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/**CFile****************************************************************
FileName [cswCore.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: cswCore.c,v 1.00 2007/07/11 00:00:00 alanmi Exp $]
***********************************************************************/
#include "cswInt.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Dar_Man_t * Csw_Sweep( Dar_Man_t * pAig, int nCutsMax, int nLeafMax, int fVerbose )
{
Csw_Man_t * p;
Dar_Man_t * pRes;
Dar_Obj_t * pObj, * pObjNew, * pObjRes;
int i;
// start the manager
p = Csw_ManStart( pAig, nCutsMax, nLeafMax, fVerbose );
// set elementary cuts at the PIs
Dar_ManForEachPi( p->pManRes, pObj, i )
Csw_ObjPrepareCuts( p, pObj, 1 );
// process the nodes
Dar_ManForEachNode( pAig, pObj, i )
{
// create the new node
pObjNew = Dar_And( p->pManRes, Csw_ObjChild0Equiv(p, pObj), Csw_ObjChild1Equiv(p, pObj) );
// check if this node can be represented using another node
pObjRes = Csw_ObjSweep( p, Dar_Regular(pObjNew), pObj->nRefs > 1 );
pObjRes = Dar_NotCond( pObjRes, Dar_IsComplement(pObjNew) );
// set the resulting node
Csw_ObjSetEquiv( p, pObj, pObjRes );
}
// add the POs
Dar_ManForEachPo( pAig, pObj, i )
Dar_ObjCreatePo( p->pManRes, Csw_ObjChild0Equiv(p, pObj) );
// remove dangling nodes
Dar_ManCleanup( p->pManRes );
// return the resulting manager
pRes = p->pManRes;
Csw_ManStop( p );
return pRes;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
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