1 files changed, 56 insertions, 0 deletions
diff --git a/clang/test/Sema/warn-unused-function.c b/clang/test/Sema/warn-unused-function.c
new file mode 100644
index 0000000..8f4cdcb
--- /dev/null
+++ b/clang/test/Sema/warn-unused-function.c
@@ -0,0 +1,56 @@
+// RUN: %clang_cc1 -fsyntax-only -Wunused-function -Wunneeded-internal-declaration -verify %s
+// RUN: %clang_cc1 -fsyntax-only -verify -Wunused %s
+// RUN: %clang_cc1 -fsyntax-only -verify -Wall %s
+
+void foo() {}
+static void f2() {} 
+static void f1() {f2();} // expected-warning{{unused}}
+
+static int f0() { return 17; } // expected-warning{{not needed and will not be emitted}}
+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() { }
+
+static void __attribute__((used)) f5() {}
+static void f6();
+static void __attribute__((used)) f6();
+static void f6() {};
+
+static void f7(void);
+void f8(void(*a0)(void));
+void f9(void) { f8(f7); }
+static void f7(void) {}
+
+__attribute__((unused)) static void bar(void);
+void bar(void) { }
+
+__attribute__((constructor)) static void bar2(void);
+void bar2(void) { }
+
+__attribute__((destructor)) static void bar3(void);
+void bar3(void) { }
+
+static void f10(void); // expected-warning{{unused}}
+static void f10(void);
+
+static void f11(void);
+static void f11(void) { }  // expected-warning{{unused}}
+
+static void f12(void) { }  // expected-warning{{unused}}
+static void f12(void);
+
+// PR7923
+static void unused(void) { unused(); }  // expected-warning{{not needed and will not be emitted}}
+
+// rdar://8728293
+static void cleanupMalloc(char * const * const allocation) { }
+void f13(void) {
+  char * const __attribute__((cleanup(cleanupMalloc))) a;
+  (void)a;
+}