1  /* { dg-do run } */
       2  /* { dg-options "-O2 -mavx512bw" } */
       3  /* { dg-require-effective-target avx512bw } */
       4  
       5  #define AVX512BW
       6  #include "avx512f-helper.h"
       7  
       8  #define SIZE (AVX512F_LEN / 8)
       9  #include "avx512f-mask-type.h"
      10  
      11  void
      12  CALC (unsigned char *r, unsigned char *s1, unsigned char *s2)
      13  {
      14    int i;
      15    for (i = 0; i < SIZE; i++)
      16      {
      17        int tmp = (int)s1[i] - (int)s2[i];
      18        if (tmp > 0xFF) tmp = 0xFF;
      19        if (tmp < 0) tmp = 0;
      20        r[i] = (unsigned char)tmp;
      21      }
      22  }
      23  
      24  void
      25  TEST (void)
      26  {
      27    int i;
      28    UNION_TYPE (AVX512F_LEN, i_b) res1, res2, res3, src1, src2;
      29    MASK_TYPE mask = MASK_VALUE;
      30    unsigned char res_ref[SIZE];
      31  
      32    for (i = 0; i < SIZE; i++)
      33      {
      34        src1.a[i] = 2 + 7 * i % 291;
      35        src2.a[i] = 3 + 11 * (i % 377) * i;
      36      }
      37    for (i = 0; i < SIZE; i++)
      38      res2.a[i] = DEFAULT_VALUE;
      39  
      40    res1.x = INTRINSIC (_subs_epu8) (src1.x, src2.x);
      41    res2.x = INTRINSIC (_mask_subs_epu8) (res2.x, mask, src1.x, src2.x);
      42    res3.x = INTRINSIC (_maskz_subs_epu8) (mask, src1.x, src2.x);
      43  
      44    CALC (res_ref, src1.a, src2.a);
      45  
      46    if (UNION_CHECK (AVX512F_LEN, i_b) (res1, res_ref))
      47      abort ();
      48  
      49    MASK_MERGE (i_b) (res_ref, mask, SIZE);
      50    if (UNION_CHECK (AVX512F_LEN, i_b) (res2, res_ref))
      51      abort ();
      52  
      53    MASK_ZERO (i_b) (res_ref, mask, SIZE);
      54    if (UNION_CHECK (AVX512F_LEN, i_b) (res3, res_ref))
      55      abort ();
      56  }