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annotate graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/PrimitiveConstant.java @ 21023:3ceda1f37dcc

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[SPARC] Remove redundant compare type (kind) for CMOVE
author Stefan Anzinger <stefan.anzinger@oracle.com>
date Mon, 20 Apr 2015 14:58:45 +0200
parents ef51dadd50f7
children 082417ac43e4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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.graal.api.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 private static final long serialVersionUID = 8787949721295655376L;
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34
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35 /**
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36 * The boxed primitive value as a {@code long}. For {@code float} and {@code double} values,
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37 * this value is the result of {@link Float#floatToRawIntBits(float)} and
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38 * {@link Double#doubleToRawLongBits(double)} respectively.
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39 */
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40 private final long primitive;
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41
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42 protected PrimitiveConstant(Kind kind, long primitive) {
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43 super(LIRKind.value(kind));
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44 this.primitive = primitive;
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45
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46 assert kind.isPrimitive() || kind == Kind.Illegal;
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47 }
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48
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49 @Override
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50 public boolean isNull() {
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51 return false;
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52 }
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53
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54 @Override
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55 public boolean isDefaultForKind() {
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56 return primitive == 0;
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57 }
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58
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59 @Override
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60 public boolean asBoolean() {
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61 assert getKind() == Kind.Boolean;
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62 return primitive != 0L;
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63 }
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64
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65 @Override
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66 public int asInt() {
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3ceda1f37dcc [SPARC] Remove redundant compare type (kind) for CMOVE
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67 assert getKind().getStackKind() == Kind.Int : getKind().getStackKind();
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68 return (int) primitive;
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69 }
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70
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71 @Override
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72 public long asLong() {
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73 assert getKind().isNumericInteger();
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74 return primitive;
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75 }
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76
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77 @Override
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78 public float asFloat() {
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79 assert getKind() == Kind.Float;
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80 return Float.intBitsToFloat((int) primitive);
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81 }
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82
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83 @Override
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84 public double asDouble() {
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85 assert getKind() == Kind.Double;
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86 return Double.longBitsToDouble(primitive);
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87 }
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88
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89 @Override
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90 public Object asBoxedPrimitive() {
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91 switch (getKind()) {
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92 case Byte:
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93 return Byte.valueOf((byte) primitive);
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94 case Boolean:
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95 return Boolean.valueOf(asBoolean());
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96 case Short:
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97 return Short.valueOf((short) primitive);
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98 case Char:
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99 return Character.valueOf((char) primitive);
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100 case Int:
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101 return Integer.valueOf(asInt());
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102 case Long:
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103 return Long.valueOf(asLong());
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104 case Float:
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105 return Float.valueOf(asFloat());
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106 case Double:
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107 return Double.valueOf(asDouble());
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108 default:
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109 throw new IllegalArgumentException("unexpected kind " + getKind());
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110 }
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111 }
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112
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113 @Override
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114 public int getSerializedSize() {
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115 return getKind().getByteCount();
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116 }
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117
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118 @Override
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119 public void serialize(ByteBuffer buffer) {
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120 switch (getKind()) {
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121 case Byte:
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122 case Boolean:
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123 buffer.put((byte) primitive);
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124 break;
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125 case Short:
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126 buffer.putShort((short) primitive);
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127 break;
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128 case Char:
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129 buffer.putChar((char) primitive);
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130 break;
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131 case Int:
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132 buffer.putInt(asInt());
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133 break;
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134 case Long:
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135 buffer.putLong(asLong());
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136 break;
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137 case Float:
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138 buffer.putFloat(asFloat());
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139 break;
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140 case Double:
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141 buffer.putDouble(asDouble());
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142 break;
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143 default:
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144 throw new IllegalArgumentException("unexpected kind " + getKind());
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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 int hashCode() {
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150 return (int) (primitive ^ (primitive >>> 32)) * (getKind().ordinal() + 31);
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151 }
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152
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153 @Override
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154 public boolean equals(Object o) {
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155 return o == this || (o instanceof PrimitiveConstant && super.equals(o) && primitive == ((PrimitiveConstant) o).primitive);
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156 }
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157
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158 @Override
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159 public String toString() {
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160 if (getKind() == Kind.Illegal) {
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161 return "illegal";
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162 } else {
17124
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163 return getKind().getJavaName() + "[" + asBoxedPrimitive() + "|0x" + Long.toHexString(primitive) + "]";
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164 }
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165 }
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166 }