1 | /**CFile*********************************************************************** |
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2 | |
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3 | FileName [imgTfmUtil.c] |
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4 | |
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5 | PackageName [img] |
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6 | |
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7 | Synopsis [Routines for image computation using transition function method.] |
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8 | |
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9 | SeeAlso [] |
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10 | |
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11 | Author [In-Ho Moon] |
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12 | |
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13 | Copyright [Copyright (c) 1994-1996 The Regents of the Univ. of Colorado. |
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14 | All rights reserved. |
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15 | |
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16 | Permission is hereby granted, without written agreement and without license |
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17 | or royalty fees, to use, copy, modify, and distribute this software and its |
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18 | documentation for any purpose, provided that the above copyright notice and |
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19 | the following two paragraphs appear in all copies of this software. |
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20 | |
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21 | IN NO EVENT SHALL THE UNIVERSITY OF COLORADO BE LIABLE TO ANY PARTY FOR |
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22 | DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT |
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23 | OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF |
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24 | COLORADO HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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25 | |
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26 | THE UNIVERSITY OF COLORADO SPECIFICALLY DISCLAIMS ANY WARRANTIES, |
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27 | INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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28 | FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN |
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29 | "AS IS" BASIS, AND THE UNIVERSITY OF COLORADO HAS NO OBLIGATION TO PROVIDE |
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30 | MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.] |
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31 | |
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32 | ******************************************************************************/ |
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33 | #include "imgInt.h" |
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34 | |
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35 | static char rcsid[] UNUSED = "$Id: imgTfmUtil.c,v 1.23 2005/04/23 14:30:55 jinh Exp $"; |
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36 | |
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37 | /*---------------------------------------------------------------------------*/ |
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38 | /* Constant declarations */ |
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39 | /*---------------------------------------------------------------------------*/ |
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40 | |
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41 | /*---------------------------------------------------------------------------*/ |
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42 | /* Type declarations */ |
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43 | /*---------------------------------------------------------------------------*/ |
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44 | |
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45 | /*---------------------------------------------------------------------------*/ |
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46 | /* Structure declarations */ |
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47 | /*---------------------------------------------------------------------------*/ |
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48 | |
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49 | /*---------------------------------------------------------------------------*/ |
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50 | /* Variable declarations */ |
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51 | /*---------------------------------------------------------------------------*/ |
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52 | |
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53 | static double *signatures; /* used in finding dependent variables */ |
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54 | |
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55 | /*---------------------------------------------------------------------------*/ |
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56 | /* Macro declarations */ |
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57 | /*---------------------------------------------------------------------------*/ |
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58 | |
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59 | /**AutomaticStart*************************************************************/ |
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60 | |
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61 | /*---------------------------------------------------------------------------*/ |
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62 | /* Static function prototypes */ |
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63 | /*---------------------------------------------------------------------------*/ |
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64 | |
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65 | static int SignatureCompare(int *ptrX, int *ptrY); |
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66 | static int CompareBddPointer(const void *e1, const void *e2); |
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67 | |
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68 | /**AutomaticEnd***************************************************************/ |
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69 | |
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70 | |
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71 | /*---------------------------------------------------------------------------*/ |
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72 | /* Definition of exported functions */ |
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73 | /*---------------------------------------------------------------------------*/ |
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74 | |
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75 | |
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76 | /*---------------------------------------------------------------------------*/ |
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77 | /* Definition of internal functions */ |
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78 | /*---------------------------------------------------------------------------*/ |
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79 | |
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80 | |
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81 | /**Function******************************************************************** |
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82 | |
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83 | Synopsis [Constrains a function vector with respect to a constraint.] |
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84 | |
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85 | Description [Constrains a function vector with respect to a constraint.] |
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86 | |
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87 | SideEffects [] |
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88 | |
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89 | ******************************************************************************/ |
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90 | void |
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91 | ImgVectorConstrain(ImgTfmInfo_t *info, array_t *vector, mdd_t *constraint, |
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92 | array_t *relationArray, array_t **newVector, mdd_t **cube, |
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93 | array_t **newRelationArray, mdd_t **cofactorCube, |
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94 | mdd_t **abstractCube, boolean singleVarFlag) |
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95 | { |
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96 | mdd_t *new_, *res, *old, *tmp; |
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97 | ImgComponent_t *comp, *comp1; |
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98 | array_t *vector1; |
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99 | int i, index; |
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100 | int dynStatus, dynOff; |
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101 | bdd_reorder_type_t dynMethod; |
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102 | st_table *equivTable; |
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103 | int *ptr, *regularPtr; |
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104 | int n, pos; |
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105 | mdd_t *cofactor, *abstract, *nsVar, *constIntermediate; |
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106 | array_t *tmpRelationArray; |
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107 | int size; |
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108 | |
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109 | old = mdd_one(info->manager); |
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110 | vector1 = array_alloc(ImgComponent_t *, 0); |
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111 | dynStatus = 0; |
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112 | |
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113 | if (singleVarFlag) |
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114 | dynOff = 0; |
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115 | else |
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116 | dynOff = 1; |
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117 | if (dynOff) { |
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118 | dynStatus = bdd_reordering_status(info->manager, &dynMethod); |
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119 | if (dynStatus != 0) |
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120 | bdd_dynamic_reordering_disable(info->manager); |
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121 | } |
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122 | |
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123 | if (relationArray) { |
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124 | cofactor = mdd_one(info->manager); |
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125 | abstract = mdd_one(info->manager); |
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126 | } else { |
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127 | cofactor = NIL(mdd_t); |
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128 | abstract = NIL(mdd_t); |
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129 | } |
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130 | |
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131 | if (info->nIntermediateVars) { |
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132 | size = ImgVectorFunctionSize(vector); |
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133 | if (size == array_n(vector)) |
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134 | constIntermediate = NIL(mdd_t); |
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135 | else |
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136 | constIntermediate = mdd_one(info->manager); |
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137 | } else |
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138 | constIntermediate = NIL(mdd_t); |
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139 | |
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140 | n = 0; |
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141 | equivTable = st_init_table(st_ptrcmp, st_ptrhash); |
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142 | index = (int)bdd_top_var_id(constraint); |
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143 | for (i = 0; i < array_n(vector); i++) { |
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144 | comp = array_fetch(ImgComponent_t *, vector, i); |
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145 | if (!bdd_is_tautology(constraint, 1)) { |
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146 | if (singleVarFlag) { |
