[all-commits] [llvm/llvm-project] 10ddb9: [SCEV] Use isa<> pattern for testing for CouldNotC...

[Philip Reames via All-commits]

  Branch: refs/heads/temp-test-main
  Home:   https://github.com/llvm/llvm-project
  Commit: 10ddb927c1c3ee6af0436c23f93fe1da6de7b99a
      https://github.com/llvm/llvm-project/commit/10ddb927c1c3ee6af0436c23f93fe1da6de7b99a
  Author: Philip Reames <listmail at philipreames.com>
  Date:   2020-11-24 (Tue, 24 Nov 2020)

  Changed paths:
    M llvm/lib/Analysis/LoopAccessAnalysis.cpp
    M llvm/lib/Transforms/Scalar/LoopInterchange.cpp
    M llvm/lib/Transforms/Scalar/LoopVersioningLICM.cpp
    M llvm/lib/Transforms/Scalar/PlaceSafepoints.cpp
    M llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp

  Log Message:
  -----------
  [SCEV] Use isa<> pattern for testing for CouldNotCompute [NFC]

Some older code - and code copied from older code - still directly tested against the singelton result of SE::getCouldNotCompute.  Using the isa<SCEVCouldNotCompute> form is both shorter, and more readable.