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author | Alan Mishchenko <alanmi@berkeley.edu> | 2006-07-23 08:01:00 -0700 |
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committer | Alan Mishchenko <alanmi@berkeley.edu> | 2006-07-23 08:01:00 -0700 |
commit | 7e8e03206c56e7cd9d0d9fbb447c785c400ff3ee (patch) | |
tree | 9d31935cf6c27b36c3ceb57cb5cffe2577a569a7 /src/base/abci | |
parent | 616bb095f10c24f1f720efe89b7f39c670d114a3 (diff) | |
download | abc-7e8e03206c56e7cd9d0d9fbb447c785c400ff3ee.tar.gz abc-7e8e03206c56e7cd9d0d9fbb447c785c400ff3ee.tar.bz2 abc-7e8e03206c56e7cd9d0d9fbb447c785c400ff3ee.zip |
Version abc60723
Diffstat (limited to 'src/base/abci')
-rw-r--r-- | src/base/abci/abc.c | 314 | ||||
-rw-r--r-- | src/base/abci/abcBalance.c | 3 | ||||
-rw-r--r-- | src/base/abci/abcCut.c | 120 | ||||
-rw-r--r-- | src/base/abci/abcFraig.c | 3 | ||||
-rw-r--r-- | src/base/abci/abcIvy.c | 378 | ||||
-rw-r--r-- | src/base/abci/abcPrint.c | 1 | ||||
-rw-r--r-- | src/base/abci/abcReconv.c | 1 |
7 files changed, 784 insertions, 36 deletions
diff --git a/src/base/abci/abc.c b/src/base/abci/abc.c index 02f74f30..eb98c722 100644 --- a/src/base/abci/abc.c +++ b/src/base/abci/abc.c @@ -88,6 +88,11 @@ static int Abc_CommandGen ( Abc_Frame_t * pAbc, int argc, char ** arg static int Abc_CommandXyz ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandTest ( Abc_Frame_t * pAbc, int argc, char ** argv ); +static int Abc_CommandIStrash ( Abc_Frame_t * pAbc, int argc, char ** argv ); +static int Abc_CommandICut ( Abc_Frame_t * pAbc, int argc, char ** argv ); +static int Abc_CommandIRewrite ( Abc_Frame_t * pAbc, int argc, char ** argv ); +static int Abc_CommandIResyn ( Abc_Frame_t * pAbc, int argc, char ** argv ); + static int Abc_CommandFraig ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandFraigTrust ( Abc_Frame_t * pAbc, int argc, char ** argv ); static int Abc_CommandFraigStore ( Abc_Frame_t * pAbc, int argc, char ** argv ); @@ -199,6 +204,11 @@ void Abc_Init( Abc_Frame_t * pAbc ) Cmd_CommandAdd( pAbc, "Various", "xyz", Abc_CommandXyz, 1 ); Cmd_CommandAdd( pAbc, "Various", "test", Abc_CommandTest, 0 ); + Cmd_CommandAdd( pAbc, "New AIG", "istrash", Abc_CommandIStrash, 1 ); + Cmd_CommandAdd( pAbc, "New AIG", "icut", Abc_CommandICut, 0 ); + Cmd_CommandAdd( pAbc, "New AIG", "irw", Abc_CommandIRewrite, 1 ); + Cmd_CommandAdd( pAbc, "New AIG", "iresyn", Abc_CommandIResyn, 1 ); + Cmd_CommandAdd( pAbc, "Fraiging", "fraig", Abc_CommandFraig, 1 ); Cmd_CommandAdd( pAbc, "Fraiging", "fraig_trust", Abc_CommandFraigTrust, 1 ); Cmd_CommandAdd( pAbc, "Fraiging", "fraig_store", Abc_CommandFraigStore, 0 ); @@ -4073,10 +4083,12 @@ int Abc_CommandCut( Abc_Frame_t * pAbc, int argc, char ** argv ) pParams->fDrop = 0; // drop cuts on the fly pParams->fDag = 0; // compute DAG cuts pParams->fTree = 0; // compute tree cuts + pParams->fGlobal = 0; // compute global cuts + pParams->fLocal = 0; // compute local cuts pParams->fFancy = 0; // compute something fancy pParams->fVerbose = 0; // the verbosiness flag Extra_UtilGetoptReset(); - while ( ( c = Extra_UtilGetopt( argc, argv, "KMtfdxyzvoh" ) ) != EOF ) + while ( ( c = Extra_UtilGetopt( argc, argv, "KMtfdxyglzvoh" ) ) != EOF ) { switch ( c ) { @@ -4117,6 +4129,12 @@ int Abc_CommandCut( Abc_Frame_t * pAbc, int argc, char ** argv ) case 'y': pParams->fTree ^= 1; break; + case 'g': + pParams->fGlobal ^= 1; + break; + case 'l': + pParams->fLocal ^= 1; + break; case 'z': pParams->fFancy ^= 1; break; @@ -4178,6 +4196,8 @@ usage: fprintf( pErr, "\t-d : toggle dropping when fanouts are done [default = %s]\n", pParams->fDrop? "yes": "no" ); fprintf( pErr, "\t-x : toggle computing only DAG cuts [default = %s]\n", pParams->fDag? "yes": "no" ); fprintf( pErr, "\t-y : toggle computing only tree cuts [default = %s]\n", pParams->fTree? "yes": "no" ); + fprintf( pErr, "\t-g : toggle computing only global cuts [default = %s]\n", pParams->fGlobal? "yes": "no" ); + fprintf( pErr, "\t-l : toggle computing only local cuts [default = %s]\n", pParams->fLocal? "yes": "no" ); fprintf( pErr, "\t-z : toggle fancy computations [default = %s]\n", pParams->fFancy? "yes": "no" ); fprintf( pErr, "\t-v : toggle printing verbose information [default = %s]\n", pParams->fVerbose? "yes": "no" ); fprintf( pErr, "\t-h : print the command usage\n"); @@ -4462,7 +4482,7 @@ int Abc_CommandXyz( Abc_Frame_t * pAbc, int argc, char ** argv ) int nPlaMax; int