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/* { dg-do compile } */
/* { dg-options "-O -fdump-tree-ccp1" } */
 
struct A {
    struct B {
	int i;
    } b;
} a;
 
int foo (void)
{
  struct B *p = &a.b;
  struct A *q = (struct A *) p;
  return q->b.i;
}
 
int bar (void)
{
  struct A *p = &a;
  struct B *q = (struct B *) p;
  return q->i;
}
 
/* { dg-final { scan-tree-dump-times "a.b.i" 2 "ccp1" } } */
/* { dg-final { cleanup-tree-dump "ccp1" } } */