| // RUN: %clang_cc1 -Wno-microsoft -fno-rtti -std=c++11 -emit-llvm %s -o - -triple=i386-pc-win32 | FileCheck %s |
| |
| struct U; |
| static_assert(sizeof(void (U::*)()) == 2 * sizeof(void*) + 2 * sizeof(int), ""); |
| |
| struct A { int a; }; |
| struct B { int b; }; |
| struct I { union { struct { int a, b; }; }; }; |
| |
| struct S { int a, b; void f(); virtual void g(); }; |
| struct M : A, B { int a, b; void f(); virtual void g(); }; |
| struct V : virtual A { int a, b; void f(); virtual void g(); }; |
| struct U { int a, b; void f(); virtual void g(); }; |
| |
| struct C { virtual void f(); }; |
| struct D { virtual void g(); }; |
| struct O : C, D { virtual void g(); }; // override of non-primary |
| |
| // Test data member pointers. |
| template <typename T, int T::*F> |
| int ReadField(T &o) { |
| return F ? o.*F : 0; |
| } |
| |
| // Redeclare some of the classes so that the implicit attribute goes on the most |
| // recent redeclaration rather than the definition. |
| struct V; |
| |
| void ReadFields() { |
| A a; |
| I i; |
| S s; |
| M m; |
| V v; |
| U u; |
| ReadField<S, &S::a>(s); |
| ReadField<M, &M::a>(m); |
| ReadField<V, &V::a>(v); |
| ReadField<U, &U::a>(u); |
| ReadField<S, &S::b>(s); |
| ReadField<M, &M::b>(m); |
| ReadField<V, &V::b>(v); |
| ReadField<U, &U::b>(u); |
| ReadField<S, nullptr>(s); |
| ReadField<M, nullptr>(m); |
| ReadField<V, nullptr>(v); |
| ReadField<U, nullptr>(u); |
| |
| // Non-polymorphic null data memptr vs first field memptr. |
| ReadField<A, &A::a>(a); |
| ReadField<A, nullptr>(a); |
| |
| // Indirect fields injected from anonymous unions and structs |
| ReadField<I, &I::a>(i); |
| ReadField<I, &I::b>(i); |
| } |
| |
| // CHECK-LABEL: define {{.*}}ReadFields |
| // CHECK: call {{.*}} @"\01??$ReadField@US@@$03@@YAHAAUS@@@Z" |
| // CHECK: call {{.*}} @"\01??$ReadField@UM@@$0M@@@YAHAAUM@@@Z" |
| // CHECK: call {{.*}} @"\01??$ReadField@UV@@$F7A@@@YAHAAUV@@@Z" |
| // CHECK: call {{.*}} @"\01??$ReadField@UU@@$G3A@A@@@YAHAAUU@@@Z" |
| // CHECK: call {{.*}} @"\01??$ReadField@US@@$07@@YAHAAUS@@@Z" |
| // CHECK: call {{.*}} @"\01??$ReadField@UM@@$0BA@@@YAHAAUM@@@Z" |
| // CHECK: call {{.*}} @"\01??$ReadField@UV@@$FM@A@@@YAHAAUV@@@Z" |
| // CHECK: call {{.*}} @"\01??$ReadField@UU@@$G7A@A@@@YAHAAUU@@@Z" |
| |
| // MSVC mangles null member pointers in function templates wrong, but it gets |
| // them right in class templates. |
| // CHECK: call {{.*}} @"\01??$ReadField@US@@$0A@@@YAHAAUS@@@Z" |
| // CHECK: call {{.*}} @"\01??$ReadField@UM@@$0A@@@YAHAAUM@@@Z" |
| // CHECK: call {{.*}} @"\01??$ReadField@UV@@$0A@@@YAHAAUV@@@Z" |
| // CHECK: call {{.*}} @"\01??$ReadField@UU@@$0A@@@YAHAAUU@@@Z" |
| |
| // Non-polymorphic null data memptr vs first field memptr. MSVC mangles these |
| // the same. |
| // CHECK: call {{.*}} @"\01??$ReadField@UA@@$0A@@@YAHAAUA@@@Z" |
| // CHECK: call {{.*}} @"\01??$ReadField@UA@@$0?0@@YAHAAUA@@@Z" |
