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llvm-tms34010/clang/test/CodeGenCXX/ptrauth-explicit-vtable-pointer-control.cpp
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Akira Hatanaka 44cb124f60 [CodeGen] Mark weak vtables unnamed_addr on duplicable-vtable targets (#205930) 
When a target's `getVTableUniqueness()` is `UniqueIfStrongLinkage`, as
on Apple Mach-O, the platform may emit a class's weak vtable as a
separate copy in more than one linkage unit. A symbol that can
legitimately exist at several addresses has no meaningful address, so
such a vtable can be marked `unnamed_addr`.

On Mach-O, a weak vtable that is `unnamed_addr` lowers to a
`.weak_def_can_be_hidden` definition, which the static linker coalesces
and then drops from the dynamic export trie. Keeping these vtables out
of the exported symbol set cuts the work dyld has to do at load time.

#200108 dropped `unnamed_addr` from vtables because the exact
`dynamic_cast` optimization compares an object's vtable pointer against
a known vtable address and depends on that address being unique. Adding
`unnamed_addr` is safe here because that optimization is never performed
for these weak vtables, so nothing relies on them having a unique
address.

rdar://179929460
2026-07-09 11:06:31 -07:00

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// RUN: %clang_cc1 %s -x c++ -std=c++20 -triple arm64-apple-ios -fptrauth-calls -fptrauth-intrinsics \
// RUN: -emit-llvm -o - | FileCheck --check-prefixes=CHECK,NODISC,DARWIN %s
// RUN: %clang_cc1 %s -x c++ -std=c++20 -triple arm64-apple-ios -fptrauth-calls -fptrauth-intrinsics \
// RUN: -fptrauth-vtable-pointer-type-discrimination \
// RUN: -emit-llvm -o - | FileCheck --check-prefixes=CHECK,TYPE,DARWIN %s
// RUN: %clang_cc1 %s -x c++ -std=c++20 -triple arm64-apple-ios -fptrauth-calls -fptrauth-intrinsics \
// RUN: -fptrauth-vtable-pointer-address-discrimination \
// RUN: -emit-llvm -o - | FileCheck --check-prefixes=CHECK,ADDR,DARWIN %s
// RUN: %clang_cc1 %s -x c++ -std=c++20 -triple arm64-apple-ios -fptrauth-calls -fptrauth-intrinsics \
// RUN: -fptrauth-vtable-pointer-type-discrimination \
// RUN: -fptrauth-vtable-pointer-address-discrimination \
// RUN: -emit-llvm -o - | FileCheck --check-prefixes=CHECK,BOTH,DARWIN %s
// RUN: %clang_cc1 %s -x c++ -std=c++20 -triple aarch64-linux-gnu -fptrauth-calls -fptrauth-intrinsics \
// RUN: -emit-llvm -o - | FileCheck --check-prefixes=CHECK,NODISC,LINUX %s
// RUN: %clang_cc1 %s -x c++ -std=c++20 -triple aarch64-linux-gnu -fptrauth-calls -fptrauth-intrinsics \
// RUN: -fptrauth-vtable-pointer-type-discrimination \
// RUN: -emit-llvm -o - | FileCheck --check-prefixes=CHECK,TYPE,LINUX %s
// RUN: %clang_cc1 %s -x c++ -std=c++20 -triple aarch64-linux-gnu -fptrauth-calls -fptrauth-intrinsics \
// RUN: -fptrauth-vtable-pointer-address-discrimination \
// RUN: -emit-llvm -o - | FileCheck --check-prefixes=CHECK,ADDR,LINUX %s
// RUN: %clang_cc1 %s -x c++ -std=c++20 -triple aarch64-linux-gnu -fptrauth-calls -fptrauth-intrinsics \
// RUN: -fptrauth-vtable-pointer-type-discrimination \
