Skip to content

A
abc
Commit 93aedd2c by Alan Mishchenko
Options

Version abc70115

parent 8dfe4048
Showing with 1672 additions and 14 deletions
Makefile
......@@ -11,7 +11,7 @@ MODULES := src/base/abc src/base/abci src/base/cmd src/base/io src/base/main src
src/bdd/cudd src/bdd/dsd src/bdd/epd src/bdd/mtr src/bdd/parse src/bdd/reo \
src/map/fpga src/map/mapper src/map/mio src/map/super src/map/if \
src/misc/extra src/misc/mvc src/misc/st src/misc/util src/misc/espresso src/misc/nm src/misc/vec src/misc/hash \
src/opt/cut src/opt/dec src/opt/fxu src/opt/rwr src/opt/sim src/opt/ret src/opt/kit \
src/opt/cut src/opt/dec src/opt/fxu src/opt/rwr src/opt/sim src/opt/ret src/opt/res src/opt/kit \
src/sat/asat src/sat/bsat src/sat/csat src/sat/msat src/sat/fraig
default: $(PROG)
......
abc.dsp
......@@ -1653,6 +1653,42 @@ SOURCE=.\src\opt\kit\kitSop.c
SOURCE=.\src\opt\kit\kitTruth.c
# End Source File
# End Group
# Begin Group "res"
# PROP Default_Filter ""
# Begin Source File
SOURCE=.\src\opt\res\res.h
# End Source File
# Begin Source File
SOURCE=.\src\opt\res\resCore.c
# End Source File
# Begin Source File
SOURCE=.\src\opt\res\resFilter.c
# End Source File
# Begin Source File
SOURCE=.\src\opt\res\resSat.c
# End Source File
# Begin Source File
SOURCE=.\src\opt\res\resSim.c
# End Source File
# Begin Source File
SOURCE=.\src\opt\res\resStrash.c
# End Source File
# Begin Source File
SOURCE=.\src\opt\res\resUpdate.c
# End Source File
# Begin Source File
SOURCE=.\src\opt\res\resWin.c
# End Source File
# End Group
# End Group
# Begin Group "map"
......
src/base/abc/abcDfs.c
......@@ -533,7 +533,7 @@ void Abc_NtkNodeSupport_rec( Abc_Obj_t * pNode, Vec_Ptr_t * vNodes )
// mark the node as visited
Abc_NodeSetTravIdCurrent( pNode );
// collect the CI
if ( Abc_ObjIsCi(pNode) )
if ( Abc_ObjIsCi(pNode) || Abc_ObjFaninNum(pNode) == 0 )
{
Vec_PtrPush( vNodes, pNode );
return;
......
src/base/abc/abcFunc.c
......@@ -765,6 +765,65 @@ DdNode * Abc_ConvertAigToBdd( DdManager * dd, Hop_Obj_t * pRoot )
return bFunc;
}
/**Function*************************************************************
Synopsis [Construct BDDs and mark AIG nodes.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_ConvertAigToAig_rec( Abc_Ntk_t * pNtkAig, Hop_Obj_t * pObj )
{
assert( !Hop_IsComplement(pObj) );
if ( !Hop_ObjIsNode(pObj) || Hop_ObjIsMarkA(pObj) )
return;
Abc_ConvertAigToAig_rec( pNtkAig, Hop_ObjFanin0(pObj) );
Abc_ConvertAigToAig_rec( pNtkAig, Hop_ObjFanin1(pObj) );
pObj->pData = Abc_AigAnd( pNtkAig->pManFunc, (Abc_Obj_t *)Hop_ObjChild0Copy(pObj), (Abc_Obj_t *)Hop_ObjChild1Copy(pObj) );
assert( !Hop_ObjIsMarkA(pObj) ); // loop detection
Hop_ObjSetMarkA( pObj );
}
/**Function*************************************************************
Synopsis [Converts the network from AIG to BDD representation.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Abc_Obj_t * Abc_ConvertAigToAig( Abc_Ntk_t * pNtkAig, Abc_Obj_t * pObjOld )
{
Hop_Man_t * pHopMan;
Hop_Obj_t * pRoot;
Abc_Obj_t * pFanin;
int i;
// get the local AIG
pHopMan = pObjOld->pNtk->pManFunc;
pRoot = pObjOld->pData;
// check the case of a constant
if ( Hop_ObjIsConst1( Hop_Regular(pRoot) ) )
return Abc_ObjNotCond( Abc_AigConst1(pNtkAig->pManFunc), Hop_IsComplement(pRoot) );
// assign the fanin nodes
Abc_ObjForEachFanin( pObjOld, pFanin, i )
Hop_ManPi(pHopMan, i)->pData = pFanin->pCopy;
// construct the AIG
Abc_ConvertAigToAig_rec( pNtkAig, Hop_Regular(pRoot) );
Hop_ConeUnmark_rec( Hop_Regular(pRoot) );
// return the result
return Abc_ObjNotCond( Hop_Regular(pRoot)->pData, Hop_IsComplement(pRoot) );
}
/**Function*************************************************************
Synopsis [Unmaps the network.]
......
