1 | open Preamble |
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2 | |
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3 | open Div_and_mod |
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4 | |
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5 | open Jmeq |
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6 | |
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7 | open Russell |
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8 | |
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9 | open Bool |
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10 | |
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11 | open Relations |
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12 | |
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13 | open Nat |
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14 | |
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15 | open Hints_declaration |
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16 | |
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17 | open Core_notation |
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18 | |
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19 | open Pts |
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20 | |
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21 | open Logic |
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22 | |
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23 | open Types |
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24 | |
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25 | open List |
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26 | |
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27 | open Util |
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28 | |
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29 | open Extra_bool |
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30 | |
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31 | open Coqlib |
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32 | |
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33 | open Values |
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34 | |
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35 | open FrontEndVal |
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36 | |
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37 | open GenMem |
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38 | |
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39 | open FrontEndMem |
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40 | |
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41 | open Globalenvs |
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42 | |
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43 | open String |
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44 | |
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45 | open Sets |
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46 | |
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47 | open Listb |
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48 | |
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49 | open LabelledObjects |
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50 | |
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51 | open BitVectorTrie |
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52 | |
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53 | open Graphs |
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54 | |
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55 | open I8051 |
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56 | |
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57 | open Order |
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58 | |
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59 | open Registers |
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60 | |
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61 | open CostLabel |
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62 | |
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63 | open Hide |
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64 | |
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65 | open Proper |
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66 | |
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67 | open PositiveMap |
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68 | |
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69 | open Deqsets |
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70 | |
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71 | open ErrorMessages |
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72 | |
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73 | open PreIdentifiers |
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74 | |
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75 | open Errors |
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76 | |
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77 | open Extralib |
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78 | |
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79 | open Lists |
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80 | |
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81 | open Identifiers |
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82 | |
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83 | open Integers |
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84 | |
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85 | open AST |
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86 | |
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87 | open Division |
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88 | |
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89 | open Exp |
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90 | |
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91 | open Arithmetic |
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92 | |
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93 | open Setoids |
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94 | |
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95 | open Monad |
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96 | |
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97 | open Option |
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98 | |
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99 | open Extranat |
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100 | |
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101 | open Vector |
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102 | |
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103 | open FoldStuff |
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104 | |
