blob: ab4683401b8006391b6004b0f27cf072910660d7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/* { 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 void
TEST (void)
{
union
{
__m128i x[NUM/8];
unsigned short s[NUM];
} src;
unsigned short minVal[NUM/8];
int minInd[NUM/8];
unsigned short minValScalar, minIndScalar;
int i, j, res;
for (i = 0; i < NUM; i++)
src.s[i] = i * i / (i + i / 3.14 + 1.0);
for (i = 0, j = 0; i < NUM; i += 8, j++)
{
res = _mm_cvtsi128_si32 (_mm_minpos_epu16 (src.x [i/8]));
minVal[j] = res & 0xffff;
minInd[j] = (res >> 16) & 0x3;
}
for (i = 0; i < NUM; i += 8)
{
minValScalar = src.s[i];
minIndScalar = 0;
for (j = i + 1; j < i + 8; j++)
if (minValScalar > src.s[j])
{
minValScalar = src.s[j];
minIndScalar = j - i;
}
if (minValScalar != minVal[i/8] && minIndScalar != minInd[i/8])
abort ();
}
}
|
