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/* { dg-do run } */

/* { dg-options "-O2" } */

/* VRP was miscompiling the following as it thought &a->b was a dereference

   and therfore a was non-null.

   Reduced from Mozilla by Serge Belyshev .  */

extern "C" void abort (void);

struct T { int i; } t;

struct A : T { int j; } *p = __null;

int main (void)

{

  if (p == &t)

    return 0;

  if (p)

    abort ();

  return 0;

}