Correcting incorrect handling of timing in several &-commands.

7 files changed, 172 insertions, 44 deletions

diff --git a/src/aig/gia/gia.h b/src/aig/gia/gia.h
index d7ad4300..7dc209a7 100644
--- a/src/aig/gia/gia.h
+++ b/src/aig/gia/gia.h
@@ -1188,7 +1188,7 @@ extern void                Gia_ManTransferPacking( Gia_Man_t * pGia, Gia_Man_t *
 extern void                Gia_ManTransferTiming( Gia_Man_t * pGia, Gia_Man_t * p );
 extern Gia_Man_t *         Gia_ManPerformMapping( Gia_Man_t * p, void * pIfPars, int fNormalized );
 extern Gia_Man_t *         Gia_ManPerformSopBalance( Gia_Man_t * p, int nCutNum, int nRelaxRatio, int fVerbose );
-extern Gia_Man_t *         Gia_ManPerformDsdBalance( Gia_Man_t * p, int nCutNum, int nRelaxRatio, int fVerbose );
+extern Gia_Man_t *         Gia_ManPerformDsdBalance( Gia_Man_t * p, int nLutSize, int nCutNum, int nRelaxRatio, int fVerbose );
 /*=== giaJf.c ===========================================================*/
 extern void                Jf_ManSetDefaultPars( Jf_Par_t * pPars );
 extern Gia_Man_t *         Jf_ManPerformMapping( Gia_Man_t * pGia, Jf_Par_t * pPars );
@@ -1262,8 +1262,9 @@ extern Gia_Man_t *         Gia_ManSeqStructSweep( Gia_Man_t * p, int fConst, int
 extern Gia_Man_t *         Gia_ManMapShrink4( Gia_Man_t * p, int fKeepLevel, int fVerbose );
 extern Gia_Man_t *         Gia_ManMapShrink6( Gia_Man_t * p, int nFanoutMax, int fKeepLevel, int fVerbose );
 /*=== giaSopb.c ============================================================*/
-extern Gia_Man_t *         Gia_ManPerformSopBalanceWin( Gia_Man_t * p, int LevelMax, int nTimeWindow, int nCutNum, int nRelaxRatio, int fVerbose );
 extern Gia_Man_t *         Gia_ManExtractWindow( Gia_Man_t * p, int LevelMax, int nTimeWindow, int fVerbose );
+extern Gia_Man_t *         Gia_ManPerformSopBalanceWin( Gia_Man_t * p, int LevelMax, int nTimeWindow, int nCutNum, int nRelaxRatio, int fVerbose );
+extern Gia_Man_t *         Gia_ManPerformDsdBalanceWin( Gia_Man_t * p, int LevelMax, int nTimeWindow, int nLutSize, int nCutNum, int nRelaxRatio, int fVerbose );
 /*=== giaSort.c ============================================================*/
 extern int *               Gia_SortFloats( float * pArray, int * pPerm, int nSize );
 /*=== giaSim.c ============================================================*/
diff --git a/src/aig/gia/giaBalance.c b/src/aig/gia/giaBalance.c
index 918b3009..16d69920 100644
--- a/src/aig/gia/giaBalance.c
+++ b/src/aig/gia/giaBalance.c
@@ -976,6 +976,7 @@ Gia_Man_t * Gia_ManAreaBalance( Gia_Man_t * p, int fSimpleAnd, int nNewNodesMax,
         pNew2 = Gia_ManDupNormalize( pNew1 = pNew2 );
         Gia_ManStop( pNew1 );
     }
+    Gia_ManTransferTiming( p, pNew2 );
     return pNew2;
 }
 
@@ -998,19 +999,6 @@ void Gia_ManAigPrintPiLevels( Gia_Man_t * p )
         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*************************************************************
 
@@ -1023,9 +1011,9 @@ void Gia_ManAigTransferPiLevels( Gia_Man_t * pNew, Gia_Man_t * p )
   SeeAlso     []
 
