Mercurial > hg > truffle
annotate graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotLIRGenerator.java @ 9612:66db0353f55a
compilation is explicitly given a CallingConvention for the graph being compiled instead of deriving it from a method
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 07 May 2013 23:38:53 +0200 |
parents | 99ef9bcb3f32 |
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1 /* |
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2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.oracle.graal.hotspot.amd64; |
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24 |
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25 import static com.oracle.graal.amd64.AMD64.*; |
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26 import static com.oracle.graal.api.code.ValueUtil.*; |
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27 import static com.oracle.graal.hotspot.HotSpotBackend.*; |
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28 |
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29 import java.lang.reflect.*; |
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30 import java.util.*; |
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31 |
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32 import com.oracle.graal.amd64.*; |
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33 import com.oracle.graal.api.code.*; |
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34 import com.oracle.graal.api.meta.*; |
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35 import com.oracle.graal.asm.*; |
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36 import com.oracle.graal.asm.amd64.AMD64Address.Scale; |
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37 import com.oracle.graal.compiler.amd64.*; |
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38 import com.oracle.graal.compiler.gen.*; |
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39 import com.oracle.graal.graph.*; |
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40 import com.oracle.graal.hotspot.*; |
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41 import com.oracle.graal.hotspot.meta.*; |
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42 import com.oracle.graal.hotspot.nodes.*; |
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43 import com.oracle.graal.hotspot.stubs.*; |
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44 import com.oracle.graal.lir.*; |
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45 import com.oracle.graal.lir.StandardOp.ParametersOp; |
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46 import com.oracle.graal.lir.StandardOp.PlaceholderOp; |
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47 import com.oracle.graal.lir.amd64.*; |
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48 import com.oracle.graal.lir.amd64.AMD64Move.CompareAndSwapOp; |
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49 import com.oracle.graal.lir.amd64.AMD64Move.MoveFromRegOp; |
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50 import com.oracle.graal.nodes.*; |
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51 import com.oracle.graal.nodes.java.MethodCallTargetNode.InvokeKind; |
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52 |
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53 /** |
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54 * LIR generator specialized for AMD64 HotSpot. |
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55 */ |
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56 public class AMD64HotSpotLIRGenerator extends AMD64LIRGenerator implements HotSpotLIRGenerator { |
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57 |
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58 private HotSpotRuntime runtime() { |
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59 return (HotSpotRuntime) runtime; |
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60 } |
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61 |
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62 protected AMD64HotSpotLIRGenerator(StructuredGraph graph, CodeCacheProvider runtime, TargetDescription target, FrameMap frameMap, ResolvedJavaMethod method, CallingConvention cc, LIR lir) { |
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63 super(graph, runtime, target, frameMap, method, cc, lir); |
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64 } |
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65 |
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66 /** |
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67 * The slot reserved for storing the original return address when a frame is marked for |
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68 * deoptimization. The return address slot in the callee is overwritten with the address of a |
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69 * deoptimization stub. |
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70 */ |
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71 StackSlot deoptimizationRescueSlot; |
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72 |
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73 /** |
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74 * Utility for emitting the instruction to save RBP. |
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75 */ |
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76 class SaveRbp { |
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77 |
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78 final PlaceholderOp placeholder; |
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79 |
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80 /** |
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81 * The slot reserved for saving RBP. |
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82 */ |
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83 final StackSlot reservedSlot; |
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84 |
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85 public SaveRbp(PlaceholderOp placeholder) { |
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86 this.placeholder = placeholder; |
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87 this.reservedSlot = frameMap.allocateSpillSlot(Kind.Long); |
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88 assert reservedSlot.getRawOffset() == -16 : reservedSlot.getRawOffset(); |
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89 } |
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90 |
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91 /** |
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92 * Replaces this operation with the appropriate move for saving rbp. |
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93 * |
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94 * @param useStack specifies if rbp must be saved to the stack |
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95 */ |
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96 public AllocatableValue finalize(boolean useStack) { |
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97 AllocatableValue dst; |
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98 if (useStack) { |
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99 dst = reservedSlot; |
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100 } else { |
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101 frameMap.freeSpillSlot(reservedSlot); |
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102 dst = newVariable(Kind.Long); |
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103 } |
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104 |
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105 placeholder.replace(lir, new MoveFromRegOp(dst, rbp.asValue(Kind.Long))); |
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106 return dst; |
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107 } |
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108 } |
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109 |
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110 private SaveRbp saveRbp; |
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111 |
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112 /** |
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113 * List of epilogue operations that need to restore RBP. |
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114 */ |
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115 List<AMD64HotSpotEpilogueOp> epilogueOps = new ArrayList<>(2); |
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116 |
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117 @Override |
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118 public void append(LIRInstruction op) { |
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119 super.append(op); |
