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Commit 62439be8 by Alan Mishchenko
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New logic sharing extraction.

parent 49ac3c52
Showing with 582 additions and 72 deletions
abclib.dsp
......@@ -3683,6 +3683,10 @@ SOURCE=.\src\aig\gia\giaFront.c
# End Source File
# Begin Source File
SOURCE=.\src\aig\gia\giaFx.c
# End Source File
# Begin Source File
SOURCE=.\src\aig\gia\giaGlitch.c
# End Source File
# Begin Source File
......
src/aig/gia/gia.h
......@@ -174,7 +174,7 @@ struct Gia_Man_t_
// truth table computation for small functions
int nTtVars; // truth table variables
int nTtWords; // truth table words
Vec_Str_t * vTtNums; // object numbers
Vec_Int_t * vTtNums; // object numbers
Vec_Int_t * vTtNodes; // internal nodes
Vec_Ptr_t * vTtInputs; // truth tables for constant and primary inputs
Vec_Wrd_t * vTtMemory; // truth tables for internal nodes
......@@ -454,8 +454,8 @@ static inline void Gia_ObjSetXorLevel( Gia_Man_t * p, Gia_Obj_t * pObj )
static inline void Gia_ObjSetMuxLevel( Gia_Man_t * p, Gia_Obj_t * pObj ) { assert( Gia_ObjIsMux(p,pObj) ); Gia_ObjSetLevel( p, pObj, 2+Abc_MaxInt( Abc_MaxInt(Gia_ObjLevel(p,Gia_ObjFanin0(pObj)),Gia_ObjLevel(p,Gia_ObjFanin1(pObj))), Gia_ObjLevel(p,Gia_ObjFanin2(p,pObj))) ); }
static inline void Gia_ObjSetGateLevel( Gia_Man_t * p, Gia_Obj_t * pObj ){ if ( Gia_ObjIsMux(p,pObj) ) Gia_ObjSetMuxLevel(p, pObj); else if ( Gia_ObjIsXor(pObj) ) Gia_ObjSetXorLevel(p, pObj); else if ( Gia_ObjIsAnd(pObj) ) Gia_ObjSetAndLevel(p, pObj); }
static inline int Gia_ObjNum( Gia_Man_t * p, Gia_Obj_t * pObj ) { return (int)(unsigned char)Vec_StrGetEntry(p->vTtNums, Gia_ObjId(p,pObj)); }
static inline void Gia_ObjSetNum( Gia_Man_t * p, Gia_Obj_t * pObj, int n ) { assert( n >= 0 && n < 254 ); Vec_StrSetEntry(p->vTtNums, Gia_ObjId(p,pObj), (char)n); }
static inline int Gia_ObjNum( Gia_Man_t * p, Gia_Obj_t * pObj ) { return Vec_IntGetEntry(p->vTtNums, Gia_ObjId(p,pObj)); }
static inline void Gia_ObjSetNum( Gia_Man_t * p, Gia_Obj_t * pObj, int n ) { assert( n >= 0 ); Vec_IntSetEntry(p->vTtNums, Gia_ObjId(p,pObj), n); }
static inline int Gia_ObjRefNumId( Gia_Man_t * p, int Id ) { return p->pRefs[Id]; }
static inline int Gia_ObjRefIncId( Gia_Man_t * p, int Id ) { return p->pRefs[Id]++; }
......@@ -931,7 +931,7 @@ extern Vec_Str_t * Gia_AigerWriteIntoMemoryStrPart( Gia_Man_t * p, Vec_I
extern void Gia_AigerWriteSimple( Gia_Man_t * pInit, char * pFileName );
/*=== giaBalance.c ===========================================================*/
extern Gia_Man_t * Gia_ManBalance( Gia_Man_t * p, int fSimpleAnd, int fVerbose );
extern Gia_Man_t * Gia_ManMultiExtract( Gia_Man_t * p, int fSimpleAnd, int nNewNodesMax, int fVerbose, int fVeryVerbose );
extern Gia_Man_t * Gia_ManAreaBalance( Gia_Man_t * p, int fSimpleAnd, int nNewNodesMax, int fVerbose, int fVeryVerbose );
/*=== giaBidec.c ===========================================================*/
extern unsigned * Gia_ManConvertAigToTruth( Gia_Man_t * p, Gia_Obj_t * pRoot, Vec_Int_t * vLeaves, Vec_Int_t * vTruth, Vec_Int_t * vVisited );
extern Gia_Man_t * Gia_ManPerformBidec( Gia_Man_t * p, int fVerbose );
......@@ -1193,7 +1193,7 @@ extern Gia_Man_t * Gia_ManUpdateExtraAig( void * pTime, Gia_Man_t * pAig
/*=== giaTruth.c ===========================================================*/
extern word Gia_ObjComputeTruthTable6Lut( Gia_Man_t * p, int iObj, Vec_Wrd_t * vTemp );
extern word Gia_ObjComputeTruthTable6( Gia_Man_t * p, Gia_Obj_t * pObj, Vec_Int_t * vSupp, Vec_Wrd_t * vTruths );
extern int Gia_ObjCollectInternal( Gia_Man_t * p, Gia_Obj_t * pObj );
extern void Gia_ObjCollectInternal( Gia_Man_t * p, Gia_Obj_t * pObj );
extern word * Gia_ObjComputeTruthTable( Gia_Man_t * p, Gia_Obj_t * pObj );
extern void Gia_ObjComputeTruthTableStart( Gia_Man_t * p, int nVarsMax );
extern void Gia_ObjComputeTruthTableStop( Gia_Man_t * p );
......
