Mercurial > hg > truffle
annotate graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotLIRGenerator.java @ 15104:ed29f7ff71eb
add DeoptimizationStub
author | twisti |
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date | Mon, 14 Apr 2014 17:21:49 -1000 |
parents | 895e9ecedfe8 |
children | 96bb07a5d667 |
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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.HotSpotGraalRuntime.*; |
15104 | 28 import static com.oracle.graal.hotspot.nodes.UncommonTrapCallNode.*; |
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29 |
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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.compiler.amd64.*; |
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36 import com.oracle.graal.compiler.gen.*; |
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37 import com.oracle.graal.graph.*; |
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38 import com.oracle.graal.hotspot.*; |
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39 import com.oracle.graal.hotspot.HotSpotVMConfig.CompressEncoding; |
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40 import com.oracle.graal.hotspot.amd64.AMD64HotSpotMove.LoadCompressedPointer; |
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41 import com.oracle.graal.hotspot.amd64.AMD64HotSpotMove.StoreCompressedConstantOp; |
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42 import com.oracle.graal.hotspot.amd64.AMD64HotSpotMove.StoreCompressedPointer; |
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43 import com.oracle.graal.hotspot.meta.*; |
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44 import com.oracle.graal.hotspot.nodes.type.*; |
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45 import com.oracle.graal.hotspot.stubs.*; |
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46 import com.oracle.graal.lir.*; |
15104 | 47 import com.oracle.graal.lir.StandardOp.SaveRegistersOp; |
48 import com.oracle.graal.lir.StandardOp.*; | |
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49 import com.oracle.graal.lir.amd64.*; |
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50 import com.oracle.graal.lir.amd64.AMD64ControlFlow.CondMoveOp; |
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51 import com.oracle.graal.lir.amd64.AMD64Move.CompareAndSwapOp; |
14850 | 52 import com.oracle.graal.lir.amd64.AMD64Move.LeaDataOp; |
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53 import com.oracle.graal.lir.amd64.AMD64Move.LoadOp; |
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54 import com.oracle.graal.lir.amd64.AMD64Move.MoveFromRegOp; |
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55 import com.oracle.graal.lir.amd64.AMD64Move.MoveToRegOp; |
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56 import com.oracle.graal.lir.amd64.AMD64Move.StoreConstantOp; |
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57 import com.oracle.graal.lir.amd64.AMD64Move.StoreOp; |
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58 import com.oracle.graal.nodes.*; |
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59 import com.oracle.graal.nodes.calc.*; |
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60 import com.oracle.graal.nodes.extended.*; |
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61 |
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62 /** |
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63 * LIR generator specialized for AMD64 HotSpot. |
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64 */ |
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65 public class AMD64HotSpotLIRGenerator extends AMD64LIRGenerator implements HotSpotLIRGenerator { |
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66 |
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67 final HotSpotVMConfig config; |
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68 |
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69 protected AMD64HotSpotLIRGenerator(HotSpotProviders providers, HotSpotVMConfig config, CallingConvention cc, LIRGenerationResult lirGenRes) { |
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70 super(providers, cc, lirGenRes); |
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71 assert config.basicLockSize == 8; |
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72 this.config = config; |
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73 } |
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74 |
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75 @Override |
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76 public HotSpotProviders getProviders() { |
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77 return (HotSpotProviders) super.getProviders(); |
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78 } |
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79 |
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80 /** |
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81 * Utility for emitting the instruction to save RBP. |
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82 */ |
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83 class SaveRbp { |
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84 |
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85 final NoOp placeholder; |
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86 |
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87 /** |
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88 * The slot reserved for saving RBP. |
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89 */ |
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90 final StackSlot reservedSlot; |
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91 |
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92 public SaveRbp(NoOp placeholder) { |
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93 this.placeholder = placeholder; |
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94 this.reservedSlot = getResult().getFrameMap().allocateSpillSlot(Kind.Long); |
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95 assert reservedSlot.getRawOffset() == -16 : reservedSlot.getRawOffset(); |
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96 } |
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97 |
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98 /** |
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99 * Replaces this operation with the appropriate move for saving rbp. |
14859 | 100 * |
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101 * @param useStack specifies if rbp must be saved to the stack |
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102 */ |
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103 public AllocatableValue finalize(boolean useStack) { |
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104 AllocatableValue dst; |
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105 if (useStack) { |
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106 dst = reservedSlot; |
