1  /* { dg-do run } */
       2  /* { dg-require-effective-target avx2 } */
       3  /* { dg-options "-O2 -mavx2" } */
       4  
       5  #include <string.h>
       6  #include "avx2-check.h"
       7  
       8  #define N 0xec
       9  
      10  static void
      11  compute_pshufd256 (int *s1, unsigned char imm, int *r)
      12  {
      13    int i;
      14  
      15    for (i = 0; i < 4; i++)
      16      r[i] = s1[((N & (0x3 << (2 * i))) >> (2 * i))];
      17  
      18    for (i = 0; i < 4; i++)
      19      r[i + 4] = s1[((N & (0x3 << (2 * i))) >> (2 * i)) + 4];
      20  }
      21  
      22  void static
      23  avx2_test (void)
      24  {
      25    union256i_d s1, res;
      26    int res_ref[8];
      27    int i, j, sign = 1;
      28    int fail = 0;
      29  
      30    for (i = 0; i < 10; i++)
      31      {
      32        for (j = 0; j < 8; j++)
      33  	{
      34  	  s1.a[j] = j * i * sign;
      35  	  sign = -sign;
      36  	}
      37  
      38        res.x = _mm256_shuffle_epi32 (s1.x, N);
      39        compute_pshufd256 (s1.a, N, res_ref);
      40  
      41        fail += check_union256i_d (res, res_ref);
      42      }
      43  
      44    if (fail != 0)
      45      abort ();
      46  }