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
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
// RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-vcall -fsanitize-trap=cfi-vcall -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=ITANIUM --check-prefix=NDIAG %s
// RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-vcall -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=ITANIUM --check-prefix=DIAG --check-prefix=DIAG-ABORT %s
// RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-vcall -fsanitize-recover=cfi-vcall -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=ITANIUM --check-prefix=DIAG --check-prefix=DIAG-RECOVER %s
// RUN: %clang_cc1 -triple x86_64-pc-windows-msvc -fsanitize=cfi-vcall -fsanitize-trap=cfi-vcall -emit-llvm -o - %s | FileCheck --check-prefix=CHECK --check-prefix=MS --check-prefix=NDIAG %s
// MS: @[[VTA:[0-9]*]] {{.*}} comdat($"\01??_7A@@6B@")
// MS: @[[VTB:[0-9]*]] {{.*}} comdat($"\01??_7B@@6B0@@")
// MS: @[[VTAinB:[0-9]*]] {{.*}} comdat($"\01??_7B@@6BA@@@")
// MS: @[[VTAinC:[0-9]*]] {{.*}} comdat($"\01??_7C@@6B@")
// MS: @[[VTBinD:[0-9]*]] {{.*}} comdat($"\01??_7D@?A@@6BB@@@")
// MS: @[[VTAinBinD:[0-9]*]] {{.*}} comdat($"\01??_7D@?A@@6BA@@@")
// MS: @[[VTFA:[0-9]*]] {{.*}} comdat($"\01??_7FA@?1??foo@@YAXXZ@6B@")
struct A {
A();
virtual void f();
};
struct B : virtual A {
B();
virtual void g();
virtual void h();
};
struct C : virtual A {
C();
};
namespace {
struct D : B, C {
D();
virtual void f();
virtual void h();
};
}
A::A() {}
B::B() {}
C::C() {}
D::D() {}
void A::f() {
}
void B::g() {
}
void D::f() {
}
void D::h() {
}
// DIAG: @[[SRC:.*]] = private unnamed_addr constant [{{.*}} x i8] c"{{.*}}cfi-vcall.cpp\00", align 1
// DIAG: @[[TYPE:.*]] = private unnamed_addr constant { i16, i16, [4 x i8] } { i16 -1, i16 0, [4 x i8] c"'A'\00" }
// DIAG: @[[BADTYPESTATIC:.*]] = private unnamed_addr global { { [{{.*}} x i8]*, i32, i32 }, { i16, i16, [4 x i8] }*, i8 } { { [{{.*}} x i8]*, i32, i32 } { [{{.*}} x i8]* @[[SRC]], i32 [[@LINE+21]], i32 3 }, { i16, i16, [4 x i8] }* @[[TYPE]], i8 0 }
// ITANIUM: define void @_Z2afP1A
// MS: define void @"\01?af@@YAXPEAUA@@@Z"
void af(A *a) {
// ITANIUM: [[P:%[^ ]*]] = call i1 @llvm.bitset.test(i8* [[VT:%[^ ]*]], metadata !"_ZTS1A")
// MS: [[P:%[^ ]*]] = call i1 @llvm.bitset.test(i8* [[VT:%[^ ]*]], metadata !"?AUA@@")
// CHECK-NEXT: br i1 [[P]], label %[[CONTBB:[^ ,]*]], label %[[TRAPBB:[^ ,]*]]
// CHECK-NEXT: {{^$}}
// CHECK: [[TRAPBB]]
// NDIAG-NEXT: call void @llvm.trap()
// NDIAG-NEXT: unreachable
// DIAG-NEXT: [[VTINT:%[^ ]*]] = ptrtoint i8* [[VT]] to i64
// DIAG-ABORT-NEXT: call void @__ubsan_handle_cfi_bad_type_abort(i8* bitcast ({{.*}} @[[BADTYPESTATIC]] to i8*), i64 [[VTINT]])
// DIAG-ABORT-NEXT: unreachable
// DIAG-RECOVER-NEXT: call void @__ubsan_handle_cfi_bad_type(i8* bitcast ({{.*}} @[[BADTYPESTATIC]] to i8*), i64 [[VTINT]])
// DIAG-RECOVER-NEXT: br label %[[CONTBB]]
// CHECK: [[CONTBB]]
// CHECK: call void %
a->f();
}
// ITANIUM: define internal void @_Z3df1PN12_GLOBAL__N_11DE
// MS: define internal void @"\01?df1@@YAXPEAUD@?A@@@Z"
void df1(D *d) {
// ITANIUM: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata ![[DTYPE:[0-9]+]])
// MS: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata !"?AUA@@")
d->f();
}
// ITANIUM: define internal void @_Z3dg1PN12_GLOBAL__N_11DE