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120 if (op instanceof AMD64HotSpotEpilogueOp) { |
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121 epilogueOps.add((AMD64HotSpotEpilogueOp) op); |
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122 } |
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123 } |
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124 |
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125 @SuppressWarnings("hiding") |
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126 @Override |
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127 protected DebugInfoBuilder createDebugInfoBuilder(NodeMap<Value> nodeOperands) { |
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128 assert runtime().config.basicLockSize == 8; |
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129 HotSpotLockStack lockStack = new HotSpotLockStack(frameMap, Kind.Long); |
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130 return new HotSpotDebugInfoBuilder(nodeOperands, lockStack); |
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131 } |
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132 |
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133 @Override |
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134 public StackSlot getLockSlot(int lockDepth) { |
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135 return ((HotSpotDebugInfoBuilder) debugInfoBuilder).lockStack().makeLockSlot(lockDepth); |
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136 } |
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137 |
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138 @Override |
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139 protected void emitPrologue() { |
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140 |
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141 CallingConvention incomingArguments = cc; |
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142 |
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143 RegisterValue rbpParam = rbp.asValue(Kind.Long); |
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144 Value[] params = new Value[incomingArguments.getArgumentCount() + 1]; |
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145 for (int i = 0; i < params.length - 1; i++) { |
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146 params[i] = toStackKind(incomingArguments.getArgument(i)); |
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147 if (isStackSlot(params[i])) { |
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148 StackSlot slot = ValueUtil.asStackSlot(params[i]); |
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149 if (slot.isInCallerFrame() && !lir.hasArgInCallerFrame()) { |
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150 lir.setHasArgInCallerFrame(); |
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151 } |
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152 } |
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153 } |
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154 params[params.length - 1] = rbpParam; |
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155 ParametersOp paramsOp = new ParametersOp(params); |
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156 |
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157 append(paramsOp); |
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158 |
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159 saveRbp = new SaveRbp(new PlaceholderOp(currentBlock, lir.lir(currentBlock).size())); |
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160 append(saveRbp.placeholder); |
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161 |
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162 for (LocalNode local : graph.getNodes(LocalNode.class)) { |
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163 Value param = params[local.index()]; |
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164 assert param.getKind() == local.kind().getStackKind(); |
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165 setResult(local, emitMove(param)); |
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166 } |
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167 } |
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168 |
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169 @Override |
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170 protected void emitReturn(Value input) { |
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171 append(new AMD64HotSpotReturnOp(input)); |
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172 } |
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173 |
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174 @Override |
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175 protected boolean needOnlyOopMaps() { |
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176 // Stubs only need oop maps |
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177 return runtime().asStub(method) != null; |
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178 } |
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179 |
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180 /** |
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181 * Map from debug infos that need to be updated with callee save information to the operations |
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182 * that provide the information. |
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183 */ |
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184 Map<LIRFrameState, AMD64RegistersPreservationOp> calleeSaveInfo = new HashMap<>(); |
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185 |
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186 private LIRFrameState currentRuntimeCallInfo; |
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187 |
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188 @Override |
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189 protected void emitCall(RuntimeCallTarget callTarget, Value result, Value[] arguments, Value[] temps, LIRFrameState info) { |
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190 currentRuntimeCallInfo = info; |
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191 super.emitCall(callTarget, result, arguments, temps, info); |
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192 } |
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193 |
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194 protected AMD64SaveRegistersOp emitSaveRegisters(Register[] savedRegisters, StackSlot[] savedRegisterLocations) { |
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195 AMD64SaveRegistersOp save = new AMD64SaveRegistersOp(savedRegisters, savedRegisterLocations); |
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196 append(save); |
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197 return save; |
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198 } |
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199 |
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200 protected void emitRestoreRegisters(AMD64SaveRegistersOp save) { |
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201 append(new AMD64RestoreRegistersOp(save.getSlots().clone(), save)); |
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202 } |
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203 |
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204 @Override |
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205 public Variable emitCall(RuntimeCallTarget callTarget, CallingConvention callCc, DeoptimizingNode info, Value... args) { |
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206 Stub stub = runtime().asStub(method); |
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207 boolean isCRuntimeCall = ((HotSpotRuntimeCallTarget) callTarget).isCRuntimeCall(); |
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208 assert !isCRuntimeCall || stub != null : "direct call to C runtime can only be made from compiled stubs, not from " + method; |
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209 |
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210 AMD64SaveRegistersOp save = null; |
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211 StackSlot[] savedRegisterLocations = null; |
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212 if (isCRuntimeCall) { |
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213 if (stub.preservesRegisters()) { |
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214 Register[] savedRegisters = frameMap.registerConfig.getAllocatableRegisters(); |
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215 savedRegisterLocations = new StackSlot[savedRegisters.length]; |
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216 for (int i = 0; i < savedRegisters.length; i++) { |
