diff a/src/hotspot/share/gc/g1/c2/g1BarrierSetC2.cpp b/src/hotspot/share/gc/g1/c2/g1BarrierSetC2.cpp
--- a/src/hotspot/share/gc/g1/c2/g1BarrierSetC2.cpp
+++ b/src/hotspot/share/gc/g1/c2/g1BarrierSetC2.cpp
@@ -501,11 +501,11 @@
   }
 
   return barriers;
 }
 
-void G1BarrierSetC2::elide_dominated_barrier(MachNode* mach) const {
+void G1BarrierSetC2::elide_dominated_barrier(MachNode* mach, MachNode* dominator) const {
   uint8_t barrier_data = mach->barrier_data();
   barrier_data &= ~G1C2BarrierPre;
   if (CardTableBarrierSetC2::use_ReduceInitialCardMarks()) {
     barrier_data &= ~G1C2BarrierPost;
     barrier_data &= ~G1C2BarrierPostNotNull;