diff options
Diffstat (limited to 'src/aig/saig/saigRetMin.c')
| -rw-r--r-- | src/aig/saig/saigRetMin.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/aig/saig/saigRetMin.c b/src/aig/saig/saigRetMin.c index 324d8867..3935db6c 100644 --- a/src/aig/saig/saigRetMin.c +++ b/src/aig/saig/saigRetMin.c @@ -628,6 +628,8 @@ Aig_Man_t * Saig_ManRetimeMinArea( Aig_Man_t * p, int nMaxIters, int fForwardOnl if ( !fBackwardOnly ) for ( i = 0; i < nMaxIters; i++ ) { + if ( Saig_ManRegNum(pNew) == 0 ) + break; vCut = Nwk_ManDeriveRetimingCut( pNew, 1, fVerbose ); if ( Vec_PtrSize(vCut) >= Aig_ManRegNum(pNew) ) { @@ -648,6 +650,8 @@ Aig_Man_t * Saig_ManRetimeMinArea( Aig_Man_t * p, int nMaxIters, int fForwardOnl if ( !fForwardOnly && !fInitial ) for ( i = 0; i < nMaxIters; i++ ) { + if ( Saig_ManRegNum(pNew) == 0 ) + break; vCut = Nwk_ManDeriveRetimingCut( pNew, 0, fVerbose ); if ( Vec_PtrSize(vCut) >= Aig_ManRegNum(pNew) ) { @@ -666,6 +670,8 @@ Aig_Man_t * Saig_ManRetimeMinArea( Aig_Man_t * p, int nMaxIters, int fForwardOnl else if ( !fForwardOnly && fInitial ) for ( i = 0; i < nMaxIters; i++ ) { + if ( Saig_ManRegNum(pNew) == 0 ) + break; pCopy = Aig_ManDup( pNew ); pTemp = Saig_ManRetimeMinAreaBackward( pCopy, fVerbose ); Aig_ManStop( pCopy ); |