1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -Wstrict-overflow" } */
       3  
       4  unsigned int
       5  do_scrolling (unsigned int window_size, unsigned int writecost)
       6  {
       7    unsigned int i = window_size;
       8  
       9    int terminal_window_p = 0;
      10    unsigned int queue = 0;
      11  
      12    for (i = window_size; i; i--)
      13      {
      14        if (writecost < i)
      15      ++queue;
      16        else if (writecost & 1)
      17      terminal_window_p = 1;
      18      }
      19  
      20    if (queue > 0)
      21      {
      22        if (!terminal_window_p)
      23      {
      24        terminal_window_p = 1;
      25      }
      26      }
      27  
      28    if (terminal_window_p)
      29      return 100;
      30    return 0;
      31  }