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annotate graal/GraalCompiler/src/com/sun/c1x/C1XCompilation.java @ 2564:274360f98f97

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Remove inlining (2nd part) removed IRScope
author Gilles Duboscq <gilles.duboscq@oracle.com>
date Fri, 29 Apr 2011 13:19:17 +0200
parents a384fac3fd34
children cc1f1d396288
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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.sun.c1x.alloc.*;
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29 import com.sun.c1x.asm.*;
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30 import com.sun.c1x.gen.*;
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31 import com.sun.c1x.gen.LIRGenerator.DeoptimizationStub;
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32 import com.sun.c1x.graph.*;
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33 import com.sun.c1x.ir.*;
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34 import com.sun.c1x.lir.*;
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35 import com.sun.c1x.observer.*;
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36 import com.sun.c1x.value.*;
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37 import com.sun.cri.ci.*;
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38 import com.sun.cri.ri.*;
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39
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40 /**
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41 * This class encapsulates global information about the compilation of a particular method,
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42 * including a reference to the runtime, statistics about the compiled code, etc.
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43 *
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44 * @author Ben L. Titzer
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45 */
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46 public final class C1XCompilation {
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47
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48 private static ThreadLocal<C1XCompilation> currentCompilation = new ThreadLocal<C1XCompilation>();
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49
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50 public final C1XCompiler compiler;
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51 public final CiTarget target;
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52 public final RiRuntime runtime;
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53 public final RiMethod method;
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54 public final RiRegisterConfig registerConfig;
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55 public final CiStatistics stats;
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56 public final CiAssumptions assumptions = new CiAssumptions();
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57 public final FrameState placeholderState;
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58
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59 private boolean hasExceptionHandlers;
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60 private final C1XCompilation parent;
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61
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62 /**
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63 * @see #setNotTypesafe()
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64 * @see #isTypesafe()
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65 */
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66 private boolean typesafe = true;
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67
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68 private int nextID = 1;
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69
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70 private FrameMap frameMap;
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71 private AbstractAssembler assembler;
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72
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73 private IR hir;
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74
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75 private LIRGenerator lirGenerator;
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76
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77 /**
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78 * Creates a new compilation for the specified method and runtime.
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79 *
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80 * @param compiler the compiler
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81 * @param method the method to be compiled or {@code null} if generating code for a stub
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82 * @param osrBCI the bytecode index for on-stack replacement, if requested
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83 * @param stats externally supplied statistics object to be used if not {@code null}
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84 */
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85 public C1XCompilation(C1XCompiler compiler, RiMethod method, int osrBCI, CiStatistics stats) {
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86 if (osrBCI != -1) {
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87 throw new CiBailout("No OSR supported");
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88 }
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89 this.parent = currentCompilation.get();
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90 currentCompilation.set(this);
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91 this.compiler = compiler;
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92 this.target = compiler.target;
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93 this.runtime = compiler.runtime;
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94 this.method = method;
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95 this.stats = stats == null ? new CiStatistics() : stats;
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96 this.registerConfig = method == null ? compiler.globalStubRegisterConfig : runtime.getRegisterConfig(method);
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97 this.placeholderState = method != null && method.minimalDebugInfo() ? new MutableFrameState(method, 0, 0, 0) : null;
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98
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99 if (compiler.isObserved()) {
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100 compiler.fireCompilationStarted(new CompilationEvent(this));
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101 }
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102 }
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103
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104 public void close() {
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105 currentCompilation.set(parent);
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106 }
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107
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108 public IR hir() {
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109 return hir;
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110 }
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111
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112 /**
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113 * Records that this compilation has exception handlers.
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114 */
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115 public void setHasExceptionHandlers() {
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116 hasExceptionHandlers = true;
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117 }
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118
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119 /**
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120 * Translates a given kind to a canonical architecture kind.
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121 * This is an identity function for all but {@link CiKind#Word}
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122 * which is translated to {@link CiKind#Int} or {@link CiKind#Long}
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123 * depending on whether or not this is a {@linkplain #is64Bit() 64-bit}
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124 * compilation.
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125 */
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126 public CiKind archKind(CiKind kind) {
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127 if (kind.isWord()) {
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128 return target.arch.is64bit() ? CiKind.Long : CiKind.Int;
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129 }
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130 return kind;
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131 }
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132
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133 /**
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134 * Determines if two given kinds are equal at the {@linkplain #archKind(CiKind) architecture} level.
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135 */
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136 public boolean archKindsEqual(CiKind kind1, CiKind kind2) {
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137 return archKind(kind1) == archKind(kind2);
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138 }
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139
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140 /**
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141 * Records an assumption that the specified type has no finalizable subclasses.
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142 *
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143 * @param receiverType the type that is assumed to have no finalizable subclasses
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144 * @return {@code true} if the assumption was recorded and can be assumed; {@code false} otherwise
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145 */
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146 public boolean recordNoFinalizableSubclassAssumption(RiType receiverType) {
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147 return false;
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148 }
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149
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150 /**
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151 * Converts this compilation to a string.
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152 *
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153 * @return a string representation of this compilation
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154 */
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155 @Override
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156 public String toString() {
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157 return "compile: " + method;
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158 }
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159
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160 /**
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161 * Builds the block map for the specified method.
