1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fcf-protection -mfunction-return=thunk-extern -mindirect-branch=thunk-extern" } */
       3  
       4  int
       5  bar (void (*foo) (void))
       6  {
       7    foo (); 
       8    return 0;
       9  }