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1.1 root 1: /* Declarations for interface to insn recognizer and insn-output.c.
2: Copyright (C) 1987 Free Software Foundation, Inc.
3:
4: This file is part of GNU CC.
5:
6: GNU CC is free software; you can redistribute it and/or modify
7: it under the terms of the GNU General Public License as published by
8: the Free Software Foundation; either version 2, or (at your option)
9: any later version.
10:
11: GNU CC is distributed in the hope that it will be useful,
12: but WITHOUT ANY WARRANTY; without even the implied warranty of
13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14: GNU General Public License for more details.
15:
16: You should have received a copy of the GNU General Public License
17: along with GNU CC; see the file COPYING. If not, write to
1.1.1.3 ! root 18: the Free Software Foundation, 59 Temple Place - Suite 330,
! 19: Boston, MA 02111-1307, USA. */
1.1 root 20:
1.1.1.2 root 21: /* Add prototype support. */
22: #ifndef PROTO
23: #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__)
24: #define PROTO(ARGS) ARGS
25: #else
26: #define PROTO(ARGS) ()
27: #endif
28: #endif
29:
1.1 root 30: /* Recognize an insn and return its insn-code,
31: which is the sequence number of the DEFINE_INSN that it matches.
32: If the insn does not match, return -1. */
33:
1.1.1.2 root 34: extern int recog_memoized PROTO((rtx));
1.1 root 35:
36: /* Determine whether a proposed change to an insn or MEM will make it
37: invalid. Make the change if not. */
38:
1.1.1.2 root 39: extern int validate_change PROTO((rtx, rtx *, rtx, int));
1.1 root 40:
41: /* Apply a group of changes if valid. */
42:
1.1.1.2 root 43: extern int apply_change_group PROTO((void));
1.1 root 44:
45: /* Return the number of changes so far in the current group. */
46:
1.1.1.2 root 47: extern int num_validated_changes PROTO((void));
1.1 root 48:
49: /* Retract some changes. */
50:
1.1.1.2 root 51: extern void cancel_changes PROTO((int));
1.1 root 52:
53: /* Nonzero means volatile operands are recognized. */
54:
55: extern int volatile_ok;
56:
57: /* Extract the operands from an insn that has been recognized. */
58:
1.1.1.2 root 59: extern void insn_extract PROTO((rtx));
1.1 root 60:
61: /* The following vectors hold the results from insn_extract. */
62:
63: /* Indexed by N, gives value of operand N. */
64: extern rtx recog_operand[];
65:
66: /* Indexed by N, gives location where operand N was found. */
67: extern rtx *recog_operand_loc[];
68:
69: /* Indexed by N, gives location where the Nth duplicate-appearance of
70: an operand was found. This is something that matched MATCH_DUP. */
71: extern rtx *recog_dup_loc[];
72:
73: /* Indexed by N, gives the operand number that was duplicated in the
74: Nth duplicate-appearance of an operand. */
75: extern char recog_dup_num[];
76:
77: #ifndef __STDC__
78: #ifndef const
79: #define const
80: #endif
81: #endif
82:
83: /* Access the output function for CODE. */
84:
85: #define OUT_FCN(CODE) (*insn_outfun[(int) (CODE)])
86:
87: /* Tables defined in insn-output.c that give information about
88: each insn-code value. */
89:
90: /* These are vectors indexed by insn-code. Details in genoutput.c. */
91:
92: extern char *const insn_template[];
93:
94: extern char *(*const insn_outfun[]) ();
95:
96: extern const int insn_n_operands[];
97:
98: extern const int insn_n_dups[];
99:
100: /* Indexed by insn code number, gives # of constraint alternatives. */
101:
102: extern const int insn_n_alternatives[];
103:
104: /* These are two-dimensional arrays indexed first by the insn-code
105: and second by the operand number. Details in genoutput.c. */
106:
107: #ifdef REGISTER_CONSTRAINTS /* Avoid undef sym in certain broken linkers. */
108: extern char *const insn_operand_constraint[][MAX_RECOG_OPERANDS];
109: #endif
110:
111: #ifndef REGISTER_CONSTRAINTS /* Avoid undef sym in certain broken linkers. */
112: extern const char insn_operand_address_p[][MAX_RECOG_OPERANDS];
113: #endif
114:
115: extern const enum machine_mode insn_operand_mode[][MAX_RECOG_OPERANDS];
116:
117: extern const char insn_operand_strict_low[][MAX_RECOG_OPERANDS];
118:
119: extern int (*const insn_operand_predicate[][MAX_RECOG_OPERANDS]) ();
120:
121: extern char * insn_name[];
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