| // RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-vcall -emit-llvm -o - %s | FileCheck %s |
| |
| struct A { |
| A(); |
| virtual void f(); |
| }; |
| |
| struct B : virtual A { |
| B(); |
| }; |
| |
| struct C : virtual A { |
| C(); |
| }; |
| |
| namespace { |
| |
| struct D : B, C { |
| D(); |
| virtual void f(); |
| }; |
| |
| } |
| |
| A::A() {} |
| B::B() {} |
| C::C() {} |
| D::D() {} |
| |
| void A::f() { |
| } |
| |
| void D::f() { |
| } |
| |
| // CHECK: define void @_Z2afP1A |
| void af(A *a) { |
| // CHECK: [[P:%[^ ]*]] = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata !"1A") |
| // CHECK-NEXT: br i1 [[P]], label %[[CONTBB:[^ ]*]], label %[[TRAPBB:[^ ]*]] |
| |
| // CHECK: [[TRAPBB]] |
| // CHECK-NEXT: call void @llvm.trap() |
| // CHECK-NEXT: unreachable |
| |
| // CHECK: [[CONTBB]] |
| // CHECK: call void % |
| a->f(); |
| } |
| |
| // CHECK: define internal void @_Z2dfPN12_GLOBAL__N_11DE |
| void df(D *d) { |
| // CHECK: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata !"[{{.*}}cfi-vcall.cpp]N12_GLOBAL__N_11DE") |
| d->f(); |
| } |
| |
| D d; |
| |
| void foo() { |
| df(&d); |
| } |
| |
| // CHECK-DAG: !{!"1A", [3 x i8*]* @_ZTV1A, i64 16} |
| // CHECK-DAG: !{!"1A", [5 x i8*]* @_ZTCN12_GLOBAL__N_11DE0_1B, i64 32} |
| // CHECK-DAG: !{!"1B", [5 x i8*]* @_ZTCN12_GLOBAL__N_11DE0_1B, i64 32} |
| // CHECK-DAG: !{!"1A", [9 x i8*]* @_ZTCN12_GLOBAL__N_11DE8_1C, i64 64} |
| // CHECK-DAG: !{!"1C", [9 x i8*]* @_ZTCN12_GLOBAL__N_11DE8_1C, i64 32} |
| // CHECK-DAG: !{!"1A", [10 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32} |
| // CHECK-DAG: !{!"1B", [10 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32} |
| // CHECK-DAG: !{!"1C", [10 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 72} |
| // CHECK-DAG: !{!"[{{.*}}cfi-vcall.cpp]N12_GLOBAL__N_11DE", [10 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32} |
| // CHECK-DAG: !{!"1A", [5 x i8*]* @_ZTV1B, i64 32} |
| // CHECK-DAG: !{!"1B", [5 x i8*]* @_ZTV1B, i64 32} |
| // CHECK-DAG: !{!"1A", [5 x i8*]* @_ZTV1C, i64 32} |
| // CHECK-DAG: !{!"1C", [5 x i8*]* @_ZTV1C, i64 32} |