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annotate graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotReferenceMap.java @ 21556:48c1ebd24120

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renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Wed, 27 May 2015 00:36:16 +0200
parents 9579a3c62a9e
children b9f9b8af17ff
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1 /*
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2 * Copyright (c) 2009, 2014, 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
8d8732e14447 Refactor reference maps.
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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.jvmci.hotspot;
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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.oracle.jvmci.code.CodeUtil.RefMapFormatter;
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28 import com.oracle.jvmci.code.*;
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29 import com.oracle.jvmci.common.*;
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30 import com.oracle.jvmci.meta.*;
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31
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32 public final class HotSpotReferenceMap extends ReferenceMap {
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33
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34 static final int OOP64 = 0b1010;
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35 static final int OOP32 = 0b01;
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36 static final int NARROW_LOW = OOP32;
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37 static final int NARROW_HIGH = OOP32 << 2;
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38 static final int NARROW_BOTH = NARROW_LOW | NARROW_HIGH;
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39
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40 private enum MapEntry {
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41 NoReference(0),
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42 WideOop(OOP64),
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43 NarrowOopLowerHalf(NARROW_LOW),
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44 NarrowOopUpperHalf(NARROW_HIGH),
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45 TwoNarrowOops(NARROW_BOTH),
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46 Illegal(-1);
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47
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48 MapEntry(int pattern) {
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49 this.pattern = pattern;
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50 }
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51
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52 final int pattern;
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53
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54 /**
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55 * Create enum values from OopMap.
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56 * <p>
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57 * These bits can have the following values (MSB first):
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58 *
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59 * <pre>
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60 * 0000 - contains no references
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61 * 1010 - contains a wide oop
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62 * 0001 - contains a narrow oop in the lower half
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63 * 0101 - contains a narrow oop in the upper half
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64 * 0101 - contains two narrow oops
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65 * </pre>
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66 *
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67 * @see HotSpotReferenceMap#registerRefMap
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68 * @see HotSpotReferenceMap#frameRefMap
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69 */
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70 static MapEntry getFromBits(int idx, HotSpotOopMap set) {
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71 int n = set.get(idx);
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72 switch (n) {
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73 case 0:
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74 return NoReference;
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75 case OOP64:
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76 return WideOop;
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77 case NARROW_LOW:
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78 return NarrowOopLowerHalf;
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79 case NARROW_HIGH:
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80 return NarrowOopUpperHalf;
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81 case NARROW_BOTH:
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82 return TwoNarrowOops;
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83 default:
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84 return Illegal;
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85 }
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86 }
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87
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88 String toBitString() {
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89 int bits = toBit(this);
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90 if (bits == -1) {
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91 return "---";
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92 }
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93 return String.format("%3s", Integer.toBinaryString(bits)).replace(' ', '0');
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94 }
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95
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96 static int toBit(MapEntry type) {
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97 return type.pattern;
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98 }
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99 }
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100
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101 /**
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102 * A specialized bit set that represents both wide and narrow oops in an efficient manner. The
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103 * map consists of 4 bit entries that represent 8 bytes of memory.
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104 *
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105 */
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106 class HotSpotOopMap implements Cloneable {
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107
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108 /**
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109 * Each entry is 4 bits long and covers 8 bytes of memory.