src/base/abci/abc.c
......@@ -59,6 +59,7 @@ static int Abc_CommandCleanup ( Abc_Frame_t * pAbc, int argc, char ** arg
static int Abc_CommandSweep ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandFastExtract ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandDisjoint ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandMfs ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandRewrite ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandRefactor ( Abc_Frame_t * pAbc, int argc, char ** argv );
......@@ -193,6 +194,7 @@ void Abc_Init( Abc_Frame_t * pAbc )
Cmd_CommandAdd( pAbc, "Synthesis", "sweep", Abc_CommandSweep, 1 );
Cmd_CommandAdd( pAbc, "Synthesis", "fx", Abc_CommandFastExtract, 1 );
Cmd_CommandAdd( pAbc, "Synthesis", "dsd", Abc_CommandDisjoint, 1 );
Cmd_CommandAdd( pAbc, "Synthesis", "mfs", Abc_CommandMfs, 1 );
Cmd_CommandAdd( pAbc, "Synthesis", "rewrite", Abc_CommandRewrite, 1 );
Cmd_CommandAdd( pAbc, "Synthesis", "refactor", Abc_CommandRefactor, 1 );
......@@ -2524,6 +2526,109 @@ usage:
SeeAlso []
***********************************************************************/
int Abc_CommandMfs( Abc_Frame_t * pAbc, int argc, char ** argv )
{
FILE * pOut, * pErr;
Abc_Ntk_t * pNtk;
int c;
int nWindow;
int nSimWords;
int fVerbose;
int fVeryVerbose;
// external functions
extern int Abc_NtkResynthesize( Abc_Ntk_t * pNtk, int nWindow, int nSimWords, int fVerbose, int fVeryVerbose );
pNtk = Abc_FrameReadNtk(pAbc);
pOut = Abc_FrameReadOut(pAbc);
pErr = Abc_FrameReadErr(pAbc);
// set defaults
nWindow = 33;
nSimWords = 8;
fVerbose = 1;
fVeryVerbose = 0;
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "WSvwh" ) ) != EOF )
{
switch ( c )
{
case 'W':
if ( globalUtilOptind >= argc )
{
fprintf( pErr, "Command line switch \"-W\" should be followed by an integer.\n" );
goto usage;
}
nWindow = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( nWindow < 1 || nWindow > 99 )
goto usage;
break;
case 'S':
if ( globalUtilOptind >= argc )
{
fprintf( pErr, "Command line switch \"-S\" should be followed by an integer.\n" );
goto usage;
}
nSimWords = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( nSimWords < 2 || nSimWords > 256 )
goto usage;
break;
case 'v':
fVerbose ^= 1;
break;
case 'w':
fVeryVerbose ^= 1;
break;
case 'h':
goto usage;
default:
goto usage;
}
}
if ( pNtk == NULL )
{
fprintf( pErr, "Empty network.\n" );
return 1;
}
if ( !Abc_NtkHasAig(pNtk) )
{
fprintf( pErr, "This command can only be applied to AIG logic network (run \"aig\").\n" );
return 1;
}
// modify the current network
if ( !Abc_NtkResynthesize( pNtk, nWindow, nSimWords, fVerbose, fVeryVerbose ) )
{
fprintf( pErr, "Resynthesis has failed.\n" );
return 1;
}
return 0;
usage:
fprintf( pErr, "usage: mfs [-W <NM>] [-S <n>] [-vwh]\n" );
fprintf( pErr, "\t performs resubstitution-based resynthesis with don't-cares\n" );
fprintf( pErr, "\t-W <NM> : specifies the windowing paramters (00 < NM <= 99) [default = %d%d]\n", nWindow/10, nWindow%10 );
fprintf( pErr, "\t-S <n> : specifies the number of simulation words (2 <= n <= 256) [default = %d]\n", nSimWords );
fprintf( pErr, "\t-v : toggle verbose printout [default = %s]\n", fVerbose? "yes": "no" );
fprintf( pErr, "\t-w : toggle printout subgraph statistics [default = %s]\n", fVeryVerbose? "yes": "no" );
fprintf( pErr, "\t-h : print the command usage\n");
return 1;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_CommandRewrite( Abc_Frame_t * pAbc, int argc, char ** argv )
{
FILE * pOut, * pErr;
......
src/base/abci/abcIvy.c
......@@ -199,7 +199,7 @@ Abc_Ntk_t * Abc_NtkIvyHaig( Abc_Ntk_t * pNtk, int nIters, int fUseZeroCost, int
// for ( i = 0; i < nIters; i++ )
// Ivy_ManRewriteSeq( pMan, fUseZeroCost, 0 );
Ivy_ManRewriteSeq( pMan, 0, 0 );
Ivy_ManRewriteSeq( pMan, 1, 0 );
// Ivy_ManRewriteSeq( pMan, 1, 0 );
//printf( "Haig size = %d.\n", Ivy_ManNodeNum(pMan->pHaig) );
// Ivy_ManHaigPostprocess( pMan, fVerbose );
//timeRetime = clock() - timeRetime;
......
src/map/if/if.h
......@@ -125,6 +125,7 @@ struct If_Man_t_
float fEpsilon; // epsilon used for comparison
float RequiredGlo; // global required times
float AreaGlo; // global area
int nNets; // the sum total of fanins of all LUTs in the mapping
int nCutsUsed; // the number of cuts currently used
int nCutsMerged; // the total number of cuts merged
unsigned * puTemp[4]; // used for the truth table computation
......
src/map/if/ifMap.c
......@@ -277,8 +277,8 @@ int If_ManPerformMappingRound( If_Man_t * p, int nCutsUsed, int Mode, int fRequi
if ( p->pPars->fVerbose )
{
char Symb = (Mode == 0)? 'D' : ((Mode == 1)? 'F' : 'A');
printf( "%c: Del = %6.2f. Area = %8.2f. Cuts = %8d. Lim = %2d. Ave = %5.2f. ",
Symb, p->RequiredGlo, p->AreaGlo, p->nCutsMerged, p->nCutsUsed, 1.0 * p->nCutsMerged / If_ManAndNum(p) );
printf( "%c: Del = %6.2f. Area = %8.2f. Nets = %6d. Cuts = %8d. Lim = %2d. Ave = %5.2f. ",
Symb, p->RequiredGlo, p->AreaGlo, p->nNets, p->nCutsMerged, p->nCutsUsed, 1.0 * p->nCutsMerged / If_ManAndNum(p) );
PRT( "T", clock() - clk );
// printf( "Max number of cuts = %d. Average number of cuts = %5.2f.\n",
// p->nCutsMax, 1.0 * p->nCutsMerged / If_ManAndNum(p) );
......
src/map/if/ifPrepro.c
......@@ -100,8 +100,8 @@ void If_ManPerformMappingPreprocess( If_Man_t * p )
If_ManComputeRequired( p, 1 );
if ( p->pPars->fVerbose )
{
printf( "S: Del = %6.2f. Area = %8.2f. Cuts = %8d. Lim = %2d. Ave = %5.2f. ",
p->RequiredGlo, p->AreaGlo, p->nCutsMerged, p->nCutsUsed, 1.0 * p->nCutsMerged / If_ManAndNum(p) );
printf( "S: Del = %6.2f. Area = %8.2f. Nets = %6d. Cuts = %8d. Lim = %2d. Ave = %5.2f. ",
p->RequiredGlo, p->AreaGlo, p->nNets, p->nCutsMerged, p->nCutsUsed, 1.0 * p->nCutsMerged / If_ManAndNum(p) );
PRT( "T", clock() - clk );
}
}
......
