1  /* { dg-do compile } */
       2  /* { dg-options "-O2" } */
       3  #include <stddef.h>
       4  
       5  typedef __INTPTR_TYPE__ my_intptr_t;
       6  
       7  typedef struct {
       8    my_intptr_t unique;
       9  } G;
      10  
      11  void r(G* n)
      12  {
      13    my_intptr_t p;
      14    if (((G *) ((void *)((~(my_intptr_t)(p))))) != ((void *)0)) {
      15      ((G *) ((void *)((~(my_intptr_t)(p)))))->unique = n->unique;
      16    }
      17  }
      18