src/aig/gia/giaBalance.c
......@@ -896,7 +896,7 @@ Gia_Man_t * Dam_ManMultiExtractInt( Gia_Man_t * pGia, int nNewNodesMax, int fVer
Dam_ManFree( p );
return pNew;
}
Gia_Man_t * Gia_ManMultiExtract( Gia_Man_t * p, int fSimpleAnd, int nNewNodesMax, int fVerbose, int fVeryVerbose )
Gia_Man_t * Gia_ManAreaBalance( Gia_Man_t * p, int fSimpleAnd, int nNewNodesMax, int fVerbose, int fVeryVerbose )
{
Gia_Man_t * pNew, * pNew1, * pNew2;
if ( fVerbose ) Gia_ManPrintStats( p, NULL );
......
src/aig/gia/giaFx.c 0 → 100644
/**CFile****************************************************************
FileName [giaFx.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Scalable AIG package.]
Synopsis [Interface to fast_extract package.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: giaFx.c,v 1.00 2013/09/29 00:00:00 alanmi Exp $]
***********************************************************************/
#include "gia.h"
#include "bool/kit/kit.h"
#include "misc/vec/vecWec.h"
#include "bool/dec/dec.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Create GIA for SOP.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Gia_ManGraphToAig( Gia_Man_t * p, Dec_Graph_t * pGraph )
{
Dec_Node_t * pNode = NULL; // Suppress "might be used uninitialized"
int i, iAnd0, iAnd1;
// check for constant function
if ( Dec_GraphIsConst(pGraph) )
return Abc_LitNotCond( 1, Dec_GraphIsComplement(pGraph) );
// check for a literal
if ( Dec_GraphIsVar(pGraph) )
return Abc_LitNotCond( Dec_GraphVar(pGraph)->iFunc, Dec_GraphIsComplement(pGraph) );
// build the AIG nodes corresponding to the AND gates of the graph
Dec_GraphForEachNode( pGraph, pNode, i )
{
iAnd0 = Abc_LitNotCond( Dec_GraphNode(pGraph, pNode->eEdge0.Node)->iFunc, pNode->eEdge0.fCompl );
iAnd1 = Abc_LitNotCond( Dec_GraphNode(pGraph, pNode->eEdge1.Node)->iFunc, pNode->eEdge1.fCompl );
pNode->iFunc = Gia_ManHashAnd( p, iAnd0, iAnd1 );
}
// complement the result if necessary
return Abc_LitNotCond( pNode->iFunc, Dec_GraphIsComplement(pGraph) );
}
int Gia_ManSopToAig( Gia_Man_t * p, char * pSop, Vec_Int_t * vLeaves )
{
int i, iAnd, iSum, Value, nFanins;
char * pCube;
// get the number of variables
nFanins = Kit_PlaGetVarNum(pSop);
// go through the cubes of the node's SOP
iSum = 0;
Kit_PlaForEachCube( pSop, nFanins, pCube )
{
// create the AND of literals
iAnd = 1;
Kit_PlaCubeForEachVar( pCube, Value, i )
{
assert( Vec_IntEntry(vLeaves, i) >= 0 );
if ( Value == '1' )
iAnd = Gia_ManHashAnd( p, iAnd, Vec_IntEntry(vLeaves, i) );
else if ( Value == '0' )
iAnd = Gia_ManHashAnd( p, iAnd, Abc_LitNot(Vec_IntEntry(vLeaves, i)) );
else assert( Value == '-' );
}
// add to the sum of cubes
iSum = Gia_ManHashOr( p, iSum, iAnd );
}
// decide whether to complement the result
if ( Kit_PlaIsComplement(pSop) )
iSum = Abc_LitNot(iSum);
return iSum;
}
int Gia_ManFactorNode( Gia_Man_t * p, char * pSop, Vec_Int_t * vLeaves )
{
if ( Kit_PlaGetVarNum(pSop) == 0 )
return Abc_LitNotCond( 1, Kit_PlaIsConst0(pSop) );
assert( Kit_PlaGetVarNum(pSop) == Vec_IntSize(vLeaves) );
if ( Kit_PlaGetVarNum(pSop) > 2 && Kit_PlaGetCubeNum(pSop) > 1 )
{
Dec_Graph_t * pFForm;
Dec_Node_t * pFFNode;
int i, Lit;
pFForm = Dec_Factor( pSop );
// assign fanins
Dec_GraphForEachLeaf( pFForm, pFFNode, i )
{
assert( Vec_IntEntry(vLeaves, i) >= 0 );
pFFNode->iFunc = Vec_IntEntry(vLeaves, i);
}
// perform strashing
Lit = Gia_ManGraphToAig( p, pFForm );
Dec_GraphFree( pFForm );
return Lit;
}
return Gia_ManSopToAig( p, pSop, vLeaves );
}
/**Function*************************************************************
Synopsis [Computing truth tables for the mapped network.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Vec_Wrd_t * Gia_ManComputeTruths( Gia_Man_t * p, int nCutSize, int nLutNum )
{
Vec_Wrd_t * vTruths;
Vec_Int_t vLeaves;
word * pTruth;
int i, k, nWords;
nWords = Abc_Truth6WordNum( nCutSize );
vTruths = Vec_WrdAlloc( nWords * nLutNum );
Gia_ObjComputeTruthTableStart( p, nCutSize );
Gia_ManForEachLut( p, i )
{
// collect and sort fanins
vLeaves.nCap = vLeaves.nSize = Gia_ObjLutSize( p, i );
vLeaves.pArray = Gia_ObjLutFanins( p, i );
