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 -x c++ -triple x86_64-apple-darwin10 -emit-llvm -o - %s -fsanitize=nullability-assign | FileCheck %s
struct S1 {
int *_Nonnull p;
};
struct S2 {
S1 s1;
};
union U1 {
S1 s1;
S2 s2;
};
// CHECK-LABEL: define void @{{.*}}f1
void f1(int *p) {
U1 u;
// CHECK: [[ICMP:%.*]] = icmp ne i32* {{.*}}, null, !nosanitize
// CHECK-NEXT: br i1 [[ICMP]], {{.*}}, !nosanitize
// CHECK: call void @__ubsan_handle_type_mismatch{{.*}} !nosanitize
// CHECK: store
u.s1.p = p;
// CHECK: [[ICMP:%.*]] = icmp ne i32* {{.*}}, null, !nosanitize
// CHECK-NEXT: br i1 [[ICMP]], {{.*}}, !nosanitize
// CHECK: call void @__ubsan_handle_type_mismatch{{.*}} !nosanitize
// CHECK: store
u.s2.s1.p = p;
// CHECK-NOT: __ubsan_handle_type_mismatch
// CHECK-NOT: store
// CHECK: ret void
}
|
