[PATCH] D132443: [LSR] Fold terminal condition to other IV when possible

[Yueh-Ting (eop) Chen via Phabricator via llvm-commits]

eopXD updated this revision to Diff 455293.
eopXD marked an inline comment as done.
eopXD added a comment.

Only perform transformation and set `Changed` to true when the SCEV is safe to expand.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D132443/new/

https://reviews.llvm.org/D132443

Files:
  llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
  llvm/test/Transforms/LoopStrengthReduce/lsr-fold-iv-complicate-add-rec.ll
  llvm/test/Transforms/LoopStrengthReduce/lsr-fold-iv-const-tripcount.ll
  llvm/test/Transforms/LoopStrengthReduce/lsr-fold-iv-negative-testcase.ll
  llvm/test/Transforms/LoopStrengthReduce/lsr-fold-iv-runtime-tripcount.ll

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