Mercurial > hg > CbC > CbC_gcc
diff gcc/config/mips/mips-protos.h @ 0:a06113de4d67
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author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2009 14:47:48 +0900 |
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children | 77e2b8dfacca |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/config/mips/mips-protos.h Fri Jul 17 14:47:48 2009 +0900 @@ -0,0 +1,335 @@ +/* Prototypes of target machine for GNU compiler. MIPS version. + Copyright (C) 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, + 1999, 2001, 2002, 2003, 2004, 2005, 2007, 2008 + Free Software Foundation, Inc. + Contributed by A. Lichnewsky (lich@inria.inria.fr). + Changed by Michael Meissner (meissner@osf.org). + 64-bit r4000 support by Ian Lance Taylor (ian@cygnus.com) and + Brendan Eich (brendan@microunity.com). + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 3, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING3. If not see +<http://www.gnu.org/licenses/>. */ + +#ifndef GCC_MIPS_PROTOS_H +#define GCC_MIPS_PROTOS_H + +/* Describes how a symbol is used. + + SYMBOL_CONTEXT_CALL + The symbol is used as the target of a call instruction. + + SYMBOL_CONTEXT_LEA + The symbol is used in a load-address operation. + + SYMBOL_CONTEXT_MEM + The symbol is used as the address in a MEM. */ +enum mips_symbol_context { + SYMBOL_CONTEXT_CALL, + SYMBOL_CONTEXT_LEA, + SYMBOL_CONTEXT_MEM +}; + +/* Classifies a SYMBOL_REF, LABEL_REF or UNSPEC address. + + SYMBOL_ABSOLUTE + The symbol's value will be calculated using absolute relocations, + such as %hi and %lo. + + SYMBOL_GP_RELATIVE + The symbol's value will be calculated by adding a 16-bit offset + from $gp. + + SYMBOL_PC_RELATIVE + The symbol's value will be calculated using a MIPS16 PC-relative + calculation. + + SYMBOL_FORCE_TO_MEM + The symbol's value must be forced to memory and loaded from there. + + SYMBOL_GOT_PAGE_OFST + The symbol's value will be calculated by loading an address + from the GOT and then applying a 16-bit offset. + + SYMBOL_GOT_DISP + The symbol's value will be loaded directly from the GOT. + + SYMBOL_GOTOFF_PAGE + An UNSPEC wrapper around a SYMBOL_GOT_PAGE_OFST. It represents the + offset from _gp of the GOT entry. + + SYMBOL_GOTOFF_DISP + An UNSPEC wrapper around a SYMBOL_GOT_DISP. It represents the + the offset from _gp of the symbol's GOT entry. + + SYMBOL_GOTOFF_CALL + Like SYMBOL_GOTOFF_DISP, but used when calling a global function. + The GOT entry is allowed to point to a stub rather than to the + function itself. + + SYMBOL_GOTOFF_LOADGP + An UNSPEC wrapper around a function's address. It represents the + offset of _gp from the start of the function. + + SYMBOL_TLS + A thread-local symbol. + + SYMBOL_TLSGD + SYMBOL_TLSLDM + SYMBOL_DTPREL + SYMBOL_GOTTPREL + SYMBOL_TPREL + UNSPEC wrappers around SYMBOL_TLS, corresponding to the + thread-local storage relocation operators. + + SYMBOL_32_HIGH + For a 32-bit symbolic address X, this is the value of %hi(X). + + SYMBOL_64_HIGH + For a 64-bit symbolic address X, this is the value of + (%highest(X) << 16) + %higher(X). + + SYMBOL_64_MID + For a 64-bit symbolic address X, this is the value of + (%higher(X) << 16) + %hi(X). + + SYMBOL_64_LOW + For a 64-bit symbolic address X, this is the value of + (%hi(X) << 16) + %lo(X). + + SYMBOL_HALF + An UNSPEC wrapper around any kind of address. It represents the + low 16 bits of that address. */ +enum mips_symbol_type { + SYMBOL_ABSOLUTE, + SYMBOL_GP_RELATIVE, + SYMBOL_PC_RELATIVE, + SYMBOL_FORCE_TO_MEM, + SYMBOL_GOT_PAGE_OFST, + SYMBOL_GOT_DISP, + SYMBOL_GOTOFF_PAGE, + SYMBOL_GOTOFF_DISP, + SYMBOL_GOTOFF_CALL, + SYMBOL_GOTOFF_LOADGP, + SYMBOL_TLS, + SYMBOL_TLSGD, + SYMBOL_TLSLDM, + SYMBOL_DTPREL, + SYMBOL_GOTTPREL, + SYMBOL_TPREL, + SYMBOL_32_HIGH, + SYMBOL_64_HIGH, + SYMBOL_64_MID, + SYMBOL_64_LOW, + SYMBOL_HALF +}; +#define NUM_SYMBOL_TYPES (SYMBOL_HALF + 1) + +/* Identifiers a style of $gp