[thirdparty/gcc.git] / gcc / config / mips / mips-protos.h

/* Prototypes of target machine for GNU compiler.  MIPS version.
   Copyright (C) 1989-2013 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_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
       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_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_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_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
};

/* Controls the conditions under which certain instructions are split.

   SPLIT_IF_NECESSARY
	Only perform splits that are necessary for correctness
	(because no unsplit version exists).

   SPLIT_FOR_SPEED
	Perform splits that are necessary for correctness or
	beneficial for code speed.

   SPLIT_FOR_SIZE
	Perform splits that are necessary for correctness or
	beneficial for code size.  */
enum mips_split_type {
  SPLIT_IF_NECESSARY,
  SPLIT_FOR_SPEED,
  SPLIT_FOR_SIZE
};

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);
#ifdef RTX_CODE
extern void mips_emit_binary (enum rtx_code, rtx, rtx, rtx);
#endif
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 rtx mips_strip_unspec_address (rtx);
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_move_p (rtx, rtx, enum mips_split_type);
extern void mips_split_move (rtx, rtx, enum mips_split_type);
extern bool mips_split_move_insn_p (rtx, rtx, rtx);
extern void mips_split_move_insn (rtx, 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_move_by_pieces_p (unsigned HOST_WIDE_INT, unsigned int);
extern bool mips_store_by_pieces_p (unsigned HOST_WIDE_INT, unsigned int);
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 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, bool);
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_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_output_external (FILE *, tree, const char *);
extern void mips_output_ascii (FILE *, const char *, size_t);
extern const char *mips_output_tls_reloc_directive (rtx *);
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 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_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_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 const char *mips_output_probe_stack_range (rtx, 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 int mips_dspalu_bypass_p (rtx, rtx);
extern rtx mips_prefetch_cookie (rtx, rtx);

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_expand_vec_perm_const (rtx op[4]);
extern void mips_expand_vec_unpack (rtx op[2], bool, bool);
extern void mips_expand_vec_reduc (rtx, rtx, rtx (*)(rtx, rtx, rtx));
extern void mips_expand_vec_minmax (rtx, rtx, rtx,
				    rtx (*) (rtx, rtx, rtx), bool);

extern const char *umips_output_save_restore (bool, rtx);
extern bool umips_save_restore_pattern_p (bool, rtx);
extern bool umips_load_store_pair_p (bool, rtx *);
extern void umips_output_load_store_pair (bool, rtx *);
extern bool umips_movep_target_p (rtx, rtx);
extern bool umips_12bit_offset_address_p (rtx, enum machine_mode);
extern rtx mips_expand_thread_pointer (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 */
Commit	Line	Data
bd9f1972	1	/* Prototypes of target machine for GNU compiler. MIPS version.
d1e082c2	2	Copyright (C) 1989-2013 Free Software Foundation, Inc.
bd9f1972 KG	3	Contributed by A. Lichnewsky (lich@inria.inria.fr).
bd9f1972 KG	4	Changed by Michael Meissner (meissner@osf.org).
85f65093	5	64-bit r4000 support by Ian Lance Taylor (ian@cygnus.com) and
bd9f1972 KG	6	Brendan Eich (brendan@microunity.com).
bd9f1972 KG	7
7ec022b2	8	This file is part of GCC.
bd9f1972	9
7ec022b2	10	GCC is free software; you can redistribute it and/or modify
bd9f1972	11	it under the terms of the GNU General Public License as published by
2f83c7d6	12	the Free Software Foundation; either version 3, or (at your option)
bd9f1972 KG	13	any later version.
bd9f1972 KG	14
7ec022b2	15	GCC is distributed in the hope that it will be useful,
bd9f1972 KG	16	but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	GNU General Public License for more details.
	19
	20	You should have received a copy of the GNU General Public License
2f83c7d6 NC	21	along with GCC; see the file COPYING3. If not see
2f83c7d6 NC	22	<http://www.gnu.org/licenses/>. */
bd9f1972	23
88657302 RH	24	#ifndef GCC_MIPS_PROTOS_H
88657302 RH	25	#define GCC_MIPS_PROTOS_H
bd9f1972	26
280fcbfa RS	27	/* Describes how a symbol is used.
