1 files changed, 412 insertions, 0 deletions
diff --git a/libs/pixman-0.40.0/pixman/loongson-mmintrin.h b/libs/pixman-0.40.0/pixman/loongson-mmintrin.h
new file mode 100644
index 0000000..0e79e86
--- /dev/null
+++ b/libs/pixman-0.40.0/pixman/loongson-mmintrin.h
@@ -0,0 +1,412 @@
+/* The gcc-provided loongson intrinsic functions are way too fucking broken
+ * to be of any use, otherwise I'd use them.
+ *
+ * - The hardware instructions are very similar to MMX or iwMMXt. Certainly
+ *   close enough that they could have implemented the _mm_*-style intrinsic
+ *   interface and had a ton of optimized code available to them. Instead they
+ *   implemented something much, much worse.
+ *
+ * - pshuf takes a dead first argument, causing extra instructions to be
+ *   generated.
+ *
+ * - There are no 64-bit shift or logical intrinsics, which means you have
+ *   to implement them with inline assembly, but this is a nightmare because
+ *   gcc doesn't understand that the integer vector datatypes are actually in
+ *   floating-point registers, so you end up with braindead code like
+ *
+ *	punpcklwd	$f9,$f9,$f5
+ *	    dmtc1	v0,$f8
+ *	punpcklwd	$f19,$f19,$f5
+ *	    dmfc1	t9,$f9
+ *	    dmtc1	v0,$f9
+ *	    dmtc1	t9,$f20
+ *	    dmfc1	s0,$f19
+ *	punpcklbh	$f20,$f20,$f2
+ *
+ *   where crap just gets copied back and forth between integer and floating-
+ *   point registers ad nauseum.
+ *
+ * Instead of trying to workaround the problems from these crap intrinsics, I
+ * just implement the _mm_* intrinsics needed for pixman-mmx.c using inline
+ * assembly.
+ */
+
+#include <stdint.h>
+
+/* vectors are stored in 64-bit floating-point registers */
+typedef double __m64;
+/* having a 32-bit datatype allows us to use 32-bit loads in places like load8888 */
+typedef float  __m32;
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_setzero_si64 (void)
+{
+	return 0.0;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_add_pi16 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("paddh %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_add_pi32 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("paddw %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_adds_pu16 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("paddush %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_adds_pu8 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("paddusb %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_and_si64 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("and %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_cmpeq_pi32 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("pcmpeqw %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline void __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_empty (void)
+{
+
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_madd_pi16 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("pmaddhw %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_mulhi_pu16 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("pmulhuh %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_mullo_pi16 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("pmullh %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_or_si64 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("or %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_packs_pu16 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("packushb %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_packs_pi32 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("packsswh %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+#define _MM_SHUFFLE(fp3,fp2,fp1,fp0) \
+ (((fp3) << 6) | ((fp2) << 4) | ((fp1) << 2) | (fp0))
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_set_pi16 (uint16_t __w3, uint16_t __w2, uint16_t __w1, uint16_t __w0)
+{
+	if (__builtin_constant_p (__w3) &&
+	    __builtin_constant_p (__w2) &&
+	    __builtin_constant_p (__w1) &&
+	    __builtin_constant_p (__w0))
+	{
+		uint64_t val = ((uint64_t)__w3 << 48)
+			     | ((uint64_t)__w2 << 32)
+			     | ((uint64_t)__w1 << 16)
+			     | ((uint64_t)__w0 <<  0);
+		return *(__m64 *)&val;
+	}
+	else if (__w3 == __w2 && __w2 == __w1 && __w1 == __w0)
+	{
+		/* TODO: handle other cases */
+		uint64_t val = __w3;
+		uint64_t imm = _MM_SHUFFLE (0, 0, 0, 0);
+		__m64 ret;
+		asm("pshufh %0, %1, %2\n\t"
+		    : "=f" (ret)
+		    : "f" (*(__m64 *)&val), "f" (*(__m64 *)&imm)
+		);
+		return ret;
+	} else {
+		uint64_t val = ((uint64_t)__w3 << 48)
+			     | ((uint64_t)__w2 << 32)
+			     | ((uint64_t)__w1 << 16)
+			     | ((uint64_t)__w0 <<  0);
+		return *(__m64 *)&val;
+	}
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_set_pi32 (unsigned __i1, unsigned __i0)
+{
+	if (__builtin_constant_p (__i1) &&
+	    __builtin_constant_p (__i0))
+	{
+		uint64_t val = ((uint64_t)__i1 << 32)
+			     | ((uint64_t)__i0 <<  0);
+		return *(__m64 *)&val;
+	}
+	else if (__i1 == __i0)
+	{
+		uint64_t imm = _MM_SHUFFLE (1, 0, 1, 0);
+		__m64 ret;
+		asm("pshufh %0, %1, %2\n\t"
+		    : "=f" (ret)
+		    : "f" (*(__m32 *)&__i1), "f" (*(__m64 *)&imm)
+		);
+		return ret;
+	} else {
+		uint64_t val = ((uint64_t)__i1 << 32)
+			     | ((uint64_t)__i0 <<  0);
+		return *(__m64 *)&val;
+	}
+}
+#undef _MM_SHUFFLE
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_shuffle_pi16 (__m64 __m, int64_t __n)
+{
+	__m64 ret;
+	asm("pshufh %0, %1, %2\n\t"
+	    : "=f" (ret)
+	    : "f" (__m), "f" (*(__m64 *)&__n)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_slli_pi16 (__m64 __m, int64_t __count)
+{
+	__m64 ret;
+	asm("psllh  %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m), "f" (*(__m64 *)&__count)
+	);
+	return ret;
+}
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_slli_si64 (__m64 __m, int64_t __count)
+{
+	__m64 ret;
+	asm("dsll  %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m), "f" (*(__m64 *)&__count)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_srli_pi16 (__m64 __m, int64_t __count)
+{
+	__m64 ret;
+	asm("psrlh %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m), "f" (*(__m64 *)&__count)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_srli_pi32 (__m64 __m, int64_t __count)
+{
+	__m64 ret;
+	asm("psrlw %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m), "f" (*(__m64 *)&__count)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_srli_si64 (__m64 __m, int64_t __count)
+{
+	__m64 ret;
+	asm("dsrl  %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m), "f" (*(__m64 *)&__count)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_sub_pi16 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("psubh %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_unpackhi_pi8 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("punpckhbh %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_unpackhi_pi16 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("punpckhhw %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_unpacklo_pi8 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("punpcklbh %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+/* Since punpcklbh doesn't care about the high 32-bits, we use the __m32 datatype which
+ * allows load8888 to use 32-bit loads */
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_unpacklo_pi8_f (__m32 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("punpcklbh %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_unpacklo_pi16 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("punpcklhw %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_xor_si64 (__m64 __m1, __m64 __m2)
+{
+	__m64 ret;
+	asm("xor %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+loongson_extract_pi16 (__m64 __m, int64_t __pos)
+{
+	__m64 ret;
+	asm("pextrh %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m), "f" (*(__m64 *)&__pos)
+	);
+	return ret;
+}
+
+extern __inline __m64 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+loongson_insert_pi16 (__m64 __m1, __m64 __m2, int64_t __pos)
+{
+	__m64 ret;
+	asm("pinsrh_%3 %0, %1, %2\n\t"
+	   : "=f" (ret)
+	   : "f" (__m1), "f" (__m2), "i" (__pos)
+	);
+	return ret;
+}