I spend most of my time writing C for embedded systems. You should focus first on making life easy for the people reading your code. Use `% 2` and `* 4` when those are the things you mean, rather than `& 1` and `<< 2`. Compilers have been able to do those strength reductions on their own for years, and in most cases even if the compiler didn't, the cycles you'd save aren't worth it.
repiret|3 years ago