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/* { dg-do compile } */
/* { dg-require-effective-target vect_int } */
/* { dg-additional-options "--param=vect-max-version-for-alias-checks=2" } */
/* A test case showing four potential alias checks between a[i] and b[0], b[1],
b[i+1] and b[i+2]. With alias check merging enabled, those four checks
can be merged into two, and the loop will be vectorized with
vect-max-version-for-alias-checks=2. */
void foo (int *a, int *b)
{
int i;
for (i = 0; i < 1000; ++i)
a[i] = b[0] + b[1] + b[i+1] + b[i+2];
}
/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
/* { dg-final { cleanup-tree-dump "vect" } } */
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