--- /dev/null	2016-05-31 09:42:47.975716356 -0700
+++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.hotspot.amd64/src/org/graalvm/compiler/hotspot/amd64/AMD64HotSpotPatchReturnAddressOp.java	2016-12-09 00:48:50.484601325 -0800
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2012, 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.amd64;
+
+import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG;
+import static jdk.vm.ci.amd64.AMD64.rsp;
+import static jdk.vm.ci.code.ValueUtil.asRegister;
+
+import org.graalvm.compiler.asm.amd64.AMD64Address;
+import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler;
+import org.graalvm.compiler.lir.LIRInstructionClass;
+import org.graalvm.compiler.lir.Opcode;
+import org.graalvm.compiler.lir.amd64.AMD64LIRInstruction;
+import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
+
+import jdk.vm.ci.meta.AllocatableValue;
+
+/**
+ * Patch the return address of the current frame.
+ */
+@Opcode("PATCH_RETURN")
+final class AMD64HotSpotPatchReturnAddressOp extends AMD64LIRInstruction {
+    public static final LIRInstructionClass<AMD64HotSpotPatchReturnAddressOp> TYPE = LIRInstructionClass.create(AMD64HotSpotPatchReturnAddressOp.class);
+
+    @Use(REG) AllocatableValue address;
+
+    AMD64HotSpotPatchReturnAddressOp(AllocatableValue address) {
+        super(TYPE);
+        this.address = address;
+    }
+
+    @Override
+    public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
+        int frameSize = crb.frameMap.frameSize();
+        masm.movq(new AMD64Address(rsp, frameSize), asRegister(address));
+    }
+}