *k)
+  |  // TValue * (finished) or NULL (metamethod) returned in eax (RC).
+  |  mov BASE, L:RB->base
+  |  test RC, RC
+  |  jz >3
+  |  // NOBARRIER: lj_meta_tset ensures the table is not black.
+  |  movzx RA, PC_RA
+  |.if X64
+  |  mov RBa, [BASE+RA*8]
+  |  mov [RC], RBa
+  |.else
+  |  mov RB, [BASE+RA*8+4]
+  |  mov RA, [BASE+RA*8]
+  |  mov [RC+4], RB
+  |  mov [RC], RA
+  |.endif
+  |->cont_nop:				// BASE = base, (RC = result)
+  |  ins_next
+  |
+  |3:  // Call __newindex metamethod.
+  |  // BASE = base, L->top = new base, stack = cont/func/t/k/(v)
+  |  mov RA, L:RB->top
+  |  mov [RA-12], PC			// [cont|PC]
+  |  movzx RC, PC_RA
+  |  // Copy value to third argument.
+  |.if X64
+  |  mov RBa, [BASE+RC*8]
+  |  mov [RA+16], RBa
+  |.else
+  |  mov RB, [BASE+RC*8+4]
+  |  mov RC, [BASE+RC*8]
+  |  mov [RA+20], RB
+  |  mov [RA+16], RC
+  |.endif
+  |  lea PC, [RA+FRAME_CONT]
+  |  sub PC, BASE
+  |  mov LFUNC:RB, [RA-8]		// Guaranteed to be a function here.
+  |  mov NARGS:RD, 3+1			// 3 args for func(t, k, v).
+  |  jmp ->vm_call_dispatch_f
+  |
+  |->vmeta_tsetr:
+  |.if X64WIN
+  |  mov L:CARG1d, SAVE_L
+  |  mov CARG3d, RC
+  |  mov L:CARG1d->base, BASE
+  |  xchg CARG2d, TAB:RB		// Caveat: CARG2d == BASE.
+  |.elif X64
+  |  mov L:CARG1d, SAVE_L
+  |  mov CARG2d, TAB:RB
+  |  mov L:CARG1d->base, BASE
+  |  mov RB, BASE			// Save BASE.
+  |  mov CARG3d, RC			// Caveat: CARG3d == BASE.
+  |.else
+  |  mov L:RA, SAVE_L
+  |  mov ARG2, TAB:RB
+  |  mov RB, BASE			// Save BASE.
+  |  mov ARG3, RC
+  |  mov ARG1, L:RA
+  |  mov L:RA->base, BASE
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_tab_setinth  // (lua_State *L, GCtab *t, int32_t key)
+  |  // TValue * returned in eax (RC).
+  |  movzx RA, PC_RA
+  |  mov BASE, RB			// Restore BASE.
+  |  jmp ->BC_TSETR_Z
+  |
+  |//-- Comparison metamethods ---------------------------------------------
+  |
+  |->vmeta_comp:
+  |.if X64
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG2d/CARG3d == BASE.
+  |.if X64WIN
+  |  lea CARG3d, [BASE+RD*8]
+  |  lea CARG2d, [BASE+RA*8]
+  |.else
+  |  lea CARG2d, [BASE+RA*8]
+  |  lea CARG3d, [BASE+RD*8]
+  |.endif
+  |  mov CARG1d, L:RB			// Caveat: CARG1d/CARG4d == RA.
+  |  movzx CARG4d, PC_OP
+  |.else
+  |  movzx RB, PC_OP
+  |  lea RD, [BASE+RD*8]
+  |  lea RA, [BASE+RA*8]
+  |  mov ARG4, RB
+  |  mov L:RB, SAVE_L
+  |  mov ARG3, RD
+  |  mov ARG2, RA
+  |  mov ARG1, L:RB
+  |  mov L:RB->base, BASE
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_comp	// (lua_State *L, TValue *o1, *o2, int op)
+  |  // 0/1 or TValue * (metamethod) returned in eax (RC).
+  |3:
+  |  mov BASE, L:RB->base
+  |  cmp RC, 1
+  |  ja ->vmeta_binop
+  |4:
+  |  lea PC, [PC+4]
+  |  jb >6
+  |5:
+  |  movzx RD, PC_RD
+  |  branchPC RD
+  |6:
+  |  ins_next
+  |
+  |->cont_condt:			// BASE = base, RC = result
+  |  add PC, 4
+  |  cmp dword [RC+4], LJ_TISTRUECOND	// Branch if result is true.
+  |  jb <5
+  |  jmp <6
+  |
+  |->cont_condf:			// BASE = base, RC = result
+  |  cmp dword [RC+4], LJ_TISTRUECOND	// Branch if result is false.
+  |  jmp <4
+  |
+  |->vmeta_equal:
+  |  sub PC, 4
+  |.if X64WIN
+  |  mov CARG3d, RD
+  |  mov CARG4d, RB
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG2d == BASE.
+  |  mov CARG2d, RA
+  |  mov CARG1d, L:RB			// Caveat: CARG1d == RA.
+  |.elif X64
+  |  mov CARG2d, RA
+  |  mov CARG4d, RB			// Caveat: CARG4d == RA.
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG3d == BASE.
+  |  mov CARG3d, RD
+  |  mov CARG1d, L:RB
+  |.else
+  |  mov ARG4, RB
+  |  mov L:RB, SAVE_L
+  |  mov ARG3, RD
+  |  mov ARG2, RA
+  |  mov ARG1, L:RB
+  |  mov L:RB->base, BASE
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_equal	// (lua_State *L, GCobj *o1, *o2, int ne)
+  |  // 0/1 or TValue * (metamethod) returned in eax (RC).
+  |  jmp <3
+  |
+  |->vmeta_equal_cd:
+  |.if FFI
+  |  sub PC, 4
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov FCARG1, L:RB
+  |  mov FCARG2, dword [PC-4]
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_equal_cd@8	// (lua_State *L, BCIns ins)
+  |  // 0/1 or TValue * (metamethod) returned in eax (RC).
+  |  jmp <3
+  |.endif
+  |
+  |->vmeta_istype:
+  |.if X64
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG2d/CARG3d may be BASE.
+  |  mov CARG2d, RA
+  |  movzx CARG3d, PC_RD
+  |  mov L:CARG1d, L:RB
+  |.else
+  |  movzx RD, PC_RD
+  |  mov ARG2, RA
+  |  mov L:RB, SAVE_L
+  |  mov ARG3, RD
+  |  mov ARG1, L:RB
+  |  mov L:RB->base, BASE
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_istype  // (lua_State *L, BCReg ra, BCReg tp)
+  |  mov BASE, L:RB->base
+  |  jmp <6
+  |
+  |//-- Arithmetic metamethods ---------------------------------------------
+  |
+  |->vmeta_arith_vno:
+  |.if DUALNUM
+  |  movzx RB, PC_RB
+  |.endif
+  |->vmeta_arith_vn:
+  |  lea RC, [KBASE+RC*8]
+  |  jmp >1
+  |
+  |->vmeta_arith_nvo:
+  |.if DUALNUM
+  |  movzx RC, PC_RC
+  |.endif
+  |->vmeta_arith_nv:
+  |  lea RC, [KBASE+RC*8]
+  |  lea RB, [BASE+RB*8]
+  |  xchg RB, RC
+  |  jmp >2
+  |
+  |->vmeta_unm:
+  |  lea RC, [BASE+RD*8]
+  |  mov RB, RC
+  |  jmp >2
+  |
+  |->vmeta_arith_vvo:
+  |.if DUALNUM
+  |  movzx RB, PC_RB
+  |.endif
+  |->vmeta_arith_vv:
+  |  lea RC, [BASE+RC*8]
+  |1:
+  |  lea RB, [BASE+RB*8]
+  |2:
+  |  lea RA, [BASE+RA*8]
+  |.if X64WIN
+  |  mov CARG3d, RB
+  |  mov CARG4d, RC
+  |  movzx RC, PC_OP
+  |  mov ARG5d, RC
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG2d == BASE.
+  |  mov CARG2d, RA
+  |  mov CARG1d, L:RB			// Caveat: CARG1d == RA.
+  |.elif X64
+  |  movzx CARG5d, PC_OP
+  |  mov CARG2d, RA
+  |  mov CARG4d, RC			// Caveat: CARG4d == RA.
+  |  mov L:CARG1d, SAVE_L
+  |  mov L:CARG1d->base, BASE		// Caveat: CARG3d == BASE.
+  |  mov CARG3d, RB
+  |  mov L:RB, L:CARG1d
+  |.else
+  |  mov ARG3, RB
+  |  mov L:RB, SAVE_L
+  |  mov ARG4, RC
+  |  movzx RC, PC_OP
+  |  mov ARG2, RA
+  |  mov ARG5, RC
+  |  mov ARG1, L:RB
+  |  mov L:RB->base, BASE
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_arith	// (lua_State *L, TValue *ra,*rb,*rc, BCReg op)
+  |  // NULL (finished) or TValue * (metamethod) returned in eax (RC).
+  |  mov BASE, L:RB->base
+  |  test RC, RC
+  |  jz ->cont_nop
+  |
+  |  // Call metamethod for binary op.
+  |->vmeta_binop:
+  |  // BASE = base, RC = new base, stack = cont/func/o1/o2
+  |  mov RA, RC
+  |  sub RC, BASE
+  |  mov [RA-12], PC			// [cont|PC]
+  |  lea PC, [RC+FRAME_CONT]
+  |  mov NARGS:RD, 2+1			// 2 args for func(o1, o2).
+  |  jmp ->vm_call_dispatch
+  |
+  |->vmeta_len:
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  lea FCARG2, [BASE+RD*8]		// Caveat: FCARG2 == BASE
+  |  mov L:FCARG1, L:RB
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_len@8		// (lua_State *L, TValue *o)
+  |  // NULL (retry) or TValue * (metamethod) returned in eax (RC).
+  |  mov BASE, L:RB->base
+#if LJ_52
+  |  test RC, RC
+  |  jne ->vmeta_binop			// Binop call for compatibility.
+  |  movzx RD, PC_RD
+  |  mov TAB:FCARG1, [BASE+RD*8]
+  |  jmp ->BC_LEN_Z
+#else
+  |  jmp ->vmeta_binop			// Binop call for compatibility.
+#endif
+  |
+  |//-- Call metamethod ----------------------------------------------------
+  |
+  |->vmeta_call_ra:
+  |  lea RA, [BASE+RA*8+8]
+  |->vmeta_call:			// Resolve and call __call metamethod.
+  |  // BASE = old base, RA = new base, RC = nargs+1, PC = return
+  |  mov TMP2, RA			// Save RA, RC for us.
+  |  mov TMP1, NARGS:RD
+  |  sub RA, 8
+  |.if X64
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Caveat: CARG2d/CARG3d may be BASE.
+  |  mov CARG2d, RA
+  |  lea CARG3d, [RA+NARGS:RD*8]
+  |  mov CARG1d, L:RB			// Caveat: CARG1d may be RA.
+  |.else
+  |  lea RC, [RA+NARGS:RD*8]
+  |  mov L:RB, SAVE_L
+  |  mov ARG2, RA
+  |  mov ARG3, RC
+  |  mov ARG1, L:RB
+  |  mov L:RB->base, BASE		// This is the callers base!
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
+  |  mov BASE, L:RB->base
+  |  mov RA, TMP2
+  |  mov NARGS:RD, TMP1
+  |  mov LFUNC:RB, [RA-8]
+  |  add NARGS:RD, 1
+  |  // This is fragile. L->base must not move, KBASE must always be defined.
+  |.if x64
+  |  cmp KBASEa, rdx			// Continue with CALLT if flag set.
+  |.else
+  |  cmp KBASE, BASE			// Continue with CALLT if flag set.
+  |.endif
+  |  je ->BC_CALLT_Z
+  |  mov BASE, RA
+  |  ins_call				// Otherwise call resolved metamethod.
+  |
+  |//-- Argument coercion for 'for' statement ------------------------------
+  |
+  |->vmeta_for:
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov FCARG2, RA			// Caveat: FCARG2 == BASE
+  |  mov L:FCARG1, L:RB			// Caveat: FCARG1 == RA
+  |  mov SAVE_PC, PC
+  |  call extern lj_meta_for@8	// (lua_State *L, TValue *base)
+  |  mov BASE, L:RB->base
+  |  mov RC, [PC-4]
+  |  movzx RA, RCH
+  |  movzx OP, RCL
+  |  shr RC, 16
+  |.if X64
+  |  jmp aword [DISPATCH+OP*8+GG_DISP2STATIC]	// Retry FORI or JFORI.
+  |.else
+  |  jmp aword [DISPATCH+OP*4+GG_DISP2STATIC]	// Retry FORI or JFORI.
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Fast functions -----------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |.macro .ffunc, name
+  |->ff_ .. name:
+  |.endmacro
+  |
+  |.macro .ffunc_1, name
+  |->ff_ .. name:
+  |  cmp NARGS:RD, 1+1;  jb ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_2, name
+  |->ff_ .. name:
+  |  cmp NARGS:RD, 2+1;  jb ->fff_fallback
+  |.endmacro
+  |
+  |.macro .ffunc_nsse, name, op
+  |  .ffunc_1 name
+  |  cmp dword [BASE+4], LJ_TISNUM;  jae ->fff_fallback
+  |  op xmm0, qword [BASE]
+  |.endmacro
+  |
+  |.macro .ffunc_nsse, name
+  |  .ffunc_nsse name, movsd
+  |.endmacro
+  |
+  |.macro .ffunc_nnsse, name
+  |  .ffunc_2 name
+  |  cmp dword [BASE+4], LJ_TISNUM;  jae ->fff_fallback
+  |  cmp dword [BASE+12], LJ_TISNUM;  jae ->fff_fallback
+  |  movsd xmm0, qword [BASE]
+  |  movsd xmm1, qword [BASE+8]
+  |.endmacro
+  |
+  |.macro .ffunc_nnr, name
+  |  .ffunc_2 name
+  |  cmp dword [BASE+4], LJ_TISNUM;  jae ->fff_fallback
+  |  cmp dword [BASE+12], LJ_TISNUM;  jae ->fff_fallback
+  |  fld qword [BASE+8]
+  |  fld qword [BASE]
+  |.endmacro
+  |
+  |// Inlined GC threshold check. Caveat: uses label 1.
+  |.macro ffgccheck
+  |  mov RB, [DISPATCH+DISPATCH_GL(gc.total)]
+  |  cmp RB, [DISPATCH+DISPATCH_GL(gc.threshold)]
+  |  jb >1
+  |  call ->fff_gcstep
+  |1:
+  |.endmacro
+  |
+  |//-- Base library: checks -----------------------------------------------
+  |
+  |.ffunc_1 assert
+  |  mov RB, [BASE+4]
+  |  cmp RB, LJ_TISTRUECOND;  jae ->fff_fallback
+  |  mov PC, [BASE-4]
+  |  mov MULTRES, RD
+  |  mov [BASE-4], RB
+  |  mov RB, [BASE]
+  |  mov [BASE-8], RB
+  |  sub RD, 2
+  |  jz >2
+  |  mov RA, BASE
+  |1:
+  |  add RA, 8
+  |.if X64
+  |  mov RBa, [RA]
+  |  mov [RA-8], RBa
+  |.else
+  |  mov RB, [RA+4]
+  |  mov [RA-4], RB
+  |  mov RB, [RA]
+  |  mov [RA-8], RB
+  |.endif
+  |  sub RD, 1
+  |  jnz <1
+  |2:
+  |  mov RD, MULTRES
+  |  jmp ->fff_res_
+  |
+  |.ffunc_1 type
+  |  mov RB, [BASE+4]
+  |.if X64
+  |  mov RA, RB
+  |  sar RA, 15
+  |  cmp RA, -2
+  |  je >3
+  |.endif
+  |  mov RC, ~LJ_TNUMX
+  |  not RB
+  |  cmp RC, RB
+  |  cmova RC, RB
+  |2:
+  |  mov CFUNC:RB, [BASE-8]
+  |  mov STR:RC, [CFUNC:RB+RC*8+((char *)(&((GCfuncC *)0)->upvalue))]
+  |  mov PC, [BASE-4]
+  |  mov dword [BASE-4], LJ_TSTR
+  |  mov [BASE-8], STR:RC
+  |  jmp ->fff_res1
+  |.if X64
+  |3:
+  |  mov RC, ~LJ_TLIGHTUD
+  |  jmp <2
+  |.endif
+  |
+  |//-- Base library: getters and setters ---------------------------------
+  |
+  |.ffunc_1 getmetatable
+  |  mov RB, [BASE+4]
+  |  mov PC, [BASE-4]
+  |  cmp RB, LJ_TTAB;  jne >6
+  |1:  // Field metatable must be at same offset for GCtab and GCudata!
+  |  mov TAB:RB, [BASE]
+  |  mov TAB:RB, TAB:RB->metatable
+  |2:
+  |  test TAB:RB, TAB:RB
+  |  mov dword [BASE-4], LJ_TNIL
+  |  jz ->fff_res1
+  |  mov STR:RC, [DISPATCH+DISPATCH_GL(gcroot)+4*(GCROOT_MMNAME+MM_metatable)]
+  |  mov dword [BASE-4], LJ_TTAB	// Store metatable as default result.
+  |  mov [BASE-8], TAB:RB
+  |  mov RA, TAB:RB->hmask
+  |  and RA, STR:RC->sid
+  |  imul RA, #NODE
+  |  add NODE:RA, TAB:RB->node
+  |3:  // Rearranged logic, because we expect _not_ to find the key.
+  |  cmp dword NODE:RA->key.it, LJ_TSTR
+  |  jne >4
+  |  cmp dword NODE:RA->key.gcr, STR:RC
+  |  je >5
+  |4:
+  |  mov NODE:RA, NODE:RA->next
+  |  test NODE:RA, NODE:RA
+  |  jnz <3
+  |  jmp ->fff_res1			// Not found, keep default result.
+  |5:
+  |  mov RB, [RA+4]
+  |  cmp RB, LJ_TNIL;  je ->fff_res1	// Ditto for nil value.
+  |  mov RC, [RA]
+  |  mov [BASE-4], RB			// Return value of mt.__metatable.
+  |  mov [BASE-8], RC
+  |  jmp ->fff_res1
+  |
+  |6:
+  |  cmp RB, LJ_TUDATA;  je <1
+  |.if X64
+  |  cmp RB, LJ_TNUMX;  ja >8
+  |  cmp RB, LJ_TISNUM;  jbe >7
+  |  mov RB, LJ_TLIGHTUD
+  |  jmp >8
+  |7:
+  |.else
+  |  cmp RB, LJ_TISNUM;  ja >8
+  |.endif
+  |  mov RB, LJ_TNUMX
+  |8:
+  |  not RB
+  |  mov TAB:RB, [DISPATCH+RB*4+DISPATCH_GL(gcroot[GCROOT_BASEMT])]
+  |  jmp <2
+  |
+  |.ffunc_2 setmetatable
+  |  cmp dword [BASE+4], LJ_TTAB;  jne ->fff_fallback
+  |  // Fast path: no mt for table yet and not clearing the mt.
+  |  mov TAB:RB, [BASE]
+  |  cmp dword TAB:RB->metatable, 0;  jne ->fff_fallback
+  |  cmp dword [BASE+12], LJ_TTAB;  jne ->fff_fallback
+  |  mov TAB:RC, [BASE+8]
+  |  mov TAB:RB->metatable, TAB:RC
+  |  mov PC, [BASE-4]
+  |  mov dword [BASE-4], LJ_TTAB		// Return original table.
+  |  mov [BASE-8], TAB:RB
+  |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+  |  jz >1
+  |  // Possible write barrier. Table is black, but skip iswhite(mt) check.
+  |  barrierback TAB:RB, RC
+  |1:
+  |  jmp ->fff_res1
+  |
+  |.ffunc_2 rawget
+  |  cmp dword [BASE+4], LJ_TTAB;  jne ->fff_fallback
+  |.if X64WIN
+  |  mov RB, BASE			// Save BASE.
+  |  lea CARG3d, [BASE+8]
+  |  mov CARG2d, [BASE]			// Caveat: CARG2d == BASE.
+  |  mov CARG1d, SAVE_L
+  |.elif X64
+  |  mov RB, BASE			// Save BASE.
+  |  mov CARG2d, [BASE]
+  |  lea CARG3d, [BASE+8]		// Caveat: CARG3d == BASE.
+  |  mov CARG1d, SAVE_L
+  |.else
+  |  mov TAB:RD, [BASE]
+  |  mov L:RB, SAVE_L
+  |  mov ARG2, TAB:RD
+  |  mov ARG1, L:RB
+  |  mov RB, BASE			// Save BASE.
+  |  add BASE, 8
+  |  mov ARG3, BASE
+  |.endif
+  |  call extern lj_tab_get	// (lua_State *L, GCtab *t, cTValue *key)
+  |  // cTValue * returned in eax (RD).
+  |  mov BASE, RB			// Restore BASE.
+  |  // Copy table slot.
+  |.if X64
+  |  mov RBa, [RD]
+  |  mov PC, [BASE-4]
+  |  mov [BASE-8], RBa
+  |.else
+  |  mov RB, [RD]
+  |  mov RD, [RD+4]
+  |  mov PC, [BASE-4]
+  |  mov [BASE-8], RB
+  |  mov [BASE-4], RD
+  |.endif
+  |  jmp ->fff_res1
+  |
+  |//-- Base library: conversions ------------------------------------------
+  |
+  |.ffunc tonumber
+  |  // Only handles the number case inline (without a base argument).
+  |  cmp NARGS:RD, 1+1;  jne ->fff_fallback	// Exactly one argument.
+  |  cmp dword [BASE+4], LJ_TISNUM
+  |.if DUALNUM
+  |  jne >1
+  |  mov RB, dword [BASE]; jmp ->fff_resi
+  |1:
+  |  ja ->fff_fallback
+  |.else
+  |  jae ->fff_fallback
+  |.endif
+  |  movsd xmm0, qword [BASE]; jmp ->fff_resxmm0
+  |
+  |.ffunc_1 tostring
+  |  // Only handles the string or number case inline.
+  |  mov PC, [BASE-4]
+  |  cmp dword [BASE+4], LJ_TSTR;  jne >3
+  |  // A __tostring method in the string base metatable is ignored.
+  |  mov STR:RD, [BASE]
+  |2:
+  |  mov dword [BASE-4], LJ_TSTR
+  |  mov [BASE-8], STR:RD
+  |  jmp ->fff_res1
+  |3:  // Handle numbers inline, unless a number base metatable is present.
+  |  cmp dword [BASE+4], LJ_TISNUM;  ja ->fff_fallback
+  |  cmp dword [DISPATCH+DISPATCH_GL(gcroot[GCROOT_BASEMT_NUM])], 0
+  |  jne ->fff_fallback
+  |  ffgccheck				// Caveat: uses label 1.
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE		// Add frame since C call can throw.
+  |  mov SAVE_PC, PC			// Redundant (but a defined value).
+  |.if X64 and not X64WIN
+  |  mov FCARG2, BASE			// Otherwise: FCARG2 == BASE
+  |.endif
+  |  mov L:FCARG1, L:RB
+  |.if DUALNUM
+  |  call extern lj_strfmt_number@8	// (lua_State *L, cTValue *o)
+  |.else
+  |  call extern lj_strfmt_num@8	// (lua_State *L, lua_Number *np)
+  |.endif
+  |  // GCstr returned in eax (RD).
+  |  mov BASE, L:RB->base
+  |  jmp <2
+  |
+  |//-- Base library: iterators -------------------------------------------
+  |
+  |.ffunc_1 next
+  |  je >2				// Missing 2nd arg?
+  |1:
+  |  cmp dword [BASE+4], LJ_TTAB;  jne ->fff_fallback
+  |  mov PC, [BASE-4]
+  |  mov RB, BASE			// Save BASE.
+  |.if X64WIN
+  |  mov CARG1d, [BASE]
+  |  lea CARG3d, [BASE-8]
+  |  lea CARG2d, [BASE+8]		// Caveat: CARG2d == BASE.
+  |.elif X64
+  |  mov CARG1d, [BASE]
+  |  lea CARG2d, [BASE+8]
+  |  lea CARG3d, [BASE-8]		// Caveat: CARG3d == BASE.
+  |.else
+  |  mov TAB:RD, [BASE]
+  |  mov ARG1, TAB:RD
+  |  add BASE, 8
+  |  mov ARG2, BASE
+  |  sub BASE, 8+8
+  |  mov ARG3, BASE
+  |.endif
+  |  call extern lj_tab_next		// (GCtab *t, cTValue *key, TValue *o)
+  |  // 1=found, 0=end, -1=error returned in eax (RD).
+  |  mov BASE, RB			// Restore BASE.
+  |  test RD, RD;  jg ->fff_res2	// Found key/value.
+  |  js ->fff_fallback_2		// Invalid key.
+  |  // End of traversal: return nil.
+  |  mov dword [BASE-4], LJ_TNIL
+  |  jmp ->fff_res1
+  |2:  // Set missing 2nd arg to nil.
+  |  mov dword [BASE+12], LJ_TNIL
+  |  jmp <1
+  |
+  |.ffunc_1 pairs
+  |  mov TAB:RB, [BASE]
+  |  cmp dword [BASE+4], LJ_TTAB;  jne ->fff_fallback
+#if LJ_52
+  |  cmp dword TAB:RB->metatable, 0; jne ->fff_fallback
+#endif
+  |  mov CFUNC:RB, [BASE-8]
+  |  mov CFUNC:RD, CFUNC:RB->upvalue[0]
+  |  mov PC, [BASE-4]
+  |  mov dword [BASE-4], LJ_TFUNC
+  |  mov [BASE-8], CFUNC:RD
+  |  mov dword [BASE+12], LJ_TNIL
+  |  mov RD, 1+3
+  |  jmp ->fff_res
+  |
+  |.ffunc_2 ipairs_aux
+  |  cmp dword [BASE+4], LJ_TTAB;  jne ->fff_fallback
+  |  cmp dword [BASE+12], LJ_TISNUM
+  |.if DUALNUM
+  |  jne ->fff_fallback
+  |.else
+  |  jae ->fff_fallback
+  |.endif
+  |  mov PC, [BASE-4]
+  |.if DUALNUM
+  |  mov RD, dword [BASE+8]
+  |  add RD, 1
+  |  mov dword [BASE-4], LJ_TISNUM
+  |  mov dword [BASE-8], RD
+  |.else
+  |  movsd xmm0, qword [BASE+8]
+  |  sseconst_1 xmm1, RBa
+  |  addsd xmm0, xmm1
+  |  cvttsd2si RD, xmm0
+  |  movsd qword [BASE-8], xmm0
+  |.endif
+  |  mov TAB:RB, [BASE]
+  |  cmp RD, TAB:RB->asize;  jae >2	// Not in array part?
+  |  shl RD, 3
+  |  add RD, TAB:RB->array
+  |1:
+  |  cmp dword [RD+4], LJ_TNIL;  je ->fff_res0
+  |  // Copy array slot.
+  |.if X64
+  |  mov RBa, [RD]
+  |  mov [BASE], RBa
+  |.else
+  |  mov RB, [RD]
+  |  mov RD, [RD+4]
+  |  mov [BASE], RB
+  |  mov [BASE+4], RD
+  |.endif
+  |->fff_res2:
+  |  mov RD, 1+2
+  |  jmp ->fff_res
+  |2:  // Check for empty hash part first. Otherwise call C function.
+  |  cmp dword TAB:RB->hmask, 0; je ->fff_res0
+  |  mov FCARG1, TAB:RB