	28
	29	SYMBOL_CONTEXT_CALL
	30	The symbol is used as the target of a call instruction.
	31
	32	SYMBOL_CONTEXT_LEA
	33	The symbol is used in a load-address operation.
	34
	35	SYMBOL_CONTEXT_MEM
	36	The symbol is used as the address in a MEM. */
	37	enum mips_symbol_context {
	38	SYMBOL_CONTEXT_CALL,
	39	SYMBOL_CONTEXT_LEA,
	40	SYMBOL_CONTEXT_MEM
	41	};
	42
e245bd81 RS	43	/* Classifies a SYMBOL_REF, LABEL_REF or UNSPEC address.
e245bd81 RS	44
67da85da RS	45	SYMBOL_ABSOLUTE
	46	The symbol's value will be calculated using absolute relocations,
	47	such as %hi and %lo.
e245bd81	48
67da85da RS	49	SYMBOL_GP_RELATIVE
	50	The symbol's value will be calculated by adding a 16-bit offset
	51	from $gp.
e245bd81	52
67da85da RS	53	SYMBOL_PC_RELATIVE
	54	The symbol's value will be calculated using a MIPS16 PC-relative
	55	calculation.
e245bd81	56
08e7ceb3 RS	57	SYMBOL_GOT_PAGE_OFST
	58	The symbol's value will be calculated by loading an address
	59	from the GOT and then applying a 16-bit offset.
e245bd81	60
08e7ceb3 RS	61	SYMBOL_GOT_DISP
08e7ceb3 RS	62	The symbol's value will be loaded directly from the GOT.
e245bd81 RS	63
e245bd81 RS	64	SYMBOL_GOTOFF_PAGE
08e7ceb3 RS	65	An UNSPEC wrapper around a SYMBOL_GOT_PAGE_OFST. It represents the
08e7ceb3 RS	66	offset from _gp of the GOT entry.
e245bd81	67
08e7ceb3 RS	68	SYMBOL_GOTOFF_DISP
08e7ceb3 RS	69	An UNSPEC wrapper around a SYMBOL_GOT_DISP. It represents the
dd5a833e	70	offset from _gp of the symbol's GOT entry.
e245bd81 RS	71
e245bd81 RS	72	SYMBOL_GOTOFF_CALL
08e7ceb3	73	Like SYMBOL_GOTOFF_DISP, but used when calling a global function.
e245bd81 RS	74	The GOT entry is allowed to point to a stub rather than to the
	75	function itself.
	76
	77	SYMBOL_GOTOFF_LOADGP
	78	An UNSPEC wrapper around a function's address. It represents the
	79	offset of _gp from the start of the function.
	80
69229b81 DJ	81	SYMBOL_TLS
	82	A thread-local symbol.
	83
	84	SYMBOL_TLSGD
	85	SYMBOL_TLSLDM
	86	SYMBOL_DTPREL
	87	SYMBOL_GOTTPREL
	88	SYMBOL_TPREL
	89	UNSPEC wrappers around SYMBOL_TLS, corresponding to the
	90	thread-local storage relocation operators.
	91
e245bd81 RS	92	SYMBOL_64_HIGH
	93	For a 64-bit symbolic address X, this is the value of
	94	(%highest(X) << 16) + %higher(X).
	95
	96	SYMBOL_64_MID
	97	For a 64-bit symbolic address X, this is the value of
	98	(%higher(X) << 16) + %hi(X).
	99
	100	SYMBOL_64_LOW
	101	For a 64-bit symbolic address X, this is the value of
8cb6400c RS	102	(%hi(X) << 16) + %lo(X).
	103
	104	SYMBOL_HALF
	105	An UNSPEC wrapper around any kind of address. It represents the
	106	low 16 bits of that address. */
e245bd81	107	enum mips_symbol_type {
67da85da RS	108	SYMBOL_ABSOLUTE,
	109	SYMBOL_GP_RELATIVE,
	110	SYMBOL_PC_RELATIVE,
08e7ceb3 RS	111	SYMBOL_GOT_PAGE_OFST,
08e7ceb3 RS	112	SYMBOL_GOT_DISP,
e245bd81	113	SYMBOL_GOTOFF_PAGE,
08e7ceb3	114	SYMBOL_GOTOFF_DISP,
e245bd81 RS	115	SYMBOL_GOTOFF_CALL,
e245bd81 RS	116	SYMBOL_GOTOFF_LOADGP,
69229b81 DJ	117	SYMBOL_TLS,
	118	SYMBOL_TLSGD,
	119	SYMBOL_TLSLDM,
	120	SYMBOL_DTPREL,
	121	SYMBOL_GOTTPREL,
	122	SYMBOL_TPREL,
e245bd81 RS	123	SYMBOL_64_HIGH,
e245bd81 RS	124	SYMBOL_64_MID,
8cb6400c RS	125	SYMBOL_64_LOW,
8cb6400c RS	126	SYMBOL_HALF
e245bd81	127	};
8cb6400c	128	#define NUM_SYMBOL_TYPES (SYMBOL_HALF + 1)
e245bd81	129
d9870b7e RS	130	/* Identifiers a style of $gp initialization sequence.
	131
	132	LOADGP_NONE
	133	No initialization sequence is needed.
	134
	135	LOADGP_OLDABI
	136	The o32 and o64 PIC sequence (the kind traditionally generated
	137	by .cpload).
	138
	139	LOADGP_NEWABI
	140	The n32 and n64 PIC sequence (the kind traditionally generated
	141	by .cpsetup).
	142
	143	LOADGP_ABSOLUTE
8cb6400c RS	144	The GNU absolute sequence, as generated by loadgp_absolute.
	145
	146	LOADGP_RTP
	147	The VxWorks RTP PIC sequence, as generated by loadgp_rtp. */
d9870b7e RS	148	enum mips_loadgp_style {
	149	LOADGP_NONE,
	150	LOADGP_OLDABI,
	151	LOADGP_NEWABI,
8cb6400c RS	152	LOADGP_ABSOLUTE,
8cb6400c RS	153	LOADGP_RTP
d9870b7e RS	154	};
d9870b7e RS	155
e1260576 RS	156	struct mips16e_save_restore_info;
e1260576 RS	157
08d0963a RS	158	/* Classifies a type of call.
	159
	160	MIPS_CALL_NORMAL
	161	A normal call or call_value pattern.
	162
	163	MIPS_CALL_SIBCALL
	164	A sibcall or sibcall_value pattern.
	165
	166	MIPS_CALL_EPILOGUE
	167	A call inserted in the epilogue. */
	168	enum mips_call_type {
	169	MIPS_CALL_NORMAL,
	170	MIPS_CALL_SIBCALL,
	171	MIPS_CALL_EPILOGUE
	172	};
	173
4670abb0 RS	174	/* Controls the conditions under which certain instructions are split.
	175
	176	SPLIT_IF_NECESSARY
	177	Only perform splits that are necessary for correctness
	178	(because no unsplit version exists).
	179
	180	SPLIT_FOR_SPEED
	181	Perform splits that are necessary for correctness or
	182	beneficial for code speed.
