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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
/* { dg-do run } */
/* { dg-require-effective-target sse5 } */
/* { dg-options "-O2 -msse5" } */
#include "sse5-check.h"
#include <bmmintrin.h>
#include <string.h>
#define NUM 20
union
{
__m128 x[NUM];
float f[NUM * 4];
__m128d y[NUM];
double d[NUM * 2];
} dst, res, src1, src2, src3;
/* Note that in macc*,msub*,mnmacc* and mnsub* instructions, the intermdediate
product is not rounded, only the addition is rounded. */
static void
init_msubps ()
{
int i;
for (i = 0; i < NUM * 4; i++)
{
src1.f[i] = i;
src2.f[i] = i + 10;
src3.f[i] = i + 20;
}
}
static void
init_msubpd ()
{
int i;
for (i = 0; i < NUM * 4; i++)
{
src1.d[i] = i;
src2.d[i] = i + 10;
src3.d[i] = i + 20;
}
}
static int
check_msubps ()
{
int i, j, check_fails = 0;
for (i = 0; i < NUM * 4; i = i + 4)
for (j = 0; j < 4; j++)
{
res.f[i + j] = (src1.f[i + j] * src2.f[i + j]) - src3.f[i + j];
if (dst.f[i + j] != res.f[i + j])
check_fails++;
}
return check_fails++;
}
static int
check_msubpd ()
{
int i, j, check_fails = 0;
for (i = 0; i < NUM * 2; i = i + 2)
for (j = 0; j < 2; j++)
{
res.d[i + j] = (src1.d[i + j] * src2.d[i + j]) - src3.d[i + j];
if (dst.d[i + j] != res.d[i + j])
check_fails++;
}
return check_fails++;
}
static int
check_msubss ()
{
int i, j, check_fails = 0;
for (i = 0; i < NUM * 4; i = i + 4)
{
res.f[i] = (src1.f[i] * src2.f[i]) - src3.f[i];
if (dst.f[i] != res.f[i])
check_fails++;
}
return check_fails++;
}
static int
check_msubsd ()
{
int i, j, check_fails = 0;
for (i = 0; i < NUM * 2; i = i + 2)
{
res.d[i] = (src1.d[i] * src2.d[i]) - src3.d[i];
if (dst.d[i] != res.d[i])
check_fails++;
}
return check_fails++;
}
static void
sse5_test (void)
{
int i;
/* Check msubps */
init_msubps ();
for (i = 0; i < NUM; i++)
dst.x[i] = _mm_msub_ps (src1.x[i], src2.x[i], src3.x[i]);
if (check_msubps ())
abort ();
/* check msubss */
for (i = 0; i < NUM; i++)
dst.x[i] = _mm_msub_ss (src1.x[i], src2.x[i], src3.x[i]);
if (check_msubss ())
abort ();
/* Check msubpd */
init_msubpd ();
for (i = 0; i < NUM; i++)
dst.y[i] = _mm_msub_pd (src1.y[i], src2.y[i], src3.y[i]);
if (check_msubpd ())
abort ();
/* Check msubps */
for (i = 0; i < NUM; i++)
dst.y[i] = _mm_msub_sd (src1.y[i], src2.y[i], src3.y[i]);
if (check_msubsd ())
abort ();
}
|