| |
| // Indirect fields are handled as-if they were simply members of their enclosing |
| // record. |
| // CHECK: call {{.*}} @"\01??$ReadField@UI@@$0A@@@YAHAAUI@@@Z" |
| // CHECK: call {{.*}} @"\01??$ReadField@UI@@$03@@YAHAAUI@@@Z" |
| |
| // Test member function pointers. |
| template <typename T, void (T::*MFP)()> |
| void CallMethod(T &o) { |
| (o.*MFP)(); |
| } |
| |
| void CallMethods() { |
| S s; |
| M m; |
| V v; |
| U u; |
| O o; |
| |
| // Non-virtual methods. |
| CallMethod<S, &S::f>(s); |
| CallMethod<M, &M::f>(m); |
| CallMethod<V, &V::f>(v); |
| CallMethod<U, &U::f>(u); |
| |
| // Virtual methods requiring thunk mangling. |
| CallMethod<S, &S::g>(s); |
| CallMethod<M, &M::g>(m); |
| CallMethod<V, &V::g>(v); |
| CallMethod<U, &U::g>(u); |
| |
| // A member pointer for a non-primary vbase will have a non-zero this |
| // adjustment. |
| CallMethod<O, &O::g>(o); |
| |
| // Null member pointers. |
| CallMethod<S, nullptr>(s); |
| CallMethod<M, nullptr>(m); |
| CallMethod<V, nullptr>(v); |
| CallMethod<U, nullptr>(u); |
| } |
| |
| // CHECK-LABEL: define {{.*}}CallMethods |
| // CHECK: call {{.*}} @"\01??$CallMethod@US@@$1?f@1@QAEXXZ@@YAXAAUS@@@Z" |
| // CHECK: call {{.*}} @"\01??$CallMethod@UM@@$H?f@1@QAEXXZA@@@YAXAAUM@@@Z" |
| // CHECK: call {{.*}} @"\01??$CallMethod@UV@@$I?f@1@QAEXXZA@A@@@YAXAAUV@@@Z" |
| // CHECK: call {{.*}} @"\01??$CallMethod@UU@@$J?f@1@QAEXXZA@A@A@@@YAXAAUU@@@Z" |
| |
| // PR17034: MSVC reuses the same thunk for every virtual g method because they |
| // are all at vftable offset zero. They then mangle the name of the first thunk |
| // created into the name of the template instantiation, which is definitely a |
| // bug. We don't follow them here. Instead of ?_91@ backref below, they would |
| // get ?_9S@@ in every instantiation after the first. |
| |
| // CHECK: call {{.*}} @"\01??$CallMethod@US@@$1??_91@$BA@AE@@YAXAAUS@@@Z" |
| // CHECK: call {{.*}} @"\01??$CallMethod@UM@@$H??_91@$BA@AEA@@@YAXAAUM@@@Z" |
| // CHECK: call {{.*}} @"\01??$CallMethod@UV@@$I??_91@$BA@AEA@A@@@YAXAAUV@@@Z" |
| // CHECK: call {{.*}} @"\01??$CallMethod@UU@@$J??_91@$BA@AEA@A@A@@@YAXAAUU@@@Z" |
| |
| // CHECK: call {{.*}} @"\01??$CallMethod@UO@@$H??_91@$BA@AE3@@YAXAAUO@@@Z" |
| |
| // CHECK: call {{.*}} @"\01??$CallMethod@US@@$0A@@@YAXAAUS@@@Z" |
| // CHECK: call {{.*}} @"\01??$CallMethod@UM@@$0A@@@YAXAAUM@@@Z" |
| // CHECK: call {{.*}} @"\01??$CallMethod@UV@@$0A@@@YAXAAUV@@@Z" |
| // CHECK: call {{.*}} @"\01??$CallMethod@UU@@$0A@@@YAXAAUU@@@Z" |
| |
| namespace NegativeNVOffset { |
| struct A {}; |
| struct B : virtual A {}; |
| struct C : B { |
| virtual void f(); |
| }; |
| } |
| |
| template void CallMethod<NegativeNVOffset::C, &NegativeNVOffset::C::f>(NegativeNVOffset::C &); |
| |
| // CHECK-LABEL: define {{.*}} @"\01??$CallMethod@UC@NegativeNVOffset@@$I??_912@$BA@AEPPPPPPPM@A@@@YAXAAUC@NegativeNVOffset@@@Z" |