1 | /**CFile*********************************************************************** |
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2 | |
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3 | FileName [absCatalog.c] |
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4 | |
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5 | PackageName [abs] |
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6 | |
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7 | Synopsis [Functions to handle a catalog of sub-formulas to detect |
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8 | common sub-expressions] |
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9 | |
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10 | Author [Abelardo Pardo <abel@vlsi.colorado.edu>] |
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11 | |
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12 | Copyright [This file was created at the University of Colorado at |
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13 | Boulder. The University of Colorado at Boulder makes no warranty |
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14 | about the suitability of this software for any purpose. It is |
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15 | presented on an AS IS basis.] |
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16 | |
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17 | ******************************************************************************/ |
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18 | |
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19 | #include "absInt.h" |
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20 | |
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21 | static char rcsid[] UNUSED = "$Id: absCatalog.c,v 1.8 2005/04/16 04:22:21 fabio Exp $"; |
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22 | |
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23 | |
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24 | /*---------------------------------------------------------------------------*/ |
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25 | /* Structure declarations */ |
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26 | /*---------------------------------------------------------------------------*/ |
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27 | |
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28 | /**Struct********************************************************************** |
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29 | |
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30 | Synopsis [A struct to keep list of subformulas to detect common |
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31 | subexpressions] |
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32 | |
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33 | SeeAlso [AbsVerificationInfo] |
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34 | |
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35 | ******************************************************************************/ |
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36 | |
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37 | struct AbsVertexCatalog { |
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38 | lsList fixedPoints; |
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39 | lsList booleanOps; |
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40 | lsList negations; |
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41 | lsList preImages; |
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42 | lsList identifiers; |
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43 | lsList variables; |
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44 | }; |
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45 | |
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46 | /*---------------------------------------------------------------------------*/ |
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47 | /* Macro declarations */ |
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48 | /*---------------------------------------------------------------------------*/ |
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49 | |
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50 | /**Macro*********************************************************************** |
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51 | |
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52 | Synopsis [Macro to read the fixedPoints field from a AbsVertexCatalog_t |
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53 | structure] |
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54 | |
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55 | SideEffects [] |
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56 | |
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57 | SeeAlso [AbsVertexCatalog] |
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58 | |
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59 | ******************************************************************************/ |
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60 | #define AbsVertexCatalogReadFixedPoints(\ |
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61 | /* AbsVertexCatalog_t * */ cPtr \ |
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62 | ) \ |
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63 | (cPtr->fixedPoints) |
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64 | |
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65 | /**Macro*********************************************************************** |
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66 | |
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67 | Synopsis [Macro to read the booleanOps field from a AbsVertexCatalog_t |
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68 | structure] |
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69 | |
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70 | SideEffects [] |
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71 | |
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72 | SeeAlso [AbsVertexCatalog] |
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73 | |
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74 | ******************************************************************************/ |
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75 | #define AbsVertexCatalogReadBooleanOps(\ |
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76 | /* AbsVertexCatalog_t * */ cPtr \ |
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77 | ) \ |
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78 | (cPtr->booleanOps) |
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79 | |
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80 | /**Macro*********************************************************************** |
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81 | |
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82 | Synopsis [Macro to read the negations field from a AbsVertexCatalog_t |
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83 | structure] |
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84 | |
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85 | SideEffects [] |
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86 | |
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87 | SeeAlso [AbsVertexCatalog] |
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88 | |
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89 | ******************************************************************************/ |
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90 | #define AbsVertexCatalogReadNegations(\ |
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91 | /* AbsVertexCatalog_t * */ cPtr \ |
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92 | ) \ |
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93 | (cPtr->negations) |
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94 | |
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95 | /**Macro*********************************************************************** |
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96 | |
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97 | Synopsis [Macro to read the preImages field from a AbsVertexCatalog_t |
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98 | structure] |
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99 | |
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100 | SideEffects [] |
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101 | |
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102 | SeeAlso [AbsVertexCatalog] |
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103 | |
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104 | ******************************************************************************/ |
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105 | #define AbsVertexCatalogReadPreImages(\ |
