## lustrec / src / normalization.ml @ 53206908

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1 | b38ffff3 | ploc | (********************************************************************) |
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2 | (* *) |
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3 | (* The LustreC compiler toolset / The LustreC Development Team *) |
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4 | (* Copyright 2012 - -- ONERA - CNRS - INPT *) |
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5 | (* *) |
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6 | (* LustreC is free software, distributed WITHOUT ANY WARRANTY *) |
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7 | (* under the terms of the GNU Lesser General Public License *) |
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8 | (* version 2.1. *) |
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9 | (* *) |
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10 | (********************************************************************) |
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11 | 0cbf0839 | ploc | |

12 | open Utils |
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13 | open LustreSpec |
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14 | open Corelang |
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15 | open Format |
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16 | |||

17 | 14ebde97 | xthirioux | let expr_true loc ck = |

18 | { expr_tag = Utils.new_tag (); |
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19 | expr_desc = Expr_const (Const_tag tag_true); |
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20 | expr_type = Type_predef.type_bool; |
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21 | expr_clock = ck; |
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22 | expr_delay = Delay.new_var (); |
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23 | expr_annot = None; |
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24 | expr_loc = loc } |
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25 | |||

26 | let expr_false loc ck = |
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27 | { expr_tag = Utils.new_tag (); |
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28 | expr_desc = Expr_const (Const_tag tag_false); |
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29 | expr_type = Type_predef.type_bool; |
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30 | expr_clock = ck; |
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31 | expr_delay = Delay.new_var (); |
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32 | expr_annot = None; |
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33 | expr_loc = loc } |
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34 | |||

35 | let expr_once loc ck = |
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36 | { expr_tag = Utils.new_tag (); |
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37 | expr_desc = Expr_arrow (expr_true loc ck, expr_false loc ck); |
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38 | expr_type = Type_predef.type_bool; |
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39 | expr_clock = ck; |
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40 | expr_delay = Delay.new_var (); |
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41 | expr_annot = None; |
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42 | expr_loc = loc } |
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43 | |||

44 | let is_expr_once = |
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45 | let dummy_expr_once = expr_once Location.dummy_loc (Clocks.new_var true) in |
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46 | fun expr -> Corelang.is_eq_expr expr dummy_expr_once |
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47 | |||

48 | let unfold_arrow expr = |
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49 | match expr.expr_desc with |
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50 | | Expr_arrow (e1, e2) -> |
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51 | let loc = expr.expr_loc in |
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52 | 2cf39a8e | xthirioux | let ck = List.hd (Clocks.clock_list_of_clock expr.expr_clock) in |

53 | 14ebde97 | xthirioux | { expr with expr_desc = Expr_ite (expr_once loc ck, e1, e2) } |

54 | | _ -> assert false |
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55 | |||

56 | 9c4624e4 | tkahsai | let unfold_arrow_active = ref true |

57 | 0cbf0839 | ploc | let cpt_fresh = ref 0 |

58 | |||

59 | (* Generate a new local [node] variable *) |
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60 | let mk_fresh_var node loc ty ck = |
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61 | 0038002e | ploc | let vars = get_node_vars node in |

62 | 0cbf0839 | ploc | let rec aux () = |

63 | incr cpt_fresh; |
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64 | let s = Printf.sprintf "__%s_%d" node.node_id !cpt_fresh in |
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65 | if List.exists (fun v -> v.var_id = s) vars then aux () else |
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66 | { |
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67 | var_id = s; |
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68 | 6a1a01d2 | xthirioux | var_orig = false; |

69 | 0cbf0839 | ploc | var_dec_type = dummy_type_dec; |

70 | var_dec_clock = dummy_clock_dec; |
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71 | var_dec_const = false; |
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72 | 01d48bb0 | xthirioux | var_dec_value = None; |

73 | 0cbf0839 | ploc | var_type = ty; |

74 | var_clock = ck; |
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75 | var_loc = loc |
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76 | } |
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77 | in aux () |
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78 | |||

79 | (* Get the equation in [defs] with [expr] as rhs, if any *) |
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80 | let get_expr_alias defs expr = |
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81 | try Some (List.find (fun eq -> is_eq_expr eq.eq_rhs expr) defs) |
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82 | with |
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83 | Not_found -> None |
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84 | |||

