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

/* 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, 2010, 2011, 2012
   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 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 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.
214be03f	2	Copyright (C) 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
b24513a1	3	1999, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011, 2012
66647d44	4	Free Software Foundation, Inc.
bd9f1972 KG	5	Contributed by A. Lichnewsky (lich@inria.inria.fr).
bd9f1972 KG	6	Changed by Michael Meissner (meissner@osf.org).
85f65093	7	64-bit r4000 support by Ian Lance Taylor (ian@cygnus.com) and
bd9f1972 KG	8	Brendan Eich (brendan@microunity.com).
bd9f1972 KG	9
7ec022b2	10	This file is part of GCC.
bd9f1972	11
7ec022b2	12	GCC is free software; you can redistribute it and/or modify
bd9f1972	13	it under the terms of the GNU General Public License as published by
2f83c7d6	14	the Free Software Foundation; either version 3, or (at your option)
bd9f1972 KG	15	any later version.
bd9f1972 KG	16
7ec022b2	17	GCC is distributed in the hope that it will be useful,
bd9f1972 KG	18	but WITHOUT ANY WARRANTY; without even the implied warranty of
	19	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	20	GNU General Public License for more details.
	21
	22	You should have received a copy of the GNU General Public License
2f83c7d6 NC	23	along with GCC; see the file COPYING3. If not see
2f83c7d6 NC	24	<http://www.gnu.org/licenses/>. */
bd9f1972	25
88657302 RH	26	#ifndef GCC_MIPS_PROTOS_H
88657302 RH	27	#define GCC_MIPS_PROTOS_H
bd9f1972	28
280fcbfa RS	29	/* Describes how a symbol is used.
	30
	31	SYMBOL_CONTEXT_CALL
	32	The symbol is used as the target of a call instruction.
	33
	34	SYMBOL_CONTEXT_LEA
	35	The symbol is used in a load-address operation.
	36
	37	SYMBOL_CONTEXT_MEM
	38	The symbol is used as the address in a MEM. */
	39	enum mips_symbol_context {
	40	SYMBOL_CONTEXT_CALL,
	41	SYMBOL_CONTEXT_LEA,
	42	SYMBOL_CONTEXT_MEM
	43	};
	44
e245bd81 RS	45	/* Classifies a SYMBOL_REF, LABEL_REF or UNSPEC address.
e245bd81 RS	46
67da85da RS	47	SYMBOL_ABSOLUTE
	48	The symbol's value will be calculated using absolute relocations,
	49	such as %hi and %lo.
e245bd81	50
67da85da RS	51	SYMBOL_GP_RELATIVE
	52	The symbol's value will be calculated by adding a 16-bit offset
	53	from $gp.
e245bd81	54
67da85da RS	55	SYMBOL_PC_RELATIVE
	56	The symbol's value will be calculated using a MIPS16 PC-relative
	57	calculation.
e245bd81	58
08e7ceb3 RS	59	SYMBOL_GOT_PAGE_OFST
	60	The symbol's value will be calculated by loading an address
	61	from the GOT and then applying a 16-bit offset.
e245bd81	62
08e7ceb3 RS	63	SYMBOL_GOT_DISP
08e7ceb3 RS	64	The symbol's value will be loaded directly from the GOT.
e245bd81 RS	65
e245bd81 RS	66	SYMBOL_GOTOFF_PAGE
08e7ceb3 RS	67	An UNSPEC wrapper around a SYMBOL_GOT_PAGE_OFST. It represents the
08e7ceb3 RS	68	offset from _gp of the GOT entry.
e245bd81	69
08e7ceb3 RS	70	SYMBOL_GOTOFF_DISP
08e7ceb3 RS	71	An UNSPEC wrapper around a SYMBOL_GOT_DISP. It represents the
dd5a833e	72	offset from _gp of the symbol's GOT entry.
e245bd81 RS	73
e245bd81 RS	74	SYMBOL_GOTOFF_CALL
08e7ceb3	75	Like SYMBOL_GOTOFF_DISP, but used when calling a global function.
e245bd81 RS	76	The GOT entry is allowed to point to a stub rather than to the
	77	function itself.
	78
	79	SYMBOL_GOTOFF_LOADGP
	80	An UNSPEC wrapper around a function's address. It represents the
	81	offset of _gp from the start of the function.
