1 /* { dg-do run } */
2 /* { dg-options "-mavx2 -O2" } */
3 /* { dg-require-effective-target avx2 } */
4
5 #include "avx2-check.h"
6
7 static void
compute_pmulhrsw256(short * s1,short * s2,short * r)8 compute_pmulhrsw256 (short *s1, short *s2, short *r)
9 {
10 int i;
11 int t0;
12
13 for (i = 0; i < 16; i++)
14 {
15 t0 = (((int) s1[i] * (int) s2[i]) >> 14) + 1;
16 r[i] = (short) (t0 >> 1);
17 }
18 }
19
20 static void
avx2_test(void)21 avx2_test (void)
22 {
23 union256i_w s1, s2, res;
24 short res_ref[16];
25 int i, j, sign = 1;
26 int fail = 0;
27
28 for (i = 0; i < 10; i++)
29 {
30 for (j = 0; j < 16; j++)
31 {
32 s1.a[j] = i * j * sign;
33 s2.a[j] = (j + 20) * sign;
34 sign = -sign;
35 }
36
37 res.x = _mm256_mulhrs_epi16 (s1.x, s2.x);
38
39 compute_pmulhrsw256 (s1.a, s2.a, res_ref);
40
41 fail += check_union256i_w (res, res_ref);
42 }
43
44 if (fail != 0)
45 abort ();
46 }
47