[PATCH] D97154: [JumpThreading] Clone noalias.scope.decl when threading blocks

[Nikita Popov via Phabricator via llvm-commits]

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When cloning instructions during jump threading, also clone and adapt any declared scopes. This is primarily important when threading loop exits, because we'll end up with two dominating scope declarations in that case (at least after additional loop rotation). This addresses a loose thread from https://reviews.llvm.org/rG2556b413a7b8#975012.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D97154

Files:
  llvm/include/llvm/Transforms/Utils/Cloning.h
  llvm/lib/Transforms/Scalar/JumpThreading.cpp
  llvm/lib/Transforms/Utils/CloneFunction.cpp
  llvm/test/Transforms/JumpThreading/noalias-scope-decl.ll

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