diff --git a/test/FrontendObjC/2007-10-23-GC-WriteBarrier.m b/test/FrontendObjC/2007-10-23-GC-WriteBarrier.m
new file mode 100644
index 00000000000..866c3304887
--- /dev/null
+++ b/test/FrontendObjC/2007-10-23-GC-WriteBarrier.m
@@ -0,0 +1,9 @@
+// RUN: %llvmgcc -x objective-c -c %s -o /dev/null -fobjc-gc
+// rdar://5541393
+
+typedef unsigned int NSUInteger;
+__attribute__((objc_gc(strong))) float *_scores;
+
+void foo(int i, float f) {
+  _scores[i] = f; 
+}