src/map/if/ifReduce.c
......@@ -55,28 +55,30 @@ void If_ManImproveMapping( If_Man_t * p )
If_ManComputeRequired( p, 0 );
if ( p->pPars->fVerbose )
{
printf( "E: Del = %6.2f. Area = %8.2f. Cuts = %8d. Lim = %2d. Ave = %5.2f. ",
p->RequiredGlo, p->AreaGlo, p->nCutsMerged, p->nCutsUsed, 1.0 * p->nCutsMerged / If_ManAndNum(p) );
printf( "E: Del = %6.2f. Area = %8.2f. Nets = %6d. Cuts = %8d. Lim = %2d. Ave = %5.2f. ",
p->RequiredGlo, p->AreaGlo, p->nNets, p->nCutsMerged, p->nCutsUsed, 1.0 * p->nCutsMerged / If_ManAndNum(p) );
PRT( "T", clock() - clk );
}
/*
clk = clock();
If_ManImproveReduce( p, p->pPars->nLutSize );
If_ManComputeRequired( p, 0 );
if ( p->pPars->fVerbose )
{
printf( "R: Del = %6.2f. Area = %8.2f. Cuts = %8d. Lim = %2d. Ave = %5.2f. ",
p->RequiredGlo, p->AreaGlo, p->nCutsMerged, p->nCutsUsed, 1.0 * p->nCutsMerged / If_ManAndNum(p) );
printf( "R: Del = %6.2f. Area = %8.2f. Nets = %6d. Cuts = %8d. Lim = %2d. Ave = %5.2f. ",
p->RequiredGlo, p->AreaGlo, p->nNets, p->nCutsMerged, p->nCutsUsed, 1.0 * p->nCutsMerged / If_ManAndNum(p) );
PRT( "T", clock() - clk );
}
*/
/*
clk = clock();
If_ManImproveExpand( p, p->pPars->nLutSize );
If_ManComputeRequired( p, 0 );
if ( p->pPars->fVerbose )
{
printf( "E: Del = %6.2f. Area = %8.2f. Cuts = %8d. Lim = %2d. Ave = %5.2f. ",
p->RequiredGlo, p->AreaGlo, p->nCutsMerged, p->nCutsUsed, 1.0 * p->nCutsMerged / If_ManAndNum(p) );
printf( "E: Del = %6.2f. Area = %8.2f. Nets = %6d. Cuts = %8d. Lim = %2d. Ave = %5.2f. ",
p->RequiredGlo, p->AreaGlo, p->nNets, p->nCutsMerged, p->nCutsUsed, 1.0 * p->nCutsMerged / If_ManAndNum(p) );
PRT( "T", clock() - clk );
}
*/
......
src/map/if/ifUtil.c
......@@ -147,6 +147,7 @@ void If_ManComputeRequired( If_Man_t * p, int fFirstTime )
If_Obj_t * pObj;
int i;
// compute area, clean required times, collect nodes used in the mapping
p->nNets = 0;
p->AreaGlo = If_ManScanMapping( p );
// get the global required times
p->RequiredGlo = If_ManDelayMax( p, 0 );
......@@ -206,6 +207,7 @@ float If_ManScanMapping_rec( If_Man_t * p, If_Obj_t * pObj, If_Obj_t ** ppStore
ppStore[pObj->Level] = pObj;
// visit the transitive fanin of the selected cut
pCutBest = If_ObjCutBest(pObj);
p->nNets += pCutBest->nLeaves;
aArea = If_CutLutArea( p, pCutBest );
If_CutForEachLeaf( p, pCutBest, pLeaf, i )
aArea += If_ManScanMapping_rec( p, pLeaf, ppStore );
......
src/misc/vec/vecPtr.h
......@@ -151,6 +151,32 @@ static inline Vec_Ptr_t * Vec_PtrAllocArrayCopy( void ** pArray, int nSize )
/**Function*************************************************************
Synopsis [Allocates the array of simulation info.]
Description [Allocates the array containing given number of entries,
each of which contains given number of unsigned words of simulation data.
The resulting array can be freed using regular procedure Vec_PtrFree().
It is the responsibility of the user to ensure this array is never grown.]
SideEffects []
SeeAlso []
***********************************************************************/
static inline Vec_Ptr_t * Vec_PtrAllocSimInfo( int nEntries, int nWords )
{
void ** pMemory;
unsigned * pInfo;
int i;
pMemory = (void **)ALLOC( char, (sizeof(void *) + sizeof(unsigned) * nWords) * nEntries );
pInfo = (unsigned *)(pMemory + nEntries);
for ( i = 0; i < nEntries; i++ )
pMemory[i] = pInfo + i * nWords;
return Vec_PtrAllocArray( pMemory, nEntries );
}
/**Function*************************************************************
Synopsis [Duplicates the integer array.]
Description []
......
src/misc/vec/vecVec.h
......@@ -61,6 +61,8 @@ struct Vec_Vec_t_
#define Vec_VecForEachEntry( vGlob, pEntry, i, k ) \
for ( i = 0; i < Vec_VecSize(vGlob); i++ ) \
Vec_PtrForEachEntry( Vec_VecEntry(vGlob, i), pEntry, k )
#define Vec_VecForEachEntryLevel( vGlob, pEntry, i, Level ) \
Vec_PtrForEachEntry( Vec_VecEntry(vGlob, Level), pEntry, i )
#define Vec_VecForEachEntryStart( vGlob, pEntry, i, k, LevelStart ) \
for ( i = LevelStart; i < Vec_VecSize(vGlob); i++ ) \
Vec_PtrForEachEntry( Vec_VecEntry(vGlob, i), pEntry, k )
......
src/opt/res/module.make 0 → 100644
SRC += src/opt/res/resCore.c \
src/opt/res/resFilter.c \
src/opt/res/resSat.c \
src/opt/res/resSim.c \
src/opt/res/resStrash.c \
src/opt/res/resUpdate.c \
src/opt/res/resWin.c
src/opt/res/res.h 0 → 100644
/**CFile****************************************************************
FileName [res.h]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Resynthesis package.]
Synopsis [External declarations.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - January 15, 2007.]
