projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 9bf86ebb PR |
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 | ||
| 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 | ||
| 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 | ||
| 33 | extern int recog_memoized PROTO((rtx)); | |
| 34 | ||
| 35 | /* Determine whether a proposed change to an insn or MEM will make it | |
| 36 | invalid. Make the change if not. */ | |
| 37 | ||
| 38 | extern int validate_change PROTO((rtx, rtx *, rtx, int)); | |
| 39 | ||
| 40 | /* Apply a group of changes if valid. */ | |
| 41 | ||
| 42 | extern int apply_change_group PROTO((void)); | |
| 43 | ||
| 44 | /* Return the number of changes so far in the current group. */ | |
| 45 | ||
| 46 | extern int num_validated_changes PROTO((void)); | |
| 47 | ||
| 48 | /* Retract some changes. */ | |
| 49 | ||
| 50 | extern void cancel_changes PROTO((int)); | |
| 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 | ||
| 58 | extern void insn_extract PROTO((rtx)); | |
| 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[]; |