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Commit 7d82819d by Alan Mishchenko
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Adding visualization of word-level networks Wlc_Ntk_t.

parent 3c8c807a
Showing with 287 additions and 8 deletions
abclib.dsp
......@@ -799,6 +799,10 @@ SOURCE=.\src\base\wlc\wlcReadVer.c
# End Source File
# Begin Source File
SOURCE=.\src\base\wlc\wlcShow.c
# End Source File
# Begin Source File
SOURCE=.\src\base\wlc\wlcSim.c
# End Source File
# Begin Source File
......
src/base/wlc/module.make
......@@ -7,6 +7,7 @@ SRC += src/base/wlc/wlcAbs.c \
src/base/wlc/wlcReadSmt.c \
src/base/wlc/wlcReadVer.c \
src/base/wlc/wlcSim.c \
src/base/wlc/wlcShow.c \
src/base/wlc/wlcStdin.c \
src/base/wlc/wlcWin.c \
src/base/wlc/wlcWriteVer.c
src/base/wlc/wlc.h
......@@ -157,6 +157,7 @@ struct Wlc_Ntk_t_
Vec_Int_t vTravIds; // trav IDs of the objects
Vec_Int_t vCopies; // object first bits
Vec_Int_t vBits; // object mapping into AIG nodes
Vec_Int_t vLevels; // object levels
};
static inline int Wlc_NtkObjNum( Wlc_Ntk_t * p ) { return p->iObj - 1; }
......@@ -206,6 +207,8 @@ static inline int Wlc_ObjSign( Wlc_Obj_t * p )
static inline int * Wlc_ObjConstValue( Wlc_Obj_t * p ) { assert(p->Type == WLC_OBJ_CONST); return Wlc_ObjFanins(p); }
static inline int Wlc_ObjTableId( Wlc_Obj_t * p ) { assert(p->Type == WLC_OBJ_TABLE); return p->Fanins[1]; }
static inline word * Wlc_ObjTable( Wlc_Ntk_t * p, Wlc_Obj_t * pObj ) { return (word *)Vec_PtrEntry( p->vTables, Wlc_ObjTableId(pObj) ); }
static inline int Wlc_ObjLevelId( Wlc_Ntk_t * p, int iObj ) { return Vec_IntEntry( &p->vLevels, iObj ); }
static inline int Wlc_ObjLevel( Wlc_Ntk_t * p, Wlc_Obj_t * pObj ) { return Wlc_ObjLevelId( p, Wlc_ObjId(p, pObj) ); }
static inline void Wlc_NtkCleanCopy( Wlc_Ntk_t * p ) { Vec_IntFill( &p->vCopies, p->nObjsAlloc, 0 ); }
static inline int Wlc_NtkHasCopy( Wlc_Ntk_t * p ) { return Vec_IntSize( &p->vCopies ) > 0; }
......@@ -230,6 +233,8 @@ static inline Wlc_Obj_t * Wlc_ObjFoToFi( Wlc_Ntk_t * p, Wlc_Obj_t * pObj )
#define Wlc_NtkForEachObj( p, pObj, i ) \
for ( i = 1; (i < Wlc_NtkObjNumMax(p)) && (((pObj) = Wlc_NtkObj(p, i)), 1); i++ )
#define Wlc_NtkForEachObjReverse( p, pObj, i ) \
for ( i = Wlc_NtkObjNumMax(p) - 1; (i > 0) && (((pObj) = Wlc_NtkObj(p, i)), 1); i-- )
#define Wlc_NtkForEachObjVec( vVec, p, pObj, i ) \
for ( i = 0; (i < Vec_IntSize(vVec)) && (((pObj) = Wlc_NtkObj(p, Vec_IntEntry(vVec, i))), 1); i++ )
