Changes to LUT mappers.

src/base/abci/abc.c

@@ -231,6 +231,10 @@ static int Abc_CommandSuperChoiceLut         ( Abc_Frame_t * pAbc, int argc, cha
 //static int Abc_CommandFpgaFast               ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandIf                     ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandIfif                   ( Abc_Frame_t * pAbc, int argc, char ** argv );
+static int Abc_CommandDsdSave                ( Abc_Frame_t * pAbc, int argc, char ** argv );
+static int Abc_CommandDsdLoad                ( Abc_Frame_t * pAbc, int argc, char ** argv );
+static int Abc_CommandDsdFree                ( Abc_Frame_t * pAbc, int argc, char ** argv );
+static int Abc_CommandDsdPs                  ( Abc_Frame_t * pAbc, int argc, char ** argv );
 
 static int Abc_CommandScut                   ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandInit                   ( Abc_Frame_t * pAbc, int argc, char ** argv );
@@ -784,6 +788,10 @@ void Abc_Init( Abc_Frame_t * pAbc )
 //    Cmd_CommandAdd( pAbc, "FPGA mapping", "ffpga",         Abc_CommandFpgaFast,         1 );
     Cmd_CommandAdd( pAbc, "FPGA mapping", "if",            Abc_CommandIf,               1 );
     Cmd_CommandAdd( pAbc, "FPGA mapping", "ifif",          Abc_CommandIfif,             1 );
+    Cmd_CommandAdd( pAbc, "FPGA mapping", "dsd_save",      Abc_CommandDsdSave,          0 );
+    Cmd_CommandAdd( pAbc, "FPGA mapping", "dsd_load",      Abc_CommandDsdLoad,          0 );
+    Cmd_CommandAdd( pAbc, "FPGA mapping", "dsd_free",      Abc_CommandDsdFree,          0 );
+    Cmd_CommandAdd( pAbc, "FPGA mapping", "dsd_ps",        Abc_CommandDsdPs,            0 );
 
 //    Cmd_CommandAdd( pAbc, "Sequential",   "scut",          Abc_CommandScut,             0 );
     Cmd_CommandAdd( pAbc, "Sequential",   "init",          Abc_CommandInit,             1 );
@@ -15088,6 +15096,29 @@ int Abc_CommandIf( Abc_Frame_t * pAbc, int argc, char ** argv )
         pPars->fUsePerm    =  1;
     }
 
+    if ( pPars->fUseDsd )
+    {
+        int LutSize = (pPars->pLutStruct && pPars->pLutStruct[2] == 0)? pPars->pLutStruct[0] - '0' : 0;
+        If_DsdMan_t * p = (If_DsdMan_t *)Abc_FrameReadManDsd();
+        if ( pPars->pLutStruct && pPars->pLutStruct[2] != 0 )
+        {
+            printf( "DSD only works for LUT structures XY.\n" );
+            return 0;
+        }
+        if ( p && pPars->nLutSize > If_DsdManVarNum(p) )
+        {
+            printf( "DSD manager has incompatible number of variables.\n" );
+            return 0;
+        }
+        if ( p && LutSize != If_DsdManLutSize(p) )
+        {
+            printf( "DSD manager has different LUT size.\n" );
+            return 0;
+        }
+        if ( p == NULL )
+            Abc_FrameSetManDsd( If_DsdManAlloc(pPars->nLutSize, LutSize) );
+    }
+
     if ( pPars->fUserRecLib )
     {
         assert( Abc_NtkRecIsRunning3() );
@@ -15322,6 +15353,210 @@ usage:
     return 1;
 }
 
