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annotate graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiConstant.java @ 5502:13aee5aba8cc

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Moved RiConstant to cri.ri package.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Thu, 07 Jun 2012 17:07:42 +0200
parents graal/com.oracle.max.cri/src/com/oracle/max/cri/ci/RiConstant.java@d89b20486d87
children 438ab53efdd0
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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.max.cri.ri;
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24
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25 import com.oracle.max.cri.ci.*;
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27 /**
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28 * Represents a constant (boxed) value, such as an integer, floating point number, or object reference,
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29 * within the compiler and across the compiler/runtime interface. Exports a set of {@code CiConstant}
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30 * instances that represent frequently used constant values, such as {@link #ZERO}.
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31 */
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32 public final class RiConstant extends CiValue {
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33 private static final long serialVersionUID = -6355452536852663986L;
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34
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35 private static final RiConstant[] INT_CONSTANT_CACHE = new RiConstant[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 RiConstant(CiKind.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 RiConstant NULL_OBJECT = new RiConstant(CiKind.Object, null);
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43 public static final RiConstant INT_MINUS_1 = new RiConstant(CiKind.Int, -1);
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44 public static final RiConstant INT_0 = forInt(0);
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45 public static final RiConstant INT_1 = forInt(1);
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46 public static final RiConstant INT_2 = forInt(2);
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47 public static final RiConstant INT_3 = forInt(3);
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48 public static final RiConstant INT_4 = forInt(4);
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49 public static final RiConstant INT_5 = forInt(5);
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50 public static final RiConstant LONG_0 = new RiConstant(CiKind.Long, 0L);
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51 public static final RiConstant LONG_1 = new RiConstant(CiKind.Long, 1L);
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52 public static final RiConstant FLOAT_0 = new RiConstant(CiKind.Float, Float.floatToRawIntBits(0.0F));
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53 public static final RiConstant FLOAT_1 = new RiConstant(CiKind.Float, Float.floatToRawIntBits(1.0F));
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54 public static final RiConstant FLOAT_2 = new RiConstant(CiKind.Float, Float.floatToRawIntBits(2.0F));
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55 public static final RiConstant DOUBLE_0 = new RiConstant(CiKind.Double, Double.doubleToRawLongBits(0.0D));
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56 public static final RiConstant DOUBLE_1 = new RiConstant(CiKind.Double, Double.doubleToRawLongBits(1.0D));
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57 public static final RiConstant TRUE = new RiConstant(CiKind.Boolean, 1L);
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58 public static final RiConstant FALSE = new RiConstant(CiKind.Boolean, 0L);
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59
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60 static {
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61 assert NULL_OBJECT.isDefaultValue();
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62 assert INT_0.isDefaultValue();
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63 assert FLOAT_0.isDefaultValue();
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64 assert DOUBLE_0.isDefaultValue();
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65 assert FALSE.isDefaultValue();
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66
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67 // Ensure difference between 0.0f and -0.0f is preserved
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68 assert FLOAT_0 != forFloat(-0.0F);
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69 assert !forFloat(-0.0F).isDefaultValue();
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70
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71 // Ensure difference between 0.0d and -0.0d is preserved
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72 assert DOUBLE_0 != forDouble(-0.0d);
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73 assert !forDouble(-0.0D).isDefaultValue();
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74
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75 assert NULL_OBJECT.isNull();
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76 }
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77
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78 /**
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79 * The boxed object value. This is ignored iff {@code !kind.isObject()}.
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80 */
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81 private final Object object;
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82
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83 /**
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84 * The boxed primitive value as a {@code long}. This is ignored iff {@code kind.isObject()}.
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85 * For {@code float} and {@code double} values, this value is the result of
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86 * {@link Float#floatToRawIntBits(float)} and {@link Double#doubleToRawLongBits(double)} respectively.
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87 */
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88 private final long primitive;
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89
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90 /**
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91 * Create a new constant represented by the specified object reference.
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92 *
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93 * @param kind the type of this constant
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94 * @param object the value of this constant
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95 */
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96 private RiConstant(CiKind kind, Object object) {
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97 super(kind);
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98 this.object = object;
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99 this.primitive = 0L;
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100 }
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101
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102 /**
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103 * Create a new constant represented by the specified primitive.
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104 *
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105 * @param kind the type of this constant
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106 * @param primitive the value of this constant
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107 */
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108 public RiConstant(CiKind kind, long primitive) {
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109 super(kind);
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110 this.object = null;
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111 this.primitive = primitive;
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112 }
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113
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114 /**
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115 * Checks whether this constant is non-null.
