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annotate graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/loop/LoopEx.java @ 5498:eb0d4946a1ea

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Fix compiler warnings.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Thu, 07 Jun 2012 16:28:21 +0200
parents 5d0d72b37f88
children e05bb6f6c58b
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1 /*
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2 * Copyright (c) 2012, 2012, 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.oracle.graal.compiler.loop;
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24
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25 import com.oracle.graal.graph.*;
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26 import com.oracle.graal.lir.cfg.*;
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27 import com.oracle.graal.nodes.*;
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28
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29 public class LoopEx {
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30 private final Loop lirLoop;
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31 private LoopFragmentInside inside;
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32 private LoopFragmentWhole whole;
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33 private boolean isCounted; //TODO (gd) detect
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34 private LoopsData data;
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35
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36 LoopEx(Loop lirLoop, LoopsData data) {
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37 this.lirLoop = lirLoop;
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38 this.data = data;
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39 }
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40
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41 public Loop lirLoop() {
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42 return lirLoop;
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43 }
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44
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45 public LoopFragmentInside inside() {
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46 if (inside == null) {
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47 inside = new LoopFragmentInside(this);
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48 }
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49 return inside;
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50 }
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51
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52 public LoopFragmentWhole whole() {
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53 if (whole == null) {
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54 whole = new LoopFragmentWhole(this);
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55 }
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56 return whole;
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57 }
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58
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59 @SuppressWarnings("unused")
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60 public LoopFragmentInsideFrom insideFrom(FixedNode point) {
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61 // TODO (gd)
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62 return null;
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63 }
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64
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65 @SuppressWarnings("unused")
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66 public LoopFragmentInsideBefore insideBefore(FixedNode point) {
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67 // TODO (gd)
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68 return null;
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69 }
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70
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71 public boolean isInvariant(Node n) {
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72 return !whole().contains(n);
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73 }
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74
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75 public LoopBeginNode loopBegin() {
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76 return lirLoop().loopBegin();
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77 }
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78
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79 public FixedNode predecessor() {
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80 return (FixedNode) loopBegin().forwardEnd().predecessor();
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81 }
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82
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83 public FixedNode entryPoint() {
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84 return loopBegin().forwardEnd();
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85 }
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86
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87 public boolean isCounted() {
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88 return isCounted;
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89 }
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90
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91 public LoopEx parent() {
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92 if (lirLoop.parent == null) {
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93 return null;
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94 }
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95 return data.loop(lirLoop.parent);
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96 }
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97
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98 public int size() {
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99 return whole().nodes().count();
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100 }
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101 }