	82
69229b81 DJ	83	SYMBOL_TLS
	84	A thread-local symbol.
	85
	86	SYMBOL_TLSGD
	87	SYMBOL_TLSLDM
	88	SYMBOL_DTPREL
	89	SYMBOL_GOTTPREL
	90	SYMBOL_TPREL
	91	UNSPEC wrappers around SYMBOL_TLS, corresponding to the
	92	thread-local storage relocation operators.
	93
e245bd81 RS	94	SYMBOL_64_HIGH
	95	For a 64-bit symbolic address X, this is the value of
	96	(%highest(X) << 16) + %higher(X).
	97
	98	SYMBOL_64_MID
	99	For a 64-bit symbolic address X, this is the value of
	100	(%higher(X) << 16) + %hi(X).
	101
	102	SYMBOL_64_LOW
	103	For a 64-bit symbolic address X, this is the value of
8cb6400c RS	104	(%hi(X) << 16) + %lo(X).
	105
	106	SYMBOL_HALF
	107	An UNSPEC wrapper around any kind of address. It represents the
	108	low 16 bits of that address. */
e245bd81	109	enum mips_symbol_type {
67da85da RS	110	SYMBOL_ABSOLUTE,
	111	SYMBOL_GP_RELATIVE,
	112	SYMBOL_PC_RELATIVE,
08e7ceb3 RS	113	SYMBOL_GOT_PAGE_OFST,
08e7ceb3 RS	114	SYMBOL_GOT_DISP,
e245bd81	115	SYMBOL_GOTOFF_PAGE,
08e7ceb3	116	SYMBOL_GOTOFF_DISP,
e245bd81 RS	117	SYMBOL_GOTOFF_CALL,
e245bd81 RS	118	SYMBOL_GOTOFF_LOADGP,
69229b81 DJ	119	SYMBOL_TLS,
	120	SYMBOL_TLSGD,
	121	SYMBOL_TLSLDM,
	122	SYMBOL_DTPREL,
	123	SYMBOL_GOTTPREL,
	124	SYMBOL_TPREL,
e245bd81 RS	125	SYMBOL_64_HIGH,
e245bd81 RS	126	SYMBOL_64_MID,
8cb6400c RS	127	SYMBOL_64_LOW,
8cb6400c RS	128	SYMBOL_HALF
e245bd81	129	};
8cb6400c	130	#define NUM_SYMBOL_TYPES (SYMBOL_HALF + 1)
e245bd81	131
d9870b7e RS	132	/* Identifiers a style of $gp initialization sequence.
	133
	134	LOADGP_NONE
	135	No initialization sequence is needed.
	136
	137	LOADGP_OLDABI
	138	The o32 and o64 PIC sequence (the kind traditionally generated
	139	by .cpload).
	140
	141	LOADGP_NEWABI
	142	The n32 and n64 PIC sequence (the kind traditionally generated
	143	by .cpsetup).
	144
	145	LOADGP_ABSOLUTE
8cb6400c RS	146	The GNU absolute sequence, as generated by loadgp_absolute.
	147
	148	LOADGP_RTP
	149	The VxWorks RTP PIC sequence, as generated by loadgp_rtp. */
d9870b7e RS	150	enum mips_loadgp_style {
	151	LOADGP_NONE,
	152	LOADGP_OLDABI,
	153	LOADGP_NEWABI,
8cb6400c RS	154	LOADGP_ABSOLUTE,
8cb6400c RS	155	LOADGP_RTP
d9870b7e RS	156	};
d9870b7e RS	157
e1260576 RS	158	struct mips16e_save_restore_info;
e1260576 RS	159
08d0963a RS	160	/* Classifies a type of call.
	161
	162	MIPS_CALL_NORMAL
	163	A normal call or call_value pattern.
	164
	165	MIPS_CALL_SIBCALL
	166	A sibcall or sibcall_value pattern.
	167
	168	MIPS_CALL_EPILOGUE
	169	A call inserted in the epilogue. */
	170	enum mips_call_type {
	171	MIPS_CALL_NORMAL,
	172	MIPS_CALL_SIBCALL,
	173	MIPS_CALL_EPILOGUE
	174	};
	175
4670abb0 RS	176	/* Controls the conditions under which certain instructions are split.
	177
	178	SPLIT_IF_NECESSARY
	179	Only perform splits that are necessary for correctness
	180	(because no unsplit version exists).
