diff options
-rw-r--r-- | abclib.dsp | 12 | ||||
-rw-r--r-- | src/aig/aig/aigTsim.c | 18 | ||||
-rw-r--r-- | src/aig/gia/gia.h | 40 | ||||
-rw-r--r-- | src/aig/gia/giaAig.c | 7 | ||||
-rw-r--r-- | src/aig/gia/giaDup.c | 51 | ||||
-rw-r--r-- | src/aig/gia/giaEnable.c | 218 | ||||
-rw-r--r-- | src/aig/gia/giaMan.c | 58 | ||||
-rw-r--r-- | src/aig/gia/giaRetime.c | 296 | ||||
-rw-r--r-- | src/aig/gia/giaScl.c | 38 | ||||
-rw-r--r-- | src/aig/gia/giaTsim.c | 100 | ||||
-rw-r--r-- | src/aig/gia/module.make | 1 | ||||
-rw-r--r-- | src/base/abci/abc.c | 146 | ||||
-rw-r--r-- | src/base/abci/abcPrint.c | 44 |
13 files changed, 932 insertions, 97 deletions
@@ -3651,14 +3651,6 @@ SOURCE=.\src\aig\gia\giaCof.c # End Source File # Begin Source File -SOURCE=.\src\aig\gia\giaCSat0.c -# End Source File -# Begin Source File - -SOURCE=.\src\aig\gia\giaCSat2.c -# End Source File -# Begin Source File - SOURCE=.\src\aig\gia\giaDfs.c # End Source File # Begin Source File @@ -3711,6 +3703,10 @@ SOURCE=.\src\aig\gia\giaMap.c # End Source File # Begin Source File +SOURCE=.\src\aig\gia\giaRetime.c +# End Source File +# Begin Source File + SOURCE=.\src\aig\gia\giaScl.c # End Source File # Begin Source File diff --git a/src/aig/aig/aigTsim.c b/src/aig/aig/aigTsim.c index e9bad08e..94797210 100644 --- a/src/aig/aig/aigTsim.c +++ b/src/aig/aig/aigTsim.c @@ -44,10 +44,10 @@ static inline int Aig_XsimInv( int Value ) } static inline int Aig_XsimAnd( int Value0, int Value1 ) { - if ( Value0 == AIG_XVSX || Value1 == AIG_XVSX ) - return AIG_XVSX; if ( Value0 == AIG_XVS0 || Value1 == AIG_XVS0 ) return AIG_XVS0; + if ( Value0 == AIG_XVSX || Value1 == AIG_XVSX ) + return AIG_XVSX; assert( Value0 == AIG_XVS1 && Value1 == AIG_XVS1 ); return AIG_XVS1; } @@ -347,7 +347,7 @@ Vec_Ptr_t * Aig_ManTernarySimulate( Aig_Man_t * p, int fVerbose ) Vec_Ptr_t * vMap; Aig_Obj_t * pObj, * pObjLi, * pObjLo; unsigned * pState;//, * pPrev; - int i, f, fConstants, Value, nCounter; + int i, f, fConstants, Value, nCounter, nRetired; // allocate the simulation manager pTsi = Aig_TsiStart( p ); // initialize the values @@ -383,11 +383,17 @@ Vec_Ptr_t * Aig_ManTernarySimulate( Aig_Man_t * p, int fVerbose ) Aig_TsiStateInsert( pTsi, pState, pTsi->nWords ); // simulate internal nodes Aig_ManForEachNode( p, pObj, i ) + { Aig_ObjSetXsim( pObj, Aig_XsimAnd(Aig_ObjGetXsimFanin0(pObj), Aig_ObjGetXsimFanin1(pObj)) ); +// printf( "%d %d Id = %2d. Value = %d.\n", +// Aig_ObjGetXsimFanin0(pObj), Aig_ObjGetXsimFanin1(pObj), +// i, Aig_XsimAnd(Aig_ObjGetXsimFanin0(pObj), Aig_ObjGetXsimFanin1(pObj)) ); + } // transfer the latch values Aig_ManForEachLiSeq( p, pObj, i ) Aig_ObjSetXsim( pObj, Aig_ObjGetXsimFanin0(pObj) ); nCounter = 0; + nRetired = 0; Aig_ManForEachLiLoSeq( p, pObjLi, pObjLo, i ) { if ( f < TSI_ONE_SERIES ) @@ -395,10 +401,16 @@ Vec_Ptr_t * Aig_ManTernarySimulate( Aig_Man_t * p, int fVerbose ) else { if ( Aig_ObjGetXsim(pObjLi) != Aig_ObjGetXsim(pObjLo) ) + { Aig_ObjSetXsim( pObjLo, AIG_XVSX ); + nRetired++; + } } nCounter += (Aig_ObjGetXsim(pObjLo) == AIG_XVS0); } +// if ( nRetired ) +// printf( "Retired %d registers.\n", nRetired ); + // if ( f && (f % 1000 == 0) ) // printf( "%d \n", f ); //printf( "%d ", nCounter ); diff --git a/src/aig/gia/gia.h b/src/aig/gia/gia.h index e3b3f014..28d610e9 100644 --- a/src/aig/gia/gia.h +++ b/src/aig/gia/gia.h @@ -116,6 +116,7 @@ struct Gia_Man_t_ int * pMapping; // mapping for each node Gia_Cex_t * pCexComb; // combinational counter-example int * pCopies; // intermediate copies + Vec_Int_t * vFlopClasses; // classes of flops for retiming/merging/etc }; @@ -123,15 +124,15 @@ struct Gia_Man_t_ typedef struct Emb_Par_t_ Emb_Par_t; struct Emb_Par_t_ { - int nDims; // the number of dimension - int nSols; // the number of solutions (typically, 2) - int nIters; // the number of iterations of FORCE - int fRefine; // use refinement by FORCE - int fCluster; // use clustered representation - int fDump; // dump Gnuplot file - int fDumpLarge; // dump Gnuplot file for large benchmarks - int fShowImage; // shows image if Gnuplot is installed - int fVerbose; // verbose flag + int nDims; // the number of dimension + int nSols; // the number of solutions (typically, 2) + int nIters; // the number of iterations of FORCE + int fRefine; // use refinement by FORCE + int fCluster; // use clustered representation + int fDump; // dump Gnuplot file + int fDumpLarge; // dump Gnuplot file for large benchmarks + int fShowImage; // shows image if Gnuplot is installed + int fVerbose; // verbose flag }; @@ -139,9 +140,9 @@ struct Emb_Par_t_ typedef struct Gia_ParFra_t_ Gia_ParFra_t; struct Gia_ParFra_t_ { - int nFrames; // the number of frames to unroll - int fInit; // initialize the timeframes - int fVerbose; // enables verbose output + int nFrames; // the number of frames to unroll + int fInit; // initialize the timeframes + int fVerbose; // enables verbose output }; @@ -151,11 +152,11 @@ typedef struct Gia_ParSim_t_ Gia_ParSim_t; struct Gia_ParSim_t_ { // user-controlled parameters - int nWords; // the number of machine words - int nIters; // the number of timeframes - int TimeLimit; // time limit in seconds - int fCheckMiter; // check if miter outputs are non-zero - int fVerbose; // enables verbose output + int nWords; // the number of machine words + int nIters; // the number of timeframes + int TimeLimit; // time limit in seconds + int fCheckMiter; // check if miter outputs are non-zero + int fVerbose; // enables verbose output }; extern void Gia_ManSimSetDefaultParams( Gia_ParSim_t * p ); @@ -456,6 +457,7 @@ extern int Gia_ManConeSize( Gia_Man_t * p, int * pNodes, int nNo /*=== giaDup.c ============================================================*/ extern Gia_Man_t * Gia_ManDup( Gia_Man_t * p ); extern Gia_Man_t * Gia_ManDupSelf( Gia_Man_t * p ); +extern Gia_Man_t * Gia_ManDupFlopClass( Gia_Man_t * p, int iClass ); extern Gia_Man_t * Gia_ManDupMarked( Gia_Man_t * p ); extern Gia_Man_t * Gia_ManDupTimes( Gia_Man_t * p, int nTimes ); extern Gia_Man_t * Gia_ManDupDfs( Gia_Man_t * p ); @@ -472,6 +474,7 @@ extern Gia_Man_t * Gia_ManTransformMiter( Gia_Man_t * p ); /*=== giaEnable.c ==========================================================*/ extern void Gia_ManDetectSeqSignals( Gia_Man_t * p, int fSetReset, int fVerbose ); extern