[PATCH] D136218: [DSE] Sink a memory access if it is only alive in one successor.

[luxufan via Phabricator via llvm-commits]

StephenFan updated this revision to Diff 478176.
StephenFan added a comment.

1. Don't bail out immediatly if has read clobber.
2. Handle the slow CFG search.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D136218/new/

https://reviews.llvm.org/D136218

Files:
  llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
  llvm/test/Transforms/DeadStoreElimination/multiblock-multipath.ll
  llvm/test/Transforms/DeadStoreElimination/multiblock-simple.ll
  llvm/test/Transforms/DeadStoreElimination/multiblock-sink.ll
  llvm/test/Transforms/DeadStoreElimination/multiblock-unreachable.ll
  llvm/test/Transforms/DeadStoreElimination/stores-of-existing-values.ll
  llvm/test/Transforms/PhaseOrdering/AArch64/mul-ov.ll

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