1  /* { dg-do run } */
       2  /* { dg-options "-mavx2 -O2" } */
       3  /* { dg-require-effective-target avx2 } */
       4  
       5  #include "avx2-check.h"
       6  
       7  static void
       8  compute_pmaxsb256 (char *s1, char *s2, char *r)
       9  {
      10    int i;
      11  
      12    for (i = 0; i < 32; i++)
      13      r[i] = s1[i] > s2[i] ? s1[i] : s2[i];
      14  }
      15  
      16  static void
      17  avx2_test (void)
      18  {
      19    union256i_b s1, s2, res;
      20    char res_ref[32];
      21    int i, j, sign = 1;
      22    int fail = 0;
      23  
      24    for (i = 0; i < 10; i++)
      25      {
      26        for (j = 0; j < 32; j++)
      27  	{
      28  	  s1.a[j] = j * i * sign;
      29  	  s2.a[j] = (i + 20) * sign;
      30  	  sign = -sign;
      31  	}
      32  
      33        res.x = _mm256_max_epi8 (s1.x, s2.x);
      34  
      35        compute_pmaxsb256 (s1.a, s2.a, res_ref);
      36  
      37        fail += check_union256i_b (res, res_ref);
      38      }
      39  
      40    if (fail != 0)
      41      abort ();
      42  }