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Vlad Tsyrklevich
97fa4365e0
Summary: This change fixes PR36483. The bug was originally introduced by a change that marked non-prevailing symbols dead. This broke LowerTypeTests handling of available_externally functions, which are non-prevailing. LowerTypeTests uses liveness information to avoid emitting thunks for unused functions. Marking available_externally functions dead is incorrect, the functions are used though the function definitions are not. This change keeps them live, and lets the EliminateAvailableExternally/GlobalDCE passes remove them later instead. (Reland with a suspected fix for a unit test failure I haven't been able to reproduce locally) Reviewers: pcc, tejohnson Reviewed By: tejohnson Subscribers: grimar, mehdi_amini, inglorion, eraman, llvm-commits Differential Revision: https://reviews.llvm.org/D43690 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327360 91177308-0d34-0410-b5e6-96231b3b80d8
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