Teresa Johnson ba0fc20463 Ensure MDNode used as key in metadata linking map cannot be RAUWed ... As suggested in review for r255909, add a way to ensure that temporary MD used as keys in the MetadataToID map during ThinLTO importing are not RAUWed. Add support for marking an MDNode as not replaceable. Clear the new CanReplace flag when adding a temporary MD node to the MetadataToID map and clear it when destroying the map. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256648 91177308-0d34-0410-b5e6-96231b3b80d8		2015-12-30 19:32:24 +00:00
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Reader	Ensure MDNode used as key in metadata linking map cannot be RAUWed	2015-12-30 19:32:24 +00:00
Writer	Rename MDValue* to Metadata* (NFC)	2015-12-29 23:00:22 +00:00
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