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// RUN: %clang_cc1 -emit-llvm %s -verify -fno-rtti -o - | FileCheck %s
// expected-no-diagnostics
struct A {
virtual ~A(){};
};
struct B : public A {
B() : A() {}
};
// An upcast can be resolved statically and can be used with -fno-rtti, iff it
// does not use runtime support.
A *upcast(B *b) {
return dynamic_cast<A *>(b);
// CHECK-LABEL: define %struct.A* @_Z6upcastP1B
// CHECK-NOT: call i8* @__dynamic_cast
}
// A NoOp dynamic_cast can be used with -fno-rtti iff it does not use
// runtime support.
B *samecast(B *b) {
return dynamic_cast<B *>(b);
// CHECK-LABEL: define %struct.B* @_Z8samecastP1B
// CHECK-NOT: call i8* @__dynamic_cast
}
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