	183
	184	SPLIT_FOR_SIZE
	185	Perform splits that are necessary for correctness or
	186	beneficial for code size. */
	187	enum mips_split_type {
	188	SPLIT_IF_NECESSARY,
	189	SPLIT_FOR_SPEED,
	190	SPLIT_FOR_SIZE
	191	};
	192
280fcbfa RS	193	extern bool mips_symbolic_constant_p (rtx, enum mips_symbol_context,
280fcbfa RS	194	enum mips_symbol_type *);
65239d20	195	extern int mips_regno_mode_ok_for_base_p (int, enum machine_mode, bool);
96a30b18	196	extern bool mips_stack_address_p (rtx, enum machine_mode);
5955b0a3	197	extern int mips_address_insns (rtx, enum machine_mode, bool);
b4966b1b	198	extern int mips_const_insns (rtx);
c5cb5d18	199	extern int mips_split_const_insns (rtx);
5955b0a3	200	extern int mips_load_store_insns (rtx, rtx);
46490403	201	extern int mips_idiv_insns (void);
51e7252a	202	extern rtx mips_emit_move (rtx, rtx);
a2ccf3c2 RS	203	#ifdef RTX_CODE
	204	extern void mips_emit_binary (enum rtx_code, rtx, rtx, rtx);
	205	#endif
08d0963a RS	206	extern rtx mips_pic_base_register (rtx);
08d0963a RS	207	extern rtx mips_got_load (rtx, rtx, enum mips_symbol_type);
390ea488	208	extern bool mips_split_symbol (rtx, rtx, enum machine_mode, rtx *);
e245bd81	209	extern rtx mips_unspec_address (rtx, enum mips_symbol_type);
36be1dee	210	extern rtx mips_strip_unspec_address (rtx);
ea462dd0	211	extern void mips_move_integer (rtx, rtx, unsigned HOST_WIDE_INT);
b4966b1b	212	extern bool mips_legitimize_move (enum machine_mode, rtx, rtx);
b4966b1b RS	213
	214	extern int m16_uimm3_b (rtx, enum machine_mode);
	215	extern int m16_simm4_1 (rtx, enum machine_mode);
	216	extern int m16_nsimm4_1 (rtx, enum machine_mode);
	217	extern int m16_simm5_1 (rtx, enum machine_mode);
	218	extern int m16_nsimm5_1 (rtx, enum machine_mode);
	219	extern int m16_uimm5_4 (rtx, enum machine_mode);
	220	extern int m16_nuimm5_4 (rtx, enum machine_mode);
	221	extern int m16_simm8_1 (rtx, enum machine_mode);
	222	extern int m16_nsimm8_1 (rtx, enum machine_mode);
	223	extern int m16_uimm8_1 (rtx, enum machine_mode);
	224	extern int m16_nuimm8_1 (rtx, enum machine_mode);
	225	extern int m16_uimm8_m1_1 (rtx, enum machine_mode);
	226	extern int m16_uimm8_4 (rtx, enum machine_mode);
	227	extern int m16_nuimm8_4 (rtx, enum machine_mode);
	228	extern int m16_simm8_8 (rtx, enum machine_mode);
	229	extern int m16_nsimm8_8 (rtx, enum machine_mode);
6b7d57c7	230
65239d20	231	extern rtx mips_subword (rtx, bool);
4670abb0 RS	232	extern bool mips_split_move_p (rtx, rtx, enum mips_split_type);
	233	extern void mips_split_move (rtx, rtx, enum mips_split_type);
	234	extern bool mips_split_move_insn_p (rtx, rtx, rtx);
	235	extern void mips_split_move_insn (rtx, rtx, rtx);
b4966b1b	236	extern const char *mips_output_move (rtx, rtx);
0c433c31 RS	237	extern bool mips_cfun_has_cprestore_slot_p (void);
	238	extern bool mips_cprestore_address_p (rtx, bool);
	239	extern void mips_save_gp_to_cprestore_slot (rtx, rtx, rtx, rtx);
	240	extern void mips_restore_gp_from_cprestore_slot (rtx);
6b7d57c7	241	#ifdef RTX_CODE
f90b7a5a PB	242	extern void mips_expand_scc (rtx *);
f90b7a5a PB	243	extern void mips_expand_conditional_branch (rtx *);
ec4fc7ed	244	extern void mips_expand_vcondv2sf (rtx, rtx, rtx, enum rtx_code, rtx, rtx);
65239d20	245	extern void mips_expand_conditional_move (rtx *);
f90b7a5a	246	extern void mips_expand_conditional_trap (rtx);
6b7d57c7	247	#endif
