001/*
002 * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.hotspot.nodes;
024
025import com.oracle.graal.compiler.common.type.*;
026import com.oracle.graal.graph.*;
027import com.oracle.graal.hotspot.*;
028import com.oracle.graal.nodeinfo.*;
029import com.oracle.graal.nodes.*;
030import com.oracle.graal.nodes.spi.*;
031import com.oracle.graal.word.*;
032
033/**
034 * Modifies the return address of the current frame.
035 */
036@NodeInfo
037public final class PatchReturnAddressNode extends FixedWithNextNode implements LIRLowerable {
038
039    public static final NodeClass<PatchReturnAddressNode> TYPE = NodeClass.create(PatchReturnAddressNode.class);
040    @Input ValueNode address;
041
042    public PatchReturnAddressNode(ValueNode address) {
043        super(TYPE, StampFactory.forVoid());
044        this.address = address;
045    }
046
047    @Override
048    public void generate(NodeLIRBuilderTool gen) {
049        ((HotSpotNodeLIRBuilder) gen).emitPatchReturnAddress(address);
050    }
051
052    @NodeIntrinsic
053    public static native void patchReturnAddress(Word address);
054}