85 | (* Replace [expr] with (tuple of) [locals] *) |
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86 | let replace_expr locals expr = |
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87 | match locals with |
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88 | | [] -> assert false |
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89 | | [v] -> { expr with |
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90 | expr_tag = Utils.new_tag (); |
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91 | expr_desc = Expr_ident v.var_id } |
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92 | | _ -> { expr with |
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93 | expr_tag = Utils.new_tag (); |
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94 | b3f91fdb | xthirioux | expr_desc = Expr_tuple (List.map expr_of_vdecl locals) } |

95 | 0cbf0839 | ploc | |

96 | let unfold_offsets e offsets = |
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97 | let add_offset e d = |
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98 | 53206908 | xthirioux | (*Format.eprintf "add_offset %a %a@." Dimension.pp_dimension (Types.array_type_dimension e.expr_type) Dimension.pp_dimension d;*) |

99 | 0cbf0839 | ploc | { e with |

100 | expr_tag = Utils.new_tag (); |
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101 | expr_loc = d.Dimension.dim_loc; |
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102 | expr_type = Types.array_element_type e.expr_type; |
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103 | 53206908 | xthirioux | expr_desc = Expr_access (e, d) } in |

104 | 0cbf0839 | ploc | List.fold_left add_offset e offsets |

105 | |||

106 | (* Create an alias for [expr], if none exists yet *) |
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107 | let mk_expr_alias node (defs, vars) expr = |
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108 | 2cf39a8e | xthirioux | (*Format.eprintf "mk_expr_alias %a %a %a@." Printers.pp_expr expr Types.print_ty expr.expr_type Clocks.print_ck expr.expr_clock;*) |

109 | 0cbf0839 | ploc | match get_expr_alias defs expr with |

110 | | Some eq -> |
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111 | let aliases = List.map (fun id -> List.find (fun v -> v.var_id = id) vars) eq.eq_lhs in |
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112 | (defs, vars), replace_expr aliases expr |
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113 | | None -> |
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114 | let new_aliases = |
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115 | List.map2 |
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116 | (mk_fresh_var node expr.expr_loc) |
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117 | (Types.type_list_of_type expr.expr_type) |
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118 | (Clocks.clock_list_of_clock expr.expr_clock) in |
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119 | let new_def = |
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120 | mkeq expr.expr_loc (List.map (fun v -> v.var_id) new_aliases, expr) |
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121 | 53206908 | xthirioux | in (new_def::defs, new_aliases@vars), replace_expr new_aliases expr |

122 | 0cbf0839 | ploc | |

123 | 84d9893e | xthirioux | (* Create an alias for [expr], if [expr] is not already an alias (i.e. an ident) |

124 | and [opt] is true *) |
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125 | 53206908 | xthirioux | let mk_expr_alias_opt opt node (defs, vars) expr = |

126 | (*Format.eprintf "mk_expr_alias_opt %B %a %a %a@." opt Printers.pp_expr expr Types.print_ty expr.expr_type Clocks.print_ck expr.expr_clock;*) |
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127 | 84d9893e | xthirioux | match expr.expr_desc with |

128 | | Expr_ident alias -> |
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129 | 53206908 | xthirioux | (defs, vars), expr |

130 | 9c4624e4 | tkahsai | | _ -> |

131 | 53206908 | xthirioux | match get_expr_alias defs expr with |

132 | | Some eq -> |
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133 | let aliases = List.map (fun id -> List.find (fun v -> v.var_id = id) vars) eq.eq_lhs in |
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134 | (defs, vars), replace_expr aliases expr |
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135 | | None -> |
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136 | if opt |
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137 | then |
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138 | let new_aliases = |
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139 | List.map2 |
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140 | (mk_fresh_var node expr.expr_loc) |
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141 | (Types.type_list_of_type expr.expr_type) |
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142 | (Clocks.clock_list_of_clock expr.expr_clock) in |
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143 | let new_def = |
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144 | mkeq expr.expr_loc (List.map (fun v -> v.var_id) new_aliases, expr) |
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145 | in (new_def::defs, new_aliases@vars), replace_expr new_aliases expr |
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146 | else |
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147 | (defs, vars), expr |
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148 | 0cbf0839 | ploc | |

