test/CodeGenCXX/ms-thunks-variadic-return.cpp


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// RUN: %clang_cc1 -fno-rtti-data -triple x86_64-windows-msvc -emit-llvm-only %s -verify

// Verify that we error out on this return adjusting thunk that we can't emit.

struct A {
  virtual A *clone(const char *f, ...) = 0;
};
struct B : virtual A {
  // expected-error@+1 2 {{cannot compile this return-adjusting thunk with variadic arguments yet}}
  B *clone(const char *f, ...) override;
};
struct C : B { int c; };
C c;