#define Wlc_NtkForEachPi( p, pPi, i ) \
......@@ -266,6 +271,7 @@ extern Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Vec_Int_t * vBoxIds, int i
/*=== wlcCom.c ========================================================*/
extern void Wlc_SetNtk( Abc_Frame_t * pAbc, Wlc_Ntk_t * pNtk );
/*=== wlcNtk.c ========================================================*/
extern char * Wlc_ObjTypeName( Wlc_Obj_t * p );
extern Wlc_Ntk_t * Wlc_NtkAlloc( char * pName, int nObjsAlloc );
extern int Wlc_ObjAlloc( Wlc_Ntk_t * p, int Type, int Signed, int End, int Beg );
extern int Wlc_ObjCreate( Wlc_Ntk_t * p, int Type, int Signed, int End, int Beg, Vec_Int_t * vFanins );
......@@ -275,12 +281,16 @@ extern char * Wlc_ObjName( Wlc_Ntk_t * p, int iObj );
extern void Wlc_ObjUpdateType( Wlc_Ntk_t * p, Wlc_Obj_t * pObj, int Type );
extern void Wlc_ObjAddFanins( Wlc_Ntk_t * p, Wlc_Obj_t * pObj, Vec_Int_t * vFanins );
extern void Wlc_NtkFree( Wlc_Ntk_t * p );
extern int Wlc_NtkCreateLevels( Wlc_Ntk_t * p );
extern int Wlc_NtkCreateLevelsRev( Wlc_Ntk_t * p );
extern void Wlc_NtkPrintNode( Wlc_Ntk_t * p, Wlc_Obj_t * pObj );
extern void Wlc_NtkPrintNodeArray( Wlc_Ntk_t * p, Vec_Int_t * vArray );
extern void Wlc_NtkPrintNodes( Wlc_Ntk_t * p, int Type );
extern void Wlc_NtkPrintStats( Wlc_Ntk_t * p, int fDistrib, int fVerbose );
extern Wlc_Ntk_t * Wlc_NtkDupDfs( Wlc_Ntk_t * p );
extern Wlc_Ntk_t * Wlc_NtkDupDfs( Wlc_Ntk_t * p, int fMarked );
extern void Wlc_NtkTransferNames( Wlc_Ntk_t * pNew, Wlc_Ntk_t * p );
extern void Wlc_NtkCleanMarks( Wlc_Ntk_t * p );
extern void Wlc_NtkMarkCone( Wlc_Ntk_t * p, int iPo );
extern Wlc_Ntk_t * Wlc_NtkDupSingleNodes( Wlc_Ntk_t * p );
/*=== wlcReadSmt.c ========================================================*/
extern Wlc_Ntk_t * Wlc_ReadSmtBuffer( char * pFileName, char * pBuffer, char * pLimit, int fOldParser, int fPrintTree );
......
src/base/wlc/wlcAbs.c
......@@ -173,7 +173,7 @@ Wlc_Ntk_t * Wlc_NtkAbstractNodes( Wlc_Ntk_t * p, Vec_Int_t * vNodesInit )
if ( vNodes != vNodesInit )
Vec_IntFree( vNodes );
// reconstruct topological order
pNew = Wlc_NtkDupDfs( p );
pNew = Wlc_NtkDupDfs( p, 0 );
Wlc_NtkTransferNames( pNew, p );
return pNew;
}
......@@ -278,7 +278,7 @@ Wlc_Ntk_t * Wlc_NtkUifNodePairs( Wlc_Ntk_t * p, Vec_Int_t * vPairsInit )
if ( vPairs != vPairsInit )
Vec_IntFree( vPairs );
// reconstruct topological order
pNew = Wlc_NtkDupDfs( p );
pNew = Wlc_NtkDupDfs( p, 0 );
Wlc_NtkTransferNames( pNew, p );
return pNew;
}
......
