gcc/testsuite/gcc.target/i386/avx-set-v4df-4.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target avx } */
   3 /* { dg-options "-O2 -mavx" } */
   4
   5 #include "avx-check.h"
   6
   7 static __m256d
   8 __attribute__((noinline))
   9 foo (double x, int i)
  10 {
  11   switch (i)
  12     {
  13     case 3:
  14       return _mm256_set_pd (x, 0, 0, 0);
  15     case 2:
  16       return _mm256_set_pd (0, x, 0, 0);
  17     case 1:
  18       return _mm256_set_pd (0, 0, x, 0);
  19     case 0:
  20       return _mm256_set_pd (0, 0, 0, x);
  21     default:
  22       abort ();
  23     }
  24 }
  25
  26 static void
  27 avx_test (void)
  28 {
  29   double e = -3.234;
  30   double v[4];
  31   union256d u;
  32   int i, j;
  33
  34   for (i = 0; i < ARRAY_SIZE (v); i++)
  35     {
  36       for (j = 0; j < ARRAY_SIZE (v); j++)
  37         v[j] = 0;
  38       v[i] = e;
  39       u.x = foo (e, i);
  40       if (check_union256d (u, v))
  41         abort ();
  42     }
  43 }