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/* { dg-do compile } */
/* { dg-options "-fstrict-overflow -O2 -Wstrict-overflow" } */
 
/* Don't warn about an overflow when folding i > 0.  The loop analysis
   should determine that i does not wrap.  */
 
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;
}