1/* { dg-do run } */
2/* { dg-require-effective-target avx2 } */
3/* { dg-options "-O2 -mavx2" } */
4
5#include <string.h>
6#include "avx2-check.h"
7
8static void
9compute_i64gatherpd256 (double *src,
10			double *s1,
11			long long int *s2, double *mask, int scale, double *r)
12{
13  int i;
14
15  for (i = 0; i < 4; ++i)
16    if ((((long long *) mask)[i] >> 63) & 1)
17      r[i] = *(double *) (((unsigned char *) s1) + s2[i] * scale);
18    else
19      r[i] = src[i];
20}
21
22void static
23avx2_test (void)
24{
25  int i;
26  union256i_q idx;
27  union256d res, src, mask;
28  double s1[4], res_ref[4] = { 0 };
29
30  for (i = 0; i < 4; ++i)
31    {
32      /* Set some stuff */
33      s1[i] = 2.718281828459045 * (i + 1) * (i + 2);
34
35      /* Set src as something different from s1 */
36      src.a[i] = -s1[i];
37
38      /* Mask out evens */
39      ((long long *) mask.a)[i] = i % 2 ? 0 : -1;
40
41      /* About to gather in reverse order,
42         divide by 2 to demonstrate scale */
43      idx.a[i] = (16 - (i + 1) * 8) >> 1;
44    }
45
46  res.x = _mm256_mask_i64gather_pd (src.x, s1, idx.x, mask.x, 2);
47
48  compute_i64gatherpd256 (src.a, s1, idx.a, mask.a, 2, res_ref);
49
50  if (check_union256d (res, res_ref) != 0)
51    abort ();
52}
53