/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Cec_ManHandleSpecialCases( Gia_Man_t * p, Cec_ParCec_t * pPars )
{
Gia_Obj_t * pObj1, * pObj2;
Gia_Obj_t * pDri1, * pDri2;
int i;
abctime clk = Abc_Clock();
Gia_ManSetPhase( p );
Gia_ManForEachPo( p, pObj1, i )
{
pObj2 = Gia_ManPo( p, ++i );
// check if they different on all-0 pattern
// (for example, when they have the same driver but complemented)
if ( Gia_ObjPhase(pObj1) != Gia_ObjPhase(pObj2) )
{
Abc_Print( 1, "Networks are NOT EQUIVALENT. Output %d trivially differs (different phase). ", i/2 );
Abc_PrintTime( 1, "Time", Abc_Clock() - clk );
pPars->iOutFail = i/2;
Cec_ManTransformPattern( p, i/2, NULL );
return 0;
}
// get the drivers
pDri1 = Gia_ObjFanin0(pObj1);
pDri2 = Gia_ObjFanin0(pObj2);
// drivers are different PIs
if ( Gia_ObjIsPi(p, pDri1) && Gia_ObjIsPi(p, pDri2) && pDri1 != pDri2 )
{
Abc_Print( 1, "Networks are NOT EQUIVALENT. Output %d trivially differs (different PIs). ", i/2 );
Abc_PrintTime( 1, "Time", Abc_Clock() - clk );
pPars->iOutFail = i/2;
Cec_ManTransformPattern( p, i/2, NULL );
// if their compl attributes are the same - one should be complemented
assert( Gia_ObjFaninC0(pObj1) == Gia_ObjFaninC0(pObj2) );
Abc_InfoSetBit( p->pCexComb->pData, Gia_ObjCioId(pDri1) );
return 0;
}
// one of the drivers is a PI; another is a constant 0
if ( (Gia_ObjIsPi(p, pDri1) && Gia_ObjIsConst0(pDri2)) ||
(Gia_ObjIsPi(p, pDri2) && Gia_ObjIsConst0(pDri1)) )
{
Abc_Print( 1, "Networks are NOT EQUIVALENT. Output %d trivially differs (PI vs. constant). ", i/2 );
Abc_PrintTime( 1, "Time", Abc_Clock() - clk );
pPars->iOutFail = i/2;
Cec_ManTransformPattern( p, i/2, NULL );
// the compl attributes are the same - the PI should be complemented
assert( Gia_ObjFaninC0(pObj1) == Gia_ObjFaninC0(pObj2) );
if ( Gia_ObjIsPi(p, pDri1) )
Abc_InfoSetBit( p->pCexComb->pData, Gia_ObjCioId(pDri1) );
else
Abc_InfoSetBit( p->pCexComb->pData, Gia_ObjCioId(pDri2) );
return 0;
}
}
/**Function*************************************************************
Synopsis [Duplicates AIG according to the timing manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Gia_Man_t * Gia_ManDupUnnormalize( Gia_Man_t * p )
{
Vec_Int_t * vNodes;
Gia_Man_t * pNew;
Gia_Obj_t * pObj;
int i;
vNodes = Gia_ManOrderWithBoxes( p );
if ( vNodes == NULL )
return NULL;
Gia_ManFillValue( p );
pNew = Gia_ManStart( Gia_ManObjNum(p) );
pNew->pName = Abc_UtilStrsav( p->pName );
pNew->pSpec = Abc_UtilStrsav( p->pSpec );
if ( p->pSibls )
pNew->pSibls = ABC_CALLOC( int, Gia_ManObjNum(p) );