src/base/wlc/wlcCom.c
......@@ -31,8 +31,10 @@ ABC_NAMESPACE_IMPL_START
static int Abc_CommandReadWlc ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandWriteWlc ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandPs ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandCone ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandBlast ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandProfile ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandShow ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandTest ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandInvPs ( Abc_Frame_t * pAbc, int argc, char ** argv );
......@@ -68,8 +70,10 @@ void Wlc_Init( Abc_Frame_t * pAbc )
Cmd_CommandAdd( pAbc, "Word level", "%read", Abc_CommandReadWlc, 0 );
Cmd_CommandAdd( pAbc, "Word level", "%write", Abc_CommandWriteWlc, 0 );
Cmd_CommandAdd( pAbc, "Word level", "%ps", Abc_CommandPs, 0 );
Cmd_CommandAdd( pAbc, "Word level", "%cone", Abc_CommandCone, 0 );
Cmd_CommandAdd( pAbc, "Word level", "%blast", Abc_CommandBlast, 0 );
Cmd_CommandAdd( pAbc, "Word level", "%profile", Abc_CommandProfile, 0 );
Cmd_CommandAdd( pAbc, "Word level", "%show", Abc_CommandShow, 0 );
Cmd_CommandAdd( pAbc, "Word level", "%test", Abc_CommandTest, 0 );
Cmd_CommandAdd( pAbc, "Word level", "inv_ps", Abc_CommandInvPs, 0 );
......@@ -343,6 +347,70 @@ usage:
SeeAlso []
******************************************************************************/
int Abc_CommandCone( Abc_Frame_t * pAbc, int argc, char ** argv )
{
Wlc_Ntk_t * pNtk = Wlc_AbcGetNtk(pAbc);
int c, iOutput = -1, fVerbose = 0;
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "Ovh" ) ) != EOF )
{
switch ( c )
{
case 'O':
if ( globalUtilOptind >= argc )
{
Abc_Print( -1, "Command line switch \"-O\" should be followed by an integer.\n" );
goto usage;
}
iOutput = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( iOutput < 0 )
goto usage;
break;
case 'v':
fVerbose ^= 1;
break;
case 'h':
goto usage;
default:
goto usage;
}
}
if ( pNtk == NULL )
{
Abc_Print( 1, "Abc_CommandCone(): There is no current design.\n" );
return 0;
}
if ( iOutput < 0 || iOutput >= Wlc_NtkPoNum(pNtk) )
{
Abc_Print( 1, "Abc_CommandCone(): Illegal output index (%d) (should be 0 <= num < %d).\n", iOutput, Wlc_NtkPoNum(pNtk) );
return 0;
}
printf( "Extracting output %d.\n", iOutput );
Wlc_NtkMarkCone( pNtk, iOutput );
pNtk = Wlc_NtkDupDfs( pNtk, 1 );
Wlc_AbcUpdateNtk( pAbc, pNtk );
return 0;
usage:
Abc_Print( -2, "usage: %%cone [-O num] [-vh]\n" );
Abc_Print( -2, "\t extracts cone of the given word-level output\n" );
Abc_Print( -2, "\t-O num : zero-based index of the word-level output to extract [default = %d]\n", iOutput );
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_CommandBlast( Abc_Frame_t * pAbc, int argc, char ** argv )
{
Wlc_Ntk_t * pNtk = Wlc_AbcGetNtk(pAbc);
......@@ -481,6 +549,54 @@ usage:
return 1;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_CommandShow( Abc_Frame_t * pAbc, int argc, char ** argv )
{
extern void Wlc_NtkShow( Wlc_Ntk_t * p, Vec_Int_t * vBold );
Wlc_Ntk_t * pNtk = Wlc_AbcGetNtk(pAbc);
int c, fVerbose = 0;
// set defaults
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "vh" ) ) != EOF )
{
switch ( c )
{
case 'v':
fVerbose ^= 1;
break;
default:
goto usage;
}
}
if ( pNtk == NULL )
{
Abc_Print( -1, "Empty network.\n" );
return 1;
}
Wlc_NtkShow( pNtk, NULL );
return 0;
usage:
Abc_Print( -2, "usage: %%show [-h]\n" );
Abc_Print( -2, " visualizes the network structure using DOT and GSVIEW\n" );
#ifdef WIN32
Abc_Print( -2, " \"dot.exe\" and \"gsview32.exe\" should be set in the paths\n" );
Abc_Print( -2, " (\"gsview32.exe\" may be in \"C:\\Program Files\\Ghostgum\\gsview\\\")\n" );
#endif
Abc_Print( -2, "\t-h : print the command usage\n");
return 1;
}
/**Function********************************************************************
Synopsis []
......