 ***********************************************************************/
-Gia_Man_t * Gia_ManAigSyn2( Gia_Man_t * p, int fOldAlgo, int fCoarsen, int fCutMin, int nRelaxRatio, int fDelayMin, int fVerbose, int fVeryVerbose )
+Gia_Man_t * Gia_ManAigSyn2( Gia_Man_t * pInit, int fOldAlgo, int fCoarsen, int fCutMin, int nRelaxRatio, int fDelayMin, int fVerbose, int fVeryVerbose )
 {
-    Gia_Man_t * pNew, * pTemp;
+    Gia_Man_t * p, * pNew, * pTemp;
     Jf_Par_t Pars, * pPars = &Pars;
     if ( fOldAlgo )
     {
@@ -1041,13 +1029,13 @@ Gia_Man_t * Gia_ManAigSyn2( Gia_Man_t * p, int fOldAlgo, int fCoarsen, int fCutM
         pPars->nAreaTuner  = 1;
         pPars->nCutNum     = 4;
     }
-    if ( fVerbose )     Gia_ManPrintStats( p, NULL );
-    p = Gia_ManDup( pTemp = p );
-    Gia_ManAigTransferPiLevels( p, pTemp );
+    if ( fVerbose )  Gia_ManPrintStats( pInit, NULL );
+    p = Gia_ManDup( pInit );
+    Gia_ManTransferTiming( pInit, p );
     if ( Gia_ManAndNum(p) == 0 )
         return p;
     // delay optimization
-    if ( fDelayMin )
+    if ( fDelayMin && p->pManTime == NULL )
     {
         int Area0, Area1, Delay0, Delay1;
         int fCutMin = pPars->fCutMin;
@@ -1064,7 +1052,7 @@ Gia_Man_t * Gia_ManAigSyn2( Gia_Man_t * p, int fOldAlgo, int fCoarsen, int fCutM
         Area0  = (int)pPars->Area;
         Delay0 = (int)pPars->Delay;
         // perform balancing
-        pNew = Gia_ManPerformDsdBalance( p, 4, 0, 0 );
+        pNew = Gia_ManPerformDsdBalance( p, 6, 4, 0, 0 );
         // perform mapping again
         if ( fOldAlgo )
             Jf_ManPerformMapping( pNew, pPars );
@@ -1075,7 +1063,6 @@ Gia_Man_t * Gia_ManAigSyn2( Gia_Man_t * p, int fOldAlgo, int fCoarsen, int fCutM
         // choose the best result
         if ( Delay1 < Delay0 - 1 || (Delay1 == Delay0 + 1 && 100.0 * (Area1 - Area0) / Area1 < 3.0) )
         {
-            Gia_ManAigTransferPiLevels( pNew, p );
             Gia_ManStop( p );
             p = pNew;
         }
@@ -1092,7 +1079,6 @@ Gia_Man_t * Gia_ManAigSyn2( Gia_Man_t * p, int fOldAlgo, int fCoarsen, int fCutM
     // perform balancing
     pNew = Gia_ManAreaBalance( p, 0, ABC_INFINITY, fVeryVerbose, 0 );
     if ( fVerbose )     Gia_ManPrintStats( pNew, NULL );
-    Gia_ManAigTransferPiLevels( pNew, p );
     Gia_ManStop( p );
     // perform mapping
     if ( fOldAlgo )
@@ -1101,14 +1087,10 @@ Gia_Man_t * Gia_ManAigSyn2( Gia_Man_t * p, int fOldAlgo, int fCoarsen, int fCutM
         pNew = Lf_ManPerformMapping( pTemp = pNew, pPars );
     if ( fVerbose )     Gia_ManPrintStats( pNew, NULL );
     if ( pTemp != pNew )
-    {
-        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 );
     return pNew;
 }
@@ -1124,7 +1106,6 @@ 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 );
@@ -1133,7 +1114,6 @@ 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;
@@ -1143,7 +1123,6 @@ 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;
 }
@@ -1160,7 +1139,6 @@ Gia_Man_t * Gia_ManAigSyn4( 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 = 7;
     pNew = Jf_ManPerformMapping( pTemp = pNew, pPars );
@@ -1169,12 +1147,10 @@ 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;
@@ -1184,12 +1160,10 @@ 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;
diff --git a/src/aig/gia/giaFx.c b/src/aig/gia/giaFx.c
index 7c5ae010..cd81aa54 100644
--- a/src/aig/gia/giaFx.c
+++ b/src/aig/gia/giaFx.c
@@ -464,6 +464,7 @@ Gia_Man_t * Gia_ManPerformFx( Gia_Man_t * p, int nNewNodesMax, int LitCountMax,
 //    Abc_PrintTime( 1, "Fx runtime", Abc_Clock() - clk );
     // insert information
     pNew = Gia_ManFxInsert( p, vCubes, vCompl );
+    Gia_ManTransferTiming( p, pNew );
     // cleanup
     Vec_WecFree( vCubes );
     Vec_StrFree( vCompl );
diff --git a/src/aig/gia/giaIf.c b/src/aig/gia/giaIf.c
index 6e04efd4..4ed46e96 100644
--- a/src/aig/gia/giaIf.c
+++ b/src/aig/gia/giaIf.c
@@ -1619,12 +1619,13 @@ void Gia_ManTransferPacking( Gia_Man_t * pGia, Gia_Man_t * p )
 }
 void Gia_ManTransferTiming( Gia_Man_t * pGia, Gia_Man_t * p )
 {
+    if ( pGia->pManTime == NULL )
+        return;
     p->pManTime   = pGia->pManTime;   pGia->pManTime   = NULL;
     p->pAigExtra  = pGia->pAigExtra;  pGia->pAigExtra  = NULL;
     p->nAnd2Delay = pGia->nAnd2Delay; pGia->nAnd2Delay = 0;
 }
 
