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| author | Alan Mishchenko <alanmi@berkeley.edu> | 2013-10-16 19:02:47 -0700 |
|---|---|---|
| committer | Alan Mishchenko <alanmi@berkeley.edu> | 2013-10-16 19:02:47 -0700 |
| commit | 9f2c4e998898a8485cd4afb89ffc268752b1b2e1 (patch) | |
| tree | 9c2da9f7f4ae9f8c0ef55bc5e1dc9d059918aa01 | |
| parent | 4ab7905b72f8191c0959b129c4b29b38c2a1956c (diff) | |
| download | abc-9f2c4e998898a8485cd4afb89ffc268752b1b2e1.tar.gz abc-9f2c4e998898a8485cd4afb89ffc268752b1b2e1.tar.bz2 abc-9f2c4e998898a8485cd4afb89ffc268752b1b2e1.zip | |
Bug fix in gate-sizing.
| -rw-r--r-- | src/map/scl/sclUpsize.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/map/scl/sclUpsize.c b/src/map/scl/sclUpsize.c index f1e0fbd9..1bfc1d56 100644 --- a/src/map/scl/sclUpsize.c +++ b/src/map/scl/sclUpsize.c @@ -338,7 +338,7 @@ int Abc_SclFindBypasses( SC_Man * p, Vec_Int_t * vPathNodes, int Ratio, int Notc SC_Cell * pCellOld, * pCellNew; Vec_Ptr_t * vFanouts; Vec_Int_t * vRecalcs, * vEvals; - Abc_Obj_t * pBuf, * pFanin, * pFanout, * pExtra = NULL; + Abc_Obj_t * pBuf, * pFanin, * pFanout, * pExtra; int i, j, iNode, gateBest, gateBest2, fanBest, Counter = 0; float dGainBest, dGainBest2; @@ -355,6 +355,7 @@ int Abc_SclFindBypasses( SC_Man * p, Vec_Int_t * vPathNodes, int Ratio, int Notc pFanin = Abc_ObjFanin0(pBuf); if ( !Abc_ObjIsNode(pFanin) ) continue; + pExtra = NULL; if ( p->pNtk->vPhases == NULL ) { if ( Abc_SclIsInv(pBuf) ) @@ -388,6 +389,9 @@ int Abc_SclFindBypasses( SC_Man * p, Vec_Int_t * vPathNodes, int Ratio, int Notc // skip if fanin already has fanout as a fanout if ( Abc_NodeFindFanin(pFanout, pFanin) >= 0 ) continue; + // skip if fanin already has fanout as a fanout + if ( pExtra && Abc_NodeFindFanin(pFanout, pExtra) >= 0 ) + continue; // prepare Abc_SclLoadStore3( p, pBuf ); Abc_SclUpdateLoadSplit( p, pBuf, pFanout ); |