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/* { dg-do compile } */
/* { dg-options "-fno-strict-overflow -O2 -fdump-tree-optimized" } */
/* We cannot fold i > 0 because p->a - p->b can be larger than INT_MAX
and thus i can wrap. Dual of Wstrict-overflow-18.c */
struct c { unsigned int a; unsigned int b; };
extern void bar (struct c *);
int
foo (struct c *p)
{
int i;
int sum = 0;
for (i = 0; i < p->a - p->b; ++i)
{
if (i > 0)
sum += 2;
bar (p);
}
return sum;
}
/* { dg-final { scan-tree-dump "i_.* > 0" "optimized" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */
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