124 lines
3.6 KiB
C
124 lines
3.6 KiB
C
/* Declarations for interface to insn recognizer and insn-output.c.
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Copyright (C) 1987 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: recog.h,v 1.2 1993/08/02 17:35:29 mycroft Exp $
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*/
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/* Add prototype support. */
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#ifndef PROTO
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#if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
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#define PROTO(ARGS) ARGS
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#else
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#define PROTO(ARGS) ()
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#endif
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#endif
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/* Recognize an insn and return its insn-code,
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which is the sequence number of the DEFINE_INSN that it matches.
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If the insn does not match, return -1. */
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extern int recog_memoized PROTO((rtx));
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/* Determine whether a proposed change to an insn or MEM will make it
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invalid. Make the change if not. */
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extern int validate_change PROTO((rtx, rtx *, rtx, int));
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/* Apply a group of changes if valid. */
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extern int apply_change_group PROTO((void));
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/* Return the number of changes so far in the current group. */
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extern int num_validated_changes PROTO((void));
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/* Retract some changes. */
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extern void cancel_changes PROTO((int));
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/* Nonzero means volatile operands are recognized. */
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extern int volatile_ok;
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/* Extract the operands from an insn that has been recognized. */
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extern void insn_extract PROTO((rtx));
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/* The following vectors hold the results from insn_extract. */
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/* Indexed by N, gives value of operand N. */
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extern rtx recog_operand[];
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/* Indexed by N, gives location where operand N was found. */
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extern rtx *recog_operand_loc[];
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/* Indexed by N, gives location where the Nth duplicate-appearance of
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an operand was found. This is something that matched MATCH_DUP. */
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extern rtx *recog_dup_loc[];
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/* Indexed by N, gives the operand number that was duplicated in the
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Nth duplicate-appearance of an operand. */
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extern char recog_dup_num[];
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#ifndef __STDC__
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#ifndef const
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#define const
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#endif
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#endif
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/* Access the output function for CODE. */
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#define OUT_FCN(CODE) (*insn_outfun[(int) (CODE)])
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/* Tables defined in insn-output.c that give information about
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each insn-code value. */
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/* These are vectors indexed by insn-code. Details in genoutput.c. */
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extern char *const insn_template[];
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extern char *(*const insn_outfun[]) ();
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extern const int insn_n_operands[];
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extern const int insn_n_dups[];
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/* Indexed by insn code number, gives # of constraint alternatives. */
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extern const int insn_n_alternatives[];
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/* These are two-dimensional arrays indexed first by the insn-code
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and second by the operand number. Details in genoutput.c. */
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#ifdef REGISTER_CONSTRAINTS /* Avoid undef sym in certain broken linkers. */
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extern char *const insn_operand_constraint[][MAX_RECOG_OPERANDS];
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#endif
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#ifndef REGISTER_CONSTRAINTS /* Avoid undef sym in certain broken linkers. */
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extern const char insn_operand_address_p[][MAX_RECOG_OPERANDS];
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#endif
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extern const enum machine_mode insn_operand_mode[][MAX_RECOG_OPERANDS];
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extern const char insn_operand_strict_low[][MAX_RECOG_OPERANDS];
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extern int (*const insn_operand_predicate[][MAX_RECOG_OPERANDS]) ();
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extern char * insn_name[];
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