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147 | if (comp->support[index]) |
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148 | res = bdd_cofactor(comp->func, constraint); |
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149 | else |
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150 | res = mdd_dup(comp->func); |
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151 | } else |
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152 | res = bdd_cofactor(comp->func, constraint); |
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153 | } else |
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154 | res = mdd_dup(comp->func); |
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155 | if (bdd_is_tautology(res, 1)) { |
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156 | if (comp->intermediate) { |
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157 | tmp = constIntermediate; |
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158 | constIntermediate = mdd_and(tmp, comp->var, 1, 1); |
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159 | mdd_free(tmp); |
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160 | mdd_free(res); |
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161 | continue; |
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162 | } |
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163 | new_ = mdd_and(comp->var, old, 1, 1); |
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164 | mdd_free(old); |
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165 | mdd_free(res); |
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166 | old = new_; |
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167 | if (cofactor) { |
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168 | nsVar = ImgSubstitute(comp->var, info->functionData, Img_D2R_c); |
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169 | tmp = cofactor; |
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170 | cofactor = mdd_and(tmp, nsVar, 1, 1); |
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171 | mdd_free(tmp); |
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172 | mdd_free(nsVar); |
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173 | } |
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174 | } else if (bdd_is_tautology(res, 0)) { |
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175 | if (comp->intermediate) { |
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176 | tmp = constIntermediate; |
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177 | constIntermediate = mdd_and(tmp, comp->var, 1, 0); |
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178 | mdd_free(tmp); |
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179 | mdd_free(res); |
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180 | continue; |
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181 | } |
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182 | new_ = mdd_and(comp->var, old, 0, 1); |
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183 | mdd_free(old); |
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184 | mdd_free(res); |
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185 | old = new_; |
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186 | if (cofactor) { |
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187 | nsVar = ImgSubstitute(comp->var, info->functionData, Img_D2R_c); |
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188 | tmp = cofactor; |
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189 | cofactor = mdd_and(tmp, nsVar, 1, 0); |
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190 | mdd_free(tmp); |
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191 | mdd_free(nsVar); |
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192 | } |
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193 | } else { |
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194 | if (comp->intermediate) { |
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195 | comp1 = ImgComponentAlloc(info); |
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196 | comp1->var = mdd_dup(comp->var); |
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197 | comp1->func = res; |
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198 | comp1->intermediate = 1; |
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199 | if (mdd_equal(res, comp->func)) |
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200 | ImgSupportCopy(info, comp1->support, comp->support); |
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201 | else |
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202 | ImgComponentGetSupport(comp1); |
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203 | array_insert_last(ImgComponent_t *, vector1, comp1); |
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204 | n++; |
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205 | continue; |
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206 | } |
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207 | ptr = (int *)bdd_pointer(res); |
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208 | regularPtr = (int *)((unsigned long)ptr & ~01); |
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209 | if (st_lookup_int(equivTable, (char *)regularPtr, &pos)) { |
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210 | comp1 = array_fetch(ImgComponent_t *, vector1, pos); |
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211 | if (mdd_equal(res, comp1->func)) |
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212 | tmp = mdd_xnor(comp->var, comp1->var); |
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213 | else |
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214 | tmp = mdd_xor(comp->var, comp1->var); |
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215 | new_ = mdd_and(tmp, old, 1, 1); |
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216 | mdd_free(tmp); |
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217 | mdd_free(old); |
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218 | mdd_free(res); |
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219 | old = new_; |
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220 | if (abstract) { |
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221 | nsVar = ImgSubstitute(comp->var, info->functionData, Img_D2R_c); |
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222 | tmp = abstract; |
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223 | abstract = mdd_and(tmp, nsVar, 1, 1); |
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224 | mdd_free(tmp); |
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225 | mdd_free(nsVar); |
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226 | } |
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227 | } else { |
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228 | comp1 = ImgComponentAlloc(info); |
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229 | comp1->var = mdd_dup(comp->var); |
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230 | comp1->func = res; |
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231 | if (mdd_equal(res, comp->func)) |
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232 | ImgSupportCopy(info, comp1->support, comp->support); |
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233 | else |
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234 | ImgComponentGetSupport(comp1); |
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235 | array_insert_last(ImgComponent_t *, vector1, comp1); |
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236 | st_insert(equivTable, (char *)regularPtr, (char *)(long)n); |
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237 | n++; |
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238 | } |
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239 | } |
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240 | } |
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241 | st_free_table(equivTable); |
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242 | |
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243 | if (dynOff && dynStatus != 0) { |
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244 | bdd_dynamic_reordering(info->manager, dynMethod, |
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245 | BDD_REORDER_VERBOSITY_DEFAULT); |
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246 | } |
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247 | |
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248 | if (constIntermediate) { |
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249 | if (!bdd_is_tautology(constIntermediate, 1)) { |
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250 | mdd_t *tmpCofactor, *tmpAbstract; |
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251 | |
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252 | if (relationArray) { |
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253 | vector1 = ImgComposeConstIntermediateVars(info, vector1, |
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254 | constIntermediate, |
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255 | &tmpCofactor, &tmpAbstract, |
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256 | &old, NIL(mdd_t *)); |
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257 | if (!bdd_is_tautology(tmpCofactor, 1)) { |
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258 | tmp = cofactor; |
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259 | cofactor = mdd_and(tmp, tmpCofactor, 1, 1); |
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260 | mdd_free(tmp); |
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261 | } |
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262 | mdd_free(tmpCofactor); |
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263 | if (!bdd_is_tautology(tmpAbstract, 1)) { |
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264 | tmp = abstract; |
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265 | abstract = mdd_and(tmp, tmpAbstract, 1, 1); |
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266 | mdd_free(tmp); |
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267 | } |
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268 | mdd_free(tmpAbstract); |
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269 | tmp = cofactor; |
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270 | cofactor = mdd_and(tmp, constIntermediate, 1, 1); |
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271 | mdd_free(tmp); |
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272 | } else { |
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273 | vector1 = ImgComposeConstIntermediateVars(info, vector1, |
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274 | constIntermediate, |
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275 | NIL(mdd_t *), NIL(mdd_t *), |
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276 | &old, NIL(mdd_t *)); |
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277 | } |
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278 | } |
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279 | mdd_free(constIntermediate); |
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280 | } |
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281 | |
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282 | if (info->option->sortVectorFlag) |
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283 | array_sort(vector1, CompareBddPointer); |
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284 | |
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285 | if (relationArray && newRelationArray) { |
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286 | if (singleVarFlag) { |
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287 | *newRelationArray = relationArray; |
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288 | tmp = cofactor; |
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289 | cofactor = mdd_and(tmp, constraint, 1, 1); |
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290 | mdd_free(tmp); |
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291 | } else |
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292 | *newRelationArray = ImgGetConstrainedRelationArray(info, relationArray, |
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293 | constraint); |
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294 | } |
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295 | if (cofactorCube && abstractCube) { |
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296 | if (cofactor) |
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297 | *cofactorCube = cofactor; |
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298 | if (abstract) |
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299 | *abstractCube = abstract; |
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300 | } else { |
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301 | if (cofactor) { |
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302 | if (bdd_is_tautology(cofactor, 1)) |
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303 | mdd_free(cofactor); |
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304 | else { |
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305 | tmpRelationArray = *newRelationArray; |
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306 | *newRelationArray = ImgGetCofactoredRelationArray(tmpRelationArray, |
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307 | cofactor); |
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308 | mdd_free(cofactor); |