assert( Vec_IntCheckUniqueSmall(&vLeaves) );
Vec_IntSelectSort( Vec_IntArray(&vLeaves), Vec_IntSize(&vLeaves) );
// compute truth table
pTruth = Gia_ObjComputeTruthTableCut( p, Gia_ManObj(p, i), &vLeaves );
for ( k = 0; k < nWords; k++ )
Vec_WrdPush( vTruths, pTruth[k] );
// Kit_DsdPrintFromTruth( (unsigned *)pTruth, 6 ); printf( "\n" );
}
Gia_ObjComputeTruthTableStop( p );
assert( Vec_WrdCap(vTruths) == 16 || Vec_WrdSize(vTruths) == Vec_WrdCap(vTruths) );
return vTruths;
}
/**Function*************************************************************
Synopsis [Extracts information about the network.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Gia_ManAssignNumbers( Gia_Man_t * p )
{
Gia_Obj_t * pObj;
int i, Counter = 0;
Gia_ManFillValue( p );
Gia_ManForEachCi( p, pObj, i )
pObj->Value = Counter++;
Gia_ManForEachLut( p, i )
Gia_ManObj(p, i)->Value = Counter++;
return Counter;
}
Vec_Wec_t * Gia_ManFxRetrieve( Gia_Man_t * p, Vec_Str_t ** pvCompl )
{
Vec_Wec_t * vCubes;
Vec_Wrd_t * vTruths;
Vec_Int_t * vCube, * vCover;
int nItems, nCutSize, nWords;
int i, c, v, Lit, Cube, Counter = 0;
abctime clk = Abc_Clock();
nItems = Gia_ManAssignNumbers( p );
// compute truth tables
nCutSize = Gia_ManLutSizeMax( p );
nWords = Abc_Truth6WordNum( nCutSize );
vTruths = Gia_ManComputeTruths( p, Abc_MaxInt(6, nCutSize), nItems - Gia_ManCiNum(p) );
vCover = Vec_IntAlloc( 1 << 16 );
// collect cubes
vCubes = Vec_WecAlloc( 1000 );
*pvCompl = Vec_StrStart( nItems );
Gia_ManForEachLut( p, i )
{
Gia_Obj_t * pObj = Gia_ManObj( p, i );
int nVars = Gia_ObjLutSize( p, i );
int * pVars = Gia_ObjLutFanins( p, i );
word * pTruth = Vec_WrdEntryP( vTruths, Counter++ * nWords );
int Status = Kit_TruthIsop( (unsigned *)pTruth, nVars, vCover, 1 );
if ( Vec_IntSize(vCover) == 0 || (Vec_IntSize(vCover) == 1 && Vec_IntEntry(vCover,0) == 0) )
{
Vec_StrWriteEntry( *pvCompl, pObj->Value, (char)(Vec_IntSize(vCover) == 0) );
vCube = Vec_WecPushLevel( vCubes );
Vec_IntPush( vCube, pObj->Value );
continue;
}
Vec_StrWriteEntry( *pvCompl, pObj->Value, (char)Status );
Vec_IntForEachEntry( vCover, Cube, c )
{
vCube = Vec_WecPushLevel( vCubes );
Vec_IntPush( vCube, pObj->Value );
for ( v = 0; v < nVars; v++ )
{
Lit = 3 & (Cube >> (v << 1));
if ( Lit == 1 )
Vec_IntPush( vCube, Abc_Var2Lit(Gia_ManObj(p, pVars[v])->Value, 1) );
else if ( Lit == 2 )
Vec_IntPush( vCube, Abc_Var2Lit(Gia_ManObj(p, pVars[v])->Value, 0) );
else if ( Lit != 0 )
assert( 0 );
}
Vec_IntSelectSort( Vec_IntArray(vCube) + 1, Vec_IntSize(vCube) - 1 );
}
}
assert( Counter * nWords == Vec_WrdSize(vTruths) );
Vec_WrdFree( vTruths );
Vec_IntFree( vCover );
Abc_PrintTime( 1, "Setup time", Abc_Clock() - clk );
return vCubes;
}
/**Function*************************************************************
Synopsis [Generates GIA after factoring the resulting SOPs.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gia_ManFxTopoOrder_rec( Vec_Wec_t * vCubes, Vec_Int_t * vFirst, Vec_Int_t * vCount, Vec_Int_t * vVisit, Vec_Int_t * vOrder, int iObj )
{
int c, v, Lit;
int iFirst = Vec_IntEntry( vFirst, iObj );
int nCubes = Vec_IntEntry( vCount, iObj );
assert( !Vec_IntEntry( vVisit, iObj ) );
Vec_IntWriteEntry( vVisit, iObj, 1 );
for ( c = 0; c < nCubes; c++ )
{
Vec_Int_t * vCube = Vec_WecEntry( vCubes, iFirst + c );
assert( Vec_IntEntry(vCube, 0) == iObj );
Vec_IntForEachEntryStart( vCube, Lit, v, 1 )
if ( !Vec_IntEntry( vVisit, Abc_Lit2Var(Lit) ) )
Gia_ManFxTopoOrder_rec( vCubes, vFirst, vCount, vVisit, vOrder, Abc_Lit2Var(Lit) );
}
Vec_IntPush( vOrder, iObj );
}
Vec_Int_t * Gia_ManFxTopoOrder( Vec_Wec_t * vCubes, int nInputs, int nStart, Vec_Int_t ** pvFirst, Vec_Int_t ** pvCount )
{
Vec_Int_t * vOrder, * vFirst, * vCount, * vVisit, * vCube;
int i, iFanin, nNodeMax = -1;
// find the largest index
Vec_WecForEachLevel( vCubes, vCube, i )
nNodeMax = Abc_MaxInt( nNodeMax, Vec_IntEntry(vCube, 0) );
nNodeMax++;
// quit if there is no new nodes
if ( nNodeMax == nStart )
{
printf( "The network is unchanged by fast extract.\n" );
return NULL;
}
// find first cube and how many cubes
