luke
/
abc
mirror of https://github.com/YosysHQ/abc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Structural mapper into structures.

This commit is contained in:
Alan Mishchenko 2013-11-26 23:19:22 -08:00
parent a9eb8677fe
commit ee50e84e57
2 changed files with 65 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

89
src/aig/gia/giaIff.c
View File

@ -90,24 +90,24 @@ void Gia_ManIffStop( Iff_Man_t * p )
SeeAlso []
***********************************************************************/
int Gia_IffObjCount( Gia_Man_t * pGia, int iObj, int iFaninSkip, int iFaninSkip2 )
int Gia_IffObjCount( Gia_Man_t * pGia, int iObj, int iFaninSkip2, int iFaninSkip3 )
{
int i, iFanin, Count = 0;
Gia_ManIncrementTravId( pGia );
Gia_LutForEachFanin( pGia, iObj, iFanin, i )
{
if ( iFanin == iFaninSkip || iFanin == iFaninSkip2 )
if ( iFanin == iFaninSkip2 || iFanin == iFaninSkip3 )
continue;
if ( Gia_ObjIsTravIdCurrentId( pGia, iFanin ) )
continue;
Gia_ObjSetTravIdCurrentId( pGia, iFanin );
Count++;
}
if ( iFaninSkip >= 0 )
if ( iFaninSkip2 >= 0 )
{
Gia_LutForEachFanin( pGia, iFaninSkip, iFanin, i )
Gia_LutForEachFanin( pGia, iFaninSkip2, iFanin, i )
{
if ( iFanin == iFaninSkip2 )
if ( iFanin == iFaninSkip3 )
continue;
if ( Gia_ObjIsTravIdCurrentId( pGia, iFanin ) )
continue;
@ -115,11 +115,11 @@ int Gia_IffObjCount( Gia_Man_t * pGia, int iObj, int iFaninSkip, int iFaninSkip2
Count++;
}
}
if ( iFaninSkip2 >= 0 )
if ( iFaninSkip3 >= 0 )
{
Gia_LutForEachFanin( pGia, iFaninSkip2, iFanin, i )
Gia_LutForEachFanin( pGia, iFaninSkip3, iFanin, i )
{
if ( iFanin == iFaninSkip )
if ( iFanin == iFaninSkip2 )
continue;
if ( Gia_ObjIsTravIdCurrentId( pGia, iFanin ) )
continue;
@ -141,23 +141,23 @@ int Gia_IffObjCount( Gia_Man_t * pGia, int iObj, int iFaninSkip, int iFaninSkip2
SeeAlso []
***********************************************************************/
float Gia_IffObjTimeOne( Iff_Man_t * p, int iObj, int iFaninSkip, int iFaninSkip2 )
float Gia_IffObjTimeOne( Iff_Man_t * p, int iObj, int iFaninSkip2, int iFaninSkip3 )
{
int i, iFanin;
float DelayMax = -ABC_INFINITY;
Gia_LutForEachFanin( p->pGia, iObj, iFanin, i )
if ( iFanin != iFaninSkip && iFanin != iFaninSkip2 && DelayMax < Iff_ObjTimeId(p, iFanin) )
if ( iFanin != iFaninSkip2 && iFanin != iFaninSkip3 && DelayMax < Iff_ObjTimeId(p, iFanin) )
DelayMax = Iff_ObjTimeId(p, iFanin);
assert( i == Gia_ObjLutSize(p->pGia, iObj) );
if ( iFaninSkip == -1 )
return DelayMax;
Gia_LutForEachFanin( p->pGia, iFaninSkip, iFanin, i )
if ( iFanin != iFaninSkip2 && DelayMax < Iff_ObjTimeId(p, iFanin) )
DelayMax = Iff_ObjTimeId(p, iFanin);
if ( iFaninSkip2 == -1 )
return DelayMax;
Gia_LutForEachFanin( p->pGia, iFaninSkip2, iFanin, i )
if ( iFanin != iFaninSkip && DelayMax < Iff_ObjTimeId(p, iFanin) )
if ( iFanin != iFaninSkip3 && DelayMax < Iff_ObjTimeId(p, iFanin) )
DelayMax = Iff_ObjTimeId(p, iFanin);