fVerbose; // extern Abc_Ntk_t * Abc_NtkXyz( Abc_Ntk_t * pNtk, int nPlaMax, bool fUseEsop, bool fUseSop, bool fUseInvs, bool fVerbose ); - extern void * Abc_NtkPlayer( void * pNtk, int nLutMax, int nPlaMax, int fVerbose ); + extern void * Abc_NtkPlayer( void * pNtk, int nLutMax, int nPlaMax, int fVerbose ); pNtk = Abc_FrameReadNtk(pAbc); pOut = Abc_FrameReadOut(pAbc); @@ -4647,11 +4667,11 @@ int Abc_CommandTest( Abc_Frame_t * pAbc, int argc, char ** argv ) // Ivy_TruthTest(); - Ivy_TruthEstimateNodesTest(); +// Ivy_TruthEstimateNodesTest(); -// pNtkRes = Abc_NtkIvy( pNtk ); + pNtkRes = Abc_NtkIvy( pNtk ); // pNtkRes = Abc_NtkPlayer( pNtk, nLevels, 0 ); - pNtkRes = NULL; +// pNtkRes = NULL; if ( pNtkRes == NULL ) { fprintf( pErr, "Command has failed.\n" ); @@ -4670,6 +4690,290 @@ usage: } +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Abc_CommandIStrash( Abc_Frame_t * pAbc, int argc, char ** argv ) +{ + FILE * pOut, * pErr; + Abc_Ntk_t * pNtk, * pNtkRes; + int c; + extern Abc_Ntk_t * Abc_NtkIvyStrash( Abc_Ntk_t * pNtk ); + + pNtk = Abc_FrameReadNtk(pAbc); + pOut = Abc_FrameReadOut(pAbc); + pErr = Abc_FrameReadErr(pAbc); + + // set defaults + Extra_UtilGetoptReset(); + while ( ( c = Extra_UtilGetopt( argc, argv, "h" ) ) != EOF ) + { + switch ( c ) + { + case 'h': + goto usage; + default: + goto usage; + } + } + if ( pNtk == NULL ) + { + fprintf( pErr, "Empty network.\n" ); + return 1; + } + if ( Abc_NtkIsSeq(pNtk) ) + { + fprintf( pErr, "Only works for non-sequential networks.\n" ); + return 1; + } + if ( !Abc_NtkIsStrash(pNtk) ) + { + fprintf( pErr, "Only works for combinatinally strashed AIG networks.\n" ); + return 1; + } + + pNtkRes = Abc_NtkIvyStrash( pNtk ); + if ( pNtkRes == NULL ) + { + fprintf( pErr, "Command has failed.\n" ); + return 1; + } + // replace the current network + Abc_FrameReplaceCurrentNetwork( pAbc, pNtkRes ); + return 0; + +usage: + fprintf( pErr, "usage: istrash [-h]\n" ); + fprintf( pErr, "\t perform sequential structural hashing\n" ); + fprintf( pErr, "\t-h : print the command usage\n"); + return 1; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Abc_CommandICut( Abc_Frame_t * pAbc, int argc, char ** argv ) +{ + FILE * pOut, * pErr; + Abc_Ntk_t * pNtk; + int c, nInputs; + extern void Abc_NtkIvyCuts( Abc_Ntk_t * pNtk, int nInputs ); + + pNtk = Abc_FrameReadNtk(pAbc); + pOut = Abc_FrameReadOut(pAbc); + pErr = Abc_FrameReadErr(pAbc); + + // set defaults + nInputs = 5; + Extra_UtilGetoptReset(); + while ( ( c = Extra_UtilGetopt( argc, argv, "Kh" ) ) != EOF ) + { + switch ( c ) + { + case 'K': + if ( globalUtilOptind >= argc ) + { + fprintf( pErr, "Command line switch \"-K\" should be followed by an integer.\n" ); + goto usage; + } + nInputs = atoi(argv[globalUtilOptind]); + globalUtilOptind++; + if ( nInputs < 0 ) + goto usage; + break; + case 'h': + goto usage; + default: + goto usage; + } + } + if ( pNtk == NULL ) + { + fprintf( pErr, "Empty network.\n" ); + return 1; + } + if ( Abc_NtkIsSeq(pNtk) ) + { + fprintf( pErr, "Only works for non-sequential networks.\n" ); + return 1; + } + + Abc_NtkIvyCuts( pNtk, nInputs ); + return 0; + +usage: + fprintf( pErr, "usage: icut [-K num] [-h]\n" ); + fprintf( pErr, "\t computes sequential cuts of the given size\n" ); + fprintf( pErr, "\t-K num : the number of cut inputs (2 <= num <= 6) [default = %d]\n", nInputs ); + fprintf( pErr, "\t-h : print the command usage\n"); + return 1; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Abc_CommandIRewrite( Abc_Frame_t * pAbc, int argc, char ** argv ) +{ + FILE * pOut, * pErr; + Abc_Ntk_t * pNtk, * pNtkRes; + int c, fUpdateLevel, fUseZeroCost, fVerbose; + extern Abc_Ntk_t * Abc_NtkIvyRewrite( Abc_Ntk_t * pNtk, int fUpdateLevel, int fUseZeroCost, int fVerbose ); + + pNtk = Abc_FrameReadNtk(pAbc); + pOut = Abc_FrameReadOut(pAbc); + pErr = Abc_FrameReadErr(pAbc); + + // set defaults + fUpdateLevel = 1; + fUseZeroCost = 0; + fVerbose = 0; + Extra_UtilGetoptReset(); + while ( ( c = Extra_UtilGetopt( argc, argv, "lzvh" ) ) != EOF ) + { + switch ( c ) + { + case 'l': + fUpdateLevel ^= 1; + break; + case 'z': + fUseZeroCost ^= 1; + break; + case 'v': + fVerbose ^= 1; + break; + case 'h': + goto usage; + default: + goto usage; + } + } + if ( pNtk == NULL ) + { + fprintf( pErr, "Empty network.\n" ); + return 1; + } + if ( Abc_NtkIsSeq(pNtk) ) + { + fprintf( pErr, "Only works for non-sequential networks.