derek.holloway
7502bf64a4
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72 lines
1.6 KiB
C++
72 lines
1.6 KiB
C++
// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -emit-llvm %s -fstrict-vtable-pointers -O1 -o - -disable-llvm-passes | FileCheck %s
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struct A {
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virtual void foo();
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};
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struct D : A {
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void foo();
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};
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// CHECK-LABEL: define{{.*}} void @_Z21testExternallyVisiblev()
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void testExternallyVisible() {
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A *a = new A;
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// CHECK: load {{.*}} !invariant.group ![[MD:[0-9]+]]
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a->foo();
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D *d = new D;
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// CHECK: call void @_ZN1DC1Ev(
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// CHECK: load {{.*}} !invariant.group ![[MD]]
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d->foo();
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A *a2 = d;
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// CHECK: load {{.*}} !invariant.group ![[MD]]
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a2->foo();
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}
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// CHECK-LABEL: {{^}}}
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namespace {
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struct B {
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virtual void bar();
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};
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struct C : B {
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void bar();
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};
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}
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// CHECK-LABEL: define{{.*}} void @_Z21testInternallyVisibleb(
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void testInternallyVisible(bool p) {
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B *b = new B;
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// CHECK: = load {{.*}}, !invariant.group ![[MD]]
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b->bar();
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// CHECK: call void @_ZN12_GLOBAL__N_11CC1Ev(
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C *c = new C;
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// CHECK: = load {{.*}}, !invariant.group ![[MD]]
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c->bar();
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}
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// Checking A::A()
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// CHECK-LABEL: define linkonce_odr void @_ZN1AC2Ev(
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// CHECK: store {{.*}}, !invariant.group ![[MD]]
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// CHECK-LABEL: {{^}}}
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// Checking D::D()
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// CHECK-LABEL: define linkonce_odr void @_ZN1DC2Ev(
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// CHECK: = call ptr @llvm.launder.invariant.group.p0(ptr
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// CHECK: call void @_ZN1AC2Ev(ptr
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// CHECK: store {{.*}} !invariant.group ![[MD]]
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// Checking B::B()
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// CHECK-LABEL: define internal void @_ZN12_GLOBAL__N_11BC2Ev(
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// CHECK: store {{.*}}, !invariant.group ![[MD]]
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// Checking C::C()
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// CHECK-LABEL: define internal void @_ZN12_GLOBAL__N_11CC2Ev(
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// CHECK: store {{.*}}, !invariant.group ![[MD]]
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// CHECK: ![[MD]] = !{}
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