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107 } else { |
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108 getResult().getFrameMap().freeSpillSlot(reservedSlot); |
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109 dst = newVariable(Kind.Long); |
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110 } |
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111 |
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112 placeholder.replace(getResult().getLIR(), new MoveFromRegOp(Kind.Long, dst, rbp.asValue(Kind.Long))); |
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113 return dst; |
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114 } |
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115 } |
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116 |
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117 SaveRbp saveRbp; |
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118 |
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119 /** |
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120 * List of epilogue operations that need to restore RBP. |
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121 */ |
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122 List<AMD64HotSpotEpilogueOp> epilogueOps = new ArrayList<>(2); |
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123 |
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124 @Override |
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125 public void append(LIRInstruction op) { |
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126 super.append(op); |
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127 if (op instanceof AMD64HotSpotEpilogueOp) { |
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128 epilogueOps.add((AMD64HotSpotEpilogueOp) op); |
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129 } |
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130 } |
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131 |
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132 @Override |
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133 public StackSlot getLockSlot(int lockDepth) { |
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134 return ((HotSpotDebugInfoBuilder) getDebugInfoBuilder()).lockStack().makeLockSlot(lockDepth); |
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135 } |
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136 |
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137 private Register findPollOnReturnScratchRegister() { |
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138 RegisterConfig regConfig = getProviders().getCodeCache().getRegisterConfig(); |
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139 for (Register r : regConfig.getAllocatableRegisters(Kind.Long)) { |
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140 if (r != regConfig.getReturnRegister(Kind.Long) && r != AMD64.rbp) { |
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141 return r; |
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142 } |
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143 } |
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144 throw GraalInternalError.shouldNotReachHere(); |
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145 } |
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146 |
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147 private Register pollOnReturnScratchRegister; |
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148 |
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149 @Override |
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150 public void emitReturn(Value input) { |
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151 AllocatableValue operand = Value.ILLEGAL; |
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152 if (input != null) { |
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153 operand = resultOperandFor(input.getKind()); |
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154 emitMove(operand, input); |
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155 } |
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156 if (pollOnReturnScratchRegister == null) { |
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157 pollOnReturnScratchRegister = findPollOnReturnScratchRegister(); |
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158 } |
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159 append(new AMD64HotSpotReturnOp(operand, getStub() != null, pollOnReturnScratchRegister)); |
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160 } |
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161 |
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162 @Override |
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163 protected boolean needOnlyOopMaps() { |
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164 // Stubs only need oop maps |
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165 return ((AMD64HotSpotLIRGenerationResult) getResult()).getStub() != null; |
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166 } |
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167 |
14859 | 168 @Override |
14850 | 169 public void emitData(AllocatableValue dst, byte[] data) { |
170 append(new LeaDataOp(dst, data)); | |
171 } | |
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172 |
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173 private LIRFrameState currentRuntimeCallInfo; |
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174 |
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175 @Override |
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176 protected void emitForeignCall(ForeignCallLinkage linkage, Value result, Value[] arguments, Value[] temps, LIRFrameState info) { |
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177 currentRuntimeCallInfo = info; |
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178 super.emitForeignCall(linkage, result, arguments, temps, info); |
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179 } |
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180 |
15104 | 181 public void emitLeaveCurrentStackFrame() { |
182 append(new AMD64HotSpotLeaveCurrentStackFrameOp()); | |
183 } | |
184 | |
185 public void emitLeaveDeoptimizedStackFrame(Value frameSize, Value initialInfo) { | |
186 Variable frameSizeVariable = load(frameSize); | |
187 Variable initialInfoVariable = load(initialInfo); | |
188 append(new AMD64HotSpotLeaveDeoptimizedStackFrameOp(frameSizeVariable, initialInfoVariable)); | |
189 } | |
190 | |
191 public void emitEnterUnpackFramesStackFrame(Value framePc, Value senderSp, Value senderFp) { | |
192 Register thread = getProviders().getRegisters().getThreadRegister(); | |
193 Variable framePcVariable = load(framePc); | |
194 Variable senderSpVariable = load(senderSp); | |
195 Variable senderFpVariable = load(senderFp); | |
196 append(new AMD64HotSpotEnterUnpackFramesStackFrameOp(thread, config.threadLastJavaSpOffset(), config.threadLastJavaPcOffset(), config.threadLastJavaFpOffset(), framePcVariable, | |
