| Chandler Carruth | 93786da | 2016-12-23 00:23:01 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -O0 -fsanitize=memory -fsanitize-memory-use-after-dtor -disable-llvm-passes -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-passes -std=c++11 -triple=x86_64-pc-linux -emit-llvm -o - %s | FileCheck %s |
| Naomi Musgrave | 703835c | 2015-09-16 00:38:22 +0000 | [diff] [blame] | 3 | |
| 4 | class A { |
| 5 | public: |
| 6 | int x; |
| 7 | A() {} |
| 8 | virtual ~A() {} |
| 9 | }; |
| 10 | A a; |
| 11 | |
| 12 | class B : virtual public A { |
| 13 | public: |
| 14 | int y; |
| 15 | B() {} |
| 16 | ~B() {} |
| 17 | }; |
| 18 | B b; |
| 19 | |
| 20 | // CHECK-LABEL: define {{.*}}AD1Ev |
| 21 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 22 | // CHECK: call void {{.*}}AD2Ev |
| 23 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 24 | // CHECK: ret void |
| 25 | |
| 26 | // After invoking base dtor and dtor for virtual base, poison vtable ptr. |
| 27 | // CHECK-LABEL: define {{.*}}BD1Ev |
| 28 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 29 | // CHECK: call void {{.*}}BD2Ev |
| 30 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 31 | // CHECK: call void {{.*}}AD2Ev |
| 32 | // CHECK: call void @__sanitizer_dtor_callback{{.*}}i64 8 |
| 33 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 34 | // CHECK: ret void |
| 35 | |
| 36 | // Since no virtual bases, poison vtable ptr here. |
| 37 | // CHECK-LABEL: define {{.*}}AD2Ev |
| 38 | // CHECK: call void @__sanitizer_dtor_callback |
| 39 | // CHECK: call void @__sanitizer_dtor_callback{{.*}}i64 8 |
| 40 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 41 | // CHECK: ret void |
| 42 | |
| 43 | // Poison members |
| 44 | // CHECK-LABEL: define {{.*}}BD2Ev |
| 45 | // CHECK: call void @__sanitizer_dtor_callback |
| 46 | // CHECK-NOT: call void @__sanitizer_dtor_callback |
| 47 | // CHECK: ret void |