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annotate graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/BoxingSnippets.java @ 23394:964f28c04d7b default tip

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Don't fill the code cache with nmethods from CTW
author Tom Rodriguez <tom.rodriguez@oracle.com>
date Fri, 05 Feb 2016 22:48:36 -0800
parents 615f3bbbb174
children
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1 /*
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2 * Copyright (c) 2012, 2015, 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.replacements;
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24
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25 import static com.oracle.graal.compiler.common.GraalOptions.ImmutableCode;
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26 import static com.oracle.graal.compiler.common.GraalOptions.SnippetCounters;
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27 import static com.oracle.graal.replacements.SnippetTemplate.DEFAULT_REPLACER;
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28
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29 import java.util.EnumMap;
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30
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31 import jdk.vm.ci.code.TargetDescription;
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32 import jdk.vm.ci.meta.ConstantReflectionProvider;
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33 import jdk.vm.ci.meta.JavaConstant;
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34 import jdk.vm.ci.meta.JavaKind;
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35 import jdk.vm.ci.meta.MetaAccessProvider;
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36
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37 import com.oracle.graal.api.replacements.SnippetReflectionProvider;
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38 import com.oracle.graal.compiler.common.type.StampFactory;
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39 import com.oracle.graal.debug.Debug;
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40 import com.oracle.graal.nodes.ConstantNode;
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41 import com.oracle.graal.nodes.PiNode;
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42 import com.oracle.graal.nodes.ValueNode;
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43 import com.oracle.graal.nodes.calc.FloatingNode;
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44 import com.oracle.graal.nodes.extended.BoxNode;
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45 import com.oracle.graal.nodes.extended.UnboxNode;
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46 import com.oracle.graal.nodes.spi.LoweringTool;
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47 import com.oracle.graal.phases.util.Providers;
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48 import com.oracle.graal.replacements.SnippetTemplate.AbstractTemplates;
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49 import com.oracle.graal.replacements.SnippetTemplate.Arguments;
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50 import com.oracle.graal.replacements.SnippetTemplate.SnippetInfo;
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51
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52 public class BoxingSnippets implements Snippets {
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53
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54 @Snippet
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55 public static Object booleanValueOf(boolean value) {
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56 valueOfCounter.inc();
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57 return PiNode.piCast(Boolean.valueOf(value), StampFactory.forNodeIntrinsic());
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58 }
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59
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60 @Snippet
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61 public static Object byteValueOf(byte value) {
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62 valueOfCounter.inc();
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63 return PiNode.piCast(Byte.valueOf(value), StampFactory.forNodeIntrinsic());
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64 }
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65
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66 @Snippet
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67 public static Object charValueOf(char value) {
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68 valueOfCounter.inc();
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69 return PiNode.piCast(Character.valueOf(value), StampFactory.forNodeIntrinsic());
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70 }
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71
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72 @Snippet
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73 public static Object doubleValueOf(double value) {
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74 valueOfCounter.inc();
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75 return PiNode.piCast(Double.valueOf(value), StampFactory.forNodeIntrinsic());
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76 }
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77
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78 @Snippet
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79 public static Object floatValueOf(float value) {
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80 valueOfCounter.inc();
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81 return PiNode.piCast(Float.valueOf(value), StampFactory.forNodeIntrinsic());
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82 }
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83
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84 @Snippet
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85 public static Object intValueOf(int value) {
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86 valueOfCounter.inc();
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87 return PiNode.piCast(Integer.valueOf(value), StampFactory.forNodeIntrinsic());
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88 }
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89
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90 @Snippet
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91 public static Object longValueOf(long value) {
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92 valueOfCounter.inc();
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93 return PiNode.piCast(Long.valueOf(value), StampFactory.forNodeIntrinsic());
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94 }
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95
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96 @Snippet
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97 public static Object shortValueOf(short value) {
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98 valueOfCounter.inc();
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99 return PiNode.piCast(Short.valueOf(value), StampFactory.forNodeIntrinsic());
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100 }
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101
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102 @Snippet
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103 public static boolean booleanValue(Boolean value) {
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104 valueOfCounter.inc();
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105 return value.booleanValue();
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106 }
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107
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108 @Snippet
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109 public static byte byteValue(Byte value) {
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110 valueOfCounter.inc();
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111 return value.byteValue();
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112 }
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113
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114 @Snippet
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115 public static char charValue(Character value) {
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116 valueOfCounter.inc();
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117 return value.charValue();
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118 }
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119
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120 @Snippet
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121 public static double doubleValue(Double value) {
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122 valueOfCounter.inc();
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123 return value.doubleValue();
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124 }
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125
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126 @Snippet
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127 public static float floatValue(Float value) {
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128 valueOfCounter.inc();
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129 return value.floatValue();
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130 }
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131
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132 @Snippet
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133 public static int intValue(Integer value) {
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134 valueOfCounter.inc();
