https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68475
Patrick Palka <ppalka at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ppalka at gcc dot gnu.org --- Comment #2 from Patrick Palka <ppalka at gcc dot gnu.org> --- We don't emit an error for an exception specification mismatch when !flag_exceptions. Not doing so causes us to ICE in merge_exception_specifiers because we assert that either the specifiers are equivalent or errorcount != 0. Looks like this can be fixed either by checking !flag_exceptions in the assert or by removing the flag_exceptions restriction for emitting mismatch errors.