1  /* { dg-do compile { target lp64 } } */
       2  /* { dg-options "-O2 -fdump-tree-optimized-raw" } */
       3  
       4  int f(int a, int b){
       5    return a * (int)(1L << b);
       6  }
       7  
       8  /* { dg-final { scan-tree-dump "mult_expr" "optimized" } } */