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110 */
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111 private static final int BITS_PER_ENTRY = 4;
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112 private static final int BITS_PER_ELEMENT = 64;
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113
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114 public HotSpotOopMap(int i) {
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115 words = new long[(i * BITS_PER_ENTRY + BITS_PER_ELEMENT) / BITS_PER_ELEMENT];
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116 }
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117
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118 public HotSpotOopMap(HotSpotOopMap other) {
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119 words = other.words.clone();
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120 }
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121
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122 private long[] words;
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123
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124 private int get(int i) {
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125 return getEntry(i);
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126 }
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127
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128 public void or(HotSpotOopMap src) {
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129 if (words.length < src.words.length) {
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130 long[] newWords = new long[src.words.length];
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131 System.arraycopy(src.words, 0, newWords, 0, src.words.length);
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132 for (int i = 0; i < words.length; i++) {
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133 newWords[i] |= words[i];
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134 }
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135 words = newWords;
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136 } else {
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137 for (int i = 0; i < src.words.length; i++) {
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138 words[i] |= src.words[i];
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139 }
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140 }
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141 }
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142
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diff changeset
143 private void setOop(int regIdx) {
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144 setEntry(regIdx, OOP64);
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145 }
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parents: 18706
diff changeset
146
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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diff changeset
147 public int size() {
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148 return words.length * BITS_PER_ELEMENT / BITS_PER_ENTRY;
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149 }
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diff changeset
150
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diff changeset
151 @Override
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diff changeset
152 public HotSpotOopMap clone() {
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153 return new HotSpotOopMap(this);
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154 }
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155
21002
95931055060f fix handling of uncompressed vector oopmaps
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parents: 20981
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156 private void setNarrowOop(int offset) {
95931055060f fix handling of uncompressed vector oopmaps
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157 setNarrowEntry(offset, OOP32);
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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158 }
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159
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160 private void setEntry(int regIdx, int value) {
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parents: 18706
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161 assert regIdx % 2 == 0 : "must be alinged";
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parents: 18706
diff changeset
162 int bitIndex = (regIdx >> 1) * BITS_PER_ENTRY;
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163 int wordIndex = bitIndex / BITS_PER_ELEMENT;
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parents: 18706
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164 int shift = bitIndex - wordIndex * BITS_PER_ELEMENT;
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parents: 18706
diff changeset
165 if (wordIndex >= words.length) {
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diff changeset
166 if (value == 0) {
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parents: 18706
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167 // Nothing to do since bits are clear
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168 return;
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Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
169 }
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170 words = Arrays.copyOf(words, wordIndex + 1);
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171 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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parents: 18706
diff changeset
172 assert verifyUpdate(this, this);
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173 long orig = words[wordIndex];
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174 words[wordIndex] = (orig & (~(0b1111L << shift))) | ((long) value << shift);
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parents: 18706
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175 assert get(regIdx / 2) == value;
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parents: 18706
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176 assert verifyUpdate(this, this);
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parents: 18706
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177 }
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parents: 18706
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178
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179 private void setNarrowEntry(int offset, int value) {
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180 int regIdx = offset >> 1;
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parents: 18706
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181 boolean low = offset % 2 == 0;
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parents: 18706
diff changeset
182 int bitIndex = regIdx * BITS_PER_ENTRY;
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parents: 18706
diff changeset
183 int wordIndex = bitIndex / BITS_PER_ELEMENT;
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parents: 18706
diff changeset
184 int shift = bitIndex - wordIndex * BITS_PER_ELEMENT;
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parents: 18706
diff changeset
185 if (wordIndex >= words.length) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
186 if (value == 0) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
187 // Nothing to do since bits are clear
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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188 return;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
189 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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parents: 18706
diff changeset
190 words = Arrays.copyOf(words, wordIndex + 1);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
191 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
192 long originalValue = words[wordIndex];
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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diff changeset
193 int current = ((int) (originalValue >> shift)) & 0b1111;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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parents: 18706
diff changeset
194 if (current == OOP64) {
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parents: 18706
diff changeset
195 current = 0;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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parents: 18706
diff changeset
196 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
197 long newValue;
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parents: 18706
diff changeset
198 if (value != 0) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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parents: 18706
diff changeset
199 newValue = current | (low ? value : (value << 2));
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
200 } else {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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parents: 18706
diff changeset
201 newValue = current & (low ? 0b1100 : 0b0011);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
202 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
203 long masked = originalValue & (~(0b1111L << shift));
