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- /* Declarations for interface to insn recognizer and insn-output.c.
- Copyright (C) 1987 Free Software Foundation, Inc.
-
- This file is part of GNU CC.
-
- GNU CC 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 2, or (at your option)
- any later version.
-
- GNU CC 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 GNU CC; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* Recognize an insn and return its insn-code,
- which is the sequence number of the DEFINE_INSN that it matches.
- If the insn does not match, return -1. */
-
- extern int recog_memoized ();
-
- /* Determine whether a proposed change to an insn or MEM will make it
- invalid. Make the change if not. */
-
- extern int validate_change ();
-
- /* Apply a group of changes if valid. */
-
- extern int apply_change_group ();
-
- /* Return the number of changes so far in the current group. */
-
- extern int num_validated_changes ();
-
- /* Retract some changes. */
-
- extern void cancel_changes ();
-
- /* Nonzero means volatile operands are recognized. */
-
- extern int volatile_ok;
-
- /* Extract the operands from an insn that has been recognized. */
-
- extern void insn_extract ();
-
- /* The following vectors hold the results from insn_extract. */
-
- /* Indexed by N, gives value of operand N. */
- extern rtx recog_operand[];
-
- /* Indexed by N, gives location where operand N was found. */
- extern rtx *recog_operand_loc[];
-
- /* Indexed by N, gives location where the Nth duplicate-appearance of
- an operand was found. This is something that matched MATCH_DUP. */
- extern rtx *recog_dup_loc[];
-
- /* Indexed by N, gives the operand number that was duplicated in the
- Nth duplicate-appearance of an operand. */
- extern char recog_dup_num[];
-
- #ifndef __STDC__
- #ifndef const
- #define const
- #endif
- #endif
-
- /* Access the output function for CODE. */
-
- #define OUT_FCN(CODE) (*insn_outfun[(int) (CODE)])
-
- /* Tables defined in insn-output.c that give information about
- each insn-code value. */
-
- /* These are vectors indexed by insn-code. Details in genoutput.c. */
-
- extern char *const insn_template[];
-
- extern char *(*const insn_outfun[]) ();
-
- extern const int insn_n_operands[];
-
- extern const int insn_n_dups[];
-
- /* Indexed by insn code number, gives # of constraint alternatives. */
-
- extern const int insn_n_alternatives[];
-
- /* These are two-dimensional arrays indexed first by the insn-code
- and second by the operand number. Details in genoutput.c. */
-
- #ifdef REGISTER_CONSTRAINTS /* Avoid undef sym in certain broken linkers. */
- extern char *const insn_operand_constraint[][MAX_RECOG_OPERANDS];
- #endif
-
- #ifndef REGISTER_CONSTRAINTS /* Avoid undef sym in certain broken linkers. */
- extern const char insn_operand_address_p[][MAX_RECOG_OPERANDS];
- #endif
-
- extern const enum machine_mode insn_operand_mode[][MAX_RECOG_OPERANDS];
-
- extern const char insn_operand_strict_low[][MAX_RECOG_OPERANDS];
-
- extern int (*const insn_operand_predicate[][MAX_RECOG_OPERANDS]) ();
-
- extern char * insn_name[];
-