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 20
       9  
      10  static void
      11  init_pblendb (char *src1, char *src2, char *mask, int seed)
      12  {
      13    int i, sign = 1;
      14  
      15    for (i = 0; i < 32; i++)
      16      {
      17        src1[i] = (i + seed) * (i + seed) * sign;
      18        src2[i] = (i + seed + 20) * sign;
      19        sign = -sign;
      20  
      21        if (sign > 0)
      22  	mask[i] = 1 << 7;
      23        else
      24  	mask[i] = 0;
      25      }
      26  }
      27  
      28  static void
      29  calc_pblendb (char *src1, char *src2, char *mask, char *dst)
      30  {
      31    int i;
      32  
      33    memcpy (dst, src1, 32);
      34    for (i = 0; i < 32; i++)
      35      if (mask[i] & (1 << 7))
      36        dst[i] = src2[i];
      37  }
      38  
      39  static void
      40  avx2_test (void)
      41  {
      42    union256i_b src1, src2, mask, dst;
      43    char dst_ref[32];
      44    int i;
      45  
      46    for (i = 0; i < NUM; i++)
      47      {
      48        init_pblendb (src1.a, src2.a, mask.a, i);
      49  
      50        dst.x = _mm256_blendv_epi8 (src1.x, src2.x, mask.x);
      51        calc_pblendb (src1.a, src2.a, mask.a, dst_ref);
      52  
      53        if (check_union256i_b (dst, dst_ref))
      54  	abort ();
      55      }
      56  }