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309 | if (tmpRelationArray != relationArray) |
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310 | mdd_array_free(tmpRelationArray); |
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311 | } |
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312 | } |
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313 | if (abstract) { |
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314 | if (bdd_is_tautology(abstract, 1)) |
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315 | mdd_free(abstract); |
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316 | else { |
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317 | tmpRelationArray = *newRelationArray; |
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318 | *newRelationArray = ImgGetAbstractedRelationArray(info->manager, |
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319 | tmpRelationArray, |
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320 | abstract); |
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321 | mdd_free(abstract); |
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322 | if (tmpRelationArray != relationArray) |
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323 | mdd_array_free(tmpRelationArray); |
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324 | } |
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325 | } |
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326 | } |
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327 | |
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328 | *newVector = vector1; |
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329 | *cube = old; |
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330 | } |
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331 | |
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332 | |
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333 | /**Function******************************************************************** |
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334 | |
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335 | Synopsis [Minimizes a function vector and a from set with respect to an |
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336 | essential cube.] |
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337 | |
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338 | Description [Minimizes a function vector and a from set with respect to an |
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339 | essential cube. This function is called during eliminating dependent |
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340 | variables.] |
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341 | |
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342 | SideEffects [] |
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343 | |
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344 | ******************************************************************************/ |
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345 | mdd_t * |
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346 | ImgVectorMinimize(ImgTfmInfo_t *info, array_t *vector, mdd_t *constraint, |
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347 | mdd_t *from, array_t *relationArray, array_t **newVector, |
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348 | mdd_t **cube, array_t **newRelationArray, |
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349 | mdd_t **cofactorCube, mdd_t **abstractCube) |
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350 | { |
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351 | mdd_t *new_, *res, *old, *tmp, *newFrom; |
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352 | ImgComponent_t *comp, *comp1; |
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353 | array_t *vector1; |
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354 | int i; |
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355 | st_table *equivTable; |
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356 | int *ptr, *regularPtr; |
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357 | int n, pos; |
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358 | mdd_t *cofactor, *abstract, *nsVar, *constIntermediate; |
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359 | array_t *tmpRelationArray; |
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360 | int size; |
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361 | |
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362 | if (from) |
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363 | newFrom = mdd_dup(from); |
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364 | else |
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365 | newFrom = NIL(mdd_t); |
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366 | if (cube) |
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367 | old = mdd_one(info->manager); |
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368 | else |
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369 | old = NIL(mdd_t); |
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370 | assert(newVector) |
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371 | vector1 = array_alloc(ImgComponent_t *, 0); |
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372 | |
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373 | if (relationArray) { |
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374 | cofactor = mdd_one(info->manager); |
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375 | abstract = mdd_one(info->manager); |
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376 | } else { |
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377 | cofactor = NIL(mdd_t); |
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378 | abstract = NIL(mdd_t); |
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379 | } |
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380 | |
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381 | if (info->nIntermediateVars) { |
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382 | size = ImgVectorFunctionSize(vector); |
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383 | if (size == array_n(vector)) |
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384 | constIntermediate = NIL(mdd_t); |
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385 | else |
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386 | constIntermediate = mdd_one(info->manager); |
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387 | } else |
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388 | constIntermediate = NIL(mdd_t); |
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389 | |
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390 | n = 0; |
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391 | equivTable = st_init_table(st_ptrcmp, st_ptrhash); |
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392 | for (i = 0; i < array_n(vector); i++) { |
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393 | comp = array_fetch(ImgComponent_t *, vector, i); |
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394 | res = bdd_minimize(comp->func, constraint); |
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395 | if (bdd_is_tautology(res, 1)) { |
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396 | if (comp->intermediate) { |
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397 | tmp = constIntermediate; |
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398 | constIntermediate = mdd_and(tmp, comp->var, 1, 1); |
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399 | mdd_free(tmp); |
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400 | mdd_free(res); |
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401 | continue; |
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402 | } |
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403 | if (newFrom) { |
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404 | tmp = newFrom; |
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405 | newFrom = bdd_cofactor(tmp, comp->var); |
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406 | mdd_free(tmp); |
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407 | } |
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408 | if (old) { |
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409 | new_ = mdd_and(comp->var, old, 1, 1); |
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410 | mdd_free(old); |
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411 | mdd_free(res); |
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412 | old = new_; |
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413 | } |
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414 | if (cofactor) { |
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415 | nsVar = ImgSubstitute(comp->var, info->functionData, Img_D2R_c); |
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416 | tmp = cofactor; |
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417 | cofactor = mdd_and(tmp, nsVar, 1, 1); |
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418 | mdd_free(tmp); |
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419 | mdd_free(nsVar); |
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420 | } |
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421 | } else if (bdd_is_tautology(res, 0)) { |
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422 | if (comp->intermediate) { |
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423 | tmp = constIntermediate; |
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424 | constIntermediate = mdd_and(tmp, comp->var, 1, 0); |
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425 | mdd_free(tmp); |
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426 | mdd_free(res); |
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427 | continue; |
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428 | } |
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429 | if (newFrom) { |
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430 | tmp = newFrom; |
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431 | new_ = mdd_not(comp->var); |
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432 | newFrom = bdd_cofactor(tmp, new_); |
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433 | mdd_free(tmp); |
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434 | mdd_free(new_); |
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435 | } |
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436 | if (old) { |
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437 | new_ = mdd_and(comp->var, old, 0, 1); |
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438 | mdd_free(old); |
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439 | mdd_free(res); |
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440 | old = new_; |
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441 | } |
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442 | if (cofactor) { |
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443 | nsVar = ImgSubstitute(comp->var, info->functionData, Img_D2R_c); |
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444 | tmp = cofactor; |
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445 | cofactor = mdd_and(tmp, nsVar, 1, 0); |
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446 | mdd_free(tmp); |
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447 | mdd_free(nsVar); |
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448 | } |
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449 | } else { |
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450 | if (comp->intermediate) { |
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451 | comp1 = ImgComponentAlloc(info); |
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452 | comp1->var = mdd_dup(comp->var); |
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453 | comp1->func = res; |
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454 | comp1->intermediate = 1; |
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455 | if (mdd_equal(res, comp->func)) |
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456 | ImgSupportCopy(info, comp1->support, comp->support); |
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457 | else |
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458 | ImgComponentGetSupport(comp1); |
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459 | array_insert_last(ImgComponent_t *, vector1, comp1); |
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460 | n++; |
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461 | continue; |
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462 | } |
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463 | ptr = (int *)bdd_pointer(res); |
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464 | regularPtr = (int *)((unsigned long)ptr & ~01); |
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465 | if (st_lookup_int(equivTable, (char *)regularPtr, &pos)) { |
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466 | comp1 = array_fetch(ImgComponent_t *, vector1, pos); |
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467 | if (newFrom) { |
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468 | if (mdd_equal(res, comp1->func)) { |
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469 | tmp = newFrom; |
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470 | newFrom = bdd_compose(tmp, comp->var, comp1->var); |
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471 | mdd_free(tmp); |
