Enable arrival/required times in &nf.

src/aig/gia/giaIf.c

@@ -2031,6 +2031,11 @@ void Gia_ManTransferPacking( Gia_Man_t * p, Gia_Man_t * pGia )
 }
 void Gia_ManTransferTiming( Gia_Man_t * p, Gia_Man_t * pGia )
 {
+    if ( pGia->vInArrs || pGia->vOutReqs )
+    {
+        p->vInArrs     = pGia->vInArrs;     pGia->vInArrs     = NULL;
+        p->vOutReqs    = pGia->vOutReqs;    pGia->vOutReqs    = NULL;
+    }
     if ( pGia->pManTime == NULL || p == pGia )
         return;
     p->pManTime    = pGia->pManTime;    pGia->pManTime    = NULL;

src/aig/gia/giaNf.c

@@ -1250,15 +1250,18 @@ void Nf_ManCutMatchOne( Nf_Man_t * p, int iObj, int * pCut, int * pCutSet )
     Nf_ManCutMatchPrint( p, iObj, 1, &pBest->M[1][1] );
 */
 }
-static inline void Nf_ObjPrepareCi( Nf_Man_t * p, int iObj )
+static inline void Nf_ObjPrepareCi( Nf_Man_t * p, int iObj, float Time )
 {
+    Nf_Mat_t * pD0 = Nf_ObjMatchD( p, iObj, 0 );
+    Nf_Mat_t * pA0 = Nf_ObjMatchA( p, iObj, 0 );
     Nf_Mat_t * pD = Nf_ObjMatchD( p, iObj, 1 );
     Nf_Mat_t * pA = Nf_ObjMatchA( p, iObj, 1 );
+    pD0->D = pA0->D = pD->D = pA->D = Time;
     pD->fCompl = 1;
-    pD->D = p->InvDelay;
+    pD->D += p->InvDelay;
     pD->A = p->InvArea;
     pA->fCompl = 1;
-    pA->D = p->InvDelay;
+    pA->D += p->InvDelay;
     pA->A = p->InvArea;
     Nf_ObjMatchD( p, iObj, 0 )->fBest = 1;
     Nf_ObjMatchD( p, iObj, 1 )->fBest = 1;
@@ -1551,6 +1554,13 @@ int Nf_ManSetMapRefs( Nf_Man_t * p )
     {
         Required = Nf_ObjMatchD( p, Gia_ObjFaninId0p(p->pGia, pObj), Gia_ObjFaninC0(pObj) )->D;
         Required = p->pPars->fDoAverage ? Required * (100.0 + p->pPars->nRelaxRatio) / 100.0 : p->pPars->MapDelay;
+        // if external required time can be achieved, use it
+        if ( p->pGia->vOutReqs && Vec_FltEntry(p->pGia->vOutReqs, i) > 0 && Required <= Vec_FltEntry(p->pGia->vOutReqs, i) )
+            Required = Vec_FltEntry(p->pGia->vOutReqs, i);
+        // if external required cannot be achieved, set the earliest possible arrival time
+//        else if ( p->pGia->vOutReqs && Vec_FltEntry(p->pGia->vOutReqs, i) > 0 && Required > Vec_FltEntry(p->pGia->vOutReqs, i) )
+//            ptTime->Rise = ptTime->Fall = ptTime->Worst = Required;
+        // otherwise, set the global required time
         Nf_ObjUpdateRequired( p, Gia_ObjFaninId0p(p->pGia, pObj), Gia_ObjFaninC0(pObj), Required );
         Nf_ObjMapRefInc( p, Gia_ObjFaninId0p(p->pGia, pObj), Gia_ObjFaninC0(pObj));
     }
@@ -2111,7 +2121,7 @@ Gia_Man_t * Nf_ManPerformMapping( Gia_Man_t * pGia, Jf_Par_t * pPars )
     Nf_ManComputeCuts( p );
     Nf_ManPrintQuit( p );
     Gia_ManForEachCiId( p->pGia, Id, i )
-        Nf_ObjPrepareCi( p, Id );
+        Nf_ObjPrepareCi( p, Id, p->pGia->vInArrs ? Vec_FltEntry(p->pGia->vInArrs, i) : 0.0 );
     for ( p->Iter = 0; p->Iter < p->pPars->nRounds; p->Iter++ )
     {
         Nf_ManComputeMapping( p );

