On Fri, Mar 11, 2011 at 01:01:37AM -0500, Jason Merrill wrote: > On 03/10/2011 11:23 PM, Nathan Froyd wrote: >> The new checks in add_stmt are >> required to make sure that cur_stmt_list can always point at something >> when calling append_to_statement_list_force. > > Why haven't we already pushed before we get to add_stmt?
That's a good question. Possibly as a result of append_to_statement_list_1 helpfully noticing that if we pass in a pointer to NULL, it goes ahead and creates a list for us. This works nicely for the TREE_CHAIN-based stack, but not so nicely for the VEC-based stack. One wonders if the NULL checking in append_to_statement_list_1 could go away... -Nathan