149 | 9c4624e4 | tkahsai | (* Create a (normalized) expression from [ref_e], |

150 | 0cbf0839 | ploc | replacing description with [norm_d], |

151 | 9c4624e4 | tkahsai | taking propagated [offsets] into account |

152 | 0cbf0839 | ploc | in order to change expression type *) |

153 | let mk_norm_expr offsets ref_e norm_d = |
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154 | b3f91fdb | xthirioux | (*Format.eprintf "mk_norm_expr %a %a @." Printers.pp_expr ref_e Printers.pp_expr { ref_e with expr_desc = norm_d};*) |

155 | 0cbf0839 | ploc | let drop_array_type ty = |

156 | Types.map_tuple_type Types.array_element_type ty in |
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157 | { ref_e with |
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158 | expr_desc = norm_d; |
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159 | expr_type = Utils.repeat (List.length offsets) drop_array_type ref_e.expr_type } |
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160 | |||

161 | (* normalize_<foo> : defs * used vars -> <foo> -> (updated defs * updated vars) * normalized <foo> *) |
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162 | let rec normalize_list alias node offsets norm_element defvars elist = |
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163 | List.fold_right |
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164 | (fun t (defvars, qlist) -> |
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165 | let defvars, norm_t = norm_element alias node offsets defvars t in |
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166 | (defvars, norm_t :: qlist) |
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167 | ) elist (defvars, []) |
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168 | |||

169 | let rec normalize_expr ?(alias=true) node offsets defvars expr = |
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170 | 53206908 | xthirioux | (*Format.eprintf "normalize %B %a:%a [%a]@." alias Printers.pp_expr expr Types.print_ty expr.expr_type (Utils.fprintf_list ~sep:"," Dimension.pp_dimension) offsets;*) |

171 | 0cbf0839 | ploc | match expr.expr_desc with |

172 | 9c4624e4 | tkahsai | | Expr_const _ |

173 | 0cbf0839 | ploc | | Expr_ident _ -> defvars, unfold_offsets expr offsets |

174 | | Expr_array elist -> |
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175 | let defvars, norm_elist = normalize_list alias node offsets (fun _ -> normalize_array_expr ~alias:true) defvars elist in |
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176 | let norm_expr = mk_norm_expr offsets expr (Expr_array norm_elist) in |
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177 | mk_expr_alias_opt alias node defvars norm_expr |
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178 | | Expr_power (e1, d) when offsets = [] -> |
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179 | let defvars, norm_e1 = normalize_expr node offsets defvars e1 in |
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180 | let norm_expr = mk_norm_expr offsets expr (Expr_power (norm_e1, d)) in |
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181 | mk_expr_alias_opt alias node defvars norm_expr |
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182 | | Expr_power (e1, d) -> |
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183 | normalize_expr ~alias:alias node (List.tl offsets) defvars e1 |
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184 | | Expr_access (e1, d) -> |
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185 | normalize_expr ~alias:alias node (d::offsets) defvars e1 |
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186 | 9c4624e4 | tkahsai | | Expr_tuple elist -> |

187 | 0cbf0839 | ploc | let defvars, norm_elist = |

188 | normalize_list alias node offsets (fun alias -> normalize_expr ~alias:alias) defvars elist in |
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189 | defvars, mk_norm_expr offsets expr (Expr_tuple norm_elist) |
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190 | 53206908 | xthirioux | | Expr_appl (id, args, None) |

191 | when Basic_library.is_homomorphic_fun id |
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192 | 36454535 | ploc | && Types.is_array_type expr.expr_type -> |

193 | 9c4624e4 | tkahsai | let defvars, norm_args = |

194 | normalize_list |
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195 | 36454535 | ploc | alias |

196 | node |
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197 | 9c4624e4 | tkahsai | offsets |

198 | (fun _ -> normalize_array_expr ~alias:true) |
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199 | defvars |
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200 | (expr_list_of_expr args) |
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201 | 36454535 | ploc | in |

