* mn10300.c (REG_SAVE_BYTES): Allocate space for AM33 registers.
        (asm_file_start): Emit .am33 into assembly file when compiling for
        the AM33.
        (print_operand_address): Handle POST_INC addresses.
        (can_use_return_insn, initial_offset): Check AM33 registers too.
        (expand_prologue): Check & save AM33 registers too.
        (expand_epilogue): Similarly.
        wise.
        (REG_CLASS_CONTENTS, REGNO_REG_CLASS): Likewise.
        (INDEX_REG_CLASS, REG_CLASS_FROM_LETTER): Likewise.
        (REGNO_OK_FOR_INDEX_P, PREFERRED_RELOAD_CLASS): Likewise.
        (PREFERRED_OUTPUT_RELOAD_CLASS, LIMIT_RELOAD_CLASS): Likewise.
        (REGISTER_MOVE_COST, REGISTER_NAMES): Likewise.
        (HAVE_POST_INCREMENT): Define.
        (GO_IF_LEGITIMATE_ADDRESS): Allow POST_INC addresses for the AM33.
        (GO_IF_MODE_DEPENDENT_ADDRESS): POST_INC is a mode dependent address.
        * mn10300.md (movqi, movhi, addsi, subsi): Add AM33 variants.
        (mulsi, andsi, iorsi, xorsi, notsi): Likewise.
        (ashiftsi, lshiftrtsi, ashiftrtsi): Likewise.
        (zero_extend to SI from QI/HI): Likewise.
        (sign_extend to SI from QI/HI): Likewise.
        (mulsidi3, umulsidi3): New patterns for the AM33.
        (tstsi with zero extension from QI/HI): Add AM33 variants.
        (movsi, movsf, movdi, movdf): Generate efficient code for the AM33 too.
        (return_internal_regs, store_movm): Handle new AM33 registers.
        * t-mn10300 (MULTILIB_OPTIONS, MULTILIB_DIRNAMES): Define.
        (LIBGCC, INSTALL_LIBGCC): Likewise.
        * invoke.texi: Document new flags.

From-SVN: r30748