virtual-base-destructor-call.cpp revision 0691a5c83246604a89654e0dfc25870e742035b4
1// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s 2 3struct basic_ios{~basic_ios(); }; 4 5template<typename _CharT> struct basic_istream : virtual public basic_ios { 6 virtual ~basic_istream(){} 7}; 8 9template<typename _CharT> struct basic_iostream : public basic_istream<_CharT> 10{ 11 virtual ~basic_iostream(){} 12}; 13 14basic_iostream<char> res; 15 16int main() { 17} 18 19// basic_iostream's complete dtor calls its base dtor, then its 20// virtual base's dtor. 21// CHECK: define linkonce_odr void @_ZN14basic_iostreamIcED1Ev(%struct.basic_iostream* %this) unnamed_addr 22// CHECK: call void @_ZN14basic_iostreamIcED2Ev 23// CHECK: call void @_ZN9basic_iosD2Ev 24 25// basic_iostream's base dtor calls its non-virtual base dtor. 26// CHECK: define linkonce_odr void @_ZN14basic_iostreamIcED2Ev(%struct.basic_iostream* %this, i8** %vtt) unnamed_addr 27// CHECK: call void @_ZN13basic_istreamIcED2Ev 28// CHECK: } 29 30// basic_istream's base dtor is a no-op. 31// CHECK: define linkonce_odr void @_ZN13basic_istreamIcED2Ev(%struct.basic_istream* %this, i8** %vtt) unnamed_addr 32// CHECK-NOT: call 33// CHECK: } 34 35// basic_iostream's deleting dtor calls its complete dtor, then 36// operator delete(). 37// CHECK: define linkonce_odr void @_ZN14basic_iostreamIcED0Ev(%struct.basic_iostream* %this) unnamed_addr 38// CHECK: call void @_ZN14basic_iostreamIcED1Ev 39// CHECK: call void @_ZdlPv 40 41// basic_istream's complete dtor calls the base dtor, 42// then its virtual base's base dtor. 43// CHECK: define linkonce_odr void @_ZN13basic_istreamIcED1Ev(%struct.basic_istream* %this) unnamed_addr 44// CHECK: call void @_ZN13basic_istreamIcED2Ev 45// CHECK: call void @_ZN9basic_iosD2Ev 46 47// basic_istream's deleting dtor calls the complete dtor, then 48// operator delete(). 49// CHECK: define linkonce_odr void @_ZN13basic_istreamIcED0Ev(%struct.basic_istream* %this) unnamed_addr 50// CHECK: call void @_ZN13basic_istreamIcED1Ev 51// CHECK: call void @_ZdlPv 52