| Peter Collingbourne | 1a7488a | 2015-04-02 00:23:30 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-vcall -emit-llvm -o - %s | FileCheck %s |
| Peter Collingbourne | a4ccff3 | 2015-02-20 20:30:56 +0000 | [diff] [blame] | 2 | |
| 3 | struct A { |
| 4 | A(); |
| 5 | virtual void f(); |
| 6 | }; |
| 7 | |
| 8 | struct B : virtual A { |
| 9 | B(); |
| 10 | }; |
| 11 | |
| 12 | struct C : virtual A { |
| 13 | C(); |
| 14 | }; |
| 15 | |
| 16 | namespace { |
| 17 | |
| 18 | struct D : B, C { |
| 19 | D(); |
| 20 | virtual void f(); |
| 21 | }; |
| 22 | |
| 23 | } |
| 24 | |
| 25 | A::A() {} |
| 26 | B::B() {} |
| 27 | C::C() {} |
| 28 | D::D() {} |
| 29 | |
| 30 | void A::f() { |
| 31 | } |
| 32 | |
| 33 | void D::f() { |
| 34 | } |
| 35 | |
| 36 | // CHECK: define void @_Z2afP1A |
| 37 | void 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 | |
| Peter Collingbourne | 915df99 | 2015-05-15 18:33:32 +0000 | [diff] [blame^] | 50 | // CHECK: define internal void @_Z3df1PN12_GLOBAL__N_11DE |
| 51 | void df1(D *d) { |
| Peter Collingbourne | 1a7488a | 2015-04-02 00:23:30 +0000 | [diff] [blame] | 52 | // CHECK: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata !"[{{.*}}cfi-vcall.cpp]N12_GLOBAL__N_11DE") |
| Peter Collingbourne | a4ccff3 | 2015-02-20 20:30:56 +0000 | [diff] [blame] | 53 | d->f(); |
| 54 | } |
| 55 | |
| Peter Collingbourne | 915df99 | 2015-05-15 18:33:32 +0000 | [diff] [blame^] | 56 | // CHECK: define internal void @_Z3df2PN12_GLOBAL__N_11DE |
| 57 | __attribute__((no_sanitize("cfi"))) |
| 58 | void df2(D *d) { |
| 59 | // CHECK-NOT: call i1 @llvm.bitset.test |
| 60 | d->f(); |
| 61 | } |
| 62 | |
| 63 | // CHECK: define internal void @_Z3df3PN12_GLOBAL__N_11DE |
| 64 | __attribute__((no_sanitize("address"))) __attribute__((no_sanitize("cfi-vcall"))) |
| 65 | void df3(D *d) { |
| 66 | // CHECK-NOT: call i1 @llvm.bitset.test |
| 67 | d->f(); |
| 68 | } |
| 69 | |
| Peter Collingbourne | a4ccff3 | 2015-02-20 20:30:56 +0000 | [diff] [blame] | 70 | D d; |
| 71 | |
| 72 | void foo() { |
| Peter Collingbourne | 915df99 | 2015-05-15 18:33:32 +0000 | [diff] [blame^] | 73 | df1(&d); |
| 74 | df2(&d); |
| 75 | df3(&d); |
| Peter Collingbourne | a4ccff3 | 2015-02-20 20:30:56 +0000 | [diff] [blame] | 76 | } |
| 77 | |
| 78 | // CHECK-DAG: !{!"1A", [3 x i8*]* @_ZTV1A, i64 16} |
| 79 | // CHECK-DAG: !{!"1A", [5 x i8*]* @_ZTCN12_GLOBAL__N_11DE0_1B, i64 32} |
| 80 | // CHECK-DAG: !{!"1B", [5 x i8*]* @_ZTCN12_GLOBAL__N_11DE0_1B, i64 32} |
| 81 | // CHECK-DAG: !{!"1A", [9 x i8*]* @_ZTCN12_GLOBAL__N_11DE8_1C, i64 64} |
| 82 | // CHECK-DAG: !{!"1C", [9 x i8*]* @_ZTCN12_GLOBAL__N_11DE8_1C, i64 32} |
| 83 | // CHECK-DAG: !{!"1A", [10 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32} |
| 84 | // CHECK-DAG: !{!"1B", [10 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32} |
| 85 | // CHECK-DAG: !{!"1C", [10 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 72} |
| Peter Collingbourne | 1a7488a | 2015-04-02 00:23:30 +0000 | [diff] [blame] | 86 | // CHECK-DAG: !{!"[{{.*}}cfi-vcall.cpp]N12_GLOBAL__N_11DE", [10 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32} |
| Peter Collingbourne | a4ccff3 | 2015-02-20 20:30:56 +0000 | [diff] [blame] | 87 | // CHECK-DAG: !{!"1A", [5 x i8*]* @_ZTV1B, i64 32} |
| 88 | // CHECK-DAG: !{!"1B", [5 x i8*]* @_ZTV1B, i64 32} |
| 89 | // CHECK-DAG: !{!"1A", [5 x i8*]* @_ZTV1C, i64 32} |
| 90 | // CHECK-DAG: !{!"1C", [5 x i8*]* @_ZTV1C, i64 32} |