https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80926
--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > We do have __builtin_longjmp/setjmp but those are not 1:1 longjmp/setjmp so > adding a standard C builtin for longjmp and setjmp is difficult... Eric, is > that correct? Yes, __builtin_longjmp/setjmp are something else.