mirror of https://github.com/YosysHQ/abc.git
150 lines
4.3 KiB
C
150 lines
4.3 KiB
C
/**CFile****************************************************************
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FileName [covMan.c]
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SystemName [ABC: Logic synthesis and verification system.]
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PackageName [Mapping into network of SOPs/ESOPs.]
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Synopsis [Decomposition manager.]
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Author [Alan Mishchenko]
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Affiliation [UC Berkeley]
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Date [Ver. 1.0. Started - June 20, 2005.]
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Revision [$Id: covMan.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
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***********************************************************************/
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#include "cov.h"
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ABC_NAMESPACE_IMPL_START
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////////////////////////////////////////////////////////////////////////
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/// DECLARATIONS ///
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////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////
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/// FUNCTION DEFINITIONS ///
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////////////////////////////////////////////////////////////////////////
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/**Function*************************************************************
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Synopsis []
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Description []
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SideEffects []
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SeeAlso []
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***********************************************************************/
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Cov_Man_t * Cov_ManAlloc( Abc_Ntk_t * pNtk, int nFaninMax )
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{
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Cov_Man_t * pMan;
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Cov_Obj_t * pMem;
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Abc_Obj_t * pObj;
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int i;
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assert( pNtk->pManCut == NULL );
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// start the manager
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pMan = ABC_ALLOC( Cov_Man_t, 1 );
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memset( pMan, 0, sizeof(Cov_Man_t) );
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pMan->nFaninMax = nFaninMax;
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pMan->nCubesMax = 2 * pMan->nFaninMax;
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pMan->nWords = Abc_BitWordNum( nFaninMax * 2 );
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// get the cubes
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pMan->vComTo0 = Vec_IntAlloc( 2*nFaninMax );
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pMan->vComTo1 = Vec_IntAlloc( 2*nFaninMax );
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pMan->vPairs0 = Vec_IntAlloc( nFaninMax );
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pMan->vPairs1 = Vec_IntAlloc( nFaninMax );
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pMan->vTriv0 = Vec_IntAlloc( 1 ); Vec_IntPush( pMan->vTriv0, -1 );
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pMan->vTriv1 = Vec_IntAlloc( 1 ); Vec_IntPush( pMan->vTriv1, -1 );
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// allocate memory for object structures
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pMan->pMemory = pMem = ABC_ALLOC( Cov_Obj_t, sizeof(Cov_Obj_t) * Abc_NtkObjNumMax(pNtk) );
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memset( pMem, 0, sizeof(Cov_Obj_t) * Abc_NtkObjNumMax(pNtk) );
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// allocate storage for the pointers to the memory
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pMan->vObjStrs = Vec_PtrAlloc( Abc_NtkObjNumMax(pNtk) );
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Vec_PtrFill( pMan->vObjStrs, Abc_NtkObjNumMax(pNtk), NULL );
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Abc_NtkForEachObj( pNtk, pObj, i )
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Vec_PtrWriteEntry( pMan->vObjStrs, i, pMem + i );
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// create the cube manager
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pMan->pManMin = Min_ManAlloc( nFaninMax );
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return pMan;
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}
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/**Function*************************************************************
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Synopsis []
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Description []
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SideEffects []
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SeeAlso []
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***********************************************************************/
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void Cov_ManFree( Cov_Man_t * p )
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{
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Vec_Int_t * vSupp;
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int i;
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for ( i = 0; i < p->vObjStrs->nSize; i++ )
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{
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vSupp = ((Cov_Obj_t *)p->vObjStrs->pArray[i])->vSupp;
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if ( vSupp ) Vec_IntFree( vSupp );
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}
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Min_ManFree( p->pManMin );
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Vec_PtrFree( p->vObjStrs );
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Vec_IntFree( p->vFanCounts );
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Vec_IntFree( p->vTriv0 );
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Vec_IntFree( p->vTriv1 );
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Vec_IntFree( p->vComTo0 );
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Vec_IntFree( p->vComTo1 );
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Vec_IntFree( p->vPairs0 );
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Vec_IntFree( p->vPairs1 );
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ABC_FREE( p->pMemory );
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ABC_FREE( p );
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}
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/**Function*************************************************************
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Synopsis [Drop the covers at the node.]
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Description []
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SideEffects []
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SeeAlso []
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***********************************************************************/
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void Abc_NodeCovDropData( Cov_Man_t * p, Abc_Obj_t * pObj )
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{
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int nFanouts;
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assert( p->vFanCounts );
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nFanouts = Vec_IntEntry( p->vFanCounts, pObj->Id );
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assert( nFanouts > 0 );
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if ( --nFanouts == 0 )
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{
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Vec_IntFree( Abc_ObjGetSupp(pObj) );
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Abc_ObjSetSupp( pObj, NULL );
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Min_CoverRecycle( p->pManMin, Abc_ObjGetCover2(pObj) );
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Abc_ObjSetCover2( pObj, NULL );
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p->nSupps--;
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}
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Vec_IntWriteEntry( p->vFanCounts, pObj->Id, nFanouts );
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}
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////////////////////////////////////////////////////////////////////////
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/// END OF FILE ///
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////////////////////////////////////////////////////////////////////////
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ABC_NAMESPACE_IMPL_END
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