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-rw-r--r--src/aig/gia/giaUtil.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/aig/gia/giaUtil.c b/src/aig/gia/giaUtil.c
index 072c9872..d0ec969f 100644
--- a/src/aig/gia/giaUtil.c
+++ b/src/aig/gia/giaUtil.c
@@ -694,7 +694,8 @@ void Gia_ManCreateValueRefs( Gia_Man_t * p )
if ( Gia_ObjIsAnd(pObj) )
{
Gia_ObjFanin0(pObj)->Value++;
- Gia_ObjFanin1(pObj)->Value++;
+ if ( !Gia_ObjIsBuf(pObj) )
+ Gia_ObjFanin1(pObj)->Value++;
}
else if ( Gia_ObjIsCo(pObj) )
Gia_ObjFanin0(pObj)->Value++;
@@ -723,7 +724,8 @@ void Gia_ManCreateRefs( Gia_Man_t * p )
if ( Gia_ObjIsAnd(pObj) )
{
Gia_ObjRefFanin0Inc( p, pObj );
- Gia_ObjRefFanin1Inc( p, pObj );
+ if ( !Gia_ObjIsBuf(pObj) )
+ Gia_ObjRefFanin1Inc( p, pObj );
if ( Gia_ObjIsMuxId(p, i) )
Gia_ObjRefFanin2Inc( p, pObj );
}