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105 | open BitVector |
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106 | |
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107 | open Positive |
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108 | |
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109 | open Z |
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110 | |
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111 | open BitVectorZ |
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112 | |
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113 | open Pointers |
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114 | |
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115 | open ByteValues |
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116 | |
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117 | open BackEndOps |
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118 | |
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119 | open Joint |
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120 | |
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121 | open ERTL |
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122 | |
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123 | open Set_adt |
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124 | |
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125 | open Fixpoints |
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126 | |
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127 | (** val rl_included : |
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128 | (PreIdentifiers.identifier Set_adt.set, I8051.register Set_adt.set) |
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129 | Types.prod -> (PreIdentifiers.identifier Set_adt.set, I8051.register |
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130 | Set_adt.set) Types.prod -> Bool.bool **) |
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131 | let rl_included left right = |
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132 | Bool.andb |
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133 | (Set_adt.set_subset |
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134 | (Identifiers.eq_identifier PreIdentifiers.RegisterTag) left.Types.fst |
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135 | right.Types.fst) |
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136 | (Set_adt.set_subset I8051.eq_Register left.Types.snd right.Types.snd) |
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137 | |
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138 | (** val register_lattice : Fixpoints.property_lattice **) |
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139 | let register_lattice = |
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140 | { Fixpoints.l_bottom = |
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141 | (Obj.magic { Types.fst = Set_adt.set_empty; Types.snd = |
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142 | Set_adt.set_empty }); Fixpoints.l_equal = (fun left right -> |
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143 | Bool.andb |
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144 | (Set_adt.set_equal |
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145 | (Identifiers.eq_identifier PreIdentifiers.RegisterTag) |
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146 | (Obj.magic left).Types.fst (Obj.magic right).Types.fst) |
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147 | (Set_adt.set_equal I8051.eq_Register (Obj.magic left).Types.snd |
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148 | (Obj.magic right).Types.snd)); Fixpoints.l_included = |
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149 | (Obj.magic rl_included); Fixpoints.l_is_maximal = (fun x -> Bool.False) } |
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150 | |
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151 | (** val rl_bottom : __ **) |
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152 | let rl_bottom = |
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153 | register_lattice.Fixpoints.l_bottom |
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154 | |
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155 | (** val rl_psingleton : Registers.register -> __ **) |
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156 | let rl_psingleton r = |
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157 | Obj.magic { Types.fst = (Set_adt.set_singleton r); Types.snd = |
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158 | Set_adt.set_empty } |
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159 | |
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160 | (** val rl_hsingleton : I8051.register -> __ **) |
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161 | let rl_hsingleton r = |
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162 | Obj.magic { Types.fst = Set_adt.set_empty; Types.snd = |
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163 | (Set_adt.set_singleton r) } |
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164 | |
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165 | (** val pairwise : |
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166 | ('a1 -> 'a1 -> 'a1) -> ('a2 -> 'a2 -> 'a2) -> ('a1, 'a2) Types.prod -> |
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167 | ('a1, 'a2) Types.prod -> ('a1, 'a2) Types.prod **) |
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168 | let pairwise f g c1 c2 = |
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169 | { Types.fst = (f c1.Types.fst c2.Types.fst); Types.snd = |
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170 | (g c1.Types.snd c2.Types.snd) } |
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171 | |
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172 | (** val rl_join : __ -> __ -> __ **) |
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173 | let rl_join = |
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174 | Obj.magic (pairwise Set_adt.set_union Set_adt.set_union) |
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175 | |
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176 | (** val rl_diff : __ -> __ -> __ **) |
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177 | let rl_diff = |
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178 | Obj.magic (pairwise Set_adt.set_diff Set_adt.set_diff) |
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179 | |
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180 | (** val defined : AST.ident List.list -> Joint.joint_statement -> __ **) |
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181 | let defined globals = function |
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182 | | Joint.Sequential (seq, l) -> |
