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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/MemoryProxyNode.java @ 15869:387b15da0f68

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small cleanup in ReadElimination
author Lukas Stadler <lukas.stadler@oracle.com>
date Fri, 23 May 2014 17:47:44 +0200
parents 882f4cb7cfcf
children 36ae19c8fb4e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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1 /*
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2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.nodes;
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24
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25 import com.oracle.graal.api.meta.*;
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26 import com.oracle.graal.compiler.common.type.*;
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27 import com.oracle.graal.graph.*;
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28 import com.oracle.graal.nodes.extended.*;
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29 import com.oracle.graal.nodes.spi.*;
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30
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31 @NodeInfo(allowedUsageTypes = {InputType.Memory})
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32 public class MemoryProxyNode extends ProxyNode implements MemoryProxy, LIRLowerable {
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33
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34 @Input(InputType.Memory) private MemoryNode value;
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35 private final LocationIdentity identity;
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36
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37 public MemoryProxyNode(MemoryNode value, BeginNode exit, LocationIdentity identity) {
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38 super(StampFactory.forVoid(), exit);
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39 this.value = value;
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40 this.identity = identity;
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41 }
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42
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43 @Override
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44 public ValueNode value() {
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45 return value.asNode();
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46 }
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47
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48 public LocationIdentity getLocationIdentity() {
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49 return identity;
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50 }
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51
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52 @Override
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53 public void generate(NodeLIRBuilderTool generator) {
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54 }
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55
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56 @Override
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57 public boolean verify() {
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58 assert value() instanceof MemoryNode : this + " " + value();
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59 return super.verify();
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60 }
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61
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62 public MemoryNode getOriginalMemoryNode() {
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63 return (MemoryNode) value();
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64 }
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65
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66 public MemoryCheckpoint asMemoryCheckpoint() {
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67 return getOriginalMemoryNode().asMemoryCheckpoint();
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68 }
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69
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70 public MemoryPhiNode asMemoryPhi() {
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71 return getOriginalMemoryNode().asMemoryPhi();
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72 }
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73
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74 public Node getOriginalNode() {
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75 return value.asNode();
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76 }
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77 }