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_i32gatherpd256(long long * src,long long * s1,int * s2,long long * mask,int scale,long long * r)9 compute_i32gatherpd256 (long long *src,
10 long long *s1,
11 int *s2, long long *mask, int scale, long long *r)
12 {
13 long long i;
14
15 for (i = 0; i < 4; ++i)
16 if ((mask[i] >> 63) & 1)
17 r[i] = *(long long *) (((unsigned char *) s1) + s2[i] * scale);
18 else
19 r[i] = src[i];
20 }
21
22 void static
avx2_test(void)23 avx2_test (void)
24 {
25 long long i;
26 union128i_d idx;
27 union256i_q res, src, mask;
28 long long s1[4], res_ref[4] = { 0 };
29
30 for (i = 0; i < 4; ++i)
31 {
32 /* Set some stuff */
33 s1[i] = 1983 * (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 mask.a[i] = i % 2 ? 0 : -1;
40
41 /* About to gather in reverse order, divide by 2
42 to demonstrate scale */
43 idx.a[i] = (16 - (i + 1) * 8) >> 1;
44 }
45
46 res.x = _mm256_mask_i32gather_epi64 (src.x,
47 (long long int *) s1,
48 idx.x, mask.x, 2);
49
50 compute_i32gatherpd256 (src.a, s1, idx.a, mask.a, 2, res_ref);
51
52 if (check_union256i_q (res, res_ref) != 0)
53 abort ();
54 }
55