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annotate graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/Constant.java @ 15183:b862cf4381ef

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don't throw exception for Constant.toValueString with Kind.Illegal
author Lukas Stadler <lukas.stadler@oracle.com>
date Thu, 17 Apr 2014 09:59:27 +0200
parents db4254246f9a
children e43591136d9f
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1 /*
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2 * Copyright (c) 2009, 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.api.meta;
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24
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25 /**
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26 * Represents a constant (boxed) value, such as an integer, floating point number, or object
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27 * reference, within the compiler and across the compiler/runtime interface. Exports a set of
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28 * {@code Constant} instances that represent frequently used constant values, such as
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29 * {@link #NULL_OBJECT}.
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30 */
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31 public abstract class Constant extends Value {
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32
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33 private static final long serialVersionUID = -6355452536852663986L;
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34
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35 private static final Constant[] INT_CONSTANT_CACHE = new Constant[100];
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36 static {
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37 for (int i = 0; i < INT_CONSTANT_CACHE.length; ++i) {
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38 INT_CONSTANT_CACHE[i] = new PrimitiveConstant(Kind.Int, i);
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39 }
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40 }
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41
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42 public static final Constant NULL_OBJECT = new NullConstant();
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43 public static final Constant INT_MINUS_1 = new PrimitiveConstant(Kind.Int, -1);
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44 public static final Constant INT_0 = forInt(0);
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45 public static final Constant INT_1 = forInt(1);
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46 public static final Constant INT_2 = forInt(2);
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47 public static final Constant INT_3 = forInt(3);
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48 public static final Constant INT_4 = forInt(4);
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49 public static final Constant INT_5 = forInt(5);
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50 public static final Constant LONG_0 = new PrimitiveConstant(Kind.Long, 0L);
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51 public static final Constant LONG_1 = new PrimitiveConstant(Kind.Long, 1L);
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52 public static final Constant FLOAT_0 = new PrimitiveConstant(Kind.Float, Float.floatToRawIntBits(0.0F));
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53 public static final Constant FLOAT_1 = new PrimitiveConstant(Kind.Float, Float.floatToRawIntBits(1.0F));
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54 public static final Constant FLOAT_2 = new PrimitiveConstant(Kind.Float, Float.floatToRawIntBits(2.0F));
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55 public static final Constant DOUBLE_0 = new PrimitiveConstant(Kind.Double, Double.doubleToRawLongBits(0.0D));
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56 public static final Constant DOUBLE_1 = new PrimitiveConstant(Kind.Double, Double.doubleToRawLongBits(1.0D));
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57 public static final Constant TRUE = new PrimitiveConstant(Kind.Boolean, 1L);
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58 public static final Constant FALSE = new PrimitiveConstant(Kind.Boolean, 0L);
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59
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60 static {
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61 assert FLOAT_0 != forFloat(-0.0F) : "Constant for 0.0f must be different from -0.0f";
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62 assert DOUBLE_0 != forDouble(-0.0d) : "Constant for 0.0d must be different from -0.0d";
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63 assert NULL_OBJECT.isNull();
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64 }
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65
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66 protected Constant(Kind kind) {
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67 super(kind);
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68 }
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69
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70 /**
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71 * Checks whether this constant is null.
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72 *
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73 * @return {@code true} if this constant is the null constant
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74 */
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75 public abstract boolean isNull();
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76
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77 /**
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78 * Checks whether this constant is non-null.
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79 *
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80 * @return {@code true} if this constant is a primitive, or an object constant that is not null
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81 */
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82 public final boolean isNonNull() {
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83 return !isNull();
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84 }
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85
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86 /**
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87 * Checks whether this constant is the default value for its kind (null, 0, 0.0, false).
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88 *
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89 * @return {@code true} if this constant is the default value for its kind
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90 */
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91 public abstract boolean isDefaultForKind();
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92
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93 /**
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94 * Returns the value of this constant as a boxed Java value.
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95 *
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96 * @return the value of this constant
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97 */
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98 public abstract Object asBoxedPrimitive();
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99
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100 /**
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101 * Returns the primitive int value this constant represents. The constant must have a
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102 * {@link Kind#getStackKind()} of {@link Kind#Int}.
