--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir/src/org/graalvm/compiler/lir/profiling/MethodProfilingPhase.java	2017-02-15 17:05:56.848814785 -0800
@@ -0,0 +1,93 @@
+/*
+ * 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.lir.profiling;
+
+import java.util.List;
+
+import org.graalvm.compiler.core.common.LIRKind;
+import org.graalvm.compiler.core.common.cfg.AbstractBlockBase;
+import org.graalvm.compiler.lir.ConstantValue;
+import org.graalvm.compiler.lir.LIR;
+import org.graalvm.compiler.lir.LIRInsertionBuffer;
+import org.graalvm.compiler.lir.LIRInstruction;
+import org.graalvm.compiler.lir.StandardOp.BlockEndOp;
+import org.graalvm.compiler.lir.StandardOp.LabelOp;
+import org.graalvm.compiler.lir.gen.DiagnosticLIRGeneratorTool;
+import org.graalvm.compiler.lir.gen.LIRGenerationResult;
+import org.graalvm.compiler.lir.phases.PostAllocationOptimizationPhase;
+
+import jdk.vm.ci.code.TargetDescription;
+import jdk.vm.ci.meta.JavaConstant;
+import jdk.vm.ci.meta.JavaKind;
+
+public class MethodProfilingPhase extends PostAllocationOptimizationPhase {
+    public static final String INVOCATION_GROUP = "METHOD_INVOCATION_COUNTER";
+    public static final String ITERATION_GROUP = "METHOD_ITERATION_COUNTER";
+
+    @Override
+    protected void run(TargetDescription target, LIRGenerationResult lirGenRes, PostAllocationOptimizationContext context) {
+        new Analyzer(target, lirGenRes.getCompilationUnitName(), lirGenRes.getLIR(), context.diagnosticLirGenTool).run();
+    }
+
+    private class Analyzer {
+        private final LIR lir;
+        private final DiagnosticLIRGeneratorTool diagnosticLirGenTool;
+        private final LIRInsertionBuffer buffer;
+        private final String compilationUnitName;
+        private final ConstantValue increment;
+
+        Analyzer(TargetDescription target, String compilationUnitName, LIR lir, DiagnosticLIRGeneratorTool diagnosticLirGenTool) {
+            this.lir = lir;
+            this.compilationUnitName = compilationUnitName;
+            this.diagnosticLirGenTool = diagnosticLirGenTool;
+            this.buffer = new LIRInsertionBuffer();
+            this.increment = new ConstantValue(LIRKind.fromJavaKind(target.arch, JavaKind.Int), JavaConstant.INT_1);
+        }
+
+        public void run() {
+            // insert counter at method entry
+            doBlock(lir.getControlFlowGraph().getStartBlock(), INVOCATION_GROUP);
+            for (AbstractBlockBase<?> block : lir.getControlFlowGraph().getBlocks()) {
+                if (block.isLoopHeader()) {
+                    // insert counter at loop header
+                    doBlock(block, ITERATION_GROUP);
+                }
+            }
+        }
+
+        public void doBlock(AbstractBlockBase<?> block, String group) {
+            List<LIRInstruction> instructions = lir.getLIRforBlock(block);
+            assert instructions.size() >= 2 : "Malformed block: " + block + ", " + instructions;
+            assert instructions.get(instructions.size() - 1) instanceof BlockEndOp : "Not a BlockEndOp: " + instructions.get(instructions.size() - 1);
+            assert !(instructions.get(instructions.size() - 2) instanceof BlockEndOp) : "Is a BlockEndOp: " + instructions.get(instructions.size() - 2);
+            assert instructions.get(0) instanceof LabelOp : "Not a LabelOp: " + instructions.get(0);
+            assert !(instructions.get(1) instanceof LabelOp) : "Is a LabelOp: " + instructions.get(1);
+
+            LIRInstruction op = diagnosticLirGenTool.createBenchmarkCounter(compilationUnitName, group, increment);
+            buffer.init(instructions);
+            buffer.append(1, op);
+            buffer.finish();
+        }
+    }
+
+}