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
|
/* { dg-do compile } */
/* { dg-options "-O3 -fdump-tree-optimized" } */
void
test1 (double *out1, double *out2, double *out3, double *in1,
double *in2, int len)
{
int i;
double *__restrict o1 = __builtin_assume_aligned (out1, 16);
double *__restrict o2 = __builtin_assume_aligned (out2, 16);
double *__restrict o3 = __builtin_assume_aligned (out3, 16);
double *__restrict i1 = __builtin_assume_aligned (in1, 16);
double *__restrict i2 = __builtin_assume_aligned (in2, 16);
for (i = 0; i < len; ++i)
{
o1[i] = i1[i] * i2[i];
o2[i] = i1[i] + i2[i];
o3[i] = i1[i] - i2[i];
}
}
void
test2 (double *out1, double *out2, double *out3, double *in1,
double *in2, int len)
{
int i, align = 32, misalign = 16;
out1 = __builtin_assume_aligned (out1, align, misalign);
out2 = __builtin_assume_aligned (out2, align, 16);
out3 = __builtin_assume_aligned (out3, 32, misalign);
in1 = __builtin_assume_aligned (in1, 32, 16);
in2 = __builtin_assume_aligned (in2, 32, 0);
for (i = 0; i < len; ++i)
{
out1[i] = in1[i] * in2[i];
out2[i] = in1[i] + in2[i];
out3[i] = in1[i] - in2[i];
}
}
/* { dg-final { scan-tree-dump-not "__builtin_assume_aligned" "optimized" } } */
|
