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// PR c++/5748

// This testcase ICEd because used flag from the anon union variables

// was not propagated back to the anon union itself, causing addressof

// not to be replaced with stack slot.

// { dg-do compile }

// { dg-options "-O2" }

struct A {

  A ();

  ~A ();

  int foo ();

  int bar (void *x, int y);

};

int A::foo()

{

  union {

    int a;

    int b;

  };

  if (bar (&a, sizeof (int)) != 32)

    return 16;

  return 0;

}