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annotate graal/com.oracle.graal.snippets/src/com/oracle/graal/snippets/SnippetTemplate.java @ 5538:e18ba36bfebc

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Renamed RiConstant => Constant.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Fri, 08 Jun 2012 23:41:02 +0200
parents 816fb2492760
children a891c53a295b
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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.snippets;
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24
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25 import java.lang.reflect.*;
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26 import java.util.*;
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27 import java.util.Map.Entry;
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28 import java.util.concurrent.*;
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29
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30 import com.oracle.graal.api.code.*;
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31 import com.oracle.graal.api.meta.*;
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32 import com.oracle.graal.compiler.loop.*;
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33 import com.oracle.graal.compiler.phases.*;
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34 import com.oracle.graal.debug.*;
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35 import com.oracle.graal.graph.*;
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36 import com.oracle.graal.graph.Node.Verbosity;
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37 import com.oracle.graal.nodes.*;
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38 import com.oracle.graal.nodes.java.*;
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39 import com.oracle.graal.nodes.type.*;
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40 import com.oracle.graal.nodes.util.*;
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41 import com.oracle.graal.snippets.Snippet.ConstantParameter;
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42 import com.oracle.graal.snippets.Snippet.Multiple;
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43 import com.oracle.graal.snippets.Snippet.Parameter;
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44 import com.oracle.graal.snippets.nodes.*;
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45
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46 /**
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47 * A snippet template is a graph created by parsing a snippet method and then
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48 * specialized by binding constants to the snippet's {@link ConstantParameter} parameters.
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49 *
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50 * Snippet templates can be managed in a {@link Cache}.
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51 */
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52 public class SnippetTemplate {
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53
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54 /**
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55 * A snippet template key encapsulates the method from which a snippet was built
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56 * and the arguments used to specialized the snippet.
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57 *
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58 * @see Cache
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59 */
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60 public static class Key implements Iterable<Map.Entry<String, Object>> {
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61 public final RiResolvedMethod method;
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62 private final HashMap<String, Object> map = new HashMap<>();
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63 private int hash;
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64
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65 public Key(RiResolvedMethod method) {
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66 this.method = method;
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67 this.hash = method.hashCode();
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68 }
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69
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70 public Key add(String name, Object value) {
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71 assert value != null;
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72 assert !map.containsKey(name);
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73 map.put(name, value);
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74 hash = hash ^ name.hashCode() * (value.hashCode() + 1);
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75 return this;
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76 }
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77
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78 public int length() {
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79 return map.size();
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80 }
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81
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82 public Object get(String name) {
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83 return map.get(name);
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84 }
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85
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86 @Override
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87 public Iterator<Entry<String, Object>> iterator() {
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88 return map.entrySet().iterator();
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89 }
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90
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91 @Override
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92 public boolean equals(Object obj) {
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93 if (obj instanceof Key) {
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94 Key other = (Key) obj;
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95 return other.method == method && other.map.equals(map);
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96 }
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97 return false;
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98 }
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99
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100 @Override
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101 public int hashCode() {
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102 return hash;
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103 }
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104
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105 @Override
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106 public String toString() {
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107 return CiUtil.format("%h.%n", method) + map.toString();
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108 }
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109 }
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110
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111 /**
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112 * Arguments used to instantiate a template.
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113 */
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114 public static class Arguments implements Iterable<Map.Entry<String, Object>> {
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115 private final HashMap<String, Object> map = new HashMap<>();
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116
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117 public static Arguments arguments(String name, Object value) {
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118 return new Arguments().add(name, value);
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119 }
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120
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121 public Arguments add(String name, Object value) {
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122 assert !map.containsKey(name);
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123 map.put(name, value);
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124 return this;
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125 }
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126
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127 public int length() {
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128 return map.size();
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129 }
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130
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131 @Override
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132 public Iterator<Entry<String, Object>> iterator() {
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133 return map.entrySet().iterator();
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134 }
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135
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136 @Override
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137 public String toString() {
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138 return map.toString();
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139 }
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140 }
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141
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142 /**
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143 * A collection of snippet templates accessed by a {@link Key} instance.
