Are you sure that the size of the intermediate representation is a good indication of suitability to inline? I think we&#x27;d be replacing one arbitrary heuristic with another. If we wanted to do really well we&#x27;d look at the cost of the actual operations in both the caller and callee, and reason about how they interact with inlining and things like that, but that&#x27;s a bottomless pit of a problem and by then the user has browsed to a different page.