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

/* Prototypes of target machine for GNU compiler.  MIPS version.
   Copyright (C) 1989-2024 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, machine_mode, bool);
extern bool mips_stack_address_p (rtx, machine_mode);
extern int mips_address_insns (rtx, machine_mode, bool);
extern int mips_const_insns (rtx);
extern int mips_split_const_insns (rtx);
extern int mips_split_128bit_const_insns (rtx);
extern int mips_load_store_insns (rtx, rtx_insn *);
extern int mips_idiv_insns (machine_mode);
extern rtx_insn *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, 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 (machine_mode, rtx, rtx);

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, rtx);
extern bool mips_split_move_insn_p (rtx, rtx, rtx);
extern void mips_split_move_insn (rtx, rtx, rtx);
extern void mips_split_128bit_move (rtx, rtx);
extern bool mips_split_128bit_move_p (rtx, rtx);
extern void mips_split_msa_copy_d (rtx, rtx, rtx, rtx (*)(rtx, rtx, rtx));
extern void mips_split_msa_insert_d (rtx, rtx, rtx, rtx);
extern void mips_split_msa_fill_d (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_insn *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_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_reg_upward (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 (machine_mode mode, rtx x);
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 void mips_set_text_contents_type (FILE *, const char *,
					 unsigned HOST_WIDE_INT, bool);

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_const_vector_same_val_p (rtx, machine_mode);
extern bool mips_const_vector_same_bytes_p (rtx, machine_mode);
extern bool mips_const_vector_same_int_p (rtx, machine_mode, HOST_WIDE_INT,
					  HOST_WIDE_INT);
extern bool mips_const_vector_shuffle_set_p (rtx, machine_mode);
extern bool mips_const_vector_bitimm_set_p (rtx, machine_mode);
extern bool mips_const_vector_bitimm_clr_p (rtx, machine_mode);
extern rtx mips_msa_vec_parallel_const_half (machine_mode, bool);
extern rtx mips_gen_const_int_vector (machine_mode, HOST_WIDE_INT);
extern bool mips_dangerous_for_la25_p (rtx);
extern enum reg_class mips_secondary_reload_class (enum reg_class,
						   machine_mode,
						   rtx, bool);
extern int mips_class_max_nregs (enum reg_class, machine_mode);

extern machine_mode mips_hard_regno_caller_save_mode (unsigned int,
						      unsigned int,
						      machine_mode);
extern int mips_adjust_insn_length (rtx_insn *, int);
extern void mips_output_load_label (rtx);
extern const char *mips_output_conditional_branch (rtx_insn *, rtx *,
						   const char *, const char *);
extern const char *mips_output_order_conditional_branch (rtx_insn *, rtx *,
							 bool);
extern const char *mips_output_equal_conditional_branch (rtx_insn *, rtx *,
							 bool);
extern const char *mips_output_jump (rtx *, int, int, bool);
extern const char *mips_output_sync (void);
extern const char *mips_output_sync_loop (rtx_insn *, rtx *);
extern unsigned int mips_sync_loop_insns (rtx_insn *, rtx *);
extern const char *mips_output_division (const char *, rtx *);
extern const char *mips_msa_output_division (const char *, rtx *);
extern const char *mips_msa_output_shift_immediate (const char *, rtx *);
extern const char *mips_output_probe_stack_range (rtx, rtx);
extern bool mips_hard_regno_rename_ok (unsigned int, unsigned int);
extern bool mips_linked_madd_p (rtx_insn *, rtx_insn *);
extern bool mips_store_data_bypass_p (rtx_insn *, rtx_insn *);
extern int mips_dspalu_bypass_p (rtx, rtx);
extern rtx mips_prefetch_cookie (rtx, rtx);
extern rtx mips_loongson_ext2_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 (machine_mode, rtx, rtx, int);
extern int mask_low_and_shift_len (machine_mode, rtx, rtx);
extern bool and_operands_ok (machine_mode, rtx, rtx);
extern bool mips_fmadd_bypass (rtx_insn *, rtx_insn *);