Gia_Man_t * Gia_ManUnrollAndCofactor( Gia_Man_t * p, int nFrames, int nFanMax, int fVerbose ); +extern Gia_Man_t * Gia_ManRemoveEnables( Gia_Man_t * p ); /*=== giaEquiv.c ==========================================================*/ extern int Gia_ManCheckTopoOrder( Gia_Man_t * p ); extern int * Gia_ManDeriveNexts( Gia_Man_t * p ); @@ -515,8 +518,11 @@ extern void Gia_ManPrintStats( Gia_Man_t * p ); extern void Gia_ManPrintStatsShort( Gia_Man_t * p ); extern void Gia_ManPrintMiterStatus( Gia_Man_t * p ); extern void Gia_ManSetRegNum( Gia_Man_t * p, int nRegs ); +extern void Gia_ManReportImprovement( Gia_Man_t * p, Gia_Man_t * pNew ); /*=== giaMap.c ===========================================================*/ extern void Gia_ManPrintMappingStats( Gia_Man_t * p ); +/*=== giaRetime.c ===========================================================*/ +extern Gia_Man_t * Gia_ManRetimeForward( Gia_Man_t * p, int nMaxIters, int fVerbose ); /*=== giaSat.c ============================================================*/ extern int Sat_ManTest( Gia_Man_t * pGia, Gia_Obj_t * pObj, int nConfsMax ); /*=== giaScl.c ============================================================*/ diff --git a/src/aig/gia/giaAig.c b/src/aig/gia/giaAig.c index 3f707e1c..1c341d6f 100644 --- a/src/aig/gia/giaAig.c +++ b/src/aig/gia/giaAig.c @@ -194,12 +194,19 @@ Aig_Man_t * Gia_ManToAig( Gia_Man_t * p ) // if ( Aig_ObjRefs(pObj) == 0 ) ppNodes[Gia_ObjId(p, pObj)] = Aig_ObjCreatePi( pNew ); } + // add logic for the POs Gia_ManForEachCo( p, pObj, i ) { Gia_ManToAig_rec( pNew, ppNodes, p, Gia_ObjFanin0(pObj) ); ppNodes[Gia_ObjId(p, pObj)] = Aig_ObjCreatePo( pNew, Gia_ObjChild0Copy2(ppNodes, pObj, Gia_ObjId(p, pObj)) ); } +/* + Gia_ManForEachCo( p, pObj, i ) + Gia_ManToAig_rec( pNew, ppNodes, p, Gia_ObjFanin0(pObj) ); + Gia_ManForEachCo( p, pObj, i ) + ppNodes[Gia_ObjId(p, pObj)] = Aig_ObjCreatePo( pNew, Gia_ObjChild0Copy2(ppNodes, pObj, Gia_ObjId(p, pObj)) ); +*/ Aig_ManSetRegNum( pNew, Gia_ManRegNum(p) ); ABC_FREE( ppNodes ); return pNew; diff --git a/src/aig/gia/giaDup.c b/src/aig/gia/giaDup.c index 5fb801a7..0c536dab 100644 --- a/src/aig/gia/giaDup.c +++ b/src/aig/gia/giaDup.c @@ -101,6 +101,50 @@ Gia_Man_t * Gia_ManDupSelf( Gia_Man_t * p ) /**Function************************************************************* + Synopsis [Duplicates while adding self-loops to the registers.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Gia_Man_t * Gia_ManDupFlopClass( Gia_Man_t * p, int iClass ) +{ + Gia_Man_t * pNew; + Gia_Obj_t * pObj; + int i, Counter1 = 0, Counter2 = 0; + assert( p->vFlopClasses != NULL ); + pNew = Gia_ManStart( Gia_ManObjNum(p) ); + pNew->pName = Aig_UtilStrsav( p->pName ); + Gia_ManFillValue( p ); + Gia_ManConst0(p)->Value = 0; + Gia_ManForEachPi( p, pObj, i ) + pObj->Value = Gia_ManAppendCi( pNew ); + Gia_ManForEachRo( p, pObj, i ) + if ( Vec_IntEntry(p->vFlopClasses, i) != iClass ) + pObj->Value = Gia_ManAppendCi( pNew ); + Gia_ManForEachRo( p, pObj, i ) + if ( Vec_IntEntry(p->vFlopClasses, i) == iClass ) + pObj->Value = Gia_ManAppendCi( pNew ), Counter1++; + Gia_ManForEachAnd( p, pObj, i ) + pObj->Value = Gia_ManAppendAnd( pNew, Gia_ObjFanin0Copy(pObj), Gia_ObjFanin1Copy(pObj) ); + Gia_ManForEachPo( p, pObj, i ) + Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) ); + Gia_ManForEachRi( p, pObj, i ) + if ( Vec_IntEntry(p->vFlopClasses, i) != iClass ) + Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) ); + Gia_ManForEachRi( p, pObj, i ) + if ( Vec_IntEntry(p->vFlopClasses, i) == iClass ) + Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) ), Counter2++; + assert( Counter1 == Counter2 ); + Gia_ManSetRegNum( pNew, Counter1 ); + return pNew; +} + +/**Function************************************************************* + Synopsis [Duplicates AIG without any changes.] Description [] @@ -132,6 +176,8 @@ Gia_Man_t * Gia_ManDupMarked( Gia_Man_t * p ) } else if ( Gia_ObjIsCo(pObj) ) { + Gia_Obj_t * pFanin = Gia_ObjFanin0(pObj); + pObj->Value = Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) ); nRis += Gia_ObjIsRi(p, pObj); } @@ -552,7 +598,10 @@ Gia_Man_t * Gia_ManDupDfsCiMap( Gia_Man_t * p, int * pCi2Lit, Vec_Int_t * vLits else { Gia_ManForEachCo( p, pObj, i ) - Gia_ManDupDfs_rec( pNew, p, pObj ); + { + Gia_ManDupDfs2_rec( pNew, p, Gia_ObjFanin0(pObj) ); + Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) ); + } } Gia_ManHashStop( pNew ); Gia_ManSetRegNum( pNew, Gia_ManRegNum(p) ); diff --git a/src/aig/gia/giaEnable.c b/src/aig/gia/giaEnable.c index f80bc885..13d6145c 100644 --- a/src/aig/gia/giaEnable.c +++ b/src/aig/gia/giaEnable.c @@ -415,7 +415,225 @@ Gia_Man_t * Gia_ManUnrollAndCofactor( Gia_Man_t * p, int nFrames, int nFanMax, i Vec_IntFree( vCofSigs ); Gia_ManStop( pAig ); return pNew; +} + + + +/**Function************************************************************* + + Synopsis [Transform seq circuits with enables by removing enables.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Gia_Man_t * Gia_ManRemoveEnables2( Gia_Man_t * p ) +{ + Gia_Man_t * pNew, * pAux; + Gia_Obj_t * pTemp, * pObjC, * pObj0, * pObj1, * pFlopIn, * pFlopOut; + Gia_Obj_t * pThis, * pNode; + int i; + pNew = Gia_ManStart( Gia_ManObjNum(p) ); + pNew->pName = Aig_UtilStrsav( p->pName ); + Gia_ManHashAlloc( pNew ); + Gia_ManFillValue( p ); + Gia_ManConst0(p)->Value = 0; + Gia_ManForEachCi( p, pThis, i ) + pThis->Value = Gia_ManAppendCi( pNew ); + Gia_ManForEachAnd( p, pThis, i ) + pThis->Value = Gia_ManHashAnd( pNew, Gia_ObjFanin0Copy(pThis), Gia_ObjFanin1Copy(pThis) ); + Gia_ManForEachPo( p, pThis, i ) + pThis->Value = Gia_ObjFanin0Copy(pThis); + Gia_ManForEachRi( p, pFlopIn, i ) + { + pNode = Gia_ObjFanin0(pFlopIn); + if ( !Gia_ObjIsMuxType(pNode) ) + { + printf( "Cannot recognize enable of flop %d.\n", i ); + continue; + } + pObjC = Gia_ObjRecognizeMux( pNode, &pObj1, &pObj0 ); + pFlopOut = Gia_ObjRiToRo( p, pFlopIn ); + if ( Gia_Regular(pObj0) != pFlopOut && Gia_Regular(pObj1) != pFlopOut ) + { + printf( "Cannot recognize self-loop of enable flop %d.\n", i ); + continue; + } + if ( !Gia_ObjFaninC0(pFlopIn) ) + { + pObj0 = Gia_Not(pObj0); + pObj1 = Gia_Not(pObj1); + } + if ( Gia_IsComplement(pObjC) ) + { + pObjC = Gia_Not(pObjC); + pTemp = pObj0; + pObj0 = pObj1; + pObj1 = pTemp; + } + if ( Gia_Regular(pObj0) == pFlopOut ) + { +// printf( "FlopIn compl = %d. FlopOut is d0. Complement = %d.