src/base/wlc/wlcNtk.c
......@@ -88,6 +88,8 @@ static char * Wlc_Names[WLC_OBJ_NUMBER+1] = {
NULL // 54: unused
};
char * Wlc_ObjTypeName( Wlc_Obj_t * p ) { return Wlc_Names[p->Type]; }
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
......@@ -224,6 +226,7 @@ void Wlc_NtkFree( Wlc_Ntk_t * p )
ABC_FREE( p->vValues.pArray );
ABC_FREE( p->vCopies.pArray );
ABC_FREE( p->vBits.pArray );
ABC_FREE( p->vLevels.pArray );
ABC_FREE( p->pInits );
ABC_FREE( p->pObjs );
ABC_FREE( p->pName );
......@@ -246,6 +249,81 @@ int Wlc_NtkMemUsage( Wlc_Ntk_t * p )
/**Function*************************************************************
Synopsis [Assigns object levels.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Wlc_NtkCreateLevels( Wlc_Ntk_t * p )
{
Wlc_Obj_t * pObj;
int i, k, iFanin, Level, LevelMax = 0;
Vec_IntFill( &p->vLevels, Wlc_NtkObjNumMax(p), 0 );
Wlc_NtkForEachObj( p, pObj, i )
{
Level = 0;
Wlc_ObjForEachFanin( pObj, iFanin, k )
Level = Abc_MaxInt( Level, Wlc_ObjLevelId(p, iFanin) + 1 );
Vec_IntWriteEntry( &p->vLevels, i, Level );
LevelMax = Abc_MaxInt( LevelMax, Level );
}
return LevelMax;
}
int Wlc_NtkCreateLevelsRev( Wlc_Ntk_t * p )
{
Wlc_Obj_t * pObj;
int i, k, iFanin, Level, LevelMax = 0;
Vec_IntFill( &p->vLevels, Wlc_NtkObjNumMax(p), 0 );
Wlc_NtkForEachObjReverse( p, pObj, i )
{
if ( Wlc_ObjIsCi(pObj) )
continue;
Level = Wlc_ObjLevel(p, pObj) + 1;
Wlc_ObjForEachFanin( pObj, iFanin, k )
Vec_IntUpdateEntry( &p->vLevels, iFanin, Level );
LevelMax = Abc_MaxInt( LevelMax, Level );
}
// reverse the values
Wlc_NtkForEachObj( p, pObj, i )
Vec_IntWriteEntry( &p->vLevels, i, LevelMax - Wlc_ObjLevelId(p, i) );
Wlc_NtkForEachCi( p, pObj, i )
Vec_IntWriteEntry( &p->vLevels, Wlc_ObjId(p, pObj), 0 );
return LevelMax;
}
/**Function*************************************************************
Synopsis [Collects statistics for each side of the miter.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Wlc_NtkCollectStats( Wlc_Ntk_t * p, int nObjs[2][WLC_OBJ_NUMBER] )
{
Wlc_Obj_t * pObj;
int n, i;
if ( Wlc_NtkPoNum(p) != 2 )
return;
for ( n = 0; n < 2; n++ )
{
Wlc_NtkMarkCone( p, n );
Wlc_NtkForEachObj( p, pObj, i )
if ( pObj->Mark )
nObjs[n][pObj->Type]++;
}
Wlc_NtkCleanMarks( p );
}
/**Function*************************************************************
Synopsis [Prints distribution of operator types.]
