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annotate gcc/config/vax/predicates.md @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents 77e2b8dfacca
children 84e7813d76e9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
55
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1 ;; Predicate definitions for DEC VAX.
111
kono
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2 ;; Copyright (C) 2007-2017 Free Software Foundation, Inc.
55
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3 ;;
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4 ;; This file is part of GCC.
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5 ;;
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6 ;; GCC is free software; you can redistribute it and/or modify it under
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7 ;; the terms of the GNU General Public License as published by the Free
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8 ;; Software Foundation; either version 3, or (at your option) any later
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9 ;; version.
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10 ;;
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11 ;; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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12 ;; WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 ;; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 ;; 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 GCC; see the file COPYING3. If not see
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18 ;; <http://www.gnu.org/licenses/>.
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19
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20 ;; Special case of a symbolic operand that's used as a
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21 ;; operand.
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22
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23 (define_predicate "symbolic_operand"
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24 (match_code "const,symbol_ref,label_ref"))
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25
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26 (define_predicate "local_symbolic_operand"
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27 (match_code "const,symbol_ref,label_ref")
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28 {
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29 if (GET_CODE (op) == LABEL_REF)
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30 return 1;
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31 if (GET_CODE (op) == SYMBOL_REF)
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32 return !flag_pic || SYMBOL_REF_LOCAL_P (op);
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33 if (GET_CODE (XEXP (XEXP (op, 0), 0)) == LABEL_REF)
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34 return 1;
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35 return !flag_pic || SYMBOL_REF_LOCAL_P (XEXP (XEXP (op, 0), 0));
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36 })
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37
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38 (define_predicate "external_symbolic_operand"
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39 (and (match_code "symbol_ref")
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40 (not (match_operand 0 "local_symbolic_operand" ""))))
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41
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42 (define_predicate "external_const_operand"
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43 (and (match_code "const")
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44 (match_test "GET_CODE (XEXP (XEXP (op, 0), 0)) == SYMBOL_REF
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45 && !SYMBOL_REF_LOCAL_P (XEXP (XEXP (op, 0), 0))")))
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46
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47 (define_predicate "nonsymbolic_operand"
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48 (and (ior (match_test "!flag_pic")
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49 (not (match_operand 0 "symbolic_operand")))
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50 (match_operand 0 "general_operand" "")))
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51
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52 (define_predicate "external_memory_operand"
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53 (match_code "mem")
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54 {
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55 rtx addr = XEXP (op, 0);
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56 if (MEM_P (addr))
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57 addr = XEXP (addr, 0);
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58 if (GET_CODE (addr) == PLUS)
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59 addr = XEXP (addr, 1);
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60 if (MEM_P (addr))
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61 addr = XEXP (addr, 0);
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62 if (GET_CODE (addr) == PLUS)
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63 addr = XEXP (addr, 1);
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64 return external_symbolic_operand (addr, SImode)
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65 || external_const_operand (addr, SImode);
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66 })
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67
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68 (define_predicate "indirect_memory_operand"
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69 (match_code "mem")
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70 {
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71 op = XEXP (op, 0);
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72 if (MEM_P (op))
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73 return 1;
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74 if (GET_CODE (op) == PLUS)
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75 op = XEXP (op, 1);
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76 return MEM_P (op);
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77 })
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78
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79 (define_predicate "indexed_memory_operand"
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80 (match_code "mem")
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81 {
111
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82 rtx addr = XEXP (op, 0);
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83 return GET_CODE (addr) != PRE_DEC && GET_CODE (addr) != POST_INC
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84 && mode_dependent_address_p (addr, MEM_ADDR_SPACE (op));
55
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85 })
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86
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87 (define_predicate "illegal_blk_memory_operand"
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88 (and (match_code "mem")
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89 (ior (and (match_test "flag_pic")
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90 (match_operand 0 "external_memory_operand" ""))
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91 (ior (match_operand 0 "indexed_memory_operand" "")
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92 (ior (match_operand 0 "indirect_memory_operand" "")
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93 (match_test "GET_CODE (XEXP (op, 0)) == PRE_DEC"))))))
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94
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95 (define_predicate "illegal_addsub_di_memory_operand"
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96 (and (match_code "mem")
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97 (ior (and (match_test "flag_pic")
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98 (match_operand 0 "external_memory_operand" ""))
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99 (ior (match_operand 0 "indexed_memory_operand" "")
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100 (ior (match_operand 0 "indirect_memory_operand" "")
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101 (match_test "GET_CODE (XEXP (op, 0)) == PRE_DEC"))))))
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102
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103 (define_predicate "nonimmediate_addsub_di_operand"
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104 (and (match_code "subreg,reg,mem")
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105 (and (match_operand:DI 0 "nonimmediate_operand" "")
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106 (not (match_operand:DI 0 "illegal_addsub_di_memory_operand")))))
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107
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108 (define_predicate "general_addsub_di_operand"
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109 (and (match_code "const_int,const_double,subreg,reg,mem")
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110 (and (match_operand:DI 0 "general_operand" "")
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111 (not (match_operand:DI 0 "illegal_addsub_di_memory_operand")))))