-
 /**Function*************************************************************
 
   Synopsis    [Interface of LUT mapping package.]
@@ -1741,6 +1742,7 @@ Gia_Man_t * Gia_ManPerformSopBalance( Gia_Man_t * p, int nCutNum, int nRelaxRati
     If_ManPerformMapping( pIfMan );
     pNew = Gia_ManFromIfAig( pIfMan );
     If_ManStop( pIfMan );
+    Gia_ManTransferTiming( p, pNew );
     // transfer name
     assert( pNew->pName == NULL );
     pNew->pName = Abc_UtilStrsav( p->pName );
@@ -1748,7 +1750,7 @@ Gia_Man_t * Gia_ManPerformSopBalance( Gia_Man_t * p, int nCutNum, int nRelaxRati
     Gia_ManSetRegNum( pNew, Gia_ManRegNum(p) );
     return pNew;
 }
-Gia_Man_t * Gia_ManPerformDsdBalance( Gia_Man_t * p, int nCutNum, int nRelaxRatio, int fVerbose )
+Gia_Man_t * Gia_ManPerformDsdBalance( Gia_Man_t * p, int nLutSize, int nCutNum, int nRelaxRatio, int fVerbose )
 {
     Gia_Man_t * pNew;
     If_Man_t * pIfMan;
@@ -1757,7 +1759,7 @@ Gia_Man_t * Gia_ManPerformDsdBalance( Gia_Man_t * p, int nCutNum, int nRelaxRati
     pPars->nCutsMax    = nCutNum;
     pPars->nRelaxRatio = nRelaxRatio;
     pPars->fVerbose    = fVerbose;
-    pPars->nLutSize    = 6;
+    pPars->nLutSize    = nLutSize;
     pPars->fDsdBalance = 1;
     pPars->fUseDsd     = 1;
     pPars->fCutMin     = 1;
@@ -1773,6 +1775,7 @@ Gia_Man_t * Gia_ManPerformDsdBalance( Gia_Man_t * p, int nCutNum, int nRelaxRati
     If_ManPerformMapping( pIfMan );
     pNew = Gia_ManFromIfAig( pIfMan );
     If_ManStop( pIfMan );
+    Gia_ManTransferTiming( p, pNew );
     // transfer name
     assert( pNew->pName == NULL );
     pNew->pName = Abc_UtilStrsav( p->pName );
diff --git a/src/aig/gia/giaSopb.c b/src/aig/gia/giaSopb.c
index 318e9bd9..b285daea 100644
--- a/src/aig/gia/giaSopb.c
+++ b/src/aig/gia/giaSopb.c
@@ -233,6 +233,35 @@ Vec_Int_t * Gia_ManFindLatest( Gia_Man_t * p, int LevelMax, int nTimeWindow )
   SeeAlso     []
 
 ***********************************************************************/
+Gia_Man_t * Gia_ManExtractWindow( Gia_Man_t * p, int LevelMax, int nTimeWindow, int fVerbose )
+{
+    Vec_Int_t * vOuts;
+    Gia_Man_t * pWin;
+    assert( !LevelMax != !nTimeWindow );
+    vOuts = Gia_ManFindLatest( p, LevelMax, nTimeWindow );
+    if ( fVerbose )
+        printf( "Collected %d outputs to extract.\n", Vec_IntSize(vOuts) );
+    if ( Vec_IntSize(vOuts) == 0 )
+    {
+        Vec_IntFree( vOuts );
+        return Gia_ManDup( p );
+    }
+    pWin = Gia_ManExtractWin( p, vOuts, 1 );
+    Vec_IntFree( vOuts );
+    return pWin;
+}
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
 Gia_Man_t * Gia_ManPerformSopBalanceWin( Gia_Man_t * p, int LevelMax, int nTimeWindow, int nCutNum, int nRelaxRatio, int fVerbose )
 {
     Vec_Int_t * vOuts;
@@ -266,10 +295,10 @@ Gia_Man_t * Gia_ManPerformSopBalanceWin( Gia_Man_t * p, int LevelMax, int nTimeW
   SeeAlso     []
 