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103 *
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104 * @return the constant value
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105 */
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106 public abstract int asInt();
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107
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108 /**
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109 * Returns the primitive boolean value this constant represents. The constant must have kind
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110 * {@link Kind#Boolean}.
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111 *
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112 * @return the constant value
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113 */
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114 public abstract boolean asBoolean();
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115
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116 /**
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117 * Returns the primitive long value this constant represents. The constant must have kind
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118 * {@link Kind#Long}, a {@link Kind#getStackKind()} of {@link Kind#Int}.
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119 *
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120 * @return the constant value
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121 */
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122 public abstract long asLong();
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123
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124 /**
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125 * Returns the primitive float value this constant represents. The constant must have kind
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126 * {@link Kind#Float}.
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127 *
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128 * @return the constant value
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129 */
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130 public abstract float asFloat();
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131
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132 /**
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133 * Returns the primitive double value this constant represents. The constant must have kind
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134 * {@link Kind#Double}.
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135 *
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136 * @return the constant value
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137 */
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138 public abstract double asDouble();
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139
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140 public String toValueString() {
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141 if (getKind() == Kind.Illegal) {
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142 return "illegal";
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143 } else {
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144 return getKind().format(asBoxedPrimitive());
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145 }
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146 }
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147
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148 @Override
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149 public String toString() {
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150 if (getKind() == Kind.Illegal) {
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151 return "illegal";
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152 } else {
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153 return getKind().getJavaName() + "[" + toValueString() + "]";
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eec373d34caf added support for annotated Constants and used it to track Klass* values in Graal and register them in the metadata section of a nmethod during code installation
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154 }
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155 }
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156
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157 /**
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158 * Creates a boxed double constant.
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159 *
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160 * @param d the double value to box
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161 * @return a boxed copy of {@code value}
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162 */
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163 public static Constant forDouble(double d) {
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164 if (Double.compare(0.0D, d) == 0) {
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165 return DOUBLE_0;
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166 }
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167 if (Double.compare(d, 1.0D) == 0) {
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168 return DOUBLE_1;
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169 }
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170 return new PrimitiveConstant(Kind.Double, Double.doubleToRawLongBits(d));
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171 }
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172
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parents:
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173 /**
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diff changeset
174 * Creates a boxed float constant.
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175 *
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176 * @param f the float value to box
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177 * @return a boxed copy of {@code value}
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178 */
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179 public static Constant forFloat(float f) {
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180 if (Float.compare(f, 0.0F) == 0) {
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181 return FLOAT_0;
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182 }
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diff changeset
183 if (Float.compare(f, 1.0F) == 0) {
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184 return FLOAT_1;
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185 }
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diff changeset
186 if (Float.compare(f, 2.0F) == 0) {
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187 return FLOAT_2;
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188 }
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189 return new PrimitiveConstant(Kind.Float, Float.floatToRawIntBits(f));
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190 }
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191
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diff changeset
192 /**
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diff changeset
193 * Creates a boxed long constant.
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diff changeset
194 *
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195 * @param i the long value to box
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196 * @return a boxed copy of {@code value}
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197 */
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diff changeset
198 public static Constant forLong(long i) {
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199 return i == 0 ? LONG_0 : i == 1 ? LONG_1 : new PrimitiveConstant(Kind.Long, i);
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200 }
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201
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parents:
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202 /**
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203 * Creates a boxed integer constant.
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204 *
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205 * @param i the integer value to box
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206 * @return a boxed copy of {@code value}
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207 */
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diff changeset
208 public static Constant forInt(int i) {
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diff changeset
209 if (i == -1) {
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diff changeset
210 return INT_MINUS_1;
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diff changeset
211 }
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diff changeset
212 if (i >= 0 && i < INT_CONSTANT_CACHE.length) {
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diff changeset
213 return INT_CONSTANT_CACHE[i];
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diff changeset
214 }
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diff changeset
215 return new PrimitiveConstant(Kind.Int, i);
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216 }
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217
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parents:
diff changeset
218 /**
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diff changeset
219 * Creates a boxed byte constant.
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diff changeset
220 *
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221 * @param i the byte value to box
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parents:
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222 * @return a boxed copy of {@code value}
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parents:
diff changeset
223 */
5538
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diff changeset
224 public static Constant forByte(byte i) {
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diff changeset
225 return new PrimitiveConstant(Kind.Byte, i);
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226 }
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diff changeset
227
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parents:
diff changeset
228 /**
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parents:
diff changeset
229 * Creates a boxed boolean constant.