Gia_ManForEachObjVec( vNodes, p, pObj, i )
{
if ( Gia_ObjIsAnd(pObj) )
{
pObj->Value = Gia_ManAppendAnd( pNew, Gia_ObjFanin0Copy(pObj), Gia_ObjFanin1Copy(pObj) );
if ( Gia_ObjSibl(p, Gia_ObjId(p, pObj)) )
pNew->pSibls[Abc_Lit2Var(pObj->Value)] = Abc_Lit2Var(Gia_ObjSiblObj(p, Gia_ObjId(p, pObj))->Value);
}
else if ( Gia_ObjIsCi(pObj) )
pObj->Value = Gia_ManAppendCi( pNew );
else if ( Gia_ObjIsCo(pObj) )
pObj->Value = Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) );
else if ( Gia_ObjIsConst0(pObj) )
pObj->Value = 0;
else assert( 0 );
}
Gia_ManSetRegNum( pNew, Gia_ManRegNum(p) );
Vec_IntFree( vNodes );
return pNew;
}
int Bmc_LoadAddCnf( void * pMan, int iLit )
{
Bmc_Load_t * p = (Bmc_Load_t *)pMan;
int Lits[3], iVar = Abc_Lit2Var(iLit);
Gia_Obj_t * pObj = Gia_ManObj( p->pGia, Vec_IntEntry(p->vSat2Id, iVar) );
p->nCallBacks1++;
if ( Gia_ObjIsCi(pObj) || Gia_ObjIsConst0(pObj) )
return 0;
assert( Gia_ObjIsAnd(pObj) );
if ( (Abc_LitIsCompl(iLit) ? pObj->fMark1 : pObj->fMark0) )
return 0;
Lits[0] = Abc_LitNot(iLit);
if ( Abc_LitIsCompl(iLit) )
{
Lits[1] = Abc_Var2Lit( Bmc_LoadGetSatVar(p, Gia_ObjFaninId0p(p->pGia, pObj)), !Gia_ObjFaninC0(pObj) );
Lits[2] = Abc_Var2Lit( Bmc_LoadGetSatVar(p, Gia_ObjFaninId1p(p->pGia, pObj)), !Gia_ObjFaninC1(pObj) );
sat_solver_clause_new( p->pSat, Lits, Lits + 3, 0 );
pObj->fMark1 = 1;
}
else
{
Lits[1] = Abc_Var2Lit( Bmc_LoadGetSatVar(p, Gia_ObjFaninId0p(p->pGia, pObj)), Gia_ObjFaninC0(pObj) );
sat_solver_clause_new( p->pSat, Lits, Lits + 2, 0 );
Lits[1] = Abc_Var2Lit( Bmc_LoadGetSatVar(p, Gia_ObjFaninId1p(p->pGia, pObj)), Gia_ObjFaninC1(pObj) );
sat_solver_clause_new( p->pSat, Lits, Lits + 2, 0 );
pObj->fMark0 = 1;
}
p->nCallBacks2++;
return 1;
}
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Marks objects reachables from Const0 and PIs/
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Gia_ManMarkAutonomous_rec( Gia_Man_t * p, Gia_Obj_t * pObj )
{
if ( Gia_ObjIsTravIdCurrent(p, pObj) )
return pObj->fMark0;
Gia_ObjSetTravIdCurrent(p, pObj);
assert( pObj->fMark0 == 0 );
if ( Gia_ObjIsPi(p, pObj) || Gia_ObjIsConst0(pObj) )
return pObj->fMark0 = 1;
if ( Gia_ObjIsCo(pObj) )
return pObj->fMark0 = Gia_ManMarkAutonomous_rec( p, Gia_ObjFanin0(pObj) );
if ( Gia_ObjIsCi(pObj) )
return pObj->fMark0 = Gia_ManMarkAutonomous_rec( p, Gia_ObjRoToRi(p, pObj) );
assert( Gia_ObjIsAnd(pObj) );
if ( Gia_ManMarkAutonomous_rec( p, Gia_ObjFanin0(pObj) ) )
return pObj->fMark0 = 1;
return pObj->fMark0 = Gia_ManMarkAutonomous_rec( p, Gia_ObjFanin1(pObj) );
}
