V10/cmd/gcc/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 distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY.  No author or distributor
accepts responsibility to anyone for the consequences of using it
or for whether it serves any particular purpose or works at all,
unless he says so in writing.  Refer to the GNU CC General Public
License for full details.

Everyone is granted permission to copy, modify and redistribute
GNU CC, but only under the conditions described in the
GNU CC General Public License.   A copy of this license is
supposed to have been given to you along with GNU CC so you
can know your rights and responsibilities.  It should be in a
file named COPYING.  Among other things, the copyright notice
and this notice must be preserved on all copies.  */

/* 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[];

/* 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]) ();