* config/rl78/rl78-real.md (addqi3_real): Allow volatiles.
(addhi3_real): Likewise.  Fix [HL+0] syntax.
(subqi3_real): Likewise.
(subhi3_real): Likewise.
(cbranchqi4_real): Likewise.  Allow saddr,#imm.
(cbranchhi4_real): Likewise.
(cbranchhi4_real_inverted): Likewise.
(cbranchsi4_real_lt): Likewise.
(cbranchsi4_real_ge): Likewise.
(cbranchsi4_real_ge): Likewise.
* config/rl78/rl78-virt.md (add<mode>3_virt): Likewise.
(sub<mode>3_virt): Likewise.
(cbranchqi4_virt): Likewise.
(cbranchhi4_virt): Likewise.
* config/rl78/rl78.c (rl78_print_operand_1): 'p' modifier means
always use '[reg+imm]' even when imm is zero.
* config/rl78/predicates.md (rl78_volatile_memory_operand): New.
(rl78_general_operand): New.
(rl78_nonimmediate_operand): New.
(rl78_nonfar_operand): Use them.
(rl78_nonfar_nonimm_operand): Likewise.
(rl78_stack_based_mem): Fix.
* config/rl78/constraints.md (Ibqi): New.
(IBqi): New.
(Wsa): New.
(Wsf): New.
(Cs1): Fix.
* config/rl78/rl78-expand.md (andqi3): Accept volatiles.
(iorqi3): Likewise.
(xorqi3): Likewise.
* config/rl78/rl78-protos.h (rl78_sfr_p): New.

        * config/rl78/constrains (Qs8): New constraint.
        * config/rl78/rl78.c (rl78_flags_already_set): New function.
        * config/rl78/rl78-protos.h (rl78_flags_already_set): New prototype.
        * config/rl78/rl78-real.md (update_Z): New attribute.
        Update patterns to set it.
        (cbranchqi4_real): Call rl78_flags_already_set() to determine if a
        shorter compare and branch sequence can be used.
        (cbranchhi4_real): Likewise.
        (cbranchhi4_real_inverted): Likewise.

* config/rl78/predicates.md (uword_operand): Allow symbol_refs.
* config/rl78/rl78-c.c (rl78_register_pragmas): Register __near
address space.
* config/rl78/rl78.c (rl78_get_name_encoding): New.
(rl78_option_override): Allow -mes0 only if C.
(characterize_address): Support subregs of symbol_refs.
(rl78_addr_space_address_mode): Move.  Add __near.
(rl78_far_p): Likewise.
(rl78_addr_space_pointer_mode): Likewise.
(rl78_as_legitimate_address): Likewise.
(rl78_addr_space_subset_p): Likewise.
(rl78_addr_space_convert): Likewise.
(rl78_print_operand_1): Support 16-bit addressing of 32-bit
symbols with -mes0.
(transcode_memory_rtx): Don't copy ES if -mes0.  Allow symbol[BC]
addressing.
(rl78_alloc_physical_registers_op1): Change logic to prefer
symbol[BC] addressing.
(frodata_section): New.
(rl78_asm_init_sections): Initialize it.
(rl78_select_section): Put __far readonly symbols in .frodata.
(rl78_make_type_far): New.
(rl78_insert_attributes): Force all readonly symbols to be __far when -mes0.
(rl78_asm_out_integer): New.
* config/rl78/rl78.h (ADDR_SPACE_NEAR): New.
* config/rl78/rl78.opt (-mes0): New.

* config/rl78/rl78.h (ASM_OUTPUT_LABELREF): New.
(ASM_OUTPUT_ALIGNED_DECL_COMMON): New.
(ASM_OUTPUT_ALIGNED_DECL_LOCAL): New.
* config/rl78/rl78-protos.h (rl78_output_labelref): New.
(rl78_saddr_p): New.
(rl78_output_aligned_common): New.
* config/rl78/rl78.c (rl78_output_symbol_ref): Strip encodings.
(rl78_handle_saddr_attribute): New.
(rl78_handle_naked_attribute): New.
(rl78_attribute_table): Add saddr.
(rl78_print_operand_1): Don't print '!' on saddr operands.
(rl78_print_operand_1): Strip encodings.
(rl78_sfr_p): New.
(rl78_strip_name_encoding): New.
(rl78_attrlist_to_encoding): New.
(rl78_encode_section_info): New.
(rl78_asm_init_sections): New.
(rl78_select_section): New.
(rl78_output_labelref): New.
(rl78_output_aligned_common): New.
(rl78_asm_out_integer): New.
(rl78_asm_ctor_dtor): New.
(rl78_asm_constructor): New.
(rl78_asm_destructor): New.

* config/rl78/rl78-real.md (movqi_es): Rename to movqi_to_es.
* config/rl78/rl78.c (rl78_expand_epilogue): Update.
(transcode_memory_rtx): Update.
(rl78_expand_epilogue): Use A_REG instead of 0.

Co-Authored-By: Nick Clifton <nickc@redhat.com>

From-SVN: r219791