Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/ValueProxyNode.java @ 14978:e302df8bf51c
separate subclasses for value and guard phis and proxies
author | Lukas Stadler <lukas.stadler@oracle.com> |
---|---|
date | Fri, 04 Apr 2014 18:32:32 +0200 |
parents | |
children | e49f62425090 |
line wrap: on
line source
/* * Copyright (c) 2012, 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 com.oracle.graal.nodes; import com.oracle.graal.graph.*; import com.oracle.graal.graph.spi.*; import com.oracle.graal.nodes.spi.*; public class ValueProxyNode extends ProxyNode implements Canonicalizable, Virtualizable { @Input private ValueNode value; public ValueProxyNode(ValueNode value, AbstractBeginNode proxyPoint) { super(value.stamp(), proxyPoint); this.value = value; } @Override public ValueNode value() { return value; } @Override public boolean inferStamp() { return updateStamp(value.stamp()); } @Override public Node canonical(CanonicalizerTool tool) { if (value.isConstant()) { return value; } return this; } @Override public void virtualize(VirtualizerTool tool) { State state = tool.getObjectState(value); if (state != null && state.getState() == EscapeState.Virtual) { tool.replaceWithVirtual(state.getVirtualObject()); } } }