From: Douglas Gregor <dgregor@apple.com>
Date: Mon, 26 Mar 2012 15:52:37 +0000 (+0000)
Subject: Canonicalize the declaration we write to a PCH file for an
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=a8e0b978d63c52e39c002fbf014ce553374fedcf;p=clang

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>.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153442 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Serialization/ASTWriter.cpp b/lib/Serialization/ASTWriter.cpp
index b746cff76e..a4301b53e8 100644
--- a/lib/Serialization/ASTWriter.cpp
+++ b/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/test/PCH/cxx-templates.cpp b/test/PCH/cxx-templates.cpp
index 982fc67e4e..7ce247721f 100644
--- a/test/PCH/cxx-templates.cpp
+++ b/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/test/PCH/cxx-templates.h b/test/PCH/cxx-templates.h
index c45e02dcb2..152e8cef54 100644
--- a/test/PCH/cxx-templates.h
+++ b/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 );
+};