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144 */
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145 public static class Cache {
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146
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147 private final ConcurrentHashMap<SnippetTemplate.Key, SnippetTemplate> templates = new ConcurrentHashMap<>();
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148 private final RiRuntime runtime;
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149
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150
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151 public Cache(RiRuntime runtime) {
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152 this.runtime = runtime;
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153 }
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154
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155 /**
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156 * Gets a template for a given key, creating it first if necessary.
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157 */
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158 public SnippetTemplate get(final SnippetTemplate.Key key) {
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159 SnippetTemplate template = templates.get(key);
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160 if (template == null) {
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161 template = Debug.scope("SnippetSpecialization", key.method, new Callable<SnippetTemplate>() {
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162 @Override
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163 public SnippetTemplate call() throws Exception {
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164 return new SnippetTemplate(runtime, key);
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165 }
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166 });
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167 //System.out.println(key + " -> " + template);
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168 templates.put(key, template);
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169 }
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170 return template;
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171 }
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172
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173 }
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174
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175 /**
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176 * Creates a snippet template.
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177 */
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178 public SnippetTemplate(RiRuntime runtime, SnippetTemplate.Key key) {
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179 RiResolvedMethod method = key.method;
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180 assert Modifier.isStatic(method.accessFlags()) : "snippet method must be static: " + method;
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181 RiSignature signature = method.signature();
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182
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183 // Copy snippet graph, replacing @Constant parameters with given arguments
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184 StructuredGraph snippetGraph = (StructuredGraph) method.compilerStorage().get(Graph.class);
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185 StructuredGraph snippetCopy = new StructuredGraph(snippetGraph.name, snippetGraph.method());
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186 IdentityHashMap<Node, Node> replacements = new IdentityHashMap<>();
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187 replacements.put(snippetGraph.start(), snippetCopy.start());
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188
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189 int parameterCount = signature.argumentCount(false);
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190 Parameter[] parameterAnnotations = new Parameter[parameterCount];
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191 ConstantNode[] placeholders = new ConstantNode[parameterCount];
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192 for (int i = 0; i < parameterCount; i++) {
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193 ConstantParameter c = CiUtil.getParameterAnnotation(ConstantParameter.class, i, method);
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194 if (c != null) {
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195 String name = c.value();
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196 Object arg = key.get(name);
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197 assert arg != null : method + ": requires a constant named " + name;
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198 RiKind kind = signature.argumentKindAt(i);
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199 assert checkConstantArgument(method, signature, i, name, arg, kind);
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200 replacements.put(snippetGraph.getLocal(i), ConstantNode.forCiConstant(Constant.forBoxed(kind, arg), runtime, snippetCopy));
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201 } else {
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202 Parameter p = CiUtil.getParameterAnnotation(Parameter.class, i, method);
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203 assert p != null : method + ": parameter " + i + " must be annotated with either @Constant or @Parameter";
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204 String name = p.value();
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205 if (p.multiple()) {
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206 Object multiple = key.get(name);
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207 assert multiple != null : method + ": requires a Multiple named " + name;
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208 assert checkMultipleArgument(method, signature, i, name, multiple);
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209 Object array = ((Multiple) multiple).array;
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210 ConstantNode placeholder = ConstantNode.forObject(array, runtime, snippetCopy);
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211 replacements.put(snippetGraph.getLocal(i), placeholder);
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212 placeholders[i] = placeholder;
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213 }
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214 parameterAnnotations[i] = p;
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215 }
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216 }
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217 snippetCopy.addDuplicates(snippetGraph.getNodes(), replacements);
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218
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219 Debug.dump(snippetCopy, "Before specialization");
