1 /*
2 * Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package org.graalvm.compiler.replacements;
24
25 import static org.graalvm.compiler.core.common.GraalOptions.ImmutableCode;
26 import static org.graalvm.compiler.core.common.GraalOptions.SnippetCounters;
27 import static org.graalvm.compiler.replacements.SnippetTemplate.DEFAULT_REPLACER;
28
29 import java.util.EnumMap;
30
31 import org.graalvm.compiler.api.replacements.Snippet;
32 import org.graalvm.compiler.api.replacements.SnippetReflectionProvider;
33 import org.graalvm.compiler.core.common.type.StampFactory;
34 import org.graalvm.compiler.debug.Debug;
35 import org.graalvm.compiler.nodes.ConstantNode;
36 import org.graalvm.compiler.nodes.PiNode;
37 import org.graalvm.compiler.nodes.ValueNode;
38 import org.graalvm.compiler.nodes.calc.FloatingNode;
39 import org.graalvm.compiler.nodes.extended.BoxNode;
40 import org.graalvm.compiler.nodes.extended.UnboxNode;
41 import org.graalvm.compiler.nodes.spi.LoweringTool;
42 import org.graalvm.compiler.phases.util.Providers;
43 import org.graalvm.compiler.replacements.SnippetTemplate.AbstractTemplates;
44 import org.graalvm.compiler.replacements.SnippetTemplate.Arguments;
45 import org.graalvm.compiler.replacements.SnippetTemplate.SnippetInfo;
46
47 import jdk.vm.ci.code.TargetDescription;
48 import jdk.vm.ci.meta.ConstantReflectionProvider;
49 import jdk.vm.ci.meta.JavaConstant;
50 import jdk.vm.ci.meta.JavaKind;
51 import jdk.vm.ci.meta.MetaAccessProvider;
52
53 public class BoxingSnippets implements Snippets {
54
55 @Snippet
56 public static Object booleanValueOf(boolean value) {
57 valueOfCounter.inc();
58 return PiNode.piCast(Boolean.valueOf(value), StampFactory.forNodeIntrinsic());
59 }
60
61 @Snippet
62 public static Object byteValueOf(byte value) {
63 valueOfCounter.inc();
64 return PiNode.piCast(Byte.valueOf(value), StampFactory.forNodeIntrinsic());
65 }
66
67 @Snippet
68 public static Object charValueOf(char value) {
69 valueOfCounter.inc();
70 return PiNode.piCast(Character.valueOf(value), StampFactory.forNodeIntrinsic());
71 }
72
73 @Snippet
74 public static Object doubleValueOf(double value) {
75 valueOfCounter.inc();
76 return PiNode.piCast(Double.valueOf(value), StampFactory.forNodeIntrinsic());
77 }
78
79 @Snippet
80 public static Object floatValueOf(float value) {
81 valueOfCounter.inc();
82 return PiNode.piCast(Float.valueOf(value), StampFactory.forNodeIntrinsic());
83 }
84
85 @Snippet
86 public static Object intValueOf(int value) {
87 valueOfCounter.inc();
88 return PiNode.piCast(Integer.valueOf(value), StampFactory.forNodeIntrinsic());
89 }
90
91 @Snippet
92 public static Object longValueOf(long value) {
93 valueOfCounter.inc();
94 return PiNode.piCast(Long.valueOf(value), StampFactory.forNodeIntrinsic());
95 }
96
97 @Snippet
98 public static Object shortValueOf(short value) {
99 valueOfCounter.inc();
100 return PiNode.piCast(Short.valueOf(value), StampFactory.forNodeIntrinsic());
101 }
102
103 @Snippet
104 public static boolean booleanValue(Boolean value) {
105 valueOfCounter.inc();
106 return value.booleanValue();
107 }
108
109 @Snippet
110 public static byte byteValue(Byte value) {
111 valueOfCounter.inc();
112 return value.byteValue();
113 }
114
115 @Snippet
116 public static char charValue(Character value) {
117 valueOfCounter.inc();
118 return value.charValue();
119 }
120
121 @Snippet
122 public static double doubleValue(Double value) {
123 valueOfCounter.inc();
124 return value.doubleValue();
125 }
126
127 @Snippet
128 public static float floatValue(Float value) {
129 valueOfCounter.inc();
130 return value.floatValue();
131 }
132
133 @Snippet
134 public static int intValue(Integer value) {
135 valueOfCounter.inc();
136 return value.intValue();
137 }
138
139 @Snippet
