Viewing file:  avx512f-i32gatherq512-2.c (1.12 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-options "-mavx512f -O2" } */
/* { dg-require-effective-target avx512f } */
#include "avx512f-check.h"
#define SCALE 2
static void
compute_gatherdq (long long *res, __mmask8 m8, int *idx,
long long *src, int scale, long long *r)
{
int i;
for (i = 0; i < 8; i++)
{
if (m8 & (1 << i))
r[i] = *(long long *)
(((unsigned char *) src) + idx[i] * scale);
else
r[i] = res[i];
}
}
static void
avx512f_test (void)
{
int i;
union256i_d idx;
union512i_q res;
long long src[8];
long long res_ref[8];
__mmask8 m8 = 0xC5;
for (i = 0; i < 8; i++)
{
src[i] = 1983 * (i + 1) * (i + 2);
/* About to gather in reverse order,
divide by 2 to demonstrate scale */
idx.a[i] = (64 - (i + 1) * 8) >> 1;
}
res.x = _mm512_mask_i32gather_epi64 (res.x, m8, idx.x, src, SCALE);
compute_gatherdq (res.a, m8, idx.a, src, SCALE, res_ref);
if (check_union512i_q (res, res_ref))
abort ();
res.x = _mm512_i32gather_epi64 (idx.x, src, SCALE);
compute_gatherdq (res.a, 0xFF, idx.a, src, SCALE, res_ref);
if (check_union512i_q (res, res_ref))
abort ();
}
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