--- old/src/hotspot/share/opto/lcm.cpp	2018-12-03 17:49:02.407729243 +0100
+++ new/src/hotspot/share/opto/lcm.cpp	2018-12-03 17:49:02.251730357 +0100
@@ -178,6 +178,7 @@
     case Op_LoadRange:
     case Op_LoadD_unaligned:
     case Op_LoadL_unaligned:
+    case Op_ShenandoahReadBarrier:
       assert(mach->in(2) == val, "should be address");
       break;
     case Op_StoreB: