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| author | Alan Mishchenko <alanmi@berkeley.edu> | 2008-07-25 08:01:00 -0700 |
|---|---|---|
| committer | Alan Mishchenko <alanmi@berkeley.edu> | 2008-07-25 08:01:00 -0700 |
| commit | 1afa8a2f38bacb9f2f8faaf06b4f01c70560a419 (patch) | |
| tree | 8aa41b5eea9d26befaf1604e8cc6c61b59eaef1b /src/aig/ntl/ntlFraig.c | |
| parent | 2c96c8af36446d3b855e07d78975cfad50c2917c (diff) | |
| download | abc-1afa8a2f38bacb9f2f8faaf06b4f01c70560a419.tar.gz abc-1afa8a2f38bacb9f2f8faaf06b4f01c70560a419.tar.bz2 abc-1afa8a2f38bacb9f2f8faaf06b4f01c70560a419.zip | |
Version abc80725
Diffstat (limited to 'src/aig/ntl/ntlFraig.c')
| -rw-r--r-- | src/aig/ntl/ntlFraig.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/src/aig/ntl/ntlFraig.c b/src/aig/ntl/ntlFraig.c index bd39956e..38568d26 100644 --- a/src/aig/ntl/ntlFraig.c +++ b/src/aig/ntl/ntlFraig.c @@ -145,13 +145,20 @@ void Ntl_ManReduce( Ntl_Man_t * p, Aig_Man_t * pAig ) continue; assert( pObj != pObjRepr ); pNet = pObj->pData; - // do not reduce the net if it is driven by a multi-output box - if ( Ntl_ObjIsBox(pNet->pDriver) && Ntl_ObjFanoutNum(pNet->pDriver) > 1 ) - continue; - // do not reduce the net if it has no-merge attribute - if ( Ntl_ObjIsBox(pNet->pDriver) && pNet->pDriver->pImplem->attrNoMerge ) - continue; pNetRepr = pObjRepr->pData; + // consider special cases, when the net should not be reduced + if ( Ntl_ObjIsBox(pNet->pDriver) ) + { + // do not reduce the net if it is driven by a multi-output box + if ( Ntl_ObjFanoutNum(pNet->pDriver) > 1 ) + continue; + // do not reduce the net if it has no-merge attribute + if ( pNet->pDriver->pImplem->attrNoMerge ) + continue; + // do not reduce the net if the replacement net has no-merge attribute + if ( pNetRepr != NULL && pNetRepr->pDriver->pImplem->attrNoMerge ) + continue; + } if ( pNetRepr == NULL ) { // this is the constant node |