--- /dev/null	2016-05-31 09:42:47.975716356 -0700
+++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/nodes/profiling/ProfileNode.java	2016-12-09 00:49:44.613987429 -0800
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2016, 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.profiling;
+
+import jdk.vm.ci.meta.ResolvedJavaMethod;
+
+import org.graalvm.compiler.core.common.type.StampFactory;
+import org.graalvm.compiler.graph.NodeClass;
+import org.graalvm.compiler.graph.iterators.NodeIterable;
+import org.graalvm.compiler.nodeinfo.NodeInfo;
+import org.graalvm.compiler.nodes.DeoptimizingFixedWithNextNode;
+import org.graalvm.compiler.nodes.StructuredGraph;
+import org.graalvm.compiler.nodes.ValueNode;
+import org.graalvm.compiler.nodes.spi.Lowerable;
+import org.graalvm.compiler.nodes.spi.LoweringTool;
+import org.graalvm.compiler.options.Option;
+import org.graalvm.compiler.options.OptionType;
+import org.graalvm.compiler.options.OptionValue;
+
+@NodeInfo
+public class ProfileNode extends DeoptimizingFixedWithNextNode implements Lowerable {
+    public static class Options {
+        @Option(help = "Control probabilistic profiling on AMD64", type = OptionType.Expert)//
+        public static final OptionValue<Boolean> ProbabilisticProfiling = new OptionValue<>(true);
+    }
+
+    public static final NodeClass<ProfileNode> TYPE = NodeClass.create(ProfileNode.class);
+
+    protected ResolvedJavaMethod method;
+
+    // Only used if ProbabilisticProfiling == true and may be ignored by lowerer.
+    @OptionalInput protected ValueNode random;
+
+    // logarithm base 2 of the profile probability
+    protected int probabilityLog;
+
+    protected ProfileNode(NodeClass<? extends DeoptimizingFixedWithNextNode> c, ResolvedJavaMethod method, int probabilityLog) {
+        super(c, StampFactory.forVoid());
+        this.method = method;
+        this.probabilityLog = probabilityLog;
+    }
+
+    public ProfileNode(ResolvedJavaMethod method, int probabilityLog) {
+        super(TYPE, StampFactory.forVoid());
+        this.method = method;
+        this.probabilityLog = probabilityLog;
+    }
+
+    @Override
+    public boolean canDeoptimize() {
+        return true;
+    }
+
+    @Override
+    public void lower(LoweringTool tool) {
+        tool.getLowerer().lower(this, tool);
+    }
+
+    public ResolvedJavaMethod getProfiledMethod() {
+        return method;
+    }
+
+    public ValueNode getRandom() {
+        return random;
+    }
+
+    public void setRandom(ValueNode r) {
+        updateUsages(random, r);
+        this.random = r;
+    }
+
+    /**
+     * Get the logarithm base 2 of the profile probability.
+     */
+    public int getProbabilityLog() {
+        return probabilityLog;
+    }
+
+    /**
+     * Gathers all the {@link ProfileNode}s that are inputs to the
+     * {@linkplain StructuredGraph#getNodes() live nodes} in a given graph.
+     */
+    public static NodeIterable<ProfileNode> getProfileNodes(StructuredGraph graph) {
+        return graph.getNodes().filter(ProfileNode.class);
+    }
+}