vFirst = Vec_IntStart( nNodeMax );
vCount = Vec_IntStart( nNodeMax );
Vec_WecForEachLevel( vCubes, vCube, i )
{
iFanin = Vec_IntEntry( vCube, 0 );
assert( iFanin >= nInputs );
if ( Vec_IntEntry(vCount, iFanin) == 0 )
Vec_IntWriteEntry( vFirst, iFanin, i );
Vec_IntAddToEntry( vCount, iFanin, 1 );
}
// put all of them in a topo order
vOrder = Vec_IntStart( nInputs );
vVisit = Vec_IntStart( nNodeMax );
for ( i = 0; i < nInputs; i++ )
Vec_IntWriteEntry( vVisit, i, 1 );
for ( i = nInputs; i < nNodeMax; i++ )
if ( !Vec_IntEntry( vVisit, i ) )
Gia_ManFxTopoOrder_rec( vCubes, vFirst, vCount, vVisit, vOrder, i );
assert( Vec_IntSize(vOrder) == nNodeMax );
Vec_IntFree( vVisit );
// return topological order of new nodes
*pvFirst = vFirst;
*pvCount = vCount;
return vOrder;
}
Gia_Man_t * Gia_ManFxInsert( Gia_Man_t * p, Vec_Wec_t * vCubes, Vec_Str_t * vCompls )
{
Gia_Man_t * pNew, * pTemp;
Gia_Obj_t * pObj; Vec_Str_t * vSop;
Vec_Int_t * vOrder, * vFirst, * vCount, * vFanins;
Vec_Int_t * vCopies, * vCube, * vMap;
int k, c, v, Lit, Var, iItem;
abctime clk = Abc_Clock();
// prepare the cubes
vOrder = Gia_ManFxTopoOrder( vCubes, Gia_ManCiNum(p), Vec_StrSize(vCompls), &vFirst, &vCount );
if ( vOrder == NULL )
return Gia_ManDup( p );
assert( Vec_IntSize(vOrder) > Vec_StrSize(vCompls) );
// create new manager
pNew = Gia_ManStart( Gia_ManObjNum(p) );
pNew->pName = Abc_UtilStrsav( p->pName );
pNew->pSpec = Abc_UtilStrsav( p->pSpec );
Gia_ManHashStart( pNew );
// create primary inputs
vMap = Vec_IntStartFull( Vec_IntSize(vOrder) );
vCopies = Vec_IntAlloc( Vec_IntSize(vOrder) );
Gia_ManForEachCi( p, pObj, k )
Vec_IntPush( vCopies, Gia_ManAppendCi(pNew) );
Vec_IntFillExtra( vCopies, Vec_IntSize(vOrder), -1 );
// add AIG nodes in the topological order
vSop = Vec_StrAlloc( 1000 );
vFanins = Vec_IntAlloc( 100 );
Vec_IntForEachEntryStart( vOrder, iItem, k, Gia_ManCiNum(p) )
{
int iFirst = Vec_IntEntry( vFirst, iItem );
int nCubes = Vec_IntEntry( vCount, iItem );
// collect fanins
Vec_IntClear( vFanins );
for ( c = 0; c < nCubes; c++ )
{
vCube = Vec_WecEntry( vCubes, iFirst + c );
Vec_IntForEachEntryStart( vCube, Lit, v, 1 )
if ( Vec_IntEntry(vMap, Abc_Lit2Var(Lit)) == -1 )
{
Vec_IntWriteEntry( vMap, Abc_Lit2Var(Lit), Vec_IntSize(vFanins) );
Vec_IntPush( vFanins, Abc_Lit2Var(Lit) );
}
}
// create SOPs
Vec_StrClear( vSop );
for ( c = 0; c < nCubes; c++ )
{
for ( v = 0; v < Vec_IntSize(vFanins); v++ )
Vec_StrPush( vSop, '-' );
vCube = Vec_WecEntry( vCubes, iFirst + c );
Vec_IntForEachEntryStart( vCube, Lit, v, 1 )
{
Lit = Abc_Lit2LitV( Vec_IntArray(vMap), Lit );
assert( Lit >= 0 && Abc_Lit2Var(Lit) < Vec_IntSize(vFanins) );
Vec_StrWriteEntry( vSop, Vec_StrSize(vSop) - Vec_IntSize(vFanins) + Abc_Lit2Var(Lit), (char)(Abc_LitIsCompl(Lit)? '0' : '1') );
}
Vec_StrPush( vSop, ' ' );
Vec_StrPush( vSop, '1' );
Vec_StrPush( vSop, '\n' );
}
Vec_StrPush( vSop, '\0' );
// collect fanins
Vec_IntForEachEntry( vFanins, Var, v )
{
Vec_IntWriteEntry( vMap, Var, -1 );
Vec_IntWriteEntry( vFanins, v, Vec_IntEntry(vCopies, Var) );
}
// derive new AIG
Lit = Gia_ManFactorNode( pNew, Vec_StrArray(vSop), vFanins );
Lit = Abc_LitNotCond( Lit, (iItem < Vec_StrSize(vCompls)) && (Vec_StrEntry(vCompls, iItem) > 0) );
// remeber this literal
assert( Vec_IntEntry(vCopies, iItem) == -1 );
Vec_IntWriteEntry( vCopies, iItem, Lit );
}
Gia_ManHashStop( pNew );
// create primary outputs
Gia_ManForEachCo( p, pObj, k )
{
Lit = Gia_ObjFaninId0p(p, pObj) ? Vec_IntEntry(vCopies, Gia_ObjFanin0(pObj)->Value) : 0;
Gia_ManAppendCo( pNew, Abc_LitNotCond( Lit, Gia_ObjFaninC0(pObj) ) );
}
Gia_ManSetRegNum( pNew, Gia_ManRegNum(p) );
// cleanup
Vec_IntFree( vOrder );
Vec_IntFree( vFirst );
Vec_IntFree( vCount );
Vec_IntFree( vFanins );
Vec_IntFree( vCopies );
Vec_IntFree( vMap );
Vec_StrFree( vSop );
// remove dangling nodes
pNew = Gia_ManCleanup( pTemp = pNew );
Gia_ManStop( pTemp );
Abc_PrintTime( 1, "Setdn time", Abc_Clock() - clk );
return pNew;
}
/**Function*************************************************************
Synopsis [Performs classical fast_extract on logic functions.]