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135 return value.intValue();
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136 }
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137
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138 @Snippet
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139 public static long longValue(Long value) {
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140 valueOfCounter.inc();
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141 return value.longValue();
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142 }
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143
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144 @Snippet
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145 public static short shortValue(Short value) {
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146 valueOfCounter.inc();
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147 return value.shortValue();
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148 }
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149
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150 public static FloatingNode canonicalizeBoxing(BoxNode box, MetaAccessProvider metaAccess, ConstantReflectionProvider constantReflection) {
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151 ValueNode value = box.getValue();
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152 if (value.isConstant()) {
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153 JavaConstant sourceConstant = value.asJavaConstant();
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154 if (sourceConstant.getJavaKind() != box.getBoxingKind() && sourceConstant.getJavaKind().isNumericInteger()) {
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155 switch (box.getBoxingKind()) {
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156 case Boolean:
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157 sourceConstant = JavaConstant.forBoolean(sourceConstant.asLong() != 0L);
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158 break;
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159 case Byte:
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160 sourceConstant = JavaConstant.forByte((byte) sourceConstant.asLong());
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161 break;
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162 case Char:
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163 sourceConstant = JavaConstant.forChar((char) sourceConstant.asLong());
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164 break;
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165 case Short:
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166 sourceConstant = JavaConstant.forShort((short) sourceConstant.asLong());
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167 break;
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168 }
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169 }
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170 JavaConstant boxedConstant = constantReflection.boxPrimitive(sourceConstant);
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171 if (boxedConstant != null && sourceConstant.getJavaKind() == box.getBoxingKind()) {
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172 return ConstantNode.forConstant(boxedConstant, metaAccess, box.graph());
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173 }
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174 }
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175 return null;
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176 }
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177
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178 public static class Templates extends AbstractTemplates {
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179
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180 private final EnumMap<JavaKind, SnippetInfo> boxSnippets = new EnumMap<>(JavaKind.class);
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181 private final EnumMap<JavaKind, SnippetInfo> unboxSnippets = new EnumMap<>(JavaKind.class);
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182
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183 public Templates(Providers providers, SnippetReflectionProvider snippetReflection, TargetDescription target) {
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184 super(providers, snippetReflection, target);
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185 for (JavaKind kind : new JavaKind[]{JavaKind.Boolean, JavaKind.Byte, JavaKind.Char, JavaKind.Double, JavaKind.Float, JavaKind.Int, JavaKind.Long, JavaKind.Short}) {
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186 boxSnippets.put(kind, snippet(BoxingSnippets.class, kind.getJavaName() + "ValueOf"));
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187 unboxSnippets.put(kind, snippet(BoxingSnippets.class, kind.getJavaName() + "Value"));
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188 }
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189 }
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190
10569
6b9ebfcf5fc5 make BoxNode and UnboxNode floating
Lukas Stadler <lukas.stadler@jku.at>
parents: 10074
diff changeset
191 public void lower(BoxNode box, LoweringTool tool) {
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192 FloatingNode canonical = canonicalizeBoxing(box, providers.getMetaAccess(), providers.getConstantReflection());
10074
e8fbc5fd3440 aot: add/fix some javadoc
Bernhard Urban <bernhard.urban@jku.at>
parents: 10064
diff changeset
193 // if in AOT mode, we don't want to embed boxed constants.
13378
16d99e9d77ad Options: rename flag (AOTCompilation -> ImmutableCode)
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parents: 12054
diff changeset
194 if (canonical != null && !ImmutableCode.getValue()) {
21669
942793d2a513 Turn BoxNode from floating to fixed node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 21556
diff changeset
195 box.graph().replaceFixedWithFloating(box, canonical);
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diff changeset
196 } else {
13505
75a67ebd50e8 Introduce a LoweringStage so that lowerings can be conditional on one of the three times that lowering is performed by default
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diff changeset
197 Arguments args = new Arguments(boxSnippets.get(box.getBoxingKind()), box.graph().getGuardsStage(), tool.getLoweringStage());
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198 args.add("value", box.getValue());
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199
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200 SnippetTemplate template = template(args);
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diff changeset
201 Debug.log("Lowering integerValueOf in %s: node=%s, template=%s, arguments=%s", box.graph(), box, template, args);
21669
942793d2a513 Turn BoxNode from floating to fixed node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 21556
diff changeset
202 template.instantiate(providers.getMetaAccess(), box, DEFAULT_REPLACER, args);
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203 }
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parents:
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204 }
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parents:
diff changeset
205
10569
6b9ebfcf5fc5 make BoxNode and UnboxNode floating
Lukas Stadler <lukas.stadler@jku.at>
parents: 10074
diff changeset
206 public void lower(UnboxNode unbox, LoweringTool tool) {
13505
75a67ebd50e8 Introduce a LoweringStage so that lowerings can be conditional on one of the three times that lowering is performed by default
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parents: 13378
diff changeset
207 Arguments args = new Arguments(unboxSnippets.get(unbox.getBoxingKind()), unbox.graph().getGuardsStage(), tool.getLoweringStage());
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diff changeset
208 args.add("value", unbox.getValue());
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parents:
diff changeset
209
92d2bedb5dfc Change of Snippet template and instantiation process
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parents:
diff changeset
210 SnippetTemplate template = template(args);
92d2bedb5dfc Change of Snippet template and instantiation process
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parents:
diff changeset
211 Debug.log("Lowering integerValueOf in %s: node=%s, template=%s, arguments=%s", unbox.graph(), unbox, template, args);
19838
8aa5bd9935b3 Turn UnboxNode into a fixed node.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 19775
diff changeset
212 template.instantiate(providers.getMetaAccess(), unbox, DEFAULT_REPLACER, args);
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213 }
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parents:
diff changeset
214 }
92d2bedb5dfc Change of Snippet template and instantiation process
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parents:
diff changeset
215
9864
063a712fe8d8 converted remaining options in GraalOptions to new system (GRAAL-27)
Doug Simon <doug.simon@oracle.com>
parents: 9602
diff changeset
216 private static final SnippetCounter.Group integerCounters = SnippetCounters.getValue() ? new SnippetCounter.Group("Integer intrinsifications") : null;
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diff changeset
217 private static final SnippetCounter valueOfCounter = new SnippetCounter(integerCounters, "valueOf", "valueOf intrinsification");
92d2bedb5dfc Change of Snippet template and instantiation process
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parents:
diff changeset
218
92d2bedb5dfc Change of Snippet template and instantiation process
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parents:
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219 }