// RUN: -fptrauth-vtable-pointer-address-discrimination \
// RUN: -emit-llvm -o - | FileCheck --check-prefixes=CHECK,BOTH,LINUX %s
#include <ptrauth.h>
namespace test1 {
#define authenticated(a...) ptrauth_cxx_vtable_pointer(a)
struct NoExplicitAuth {
virtual ~NoExplicitAuth();
virtual void f();
virtual void g();
};
struct authenticated(no_authentication, no_address_discrimination, no_extra_discrimination) ExplicitlyDisableAuth {
virtual ~ExplicitlyDisableAuth();
virtual void f();
virtual void g();
};
struct authenticated(default_key, address_discrimination, default_extra_discrimination) ExplicitAddressDiscrimination {
virtual ~ExplicitAddressDiscrimination();
virtual void f();
virtual void g();
};
struct authenticated(default_key, no_address_discrimination, default_extra_discrimination) ExplicitNoAddressDiscrimination {
virtual ~ExplicitNoAddressDiscrimination();
virtual void f();
virtual void g();
};
struct authenticated(default_key, default_address_discrimination, no_extra_discrimination) ExplicitNoExtraDiscrimination {
virtual ~ExplicitNoExtraDiscrimination();
virtual void f();
virtual void g();
};
struct authenticated(default_key, default_address_discrimination, type_discrimination) ExplicitTypeDiscrimination {
virtual ~ExplicitTypeDiscrimination();
virtual void f();
virtual void g();
};
struct authenticated(default_key, default_address_discrimination, custom_discrimination, 42424) ExplicitCustomDiscrimination {
virtual ~ExplicitCustomDiscrimination();
virtual void f();
virtual void g();
};
// CHECK: @_ZTVN5test19ConstEvalE = external constant { [3 x ptr] }, align 8
// CHECK: @_ZN5test12ceE = global %{{.*}} { ptr ptrauth (ptr getelementptr inbounds inrange(-16, 8) ({ [3 x ptr] }, ptr @_ZTVN5test19ConstEvalE, i32 0, i32 0, i32 2), i32 2, i64 0, ptr @_ZN5test12ceE) }, align 8
// DARWIN: @_ZTVN5test116ConstEvalDerivedE = linkonce_odr unnamed_addr constant { [3 x ptr] } { [3 x ptr] [ptr null, ptr @_ZTIN5test116ConstEvalDerivedE, ptr ptrauth (ptr @_ZN5test19ConstEval1fEv, i32 0, i64 26259, ptr getelementptr inbounds ({ [3 x ptr] }, ptr @_ZTVN5test116ConstEvalDerivedE, i32 0, i32 0, i32 2))] },{{.*}}align 8
// LINUX: @_ZTVN5test116ConstEvalDerivedE = linkonce_odr constant { [3 x ptr] } { [3 x ptr] [ptr null, ptr @_ZTIN5test116ConstEvalDerivedE, ptr ptrauth (ptr @_ZN5test19ConstEval1fEv, i32 0, i64 26259, ptr getelementptr inbounds ({ [3 x ptr] }, ptr @_ZTVN5test116ConstEvalDerivedE, i32 0, i32 0, i32 2))] },{{.*}}align 8
// CHECK: @_ZN5test13cedE = global { ptr } { ptr ptrauth (ptr getelementptr inbounds inrange(-16, 8) ({ [3 x ptr] }, ptr @_ZTVN5test116ConstEvalDerivedE, i32 0, i32 0, i32 2), i32 2, i64 0, ptr @_ZN5test13cedE) }, align 8
struct authenticated(default_key, address_discrimination, no_extra_discrimination) ConstEval {
consteval ConstEval() {}
virtual void f();
};
// clang used to bail out with error message "could not emit constant value abstractly".
ConstEval ce;
struct ConstEvalDerived : public ConstEval {
public:
consteval ConstEvalDerived() {}
};
// clang used to emit an undef initializer.
