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recog.h
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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 1, 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 ();
/* 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[];
/* 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 *insn_template[];
extern char *(*insn_outfun[]) ();
extern int insn_n_operands[];
extern int insn_n_dups[];
#ifdef INSN_MACHINE_INFO
extern INSN_MACHINE_INFO insn_machine_info[];
#endif
/* Indexed by insn code number, gives # of constraint alternatives. */
extern 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. */
extern char *insn_operand_constraint[][MAX_RECOG_OPERANDS];
extern char insn_operand_address_p[][MAX_RECOG_OPERANDS];
extern enum machine_mode insn_operand_mode[][MAX_RECOG_OPERANDS];
extern char insn_operand_strict_low[][MAX_RECOG_OPERANDS];
extern int (*insn_operand_predicate[][MAX_RECOG_OPERANDS]) ();