202 | 0cbf0839 | ploc | defvars, mk_norm_expr offsets expr (Expr_appl (id, expr_of_expr_list args.expr_loc norm_args, None)) |

203 | 53206908 | xthirioux | | Expr_appl (id, args, None) when Basic_library.is_expr_internal_fun expr -> |

204 | 0cbf0839 | ploc | let defvars, norm_args = normalize_expr ~alias:true node offsets defvars args in |

205 | defvars, mk_norm_expr offsets expr (Expr_appl (id, norm_args, None)) |
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206 | | Expr_appl (id, args, r) -> |
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207 | let defvars, norm_args = normalize_expr node [] defvars args in |
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208 | let norm_expr = mk_norm_expr [] expr (Expr_appl (id, norm_args, r)) in |
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209 | if offsets <> [] |
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210 | then |
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211 | let defvars, norm_expr = normalize_expr node [] defvars norm_expr in |
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212 | normalize_expr ~alias:alias node offsets defvars norm_expr |
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213 | else |
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214 | 53206908 | xthirioux | mk_expr_alias_opt (alias && not (Basic_library.is_expr_internal_fun expr)) node defvars norm_expr |

215 | 49ddf66d | ploc | | Expr_arrow (e1,e2) when !unfold_arrow_active && not (is_expr_once expr) -> (* Here we differ from Colaco paper: arrows are pushed to the top *) |

216 | 14ebde97 | xthirioux | normalize_expr ~alias:alias node offsets defvars (unfold_arrow expr) |

217 | | Expr_arrow (e1,e2) -> |
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218 | 0cbf0839 | ploc | let defvars, norm_e1 = normalize_expr node offsets defvars e1 in |

219 | let defvars, norm_e2 = normalize_expr node offsets defvars e2 in |
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220 | let norm_expr = mk_norm_expr offsets expr (Expr_arrow (norm_e1, norm_e2)) in |
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221 | mk_expr_alias_opt alias node defvars norm_expr |
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222 | | Expr_pre e -> |
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223 | let defvars, norm_e = normalize_expr node offsets defvars e in |
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224 | let norm_expr = mk_norm_expr offsets expr (Expr_pre norm_e) in |
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225 | mk_expr_alias_opt alias node defvars norm_expr |
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226 | | Expr_fby (e1, e2) -> |
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227 | let defvars, norm_e1 = normalize_expr node offsets defvars e1 in |
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228 | let defvars, norm_e2 = normalize_expr node offsets defvars e2 in |
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229 | let norm_expr = mk_norm_expr offsets expr (Expr_fby (norm_e1, norm_e2)) in |
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230 | mk_expr_alias_opt alias node defvars norm_expr |
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231 | | Expr_when (e, c, l) -> |
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232 | let defvars, norm_e = normalize_expr node offsets defvars e in |
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233 | defvars, mk_norm_expr offsets expr (Expr_when (norm_e, c, l)) |
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234 | | Expr_ite (c, t, e) -> |
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235 | let defvars, norm_c = normalize_guard node defvars c in |
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236 | let defvars, norm_t = normalize_cond_expr node offsets defvars t in |
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237 | let defvars, norm_e = normalize_cond_expr node offsets defvars e in |
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238 | let norm_expr = mk_norm_expr offsets expr (Expr_ite (norm_c, norm_t, norm_e)) in |
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239 | mk_expr_alias_opt alias node defvars norm_expr |
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240 | | Expr_merge (c, hl) -> |
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241 | let defvars, norm_hl = normalize_branches node offsets defvars hl in |
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242 | let norm_expr = mk_norm_expr offsets expr (Expr_merge (c, norm_hl)) in |
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243 | mk_expr_alias_opt alias node defvars norm_expr |
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244 | 9c4624e4 | tkahsai | |

245 | d3e4c22f | xthirioux | (* Creates a conditional with a merge construct, which is more lazy *) |

246 | (* |
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247 | let norm_conditional_as_merge alias node norm_expr offsets defvars expr = |
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248 | match expr.expr_desc with |
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249 | | Expr_ite (c, t, e) -> |
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250 | let defvars, norm_t = norm_expr (alias node offsets defvars t in |
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251 | | _ -> assert false |
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252 | *) |
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253 | 0cbf0839 | ploc | and normalize_branches node offsets defvars hl = |

