1/* { dg-do run } */ 2/* { dg-options "-mavx2 -O2" } */ 3/* { dg-require-effective-target avx2 } */ 4 5#include "avx2-check.h" 6 7void static 8avx2_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