Revision [$Id: res.h,v 1.00 2007/01/15 00:00:00 alanmi Exp $]
***********************************************************************/
#ifndef __RES_H__
#define __RES_H__
#ifdef __cplusplus
extern "C" {
#endif
////////////////////////////////////////////////////////////////////////
/// INCLUDES ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// PARAMETERS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// BASIC TYPES ///
////////////////////////////////////////////////////////////////////////
typedef struct Res_Win_t_ Res_Win_t;
struct Res_Win_t_
{
// the general data
int nWinTfiMax; // the fanin levels
int nWinTfoMax; // the fanout levels
int nLevDivMax; // the maximum divisor level
int nLevLeaves; // the level where leaves begin
Abc_Obj_t * pNode; // the node in the center
// the window data
Vec_Vec_t * vLevels; // nodes by level
Vec_Ptr_t * vLeaves; // leaves of the window
Vec_Ptr_t * vRoots; // roots of the window
Vec_Ptr_t * vDivs; // the candidate divisors of the node
};
typedef struct Res_Sim_t_ Res_Sim_t;
struct Res_Sim_t_
{
Abc_Ntk_t * pAig; // AIG for simulation
// simulation parameters
int nWords; // the number of simulation words
int nPats; // the number of patterns
int nWordsOut; // the number of simulation words in the output patterns
int nPatsOut; // the number of patterns in the output patterns
// simulation info
Vec_Ptr_t * vPats; // input simulation patterns
Vec_Ptr_t * vPats0; // input simulation patterns
Vec_Ptr_t * vPats1; // input simulation patterns
Vec_Ptr_t * vOuts; // output simulation info
int nPats0; // the number of 0-patterns accumulated
int nPats1; // the number of 1-patterns accumulated
// resub candidates
Vec_Vec_t * vCands; // resubstitution candidates
};
////////////////////////////////////////////////////////////////////////
/// MACRO DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
/*=== resFilter.c ==========================================================*/
extern Vec_Ptr_t * Res_FilterCandidates( Res_Win_t * pWin, Res_Sim_t * pSim );
/*=== resSat.c ==========================================================*/
extern Hop_Obj_t * Res_SatFindFunction( Hop_Man_t * pMan, Res_Win_t * pWin, Vec_Ptr_t * vFanins, Abc_Ntk_t * pAig );
/*=== resSim.c ==========================================================*/
extern Res_Sim_t * Res_SimAlloc( int nWords );
extern void Res_SimFree( Res_Sim_t * p );
extern int Res_SimPrepare( Res_Sim_t * p, Abc_Ntk_t * pAig );
/*=== resStrash.c ==========================================================*/
extern Abc_Ntk_t * Res_WndStrash( Res_Win_t * p );
/*=== resWnd.c ==========================================================*/
extern void Res_UpdateNetwork( Abc_Obj_t * pObj, Vec_Ptr_t * vFanins, Hop_Obj_t * pFunc );
/*=== resWnd.c ==========================================================*/
extern Res_Win_t * Res_WinAlloc();
extern void Res_WinFree( Res_Win_t * p );
extern int Res_WinCompute( Abc_Obj_t * pNode, int nWinTfiMax, int nWinTfoMax, int nLevDivMax, Res_Win_t * p );
extern void Res_WinVisitNodeTfo( Res_Win_t * p );
#ifdef __cplusplus
}
#endif
#endif
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
src/opt/res/resCore.c 0 → 100644
/**CFile****************************************************************
FileName [resCore.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Resynthesis package.]
Synopsis [Top-level resynthesis procedure.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: resCore.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "abc.h"
#include "res.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Entrace into the resynthesis package.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_NtkResynthesize( Abc_Ntk_t * pNtk, int nWindow, int nSimWords, int fVerbose, int fVeryVerbose )
{
Res_Win_t * pWin;
Res_Sim_t * pSim;
Abc_Ntk_t * pAig;
Abc_Obj_t * pObj;
Hop_Obj_t * pFunc;
Vec_Ptr_t * vFanins;
int i, nNodesOld;
assert( Abc_NtkHasAig(pNtk) );
assert( nWindow > 0 && nWindow < 100 );
// start the window
pWin = Res_WinAlloc();
pSim = Res_SimAlloc( nSimWords );
// set the number of levels
Abc_NtkLevel( pNtk );
// try resynthesizing nodes in the topological order
nNodesOld = Abc_NtkObjNumMax(pNtk);
Abc_NtkForEachObj( pNtk, pObj, i )
{
if ( !Abc_ObjIsNode(pObj) )
continue;
if ( pObj->Id > nNodesOld )
break;
// create the window for this node
if ( !Res_WinCompute(pObj, nWindow/10, nWindow%10, pObj->Level - 1, pWin) )
continue;
// create the AIG for the window
pAig = Res_WndStrash( pWin );
// prepare simulation info
if ( !Res_SimPrepare( pSim, pAig ) )
{
Abc_NtkDelete( pAig );
continue;
}
// find resub candidates for the node
vFanins = Res_FilterCandidates( pWin, pSim );
// check using SAT
pFunc = Res_SatFindFunction( pNtk->pManFunc, pWin, vFanins, pAig );
Abc_NtkDelete( pAig );
if ( pFunc == NULL )
continue;
// update the network
Res_UpdateNetwork( pObj, vFanins, pFunc );
}
Res_WinFree( pWin );
Res_SimFree( pSim );
// check the resulting network
if ( !Abc_NtkCheck( pNtk ) )
{
fprintf( stdout, "Abc_NtkResynthesize(): Network check has failed.\n" );
return 0;
}
return 1;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
src/opt/res/resFilter.c 0 → 100644
/**CFile****************************************************************
FileName [resFilter.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Resynthesis package.]
Synopsis []
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - January 15, 2007.]
Revision [$Id: resFilter.c,v 1.00 2007/01/15 00:00:00 alanmi Exp $]
***********************************************************************/
#include "abc.h"
#include "res.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Vec_Ptr_t * Res_FilterCandidates( Res_Win_t * pWin, Res_Sim_t * pSim )
{
return NULL;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
src/opt/res/resSat.c 0 → 100644
/**CFile****************************************************************
FileName [resSat.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Resynthesis package.]
Synopsis [Interface with the SAT solver.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - January 15, 2007.]
Revision [$Id: resSat.c,v 1.00 2007/01/15 00:00:00 alanmi Exp $]
***********************************************************************/
#include "abc.h"
#include "res.h"
#include "hop.h"
//#include "bf.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Hop_Obj_t * Res_SatFindFunction( Hop_Man_t * pMan, Res_Win_t * pWin, Vec_Ptr_t * vFanins, Abc_Ntk_t * pAig )
{
return NULL;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
src/opt/res/resSim.c 0 → 100644
/**CFile****************************************************************
FileName [resSim.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Resynthesis package.]
Synopsis [Simulation engine.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - January 15, 2007.]