\n", +// Gia_ObjFaninC0(pFlopIn), Gia_IsComplement(pObj0) ); + pFlopIn->Value = Gia_LitNotCond(Gia_Regular(pObj1)->Value, !Gia_IsComplement(pObj1)); + } + else if ( Gia_Regular(pObj1) == pFlopOut ) + { +// printf( "FlopIn compl = %d. FlopOut is d1. Complement = %d.\n", +// Gia_ObjFaninC0(pFlopIn), Gia_IsComplement(pObj1) ); + pFlopIn->Value = Gia_LitNotCond(Gia_Regular(pObj0)->Value, !Gia_IsComplement(pObj0)); + } + } + Gia_ManForEachCo( p, pThis, i ) + Gia_ManAppendCo( pNew, pThis->Value ); + Gia_ManHashStop( pNew ); + Gia_ManSetRegNum( pNew, Gia_ManRegNum(p) ); + pNew = Gia_ManCleanup( pAux = pNew ); + Gia_ManStop( pAux ); + return pNew; +} + +/**Function************************************************************* + Synopsis [Transform seq circuits with enables by removing enables.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Gia_Man_t * Gia_ManRemoveEnables( Gia_Man_t * p ) +{ + Vec_Ptr_t * vCtrls, * vDatas; + Vec_Int_t * vFlopClasses; + Gia_Man_t * pNew, * pAux; + Gia_Obj_t * pFlopIn, * pFlopOut, * pDriver, * pFan0, * pFan1, * pCtrl, * pData, * pObj; + int i, iClass, fCompl, Counter = 0; + vCtrls = Vec_PtrAlloc( 100 ); + Vec_PtrPush( vCtrls, NULL ); + vDatas = Vec_PtrAlloc( Gia_ManRegNum(p) ); + vFlopClasses = Vec_IntAlloc( Gia_ManRegNum(p) ); + Gia_ManForEachRi( p, pFlopIn, i ) + { + fCompl = Gia_ObjFaninC0(pFlopIn); + pDriver = Gia_ObjFanin0(pFlopIn); + if ( !Gia_ObjIsAnd(pDriver) ) + { + printf( "The flop driver %d is not a node.\n", i ); + Vec_PtrPush( vDatas, NULL ); + Vec_IntPush( vFlopClasses, 0 ); + Counter++; + continue; + } + if ( !Gia_ObjFaninC0(pDriver) || !Gia_ObjFaninC1(pDriver) ) + { + printf( "The flop driver %d is not an OR gate.\n", i ); + Vec_PtrPush( vDatas, NULL ); + Vec_IntPush( vFlopClasses, 0 ); + Counter++; + continue; + } + pFan0 = Gia_ObjFanin0(pDriver); + pFan1 = Gia_ObjFanin1(pDriver); + if ( !Gia_ObjIsAnd(pFan0) || !Gia_ObjIsAnd(pFan1) ) + { + printf( "The flop driver fanin %d is not a node.\n", i ); + Vec_PtrPush( vDatas, NULL ); + Vec_IntPush( vFlopClasses, 0 ); + Counter++; + continue; + } + pFlopOut = Gia_ObjRiToRo( p, pFlopIn ); + pFlopOut = Gia_NotCond( pFlopOut, !fCompl ); + if ( Gia_ObjChild0(pFan0) != pFlopOut && Gia_ObjChild1(pFan0) != pFlopOut && + Gia_ObjChild0(pFan1) != pFlopOut && Gia_ObjChild1(pFan1) != pFlopOut ) + { + printf( "The flop %d does not have a self-loop.\n", i ); + Vec_PtrPush( vDatas, NULL ); + Vec_IntPush( vFlopClasses, 0 ); + Counter++; + continue; + } + pData = NULL; + if ( Gia_ObjChild0(pFan0) == pFlopOut ) + { + pCtrl = Gia_Not( Gia_ObjChild1(pFan0) ); + if ( Gia_ObjFanin0(pFan1) == Gia_Regular(pCtrl) ) + pData = Gia_ObjChild1(pFan1); + else + pData = Gia_ObjChild0(pFan1); + } + else if ( Gia_ObjChild1(pFan0) == pFlopOut ) + { + pCtrl = Gia_Not( Gia_ObjChild0(pFan0) ); + if ( Gia_ObjFanin0(pFan1) == Gia_Regular(pCtrl) ) + pData = Gia_ObjChild1(pFan1); + else + pData = Gia_ObjChild0(pFan1); + } + else if ( Gia_ObjChild0(pFan1) == pFlopOut ) + { + pCtrl = Gia_Not( Gia_ObjChild1(pFan1) ); + if ( Gia_ObjFanin0(pFan0) == Gia_Regular(pCtrl) ) + pData = Gia_ObjChild1(pFan0); + else + pData = Gia_ObjChild0(pFan0); + } + else if ( Gia_ObjChild1(pFan1) == pFlopOut ) + { + pCtrl = Gia_Not( Gia_ObjChild0(pFan1) ); + if ( Gia_ObjFanin0(pFan0) == Gia_Regular(pCtrl) ) + pData = Gia_ObjChild1(pFan0); + else + pData = Gia_ObjChild0(pFan0); + } + else assert( 0 ); + if ( Vec_PtrFind( vCtrls, pCtrl ) == -1 ) + Vec_PtrPush( vCtrls, pCtrl ); + iClass = Vec_PtrFind( vCtrls, pCtrl ); + pData = Gia_NotCond( pData, !fCompl ); + Vec_PtrPush( vDatas, pData ); + Vec_IntPush( vFlopClasses, iClass ); + } + assert( Vec_PtrSize( vDatas ) == Gia_ManRegNum(p) ); + assert( Vec_IntSize( vFlopClasses ) == Gia_ManRegNum(p) ); + printf( "Detected %d classes.\n", Vec_PtrSize(vCtrls) - (Counter == 0) ); + Vec_PtrFree( vCtrls ); + + + pNew = Gia_ManStart( Gia_ManObjNum(p) ); + pNew->pName = Aig_UtilStrsav( p->pName ); + Gia_ManConst0(p)->Value = 0; + Gia_ManForEachObj1( p, pObj, i ) + { + if ( Gia_ObjIsAnd(pObj) ) + pObj->Value = Gia_ManAppendAnd( pNew, Gia_ObjFanin0Copy(pObj), Gia_ObjFanin1Copy(pObj) ); + else if ( Gia_ObjIsCi(pObj) ) + pObj->Value = Gia_ManAppendCi( pNew ); + else if ( Gia_ObjIsPo(p, pObj) ) + pObj->Value = Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) ); + } + Gia_ManForEachRi( p, pObj, i ) + { + pData = Vec_PtrEntry(vDatas, i); + if ( pData == NULL ) + pObj->Value = Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) ); + else + pObj->Value = Gia_ManAppendCo( pNew, Gia_LitNotCond(Gia_Regular(pData)->Value, Gia_IsComplement(pData)) ); + } + Gia_ManSetRegNum( pNew, Gia_ManRegNum(p) ); + Vec_PtrFree( vDatas ); + + + pNew = Gia_ManCleanup( pAux = pNew ); + Gia_ManStop( pAux ); + pNew->vFlopClasses = vFlopClasses; + return pNew; } //////////////////////////////////////////////////////////////////////// diff --git a/src/aig/gia/giaMan.c b/src/aig/gia/giaMan.c index 95bffee8..4439453d 100644 --- a/src/aig/gia/giaMan.c +++ b/src/aig/gia/giaMan.c @@ -66,6 +66,8 @@ Gia_Man_t * Gia_ManStart( int nObjsMax ) ***********************************************************************/ void Gia_ManStop( Gia_Man_t * p ) { + if ( p->vFlopClasses ) + Vec_IntFree( p->vFlopClasses ); Vec_IntFree( p->vCis ); Vec_IntFree( p->vCos ); ABC_FREE( p->pCexComb ); @@ -94,6 +96,38 @@ void Gia_ManStop( Gia_Man_t * p ) SeeAlso [] ***********************************************************************/ +void Gia_ManPrintClasses( Gia_Man_t * p ) +{ + Gia_Obj_t * pObj; + int i; + if ( p->vFlopClasses == NULL ) + return; + Gia_ManForEachRo( p, pObj, i ) + printf( "%d", Vec_IntEntry(p->vFlopClasses, i) ); + printf( "\n" ); + + { + Gia_Man_t * pTemp; + pTemp = Gia_ManDupFlopClass( p, 1 ); + Gia_WriteAiger( pTemp, "dom1.aig", 0, 0 ); + Gia_ManStop( pTemp ); + pTemp = Gia_ManDupFlopClass( p, 2 ); + Gia_WriteAiger( pTemp, "dom2.aig", 0, 0 ); + Gia_ManStop( pTemp ); + } +} + +/**Function************************************************************* + + Synopsis [Prints stats for the AIG.