Mercurial > hg > graal-jvmci-8
annotate graal/GraalCompiler/src/com/sun/c1x/C1XCompilation.java @ 2731:a2f62de90c76
Removed unused optimization settings. Removed unused imports.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Thu, 19 May 2011 17:20:55 +0200 |
parents | ae1c50a03297 |
children | beea26b73b3f |
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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 |
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24 package com.sun.c1x; |
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25 |
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26 import java.util.*; |
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27 |
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28 import com.oracle.graal.graph.*; |
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29 import com.oracle.max.asm.*; |
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30 import com.sun.c1x.alloc.*; |
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31 import com.sun.c1x.asm.*; |
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32 import com.sun.c1x.gen.*; |
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33 import com.sun.c1x.gen.LIRGenerator.*; |
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34 import com.sun.c1x.graph.*; |
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35 import com.sun.c1x.lir.*; |
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36 import com.sun.c1x.observer.*; |
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37 import com.sun.c1x.value.*; |
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38 import com.sun.cri.ci.*; |
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39 import com.sun.cri.ri.*; |
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40 |
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41 /** |
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42 * This class encapsulates global information about the compilation of a particular method, |
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43 * including a reference to the runtime, statistics about the compiled code, etc. |
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44 */ |
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45 public final class C1XCompilation { |
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46 |
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47 private static ThreadLocal<C1XCompilation> currentCompilation = new ThreadLocal<C1XCompilation>(); |
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48 |
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49 public final C1XCompiler compiler; |
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50 public final CiTarget target; |
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51 public final RiRuntime runtime; |
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52 public final RiMethod method; |
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53 public final RiRegisterConfig registerConfig; |
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54 public final CiStatistics stats; |
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55 public final CiAssumptions assumptions = new CiAssumptions(); |
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56 public final FrameState placeholderState; |
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57 |
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58 public final Graph graph = new Graph(); |
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59 |
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60 private boolean hasExceptionHandlers; |
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61 private final C1XCompilation parent; |
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62 |
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63 /** |
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64 * @see #setNotTypesafe() |
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65 * @see #isTypesafe() |
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66 */ |
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67 private boolean typesafe = true; |
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68 |
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69 private int nextID = 1; |
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70 |
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71 private FrameMap frameMap; |
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72 private TargetMethodAssembler assembler; |
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73 |
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74 private IR hir; |
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75 |
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76 private LIRGenerator lirGenerator; |
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77 |
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78 /** |
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79 * Creates a new compilation for the specified method and runtime. |
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80 * |
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81 * @param compiler the compiler |
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82 * @param method the method to be compiled or {@code null} if generating code for a stub |
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83 * @param osrBCI the bytecode index for on-stack replacement, if requested |
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84 * @param stats externally supplied statistics object to be used if not {@code null} |
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85 */ |
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86 public C1XCompilation(C1XCompiler compiler, RiMethod method, int osrBCI, CiStatistics stats) { |
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87 if (osrBCI != -1) { |
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88 throw new CiBailout("No OSR supported"); |
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89 } |
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90 this.parent = currentCompilation.get(); |
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91 currentCompilation.set(this); |
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92 this.compiler = compiler; |
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93 this.target = compiler.target; |
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94 this.runtime = compiler.runtime; |
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95 this.method = method; |
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96 this.stats = stats == null ? new CiStatistics() : stats; |
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97 this.registerConfig = method == null ? compiler.globalStubRegisterConfig : runtime.getRegisterConfig(method); |
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98 this.placeholderState = method != null && method.minimalDebugInfo() ? new FrameState(0, 0, 0, 0, graph) : null; |
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99 |
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100 if (compiler.isObserved()) { |
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101 compiler.fireCompilationStarted(new CompilationEvent(this)); |
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102 } |
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103 } |
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104 |
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105 public void close() { |
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106 currentCompilation.set(parent); |
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107 } |
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108 |
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109 public IR hir() { |
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110 return hir; |
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111 } |
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112 |
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113 /** |
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114 * Records that this compilation has exception handlers. |
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115 */ |
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116 public void setHasExceptionHandlers() { |
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117 hasExceptionHandlers = true; |
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118 } |
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119 |
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120 /** |
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121 * Translates a given kind to a canonical architecture kind. |
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122 * This is an identity function for all but {@link CiKind#Word} |
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123 * which is translated to {@link CiKind#Int} or {@link CiKind#Long} |
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124 * depending on whether or not this is a {@linkplain #is64Bit() 64-bit} |
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125 * compilation. |
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126 */ |
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127 public CiKind archKind(CiKind kind) { |
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128 if (kind.isWord()) { |
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129 return target.arch.is64bit() ? CiKind.Long : CiKind.Int; |
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130 } |
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131 return kind; |
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132 } |
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133 |
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134 /** |
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135 * Determines if two given kinds are equal at the {@linkplain #archKind(CiKind) architecture} level. |
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136 */ |
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137 public boolean archKindsEqual(CiKind kind1, CiKind kind2) { |
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138 return archKind(kind1) == archKind(kind2); |
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139 } |
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140 |
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141 /** |
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142 * Records an assumption that the specified type has no finalizable subclasses. |
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143 * |
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144 * @param receiverType the type that is assumed to have no finalizable subclasses |
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145 * @return {@code true} if the assumption was recorded and can be assumed; {@code false} otherwise |
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146 */ |
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147 public boolean recordNoFinalizableSubclassAssumption(RiType receiverType) { |
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148 return false; |
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149 } |
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150 |
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151 /** |
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152 * Converts this compilation to a string. |
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153 * |
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154 * @return a string representation of this compilation |
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155 */ |
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156 @Override |
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157 public String toString() { |
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158 return "compile: " + method; |
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159 } |
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160 |
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161 /** |
