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// RUN: %clang_cc1 -triple i386-unknown-unknown -std=c++11 %s -emit-llvm -o - | FileCheck %s
namespace Test1 {
struct A {
virtual int f() final;
};
// CHECK-LABEL: define i32 @_ZN5Test11fEPNS_1AE
int f(A *a) {
// CHECK: call i32 @_ZN5Test11A1fEv
return a->f();
}
}
namespace Test2 {
struct A final {
virtual int f();
};
// CHECK-LABEL: define i32 @_ZN5Test21fEPNS_1AE
int f(A *a) {
// CHECK: call i32 @_ZN5Test21A1fEv
return a->f();
}
}
namespace Test3 {
struct A {
virtual int f();
};
struct B final : A { };
// CHECK-LABEL: define i32 @_ZN5Test31fEPNS_1BE
int f(B *b) {
// CHECK: call i32 @_ZN5Test31A1fEv
return b->f();
}
// CHECK-LABEL: define i32 @_ZN5Test31fERNS_1BE
int f(B &b) {
// CHECK: call i32 @_ZN5Test31A1fEv
return b.f();
}
// CHECK-LABEL: define i32 @_ZN5Test31fEPv
int f(void *v) {
// CHECK: call i32 @_ZN5Test31A1fEv
return static_cast<B*>(v)->f();
}
}
namespace Test4 {
struct A {
virtual void f();
};
struct B final : A {
virtual void f();
};
// CHECK-LABEL: define void @_ZN5Test41fEPNS_1BE
void f(B* d) {
// CHECK: call void @_ZN5Test41B1fEv
static_cast<A*>(d)->f();
}
}
namespace Test5 {
struct A {
virtual void f();
};
struct B : A {
virtual void f();
};
struct C final : B {
};
// CHECK-LABEL: define void @_ZN5Test51fEPNS_1CE
void f(C* d) {
// FIXME: It should be possible to devirtualize this case, but that is
// not implemented yet.
// CHECK: getelementptr
// CHECK-NEXT: %[[FUNC:.*]] = load
// CHECK-NEXT: call void %[[FUNC]]
static_cast<A*>(d)->f();
}
}
namespace Test6 {
struct A {
virtual ~A();
};
struct B : public A {
virtual ~B();
};
struct C {
virtual ~C();
};
struct D final : public C, public B {
};
// CHECK-LABEL: define void @_ZN5Test61fEPNS_1DE
void f(D* d) {
// CHECK: call void @_ZN5Test61DD1Ev
static_cast<A*>(d)->~A();
}
}
namespace Test7 {
struct foo {
virtual void g() {}
};
struct bar {
virtual int f() { return 0; }
};
struct zed final : public foo, public bar {
int z;
virtual int f() {return z;}
};
// CHECK-LABEL: define i32 @_ZN5Test71fEPNS_3zedE
int f(zed *z) {
// CHECK: alloca
// CHECK-NEXT: store
// CHECK-NEXT: load
// CHECK-NEXT: call i32 @_ZN5Test73zed1fEv
// CHECK-NEXT: ret
return static_cast<bar*>(z)->f();
}
}
namespace Test8 {
struct A { virtual ~A() {} };
struct B {
int b;
virtual int foo() { return b; }
};
struct C final : A, B { };
// CHECK-LABEL: define i32 @_ZN5Test84testEPNS_1CE
int test(C *c) {
// CHECK: %[[THIS:.*]] = phi
// CHECK-NEXT: call i32 @_ZN5Test81B3fooEv(%"struct.Test8::B"* %[[THIS]])
return static_cast<B*>(c)->foo();
}
}
namespace Test9 {
struct A {
int a;
};
struct B {
int b;
};
struct C : public B, public A {
};
struct RA {
virtual A *f() {
return 0;
}
};
struct RC final : public RA {
virtual C *f() {
C *x = new C();
x->a = 1;
x->b = 2;
return x;
}
};
// CHECK: define {{.*}} @_ZN5Test91fEPNS_2RCE
A *f(RC *x) {
// FIXME: It should be possible to devirtualize this case, but that is
// not implemented yet.
// CHECK: getelementptr
// CHECK-NEXT: %[[FUNC:.*]] = load
// CHECK-NEXT: bitcast
// CHECK-NEXT: = call {{.*}} %[[FUNC]]
return static_cast<RA*>(x)->f();
}
}
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