1  /* { dg-do run } */
       2  /* { dg-options "-mavx2 -O2" } */
       3  /* { dg-require-effective-target avx2 } */
       4  
       5  #include "avx2-check.h"
       6  #include <string.h>
       7  
       8  #define NUM 10
       9  
      10  static void
      11  init_permd (int *src1, int *src2, int seed)
      12  {
      13    int i, sign = 1;
      14  
      15    for (i = 0; i < 8; i++)
      16      {
      17        src1[i] = (i + seed) * (i + seed) * sign;
      18        src2[i] = (i + seed + 20) * sign;
      19        sign = -sign;
      20      }
      21  }
      22  
      23  static void
      24  calc_permd (int *src1, int *src2, int *dst)
      25  {
      26    int i;
      27    unsigned temp;
      28  
      29    memcpy (dst, src1, 32);
      30    for (i = 0; i < 8; i++)
      31      {
      32        temp = src2[i];
      33        dst[i] = src1[temp & 7];
      34      }
      35  }
      36  
      37  static void
      38  avx2_test (void)
      39  {
      40    union256i_d src1, src2, dst;
      41    int dst_ref[8];
      42    int i;
      43  
      44    for (i = 0; i < NUM; i++)
      45      {
      46        init_permd (src1.a, src2.a, i);
      47  
      48        dst.x = _mm256_permutevar8x32_epi32 (src1.x, src2.x);
      49        calc_permd (src1.a, src2.a, dst_ref);
      50  
      51        if (check_union256i_d (dst, dst_ref))
      52  	abort ();
      53      }
      54  }