// MS: define internal void @"\01?dg1@@YAXPEAUD@?A@@@Z"
void dg1(D *d) {
// ITANIUM: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata !"_ZTS1B")
// MS: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata !"?AUB@@")
d->g();
}
// ITANIUM: define internal void @_Z3dh1PN12_GLOBAL__N_11DE
// MS: define internal void @"\01?dh1@@YAXPEAUD@?A@@@Z"
void dh1(D *d) {
// ITANIUM: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata ![[DTYPE]])
// MS: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata ![[DTYPE:[0-9]+]])
d->h();
}
// ITANIUM: define internal void @_Z3df2PN12_GLOBAL__N_11DE
// MS: define internal void @"\01?df2@@YAXPEAUD@?A@@@Z"
__attribute__((no_sanitize("cfi")))
void df2(D *d) {
// CHECK-NOT: call i1 @llvm.bitset.test
d->f();
}
// ITANIUM: define internal void @_Z3df3PN12_GLOBAL__N_11DE
// MS: define internal void @"\01?df3@@YAXPEAUD@?A@@@Z"
__attribute__((no_sanitize("address"))) __attribute__((no_sanitize("cfi-vcall")))
void df3(D *d) {
// CHECK-NOT: call i1 @llvm.bitset.test
d->f();
}
D d;
void foo() {
df1(&d);
dg1(&d);
dh1(&d);
df2(&d);
df3(&d);
struct FA : A {
void f() {}
} fa;
af(&fa);
}
namespace test2 {
struct A {
virtual void m_fn1();
};
struct B {
virtual void m_fn2();
};
struct C : B, A {};
struct D : C {
void m_fn1();
};
// ITANIUM: define void @_ZN5test21fEPNS_1DE
// MS: define void @"\01?f@test2@@YAXPEAUD@1@@Z"
void f(D *d) {
// ITANIUM: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata !"_ZTSN5test21DE")
// MS: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata !"?AUA@test2@@")
d->m_fn1();
}
}
// Check for the expected number of elements (9 or 15 respectively).
// MS: !llvm.bitsets = !{[[X:[^,]*(,[^,]*){8}]]}
// ITANIUM: !llvm.bitsets = !{[[X:[^,]*(,[^,]*){14}]]}
// ITANIUM-DAG: !{!"_ZTS1A", [3 x i8*]* @_ZTV1A, i64 16}
// ITANIUM-DAG: !{!"_ZTS1A", [7 x i8*]* @_ZTCN12_GLOBAL__N_11DE0_1B, i64 32}
// ITANIUM-DAG: !{!"_ZTS1B", [7 x i8*]* @_ZTCN12_GLOBAL__N_11DE0_1B, i64 32}
// ITANIUM-DAG: !{!"_ZTS1A", [9 x i8*]* @_ZTCN12_GLOBAL__N_11DE8_1C, i64 64}
// ITANIUM-DAG: !{!"_ZTS1C", [9 x i8*]* @_ZTCN12_GLOBAL__N_11DE8_1C, i64 32}
// ITANIUM-DAG: !{!"_ZTS1A", [12 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32}
// ITANIUM-DAG: !{!"_ZTS1B", [12 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32}
// ITANIUM-DAG: !{!"_ZTS1C", [12 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 88}
// ITANIUM-DAG: !{![[DTYPE]], [12 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32}
// ITANIUM-DAG: !{!"_ZTS1A", [7 x i8*]* @_ZTV1B, i64 32}
// ITANIUM-DAG: !{!"_ZTS1B", [7 x i8*]* @_ZTV1B, i64 32}
// ITANIUM-DAG: !{!"_ZTS1A", [5 x i8*]* @_ZTV1C, i64 32}
// ITANIUM-DAG: !{!"_ZTS1C", [5 x i8*]* @_ZTV1C, i64 32}
// ITANIUM-DAG: !{!"_ZTS1A", [3 x i8*]* @_ZTVZ3foovE2FA, i64 16}
// ITANIUM-DAG: !{!{{[0-9]+}}, [3 x i8*]* @_ZTVZ3foovE2FA, i64 16}
// MS-DAG: !{!"?AUA@@", [2 x i8*]* @[[VTA]], i64 8}
// MS-DAG: !{!"?AUB@@", [3 x i8*]* @[[VTB]], i64 8}
// MS-DAG: !{!"?AUA@@", [2 x i8*]* @[[VTAinB]], i64 8}
// MS-DAG: !{!"?AUA@@", [2 x i8*]* @[[VTAinC]], i64 8}
// MS-DAG: !{!"?AUB@@", [3 x i8*]* @[[VTBinD]], i64 8}
// MS-DAG: !{![[DTYPE]], [3 x i8*]* @[[VTBinD]], i64 8}
// MS-DAG: !{!"?AUA@@", [2 x i8*]* @[[VTAinBinD]], i64 8}
// MS-DAG: !{!"?AUA@@", [2 x i8*]* @[[VTFA]], i64 8}
// MS-DAG: !{!{{[0-9]+}}, [2 x i8*]* @[[VTFA]], i64 8}
|
