Vendor import of clang trunk r126079:

http://llvm.org/svn/llvm-project/cfe/trunk@126079

1 files changed, 20 insertions, 0 deletions

diff --git a/test/CodeGenObjCXX/refence-assign-write-barrier.mm b/test/CodeGenObjCXX/refence-assign-write-barrier.mm
new file mode 100644
index 0000000..b295eb25
--- /dev/null
+++ b/test/CodeGenObjCXX/refence-assign-write-barrier.mm
@@ -0,0 +1,20 @@
+// RUN: %clang_cc1 -fobjc-gc -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s
+// rdar://8681766
+
+@interface NSArray 
+- (NSArray*) retain;
+- (void) release;
+@end
+
+void NSAssignArray(NSArray*& target, NSArray* newValue)
+{
+        if (target == newValue)
+                return;
+
+        NSArray* oldValue = target;
+
+        target = [newValue retain];
+
+        [oldValue release];
+}
+// CHECK: {{call.* @objc_assign_strongCast}}