Viewing file:  no-vfa-vect-53.c (1.38 KB) -rw-r--r--
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/* { dg-require-effective-target vect_float } */
#include <stdarg.h>
#include "tree-vect.h"
#define N 256
__attribute__ ((noinline))
void bar (const float *pa, const float *pb, const float *pc)
{
int i;
/* check results: */
for (i = 0; i < N; i++)
{
if (pa[i] != (pb[i] * pc[i]))
abort ();
}
return;
}
/* Unaligned pointer read accesses, aligned pointer write access.
The loop bound is unknown.
Can't prove that the pointers don't alias.
vect-49.c is similar to this one with one difference:
the loop bound is known.
vect-52.c is similar to this one with one difference:
aliasing is not a problem. */
__attribute__ ((noinline)) int
main1 (int n, float *pb, float *pc)
{
float pa[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
int i;
for (i = 0; i < n; i++)
{
pa[i] = pb[i] * pc[i];
}
bar (pa,pb,pc);
return 0;
}
int main (void)
{
int i;
float a[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
float b[N+1] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60};
float c[N+1] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};
check_vect ();
main1 (N,&b[1],c);
main1 (N,&b[1],&c[1]);
return 0;
}
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
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