\n" ); + return 1; + } + + pNtkRes = Abc_NtkIvyRewrite( pNtk, fUpdateLevel, fUseZeroCost, fVerbose ); + if ( pNtkRes == NULL ) + { + fprintf( pErr, "Command has failed.\n" ); + return 1; + } + // replace the current network + Abc_FrameReplaceCurrentNetwork( pAbc, pNtkRes ); + return 0; + +usage: + fprintf( pErr, "usage: irw [-lzvh]\n" ); + fprintf( pErr, "\t perform combinational AIG rewriting\n" ); + fprintf( pErr, "\t-l : toggle preserving the number of levels [default = %s]\n", fUpdateLevel? "yes": "no" ); + fprintf( pErr, "\t-z : toggle using zero-cost replacements [default = %s]\n", fUseZeroCost? "yes": "no" ); + fprintf( pErr, "\t-v : toggle verbose printout [default = %s]\n", fVerbose? "yes": "no" ); + fprintf( pErr, "\t-h : print the command usage\n"); + return 1; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Abc_CommandIResyn( Abc_Frame_t * pAbc, int argc, char ** argv ) +{ + FILE * pOut, * pErr; + Abc_Ntk_t * pNtk, * pNtkRes; + int c, fUpdateLevel, fVerbose; + extern Abc_Ntk_t * Abc_NtkIvyResyn( Abc_Ntk_t * pNtk, int fUpdateLevel, int fVerbose ); + + pNtk = Abc_FrameReadNtk(pAbc); + pOut = Abc_FrameReadOut(pAbc); + pErr = Abc_FrameReadErr(pAbc); + + // set defaults + fUpdateLevel = 1; + fVerbose = 0; + Extra_UtilGetoptReset(); + while ( ( c = Extra_UtilGetopt( argc, argv, "lzvh" ) ) != EOF ) + { + switch ( c ) + { + case 'l': + fUpdateLevel ^= 1; + break; + case 'v': + fVerbose ^= 1; + break; + case 'h': + goto usage; + default: + goto usage; + } + } + if ( pNtk == NULL ) + { + fprintf( pErr, "Empty network.\n" ); + return 1; + } + if ( Abc_NtkIsSeq(pNtk) ) + { + fprintf( pErr, "Only works for non-sequential networks.\n" ); + return 1; + } + + pNtkRes = Abc_NtkIvyResyn( pNtk, fUpdateLevel, fVerbose ); + if ( pNtkRes == NULL ) + { + fprintf( pErr, "Command has failed.\n" ); + return 1; + } + // replace the current network + Abc_FrameReplaceCurrentNetwork( pAbc, pNtkRes ); + return 0; + +usage: + fprintf( pErr, "usage: iresyn [-lvh]\n" ); + fprintf( pErr, "\t performs combinational resynthesis\n" ); + fprintf( pErr, "\t-l : toggle preserving the number of levels [default = %s]\n", fUpdateLevel? "yes": "no" ); + fprintf( pErr, "\t-v : toggle verbose printout [default = %s]\n", fVerbose? "yes": "no" ); + fprintf( pErr, "\t-h : print the command usage\n"); + return 1; +} + /**Function************************************************************* diff --git a/src/base/abci/abcBalance.c b/src/base/abci/abcBalance.c index 9e9212aa..389a7977 100644 --- a/src/base/abci/abcBalance.c +++ b/src/base/abci/abcBalance.c @@ -265,6 +265,9 @@ Abc_Obj_t * Abc_NodeBalance_rec( Abc_Ntk_t * pNtkNew, Abc_Obj_t * pNodeOld, Vec_ pNodeOld->pCopy = vSuper->pArray[0]; Abc_HManAddProto( pNodeOld->pCopy, pNodeOld ); vSuper->nSize = 0; +// if ( Abc_ObjRegular(pNodeOld->pCopy) == Abc_NtkConst1(pNtkNew) ) +// printf( "Constant node\n" ); +// assert( pNodeOld->Level >= Abc_ObjRegular(pNodeOld->pCopy)->Level ); return pNodeOld->pCopy; } diff --git a/src/base/abci/abcCut.c b/src/base/abci/abcCut.c index 135e35d2..00045bf4 100644 --- a/src/base/abci/abcCut.c +++ b/src/base/abci/abcCut.c @@ -29,9 +29,10 @@ static void Abc_NtkPrintCuts( void * p, Abc_Ntk_t * pNtk, int fSeq ); static void Abc_NtkPrintCuts_( void * p, Abc_Ntk_t * pNtk, int fSeq ); - extern int nTotal, nGood, nEqual; +static Vec_Int_t * Abc_NtkGetNodeAttributes( Abc_Ntk_t * pNtk ); + //////////////////////////////////////////////////////////////////////// /// FUNCTION DEFINITIONS /// //////////////////////////////////////////////////////////////////////// @@ -66,6 +67,13 @@ Cut_Man_t * Abc_NtkCuts( Abc_Ntk_t * pNtk, Cut_Params_t * pParams ) // start the manager pParams->nIdsMax = Abc_NtkObjNumMax( pNtk ); p = Cut_ManStart( pParams ); + // compute node attributes if local or global cuts are requested + if ( pParams->fGlobal || pParams->fLocal ) + { + extern Vec_Int_t * Abc_NtkGetNodeAttributes( Abc_Ntk_t * pNtk ); + Cut_ManSetNodeAttrs( p, Abc_NtkGetNodeAttributes(pNtk) ); + } + // prepare for cut dropping if ( pParams->fDrop ) Cut_ManSetFanoutCounts( p, Abc_NtkFanoutCounts(pNtk) ); // set cuts for PIs @@ -316,6 +324,8 @@ void * Abc_NodeGetCuts( void * p, Abc_Obj_t * pObj, int fDag, int fTree ) int fDagNode, fTriv, TreeCode = 0; // assert( Abc_NtkIsStrash(pObj->pNtk) ); assert( Abc_ObjFaninNum(pObj) == 2 ); + + // check if the node is a DAG node fDagNode = (Abc_ObjFanoutNum(pObj) > 1 && !Abc_NodeIsMuxControlType(pObj)); // increment the counter