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* config/m32c/m32c-pragma.c (m32c_register_pragmas): Register the __far address space. * config/m32c/m32c.h (ADDR_SPACE_FAR): New. Add support for "__far" address space for R8C and M16C processor variants. * config/m32c/m32c.c (m32c_addr_space_legitimate_address_p): New. (far_addr_space_p): New. (encode_pattern_1): Add sign and zero extend support. (m32c_hard_regno_nregs_1): Large pointers in A16 mode are SImode. (m32c_extra_constraint_p2): Add SF constraint. (m32c_legitimate_address_p): Support __far addresses. (m32c_addr_space_pointer_mode): New. (m32c_addr_space_address_mode): New. (m32c_addr_space_legitimate_address_p): New. (m32c_addr_space_legitimize_address): New. (m32c_addr_space_subset_p): New. (m32c_addr_space_convert): New. (conversions): Add __far operand patterns. (m32c_prepare_move): Force constants into registers for __far moves. (m32c_split_move): __far moves are always split. * config/m32c/addsub.md (addsi3_1): Support SImode symbols. * config/m32c/mov.md (mov<mode>_far_op1): New. (mov<mode>_far_op2): New. (movqi_op): Add __far (SF) support. (movhi_op): Likewise. (movsi_splittable): Split A1A0 also. From-SVN: r165865
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