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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/type/StampFactory.java @ 7530:5e3d1a68664e

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applied mx eclipseformat to all Java files
author Doug Simon <doug.simon@oracle.com>
date Wed, 23 Jan 2013 16:34:57 +0100
parents 8461d937ac18
children 4e1278443941
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1 /*
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2 * Copyright (c) 2011, 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.nodes.type;
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24
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25 import com.oracle.graal.api.code.*;
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26 import com.oracle.graal.api.meta.*;
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27 import com.oracle.graal.graph.*;
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28 import com.oracle.graal.nodes.type.GenericStamp.GenericStampType;
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29
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30 public class StampFactory {
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31
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32 private static final Stamp[] stampCache = new Stamp[Kind.values().length];
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33 private static final Stamp objectStamp = new ObjectStamp(null, false, false, false);
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34 private static final Stamp objectNonNullStamp = new ObjectStamp(null, false, true, false);
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35 private static final Stamp objectAlwaysNullStamp = new ObjectStamp(null, false, false, true);
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36 private static final Stamp dependencyStamp = new GenericStamp(GenericStampType.Dependency);
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37 private static final Stamp extensionStamp = new GenericStamp(GenericStampType.Extension);
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38 private static final Stamp virtualStamp = new GenericStamp(GenericStampType.Virtual);
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39 private static final Stamp conditionStamp = new GenericStamp(GenericStampType.Condition);
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40 private static final Stamp voidStamp = new GenericStamp(GenericStampType.Void);
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41 private static final Stamp nodeIntrinsicStamp = new ObjectStamp(null, false, false, false);
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42 private static final Stamp wordStamp = new ObjectStamp(null, false, false, false);
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43 private static final Stamp positiveInt = forInteger(Kind.Int, 0, Integer.MAX_VALUE, Integer.MAX_VALUE);
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44
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45 private static void setCache(Kind kind, Stamp stamp) {
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46 stampCache[kind.ordinal()] = stamp;
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47 }
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48
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49 static {
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50 setCache(Kind.Boolean, new IntegerStamp(Kind.Boolean));
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51 setCache(Kind.Byte, new IntegerStamp(Kind.Byte));
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52 setCache(Kind.Short, new IntegerStamp(Kind.Short));
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53 setCache(Kind.Char, new IntegerStamp(Kind.Char));
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54 setCache(Kind.Int, new IntegerStamp(Kind.Int));
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55 setCache(Kind.Long, new IntegerStamp(Kind.Long));
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56
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57 setCache(Kind.Float, new FloatStamp(Kind.Float));
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58 setCache(Kind.Double, new FloatStamp(Kind.Double));
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59
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60 setCache(Kind.Jsr, new IntegerStamp(Kind.Jsr));
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61
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62 setCache(Kind.Object, objectStamp);
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63 setCache(Kind.Void, voidStamp);
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64 }
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65
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66 public static Stamp forKind(Kind kind) {
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67 assert stampCache[kind.ordinal()] != null : "unexpected forKind(" + kind + ")";
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68 return stampCache[kind.ordinal()];
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69 }
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70
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71 public static Stamp forVoid() {
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72 return voidStamp;
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73 }
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74
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75 /**
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76 * A stamp used only in the graph of intrinsics, e.g., snippets. It is then replaced by an
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77 * actual stamp when the intrinsic is used, i.e., when the snippet template is instantiated.
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78 */
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79 public static Stamp forNodeIntrinsic() {
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80 return nodeIntrinsicStamp;
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81 }
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82
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83 /**
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84 * A stamp used only in the graph of intrinsics, e.g., snippets. It is then replaced by the
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85 * actual primitive type stamp for the target-specific {@link TargetDescription#wordKind}.
