https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118201
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P3 |P4 --- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Seems I<T>::~I() [with T = F] has been marked DECL_DELETED_FN in defaulted_late_check with if (DECL_DELETED_FN (implicit_fn)) { DECL_DELETED_FN (fn) = 1; return; } and if I call maybe_explain_implicit_decl on the implicit_fn rather than fn, I get pr118201.C:10:7: note: ‘I<F>::~I() noexcept (<uninstantiated>)’ is implicitly deleted because its exception-specification does not match the implicit exception-specification ‘noexcept’ 10 | class I : public T, public virtual H { ~I () = default; }; | ^ Anyway, seems to be error-recovery, the ICE is after tons of errors and only if checking, so nothing will happen on release compilers or with explicit -fchecking pr118201.C:10: confused by earlier errors, bailing out