A compiler I use, based on lcc, did this automatically without even enabling opt... | Hacker News

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		readerrrr on Sept 26, 2014 \| parent \| context \| favorite \| on: Faster Unsigned Division by Constants (2011) A compiler I use, based on lcc, did this automatically without even enabling optimizations. The division is transformed into multiplication and a right shift. I don't think your usual programmer must care about that with the modern compilers, but it is nice to know if you are implementing one or you are coding in asm.

clarry on Sept 26, 2014 [–]

Or if you're dealing with data that isn't compile-time constant, but can be expected to remain unchanged for the duration of something that needs to be optimized all the way.

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