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