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 
8 static void
compute_i64gatherpd(long long * s1,long long * s2,int scale,long long * r)9 compute_i64gatherpd (long long *s1, long long *s2, int scale, long long *r)
10 {
11   long long i;
12 
13   for (i = 0; i < 2; ++i)
14     r[i] = *(long long *) (((unsigned char *) s1) + s2[i] * scale);
15 }
16 
17 void static
avx2_test(void)18 avx2_test (void)
19 {
20   long long i;
21   union128i_q idx;
22   union128i_q res;
23   long long s1[2], res_ref[2] = { 0 };
24 
25   for (i = 0; i < 2; ++i)
26     {
27       /* Set some stuff */
28       s1[i] = 1983 * (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) * 8) >> 1;
33     }
34 
35   res.x = _mm_i64gather_epi64 ((long long int *) s1, idx.x, 2);
36 
37   compute_i64gatherpd (s1, idx.a, 2, res_ref);
38 
39   if (check_union128i_q (res, res_ref) != 0)
40     abort ();
41 }
42