140 public static long longValue(Long value) {
141 valueOfCounter.inc();
142 return value.longValue();
143 }
144
145 @Snippet
146 public static short shortValue(Short value) {
147 valueOfCounter.inc();
148 return value.shortValue();
149 }
150
151 public static FloatingNode canonicalizeBoxing(BoxNode box, MetaAccessProvider metaAccess, ConstantReflectionProvider constantReflection) {
152 ValueNode value = box.getValue();
153 if (value.isConstant()) {
154 JavaConstant sourceConstant = value.asJavaConstant();
155 if (sourceConstant.getJavaKind() != box.getBoxingKind() && sourceConstant.getJavaKind().isNumericInteger()) {
156 switch (box.getBoxingKind()) {
157 case Boolean:
158 sourceConstant = JavaConstant.forBoolean(sourceConstant.asLong() != 0L);
159 break;
160 case Byte:
161 sourceConstant = JavaConstant.forByte((byte) sourceConstant.asLong());
162 break;
163 case Char:
164 sourceConstant = JavaConstant.forChar((char) sourceConstant.asLong());
165 break;
166 case Short:
167 sourceConstant = JavaConstant.forShort((short) sourceConstant.asLong());
168 break;
169 }
170 }
171 JavaConstant boxedConstant = constantReflection.boxPrimitive(sourceConstant);
172 if (boxedConstant != null && sourceConstant.getJavaKind() == box.getBoxingKind()) {
173 return ConstantNode.forConstant(boxedConstant, metaAccess, box.graph());
174 }
175 }
176 return null;
177 }
178
179 public static class Templates extends AbstractTemplates {
180
181 private final EnumMap<JavaKind, SnippetInfo> boxSnippets = new EnumMap<>(JavaKind.class);
182 private final EnumMap<JavaKind, SnippetInfo> unboxSnippets = new EnumMap<>(JavaKind.class);
183
184 public Templates(Providers providers, SnippetReflectionProvider snippetReflection, TargetDescription target) {
185 super(providers, snippetReflection, target);
186 for (JavaKind kind : new JavaKind[]{JavaKind.Boolean, JavaKind.Byte, JavaKind.Char, JavaKind.Double, JavaKind.Float, JavaKind.Int, JavaKind.Long, JavaKind.Short}) {
187 boxSnippets.put(kind, snippet(BoxingSnippets.class, kind.getJavaName() + "ValueOf"));
188 unboxSnippets.put(kind, snippet(BoxingSnippets.class, kind.getJavaName() + "Value"));
189 }
190 }
191
192 public void lower(BoxNode box, LoweringTool tool) {
193 FloatingNode canonical = canonicalizeBoxing(box, providers.getMetaAccess(), providers.getConstantReflection());
194 // if in AOT mode, we don't want to embed boxed constants.
195 if (canonical != null && !ImmutableCode.getValue()) {
196 box.graph().replaceFixedWithFloating(box, canonical);
197 } else {
198 Arguments args = new Arguments(boxSnippets.get(box.getBoxingKind()), box.graph().getGuardsStage(), tool.getLoweringStage());
199 args.add("value", box.getValue());
200
201 SnippetTemplate template = template(args);
202 Debug.log("Lowering integerValueOf in %s: node=%s, template=%s, arguments=%s", box.graph(), box, template, args);
203 template.instantiate(providers.getMetaAccess(), box, DEFAULT_REPLACER, args);
204 }
205 }
206
207 public void lower(UnboxNode unbox, LoweringTool tool) {
208 Arguments args = new Arguments(unboxSnippets.get(unbox.getBoxingKind()), unbox.graph().getGuardsStage(), tool.getLoweringStage());
209 args.add("value", unbox.getValue());
210
211 SnippetTemplate template = template(args);
212 Debug.log("Lowering integerValueOf in %s: node=%s, template=%s, arguments=%s", unbox.graph(), unbox, template, args);
213 template.instantiate(providers.getMetaAccess(), unbox, DEFAULT_REPLACER, args);
214 }
215 }
216
217 private static final SnippetCounter.Group integerCounters = SnippetCounters.getValue() ? new SnippetCounter.Group("Integer intrinsifications") : null;
218 private static final SnippetCounter valueOfCounter = new SnippetCounter(integerCounters, "valueOf", "valueOf intrinsification");
219
220 }