src/base/abci/abc.c

@@ -25884,12 +25884,21 @@ int Abc_CommandAbc9Get( Abc_Frame_t * pAbc, int argc, char ** argv )
         pGia = Gia_ManFromAig( pAig );
         Aig_ManStop( pAig );
     }
-    // replace
+    // copy names
     if ( fNames )
     {
         pGia->vNamesIn  = Abc_NtkCollectCiNames( pAbc->pNtkCur );
         pGia->vNamesOut = Abc_NtkCollectCoNames( pAbc->pNtkCur );
     }
+    // copy user timing information
+    if ( pAbc->pNtkCur->pManTime != NULL )
+    {
+        Abc_Ntk_t * pNtk = pAbc->pNtkCur;
+        Vec_FltFreeP( &pGia->vInArrs );
+        Vec_FltFreeP( &pGia->vOutReqs );
+        pGia->vInArrs = Vec_FltAllocArray( Abc_NtkGetCiArrivalFloats(pNtk), Abc_NtkCiNum(pNtk) ); 
+        pGia->vOutReqs = Vec_FltAllocArray( Abc_NtkGetCiArrivalFloats(pNtk), Abc_NtkCoNum(pNtk) ); 
+    }
     Abc_FrameUpdateGia( pAbc, pGia );
     return 0;
 
@@ -26003,6 +26012,19 @@ int Abc_CommandAbc9Put( Abc_Frame_t * pAbc, int argc, char ** argv )
             }
         }
     }
+    // transfer timing information
+    if ( pAbc->pGia->vInArrs || pAbc->pGia->vOutReqs )
+    {
+        Abc_Obj_t * pObj; int i;
+        Abc_NtkTimeInitialize( pNtk, NULL );
+        if ( pAbc->pGia->vInArrs )
+            Abc_NtkForEachCi( pNtk, pObj, i )
+                Abc_NtkTimeSetArrival( pNtk, Abc_ObjId(pObj), Vec_FltEntry(pAbc->pGia->vInArrs, i), Vec_FltEntry(pAbc->pGia->vInArrs, i) );
+        if ( pAbc->pGia->vOutReqs )
+            Abc_NtkForEachCo( pNtk, pObj, i )
+                Abc_NtkTimeSetRequired( pNtk, Abc_ObjId(pObj), Vec_FltEntry(pAbc->pGia->vOutReqs, i), Vec_FltEntry(pAbc->pGia->vOutReqs, i) );
+    }
+
     // replace the current network
     Abc_FrameReplaceCurrentNetwork( pAbc, pNtk );
     if ( fStatusClear )

src/base/abci/abcPrint.c

@@ -286,12 +286,15 @@ void Abc_NtkPrintStats( Abc_Ntk_t * pNtk, int fFactored, int fSaveBest, int fDum
         Abc_Print( 1,"  bdd  =%6d",  Abc_NtkGetBddNodeNum(pNtk) - nSingles );
     else if ( Abc_NtkHasMapping(pNtk) )
     {
+        int fHasTimeMan = (int)(pNtk->pManTime != NULL);
         assert( pNtk->pManFunc == Abc_FrameReadLibGen() );
         Abc_Print( 1,"  area =%5.2f", Abc_NtkGetMappedArea(pNtk) );
         Abc_Print( 1,"  delay =%5.2f", Abc_NtkDelayTrace(pNtk, NULL, NULL, 0) );
-        if ( pNtk->pManTime )
+        if ( !fHasTimeMan && pNtk->pManTime )
+        {
             Abc_ManTimeStop( pNtk->pManTime );
-        pNtk->pManTime = NULL;
+            pNtk->pManTime = NULL;
+        }
     }
     else if ( !Abc_NtkHasBlackbox(pNtk) )
     {