From 64a93ac5582208c6adf7ad8cb62079ebe98c9f25 Mon Sep 17 00:00:00 2001
From: Charles Hannum <mycroft@gnu.org>
Date: Tue, 24 Dec 1991 04:02:47 +0000
Subject: [PATCH] entered into RCS

From-SVN: r136
---
 gcc/recog.h | 111 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 gcc/recog.h

diff --git a/gcc/recog.h b/gcc/recog.h
new file mode 100644
index 00000000000..65057394454
--- /dev/null
+++ b/gcc/recog.h
@@ -0,0 +1,111 @@
+/* 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[];