| /* 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, 2009 |
| 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_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 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 bool mips_cfun_has_cprestore_slot_p (void); |
| extern bool mips_cprestore_address_p (rtx, bool); |
| extern void mips_save_gp_to_cprestore_slot (rtx, rtx, rtx, rtx); |
| extern void mips_restore_gp_from_cprestore_slot (rtx); |
| #ifdef RTX_CODE |
| extern void mips_expand_scc (rtx *); |
| extern void mips_expand_conditional_branch (rtx *); |
| 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 (rtx); |
| #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 bool mips_get_pic_call_symbol (rtx *, int); |
| 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_push_asm_switch (struct mips_asm_switch *); |
| extern void mips_pop_asm_switch (struct mips_asm_switch *); |
| 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 HOST_WIDE_INT mips_initial_elimination_offset (int, int); |
| extern rtx mips_return_addr (int, rtx); |
| extern bool mips_must_initialize_gp_p (void); |
| extern enum mips_loadgp_style mips_current_loadgp_style (void); |
| extern void mips_emit_save_slot_move (rtx, rtx, rtx); |
| 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, 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 void mips_output_load_label (rtx); |
| 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 (void); |
| extern const char *mips_output_sync_loop (rtx, rtx *); |
| extern unsigned int mips_sync_loop_insns (rtx, rtx *); |
| 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); |
| extern bool and_operands_ok (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); |
| |
| extern bool mips_eh_uses (unsigned int); |
| extern bool mips_epilogue_uses (unsigned int); |
| extern void mips_final_prescan_insn (rtx, rtx *, int); |
| extern int mips_trampoline_code_size (void); |
| extern void mips_function_profiler (FILE *); |
| |
| typedef rtx (*mulsidi3_gen_fn) (rtx, rtx, rtx); |
| #ifdef RTX_CODE |
| extern mulsidi3_gen_fn mips_mulsidi3_gen_fn (enum rtx_code); |
| #endif |
| |
| #endif /* ! GCC_MIPS_PROTOS_H */ |
