1  /* { dg-do compile } */
       2  /* { dg-options "-O -fstrict-overflow -fdump-tree-optimized-raw" } */
       3  
       4  int f (long *a, long *b, long *c) {
       5      __PTRDIFF_TYPE__ l1 = b - a;
       6      __PTRDIFF_TYPE__ l2 = c - a;
       7      return l1 < l2;
       8  }
       9  
      10  /* { dg-final { scan-tree-dump-not "minus_expr" "optimized" } } */
      11  /* { dg-final { scan-tree-dump-not "exact_div_expr" "optimized" } } */