diff options
| author | Naomi Musgrave <nmusgrave@google.com> | 2015-08-13 18:35:11 +0000 |
|---|---|---|
| committer | Naomi Musgrave <nmusgrave@google.com> | 2015-08-13 18:35:11 +0000 |
| commit | c17d2d250a685d42dd4531a596d9f78fc4c436fd (patch) | |
| tree | fd7eca45710b01c5907cda8448b0e17a22f3e521 /test/CodeGenCXX/sanitize-dtor-derived-class.cpp | |
| parent | 484b48d1d1e83959230f8ef088980a129c57edeb (diff) | |
Fix previous commit: poison only class members, simpler tests
Summary: Poisoning applied to only class members, and before dtors for base class invoked
Implement poisoning of only class members in dtor, as opposed to also
poisoning fields inherited from base classes. Members are poisoned
only once, by the last dtor for a class. Skip poisoning if class has
no fields.
Verify emitted code for derived class with virtual destructor sanitizes
its members only once.
Removed patch file containing extraneous changes.
Reviewers: eugenis, kcc
Differential Revision: http://reviews.llvm.org/D11951
Simplified test cases for use-after-dtor
Summary: Simplified test cases to focus on one feature at time.
Tests updated to align with new emission order for sanitizing
callback.
Reviewers: eugenis, kcc
Differential Revision: http://reviews.llvm.org/D12003
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@244933 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGenCXX/sanitize-dtor-derived-class.cpp')
| -rw-r--r-- | test/CodeGenCXX/sanitize-dtor-derived-class.cpp | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/test/CodeGenCXX/sanitize-dtor-derived-class.cpp b/test/CodeGenCXX/sanitize-dtor-derived-class.cpp new file mode 100644 index 0000000000..723a504dd7 --- /dev/null +++ b/test/CodeGenCXX/sanitize-dtor-derived-class.cpp @@ -0,0 +1,65 @@ +// 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 +// 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 + +// Only the last dtor of a class invokes the sanitizing callback +// Sanitizing callback emited prior to base class dtor invocations + +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; + +// 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 + +// 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 + +// CHECK-LABEL: define {{.*}}BaseD2Ev +// CHECK: call void @__sanitizer_dtor_callback +// CHECK-NOT: call void @__sanitizer_dtor_callback +// CHECK: ret void + +// CHECK-LABEL: define {{.*}}DerivedD2Ev +// CHECK: call void @__sanitizer_dtor_callback +// CHECK-NOT: call void @__sanitizer_dtor_callback +// CHECK: call void {{.*}}BaseD2Ev +// CHECK-NOT: call void @__sanitizer_dtor_callback +// CHECK: ret void |