1 /* { dg-do run } */
2 /* { dg-options "-mavx2 -O2" } */
3 /* { dg-require-effective-target avx2 } */
4
5 #include "avx2-check.h"
6
7 void static
avx2_test(void)8 avx2_test (void)
9 {
10 union256i_b u, s1, s2;
11 unsigned char e[32];
12 int i, tmp;
13
14 s1.x = _mm256_set_epi8 (1, 2, 3, 4, 10, 20, 30, 90, 80, 40, 100, 15,
15 98, 25, 98, 7, 88, 44, 33, 22, 11, 98, 76,
16 200, 34, 78, 39, 6, 3, 4, 5, 119);
17
18 s2.x = _mm256_set_epi8 (88, 44, 33, 220, 11, 98, 76, 100, 34, 78, 39,
19 6, 3, 4, 5, 219, 1, 2, 3, 4, 10, 20, 30, 90,
20 80, 40, 100, 15, 98, 25, 98, 7);
21
22 u.x = _mm256_subs_epu8 (s1.x, s2.x);
23
24 for (i = 0; i < 32; i++)
25 {
26 tmp = (unsigned char) s1.a[i] - (unsigned char) s2.a[i];
27
28 if (tmp < 0)
29 tmp = 0;
30
31 e[i] = tmp;
32 }
33
34 if (check_union256i_b (u, e))
35 abort ();
36 }
37