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// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -emit-llvm %s -fstrict-vtable-pointers -O1 -o - -disable-llvm-passes | FileCheck %s
struct A {
virtual void foo();
};
struct D : A {
void foo();
};
// CHECK-LABEL: define{{.*}} void @_Z21testExternallyVisiblev()
void testExternallyVisible() {
A *a = new A;
// CHECK: load {{.*}} !invariant.group ![[MD:[0-9]+]]
a->foo();
D *d = new D;
// CHECK: call void @_ZN1DC1Ev(
// CHECK: load {{.*}} !invariant.group ![[MD]]
d->foo();
A *a2 = d;
// CHECK: load {{.*}} !invariant.group ![[MD]]
a2->foo();
}
// CHECK-LABEL: {{^}}}
namespace {
struct B {
virtual void bar();
};
struct C : B {
void bar();
};
}
// CHECK-LABEL: define{{.*}} void @_Z21testInternallyVisibleb(
void testInternallyVisible(bool p) {
B *b = new B;
// CHECK: = load {{.*}}, !invariant.group ![[MD]]
b->bar();
// CHECK: call void @_ZN12_GLOBAL__N_11CC1Ev(
C *c = new C;
// CHECK: = load {{.*}}, !invariant.group ![[MD]]
c->bar();
}
// Checking A::A()
// CHECK-LABEL: define linkonce_odr void @_ZN1AC2Ev(
// CHECK: store {{.*}}, !invariant.group ![[MD]]
// CHECK-LABEL: {{^}}}
// Checking D::D()
// CHECK-LABEL: define linkonce_odr void @_ZN1DC2Ev(
// CHECK: = call i8* @llvm.launder.invariant.group.p0i8(i8*
// CHECK: call void @_ZN1AC2Ev(%struct.A*
// CHECK: store {{.*}} !invariant.group ![[MD]]
// Checking B::B()
// CHECK-LABEL: define internal void @_ZN12_GLOBAL__N_11BC2Ev(
// CHECK: store {{.*}}, !invariant.group ![[MD]]
// Checking C::C()
// CHECK-LABEL: define internal void @_ZN12_GLOBAL__N_11CC2Ev(
// CHECK: store {{.*}}, !invariant.group ![[MD]]
// CHECK: ![[MD]] = !{}
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