-/** Remove tail-recursion. */
-I_FLAG(tail_recursion , 14, ON)
-
-/** Free never called methods */
-I_FLAG(dead_method_elimination , 15, ON)
-
-/** precise exception context */
-I_FLAG(precise_exc_context , 16, ON)
-
-/** Do loop unrolling */
-I_FLAG(loop_unrolling , 17, OFF) /* currently buggy, 2.1.2006 */
-
-/** Do Strength reduction */
-I_FLAG(strength_red , 18, ON)
-
-/** Optimize Loads and Stores */
-I_FLAG(redundant_loadstore , 19, ON)
-
-/** Optimize Fragile OPs */
-I_FLAG(fragile_ops , 20, OFF)
+/** Optimize cast nodes. */
+E_FLAG(suppress_downcast_optimization , 8, OFF)