of DAG nodes @@ -330,6 +340,25 @@ void * Abc_NodeGetCuts( void * p, Abc_Obj_t * pObj, int fDag, int fTree ) pFanin = Abc_ObjFanin1(pObj); TreeCode |= ((Abc_ObjFanoutNum(pFanin) > 1 && !Abc_NodeIsMuxControlType(pFanin)) << 1); } + + + // changes due to the global/local cut computation + { + Cut_Params_t * pParams = Cut_ManReadParams(p); + if ( pParams->fLocal ) + { + Vec_Int_t * vNodeAttrs = Cut_ManReadNodeAttrs(p); + fDagNode = Vec_IntEntry( vNodeAttrs, pObj->Id ); + if ( fDagNode ) Cut_ManIncrementDagNodes( p ); +// fTriv = fDagNode || !pParams->fGlobal; + fTriv = !Vec_IntEntry( vNodeAttrs, pObj->Id ); + TreeCode = 0; + pFanin = Abc_ObjFanin0(pObj); + TreeCode |= Vec_IntEntry( vNodeAttrs, pFanin->Id ); + pFanin = Abc_ObjFanin1(pObj); + TreeCode |= (Vec_IntEntry( vNodeAttrs, pFanin->Id ) << 1); + } + } return Cut_NodeComputeCuts( p, pObj->Id, Abc_ObjFaninId0(pObj), Abc_ObjFaninId1(pObj), Abc_ObjFaninC0(pObj), Abc_ObjFaninC1(pObj), fTriv, TreeCode ); } @@ -436,6 +465,95 @@ void Abc_NtkPrintCuts_( void * p, Abc_Ntk_t * pNtk, int fSeq ) Cut_CutPrintList( pList, fSeq ); } + + + +/**Function************************************************************* + + Synopsis [Assigns global attributes randomly.] + + Description [Old code.] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Vec_Int_t * Abc_NtkGetNodeAttributes2( Abc_Ntk_t * pNtk ) +{ + Vec_Int_t * vAttrs; + Abc_Obj_t * pObj; + int i; + + vAttrs = Vec_IntStart( Abc_NtkObjNumMax(pNtk) + 1 ); +// Abc_NtkForEachCi( pNtk, pObj, i ) +// Vec_IntWriteEntry( vAttrs, pObj->Id, 1 ); + Abc_NtkForEachObj( pNtk, pObj, i ) + { +// if ( Abc_ObjIsNode(pObj) && (rand() % 4 == 0) ) + if ( Abc_ObjIsNode(pObj) && Abc_ObjFanoutNum(pObj) > 1 && !Abc_NodeIsMuxControlType(pObj) && (rand() % 3 == 0) ) + Vec_IntWriteEntry( vAttrs, pObj->Id, 1 ); + } + return vAttrs; +} + +/**Function************************************************************* + + Synopsis [Assigns global attributes randomly.] + + Description [Old code.] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Abc_NtkSubDagSize_rec( Abc_Obj_t * pObj, Vec_Int_t * vAttrs ) +{ + if ( Abc_NodeIsTravIdCurrent(pObj) ) + return 0; + Abc_NodeSetTravIdCurrent(pObj); + if ( Vec_IntEntry( vAttrs, pObj->Id ) ) + return 0; + if ( Abc_ObjIsCi(pObj) ) + return 1; + assert( Abc_ObjFaninNum(pObj) == 2 ); + return 1 + Abc_NtkSubDagSize_rec(Abc_ObjFanin0(pObj), vAttrs) + + Abc_NtkSubDagSize_rec(Abc_ObjFanin1(pObj), vAttrs); +} + +/**Function************************************************************* + + Synopsis [Assigns global attributes randomly.] + + Description [Old code.] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Vec_Int_t * Abc_NtkGetNodeAttributes( Abc_Ntk_t * pNtk ) +{ + Vec_Int_t * vAttrs; + Abc_Obj_t * pObj; + int i, nSize; + assert( Abc_NtkIsDfsOrdered(pNtk) ); + vAttrs = Vec_IntStart( Abc_NtkObjNumMax(pNtk) + 1 ); + Abc_NtkForEachObj( pNtk, pObj, i ) + { + // skip no-nodes and nodes without fanouts + if ( pObj->Id == 0 || !(Abc_ObjIsNode(pObj) && Abc_ObjFanoutNum(pObj) > 1 && !Abc_NodeIsMuxControlType(pObj)) ) + continue; + // the node has more than one fanout - count its sub-DAG size + Abc_NtkIncrementTravId( pNtk ); + nSize = Abc_NtkSubDagSize_rec( pObj, vAttrs ); + if ( nSize > 15 ) + Vec_IntWriteEntry( vAttrs, pObj->Id, 1 ); + } + return vAttrs; +} + //////////////////////////////////////////////////////////////////////// /// END OF FILE /// //////////////////////////////////////////////////////////////////////// diff --git a/src/base/abci/abcFraig.c b/src/base/abci/abcFraig.c index c22532e9..49b24be8 100644 --- a/src/base/abci/abcFraig.c +++ b/src/base/abci/abcFraig.c @@ -62,6 +62,9 @@ Abc_Ntk_t * Abc_NtkFraig( Abc_Ntk_t * pNtk, void * pParams, int fAllNodes, int f fExdc = 0, printf( "Warning: Networks has no EXDC.