	181
	182	SPLIT_FOR_SPEED
	183	Perform splits that are necessary for correctness or
	184	beneficial for code speed.
	185
	186	SPLIT_FOR_SIZE
	187	Perform splits that are necessary for correctness or
	188	beneficial for code size. */
	189	enum mips_split_type {
	190	SPLIT_IF_NECESSARY,
	191	SPLIT_FOR_SPEED,
	192	SPLIT_FOR_SIZE
	193	};
	194
280fcbfa RS	195	extern bool mips_symbolic_constant_p (rtx, enum mips_symbol_context,
280fcbfa RS	196	enum mips_symbol_type *);
65239d20	197	extern int mips_regno_mode_ok_for_base_p (int, enum machine_mode, bool);
96a30b18	198	extern bool mips_stack_address_p (rtx, enum machine_mode);
5955b0a3	199	extern int mips_address_insns (rtx, enum machine_mode, bool);
b4966b1b	200	extern int mips_const_insns (rtx);
c5cb5d18	201	extern int mips_split_const_insns (rtx);
5955b0a3	202	extern int mips_load_store_insns (rtx, rtx);
46490403	203	extern int mips_idiv_insns (void);
51e7252a	204	extern rtx mips_emit_move (rtx, rtx);
a2ccf3c2 RS	205	#ifdef RTX_CODE
	206	extern void mips_emit_binary (enum rtx_code, rtx, rtx, rtx);
	207	#endif
08d0963a RS	208	extern rtx mips_pic_base_register (rtx);
08d0963a RS	209	extern rtx mips_got_load (rtx, rtx, enum mips_symbol_type);
390ea488	210	extern bool mips_split_symbol (rtx, rtx, enum machine_mode, rtx *);
e245bd81	211	extern rtx mips_unspec_address (rtx, enum mips_symbol_type);
36be1dee	212	extern rtx mips_strip_unspec_address (rtx);
ea462dd0	213	extern void mips_move_integer (rtx, rtx, unsigned HOST_WIDE_INT);
b4966b1b	214	extern bool mips_legitimize_move (enum machine_mode, rtx, rtx);
b4966b1b RS	215
	216	extern int m16_uimm3_b (rtx, enum machine_mode);
	217	extern int m16_simm4_1 (rtx, enum machine_mode);
	218	extern int m16_nsimm4_1 (rtx, enum machine_mode);
	219	extern int m16_simm5_1 (rtx, enum machine_mode);
	220	extern int m16_nsimm5_1 (rtx, enum machine_mode);
	221	extern int m16_uimm5_4 (rtx, enum machine_mode);
	222	extern int m16_nuimm5_4 (rtx, enum machine_mode);
	223	extern int m16_simm8_1 (rtx, enum machine_mode);
	224	extern int m16_nsimm8_1 (rtx, enum machine_mode);
	225	extern int m16_uimm8_1 (rtx, enum machine_mode);
	226	extern int m16_nuimm8_1 (rtx, enum machine_mode);
	227	extern int m16_uimm8_m1_1 (rtx, enum machine_mode);
	228	extern int m16_uimm8_4 (rtx, enum machine_mode);
	229	extern int m16_nuimm8_4 (rtx, enum machine_mode);
	230	extern int m16_simm8_8 (rtx, enum machine_mode);
	231	extern int m16_nsimm8_8 (rtx, enum machine_mode);
6b7d57c7	232
65239d20	233	extern rtx mips_subword (rtx, bool);
4670abb0 RS	234	extern bool mips_split_move_p (rtx, rtx, enum mips_split_type);
	235	extern void mips_split_move (rtx, rtx, enum mips_split_type);
	236	extern bool mips_split_move_insn_p (rtx, rtx, rtx);
	237	extern void mips_split_move_insn (rtx, rtx, rtx);
b4966b1b	238	extern const char *mips_output_move (rtx, rtx);
0c433c31 RS	239	extern bool mips_cfun_has_cprestore_slot_p (void);
	240	extern bool mips_cprestore_address_p (rtx, bool);
	241	extern void mips_save_gp_to_cprestore_slot (rtx, rtx, rtx, rtx);
	242	extern void mips_restore_gp_from_cprestore_slot (rtx);
6b7d57c7	243	#ifdef RTX_CODE
f90b7a5a PB	244	extern void mips_expand_scc (rtx *);
f90b7a5a PB	245	extern void mips_expand_conditional_branch (rtx *);