197 senderSpVariable, senderFpVariable)); | |
198 } | |
199 | |
200 public void emitLeaveUnpackFramesStackFrame() { | |
201 Register thread = getProviders().getRegisters().getThreadRegister(); | |
202 append(new AMD64HotSpotLeaveUnpackFramesStackFrameOp(thread, config.threadLastJavaSpOffset(), config.threadLastJavaPcOffset(), config.threadLastJavaFpOffset())); | |
203 } | |
204 | |
205 /** | |
206 * @param savedRegisters the registers saved by this operation which may be subject to pruning | |
207 * @param savedRegisterLocations the slots to which the registers are saved | |
208 * @param supportsRemove determines if registers can be pruned | |
209 */ | |
210 protected AMD64SaveRegistersOp emitSaveRegisters(Register[] savedRegisters, StackSlot[] savedRegisterLocations, boolean supportsRemove) { | |
211 AMD64SaveRegistersOp save = new AMD64SaveRegistersOp(savedRegisters, savedRegisterLocations, supportsRemove); | |
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212 append(save); |
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213 return save; |
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214 } |
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215 |
15104 | 216 /** |
217 * Adds a node to the graph that saves all allocatable registers to the stack. | |
218 * | |
219 * @param supportsRemove determines if registers can be pruned | |
220 * @return the register save node | |
221 */ | |
222 private AMD64SaveRegistersOp emitSaveAllRegisters(Register[] savedRegisters, boolean supportsRemove) { | |
223 StackSlot[] savedRegisterLocations = new StackSlot[savedRegisters.length]; | |
224 for (int i = 0; i < savedRegisters.length; i++) { | |
225 PlatformKind kind = target().arch.getLargestStorableKind(savedRegisters[i].getRegisterCategory()); | |
226 assert kind != Kind.Illegal; | |
227 StackSlot spillSlot = getResult().getFrameMap().allocateSpillSlot(kind); | |
228 savedRegisterLocations[i] = spillSlot; | |
229 } | |
230 return emitSaveRegisters(savedRegisters, savedRegisterLocations, supportsRemove); | |
231 } | |
232 | |
233 @Override | |
234 public SaveRegistersOp emitSaveAllRegisters() { | |
235 // We are saving all registers. | |
236 // TODO Save upper half of YMM registers. | |
237 return emitSaveAllRegisters(cpuxmmRegisters, false); | |
238 } | |
239 | |
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240 protected void emitRestoreRegisters(AMD64SaveRegistersOp save) { |
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241 append(new AMD64RestoreRegistersOp(save.getSlots().clone(), save)); |
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242 } |
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243 |
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244 public Stub getStub() { |
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245 return ((AMD64HotSpotLIRGenerationResult) getResult()).getStub(); |
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246 } |
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247 |
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248 @Override |
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249 public Variable emitForeignCall(ForeignCallLinkage linkage, DeoptimizingNode info, Value... args) { |
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250 HotSpotForeignCallLinkage hotspotLinkage = (HotSpotForeignCallLinkage) linkage; |
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251 boolean destroysRegisters = hotspotLinkage.destroysRegisters(); |
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252 |
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253 AMD64SaveRegistersOp save = null; |
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254 if (destroysRegisters) { |
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255 if (getStub() != null) { |
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256 if (getStub().preservesRegisters()) { |
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257 Register[] savedRegisters = getResult().getFrameMap().registerConfig.getAllocatableRegisters(); |
15104 | 258 save = emitSaveAllRegisters(savedRegisters, true); |
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259 } |
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260 } |
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261 } |
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262 |
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263 Variable result; |
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264 DeoptimizingNode deoptInfo = null; |
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265 if (hotspotLinkage.canDeoptimize()) { |
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266 deoptInfo = info; |
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267 assert deoptInfo != null || getStub() != null; |
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268 assert hotspotLinkage.needsJavaFrameAnchor(); |
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269 } |
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270 |
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271 if (hotspotLinkage.needsJavaFrameAnchor()) { |
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272 Register thread = getProviders().getRegisters().getThreadRegister(); |
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273 append(new AMD64HotSpotCRuntimeCallPrologueOp(config.threadLastJavaSpOffset(), thread)); |
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274 result = super.emitForeignCall(hotspotLinkage, deoptInfo, args); |
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275 append(new AMD64HotSpotCRuntimeCallEpilogueOp(config.threadLastJavaSpOffset(), config.threadLastJavaFpOffset(), thread)); |
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276 } else { |
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277 result = super.emitForeignCall(hotspotLinkage, deoptInfo, args); |
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278 } |
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279 |
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280 if (destroysRegisters) { |
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281 if (getStub() != null) { |
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282 if (getStub().preservesRegisters()) { |
15104 | 283 AMD64HotSpotLIRGenerationResult generationResult = (AMD64HotSpotLIRGenerationResult) getResult(); |
284 assert !generationResult.getCalleeSaveInfo().containsKey(currentRuntimeCallInfo); | |
285 generationResult.getCalleeSaveInfo().put(currentRuntimeCallInfo, save); | |
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286 emitRestoreRegisters(save); |
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287 } else { |
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288 assert zapRegisters(); |
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289 } |
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290 } |
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291 } |
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292 |
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293 return result; |