ConstEvalDerived ced;
template <typename T>
struct SubClass : T {
virtual void g();
virtual T *h();
};
template <typename T>
SubClass<T> *make_subclass(T *);
struct authenticated(default_key, address_discrimination, type_discrimination) BasicStruct {
virtual ~BasicStruct();
};
template <typename T>
struct PrimaryBasicStruct : BasicStruct, T {};
template <typename T>
struct PrimaryBasicStruct<T> *make_multiple_primary(T *);
template <typename T>
struct VirtualSubClass : virtual T {
virtual void g();
virtual T *h();
};
template <typename T>
struct VirtualPrimaryStruct : virtual T, VirtualSubClass<T> {};
template <typename T>
struct VirtualPrimaryStruct<T> *make_virtual_primary(T *);
extern "C" {
// CHECK: @TVDisc_NoExplicitAuth = global i32 [[DISC_DEFAULT:49565]], align 4
int TVDisc_NoExplicitAuth = ptrauth_string_discriminator("_ZTVN5test114NoExplicitAuthE");
// CHECK: @TVDisc_ExplicitlyDisableAuth = global i32 [[DISC_DISABLED:24369]], align 4
int TVDisc_ExplicitlyDisableAuth = ptrauth_string_discriminator("_ZTVN5test121ExplicitlyDisableAuthE");
// CHECK: @TVDisc_ExplicitAddressDiscrimination = global i32 [[DISC_ADDR:56943]], align 4
int TVDisc_ExplicitAddressDiscrimination = ptrauth_string_discriminator("_ZTVN5test129ExplicitAddressDiscriminationE");
// CHECK: @TVDisc_ExplicitNoAddressDiscrimination = global i32 [[DISC_NO_ADDR:6022]], align 4
int TVDisc_ExplicitNoAddressDiscrimination = ptrauth_string_discriminator("_ZTVN5test131ExplicitNoAddressDiscriminationE");
// CHECK: @TVDisc_ExplicitNoExtraDiscrimination = global i32 [[DISC_NO_EXTRA:9072]], align 4
int TVDisc_ExplicitNoExtraDiscrimination = ptrauth_string_discriminator("_ZTVN5test129ExplicitNoExtraDiscriminationE");
// CHECK: @TVDisc_ExplicitTypeDiscrimination = global i32 [[DISC_TYPE:6177]], align 4
int TVDisc_ExplicitTypeDiscrimination = ptrauth_string_discriminator("_ZTVN5test126ExplicitTypeDiscriminationE");
// CHECK-LABEL: define{{.*}} void @test_default(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTADDR:%.*]] = load ptr, ptr {{%.*}}, align 8
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 0)
//
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[DISC_DEFAULT]])
//
// ADDR: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[VTADDRI64]])
//
// BOTH: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// BOTH: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 [[DISC_DEFAULT]])
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
void test_default(NoExplicitAuth *a) {
a->f();
}
// CHECK-LABEL: define{{.*}} void @test_disabled(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTADDR:%.*]] = load ptr, ptr {{%.*}}, align 8
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
// CHECK-NOT: call i64 @llvm.ptrauth.auth
void test_disabled(ExplicitlyDisableAuth *a) {
a->f();
}
// CHECK-LABEL: define{{.*}} void @test_addr_disc(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTADDR:%.*]] = load ptr, ptr {{%.*}}, align 8
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[VTADDRI64]])
//
// TYPE: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// TYPE: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 [[DISC_ADDR]])
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
//
// ADDR: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[VTADDRI64]])
//
// BOTH: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// BOTH: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 [[DISC_ADDR]])
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
void test_addr_disc(ExplicitAddressDiscrimination *a) {
a->f();
}
// CHECK-LABEL: define{{.*}} void @test_no_addr_disc(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTADDR:%.*]] = load ptr, ptr {{%.*}}, align 8
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 0)
//
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[DISC_NO_ADDR]])
//
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 0)
//
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[DISC_NO_ADDR]])
void test_no_addr_disc(ExplicitNoAddressDiscrimination *a) {
a->f();
}
// CHECK-LABEL: define{{.*}} void @test_no_extra_disc(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTADDR:%.*]] = load ptr, ptr {{%.*}}, align 8
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 0)
//
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 0)
//
// ADDR: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[VTADDRI64]])
//
// BOTH: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[VTADDRI64]])
void test_no_extra_disc(ExplicitNoExtraDiscrimination *a) {
a->f();
}
// CHECK-LABEL: define{{.*}} void @test_type_disc(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTADDR:%.*]] = load ptr, ptr {{%.*}}, align 8
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[DISC_TYPE]])
//
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[DISC_TYPE]])
//
// ADDR: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// ADDR: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 [[DISC_TYPE]])
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
//
// BOTH: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// BOTH: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 [[DISC_TYPE]])
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
void test_type_disc(ExplicitTypeDiscrimination *a) {
a->f();
}