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Abc_CommandDsdSave( Abc_Frame_t * pAbc, int argc, char ** argv )
+{
+    char * FileName;
+    char ** pArgvNew;
+    int nArgcNew;
+    int c;
+
+    Extra_UtilGetoptReset();
+    while ( ( c = Extra_UtilGetopt( argc, argv, "h" ) ) != EOF )
+    {
+        switch ( c )
+        {
+        case 'h':
+            goto usage;
+        default:
+            goto usage;
+        }
+    }
+
+    if ( !Abc_FrameReadManDsd() )
+    {
+        Abc_Print( -1, "The DSD manager is not started.\n" );
+        return 1;
+    }
+
+    pArgvNew = argv + globalUtilOptind;
+    nArgcNew = argc - globalUtilOptind;
+    if ( nArgcNew != 1 )
+    {
+        Abc_Print( -1, "File name is not given on the command line.\n" );
+        return 1;
+    }
+    // get the input file name
+    FileName = (nArgcNew == 1) ? pArgvNew[0] : NULL;
+    If_DsdManSave( (If_DsdMan_t *)Abc_FrameReadManDsd(), FileName );
+    return 0;
+
+usage:
+    Abc_Print( -2, "usage: dsd_save [-h] <file>\n" );
+    Abc_Print( -2, "\t         saves DSD manager into a file\n");
+    Abc_Print( -2, "\t-h     : print the command usage\n");
+    Abc_Print( -2, "\t<file> : (optional) file name to write\n");
+    return 1;
+}
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Abc_CommandDsdLoad( Abc_Frame_t * pAbc, int argc, char ** argv )
+{
+    char * FileName, * pTemp;
+    char ** pArgvNew;
+    int c, nArgcNew;
+    FILE * pFile;
+    If_DsdMan_t * pDsdMan;
+    Extra_UtilGetoptReset();
+    while ( ( c = Extra_UtilGetopt( argc, argv, "h" ) ) != EOF )
+    {
+        switch ( c )
+        {
+        case 'h':
+            goto usage;
+        default:
+            goto usage;
+        }
+    }
+    pArgvNew = argv + globalUtilOptind;
+    nArgcNew = argc - globalUtilOptind;
+    if ( nArgcNew != 1 )
+    {
+        Abc_Print( -1, "File name is not given on the command line.\n" );
+        return 1;
+    }
+    // get the input file name
+    FileName = pArgvNew[0];
+    // fix the wrong symbol
+    for ( pTemp = FileName; *pTemp; pTemp++ )
+        if ( *pTemp == '>' )
+            *pTemp = '\\';
+    if ( (pFile = fopen( FileName, "r" )) == NULL )
+    {
+        Abc_Print( -1, "Cannot open input file \"%s\". ", FileName );
+        if ( (FileName = Extra_FileGetSimilarName( FileName, ".aig", NULL, NULL, NULL, NULL )) )
+            Abc_Print( 1, "Did you mean \"%s\"?", FileName );
+        Abc_Print( 1, "\n" );
+        return 1;
+    }
+    fclose( pFile );
+    pDsdMan = If_DsdManLoad(FileName);
+    if ( pDsdMan == NULL )
+        return 1;
+    Abc_FrameSetManDsd( pDsdMan );
+    return 0;
+
+usage:
+    Abc_Print( -2, "usage: dsd_load [-h] <file>\n" );
+    Abc_Print( -2, "\t         loads DSD manager from file\n");
+    Abc_Print( -2, "\t-h     : print the command usage\n");
+    Abc_Print( -2, "\t<file> : file name to read\n");
+    return 1;
+}
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Abc_CommandDsdFree( Abc_Frame_t * pAbc, int argc, char ** argv )
+{
+    int c;
+    Extra_UtilGetoptReset();
+    while ( ( c = Extra_UtilGetopt( argc, argv, "h" ) ) != EOF )
+    {
+        switch ( c )
+        {
+        case 'h':
+            goto usage;
+        default:
+            goto usage;
+        }
+    }
+    if ( !Abc_FrameReadManDsd() )
+    {
+        Abc_Print( 1, "The DSD manager is not started.\n" );
+        return 0;
+    }
+    Abc_FrameSetManDsd( NULL );
+    return 0;
+
+usage:
+    Abc_Print( -2, "usage: dsd_ps [-h]\n" );
+    Abc_Print( -2, "\t        deletes DSD manager\n" );
+    Abc_Print( -2, "\t-h    : print the command usage\n");
+    return 1;
+}
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Abc_CommandDsdPs( Abc_Frame_t * pAbc, int argc, char ** argv )
+{
+    int c, fPrintLib = 0;
+    Extra_UtilGetoptReset();
+    while ( ( c = Extra_UtilGetopt( argc, argv, "ph" ) ) != EOF )
+    {
+        switch ( c )
+        {
+        case 'p':
+            fPrintLib ^= 1;
+            break;
+        case 'h':
+            goto usage;
+        default:
+            goto usage;
+        }
+    }
+    if ( !Abc_FrameReadManDsd() )
+    {
+        Abc_Print( 1, "The DSD manager is not started.\n" );
+        return 0;
+    }
+    If_DsdManPrint( (If_DsdMan_t *)Abc_FrameReadManDsd(), NULL, 0 );
+    return 0;
+
+usage:
+    Abc_Print( -2, "usage: dsd_ps [-h]\n" );
+    Abc_Print( -2, "\t        prints statistics of DSD manager\n" );
+    Abc_Print( -2, "\t-h    : print the command usage\n");
+    return 1;
+}
+
 