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294 } |
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295 |
15104 | 296 public Value emitUncommonTrapCall(Value trapRequest, SaveRegistersOp saveRegisterOp) { |
297 ForeignCallLinkage linkage = getForeignCalls().lookupForeignCall(UNCOMMON_TRAP); | |
298 | |
299 Register thread = getProviders().getRegisters().getThreadRegister(); | |
300 append(new AMD64HotSpotCRuntimeCallPrologueOp(config.threadLastJavaSpOffset(), thread)); | |
301 Variable result = super.emitForeignCall(linkage, null, thread.asValue(Kind.Long), trapRequest); | |
302 append(new AMD64HotSpotCRuntimeCallEpilogueOp(config.threadLastJavaSpOffset(), config.threadLastJavaFpOffset(), thread)); | |
303 | |
304 Map<LIRFrameState, SaveRegistersOp> calleeSaveInfo = ((AMD64HotSpotLIRGenerationResult) getResult()).getCalleeSaveInfo(); | |
305 assert !calleeSaveInfo.containsKey(currentRuntimeCallInfo); | |
306 calleeSaveInfo.put(currentRuntimeCallInfo, saveRegisterOp); | |
307 | |
308 return result; | |
309 } | |
310 | |
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311 protected AMD64ZapRegistersOp emitZapRegisters(Register[] zappedRegisters, Constant[] zapValues) { |
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312 AMD64ZapRegistersOp zap = new AMD64ZapRegistersOp(zappedRegisters, zapValues); |
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313 append(zap); |
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314 return zap; |
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315 } |
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316 |
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317 protected boolean zapRegisters() { |
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318 Register[] zappedRegisters = getResult().getFrameMap().registerConfig.getAllocatableRegisters(); |
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319 Constant[] zapValues = new Constant[zappedRegisters.length]; |
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320 for (int i = 0; i < zappedRegisters.length; i++) { |
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321 PlatformKind kind = target().arch.getLargestStorableKind(zappedRegisters[i].getRegisterCategory()); |
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322 assert kind != Kind.Illegal; |
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323 zapValues[i] = zapValueForKind(kind); |
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324 } |
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325 ((AMD64HotSpotLIRGenerationResult) getResult()).getCalleeSaveInfo().put(currentRuntimeCallInfo, emitZapRegisters(zappedRegisters, zapValues)); |
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326 return true; |
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327 } |
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328 |
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329 @Override |
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330 public void emitTailcall(Value[] args, Value address) { |
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331 append(new AMD64TailcallOp(args, address)); |
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332 } |
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333 |
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334 @Override |
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335 public void emitCCall(long address, CallingConvention nativeCallingConvention, Value[] args, int numberOfFloatingPointArguments) { |
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336 Value[] argLocations = new Value[args.length]; |
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337 getResult().getFrameMap().callsMethod(nativeCallingConvention); |
13839 | 338 // TODO(mg): in case a native function uses floating point varargs, the ABI requires that |
339 // RAX contains the length of the varargs | |
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340 AllocatableValue numberOfFloatingPointArgumentsRegister = AMD64.rax.asValue(); |
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341 emitMove(numberOfFloatingPointArgumentsRegister, Constant.forInt(numberOfFloatingPointArguments)); |
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342 for (int i = 0; i < args.length; i++) { |
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343 Value arg = args[i]; |
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344 AllocatableValue loc = nativeCallingConvention.getArgument(i); |
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345 emitMove(loc, arg); |
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346 argLocations[i] = loc; |
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347 } |
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348 Value ptr = emitMove(Constant.forLong(address)); |
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349 append(new AMD64CCall(nativeCallingConvention.getReturn(), ptr, numberOfFloatingPointArgumentsRegister, argLocations)); |
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350 } |
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351 |
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352 @Override |
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353 public void emitUnwind(Value exception) { |
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354 ForeignCallLinkage linkage = getForeignCalls().lookupForeignCall(HotSpotBackend.UNWIND_EXCEPTION_TO_CALLER); |
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355 CallingConvention outgoingCc = linkage.getOutgoingCallingConvention(); |
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356 assert outgoingCc.getArgumentCount() == 2; |
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357 RegisterValue exceptionParameter = (RegisterValue) outgoingCc.getArgument(0); |
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358 emitMove(exceptionParameter, exception); |
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359 append(new AMD64HotSpotUnwindOp(exceptionParameter)); |
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360 } |
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361 |
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362 private void moveDeoptValuesToThread(Value actionAndReason, Value speculation) { |
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363 moveValueToThread(actionAndReason, runtime().getConfig().pendingDeoptimizationOffset); |
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364 moveValueToThread(speculation, runtime().getConfig().pendingFailedSpeculationOffset); |
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365 } |
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366 |
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367 private void moveValueToThread(Value v, int offset) { |
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368 Kind wordKind = getProviders().getCodeCache().getTarget().wordKind; |
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369 RegisterValue thread = getProviders().getRegisters().getThreadRegister().asValue(wordKind); |
