Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/target/amd64/HotSpotAMD64Backend.java @ 6462:b3f5dc099f9d
removed XIR
author | Doug Simon <doug.simon@oracle.com> |
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date | Sun, 30 Sep 2012 13:21:20 +0200 |
parents | 258d3e0b5a65 |
children | b1010f7bc0bf |
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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.target.amd64; |
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24 |
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25 import static com.oracle.graal.api.code.CallingConvention.Type.*; |
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26 import static com.oracle.graal.api.code.ValueUtil.*; |
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27 import static com.oracle.max.asm.target.amd64.AMD64.*; |
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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.api.code.*; |
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33 import com.oracle.graal.api.meta.*; |
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34 import com.oracle.graal.compiler.*; |
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35 import com.oracle.graal.compiler.gen.*; |
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36 import com.oracle.graal.compiler.target.*; |
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37 import com.oracle.graal.compiler.target.amd64.*; |
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38 import com.oracle.graal.graph.*; |
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39 import com.oracle.graal.hotspot.*; |
6462 | 40 import com.oracle.graal.hotspot.bridge.*; |
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41 import com.oracle.graal.hotspot.counters.*; |
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42 import com.oracle.graal.hotspot.meta.*; |
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43 import com.oracle.graal.hotspot.nodes.*; |
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44 import com.oracle.graal.lir.*; |
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45 import com.oracle.graal.lir.amd64.*; |
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46 import com.oracle.graal.lir.asm.*; |
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47 import com.oracle.graal.nodes.*; |
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48 import com.oracle.graal.nodes.java.*; |
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49 import com.oracle.max.asm.*; |
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50 import com.oracle.max.asm.target.amd64.*; |
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51 import com.oracle.max.asm.target.amd64.AMD64Assembler.ConditionFlag; |
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52 |
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53 /** |
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54 * HotSpot AMD64 specific backend. |
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55 */ |
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56 public class HotSpotAMD64Backend extends Backend { |
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57 |
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58 public HotSpotAMD64Backend(CodeCacheProvider runtime, TargetDescription target) { |
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59 super(runtime, target); |
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60 } |
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61 |
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62 @Override |
6462 | 63 public LIRGenerator newLIRGenerator(Graph graph, FrameMap frameMap, ResolvedJavaMethod method, LIR lir) { |
64 return new HotSpotAMD64LIRGenerator(graph, runtime, target, frameMap, method, lir); | |
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65 } |
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66 |
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67 static final class HotSpotAMD64LIRGenerator extends AMD64LIRGenerator { |
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68 |
6462 | 69 private HotSpotAMD64LIRGenerator(Graph graph, CodeCacheProvider runtime, TargetDescription target, FrameMap frameMap, ResolvedJavaMethod method, LIR lir) { |
70 super(graph, runtime, target, frameMap, method, lir); | |
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71 } |
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72 |
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73 @Override |
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74 public void visitSafepointNode(SafepointNode i) { |
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75 LIRFrameState info = state(); |
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76 append(new AMD64SafepointOp(info, ((HotSpotRuntime) runtime).config)); |
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77 } |
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78 |
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79 @Override |
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80 public void visitBreakpointNode(BreakpointNode i) { |
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81 Kind[] sig = new Kind[i.arguments.size()]; |
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82 int pos = 0; |
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83 for (ValueNode arg : i.arguments) { |
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84 sig[pos++] = arg.kind(); |
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85 } |
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86 |
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87 CallingConvention cc = frameMap.registerConfig.getCallingConvention(CallingConvention.Type.JavaCall, sig, target(), false); |
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88 List<Value> argList = visitInvokeArguments(cc, i.arguments); |
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89 Value[] parameters = argList.toArray(new Value[argList.size()]); |
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90 append(new AMD64BreakpointOp(parameters)); |
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91 } |
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92 |
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93 @Override |
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94 public void visitExceptionObject(ExceptionObjectNode x) { |
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95 HotSpotVMConfig config = ((HotSpotRuntime) runtime).config; |
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96 RegisterValue thread = config.threadRegister.asValue(); |
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97 Address exceptionAddress = new Address(Kind.Object, thread, config.threadExceptionOopOffset); |
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98 Address pcAddress = new Address(Kind.Long, thread, config.threadExceptionPcOffset); |
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99 Value exception = emitLoad(exceptionAddress, false); |
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100 emitStore(exceptionAddress, Constant.NULL_OBJECT, false); |
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101 emitStore(pcAddress, Constant.LONG_0, false); |
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102 setResult(x, exception); |
