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_scatterdps (__mmask16 m16, int *idx,
      11  		    float *src, int scale, float *r)
      12  {
      13    int i;
      14  
      15    for (i = 0; i < 16; i++)
      16      {
      17        if (m16 & (1 << i))
      18  	*(float *) (((unsigned char *) r) + idx[i] * scale) = src[i];
      19      }
      20  }
      21  
      22  static void
      23  avx512f_test (void)
      24  {
      25    int i;
      26    union512 src;
      27    union512i_d idx;
      28    float res[16] = { 0.0 };
      29    float res_ref[16] = { 0.0 };
      30    __mmask16 m16 = 0xBC5D;
      31  
      32    for (i = 0; i < 16; i++)
      33      {
      34        src.a[i] = 2.718281828459045 * (i + 1) * (i + 2);
      35  
      36        /* About to gather in reverse order,
      37  	 divide by 2 to demonstrate scale */
      38        idx.a[i] = (64 - (i + 1) * 4) >> 1;
      39      }
      40  
      41    _mm512_mask_i32scatter_ps (res, m16, idx.x, src.x, SCALE);
      42    compute_scatterdps (m16, idx.a, src.a, SCALE, res_ref);
      43  
      44    if (checkVf (res, res_ref, 16))
      45      abort ();
      46  
      47    _mm512_i32scatter_ps (res, idx.x, src.x, SCALE);
      48    compute_scatterdps (0xFFFF, idx.a, src.a, SCALE, res_ref);
      49  
      50    if (checkVf (res, res_ref, 16))
      51      abort ();
      52  }