| Naomi Musgrave | e50cb9b | 2015-08-13 18:35:11 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -fsanitize=memory -fsanitize-memory-use-after-dtor -disable-llvm-optzns -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s |
| 2 | // RUN: %clang_cc1 -O1 -fsanitize=memory -fsanitize-memory-use-after-dtor -disable-llvm-optzns -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s |
| 3 | |
| Naomi Musgrave | 703835c | 2015-09-16 00:38:22 +0000 | [diff] [blame] | 4 | // Base dtor poisons members |
| 5 | // Complete dtor poisons vtable ptr after destroying members and |
| 6 | // virtual bases |
| Naomi Musgrave | e50cb9b | 2015-08-13 18:35:11 +0000 | [diff] [blame] | 7 | |
| 8 | class Base { |
| 9 | public: |
| 10 | int x; |
| 11 | Base() { |
| 12 | x = 5; |
| 13 | } |
| 14 | virtual ~Base() { |
| 15 | x += 1; |
| 16 | } |
| 17 | }; |
| 18 | |
| 19 | class Derived : public Base { |
| 20 | public: |
| 21 | int y; |
| 22 | Derived() { |
| 23 | y = 10; |
| 24 | } |
| 25 | ~Derived() { |
| 26 | y += 1; |
| 27 | } |
| 28 | }; |
| 29 | |
| 30 | Derived d; |
| 31 | |
| Naomi Musgrave | 703835c | 2015-09-16 00:38:22 +0000 | [diff] [blame] | 32 | // Invoke base destructor. No vtable pointer to poison. |
| Naomi Musgrave | e50cb9b | 2015-08-13 18:35:11 +0000 | [diff] [blame] | 33 | // CHECK-LABEL: define {{.*}}DerivedD1Ev |
| 34 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 35 | // CHECK: call void {{.*}}DerivedD2Ev |
| 36 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 37 | // CHECK: ret void |
| 38 | |
| 39 | // CHECK-LABEL: define {{.*}}DerivedD0Ev |
| 40 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 41 | // CHECK: call void {{.*}}DerivedD1Ev |
| 42 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 43 | // CHECK: ret void |
| 44 | |
| Naomi Musgrave | 703835c | 2015-09-16 00:38:22 +0000 | [diff] [blame] | 45 | // Invokes base destructor, and poison vtable pointer. |
| Naomi Musgrave | e50cb9b | 2015-08-13 18:35:11 +0000 | [diff] [blame] | 46 | // CHECK-LABEL: define {{.*}}BaseD1Ev |
| 47 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 48 | // CHECK: call void {{.*}}BaseD2Ev |
| 49 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 50 | // CHECK: ret void |
| 51 | |
| 52 | // CHECK-LABEL: define {{.*}}BaseD0Ev |
| 53 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 54 | // CHECK: call void {{.*}}BaseD1Ev |
| 55 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 56 | // CHECK: ret void |
| 57 | |
| Naomi Musgrave | 703835c | 2015-09-16 00:38:22 +0000 | [diff] [blame] | 58 | // Poison members and vtable ptr. |
| Naomi Musgrave | e50cb9b | 2015-08-13 18:35:11 +0000 | [diff] [blame] | 59 | // CHECK-LABEL: define {{.*}}BaseD2Ev |
| 60 | // CHECK: call void @__sanitizer_dtor_callback |
| Naomi Musgrave | 703835c | 2015-09-16 00:38:22 +0000 | [diff] [blame] | 61 | // CHECK: call void @__sanitizer_dtor_callback{{.*}}i64 8 |
| Naomi Musgrave | e50cb9b | 2015-08-13 18:35:11 +0000 | [diff] [blame] | 62 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 63 | // CHECK: ret void |
| 64 | |
| Naomi Musgrave | 703835c | 2015-09-16 00:38:22 +0000 | [diff] [blame] | 65 | // Poison members and destroy non-virtual base. |
| Naomi Musgrave | e50cb9b | 2015-08-13 18:35:11 +0000 | [diff] [blame] | 66 | // CHECK-LABEL: define {{.*}}DerivedD2Ev |
| 67 | // CHECK: call void @__sanitizer_dtor_callback |
| 68 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 69 | // CHECK: call void {{.*}}BaseD2Ev |
| Naomi Musgrave | 703835c | 2015-09-16 00:38:22 +0000 | [diff] [blame] | 70 | // CHECK: call void @__sanitizer_dtor_callback{{.*}}i64 8 |
| Naomi Musgrave | e50cb9b | 2015-08-13 18:35:11 +0000 | [diff] [blame] | 71 | // CHECK: ret void |