Canonicalize the declaration we write to a PCH file for an

InjectedClassNameType; otherwise, it won't be properly wired to the
original (canonical) declaration when it is deserialized. Fixes
<rdar://problem/11112464>.

llvm-svn: 153442

3 files changed, 17 insertions, 1 deletions

diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index b746cff76e2..a4301b53e87 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -365,7 +365,7 @@ void ASTTypeWriter::VisitElaboratedType(const ElaboratedType *T) {
 }
 
 void ASTTypeWriter::VisitInjectedClassNameType(const InjectedClassNameType *T) {
-  Writer.AddDeclRef(T->getDecl(), Record);
+  Writer.AddDeclRef(T->getDecl()->getCanonicalDecl(), Record);
   Writer.AddTypeRef(T->getInjectedSpecializationType(), Record);
   Code = TYPE_INJECTED_CLASS_NAME;
 }
diff --git a/clang/test/PCH/cxx-templates.cpp b/clang/test/PCH/cxx-templates.cpp
index 982fc67e4e8..7ce247721f8 100644
--- a/clang/test/PCH/cxx-templates.cpp
+++ b/clang/test/PCH/cxx-templates.cpp
@@ -62,3 +62,9 @@ namespace Test1 {
     }
   };
 }
+
+template< typename D >
+Foo< D >& Foo< D >::operator=( const Foo& other )
+{
+   return *this;
+}
diff --git a/clang/test/PCH/cxx-templates.h b/clang/test/PCH/cxx-templates.h
index c45e02dcb23..152e8cef546 100644
--- a/clang/test/PCH/cxx-templates.h
+++ b/clang/test/PCH/cxx-templates.h
@@ -205,3 +205,13 @@ namespace NonTypeTemplateParmContext {
   template<int inlineCapacity>
     inline bool equalIgnoringNullity(const Vector<char, inlineCapacity>& a, const String& b) { return false; }
 }
+
+// <rdar://problem/11112464>
+template< typename > class Foo;
+
+template< typename T >
+class Foo : protected T
+{
+ public:
+  Foo& operator=( const Foo& other );
+};