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[ThinLTO] Import type as decl only when non-null Identifier

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As per post-commit review for r289993 (D27775), we can only safely
import a type as a decl if it has an Identifier, as the Name alone
is not enough to be unique across modules.

llvm-svn: 290915
This commit is contained in:
Teresa Johnson 2017-01-03 23:19:29 +00:00
parent 2a893b4054
commit 22248b4bd6
1 changed files with 1 additions and 1 deletions
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2
lib/Bitcode/Reader/MetadataLoader.cpp
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@ -749,7 +749,7 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata(
// handles the case where this is type ODRed with a definition needed
// by the importing module, in which case the existing definition is
// used.
if (IsImporting && !ImportFullTypeDefinitions &&
if (IsImporting && !ImportFullTypeDefinitions && Identifier &&
(Tag == dwarf::DW_TAG_enumeration_type ||
Tag == dwarf::DW_TAG_class_type ||
Tag == dwarf::DW_TAG_structure_type ||