initialization sequence. + + LOADGP_NONE + No initialization sequence is needed. + + LOADGP_OLDABI + The o32 and o64 PIC sequence (the kind traditionally generated + by .cpload). + + LOADGP_NEWABI + The n32 and n64 PIC sequence (the kind traditionally generated + by .cpsetup). + + LOADGP_ABSOLUTE + The GNU absolute sequence, as generated by loadgp_absolute. + + LOADGP_RTP + The VxWorks RTP PIC sequence, as generated by loadgp_rtp. */ +enum mips_loadgp_style { + LOADGP_NONE, + LOADGP_OLDABI, + LOADGP_NEWABI, + LOADGP_ABSOLUTE, + LOADGP_RTP +}; + +struct mips16e_save_restore_info; + +/* Classifies a type of call. + + MIPS_CALL_NORMAL + A normal call or call_value pattern. + + MIPS_CALL_SIBCALL + A sibcall or sibcall_value pattern. + + MIPS_CALL_EPILOGUE + A call inserted in the epilogue. */ +enum mips_call_type { + MIPS_CALL_NORMAL, + MIPS_CALL_SIBCALL, + MIPS_CALL_EPILOGUE +}; + +extern bool mips_symbolic_constant_p (rtx, enum mips_symbol_context, + enum mips_symbol_type *); +extern int mips_regno_mode_ok_for_base_p (int, enum machine_mode, bool); +extern bool mips_legitimate_address_p (enum machine_mode, rtx, bool); +extern bool mips_stack_address_p (rtx, enum machine_mode); +extern int mips_address_insns (rtx, enum machine_mode, bool); +extern int mips_const_insns (rtx); +extern int mips_split_const_insns (rtx); +extern int mips_load_store_insns (rtx, rtx); +extern int mips_idiv_insns (void); +extern rtx mips_emit_move (rtx, rtx); +extern rtx mips_pic_base_register (rtx); +extern rtx mips_got_load (rtx, rtx, enum mips_symbol_type); +extern bool mips_split_symbol (rtx, rtx, enum machine_mode, rtx *); +extern rtx mips_unspec_address (rtx, enum mips_symbol_type); +extern bool mips_legitimize_address (rtx *, enum machine_mode); +extern void mips_move_integer (rtx, rtx, unsigned HOST_WIDE_INT); +extern bool mips_legitimize_move (enum machine_mode, rtx, rtx); + +extern int m16_uimm3_b (rtx, enum machine_mode); +extern int m16_simm4_1 (rtx, enum machine_mode); +extern int m16_nsimm4_1 (rtx, enum machine_mode); +extern int m16_simm5_1 (rtx, enum machine_mode); +extern int m16_nsimm5_1 (rtx, enum machine_mode); +extern int m16_uimm5_4 (rtx, enum machine_mode); +extern int m16_nuimm5_4 (rtx, enum machine_mode); +extern int m16_simm8_1 (rtx, enum machine_mode); +extern int m16_nsimm8_1 (rtx, enum machine_mode); +extern int m16_uimm8_1 (rtx, enum machine_mode); +extern int m16_nuimm8_1 (rtx, enum machine_mode); +extern int m16_uimm8_m1_1 (rtx, enum machine_mode); +extern int m16_uimm8_4 (rtx, enum machine_mode); +extern int m16_nuimm8_4 (rtx, enum machine_mode); +extern int m16_simm8_8 (rtx, enum machine_mode); +extern int m16_nsimm8_8 (rtx, enum machine_mode); + +extern rtx mips_subword (rtx, bool); +extern bool mips_split_64bit_move_p (rtx, rtx); +extern void mips_split_doubleword_move (rtx, rtx); +extern const char *mips_output_move (rtx, rtx); +extern void mips_restore_gp (rtx); +#ifdef RTX_CODE +extern bool mips_expand_scc (enum rtx_code, rtx); +extern void mips_expand_conditional_branch (rtx *, enum rtx_code); +extern void mips_expand_vcondv2sf (rtx, rtx, rtx, enum rtx_code, rtx, rtx); +extern void mips_expand_conditional_move (rtx *); +extern void mips_expand_conditional_trap (enum rtx_code); +#endif +extern bool mips_use_pic_fn_addr_reg_p (const_rtx); +extern rtx mips_expand_call (enum mips_call_type, rtx, rtx, rtx, rtx, bool); +extern void mips_split_call (rtx, rtx); +extern void mips_expand_fcc_reload (rtx, rtx, rtx); +extern void mips_set_return_address (rtx, rtx); +extern bool mips_expand_block_move (rtx, rtx, rtx); +extern void mips_expand_synci_loop (rtx, rtx); + +extern void mips_init_cumulative_args (CUMULATIVE_ARGS *, tree); +extern void mips_function_arg_advance (CUMULATIVE_ARGS *, enum machine_mode, + tree, int); +extern rtx mips_function_arg (const CUMULATIVE_ARGS *, + enum machine_mode, tree, int); +extern int mips_function_arg_boundary (enum machine_mode, tree); +extern