FWIW i do not care that much about having LLVM's optimizations. As long as there are a few decent optimizations to do most of the stupid stuff i'm fine - i can do the rest myself whenever (and if) needed. It is only a very tiny part of the codebase that would need heavy optimizations anyway, yet having to pay (in terms of compilation time) for that for the entire codebase is an absurdity that we just seem to got used to.