08d0963a RS	248	extern bool mips_use_pic_fn_addr_reg_p (const_rtx);
	249	extern rtx mips_expand_call (enum mips_call_type, rtx, rtx, rtx, rtx, bool);
	250	extern void mips_split_call (rtx, rtx);
b53da244	251	extern bool mips_get_pic_call_symbol (rtx *, int);
65239d20	252	extern void mips_expand_fcc_reload (rtx, rtx, rtx);
b4966b1b	253	extern void mips_set_return_address (rtx, rtx);
0d8f5d62 RS	254	extern bool mips_move_by_pieces_p (unsigned HOST_WIDE_INT, unsigned int);
0d8f5d62 RS	255	extern bool mips_store_by_pieces_p (unsigned HOST_WIDE_INT, unsigned int);
b4966b1b	256	extern bool mips_expand_block_move (rtx, rtx, rtx);
df770e04	257	extern void mips_expand_synci_loop (rtx, rtx);
b4966b1b	258
65239d20	259	extern void mips_init_cumulative_args (CUMULATIVE_ARGS *, tree);
586de218	260	extern bool mips_pad_arg_upward (enum machine_mode, const_tree);
648bb159	261	extern bool mips_pad_reg_upward (enum machine_mode, tree);
b4966b1b	262
65239d20	263	extern bool mips_expand_ext_as_unaligned_load (rtx, rtx, HOST_WIDE_INT,
aea21190	264	HOST_WIDE_INT, bool);
65239d20 RS	265	extern bool mips_expand_ins_as_unaligned_store (rtx, rtx, HOST_WIDE_INT,
65239d20 RS	266	HOST_WIDE_INT);
9226543b	267	extern bool mips_mem_fits_mode_p (enum machine_mode mode, rtx x);
b4966b1b RS	268	extern void mips_order_regs_for_local_alloc (void);
	269	extern HOST_WIDE_INT mips_debugger_offset (rtx, HOST_WIDE_INT);
	270
cf5fb4b0 RS	271	extern void mips_push_asm_switch (struct mips_asm_switch *);
cf5fb4b0 RS	272	extern void mips_pop_asm_switch (struct mips_asm_switch *);
f8fdb503	273	extern void mips_output_external (FILE , tree, const char );
65239d20	274	extern void mips_output_ascii (FILE , const char , size_t);
ddaf8125	275	extern const char mips_output_tls_reloc_directive (rtx );
35f5add9 RS	276	extern void mips_output_aligned_decl_common (FILE , tree, const char ,
	277	unsigned HOST_WIDE_INT,
	278	unsigned int);
48b2e0a7 RS	279	extern void mips_declare_common_object (FILE , const char ,
	280	const char *, unsigned HOST_WIDE_INT,
	281	unsigned int, bool);
b4966b1b	282	extern void mips_declare_object (FILE , const char , const char *,
99a3237a	283	const char *, ...) ATTRIBUTE_PRINTF_4;
b4966b1b RS	284	extern void mips_declare_object_name (FILE , const char , tree);
	285	extern void mips_finish_declare_object (FILE *, tree, int, int);
	286
96a30b18	287	extern bool mips_small_data_pattern_p (rtx);
108b61d5	288	extern rtx mips_rewrite_small_data (rtx);
e88fb323	289	extern HOST_WIDE_INT mips_initial_elimination_offset (int, int);
b4966b1b	290	extern rtx mips_return_addr (int, rtx);
0c433c31	291	extern bool mips_must_initialize_gp_p (void);
d9870b7e	292	extern enum mips_loadgp_style mips_current_loadgp_style (void);
0c433c31	293	extern void mips_emit_save_slot_move (rtx, rtx, rtx);
b4966b1b	294	extern void mips_expand_prologue (void);
2f7e2abb	295	extern void mips_expand_before_return (void);
65239d20 RS	296	extern void mips_expand_epilogue (bool);
65239d20 RS	297	extern bool mips_can_use_return_insn (void);
b4966b1b RS	298
	299	extern bool mips_cannot_change_mode_class (enum machine_mode,
	300	enum machine_mode, enum reg_class);
a6008bd8	301	extern bool mips_dangerous_for_la25_p (rtx);
e5a2b69d	302	extern bool mips_modes_tieable_p (enum machine_mode, enum machine_mode);
b4966b1b RS	303	extern enum reg_class mips_secondary_reload_class (enum reg_class,
b4966b1b RS	304	enum machine_mode,
