diff options
Diffstat (limited to 'clang/test/CodeGenCXX/apple-kext-indirect-call.cpp')
| -rw-r--r-- | clang/test/CodeGenCXX/apple-kext-indirect-call.cpp | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/apple-kext-indirect-call.cpp b/clang/test/CodeGenCXX/apple-kext-indirect-call.cpp index 6102072ada0..82822d4142a 100644 --- a/clang/test/CodeGenCXX/apple-kext-indirect-call.cpp +++ b/clang/test/CodeGenCXX/apple-kext-indirect-call.cpp @@ -1,5 +1,7 @@ // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fapple-kext -emit-llvm -o - %s | FileCheck %s +// CHECK: @_ZTV5TemplIiE = internal unnamed_addr constant [5 x i8*] [i8* null, i8* bitcast ({ i8*, i8* }* @_ZTI5TemplIiE to i8*), i8* bitcast (void (%struct.Templ*)* @_ZN5TemplIiE1fEv to i8*), i8* bitcast (void (%struct.Templ*)* @_ZN5TemplIiE1gEv to i8*), i8* null] + struct Base { virtual void abc(void) const; }; @@ -12,3 +14,30 @@ void FUNC(Base* p) { // CHECK: getelementptr inbounds (void (%struct.Base*)** bitcast ([4 x i8*]* @_ZTV4Base to void (%struct.Base*)**), i64 2) // CHECK-NOT: call void @_ZNK4Base3abcEv + +template<class T> +struct Templ { + virtual void f() {} + virtual void g() {} +}; +template<class T> +struct SubTempl : public Templ<T> { + virtual void f() {} // override + virtual void g() {} // override +}; + +void f(SubTempl<int>* t) { + // Qualified calls go through the (qualified) vtable in apple-kext mode. + // Since t's this pointer points to SubTempl's vtable, this call needs + // to load Templ<int>'s vtable, so that needs to be defined in this TU, + // which in turn means that Templ<int>::g needs to be instantiated in this TU, + // for it's referenced by the vtable. + // (This happens only in apple-kext mode; elsewhere virtual calls can always + // use the vtable pointer off this instead of having to load the vtable + // symbol.) + t->Templ::f(); +} + +// CHECK: getelementptr inbounds (void (%struct.Templ*)** bitcast ([5 x i8*]* @_ZTV5TemplIiE to void (%struct.Templ*)**), i64 2) +// CHECK: define internal void @_ZN5TemplIiE1fEv(%struct.Templ* %this) +// CHECK: define internal void @_ZN5TemplIiE1gEv(%struct.Templ* %this) |