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ void Gia_ManPrintStats( Gia_Man_t * p ) { if ( p->pName ) @@ -113,6 +147,8 @@ void Gia_ManPrintStats( Gia_Man_t * p ) Gia_ManEquivPrintClasses( p, 0, 0.0 ); if ( p->pMapping ) Gia_ManPrintMappingStats( p ); + // print register classes +// Gia_ManPrintClasses( p ); } /**Function************************************************************* @@ -205,6 +241,28 @@ void Gia_ManSetRegNum( Gia_Man_t * p, int nRegs ) } +/**Function************************************************************* + + Synopsis [Reports the reduction of the AIG.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Gia_ManReportImprovement( Gia_Man_t * p, Gia_Man_t * pNew ) +{ + printf( "REG: Beg = %5d. End = %5d. (R =%5.1f %%) ", + Gia_ManRegNum(p), Gia_ManRegNum(pNew), + Gia_ManRegNum(p)? 100.0*(Gia_ManRegNum(p)-Gia_ManRegNum(pNew))/Gia_ManRegNum(p) : 0.0 ); + printf( "AND: Beg = %6d. End = %6d. (R =%5.1f %%)", + Gia_ManAndNum(p), Gia_ManAndNum(pNew), + Gia_ManAndNum(p)? 100.0*(Gia_ManAndNum(p)-Gia_ManAndNum(pNew))/Gia_ManAndNum(p) : 0.0 ); + printf( "\n" ); +} + //////////////////////////////////////////////////////////////////////// /// END OF FILE /// //////////////////////////////////////////////////////////////////////// diff --git a/src/aig/gia/giaRetime.c b/src/aig/gia/giaRetime.c new file mode 100644 index 00000000..4f2c6e08 --- /dev/null +++ b/src/aig/gia/giaRetime.c @@ -0,0 +1,296 @@ +/**CFile**************************************************************** + + FileName [giaRetime.c] + + SystemName [ABC: Logic synthesis and verification system.] + + PackageName [Scalable AIG package.] + + Synopsis [Performs most-forward retiming for AIG with flop classes.] + + Author [Alan Mishchenko] + + Affiliation [UC Berkeley] + + Date [Ver. 1.0. Started - June 20, 2005.] + + Revision [$Id: giaRetime.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $] + +***********************************************************************/ + +#include "gia.h" + +//////////////////////////////////////////////////////////////////////// +/// DECLARATIONS /// +//////////////////////////////////////////////////////////////////////// + +//////////////////////////////////////////////////////////////////////// +/// FUNCTION DEFINITIONS /// +//////////////////////////////////////////////////////////////////////// + +/**Function************************************************************* + + Synopsis [Marks objects reachables from Const0 and PIs/ + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Gia_ManMarkAutonomous_rec( Gia_Man_t * p, Gia_Obj_t * pObj ) +{ + if ( Gia_ObjIsTravIdCurrent(p, pObj) ) + return pObj->fMark0; + Gia_ObjSetTravIdCurrent(p, pObj); + assert( pObj->fMark0 == 0 ); + if ( Gia_ObjIsPi(p, pObj) || Gia_ObjIsConst0(pObj) ) + return pObj->fMark0 = 1; + if ( Gia_ObjIsCo(pObj) ) + return pObj->fMark0 = Gia_ManMarkAutonomous_rec( p, Gia_ObjFanin0(pObj) ); + if ( Gia_ObjIsCi(pObj) ) + return pObj->fMark0 = Gia_ManMarkAutonomous_rec( p, Gia_ObjRoToRi(p, pObj) ); + assert( Gia_ObjIsAnd(pObj) ); + if ( Gia_ManMarkAutonomous_rec( p, Gia_ObjFanin0(pObj) ) ) + return pObj->fMark0 = 1; + return pObj->fMark0 = Gia_ManMarkAutonomous_rec( p, Gia_ObjFanin1(pObj) ); +} + +/**Function************************************************************* + + Synopsis [Marks with current trav ROs reachable from Const0 and PIs.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Gia_ManMarkAutonomous( Gia_Man_t * p ) +{ + Gia_Obj_t * pObj; + int i; + Gia_ManCleanMark0( p ); + Gia_ManIncrementTravId( p ); + Gia_ManForEachRo( p, pObj, i ) + Gia_ManMarkAutonomous_rec( p, pObj ); + Gia_ManIncrementTravId( p ); + Gia_ManForEachRo( p, pObj, i ) + if ( pObj->fMark0 ) + Gia_ObjSetTravIdCurrent( p, pObj ); + Gia_ManCleanMark0( p ); +} + +/**Function************************************************************* + + Synopsis [Duplicates the AIG recursively.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Gia_ManRetimeDup_rec( Gia_Man_t * pNew, Gia_Obj_t * pObj ) +{ + if ( ~pObj->Value ) + return; + assert( Gia_ObjIsAnd(pObj) ); + Gia_ManRetimeDup_rec( pNew, Gia_ObjFanin0(pObj) ); + Gia_ManRetimeDup_rec( pNew, Gia_ObjFanin1(pObj) ); + pObj->Value = Gia_ManHashAnd( pNew, Gia_ObjFanin0Copy(pObj), Gia_ObjFanin1Copy(pObj) ); +} + +/**Function************************************************************* + + Synopsis [Duplicates the AIG while retiming the registers to the cut.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Gia_Man_t * Gia_ManRetimeDupForward( Gia_Man_t * p, Vec_Ptr_t * vCut ) +{ + Gia_Man_t * pNew, * pTemp; + Gia_Obj_t * pObj, * pObjRi, * pObjRo; + int i; + // create the new manager + pNew = Gia_ManStart( Gia_ManObjNum(p) ); + pNew->pName = Aig_UtilStrsav( p->pName ); + Gia_ManHashAlloc( pNew ); + // create the true PIs + Gia_ManFillValue( p ); + Gia_ManSetPhase( p ); + Gia_ManConst0(p)->Value = 0; + Gia_ManForEachPi( p, pObj, i ) + pObj->Value = Gia_ManAppendCi( pNew ); + // create the registers + Vec_PtrForEachEntry( vCut, pObj, i ) + pObj->Value = Gia_LitNotCond( Gia_ManAppendCi(pNew), pObj->fPhase ); + // duplicate logic above the cut + Gia_ManForEachCo( p, pObj, i ) + Gia_ManRetimeDup_rec( pNew, Gia_ObjFanin0(pObj) ); + // create the true POs + Gia_ManForEachPo( p, pObj, i ) + Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) ); + // remember value in LI + Gia_ManForEachRi( p, pObj, i ) + pObj->Value = Gia_ObjFanin0Copy(pObj); + // transfer values from the LIs to the LOs + Gia_ManForEachRiRo( p, pObjRi, pObjRo, i ) + pObjRo->Value = pObjRi->Value; + // erase the data values on the internal nodes of the cut + Vec_PtrForEachEntry( vCut, pObj, i ) + if ( Gia_ObjIsAnd(pObj) ) + pObj->Value = ~0; + // duplicate logic below the cut + Vec_PtrForEachEntry( vCut, pObj, i ) + { + Gia_ManRetimeDup_rec( pNew, pObj ); + Gia_ManAppendCo( pNew, Gia_LitNotCond( pObj->Value, pObj->fPhase ) ); + } + Gia_ManHashStop( pNew ); + Gia_ManSetRegNum( pNew, Vec_PtrSize(vCut) ); + pNew = Gia_ManCleanup( pTemp = pNew ); + Gia_ManStop( pTemp ); + return pNew; +} + +/**Function************************************************************* + + Synopsis [Derives the cut for forward retiming.] + + Description [Assumes topological ordering of the nodes.] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Gia_Man_t * Gia_ManRetimeForwardOne( Gia_Man_t * p, int * pnRegFixed, int * pnRegMoves ) +{ + Vec_Int_t * vFlopClasses = NULL; + Vec_Int_t * vObjClasses = NULL; + Gia_Man_t * pNew; + Vec_Ptr_t * vCut; + Gia_Obj_t * pObj; + int i; + if ( p->vFlopClasses ) + { + printf( "Performing retiming with register classes.