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-rw-r--r--src/aig/gia/giaMfs.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/aig/gia/giaMfs.c b/src/aig/gia/giaMfs.c
index 3fd9d04c..32322ab2 100644
--- a/src/aig/gia/giaMfs.c
+++ b/src/aig/gia/giaMfs.c
@@ -345,6 +345,9 @@ Gia_Man_t * Gia_ManInsertMfs( Gia_Man_t * p, Sfm_Ntk_t * pNtk )
// update extra STG
if ( p->pAigExtra )
pNew->pAigExtra = Gia_ManUpdateExtraAig2( p->pManTime, p->pAigExtra, vBoxesLeft );
+ // duplicated flops
+ if ( p->vRegClasses )
+ pNew->vRegClasses = Vec_IntDup( p->vRegClasses );
// cleanup
Vec_WecFree( vGroups );