I recall reading about this from the same guys a few years ago (I'm not from this field so I can't really figure out what's actually different): http://theory.

I recall reading about this from the same guys a few years ago (I'm not from this field so I can't really figure out what's actually different): http://theory.stanford.edu/~aiken/publications/papers/asplos13.pdf http://theory.stanford.edu/~aiken/publications/papers/asplos... I thought it was really cool that they managed to find improvements on hand-optimized bit tricks from "Hacker's Delight" this way.