1 files changed, 13 insertions, 1 deletions
diff --git a/test/Sema/warn-unused-function.c b/test/Sema/warn-unused-function.c
index 8f4cdcb..a334e71 100644
--- a/test/Sema/warn-unused-function.c
+++ b/test/Sema/warn-unused-function.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -Wunused-function -Wunneeded-internal-declaration -verify %s
+// RUN: %clang_cc1 -fsyntax-only -Wused-but-marked-unused -Wunused-function -Wunneeded-internal-declaration -verify %s
 // RUN: %clang_cc1 -fsyntax-only -verify -Wunused %s
 // RUN: %clang_cc1 -fsyntax-only -verify -Wall %s
 
@@ -54,3 +54,15 @@ void f13(void) {
   char * const __attribute__((cleanup(cleanupMalloc))) a;
   (void)a;
 }
+
+// rdar://12233989
+extern void a(void) __attribute__((unused));
+extern void b(void) __attribute__((unused));
+
+void b(void)
+{
+}
+void a(void)
+{
+  b();
+}