1  /* { dg-do run } */
       2  /* { dg-options "-mavx512f -O2" } */
       3  /* { dg-require-effective-target avx512f } */
       4  
       5  #include "avx512f-check.h"
       6  
       7  #define SCALE 2
       8  
       9  static void
      10  compute_scatterdd (__mmask16 m16, int *idx,
      11  		   int *src, int scale, int *r)
      12  {
      13    int i;
      14  
      15    for (i = 0; i < 16; i++)
      16      {
      17        if (m16 & (1 << i))
      18  	*(int *) (((unsigned char *) r) + idx[i] * scale) = src[i];
      19      }
      20  }
      21  
      22  static void
      23  avx512f_test (void)
      24  {
      25    int i;
      26    union512i_d src, idx;
      27    int res[16] = { 0 };
      28    int res_ref[16] = { 0 };
      29    __mmask16 m16 = 0xBC5D;
      30  
      31    for (i = 0; i < 16; i++)
      32      {
      33        src.a[i] = 1973 * (i + 1) * (i + 2);
      34  
      35        /* About to gather in reverse order,
      36  	 divide by 2 to demonstrate scale */
      37        idx.a[i] = (64 - (i + 1) * 4) >> 1;
      38      }
      39  
      40    _mm512_mask_i32scatter_epi32 (res, m16, idx.x, src.x, SCALE);
      41    compute_scatterdd (m16, idx.a, src.a, SCALE, res_ref);
      42  
      43    if (checkVi (res, res_ref, 16))
      44      abort ();
      45  
      46    _mm512_i32scatter_epi32 (res, idx.x, src.x, SCALE);
      47    compute_scatterdd (0xFFFF, idx.a, src.a, SCALE, res_ref);
      48  
      49    if (checkVi (res, res_ref, 16))
      50      abort ();
      51  }