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220 if (!replacements.isEmpty()) {
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221 new CanonicalizerPhase(null, runtime, null, 0, null).apply(snippetCopy);
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222 }
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223
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224 // Gather the template parameters
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225 parameters = new HashMap<>();
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226 for (int i = 0; i < parameterCount; i++) {
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227 Parameter p = parameterAnnotations[i];
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228 if (p != null) {
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229 if (p.multiple()) {
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230 assert snippetCopy.getLocal(i) == null;
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231 Object array = ((Multiple) key.get(p.value())).array;
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232 int length = Array.getLength(array);
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233 LocalNode[] locals = new LocalNode[length];
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diff changeset
234 Stamp stamp = StampFactory.forKind(runtime.getType(array.getClass().getComponentType()).kind());
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235 for (int j = 0; j < length; j++) {
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diff changeset
236 assert (parameterCount & 0xFFFF) == parameterCount;
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237 int idx = i << 16 | j;
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diff changeset
238 LocalNode local = snippetCopy.unique(new LocalNode(idx, stamp));
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239 locals[j] = local;
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diff changeset
240 }
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diff changeset
241 parameters.put(p.value(), locals);
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242
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243 ConstantNode placeholder = placeholders[i];
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diff changeset
244 assert placeholder != null;
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245 for (Node usage : placeholder.usages().snapshot()) {
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246 if (usage instanceof LoadIndexedNode) {
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247 LoadIndexedNode loadIndexed = (LoadIndexedNode) usage;
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248 Debug.dump(snippetCopy, "Before replacing %s", loadIndexed);
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diff changeset
249 LoadSnippetParameterNode loadSnippetParameter = snippetCopy.add(new LoadSnippetParameterNode(locals, loadIndexed.index(), loadIndexed.stamp()));
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diff changeset
250 snippetCopy.replaceFixedWithFixed(loadIndexed, loadSnippetParameter);
5481
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diff changeset
251 Debug.dump(snippetCopy, "After replacing %s", loadIndexed);
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252 }
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253 }
5481
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diff changeset
254 } else {
5482
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diff changeset
255 LocalNode local = snippetCopy.getLocal(i);
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diff changeset
256 assert local != null;
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diff changeset
257 parameters.put(p.value(), local);
5428
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258 }
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parents:
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259 }
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260 }
5428
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261
5481
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262 // Do any required loop explosion
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263 boolean exploded = false;
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diff changeset
264 do {
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diff changeset
265 exploded = false;
5490
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 5489 5482
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266 ExplodeLoopNode explodeLoop = snippetCopy.getNodes().filter(ExplodeLoopNode.class).first();
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 5489 5482
diff changeset
267 if (explodeLoop != null) { // Earlier canonicalization may have removed the loop altogether
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 5489 5482
diff changeset
268 LoopBeginNode loopBegin = explodeLoop.findLoopBegin();
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 5489 5482
diff changeset
269 if (loopBegin != null) {
Gilles Duboscq <duboscq@ssw.jku.at>
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270 LoopEx loop = new LoopsData(snippetCopy).loop(loopBegin);
Gilles Duboscq <duboscq@ssw.jku.at>
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diff changeset
271 int mark = snippetCopy.getMark();
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 5489 5482
diff changeset
272 LoopTransformations.fullUnroll(loop);
Gilles Duboscq <duboscq@ssw.jku.at>
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273 new CanonicalizerPhase(null, runtime, null, mark, null).apply(snippetCopy);
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274 }
5490
Gilles Duboscq <duboscq@ssw.jku.at>
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diff changeset
275 FixedNode explodeLoopNext = explodeLoop.next();
Gilles Duboscq <duboscq@ssw.jku.at>
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diff changeset
276 explodeLoop.clearSuccessors();
Gilles Duboscq <duboscq@ssw.jku.at>
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diff changeset
277 explodeLoop.replaceAtPredecessor(explodeLoopNext);
Gilles Duboscq <duboscq@ssw.jku.at>
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diff changeset
278 explodeLoop.replaceAtUsages(null);
Gilles Duboscq <duboscq@ssw.jku.at>
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diff changeset
279 GraphUtil.killCFG(explodeLoop);
Gilles Duboscq <duboscq@ssw.jku.at>
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diff changeset
280 exploded = true;
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281 }
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282 } while (exploded);
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283
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284 // Remove all frame states from inlined snippet graph. Snippets must be atomic (i.e. free
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285 // of side-effects that prevent deoptimizing to a point before the snippet).
