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-rw-r--r--src/aig/ivy/ivyCut.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/aig/ivy/ivyCut.c b/src/aig/ivy/ivyCut.c
index d918c96c..e257d8a6 100644
--- a/src/aig/ivy/ivyCut.c
+++ b/src/aig/ivy/ivyCut.c
@@ -930,6 +930,8 @@ Ivy_Store_t * Ivy_NodeFindCutsAll( Ivy_Man_t * p, Ivy_Obj_t * pObj, int nLeaves
*/
iLeaf0 = Ivy_ObjId( Ivy_ObjRealFanin(Ivy_ObjFanin0(pLeaf)) );
iLeaf1 = Ivy_ObjId( Ivy_ObjRealFanin(Ivy_ObjFanin1(pLeaf)) );
+// if ( iLeaf0 == iLeaf1 ) // strange situation observed on Jan 18, 2007
+// continue;
if ( !Ivy_NodeCutPrescreen( pCut, iLeaf0, iLeaf1 ) )
continue;
if ( iLeaf0 > iLeaf1 )