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diff changeset
230 *
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231 * @param i the boolean value to box
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parents:
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232 * @return a boxed copy of {@code value}
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parents:
diff changeset
233 */
5538
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diff changeset
234 public static Constant forBoolean(boolean i) {
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parents:
diff changeset
235 return i ? TRUE : FALSE;
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parents:
diff changeset
236 }
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parents:
diff changeset
237
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parents:
diff changeset
238 /**
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parents:
diff changeset
239 * Creates a boxed char constant.
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diff changeset
240 *
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241 * @param i the char value to box
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parents:
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242 * @return a boxed copy of {@code value}
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parents:
diff changeset
243 */
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diff changeset
244 public static Constant forChar(char i) {
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diff changeset
245 return new PrimitiveConstant(Kind.Char, i);
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diff changeset
246 }
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diff changeset
247
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parents:
diff changeset
248 /**
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diff changeset
249 * Creates a boxed short constant.
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diff changeset
250 *
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251 * @param i the short value to box
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parents:
diff changeset
252 * @return a boxed copy of {@code value}
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parents:
diff changeset
253 */
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diff changeset
254 public static Constant forShort(short i) {
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diff changeset
255 return new PrimitiveConstant(Kind.Short, i);
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diff changeset
256 }
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parents:
diff changeset
257
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parents:
diff changeset
258 /**
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diff changeset
259 * Creates a {@link Constant} from a primitive integer of a certain kind.
3733
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diff changeset
260 */
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diff changeset
261 public static Constant forIntegerKind(Kind kind, long i) {
7105
f1f32b695d1e Make constructors of Constant private to ensure proper encapuslation of the type-overloaded primitive field; reduce to one constructor that sets all fields.
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parents: 7103
diff changeset
262 switch (kind) {
f1f32b695d1e Make constructors of Constant private to ensure proper encapuslation of the type-overloaded primitive field; reduce to one constructor that sets all fields.
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diff changeset
263 case Int:
15018
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diff changeset
264 return new PrimitiveConstant(kind, (int) i);
7105
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diff changeset
265 case Long:
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diff changeset
266 return new PrimitiveConstant(kind, i);
7105
f1f32b695d1e Make constructors of Constant private to ensure proper encapuslation of the type-overloaded primitive field; reduce to one constructor that sets all fields.
Christian Wimmer <christian.wimmer@oracle.com>
parents: 7103
diff changeset
267 default:
f1f32b695d1e Make constructors of Constant private to ensure proper encapuslation of the type-overloaded primitive field; reduce to one constructor that sets all fields.
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parents: 7103
diff changeset
268 throw new IllegalArgumentException("not an integer kind: " + kind);
f1f32b695d1e Make constructors of Constant private to ensure proper encapuslation of the type-overloaded primitive field; reduce to one constructor that sets all fields.
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parents: 7103
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269 }
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270 }
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parents:
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271
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parents:
diff changeset
272 /**
14000
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273 * Creates a {@link Constant} from a primitive integer of a certain width.
958c99d0790c Split convert node into separate nodes for different conversions.
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diff changeset
274 */
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parents: 13726
diff changeset
275 public static Constant forPrimitiveInt(int bits, long i) {
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diff changeset
276 assert bits <= 64;
958c99d0790c Split convert node into separate nodes for different conversions.
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parents: 13726
diff changeset
277 if (bits > 32) {
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diff changeset
278 return new PrimitiveConstant(Kind.Long, i);
14000
958c99d0790c Split convert node into separate nodes for different conversions.
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diff changeset
279 } else {
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diff changeset
280 return new PrimitiveConstant(Kind.Int, (int) i);
14000
958c99d0790c Split convert node into separate nodes for different conversions.
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diff changeset
281 }
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Roland Schatz <roland.schatz@oracle.com>
parents: 13726
diff changeset
282 }
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Roland Schatz <roland.schatz@oracle.com>
parents: 13726
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283
958c99d0790c Split convert node into separate nodes for different conversions.