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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parents: 18706
diff changeset
204 words[wordIndex] = masked | (newValue << shift);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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parents: 18706
diff changeset
205 assert verifyUpdate(this, this);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
206 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
207
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
208 private int getEntry(int regIdx) {
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parents: 18706
diff changeset
209 int bitIndex = regIdx * BITS_PER_ENTRY;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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diff changeset
210 int wordIndex = bitIndex / BITS_PER_ELEMENT;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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parents: 18706
diff changeset
211 int shift = bitIndex - wordIndex * BITS_PER_ELEMENT;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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parents: 18706
diff changeset
212 return ((int) (words[wordIndex] >>> shift)) & 0b1111;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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parents: 18706
diff changeset
213 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
214
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
215 @Override
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parents: 18706
diff changeset
216 public boolean equals(Object other) {
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parents: 18706
diff changeset
217 if (this == other) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
218 return true;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
219 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
220
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
221 if (other instanceof HotSpotOopMap) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
222 HotSpotOopMap otherMap = (HotSpotOopMap) other;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
223 int limit = Math.min(words.length, otherMap.words.length);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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parents: 18706
diff changeset
224 for (int i = 0; i < limit; i++) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
225 if (words[i] != otherMap.words[i]) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
226 return false;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
227 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
228 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
229 for (int i = limit; i < words.length; i++) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
230 if (words[i] != 0) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
231 return false;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
232 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
233 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
234 for (int i = limit; i < otherMap.words.length; i++) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
235 if (otherMap.words[i] != 0) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
236 return false;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
237 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
238 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
239 return true;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
240 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
241 return false;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
242 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
243
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
244 @Override
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
245 public int hashCode() {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
246 long h = 1234;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
247 for (int i = words.length; --i >= 0;) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
248 h ^= words[i] * (i + 1);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
249 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
250 return (int) ((h >> 32) ^ h);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
251 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
252
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
253 @Override
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
254 public String toString() {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
255 int count = 0;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
256 StringBuilder sb = new StringBuilder();
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
257 sb.append("[");
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
258 for (int idx = 0; idx < size(); idx++) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
259 MapEntry dstType = MapEntry.getFromBits(idx, this);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
260 if (dstType == MapEntry.NoReference) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
261 continue;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
262 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
263 if (count > 0) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
264 sb.append(", ");
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
265 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
266 if (dstType == MapEntry.Illegal) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
267 int value = get(idx);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
268 sb.append("0x");
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
269 sb.append(Integer.toHexString(value));
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
270 } else {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
271 sb.append(idx);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
272 sb.append(':');
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
273 sb.append(dstType);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
274 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
275 count++;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
276 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
277 sb.append("]");
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
278 return sb.toString();
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
279 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
280 }
13725
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
281
13726
343541fb3b49 Support narrow oops in reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents: 13725
diff changeset
282 /**
16114
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
283 * Contains 3 bits per scalar register, and n*3 bits per n-word vector register (e.g., on a
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
284 * 64-bit system, a 256-bit vector register requires 12 reference map bits).
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
285 * <p>
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
286 * These bits can have the following values (LSB first):
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
287 *
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
288 * <pre>
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
289 * 000 - contains no references
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
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parents: 16094
diff changeset
290 * 100 - contains a wide oop
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Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
291 * 110 - contains a narrow oop in the lower half
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
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parents: 16094
diff changeset
292 * 101 - contains a narrow oop in the upper half
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
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293 * 111 - contains two narrow oops
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
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294 * </pre>
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295 */
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296 private final HotSpotOopMap registerRefMap;
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297
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298 /**
16114
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299 * Contains 3 bits per stack word.
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300 * <p>
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301 * These bits can have the following values (LSB first):
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
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302 *
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
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parents: 16094
diff changeset
303 * <pre>
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
304 * 000 - contains no references
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
305 * 100 - contains a wide oop
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
306 * 110 - contains a narrow oop in the lower half
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
307 * 101 - contains a narrow oop in the upper half
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
308 * 111 - contains two narrow oops
a0d1dfc113b8 Better documentation for HotSpotReferenceMap.
