word Gia_ObjComputeTruthTable6Lut( Gia_Man_t * p, int iObj, Vec_Wrd_t * vTemp ) { int i, Fanin; assert( Vec_WrdSize(vTemp) == Gia_ManObjNum(p) ); assert( Gia_ObjIsLut(p, iObj) ); Gia_LutForEachFanin( p, iObj, Fanin, i ) Vec_WrdWriteEntry( vTemp, Fanin, s_Truth6[i] ); assert( i <= 6 ); Gia_ObjComputeTruthTable6Lut_rec( p, iObj, vTemp ); return Vec_WrdEntry( vTemp, iObj ); }
/**Function************************************************************* Synopsis [Performs structural hashing on the LUT functions.] Description [] SideEffects [] SeeAlso [] ***********************************************************************/ void * Dsm_ManDeriveGia( void * pGia, int fUseMuxes ) { Gia_Man_t * p = (Gia_Man_t *)pGia; Gia_Man_t * pNew, * pTemp; Vec_Int_t * vCover, * vLeaves; Gia_Obj_t * pObj; int k, i, iLut, iVar; word * pTruth; assert( Gia_ManHasMapping(p) ); // create new manager pNew = Gia_ManStart( 6*Gia_ManObjNum(p)/5 + 100 ); pNew->pName = Abc_UtilStrsav( p->pName ); pNew->pSpec = Abc_UtilStrsav( p->pSpec ); pNew->vLevels = Vec_IntStart( 6*Gia_ManObjNum(p)/5 + 100 ); if ( fUseMuxes ) pNew->pMuxes = ABC_CALLOC( unsigned, pNew->nObjsAlloc ); // map primary inputs Gia_ManFillValue(p); Gia_ManConst0(p)->Value = 0; Gia_ManForEachCi( p, pObj, i ) pObj->Value = Gia_ManAppendCi(pNew); // iterate through nodes used in the mapping vLeaves = Vec_IntAlloc( 16 ); vCover = Vec_IntAlloc( 1 << 16 ); Gia_ManHashStart( pNew ); Gia_ObjComputeTruthTableStart( p, Gia_ManLutSizeMax(p) ); Gia_ManForEachAnd( p, pObj, iLut ) { if ( Gia_ObjIsBuf(pObj) ) { pObj->Value = Gia_ManAppendBuf( pNew, Gia_ObjFanin0Copy(pObj) ); continue; } if ( !Gia_ObjIsLut(p, iLut) ) continue; // collect leaves Vec_IntClear( vLeaves ); Gia_LutForEachFanin( p, iLut, iVar, k ) Vec_IntPush( vLeaves, iVar ); pTruth = Gia_ObjComputeTruthTableCut( p, Gia_ManObj(p, iLut), vLeaves ); // collect incoming literals Vec_IntClear( vLeaves ); Gia_LutForEachFanin( p, iLut, iVar, k ) Vec_IntPush( vLeaves, Gia_ManObj(p, iVar)->Value ); Gia_ManObj(p, iLut)->Value = Dsm_ManTruthToGia( pNew, pTruth, vLeaves, vCover ); } Gia_ObjComputeTruthTableStop( p ); Gia_ManForEachCo( p, pObj, i ) pObj->Value = Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) ); Gia_ManHashStop( pNew ); Gia_ManSetRegNum( pNew, Gia_ManRegNum(p) ); Vec_IntFree( vLeaves ); Vec_IntFree( vCover ); /* Gia_ManForEachAnd( pNew, pObj, i ) { int iLev = Gia_ObjLevelId(pNew, i); int iLev0 = Gia_ObjLevelId(pNew, Gia_ObjFaninId0(pObj, i)); int iLev1 = Gia_ObjLevelId(pNew, Gia_ObjFaninId1(pObj, i)); assert( iLev == 1 + Abc_MaxInt(iLev0, iLev1) ); } */ // perform cleanup pNew = Gia_ManCleanup( pTemp = pNew ); Gia_ManStop( pTemp ); return pNew; }