Revision [$Id: resSim.c,v 1.00 2007/01/15 00:00:00 alanmi Exp $]
***********************************************************************/
#include "abc.h"
#include "res.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
// generating random unsigned (#define RAND_MAX 0x7fff)
#define SIM_RANDOM_UNSIGNED ((((unsigned)rand()) << 24) ^ (((unsigned)rand()) << 12) ^ ((unsigned)rand()))
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Allocate simulation engine.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Res_Sim_t * Res_SimAlloc( int nWords )
{
Res_Sim_t * p;
p = ALLOC( Res_Sim_t, 1 );
memset( p, 0, sizeof(Res_Sim_t) );
// simulation info
p->nWords = nWords;
p->nPats = 8 * sizeof(unsigned) * p->nWords;
p->nWordsOut = p->nPats * p->nWords;
p->nPatsOut = p->nPats * p->nPats;
// resub candidates
p->vPats = Vec_PtrAllocSimInfo( 1024, p->nWords );
p->vPats0 = Vec_PtrAllocSimInfo( 128, p->nWords );
p->vPats1 = Vec_PtrAllocSimInfo( 128, p->nWords );
p->vOuts = Vec_PtrAllocSimInfo( 128, p->nWordsOut );
p->vCands = Vec_VecStart( 16 );
// set siminfo for the constant node
memset( Vec_PtrEntry(p->vPats,0), 0xff, sizeof(unsigned) * p->nWords );
return p;
}
/**Function*************************************************************
Synopsis [Allocate simulation engine.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_SimAdjust( Res_Sim_t * p, Abc_Ntk_t * pAig )
{
assert( Abc_NtkIsStrash(pAig) );
p->pAig = pAig;
if ( Vec_PtrSize(p->vPats) < Abc_NtkObjNumMax(pAig)+1 )
{
Vec_PtrFree( p->vPats );
p->vPats = Vec_PtrAllocSimInfo( Abc_NtkObjNumMax(pAig)+1, p->nWords );
}
if ( Vec_PtrSize(p->vPats0) < Abc_NtkPiNum(pAig) )
{
Vec_PtrFree( p->vPats0 );
p->vPats0 = Vec_PtrAllocSimInfo( Abc_NtkPiNum(pAig), p->nWords );
}
if ( Vec_PtrSize(p->vPats1) < Abc_NtkPiNum(pAig) )
{
Vec_PtrFree( p->vPats1 );
p->vPats1 = Vec_PtrAllocSimInfo( Abc_NtkPiNum(pAig), p->nWords );
}
if ( Vec_PtrSize(p->vOuts) < Abc_NtkPoNum(pAig) )
{
Vec_PtrFree( p->vOuts );
p->vOuts = Vec_PtrAllocSimInfo( Abc_NtkPoNum(pAig), p->nWordsOut );
}
// clean storage info for patterns
memset( Vec_PtrEntry(p->vPats0,0), 0, sizeof(unsigned) * p->nWords * Abc_NtkPiNum(pAig) );
memset( Vec_PtrEntry(p->vPats1,0), 0, sizeof(unsigned) * p->nWords * Abc_NtkPiNum(pAig) );
p->nPats0 = 0;
p->nPats1 = 0;
}
/**Function*************************************************************
Synopsis [Free simulation engine.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_SimFree( Res_Sim_t * p )
{
Vec_PtrFree( p->vPats );
Vec_PtrFree( p->vPats0 );
Vec_PtrFree( p->vPats1 );
Vec_PtrFree( p->vOuts );
Vec_VecFree( p->vCands );
free( p );
}
/**Function*************************************************************
Synopsis [Sets random PI simulation info.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_SimSetRandom( Res_Sim_t * p )
{
Abc_Obj_t * pObj;
unsigned * pInfo;
int i, w;
Abc_NtkForEachPi( p->pAig, pObj, i )
{
pInfo = Vec_PtrEntry( p->vPats, pObj->Id );
for ( w = 0; w < p->nWords; w++ )
pInfo[w] = SIM_RANDOM_UNSIGNED;
}
}
/**Function*************************************************************
Synopsis [Sets given PI simulation info.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_SimSetGiven( Res_Sim_t * p, Vec_Ptr_t * vInfo )
{
Abc_Obj_t * pObj;
unsigned * pInfo, * pInfo2;
int i, w;
Abc_NtkForEachPi( p->pAig, pObj, i )
{
pInfo = Vec_PtrEntry( p->vPats, pObj->Id );
pInfo2 = Vec_PtrEntry( vInfo, i );
for ( w = 0; w < p->nWords; w++ )
pInfo[w] = pInfo2[w];
}
}
/**Function*************************************************************
Synopsis [Simulates one node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_SimPerformOne( Abc_Obj_t * pNode, Vec_Ptr_t * vSimInfo, int nSimWords )
{
unsigned * pInfo, * pInfo1, * pInfo2;
int k, fComp1, fComp2;
// simulate the internal nodes
assert( Abc_ObjIsNode(pNode) );
pInfo = Vec_PtrEntry(vSimInfo, pNode->Id);
pInfo1 = Vec_PtrEntry(vSimInfo, Abc_ObjFaninId0(pNode));
pInfo2 = Vec_PtrEntry(vSimInfo, Abc_ObjFaninId1(pNode));
fComp1 = Abc_ObjFaninC0(pNode);
fComp2 = Abc_ObjFaninC1(pNode);
if ( fComp1 && fComp2 )
for ( k = 0; k < nSimWords; k++ )
pInfo[k] = ~pInfo1[k] & ~pInfo2[k];
else if ( fComp1 && !fComp2 )
for ( k = 0; k < nSimWords; k++ )
pInfo[k] = ~pInfo1[k] & pInfo2[k];
else if ( !fComp1 && fComp2 )
for ( k = 0; k < nSimWords; k++ )
pInfo[k] = pInfo1[k] & ~pInfo2[k];
else // if ( fComp1 && fComp2 )
for ( k = 0; k < nSimWords; k++ )
pInfo[k] = pInfo1[k] & pInfo2[k];
}
/**Function*************************************************************
Synopsis [Simulates one PO node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_SimTransferOne( Abc_Obj_t * pNode, Vec_Ptr_t * vSimInfo, int nSimWords )
{
unsigned * pInfo, * pInfo1;
int k, fComp1;
// simulate the internal nodes
assert( Abc_ObjIsCo(pNode) );
pInfo = Vec_PtrEntry(vSimInfo, pNode->Id);
pInfo1 = Vec_PtrEntry(vSimInfo, Abc_ObjFaninId0(pNode));
fComp1 = Abc_ObjFaninC0(pNode);