Roland Schatz <roland.schatz@oracle.com>
parents: 16094
diff changeset
309 * </pre>
13726
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diff changeset
310 */
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311 private final HotSpotOopMap frameRefMap;
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312
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diff changeset
313 private final TargetDescription target;
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parents: 13936
diff changeset
314
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315 public HotSpotReferenceMap(int registerCount, int frameSlotCount, TargetDescription target) {
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316 if (registerCount > 0) {
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317 this.registerRefMap = new HotSpotOopMap(registerCount);
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318 } else {
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319 this.registerRefMap = null;
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parents:
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320 }
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321 this.frameRefMap = new HotSpotOopMap(frameSlotCount);
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322 this.target = target;
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323 }
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diff changeset
324
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325 private HotSpotReferenceMap(HotSpotReferenceMap other) {
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326 this.registerRefMap = other.registerRefMap.clone();
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327 this.frameRefMap = other.frameRefMap.clone();
18608
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diff changeset
328 this.target = other.target;
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Josef Eisl <josef.eisl@jku.at>
parents: 18607
diff changeset
329 }
66e31efead2f Make ReferenceMap Clonable.
Josef Eisl <josef.eisl@jku.at>
parents: 18607
diff changeset
330
66e31efead2f Make ReferenceMap Clonable.
Josef Eisl <josef.eisl@jku.at>
parents: 18607
diff changeset
331 @Override
66e31efead2f Make ReferenceMap Clonable.
Josef Eisl <josef.eisl@jku.at>
parents: 18607
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332 public ReferenceMap clone() {
66e31efead2f Make ReferenceMap Clonable.
Josef Eisl <josef.eisl@jku.at>
parents: 18607
diff changeset
333 return new HotSpotReferenceMap(this);
66e31efead2f Make ReferenceMap Clonable.
Josef Eisl <josef.eisl@jku.at>
parents: 18607
diff changeset
334 }
66e31efead2f Make ReferenceMap Clonable.
Josef Eisl <josef.eisl@jku.at>
parents: 18607
diff changeset
335
18607
6383574293f9 Introduce FrameMap.clearReference().
Josef Eisl <josef.eisl@jku.at>
parents: 18349
diff changeset
336 // setters
21002
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337 @Override
95931055060f fix handling of uncompressed vector oopmaps
Tom Rodriguez <tom.rodriguez@oracle.com>
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338 public void setRegister(int idx, LIRKind kind) {
95931055060f fix handling of uncompressed vector oopmaps
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339 set(registerRefMap, idx * 2, kind);
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diff changeset
340 }
8d8732e14447 Refactor reference maps.
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parents:
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341
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diff changeset
342 @Override
21002
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diff changeset
343 public void setStackSlot(int offset, LIRKind kind) {
95931055060f fix handling of uncompressed vector oopmaps
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344 assert offset % bytesPerElement(kind) == 0 : "unaligned value in ReferenceMap";
95931055060f fix handling of uncompressed vector oopmaps
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345 set(frameRefMap, offset / 4, kind);
95931055060f fix handling of uncompressed vector oopmaps
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346 }
95931055060f fix handling of uncompressed vector oopmaps
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parents: 20981
diff changeset
347
95931055060f fix handling of uncompressed vector oopmaps
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 20981
diff changeset
348 private void set(HotSpotOopMap refMap, int index, LIRKind kind) {
16094
c0b8d395368b Introduce LIRKind to accurately track oop references in backend.