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106 | /* AbsVertexCatalog_t * */ cPtr \ |
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107 | ) \ |
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108 | (cPtr->preImages) |
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109 | |
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110 | /**Macro*********************************************************************** |
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111 | |
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112 | Synopsis [Macro to read the identifiers field from a AbsVertexCatalog_t |
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113 | structure] |
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114 | |
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115 | SideEffects [] |
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116 | |
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117 | SeeAlso [AbsVertexCatalog] |
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118 | |
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119 | ******************************************************************************/ |
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120 | #define AbsVertexCatalogReadIdentifiers(\ |
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121 | /* AbsVertexCatalog_t * */ cPtr \ |
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122 | ) \ |
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123 | (cPtr->identifiers) |
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124 | |
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125 | /**Macro*********************************************************************** |
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126 | |
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127 | Synopsis [Macro to read the variables field from a AbsVertexCatalog_t |
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128 | structure] |
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129 | |
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130 | SideEffects [] |
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131 | |
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132 | SeeAlso [AbsVertexCatalog] |
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133 | |
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134 | ******************************************************************************/ |
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135 | #define AbsVertexCatalogReadVariables(\ |
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136 | /* AbsVertexCatalog_t * */ cPtr \ |
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137 | ) \ |
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138 | (cPtr->variables) |
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139 | |
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140 | /**Macro*********************************************************************** |
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141 | |
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142 | Synopsis [Macro to set the fixedPoints field from a AbsVertexCatalog_t |
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143 | structure] |
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144 | |
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145 | SideEffects [] |
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146 | |
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147 | SeeAlso [AbsVertexCatalog] |
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148 | |
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149 | ******************************************************************************/ |
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150 | #define AbsVertexCatalogSetFixedPoints(\ |
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151 | /* AbsVertexCatalog_t * */ cPtr, \ |
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152 | /* lsList */ data \ |
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153 | ) \ |
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154 | (cPtr->fixedPoints) = (data) |
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155 | |
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156 | /**Macro*********************************************************************** |
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157 | |
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158 | Synopsis [Macro to set the booleanOps field from a AbsVertexCatalog_t |
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159 | structure] |
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160 | |
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161 | SideEffects [] |
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162 | |
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163 | SeeAlso [AbsVertexCatalog] |
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164 | |
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165 | ******************************************************************************/ |
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166 | #define AbsVertexCatalogSetBooleanOps(\ |
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167 | /* AbsVertexCatalog_t * */ cPtr, \ |
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168 | /* lsList */ data \ |
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169 | ) \ |
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170 | (cPtr->booleanOps) = (data) |
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171 | |
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172 | /**Macro*********************************************************************** |
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173 | |
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174 | Synopsis [Macro to set the negations field from a AbsVertexCatalog_t |
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175 | structure] |
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176 | |
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177 | SideEffects [AbsVertexCatalog] |
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178 | |
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179 | SeeAlso [] |
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180 | |
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181 | ******************************************************************************/ |
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182 | #define AbsVertexCatalogSetNegations(\ |
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183 | /* AbsVertexCatalog_t * */ cPtr, \ |
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184 | /* lsList */ data \ |
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185 | ) \ |
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186 | (cPtr->negations) = (data) |
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187 | |
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188 | /**Macro*********************************************************************** |
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189 | |
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190 | Synopsis [Macro to set the preImages field from a AbsVertexCatalog_t |
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191 | structure] |
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192 | |
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193 | SideEffects [] |
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194 | |
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195 | SeeAlso [AbsVertexCatalog] |
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196 | |
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197 | ******************************************************************************/ |
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198 | #define AbsVertexCatalogSetPreImages(\ |
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199 | /* AbsVertexCatalog_t * */ cPtr, \ |
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200 | /* lsList */ data \ |
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201 | ) \ |
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202 | (cPtr->preImages) = (data) |
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203 | |
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204 | /**Macro*********************************************************************** |
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205 | |
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206 | Synopsis [Macro to set the identifiers field from a AbsVertexCatalog_t |
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207 | structure] |
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208 | |
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209 | SideEffects [] |
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210 | |
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211 | SeeAlso [AbsVertexCatalog] |
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212 | |
