[14] | 1 | /**CFile*********************************************************************** |
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| 2 | |
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| 3 | FileName [imgTfmFwd.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 | Description [] |
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| 10 | |
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| 11 | SeeAlso [] |
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| 12 | |
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| 13 | Author [In-Ho Moon] |
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| 14 | |
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| 15 | Copyright [Copyright (c) 1994-1996 The Regents of the Univ. of Colorado. |
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| 16 | All rights reserved. |
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| 17 | |
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| 18 | Permission is hereby granted, without written agreement and without license |
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| 19 | or royalty fees, to use, copy, modify, and distribute this software and its |
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| 20 | documentation for any purpose, provided that the above copyright notice and |
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| 21 | the following two paragraphs appear in all copies of this software. |
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| 22 | |
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| 23 | IN NO EVENT SHALL THE UNIVERSITY OF COLORADO BE LIABLE TO ANY PARTY FOR |
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| 24 | DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT |
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| 25 | OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF |
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| 26 | COLORADO HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | |
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| 28 | THE UNIVERSITY OF COLORADO SPECIFICALLY DISCLAIMS ANY WARRANTIES, |
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| 29 | INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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| 30 | FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN |
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| 31 | "AS IS" BASIS, AND THE UNIVERSITY OF COLORADO HAS NO OBLIGATION TO PROVIDE |
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| 32 | MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.] |
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| 33 | |
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| 34 | ******************************************************************************/ |
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| 35 | #include "imgInt.h" |
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| 36 | |
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| 37 | static char rcsid[] UNUSED = "$Id: imgTfmFwd.c,v 1.37 2005/04/22 19:45:46 jinh Exp $"; |
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| 38 | |
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| 39 | /*---------------------------------------------------------------------------*/ |
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| 40 | /* Constant declarations */ |
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| 41 | /*---------------------------------------------------------------------------*/ |
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| 42 | |
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| 43 | /*---------------------------------------------------------------------------*/ |
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| 44 | /* Type declarations */ |
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| 45 | /*---------------------------------------------------------------------------*/ |
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| 46 | |
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| 47 | /*---------------------------------------------------------------------------*/ |
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| 48 | /* Structure declarations */ |
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| 49 | /*---------------------------------------------------------------------------*/ |
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| 50 | |
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| 51 | /*---------------------------------------------------------------------------*/ |
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| 52 | /* Variable declarations */ |
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| 53 | /*---------------------------------------------------------------------------*/ |
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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 mdd_t * ImageByInputSplit(ImgTfmInfo_t *info, array_t *vector, mdd_t *constraint, mdd_t *from, array_t *relationArray, mdd_t *cofactorCube, mdd_t *abstractCube, int splitMethod, int turnDepth, int depth); |
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| 66 | static mdd_t * ImageByStaticInputSplit(ImgTfmInfo_t *info, array_t *vector, mdd_t *from, array_t *relationArray, int turnDepth, int depth); |
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| 67 | static mdd_t * ImageByOutputSplit(ImgTfmInfo_t *info, array_t *vector, mdd_t *constraint, int depth); |
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| 68 | static int ImageDecomposeAndChooseSplitVar(ImgTfmInfo_t *info, array_t *vector, mdd_t *from, int splitMethod, int split, int piSplitFlag, array_t *vectorArray, array_t *varArray, mdd_t **singles, array_t *relationArray, array_t **newRelationArray, mdd_t **cofactorCube, mdd_t **abstractCube); |
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| 69 | static mdd_t * ImageFast2(ImgTfmInfo_t *info, array_t *vector); |
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| 70 | static int FindDecomposableVariable(ImgTfmInfo_t *info, array_t *vector); |
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| 71 | static int TfmCheckImageValidity(ImgTfmInfo_t *info, mdd_t *image); |
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| 72 | static void FindIntermediateSupport(array_t *vector, ImgComponent_t *comp, int nVars, int nGroups, int *stack, char *stackFlag, int *funcGroup, int *size, char *intermediateVarFlag, int *intermediateVarFuncMap); |
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| 73 | static void PrintVectorDecomposition(ImgTfmInfo_t *info, array_t *vectorArray, array_t *varArray); |
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| 74 | static int CheckIfValidSplitOrGetNew(ImgTfmInfo_t *info, int split, array_t *vector, array_t *relationArray, mdd_t *from); |
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| 75 | static int ChooseInputSplittingVariable(ImgTfmInfo_t *info, array_t *vector, mdd_t *from, int splitMethod, int decompose, int piSplitFlag, int *varOccur); |
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| 76 | static int ChooseOutputSplittingVariable(ImgTfmInfo_t *info, array_t *vector, int splitMethod); |
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| 77 | |
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| 78 | /**AutomaticEnd***************************************************************/ |
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| 79 | |
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| 80 | |
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| 81 | /*---------------------------------------------------------------------------*/ |
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| 82 | /* Definition of exported functions */ |
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| 83 | /*---------------------------------------------------------------------------*/ |
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| 84 | |
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| 85 | |
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| 86 | /*---------------------------------------------------------------------------*/ |
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| 87 | /* Definition of internal functions */ |
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| 88 | /*---------------------------------------------------------------------------*/ |
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| 89 | |
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| 90 | |
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| 91 | /**Function******************************************************************** |
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| 92 | |
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| 93 | Synopsis [Computes an image with transition function method.] |
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| 94 | |
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| 95 | Description [Computes an image with transition function method.] |
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| 96 | |
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| 97 | SideEffects [] |
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| 98 | |
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| 99 | ******************************************************************************/ |
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| 100 | mdd_t * |
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| 101 | ImgTfmImage(ImgTfmInfo_t *info, mdd_t *from) |
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| 102 | { |
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| 103 | mdd_t *res, *r, *cube, *newFrom, *one; |
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| 104 | array_t *newVector, *depVector; |
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| 105 | int splitMethod, turnDepth; |
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| 106 | mdd_t *refResult; |
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| 107 | array_t *relationArray, *newRelationArray, *tmpRelationArray; |
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| 108 | int eliminateDepend; |
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| 109 | int partial, saveUseConstraint; |
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| 110 | long size1, size2; |
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| 111 | mdd_t *cofactorCube, *abstractCube; |
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| 112 | int i, maxDepth, size, nDependVars; |
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| 113 | |
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| 114 | info->maxIntermediateSize = 0; |
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| 115 | if (info->eliminateDepend == 1 || |
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| 116 | (info->eliminateDepend == 2 && info->nPrevEliminatedFwd > 0)) { |
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| 117 | eliminateDepend = 1; |
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| 118 | } else |
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| 119 | eliminateDepend = 0; |
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| 120 | |
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| 121 | saveUseConstraint = info->useConstraint; |
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| 122 | if (info->buildTR) { |
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| 123 | if (eliminateDepend == 0 && |
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| 124 | info->option->splitMethod == 3 && |
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| 125 | info->option->splitMaxDepth < 0 && |
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| 126 | info->option->buildPartialTR == FALSE && |
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| 127 | info->option->rangeComp == 0 && |
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| 128 | info->option->findEssential == FALSE) { |
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| 129 | r = ImgBddLinearAndSmooth(info->manager, from, |
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| 130 | info->fwdClusteredRelationArray, |
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| 131 | info->fwdArraySmoothVarBddArray, |
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| 132 | info->fwdSmoothVarCubeArray, |
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| 133 | info->option->verbosity); |
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| 134 | res = ImgSubstitute(r, info->functionData, Img_R2D_c); |
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| 135 | mdd_free(r); |
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| 136 | return(res); |
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| 137 | } |
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| 138 | relationArray = mdd_array_duplicate(info->fwdClusteredRelationArray); |
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| 139 | } else |
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| 140 | relationArray = NIL(array_t); |
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| 141 | if (info->useConstraint == 1 || |
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| 142 | (info->useConstraint == 2 && |
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| 143 | info->nImageComps == info->option->rangeTryThreshold)) { |
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| 144 | if (info->buildTR == 2) { |
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| 145 | newVector = NIL(array_t); |
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| 146 | cube = mdd_one(info->manager); |
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| 147 | if (eliminateDepend) { |
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| 148 | newFrom = ImgTrmEliminateDependVars(info->functionData, relationArray, |
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| 149 | from, NIL(mdd_t *), &nDependVars); |
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| 150 | if (nDependVars) { |
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| 151 | if (info->option->verbosity > 0) |
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| 152 | (void)fprintf(vis_stdout, "Eliminated %d vars.\n", nDependVars); |
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| 153 | info->averageFoundDependVars = (info->averageFoundDependVars * |
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| 154 | (float)info->nFoundDependVars + (float)nDependVars) / |
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| 155 | (float)(info->nFoundDependVars + 1); |
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| 156 | info->nFoundDependVars++; |
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| 157 | } |
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| 158 | |
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| 159 | info->nPrevEliminatedFwd = nDependVars; |
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| 160 | } else |
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| 161 | newFrom = from; |
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| 162 | cofactorCube = NIL(mdd_t); |
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| 163 | abstractCube = NIL(mdd_t); |
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| 164 | } else { |
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| 165 | newVector = ImgVectorCopy(info, info->vector); |
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| 166 | cube = mdd_one(info->manager); |
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| 167 | if (eliminateDepend) { |
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| 168 | newFrom = ImgTfmEliminateDependVars(info, newVector, relationArray, |
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| 169 | from, NIL(array_t *), NIL(mdd_t *)); |
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| 170 | } else |
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| 171 | newFrom = from; |
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| 172 | if (info->option->delayedSplit && relationArray && info->buildTR != 2) { |
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| 173 | cofactorCube = mdd_one(info->manager); |
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| 174 | abstractCube = mdd_one(info->manager); |
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| 175 | } else { |
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| 176 | cofactorCube = NIL(mdd_t); |
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| 177 | abstractCube = NIL(mdd_t); |
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| 178 | } |
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| 179 | } |
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| 180 | } else { |
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| 181 | if (eliminateDepend) { |
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| 182 | depVector = ImgVectorCopy(info, info->vector); |
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| 183 | newFrom = ImgTfmEliminateDependVars(info, depVector, relationArray, from, |
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| 184 | NIL(array_t *), NIL(mdd_t *)); |
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| 185 | /* constrain delta w.r.t. from here */ |
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| 186 | if (info->option->delayedSplit && relationArray && info->buildTR != 2) { |
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| 187 | ImgVectorConstrain(info, depVector, newFrom, relationArray, |
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| 188 | &newVector, &cube, &newRelationArray, &cofactorCube, |
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| 189 | &abstractCube, FALSE); |
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| 190 | } else if (relationArray) { |
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| 191 | ImgVectorConstrain(info, depVector, newFrom, relationArray, |
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| 192 | &newVector, &cube, NIL(array_t *), &cofactorCube, |
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| 193 | &abstractCube, FALSE); |
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| 194 | newRelationArray = NIL(array_t); |
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| 195 | } else { |
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| 196 | ImgVectorConstrain(info, depVector, newFrom, NIL(array_t), |
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| 197 | &newVector, &cube, NIL(array_t *), NIL(mdd_t *), |
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| 198 | NIL(mdd_t *), FALSE); |
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| 199 | newRelationArray = NIL(array_t); |
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| 200 | cofactorCube = NIL(mdd_t); |
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| 201 | abstractCube = NIL(mdd_t); |
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| 202 | } |
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| 203 | |
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| 204 | if (info->useConstraint == 2) { |
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| 205 | size1 = ImgVectorBddSize(depVector); |
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| 206 | size2 = ImgVectorBddSize(newVector); |
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| 207 | if (info->option->rangeCheckReorder) { |
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| 208 | bdd_reorder(info->manager); |
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| 209 | size1 = ImgVectorBddSize(depVector); |
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| 210 | size2 = ImgVectorBddSize(newVector); |
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| 211 | } |