\n" ); + vObjClasses = Vec_IntAlloc( Gia_ManObjNum(p) ); + for ( i = 0; i < Gia_ManObjNum(p); i++ ) + Vec_IntPush( vObjClasses, -1 ); + Gia_ManForEachRo( p, pObj, i ) + Vec_IntWriteEntry( vObjClasses, Gia_ObjId(p, pObj), Vec_IntEntry(p->vFlopClasses, i) ); + vFlopClasses = Vec_IntAlloc( Gia_ManRegNum(p) ); + } + // mark the retimable nodes + Gia_ManResetTravId( p ); + Gia_ManMarkAutonomous( p ); + // mark the retimable registers with the fresh trav ID + Gia_ManIncrementTravId( p ); + *pnRegFixed = 0; + Gia_ManForEachRo( p, pObj, i ) + if ( Gia_ObjIsTravIdPrevious(p, pObj) ) + Gia_ObjSetTravIdCurrent(p, pObj); + else + (*pnRegFixed)++; + // mark all the nodes that can be retimed forward + *pnRegMoves = 0; + Gia_ManForEachAnd( p, pObj, i ) + if ( Gia_ObjIsTravIdCurrent(p, Gia_ObjFanin0(pObj)) && Gia_ObjIsTravIdCurrent(p, Gia_ObjFanin1(pObj)) ) + { + if ( vObjClasses && Vec_IntEntry(vObjClasses, Gia_ObjFaninId0(pObj, i)) != Vec_IntEntry(vObjClasses, Gia_ObjFaninId1(pObj, i)) ) + continue; + if ( vObjClasses ) + Vec_IntWriteEntry( vObjClasses, Gia_ObjId(p, pObj), Vec_IntEntry(vObjClasses, Gia_ObjFaninId0(pObj, i)) ); + Gia_ObjSetTravIdCurrent(p, pObj); + (*pnRegMoves)++; + } + // mark the remaining registers + Gia_ManForEachRo( p, pObj, i ) + Gia_ObjSetTravIdCurrent(p, pObj); + // find the cut (all such marked objects that fanout into unmarked nodes) + vCut = Vec_PtrAlloc( 1000 ); + Gia_ManIncrementTravId( p ); + Gia_ManForEachObj( p, pObj, i ) + { + if ( Gia_ObjIsTravIdPrevious(p, pObj) ) + continue; + if ( (Gia_ObjIsCo(pObj) || Gia_ObjIsAnd(pObj)) && Gia_ObjIsTravIdPrevious(p, Gia_ObjFanin0(pObj)) ) + { + if ( vFlopClasses ) + Vec_IntPush( vFlopClasses, Vec_IntEntry(vObjClasses, Gia_ObjFaninId0(pObj, i)) ); + Vec_PtrPush( vCut, Gia_ObjFanin0(pObj) ); + Gia_ObjSetTravIdCurrent( p, Gia_ObjFanin0(pObj) ); + } + if ( Gia_ObjIsAnd(pObj) && Gia_ObjIsTravIdPrevious(p, Gia_ObjFanin1(pObj)) ) + { + if ( vFlopClasses ) + Vec_IntPush( vFlopClasses, Vec_IntEntry(vObjClasses, Gia_ObjFaninId1(pObj, i)) ); + Vec_PtrPush( vCut, Gia_ObjFanin1(pObj) ); + Gia_ObjSetTravIdCurrent( p, Gia_ObjFanin1(pObj) ); + } + } + assert( vFlopClasses == NULL || Vec_IntSize(vFlopClasses) == Vec_PtrSize(vCut) ); + // finally derive the new manager + pNew = Gia_ManRetimeDupForward( p, vCut ); + Vec_PtrFree( vCut ); + Vec_IntFree( vObjClasses ); + pNew->vFlopClasses = vFlopClasses; + return pNew; +} + +/**Function************************************************************* + + Synopsis [Derives the cut for forward retiming.] + + Description [Assumes topological ordering of the nodes.] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Gia_Man_t * Gia_ManRetimeForward( Gia_Man_t * p, int nMaxIters, int fVerbose ) +{ + Gia_Man_t * pNew, * pTemp; + int i, clk, nRegFixed, nRegMoves = 1; + pNew = p; + for ( i = 0; i < nMaxIters && nRegMoves > 0; i++ ) + { + clk = clock(); + pNew = Gia_ManRetimeForwardOne( pTemp = pNew, &nRegFixed, &nRegMoves ); + if ( fVerbose ) + { + printf( "%2d : And = %6d. Reg = %5d. Unret = %5d. Move = %6d. ", + i + 1, Gia_ManAndNum(pTemp), Gia_ManRegNum(pTemp), nRegFixed, nRegMoves ); + ABC_PRT( "Time", clock() - clk ); + } + if ( pTemp != p ) + Gia_ManStop( pTemp ); + } +/* + clk = clock(); + pNew = Gia_ManReduceLaches( pNew, fVerbose ); + if ( fVerbose ) + { + ABC_PRT( "Register sharing time", clock() - clk ); + } +*/ + return pNew; +} + + +//////////////////////////////////////////////////////////////////////// +/// END OF FILE /// +//////////////////////////////////////////////////////////////////////// + + diff --git a/src/aig/gia/giaScl.c b/src/aig/gia/giaScl.c index 9058af7d..cf72104f 100644 --- a/src/aig/gia/giaScl.c +++ b/src/aig/gia/giaScl.c @@ -136,8 +136,6 @@ int Gia_ManSeqMarkUsed( Gia_Man_t * p ) Gia_ManConst0(p)->fMark0 = 0; Gia_ManForEachPi( p, pObj, i ) pObj->fMark0 = 0; - Gia_ManForEachPo( p, pObj, i ) - pObj->fMark0 = 0; vRoots = Gia_ManCollectPoIds( p ); Gia_ManForEachObjVec( vRoots, p, pObj, i ) nNodes += Gia_ManSeqMarkUsed_rec( p, pObj, vRoots ); @@ -166,7 +164,7 @@ Gia_Man_t * Gia_ManSeqCleanup( Gia_Man_t * p ) Synopsis [Find representatives due to identical fanins.] - Description [] + Description [Returns the old manager if there is no changes.] SideEffects [] @@ -189,7 +187,7 @@ Gia_Man_t * Gia_ManReduceEquiv( Gia_Man_t * p, int fVerbose ) Gia_ManForEachRiRo( p, pObjRi, pObjRo, i ) { iLit = Gia_ObjFanin0Copy( pObjRi ); - if ( Gia_ObjFaninId0p(p, pObjRi) == 0 ) + if ( Gia_ObjFaninId0p(p, pObjRi) == 0 && Gia_ObjFaninC0(pObjRi) == 0 ) // const 0 pCi2Lit[Gia_ManPiNum(p)+i] = 0, Counter0++; else if ( ~pMaps[iLit] ) // in this case, ID(pObj) > ID(pRepr) pCi2Lit[Gia_ManPiNum(p)+i] = pMaps[iLit], Counter++; @@ -209,10 +207,13 @@ Gia_Man_t * Gia_ManReduceEquiv( Gia_Man_t * p, int fVerbose ) } } */ - if ( fVerbose ) - printf( "ReduceEquiv detected %d constant regs and %d equivalent regs.\n", Counter0, Counter ); +// if ( fVerbose ) +// printf( "ReduceEquiv detected %d constant regs and %d equivalent regs.\n", Counter0, Counter ); ABC_FREE( pMaps ); - pNew = Gia_ManDupDfsCiMap( p, pCi2Lit, NULL ); + if ( Counter0 || Counter ) + pNew = Gia_ManDupDfsCiMap( p, pCi2Lit, NULL ); + else + pNew = p; ABC_FREE( pCi2Lit ); return pNew; } @@ -233,19 +234,34 @@ Gia_Man_t * Gia_ManSeqStructSweep( Gia_Man_t * p, int fConst, int fEquiv, int fV Gia_Man_t * pTemp; if ( Gia_ManRegNum(p) == 0 ) return Gia_ManDup( p ); - p = Gia_ManSeqCleanup( p ); + if ( fVerbose ) + printf( "Performing sequential cleanup.\n" ); + p = Gia_ManSeqCleanup( pTemp = p ); + if ( fVerbose ) + Gia_ManReportImprovement( pTemp, p ); if ( fConst && Gia_ManRegNum(p) ) { p = Gia_ManReduceConst( pTemp = p, fVerbose ); + if ( fVerbose ) + Gia_ManReportImprovement( pTemp, p ); Gia_ManStop( pTemp ); } - if ( fEquiv && Gia_ManRegNum(p) ) + if ( fVerbose && fEquiv ) + printf( "Merging combinationally equivalent flops.