Propagating initial PI level during balancing.

src/aig/gia/giaBalance.c

@@ -984,6 +984,39 @@ Gia_Man_t * Gia_ManAreaBalance( Gia_Man_t * p, int fSimpleAnd, int nNewNodesMax,
   SeeAlso     []
 
 ***********************************************************************/
+void Gia_ManAigPrintPiLevels( Gia_Man_t * p )
+{
+    Gia_Obj_t * pObj;
+    int i;
+    Gia_ManForEachPi( p, pObj, i )
+        printf( "%d ", Gia_ObjLevel(p, pObj) );
+    printf( "\n" );
+}
+void Gia_ManAigTransferPiLevels( Gia_Man_t * pNew, Gia_Man_t * p )
+{
+/*
+    Gia_Obj_t * pObj;
+    int i;
+    if ( p->vLevels == NULL )
+        return;
+    Gia_ManCleanLevels( pNew, Gia_ManObjNum(pNew) );
+    Gia_ManForEachCi( pNew, pObj, i )
+        Gia_ObjSetLevel( pNew, pObj, Gia_ObjLevel(p, Gia_ManCi(p, i)) );
+*/
+    if ( p->pManTime ) pNew->pManTime = p->pManTime, p->pManTime = NULL;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Synthesis script.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
 Gia_Man_t * Gia_ManAigSyn2( Gia_Man_t * p, int fVerbose, int fVeryVerbose )
 {
     Gia_Man_t * pNew, * pTemp;
@@ -995,6 +1028,7 @@ Gia_Man_t * Gia_ManAigSyn2( Gia_Man_t * p, int fVerbose, int fVeryVerbose )
     // perform balancing
     pNew = Gia_ManAreaBalance( p, 0, ABC_INFINITY, fVeryVerbose, 0 );
     if ( fVerbose )     Gia_ManPrintStats( pNew, NULL );
+    Gia_ManAigTransferPiLevels( pNew, p );
     // perform mapping
     pNew = Jf_ManPerformMapping( pTemp = pNew, pPars );
     if ( fVerbose )     Gia_ManPrintStats( pNew, NULL );
@@ -1002,6 +1036,7 @@ Gia_Man_t * Gia_ManAigSyn2( Gia_Man_t * p, int fVerbose, int fVeryVerbose )
     // perform balancing
     pNew = Gia_ManAreaBalance( pTemp = pNew, 0, ABC_INFINITY, fVeryVerbose, 0 );
     if ( fVerbose )     Gia_ManPrintStats( pNew, NULL );
+    Gia_ManAigTransferPiLevels( pNew, pTemp );
     Gia_ManStop( pTemp );
     return pNew;
 }
@@ -1016,6 +1051,7 @@ Gia_Man_t * Gia_ManAigSyn3( Gia_Man_t * p, int fVerbose, int fVeryVerbose )
     // perform balancing
     pNew = Gia_ManAreaBalance( p, 0, ABC_INFINITY, fVeryVerbose, 0 );
     if ( fVerbose )     Gia_ManPrintStats( pNew, NULL );
+    Gia_ManAigTransferPiLevels( pNew, p );
     // perform mapping
     pPars->nLutSize = 6;
     pNew = Jf_ManPerformMapping( pTemp = pNew, pPars );
@@ -1024,6 +1060,7 @@ Gia_Man_t * Gia_ManAigSyn3( Gia_Man_t * p, int fVerbose, int fVeryVerbose )
     // perform balancing
     pNew = Gia_ManAreaBalance( pTemp = pNew, 0, ABC_INFINITY, fVeryVerbose, 0 );
     if ( fVerbose )     Gia_ManPrintStats( pNew, NULL );
+    Gia_ManAigTransferPiLevels( pNew, pTemp );
     Gia_ManStop( pTemp );
     // perform mapping
     pPars->nLutSize = 4;
@@ -1033,6 +1070,7 @@ Gia_Man_t * Gia_ManAigSyn3( Gia_Man_t * p, int fVerbose, int fVeryVerbose )
     // perform balancing
     pNew = Gia_ManAreaBalance( pTemp = pNew, 0, ABC_INFINITY, fVeryVerbose, 0 );
     if ( fVerbose )     Gia_ManPrintStats( pNew, NULL );
+    Gia_ManAigTransferPiLevels( pNew, pTemp );
     Gia_ManStop( pTemp );
     return pNew;
 }
@@ -1044,9 +1082,11 @@ Gia_Man_t * Gia_ManAigSyn4( Gia_Man_t * p, int fVerbose, int fVeryVerbose )
     if ( fVerbose )     Gia_ManPrintStats( p, NULL );
     if ( Gia_ManAndNum(p) == 0 )
         return Gia_ManDup(p);
+//Gia_ManAigPrintPiLevels( p );
     // perform balancing
     pNew = Gia_ManAreaBalance( p, 0, ABC_INFINITY, fVeryVerbose, 0 );
     if ( fVerbose )     Gia_ManPrintStats( pNew, NULL );
+    Gia_ManAigTransferPiLevels( pNew, p );
     // perform mapping
     pPars->nLutSize = 7;
     pNew = Jf_ManPerformMapping( pTemp = pNew, pPars );
@@ -1055,10 +1095,12 @@ Gia_Man_t * Gia_ManAigSyn4( Gia_Man_t * p, int fVerbose, int fVeryVerbose )
     // perform extraction
     pNew = Gia_ManPerformFx( pTemp = pNew, ABC_INFINITY, 0, 0, fVeryVerbose, 0 );
     if ( fVerbose )     Gia_ManPrintStats( pNew, NULL );
+    Gia_ManAigTransferPiLevels( pNew, pTemp );
     Gia_ManStop( pTemp );
     // perform balancing
     pNew = Gia_ManAreaBalance( pTemp = pNew, 0, ABC_INFINITY, fVeryVerbose, 0 );
     if ( fVerbose )     Gia_ManPrintStats( pNew, NULL );
+    Gia_ManAigTransferPiLevels( pNew, pTemp );
     Gia_ManStop( pTemp );
     // perform mapping
     pPars->nLutSize = 5;
@@ -1068,11 +1110,14 @@ Gia_Man_t * Gia_ManAigSyn4( Gia_Man_t * p, int fVerbose, int fVeryVerbose )
     // perform extraction
     pNew = Gia_ManPerformFx( pTemp = pNew, ABC_INFINITY, 0, 0, fVeryVerbose, 0 );
     if ( fVerbose )     Gia_ManPrintStats( pNew, NULL );
+    Gia_ManAigTransferPiLevels( pNew, pTemp );
     Gia_ManStop( pTemp );
     // perform balancing
     pNew = Gia_ManAreaBalance( pTemp = pNew, 0, ABC_INFINITY, fVeryVerbose, 0 );
     if ( fVerbose )     Gia_ManPrintStats( pNew, NULL );
+    Gia_ManAigTransferPiLevels( pNew, pTemp );
     Gia_ManStop( pTemp );
+//Gia_ManAigPrintPiLevels( pNew );
     return pNew;
 }