--- /dev/null	2016-05-31 09:42:47.975716356 -0700
+++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/debug/DynamicCounterNode.java	2016-12-09 00:55:26.642063991 -0800
@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2013, 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.nodes.debug;
+
+import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_20;
+import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_10;
+
+import org.graalvm.compiler.core.common.type.StampFactory;
+import org.graalvm.compiler.debug.GraalError;
+import org.graalvm.compiler.graph.NodeClass;
+import org.graalvm.compiler.lir.LIRInstruction;
+import org.graalvm.compiler.lir.gen.LIRGeneratorTool;
+import org.graalvm.compiler.nodeinfo.NodeInfo;
+import org.graalvm.compiler.nodes.ConstantNode;
+import org.graalvm.compiler.nodes.FixedNode;
+import org.graalvm.compiler.nodes.FixedWithNextNode;
+import org.graalvm.compiler.nodes.StructuredGraph;
+import org.graalvm.compiler.nodes.ValueNode;
+import org.graalvm.compiler.nodes.spi.LIRLowerable;
+import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
+
+/**
+ * This node can be used to add a counter to the code that will estimate the dynamic number of calls
+ * by adding an increment to the compiled code. This should of course only be used for
+ * debugging/testing purposes.
+ *
+ * A unique counter will be created for each unique name passed to the constructor. Depending on the
+ * value of withContext, the name of the root method is added to the counter's name.
+ */
+@NodeInfo(size = SIZE_10, cycles = CYCLES_20)
+public class DynamicCounterNode extends FixedWithNextNode implements LIRLowerable {
+
+    public static final NodeClass<DynamicCounterNode> TYPE = NodeClass.create(DynamicCounterNode.class);
+    @Input ValueNode increment;
+
+    protected final String name;
+    protected final String group;
+    protected final boolean withContext;
+
+    public DynamicCounterNode(String name, String group, ValueNode increment, boolean withContext) {
+        this(TYPE, name, group, increment, withContext);
+    }
+
+    protected DynamicCounterNode(NodeClass<? extends DynamicCounterNode> c, String name, String group, ValueNode increment, boolean withContext) {
+        super(c, StampFactory.forVoid());
+        this.name = name;
+        this.group = group;
+        this.increment = increment;
+        this.withContext = withContext;
+    }
+
+    public ValueNode getIncrement() {
+        return increment;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getGroup() {
+        return group;
+    }
+
+    public boolean isWithContext() {
+        return withContext;
+    }
+
+    public static void addCounterBefore(String group, String name, long increment, boolean withContext, FixedNode position) {
+        StructuredGraph graph = position.graph();
+        graph.addBeforeFixed(position, position.graph().add(new DynamicCounterNode(name, group, ConstantNode.forLong(increment, position.graph()), withContext)));
+    }
+
+    @NodeIntrinsic
+    public static native void counter(@ConstantNodeParameter String name, @ConstantNodeParameter String group, long increment, @ConstantNodeParameter boolean addContext);
+
+    @Override
+    public void generate(NodeLIRBuilderTool generator) {
+        LIRGeneratorTool lirGen = generator.getLIRGeneratorTool();
+        String nameWithContext;
+        if (isWithContext()) {
+            nameWithContext = getName() + " @ ";
+            if (graph().method() != null) {
+                StackTraceElement stackTraceElement = graph().method().asStackTraceElement(0);
+                if (stackTraceElement != null) {
+                    nameWithContext += " " + stackTraceElement.toString();
+                } else {
+                    nameWithContext += graph().method().format("%h.%n");
+                }
+            }
+            if (graph().name != null) {
+                nameWithContext += " (" + graph().name + ")";
+            }
+
+        } else {
+            nameWithContext = getName();
+        }
+        LIRInstruction counterOp = lirGen.createBenchmarkCounter(nameWithContext, getGroup(), generator.operand(increment));
+        if (counterOp != null) {
+            lirGen.append(counterOp);
+        } else {
+            throw GraalError.unimplemented("Benchmark counters not enabled or not implemented by the back end.");
+        }
+    }
+
+}