gcc/testsuite/gcc.target/powerpc/sse4_1-phminposuw.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -mvsx -Wno-psabi" } */
   3 /* { dg-require-effective-target vsx_hw } */
   4
   5 #define NO_WARN_X86_INTRINSICS 1
   6 #ifndef CHECK_H
   7 #define CHECK_H "sse4_1-check.h"
   8 #endif
   9
  10 #ifndef TEST
  11 #define TEST sse4_1_test
  12 #endif
  13
  14 #include CHECK_H
  15
  16 #include <smmintrin.h>
  17
  18 #define DIM(a) (sizeof (a) / sizeof (a)[0])
  19
  20 static void
  21 TEST (void)
  22 {
  23   union
  24     {
  25       __m128i x;
  26       unsigned short s[8];
  27     } src[] =
  28     {
  29       { .s = { 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 } },
  30       { .s = { 0x0000, 0xffff, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 } },
  31       { .s = { 0xffff, 0xffff, 0x0000, 0xffff, 0xffff, 0xffff, 0x0000, 0xffff } },
  32       { .s = { 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008 } },
  33       { .s = { 0x0008, 0x0007, 0x0006, 0x0005, 0x0004, 0x0003, 0x0002, 0x0001 } },
  34       { .s = { 0xfff4, 0xfff3, 0xfff2, 0xfff1, 0xfff3, 0xfff1, 0xfff2, 0xfff3 } }
  35     };
  36   unsigned short minVal[DIM (src)];
  37   int minInd[DIM (src)];
  38   unsigned short minValScalar, minIndScalar;
  39   int i, j;
  40   union
  41     {
  42       int si;
  43       unsigned short s[2];
  44     } res;
  45
  46   for (i = 0; i < DIM (src); i++)
  47     {
  48       res.si = _mm_cvtsi128_si32 (_mm_minpos_epu16 (src[i].x));
  49       minVal[i] = res.s[0];
  50       minInd[i] = res.s[1] & 0b111;
  51     }
  52
  53   for (i = 0; i < DIM (src); i++)
  54     {
  55       minValScalar = src[i].s[0];
  56       minIndScalar = 0;
  57
  58       for (j = 1; j < 8; j++)
  59         if (minValScalar > src[i].s[j])
  60           {
  61             minValScalar = src[i].s[j];
  62             minIndScalar = j;
  63           }
  64
  65       if (minValScalar != minVal[i] && minIndScalar != minInd[i])
  66         abort ();
  67     }
  68 }