| // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - -fsanitize=thread %s | FileCheck %s |
| // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - -O1 %s | FileCheck %s |
| // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - -O1 -relaxed-aliasing -fsanitize=thread %s | FileCheck %s |
| // |
| // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - %s | FileCheck %s --check-prefix=NOTBAA |
| // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - -O2 -relaxed-aliasing %s | FileCheck %s --check-prefix=NOTBAA |
| // |
| // Check that we generate TBAA for vtable pointer loads and stores. |
| // When -fsanitize=thread 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, int (A::*fp)() const) { |
| a->foo(); |
| (a->*fp)(); |
| } |
| |
| // CHECK-LABEL: @_Z7CallFoo |
| // CHECK: %{{.*}} = load i32 (%struct.A*)**, {{.*}} !tbaa ![[NUM:[0-9]+]] |
| // CHECK: br i1 |
| // CHECK: load i8*, {{.*}}, !tbaa ![[NUM]] |
| // |
| // CHECK-LABEL: @_ZN1AC2Ev |
| // CHECK: store i32 (...)** {{.*}}, !tbaa ![[NUM]] |
| // |
| // CHECK: [[NUM]] = !{[[TYPE:!.*]], [[TYPE]], i64 0} |
| // CHECK: [[TYPE]] = !{!"vtable pointer", !{{.*}} |
| // NOTBAA-NOT: = !{!"Simple C++ TBAA"} |
