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Diffstat (limited to 'src/aig/csw/cswTable.c')
-rw-r--r-- | src/aig/csw/cswTable.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/src/aig/csw/cswTable.c b/src/aig/csw/cswTable.c deleted file mode 100644 index 9bab0a01..00000000 --- a/src/aig/csw/cswTable.c +++ /dev/null @@ -1,166 +0,0 @@ -/**CFile**************************************************************** - - FileName [cswTable.c] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [Cut sweeping.] - - Synopsis [] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - July 11, 2007.] - - Revision [$Id: cswTable.c,v 1.00 2007/07/11 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "cswInt.h" - -ABC_NAMESPACE_IMPL_START - - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [Computes hash value of the cut.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -unsigned Csw_CutHash( Csw_Cut_t * pCut ) -{ - static int s_FPrimes[128] = { - 1009, 1049, 1093, 1151, 1201, 1249, 1297, 1361, 1427, 1459, - 1499, 1559, 1607, 1657, 1709, 1759, 1823, 1877, 1933, 1997, - 2039, 2089, 2141, 2213, 2269, 2311, 2371, 2411, 2467, 2543, - 2609, 2663, 2699, 2741, 2797, 2851, 2909, 2969, 3037, 3089, - 3169, 3221, 3299, 3331, 3389, 3461, 3517, 3557, 3613, 3671, - 3719, 3779, 3847, 3907, 3943, 4013, 4073, 4129, 4201, 4243, - 4289, 4363, 4441, 4493, 4549, 4621, 4663, 4729, 4793, 4871, - 4933, 4973, 5021, 5087, 5153, 5227, 5281, 5351, 5417, 5471, - 5519, 5573, 5651, 5693, 5749, 5821, 5861, 5923, 6011, 6073, - 6131, 6199, 6257, 6301, 6353, 6397, 6481, 6563, 6619, 6689, - 6737, 6803, 6863, 6917, 6977, 7027, 7109, 7187, 7237, 7309, - 7393, 7477, 7523, 7561, 7607, 7681, 7727, 7817, 7877, 7933, - 8011, 8039, 8059, 8081, 8093, 8111, 8123, 8147 - }; - unsigned uHash; - int i; - assert( pCut->nFanins <= 16 ); - uHash = 0; - for ( i = 0; i < pCut->nFanins; i++ ) - uHash ^= pCut->pFanins[i] * s_FPrimes[i]; - return uHash; -} - -/**Function************************************************************* - - Synopsis [Returns the total number of cuts in the table.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Csw_TableCountCuts( Csw_Man_t * p ) -{ - Csw_Cut_t * pEnt; - int i, Counter = 0; - for ( i = 0; i < p->nTableSize; i++ ) - for ( pEnt = p->pTable[i]; pEnt; pEnt = pEnt->pNext ) - Counter++; - return Counter; -} - -/**Function************************************************************* - - Synopsis [Adds the cut to the hash table.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Csw_TableCutInsert( Csw_Man_t * p, Csw_Cut_t * pCut ) -{ - int iEntry = Csw_CutHash(pCut) % p->nTableSize; - pCut->pNext = p->pTable[iEntry]; - p->pTable[iEntry] = pCut; -} - -/**Function************************************************************* - - Synopsis [Returns an equivalent node if it exists.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Aig_Obj_t * Csw_TableCutLookup( Csw_Man_t * p, Csw_Cut_t * pCut ) -{ - Aig_Obj_t * pRes = NULL; - Csw_Cut_t * pEnt; - unsigned * pTruthNew, * pTruthOld; - int iEntry = Csw_CutHash(pCut) % p->nTableSize; - for ( pEnt = p->pTable[iEntry]; pEnt; pEnt = pEnt->pNext ) - { - if ( pEnt->nFanins != pCut->nFanins ) - continue; - if ( pEnt->uSign != pCut->uSign ) - continue; - if ( memcmp( pEnt->pFanins, pCut->pFanins, sizeof(int) * pCut->nFanins ) ) - continue; - pTruthOld = Csw_CutTruth(pEnt); - pTruthNew = Csw_CutTruth(pCut); - if ( (pTruthOld[0] & 1) == (pTruthNew[0] & 1) ) - { - if ( Kit_TruthIsEqual( pTruthOld, pTruthNew, pCut->nFanins ) ) - { - pRes = Aig_ManObj( p->pManRes, pEnt->iNode ); - assert( pRes->fPhase == Aig_ManObj( p->pManRes, pCut->iNode )->fPhase ); - break; - } - } - else - { - if ( Kit_TruthIsOpposite( pTruthOld, pTruthNew, pCut->nFanins ) ) - { - pRes = Aig_Not( Aig_ManObj( p->pManRes, pEnt->iNode ) ); - assert( Aig_Regular(pRes)->fPhase != Aig_ManObj( p->pManRes, pCut->iNode )->fPhase ); - break; - } - } - } - return pRes; -} - - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - -ABC_NAMESPACE_IMPL_END - |