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Improvements to the truth table computations.

This commit is contained in:
Alan Mishchenko 2012-10-31 01:22:16 -07:00
parent 6f3425150b
commit d8e84ce666
1 changed files with 4 additions and 2 deletions
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6
src/misc/util/utilTruth.h
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@ -1004,6 +1004,8 @@ static inline int Abc_TtCountOnesSlow( word t )
}
static inline int Abc_TtCountOnes( word x )
{
if ( x == 0 )
return 0;
x = x - ((x >> 1) & 0x5555555555555555);
x = (x & 0x3333333333333333) + ((x >> 2) & 0x3333333333333333);
x = (x + (x >> 4)) & 0x0F0F0F0F0F0F0F0F;
@ -1118,8 +1120,8 @@ static inline unsigned Abc_TtSemiCanonicize( word * pTruth, int nVars, char * pC
uCanonPhase |= (1 << nVars);
}
// normalize phase
// Abc_TtCountOnesInCofs( pTruth, nVars, pStore );
Abc_TtCountOnesInCofsFast( pTruth, nVars, pStore );
Abc_TtCountOnesInCofs( pTruth, nVars, pStore );
// Abc_TtCountOnesInCofsFast( pTruth, nVars, pStore );
// Abc_TtCountOnesInCofsFast( pTruth, nVars, pStore2 );
// for ( i = 0; i < nVars; i++ )