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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/ForeignCallNode.java @ 10090:ae6f0c381087

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split MemoryCheckpoint interface into Single and Multi
author Lukas Stadler <lukas.stadler@jku.at>
date Wed, 19 Jun 2013 16:42:56 +0200
parents 3d09efebcc8e
children 51b8585a1d70
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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.nodes.extended;
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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.spi.*;
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30 import com.oracle.graal.nodes.type.*;
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31
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32 /**
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33 * Node for a {@linkplain ForeignCallDescriptor foreign} call.
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34 */
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35 @NodeInfo(nameTemplate = "ForeignCall#{p#descriptor/s}")
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36 public class ForeignCallNode extends AbstractStateSplit implements LIRLowerable, DeoptimizingNode, MemoryCheckpoint.Multi {
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37
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38 @Input private final NodeInputList<ValueNode> arguments;
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39 private final MetaAccessProvider runtime;
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40 @Input private FrameState deoptState;
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41
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42 private final ForeignCallDescriptor descriptor;
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43
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44 public ForeignCallNode(MetaAccessProvider runtime, ForeignCallDescriptor descriptor, ValueNode... arguments) {
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45 super(StampFactory.forKind(Kind.fromJavaClass(descriptor.getResultType())));
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46 this.arguments = new NodeInputList<>(this, arguments);
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47 this.descriptor = descriptor;
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48 this.runtime = runtime;
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49 }
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50
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51 protected ForeignCallNode(MetaAccessProvider runtime, ForeignCallDescriptor descriptor, Stamp stamp) {
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52 super(stamp);
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53 this.arguments = new NodeInputList<>(this);
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54 this.descriptor = descriptor;
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55 this.runtime = runtime;
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56 }
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57
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58 @Override
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59 public boolean hasSideEffect() {
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60 return !runtime.isReexecutable(descriptor);
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61 }
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62
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63 public ForeignCallDescriptor getDescriptor() {
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64 return descriptor;
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65 }
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66
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67 @Override
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68 public LocationIdentity[] getLocationIdentities() {
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69 return runtime.getKilledLocations(descriptor);
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70 }
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71
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72 protected Value[] operands(LIRGeneratorTool gen) {
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73 Value[] operands = new Value[arguments.size()];
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74 for (int i = 0; i < operands.length; i++) {
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75 operands[i] = gen.operand(arguments.get(i));
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76 }
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77 return operands;
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78 }
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79
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80 @Override
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81 public void generate(LIRGeneratorTool gen) {
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82 ForeignCallLinkage linkage = gen.getRuntime().lookupForeignCall(descriptor);
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83 Value[] operands = operands(gen);
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84 Value result = gen.emitForeignCall(linkage, this, operands);
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85 if (result != null) {
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86 gen.setResult(this, result);
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87 }
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88 }
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89
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90 @Override
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91 public FrameState getDeoptimizationState() {
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92 if (deoptState != null) {
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93 return deoptState;
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94 } else if (stateAfter() != null && canDeoptimize()) {
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95 FrameState stateDuring = stateAfter();
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96 if ((stateDuring.stackSize() > 0 && stateDuring.stackAt(stateDuring.stackSize() - 1) == this) || (stateDuring.stackSize() > 1 && stateDuring.stackAt(stateDuring.stackSize() - 2) == this)) {
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97 stateDuring = stateDuring.duplicateModified(stateDuring.bci, stateDuring.rethrowException(), this.kind());
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98 }
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99 setDeoptimizationState(stateDuring);
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100 return stateDuring;
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101 }
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102 return null;
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103 }
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104
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105 @Override
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106 public void setDeoptimizationState(FrameState f) {
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107 updateUsages(deoptState, f);
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108 assert deoptState == null && canDeoptimize() : "shouldn't assign deoptState to " + this;
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109 deoptState = f;
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110 }
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111
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112 @Override
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113 public void setStateAfter(FrameState x) {
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114 if (hasSideEffect() || canDeoptimize()) {
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115 super.setStateAfter(x);
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116 }
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117 }
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118
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119 @Override
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120 public String toString(Verbosity verbosity) {
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121 if (verbosity == Verbosity.Name) {
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2a0c9f20baa1 consolidated framework for runtime and stub calls and moved declaration of descriptors for such calls to the source file in which they are used
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parents: 6458
diff changeset
122 return super.toString(verbosity) + "#" + descriptor;
5579
8e6622e1fb7e renamed node intrinsic methods in RuntimeCallNode to better distinguish return type
Doug Simon <doug.simon@oracle.com>
parents: 5547
diff changeset
123 }
8e6622e1fb7e renamed node intrinsic methods in RuntimeCallNode to better distinguish return type
Doug Simon <doug.simon@oracle.com>
parents: 5547
diff changeset
124 return super.toString(verbosity);
8e6622e1fb7e renamed node intrinsic methods in RuntimeCallNode to better distinguish return type
Doug Simon <doug.simon@oracle.com>
parents: 5547
diff changeset
125 }
8892
2c0c708a0ad6 Introduce DeoptimizingNode interface
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 8394
diff changeset
126
2c0c708a0ad6 Introduce DeoptimizingNode interface
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 8394
diff changeset
127 @Override
2c0c708a0ad6 Introduce DeoptimizingNode interface
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 8394
diff changeset
128 public boolean canDeoptimize() {
9819
8aea948c522b added support for the runtime to specify for each foreign call whether deoptimization can occur during the call
Doug Simon <doug.simon@oracle.com>
parents: 9794
diff changeset
129 return runtime.canDeoptimize(descriptor);
8892
2c0c708a0ad6 Introduce DeoptimizingNode interface
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 8394
diff changeset
130 }
2c0c708a0ad6 Introduce DeoptimizingNode interface
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 8394
diff changeset
131
2c0c708a0ad6 Introduce DeoptimizingNode interface
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 8394
diff changeset
132 @Override
2c0c708a0ad6 Introduce DeoptimizingNode interface
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 8394
diff changeset
133 public DeoptimizationReason getDeoptimizationReason() {
2c0c708a0ad6 Introduce DeoptimizingNode interface
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 8394
diff changeset
134 return null;
2c0c708a0ad6 Introduce DeoptimizingNode interface
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 8394
diff changeset
135 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
136 }