| /* { dg-do run } */ |
| /* { dg-require-effective-target avx2 } */ |
| /* { dg-options "-O2 -mavx2" } */ |
| |
| #include <string.h> |
| #include "avx2-check.h" |
| |
| static void |
| compute_pshufb256 (char *s1, char *s2, char *r) |
| { |
| int i; |
| char select; |
| |
| for (i = 0; i < 16; i++) |
| { |
| select = s2[i]; |
| if (select & 0x80) |
| r[i] = 0; |
| else |
| r[i] = s1[select & 0xf]; |
| |
| select = s2[i + 16]; |
| if (select & 0x80) |
| r[i + 16] = 0; |
| else |
| r[i + 16] = s1[16 + (select & 0xf)]; |
| } |
| } |
| |
| void static |
| avx2_test (void) |
| { |
| union256i_b s1, s2, res; |
| char res_ref[32]; |
| int i, j; |
| int fail = 0; |
| |
| for (i = 0; i < 10; i++) |
| { |
| for (j = 0; j < 32; j++) |
| { |
| s1.a[j] = j * i; |
| s2.a[j] = j + 20; |
| } |
| |
| res.x = _mm256_shuffle_epi8 (s1.x, s2.x); |
| compute_pshufb256 (s1.a, s2.a, res_ref); |
| |
| fail += check_union256i_b (res, res_ref); |
| } |
| |
| if (fail != 0) |
| abort (); |
| } |