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

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290915 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Teresa Johnson 2017-01-03 23:19:29 +00:00
parent 7d92286ad9
commit f7951f47fa

View File

@ -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 ||