1  /* { dg-do compile } */
       2  /* { dg-options "-O -ftrivial-auto-var-init=zero -Wuninitialized" } */
       3  
       4  int
       5  qy (void)
       6  {
       7    int tw = 4;
       8    int fb[tw];
       9    return fb[2]; /* { dg-warning "uninitialized" } */
      10  }