Check in LLVM r95781.
diff --git a/test/CodeGenObjC/attr-strong.c b/test/CodeGenObjC/attr-strong.c
new file mode 100644
index 0000000..f1474bc
--- /dev/null
+++ b/test/CodeGenObjC/attr-strong.c
@@ -0,0 +1,9 @@
+// RUN: %clang -emit-llvm -S -o %t %s
+
+struct s0 {
+  void *a;
+};
+struct s0 * __attribute__((objc_gc(strong))) g0;
+void f0(void) {
+  g0->a = 0;
+}