Well I have benchmarks where my hand-written asm (on a fundamental inner function) beat the compiler-generated code by 3× :) Without SIMD (not applicable to wha

Well I have benchmarks where my hand-written asm (on a fundamental inner function) beat the compiler-generated code by 3× :) Without SIMD (not applicable to what I was trying to solve). And that was already after copious `assert_unchecked`s to have the compiler assume as many invariants as it could!