if ( fComp1 )
for ( k = 0; k < nSimWords; k++ )
pInfo[k] = ~pInfo1[k];
else
for ( k = 0; k < nSimWords; k++ )
pInfo[k] = pInfo1[k];
}
/**Function*************************************************************
Synopsis [Performs one round of simulation.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_SimPerformRound( Res_Sim_t * p )
{
Abc_Obj_t * pObj;
int i;
Abc_AigForEachAnd( p->pAig, pObj, i )
Res_SimPerformOne( pObj, p->vPats, p->nWords );
Abc_NtkForEachPo( p->pAig, pObj, i )
Res_SimTransferOne( pObj, p->vPats, p->nWords );
}
/**Function*************************************************************
Synopsis [Processes simulation patterns.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_SimProcessPats( Res_Sim_t * p )
{
Abc_Obj_t * pCare, * pNode, * pObj;
unsigned * pInfoCare, * pInfoNode;
int i, j;
pCare = Abc_NtkPo( p->pAig, 0 );
pNode = Abc_NtkPo( p->pAig, 0 );
pInfoCare = Vec_PtrEntry( p->vPats, pCare->Id );
pInfoNode = Vec_PtrEntry( p->vPats, pNode->Id );
for ( i = 0; i < p->nPats; i++ )
{
if ( !Abc_InfoHasBit(pInfoCare, i) )
continue;
if ( !Abc_InfoHasBit(pInfoNode, i) )
{
if ( p->nPats0 < p->nPats )
{
Abc_NtkForEachPi( p->pAig, pObj, j )
if ( Abc_InfoHasBit( Vec_PtrEntry(p->vPats, pObj->Id), i ) )
Abc_InfoSetBit( Vec_PtrEntry(p->vPats0, j), p->nPats0 );
p->nPats0++;
}
}
else
{
if ( p->nPats1 < p->nPats )
{
Abc_NtkForEachPi( p->pAig, pObj, j )
if ( Abc_InfoHasBit( Vec_PtrEntry(p->vPats, pObj->Id), i ) )
Abc_InfoSetBit( Vec_PtrEntry(p->vPats1, j), p->nPats1 );
p->nPats1++;
}
}
}
}
/**Function*************************************************************
Synopsis [Duplicates the simulation info to fill the space.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_SimPadSimInfo( Vec_Ptr_t * vPats, int nPats, int nWords )
{
unsigned * pInfo;
int i, w, iWords;
iWords = nPats / (8 * sizeof(unsigned));
if ( iWords == nWords )
return;
Vec_PtrForEachEntry( vPats, pInfo, i )
for ( w = iWords; w < nWords; i++ )
pInfo[w] = pInfo[0];
}
/**Function*************************************************************
Synopsis [Duplicates the simulation info to fill the space.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_SimDeriveInfoDuplicate( Res_Sim_t * p )
{
unsigned * pInfo, * pInfo2;
Abc_Obj_t * pObj;
int i, j, w;
Abc_NtkForEachPo( p->pAig, pObj, i )
{
pInfo = Vec_PtrEntry( p->vPats, pObj->Id );
pInfo2 = Vec_PtrEntry( p->vOuts, i );
for ( j = 0; j < p->nPats; j++ )
for ( w = 0; w < p->nWords; w++ )
*pInfo2++ = pInfo[w];
}
}
/**Function*************************************************************
Synopsis [Complement the simulation info if necessary.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_SimDeriveInfoComplement( Res_Sim_t * p )
{
unsigned * pInfo, * pInfo2;
Abc_Obj_t * pObj;
int i, j, w;
Abc_NtkForEachPo( p->pAig, pObj, i )
{
pInfo = Vec_PtrEntry( p->vPats, pObj->Id );
pInfo2 = Vec_PtrEntry( p->vOuts, i );
for ( j = 0; j < p->nPats; j++, pInfo2 += p->nWords )
if ( Abc_InfoHasBit( pInfo, j ) )
for ( w = 0; w < p->nWords; w++ )
pInfo2[w] = ~pInfo2[w];
}
}
/**Function*************************************************************
Synopsis [Prepares simulation info for candidate filtering.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Res_SimPrepare( Res_Sim_t * p, Abc_Ntk_t * pAig )
{
int Limit = 20;
// prepare the manager
Res_SimAdjust( p, pAig );
// collect 0/1 simulation info
while ( p->nPats0 < p->nPats || p->nPats1 < p->nPats || Limit-- == 0 )
{
Res_SimSetRandom( p );
Res_SimPerformRound( p );
Res_SimProcessPats( p );
}
if ( p->nPats0 < 32 || p->nPats1 < 32 )
return 0;
// create bit-matrix info
if ( p->nPats0 < p->nPats )
Res_SimPadSimInfo( p->vPats0, p->nPats0, p->nWords );
if ( p->nPats1 < p->nPats )
Res_SimPadSimInfo( p->vPats1, p->nPats1, p->nWords );
// resimulate 0-patterns
Res_SimSetGiven( p, p->vPats0 );
Res_SimPerformRound( p );
Res_SimDeriveInfoDuplicate( p );
// resimulate 1-patterns
Res_SimSetGiven( p, p->vPats1 );
Res_SimPerformRound( p );
Res_SimDeriveInfoComplement( p );
return 1;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
src/opt/res/resStrash.c 0 → 100644
/**CFile****************************************************************
FileName [resStrash.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Resynthesis package.]
Synopsis [Strashes the window.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - January 15, 2007.]
Revision [$Id: resStrash.c,v 1.00 2007/01/15 00:00:00 alanmi Exp $]
***********************************************************************/
#include "abc.h"
#include "res.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
extern Abc_Obj_t * Abc_ConvertAigToAig( Abc_Ntk_t * pAig, Abc_Obj_t * pObjOld );
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Structurally hashes the given window.]
Description [The first PO is the observability condition. The second
is the node's function. The remaining POs are the candidate divisors.]
