1 // RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -emit-llvm %s -fstrict-vtable-pointers -O1 -o - -disable-llvm-passes | FileCheck %s
2
3 struct A {
4 virtual void foo();
5 };
6
7 struct D : A {
8 void foo();
9 };
10
11 // CHECK-LABEL: define{{.*}} void @_Z21testExternallyVisiblev()
testExternallyVisible()12 void testExternallyVisible() {
13 A *a = new A;
14
15 // CHECK: load {{.*}} !invariant.group ![[MD:[0-9]+]]
16 a->foo();
17
18 D *d = new D;
19 // CHECK: call void @_ZN1DC1Ev(
20 // CHECK: load {{.*}} !invariant.group ![[MD]]
21 d->foo();
22 A *a2 = d;
23 // CHECK: load {{.*}} !invariant.group ![[MD]]
24 a2->foo();
25 }
26 // CHECK-LABEL: {{^}}}
27
28 namespace {
29
30 struct B {
31 virtual void bar();
32 };
33
34 struct C : B {
35 void bar();
36 };
37
38 }
39
40 // CHECK-LABEL: define{{.*}} void @_Z21testInternallyVisibleb(
testInternallyVisible(bool p)41 void testInternallyVisible(bool p) {
42 B *b = new B;
43 // CHECK: = load {{.*}}, !invariant.group ![[MD]]
44 b->bar();
45
46 // CHECK: call void @_ZN12_GLOBAL__N_11CC1Ev(
47 C *c = new C;
48 // CHECK: = load {{.*}}, !invariant.group ![[MD]]
49 c->bar();
50 }
51
52 // Checking A::A()
53 // CHECK-LABEL: define linkonce_odr void @_ZN1AC2Ev(
54 // CHECK: store {{.*}}, !invariant.group ![[MD]]
55 // CHECK-LABEL: {{^}}}
56
57 // Checking D::D()
58 // CHECK-LABEL: define linkonce_odr void @_ZN1DC2Ev(
59 // CHECK: = call i8* @llvm.launder.invariant.group.p0i8(i8*
60 // CHECK: call void @_ZN1AC2Ev(%struct.A*
61 // CHECK: store {{.*}} !invariant.group ![[MD]]
62
63 // Checking B::B()
64 // CHECK-LABEL: define internal void @_ZN12_GLOBAL__N_11BC2Ev(
65 // CHECK: store {{.*}}, !invariant.group ![[MD]]
66
67 // Checking C::C()
68 // CHECK-LABEL: define internal void @_ZN12_GLOBAL__N_11CC2Ev(
69 // CHECK: store {{.*}}, !invariant.group ![[MD]]
70
71 // CHECK: ![[MD]] = !{}
72