[PATCH] D31239: [WIP] Add Caching of Known Bits in InstCombine

[Reid Kleckner via Phabricator via llvm-commits]

rnk added a comment.

We can't just keep passing more analysis pointers throughout our simplification utilities. We might want some wrapper of common, almost globally used analyses that optionally contains DL, TLI, DT, AC, etc.

Long term, I agree with Danny that computing known bits on demand doesn't seem to scale. We might want to just do the analysis up front and see if that works better.


https://reviews.llvm.org/D31239