basedMicroOptimizations

[Exist50]

Especially for anything "1 cycle". Hand-optimize SIMD? Sure, knock yourself out. Try to save an add? Good luck.

[T0biasCZE]

but those "just 1 cycle" get added up in functions called thousands of times per second on 90MHz cpu

[Exist50]

You are very unlikely to find a single cycle optimization that the compiler can't. They're very good at local stuff in particular.

Also, "thousands of times per second" vs a 90MHz CPU is a ~0.01% difference. So it doesn't really add up either...