cfi-unrelated-cast.cpp
899 Bytes
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
// STL allocators should not have unrelated-cast tests applied
// RUN: %clang_cc1 -flto -triple x86_64-unknown-linux -fvisibility hidden -fsanitize=cfi-unrelated-cast -emit-llvm -o - %s | FileCheck %s
#include <stddef.h>
template<class T>
class myalloc {
public:
// CHECK: define{{.*}}allocateE{{.}}
// CHECK-NOT: llvm.type.test
T *allocate(size_t sz) {
return (T*)::operator new(sz);
}
// CHECK: define{{.*}}allocateE{{.}}PKv
// CHECK-NOT: llvm.type.test
T *allocate(size_t sz, const void *ptr) {
return (T*)::operator new(sz);
}
// CHECK: define{{.*}}differentName
// CHECK: llvm.type.test
T *differentName(size_t sz, const void *ptr) {
return (T*)::operator new(sz);
}
};
class C1 {
virtual void f() {}
};
C1 *f1() {
myalloc<C1> allocator;
(void)allocator.allocate(16);
(void)allocator.allocate(16, 0);
(void)allocator.differentName(16, 0);
}