--- a/src/hotspot/share/opto/cfgnode.hpp	Tue Apr 24 10:26:54 2018 -0700
+++ b/src/hotspot/share/opto/cfgnode.hpp	Tue Apr 10 17:07:21 2018 +0200
@@ -298,6 +298,7 @@
   void reroute_side_effect_free_unc(ProjNode* proj, ProjNode* dom_proj, PhaseIterGVN* igvn);
   ProjNode* uncommon_trap_proj(CallStaticJavaNode*& call) const;
   bool fold_compares_helper(ProjNode* proj, ProjNode* success, ProjNode* fail, PhaseIterGVN* igvn);
+  static bool is_dominator_unc(CallStaticJavaNode* dom_unc, CallStaticJavaNode* unc);
 
 protected:
   ProjNode* range_check_trap_proj(int& flip, Node*& l, Node*& r);