1 files changed, 21 insertions, 0 deletions
diff --git a/clang/test/Sema/nonnull.c b/clang/test/Sema/nonnull.c
new file mode 100644
index 0000000..cea8e3d
--- /dev/null
+++ b/clang/test/Sema/nonnull.c
@@ -0,0 +1,21 @@
+// RUN: %clang_cc1 -fsyntax-only %s
+// rdar://9584012
+
+typedef struct {
+	char *str;
+} Class;
+
+typedef union {
+	Class *object;
+} Instance __attribute__((transparent_union));
+
+__attribute__((nonnull(1))) void Class_init(Instance this, char *str) {
+	this.object->str = str;
+}
+
+int main(void) {
+	Class *obj;
+	Class_init(0, "Hello World"); // expected-warning {{null passed to a callee which requires a non-null argument}}
+	Class_init(obj, "Hello World");
+}
+