\n" ); + if ( fEquiv ) + while ( 1 ) { + p = Gia_ManSeqCleanup( pTemp = p ); + if ( fVerbose ) + Gia_ManReportImprovement( pTemp, p ); + Gia_ManStop( pTemp ); + if ( Gia_ManRegNum(p) == 0 ) + break; p = Gia_ManReduceEquiv( pTemp = p, fVerbose ); + if ( p == pTemp ) + break; Gia_ManStop( pTemp ); } - p = Gia_ManSeqCleanup( pTemp = p ); - Gia_ManStop( pTemp ); return p; } diff --git a/src/aig/gia/giaTsim.c b/src/aig/gia/giaTsim.c index c7aac864..8cfe5959 100644 --- a/src/aig/gia/giaTsim.c +++ b/src/aig/gia/giaTsim.c @@ -47,6 +47,8 @@ struct Gia_ManTer_t_ int nStateWords; Vec_Ptr_t * vStates; Vec_Ptr_t * vFlops; + Vec_Int_t * vRetired; // retired registers + char * pRetired; // retired registers int * pCount0; int * pCountX; // hash table for states @@ -84,11 +86,13 @@ Gia_ManTer_t * Gia_ManTerCreate( Gia_Man_t * pAig ) p->pDataSimCos = ABC_ALLOC( unsigned, Aig_BitWordNum(2*Gia_ManCoNum(p->pAig)) ); // allocate storage for terminary states p->nStateWords = Aig_BitWordNum( 2*Gia_ManRegNum(pAig) ); - p->vStates = Vec_PtrAlloc( 1000 ); - p->pCount0 = ABC_CALLOC( int, Gia_ManRegNum(pAig) ); - p->pCountX = ABC_CALLOC( int, Gia_ManRegNum(pAig) ); - p->nBins = Aig_PrimeCudd( 500 ); - p->pBins = ABC_CALLOC( unsigned *, p->nBins ); + p->vStates = Vec_PtrAlloc( 1000 ); + p->pCount0 = ABC_CALLOC( int, Gia_ManRegNum(pAig) ); + p->pCountX = ABC_CALLOC( int, Gia_ManRegNum(pAig) ); + p->nBins = Aig_PrimeCudd( 500 ); + p->pBins = ABC_CALLOC( unsigned *, p->nBins ); + p->vRetired = Vec_IntAlloc( 100 ); + p->pRetired = ABC_CALLOC( char, Gia_ManRegNum(pAig) ); return p; } @@ -130,6 +134,8 @@ void Gia_ManTerDelete( Gia_ManTer_t * p ) if ( p->vFlops ) Gia_ManTerStatesFree( p->vFlops ); Gia_ManStop( p->pAig ); + Vec_IntFree( p->vRetired ); + ABC_FREE( p->pRetired ); ABC_FREE( p->pCount0 ); ABC_FREE( p->pCountX ); ABC_FREE( p->pBins ); @@ -169,6 +175,10 @@ static inline void Gia_ManTerSimulateCi( Gia_ManTer_t * p, Gia_Obj_t * pObj, int static inline void Gia_ManTerSimulateCo( Gia_ManTer_t * p, int iCo, Gia_Obj_t * pObj ) { int Value = Gia_ManTerSimInfoGet( p->pDataSim, Gia_ObjDiff0(pObj) ); + if ( iCo == Gia_ManCoNum(p->pAig) -1 ) + { + int s = 0; + } Gia_ManTerSimInfoSet( p->pDataSimCos, iCo, Gia_XsimNotCond( Value, Gia_ObjFaninC0(pObj) ) ); } @@ -368,7 +378,7 @@ static inline void Gia_ManTerSimulateRound( Gia_ManTer_t * p ) int i, iCis = 0, iCos = 0; assert( p->pAig->nFront > 0 ); assert( Gia_ManConst0(p->pAig)->Value == 0 ); - Gia_ManTerSimInfoSet( p->pDataSim, 0, GIA_ONE ); + Gia_ManTerSimInfoSet( p->pDataSim, 0, GIA_ZER ); Gia_ManForEachObj1( p->pAig, pObj, i ) { if ( Gia_ObjIsAndOrConst0(pObj) ) @@ -403,20 +413,54 @@ static inline void Gia_ManTerSimulateRound( Gia_ManTer_t * p ) SeeAlso [] ***********************************************************************/ -int Gia_ManTerRetire( Gia_ManTer_t * p, unsigned * pState ) +int Gia_ManTerRetire2( Gia_ManTer_t * p, unsigned * pState ) { - int i, iMaxTerValue = 0, Counter = 0; + int i, Entry, iMaxTerValue = -1, Counter = 0; + // find non-retired register with this value for ( i = 0; i < Gia_ManRegNum(p->pAig); i++ ) - if ( Gia_ManTerSimInfoGet( pState, i ) != GIA_UND && iMaxTerValue < p->pCountX[i] ) + if ( Gia_ManTerSimInfoGet( pState, i ) != GIA_UND && !p->pRetired[i] && iMaxTerValue < p->pCountX[i] ) iMaxTerValue = p->pCountX[i]; - // retire all registers with this value + assert( iMaxTerValue >= 0 ); + // retire the first registers with this value for ( i = 0; i < Gia_ManRegNum(p->pAig); i++ ) - if ( Gia_ManTerSimInfoGet( pState, i ) != GIA_UND && iMaxTerValue == p->pCountX[i] ) + if ( Gia_ManTerSimInfoGet( pState, i ) != GIA_UND && !p->pRetired[i] && iMaxTerValue == p->pCountX[i] ) { - Gia_ManTerSimInfoSet( p->pDataSimCis, Gia_ManPiNum(p->pAig)+i, GIA_UND ); - Counter++; + assert( p->pRetired[i] == 0 ); + p->pRetired[i] = 1; + Vec_IntPush( p->vRetired, i ); + if ( iMaxTerValue == 0 ) + break; } - return Counter; + // update all the retired registers + Vec_IntForEachEntry( p->vRetired, Entry, i ) + Gia_ManTerSimInfoSet( p->pDataSimCis, Gia_ManPiNum(p->pAig)+Entry, GIA_UND ); + return Vec_IntSize(p->vRetired); +} + +/**Function************************************************************* + + Synopsis [Retires a set of registers to speed up convergence.] + + Description [Retire all non-ternary registers which has max number + of ternary values so far.] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Gia_ManTerRetire( Gia_ManTer_t * p, unsigned * pThis, unsigned * pPrev ) +{ + int i, Entry; + // find registers whose value has changed + Vec_IntClear( p->vRetired ); + for ( i = 0; i < Gia_ManRegNum(p->pAig); i++ ) + if ( Gia_ManTerSimInfoGet( pThis, i ) != Gia_ManTerSimInfoGet( pPrev, i ) ) + Vec_IntPush( p->vRetired, i ); + // set all of them to zero + Vec_IntForEachEntry( p->vRetired, Entry, i ) + Gia_ManTerSimInfoSet( p->pDataSimCis, Gia_ManPiNum(p->pAig)+Entry, GIA_UND ); + return Vec_IntSize(p->vRetired); } /**Function************************************************************* @@ -509,8 +553,8 @@ void Gia_ManTerAnalyze( Gia_ManTer_t * p ) nZeros++; else if ( p->pCountX[i] == 0 ) nConsts++; - printf( "Found %d constant registers.\n", nZeros ); - printf( "Found %d non-ternary registers.\n", nConsts ); +// printf( "Found %d constant registers.\n", nZeros ); +// printf( "Found %d non-ternary registers.\n", nConsts ); } @@ -581,7 +625,7 @@ int Gia_ManFindEqualFlop( Vec_Ptr_t * vFlops, int iFlop, int nFlopWords ) SeeAlso [] ***********************************************************************/ -int * Gia_ManTerCreateMap( Gia_ManTer_t * p ) +int * Gia_ManTerCreateMap( Gia_ManTer_t * p, int fVerbose ) { int * pCi2Lit; Gia_Obj_t * pObj; @@ -605,7 +649,8 @@ int * Gia_ManTerCreateMap( Gia_ManTer_t * p ) CounterE++; } Vec_IntFree( vMapKtoI ); - printf( "Transformed %d const registers and %d equiv registers.\n", Counter0, CounterE ); + if ( fVerbose ) + printf( "Transforming %d const and %d equiv registers.\n", Counter0, CounterE ); return pCi2Lit; } @@ -624,13 +669,13 @@ int * Gia_ManTerCreateMap( Gia_ManTer_t * p ) Gia_ManTer_t * Gia_ManTerSimulate( Gia_Man_t * pAig, int fVerbose ) { Gia_ManTer_t * p; - unsigned * pState, * pLoop; + unsigned * pState, * pPrev, * pLoop; int i, Counter, clk, clkTotal = clock(); assert( Gia_ManRegNum(pAig) > 0 ); // create manager clk = clock(); p = Gia_ManTerCreate( pAig ); - if ( fVerbose ) + if ( 0 ) { printf( "Obj = %8d (%8d). F = %6d. ", pAig->nObjs, Gia_ManCiNum(pAig) + Gia_ManAndNum(pAig), p->pAig->nFront, @@ -648,6 +693,7 @@ Gia_ManTer_t * Gia_ManTerSimulate( Gia_Man_t * pAig, int fVerbose ) Gia_ManTerStateInsert( pState, p->nStateWords, p->pBins, p->nBins ); //Gia_ManTerStatePrint( pState, Gia_ManRegNum(pAig), 0 ); // perform simuluation till convergence + pPrev = NULL; for ( i = 0; ; i++ ) { Gia_ManTerSimulateRound( p ); @@ -663,15 +709,17 @@ Gia_ManTer_t * Gia_ManTerSimulate( Gia_Man_t * pAig, int fVerbose ) Gia_ManTerStateInsert( pState, p->nStateWords, p->pBins, p->nBins ); if ( i >= p->nIters && i % 10 == 0 ) { - Counter = Gia_ManTerRetire( p, pState ); - if ( fVerbose ) - printf( "Retired %d registers.