u_sse.h revision 4a49301e 
1/**************************************************************************
2 *
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
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14 * The above copyright notice and this permission notice (including the
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27
28/**
29 * @file
30 * SSE intrinsics portability header.
31 *
32 * Although the SSE intrinsics are support by all modern x86 and x86-64
33 * compilers, there are some intrisincs missing in some implementations
34 * (especially older MSVC versions). This header abstracts that away.
35 */
36
37#ifndef U_SSE_H_
38#define U_SSE_H_
39
40#include "pipe/p_config.h"
41
42#if defined(PIPE_ARCH_SSE)
43
44#include <xmmintrin.h>
45#include <emmintrin.h>
46
47
48/* MSVC before VC8 does not support the _mm_castxxx_yyy */
49#if defined(_MSC_VER) && _MSC_VER < 1500
50
51union __declspec(align(16)) m128_types {
52   __m128 m128;
53   __m128i m128i;
54   __m128d m128d;
55};
56
57static __inline __m128
58_mm_castsi128_ps(__m128i a)
59{
60   union m128_types u;
61   u.m128i = a;
62   return u.m128;
63}
64
65static __inline __m128i
66_mm_castps_si128(__m128 a)
67{
68   union m128_types u;
69   u.m128 = a;
70   return u.m128i;
71}
72
73#endif /* defined(_MSC_VER) && _MSC_VER < 1500 */
74
75#endif /* PIPE_ARCH_X86 || PIPE_ARCH_X86_64 */
76
77#endif /* U_SSE_H_ */
78