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
|
/* { dg-do compile { target { powerpc*-*-* && lp64 } } } */
/* { dg-skip-if "" { powerpc*-*-darwin* } { "*" } { "" } } */
/* { dg-require-effective-target powerpc_vsx_ok } */
/* { dg-options "-mcpu=power7 -O2 -ftree-vectorize -fno-vect-cost-model -fdump-tree-vect-details" } */
/* Taken from vect/vect-95.c. */
#include <stdlib.h>
#include <stdarg.h>
#define N 256
__attribute__ ((noinline))
void bar (double *pd, double *pa, double *pb, double *pc)
{
int i;
/* check results: */
for (i = 0; i < N; i++)
{
if (pa[i] != (pb[i] * pc[i]))
abort ();
if (pd[i] != 5.0)
abort ();
}
return;
}
__attribute__ ((noinline)) int
main1 (int n, double * __restrict__ pd, double * __restrict__ pa, double * __restrict__ pb, double * __restrict__ pc)
{
int i;
for (i = 0; i < n; i++)
{
pa[i] = pb[i] * pc[i];
pd[i] = 5.0;
}
bar (pd,pa,pb,pc);
return 0;
}
int main (void)
{
int i;
double a[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
double d[N+1] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
double b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57};
double c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19};
main1 (N,&d[1],a,b,c);
main1 (N-2,&d[1],a,b,c);
return 0;
}
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
/* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 0 "vect" {xfail {! vect_hw_misalign } } } } */
/* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning" 0 "vect" } } */
/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 4 "vect" {xfail {! vect_hw_misalign } } } } */
/* { dg-final { cleanup-tree-dump "vect" } } */
|