\n", Counter ); + Counter = Gia_ManTerRetire( p, pState, pPrev ); +// Counter = Gia_ManTerRetire2( p, pState ); +// if ( fVerbose ) +// printf( "Retired %d registers.\n", Counter ); } + pPrev = pState; } if ( fVerbose ) { - printf( "Saturated after %d iterations. ", i+1 ); - ABC_PRT( "Total time", clock() - clkTotal ); + printf( "Ternary simulation saturated after %d iterations. ", i+1 ); + ABC_PRT( "Time", clock() - clkTotal ); } return p; } @@ -694,7 +742,7 @@ Gia_Man_t * Gia_ManReduceConst( Gia_Man_t * pAig, int fVerbose ) int * pCi2Lit; p = Gia_ManTerSimulate( pAig, fVerbose ); Gia_ManTerAnalyze( p ); - pCi2Lit = Gia_ManTerCreateMap( p ); + pCi2Lit = Gia_ManTerCreateMap( p, fVerbose ); Gia_ManTerDelete( p ); pNew = Gia_ManDupDfsCiMap( pAig, pCi2Lit, NULL ); ABC_FREE( pCi2Lit ); diff --git a/src/aig/gia/module.make b/src/aig/gia/module.make index 4410b497..d5ff628a 100644 --- a/src/aig/gia/module.make +++ b/src/aig/gia/module.make @@ -15,6 +15,7 @@ SRC += src/aig/gia/gia.c \ src/aig/gia/giaHash.c \ src/aig/gia/giaMan.c \ src/aig/gia/giaMap.c \ + src/aig/gia/giaRetime.c \ src/aig/gia/giaScl.c \ src/aig/gia/giaSim.c \ src/aig/gia/giaSort.c \ diff --git a/src/base/abci/abc.c b/src/base/abci/abc.c index 556828cb..cf574ecb 100644 --- a/src/base/abci/abc.c +++ b/src/base/abci/abc.c @@ -293,6 +293,8 @@ static int Abc_CommandAbc9Equiv ( Abc_Frame_t * pAbc, int argc, char ** arg static int Abc_CommandAbc9Semi ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandAbc9Times ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandAbc9Frames ( Abc_Frame_t * pAbc, int argc, char ** argv ); +static int Abc_CommandAbc9Retime ( Abc_Frame_t * pAbc, int argc, char ** argv ); +static int Abc_CommandAbc9Enable ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandAbc9Miter ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandAbc9Scl ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandAbc9Sat ( Abc_Frame_t * pAbc, int argc, char ** argv ); @@ -604,6 +606,8 @@ void Abc_Init( Abc_Frame_t * pAbc ) Cmd_CommandAdd( pAbc, "AIG", "&semi", Abc_CommandAbc9Semi, 0 ); Cmd_CommandAdd( pAbc, "AIG", "×", Abc_CommandAbc9Times, 0 ); Cmd_CommandAdd( pAbc, "AIG", "&frames", Abc_CommandAbc9Frames, 0 ); + Cmd_CommandAdd( pAbc, "AIG", "&retime", Abc_CommandAbc9Retime, 0 ); + Cmd_CommandAdd( pAbc, "AIG", "&enable", Abc_CommandAbc9Enable, 0 ); Cmd_CommandAdd( pAbc, "AIG", "&miter", Abc_CommandAbc9Miter, 0 ); Cmd_CommandAdd( pAbc, "AIG", "&scl", Abc_CommandAbc9Scl, 0 ); Cmd_CommandAdd( pAbc, "AIG", "&sat", Abc_CommandAbc9Sat, 0 ); @@ -22899,7 +22903,7 @@ int Abc_CommandAbc9Frames( Abc_Frame_t * pAbc, int argc, char ** argv ) } if ( pAbc->pAig == NULL ) { - printf( "Abc_CommandAbc9Times(): There is no AIG.\n" ); + printf( "Abc_CommandAbc9Frames(): There is no AIG.\n" ); return 1; } if ( nCofFanLit ) @@ -22931,6 +22935,121 @@ usage: SeeAlso [] ***********************************************************************/ +int Abc_CommandAbc9Retime( Abc_Frame_t * pAbc, int argc, char ** argv ) +{ + Gia_Man_t * pTemp; + int c; + int nMaxIters = 100; + int fVerbose = 0; + Extra_UtilGetoptReset(); + while ( ( c = Extra_UtilGetopt( argc, argv, "Nvh" ) ) != EOF ) + { + switch ( c ) + { + case 'N': + if ( globalUtilOptind >= argc ) + { + fprintf( stdout, "Command line switch \"-N\" should be followed by an integer.\n" ); + goto usage; + } + nMaxIters = atoi(argv[globalUtilOptind]); + globalUtilOptind++; + if ( nMaxIters < 0 ) + goto usage; + break; + case 'v': + fVerbose ^= 1; + break; + case 'h': + goto usage; + default: + goto usage; + } + } + if ( pAbc->pAig == NULL ) + { + printf( "Abc_CommandAbc9Retime(): There is no AIG.\n" ); + return 1; + } + pAbc->pAig = Gia_ManRetimeForward( pTemp = pAbc->pAig, nMaxIters, fVerbose ); + Gia_ManStop( pTemp ); + return 0; + +usage: + fprintf( stdout, "usage: &retime [-N <num>] [-vh]\n" ); + fprintf( stdout, "\t performs most-forward retiming\n" ); + fprintf( stdout, "\t-N num : the number of incremental iterations [default = %d]\n", nMaxIters ); + fprintf( stdout, "\t-v : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" ); + fprintf( stdout, "\t-h : print the command usage\n"); + return 1; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Abc_CommandAbc9Enable( Abc_Frame_t * pAbc, int argc, char ** argv ) +{ + Gia_Man_t * pTemp; + int c; + int fRemove = 0; + int fVerbose = 0; + Extra_UtilGetoptReset(); + while ( ( c = Extra_UtilGetopt( argc, argv, "rvh" ) ) != EOF ) + { + switch ( c ) + { + case 'r': + fRemove ^= 1; + break; + case 'v': + fVerbose ^= 1; + break; + case 'h': + goto usage; + default: + goto usage; + } + } + if ( pAbc->pAig == NULL ) + { + printf( "Abc_CommandAbc9Enable(): There is no AIG.\n" ); + return 1; + } + if ( fRemove ) + pAbc->pAig = Gia_ManRemoveEnables( pTemp = pAbc->pAig ); + else + pAbc->pAig = Gia_ManDupSelf( pTemp = pAbc->pAig ); + Gia_ManStop( pTemp ); + return 0; + +usage: + fprintf( stdout, "usage: &enable [-rvh]\n" ); + fprintf( stdout, "\t adds or removes flop enable signals\n" ); + fprintf( stdout, "\t-r : toggle adding vs. removing enables [default = %s]\n", fRemove? "remove": "add" ); + fprintf( stdout, "\t-v : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" ); + fprintf( stdout, "\t-h : print the command usage\n"); + return 1; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ int Abc_CommandAbc9Miter( Abc_Frame_t * pAbc, int argc, char ** argv ) { FILE * pFile; @@ -23047,7 +23166,10 @@ usage: int Abc_CommandAbc9Scl( Abc_Frame_t * pAbc, int argc, char ** argv ) { Gia_Man_t * pTemp; - int c, fConst = 1, fEquiv = 1, fVerbose = 1; + int c; + int fConst = 1; + int fEquiv = 1; + int fVerbose = 0; Extra_UtilGetoptReset(); while ( ( c = Extra_UtilGetopt( argc, argv, "cevh" ) ) != EOF ) { @@ -23071,9 +23193,6 @@ int Abc_CommandAbc9Scl( Abc_Frame_t * pAbc, int argc, char ** argv ) printf( "Abc_CommandAbc9Scl(): There is no AIG.