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/* { dg-do run } */

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

/* { dg-options "-O2 -mtune=i686" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */

extern void abort (void);

extern void exit (int);

struct A { char p[6]; } __attribute__((packed));

struct B {

    struct A a;

    void * const b;

    struct A const * const c;

    struct A const *d;

};

char v;

int __attribute__((noinline))

foo (struct B *b)

{

  int i;

  for (i = 0; i < 6; ++i)

    if (b->a.p[i])

      abort ();

  if (b->b != &v || b->c || b->d)

    abort ();

  return 12;

}

int __attribute__((noinline))

bar (void *x)

{

  __asm __volatile ("" : "=r" (x) : "0" (x));

  struct B y = { .b = x, .c = (void *) 0 };

  return foo (&y) + 1;

}

int

main (void)

{

  if (bar (&v) != 13)

    abort ();

  exit (0);

}