65239d20	305	rtx, bool);
b4966b1b	306	extern int mips_class_max_nregs (enum reg_class, enum machine_mode);
b4966b1b RS	307
b4966b1b RS	308	extern int mips_adjust_insn_length (rtx, int);
0c433c31	309	extern void mips_output_load_label (rtx);
a8c1d5f8 RS	310	extern const char mips_output_conditional_branch (rtx, rtx , const char *,
	311	const char *);
	312	extern const char mips_output_order_conditional_branch (rtx, rtx , bool);
6f5a62e9 RS	313	extern const char *mips_output_sync (void);
	314	extern const char mips_output_sync_loop (rtx, rtx );
	315	extern unsigned int mips_sync_loop_insns (rtx, rtx *);
b4966b1b	316	extern const char mips_output_division (const char , rtx *);
3b601ca3	317	extern const char *mips_output_probe_stack_range (rtx, rtx);
b4966b1b	318	extern unsigned int mips_hard_regno_nregs (int, enum machine_mode);
39ba1719	319	extern bool mips_linked_madd_p (rtx, rtx);
65239d20	320	extern bool mips_store_data_bypass_p (rtx, rtx);
ef2e5300	321	extern int mips_dspalu_bypass_p (rtx, rtx);
4767c570	322	extern rtx mips_prefetch_cookie (rtx, rtx);
b4966b1b	323
b4966b1b RS	324	extern const char *current_section_name (void);
b4966b1b RS	325	extern unsigned int current_section_flags (void);
65239d20	326	extern bool mips_use_ins_ext_p (rtx, HOST_WIDE_INT, HOST_WIDE_INT);
bd9f1972	327
e1260576 RS	328	extern const char *mips16e_output_save_restore (rtx, HOST_WIDE_INT);
	329	extern bool mips16e_save_restore_pattern_p (rtx, HOST_WIDE_INT,
	330	struct mips16e_save_restore_info *);
49912bcd AN	331
	332	extern bool mask_low_and_shift_p (enum machine_mode, rtx, rtx, int);
	333	extern int mask_low_and_shift_len (enum machine_mode, rtx, rtx);
b2c9d70f	334	extern bool and_operands_ok (enum machine_mode, rtx, rtx);
49912bcd	335
06d19617 DD	336	union mips_gen_fn_ptrs
	337	{
	338	rtx (*fn_6) (rtx, rtx, rtx, rtx, rtx, rtx);
	339	rtx (*fn_5) (rtx, rtx, rtx, rtx, rtx);
	340	rtx (*fn_4) (rtx, rtx, rtx, rtx);
	341	};
	342
	343	extern void mips_expand_atomic_qihi (union mips_gen_fn_ptrs,
	344	rtx, rtx, rtx, rtx);
e1260576	345
93581857	346	extern void mips_expand_vector_init (rtx, rtx);
7dab511c RH	347	extern bool mips_expand_vec_perm_const (rtx op[4]);
	348	extern void mips_expand_vec_unpack (rtx op[2], bool, bool);
	349	extern void mips_expand_vec_reduc (rtx, rtx, rtx (*)(rtx, rtx, rtx));
	350	extern void mips_expand_vec_minmax (rtx, rtx, rtx,
	351	rtx (*) (rtx, rtx, rtx), bool);
93581857	352
6941b508 CM	353	extern const char *umips_output_save_restore (bool, rtx);
	354	extern bool umips_save_restore_pattern_p (bool, rtx);
	355	extern bool umips_load_store_pair_p (bool, rtx *);
	356	extern void umips_output_load_store_pair (bool, rtx *);
	357	extern bool umips_movep_target_p (rtx, rtx);
	358	extern bool umips_12bit_offset_address_p (rtx, enum machine_mode);
f959607b CLT	359	extern rtx mips_expand_thread_pointer (rtx);
f959607b CLT	360
0c433c31	361	extern bool mips_eh_uses (unsigned int);
e19da24c	362	extern bool mips_epilogue_uses (unsigned int);
1afc5373	363	extern void mips_final_prescan_insn (rtx, rtx *, int);
c640a3bd	364	extern int mips_trampoline_code_size (void);
c376dbfb	365	extern void mips_function_profiler (FILE *);
e19da24c	366
a3c7bb26 AN	367	typedef rtx (*mulsidi3_gen_fn) (rtx, rtx, rtx);
	368	#ifdef RTX_CODE
	369	extern mulsidi3_gen_fn mips_mulsidi3_gen_fn (enum rtx_code);
	370	#endif
	371
88657302	372	#endif /* ! GCC_MIPS_PROTOS_H */