clang/test/CodeGenCXX/microsoft-abi-nontrivial-covariant-thunk.cpp

   1 // RUN: %clang_cc1 %s -fno-rtti -emit-llvm-only -o - -triple=i386-pc-win32 -verify
   2
   3 // A is not trivially copyable and must be passed indirectly or with inalloca.
   4 struct A {
   5   A();
   6   A(const A &o);
   7   virtual ~A();
   8   int a;
   9 };
  10
  11 struct B {
  12   B();
  13   int b;
  14   virtual B *clone(A);
  15 };
  16
  17 // Converting from C* to B* requires a this adjustment.
  18 struct C : A, B {
  19   C();
  20   int c;
  21   virtual C *clone(A); // expected-error {{cannot compile this non-trivial argument copy for return-adjusting thunk yet}}
  22 };
  23 B::B() {}  // force emission
  24 C::C() {}  // force emission