[PATCH] D142551: [InstCombine] Teach isDeadPHICycle to look through multiple uses

[Luke Lau via Phabricator via llvm-commits]

luke updated this revision to Diff 492520.
luke added a comment.

Address comments


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D142551/new/

https://reviews.llvm.org/D142551

Files:
  llvm/lib/Transforms/InstCombine/InstCombinePHI.cpp
  llvm/test/Transforms/InstCombine/fmul-inseltpoison.ll
  llvm/test/Transforms/InstCombine/fmul.ll
  llvm/test/Transforms/InstCombine/phi-dead-cycle-iteration.ll
  llvm/test/Transforms/InstCombine/phi-dead-cycle-side-effect.ll
  llvm/test/Transforms/InstCombine/pr27703.ll

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