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217 PlatformKind kind = target.arch.getLargestStorableKind(savedRegisters[i].getRegisterCategory()); |
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218 assert kind != Kind.Illegal; |
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219 StackSlot spillSlot = frameMap.allocateSpillSlot(kind); |
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220 savedRegisterLocations[i] = spillSlot; |
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221 } |
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222 save = emitSaveRegisters(savedRegisters, savedRegisterLocations); |
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223 } |
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224 append(new AMD64HotSpotCRuntimeCallPrologueOp()); |
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225 } |
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226 |
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227 Variable result = super.emitCall(callTarget, callCc, info, args); |
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228 |
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229 if (isCRuntimeCall) { |
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230 append(new AMD64HotSpotCRuntimeCallEpilogueOp()); |
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231 if (stub.preservesRegisters()) { |
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232 assert !calleeSaveInfo.containsKey(currentRuntimeCallInfo); |
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233 calleeSaveInfo.put(currentRuntimeCallInfo, save); |
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234 |
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235 emitRestoreRegisters(save); |
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236 } else { |
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237 assert zapRegisters(); |
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238 } |
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239 } |
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240 |
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241 return result; |
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242 } |
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243 |
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244 protected AMD64ZapRegistersOp emitZapRegisters(Register[] zappedRegisters, Constant[] zapValues) { |
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245 AMD64ZapRegistersOp zap = new AMD64ZapRegistersOp(zappedRegisters, zapValues); |
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246 append(zap); |
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247 return zap; |
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248 } |
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249 |
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250 protected boolean zapRegisters() { |
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251 Register[] zappedRegisters = frameMap.registerConfig.getAllocatableRegisters(); |
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252 Constant[] zapValues = new Constant[zappedRegisters.length]; |
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253 for (int i = 0; i < zappedRegisters.length; i++) { |
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254 PlatformKind kind = target.arch.getLargestStorableKind(zappedRegisters[i].getRegisterCategory()); |
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255 assert kind != Kind.Illegal; |
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256 zapValues[i] = zapValueForKind(kind); |
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257 } |
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258 calleeSaveInfo.put(currentRuntimeCallInfo, emitZapRegisters(zappedRegisters, zapValues)); |
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259 return true; |
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260 } |
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261 |
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262 @Override |
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263 public void visitSafepointNode(SafepointNode i) { |
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Introduce DeoptimizingNode interface
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264 LIRFrameState info = state(i); |
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265 append(new AMD64SafepointOp(info, runtime().config, this)); |
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266 } |
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267 |
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268 @SuppressWarnings("hiding") |
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269 @Override |
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270 public void visitDirectCompareAndSwap(DirectCompareAndSwapNode x) { |
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271 Kind kind = x.newValue().kind(); |
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272 assert kind == x.expectedValue().kind(); |
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273 |
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274 Value expected = loadNonConst(operand(x.expectedValue())); |
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275 Variable newVal = load(operand(x.newValue())); |
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276 |
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277 int disp = 0; |
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278 AMD64AddressValue address; |
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279 Value index = operand(x.offset()); |
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280 if (ValueUtil.isConstant(index) && NumUtil.isInt(ValueUtil.asConstant(index).asLong() + disp)) { |
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281 assert !runtime.needsDataPatch(asConstant(index)); |
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282 disp += (int) ValueUtil.asConstant(index).asLong(); |
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283 address = new AMD64AddressValue(kind, load(operand(x.object())), disp); |
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284 } else { |
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285 address = new AMD64AddressValue(kind, load(operand(x.object())), load(index), Scale.Times1, disp); |
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286 } |
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287 |
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|
288 RegisterValue rax = AMD64.rax.asValue(kind); |
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289 emitMove(rax, expected); |
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290 append(new CompareAndSwapOp(rax, address, rax, newVal)); |
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291 |
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|
292 Variable result = newVariable(x.kind()); |
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|
293 emitMove(result, rax); |
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294 setResult(x, result); |
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295 } |
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296 |
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297 @Override |
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298 public void emitTailcall(Value[] args, Value address) { |
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299 append(new AMD64TailcallOp(args, address)); |
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300 } |
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301 |
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302 @Override |
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|
303 protected void emitDirectCall(DirectCallTargetNode callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState callState) { |
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|
304 InvokeKind invokeKind = ((HotSpotDirectCallTargetNode) callTarget).invokeKind(); |
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305 if (invokeKind == InvokeKind.Interface || invokeKind == InvokeKind.Virtual) { |
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306 append(new AMD64HotspotDirectVirtualCallOp(callTarget.target(), result, parameters, temps, callState, invokeKind)); |
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|
307 } else { |
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|
308 assert invokeKind == InvokeKind.Static || invokeKind == InvokeKind.Special; |
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|
309 HotSpotResolvedJavaMethod resolvedMethod = (HotSpotResolvedJavaMethod) callTarget.target(); |
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Additional assertions to guard against calls to abstract methods.
