1 /* { dg-do run } */
2 /* { dg-options "-mavx2 -O2" } */
3 /* { dg-require-effective-target avx2 } */
4
5 #include "avx2-check.h"
6 #include <string.h>
7
8 #define NUM 20
9
10 static void
init_pblendb(char * src1,char * src2,char * mask,int seed)11 init_pblendb (char *src1, char *src2, char *mask, int seed)
12 {
13 int i, sign = 1;
14
15 for (i = 0; i < 32; i++)
16 {
17 src1[i] = (i + seed) * (i + seed) * sign;
18 src2[i] = (i + seed + 20) * sign;
19 sign = -sign;
20
21 if (sign > 0)
22 mask[i] = 1 << 7;
23 else
24 mask[i] = 0;
25 }
26 }
27
28 static void
calc_pblendb(char * src1,char * src2,char * mask,char * dst)29 calc_pblendb (char *src1, char *src2, char *mask, char *dst)
30 {
31 int i;
32
33 memcpy (dst, src1, 32);
34 for (i = 0; i < 32; i++)
35 if (mask[i] & (1 << 7))
36 dst[i] = src2[i];
37 }
38
39 static void
avx2_test(void)40 avx2_test (void)
41 {
42 union256i_b src1, src2, mask, dst;
43 char dst_ref[32];
44 int i;
45
46 for (i = 0; i < NUM; i++)
47 {
48 init_pblendb (src1.a, src2.a, mask.a, i);
49
50 dst.x = _mm256_blendv_epi8 (src1.x, src2.x, mask.x);
51 calc_pblendb (src1.a, src2.a, mask.a, dst_ref);
52
53 if (check_union256i_b (dst, dst_ref))
54 abort ();
55 }
56 }
57