| // RUN: %clang_cc1 -fsanitize=memory -fsanitize-memory-use-after-dtor -disable-llvm-passes -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s |
| // RUN: %clang_cc1 -O1 -fsanitize=memory -fsanitize-memory-use-after-dtor -disable-llvm-passes -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s |
| |
| // Base dtor poisons members |
| // Complete dtor poisons vtable ptr after destroying members and |
| // virtual bases |
| |
| class Base { |
| public: |
| int x; |
| Base() { |
| x = 5; |
| } |
| virtual ~Base() { |
| x += 1; |
| } |
| }; |
| |
| class Derived : public Base { |
| public: |
| int y; |
| Derived() { |
| y = 10; |
| } |
| ~Derived() { |
| y += 1; |
| } |
| }; |
| |
| Derived d; |
| |
| // Invoke base destructor. No vtable pointer to poison. |
| // CHECK-LABEL: define {{.*}}DerivedD1Ev |
| // CHECK-NOT: call void @__sanitizer_dtor_callback |
| // CHECK: call void {{.*}}DerivedD2Ev |
| // CHECK-NOT: call void @__sanitizer_dtor_callback |
| // CHECK: ret void |
| |
| // CHECK-LABEL: define {{.*}}DerivedD0Ev |
| // CHECK-NOT: call void @__sanitizer_dtor_callback |
| // CHECK: call void {{.*}}DerivedD1Ev |
| // CHECK-NOT: call void @__sanitizer_dtor_callback |
| // CHECK: ret void |
| |
| // Invokes base destructor, and poison vtable pointer. |
| // CHECK-LABEL: define {{.*}}BaseD1Ev |
| // CHECK-NOT: call void @__sanitizer_dtor_callback |
| // CHECK: call void {{.*}}BaseD2Ev |
| // CHECK-NOT: call void @__sanitizer_dtor_callback |
| // CHECK: ret void |
| |
| // CHECK-LABEL: define {{.*}}BaseD0Ev |
| // CHECK-NOT: call void @__sanitizer_dtor_callback |
| // CHECK: call void {{.*}}BaseD1Ev |
| // CHECK-NOT: call void @__sanitizer_dtor_callback |
| // CHECK: ret void |
| |
| // Poison members and vtable ptr. |
| // CHECK-LABEL: define {{.*}}BaseD2Ev |
| // CHECK: call void @__sanitizer_dtor_callback |
| // CHECK: call void @__sanitizer_dtor_callback{{.*}}i64 8 |
| // CHECK-NOT: call void @__sanitizer_dtor_callback |
| // CHECK: ret void |
| |
| // Poison members and destroy non-virtual base. |
| // CHECK-LABEL: define {{.*}}DerivedD2Ev |
| // CHECK: call void @__sanitizer_dtor_callback |
| // CHECK-NOT: call void @__sanitizer_dtor_callback |
| // CHECK: call void {{.*}}BaseD2Ev |
| // CHECK: call void @__sanitizer_dtor_callback{{.*}}i64 8 |
| // CHECK: ret void |
