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Experiments with function enumeration.

This commit is contained in:
Alan Mishchenko 2018-08-01 22:05:54 -08:00
parent cc4e0be71b
commit 905a627758
1 changed files with 8 additions and 7 deletions
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15
src/opt/dau/dauNpn.c
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@ -28,7 +28,7 @@ ABC_NAMESPACE_IMPL_START
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
#define USE4VARS 1
//#define USE4VARS 1
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
@ -154,13 +154,14 @@ void Dau_AddFunction( word tCur, int nVars, unsigned * pTable, Vec_Int_t * vNpns
int Digit = (1 << nVars)-1;
word tMask = Abc_Tt6Mask( 1 << nVars );
word tNorm = (tCur >> Digit) & 1 ? ~tCur : tCur;
unsigned t = (unsigned)tNorm & tMask;
unsigned tRep = pTable[t];
unsigned t = (unsigned)(tNorm & tMask);
unsigned tRep = pTable[t];
unsigned tRep2 = pTable[tRep & 0x7FFFFFFF];
assert( ((tNorm >> Digit) & 1) == 0 );
if ( (tRep >> 31) == 0 ) // first time
if ( (tRep2 >> 31) == 0 ) // first time
{
Vec_IntPush( vNpns, tRep );
pTable[tRep] |= (1 << 31);
Vec_IntPush( vNpns, tRep2 );
pTable[tRep & 0x7FFFFFFF] = tRep2 | (1 << 31);
}
}
@ -263,7 +264,7 @@ void Dau_NetworkEnum()
}
void Dau_NetworkEnumTest()
{
Dau_TruthEnum();
//Dau_TruthEnum();
Dau_NetworkEnum();
}