1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
// 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 {{.*}} !tbaa ![[NUM:[0-9]+]]
// CHECK: br i1
// CHECK: load {{.*}}, !tbaa ![[NUM]]
//
// CHECK-LABEL: @_ZN1AC2Ev
// CHECK: store {{.*}} !tbaa ![[NUM]]
//
// CHECK: [[NUM]] = !{[[TYPE:!.*]], [[TYPE]], i64 0}
// CHECK: [[TYPE]] = !{!"vtable pointer", !{{.*}}
// NOTBAA-NOT: = !{!"Simple C/C++ TBAA"}
|