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116 * @return {@code true} if this constant is a primitive, or an object constant that is not null
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117 */
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118 public boolean isNonNull() {
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119 return !kind.isObject() || object != null;
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120 }
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121
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122 /**
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123 * Checks whether this constant is null.
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124 * @return {@code true} if this constant is the null constant
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125 */
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126 public boolean isNull() {
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127 return kind.isObject() && object == null;
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128 }
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129
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130 @Override
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131 public String toString() {
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132 return kind.javaName + "[" + kind.format(boxedValue()) + (kind != CiKind.Object ? "|0x" + Long.toHexString(primitive) : "") + "]";
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133 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
134
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
135 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
136 * Gets this constant's value as a string.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
137 *
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
138 * @return this constant's value as a string
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
139 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
140 public String valueString() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
141 if (kind.isPrimitive()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
142 return boxedValue().toString();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
143 } else if (kind.isObject()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
144 if (object == null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
145 return "null";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
146 } else if (object instanceof String) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
147 return "\"" + object + "\"";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
148 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
149 return "<object: " + kind.format(object) + ">";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
150 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
151 } else if (kind.isJsr()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
152 return "bci:" + boxedValue().toString();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
153 } else {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
154 return "???";
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
155 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
156 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
157
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
158 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
159 * Returns the value of this constant as a boxed Java value.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
160 * @return the value of this constant
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
161 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
162 public Object boxedValue() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
163 // Checkstyle: stop
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
164 switch (kind) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
165 case Byte: return (byte) asInt();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
166 case Boolean: return asInt() == 0 ? Boolean.FALSE : Boolean.TRUE;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
167 case Short: return (short) asInt();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
168 case Char: return (char) asInt();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
169 case Jsr: return (int) primitive;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
170 case Int: return asInt();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
171 case Long: return asLong();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
172 case Float: return asFloat();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
173 case Double: return asDouble();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
174 case Object: return object;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
175 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
176 // Checkstyle: resume
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
177 throw new IllegalArgumentException();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
178 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
179
5501
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
180 private boolean valueEqual(RiConstant other, boolean ignoreKind) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
181 // must have equivalent kinds to be equal
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
182 if (!ignoreKind && kind != other.kind) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
183 return false;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
184 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
185 if (kind.isObject()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
186 return object == other.object;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
187 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
188 return primitive == other.primitive;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
189 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
190
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
191 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
192 * Converts this constant to a primitive int.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
193 * @return the int value of this constant
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
194 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
195 public int asInt() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
196 if (kind.stackKind().isInt() || kind.isJsr()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
197 return (int) primitive;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
198 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
199 throw new Error("Constant is not int: " + this);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
200 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
201
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
202 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
203 * Converts this constant to a primitive boolean.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
204 * @return the boolean value of this constant
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
205 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
206 public boolean asBoolean() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
207 if (kind == CiKind.Boolean) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
208 return primitive != 0L;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
209 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
210 throw new Error("Constant is not boolean: " + this);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
211 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
212
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
213 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
214 * Converts this constant to a primitive long.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
215 * @return the long value of this constant
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
216 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
217 public long asLong() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
218 // Checkstyle: stop
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
219 switch (kind.stackKind()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
220 case Jsr:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
221 case Int:
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
222 case Long: return primitive;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
223 case Float: return (long) asFloat();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
224 case Double: return (long) asDouble();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
225 default: throw new Error("Constant is not long: " + this);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
226 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
227 // Checkstyle: resume
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
228 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
229
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
230 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
231 * Converts this constant to a primitive float.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
232 * @return the float value of this constant
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
233 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
234 public float asFloat() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
235 if (kind.isFloat()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
236 return Float.intBitsToFloat((int) primitive);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
237 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
238 throw new Error("Constant is not float: " + this);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
239 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
240
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
241 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
242 * Converts this constant to a primitive double.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
243 * @return the double value of this constant
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
244 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
245 public double asDouble() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
246 if (kind.isFloat()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
247 return Float.intBitsToFloat((int) primitive);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
248 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
249 if (kind.isDouble()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
250 return Double.longBitsToDouble(primitive);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
251 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
252 throw new Error("Constant is not double: " + this);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
253 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
254
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
255 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
