1  /* { dg-do run } */
       2  
       3  extern void abort (void);
       4  void __attribute__((noinline,noclone))
       5  clear_board(unsigned char *board, int board_size)
       6  {
       7    int k;
       8    for (k = 0; k < 421; k++)
       9      if (k < board_size )
      10        board[k] = 3;
      11  }
      12  int main()
      13  {
      14    unsigned char board[421];
      15    board[420] = 1;
      16    clear_board (board, 420);
      17    if (board[420] != 1)
      18      abort ();
      19    return 0;
      20  }