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/* { dg-do compile { target {{ i?86-*-* x86_64-*-* } && lp64 } } } */
/* { dg-options "-O2 -m64 -fdump-tree-ivopts-details" } */
/* iv i's step 16 so its period is smaller than the max iterations
* i.e. replacing if (p2 > p_limit2) with testing of i may result in
* overflow. */
long foo(long* p, long* p2, int N1, int N2)
{
unsigned long i = 0;
long* p_limit2 = p2 + N2;
long s = 0;
while (i < N1)
{
p2++;
i += 16;
if (p2 > p_limit2)
break;
s += p[i];
}
return s;
}
/* { dg-final { scan-tree-dump-times "Replacing" 0 "ivopts"} } */
/* { dg-final { cleanup-tree-dump "ivopts" } } */
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