256 * Converts this constant to the object reference it represents.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
257 * @return the object which this constant represents
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
258 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
259 public Object asObject() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
260 if (kind.isObject()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
261 return object;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
262 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
263 throw new Error("Constant is not object: " + this);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
264 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
265
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
266 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
267 * Converts this constant to the jsr reference it represents.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
268 * @return the object which this constant represents
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
269 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
270 public int asJsr() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
271 if (kind.isJsr()) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
272 return (int) primitive;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
273 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
274 throw new Error("Constant is not jsr: " + this);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
275 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
276
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
277 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
278 * Unchecked access to a primitive value.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
279 * @return
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
280 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
281 public long asPrimitive() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
282 if (kind.isObject()) {
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parents:
diff changeset
283 throw new Error("Constant is not primitive: " + this);
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parents:
diff changeset
284 }
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parents:
diff changeset
285 return primitive;
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parents:
diff changeset
286 }
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parents:
diff changeset
287
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
288 /**
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
289 * Computes the hashcode of this constant.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
290 * @return a suitable hashcode for this constant
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
291 */
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
292 @Override
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parents:
diff changeset
293 public int hashCode() {
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parents:
diff changeset
294 if (kind.isObject()) {
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parents:
diff changeset
295 return System.identityHashCode(object);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
296 }
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parents:
diff changeset
297 return (int) primitive;
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parents:
diff changeset
298 }
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parents:
diff changeset
299
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
300 /**
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
301 * Checks whether this constant equals another object. This is only
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
302 * true if the other object is a constant and has the same value.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
303 * @param o the object to compare equality
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
304 * @return {@code true} if this constant is equivalent to the specified object
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
305 */
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
306 @Override
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
307 public boolean equals(Object o) {
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d89b20486d87 Renaming CiConstant => RiConstant.
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parents: 5428
diff changeset
308 return o == this || o instanceof RiConstant && valueEqual((RiConstant) o, false);
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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diff changeset
309 }
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parents:
diff changeset
310
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
311 /**
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
312 * Checks whether this constant is identical to another constant or has the same value as it.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
313 * @param other the constant to compare for equality against this constant
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
314 * @return {@code true} if this constant is equivalent to {@code other}
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
315 */
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diff changeset
316 public boolean equivalent(RiConstant other) {
3733
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diff changeset
317 return other == this || valueEqual(other, false);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
318 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
319
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
320 /**
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
321 * Checks whether this constant is the default value for its type.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
322 * @return {@code true} if the value is the default value for its type; {@code false} otherwise
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
323 */
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
324 public boolean isDefaultValue() {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
325 // Checkstyle: stop
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
326 switch (kind.stackKind()) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
327 case Int: return asInt() == 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
328 case Long: return asLong() == 0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
329 case Float: return this == FLOAT_0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
330 case Double: return this == DOUBLE_0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
331 case Object: return object == null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
332 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
333 // Checkstyle: resume
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
334 throw new IllegalArgumentException("Cannot det default CiConstant for kind " + kind);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
335 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
336
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
337 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
338 * Gets the default value for a given kind.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
339 *
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
340 * @return the default value for {@code kind}'s {@linkplain CiKind#stackKind() stack kind}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
341 */
5501
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
342 public static RiConstant defaultValue(CiKind kind) {
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
343 // Checkstyle: stop
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
344 switch (kind.stackKind()) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
345 case Int: return INT_0;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
346 case Long: return LONG_0;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
347 case Float: return FLOAT_0;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
348 case Double: return DOUBLE_0;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
349 case Object: return NULL_OBJECT;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
350 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
351 // Checkstyle: resume
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
352 throw new IllegalArgumentException("Cannot get default CiConstant for kind " + kind);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
353 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
354
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
355 /**
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
356 * Creates a boxed double constant.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
357 * @param d the double value to box
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
358 * @return a boxed copy of {@code value}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
359 */
5501
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
360 public static RiConstant forDouble(double d) {
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
361 if (Double.compare(0.0D, d) == 0) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
362 return DOUBLE_0;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
363 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
364 if (Double.compare(d, 1.0D) == 0) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
365 return DOUBLE_1;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
366 }
5501
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
367 return new RiConstant(CiKind.Double, Double.doubleToRawLongBits(d));
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
368 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
369
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
370 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
371 * Creates a boxed float constant.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
372 * @param f the float value to box
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
373 * @return a boxed copy of {@code value}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
374 */
5501
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
375 public static RiConstant forFloat(float f) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
376 if (Float.compare(f, 0.0F) == 0) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
377 return FLOAT_0;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
378 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
379 if (Float.compare(f, 1.0F) == 0) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
380 return FLOAT_1;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
381 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
382 if (Float.compare(f, 2.0F) == 0) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
383 return FLOAT_2;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
384 }
5501
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
385 return new RiConstant(CiKind.Float, Float.floatToRawIntBits(f));