// CHECK-LABEL: define{{.*}} void @test_custom_disc(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTADDR:%.*]] = load ptr, ptr {{%.*}}, align 8
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 42424)
//
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 42424)
//
// ADDR: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// ADDR: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 42424)
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
//
// BOTH: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// BOTH: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 42424)
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
void test_custom_disc(ExplicitCustomDiscrimination *a) {
a->f();
}
//
// Test some simple single inheritance cases.
// Codegen should be the same as the simple cases above once we have a vtable.
//
// CHECK-LABEL: define{{.*}} void @test_subclass_default(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTADDR:%.*]] = call noundef ptr @_ZN5test113make_subclass
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 0)
//
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[DISC_DEFAULT]])
//
// ADDR: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[VTADDRI64]])
//
// BOTH: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// BOTH: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 [[DISC_DEFAULT]])
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
void test_subclass_default(NoExplicitAuth *a) {
make_subclass(a)->f();
}
// CHECK-LABEL: define{{.*}} void @test_subclass_disabled(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTADDR:%.*]] = call noundef ptr @_ZN5test113make_subclass
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
// CHECK-NOT: call i64 @llvm.ptrauth.auth
void test_subclass_disabled(ExplicitlyDisableAuth *a) {
make_subclass(a)->f();
}
// CHECK-LABEL: define{{.*}} void @test_subclass_addr_disc(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTADDR:%.*]] = call noundef ptr @_ZN5test113make_subclass
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[VTADDRI64]])
//
// TYPE: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// TYPE: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 [[DISC_ADDR]])
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
//
// ADDR: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[VTADDRI64]])
//
// BOTH: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// BOTH: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 [[DISC_ADDR]])
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
void test_subclass_addr_disc(ExplicitAddressDiscrimination *a) {
make_subclass(a)->f();
}
// CHECK-LABEL: define{{.*}} void @test_subclass_no_addr_disc(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTADDR:%.*]] = call noundef ptr @_ZN5test113make_subclass
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 0)
//
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[DISC_NO_ADDR]])
//
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 0)
//
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[DISC_NO_ADDR]])
void test_subclass_no_addr_disc(ExplicitNoAddressDiscrimination *a) {
make_subclass(a)->f();
}
// CHECK-LABEL: define{{.*}} void @test_subclass_no_extra_disc(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTADDR:%.*]] = call noundef ptr @_ZN5test113make_subclass
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 0)
//
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 0)
//
// ADDR: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[VTADDRI64]])
//
// BOTH: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[VTADDRI64]])
void test_subclass_no_extra_disc(ExplicitNoExtraDiscrimination *a) {
make_subclass(a)->f();
}
// CHECK-LABEL: define{{.*}} void @test_subclass_type_disc(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTADDR:%.*]] = call noundef ptr @_ZN5test113make_subclass
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[DISC_TYPE]])
//
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[DISC_TYPE]])
//
// ADDR: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// ADDR: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 [[DISC_TYPE]])
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
//
// BOTH: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// BOTH: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 [[DISC_TYPE]])
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
void test_subclass_type_disc(ExplicitTypeDiscrimination *a) {
make_subclass(a)->f();
}
// CHECK-LABEL: define{{.*}} void @test_subclass_custom_disc(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTADDR:%.*]] = call noundef ptr @_ZN5test113make_subclass
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 42424)
//
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 42424)
//
// ADDR: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// ADDR: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 42424)
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
//
// BOTH: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// BOTH: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 42424)
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
void test_subclass_custom_disc(ExplicitCustomDiscrimination *a) {
make_subclass(a)->f();
}
//
// Test some simple multiple inheritance cases.
