Specializing some truth-table functions to 6 inputs.

This commit is contained in:
Alan Mishchenko 2014-06-14 18:29:19 -07:00
parent b801ec1997
commit 0ac22c9e1d
6 changed files with 123 additions and 85 deletions

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@ -250,6 +250,7 @@ struct Jf_Par_t_
int nCutNum;
int nProcNum;
int nRounds;
int nRoundsEla;
int nRelaxRatio;
int nVerbLimit;
int DelayTarget;

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@ -1072,8 +1072,8 @@ int Jf_TtComputeForCut( Jf_Man_t * p, int iFuncLit0, int iFuncLit1, int * pCut0,
word * pTruth1 = Vec_MemReadEntry(p->vTtMem, Abc_Lit2Var(iFuncLit1));
Abc_TtCopy( uTruth0, pTruth0, nWords, Abc_LitIsCompl(iFuncLit0) );
Abc_TtCopy( uTruth1, pTruth1, nWords, Abc_LitIsCompl(iFuncLit1) );
Abc_TtStretch( uTruth0, LutSize, pCut0 + 1, Jf_CutSize(pCut0), pCutOut + 1, Jf_CutSize(pCutOut) );
Abc_TtStretch( uTruth1, LutSize, pCut1 + 1, Jf_CutSize(pCut1), pCutOut + 1, Jf_CutSize(pCutOut) );
Abc_TtExpand( uTruth0, LutSize, pCut0 + 1, Jf_CutSize(pCut0), pCutOut + 1, Jf_CutSize(pCutOut) );
Abc_TtExpand( uTruth1, LutSize, pCut1 + 1, Jf_CutSize(pCut1), pCutOut + 1, Jf_CutSize(pCutOut) );
fCompl = (int)(uTruth0[0] & uTruth1[0] & 1);
Abc_TtAnd( uTruth, uTruth0, uTruth1, nWords, fCompl );
pCutOut[0] = Abc_TtMinBase( uTruth, pCutOut + 1, pCutOut[0], LutSize );

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@ -768,8 +768,8 @@ int Kf_SetComputeTruth( Kf_Man_t * p, int iFuncLit0, int iFuncLit1, int * pCut0,
word * pTruth1 = Vec_MemReadEntry(p->vTtMem, Abc_Lit2Var(iFuncLit1));
Abc_TtCopy( uTruth0, pTruth0, nWords, Abc_LitIsCompl(iFuncLit0) );
Abc_TtCopy( uTruth1, pTruth1, nWords, Abc_LitIsCompl(iFuncLit1) );
Abc_TtStretch( uTruth0, LutSize, pCut0 + 1, Kf_CutSize(pCut0), pCutOut + 1, Kf_CutSize(pCutOut) );
Abc_TtStretch( uTruth1, LutSize, pCut1 + 1, Kf_CutSize(pCut1), pCutOut + 1, Kf_CutSize(pCutOut) );
Abc_TtExpand( uTruth0, LutSize, pCut0 + 1, Kf_CutSize(pCut0), pCutOut + 1, Kf_CutSize(pCutOut) );
Abc_TtExpand( uTruth1, LutSize, pCut1 + 1, Kf_CutSize(pCut1), pCutOut + 1, Kf_CutSize(pCutOut) );
fCompl = (int)(uTruth0[0] & uTruth1[0] & 1);
Abc_TtAnd( uTruth, uTruth0, uTruth1, nWords, fCompl );
pCutOut[0] = Abc_TtMinBase( uTruth, pCutOut + 1, pCutOut[0], LutSize );

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@ -30861,7 +30861,7 @@ int Abc_CommandAbc9Lf( Abc_Frame_t * pAbc, int argc, char ** argv )
Gia_Man_t * pNew; int c;
Lf_ManSetDefaultPars( pPars );
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "KCFRDWaekmdcgtspvwh" ) ) != EOF )
while ( ( c = Extra_UtilGetopt( argc, argv, "KCFARDWaekmgpvwh" ) ) != EOF )
{
switch ( c )
{
@ -30904,6 +30904,17 @@ int Abc_CommandAbc9Lf( Abc_Frame_t * pAbc, int argc, char ** argv )
if ( pPars->nRounds < 0 )
goto usage;
break;
case 'A':
if ( globalUtilOptind >= argc )
{
Abc_Print( -1, "Command line switch \"-A\" should be followed by a positive integer.\n" );
goto usage;
}
pPars->nRoundsEla = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( pPars->nRoundsEla < 0 )
goto usage;