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86 */
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87 public static Stamp forWord() {
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88 return wordStamp;
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89 }
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90
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91 public static Stamp intValue() {
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92 return forKind(Kind.Int);
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93 }
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94
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95 public static Stamp dependency() {
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96 return dependencyStamp;
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97 }
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98
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99 public static Stamp extension() {
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100 return extensionStamp;
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101 }
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102
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103 public static Stamp virtual() {
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104 return virtualStamp;
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105 }
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106
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107 public static Stamp condition() {
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108 return conditionStamp;
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109 }
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110
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111 public static Stamp positiveInt() {
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112 return positiveInt;
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113 }
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114
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115 public static Stamp forInteger(Kind kind, long lowerBound, long upperBound, long mask) {
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116 return new IntegerStamp(kind, lowerBound, upperBound, mask);
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117 }
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118
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119 public static Stamp forInteger(Kind kind, long lowerBound, long upperBound) {
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120 long mask;
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121 if (lowerBound < 0) {
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122 mask = IntegerStamp.defaultMask(kind);
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parents: 5831
diff changeset
123 } else {
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124 mask = -1 >>> Long.numberOfLeadingZeros(upperBound);
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parents: 5831
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125 }
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diff changeset
126 return forInteger(kind, lowerBound, upperBound, mask);
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127 }
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128
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129 public static Stamp forFloat(Kind kind, double lowerBound, double upperBound, boolean nonNaN) {
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130 return new FloatStamp(kind, lowerBound, upperBound, nonNaN);
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131 }
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132
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e18ba36bfebc Renamed RiConstant => Constant.
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133 public static Stamp forConstant(Constant value) {
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134 assert value.getKind() != Kind.Object;
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135 if (value.getKind() == Kind.Object) {
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136 throw new GraalInternalError("unexpected kind: %s", value.getKind());
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137 } else {
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138 if (value.getKind() == Kind.Int || value.getKind() == Kind.Long) {
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139 return forInteger(value.getKind(), value.asLong(), value.asLong(), value.asLong() & IntegerStamp.defaultMask(value.getKind()));
7103
0c59b76e6689 Eliminate bogus conversion that Constant.asLong() performed; simplify asXxx methods so that they do not have control flow.
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parents: 7034
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140 } else if (value.getKind() == Kind.Float) {
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parents: 7034
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141 return forFloat(value.getKind(), value.asFloat(), value.asFloat(), !Float.isNaN(value.asFloat()));
0c59b76e6689 Eliminate bogus conversion that Constant.asLong() performed; simplify asXxx methods so that they do not have control flow.
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parents: 7034
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142 } else if (value.getKind() == Kind.Double) {
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parents: 5874
diff changeset
143 return forFloat(value.getKind(), value.asDouble(), value.asDouble(), !Double.isNaN(value.asDouble()));
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144 }
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 6406
diff changeset
145 return forKind(value.getKind().getStackKind());
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parents: 5061
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146 }
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147 }
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parents:
diff changeset
148
5629
26a060cc58ca Initial implementation of closed world analysis by iteratively expanding the universe starting at method entry points.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5541
diff changeset
149 public static Stamp forConstant(Constant value, MetaAccessProvider runtime) {
6329
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parents: 5874
diff changeset
150 assert value.getKind() == Kind.Object;
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parents: 5874
diff changeset
151 if (value.getKind() == Kind.Object) {
6539