+  |  mov RB, BASE			// Save BASE.
+  |  mov FCARG2, RD			// Caveat: FCARG2 == BASE
+  |  call extern lj_tab_getinth@8	// (GCtab *t, int32_t key)
+  |  // cTValue * or NULL returned in eax (RD).
+  |  mov BASE, RB
+  |  test RD, RD
+  |  jnz <1
+  |->fff_res0:
+  |  mov RD, 1+0
+  |  jmp ->fff_res
+  |
+  |.ffunc_1 ipairs
+  |  mov TAB:RB, [BASE]
+  |  cmp dword [BASE+4], LJ_TTAB;  jne ->fff_fallback
+#if LJ_52
+  |  cmp dword TAB:RB->metatable, 0; jne ->fff_fallback
+#endif
+  |  mov CFUNC:RB, [BASE-8]
+  |  mov CFUNC:RD, CFUNC:RB->upvalue[0]
+  |  mov PC, [BASE-4]
+  |  mov dword [BASE-4], LJ_TFUNC
+  |  mov [BASE-8], CFUNC:RD
+  |.if DUALNUM
+  |  mov dword [BASE+12], LJ_TISNUM
+  |  mov dword [BASE+8], 0
+  |.else
+  |  xorps xmm0, xmm0
+  |  movsd qword [BASE+8], xmm0
+  |.endif
+  |  mov RD, 1+3
+  |  jmp ->fff_res
+  |
+  |//-- Base library: catch errors ----------------------------------------
+  |
+  |.ffunc_1 pcall
+  |  lea RA, [BASE+8]
+  |  sub NARGS:RD, 1
+  |  mov PC, 8+FRAME_PCALL
+  |1:
+  |  movzx RB, byte [DISPATCH+DISPATCH_GL(hookmask)]
+  |  shr RB, HOOK_ACTIVE_SHIFT
+  |  and RB, 1
+  |  add PC, RB				// Remember active hook before pcall.
+  |  jmp ->vm_call_dispatch
+  |
+  |.ffunc_2 xpcall
+  |  cmp dword [BASE+12], LJ_TFUNC;  jne ->fff_fallback
+  |  mov RB, [BASE+4]			// Swap function and traceback.
+  |  mov [BASE+12], RB
+  |  mov dword [BASE+4], LJ_TFUNC
+  |  mov LFUNC:RB, [BASE]
+  |  mov PC, [BASE+8]
+  |  mov [BASE+8], LFUNC:RB
+  |  mov [BASE], PC
+  |  lea RA, [BASE+16]
+  |  sub NARGS:RD, 2
+  |  mov PC, 16+FRAME_PCALL
+  |  jmp <1
+  |
+  |//-- Coroutine library --------------------------------------------------
+  |
+  |.macro coroutine_resume_wrap, resume
+  |.if resume
+  |.ffunc_1 coroutine_resume
+  |  mov L:RB, [BASE]
+  |.else
+  |.ffunc coroutine_wrap_aux
+  |  mov CFUNC:RB, [BASE-8]
+  |  mov L:RB, CFUNC:RB->upvalue[0].gcr
+  |.endif
+  |  mov PC, [BASE-4]
+  |  mov SAVE_PC, PC
+  |.if X64
+  |  mov TMP1, L:RB
+  |.else
+  |  mov ARG1, L:RB
+  |.endif
+  |.if resume
+  |  cmp dword [BASE+4], LJ_TTHREAD;  jne ->fff_fallback
+  |.endif
+  |  cmp aword L:RB->cframe, 0; jne ->fff_fallback
+  |  cmp byte L:RB->status, LUA_YIELD;  ja ->fff_fallback
+  |  mov RA, L:RB->top
+  |  je >1				// Status != LUA_YIELD (i.e. 0)?
+  |  cmp RA, L:RB->base			// Check for presence of initial func.
+  |  je ->fff_fallback
+  |1:
+  |.if resume
+  |  lea PC, [RA+NARGS:RD*8-16]		// Check stack space (-1-thread).
+  |.else
+  |  lea PC, [RA+NARGS:RD*8-8]		// Check stack space (-1).
+  |.endif
+  |  cmp PC, L:RB->maxstack; ja ->fff_fallback
+  |  mov L:RB->top, PC
+  |
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |.if resume
+  |  add BASE, 8			// Keep resumed thread in stack for GC.
+  |.endif
+  |  mov L:RB->top, BASE
+  |.if resume
+  |  lea RB, [BASE+NARGS:RD*8-24]	// RB = end of source for stack move.
+  |.else
+  |  lea RB, [BASE+NARGS:RD*8-16]	// RB = end of source for stack move.
+  |.endif
+  |  sub RBa, PCa			// Relative to PC.
+  |
+  |  cmp PC, RA
+  |  je >3
+  |2:  // Move args to coroutine.
+  |.if X64
+  |  mov RCa, [PC+RB]
+  |  mov [PC-8], RCa
+  |.else
+  |  mov RC, [PC+RB+4]
+  |  mov [PC-4], RC
+  |  mov RC, [PC+RB]
+  |  mov [PC-8], RC
+  |.endif
+  |  sub PC, 8
+  |  cmp PC, RA
+  |  jne <2
+  |3:
+  |.if X64
+  |  mov CARG2d, RA
+  |  mov CARG1d, TMP1
+  |.else
+  |  mov ARG2, RA
+  |  xor RA, RA
+  |  mov ARG4, RA
+  |  mov ARG3, RA
+  |.endif
+  |  call ->vm_resume			// (lua_State *L, TValue *base, 0, 0)
+  |
+  |  mov L:RB, SAVE_L
+  |.if X64
+  |  mov L:PC, TMP1
+  |.else
+  |  mov L:PC, ARG1			// The callee doesn't modify SAVE_L.
+  |.endif
+  |  mov BASE, L:RB->base
+  |  mov [DISPATCH+DISPATCH_GL(cur_L)], L:RB
+  |  set_vmstate INTERP
+  |
+  |  cmp eax, LUA_YIELD
+  |  ja >8
+  |4:
+  |  mov RA, L:PC->base
+  |  mov KBASE, L:PC->top
+  |  mov L:PC->top, RA			// Clear coroutine stack.
+  |  mov PC, KBASE
+  |  sub PC, RA
+  |  je >6				// No results?
+  |  lea RD, [BASE+PC]
+  |  shr PC, 3
+  |  cmp RD, L:RB->maxstack
+  |  ja >9				// Need to grow stack?
+  |
+  |  mov RB, BASE
+  |  sub RBa, RAa
+  |5:  // Move results from coroutine.
+  |.if X64
+  |  mov RDa, [RA]
+  |  mov [RA+RB], RDa
+  |.else
+  |  mov RD, [RA]
+  |  mov [RA+RB], RD
+  |  mov RD, [RA+4]
+  |  mov [RA+RB+4], RD
+  |.endif
+  |  add RA, 8
+  |  cmp RA, KBASE
+  |  jne <5
+  |6:
+  |.if resume
+  |  lea RD, [PC+2]			// nresults+1 = 1 + true + results.
+  |  mov dword [BASE-4], LJ_TTRUE	// Prepend true to results.
+  |.else
+  |  lea RD, [PC+1]			// nresults+1 = 1 + results.
+  |.endif
+  |7:
+  |  mov PC, SAVE_PC
+  |  mov MULTRES, RD
+  |.if resume
+  |  mov RAa, -8
+  |.else
+  |  xor RA, RA
+  |.endif
+  |  test PC, FRAME_TYPE
+  |  jz ->BC_RET_Z
+  |  jmp ->vm_return
+  |
+  |8:  // Coroutine returned with error (at co->top-1).
+  |.if resume
+  |  mov dword [BASE-4], LJ_TFALSE	// Prepend false to results.
+  |  mov RA, L:PC->top
+  |  sub RA, 8
+  |  mov L:PC->top, RA			// Clear error from coroutine stack.
+  |  // Copy error message.
+  |.if X64
+  |  mov RDa, [RA]
+  |  mov [BASE], RDa
+  |.else
+  |  mov RD, [RA]
+  |  mov [BASE], RD
+  |  mov RD, [RA+4]
+  |  mov [BASE+4], RD
+  |.endif
+  |  mov RD, 1+2			// nresults+1 = 1 + false + error.
+  |  jmp <7
+  |.else
+  |  mov FCARG2, L:PC
+  |  mov FCARG1, L:RB
+  |  call extern lj_ffh_coroutine_wrap_err@8  // (lua_State *L, lua_State *co)
+  |  // Error function does not return.
+  |.endif
+  |
+  |9:  // Handle stack expansion on return from yield.
+  |.if X64
+  |  mov L:RA, TMP1
+  |.else
+  |  mov L:RA, ARG1			// The callee doesn't modify SAVE_L.
+  |.endif
+  |  mov L:RA->top, KBASE		// Undo coroutine stack clearing.
+  |  mov FCARG2, PC
+  |  mov FCARG1, L:RB
+  |  call extern lj_state_growstack@8	// (lua_State *L, int n)
+  |.if X64
+  |  mov L:PC, TMP1
+  |.else
+  |  mov L:PC, ARG1
+  |.endif
+  |  mov BASE, L:RB->base
+  |  jmp <4				// Retry the stack move.
+  |.endmacro
+  |
+  |  coroutine_resume_wrap 1		// coroutine.resume
+  |  coroutine_resume_wrap 0		// coroutine.wrap
+  |
+  |.ffunc coroutine_yield
+  |  mov L:RB, SAVE_L
+  |  test aword L:RB->cframe, CFRAME_RESUME
+  |  jz ->fff_fallback
+  |  mov L:RB->base, BASE
+  |  lea RD, [BASE+NARGS:RD*8-8]
+  |  mov L:RB->top, RD
+  |  xor RD, RD
+  |  mov aword L:RB->cframe, RDa
+  |  mov al, LUA_YIELD
+  |  mov byte L:RB->status, al
+  |  jmp ->vm_leave_unw
+  |
+  |//-- Math library -------------------------------------------------------
+  |
+  |.if not DUALNUM
+  |->fff_resi:  // Dummy.
+  |.endif
+  |
+  |->fff_resn:
+  |  mov PC, [BASE-4]
+  |  fstp qword [BASE-8]
+  |  jmp ->fff_res1
+  |
+  |  .ffunc_1 math_abs
+  |.if DUALNUM
+  |  cmp dword [BASE+4], LJ_TISNUM; jne >2
+  |  mov RB, dword [BASE]
+  |  cmp RB, 0; jns ->fff_resi
+  |  neg RB; js >1
+  |->fff_resbit:
+  |->fff_resi:
+  |  mov PC, [BASE-4]
+  |  mov dword [BASE-4], LJ_TISNUM
+  |  mov dword [BASE-8], RB
+  |  jmp ->fff_res1
+  |1:
+  |  mov PC, [BASE-4]
+  |  mov dword [BASE-4], 0x41e00000  // 2^31.
+  |  mov dword [BASE-8], 0
+  |  jmp ->fff_res1
+  |2:
+  |  ja ->fff_fallback
+  |.else
+  |  cmp dword [BASE+4], LJ_TISNUM; jae ->fff_fallback
+  |.endif
+  |  movsd xmm0, qword [BASE]
+  |  sseconst_abs xmm1, RDa
+  |  andps xmm0, xmm1
+  |->fff_resxmm0:
+  |  mov PC, [BASE-4]
+  |  movsd qword [BASE-8], xmm0
+  |  // fallthrough
+  |
+  |->fff_res1:
+  |  mov RD, 1+1
+  |->fff_res:
+  |  mov MULTRES, RD
+  |->fff_res_:
+  |  test PC, FRAME_TYPE
+  |  jnz >7
+  |5:
+  |  cmp PC_RB, RDL			// More results expected?
+  |  ja >6
+  |  // Adjust BASE. KBASE is assumed to be set for the calling frame.
+  |  movzx RA, PC_RA
+  |  not RAa				// Note: ~RA = -(RA+1)
+  |  lea BASE, [BASE+RA*8]		// base = base - (RA+1)*8
+  |  ins_next
+  |
+  |6:  // Fill up results with nil.
+  |  mov dword [BASE+RD*8-12], LJ_TNIL
+  |  add RD, 1
+  |  jmp <5
+  |
+  |7:  // Non-standard return case.
+  |  mov RAa, -8			// Results start at BASE+RA = BASE-8.
+  |  jmp ->vm_return
+  |
+  |.if X64
+  |.define fff_resfp, fff_resxmm0
+  |.else
+  |.define fff_resfp, fff_resn
+  |.endif
+  |
+  |.macro math_round, func
+  |  .ffunc math_ .. func
+  |.if DUALNUM
+  |  cmp dword [BASE+4], LJ_TISNUM; jne >1
+  |  mov RB, dword [BASE]; jmp ->fff_resi
+  |1:
+  |  ja ->fff_fallback
+  |.else
+  |  cmp dword [BASE+4], LJ_TISNUM; jae ->fff_fallback
+  |.endif
+  |  movsd xmm0, qword [BASE]
+  |  call ->vm_ .. func .. _sse
+  |.if DUALNUM
+  |  cvttsd2si RB, xmm0
+  |  cmp RB, 0x80000000
+  |  jne ->fff_resi
+  |  cvtsi2sd xmm1, RB
+  |  ucomisd xmm0, xmm1
+  |  jp ->fff_resxmm0
+  |  je ->fff_resi
+  |.endif
+  |  jmp ->fff_resxmm0
+  |.endmacro
+  |
+  |  math_round floor
+  |  math_round ceil
+  |
+  |.ffunc_nsse math_sqrt, sqrtsd; jmp ->fff_resxmm0
+  |
+  |.ffunc math_log
+  |  cmp NARGS:RD, 1+1; jne ->fff_fallback	// Exactly one argument.
+  |  cmp dword [BASE+4], LJ_TISNUM; jae ->fff_fallback
+  |  movsd xmm0, qword [BASE]
+  |.if not X64
+  |  movsd FPARG1, xmm0
+  |.endif
+  |  mov RB, BASE
+  |  call extern log
+  |  mov BASE, RB
+  |  jmp ->fff_resfp
+  |
+  |.macro math_extern, func
+  |  .ffunc_nsse math_ .. func
+  |.if not X64
+  |  movsd FPARG1, xmm0
+  |.endif
+  |  mov RB, BASE
+  |  call extern func
+  |  mov BASE, RB
+  |  jmp ->fff_resfp
+  |.endmacro
+  |
+  |.macro math_extern2, func
+  |  .ffunc_nnsse math_ .. func
+  |.if not X64
+  |  movsd FPARG1, xmm0
+  |  movsd FPARG3, xmm1
+  |.endif
+  |  mov RB, BASE
+  |  call extern func
+  |  mov BASE, RB
+  |  jmp ->fff_resfp
+  |.endmacro
+  |
+  |  math_extern log10
+  |  math_extern exp
+  |  math_extern sin
+  |  math_extern cos
+  |  math_extern tan
+  |  math_extern asin
+  |  math_extern acos
+  |  math_extern atan
+  |  math_extern sinh
+  |  math_extern cosh
+  |  math_extern tanh
+  |  math_extern2 pow
+  |  math_extern2 atan2
+  |  math_extern2 fmod
+  |
+  |.ffunc_nnr math_ldexp;	fscale; fpop1;	jmp ->fff_resn
+  |
+  |.ffunc_1 math_frexp
+  |  mov RB, [BASE+4]
+  |  cmp RB, LJ_TISNUM;  jae ->fff_fallback
+  |  mov PC, [BASE-4]
+  |  mov RC, [BASE]
+  |  mov [BASE-4], RB; mov [BASE-8], RC
+  |  shl RB, 1; cmp RB, 0xffe00000; jae >3
+  |  or RC, RB; jz >3
+  |  mov RC, 1022
+  |  cmp RB, 0x00200000; jb >4
+  |1:
+  |  shr RB, 21; sub RB, RC		// Extract and unbias exponent.
+  |  cvtsi2sd xmm0, RB
+  |  mov RB, [BASE-4]
+  |  and RB, 0x800fffff			// Mask off exponent.
+  |  or RB, 0x3fe00000			// Put mantissa in range [0.5,1) or 0.
+  |  mov [BASE-4], RB
+  |2:
+  |  movsd qword [BASE], xmm0
+  |  mov RD, 1+2
+  |  jmp ->fff_res
+  |3:  // Return +-0, +-Inf, NaN unmodified and an exponent of 0.
+  |  xorps xmm0, xmm0; jmp <2
+  |4:  // Handle denormals by multiplying with 2^54 and adjusting the bias.
+  |  movsd xmm0, qword [BASE]
+  |  sseconst_hi xmm1, RBa, 43500000  // 2^54.
+  |  mulsd xmm0, xmm1
+  |  movsd qword [BASE-8], xmm0
+  |  mov RB, [BASE-4]; mov RC, 1076; shl RB, 1; jmp <1
+  |
+  |.ffunc_nsse math_modf
+  |  mov RB, [BASE+4]
+  |  mov PC, [BASE-4]
+  |  shl RB, 1; cmp RB, 0xffe00000; je >4	// +-Inf?
+  |  movaps xmm4, xmm0
+  |  call ->vm_trunc_sse
+  |  subsd xmm4, xmm0
+  |1:
+  |  movsd qword [BASE-8], xmm0
+  |  movsd qword [BASE], xmm4
+  |  mov RC, [BASE-4]; mov RB, [BASE+4]
+  |  xor RC, RB; js >3				// Need to adjust sign?
+  |2:
+  |  mov RD, 1+2
+  |  jmp ->fff_res
+  |3:
+  |  xor RB, 0x80000000; mov [BASE+4], RB	// Flip sign of fraction.
+  |  jmp <2
+  |4:
+  |  xorps xmm4, xmm4; jmp <1			// Return +-Inf and +-0.
+  |
+  |.macro math_minmax, name, cmovop, sseop
+  |  .ffunc_1 name
+  |  mov RA, 2
+  |  cmp dword [BASE+4], LJ_TISNUM
+  |.if DUALNUM
+  |  jne >4
+  |  mov RB, dword [BASE]
+  |1:  // Handle integers.
+  |  cmp RA, RD; jae ->fff_resi
+  |  cmp dword [BASE+RA*8-4], LJ_TISNUM; jne >3
+  |  cmp RB, dword [BASE+RA*8-8]
+  |  cmovop RB, dword [BASE+RA*8-8]
+  |  add RA, 1
+  |  jmp <1
+  |3:
+  |  ja ->fff_fallback
+  |  // Convert intermediate result to number and continue below.
+  |  cvtsi2sd xmm0, RB
+  |  jmp >6
+  |4:
+  |  ja ->fff_fallback
+  |.else
+  |  jae ->fff_fallback
+  |.endif
+  |
+  |  movsd xmm0, qword [BASE]
+  |5:  // Handle numbers or integers.
+  |  cmp RA, RD; jae ->fff_resxmm0
+  |  cmp dword [BASE+RA*8-4], LJ_TISNUM
+  |.if DUALNUM
+  |  jb >6
+  |  ja ->fff_fallback
+  |  cvtsi2sd xmm1, dword [BASE+RA*8-8]
+  |  jmp >7
+  |.else
+  |  jae ->fff_fallback
+  |.endif
+  |6:
+  |  movsd xmm1, qword [BASE+RA*8-8]
+  |7:
+  |  sseop xmm0, xmm1
+  |  add RA, 1
+  |  jmp <5
+  |.endmacro
+  |
+  |  math_minmax math_min, cmovg, minsd
+  |  math_minmax math_max, cmovl, maxsd
+  |
+  |//-- String library -----------------------------------------------------
+  |
+  |.ffunc string_byte			// Only handle the 1-arg case here.
+  |  cmp NARGS:RD, 1+1;  jne ->fff_fallback
+  |  cmp dword [BASE+4], LJ_TSTR;  jne ->fff_fallback
+  |  mov STR:RB, [BASE]
+  |  mov PC, [BASE-4]
+  |  cmp dword STR:RB->len, 1
+  |  jb ->fff_res0			// Return no results for empty string.
+  |  movzx RB, byte STR:RB[1]
+  |.if DUALNUM
+  |  jmp ->fff_resi
+  |.else
+  |  cvtsi2sd xmm0, RB; jmp ->fff_resxmm0
+  |.endif
+  |
+  |.ffunc string_char			// Only handle the 1-arg case here.
+  |  ffgccheck
+  |  cmp NARGS:RD, 1+1;  jne ->fff_fallback	// *Exactly* 1 arg.
+  |  cmp dword [BASE+4], LJ_TISNUM
+  |.if DUALNUM
+  |  jne ->fff_fallback
+  |  mov RB, dword [BASE]
+  |  cmp RB, 255;  ja ->fff_fallback
+  |  mov TMP2, RB
+  |.else
+  |  jae ->fff_fallback
+  |  cvttsd2si RB, qword [BASE]
+  |  cmp RB, 255;  ja ->fff_fallback
+  |  mov TMP2, RB
+  |.endif
+  |.if X64
+  |  mov TMP3, 1
+  |.else
+  |  mov ARG3, 1
+  |.endif
+  |  lea RDa, TMP2			// Points to stack. Little-endian.
+  |->fff_newstr:
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |.if X64
+  |  mov CARG3d, TMP3			// Zero-extended to size_t.
+  |  mov CARG2, RDa			// May be 64 bit ptr to stack.
+  |  mov CARG1d, L:RB
+  |.else
+  |  mov ARG2, RD
+  |  mov ARG1, L:RB
+  |.endif
+  |  mov SAVE_PC, PC
+  |  call extern lj_str_new		// (lua_State *L, char *str, size_t l)
+  |->fff_resstr:
+  |  // GCstr * returned in eax (RD).
+  |  mov BASE, L:RB->base
+  |  mov PC, [BASE-4]
+  |  mov dword [BASE-4], LJ_TSTR
+  |  mov [BASE-8], STR:RD
+  |  jmp ->fff_res1
+  |
+  |.ffunc string_sub
+  |  ffgccheck
+  |  mov TMP2, -1
+  |  cmp NARGS:RD, 1+2;  jb ->fff_fallback
+  |  jna >1
+  |  cmp dword [BASE+20], LJ_TISNUM
+  |.if DUALNUM
+  |  jne ->fff_fallback
+  |  mov RB, dword [BASE+16]
+  |  mov TMP2, RB
+  |.else
+  |  jae ->fff_fallback
+  |  cvttsd2si RB, qword [BASE+16]
+  |  mov TMP2, RB
+  |.endif
+  |1:
+  |  cmp dword [BASE+4], LJ_TSTR;  jne ->fff_fallback
+  |  cmp dword [BASE+12], LJ_TISNUM
+  |.if DUALNUM
+  |  jne ->fff_fallback
+  |.else
+  |  jae ->fff_fallback
+  |.endif
+  |  mov STR:RB, [BASE]
+  |  mov TMP3, STR:RB
+  |  mov RB, STR:RB->len
+  |.if DUALNUM
+  |  mov RA, dword [BASE+8]
+  |.else
+  |  cvttsd2si RA, qword [BASE+8]
+  |.endif
+  |  mov RC, TMP2
+  |  cmp RB, RC				// len < end? (unsigned compare)
+  |  jb >5
+  |2:
+  |  test RA, RA			// start <= 0?
+  |  jle >7
+  |3:
+  |  mov STR:RB, TMP3
+  |  sub RC, RA				// start > end?
+  |  jl ->fff_emptystr
+  |  lea RB, [STR:RB+RA+#STR-1]
+  |  add RC, 1
+  |4:
+  |.if X64
+  |  mov TMP3, RC
+  |.else
+  |  mov ARG3, RC
+  |.endif
+  |  mov RD, RB
+  |  jmp ->fff_newstr
+  |
+  |5:  // Negative end or overflow.
+  |  jl >6
+  |  lea RC, [RC+RB+1]			// end = end+(len+1)
+  |  jmp <2
+  |6:  // Overflow.
+  |  mov RC, RB				// end = len
+  |  jmp <2
+  |
+  |7:  // Negative start or underflow.
+  |  je >8
+  |  add RA, RB				// start = start+(len+1)
+  |  add RA, 1
+  |  jg <3				// start > 0?
+  |8:  // Underflow.
+  |  mov RA, 1				// start = 1
+  |  jmp <3
+  |
+  |->fff_emptystr:  // Range underflow.
+  |  xor RC, RC				// Zero length. Any ptr in RB is ok.
+  |  jmp <4
+  |
+  |.macro ffstring_op, name
+  |  .ffunc_1 string_ .. name
+  |  ffgccheck
+  |  cmp dword [BASE+4], LJ_TSTR;  jne ->fff_fallback
+  |  mov L:RB, SAVE_L
+  |   lea SBUF:FCARG1, [DISPATCH+DISPATCH_GL(tmpbuf)]
+  |  mov L:RB->base, BASE
+  |  mov STR:FCARG2, [BASE]		// Caveat: FCARG2 == BASE
+  |   mov RCa, SBUF:FCARG1->b
+  |   mov SBUF:FCARG1->L, L:RB
+  |   mov SBUF:FCARG1->w, RCa
+  |  mov SAVE_PC, PC
+  |  call extern lj_buf_putstr_ .. name .. @8
+  |  mov FCARG1, eax
+  |  call extern lj_buf_tostr@4
+  |  jmp ->fff_resstr
+  |.endmacro
+  |
+  |ffstring_op reverse
+  |ffstring_op lower
+  |ffstring_op upper
+  |
+  |//-- Bit library --------------------------------------------------------
+  |
+  |.macro .ffunc_bit, name, kind, fdef
+  |  fdef name
+  |.if kind == 2
+  |  sseconst_tobit xmm1, RBa
+  |.endif
+  |  cmp dword [BASE+4], LJ_TISNUM
+  |.if DUALNUM
+  |  jne >1
+  |  mov RB, dword [BASE]
+  |.if kind > 0
+  |  jmp >2
+  |.else
+  |  jmp ->fff_resbit
+  |.endif
+  |1:
+  |  ja ->fff_fallback
+  |.else
+  |  jae ->fff_fallback
+  |.endif
+  |  movsd xmm0, qword [BASE]
+  |.if kind < 2
+  |  sseconst_tobit xmm1, RBa
+  |.endif
+  |  addsd xmm0, xmm1
+  |  movd RB, xmm0
+  |2:
+  |.endmacro
+  |
+  |.macro .ffunc_bit, name, kind
+  |  .ffunc_bit name, kind, .ffunc_1
+  |.endmacro
+  |
+  |.ffunc_bit bit_tobit, 0
+  |  jmp ->fff_resbit
+  |
+  |.macro .ffunc_bit_op, name, ins
+  |  .ffunc_bit name, 2
+  |  mov TMP2, NARGS:RD			// Save for fallback.
+  |  lea RD, [BASE+NARGS:RD*8-16]
+  |1:
+  |  cmp RD, BASE
+  |  jbe ->fff_resbit
+  |  cmp dword [RD+4], LJ_TISNUM
+  |.if DUALNUM
+  |  jne >2
+  |  ins RB, dword [RD]
+  |  sub RD, 8
+  |  jmp <1
+  |2:
+  |  ja ->fff_fallback_bit_op
+  |.else
+  |  jae ->fff_fallback_bit_op
+  |.endif
+  |  movsd xmm0, qword [RD]
+  |  addsd xmm0, xmm1
+  |  movd RA, xmm0
+  |  ins RB, RA
+  |  sub RD, 8
+  |  jmp <1
+  |.endmacro
+  |
+  |.ffunc_bit_op bit_band, and
+  |.ffunc_bit_op bit_bor, or
+  |.ffunc_bit_op bit_bxor, xor
+  |
+  |.ffunc_bit bit_bswap, 1
+  |  bswap RB
+  |  jmp ->fff_resbit
+  |
+  |.ffunc_bit bit_bnot, 1
+  |  not RB
+  |.if DUALNUM
+  |  jmp ->fff_resbit
+  |.else
+  |->fff_resbit:
+  |  cvtsi2sd xmm0, RB
+  |  jmp ->fff_resxmm0
+  |.endif
+  |
+  |->fff_fallback_bit_op:
+  |  mov NARGS:RD, TMP2			// Restore for fallback
+  |  jmp ->fff_fallback
+  |
+  |.macro .ffunc_bit_sh, name, ins
+  |.if DUALNUM
+  |  .ffunc_bit name, 1, .ffunc_2
+  |  // Note: no inline conversion from number for 2nd argument!
+  |  cmp dword [BASE+12], LJ_TISNUM; jne ->fff_fallback
+  |  mov RA, dword [BASE+8]
+  |.else
+  |  .ffunc_nnsse name
+  |  sseconst_tobit xmm2, RBa
+  |  addsd xmm0, xmm2
+  |  addsd xmm1, xmm2
+  |  movd RB, xmm0
+  |  movd RA, xmm1
+  |.endif
+  |  ins RB, cl				// Assumes RA is ecx.
+  |  jmp ->fff_resbit
+  |.endmacro
+  |
+  |.ffunc_bit_sh bit_lshift, shl