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parents: 16093
diff changeset
349 if (kind.isDerivedReference()) {
21552
9579a3c62a9e use skeleton findbugs jar containing only SuppresFBWarnings to avoid external dependency for JVMCI classes (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents: 21413
diff changeset
350 throw new JVMCIError("derived reference cannot be inserted in ReferenceMap");
16094
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parents: 16093
diff changeset
351 }
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parents: 16093
diff changeset
352
21002
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parents: 20981
diff changeset
353 int bytesPerElement = bytesPerElement(kind);
95931055060f fix handling of uncompressed vector oopmaps
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parents: 20981
diff changeset
354 int length = kind.getPlatformKind().getVectorLength();
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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parents: 18706
diff changeset
355 if (bytesPerElement == 8) {
21002
95931055060f fix handling of uncompressed vector oopmaps
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 20981
diff changeset
356 for (int i = 0; i < length; i++) {
95931055060f fix handling of uncompressed vector oopmaps
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 20981
diff changeset
357 if (kind.isReference(i)) {
95931055060f fix handling of uncompressed vector oopmaps
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 20981
diff changeset
358 refMap.setOop(index + i * 2);
95931055060f fix handling of uncompressed vector oopmaps
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 20981
diff changeset
359 }
95931055060f fix handling of uncompressed vector oopmaps
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 20981
diff changeset
360 }
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
361 } else if (bytesPerElement == 4) {
21002
95931055060f fix handling of uncompressed vector oopmaps
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parents: 20981
diff changeset
362 for (int i = 0; i < length; i++) {
95931055060f fix handling of uncompressed vector oopmaps
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 20981
diff changeset
363 if (kind.isReference(i)) {
95931055060f fix handling of uncompressed vector oopmaps
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 20981
diff changeset
364 refMap.setNarrowOop(index + i);
95931055060f fix handling of uncompressed vector oopmaps
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 20981
diff changeset
365 }
95931055060f fix handling of uncompressed vector oopmaps
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 20981
diff changeset
366 }
16094
c0b8d395368b Introduce LIRKind to accurately track oop references in backend.
Roland Schatz <roland.schatz@oracle.com>
parents: 16093
diff changeset
367 } else {
21002
95931055060f fix handling of uncompressed vector oopmaps
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 20981
diff changeset
368 assert kind.isValue() : "unknown reference kind " + kind;
16094
c0b8d395368b Introduce LIRKind to accurately track oop references in backend.
Roland Schatz <roland.schatz@oracle.com>
parents: 16093
diff changeset
369 }
c0b8d395368b Introduce LIRKind to accurately track oop references in backend.
Roland Schatz <roland.schatz@oracle.com>
parents: 16093
diff changeset
370 }
c0b8d395368b Introduce LIRKind to accurately track oop references in backend.
Roland Schatz <roland.schatz@oracle.com>
parents: 16093
diff changeset
371
21002
95931055060f fix handling of uncompressed vector oopmaps
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parents: 20981
diff changeset
372 private int bytesPerElement(LIRKind kind) {
16094
c0b8d395368b Introduce LIRKind to accurately track oop references in backend.
Roland Schatz <roland.schatz@oracle.com>
parents: 16093
diff changeset
373 PlatformKind platformKind = kind.getPlatformKind();
21002
95931055060f fix handling of uncompressed vector oopmaps
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parents: 20981
diff changeset
374 return target.getSizeInBytes(platformKind) / platformKind.getVectorLength();
13725
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
375 }
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
376
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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parents: 18706
diff changeset
377 public HotSpotOopMap getFrameMap() {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
378 return frameRefMap == null ? null : (HotSpotOopMap) frameRefMap.clone();
18663
058cbb02b58c Added public getters for frame and register map
adlertz
parents: 18616
diff changeset
379 }
058cbb02b58c Added public getters for frame and register map
adlertz
parents: 18616
diff changeset
380
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
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parents: 18706
diff changeset
381 public HotSpotOopMap getRegisterMap() {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
382 return registerRefMap == null ? null : (HotSpotOopMap) registerRefMap.clone();
18663
058cbb02b58c Added public getters for frame and register map
adlertz
parents: 18616
diff changeset
383 }
058cbb02b58c Added public getters for frame and register map
adlertz
parents: 18616
diff changeset
384
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
385 static MapEntry[] entries(HotSpotOopMap fixedMap) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
386 MapEntry[] result = new MapEntry[fixedMap.size()];
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
387 for (int idx = 0; idx < fixedMap.size(); idx++) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
388 MapEntry dstType = MapEntry.getFromBits(idx, fixedMap);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
389 result[idx] = dstType;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
390 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
391 return result;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
392 }
18609
c7fe48cd8087 Add ReferenceMap.mergeMaps().
