diff -r d9bcf74fc56a -r 84f10bbf993f src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/phases/WriteBarrierVerificationPhase.java
--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/phases/WriteBarrierVerificationPhase.java	Tue Mar 12 12:12:01 2019 -0700
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/phases/WriteBarrierVerificationPhase.java	Tue Mar 12 19:17:42 2019 +0100
@@ -31,10 +31,10 @@
 import org.graalvm.compiler.graph.Node;
 import org.graalvm.compiler.graph.NodeFlood;
 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
-import org.graalvm.compiler.hotspot.nodes.ArrayRangeWriteBarrier;
-import org.graalvm.compiler.hotspot.nodes.G1PostWriteBarrier;
-import org.graalvm.compiler.hotspot.nodes.ObjectWriteBarrier;
-import org.graalvm.compiler.hotspot.nodes.SerialWriteBarrier;
+import org.graalvm.compiler.hotspot.gc.g1.G1PostWriteBarrier;
+import org.graalvm.compiler.hotspot.gc.shared.ArrayRangeWriteBarrier;
+import org.graalvm.compiler.hotspot.gc.shared.ObjectWriteBarrier;
+import org.graalvm.compiler.hotspot.gc.shared.SerialWriteBarrier;
 import org.graalvm.compiler.nodeinfo.Verbosity;
 import org.graalvm.compiler.nodes.DeoptimizingNode;
 import org.graalvm.compiler.nodes.FixedWithNextNode;