\n" ); // perform fraiging pMan = Abc_NtkToFraig( pNtk, pParams, fAllNodes, fExdc ); + // add algebraic choices + if ( pPars->fChoicing ) + Fraig_ManAddChoices( pMan, 0, 6 ); // prove the miter if asked to if ( pPars->fTryProve ) Fraig_ManProveMiter( pMan ); diff --git a/src/base/abci/abcIvy.c b/src/base/abci/abcIvy.c index f69982a8..1ef84c20 100644 --- a/src/base/abci/abcIvy.c +++ b/src/base/abci/abcIvy.c @@ -27,6 +27,7 @@ //////////////////////////////////////////////////////////////////////// static Abc_Ntk_t * Abc_NtkFromAig( Abc_Ntk_t * pNtkOld, Ivy_Man_t * pMan ); +static Abc_Ntk_t * Abc_NtkFromAigSeq( Abc_Ntk_t * pNtkOld, Ivy_Man_t * pMan ); static Ivy_Man_t * Abc_NtkToAig( Abc_Ntk_t * pNtkOld ); static void Abc_NtkStrashPerformAig( Abc_Ntk_t * pNtk, Ivy_Man_t * pMan ); @@ -36,12 +37,210 @@ static Ivy_Obj_t * Abc_NodeStrashAigExorAig( Ivy_Man_t * pMan, Abc_Obj_t * pNod static Ivy_Obj_t * Abc_NodeStrashAigFactorAig( Ivy_Man_t * pMan, Abc_Obj_t * pNode, char * pSop ); extern char * Mio_GateReadSop( void * pGate ); +typedef int Abc_Edge_t; +static inline Abc_Edge_t Abc_EdgeCreate( int Id, int fCompl ) { return (Id << 1) | fCompl; } +static inline int Abc_EdgeId( Abc_Edge_t Edge ) { return Edge >> 1; } +static inline int Abc_EdgeIsComplement( Abc_Edge_t Edge ) { return Edge & 1; } +static inline Abc_Edge_t Abc_EdgeRegular( Abc_Edge_t Edge ) { return (Edge >> 1) << 1; } +static inline Abc_Edge_t Abc_EdgeNot( Abc_Edge_t Edge ) { return Edge ^ 1; } +static inline Abc_Edge_t Abc_EdgeNotCond( Abc_Edge_t Edge, int fCond ) { return Edge ^ fCond; } +static inline Abc_Edge_t Abc_EdgeFromNode( Abc_Obj_t * pNode ) { return Abc_EdgeCreate( Abc_ObjRegular(pNode)->Id, Abc_ObjIsComplement(pNode) ); } +static inline Abc_Obj_t * Abc_EdgeToNode( Abc_Ntk_t * p, Abc_Edge_t Edge ) { return Abc_ObjNotCond( Abc_NtkObj(p, Abc_EdgeId(Edge)), Abc_EdgeIsComplement(Edge) ); } + +static inline Abc_Obj_t * Abc_ObjFanin0Ivy( Abc_Ntk_t * p, Ivy_Obj_t * pObj ) { return Abc_ObjNotCond( Abc_EdgeToNode(p, Ivy_ObjFanin0(pObj)->TravId), Ivy_ObjFaninC0(pObj) ); } +static inline Abc_Obj_t * Abc_ObjFanin1Ivy( Abc_Ntk_t * p, Ivy_Obj_t * pObj ) { return Abc_ObjNotCond( Abc_EdgeToNode(p, Ivy_ObjFanin1(pObj)->TravId), Ivy_ObjFaninC1(pObj) ); } + +static int * Abc_NtkCollectLatchValues( Abc_Ntk_t * pNtk ); + //////////////////////////////////////////////////////////////////////// /// FUNCTION DEFINITIONS /// //////////////////////////////////////////////////////////////////////// /**Function************************************************************* + Synopsis [Prepares the IVY package.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Ivy_Man_t * Abc_NtkIvyBefore( Abc_Ntk_t * pNtk, int fSeq ) +{ + Ivy_Man_t * pMan; + int fCleanup = 1; + assert( !Abc_NtkIsNetlist(pNtk) ); + assert( !Abc_NtkIsSeq(pNtk) ); + if ( Abc_NtkIsBddLogic(pNtk) ) + { + if ( !Abc_NtkBddToSop(pNtk, 0) ) + { + printf( "Converting to SOPs has failed.\n" ); + return NULL; + } + } + if ( Abc_NtkCountSelfFeedLatches(pNtk) ) + { + printf( "Warning: The network has %d self-feeding latches. Quitting.\n", Abc_NtkCountSelfFeedLatches(pNtk) ); + return NULL; + } + // print warning about choice nodes + if ( Abc_NtkGetChoiceNum( pNtk ) ) + printf( "Warning: The choice nodes in the initial AIG are removed by strashing.\n" ); + // convert to the AIG manager + pMan = Abc_NtkToAig( pNtk ); + if ( !Ivy_ManCheck( pMan ) ) + { + printf( "AIG check has failed.\n" ); + Ivy_ManStop( pMan ); + return NULL; + } +// Ivy_ManPrintStats( pMan ); + if ( fSeq ) + { + int nLatches = Abc_NtkLatchNum(pNtk); + int * pInit = Abc_NtkCollectLatchValues( pNtk ); + Ivy_ManMakeSeq( pMan, nLatches, pInit ); + FREE( pInit ); +// Ivy_ManPrintStats( pMan ); + } + return pMan; +} + +/**Function************************************************************* + + Synopsis [Prepares the IVY package.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Abc_Ntk_t * Abc_NtkIvyAfter( Abc_Ntk_t * pNtk, Ivy_Man_t * pMan, int fSeq ) +{ + Abc_Ntk_t * pNtkAig; + int nNodes, fCleanup = 1; + // convert from the AIG manager + if ( fSeq ) + pNtkAig = Abc_NtkFromAigSeq( pNtk, pMan ); + else + pNtkAig = Abc_NtkFromAig( pNtk, pMan ); + // report the cleanup results + if ( fCleanup && (nNodes = Abc_AigCleanup(pNtkAig->pManFunc)) ) + printf( "Warning: AIG cleanup removed %d nodes (this is not a bug).\n", nNodes ); + // duplicate EXDC + if ( pNtk->pExdc ) + pNtkAig->pExdc = Abc_NtkDup( pNtk->pExdc ); + // make sure everything is okay + if ( !Abc_NtkCheck( pNtkAig ) ) + { + printf( "Abc_NtkStrash: The network check has failed.\n" ); + Abc_NtkDelete( pNtkAig ); + return NULL; + } + return pNtkAig; +} + +/**Function************************************************************* + + Synopsis [Gives the current ABC network to AIG manager for processing.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Abc_Ntk_t * Abc_NtkIvyStrash( Abc_Ntk_t * pNtk ) +{ + Abc_Ntk_t * pNtkAig; + Ivy_Man_t * pMan; + pMan = Abc_NtkIvyBefore( pNtk, 1 ); + if ( pMan == NULL ) + return NULL; + pNtkAig = Abc_NtkIvyAfter( pNtk, pMan, 1 ); + Ivy_ManStop( pMan ); + return pNtkAig; +} + +/**Function************************************************************* + + Synopsis [Gives the current ABC network to AIG manager for processing.