Viewing file:  no-vfa-vect-101.c (1.06 KB) -rw-r--r--
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/* { dg-require-effective-target vect_int } */
#include <stdlib.h>
#include <stdarg.h>
#include "tree-vect.h"
#define N 9
struct extraction
{
int a[N];
int b[N];
};
static int a[N] = {1,2,3,4,5,6,7,8,9};
static int b[N] = {2,3,4,5,6,7,8,9,0};
__attribute__ ((noinline))
int main1 (int x, int y) {
int i;
struct extraction *p;
p = (struct extraction *) malloc (sizeof (struct extraction));
/* Not vectorizable: different unknown offset. */
#pragma GCC unroll 0
for (i = 0; i < N; i++)
{
*((int *)p + x + i) = a[i];
*((int *)p + y + i) = b[i];
}
/* check results: */
for (i = 0; i < N; i++)
{
if (p->a[i] != a[i] || p->b[i] != b[i])
abort();
}
return 0;
}
int main (void)
{
check_vect ();
return main1 (0, N);
}
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" } } */
/* { dg-final { scan-tree-dump-times "can't determine dependence" 1 "vect" { target { ! vect_multiple_sizes } } } } */
/* { dg-final { scan-tree-dump "can't determine dependence" "vect" { target vect_multiple_sizes } } } */
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