Mercurial > hg > truffle
annotate graal/com.oracle.max.cri/src/com/oracle/max/cri/ci/CiDebugInfo.java @ 5322:7f038eb09d91
rename and generalize: LIRGeneratorTool.emitCallToRuntime(CiRuntimeCall, ...) -> LIRGeneratorTool.emitCall(Object target, CiKind returnKind, CiKind[] parameterKinds, ...)
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 30 Apr 2012 13:34:06 +0200 |
parents | 12c63380e7ff |
children | dc71b06d09f8 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2009, 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.oracle.max.cri.ci; |
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24 |
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25 import java.io.*; |
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26 |
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27 /** |
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28 * Represents the debugging information for a particular place in the code, |
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29 * which includes the code position, a reference map, and deoptimization information. |
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30 */ |
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31 public class CiDebugInfo implements Serializable { |
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32 |
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33 private static final long serialVersionUID = -6047206624915812516L; |
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34 |
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35 /** |
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36 * The code position (including all inlined methods) of this debug info. |
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37 * If this is a {@link CiFrame} instance, then it is also the deoptimization information for each inlined frame. |
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38 */ |
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39 public final CiCodePos codePos; |
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40 |
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41 /** |
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42 * The reference map for the registers at this point. The reference map is <i>packed</i> in that |
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43 * for bit {@code k} in byte {@code n}, it refers to the register whose |
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44 * {@linkplain CiRegister#number number} is {@code (k + n * 8)}. |
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45 */ |
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46 public final CiBitMap registerRefMap; |
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47 |
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48 /** |
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49 * The reference map for the stack frame at this point. A set bit at {@code k} in the map |
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50 * represents stack slot number {@code k}. |
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51 */ |
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52 public final CiBitMap frameRefMap; |
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53 |
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54 /** |
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55 * Creates a new {@code CiDebugInfo} from the given values. |
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56 * |
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57 * @param codePos the {@linkplain CiCodePos code position} or {@linkplain CiFrame frame} info |
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58 * @param registerRefMap the register map |
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59 * @param frameRefMap the reference map for {@code frame}, which may be {@code null} |
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60 */ |
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61 public CiDebugInfo(CiCodePos codePos, CiBitMap registerRefMap, CiBitMap frameRefMap) { |
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62 this.codePos = codePos; |
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63 this.registerRefMap = registerRefMap; |
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64 this.frameRefMap = frameRefMap; |
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65 } |
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66 |
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67 /** |
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68 * @return {@code true} if this debug information has a frame |
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69 */ |
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70 public boolean hasFrame() { |
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71 return codePos instanceof CiFrame; |
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72 } |
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73 |
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74 /** |
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75 * @return {@code true} if this debug info has a reference map for the registers |
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76 */ |
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77 public boolean hasRegisterRefMap() { |
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78 return registerRefMap != null && registerRefMap.size() > 0; |
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79 } |
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80 |
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81 /** |
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82 * @return {@code true} if this debug info has a reference map for the stack |
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83 */ |
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84 public boolean hasStackRefMap() { |
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85 return frameRefMap != null && frameRefMap.size() > 0; |
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86 } |
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87 |
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88 |
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89 /** |
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90 * Gets the deoptimization information for each inlined frame (if available). |
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91 * |
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92 * @return {@code null} if no frame de-opt info is {@linkplain #hasDebugFrame available} |
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93 */ |
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94 public CiFrame frame() { |
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95 if (hasFrame()) { |
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96 return (CiFrame) codePos; |
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97 } |
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98 return null; |
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99 } |
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100 |
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101 @Override |
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102 public String toString() { |
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103 return CiUtil.append(new StringBuilder(100), this, null).toString(); |
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104 } |
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105 } |