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472 | } else { |
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473 | tmp = newFrom; |
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474 | new_ = mdd_not(comp1->var); |
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475 | newFrom = bdd_compose(tmp, comp->var, new_); |
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476 | mdd_free(tmp); |
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477 | mdd_free(new_); |
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478 | } |
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479 | } |
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480 | if (old) { |
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481 | if (mdd_equal(res, comp1->func)) |
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482 | tmp = mdd_xnor(comp->var, comp1->var); |
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483 | else |
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484 | tmp = mdd_xor(comp->var, comp1->var); |
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485 | new_ = mdd_and(tmp, old, 1, 1); |
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486 | mdd_free(tmp); |
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487 | mdd_free(old); |
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488 | old = new_; |
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489 | } |
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490 | mdd_free(res); |
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491 | if (abstract) { |
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492 | nsVar = ImgSubstitute(comp->var, info->functionData, Img_D2R_c); |
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493 | tmp = abstract; |
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494 | abstract = mdd_and(tmp, nsVar, 1, 1); |
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495 | mdd_free(tmp); |
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496 | mdd_free(nsVar); |
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497 | } |
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498 | } else { |
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499 | comp1 = ImgComponentAlloc(info); |
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500 | comp1->var = mdd_dup(comp->var); |
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501 | comp1->func = res; |
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502 | if (mdd_equal(res, comp->func)) |
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503 | ImgSupportCopy(info, comp1->support, comp->support); |
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504 | else |
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505 | ImgComponentGetSupport(comp1); |
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506 | array_insert_last(ImgComponent_t *, vector1, comp1); |
---|
507 | st_insert(equivTable, (char *)regularPtr, (char *)(long)n); |
---|
508 | n++; |
---|
509 | } |
---|
510 | } |
---|
511 | } |
---|
512 | st_free_table(equivTable); |
---|
513 | |
---|
514 | if (constIntermediate) { |
---|
515 | if (!bdd_is_tautology(constIntermediate, 1)) { |
---|
516 | mdd_t *tmpCofactor, *tmpAbstract; |
---|
517 | |
---|
518 | if (relationArray) { |
---|
519 | vector1 = ImgComposeConstIntermediateVars(info, vector1, |
---|
520 | constIntermediate, |
---|
521 | &tmpCofactor, &tmpAbstract, |
---|
522 | &old, NIL(mdd_t *)); |
---|
523 | if (!bdd_is_tautology(tmpCofactor, 1)) { |
---|
524 | tmp = cofactor; |
---|
525 | cofactor = mdd_and(tmp, tmpCofactor, 1, 1); |
---|
526 | mdd_free(tmp); |
---|
527 | } |
---|
528 | mdd_free(tmpCofactor); |
---|
529 | if (!bdd_is_tautology(tmpAbstract, 1)) { |
---|
530 | tmp = abstract; |
---|
531 | abstract = mdd_and(tmp, tmpAbstract, 1, 1); |
---|
532 | mdd_free(tmp); |
---|
533 | } |
---|
534 | mdd_free(tmpAbstract); |
---|
535 | tmp = cofactor; |
---|
536 | cofactor = mdd_and(tmp, constIntermediate, 1, 1); |
---|
537 | mdd_free(tmp); |
---|
538 | } else { |
---|
539 | vector1 = ImgComposeConstIntermediateVars(info, vector1, |
---|
540 | constIntermediate, |
---|
541 | NIL(mdd_t *), NIL(mdd_t *), |
---|
542 | &old, NIL(mdd_t *)); |
---|
543 | } |
---|
544 | } |
---|
545 | mdd_free(constIntermediate); |
---|
546 | } |
---|
547 | |
---|
548 | if (info->option->sortVectorFlag) |
---|
549 | array_sort(vector1, CompareBddPointer); |
---|
550 | |
---|
551 | if (newRelationArray) |
---|
552 | *newRelationArray = relationArray; |
---|
553 | if (cofactorCube && abstractCube) { |
---|
554 | if (cofactor) { |
---|
555 | if (bdd_is_tautology(cofactor, 1)) { |
---|
556 | *cofactorCube = mdd_dup(constraint); |
---|
557 | mdd_free(cofactor); |
---|
558 | } else { |
---|
559 | tmp = cofactor; |
---|
560 | cofactor = mdd_and(tmp, constraint, 1, 1); |
---|
561 | mdd_free(tmp); |
---|
562 | *cofactorCube = cofactor; |
---|
563 | } |
---|
564 | } |
---|
565 | if (abstract) |
---|
566 | *abstractCube = abstract; |
---|
567 | } else { |
---|
568 | if (cofactor) { |
---|
569 | if (bdd_is_tautology(cofactor, 1)) |
---|
570 | mdd_free(cofactor); |
---|
571 | else { |
---|
572 | tmp = cofactor; |
---|
573 | cofactor = mdd_and(tmp, constraint, 1, 1); |
---|
574 | mdd_free(tmp); |
---|
575 | if (newRelationArray) { |
---|
576 | *newRelationArray = ImgGetCofactoredRelationArray(relationArray, |
---|
577 | cofactor); |
---|
578 | } else |
---|
579 | ImgCofactorRelationArray(relationArray, cofactor); |
---|
580 | mdd_free(cofactor); |
---|
581 | } |
---|
582 | } |
---|
583 | if (abstract) { |
---|
584 | if (bdd_is_tautology(abstract, 1)) |
---|
585 | mdd_free(abstract); |
---|
586 | else { |
---|
587 | if (newRelationArray) { |
---|
588 | tmpRelationArray = *newRelationArray; |
---|
589 | *newRelationArray = ImgGetAbstractedRelationArray(info->manager, |
---|
590 | tmpRelationArray, |
---|
591 | abstract); |
---|
592 | if (tmpRelationArray != relationArray) |
---|
593 | mdd_array_free(tmpRelationArray); |
---|
594 | } else |
---|
595 | ImgAbstractRelationArray(info->manager, relationArray, abstract); |
---|
596 | mdd_free(abstract); |
---|
597 | } |
---|
598 | } |
---|
599 | } |
---|
600 | |
---|
601 | if (*newVector == vector) |
---|
602 | ImgVectorFree(vector); |
---|
603 | *newVector = vector1; |
---|
604 | if (cube) |
---|
605 | *cube = old; |
---|
606 | |
---|
607 | return(newFrom); |
---|
608 | } |
---|
609 | |
---|
610 | |
---|
611 | /**Function******************************************************************** |
---|
612 | |
---|
613 | Synopsis [Frees a function vector.] |
---|
614 | |
---|
615 | Description [Frees a function vector.] |
---|
616 | |
---|
617 | SideEffects [] |
---|
618 | |
---|
619 | ******************************************************************************/ |
---|
620 | void |
---|
621 | ImgVectorFree(array_t *vector) |
---|
622 | { |
---|
623 | int i; |
---|
624 | ImgComponent_t *comp; |
---|
625 | |
---|
626 | for (i = 0; i < array_n(vector); i++) { |
---|
627 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
628 | ImgComponentFree(comp); |
---|
629 | } |
---|
630 | array_free(vector); |
---|
631 | } |
---|
632 | |
---|
633 | |
---|
634 | /**Function******************************************************************** |
---|
635 | |
---|
636 | Synopsis [Returns the number of functions in a vector.] |
---|
637 | |
---|
638 | Description [Returns the number of functions in a vector. Excludes the |
---|
639 | number of intermediate functions.] |
---|
640 | |
---|
641 | SideEffects [] |
---|
642 | |
---|
643 | ******************************************************************************/ |
---|
644 | int |
---|
645 | ImgVectorFunctionSize(array_t *vector) |
---|
646 | { |
---|
647 | ImgComponent_t *comp; |
---|
648 | int i, size; |
---|
649 | |
---|
650 | size = 0; |
---|
651 | for (i = 0; i < array_n(vector); i++) { |
---|
652 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
653 | if (!comp->intermediate) |
---|
654 | size++; |
---|
655 | } |
---|
656 | |
---|
657 | return(size); |
---|
658 | } |
---|
659 | |
---|
660 | |
---|
661 | /**Function******************************************************************** |
---|
662 | |
---|
663 | Synopsis [Returns the shared BDD size of a vector.] |
---|
664 | |
---|
665 | Description [Returns the shared BDD size of a vector.] |
---|
666 | |
---|
667 | SideEffects [] |
---|
668 | |
---|
669 | ******************************************************************************/ |
---|
670 | long |
---|
671 | ImgVectorBddSize(array_t *vector) |
---|
672 | { |
---|
673 | array_t *nodeArray; |
---|
674 | ImgComponent_t *comp; |
---|
675 | int i, size; |
---|
676 | |
---|
677 | nodeArray = array_alloc(mdd_t *, 0); |
---|
678 | for (i = 0; i < array_n(vector); i++) { |
---|
679 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
680 | array_insert_last(mdd_t *, nodeArray, comp->func); |
---|
681 | } |
---|
682 | size = bdd_size_multiple(nodeArray); |
---|
683 | array_free(nodeArray); |
---|
684 | |
---|
685 | return(size); |
---|
686 | } |
---|
687 | |
---|
688 | |
---|
689 | /**Function******************************************************************** |
---|
690 | |
---|
691 | Synopsis [Copies a vector.] |
---|
692 | |
---|
693 | Description [Copies a vector.] |
---|
694 | |
---|
695 | SideEffects [] |
---|
696 | |
---|
697 | ******************************************************************************/ |
---|
698 | array_t * |
---|
699 | ImgVectorCopy(ImgTfmInfo_t *info, array_t *vector) |
---|
700 | { |
---|
701 | array_t *newVector; |
---|
702 | ImgComponent_t *comp, *newComp; |
---|
703 | int i; |
---|
704 | |
---|
705 | newVector = array_alloc(ImgComponent_t *, 0); |
---|
706 | for (i = 0; i < array_n(vector); i++) { |
---|
707 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
708 | newComp = ImgComponentCopy(info, comp); |
---|
709 | array_insert_last(ImgComponent_t *, newVector, newComp); |
---|
710 | } |
---|
711 | return(newVector); |
---|
712 | } |
---|
713 | |
---|
714 | |
---|
715 | /**Function******************************************************************** |
---|
716 | |
---|
717 | Synopsis [Allocates a component.] |
---|
718 | |
---|
719 | Description [Allocates a component.] |
---|
720 | |
---|
721 | SideEffects [] |
---|
722 | |
---|
723 | ******************************************************************************/ |
---|
724 | ImgComponent_t * |
---|
725 | ImgComponentAlloc(ImgTfmInfo_t *info) |
---|
726 | { |
---|
727 | ImgComponent_t *comp; |
---|
728 | |
---|
729 | comp = ALLOC(ImgComponent_t, 1); |
---|
730 | memset(comp, 0, sizeof(ImgComponent_t)); |
---|
731 | comp->support = ALLOC(char, info->nVars); |
---|
732 | ImgSupportClear(info, comp->support); |
---|
733 | comp->id = info->nComponents++; |
---|
734 | return(comp); |
---|
735 | } |
---|
736 | |
---|
737 | |
---|
738 | /**Function******************************************************************** |
---|
739 | |
---|
740 | Synopsis [Copies a component] |
---|
741 | |
---|
742 | Description [Copies a component] |
---|
743 | |
---|
744 | SideEffects [] |
---|
745 | |
---|
746 | ******************************************************************************/ |
---|
747 | ImgComponent_t * |
---|
748 | ImgComponentCopy(ImgTfmInfo_t *info, ImgComponent_t *comp) |
---|
749 | { |
---|
750 | ImgComponent_t *newComp; |
---|
751 | |
---|
752 | newComp = ImgComponentAlloc(info); |
---|
753 | newComp->func = mdd_dup(comp->func); |
---|
754 | newComp->var = mdd_dup(comp->var); |
---|
755 | ImgSupportCopy(info, newComp->support, comp->support); |
---|
756 | newComp->intermediate = comp->intermediate; |
---|
757 | return(newComp); |
---|
758 | } |
---|
759 | |
---|
760 | |
---|
761 | /**Function******************************************************************** |
---|
762 | |
---|
763 | Synopsis [Frees a component.] |
---|
764 | |
---|
765 | Description [Frees a component.] |
---|
766 | |
---|
767 | SideEffects [] |
---|
768 | |
---|
769 | ******************************************************************************/ |
---|
770 | void |
---|
771 | ImgComponentFree(ImgComponent_t *comp) |
---|
772 | { |
---|
773 | if (comp->func) |
---|
774 | mdd_free(comp->func); |
---|
775 | if (comp->var != NULL) |
---|
776 | mdd_free(comp->var); |
---|
777 | FREE(comp->support); |
---|
778 | FREE(comp); |
---|
779 | } |
---|
780 | |
---|
781 | |
---|
782 | /**Function******************************************************************** |
---|
783 | |
---|
784 | Synopsis [Gets the supports of a component.] |
---|
785 | |
---|
786 | Description [Gets the supports of a component.] |
---|
787 | |
---|
788 | SideEffects [] |
---|
789 | |
---|
790 | ******************************************************************************/ |
---|
791 | void |
---|
792 | ImgComponentGetSupport(ImgComponent_t *comp) |
---|
793 | { |
---|
794 | int index; |
---|
795 | var_set_t *supportVarSet; |
---|
796 | |
---|
797 | supportVarSet = bdd_get_support(comp->func); |
---|
798 | for (index = 0; index < supportVarSet->n_elts; index++) { |
---|
799 | if (var_set_get_elt(supportVarSet, index) == 1) |
---|
800 | comp->support[index] = 1; |
---|
801 | } |
---|
802 | var_set_free(supportVarSet); |
---|
803 | } |
---|
804 | |
---|
805 | |
---|
806 | /**Function******************************************************************** |
---|
807 | |
---|
808 | Synopsis [Copies the supports of a component.] |
---|
809 | |
---|
810 | Description [Copies the supports of a component. Here support is an array |
---|
811 | of char.] |
---|
812 | |
---|
813 | SideEffects [] |
---|
814 | |
---|
815 | ******************************************************************************/ |