bool mips_pad_arg_upward (enum machine_mode, const_tree); +extern bool mips_pad_reg_upward (enum machine_mode, tree); + +extern bool mips_expand_ext_as_unaligned_load (rtx, rtx, HOST_WIDE_INT, + HOST_WIDE_INT); +extern bool mips_expand_ins_as_unaligned_store (rtx, rtx, HOST_WIDE_INT, + HOST_WIDE_INT); +extern bool mips_mem_fits_mode_p (enum machine_mode mode, rtx x); +extern void mips_override_options (void); +extern void mips_conditional_register_usage (void); +extern void mips_order_regs_for_local_alloc (void); +extern HOST_WIDE_INT mips_debugger_offset (rtx, HOST_WIDE_INT); + +extern void mips_print_operand (FILE *, rtx, int); +extern void mips_print_operand_address (FILE *, rtx); +extern void mips_output_external (FILE *, tree, const char *); +extern void mips_output_filename (FILE *, const char *); +extern void mips_output_ascii (FILE *, const char *, size_t); +extern void mips_output_aligned_decl_common (FILE *, tree, const char *, + unsigned HOST_WIDE_INT, + unsigned int); +extern void mips_declare_common_object (FILE *, const char *, + const char *, unsigned HOST_WIDE_INT, + unsigned int, bool); +extern void mips_declare_object (FILE *, const char *, const char *, + const char *, ...) ATTRIBUTE_PRINTF_4; +extern void mips_declare_object_name (FILE *, const char *, tree); +extern void mips_finish_declare_object (FILE *, tree, int, int); + +extern bool mips_small_data_pattern_p (rtx); +extern rtx mips_rewrite_small_data (rtx); +extern bool mips_frame_pointer_required (void); +extern HOST_WIDE_INT mips_initial_elimination_offset (int, int); +extern rtx mips_return_addr (int, rtx); +extern enum mips_loadgp_style mips_current_loadgp_style (void); +extern void mips_expand_prologue (void); +extern void mips_expand_before_return (void); +extern void mips_expand_epilogue (bool); +extern bool mips_can_use_return_insn (void); +extern rtx mips_function_value (const_tree, enum machine_mode); + +extern bool mips_cannot_change_mode_class (enum machine_mode, + enum machine_mode, enum reg_class); +extern bool mips_dangerous_for_la25_p (rtx); +extern bool mips_modes_tieable_p (enum machine_mode, enum machine_mode); +extern enum reg_class mips_preferred_reload_class (rtx, enum reg_class); +extern enum reg_class mips_secondary_reload_class (enum reg_class, + enum machine_mode, + rtx, bool); +extern int mips_class_max_nregs (enum reg_class, enum machine_mode); +extern int mips_register_move_cost (enum machine_mode, enum reg_class, + enum reg_class); + +extern int mips_adjust_insn_length (rtx, int); +extern const char *mips_output_load_label (void); +extern const char *mips_output_conditional_branch (rtx, rtx *, const char *, + const char *); +extern const char *mips_output_order_conditional_branch (rtx, rtx *, bool); +extern const char *mips_output_sync_loop (const char *); +extern const char *mips_output_division (const char *, rtx *); +extern unsigned int mips_hard_regno_nregs (int, enum machine_mode); +extern bool mips_linked_madd_p (rtx, rtx); +extern bool mips_store_data_bypass_p (rtx, rtx); +extern rtx mips_prefetch_cookie (rtx, rtx); + +extern void irix_asm_output_align (FILE *, unsigned); +extern const char *current_section_name (void); +extern unsigned int current_section_flags (void); +extern bool mips_use_ins_ext_p (rtx, HOST_WIDE_INT, HOST_WIDE_INT); + +extern const char *mips16e_output_save_restore (rtx, HOST_WIDE_INT); +extern bool mips16e_save_restore_pattern_p (rtx, HOST_WIDE_INT, + struct mips16e_save_restore_info *); + +extern bool mask_low_and_shift_p (enum machine_mode, rtx, rtx, int); +extern int mask_low_and_shift_len (enum machine_mode, rtx, rtx); + +union mips_gen_fn_ptrs +{ + rtx (*fn_6) (rtx, rtx, rtx, rtx, rtx, rtx); + rtx (*fn_5) (rtx, rtx, rtx, rtx, rtx); + rtx (*fn_4) (rtx, rtx, rtx, rtx); +}; + +extern void mips_expand_atomic_qihi (union mips_gen_fn_ptrs, + rtx, rtx, rtx, rtx); + +extern void mips_expand_vector_init (rtx, rtx); + +#endif /* ! GCC_MIPS_PROTOS_H */