1  /* PR tree-optimization/84224 */
       2  /* { dg-do compile } */
       3  /* { dg-prune-output "conflicting types for built-in" } */
       4  /* { dg-options "-O0 -Walloca" } */
       5  
       6  void *alloca ();
       7  __typeof__(alloca ()) a () { return alloca (); }
       8  
       9  /* { dg-prune-output "\\\[-Wbuiltin-declaration-mismatch]" } */