254 | List.fold_right |
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255 | (fun (t, h) (defvars, norm_q) -> |
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256 | let (defvars, norm_h) = normalize_cond_expr node offsets defvars h in |
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257 | defvars, (t, norm_h) :: norm_q |
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258 | ) |
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259 | hl (defvars, []) |
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260 | |||

261 | and normalize_array_expr ?(alias=true) node offsets defvars expr = |
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262 | 53206908 | xthirioux | (*Format.eprintf "normalize_array %B %a [%a]@." alias Printers.pp_expr expr (Utils.fprintf_list ~sep:"," Dimension.pp_dimension) offsets;*) |

263 | 0cbf0839 | ploc | match expr.expr_desc with |

264 | | Expr_power (e1, d) when offsets = [] -> |
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265 | let defvars, norm_e1 = normalize_expr node offsets defvars e1 in |
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266 | defvars, mk_norm_expr offsets expr (Expr_power (norm_e1, d)) |
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267 | | Expr_power (e1, d) -> |
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268 | normalize_array_expr ~alias:alias node (List.tl offsets) defvars e1 |
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269 | | Expr_access (e1, d) -> normalize_array_expr ~alias:alias node (d::offsets) defvars e1 |
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270 | | Expr_array elist when offsets = [] -> |
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271 | let defvars, norm_elist = normalize_list alias node offsets (fun _ -> normalize_array_expr ~alias:true) defvars elist in |
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272 | defvars, mk_norm_expr offsets expr (Expr_array norm_elist) |
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273 | 53206908 | xthirioux | | Expr_appl (id, args, None) when Basic_library.is_expr_internal_fun expr -> |

274 | 0cbf0839 | ploc | let defvars, norm_args = normalize_list alias node offsets (fun _ -> normalize_array_expr ~alias:true) defvars (expr_list_of_expr args) in |

275 | defvars, mk_norm_expr offsets expr (Expr_appl (id, expr_of_expr_list args.expr_loc norm_args, None)) |
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276 | | _ -> normalize_expr ~alias:alias node offsets defvars expr |
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277 | |||

278 | and normalize_cond_expr ?(alias=true) node offsets defvars expr = |
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279 | (*Format.eprintf "normalize_cond %B %a [%a]@." alias Printers.pp_expr expr (Utils.fprintf_list ~sep:"," Dimension.pp_dimension) offsets;*) |
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280 | match expr.expr_desc with |
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281 | | Expr_access (e1, d) -> |
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282 | normalize_cond_expr ~alias:alias node (d::offsets) defvars e1 |
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283 | | Expr_ite (c, t, e) -> |
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284 | let defvars, norm_c = normalize_guard node defvars c in |
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285 | let defvars, norm_t = normalize_cond_expr node offsets defvars t in |
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286 | let defvars, norm_e = normalize_cond_expr node offsets defvars e in |
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287 | defvars, mk_norm_expr offsets expr (Expr_ite (norm_c, norm_t, norm_e)) |
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288 | | Expr_merge (c, hl) -> |
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289 | let defvars, norm_hl = normalize_branches node offsets defvars hl in |
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290 | defvars, mk_norm_expr offsets expr (Expr_merge (c, norm_hl)) |
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291 | | _ -> normalize_expr ~alias:alias node offsets defvars expr |
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292 | |||

293 | and normalize_guard node defvars expr = |
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294 | 84d9893e | xthirioux | let defvars, norm_expr = normalize_expr node [] defvars expr in |

295 | mk_expr_alias_opt true node defvars norm_expr |
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296 | 0cbf0839 | ploc | |

297 | (* outputs cannot be memories as well. If so, introduce new local variable. |
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298 | *) |
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299 | let decouple_outputs node defvars eq = |
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300 | let rec fold_lhs defvars lhs tys cks = |
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301 | match lhs, tys, cks with |
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302 | | [], [], [] -> defvars, [] |
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303 | | v::qv, t::qt, c::qc -> let (defs_q, vars_q), lhs_q = fold_lhs defvars qv qt qc in |
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304 | if List.exists (fun o -> o.var_id = v) node.node_outputs |
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305 | then |
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306 | let newvar = mk_fresh_var node eq.eq_loc t c in |
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307 | b3f91fdb | xthirioux | let neweq = mkeq eq.eq_loc ([v], expr_of_vdecl newvar) in |

