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
CreateA()16 void CreateA() {
17 new A;
18 }
19
CallFoo(A * a,int (A::* fp)()const)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/C++ TBAA"}
36