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213 | ******************************************************************************/ |
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214 | #define AbsVertexCatalogSetIdentifiers(\ |
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215 | /* AbsVertexCatalog_t * */ cPtr, \ |
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216 | /* lsList */ data \ |
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217 | ) \ |
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218 | (cPtr->identifiers) = (data) |
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219 | |
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220 | /**Macro*********************************************************************** |
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221 | |
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222 | Synopsis [Macro to set the variables field from a AbsVertexCatalog_t |
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223 | structure] |
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224 | |
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225 | SideEffects [] |
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226 | |
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227 | SeeAlso [AbsVertexCatalog] |
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228 | |
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229 | ******************************************************************************/ |
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230 | #define AbsVertexCatalogSetVariables(\ |
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231 | /* AbsVertexCatalog_t * */ cPtr, \ |
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232 | /* lsList */ data \ |
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233 | ) \ |
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234 | (cPtr->variables) = (data) |
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235 | |
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236 | /**AutomaticStart*************************************************************/ |
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237 | |
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238 | /*---------------------------------------------------------------------------*/ |
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239 | /* Static function prototypes */ |
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240 | /*---------------------------------------------------------------------------*/ |
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241 | |
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242 | static AbsVertexInfo_t * LookUpBooleanOp(lsList vertexList, AbsVertex_t type, boolean polarity, AbsVertexInfo_t *leftKid, AbsVertexInfo_t *rightKid); |
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243 | static AbsVertexInfo_t * LookUpFixedPoint(lsList vertexList, boolean polarity, AbsVertexInfo_t *leftKid, int localId); |
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244 | static AbsVertexInfo_t * LookUpIdentifier(lsList vertexList, boolean polarity, char *name, char *value); |
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245 | static AbsVertexInfo_t * LookUpPreImage(lsList vertexList, boolean polarity, AbsVertexInfo_t *leftKid); |
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246 | static AbsVertexInfo_t * LookUpVariable(lsList vertexList, boolean polarity, int localId); |
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247 | |
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248 | /**AutomaticEnd***************************************************************/ |
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249 | |
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250 | |
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251 | /*---------------------------------------------------------------------------*/ |
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252 | /* Definition of exported functions */ |
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253 | /*---------------------------------------------------------------------------*/ |
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254 | |
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255 | /*---------------------------------------------------------------------------*/ |
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256 | /* Definition of internal functions */ |
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257 | /*---------------------------------------------------------------------------*/ |
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258 | |
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259 | /**Function******************************************************************** |
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260 | |
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261 | Synopsis [Allocate the structure to store the catalog of vertices] |
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262 | |
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263 | SideEffects [] |
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264 | |
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265 | SeeAlso [AbsVertexCatalog] |
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266 | |
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267 | ******************************************************************************/ |
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268 | AbsVertexCatalog_t * |
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269 | AbsVertexCatalogInitialize(void) |
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270 | { |
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271 | AbsVertexCatalog_t *result; |
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272 | |
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273 | result = ALLOC(AbsVertexCatalog_t, 1); |
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274 | |
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275 | AbsVertexCatalogSetFixedPoints(result, lsCreate()); |
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276 | AbsVertexCatalogSetBooleanOps(result, lsCreate()); |
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277 | AbsVertexCatalogSetNegations(result, lsCreate()); |
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278 | AbsVertexCatalogSetPreImages(result, lsCreate()); |
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279 | AbsVertexCatalogSetIdentifiers(result, lsCreate()); |
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280 | AbsVertexCatalogSetVariables(result, lsCreate()); |
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281 | |
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282 | return result; |
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283 | } /* End of AbsVertexCatalogInitialize */ |
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284 | |
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285 | /**Function******************************************************************** |
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286 | |
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287 | Synopsis [Deallocate the structure storing the catalog vertices] |
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288 | |
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289 | SideEffects [] |
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290 | |
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291 | SeeAlso [AbsVertexCatalog] |
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292 | |
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293 | ******************************************************************************/ |
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294 | void |
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295 | AbsVertexCatalogFree( |
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296 | AbsVertexCatalog_t *c) |
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297 | { |
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298 | lsDestroy(AbsVertexCatalogReadFixedPoints(c), (void (*)(lsGeneric))0); |
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299 | lsDestroy(AbsVertexCatalogReadBooleanOps(c), (void (*)(lsGeneric))0); |
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300 | lsDestroy(AbsVertexCatalogReadNegations(c), (void (*)(lsGeneric))0); |
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301 | lsDestroy(AbsVertexCatalogReadPreImages(c), (void (*)(lsGeneric))0); |
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302 | lsDestroy(AbsVertexCatalogReadIdentifiers(c), (void (*)(lsGeneric))0); |
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303 | lsDestroy(AbsVertexCatalogReadVariables(c), (void (*)(lsGeneric))0); |
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304 | |
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305 | FREE(c); |
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306 | |
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307 | return; |