SideEffects []
SeeAlso []
***********************************************************************/
Abc_Ntk_t * Res_WndStrash( Res_Win_t * p )
{
Vec_Ptr_t * vPairs;
Abc_Ntk_t * pAig;
Abc_Obj_t * pObj, * pMiter;
int i, k;
assert( Abc_NtkHasAig(p->pNode->pNtk) );
// create the network
pAig = Abc_NtkAlloc( ABC_NTK_STRASH, ABC_FUNC_AIG, 1 );
// duplicate the name and the spec
pAig->pName = Extra_UtilStrsav( "window" );
// create the inputs
Vec_PtrForEachEntry( p->vLeaves, pObj, i )
pObj->pCopy = Abc_NtkCreatePi( pAig );
// go through the nodes in the topological order
Vec_VecForEachEntryStartStop( p->vLevels, pObj, i, k, p->nLevLeaves + 1, (int)p->pNode->Level + p->nWinTfoMax )
{
pObj->pCopy = Abc_ConvertAigToAig( pAig, pObj );
pObj->pCopy = Abc_ObjNotCond( pObj->pCopy, pObj == p->pNode );
}
// collect the PO outputs
vPairs = Vec_PtrAlloc( 2 * Vec_PtrSize(p->vRoots) );
Vec_PtrForEachEntry( p->vRoots, pObj, i )
{
Vec_PtrPush( vPairs, pObj->pCopy );
Vec_PtrPush( vPairs, NULL );
}
// mark the TFO of the node
Res_WinVisitNodeTfo( p );
// redo strashing in the TFO
p->pNode->pCopy = Abc_ObjNot( p->pNode->pCopy );
Vec_VecForEachEntryStartStop( p->vLevels, pObj, i, k, p->pNode->Level + 1, (int)p->pNode->Level + p->nWinTfoMax )
{
if ( Abc_NodeIsTravIdCurrent(pObj) )
pObj->pCopy = Abc_ConvertAigToAig( pAig, pObj );
}
// collect the PO outputs
Vec_PtrForEachEntry( p->vRoots, pObj, i )
Vec_PtrWriteEntry( vPairs, 2 * i + 1, pObj->pCopy );
// add the miter
pMiter = Abc_AigMiter( pAig->pManFunc, vPairs );
Abc_ObjAddFanin( Abc_NtkCreatePo(pAig), pMiter );
Vec_PtrFree( vPairs );
// add the node
Abc_ObjAddFanin( Abc_NtkCreatePo(pAig), p->pNode->pCopy );
// add the divisors
Vec_PtrForEachEntry( p->vDivs, pObj, i )
Abc_ObjAddFanin( Abc_NtkCreatePo(pAig), pObj->pCopy );
// check the resulting network
if ( !Abc_NtkCheck( pAig ) )
fprintf( stdout, "Res_WndStrash(): Network check has failed.\n" );
return pAig;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
src/opt/res/resUpdate.c 0 → 100644
/**CFile****************************************************************
FileName [resUpdate.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Resynthesis package.]
Synopsis [Updates the network after changes.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - January 15, 2007.]
Revision [$Id: resUpdate.c,v 1.00 2007/01/15 00:00:00 alanmi Exp $]
***********************************************************************/
#include "abc.h"
#include "res.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_UpdateNetwork( Abc_Obj_t * pObj, Vec_Ptr_t * vFanins, Hop_Obj_t * pFunc )
{
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
src/opt/res/resWin.c 0 → 100644
/**CFile****************************************************************
FileName [resWin.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Resynthesis package.]
Synopsis [Windowing algorithm.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - January 15, 2007.]
Revision [$Id: resWin.c,v 1.00 2007/01/15 00:00:00 alanmi Exp $]
***********************************************************************/
#include "abc.h"
#include "res.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Allocates the window.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Res_Win_t * Res_WinAlloc()
{
Res_Win_t * p;
p = ALLOC( Res_Win_t, 1 );
memset( p, 0, sizeof(Res_Win_t) );
p->vLevels = Vec_VecStart( 128 );
p->vLeaves = Vec_PtrAlloc( 512 );
p->vRoots = Vec_PtrAlloc( 512 );
p->vDivs = Vec_PtrAlloc( 512 );
return p;
}
/**Function*************************************************************
Synopsis [Frees the window.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_WinFree( Res_Win_t * p )
{
Vec_VecFree( p->vLevels );
Vec_PtrFree( p->vLeaves );
Vec_PtrFree( p->vRoots );
Vec_PtrFree( p->vDivs );
free( p );
}
/**Function*************************************************************
Synopsis [Adds one node to the window.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline void Res_WinAddNode( Res_Win_t * p, Abc_Obj_t * pObj )
{
assert( !pObj->fMarkA );
pObj->fMarkA = 1;
Vec_VecPush( p->vLevels, pObj->Level, pObj );
}
/**Function*************************************************************
Synopsis [Expands the frontier by one level.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_WinCollectTfiOne( Res_Win_t * p, int Level )
{
Vec_Ptr_t * vFront;
Abc_Obj_t * pObj, * pFanin;
int i, k;
assert( Level > 0 );
vFront = Vec_VecEntry( p->vLevels, Level );
Vec_PtrForEachEntry( vFront, pObj, i )
{
Abc_ObjForEachFanin( pObj, pFanin, k )
{
if ( !pFanin->fMarkA )
Res_WinAddNode( p, pFanin );
}
}
}
/**Function*************************************************************
Synopsis [Collects nodes in the limited TFI of the node.]
Description [Marks the collected nodes with the current trav ID.]
SideEffects []
SeeAlso []
***********************************************************************/
void Res_WinCollectTfi( Res_Win_t * p )
{
int i;
// expand storage for levels
if ( Vec_VecSize( p->vLevels ) <= (int)p->pNode->Level + p->nWinTfoMax )
Vec_VecExpand( p->vLevels, (int)p->pNode->Level + p->nWinTfoMax );
// start the frontier
Vec_VecClear( p->vLevels );
Res_WinAddNode( p, p->pNode );
// add one level at a time
for ( i = p->pNode->Level; i > p->nLevLeaves; i-- )
Res_WinCollectTfiOne( p, i );
}
/**Function*************************************************************
Synopsis [Marks the TFO of the collected nodes up to the given level.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_WinSweepTfo_rec( Abc_Obj_t * pObj, int nLevelLimit, Abc_Obj_t * pNode )
{
Abc_Obj_t * pFanout;
int i;
if ( Abc_ObjIsCo(pObj) || (int)pObj->Level > nLevelLimit || pObj == pNode )
return;
if ( Abc_NodeIsTravIdCurrent(pObj) )
return;
Abc_NodeSetTravIdCurrent( pObj );
Abc_ObjForEachFanout( pObj, pFanout, i )
Res_WinSweepTfo_rec( pFanout, nLevelLimit, pNode );
}
/**Function*************************************************************
Synopsis [Marks the TFO of the collected nodes up to the given level.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_WinSweepTfo( Res_Win_t * p )
{
Abc_Obj_t * pObj;
int i, k;
Abc_NtkIncrementTravId( p->pNode->pNtk );
Vec_VecForEachEntryStartStop( p->vLevels, pObj, i, k, 0, p->nLevLeaves )
Res_WinSweepTfo_rec( pObj, p->pNode->Level + p->nWinTfoMax, p->pNode );
}
/**Function*************************************************************
Synopsis [Recursively collects the roots.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_WinCollectRoots_rec( Abc_Obj_t * pObj, Vec_Ptr_t * vRoots )
{
Abc_Obj_t * pFanout;
int i;
assert( Abc_ObjIsNode(pObj) );
assert( Abc_NodeIsTravIdCurrent(pObj) );
// check if the node has all fanouts marked
Abc_ObjForEachFanout( pObj, pFanout, i )
if ( !Abc_NodeIsTravIdCurrent(pObj) )
break;
// if some of the fanouts are unmarked, add the node to the root
if ( i < Abc_ObjFanoutNum(pObj) )
{
Vec_PtrPush( vRoots, pObj );
return;
}
// otherwise, call recursively
Abc_ObjForEachFanout( pObj, pFanout, i )
Res_WinCollectRoots_rec( pFanout, vRoots );
}
/**Function*************************************************************
Synopsis [Collects the roots of the window.]