\n" ); return 1; } - printf( "Implementation of this command is not finished.\n" ); - return 0; - pAbc->pAig = Gia_ManSeqStructSweep( pTemp = pAbc->pAig, fConst, fEquiv, fVerbose ); Gia_ManStop( pTemp ); return 0; @@ -23953,14 +24072,18 @@ int Abc_CommandAbc9Test( Abc_Frame_t * pAbc, int argc, char ** argv ) { Gia_Man_t * pTemp = NULL; int c, fVerbose = 0; + int fSwitch = 0; extern void Gia_SatSolveTest( Gia_Man_t * p ); extern void Cbs_ManSolveTest( Gia_Man_t * pGia ); Extra_UtilGetoptReset(); - while ( ( c = Extra_UtilGetopt( argc, argv, "vh" ) ) != EOF ) + while ( ( c = Extra_UtilGetopt( argc, argv, "svh" ) ) != EOF ) { switch ( c ) { + case 's': + fSwitch ^= 1; + break; case 'v': fVerbose ^= 1; break; @@ -23982,14 +24105,19 @@ int Abc_CommandAbc9Test( Abc_Frame_t * pAbc, int argc, char ** argv ) // Gia_SatSolveTest( pAbc->pAig ); // For_ManExperiment( pAbc->pAig, 20, 1, 1 ); // Gia_ManUnrollSpecial( pAbc->pAig, 5, 100, 1 ); -// pAbc->pAig = Gia_ManDupSelf( pTemp = pAbc->pAig ); -// Gia_ManStop( pTemp ); + + if ( fSwitch ) + pAbc->pAig = Gia_ManDupSelf( pTemp = pAbc->pAig ); + else + pAbc->pAig = Gia_ManRemoveEnables( pTemp = pAbc->pAig ); + Gia_ManStop( pTemp ); // Cbs_ManSolveTest( pAbc->pAig ); return 0; usage: - fprintf( stdout, "usage: &test [-vh]\n" ); + fprintf( stdout, "usage: &test [-svh]\n" ); fprintf( stdout, "\t testing various procedures\n" ); + fprintf( stdout, "\t-s : toggle enable (yes) vs. disable (no) [default = %s]\n", fSwitch? "yes": "no" ); fprintf( stdout, "\t-v : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" ); fprintf( stdout, "\t-h : print the command usage\n"); return 1; diff --git a/src/base/abci/abcPrint.c b/src/base/abci/abcPrint.c index 50b0c749..b869f067 100644 --- a/src/base/abci/abcPrint.c +++ b/src/base/abci/abcPrint.c @@ -174,20 +174,20 @@ void Abc_NtkPrintStats( FILE * pFile, Abc_Ntk_t * pNtk, int fFactored, int fSave fprintf( pFile, "%-13s:", pNtk->pName ); if ( Abc_NtkAssertNum(pNtk) ) - fprintf( pFile, " i/o/a = %5d/%5d/%5d", Abc_NtkPiNum(pNtk), Abc_NtkPoNum(pNtk), Abc_NtkAssertNum(pNtk) ); + fprintf( pFile, " i/o/a =%5d/%5d/%5d", Abc_NtkPiNum(pNtk), Abc_NtkPoNum(pNtk), Abc_NtkAssertNum(pNtk) ); else - fprintf( pFile, " i/o = %5d/%5d", Abc_NtkPiNum(pNtk), Abc_NtkPoNum(pNtk) ); - fprintf( pFile, " lat = %4d", Abc_NtkLatchNum(pNtk) ); + fprintf( pFile, " i/o =%5d/%5d", Abc_NtkPiNum(pNtk), Abc_NtkPoNum(pNtk) ); + fprintf( pFile, " lat =%5d", Abc_NtkLatchNum(pNtk) ); if ( Abc_NtkIsNetlist(pNtk) ) { - fprintf( pFile, " net = %5d", Abc_NtkNetNum(pNtk) ); - fprintf( pFile, " nd = %5d", Abc_NtkNodeNum(pNtk) ); - fprintf( pFile, " wbox = %3d", Abc_NtkWhiteboxNum(pNtk) ); - fprintf( pFile, " bbox = %3d", Abc_NtkBlackboxNum(pNtk) ); + fprintf( pFile, " net =%5d", Abc_NtkNetNum(pNtk) ); + fprintf( pFile, " nd =%5d", Abc_NtkNodeNum(pNtk) ); + fprintf( pFile, " wbox =%3d", Abc_NtkWhiteboxNum(pNtk) ); + fprintf( pFile, " bbox =%3d", Abc_NtkBlackboxNum(pNtk) ); } else if ( Abc_NtkIsStrash(pNtk) ) { - fprintf( pFile, " and = %5d", Abc_NtkNodeNum(pNtk) ); + fprintf( pFile, " and =%7d", Abc_NtkNodeNum(pNtk) ); if ( (Num = Abc_NtkGetChoiceNum(pNtk)) ) fprintf( pFile, " (choice = %d)", Num ); if ( fPrintMuxes ) @@ -201,8 +201,8 @@ void Abc_NtkPrintStats( FILE * pFile, Abc_Ntk_t * pNtk, int fFactored, int fSave } else { - fprintf( pFile, " nd = %5d", Abc_NtkNodeNum(pNtk) ); - fprintf( pFile, " edge = %6d", Abc_NtkGetTotalFanins(pNtk) ); + fprintf( pFile, " nd =%6d", Abc_NtkNodeNum(pNtk) ); + fprintf( pFile, " edge =%7d", Abc_NtkGetTotalFanins(pNtk) ); } if ( Abc_NtkIsStrash(pNtk) || Abc_NtkIsNetlist(pNtk) ) @@ -211,19 +211,19 @@ void Abc_NtkPrintStats( FILE * pFile, Abc_Ntk_t * pNtk, int fFactored, int fSave else if ( Abc_NtkHasSop(pNtk) ) { - fprintf( pFile, " cube = %5d", Abc_NtkGetCubeNum(pNtk) ); + fprintf( pFile, " cube =%6d", Abc_NtkGetCubeNum(pNtk) ); // fprintf( pFile, " lit(sop) = %5d", Abc_NtkGetLitNum(pNtk) ); if ( fFactored ) - fprintf( pFile, " lit(fac) = %5d", Abc_NtkGetLitFactNum(pNtk) ); + fprintf( pFile, " lit(fac) =%6d", Abc_NtkGetLitFactNum(pNtk) ); } else if ( Abc_NtkHasAig(pNtk) ) - fprintf( pFile, " aig = %5d", Abc_NtkGetAigNodeNum(pNtk) ); + fprintf( pFile, " aig =%6d", Abc_NtkGetAigNodeNum(pNtk) ); else if ( Abc_NtkHasBdd(pNtk) ) - fprintf( pFile, " bdd = %5d", Abc_NtkGetBddNodeNum(pNtk) ); + fprintf( pFile, " bdd =%6d", Abc_NtkGetBddNodeNum(pNtk) ); else if ( Abc_NtkHasMapping(pNtk) ) { - fprintf( pFile, " area = %5.2f", Abc_NtkGetMappedArea(pNtk) ); - fprintf( pFile, " delay = %5.2f", Abc_NtkDelayTrace(pNtk) ); + fprintf( pFile, " area =%5.2f", Abc_NtkGetMappedArea(pNtk) ); + fprintf( pFile, " delay =%5.2f", Abc_NtkDelayTrace(pNtk) ); } else if ( !Abc_NtkHasBlackbox(pNtk) ) { @@ -233,28 +233,28 @@ void Abc_NtkPrintStats( FILE * pFile, Abc_Ntk_t * pNtk, int fFactored, int fSave if ( Abc_NtkIsStrash(pNtk) ) { extern int Abc_NtkGetMultiRefNum( Abc_Ntk_t * pNtk ); - fprintf( pFile, " lev = %3d", Abc_AigLevel(pNtk) ); + fprintf( pFile, " lev =%3d", Abc_AigLevel(pNtk) ); // fprintf( pFile, " ff = %5d", Abc_NtkNodeNum(pNtk) + 2 * (Abc_NtkCoNum(pNtk)+Abc_NtkGetMultiRefNum(pNtk)) ); // fprintf( pFile, " var = %5d", Abc_NtkCiNum(pNtk) + Abc_NtkCoNum(pNtk)+Abc_NtkGetMultiRefNum(pNtk) ); } else - fprintf( pFile, " lev = %3d", Abc_NtkLevel(pNtk) ); + fprintf( pFile, " lev =%3d", Abc_NtkLevel(pNtk) ); if ( fUseLutLib && Abc_FrameReadLibLut() ) - fprintf( pFile, " delay = %5.2f", Abc_NtkDelayTraceLut(pNtk, 1) ); + fprintf( pFile, " delay =%5.2f", Abc_NtkDelayTraceLut(pNtk, 1) ); if ( fPower ) - fprintf( pFile, " power = %7.2f", Abc_NtkMfsTotalSwitching(pNtk) ); + fprintf( pFile, " power =%7.2f", Abc_NtkMfsTotalSwitching(pNtk) ); if ( fGlitch ) { extern float Abc_NtkMfsTotalGlitching( Abc_Ntk_t * pNtk ); if ( Abc_NtkIsLogic(pNtk) && Abc_NtkGetFaninMax(pNtk) <= 6 ) - fprintf( pFile, " glitch = %7.2f %%", Abc_NtkMfsTotalGlitching(pNtk) ); + fprintf( pFile, " glitch =%7.2f %%", Abc_NtkMfsTotalGlitching(pNtk) ); else printf( "\nCurrently computes glitching only for K-LUT networks with K <= 6." ); } fprintf( pFile, "\n" ); { - extern int Abc_NtkPrintSubraphSizes( Abc_Ntk_t * pNtk ); +// extern int Abc_NtkPrintSubraphSizes( Abc_Ntk_t * pNtk ); // Abc_NtkPrintSubraphSizes( pNtk ); } |