gcc/testsuite/gcc.target/i386/avx-vblendvpd-256-1.c

   1 /* { dg-do run } */
   2 /* { dg-require-effective-target avx } */
   3 /* { dg-options "-O2 -mavx" } */
   4
   5 #include "avx-check.h"
   6
   7 #ifndef MASK
   8 #define MASK 6
   9 #endif
  10
  11 #define mask_v(pos) (((MASK >> (pos)) & 1ULL) << 63)
  12
  13 void static
  14 avx_test (void)
  15 {
  16   int i;
  17   union256d u, mask, s1, s2;
  18   long long m[4]={mask_v(0), mask_v(1), mask_v(2), mask_v(3)};
  19   double e [4];
  20
  21   s1.x = _mm256_set_pd (34545, 95567, 23443, 5675);
  22   s2.x = _mm256_set_pd (674, 57897, 93459, 45624);
  23   mask.x = _mm256_set_pd (m[0], m[1], m[2], m[3]);
  24
  25   u.x = _mm256_blendv_pd (s1.x, s2.x, mask.x);
  26
  27   for (i = 0; i < 4; i++)
  28     e[i] = (m[i] & (1ULL << 63)) ? s2.a[i] : s1.a[i];
  29
  30   if (check_union256d (u, e))
  31     abort ();
  32 }