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308 | } /* End of AbsVertexCatalogFree */ |
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309 | |
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310 | /**Function******************************************************************** |
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311 | |
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312 | Synopsis [Find or create the vertex with the given sub-formula in the vertex |
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313 | catalog] |
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314 | |
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315 | SideEffects [] |
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316 | |
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317 | SeeAlso [AbsVertexCatalog] |
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318 | |
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319 | ******************************************************************************/ |
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320 | AbsVertexInfo_t * |
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321 | AbsVertexCatalogFindOrAdd( |
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322 | AbsVertexCatalog_t *catalog, |
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323 | AbsVertex_t type, |
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324 | boolean polarity, |
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325 | AbsVertexInfo_t *leftKid, |
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326 | AbsVertexInfo_t *rightKid, |
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327 | int localId, |
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328 | char *idName, |
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329 | char *idValue |
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330 | ) |
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331 | { |
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332 | if (type == fixedPoint_c) { |
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333 | return LookUpFixedPoint(AbsVertexCatalogReadFixedPoints(catalog), |
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334 | polarity, leftKid, localId); |
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335 | } |
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336 | |
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337 | if (type == and_c || type == xor_c || type == xnor_c) { |
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338 | return LookUpBooleanOp(AbsVertexCatalogReadBooleanOps(catalog), |
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339 | type, polarity, leftKid, rightKid); |
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340 | } |
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341 | |
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342 | if (type == not_c) { |
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343 | return LookUpPreImage(AbsVertexCatalogReadNegations(catalog), |
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344 | polarity, leftKid); |
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345 | } |
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346 | |
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347 | if (type == preImage_c) { |
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348 | return LookUpPreImage(AbsVertexCatalogReadPreImages(catalog), |
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349 | polarity, leftKid); |
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350 | } |
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351 | |
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352 | if (type == identifier_c) { |
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353 | return LookUpIdentifier(AbsVertexCatalogReadIdentifiers(catalog), |
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354 | polarity, idName, idValue); |
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355 | } |
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356 | |
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357 | if (type == variable_c) { |
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358 | return LookUpVariable(AbsVertexCatalogReadVariables(catalog), |
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359 | polarity, localId); |
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360 | } |
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361 | |
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362 | (void) fprintf(vis_stderr, "** abs error: Unknown vertex type in function "); |
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363 | (void) fprintf(vis_stderr, "AbsVertexCatalogFindOrAdd.\n"); |
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364 | |
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365 | return NIL(AbsVertexInfo_t); |
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366 | |
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367 | } /* End of AbsVertexCatalogFindOrAdd */ |
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368 | |
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369 | /**Function******************************************************************** |
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370 | |
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371 | Synopsis [Delete a vertex from the catalog] |
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372 | |
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373 | SideEffects [] |
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374 | |
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375 | SeeAlso [AbsVertexFree] |
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376 | |
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377 | ******************************************************************************/ |
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378 | void |
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379 | AbsCatalogDelete( |
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380 | AbsVertexCatalog_t *catalog, |
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381 | AbsVertexInfo_t *vertex) |
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382 | { |
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383 | AbsVertex_t type; |
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384 | AbsVertexInfo_t *result; |
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385 | lsList vertexList; |
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386 | lsGen listGen; |
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387 | lsHandle item; |
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388 | lsGeneric userData; |
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389 | |
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390 | vertexList = 0; |
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391 | type = AbsVertexReadType(vertex); |
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392 | |
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393 | /* Select the proper list from the catalog */ |
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394 | if (type == fixedPoint_c) { |
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395 | vertexList = AbsVertexCatalogReadFixedPoints(catalog); |
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396 | } |
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397 | |
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398 | if (type == and_c || type == xor_c || type == xnor_c) { |
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399 | vertexList = AbsVertexCatalogReadBooleanOps(catalog); |
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400 | } |
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401 | |
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402 | if (type == not_c) { |
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403 | vertexList = AbsVertexCatalogReadNegations(catalog); |
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404 | } |
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405 | |
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406 | if (type == preImage_c) { |
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407 | vertexList = AbsVertexCatalogReadPreImages(catalog); |
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408 | } |
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409 | |
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410 | if (type == identifier_c) { |
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411 | vertexList = AbsVertexCatalogReadIdentifiers(catalog); |
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412 | } |
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413 | |
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414 | if (type == variable_c) { |
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415 | vertexList = AbsVertexCatalogReadVariables(catalog); |
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416 | } |
