1  /* { dg-do run } */
       2  
       3  int a;
       4  int main()
       5  {
       6    unsigned b = 0;
       7    for (a = 2; a < 8; a += 2)
       8      if (++b > a)
       9        __builtin_abort();
      10    return 0;
      11  }