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parents: 13726
diff changeset
284 /**
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diff changeset
285 * Creates a boxed constant for the given boxed primitive value.
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diff changeset
286 *
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287 * @param value the Java boxed value
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diff changeset
288 * @return the primitive constant holding the {@code value}
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289 */
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diff changeset
290 public static Constant forBoxedPrimitive(Object value) {
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diff changeset
291 if (value instanceof Boolean) {
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diff changeset
292 return forBoolean((Boolean) value);
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 14563
diff changeset
293 } else if (value instanceof Byte) {
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diff changeset
294 return forByte((Byte) value);
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 14563
diff changeset
295 } else if (value instanceof Character) {
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Christian Wimmer <christian.wimmer@oracle.com>
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diff changeset
296 return forChar((Character) value);
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parents: 14563
diff changeset
297 } else if (value instanceof Short) {
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diff changeset
298 return forShort((Short) value);
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parents: 14563
diff changeset
299 } else if (value instanceof Integer) {
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
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diff changeset
300 return forInt((Integer) value);
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents: 14563
diff changeset
301 } else if (value instanceof Long) {
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 14563
diff changeset
302 return forLong((Long) value);
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 14563
diff changeset
303 } else if (value instanceof Float) {
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 14563
diff changeset
304 return forFloat((Float) value);
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 14563
diff changeset
305 } else if (value instanceof Double) {
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 14563
diff changeset
306 return forDouble((Double) value);
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 14563
diff changeset
307 } else {
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
Christian Wimmer <christian.wimmer@oracle.com>
parents: 14563
diff changeset
308 return null;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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309 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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310 }
7300
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parents: 7105
diff changeset
311
12617
bca33c3135de PEA: support for unsafe stores of mismatching sizes, cleanup, documentation
Lukas Stadler <lukas.stadler@jku.at>
parents: 11477
diff changeset
312 public static Constant forIllegal() {
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parents: 14563
diff changeset
313 return new PrimitiveConstant(Kind.Illegal, 0);
12617
bca33c3135de PEA: support for unsafe stores of mismatching sizes, cleanup, documentation
Lukas Stadler <lukas.stadler@jku.at>
parents: 11477
diff changeset
314 }
bca33c3135de PEA: support for unsafe stores of mismatching sizes, cleanup, documentation
Lukas Stadler <lukas.stadler@jku.at>
parents: 11477
diff changeset
315
7300
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diff changeset
316 /**
2912b72d840a More complete and reusable Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
317 * Returns a constant with the default value for the given kind.
2912b72d840a More complete and reusable Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
318 */
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parents: 7105
diff changeset
319 public static Constant defaultForKind(Kind kind) {
7530
5e3d1a68664e applied mx eclipseformat to all Java files
Doug Simon <doug.simon@oracle.com>
parents: 7300
diff changeset
320 switch (kind) {
7300
2912b72d840a More complete and reusable Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
321 case Boolean:
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
322 return FALSE;
2912b72d840a More complete and reusable Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
323 case Byte:
2912b72d840a More complete and reusable Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
324 return forByte((byte) 0);
2912b72d840a More complete and reusable Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
325 case Char:
2912b72d840a More complete and reusable Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
326 return forChar((char) 0);
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
327 case Short:
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
328 return forShort((short) 0);
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
329 case Int:
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parents: 7105
diff changeset
330 return INT_0;
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parents: 7105
diff changeset
331 case Double:
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
332 return DOUBLE_0;
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parents: 7105
diff changeset
333 case Float:
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
334 return FLOAT_0;
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
335 case Long:
2912b72d840a More complete and reusable Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
336 return LONG_0;
2912b72d840a More complete and reusable Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
337 case Object:
2912b72d840a More complete and reusable Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
338 return NULL_OBJECT;
2912b72d840a More complete and reusable Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
339 default:
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
340 throw new IllegalArgumentException(kind.toString());
2912b72d840a More complete and reusable Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
341 }
2912b72d840a More complete and reusable Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents: 7105
diff changeset
342 }
11477
4b41416685e9 New static factory methods for constants and arithmetic.
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parents: 7816
diff changeset
343
4b41416685e9 New static factory methods for constants and arithmetic.
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diff changeset
344 /**
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
345 * Returns the zero value for a given numeric kind.
4b41416685e9 New static factory methods for constants and arithmetic.