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286 for (Node node : snippetCopy.getNodes()) {
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287 if (node instanceof StateSplit) {
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288 StateSplit stateSplit = (StateSplit) node;
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diff changeset
289 FrameState frameState = stateSplit.stateAfter();
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diff changeset
290 assert !stateSplit.hasSideEffect() : "snippets cannot contain side-effecting node " + node + "\n " + frameState.toString(Verbosity.Debugger);
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diff changeset
291 if (frameState != null) {
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diff changeset
292 stateSplit.setStateAfter(null);
5428
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parents:
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293 }
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parents:
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294 }
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parents:
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295 }
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parents:
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296
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diff changeset
297 new DeadCodeEliminationPhase().apply(snippetCopy);
5428
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298
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diff changeset
299 assert checkAllMultipleParameterPlaceholdersAreDeleted(parameterCount, placeholders);
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300
5481
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diff changeset
301 this.graph = snippetCopy;
5428
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parents:
diff changeset
302 nodes = new ArrayList<>(graph.getNodeCount());
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303 ReturnNode retNode = null;
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parents:
diff changeset
304 StartNode entryPointNode = graph.start();
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parents:
diff changeset
305 for (Node node : graph.getNodes()) {
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parents:
diff changeset
306 if (node == entryPointNode || node == entryPointNode.stateAfter()) {
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Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
307 // Do nothing.
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parents:
diff changeset
308 } else {
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parents:
diff changeset
309 nodes.add(node);
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parents:
diff changeset
310 if (node instanceof ReturnNode) {
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parents:
diff changeset
311 retNode = (ReturnNode) node;
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parents:
diff changeset
312 }
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Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
313 }
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Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
314 }
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parents:
diff changeset
315 this.returnNode = retNode;
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parents:
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316 }
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Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
317
5482
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diff changeset
318 private static boolean checkAllMultipleParameterPlaceholdersAreDeleted(int parameterCount, ConstantNode[] placeholders) {
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parents: 5481
diff changeset
319 for (int i = 0; i < parameterCount; i++) {
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parents: 5481
diff changeset
320 if (placeholders[i] != null) {
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parents: 5481
diff changeset
321 assert placeholders[i].isDeleted() : placeholders[i];
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diff changeset
322 }
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diff changeset
323 }
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Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
324 return true;
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Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
325 }
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Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
326
5503
438ab53efdd0 Renaming CiKind => RiKind.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5501
diff changeset
327 private static boolean checkConstantArgument(final RiResolvedMethod method, RiSignature signature, int i, String name, Object arg, RiKind kind) {
5481
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diff changeset
328 if (kind.isObject()) {
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parents: 5467
diff changeset
329 Class<?> type = signature.argumentTypeAt(i, method.holder()).resolve(method.holder()).toJava();
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parents: 5467
diff changeset
330 assert type.isInstance(arg) :
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Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
331 method + ": wrong value type for " + name + ": expected " + type.getName() + ", got " + arg.getClass().getName();
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parents: 5467
diff changeset
332 } else {
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Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
333 assert kind.toBoxedJavaClass() == arg.getClass() :
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
334 method + ": wrong value kind for " + name + ": expected " + kind + ", got " + arg.getClass().getSimpleName();
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Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
335 }
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Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
336 return true;
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
337 }
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
338
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
339 private static boolean checkMultipleArgument(final RiResolvedMethod method, RiSignature signature, int i, String name, Object multiple) {
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
340 assert multiple instanceof Multiple;
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
341 Object arg = ((Multiple) multiple).array;
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Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
342 RiResolvedType type = (RiResolvedType) signature.argumentTypeAt(i, method.holder());
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Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
343 Class< ? > javaType = type.toJava();
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Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
344 assert javaType.isArray() : "multiple parameter must be an array type";
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Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
345 assert javaType.isInstance(arg) : "value for " + name + " is not a " + javaType.getName() + " instance: " + arg;
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Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
346 return true;
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Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
347 }
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
348
5428
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Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
349 /**
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Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
350 * The graph built from the snippet method.
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Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
351 */
5481
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diff changeset
352 private final StructuredGraph graph;
5428
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Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
353
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
354 /**
5481
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diff changeset
355 * The named parameters of this template that must be bound to values during instantiation.
5482
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
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parents: 5481
diff changeset
356 * Each value in this map is either a {@link LocalNode} instance or a {@link LocalNode} array.
5428
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Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
357 */
5482
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diff changeset
358 private final Map<String, Object> parameters;
5428
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Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
359
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
360 /**
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
361 * The return node (if any) of the snippet.
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Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
362 */
5481
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diff changeset
363 private final ReturnNode returnNode;
5428
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Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
364
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
365 /**
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
366 * The nodes to be inlined when this specialization is instantiated.
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Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
367 */
5481
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parents: 5467
diff changeset
368 private final ArrayList<Node> nodes;
5428
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Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
369
5481
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Doug Simon <doug.simon@oracle.com>
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diff changeset
370 /**
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Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
371 * Gets the instantiation-time bindings to this template's parameters.
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Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
372 *
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Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
373 * @return the map that will be used to bind arguments to parameters when inlining this template
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
374 */
5484
f70b1547c7bf small refactoring of snippet API
Doug Simon <doug.simon@oracle.com>
parents: 5482
diff changeset
375 private IdentityHashMap<Node, Node> bind(StructuredGraph replaceeGraph, RiRuntime runtime, SnippetTemplate.Arguments args) {
5428
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Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
376 IdentityHashMap<Node, Node> replacements = new IdentityHashMap<>();
5481
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parents: 5467
diff changeset
377
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
378 for (Map.Entry<String, Object> e : args) {
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
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parents: 5467
diff changeset
379 String name = e.getKey();
5482
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
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parents: 5481
diff changeset
380 Object parameter = parameters.get(name);
5481
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Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
381 assert parameter != null : this + " has no parameter named " + name;
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
382 Object argument = e.getValue();
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
383 if (parameter instanceof LocalNode) {
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
384 if (argument instanceof ValueNode) {
5482
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
385 replacements.put((LocalNode) parameter, (ValueNode) argument);
5481
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
386 } else {
5503
438ab53efdd0 Renaming CiKind => RiKind.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5501
diff changeset
387 RiKind kind = ((LocalNode) parameter).kind();
5538
e18ba36bfebc Renamed RiConstant => Constant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5531
diff changeset
388 Constant constant = Constant.forBoxed(kind, argument);
5482
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
389 replacements.put((LocalNode) parameter, ConstantNode.forCiConstant(constant, runtime, replaceeGraph));
5481
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parents: 5467
diff changeset
390 }
5428
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
391 } else {
5482
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
392 assert parameter instanceof LocalNode[];
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
393 LocalNode[] locals = (LocalNode[]) parameter;
5481
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
394 Object array = argument;
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
395 assert array != null && array.getClass().isArray();
5482
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
396 int length = locals.length;
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
397 assert Array.getLength(array) == length : length + " != " + Array.getLength(array);
5481
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
398 for (int j = 0; j < length; j++) {
5482
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
399 LocalNode local = locals[j];
5481
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
400 assert local != null;
5538
e18ba36bfebc Renamed RiConstant => Constant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5531
diff changeset
401 Constant constant = Constant.forBoxed(local.kind(), Array.get(array, j));
5481
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
402 ConstantNode element = ConstantNode.forCiConstant(constant, runtime, replaceeGraph);
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
403 replacements.put(local, element);
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
404 }
5428
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
405 }
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
406 }
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
407 return replacements;
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
408 }
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
409
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
410 /**
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
411 * Replaces a given node with this specialized snippet.
