[PATCH] D12706: Handle non-constant shifts in computeKnownBits, and use computeKnownBits for constant folding in InstCombine/Simplify

[John Regehr via llvm-commits]

regehr added a comment.

Hal, sounds great, I'll follow up. Philip Reames has offered to help which is great since I'm not too familiar with the process or tools here!


http://reviews.llvm.org/D12706