--- a/src/hotspot/share/gc/z/c2/zBarrierSetC2.hpp	Wed Aug 28 11:19:09 2019 +0200
+++ b/src/hotspot/share/gc/z/c2/zBarrierSetC2.hpp	Mon Aug 26 11:36:45 2019 +0200
@@ -207,7 +207,7 @@
 private:
   // Load barrier insertion and expansion internal
   void insert_barriers_on_unsafe(PhaseIdealLoop* phase) const;
-  void clean_catch_blocks(PhaseIdealLoop* phase) const;
+  void clean_catch_blocks(PhaseIdealLoop* phase, bool verify = false) const;
   void insert_load_barriers(PhaseIdealLoop* phase) const;
   LoadNode* insert_one_loadbarrier(PhaseIdealLoop* phase, LoadNode* load, Node* ctrl) const;
   void insert_one_loadbarrier_inner(PhaseIdealLoop* phase, LoadNode* load, Node* ctrl, VectorSet visited) const;