[PATCH] D32637: [KnownBits] Add methods to set and clear all bits.

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

> We also still need methods to clear Zero/One and and set all bits in the opposite. I'm considering makeZero() and makeAllOnes(). As I'm writing this I'm wondering if clearAllBits should be makeUnknown. Not sure what setAll would be in that naming.

Would KnowBits::makeInvalid make sense?


https://reviews.llvm.org/D32637