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Enabling LUT decomposition in two special cases.

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This commit is contained in:
Alan Mishchenko
2013-08-14 12:10:55 -07:00
parent 1eae17a89d
commit 0916417e2e
3 changed files with 55 additions and 38 deletions
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src/map/if/ifDec75.c
+4 -2
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@@ -306,13 +306,15 @@ int If_CutPerformCheck75( If_Man_t * p, unsigned * pTruth0, int nVars, int nLeav
word * pTruthW = (word *)pTruth0;
word pTruth[4] = { pTruthW[0], pTruthW[1], pTruthW[2], pTruthW[3] };
assert( nLeaves <= 8 );
Abc_TtMinimumBase( pTruth, NULL, nLeaves, &nLeaves );
if ( !p->pPars->fCutMin )
Abc_TtMinimumBase( pTruth, NULL, nLeaves, &nLeaves );
if ( nLeaves < 6 )
return 1;
// if ( nLeaves < 8 && If_CutPerformCheck07( p, (unsigned *)pTruth, nVars, nLeaves, "44" ) )
if ( nLeaves < 8 && If_CutPerformCheck16( p, (unsigned *)pTruth, nVars, nLeaves, "44" ) )
return 1;
if ( p->pPars->fEnableCheck75 && nLeaves == 8 )
// this is faster but not compatible with -z
if ( !p->pPars->fDeriveLuts && p->pPars->fEnableCheck75 && nLeaves == 8 )
{
// char pDsdStr[1000] = "(!(abd)!(c!([fe][gh])))";
char pDsdStr[1000];