[PATCH] D125990: [LSR] Fix bug for optimizing unused IVs to final values

[Zaara Syeda via Phabricator via llvm-commits]

syzaara updated this revision to Diff 432317.
syzaara added a comment.

Shift handling into rewriteLoopExitValues so we can check each individual phi. Added a new entry to enum ReplaceExitVal called UnusedIndVar which will allow rewriteLoopExitValues to check for exit values that can be replaced when they are used as induction variables in the loop with no other uses in the loop.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D125990/new/

https://reviews.llvm.org/D125990

Files:
  llvm/include/llvm/Transforms/Utils/LoopUtils.h
  llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
  llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
  llvm/lib/Transforms/Utils/LoopUtils.cpp
  llvm/test/Transforms/LoopStrengthReduce/remove_scev_indvars.ll

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