Viewing file:  sse4_1-pblendw-2.c (1.41 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-require-effective-target sse4 } */
/* { dg-options "-O2 -msse4.1" } */
#include "sse4_1-check.h"
#include <smmintrin.h>
#include <string.h>
#define NUM 20
#undef MASK
#define MASK 0xfe
static void
init_pblendw (short *src1, short *src2)
{
int i, sign = 1;
for (i = 0; i < NUM * 8; i++)
{
src1[i] = i * i * sign;
src2[i] = (i + 20) * sign;
sign = -sign;
}
}
static int
check_pblendw (__m128i *dst, short *src1, short *src2)
{
short tmp[8];
int j;
memcpy (&tmp[0], src1, sizeof (tmp));
for (j = 0; j < 8; j++)
if ((MASK & (1 << j)))
tmp[j] = src2[j];
return memcmp (dst, &tmp[0], sizeof (tmp));
}
static void
sse4_1_test (void)
{
__m128i x, y;
union
{
__m128i x[NUM];
short s[NUM * 8];
} dst, src1, src2;
union
{
__m128i x;
short s[8];
} src3;
int i;
init_pblendw (src1.s, src2.s);
/* Check pblendw imm8, m128, xmm */
for (i = 0; i < NUM; i++)
{
dst.x[i] = _mm_blend_epi16 (src1.x[i], src2.x[i], MASK);
if (check_pblendw (&dst.x[i], &src1.s[i * 8], &src2.s[i * 8]))
abort ();
}
/* Check pblendw imm8, xmm, xmm */
src3.x = _mm_setzero_si128 ();
x = _mm_blend_epi16 (dst.x[2], src3.x, MASK);
y = _mm_blend_epi16 (src3.x, dst.x[2], MASK);
if (check_pblendw (&x, &dst.s[16], &src3.s[0]))
abort ();
if (check_pblendw (&y, &src3.s[0], &dst.s[16]))
abort ();
}
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