[PATCH] D124777: [IROutliner] Accommodate PHINodes with entry outside region for numbering

[Andrew Litteken via Phabricator via llvm-commits]

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When a PHINode has an incoming block from outside the region, it must be handled specially when assigning a global value number to each incoming value.  A PHINode has multiple predecessors, and we must handle this case rather than only the single predecessor case.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D124777

Files:
  llvm/lib/Transforms/IPO/IROutliner.cpp
  llvm/test/Transforms/IROutliner/one-external-incoming-block-phi-node.ll

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