1 // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - -fsanitize=thread %s | FileCheck %s 2 // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - -O1 %s | FileCheck %s 3 // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - -O1 -relaxed-aliasing -fsanitize=thread %s | FileCheck %s 4 // 5 // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - %s | FileCheck %s --check-prefix=NOTBAA 6 // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - -O2 -relaxed-aliasing %s | FileCheck %s --check-prefix=NOTBAA 7 // 8 // Check that we generate TBAA for vtable pointer loads and stores. 9 // When -fsanitize=thread is used TBAA should be generated at all opt levels 10 // even if -relaxed-aliasing is present. 11 struct A { 12 virtual int foo() const ; 13 virtual ~A(); 14 }; 15 16 void CreateA() { 17 new A; 18 } 19 20 void CallFoo(A *a, int (A::*fp)() const) { 21 a->foo(); 22 (a->*fp)(); 23 } 24 25 // CHECK-LABEL: @_Z7CallFoo 26 // CHECK: %{{.*}} = load {{.*}} !tbaa ![[NUM:[0-9]+]] 27 // CHECK: br i1 28 // CHECK: load {{.*}}, !tbaa ![[NUM]] 29 // 30 // CHECK-LABEL: @_ZN1AC2Ev 31 // CHECK: store {{.*}} !tbaa ![[NUM]] 32 // 33 // CHECK: [[NUM]] = !{[[TYPE:!.*]], [[TYPE]], i64 0} 34 // CHECK: [[TYPE]] = !{!"vtable pointer", !{{.*}} 35 // NOTBAA-NOT: = !{!"Simple C++ TBAA"} 36