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370 AMD64AddressValue address = new AMD64AddressValue(v.getKind(), thread, offset); |
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371 emitStore(v.getKind(), address, v, null); |
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372 } |
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373 |
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374 @Override |
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375 public void emitDeoptimize(Value actionAndReason, Value speculation, DeoptimizingNode deopting) { |
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376 moveDeoptValuesToThread(actionAndReason, speculation); |
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377 append(new AMD64DeoptimizeOp(state(deopting))); |
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378 } |
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379 |
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380 @Override |
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381 public void emitDeoptimizeCaller(DeoptimizationAction action, DeoptimizationReason reason) { |
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382 moveDeoptValuesToThread(getMetaAccess().encodeDeoptActionAndReason(action, reason, 0), Constant.NULL_OBJECT); |
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383 append(new AMD64HotSpotDeoptimizeCallerOp()); |
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384 } |
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385 |
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386 @Override |
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387 public void beforeRegisterAllocation() { |
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388 super.beforeRegisterAllocation(); |
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389 boolean hasDebugInfo = getResult().getLIR().hasDebugInfo(); |
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390 AllocatableValue savedRbp = saveRbp.finalize(hasDebugInfo); |
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391 if (hasDebugInfo) { |
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392 ((AMD64HotSpotLIRGenerationResult) getResult()).setDeoptimizationRescueSlot(getResult().getFrameMap().allocateSpillSlot(Kind.Long)); |
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393 } |
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394 |
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395 for (AMD64HotSpotEpilogueOp op : epilogueOps) { |
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396 op.savedRbp = savedRbp; |
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397 } |
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398 } |
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399 |
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400 /** |
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401 * Returns whether or not the input access should be (de)compressed. |
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402 */ |
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403 private boolean isCompressedOperation(PlatformKind kind, Access access) { |
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404 return access != null && access.isCompressible() && ((kind == Kind.Long && config.useCompressedClassPointers) || (kind == Kind.Object && config.useCompressedOops)); |
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405 } |
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406 |
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407 /** |
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408 * @return a compressed version of the incoming constant |
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409 */ |
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410 protected static Constant compress(Constant c, CompressEncoding encoding) { |
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411 if (c.getKind() == Kind.Long) { |
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412 int compressedValue = (int) (((c.asLong() - encoding.base) >> encoding.shift) & 0xffffffffL); |
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413 if (c instanceof HotSpotMetaspaceConstant) { |
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414 return HotSpotMetaspaceConstant.forMetaspaceObject(Kind.Int, compressedValue, HotSpotMetaspaceConstant.getMetaspaceObject(c)); |
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415 } else { |
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416 return Constant.forIntegerKind(Kind.Int, compressedValue); |
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417 } |
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418 } else { |
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419 throw GraalInternalError.shouldNotReachHere(); |
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420 } |
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421 } |
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422 |
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423 private static Kind getMemoryKind(PlatformKind kind) { |
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424 if (kind == NarrowOopStamp.NarrowOop) { |
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425 return Kind.Int; |
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426 } else { |
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427 return (Kind) kind; |
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428 } |
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429 } |
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430 |
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431 private static PlatformKind toStackKind(PlatformKind kind) { |
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432 if (kind instanceof Kind) { |
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433 return ((Kind) kind).getStackKind(); |
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434 } else { |
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435 return kind; |
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436 } |
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437 } |
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438 |
15104 | 439 public void emitPushInterpreterFrame(Value frameSize, Value framePc, Value senderSp, Value initialInfo) { |
440 Variable frameSizeVariable = load(frameSize); | |
441 Variable framePcVariable = load(framePc); | |
442 Variable senderSpVariable = load(senderSp); | |
443 Variable initialInfoVariable = load(initialInfo); | |
444 append(new AMD64HotSpotPushInterpreterFrameOp(frameSizeVariable, framePcVariable, senderSpVariable, initialInfoVariable)); | |
445 } | |
446 | |
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447 @Override |
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448 public Variable emitLoad(PlatformKind kind, Value address, Access access) { |
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449 AMD64AddressValue loadAddress = asAddressValue(address); |