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| 212 | if (size2 > size1 * info->option->rangeThreshold) { /* cancel */ |
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| 213 | if (info->option->verbosity) |
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| 214 | fprintf(vis_stdout, "** tfm info: canceled range computation.\n"); |
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| 215 | info->useConstraint = 1; |
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| 216 | ImgVectorFree(newVector); |
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| 217 | newVector = depVector; |
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| 218 | mdd_free(cube); |
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| 219 | cube = mdd_one(info->manager); |
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| 220 | if (newRelationArray && newRelationArray != relationArray) |
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| 221 | mdd_array_free(newRelationArray); |
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| 222 | if (cofactorCube) { |
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| 223 | mdd_free(cofactorCube); |
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| 224 | cofactorCube = mdd_one(info->manager); |
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| 225 | } |
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| 226 | if (abstractCube) { |
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| 227 | mdd_free(abstractCube); |
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| 228 | abstractCube = mdd_one(info->manager); |
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| 229 | } |
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| 230 | info->nImageComps++; |
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| 231 | } else { |
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| 232 | info->useConstraint = 0; |
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| 233 | info->nImageComps = 0; |
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| 234 | info->nRangeComps++; |
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| 235 | } |
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| 236 | } |
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| 237 | if (info->useConstraint == 0) |
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| 238 | ImgVectorFree(depVector); |
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| 239 | } else { |
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| 240 | newFrom = from; |
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| 241 | /* constrain delta w.r.t. from here */ |
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| 242 | if (info->option->delayedSplit && relationArray && info->buildTR != 2) { |
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| 243 | ImgVectorConstrain(info, info->vector, newFrom, relationArray, |
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| 244 | &newVector, &cube, &newRelationArray, &cofactorCube, |
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| 245 | &abstractCube, FALSE); |
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| 246 | if (info->option->debug) { |
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| 247 | refResult = ImgImageByHybrid(info, newVector, NIL(mdd_t)); |
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| 248 | res = ImgImageByHybridWithStaticSplit(info, NIL(array_t), NIL(mdd_t), |
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| 249 | newRelationArray, |
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| 250 | cofactorCube, abstractCube); |
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| 251 | assert(mdd_equal(refResult, res)); |
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| 252 | mdd_free(refResult); |
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| 253 | mdd_free(res); |
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| 254 | } |
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| 255 | } else if (relationArray) { |
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| 256 | ImgVectorConstrain(info, info->vector, newFrom, relationArray, |
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| 257 | &newVector, &cube, NIL(array_t *), &cofactorCube, |
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| 258 | &abstractCube, FALSE); |
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| 259 | newRelationArray = NIL(array_t); |
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| 260 | } else { |
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| 261 | ImgVectorConstrain(info, info->vector, newFrom, NIL(array_t), |
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| 262 | &newVector, &cube, NIL(array_t *), NIL(mdd_t *), |
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| 263 | NIL(mdd_t *), FALSE); |
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| 264 | newRelationArray = NIL(array_t); |
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| 265 | cofactorCube = NIL(mdd_t); |
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| 266 | abstractCube = NIL(mdd_t); |
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| 267 | } |
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| 268 | |
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| 269 | if (info->useConstraint == 2) { |
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| 270 | size1 = ImgVectorBddSize(info->vector); |
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| 271 | size2 = ImgVectorBddSize(newVector); |
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| 272 | if (info->option->rangeCheckReorder) { |
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| 273 | bdd_reorder(info->manager); |
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| 274 | size1 = ImgVectorBddSize(info->vector); |
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| 275 | size2 = ImgVectorBddSize(newVector); |
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| 276 | } |
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| 277 | if (size2 > size1 * info->option->rangeThreshold) { /* cancel */ |
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| 278 | if (info->option->verbosity) |
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| 279 | fprintf(vis_stdout, "** tfm info: canceled range computation.\n"); |
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| 280 | info->useConstraint = 1; |
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| 281 | ImgVectorFree(newVector); |
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| 282 | newVector = info->vector; |
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| 283 | mdd_free(cube); |
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| 284 | cube = mdd_one(info->manager); |
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| 285 | if (newRelationArray && newRelationArray != relationArray) |
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| 286 | mdd_array_free(newRelationArray); |
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| 287 | if (cofactorCube) { |
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| 288 | mdd_free(cofactorCube); |
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| 289 | cofactorCube = mdd_one(info->manager); |
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| 290 | } |
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| 291 | if (abstractCube) { |
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| 292 | mdd_free(abstractCube); |
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| 293 | abstractCube = mdd_one(info->manager); |
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| 294 | } |
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| 295 | info->nImageComps++; |
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| 296 | } else { |
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| 297 | info->useConstraint = 0; |
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| 298 | info->nImageComps = 0; |
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| 299 | info->nRangeComps++; |
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| 300 | } |
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| 301 | } |
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| 302 | } |
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| 303 | if (info->useConstraint == 0 && relationArray) { |
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| 304 | if (!newRelationArray) { |
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| 305 | if (bdd_is_tautology(cofactorCube, 1) && |
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| 306 | bdd_is_tautology(abstractCube, 1)) { |
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| 307 | newRelationArray = ImgGetConstrainedRelationArray(info, relationArray, |
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| 308 | newFrom); |
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| 309 | } else { |
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| 310 | tmpRelationArray = ImgGetConstrainedRelationArray(info, relationArray, |
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| 311 | newFrom); |
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| 312 | newRelationArray = ImgGetCofactoredAbstractedRelationArray( |
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| 313 | info->manager, tmpRelationArray, |
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| 314 | cofactorCube, abstractCube); |
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| 315 | if (info->option->debug) { |
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| 316 | array_t *tmpVector; |
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| 317 | |
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| 318 | tmpVector = ImgGetConstrainedVector(info, info->vector, newFrom); |
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| 319 | if (info->option->checkEquivalence) { |
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| 320 | assert(ImgCheckEquivalence(info, tmpVector, tmpRelationArray, |
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| 321 | NIL(mdd_t), NIL(mdd_t), 0)); |
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| 322 | } |
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| 323 | refResult = ImgImageByHybrid(info, tmpVector, NIL(mdd_t)); |
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| 324 | ImgVectorFree(tmpVector); |
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| 325 | res = ImgImageByHybridWithStaticSplit(info, NIL(array_t), |
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| 326 | NIL(mdd_t), |
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| 327 | tmpRelationArray, |
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| 328 | NIL(mdd_t), NIL(mdd_t)); |
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| 329 | assert(mdd_equal(refResult, res)); |
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| 330 | mdd_free(refResult); |
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| 331 | mdd_free(res); |
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| 332 | } |
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| 333 | mdd_array_free(tmpRelationArray); |
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| 334 | } |
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| 335 | mdd_free(cofactorCube); |
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| 336 | cofactorCube = NIL(mdd_t); |
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| 337 | mdd_free(abstractCube); |
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| 338 | abstractCube = NIL(mdd_t); |
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| 339 | if (info->option->debug) { |
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| 340 | refResult = ImgImageByHybrid(info, newVector, NIL(mdd_t)); |
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| 341 | res = ImgImageByHybridWithStaticSplit(info, NIL(array_t), NIL(mdd_t), |
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| 342 | newRelationArray, |
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| 343 | NIL(mdd_t), NIL(mdd_t)); |
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| 344 | assert(mdd_equal(refResult, res)); |
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| 345 | mdd_free(refResult); |
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| 346 | mdd_free(res); |
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| 347 | |
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| 348 | if (info->nIntermediateVars) { |
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| 349 | mdd_t *tmp; |
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| 350 | |
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| 351 | refResult = ImgImageByHybrid(info, info->vector, newFrom); |
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| 352 | res = ImgImageByHybridWithStaticSplit(info, NIL(array_t), newFrom, |
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| 353 | relationArray, |
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| 354 | NIL(mdd_t), NIL(mdd_t)); |
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| 355 | assert(mdd_equal(refResult, res)); |
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| 356 | mdd_free(res); |
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| 357 | tmp = ImgImageByHybrid(info, newVector, NIL(mdd_t)); |
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| 358 | res = mdd_and(tmp, cube, 1, 1); |
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| 359 | if (info->option->verbosity) { |
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| 360 | size = bdd_size(res); |
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| 361 | if (size > info->maxIntermediateSize) |
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| 362 | info->maxIntermediateSize = size; |
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| 363 | if (info->option->printBddSize) { |
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| 364 | fprintf(vis_stdout, "** tfm info: bdd_and(%d,%d) = %d\n", |
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| 365 | bdd_size(tmp), bdd_size(cube), size); |
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| 366 | } |
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| 367 | } |
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| 368 | mdd_free(tmp); |
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| 369 | assert(mdd_equal(refResult, res)); |
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| 370 | mdd_free(refResult); |
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| 371 | mdd_free(res); |
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| 372 | } |
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| 373 | } |
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| 374 | } |
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| 375 | if (relationArray != newRelationArray) { |
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| 376 | mdd_array_free(relationArray); |
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| 377 | relationArray = newRelationArray; |
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| 378 | } |
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| 379 | } |
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| 380 | if (info->option->checkEquivalence) { |
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| 381 | assert(ImgCheckEquivalence(info, newVector, newRelationArray, |
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| 382 | NIL(mdd_t), NIL(mdd_t), 0)); |
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| 383 | } |
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| 384 | } |
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| 385 | partial = 0; |
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| 386 | one = mdd_one(info->manager); |
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| 387 | splitMethod = info->option->splitMethod; |
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| 388 | if (splitMethod == 0) { |
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| 389 | r = ImageByInputSplit(info, newVector, one, newFrom, NIL(array_t), |
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| 390 | NIL(mdd_t), NIL(mdd_t), 0, 0, 0); |
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| 391 | } else if (splitMethod == 1) |
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| 392 | r = ImageByOutputSplit(info, newVector, one, 0); |
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| 393 | else { |
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| 394 | if (info->option->splitMethod == 0) |
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| 395 | turnDepth = info->nVars + 1; |
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| 396 | else |
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| 397 | turnDepth = info->option->turnDepth; |
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| 398 | if (turnDepth == 0) { |
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| 399 | if (splitMethod == 2) |
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| 400 | r = ImageByOutputSplit(info, newVector, one, 0); |
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| 401 | else { |
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| 402 | if (info->useConstraint && info->buildTR == 2) { |
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| 403 | if (info->buildPartialTR) { |
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| 404 | r = ImgImageByHybridWithStaticSplit(info, newVector, newFrom, |
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| 405 | relationArray, |
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| 406 | NIL(mdd_t), NIL(mdd_t)); |
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| 407 | } else { |
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| 408 | r = ImgImageByHybridWithStaticSplit(info, NIL(array_t), newFrom, |
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| 409 | relationArray, |
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| 410 | NIL(mdd_t), NIL(mdd_t)); |
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| 411 | } |
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| 412 | } else |
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| 413 | r = ImgImageByHybrid(info, newVector, newFrom); |
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| 414 | } |
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| 415 | } else if (splitMethod == 2) { |
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| 416 | r = ImageByInputSplit(info, newVector, one, newFrom, NIL(array_t), |
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| 417 | NIL(mdd_t), NIL(mdd_t), |
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| 418 | splitMethod, turnDepth, 0); |
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| 419 | } else { |
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| 420 | if (info->useConstraint) { |
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| 421 | if (info->buildTR) { |
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| 422 | if (info->buildTR == 2) { |
---|
| 423 | if (info->buildPartialTR) { |
---|
| 424 | r = ImageByStaticInputSplit(info, newVector, newFrom, |
---|
| 425 | relationArray, turnDepth, 0); |
---|
| 426 | partial = 1; |
---|
| 427 | } else { |
---|
| 428 | r = ImageByStaticInputSplit(info, NIL(array_t), newFrom, |
---|
| 429 | relationArray, turnDepth, 0); |
---|
| 430 | } |
---|
| 431 | } else if (info->option->delayedSplit) { |
---|
| 432 | r = ImageByInputSplit(info, newVector, one, newFrom, relationArray, |
---|
| 433 | cofactorCube, abstractCube, |
---|
| 434 | splitMethod, turnDepth, 0); |
---|
| 435 | } else { |
---|
| 436 | r = ImageByInputSplit(info, newVector, one, newFrom, relationArray, |
---|
| 437 | NIL(mdd_t), NIL(mdd_t), |
---|
| 438 | splitMethod, turnDepth, 0); |
---|
| 439 | } |
---|
| 440 | } else { |
---|
| 441 | r = ImageByInputSplit(info, newVector, one, newFrom, NIL(array_t), |