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 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 int mips_ldst_scaled_shift (machine_mode);
extern bool mips_signed_immediate_p (unsigned HOST_WIDE_INT, int, int);
extern bool mips_unsigned_immediate_p (unsigned HOST_WIDE_INT, int, int);
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, machine_mode);
extern bool mips_9bit_offset_address_p (rtx, machine_mode);
extern bool lwsp_swsp_address_p (rtx, machine_mode);
extern bool m16_based_address_p (rtx, machine_mode,
				 bool (*)(rtx_def*, machine_mode));
extern rtx mips_expand_thread_pointer (rtx);
extern void mips16_expand_get_fcsr (rtx);
extern void mips16_expand_set_fcsr (rtx);

extern bool mips_eh_uses (unsigned int);
extern bool mips_epilogue_uses (unsigned int);
extern void mips_final_prescan_insn (rtx_insn *, rtx *, int);
extern int mips_trampoline_code_size (void);
extern void mips_function_profiler (FILE *);
extern bool mips_load_store_bonding_p (rtx *, machine_mode, bool);

typedef rtx (*mulsidi3_gen_fn) (rtx, rtx, rtx);
#ifdef RTX_CODE
extern mulsidi3_gen_fn mips_mulsidi3_gen_fn (enum rtx_code);
#endif

extern void mips_register_frame_header_opt (void);
extern void mips_expand_vec_cond_expr (machine_mode, machine_mode, rtx *);
extern void mips_expand_vec_cmp_expr (rtx *);

extern void mips_emit_speculation_barrier_function (void);

extern bool mips_bit_clear_p (enum machine_mode, unsigned HOST_WIDE_INT);
extern void mips_bit_clear_info (enum machine_mode, unsigned HOST_WIDE_INT,
				  int *, int *);