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
412 *
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
413 * @param runtime
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
414 * @param replacee the node that will be replaced
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
415 * @param anchor the control flow replacee
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
416 * @param args the arguments to be bound to the flattened positional parameters of the snippet
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
417 */
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
418 public void instantiate(RiRuntime runtime,
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
419 Node replacee,
5484
f70b1547c7bf small refactoring of snippet API
Doug Simon <doug.simon@oracle.com>
parents: 5482
diff changeset
420 FixedWithNextNode anchor, SnippetTemplate.Arguments args) {
5428
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
421
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
422 // Inline the snippet nodes, replacing parameters with the given args in the process
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
423 String name = graph.name == null ? "{copy}" : graph.name + "{copy}";
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
424 StructuredGraph graphCopy = new StructuredGraph(name, graph.method());
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
425 StartNode entryPointNode = graph.start();
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
426 FixedNode firstCFGNode = entryPointNode.next();
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
427 StructuredGraph replaceeGraph = (StructuredGraph) replacee.graph();
5481
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
428 IdentityHashMap<Node, Node> replacements = bind(replaceeGraph, runtime, args);
5428
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
429 Map<Node, Node> duplicates = replaceeGraph.addDuplicates(nodes, replacements);
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
430 Debug.dump(replaceeGraph, "After inlining snippet %s", graphCopy.method());
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
431
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
432 // Re-wire the control flow graph around the replacee
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
433 FixedNode firstCFGNodeDuplicate = (FixedNode) duplicates.get(firstCFGNode);
5487
9743ae819f73 Move virtual chain help methods from SuperBlock to GraphUtil
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 5467
diff changeset
434 anchor.replaceAtPredecessor(firstCFGNodeDuplicate);
5428
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
435 FixedNode next = anchor.next();
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
436 anchor.setNext(null);
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
437
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
438 // Replace all usages of the replacee with the value returned by the snippet
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
439 Node returnValue = null;
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
440 if (returnNode != null) {
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
441 if (returnNode.result() instanceof LocalNode) {
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
442 returnValue = replacements.get(returnNode.result());
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
443 } else {
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
444 returnValue = duplicates.get(returnNode.result());
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
445 }
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
446 assert returnValue != null || replacee.usages().isEmpty();
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
447 replacee.replaceAtUsages(returnValue);
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
448
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
449 Node returnDuplicate = duplicates.get(returnNode);
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
450 returnDuplicate.clearInputs();
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
451 returnDuplicate.replaceAndDelete(next);
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
452 }
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
453
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
454 // Remove the replacee from its graph
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
455 replacee.clearInputs();
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
456 replacee.replaceAtUsages(null);
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
457 if (replacee instanceof FixedNode) {
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
458 GraphUtil.killCFG((FixedNode) replacee);
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
459 } else {
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
460 replacee.safeDelete();
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
461 }
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
462
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
463 Debug.dump(replaceeGraph, "After lowering %s with %s", replacee, this);
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
464 }
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
465
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
466 @Override
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
467 public String toString() {
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
468 StringBuilder buf = new StringBuilder(graph.toString()).append('(');
5481
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
469 String sep = "";
5482
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
470 for (Map.Entry<String, Object> e : parameters.entrySet()) {
5481
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
471 String name = e.getKey();
5482
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
472 Object value = e.getValue();
5481
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
473 buf.append(sep);
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
474 sep = ", ";
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
475 if (value instanceof LocalNode) {
5482
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
476 LocalNode local = (LocalNode) value;
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
477 buf.append(local.kind().name()).append(' ').append(name);
5428
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
478 } else {
5482
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
479 LocalNode[] locals = (LocalNode[]) value;
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
480 String kind = locals.length == 0 ? "?" : locals[0].kind().name();
9f4783c0269e folded -G:+CheckcastCounters functionality into checkcast snippets
Doug Simon <doug.simon@oracle.com>
parents: 5481
diff changeset
481 buf.append(kind).append('[').append(locals.length).append("] ").append(name);
5428
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
482 }
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
483 }
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
484 return buf.append(')').toString();
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
485 }
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
486 }
5481
e26e6dca0bcf added @Parameter and @Constant annotations which simplify creation and instantiation of snippets
Doug Simon <doug.simon@oracle.com>
parents: 5467
diff changeset
487