Description []
SideEffects [Sorts the fanins of each cut in the increasing order.]
SeeAlso []
***********************************************************************/
Gia_Man_t * Gia_ManPerformFx( Gia_Man_t * p, int nNewNodesMax, int LitCountMax, int fVerbose, int fVeryVerbose )
{
extern int Fx_FastExtract( Vec_Wec_t * vCubes, int ObjIdMax, int nNewNodesMax, int LitCountMax, int fVerbose, int fVeryVerbose );
Gia_Man_t * pNew = NULL;
Vec_Wec_t * vCubes;
Vec_Str_t * vCompl;
abctime clk;
assert( Gia_ManHasMapping(p) );
// collect information
vCubes = Gia_ManFxRetrieve( p, &vCompl );
// call the fast extract procedure
clk = Abc_Clock();
Fx_FastExtract( vCubes, Vec_StrSize(vCompl), nNewNodesMax, LitCountMax, fVerbose, fVeryVerbose );
Abc_PrintTime( 1, "Fx runtime", Abc_Clock() - clk );
// insert information
pNew = Gia_ManFxInsert( p, vCubes, vCompl );
// cleanup
Vec_WecFree( vCubes );
Vec_StrFree( vCompl );
return pNew;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
src/aig/gia/giaMan.c
......@@ -95,7 +95,7 @@ void Gia_ManStop( Gia_Man_t * p )
Vec_IntFreeP( &p->vDoms );
Vec_IntFreeP( &p->vLevels );
Vec_IntFreeP( &p->vTruths );
Vec_StrFreeP( &p->vTtNums );
Vec_IntFreeP( &p->vTtNums );
Vec_IntFreeP( &p->vTtNodes );
Vec_WrdFreeP( &p->vTtMemory );
Vec_PtrFreeP( &p->vTtInputs );
......
src/aig/gia/giaTruth.c
......@@ -38,8 +38,8 @@ static word s_Truth6[6] = {
static inline word * Gla_ObjTruthElem( Gia_Man_t * p, int i ) { return (word *)Vec_PtrEntry( p->vTtInputs, i ); }
static inline word * Gla_ObjTruthNode( Gia_Man_t * p, Gia_Obj_t * pObj ) { return Vec_WrdArray(p->vTtMemory) + p->nTtWords * Gia_ObjNum(p, pObj); }
static inline word * Gla_ObjTruthFree1( Gia_Man_t * p ) { return Vec_WrdArray(p->vTtMemory) + p->nTtWords * 254; }
static inline word * Gla_ObjTruthFree2( Gia_Man_t * p ) { return Vec_WrdArray(p->vTtMemory) + p->nTtWords * 255; }
static inline word * Gla_ObjTruthFree1( Gia_Man_t * p ) { return Vec_WrdArray(p->vTtMemory) + Vec_WrdSize(p->vTtMemory) - p->nTtWords * 1; }
static inline word * Gla_ObjTruthFree2( Gia_Man_t * p ) { return Vec_WrdArray(p->vTtMemory) + Vec_WrdSize(p->vTtMemory) - p->nTtWords * 2; }
static inline word * Gla_ObjTruthConst0( Gia_Man_t * p, word * pDst ) { int w; for ( w = 0; w < p->nTtWords; w++ ) pDst[w] = 0; return pDst; }
static inline word * Gla_ObjTruthDup( Gia_Man_t * p, word * pDst, word * pSrc, int c ) { int w; for ( w = 0; w < p->nTtWords; w++ ) pDst[w] = c ? ~pSrc[w] : pSrc[w]; return pDst; }
......@@ -143,28 +143,22 @@ word Gia_ObjComputeTruthTable6( Gia_Man_t * p, Gia_Obj_t * pObj, Vec_Int_t * vSu
SeeAlso []
***********************************************************************/
int Gia_ObjCollectInternal_rec( Gia_Man_t * p, Gia_Obj_t * pObj )
void Gia_ObjCollectInternal_rec( Gia_Man_t * p, Gia_Obj_t * pObj )
{
if ( !Gia_ObjIsAnd(pObj) )
return 0;
return;
if ( pObj->fMark0 )
return 0;
return;
pObj->fMark0 = 1;
Gia_ObjCollectInternal_rec( p, Gia_ObjFanin0(pObj) );
Gia_ObjCollectInternal_rec( p, Gia_ObjFanin1(pObj) );
if ( Vec_IntSize(p->vTtNodes) > 253 )
return 1;
Gia_ObjSetNum( p, pObj, Vec_IntSize(p->vTtNodes) );
Vec_IntPush( p->vTtNodes, Gia_ObjId(p, pObj) );
return 0;
}
int Gia_ObjCollectInternal( Gia_Man_t * p, Gia_Obj_t * pObj )
void Gia_ObjCollectInternal( Gia_Man_t * p, Gia_Obj_t * pObj )
{
int RetValue;
Vec_IntClear( p->vTtNodes );
RetValue = Gia_ObjCollectInternal_rec( p, pObj );
assert( Vec_IntSize(p->vTtNodes) < 254 );
return RetValue;
Gia_ObjCollectInternal_rec( p, pObj );
}
/**Function*************************************************************
......@@ -188,7 +182,7 @@ word * Gia_ObjComputeTruthTable( Gia_Man_t * p, Gia_Obj_t * pObj )