Josef Eisl <josef.eisl@jku.at>
parents: 18608
diff changeset
393
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
394 private static boolean verifyUpdate(HotSpotOopMap dst, HotSpotOopMap src) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
395 return verifyUpdate(dst, src, true);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
396 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
397
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
398 private static boolean verifyUpdate(HotSpotOopMap dst, HotSpotOopMap src, boolean doAssert) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
399 for (int idx = 0; idx < Math.min(src.size(), dst.size()); idx++) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
400 if (!verifyUpdateEntry(idx, dst, src, doAssert)) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
401 return false;
18609
c7fe48cd8087 Add ReferenceMap.mergeMaps().
Josef Eisl <josef.eisl@jku.at>
parents: 18608
diff changeset
402 }
c7fe48cd8087 Add ReferenceMap.mergeMaps().
Josef Eisl <josef.eisl@jku.at>
parents: 18608
diff changeset
403 }
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
404 return true;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
405 }
18609
c7fe48cd8087 Add ReferenceMap.mergeMaps().
Josef Eisl <josef.eisl@jku.at>
parents: 18608
diff changeset
406
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
407 private static boolean verifyUpdateEntry(int idx, HotSpotOopMap dst, HotSpotOopMap src, boolean doAssert) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
408 MapEntry dstType = MapEntry.getFromBits(idx, dst);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
409 MapEntry srcType = MapEntry.getFromBits(idx, src);
18609
c7fe48cd8087 Add ReferenceMap.mergeMaps().
Josef Eisl <josef.eisl@jku.at>
parents: 18608
diff changeset
410
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
411 if (dstType == MapEntry.Illegal || srcType == MapEntry.Illegal) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
412 assert !doAssert : String.format("Illegal RefMap bit pattern: %s (0b%s), %s (0b%s)", dstType, dstType.toBitString(), srcType, srcType.toBitString());
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
413 return false;
18609
c7fe48cd8087 Add ReferenceMap.mergeMaps().
Josef Eisl <josef.eisl@jku.at>
parents: 18608
diff changeset
414 }
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
415 switch (dstType) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
416 case NoReference:
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
417 return true;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
418 case WideOop:
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
419 switch (srcType) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
420 case NoReference:
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
421 case WideOop:
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
422 return true;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
423 default:
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
424 assert false : String.format("Illegal RefMap combination: %s (0b%s), %s (0b%s)", dstType, dstType.toBitString(), srcType, srcType.toBitString());
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
425 return false;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
426 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
427 case TwoNarrowOops:
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
428 case NarrowOopLowerHalf:
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
429 case NarrowOopUpperHalf:
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
430 switch (srcType) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
431 case TwoNarrowOops:
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
432 case NarrowOopLowerHalf:
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
433 case NarrowOopUpperHalf:
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
434 case NoReference:
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
435 return true;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
436 default:
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
437 assert false : String.format("Illegal RefMap combination: %s (0b%s), %s (0b%s)", dstType, dstType.toBitString(), srcType, srcType.toBitString());
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
438 return false;
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
439 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
440 default:
18609
c7fe48cd8087 Add ReferenceMap.mergeMaps().
Josef Eisl <josef.eisl@jku.at>
parents: 18608
diff changeset
441 return false;
c7fe48cd8087 Add ReferenceMap.mergeMaps().
Josef Eisl <josef.eisl@jku.at>
parents: 18608
diff changeset
442 }
c7fe48cd8087 Add ReferenceMap.mergeMaps().