+  |.ffunc_bit_sh bit_rshift, shr
+  |.ffunc_bit_sh bit_arshift, sar
+  |.ffunc_bit_sh bit_rol, rol
+  |.ffunc_bit_sh bit_ror, ror
+  |
+  |//-----------------------------------------------------------------------
+  |
+  |->fff_fallback_2:
+  |  mov NARGS:RD, 1+2			// Other args are ignored, anyway.
+  |  jmp ->fff_fallback
+  |->fff_fallback_1:
+  |  mov NARGS:RD, 1+1			// Other args are ignored, anyway.
+  |->fff_fallback:			// Call fast function fallback handler.
+  |  // BASE = new base, RD = nargs+1
+  |  mov L:RB, SAVE_L
+  |  mov PC, [BASE-4]			// Fallback may overwrite PC.
+  |  mov SAVE_PC, PC			// Redundant (but a defined value).
+  |  mov L:RB->base, BASE
+  |  lea RD, [BASE+NARGS:RD*8-8]
+  |  lea RA, [RD+8*LUA_MINSTACK]	// Ensure enough space for handler.
+  |  mov L:RB->top, RD
+  |  mov CFUNC:RD, [BASE-8]
+  |  cmp RA, L:RB->maxstack
+  |  ja >5				// Need to grow stack.
+  |.if X64
+  |  mov CARG1d, L:RB
+  |.else
+  |  mov ARG1, L:RB
+  |.endif
+  |  call aword CFUNC:RD->f		// (lua_State *L)
+  |  mov BASE, L:RB->base
+  |  // Either throws an error, or recovers and returns -1, 0 or nresults+1.
+  |  test RD, RD;  jg ->fff_res		// Returned nresults+1?
+  |1:
+  |  mov RA, L:RB->top
+  |  sub RA, BASE
+  |  shr RA, 3
+  |  test RD, RD
+  |  lea NARGS:RD, [RA+1]
+  |  mov LFUNC:RB, [BASE-8]
+  |  jne ->vm_call_tail			// Returned -1?
+  |  ins_callt				// Returned 0: retry fast path.
+  |
+  |// Reconstruct previous base for vmeta_call during tailcall.
+  |->vm_call_tail:
+  |  mov RA, BASE
+  |  test PC, FRAME_TYPE
+  |  jnz >3
+  |  movzx RB, PC_RA
+  |  not RBa				// Note: ~RB = -(RB+1)
+  |  lea BASE, [BASE+RB*8]		// base = base - (RB+1)*8
+  |  jmp ->vm_call_dispatch		// Resolve again for tailcall.
+  |3:
+  |  mov RB, PC
+  |  and RB, -8
+  |  sub BASE, RB
+  |  jmp ->vm_call_dispatch		// Resolve again for tailcall.
+  |
+  |5:  // Grow stack for fallback handler.
+  |  mov FCARG2, LUA_MINSTACK
+  |  mov FCARG1, L:RB
+  |  call extern lj_state_growstack@8	// (lua_State *L, int n)
+  |  mov BASE, L:RB->base
+  |  xor RD, RD				// Simulate a return 0.
+  |  jmp <1				// Dumb retry (goes through ff first).
+  |
+  |->fff_gcstep:			// Call GC step function.
+  |  // BASE = new base, RD = nargs+1
+  |  pop RBa				// Must keep stack at same level.
+  |  mov TMPa, RBa			// Save return address
+  |  mov L:RB, SAVE_L
+  |  mov SAVE_PC, PC			// Redundant (but a defined value).
+  |  mov L:RB->base, BASE
+  |  lea RD, [BASE+NARGS:RD*8-8]
+  |  mov FCARG1, L:RB
+  |  mov L:RB->top, RD
+  |  call extern lj_gc_step@4		// (lua_State *L)
+  |  mov BASE, L:RB->base
+  |  mov RD, L:RB->top
+  |  sub RD, BASE
+  |  shr RD, 3
+  |  add NARGS:RD, 1
+  |  mov RBa, TMPa
+  |  push RBa				// Restore return address.
+  |  ret
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Special dispatch targets -------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->vm_record:				// Dispatch target for recording phase.
+  |.if JIT
+  |  movzx RD, byte [DISPATCH+DISPATCH_GL(hookmask)]
+  |  test RDL, HOOK_VMEVENT		// No recording while in vmevent.
+  |  jnz >5
+  |  // Decrement the hookcount for consistency, but always do the call.
+  |  test RDL, HOOK_ACTIVE
+  |  jnz >1
+  |  test RDL, LUA_MASKLINE|LUA_MASKCOUNT
+  |  jz >1
+  |  dec dword [DISPATCH+DISPATCH_GL(hookcount)]
+  |  jmp >1
+  |.endif
+  |
+  |->vm_rethook:			// Dispatch target for return hooks.
+  |  movzx RD, byte [DISPATCH+DISPATCH_GL(hookmask)]
+  |  test RDL, HOOK_ACTIVE		// Hook already active?
+  |  jnz >5
+  |  jmp >1
+  |
+  |->vm_inshook:			// Dispatch target for instr/line hooks.
+  |  movzx RD, byte [DISPATCH+DISPATCH_GL(hookmask)]
+  |  test RDL, HOOK_ACTIVE		// Hook already active?
+  |  jnz >5
+  |
+  |  test RDL, LUA_MASKLINE|LUA_MASKCOUNT
+  |  jz >5
+  |  dec dword [DISPATCH+DISPATCH_GL(hookcount)]
+  |  jz >1
+  |  test RDL, LUA_MASKLINE
+  |  jz >5
+  |1:
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov FCARG2, PC			// Caveat: FCARG2 == BASE
+  |  mov FCARG1, L:RB
+  |  // SAVE_PC must hold the _previous_ PC. The callee updates it with PC.
+  |  call extern lj_dispatch_ins@8	// (lua_State *L, const BCIns *pc)
+  |3:
+  |  mov BASE, L:RB->base
+  |4:
+  |  movzx RA, PC_RA
+  |5:
+  |  movzx OP, PC_OP
+  |  movzx RD, PC_RD
+  |.if X64
+  |  jmp aword [DISPATCH+OP*8+GG_DISP2STATIC]	// Re-dispatch to static ins.
+  |.else
+  |  jmp aword [DISPATCH+OP*4+GG_DISP2STATIC]	// Re-dispatch to static ins.
+  |.endif
+  |
+  |->cont_hook:				// Continue from hook yield.
+  |  add PC, 4
+  |  mov RA, [RB-24]
+  |  mov MULTRES, RA			// Restore MULTRES for *M ins.
+  |  jmp <4
+  |
+  |->vm_hotloop:			// Hot loop counter underflow.
+  |.if JIT
+  |  mov LFUNC:RB, [BASE-8]		// Same as curr_topL(L).
+  |  mov RB, LFUNC:RB->pc
+  |  movzx RD, byte [RB+PC2PROTO(framesize)]
+  |  lea RD, [BASE+RD*8]
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov L:RB->top, RD
+  |  mov FCARG2, PC
+  |  lea FCARG1, [DISPATCH+GG_DISP2J]
+  |  mov aword [DISPATCH+DISPATCH_J(L)], L:RBa
+  |  mov SAVE_PC, PC
+  |  call extern lj_trace_hot@8		// (jit_State *J, const BCIns *pc)
+  |  jmp <3
+  |.endif
+  |
+  |->vm_callhook:			// Dispatch target for call hooks.
+  |  mov SAVE_PC, PC
+  |.if JIT
+  |  jmp >1
+  |.endif
+  |
+  |->vm_hotcall:			// Hot call counter underflow.
+  |.if JIT
+  |  mov SAVE_PC, PC
+  |  or PC, 1				// Marker for hot call.
+  |1:
+  |.endif
+  |  lea RD, [BASE+NARGS:RD*8-8]
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov L:RB->top, RD
+  |  mov FCARG2, PC
+  |  mov FCARG1, L:RB
+  |  call extern lj_dispatch_call@8	// (lua_State *L, const BCIns *pc)
+  |  // ASMFunction returned in eax/rax (RDa).
+  |  mov SAVE_PC, 0			// Invalidate for subsequent line hook.
+  |.if JIT
+  |  and PC, -2
+  |.endif
+  |  mov BASE, L:RB->base
+  |  mov RAa, RDa
+  |  mov RD, L:RB->top
+  |  sub RD, BASE
+  |  mov RBa, RAa
+  |  movzx RA, PC_RA
+  |  shr RD, 3
+  |  add NARGS:RD, 1
+  |  jmp RBa
+  |
+  |->cont_stitch:			// Trace stitching.
+  |.if JIT
+  |  // BASE = base, RC = result, RB = mbase
+  |  mov TRACE:RA, [RB-24]		// Save previous trace.
+  |  mov TMP1, TRACE:RA
+  |  mov TMP3, DISPATCH			// Need one more register.
+  |  mov DISPATCH, MULTRES
+  |  movzx RA, PC_RA
+  |  lea RA, [BASE+RA*8]		// Call base.
+  |  sub DISPATCH, 1
+  |  jz >2
+  |1:  // Move results down.
+  |.if X64
+  |  mov RBa, [RC]
+  |  mov [RA], RBa
+  |.else
+  |  mov RB, [RC]
+  |  mov [RA], RB
+  |  mov RB, [RC+4]
+  |  mov [RA+4], RB
+  |.endif
+  |  add RC, 8
+  |  add RA, 8
+  |  sub DISPATCH, 1
+  |  jnz <1
+  |2:
+  |  movzx RC, PC_RA
+  |  movzx RB, PC_RB
+  |  add RC, RB
+  |  lea RC, [BASE+RC*8-8]
+  |3:
+  |  cmp RC, RA
+  |  ja >9				// More results wanted?
+  |
+  |  mov DISPATCH, TMP3
+  |  mov TRACE:RD, TMP1			// Get previous trace.
+  |  movzx RB, word TRACE:RD->traceno
+  |  movzx RD, word TRACE:RD->link
+  |  cmp RD, RB
+  |  je ->cont_nop			// Blacklisted.
+  |  test RD, RD
+  |  jne =>BC_JLOOP			// Jump to stitched trace.
+  |
+  |  // Stitch a new trace to the previous trace.
+  |  mov [DISPATCH+DISPATCH_J(exitno)], RB
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov FCARG2, PC
+  |  lea FCARG1, [DISPATCH+GG_DISP2J]
+  |  mov aword [DISPATCH+DISPATCH_J(L)], L:RBa
+  |  call extern lj_dispatch_stitch@8	// (jit_State *J, const BCIns *pc)
+  |  mov BASE, L:RB->base
+  |  jmp ->cont_nop
+  |
+  |9:  // Fill up results with nil.
+  |  mov dword [RA+4], LJ_TNIL
+  |  add RA, 8
+  |  jmp <3
+  |.endif
+  |
+  |->vm_profhook:			// Dispatch target for profiler hook.
+#if LJ_HASPROFILE
+  |  mov L:RB, SAVE_L
+  |  mov L:RB->base, BASE
+  |  mov FCARG2, PC			// Caveat: FCARG2 == BASE
+  |  mov FCARG1, L:RB
+  |  call extern lj_dispatch_profile@8	// (lua_State *L, const BCIns *pc)
+  |  mov BASE, L:RB->base
+  |  // HOOK_PROFILE is off again, so re-dispatch to dynamic instruction.
+  |  sub PC, 4
+  |  jmp ->cont_nop
+#endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Trace exit handler -------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Called from an exit stub with the exit number on the stack.
+  |// The 16 bit exit number is stored with two (sign-extended) push imm8.
+  |->vm_exit_handler:
+  |.if JIT
+  |.if X64
+  |  push r13; push r12
+  |  push r11; push r10; push r9; push r8
+  |  push rdi; push rsi; push rbp; lea rbp, [rsp+88]; push rbp
+  |  push rbx; push rdx; push rcx; push rax
+  |  movzx RC, byte [rbp-8]		// Reconstruct exit number.
+  |  mov RCH, byte [rbp-16]
+  |  mov [rbp-8], r15; mov [rbp-16], r14
+  |.else
+  |  push ebp; lea ebp, [esp+12]; push ebp
+  |  push ebx; push edx; push ecx; push eax
+  |  movzx RC, byte [ebp-4]		// Reconstruct exit number.
+  |  mov RCH, byte [ebp-8]
+  |  mov [ebp-4], edi; mov [ebp-8], esi
+  |.endif
+  |  // Caveat: DISPATCH is ebx.
+  |  mov DISPATCH, [ebp]
+  |  mov RA, [DISPATCH+DISPATCH_GL(vmstate)]	// Get trace number.
+  |  set_vmstate EXIT
+  |  mov [DISPATCH+DISPATCH_J(exitno)], RC
+  |  mov [DISPATCH+DISPATCH_J(parent)], RA
+  |.if X64
+  |.if X64WIN
+  |  sub rsp, 16*8+4*8			// Room for SSE regs + save area.
+  |.else
+  |  sub rsp, 16*8			// Room for SSE regs.
+  |.endif
+  |  add rbp, -128
+  |  movsd qword [rbp-8],   xmm15; movsd qword [rbp-16],  xmm14
+  |  movsd qword [rbp-24],  xmm13; movsd qword [rbp-32],  xmm12
+  |  movsd qword [rbp-40],  xmm11; movsd qword [rbp-48],  xmm10
+  |  movsd qword [rbp-56],  xmm9;  movsd qword [rbp-64],  xmm8
+  |  movsd qword [rbp-72],  xmm7;  movsd qword [rbp-80],  xmm6
+  |  movsd qword [rbp-88],  xmm5;  movsd qword [rbp-96],  xmm4
+  |  movsd qword [rbp-104], xmm3;  movsd qword [rbp-112], xmm2
+  |  movsd qword [rbp-120], xmm1;  movsd qword [rbp-128], xmm0
+  |.else
+  |  sub esp, 8*8+16			// Room for SSE regs + args.
+  |  movsd qword [ebp-40], xmm7; movsd qword [ebp-48], xmm6
+  |  movsd qword [ebp-56], xmm5; movsd qword [ebp-64], xmm4
+  |  movsd qword [ebp-72], xmm3; movsd qword [ebp-80], xmm2
+  |  movsd qword [ebp-88], xmm1; movsd qword [ebp-96], xmm0
+  |.endif
+  |  // Caveat: RB is ebp.
+  |  mov L:RB, [DISPATCH+DISPATCH_GL(cur_L)]
+  |  mov BASE, [DISPATCH+DISPATCH_GL(jit_base)]
+  |  mov aword [DISPATCH+DISPATCH_J(L)], L:RBa
+  |  mov L:RB->base, BASE
+  |.if X64WIN
+  |  lea CARG2, [rsp+4*8]
+  |.elif X64
+  |  mov CARG2, rsp
+  |.else
+  |  lea FCARG2, [esp+16]
+  |.endif
+  |  lea FCARG1, [DISPATCH+GG_DISP2J]
+  |  mov dword [DISPATCH+DISPATCH_GL(jit_base)], 0
+  |  call extern lj_trace_exit@8	// (jit_State *J, ExitState *ex)
+  |  // MULTRES or negated error code returned in eax (RD).
+  |  mov RAa, L:RB->cframe
+  |  and RAa, CFRAME_RAWMASK
+  |.if X64WIN
+  |  // Reposition stack later.
+  |.elif X64
+  |  mov rsp, RAa			// Reposition stack to C frame.
+  |.else
+  |  mov esp, RAa			// Reposition stack to C frame.
+  |.endif
+  |  mov [RAa+CFRAME_OFS_L], L:RB	// Set SAVE_L (on-trace resume/yield).
+  |  mov BASE, L:RB->base
+  |  mov PC, [RAa+CFRAME_OFS_PC]	// Get SAVE_PC.
+  |.if X64
+  |  jmp >1
+  |.endif
+  |.endif
+  |->vm_exit_interp:
+  |  // RD = MULTRES or negated error code, BASE, PC and DISPATCH set.
+  |.if JIT
+  |.if X64
+  |  // Restore additional callee-save registers only used in compiled code.
+  |.if X64WIN
+  |  lea RAa, [rsp+9*16+4*8]
+  |1:
+  |  movdqa xmm15, [RAa-9*16]
+  |  movdqa xmm14, [RAa-8*16]
+  |  movdqa xmm13, [RAa-7*16]
+  |  movdqa xmm12, [RAa-6*16]
+  |  movdqa xmm11, [RAa-5*16]
+  |  movdqa xmm10, [RAa-4*16]
+  |  movdqa xmm9, [RAa-3*16]
+  |  movdqa xmm8, [RAa-2*16]
+  |  movdqa xmm7, [RAa-1*16]
+  |  mov rsp, RAa			// Reposition stack to C frame.
+  |  movdqa xmm6, [RAa]
+  |  mov r15, CSAVE_3
+  |  mov r14, CSAVE_4
+  |.else
+  |  add rsp, 16			// Reposition stack to C frame.
+  |1:
+  |.endif
+  |  mov r13, TMPa
+  |  mov r12, TMPQ
+  |.endif
+  |  test RD, RD; js >9			// Check for error from exit.
+  |  mov L:RB, SAVE_L
+  |  mov MULTRES, RD
+  |  mov LFUNC:KBASE, [BASE-8]
+  |  mov KBASE, LFUNC:KBASE->pc
+  |  mov KBASE, [KBASE+PC2PROTO(k)]
+  |  mov L:RB->base, BASE
+  |  mov dword [DISPATCH+DISPATCH_GL(jit_base)], 0
+  |  set_vmstate INTERP
+  |  // Modified copy of ins_next which handles function header dispatch, too.
+  |  mov RC, [PC]
+  |  movzx RA, RCH
+  |  movzx OP, RCL
+  |  add PC, 4
+  |  shr RC, 16
+  |  cmp OP, BC_FUNCF			// Function header?
+  |  jb >3
+  |  cmp OP, BC_FUNCC+2			// Fast function?
+  |  jae >4
+  |2:
+  |  mov RC, MULTRES			// RC/RD holds nres+1.
+  |3:
+  |.if X64
+  |  jmp aword [DISPATCH+OP*8]
+  |.else
+  |  jmp aword [DISPATCH+OP*4]
+  |.endif
+  |
+  |4:  // Check frame below fast function.
+  |  mov RC, [BASE-4]
+  |  test RC, FRAME_TYPE
+  |  jnz <2				// Trace stitching continuation?
+  |  // Otherwise set KBASE for Lua function below fast function.
+  |  movzx RC, byte [RC-3]
+  |  not RCa
+  |  mov LFUNC:KBASE, [BASE+RC*8-8]
+  |  mov KBASE, LFUNC:KBASE->pc
+  |  mov KBASE, [KBASE+PC2PROTO(k)]
+  |  jmp <2
+  |
+  |9:  // Rethrow error from the right C frame.
+  |  mov FCARG2, RD
+  |  mov FCARG1, L:RB
+  |  neg FCARG2
+  |  call extern lj_err_trace@8		// (lua_State *L, int errcode)
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Math helper functions ----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// FP value rounding. Called by math.floor/math.ceil fast functions
+  |// and from JIT code. arg/ret is xmm0. xmm0-xmm3 and RD (eax) modified.
+  |.macro vm_round, name, mode, cond
+  |->name:
+  |.if not X64 and cond
+  |  movsd xmm0, qword [esp+4]
+  |  call ->name .. _sse
+  |  movsd qword [esp+4], xmm0  // Overwrite callee-owned arg.
+  |  fld qword [esp+4]
+  |  ret
+  |.endif
+  |
+  |->name .. _sse:
+  |  sseconst_abs xmm2, RDa
+  |  sseconst_2p52 xmm3, RDa
+  |  movaps xmm1, xmm0
+  |  andpd xmm1, xmm2			// |x|
+  |  ucomisd xmm3, xmm1			// No truncation if 2^52 <= |x|.
+  |  jbe >1
+  |  andnpd xmm2, xmm0			// Isolate sign bit.
+  |.if mode == 2		// trunc(x)?
+  |  movaps xmm0, xmm1
+  |  addsd xmm1, xmm3			// (|x| + 2^52) - 2^52
+  |  subsd xmm1, xmm3
+  |  sseconst_1 xmm3, RDa
+  |  cmpsd xmm0, xmm1, 1		// |x| < result?
+  |  andpd xmm0, xmm3
+  |  subsd xmm1, xmm0			// If yes, subtract -1.
+  |  orpd xmm1, xmm2			// Merge sign bit back in.
+  |.else
+  |  addsd xmm1, xmm3			// (|x| + 2^52) - 2^52
+  |  subsd xmm1, xmm3
+  |  orpd xmm1, xmm2			// Merge sign bit back in.
+  |  sseconst_1 xmm3, RDa
+  |  .if mode == 1		// ceil(x)?
+  |    cmpsd xmm0, xmm1, 6		// x > result?
+  |    andpd xmm0, xmm3
+  |    addsd xmm1, xmm0			// If yes, add 1.
+  |    orpd xmm1, xmm2			// Merge sign bit back in (again).
+  |  .else			// floor(x)?
+  |    cmpsd xmm0, xmm1, 1		// x < result?
+  |    andpd xmm0, xmm3
+  |    subsd xmm1, xmm0			// If yes, subtract 1.
+  |  .endif
+  |.endif
+  |  movaps xmm0, xmm1
+  |1:
+  |  ret
+  |.endmacro
+  |
+  |  vm_round vm_floor, 0, 1
+  |  vm_round vm_ceil,  1, JIT
+  |  vm_round vm_trunc, 2, JIT
+  |
+  |// FP modulo x%y. Called by BC_MOD* and vm_arith.
+  |->vm_mod:
+  |// Args in xmm0/xmm1, return value in xmm0.
+  |// Caveat: xmm0-xmm5 and RC (eax) modified!
+  |  movaps xmm5, xmm0
+  |  divsd xmm0, xmm1
+  |  sseconst_abs xmm2, RDa
+  |  sseconst_2p52 xmm3, RDa
+  |  movaps xmm4, xmm0
+  |  andpd xmm4, xmm2			// |x/y|
+  |  ucomisd xmm3, xmm4			// No truncation if 2^52 <= |x/y|.
+  |  jbe >1
+  |  andnpd xmm2, xmm0			// Isolate sign bit.
+  |  addsd xmm4, xmm3			// (|x/y| + 2^52) - 2^52
+  |  subsd xmm4, xmm3
+  |  orpd xmm4, xmm2			// Merge sign bit back in.
+  |  sseconst_1 xmm2, RDa
+  |  cmpsd xmm0, xmm4, 1		// x/y < result?
+  |  andpd xmm0, xmm2
+  |  subsd xmm4, xmm0			// If yes, subtract 1.0.
+  |  movaps xmm0, xmm5
+  |  mulsd xmm1, xmm4
+  |  subsd xmm0, xmm1
+  |  ret
+  |1:
+  |  mulsd xmm1, xmm0
+  |  movaps xmm0, xmm5
+  |  subsd xmm0, xmm1
+  |  ret
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Miscellaneous functions --------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// int lj_vm_cpuid(uint32_t f, uint32_t res[4])
+  |->vm_cpuid:
+  |.if X64
+  |  mov eax, CARG1d
+  |  .if X64WIN; push rsi; mov rsi, CARG2; .endif
+  |  push rbx
+  |  xor ecx, ecx
+  |  cpuid
+  |  mov [rsi], eax
+  |  mov [rsi+4], ebx
+  |  mov [rsi+8], ecx
+  |  mov [rsi+12], edx
+  |  pop rbx
+  |  .if X64WIN; pop rsi; .endif
+  |  ret
+  |.else
+  |  pushfd
+  |  pop edx
+  |  mov ecx, edx
+  |  xor edx, 0x00200000		// Toggle ID bit in flags.
+  |  push edx
+  |  popfd
+  |  pushfd
+  |  pop edx
+  |  xor eax, eax			// Zero means no features supported.
+  |  cmp ecx, edx
+  |  jz >1				// No ID toggle means no CPUID support.
+  |  mov eax, [esp+4]			// Argument 1 is function number.
+  |  push edi
+  |  push ebx
+  |  xor ecx, ecx
+  |  cpuid
+  |  mov edi, [esp+16]			// Argument 2 is result area.
+  |  mov [edi], eax
+  |  mov [edi+4], ebx
+  |  mov [edi+8], ecx
+  |  mov [edi+12], edx
+  |  pop ebx
+  |  pop edi
+  |1:
+  |  ret
+  |.endif
+  |
+  |.define NEXT_TAB,		TAB:FCARG1
+  |.define NEXT_IDX,		FCARG2
+  |.define NEXT_PTR,		RCa
+  |.define NEXT_PTRd,		RC
+  |.macro NEXT_RES_IDXL, op2;	lea edx, [NEXT_IDX+op2]; .endmacro
+  |.if X64
+  |.define NEXT_TMP,		CARG3d
+  |.define NEXT_TMPq,		CARG3
+  |.define NEXT_ASIZE,		CARG4d
+  |.macro NEXT_ENTER;		.endmacro
+  |.macro NEXT_LEAVE;		ret; .endmacro
+  |.if X64WIN
+  |.define NEXT_RES_PTR,	[rsp+aword*5]
+  |.macro NEXT_RES_IDX, op2;	add NEXT_IDX, op2; .endmacro
+  |.else
+  |.define NEXT_RES_PTR,	[rsp+aword*1]
+  |.macro NEXT_RES_IDX, op2;	lea edx, [NEXT_IDX+op2]; .endmacro
+  |.endif
+  |.else
+  |.define NEXT_ASIZE,		esi
+  |.define NEXT_TMP,		edi
+  |.macro NEXT_ENTER;		push esi; push edi; .endmacro
+  |.macro NEXT_LEAVE;		pop edi; pop esi; ret; .endmacro
+  |.define NEXT_RES_PTR,	[esp+dword*3]
+  |.macro NEXT_RES_IDX, op2;	add NEXT_IDX, op2; .endmacro
+  |.endif
+  |
+  |// TValue *lj_vm_next(GCtab *t, uint32_t idx)
+  |// Next idx returned in edx.
+  |->vm_next:
+  |.if JIT
+  |  NEXT_ENTER
+  |  mov NEXT_ASIZE, NEXT_TAB->asize
+  |1:  // Traverse array part.
+  |  cmp NEXT_IDX, NEXT_ASIZE;  jae >5
+  |  mov NEXT_TMP, NEXT_TAB->array
+  |  cmp dword [NEXT_TMP+NEXT_IDX*8+4], LJ_TNIL;  je >2
+  |  lea NEXT_PTR, NEXT_RES_PTR
+  |.if X64
+  |  mov NEXT_TMPq, qword [NEXT_TMP+NEXT_IDX*8]
+  |  mov qword [NEXT_PTR], NEXT_TMPq
+  |.else
+  |  mov NEXT_ASIZE, dword [NEXT_TMP+NEXT_IDX*8+4]
+  |  mov NEXT_TMP, dword [NEXT_TMP+NEXT_IDX*8]
+  |  mov dword [NEXT_PTR+4], NEXT_ASIZE
+  |  mov dword [NEXT_PTR], NEXT_TMP
+  |.endif
+  |.if DUALNUM
+  |  mov dword [NEXT_PTR+dword*3], LJ_TISNUM
+  |  mov dword [NEXT_PTR+dword*2], NEXT_IDX
+  |.else
+  |  cvtsi2sd xmm0, NEXT_IDX
+  |  movsd qword [NEXT_PTR+dword*2], xmm0
+  |.endif
+  |  NEXT_RES_IDX 1
+  |  NEXT_LEAVE
+  |2:  // Skip holes in array part.
+  |  add NEXT_IDX, 1
+  |  jmp <1
+  |
+  |5:  // Traverse hash part.
+  |  sub NEXT_IDX, NEXT_ASIZE