{
p->nTtVars = Gia_ManPiNum( p );
p->nTtWords = (p->nTtVars <= 6 ? 1 : (1 << (p->nTtVars - 6)));
p->vTtNums = Vec_StrAlloc( Gia_ManObjNum(p) + 1000 );
p->vTtNums = Vec_IntAlloc( Gia_ManObjNum(p) + 1000 );
p->vTtNodes = Vec_IntAlloc( 256 );
p->vTtInputs = Vec_PtrAllocTruthTables( p->nTtVars );
p->vTtMemory = Vec_WrdStart( p->nTtWords * 256 );
......@@ -201,13 +195,10 @@ word * Gia_ObjComputeTruthTable( Gia_Man_t * p, Gia_Obj_t * pObj )
}
// collect internal nodes
pRoot = Gia_ObjIsCo(pObj) ? Gia_ObjFanin0(pObj) : pObj;
if ( Gia_ObjCollectInternal( p, pRoot ) )
{
Gia_ManForEachObjVec( p->vTtNodes, p, pTemp, i )
pTemp->fMark0 = 0;
return NULL;
}
Gia_ObjCollectInternal( p, pRoot );
// compute the truth table for internal nodes
if ( Vec_WrdSize(p->vTtMemory) < p->nTtWords * (Vec_IntSize(p->vTtNodes) + 2) )
Vec_WrdFillExtra( p->vTtMemory, p->nTtWords * (Vec_IntSize(p->vTtNodes) + 2), 0 );
Gia_ManForEachObjVec( p->vTtNodes, p, pTemp, i )
{
pTemp->fMark0 = 0; // unmark nodes marked by Gia_ObjCollectInternal()
......@@ -283,21 +274,18 @@ void Gia_ObjComputeTruthTableTest( Gia_Man_t * p )
SeeAlso []
***********************************************************************/
int Gia_ObjCollectInternalCut_rec( Gia_Man_t * p, Gia_Obj_t * pObj )
void Gia_ObjCollectInternalCut_rec( Gia_Man_t * p, Gia_Obj_t * pObj )
{
if ( pObj->fMark0 )
return 0;
assert( Gia_ObjIsAnd(pObj) );
if ( Gia_ObjCollectInternalCut_rec( p, Gia_ObjFanin0(pObj) ) )
return 1;
if ( Gia_ObjCollectInternalCut_rec( p, Gia_ObjFanin1(pObj) ) )
return 1;
return;
pObj->fMark0 = 1;
assert( Gia_ObjIsAnd(pObj) );
Gia_ObjCollectInternalCut_rec( p, Gia_ObjFanin0(pObj) );
Gia_ObjCollectInternalCut_rec( p, Gia_ObjFanin1(pObj) );
Gia_ObjSetNum( p, pObj, Vec_IntSize(p->vTtNodes) );
Vec_IntPush( p->vTtNodes, Gia_ObjId(p, pObj) );
return (Vec_IntSize(p->vTtNodes) >= 254);
}
int Gia_ObjCollectInternalCut( Gia_Man_t * p, Gia_Obj_t * pRoot, Vec_Int_t * vLeaves )
void Gia_ObjCollectInternalCut( Gia_Man_t * p, Gia_Obj_t * pRoot, Vec_Int_t * vLeaves )
{
Gia_Obj_t * pObj;
int i;
......@@ -311,7 +299,7 @@ int Gia_ObjCollectInternalCut( Gia_Man_t * p, Gia_Obj_t * pRoot, Vec_Int_t * vLe
}
assert( pRoot->fMark0 == 0 ); // the root cannot be one of the leaves
Vec_IntClear( p->vTtNodes );
return Gia_ObjCollectInternalCut_rec( p, pRoot );
Gia_ObjCollectInternalCut_rec( p, pRoot );
}
/**Function*************************************************************
......@@ -329,17 +317,17 @@ void Gia_ObjComputeTruthTableStart( Gia_Man_t * p, int nVarsMax )
{
assert( p->vTtMemory == NULL );
p->nTtVars = nVarsMax;
p->nTtWords = (p->nTtVars <= 6 ? 1 : (1 << (p->nTtVars - 6)));
p->vTtNums = Vec_StrAlloc( Gia_ManObjNum(p) + 1000 );
p->nTtWords = Abc_Truth6WordNum( p->nTtVars );
p->vTtNums = Vec_IntAlloc( Gia_ManObjNum(p) + 1000 );
p->vTtNodes = Vec_IntAlloc( 256 );
p->vTtInputs = Vec_PtrAllocTruthTables( p->nTtVars );
p->vTtMemory = Vec_WrdStart( p->nTtWords * 256 );
p->vTtMemory = Vec_WrdStart( p->nTtWords * 64 );
}
void Gia_ObjComputeTruthTableStop( Gia_Man_t * p )
{
p->nTtVars = 0;
p->nTtWords = 0;
Vec_StrFreeP( &p->vTtNums );
Vec_IntFreeP( &p->vTtNums );
Vec_IntFreeP( &p->vTtNodes );
Vec_PtrFreeP( &p->vTtInputs );
Vec_WrdFreeP( &p->vTtMemory );
......@@ -364,21 +352,10 @@ word * Gia_ObjComputeTruthTableCut( Gia_Man_t * p, Gia_Obj_t * pRoot, Vec_Int_t
assert( p->vTtMemory != NULL );
assert( Vec_IntSize(vLeaves) <= p->nTtVars );
// collect internal nodes
if ( Gia_ObjCollectInternalCut( p, pRoot, vLeaves ) )
{
// unmark nodes makred by Gia_ObjCollectInternal()
Gia_ManForEachObjVec( p->vTtNodes, p, pTemp, i )
pTemp->fMark0 = 0;
// unmark leaves marked by Gia_ObjCollectInternal()
Gia_ManForEachObjVec( vLeaves, p, pTemp, i )
{
assert( pTemp->fMark0 == 1 );
pTemp->fMark0 = 0;
}
return NULL;
}
Gia_ObjCollectInternalCut( p, pRoot, vLeaves );
// compute the truth table for internal nodes
assert( Vec_IntSize(p->vTtNodes) < 254 );
if ( Vec_WrdSize(p->vTtMemory) < p->nTtWords * (Vec_IntSize(p->vTtNodes) + 2) )
Vec_WrdFillExtra( p->vTtMemory, p->nTtWords * (Vec_IntSize(p->vTtNodes) + 2), 0 );
Gia_ManForEachObjVec( p->vTtNodes, p, pTemp, i )
{
pTemp->fMark0 = 0; // unmark nodes marked by Gia_ObjCollectInternal()
......
src/aig/gia/module.make
......@@ -21,6 +21,7 @@ SRC += src/aig/gia/giaAig.c \
src/aig/gia/giaForce.c \
src/aig/gia/giaFrames.c \
src/aig/gia/giaFront.c \
src/aig/gia/giaFx.c \
src/aig/gia/giaGlitch.c \
src/aig/gia/giaHash.c \
src/aig/gia/giaIf.c \
......
src/base/abci/abc.c
......@@ -350,6 +350,7 @@ static int Abc_CommandAbc9Enable ( Abc_Frame_t * pAbc, int argc, cha
static int Abc_CommandAbc9Dc2 ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandAbc9Bidec ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandAbc9Shrink ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandAbc9Fx ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandAbc9Balance ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandAbc9Miter ( Abc_Frame_t * pAbc, int argc, char ** argv );
static int Abc_CommandAbc9Miter2 ( Abc_Frame_t * pAbc, int argc, char ** argv );
......@@ -909,6 +910,7 @@ void Abc_Init( Abc_Frame_t * pAbc )
Cmd_CommandAdd( pAbc, "ABC9", "&dc2", Abc_CommandAbc9Dc2, 0 );
Cmd_CommandAdd( pAbc, "ABC9", "&bidec", Abc_CommandAbc9Bidec, 0 );
Cmd_CommandAdd( pAbc, "ABC9", "&shrink", Abc_CommandAbc9Shrink, 0 );
Cmd_CommandAdd( pAbc, "ABC9", "&fx", Abc_CommandAbc9Fx, 0 );
Cmd_CommandAdd( pAbc, "ABC9", "&b", Abc_CommandAbc9Balance, 0 );
Cmd_CommandAdd( pAbc, "ABC9", "&miter", Abc_CommandAbc9Miter, 0 );
Cmd_CommandAdd( pAbc, "ABC9", "&miter2", Abc_CommandAbc9Miter2, 0 );
......@@ -27411,17 +27413,101 @@ usage:
SeeAlso []
***********************************************************************/
int Abc_CommandAbc9Fx( Abc_Frame_t * pAbc, int argc, char ** argv )
{
extern Gia_Man_t * Gia_ManPerformFx( Gia_Man_t * p, int nNewNodesMax, int LitCountMax, int fVerbose, int fVeryVerbose );
Gia_Man_t * pTemp;
int nNewNodesMax = 1000000;
int LitCountMax = 0;
int c, fVerbose = 0;
int fVeryVerbose = 0;
// set the defaults
Extra_UtilGetoptReset();
while ( (c = Extra_UtilGetopt(argc, argv, "NMvh")) != EOF )
{
switch (c)
{
case 'N':
if ( globalUtilOptind >= argc )
{
Abc_Print( -1, "Command line switch \"-N\" should be followed by an integer.\n" );
goto usage;
}
nNewNodesMax = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( nNewNodesMax < 0 )
goto usage;
break;
case 'M':
if ( globalUtilOptind >= argc )
{
Abc_Print( -1, "Command line switch \"-M\" should be followed by an integer.\n" );
goto usage;
}
LitCountMax = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( LitCountMax < 0 )
goto usage;
break;
case 'v':
fVerbose ^= 1;
break;
case 'h':
goto usage;
break;
default:
goto usage;
}
}
if ( pAbc->pGia == NULL )
{
Abc_Print( -1, "Abc_CommandAbc9Shrink(): There is no AIG.\n" );
return 1;
}
if ( !Gia_ManHasMapping(pAbc->pGia) )
{
Abc_Print( -1, "Abc_CommandAbc9Shrink(): Mapping of the AIG is not defined.\n" );
return 1;
}
pTemp = Gia_ManPerformFx( pAbc->pGia, nNewNodesMax, LitCountMax, fVerbose, fVeryVerbose );
if ( pTemp != NULL )
Abc_FrameUpdateGia( pAbc, pTemp );
else
Abc_Print( -1, "Abc_CommandAbc9Fx(): Command has failed.\n" );
return 0;
usage:
Abc_Print( -2, "usage: &fx [-NM <num>] [-vh]\n");
Abc_Print( -2, "\t extract shared logic using the classical \"fast_extract\" algorithm\n");
