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64a93ac5 CH |
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 | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
d3379e91 JW |
20 | /* Add prototype support. */ |
21 | #ifndef PROTO | |
22 | #if defined (USE_PROTOTYPES) ? USE_PROTOTYPES : defined (__STDC__) | |
23 | #define PROTO(ARGS) ARGS | |
24 | #else | |
25 | #define PROTO(ARGS) () | |
26 | #endif | |
27 | #endif | |
28 | ||
64a93ac5 CH |
29 | /* Recognize an insn and return its insn-code, |
30 | which is the sequence number of the DEFINE_INSN that it matches. | |
31 | If the insn does not match, return -1. */ | |
32 | ||
d3379e91 | 33 | extern int recog_memoized PROTO((rtx)); |
64a93ac5 CH |
34 | |
35 | /* Determine whether a proposed change to an insn or MEM will make it | |
36 | invalid. Make the change if not. */ | |
37 | ||
d3379e91 | 38 | extern int validate_change PROTO((rtx, rtx *, rtx, int)); |
64a93ac5 CH |
39 | |
40 | /* Apply a group of changes if valid. */ | |
41 | ||
d3379e91 | 42 | extern int apply_change_group PROTO((void)); |
64a93ac5 CH |
43 | |
44 | /* Return the number of changes so far in the current group. */ | |
45 | ||
d3379e91 | 46 | extern int num_validated_changes PROTO((void)); |
64a93ac5 CH |
47 | |
48 | /* Retract some changes. */ | |
49 | ||
d3379e91 | 50 | extern void cancel_changes PROTO((int)); |
64a93ac5 CH |
51 | |
52 | /* Nonzero means volatile operands are recognized. */ | |
53 | ||
54 | extern int volatile_ok; | |
55 | ||
56 | /* Extract the operands from an insn that has been recognized. */ | |
57 | ||
d3379e91 | 58 | extern void insn_extract PROTO((rtx)); |
64a93ac5 CH |
59 | |
60 | /* The following vectors hold the results from insn_extract. */ | |
61 | ||
62 | /* Indexed by N, gives value of operand N. */ | |
63 | extern rtx recog_operand[]; | |
64 | ||
65 | /* Indexed by N, gives location where operand N was found. */ | |
66 | extern rtx *recog_operand_loc[]; | |
67 | ||
68 | /* Indexed by N, gives location where the Nth duplicate-appearance of | |
69 | an operand was found. This is something that matched MATCH_DUP. */ | |
70 | extern rtx *recog_dup_loc[]; | |
71 | ||
72 | /* Indexed by N, gives the operand number that was duplicated in the | |
73 | Nth duplicate-appearance of an operand. */ | |
74 | extern char recog_dup_num[]; | |
75 | ||
76 | #ifndef __STDC__ | |
77 | #ifndef const | |
78 | #define const | |
79 | #endif | |
80 | #endif | |
81 | ||
82 | /* Access the output function for CODE. */ | |
83 | ||
84 | #define OUT_FCN(CODE) (*insn_outfun[(int) (CODE)]) | |
85 | ||
86 | /* Tables defined in insn-output.c that give information about | |
87 | each insn-code value. */ | |
88 | ||
89 | /* These are vectors indexed by insn-code. Details in genoutput.c. */ | |
90 | ||
91 | extern char *const insn_template[]; | |
92 | ||
93 | extern char *(*const insn_outfun[]) (); | |
94 | ||
95 | extern const int insn_n_operands[]; | |
96 | ||
97 | extern const int insn_n_dups[]; | |
98 | ||
99 | /* Indexed by insn code number, gives # of constraint alternatives. */ | |
100 | ||
101 | extern const int insn_n_alternatives[]; | |
102 | ||
103 | /* These are two-dimensional arrays indexed first by the insn-code | |
104 | and second by the operand number. Details in genoutput.c. */ | |
105 | ||
106 | #ifdef REGISTER_CONSTRAINTS /* Avoid undef sym in certain broken linkers. */ | |
107 | extern char *const insn_operand_constraint[][MAX_RECOG_OPERANDS]; | |
108 | #endif | |
109 | ||
110 | #ifndef REGISTER_CONSTRAINTS /* Avoid undef sym in certain broken linkers. */ | |
111 | extern const char insn_operand_address_p[][MAX_RECOG_OPERANDS]; | |
112 | #endif | |
113 | ||
114 | extern const enum machine_mode insn_operand_mode[][MAX_RECOG_OPERANDS]; | |
115 | ||
116 | extern const char insn_operand_strict_low[][MAX_RECOG_OPERANDS]; | |
117 | ||
118 | extern int (*const insn_operand_predicate[][MAX_RECOG_OPERANDS]) (); | |
119 | ||
120 | extern char * insn_name[]; |