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Christian Wimmer <christian.wimmer@oracle.com>
parents: 6406
diff changeset
152 ResolvedJavaType type = value.isNull() ? null : runtime.lookupJavaType(value);
5831
ed08c40d67de Add a alwaysNull property to ObjectStamp (Phi(null, a! A) get a "a A" stamp and not just "a -")
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 5830
diff changeset
153 return new ObjectStamp(type, value.isNonNull(), value.isNonNull(), value.isNull());
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parents:
diff changeset
154 } else {
6329
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parents: 5874
diff changeset
155 throw new GraalInternalError(Kind.Object + " expected, actual kind: %s", value.getKind());
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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
5443
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Lukas Stadler <lukas.stadler@jku.at>
parents: 5390
diff changeset
159 public static Stamp object() {
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parents: 5390
diff changeset
160 return objectStamp;
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parents: 5390
diff changeset
161 }
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Lukas Stadler <lukas.stadler@jku.at>
parents: 5390
diff changeset
162
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parents:
diff changeset
163 public static Stamp objectNonNull() {
5443
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parents: 5390
diff changeset
164 return objectNonNullStamp;
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parents:
diff changeset
165 }
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parents:
diff changeset
166
5831
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Gilles Duboscq <duboscq@ssw.jku.at>
parents: 5830
diff changeset
167 public static Stamp alwaysNull() {
ed08c40d67de Add a alwaysNull property to ObjectStamp (Phi(null, a! A) get a "a A" stamp and not just "a -")
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 5830
diff changeset
168 return objectAlwaysNullStamp;
ed08c40d67de Add a alwaysNull property to ObjectStamp (Phi(null, a! A) get a "a A" stamp and not just "a -")
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 5830
diff changeset
169 }
ed08c40d67de Add a alwaysNull property to ObjectStamp (Phi(null, a! A) get a "a A" stamp and not just "a -")
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parents: 5830
diff changeset
170
5541
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5540
diff changeset
171 public static Stamp declared(ResolvedJavaType type) {
5443
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parents: 5390
diff changeset
172 return declared(type, false);
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Lukas Stadler <lukas.stadler@jku.at>
parents: 5390
diff changeset
173 }
141817e206d4 changes to the dependencies and stamp system:
Lukas Stadler <lukas.stadler@jku.at>
parents: 5390
diff changeset
174
5541
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5540
diff changeset
175 public static Stamp declaredNonNull(ResolvedJavaType type) {
5443
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parents: 5390
diff changeset
176 return declared(type, true);
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Lukas Stadler <lukas.stadler@jku.at>
parents: 5390
diff changeset
177 }
141817e206d4 changes to the dependencies and stamp system:
Lukas Stadler <lukas.stadler@jku.at>
parents: 5390
diff changeset
178
5541
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5540
diff changeset
179 public static Stamp declared(ResolvedJavaType type, boolean nonNull) {
7031
2e577202843c Better implementation of UnsafeCastNode
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6954
diff changeset
180 return object(type, false, nonNull);
2e577202843c Better implementation of UnsafeCastNode
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6954
diff changeset
181 }
2e577202843c Better implementation of UnsafeCastNode
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6954
diff changeset
182
2e577202843c Better implementation of UnsafeCastNode
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6954
diff changeset
183 public static Stamp object(ResolvedJavaType type, boolean exactType, boolean nonNull) {
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
184 assert type != null;
6539
2463eb24b644 Cleanup of Graal API: Rename methods so that it follows the getXxx naming convention and so that they are similar to the names of the java.lang.reflect classes. Remove unused methods.
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6406
diff changeset
185 assert type.getKind() == Kind.Object;
6950
41938af2b3d8 modifications to support non-perm-gen changes in HotSpot
Doug Simon <doug.simon@oracle.com>
parents: 6539
diff changeset
186 ResolvedJavaType exact = type.asExactType();
5443
141817e206d4 changes to the dependencies and stamp system:
Lukas Stadler <lukas.stadler@jku.at>
parents: 5390
diff changeset
187 if (exact != null) {
7031
2e577202843c Better implementation of UnsafeCastNode
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6954
diff changeset
188 assert !exactType || type == exact;
5831
ed08c40d67de Add a alwaysNull property to ObjectStamp (Phi(null, a! A) get a "a A" stamp and not just "a -")
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 5830
diff changeset
189 return new ObjectStamp(exact, true, nonNull, false);
5443
141817e206d4 changes to the dependencies and stamp system:
Lukas Stadler <lukas.stadler@jku.at>
parents: 5390
diff changeset
190 } else {
7031
2e577202843c Better implementation of UnsafeCastNode
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6954
diff changeset
191 return new ObjectStamp(type, exactType, nonNull, false);
5443
141817e206d4 changes to the dependencies and stamp system:
Lukas Stadler <lukas.stadler@jku.at>
parents: 5390
diff changeset
192 }
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
193 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
194
5541
b4c406861c33 More renamings to drop Ri* prefix completely. Deleted graph.BitMap class and replaced with java.util.BitSet.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5540
diff changeset
195 public static Stamp exactNonNull(ResolvedJavaType type) {
5831
ed08c40d67de Add a alwaysNull property to ObjectStamp (Phi(null, a! A) get a "a A" stamp and not just "a -")
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 5830
diff changeset
196 return new ObjectStamp(type, true, true, false);
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
197 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
198 }