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417 | |
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418 | listGen = lsStart(vertexList); |
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419 | while(lsNext(listGen, &result, &item) == LS_OK) { |
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420 | if (result == vertex) { |
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421 | lsRemoveItem(item, &userData); |
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422 | assert(vertex == (AbsVertexInfo_t *)userData); |
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423 | lsFinish(listGen); |
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424 | return; |
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425 | } |
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426 | } |
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427 | |
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428 | (void) fprintf(vis_stderr, "** abs error: Removing non-existent vertex from"); |
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429 | (void) fprintf(vis_stderr, " catalog\n"); |
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430 | |
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431 | return; |
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432 | } /* End of AbsCatalogDelete */ |
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433 | |
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434 | /*---------------------------------------------------------------------------*/ |
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435 | /* Definition of static functions */ |
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436 | /*---------------------------------------------------------------------------*/ |
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437 | |
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438 | /**Function******************************************************************** |
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439 | |
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440 | Synopsis [Find or add a vertex to the list of boolean ops] |
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441 | |
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442 | SideEffects [] |
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443 | |
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444 | SeeAlso [AbsVertexCatalogFindOrAdd] |
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445 | |
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446 | ******************************************************************************/ |
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447 | static AbsVertexInfo_t * |
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448 | LookUpBooleanOp( |
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449 | lsList vertexList, |
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450 | AbsVertex_t type, |
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451 | boolean polarity, |
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452 | AbsVertexInfo_t *leftKid, |
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453 | AbsVertexInfo_t *rightKid) |
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454 | { |
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455 | lsGen listGen; |
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456 | AbsVertexInfo_t *result; |
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457 | |
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458 | /* Start the generator and traverse the list */ |
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459 | listGen = lsStart(vertexList); |
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460 | while(lsNext(listGen, &result, NIL(lsHandle)) == LS_OK) { |
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461 | if (AbsVertexReadType(result) == type && |
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462 | AbsVertexReadLeftKid(result) == leftKid && |
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463 | AbsVertexReadRightKid(result) == rightKid && |
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464 | AbsVertexReadPolarity(result) == polarity) { |
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465 | AbsVertexReadRefs(result)++; |
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466 | lsFinish(listGen); |
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467 | return result; |
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468 | } |
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469 | } |
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470 | |
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471 | /* Item has not been found */ |
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472 | lsFinish(listGen); |
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473 | result = AbsVertexInitialize(); |
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474 | lsNewBegin(vertexList, (lsGeneric)result, NIL(lsHandle)); |
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475 | |
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476 | return result; |
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477 | } /* End of LookUpBooleanOp */ |
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478 | |
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479 | /**Function******************************************************************** |
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480 | |
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481 | Synopsis [Find or add a vertex to the list of fixedpoints] |
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482 | |
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483 | SideEffects [] |
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484 | |
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485 | SeeAlso [AbsVertexCatalogFindOrAdd] |
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486 | |
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487 | ******************************************************************************/ |
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488 | static AbsVertexInfo_t * |
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489 | LookUpFixedPoint( |
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490 | lsList vertexList, |
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491 | boolean polarity, |
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492 | AbsVertexInfo_t *leftKid, |
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493 | int localId) |
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494 | { |
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495 | lsGen listGen; |
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496 | AbsVertexInfo_t *result; |
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497 | |
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498 | /* Start the generator and traverse the list */ |
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499 | listGen = lsStart(vertexList); |
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500 | while(lsNext(listGen, &result, NIL(lsHandle)) == LS_OK) { |
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501 | if (AbsVertexReadLeftKid(result) == leftKid && |
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502 | AbsVertexReadPolarity(result) == polarity && |
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503 | AbsVertexReadVarId(AbsVertexReadFpVar(result)) == localId) { |
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504 | AbsVertexReadRefs(result)++; |
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505 | lsFinish(listGen); |
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506 | return result; |
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507 | } |
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508 | } |
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509 | |
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510 | /* Item has not been found */ |
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511 | lsFinish(listGen); |
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512 | result = AbsVertexInitialize(); |
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513 | lsNewBegin(vertexList, (lsGeneric)result, NIL(lsHandle)); |
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514 | |
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515 | return result; |
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516 | } /* End of LookUpFixedPoint */ |
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517 | |
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518 | /**Function******************************************************************** |
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519 | |
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520 | Synopsis [Find or add a vertex to the list of identifiers] |
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521 | |
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522 | SideEffects [] |