Description [Roots of the window are the nodes that have at least
one fanout that it not in the TFO of the leaves.]
SideEffects []
SeeAlso []
***********************************************************************/
void Res_WinCollectRoots( Res_Win_t * p )
{
Vec_PtrClear( p->vRoots );
Res_WinCollectRoots_rec( p->pNode, p->vRoots );
}
/**Function*************************************************************
Synopsis [Recursively augments the window.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_WinAddMissing_rec( Res_Win_t * p, Abc_Obj_t * pObj )
{
Abc_Obj_t * pFanin;
int i;
if ( !Abc_NodeIsTravIdCurrent(pObj) )
return;
if ( pObj->fMarkA )
return;
Res_WinAddNode( p, pObj );
// visit the fanins of the node
Abc_ObjForEachFanin( pObj, pFanin, i )
Res_WinAddMissing_rec( p, pObj );
}
/**Function*************************************************************
Synopsis [Adds to the window visited nodes in the TFI of the roots.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_WinAddMissing( Res_Win_t * p )
{
Abc_Obj_t * pObj;
int i;
Vec_PtrForEachEntry( p->vRoots, pObj, i )
Res_WinAddMissing_rec( p, pObj );
}
/**Function*************************************************************
Synopsis [Collect all the nodes that fanin into the window nodes.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_WinCollectLeaves( Res_Win_t * p )
{
Abc_Obj_t * pObj, * pFanin;
int i, k, f;
// add the leaves
Vec_PtrClear( p->vLeaves );
// collect the nodes below the given level
Vec_VecForEachEntryStartStop( p->vLevels, pObj, i, k, 0, p->nLevLeaves )
Vec_PtrPush( p->vLeaves, pObj );
// add to leaves the fanins of the nodes above the given level
Vec_VecForEachEntryStart( p->vLevels, pObj, i, k, p->nLevLeaves + 1 )
{
Abc_ObjForEachFanin( pObj, pFanin, f )
{
if ( !pFanin->fMarkA )
{
pFanin->fMarkA = 1;
Vec_PtrPush( p->vLeaves, pFanin );
}
}
}
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_WinVisitNodeTfo( Res_Win_t * p )
{
// mark the TFO of the node
Abc_NtkIncrementTravId( p->pNode->pNtk );
Res_WinSweepTfo_rec( p->pNode, p->nLevDivMax, NULL );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_WinCollectDivisors( Res_Win_t * p )
{
Abc_Obj_t * pObj, * pFanout, * pFanin;
int i, k, f, m;
// mark the TFO of the node
Res_WinVisitNodeTfo( p );
// go through all the legal levels and check if their fanouts can be divisors
Vec_VecForEachEntryStartStop( p->vLevels, pObj, i, k, 0, p->nLevDivMax - 1 )
{
Abc_ObjForEachFanout( pObj, pFanout, f )
{
// skip COs
if ( !Abc_ObjIsNode(pFanout) )
continue;
// skip nodes in the TFO of node
if ( Abc_NodeIsTravIdCurrent(pFanout) )
continue;
// skip nodes that are already added
if ( pFanout->fMarkA )
continue;
// skip nodes with large level
if ( (int)pFanout->Level > p->nLevDivMax )
continue;
// skip nodes whose fanins are not in the cone
Abc_ObjForEachFanin( pFanout, pFanin, m )
if ( !pFanin->fMarkA )
break;
if ( m < Abc_ObjFaninNum(pFanin) )
continue;
// add the node
Res_WinAddNode( p, pFanout );
}
}
// collect the divisors below the line
Vec_PtrClear( p->vDivs );
Vec_VecForEachEntryStartStop( p->vLevels, pObj, i, k, 0, p->nLevDivMax )
Vec_PtrPush( p->vDivs, pObj );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Res_WinUnmark( Res_Win_t * p )
{
Vec_Ptr_t * vLevel;
Abc_Obj_t * pObj;
int i, k;
Vec_VecForEachEntry( p->vLevels, pObj, i, k )
pObj->fMarkA = 0;
Vec_PtrForEachEntry( p->vLeaves, pObj, i )
pObj->fMarkA = 0;
// remove leaves from the set
Vec_VecForEachLevelStartStop( p->vLevels, vLevel, i, 0, p->nLevLeaves )
Vec_PtrClear( vLevel );
}
/**Function*************************************************************
Synopsis [Computes the window.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Res_WinCompute( Abc_Obj_t * pNode, int nWinTfiMax, int nWinTfoMax, int nLevDivMax, Res_Win_t * p )
{
assert( Abc_ObjIsNode(pNode) );
assert( nWinTfiMax > 0 && nWinTfoMax > 0 );
// initialize the window
p->pNode = pNode;
p->nWinTfiMax = nWinTfiMax;
p->nWinTfoMax = nWinTfoMax;
p->nLevDivMax = nLevDivMax;
p->nLevLeaves = ABC_MAX( 0, p->pNode->Level - p->nWinTfiMax - 1 );
// collect the nodes in TFI cone of pNode down to the given level (nWinTfiMax)
Res_WinCollectTfi( p );
// mark the TFO of the collected nodes up to the given level (nWinTfoMax)
Res_WinSweepTfo( p );
// find the roots of the window
Res_WinCollectRoots( p );
// add the nodes in the TFI of the roots that are not yet in the window
Res_WinAddMissing( p );
// find the leaves of the window
Res_WinCollectLeaves( p );
// collect the divisors up to the given maximum divisor level (nLevDivMax)
if ( nLevDivMax >= 0 )
Res_WinCollectDivisors( p );
else
Vec_PtrClear( p->vDivs );
// unmark window nodes
Res_WinUnmark( p );
return 1;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
src/opt/res/res_.c 0 → 100644
/**CFile****************************************************************
FileName [res_.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Resynthesis package.]
Synopsis []
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - January 15, 2007.]
Revision [$Id: res_.c,v 1.00 2007/01/15 00:00:00 alanmi Exp $]
***********************************************************************/
#include "abc.h"
#include "res.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment