forked from OSchip/llvm-project
138 lines
1.9 KiB
C++
138 lines
1.9 KiB
C++
// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
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namespace Test1 {
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// Check that we emit a non-virtual thunk for C::f.
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struct A {
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virtual void f();
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};
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struct B {
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virtual void f();
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};
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struct C : A, B {
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virtual void c();
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virtual void f();
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};
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// CHECK: define void @_ZThn8_N5Test11C1fEv(
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void C::f() { }
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}
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namespace Test2 {
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// Check that we emit a thunk for B::f since it's overriding a virtual base.
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struct A {
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virtual void f();
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};
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struct B : virtual A {
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virtual void b();
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virtual void f();
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};
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// CHECK: define void @_ZTv0_n24_N5Test21B1fEv(
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void B::f() { }
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}
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namespace Test3 {
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// Check that we emit a covariant thunk for B::f.
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struct V1 { };
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struct V2 : virtual V1 { };
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struct A {
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virtual V1 *f();
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};
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struct B : A {
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virtual void b();
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virtual V2 *f();
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};
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// CHECK: define %{{.*}}* @_ZTch0_v0_n24_N5Test31B1fEv(
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V2 *B::f() { return 0; }
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}
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namespace Test4 {
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// Check that the thunk for 'C::f' has the same visibility as the function itself.
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struct A {
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virtual void f();
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};
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struct B {
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virtual void f();
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};
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struct __attribute__((visibility("protected"))) C : A, B {
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virtual void c();
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virtual void f();
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};
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// CHECK: define protected void @_ZThn8_N5Test41C1fEv(
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void C::f() { }
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}
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// This is from Test5:
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// CHECK: define linkonce_odr void @_ZTv0_n24_N5Test51B1fEv
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// Check that the thunk gets internal linkage.
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namespace {
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struct A {
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virtual void f();
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};
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struct B {
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virtual void f();
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};
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struct C : A, B {
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virtual void c();
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virtual void f();
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};
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// CHECK: define internal void @_ZThn8_N12_GLOBAL__N_11C1fEv(
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void C::f() { }
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}
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// Force C::f to be used.
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void f() {
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C c;
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c.f();
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}
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namespace Test5 {
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// Check that the thunk for 'B::f' gets the same linkage as the function itself.
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struct A {
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virtual void f();
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};
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struct B : virtual A {
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virtual void f() { }
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};
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void f(B b) {
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b.f();
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}
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}
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