[PATCH] D52558: [PHIElimination] Lower a PHI node with only undef uses as IMPLICIT_DEF

[Bjorn Pettersson via Phabricator via llvm-commits]

bjope updated this revision to Diff 167486.
bjope added a comment.

Minor refactoring/renaming as suggested by Matze.


Repository:
  rL LLVM

https://reviews.llvm.org/D52558

Files:
  lib/CodeGen/PHIElimination.cpp
  test/CodeGen/AMDGPU/phi-elimination-assertion.mir

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