---|
| 442 | NIL(mdd_t), NIL(mdd_t), |
---|
| 443 | splitMethod, turnDepth, 0); |
---|
| 444 | } |
---|
| 445 | } else if (info->buildTR == 1 && info->option->delayedSplit) { |
---|
| 446 | r = ImageByInputSplit(info, newVector, one, NIL(mdd_t), relationArray, |
---|
| 447 | cofactorCube, abstractCube, |
---|
| 448 | splitMethod, turnDepth, 0); |
---|
| 449 | } else { |
---|
| 450 | r = ImageByInputSplit(info, newVector, one, NIL(mdd_t), relationArray, |
---|
| 451 | NIL(mdd_t), NIL(mdd_t), |
---|
| 452 | splitMethod, turnDepth, 0); |
---|
| 453 | } |
---|
| 454 | } |
---|
| 455 | } |
---|
| 456 | info->useConstraint = saveUseConstraint; |
---|
| 457 | if (relationArray && |
---|
| 458 | !(info->option->debug && (partial || info->buildTR == 2))) { |
---|
| 459 | mdd_array_free(relationArray); |
---|
| 460 | } |
---|
| 461 | if (info->imgCache && info->option->autoFlushCache == 1) |
---|
| 462 | ImgFlushCache(info->imgCache); |
---|
| 463 | mdd_free(one); |
---|
| 464 | if (cofactorCube) |
---|
| 465 | mdd_free(cofactorCube); |
---|
| 466 | if (abstractCube) |
---|
| 467 | mdd_free(abstractCube); |
---|
| 468 | if (newFrom && newFrom != from) |
---|
| 469 | mdd_free(newFrom); |
---|
| 470 | res = bdd_and(r, cube, 1, 1); |
---|
| 471 | if (info->option->verbosity) { |
---|
| 472 | size = bdd_size(res); |
---|
| 473 | if (size > info->maxIntermediateSize) |
---|
| 474 | info->maxIntermediateSize = size; |
---|
| 475 | if (info->option->printBddSize) { |
---|
| 476 | fprintf(vis_stdout, "** tfm info: bdd_and(%d,%d) = %d\n", |
---|
| 477 | bdd_size(r), bdd_size(cube), size); |
---|
| 478 | } |
---|
| 479 | } |
---|
| 480 | mdd_free(r); |
---|
| 481 | mdd_free(cube); |
---|
| 482 | if (newVector != info->vector) |
---|
| 483 | ImgVectorFree(newVector); |
---|
| 484 | |
---|
| 485 | if (info->option->debug) { |
---|
| 486 | if (info->buildTR == 2) { |
---|
| 487 | refResult = ImgImageByHybridWithStaticSplit(info, NIL(array_t), from, |
---|
| 488 | relationArray, |
---|
| 489 | NIL(mdd_t), NIL(mdd_t)); |
---|
| 490 | mdd_array_free(relationArray); |
---|
| 491 | } else { |
---|
| 492 | if (partial) { |
---|
| 493 | refResult = ImgImageByHybrid(info, info->fullVector, from); |
---|
| 494 | assert(mdd_equal(refResult, res)); |
---|
| 495 | mdd_free(refResult); |
---|
| 496 | refResult = ImgImageByHybridWithStaticSplit(info, info->vector, from, |
---|
| 497 | relationArray, |
---|
| 498 | NIL(mdd_t), NIL(mdd_t)); |
---|
| 499 | mdd_array_free(relationArray); |
---|
| 500 | } else |
---|
| 501 | refResult = ImgImageByHybrid(info, info->vector, from); |
---|
| 502 | } |
---|
| 503 | assert(mdd_equal(refResult, res)); |
---|
| 504 | mdd_free(refResult); |
---|
| 505 | } |
---|
| 506 | if (info->option->findEssential) |
---|
| 507 | info->lastFoundEssentialDepth = info->foundEssentialDepth; |
---|
| 508 | if (info->option->printEssential == 2) { |
---|
| 509 | maxDepth = info->maxDepth < IMG_TF_MAX_PRINT_DEPTH ? |
---|
| 510 | info->maxDepth : IMG_TF_MAX_PRINT_DEPTH; |
---|
| 511 | fprintf(vis_stdout, "foundEssential:"); |
---|
| 512 | for (i = 0; i < maxDepth; i++) |
---|
| 513 | fprintf(vis_stdout, " [%d]%d", i, info->foundEssentials[i]); |
---|
| 514 | fprintf(vis_stdout, "\n"); |
---|
| 515 | } |
---|
| 516 | if (info->option->verbosity) { |
---|
| 517 | fprintf(vis_stdout, "** tfm info: max intermediate BDD size = %d\n", |
---|
| 518 | info->maxIntermediateSize); |
---|
| 519 | } |
---|
| 520 | if (info->option->debug) |
---|
| 521 | assert(TfmCheckImageValidity(info, res)); |
---|
| 522 | return(res); |
---|
| 523 | } |
---|
| 524 | |
---|
| 525 | |
---|
| 526 | /**Function******************************************************************** |
---|
| 527 | |
---|
| 528 | Synopsis [Chooses splitting variables for static splitting.] |
---|
| 529 | |
---|
| 530 | Description [Chooses splitting variables for static splitting.] |
---|
| 531 | |
---|
| 532 | SideEffects [] |
---|
| 533 | |
---|
| 534 | ******************************************************************************/ |
---|
| 535 | mdd_t * |
---|
| 536 | ImgChooseTrSplitVar(ImgTfmInfo_t *info, array_t *vector, |
---|
| 537 | array_t *relationArray, int trSplitMethod, int piSplitFlag) |
---|
| 538 | { |
---|
| 539 | int i, j, nVars; |
---|
| 540 | ImgComponent_t *comp; |
---|
| 541 | char *support; |
---|
| 542 | int *varCost, bestCost = 0; |
---|
| 543 | int id, split; |
---|
| 544 | mdd_t *var, *relation; |
---|
| 545 | |
---|
| 546 | nVars = info->nVars; |
---|
| 547 | varCost = ALLOC(int, nVars); |
---|
| 548 | memset(varCost, 0, sizeof(int) * nVars); |
---|
| 549 | |
---|
| 550 | if (trSplitMethod == 0) { |
---|
| 551 | if (vector) { |
---|
| 552 | for (i = 0; i < array_n(vector); i++) { |
---|
| 553 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
| 554 | support = comp->support; |
---|
| 555 | for (j = 0; j < nVars; j++) { |
---|
| 556 | if (support[j]) |
---|
| 557 | varCost[j]++; |
---|
| 558 | } |
---|
| 559 | } |
---|
| 560 | } |
---|
| 561 | comp = ImgComponentAlloc(info); |
---|
| 562 | support = comp->support; |
---|
| 563 | for (i = 0; i < array_n(relationArray); i++) { |
---|
| 564 | relation = array_fetch(mdd_t *, relationArray, i); |
---|
| 565 | comp->func = relation; |
---|
| 566 | ImgSupportClear(info, comp->support); |
---|
| 567 | ImgComponentGetSupport(comp); |
---|
| 568 | for (j = 0; j < nVars; j++) { |
---|
| 569 | if (support[j]) |
---|
| 570 | varCost[j]++; |
---|
| 571 | } |
---|
| 572 | } |
---|
| 573 | comp->func = NIL(mdd_t); |
---|
| 574 | ImgComponentFree(comp); |
---|
| 575 | } else { |
---|
| 576 | for (i = 0; i < array_n(info->domainVarBddArray); i++) { |
---|
| 577 | var = array_fetch(mdd_t *, info->domainVarBddArray, i); |
---|
| 578 | id = (int)bdd_top_var_id(var); |
---|
| 579 | if (vector) { |
---|
| 580 | for (j = 0; j < array_n(vector); j++) { |
---|
| 581 | comp = array_fetch(ImgComponent_t *, vector, j); |
---|
| 582 | varCost[id] += bdd_estimate_cofactor(comp->func, var, 1); |
---|
| 583 | varCost[id] += bdd_estimate_cofactor(comp->func, var, 0); |
---|
| 584 | } |
---|
| 585 | } |
---|
| 586 | for (j = 0; j < array_n(relationArray); j++) { |
---|
| 587 | relation = array_fetch(mdd_t *, relationArray, j); |
---|
| 588 | varCost[id] += bdd_estimate_cofactor(relation, var, 1); |
---|
| 589 | varCost[id] += bdd_estimate_cofactor(relation, var, 0); |
---|
| 590 | } |
---|
| 591 | varCost[id] = IMG_TF_MAX_INT - varCost[id]; |
---|
| 592 | } |
---|
| 593 | } |
---|
| 594 | |
---|
| 595 | split = -1; |
---|
| 596 | for (i = 0; i < nVars; i++) { |
---|
| 597 | if (varCost[i] == 0) |
---|
| 598 | continue; |
---|
| 599 | if (!piSplitFlag) { |
---|
| 600 | if (st_lookup(info->quantifyVarsTable, (char *)(long)i, NIL(char *))) |
---|
| 601 | continue; |
---|
| 602 | } |
---|
| 603 | if (st_lookup(info->rangeVarsTable, (char *)(long)i, NIL(char *))) |
---|
| 604 | continue; |
---|
| 605 | if (info->intermediateVarsTable && |
---|
| 606 | st_lookup(info->intermediateVarsTable, (char *)(long)i, NIL(char *))) { |
---|
| 607 | continue; |
---|
| 608 | } |
---|
| 609 | |
---|
| 610 | if (split == -1 || varCost[i] > bestCost) { |
---|
| 611 | bestCost = varCost[i]; |
---|
| 612 | split = i; |
---|
| 613 | } |
---|
| 614 | } |
---|
| 615 | FREE(varCost); |
---|
| 616 | if (split == -1) |
---|
| 617 | return(NIL(mdd_t)); |
---|
| 618 | var = bdd_var_with_index(info->manager, split); |
---|
| 619 | return(var); |
---|
| 620 | } |
---|
| 621 | |
---|
| 622 | |
---|
| 623 | /*---------------------------------------------------------------------------*/ |
---|
| 624 | /* Definition of static functions */ |
---|
| 625 | /*---------------------------------------------------------------------------*/ |
---|
| 626 | |
---|
| 627 | |
---|
| 628 | /**Function******************************************************************** |
---|
| 629 | |
---|
| 630 | Synopsis [Computes an image by input splitting.] |
---|
| 631 | |
---|
| 632 | Description [Computes an image by input splitting.] |
---|
| 633 | |
---|
| 634 | SideEffects [] |
---|
| 635 | |
---|
| 636 | ******************************************************************************/ |
---|
| 637 | static mdd_t * |
---|
| 638 | ImageByInputSplit(ImgTfmInfo_t *info, array_t *vector, mdd_t *constraint, |
---|
| 639 | mdd_t *from, array_t *relationArray, mdd_t *cofactorCube, |
---|
| 640 | mdd_t *abstractCube, int splitMethod, int turnDepth, |
---|
| 641 | int depth) |
---|
| 642 | { |
---|
| 643 | array_t *newVector, *tmpVector; |
---|
| 644 | mdd_t *new_, *resT, *resE, *res, *resPart, *resTmp; |
---|
| 645 | mdd_t *var, *varNot, *cube, *tmp, *func; |
---|
| 646 | int size, i, j, k, vectorSize; |
---|
| 647 | array_t *vectorArray, *varArray; |
---|
| 648 | int hit, turnFlag; |
---|
| 649 | int split, nGroups, cubeSize; |
---|
| 650 | mdd_t *refResult, *product; |
---|
| 651 | mdd_t *newFrom, *fromT, *fromE; |
---|
| 652 | ImgComponent_t *comp; |
---|
| 653 | array_t *relationArrayT, *relationArrayE, *partRelationArray; |
---|
| 654 | int constConstrain; |
---|
| 655 | int nRecur; |
---|
| 656 | array_t *newRelationArray, *tmpRelationArray, *abstractVars; |
---|
| 657 | mdd_t *cofactor, *abstract; |
---|
| 658 | mdd_t *newCofactorCube, *newAbstractCube; |
---|
| 659 | mdd_t *partCofactorCube, *partAbstractCube; |
---|
| 660 | mdd_t *cofactorCubeT, *cofactorCubeE; |
---|
| 661 | mdd_t *abstractCubeT, *abstractCubeE; |
---|
| 662 | mdd_t *essentialCube, *tmpRes; |
---|
| 663 | int findEssential; |
---|
| 664 | int foundEssentialDepth; |
---|
| 665 | int foundEssentialDepthT, foundEssentialDepthE; |
---|
| 666 | array_t *vectorT, *vectorE; |
---|
| 667 | mdd_t *andT, *andE, *one; |
---|
| 668 | float prevLambda; |
---|
| 669 | int prevTotal, prevVectorBddSize, prevVectorSize; |
---|
| 670 | int arraySize, nFuncs; |
---|
| 671 | |
---|
| 672 | newRelationArray = NIL(array_t); |
---|
| 673 | |
---|
| 674 | if (info->option->delayedSplit && relationArray) { |
---|
| 675 | ImgVectorConstrain(info, vector, constraint, relationArray, |
---|
| 676 | &newVector, &res, &newRelationArray, |
---|
| 677 | &cofactor, &abstract, TRUE); |
---|
| 678 | newCofactorCube = mdd_and(cofactorCube, cofactor, 1, 1); |
---|
| 679 | mdd_free(cofactor); |
---|
| 680 | newAbstractCube = mdd_and(abstractCube, abstract, 1, 1); |
---|
| 681 | mdd_free(abstract); |
---|
| 682 | if (info->option->debug) { |
---|
| 683 | refResult = ImgImageByHybrid(info, newVector, from); |
---|
| 684 | resPart = ImgImageByHybridWithStaticSplit(info, NIL(array_t), from, |
---|
| 685 | newRelationArray, |
---|
| 686 | newCofactorCube, |
---|
| 687 | newAbstractCube); |
---|
| 688 | assert(mdd_equal(refResult, resPart)); |
---|
| 689 | mdd_free(refResult); |
---|
| 690 | mdd_free(resPart); |
---|
| 691 | } |
---|
| 692 | } else { |
---|
| 693 | ImgVectorConstrain(info, vector, constraint, relationArray, |
---|
| 694 | &newVector, &res, &newRelationArray, |
---|
| 695 | NIL(mdd_t *), NIL(mdd_t *), TRUE); |
---|
| 696 | newCofactorCube = NIL(mdd_t); |
---|
| 697 | newAbstractCube = NIL(mdd_t); |
---|
| 698 | if (info->option->debug) { |
---|
| 699 | refResult = ImgImageByHybrid(info, newVector, from); |
---|
| 700 | resPart = ImgImageByHybridWithStaticSplit(info, NIL(array_t), from, |
---|
| 701 | newRelationArray, |
---|
| 702 | NIL(mdd_t), NIL(mdd_t)); |
---|
| 703 | assert(mdd_equal(refResult, resPart)); |
---|
| 704 | mdd_free(refResult); |
---|
| 705 | |
---|
| 706 | refResult = ImgImageByHybridWithStaticSplit(info, NIL(array_t), from, |
---|
| 707 | relationArray, |
---|
| 708 | NIL(mdd_t), NIL(mdd_t)); |
---|
| 709 | resTmp = mdd_and(resPart, res, 1, 1); |
---|
| 710 | mdd_free(resPart); |
---|
| 711 | assert(mdd_equal(refResult, resTmp)); |
---|
| 712 | mdd_free(refResult); |
---|
| 713 | mdd_free(resTmp); |
---|
| 714 | } |
---|
| 715 | } |
---|
| 716 | |
---|
| 717 | if (info->option->checkEquivalence && |
---|
| 718 | relationArray && !info->option->buildPartialTR) { |
---|
| 719 | assert(ImgCheckEquivalence(info, newVector, newRelationArray, |
---|
| 720 | newCofactorCube, newAbstractCube, 0)); |
---|
| 721 | } |
---|
| 722 | |
---|
| 723 | if (from && info->option->findEssential) { |
---|
| 724 | if (info->option->findEssential == 1) |
---|
| 725 | findEssential = 1; |
---|
| 726 | else { |
---|
| 727 | if (depth >= info->lastFoundEssentialDepth) |
---|
| 728 | findEssential = 1; |
---|
| 729 | else |
---|
| 730 | findEssential = 0; |
---|
| 731 | } |
---|
| 732 | } else |
---|
| 733 | findEssential = 0; |
---|
| 734 | if (findEssential) { |
---|
| 735 | essentialCube = bdd_find_essential_cube(from); |
---|
| 736 | |
---|
| 737 | if (!bdd_is_tautology(essentialCube, 1)) { |
---|
| 738 | info->averageFoundEssential = (info->averageFoundEssential * |
---|
| 739 | (float)info->nFoundEssentials + (float)(bdd_size(essentialCube) - 1)) / |
---|
| 740 | (float)(info->nFoundEssentials + 1); |
---|
| 741 | info->averageFoundEssentialDepth = (info->averageFoundEssentialDepth * |
---|
| 742 | (float)info->nFoundEssentials + (float)depth) / |
---|
| 743 | (float)(info->nFoundEssentials + 1); |
---|
| 744 | if (info->nFoundEssentials == 0 || depth < info->topFoundEssentialDepth) |
---|
| 745 | info->topFoundEssentialDepth = depth; |
---|
| 746 | info->nFoundEssentials++; |
---|
| 747 | if (info->option->printEssential && depth < IMG_TF_MAX_PRINT_DEPTH) |
---|
| 748 | info->foundEssentials[depth]++; |
---|
| 749 | tmpVector = newVector; |
---|
| 750 | tmpRelationArray = newRelationArray; |
---|
| 751 | if (info->option->delayedSplit && relationArray) { |
---|
| 752 | ImgVectorMinimize(info, tmpVector, essentialCube, NIL(mdd_t), |
---|
| 753 | tmpRelationArray, &newVector, &tmpRes, |
---|
| 754 | &newRelationArray, &cofactor, &abstract); |
---|
| 755 | tmp = newCofactorCube; |
---|
| 756 | newCofactorCube = mdd_and(tmp, cofactor, 1, 1); |
---|
| 757 | mdd_free(tmp); |
---|
| 758 | mdd_free(cofactor); |
---|
| 759 | tmp = newAbstractCube; |
---|
| 760 | newAbstractCube = mdd_and(tmp, abstract, 1, 1); |
---|
| 761 | mdd_free(tmp); |
---|
| 762 | mdd_free(abstract); |
---|
| 763 | } else { |
---|
| 764 | ImgVectorMinimize(info, tmpVector, essentialCube, NIL(mdd_t), |
---|
| 765 | tmpRelationArray, &newVector, &tmpRes, |
---|
| 766 | &newRelationArray, NIL(mdd_t *), NIL(mdd_t *)); |
---|
| 767 | } |
---|
| 768 | tmp = res; |
---|
| 769 | res = mdd_and(tmp, tmpRes, 1, 1); |
---|
| 770 | mdd_free(tmp); |
---|
| 771 | ImgVectorFree(tmpVector); |
---|
| 772 | if (tmpRelationArray && tmpRelationArray != relationArray && |
---|
| 773 | tmpRelationArray != newRelationArray) |
---|
| 774 | mdd_array_free(tmpRelationArray); |
---|
| 775 | foundEssentialDepth = depth; |
---|
| 776 | } else |
---|
| 777 | foundEssentialDepth = info->option->maxEssentialDepth; |
---|
| 778 | mdd_free(essentialCube); |
---|
| 779 | foundEssentialDepthT = info->option->maxEssentialDepth; |
---|
| 780 | foundEssentialDepthE = info->option->maxEssentialDepth; |
---|
| 781 | } else { |
---|
| 782 | /* To remove compiler warnings */ |
---|
| 783 | foundEssentialDepth = -1; |
---|
| 784 | foundEssentialDepthT = -1; |
---|
| 785 | foundEssentialDepthE = -1; |
---|
| 786 | } |
---|
| 787 | |
---|
| 788 | if (info->option->debug) { |
---|
| 789 | if (relationArray && from) { |
---|
| 790 | refResult = ImgImageByHybrid(info, newVector, from); |
---|
| 791 | resPart = ImgImageByHybridWithStaticSplit(info, NIL(array_t), from, |
---|
| 792 | newRelationArray, |
---|
| 793 | newCofactorCube, |
---|
| 794 | newAbstractCube); |
---|
| 795 | assert(mdd_equal(refResult, resPart)); |
---|
| 796 | mdd_free(refResult); |
---|
| 797 | mdd_free(resPart); |
---|
| 798 | } |
---|
| 799 | } |
---|
| 800 | |
---|
| 801 | info->nRecursion++; |
---|
| 802 | arraySize = array_n(newVector); |
---|
| 803 | if (info->nIntermediateVars) |
---|
| 804 | nFuncs = ImgVectorFunctionSize(newVector); |
---|
| 805 | else |
---|
| 806 | nFuncs = arraySize; |
---|
| 807 | if (nFuncs <= 1) { |
---|
| 808 | if (info->useConstraint) { |
---|
| 809 | if (nFuncs == 1) { |
---|
| 810 | comp = array_fetch(ImgComponent_t *, newVector, 0); |
---|
| 811 | if (arraySize > 1) |
---|
| 812 | func = ImgGetComposedFunction(newVector); |
---|
| 813 | else |
---|
| 814 | func = comp->func; |
---|
| 815 | if (mdd_lequal(from, func, 1, 1)) { /* func | from = 1 */ |
---|
| 816 | tmp = res; |
---|
| 817 | res = mdd_and(tmp, comp->var, 1, 1); |
---|
| 818 | mdd_free(tmp); |
---|
| 819 | } else if (mdd_lequal(func, from, 1, 0)) { /* func | from = 0 */ |
---|
| 820 | tmp = res; |
---|
| 821 | res = mdd_and(tmp, comp->var, 1, 0); |
---|
| 822 | mdd_free(tmp); |
---|
| 823 | } |
---|
| 824 | if (arraySize > 1) |
---|
| 825 | mdd_free(func); |
---|
| 826 | } |
---|
| 827 | } |
---|
| 828 | if (relationArray && newRelationArray != relationArray) |
---|
| 829 | mdd_array_free(newRelationArray); |
---|
| 830 | if (newCofactorCube) |
---|
| 831 | mdd_free(newCofactorCube); |
---|
| 832 | if (newAbstractCube) |
---|
| 833 | mdd_free(newAbstractCube); |
---|
| 834 | ImgVectorFree(newVector); |
---|
| 835 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 836 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 837 | if (depth > info->maxDepth) |
---|
| 838 | info->maxDepth = depth; |
---|
| 839 | info->nLeaves++; |
---|
| 840 | if (findEssential) |
---|
| 841 | info->foundEssentialDepth = foundEssentialDepth; |
---|
| 842 | if (info->option->debug) |
---|
| 843 | assert(TfmCheckImageValidity(info, res)); |
---|
| 844 | return(res); |
---|
| 845 | } |
---|
| 846 | |
---|
| 847 | turnFlag = 0; |
---|
| 848 | if (splitMethod == 3 && turnDepth == -1) { |
---|
| 849 | if (depth < info->option->splitMinDepth) { |
---|
| 850 | info->nSplits++; |
---|
| 851 | turnFlag = 0; |
---|
| 852 | } else if (depth > info->option->splitMaxDepth) { |
---|
| 853 | info->nConjoins++; |
---|
| 854 | turnFlag = 1; |
---|
| 855 | } else { |
---|
| 856 | turnFlag = ImgDecideSplitOrConjoin(info, newVector, from, 0, |
---|
| 857 | newRelationArray, newCofactorCube, |
---|
| 858 | newAbstractCube, 0, depth); |
---|
| 859 | } |
---|
| 860 | } else { |
---|
| 861 | if (splitMethod != 0) { |
---|
| 862 | if (depth == turnDepth) |
---|
| 863 | turnFlag = 1; |
---|
| 864 | } |
---|
| 865 | } |
---|
| 866 | if (turnFlag || nFuncs == 2) { |
---|
| 867 | hit = 1; |
---|
| 868 | if (!info->imgCache || |
---|
| 869 | !(resPart = ImgCacheLookupTable(info, info->imgCache, newVector, |
---|
| 870 | from))) { |
---|
| 871 | hit = 0; |
---|
| 872 | if (nFuncs == 2) { |
---|
| 873 | if (info->useConstraint) { |
---|
| 874 | ImgVectorConstrain(info, newVector, from, NIL(array_t), |
---|
| 875 | &tmpVector, &resTmp, NIL(array_t *), |
---|
| 876 | NIL(mdd_t *), NIL(mdd_t *), FALSE); |
---|
| 877 | if (array_n(tmpVector) <= 1) |
---|
| 878 | resPart = resTmp; |
---|
| 879 | else { |
---|
| 880 | mdd_free(resTmp); |
---|
| 881 | resPart = ImageFast2(info, tmpVector); |
---|
| 882 | } |
---|
| 883 | ImgVectorFree(tmpVector); |
---|
| 884 | } else |
---|
| 885 | resPart = ImageFast2(info, newVector); |
---|
| 886 | } else if (splitMethod == 2) { |
---|
| 887 | if (info->useConstraint) { |
---|
| 888 | ImgVectorConstrain(info, newVector, from, NIL(array_t), |
---|
| 889 | &tmpVector, &resTmp, NIL(array_t *), |
---|
| 890 | NIL(mdd_t *), NIL(mdd_t *), FALSE); |
---|
| 891 | if (array_n(tmpVector) <= 1) |
---|
| 892 | resPart = resTmp; |
---|
| 893 | else if (array_n(tmpVector) == 2) { |
---|
| 894 | mdd_free(resTmp); |
---|
| 895 | resPart = ImageFast2(info, tmpVector); |
---|
| 896 | } else { |
---|
| 897 | tmp = mdd_one(info->manager); |
---|
| 898 | resPart = ImageByOutputSplit(info, tmpVector, tmp, depth + 1); |
---|
| 899 | mdd_free(tmp); |
---|
| 900 | tmp = resPart; |
---|
| 901 | resPart = mdd_and(tmp, resTmp, 1, 1); |
---|
| 902 | mdd_free(tmp); |
---|
| 903 | mdd_free(resTmp); |
---|
| 904 | } |
---|
| 905 | ImgVectorFree(tmpVector); |
---|
| 906 | } else { |
---|
| 907 | tmp = mdd_one(info->manager); |
---|
| 908 | resPart = ImageByOutputSplit(info, newVector, tmp, depth + 1); |
