[PATCH] D62342: [SelectionDAG] Enhance the simplification of `copyto` from `implicit-def`.

[Michael Liao via Phabricator via llvm-commits]

hliao updated this revision to Diff 201226.
hliao added a comment.

reduce even further


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D62342/new/

https://reviews.llvm.org/D62342

Files:
  llvm/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
  llvm/lib/CodeGen/SelectionDAG/InstrEmitter.h
  llvm/test/CodeGen/AMDGPU/i1-copy-phi.ll

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