 
 /**Function*************************************************************

src/base/abci/abcIf.c

@@ -137,6 +137,15 @@ Abc_Ntk_t * Abc_NtkIf( Abc_Ntk_t * pNtk, If_Par_t * pPars )
     if ( pPars->fPower )
         Abc_NtkIfComputeSwitching( pNtk, pIfMan );
 
+    // create DSD manager
+    if ( pPars->fUseDsd )
+    {
+        If_DsdMan_t * p = (If_DsdMan_t *)Abc_FrameReadManDsd();
+        assert( pPars->nLutSize <= If_DsdManVarNum(p) );
+        assert( (pPars->pLutStruct == NULL && If_DsdManLutSize(p) == 0) || (pPars->pLutStruct && pPars->pLutStruct[0] - '0' == If_DsdManLutSize(p)) );
+        pIfMan->pIfDsdMan = (If_DsdMan_t *)Abc_FrameReadManDsd();
+    }
+
     // perform FPGA mapping
     if ( !If_ManPerformMapping( pIfMan ) )
     {

src/base/main/main.h

@@ -106,6 +106,8 @@ extern ABC_DLL void *          Abc_FrameReadLibVer();
 extern ABC_DLL void *          Abc_FrameReadLibScl();                  
 extern ABC_DLL void *          Abc_FrameReadManDd();                     
 extern ABC_DLL void *          Abc_FrameReadManDec();                    
+extern ABC_DLL void *          Abc_FrameReadManDsd();           
+         
 extern ABC_DLL char *          Abc_FrameReadFlag( char * pFlag ); 
 extern ABC_DLL int             Abc_FrameIsFlagEnabled( char * pFlag );
 extern ABC_DLL int             Abc_FrameIsBatchMode();
@@ -138,6 +140,7 @@ extern ABC_DLL void            Abc_FrameSetFlag( char * pFlag, char * pValue );
 extern ABC_DLL void            Abc_FrameSetCex( Abc_Cex_t * pCex );
 extern ABC_DLL void            Abc_FrameSetNFrames( int nFrames );
 extern ABC_DLL void            Abc_FrameSetStatus( int Status );
+extern ABC_DLL void            Abc_FrameSetManDsd( void * pMan );
 
 extern ABC_DLL int             Abc_FrameCheckPoConst( Abc_Frame_t * p, int iPoNum );
 

src/base/main/mainFrame.c

@@ -22,6 +22,7 @@
 #include "mainInt.h"
 #include "bool/dec/dec.h"
 #include "misc/extra/extraBdd.h"
+#include "map/if/if.h"
 
