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Bug fix in gate-sizing.

This commit is contained in:
Alan Mishchenko 2013-10-16 19:02:47 -07:00
parent 4ab7905b72
commit 9f2c4e9988
1 changed files with 5 additions and 1 deletions
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6
src/map/scl/sclUpsize.c
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@ -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 );