xref: /aosp_15_r20/external/clang/test/CodeGenCXX/virtual-base-destructor-call.cpp (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 %s -triple %itanium_abi_triple -emit-llvm -o - | FileCheck %s
2*67e74705SXin Li 
3*67e74705SXin Li struct basic_ios{~basic_ios(); };
4*67e74705SXin Li 
5*67e74705SXin Li template<typename _CharT> struct basic_istream : virtual public basic_ios {
~basic_istreambasic_istream6*67e74705SXin Li   virtual ~basic_istream(){}
7*67e74705SXin Li };
8*67e74705SXin Li 
9*67e74705SXin Li template<typename _CharT> struct basic_iostream : public basic_istream<_CharT>
10*67e74705SXin Li {
~basic_iostreambasic_iostream11*67e74705SXin Li   virtual ~basic_iostream(){}
12*67e74705SXin Li };
13*67e74705SXin Li 
14*67e74705SXin Li basic_iostream<char> res;
15*67e74705SXin Li 
main()16*67e74705SXin Li int main() {
17*67e74705SXin Li }
18*67e74705SXin Li 
19*67e74705SXin Li // basic_iostream's complete dtor calls its base dtor, then its
20*67e74705SXin Li // virtual base's dtor.
21*67e74705SXin Li //  CHECK: define linkonce_odr {{.*}} @_ZN14basic_iostreamIcED1Ev(%struct.basic_iostream* {{.*}}%this) unnamed_addr
22*67e74705SXin Li //  CHECK: call {{.*}} @_ZN14basic_iostreamIcED2Ev
23*67e74705SXin Li //  CHECK: call {{.*}} @_ZN9basic_iosD2Ev
24*67e74705SXin Li 
25*67e74705SXin Li // basic_istream's complete dtor calls the base dtor,
26*67e74705SXin Li // then its virtual base's base dtor.
27*67e74705SXin Li //  CHECK: define linkonce_odr {{.*}} @_ZN13basic_istreamIcED1Ev(%struct.basic_istream* {{.*}}%this) unnamed_addr
28*67e74705SXin Li //  CHECK: call {{.*}} @_ZN13basic_istreamIcED2Ev
29*67e74705SXin Li //  CHECK: call {{.*}} @_ZN9basic_iosD2Ev
30*67e74705SXin Li 
31*67e74705SXin Li // basic_istream's deleting dtor calls the complete dtor, then
32*67e74705SXin Li // operator delete().
33*67e74705SXin Li //  CHECK: define linkonce_odr {{.*}} @_ZN13basic_istreamIcED0Ev(%struct.basic_istream* {{.*}}%this) unnamed_addr
34*67e74705SXin Li //  CHECK: call {{.*}} @_ZN13basic_istreamIcED1Ev
35*67e74705SXin Li //  CHECK: call {{.*}} @_ZdlPv
36*67e74705SXin Li 
37*67e74705SXin Li // basic_iostream's deleting dtor calls its complete dtor, then
38*67e74705SXin Li // operator delete().
39*67e74705SXin Li //  CHECK: define linkonce_odr {{.*}} @_ZN14basic_iostreamIcED0Ev(%struct.basic_iostream* {{.*}}%this) unnamed_addr
40*67e74705SXin Li //  CHECK: call {{.*}} @_ZN14basic_iostreamIcED1Ev
41*67e74705SXin Li //  CHECK: call {{.*}} @_ZdlPv
42*67e74705SXin Li 
43*67e74705SXin Li // basic_istream's base dtor is a no-op.
44*67e74705SXin Li //  CHECK: define linkonce_odr {{.*}} @_ZN13basic_istreamIcED2Ev(%struct.basic_istream* {{.*}}%this, i8** %vtt) unnamed_addr
45*67e74705SXin Li //  CHECK-NOT: call
46*67e74705SXin Li //  CHECK: }
47*67e74705SXin Li 
48*67e74705SXin Li // basic_iostream's base dtor calls its non-virtual base dtor.
49*67e74705SXin Li //  CHECK: define linkonce_odr {{.*}} @_ZN14basic_iostreamIcED2Ev(%struct.basic_iostream* {{.*}}%this, i8** %vtt) unnamed_addr
50*67e74705SXin Li //  CHECK: call {{.*}} @_ZN13basic_istreamIcED2Ev
51*67e74705SXin Li //  CHECK: }
52