Viewing file:  sse4_1-phminposuw.c (1.58 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-options "-O2 -mvsx -Wno-psabi" } */
/* { dg-require-effective-target vsx_hw } */
#define NO_WARN_X86_INTRINSICS 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 DIM(a) (sizeof (a) / sizeof (a)[0])
static void
TEST (void)
{
union
{
__m128i x;
unsigned short s[8];
} src[] =
{
{ .s = { 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 } },
{ .s = { 0x0000, 0xffff, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 } },
{ .s = { 0xffff, 0xffff, 0x0000, 0xffff, 0xffff, 0xffff, 0x0000, 0xffff } },
{ .s = { 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008 } },
{ .s = { 0x0008, 0x0007, 0x0006, 0x0005, 0x0004, 0x0003, 0x0002, 0x0001 } },
{ .s = { 0xfff4, 0xfff3, 0xfff2, 0xfff1, 0xfff3, 0xfff1, 0xfff2, 0xfff3 } }
};
unsigned short minVal[DIM (src)];
int minInd[DIM (src)];
unsigned short minValScalar, minIndScalar;
int i, j;
union
{
int si;
unsigned short s[2];
} res;
for (i = 0; i < DIM (src); i++)
{
res.si = _mm_cvtsi128_si32 (_mm_minpos_epu16 (src[i].x));
minVal[i] = res.s[0];
minInd[i] = res.s[1] & 0b111;
}
for (i = 0; i < DIM (src); i++)
{
minValScalar = src[i].s[0];
minIndScalar = 0;
for (j = 1; j < 8; j++)
if (minValScalar > src[i].s[j])
{
minValScalar = src[i].s[j];
minIndScalar = j;
}
if (minValScalar != minVal[i] && minIndScalar != minInd[i])
abort ();
}
}
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