https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59401
--- Comment #9 from Kazumoto Kojima <kkojima at gcc dot gnu.org> --- (In reply to Oleg Endo from comment #8) > change the > value for gbr in sh.h CALL_USED_REGISTERS from '1' to '0' and confirm that > everything is still OK? The comment and document about CALL_USED_REGISTERS say that it must be a superset of FIXED_REGISTERS. CALL_REALLY_USED_REGISTERS might be a macro for that purpose.
