gcc/testsuite/gcc.target/i386/avx-vperm2f128-256-2.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 IMM8
   8 #  define IMM8 99
   9 #endif
  10
  11
  12 void static
  13 avx_test ()
  14 {
  15     union256d source1, source2, u;
  16     double  s1[4]={1, 2, 3, 4};
  17     double  s2[4]={5, 6, 7, 8};
  18     double   e[4];
  19
  20     source1.x = _mm256_loadu_pd(s1);
  21     source2.x = _mm256_loadu_pd(s2);
  22     u.x = _mm256_permute2f128_pd(source1.x, source2.x, IMM8);
  23
  24     if(IMM8 & 8) e[0] = e[1] = 0;
  25     else{
  26         e[0] = (IMM8 & 2 ? s2 : s1)[(IMM8 & 1) * 2];
  27         e[1] = (IMM8 & 2 ? s2 : s1)[(IMM8 & 1) * 2 + 1];
  28     }
  29     if(IMM8 & 128) e[3] = e[3] = 0;
  30     else{
  31         unsigned m = (IMM8 >> 4) & 3;
  32         e[2] = (m & 2 ? s2 : s1)[(m & 1) * 2];
  33         e[3] = (m & 2 ? s2 : s1)[(m & 1) * 2 + 1];
  34     }
  35
  36    if (check_union256d (u, e))
  37      abort ();
  38 }
  39