 ***********************************************************************/
-Gia_Man_t * Gia_ManExtractWindow( Gia_Man_t * p, int LevelMax, int nTimeWindow, int fVerbose )
+Gia_Man_t * Gia_ManPerformDsdBalanceWin( Gia_Man_t * p, int LevelMax, int nTimeWindow, int nLutSize, int nCutNum, int nRelaxRatio, int fVerbose )
 {
     Vec_Int_t * vOuts;
-    Gia_Man_t * pWin;
+    Gia_Man_t * pNew, * pWin, * pWinNew;
     assert( !LevelMax != !nTimeWindow );
     vOuts = Gia_ManFindLatest( p, LevelMax, nTimeWindow );
     if ( fVerbose )
@@ -279,9 +308,13 @@ Gia_Man_t * Gia_ManExtractWindow( Gia_Man_t * p, int LevelMax, int nTimeWindow,
         Vec_IntFree( vOuts );
         return Gia_ManDup( p );
     }
-    pWin = Gia_ManExtractWin( p, vOuts, 1 );
+    pWin = Gia_ManExtractWin( p, vOuts, 0 );
+    pWinNew = Gia_ManPerformDsdBalance( pWin, nLutSize, nCutNum, nRelaxRatio, fVerbose );
+    Gia_ManStop( pWin );
+    pNew = Gia_ManInsertWin( p, vOuts, pWinNew );
+    Gia_ManStop( pWinNew );
     Vec_IntFree( vOuts );
-    return pWin;
+    return pNew;
 }
 
 ////////////////////////////////////////////////////////////////////////
diff --git a/src/base/abci/abc.c b/src/base/abci/abc.c
index 338033b9..5de41722 100644
--- a/src/base/abci/abc.c
+++ b/src/base/abci/abc.c
@@ -380,6 +380,7 @@ static int Abc_CommandAbc9Sweep              ( Abc_Frame_t * pAbc, int argc, cha
 static int Abc_CommandAbc9Force              ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandAbc9Embed              ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandAbc9Sopb               ( Abc_Frame_t * pAbc, int argc, char ** argv );
+static int Abc_CommandAbc9Dsdb               ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandAbc9If                 ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandAbc9Iff                ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandAbc9If2                ( Abc_Frame_t * pAbc, int argc, char ** argv );
@@ -964,6 +965,7 @@ void Abc_Init( Abc_Frame_t * pAbc )
     Cmd_CommandAdd( pAbc, "ABC9",         "&force",        Abc_CommandAbc9Force,        0 );
     Cmd_CommandAdd( pAbc, "ABC9",         "&embed",        Abc_CommandAbc9Embed,        0 );
     Cmd_CommandAdd( pAbc, "ABC9",         "&sopb",         Abc_CommandAbc9Sopb,         0 );
+    Cmd_CommandAdd( pAbc, "ABC9",         "&dsdb",         Abc_CommandAbc9Dsdb,         0 );
     Cmd_CommandAdd( pAbc, "ABC9",         "&if",           Abc_CommandAbc9If,           0 );
     Cmd_CommandAdd( pAbc, "ABC9",         "&iff",          Abc_CommandAbc9Iff,          0 );
     Cmd_CommandAdd( pAbc, "ABC9",         "&if2",          Abc_CommandAbc9If2,          0 );
@@ -30301,6 +30303,120 @@ usage:
   SeeAlso     []
 
