[PATCH] D97495: [SimplifyCFG] avoid illegal phi with both poison and undef

[Sanjay Patel via Phabricator via llvm-commits]

spatel updated this revision to Diff 326802.
spatel added a comment.

Patch updated:
We have a dedicated function for replacing undef incoming values, so I enhanced that to account for poison mismatches.
This gives us the expected, optimized result in all of the test examples.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D97495/new/

https://reviews.llvm.org/D97495

Files:
  llvm/lib/Transforms/Utils/Local.cpp
  llvm/test/Transforms/SimplifyCFG/poison-merge.ll

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