+  |6:
+  |  cmp NEXT_IDX, NEXT_TAB->hmask; ja >9
+  |  imul NEXT_PTRd, NEXT_IDX, #NODE
+  |  add NODE:NEXT_PTRd, dword NEXT_TAB->node
+  |  cmp dword NODE:NEXT_PTR->val.it, LJ_TNIL; je >7
+  |  NEXT_RES_IDXL NEXT_ASIZE+1
+  |  NEXT_LEAVE
+  |7:  // Skip holes in hash part.
+  |  add NEXT_IDX, 1
+  |  jmp <6
+  |
+  |9:  // End of iteration. Set the key to nil (not the value).
+  |  NEXT_RES_IDX NEXT_ASIZE
+  |  lea NEXT_PTR, NEXT_RES_PTR
+  |  mov dword [NEXT_PTR+dword*3], LJ_TNIL
+  |  NEXT_LEAVE
+  |.endif
+  |
+  |//-----------------------------------------------------------------------
+  |//-- Assertions ---------------------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |->assert_bad_for_arg_type:
+#ifdef LUA_USE_ASSERT
+  |  int3
+#endif
+  |  int3
+  |
+  |//-----------------------------------------------------------------------
+  |//-- FFI helper functions -----------------------------------------------
+  |//-----------------------------------------------------------------------
+  |
+  |// Handler for callback functions. Callback slot number in ah/al.
+  |->vm_ffi_callback:
+  |.if FFI
+  |.type CTSTATE, CTState, PC
+  |.if not X64
+  |  sub esp, 16			// Leave room for SAVE_ERRF etc.
+  |.endif
+  |  saveregs_	// ebp/rbp already saved. ebp now holds global_State *.
+  |  lea DISPATCH, [ebp+GG_G2DISP]
+  |  mov CTSTATE, GL:ebp->ctype_state
+  |  movzx eax, ax
+  |  mov CTSTATE->cb.slot, eax
+  |.if X64
+  |  mov CTSTATE->cb.gpr[0], CARG1
+  |  mov CTSTATE->cb.gpr[1], CARG2
+  |  mov CTSTATE->cb.gpr[2], CARG3
+  |  mov CTSTATE->cb.gpr[3], CARG4
+  |  movsd qword CTSTATE->cb.fpr[0], xmm0
+  |  movsd qword CTSTATE->cb.fpr[1], xmm1
+  |  movsd qword CTSTATE->cb.fpr[2], xmm2
+  |  movsd qword CTSTATE->cb.fpr[3], xmm3
+  |.if X64WIN
+  |  lea rax, [rsp+CFRAME_SIZE+4*8]
+  |.else
+  |  lea rax, [rsp+CFRAME_SIZE]
+  |  mov CTSTATE->cb.gpr[4], CARG5
+  |  mov CTSTATE->cb.gpr[5], CARG6
+  |  movsd qword CTSTATE->cb.fpr[4], xmm4
+  |  movsd qword CTSTATE->cb.fpr[5], xmm5
+  |  movsd qword CTSTATE->cb.fpr[6], xmm6
+  |  movsd qword CTSTATE->cb.fpr[7], xmm7
+  |.endif
+  |  mov CTSTATE->cb.stack, rax
+  |  mov CARG2, rsp
+  |.else
+  |  lea eax, [esp+CFRAME_SIZE+16]
+  |  mov CTSTATE->cb.gpr[0], FCARG1
+  |  mov CTSTATE->cb.gpr[1], FCARG2
+  |  mov CTSTATE->cb.stack, eax
+  |  mov FCARG1, [esp+CFRAME_SIZE+12]	// Move around misplaced retaddr/ebp.
+  |  mov FCARG2, [esp+CFRAME_SIZE+8]
+  |  mov SAVE_RET, FCARG1
+  |  mov SAVE_R4, FCARG2
+  |  mov FCARG2, esp
+  |.endif
+  |  mov SAVE_PC, CTSTATE		// Any value outside of bytecode is ok.
+  |  mov FCARG1, CTSTATE
+  |  call extern lj_ccallback_enter@8	// (CTState *cts, void *cf)
+  |  // lua_State * returned in eax (RD).
+  |  set_vmstate INTERP
+  |  mov BASE, L:RD->base
+  |  mov RD, L:RD->top
+  |  sub RD, BASE
+  |  mov LFUNC:RB, [BASE-8]
+  |  shr RD, 3
+  |  add RD, 1
+  |  ins_callt
+  |.endif
+  |
+  |->cont_ffi_callback:			// Return from FFI callback.
+  |.if FFI
+  |  mov L:RA, SAVE_L
+  |  mov CTSTATE, [DISPATCH+DISPATCH_GL(ctype_state)]
+  |  mov aword CTSTATE->L, L:RAa
+  |  mov L:RA->base, BASE
+  |  mov L:RA->top, RB
+  |  mov FCARG1, CTSTATE
+  |  mov FCARG2, RC
+  |  call extern lj_ccallback_leave@8	// (CTState *cts, TValue *o)
+  |.if X64
+  |  mov rax, CTSTATE->cb.gpr[0]
+  |  movsd xmm0, qword CTSTATE->cb.fpr[0]
+  |  jmp ->vm_leave_unw
+  |.else
+  |  mov L:RB, SAVE_L
+  |  mov eax, CTSTATE->cb.gpr[0]
+  |  mov edx, CTSTATE->cb.gpr[1]
+  |  cmp dword CTSTATE->cb.gpr[2], 1
+  |  jb >7
+  |  je >6
+  |  fld qword CTSTATE->cb.fpr[0].d
+  |  jmp >7
+  |6:
+  |  fld dword CTSTATE->cb.fpr[0].f
+  |7:
+  |  mov ecx, L:RB->top
+  |  movzx ecx, word [ecx+6]		// Get stack adjustment and copy up.
+  |  mov SAVE_L, ecx			// Must be one slot above SAVE_RET
+  |  restoreregs
+  |  pop ecx				// Move return addr from SAVE_RET.
+  |  add esp, [esp]			// Adjust stack.
+  |  add esp, 16
+  |  push ecx
+  |  ret
+  |.endif
+  |.endif
+  |
+  |->vm_ffi_call@4:			// Call C function via FFI.
+  |  // Caveat: needs special frame unwinding, see below.
+  |.if FFI
+  |.if X64
+  |  .type CCSTATE, CCallState, rbx
+  |  push rbp; mov rbp, rsp; push rbx; mov CCSTATE, CARG1
+  |.else
+  |  .type CCSTATE, CCallState, ebx
+  |  push ebp; mov ebp, esp; push ebx; mov CCSTATE, FCARG1
+  |.endif
+  |
+  |  // Readjust stack.
+  |.if X64
+  |  mov eax, CCSTATE->spadj
+  |  sub rsp, rax
+  |.else
+  |  sub esp, CCSTATE->spadj
+  |.if WIN
+  |  mov CCSTATE->spadj, esp
+  |.endif
+  |.endif
+  |
+  |  // Copy stack slots.
+  |  movzx ecx, byte CCSTATE->nsp
+  |  sub ecx, 1
+  |  js >2
+  |1:
+  |.if X64
+  |  mov rax, [CCSTATE+rcx*8+offsetof(CCallState, stack)]
+  |  mov [rsp+rcx*8+CCALL_SPS_EXTRA*8], rax
+  |.else
+  |  mov eax, [CCSTATE+ecx*4+offsetof(CCallState, stack)]
+  |  mov [esp+ecx*4], eax
+  |.endif
+  |  sub ecx, 1
+  |  jns <1
+  |2:
+  |
+  |.if X64
+  |  movzx eax, byte CCSTATE->nfpr
+  |  mov CARG1, CCSTATE->gpr[0]
+  |  mov CARG2, CCSTATE->gpr[1]
+  |  mov CARG3, CCSTATE->gpr[2]
+  |  mov CARG4, CCSTATE->gpr[3]
+  |.if not X64WIN
+  |  mov CARG5, CCSTATE->gpr[4]
+  |  mov CARG6, CCSTATE->gpr[5]
+  |.endif
+  |  test eax, eax; jz >5
+  |  movaps xmm0, CCSTATE->fpr[0]
+  |  movaps xmm1, CCSTATE->fpr[1]
+  |  movaps xmm2, CCSTATE->fpr[2]
+  |  movaps xmm3, CCSTATE->fpr[3]
+  |.if not X64WIN
+  |  cmp eax, 4; jbe >5
+  |  movaps xmm4, CCSTATE->fpr[4]
+  |  movaps xmm5, CCSTATE->fpr[5]
+  |  movaps xmm6, CCSTATE->fpr[6]
+  |  movaps xmm7, CCSTATE->fpr[7]
+  |.endif
+  |5:
+  |.else
+  |  mov FCARG1, CCSTATE->gpr[0]
+  |  mov FCARG2, CCSTATE->gpr[1]
+  |.endif
+  |
+  |  call aword CCSTATE->func
+  |
+  |.if X64
+  |  mov CCSTATE->gpr[0], rax
+  |  movaps CCSTATE->fpr[0], xmm0
+  |.if not X64WIN
+  |  mov CCSTATE->gpr[1], rdx
+  |  movaps CCSTATE->fpr[1], xmm1
+  |.endif
+  |.else
+  |  mov CCSTATE->gpr[0], eax
+  |  mov CCSTATE->gpr[1], edx
+  |  cmp byte CCSTATE->resx87, 1
+  |  jb >7
+  |  je >6
+  |  fstp qword CCSTATE->fpr[0].d[0]
+  |  jmp >7
+  |6:
+  |  fstp dword CCSTATE->fpr[0].f[0]
+  |7:
+  |.if WIN
+  |  sub CCSTATE->spadj, esp
+  |.endif
+  |.endif
+  |
+  |.if X64
+  |  mov rbx, [rbp-8]; leave; ret
+  |.else
+  |  mov ebx, [ebp-4]; leave; ret
+  |.endif
+  |.endif
+  |// Note: vm_ffi_call must be the last function in this object file!
+  |
+  |//-----------------------------------------------------------------------
+}
+
+/* Generate the code for a single instruction. */
+static void build_ins(BuildCtx *ctx, BCOp op, int defop)
+{
+  int vk = 0;
+  |// Note: aligning all instructions does not pay off.
+  |=>defop:
+
+  switch (op) {
+
+  /* -- Comparison ops ---------------------------------------------------- */
+
+  /* Remember: all ops branch for a true comparison, fall through otherwise. */
+
+  |.macro jmp_comp, lt, ge, le, gt, target
+  ||switch (op) {
+  ||case BC_ISLT:
+  |   lt target
+  ||break;
+  ||case BC_ISGE:
+  |   ge target
+  ||break;
+  ||case BC_ISLE:
+  |   le target
+  ||break;
+  ||case BC_ISGT:
+  |   gt target
+  ||break;
+  ||default: break;  /* Shut up GCC. */
+  ||}
+  |.endmacro
+
+  case BC_ISLT: case BC_ISGE: case BC_ISLE: case BC_ISGT:
+    |  // RA = src1, RD = src2, JMP with RD = target
+    |  ins_AD
+    |.if DUALNUM
+    |  checkint RA, >7
+    |  checkint RD, >8
+    |  mov RB, dword [BASE+RA*8]
+    |  add PC, 4
+    |  cmp RB, dword [BASE+RD*8]
+    |  jmp_comp jge, jl, jg, jle, >9
+    |6:
+    |  movzx RD, PC_RD
+    |  branchPC RD
+    |9:
+    |  ins_next
+    |
+    |7:  // RA is not an integer.
+    |  ja ->vmeta_comp
+    |  // RA is a number.
+    |  cmp dword [BASE+RD*8+4], LJ_TISNUM; jb >1; jne ->vmeta_comp
+    |  // RA is a number, RD is an integer.
+    |  cvtsi2sd xmm0, dword [BASE+RD*8]
+    |  jmp >2
+    |
+    |8:  // RA is an integer, RD is not an integer.
+    |  ja ->vmeta_comp
+    |  // RA is an integer, RD is a number.
+    |  cvtsi2sd xmm1, dword [BASE+RA*8]
+    |  movsd xmm0, qword [BASE+RD*8]
+    |  add PC, 4
+    |  ucomisd xmm0, xmm1
+    |  jmp_comp jbe, ja, jb, jae, <9
+    |  jmp <6
+    |.else
+    |  checknum RA, ->vmeta_comp
+    |  checknum RD, ->vmeta_comp
+    |.endif
+    |1:
+    |  movsd xmm0, qword [BASE+RD*8]
+    |2:
+    |  add PC, 4
+    |  ucomisd xmm0, qword [BASE+RA*8]
+    |3:
+    |  // Unordered: all of ZF CF PF set, ordered: PF clear.
+    |  // To preserve NaN semantics GE/GT branch on unordered, but LT/LE don't.
+    |.if DUALNUM
+    |  jmp_comp jbe, ja, jb, jae, <9
+    |  jmp <6
+    |.else
+    |  jmp_comp jbe, ja, jb, jae, >1
+    |  movzx RD, PC_RD
+    |  branchPC RD
+    |1:
+    |  ins_next
+    |.endif
+    break;
+
+  case BC_ISEQV: case BC_ISNEV:
+    vk = op == BC_ISEQV;
+    |  ins_AD	// RA = src1, RD = src2, JMP with RD = target
+    |  mov RB, [BASE+RD*8+4]
+    |  add PC, 4
+    |.if DUALNUM
+    |  cmp RB, LJ_TISNUM; jne >7
+    |  checkint RA, >8
+    |  mov RB, dword [BASE+RD*8]
+    |  cmp RB, dword [BASE+RA*8]
+    if (vk) {
+      |  jne >9
+    } else {
+      |  je >9
+    }
+    |  movzx RD, PC_RD
+    |  branchPC RD
+    |9:
+    |  ins_next
+    |
+    |7:  // RD is not an integer.
+    |  ja >5
+    |  // RD is a number.
+    |  cmp dword [BASE+RA*8+4], LJ_TISNUM; jb >1; jne >5
+    |  // RD is a number, RA is an integer.
+    |  cvtsi2sd xmm0, dword [BASE+RA*8]
+    |  jmp >2
+    |
+    |8:  // RD is an integer, RA is not an integer.
+    |  ja >5
+    |  // RD is an integer, RA is a number.
+    |  cvtsi2sd xmm0, dword [BASE+RD*8]
+    |  ucomisd xmm0, qword [BASE+RA*8]
+    |  jmp >4
+    |
+    |.else
+    |  cmp RB, LJ_TISNUM; jae >5
+    |  checknum RA, >5
+    |.endif
+    |1:
+    |  movsd xmm0, qword [BASE+RA*8]
+    |2:
+    |  ucomisd xmm0, qword [BASE+RD*8]
+    |4:
+  iseqne_fp:
+    if (vk) {
+      |  jp >2				// Unordered means not equal.
+      |  jne >2
+    } else {
+      |  jp >2				// Unordered means not equal.
+      |  je >1
+    }
+  iseqne_end:
+    if (vk) {
+      |1:				// EQ: Branch to the target.
+      |  movzx RD, PC_RD
+      |  branchPC RD
+      |2:				// NE: Fallthrough to next instruction.
+      |.if not FFI
+      |3:
+      |.endif
+    } else {
+      |.if not FFI
+      |3:
+      |.endif
+      |2:				// NE: Branch to the target.
+      |  movzx RD, PC_RD
+      |  branchPC RD
+      |1:				// EQ: Fallthrough to next instruction.
+    }
+    if (LJ_DUALNUM && (op == BC_ISEQV || op == BC_ISNEV ||
+		       op == BC_ISEQN || op == BC_ISNEN)) {
+      |  jmp <9
+    } else {
+      |  ins_next
+    }
+    |
+    if (op == BC_ISEQV || op == BC_ISNEV) {
+      |5:  // Either or both types are not numbers.
+      |.if FFI
+      |  cmp RB, LJ_TCDATA; je ->vmeta_equal_cd
+      |  checktp RA, LJ_TCDATA; je ->vmeta_equal_cd
+      |.endif
+      |  checktp RA, RB			// Compare types.
+      |  jne <2				// Not the same type?
+      |  cmp RB, LJ_TISPRI
+      |  jae <1				// Same type and primitive type?
+      |
+      |  // Same types and not a primitive type. Compare GCobj or pvalue.
+      |  mov RA, [BASE+RA*8]
+      |  mov RD, [BASE+RD*8]
+      |  cmp RA, RD
+      |  je <1				// Same GCobjs or pvalues?
+      |  cmp RB, LJ_TISTABUD
+      |  ja <2				// Different objects and not table/ud?
+      |.if X64
+      |  cmp RB, LJ_TUDATA		// And not 64 bit lightuserdata.
+      |  jb <2
+      |.endif
+      |
+      |  // Different tables or userdatas. Need to check __eq metamethod.
+      |  // Field metatable must be at same offset for GCtab and GCudata!
+      |  mov TAB:RB, TAB:RA->metatable
+      |  test TAB:RB, TAB:RB
+      |  jz <2				// No metatable?
+      |  test byte TAB:RB->nomm, 1<<MM_eq
+      |  jnz <2				// Or 'no __eq' flag set?
+      if (vk) {
+	|  xor RB, RB			// ne = 0
+      } else {
+	|  mov RB, 1			// ne = 1
+      }
+      |  jmp ->vmeta_equal		// Handle __eq metamethod.
+    } else {
+      |.if FFI
+      |3:
+      |  cmp RB, LJ_TCDATA
+      if (LJ_DUALNUM && vk) {
+	|  jne <9
+      } else {
+	|  jne <2
+      }
+      |  jmp ->vmeta_equal_cd
+      |.endif
+    }
+    break;
+  case BC_ISEQS: case BC_ISNES:
+    vk = op == BC_ISEQS;
+    |  ins_AND	// RA = src, RD = str const, JMP with RD = target
+    |  mov RB, [BASE+RA*8+4]
+    |  add PC, 4
+    |  cmp RB, LJ_TSTR; jne >3
+    |  mov RA, [BASE+RA*8]
+    |  cmp RA, [KBASE+RD*4]
+  iseqne_test:
+    if (vk) {
+      |  jne >2
+    } else {
+      |  je >1
+    }
+    goto iseqne_end;
+  case BC_ISEQN: case BC_ISNEN:
+    vk = op == BC_ISEQN;
+    |  ins_AD	// RA = src, RD = num const, JMP with RD = target
+    |  mov RB, [BASE+RA*8+4]
+    |  add PC, 4
+    |.if DUALNUM
+    |  cmp RB, LJ_TISNUM; jne >7
+    |  cmp dword [KBASE+RD*8+4], LJ_TISNUM; jne >8
+    |  mov RB, dword [KBASE+RD*8]
+    |  cmp RB, dword [BASE+RA*8]
+    if (vk) {
+      |  jne >9
+    } else {
+      |  je >9
+    }
+    |  movzx RD, PC_RD
+    |  branchPC RD
+    |9:
+    |  ins_next
+    |
+    |7:  // RA is not an integer.
+    |  ja >3
+    |  // RA is a number.
+    |  cmp dword [KBASE+RD*8+4], LJ_TISNUM; jb >1
+    |  // RA is a number, RD is an integer.
+    |  cvtsi2sd xmm0, dword [KBASE+RD*8]
+    |  jmp >2
+    |
+    |8:  // RA is an integer, RD is a number.
+    |  cvtsi2sd xmm0, dword [BASE+RA*8]
+    |  ucomisd xmm0, qword [KBASE+RD*8]
+    |  jmp >4
+    |.else
+    |  cmp RB, LJ_TISNUM; jae >3
+    |.endif
+    |1:
+    |  movsd xmm0, qword [KBASE+RD*8]
+    |2:
+    |  ucomisd xmm0, qword [BASE+RA*8]
+    |4:
+    goto iseqne_fp;
+  case BC_ISEQP: case BC_ISNEP:
+    vk = op == BC_ISEQP;
+    |  ins_AND	// RA = src, RD = primitive type (~), JMP with RD = target
+    |  mov RB, [BASE+RA*8+4]
+    |  add PC, 4
+    |  cmp RB, RD
+    if (!LJ_HASFFI) goto iseqne_test;
+    if (vk) {
+      |  jne >3
+      |  movzx RD, PC_RD
+      |  branchPC RD
+      |2:
+      |  ins_next
+      |3:
+      |  cmp RB, LJ_TCDATA; jne <2
+      |  jmp ->vmeta_equal_cd
+    } else {
+      |  je >2
+      |  cmp RB, LJ_TCDATA; je ->vmeta_equal_cd
+      |  movzx RD, PC_RD
+      |  branchPC RD
+      |2:
+      |  ins_next
+    }
+    break;
+
+  /* -- Unary test and copy ops ------------------------------------------- */
+
+  case BC_ISTC: case BC_ISFC: case BC_IST: case BC_ISF:
+    |  ins_AD	// RA = dst or unused, RD = src, JMP with RD = target
+    |  mov RB, [BASE+RD*8+4]
+    |  add PC, 4
+    |  cmp RB, LJ_TISTRUECOND
+    if (op == BC_IST || op == BC_ISTC) {
+      |  jae >1
+    } else {
+      |  jb >1
+    }
+    if (op == BC_ISTC || op == BC_ISFC) {
+      |  mov [BASE+RA*8+4], RB
+      |  mov RB, [BASE+RD*8]
+      |  mov [BASE+RA*8], RB
+    }
+    |  movzx RD, PC_RD
+    |  branchPC RD
+    |1:					// Fallthrough to the next instruction.
+    |  ins_next
+    break;
+
+  case BC_ISTYPE:
+    |  ins_AD	// RA = src, RD = -type
+    |  add RD, [BASE+RA*8+4]
+    |  jne ->vmeta_istype
+    |  ins_next
+    break;
+  case BC_ISNUM:
+    |  ins_AD	// RA = src, RD = -(TISNUM-1)
+    |  checknum RA, ->vmeta_istype
+    |  ins_next
+    break;
+
+  /* -- Unary ops --------------------------------------------------------- */
+
+  case BC_MOV:
+    |  ins_AD	// RA = dst, RD = src
+    |.if X64
+    |  mov RBa, [BASE+RD*8]
+    |  mov [BASE+RA*8], RBa
+    |.else
+    |  mov RB, [BASE+RD*8+4]
+    |  mov RD, [BASE+RD*8]
+    |  mov [BASE+RA*8+4], RB
+    |  mov [BASE+RA*8], RD
+    |.endif
+    |  ins_next_
+    break;
+  case BC_NOT:
+    |  ins_AD	// RA = dst, RD = src
+    |  xor RB, RB
+    |  checktp RD, LJ_TISTRUECOND
+    |  adc RB, LJ_TTRUE
+    |  mov [BASE+RA*8+4], RB
+    |  ins_next
+    break;
+  case BC_UNM:
+    |  ins_AD	// RA = dst, RD = src
+    |.if DUALNUM
+    |  checkint RD, >5
+    |  mov RB, [BASE+RD*8]
+    |  neg RB
+    |  jo >4
+    |  mov dword [BASE+RA*8+4], LJ_TISNUM
+    |  mov dword [BASE+RA*8], RB
+    |9:
+    |  ins_next
+    |4:
+    |  mov dword [BASE+RA*8+4], 0x41e00000  // 2^31.
+    |  mov dword [BASE+RA*8], 0
+    |  jmp <9
+    |5:
+    |  ja ->vmeta_unm
+    |.else
+    |  checknum RD, ->vmeta_unm
+    |.endif
+    |  movsd xmm0, qword [BASE+RD*8]
+    |  sseconst_sign xmm1, RDa
+    |  xorps xmm0, xmm1
+    |  movsd qword [BASE+RA*8], xmm0
+    |.if DUALNUM
+    |  jmp <9
+    |.else
+    |  ins_next
+    |.endif
+    break;
+  case BC_LEN:
+    |  ins_AD	// RA = dst, RD = src
+    |  checkstr RD, >2
+    |  mov STR:RD, [BASE+RD*8]
+    |.if DUALNUM
+    |  mov RD, dword STR:RD->len
+    |1:
+    |  mov dword [BASE+RA*8+4], LJ_TISNUM
+    |  mov dword [BASE+RA*8], RD
+    |.else
+    |  xorps xmm0, xmm0
+    |  cvtsi2sd xmm0, dword STR:RD->len
+    |1:
+    |  movsd qword [BASE+RA*8], xmm0
+    |.endif
+    |  ins_next
+    |2:
+    |  checktab RD, ->vmeta_len
+    |  mov TAB:FCARG1, [BASE+RD*8]
+#if LJ_52
+    |  mov TAB:RB, TAB:FCARG1->metatable
+    |  cmp TAB:RB, 0
+    |  jnz >9
+    |3:
+#endif
+    |->BC_LEN_Z:
+    |  mov RB, BASE			// Save BASE.
+    |  call extern lj_tab_len@4		// (GCtab *t)
+    |  // Length of table returned in eax (RD).
+    |.if DUALNUM
+    |  // Nothing to do.
+    |.else
+    |  cvtsi2sd xmm0, RD
+    |.endif
+    |  mov BASE, RB			// Restore BASE.
+    |  movzx RA, PC_RA
+    |  jmp <1
+#if LJ_52
+    |9:  // Check for __len.
+    |  test byte TAB:RB->nomm, 1<<MM_len
+    |  jnz <3
+    |  jmp ->vmeta_len			// 'no __len' flag NOT set: check.
+#endif
+    break;
+
+  /* -- Binary ops -------------------------------------------------------- */
+
+    |.macro ins_arithpre, sseins, ssereg
+    |  ins_ABC
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    ||switch (vk) {
+    ||case 0:
+    |   checknum RB, ->vmeta_arith_vn
+    |   .if DUALNUM
+    |     cmp dword [KBASE+RC*8+4], LJ_TISNUM; jae ->vmeta_arith_vn
+    |   .endif
+    |   movsd xmm0, qword [BASE+RB*8]
+    |   sseins ssereg, qword [KBASE+RC*8]
+    ||  break;
+    ||case 1:
+    |   checknum RB, ->vmeta_arith_nv
+    |   .if DUALNUM
+    |     cmp dword [KBASE+RC*8+4], LJ_TISNUM; jae ->vmeta_arith_nv
+    |   .endif
+    |   movsd xmm0, qword [KBASE+RC*8]
+    |   sseins ssereg, qword [BASE+RB*8]
+    ||  break;
+    ||default:
+    |   checknum RB, ->vmeta_arith_vv
+    |   checknum RC, ->vmeta_arith_vv
+    |   movsd xmm0, qword [BASE+RB*8]
+    |   sseins ssereg, qword [BASE+RC*8]
+    ||  break;
+    ||}
+    |.endmacro
+    |
+    |.macro ins_arithdn, intins
+    |  ins_ABC
+    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
+    ||switch (vk) {
+    ||case 0:
+    |   checkint RB, ->vmeta_arith_vn
+    |   cmp dword [KBASE+RC*8+4], LJ_TISNUM; jne ->vmeta_arith_vn
+    |   mov RB, [BASE+RB*8]
+    |   intins RB, [KBASE+RC*8]; jo ->vmeta_arith_vno
+    ||  break;
+    ||case 1:
+    |   checkint RB, ->vmeta_arith_nv
+    |   cmp dword [KBASE+RC*8+4], LJ_TISNUM; jne ->vmeta_arith_nv
