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

[Noah Goldstein via Phabricator via llvm-commits]

goldstein.w.n updated this revision to Diff 517049.
goldstein.w.n added a comment.

Rebase


Repository:
  rG LLVM Github Monorepo

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

https://reviews.llvm.org/D149199

Files:
  llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  llvm/test/CodeGen/AMDGPU/cttz_zero_undef.ll
  llvm/test/CodeGen/X86/divrem-by-select.ll

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