---|
| 909 | mdd_free(tmp); |
---|
| 910 | } |
---|
| 911 | } else { |
---|
| 912 | if (relationArray) { |
---|
| 913 | resPart = ImgImageByHybridWithStaticSplit(info, NIL(array_t), from, |
---|
| 914 | newRelationArray, |
---|
| 915 | newCofactorCube, |
---|
| 916 | newAbstractCube); |
---|
| 917 | } else |
---|
| 918 | resPart = ImgImageByHybrid(info, newVector, from); |
---|
| 919 | } |
---|
| 920 | if (info->imgCache) { |
---|
| 921 | if (from) { |
---|
| 922 | ImgCacheInsertTable(info->imgCache, newVector, mdd_dup(from), |
---|
| 923 | resPart); |
---|
| 924 | } else |
---|
| 925 | ImgCacheInsertTable(info->imgCache, newVector, NIL(mdd_t), resPart); |
---|
| 926 | } |
---|
| 927 | } |
---|
| 928 | |
---|
| 929 | if (relationArray && newRelationArray != relationArray) |
---|
| 930 | mdd_array_free(newRelationArray); |
---|
| 931 | if (newCofactorCube) |
---|
| 932 | mdd_free(newCofactorCube); |
---|
| 933 | if (newAbstractCube) |
---|
| 934 | mdd_free(newAbstractCube); |
---|
| 935 | |
---|
| 936 | if (info->option->debug) { |
---|
| 937 | refResult = ImgImageByHybrid(info, newVector, from); |
---|
| 938 | assert(mdd_equal(refResult, resPart)); |
---|
| 939 | mdd_free(refResult); |
---|
| 940 | } |
---|
| 941 | |
---|
| 942 | new_ = mdd_and(res, resPart, 1, 1); |
---|
| 943 | if (info->option->verbosity) { |
---|
| 944 | size = bdd_size(new_); |
---|
| 945 | if (size > info->maxIntermediateSize) |
---|
| 946 | info->maxIntermediateSize = size; |
---|
| 947 | if (info->option->printBddSize) { |
---|
| 948 | fprintf(vis_stdout, "** tfm info: bdd_and(%d,%d) = %d\n", |
---|
| 949 | bdd_size(res), bdd_size(resPart), size); |
---|
| 950 | } |
---|
| 951 | } |
---|
| 952 | mdd_free(res); |
---|
| 953 | res = new_; |
---|
| 954 | if (!info->imgCache || hit) { |
---|
| 955 | mdd_free(resPart); |
---|
| 956 | ImgVectorFree(newVector); |
---|
| 957 | } |
---|
| 958 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 959 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 960 | if (depth > info->maxDepth) |
---|
| 961 | info->maxDepth = depth; |
---|
| 962 | info->nLeaves++; |
---|
| 963 | if (turnFlag) |
---|
| 964 | info->nTurns++; |
---|
| 965 | if (findEssential) |
---|
| 966 | info->foundEssentialDepth = foundEssentialDepth; |
---|
| 967 | if (info->option->debug) |
---|
| 968 | assert(TfmCheckImageValidity(info, res)); |
---|
| 969 | return(res); |
---|
| 970 | } |
---|
| 971 | |
---|
| 972 | if (info->imgCache) { |
---|
| 973 | resPart = ImgCacheLookupTable(info, info->imgCache, newVector, from); |
---|
| 974 | if (resPart) { |
---|
| 975 | if (info->option->debug) { |
---|
| 976 | refResult = ImgImageByHybrid(info, newVector, from); |
---|
| 977 | assert(mdd_equal(refResult, resPart)); |
---|
| 978 | mdd_free(refResult); |
---|
| 979 | } |
---|
| 980 | new_ = mdd_and(res, resPart, 1, 1); |
---|
| 981 | if (info->option->verbosity) { |
---|
| 982 | size = bdd_size(new_); |
---|
| 983 | if (size > info->maxIntermediateSize) |
---|
| 984 | info->maxIntermediateSize = size; |
---|
| 985 | if (info->option->printBddSize) { |
---|
| 986 | fprintf(vis_stdout, "** tfm info: bdd_and(%d,%d) = %d\n", |
---|
| 987 | bdd_size(res), bdd_size(resPart), size); |
---|
| 988 | } |
---|
| 989 | } |
---|
| 990 | mdd_free(res); |
---|
| 991 | mdd_free(resPart); |
---|
| 992 | res = new_; |
---|
| 993 | ImgVectorFree(newVector); |
---|
| 994 | if (relationArray && newRelationArray != relationArray) |
---|
| 995 | mdd_array_free(newRelationArray); |
---|
| 996 | if (newCofactorCube) |
---|
| 997 | mdd_free(newCofactorCube); |
---|
| 998 | if (newAbstractCube) |
---|
| 999 | mdd_free(newAbstractCube); |
---|
| 1000 | if (findEssential) |
---|
| 1001 | info->foundEssentialDepth = foundEssentialDepth; |
---|
| 1002 | if (info->option->debug) |
---|
| 1003 | assert(TfmCheckImageValidity(info, res)); |
---|
| 1004 | return(res); |
---|
| 1005 | } |
---|
| 1006 | } |
---|
| 1007 | |
---|
| 1008 | if (info->option->splitCubeFunc) { |
---|
| 1009 | split = -1; |
---|
| 1010 | cubeSize = 0; |
---|
| 1011 | for (i = 0; i < array_n(newVector); i++) { |
---|
| 1012 | comp = array_fetch(ImgComponent_t *, newVector, i); |
---|
| 1013 | if (bdd_is_cube(comp->func)) { |
---|
| 1014 | if (split == -1 || info->option->splitCubeFunc == 1 || |
---|
| 1015 | bdd_size(comp->func) > cubeSize) { |
---|
| 1016 | split = i; |
---|
| 1017 | cubeSize = bdd_size(comp->func); |
---|
| 1018 | break; |
---|
| 1019 | } |
---|
| 1020 | } |
---|
| 1021 | } |
---|
| 1022 | if (split != -1) { |
---|
| 1023 | comp = array_fetch(ImgComponent_t *, newVector, split); |
---|
| 1024 | info->nCubeSplits++; |
---|
| 1025 | if (info->option->delayedSplit && relationArray) { |
---|
| 1026 | ImgVectorConstrain(info, newVector, comp->func, newRelationArray, |
---|
| 1027 | &vectorT, &andT, &relationArrayT, |
---|
| 1028 | &cofactor, &abstract, FALSE); |
---|
| 1029 | cofactorCubeT = mdd_and(newCofactorCube, cofactor, 1, 1); |
---|
| 1030 | mdd_free(cofactor); |
---|
| 1031 | abstractCubeT = mdd_and(newAbstractCube, abstract, 1, 1); |
---|
| 1032 | mdd_free(abstract); |
---|
| 1033 | } else { |
---|
| 1034 | ImgVectorConstrain(info, newVector, comp->func, newRelationArray, |
---|
| 1035 | &vectorT, &andT, &relationArrayT, |
---|
| 1036 | NIL(mdd_t *), NIL(mdd_t *), FALSE); |
---|
| 1037 | cofactorCubeT = NIL(mdd_t); |
---|
| 1038 | abstractCubeT = NIL(mdd_t); |
---|
| 1039 | } |
---|
| 1040 | if (from) |
---|
| 1041 | newFrom = bdd_cofactor(from, comp->func); |
---|
| 1042 | else |
---|
| 1043 | newFrom = from; |
---|
| 1044 | if (info->option->checkEquivalence && |
---|
| 1045 | relationArray && !info->option->buildPartialTR) { |
---|
| 1046 | assert(ImgCheckEquivalence(info, vectorT, relationArrayT, |
---|
| 1047 | cofactorCubeT, abstractCubeT, 0)); |
---|
| 1048 | } |
---|
| 1049 | |
---|
| 1050 | one = mdd_one(info->manager); |
---|
| 1051 | if (newFrom && bdd_is_tautology(newFrom, 0)) |
---|
| 1052 | resT = mdd_zero(info->manager); |
---|
| 1053 | else { |
---|
| 1054 | prevLambda = info->prevLambda; |
---|
| 1055 | prevTotal = info->prevTotal; |
---|
| 1056 | prevVectorBddSize = info->prevVectorBddSize; |
---|
| 1057 | prevVectorSize = info->prevVectorSize; |
---|
| 1058 | resT = ImageByInputSplit(info, vectorT, one, newFrom, |
---|
| 1059 | relationArrayT, cofactorCubeT, abstractCubeT, |
---|
| 1060 | splitMethod, turnDepth, depth + 1); |
---|
| 1061 | info->prevLambda = prevLambda; |
---|
| 1062 | info->prevTotal = prevTotal; |
---|
| 1063 | info->prevVectorBddSize = prevVectorBddSize; |
---|
| 1064 | info->prevVectorSize = prevVectorSize; |
---|
| 1065 | } |
---|
| 1066 | ImgVectorFree(vectorT); |
---|
| 1067 | if (newFrom) |
---|
| 1068 | mdd_free(newFrom); |
---|
| 1069 | if (!bdd_is_tautology(andT, 1)) { |
---|
| 1070 | tmp = resT; |
---|
| 1071 | resT = mdd_and(tmp, andT, 1, 1); |
---|
| 1072 | mdd_free(tmp); |
---|
| 1073 | } |
---|
| 1074 | if (findEssential) |
---|
| 1075 | foundEssentialDepthT = info->foundEssentialDepth; |
---|
| 1076 | if (relationArrayT && relationArrayT != newRelationArray) |
---|
| 1077 | mdd_array_free(relationArrayT); |
---|
| 1078 | if (cofactorCubeT && cofactorCubeT != newCofactorCube) |
---|
| 1079 | mdd_free(cofactorCubeT); |
---|
| 1080 | if (abstractCubeT && abstractCubeT != newAbstractCube) |
---|
| 1081 | mdd_free(abstractCubeT); |
---|
| 1082 | |
---|
| 1083 | tmp = mdd_not(comp->func); |
---|
| 1084 | if (info->option->delayedSplit && relationArray) { |
---|
| 1085 | ImgVectorConstrain(info, newVector, tmp, newRelationArray, |
---|
| 1086 | &vectorE, &andE, &relationArrayE, |
---|
| 1087 | &cofactor, &abstract, FALSE); |
---|
| 1088 | cofactorCubeE = mdd_and(newCofactorCube, cofactor, 1, 1); |
---|
| 1089 | mdd_free(cofactor); |
---|
| 1090 | abstractCubeE = mdd_and(newAbstractCube, abstract, 1, 1); |
---|
| 1091 | mdd_free(abstract); |
---|
| 1092 | } else { |
---|
| 1093 | ImgVectorConstrain(info, newVector, tmp, newRelationArray, |
---|
| 1094 | &vectorE, &andE, &relationArrayE, |
---|
| 1095 | NIL(mdd_t *), NIL(mdd_t *), FALSE); |
---|
| 1096 | cofactorCubeE = NIL(mdd_t); |
---|
| 1097 | abstractCubeE = NIL(mdd_t); |
---|
| 1098 | } |
---|
| 1099 | if (from) |
---|
| 1100 | newFrom = bdd_cofactor(from, tmp); |
---|
| 1101 | else |
---|
| 1102 | newFrom = from; |
---|
| 1103 | mdd_free(tmp); |
---|
| 1104 | if (relationArray && newRelationArray != relationArray) |
---|
| 1105 | mdd_array_free(newRelationArray); |
---|
| 1106 | if (newCofactorCube) |
---|
| 1107 | mdd_free(newCofactorCube); |
---|
| 1108 | if (newAbstractCube) |
---|
| 1109 | mdd_free(newAbstractCube); |
---|
| 1110 | if (info->option->checkEquivalence && |
---|
| 1111 | relationArray && !info->option->buildPartialTR) { |
---|
| 1112 | assert(ImgCheckEquivalence(info, vectorE, relationArrayE, |
---|
| 1113 | cofactorCubeE, abstractCubeE, 0)); |
---|
| 1114 | } |
---|
| 1115 | |
---|
| 1116 | if (newFrom && bdd_is_tautology(newFrom, 0)) |
---|
| 1117 | resE = mdd_zero(info->manager); |
---|
| 1118 | else { |
---|
| 1119 | resE = ImageByInputSplit(info, vectorE, one, newFrom, |
---|
| 1120 | relationArrayE, cofactorCubeE, abstractCubeE, |
---|
| 1121 | splitMethod, turnDepth, depth + 1); |
---|
| 1122 | } |
---|
| 1123 | ImgVectorFree(vectorE); |
---|
| 1124 | if (newFrom) |
---|
| 1125 | mdd_free(newFrom); |
---|
| 1126 | if (!bdd_is_tautology(andE, 1)) { |
---|
| 1127 | tmp = resE; |
---|
| 1128 | resE = mdd_and(tmp, andE, 1, 1); |
---|
| 1129 | mdd_free(tmp); |
---|
| 1130 | } |
---|
| 1131 | if (findEssential) |
---|
| 1132 | foundEssentialDepthE = info->foundEssentialDepth; |
---|
| 1133 | if (relationArrayE && relationArrayE != newRelationArray) |
---|
| 1134 | mdd_array_free(relationArrayE); |
---|
| 1135 | if (cofactorCubeE && cofactorCubeE != newCofactorCube) |
---|
| 1136 | mdd_free(cofactorCubeE); |
---|
| 1137 | if (abstractCubeE && abstractCubeE != newAbstractCube) |
---|
| 1138 | mdd_free(abstractCubeE); |
---|
| 1139 | |
---|
| 1140 | resPart = bdd_ite(comp->var, resT, resE, 1, 1, 1); |
---|
| 1141 | if (info->option->verbosity) { |
---|
| 1142 | size = bdd_size(resPart); |
---|
| 1143 | if (size > info->maxIntermediateSize) |
---|
| 1144 | info->maxIntermediateSize = size; |
---|
| 1145 | if (info->option->printBddSize) { |
---|
| 1146 | fprintf(vis_stdout, "** tfm info: bdd_ite(2,%d,%d) = %d\n", |
---|
| 1147 | bdd_size(resT), bdd_size(resE), size); |
---|
| 1148 | } |
---|
| 1149 | } |
---|
| 1150 | mdd_free(one); |
---|
| 1151 | |
---|
| 1152 | if (info->imgCache) |
---|
| 1153 | ImgCacheInsertTable(info->imgCache, newVector, NIL(mdd_t), resPart); |
---|
| 1154 | |
---|
| 1155 | if (info->option->debug) { |
---|
| 1156 | refResult = ImgImageByHybrid(info, newVector, from); |
---|
| 1157 | assert(mdd_equal(refResult, resPart)); |
---|
| 1158 | mdd_free(refResult); |
---|
| 1159 | } |
---|
| 1160 | |
---|
| 1161 | new_ = mdd_and(res, resPart, 1, 1); |
---|
| 1162 | if (info->option->verbosity) { |
---|
| 1163 | size = bdd_size(new_); |
---|
| 1164 | if (size > info->maxIntermediateSize) |
---|
| 1165 | info->maxIntermediateSize = size; |
---|
| 1166 | if (info->option->printBddSize) { |
---|
| 1167 | fprintf(vis_stdout, "** tfm info: bdd_and(%d,%d) = %d\n", |
---|
| 1168 | bdd_size(res), bdd_size(resPart), size); |
---|
| 1169 | } |
---|
| 1170 | } |
---|
| 1171 | mdd_free(res); |
---|
| 1172 | res = new_; |
---|
| 1173 | |
---|
| 1174 | if (info->option->debug) { |
---|
| 1175 | refResult = ImgImageByHybrid(info, newVector, from); |
---|
| 1176 | assert(mdd_equal(refResult, resPart)); |
---|
| 1177 | mdd_free(refResult); |
---|
| 1178 | } |
---|
| 1179 | |
---|
| 1180 | if (!info->imgCache) { |
---|
| 1181 | mdd_free(resPart); |
---|
| 1182 | ImgVectorFree(newVector); |
---|
| 1183 | } |
---|
| 1184 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 1185 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 1186 | if (depth > info->maxDepth) |
---|
| 1187 | info->maxDepth = depth; |
---|
| 1188 | info->nLeaves++; |
---|
| 1189 | if (turnFlag) |
---|
| 1190 | info->nTurns++; |
---|
| 1191 | if (findEssential) { |
---|
| 1192 | if (foundEssentialDepth == info->option->maxEssentialDepth) { |
---|
| 1193 | if (foundEssentialDepthT < foundEssentialDepthE) |
---|
| 1194 | foundEssentialDepth = foundEssentialDepthT; |
---|
| 1195 | else |
---|
| 1196 | foundEssentialDepth = foundEssentialDepthE; |
---|
| 1197 | } |
---|
| 1198 | info->foundEssentialDepth = foundEssentialDepth; |
---|
| 1199 | } |
---|
| 1200 | if (info->option->debug) |
---|
| 1201 | assert(TfmCheckImageValidity(info, res)); |
---|
| 1202 | return(res); |
---|
| 1203 | } |
---|
| 1204 | } |
---|
| 1205 | |
---|
| 1206 | /* compute disconnected component and best variable selection */ |
---|
| 1207 | vectorArray = array_alloc(array_t *, 0); |
---|
| 1208 | varArray = array_alloc(int, 0); |
---|
| 1209 | if (info->option->delayedSplit && relationArray) { |
---|
| 1210 | nGroups = ImageDecomposeAndChooseSplitVar(info, newVector, from, 0, |
---|
| 1211 | info->option->inputSplit, |
---|
| 1212 | info->option->piSplitFlag, |
---|
| 1213 | vectorArray, varArray, &product, |
---|
| 1214 | newRelationArray, &tmpRelationArray, |
---|
| 1215 | &cofactor, &abstract); |
---|
| 1216 | } else { |
---|
| 1217 | nGroups = ImageDecomposeAndChooseSplitVar(info, newVector, from, 0, |
---|
| 1218 | info->option->inputSplit, |
---|
| 1219 | info->option->piSplitFlag, |
---|
| 1220 | vectorArray, varArray, &product, |
---|
| 1221 | newRelationArray, &tmpRelationArray, |
---|
| 1222 | NIL(mdd_t *), NIL(mdd_t *)); |
---|
| 1223 | cofactor = NIL(mdd_t); |
---|
| 1224 | abstract = NIL(mdd_t); |
---|
| 1225 | |
---|
| 1226 | if (info->option->debug && nGroups >= 1) { |
---|
| 1227 | if (info->option->verbosity > 1) { |
---|
| 1228 | ImgPrintVectorDependency(info, newVector, info->option->verbosity); |
---|
| 1229 | PrintVectorDecomposition(info, vectorArray, varArray); |
---|
| 1230 | } |
---|
| 1231 | |
---|
| 1232 | refResult = ImgImageByHybrid(info, newVector, from); |
---|
| 1233 | resPart = mdd_dup(product); |
---|
| 1234 | for (i = 0; i < array_n(vectorArray); i++) { |
---|
| 1235 | vector = array_fetch(array_t *, vectorArray, i); |
---|
| 1236 | resTmp = ImgImageByHybrid(info, vector, from); |
---|
| 1237 | tmp = resPart; |
---|
| 1238 | resPart = mdd_and(tmp, resTmp, 1, 1); |
---|
| 1239 | mdd_free(tmp); |
---|
| 1240 | mdd_free(resTmp); |
---|
| 1241 | |
---|
| 1242 | if (arraySize > nFuncs) { |
---|
| 1243 | split = array_fetch(int, varArray, i); |
---|
| 1244 | assert(!st_is_member(info->intermediateVarsTable, |
---|
| 1245 | (char *)(long)split)); |
---|
| 1246 | } |
---|
| 1247 | } |
---|
| 1248 | assert(mdd_equal(refResult, resPart)); |
---|
| 1249 | mdd_free(refResult); |
---|
| 1250 | mdd_free(resPart); |
---|
| 1251 | } |
---|
| 1252 | } |
---|
| 1253 | vectorSize = array_n(newVector); |
---|
| 1254 | if ((!info->imgCache || nGroups <= 1) && !info->option->debug) |
---|
| 1255 | ImgVectorFree(newVector); |
---|
| 1256 | if (newRelationArray) { |
---|
| 1257 | if (newRelationArray != relationArray && |
---|
| 1258 | tmpRelationArray != newRelationArray) { |
---|
| 1259 | mdd_array_free(newRelationArray); |
---|
| 1260 | } |
---|
| 1261 | newRelationArray = tmpRelationArray; |
---|
| 1262 | } |
---|
| 1263 | if (nGroups == 0) { |
---|
| 1264 | if (relationArray && newRelationArray != relationArray) |
---|
| 1265 | mdd_array_free(newRelationArray); |
---|
| 1266 | if (newCofactorCube) |
---|
| 1267 | mdd_free(newCofactorCube); |
---|
| 1268 | if (newAbstractCube) |
---|
| 1269 | mdd_free(newAbstractCube); |
---|
| 1270 | if (cofactor) |
---|
| 1271 | mdd_free(cofactor); |
---|
| 1272 | if (abstract) |
---|
| 1273 | mdd_free(abstract); |
---|
| 1274 | |
---|
| 1275 | array_free(vectorArray); |
---|
| 1276 | array_free(varArray); |
---|
| 1277 | |
---|
| 1278 | if (info->option->debug) { |
---|
| 1279 | refResult = ImgImageByHybrid(info, newVector, from); |
---|
| 1280 | assert(mdd_equal(refResult, product)); |
---|
| 1281 | mdd_free(refResult); |
---|
| 1282 | ImgVectorFree(newVector); |
---|
| 1283 | } |
---|
| 1284 | |
---|
| 1285 | new_ = mdd_and(res, product, 1, 1); |
---|
| 1286 | if (info->option->verbosity) { |
---|
| 1287 | size = bdd_size(new_); |
---|
| 1288 | if (size > info->maxIntermediateSize) |
---|
| 1289 | info->maxIntermediateSize = size; |
---|
| 1290 | if (info->option->printBddSize) { |
---|
| 1291 | fprintf(vis_stdout, "** tfm info: bdd_and(%d,%d) = %d\n", |
---|
| 1292 | bdd_size(res), bdd_size(product), size); |
---|
| 1293 | } |
---|
| 1294 | } |
---|
| 1295 | mdd_free(res); |
---|
| 1296 | mdd_free(product); |
---|
| 1297 | res = new_; |
---|
| 1298 | |
---|
| 1299 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 1300 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 1301 | if (depth > info->maxDepth) |
---|
| 1302 | info->maxDepth = depth; |
---|
| 1303 | info->nLeaves++; |
---|
| 1304 | if (findEssential) |
---|
| 1305 | info->foundEssentialDepth = foundEssentialDepth; |
---|
| 1306 | if (info->option->debug) |
---|
| 1307 | assert(TfmCheckImageValidity(info, res)); |
---|
| 1308 | return(res); |
---|
| 1309 | } |
---|
| 1310 | |
---|
| 1311 | if (info->option->delayedSplit && relationArray) { |
---|
| 1312 | tmp = newCofactorCube; |
---|
| 1313 | newCofactorCube = mdd_and(tmp, cofactor, 1, 1); |
---|
| 1314 | mdd_free(tmp); |
---|
| 1315 | mdd_free(cofactor); |
---|
| 1316 | tmp = newAbstractCube; |
---|
| 1317 | newAbstractCube = mdd_and(tmp, abstract, 1, 1); |
---|
| 1318 | mdd_free(tmp); |
---|
| 1319 | mdd_free(abstract); |
---|
| 1320 | } |
---|
| 1321 | |
---|
| 1322 | if (nGroups > 1) { |
---|
| 1323 | if (info->nDecomps == 0 || depth < info->topDecomp) |
---|
| 1324 | info->topDecomp = depth; |
---|
| 1325 | if (info->nDecomps == 0 || vectorSize > info->maxDecomp) |
---|
| 1326 | info->maxDecomp = vectorSize; |
---|
| 1327 | info->averageDecomp = (info->averageDecomp * (float)info->nDecomps + |
---|
| 1328 | (float)nGroups) / (float)(info->nDecomps + 1); |
---|
| 1329 | info->nDecomps++; |
---|
| 1330 | } |
---|
| 1331 | |
---|
| 1332 | if (relationArray && nGroups > 1) { |
---|
| 1333 | abstractVars = array_alloc(mdd_t *, 0); |
---|
| 1334 | for (i = 0; i < array_n(vectorArray); i++) { |
---|
| 1335 | vector = array_fetch(array_t *, vectorArray, i); |
---|
| 1336 | cube = mdd_one(info->manager); |
---|
| 1337 | for (j = 0; j < nGroups; j++) { |
---|
| 1338 | if (j == i) |
---|
| 1339 | continue; |
---|
| 1340 | tmpVector = array_fetch(array_t *, vectorArray, j); |
---|
| 1341 | for (k = 0; k < array_n(tmpVector); k++) { |
---|
| 1342 | comp = array_fetch(ImgComponent_t *, tmpVector, k); |
---|
| 1343 | tmp = cube; |
---|
| 1344 | cube = mdd_and(cube, comp->var, 1, 1); |
---|
| 1345 | mdd_free(tmp); |
---|
| 1346 | } |
---|
| 1347 | } |
---|
| 1348 | tmp = ImgSubstitute(cube, info->functionData, Img_D2R_c); |
---|
| 1349 | mdd_free(cube); |
---|
| 1350 | array_insert_last(mdd_t *, abstractVars, tmp); |
---|
| 1351 | } |
---|
| 1352 | } else |
---|
| 1353 | abstractVars = NIL(array_t); |
---|
| 1354 | for (i = 0; i < array_n(vectorArray); i++) { |
---|
| 1355 | vector = array_fetch(array_t *, vectorArray, i); |
---|
| 1356 | if (from) |
---|
| 1357 | newFrom = mdd_dup(from); |
---|
| 1358 | else |
---|
| 1359 | newFrom = from; |
---|
| 1360 | |
---|
| 1361 | if (relationArray) { |
---|
| 1362 | if (nGroups == 1) { |
---|
| 1363 | partRelationArray = newRelationArray; |
---|
| 1364 | if (info->option->delayedSplit) { |
---|
| 1365 | partCofactorCube = newCofactorCube; |
---|
| 1366 | partAbstractCube = newAbstractCube; |
---|
| 1367 | } else { |
---|
| 1368 | partCofactorCube = NIL(mdd_t); |
---|
| 1369 | partAbstractCube = NIL(mdd_t); |
---|
| 1370 | } |
---|
| 1371 | } else { |
---|
| 1372 | cube = array_fetch(mdd_t *, abstractVars, i); |
---|
| 1373 | if (info->option->delayedSplit) { |
---|
| 1374 | partRelationArray = newRelationArray; |
---|
| 1375 | partCofactorCube = mdd_dup(newCofactorCube); |
---|