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162 *
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163 * @param method the method for which to build the block map
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164 * @param osrBCI the OSR bytecode index; {@code -1} if this is not an OSR
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165 * @return the block map for the specified method
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166 */
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167 public BlockMap getBlockMap(RiMethod method) {
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168 // PERF: cache the block map for methods that are compiled or inlined often
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169 BlockMap map = new BlockMap(method, hir.numberOfBlocks());
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170 if (!map.build(C1XOptions.PhiLoopStores)) {
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171 throw new CiBailout("build of BlockMap failed for " + method);
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172 } else {
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173 if (compiler.isObserved()) {
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174 String label = CiUtil.format("BlockListBuilder %f %r %H.%n(%p)", method, true);
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175 compiler.fireCompilationEvent(new CompilationEvent(this, label, map, method.code().length));
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176 }
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177 }
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178 map.cleanup();
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179 stats.bytecodeCount += map.numberOfBytes();
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180 stats.blockCount += map.numberOfBlocks();
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181 return map;
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182 }
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183
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184 /**
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185 * Returns the frame map of this compilation.
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186 * @return the frame map
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187 */
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188 public FrameMap frameMap() {
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189 return frameMap;
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190 }
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191
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192 public AbstractAssembler masm() {
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193 if (assembler == null) {
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194 assembler = compiler.backend.newAssembler(registerConfig);
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195 assembler.setFrameSize(frameMap.frameSize());
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196 assembler.targetMethod.setCustomStackAreaOffset(frameMap.offsetToCustomArea());
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197 }
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198 return assembler;
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199 }
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200
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201 public boolean hasExceptionHandlers() {
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202 return hasExceptionHandlers;
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203 }
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204
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205 public CiResult compile() {
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206 CiTargetMethod targetMethod;
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207 try {
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208 emitHIR();
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209 emitLIR();
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210 targetMethod = emitCode();
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211
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212 if (C1XOptions.PrintMetrics) {
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213 C1XMetrics.BytecodesCompiled += method.code().length;
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214 }
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215 } catch (CiBailout b) {
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216 return new CiResult(null, b, stats);
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217 } catch (Throwable t) {
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218 return new CiResult(null, new CiBailout("Exception while compiling: " + method, t), stats);
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219 } finally {
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220 if (compiler.isObserved()) {
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221 compiler.fireCompilationFinished(new CompilationEvent(this));
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222 }
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223 }
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224
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225 return new CiResult(targetMethod, null, stats);
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226 }
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227
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228 public IR emitHIR() {
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229 hir = new IR(this);
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230 hir.build();
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231 return hir;
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232 }
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233
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234 public void initFrameMap(int numberOfLocks) {
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235 frameMap = this.compiler.backend.newFrameMap(method, numberOfLocks);
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236 }
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237
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238 private void emitLIR() {
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239 if (C1XOptions.GenLIR) {
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240 if (C1XOptions.PrintTimers) {
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241 C1XTimers.LIR_CREATE.start();
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242 }
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243
2564
274360f98f97 Remove inlining (2nd part) removed IRScope
Gilles Duboscq <gilles.duboscq@oracle.com>
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244 initFrameMap(hir.maxLocks());
2507
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245
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246 lirGenerator = compiler.backend.newLIRGenerator(this);
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247 for (BlockBegin begin : hir.linearScanOrder()) {
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248 lirGenerator.doBlock(begin);
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249 }
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250
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251 if (C1XOptions.PrintTimers) {
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252 C1XTimers.LIR_CREATE.stop();
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253 }
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254
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255 new LinearScan(this, hir, lirGenerator, frameMap()).allocate();
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256 }
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257 }
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258
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259 private CiTargetMethod emitCode() {
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260 if (C1XOptions.GenLIR && C1XOptions.GenCode) {
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261 final LIRAssembler lirAssembler = compiler.backend.newLIRAssembler(this);
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262 lirAssembler.emitCode(hir.linearScanOrder());
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263
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264 // generate code for slow cases
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265 lirAssembler.emitLocalStubs();
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266
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267 // generate exception adapters
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268 lirAssembler.emitExceptionEntries();
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269
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270 // generate deoptimization stubs
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271 ArrayList<DeoptimizationStub> deoptimizationStubs = lirGenerator.deoptimizationStubs();
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272 if (deoptimizationStubs != null) {
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273 for (DeoptimizationStub stub : deoptimizationStubs) {
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274 lirAssembler.emitDeoptizationStub(stub);
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275 }
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276 }
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277
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278 // generate traps at the end of the method
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279 lirAssembler.emitTraps();
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280
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281 CiTargetMethod targetMethod = masm().finishTargetMethod(method, runtime, lirAssembler.registerRestoreEpilogueOffset, false);
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282 if (assumptions.count() > 0) {
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283 targetMethod.setAssumptions(assumptions);
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284 }
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285
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286 if (compiler.isObserved()) {
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287 compiler.fireCompilationEvent(new CompilationEvent(this, "After code generation", hir.startBlock, false, true, targetMethod));
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288 }
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289
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290 if (C1XOptions.PrintTimers) {
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291 C1XTimers.CODE_CREATE.stop();
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292 }
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293 return targetMethod;
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294 }
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295
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296 return null;
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297 }
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298
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299 public int nextID() {
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300 return nextID++;
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301 }
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302
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303 public static C1XCompilation compilation() {
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304 C1XCompilation compilation = currentCompilation.get();
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305 assert compilation != null;
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306 return compilation;
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307 }
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308
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309 public static C1XCompilation compilationOrNull() {
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310 return currentCompilation.get();
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311 }
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312 }