diff a/src/hotspot/share/gc/z/c2/zBarrierSetC2.hpp b/src/hotspot/share/gc/z/c2/zBarrierSetC2.hpp
--- a/src/hotspot/share/gc/z/c2/zBarrierSetC2.hpp
+++ b/src/hotspot/share/gc/z/c2/zBarrierSetC2.hpp
@@ -125,11 +125,11 @@
                                                bool is_clone_instance,
                                                ArrayCopyPhase phase) const;
   virtual void clone_at_expansion(PhaseMacroExpand* phase,
                                   ArrayCopyNode* ac) const;
 
-  virtual void elide_dominated_barrier(MachNode* mach) const;
+  virtual void elide_dominated_barrier(MachNode* mach, MachNode* dominator) const;
   virtual void late_barrier_analysis() const;
   virtual int estimate_stub_size() const;
   virtual void emit_stubs(CodeBuffer& cb) const;
   virtual void eliminate_gc_barrier(PhaseMacroExpand* macro, Node* node) const;
   virtual void eliminate_gc_barrier_data(Node* node) const;