if ( iFaninSkip3 == -1 )
return DelayMax;
Gia_LutForEachFanin( p->pGia, iFaninSkip3, iFanin, i )
if ( iFanin != iFaninSkip2 && DelayMax < Iff_ObjTimeId(p, iFanin) )
DelayMax = Iff_ObjTimeId(p, iFanin);
assert( DelayMax >= 0 );
return DelayMax;
@ -169,6 +169,8 @@ float Gia_IffObjTimeTwo( Iff_Man_t * p, int iObj, int * piFanin, float DelayMin
*piFanin = -1;
Gia_LutForEachFanin( p->pGia, iObj, iFanin, i )
{
if ( Gia_ObjIsCi(Gia_ManObj(p->pGia, iFanin)) )
continue;
This = Gia_IffObjTimeOne( p, iObj, iFanin, -1 );
nSize = Gia_IffObjCount( p->pGia, iObj, iFanin, -1 );
assert( nSize <= p->pLib->LutMax );
@ -192,6 +194,10 @@ float Gia_IffObjTimeThree( Iff_Man_t * p, int iObj, int * piFanin, int * piFanin
{
if ( iFanin == iFanin2 )
continue;
if ( Gia_ObjIsCi(Gia_ManObj(p->pGia, iFanin)) )
continue;
if ( Gia_ObjIsCi(Gia_ManObj(p->pGia, iFanin2)) )
continue;
This = Gia_IffObjTimeOne( p, iObj, iFanin, iFanin2 );
nSize = Gia_IffObjCount( p->pGia, iObj, iFanin, iFanin2 );
assert( nSize <= p->pLib->LutMax );
@ -223,7 +229,7 @@ Iff_Man_t * Gia_ManIffPerform( Gia_Man_t * pGia, If_LibLut_t * pLib, Tim_Man_t *
Gia_Obj_t * pObj;
int iObj, iFanin, iFanin1, iFanin2;
int CountAll = 0, Count2 = 0, Count3 = 0;
float arrTime1, arrTime2, arrTime3, arrBest = -ABC_INFINITY;
float arrTime1, arrTime2, arrTime3, arrMax = -ABC_INFINITY;
assert( nDegree == 2 || nDegree == 3 );
// start the mapping manager and set its parameters
p = Gia_ManIffStart( pGia );
@ -265,6 +271,7 @@ Iff_Man_t * Gia_ManIffPerform( Gia_Man_t * pGia, If_LibLut_t * pLib, Tim_Man_t *
Iff_ObjSetMatchId( p, iObj, 2, iFanin ), Count2++;
else
{
assert( arrTime3 < arrTime2 );
Iff_ObjSetMatchId( p, iObj, 2, iFanin1 );
Iff_ObjSetMatchId( p, iObj, 3, iFanin2 ), Count3++;
}
@ -281,12 +288,12 @@ Iff_Man_t * Gia_ManIffPerform( Gia_Man_t * pGia, If_LibLut_t * pLib, Tim_Man_t *
arrTime1 = Iff_ObjTimeId( p, Gia_ObjFaninId0p(pGia, pObj) );
Tim_ManSetCoArrival( pTime, Gia_ObjCioId(pObj), arrTime1 );
Iff_ObjSetTime( p, pObj, arrTime1 );
arrBest = Abc_MaxFloat( arrBest, arrTime1 );
arrMax = Abc_MaxFloat( arrMax, arrTime1 );
}
else assert( 0 );
}
printf( "Max delay = %.2f. Count1 = %d. Count2 = %d. Count3 = %d.\n",
arrBest, CountAll - Count2 - Count3, Count2, Count3 );
arrMax, CountAll - Count2 - Count3, Count2, Count3 );
return p;
}
@ -303,48 +310,48 @@ Iff_Man_t * Gia_ManIffPerform( Gia_Man_t * pGia, If_LibLut_t * pLib, Tim_Man_t *
***********************************************************************/
void Gia_ManIffSelect_rec( Iff_Man_t * p, int iObj, Vec_Int_t * vPacking )
{
int i, iFanin, iFaninSkip, iFaninSkip2;
int i, iFanin, iFaninSkip2, iFaninSkip3;
if ( Gia_ObjIsTravIdCurrentId( p->pGia, iObj ) )
return;
Gia_ObjSetTravIdCurrentId( p->pGia, iObj );
assert( Gia_ObjIsLut(p->pGia, iObj) );
iFaninSkip = Iff_ObjMatchId(p, iObj, 2);
iFaninSkip2 = Iff_ObjMatchId(p, iObj, 3);
if ( iFaninSkip == -1 )
