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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/MemoryPhiNode.java @ 14978:e302df8bf51c

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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 ae0001b445c0
children 27c04ee36dcb
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640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
Roland Schatz <roland.schatz@oracle.com>
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1 /*
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2 * Copyright (c) 2009, 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.
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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4 *
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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5 * This code is free software; you can redistribute it and/or modify it
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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6 * under the terms of the GNU General Public License version 2 only, as
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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7 * published by the Free Software Foundation.
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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8 *
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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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
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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12 * version 2 for more details (a copy is included in the LICENSE file that
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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13 * accompanied this code).
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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14 *
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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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,
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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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
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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20 * or visit www.oracle.com if you need additional information or have any
640516a8ca6b Separate class for MemoryProxy and MemoryPhi.
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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.graph.*;
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ae0001b445c0 Common base interface for nodes in the memory graph.
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27 import com.oracle.graal.nodes.extended.*;
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28 import com.oracle.graal.nodes.type.*;
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29
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30 /**
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31 * The {@code PhiNode} represents the merging of dataflow in the memory graph.
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32 */
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33 public class MemoryPhiNode extends PhiNode implements MemoryNode {
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34
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35 @Input final NodeInputList<ValueNode> values = new NodeInputList<>(this);
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36 private final LocationIdentity locationIdentity;
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37
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38 public MemoryPhiNode(MergeNode merge, LocationIdentity locationIdentity) {
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39 super(StampFactory.dependency(), merge);
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40 this.locationIdentity = locationIdentity;
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41 }
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42
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43 public LocationIdentity getLocationIdentity() {
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44 return locationIdentity;
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45 }
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46
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47 public MemoryCheckpoint asMemoryCheckpoint() {
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48 return null;
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49 }
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50
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51 public MemoryPhiNode asMemoryPhi() {
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52 return this;
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53 }
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54
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55 @Override
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56 public NodeInputList<ValueNode> values() {
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57 return values;
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58 }
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59 }