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annotate graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/PrimitiveConstant.java @ 21556:48c1ebd24120

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renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Wed, 27 May 2015 00:36:16 +0200
parents graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/PrimitiveConstant.java@082417ac43e4
children
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1 /*
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2 * Copyright (c) 2009, 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.jvmci.meta;
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24
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25 import java.nio.*;
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26
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27 /**
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28 * Represents a primitive constant value, such as an integer or floating point number, within the
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29 * compiler and across the compiler/runtime interface.
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30 */
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31 public class PrimitiveConstant extends AbstractValue implements JavaConstant, SerializableConstant {
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32
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33 /**
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34 * The boxed primitive value as a {@code long}. For {@code float} and {@code double} values,
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35 * this value is the result of {@link Float#floatToRawIntBits(float)} and
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36 * {@link Double#doubleToRawLongBits(double)} respectively.
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37 */
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38 private final long primitive;
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39
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40 protected PrimitiveConstant(Kind kind, long primitive) {
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41 super(LIRKind.value(kind));
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42 this.primitive = primitive;
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43
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44 assert kind.isPrimitive() || kind == Kind.Illegal;
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45 }
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46
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47 @Override
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48 public boolean isNull() {
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49 return false;
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50 }
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51
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52 @Override
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53 public boolean isDefaultForKind() {
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54 return primitive == 0;
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55 }
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56
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57 @Override
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58 public boolean asBoolean() {
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59 assert getKind() == Kind.Boolean;
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60 return primitive != 0L;
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61 }
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62
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63 @Override
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64 public int asInt() {
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65 assert getKind().getStackKind() == Kind.Int : getKind().getStackKind();
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66 return (int) primitive;
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67 }
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68
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69 @Override
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70 public long asLong() {
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71 assert getKind().isNumericInteger();
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72 return primitive;
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73 }
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74
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75 @Override
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76 public float asFloat() {
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77 assert getKind() == Kind.Float;
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78 return Float.intBitsToFloat((int) primitive);
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79 }
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80
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81 @Override
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82 public double asDouble() {
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83 assert getKind() == Kind.Double;
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84 return Double.longBitsToDouble(primitive);
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85 }
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86
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87 @Override
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88 public Object asBoxedPrimitive() {
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89 switch (getKind()) {
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90 case Byte:
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91 return Byte.valueOf((byte) primitive);
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92 case Boolean:
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93 return Boolean.valueOf(asBoolean());
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94 case Short:
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95 return Short.valueOf((short) primitive);
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96 case Char:
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97 return Character.valueOf((char) primitive);
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98 case Int:
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99 return Integer.valueOf(asInt());
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100 case Long:
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101 return Long.valueOf(asLong());
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102 case Float:
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103 return Float.valueOf(asFloat());
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104 case Double:
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105 return Double.valueOf(asDouble());
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106 default:
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107 throw new IllegalArgumentException("unexpected kind " + getKind());
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108 }
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109 }
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110
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111 @Override
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112 public int getSerializedSize() {
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113 return getKind().getByteCount();
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114 }
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115
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116 @Override
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117 public void serialize(ByteBuffer buffer) {
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118 switch (getKind()) {
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119 case Byte:
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120 case Boolean:
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121 buffer.put((byte) primitive);
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122 break;
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123 case Short:
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124 buffer.putShort((short) primitive);
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125 break;
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126 case Char:
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127 buffer.putChar((char) primitive);
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128 break;
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129 case Int:
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130 buffer.putInt(asInt());
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131 break;
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132 case Long:
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133 buffer.putLong(asLong());
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134 break;
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135 case Float:
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136 buffer.putFloat(asFloat());
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137 break;
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138 case Double:
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139 buffer.putDouble(asDouble());
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140 break;
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141 default:
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142 throw new IllegalArgumentException("unexpected kind " + getKind());
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143 }
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144 }
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145
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146 @Override
15018
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147 public int hashCode() {
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148 return (int) (primitive ^ (primitive >>> 32)) * (getKind().ordinal() + 31);
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149 }
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150
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151 @Override
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152 public boolean equals(Object o) {
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153 return o == this || (o instanceof PrimitiveConstant && super.equals(o) && primitive == ((PrimitiveConstant) o).primitive);
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154 }
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155
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156 @Override
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157 public String toString() {
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158 if (getKind() == Kind.Illegal) {
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159 return "illegal";
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160 } else {
17124
7b3ece800806 Using getKind().format is unnecessary
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161 return getKind().getJavaName() + "[" + asBoxedPrimitive() + "|0x" + Long.toHexString(primitive) + "]";
15018
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162 }
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163 }
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164 }