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path: root/clang/lib/Serialization/ASTReaderDecl.cpp
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-rw-r--r--clang/lib/Serialization/ASTReaderDecl.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/clang/lib/Serialization/ASTReaderDecl.cpp b/clang/lib/Serialization/ASTReaderDecl.cpp
index 6b35b205079e..44b8ba6f4c98 100644
--- a/clang/lib/Serialization/ASTReaderDecl.cpp
+++ b/clang/lib/Serialization/ASTReaderDecl.cpp
@@ -2107,6 +2107,8 @@ void ASTDeclMerger::MergeDefinitionData(
auto *Def = DD.Definition;
DD = std::move(MergeDD);
DD.Definition = Def;
+ while ((Def = Def->getPreviousDecl()))
+ cast<CXXRecordDecl>(Def)->DefinitionData = &DD;
return;
}