---|
816 | void |
---|
817 | ImgSupportCopy(ImgTfmInfo_t *info, char *dsupport, char *ssupport) |
---|
818 | { |
---|
819 | memcpy(dsupport, ssupport, sizeof(char) * info->nVars); |
---|
820 | } |
---|
821 | |
---|
822 | |
---|
823 | /**Function******************************************************************** |
---|
824 | |
---|
825 | Synopsis [Clears a support array.] |
---|
826 | |
---|
827 | Description [Clears a support array.] |
---|
828 | |
---|
829 | SideEffects [] |
---|
830 | |
---|
831 | ******************************************************************************/ |
---|
832 | void |
---|
833 | ImgSupportClear(ImgTfmInfo_t *info, char *support) |
---|
834 | { |
---|
835 | memset(support, 0, sizeof(char) * info->nVars); |
---|
836 | } |
---|
837 | |
---|
838 | |
---|
839 | /**Function******************************************************************** |
---|
840 | |
---|
841 | Synopsis [Prints a support array.] |
---|
842 | |
---|
843 | Description [Prints a support array.] |
---|
844 | |
---|
845 | SideEffects [] |
---|
846 | |
---|
847 | ******************************************************************************/ |
---|
848 | void |
---|
849 | ImgSupportPrint(ImgTfmInfo_t *info, char *support) |
---|
850 | { |
---|
851 | int i; |
---|
852 | |
---|
853 | for (i = 0; i < info->nVars; i++) { |
---|
854 | if (support[i]) |
---|
855 | printf("*"); |
---|
856 | else |
---|
857 | printf("."); |
---|
858 | } |
---|
859 | printf("\n"); |
---|
860 | } |
---|
861 | |
---|
862 | |
---|
863 | /**Function******************************************************************** |
---|
864 | |
---|
865 | Synopsis [Returns the number of support of a support array.] |
---|
866 | |
---|
867 | Description [Returns the number of support of a support array.] |
---|
868 | |
---|
869 | SideEffects [] |
---|
870 | |
---|
871 | ******************************************************************************/ |
---|
872 | int |
---|
873 | ImgSupportCount(ImgTfmInfo_t *info, char *support) |
---|
874 | { |
---|
875 | int i, nSupports; |
---|
876 | |
---|
877 | nSupports = 0; |
---|
878 | for (i = 0; i < info->nVars; i++) { |
---|
879 | if (support[i]) |
---|
880 | nSupports++; |
---|
881 | } |
---|
882 | return(nSupports); |
---|
883 | } |
---|
884 | |
---|
885 | |
---|
886 | /**Function******************************************************************** |
---|
887 | |
---|
888 | Synopsis [Constrains a relation array with respect to a constraint.] |
---|
889 | |
---|
890 | Description [Constrains a relation array with respect to a constraint. |
---|
891 | Returns new relation array.] |
---|
892 | |
---|
893 | SideEffects [] |
---|
894 | |
---|
895 | ******************************************************************************/ |
---|
896 | array_t * |
---|
897 | ImgGetConstrainedRelationArray(ImgTfmInfo_t *info, array_t *relationArray, |
---|
898 | mdd_t *constraint) |
---|
899 | { |
---|
900 | array_t *constrainedRelationArray; |
---|
901 | int dynStatus; |
---|
902 | bdd_reorder_type_t dynMethod; |
---|
903 | |
---|
904 | dynStatus = bdd_reordering_status(info->manager, &dynMethod); |
---|
905 | if (dynStatus != 0) |
---|
906 | bdd_dynamic_reordering_disable(info->manager); |
---|
907 | |
---|
908 | constrainedRelationArray = ImgGetCofactoredRelationArray(relationArray, |
---|
909 | constraint); |
---|
910 | |
---|
911 | if (dynStatus != 0) { |
---|
912 | bdd_dynamic_reordering(info->manager, dynMethod, |
---|
913 | BDD_REORDER_VERBOSITY_DEFAULT); |
---|
914 | } |
---|
915 | |
---|
916 | return(constrainedRelationArray); |
---|
917 | } |
---|
918 | |
---|
919 | |
---|
920 | /**Function******************************************************************** |
---|
921 | |
---|
922 | Synopsis [Cofactors a relation array with respect to a function.] |
---|
923 | |
---|
924 | Description [Cofactors a relation array with respect to a function. |
---|
925 | Returns new relation array.] |
---|
926 | |
---|
927 | SideEffects [] |
---|
928 | |
---|
929 | ******************************************************************************/ |
---|
930 | array_t * |
---|
931 | ImgGetCofactoredRelationArray(array_t *relationArray, mdd_t *func) |
---|
932 | { |
---|
933 | int i; |
---|
934 | array_t *cofactoredRelationArray; |
---|
935 | mdd_t *relation, *cofactoredRelation; |
---|
936 | |
---|
937 | if (bdd_is_tautology(func, 1)) |
---|
938 | return(mdd_array_duplicate(relationArray)); |
---|
939 | |
---|
940 | cofactoredRelationArray = array_alloc(mdd_t *, 0); |
---|
941 | |
---|
942 | for (i = 0; i < array_n(relationArray); i++) { |
---|
943 | relation = array_fetch(mdd_t *, relationArray, i); |
---|
944 | cofactoredRelation = bdd_cofactor(relation, func); |
---|
945 | if (bdd_is_tautology(cofactoredRelation, 1)) |
---|
946 | mdd_free(cofactoredRelation); |
---|
947 | else |
---|
948 | array_insert_last(mdd_t *, cofactoredRelationArray, cofactoredRelation); |
---|
949 | } |
---|
950 | |
---|
951 | return(cofactoredRelationArray); |
---|
952 | } |
---|
953 | |
---|
954 | |
---|
955 | /**Function******************************************************************** |
---|
956 | |
---|
957 | Synopsis [Cofactors a relation array with respect to a function.] |
---|
958 | |
---|
959 | Description [Cofactors a relation array with respect to a function.] |
---|
960 | |
---|
961 | SideEffects [] |
---|
962 | |
---|
963 | ******************************************************************************/ |
---|
964 | void |
---|
965 | ImgCofactorRelationArray(array_t *relationArray, mdd_t *func) |
---|
966 | { |
---|
967 | int i; |
---|
968 | mdd_t *relation, *cofactoredRelation; |
---|
969 | |
---|
970 | if (bdd_is_tautology(func, 1)) |
---|
971 | return; |
---|
972 | |
---|
973 | for (i = 0; i < array_n(relationArray); i++) { |
---|
974 | relation = array_fetch(mdd_t *, relationArray, i); |
---|
975 | cofactoredRelation = bdd_cofactor(relation, func); |
---|
976 | if (mdd_equal(cofactoredRelation, relation)) |
---|
977 | mdd_free(cofactoredRelation); |
---|
978 | else { |
---|
979 | mdd_free(relation); |
---|
980 | array_insert(mdd_t *, relationArray, i, cofactoredRelation); |
---|
981 | } |
---|
982 | } |
---|
983 | } |
---|
984 | |
---|
985 | |
---|
986 | /**Function******************************************************************** |
---|
987 | |
---|
988 | Synopsis [Smoothes a relation array with respect to a cube.] |
---|
989 | |
---|
990 | Description [Smoothes a relation array with respect to a cube.] |
---|
991 | |
---|
992 | SideEffects [] |
---|
993 | |
---|
994 | ******************************************************************************/ |
---|
995 | array_t * |
---|
996 | ImgGetAbstractedRelationArray(mdd_manager *manager, array_t *relationArray, |
---|
997 | mdd_t *cube) |
---|
998 | { |
---|
999 | int i; |
---|
1000 | array_t *abstractedRelationArray; |
---|
1001 | mdd_t *relation, *abstractedRelation; |
---|
1002 | array_t *varsArray; |
---|
1003 | |
---|
1004 | if (bdd_is_tautology(cube, 1)) |
---|
1005 | return(mdd_array_duplicate(relationArray)); |
---|
1006 | |
---|
1007 | abstractedRelationArray = array_alloc(mdd_t *, 0); |
---|
1008 | |
---|
1009 | if (bdd_get_package_name() != CUDD) |
---|
1010 | varsArray = mdd_get_bdd_support_vars(manager, cube); |
---|
1011 | else /* to remove uninitialized variable warning*/ |
---|
1012 | varsArray = NIL(array_t); |
---|
1013 | for (i = 0; i < array_n(relationArray); i++) { |
---|
1014 | relation = array_fetch(mdd_t *, relationArray, i); |
---|
1015 | if (bdd_get_package_name() == CUDD) |
---|
1016 | abstractedRelation = bdd_smooth_with_cube(relation, cube); |
---|
1017 | else |
---|
1018 | abstractedRelation = bdd_smooth(relation, varsArray); |
---|
1019 | if (bdd_is_tautology(abstractedRelation, 1)) |
---|
1020 | mdd_free(abstractedRelation); |
---|
1021 | else |
---|
1022 | array_insert_last(mdd_t *, abstractedRelationArray, abstractedRelation); |
---|
1023 | } |
---|
1024 | if (bdd_get_package_name() != CUDD) |
---|
1025 | mdd_array_free(varsArray); |
---|
1026 | |
---|
1027 | return(abstractedRelationArray); |
---|
1028 | } |
---|
1029 | |
---|
1030 | |
---|
1031 | /**Function******************************************************************** |
---|
1032 | |
---|
1033 | Synopsis [Smoothes a relation array with respect to a cube.] |
---|
1034 | |
---|
1035 | Description [Smoothes a relation array with respect to a cube.] |
---|
1036 | |
---|
1037 | SideEffects [] |
---|
1038 | |
---|
1039 | ******************************************************************************/ |
---|
1040 | void |
---|
1041 | ImgAbstractRelationArray(mdd_manager *manager, array_t *relationArray, |
---|
1042 | mdd_t *cube) |
---|
1043 | { |
---|
1044 | int i; |
---|
1045 | mdd_t *relation, *abstractedRelation; |
---|
1046 | array_t *varsArray; |
---|
1047 | |
---|
1048 | if (bdd_is_tautology(cube, 1)) |
---|
1049 | return; |
---|
1050 | |
---|
1051 | if (bdd_get_package_name() != CUDD) |
---|
1052 | varsArray = mdd_get_bdd_support_vars(manager, cube); |
---|
1053 | else /* to remove uninitialized variable warning*/ |
---|
1054 | varsArray = NIL(array_t); |
---|
1055 | for (i = 0; i < array_n(relationArray); i++) { |
---|
1056 | relation = array_fetch(mdd_t *, relationArray, i); |
---|
1057 | if (bdd_get_package_name() == CUDD) |
---|
1058 | abstractedRelation = bdd_smooth_with_cube(relation, cube); |
---|
1059 | else |
---|
1060 | abstractedRelation = bdd_smooth(relation, varsArray); |
---|
1061 | if (mdd_equal(abstractedRelation, relation)) |
---|
1062 | mdd_free(abstractedRelation); |
---|
1063 | else { |
---|
1064 | mdd_free(relation); |
---|
1065 | array_insert(mdd_t *, relationArray, i, abstractedRelation); |
---|
1066 | } |
---|
1067 | } |
---|
1068 | if (bdd_get_package_name() != CUDD) |
---|
1069 | mdd_array_free(varsArray); |
---|
1070 | } |
---|
1071 | |
---|
1072 | |
---|
1073 | /**Function******************************************************************** |
---|
1074 | |
---|
1075 | Synopsis [Cofactors and smooths a relation array.] |
---|
1076 | |
---|
1077 | Description [Cofactors and smooths a relation array. Returns new |
---|
1078 | relation array.] |
---|
1079 | |
---|
1080 | SideEffects [] |
---|
1081 | |
---|
1082 | ******************************************************************************/ |
---|
1083 | array_t * |
---|
1084 | ImgGetCofactoredAbstractedRelationArray(mdd_manager *manager, |
---|
1085 | array_t *relationArray, |
---|
1086 | mdd_t *cofactorCube, |
---|
1087 | mdd_t *abstractCube) |
---|
1088 | { |
---|
1089 | int i; |
---|
1090 | array_t *newRelationArray = array_alloc(mdd_t *, 0); |
---|
1091 | mdd_t *relation, *newRelation, *tmpRelation; |
---|
1092 | array_t *varsArray; |
---|
1093 | |
---|
1094 | if (bdd_get_package_name() != CUDD) |
---|
1095 | varsArray = mdd_get_bdd_support_vars(manager, abstractCube); |
---|
1096 | else /* to remove uninitialized variable warning*/ |
---|
1097 | varsArray = NIL(array_t); |
---|
1098 | for (i = 0; i < array_n(relationArray); i++) { |
---|
1099 | relation = array_fetch(mdd_t *, relationArray, i); |
---|
1100 | tmpRelation = bdd_cofactor(relation, cofactorCube); |
---|
1101 | if (bdd_get_package_name() == CUDD) |
---|
1102 | newRelation = bdd_smooth_with_cube(tmpRelation, abstractCube); |
---|
1103 | else |
---|
1104 | newRelation = bdd_smooth(tmpRelation, varsArray); |
---|
1105 | mdd_free(tmpRelation); |
---|
1106 | if (bdd_is_tautology(newRelation, 1)) |
---|
1107 | mdd_free(newRelation); |
---|
1108 | else |
---|
1109 | array_insert_last(mdd_t *, newRelationArray, newRelation); |
---|
1110 | } |
---|
1111 | if (bdd_get_package_name() != CUDD) |
---|
1112 | mdd_array_free(varsArray); |
---|
1113 | |
---|
1114 | return(newRelationArray); |
---|
1115 | } |
---|
1116 | |
---|
1117 | |
---|
1118 | /**Function******************************************************************** |
---|
1119 | |
---|
1120 | Synopsis [Smothes and cofactors a relation array.] |
---|
1121 | |
---|
1122 | Description [Smothes and cofactors a relation array. Returns new |
---|
1123 | relation array.] |
---|
1124 | |
---|
1125 | SideEffects [] |
---|
1126 | |
---|
1127 | ******************************************************************************/ |
---|
1128 | array_t * |
---|
1129 | ImgGetAbstractedCofactoredRelationArray(mdd_manager *manager, |
---|
1130 | array_t *relationArray, |
---|
1131 | mdd_t *cofactorCube, |
---|
1132 | mdd_t *abstractCube) |
---|
1133 | { |
---|
1134 | int i; |
---|
1135 | array_t *newRelationArray = array_alloc(mdd_t *, 0); |
---|
1136 | mdd_t *relation, *newRelation, *tmpRelation; |
---|
1137 | array_t *varsArray; |
---|
1138 | |
---|
1139 | if (bdd_get_package_name() != CUDD) |
---|
1140 | varsArray = mdd_get_bdd_support_vars(manager, abstractCube); |
---|
1141 | else /* to remove uninitialized variable warning*/ |
---|
1142 | varsArray = NIL(array_t); |
---|
1143 | for (i = 0; i < array_n(relationArray); i++) { |
---|
1144 | relation = array_fetch(mdd_t *, relationArray, i); |
---|
1145 | if (bdd_get_package_name() == CUDD) |
---|
1146 | tmpRelation = bdd_smooth_with_cube(relation, abstractCube); |
---|
1147 | else |
---|
1148 | tmpRelation = bdd_smooth(relation, varsArray); |
---|
1149 | newRelation = bdd_cofactor(tmpRelation, cofactorCube); |
---|
1150 | mdd_free(tmpRelation); |
---|
1151 | if (bdd_is_tautology(newRelation, 1)) |
---|
1152 | mdd_free(newRelation); |
---|
1153 | else |
---|
1154 | array_insert_last(mdd_t *, newRelationArray, newRelation); |
---|
1155 | } |
---|
1156 | if (bdd_get_package_name() != CUDD) |
---|
1157 | mdd_array_free(varsArray); |
---|
1158 | |
---|
1159 | return(newRelationArray); |
---|
1160 | } |
---|
1161 | |
---|
1162 | |
---|
