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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/* { dg-do run } */
/* { dg-options "-O2 -msse2" } */
/* { dg-require-effective-target sse2 } */
#include "sse2-check.h"
#ifdef DEBUG
#include <stdio.h>
#endif
#include <emmintrin.h>
static void
__attribute__((noinline))
check (__m128i x, unsigned char *v, int j)
{
union
{
__m128i x;
unsigned char i[16];
} u;
unsigned int i;
u.x = x;
for (i = 0; i < sizeof (v) / sizeof (v[0]); i++)
if (i == j)
{
if (v[i] != u.i[i])
{
#ifdef DEBUG
printf ("%i: 0x%x != 0x%x\n", i, v[i], u.i[i]);
#endif
abort ();
}
}
else if (u.i[i] != 0)
{
#ifdef DEBUG
printf ("%i: 0x%x != 0\n", i, u.i[i]);
#endif
abort ();
}
}
static void
__attribute__((noinline))
test (unsigned char *v)
{
__m128i x;
x = _mm_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, v[0]);
check (x, v, 0);
x = _mm_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, v[1], 0);
check (x, v, 1);
x = _mm_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, v[2], 0, 0);
check (x, v, 2);
x = _mm_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, v[3], 0, 0, 0);
check (x, v, 3);
x = _mm_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, v[4], 0, 0, 0, 0);
check (x, v, 4);
x = _mm_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, v[5], 0, 0, 0, 0, 0);
check (x, v, 5);
x = _mm_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, v[6], 0, 0, 0, 0, 0, 0);
check (x, v, 6);
x = _mm_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, v[7], 0, 0, 0, 0, 0, 0, 0);
check (x, v, 7);
}
static void
sse2_test (void)
{
unsigned char v[16]
= { 0x7B, 0x5B, 0x54, 0x65, 0x73, 0x74, 0x56, 0x65,
0x63, 0x74, 0x6F, 0x72, 0x5D, 0x53, 0x47, 0x5D };
test (v);
}
|
