/**Function*************************************************************
Synopsis [Create mapping for the first nFrames timeframes of pAig.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Saig_ManCreateMapping( Aig_Man_t * pAig, Aig_Man_t * pFrames, int nFrames )
{
Aig_Obj_t * pObj, * pObjFrame, * pObjRepr;
int i, f, iNum, iFrame;
assert( pFrames->pReprs != NULL ); // mapping from nodes into their representatives
// start step mapping for both orignal manager and fraig
Saig_ManStartMap2( pAig, nFrames );
Saig_ManStartMap2( pFrames, 1 );
// for each object in each frame
for ( f = 0; f < nFrames; f++ )
Aig_ManForEachObj( pAig, pObj, i )
{
// get the frame object
iNum = Saig_ManGetMap1( pAig, pObj, f );
pObjFrame = Aig_ManObj( pFrames, iNum );
// if the node has no prototype, map it into itself
if ( pObjFrame == NULL )
{
Saig_ManSetMap2( pAig, pObj, f, pObj, f );
continue;
}
// get the representative object
pObjRepr = Aig_ObjRepr( pFrames, pObjFrame );
if ( pObjRepr == NULL )
pObjRepr = pObjFrame;
// check if this is the first time this object is reached
if ( Saig_ManGetMap2( pFrames, pObjRepr, 0, &iFrame ) == -1 )
Saig_ManSetMap2( pFrames, pObjRepr, 0, pObj, f );
// set the map for the main object
iNum = Saig_ManGetMap2( pFrames, pObjRepr, 0, &iFrame );
Saig_ManSetMap2( pAig, pObj, f, Aig_ManObj(pAig, iNum), iFrame );
}
/**Function*************************************************************
Synopsis [Checks candidate equivalence classes.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Dch_ClassesCheck( Dch_Cla_t * p )
{
Aig_Obj_t * pObj, * pPrev, ** ppClass;
int i, k, nLits, nClasses, nCands1;
nClasses = nLits = 0;
Dch_ManForEachClass( p, ppClass, k )
{
pPrev = NULL;
Dch_ClassForEachNode( p, ppClass[0], pObj, i )
{
if ( i == 0 )
assert( Aig_ObjRepr(p->pAig, pObj) == NULL );
else
{
assert( Aig_ObjRepr(p->pAig, pObj) == ppClass[0] );
assert( pPrev->Id < pObj->Id );
nLits++;
}
pPrev = pObj;
}
nClasses++;
}
/**Function*************************************************************
Synopsis [Create mapping of node IDs of pNtk into equiv classes of pMiter.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Vec_Int_t * Abc_NtkDressMapClasses( Aig_Man_t * pMiter, Abc_Ntk_t * pNtk )
{
Vec_Int_t * vId2Lit;
Abc_Obj_t * pObj, * pAnd;
Aig_Obj_t * pObjMan, * pObjMiter, * pObjRepr;
int i;
vId2Lit = Vec_IntAlloc( 0 );
Vec_IntFill( vId2Lit, Abc_NtkObjNumMax(pNtk), -1 );
Abc_NtkForEachNode( pNtk, pObj, i )
{
// get the pointer to the miter node corresponding to pObj
if ( (pAnd = Abc_ObjRegular(pObj->pCopy)) && Abc_ObjType(pAnd) != ABC_OBJ_NONE && // strashed node is present and legal
(pObjMan = Aig_Regular((Aig_Obj_t *)pAnd->pCopy)) && Aig_ObjType(pObjMan) != AIG_OBJ_NONE && // AIG node is present and legal
(pObjMiter = Aig_Regular((Aig_Obj_t *)pObjMan->pData)) && Aig_ObjType(pObjMiter) != AIG_OBJ_NONE ) // miter node is present and legal
{
// get the representative of the miter node
pObjRepr = Aig_ObjRepr( pMiter, pObjMiter );
pObjRepr = pObjRepr? pObjRepr : pObjMiter;
// map pObj (whose ID is i) into the repr node ID (i.e. equiv class)
Vec_IntWriteEntry( vId2Lit, i, Aig_ObjId(pObjRepr) );
}
}
return vId2Lit;
}