Mercurial > hg > truffle
annotate graal/GraalCompiler/src/com/sun/c1x/debug/BlockPrinter.java @ 2697:bd4c3be86fb7
Backend clean up.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 18 May 2011 15:14:55 +0200 |
parents | bd235cb4375a |
children | d3fc4fe063bf |
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.debug; |
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24 |
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25 import com.sun.c1x.graph.*; |
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26 import com.sun.c1x.ir.*; |
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27 import com.sun.c1x.util.*; |
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28 import com.sun.c1x.value.*; |
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29 |
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30 /** |
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31 * Prints a listing for a {@linkplain BlockBegin block}. |
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32 */ |
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33 public class BlockPrinter implements BlockClosure { |
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34 |
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35 private final InstructionPrinter ip; |
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36 private final boolean cfgOnly; |
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37 |
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38 public BlockPrinter(IR ir, InstructionPrinter ip, boolean cfgOnly) { |
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39 this.ip = ip; |
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40 this.cfgOnly = cfgOnly; |
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41 } |
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42 |
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43 public void apply(BlockBegin block) { |
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44 if (cfgOnly) { |
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45 ip.printInstruction(block); |
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46 ip.out().println(); |
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47 } else { |
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48 printBlock(block); |
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49 } |
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50 } |
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51 |
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52 public void printBlock(BlockBegin block) { |
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53 ip.printInstruction(block); |
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54 LogStream out = ip.out(); |
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55 out.println(); |
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56 printFrameState(block.stateBefore(), out); |
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57 out.println(); |
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58 |
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59 ip.printInstructionListingHeader(); |
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60 |
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61 for (Instruction i = block.next(); i != null; i = i.next()) { |
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62 ip.printInstructionListing(i); |
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63 } |
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64 out.println(); |
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65 |
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66 } |
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67 |
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68 private static void printFrameState(FrameState newFrameState, LogStream out) { |
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69 int startPosition = out.position(); |
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70 if (newFrameState.stackSize() == 0) { |
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71 out.print("empty stack"); |
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72 } else { |
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73 out.print("stack ["); |
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74 int i = 0; |
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75 while (i < newFrameState.stackSize()) { |
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76 if (i > 0) { |
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77 out.print(", "); |
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78 } |
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79 Value value = newFrameState.stackAt(i); |
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80 out.print(i + ":" + Util.valueString(value)); |
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81 if (value == null) { |
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82 i++; |
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83 } else { |
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84 i += value.kind.sizeInSlots(); |
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85 if (value instanceof Phi) { |
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86 Phi phi = (Phi) value; |
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87 if (phi.operand() != null) { |
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88 out.print(" "); |
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89 out.print(phi.operand().toString()); |
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90 } |
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91 } |
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92 } |
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93 } |
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94 out.print(']'); |
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95 } |
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96 if (newFrameState.locksSize() != 0) { |
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97 // print out the lines on the line below this |
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98 // one at the same indentation level. |
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99 out.println(); |
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100 out.fillTo(startPosition, ' '); |
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101 out.print("locks ["); |
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102 for (int i = 0; i < newFrameState.locksSize(); i++) { |
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103 Value value = newFrameState.lockAt(i); |
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104 if (i > 0) { |
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105 out.print(", "); |
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106 } |
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107 out.print(i + ":"); |
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108 if (value == null) { |
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109 // synchronized methods push null on the lock stack |
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110 out.print("this"); |
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111 } else { |
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112 out.print(Util.valueString(value)); |
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113 } |
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114 } |
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115 out.print("]"); |
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116 } |
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117 } |
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118 } |