Mercurial > hg > truffle

annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/gen/risc/RiscTemplateCreator.java @ 3733:e233f5660da4

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Added Java files from Maxine project.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sat, 17 Dec 2011 19:59:18 +0100
parents
children bc8527f3071c
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3733
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1 /*
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2 * Copyright (c) 2007, 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.max.asm.gen.risc;
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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.max.asm.gen.*;
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28 import com.sun.max.asm.gen.risc.field.*;
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29 import com.sun.max.program.*;
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30
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31 /**
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32 */
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33 public class RiscTemplateCreator {
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34
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35 public RiscTemplateCreator() {
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36 }
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37
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38 private List<RiscTemplate> templates = new LinkedList<RiscTemplate>();
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39
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40 public List<RiscTemplate> templates() {
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41 return templates;
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42 }
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43
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44 protected RiscTemplate createTemplate(InstructionDescription instructionDescription) {
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45 return new RiscTemplate(instructionDescription);
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46 }
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47
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48 public List<RiscTemplate> createOptionTemplates(List<RiscTemplate> templateList, OptionField optionField) {
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49 final List<RiscTemplate> newTemplates = new LinkedList<RiscTemplate>();
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50 for (RiscTemplate template : templateList) {
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51 RiscTemplate canonicalRepresentative = null;
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52 if (optionField.defaultOption() != null) {
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53 canonicalRepresentative = (RiscTemplate) template.clone();
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54 canonicalRepresentative.organizeOption(optionField.defaultOption(), null);
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55 }
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56 for (Option option : optionField.options()) {
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57 if (option.equals(optionField.defaultOption())) {
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58 newTemplates.add(canonicalRepresentative);
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59 } else {
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60 final RiscTemplate templateWithOption = (RiscTemplate) template.clone();
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61 templateWithOption.organizeOption(option, canonicalRepresentative);
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62 newTemplates.add(templateWithOption);
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63 }
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64 }
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65 }
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66 return newTemplates;
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67 }
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68
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69 private int serial;
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70 private HashMap<String, List<RiscTemplate>> nameToTemplates = new HashMap<String, List<RiscTemplate>>() {
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71 @Override
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72 public List<RiscTemplate> get(Object key) {
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73 List<RiscTemplate> list = super.get(key);
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74 if (list == null) {
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75 list = new ArrayList<RiscTemplate>();
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76 put((String) key, list);
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77 }
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78 return list;
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79 }
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80 };
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81
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82 public List<RiscTemplate> nameToTemplates(String name) {
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83 return nameToTemplates.get(name);
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84 }
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85
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86 public void createTemplates(RiscInstructionDescriptionCreator instructionDescriptionCreator) {
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87 final List<RiscTemplate> initialTemplates = new LinkedList<RiscTemplate>();
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88 for (InstructionDescription instructionDescription : instructionDescriptionCreator.instructionDescriptions()) {
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89 final RiscTemplate template = createTemplate(instructionDescription);
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90 initialTemplates.add(template);
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91 RiscInstructionDescriptionVisitor.Static.visitInstructionDescription(template, instructionDescription);
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92 }
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93 for (RiscTemplate initialTemplate : initialTemplates) {
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94 List<RiscTemplate> newTemplates = new LinkedList<RiscTemplate>();
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95 newTemplates.add(initialTemplate);
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96 for (OptionField optionField : initialTemplate.optionFields()) {
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97 newTemplates = createOptionTemplates(newTemplates, optionField);
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98 }
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99 for (RiscTemplate template : newTemplates) {
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100 serial++;
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101 template.setSerial(serial);
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102 templates.add(template);
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103 nameToTemplates.get(template.internalName()).add(template);
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104
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105 // Create the link to the non-synthetic instruction from which a synthetic instruction is derived.
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106 if (template.instructionDescription().isSynthetic()) {
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107 boolean found = false;
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108 outerLoop:
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109 for (List<RiscTemplate> list : nameToTemplates.values()) {
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110 final Iterator<RiscTemplate> iterator = list.iterator();
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111 while (iterator.hasNext()) {
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112 final RiscTemplate rawTemplate = iterator.next();
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113 if (!rawTemplate.instructionDescription().isSynthetic() && (template.opcodeMask() & rawTemplate.opcodeMask()) == rawTemplate.opcodeMask() &&
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114 (template.opcode() & rawTemplate.opcodeMask()) == rawTemplate.opcode()) {
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115 template.setSynthesizedFrom(rawTemplate);
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116 found = true;
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117 break outerLoop;
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118 }
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119 }
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120 }
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121 ProgramError.check(found);
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122 }
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123 }
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124 }
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125 }
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126
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127 }