#endif /* ! GCC_MIPS_PROTOS_H */
Commit	Line	Data
bd9f1972	1	/* Prototypes of target machine for GNU compiler. MIPS version.
a945c346	2	Copyright (C) 1989-2024 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 *);
ef4bddc2 RS	195	extern int mips_regno_mode_ok_for_base_p (int, machine_mode, bool);
	196	extern bool mips_stack_address_p (rtx, machine_mode);
	197	extern int mips_address_insns (rtx, machine_mode, bool);
b4966b1b	198	extern int mips_const_insns (rtx);
c5cb5d18	199	extern int mips_split_const_insns (rtx);
6cf538da	200	extern int mips_split_128bit_const_insns (rtx);
e8a54173	201	extern int mips_load_store_insns (rtx, rtx_insn *);
6cf538da	202	extern int mips_idiv_insns (machine_mode);
c6f971f4	203	extern rtx_insn *mips_emit_move (rtx, rtx);
a2ccf3c2 RS	204	#ifdef RTX_CODE
	205	extern void mips_emit_binary (enum rtx_code, rtx, rtx, rtx);
	206	#endif
08d0963a RS	207	extern rtx mips_pic_base_register (rtx);
08d0963a RS	208	extern rtx mips_got_load (rtx, rtx, enum mips_symbol_type);
ef4bddc2	209	extern bool mips_split_symbol (rtx, rtx, machine_mode, rtx *);
e245bd81	210	extern rtx mips_unspec_address (rtx, enum mips_symbol_type);
36be1dee	211	extern rtx mips_strip_unspec_address (rtx);
ea462dd0	212	extern void mips_move_integer (rtx, rtx, unsigned HOST_WIDE_INT);
ef4bddc2	213	extern bool mips_legitimize_move (machine_mode, rtx, rtx);
b4966b1b	214
65239d20	215	extern rtx mips_subword (rtx, bool);
4670abb0	216	extern bool mips_split_move_p (rtx, rtx, enum mips_split_type);
23843f47	217	extern void mips_split_move (rtx, rtx, enum mips_split_type, rtx);
4670abb0 RS	218	extern bool mips_split_move_insn_p (rtx, rtx, rtx);
4670abb0 RS	219	extern void mips_split_move_insn (rtx, rtx, rtx);
6cf538da RS	220	extern void mips_split_128bit_move (rtx, rtx);
	221	extern bool mips_split_128bit_move_p (rtx, rtx);
	222	extern void mips_split_msa_copy_d (rtx, rtx, rtx, rtx (*)(rtx, rtx, rtx));
	223	extern void mips_split_msa_insert_d (rtx, rtx, rtx, rtx);
	224	extern void mips_split_msa_fill_d (rtx, rtx);
b4966b1b	225	extern const char *mips_output_move (rtx, rtx);
0c433c31 RS	226	extern bool mips_cfun_has_cprestore_slot_p (void);
	227	extern bool mips_cprestore_address_p (rtx, bool);
	228	extern void mips_save_gp_to_cprestore_slot (rtx, rtx, rtx, rtx);
	229	extern void mips_restore_gp_from_cprestore_slot (rtx);
6b7d57c7	230	#ifdef RTX_CODE
f90b7a5a PB	231	extern void mips_expand_scc (rtx *);
f90b7a5a PB	232	extern void mips_expand_conditional_branch (rtx *);
ec4fc7ed	233	extern void mips_expand_vcondv2sf (rtx, rtx, rtx, enum rtx_code, rtx, rtx);
65239d20	234	extern void mips_expand_conditional_move (rtx *);
f90b7a5a	235	extern void mips_expand_conditional_trap (rtx);
6b7d57c7	236	#endif
08d0963a	237	extern bool mips_use_pic_fn_addr_reg_p (const_rtx);
c6f971f4 DM	238	extern rtx_insn *mips_expand_call (enum mips_call_type, rtx, rtx, rtx, rtx,
c6f971f4 DM	239	bool);
08d0963a	240	extern void mips_split_call (rtx, rtx);
b53da244	241	extern bool mips_get_pic_call_symbol (rtx *, int);
b4966b1b	242	extern void mips_set_return_address (rtx, rtx);
0d8f5d62 RS	243	extern bool mips_move_by_pieces_p (unsigned HOST_WIDE_INT, unsigned int);
0d8f5d62 RS	244	extern bool mips_store_by_pieces_p (unsigned HOST_WIDE_INT, unsigned int);
b4966b1b	245	extern bool mips_expand_block_move (rtx, rtx, rtx);
df770e04	246	extern void mips_expand_synci_loop (rtx, rtx);
b4966b1b	247
65239d20	248	extern void mips_init_cumulative_args (CUMULATIVE_ARGS *, tree);
ef4bddc2	249	extern bool mips_pad_reg_upward (machine_mode, tree);
b4966b1b	250
65239d20	251	extern bool mips_expand_ext_as_unaligned_load (rtx, rtx, HOST_WIDE_INT,
aea21190	252	HOST_WIDE_INT, bool);
65239d20 RS	253	extern bool mips_expand_ins_as_unaligned_store (rtx, rtx, HOST_WIDE_INT,
65239d20 RS	254	HOST_WIDE_INT);
ef4bddc2	255	extern bool mips_mem_fits_mode_p (machine_mode mode, rtx x);