+    |   mov RC, [KBASE+RC*8]
+    |   intins RC, [BASE+RB*8]; jo ->vmeta_arith_nvo
+    ||  break;
+    ||default:
+    |   checkint RB, ->vmeta_arith_vv
+    |   checkint RC, ->vmeta_arith_vv
+    |   mov RB, [BASE+RB*8]
+    |   intins RB, [BASE+RC*8]; jo ->vmeta_arith_vvo
+    ||  break;
+    ||}
+    |  mov dword [BASE+RA*8+4], LJ_TISNUM
+    ||if (vk == 1) {
+    |   mov dword [BASE+RA*8], RC
+    ||} else {
+    |   mov dword [BASE+RA*8], RB
+    ||}
+    |  ins_next
+    |.endmacro
+    |
+    |.macro ins_arithpost
+    |  movsd qword [BASE+RA*8], xmm0
+    |.endmacro
+    |
+    |.macro ins_arith, sseins
+    |  ins_arithpre sseins, xmm0
+    |  ins_arithpost
+    |  ins_next
+    |.endmacro
+    |
+    |.macro ins_arith, intins, sseins
+    |.if DUALNUM
+    |  ins_arithdn intins
+    |.else
+    |  ins_arith, sseins
+    |.endif
+    |.endmacro
+
+    |  // RA = dst, RB = src1 or num const, RC = src2 or num const
+  case BC_ADDVN: case BC_ADDNV: case BC_ADDVV:
+    |  ins_arith add, addsd
+    break;
+  case BC_SUBVN: case BC_SUBNV: case BC_SUBVV:
+    |  ins_arith sub, subsd
+    break;
+  case BC_MULVN: case BC_MULNV: case BC_MULVV:
+    |  ins_arith imul, mulsd
+    break;
+  case BC_DIVVN: case BC_DIVNV: case BC_DIVVV:
+    |  ins_arith divsd
+    break;
+  case BC_MODVN:
+    |  ins_arithpre movsd, xmm1
+    |->BC_MODVN_Z:
+    |  call ->vm_mod
+    |  ins_arithpost
+    |  ins_next
+    break;
+  case BC_MODNV: case BC_MODVV:
+    |  ins_arithpre movsd, xmm1
+    |  jmp ->BC_MODVN_Z			// Avoid 3 copies. It's slow anyway.
+    break;
+  case BC_POW:
+    |  ins_arithpre movsd, xmm1
+    |  mov RB, BASE
+    |.if not X64
+    |  movsd FPARG1, xmm0
+    |  movsd FPARG3, xmm1
+    |.endif
+    |  call extern pow
+    |  movzx RA, PC_RA
+    |  mov BASE, RB
+    |.if X64
+    |  ins_arithpost
+    |.else
+    |  fstp qword [BASE+RA*8]
+    |.endif
+    |  ins_next
+    break;
+
+  case BC_CAT:
+    |  ins_ABC	// RA = dst, RB = src_start, RC = src_end
+    |.if X64
+    |  mov L:CARG1d, SAVE_L
+    |  mov L:CARG1d->base, BASE
+    |  lea CARG2d, [BASE+RC*8]
+    |  mov CARG3d, RC
+    |  sub CARG3d, RB
+    |->BC_CAT_Z:
+    |  mov L:RB, L:CARG1d
+    |.else
+    |  lea RA, [BASE+RC*8]
+    |  sub RC, RB
+    |  mov ARG2, RA
+    |  mov ARG3, RC
+    |->BC_CAT_Z:
+    |  mov L:RB, SAVE_L
+    |  mov ARG1, L:RB
+    |  mov L:RB->base, BASE
+    |.endif
+    |  mov SAVE_PC, PC
+    |  call extern lj_meta_cat		// (lua_State *L, TValue *top, int left)
+    |  // NULL (finished) or TValue * (metamethod) returned in eax (RC).
+    |  mov BASE, L:RB->base
+    |  test RC, RC
+    |  jnz ->vmeta_binop
+    |  movzx RB, PC_RB			// Copy result to Stk[RA] from Stk[RB].
+    |  movzx RA, PC_RA
+    |.if X64
+    |  mov RCa, [BASE+RB*8]
+    |  mov [BASE+RA*8], RCa
+    |.else
+    |  mov RC, [BASE+RB*8+4]
+    |  mov RB, [BASE+RB*8]
+    |  mov [BASE+RA*8+4], RC
+    |  mov [BASE+RA*8], RB
+    |.endif
+    |  ins_next
+    break;
+
+  /* -- Constant ops ------------------------------------------------------ */
+
+  case BC_KSTR:
+    |  ins_AND	// RA = dst, RD = str const (~)
+    |  mov RD, [KBASE+RD*4]
+    |  mov dword [BASE+RA*8+4], LJ_TSTR
+    |  mov [BASE+RA*8], RD
+    |  ins_next
+    break;
+  case BC_KCDATA:
+    |.if FFI
+    |  ins_AND	// RA = dst, RD = cdata const (~)
+    |  mov RD, [KBASE+RD*4]
+    |  mov dword [BASE+RA*8+4], LJ_TCDATA
+    |  mov [BASE+RA*8], RD
+    |  ins_next
+    |.endif
+    break;
+  case BC_KSHORT:
+    |  ins_AD	// RA = dst, RD = signed int16 literal
+    |.if DUALNUM
+    |  movsx RD, RDW
+    |  mov dword [BASE+RA*8+4], LJ_TISNUM
+    |  mov dword [BASE+RA*8], RD
+    |.else
+    |  movsx RD, RDW			// Sign-extend literal.
+    |  cvtsi2sd xmm0, RD
+    |  movsd qword [BASE+RA*8], xmm0
+    |.endif
+    |  ins_next
+    break;
+  case BC_KNUM:
+    |  ins_AD	// RA = dst, RD = num const
+    |  movsd xmm0, qword [KBASE+RD*8]
+    |  movsd qword [BASE+RA*8], xmm0
+    |  ins_next
+    break;
+  case BC_KPRI:
+    |  ins_AND	// RA = dst, RD = primitive type (~)
+    |  mov [BASE+RA*8+4], RD
+    |  ins_next
+    break;
+  case BC_KNIL:
+    |  ins_AD	// RA = dst_start, RD = dst_end
+    |  lea RA, [BASE+RA*8+12]
+    |  lea RD, [BASE+RD*8+4]
+    |  mov RB, LJ_TNIL
+    |  mov [RA-8], RB			// Sets minimum 2 slots.
+    |1:
+    |  mov [RA], RB
+    |  add RA, 8
+    |  cmp RA, RD
+    |  jbe <1
+    |  ins_next
+    break;
+
+  /* -- Upvalue and function ops ------------------------------------------ */
+
+  case BC_UGET:
+    |  ins_AD	// RA = dst, RD = upvalue #
+    |  mov LFUNC:RB, [BASE-8]
+    |  mov UPVAL:RB, [LFUNC:RB+RD*4+offsetof(GCfuncL, uvptr)]
+    |  mov RB, UPVAL:RB->v
+    |.if X64
+    |  mov RDa, [RB]
+    |  mov [BASE+RA*8], RDa
+    |.else
+    |  mov RD, [RB+4]
+    |  mov RB, [RB]
+    |  mov [BASE+RA*8+4], RD
+    |  mov [BASE+RA*8], RB
+    |.endif
+    |  ins_next
+    break;
+  case BC_USETV:
+#define TV2MARKOFS \
+ ((int32_t)offsetof(GCupval, marked)-(int32_t)offsetof(GCupval, tv))
+    |  ins_AD	// RA = upvalue #, RD = src
+    |  mov LFUNC:RB, [BASE-8]
+    |  mov UPVAL:RB, [LFUNC:RB+RA*4+offsetof(GCfuncL, uvptr)]
+    |  cmp byte UPVAL:RB->closed, 0
+    |  mov RB, UPVAL:RB->v
+    |  mov RA, [BASE+RD*8]
+    |  mov RD, [BASE+RD*8+4]
+    |  mov [RB], RA
+    |  mov [RB+4], RD
+    |  jz >1
+    |  // Check barrier for closed upvalue.
+    |  test byte [RB+TV2MARKOFS], LJ_GC_BLACK		// isblack(uv)
+    |  jnz >2
+    |1:
+    |  ins_next
+    |
+    |2:  // Upvalue is black. Check if new value is collectable and white.
+    |  sub RD, LJ_TISGCV
+    |  cmp RD, LJ_TNUMX - LJ_TISGCV			// tvisgcv(v)
+    |  jbe <1
+    |  test byte GCOBJ:RA->gch.marked, LJ_GC_WHITES	// iswhite(v)
+    |  jz <1
+    |  // Crossed a write barrier. Move the barrier forward.
+    |.if X64 and not X64WIN
+    |  mov FCARG2, RB
+    |  mov RB, BASE			// Save BASE.
+    |.else
+    |  xchg FCARG2, RB			// Save BASE (FCARG2 == BASE).
+    |.endif
+    |  lea GL:FCARG1, [DISPATCH+GG_DISP2G]
+    |  call extern lj_gc_barrieruv@8	// (global_State *g, TValue *tv)
+    |  mov BASE, RB			// Restore BASE.
+    |  jmp <1
+    break;
+#undef TV2MARKOFS
+  case BC_USETS:
+    |  ins_AND	// RA = upvalue #, RD = str const (~)
+    |  mov LFUNC:RB, [BASE-8]
+    |  mov UPVAL:RB, [LFUNC:RB+RA*4+offsetof(GCfuncL, uvptr)]
+    |  mov GCOBJ:RA, [KBASE+RD*4]
+    |  mov RD, UPVAL:RB->v
+    |  mov [RD], GCOBJ:RA
+    |  mov dword [RD+4], LJ_TSTR
+    |  test byte UPVAL:RB->marked, LJ_GC_BLACK		// isblack(uv)
+    |  jnz >2
+    |1:
+    |  ins_next
+    |
+    |2:  // Check if string is white and ensure upvalue is closed.
+    |  test byte GCOBJ:RA->gch.marked, LJ_GC_WHITES	// iswhite(str)
+    |  jz <1
+    |  cmp byte UPVAL:RB->closed, 0
+    |  jz <1
+    |  // Crossed a write barrier. Move the barrier forward.
+    |  mov RB, BASE			// Save BASE (FCARG2 == BASE).
+    |  mov FCARG2, RD
+    |  lea GL:FCARG1, [DISPATCH+GG_DISP2G]
+    |  call extern lj_gc_barrieruv@8	// (global_State *g, TValue *tv)
+    |  mov BASE, RB			// Restore BASE.
+    |  jmp <1
+    break;
+  case BC_USETN:
+    |  ins_AD	// RA = upvalue #, RD = num const
+    |  mov LFUNC:RB, [BASE-8]
+    |  movsd xmm0, qword [KBASE+RD*8]
+    |  mov UPVAL:RB, [LFUNC:RB+RA*4+offsetof(GCfuncL, uvptr)]
+    |  mov RA, UPVAL:RB->v
+    |  movsd qword [RA], xmm0
+    |  ins_next
+    break;
+  case BC_USETP:
+    |  ins_AND	// RA = upvalue #, RD = primitive type (~)
+    |  mov LFUNC:RB, [BASE-8]
+    |  mov UPVAL:RB, [LFUNC:RB+RA*4+offsetof(GCfuncL, uvptr)]
+    |  mov RA, UPVAL:RB->v
+    |  mov [RA+4], RD
+    |  ins_next
+    break;
+  case BC_UCLO:
+    |  ins_AD	// RA = level, RD = target
+    |  branchPC RD			// Do this first to free RD.
+    |  mov L:RB, SAVE_L
+    |  cmp dword L:RB->openupval, 0
+    |  je >1
+    |  mov L:RB->base, BASE
+    |  lea FCARG2, [BASE+RA*8]		// Caveat: FCARG2 == BASE
+    |  mov L:FCARG1, L:RB		// Caveat: FCARG1 == RA
+    |  call extern lj_func_closeuv@8	// (lua_State *L, TValue *level)
+    |  mov BASE, L:RB->base
+    |1:
+    |  ins_next
+    break;
+
+  case BC_FNEW:
+    |  ins_AND	// RA = dst, RD = proto const (~) (holding function prototype)
+    |.if X64
+    |  mov L:RB, SAVE_L
+    |  mov L:RB->base, BASE		// Caveat: CARG2d/CARG3d may be BASE.
+    |  mov CARG3d, [BASE-8]
+    |  mov CARG2d, [KBASE+RD*4]		// Fetch GCproto *.
+    |  mov CARG1d, L:RB
+    |.else
+    |  mov LFUNC:RA, [BASE-8]
+    |  mov PROTO:RD, [KBASE+RD*4]	// Fetch GCproto *.
+    |  mov L:RB, SAVE_L
+    |  mov ARG3, LFUNC:RA
+    |  mov ARG2, PROTO:RD
+    |  mov ARG1, L:RB
+    |  mov L:RB->base, BASE
+    |.endif
+    |  mov SAVE_PC, PC
+    |  // (lua_State *L, GCproto *pt, GCfuncL *parent)
+    |  call extern lj_func_newL_gc
+    |  // GCfuncL * returned in eax (RC).
+    |  mov BASE, L:RB->base
+    |  movzx RA, PC_RA
+    |  mov [BASE+RA*8], LFUNC:RC
+    |  mov dword [BASE+RA*8+4], LJ_TFUNC
+    |  ins_next
+    break;
+
+  /* -- Table ops --------------------------------------------------------- */
+
+  case BC_TNEW:
+    |  ins_AD	// RA = dst, RD = hbits|asize
+    |  mov L:RB, SAVE_L
+    |  mov L:RB->base, BASE
+    |  mov RA, [DISPATCH+DISPATCH_GL(gc.total)]
+    |  cmp RA, [DISPATCH+DISPATCH_GL(gc.threshold)]
+    |  mov SAVE_PC, PC
+    |  jae >5
+    |1:
+    |.if X64
+    |  mov CARG3d, RD
+    |  and RD, 0x7ff
+    |  shr CARG3d, 11
+    |.else
+    |  mov RA, RD
+    |  and RD, 0x7ff
+    |  shr RA, 11
+    |  mov ARG3, RA
+    |.endif
+    |  cmp RD, 0x7ff
+    |  je >3
+    |2:
+    |.if X64
+    |  mov L:CARG1d, L:RB
+    |  mov CARG2d, RD
+    |.else
+    |  mov ARG1, L:RB
+    |  mov ARG2, RD
+    |.endif
+    |  call extern lj_tab_new  // (lua_State *L, int32_t asize, uint32_t hbits)
+    |  // Table * returned in eax (RC).
+    |  mov BASE, L:RB->base
+    |  movzx RA, PC_RA
+    |  mov [BASE+RA*8], TAB:RC
+    |  mov dword [BASE+RA*8+4], LJ_TTAB
+    |  ins_next
+    |3:  // Turn 0x7ff into 0x801.
+    |  mov RD, 0x801
+    |  jmp <2
+    |5:
+    |  mov L:FCARG1, L:RB
+    |  call extern lj_gc_step_fixtop@4	// (lua_State *L)
+    |  movzx RD, PC_RD
+    |  jmp <1
+    break;
+  case BC_TDUP:
+    |  ins_AND	// RA = dst, RD = table const (~) (holding template table)
+    |  mov L:RB, SAVE_L
+    |  mov RA, [DISPATCH+DISPATCH_GL(gc.total)]
+    |  mov SAVE_PC, PC
+    |  cmp RA, [DISPATCH+DISPATCH_GL(gc.threshold)]
+    |  mov L:RB->base, BASE
+    |  jae >3
+    |2:
+    |  mov TAB:FCARG2, [KBASE+RD*4]	// Caveat: FCARG2 == BASE
+    |  mov L:FCARG1, L:RB		// Caveat: FCARG1 == RA
+    |  call extern lj_tab_dup@8		// (lua_State *L, Table *kt)
+    |  // Table * returned in eax (RC).
+    |  mov BASE, L:RB->base
+    |  movzx RA, PC_RA
+    |  mov [BASE+RA*8], TAB:RC
+    |  mov dword [BASE+RA*8+4], LJ_TTAB
+    |  ins_next
+    |3:
+    |  mov L:FCARG1, L:RB
+    |  call extern lj_gc_step_fixtop@4	// (lua_State *L)
+    |  movzx RD, PC_RD			// Need to reload RD.
+    |  not RDa
+    |  jmp <2
+    break;
+
+  case BC_GGET:
+    |  ins_AND	// RA = dst, RD = str const (~)
+    |  mov LFUNC:RB, [BASE-8]
+    |  mov TAB:RB, LFUNC:RB->env
+    |  mov STR:RC, [KBASE+RD*4]
+    |  jmp ->BC_TGETS_Z
+    break;
+  case BC_GSET:
+    |  ins_AND	// RA = src, RD = str const (~)
+    |  mov LFUNC:RB, [BASE-8]
+    |  mov TAB:RB, LFUNC:RB->env
+    |  mov STR:RC, [KBASE+RD*4]
+    |  jmp ->BC_TSETS_Z
+    break;
+
+  case BC_TGETV:
+    |  ins_ABC	// RA = dst, RB = table, RC = key
+    |  checktab RB, ->vmeta_tgetv
+    |  mov TAB:RB, [BASE+RB*8]
+    |
+    |  // Integer key?
+    |.if DUALNUM
+    |  checkint RC, >5
+    |  mov RC, dword [BASE+RC*8]
+    |.else
+    |  // Convert number to int and back and compare.
+    |  checknum RC, >5
+    |  movsd xmm0, qword [BASE+RC*8]
+    |  cvttsd2si RC, xmm0
+    |  cvtsi2sd xmm1, RC
+    |  ucomisd xmm0, xmm1
+    |  jne ->vmeta_tgetv		// Generic numeric key? Use fallback.
+    |.endif
+    |  cmp RC, TAB:RB->asize	// Takes care of unordered, too.
+    |  jae ->vmeta_tgetv		// Not in array part? Use fallback.
+    |  shl RC, 3
+    |  add RC, TAB:RB->array
+    |  cmp dword [RC+4], LJ_TNIL	// Avoid overwriting RB in fastpath.
+    |  je >2
+    |  // Get array slot.
+    |.if X64
+    |  mov RBa, [RC]
+    |  mov [BASE+RA*8], RBa
+    |.else
+    |  mov RB, [RC]
+    |  mov RC, [RC+4]
+    |  mov [BASE+RA*8], RB
+    |  mov [BASE+RA*8+4], RC
+    |.endif
+    |1:
+    |  ins_next
+    |
+    |2:  // Check for __index if table value is nil.
+    |  cmp dword TAB:RB->metatable, 0	// Shouldn't overwrite RA for fastpath.
+    |  jz >3
+    |  mov TAB:RA, TAB:RB->metatable
+    |  test byte TAB:RA->nomm, 1<<MM_index
+    |  jz ->vmeta_tgetv			// 'no __index' flag NOT set: check.
+    |  movzx RA, PC_RA			// Restore RA.
+    |3:
+    |  mov dword [BASE+RA*8+4], LJ_TNIL
+    |  jmp <1
+    |
+    |5:  // String key?
+    |  checkstr RC, ->vmeta_tgetv
+    |  mov STR:RC, [BASE+RC*8]
+    |  jmp ->BC_TGETS_Z
+    break;
+  case BC_TGETS:
+    |  ins_ABC	// RA = dst, RB = table, RC = str const (~)
+    |  not RCa
+    |  mov STR:RC, [KBASE+RC*4]
+    |  checktab RB, ->vmeta_tgets
+    |  mov TAB:RB, [BASE+RB*8]
+    |->BC_TGETS_Z:	// RB = GCtab *, RC = GCstr *, refetches PC_RA.
+    |  mov RA, TAB:RB->hmask
+    |  and RA, STR:RC->sid
+    |  imul RA, #NODE
+    |  add NODE:RA, TAB:RB->node
+    |1:
+    |  cmp dword NODE:RA->key.it, LJ_TSTR
+    |  jne >4
+    |  cmp dword NODE:RA->key.gcr, STR:RC
+    |  jne >4
+    |  // Ok, key found. Assumes: offsetof(Node, val) == 0
+    |  cmp dword [RA+4], LJ_TNIL	// Avoid overwriting RB in fastpath.
+    |  je >5				// Key found, but nil value?
+    |  movzx RC, PC_RA
+    |  // Get node value.
+    |.if X64
+    |  mov RBa, [RA]
+    |  mov [BASE+RC*8], RBa
+    |.else
+    |  mov RB, [RA]
+    |  mov RA, [RA+4]
+    |  mov [BASE+RC*8], RB
+    |  mov [BASE+RC*8+4], RA
+    |.endif
+    |2:
+    |  ins_next
+    |
+    |3:
+    |  movzx RC, PC_RA
+    |  mov dword [BASE+RC*8+4], LJ_TNIL
+    |  jmp <2
+    |
+    |4:  // Follow hash chain.
+    |  mov NODE:RA, NODE:RA->next
+    |  test NODE:RA, NODE:RA
+    |  jnz <1
+    |  // End of hash chain: key not found, nil result.
+    |
+    |5:  // Check for __index if table value is nil.
+    |  mov TAB:RA, TAB:RB->metatable
+    |  test TAB:RA, TAB:RA
+    |  jz <3				// No metatable: done.
+    |  test byte TAB:RA->nomm, 1<<MM_index
+    |  jnz <3				// 'no __index' flag set: done.
+    |  jmp ->vmeta_tgets		// Caveat: preserve STR:RC.
+    break;
+  case BC_TGETB:
+    |  ins_ABC	// RA = dst, RB = table, RC = byte literal
+    |  checktab RB, ->vmeta_tgetb
+    |  mov TAB:RB, [BASE+RB*8]
+    |  cmp RC, TAB:RB->asize
+    |  jae ->vmeta_tgetb
+    |  shl RC, 3
+    |  add RC, TAB:RB->array
+    |  cmp dword [RC+4], LJ_TNIL	// Avoid overwriting RB in fastpath.
+    |  je >2
+    |  // Get array slot.
+    |.if X64
+    |  mov RBa, [RC]
+    |  mov [BASE+RA*8], RBa
+    |.else
+    |  mov RB, [RC]
+    |  mov RC, [RC+4]
+    |  mov [BASE+RA*8], RB
+    |  mov [BASE+RA*8+4], RC
+    |.endif
+    |1:
+    |  ins_next
+    |
+    |2:  // Check for __index if table value is nil.
+    |  cmp dword TAB:RB->metatable, 0	// Shouldn't overwrite RA for fastpath.
+    |  jz >3
+    |  mov TAB:RA, TAB:RB->metatable
+    |  test byte TAB:RA->nomm, 1<<MM_index
+    |  jz ->vmeta_tgetb			// 'no __index' flag NOT set: check.
+    |  movzx RA, PC_RA			// Restore RA.
+    |3:
+    |  mov dword [BASE+RA*8+4], LJ_TNIL
+    |  jmp <1
+    break;
+  case BC_TGETR:
+    |  ins_ABC	// RA = dst, RB = table, RC = key
+    |  mov TAB:RB, [BASE+RB*8]
+    |.if DUALNUM
+    |  mov RC, dword [BASE+RC*8]
+    |.else
+    |  cvttsd2si RC, qword [BASE+RC*8]
+    |.endif
+    |  cmp RC, TAB:RB->asize
+    |  jae ->vmeta_tgetr		// Not in array part? Use fallback.
+    |  shl RC, 3
+    |  add RC, TAB:RB->array
+    |  // Get array slot.
+    |->BC_TGETR_Z:
+    |.if X64
+    |  mov RBa, [RC]
+    |  mov [BASE+RA*8], RBa
+    |.else
+    |  mov RB, [RC]
+    |  mov RC, [RC+4]
+    |  mov [BASE+RA*8], RB
+    |  mov [BASE+RA*8+4], RC
+    |.endif
+    |->BC_TGETR2_Z:
+    |  ins_next
+    break;
+
+  case BC_TSETV:
+    |  ins_ABC	// RA = src, RB = table, RC = key
+    |  checktab RB, ->vmeta_tsetv
+    |  mov TAB:RB, [BASE+RB*8]
+    |
+    |  // Integer key?
+    |.if DUALNUM
+    |  checkint RC, >5
+    |  mov RC, dword [BASE+RC*8]
+    |.else
+    |  // Convert number to int and back and compare.
+    |  checknum RC, >5
+    |  movsd xmm0, qword [BASE+RC*8]
+    |  cvttsd2si RC, xmm0
+    |  cvtsi2sd xmm1, RC
+    |  ucomisd xmm0, xmm1
+    |  jne ->vmeta_tsetv		// Generic numeric key? Use fallback.
+    |.endif
+    |  cmp RC, TAB:RB->asize		// Takes care of unordered, too.
+    |  jae ->vmeta_tsetv
+    |  shl RC, 3
+    |  add RC, TAB:RB->array
+    |  cmp dword [RC+4], LJ_TNIL
+    |  je >3				// Previous value is nil?
+    |1:
+    |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+    |  jnz >7
+    |2:  // Set array slot.
+    |.if X64
+    |  mov RBa, [BASE+RA*8]
+    |  mov [RC], RBa
+    |.else
+    |  mov RB, [BASE+RA*8+4]
+    |  mov RA, [BASE+RA*8]
+    |  mov [RC+4], RB
+    |  mov [RC], RA
+    |.endif
+    |  ins_next
+    |
+    |3:  // Check for __newindex if previous value is nil.
+    |  cmp dword TAB:RB->metatable, 0	// Shouldn't overwrite RA for fastpath.
+    |  jz <1
+    |  mov TAB:RA, TAB:RB->metatable
+    |  test byte TAB:RA->nomm, 1<<MM_newindex
+    |  jz ->vmeta_tsetv			// 'no __newindex' flag NOT set: check.
+    |  movzx RA, PC_RA			// Restore RA.
+    |  jmp <1
+    |
+    |5:  // String key?
+    |  checkstr RC, ->vmeta_tsetv
+    |  mov STR:RC, [BASE+RC*8]
+    |  jmp ->BC_TSETS_Z
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, RA
+    |  movzx RA, PC_RA			// Restore RA.
+    |  jmp <2
+    break;
+  case BC_TSETS:
+    |  ins_ABC	// RA = src, RB = table, RC = str const (~)
+    |  not RCa
+    |  mov STR:RC, [KBASE+RC*4]
+    |  checktab RB, ->vmeta_tsets
+    |  mov TAB:RB, [BASE+RB*8]
+    |->BC_TSETS_Z:	// RB = GCtab *, RC = GCstr *, refetches PC_RA.
+    |  mov RA, TAB:RB->hmask
+    |  and RA, STR:RC->sid
+    |  imul RA, #NODE
+    |  mov byte TAB:RB->nomm, 0		// Clear metamethod cache.
+    |  add NODE:RA, TAB:RB->node
+    |1:
+    |  cmp dword NODE:RA->key.it, LJ_TSTR
+    |  jne >5
+    |  cmp dword NODE:RA->key.gcr, STR:RC
+    |  jne >5
+    |  // Ok, key found. Assumes: offsetof(Node, val) == 0
+    |  cmp dword [RA+4], LJ_TNIL
+    |  je >4				// Previous value is nil?
+    |2:
+    |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+    |  jnz >7
+    |3:  // Set node value.
+    |  movzx RC, PC_RA
+    |.if X64
+    |  mov RBa, [BASE+RC*8]
+    |  mov [RA], RBa
