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Improved gate-sizing.

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Alan Mishchenko
2013-07-29 10:10:21 -07:00
parent a206287b21
commit 4c6804c3ae
8 changed files with 604 additions and 3 deletions
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src/map/mapper/mapperMatch.c
+3
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@@ -199,6 +199,9 @@ int Map_MatchNodePhase( Map_Man_t * p, Map_Node_t * pNode, int fPhase )
fWorstLimit = pNode->tRequired[fPhase].Worst;
for ( pCut = pNode->pCuts->pNext; pCut; pCut = pCut->pNext )
{
// limit gate sizes based on fanout count
if ( (pNode->nRefs > 8 && pCut->nLeaves > 2) || (pNode->nRefs > 4 && pCut->nLeaves > 3) )
continue;
pMatch = pCut->M + fPhase;
if ( pMatch->pSupers == NULL )
continue;