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  }