308 | 0cbf0839 | ploc | (neweq :: defs_q, newvar :: vars_q), newvar.var_id :: lhs_q |

309 | else |
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310 | (defs_q, vars_q), v::lhs_q |
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311 | | _ -> assert false in |
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312 | let defvars', lhs' = |
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313 | fold_lhs |
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314 | defvars |
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315 | eq.eq_lhs |
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316 | (Types.type_list_of_type eq.eq_rhs.expr_type) |
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317 | (Clocks.clock_list_of_clock eq.eq_rhs.expr_clock) in |
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318 | defvars', {eq with eq_lhs = lhs' } |
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319 | |||

320 | 9c4624e4 | tkahsai | let rec normalize_eq node defvars eq = |

321 | 53206908 | xthirioux | (*Format.eprintf "normalize_eq %a@." Types.print_ty eq.eq_rhs.expr_type;*) |

322 | 0cbf0839 | ploc | match eq.eq_rhs.expr_desc with |

323 | | Expr_pre _ |
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324 | | Expr_fby _ -> |
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325 | let (defvars', eq') = decouple_outputs node defvars eq in |
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326 | let (defs', vars'), norm_rhs = normalize_expr ~alias:false node [] defvars' eq'.eq_rhs in |
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327 | let norm_eq = { eq' with eq_rhs = norm_rhs } in |
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328 | (norm_eq::defs', vars') |
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329 | | Expr_array _ -> |
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330 | let (defs', vars'), norm_rhs = normalize_array_expr ~alias:false node [] defvars eq.eq_rhs in |
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331 | let norm_eq = { eq with eq_rhs = norm_rhs } in |
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332 | (norm_eq::defs', vars') |
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333 | 53206908 | xthirioux | | Expr_appl (id, _, None) when Basic_library.is_homomorphic_fun id && Types.is_array_type eq.eq_rhs.expr_type -> |

334 | 0cbf0839 | ploc | let (defs', vars'), norm_rhs = normalize_array_expr ~alias:false node [] defvars eq.eq_rhs in |

335 | let norm_eq = { eq with eq_rhs = norm_rhs } in |
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336 | (norm_eq::defs', vars') |
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337 | | Expr_appl _ -> |
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338 | let (defs', vars'), norm_rhs = normalize_expr ~alias:false node [] defvars eq.eq_rhs in |
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339 | let norm_eq = { eq with eq_rhs = norm_rhs } in |
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340 | (norm_eq::defs', vars') |
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341 | | _ -> |
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342 | let (defs', vars'), norm_rhs = normalize_cond_expr ~alias:false node [] defvars eq.eq_rhs in |
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343 | let norm_eq = { eq with eq_rhs = norm_rhs } in |
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344 | norm_eq::defs', vars' |
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345 | |||

346 | 9c4624e4 | tkahsai | (** normalize_node node returns a normalized node, |

347 | ie. |
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348 | 36454535 | ploc | - updated locals |

349 | - new equations |
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350 | 9c4624e4 | tkahsai | - |

351 | 36454535 | ploc | *) |

352 | 9c4624e4 | tkahsai | let normalize_node node = |

353 | 0cbf0839 | ploc | cpt_fresh := 0; |

354 | let inputs_outputs = node.node_inputs@node.node_outputs in |
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355 | let is_local v = |
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356 | List.for_all ((!=) v) inputs_outputs in |
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357 | 36454535 | ploc | let orig_vars = inputs_outputs@node.node_locals in |

358 | 9c4624e4 | tkahsai | let defs, vars = |

359 | 1eda3e78 | xthirioux | List.fold_left (normalize_eq node) ([], orig_vars) (get_node_eqs node) in |