Description []
......@@ -300,11 +378,13 @@ void Wlc_NtkPrintDistribSortOne( Vec_Ptr_t * vTypes, Vec_Ptr_t * vOccurs, int Ty
}
void Wlc_NtkPrintDistrib( Wlc_Ntk_t * p, int fVerbose )
{
int nObjs[2][WLC_OBJ_NUMBER] = {{0}}; // counter of objects of each type
Wlc_Obj_t * pObj, * pObjRange = NULL; int nCountRange = 0;
Vec_Ptr_t * vTypes, * vOccurs;
Vec_Int_t * vAnds = Vec_IntStart( WLC_OBJ_NUMBER );
word Sign;
int i, k, s, s0, s1;
Wlc_NtkCollectStats( p, nObjs );
// allocate statistics arrays
vTypes = Vec_PtrStart( WLC_OBJ_NUMBER );
vOccurs = Vec_PtrStart( WLC_OBJ_NUMBER );
......@@ -435,28 +515,40 @@ void Wlc_NtkPrintDistrib( Wlc_Ntk_t * p, int fVerbose )
else if ( pObj->Type == WLC_OBJ_ARI_SQUARE )
Vec_IntAddToEntry( vAnds, WLC_OBJ_ARI_SQUARE, 5 * Wlc_ObjRange(Wlc_ObjFanin0(p, pObj)) * Wlc_ObjRange(Wlc_ObjFanin1(p, pObj)) );
}
if ( nCountRange )
if ( nCountRange && Vec_IntSize(&p->vNameIds) > 0 )
{
printf( "Warning: %d objects of the design have non-zero-based ranges.\n", nCountRange );
printf( "In particular, object %6d with name \"%s\" has range %d=[%d:%d]\n", Wlc_ObjId(p, pObjRange),
Abc_NamStr(p->pManName, Wlc_ObjNameId(p, Wlc_ObjId(p, pObjRange))), Wlc_ObjRange(pObjRange), pObjRange->End, pObjRange->Beg );
}
// print by occurrence
printf( "ID : name occurrence and2 (occurrence)<output_range>=<input_range>.<input_range> ...\n" );
printf( "ID : name occurrence%s and2 (occurrence)<output_range>=<input_range>.<input_range> ...\n", Wlc_NtkPoNum(p) == 2 ? " Left Share Right":"" );
for ( i = 0; i < WLC_OBJ_NUMBER; i++ )
{
Vec_Wrd_t * vType = (Vec_Wrd_t *)Vec_PtrEntry( vTypes, i );
Vec_Wrd_t * vOccur = (Vec_Wrd_t *)Vec_PtrEntry( vOccurs, i );
if ( p->nObjs[i] == 0 )
continue;
printf( "%2d : %-8s %6d%8d ", i, Wlc_Names[i], p->nObjs[i], Vec_IntEntry(vAnds, i) );
printf( "%2d : %-8s %6d", i, Wlc_Names[i], p->nObjs[i] );
if ( Wlc_NtkPoNum(p) == 2 )
{
printf( " " );
printf( "%6d", nObjs[0][i] );
printf( "%6d", nObjs[0][i]+nObjs[1][i]-p->nObjs[i] );
printf( "%6d", nObjs[1][i] );
}
printf( "%8d ", Vec_IntEntry(vAnds, i) );
// sort by occurence
Wlc_NtkPrintDistribSortOne( vTypes, vOccurs, i );
Vec_WrdForEachEntry( vType, Sign, k )
{
Wlc_NtkPrintDistribFromSign( Sign, &s, &s0, &s1 );
if ( ((k % 6) == 5 && s1) || ((k % 8) == 7 && !s1) )
{
printf( "\n " );
if ( Wlc_NtkPoNum(p) == 2 )
printf( " " );
}
printf( "(%d)", (int)Vec_WrdEntry( vOccur, k ) );
printf( "%s%d", Abc_LitIsCompl(s)?"-":"", Abc_Lit2Var(s) );
if ( s0 )
......@@ -623,7 +715,7 @@ void Wlc_NtkDupDfs_rec( Wlc_Ntk_t * pNew, Wlc_Ntk_t * p, int iObj, Vec_Int_t * v