+    |.else
+    |  mov RB, [BASE+RC*8+4]
+    |  mov RC, [BASE+RC*8]
+    |  mov [RA+4], RB
+    |  mov [RA], RC
+    |.endif
+    |  ins_next
+    |
+    |4:  // Check for __newindex if previous value is nil.
+    |  cmp dword TAB:RB->metatable, 0	// Shouldn't overwrite RA for fastpath.
+    |  jz <2
+    |  mov TMP1, RA			// Save RA.
+    |  mov TAB:RA, TAB:RB->metatable
+    |  test byte TAB:RA->nomm, 1<<MM_newindex
+    |  jz ->vmeta_tsets			// 'no __newindex' flag NOT set: check.
+    |  mov RA, TMP1			// Restore RA.
+    |  jmp <2
+    |
+    |5:  // Follow hash chain.
+    |  mov NODE:RA, NODE:RA->next
+    |  test NODE:RA, NODE:RA
+    |  jnz <1
+    |  // End of hash chain: key not found, add a new one.
+    |
+    |  // But check for __newindex first.
+    |  mov TAB:RA, TAB:RB->metatable
+    |  test TAB:RA, TAB:RA
+    |  jz >6				// No metatable: continue.
+    |  test byte TAB:RA->nomm, 1<<MM_newindex
+    |  jz ->vmeta_tsets			// 'no __newindex' flag NOT set: check.
+    |6:
+    |  mov TMP1, STR:RC
+    |  mov TMP2, LJ_TSTR
+    |  mov TMP3, TAB:RB			// Save TAB:RB for us.
+    |.if X64
+    |  mov L:CARG1d, SAVE_L
+    |  mov L:CARG1d->base, BASE
+    |  lea CARG3, TMP1
+    |  mov CARG2d, TAB:RB
+    |  mov L:RB, L:CARG1d
+    |.else
+    |  lea RC, TMP1			// Store temp. TValue in TMP1/TMP2.
+    |  mov ARG2, TAB:RB
+    |  mov L:RB, SAVE_L
+    |  mov ARG3, RC
+    |  mov ARG1, L:RB
+    |  mov L:RB->base, BASE
+    |.endif
+    |  mov SAVE_PC, PC
+    |  call extern lj_tab_newkey	// (lua_State *L, GCtab *t, TValue *k)
+    |  // Handles write barrier for the new key. TValue * returned in eax (RC).
+    |  mov BASE, L:RB->base
+    |  mov TAB:RB, TMP3			// Need TAB:RB for barrier.
+    |  mov RA, eax
+    |  jmp <2				// Must check write barrier for value.
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, RC		// Destroys STR:RC.
+    |  jmp <3
+    break;
+  case BC_TSETB:
+    |  ins_ABC	// RA = src, RB = table, RC = byte literal
+    |  checktab RB, ->vmeta_tsetb
+    |  mov TAB:RB, [BASE+RB*8]
+    |  cmp RC, TAB:RB->asize
+    |  jae ->vmeta_tsetb
+    |  shl RC, 3
+    |  add RC, TAB:RB->array
+    |  cmp dword [RC+4], LJ_TNIL
+    |  je >3				// Previous value is nil?
+    |1:
+    |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+    |  jnz >7
+    |2:	 // Set array slot.
+    |.if X64
+    |  mov RAa, [BASE+RA*8]
+    |  mov [RC], RAa
+    |.else
+    |  mov RB, [BASE+RA*8+4]
+    |  mov RA, [BASE+RA*8]
+    |  mov [RC+4], RB
+    |  mov [RC], RA
+    |.endif
+    |  ins_next
+    |
+    |3:  // Check for __newindex if previous value is nil.
+    |  cmp dword TAB:RB->metatable, 0	// Shouldn't overwrite RA for fastpath.
+    |  jz <1
+    |  mov TAB:RA, TAB:RB->metatable
+    |  test byte TAB:RA->nomm, 1<<MM_newindex
+    |  jz ->vmeta_tsetb			// 'no __newindex' flag NOT set: check.
+    |  movzx RA, PC_RA			// Restore RA.
+    |  jmp <1
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, RA
+    |  movzx RA, PC_RA			// Restore RA.
+    |  jmp <2
+    break;
+  case BC_TSETR:
+    |  ins_ABC	// RA = src, RB = table, RC = key
+    |  mov TAB:RB, [BASE+RB*8]
+    |.if DUALNUM
+    |  mov RC, dword [BASE+RC*8]
+    |.else
+    |  cvttsd2si RC, qword [BASE+RC*8]
+    |.endif
+    |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+    |  jnz >7
+    |2:
+    |  cmp RC, TAB:RB->asize
+    |  jae ->vmeta_tsetr
+    |  shl RC, 3
+    |  add RC, TAB:RB->array
+    |  // Set array slot.
+    |->BC_TSETR_Z:
+    |.if X64
+    |  mov RBa, [BASE+RA*8]
+    |  mov [RC], RBa
+    |.else
+    |  mov RB, [BASE+RA*8+4]
+    |  mov RA, [BASE+RA*8]
+    |  mov [RC+4], RB
+    |  mov [RC], RA
+    |.endif
+    |  ins_next
+    |
+    |7:  // Possible table write barrier for the value. Skip valiswhite check.
+    |  barrierback TAB:RB, RA
+    |  movzx RA, PC_RA			// Restore RA.
+    |  jmp <2
+    break;
+
+  case BC_TSETM:
+    |  ins_AD	// RA = base (table at base-1), RD = num const (start index)
+    |  mov TMP1, KBASE			// Need one more free register.
+    |  mov KBASE, dword [KBASE+RD*8]	// Integer constant is in lo-word.
+    |1:
+    |  lea RA, [BASE+RA*8]
+    |  mov TAB:RB, [RA-8]		// Guaranteed to be a table.
+    |  test byte TAB:RB->marked, LJ_GC_BLACK	// isblack(table)
+    |  jnz >7
+    |2:
+    |  mov RD, MULTRES
+    |  sub RD, 1
+    |  jz >4				// Nothing to copy?
+    |  add RD, KBASE			// Compute needed size.
+    |  cmp RD, TAB:RB->asize
+    |  ja >5				// Doesn't fit into array part?
+    |  sub RD, KBASE
+    |  shl KBASE, 3
+    |  add KBASE, TAB:RB->array
+    |3:  // Copy result slots to table.
+    |.if X64
+    |  mov RBa, [RA]
+    |  add RA, 8
+    |  mov [KBASE], RBa
+    |.else
+    |  mov RB, [RA]
+    |  mov [KBASE], RB
+    |  mov RB, [RA+4]
+    |  add RA, 8
+    |  mov [KBASE+4], RB
+    |.endif
+    |  add KBASE, 8
+    |  sub RD, 1
+    |  jnz <3
+    |4:
+    |  mov KBASE, TMP1
+    |  ins_next
+    |
+    |5:  // Need to resize array part.
+    |.if X64
+    |  mov L:CARG1d, SAVE_L
+    |  mov L:CARG1d->base, BASE		// Caveat: CARG2d/CARG3d may be BASE.
+    |  mov CARG2d, TAB:RB
+    |  mov CARG3d, RD
+    |  mov L:RB, L:CARG1d
+    |.else
+    |  mov ARG2, TAB:RB
+    |  mov L:RB, SAVE_L
+    |  mov L:RB->base, BASE
+    |  mov ARG3, RD
+    |  mov ARG1, L:RB
+    |.endif
+    |  mov SAVE_PC, PC
+    |  call extern lj_tab_reasize	// (lua_State *L, GCtab *t, int nasize)
+    |  mov BASE, L:RB->base
+    |  movzx RA, PC_RA			// Restore RA.
+    |  jmp <1				// Retry.
+    |
+    |7:  // Possible table write barrier for any value. Skip valiswhite check.
+    |  barrierback TAB:RB, RD
+    |  jmp <2
+    break;
+
+  /* -- Calls and vararg handling ----------------------------------------- */
+
+  case BC_CALL: case BC_CALLM:
+    |  ins_A_C	// RA = base, (RB = nresults+1,) RC = nargs+1 | extra_nargs
+    if (op == BC_CALLM) {
+      |  add NARGS:RD, MULTRES
+    }
+    |  cmp dword [BASE+RA*8+4], LJ_TFUNC
+    |  mov LFUNC:RB, [BASE+RA*8]
+    |  jne ->vmeta_call_ra
+    |  lea BASE, [BASE+RA*8+8]
+    |  ins_call
+    break;
+
+  case BC_CALLMT:
+    |  ins_AD	// RA = base, RD = extra_nargs
+    |  add NARGS:RD, MULTRES
+    |  // Fall through. Assumes BC_CALLT follows and ins_AD is a no-op.
+    break;
+  case BC_CALLT:
+    |  ins_AD	// RA = base, RD = nargs+1
+    |  lea RA, [BASE+RA*8+8]
+    |  mov KBASE, BASE			// Use KBASE for move + vmeta_call hint.
+    |  mov LFUNC:RB, [RA-8]
+    |  cmp dword [RA-4], LJ_TFUNC
+    |  jne ->vmeta_call
+    |->BC_CALLT_Z:
+    |  mov PC, [BASE-4]
+    |  test PC, FRAME_TYPE
+    |  jnz >7
+    |1:
+    |  mov [BASE-8], LFUNC:RB		// Copy function down, reloaded below.
+    |  mov MULTRES, NARGS:RD
+    |  sub NARGS:RD, 1
+    |  jz >3
+    |2:  // Move args down.
+    |.if X64
+    |  mov RBa, [RA]
+    |  add RA, 8
+    |  mov [KBASE], RBa
+    |.else
+    |  mov RB, [RA]
+    |  mov [KBASE], RB
+    |  mov RB, [RA+4]
+    |  add RA, 8
+    |  mov [KBASE+4], RB
+    |.endif
+    |  add KBASE, 8
+    |  sub NARGS:RD, 1
+    |  jnz <2
+    |
+    |  mov LFUNC:RB, [BASE-8]
+    |3:
+    |  mov NARGS:RD, MULTRES
+    |  cmp byte LFUNC:RB->ffid, 1	// (> FF_C) Calling a fast function?
+    |  ja >5
+    |4:
+    |  ins_callt
+    |
+    |5:  // Tailcall to a fast function.
+    |  test PC, FRAME_TYPE		// Lua frame below?
+    |  jnz <4
+    |  movzx RA, PC_RA
+    |  not RAa
+    |  mov LFUNC:KBASE, [BASE+RA*8-8]	// Need to prepare KBASE.
+    |  mov KBASE, LFUNC:KBASE->pc
+    |  mov KBASE, [KBASE+PC2PROTO(k)]
+    |  jmp <4
+    |
+    |7:  // Tailcall from a vararg function.
+    |  sub PC, FRAME_VARG
+    |  test PC, FRAME_TYPEP
+    |  jnz >8				// Vararg frame below?
+    |  sub BASE, PC			// Need to relocate BASE/KBASE down.
+    |  mov KBASE, BASE
+    |  mov PC, [BASE-4]
+    |  jmp <1
+    |8:
+    |  add PC, FRAME_VARG
+    |  jmp <1
+    break;
+
+  case BC_ITERC:
+    |  ins_A	// RA = base, (RB = nresults+1,) RC = nargs+1 (2+1)
+    |  lea RA, [BASE+RA*8+8]		// fb = base+1
+    |.if X64
+    |  mov RBa, [RA-24]			// Copy state. fb[0] = fb[-3].
+    |  mov RCa, [RA-16]			// Copy control var. fb[1] = fb[-2].
+    |  mov [RA], RBa
+    |  mov [RA+8], RCa
+    |.else
+    |  mov RB, [RA-24]			// Copy state. fb[0] = fb[-3].
+    |  mov RC, [RA-20]
+    |  mov [RA], RB
+    |  mov [RA+4], RC
+    |  mov RB, [RA-16]			// Copy control var. fb[1] = fb[-2].
+    |  mov RC, [RA-12]
+    |  mov [RA+8], RB
+    |  mov [RA+12], RC
+    |.endif
+    |  mov LFUNC:RB, [RA-32]		// Copy callable. fb[-1] = fb[-4]
+    |  mov RC, [RA-28]
+    |  mov [RA-8], LFUNC:RB
+    |  mov [RA-4], RC
+    |  cmp RC, LJ_TFUNC			// Handle like a regular 2-arg call.
+    |  mov NARGS:RD, 2+1
+    |  jne ->vmeta_call
+    |  mov BASE, RA
+    |  ins_call
+    break;
+
+  case BC_ITERN:
+    |.if JIT
+    |  hotloop RB
+    |.endif
+    |->vm_IITERN:
+    |  ins_A	// RA = base, (RB = nresults+1, RC = nargs+1 (2+1))
+    |  mov TMP1, KBASE			// Need two more free registers.
+    |  mov TMP2, DISPATCH
+    |  mov TAB:RB, [BASE+RA*8-16]
+    |  mov RC, [BASE+RA*8-8]		// Get index from control var.
+    |  mov DISPATCH, TAB:RB->asize
+    |  add PC, 4
+    |  mov KBASE, TAB:RB->array
+    |1:  // Traverse array part.
+    |  cmp RC, DISPATCH; jae >5		// Index points after array part?
+    |  cmp dword [KBASE+RC*8+4], LJ_TNIL; je >4
+    |.if DUALNUM
+    |  mov dword [BASE+RA*8+4], LJ_TISNUM
+    |  mov dword [BASE+RA*8], RC
+    |.else
+    |  cvtsi2sd xmm0, RC
+    |.endif
+    |  // Copy array slot to returned value.
+    |.if X64
+    |  mov RBa, [KBASE+RC*8]
+    |  mov [BASE+RA*8+8], RBa
+    |.else
+    |  mov RB, [KBASE+RC*8+4]
+    |  mov [BASE+RA*8+12], RB
+    |  mov RB, [KBASE+RC*8]
+    |  mov [BASE+RA*8+8], RB
+    |.endif
+    |  add RC, 1
+    |  // Return array index as a numeric key.
+    |.if DUALNUM
+    |  // See above.
+    |.else
+    |  movsd qword [BASE+RA*8], xmm0
+    |.endif
+    |  mov [BASE+RA*8-8], RC		// Update control var.
+    |2:
+    |  movzx RD, PC_RD			// Get target from ITERL.
+    |  branchPC RD
+    |3:
+    |  mov DISPATCH, TMP2
+    |  mov KBASE, TMP1
+    |  ins_next
+    |
+    |4:  // Skip holes in array part.
+    |  add RC, 1
+    |  jmp <1
+    |
+    |5:  // Traverse hash part.
+    |  sub RC, DISPATCH
+    |6:
+    |  cmp RC, TAB:RB->hmask; ja <3	// End of iteration? Branch to ITERL+1.
+    |  imul KBASE, RC, #NODE
+    |  add NODE:KBASE, TAB:RB->node
+    |  cmp dword NODE:KBASE->val.it, LJ_TNIL; je >7
+    |  lea DISPATCH, [RC+DISPATCH+1]
+    |  // Copy key and value from hash slot.
+    |.if X64
+    |  mov RBa, NODE:KBASE->key
+    |  mov RCa, NODE:KBASE->val
+    |  mov [BASE+RA*8], RBa
+    |  mov [BASE+RA*8+8], RCa
+    |.else
+    |  mov RB, NODE:KBASE->key.gcr
+    |  mov RC, NODE:KBASE->key.it
+    |  mov [BASE+RA*8], RB
+    |  mov [BASE+RA*8+4], RC
+    |  mov RB, NODE:KBASE->val.gcr
+    |  mov RC, NODE:KBASE->val.it
+    |  mov [BASE+RA*8+8], RB
+    |  mov [BASE+RA*8+12], RC
+    |.endif
+    |  mov [BASE+RA*8-8], DISPATCH
+    |  jmp <2
+    |
+    |7:  // Skip holes in hash part.
+    |  add RC, 1
+    |  jmp <6
+    break;
+
+  case BC_ISNEXT:
+    |  ins_AD	// RA = base, RD = target (points to ITERN)
+    |  cmp dword [BASE+RA*8-20], LJ_TFUNC; jne >5
+    |  mov CFUNC:RB, [BASE+RA*8-24]
+    |  cmp dword [BASE+RA*8-12], LJ_TTAB; jne >5
+    |  cmp dword [BASE+RA*8-4], LJ_TNIL; jne >5
+    |  cmp byte CFUNC:RB->ffid, FF_next_N; jne >5
+    |  branchPC RD
+    |  mov dword [BASE+RA*8-8], 0	// Initialize control var.
+    |  mov dword [BASE+RA*8-4], LJ_KEYINDEX
+    |1:
+    |  ins_next
+    |5:  // Despecialize bytecode if any of the checks fail.
+    |  mov PC_OP, BC_JMP
+    |  branchPC RD
+    |.if JIT
+    |  cmp byte [PC], BC_ITERN
+    |  jne >6
+    |.endif
+    |  mov byte [PC], BC_ITERC
+    |  jmp <1
+    |.if JIT
+    |6:  // Unpatch JLOOP.
+    |  mov RA, [DISPATCH+DISPATCH_J(trace)]
+    |  movzx RC, word [PC+2]
+    |  mov TRACE:RA, [RA+RC*4]
+    |  mov eax, TRACE:RA->startins
+    |  mov al, BC_ITERC
+    |  mov dword [PC], eax
+    |  jmp <1
+    |.endif
+    break;
+
+  case BC_VARG:
+    |  ins_ABC	// RA = base, RB = nresults+1, RC = numparams
+    |  mov TMP1, KBASE			// Need one more free register.
+    |  lea KBASE, [BASE+RC*8+(8+FRAME_VARG)]
+    |  lea RA, [BASE+RA*8]
+    |  sub KBASE, [BASE-4]
+    |  // Note: KBASE may now be even _above_ BASE if nargs was < numparams.
+    |  test RB, RB
+    |  jz >5				// Copy all varargs?
+    |  lea RB, [RA+RB*8-8]
+    |  cmp KBASE, BASE			// No vararg slots?
+    |  jnb >2
+    |1:  // Copy vararg slots to destination slots.
+    |.if X64
+    |  mov RCa, [KBASE-8]
+    |  add KBASE, 8
+    |  mov [RA], RCa
+    |.else
+    |  mov RC, [KBASE-8]
+    |  mov [RA], RC
+    |  mov RC, [KBASE-4]
+    |  add KBASE, 8
+    |  mov [RA+4], RC
+    |.endif
+    |  add RA, 8
+    |  cmp RA, RB			// All destination slots filled?
+    |  jnb >3
+    |  cmp KBASE, BASE			// No more vararg slots?
+    |  jb <1
+    |2:  // Fill up remainder with nil.
+    |  mov dword [RA+4], LJ_TNIL
+    |  add RA, 8
+    |  cmp RA, RB
+    |  jb <2
+    |3:
+    |  mov KBASE, TMP1
+    |  ins_next
+    |
+    |5:  // Copy all varargs.
+    |  mov MULTRES, 1			// MULTRES = 0+1
+    |  mov RC, BASE
+    |  sub RC, KBASE
+    |  jbe <3				// No vararg slots?
+    |  mov RB, RC
+    |  shr RB, 3
+    |  add RB, 1
+    |  mov MULTRES, RB			// MULTRES = #varargs+1
+    |  mov L:RB, SAVE_L
+    |  add RC, RA
+    |  cmp RC, L:RB->maxstack
+    |  ja >7				// Need to grow stack?
+    |6:  // Copy all vararg slots.
+    |.if X64
+    |  mov RCa, [KBASE-8]
+    |  add KBASE, 8
+    |  mov [RA], RCa
+    |.else
+    |  mov RC, [KBASE-8]
+    |  mov [RA], RC
+    |  mov RC, [KBASE-4]
+    |  add KBASE, 8
+    |  mov [RA+4], RC
+    |.endif
+    |  add RA, 8
+    |  cmp KBASE, BASE			// No more vararg slots?
+    |  jb <6
+    |  jmp <3
+    |
+    |7:  // Grow stack for varargs.
+    |  mov L:RB->base, BASE
+    |  mov L:RB->top, RA
+    |  mov SAVE_PC, PC
+    |  sub KBASE, BASE			// Need delta, because BASE may change.
+    |  mov FCARG2, MULTRES
+    |  sub FCARG2, 1
+    |  mov FCARG1, L:RB
+    |  call extern lj_state_growstack@8	// (lua_State *L, int n)
+    |  mov BASE, L:RB->base
+    |  mov RA, L:RB->top
+    |  add KBASE, BASE
+    |  jmp <6
+    break;
+
+  /* -- Returns ----------------------------------------------------------- */
+
+  case BC_RETM:
+    |  ins_AD	// RA = results, RD = extra_nresults
+    |  add RD, MULTRES			// MULTRES >=1, so RD >=1.
+    |  // Fall through. Assumes BC_RET follows and ins_AD is a no-op.
+    break;
+
+  case BC_RET: case BC_RET0: case BC_RET1:
+    |  ins_AD	// RA = results, RD = nresults+1
+    if (op != BC_RET0) {
+      |  shl RA, 3
+    }
+    |1:
+    |  mov PC, [BASE-4]
+    |  mov MULTRES, RD			// Save nresults+1.
+    |  test PC, FRAME_TYPE		// Check frame type marker.
+    |  jnz >7				// Not returning to a fixarg Lua func?
+    switch (op) {
+    case BC_RET:
+      |->BC_RET_Z:
+      |  mov KBASE, BASE		// Use KBASE for result move.
+      |  sub RD, 1
+      |  jz >3
+      |2:  // Move results down.
+      |.if X64
+      |  mov RBa, [KBASE+RA]
+      |  mov [KBASE-8], RBa
+      |.else
+      |  mov RB, [KBASE+RA]
+      |  mov [KBASE-8], RB
+      |  mov RB, [KBASE+RA+4]
+      |  mov [KBASE-4], RB
+      |.endif
+      |  add KBASE, 8
+      |  sub RD, 1
+      |  jnz <2
+      |3:
+      |  mov RD, MULTRES		// Note: MULTRES may be >255.
+      |  movzx RB, PC_RB		// So cannot compare with RDL!
+      |5:
+      |  cmp RB, RD			// More results expected?
+      |  ja >6
+      break;
+    case BC_RET1:
+      |.if X64
+      |  mov RBa, [BASE+RA]
+      |  mov [BASE-8], RBa
+      |.else
+      |  mov RB, [BASE+RA+4]
+      |  mov [BASE-4], RB
+      |  mov RB, [BASE+RA]
+      |  mov [BASE-8], RB
+      |.endif
+      /* fallthrough */
+    case BC_RET0:
+      |5:
+      |  cmp PC_RB, RDL			// More results expected?
+      |  ja >6
+    default:
+      break;
+    }
+    |  movzx RA, PC_RA
+    |  not RAa				// Note: ~RA = -(RA+1)
+    |  lea BASE, [BASE+RA*8]		// base = base - (RA+1)*8
+    |  mov LFUNC:KBASE, [BASE-8]
+    |  mov KBASE, LFUNC:KBASE->pc
+    |  mov KBASE, [KBASE+PC2PROTO(k)]
+    |  ins_next
+    |
+    |6:  // Fill up results with nil.
+    if (op == BC_RET) {
+      |  mov dword [KBASE-4], LJ_TNIL	// Note: relies on shifted base.
+      |  add KBASE, 8
+    } else {
+      |  mov dword [BASE+RD*8-12], LJ_TNIL
+    }
+    |  add RD, 1
+    |  jmp <5
+    |
+    |7:  // Non-standard return case.
+    |  lea RB, [PC-FRAME_VARG]
+    |  test RB, FRAME_TYPEP
+    |  jnz ->vm_return
+    |  // Return from vararg function: relocate BASE down and RA up.
+    |  sub BASE, RB
+    if (op != BC_RET0) {
+      |  add RA, RB
+    }
+    |  jmp <1
+    break;
+
+  /* -- Loops and branches ------------------------------------------------ */
+
+  |.define FOR_IDX,  [RA];    .define FOR_TIDX,  dword [RA+4]
+  |.define FOR_STOP, [RA+8];  .define FOR_TSTOP, dword [RA+12]
+  |.define FOR_STEP, [RA+16]; .define FOR_TSTEP, dword [RA+20]
+  |.define FOR_EXT,  [RA+24]; .define FOR_TEXT,  dword [RA+28]
+
+  case BC_FORL:
+    |.if JIT
+    |  hotloop RB
+    |.endif
+    | // Fall through. Assumes BC_IFORL follows and ins_AJ is a no-op.
+    break;
+
+  case BC_JFORI:
+  case BC_JFORL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_FORI:
+  case BC_IFORL:
+    vk = (op == BC_IFORL || op == BC_JFORL);
+    |  ins_AJ	// RA = base, RD = target (after end of loop or start of loop)
+    |  lea RA, [BASE+RA*8]
+    if (LJ_DUALNUM) {
+      |  cmp FOR_TIDX, LJ_TISNUM; jne >9
+      if (!vk) {
+	|  cmp FOR_TSTOP, LJ_TISNUM; jne ->vmeta_for
+	|  cmp FOR_TSTEP, LJ_TISNUM; jne ->vmeta_for
+	|  mov RB, dword FOR_IDX
+	|  cmp dword FOR_STEP, 0; jl >5
+      } else {
+#ifdef LUA_USE_ASSERT
+	|  cmp FOR_TSTOP, LJ_TISNUM; jne ->assert_bad_for_arg_type
+	|  cmp FOR_TSTEP, LJ_TISNUM; jne ->assert_bad_for_arg_type
+#endif
+	|  mov RB, dword FOR_STEP
+	|  test RB, RB; js >5
+	|  add RB, dword FOR_IDX; jo >1
+	|  mov dword FOR_IDX, RB
+      }
+      |  cmp RB, dword FOR_STOP
+      |  mov FOR_TEXT, LJ_TISNUM
+      |  mov dword FOR_EXT, RB
+      if (op == BC_FORI) {
+	|  jle >7
+	|1:
+	|6:
+	|  branchPC RD
+      } else if (op == BC_JFORI) {
+	|  branchPC RD
+	|  movzx RD, PC_RD
+	|  jle =>BC_JLOOP
+	|1:
+	|6:
+      } else if (op == BC_IFORL) {
+	|  jg >7
+	|6:
+	|  branchPC RD
+	|1:
+      } else {
+	|  jle =>BC_JLOOP
+	|1:
+	|6:
+      }
+      |7:
+      |  ins_next
+      |
+      |5:  // Invert check for negative step.
+      if (vk) {
+	|  add RB, dword FOR_IDX; jo <1
+	|  mov dword FOR_IDX, RB
+      }
