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        (ARG_POINTER_REGNUM): Likewise.
        (FIXED_REGISTERS): Add entry for MAC register.
        (CALL_USED_REGISTERS< REG_ALLOC_ORDER): Likewise.
        (HARD_REGNO_NREGS): Handle MAC register.
        (HARD_REGNO_MODE_OK< REGNO_OK_FOR_BASE_P): LIkewise.
        (REGISTER_NAMES): Likewise.
        (enum reg_class): New MAC_REGS register class.
        (REG_CLASS_CONTENTS, REGNO_REG_CLASS): Corresponding changes.
        (REG_CLASS_FROM_LETTER): LIkewise.
        (REGISTER_MOVE_COST): Make copies to/from the MAC register
        expenseive.
        (CONDITIONAL_REGISTER_USAGE): Define.
        * h8300/h8300.md (movsi_h8300hs): Renamed from movsi_h8300h.
        Handle moves to/from the MAC register.
        (mac): Two new patterns to use the mac instruction.

        * h8300/h8300.c (notice_update_cc): Fix CC_SET case.
        (restore_compare_p): Remove unused function.
        * h8300/h8300.md: Handle "set" vs "set_zn_c0" correctly.
        (bCC patterns): No longer need to call restore_compare_p.


        * h8300/h8300.c (get_shift_alg): Fix HImode ASHIFTRT by
        13 or 14 bits.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@12848 138bc75d-0d04-0410-961f-82ee72b054a4