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