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103 } |
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104 |
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105 @Override |
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106 protected void emitPrologue() { |
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107 super.emitPrologue(); |
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108 MethodEntryCounters.emitCounter(this, method); |
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109 } |
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110 |
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111 @Override |
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112 protected void emitDirectCall(DirectCallTargetNode callTarget, Value result, Value[] parameters, LIRFrameState callState) { |
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113 append(new AMD64DirectCallOp(callTarget.target(), result, parameters, callState, ((HotSpotDirectCallTargetNode) callTarget).invokeKind(), lir)); |
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114 } |
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115 |
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116 @Override |
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117 protected void emitIndirectCall(IndirectCallTargetNode callTarget, Value result, Value[] parameters, LIRFrameState callState) { |
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118 Value methodOop = AMD64.rbx.asValue(); |
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119 emitMove(operand(((HotSpotIndirectCallTargetNode) callTarget).methodOop()), methodOop); |
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120 Value targetAddress = AMD64.rax.asValue(); |
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121 emitMove(operand(callTarget.computedAddress()), targetAddress); |
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122 append(new AMD64IndirectCallOp(callTarget.target(), result, parameters, methodOop, targetAddress, callState)); |
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123 } |
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124 } |
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125 |
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126 class HotSpotFrameContext implements FrameContext { |
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127 |
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128 @Override |
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129 public void enter(TargetMethodAssembler tasm) { |
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130 FrameMap frameMap = tasm.frameMap; |
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131 int frameSize = frameMap.frameSize(); |
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132 |
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133 AMD64MacroAssembler asm = (AMD64MacroAssembler) tasm.asm; |
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134 emitStackOverflowCheck(tasm, false); |
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135 asm.push(rbp); |
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136 asm.movq(rbp, rsp); |
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137 asm.decrementq(rsp, frameSize - 8); // account for the push of RBP above |
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138 if (GraalOptions.ZapStackOnMethodEntry) { |
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139 final int intSize = 4; |
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140 for (int i = 0; i < frameSize / intSize; ++i) { |
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141 asm.movl(new Address(Kind.Int, rsp.asValue(), i * intSize), 0xC1C1C1C1); |
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142 } |
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143 } |
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144 CalleeSaveLayout csl = frameMap.registerConfig.getCalleeSaveLayout(); |
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145 if (csl != null && csl.size != 0) { |
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146 int frameToCSA = frameMap.offsetToCalleeSaveArea(); |
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147 assert frameToCSA >= 0; |
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148 asm.save(csl, frameToCSA); |
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149 } |
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150 } |
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151 |
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152 @Override |
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153 public void leave(TargetMethodAssembler tasm) { |
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154 int frameSize = tasm.frameMap.frameSize(); |
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155 AMD64MacroAssembler asm = (AMD64MacroAssembler) tasm.asm; |
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156 CalleeSaveLayout csl = tasm.frameMap.registerConfig.getCalleeSaveLayout(); |
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157 RegisterConfig regConfig = tasm.frameMap.registerConfig; |
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158 |
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159 if (csl != null && csl.size != 0) { |
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160 tasm.targetMethod.setRegisterRestoreEpilogueOffset(asm.codeBuffer.position()); |
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161 // saved all registers, restore all registers |
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162 int frameToCSA = tasm.frameMap.offsetToCalleeSaveArea(); |
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163 asm.restore(csl, frameToCSA); |
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164 } |
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165 |
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166 asm.incrementq(rsp, frameSize - 8); // account for the pop of RBP below |
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167 asm.pop(rbp); |
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168 |
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169 if (GraalOptions.GenSafepoints) { |
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170 HotSpotVMConfig config = ((HotSpotRuntime) runtime).config; |
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171 |
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172 // If at the return point, then the frame has already been popped |
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173 // so deoptimization cannot be performed here. The HotSpot runtime |
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174 // detects this case - see the definition of frame::should_be_deoptimized() |
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175 |
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176 Register scratch = regConfig.getScratchRegister(); |
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177 if (config.isPollingPageFar) { |
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178 asm.movq(scratch, config.safepointPollingAddress); |
6462 | 179 tasm.recordMark(Marks.MARK_POLL_RETURN_FAR); |
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180 asm.movq(scratch, new Address(tasm.target.wordKind, scratch.asValue())); |
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181 } else { |