break;
case 'R':
if ( globalUtilOptind >= argc )
{
@ -30949,21 +30960,9 @@ int Abc_CommandAbc9Lf( Abc_Frame_t * pAbc, int argc, char ** argv )
case 'm':
pPars->fCutMin ^= 1;
break;
case 'd':
pPars->fFuncDsd ^= 1;
break;
case 'c':
pPars->fGenCnf ^= 1;
break;
case 'g':
pPars->fPureAig ^= 1;
break;
case 't':
pPars->fCutHashing ^= 1;
break;
case 's':
pPars->fCutSimple ^= 1;
break;
case 'p':
pPars->fPower ^= 1;
break;
@ -30999,23 +30998,19 @@ usage:
sprintf(Buffer, "best possible" );
else
sprintf(Buffer, "%d", pPars->DelayTarget );
Abc_Print( -2, "usage: &lf [-KCFRDW num] [-akmdcgtspvwh]\n" );
Abc_Print( -2, "usage: &lf [-KCFARD num] [-akmgpvwh]\n" );
Abc_Print( -2, "\t performs technology mapping of the network\n" );
Abc_Print( -2, "\t-K num : LUT size for the mapping (2 <= K <= %d) [default = %d]\n", pPars->nLutSizeMax, pPars->nLutSize );
Abc_Print( -2, "\t-C num : the max number of priority cuts (1 <= C <= %d) [default = %d]\n", pPars->nCutNumMax, pPars->nCutNum );
Abc_Print( -2, "\t-F num : the number of mapping rounds [default = %d]\n", pPars->nRounds );
Abc_Print( -2, "\t-F num : the number of area flow rounds [default = %d]\n", pPars->nRounds );
Abc_Print( -2, "\t-A num : the number of exact area rounds [default = %d]\n", pPars->nRoundsEla );
Abc_Print( -2, "\t-R num : the delay relaxation ratio (num >= 0) [default = %d]\n", pPars->nRelaxRatio );
Abc_Print( -2, "\t-D num : sets the delay constraint for the mapping [default = %s]\n", Buffer );
Abc_Print( -2, "\t-W num : min frequency when printing functions with \"-w\" [default = %d]\n", pPars->nVerbLimit );
Abc_Print( -2, "\t-a : toggles area-oriented mapping [default = %s]\n", pPars->fAreaOnly? "yes": "no" );
Abc_Print( -2, "\t-e : toggles edge vs node minimization [default = %s]\n", pPars->fOptEdge? "yes": "no" );
Abc_Print( -2, "\t-k : toggles coarsening the subject graph [default = %s]\n", pPars->fCoarsen? "yes": "no" );
Abc_Print( -2, "\t-m : toggles cut minimization [default = %s]\n", pPars->fCutMin? "yes": "no" );
Abc_Print( -2, "\t-d : toggles using DSD to represent cut functions [default = %s]\n", pPars->fFuncDsd? "yes": "no" );
Abc_Print( -2, "\t-c : toggles mapping for CNF generation [default = %s]\n", pPars->fGenCnf? "yes": "no" );
Abc_Print( -2, "\t-g : toggles generating AIG without mapping [default = %s]\n", pPars->fPureAig? "yes": "no" );
Abc_Print( -2, "\t-t : toggles cut computation using hash table [default = %s]\n", pPars->fCutHashing? "yes": "no" );
Abc_Print( -2, "\t-s : toggles cut computation using a simple method [default = %s]\n", pPars->fCutSimple? "yes": "no" );
Abc_Print( -2, "\t-p : uses power-aware cut selection heuristics [default = %s]\n", pPars->fPower? "yes": "no" );
Abc_Print( -2, "\t-v : toggles verbose output [default = %s]\n", pPars->fVerbose? "yes": "no" );
Abc_Print( -2, "\t-w : toggles very verbose output [default = %s]\n", pPars->fVeryVerbose? "yes": "no" );

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@ -108,8 +108,8 @@ int If_CutComputeTruth( If_Man_t * p, If_Cut_t * pCut, If_Cut_t * pCut0, If_Cut_
