gcc/testsuite/gcc.target/i386/avx-vperm2f128-256-3.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 100
   9 #endif
  10
  11 void static
  12 avx_test ()
  13 {
  14     union256i_q source1, source2, u;
  15     long long  s1[4]={1, 2, 3, 4};
  16     long long  s2[4]={5, 6, 7, 8};
  17     long long   e[4];
  18
  19     source1.x = _mm256_loadu_si256((__m256i*)s1);
  20     source2.x = _mm256_loadu_si256((__m256i*)s2);
  21     u.x = _mm256_permute2f128_si256(source1.x, source2.x, IMM8);
  22
  23     if(IMM8 & 8) e[0] = e[1] = 0;
  24     else{
  25         e[0] = (IMM8 & 2 ? s2 : s1)[(IMM8 & 1) * 2];
  26         e[1] = (IMM8 & 2 ? s2 : s1)[(IMM8 & 1) * 2 + 1];
  27     }
  28     if(IMM8 & 128) e[3] = e[3] = 0;
  29     else{
  30         unsigned m = (IMM8 >> 4) & 3;
  31         e[2] = (m & 2 ? s2 : s1)[(m & 1) * 2];
  32         e[3] = (m & 2 ? s2 : s1)[(m & 1) * 2 + 1];
  33     }
  34
  35    if (check_union256i_q (u, e))
  36      abort ();
  37 }