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Diffstat (limited to 'src/aig/cnf/cnfUtil.c')
| -rw-r--r-- | src/aig/cnf/cnfUtil.c | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/src/aig/cnf/cnfUtil.c b/src/aig/cnf/cnfUtil.c deleted file mode 100644 index cd47cb58..00000000 --- a/src/aig/cnf/cnfUtil.c +++ /dev/null @@ -1,188 +0,0 @@ -/**CFile**************************************************************** - - FileName [cnfUtil.c] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [AIG-to-CNF conversion.] - - Synopsis [] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - April 28, 2007.] - - Revision [$Id: cnfUtil.c,v 1.00 2007/04/28 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "cnf.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [Computes area, references, and nodes used in the mapping.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Aig_ManScanMapping_rec( Cnf_Man_t * p, Aig_Obj_t * pObj, Vec_Ptr_t * vMapped ) -{ - Aig_Obj_t * pLeaf; - Dar_Cut_t * pCutBest; - int aArea, i; - if ( pObj->nRefs++ || Aig_ObjIsPi(pObj) || Aig_ObjIsConst1(pObj) ) - return 0; - assert( Aig_ObjIsAnd(pObj) ); - // collect the node first to derive pre-order - if ( vMapped ) - Vec_PtrPush( vMapped, pObj ); - // visit the transitive fanin of the selected cut - if ( pObj->fMarkB ) - { - Vec_Ptr_t * vSuper = Vec_PtrAlloc( 100 ); - Aig_ObjCollectSuper( pObj, vSuper ); - aArea = Vec_PtrSize(vSuper) + 1; - Vec_PtrForEachEntry( vSuper, pLeaf, i ) - aArea += Aig_ManScanMapping_rec( p, Aig_Regular(pLeaf), vMapped ); - Vec_PtrFree( vSuper ); - //////////////////////////// - pObj->fMarkB = 1; - } - else - { - pCutBest = Dar_ObjBestCut( pObj ); - aArea = Cnf_CutSopCost( p, pCutBest ); - Dar_CutForEachLeaf( p->pManAig, pCutBest, pLeaf, i ) - aArea += Aig_ManScanMapping_rec( p, pLeaf, vMapped ); - } - return aArea; -} - -/**Function************************************************************* - - Synopsis [Computes area, references, and nodes used in the mapping.] - - Description [Collects the nodes in reverse topological order.] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Vec_Ptr_t * Aig_ManScanMapping( Cnf_Man_t * p, int fCollect ) -{ - Vec_Ptr_t * vMapped = NULL; - Aig_Obj_t * pObj; - int i; - // clean all references - Aig_ManForEachObj( p->pManAig, pObj, i ) - pObj->nRefs = 0; - // allocate the array - if ( fCollect ) - vMapped = Vec_PtrAlloc( 1000 ); - // collect nodes reachable from POs in the DFS order through the best cuts - p->aArea = 0; - Aig_ManForEachPo( p->pManAig, pObj, i ) - p->aArea += Aig_ManScanMapping_rec( p, Aig_ObjFanin0(pObj), vMapped ); -// printf( "Variables = %6d. Clauses = %8d.\n", vMapped? Vec_PtrSize(vMapped) + Aig_ManPiNum(p->pManAig) + 1 : 0, p->aArea + 2 ); - return vMapped; -} - -/**Function************************************************************* - - Synopsis [Computes area, references, and nodes used in the mapping.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Cnf_ManScanMapping_rec( Cnf_Man_t * p, Aig_Obj_t * pObj, Vec_Ptr_t * vMapped, int fPreorder ) -{ - Aig_Obj_t * pLeaf; - Cnf_Cut_t * pCutBest; - int aArea, i; - if ( pObj->nRefs++ || Aig_ObjIsPi(pObj) || Aig_ObjIsConst1(pObj) ) - return 0; - assert( Aig_ObjIsAnd(pObj) ); - assert( pObj->pData != NULL ); - // add the node to the mapping - if ( vMapped && fPreorder ) - Vec_PtrPush( vMapped, pObj ); - // visit the transitive fanin of the selected cut - if ( pObj->fMarkB ) - { - Vec_Ptr_t * vSuper = Vec_PtrAlloc( 100 ); - Aig_ObjCollectSuper( pObj, vSuper ); - aArea = Vec_PtrSize(vSuper) + 1; - Vec_PtrForEachEntry( vSuper, pLeaf, i ) - aArea += Cnf_ManScanMapping_rec( p, Aig_Regular(pLeaf), vMapped, fPreorder ); - Vec_PtrFree( vSuper ); - //////////////////////////// - pObj->fMarkB = 1; - } - else - { - pCutBest = pObj->pData; - assert( pCutBest->Cost < 127 ); - aArea = pCutBest->Cost; - Cnf_CutForEachLeaf( p->pManAig, pCutBest, pLeaf, i ) - aArea += Cnf_ManScanMapping_rec( p, pLeaf, vMapped, fPreorder ); - } - // add the node to the mapping - if ( vMapped && !fPreorder ) - Vec_PtrPush( vMapped, pObj ); - return aArea; -} - -/**Function************************************************************* - - Synopsis [Computes area, references, and nodes used in the mapping.] - - Description [Collects the nodes in reverse topological order.] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Vec_Ptr_t * Cnf_ManScanMapping( Cnf_Man_t * p, int fCollect, int fPreorder ) -{ - Vec_Ptr_t * vMapped = NULL; - Aig_Obj_t * pObj; - int i; - // clean all references - Aig_ManForEachObj( p->pManAig, pObj, i ) - pObj->nRefs = 0; - // allocate the array - if ( fCollect ) - vMapped = Vec_PtrAlloc( 1000 ); - // collect nodes reachable from POs in the DFS order through the best cuts - p->aArea = 0; - Aig_ManForEachPo( p->pManAig, pObj, i ) - p->aArea += Cnf_ManScanMapping_rec( p, Aig_ObjFanin0(pObj), vMapped, fPreorder ); -// printf( "Variables = %6d. Clauses = %8d.\n", vMapped? Vec_PtrSize(vMapped) + Aig_ManPiNum(p->pManAig) + 1 : 0, p->aArea + 2 ); - return vMapped; -} - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - |