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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/StubForeignCallNode.java @ 11787:4fc75b6ca3dd

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Introduce NodeWithState for nodes that hold some VirtualState. Use this interface in the required special cases (Scheduling and PEA)
author Gilles Duboscq <duboscq@ssw.jku.at>
date Wed, 25 Sep 2013 12:08:04 +0200
parents ae6f0c381087
children 70f43f67cdcb
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1 /*
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2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.hotspot.nodes;
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24
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25 import com.oracle.graal.api.code.*;
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26 import com.oracle.graal.api.meta.*;
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27 import com.oracle.graal.graph.*;
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28 import com.oracle.graal.nodes.*;
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29 import com.oracle.graal.nodes.extended.*;
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30 import com.oracle.graal.nodes.spi.*;
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31 import com.oracle.graal.nodes.type.*;
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32
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33 /**
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34 * Node for a {@linkplain ForeignCallDescriptor foreign} call from within a stub.
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35 */
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36 @NodeInfo(nameTemplate = "StubForeignCall#{p#descriptor/s}")
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37 public class StubForeignCallNode extends FixedWithNextNode implements DeoptimizingNode, LIRLowerable, MemoryCheckpoint.Multi {
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38
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39 @Input private final NodeInputList<ValueNode> arguments;
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40 private final MetaAccessProvider runtime;
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41 @Input private FrameState deoptState;
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42
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43 private final ForeignCallDescriptor descriptor;
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44
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45 public StubForeignCallNode(MetaAccessProvider runtime, ForeignCallDescriptor descriptor, ValueNode... arguments) {
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46 super(StampFactory.forKind(Kind.fromJavaClass(descriptor.getResultType())));
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47 this.arguments = new NodeInputList<>(this, arguments);
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48 this.descriptor = descriptor;
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49 this.runtime = runtime;
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50 }
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51
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52 public ForeignCallDescriptor getDescriptor() {
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53 return descriptor;
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54 }
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55
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56 @Override
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57 public LocationIdentity[] getLocationIdentities() {
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58 return runtime.getKilledLocations(descriptor);
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59 }
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60
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61 protected Value[] operands(LIRGeneratorTool gen) {
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62 Value[] operands = new Value[arguments.size()];
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63 for (int i = 0; i < operands.length; i++) {
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64 operands[i] = gen.operand(arguments.get(i));
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65 }
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66 return operands;
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67 }
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68
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69 @Override
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70 public void generate(LIRGeneratorTool gen) {
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71 assert graph().start() instanceof StubStartNode;
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72 ForeignCallLinkage linkage = gen.getRuntime().lookupForeignCall(descriptor);
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73 Value[] operands = operands(gen);
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74 Value result = gen.emitForeignCall(linkage, this, operands);
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75 if (result != null) {
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76 gen.setResult(this, result);
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77 }
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78 }
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79
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80 @Override
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81 public String toString(Verbosity verbosity) {
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82 if (verbosity == Verbosity.Name) {
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83 return super.toString(verbosity) + "#" + descriptor;
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84 }
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85 return super.toString(verbosity);
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86 }
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87
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88 @Override
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89 public boolean canDeoptimize() {
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90 return false;
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91 }
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92
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93 @Override
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94 public FrameState getDeoptimizationState() {
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95 return null;
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96 }
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97
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98 @Override
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99 public void setDeoptimizationState(FrameState state) {
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100 }
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101
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102 @Override
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103 public DeoptimizationReason getDeoptimizationReason() {
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104 return null;
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105 }
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106
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107 public FrameState getState() {
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108 return deoptState;
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109 }
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110 }