Alias analysis is important. It's the C standard's type-based "strict aliasing" rules which are nonsense and should be disabled by default. This is C. Here in

Alias analysis is important. It's the C standard's type-based "strict aliasing" rules which are nonsense and should be disabled by default. This is C. Here in these lands, we do things like cast float* to int* so that we can do evil bit level manipulation. The compiler is just gonna have to put that in its pipeline and compile it.