Viewing file:  avx512f-i64scatterps512-2.c (1.07 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_scatterqps (__mmask8 m8, long long *idx,
float *src, int scale, float *r)
{
int i;
for (i = 0; i < 8; i++)
{
if (m8 & (1 << i))
*(float *) (((unsigned char *) r) + idx[i] * scale) = src[i];
}
}
static void
avx512f_test (void)
{
int i;
union256 src;
union512i_q idx;
float res[8] = { 0.0 };
float res_ref[8] = { 0.0 };
__mmask8 m8 = 0xC5;
for (i = 0; i < 8; i++)
{
src.a[i] = 2.718281828459045 * (i + 1) * (i + 2);
/* About to gather in reverse order,
divide by 2 to demonstrate scale */
idx.a[i] = (32 - (i + 1) * 4) >> 1;
}
_mm512_mask_i64scatter_ps (res, m8, idx.x, src.x, SCALE);
compute_scatterqps (m8, idx.a, src.a, SCALE, res_ref);
if (checkVf (res, res_ref, 8))
abort ();
_mm512_i64scatter_ps (res, idx.x, src.x, SCALE);
compute_scatterqps (0xFF, idx.a, src.a, SCALE, res_ref);
if (checkVf (res, res_ref, 8))
abort ();
}
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