Mercurial > hg > graal-compiler
annotate graal/GraalCompiler/src/com/sun/c1x/lir/LIRDebugInfo.java @ 2709:7b7dbe19fafb
Remove all unresolved cases from HotspotXirGenerator, use more explicit Deopt, Deopt to lastState instead of stateBefore
author | Gilles Duboscq <gilles.duboscq@oracle.com> |
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date | Thu, 19 May 2011 11:36:41 +0200 |
parents | 16b9a8b5ad39 |
children | 7ed72769d51a |
rev | line source |
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1 /* |
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2 * Copyright (c) 2009, 2010, 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.lir; |
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24 |
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25 import java.util.*; |
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26 |
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27 import com.sun.c1x.*; |
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28 import com.sun.c1x.ir.*; |
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29 import com.sun.c1x.value.*; |
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30 import com.sun.cri.ci.*; |
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31 |
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32 /** |
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33 * This class represents debugging and deoptimization information attached to a LIR instruction. |
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34 * |
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35 * @author Marcelo Cintra |
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36 * @author Thomas Wuerthinger |
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37 * @author Ben L. Titzer |
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38 */ |
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39 public class LIRDebugInfo { |
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40 |
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41 public abstract static class ValueLocator { |
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42 public abstract CiValue getLocation(Value value); |
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43 } |
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44 |
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45 public final FrameState state; |
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46 public final List<ExceptionHandler> exceptionHandlers; |
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47 public CiDebugInfo debugInfo; |
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48 |
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49 public LIRDebugInfo(FrameState state, List<ExceptionHandler> exceptionHandlers) { |
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50 assert state != null; |
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51 this.state = state; |
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52 this.exceptionHandlers = exceptionHandlers; |
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53 } |
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54 |
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55 private LIRDebugInfo(LIRDebugInfo info) { |
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56 this.state = info.state; |
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57 |
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58 // deep copy of exception handlers |
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59 if (info.exceptionHandlers != null) { |
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60 this.exceptionHandlers = new ArrayList<ExceptionHandler>(info.exceptionHandlers.size()); |
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61 for (ExceptionHandler h : info.exceptionHandlers) { |
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62 this.exceptionHandlers.add(new ExceptionHandler(h)); |
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63 } |
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64 } else { |
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65 this.exceptionHandlers = null; |
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66 } |
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67 } |
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68 |
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69 public LIRDebugInfo copy() { |
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70 return new LIRDebugInfo(this); |
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71 } |
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72 |
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73 public void setOop(CiValue location, C1XCompilation compilation, CiBitMap frameRefMap, CiBitMap regRefMap) { |
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74 CiTarget target = compilation.target; |
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75 if (location.isAddress()) { |
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76 CiAddress stackLocation = (CiAddress) location; |
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77 assert stackLocation.index.isIllegal(); |
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78 if (stackLocation.base == CiRegister.Frame.asValue()) { |
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79 int offset = stackLocation.displacement; |
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80 assert offset % target.wordSize == 0 : "must be aligned"; |
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81 int stackMapIndex = offset / target.wordSize; |
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82 setBit(frameRefMap, stackMapIndex); |
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83 } |
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84 } else if (location.isStackSlot()) { |
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85 CiStackSlot stackSlot = (CiStackSlot) location; |
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86 assert !stackSlot.inCallerFrame(); |
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87 assert target.spillSlotSize == target.wordSize; |
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88 setBit(frameRefMap, stackSlot.index()); |
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89 } else { |
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90 assert location.isRegister() : "objects can only be in a register"; |
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91 CiRegisterValue registerLocation = (CiRegisterValue) location; |
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92 int reg = registerLocation.reg.number; |
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93 assert reg >= 0 : "object cannot be in non-object register " + registerLocation.reg; |
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94 assert reg < target.arch.registerReferenceMapBitCount; |
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95 setBit(regRefMap, reg); |
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96 } |
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97 } |
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98 |
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99 public CiDebugInfo debugInfo() { |
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100 assert debugInfo != null : "debug info not allocated yet"; |
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101 return debugInfo; |
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102 } |
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103 |
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104 public boolean hasDebugInfo() { |
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105 return debugInfo != null; |
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106 } |
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107 |
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108 public static void setBit(CiBitMap refMap, int bit) { |
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109 assert !refMap.get(bit) : "Ref map entry " + bit + " is already set."; |
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110 refMap.set(bit); |
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111 } |
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112 |
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113 @Override |
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114 public String toString() { |
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115 return state.toString(); |
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116 } |
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117 } |