Wlc_NtkDupDfs_rec( pNew, p, iFanin, vFanins );
Wlc_ObjDup( pNew, p, iObj, vFanins );
}
Wlc_Ntk_t * Wlc_NtkDupDfs( Wlc_Ntk_t * p )
Wlc_Ntk_t * Wlc_NtkDupDfs( Wlc_Ntk_t * p, int fMarked )
{
Wlc_Ntk_t * pNew;
Wlc_Obj_t * pObj;
......@@ -634,10 +726,13 @@ Wlc_Ntk_t * Wlc_NtkDupDfs( Wlc_Ntk_t * p )
pNew = Wlc_NtkAlloc( p->pName, p->nObjsAlloc );
pNew->fSmtLib = p->fSmtLib;
Wlc_NtkForEachCi( p, pObj, i )
if ( !fMarked || pObj->Mark )
Wlc_ObjDup( pNew, p, Wlc_ObjId(p, pObj), vFanins );
Wlc_NtkForEachCo( p, pObj, i )
if ( !fMarked || pObj->Mark )
Wlc_NtkDupDfs_rec( pNew, p, Wlc_ObjId(p, pObj), vFanins );
Wlc_NtkForEachCo( p, pObj, i )
if ( !fMarked || pObj->Mark )
Wlc_ObjSetCo( pNew, Wlc_ObjCopyObj(pNew, p, pObj), pObj->fIsFi );
if ( p->vInits )
pNew->vInits = Vec_IntDup( p->vInits );
......@@ -668,6 +763,59 @@ void Wlc_NtkTransferNames( Wlc_Ntk_t * pNew, Wlc_Ntk_t * p )
/**Function*************************************************************
Synopsis [Select the cone of the given output.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Wlc_NtkCleanMarks( Wlc_Ntk_t * p )
{
Wlc_Obj_t * pObj;
int i;
Wlc_NtkForEachObj( p, pObj, i )
pObj->Mark = 0;
}
void Wlc_NtkMarkCone_rec( Wlc_Ntk_t * p, Wlc_Obj_t * pObj, Vec_Int_t * vFlops )
{
int i, iFanin;
if ( pObj->Mark )
return;
pObj->Mark = 1;
if ( Wlc_ObjIsCi(pObj) )
{
if ( !Wlc_ObjIsPi(pObj) )
Vec_IntPush( vFlops, Wlc_ObjCiId(pObj) );
return;
}
Wlc_ObjForEachFanin( pObj, iFanin, i )
Wlc_NtkMarkCone_rec( p, Wlc_NtkObj(p, iFanin), vFlops );
}
void Wlc_NtkMarkCone( Wlc_Ntk_t * p, int iPo )
{
Vec_Int_t * vFlops;
Wlc_Obj_t * pObj;
int i, CiId, CoId;
Wlc_NtkCleanMarks( p );
Wlc_NtkForEachPi( p, pObj, i )
pObj->Mark = 1;
vFlops = Vec_IntAlloc( 100 );
Wlc_NtkForEachPo( p, pObj, i )
if ( i == iPo )
Wlc_NtkMarkCone_rec( p, pObj, vFlops );
Vec_IntForEachEntry( vFlops, CiId, i )
{
CoId = Wlc_NtkPoNum(p) + CiId - Wlc_NtkPiNum(p);
Wlc_NtkMarkCone_rec( p, Wlc_NtkCo(p, CoId), vFlops );
}
Vec_IntFree( vFlops );
}
/**Function*************************************************************
Synopsis [Duplicates the network by copying each node.]
Description []
......
src/base/wlc/wlcReadVer.c
......@@ -1265,7 +1265,7 @@ Wlc_Ntk_t * Wlc_ReadVer( char * pFileName, char * pStr )
if ( !Wlc_PrsDerive( p ) )
goto finish;
// derive topological order
pNtk = Wlc_NtkDupDfs( p->pNtk );
pNtk = Wlc_NtkDupDfs( p->pNtk, 0 );
Wlc_NtkTransferNames( pNtk, p->pNtk );
pNtk->pSpec = Abc_UtilStrsav( pFileName );
finish:
......
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