From eba02fecdd3063960091de39853b07225d03381d Mon Sep 17 00:00:00 2001
From: Douglas Gregor <dgregor@apple.com>
Date: Fri, 13 Apr 2012 15:53:08 +0000
Subject: [PATCH] super and class property reference expressions don't need to
 be rebuilt. Fixes <rdar://problem/11052352>.

llvm-svn: 154667
---
 clang/lib/Sema/SemaPseudoObject.cpp         |  9 +++++++--
 clang/test/SemaObjCXX/property-reference.mm | 15 +++++++++++++++
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/clang/lib/Sema/SemaPseudoObject.cpp b/clang/lib/Sema/SemaPseudoObject.cpp
index d52c912457a1..3b2cf8d7350e 100644
--- a/clang/lib/Sema/SemaPseudoObject.cpp
+++ b/clang/lib/Sema/SemaPseudoObject.cpp
@@ -1300,8 +1300,13 @@ static Expr *stripOpaqueValuesFromPseudoObjectRef(Sema &S, Expr *E) {
   Expr *opaqueRef = E->IgnoreParens();
   if (ObjCPropertyRefExpr *refExpr
         = dyn_cast<ObjCPropertyRefExpr>(opaqueRef)) {
-    OpaqueValueExpr *baseOVE = cast<OpaqueValueExpr>(refExpr->getBase());
-    return ObjCPropertyRefRebuilder(S, baseOVE->getSourceExpr()).rebuild(E);
+    if (refExpr->isObjectReceiver()) {
+      OpaqueValueExpr *baseOVE = cast<OpaqueValueExpr>(refExpr->getBase());
+      return ObjCPropertyRefRebuilder(S, baseOVE->getSourceExpr()).rebuild(E);
+    }
+
+    // Neither class or super property references need a rebuild.
+    return E;
   } else if (ObjCSubscriptRefExpr *refExpr
                = dyn_cast<ObjCSubscriptRefExpr>(opaqueRef)) {
     OpaqueValueExpr *baseOVE = cast<OpaqueValueExpr>(refExpr->getBaseExpr());
diff --git a/clang/test/SemaObjCXX/property-reference.mm b/clang/test/SemaObjCXX/property-reference.mm
index 18f06045a340..b86ae5e9f51d 100644
--- a/clang/test/SemaObjCXX/property-reference.mm
+++ b/clang/test/SemaObjCXX/property-reference.mm
@@ -42,3 +42,18 @@ typedef const TCPPObject& CREF_TCPPObject;
 	cppObjectNonAtomic = cppObject;
 }
 @end
+
+
+// <rdar://problem/11052352>
+@interface NSObject
++ alloc;
+- init;
+- class;
+@end
+
+template<typename T> void f() {
+  NSObject *o = [NSObject.alloc init];
+  [o class];
+}
+
+template void f<int>();