1163 | /**Function******************************************************************** |
---|
1164 | |
---|
1165 | Synopsis [Constrains a function vector with respect to a constraint.] |
---|
1166 | |
---|
1167 | Description [Constrains a function vector with respect to a constraint. |
---|
1168 | Returns new function vector.] |
---|
1169 | |
---|
1170 | SideEffects [] |
---|
1171 | |
---|
1172 | ******************************************************************************/ |
---|
1173 | array_t * |
---|
1174 | ImgGetConstrainedVector(ImgTfmInfo_t *info, array_t *vector, mdd_t *constraint) |
---|
1175 | { |
---|
1176 | array_t *constrainedVector; |
---|
1177 | int dynStatus; |
---|
1178 | bdd_reorder_type_t dynMethod; |
---|
1179 | |
---|
1180 | dynStatus = bdd_reordering_status(info->manager, &dynMethod); |
---|
1181 | if (dynStatus != 0) |
---|
1182 | bdd_dynamic_reordering_disable(info->manager); |
---|
1183 | |
---|
1184 | constrainedVector = ImgGetCofactoredVector(info, vector, constraint); |
---|
1185 | |
---|
1186 | if (dynStatus != 0) { |
---|
1187 | bdd_dynamic_reordering(info->manager, dynMethod, |
---|
1188 | BDD_REORDER_VERBOSITY_DEFAULT); |
---|
1189 | } |
---|
1190 | |
---|
1191 | return(constrainedVector); |
---|
1192 | } |
---|
1193 | |
---|
1194 | |
---|
1195 | /**Function******************************************************************** |
---|
1196 | |
---|
1197 | Synopsis [Cofactors a function vector with respect to a function.] |
---|
1198 | |
---|
1199 | Description [Cofactors a function vector with respect to a function. |
---|
1200 | Returns new function vector.] |
---|
1201 | |
---|
1202 | SideEffects [] |
---|
1203 | |
---|
1204 | ******************************************************************************/ |
---|
1205 | array_t * |
---|
1206 | ImgGetCofactoredVector(ImgTfmInfo_t *info, array_t *vector, mdd_t *func) |
---|
1207 | { |
---|
1208 | int i; |
---|
1209 | array_t *cofactoredVector = array_alloc(ImgComponent_t *, 0); |
---|
1210 | ImgComponent_t *comp, *cofactoredComp; |
---|
1211 | mdd_t *cofactoredFunc; |
---|
1212 | |
---|
1213 | if (bdd_is_tautology(func, 1)) |
---|
1214 | return(ImgVectorCopy(info, vector)); |
---|
1215 | |
---|
1216 | for (i = 0; i < array_n(vector); i++) { |
---|
1217 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
1218 | cofactoredFunc = bdd_cofactor(comp->func, func); |
---|
1219 | cofactoredComp = ImgComponentAlloc(info); |
---|
1220 | cofactoredComp->var = mdd_dup(comp->var); |
---|
1221 | cofactoredComp->func = cofactoredFunc; |
---|
1222 | cofactoredComp->intermediate = comp->intermediate; |
---|
1223 | if (mdd_equal(cofactoredFunc, comp->func)) |
---|
1224 | ImgSupportCopy(info, cofactoredComp->support, comp->support); |
---|
1225 | else |
---|
1226 | ImgComponentGetSupport(cofactoredComp); |
---|
1227 | array_insert_last(ImgComponent_t *, cofactoredVector, cofactoredComp); |
---|
1228 | } |
---|
1229 | |
---|
1230 | return(cofactoredVector); |
---|
1231 | } |
---|
1232 | |
---|
1233 | |
---|
1234 | /**Function******************************************************************** |
---|
1235 | |
---|
1236 | Synopsis [Cofactors a function vector with respect to a function.] |
---|
1237 | |
---|
1238 | Description [Cofactors a function vector with respect to a function.] |
---|
1239 | |
---|
1240 | SideEffects [] |
---|
1241 | |
---|
1242 | ******************************************************************************/ |
---|
1243 | void |
---|
1244 | ImgCofactorVector(ImgTfmInfo_t *info, array_t *vector, mdd_t *func) |
---|
1245 | { |
---|
1246 | int i; |
---|
1247 | ImgComponent_t *comp; |
---|
1248 | mdd_t *cofactoredFunc; |
---|
1249 | |
---|
1250 | if (bdd_is_tautology(func, 1)) |
---|
1251 | return; |
---|
1252 | |
---|
1253 | for (i = 0; i < array_n(vector); i++) { |
---|
1254 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
1255 | cofactoredFunc = bdd_cofactor(comp->func, func); |
---|
1256 | if (mdd_equal(cofactoredFunc, comp->func)) |
---|
1257 | mdd_free(cofactoredFunc); |
---|
1258 | else { |
---|
1259 | mdd_free(comp->func); |
---|
1260 | comp->func = cofactoredFunc; |
---|
1261 | ImgSupportClear(info, comp->support); |
---|
1262 | ImgComponentGetSupport(comp); |
---|
1263 | } |
---|
1264 | } |
---|
1265 | } |
---|
1266 | |
---|
1267 | |
---|
1268 | /**Function******************************************************************** |
---|
1269 | |
---|
1270 | Synopsis [Eliminates dependent variables from transition function.] |
---|
1271 | |
---|
1272 | Description [Eliminates dependent variables from a transition |
---|
1273 | function. Returns a simplified copy of the given states if successful; |
---|
1274 | NULL otherwise.] |
---|
1275 | |
---|
1276 | SideEffects [vector is also modified.] |
---|
1277 | |
---|
1278 | SeeAlso [] |
---|
1279 | |
---|
1280 | ******************************************************************************/ |
---|
1281 | mdd_t * |
---|
1282 | ImgTfmEliminateDependVars(ImgTfmInfo_t *info, array_t *vector, |
---|
1283 | array_t *relationArray, mdd_t *states, |
---|
1284 | array_t **newVector, |
---|
1285 | mdd_t **dependRelations) |
---|
1286 | { |
---|
1287 | int i, j; |
---|
1288 | int howMany = 0; |
---|
1289 | /* number of latches that can be eliminated */ |
---|
1290 | mdd_t *var, *newStates, *abs, *positive, *phi; |
---|
1291 | mdd_t *tmp, *relation; |
---|
1292 | int nVars; |
---|
1293 | int nSupports; /* vars in the support of the state set */ |
---|
1294 | int *candidates; /* vars to be considered for elimination */ |
---|
1295 | double minStates; |
---|
1296 | ImgComponent_t *comp, *newComp; |
---|
1297 | |
---|
1298 | if (dependRelations) { |
---|
1299 | *dependRelations = mdd_one(info->manager); |
---|
1300 | *newVector = array_alloc(ImgComponent_t *, 0); |
---|
1301 | } |
---|
1302 | newStates = mdd_dup(states); |
---|
1303 | nVars = info->nVars; |
---|
1304 | |
---|
1305 | candidates = ALLOC(int, nVars); |
---|
1306 | if (candidates == NULL) |
---|
1307 | return(NULL); |
---|
1308 | |
---|
1309 | comp = ImgComponentAlloc(info); |
---|
1310 | comp->func = newStates; |
---|
1311 | ImgComponentGetSupport(comp); |
---|
1312 | nSupports = 0; |
---|
1313 | for (i = 0 ; i < nVars; i++) { |
---|
1314 | if (comp->support[i]) { |
---|
1315 | candidates[nSupports] = i; |
---|
1316 | nSupports++; |
---|
1317 | } |
---|
1318 | } |
---|
1319 | comp->func = NIL(mdd_t); |
---|
1320 | ImgComponentFree(comp); |
---|
1321 | |
---|
1322 | /* The signatures of the variables in a function are the number |
---|
1323 | ** of minterms of the positive cofactors with respect to the |
---|
1324 | ** variables themselves. */ |
---|
1325 | signatures = bdd_cof_minterm(newStates); |
---|
1326 | if (signatures == NULL) { |
---|
1327 | FREE(candidates); |
---|
1328 | return(NULL); |
---|
1329 | } |
---|
1330 | /* We now extract a positive quantity which is higher for those |
---|
1331 | ** variables that are closer to being essential. */ |
---|
1332 | minStates = signatures[nSupports]; |
---|
1333 | for (i = 0; i < nSupports; i++) { |
---|
1334 | double z = signatures[i] / minStates - 1.0; |
---|
1335 | signatures[i] = (z < 0.0) ? -z : z; /* make positive */ |
---|
1336 | } |
---|
1337 | qsort((void *)candidates, nSupports, sizeof(int), |
---|
1338 | (int (*)(const void *, const void *))SignatureCompare); |
---|
1339 | FREE(signatures); |
---|
1340 | |
---|
1341 | /* Now process the candidates in the given order. */ |
---|
1342 | for (i = 0; i < nSupports; i++) { |
---|
1343 | var = bdd_var_with_index(info->manager, candidates[i]); |
---|
1344 | if (bdd_var_is_dependent(newStates, var)) { |
---|
1345 | abs = bdd_smooth_with_cube(newStates, var); |
---|
1346 | if (abs == NULL) |
---|
1347 | return(NULL); |
---|
1348 | positive = bdd_cofactor(newStates, var); |
---|
1349 | if (positive == NULL) |
---|
1350 | return(NULL); |
---|
1351 | phi = Img_MinimizeImage(positive, abs, Img_DefaultMinimizeMethod_c, |
---|
1352 | TRUE); |
---|
1353 | if (phi == NULL) |
---|
1354 | return(NULL); |
---|
1355 | mdd_free(positive); |
---|
1356 | if (bdd_size(phi) < IMG_MAX_DEP_SIZE) { |
---|
1357 | howMany++; |
---|
1358 | if (dependRelations) { |
---|
1359 | for (j = 0; j < array_n(vector); j++) { |
---|
1360 | comp = array_fetch(ImgComponent_t *, vector, j); |
---|
1361 | if (mdd_equal(comp->var, var)) |
---|
1362 | continue; |
---|
1363 | newComp = ImgComponentCopy(info, comp); |
---|
1364 | array_insert_last(ImgComponent_t *, *newVector, newComp); |
---|
1365 | } |
---|
1366 | } else { |
---|
1367 | for (j = 0; j < array_n(vector); j++) { |
---|
1368 | comp = array_fetch(ImgComponent_t *, vector, j); |
---|
1369 | tmp = bdd_compose(comp->func, var, phi); |
---|
1370 | if (tmp == NULL) |
---|
1371 | return(NULL); |
---|
1372 | mdd_free(comp->func); |
---|
1373 | comp->func = tmp; |
---|
1374 | ImgSupportClear(info, comp->support); |
---|
1375 | ImgComponentGetSupport(comp); |
---|
1376 | } |
---|
1377 | } |
---|
1378 | if (relationArray) { |
---|
1379 | for (j = 0; j < array_n(relationArray); j++) { |
---|
1380 | relation = array_fetch(mdd_t *, relationArray, j); |
---|
1381 | if (dependRelations) |
---|
1382 | tmp = bdd_smooth_with_cube(relation, var); |
---|
1383 | else |
---|
1384 | tmp = bdd_compose(relation, var, phi); |
---|
1385 | mdd_free(relation); |
---|
1386 | array_insert(mdd_t *, relationArray, j, tmp); |
---|
1387 | } |
---|
1388 | } |
---|
1389 | mdd_free(newStates); |
---|
1390 | newStates = abs; |
---|
1391 | if (dependRelations) { |
---|
1392 | relation = mdd_xnor(var, phi); |
---|
1393 | tmp = mdd_and(*dependRelations, relation, 1, 1); |
---|
1394 | mdd_free(*dependRelations); |
---|
1395 | mdd_free(relation); |
---|
1396 | *dependRelations = tmp; |
---|
1397 | } |
---|
1398 | } else { |
---|
1399 | mdd_free(abs); |
---|
1400 | } |
---|
1401 | mdd_free(phi); |
---|
1402 | } |
---|
1403 | } |
---|
1404 | FREE(candidates); |
---|
1405 | |
---|
1406 | if (howMany) { |
---|
1407 | if (info->imageVerbosity > 0) |
---|
1408 | (void)fprintf(vis_stdout, "Eliminated %d vars.\n", howMany); |
---|
1409 | info->averageFoundDependVars = (info->averageFoundDependVars * |
---|
1410 | (float)info->nFoundDependVars + (float)howMany) / |
---|
1411 | (float)(info->nFoundDependVars + 1); |
---|
1412 | info->nFoundDependVars++; |
---|
1413 | } |
---|
1414 | |
---|
1415 | info->nPrevEliminatedFwd = howMany; |
---|
1416 | return(newStates); |
---|
1417 | } /* end of TfmEliminateDependVars */ |
---|
1418 | |
---|
1419 | |
---|
1420 | /**Function******************************************************************** |
---|
1421 | |
---|
1422 | Synopsis [Checks whether there is a constant function of intermediate |
---|
1423 | variables.] |
---|
1424 | |
---|
1425 | Description [Checks whether there is a constant function of intermediate |
---|
1426 | variables.] |
---|
1427 | |
---|
1428 | SideEffects [] |
---|
1429 | |
---|
1430 | ******************************************************************************/ |
---|
1431 | int |
---|
1432 | ImgExistConstIntermediateVar(array_t *vector) |
---|
1433 | { |
---|
1434 | int i; |
---|
1435 | ImgComponent_t *comp; |
---|
1436 | |
---|
1437 | for (i = 0; i < array_n(vector); i++) { |
---|
1438 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
1439 | if (comp->intermediate) { |
---|
1440 | if (mdd_is_tautology(comp->func, 1) || mdd_is_tautology(comp->func, 0)) |
---|
1441 | return(1); |
---|
1442 | } |
---|
1443 | } |
---|
1444 | return(0); |
---|
1445 | } |
---|
1446 | |
---|
1447 | |
---|
1448 | /**Function******************************************************************** |
---|
1449 | |
---|
1450 | Synopsis [Returns a function composed all intermediate variables.] |
---|
1451 | |
---|
1452 | Description [Returns a function composed all intermediate variables.] |
---|
1453 | |
---|
1454 | SideEffects [] |
---|
1455 | |
---|
1456 | ******************************************************************************/ |
---|
1457 | mdd_t * |
---|
1458 | ImgGetComposedFunction(array_t *vector) |
---|
1459 | { |
---|
1460 | ImgComponent_t *comp; |
---|
1461 | mdd_t *func, *newFunc; |
---|
1462 | int i; |
---|
1463 | array_t *varArray, *funcArray; |
---|
1464 | |
---|
1465 | assert(ImgVectorFunctionSize(vector) == 1); |
---|
1466 | |
---|
1467 | /* no intermediate variables */ |
---|
1468 | if (array_n(vector) == 1) { |
---|
1469 | comp = array_fetch(ImgComponent_t *, vector, 0); |
---|
1470 | newFunc = mdd_dup(comp->func); |
---|
1471 | return(newFunc); |
---|
1472 | } |
---|
1473 | |
---|
1474 | func = NIL(mdd_t); |
---|
1475 | varArray = array_alloc(mdd_t *, 0); |
---|
1476 | funcArray = array_alloc(mdd_t *, 0); |
---|
1477 | |
---|
1478 | for (i = 0; i < array_n(vector); i++) { |
---|
1479 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
1480 | if (comp->intermediate) { |
---|
1481 | array_insert_last(mdd_t *, varArray, comp->var); |
---|
1482 | array_insert_last(mdd_t *, funcArray, comp->func); |
---|
1483 | continue; |
---|
1484 | } |
---|
1485 | func = comp->func; |
---|
1486 | } |
---|
1487 | |
---|
1488 | newFunc = bdd_vector_compose(func, varArray, funcArray); |
---|
1489 | array_free(varArray); |
---|
1490 | array_free(funcArray); |
---|
1491 | return(newFunc); |
---|
1492 | } |
---|
1493 | |
---|
1494 | |
---|
1495 | /**Function******************************************************************** |
---|
1496 | |
---|
1497 | Synopsis [Returns the first latch component.] |
---|
1498 | |
---|
1499 | Description [Returns the first latch component.] |
---|
1500 | |
---|
1501 | SideEffects [] |
---|
1502 | |
---|
1503 | ******************************************************************************/ |
---|
1504 | ImgComponent_t * |
---|
1505 | ImgGetLatchComponent(array_t *vector) |