Josef Eisl <josef.eisl@jku.at>
parents: 18608
diff changeset
443 }
c7fe48cd8087 Add ReferenceMap.mergeMaps().
Josef Eisl <josef.eisl@jku.at>
parents: 18608
diff changeset
444
18342
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
445 @Override
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
446 public int hashCode() {
18349
7aa6180a3486 fixed NullPointerException in HotSpotReferenceMap.equals
Doug Simon <doug.simon@oracle.com>
parents: 18342
diff changeset
447 throw new UnsupportedOperationException();
18342
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
448 }
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
449
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
450 @Override
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
451 public boolean equals(Object obj) {
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
452 if (this == obj) {
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
453 return true;
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
454 }
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
455 if (obj instanceof HotSpotReferenceMap) {
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
456 HotSpotReferenceMap that = (HotSpotReferenceMap) obj;
18349
7aa6180a3486 fixed NullPointerException in HotSpotReferenceMap.equals
Doug Simon <doug.simon@oracle.com>
parents: 18342
diff changeset
457 if (this.frameRefMap.equals(that.frameRefMap) && Objects.equals(this.registerRefMap, that.registerRefMap) && this.target.equals(that.target)) {
18342
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
458 return true;
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
459 }
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
460 }
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
461 return false;
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
462 }
d60dd21329f2 implemented .equals() for CompilationResult and the objects it encapsulates
Doug Simon <doug.simon@oracle.com>
parents: 16114
diff changeset
463
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
464 @Override
13725
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
465 public boolean hasRegisterRefMap() {
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
466 return registerRefMap != null && registerRefMap.size() > 0;
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
467 }
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
468
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
469 @Override
13725
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
470 public boolean hasFrameRefMap() {
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
471 return frameRefMap != null && frameRefMap.size() > 0;
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
472 }
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
473
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
474 @Override
14562
45812e05cdb3 Move narrow oop handling in reference maps to hotspot specific code.
Roland Schatz <roland.schatz@oracle.com>
parents: 13936
diff changeset
475 public void appendRegisterMap(StringBuilder sb, RefMapFormatter formatter) {
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
476 for (int idx = 0; idx < registerRefMap.size(); idx++) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
477 MapEntry dstType = MapEntry.getFromBits(idx, registerRefMap);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
478 if (dstType != MapEntry.NoReference) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
479 sb.append(' ').append(formatter.formatRegister(idx)).append(':').append(dstType);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
480 }
13725
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
481 }
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
482 }
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
483
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
484 @Override
14562
45812e05cdb3 Move narrow oop handling in reference maps to hotspot specific code.
Roland Schatz <roland.schatz@oracle.com>
parents: 13936
diff changeset
485 public void appendFrameMap(StringBuilder sb, RefMapFormatter formatter) {
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
486 for (int idx = 0; idx < frameRefMap.size(); idx++) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
487 MapEntry dstType = MapEntry.getFromBits(idx, frameRefMap);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
488 if (dstType != MapEntry.NoReference) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
489 sb.append(' ').append(formatter.formatStackSlot(idx)).append(':').append(dstType);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
490 }
13725
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
491 }
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
492 }
20981
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
493
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
494 @Override
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
495 public String toString() {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
496 StringBuilder sb = new StringBuilder();
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
497 if (registerRefMap != null) {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
498 sb.append("Registers = ");
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
499 sb.append(registerRefMap);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
500 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
501 sb.append("Stack = ");
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
502 sb.append(frameRefMap);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
503 return sb.toString();
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
504 }
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
505
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
506 public void verify() {
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
507 assert verifyUpdate(frameRefMap, frameRefMap);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
508 assert registerRefMap == null || verifyUpdate(registerRefMap, registerRefMap);
92fc95e8667d Add more efficient implementation of HotSpotReferenceMap
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 18706
diff changeset
509 }
13725
8d8732e14447 Refactor reference maps.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
510 }