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Abc_NtkIvyCuts( Abc_Ntk_t * pNtk, int nInputs ) +{ + extern void Ivy_CutComputeAll( Ivy_Man_t * p, int nInputs ); + Ivy_Man_t * pMan; + pMan = Abc_NtkIvyBefore( pNtk, 1 ); + if ( pMan == NULL ) + return; + Ivy_CutComputeAll( pMan, nInputs ); + Ivy_ManStop( pMan ); +} + +/**Function************************************************************* + + Synopsis [Gives the current ABC network to AIG manager for processing.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Abc_Ntk_t * Abc_NtkIvyRewrite( Abc_Ntk_t * pNtk, int fUpdateLevel, int fUseZeroCost, int fVerbose ) +{ + Abc_Ntk_t * pNtkAig; + Ivy_Man_t * pMan; + pMan = Abc_NtkIvyBefore( pNtk, 0 ); + if ( pMan == NULL ) + return NULL; + Ivy_ManRewritePre( pMan, fUpdateLevel, fUseZeroCost, fVerbose ); + pNtkAig = Abc_NtkIvyAfter( pNtk, pMan, 0 ); + Ivy_ManStop( pMan ); + return pNtkAig; +} + +/**Function************************************************************* + + Synopsis [Gives the current ABC network to AIG manager for processing.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Abc_Ntk_t * Abc_NtkIvyResyn( Abc_Ntk_t * pNtk, int fUpdateLevel, int fVerbose ) +{ + Abc_Ntk_t * pNtkAig; + Ivy_Man_t * pMan, * pTemp; + pMan = Abc_NtkIvyBefore( pNtk, 0 ); + if ( pMan == NULL ) + return NULL; + pMan = Ivy_ManResyn( pTemp = pMan, fUpdateLevel, fVerbose ); + Ivy_ManStop( pTemp ); + pNtkAig = Abc_NtkIvyAfter( pNtk, pMan, 0 ); + Ivy_ManStop( pMan ); + return pNtkAig; +} + +/**Function************************************************************* + Synopsis [Gives the current ABC network to AIG manager for processing.] Description [] @@ -53,10 +252,12 @@ extern char * Mio_GateReadSop( void * pGate ); ***********************************************************************/ Abc_Ntk_t * Abc_NtkIvy( Abc_Ntk_t * pNtk ) { - Ivy_Man_t * pMan, * pTemp = NULL; Abc_Ntk_t * pNtkAig; + Ivy_Man_t * pMan, * pTemp; int fCleanup = 1; int nNodes; + int nLatches = Abc_NtkLatchNum(pNtk); + int * pInit = Abc_NtkCollectLatchValues( pNtk ); assert( !Abc_NtkIsNetlist(pNtk) ); assert( !Abc_NtkIsSeq(pNtk) ); @@ -64,10 +265,17 @@ Abc_Ntk_t * Abc_NtkIvy( Abc_Ntk_t * pNtk ) { if ( !Abc_NtkBddToSop(pNtk, 0) ) { + FREE( pInit ); printf( "Converting to SOPs has failed.\n" ); return NULL; } } + if ( Abc_NtkCountSelfFeedLatches(pNtk) ) + { + printf( "Warning: The network has %d self-feeding latches. Quitting.\n", Abc_NtkCountSelfFeedLatches(pNtk) ); + return NULL; + } + // print warning about choice nodes if ( Abc_NtkGetChoiceNum( pNtk ) ) printf( "Warning: The choice nodes in the initial AIG are removed by strashing.\n" ); @@ -76,6 +284,7 @@ Abc_Ntk_t * Abc_NtkIvy( Abc_Ntk_t * pNtk ) pMan = Abc_NtkToAig( pNtk ); if ( !Ivy_ManCheck( pMan ) ) { + FREE( pInit ); printf( "AIG check has failed.\n" ); Ivy_ManStop( pMan ); return NULL; @@ -92,21 +301,27 @@ Abc_Ntk_t * Abc_NtkIvy( Abc_Ntk_t * pNtk ) // Ivy_ManTestCutsBool( pMan ); // Ivy_ManRewriteAlg( pMan, 1, 1 ); -// pMan = Ivy_ManResyn( pTemp = pMan, 1 ); +// pMan = Ivy_ManResyn( pTemp = pMan, 1, 0 ); // Ivy_ManStop( pTemp ); -// Ivy_ManTestCutsAll( pMan ); + Ivy_ManTestCutsAll( pMan ); // Ivy_ManPrintStats( pMan ); // Ivy_ManPrintStats( pMan ); // Ivy_ManRewritePre( pMan, 1, 0, 0 ); // Ivy_ManPrintStats( pMan ); +// printf( "\n" ); + +// Ivy_ManPrintStats( pMan ); +// Ivy_ManMakeSeq( pMan, nLatches, pInit ); +// Ivy_ManPrintStats( pMan ); // Ivy_ManRequiredLevels( pMan ); // convert from the AIG manager pNtkAig = Abc_NtkFromAig( pNtk, pMan ); +// pNtkAig = Abc_NtkFromAigSeq( pNtk, pMan ); Ivy_ManStop( pMan ); // report the cleanup results @@ -118,13 +333,18 @@ Abc_Ntk_t * Abc_NtkIvy( Abc_Ntk_t * pNtk ) // make sure everything is okay if ( !Abc_NtkCheck( pNtkAig ) ) { + FREE( pInit ); printf( "Abc_NtkStrash: The network check has failed.