1/* { dg-do run } */ 2/* { dg-options "-mavx512f -O2" } */ 3/* { dg-require-effective-target avx512f } */ 4 5#include "avx512f-check.h" 6 7#define SCALE 2 8 9static void 10compute_gatherdd (int *res, __mmask16 m16, int *idx, 11 int *src, int scale, int *r) 12{ 13 int i; 14 15 for (i = 0; i < 16; i++) 16 { 17 if (m16 & (1 << i)) 18 r[i] = *(int *) (((unsigned char *) src) + idx[i] * scale); 19 else 20 r[i] = res[i]; 21 } 22} 23 24static void 25avx512f_test (void) 26{ 27 int i; 28 union512i_d idx, res; 29 int src[16]; 30 int res_ref[16]; 31 __mmask16 m16 = 0xBC5D; 32 33 for (i = 0; i < 16; i++) 34 { 35 src[i] = 1973 * (i + 1) * (i + 2); 36 37 /* About to gather in reverse order, 38 divide by 2 to demonstrate scale */ 39 idx.a[i] = (64 - (i + 1) * 4) >> 1; 40 } 41 42 res.x = _mm512_mask_i32gather_epi32 (res.x, m16, idx.x, src, SCALE); 43 compute_gatherdd (res.a, m16, idx.a, src, SCALE, res_ref); 44 45 if (check_union512i_d (res, res_ref)) 46 abort (); 47 48 res.x = _mm512_i32gather_epi32 (idx.x, src, SCALE); 49 compute_gatherdd (res.a, 0xFFFF, idx.a, src, SCALE, res_ref); 50 51 if (check_union512i_d (res, res_ref)) 52 abort (); 53} 54