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// PR rtl-optimization/48549

// { dg-do compile }

// { dg-options "-fcompare-debug -O2" }

__extension__ typedef __PTRDIFF_TYPE__ pdiff_t;

void

foo (void *from, void *to)

{

  pdiff_t offset = reinterpret_cast (to)

                   - reinterpret_cast (from);

  if (offset != static_cast (offset))

    *(int *) 0xC0DE = 0;

  reinterpret_cast (from)[1] = offset;

}

struct A

{

  A () : a () {}

  A (void *x) : a (x) {}

  void *bar () { return a; }

  void *a;

};

struct C;

struct D;

struct E : public A

{

  C m1 (int);

  D m2 ();

  E () {}

  E (A x) : A (x) {}

};

struct C : public E

{

  C () {}

  C (void *x) : E (x) {}

};

struct D : public E

{

  D (void *x) : E (x) {}

};

C

E::m1 (int x)

{

  return (reinterpret_cast (bar ()) + x);

}

D

E::m2 ()

{

  return reinterpret_cast (bar ());

}

struct B

{

  E a;

  unsigned b : 16;

  unsigned c : 1;

};

void

baz (B *x)

{

  for (unsigned i = 0; i < 64; i++)

    {

      D d = x[i].a.m2 ();

      C c = x[i].a.m1 (x[i].c);

      foo (d.bar (), c.bar ());

    }

}