---|
1506 | { |
---|
1507 | ImgComponent_t *comp; |
---|
1508 | int i; |
---|
1509 | |
---|
1510 | for (i = 0; i < array_n(vector); i++) { |
---|
1511 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
1512 | if (!comp->intermediate) |
---|
1513 | return(comp); |
---|
1514 | } |
---|
1515 | return(NIL(ImgComponent_t)); |
---|
1516 | } |
---|
1517 | |
---|
1518 | |
---|
1519 | /**Function******************************************************************** |
---|
1520 | |
---|
1521 | Synopsis [Compose the constant intermediate variable functions.] |
---|
1522 | |
---|
1523 | Description [Compose the constant intermediate variable functions.] |
---|
1524 | |
---|
1525 | SideEffects [] |
---|
1526 | |
---|
1527 | ******************************************************************************/ |
---|
1528 | array_t * |
---|
1529 | ImgComposeConstIntermediateVars(ImgTfmInfo_t *info, array_t *vector, |
---|
1530 | mdd_t *constIntermediate, |
---|
1531 | mdd_t **cofactorCube, mdd_t **abstractCube, |
---|
1532 | mdd_t **and_, mdd_t **from) |
---|
1533 | { |
---|
1534 | int i, n, pos; |
---|
1535 | array_t *tmpVector, *cofactoredVector; |
---|
1536 | mdd_t *cofactor, *abstract; |
---|
1537 | mdd_t *curConstIntermediate, *newConstIntermediate; |
---|
1538 | mdd_t *tmp, *new_, *func, *varNot, *nsVar; |
---|
1539 | ImgComponent_t *comp, *comp1; |
---|
1540 | st_table *equivTable; |
---|
1541 | int *ptr, *regularPtr; |
---|
1542 | |
---|
1543 | if (cofactorCube) |
---|
1544 | cofactor = mdd_one(info->manager); |
---|
1545 | else |
---|
1546 | cofactor = NIL(mdd_t); |
---|
1547 | if (abstractCube) |
---|
1548 | abstract = mdd_one(info->manager); |
---|
1549 | else |
---|
1550 | abstract = NIL(mdd_t); |
---|
1551 | |
---|
1552 | cofactoredVector = vector; |
---|
1553 | tmpVector = cofactoredVector; |
---|
1554 | curConstIntermediate = constIntermediate; |
---|
1555 | |
---|
1556 | while (!bdd_is_tautology(curConstIntermediate, 1)) { |
---|
1557 | newConstIntermediate = mdd_one(info->manager); |
---|
1558 | n = 0; |
---|
1559 | equivTable = st_init_table(st_ptrcmp, st_ptrhash); |
---|
1560 | cofactoredVector = array_alloc(ImgComponent_t *, 0); |
---|
1561 | for (i = 0; i < array_n(tmpVector); i++) { |
---|
1562 | comp = array_fetch(ImgComponent_t *, tmpVector, i); |
---|
1563 | func = bdd_cofactor(comp->func, curConstIntermediate); |
---|
1564 | |
---|
1565 | if (comp->intermediate) { |
---|
1566 | if (mdd_is_tautology(func, 1)) { |
---|
1567 | tmp = newConstIntermediate; |
---|
1568 | newConstIntermediate = mdd_and(tmp, comp->var, 1, 1); |
---|
1569 | mdd_free(tmp); |
---|
1570 | mdd_free(func); |
---|
1571 | continue; |
---|
1572 | } else if (mdd_is_tautology(func, 0)) { |
---|
1573 | tmp = newConstIntermediate; |
---|
1574 | newConstIntermediate = mdd_and(tmp, comp->var, 1, 0); |
---|
1575 | mdd_free(tmp); |
---|
1576 | mdd_free(func); |
---|
1577 | continue; |
---|
1578 | } |
---|
1579 | |
---|
1580 | comp1 = ImgComponentAlloc(info); |
---|
1581 | comp1->var = mdd_dup(comp->var); |
---|
1582 | comp1->func = func; |
---|
1583 | comp1->intermediate = 1; |
---|
1584 | if (mdd_equal(func, comp->func)) |
---|
1585 | ImgSupportCopy(info, comp1->support, comp->support); |
---|
1586 | else |
---|
1587 | ImgComponentGetSupport(comp1); |
---|
1588 | array_insert_last(ImgComponent_t *, cofactoredVector, comp1); |
---|
1589 | n++; |
---|
1590 | continue; |
---|
1591 | } |
---|
1592 | |
---|
1593 | if (mdd_is_tautology(func, 1)) { |
---|
1594 | if (cofactor) { |
---|
1595 | nsVar = ImgSubstitute(comp->var, info->functionData, Img_D2R_c); |
---|
1596 | tmp = cofactor; |
---|
1597 | cofactor = mdd_and(tmp, nsVar, 1, 1); |
---|
1598 | mdd_free(tmp); |
---|
1599 | mdd_free(nsVar); |
---|
1600 | } |
---|
1601 | if (and_) { |
---|
1602 | tmp = *and_; |
---|
1603 | *and_ = mdd_and(tmp, comp->var, 1, 1); |
---|
1604 | mdd_free(tmp); |
---|
1605 | } |
---|
1606 | if (from) { |
---|
1607 | tmp = *from; |
---|
1608 | *from = bdd_cofactor(tmp, comp->var); |
---|
1609 | mdd_free(tmp); |
---|
1610 | } |
---|
1611 | mdd_free(func); |
---|
1612 | } else if (mdd_is_tautology(func, 0)) { |
---|
1613 | if (cofactor) { |
---|
1614 | nsVar = ImgSubstitute(comp->var, info->functionData, Img_D2R_c); |
---|
1615 | tmp = cofactor; |
---|
1616 | cofactor = mdd_and(tmp, nsVar, 1, 0); |
---|
1617 | mdd_free(tmp); |
---|
1618 | mdd_free(nsVar); |
---|
1619 | } |
---|
1620 | if (and_) { |
---|
1621 | tmp = *and_; |
---|
1622 | *and_ = mdd_and(tmp, comp->var, 1, 0); |
---|
1623 | mdd_free(tmp); |
---|
1624 | } |
---|
1625 | if (from) { |
---|
1626 | tmp = *from; |
---|
1627 | varNot = bdd_not(comp->var); |
---|
1628 | *from = bdd_cofactor(tmp, varNot); |
---|
1629 | mdd_free(tmp); |
---|
1630 | mdd_free(varNot); |
---|
1631 | } |
---|
1632 | mdd_free(func); |
---|
1633 | } else { |
---|
1634 | ptr = (int *)bdd_pointer(func); |
---|
1635 | regularPtr = (int *)((unsigned long)ptr & ~01); |
---|
1636 | if (st_lookup_int(equivTable, (char *)regularPtr, &pos)) { |
---|
1637 | comp1 = array_fetch(ImgComponent_t *, cofactoredVector, pos); |
---|
1638 | if (and_) { |
---|
1639 | if (mdd_equal(func, comp1->func)) |
---|
1640 | tmp = mdd_xnor(comp->var, comp1->var); |
---|
1641 | else |
---|
1642 | tmp = mdd_xor(comp->var, comp1->var); |
---|
1643 | new_ = mdd_and(tmp, *and_, 1, 1); |
---|
1644 | mdd_free(tmp); |
---|
1645 | mdd_free(*and_); |
---|
1646 | mdd_free(func); |
---|
1647 | *and_ = new_; |
---|
1648 | } |
---|
1649 | if (abstract) { |
---|
1650 | nsVar = ImgSubstitute(comp->var, info->functionData, Img_D2R_c); |
---|
1651 | tmp = abstract; |
---|
1652 | abstract = mdd_and(tmp, nsVar, 1, 1); |
---|
1653 | mdd_free(tmp); |
---|
1654 | mdd_free(nsVar); |
---|
1655 | } |
---|
1656 | if (from) { |
---|
1657 | tmp = *from; |
---|
1658 | *from = bdd_compose(tmp, comp->var, comp1->var); |
---|
1659 | mdd_free(tmp); |
---|
1660 | } |
---|
1661 | } else { |
---|
1662 | comp1 = ImgComponentAlloc(info); |
---|
1663 | comp1->var = mdd_dup(comp->var); |
---|
1664 | comp1->func = func; |
---|
1665 | if (mdd_equal(func, comp->func)) |
---|
1666 | ImgSupportCopy(info, comp1->support, comp->support); |
---|
1667 | else |
---|
1668 | ImgComponentGetSupport(comp1); |
---|
1669 | array_insert_last(ImgComponent_t *, cofactoredVector, comp1); |
---|
1670 | st_insert(equivTable, (char *)regularPtr, (char *)(long)n); |
---|
1671 | n++; |
---|
1672 | } |
---|
1673 | } |
---|
1674 | } |
---|
1675 | |
---|
1676 | if (curConstIntermediate != constIntermediate) |
---|
1677 | mdd_free(curConstIntermediate); |
---|
1678 | curConstIntermediate = newConstIntermediate; |
---|
1679 | |
---|
1680 | if (cofactor) { |
---|
1681 | tmp = cofactor; |
---|
1682 | cofactor = mdd_and(tmp, curConstIntermediate, 1, 1); |
---|
1683 | mdd_free(tmp); |
---|
1684 | } |
---|
1685 | |
---|
1686 | st_free_table(equivTable); |
---|
1687 | ImgVectorFree(tmpVector); |
---|
1688 | tmpVector = cofactoredVector; |
---|
1689 | } |
---|
1690 | |
---|
1691 | if (curConstIntermediate != constIntermediate) |
---|
1692 | mdd_free(curConstIntermediate); |
---|
1693 | |
---|
1694 | if (cofactorCube) |
---|
1695 | *cofactorCube = cofactor; |
---|
1696 | if (abstractCube) |
---|
1697 | *abstractCube = abstract; |
---|
1698 | |
---|
1699 | return(cofactoredVector); |
---|
1700 | } |
---|
1701 | |
---|
1702 | |
---|
1703 | /**Function******************************************************************** |
---|
1704 | |
---|
1705 | Synopsis [Returns the number of BDD supports in a function.] |
---|
1706 | |
---|
1707 | Description [Returns the number of BDD supports in a function.] |
---|
1708 | |
---|
1709 | SideEffects [] |
---|
1710 | |
---|
1711 | ******************************************************************************/ |
---|
1712 | int |
---|
1713 | ImgCountBddSupports(mdd_t *func) |
---|
1714 | { |
---|
1715 | int index, nSupports = 0; |
---|
1716 | var_set_t *supportVarSet; |
---|
1717 | |
---|
1718 | supportVarSet = bdd_get_support(func); |
---|
1719 | for (index = 0; index < supportVarSet->n_elts; index++) { |
---|
1720 | if (var_set_get_elt(supportVarSet, index) == 1) |
---|
1721 | nSupports++; |
---|
1722 | } |
---|
1723 | var_set_free(supportVarSet); |
---|
1724 | return(nSupports); |
---|
1725 | } |
---|
1726 | |
---|
1727 | |
---|
1728 | /**Function******************************************************************** |
---|
1729 | |
---|
1730 | Synopsis [Quick checking whether the results of constrain between two |
---|
1731 | functions are constant.] |
---|
1732 | |
---|
1733 | Description [Quick checking whether the results of constrain between two |
---|
1734 | functions are constant. Assumes that 1) f1 != f2 and f1 != f2', and |
---|
1735 | 2) neither f1 nor f2 is constant.] |
---|
1736 | |
---|
1737 | SideEffects [] |
---|
1738 | |
---|
1739 | ******************************************************************************/ |
---|
1740 | void |
---|
1741 | ImgCheckConstConstrain(mdd_t *f1, mdd_t *f2, int *f21p, int *f21n) |
---|
1742 | { |
---|
1743 | if (mdd_lequal(f1, f2, 1, 1)) { /* f2 > f1 */ |
---|
1744 | *f21p = 1; |
---|
1745 | *f21n = 2; |
---|
1746 | } else if (mdd_lequal(f2, f1, 1, 0)) { /* f2&f1=0 -> f2 < f1' */ |
---|
1747 | *f21p = 0; |
---|
1748 | *f21n = 2; |
---|
1749 | } else if (mdd_lequal(f1, f2, 0, 1)) { /* f2 > f1' */ |
---|
1750 | *f21p = 2; |
---|
1751 | *f21n = 1; |
---|
1752 | } else if (mdd_lequal(f2, f1, 1, 1)) { /* f2&f1'=0 -> f2 < f1 */ |
---|
1753 | *f21p = 2; |
---|
1754 | *f21n = 0; |
---|
1755 | } else { |
---|
1756 | *f21p = 2; |
---|
1757 | *f21n = 2; |
---|
1758 | } |
---|
1759 | } |
---|
1760 | |
---|
1761 | |
---|
1762 | /**Function******************************************************************** |
---|
1763 | |
---|
1764 | Synopsis [Checks whether the result of constrain is constant.] |
---|
1765 | |
---|
1766 | Description [Checks whether the result of constrain is constant.] |
---|
1767 | |
---|
1768 | SideEffects [] |
---|
1769 | |
---|
1770 | ******************************************************************************/ |
---|
1771 | int |
---|
1772 | ImgConstConstrain(mdd_t *func, mdd_t *constraint) |
---|
1773 | { |
---|
1774 | if (mdd_lequal(constraint, func, 1, 1)) /* func | constraint = 1 */ |
---|
1775 | return(1); |
---|
1776 | if (mdd_lequal(func, constraint, 1, 0)) /* func | constraint = 0 */ |
---|
1777 | return(0); |
---|
1778 | return(2); /* non-constant */ |
---|
1779 | } |
---|
1780 | |
---|
1781 | |
---|
1782 | /**Function******************************************************************** |
---|
1783 | |
---|
1784 | Synopsis [Prints vector dependencies with support.] |
---|
1785 | |
---|
1786 | Description [Prints vector dependencies with support.] |
---|
1787 | |
---|
1788 | SideEffects [] |
---|
1789 | |
---|
1790 | ******************************************************************************/ |
---|
1791 | void |
---|
1792 | ImgPrintVectorDependency(ImgTfmInfo_t *info, array_t *vector, int verbosity) |
---|
1793 | { |
---|
1794 | int i, j, index, nFuncs, nSupports; |
---|
1795 | int nLambdaLatches, nConstLatches, nIntermediateVars; |
---|
1796 | int count, countStates, total; |
---|
1797 | int start, end; |
---|
1798 | char *support, line[80]; |
---|
1799 | ImgComponent_t *comp; |
---|
1800 | |
---|
1801 | if (verbosity == 0 || (!vector)) |
---|
1802 | return; |
---|
1803 | |
---|
1804 | support = ALLOC(char, sizeof(char) * info->nVars); |
---|
1805 | memset(support, 0, sizeof(char) * info->nVars); |
---|
1806 | |
---|
1807 | count = countStates = 0; |
---|
1808 | nFuncs = array_n(vector); |
---|
1809 | for (i = 0; i < nFuncs; i++) { |
---|
1810 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
1811 | for (j = 0; j < info->nVars; j++) { |
---|
1812 | if (comp->support[j]) { |
---|
1813 | support[j] = 1; |
---|
1814 | count++; |
---|
1815 | if (!st_lookup(info->quantifyVarsTable, (char *)(long)j, NIL(char *))) |
---|
1816 | countStates++; |
---|
1817 | } |
---|
1818 | } |
---|
1819 | } |
---|
1820 | nSupports = 0; |
---|
1821 | for (i = 0; i < info->nVars; i++) { |
---|
1822 | if (support[i]) |
---|
1823 | nSupports++; |
---|
1824 | } |
---|
1825 | nLambdaLatches = 0; |
---|
1826 | nConstLatches = 0; |
---|
1827 | nIntermediateVars = 0; |
---|
1828 | for (i = 0; i < nFuncs; i++) { |
---|
1829 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
1830 | index = bdd_top_var_id(comp->var); |
---|
1831 | if (!support[index]) |
---|
1832 | nLambdaLatches++; |
---|
1833 | if (ImgSupportCount(info, comp->support) == 0) |
---|
1834 | nConstLatches++; |
---|
1835 | if (comp->intermediate) |
---|
1836 | nIntermediateVars++; |
---|
1837 | } |
---|
1838 | fprintf(vis_stdout, "** tfm info: #vars = %d(%d)\n", |
---|
1839 | info->nVars - nFuncs + nIntermediateVars, info->nVars); |
---|
1840 | fprintf(vis_stdout, "** tfm info: #input vars = %d\n", |
---|
1841 | info->nVars - (nFuncs - nIntermediateVars) * 2 - nIntermediateVars); |
---|
1842 | fprintf(vis_stdout, "** tfm info: #funcs = %d\n", nFuncs); |
---|
1843 | fprintf(vis_stdout, "** tfm info: #lambda funcs = %d\n", nLambdaLatches); |
---|
1844 | fprintf(vis_stdout, "** tfm info: #constant funcs = %d\n", nConstLatches); |
---|
1845 | fprintf(vis_stdout, "** tfm info: #intermediate funcs = %d\n", |
---|
1846 | nIntermediateVars); |
---|
1847 | fprintf(vis_stdout, |
---|
1848 | "Shared size of transition function vector is %10ld BDD nodes\n", |
---|
1849 | ImgVectorBddSize(vector)); |
---|
1850 | total = nFuncs * nFuncs; |
---|
1851 | fprintf(vis_stdout, |
---|
1852 | "** tfm info: support distribution (state variables) = %.2f%%(%d out of %d)\n", |
---|
1853 | (float)countStates / (float)total * 100.0, countStates, total); |
---|
1854 | total = nFuncs * nSupports; |