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523 | |
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524 | SeeAlso [AbsVertexCatalogFindOrAdd] |
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525 | |
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526 | ******************************************************************************/ |
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527 | static AbsVertexInfo_t * |
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528 | LookUpIdentifier( |
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529 | lsList vertexList, |
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530 | boolean polarity, |
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531 | char *name, |
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532 | char *value) |
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533 | { |
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534 | lsGen listGen; |
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535 | AbsVertexInfo_t *result; |
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536 | |
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537 | /* Start the generator and traverse the list */ |
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538 | listGen = lsStart(vertexList); |
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539 | while(lsNext(listGen, &result, NIL(lsHandle)) == LS_OK) { |
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540 | if (AbsVertexReadPolarity(result) == polarity && |
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541 | strcmp(AbsVertexReadName(result), name) == 0 && |
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542 | strcmp(AbsVertexReadValue(result), value) == 0) { |
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543 | AbsVertexReadRefs(result)++; |
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544 | lsFinish(listGen); |
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545 | return result; |
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546 | } |
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547 | } |
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548 | |
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549 | /* Item has not been found */ |
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550 | lsFinish(listGen); |
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551 | result = AbsVertexInitialize(); |
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552 | lsNewBegin(vertexList, (lsGeneric)result, NIL(lsHandle)); |
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553 | |
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554 | return result; |
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555 | } /* End of LookUpIdentifier */ |
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556 | |
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557 | /**Function******************************************************************** |
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558 | |
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559 | Synopsis [Find or add a vertex to the list of preimages] |
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560 | |
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561 | SideEffects [] |
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562 | |
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563 | SeeAlso [AbsVertexCatalogFindOrAdd] |
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564 | |
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565 | ******************************************************************************/ |
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566 | static AbsVertexInfo_t * |
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567 | LookUpPreImage( |
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568 | lsList vertexList, |
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569 | boolean polarity, |
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570 | AbsVertexInfo_t *leftKid) |
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571 | { |
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572 | lsGen listGen; |
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573 | AbsVertexInfo_t *result; |
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574 | |
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575 | /* Start the generator and traverse the list */ |
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576 | listGen = lsStart(vertexList); |
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577 | while(lsNext(listGen, &result, NIL(lsHandle)) == LS_OK) { |
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578 | if (AbsVertexReadLeftKid(result) == leftKid && |
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579 | AbsVertexReadPolarity(result) == polarity) { |
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580 | AbsVertexReadRefs(result)++; |
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581 | lsFinish(listGen); |
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582 | return result; |
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583 | } |
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584 | } |
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585 | |
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586 | /* Item has not been found */ |
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587 | lsFinish(listGen); |
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588 | result = AbsVertexInitialize(); |
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589 | lsNewBegin(vertexList, (lsGeneric)result, NIL(lsHandle)); |
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590 | |
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591 | return result; |
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592 | } /* End of LookUpPreImage */ |
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593 | |
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594 | /**Function******************************************************************** |
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595 | |
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596 | Synopsis [Find or add a vertex to the list of variables] |
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597 | |
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598 | SideEffects [] |
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599 | |
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600 | SeeAlso [AbsVertexCatalogFindOrAdd] |
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601 | |
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602 | ******************************************************************************/ |
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603 | static AbsVertexInfo_t * |
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604 | LookUpVariable( |
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605 | lsList vertexList, |
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606 | boolean polarity, |
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607 | int localId) |
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608 | { |
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609 | lsGen listGen; |
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610 | AbsVertexInfo_t *result; |
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611 | |
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612 | /* Start the generator and traverse the list */ |
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613 | listGen = lsStart(vertexList); |
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614 | while(lsNext(listGen, &result, NIL(lsHandle)) == LS_OK) { |
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615 | if (AbsVertexReadPolarity(result) == polarity && |
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616 | AbsVertexReadVarId(result) == localId) { |
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617 | AbsVertexReadRefs(result)++; |
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618 | lsFinish(listGen); |
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619 | return result; |
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620 | } |
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621 | } |
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622 | |
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623 | /* Item has not been found */ |
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624 | lsFinish(listGen); |
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625 | result = AbsVertexInitialize(); |
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626 | lsNewBegin(vertexList, (lsGeneric)result, NIL(lsHandle)); |
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627 | |
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628 | return result; |
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629 | } /* End of LookUpVariable */ |
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630 | |
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