| 1376 | partAbstractCube = mdd_and(newAbstractCube, cube, 1, 1); |
---|
| 1377 | } else { |
---|
| 1378 | partRelationArray = ImgGetAbstractedRelationArray(info->manager, |
---|
| 1379 | newRelationArray, |
---|
| 1380 | cube); |
---|
| 1381 | mdd_free(cube); |
---|
| 1382 | partCofactorCube = NIL(mdd_t); |
---|
| 1383 | partAbstractCube = NIL(mdd_t); |
---|
| 1384 | } |
---|
| 1385 | } |
---|
| 1386 | if (info->option->debug) { |
---|
| 1387 | refResult = ImgImageByHybrid(info, vector, from); |
---|
| 1388 | resPart = ImgImageByHybridWithStaticSplit(info, NIL(array_t), from, |
---|
| 1389 | partRelationArray, |
---|
| 1390 | partCofactorCube, |
---|
| 1391 | partAbstractCube); |
---|
| 1392 | assert(mdd_equal(refResult, resPart)); |
---|
| 1393 | mdd_free(refResult); |
---|
| 1394 | mdd_free(resPart); |
---|
| 1395 | } |
---|
| 1396 | } else { |
---|
| 1397 | partRelationArray = newRelationArray; |
---|
| 1398 | partCofactorCube = NIL(mdd_t); |
---|
| 1399 | partAbstractCube = NIL(mdd_t); |
---|
| 1400 | } |
---|
| 1401 | hit = 1; |
---|
| 1402 | if (!info->imgCache || nGroups == 1 || |
---|
| 1403 | !(resPart = ImgCacheLookupTable(info, info->imgCache, vector, |
---|
| 1404 | newFrom))) { |
---|
| 1405 | hit = 0; |
---|
| 1406 | if (arraySize > nFuncs) |
---|
| 1407 | size = ImgVectorFunctionSize(vector); |
---|
| 1408 | else |
---|
| 1409 | size = array_n(vector); |
---|
| 1410 | if (size == 1) { |
---|
| 1411 | comp = array_fetch(ImgComponent_t *, vector, 0); |
---|
| 1412 | if (array_n(vector) > 1) |
---|
| 1413 | func = ImgGetComposedFunction(vector); |
---|
| 1414 | else |
---|
| 1415 | func = comp->func; |
---|
| 1416 | if (info->useConstraint) { |
---|
| 1417 | constConstrain = ImgConstConstrain(func, newFrom); |
---|
| 1418 | if (constConstrain == 1) |
---|
| 1419 | resPart = mdd_dup(comp->var); |
---|
| 1420 | else if (constConstrain == 0) |
---|
| 1421 | resPart = mdd_not(comp->var); |
---|
| 1422 | else |
---|
| 1423 | resPart = mdd_one(info->manager); |
---|
| 1424 | } else { |
---|
| 1425 | if (bdd_is_tautology(func, 1)) |
---|
| 1426 | resPart = mdd_dup(comp->var); |
---|
| 1427 | else if (bdd_is_tautology(func, 0)) |
---|
| 1428 | resPart = mdd_not(comp->var); |
---|
| 1429 | else |
---|
| 1430 | resPart = mdd_one(info->manager); |
---|
| 1431 | } |
---|
| 1432 | if (array_n(vector) > 1) |
---|
| 1433 | mdd_free(func); |
---|
| 1434 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 1435 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 1436 | if (depth > info->maxDepth) |
---|
| 1437 | info->maxDepth = depth; |
---|
| 1438 | info->nLeaves++; |
---|
| 1439 | } else if (size == 2) { |
---|
| 1440 | if (info->useConstraint) { |
---|
| 1441 | ImgVectorConstrain(info, vector, newFrom, NIL(array_t), |
---|
| 1442 | &newVector, &resTmp, NIL(array_t *), |
---|
| 1443 | NIL(mdd_t *), NIL(mdd_t *), FALSE); |
---|
| 1444 | if (array_n(newVector) <= 1) |
---|
| 1445 | resPart = resTmp; |
---|
| 1446 | else { |
---|
| 1447 | mdd_free(resTmp); |
---|
| 1448 | resPart = ImageFast2(info, newVector); |
---|
| 1449 | } |
---|
| 1450 | ImgVectorFree(newVector); |
---|
| 1451 | } else |
---|
| 1452 | resPart = ImageFast2(info, vector); |
---|
| 1453 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 1454 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 1455 | if (depth > info->maxDepth) |
---|
| 1456 | info->maxDepth = depth; |
---|
| 1457 | info->nLeaves++; |
---|
| 1458 | } else { |
---|
| 1459 | nRecur = 0; |
---|
| 1460 | split = array_fetch(int, varArray, i); |
---|
| 1461 | if (partRelationArray && info->imgKeepPiInTr == FALSE) { |
---|
| 1462 | if (st_lookup(info->quantifyVarsTable, (char *)(long)split, |
---|
| 1463 | NIL(char *))) { |
---|
| 1464 | int newSplit; |
---|
| 1465 | |
---|
| 1466 | /* checks the splitting is valid */ |
---|
| 1467 | newSplit = CheckIfValidSplitOrGetNew(info, split, vector, |
---|
| 1468 | partRelationArray, from); |
---|
| 1469 | if (newSplit == -1) { |
---|
| 1470 | resPart = ImgImageByHybrid(info, vector, from); |
---|
| 1471 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 1472 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 1473 | if (depth > info->maxDepth) |
---|
| 1474 | info->maxDepth = depth; |
---|
| 1475 | info->nLeaves++; |
---|
| 1476 | info->nTurns++; |
---|
| 1477 | goto cache; |
---|
| 1478 | } |
---|
| 1479 | split = newSplit; |
---|
| 1480 | } |
---|
| 1481 | } |
---|
| 1482 | var = bdd_var_with_index(info->manager, split); |
---|
| 1483 | if (newFrom) |
---|
| 1484 | fromT = bdd_cofactor(newFrom, var); |
---|
| 1485 | else |
---|
| 1486 | fromT = NIL(mdd_t); |
---|
| 1487 | if (partRelationArray) { |
---|
| 1488 | if (info->option->delayedSplit) { |
---|
| 1489 | relationArrayT = partRelationArray; |
---|
| 1490 | cofactorCubeT = mdd_and(partCofactorCube, var, 1, 1); |
---|
| 1491 | } else { |
---|
| 1492 | relationArrayT = ImgGetCofactoredRelationArray(partRelationArray, |
---|
| 1493 | var); |
---|
| 1494 | cofactorCubeT = partCofactorCube; |
---|
| 1495 | } |
---|
| 1496 | } else { |
---|
| 1497 | relationArrayT = NIL(array_t); |
---|
| 1498 | cofactorCubeT = NIL(mdd_t); |
---|
| 1499 | } |
---|
| 1500 | if (!fromT || !bdd_is_tautology(fromT, 0)) { |
---|
| 1501 | prevLambda = info->prevLambda; |
---|
| 1502 | prevTotal = info->prevTotal; |
---|
| 1503 | prevVectorBddSize = info->prevVectorBddSize; |
---|
| 1504 | prevVectorSize = info->prevVectorSize; |
---|
| 1505 | resT = ImageByInputSplit(info, vector, var, fromT, |
---|
| 1506 | relationArrayT, cofactorCubeT, partAbstractCube, |
---|
| 1507 | splitMethod, turnDepth, depth + 1); |
---|
| 1508 | if (info->option->debug) { |
---|
| 1509 | refResult = ImgImageByHybridWithStaticSplit(info, NIL(array_t), |
---|
| 1510 | fromT, relationArrayT, |
---|
| 1511 | cofactorCubeT, |
---|
| 1512 | partAbstractCube); |
---|
| 1513 | assert(mdd_equal(refResult, resT)); |
---|
| 1514 | mdd_free(refResult); |
---|
| 1515 | } |
---|
| 1516 | info->prevLambda = prevLambda; |
---|
| 1517 | info->prevTotal = prevTotal; |
---|
| 1518 | info->prevVectorBddSize = prevVectorBddSize; |
---|
| 1519 | info->prevVectorSize = prevVectorSize; |
---|
| 1520 | if (findEssential) |
---|
| 1521 | foundEssentialDepthT = info->foundEssentialDepth; |
---|
| 1522 | nRecur++; |
---|
| 1523 | } else |
---|
| 1524 | resT = mdd_zero(info->manager); |
---|
| 1525 | if (fromT) |
---|
| 1526 | mdd_free(fromT); |
---|
| 1527 | if (relationArrayT && relationArrayT != partRelationArray) |
---|
| 1528 | mdd_array_free(relationArrayT); |
---|
| 1529 | if (cofactorCubeT && cofactorCubeT != partCofactorCube) |
---|
| 1530 | mdd_free(cofactorCubeT); |
---|
| 1531 | |
---|
| 1532 | if (bdd_is_tautology(resT, 1)) { |
---|
| 1533 | mdd_free(var); |
---|
| 1534 | resPart = resT; |
---|
| 1535 | info->nEmptySubImage++; |
---|
| 1536 | } else { |
---|
| 1537 | varNot = mdd_not(var); |
---|
| 1538 | mdd_free(var); |
---|
| 1539 | if (newFrom) |
---|
| 1540 | fromE = bdd_cofactor(newFrom, varNot); |
---|
| 1541 | else |
---|
| 1542 | fromE = NIL(mdd_t); |
---|
| 1543 | if (partRelationArray) { |
---|
| 1544 | if (info->option->delayedSplit) { |
---|
| 1545 | relationArrayE = partRelationArray; |
---|
| 1546 | cofactorCubeE = mdd_and(partCofactorCube, varNot, 1, 1); |
---|
| 1547 | } else { |
---|
| 1548 | relationArrayE = ImgGetCofactoredRelationArray(partRelationArray, |
---|
| 1549 | varNot); |
---|
| 1550 | cofactorCubeE = partCofactorCube; |
---|
| 1551 | } |
---|
| 1552 | } else { |
---|
| 1553 | relationArrayE = NIL(array_t); |
---|
| 1554 | cofactorCubeE = NIL(mdd_t); |
---|
| 1555 | } |
---|
| 1556 | if (!fromE || !bdd_is_tautology(fromE, 0)) { |
---|
| 1557 | resE = ImageByInputSplit(info, vector, varNot, fromE, |
---|
| 1558 | relationArrayE, cofactorCubeE, partAbstractCube, |
---|
| 1559 | splitMethod, turnDepth, depth + 1); |
---|
| 1560 | if (info->option->debug) { |
---|
| 1561 | refResult = ImgImageByHybridWithStaticSplit(info, NIL(array_t), |
---|
| 1562 | fromE, relationArrayE, |
---|
| 1563 | cofactorCubeE, |
---|
| 1564 | partAbstractCube); |
---|
| 1565 | assert(mdd_equal(refResult, resE)); |
---|
| 1566 | mdd_free(refResult); |
---|
| 1567 | } |
---|
| 1568 | if (findEssential) |
---|
| 1569 | foundEssentialDepthE = info->foundEssentialDepth; |
---|
| 1570 | nRecur++; |
---|
| 1571 | } else |
---|
| 1572 | resE = mdd_zero(info->manager); |
---|
| 1573 | mdd_free(varNot); |
---|
| 1574 | if (fromE) |
---|
| 1575 | mdd_free(fromE); |
---|
| 1576 | if (relationArrayE && relationArrayE != partRelationArray) |
---|
| 1577 | mdd_array_free(relationArrayE); |
---|
| 1578 | if (cofactorCubeE && cofactorCubeE != partCofactorCube) |
---|
| 1579 | mdd_free(cofactorCubeE); |
---|
| 1580 | |
---|
| 1581 | resPart = mdd_or(resT, resE, 1, 1); |
---|
| 1582 | if (info->option->debug) { |
---|
| 1583 | refResult = ImgImageByHybrid(info, vector, from); |
---|
| 1584 | assert(mdd_equal(refResult, resPart)); |
---|
| 1585 | mdd_free(refResult); |
---|
| 1586 | } |
---|
| 1587 | if (info->option->verbosity) { |
---|
| 1588 | size = bdd_size(resPart); |
---|
| 1589 | if (size > info->maxIntermediateSize) |
---|
| 1590 | info->maxIntermediateSize = size; |
---|
| 1591 | if (info->option->printBddSize) { |
---|
| 1592 | fprintf(vis_stdout, "** tfm info: bdd_or(%d,%d) = %d\n", |
---|
| 1593 | bdd_size(resT), bdd_size(resE), size); |
---|
| 1594 | } |
---|
| 1595 | } |
---|
| 1596 | |
---|
| 1597 | mdd_free(resT); |
---|
| 1598 | mdd_free(resE); |
---|
| 1599 | } |
---|
| 1600 | if (nRecur == 0) { |
---|
| 1601 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 1602 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 1603 | if (depth > info->maxDepth) |
---|
| 1604 | info->maxDepth = depth; |
---|
| 1605 | info->nLeaves++; |
---|
| 1606 | } |
---|
| 1607 | } |
---|
| 1608 | cache: |
---|
| 1609 | if (info->imgCache) { |
---|
| 1610 | ImgCacheInsertTable(info->imgCache, vector, newFrom, resPart); |
---|
| 1611 | if (info->option->debug) { |
---|
| 1612 | refResult = ImgImageByHybrid(info, vector, newFrom); |
---|
| 1613 | assert(mdd_equal(refResult, resPart)); |
---|
| 1614 | mdd_free(refResult); |
---|
| 1615 | } |
---|
| 1616 | } |
---|
| 1617 | } |
---|
| 1618 | if (!info->imgCache || hit) { |
---|
| 1619 | ImgVectorFree(vector); |
---|
| 1620 | if (newFrom) |
---|
| 1621 | mdd_free(newFrom); |
---|
| 1622 | } |
---|
| 1623 | new_ = mdd_and(product, resPart, 1, 1); |
---|
| 1624 | if (info->option->verbosity) { |
---|
| 1625 | size = bdd_size(new_); |
---|
| 1626 | if (size > info->maxIntermediateSize) |
---|
| 1627 | info->maxIntermediateSize = size; |
---|
| 1628 | if (info->option->printBddSize) { |
---|
| 1629 | fprintf(vis_stdout, "** tfm info: bdd_and(%d,%d) = %d\n", |
---|
| 1630 | bdd_size(product), bdd_size(resPart), size); |
---|
| 1631 | } |
---|
| 1632 | } |
---|
| 1633 | mdd_free(product); |
---|
| 1634 | if (!info->imgCache || hit) |
---|
| 1635 | mdd_free(resPart); |
---|
| 1636 | product = new_; |
---|
| 1637 | if (nGroups > 1 && partRelationArray != newRelationArray) |
---|
| 1638 | mdd_array_free(partRelationArray); |
---|
| 1639 | if (partCofactorCube && partCofactorCube != newCofactorCube) |
---|
| 1640 | mdd_free(partCofactorCube); |
---|
| 1641 | if (partAbstractCube && partAbstractCube != newAbstractCube) |
---|
| 1642 | mdd_free(partAbstractCube); |
---|
| 1643 | } |
---|
| 1644 | if (abstractVars) |
---|
| 1645 | array_free(abstractVars); |
---|
| 1646 | |
---|
| 1647 | if (relationArray && newRelationArray != relationArray) |
---|
| 1648 | mdd_array_free(newRelationArray); |
---|
| 1649 | if (newCofactorCube) |
---|
| 1650 | mdd_free(newCofactorCube); |
---|
| 1651 | if (newAbstractCube) |
---|
| 1652 | mdd_free(newAbstractCube); |
---|
| 1653 | |
---|
| 1654 | array_free(vectorArray); |
---|
| 1655 | array_free(varArray); |
---|
| 1656 | |
---|
| 1657 | if (info->imgCache && nGroups > 1) { |
---|
| 1658 | if (from) { |
---|
| 1659 | ImgCacheInsertTable(info->imgCache, newVector, mdd_dup(from), |
---|
| 1660 | mdd_dup(product)); |
---|
| 1661 | } else { |
---|
| 1662 | ImgCacheInsertTable(info->imgCache, newVector, NIL(mdd_t), |
---|
| 1663 | mdd_dup(product)); |
---|
| 1664 | } |
---|
| 1665 | } |
---|
| 1666 | |
---|
| 1667 | if (info->option->debug) { |
---|
| 1668 | refResult = ImgImageByHybrid(info, newVector, from); |
---|
| 1669 | assert(mdd_equal(refResult, product)); |
---|
| 1670 | mdd_free(refResult); |
---|
| 1671 | if (!info->imgCache || nGroups == 1) |
---|
| 1672 | ImgVectorFree(newVector); |
---|
| 1673 | } |
---|
| 1674 | |
---|
| 1675 | new_ = mdd_and(res, product, 1, 1); |
---|
| 1676 | if (info->option->verbosity) { |
---|
| 1677 | size = bdd_size(new_); |
---|
| 1678 | if (size > info->maxIntermediateSize) |
---|
| 1679 | info->maxIntermediateSize = size; |
---|
| 1680 | if (info->option->printBddSize) { |
---|
| 1681 | fprintf(vis_stdout, "** tfm info: bdd_and(%d,%d) = %d\n", |
---|
| 1682 | bdd_size(res), bdd_size(product), size); |
---|
| 1683 | } |
---|
| 1684 | } |
---|
| 1685 | mdd_free(res); |
---|
| 1686 | mdd_free(product); |
---|
| 1687 | res = new_; |
---|
| 1688 | |
---|
| 1689 | if (findEssential) { |
---|
| 1690 | if (foundEssentialDepth == info->option->maxEssentialDepth) { |
---|
| 1691 | if (foundEssentialDepthT < foundEssentialDepthE) |
---|
| 1692 | foundEssentialDepth = foundEssentialDepthT; |
---|
| 1693 | else |
---|
| 1694 | foundEssentialDepth = foundEssentialDepthE; |
---|
| 1695 | } |
---|
| 1696 | info->foundEssentialDepth = foundEssentialDepth; |
---|
| 1697 | } |
---|
| 1698 | if (info->option->debug) |
---|
| 1699 | assert(TfmCheckImageValidity(info, res)); |
---|
| 1700 | return(res); |
---|
| 1701 | } |
---|
| 1702 | |
---|
| 1703 | |
---|
| 1704 | /**Function******************************************************************** |
---|
| 1705 | |
---|
| 1706 | Synopsis [Computes an image by static input splitting.] |
---|
| 1707 | |
---|
| 1708 | Description [Computes an image by static input splitting.] |
---|
| 1709 | |
---|
| 1710 | SideEffects [] |
---|
| 1711 | |
---|
| 1712 | ******************************************************************************/ |
---|
| 1713 | static mdd_t * |
---|
| 1714 | ImageByStaticInputSplit(ImgTfmInfo_t *info, array_t *vector, mdd_t *from, |
---|
| 1715 | array_t *relationArray, int turnDepth, int depth) |
---|
| 1716 | { |
---|
| 1717 | array_t *vectorT, *vectorE, *tmpVector; |
---|
| 1718 | mdd_t *resT, *resE, *res, *tmp, *cubeT, *cubeE; |
---|
| 1719 | mdd_t *fromT, *fromE; |
---|
| 1720 | mdd_t *var, *varNot; |
---|
| 1721 | array_t *relationArrayT, *relationArrayE; |
---|
| 1722 | array_t *newRelationArray, *tmpRelationArray; |
---|
| 1723 | int nRecur; |
---|
| 1724 | mdd_t *refResult, *and_; |
---|
| 1725 | mdd_t *essentialCube; |
---|
| 1726 | int findEssential; |
---|
| 1727 | int foundEssentialDepth, foundEssentialDepthT, foundEssentialDepthE; |
---|
| 1728 | int turnFlag, size; |
---|
| 1729 | |
---|
| 1730 | info->nRecursion++; |
---|
| 1731 | |
---|
| 1732 | turnFlag = 0; |
---|
| 1733 | if (turnDepth == -1) { |
---|
| 1734 | if (depth < info->option->splitMinDepth) { |
---|
| 1735 | info->nSplits++; |
---|
| 1736 | turnFlag = 0; |
---|
| 1737 | } else if (depth > info->option->splitMaxDepth) { |
---|
| 1738 | info->nConjoins++; |
---|
| 1739 | turnFlag = 1; |
---|
| 1740 | } else { |
---|
| 1741 | turnFlag = ImgDecideSplitOrConjoin(info, vector, from, 0, |
---|
| 1742 | relationArray, NIL(mdd_t), |
---|
| 1743 | NIL(mdd_t), 1, depth); |
---|
| 1744 | } |
---|
| 1745 | } else { |
---|
| 1746 | if (depth == turnDepth) |
---|
| 1747 | turnFlag = 1; |
---|
| 1748 | else |
---|
| 1749 | turnFlag = 0; |
---|
| 1750 | } |
---|
| 1751 | if (turnFlag) { |
---|
| 1752 | res = ImgImageByHybridWithStaticSplit(info, vector, from, relationArray, |
---|
| 1753 | NIL(mdd_t), NIL(mdd_t)); |
---|
| 1754 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 1755 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 1756 | if (depth > info->maxDepth) |
---|
| 1757 | info->maxDepth = depth; |
---|
| 1758 | info->nLeaves++; |
---|
| 1759 | info->foundEssentialDepth = info->option->maxEssentialDepth; |
---|
| 1760 | return(res); |
---|
| 1761 | } |
---|
| 1762 | |
---|
| 1763 | if (info->option->findEssential) { |
---|
| 1764 | if (info->option->findEssential == 1) |
---|
| 1765 | findEssential = 1; |
---|
| 1766 | else { |
---|
| 1767 | if (depth >= info->lastFoundEssentialDepth) |
---|
| 1768 | findEssential = 1; |
---|
| 1769 | else |
---|
| 1770 | findEssential = 0; |
---|
| 1771 | } |
---|
| 1772 | } else |
---|
| 1773 | findEssential = 0; |
---|
| 1774 | if (findEssential) { |
---|
| 1775 | essentialCube = bdd_find_essential_cube(from); |
---|
| 1776 | |
---|
| 1777 | if (!bdd_is_tautology(essentialCube, 1)) { |
---|
| 1778 | info->averageFoundEssential = (info->averageFoundEssential * |
---|
| 1779 | (float)info->nFoundEssentials + (float)(bdd_size(essentialCube) - 1)) / |
---|
| 1780 | (float)(info->nFoundEssentials + 1); |
---|
| 1781 | info->averageFoundEssentialDepth = (info->averageFoundEssentialDepth * |
---|
| 1782 | (float)info->nFoundEssentials + (float)depth) / |
---|
| 1783 | (float)(info->nFoundEssentials + 1); |
---|
| 1784 | if (info->nFoundEssentials == 0 || depth < info->topFoundEssentialDepth) |
---|
| 1785 | info->topFoundEssentialDepth = depth; |
---|
| 1786 | if (info->option->printEssential && depth < IMG_TF_MAX_PRINT_DEPTH) |
---|
| 1787 | info->foundEssentials[depth]++; |
---|
| 1788 | info->nFoundEssentials++; |
---|
| 1789 | ImgVectorMinimize(info, vector, essentialCube, NIL(mdd_t), relationArray, |
---|
| 1790 | &tmpVector, &and_, |
---|
| 1791 | &tmpRelationArray, NIL(mdd_t *), NIL(mdd_t *)); |
---|
| 1792 | foundEssentialDepth = depth; |
---|
| 1793 | } else { |
---|
| 1794 | tmpVector = vector; |
---|
| 1795 | tmpRelationArray = relationArray; |
---|
| 1796 | and_ = NIL(mdd_t); |
---|
| 1797 | foundEssentialDepth = info->option->maxEssentialDepth; |
---|
| 1798 | } |
---|
| 1799 | mdd_free(essentialCube); |
---|
| 1800 | foundEssentialDepthT = info->option->maxEssentialDepth; |
---|
| 1801 | foundEssentialDepthE = info->option->maxEssentialDepth; |
---|
| 1802 | } else { |
---|
| 1803 | tmpVector = vector; |
---|
| 1804 | tmpRelationArray = relationArray; |
---|
| 1805 | and_ = NIL(mdd_t); |
---|
| 1806 | /* To remove compiler warnings */ |
---|
| 1807 | foundEssentialDepth = -1; |
---|
| 1808 | foundEssentialDepthT = -1; |
---|
| 1809 | foundEssentialDepthE = -1; |
---|
| 1810 | } |
---|
| 1811 | |
---|
| 1812 | var = ImgChooseTrSplitVar(info, tmpVector, tmpRelationArray, |
---|
| 1813 | info->option->trSplitMethod, |
---|
| 1814 | info->option->piSplitFlag); |
---|
| 1815 | if (!var) { |
---|
| 1816 | res = ImgImageByHybridWithStaticSplit(info, vector, from, relationArray, |
---|
| 1817 | NIL(mdd_t), NIL(mdd_t)); |
---|
| 1818 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 1819 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 1820 | if (depth > info->maxDepth) |
---|
| 1821 | info->maxDepth = depth; |
---|
| 1822 | info->nLeaves++; |
---|
| 1823 | info->foundEssentialDepth = info->option->maxEssentialDepth; |
---|
| 1824 | return(res); |
---|
| 1825 | } |
---|
| 1826 | |
---|
| 1827 | nRecur = 0; |
---|
| 1828 | if (tmpVector) { |
---|
| 1829 | ImgVectorConstrain(info, tmpVector, var, tmpRelationArray, |
---|
| 1830 | &vectorT, &cubeT, &newRelationArray, |
---|
| 1831 | NIL(mdd_t *), NIL(mdd_t *), TRUE); |
---|
| 1832 | } else { |
---|
| 1833 | vectorT = NIL(array_t); |
---|
| 1834 | cubeT = NIL(mdd_t); |
---|
| 1835 | newRelationArray = tmpRelationArray; |
---|
| 1836 | } |
---|
| 1837 | fromT = bdd_cofactor(from, var); |
---|
| 1838 | relationArrayT = ImgGetCofactoredRelationArray(newRelationArray, var); |
---|
| 1839 | if (relationArray && newRelationArray != tmpRelationArray) |
---|
| 1840 | mdd_array_free(newRelationArray); |
---|
| 1841 | if (!bdd_is_tautology(fromT, 0)) { |
---|
| 1842 | resT = ImageByStaticInputSplit(info, vectorT, fromT, |
---|
| 1843 | relationArrayT, turnDepth, depth + 1); |
