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/* { dg-require-effective-target vect_int } */
#include <stdarg.h>
#include "tree-vect.h"
#define N 16
int main1 ()
{
union {
unsigned char a[N] __attribute__ ((__aligned__(16)));
unsigned char b[N] __attribute__ ((__aligned__(16)));
} s;
int i;
/* Initialization. */
for (i = 0; i < N; i++)
{
s.b[i] = 3*i;
}
/* Dependence analysis fails cause s.a and s.b may overlap.
Use runtime aliasing test with versioning. */
for (i = 0; i < N; i++)
{
s.a[i] = s.b[i] + 1;
}
/* check results: */
for (i = 0; i < N; i++)
{
if (s.a[i] != 3*i + 1)
abort ();
}
return 0;
}
int main (void)
{
check_vect ();
return main1 ();
}
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
/* { dg-final { scan-tree-dump-times "can't determine dependence between" 1 "vect" } } */
/* { dg-final { cleanup-tree-dump "vect" } } */
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