1// RUN: %clang_cc1 -fsyntax-only -Wused-but-marked-unused -Wunused-function -Wunneeded-internal-declaration -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{{not needed and will not be emitted}} 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 48// PR7923 49static void unused(void) { unused(); } // expected-warning{{not needed and will not be emitted}} 50 51// rdar://8728293 52static void cleanupMalloc(char * const * const allocation) { } 53void f13(void) { 54 char * const __attribute__((cleanup(cleanupMalloc))) a; 55 (void)a; 56} 57 58// rdar://12233989 59extern void a(void) __attribute__((unused)); 60extern void b(void) __attribute__((unused)); 61 62void b(void) 63{ 64} 65void a(void) 66{ 67 b(); 68} 69