// Codegen should be the same as the simple cases above once we have a vtable.
//
// CHECK-LABEL: define{{.*}} void @test_multiple_default(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[CALL:%.*]] = call noundef ptr @_ZN5test121make_multiple_primary
// CHECK: [[VTADDR:%.*]] = getelementptr inbounds i8, ptr [[CALL]], i64 8
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 0)
//
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[DISC_DEFAULT]])
//
// ADDR: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[VTADDRI64]])
//
// BOTH: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// BOTH: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 [[DISC_DEFAULT]])
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
void test_multiple_default(NoExplicitAuth *a) {
make_multiple_primary(a)->f();
}
// CHECK-LABEL: define{{.*}} void @test_multiple_disabled(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[CALL:%.*]] = call noundef ptr @_ZN5test121make_multiple_primary
// CHECK: [[VTADDR:%.*]] = getelementptr inbounds i8, ptr [[CALL]], i64 8
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
// CHECK-NOT: call i64 @llvm.ptrauth.auth
void test_multiple_disabled(ExplicitlyDisableAuth *a) {
make_multiple_primary(a)->f();
}
// CHECK-LABEL: define{{.*}} void @test_multiple_custom_disc(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[CALL:%.*]] = call noundef ptr @_ZN5test121make_multiple_primary
// CHECK: [[VTADDR:%.*]] = getelementptr inbounds i8, ptr [[CALL]], i64 8
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 42424)
//
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 42424)
//
// ADDR: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// ADDR: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 42424)
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
//
// BOTH: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// BOTH: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 42424)
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
void test_multiple_custom_disc(ExplicitCustomDiscrimination *a) {
make_multiple_primary(a)->f();
}
//
// Test some virtual inheritance cases.
// Codegen should be the same as the simple cases above once we have a vtable,
// but twice for vtt/vtable. The names in the vtt version have "VTT" prefixes.
//
// CHECK-LABEL: define{{.*}} void @test_virtual_default(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTTADDR:%.*]] = call noundef ptr @_ZN5test120make_virtual_primary
// CHECK: [[VTTABLE:%.*]] = load ptr, ptr [[VTTADDR]], align 8
//
// NODISC: [[VTTABLEI64:%.*]] = ptrtoint ptr [[VTTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTTABLEI64]], i32 2, i64 0)
//
// TYPE: [[VTTABLEI64:%.*]] = ptrtoint ptr [[VTTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTTABLEI64]], i32 2, i64 [[DISC_DEFAULT]])
//
// ADDR: [[VTTADDRI64:%.*]] = ptrtoint ptr [[VTTADDR]] to i64
// ADDR: [[VTTABLEI64:%.*]] = ptrtoint ptr [[VTTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTTABLEI64]], i32 2, i64 [[VTTADDRI64]])
//
// BOTH: [[VTTADDRI64:%.*]] = ptrtoint ptr [[VTTADDR]] to i64
// BOTH: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTTADDRI64]], i64 [[DISC_DEFAULT]])
// BOTH: [[VTTABLEI64:%.*]] = ptrtoint ptr [[VTTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTTABLEI64]], i32 2, i64 [[BLEND]])
// CHECK: [[AUTHEDPTR:%.*]] = inttoptr i64 [[AUTHED]] to ptr
