Sure, but is that using PCHs? And how much of that time is preprocessing? I don't think the parent question is whether clang can compile any project in less tha

Sure, but is that using PCHs? And how much of that time is preprocessing? I don't think the parent question is whether clang can compile any project in less than 3 hours. I think the interesting question is if warp is more compelling than clang from a preprocessing perspective.