Mercurial > hg > graal-jvmci-8
annotate graal/GraalCompiler/src/com/sun/c1x/debug/InstructionPrinter.java @ 2546:e1b3db8031ee
Removed liveness marking.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 21:54:31 +0200 |
parents | 16b9a8b5ad39 |
children | 91d3952f7eb7 |
rev | line source |
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2507
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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.sun.c1x.debug; |
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24 |
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25 import static com.sun.c1x.debug.InstructionPrinter.InstructionLineColumn.*; |
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26 |
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27 import com.sun.c1x.ir.*; |
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28 |
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29 /** |
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30 * A {@link ValueVisitor} for {@linkplain #printInstruction(Value) printing} |
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31 * an {@link Instruction} as an expression or statement. |
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32 * |
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33 * @author Doug Simon |
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34 */ |
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35 public class InstructionPrinter { |
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36 |
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37 |
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38 /** |
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39 * The columns printed in a tabulated instruction |
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40 * {@linkplain InstructionPrinter#printInstructionListing(Value) listing}. |
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41 */ |
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42 public enum InstructionLineColumn { |
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43 /** |
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44 * The instruction's bytecode index. |
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45 */ |
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46 BCI(2, "bci"), |
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47 |
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48 /** |
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49 * The instruction's use count. |
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50 */ |
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51 USE(7, "use"), |
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52 |
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53 /** |
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54 * The instruction as a {@linkplain com.sun.c1x.util.Util#valueString(com.sun.c1x.ir.Value) value}. |
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55 */ |
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56 VALUE(12, "tid"), |
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57 |
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58 /** |
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59 * The instruction formatted as an expression or statement. |
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60 */ |
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61 INSTRUCTION(19, "instr"), |
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62 |
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63 END(60, ""); |
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64 |
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65 final int position; |
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66 final String label; |
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67 |
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68 private InstructionLineColumn(int position, String label) { |
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69 this.position = position; |
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70 this.label = label; |
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71 } |
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72 |
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73 /** |
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74 * Prints this column's label to a given stream after padding the stream with '_' characters |
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75 * until its {@linkplain LogStream#position() position} is equal to this column's position. |
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76 * @param out the print stream |
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77 */ |
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78 public void printLabel(LogStream out) { |
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79 out.fillTo(position + out.indentationLevel(), '_'); |
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80 out.print(label); |
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81 } |
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82 |
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83 /** |
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84 * Prints space characters to a given stream until its {@linkplain LogStream#position() position} |
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85 * is equal to this column's position. |
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86 * @param out the print stream |
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87 */ |
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88 public void advance(LogStream out) { |
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89 out.fillTo(position + out.indentationLevel(), ' '); |
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90 } |
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91 } |
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92 |
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93 private final LogStream out; |
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94 |
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95 public InstructionPrinter(LogStream out) { |
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96 this.out = out; |
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97 } |
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98 |
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99 public LogStream out() { |
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100 return out; |
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101 } |
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102 |
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103 /** |
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104 * Prints a given instruction as an expression or statement. |
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105 * |
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106 * @param instruction the instruction to print |
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107 */ |
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108 public void printInstruction(Value instruction) { |
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109 instruction.print(out); |
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110 } |
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111 |
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112 |
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113 /** |
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114 * Prints a header for the tabulated data printed by {@link #printInstructionListing(Value)}. |
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115 */ |
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116 public void printInstructionListingHeader() { |
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117 BCI.printLabel(out); |
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118 USE.printLabel(out); |
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119 VALUE.printLabel(out); |
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120 INSTRUCTION.printLabel(out); |
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121 END.printLabel(out); |
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122 out.println(); |
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123 } |
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124 |
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125 /** |
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126 * Prints an instruction listing on one line. The instruction listing is composed of the |
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127 * columns specified by {@link InstructionLineColumn}. |
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128 * |
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129 * @param instruction the instruction to print |
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130 */ |
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131 public void printInstructionListing(Value instruction) { |
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132 int indentation = out.indentationLevel(); |
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133 out.fillTo(BCI.position + indentation, ' '). |
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134 print(instruction instanceof Instruction ? ((Instruction) instruction).bci() : 0). |
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135 fillTo(USE.position + indentation, ' '). |
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136 print("0"). |
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137 fillTo(VALUE.position + indentation, ' '). |
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138 print(instruction). |
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139 fillTo(INSTRUCTION.position + indentation, ' '); |
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140 printInstruction(instruction); |
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141 String flags = instruction.flagsToString(); |
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142 if (!flags.isEmpty()) { |
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143 out.print(" [flags: " + flags + "]"); |
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144 } |
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145 if (instruction instanceof StateSplit) { |
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146 out.print(" [state: " + ((StateSplit) instruction).stateBefore() + "]"); |
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147 } |
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148 out.println(); |
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149 } |
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150 } |