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_pshufb256(char * s1,char * s2,char * r)9 compute_pshufb256 (char *s1, char *s2, char *r)
10 {
11 int i;
12 char select;
13
14 for (i = 0; i < 16; i++)
15 {
16 select = s2[i];
17 if (select & 0x80)
18 r[i] = 0;
19 else
20 r[i] = s1[select & 0xf];
21
22 select = s2[i + 16];
23 if (select & 0x80)
24 r[i + 16] = 0;
25 else
26 r[i + 16] = s1[16 + (select & 0xf)];
27 }
28 }
29
30 void static
avx2_test(void)31 avx2_test (void)
32 {
33 union256i_b s1, s2, res;
34 char res_ref[32];
35 int i, j;
36 int fail = 0;
37
38 for (i = 0; i < 10; i++)
39 {
40 for (j = 0; j < 32; j++)
41 {
42 s1.a[j] = j * i;
43 s2.a[j] = j + 20;
44 }
45
46 res.x = _mm256_shuffle_epi8 (s1.x, s2.x);
47 compute_pshufb256 (s1.a, s2.a, res_ref);
48
49 fail += check_union256i_b (res, res_ref);
50 }
51
52 if (fail != 0)
53 abort ();
54 }
55