106 lines · cpp
1// RUN: %clang_cc1 -triple arm64-apple-ios -fptrauth-calls -fapple-kext -fno-rtti -emit-llvm -o - %s | FileCheck %s2 3// CHECK: @_ZTV1A = unnamed_addr constant { [4 x ptr] } { [4 x ptr] [ptr null, ptr null, ptr ptrauth (ptr @_ZNK1A3abcEv, i32 0, i64 12401, ptr getelementptr inbounds ({ [4 x ptr] }, ptr @_ZTV1A, i32 0, i32 0, i32 2)), ptr null] }, align 84// CHECK: @_ZTV4Base = unnamed_addr constant { [4 x ptr] } { [4 x ptr] [ptr null, ptr null, ptr ptrauth (ptr @_ZNK4Base3abcEv, i32 0, i64 64320, ptr getelementptr inbounds ({ [4 x ptr] }, ptr @_ZTV4Base, i32 0, i32 0, i32 2)), ptr null] }, align 85// CHECK: @_ZTV8Derived2 = unnamed_addr constant { [5 x ptr] } { [5 x ptr] [ptr null, ptr null, ptr null, ptr ptrauth (ptr @_ZNK8Derived23efgEv, i32 0, i64 36603, ptr getelementptr inbounds ({ [5 x ptr] }, ptr @_ZTV8Derived2, i32 0, i32 0, i32 3)), ptr null] }, align 86// CHECK: @_ZTV2D2 = unnamed_addr constant { [5 x ptr] } { [5 x ptr] [ptr null, ptr null, ptr null, ptr ptrauth (ptr @_ZNK2D23abcEv, i32 0, i64 20222, ptr getelementptr inbounds ({ [5 x ptr] }, ptr @_ZTV2D2, i32 0, i32 0, i32 3)), ptr null] }, align 87 8struct A {9 virtual const char* abc(void) const;10};11 12const char* A::abc(void) const {return "A"; };13 14struct B : virtual A {15 virtual void VF();16};17 18void B::VF() {}19 20void FUNC(B* p) {21// CHECK: [[T1:%.*]] = load ptr, ptr getelementptr inbounds (ptr, ptr @_ZTV1A, i64 2)22// CHECK-NEXT: [[BT1:%.*]] = call i64 @llvm.ptrauth.blend(i64 ptrtoint (ptr getelementptr inbounds (ptr, ptr @_ZTV1A, i64 2) to i64), i64 12401)23// CHECK-NEXT: [[T2:%.*]] = call noundef ptr [[T1]](ptr noundef {{.*}}) [ "ptrauth"(i32 0, i64 [[BT1]]) ]24 const char* c = p->A::abc();25}26 27 28// Test229struct Base { virtual char* abc(void) const; };30 31char* Base::abc() const { return 0; }32 33struct Derived : public Base {34};35 36void FUNC1(Derived* p) {37// CHECK: [[U1:%.*]] = load ptr, ptr getelementptr inbounds (ptr, ptr @_ZTV4Base, i64 2)38// CHECK-NEXT: [[BU1:%.*]] = call i64 @llvm.ptrauth.blend(i64 ptrtoint (ptr getelementptr inbounds (ptr, ptr @_ZTV4Base, i64 2) to i64), i64 64320)39// CHECK-NEXT: [[U2:%.*]] = call noundef ptr [[U1]](ptr noundef {{.*}}) [ "ptrauth"(i32 0, i64 [[BU1]]) ]40 char* c = p->Base::abc();41}42 43 44// Test345struct Base2 { };46 47struct Derived2 : virtual Base2 {48 virtual char* efg(void) const;49};50 51char* Derived2::efg(void) const { return 0; }52 53void FUNC2(Derived2* p) {54// CHECK: [[V1:%.*]] = load ptr, ptr getelementptr inbounds (ptr, ptr @_ZTV8Derived2, i64 3)55// CHECK-NEXT: [[BV1:%.*]] = call i64 @llvm.ptrauth.blend(i64 ptrtoint (ptr getelementptr inbounds (ptr, ptr @_ZTV8Derived2, i64 3) to i64), i64 36603)56// CHECK-NEXT: [[V2:%.*]] = call noundef ptr [[V1]](ptr noundef {{.*}}) [ "ptrauth"(i32 0, i64 [[BV1]]) ]57 char* c = p->Derived2::efg();58}59 60// Test461struct Base3 { };62 63struct D1 : virtual Base3 {64};65 66struct D2 : virtual Base3 {67 virtual char *abc(void) const;68};69 70struct Sub : D1, D2 {71};72 73char* D2::abc(void) const { return 0; }74 75void FUNC3(Sub* p) {76// CHECK: [[W1:%.*]] = load ptr, ptr getelementptr inbounds (ptr, ptr @_ZTV2D2, i64 3)77// CHECK-NEXT: [[BW1:%.*]] = call i64 @llvm.ptrauth.blend(i64 ptrtoint (ptr getelementptr inbounds (ptr, ptr @_ZTV2D2, i64 3) to i64), i64 20222)78// CHECK-NEXT: [[W2:%.*]] = call noundef ptr [[W1]](ptr noundef {{.*}}) [ "ptrauth"(i32 0, i64 [[BW1]]) ]79 char* c = p->D2::abc();80}81 82 83// Test484struct Base4 { virtual void abc(); };85 86void Base4::abc() {}87 88struct Derived4 : public Base4 {89 void abc() override;90};91 92void Derived4::abc() {}93 94void FUNC4(Derived4* p) {95// CHECK: %[[VTABLE:[a-z]+]] = load ptr, ptr %{{.*}}96// CHECK: %[[T0:[0-9]+]] = ptrtoint ptr %[[VTABLE]] to i6497// CHECK: %[[T3:[0-9]+]] = call i64 @llvm.ptrauth.auth(i64 %[[T0]], i32 2, i64 0)98// CHECK: %[[T4:[0-9]+]] = inttoptr i64 %[[T3]] to ptr99// CHECK: %[[VFN:[a-z]+]] = getelementptr inbounds ptr, ptr %[[T4]], i64 0100// CHECK: %[[T5:[0-9]+]] = load ptr, ptr %[[VFN]]101// CHECK: %[[T6:[0-9]+]] = ptrtoint ptr %[[VFN]] to i64102// CHECK: %[[T7:[0-9]+]] = call i64 @llvm.ptrauth.blend(i64 %[[T6]], i64 426)103// CHECK: call void %[[T5]](ptr noundef nonnull align {{[0-9]+}} dereferenceable(8) %{{.*}}) [ "ptrauth"(i32 0, i64 %[[T7]]) ]104 p->abc();105}106