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162 * Builds the block map for the specified method. |
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163 * |
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164 * @param method the method for which to build the block map |
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165 * @param osrBCI the OSR bytecode index; {@code -1} if this is not an OSR |
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166 * @return the block map for the specified method |
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167 */ |
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168 public BlockMap getBlockMap(RiMethod method) { |
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169 // PERF: cache the block map for methods that are compiled or inlined often |
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170 BlockMap map = new BlockMap(method); |
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171 map.build(); |
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172 if (compiler.isObserved()) { |
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173 String label = CiUtil.format("BlockListBuilder %f %r %H.%n(%p)", method, true); |
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174 compiler.fireCompilationEvent(new CompilationEvent(this, label, map, method.code().length)); |
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175 } |
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176 stats.bytecodeCount += method.code().length; |
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177 return map; |
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178 } |
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179 |
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180 /** |
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181 * Returns the frame map of this compilation. |
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182 * @return the frame map |
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183 */ |
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184 public FrameMap frameMap() { |
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185 return frameMap; |
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186 } |
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187 |
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188 public TargetMethodAssembler assembler() { |
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189 if (assembler == null) { |
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190 AbstractAssembler asm = compiler.backend.newAssembler(registerConfig); |
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191 assembler = new TargetMethodAssembler(asm); |
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192 assembler.setFrameSize(frameMap.frameSize()); |
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193 assembler.targetMethod.setCustomStackAreaOffset(frameMap.offsetToCustomArea()); |
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194 } |
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195 return assembler; |
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196 } |
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197 |
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198 public boolean hasExceptionHandlers() { |
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199 return hasExceptionHandlers; |
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200 } |
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201 |
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202 public CiResult compile() { |
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203 CiTargetMethod targetMethod; |
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204 try { |
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205 emitHIR(); |
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206 emitLIR(); |
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207 targetMethod = emitCode(); |
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208 |
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209 if (C1XOptions.PrintMetrics) { |
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210 C1XMetrics.BytecodesCompiled += method.code().length; |
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211 } |
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212 } catch (CiBailout b) { |
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213 return new CiResult(null, b, stats); |
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214 } catch (Throwable t) { |
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215 if (C1XOptions.BailoutOnException) { |
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216 return new CiResult(null, new CiBailout("Exception while compiling: " + method, t), stats); |
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217 } else { |
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218 throw new RuntimeException(t); |
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219 } |
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220 } finally { |
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221 if (compiler.isObserved()) { |
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222 compiler.fireCompilationFinished(new CompilationEvent(this)); |
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223 } |
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224 } |
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225 |
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226 return new CiResult(targetMethod, null, stats); |
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227 } |
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228 |
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229 public IR emitHIR() { |
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230 hir = new IR(this); |
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231 hir.build(); |
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232 return hir; |
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233 } |
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234 |
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235 public void initFrameMap(int numberOfLocks) { |
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236 frameMap = this.compiler.backend.newFrameMap(method, numberOfLocks); |
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237 } |
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238 |
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239 private void emitLIR() { |
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240 if (C1XOptions.GenLIR) { |
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241 if (C1XOptions.PrintTimers) { |
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242 C1XTimers.LIR_CREATE.start(); |
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243 } |
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244 |
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245 initFrameMap(hir.maxLocks()); |
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246 |
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247 lirGenerator = compiler.backend.newLIRGenerator(this); |
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248 |
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249 for (LIRBlock begin : hir.linearScanOrder()) { |
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250 lirGenerator.doBlock(begin); |
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251 } |
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252 |
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253 if (C1XOptions.PrintTimers) { |
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254 C1XTimers.LIR_CREATE.stop(); |
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255 } |
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256 |
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257 new LinearScan(this, hir, lirGenerator, frameMap()).allocate(); |
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258 } |
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259 } |
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260 |
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261 private CiTargetMethod emitCode() { |
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262 if (C1XOptions.GenLIR && C1XOptions.GenCode) { |
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263 final LIRAssembler lirAssembler = compiler.backend.newLIRAssembler(this); |
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264 lirAssembler.emitCode(hir.linearScanOrder()); |
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265 |
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266 // generate code for slow cases |
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267 lirAssembler.emitLocalStubs(); |
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268 |
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269 // generate deoptimization stubs |
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270 ArrayList<DeoptimizationStub> deoptimizationStubs = lirGenerator.deoptimizationStubs(); |
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271 if (deoptimizationStubs != null) { |
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272 for (DeoptimizationStub stub : deoptimizationStubs) { |
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273 lirAssembler.emitDeoptizationStub(stub); |
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274 } |
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275 } |
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276 |
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277 // generate traps at the end of the method |
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278 lirAssembler.emitTraps(); |
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279 |
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280 CiTargetMethod targetMethod = assembler().finishTargetMethod(method, runtime, lirAssembler.registerRestoreEpilogueOffset, false); |
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281 if (assumptions.count() > 0) { |
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282 targetMethod.setAssumptions(assumptions); |
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283 } |
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284 |
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285 if (compiler.isObserved()) { |
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286 compiler.fireCompilationEvent(new CompilationEvent(this, "After code generation", hir.getHIRStartBlock(), false, true, targetMethod)); |
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287 } |
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288 |
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289 if (C1XOptions.PrintTimers) { |
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290 C1XTimers.CODE_CREATE.stop(); |
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291 } |
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292 return targetMethod; |
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293 } |
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294 |
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295 return null; |
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296 } |
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297 |
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298 public int nextID() { |
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299 return nextID++; |
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300 } |
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301 |
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302 public static C1XCompilation compilation() { |
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303 C1XCompilation compilation = currentCompilation.get(); |
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304 assert compilation != null; |
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305 return compilation; |
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306 } |
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307 } |