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-rw-r--r--src/aig/nwk2/nwkFanio.c309
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diff --git a/src/aig/nwk2/nwkFanio.c b/src/aig/nwk2/nwkFanio.c
deleted file mode 100644
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--- a/src/aig/nwk2/nwkFanio.c
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@@ -1,309 +0,0 @@
-/**CFile****************************************************************
-
- FileName [nwkFanio.c]
-
- SystemName [ABC: Logic synthesis and verification system.]
-
- PackageName [Logic network representation.]
-
- Synopsis [Manipulation of fanins/fanouts.]
-
- Author [Alan Mishchenko]
-
- Affiliation [UC Berkeley]
-
- Date [Ver. 1.0. Started - June 20, 2005.]
-
- Revision [$Id: nwkFanio.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
-
-***********************************************************************/
-
-#include "nwk.h"
-
-////////////////////////////////////////////////////////////////////////
-/// DECLARATIONS ///
-////////////////////////////////////////////////////////////////////////
-
-////////////////////////////////////////////////////////////////////////
-/// FUNCTION DEFINITIONS ///
-////////////////////////////////////////////////////////////////////////
-
-/**Function*************************************************************
-
- Synopsis [Collects fanins of the node.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Nwk_ObjCollectFanins( Nwk_Obj_t * pNode, Vec_Ptr_t * vNodes )
-{
- Nwk_Obj_t * pFanin;
- int i;
- Vec_PtrClear(vNodes);
- Nwk_ObjForEachFanin( pNode, pFanin, i )
- Vec_PtrPush( vNodes, pFanin );
-}
-
-/**Function*************************************************************
-
- Synopsis [Collects fanouts of the node.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Nwk_ObjCollectFanouts( Nwk_Obj_t * pNode, Vec_Ptr_t * vNodes )
-{
- Nwk_Obj_t * pFanout;
- int i;
- Vec_PtrClear(vNodes);
- Nwk_ObjForEachFanout( pNode, pFanout, i )
- Vec_PtrPush( vNodes, pFanout );
-}
-
-/**Function*************************************************************
-
- Synopsis [Returns the number of the fanin of the node.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-int Nwk_ObjFindFanin( Nwk_Obj_t * pObj, Nwk_Obj_t * pFanin )
-{
- Nwk_Obj_t * pTemp;
- int i;
- Nwk_ObjForEachFanin( pObj, pTemp, i )
- if ( pTemp == pFanin )
- return i;
- return -1;
-}
-
-/**Function*************************************************************
-
- Synopsis [Returns the number of the fanout of the node.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-int Nwk_ObjFindFanout( Nwk_Obj_t * pObj, Nwk_Obj_t * pFanout )
-{
- Nwk_Obj_t * pTemp;
- int i;
- Nwk_ObjForEachFanout( pObj, pTemp, i )
- if ( pTemp == pFanout )
- return i;
- return -1;
-}
-
-/**Function*************************************************************
-
- Synopsis [Returns 1 if the node has to be reallocated.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-static inline int Nwk_ObjReallocIsNeeded( Nwk_Obj_t * pObj )
-{
- return pObj->nFanins + pObj->nFanouts == pObj->nFanioAlloc;
-}
-
-/**Function*************************************************************
-
- Synopsis [Reallocates the object.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-static Nwk_Obj_t * Nwk_ManReallocNode( Nwk_Obj_t * pObj )
-{
- Nwk_Obj_t ** pFanioOld = pObj->pFanio;
- assert( Nwk_ObjReallocIsNeeded(pObj) );
- pObj->pFanio = (Nwk_Obj_t **)Aig_MmFlexEntryFetch( pObj->pMan->pMemObjs, 2 * pObj->nFanioAlloc * sizeof(Nwk_Obj_t *) );
- memmove( pObj->pFanio, pFanioOld, pObj->nFanioAlloc * sizeof(Nwk_Obj_t *) );
- pObj->nFanioAlloc *= 2;
- pObj->pMan->nRealloced++;
- return NULL;
-}
-
-/**Function*************************************************************
-
- Synopsis [Creates fanout/fanin relationship between the nodes.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Nwk_ObjAddFanin( Nwk_Obj_t * pObj, Nwk_Obj_t * pFanin )
-{
- int i;
- assert( pObj->pMan == pFanin->pMan );
- assert( pObj->Id >= 0 && pFanin->Id >= 0 );
- if ( Nwk_ObjReallocIsNeeded(pObj) )
- Nwk_ManReallocNode( pObj );
- if ( Nwk_ObjReallocIsNeeded(pFanin) )
- Nwk_ManReallocNode( pFanin );
- for ( i = pObj->nFanins + pObj->nFanouts; i > pObj->nFanins; i-- )
- pObj->pFanio[i] = pObj->pFanio[i-1];
- pObj->pFanio[pObj->nFanins++] = pFanin;
- pFanin->pFanio[pFanin->nFanins + pFanin->nFanouts++] = pObj;
- pObj->Level = ABC_MAX( pObj->Level, pFanin->Level + Nwk_ObjIsNode(pObj) );
-}
-
-/**Function*************************************************************
-
- Synopsis [Removes fanout/fanin relationship between the nodes.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Nwk_ObjDeleteFanin( Nwk_Obj_t * pObj, Nwk_Obj_t * pFanin )
-{
- int i, k, Limit;
- // remove pFanin from the fanin list of pObj
- Limit = pObj->nFanins + pObj->nFanouts;
- for ( k = i = 0; i < Limit; i++ )
- if ( pObj->pFanio[i] != pFanin )
- pObj->pFanio[k++] = pObj->pFanio[i];
- assert( i == k + 1 ); // if it fails, likely because of duplicated fanin
- pObj->nFanins--;
- // remove pObj from the fanout list of pFanin
- Limit = pFanin->nFanins + pFanin->nFanouts;
- for ( k = i = pFanin->nFanins; i < Limit; i++ )
- if ( pFanin->pFanio[i] != pObj )
- pFanin->pFanio[k++] = pFanin->pFanio[i];
- assert( i == k + 1 ); // if it fails, likely because of duplicated fanout
- pFanin->nFanouts--;
-}
-
-/**Function*************************************************************
-
- Synopsis [Replaces a fanin of the node.]
