diff --git a/test/CodeGenObjC/objc2-new-gc-api-strongcast.m b/test/CodeGenObjC/objc2-new-gc-api-strongcast.m
index 1ff2dd3d8d..0413910855 100644
--- a/test/CodeGenObjC/objc2-new-gc-api-strongcast.m
+++ b/test/CodeGenObjC/objc2-new-gc-api-strongcast.m
@@ -1,9 +1,11 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fblocks -fobjc-gc -emit-llvm -o %t %s
 // RUN: grep -F '@objc_assign_strongCast' %t  | count 4
+// RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin10 -fblocks -fobjc-gc -emit-llvm -o %t %s
+// RUN: grep -F '@objc_assign_strongCast' %t  | count 4
 
 @interface DSATextSearch @end
 
-DSATextSearch **_uniqueIdToIdentifierArray = ((void *)0);
+DSATextSearch **_uniqueIdToIdentifierArray = (0);
 void foo (int _nextId)
 {
 	_uniqueIdToIdentifierArray[_nextId] = 0;  // objc_assign_strongCast
diff --git a/test/CodeGenObjC/objc2-no-write-barrier.m b/test/CodeGenObjC/objc2-no-write-barrier.m
index 544c329c5e..a0ebc100fb 100644
--- a/test/CodeGenObjC/objc2-no-write-barrier.m
+++ b/test/CodeGenObjC/objc2-no-write-barrier.m
@@ -1,5 +1,7 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin9 -fobjc-gc -emit-llvm -o %t %s
 // RUN: grep 'objc_assign' %t | count 0
+// RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin9 -fobjc-gc -emit-llvm -o %t %s
+// RUN: grep 'objc_assign' %t | count 0
 
 typedef struct {
     int ival;
diff --git a/test/CodeGenObjC/objc2-retain-codegen.m b/test/CodeGenObjC/objc2-retain-codegen.m
index 2c3317a485..9f6620619e 100644
--- a/test/CodeGenObjC/objc2-retain-codegen.m
+++ b/test/CodeGenObjC/objc2-retain-codegen.m
@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -fobjc-gc-only -emit-llvm -o %t %s
+// RUN: %clang_cc1 -x objective-c++ -triple x86_64-unknown-unknown -fobjc-gc-only -emit-llvm -o %t %s
 
 @interface I0 {
   I0 *_f0;
diff --git a/test/CodeGenObjC/objc2-strong-cast-1.m b/test/CodeGenObjC/objc2-strong-cast-1.m
index 509f21a342..b79f8a00f7 100644
--- a/test/CodeGenObjC/objc2-strong-cast-1.m
+++ b/test/CodeGenObjC/objc2-strong-cast-1.m
@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -fobjc-gc -emit-llvm -o %t %s
+// RUN: %clang_cc1 -x objective-c++ -triple x86_64-unknown-unknown -fobjc-gc -emit-llvm -o %t %s
 
 @interface I {
   __attribute__((objc_gc(strong))) int *i_IdocumentIDs;
diff --git a/test/CodeGenObjC/objc2-strong-cast.m b/test/CodeGenObjC/objc2-strong-cast.m
index 9ef463c0df..7291c4e8d2 100644
--- a/test/CodeGenObjC/objc2-strong-cast.m
+++ b/test/CodeGenObjC/objc2-strong-cast.m
@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 -fobjc-gc -emit-llvm -o %t %s
+// RUN: %clang_cc1 -x objective-c++ -fobjc-gc -emit-llvm -o %t %s
 
 @interface I {
   __attribute__((objc_gc(strong))) signed long *_documentIDs;
diff --git a/test/CodeGenObjC/objc2-weak-assign.m b/test/CodeGenObjC/objc2-weak-assign.m
index 42fa7738f4..74c0c00c7c 100644
--- a/test/CodeGenObjC/objc2-weak-assign.m
+++ b/test/CodeGenObjC/objc2-weak-assign.m
@@ -1,5 +1,7 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin9 -fobjc-gc -emit-llvm -o %t %s
 // RUN: grep -e "objc_assign_weak" %t | grep -e "call" | count 6
+// RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin9 -fobjc-gc -emit-llvm -o %t %s
+// RUN: grep -e "objc_assign_weak" %t | grep -e "call" | count 6
 
 __weak id* x;
 id* __weak y;
diff --git a/test/CodeGenObjC/objc2-weak-compare.m b/test/CodeGenObjC/objc2-weak-compare.m
index cb8ca5ff4c..8cba1a9860 100644
--- a/test/CodeGenObjC/objc2-weak-compare.m
+++ b/test/CodeGenObjC/objc2-weak-compare.m
@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 -triple i386-apple-darwin9 -fobjc-gc -emit-llvm -o %t %s
+// RUN: %clang_cc1 -x objective-c++ -triple i386-apple-darwin9 -fobjc-gc -emit-llvm -o %t %s
 
 @interface PBXTarget 
 {
@@ -10,6 +11,7 @@ PBXTarget * result;
 - Meth;
 @end
 
+extern void foo();
 @implementation PBXTarget
 - Meth {
 	if (_lastKnownTarget != result)
diff --git a/test/CodeGenObjC/objc2-weak-ivar-debug.m b/test/CodeGenObjC/objc2-weak-ivar-debug.m
index a6fb7fa275..8f7acd7619 100644
--- a/test/CodeGenObjC/objc2-weak-ivar-debug.m
+++ b/test/CodeGenObjC/objc2-weak-ivar-debug.m
@@ -1,5 +1,7 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin9 -fobjc-gc -g -emit-llvm -o - %s
 // RUN: %clang_cc1 -triple i386-apple-darwin9 -fobjc-gc -g -emit-llvm -o - %s
+// RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin9 -fobjc-gc -g -emit-llvm -o - %s
+// RUN: %clang_cc1 -x objective-c++ -triple i386-apple-darwin9 -fobjc-gc -g -emit-llvm -o - %s
 