---|
1855 | fprintf(vis_stdout, |
---|
1856 | "** tfm info: support distribution (all variables) = %.2f%% (%d out of %d)\n", |
---|
1857 | (float)count / (float)total * 100.0, count, total); |
---|
1858 | |
---|
1859 | if (verbosity < 3) { |
---|
1860 | FREE(support); |
---|
1861 | return; |
---|
1862 | } |
---|
1863 | |
---|
1864 | fprintf(vis_stdout, "*** function list ***\n"); |
---|
1865 | for (i = 0; i < nFuncs; i++) { |
---|
1866 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
1867 | index = bdd_top_var_id(comp->var); |
---|
1868 | fprintf(vis_stdout, "[%d] index = %d\n", i, index); |
---|
1869 | } |
---|
1870 | |
---|
1871 | start = 0; |
---|
1872 | end = 74; |
---|
1873 | if (end >= nFuncs) |
---|
1874 | end = nFuncs - 1; |
---|
1875 | while (1) { |
---|
1876 | fprintf(vis_stdout, "========================================"); |
---|
1877 | fprintf(vis_stdout, "========================================\n"); |
---|
1878 | fprintf(vis_stdout, " 1234567890123456789012345678901234567890"); |
---|
1879 | fprintf(vis_stdout, "12345678901234567890123456789012345\n"); |
---|
1880 | fprintf(vis_stdout, "----------------------------------------"); |
---|
1881 | fprintf(vis_stdout, "----------------------------------------\n"); |
---|
1882 | for (i = 0; i < info->nVars; i++) { |
---|
1883 | if (!support[i]) |
---|
1884 | continue; |
---|
1885 | if (st_lookup(info->rangeVarsTable, (char *)(long)i, NIL(char *))) |
---|
1886 | continue; |
---|
1887 | for (j = start; j <= end; j++) { |
---|
1888 | comp = array_fetch(ImgComponent_t *, vector, j); |
---|
1889 | if (comp->support[i]) |
---|
1890 | line[j - start] = '1'; |
---|
1891 | else |
---|
1892 | line[j - start] = '.'; |
---|
1893 | } |
---|
1894 | line[j - start] = '\0'; |
---|
1895 | fprintf(vis_stdout, "%4d %s\n", i, line); |
---|
1896 | } |
---|
1897 | if (end >= nFuncs - 1) |
---|
1898 | break; |
---|
1899 | start += 75; |
---|
1900 | end += 75; |
---|
1901 | if (end >= nFuncs) |
---|
1902 | end = nFuncs - 1; |
---|
1903 | } |
---|
1904 | FREE(support); |
---|
1905 | } |
---|
1906 | |
---|
1907 | |
---|
1908 | /**Function******************************************************************** |
---|
1909 | |
---|
1910 | Synopsis [Returns the percent of non-zero elements in dependency matrix.] |
---|
1911 | |
---|
1912 | Description [Returns the percent of non-zero elements in dependency matrix.] |
---|
1913 | |
---|
1914 | SideEffects [] |
---|
1915 | |
---|
1916 | ******************************************************************************/ |
---|
1917 | float |
---|
1918 | ImgPercentVectorDependency(ImgTfmInfo_t *info, array_t *vector, int length, |
---|
1919 | int *nLongs) |
---|
1920 | { |
---|
1921 | int i, j, index, nFuncs, nSupports, nLambdaLatches; |
---|
1922 | int count, total; |
---|
1923 | char *support; |
---|
1924 | ImgComponent_t *comp; |
---|
1925 | float percent; |
---|
1926 | int *occurs; |
---|
1927 | |
---|
1928 | support = ALLOC(char, sizeof(char) * info->nVars); |
---|
1929 | memset(support, 0, sizeof(char) * info->nVars); |
---|
1930 | occurs = ALLOC(int, sizeof(int) * info->nVars); |
---|
1931 | memset(occurs, 0, sizeof(int) * info->nVars); |
---|
1932 | |
---|
1933 | count = 0; |
---|
1934 | nFuncs = array_n(vector); |
---|
1935 | for (i = 0; i < nFuncs; i++) { |
---|
1936 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
1937 | for (j = 0; j < info->nVars; j++) { |
---|
1938 | if (comp->support[j]) { |
---|
1939 | support[j] = 1; |
---|
1940 | count++; |
---|
1941 | occurs[i]++; |
---|
1942 | } |
---|
1943 | } |
---|
1944 | } |
---|
1945 | nSupports = 0; |
---|
1946 | for (i = 0; i < info->nVars; i++) { |
---|
1947 | if (support[i]) |
---|
1948 | nSupports++; |
---|
1949 | } |
---|
1950 | nLambdaLatches = 0; |
---|
1951 | for (i = 0; i < nFuncs; i++) { |
---|
1952 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
1953 | index = bdd_top_var_id(comp->var); |
---|
1954 | if (!support[index]) |
---|
1955 | nLambdaLatches++; |
---|
1956 | } |
---|
1957 | FREE(support); |
---|
1958 | |
---|
1959 | *nLongs = 0; |
---|
1960 | for (i = 0; i < info->nVars; i++) { |
---|
1961 | if (occurs[i] >= length) |
---|
1962 | (*nLongs)++; |
---|
1963 | } |
---|
1964 | |
---|
1965 | total = (nFuncs - nLambdaLatches) * nSupports; |
---|
1966 | percent = (float)count / (float)total * 100.0; |
---|
1967 | return(percent); |
---|
1968 | } |
---|
1969 | |
---|
1970 | |
---|
1971 | /**Function******************************************************************** |
---|
1972 | |
---|
1973 | Synopsis [Writes a gnuplot file with support matrix.] |
---|
1974 | |
---|
1975 | Description [Writes a gnuplot file with support matrix.] |
---|
1976 | |
---|
1977 | SideEffects [] |
---|
1978 | |
---|
1979 | ******************************************************************************/ |
---|
1980 | void |
---|
1981 | ImgWriteSupportMatrix(ImgTfmInfo_t *info, array_t *vector, |
---|
1982 | array_t *relationArray, char *string) |
---|
1983 | { |
---|
1984 | int i, j, id, nFuncs, nRelations, nRows, nSupports; |
---|
1985 | int *row, col, varType; |
---|
1986 | char *support, **relationSupport; |
---|
1987 | ImgComponent_t *comp; |
---|
1988 | FILE *fout; |
---|
1989 | mdd_t *relation, *var; |
---|
1990 | char *filename; |
---|
1991 | |
---|
1992 | support = ALLOC(char, sizeof(char) * info->nVars); |
---|
1993 | memset(support, 0, sizeof(char) * info->nVars); |
---|
1994 | nRows = 0; |
---|
1995 | if (vector) |
---|
1996 | nRows += array_n(vector); |
---|
1997 | if (relationArray) |
---|
1998 | nRows += array_n(relationArray); |
---|
1999 | row = ALLOC(int, sizeof(int) * nRows); |
---|
2000 | if (string) |
---|
2001 | filename = string; |
---|
2002 | else |
---|
2003 | filename = "support.mat"; |
---|
2004 | fout = fopen(filename, "w"); |
---|
2005 | |
---|
2006 | nRows = 0; |
---|
2007 | if (vector) { |
---|
2008 | nFuncs = array_n(vector); |
---|
2009 | for (i = 0; i < nFuncs; i++) { |
---|
2010 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
2011 | if (ImgSupportCount(info, comp->support) == 0) { |
---|
2012 | row[i] = -1; |
---|
2013 | continue; |
---|
2014 | } |
---|
2015 | row[i] = nRows; |
---|
2016 | nRows++; |
---|
2017 | if (info->option->writeSupportMatrixWithYvars) { |
---|
2018 | var = ImgSubstitute(comp->var, info->functionData, Img_D2R_c); |
---|
2019 | id = (int)bdd_top_var_id(var); |
---|
2020 | support[id] = 1; |
---|
2021 | mdd_free(var); |
---|
2022 | } |
---|
2023 | for (j = 0; j < info->nVars; j++) { |
---|
2024 | if (comp->support[j]) |
---|
2025 | support[j] = 1; |
---|
2026 | } |
---|
2027 | } |
---|
2028 | } else |
---|
2029 | nFuncs = 0; |
---|
2030 | |
---|
2031 | relationSupport = 0; |
---|
2032 | if (relationArray && array_n(relationArray) > 0) { |
---|
2033 | comp = ImgComponentAlloc(info); |
---|
2034 | nRelations = 0; |
---|
2035 | relationSupport = ALLOC(char *, sizeof(char *) * array_n(relationArray)); |
---|
2036 | for (i = 0; i < array_n(relationArray); i++) { |
---|
2037 | relation = array_fetch(mdd_t *, relationArray, i); |
---|
2038 | comp->func = relation; |
---|
2039 | ImgSupportClear(info, comp->support); |
---|
2040 | ImgComponentGetSupport(comp); |
---|
2041 | if (ImgSupportCount(info, comp->support) <= 1) { |
---|
2042 | row[i + nFuncs] = -1; |
---|
2043 | relationSupport[i] = NIL(char); |
---|
2044 | continue; |
---|
2045 | } |
---|
2046 | row[i + nFuncs] = nRows; |
---|
2047 | nRows++; |
---|
2048 | for (j = 0; j < info->nVars; j++) { |
---|
2049 | if (comp->support[j]) |
---|
2050 | support[j] = 1; |
---|
2051 | } |
---|
2052 | relationSupport[i] = ALLOC(char, sizeof(char) * info->nVars); |
---|
2053 | memcpy(relationSupport[i], comp->support, sizeof(char) * info->nVars); |
---|
2054 | nRelations++; |
---|
2055 | } |
---|
2056 | comp->func = NIL(mdd_t); |
---|
2057 | ImgComponentFree(comp); |
---|
2058 | } else |
---|
2059 | nRelations = 0; |
---|
2060 | |
---|
2061 | nSupports = 0; |
---|
2062 | for (i = 0; i < info->nVars; i++) { |
---|
2063 | if (support[i]) { |
---|
2064 | if (!info->option->writeSupportMatrixWithYvars && |
---|
2065 | st_lookup(info->rangeVarsTable, (char *)(long)i, NIL(char *))) { |
---|
2066 | continue; |
---|
2067 | } |
---|
2068 | nSupports++; |
---|
2069 | } |
---|
2070 | } |
---|
2071 | |
---|
2072 | col = 0; |
---|
2073 | for (i = 0; i < info->nVars; i++) { |
---|
2074 | if (!support[i]) |
---|
2075 | continue; |
---|
2076 | if (st_lookup(info->rangeVarsTable, (char *)(long)i, NIL(char *))) { |
---|
2077 | if (info->option->writeSupportMatrixWithYvars) |
---|
2078 | varType = 3; |
---|
2079 | else |
---|
2080 | continue; |
---|
2081 | } else if (st_lookup(info->quantifyVarsTable, (char *)(long)i, NIL(char *))) |
---|
2082 | varType = 2; |
---|
2083 | else |
---|
2084 | varType = 1; |
---|
2085 | for (j = 0; j < nFuncs; j++) { |
---|
2086 | comp = array_fetch(ImgComponent_t *, vector, j); |
---|
2087 | if (comp->support[i]) { |
---|
2088 | if (info->option->writeSupportMatrixReverseRow) { |
---|
2089 | if (info->option->writeSupportMatrixReverseCol) { |
---|
2090 | fprintf(fout, "%d %d %d\n", nSupports - col, nRows - row[j], |
---|
2091 | varType); |
---|
2092 | } else |
---|
2093 | fprintf(fout, "%d %d %d\n", col + 1, nRows - row[j], varType); |
---|
2094 | } else { |
---|
2095 | if (info->option->writeSupportMatrixReverseCol) |
---|
2096 | fprintf(fout, "%d %d %d\n", nSupports - col, row[j] + 1, varType); |
---|
2097 | else |
---|
2098 | fprintf(fout, "%d %d %d\n", col + 1, row[j] + 1, varType); |
---|
2099 | } |
---|
2100 | } else if (varType == 3) { |
---|
2101 | var = ImgSubstitute(comp->var, info->functionData, Img_D2R_c); |
---|
2102 | id = (int)bdd_top_var_id(var); |
---|
2103 | mdd_free(var); |
---|
2104 | if (id == i) { |
---|
2105 | if (info->option->writeSupportMatrixReverseRow) { |
---|
2106 | if (info->option->writeSupportMatrixReverseCol) |
---|
2107 | fprintf(fout, "%d %d 3\n", nSupports - col, nRows - row[j]); |
---|
2108 | else |
---|
2109 | fprintf(fout, "%d %d 3\n", col + 1, nRows - row[j]); |
---|
2110 | } else { |
---|
2111 | if (info->option->writeSupportMatrixReverseCol) |
---|
2112 | fprintf(fout, "%d %d 3\n", nSupports - col, row[j] + 1); |
---|
2113 | else |
---|
2114 | fprintf(fout, "%d %d 3\n", col + 1, row[j] + 1); |
---|
2115 | } |
---|
2116 | } |
---|
2117 | } |
---|
2118 | } |
---|
2119 | if (relationArray) { |
---|
2120 | for (j = 0; j < array_n(relationArray); j++) { |
---|
2121 | if (relationSupport[j] && relationSupport[j][i]) { |
---|
2122 | if (info->option->writeSupportMatrixReverseRow) { |
---|
2123 | if (info->option->writeSupportMatrixReverseCol) { |
---|
2124 | fprintf(fout, "%d %d %d\n", nSupports - col, |
---|
2125 | nRows - row[j + nFuncs], varType); |
---|
2126 | } else { |
---|
2127 | fprintf(fout, "%d %d %d\n", col + 1, nRows - row[j + nFuncs], |
---|
2128 | varType); |
---|
2129 | } |
---|
2130 | } else { |
---|
2131 | if (info->option->writeSupportMatrixReverseCol) { |
---|
2132 | fprintf(fout, "%d %d %d\n", nSupports - col, row[j + nFuncs] + 1, |
---|
2133 | varType); |
---|
2134 | } else { |
---|
2135 | fprintf(fout, "%d %d %d\n", col + 1, row[j + nFuncs] + 1, |
---|
2136 | varType); |
---|
2137 | } |
---|
2138 | } |
---|
2139 | } |
---|
2140 | } |
---|
2141 | } |
---|
2142 | col++; |
---|
2143 | } |
---|
2144 | fclose(fout); |
---|
2145 | FREE(support); |
---|
2146 | FREE(row); |
---|
2147 | if (nRelations) { |
---|
2148 | for (i = 0; i < nRelations; i++) |
---|
2149 | FREE(relationSupport[i]); |
---|
2150 | FREE(relationSupport); |
---|
2151 | } |
---|
2152 | } |
---|
2153 | |
---|
2154 | |
---|
2155 | /*---------------------------------------------------------------------------*/ |
---|
2156 | /* Definition of static functions */ |
---|
2157 | /*---------------------------------------------------------------------------*/ |
---|
2158 | |
---|
2159 | |
---|
2160 | /**Function******************************************************************** |
---|
2161 | |
---|
2162 | Synopsis [Comparison function used by qsort.] |
---|
2163 | |
---|
2164 | Description [Comparison function used by qsort to order the |
---|
2165 | variables according to their signatures.] |
---|
2166 | |
---|
2167 | SideEffects [None] |
---|
2168 | |
---|
2169 | ******************************************************************************/ |
---|
2170 | static int |
---|
2171 | SignatureCompare(int *ptrX, int *ptrY) |
---|
2172 | { |
---|
2173 | if (signatures[*ptrY] > signatures[*ptrX]) |
---|
2174 | return(1); |
---|
2175 | if (signatures[*ptrY] < signatures[*ptrX]) |
---|
2176 | return(-1); |
---|
2177 | return(0); |
---|
2178 | } /* end of SignatureCompare */ |
---|
2179 | |
---|
2180 | |
---|
2181 | /**Function******************************************************************** |
---|
2182 | |
---|
2183 | Synopsis [Compares two function BDD pointers of components.] |
---|
2184 | |
---|
2185 | Description [Compares two function BDD pointers of components.] |
---|
2186 | |
---|
2187 | SideEffects [] |
---|
2188 | |
---|
2189 | ******************************************************************************/ |
---|
2190 | static int |
---|
2191 | CompareBddPointer(const void *e1, const void *e2) |
---|
2192 | { |
---|
2193 | ImgComponent_t *c1, *c2; |
---|
2194 | unsigned long ptr1, ptr2; |
---|
2195 | |
---|
2196 | c1 = *((ImgComponent_t **)e1); |
---|
2197 | c2 = *((ImgComponent_t **)e2); |
---|
2198 | |
---|
2199 | ptr1 = (unsigned long)bdd_pointer(c1->func); |
---|
2200 | ptr2 = (unsigned long)bdd_pointer(c2->func); |
---|
2201 | |
---|
2202 | if (ptr1 > ptr2) |
---|
2203 | return(1); |
---|
2204 | else if (ptr1 < ptr2) |
---|
2205 | return(-1); |
---|
2206 | else |
---|
2207 | return(0); |
---|
2208 | } |
---|