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_i32gatherps (float *s1, int *s2, int scale, float *r)
10{
11  int i;
12
13  for (i = 0; i < 4; ++i)
14    r[i] = *(float *) (((unsigned char *) s1) + s2[i] * scale);
15}
16
17void static
18avx2_test (void)
19{
20  int i;
21  union128i_d idx;
22  union128 res;
23  float s1[4], res_ref[4] = { 0 };
24
25  for (i = 0; i < 4; ++i)
26    {
27      /* Set some stuff */
28      s1[i] = 2.718281828459045 * (i + 1) * (i + 2);
29
30      /* About to gather in reverse order,
31         divide by 2 to demonstrate scale */
32      idx.a[i] = (16 - (i + 1) * 4) >> 1;
33    }
34
35  res.x = _mm_i32gather_ps (s1, idx.x, 2);
36
37  compute_i32gatherps (s1, idx.a, 2, res_ref);
38
39  if (check_union128 (res, res_ref) != 0)
40    abort ();
41}
42