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parents: 7816
diff changeset
346 */
4b41416685e9 New static factory methods for constants and arithmetic.
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parents: 7816
diff changeset
347 public static Constant zero(Kind kind) {
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parents: 7816
diff changeset
348 switch (kind) {
4b41416685e9 New static factory methods for constants and arithmetic.
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parents: 7816
diff changeset
349 case Byte:
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parents: 7816
diff changeset
350 return forByte((byte) 0);
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parents: 7816
diff changeset
351 case Char:
4b41416685e9 New static factory methods for constants and arithmetic.
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parents: 7816
diff changeset
352 return forChar((char) 0);
4b41416685e9 New static factory methods for constants and arithmetic.
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parents: 7816
diff changeset
353 case Double:
4b41416685e9 New static factory methods for constants and arithmetic.
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parents: 7816
diff changeset
354 return DOUBLE_0;
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
355 case Float:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
356 return FLOAT_0;
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
357 case Int:
4b41416685e9 New static factory methods for constants and arithmetic.
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parents: 7816
diff changeset
358 return INT_0;
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
359 case Long:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
360 return LONG_0;
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
361 case Short:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
362 return forShort((short) 0);
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
363 default:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
364 throw new IllegalArgumentException(kind.toString());
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
365 }
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
366 }
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
367
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
368 /**
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
369 * Returns the one value for a given numeric kind.
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
370 */
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
371 public static Constant one(Kind kind) {
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
372 switch (kind) {
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
373 case Byte:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
374 return forByte((byte) 1);
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
375 case Char:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
376 return forChar((char) 1);
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
377 case Double:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
378 return DOUBLE_1;
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
379 case Float:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
380 return FLOAT_1;
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
381 case Int:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
382 return INT_1;
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
383 case Long:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
384 return LONG_1;
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
385 case Short:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
386 return forShort((short) 1);
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
387 default:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
388 throw new IllegalArgumentException(kind.toString());
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
389 }
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
390 }
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
391
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
392 /**
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
393 * Adds two numeric constants.
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
394 */
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
395 public static Constant add(Constant x, Constant y) {
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
396 assert x.getKind() == y.getKind();
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
397 switch (x.getKind()) {
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
398 case Byte:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
399 return forByte((byte) (x.asInt() + y.asInt()));
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
400 case Char:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
401 return forChar((char) (x.asInt() + y.asInt()));
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
402 case Double:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
403 return forDouble(x.asDouble() + y.asDouble());
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
404 case Float:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
405 return forFloat(x.asFloat() + y.asFloat());
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
406 case Int:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
407 return forInt(x.asInt() + y.asInt());
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
408 case Long:
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
409 return forLong(x.asLong() + y.asLong());
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
410 case Short:
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411 return forShort((short) (x.asInt() + y.asInt()));
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412 default:
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413 throw new IllegalArgumentException(x.getKind().toString());
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parents: 7816
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414 }
4b41416685e9 New static factory methods for constants and arithmetic.
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parents: 7816
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415 }
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
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416
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Roland Schatz <roland.schatz@oracle.com>
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417 /**
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Roland Schatz <roland.schatz@oracle.com>
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418 * Multiplies two numeric constants.
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419 */
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420 public static Constant mul(Constant x, Constant y) {
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421 assert x.getKind() == y.getKind();
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422 switch (x.getKind()) {
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423 case Byte:
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424 return forByte((byte) (x.asInt() * y.asInt()));
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425 case Char:
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426 return forChar((char) (x.asInt() * y.asInt()));
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427 case Double:
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428 return forDouble(x.asDouble() * y.asDouble());
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429 case Float:
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430 return forFloat(x.asFloat() * y.asFloat());
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431 case Int:
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432 return forInt(x.asInt() * y.asInt());
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433 case Long:
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434 return forLong(x.asLong() * y.asLong());
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435 case Short:
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Roland Schatz <roland.schatz@oracle.com>
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436 return forShort((short) (x.asInt() * y.asInt()));
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Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
437 default:
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Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
438 throw new IllegalArgumentException(x.getKind().toString());
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
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439 }
4b41416685e9 New static factory methods for constants and arithmetic.
Roland Schatz <roland.schatz@oracle.com>
parents: 7816
diff changeset
440 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
441 }