b4966b1b RS	256	extern HOST_WIDE_INT mips_debugger_offset (rtx, HOST_WIDE_INT);
b4966b1b RS	257
cf5fb4b0 RS	258	extern void mips_push_asm_switch (struct mips_asm_switch *);
cf5fb4b0 RS	259	extern void mips_pop_asm_switch (struct mips_asm_switch *);
f8fdb503	260	extern void mips_output_external (FILE , tree, const char );
65239d20	261	extern void mips_output_ascii (FILE , const char , size_t);
ddaf8125	262	extern const char mips_output_tls_reloc_directive (rtx );
35f5add9 RS	263	extern void mips_output_aligned_decl_common (FILE , tree, const char ,
	264	unsigned HOST_WIDE_INT,
	265	unsigned int);
48b2e0a7 RS	266	extern void mips_declare_common_object (FILE , const char ,
	267	const char *, unsigned HOST_WIDE_INT,
	268	unsigned int, bool);
b4966b1b	269	extern void mips_declare_object (FILE , const char , const char *,
99a3237a	270	const char *, ...) ATTRIBUTE_PRINTF_4;
b4966b1b RS	271	extern void mips_declare_object_name (FILE , const char , tree);
b4966b1b RS	272	extern void mips_finish_declare_object (FILE *, tree, int, int);
2fe2aba3	273	extern void mips_set_text_contents_type (FILE , const char ,
0b83fa07	274	unsigned HOST_WIDE_INT, bool);
b4966b1b	275
96a30b18	276	extern bool mips_small_data_pattern_p (rtx);
108b61d5	277	extern rtx mips_rewrite_small_data (rtx);
e88fb323	278	extern HOST_WIDE_INT mips_initial_elimination_offset (int, int);
b4966b1b	279	extern rtx mips_return_addr (int, rtx);
0c433c31	280	extern bool mips_must_initialize_gp_p (void);
d9870b7e	281	extern enum mips_loadgp_style mips_current_loadgp_style (void);
0c433c31	282	extern void mips_emit_save_slot_move (rtx, rtx, rtx);
b4966b1b	283	extern void mips_expand_prologue (void);
2f7e2abb	284	extern void mips_expand_before_return (void);
65239d20 RS	285	extern void mips_expand_epilogue (bool);
65239d20 RS	286	extern bool mips_can_use_return_insn (void);
b4966b1b	287
6cf538da RS	288	extern bool mips_const_vector_same_val_p (rtx, machine_mode);
	289	extern bool mips_const_vector_same_bytes_p (rtx, machine_mode);
	290	extern bool mips_const_vector_same_int_p (rtx, machine_mode, HOST_WIDE_INT,
	291	HOST_WIDE_INT);
	292	extern bool mips_const_vector_shuffle_set_p (rtx, machine_mode);
	293	extern bool mips_const_vector_bitimm_set_p (rtx, machine_mode);
	294	extern bool mips_const_vector_bitimm_clr_p (rtx, machine_mode);
	295	extern rtx mips_msa_vec_parallel_const_half (machine_mode, bool);
334b3c4b	296	extern rtx mips_gen_const_int_vector (machine_mode, HOST_WIDE_INT);
a6008bd8	297	extern bool mips_dangerous_for_la25_p (rtx);
b4966b1b	298	extern enum reg_class mips_secondary_reload_class (enum reg_class,
ef4bddc2	299	machine_mode,
65239d20	300	rtx, bool);
ef4bddc2	301	extern int mips_class_max_nregs (enum reg_class, machine_mode);
b4966b1b	302
050af144 MF	303	extern machine_mode mips_hard_regno_caller_save_mode (unsigned int,
	304	unsigned int,
	305	machine_mode);
c6f971f4	306	extern int mips_adjust_insn_length (rtx_insn *, int);
0c433c31	307	extern void mips_output_load_label (rtx);
c6f971f4 DM	308	extern const char mips_output_conditional_branch (rtx_insn , rtx *,
	309	const char , const char );
	310	extern const char mips_output_order_conditional_branch (rtx_insn , rtx *,
	311	bool);
22219d9b MF	312	extern const char mips_output_equal_conditional_branch (rtx_insn , rtx *,
	313	bool);
	314	extern const char mips_output_jump (rtx , int, int, bool);
6f5a62e9	315	extern const char *mips_output_sync (void);
84034c69 DM	316	extern const char mips_output_sync_loop (rtx_insn , rtx *);
84034c69 DM	317	extern unsigned int mips_sync_loop_insns (rtx_insn , rtx );
b4966b1b	318	extern const char mips_output_division (const char , rtx *);
6cf538da	319	extern const char mips_msa_output_division (const char , rtx *);
f93f0868	320	extern const char mips_msa_output_shift_immediate (const char , rtx *);
3b601ca3	321	extern const char *mips_output_probe_stack_range (rtx, rtx);
