1// RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-vcall -emit-llvm -o - %s | FileCheck %s 2 3struct A { 4 A(); 5 virtual void f(); 6}; 7 8struct B : virtual A { 9 B(); 10}; 11 12struct C : virtual A { 13 C(); 14}; 15 16namespace { 17 18struct D : B, C { 19 D(); 20 virtual void f(); 21}; 22 23} 24 25A::A() {} 26B::B() {} 27C::C() {} 28D::D() {} 29 30void A::f() { 31} 32 33void D::f() { 34} 35 36// CHECK: define void @_Z2afP1A 37void af(A *a) { 38 // CHECK: [[P:%[^ ]*]] = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata !"1A") 39 // CHECK-NEXT: br i1 [[P]], label %[[CONTBB:[^ ]*]], label %[[TRAPBB:[^ ]*]] 40 41 // CHECK: [[TRAPBB]] 42 // CHECK-NEXT: call void @llvm.trap() 43 // CHECK-NEXT: unreachable 44 45 // CHECK: [[CONTBB]] 46 // CHECK: call void % 47 a->f(); 48} 49 50// CHECK: define internal void @_Z2dfPN12_GLOBAL__N_11DE 51void df(D *d) { 52 // CHECK: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata !"[{{.*}}cfi-vcall.cpp]N12_GLOBAL__N_11DE") 53 d->f(); 54} 55 56D d; 57 58void foo() { 59 df(&d); 60} 61 62// CHECK-DAG: !{!"1A", [3 x i8*]* @_ZTV1A, i64 16} 63// CHECK-DAG: !{!"1A", [5 x i8*]* @_ZTCN12_GLOBAL__N_11DE0_1B, i64 32} 64// CHECK-DAG: !{!"1B", [5 x i8*]* @_ZTCN12_GLOBAL__N_11DE0_1B, i64 32} 65// CHECK-DAG: !{!"1A", [9 x i8*]* @_ZTCN12_GLOBAL__N_11DE8_1C, i64 64} 66// CHECK-DAG: !{!"1C", [9 x i8*]* @_ZTCN12_GLOBAL__N_11DE8_1C, i64 32} 67// CHECK-DAG: !{!"1A", [10 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32} 68// CHECK-DAG: !{!"1B", [10 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32} 69// CHECK-DAG: !{!"1C", [10 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 72} 70// CHECK-DAG: !{!"[{{.*}}cfi-vcall.cpp]N12_GLOBAL__N_11DE", [10 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32} 71// CHECK-DAG: !{!"1A", [5 x i8*]* @_ZTV1B, i64 32} 72// CHECK-DAG: !{!"1B", [5 x i8*]* @_ZTV1B, i64 32} 73// CHECK-DAG: !{!"1A", [5 x i8*]* @_ZTV1C, i64 32} 74// CHECK-DAG: !{!"1C", [5 x i8*]* @_ZTV1C, i64 32} 75