ec4fc7ed	246	extern void mips_expand_vcondv2sf (rtx, rtx, rtx, enum rtx_code, rtx, rtx);
65239d20	247	extern void mips_expand_conditional_move (rtx *);
f90b7a5a	248	extern void mips_expand_conditional_trap (rtx);
6b7d57c7	249	#endif
08d0963a RS	250	extern bool mips_use_pic_fn_addr_reg_p (const_rtx);
	251	extern rtx mips_expand_call (enum mips_call_type, rtx, rtx, rtx, rtx, bool);
	252	extern void mips_split_call (rtx, rtx);
b53da244	253	extern bool mips_get_pic_call_symbol (rtx *, int);
65239d20	254	extern void mips_expand_fcc_reload (rtx, rtx, rtx);
b4966b1b	255	extern void mips_set_return_address (rtx, rtx);
0d8f5d62 RS	256	extern bool mips_move_by_pieces_p (unsigned HOST_WIDE_INT, unsigned int);
0d8f5d62 RS	257	extern bool mips_store_by_pieces_p (unsigned HOST_WIDE_INT, unsigned int);
b4966b1b	258	extern bool mips_expand_block_move (rtx, rtx, rtx);
df770e04	259	extern void mips_expand_synci_loop (rtx, rtx);
b4966b1b	260
65239d20	261	extern void mips_init_cumulative_args (CUMULATIVE_ARGS *, tree);
586de218	262	extern bool mips_pad_arg_upward (enum machine_mode, const_tree);
648bb159	263	extern bool mips_pad_reg_upward (enum machine_mode, tree);
b4966b1b	264
65239d20	265	extern bool mips_expand_ext_as_unaligned_load (rtx, rtx, HOST_WIDE_INT,
aea21190	266	HOST_WIDE_INT, bool);
65239d20 RS	267	extern bool mips_expand_ins_as_unaligned_store (rtx, rtx, HOST_WIDE_INT,
65239d20 RS	268	HOST_WIDE_INT);
9226543b	269	extern bool mips_mem_fits_mode_p (enum machine_mode mode, rtx x);
b4966b1b RS	270	extern void mips_order_regs_for_local_alloc (void);
	271	extern HOST_WIDE_INT mips_debugger_offset (rtx, HOST_WIDE_INT);
	272
cf5fb4b0 RS	273	extern void mips_push_asm_switch (struct mips_asm_switch *);
cf5fb4b0 RS	274	extern void mips_pop_asm_switch (struct mips_asm_switch *);
f8fdb503	275	extern void mips_output_external (FILE , tree, const char );
65239d20	276	extern void mips_output_ascii (FILE , const char , size_t);
ddaf8125	277	extern const char mips_output_tls_reloc_directive (rtx );
35f5add9 RS	278	extern void mips_output_aligned_decl_common (FILE , tree, const char ,
	279	unsigned HOST_WIDE_INT,
	280	unsigned int);
48b2e0a7 RS	281	extern void mips_declare_common_object (FILE , const char ,
	282	const char *, unsigned HOST_WIDE_INT,
	283	unsigned int, bool);
b4966b1b	284	extern void mips_declare_object (FILE , const char , const char *,
99a3237a	285	const char *, ...) ATTRIBUTE_PRINTF_4;
b4966b1b RS	286	extern void mips_declare_object_name (FILE , const char , tree);
	287	extern void mips_finish_declare_object (FILE *, tree, int, int);
	288
96a30b18	289	extern bool mips_small_data_pattern_p (rtx);
108b61d5	290	extern rtx mips_rewrite_small_data (rtx);
e88fb323	291	extern HOST_WIDE_INT mips_initial_elimination_offset (int, int);
b4966b1b	292	extern rtx mips_return_addr (int, rtx);
0c433c31	293	extern bool mips_must_initialize_gp_p (void);
d9870b7e	294	extern enum mips_loadgp_style mips_current_loadgp_style (void);
0c433c31	295	extern void mips_emit_save_slot_move (rtx, rtx, rtx);
b4966b1b	296	extern void mips_expand_prologue (void);
2f7e2abb	297	extern void mips_expand_before_return (void);
65239d20 RS	298	extern void mips_expand_epilogue (bool);
65239d20 RS	299	extern bool mips_can_use_return_insn (void);