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450 Variable result = newVariable(toStackKind(kind)); |
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451 LIRFrameState state = null; |
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452 if (access instanceof DeoptimizingNode) { |
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453 state = state((DeoptimizingNode) access); |
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454 } |
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455 /** |
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456 * Currently, the (de)compression of pointers applies conditionally to some objects (oops, |
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457 * kind==Object) and some addresses (klass pointers, kind==Long). Initially, the input |
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458 * operation is checked to discover if it has been tagged as a potential "compression" |
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459 * candidate. Consequently, depending on the appropriate kind, the specific (de)compression |
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460 * functions are being called. |
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461 */ |
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462 if (isCompressedOperation(kind, access)) { |
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463 if (kind == Kind.Object) { |
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464 append(new LoadCompressedPointer(Kind.Object, result, getProviders().getRegisters().getHeapBaseRegister().asValue(), loadAddress, state, config.getOopEncoding())); |
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465 } else if (kind == Kind.Long) { |
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466 Variable scratch = config.getKlassEncoding().base != 0 ? newVariable(Kind.Long) : null; |
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467 append(new LoadCompressedPointer(Kind.Long, result, scratch, loadAddress, state, config.getKlassEncoding())); |
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468 } else { |
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469 throw GraalInternalError.shouldNotReachHere("can't handle: " + access); |
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470 } |
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471 } else { |
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472 append(new LoadOp(getMemoryKind(kind), result, loadAddress, state)); |
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473 } |
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474 return result; |
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475 } |
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476 |
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477 @Override |
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478 public void emitStore(PlatformKind kind, Value address, Value inputVal, Access access) { |
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479 AMD64AddressValue storeAddress = asAddressValue(address); |
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480 LIRFrameState state = null; |
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481 if (access instanceof DeoptimizingNode) { |
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482 state = state((DeoptimizingNode) access); |
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483 } |
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484 boolean isCompressed = isCompressedOperation(kind, access); |
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485 if (isConstant(inputVal)) { |
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486 Constant c = asConstant(inputVal); |
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487 if (canStoreConstant(c, isCompressed)) { |
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488 if (isCompressed) { |
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489 if (c.getKind() == Kind.Object) { |
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490 append(new StoreCompressedConstantOp(Kind.Object, storeAddress, c, state)); |
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491 } else if (c.getKind() == Kind.Long) { |
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492 // It's always a good idea to directly store compressed constants since they |
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493 // have to be materialized as 64 bits encoded otherwise. |
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494 Constant value = compress(c, config.getKlassEncoding()); |
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495 append(new StoreCompressedConstantOp(Kind.Long, storeAddress, value, state)); |
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496 } else { |
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497 throw GraalInternalError.shouldNotReachHere("can't handle: " + access); |
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498 } |
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499 return; |
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500 } else { |
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501 append(new StoreConstantOp(getMemoryKind(kind), storeAddress, c, state)); |
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502 return; |
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503 } |
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504 } |
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505 } |
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Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
9768
diff
changeset
|
506 Variable input = load(inputVal); |
13520
fb7b39f07232
Embed compressed constants when possible and use more efficient patterns for encoding
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
13313
diff
changeset
|
507 if (isCompressed) { |
fb7b39f07232
Embed compressed constants when possible and use more efficient patterns for encoding
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
13313
diff
changeset
|
508 if (kind == Kind.Object) { |
10747
3811d04d933e
Do not re-compress oops that are already compressed.
Roland Schatz <roland.schatz@oracle.com>
parents:
10731
diff
changeset
|
509 if (input.getKind() == Kind.Object) { |
3811d04d933e
Do not re-compress oops that are already compressed.
Roland Schatz <roland.schatz@oracle.com>
parents:
10731
diff
changeset
|
510 Variable scratch = newVariable(Kind.Long); |
12429
5124eeec1a7b
split HotSpotRuntime into separate provider implementations
Doug Simon <doug.simon@oracle.com>
parents:
12363
diff
changeset
|
511 Register heapBaseReg = getProviders().getRegisters().getHeapBaseRegister(); |
14945
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
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diff
changeset
|
512 append(new StoreCompressedPointer(Kind.Object, storeAddress, input, scratch, state, config.getOopEncoding(), heapBaseReg)); |
10747
3811d04d933e
Do not re-compress oops that are already compressed.
