001/*
002 * Copyright (c) 2015, 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.nodes;
024
025import com.oracle.graal.graph.*;
026import com.oracle.graal.nodeinfo.*;
027import com.oracle.graal.nodes.spi.*;
028
029/**
030 * Proxy node that is used in OSR. This node drops the stamp information from the value, since the
031 * types we see during OSR may be too precise (if a branch was not parsed for example).
032 */
033@NodeInfo(nameTemplate = "EntryProxy({i#value})")
034public final class EntryProxyNode extends ProxyNode implements ValueProxy {
035
036    public static final NodeClass<EntryProxyNode> TYPE = NodeClass.create(EntryProxyNode.class);
037    @Input ValueNode value;
038
039    public EntryProxyNode(ValueNode value, AbstractBeginNode proxyPoint) {
040        super(TYPE, value.stamp().unrestricted(), proxyPoint);
041        this.value = value;
042    }
043
044    @Override
045    public ValueNode value() {
046        return value;
047    }
048
049    @Override
050    public ValueNode getOriginalNode() {
051        return value();
052    }
053}