Mercurial > hg > truffle
view graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/MemoryProxyNode.java @ 15869:387b15da0f68
small cleanup in ReadElimination
author | Lukas Stadler <lukas.stadler@oracle.com> |
---|---|
date | Fri, 23 May 2014 17:47:44 +0200 |
parents | 882f4cb7cfcf |
children | 36ae19c8fb4e |
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/* * Copyright (c) 2012, 2014, 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.api.meta.*; import com.oracle.graal.compiler.common.type.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.extended.*; import com.oracle.graal.nodes.spi.*; @NodeInfo(allowedUsageTypes = {InputType.Memory}) public class MemoryProxyNode extends ProxyNode implements MemoryProxy, LIRLowerable { @Input(InputType.Memory) private MemoryNode value; private final LocationIdentity identity; public MemoryProxyNode(MemoryNode value, BeginNode exit, LocationIdentity identity) { super(StampFactory.forVoid(), exit); this.value = value; this.identity = identity; } @Override public ValueNode value() { return value.asNode(); } public LocationIdentity getLocationIdentity() { return identity; } @Override public void generate(NodeLIRBuilderTool generator) { } @Override public boolean verify() { assert value() instanceof MemoryNode : this + " " + value(); return super.verify(); } public MemoryNode getOriginalMemoryNode() { return (MemoryNode) value(); } public MemoryCheckpoint asMemoryCheckpoint() { return getOriginalMemoryNode().asMemoryCheckpoint(); } public MemoryPhiNode asMemoryPhi() { return getOriginalMemoryNode().asMemoryPhi(); } public Node getOriginalNode() { return value.asNode(); } }