 
 ABC_NAMESPACE_IMPL_START
@@ -59,6 +60,7 @@ void *      Abc_FrameReadLibVer()                            { return s_GlobalFr
 void *      Abc_FrameReadLibScl()                            { return s_GlobalFrame->pLibScl;      } 
 void *      Abc_FrameReadManDd()                             { if ( s_GlobalFrame->dd == NULL )      s_GlobalFrame->dd = Cudd_Init( 0, 0, CUDD_UNIQUE_SLOTS, CUDD_CACHE_SLOTS, 0 );  return s_GlobalFrame->dd;      } 
 void *      Abc_FrameReadManDec()                            { if ( s_GlobalFrame->pManDec == NULL ) s_GlobalFrame->pManDec = Dec_ManStart();                                        return s_GlobalFrame->pManDec; } 
+void *      Abc_FrameReadManDsd()                            { return s_GlobalFrame->pManDsd;      } 
 char *      Abc_FrameReadFlag( char * pFlag )                { return Cmd_FlagReadByName( s_GlobalFrame, pFlag );   } 
 
 int         Abc_FrameReadBmcFrames( Abc_Frame_t * p )        { return s_GlobalFrame->nFrames;      }               
@@ -85,6 +87,7 @@ void        Abc_FrameSetFlag( char * pFlag, char * pValue )  { Cmd_FlagUpdateVal
 void        Abc_FrameSetCex( Abc_Cex_t * pCex )              { ABC_FREE( s_GlobalFrame->pCex ); s_GlobalFrame->pCex = pCex;       }
 void        Abc_FrameSetNFrames( int nFrames )               { ABC_FREE( s_GlobalFrame->pCex ); s_GlobalFrame->nFrames = nFrames; }
 void        Abc_FrameSetStatus( int Status )                 { ABC_FREE( s_GlobalFrame->pCex ); s_GlobalFrame->Status = Status;   }
+void        Abc_FrameSetManDsd( void * pMan )                { if (s_GlobalFrame->pManDsd) If_DsdManFree((If_DsdMan_t *)s_GlobalFrame->pManDsd, 0); s_GlobalFrame->pManDsd = pMan; }
 
 int         Abc_FrameIsBatchMode()                           { return s_GlobalFrame ? s_GlobalFrame->fBatchMode : 0;              } 
 
@@ -194,6 +197,7 @@ void Abc_FrameDeallocate( Abc_Frame_t * p )
     if ( p->pSave2    )  Aig_ManStop( (Aig_Man_t *)p->pSave2 );
     if ( p->pSave3    )  Aig_ManStop( (Aig_Man_t *)p->pSave3 );
     if ( p->pSave4    )  Aig_ManStop( (Aig_Man_t *)p->pSave4 );
+    if ( p->pManDsd   )  If_DsdManFree( (If_DsdMan_t *)p->pManDsd, 0 );
     if ( p->vPlugInComBinPairs ) 
     {
         char * pTemp;

src/base/main/mainInt.h

@@ -82,8 +82,9 @@ struct Abc_Frame_t_
     double          TimeTotal;     // the total runtime of all commands
     // temporary storage for structural choices
     Vec_Ptr_t *     vStore;        // networks to be used by choice
-    // decomposition package
+    // decomposition package    
     void *          pManDec;       // decomposition manager
+    void *          pManDsd;       // decomposition manager
     DdManager *     dd;            // temporary BDD package
     // libraries for mapping
     void *          pLibLut;       // the current LUT library

