> The "replacing multiplication by additions", the replacing multiplication with a shift and the hoisting I mentioned above are all redundant optimisations for

> The "replacing multiplication by additions", the replacing multiplication with a shift and the hoisting I mentioned above are all redundant optimisations for a programmer There's also the fact that the code could get marginally more annoying to maintain, which is honestly more important nowadays even if you were actually saving a few cycles and the compiler wasn't doing the work for you.