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| author | dim <dim@FreeBSD.org> | 2015-05-27 18:47:56 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2015-05-27 18:47:56 +0000 |
| commit | 3191b2b32a96e1a6ee833fcca73e5c8e0c67ba65 (patch) | |
| tree | dbbd4047878da71c1a706e26ce05b4e7791b14cc /test/CodeGenCXX/apple-kext-indirect-call.cpp | |
| parent | 38d6f2e7f2ce51a5b3836d26596c6c34a3288752 (diff) | |
| download | FreeBSD-src-3191b2b32a96e1a6ee833fcca73e5c8e0c67ba65.zip FreeBSD-src-3191b2b32a96e1a6ee833fcca73e5c8e0c67ba65.tar.gz | |
Vendor import of clang trunk r238337:
https://llvm.org/svn/llvm-project/cfe/trunk@238337
Diffstat (limited to 'test/CodeGenCXX/apple-kext-indirect-call.cpp')
| -rw-r--r-- | test/CodeGenCXX/apple-kext-indirect-call.cpp | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/test/CodeGenCXX/apple-kext-indirect-call.cpp b/test/CodeGenCXX/apple-kext-indirect-call.cpp new file mode 100644 index 0000000..e4c03b5 --- /dev/null +++ b/test/CodeGenCXX/apple-kext-indirect-call.cpp @@ -0,0 +1,42 @@ +// 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; +}; + +void Base::abc(void) const {} + +void FUNC(Base* p) { + p->Base::abc(); +} + +// CHECK: getelementptr inbounds (void (%struct.Base*)*, 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, the call needs + // to load Templ<int>'s vtable. Hence, 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*)*, 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) |