Roland Schatz <roland.schatz@oracle.com>
parents:
10731
diff
changeset
|
513 } else { |
3811d04d933e
Do not re-compress oops that are already compressed.
Roland Schatz <roland.schatz@oracle.com>
parents:
10731
diff
changeset
|
514 // the input oop is already compressed |
3811d04d933e
Do not re-compress oops that are already compressed.
Roland Schatz <roland.schatz@oracle.com>
parents:
10731
diff
changeset
|
515 append(new StoreOp(input.getKind(), storeAddress, input, state)); |
3811d04d933e
Do not re-compress oops that are already compressed.
Roland Schatz <roland.schatz@oracle.com>
parents:
10731
diff
changeset
|
516 } |
13520
fb7b39f07232
Embed compressed constants when possible and use more efficient patterns for encoding
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
13313
diff
changeset
|
517 } else if (kind == Kind.Long) { |
10731
40f6bda3f91d
Add compressed klass pointers support in LIR
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
10718
diff
changeset
|
518 Variable scratch = newVariable(Kind.Long); |
12429
5124eeec1a7b
split HotSpotRuntime into separate provider implementations
Doug Simon <doug.simon@oracle.com>
parents:
12363
diff
changeset
|
519 Register heapBaseReg = getProviders().getRegisters().getHeapBaseRegister(); |
14945
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
14943
diff
changeset
|
520 append(new StoreCompressedPointer(Kind.Long, storeAddress, input, scratch, state, config.getKlassEncoding(), heapBaseReg)); |
10610
1db97e3de11c
Do not re-compress oops that are already compressed.
Roland Schatz <roland.schatz@oracle.com>
parents:
9980
diff
changeset
|
521 } else { |
14945
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
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changeset
|
522 append(new StoreOp(getMemoryKind(kind), storeAddress, input, state)); |
10610
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Do not re-compress oops that are already compressed.
Roland Schatz <roland.schatz@oracle.com>
parents:
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diff
changeset
|
523 } |
9885
ed86945795d5
Add Compressed Oops support in LIR
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
9768
diff
changeset
|
524 } else { |
14945
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
14943
diff
changeset
|
525 append(new StoreOp(getMemoryKind(kind), storeAddress, input, state)); |
9885
ed86945795d5
Add Compressed Oops support in LIR
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
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diff
changeset
|
526 } |
ed86945795d5
Add Compressed Oops support in LIR
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
9768
diff
changeset
|
527 } |
ed86945795d5
Add Compressed Oops support in LIR
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
9768
diff
changeset
|
528 |
14943
e5a55d280f24
Floating nodes for compressing and uncompressing pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
14921
diff
changeset
|
529 @Override |
15058
895e9ecedfe8
Fix code generation for compressed metaspace pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15024
diff
changeset
|
530 public Value emitCompress(Value pointer, CompressEncoding encoding, boolean nonNull) { |
15023
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
531 if (pointer.getPlatformKind() == Kind.Object) { |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
532 Variable result = newVariable(NarrowOopStamp.NarrowOop); |
15058
895e9ecedfe8
Fix code generation for compressed metaspace pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15024
diff
changeset
|
533 append(new AMD64HotSpotMove.CompressPointer(result, asAllocatable(pointer), getProviders().getRegisters().getHeapBaseRegister().asValue(), encoding, nonNull)); |
15023
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
534 return result; |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
535 } else { |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
536 assert pointer.getPlatformKind() == Kind.Long; |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
537 Variable result = newVariable(Kind.Int); |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
538 AllocatableValue base = Value.ILLEGAL; |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
539 if (encoding.base != 0) { |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
540 base = newVariable(Kind.Long); |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
541 append(new AMD64Move.MoveToRegOp(Kind.Long, base, Constant.forLong(encoding.base))); |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
542 } |
15058
895e9ecedfe8
Fix code generation for compressed metaspace pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15024
diff
changeset
|
543 append(new AMD64HotSpotMove.CompressPointer(result, asAllocatable(pointer), base, encoding, nonNull)); |
15023
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
544 return result; |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
545 } |
14943
e5a55d280f24
Floating nodes for compressing and uncompressing pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
14921
diff
changeset
|
546 } |
e5a55d280f24
Floating nodes for compressing and uncompressing pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
14921
diff
changeset
|
547 |
e5a55d280f24
Floating nodes for compressing and uncompressing pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
14921
diff
changeset
|
548 @Override |
15058
895e9ecedfe8
Fix code generation for compressed metaspace pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15024
diff
changeset
|
