Ok, I forgot about always_inline. That is a good point. Anyway, it doesn't work for polymorphic (technically non-static) or recursive code. If you've split y

Ok, I forgot about always_inline. That is a good point. Anyway, it doesn't work for polymorphic (technically non-static) or recursive code. If you've split your program up into lots of pretty little functions, which is fine, you probably have a bunch of polymorphic and recursive code. Typically you get rid of those things by inlining and/or cloning. (Recursive algorithms use the call stack as an implicit data structure, which you can get rid of by introducing an explicit stack locally.) So, to force the compiler to inline some stuff, you have to inline some other stuff. Which is also fine, just that compilers are not magic. For really important things, you need to look at the generated output and decide if you can do better.