[PATCH] D146685: [LoopPredication] Fix the LoopPredication by feezing the result.

[Serguei Katkov via Phabricator via llvm-commits]

skatkov created this revision.
skatkov added reviewers: apilipenko, mkazantsev, reames, nikic.
Herald added subscribers: StephenFan, hiraditya.
Herald added a project: All.
skatkov requested review of this revision.
Herald added a project: LLVM.

LoopPredication introduces the use of possibly posion value in branch (guard)
instruction, so to avoid introducing undefined behavior it should be freezed.


https://reviews.llvm.org/D146685

Files:
  llvm/lib/Transforms/Scalar/LoopPredication.cpp
  llvm/test/Transforms/LoopPredication/assumes.ll
  llvm/test/Transforms/LoopPredication/basic.ll
  llvm/test/Transforms/LoopPredication/basic_widenable_branch_guards.ll
  llvm/test/Transforms/LoopPredication/invariant_load.ll
  llvm/test/Transforms/LoopPredication/nested.ll
  llvm/test/Transforms/LoopPredication/poison.ll
  llvm/test/Transforms/LoopPredication/pr61022.ll
  llvm/test/Transforms/LoopPredication/profitability.ll
  llvm/test/Transforms/LoopPredication/reverse.ll
  llvm/test/Transforms/LoopPredication/visited.ll
  llvm/test/Transforms/LoopPredication/widened.ll

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