Mercurial > hg > graal-compiler
annotate graal/GraalCompiler/src/com/sun/c1x/ir/Placeholder.java @ 2856:3a4ad04d60a1
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author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Tue, 07 Jun 2011 15:56:21 +0200 |
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1 /* |
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2 * Copyright (c) 2011, 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 |
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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 |
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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.sun.c1x.ir; |
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24 |
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25 import com.oracle.graal.graph.*; |
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26 import com.sun.c1x.debug.*; |
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27 import com.sun.cri.ci.*; |
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28 |
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29 |
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30 public class Placeholder extends StateSplit { |
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31 |
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32 private static final int INPUT_COUNT = 0; |
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33 |
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34 private static final int SUCCESSOR_COUNT = 0; |
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35 |
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36 @Override |
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37 protected int inputCount() { |
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38 return super.inputCount() + INPUT_COUNT; |
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39 } |
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40 |
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41 @Override |
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42 protected int successorCount() { |
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43 return super.successorCount() + SUCCESSOR_COUNT; |
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44 } |
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45 |
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46 public Placeholder(Graph graph) { |
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47 super(CiKind.Void, INPUT_COUNT, SUCCESSOR_COUNT, graph); |
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48 } |
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49 |
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50 @Override |
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51 public void accept(ValueVisitor v) { |
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52 assert false; |
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53 } |
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54 |
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55 @Override |
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56 public void print(LogStream out) { |
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57 assert false; |
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58 } |
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59 |
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60 @Override |
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61 public String shortName() { |
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62 return "Placeholder" + id(); |
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63 } |
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64 |
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65 @Override |
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66 public Node copy(Graph into) { |
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67 Placeholder x = new Placeholder(into); |
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68 x.setNonNull(isNonNull()); |
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69 return x; |
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70 } |
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71 } |