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 #define N 0xec
9
10 static void
compute_pshuflw256(short * s1,unsigned char imm,short * r)11 compute_pshuflw256 (short *s1, unsigned char imm, short *r)
12 {
13 int i;
14
15 for (i = 0; i < 4; i++)
16 {
17 r[i] = s1[(imm >> (2 * i)) & 3];
18 r[i + 8] = s1[((imm >> (2 * i)) & 3) + 8];
19 }
20
21 for (i = 4; i < 8; i++)
22 {
23 r[i] = s1[i];
24 r[i + 8] = s1[i + 8];
25 }
26 }
27
28 void static
avx2_test(void)29 avx2_test (void)
30 {
31 union256i_w s1, res;
32 short res_ref[16];
33 int i, j, sign = 1;
34 int fail = 0;
35
36 for (i = 1; i < 10; i++)
37 {
38 for (j = 0; j < 16; j++)
39 {
40 s1.a[j] = j * i * sign;
41 sign = -sign;
42 }
43
44 res.x = _mm256_shufflelo_epi16 (s1.x, N);
45 compute_pshuflw256 (s1.a, N, res_ref);
46
47 fail += check_union256i_w (res, res_ref);
48 }
49
50 if (fail != 0)
51 abort ();
52 }
53