src/map/if/if.h

@@ -517,12 +517,18 @@ extern int             If_CluCheckExt( void * p, word * pTruth, int nVars, int n
 extern int             If_CluCheckExt3( void * p, word * pTruth, int nVars, int nLutLeaf, int nLutLeaf2, int nLutRoot, 
                            char * pLut0, char * pLut1, char * pLut2, word * pFunc0, word * pFunc1, word * pFunc2 );
 /*=== ifDsd.c =============================================================*/
-extern If_DsdMan_t *   If_DsdManAlloc( int nLutSize );
+extern If_DsdMan_t *   If_DsdManAlloc( int nVars, int nLutSize );
 extern void            If_DsdManDump( If_DsdMan_t * p );
 extern void            If_DsdManPrint( If_DsdMan_t * p, char * pFileName, int fVerbose );
 extern void            If_DsdManFree( If_DsdMan_t * p, int fVerbose );
+extern void            If_DsdManSave( If_DsdMan_t * p, char * pFileName );
+extern If_DsdMan_t *   If_DsdManLoad( char * pFileName );
 extern int             If_DsdManCompute( If_DsdMan_t * p, word * pTruth, int nLeaves, unsigned char * pPerm, char * pLutStruct );
+extern char *          If_DsdManFileName( If_DsdMan_t * p );
+extern int             If_DsdManVarNum( If_DsdMan_t * p );
+extern int             If_DsdManLutSize( If_DsdMan_t * p );
 extern int             If_DsdManCheckDec( If_DsdMan_t * p, int iDsd );
+extern unsigned        If_DsdManCheckXY( If_DsdMan_t * p, int iDsd, int LutSize, int fDerive, int fVerbose );
 /*=== ifLib.c =============================================================*/
 extern If_LibLut_t *   If_LibLutRead( char * FileName );
 extern If_LibLut_t *   If_LibLutDup( If_LibLut_t * p );

src/map/if/ifMan.c

@@ -85,7 +85,6 @@ If_Man_t * If_ManStart( If_Par_t * pPars )
     p->puTempW   = p->pPars->fTruth? ABC_ALLOC( word, p->nTruth6Words ) : NULL;
     if ( pPars->fUseDsd )
     {
-        p->pIfDsdMan = If_DsdManAlloc( pPars->nLutSize );
         p->vTtDsds = Vec_IntAlloc( 1000 );
         Vec_IntPush( p->vTtDsds, 0 );
         Vec_IntPush( p->vTtDsds, 2 );
@@ -142,6 +141,15 @@ void If_ManRestart( If_Man_t * p )
 ***********************************************************************/
 void If_ManStop( If_Man_t * p )
 {
+/*
+    if ( p->pIfDsdMan )
+    {
+        If_DsdMan_t * pNew;
+        If_DsdManSave( p->pIfDsdMan, NULL );
+        pNew = If_DsdManLoad( If_DsdManFileName(p->pIfDsdMan) );
+        If_DsdManFree( pNew, 1 );
+    }
+*/
     {
 //        extern void If_CluHashFindMedian( If_Man_t * p );
 //        extern void If_CluHashTableCheck( If_Man_t * p );
@@ -158,11 +166,13 @@ void If_ManStop( If_Man_t * p )
                 Abc_Print( 1, "Useless cuts %2d  = %9d  (out of %9d)  (%6.2f %%)\n", i, p->nCutsUseless[i], p->nCutsCount[i], 100.0*p->nCutsUseless[i]/(p->nCutsCount[i]+1) );
         Abc_Print( 1, "Useless cuts all = %9d  (out of %9d)  (%6.2f %%)\n", p->nCutsUselessAll, p->nCutsCountAll, 100.0*p->nCutsUselessAll/(p->nCutsCountAll+1) );
     }
-    if ( p->pPars->fVerbose && p->nCuts5 )
-        Abc_Print( 1, "Statistics about 5-cuts: Total = %d  Non-decomposable = %d (%.2f %%)\n", p->nCuts5, p->nCuts5-p->nCuts5a, 100.0*(p->nCuts5-p->nCuts5a)/p->nCuts5 );
-    if ( p->pPars->fUseDsd )
-        If_DsdManFree( p->pIfDsdMan, p->pPars->fVerbose );
-    if ( p->pPars->fUseDsd )
+//    if ( p->pPars->fVerbose && p->nCuts5 )
+//        Abc_Print( 1, "Statistics about 5-cuts: Total = %d  Non-decomposable = %d (%.2f %%)\n", p->nCuts5, p->nCuts5-p->nCuts5a, 100.0*(p->nCuts5-p->nCuts5a)/p->nCuts5 );
+//    if ( p->pPars->fUseDsd )
+//        If_DsdManFree( p->pIfDsdMan, p->pPars->fVerbose );
+    if ( p->pIfDsdMan )
+        p->pIfDsdMan = NULL;
+    if ( p->pPars->fUseDsd && (p->nCountNonDec[0] || p->nCountNonDec[1]) )
         printf( "NonDec0 = %d.  NonDec1 = %d.\n", p->nCountNonDec[0], p->nCountNonDec[1] );
 //    Abc_PrintTime( 1, "Truth", p->timeTruth );
 //    Abc_Print( 1, "Small support = %d.\n", p->nSmallSupp );

