[PATCH] D148709: [LVI][CVP] Don't compute CR at SelectInst Use if Cond value may not be well-defined

[luxufan via Phabricator via llvm-commits]

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If the condition value of SelectInst may be a poison or undef value,
infer constant range at SelectInst use is in correct.

See https://alive2.llvm.org/ce/z/MWMTYn


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D148709

Files:
  llvm/lib/Analysis/LazyValueInfo.cpp
  llvm/test/Transforms/CorrelatedValuePropagation/cond-at-use.ll

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