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Diffstat (limited to 'gnu/usr.bin/cc/include/recog.h')
-rw-r--r-- | gnu/usr.bin/cc/include/recog.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/gnu/usr.bin/cc/include/recog.h b/gnu/usr.bin/cc/include/recog.h new file mode 100644 index 0000000..8fc2efb --- /dev/null +++ b/gnu/usr.bin/cc/include/recog.h @@ -0,0 +1,120 @@ +/* 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. */ + +/* Add prototype support. */ +#ifndef PROTO +#if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__) +#define PROTO(ARGS) ARGS +#else +#define PROTO(ARGS) () +#endif +#endif + +/* 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 PROTO((rtx)); + +/* Determine whether a proposed change to an insn or MEM will make it + invalid. Make the change if not. */ + +extern int validate_change PROTO((rtx, rtx *, rtx, int)); + +/* Apply a group of changes if valid. */ + +extern int apply_change_group PROTO((void)); + +/* Return the number of changes so far in the current group. */ + +extern int num_validated_changes PROTO((void)); + +/* Retract some changes. */ + +extern void cancel_changes PROTO((int)); + +/* Nonzero means volatile operands are recognized. */ + +extern int volatile_ok; + +/* Extract the operands from an insn that has been recognized. */ + +extern void insn_extract PROTO((rtx)); + +/* 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[]; |