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Commit 30be8a30 authored by Lang Hames's avatar Lang Hames
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Check isDiscardableIfUnused, rather than hasLocalLinkage, when bumping 

GlobalValue linkage up to ExternalLinkage in the ExtractGV pass. This
prevents linkonce and linkonce_odr symbols from being DCE'd.

llvm-svn: 176459
parent 743bf67c
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