1 files changed, 16 insertions, 0 deletions

diff --git a/test/Sema/warn-unused-function.c b/test/Sema/warn-unused-function.c
new file mode 100644
index 0000000000000..178527f01c0f7
--- /dev/null
+++ b/test/Sema/warn-unused-function.c
@@ -0,0 +1,16 @@
+// RUN: %clang_cc1 -fsyntax-only -Wunused-function -verify %s
+
+void foo() {}
+static void f2() {} 
+static void f1() {f2();} // expected-warning{{unused}}
+
+static int f0() { return 17; } // expected-warning{{unused}}
+int x = sizeof(f0());
+
+static void f3();
+extern void f3() { } // expected-warning{{unused}}
+
+// FIXME: This will trigger a warning when it should not.
+// Update once PR6281 is fixed.
+//inline static void f4();
+//void f4() { } 
\ No newline at end of file