b4966b1b RS	300
	301	extern bool mips_cannot_change_mode_class (enum machine_mode,
	302	enum machine_mode, enum reg_class);
a6008bd8	303	extern bool mips_dangerous_for_la25_p (rtx);
e5a2b69d	304	extern bool mips_modes_tieable_p (enum machine_mode, enum machine_mode);
b4966b1b RS	305	extern enum reg_class mips_secondary_reload_class (enum reg_class,
b4966b1b RS	306	enum machine_mode,
65239d20	307	rtx, bool);
b4966b1b	308	extern int mips_class_max_nregs (enum reg_class, enum machine_mode);
b4966b1b RS	309
b4966b1b RS	310	extern int mips_adjust_insn_length (rtx, int);
0c433c31	311	extern void mips_output_load_label (rtx);
a8c1d5f8 RS	312	extern const char mips_output_conditional_branch (rtx, rtx , const char *,
	313	const char *);
	314	extern const char mips_output_order_conditional_branch (rtx, rtx , bool);
6f5a62e9 RS	315	extern const char *mips_output_sync (void);
	316	extern const char mips_output_sync_loop (rtx, rtx );
	317	extern unsigned int mips_sync_loop_insns (rtx, rtx *);
b4966b1b RS	318	extern const char mips_output_division (const char , rtx *);
b4966b1b RS	319	extern unsigned int mips_hard_regno_nregs (int, enum machine_mode);
39ba1719	320	extern bool mips_linked_madd_p (rtx, rtx);
65239d20	321	extern bool mips_store_data_bypass_p (rtx, rtx);
ef2e5300	322	extern int mips_dspalu_bypass_p (rtx, rtx);
4767c570	323	extern rtx mips_prefetch_cookie (rtx, rtx);
b4966b1b	324
b4966b1b RS	325	extern const char *current_section_name (void);
b4966b1b RS	326	extern unsigned int current_section_flags (void);
65239d20	327	extern bool mips_use_ins_ext_p (rtx, HOST_WIDE_INT, HOST_WIDE_INT);
bd9f1972	328
e1260576 RS	329	extern const char *mips16e_output_save_restore (rtx, HOST_WIDE_INT);
	330	extern bool mips16e_save_restore_pattern_p (rtx, HOST_WIDE_INT,
	331	struct mips16e_save_restore_info *);
49912bcd AN	332
	333	extern bool mask_low_and_shift_p (enum machine_mode, rtx, rtx, int);
	334	extern int mask_low_and_shift_len (enum machine_mode, rtx, rtx);
b2c9d70f	335	extern bool and_operands_ok (enum machine_mode, rtx, rtx);
49912bcd	336
06d19617 DD	337	union mips_gen_fn_ptrs
	338	{
	339	rtx (*fn_6) (rtx, rtx, rtx, rtx, rtx, rtx);
	340	rtx (*fn_5) (rtx, rtx, rtx, rtx, rtx);
	341	rtx (*fn_4) (rtx, rtx, rtx, rtx);
	342	};
	343
	344	extern void mips_expand_atomic_qihi (union mips_gen_fn_ptrs,
	345	rtx, rtx, rtx, rtx);
e1260576	346
93581857	347	extern void mips_expand_vector_init (rtx, rtx);
7dab511c RH	348	extern bool mips_expand_vec_perm_const (rtx op[4]);
	349	extern void mips_expand_vec_unpack (rtx op[2], bool, bool);
	350	extern void mips_expand_vec_reduc (rtx, rtx, rtx (*)(rtx, rtx, rtx));
	351	extern void mips_expand_vec_minmax (rtx, rtx, rtx,
	352	rtx (*) (rtx, rtx, rtx), bool);
93581857	353
0c433c31	354	extern bool mips_eh_uses (unsigned int);
e19da24c	355	extern bool mips_epilogue_uses (unsigned int);
1afc5373	356	extern void mips_final_prescan_insn (rtx, rtx *, int);
c640a3bd	357	extern int mips_trampoline_code_size (void);
c376dbfb	358	extern void mips_function_profiler (FILE *);
e19da24c	359
a3c7bb26 AN	360	typedef rtx (*mulsidi3_gen_fn) (rtx, rtx, rtx);
	361	#ifdef RTX_CODE
	362	extern mulsidi3_gen_fn mips_mulsidi3_gen_fn (enum rtx_code);
	363	#endif
	364
88657302	365	#endif /* ! GCC_MIPS_PROTOS_H */