---|
| 1844 | if (findEssential) |
---|
| 1845 | foundEssentialDepthT = info->foundEssentialDepth; |
---|
| 1846 | if (vectorT) { |
---|
| 1847 | ImgVectorFree(vectorT); |
---|
| 1848 | if (!bdd_is_tautology(cubeT, 1)) { |
---|
| 1849 | tmp = resT; |
---|
| 1850 | resT = mdd_and(tmp, cubeT, 1, 1); |
---|
| 1851 | mdd_free(tmp); |
---|
| 1852 | } |
---|
| 1853 | mdd_free(cubeT); |
---|
| 1854 | } |
---|
| 1855 | nRecur++; |
---|
| 1856 | } else { |
---|
| 1857 | resT = mdd_zero(info->manager); |
---|
| 1858 | if (vectorT) { |
---|
| 1859 | ImgVectorFree(vectorT); |
---|
| 1860 | mdd_free(cubeT); |
---|
| 1861 | } |
---|
| 1862 | } |
---|
| 1863 | mdd_free(fromT); |
---|
| 1864 | mdd_array_free(relationArrayT); |
---|
| 1865 | |
---|
| 1866 | if (bdd_is_tautology(resT, 1)) { |
---|
| 1867 | mdd_free(var); |
---|
| 1868 | if (vector && newRelationArray != relationArray) |
---|
| 1869 | mdd_array_free(newRelationArray); |
---|
| 1870 | res = resT; |
---|
| 1871 | info->nEmptySubImage++; |
---|
| 1872 | } else { |
---|
| 1873 | varNot = mdd_not(var); |
---|
| 1874 | mdd_free(var); |
---|
| 1875 | if (tmpVector) { |
---|
| 1876 | ImgVectorConstrain(info, tmpVector, varNot, tmpRelationArray, |
---|
| 1877 | &vectorE, &cubeE, &newRelationArray, |
---|
| 1878 | NIL(mdd_t *), NIL(mdd_t *), TRUE); |
---|
| 1879 | } else { |
---|
| 1880 | vectorE = NIL(array_t); |
---|
| 1881 | cubeE = NIL(mdd_t); |
---|
| 1882 | newRelationArray = tmpRelationArray; |
---|
| 1883 | } |
---|
| 1884 | fromE = bdd_cofactor(from, varNot); |
---|
| 1885 | relationArrayE = ImgGetCofactoredRelationArray(newRelationArray, varNot); |
---|
| 1886 | if (vector && newRelationArray != tmpRelationArray) |
---|
| 1887 | mdd_array_free(newRelationArray); |
---|
| 1888 | if (!bdd_is_tautology(fromE, 0)) { |
---|
| 1889 | resE = ImageByStaticInputSplit(info, vectorE, fromE, |
---|
| 1890 | relationArrayE, turnDepth, depth + 1); |
---|
| 1891 | if (findEssential) |
---|
| 1892 | foundEssentialDepthE = info->foundEssentialDepth; |
---|
| 1893 | if (vectorE) { |
---|
| 1894 | ImgVectorFree(vectorE); |
---|
| 1895 | if (!bdd_is_tautology(cubeE, 1)) { |
---|
| 1896 | tmp = resE; |
---|
| 1897 | resE = mdd_and(tmp, cubeE, 1, 1); |
---|
| 1898 | mdd_free(tmp); |
---|
| 1899 | } |
---|
| 1900 | mdd_free(cubeE); |
---|
| 1901 | } |
---|
| 1902 | nRecur++; |
---|
| 1903 | } else { |
---|
| 1904 | resE = mdd_zero(info->manager); |
---|
| 1905 | if (vectorE) { |
---|
| 1906 | ImgVectorFree(vectorE); |
---|
| 1907 | mdd_free(cubeE); |
---|
| 1908 | } |
---|
| 1909 | } |
---|
| 1910 | mdd_free(fromE); |
---|
| 1911 | mdd_array_free(relationArrayE); |
---|
| 1912 | |
---|
| 1913 | res = mdd_or(resT, resE, 1, 1); |
---|
| 1914 | if (info->option->verbosity) { |
---|
| 1915 | size = bdd_size(res); |
---|
| 1916 | if (size > info->maxIntermediateSize) |
---|
| 1917 | info->maxIntermediateSize = size; |
---|
| 1918 | if (info->option->printBddSize) { |
---|
| 1919 | fprintf(vis_stdout, "** tfm info: bdd_or(%d,%d) = %d\n", |
---|
| 1920 | bdd_size(resT), bdd_size(resE), size); |
---|
| 1921 | } |
---|
| 1922 | } |
---|
| 1923 | mdd_free(resT); |
---|
| 1924 | mdd_free(resE); |
---|
| 1925 | mdd_free(varNot); |
---|
| 1926 | } |
---|
| 1927 | |
---|
| 1928 | if (tmpVector && tmpVector != vector) |
---|
| 1929 | ImgVectorFree(tmpVector); |
---|
| 1930 | if (tmpRelationArray && tmpRelationArray != relationArray) |
---|
| 1931 | mdd_array_free(tmpRelationArray); |
---|
| 1932 | |
---|
| 1933 | if (and_) { |
---|
| 1934 | tmp = res; |
---|
| 1935 | res = mdd_and(tmp, and_, 1, 1); |
---|
| 1936 | if (info->option->verbosity) { |
---|
| 1937 | size = bdd_size(res); |
---|
| 1938 | if (size > info->maxIntermediateSize) |
---|
| 1939 | info->maxIntermediateSize = size; |
---|
| 1940 | if (info->option->printBddSize) { |
---|
| 1941 | fprintf(vis_stdout, "** tfm info: bdd_and(%d,%d) = %d\n", |
---|
| 1942 | bdd_size(tmp), bdd_size(and_), size); |
---|
| 1943 | } |
---|
| 1944 | } |
---|
| 1945 | mdd_free(tmp); |
---|
| 1946 | } |
---|
| 1947 | |
---|
| 1948 | if (info->option->debug) { |
---|
| 1949 | refResult = ImgImageByHybridWithStaticSplit(info, vector, from, |
---|
| 1950 | relationArray, |
---|
| 1951 | NIL(mdd_t), NIL(mdd_t)); |
---|
| 1952 | assert(mdd_equal(refResult, res)); |
---|
| 1953 | mdd_free(refResult); |
---|
| 1954 | } |
---|
| 1955 | |
---|
| 1956 | if (nRecur == 0) { |
---|
| 1957 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 1958 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 1959 | if (depth > info->maxDepth) |
---|
| 1960 | info->maxDepth = depth; |
---|
| 1961 | info->nLeaves++; |
---|
| 1962 | } |
---|
| 1963 | |
---|
| 1964 | if (findEssential) { |
---|
| 1965 | if (foundEssentialDepth == info->option->maxEssentialDepth) { |
---|
| 1966 | if (foundEssentialDepthT < foundEssentialDepthE) |
---|
| 1967 | foundEssentialDepth = foundEssentialDepthT; |
---|
| 1968 | else |
---|
| 1969 | foundEssentialDepth = foundEssentialDepthE; |
---|
| 1970 | } |
---|
| 1971 | info->foundEssentialDepth = foundEssentialDepth; |
---|
| 1972 | } |
---|
| 1973 | return(res); |
---|
| 1974 | } |
---|
| 1975 | |
---|
| 1976 | |
---|
| 1977 | /**Function******************************************************************** |
---|
| 1978 | |
---|
| 1979 | Synopsis [Computes an image by output splitting.] |
---|
| 1980 | |
---|
| 1981 | Description [Computes an image by output splitting.] |
---|
| 1982 | |
---|
| 1983 | SideEffects [] |
---|
| 1984 | |
---|
| 1985 | ******************************************************************************/ |
---|
| 1986 | static mdd_t * |
---|
| 1987 | ImageByOutputSplit(ImgTfmInfo_t *info, array_t *vector, mdd_t *constraint, |
---|
| 1988 | int depth) |
---|
| 1989 | { |
---|
| 1990 | array_t *newVector; |
---|
| 1991 | mdd_t *new_, *resT, *resE, *res, *resPart; |
---|
| 1992 | mdd_t *constrain, *tmp, *func; |
---|
| 1993 | int size, i, vectorSize; |
---|
| 1994 | array_t *vectorArray, *varArray; |
---|
| 1995 | ImgComponent_t *comp; |
---|
| 1996 | int hit; |
---|
| 1997 | int split, nGroups; |
---|
| 1998 | mdd_t *product, *refResult; |
---|
| 1999 | |
---|
| 2000 | ImgVectorConstrain(info, vector, constraint, NIL(array_t), |
---|
| 2001 | &newVector, &res, NIL(array_t *), |
---|
| 2002 | NIL(mdd_t *), NIL(mdd_t *), FALSE); |
---|
| 2003 | |
---|
| 2004 | info->nRecursion++; |
---|
| 2005 | if (info->nIntermediateVars) |
---|
| 2006 | size = ImgVectorFunctionSize(newVector); |
---|
| 2007 | else |
---|
| 2008 | size = array_n(newVector); |
---|
| 2009 | if (size <= 1) { |
---|
| 2010 | ImgVectorFree(newVector); |
---|
| 2011 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 2012 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 2013 | if (depth > info->maxDepth) |
---|
| 2014 | info->maxDepth = depth; |
---|
| 2015 | info->nLeaves++; |
---|
| 2016 | return(res); |
---|
| 2017 | } |
---|
| 2018 | |
---|
| 2019 | if (size == 2) { |
---|
| 2020 | hit = 1; |
---|
| 2021 | if (!info->imgCache || |
---|
| 2022 | !(resPart = ImgCacheLookupTable(info, info->imgCache, newVector, |
---|
| 2023 | NIL(bdd_t)))) { |
---|
| 2024 | hit = 0; |
---|
| 2025 | resPart = ImageFast2(info, newVector); |
---|
| 2026 | if (info->imgCache) |
---|
| 2027 | ImgCacheInsertTable(info->imgCache, newVector, NIL(bdd_t), resPart); |
---|
| 2028 | } |
---|
| 2029 | |
---|
| 2030 | if (info->option->debug) { |
---|
| 2031 | refResult = ImgImageByHybrid(info, newVector, NIL(mdd_t)); |
---|
| 2032 | assert(mdd_equal(refResult, resPart)); |
---|
| 2033 | mdd_free(refResult); |
---|
| 2034 | } |
---|
| 2035 | new_ = mdd_and(res, resPart, 1, 1); |
---|
| 2036 | if (info->option->verbosity) { |
---|
| 2037 | size = bdd_size(new_); |
---|
| 2038 | if (size > info->maxIntermediateSize) |
---|
| 2039 | info->maxIntermediateSize = size; |
---|
| 2040 | if (info->option->printBddSize) { |
---|
| 2041 | fprintf(vis_stdout, "** tfm info: bdd_and(%d,%d) = %d\n", |
---|
| 2042 | bdd_size(res), bdd_size(resPart), size); |
---|
| 2043 | } |
---|
| 2044 | } |
---|
| 2045 | mdd_free(res); |
---|
| 2046 | if (!info->imgCache || hit) { |
---|
| 2047 | mdd_free(resPart); |
---|
| 2048 | ImgVectorFree(newVector); |
---|
| 2049 | } |
---|
| 2050 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 2051 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 2052 | if (depth > info->maxDepth) |
---|
| 2053 | info->maxDepth = depth; |
---|
| 2054 | info->nLeaves++; |
---|
| 2055 | return(new_); |
---|
| 2056 | } |
---|
| 2057 | |
---|
| 2058 | if (info->imgCache) { |
---|
| 2059 | resPart = ImgCacheLookupTable(info, info->imgCache, newVector, NIL(mdd_t)); |
---|
| 2060 | if (resPart) { |
---|
| 2061 | if (info->option->debug) { |
---|
| 2062 | refResult = ImgImageByHybrid(info, newVector, NIL(mdd_t)); |
---|
| 2063 | assert(mdd_equal(refResult, resPart)); |
---|
| 2064 | mdd_free(refResult); |
---|
| 2065 | } |
---|
| 2066 | new_ = mdd_and(res, resPart, 1, 1); |
---|
| 2067 | if (info->option->verbosity) { |
---|
| 2068 | size = bdd_size(new_); |
---|
| 2069 | if (size > info->maxIntermediateSize) |
---|
| 2070 | info->maxIntermediateSize = size; |
---|
| 2071 | if (info->option->printBddSize) { |
---|
| 2072 | fprintf(vis_stdout, "** tfm info: bdd_and(%d,%d) = %d\n", |
---|
| 2073 | bdd_size(res), bdd_size(resPart), size); |
---|
| 2074 | } |
---|
| 2075 | } |
---|
| 2076 | mdd_free(res); |
---|
| 2077 | mdd_free(resPart); |
---|
| 2078 | res = new_; |
---|
| 2079 | ImgVectorFree(newVector); |
---|
| 2080 | return(res); |
---|
| 2081 | } |
---|
| 2082 | } |
---|
| 2083 | |
---|
| 2084 | /* compute disconnected component and best variable selection */ |
---|
| 2085 | vectorArray = array_alloc(array_t *, 0); |
---|
| 2086 | varArray = array_alloc(array_t *, 0); |
---|
| 2087 | nGroups = ImageDecomposeAndChooseSplitVar(info, newVector, NIL(mdd_t), 1, |
---|
| 2088 | info->option->outputSplit, 0, |
---|
| 2089 | vectorArray, varArray, &product, |
---|
| 2090 | NIL(array_t), NIL(array_t *), |
---|
| 2091 | NIL(mdd_t *), NIL(mdd_t *)); |
---|
| 2092 | vectorSize = array_n(newVector); |
---|
| 2093 | if ((!info->imgCache || nGroups <= 1) && !info->option->debug) |
---|
| 2094 | ImgVectorFree(newVector); |
---|
| 2095 | if (nGroups == 0) { |
---|
| 2096 | array_free(vectorArray); |
---|
| 2097 | array_free(varArray); |
---|
| 2098 | |
---|
| 2099 | if (info->option->debug) { |
---|
| 2100 | refResult = ImgImageByHybrid(info, newVector, NIL(mdd_t)); |
---|
| 2101 | assert(mdd_equal(refResult, product)); |
---|
| 2102 | mdd_free(refResult); |
---|
| 2103 | ImgVectorFree(newVector); |
---|
| 2104 | } |
---|
| 2105 | |
---|
| 2106 | new_ = mdd_and(res, product, 1, 1); |
---|
| 2107 | if (info->option->verbosity) { |
---|
| 2108 | size = bdd_size(new_); |
---|
| 2109 | if (size > info->maxIntermediateSize) |
---|
| 2110 | info->maxIntermediateSize = size; |
---|
| 2111 | if (info->option->printBddSize) { |
---|
| 2112 | fprintf(vis_stdout, "** tfm info: bdd_and(%d,%d) = %d\n", |
---|
| 2113 | bdd_size(res), bdd_size(product), size); |
---|
| 2114 | } |
---|
| 2115 | } |
---|
| 2116 | mdd_free(res); |
---|
| 2117 | mdd_free(product); |
---|
| 2118 | res = new_; |
---|
| 2119 | |
---|
| 2120 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 2121 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 2122 | if (depth > info->maxDepth) |
---|
| 2123 | info->maxDepth = depth; |
---|
| 2124 | info->nLeaves++; |
---|
| 2125 | return(res); |
---|
| 2126 | } else if (nGroups > 1) { |
---|
| 2127 | if (info->nDecomps == 0 || depth < info->topDecomp) |
---|
| 2128 | info->topDecomp = depth; |
---|
| 2129 | if (info->nDecomps == 0 || vectorSize > info->maxDecomp) |
---|
| 2130 | info->maxDecomp = vectorSize; |
---|
| 2131 | info->averageDecomp = (info->averageDecomp * (float)info->nDecomps + |
---|
| 2132 | (float)nGroups) / (float)(info->nDecomps + 1); |
---|
| 2133 | info->nDecomps++; |
---|
| 2134 | } |
---|
| 2135 | |
---|
| 2136 | product = mdd_one(info->manager); |
---|
| 2137 | for (i = 0; i < array_n(vectorArray); i++) { |
---|
| 2138 | vector = array_fetch(array_t *, vectorArray, i); |
---|
| 2139 | |
---|
| 2140 | hit = 1; |
---|
| 2141 | if (!info->imgCache || nGroups == 1 || |
---|
| 2142 | !(resPart = ImgCacheLookupTable(info, info->imgCache, vector, |
---|
| 2143 | NIL(bdd_t)))) { |
---|
| 2144 | hit = 0; |
---|
| 2145 | if (info->nIntermediateVars) |
---|
| 2146 | size = ImgVectorFunctionSize(vector); |
---|
| 2147 | else |
---|
| 2148 | size = array_n(vector); |
---|
| 2149 | if (size == 1) { |
---|
| 2150 | comp = array_fetch(ImgComponent_t *, vector, 0); |
---|
| 2151 | if (array_n(vector) > 1) |
---|
| 2152 | func = ImgGetComposedFunction(vector); |
---|
| 2153 | else |
---|
| 2154 | func = comp->func; |
---|
| 2155 | if (bdd_is_tautology(func, 1)) |
---|
| 2156 | resPart = mdd_dup(comp->var); |
---|
| 2157 | else if (bdd_is_tautology(func, 0)) |
---|
| 2158 | resPart = mdd_not(comp->var); |
---|
| 2159 | else |
---|
| 2160 | resPart = mdd_one(info->manager); |
---|
| 2161 | if (array_n(vector) > 1) |
---|
| 2162 | mdd_free(func); |
---|
| 2163 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 2164 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 2165 | if (depth > info->maxDepth) |
---|
| 2166 | info->maxDepth = depth; |
---|
| 2167 | info->nLeaves++; |
---|
| 2168 | } else if (size == 2) { |
---|
| 2169 | resPart = ImageFast2(info, vector); |
---|
| 2170 | info->averageDepth = (info->averageDepth * (float)info->nLeaves + |
---|
| 2171 | (float)depth) / (float)(info->nLeaves + 1); |
---|
| 2172 | if (depth > info->maxDepth) |
---|
| 2173 | info->maxDepth = depth; |
---|
| 2174 | info->nLeaves++; |
---|
| 2175 | } else { |
---|
| 2176 | split = array_fetch(int, varArray, i); |
---|
| 2177 | comp = array_fetch(ImgComponent_t *, vector, split); |
---|
| 2178 | constrain = comp->func; |
---|
| 2179 | resT = ImageByOutputSplit(info, vector, constrain, depth + 1); |
---|
| 2180 | tmp = mdd_not(constrain); |
---|
| 2181 | resE = ImageByOutputSplit(info, vector, tmp, depth + 1); |
---|
| 2182 | mdd_free(tmp); |
---|
| 2183 | |
---|
| 2184 | resPart = bdd_ite(comp->var, resT, resE, 1, 1, 1); |
---|
| 2185 | if (info->option->verbosity) { |
---|
| 2186 | size = bdd_size(resPart); |
---|
| 2187 | if (size > info->maxIntermediateSize) |
---|
| 2188 | info->maxIntermediateSize = size; |
---|
| 2189 | if (info->option->printBddSize) { |
---|
| 2190 | fprintf(vis_stdout, "** tfm info: bdd_ite(2,%d,%d) = %d\n", |
---|
| 2191 | bdd_size(resT), bdd_size(resE), size); |
---|
| 2192 | } |
---|
| 2193 | } |
---|
| 2194 | mdd_free(resT); |
---|
| 2195 | mdd_free(resE); |
---|
| 2196 | } |
---|
| 2197 | if (info->imgCache) |
---|
| 2198 | ImgCacheInsertTable(info->imgCache, vector, NIL(bdd_t), resPart); |
---|
| 2199 | } |
---|
| 2200 | if (!info->imgCache || hit) |
---|
| 2201 | ImgVectorFree(vector); |
---|
| 2202 | new_ = mdd_and(product, resPart, 1, 1); |
---|
| 2203 | if (info->option->verbosity) { |
---|
| 2204 | size = bdd_size(new_); |
---|
| 2205 | if (size > info->maxIntermediateSize) |
---|
| 2206 | info->maxIntermediateSize = size; |
---|
| 2207 | if (info->option->printBddSize) { |
---|
| 2208 | fprintf(vis_stdout, "** tfm info: bdd_and(%d,%d) = %d\n", |
---|
| 2209 | bdd_size(product), bdd_size(resPart), size); |
---|
| 2210 | } |
---|
| 2211 | } |
---|
| 2212 | mdd_free(product); |
---|
| 2213 | if (!info->imgCache || hit) |
---|
| 2214 | mdd_free(resPart); |
---|
| 2215 | product = new_; |
---|
| 2216 | } |
---|
| 2217 | |
---|
| 2218 | array_free(vectorArray); |
---|
| 2219 | array_free(varArray); |
---|
| 2220 | |
---|
| 2221 | if (info->imgCache && nGroups > 1) { |
---|
| 2222 | ImgCacheInsertTable(info->imgCache, newVector, NIL(mdd_t), |
---|
| 2223 | mdd_dup(product)); |
---|
| 2224 | } |
---|
| 2225 | |
---|
| 2226 | if (info->option->debug) { |
---|
| 2227 | refResult = ImgImageByHybrid(info, newVector, NIL(mdd_t)); |
---|
| 2228 | assert(mdd_equal(refResult, product)); |
---|
| 2229 | mdd_free(refResult); |
---|
| 2230 | if (!info->imgCache || nGroups == 1) |
---|
| 2231 | ImgVectorFree(newVector); |
---|
| 2232 | } |
---|
| 2233 | |
---|
| 2234 | new_ = mdd_and(res, product, 1, 1); |
---|
| 2235 | if (info->option->verbosity) { |
---|
| 2236 | size = bdd_size(new_); |
---|
| 2237 | if (size > info->maxIntermediateSize) |
---|
| 2238 | info->maxIntermediateSize = size; |
---|
| 2239 | if (info->option->printBddSize) { |
---|
| 2240 | fprintf(vis_stdout, "** tfm info: bdd_and(%d,%d) = %d\n", |
---|
| 2241 | bdd_size(res), bdd_size(product), size); |
---|
| 2242 | } |
---|
| 2243 | } |
---|
| 2244 | mdd_free(res); |
---|
| 2245 | mdd_free(product); |
---|
| 2246 | res = new_; |
---|
| 2247 | |
---|
| 2248 | return(res); |
---|
| 2249 | } |
---|
| 2250 | |
---|
| 2251 | |
---|
| 2252 | /**Function******************************************************************** |
---|
| 2253 | |
---|
| 2254 | Synopsis [Try to decompose function vector and find a splitting variable |
---|
| 2255 | for each decomposed block.] |
---|
| 2256 | |
---|
| 2257 | Description [Try to decompose function vector and find a splitting variable |
---|
| 2258 | for each decomposed block.] |
---|
| 2259 | |
---|
| 2260 | SideEffects [] |
---|
| 2261 | |
---|
| 2262 | ******************************************************************************/ |
---|
| 2263 | static int |
---|
| 2264 | ImageDecomposeAndChooseSplitVar(ImgTfmInfo_t *info, array_t *vector, |
---|
| 2265 | mdd_t *from, int splitMethod, int split, |
---|
| 2266 | int piSplitFlag, |
---|
| 2267 | array_t *vectorArray, array_t *varArray, |
---|
| 2268 | mdd_t **singles, array_t *relationArray, |
---|
| 2269 | array_t **newRelationArray, |
---|
| 2270 | mdd_t **cofactorCube, mdd_t **abstractCube) |
---|
| 2271 | { |
---|
| 2272 | int i, j, f, index; |
---|
| 2273 | int nGroups, nSingles, nChosen; |
---|
| 2274 | int nVars, nFuncs, arraySize; |
---|
| 2275 | char *varFlag; |
---|
| 2276 | int *funcGroup; |
---|
| 2277 | int *varOccur; |
---|
| 2278 | int bestVar; |
---|
| 2279 | int *stack, size; |
---|
| 2280 | ImgComponent_t *comp, *newComp; |
---|
| 2281 | array_t *partVector; |
---|
| 2282 | char *stackFlag; |
---|
| 2283 | char *support; |
---|
| 2284 | mdd_t *func; |
---|
| 2285 | int *varCost; |
---|
| 2286 | int decompose; |
---|
| 2287 | int res, constConstrain; |
---|
| 2288 | mdd_t *tmp, *cofactor, *abstract, *nsVar; |
---|
| 2289 | array_t *tmpRelationArray; |
---|
| 2290 | char *intermediateVarFlag; |
---|
| 2291 | int *intermediateVarFuncMap; |
---|
| 2292 | |
---|
| 2293 | if (info->useConstraint && from && splitMethod == 0) |
---|
| 2294 | decompose = 0; |
---|
| 2295 | else |
---|
| 2296 | decompose = 1; |
---|
| 2297 | |
---|
| 2298 | arraySize = array_n(vector); |
---|
| 2299 | if (info->nIntermediateVars) |
---|
| 2300 | nFuncs = ImgVectorFunctionSize(vector); |
---|
| 2301 | else |
---|
| 2302 | nFuncs = arraySize; |
---|
| 2303 | nVars = info->nVars; |
---|
| 2304 | |
---|
| 2305 | *singles = mdd_one(info->manager); |
---|
| 2306 | if (relationArray) { |
---|
| 2307 | cofactor = mdd_one(info->manager); |
---|
| 2308 | abstract = mdd_one(info->manager); |
---|
| 2309 | } else { |
---|
| 2310 | cofactor = NIL(mdd_t); |
---|
| 2311 | abstract = NIL(mdd_t); |
---|
| 2312 | } |
---|
| 2313 | |
---|
| 2314 | if (decompose) { |
---|
| 2315 | funcGroup = ALLOC(int, arraySize); |
---|
| 2316 | memset(funcGroup, 0, sizeof(int) * arraySize); |
---|
| 2317 | varFlag = ALLOC(char, nVars); |
---|
| 2318 | memset(varFlag, 0, sizeof(char) * nVars); |
---|
| 2319 | stack = ALLOC(int, arraySize); |
---|
| 2320 | stackFlag = ALLOC(char, arraySize); |
---|
| 2321 | memset(stackFlag, 0, sizeof(char) * arraySize); |
---|
| 2322 | if (arraySize > nFuncs) { |
---|
| 2323 | intermediateVarFlag = ALLOC(char, nVars); |
---|
| 2324 | memset(intermediateVarFlag, 0, sizeof(char) * nVars); |
---|
| 2325 | intermediateVarFuncMap = ALLOC(int, nVars); |
---|
| 2326 | memset(intermediateVarFuncMap, 0, sizeof(int) * nVars); |
---|
| 2327 | for (i = 0; i < arraySize; i++) { |
