https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120620
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jason at gcc dot gnu.org
--- Comment #5 from Patrick Palka <ppalka at gcc dot gnu.org> ---
(In reply to Patrick Palka from comment #4)
> The ICE (with -std=c++20) started with r13-3299 "c++ modules: ICE with
> dynamic_cast [PR106304]".
This patch causes cxx_dynamic_cast_fn_p to return true for user-written calls
to abi::__dynamic_cast, whereas before it'd only recognize calls to
__dynamic_cast synthesized by build_dynamic_cast_1.
Do we intend to attempt constant evaluation of user-written __dynamic_cast
calls? If so, we need to make cxx_eval_dynamic_cast_fn robust to
non-constant/non-reduced arguments. If not, I think we need to refine
cxx_dynamic_cast_fn_p to return true only for synthesized __dynamic_cast
calls...
