1  /* { dg-do compile } */
       2  /* { dg-options "-O2" } */
       3  
       4  struct _wincore
       5  {
       6    int y;
       7    int width;
       8  };
       9  int a;
      10  void fn2 (void);
      11  static int fn1 (dpy, winInfo) struct _XDisplay *dpy;
      12  struct _wincore *winInfo;
      13  {
      14    a = winInfo->width;
      15    fn2 ();
      16  }
      17  
      18  void fn4 (int, int, int);
      19  static int fn3 (dpy, winInfo, visrgn) struct _XDisplay *dpy;
      20  int winInfo, visrgn;
      21  {
      22    int b = fn1 (0, winInfo);
      23    fn4 (0, 0, visrgn);
      24  }
      25  
      26  int
      27  fn5 (event) struct _XEvent *event;
      28  {
      29    fn3 (0, 0, 0);
      30  }