-
- Description [The node is pObj. An old fanin of this node (pFaninOld) has to be
- replaced by a new fanin (pFaninNew). Assumes that the node and the old fanin
- are not complemented. The new fanin can be complemented. In this case, the
- polarity of the new fanin will change, compared to the polarity of the old fanin.]
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Nwk_ObjPatchFanin( Nwk_Obj_t * pObj, Nwk_Obj_t * pFaninOld, Nwk_Obj_t * pFaninNew )
-{
- int i, k, iFanin, Limit;
- assert( pFaninOld != pFaninNew );
- assert( pObj != pFaninOld );
- assert( pObj != pFaninNew );
- assert( pObj->pMan == pFaninOld->pMan );
- assert( pObj->pMan == pFaninNew->pMan );
- // update the fanin
- iFanin = Nwk_ObjFindFanin( pObj, pFaninOld );
- if ( iFanin == -1 )
- {
- printf( "Nwk_ObjPatchFanin(); Error! Node %d is not among", pFaninOld->Id );
- printf( " the fanins of node %d...\n", pObj->Id );
- return;
- }
- pObj->pFanio[iFanin] = pFaninNew;
- // remove pObj from the fanout list of pFaninOld
- Limit = pFaninOld->nFanins + pFaninOld->nFanouts;
- for ( k = i = pFaninOld->nFanins; i < Limit; i++ )
- if ( pFaninOld->pFanio[i] != pObj )
- pFaninOld->pFanio[k++] = pFaninOld->pFanio[i];
- pFaninOld->nFanouts--;
- // add pObj to the fanout list of pFaninNew
- if ( Nwk_ObjReallocIsNeeded(pFaninNew) )
- Nwk_ManReallocNode( pFaninNew );
- pFaninNew->pFanio[pFaninNew->nFanins + pFaninNew->nFanouts++] = pObj;
-}
-
-
-/**Function*************************************************************
-
- Synopsis [Transfers fanout from the old node to the new node.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Nwk_ObjTransferFanout( Nwk_Obj_t * pNodeFrom, Nwk_Obj_t * pNodeTo )
-{
- Vec_Ptr_t * vFanouts = pNodeFrom->pMan->vTemp;
- Nwk_Obj_t * pTemp;
- int nFanoutsOld, i;
- assert( !Nwk_ObjIsCo(pNodeFrom) && !Nwk_ObjIsCo(pNodeTo) );
- assert( pNodeFrom->pMan == pNodeTo->pMan );
- assert( pNodeFrom != pNodeTo );
- assert( Nwk_ObjFanoutNum(pNodeFrom) > 0 );
- // get the fanouts of the old node
- nFanoutsOld = Nwk_ObjFanoutNum(pNodeTo);
- Nwk_ObjCollectFanouts( pNodeFrom, vFanouts );
- // patch the fanin of each of them
- Vec_PtrForEachEntry( vFanouts, pTemp, i )
- Nwk_ObjPatchFanin( pTemp, pNodeFrom, pNodeTo );
- assert( Nwk_ObjFanoutNum(pNodeFrom) == 0 );
- assert( Nwk_ObjFanoutNum(pNodeTo) == nFanoutsOld + Vec_PtrSize(vFanouts) );
-}
-
-/**Function*************************************************************
-
- Synopsis [Replaces the node by a new node.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Nwk_ObjReplace( Nwk_Obj_t * pNodeOld, Nwk_Obj_t * pNodeNew )
-{
- assert( pNodeOld->pMan == pNodeNew->pMan );
- assert( pNodeOld != pNodeNew );
- assert( Nwk_ObjFanoutNum(pNodeOld) > 0 );
- // transfer the fanouts to the old node
- Nwk_ObjTransferFanout( pNodeOld, pNodeNew );
- // remove the old node
- Nwk_ManDeleteNode_rec( pNodeOld );
-}
-
-
-////////////////////////////////////////////////////////////////////////
-/// END OF FILE ///
-////////////////////////////////////////////////////////////////////////
-
-
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