1  /* { dg-do run } */
       2  /* { dg-require-effective-target avx } */
       3  /* { dg-options "-O2 -mavx" } */
       4  
       5  #include "avx-check.h"
       6  
       7  #define CONTROL 0xCC
       8  
       9  void static
      10  avx_test (void)
      11  {
      12    union256 u, s1, s2;
      13    float e [8];
      14  
      15    s1.x = _mm256_set_ps (1, 2, 3, 4, 5, 6, 7, 8);
      16    s2.x = _mm256_set_ps (9, 10, 11, 12, 13, 14, 15, 16);
      17    u.x = _mm256_permute2f128_ps (s1.x, s2.x, CONTROL);
      18  
      19    switch (CONTROL & 0x3)
      20      {
      21        case 0:
      22          __builtin_memcpy (e, s1.a, 16);
      23          break;
      24        case 1: 
      25          __builtin_memcpy (e, s1.a+4, 16);
      26          break;
      27        case 2:
      28          __builtin_memcpy (e, s2.a, 16);
      29          break;
      30        case 3:
      31          __builtin_memcpy (e, s2.a+4, 16);
      32          break;
      33        default:
      34          abort ();
      35      }
      36  
      37   switch ((CONTROL & 0xc)>>2)
      38      {
      39        case 0:
      40          __builtin_memcpy (e+4, s1.a, 16);
      41          break;
      42        case 1: 
      43          __builtin_memcpy (e+4, s1.a+4, 16);
      44          break;
      45        case 2:
      46          __builtin_memcpy (e+4, s2.a, 16);
      47          break;
      48        case 3:
      49          __builtin_memcpy (e+4, s2.a+4, 16);
      50          break;
      51        default:
      52          abort ();
      53      }
      54  
      55    if (CONTROL & (1<<3))
      56      __builtin_memset (e, 0, 16);
      57  
      58    if (CONTROL & (1<<7))
      59      __builtin_memset (e+4, 0, 16);
      60  
      61    if (check_union256 (u, e))
      62      abort ();
      63  }