[PATCH] D102969: [GlobalISel] Add G_SBFX/G_UBFX to computeKnownBits

[Jay Foad via Phabricator via llvm-commits]

foad added reviewers: paquette, RKSimon.
foad added a comment.

Looks reasonable to me. My only slight concern is that the implementation could be more precise when offset and width are not exactly known - but I don't know if there's any point in trying to optimize that case.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D102969/new/

https://reviews.llvm.org/D102969