Viewing file:  sse4_1-packusdw.c (1.18 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-require-effective-target sse4 } */
/* { dg-options "-O2 -msse4.1" } */
#ifndef CHECK_H
#define CHECK_H "sse4_1-check.h"
#endif
#ifndef TEST
#define TEST sse4_1_test
#endif
#include CHECK_H
#include <smmintrin.h>
#define NUM 64
static unsigned short
int_to_ushort (int iVal)
{
unsigned short sVal;
if (iVal < 0)
sVal = 0;
else if (iVal > 0xffff)
sVal = 0xffff;
else sVal = iVal;
return sVal;
}
static void
TEST (void)
{
union
{
__m128i x[NUM / 4];
int i[NUM];
} src1, src2;
union
{
__m128i x[NUM / 4];
unsigned short s[NUM * 2];
} dst;
int i, sign = 1;
for (i = 0; i < NUM; i++)
{
src1.i[i] = i * i * sign;
src2.i[i] = (i + 20) * sign;
sign = -sign;
}
for (i = 0; i < NUM; i += 4)
dst.x[i / 4] = _mm_packus_epi32 (src1.x [i / 4], src2.x [i / 4]);
for (i = 0; i < NUM; i ++)
{
int dstIndex;
unsigned short sVal;
sVal = int_to_ushort (src1.i[i]);
dstIndex = (i % 4) + (i / 4) * 8;
if (sVal != dst.s[dstIndex])
abort ();
sVal = int_to_ushort (src2.i[i]);
dstIndex += 4;
if (sVal != dst.s[dstIndex])
abort ();
}
}
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