Abc_TtCopy( pTruth1, pTruth1s, nWords, fCompl1 ^ pCut1->fCompl ^ Abc_LitIsCompl(pCut1->iCutFunc) );
Abc_TtStretch6( pTruth0, pCut0->nLeaves, pCut->nLeaves );
Abc_TtStretch6( pTruth1, pCut1->nLeaves, pCut->nLeaves );
Abc_TtStretch( pTruth0, pCut->nLeaves, pCut0->pLeaves, pCut0->nLeaves, pCut->pLeaves, pCut->nLeaves );
Abc_TtStretch( pTruth1, pCut->nLeaves, pCut1->pLeaves, pCut1->nLeaves, pCut->pLeaves, pCut->nLeaves );
Abc_TtExpand( pTruth0, pCut->nLeaves, pCut0->pLeaves, pCut0->nLeaves, pCut->pLeaves, pCut->nLeaves );
Abc_TtExpand( pTruth1, pCut->nLeaves, pCut1->pLeaves, pCut1->nLeaves, pCut->pLeaves, pCut->nLeaves );
fCompl = (pTruth0[0] & pTruth1[0] & 1);
Abc_TtAnd( pTruth, pTruth0, pTruth1, nWords, fCompl );
if ( p->pPars->fCutMin && (pCut0->nLeaves + pCut1->nLeaves > pCut->nLeaves || pCut0->nLeaves == 0 || pCut1->nLeaves == 0) )

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@ -61,6 +61,49 @@ static word s_PMasks[5][3] = {
{ ABC_CONST(0xFFFF00000000FFFF), ABC_CONST(0x00000000FFFF0000), ABC_CONST(0x0000FFFF00000000) }
};
static word Ps_PMasks[5][6][3] = {
{
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 0 0
{ ABC_CONST(0x9999999999999999), ABC_CONST(0x2222222222222222), ABC_CONST(0x4444444444444444) }, // 0 1
{ ABC_CONST(0xA5A5A5A5A5A5A5A5), ABC_CONST(0x0A0A0A0A0A0A0A0A), ABC_CONST(0x5050505050505050) }, // 0 2
{ ABC_CONST(0xAA55AA55AA55AA55), ABC_CONST(0x00AA00AA00AA00AA), ABC_CONST(0x5500550055005500) }, // 0 3
{ ABC_CONST(0xAAAA5555AAAA5555), ABC_CONST(0x0000AAAA0000AAAA), ABC_CONST(0x5555000055550000) }, // 0 4
{ ABC_CONST(0xAAAAAAAA55555555), ABC_CONST(0x00000000AAAAAAAA), ABC_CONST(0x5555555500000000) } // 0 5
},
{
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 1 0
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 1 1
{ ABC_CONST(0xC3C3C3C3C3C3C3C3), ABC_CONST(0x0C0C0C0C0C0C0C0C), ABC_CONST(0x3030303030303030) }, // 1 2
{ ABC_CONST(0xCC33CC33CC33CC33), ABC_CONST(0x00CC00CC00CC00CC), ABC_CONST(0x3300330033003300) }, // 1 3
{ ABC_CONST(0xCCCC3333CCCC3333), ABC_CONST(0x0000CCCC0000CCCC), ABC_CONST(0x3333000033330000) }, // 1 4
{ ABC_CONST(0xCCCCCCCC33333333), ABC_CONST(0x00000000CCCCCCCC), ABC_CONST(0x3333333300000000) } // 1 5
},
{
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 2 0
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 2 1
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 2 2
{ ABC_CONST(0xF00FF00FF00FF00F), ABC_CONST(0x00F000F000F000F0), ABC_CONST(0x0F000F000F000F00) }, // 2 3
{ ABC_CONST(0xF0F00F0FF0F00F0F), ABC_CONST(0x0000F0F00000F0F0), ABC_CONST(0x0F0F00000F0F0000) }, // 2 4
{ ABC_CONST(0xF0F0F0F00F0F0F0F), ABC_CONST(0x00000000F0F0F0F0), ABC_CONST(0x0F0F0F0F00000000) } // 2 5
},
{
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 3 0
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 3 1
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 3 2
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 3 3
{ ABC_CONST(0xFF0000FFFF0000FF), ABC_CONST(0x0000FF000000FF00), ABC_CONST(0x00FF000000FF0000) }, // 3 4
