[PATCH] D139832: [IndVars] Support AND in optimizeLoopExitWithUnknownExitCount

[Max Kazantsev via Phabricator via llvm-commits]

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This patch allows optimizeLoopExitWithUnknownExitCount to deal with
branches by conditions that are not immediately ICmp's, but aggregates
of ICmp's and potentially any other conditions. Each ICmp is optimized
independently.


https://reviews.llvm.org/D139832

Files:
  llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
  llvm/test/Transforms/IndVarSimplify/turn-to-invariant.ll

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