ec8a2131	322	extern bool mips_hard_regno_rename_ok (unsigned int, unsigned int);
647d790d	323	extern bool mips_linked_madd_p (rtx_insn , rtx_insn );
e8a54173	324	extern bool mips_store_data_bypass_p (rtx_insn , rtx_insn );
ef2e5300	325	extern int mips_dspalu_bypass_p (rtx, rtx);
4767c570	326	extern rtx mips_prefetch_cookie (rtx, rtx);
d6319811	327	extern rtx mips_loongson_ext2_prefetch_cookie (rtx, rtx);
b4966b1b	328
b4966b1b RS	329	extern const char *current_section_name (void);
b4966b1b RS	330	extern unsigned int current_section_flags (void);
65239d20	331	extern bool mips_use_ins_ext_p (rtx, HOST_WIDE_INT, HOST_WIDE_INT);
bd9f1972	332
e1260576 RS	333	extern const char *mips16e_output_save_restore (rtx, HOST_WIDE_INT);
	334	extern bool mips16e_save_restore_pattern_p (rtx, HOST_WIDE_INT,
	335	struct mips16e_save_restore_info *);
49912bcd	336
ef4bddc2 RS	337	extern bool mask_low_and_shift_p (machine_mode, rtx, rtx, int);
	338	extern int mask_low_and_shift_len (machine_mode, rtx, rtx);
	339	extern bool and_operands_ok (machine_mode, rtx, rtx);
647d790d	340	extern bool mips_fmadd_bypass (rtx_insn , rtx_insn );
49912bcd	341
06d19617 DD	342	union mips_gen_fn_ptrs
	343	{
	344	rtx (*fn_6) (rtx, rtx, rtx, rtx, rtx, rtx);
	345	rtx (*fn_5) (rtx, rtx, rtx, rtx, rtx);
	346	rtx (*fn_4) (rtx, rtx, rtx, rtx);
	347	};
	348
	349	extern void mips_expand_atomic_qihi (union mips_gen_fn_ptrs,
	350	rtx, rtx, rtx, rtx);
e1260576	351
93581857	352	extern void mips_expand_vector_init (rtx, rtx);
7dab511c RH	353	extern void mips_expand_vec_unpack (rtx op[2], bool, bool);
	354	extern void mips_expand_vec_reduc (rtx, rtx, rtx (*)(rtx, rtx, rtx));
	355	extern void mips_expand_vec_minmax (rtx, rtx, rtx,
	356	rtx (*) (rtx, rtx, rtx), bool);
93581857	357
6cf538da	358	extern int mips_ldst_scaled_shift (machine_mode);
03a7dddb CM	359	extern bool mips_signed_immediate_p (unsigned HOST_WIDE_INT, int, int);
03a7dddb CM	360	extern bool mips_unsigned_immediate_p (unsigned HOST_WIDE_INT, int, int);
22c4c869 CM	361	extern const char *umips_output_save_restore (bool, rtx);
	362	extern bool umips_save_restore_pattern_p (bool, rtx);
	363	extern bool umips_load_store_pair_p (bool, rtx *);
	364	extern void umips_output_load_store_pair (bool, rtx *);
	365	extern bool umips_movep_target_p (rtx, rtx);
ef4bddc2	366	extern bool umips_12bit_offset_address_p (rtx, machine_mode);
82f84ecb	367	extern bool mips_9bit_offset_address_p (rtx, machine_mode);
ef4bddc2 RS	368	extern bool lwsp_swsp_address_p (rtx, machine_mode);
ef4bddc2 RS	369	extern bool m16_based_address_p (rtx, machine_mode,
a86b3453	370	bool ()(rtx_def, machine_mode));
f959607b	371	extern rtx mips_expand_thread_pointer (rtx);
a90c0245 RS	372	extern void mips16_expand_get_fcsr (rtx);
a90c0245 RS	373	extern void mips16_expand_set_fcsr (rtx);
f959607b	374
0c433c31	375	extern bool mips_eh_uses (unsigned int);
e19da24c	376	extern bool mips_epilogue_uses (unsigned int);
c6f971f4	377	extern void mips_final_prescan_insn (rtx_insn , rtx , int);
c640a3bd	378	extern int mips_trampoline_code_size (void);
c376dbfb	379	extern void mips_function_profiler (FILE *);
abf96035	380	extern bool mips_load_store_bonding_p (rtx *, machine_mode, bool);
e19da24c	381
a3c7bb26 AN	382	typedef rtx (*mulsidi3_gen_fn) (rtx, rtx, rtx);
	383	#ifdef RTX_CODE
	384	extern mulsidi3_gen_fn mips_mulsidi3_gen_fn (enum rtx_code);
	385	#endif
	386
d41c8b4c	387	extern void mips_register_frame_header_opt (void);
6cf538da	388	extern void mips_expand_vec_cond_expr (machine_mode, machine_mode, rtx *);
45cb789e	389	extern void mips_expand_vec_cmp_expr (rtx *);
d41c8b4c	390
29b74545 YS	391	extern void mips_emit_speculation_barrier_function (void);
29b74545 YS	392
42d6b905 JM	393	extern bool mips_bit_clear_p (enum machine_mode, unsigned HOST_WIDE_INT);
	394	extern void mips_bit_clear_info (enum machine_mode, unsigned HOST_WIDE_INT,
	395	int , int );
	396
88657302	397	#endif /* ! GCC_MIPS_PROTOS_H */