diff options
Diffstat (limited to 'test/CodeGenCXX/devirtualize-virtual-function-calls-final.cpp')
-rw-r--r-- | test/CodeGenCXX/devirtualize-virtual-function-calls-final.cpp | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/test/CodeGenCXX/devirtualize-virtual-function-calls-final.cpp b/test/CodeGenCXX/devirtualize-virtual-function-calls-final.cpp index b90620ab60..2ab2f759cf 100644 --- a/test/CodeGenCXX/devirtualize-virtual-function-calls-final.cpp +++ b/test/CodeGenCXX/devirtualize-virtual-function-calls-final.cpp @@ -241,3 +241,53 @@ namespace Test10 { return static_cast<A *>(b)->f(); } } + +namespace Test11 { + // Check that the definitions of Derived's operators are emitted. + + // CHECK-LABEL: define linkonce_odr void @_ZN6Test111SIiE4foo1Ev( + // CHECK: call void @_ZN6Test111SIiE7DerivedclEv( + // CHECK: call zeroext i1 @_ZN6Test111SIiE7DerivedeqERKNS_4BaseE( + // CHECK: call zeroext i1 @_ZN6Test111SIiE7DerivedntEv( + // CHECK: call dereferenceable(4) %"class.Test11::Base"* @_ZN6Test111SIiE7DerivedixEi( + // CHECK: define linkonce_odr void @_ZN6Test111SIiE7DerivedclEv( + // CHECK: define linkonce_odr zeroext i1 @_ZN6Test111SIiE7DerivedeqERKNS_4BaseE( + // CHECK: define linkonce_odr zeroext i1 @_ZN6Test111SIiE7DerivedntEv( + // CHECK: define linkonce_odr dereferenceable(4) %"class.Test11::Base"* @_ZN6Test111SIiE7DerivedixEi( + class Base { + public: + virtual void operator()() {} + virtual bool operator==(const Base &other) { return false; } + virtual bool operator!() { return false; } + virtual Base &operator[](int i) { return *this; } + }; + + template<class T> + struct S { + class Derived final : public Base { + public: + void operator()() override {} + bool operator==(const Base &other) override { return true; } + bool operator!() override { return true; } + Base &operator[](int i) override { return *this; } + }; + + Derived *ptr = nullptr, *ptr2 = nullptr; + + void foo1() { + if (ptr && ptr2) { + // These calls get devirtualized. Linkage fails if the definitions of + // the called functions are not emitted. + (*ptr)(); + (void)(*ptr == *ptr2); + (void)(!(*ptr)); + (void)((*ptr)[1]); + } + } + }; + + void foo2() { + S<int> *s = new S<int>; + s->foo1(); + } +} |