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 8static void 9compute_sadbw256 (unsigned char *s1, unsigned char *s2, unsigned short *r) 10{ 11 int i; 12 unsigned char tmp[32]; 13 14 for (i = 0; i < 32; i++) 15 tmp[i] = s1[i] > s2[i] ? s1[i] - s2[i] : s2[i] - s1[i]; 16 17 memset (r, 0, 32); 18 19 for (i = 0; i < 8; i++) 20 r[0] += tmp[i]; 21 22 for (i = 8; i < 16; i++) 23 r[4] += tmp[i]; 24 25 for (i = 16; i < 24; i++) 26 r[8] += tmp[i]; 27 28 for (i = 24; i < 32; i++) 29 r[12] += tmp[i]; 30} 31 32void static 33avx2_test (void) 34{ 35 union256i_b s1, s2; 36 union256i_w res; 37 unsigned short res_ref[16]; 38 int i, j; 39 int fail = 0; 40 41 for (i = 0; i < 10; i++) 42 { 43 for (j = 0; j < 32; j++) 44 { 45 s1.a[j] = j * i; 46 s2.a[j] = j + 20; 47 } 48 49 res.x = _mm256_sad_epu8 (s1.x, s2.x);; 50 compute_sadbw256 (s1.a, s2.a, res_ref); 51 52 fail += check_union256i_w (res, res_ref); 53 } 54 55 if (fail != 0) 56 abort (); 57} 58