549 public Value emitUncompress(Value pointer, CompressEncoding encoding, boolean nonNull) { |
15023
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
550 if (pointer.getPlatformKind() == NarrowOopStamp.NarrowOop) { |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
551 Variable result = newVariable(Kind.Object); |
15058
895e9ecedfe8
Fix code generation for compressed metaspace pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15024
diff
changeset
|
552 append(new AMD64HotSpotMove.UncompressPointer(result, asAllocatable(pointer), getProviders().getRegisters().getHeapBaseRegister().asValue(), encoding, nonNull)); |
15023
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
553 return result; |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
554 } else { |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
555 assert pointer.getPlatformKind() == Kind.Int; |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
556 Variable result = newVariable(Kind.Long); |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
557 AllocatableValue base = Value.ILLEGAL; |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
558 if (encoding.base != 0) { |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
559 base = newVariable(Kind.Long); |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
560 append(new AMD64Move.MoveToRegOp(Kind.Long, base, Constant.forLong(encoding.base))); |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
561 } |
15058
895e9ecedfe8
Fix code generation for compressed metaspace pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15024
diff
changeset
|
562 append(new AMD64HotSpotMove.UncompressPointer(result, asAllocatable(pointer), base, encoding, nonNull)); |
15023
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
563 return result; |
652564fe42d5
Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
15018
diff
changeset
|
564 } |
14943
e5a55d280f24
Floating nodes for compressing and uncompressing pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
14921
diff
changeset
|
565 } |
e5a55d280f24
Floating nodes for compressing and uncompressing pointers.
Roland Schatz <roland.schatz@oracle.com>
parents:
14921
diff
changeset
|
566 |
14945
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
14943
diff
changeset
|
567 @Override |
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
14943
diff
changeset
|
568 protected AMD64LIRInstruction createMove(AllocatableValue dst, Value src) { |
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
14943
diff
changeset
|
569 if (dst.getPlatformKind() == NarrowOopStamp.NarrowOop) { |
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
14943
diff
changeset
|
570 if (isRegister(src) || isStackSlot(dst)) { |
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
14943
diff
changeset
|
571 return new MoveFromRegOp(Kind.Int, dst, src); |
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
14943
diff
changeset
|
572 } else { |
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
14943
diff
changeset
|
573 return new MoveToRegOp(Kind.Int, dst, src); |
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
14943
diff
changeset
|
574 } |
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
14943
diff
changeset
|
575 } else { |
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
14943
diff
changeset
|
576 return super.createMove(dst, src); |
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
14943
diff
changeset
|
577 } |
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
14943
diff
changeset
|
578 } |
b14cb2d9253d
Make compression and uncompression explicit in the high level graph.
Roland Schatz <roland.schatz@oracle.com>
parents:
14943
diff
changeset
|
579 |
15024
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
580 @Override |
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
581 public Value emitCompareAndSwap(Value address, Value expectedValue, Value newValue, Value trueValue, Value falseValue) { |
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
582 PlatformKind kind = newValue.getPlatformKind(); |
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
583 assert kind == expectedValue.getPlatformKind(); |
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
584 Kind memKind = getMemoryKind(kind); |
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
585 |
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
586 AMD64AddressValue addressValue = asAddressValue(address); |
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
587 RegisterValue raxRes = AMD64.rax.asValue(kind); |
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
588 emitMove(raxRes, expectedValue); |
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
589 append(new CompareAndSwapOp(memKind, raxRes, addressValue, raxRes, asAllocatable(newValue))); |
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
590 |
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
591 assert trueValue.getPlatformKind() == falseValue.getPlatformKind(); |
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
592 Variable result = newVariable(trueValue.getPlatformKind()); |
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
593 append(new CondMoveOp(result, Condition.EQ, asAllocatable(trueValue), falseValue)); |
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
594 return result; |
2ee777221036
Use high level CompressionNode in lowering of CompareAndSwapNode.
Roland Schatz <roland.schatz@oracle.com>
parents:
15023
diff
changeset
|
595 } |
8303
bb9fba66b6ef
refactored HotSpotAMD64LIRGenerator into its own file
Doug Simon <doug.simon@oracle.com>
parents:
diff
changeset
|
596 } |