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-rw-r--r--src/aig/gia/giaDup.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/aig/gia/giaDup.c b/src/aig/gia/giaDup.c
index acd75e26..0e1028e8 100644
--- a/src/aig/gia/giaDup.c
+++ b/src/aig/gia/giaDup.c
@@ -967,6 +967,8 @@ Gia_Man_t * Gia_ManDupMarked( Gia_Man_t * p )
pObj->Value = Gia_ManAppendXorReal( pNew, Gia_ObjFanin0Copy(pObj), Gia_ObjFanin1Copy(pObj) );
else if ( Gia_ObjIsMux(p, pObj) )
pObj->Value = Gia_ManAppendMuxReal( pNew, Gia_ObjFanin2Copy(p, pObj), Gia_ObjFanin1Copy(pObj), Gia_ObjFanin0Copy(pObj) );
+ else if ( Gia_ObjIsBuf(pObj) )
+ pObj->Value = Gia_ManAppendBuf( pNew, Gia_ObjFanin0Copy(pObj) );
else
pObj->Value = Gia_ManAppendAnd( pNew, Gia_ObjFanin0Copy(pObj), Gia_ObjFanin1Copy(pObj) );
}