27 lines
689 B
C++
27 lines
689 B
C++
// RUN: %clang_cc1 -I%S %s -triple x86_64-apple-darwin10 -emit-llvm -fcxx-exceptions -fexceptions -std=c++11 -o - | FileCheck %s
|
|
struct A { virtual ~A(); };
|
|
struct B final : A { };
|
|
struct C { virtual ~C(); int c; };
|
|
|
|
// CHECK: @_Z1fP1B
|
|
C *f(B* b) {
|
|
// CHECK-NOT: call i8* @__dynamic_cast
|
|
// CHECK: ret %struct.C* null
|
|
return dynamic_cast<C*>(b);
|
|
}
|
|
|
|
// CHECK: @_Z1fR1B
|
|
C &f(B& b) {
|
|
// CHECK-NOT: call i8* @__dynamic_cast
|
|
// CHECK: call void @__cxa_bad_cast() [[NR:#[0-9]+]]
|
|
// CHECK: ret %struct.C* undef
|
|
return dynamic_cast<C&>(b);
|
|
}
|
|
|
|
void dont_crash() {
|
|
(void) dynamic_cast<void*>((A*)0);
|
|
(void) dynamic_cast<void*>((B*)0);
|
|
}
|
|
|
|
// CHECK: attributes [[NR]] = { noreturn }
|