1  /* PR c/51628.  */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O" } */
       4  
       5  struct A { int i; } __attribute__ ((packed));
       6  struct B { struct A a; };
       7  struct C { struct B b; };
       8  
       9  extern struct C *p;
      10  
      11  int* g8 (void) { return &p->b.a.i; }
      12  /* { dg-warning "may result in an unaligned pointer value" "" { target { ! default_packed } } .-1 } */