---|
| 2328 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
| 2329 | if (comp->intermediate) { |
---|
| 2330 | index = (int)bdd_top_var_id(comp->var); |
---|
| 2331 | intermediateVarFlag[index] = 1; |
---|
| 2332 | intermediateVarFuncMap[index] = i; |
---|
| 2333 | } |
---|
| 2334 | } |
---|
| 2335 | } else { |
---|
| 2336 | /* To remove compiler warnings */ |
---|
| 2337 | intermediateVarFlag = NIL(char); |
---|
| 2338 | intermediateVarFuncMap = NIL(int); |
---|
| 2339 | } |
---|
| 2340 | } else { |
---|
| 2341 | /* To remove compiler warnings */ |
---|
| 2342 | funcGroup = NIL(int); |
---|
| 2343 | varFlag = NIL(char); |
---|
| 2344 | stack = NIL(int); |
---|
| 2345 | stackFlag = NIL(char); |
---|
| 2346 | intermediateVarFlag = NIL(char); |
---|
| 2347 | intermediateVarFuncMap = NIL(int); |
---|
| 2348 | } |
---|
| 2349 | varOccur = ALLOC(int, nVars); |
---|
| 2350 | if (splitMethod == 0 && split > 0) |
---|
| 2351 | varCost = ALLOC(int, nVars); |
---|
| 2352 | else |
---|
| 2353 | varCost = NIL(int); |
---|
| 2354 | |
---|
| 2355 | nGroups = 0; |
---|
| 2356 | nSingles = 0; |
---|
| 2357 | nChosen = 0; |
---|
| 2358 | while (nChosen < nFuncs) { |
---|
| 2359 | bestVar = -1; |
---|
| 2360 | memset(varOccur, 0, sizeof(int) * nVars); |
---|
| 2361 | if (varCost) |
---|
| 2362 | memset(varCost, 0, sizeof(int) * nVars); |
---|
| 2363 | |
---|
| 2364 | if (decompose) { |
---|
| 2365 | size = 0; |
---|
| 2366 | for (i = 0; i < arraySize; i++) { |
---|
| 2367 | if (funcGroup[i] == 0) { |
---|
| 2368 | stack[0] = i; |
---|
| 2369 | size = 1; |
---|
| 2370 | stackFlag[i] = 1; |
---|
| 2371 | break; |
---|
| 2372 | } |
---|
| 2373 | } |
---|
| 2374 | assert(size == 1); |
---|
| 2375 | |
---|
| 2376 | while (size) { |
---|
| 2377 | size--; |
---|
| 2378 | f = stack[size]; |
---|
| 2379 | funcGroup[f] = nGroups + 1; |
---|
| 2380 | comp = array_fetch(ImgComponent_t *, vector, f); |
---|
| 2381 | nChosen++; |
---|
| 2382 | if (nChosen == arraySize) |
---|
| 2383 | break; |
---|
| 2384 | support = comp->support; |
---|
| 2385 | if (comp->intermediate) { |
---|
| 2386 | index = (int)bdd_top_var_id(comp->var); |
---|
| 2387 | support[index] = 1; |
---|
| 2388 | } |
---|
| 2389 | for (i = 0; i < nVars; i++) { |
---|
| 2390 | if (!support[i]) |
---|
| 2391 | continue; |
---|
| 2392 | varOccur[i]++; |
---|
| 2393 | if (varFlag[i]) |
---|
| 2394 | continue; |
---|
| 2395 | varFlag[i] = 1; |
---|
| 2396 | for (j = 0; j < arraySize; j++) { |
---|
| 2397 | if (j == f || stackFlag[j]) |
---|
| 2398 | continue; |
---|
| 2399 | comp = array_fetch(ImgComponent_t *, vector, j); |
---|
| 2400 | if (arraySize != nFuncs) { |
---|
| 2401 | if (intermediateVarFlag[i] && comp->intermediate) { |
---|
| 2402 | index = (int)bdd_top_var_id(comp->var); |
---|
| 2403 | if (index == i) { |
---|
| 2404 | if (funcGroup[j] == 0) { |
---|
| 2405 | stack[size] = j; |
---|
| 2406 | size++; |
---|
| 2407 | stackFlag[j] = 1; |
---|
| 2408 | } |
---|
| 2409 | FindIntermediateSupport(vector, comp, nVars, nGroups, |
---|
| 2410 | stack, stackFlag, funcGroup, &size, |
---|
| 2411 | intermediateVarFlag, |
---|
| 2412 | intermediateVarFuncMap); |
---|
| 2413 | continue; |
---|
| 2414 | } |
---|
| 2415 | } |
---|
| 2416 | } |
---|
| 2417 | if (funcGroup[j]) |
---|
| 2418 | continue; |
---|
| 2419 | if (comp->support[i]) { |
---|
| 2420 | stack[size] = j; |
---|
| 2421 | size++; |
---|
| 2422 | stackFlag[j] = 1; |
---|
| 2423 | } |
---|
| 2424 | } |
---|
| 2425 | } |
---|
| 2426 | if (comp->intermediate) { |
---|
| 2427 | index = (int)bdd_top_var_id(comp->var); |
---|
| 2428 | support[index] = 0; |
---|
| 2429 | } |
---|
| 2430 | } |
---|
| 2431 | } else { |
---|
| 2432 | for (i = 0; i < arraySize; i++) { |
---|
| 2433 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
| 2434 | support = comp->support; |
---|
| 2435 | for (j = 0; j < nVars; j++) { |
---|
| 2436 | if (support[j]) |
---|
| 2437 | varOccur[j]++; |
---|
| 2438 | } |
---|
| 2439 | } |
---|
| 2440 | nChosen = nFuncs; |
---|
| 2441 | } |
---|
| 2442 | |
---|
| 2443 | nGroups++; |
---|
| 2444 | |
---|
| 2445 | /* Collect the functions which belong to the current group */ |
---|
| 2446 | partVector = array_alloc(ImgComponent_t *, 0); |
---|
| 2447 | for (i = 0; i < arraySize; i++) { |
---|
| 2448 | if (decompose == 0 || funcGroup[i] == nGroups) { |
---|
| 2449 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
| 2450 | newComp = ImgComponentCopy(info, comp); |
---|
| 2451 | array_insert_last(ImgComponent_t *, partVector, newComp); |
---|
| 2452 | } |
---|
| 2453 | } |
---|
| 2454 | if (arraySize == nFuncs) |
---|
| 2455 | size = array_n(partVector); |
---|
| 2456 | else |
---|
| 2457 | size = ImgVectorFunctionSize(partVector); |
---|
| 2458 | if (size == 1) { |
---|
| 2459 | nSingles++; |
---|
| 2460 | if (size == array_n(partVector)) { |
---|
| 2461 | comp = array_fetch(ImgComponent_t *, partVector, 0); |
---|
| 2462 | func = comp->func; |
---|
| 2463 | } else { |
---|
| 2464 | comp = ImgGetLatchComponent(partVector); |
---|
| 2465 | func = ImgGetComposedFunction(partVector); |
---|
| 2466 | } |
---|
| 2467 | if (from) { |
---|
| 2468 | constConstrain = ImgConstConstrain(func, from); |
---|
| 2469 | if (constConstrain == 1) |
---|
| 2470 | res = 1; |
---|
| 2471 | else if (constConstrain == 0) |
---|
| 2472 | res = 0; |
---|
| 2473 | else |
---|
| 2474 | res = 2; |
---|
| 2475 | } else { |
---|
| 2476 | if (bdd_is_tautology(func, 1)) |
---|
| 2477 | res = 1; |
---|
| 2478 | else if (bdd_is_tautology(func, 0)) |
---|
| 2479 | res = 0; |
---|
| 2480 | else |
---|
| 2481 | res = 2; |
---|
| 2482 | } |
---|
| 2483 | if (size != array_n(partVector)) |
---|
| 2484 | mdd_free(func); |
---|
| 2485 | if (res == 1) { |
---|
| 2486 | tmp = *singles; |
---|
| 2487 | *singles = mdd_and(tmp, comp->var, 1, 1); |
---|
| 2488 | mdd_free(tmp); |
---|
| 2489 | } else if (res == 0) { |
---|
| 2490 | tmp = *singles; |
---|
| 2491 | *singles = mdd_and(tmp, comp->var, 1, 0); |
---|
| 2492 | mdd_free(tmp); |
---|
| 2493 | } |
---|
| 2494 | if (abstract) { |
---|
| 2495 | nsVar = ImgSubstitute(comp->var, info->functionData, Img_D2R_c); |
---|
| 2496 | tmp = abstract; |
---|
| 2497 | abstract = mdd_and(tmp, nsVar, 1, 1); |
---|
| 2498 | mdd_free(tmp); |
---|
| 2499 | mdd_free(nsVar); |
---|
| 2500 | } |
---|
| 2501 | |
---|
| 2502 | ImgVectorFree(partVector); |
---|
| 2503 | continue; |
---|
| 2504 | } |
---|
| 2505 | |
---|
| 2506 | array_insert_last(array_t *, vectorArray, partVector); |
---|
| 2507 | |
---|
| 2508 | if (splitMethod == 0) { /* input splitting */ |
---|
| 2509 | if (decompose) { |
---|
| 2510 | if (info->option->findDecompVar) { |
---|
| 2511 | bestVar = FindDecomposableVariable(info, partVector); |
---|
| 2512 | if (bestVar != -1) |
---|
| 2513 | split = -1; |
---|
| 2514 | } |
---|
| 2515 | } else if (from) { |
---|
| 2516 | comp = ImgComponentAlloc(info); |
---|
| 2517 | comp->func = from; |
---|
| 2518 | ImgComponentGetSupport(comp); |
---|
| 2519 | for (i = 0; i < nVars; i++) { |
---|
| 2520 | if (comp->support[i]) |
---|
| 2521 | varOccur[i]++; |
---|
| 2522 | } |
---|
| 2523 | comp->func = NIL(mdd_t); |
---|
| 2524 | ImgComponentFree(comp); |
---|
| 2525 | } |
---|
| 2526 | |
---|
| 2527 | if (split != -1) { |
---|
| 2528 | bestVar = ChooseInputSplittingVariable(info, partVector, from, |
---|
| 2529 | info->option->inputSplit, decompose, |
---|
| 2530 | info->option->piSplitFlag, varOccur); |
---|
| 2531 | |
---|
| 2532 | } |
---|
| 2533 | } else { /* output splitting */ |
---|
| 2534 | bestVar = ChooseOutputSplittingVariable(info, partVector, |
---|
| 2535 | info->option->outputSplit); |
---|
| 2536 | } |
---|
| 2537 | assert(bestVar != -1); |
---|
| 2538 | array_insert_last(int, varArray, bestVar); |
---|
| 2539 | } |
---|
| 2540 | |
---|
| 2541 | if (newRelationArray) |
---|
| 2542 | *newRelationArray = relationArray; |
---|
| 2543 | if (cofactorCube && abstractCube) { |
---|
| 2544 | if (cofactor) |
---|
| 2545 | *cofactorCube = cofactor; |
---|
| 2546 | if (abstract) |
---|
| 2547 | *abstractCube = abstract; |
---|
| 2548 | } else { |
---|
| 2549 | if (cofactor) { |
---|
| 2550 | if (bdd_is_tautology(cofactor, 1)) |
---|
| 2551 | mdd_free(cofactor); |
---|
| 2552 | else { |
---|
| 2553 | *newRelationArray = ImgGetCofactoredRelationArray(relationArray, |
---|
| 2554 | cofactor); |
---|
| 2555 | mdd_free(cofactor); |
---|
| 2556 | } |
---|
| 2557 | } |
---|
| 2558 | if (abstract) { |
---|
| 2559 | if (bdd_is_tautology(abstract, 1)) |
---|
| 2560 | mdd_free(abstract); |
---|
| 2561 | else { |
---|
| 2562 | tmpRelationArray = *newRelationArray; |
---|
| 2563 | *newRelationArray = ImgGetAbstractedRelationArray(info->manager, |
---|
| 2564 | tmpRelationArray, |
---|
| 2565 | abstract); |
---|
| 2566 | mdd_free(abstract); |
---|
| 2567 | if (tmpRelationArray != relationArray) |
---|
| 2568 | mdd_array_free(tmpRelationArray); |
---|
| 2569 | } |
---|
| 2570 | } |
---|
| 2571 | } |
---|
| 2572 | |
---|
| 2573 | if (decompose) { |
---|
| 2574 | FREE(stackFlag); |
---|
| 2575 | FREE(stack); |
---|
| 2576 | FREE(funcGroup); |
---|
| 2577 | FREE(varFlag); |
---|
| 2578 | if (arraySize > nFuncs) { |
---|
| 2579 | FREE(intermediateVarFlag); |
---|
| 2580 | FREE(intermediateVarFuncMap); |
---|
| 2581 | } |
---|
| 2582 | } |
---|
| 2583 | FREE(varOccur); |
---|
| 2584 | if (varCost) |
---|
| 2585 | FREE(varCost); |
---|
| 2586 | nGroups -= nSingles; |
---|
| 2587 | return(nGroups); |
---|
| 2588 | } |
---|
| 2589 | |
---|
| 2590 | |
---|
| 2591 | /**Function******************************************************************** |
---|
| 2592 | |
---|
| 2593 | Synopsis [Fast image computation when function vector contains only two |
---|
| 2594 | functions.] |
---|
| 2595 | |
---|
| 2596 | Description [Fast image computation when function vector contains only two |
---|
| 2597 | functions.] |
---|
| 2598 | |
---|
| 2599 | SideEffects [] |
---|
| 2600 | |
---|
| 2601 | ******************************************************************************/ |
---|
| 2602 | static mdd_t * |
---|
| 2603 | ImageFast2(ImgTfmInfo_t *info, array_t *vector) |
---|
| 2604 | { |
---|
| 2605 | mdd_t *f1, *f2; |
---|
| 2606 | int f21n, f21p; |
---|
| 2607 | mdd_t *res, *resp, *resn; |
---|
| 2608 | mdd_t *i1, *i2; |
---|
| 2609 | ImgComponent_t *comp; |
---|
| 2610 | mdd_t *refResult; |
---|
| 2611 | int i, freeFlag, size; |
---|
| 2612 | array_t *varArray, *funcArray; |
---|
| 2613 | |
---|
| 2614 | assert(ImgVectorFunctionSize(vector) == 2); |
---|
| 2615 | |
---|
| 2616 | if (info->option->debug) |
---|
| 2617 | refResult = ImgImageByHybrid(info, vector, NIL(mdd_t)); |
---|
| 2618 | else |
---|
| 2619 | refResult = NIL(mdd_t); |
---|
| 2620 | |
---|
| 2621 | if (array_n(vector) == 2) { |
---|
| 2622 | comp = array_fetch(ImgComponent_t *, vector, 0); |
---|
| 2623 | f1 = comp->func; |
---|
| 2624 | i1 = comp->var; |
---|
| 2625 | |
---|
| 2626 | comp = array_fetch(ImgComponent_t *, vector, 1); |
---|
| 2627 | f2 = comp->func; |
---|
| 2628 | i2 = comp->var; |
---|
| 2629 | |
---|
| 2630 | freeFlag = 0; |
---|
| 2631 | } else { |
---|
| 2632 | varArray = array_alloc(mdd_t *, 0); |
---|
| 2633 | funcArray = array_alloc(mdd_t *, 0); |
---|
| 2634 | |
---|
| 2635 | i1 = NIL(mdd_t); |
---|
| 2636 | i2 = NIL(mdd_t); |
---|
| 2637 | f1 = NIL(mdd_t); |
---|
| 2638 | f2 = NIL(mdd_t); |
---|
| 2639 | |
---|
| 2640 | for (i = 0; i < array_n(vector); i++) { |
---|
| 2641 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
| 2642 | if (comp->intermediate) { |
---|
| 2643 | array_insert_last(mdd_t *, varArray, comp->var); |
---|
| 2644 | array_insert_last(mdd_t *, funcArray, comp->func); |
---|
| 2645 | continue; |
---|
| 2646 | } |
---|
| 2647 | if (f1) { |
---|
| 2648 | f2 = comp->func; |
---|
| 2649 | i2 = comp->var; |
---|
| 2650 | } else { |
---|
| 2651 | f1 = comp->func; |
---|
| 2652 | i1 = comp->var; |
---|
| 2653 | } |
---|
| 2654 | } |
---|
| 2655 | |
---|
| 2656 | f1 = bdd_vector_compose(f1, varArray, funcArray); |
---|
| 2657 | f2 = bdd_vector_compose(f2, varArray, funcArray); |
---|
| 2658 | array_free(varArray); |
---|
| 2659 | array_free(funcArray); |
---|
| 2660 | freeFlag = 1; |
---|
| 2661 | } |
---|
| 2662 | |
---|
| 2663 | ImgCheckConstConstrain(f1, f2, &f21p, &f21n); |
---|
| 2664 | |
---|
| 2665 | if (f21p == 1) |
---|
| 2666 | resp = mdd_dup(i2); |
---|
| 2667 | else if (f21p == 0) |
---|
| 2668 | resp = mdd_not(i2); |
---|
| 2669 | else |
---|
| 2670 | resp = mdd_one(info->manager); |
---|
| 2671 | |
---|
| 2672 | if (f21n == 1) |
---|
| 2673 | resn = mdd_dup(i2); |
---|
| 2674 | else if (f21n == 0) |
---|
| 2675 | resn = mdd_not(i2); |
---|
| 2676 | else |
---|
| 2677 | resn = mdd_one(info->manager); |
---|
| 2678 | |
---|
| 2679 | /* merge final result */ |
---|
| 2680 | res = bdd_ite(i1, resp, resn, 1, 1, 1); |
---|
| 2681 | if (info->option->verbosity) { |
---|
| 2682 | size = bdd_size(res); |
---|
| 2683 | if (size > info->maxIntermediateSize) |
---|
| 2684 | info->maxIntermediateSize = size; |
---|
| 2685 | if (info->option->printBddSize) { |
---|
| 2686 | fprintf(vis_stdout, "** tfm info: bdd_ite(2,%d,%d) = %d\n", |
---|
| 2687 | bdd_size(resp), bdd_size(resn), size); |
---|
| 2688 | } |
---|
| 2689 | } |
---|
| 2690 | mdd_free(resp); |
---|
| 2691 | mdd_free(resn); |
---|
| 2692 | if (freeFlag) { |
---|
| 2693 | mdd_free(f1); |
---|
| 2694 | mdd_free(f2); |
---|
| 2695 | } |
---|
| 2696 | |
---|
| 2697 | if (info->option->debug) { |
---|
| 2698 | assert(mdd_equal(refResult, res)); |
---|
| 2699 | mdd_free(refResult); |
---|
| 2700 | } |
---|
| 2701 | |
---|
| 2702 | return(res); |
---|
| 2703 | } |
---|
| 2704 | |
---|
| 2705 | |
---|
| 2706 | /**Function******************************************************************** |
---|
| 2707 | |
---|
| 2708 | Synopsis [Finds a decomposable variable (articulation)] |
---|
| 2709 | |
---|
| 2710 | Description [Finds a decomposable variable (articulation)] |
---|
| 2711 | |
---|
| 2712 | SideEffects [] |
---|
| 2713 | |
---|
| 2714 | ******************************************************************************/ |
---|
| 2715 | static int |
---|
| 2716 | FindDecomposableVariable(ImgTfmInfo_t *info, array_t *vector) |
---|
| 2717 | { |
---|
| 2718 | int i, j, f, split; |
---|
| 2719 | int nChosen, index, varId; |
---|
| 2720 | int nVars, nFuncs; |
---|
| 2721 | char *varFlag; |
---|
| 2722 | int *funcGroup; |
---|
| 2723 | int *stack, size; |
---|
| 2724 | ImgComponent_t *comp; |
---|
| 2725 | char *stackFlag; |
---|
| 2726 | char *support; |
---|
| 2727 | int arraySize; |
---|
| 2728 | char *intermediateVarFlag; |
---|
| 2729 | int *intermediateVarFuncMap; |
---|
| 2730 | |
---|
| 2731 | arraySize = array_n(vector); |
---|
| 2732 | if (info->nIntermediateVars) |
---|
| 2733 | nFuncs = ImgVectorFunctionSize(vector); |
---|
| 2734 | else |
---|
| 2735 | nFuncs = arraySize; |
---|
| 2736 | nVars = info->nVars; |
---|
| 2737 | |
---|
| 2738 | funcGroup = ALLOC(int, arraySize); |
---|
| 2739 | varFlag = ALLOC(char, nVars); |
---|
| 2740 | stack = ALLOC(int, arraySize); |
---|
| 2741 | stackFlag = ALLOC(char, arraySize); |
---|
| 2742 | |
---|
| 2743 | if (arraySize > nFuncs) { |
---|
| 2744 | intermediateVarFlag = ALLOC(char, nVars); |
---|
| 2745 | memset(intermediateVarFlag, 0, sizeof(char) * nVars); |
---|
| 2746 | intermediateVarFuncMap = ALLOC(int, nVars); |
---|
| 2747 | memset(intermediateVarFuncMap, 0, sizeof(int) * nVars); |
---|
| 2748 | for (i = 0; i < arraySize; i++) { |
---|
| 2749 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
| 2750 | if (comp->intermediate) { |
---|
| 2751 | index = (int)bdd_top_var_id(comp->var); |
---|
| 2752 | intermediateVarFlag[index] = 1; |
---|
| 2753 | intermediateVarFuncMap[index] = i; |
---|
| 2754 | } |
---|
| 2755 | } |
---|
| 2756 | } else { |
---|
| 2757 | intermediateVarFlag = NIL(char); |
---|
| 2758 | intermediateVarFuncMap = NIL(int); |
---|
| 2759 | } |
---|
| 2760 | |
---|
| 2761 | varId = -1; |
---|
| 2762 | for (split = 0; split < nVars; split++) { |
---|
| 2763 | if (intermediateVarFlag[split]) |
---|
| 2764 | continue; |
---|
| 2765 | |
---|
| 2766 | memset(funcGroup, 0, sizeof(int) * arraySize); |
---|
| 2767 | memset(varFlag, 0, sizeof(char) * nVars); |
---|
| 2768 | memset(stackFlag, 0, sizeof(char) * arraySize); |
---|
| 2769 | |
---|
| 2770 | varFlag[split] = 1; |
---|
| 2771 | nChosen = 0; |
---|
| 2772 | |
---|
| 2773 | stack[0] = 0; |
---|
| 2774 | size = 1; |
---|
| 2775 | stackFlag[0] = 1; |
---|
| 2776 | |
---|
| 2777 | while (size) { |
---|
| 2778 | size--; |
---|
| 2779 | f = stack[size]; |
---|
| 2780 | funcGroup[f] = 1; |
---|
| 2781 | comp = array_fetch(ImgComponent_t *, vector, f); |
---|
| 2782 | nChosen++; |
---|
| 2783 | if (nChosen == arraySize) |
---|
| 2784 | break; |
---|
| 2785 | support = comp->support; |
---|
| 2786 | if (comp->intermediate) { |
---|
| 2787 | index = (int)bdd_top_var_id(comp->var); |
---|
| 2788 | support[index] = 1; |
---|
| 2789 | } |
---|
| 2790 | for (i = 0; i < nVars; i++) { |
---|
| 2791 | if (!support[i]) |
---|
| 2792 | continue; |
---|
| 2793 | if (varFlag[i]) |
---|
| 2794 | continue; |
---|
| 2795 | varFlag[i] = 1; |
---|
| 2796 | for (j = 0; j < nFuncs; j++) { |
---|
| 2797 | if (j == f || stackFlag[j]) |
---|
| 2798 | continue; |
---|
| 2799 | comp = array_fetch(ImgComponent_t *, vector, j); |
---|
| 2800 | if (arraySize != nFuncs) { |
---|
| 2801 | if (intermediateVarFlag[i] && comp->intermediate) { |
---|
| 2802 | index = (int)bdd_top_var_id(comp->var); |
---|
| 2803 | if (index == i) { |
---|
| 2804 | if (funcGroup[j] == 0) { |
---|
| 2805 | stack[size] = j; |
---|
| 2806 | size++; |
---|
| 2807 | stackFlag[j] = 1; |
---|
| 2808 | } |
---|
| 2809 | FindIntermediateSupport(vector, comp, nVars, 0, |
---|
| 2810 | stack, stackFlag, funcGroup, &size, |
---|
| 2811 | intermediateVarFlag, |
---|
| 2812 | intermediateVarFuncMap); |
---|
| 2813 | continue; |
---|
| 2814 | } |
---|
| 2815 | } |
---|
| 2816 | } |
---|
| 2817 | if (funcGroup[j]) |
---|
| 2818 | continue; |
---|
| 2819 | if (comp->support[i]) { |
---|
| 2820 | stack[size] = j; |
---|
| 2821 | size++; |
---|
| 2822 | stackFlag[j] = 1; |
---|
| 2823 | } |
---|
| 2824 | } |
---|
| 2825 | } |
---|
| 2826 | if (comp->intermediate) { |
---|
| 2827 | index = (int)bdd_top_var_id(comp->var); |
---|
| 2828 | support[index] = 0; |
---|
| 2829 | } |
---|
| 2830 | } |
---|
| 2831 | |
---|
| 2832 | if (nChosen < nFuncs) { |
---|
| 2833 | varId = split; |
---|
| 2834 | break; |
---|
| 2835 | } |
---|
| 2836 | } |
---|
| 2837 | |
---|
| 2838 | FREE(stackFlag); |
---|
| 2839 | FREE(stack); |
---|
| 2840 | FREE(funcGroup); |
---|
| 2841 | FREE(varFlag); |
---|
| 2842 | if (arraySize > nFuncs) { |
---|
| 2843 | FREE(intermediateVarFlag); |
---|
| 2844 | FREE(intermediateVarFuncMap); |
---|
| 2845 | } |
---|
| 2846 | |
---|
| 2847 | return(varId); |
---|
| 2848 | } |
---|
| 2849 | |
---|
| 2850 | |
---|
| 2851 | /**Function******************************************************************** |
---|
| 2852 | |
---|
| 2853 | Synopsis [Checks the support of image.] |
---|
| 2854 | |
---|
| 2855 | Description [Checks the support of image.] |
---|
| 2856 | |
---|
| 2857 | SideEffects [] |
---|
| 2858 | |
---|
| 2859 | ******************************************************************************/ |
---|
| 2860 | static int |
---|
| 2861 | TfmCheckImageValidity(ImgTfmInfo_t *info, mdd_t *image) |
---|
| 2862 | { |
---|
| 2863 | int i, id; |
---|
| 2864 | array_t *supportIds; |
---|
| 2865 | int status = 1; |
---|
| 2866 | |
---|
| 2867 | supportIds = mdd_get_bdd_support_ids(info->manager, image); |
---|
| 2868 | for (i = 0; i < array_n(supportIds); i++) { |
---|
| 2869 | id = array_fetch(int, supportIds, i); |
---|
| 2870 | if (st_lookup(info->quantifyVarsTable, (char *)(long)id, NIL(char *))) { |
---|
| 2871 | fprintf(vis_stderr, |
---|
| 2872 | "** tfm error: image contains a primary input variable (%d)\n", |
---|
| 2873 | id); |
---|
| 2874 | status = 0; |
---|
| 2875 | } |
---|
