Vc  1.2.0
SIMD Vector Classes for C++
set.h
1 /* This file is part of the Vc library. {{{
2 Copyright © 2013-2015 Matthias Kretz <kretz@kde.org>
3 All rights reserved.
4 
5 Redistribution and use in source and binary forms, with or without
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27 }}}*/
28 
29 #ifndef VC_COMMON_SET_H_
30 #define VC_COMMON_SET_H_
31 
32 #include "macros.h"
33 namespace Vc_VERSIONED_NAMESPACE
34 {
35 namespace
36 {
37  static Vc_INTRINSIC Vc_CONST __m128i set(unsigned short x0, unsigned short x1, unsigned short x2, unsigned short x3,
38  unsigned short x4, unsigned short x5, unsigned short x6, unsigned short x7)
39  {
40 #if defined(Vc_GNU_ASM)
41 #if 0 // defined(__x86_64__)
42  // it appears that the 32bit variant is always faster
43  __m128i r;
44  unsigned long long tmp0 = x3; tmp0 = (tmp0 << 16) | x2;
45  unsigned long long tmp1 = x1; tmp1 = (tmp1 << 16) | x0;
46  asm("vmovq %1,%0" : "=x"(r) : "r"((tmp0 << 32) | tmp1));
47  unsigned long long tmp2 = x7; tmp2 = (tmp2 << 16) | x6;
48  unsigned long long tmp3 = x5; tmp3 = (tmp3 << 16) | x4;
49  asm("vpinsrq $1,%1,%0,%0" : "+x"(r) : "r"((tmp2 << 32) | tmp3));
50  return r;
51 #elif defined(Vc_USE_VEX_CODING)
52  __m128i r0, r1;
53  unsigned int tmp0 = x1; tmp0 = (tmp0 << 16) | x0;
54  unsigned int tmp1 = x3; tmp1 = (tmp1 << 16) | x2;
55  unsigned int tmp2 = x5; tmp2 = (tmp2 << 16) | x4;
56  unsigned int tmp3 = x7; tmp3 = (tmp3 << 16) | x6;
57  asm("vmovd %1,%0" : "=x"(r0) : "r"(tmp0));
58  asm("vpinsrd $1,%1,%0,%0" : "+x"(r0) : "r"(tmp1));
59  asm("vmovd %1,%0" : "=x"(r1) : "r"(tmp2));
60  asm("vpinsrd $1,%1,%0,%0" : "+x"(r1) : "r"(tmp3));
61  asm("vpunpcklqdq %1,%0,%0" : "+x"(r0) : "x"(r1));
62  return r0;
63 #else
64  __m128i r0, r1;
65  unsigned int tmp0 = x1; tmp0 = (tmp0 << 16) | x0;
66  unsigned int tmp1 = x3; tmp1 = (tmp1 << 16) | x2;
67  unsigned int tmp2 = x5; tmp2 = (tmp2 << 16) | x4;
68  unsigned int tmp3 = x7; tmp3 = (tmp3 << 16) | x6;
69  asm("movd %1,%0" : "=x"(r0) : "r"(tmp0));
70  asm("pinsrd $1,%1,%0" : "+x"(r0) : "r"(tmp1));
71  asm("movd %1,%0" : "=x"(r1) : "r"(tmp2));
72  asm("pinsrd $1,%1,%0" : "+x"(r1) : "r"(tmp3));
73  asm("punpcklqdq %1,%0" : "+x"(r0) : "x"(r1));
74  return r0;
75 #endif
76 #else
77  unsigned int tmp0 = x1; tmp0 = (tmp0 << 16) | x0;
78  unsigned int tmp1 = x3; tmp1 = (tmp1 << 16) | x2;
79  unsigned int tmp2 = x5; tmp2 = (tmp2 << 16) | x4;
80  unsigned int tmp3 = x7; tmp3 = (tmp3 << 16) | x6;
81  return _mm_setr_epi32(tmp0, tmp1, tmp2, tmp3);
82 #endif
83  }
84  static Vc_INTRINSIC Vc_CONST __m128i set(short x0, short x1, short x2, short x3, short x4, short x5, short x6, short x7)
85  {
86  return set(static_cast<unsigned short>(x0), static_cast<unsigned short>(x1), static_cast<unsigned short>(x2),
87  static_cast<unsigned short>(x3), static_cast<unsigned short>(x4), static_cast<unsigned short>(x5),
88  static_cast<unsigned short>(x6), static_cast<unsigned short>(x7));
89  }
90 } // anonymous namespace
91 } // namespace Vc
92 
93 #endif // VC_COMMON_SET_H_