src/map/if/ifMap.c

@@ -217,12 +217,39 @@ void If_ObjPerformMappingAnd( If_Man_t * p, If_Obj_t * pObj, int Mode, int fPrep
 //            abctime clk = Abc_Clock();
             If_CutComputeTruth( p, pCut, pCut0, pCut1, pObj->fCompl0, pObj->fCompl1 );
 //            p->timeTruth += Abc_Clock() - clk;
+            if ( p->pPars->fUseDsd )
+            {
+                int truthId = Abc_Lit2Var(pCut->iCutFunc);
+                if ( Vec_IntSize(p->vTtDsds) <= truthId || Vec_IntEntry(p->vTtDsds, truthId) == -1 )
+                {
+                    pCut->iCutDsd = If_DsdManCompute( p->pIfDsdMan, If_CutTruthW(p, pCut), pCut->nLeaves, (unsigned char *)pCut->pPerm, p->pPars->pLutStruct );
+//                    printf( "%d(%d) ", pCut->iCutDsd, If_DsdManCheckDec( p->pIfDsdMan, pCut->iCutDsd ) );
+                    while ( Vec_IntSize(p->vTtDsds) <= truthId )
+                    {
+                        Vec_IntPush( p->vTtDsds, -1 );
+                        for ( v = 0; v < p->pPars->nLutSize; v++ )
+                            Vec_StrPush( p->vTtPerms, IF_BIG_CHAR );
+                    }
+                    Vec_IntWriteEntry( p->vTtDsds, truthId, Abc_LitNotCond(pCut->iCutDsd, Abc_LitIsCompl(pCut->iCutFunc)) );
+                    for ( v = 0; v < (int)pCut->nLeaves; v++ )
+                        Vec_StrWriteEntry( p->vTtPerms, truthId * p->pPars->nLutSize + v, (char)pCut->pPerm[v] );
+                }
+                else
+                {
+                    pCut->iCutDsd = Abc_LitNotCond( Vec_IntEntry(p->vTtDsds, truthId), Abc_LitIsCompl(pCut->iCutFunc) );
+                    for ( v = 0; v < (int)pCut->nLeaves; v++ )
+                        pCut->pPerm[v] = (unsigned char)Vec_StrEntry( p->vTtPerms, truthId * p->pPars->nLutSize + v );
+                }
+            }
             // run user functions
             pCut->fUseless = 0;
             if ( p->pPars->pFuncCell )
             {
                 assert( pCut->nLimit >= 4 && pCut->nLimit <= 16 );
-                pCut->fUseless = !p->pPars->pFuncCell( p, If_CutTruth(p, pCut), pCut->nLimit, pCut->nLeaves, p->pPars->pLutStruct );
+                if ( p->pPars->fUseDsd )
+                    pCut->fUseless = If_DsdManCheckDec( p->pIfDsdMan, pCut->iCutDsd );
+                else
+                    pCut->fUseless = !p->pPars->pFuncCell( p, If_CutTruth(p, pCut), pCut->nLimit, pCut->nLeaves, p->pPars->pLutStruct );
                 p->nCutsUselessAll += pCut->fUseless;
                 p->nCutsUseless[pCut->nLeaves] += pCut->fUseless;
                 p->nCutsCountAll++;
@@ -251,29 +278,9 @@ void If_ObjPerformMappingAnd( If_Man_t * p, If_Obj_t * pObj, int Mode, int fPrep
                         p->nCuts5a++;
