diff options
Diffstat (limited to 'src/opt/sfm/sfmWin.c')
| -rw-r--r-- | src/opt/sfm/sfmWin.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/src/opt/sfm/sfmWin.c b/src/opt/sfm/sfmWin.c index 54cf924d..887bf0f7 100644 --- a/src/opt/sfm/sfmWin.c +++ b/src/opt/sfm/sfmWin.c @@ -182,11 +182,12 @@ int Sfm_NtkCheckFanouts( Sfm_Ntk_t * p, int iNode ) void Sfm_NtkAddDivisors( Sfm_Ntk_t * p, int iNode, int nLevelMax ) { int i, iFanout; + if ( Sfm_ObjFanoutNum(p, iNode) > p->pPars->nFanoutMax ) + return; Sfm_ObjForEachFanout( p, iNode, iFanout, i ) { - // skip TFI nodes, PO nodes, and nodes with high fanout or nodes with high logic level + // skip TFI nodes, PO nodes, or nodes with high logic level if ( Sfm_ObjIsTravIdCurrent(p, iFanout) || Sfm_ObjIsPo(p, iFanout) || - Sfm_ObjFanoutNum(p, iFanout) >= p->pPars->nFanoutMax || (p->pPars->fFixLevel && Sfm_ObjLevel(p, iFanout) >= nLevelMax) ) continue; // handle single-input nodes @@ -216,20 +217,22 @@ void Sfm_NtkAddDivisors( Sfm_Ntk_t * p, int iNode, int nLevelMax ) SeeAlso [] ***********************************************************************/ -void Sfm_NtkCollectTfi_rec( Sfm_Ntk_t * p, int iNode ) +int Sfm_NtkCollectTfi_rec( Sfm_Ntk_t * p, int iNode, int nWinSizeMax ) { int i, iFanin; if ( Sfm_ObjIsTravIdCurrent( p, iNode ) ) - return; + return 0; Sfm_ObjSetTravIdCurrent( p, iNode ); if ( Sfm_ObjIsPi( p, iNode ) ) { Vec_IntPush( p->vLeaves, iNode ); - return; + return 0; } Sfm_ObjForEachFanin( p, iNode, iFanin, i ) - Sfm_NtkCollectTfi_rec( p, iFanin ); + if ( Sfm_NtkCollectTfi_rec( p, iFanin, nWinSizeMax ) ) + return 1; Vec_IntPush( p->vNodes, iNode ); + return nWinSizeMax && (Vec_IntSize(p->vNodes) > nWinSizeMax); } int Sfm_NtkCreateWindow( Sfm_Ntk_t * p, int iNode, int fVerbose ) { @@ -243,9 +246,11 @@ int Sfm_NtkCreateWindow( Sfm_Ntk_t * p, int iNode, int fVerbose ) Vec_IntClear( p->vTfo ); // roots // collect transitive fanin Sfm_NtkIncrementTravId( p ); - Sfm_NtkCollectTfi_rec( p, iNode ); - if ( Vec_IntSize(p->vLeaves) + Vec_IntSize(p->vNodes) > p->pPars->nWinSizeMax ) + if ( Sfm_NtkCollectTfi_rec( p, iNode, p->pPars->nWinSizeMax ) ) + { + p->timeWin += clock() - clk; return 0; + } // collect TFO (currently use only one level of TFO) if ( Sfm_NtkCheckFanouts(p, iNode) ) { |