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_i64gatherpd (double *src, 10 double *s1, 11 long long int *s2, double *mask, int scale, double *r) 12{ 13 int i; 14 15 for (i = 0; i < 2; ++i) 16 if ((((long long *) mask)[i] >> 63) & 1) 17 r[i] = *(double *) (((unsigned char *) s1) + s2[i] * scale); 18 else 19 r[i] = src[i]; 20} 21 22void static 23avx2_test (void) 24{ 25 int i; 26 union128i_q idx; 27 union128d res, src, mask; 28 double s1[2], res_ref[2] = { 0, 0 }; 29 30 for (i = 0; i < 2; ++i) 31 { 32 /* Set some stuff */ 33 s1[i] = 2.718281828459045 * (i + 1) * (i + 2); 34 35 /* Set src as something different from s1 */ 36 src.a[i] = -s1[i]; 37 38 /* Mask out evens */ 39 ((long long *) mask.a)[i] = i % 2 ? 0 : -1; 40 41 /* About to gather in reverse order, 42 divide by 2 to demonstrate scale */ 43 idx.a[i] = (16 - (i + 1) * 8) >> 1; 44 } 45 46 res.x = _mm_mask_i64gather_pd (src.x, s1, idx.x, mask.x, 2); 47 48 compute_i64gatherpd (src.a, s1, idx.a, mask.a, 2, res_ref); 49 50 if (check_union128d (res, res_ref) != 0) 51 abort (); 52} 53