// CHECK: [[VBOFFPTR:%.*]] = getelementptr i8, ptr [[AUTHEDPTR]], i64 -48
// CHECK: [[VBOFFSET:%.*]] = load i64, ptr [[VBOFFPTR]]
// CHECK: [[VTADDR:%.*]] = getelementptr inbounds i8, ptr [[VTTADDR]], i64 [[VBOFFSET]]
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 0)
//
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[DISC_DEFAULT]])
//
// ADDR: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[VTADDRI64]])
//
// BOTH: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// BOTH: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 [[DISC_DEFAULT]])
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
void test_virtual_default(NoExplicitAuth *a) {
make_virtual_primary(a)->f();
}
// CHECK-LABEL: define{{.*}} void @test_virtual_disabled(ptr noundef {{%.*}}) {{#.*}} {
// CHECK-NOT: call i64 @llvm.ptrauth.auth
void test_virtual_disabled(ExplicitlyDisableAuth *a) {
make_virtual_primary(a)->f();
}
// CHECK-LABEL: define{{.*}} void @test_virtual_custom_disc(ptr noundef {{%.*}}) {{#.*}} {
// CHECK: [[VTTADDR:%.*]] = call noundef ptr @_ZN5test120make_virtual_primary
// CHECK: [[VTTABLE:%.*]] = load ptr, ptr [[VTTADDR]], align 8
//
// NODISC: [[VTTABLEI64:%.*]] = ptrtoint ptr [[VTTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTTABLEI64]], i32 2, i64 42424)
//
// TYPE: [[VTTABLEI64:%.*]] = ptrtoint ptr [[VTTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTTABLEI64]], i32 2, i64 42424)
//
// ADDR: [[VTTADDRI64:%.*]] = ptrtoint ptr [[VTTADDR]] to i64
// ADDR: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTTADDRI64]], i64 42424)
// ADDR: [[VTTABLEI64:%.*]] = ptrtoint ptr [[VTTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTTABLEI64]], i32 2, i64 [[BLEND]])
//
// BOTH: [[VTTADDRI64:%.*]] = ptrtoint ptr [[VTTADDR]] to i64
// BOTH: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTTADDRI64]], i64 42424)
// BOTH: [[VTTABLEI64:%.*]] = ptrtoint ptr [[VTTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTTABLEI64]], i32 2, i64 [[BLEND]])
// CHECK: [[AUTHEDPTR:%.*]] = inttoptr i64 [[AUTHED]] to ptr
// CHECK: [[VBOFFPTR:%.*]] = getelementptr i8, ptr [[AUTHEDPTR]], i64 -48
// CHECK: [[VBOFFSET:%.*]] = load i64, ptr [[VBOFFPTR]]
// CHECK: [[VTADDR:%.*]] = getelementptr inbounds i8, ptr [[VTTADDR]], i64 [[VBOFFSET]]
// CHECK: [[VTABLE:%.*]] = load ptr, ptr [[VTADDR]], align 8
//
// NODISC: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// NODISC: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 42424)
//
// TYPE: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// TYPE: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 42424)
//
// ADDR: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// ADDR: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 42424)
// ADDR: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// ADDR: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
//
// BOTH: [[VTADDRI64:%.*]] = ptrtoint ptr [[VTADDR]] to i64
// BOTH: [[BLEND:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[VTADDRI64]], i64 42424)
// BOTH: [[VTABLEI64:%.*]] = ptrtoint ptr [[VTABLE]] to i64
// BOTH: [[AUTHED:%.*]] = call i64 @llvm.ptrauth.auth(i64 [[VTABLEI64]], i32 2, i64 [[BLEND]])
void test_virtual_custom_disc(ExplicitCustomDiscrimination *a) {
make_virtual_primary(a)->f();
}
} // extern "C"
} // namespace test1
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