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310 assert !Modifier.isAbstract(resolvedMethod.getModifiers()) : "Cannot make direct call to abstract method."; |
8303
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|
311 Constant metaspaceMethod = resolvedMethod.getMetaspaceMethodConstant(); |
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|
312 append(new AMD64HotspotDirectStaticCallOp(callTarget.target(), result, parameters, temps, callState, invokeKind, metaspaceMethod)); |
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313 } |
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314 } |
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315 |
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|
316 @Override |
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|
317 protected void emitIndirectCall(IndirectCallTargetNode callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState callState) { |
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1342574c4f7d
Move targets can only be AllocatableValues.
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318 AllocatableValue metaspaceMethod = AMD64.rbx.asValue(); |
8303
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319 emitMove(metaspaceMethod, operand(((HotSpotIndirectCallTargetNode) callTarget).metaspaceMethod())); |
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320 AllocatableValue targetAddress = AMD64.rax.asValue(); |
8303
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|
321 emitMove(targetAddress, operand(callTarget.computedAddress())); |
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322 append(new AMD64IndirectCallOp(callTarget.target(), result, parameters, temps, metaspaceMethod, targetAddress, callState)); |
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323 } |
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324 |
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325 @Override |
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326 public void emitUnwind(Value exception) { |
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327 RuntimeCallTarget stub = getRuntime().lookupRuntimeCall(HotSpotBackend.UNWIND_EXCEPTION_TO_CALLER); |
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328 CallingConvention stubCc = stub.getCallingConvention(); |
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329 assert stubCc.getArgumentCount() == 2; |
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330 RegisterValue exceptionParameter = (RegisterValue) stubCc.getArgument(0); |
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331 emitMove(exceptionParameter, exception); |
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332 append(new AMD64HotSpotUnwindOp(exceptionParameter)); |
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333 } |
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334 |
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335 @Override |
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336 public void emitDeoptimize(DeoptimizationAction action, DeoptimizingNode deopting) { |
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337 append(new AMD64DeoptimizeOp(action, deopting.getDeoptimizationReason(), state(deopting))); |
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338 } |
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339 |
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340 @Override |
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341 public void emitDeoptimizeCaller(DeoptimizationAction action, DeoptimizationReason reason) { |
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342 append(new AMD64HotSpotDeoptimizeCallerOp(action, reason)); |
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343 } |
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344 |
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345 @Override |
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346 public void emitPatchReturnAddress(ValueNode address) { |
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347 append(new AMD64HotSpotPatchReturnAddressOp(load(operand(address)))); |
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348 } |
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349 |
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350 @Override |
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351 public void emitJumpToExceptionHandlerInCaller(ValueNode handlerInCallerPc, ValueNode exception, ValueNode exceptionPc) { |
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352 Variable handler = load(operand(handlerInCallerPc)); |
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353 RuntimeCallTarget stub = getRuntime().lookupRuntimeCall(EXCEPTION_HANDLER_IN_CALLER); |
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354 CallingConvention stubCc = stub.getCallingConvention(); |
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355 assert stubCc.getArgumentCount() == 2; |
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356 RegisterValue exceptionFixed = (RegisterValue) stubCc.getArgument(0); |
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357 RegisterValue exceptionPcFixed = (RegisterValue) stubCc.getArgument(1); |
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358 emitMove(exceptionFixed, operand(exception)); |
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359 emitMove(exceptionPcFixed, operand(exceptionPc)); |
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360 AMD64HotSpotJumpToExceptionHandlerInCallerOp op = new AMD64HotSpotJumpToExceptionHandlerInCallerOp(handler, exceptionFixed, exceptionPcFixed); |
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361 append(op); |
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362 } |
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363 |
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364 @Override |
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365 public void beforeRegisterAllocation() { |
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366 boolean hasDebugInfo = lir.hasDebugInfo(); |
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367 AllocatableValue savedRbp = saveRbp.finalize(hasDebugInfo); |
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368 if (hasDebugInfo) { |
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369 deoptimizationRescueSlot = frameMap.allocateSpillSlot(Kind.Long); |
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370 } |
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371 |
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372 for (AMD64HotSpotEpilogueOp op : epilogueOps) { |
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373 op.savedRbp = savedRbp; |
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374 } |
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375 } |
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376 } |