--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/memory/VolatileReadNode.java	Thu Oct 31 16:54:16 2019 -0700
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, Red Hat Inc. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+
+
+package org.graalvm.compiler.nodes.memory;
+
+import org.graalvm.compiler.core.common.GraalOptions;
+import org.graalvm.compiler.core.common.type.Stamp;
+import org.graalvm.compiler.graph.NodeClass;
+import org.graalvm.compiler.nodeinfo.NodeInfo;
+import org.graalvm.compiler.nodes.memory.address.AddressNode;
+import jdk.internal.vm.compiler.word.LocationIdentity;
+
+import static org.graalvm.compiler.nodeinfo.InputType.Memory;
+import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_2;
+import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_1;
+
+@NodeInfo(nameTemplate = "Read#{p#location/s}", allowedUsageTypes = Memory, cycles = CYCLES_2, size = SIZE_1)
+public class VolatileReadNode extends ReadNode implements MemoryCheckpoint.Single {
+    public static final NodeClass<VolatileReadNode> TYPE = NodeClass.create(VolatileReadNode.class);
+
+    public VolatileReadNode(AddressNode address, LocationIdentity location, Stamp stamp, BarrierType barrierType) {
+        super(TYPE, address, location, stamp, null, barrierType, false, null);
+        assert GraalOptions.LateMembars.getValue(address.getOptions());
+    }
+
+    @SuppressWarnings("try")
+    @Override
+    public FloatingAccessNode asFloatingNode() {
+        throw new RuntimeException();
+    }
+
+    @Override
+    public boolean canFloat() {
+        return false;
+    }
+
+    @Override
+    public LocationIdentity getKilledLocationIdentity() {
+        return LocationIdentity.any();
+    }
+
+    @Override
+    public boolean canNullCheck() {
+        return false;
+    }
+
+}