Abc_Print( -2, "\t-N <num> : max number of divisors to extract during this run [default = %d]\n", nNewNodesMax );
Abc_Print( -2, "\t-M <num> : upper bound on literal count of divisors to extract [default = %d]\n", LitCountMax );
Abc_Print( -2, "\t-v : print verbose information [default = %s]\n", fVerbose? "yes": "no" );
Abc_Print( -2, "\t-h : print the command usage\n");
return 1;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_CommandAbc9Balance( Abc_Frame_t * pAbc, int argc, char ** argv )
{
Gia_Man_t * pTemp = NULL;
int nNewNodesMax = ABC_INFINITY;
int fMultiExt = 0;
int fDelayOnly = 0;
int fSimpleAnd = 0;
int fKeepLevel = 0;
int c, fVerbose = 0;
int fVeryVerbose = 0;
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "Nealvwh" ) ) != EOF )
while ( ( c = Extra_UtilGetopt( argc, argv, "Ndalvwh" ) ) != EOF )
{
switch ( c )
{
......@@ -27436,8 +27522,8 @@ int Abc_CommandAbc9Balance( Abc_Frame_t * pAbc, int argc, char ** argv )
if ( nNewNodesMax < 0 )
goto usage;
break;
case 'e':
fMultiExt ^= 1;
case 'd':
fDelayOnly ^= 1;
break;
case 'a':
fSimpleAnd ^= 1;
......@@ -27467,20 +27553,20 @@ int Abc_CommandAbc9Balance( Abc_Frame_t * pAbc, int argc, char ** argv )
Abc_Print( -1, "Abc_CommandAbc9Balance(): The current AIG is mapped.\n" );
return 1;
}
if ( fMultiExt )
pTemp = Gia_ManMultiExtract( pAbc->pGia, fSimpleAnd, nNewNodesMax, fVerbose, fVeryVerbose );
else
if ( fDelayOnly )
pTemp = Gia_ManBalance( pAbc->pGia, fSimpleAnd, fVerbose );
else
pTemp = Gia_ManAreaBalance( pAbc->pGia, fSimpleAnd, nNewNodesMax, fVerbose, fVeryVerbose );
Abc_FrameUpdateGia( pAbc, pTemp );
return 0;
usage:
Abc_Print( -2, "usage: &b [-N num] [-ealvwh]\n" );
Abc_Print( -2, "\t performs AIG balancing to reduce delay\n" );
Abc_Print( -2, "usage: &b [-N num] [-davwh]\n" );
Abc_Print( -2, "\t performs AIG balancing to reduce delay and area\n" );
Abc_Print( -2, "\t-N num : the max fanout count to skip a divisor [default = %d]\n", nNewNodesMax );
Abc_Print( -2, "\t-e : toggle extacting shared logic while balancing [default = %s]\n", fMultiExt? "yes": "no" );
Abc_Print( -2, "\t-d : toggle delay only balancing [default = %s]\n", fDelayOnly? "yes": "no" );
Abc_Print( -2, "\t-a : toggle using AND instead of AND/XOR/MUX [default = %s]\n", fSimpleAnd? "yes": "no" );
Abc_Print( -2, "\t-l : toggle level update during shrinking [default = %s]\n", fKeepLevel? "yes": "no" );
// Abc_Print( -2, "\t-l : toggle level update during shrinking [default = %s]\n", fKeepLevel? "yes": "no" );
Abc_Print( -2, "\t-v : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" );
Abc_Print( -2, "\t-w : toggle printing additional information [default = %s]\n", fVeryVerbose? "yes": "no" );
Abc_Print( -2, "\t-h : print the command usage\n");
src/base/abci/abcFx.c
......@@ -481,12 +481,12 @@ static void Fx_PrintMatrix( Fx_Man_t * p )
}
static void Fx_PrintStats( Fx_Man_t * p, abctime clk )
{
printf( "Cubes =%7d ", Vec_WecSizeUsed(p->vCubes) );
printf( "Lits =%7d ", Vec_WecSizeUsed(p->vLits) );
printf( "Divs =%7d ", Hsh_VecSize(p->pHash) );
printf( "Divs+ =%7d ", Vec_QueSize(p->vPrio) );
printf( "Compl =%6d ", p->nDivMux[1] );
printf( "Extr =%6d ", p->nDivs );
printf( "Cubes =%8d ", Vec_WecSizeUsed(p->vCubes) );
printf( "Lits =%8d ", Vec_WecSizeUsed(p->vLits) );
printf( "Divs =%8d ", Hsh_VecSize(p->pHash) );
printf( "Divs+ =%8d ", Vec_QueSize(p->vPrio) );
printf( "Compl =%8d ", p->nDivMux[1] );
printf( "Extr =%7d ", p->nDivs );
// printf( "DivsS =%6d ", p->nDivsS );
// printf( "PairS =%6d ", p->nPairsS );
// printf( "PairD =%6d ", p->nPairsD );
......
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