[PATCH] D110060: [LoopBoundSplit] Handle the case in which exiting block is loop header

[JinGu Kang via Phabricator via llvm-commits]

jaykang10 updated this revision to Diff 374169.
jaykang10 added a comment.

https://reviews.llvm.org/D110060 is merged into this patch.

Following the comment of @mkazantsev, updated patch.

- If the `Cond.AddRecValue` is PHI node, update `Cond.NonPHIAddRecValue` with value from backedge.
- Use `Cond.NonPHIAddRecValue` when the start value of IV in post loop is updated.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D110060/new/

https://reviews.llvm.org/D110060

Files:
  llvm/lib/Transforms/Scalar/LoopBoundSplit.cpp
  llvm/test/Transforms/LoopBoundSplit/bug-loop-bound-split-phi-in-exit-block.ll
  llvm/test/Transforms/LoopBoundSplit/bug51866.ll

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