llvm-project/clang/test/CodeGenCXX/cfi-ms-vbase-derived-cast.cpp

30 lines
656 B
C++

// RUN: %clang_cc1 -flto -flto-unit -emit-llvm -o - -triple=x86_64-pc-win32 %s -fsanitize=cfi-derived-cast -fsanitize-trap=cfi-derived-cast | FileCheck %s
struct foo {
virtual ~foo() {}
virtual void f() = 0;
};
template <typename T>
struct bar : virtual public foo {
void f() {
// CHECK: define{{.*}}@"\01?f@?$bar@Ubaz@@@@UEAAXXZ"
// Load "this", vbtable, vbase offset and vtable.
// CHECK: load
// CHECK: load
// CHECK: load
// CHECK: load
// CHECK: @llvm.type.test{{.*}}!"?AUfoo@@"
static_cast<T&>(*this);
}
};
struct baz : public bar<baz> {
virtual ~baz() {}
};
int main() {
baz *z = new baz;
z->f();
}