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
386 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
387
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
388 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
389 * Creates a boxed long constant.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
390 * @param i the long value to box
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
391 * @return a boxed copy of {@code value}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
392 */
5501
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
393 public static RiConstant forLong(long i) {
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
394 return i == 0 ? LONG_0 : i == 1 ? LONG_1 : new RiConstant(CiKind.Long, i);
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
395 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
396
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
397 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
398 * Creates a boxed integer constant.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
399 * @param i the integer value to box
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
400 * @return a boxed copy of {@code value}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
401 */
5501
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
402 public static RiConstant forInt(int i) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
403 if (i == -1) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
404 return INT_MINUS_1;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
405 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
406 if (i >= 0 && i < INT_CONSTANT_CACHE.length) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
407 return INT_CONSTANT_CACHE[i];
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
408 }
5501
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
409 return new RiConstant(CiKind.Int, i);
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
410 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
411
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
412 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
413 * Creates a boxed byte constant.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
414 * @param i the byte value to box
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
415 * @return a boxed copy of {@code value}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
416 */
5501
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
417 public static RiConstant forByte(byte i) {
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
418 return new RiConstant(CiKind.Byte, i);
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
419 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
420
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
421 /**
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
422 * Creates a boxed boolean constant.
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
423 * @param i the boolean value to box
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
424 * @return a boxed copy of {@code value}
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
425 */
5501
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
426 public static RiConstant forBoolean(boolean i) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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427 return i ? TRUE : FALSE;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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428 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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429
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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430 /**
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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431 * Creates a boxed char constant.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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432 * @param i the char value to box
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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433 * @return a boxed copy of {@code value}
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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434 */
5501
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
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435 public static RiConstant forChar(char i) {
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
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436 return new RiConstant(CiKind.Char, i);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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437 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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438
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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439 /**
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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440 * Creates a boxed short constant.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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441 * @param i the short value to box
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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442 * @return a boxed copy of {@code value}
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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443 */
5501
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
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444 public static RiConstant forShort(short i) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
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445 return new RiConstant(CiKind.Short, i);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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446 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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447
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
448 /**
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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449 * Creates a boxed address (jsr/ret address) constant.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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450 * @param i the address value to box
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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451 * @return a boxed copy of {@code value}
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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452 */
5501
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
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453 public static RiConstant forJsr(int i) {
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
454 return new RiConstant(CiKind.Jsr, i);
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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455 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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456
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
457 /**
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
458 * Creates a boxed object constant.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
459 * @param o the object value to box
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
460 * @return a boxed copy of {@code value}
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
461 */
5501
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
462 public static RiConstant forObject(Object o) {
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
463 if (o == null) {
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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464 return NULL_OBJECT;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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465 }
5501
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
466 return new RiConstant(CiKind.Object, o);
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
467 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
468
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
469 /**
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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470 * Creates a boxed constant for the given kind from an Object.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
471 * The object needs to be of the Java boxed type corresponding to the kind.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
472 * @param kind the kind of the constant to create
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
473 * @param value the Java boxed value: a Byte instance for CiKind Byte, etc.
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
474 * @return the boxed copy of {@code value}
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
475 */
5501
d89b20486d87 Renaming CiConstant => RiConstant.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5428
diff changeset
476 public static RiConstant forBoxed(CiKind kind, Object value) {
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
477 switch (kind) {
5428
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents: 4199
diff changeset
478 case Boolean:
6ec0857cdf46 added support for snippet templates which are snippet graphs specialized by binding a constant to at least one of the snippet's parameters
Doug Simon <doug.simon@oracle.com>
parents: 4199
diff changeset
479 return forBoolean((Boolean) value);
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
480 case Byte:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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481 return forByte((Byte) value);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
482 case Char:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
483 return forChar((Character) value);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
484 case Short:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
485 return forShort((Short) value);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
486 case Int:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
487 return forInt((Integer) value);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
488 case Long:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
489 return forLong((Long) value);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
490 case Float:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
491 return forFloat((Float) value);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
492 case Double:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
493 return forDouble((Double) value);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
494 case Object:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
495 return forObject(value);
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
496 default:
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
497 throw new RuntimeException("cannot create CiConstant for boxed " + kind + " value");
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
498 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
499 }
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
500 }