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annotate graal/com.oracle.graal.hotspot.hsail/src/com/oracle/graal/hotspot/hsail/HSAILHotSpotLoweringProvider.java @ 18845:f57d86eb036f

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removed Node factory methods
author Doug Simon <doug.simon@oracle.com>
date Mon, 12 Jan 2015 20:39:04 +0100
parents c240024b32b3
children
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1 /*
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2 * Copyright (c) 2013, 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.hsail;
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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.*;
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30 import com.oracle.graal.graph.*;
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31 import com.oracle.graal.hotspot.*;
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32 import com.oracle.graal.hotspot.hsail.replacements.*;
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33 import com.oracle.graal.hotspot.meta.*;
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34 import com.oracle.graal.nodes.*;
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35 import com.oracle.graal.nodes.calc.*;
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36 import com.oracle.graal.nodes.extended.*;
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37 import com.oracle.graal.nodes.java.*;
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38 import com.oracle.graal.nodes.spi.*;
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39
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70e4316c5785 Split HotSpotLoweringProvider into interface and implementation class.
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40 public class HSAILHotSpotLoweringProvider extends DefaultHotSpotLoweringProvider {
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41
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42 private HSAILNewObjectSnippets.Templates hsailNewObjectSnippets;
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43
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44 abstract class LoweringStrategy {
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45 abstract void lower(Node n, LoweringTool tool);
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46 }
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47
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48 final LoweringStrategy passThruStrategy = new LoweringStrategy() {
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49 @Override
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50 void lower(Node n, LoweringTool tool) {
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51 return;
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52 }
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53 };
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54
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55 final LoweringStrategy rejectStrategy = new LoweringStrategy() {
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56 @Override
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57 void lower(Node n, LoweringTool tool) {
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58 throw new GraalInternalError("Node implementing Lowerable not handled in HSAIL Backend: " + n);
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59 }
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60 };
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61
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62 final LoweringStrategy newObjectStrategy = new LoweringStrategy() {
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63 @Override
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64 void lower(Node n, LoweringTool tool) {
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65 StructuredGraph graph = (StructuredGraph) n.graph();
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66 if (graph.getGuardsStage() == StructuredGraph.GuardsStage.AFTER_FSA) {
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67 if (n instanceof NewInstanceNode) {
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68 hsailNewObjectSnippets.lower((NewInstanceNode) n, tool);
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69 } else if (n instanceof NewArrayNode) {
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70 hsailNewObjectSnippets.lower((NewArrayNode) n, runtime, tool);
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71 }
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72 }
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73 }
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74 };
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75
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76 // strategy to replace an UnwindNode with a DeoptNode
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77 final LoweringStrategy unwindNodeStrategy = new LoweringStrategy() {
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78 @Override
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79 void lower(Node n, LoweringTool tool) {
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80 StructuredGraph graph = (StructuredGraph) n.graph();
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81 UnwindNode unwind = (UnwindNode) n;
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82 ValueNode exception = unwind.exception();
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83 if (exception instanceof ForeignCallNode) {
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84 // build up action and reason
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85 String callName = ((ForeignCallNode) exception).getDescriptor().getName();
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86 DeoptimizationReason reason;
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87 switch (callName) {
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88 case "createOutOfBoundsException":
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89 reason = DeoptimizationReason.BoundsCheckException;
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90 break;
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91 case "createNullPointerException":
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92 reason = DeoptimizationReason.NullCheckException;
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93 break;
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94 default:
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95 reason = DeoptimizationReason.None;
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96 }
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97 unwind.replaceAtPredecessor(graph.add(new DeoptimizeNode(DeoptimizationAction.InvalidateReprofile, reason)));
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98 unwind.safeDelete();
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99 } else {
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100 // unwind whose exception is not an instance of ForeignCallNode
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101 throw new GraalInternalError("UnwindNode seen without ForeignCallNode: " + exception);
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102 }
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103 }
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104 };
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105
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106 private HashMap<NodeClass, LoweringStrategy> strategyMap = new HashMap<>();
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107
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108 void initStrategyMap() {
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109 strategyMap.put(NodeClass.get(IntegerConvertNode.class), passThruStrategy);
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110 strategyMap.put(NodeClass.get(FloatConvertNode.class), passThruStrategy);
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111 strategyMap.put(NodeClass.get(NewInstanceNode.class), newObjectStrategy);
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112 strategyMap.put(NodeClass.get(NewArrayNode.class), newObjectStrategy);
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113 strategyMap.put(NodeClass.get(NewMultiArrayNode.class), rejectStrategy);
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114 strategyMap.put(NodeClass.get(DynamicNewArrayNode.class), rejectStrategy);
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115 strategyMap.put(NodeClass.get(MonitorEnterNode.class), rejectStrategy);
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116 strategyMap.put(NodeClass.get(MonitorExitNode.class), rejectStrategy);
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117 strategyMap.put(NodeClass.get(UnwindNode.class), unwindNodeStrategy);
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118 }
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119
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120 private LoweringStrategy getStrategy(Node n) {
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121 return strategyMap.get(n.getNodeClass());
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122 }
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123
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124 public HSAILHotSpotLoweringProvider(HotSpotGraalRuntimeProvider runtime, MetaAccessProvider metaAccess, ForeignCallsProvider foreignCalls, HotSpotRegistersProvider registers,
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125 TargetDescription target) {
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126 super(runtime, metaAccess, foreignCalls, registers, target);
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127 initStrategyMap();
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128 }
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129
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130 @Override
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131 public void initialize(HotSpotProviders providers, HotSpotVMConfig config) {
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132 super.initialize(providers, config);
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133 hsailNewObjectSnippets = new HSAILNewObjectSnippets.Templates(providers, target);
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134 }
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135
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136 @Override
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137 public void lower(Node n, LoweringTool tool) {
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138 LoweringStrategy strategy = getStrategy(n);
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139 // if not in map, let superclass handle it
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140 if (strategy == null) {
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141 super.lower(n, tool);
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142 } else {
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143 strategy.lower(n, tool);
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144 }
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145 }
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146
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147 }