rnk marked an inline comment as done.
rnk added inline comments.
================
Comment at: clang/test/CodeGenCXX/ms-thunks-variadic-return.cpp:9
+struct B : virtual A {
+ // expected-error@+1 2 {{cannot compile this return-adjusting thunk with
variadic arguments yet}}
+ B *clone(const char *f, ...) override;
----------------
I do love the optimism of the CGM.ErrorUnsupported diagnostic: "cannot compile
this ${unimplementable_feature} yet".
I suppose it could be done if we standardized a new ABI for variadic virtual
methods with pointer-like return values, so that they emit the main
implementation under a new symbol name that takes a va_list and then the
variadic one thunks to it. =P
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D67028/new/
https://reviews.llvm.org/D67028
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