1 | // RUN: %clang_cc1 -flto -triple x86_64-unknown-linux -fsanitize=cfi-vcall -fsanitize-cfi-cross-dso -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=ITANIUM %s |
2 | // RUN: %clang_cc1 -flto -triple x86_64-pc-windows-msvc -fsanitize=cfi-vcall -fsanitize-cfi-cross-dso -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=MS %s |
3 | |
4 | struct A { |
5 | A(); |
6 | virtual void f(); |
7 | }; |
8 | |
9 | A::A() {} |
10 | void A::f() {} |
11 | |
12 | void caller(A* a) { |
13 | a->f(); |
14 | } |
15 | |
16 | namespace { |
17 | struct B { |
18 | virtual void f(); |
19 | }; |
20 | |
21 | void B::f() {} |
22 | } // namespace |
23 | |
24 | void g() { |
25 | B b; |
26 | b.f(); |
27 | } |
28 | |
29 | // MS: @[[B_VTABLE:.*]] = private unnamed_addr constant { [2 x i8*] } {{.*}}@"??_R4B@?A0x{{[^@]*}}@@6B@"{{.*}}@"?f@B@?A0x{{[^@]*}}@@UEAAXXZ" |
30 | |
31 | // CHECK: %[[VT:.*]] = load void (%struct.A*)**, void (%struct.A*)*** |
32 | // CHECK: %[[VT2:.*]] = bitcast {{.*}}%[[VT]] to i8*, !nosanitize |
33 | // ITANIUM: %[[TEST:.*]] = call i1 @llvm.type.test(i8* %[[VT2]], metadata !"_ZTS1A"), !nosanitize |
34 | // MS: %[[TEST:.*]] = call i1 @llvm.type.test(i8* %[[VT2]], metadata !"?AUA@@"), !nosanitize |
35 | // CHECK: br i1 %[[TEST]], label %[[CONT:.*]], label %[[SLOW:.*]], {{.*}} !nosanitize |
36 | // CHECK: [[SLOW]] |
37 | // ITANIUM: call void @__cfi_slowpath_diag(i64 7004155349499253778, i8* %[[VT2]], {{.*}}) {{.*}} !nosanitize |
38 | // MS: call void @__cfi_slowpath_diag(i64 -8005289897957287421, i8* %[[VT2]], {{.*}}) {{.*}} !nosanitize |
39 | // CHECK: br label %[[CONT]], !nosanitize |
40 | // CHECK: [[CONT]] |
41 | // CHECK: call void %{{.*}}(%struct.A* %{{.*}}) |
42 | |
43 | // No hash-based bit set entry for (anonymous namespace)::B |
44 | // ITANIUM-NOT: !{i64 {{.*}}, [3 x i8*]* @_ZTVN12_GLOBAL__N_11BE, |
45 | // MS-NOT: !{i64 {{.*}}, [2 x i8*]* @[[B_VTABLE]], |
46 | |