gcc/testsuite/gcc.target/i386/sse2-init-v8hi-1.c

   1 /* { dg-do run } */
   2 /* { dg-options "-O2 -msse2" } */
   3 /* { dg-require-effective-target sse2 } */
   4
   5 #include "sse2-check.h"
   6
   7 #ifdef DEBUG
   8 #include <stdio.h>
   9 #endif
  10
  11 #include <emmintrin.h>
  12
  13 static void
  14 __attribute__((noinline))
  15 check (__m128i x, unsigned short *v, int j)
  16 {
  17   union
  18     {
  19       __m128i x;
  20       unsigned short i[8];
  21     } u;
  22   unsigned int i;
  23
  24   u.x = x;
  25
  26   for (i = 0; i < sizeof (v) / sizeof (v[0]); i++)
  27     if (i == j)
  28       {
  29         if (v[i] != u.i[i])
  30           {
  31 #ifdef DEBUG
  32             printf ("%i: 0x%x != 0x%x\n", i, v[i], u.i[i]);
  33 #endif
  34             abort ();
  35           }
  36       }
  37     else if (u.i[i] != 0)
  38       {
  39 #ifdef DEBUG
  40         printf ("%i: 0x%x != 0\n", i, u.i[i]);
  41 #endif
  42         abort ();
  43       }
  44 }
  45
  46 static void
  47 __attribute__((noinline))
  48 test (unsigned short *v)
  49 {
  50   __m128i x;
  51
  52   x = _mm_set_epi16 (0, 0, 0, 0, 0, 0, 0, v[0]);
  53   check (x, v, 0);
  54   x = _mm_set_epi16 (0, 0, 0, 0, 0, 0, v[1], 0);
  55   check (x, v, 1);
  56   x = _mm_set_epi16 (0, 0, 0, 0, 0, v[2], 0, 0);
  57   check (x, v, 2);
  58   x = _mm_set_epi16 (0, 0, 0, 0, v[3], 0, 0, 0);
  59   check (x, v, 3);
  60   x = _mm_set_epi16 (0, 0, 0, v[4], 0, 0, 0, 0);
  61   check (x, v, 4);
  62   x = _mm_set_epi16 (0, 0, v[5], 0, 0, 0, 0, 0);
  63   check (x, v, 5);
  64   x = _mm_set_epi16 (0, v[6], 0, 0, 0, 0, 0, 0);
  65   check (x, v, 6);
  66   x = _mm_set_epi16 (v[7], 0, 0, 0, 0, 0, 0, 0);
  67   check (x, v, 7);
  68 }
  69
  70 static void
  71 sse2_test (void)
  72 {
  73   unsigned short v[8]
  74     = { 0x7B5B, 0x5465, 0x7374, 0x5665,
  75         0x6374, 0x6F72, 0x5D53, 0x475D };
  76   test (v);
  77 }