+      |  cmp RB, dword FOR_STOP
+      |  mov FOR_TEXT, LJ_TISNUM
+      |  mov dword FOR_EXT, RB
+      if (op == BC_FORI) {
+	|  jge <7
+      } else if (op == BC_JFORI) {
+	|  branchPC RD
+	|  movzx RD, PC_RD
+	|  jge =>BC_JLOOP
+      } else if (op == BC_IFORL) {
+	|  jl <7
+      } else {
+	|  jge =>BC_JLOOP
+      }
+      |  jmp <6
+      |9:  // Fallback to FP variant.
+    } else if (!vk) {
+      |  cmp FOR_TIDX, LJ_TISNUM
+    }
+    if (!vk) {
+      |  jae ->vmeta_for
+      |  cmp FOR_TSTOP, LJ_TISNUM; jae ->vmeta_for
+    } else {
+#ifdef LUA_USE_ASSERT
+      |  cmp FOR_TSTOP, LJ_TISNUM; jae ->assert_bad_for_arg_type
+      |  cmp FOR_TSTEP, LJ_TISNUM; jae ->assert_bad_for_arg_type
+#endif
+    }
+    |  mov RB, FOR_TSTEP		// Load type/hiword of for step.
+    if (!vk) {
+      |  cmp RB, LJ_TISNUM; jae ->vmeta_for
+    }
+    |  movsd xmm0, qword FOR_IDX
+    |  movsd xmm1, qword FOR_STOP
+    if (vk) {
+      |  addsd xmm0, qword FOR_STEP
+      |  movsd qword FOR_IDX, xmm0
+      |  test RB, RB; js >3
+    } else {
+      |  jl >3
+    }
+    |  ucomisd xmm1, xmm0
+    |1:
+    |  movsd qword FOR_EXT, xmm0
+    if (op == BC_FORI) {
+      |.if DUALNUM
+      |  jnb <7
+      |.else
+      |  jnb >2
+      |  branchPC RD
+      |.endif
+    } else if (op == BC_JFORI) {
+      |  branchPC RD
+      |  movzx RD, PC_RD
+      |  jnb =>BC_JLOOP
+    } else if (op == BC_IFORL) {
+      |.if DUALNUM
+      |  jb <7
+      |.else
+      |  jb >2
+      |  branchPC RD
+      |.endif
+    } else {
+      |  jnb =>BC_JLOOP
+    }
+    |.if DUALNUM
+    |  jmp <6
+    |.else
+    |2:
+    |  ins_next
+    |.endif
+    |
+    |3:  // Invert comparison if step is negative.
+    |  ucomisd xmm0, xmm1
+    |  jmp <1
+    break;
+
+  case BC_ITERL:
+    |.if JIT
+    |  hotloop RB
+    |.endif
+    | // Fall through. Assumes BC_IITERL follows and ins_AJ is a no-op.
+    break;
+
+  case BC_JITERL:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IITERL:
+    |  ins_AJ	// RA = base, RD = target
+    |  lea RA, [BASE+RA*8]
+    |  mov RB, [RA+4]
+    |  cmp RB, LJ_TNIL; je >1		// Stop if iterator returned nil.
+    if (op == BC_JITERL) {
+      |  mov [RA-4], RB
+      |  mov RB, [RA]
+      |  mov [RA-8], RB
+      |  jmp =>BC_JLOOP
+    } else {
+      |  branchPC RD			// Otherwise save control var + branch.
+      |  mov RD, [RA]
+      |  mov [RA-4], RB
+      |  mov [RA-8], RD
+    }
+    |1:
+    |  ins_next
+    break;
+
+  case BC_LOOP:
+    |  ins_A	// RA = base, RD = target (loop extent)
+    |  // Note: RA/RD is only used by trace recorder to determine scope/extent
+    |  // This opcode does NOT jump, it's only purpose is to detect a hot loop.
+    |.if JIT
+    |  hotloop RB
+    |.endif
+    | // Fall through. Assumes BC_ILOOP follows and ins_A is a no-op.
+    break;
+
+  case BC_ILOOP:
+    |  ins_A	// RA = base, RD = target (loop extent)
+    |  ins_next
+    break;
+
+  case BC_JLOOP:
+    |.if JIT
+    |  ins_AD	// RA = base (ignored), RD = traceno
+    |  mov RA, [DISPATCH+DISPATCH_J(trace)]
+    |  mov TRACE:RD, [RA+RD*4]
+    |  mov RDa, TRACE:RD->mcode
+    |  mov L:RB, SAVE_L
+    |  mov [DISPATCH+DISPATCH_GL(jit_base)], BASE
+    |  mov [DISPATCH+DISPATCH_GL(tmpbuf.L)], L:RB
+    |  // Save additional callee-save registers only used in compiled code.
+    |.if X64WIN
+    |  mov TMPQ, r12
+    |  mov TMPa, r13
+    |  mov CSAVE_4, r14
+    |  mov CSAVE_3, r15
+    |  mov RAa, rsp
+    |  sub rsp, 9*16+4*8
+    |  movdqa [RAa], xmm6
+    |  movdqa [RAa-1*16], xmm7
+    |  movdqa [RAa-2*16], xmm8
+    |  movdqa [RAa-3*16], xmm9
+    |  movdqa [RAa-4*16], xmm10
+    |  movdqa [RAa-5*16], xmm11
+    |  movdqa [RAa-6*16], xmm12
+    |  movdqa [RAa-7*16], xmm13
+    |  movdqa [RAa-8*16], xmm14
+    |  movdqa [RAa-9*16], xmm15
+    |.elif X64
+    |  mov TMPQ, r12
+    |  mov TMPa, r13
+    |  sub rsp, 16
+    |.endif
+    |  jmp RDa
+    |.endif
+    break;
+
+  case BC_JMP:
+    |  ins_AJ	// RA = unused, RD = target
+    |  branchPC RD
+    |  ins_next
+    break;
+
+  /* -- Function headers -------------------------------------------------- */
+
+   /*
+   ** Reminder: A function may be called with func/args above L->maxstack,
+   ** i.e. occupying EXTRA_STACK slots. And vmeta_call may add one extra slot,
+   ** too. This means all FUNC* ops (including fast functions) must check
+   ** for stack overflow _before_ adding more slots!
+   */
+
+  case BC_FUNCF:
+    |.if JIT
+    |  hotcall RB
+    |.endif
+  case BC_FUNCV:  /* NYI: compiled vararg functions. */
+    | // Fall through. Assumes BC_IFUNCF/BC_IFUNCV follow and ins_AD is a no-op.
+    break;
+
+  case BC_JFUNCF:
+#if !LJ_HASJIT
+    break;
+#endif
+  case BC_IFUNCF:
+    |  ins_AD  // BASE = new base, RA = framesize, RD = nargs+1
+    |  mov KBASE, [PC-4+PC2PROTO(k)]
+    |  mov L:RB, SAVE_L
+    |  lea RA, [BASE+RA*8]		// Top of frame.
+    |  cmp RA, L:RB->maxstack
+    |  ja ->vm_growstack_f
+    |  movzx RA, byte [PC-4+PC2PROTO(numparams)]
+    |  cmp NARGS:RD, RA			// Check for missing parameters.
+    |  jbe >3
+    |2:
+    if (op == BC_JFUNCF) {
+      |  movzx RD, PC_RD
+      |  jmp =>BC_JLOOP
+    } else {
+      |  ins_next
+    }
+    |
+    |3:  // Clear missing parameters.
+    |  mov dword [BASE+NARGS:RD*8-4], LJ_TNIL
+    |  add NARGS:RD, 1
+    |  cmp NARGS:RD, RA
+    |  jbe <3
+    |  jmp <2
+    break;
+
+  case BC_JFUNCV:
+#if !LJ_HASJIT
+    break;
+#endif
+    | int3  // NYI: compiled vararg functions
+    break;  /* NYI: compiled vararg functions. */
+
+  case BC_IFUNCV:
+    |  ins_AD  // BASE = new base, RA = framesize, RD = nargs+1
+    |  lea RB, [NARGS:RD*8+FRAME_VARG]
+    |  lea RD, [BASE+NARGS:RD*8]
+    |  mov LFUNC:KBASE, [BASE-8]
+    |  mov [RD-4], RB			// Store delta + FRAME_VARG.
+    |  mov [RD-8], LFUNC:KBASE		// Store copy of LFUNC.
+    |  mov L:RB, SAVE_L
+    |  lea RA, [RD+RA*8]
+    |  cmp RA, L:RB->maxstack
+    |  ja ->vm_growstack_v		// Need to grow stack.
+    |  mov RA, BASE
+    |  mov BASE, RD
+    |  movzx RB, byte [PC-4+PC2PROTO(numparams)]
+    |  test RB, RB
+    |  jz >2
+    |1:  // Copy fixarg slots up to new frame.
+    |  add RA, 8
+    |  cmp RA, BASE
+    |  jnb >3				// Less args than parameters?
+    |  mov KBASE, [RA-8]
+    |  mov [RD], KBASE
+    |  mov KBASE, [RA-4]
+    |  mov [RD+4], KBASE
+    |  add RD, 8
+    |  mov dword [RA-4], LJ_TNIL	// Clear old fixarg slot (help the GC).
+    |  sub RB, 1
+    |  jnz <1
+    |2:
+    if (op == BC_JFUNCV) {
+      |  movzx RD, PC_RD
+      |  jmp =>BC_JLOOP
+    } else {
+      |  mov KBASE, [PC-4+PC2PROTO(k)]
+      |  ins_next
+    }
+    |
+    |3:  // Clear missing parameters.
+    |  mov dword [RD+4], LJ_TNIL
+    |  add RD, 8
+    |  sub RB, 1
+    |  jnz <3
+    |  jmp <2
+    break;
+
+  case BC_FUNCC:
+  case BC_FUNCCW:
+    |  ins_AD  // BASE = new base, RA = ins RA|RD (unused), RD = nargs+1
+    |  mov CFUNC:RB, [BASE-8]
+    |  mov KBASEa, CFUNC:RB->f
+    |  mov L:RB, SAVE_L
+    |  lea RD, [BASE+NARGS:RD*8-8]
+    |  mov L:RB->base, BASE
+    |  lea RA, [RD+8*LUA_MINSTACK]
+    |  cmp RA, L:RB->maxstack
+    |  mov L:RB->top, RD
+    if (op == BC_FUNCC) {
+      |.if X64
+      |  mov CARG1d, L:RB			// Caveat: CARG1d may be RA.
+      |.else
+      |  mov ARG1, L:RB
+      |.endif
+    } else {
+      |.if X64
+      |  mov CARG2, KBASEa
+      |  mov CARG1d, L:RB			// Caveat: CARG1d may be RA.
+      |.else
+      |  mov ARG2, KBASEa
+      |  mov ARG1, L:RB
+      |.endif
+    }
+    |  ja ->vm_growstack_c		// Need to grow stack.
+    |  set_vmstate C
+    if (op == BC_FUNCC) {
+      |  call KBASEa			// (lua_State *L)
+    } else {
+      |  // (lua_State *L, lua_CFunction f)
+      |  call aword [DISPATCH+DISPATCH_GL(wrapf)]
+    }
+    |  // nresults returned in eax (RD).
+    |  mov BASE, L:RB->base
+    |  mov [DISPATCH+DISPATCH_GL(cur_L)], L:RB
+    |  set_vmstate INTERP
+    |  lea RA, [BASE+RD*8]
+    |  neg RA
+    |  add RA, L:RB->top		// RA = (L->top-(L->base+nresults))*8
+    |  mov PC, [BASE-4]			// Fetch PC of caller.
+    |  jmp ->vm_returnc
+    break;
+
+  /* ---------------------------------------------------------------------- */
+
+  default:
+    fprintf(stderr, "Error: undefined opcode BC_%s\n", bc_names[op]);
+    exit(2);
+    break;
+  }
+}
+
+static int build_backend(BuildCtx *ctx)
+{
+  int op;
+  dasm_growpc(Dst, BC__MAX);
+  build_subroutines(ctx);
+  |.code_op
+  for (op = 0; op < BC__MAX; op++)
+    build_ins(ctx, (BCOp)op, op);
+  return BC__MAX;
+}
+
+/* Emit pseudo frame-info for all assembler functions. */
+static void emit_asm_debug(BuildCtx *ctx)
+{
+  int fcofs = (int)((uint8_t *)ctx->glob[GLOB_vm_ffi_call] - ctx->code);
+#if LJ_64
+#define SZPTR	"8"
+#define BSZPTR	"3"
+#define REG_SP	"0x7"
+#define REG_RA	"0x10"
+#else
+#define SZPTR	"4"
+#define BSZPTR	"2"
+#define REG_SP	"0x4"
+#define REG_RA	"0x8"
+#endif
+  switch (ctx->mode) {
+  case BUILD_elfasm:
+    fprintf(ctx->fp, "\t.section .debug_frame,\"\",@progbits\n");
+    fprintf(ctx->fp,
+	".Lframe0:\n"
+	"\t.long .LECIE0-.LSCIE0\n"
+	".LSCIE0:\n"
+	"\t.long 0xffffffff\n"
+	"\t.byte 0x1\n"
+	"\t.string \"\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -" SZPTR "\n"
+	"\t.byte " REG_RA "\n"
+	"\t.byte 0xc\n\t.uleb128 " REG_SP "\n\t.uleb128 " SZPTR "\n"
+	"\t.byte 0x80+" REG_RA "\n\t.uleb128 0x1\n"
+	"\t.align " SZPTR "\n"
+	".LECIE0:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE0:\n"
+	"\t.long .LEFDE0-.LASFDE0\n"
+	".LASFDE0:\n"
+	"\t.long .Lframe0\n"
+#if LJ_64
+	"\t.quad .Lbegin\n"
+	"\t.quad %d\n"
+	"\t.byte 0xe\n\t.uleb128 %d\n"		/* def_cfa_offset */
+	"\t.byte 0x86\n\t.uleb128 0x2\n"	/* offset rbp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset rbx */
+	"\t.byte 0x8f\n\t.uleb128 0x4\n"	/* offset r15 */
+	"\t.byte 0x8e\n\t.uleb128 0x5\n"	/* offset r14 */
+#if LJ_NO_UNWIND
+	"\t.byte 0x8d\n\t.uleb128 0x6\n"	/* offset r13 */
+	"\t.byte 0x8c\n\t.uleb128 0x7\n"	/* offset r12 */
+#endif
+#else
+	"\t.long .Lbegin\n"
+	"\t.long %d\n"
+	"\t.byte 0xe\n\t.uleb128 %d\n"		/* def_cfa_offset */
+	"\t.byte 0x85\n\t.uleb128 0x2\n"	/* offset ebp */
+	"\t.byte 0x87\n\t.uleb128 0x3\n"	/* offset edi */
+	"\t.byte 0x86\n\t.uleb128 0x4\n"	/* offset esi */
+	"\t.byte 0x83\n\t.uleb128 0x5\n"	/* offset ebx */
+#endif
+	"\t.align " SZPTR "\n"
+	".LEFDE0:\n\n", fcofs, CFRAME_SIZE);
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".LSFDE1:\n"
+	"\t.long .LEFDE1-.LASFDE1\n"
+	".LASFDE1:\n"
+	"\t.long .Lframe0\n"
+#if LJ_64
+	"\t.quad lj_vm_ffi_call\n"
+	"\t.quad %d\n"
+	"\t.byte 0xe\n\t.uleb128 16\n"		/* def_cfa_offset */
+	"\t.byte 0x86\n\t.uleb128 0x2\n"	/* offset rbp */
+	"\t.byte 0xd\n\t.uleb128 0x6\n"		/* def_cfa_register rbp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset rbx */
+#else
+	"\t.long lj_vm_ffi_call\n"
+	"\t.long %d\n"
+	"\t.byte 0xe\n\t.uleb128 8\n"		/* def_cfa_offset */
+	"\t.byte 0x85\n\t.uleb128 0x2\n"	/* offset ebp */
+	"\t.byte 0xd\n\t.uleb128 0x5\n"		/* def_cfa_register ebp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset ebx */
+#endif
+	"\t.align " SZPTR "\n"
+	".LEFDE1:\n\n", (int)ctx->codesz - fcofs);
+#endif
+#if !LJ_NO_UNWIND
+#if LJ_TARGET_SOLARIS
+#if LJ_64
+    fprintf(ctx->fp, "\t.section .eh_frame,\"a\",@unwind\n");
+#else
+    fprintf(ctx->fp, "\t.section .eh_frame,\"aw\",@progbits\n");
+#endif
+#else
+    fprintf(ctx->fp, "\t.section .eh_frame,\"a\",@progbits\n");
+#endif
+    fprintf(ctx->fp,
+	".Lframe1:\n"
+	"\t.long .LECIE1-.LSCIE1\n"
+	".LSCIE1:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zPR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -" SZPTR "\n"
+	"\t.byte " REG_RA "\n"
+	"\t.uleb128 6\n"			/* augmentation length */
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.long lj_err_unwind_dwarf-.\n"
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.uleb128 " REG_SP "\n\t.uleb128 " SZPTR "\n"
+	"\t.byte 0x80+" REG_RA "\n\t.uleb128 0x1\n"
+	"\t.align " SZPTR "\n"
+	".LECIE1:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE2:\n"
+	"\t.long .LEFDE2-.LASFDE2\n"
+	".LASFDE2:\n"
+	"\t.long .LASFDE2-.Lframe1\n"
+	"\t.long .Lbegin-.\n"
+	"\t.long %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+	"\t.byte 0xe\n\t.uleb128 %d\n"		/* def_cfa_offset */
+#if LJ_64
+	"\t.byte 0x86\n\t.uleb128 0x2\n"	/* offset rbp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset rbx */
+	"\t.byte 0x8f\n\t.uleb128 0x4\n"	/* offset r15 */
+	"\t.byte 0x8e\n\t.uleb128 0x5\n"	/* offset r14 */
+#else
+	"\t.byte 0x85\n\t.uleb128 0x2\n"	/* offset ebp */
+	"\t.byte 0x87\n\t.uleb128 0x3\n"	/* offset edi */
+	"\t.byte 0x86\n\t.uleb128 0x4\n"	/* offset esi */
+	"\t.byte 0x83\n\t.uleb128 0x5\n"	/* offset ebx */
+#endif
+	"\t.align " SZPTR "\n"
+	".LEFDE2:\n\n", fcofs, CFRAME_SIZE);
+#if LJ_HASFFI
+    fprintf(ctx->fp,
+	".Lframe2:\n"
+	"\t.long .LECIE2-.LSCIE2\n"
+	".LSCIE2:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.string \"zR\"\n"
+	"\t.uleb128 0x1\n"
+	"\t.sleb128 -" SZPTR "\n"
+	"\t.byte " REG_RA "\n"
+	"\t.uleb128 1\n"			/* augmentation length */
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.uleb128 " REG_SP "\n\t.uleb128 " SZPTR "\n"
+	"\t.byte 0x80+" REG_RA "\n\t.uleb128 0x1\n"
+	"\t.align " SZPTR "\n"
+	".LECIE2:\n\n");
+    fprintf(ctx->fp,
+	".LSFDE3:\n"
+	"\t.long .LEFDE3-.LASFDE3\n"
+	".LASFDE3:\n"
+	"\t.long .LASFDE3-.Lframe2\n"
+	"\t.long lj_vm_ffi_call-.\n"
+	"\t.long %d\n"
+	"\t.uleb128 0\n"			/* augmentation length */
+#if LJ_64
+	"\t.byte 0xe\n\t.uleb128 16\n"		/* def_cfa_offset */
+	"\t.byte 0x86\n\t.uleb128 0x2\n"	/* offset rbp */
+	"\t.byte 0xd\n\t.uleb128 0x6\n"		/* def_cfa_register rbp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset rbx */
+#else
+	"\t.byte 0xe\n\t.uleb128 8\n"		/* def_cfa_offset */
+	"\t.byte 0x85\n\t.uleb128 0x2\n"	/* offset ebp */
+	"\t.byte 0xd\n\t.uleb128 0x5\n"		/* def_cfa_register ebp */
+	"\t.byte 0x83\n\t.uleb128 0x3\n"	/* offset ebx */
+#endif
+	"\t.align " SZPTR "\n"
+	".LEFDE3:\n\n", (int)ctx->codesz - fcofs);
+#endif
+#endif
+    break;
+#if !LJ_NO_UNWIND
+  /* Mental note: never let Apple design an assembler.
+  ** Or a linker. Or a plastic case. But I digress.
+  */
+  case BUILD_machasm: {
+#if LJ_HASFFI
+    int fcsize = 0;
+#endif
+    int i;
+    fprintf(ctx->fp, "\t.section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support\n");
+    fprintf(ctx->fp,
+	"EH_frame1:\n"
+	"\t.set L$set$x,LECIEX-LSCIEX\n"
+	"\t.long L$set$x\n"
+	"LSCIEX:\n"
+	"\t.long 0\n"
+	"\t.byte 0x1\n"
+	"\t.ascii \"zPR\\0\"\n"
+	"\t.byte 0x1\n"
+	"\t.byte 128-" SZPTR "\n"
+	"\t.byte " REG_RA "\n"
+	"\t.byte 6\n"				/* augmentation length */
+	"\t.byte 0x9b\n"			/* indirect|pcrel|sdata4 */
+#if LJ_64
+	"\t.long _lj_err_unwind_dwarf+4@GOTPCREL\n"
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.byte " REG_SP "\n\t.byte " SZPTR "\n"
+#else
+	"\t.long L_lj_err_unwind_dwarf$non_lazy_ptr-.\n"
+	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	"\t.byte 0xc\n\t.byte 0x5\n\t.byte 0x4\n"  /* esp=5 on 32 bit MACH-O. */
+#endif
+	"\t.byte 0x80+" REG_RA "\n\t.byte 0x1\n"
+	"\t.align " BSZPTR "\n"
+	"LECIEX:\n\n");
+    for (i = 0; i < ctx->nsym; i++) {
+      const char *name = ctx->sym[i].name;
+      int32_t size = ctx->sym[i+1].ofs - ctx->sym[i].ofs;
+      if (size == 0) continue;
+#if LJ_HASFFI
+      if (!strcmp(name, "_lj_vm_ffi_call")) { fcsize = size; continue; }
+#endif
+      fprintf(ctx->fp,
+	  "%s.eh:\n"
+	  "LSFDE%d:\n"
+	  "\t.set L$set$%d,LEFDE%d-LASFDE%d\n"
+	  "\t.long L$set$%d\n"
+	  "LASFDE%d:\n"
+	  "\t.long LASFDE%d-EH_frame1\n"
+	  "\t.long %s-.\n"
+	  "\t.long %d\n"
+	  "\t.byte 0\n"				/* augmentation length */
+	  "\t.byte 0xe\n\t.byte %d\n"		/* def_cfa_offset */
+#if LJ_64
+	  "\t.byte 0x86\n\t.byte 0x2\n"		/* offset rbp */
+	  "\t.byte 0x83\n\t.byte 0x3\n"		/* offset rbx */
+	  "\t.byte 0x8f\n\t.byte 0x4\n"		/* offset r15 */
+	  "\t.byte 0x8e\n\t.byte 0x5\n"		/* offset r14 */
+#else
+	  "\t.byte 0x84\n\t.byte 0x2\n"		/* offset ebp (4 for MACH-O)*/
+	  "\t.byte 0x87\n\t.byte 0x3\n"		/* offset edi */
+	  "\t.byte 0x86\n\t.byte 0x4\n"		/* offset esi */
+	  "\t.byte 0x83\n\t.byte 0x5\n"		/* offset ebx */
+#endif
+	  "\t.align " BSZPTR "\n"
+	  "LEFDE%d:\n\n",
+	  name, i, i, i, i, i, i, i, name, size, CFRAME_SIZE, i);
+    }
+#if LJ_HASFFI
+    if (fcsize) {
+      fprintf(ctx->fp,
+	  "EH_frame2:\n"
+	  "\t.set L$set$y,LECIEY-LSCIEY\n"
+	  "\t.long L$set$y\n"
+	  "LSCIEY:\n"
+	  "\t.long 0\n"
+	  "\t.byte 0x1\n"
+	  "\t.ascii \"zR\\0\"\n"
+	  "\t.byte 0x1\n"
+	  "\t.byte 128-" SZPTR "\n"
+	  "\t.byte " REG_RA "\n"
+	  "\t.byte 1\n"				/* augmentation length */
+#if LJ_64
+	  "\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	  "\t.byte 0xc\n\t.byte " REG_SP "\n\t.byte " SZPTR "\n"
+#else
+	  "\t.byte 0x1b\n"			/* pcrel|sdata4 */
+	  "\t.byte 0xc\n\t.byte 0x5\n\t.byte 0x4\n"  /* esp=5 on 32 bit MACH. */
+#endif
+	  "\t.byte 0x80+" REG_RA "\n\t.byte 0x1\n"
+	  "\t.align " BSZPTR "\n"
+	  "LECIEY:\n\n");
+      fprintf(ctx->fp,
+	  "_lj_vm_ffi_call.eh:\n"
+	  "LSFDEY:\n"
+	  "\t.set L$set$yy,LEFDEY-LASFDEY\n"
+	  "\t.long L$set$yy\n"
+	  "LASFDEY:\n"
+	  "\t.long LASFDEY-EH_frame2\n"
+	  "\t.long _lj_vm_ffi_call-.\n"
+	  "\t.long %d\n"
+	  "\t.byte 0\n"				/* augmentation length */
+#if LJ_64
+	  "\t.byte 0xe\n\t.byte 16\n"		/* def_cfa_offset */
+	  "\t.byte 0x86\n\t.byte 0x2\n"		/* offset rbp */
+	  "\t.byte 0xd\n\t.byte 0x6\n"		/* def_cfa_register rbp */
+	  "\t.byte 0x83\n\t.byte 0x3\n"		/* offset rbx */
+#else
+	  "\t.byte 0xe\n\t.byte 8\n"		/* def_cfa_offset */
+	  "\t.byte 0x84\n\t.byte 0x2\n"		/* offset ebp (4 for MACH-O)*/
+	  "\t.byte 0xd\n\t.byte 0x4\n"		/* def_cfa_register ebp */
+	  "\t.byte 0x83\n\t.byte 0x3\n"		/* offset ebx */
+#endif
+	  "\t.align " BSZPTR "\n"
+	  "LEFDEY:\n\n", fcsize);
+    }
+#endif
+#if !LJ_64
+    fprintf(ctx->fp,
+      "\t.non_lazy_symbol_pointer\n"
+      "L_lj_err_unwind_dwarf$non_lazy_ptr:\n"
+      ".indirect_symbol _lj_err_unwind_dwarf\n"
+      ".long 0\n\n");
+    fprintf(ctx->fp, "\t.section __IMPORT,__jump_table,symbol_stubs,pure_instructions+self_modifying_code,5\n");
+    {
+      const char *const *xn;
+      for (xn = ctx->extnames; *xn; xn++)
+	if (strncmp(*xn, LABEL_PREFIX, sizeof(LABEL_PREFIX)-1))
+	  fprintf(ctx->fp, "L_%s$stub:\n\t.indirect_symbol _%s\n\t.ascii \"\\364\\364\\364\\364\\364\"\n", *xn, *xn);
+    }
+#endif
+    fprintf(ctx->fp, ".subsections_via_symbols\n");
+    }
+    break;
+#endif
+  default:  /* Difficult for other modes. */
+    break;
+  }
+}
+
diff --git a/libs/luajit-cmake/luajit/src/xb1build.bat b/libs/luajit-cmake/luajit/src/xb1build.bat
new file mode 100644
index 0000000..2eb6817
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/xb1build.bat
@@ -0,0 +1,101 @@
+@rem Script to build LuaJIT with the Xbox One SDK.

