https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93942
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Frédéric Recoules from comment #2) > Yet, I may be too x86 oriented... as a matter of personal curiosity, do you > known an architecture that allows such dual memory constraint? Yes s390, mvc instruction: http://www.simotime.com/asmins01.htm#MVC Which GCC does emit even.