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/* { dg-do compile } */

/* { dg-options "-O2 -fno-tree-forwprop -fno-tree-ccp -fdump-tree-ealias" } */

extern void abort (void);

struct X {

  int *p;

  int *q;

  int *r;

};

int __attribute__((noinline))

foo(int i, int j, int k, int off)

{

  struct X x;

  int **p, *q;

  x.p = &i;

  x.q = &j;

  x.r = &k;

  p = &x.q;

  p -= 1;

  /* *p points to { i } */

  q = *p;

  return *q;

}

/* { dg-final { scan-tree-dump "q_., points-to vars: { i }" "ealias" } } */

/* { dg-final { cleanup-tree-dump "ealias" } } */