forked from OSchip/llvm-project
164 lines
3.2 KiB
C++
164 lines
3.2 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify -Wunused -Wunused-member-function -Wno-c++11-extensions -std=c++98 %s
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// RUN: %clang_cc1 -fsyntax-only -verify -Wunused -Wunused-member-function -std=c++11 %s
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static void f1(); // expected-warning{{unused}}
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namespace {
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void f2(); // expected-warning{{unused}}
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void f3() { } // expected-warning{{unused}}
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struct S {
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void m1() { } // expected-warning{{unused}}
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void m2(); // expected-warning{{unused}}
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void m3();
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S(const S&);
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void operator=(const S&);
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};
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template <typename T>
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struct TS {
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void m();
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};
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template <> void TS<int>::m() { } // expected-warning{{unused}}
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template <typename T>
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void tf() { }
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template <> void tf<int>() { } // expected-warning{{unused}}
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struct VS {
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virtual void vm() { }
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};
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struct SVS : public VS {
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void vm() { }
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};
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}
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void S::m3() { } // expected-warning{{unused}}
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static inline void f4() { }
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const unsigned int cx = 0;
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static int x1; // expected-warning{{unused}}
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namespace {
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int x2; // expected-warning{{unused}}
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struct S2 {
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static int x; // expected-warning{{unused}}
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};
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template <typename T>
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struct TS2 {
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static int x;
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};
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template <> int TS2<int>::x; // expected-warning{{unused}}
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}
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namespace PR8841 {
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// Ensure that friends of class templates are considered to have a dependent
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// context and not marked unused.
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namespace {
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template <typename T> struct X {
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friend bool operator==(const X&, const X&) { return false; }
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};
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}
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template <typename T> void template_test(X<T> x) {
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(void)(x == x);
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}
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void test() {
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X<int> x;
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template_test(x);
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}
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}
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namespace test4 {
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namespace { struct A {}; }
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void test(A a); // expected-warning {{unused function}}
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extern "C" void test4(A a);
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}
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namespace rdar8733476 {
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static void foo() { } // expected-warning {{not needed and will not be emitted}}
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template <int>
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void bar() {
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foo();
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}
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}
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namespace test5 {
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static int n = 0;
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static int &r = n;
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int f(int &);
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int k = f(r);
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// FIXME: We should produce warnings for both of these.
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static const int m = n;
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int x = sizeof(m);
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static const double d = 0.0;
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int y = sizeof(d);
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}
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namespace unused_nested {
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class outer {
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void func1();
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struct {
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void func2() {
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}
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} x;
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};
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}
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namespace unused {
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struct {
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void func() { // expected-warning {{unused member function}}
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}
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} x; // expected-warning {{unused variable}}
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}
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namespace test6 {
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typedef struct {
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void bar();
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} A;
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typedef struct {
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void bar(); // expected-warning {{unused member function 'bar'}}
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} *B;
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struct C {
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void bar();
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};
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}
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namespace test7
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{
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template<typename T>
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static inline void foo(T) { }
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// This should not emit an unused-function warning since it inherits
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// the static storage type from the base template.
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template<>
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inline void foo(int) { }
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// Partial specialization
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template<typename T, typename U>
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static inline void bar(T, U) { }
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template<typename U>
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inline void bar(int, U) { }
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template<>
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inline void bar(int, int) { }
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};
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namespace pr14776 {
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namespace {
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struct X {};
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}
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X a = X(); // expected-warning {{unused variable 'a'}}
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auto b = X(); // expected-warning {{unused variable 'b'}}
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}
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