[PATCH] D149199: [SelectionDAG] Fill in some more cases in `isKnownNeverZero`

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

Are we really hitting all these cases? We should really ensure we have test coverage for them all.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D149199/new/

https://reviews.llvm.org/D149199