\n" ); Abc_NtkDelete( pNtkAig ); return NULL; } + + FREE( pInit ); return pNtkAig; } + + /**Function************************************************************* Synopsis [Converts the network from the AIG manager into ABC.] @@ -142,47 +362,119 @@ Abc_Ntk_t * Abc_NtkFromAig( Abc_Ntk_t * pNtkOld, Ivy_Man_t * pMan ) Abc_Ntk_t * pNtk; Abc_Obj_t * pObj, * pObjNew, * pFaninNew, * pFaninNew0, * pFaninNew1; Ivy_Obj_t * pNode; - int i, Fanin; + int i; // perform strashing pNtk = Abc_NtkStartFrom( pNtkOld, ABC_NTK_STRASH, ABC_FUNC_AIG ); // transfer the pointers to the basic nodes - Ivy_ManConst1(pMan)->TravId = (Abc_NtkConst1(pNtk)->Id << 1); + Ivy_ManConst1(pMan)->TravId = Abc_EdgeFromNode( Abc_NtkConst1(pNtk) ); Abc_NtkForEachCi( pNtkOld, pObj, i ) - Ivy_ManPi(pMan, i)->TravId = (pObj->pCopy->Id << 1); + Ivy_ManPi(pMan, i)->TravId = Abc_EdgeFromNode( pObj->pCopy ); // rebuild the AIG vNodes = Ivy_ManDfs( pMan ); Ivy_ManForEachNodeVec( pMan, vNodes, pNode, i ) { // add the first fanins - Fanin = Ivy_ObjFanin0(pNode)->TravId; - pFaninNew0 = Abc_NtkObj( pNtk, Fanin >> 1 ); - pFaninNew0 = Abc_ObjNotCond( pFaninNew0, Ivy_ObjFaninC0(pNode) ^ (Fanin&1) ); + pFaninNew0 = Abc_ObjFanin0Ivy( pNtk, pNode ); if ( Ivy_ObjIsBuf(pNode) ) { - pNode->TravId = (Abc_ObjRegular(pFaninNew0)->Id << 1) | Abc_ObjIsComplement(pFaninNew0); + pNode->TravId = Abc_EdgeFromNode( pFaninNew0 ); continue; } // add the first second - Fanin = Ivy_ObjFanin1(pNode)->TravId; - pFaninNew1 = Abc_NtkObj( pNtk, Fanin >> 1 ); - pFaninNew1 = Abc_ObjNotCond( pFaninNew1, Ivy_ObjFaninC1(pNode) ^ (Fanin&1) ); + pFaninNew1 = Abc_ObjFanin1Ivy( pNtk, pNode ); // create the new node if ( Ivy_ObjIsExor(pNode) ) pObjNew = Abc_AigXor( pNtk->pManFunc, pFaninNew0, pFaninNew1 ); else pObjNew = Abc_AigAnd( pNtk->pManFunc, pFaninNew0, pFaninNew1 ); - pNode->TravId = (Abc_ObjRegular(pObjNew)->Id << 1) | Abc_ObjIsComplement(pObjNew); + pNode->TravId = Abc_EdgeFromNode( pObjNew ); } - Vec_IntFree( vNodes ); // connect the PO nodes Abc_NtkForEachCo( pNtkOld, pObj, i ) { - pNode = Ivy_ManPo(pMan, i); - Fanin = Ivy_ObjFanin0(pNode)->TravId; - pFaninNew = Abc_NtkObj( pNtk, Fanin >> 1 ); - pFaninNew = Abc_ObjNotCond( pFaninNew, Ivy_ObjFaninC0(pNode) ^ (Fanin&1) ); + pFaninNew = Abc_ObjFanin0Ivy( pNtk, Ivy_ManPo(pMan, i) ); Abc_ObjAddFanin( pObj->pCopy, pFaninNew ); } + Vec_IntFree( vNodes ); + if ( !Abc_NtkCheck( pNtk ) ) + fprintf( stdout, "Abc_NtkFromAig(): Network check has failed.\n" ); + return pNtk; +} + +/**Function************************************************************* + + Synopsis [Converts the network from the AIG manager into ABC.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Abc_Ntk_t * Abc_NtkFromAigSeq( Abc_Ntk_t * pNtkOld, Ivy_Man_t * pMan ) +{ + Vec_Int_t * vNodes, * vLatches; + Abc_Ntk_t * pNtk; + Abc_Obj_t * pObj, * pObjNew, * pFaninNew, * pFaninNew0, * pFaninNew1; + Ivy_Obj_t * pNode; + int i; + assert( Ivy_ManLatchNum(pMan) > 0 ); + // perform strashing + pNtk = Abc_NtkStartFromNoLatches( pNtkOld, ABC_NTK_STRASH, ABC_FUNC_AIG ); + // transfer the pointers to the basic nodes + Ivy_ManConst1(pMan)->TravId = Abc_EdgeFromNode( Abc_NtkConst1(pNtk) ); + Abc_NtkForEachPi( pNtkOld, pObj, i ) + Ivy_ManPi(pMan, i)->TravId = Abc_EdgeFromNode( pObj->pCopy ); + // create latches of the new network + vNodes = Ivy_ManDfsSeq( pMan, &vLatches ); + Ivy_ManForEachNodeVec( pMan, vLatches, pNode, i ) + { + pObjNew = Abc_NtkCreateLatch( pNtk ); + if ( Ivy_ObjInit(pNode) == IVY_INIT_DC ) + Abc_LatchSetInitDc( pObjNew ); + else if ( Ivy_ObjInit(pNode) == IVY_INIT_1 ) + Abc_LatchSetInit1( pObjNew ); + else if ( Ivy_ObjInit(pNode) == IVY_INIT_0 ) + Abc_LatchSetInit0( pObjNew ); + else assert( 0 ); + pNode->TravId = Abc_EdgeFromNode( pObjNew ); + } + // rebuild the AIG + Ivy_ManForEachNodeVec( pMan, vNodes, pNode, i ) + { + // add the first fanins + pFaninNew0 = Abc_ObjFanin0Ivy( pNtk, pNode ); + if ( Ivy_ObjIsBuf(pNode) ) + { + pNode->TravId = Abc_EdgeFromNode( pFaninNew0 ); + continue; + } + // add the first second + pFaninNew1 = Abc_ObjFanin1Ivy( pNtk, pNode ); + // create the new node + if ( Ivy_ObjIsExor(pNode) ) + pObjNew = Abc_AigXor( pNtk->pManFunc, pFaninNew0, pFaninNew1 ); + else + pObjNew = Abc_AigAnd( pNtk->pManFunc, pFaninNew0, pFaninNew1 ); + pNode->TravId = Abc_EdgeFromNode( pObjNew ); + } + // connect the PO nodes + Abc_NtkForEachPo( pNtkOld, pObj, i ) + { + pFaninNew = Abc_ObjFanin0Ivy( pNtk, Ivy_ManPo(pMan, i) ); + Abc_ObjAddFanin( pObj->pCopy, pFaninNew ); + } + // connect the latches + Ivy_ManForEachNodeVec( pMan, vLatches, pNode, i ) + { + pFaninNew = Abc_ObjFanin0Ivy( pNtk, pNode ); + Abc_ObjAddFanin( Abc_NtkLatch(pNtk, i), pFaninNew ); + } + Vec_IntFree( vLatches ); + Vec_IntFree( vNodes ); + if ( !Abc_NtkCheck( pNtk ) ) + fprintf( stdout, "Abc_NtkFromAigSeq(): Network check has failed.