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183 | (match seq with |
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184 | | Joint.COST_LABEL clabel -> rl_bottom |
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185 | | Joint.CALL (x, x0, x1) -> |
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186 | Obj.magic { Types.fst = Set_adt.set_empty; Types.snd = |
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187 | (Set_adt.set_from_list I8051.registerCallerSaved) } |
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188 | | Joint.COND (r, lbl_true) -> rl_bottom |
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189 | | Joint.Step_seq s0 -> |
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190 | (match s0 with |
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191 | | Joint.COMMENT c -> rl_bottom |
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192 | | Joint.MOVE pair_reg -> |
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193 | (match (Obj.magic pair_reg).Types.fst with |
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194 | | ERTL.PSD p -> rl_psingleton p |
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195 | | ERTL.HDW h -> rl_hsingleton h) |
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196 | | Joint.POP r -> rl_psingleton (Obj.magic r) |
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197 | | Joint.PUSH r -> rl_bottom |
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198 | | Joint.ADDRESS (x, x1, r1, r2) -> |
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199 | rl_join (rl_psingleton (Obj.magic r1)) (rl_psingleton (Obj.magic r2)) |
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200 | | Joint.OPACCS (opaccs, dr1, dr2, sr1, sr2) -> |
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201 | rl_join |
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202 | (rl_join (rl_psingleton (Obj.magic dr1)) |
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203 | (rl_psingleton (Obj.magic dr2))) |
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204 | (rl_hsingleton I8051.RegisterCarry) |
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205 | | Joint.OP1 (op1, r1, r2) -> rl_psingleton (Obj.magic r1) |
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206 | | Joint.OP2 (op2, r1, r2, x) -> |
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207 | (match op2 with |
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208 | | BackEndOps.Add -> |
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209 | rl_join (rl_hsingleton I8051.RegisterCarry) |
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210 | (rl_psingleton (Obj.magic r1)) |
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211 | | BackEndOps.Addc -> |
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212 | rl_join (rl_hsingleton I8051.RegisterCarry) |
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213 | (rl_psingleton (Obj.magic r1)) |
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214 | | BackEndOps.Sub -> |
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215 | rl_join (rl_hsingleton I8051.RegisterCarry) |
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216 | (rl_psingleton (Obj.magic r1)) |
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217 | | BackEndOps.And -> rl_psingleton (Obj.magic r1) |
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218 | | BackEndOps.Or -> rl_psingleton (Obj.magic r1) |
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219 | | BackEndOps.Xor -> rl_psingleton (Obj.magic r1)) |
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220 | | Joint.CLEAR_CARRY -> rl_hsingleton I8051.RegisterCarry |
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221 | | Joint.SET_CARRY -> rl_hsingleton I8051.RegisterCarry |
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222 | | Joint.LOAD (r, x, x0) -> rl_psingleton (Obj.magic r) |
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223 | | Joint.STORE (acc_a, dpl, dph) -> rl_bottom |
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224 | | Joint.Extension_seq ext -> |
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225 | (match Obj.magic ext with |
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226 | | ERTL.Ertl_new_frame -> |
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227 | rl_join (rl_hsingleton I8051.registerSPL) |
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228 | (rl_hsingleton I8051.registerSPH) |
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229 | | ERTL.Ertl_del_frame -> |
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230 | rl_join (rl_hsingleton I8051.registerSPL) |
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231 | (rl_hsingleton I8051.registerSPH) |
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232 | | ERTL.Ertl_frame_size r -> rl_psingleton r))) |
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233 | | Joint.Final x -> rl_bottom |
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234 | | Joint.FCOND (x, x0, x1) -> assert false (* absurd case *) |
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235 | |
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236 | (** val ret_regs : I8051.register Set_adt.set **) |
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237 | let ret_regs = |
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238 | Set_adt.set_from_list I8051.registerRets |
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239 | |
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240 | (** val rl_arg : Joint.psd_argument -> __ **) |
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241 | let rl_arg = function |
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242 | | Joint.Reg r -> rl_psingleton r |
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243 | | Joint.Imm x -> rl_bottom |
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244 | |
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245 | (** val used : |
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246 | AST.ident List.list -> Joint.joint_statement -> (Registers.register |
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247 | Set_adt.set, I8051.register Set_adt.set) Types.prod **) |
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248 | let used globals = function |
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249 | | Joint.Sequential (seq, l) -> |
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250 | (match seq with |
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251 | | Joint.COST_LABEL clabel -> Obj.magic rl_bottom |
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252 | | Joint.CALL (f, nparams, x) -> |
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253 | Obj.magic |
