1  /* Test for ICE handling internal formats: bug 20740.  The code did
       2     not check that, if the required typedef names had been used as
       3     identifiers, they were defined to suitable types.  Test "tree", not
       4     defined.  */
       5  /* Origin: Joseph Myers <joseph@codesourcery.com> */
       6  /* { dg-do compile } */
       7  /* { dg-options "-Wformat" } */
       8  
       9  void foo (int tree);
      10  void bar (const char *, ...) __attribute__ ((__format__ (__gcc_diag__, 1, 2)));