[PCH] We only need to record C++ overridden methods once for the canonical decl.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165788 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Serialization/ASTWriterDecl.cpp b/lib/Serialization/ASTWriterDecl.cpp
index 7bf16be..2270e8f 100644
--- a/lib/Serialization/ASTWriterDecl.cpp
+++ b/lib/Serialization/ASTWriterDecl.cpp
@@ -948,11 +948,16 @@
void ASTDeclWriter::VisitCXXMethodDecl(CXXMethodDecl *D) {
VisitFunctionDecl(D);
- Record.push_back(D->size_overridden_methods());
- for (CXXMethodDecl::method_iterator
- I = D->begin_overridden_methods(), E = D->end_overridden_methods();
- I != E; ++I)
- Writer.AddDeclRef(*I, Record);
+ if (D->isCanonicalDecl()) {
+ Record.push_back(D->size_overridden_methods());
+ for (CXXMethodDecl::method_iterator
+ I = D->begin_overridden_methods(), E = D->end_overridden_methods();
+ I != E; ++I)
+ Writer.AddDeclRef(*I, Record);
+ } else {
+ // We only need to record overridden methods once for the canonical decl.
+ Record.push_back(0);
+ }
Code = serialization::DECL_CXX_METHOD;
}