 // rdar://7252252
 @interface Loop {
diff --git a/test/CodeGenObjC/objc2-weak-ivar.m b/test/CodeGenObjC/objc2-weak-ivar.m
index cfe1e95952..8c91a80b68 100644
--- a/test/CodeGenObjC/objc2-weak-ivar.m
+++ b/test/CodeGenObjC/objc2-weak-ivar.m
@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin9 -fobjc-gc -emit-llvm -o %t %s
+// RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin9 -fobjc-gc -emit-llvm -o %t %s
 @class NSObject;
 
 @interface Foo  {
diff --git a/test/CodeGenObjC/objc2-write-barrier-2.m b/test/CodeGenObjC/objc2-write-barrier-2.m
index 9a76c6eb82..74cd7eafad 100644
--- a/test/CodeGenObjC/objc2-write-barrier-2.m
+++ b/test/CodeGenObjC/objc2-write-barrier-2.m
@@ -2,6 +2,10 @@
 // RUN: grep -F '@objc_assign_global' %t  | count 7
 // RUN: grep -F '@objc_assign_ivar' %t  | count 5
 // RUN: grep -F '@objc_assign_strongCast' %t  | count 8
+// RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin10 -fobjc-gc -emit-llvm -o %t %s
+// RUN: grep -F '@objc_assign_global' %t  | count 7
+// RUN: grep -F '@objc_assign_ivar' %t  | count 5
+// RUN: grep -F '@objc_assign_strongCast' %t  | count 8
 
 extern id **somefunc(void);
 extern id *somefunc2(void);
diff --git a/test/CodeGenObjC/objc2-write-barrier-3.m b/test/CodeGenObjC/objc2-write-barrier-3.m
index 626083b1c4..cb72cc06e5 100644
--- a/test/CodeGenObjC/objc2-write-barrier-3.m
+++ b/test/CodeGenObjC/objc2-write-barrier-3.m
@@ -1,6 +1,9 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-nonfragile-abi -fblocks -fobjc-gc -emit-llvm -o %t %s
 // RUN: grep objc_assign_ivar %t | count 3
 // RUN: grep objc_assign_strongCast %t | count 6
+// RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin10 -fobjc-nonfragile-abi -fblocks -fobjc-gc -emit-llvm -o %t %s
+// RUN: grep objc_assign_ivar %t | count 3
+// RUN: grep objc_assign_strongCast %t | count 6
 
 struct Slice {
     void *__strong * items;
diff --git a/test/CodeGenObjC/objc2-write-barrier-4.m b/test/CodeGenObjC/objc2-write-barrier-4.m
index 11b4ab4e96..ab30649bec 100644
--- a/test/CodeGenObjC/objc2-write-barrier-4.m
+++ b/test/CodeGenObjC/objc2-write-barrier-4.m
@@ -1,6 +1,9 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-gc -emit-llvm -o %t %s
 // RUN: grep objc_assign_global %t | count 3
 // RUN: grep objc_assign_strongCast %t | count 2
+// RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin10 -fobjc-gc -emit-llvm -o %t %s
+// RUN: grep objc_assign_global %t | count 3
+// RUN: grep objc_assign_strongCast %t | count 2
 
 @interface A
 @end
diff --git a/test/CodeGenObjC/objc2-write-barrier-5.m b/test/CodeGenObjC/objc2-write-barrier-5.m
index babe26d55a..373df0cc16 100644
--- a/test/CodeGenObjC/objc2-write-barrier-5.m
+++ b/test/CodeGenObjC/objc2-write-barrier-5.m
@@ -1,6 +1,9 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-gc -emit-llvm -o %t %s
 // RUN: grep objc_assign_ivar %t | count 0
 // RUN: grep objc_assign_strongCast %t | count 5
+// RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin10 -fobjc-gc -emit-llvm -o %t %s
+// RUN: grep objc_assign_ivar %t | count 0
+// RUN: grep objc_assign_strongCast %t | count 5
 
 @interface TestUnarchiver 
 {
diff --git a/test/CodeGenObjC/objc2-write-barrier.m b/test/CodeGenObjC/objc2-write-barrier.m
index 0934e0a46a..08b65deaa3 100644
--- a/test/CodeGenObjC/objc2-write-barrier.m
+++ b/test/CodeGenObjC/objc2-write-barrier.m
@@ -1,6 +1,9 @@
 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fobjc-gc -emit-llvm -o %t %s
 // RUN: grep -F '@objc_assign_global' %t  | count 21
 // RUN: grep -F '@objc_assign_ivar' %t  | count 11
+// RUN: %clang_cc1 -x objective-c++ -triple x86_64-apple-darwin10 -fobjc-gc -emit-llvm -o %t %s
+// RUN: grep -F '@objc_assign_global' %t  | count 21
+// RUN: grep -F '@objc_assign_ivar' %t  | count 11
 
 
 typedef const struct __CFDictionary * CFDictionaryRef;
@@ -49,9 +52,9 @@ struct_with_ids_t GlobalStructArray[10];
 
 
 // The test cases
-void *rhs = 0;
+void* rhs = 0;
 
-#define ASSIGNTEST(expr, global) expr = rhs
+#define ASSIGNTEST(expr, global) expr = (typeof(expr))rhs
 
 int testGlobals() {
   // Everything in this function generates assign_global intercepts