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_i64gatherpd (double *s1, long long *s2, int scale, double *r)
10{
11  int i;
12
13  for (i = 0; i < 2; ++i)
14    r[i] = *(double *) (((unsigned char *) s1) + s2[i] * scale);
15}
16
17void static
18avx2_test (void)
19{
20  int i;
21  union128i_q idx;
22  union128d res;
23  double s1[2], res_ref[2] = { 0 };
24
25  for (i = 0; i < 2; ++i)
26    {
27      /* Set some stuff */
28      s1[i] = 2.718281828459045 * (i + 1) * (i + 2);
29
30      /* About to gather in reverse order, divide by 2 to demonstrate scale */
31      idx.a[i] = (16 - (i + 1) * 8) >> 1;
32    }
33
34  res.x = _mm_i64gather_pd (s1, idx.x, 2);
35
36  compute_i64gatherpd (s1, idx.a, 2, res_ref);
37
38  if (check_union128d (res, res_ref) != 0)
39    abort ();
40}
41