--- a/src/hotspot/cpu/x86/stubGenerator_x86_64.cpp	Mon Oct 30 21:23:10 2017 +0100
+++ b/src/hotspot/cpu/x86/stubGenerator_x86_64.cpp	Mon Nov 06 18:53:38 2017 +0100
@@ -1221,6 +1221,7 @@
       case BarrierSet::CardTableForRS:
       case BarrierSet::CardTableExtension:
       case BarrierSet::ModRef:
+      case BarrierSet::Epsilon:
         break;
       default:
         ShouldNotReachHere();
@@ -1282,6 +1283,9 @@
           __ jcc(Assembler::greaterEqual, L_loop);
         }
         break;
+      case BarrierSet::Epsilon:
+        // No barriers
+        break;
       default:
         ShouldNotReachHere();