On Tue, Jul 4, 2023 at 5:54 PM Julian Waters via Gcc <gcc@gcc.gnu.org> wrote: > > Hi all, > > Currently to disable the warning that a noreturn method does return, it's > required to disable warnings entirely. This can be very inconvenient when > -Werror is enabled with a noreturn method that isn't specifically calling > something like std::abort() at the end, when one wants all other -Wall and > -Wextra warnings to be reported, for instance in the Java HotSpot VM (which > I'm currently adapting to compile with gcc on all supported platforms). Is > there a possibility we can add a disable warning option specifically for > this case? Something like -Wno-returning-noreturn. I'm interested in adding > this myself if it's not convenient for gcc's maintainers to do so at the > moment, but I'd need some guidance on where to look and what the relevant > code is
You could just add __builtin_unreachable(); (or std::unreachable(); if you are C++23 or unreachable() if you are using C23). Or even add while(true) ; I am pretty sure not having an option is on purpose and not really interested in adding an option here because of the above workarounds. Thanks, Andrew Pinski > > best regards, > Julian
