| // RUN: %clang_cc1 -emit-llvm -o - -O0 -fsanitize=thread %s | FileCheck %s |
| // RUN: %clang_cc1 -emit-llvm -o - -O1 %s | FileCheck %s |
| // RUN: %clang_cc1 -emit-llvm -o - -O1 -relaxed-aliasing -fsanitize=thread %s | FileCheck %s |
| // |
| // RUN: %clang_cc1 -emit-llvm -o - -O0 %s | FileCheck %s --check-prefix=NOTBAA |
| // RUN: %clang_cc1 -emit-llvm -o - -O2 -relaxed-aliasing %s | FileCheck %s --check-prefix=NOTBAA |
| // |
| // Check that we generate TBAA for vtable pointer loads and stores. |
| // When -fthread-sanitizer is used TBAA should be generated at all opt levels |
| // even if -relaxed-aliasing is present. |
| struct A { |
| virtual int foo() const ; |
| virtual ~A(); |
| }; |
| |
| void CreateA() { |
| new A; |
| } |
| |
| void CallFoo(A *a) { |
| a->foo(); |
| } |
| |
| // CHECK: %{{.*}} = load {{.*}} !tbaa ![[NUM:[0-9]+]] |
| // CHECK: store {{.*}} !tbaa ![[NUM]] |
| // CHECK: [[NUM]] = metadata !{metadata !"vtable pointer", metadata !{{.*}}} |
| // NOTBAA-NOT: = metadata !{metadata !"Simple C/C++ TBAA"} |
