| // Check typeid() + type_info |
| |
| // RUN: %clang_cc1 %s -triple=aarch64-unknown-fuchsia -O3 -S -o - -emit-llvm -fcxx-exceptions -fexceptions | FileCheck %s |
| |
| // CHECK: %class.A = type { i32 (...)** } |
| // CHECK: %class.B = type { %class.A } |
| // CHECK: %"class.std::type_info" = type { i32 (...)**, i8* } |
| |
| // CHECK: $_ZTI1A.rtti_proxy = comdat any |
| // CHECK: $_ZTI1B.rtti_proxy = comdat any |
| |
| // CHECK: @_ZTVN10__cxxabiv117__class_type_infoE = external global i8* |
| // CHECK: @_ZTS1A ={{.*}} constant [3 x i8] c"1A\00", align 1 |
| // CHECK: @_ZTI1A ={{.*}} constant { i8*, i8* } { i8* getelementptr inbounds (i8, i8* bitcast (i8** @_ZTVN10__cxxabiv117__class_type_infoE to i8*), i32 8), i8* getelementptr inbounds ([3 x i8], [3 x i8]* @_ZTS1A, i32 0, i32 0) }, align 8 |
| // CHECK: @_ZTVN10__cxxabiv120__si_class_type_infoE = external global i8* |
| // CHECK: @_ZTS1B ={{.*}} constant [3 x i8] c"1B\00", align 1 |
| // CHECK: @_ZTI1B ={{.*}} constant { i8*, i8*, i8* } { i8* getelementptr inbounds (i8, i8* bitcast (i8** @_ZTVN10__cxxabiv120__si_class_type_infoE to i8*), i32 8), i8* getelementptr inbounds ([3 x i8], [3 x i8]* @_ZTS1B, i32 0, i32 0), i8* bitcast ({ i8*, i8* }* @_ZTI1A to i8*) }, align 8 |
| // CHECK: @_ZTI1A.rtti_proxy = hidden unnamed_addr constant { i8*, i8* }* @_ZTI1A, comdat |
| // CHECK: @_ZTI1B.rtti_proxy = hidden unnamed_addr constant { i8*, i8*, i8* }* @_ZTI1B, comdat |
| |
| // CHECK: define {{.*}}%"class.std::type_info"* @_Z11getTypeInfov() local_unnamed_addr |
| // CHECK-NEXT: entry: |
| // CHECK-NEXT: ret %"class.std::type_info"* bitcast ({ i8*, i8* }* @_ZTI1A to %"class.std::type_info"*) |
| // CHECK-NEXT: } |
| |
| // CHECK: define{{.*}} i8* @_Z7getNamev() local_unnamed_addr |
| // CHECK-NEXT: entry: |
| // CHECK-NEXT: ret i8* getelementptr inbounds ([3 x i8], [3 x i8]* @_ZTS1A, i64 0, i64 0) |
| // CHECK-NEXT: } |
| |
| // CHECK: define{{.*}} i1 @_Z5equalP1A(%class.A* readonly %a) local_unnamed_addr |
| // CHECK-NEXT: entry: |
| // CHECK-NEXT: [[isnull:%[0-9]+]] = icmp eq %class.A* %a, null |
| // CHECK-NEXT: br i1 [[isnull]], label %[[bad_typeid:[a-z0-9._]+]], label %[[end:[a-z0-9.+]+]] |
| // CHECK: [[bad_typeid]]: |
| // CHECK-NEXT: tail call void @__cxa_bad_typeid() |
| // CHECK-NEXT: unreachable |
| // CHECK: [[end]]: |
| // CHECK-NEXT: [[type_info_ptr3:%[0-9]+]] = bitcast %class.A* %a to i8** |
| // CHECK-NEXT: [[vtable:%[a-z0-9]+]] = load i8*, i8** [[type_info_ptr3]] |
| // CHECK-NEXT: [[type_info_ptr:%[0-9]+]] = tail call i8* @llvm.load.relative.i32(i8* [[vtable]], i32 -4) |
| // CHECK-NEXT: [[type_info_ptr2:%[0-9]+]] = bitcast i8* [[type_info_ptr]] to %"class.std::type_info"** |
| // CHECK-NEXT: [[type_info_ptr:%[0-9]+]] = load %"class.std::type_info"*, %"class.std::type_info"** [[type_info_ptr2]], align 8 |
| // CHECK-NEXT: [[name_ptr:%[a-z0-9._]+]] = getelementptr inbounds %"class.std::type_info", %"class.std::type_info"* [[type_info_ptr]], i64 0, i32 1 |
| // CHECK-NEXT: [[name:%[0-9]+]] = load i8*, i8** [[name_ptr]], align 8 |
| // CHECK-NEXT: [[eq:%[a-z0-9.]+]] = icmp eq i8* [[name]], getelementptr inbounds ([3 x i8], [3 x i8]* @_ZTS1B, i64 0, i64 0) |
| // CHECK-NEXT: ret i1 [[eq]] |
| // CHECK-NEXT: } |
| |
| #include "../typeinfo" |
| |
| class A { |
| public: |
| virtual void foo(); |
| }; |
| |
| class B : public A { |
| public: |
| void foo() override; |
| }; |
| |
| void A::foo() {} |
| void B::foo() {} |
| |
| const auto &getTypeInfo() { |
| return typeid(A); |
| } |
| |
| const char *getName() { |
| return typeid(A).name(); |
| } |
| |
| bool equal(A *a) { |
| return typeid(B) == typeid(*a); |
| } |
