Improvements to the hierarchy/timing manager.

src/base/abc/abc.h

@@ -907,6 +907,7 @@ extern ABC_DLL void               Abc_ManTimeStop( Abc_ManTime_t * p );
 extern ABC_DLL void               Abc_ManTimeDup( Abc_Ntk_t * pNtkOld, Abc_Ntk_t * pNtkNew );
 extern ABC_DLL void               Abc_NtkSetNodeLevelsArrival( Abc_Ntk_t * pNtk );
 extern ABC_DLL float *            Abc_NtkGetCiArrivalFloats( Abc_Ntk_t * pNtk );
+extern ABC_DLL float *            Abc_NtkGetCoRequiredFloats( Abc_Ntk_t * pNtk );
 extern ABC_DLL Abc_Time_t *       Abc_NtkGetCiArrivalTimes( Abc_Ntk_t * pNtk );
 extern ABC_DLL Abc_Time_t *       Abc_NtkGetCoRequiredTimes( Abc_Ntk_t * pNtk );
 extern ABC_DLL float              Abc_NtkDelayTrace( Abc_Ntk_t * pNtk, Abc_Obj_t * pOut, Abc_Obj_t * pIn, int fPrint );

src/base/abci/abcIf.c

@@ -123,7 +123,7 @@ Abc_Ntk_t * Abc_NtkIf( Abc_Ntk_t * pNtk, If_Par_t * pPars )
 
     // get timing information
     pPars->pTimesArr = Abc_NtkGetCiArrivalFloats(pNtk);
-    pPars->pTimesReq = NULL;
+    pPars->pTimesReq = Abc_NtkGetCoRequiredFloats(pNtk);
 
     // set the latch paths
     if ( pPars->fLatchPaths && pPars->pTimesArr )

src/base/abci/abcTiming.c

@@ -557,18 +557,6 @@ Abc_Time_t * Abc_NtkGetCiArrivalTimes( Abc_Ntk_t * pNtk )
         p[i] = *Abc_NodeArrival(pNode);
     return p;
 }
-
-/**Function*************************************************************
-
-  Synopsis    [Sets the CI node levels according to the arrival info.]
-
-  Description []
-               
-  SideEffects []
-
-  SeeAlso     []
-
-***********************************************************************/
 Abc_Time_t * Abc_NtkGetCoRequiredTimes( Abc_Ntk_t * pNtk )
 {
     Abc_Time_t * p;
@@ -608,6 +596,19 @@ float * Abc_NtkGetCiArrivalFloats( Abc_Ntk_t * pNtk )
         p[i] = Abc_NodeArrival(pNode)->Worst;
     return p;
 }
+float * Abc_NtkGetCoRequiredFloats( Abc_Ntk_t * pNtk )
+{
+    float * p;
+    Abc_Obj_t * pNode;
+    int i;
+    if ( pNtk->pManTime == NULL )
+        return NULL;
+    // set the PO required times
+    p = ABC_CALLOC( float, Abc_NtkCoNum(pNtk) );
+    Abc_NtkForEachPo( pNtk, pNode, i )
+        p[i] = Abc_NodeRequired(pNode)->Worst;
+    return p;
+}
 
 
 /**Function*************************************************************

src/base/io/ioWriteBlif.c

@@ -712,6 +712,8 @@ void Io_WriteTimingInfo( FILE * pFile, Abc_Ntk_t * pNtk )
             continue;
         fprintf( pFile, ".output_required %s %g %g\n", Abc_ObjName(Abc_ObjFanin0(pNode)), pTime->Rise, pTime->Fall );
     }
+
+    fprintf( pFile, "\n" );
 }