warn-unused-function.c revision f6d1d43d68016e975f22264343631a55b9701495 
1// RUN: %clang_cc1 -fsyntax-only -Wunused-function -verify %s
2// RUN: %clang_cc1 -fsyntax-only -verify -Wunused %s
3// RUN: %clang_cc1 -fsyntax-only -verify -Wall %s
4
5void foo() {}
6static void f2() {}
7static void f1() {f2();} // expected-warning{{unused}}
8
9static int f0() { return 17; } // expected-warning{{unused}}
10int x = sizeof(f0());
11
12static void f3();
13extern void f3() { } // expected-warning{{unused}}
14
15// FIXME: This will trigger a warning when it should not.
16// Update once PR6281 is fixed.
17//inline static void f4();
18//void f4() { }
19
20static void __attribute__((used)) f5() {}
21static void f6();
22static void __attribute__((used)) f6();
23static void f6() {};
24
25static void f7(void);
26void f8(void(*a0)(void));
27void f9(void) { f8(f7); }
28static void f7(void) {}
29
30__attribute__((unused)) static void bar(void);
31void bar(void) { }
32
33__attribute__((constructor)) static void bar2(void);
34void bar2(void) { }
35
36__attribute__((destructor)) static void bar3(void);
37void bar3(void) { }
38
39static void f10(void); // expected-warning{{unused}}
40static void f10(void);
41
42static void f11(void);
43static void f11(void) { }  // expected-warning{{unused}}
44
45static void f12(void) { }  // expected-warning{{unused}}
46static void f12(void);
47