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_i32gatherps256 (float *src, 10 float *s1, int *s2, float *mask, int scale, float *r) 11{ 12 int i; 13 14 for (i = 0; i < 8; ++i) 15 if ((((int *) mask)[i] >> 31) & 1) 16 r[i] = *(float *) (((unsigned char *) s1) + s2[i] * scale); 17 else 18 r[i] = src[i]; 19} 20 21void static 22avx2_test (void) 23{ 24 int i; 25 union256i_d idx; 26 union256 res, src, mask; 27 float s1[8], res_ref[8] = { 0 }; 28 29 for (i = 0; i < 8; ++i) 30 { 31 /* Set some stuff */ 32 s1[i] = 2.718281828459045 * (i + 1) * (i + 2); 33 34 /* Set src as something different from s1 */ 35 src.a[i] = -s1[i]; 36 37 /* Mask out evens */ 38 ((int *) mask.a)[i] = i % 2 ? 0 : -1; 39 40 /* About to gather in reverse order, 41 divide by 2 to demonstrate scale */ 42 idx.a[i] = (32 - (i + 1) * 4) >> 1; 43 } 44 45 res.x = _mm256_mask_i32gather_ps (src.x, s1, idx.x, mask.x, 2); 46 47 compute_i32gatherps256 (src.a, s1, idx.a, mask.a, 2, res_ref); 48 49 if (check_union256 (res, res_ref) != 0) 50 abort (); 51} 52