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254 | (rl_join |
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255 | (match f with |
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256 | | Types.Inl x0 -> rl_bottom |
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257 | | Types.Inr pr -> |
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258 | rl_join (rl_arg (Obj.magic pr).Types.fst) |
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259 | (rl_arg (Obj.magic pr).Types.snd)) |
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260 | (Obj.magic { Types.fst = Set_adt.set_empty; Types.snd = |
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261 | (Set_adt.set_from_list |
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262 | (Util.prefix (Obj.magic nparams) I8051.registerParams)) })) |
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263 | | Joint.COND (r, lbl_true) -> Obj.magic (rl_psingleton (Obj.magic r)) |
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264 | | Joint.Step_seq s0 -> |
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265 | (match s0 with |
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266 | | Joint.COMMENT x -> Obj.magic rl_bottom |
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267 | | Joint.MOVE pair_reg -> |
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268 | let r2 = (Obj.magic pair_reg).Types.snd in |
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269 | (match r2 with |
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270 | | Joint.Reg p -> |
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271 | (match p with |
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272 | | ERTL.PSD r -> Obj.magic (rl_psingleton r) |
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273 | | ERTL.HDW r -> Obj.magic (rl_hsingleton r)) |
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274 | | Joint.Imm x -> Obj.magic rl_bottom) |
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275 | | Joint.POP x -> Obj.magic rl_bottom |
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276 | | Joint.PUSH r -> Obj.magic (rl_arg (Obj.magic r)) |
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277 | | Joint.ADDRESS (x, x1, x2, x3) -> Obj.magic rl_bottom |
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278 | | Joint.OPACCS (opaccs, dr1, dr2, sr1, sr2) -> |
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279 | Obj.magic (rl_join (rl_arg (Obj.magic sr1)) (rl_arg (Obj.magic sr2))) |
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280 | | Joint.OP1 (op1, r1, r2) -> Obj.magic (rl_psingleton (Obj.magic r2)) |
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281 | | Joint.OP2 (op2, acc_a, r1, r2) -> |
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282 | Obj.magic |
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283 | (rl_join (rl_join (rl_arg (Obj.magic r1)) (rl_arg (Obj.magic r2))) |
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284 | (match op2 with |
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285 | | BackEndOps.Add -> rl_bottom |
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286 | | BackEndOps.Addc -> rl_hsingleton I8051.RegisterCarry |
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287 | | BackEndOps.Sub -> rl_hsingleton I8051.RegisterCarry |
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288 | | BackEndOps.And -> rl_bottom |
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289 | | BackEndOps.Or -> rl_bottom |
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290 | | BackEndOps.Xor -> rl_bottom)) |
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291 | | Joint.CLEAR_CARRY -> Obj.magic rl_bottom |
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292 | | Joint.SET_CARRY -> Obj.magic rl_bottom |
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293 | | Joint.LOAD (acc_a, dpl, dph) -> |
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294 | Obj.magic (rl_join (rl_arg (Obj.magic dpl)) (rl_arg (Obj.magic dph))) |
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295 | | Joint.STORE (acc_a, dpl, dph) -> |
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296 | Obj.magic |
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297 | (rl_join |
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298 | (rl_join (rl_arg (Obj.magic acc_a)) (rl_arg (Obj.magic dpl))) |
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299 | (rl_arg (Obj.magic dph))) |
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300 | | Joint.Extension_seq ext -> |
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301 | (match Obj.magic ext with |
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302 | | ERTL.Ertl_new_frame -> |
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303 | Obj.magic |
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304 | (rl_join (rl_hsingleton I8051.registerSPL) |
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305 | (rl_hsingleton I8051.registerSPH)) |
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306 | | ERTL.Ertl_del_frame -> |
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307 | Obj.magic |
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308 | (rl_join (rl_hsingleton I8051.registerSPL) |
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309 | (rl_hsingleton I8051.registerSPH)) |
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310 | | ERTL.Ertl_frame_size r -> Obj.magic rl_bottom))) |
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311 | | Joint.Final fin -> |
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312 | (match fin with |
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313 | | Joint.GOTO l -> Obj.magic rl_bottom |
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314 | | Joint.RETURN -> |
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315 | { Types.fst = Set_adt.set_empty; Types.snd = |
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316 | (Set_adt.set_union (Set_adt.set_from_list I8051.registerCalleeSaved) |
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317 | ret_regs) } |
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318 | | Joint.TAILCALL (x, x0) -> assert false (* absurd case *)) |
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319 | | Joint.FCOND (x, x0, x1) -> assert false (* absurd case *) |
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320 | |
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321 | (** val eliminable_step : |
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322 | AST.ident List.list -> __ -> Joint.joint_step -> Bool.bool **) |
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323 | let eliminable_step globals l s = |
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324 | let pliveafter = (Obj.magic l).Types.fst in |