                 }
             }
+/*
             if ( p->pPars->fUseDsd )
             {
-                int truthId = Abc_Lit2Var(pCut->iCutFunc);
-                if ( Vec_IntSize(p->vTtDsds) <= truthId || Vec_IntEntry(p->vTtDsds, truthId) == -1 )
-                {
-                    pCut->iCutDsd = If_DsdManCompute( p->pIfDsdMan, If_CutTruthW(p, pCut), pCut->nLeaves, (unsigned char *)pCut->pPerm, p->pPars->pLutStruct );
-//                    printf( "%d(%d) ", pCut->iCutDsd, If_DsdManCheckDec( p->pIfDsdMan, pCut->iCutDsd ) );
-                    while ( Vec_IntSize(p->vTtDsds) <= truthId )
-                    {
-                        Vec_IntPush( p->vTtDsds, -1 );
-                        for ( v = 0; v < p->pPars->nLutSize; v++ )
-                            Vec_StrPush( p->vTtPerms, IF_BIG_CHAR );
-                    }
-                    Vec_IntWriteEntry( p->vTtDsds, truthId, Abc_LitNotCond(pCut->iCutDsd, Abc_LitIsCompl(pCut->iCutFunc)) );
-                    for ( v = 0; v < (int)pCut->nLeaves; v++ )
-                        Vec_StrWriteEntry( p->vTtPerms, truthId * p->pPars->nLutSize + v, (char)pCut->pPerm[v] );
-                }
-                else
-                {
-                    pCut->iCutDsd = Abc_LitNotCond( Vec_IntEntry(p->vTtDsds, truthId), Abc_LitIsCompl(pCut->iCutFunc) );
-                    for ( v = 0; v < (int)pCut->nLeaves; v++ )
-                        pCut->pPerm[v] = (unsigned char)Vec_StrEntry( p->vTtPerms, truthId * p->pPars->nLutSize + v );
-                }
                 if ( p->pPars->pLutStruct )
                 {
                     int Value = If_DsdManCheckDec( p->pIfDsdMan, pCut->iCutDsd );
@@ -283,7 +290,7 @@ void If_ObjPerformMappingAnd( If_Man_t * p, If_Obj_t * pObj, int Mode, int fPrep
                             p->nCountNonDec[0]++;
                         if ( !pCut->fUseless && Value )
                             p->nCountNonDec[1]++; 
-/*
+
 //                        if ( pCut->fUseless && !Value )
 //                            printf( "Old does not work.  New works.\n" );
                         if ( !pCut->fUseless && Value )
@@ -307,14 +314,14 @@ void If_ObjPerformMappingAnd( If_Man_t * p, If_Obj_t * pObj, int Mode, int fPrep
                             z = If_Dec6Perform( t, 1 );
                             If_DecPrintConfig( z );
 
-                            s = If_DsdManCheckXY( p->pIfDsdMan, pCut->iCutDsd, 4, 1 );
+                            s = If_DsdManCheckXY( p->pIfDsdMan, pCut->iCutDsd, 4, 0, 1 );
                             printf( "Confirm %d\n", s );
                             s = 0;
                         }
-*/
                     }
                 }
             }
+*/
         }
         