iFaninSkip2 = Iff_ObjMatchId(p, iObj, 2);
iFaninSkip3 = Iff_ObjMatchId(p, iObj, 3);
if ( iFaninSkip2 == -1 )
{
assert( iFaninSkip2 == -1 );
assert( iFaninSkip3 == -1 );
Gia_LutForEachFanin( p->pGia, iObj, iFanin, i )
Gia_ManIffSelect_rec( p, iFanin, vPacking );
Vec_IntPush( vPacking, 1 );
Vec_IntPush( vPacking, iObj );
}
else if ( iFaninSkip2 == -1 )
else if ( iFaninSkip3 == -1 )
{
assert( iFaninSkip > 0 );
assert( iFaninSkip2 > 0 );
Gia_LutForEachFanin( p->pGia, iObj, iFanin, i )
if ( iFanin != iFaninSkip )
if ( iFanin != iFaninSkip2 )
Gia_ManIffSelect_rec( p, iFanin, vPacking );
Gia_LutForEachFanin( p->pGia, iFaninSkip, iFanin, i )
Gia_LutForEachFanin( p->pGia, iFaninSkip2, iFanin, i )
Gia_ManIffSelect_rec( p, iFanin, vPacking );
Vec_IntPush( vPacking, 2 );
Vec_IntPush( vPacking, iFaninSkip );
Vec_IntPush( vPacking, iFaninSkip2 );
Vec_IntPush( vPacking, iObj );
}
else
{
assert( iFaninSkip > 0 && iFaninSkip2 > 0 );
assert( iFaninSkip2 > 0 && iFaninSkip3 > 0 );
Gia_LutForEachFanin( p->pGia, iObj, iFanin, i )
if ( iFanin != iFaninSkip && iFanin != iFaninSkip2 )
Gia_ManIffSelect_rec( p, iFanin, vPacking );
Gia_LutForEachFanin( p->pGia, iFaninSkip, iFanin, i )
if ( iFanin != iFaninSkip2 )
if ( iFanin != iFaninSkip2 && iFanin != iFaninSkip3 )
Gia_ManIffSelect_rec( p, iFanin, vPacking );
Gia_LutForEachFanin( p->pGia, iFaninSkip2, iFanin, i )
if ( iFanin != iFaninSkip )
if ( iFanin != iFaninSkip3 )
Gia_ManIffSelect_rec( p, iFanin, vPacking );
Gia_LutForEachFanin( p->pGia, iFaninSkip3, iFanin, i )
if ( iFanin != iFaninSkip2 )
Gia_ManIffSelect_rec( p, iFanin, vPacking );
Vec_IntPush( vPacking, 3 );
Vec_IntPush( vPacking, iFaninSkip );
Vec_IntPush( vPacking, iFaninSkip2 );
Vec_IntPush( vPacking, iFaninSkip3 );
Vec_IntPush( vPacking, iObj );
}
Vec_IntAddToEntry( vPacking, 0, 1 );
@ -357,7 +364,7 @@ Vec_Int_t * Gia_ManIffSelect( Iff_Man_t * p )
Vec_IntPush( vPacking, 0 );
// mark const0 and PIs
Gia_ManIncrementTravId( p->pGia );
Gia_ObjSetTravIdCurrent( p->pGia, Gia_ManConst0(p->pGia) );
Gia_ObjSetTravIdCurrentId( p->pGia, 0 );
Gia_ManForEachCi( p->pGia, pObj, i )
Gia_ObjSetTravIdCurrent( p->pGia, pObj );
// recursively collect internal nodes
@ -380,6 +387,7 @@ Vec_Int_t * Gia_ManIffSelect( Iff_Man_t * p )
void Gia_ManIffTest( Gia_Man_t * pGia, If_LibLut_t * pLib, int fVerbose )
{
Iff_Man_t * p;
Tim_Man_t * pTemp = NULL;
int nDegree = -1;
int nLutSize = Gia_ManLutSizeMax( pGia );
if ( nLutSize <= 4 )
@ -411,10 +419,13 @@ void Gia_ManIffTest( Gia_Man_t * pGia, If_LibLut_t * pLib, int fVerbose )
printf( "Performing %d-clustering with %d-LUTs:\n", nDegree, nLutSize );
// create timing manager
if ( pGia->pManTime == NULL )
pGia->pManTime = Tim_ManStart( Gia_ManCiNum(pGia), Gia_ManCoNum(pGia) );
pGia->pManTime = pTemp = Tim_ManStart( Gia_ManCiNum(pGia), Gia_ManCoNum(pGia) );
// perform timing computation
p = Gia_ManIffPerform( pGia, pLib, pGia->pManTime, nLutSize, nDegree );
Tim_ManStopP( (Tim_Man_t **)&pGia->pManTime );
// remove timing manager
if ( pGia->pManTime == pTemp )
pGia->pManTime = NULL;
Tim_ManStopP( (Tim_Man_t **)&pTemp );
// derive clustering
Vec_IntFreeP( &pGia->vPacking );
pGia->vPacking = Gia_ManIffSelect( p );

18
src/base/abci/abc.c
View File

@ -29833,7 +29833,7 @@ int Abc_CommandAbc9If( Abc_Frame_t * pAbc, int argc, char ** argv )
}
pPars->pLutLib = (If_LibLut_t *)pAbc->pLibLut;
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "KCFAGRDEWSqalepmrsdbgyojikfuztvh" ) ) != EOF )
while ( ( c = Extra_UtilGetopt( argc, argv, "KCFAGRDEWSTqalepmrsdbgyojikfuztvh" ) ) != EOF )
{
switch ( c )
{
@ -29952,6 +29952,17 @@ int Abc_CommandAbc9If( Abc_Frame_t * pAbc, int argc, char ** argv )
goto usage;
}
break;
case 'T':
if ( globalUtilOptind >= argc )
{
Abc_Print( -1, "Command line switch \"-T\" should be followed by a positive integer 0,1,or 2.\n" );
goto usage;
}
pPars->nStructType = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( pPars->nStructType < 0 || pPars->nStructType > 2 )
goto usage;
break;
case 'q':
pPars->fPreprocess ^= 1;
break;
@ -30212,7 +30223,7 @@ usage:
sprintf(LutSize, "library" );
else
sprintf(LutSize, "%d", pPars->nLutSize );
Abc_Print( -2, "usage: &if [-KCFAGR num] [-DEW float] [-S str] [-qarlepmsdbgyojikfucztvh]\n" );
Abc_Print( -2, "usage: &if [-KCFAGRT num] [-DEW float] [-S str] [-qarlepmsdbgyojikfucztvh]\n" );
Abc_Print( -2, "\t performs FPGA technology mapping of the network\n" );
Abc_Print( -2, "\t-K num : the number of LUT inputs (2 < num < %d) [default = %s]\n", IF_MAX_LUTSIZE+1, LutSize );
Abc_Print( -2, "\t-C num : the max number of priority cuts (0 < num < 2^12) [default = %d]\n", pPars->nCutsMax );
@ -30224,6 +30235,7 @@ usage:
Abc_Print( -2, "\t-E float : sets epsilon used for tie-breaking [default = %f]\n", pPars->Epsilon );
Abc_Print( -2, "\t-W float : sets wire delay between adjects LUTs [default = %f]\n", pPars->WireDelay );
Abc_Print( -2, "\t-S str : string representing the LUT structure [default = %s]\n", pPars->pLutStruct ? pPars->pLutStruct : "not used" );
Abc_Print( -2, "\t-T num : the type of LUT structures [default = any]\n", pPars->nStructType );
Abc_Print( -2, "\t-q : toggles preprocessing using several starting points [default = %s]\n", pPars->fPreprocess? "yes": "no" );
Abc_Print( -2, "\t-a : toggles area-oriented mapping [default = %s]\n", pPars->fArea? "yes": "no" );
Abc_Print( -2, "\t-r : enables expansion/reduction of the best cuts [default = %s]\n", pPars->fExpRed? "yes": "no" );
@ -30263,7 +30275,7 @@ usage:
int Abc_CommandAbc9Iff( Abc_Frame_t * pAbc, int argc, char ** argv )
{
extern void Gia_ManIffTest( Gia_Man_t * pGia, If_LibLut_t * pLib, int fVerbose );
int c, fVerbose = 1;
int c, fVerbose = 0;
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "vh" ) ) != EOF )
{