1  /* { dg-do compile } */
       2  /* { dg-options "-Wno-implicit-function-declaration -Wno-int-conversion -fno-builtin-free -fno-builtin-malloc" } */
       3  
       4  void *
       5  foo (void * p)
       6  {
       7    free (p);
       8    return malloc (p);
       9  }