{ ABC_CONST(0xFF00FF0000FF00FF), ABC_CONST(0x00000000FF00FF00), ABC_CONST(0x00FF00FF00000000) } // 3 5
},
{
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 4 0
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 4 1
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 4 2
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 4 3
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 4 4
{ ABC_CONST(0xFFFF00000000FFFF), ABC_CONST(0x00000000FFFF0000), ABC_CONST(0x0000FFFF00000000) } // 4 5
}
};
// the bit count for the first 256 integer numbers
static int Abc_TtBitCount8[256] = {
0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,
@ -985,50 +1028,15 @@ static inline void Abc_TtSwapAdjacent( word * pTruth, int nWords, int iVar )
ABC_SWAP( word, pTruth[i + iStep], pTruth[i + 2*iStep] );
}
}
static inline word Abc_Tt6SwapVars( word t, int iVar, int jVar )
{
word * s_PMasks = Ps_PMasks[iVar][jVar];
int shift = (1 << jVar) - (1 << iVar);
assert( iVar < jVar );
return (t & s_PMasks[0]) | ((t & s_PMasks[1]) << shift) | ((t & s_PMasks[2]) >> shift);
}
static inline void Abc_TtSwapVars( word * pTruth, int nVars, int iVar, int jVar )
{
static word Ps_PMasks[5][6][3] = {
{
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 0 0
{ ABC_CONST(0x9999999999999999), ABC_CONST(0x2222222222222222), ABC_CONST(0x4444444444444444) }, // 0 1
{ ABC_CONST(0xA5A5A5A5A5A5A5A5), ABC_CONST(0x0A0A0A0A0A0A0A0A), ABC_CONST(0x5050505050505050) }, // 0 2
{ ABC_CONST(0xAA55AA55AA55AA55), ABC_CONST(0x00AA00AA00AA00AA), ABC_CONST(0x5500550055005500) }, // 0 3
{ ABC_CONST(0xAAAA5555AAAA5555), ABC_CONST(0x0000AAAA0000AAAA), ABC_CONST(0x5555000055550000) }, // 0 4
{ ABC_CONST(0xAAAAAAAA55555555), ABC_CONST(0x00000000AAAAAAAA), ABC_CONST(0x5555555500000000) } // 0 5
},
{
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 1 0
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 1 1
{ ABC_CONST(0xC3C3C3C3C3C3C3C3), ABC_CONST(0x0C0C0C0C0C0C0C0C), ABC_CONST(0x3030303030303030) }, // 1 2
{ ABC_CONST(0xCC33CC33CC33CC33), ABC_CONST(0x00CC00CC00CC00CC), ABC_CONST(0x3300330033003300) }, // 1 3
{ ABC_CONST(0xCCCC3333CCCC3333), ABC_CONST(0x0000CCCC0000CCCC), ABC_CONST(0x3333000033330000) }, // 1 4
{ ABC_CONST(0xCCCCCCCC33333333), ABC_CONST(0x00000000CCCCCCCC), ABC_CONST(0x3333333300000000) } // 1 5
},
{
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 2 0
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 2 1
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 2 2
{ ABC_CONST(0xF00FF00FF00FF00F), ABC_CONST(0x00F000F000F000F0), ABC_CONST(0x0F000F000F000F00) }, // 2 3
{ ABC_CONST(0xF0F00F0FF0F00F0F), ABC_CONST(0x0000F0F00000F0F0), ABC_CONST(0x0F0F00000F0F0000) }, // 2 4
{ ABC_CONST(0xF0F0F0F00F0F0F0F), ABC_CONST(0x00000000F0F0F0F0), ABC_CONST(0x0F0F0F0F00000000) } // 2 5
},
{
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 3 0
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 3 1
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 3 2
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 3 3