\n" ); return pNtk; } @@ -205,14 +497,11 @@ Ivy_Man_t * Abc_NtkToAig( Abc_Ntk_t * pNtkOld ) int i; // create the manager assert( Abc_NtkHasSop(pNtkOld) || Abc_NtkHasAig(pNtkOld) ); - if ( Abc_NtkHasSop(pNtkOld) ) - pMan = Ivy_ManStart( Abc_NtkCiNum(pNtkOld), Abc_NtkCoNum(pNtkOld), Abc_NtkGetLitNum(pNtkOld) + 1000 ); - else - pMan = Ivy_ManStart( Abc_NtkCiNum(pNtkOld), Abc_NtkCoNum(pNtkOld), Abc_NtkNodeNum(pNtkOld) + 1000 ); + pMan = Ivy_ManStart(); // create the PIs Abc_NtkConst1(pNtkOld)->pCopy = (Abc_Obj_t *)Ivy_ManConst1(pMan); Abc_NtkForEachCi( pNtkOld, pObj, i ) - pObj->pCopy = (Abc_Obj_t *)Ivy_ManPi(pMan, i); + pObj->pCopy = (Abc_Obj_t *)Ivy_ObjCreatePi(pMan); // perform the conversion of the internal nodes Abc_NtkStrashPerformAig( pNtkOld, pMan ); // create the POs @@ -220,7 +509,7 @@ Ivy_Man_t * Abc_NtkToAig( Abc_Ntk_t * pNtkOld ) { pFanin = (Ivy_Obj_t *)Abc_ObjFanin0(pObj)->pCopy; pFanin = Ivy_NotCond( pFanin, Abc_ObjFaninC0(pObj) ); - Ivy_ObjConnect( Ivy_ManPo(pMan, i), pFanin ); + Ivy_ObjCreatePo( pMan, pFanin ); } Ivy_ManCleanup( pMan ); return pMan; @@ -283,7 +572,7 @@ Ivy_Obj_t * Abc_NodeStrashAig( Ivy_Man_t * pMan, Abc_Obj_t * pNode ) pFanin0 = Ivy_NotCond( pFanin0, Abc_ObjFaninC0(pNode) ); pFanin1 = (Ivy_Obj_t *)Abc_ObjFanin1(pNode)->pCopy; pFanin1 = Ivy_NotCond( pFanin1, Abc_ObjFaninC1(pNode) ); - return Ivy_And( pFanin0, pFanin1 ); + return Ivy_And( pMan, pFanin0, pFanin1 ); } // get the SOP of the node @@ -336,12 +625,12 @@ Ivy_Obj_t * Abc_NodeStrashAigSopAig( Ivy_Man_t * pMan, Abc_Obj_t * pNode, char * Abc_ObjForEachFanin( pNode, pFanin, i ) // pFanin can be a net { if ( pCube[i] == '1' ) - pAnd = Ivy_And( pAnd, (Ivy_Obj_t *)pFanin->pCopy ); + pAnd = Ivy_And( pMan, pAnd, (Ivy_Obj_t *)pFanin->pCopy ); else if ( pCube[i] == '0' ) - pAnd = Ivy_And( pAnd, Ivy_Not((Ivy_Obj_t *)pFanin->pCopy) ); + pAnd = Ivy_And( pMan, pAnd, Ivy_Not((Ivy_Obj_t *)pFanin->pCopy) ); } // add to the sum of cubes - pSum = Ivy_Or( pSum, pAnd ); + pSum = Ivy_Or( pMan, pSum, pAnd ); } // decide whether to complement the result if ( Abc_SopIsComplement(pSop) ) @@ -373,7 +662,7 @@ Ivy_Obj_t * Abc_NodeStrashAigExorAig( Ivy_Man_t * pMan, Abc_Obj_t * pNode, char for ( i = 0; i < nFanins; i++ ) { pFanin = Abc_ObjFanin( pNode, i ); - pSum = Ivy_Exor( pSum, (Ivy_Obj_t *)pFanin->pCopy ); + pSum = Ivy_Exor( pMan, pSum, (Ivy_Obj_t *)pFanin->pCopy ); } if ( Abc_SopIsComplement(pSop) ) pSum = Ivy_Not(pSum); @@ -417,6 +706,35 @@ Ivy_Obj_t * Abc_NodeStrashAigFactorAig( Ivy_Man_t * pMan, Abc_Obj_t * pRoot, cha return pAnd; } +/**Function************************************************************* + + Synopsis [Strashes one logic node using its SOP.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int * Abc_NtkCollectLatchValues( Abc_Ntk_t * pNtk ) +{ + Abc_Obj_t * pLatch; + int * pArray, i; + pArray = ALLOC( int, Abc_NtkLatchNum(pNtk) ); + Abc_NtkForEachLatch( pNtk, pLatch, i ) + { + if ( Abc_LatchIsInitDc(pLatch) ) + pArray[i] = IVY_INIT_DC; + else if ( Abc_LatchIsInit1(pLatch) ) + pArray[i] = IVY_INIT_1; + else if ( Abc_LatchIsInit0(pLatch) ) + pArray[i] = IVY_INIT_0; + else assert( 0 ); + } + return pArray; +} + //////////////////////////////////////////////////////////////////////// /// END OF FILE /// //////////////////////////////////////////////////////////////////////// diff --git a/src/base/abci/abcPrint.c b/src/base/abci/abcPrint.c index a3cd227d..0124d7bf 100644 --- a/src/base/abci/abcPrint.c +++ b/src/base/abci/abcPrint.c @@ -185,6 +185,7 @@ void Abc_NtkPrintIo( FILE * pFile, Abc_Ntk_t * pNtk ) fprintf( pFile, "Primary inputs (%d): ", Abc_NtkPiNum(pNtk) ); Abc_NtkForEachPi( pNtk, pObj, i ) fprintf( pFile, " %s", Abc_ObjName(pObj) ); +// fprintf( pFile, " %s(%d)", Abc_ObjName(pObj), Abc_ObjFanoutNum(pObj) ); fprintf( pFile, "\n" ); fprintf( pFile, "Primary outputs (%d):", Abc_NtkPoNum(pNtk) ); diff --git a/src/base/abci/abcReconv.c b/src/base/abci/abcReconv.c index 10400129..a81e94ad 100644 --- a/src/base/abci/abcReconv.c +++ b/src/base/abci/abcReconv.c @@ -321,6 +321,7 @@ int Abc_NodeBuildCutLevelOne_int( Vec_Ptr_t * vVisited, Vec_Ptr_t * vLeaves, int { CostCur = Abc_NodeGetLeafCostOne( pNode, nFaninLimit ); //printf( " Fanin %s has cost %d.\n", Abc_ObjName(pNode), CostCur ); +// if ( CostBest > CostCur ) // performance improvement: expand the variable with the smallest level if ( CostBest > CostCur || (CostBest == CostCur && pNode->Level > pFaninBest->Level) ) { |