         // compute the application-specific cost and depth

src/map/if/ifSat.c

@@ -204,46 +204,46 @@ void If_ManSatTest()
     
     uSet = (3 << 0) | (1 << 2) | (1 << 4);
     RetValue = If_ManSatCheckXY( p, nLutSize, pTruth, nVars, uSet, &uBound, &uFree, vLits );
-    printf( "%d", RetValue );
+    printf( "%d (%d)", RetValue, sat_solver_nconflicts(p) );
     uSet = (1 << 0) | (3 << 2) | (1 << 4);
     RetValue = If_ManSatCheckXY( p, nLutSize, pTruth, nVars, uSet, &uBound, &uFree, vLits );
-    printf( "%d", RetValue );
+    printf( "%d (%d)", RetValue, sat_solver_nconflicts(p) );
     uSet = (1 << 0) | (1 << 2) | (3 << 4);
     RetValue = If_ManSatCheckXY( p, nLutSize, pTruth, nVars, uSet, &uBound, &uFree, vLits );
-    printf( "%d", RetValue );
+    printf( "%d (%d)", RetValue, sat_solver_nconflicts(p) );
 
     
     uSet = (3 << 0) | (1 << 2) | (1 << 6);
     RetValue = If_ManSatCheckXY( p, nLutSize, pTruth, nVars, uSet, &uBound, &uFree, vLits );
-    printf( "%d", RetValue );
+    printf( "%d (%d)", RetValue, sat_solver_nconflicts(p) );
     uSet = (1 << 0) | (3 << 2) | (1 << 6);
     RetValue = If_ManSatCheckXY( p, nLutSize, pTruth, nVars, uSet, &uBound, &uFree, vLits );
-    printf( "%d", RetValue );
+    printf( "%d (%d)", RetValue, sat_solver_nconflicts(p) );
     uSet = (1 << 0) | (1 << 2) | (3 << 6);
     RetValue = If_ManSatCheckXY( p, nLutSize, pTruth, nVars, uSet, &uBound, &uFree, vLits );
-    printf( "%d", RetValue );
+    printf( "%d (%d)", RetValue, sat_solver_nconflicts(p) );
 
     
     uSet = (3 << 0) | (1 << 4) | (1 << 6);
     RetValue = If_ManSatCheckXY( p, nLutSize, pTruth, nVars, uSet, &uBound, &uFree, vLits );
-    printf( "%d", RetValue );
+    printf( "%d (%d)", RetValue, sat_solver_nconflicts(p) );
     uSet = (1 << 0) | (3 << 4) | (1 << 6);
     RetValue = If_ManSatCheckXY( p, nLutSize, pTruth, nVars, uSet, &uBound, &uFree, vLits );
-    printf( "%d", RetValue );
+    printf( "%d (%d)", RetValue, sat_solver_nconflicts(p) );
     uSet = (1 << 0) | (1 << 4) | (3 << 6);
     RetValue = If_ManSatCheckXY( p, nLutSize, pTruth, nVars, uSet, &uBound, &uFree, vLits );
-    printf( "%d", RetValue );
+    printf( "%d (%d)", RetValue, sat_solver_nconflicts(p) );
 
     
     uSet = (3 << 2) | (1 << 4) | (1 << 6);
     RetValue = If_ManSatCheckXY( p, nLutSize, pTruth, nVars, uSet, &uBound, &uFree, vLits );
-    printf( "%d", RetValue );
+    printf( "%d (%d)", RetValue, sat_solver_nconflicts(p) );
     uSet = (1 << 2) | (3 << 4) | (1 << 6);
     RetValue = If_ManSatCheckXY( p, nLutSize, pTruth, nVars, uSet, &uBound, &uFree, vLits );
-    printf( "%d", RetValue );
+    printf( "%d (%d)", RetValue, sat_solver_nconflicts(p) );
     uSet = (1 << 2) | (1 << 4) | (3 << 6);
     RetValue = If_ManSatCheckXY( p, nLutSize, pTruth, nVars, uSet, &uBound, &uFree, vLits );
-    printf( "%d", RetValue );
+    printf( "%d (%d)", RetValue, sat_solver_nconflicts(p) );
 
     printf( "\n" );