--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/nodes/AcquiredCASLockNode.java	2017-02-15 16:59:52.394944255 -0800
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. 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.hotspot.nodes;
+
+import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_0;
+import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_0;
+
+import org.graalvm.compiler.core.common.type.StampFactory;
+import org.graalvm.compiler.graph.NodeClass;
+import org.graalvm.compiler.nodeinfo.NodeInfo;
+import org.graalvm.compiler.nodes.FixedWithNextNode;
+import org.graalvm.compiler.nodes.ValueNode;
+import org.graalvm.compiler.nodes.spi.LIRLowerable;
+import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
+
+/**
+ * Marks the control flow path where an object acquired a lightweight lock based on an atomic
+ * compare-and-swap (CAS) of the mark word in the object's header.
+ */
+@NodeInfo(cycles = CYCLES_0, size = SIZE_0)
+public final class AcquiredCASLockNode extends FixedWithNextNode implements LIRLowerable {
+    public static final NodeClass<AcquiredCASLockNode> TYPE = NodeClass.create(AcquiredCASLockNode.class);
+
+    @Input ValueNode object;
+
+    public AcquiredCASLockNode(ValueNode object) {
+        super(TYPE, StampFactory.forVoid());
+        this.object = object;
+    }
+
+    public ValueNode object() {
+        return object;
+    }
+
+    @Override
+    public void generate(NodeLIRBuilderTool generator) {
+        // This is just a marker node so it generates nothing
+    }
+
+    @NodeIntrinsic
+    public static native void mark(Object object);
+}