{ ABC_CONST(0xFF0000FFFF0000FF), ABC_CONST(0x0000FF000000FF00), ABC_CONST(0x00FF000000FF0000) }, // 3 4
{ ABC_CONST(0xFF00FF0000FF00FF), ABC_CONST(0x00000000FF00FF00), ABC_CONST(0x00FF00FF00000000) } // 3 5
},
{
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 4 0
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 4 1
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 4 2
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 4 3
{ ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000), ABC_CONST(0x0000000000000000) }, // 4 4
{ ABC_CONST(0xFFFF00000000FFFF), ABC_CONST(0x00000000FFFF0000), ABC_CONST(0x0000FFFF00000000) } // 4 5
}
};
if ( iVar == jVar )
return;
if ( jVar < iVar )
@ -1036,9 +1044,7 @@ static inline void Abc_TtSwapVars( word * pTruth, int nVars, int iVar, int jVar
assert( iVar < jVar && jVar < nVars );
if ( nVars <= 6 )
{
word * s_PMasks = Ps_PMasks[iVar][jVar];
int shift = (1 << jVar) - (1 << iVar);
pTruth[0] = (pTruth[0] & s_PMasks[0]) | ((pTruth[0] & s_PMasks[1]) << shift) | ((pTruth[0] & s_PMasks[2]) >> shift);
pTruth[0] = Abc_Tt6SwapVars( pTruth[0], iVar, jVar );
return;
}
if ( jVar <= 5 )
@ -1146,6 +1152,56 @@ static inline int Abc_TtMinimumBase( word * t, int * pSupp, int nVarsAll, int *
SeeAlso []
***********************************************************************/
static inline word Abc_Tt6Expand( word t, int * pCut0, int nCutSize0, int * pCut, int nCutSize )
{
int i, k;
for ( i = nCutSize - 1, k = nCutSize0 - 1; i >= 0 && k >= 0; i-- )
{
if ( pCut[i] > pCut0[k] )
continue;
assert( pCut[i] == pCut0[k] );
if ( k < i )
t = Abc_Tt6SwapVars( t, k, i );
k--;
}
assert( k == -1 );
return t;
}
static inline void Abc_TtExpand( word * pTruth0, int nVars, int * pCut0, int nCutSize0, int * pCut, int nCutSize )
{
int i, k;
for ( i = nCutSize - 1, k = nCutSize0 - 1; i >= 0 && k >= 0; i-- )
{
if ( pCut[i] > pCut0[k] )
continue;
assert( pCut[i] == pCut0[k] );
if ( k < i )
Abc_TtSwapVars( pTruth0, nVars, k, i );
k--;
}
assert( k == -1 );
}
static inline int Abc_Tt6MinBase( word * pTruth, int * pVars, int nVars )
{
word t = *pTruth;
int i, k;
for ( i = k = 0; i < nVars; i++ )
{
if ( !Abc_Tt6HasVar( t, i ) )
continue;
if ( k < i )
{
if ( pVars ) pVars[k] = pVars[i];
t = Abc_Tt6SwapVars( t, k, i );
}
k++;
}
if ( k == nVars )
return k;
assert( k < nVars );
*pTruth = t;
return k;
}
static inline int Abc_TtMinBase( word * pTruth, int * pVars, int nVars, int nVarsAll )
{
int i, k;
@ -1167,20 +1223,6 @@ static inline int Abc_TtMinBase( word * pTruth, int * pVars, int nVars, int nVar
// assert( k == Abc_TtSupportSize(pTruth, nVars) );
return k;
}
static inline void Abc_TtStretch( word * pTruth0, int nVars, int * pCut0, int nCutSize0, int * pCut, int nCutSize )
{
int i, k;
for ( i = nCutSize - 1, k = nCutSize0 - 1; i >= 0 && k >= 0; i-- )
{
if ( pCut[i] > pCut0[k] )
continue;
assert( pCut[i] == pCut0[k] );
if ( k < i )
Abc_TtSwapVars( pTruth0, nVars, k, i );
k--;
}
assert( k == -1 );
}
/**Function*************************************************************