[PATCH] D128322: [GuardWidening] Use logical and in widenCondCommon as it stated in doc

[Serguei Katkov via Phabricator via llvm-commits]

skatkov updated this revision to Diff 439301.
skatkov added a comment.

Step forward trying to take into account Philip's comments.

1. Add LagicAnd parsing in range check parser.
2. Utilize the isGuaranteedNotToBeUndefOrPoison function.

Next steps:

1. Re-factor to simplify code.
2. Add a lot of comments
3. Carefully verify all tests to find bugs.
4. Add freeze logic under an option.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D128322/new/

https://reviews.llvm.org/D128322

Files:
  llvm/lib/Transforms/Scalar/GuardWidening.cpp
  llvm/test/Transforms/GuardWidening/basic-loop.ll
  llvm/test/Transforms/GuardWidening/basic.ll
  llvm/test/Transforms/GuardWidening/basic_widenable_condition_guards.ll
  llvm/test/Transforms/GuardWidening/loop-schedule.ll
  llvm/test/Transforms/GuardWidening/mixed_guards.ll
  llvm/test/Transforms/GuardWidening/range-check-merging.ll

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