360 | 36454535 | ploc | (* Normalize the asserts *) |

361 | 9c4624e4 | tkahsai | let vars, assert_defs, asserts = |

362 | 36454535 | ploc | List.fold_left ( |

363 | fun (vars, def_accu, assert_accu) assert_ -> |
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364 | let assert_expr = assert_.assert_expr in |
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365 | 53206908 | xthirioux | let (defs, vars'), expr = |

366 | normalize_expr |
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367 | ~alias:false |
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368 | node |
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369 | 36454535 | ploc | [] (* empty offset for arrays *) |

370 | ([], vars) (* defvar only contains vars *) |
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371 | assert_expr |
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372 | in |
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373 | 9c4624e4 | tkahsai | (*Format.eprintf "New assert vars: %a@.@?" (fprintf_list ~sep:", " Printers.pp_var) vars';*) |

374 | 36454535 | ploc | vars', defs@def_accu, {assert_ with assert_expr = expr}::assert_accu |

375 | ) (vars, [], []) node.node_asserts in |
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376 | 0cbf0839 | ploc | let new_locals = List.filter is_local vars in |

377 | 9c4624e4 | tkahsai | (*Format.eprintf "New locals: %a@.@?" (fprintf_list ~sep:", " Printers.pp_var) new_locals;*) |

378 | e42fb618 | ploc | |

379 | c065827c | ploc | let new_annots = |

380 | 53206908 | xthirioux | if !Options.horntraces then |

381 | c065827c | ploc | begin |

382 | 9c4624e4 | tkahsai | (* Compute traceability info: |

383 | c065827c | ploc | - gather newly bound variables |

384 | 9c4624e4 | tkahsai | - compute the associated expression without aliases |

385 | c065827c | ploc | *) |

386 | let diff_vars = List.filter (fun v -> not (List.mem v node.node_locals) ) new_locals in |
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387 | let norm_traceability = { |
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388 | annots = List.map (fun v -> |
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389 | let eq = |
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390 | try |
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391 | 7a442071 | ploc | List.find (fun eq -> eq.eq_lhs = [v.var_id]) (defs@assert_defs) |

392 | c065827c | ploc | with Not_found -> (Format.eprintf "var not found %s@." v.var_id; assert false) in |

393 | 7a442071 | ploc | let expr = substitute_expr diff_vars (defs@assert_defs) eq.eq_rhs in |

394 | c065827c | ploc | let pair = mkeexpr expr.expr_loc (mkexpr expr.expr_loc (Expr_tuple [expr_of_ident v.var_id expr.expr_loc; expr])) in |

395 | (["traceability"], pair) |
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396 | ) diff_vars; |
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397 | annot_loc = Location.dummy_loc |
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398 | 9c4624e4 | tkahsai | } |

399 | c065827c | ploc | in |

400 | norm_traceability::node.node_annot |
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401 | end |
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402 | else |
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403 | node.node_annot |
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404 | 36454535 | ploc | in |

405 | c065827c | ploc | |

406 | 0cbf0839 | ploc | let node = |

407 | 9c4624e4 | tkahsai | { node with |

408 | node_locals = new_locals; |
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409 | 1eda3e78 | xthirioux | node_stmts = List.map (fun eq -> Eq eq) (defs @ assert_defs); |

410 | 36454535 | ploc | node_asserts = asserts; |

411 | c065827c | ploc | node_annot = new_annots; |

412 | 36454535 | ploc | } |

413 | 53206908 | xthirioux | in ((*Printers.pp_node Format.err_formatter node;*) node) |

414 | 0cbf0839 | ploc | |

415 | let normalize_decl decl = |
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416 | match decl.top_decl_desc with |
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417 | | Node nd -> |
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418 | e42fb618 | ploc | let decl' = {decl with top_decl_desc = Node (normalize_node nd)} in |

419 | Hashtbl.replace Corelang.node_table nd.node_id decl'; |
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420 | decl' |
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421 | 70e1006b | xthirioux | | Open _ | ImportedNode _ | Const _ | TypeDef _ -> decl |

422 | 9c4624e4 | tkahsai | |

423 | let normalize_prog decls = |
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424 | 0cbf0839 | ploc | List.map normalize_decl decls |

425 | |||

426 | (* Local Variables: *) |
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427 | (* compile-command:"make -C .." *) |
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428 | (* End: *) |