| 2876 | if (st_lookup(info->rangeVarsTable, (char *)(long)id, NIL(char *))) { |
---|
| 2877 | fprintf(vis_stderr, |
---|
| 2878 | "** tfm error: image contains a range variable (%d)\n", id); |
---|
| 2879 | status = 0; |
---|
| 2880 | } |
---|
| 2881 | if (info->intermediateVarsTable && |
---|
| 2882 | st_lookup(info->intermediateVarsTable, (char *)(long)id, NIL(char *))) { |
---|
| 2883 | fprintf(vis_stderr, |
---|
| 2884 | "** tfm error: image contains an intermediate variable (%d)\n", |
---|
| 2885 | id); |
---|
| 2886 | status = 0; |
---|
| 2887 | } |
---|
| 2888 | } |
---|
| 2889 | array_free(supportIds); |
---|
| 2890 | return(status); |
---|
| 2891 | } |
---|
| 2892 | |
---|
| 2893 | |
---|
| 2894 | /**Function******************************************************************** |
---|
| 2895 | |
---|
| 2896 | Synopsis [Finds all other fanin intermediate functions of a given |
---|
| 2897 | intermediate function.] |
---|
| 2898 | |
---|
| 2899 | Description [Finds all other fanin intermediate functions of a given |
---|
| 2900 | intermediate function. Adds the only intermediate functions are not in |
---|
| 2901 | the stack. Updates the stack information.] |
---|
| 2902 | |
---|
| 2903 | SideEffects [] |
---|
| 2904 | |
---|
| 2905 | ******************************************************************************/ |
---|
| 2906 | static void |
---|
| 2907 | FindIntermediateSupport(array_t *vector, ImgComponent_t *comp, |
---|
| 2908 | int nVars, int nGroups, |
---|
| 2909 | int *stack, char *stackFlag, int *funcGroup, int *size, |
---|
| 2910 | char *intermediateVarFlag, int *intermediateVarFuncMap) |
---|
| 2911 | { |
---|
| 2912 | int i, f; |
---|
| 2913 | ImgComponent_t *intermediateComp; |
---|
| 2914 | |
---|
| 2915 | for (i = 0; i < nVars; i++) { |
---|
| 2916 | if (comp->support[i]) { |
---|
| 2917 | if (intermediateVarFlag[i]) { |
---|
| 2918 | f = intermediateVarFuncMap[i]; |
---|
| 2919 | if (stackFlag[f] || funcGroup[f] == nGroups + 1) |
---|
| 2920 | continue; |
---|
| 2921 | stack[*size] = f; |
---|
| 2922 | (*size)++; |
---|
| 2923 | stackFlag[f] = 1; |
---|
| 2924 | |
---|
| 2925 | intermediateComp = array_fetch(ImgComponent_t *, vector, f); |
---|
| 2926 | FindIntermediateSupport(vector, intermediateComp, nVars, nGroups, |
---|
| 2927 | stack, stackFlag, funcGroup, size, |
---|
| 2928 | intermediateVarFlag, intermediateVarFuncMap); |
---|
| 2929 | } |
---|
| 2930 | } |
---|
| 2931 | } |
---|
| 2932 | } |
---|
| 2933 | |
---|
| 2934 | |
---|
| 2935 | /**Function******************************************************************** |
---|
| 2936 | |
---|
| 2937 | Synopsis [Print the information of the decomposition.] |
---|
| 2938 | |
---|
| 2939 | Description [Print the information of the decomposition.] |
---|
| 2940 | |
---|
| 2941 | SideEffects [] |
---|
| 2942 | |
---|
| 2943 | ******************************************************************************/ |
---|
| 2944 | static void |
---|
| 2945 | PrintVectorDecomposition(ImgTfmInfo_t *info, array_t *vectorArray, |
---|
| 2946 | array_t *varArray) |
---|
| 2947 | { |
---|
| 2948 | int i, j, n; |
---|
| 2949 | int var, index; |
---|
| 2950 | ImgComponent_t *comp; |
---|
| 2951 | array_t *vector; |
---|
| 2952 | |
---|
| 2953 | fprintf(vis_stdout, "** tfm info: vector decomposition\n"); |
---|
| 2954 | n = array_n(vectorArray); |
---|
| 2955 | for (i = 0; i < n; i++) { |
---|
| 2956 | vector = array_fetch(array_t *, vectorArray, i); |
---|
| 2957 | var = array_fetch(int, varArray, i); |
---|
| 2958 | fprintf(vis_stdout, "Group[%d] : num = %d, split = %d\n", |
---|
| 2959 | i, array_n(vector), var); |
---|
| 2960 | for (j = 0; j < array_n(vector); j++) { |
---|
| 2961 | comp = array_fetch(ImgComponent_t *, vector, j); |
---|
| 2962 | index = (int)bdd_top_var_id(comp->var); |
---|
| 2963 | fprintf(vis_stdout, " %d", index); |
---|
| 2964 | } |
---|
| 2965 | fprintf(vis_stdout, "\n"); |
---|
| 2966 | } |
---|
| 2967 | } |
---|
| 2968 | |
---|
| 2969 | |
---|
| 2970 | /**Function******************************************************************** |
---|
| 2971 | |
---|
| 2972 | Synopsis [Checks the splitting variable is valid and chooses new one |
---|
| 2973 | if not valid.] |
---|
| 2974 | |
---|
| 2975 | Description [Checks the splitting variable is already quantified from |
---|
| 2976 | the transition relation. If yes, chooses new splitting variable. If there |
---|
| 2977 | is no valid splitting variable, returns -1.] |
---|
| 2978 | |
---|
| 2979 | SideEffects [] |
---|
| 2980 | |
---|
| 2981 | ******************************************************************************/ |
---|
| 2982 | static int |
---|
| 2983 | CheckIfValidSplitOrGetNew(ImgTfmInfo_t *info, int split, array_t *vector, |
---|
| 2984 | array_t *relationArray, mdd_t *from) |
---|
| 2985 | { |
---|
| 2986 | int newSplit = split; |
---|
| 2987 | int i, j, nVars; |
---|
| 2988 | ImgComponent_t *comp; |
---|
| 2989 | char *support; |
---|
| 2990 | int *varOccur; |
---|
| 2991 | int decompose; |
---|
| 2992 | |
---|
| 2993 | nVars = info->nVars; |
---|
| 2994 | support = ALLOC(char, sizeof(char) * nVars); |
---|
| 2995 | memset(support, 0, sizeof(char) * nVars); |
---|
| 2996 | |
---|
| 2997 | comp = ImgComponentAlloc(info); |
---|
| 2998 | for (i = 0; i < array_n(relationArray); i++) { |
---|
| 2999 | comp->func = array_fetch(mdd_t *, relationArray, i);; |
---|
| 3000 | ImgSupportClear(info, comp->support); |
---|
| 3001 | ImgComponentGetSupport(comp); |
---|
| 3002 | for (j = 0; j < nVars; j++) { |
---|
| 3003 | if (comp->support[j]) { |
---|
| 3004 | if (j == split) { |
---|
| 3005 | comp->func = NIL(mdd_t); |
---|
| 3006 | ImgComponentFree(comp); |
---|
| 3007 | FREE(support); |
---|
| 3008 | return(split); |
---|
| 3009 | } |
---|
| 3010 | support[j] = 1; |
---|
| 3011 | } |
---|
| 3012 | } |
---|
| 3013 | } |
---|
| 3014 | |
---|
| 3015 | comp->func = NIL(mdd_t); |
---|
| 3016 | ImgComponentFree(comp); |
---|
| 3017 | |
---|
| 3018 | if (info->useConstraint && from) |
---|
| 3019 | decompose = 0; |
---|
| 3020 | else |
---|
| 3021 | decompose = 1; |
---|
| 3022 | |
---|
| 3023 | varOccur = ALLOC(int, nVars); |
---|
| 3024 | memset(varOccur, 0, sizeof(int) * nVars); |
---|
| 3025 | |
---|
| 3026 | if (from) { |
---|
| 3027 | comp = ImgComponentAlloc(info); |
---|
| 3028 | comp->func = from; |
---|
| 3029 | ImgComponentGetSupport(comp); |
---|
| 3030 | for (i = 0; i < nVars; i++) { |
---|
| 3031 | if (comp->support[i]) |
---|
| 3032 | varOccur[i]++; |
---|
| 3033 | } |
---|
| 3034 | comp->func = NIL(mdd_t); |
---|
| 3035 | ImgComponentFree(comp); |
---|
| 3036 | } |
---|
| 3037 | |
---|
| 3038 | FREE(support); |
---|
| 3039 | |
---|
| 3040 | newSplit = ChooseInputSplittingVariable(info, vector, from, |
---|
| 3041 | info->option->inputSplit, decompose, |
---|
| 3042 | info->option->piSplitFlag, varOccur); |
---|
| 3043 | |
---|
| 3044 | FREE(varOccur); |
---|
| 3045 | |
---|
| 3046 | return(newSplit); |
---|
| 3047 | } |
---|
| 3048 | |
---|
| 3049 | |
---|
| 3050 | /**Function******************************************************************** |
---|
| 3051 | |
---|
| 3052 | Synopsis [Finds a splitting variable for input splitting.] |
---|
| 3053 | |
---|
| 3054 | Description [Finds a splitting variable for input splitting.] |
---|
| 3055 | |
---|
| 3056 | SideEffects [] |
---|
| 3057 | |
---|
| 3058 | ******************************************************************************/ |
---|
| 3059 | static int |
---|
| 3060 | ChooseInputSplittingVariable(ImgTfmInfo_t *info, array_t *vector, mdd_t *from, |
---|
| 3061 | int splitMethod, int decompose, int piSplitFlag, int *varOccur) |
---|
| 3062 | { |
---|
| 3063 | int nVars = info->nVars; |
---|
| 3064 | int bestVar = -1; |
---|
| 3065 | int secondBestVar = -1; |
---|
| 3066 | int bestCost, newCost; |
---|
| 3067 | int bestOccur, tieCount; |
---|
| 3068 | int secondBestOccur, secondTieCount; |
---|
| 3069 | int i, j; |
---|
| 3070 | ImgComponent_t *comp; |
---|
| 3071 | mdd_t *var, *varNot, *pcFunc, *ncFunc; |
---|
| 3072 | int *varCost; |
---|
| 3073 | int size = ImgVectorFunctionSize(vector); |
---|
| 3074 | |
---|
| 3075 | if (info->option->inputSplit > 0) { |
---|
| 3076 | varCost = ALLOC(int, nVars); |
---|
| 3077 | memset(varCost, 0, sizeof(int) * nVars); |
---|
| 3078 | } else |
---|
| 3079 | varCost = NIL(int); |
---|
| 3080 | |
---|
| 3081 | switch (splitMethod) { |
---|
| 3082 | case 0: |
---|
| 3083 | /* Find the most frequently occurred variable */ |
---|
| 3084 | bestOccur = 0; |
---|
| 3085 | tieCount = 0; |
---|
| 3086 | secondBestOccur = 0; |
---|
| 3087 | secondTieCount = 0; |
---|
| 3088 | |
---|
| 3089 | for (i = 0; i < nVars; i++) { |
---|
| 3090 | if (varOccur[i] == 0) |
---|
| 3091 | continue; |
---|
| 3092 | if (piSplitFlag == 0) { |
---|
| 3093 | if (st_lookup(info->quantifyVarsTable, (char *)(long)i, |
---|
| 3094 | NIL(char *))) { |
---|
| 3095 | if ((bestOccur == 0 && secondBestOccur == 0) || |
---|
| 3096 | (varOccur[i] > bestOccur && varOccur[i] > secondBestOccur)) { |
---|
| 3097 | secondBestOccur = varOccur[i]; |
---|
| 3098 | secondBestVar = i; |
---|
| 3099 | secondTieCount = 1; |
---|
| 3100 | } else if (secondBestOccur > bestOccur && |
---|
| 3101 | varOccur[i] == secondBestOccur) { |
---|
| 3102 | secondTieCount++; |
---|
| 3103 | if (info->option->tieBreakMode == 0 && |
---|
| 3104 | bdd_get_level_from_id(info->manager, i) < |
---|
| 3105 | bdd_get_level_from_id(info->manager, secondBestVar)) { |
---|
| 3106 | secondBestVar = i; |
---|
| 3107 | } |
---|
| 3108 | } |
---|
| 3109 | continue; |
---|
| 3110 | } |
---|
| 3111 | } |
---|
| 3112 | if (size < array_n(vector) && |
---|
| 3113 | st_lookup(info->intermediateVarsTable, (char *)(long)i, |
---|
| 3114 | NIL(char *))) { |
---|
| 3115 | continue; |
---|
| 3116 | } |
---|
| 3117 | if (bestOccur == 0 || varOccur[i] > bestOccur) { |
---|
| 3118 | bestOccur = varOccur[i]; |
---|
| 3119 | bestVar = i; |
---|
| 3120 | tieCount = 1; |
---|
| 3121 | } else if (varOccur[i] == bestOccur) { |
---|
| 3122 | tieCount++; |
---|
| 3123 | if (info->option->tieBreakMode == 0 && |
---|
| 3124 | bdd_get_level_from_id(info->manager, i) < |
---|
| 3125 | bdd_get_level_from_id(info->manager, bestVar)) { |
---|
| 3126 | bestVar = i; |
---|
| 3127 | } |
---|
| 3128 | } |
---|
| 3129 | } |
---|
| 3130 | |
---|
| 3131 | if (piSplitFlag == 0 && bestVar == -1) { |
---|
| 3132 | bestVar = secondBestVar; |
---|
| 3133 | bestOccur = secondBestOccur; |
---|
| 3134 | tieCount = secondTieCount; |
---|
| 3135 | } |
---|
| 3136 | |
---|
| 3137 | if (info->option->tieBreakMode == 1 && tieCount > 1) { |
---|
| 3138 | bestCost = IMG_TF_MAX_INT; |
---|
| 3139 | for (i = bestVar; i < nVars; i++) { |
---|
| 3140 | if (varOccur[i] != bestOccur) |
---|
| 3141 | continue; |
---|
| 3142 | if (size < array_n(vector) && |
---|
| 3143 | st_lookup(info->intermediateVarsTable, (char *)(long)i, |
---|
| 3144 | NIL(char *))) { |
---|
| 3145 | continue; |
---|
| 3146 | } |
---|
| 3147 | var = bdd_var_with_index(info->manager, i); |
---|
| 3148 | newCost = 0; |
---|
| 3149 | for (j = 0; j < array_n(vector); j++) { |
---|
| 3150 | comp = array_fetch(ImgComponent_t *, vector, j); |
---|
| 3151 | newCost += bdd_estimate_cofactor(comp->func, var, 1); |
---|
| 3152 | newCost += bdd_estimate_cofactor(comp->func, var, 0); |
---|
| 3153 | } |
---|
| 3154 | if (decompose == 0) { |
---|
| 3155 | newCost += bdd_estimate_cofactor(from, var, 1); |
---|
| 3156 | newCost += bdd_estimate_cofactor(from, var, 0); |
---|
| 3157 | } |
---|
| 3158 | mdd_free(var); |
---|
| 3159 | |
---|
| 3160 | if (newCost < bestCost) { |
---|
| 3161 | bestVar = i; |
---|
| 3162 | bestCost = newCost; |
---|
| 3163 | } else if (newCost == bestCost) { |
---|
| 3164 | if (bdd_get_level_from_id(info->manager, i) < |
---|
| 3165 | bdd_get_level_from_id(info->manager, bestVar)) { |
---|
| 3166 | bestVar = i; |
---|
| 3167 | } |
---|
| 3168 | } |
---|
| 3169 | } |
---|
| 3170 | } |
---|
| 3171 | break; |
---|
| 3172 | case 1: |
---|
| 3173 | /* Find the variable which makes the smallest support after splitting */ |
---|
| 3174 | bestCost = IMG_TF_MAX_INT; |
---|
| 3175 | for (i = 0; i < nVars; i++) { |
---|
| 3176 | if (varOccur[i] == 0) |
---|
| 3177 | continue; |
---|
| 3178 | if (size < array_n(vector) && |
---|
| 3179 | st_lookup(info->intermediateVarsTable, (char *)(long)i, |
---|
| 3180 | NIL(char *))) { |
---|
| 3181 | continue; |
---|
| 3182 | } |
---|
| 3183 | var = bdd_var_with_index(info->manager, i); |
---|
| 3184 | varNot = mdd_not(var); |
---|
| 3185 | for (j = 0; j < array_n(vector); j++) { |
---|
| 3186 | comp = array_fetch(ImgComponent_t *, vector, j); |
---|
| 3187 | pcFunc = bdd_cofactor(comp->func, var); |
---|
| 3188 | varCost[i] += ImgCountBddSupports(pcFunc); |
---|
| 3189 | mdd_free(pcFunc); |
---|
| 3190 | ncFunc = bdd_cofactor(comp->func, varNot); |
---|
| 3191 | varCost[i] += ImgCountBddSupports(ncFunc); |
---|
| 3192 | mdd_free(ncFunc); |
---|
| 3193 | } |
---|
| 3194 | if (decompose == 0) { |
---|
| 3195 | pcFunc = bdd_cofactor(from, var); |
---|
| 3196 | varCost[i] += ImgCountBddSupports(pcFunc); |
---|
| 3197 | mdd_free(pcFunc); |
---|
| 3198 | ncFunc = bdd_cofactor(from, varNot); |
---|
| 3199 | varCost[i] += ImgCountBddSupports(ncFunc); |
---|
| 3200 | mdd_free(ncFunc); |
---|
| 3201 | } |
---|
| 3202 | mdd_free(var); |
---|
| 3203 | mdd_free(varNot); |
---|
| 3204 | |
---|
| 3205 | if (varCost[i] < bestCost) { |
---|
| 3206 | bestCost = varCost[i]; |
---|
| 3207 | bestVar = i; |
---|
| 3208 | } else if (varCost[i] == bestCost) { |
---|
| 3209 | if (varOccur[i] < varOccur[bestVar]) { |
---|
| 3210 | bestVar = i; |
---|
| 3211 | } else if (varOccur[i] == varOccur[bestVar]) { |
---|
| 3212 | if (bdd_get_level_from_id(info->manager, i) < |
---|
| 3213 | bdd_get_level_from_id(info->manager, bestVar)) { |
---|
| 3214 | bestVar = i; |
---|
| 3215 | } |
---|
| 3216 | } |
---|
| 3217 | } |
---|
| 3218 | } |
---|
| 3219 | break; |
---|
| 3220 | case 2: |
---|
| 3221 | /* Find the variable which makes the smallest BDDs of all functions |
---|
| 3222 | after splitting */ |
---|
| 3223 | bestCost = IMG_TF_MAX_INT; |
---|
| 3224 | for (i = 0; i < nVars; i++) { |
---|
| 3225 | if (varOccur[i] == 0) |
---|
| 3226 | continue; |
---|
| 3227 | if (size < array_n(vector) && |
---|
| 3228 | st_lookup(info->intermediateVarsTable, (char *)(long)i, |
---|
| 3229 | NIL(char *))) { |
---|
| 3230 | continue; |
---|
| 3231 | } |
---|
| 3232 | var = bdd_var_with_index(info->manager, i); |
---|
| 3233 | for (j = 0; j < array_n(vector); j++) { |
---|
| 3234 | comp = array_fetch(ImgComponent_t *, vector, j); |
---|
| 3235 | varCost[i] += bdd_estimate_cofactor(comp->func, var, 1); |
---|
| 3236 | varCost[i] += bdd_estimate_cofactor(comp->func, var, 0); |
---|
| 3237 | } |
---|
| 3238 | if (decompose == 0) { |
---|
| 3239 | varCost[i] += bdd_estimate_cofactor(from, var, 1); |
---|
| 3240 | varCost[i] += bdd_estimate_cofactor(from, var, 0); |
---|
| 3241 | } |
---|
| 3242 | mdd_free(var); |
---|
| 3243 | |
---|
| 3244 | if (varCost[i] < bestCost) { |
---|
| 3245 | bestCost = varCost[i]; |
---|
| 3246 | bestVar = i; |
---|
| 3247 | } else if (varCost[i] == bestCost) { |
---|
| 3248 | if (varOccur[i] < varOccur[bestVar]) { |
---|
| 3249 | bestVar = i; |
---|
| 3250 | } else if (varOccur[i] == varOccur[bestVar]) { |
---|
| 3251 | if (bdd_get_level_from_id(info->manager, i) < |
---|
| 3252 | bdd_get_level_from_id(info->manager, bestVar)) { |
---|
| 3253 | bestVar = i; |
---|
| 3254 | } |
---|
| 3255 | } |
---|
| 3256 | } |
---|
| 3257 | } |
---|
| 3258 | break; |
---|
| 3259 | case 3: /* top variable */ |
---|
| 3260 | for (i = 0; i < nVars; i++) { |
---|
| 3261 | if (varOccur[i] == 0) |
---|
| 3262 | continue; |
---|
| 3263 | if (size < array_n(vector) && |
---|
| 3264 | st_lookup(info->intermediateVarsTable, (char *)(long)i, |
---|
| 3265 | NIL(char *))) { |
---|
| 3266 | continue; |
---|
| 3267 | } |
---|
| 3268 | if (piSplitFlag == 0) { |
---|
| 3269 | if (st_lookup(info->quantifyVarsTable, (char *)(long)i, |
---|
| 3270 | NIL(char *))) { |
---|
| 3271 | if (bestVar == -1 && secondBestVar == -1) |
---|
| 3272 | secondBestVar = i; |
---|
| 3273 | else if (bdd_get_level_from_id(info->manager, i) < |
---|
| 3274 | bdd_get_level_from_id(info->manager, secondBestVar)) { |
---|
| 3275 | secondBestVar = i; |
---|
| 3276 | } |
---|
| 3277 | continue; |
---|
| 3278 | } |
---|
| 3279 | } |
---|
| 3280 | if (bestVar == -1 || |
---|
| 3281 | bdd_get_level_from_id(info->manager, i) < |
---|
| 3282 | bdd_get_level_from_id(info->manager, bestVar)) { |
---|
| 3283 | bestVar = i; |
---|
| 3284 | } |
---|
| 3285 | } |
---|
| 3286 | |
---|
| 3287 | if (piSplitFlag == 0 && bestVar == -1) |
---|
| 3288 | bestVar = secondBestVar; |
---|
| 3289 | break; |
---|
| 3290 | default: |
---|
| 3291 | break; |
---|
| 3292 | } |
---|
| 3293 | |
---|
| 3294 | if (varCost) |
---|
| 3295 | FREE(varCost); |
---|
| 3296 | |
---|
| 3297 | return(bestVar); |
---|
| 3298 | } |
---|
| 3299 | |
---|
| 3300 | |
---|
| 3301 | /**Function******************************************************************** |
---|
| 3302 | |
---|
| 3303 | Synopsis [Finds a splitting variable for output splitting.] |
---|
| 3304 | |
---|
| 3305 | Description [Finds a splitting variable for output splitting.] |
---|
| 3306 | |
---|
| 3307 | SideEffects [] |
---|
| 3308 | |
---|
| 3309 | ******************************************************************************/ |
---|
| 3310 | static int |
---|
| 3311 | ChooseOutputSplittingVariable(ImgTfmInfo_t *info, array_t *vector, |
---|
| 3312 | int splitMethod) |
---|
| 3313 | { |
---|
| 3314 | int bestVar = -1; |
---|
| 3315 | int bestCost, newCost; |
---|
| 3316 | int i; |
---|
| 3317 | ImgComponent_t *comp; |
---|
| 3318 | int size = ImgVectorFunctionSize(vector); |
---|
| 3319 | int index; |
---|
| 3320 | |
---|
| 3321 | switch (splitMethod) { |
---|
| 3322 | case 0: /* smallest */ |
---|
| 3323 | bestCost = IMG_TF_MAX_INT; |
---|
| 3324 | for (i = 0; i < array_n(vector); i++) { |
---|
| 3325 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
| 3326 | if (size < array_n(vector) && |
---|
| 3327 | st_lookup(info->intermediateVarsTable, |
---|
| 3328 | (char *)(long)bdd_top_var_id(comp->var), NIL(char *))) { |
---|
| 3329 | continue; |
---|
| 3330 | } |
---|
| 3331 | newCost = bdd_size(comp->func); |
---|
| 3332 | if (newCost < bestCost) { |
---|
| 3333 | bestVar = i; |
---|
| 3334 | bestCost = newCost; |
---|
| 3335 | } |
---|
| 3336 | } |
---|
| 3337 | break; |
---|
| 3338 | case 1: /* largest */ |
---|
| 3339 | bestCost = 0; |
---|
| 3340 | for (i = 0; i < array_n(vector); i++) { |
---|
| 3341 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
| 3342 | if (size < array_n(vector) && |
---|
| 3343 | st_lookup(info->intermediateVarsTable, |
---|
| 3344 | (char *)(long)bdd_top_var_id(comp->var), NIL(char *))) { |
---|
| 3345 | continue; |
---|
| 3346 | } |
---|
| 3347 | newCost = bdd_size(comp->func); |
---|
| 3348 | if (newCost > bestCost) { |
---|
| 3349 | bestVar = i; |
---|
| 3350 | bestCost = newCost; |
---|
| 3351 | } |
---|
| 3352 | } |
---|
| 3353 | break; |
---|
| 3354 | case 2: /* top variable */ |
---|
| 3355 | default: |
---|
| 3356 | comp = array_fetch(ImgComponent_t *, vector, 0); |
---|
| 3357 | bestVar = (int)bdd_top_var_id(comp->var); |
---|
| 3358 | for (i = 0; i < array_n(vector); i++) { |
---|
| 3359 | comp = array_fetch(ImgComponent_t *, vector, i); |
---|
| 3360 | index = (int)bdd_top_var_id(comp->var); |
---|
| 3361 | if (size < array_n(vector) && |
---|
| 3362 | st_lookup(info->intermediateVarsTable, (char *)(long)index, |
---|
| 3363 | NIL(char *))) { |
---|
| 3364 | continue; |
---|
| 3365 | } |
---|
| 3366 | if (bestVar == -1 || |
---|
| 3367 | bdd_get_level_from_id(info->manager, index) < |
---|
| 3368 | bdd_get_level_from_id(info->manager, bestVar)) { |
---|
| 3369 | bestVar = i; |
---|
| 3370 | } |
---|
| 3371 | } |
---|
| 3372 | break; |
---|
| 3373 | } |
---|
| 3374 | |
---|
| 3375 | return(bestVar); |
---|
| 3376 | } |
---|