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annotate graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/inlining/info/TypeGuardInlineInfo.java @ 18823:5a21cac1968f

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Add utilities ModifiersProvider#isConcrete, ResolvedJavaMethod#hasReceiver, ResolvedJavaMethod#hasBytecodes to Graal API.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sun, 11 Jan 2015 18:12:51 +0100
parents 59ffee3765ec
children f57d86eb036f
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1 /*
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2 * Copyright (c) 2013, 2014, 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.phases.common.inlining.info;
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24
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25 import java.util.*;
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26
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27 import com.oracle.graal.api.code.*;
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28 import com.oracle.graal.api.meta.*;
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29 import com.oracle.graal.compiler.common.calc.*;
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30 import com.oracle.graal.graph.*;
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31 import com.oracle.graal.nodes.CallTargetNode.InvokeKind;
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32 import com.oracle.graal.nodes.*;
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33 import com.oracle.graal.nodes.calc.*;
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34 import com.oracle.graal.nodes.extended.*;
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35 import com.oracle.graal.phases.common.inlining.*;
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36 import com.oracle.graal.phases.common.inlining.info.elem.*;
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37 import com.oracle.graal.phases.util.*;
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38
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39 /**
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40 * Represents an inlining opportunity for which profiling information suggests a monomorphic
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41 * receiver, but for which the receiver type cannot be proven. A type check guard will be generated
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42 * if this inlining is performed.
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43 */
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44 public class TypeGuardInlineInfo extends AbstractInlineInfo {
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45
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46 private final ResolvedJavaMethod concrete;
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47 private final ResolvedJavaType type;
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48 private Inlineable inlineableElement;
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49
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50 public TypeGuardInlineInfo(Invoke invoke, ResolvedJavaMethod concrete, ResolvedJavaType type) {
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51 super(invoke);
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52 this.concrete = concrete;
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53 this.type = type;
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54 assert type.isArray() || type.isConcrete() : type;
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55 }
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56
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57 @Override
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58 public int numberOfMethods() {
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59 return 1;
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60 }
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61
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62 @Override
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63 public ResolvedJavaMethod methodAt(int index) {
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64 assert index == 0;
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65 return concrete;
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66 }
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67
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68 @Override
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69 public Inlineable inlineableElementAt(int index) {
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70 assert index == 0;
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71 return inlineableElement;
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72 }
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73
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74 @Override
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75 public double probabilityAt(int index) {
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76 assert index == 0;
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77 return 1.0;
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78 }
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79
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80 @Override
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81 public double relevanceAt(int index) {
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82 assert index == 0;
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83 return 1.0;
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84 }
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85
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86 @Override
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87 public void setInlinableElement(int index, Inlineable inlineableElement) {
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88 assert index == 0;
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89 this.inlineableElement = inlineableElement;
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90 }
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91
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92 @Override
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93 public Collection<Node> inline(Providers providers, Assumptions assumptions) {
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94 createGuard(graph(), providers);
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95 return inline(invoke, concrete, inlineableElement, assumptions, false);
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96 }
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97
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98 @Override
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99 public void tryToDevirtualizeInvoke(Providers providers, Assumptions assumptions) {
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100 createGuard(graph(), providers);
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101 InliningUtil.replaceInvokeCallTarget(invoke, graph(), InvokeKind.Special, concrete);
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102 }
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103
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104 private void createGuard(StructuredGraph graph, Providers providers) {
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105 ValueNode nonNullReceiver = InliningUtil.nonNullReceiver(invoke);
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106 LoadHubNode receiverHub = graph.unique(LoadHubNode.create(providers.getStampProvider(), nonNullReceiver));
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107 ConstantNode typeHub = ConstantNode.forConstant(receiverHub.stamp(), type.getObjectHub(), providers.getMetaAccess(), graph);
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108
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109 CompareNode typeCheck = CompareNode.createCompareNode(graph, Condition.EQ, receiverHub, typeHub);
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110 FixedGuardNode guard = graph.add(FixedGuardNode.create(typeCheck, DeoptimizationReason.TypeCheckedInliningViolated, DeoptimizationAction.InvalidateReprofile));
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111 assert invoke.predecessor() != null;
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112
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113 ValueNode anchoredReceiver = InliningUtil.createAnchoredReceiver(graph, guard, type, nonNullReceiver, true);
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114 invoke.callTarget().replaceFirstInput(nonNullReceiver, anchoredReceiver);
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115
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116 graph.addBeforeFixed(invoke.asNode(), guard);
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117 }
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118
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119 @Override
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120 public String toString() {
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10c12d09a8d2 moved format(String format, JavaMethod method) from MetaUtil to be a default method in JavaMethod
Doug Simon <doug.simon@oracle.com>
parents: 15957
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121 return "type-checked with type " + type.getName() + " and method " + concrete.format("%H.%n(%p):%r");
15644
cd436bc5d63a [inlining] moving InlineInfo and subclasses to package inlining.info
Miguel Garcia <miguel.m.garcia@oracle.com>
parents:
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122 }
cd436bc5d63a [inlining] moving InlineInfo and subclasses to package inlining.info
Miguel Garcia <miguel.m.garcia@oracle.com>
parents:
diff changeset
123
cd436bc5d63a [inlining] moving InlineInfo and subclasses to package inlining.info
Miguel Garcia <miguel.m.garcia@oracle.com>
parents:
diff changeset
124 public boolean shouldInline() {
cd436bc5d63a [inlining] moving InlineInfo and subclasses to package inlining.info
Miguel Garcia <miguel.m.garcia@oracle.com>
parents:
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125 return concrete.shouldBeInlined();
cd436bc5d63a [inlining] moving InlineInfo and subclasses to package inlining.info
Miguel Garcia <miguel.m.garcia@oracle.com>
parents:
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126 }
cd436bc5d63a [inlining] moving InlineInfo and subclasses to package inlining.info
Miguel Garcia <miguel.m.garcia@oracle.com>
parents:
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127 }