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325 | let hliveafter = (Obj.magic l).Types.snd in |
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326 | (match s with |
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327 | | Joint.COST_LABEL x -> Bool.False |
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328 | | Joint.CALL (x, x0, x1) -> Bool.False |
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329 | | Joint.COND (x, x0) -> Bool.False |
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330 | | Joint.Step_seq s0 -> |
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331 | (match s0 with |
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332 | | Joint.COMMENT x -> Bool.False |
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333 | | Joint.MOVE pair_reg -> |
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334 | Bool.notb |
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335 | (match (Obj.magic pair_reg).Types.fst with |
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336 | | ERTL.PSD p1 -> |
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337 | Set_adt.set_member |
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338 | (Identifiers.eq_identifier PreIdentifiers.RegisterTag) p1 |
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339 | pliveafter |
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340 | | ERTL.HDW h1 -> |
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341 | Set_adt.set_member I8051.eq_Register h1 hliveafter) |
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342 | | Joint.POP x -> Bool.False |
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343 | | Joint.PUSH x -> Bool.False |
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344 | | Joint.ADDRESS (x, x1, r1, r2) -> |
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345 | Bool.notb |
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346 | (Bool.orb |
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347 | (Set_adt.set_member |
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348 | (Identifiers.eq_identifier PreIdentifiers.RegisterTag) |
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349 | (Obj.magic r1) pliveafter) |
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350 | (Set_adt.set_member |
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351 | (Identifiers.eq_identifier PreIdentifiers.RegisterTag) |
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352 | (Obj.magic r2) pliveafter)) |
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353 | | Joint.OPACCS (opaccs, dr1, dr2, sr1, sr2) -> |
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354 | Bool.notb |
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355 | (Bool.orb |
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356 | (Bool.orb |
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357 | (Set_adt.set_member |
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358 | (Identifiers.eq_identifier PreIdentifiers.RegisterTag) |
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359 | (Obj.magic dr1) pliveafter) |
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360 | (Set_adt.set_member |
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361 | (Identifiers.eq_identifier PreIdentifiers.RegisterTag) |
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362 | (Obj.magic dr2) pliveafter)) |
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363 | (Set_adt.set_member I8051.eq_Register I8051.RegisterCarry |
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364 | hliveafter)) |
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365 | | Joint.OP1 (op1, r1, r2) -> |
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366 | Bool.notb |
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367 | (Set_adt.set_member |
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368 | (Identifiers.eq_identifier PreIdentifiers.RegisterTag) |
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369 | (Obj.magic r1) pliveafter) |
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370 | | Joint.OP2 (op2, r1, r2, r3) -> |
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371 | Bool.notb |
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372 | (Bool.orb |
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373 | (match op2 with |
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374 | | BackEndOps.Add -> |
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375 | Set_adt.set_member I8051.eq_Register I8051.RegisterCarry |
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376 | hliveafter |
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377 | | BackEndOps.Addc -> |
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378 | Set_adt.set_member I8051.eq_Register I8051.RegisterCarry |
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379 | hliveafter |
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380 | | BackEndOps.Sub -> |
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381 | Set_adt.set_member I8051.eq_Register I8051.RegisterCarry |
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382 | hliveafter |
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383 | | BackEndOps.And -> Bool.False |
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384 | | BackEndOps.Or -> Bool.False |
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385 | | BackEndOps.Xor -> Bool.False) |
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386 | (Set_adt.set_member |
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387 | (Identifiers.eq_identifier PreIdentifiers.RegisterTag) |
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388 | (Obj.magic r1) pliveafter)) |
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389 | | Joint.CLEAR_CARRY -> Bool.False |
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390 | | Joint.SET_CARRY -> Bool.False |
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391 | | Joint.LOAD (acc_a, dpl, dph) -> |
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392 | Bool.notb |
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393 | (Set_adt.set_member |
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394 | (Identifiers.eq_identifier PreIdentifiers.RegisterTag) |
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395 | (Obj.magic acc_a) pliveafter) |
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396 | | Joint.STORE (x, x0, x1) -> Bool.False |
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397 | | Joint.Extension_seq ext -> |
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398 | (match Obj.magic ext with |
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399 | | ERTL.Ertl_new_frame -> Bool.False |
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400 | | ERTL.Ertl_del_frame -> Bool.False |