 ***********************************************************************/
+int Abc_CommandAbc9Dsdb( Abc_Frame_t * pAbc, int argc, char ** argv )
+{
+    Gia_Man_t * pTemp;
+    int nLevelMax   = 0;
+    int nTimeWindow = 0;
+    int nLutSize    = 6;
+    int nCutNum     = 8;
+    int nRelaxRatio = 0;
+    int c, fVerbose = 0;
+    Extra_UtilGetoptReset();
+    while ( ( c = Extra_UtilGetopt( argc, argv, "LWKCRvh" ) ) != EOF )
+    {
+        switch ( c )
+        {
+        case 'L':
+            if ( globalUtilOptind >= argc )
+            {
+                Abc_Print( -1, "Command line switch \"-L\" should be followed by an integer.\n" );
+                goto usage;
+            }
+            nLevelMax = atoi(argv[globalUtilOptind]);
+            globalUtilOptind++;
+            if ( nLevelMax < 0 )
+                goto usage;
+            break;
+        case 'W':
+            if ( globalUtilOptind >= argc )
+            {
+                Abc_Print( -1, "Command line switch \"-W\" should be followed by an integer.\n" );
+                goto usage;
+            }
+            nTimeWindow = atoi(argv[globalUtilOptind]);
+            globalUtilOptind++;
+            if ( nTimeWindow < 0 )
+                goto usage;
+            break;
+        case 'K':
+            if ( globalUtilOptind >= argc )
+            {
+                Abc_Print( -1, "Command line switch \"-K\" should be followed by an integer.\n" );
+                goto usage;
+            }
+            nLutSize = atoi(argv[globalUtilOptind]);
+            globalUtilOptind++;
+            if ( nLutSize < 0 )
+                goto usage;
+            break;
+         case 'C':
+            if ( globalUtilOptind >= argc )
+            {
+                Abc_Print( -1, "Command line switch \"-C\" should be followed by an integer.\n" );
+                goto usage;
+            }
+            nCutNum = atoi(argv[globalUtilOptind]);
+            globalUtilOptind++;
+            if ( nCutNum < 0 )
+                goto usage;
+            break;
+        case 'R':
+            if ( globalUtilOptind >= argc )
+            {
+                Abc_Print( -1, "Command line switch \"-R\" should be followed by an integer.\n" );
+                goto usage;
+            }
+            nRelaxRatio = atoi(argv[globalUtilOptind]);
+            globalUtilOptind++;
+            if ( nRelaxRatio < 0 )
+                goto usage;
+            break;
+        case 'v':
+            fVerbose ^= 1;
+            break;
+        case 'h':
+            goto usage;
+        default:
+            goto usage;
+        }
+    }
+    if ( pAbc->pGia == NULL )
+    {
+        Abc_Print( -1, "Abc_CommandAbc9Dsdb(): There is no AIG.\n" );
+        return 1;
+    }
+    if ( nLevelMax || nTimeWindow )
+        pTemp = Gia_ManPerformDsdBalanceWin( pAbc->pGia, nLevelMax, nTimeWindow, nLutSize, nCutNum, nRelaxRatio, fVerbose );
+    else
+        pTemp = Gia_ManPerformDsdBalance( pAbc->pGia, nLutSize, nCutNum, nRelaxRatio, fVerbose );
+    Abc_FrameUpdateGia( pAbc, pTemp );
+    return 0;
+
+usage:
+    Abc_Print( -2, "usage: &sopb [-LWKCR num] [-vh]\n" );
+    Abc_Print( -2, "\t         performs SOP balancing\n" );
+    Abc_Print( -2, "\t-L num : optimize paths above this level [default = %d]\n", nLevelMax );
+    Abc_Print( -2, "\t-W num : optimize paths falling into this window [default = %d]\n", nTimeWindow );
+    Abc_Print( -2, "\t-K num : the number of LUT inputs (LUT size) [default = %d]\n", nLutSize );
+    Abc_Print( -2, "\t-C num : the number of cuts at a node [default = %d]\n", nCutNum );
+    Abc_Print( -2, "\t-R num : the delay relaxation ratio (num >= 0) [default = %d]\n", nRelaxRatio );
+    Abc_Print( -2, "\t-v     : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" );
+    Abc_Print( -2, "\t-h     : print the command usage\n");
+    return 1;
+}
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
 int Abc_CommandAbc9If( Abc_Frame_t * pAbc, int argc, char ** argv )
 {
     char Buffer[200];
diff --git a/src/map/if/ifMap.c b/src/map/if/ifMap.c
index b2063f88..2b2d1758 100644
--- a/src/map/if/ifMap.c
+++ b/src/map/if/ifMap.c
@@ -99,7 +99,7 @@ void If_ObjPerformMappingAnd( If_Man_t * p, If_Obj_t * pObj, int Mode, int fPrep
     If_Cut_t * pCut0R, * pCut1R;
     int fFunc0R, fFunc1R;
     int i, k, v, iCutDsd, fChange;
-    int fSave0 = p->pPars->fDelayOpt || p->pPars->fDelayOptLut || p->pPars->fDsdBalance || p->pPars->fUserRecLib;
+    int fSave0 = p->pPars->fDelayOpt || p->pPars->fDelayOptLut || p->pPars->fDsdBalance || p->pPars->fUserRecLib || p->pPars->pLutStruct != NULL;
     assert( !If_ObjIsAnd(pObj->pFanin0) || pObj->pFanin0->pCutSet->nCuts > 0 );
     assert( !If_ObjIsAnd(pObj->pFanin1) || pObj->pFanin1->pCutSet->nCuts > 0 );