+@rem Donated to the public domain.

+@rem

+@rem Open a "Visual Studio .NET Command Prompt" (64 bit host compiler)

+@rem Then cd to this directory and run this script.

+

+@if not defined INCLUDE goto :FAIL

+@if not defined DurangoXDK goto :FAIL

+

+@setlocal

+@echo ---- Host compiler ----

+@set LJCOMPILE=cl /nologo /c /MD /O2 /W3 /D_CRT_SECURE_NO_DEPRECATE

+@set LJLINK=link /nologo

+@set LJMT=mt /nologo

+@set DASMDIR=..\dynasm

+@set DASM=%DASMDIR%\dynasm.lua

+@set ALL_LIB=lib_base.c lib_math.c lib_bit.c lib_string.c lib_table.c lib_io.c lib_os.c lib_package.c lib_debug.c lib_jit.c lib_ffi.c lib_buffer.c

+

+%LJCOMPILE% host\minilua.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /out:minilua.exe minilua.obj

+@if errorlevel 1 goto :BAD

+if exist minilua.exe.manifest^

+  %LJMT% -manifest minilua.exe.manifest -outputresource:minilua.exe

+

+@rem Error out for 64 bit host compiler

+@minilua

+@if not errorlevel 8 goto :FAIL

+

+@set DASMFLAGS=-D WIN -D FFI -D P64

+minilua %DASM% -LN %DASMFLAGS% -o host\buildvm_arch.h vm_x64.dasc

+@if errorlevel 1 goto :BAD

+

+%LJCOMPILE% /I "." /I %DASMDIR% /D_DURANGO host\buildvm*.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /out:buildvm.exe buildvm*.obj

+@if errorlevel 1 goto :BAD

+if exist buildvm.exe.manifest^

+  %LJMT% -manifest buildvm.exe.manifest -outputresource:buildvm.exe

+

+buildvm -m peobj -o lj_vm.obj

+@if errorlevel 1 goto :BAD

+buildvm -m bcdef -o lj_bcdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m ffdef -o lj_ffdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m libdef -o lj_libdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m recdef -o lj_recdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m vmdef -o jit\vmdef.lua %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m folddef -o lj_folddef.h lj_opt_fold.c

+@if errorlevel 1 goto :BAD

+

+@echo ---- Cross compiler ----

+

+@set CWD=%cd%

+@call "%DurangoXDK%\xdk\DurangoVars.cmd" XDK

+@cd /D "%CWD%"

+@shift

+

+@set LJCOMPILE="cl" /nologo /c /W3 /GF /Gm- /GR- /GS- /Gy /openmp- /D_CRT_SECURE_NO_DEPRECATE /D_LIB /D_UNICODE /D_DURANGO

+@set LJLIB="lib" /nologo

+

+@if "%1"=="debug" (

+  @shift

+  @set LJCOMPILE=%LJCOMPILE% /Zi /MDd /Od

+  @set LJLINK=%LJLINK% /debug 

+) else (

+  @set LJCOMPILE=%LJCOMPILE% /MD /O2 /DNDEBUG

+)

+

+@if "%1"=="amalg" goto :AMALG

+%LJCOMPILE% /DLUA_BUILD_AS_DLL lj_*.c lib_*.c

+@if errorlevel 1 goto :BAD

+%LJLIB% /OUT:luajit.lib lj_*.obj lib_*.obj

+@if errorlevel 1 goto :BAD

+@goto :NOAMALG

+:AMALG

+%LJCOMPILE% /DLUA_BUILD_AS_DLL ljamalg.c

+@if errorlevel 1 goto :BAD

+%LJLIB% /OUT:luajit.lib ljamalg.obj lj_vm.obj

+@if errorlevel 1 goto :BAD

+:NOAMALG

+

+@del *.obj *.manifest minilua.exe buildvm.exe

+@echo.

+@echo === Successfully built LuaJIT for Xbox One ===

+

+@goto :END

+:BAD

+@echo.

+@echo *******************************************************

+@echo *** Build FAILED -- Please check the error messages ***

+@echo *******************************************************

+@goto :END

+:FAIL

+@echo To run this script you must open a "Visual Studio .NET Command Prompt"

+@echo (64 bit host compiler). The Xbox One SDK must be installed, too.

+:END

diff --git a/libs/luajit-cmake/luajit/src/xedkbuild.bat b/libs/luajit-cmake/luajit/src/xedkbuild.bat
new file mode 100644
index 0000000..37322d0
--- /dev/null
+++ b/libs/luajit-cmake/luajit/src/xedkbuild.bat
@@ -0,0 +1,92 @@
+@rem Script to build LuaJIT with the Xbox 360 SDK.

+@rem Donated to the public domain.

+@rem

+@rem Open a "Visual Studio .NET Command Prompt" (32 bit host compiler)

+@rem Then cd to this directory and run this script.

+

+@if not defined INCLUDE goto :FAIL

+@if not defined XEDK goto :FAIL

+

+@setlocal

+@rem ---- Host compiler ----

+@set LJCOMPILE=cl /nologo /c /MD /O2 /W3 /D_CRT_SECURE_NO_DEPRECATE

+@set LJLINK=link /nologo

+@set LJMT=mt /nologo

+@set DASMDIR=..\dynasm

+@set DASM=%DASMDIR%\dynasm.lua

+@set ALL_LIB=lib_base.c lib_math.c lib_bit.c lib_string.c lib_table.c lib_io.c lib_os.c lib_package.c lib_debug.c lib_jit.c lib_ffi.c lib_buffer.c

+

+%LJCOMPILE% host\minilua.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /out:minilua.exe minilua.obj

+@if errorlevel 1 goto :BAD

+if exist minilua.exe.manifest^

+  %LJMT% -manifest minilua.exe.manifest -outputresource:minilua.exe

+

+@rem Error out for 64 bit host compiler

+@minilua

+@if errorlevel 8 goto :FAIL

+

+@set DASMFLAGS=-D GPR64 -D FRAME32 -D PPE -D SQRT -D DUALNUM

+minilua %DASM% -LN %DASMFLAGS% -o host\buildvm_arch.h vm_ppc.dasc

+@if errorlevel 1 goto :BAD

+

+%LJCOMPILE% /I "." /I %DASMDIR% /D_XBOX_VER=200 /DLUAJIT_TARGET=LUAJIT_ARCH_PPC  host\buildvm*.c

+@if errorlevel 1 goto :BAD

+%LJLINK% /out:buildvm.exe buildvm*.obj

+@if errorlevel 1 goto :BAD

+if exist buildvm.exe.manifest^

+  %LJMT% -manifest buildvm.exe.manifest -outputresource:buildvm.exe

+

+buildvm -m peobj -o lj_vm.obj

+@if errorlevel 1 goto :BAD

+buildvm -m bcdef -o lj_bcdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m ffdef -o lj_ffdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m libdef -o lj_libdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m recdef -o lj_recdef.h %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m vmdef -o jit\vmdef.lua %ALL_LIB%

+@if errorlevel 1 goto :BAD

+buildvm -m folddef -o lj_folddef.h lj_opt_fold.c

+@if errorlevel 1 goto :BAD

+

+@rem ---- Cross compiler ----

+@set LJCOMPILE="%XEDK%\bin\win32\cl" /nologo /c /MT /O2 /W3 /GF /Gm- /GR- /GS- /Gy /openmp- /D_CRT_SECURE_NO_DEPRECATE /DNDEBUG /D_XBOX /D_LIB /DLUAJIT_USE_SYSMALLOC

+@set LJLIB="%XEDK%\bin\win32\lib" /nologo

+@set "INCLUDE=%XEDK%\include\xbox"

+

+@if "%1" neq "debug" goto :NODEBUG

+@shift

+@set "LJCOMPILE=%LJCOMPILE% /Zi"

+:NODEBUG

+@if "%1"=="amalg" goto :AMALG

+%LJCOMPILE% /DLUA_BUILD_AS_DLL lj_*.c lib_*.c

+@if errorlevel 1 goto :BAD

+%LJLIB% /OUT:luajit20.lib lj_*.obj lib_*.obj

+@if errorlevel 1 goto :BAD

+@goto :NOAMALG

+:AMALG

+%LJCOMPILE% /DLUA_BUILD_AS_DLL ljamalg.c

+@if errorlevel 1 goto :BAD

+%LJLIB% /OUT:luajit20.lib ljamalg.obj lj_vm.obj

+@if errorlevel 1 goto :BAD

+:NOAMALG

+

+@del *.obj *.manifest minilua.exe buildvm.exe

+@echo.

+@echo === Successfully built LuaJIT for Xbox 360 ===

+

+@goto :END

+:BAD

+@echo.

+@echo *******************************************************

+@echo *** Build FAILED -- Please check the error messages ***

+@echo *******************************************************

+@goto :END

+:FAIL

+@echo To run this script you must open a "Visual Studio .NET Command Prompt"

+@echo (32 bit host compiler). The Xbox 360 SDK must be installed, too.

+:END