6462 | 182 tasm.recordMark(Marks.MARK_POLL_RETURN_NEAR); |
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183 asm.movq(scratch, new Address(tasm.target.wordKind, rip.asValue())); |
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184 } |
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185 } |
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186 } |
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187 } |
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188 |
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189 @Override |
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190 public TargetMethodAssembler newAssembler(FrameMap frameMap, LIR lir) { |
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191 // Omit the frame if the method: |
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192 // - has no spill slots or other slots allocated during register allocation |
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193 // - has no callee-saved registers |
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194 // - has no incoming arguments passed on the stack |
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195 // - has no instructions with debug info |
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196 boolean canOmitFrame = |
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197 frameMap.frameSize() == frameMap.initialFrameSize && |
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198 frameMap.registerConfig.getCalleeSaveLayout().registers.length == 0 && |
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199 !lir.hasArgInCallerFrame() && |
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200 !lir.hasDebugInfo(); |
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201 |
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202 AbstractAssembler masm = new AMD64MacroAssembler(target, frameMap.registerConfig); |
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203 HotSpotFrameContext frameContext = canOmitFrame ? null : new HotSpotFrameContext(); |
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204 TargetMethodAssembler tasm = new TargetMethodAssembler(target, runtime, frameMap, masm, frameContext, lir.stubs); |
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205 tasm.setFrameSize(frameMap.frameSize()); |
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206 tasm.targetMethod.setCustomStackAreaOffset(frameMap.offsetToCustomArea()); |
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207 return tasm; |
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208 } |
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209 |
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210 @Override |
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211 public void emitCode(TargetMethodAssembler tasm, ResolvedJavaMethod method, LIR lir) { |
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212 AMD64MacroAssembler asm = (AMD64MacroAssembler) tasm.asm; |
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213 FrameMap frameMap = tasm.frameMap; |
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214 RegisterConfig regConfig = frameMap.registerConfig; |
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215 HotSpotVMConfig config = ((HotSpotRuntime) runtime).config; |
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216 Label unverifiedStub = new Label(); |
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217 |
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218 // Emit the prefix |
6462 | 219 tasm.recordMark(Marks.MARK_OSR_ENTRY); |
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220 |
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221 boolean isStatic = Modifier.isStatic(method.accessFlags()); |
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222 if (!isStatic) { |
6462 | 223 tasm.recordMark(Marks.MARK_UNVERIFIED_ENTRY); |
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224 CallingConvention cc = regConfig.getCallingConvention(JavaCallee, new Kind[] {Kind.Object}, target, false); |
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225 Register inlineCacheKlass = rax; // see definition of IC_Klass in c1_LIRAssembler_x86.cpp |
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226 Register receiver = asRegister(cc.locations[0]); |
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227 Address src = new Address(target.wordKind, receiver.asValue(), config.hubOffset); |
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228 |
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229 asm.cmpq(inlineCacheKlass, src); |
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230 asm.jcc(ConditionFlag.notEqual, unverifiedStub); |
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231 } |
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232 |
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233 asm.align(config.codeEntryAlignment); |
6462 | 234 tasm.recordMark(Marks.MARK_VERIFIED_ENTRY); |
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235 |
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236 // Emit code for the LIR |
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237 lir.emitCode(tasm); |
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238 |
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239 boolean frameOmitted = tasm.frameContext == null; |
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240 if (!frameOmitted) { |
6462 | 241 tasm.recordMark(Marks.MARK_EXCEPTION_HANDLER_ENTRY); |
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242 AMD64Call.directCall(tasm, asm, config.handleExceptionStub, null); |
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243 AMD64Call.shouldNotReachHere(tasm, asm); |
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244 |
6462 | 245 tasm.recordMark(Marks.MARK_DEOPT_HANDLER_ENTRY); |
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246 AMD64Call.directCall(tasm, asm, config.handleDeoptStub, null); |
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247 AMD64Call.shouldNotReachHere(tasm, asm); |
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248 } else { |
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249 // No need to emit the stubs for entries back into the method since |
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250 // it has no calls that can cause such "return" entries |
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251 assert !frameMap.accessesCallerFrame(); |
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252 } |
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253 |
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254 if (!isStatic) { |
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255 asm.bind(unverifiedStub); |
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256 AMD64Call.directJmp(tasm, asm, config.inlineCacheMissStub); |
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257 } |
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258 |
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259 for (int i = 0; i < GraalOptions.MethodEndBreakpointGuards; ++i) { |
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260 asm.int3(); |
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261 } |
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262 } |
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263 } |