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401 | | ERTL.Ertl_frame_size r -> |
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402 | Bool.notb |
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403 | (Set_adt.set_member |
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404 | (Identifiers.eq_identifier PreIdentifiers.RegisterTag) r |
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405 | pliveafter)))) |
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406 | |
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407 | (** val eliminable : |
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408 | AST.ident List.list -> __ -> Joint.joint_statement -> Bool.bool **) |
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409 | let eliminable globals l s = |
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410 | let pliveafter = (Obj.magic l).Types.fst in |
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411 | let hliveafter = (Obj.magic l).Types.snd in |
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412 | (match s with |
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413 | | Joint.Sequential (seq, x) -> eliminable_step globals l seq |
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414 | | Joint.Final x -> Bool.False |
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415 | | Joint.FCOND (x0, x1, x2) -> Bool.False) |
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416 | |
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417 | (** val statement_semantics : |
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418 | AST.ident List.list -> Joint.joint_statement -> __ -> __ **) |
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419 | let statement_semantics globals stmt liveafter = |
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420 | match eliminable globals liveafter stmt with |
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421 | | Bool.True -> liveafter |
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422 | | Bool.False -> |
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423 | rl_join (rl_diff liveafter (defined globals stmt)) |
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424 | (Obj.magic (used globals stmt)) |
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425 | |
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426 | (** val livebefore : |
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427 | AST.ident List.list -> Joint.joint_internal_function -> |
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428 | Fixpoints.valuation -> Fixpoints.valuation **) |
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429 | let livebefore globals int_fun liveafter label = |
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430 | match Identifiers.lookup PreIdentifiers.LabelTag |
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431 | (Obj.magic int_fun.Joint.joint_if_code) label with |
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432 | | Types.None -> rl_bottom |
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433 | | Types.Some stmt -> statement_semantics globals stmt (liveafter label) |
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434 | |
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435 | (** val liveafter : |
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436 | AST.ident List.list -> Joint.joint_internal_function -> |
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437 | PreIdentifiers.identifier -> Fixpoints.valuation -> __ **) |
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438 | let liveafter globals int_fun label liveafter0 = |
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439 | match Identifiers.lookup PreIdentifiers.LabelTag |
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440 | (Obj.magic int_fun.Joint.joint_if_code) label with |
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441 | | Types.None -> rl_bottom |
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442 | | Types.Some stmt -> |
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443 | List.fold rl_join rl_bottom (fun successor -> Bool.True) |
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444 | (fun successor -> livebefore globals int_fun liveafter0 successor) |
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445 | (Joint.stmt_labels { Joint.uns_pars = (Joint.g_u_pars ERTL.eRTL); |
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446 | Joint.succ_label = (Obj.magic (fun x -> Types.Some x)); |
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447 | Joint.has_fcond = Bool.False } globals stmt) |
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448 | |
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449 | (** val analyse_liveness : |
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450 | Fixpoints.fixpoint_computer -> AST.ident List.list -> |
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451 | Joint.joint_internal_function -> Fixpoints.fixpoint **) |
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452 | let analyse_liveness the_fixpoint globals int_fun = |
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453 | the_fixpoint register_lattice (liveafter globals int_fun) |
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454 | |
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455 | type vertex = (Registers.register, I8051.register) Types.sum |
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456 | |
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457 | (** val plives : Registers.register -> __ -> Bool.bool **) |
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458 | let plives vertex0 prop = |
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459 | Set_adt.set_member (Identifiers.eq_identifier PreIdentifiers.RegisterTag) |
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460 | vertex0 (Obj.magic prop).Types.fst |
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461 | |
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462 | (** val hlives : I8051.register -> __ -> Bool.bool **) |
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463 | let hlives vertex0 prop = |
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464 | Set_adt.set_member I8051.eq_Register vertex0 (Obj.magic prop).Types.snd |
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465 | |
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466 | (** val lives : vertex -> __ -> Bool.bool **) |
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467 | let lives = function |
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468 | | Types.Inl v -> plives v |
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469 | | Types.Inr v -> hlives v |
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470 | |
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