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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/IntrinsifyArrayCopyPhase.java @ 7342:c10ee98124e3

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short-circuit isAssignableFrom test in arraycopy intrinsification
author Doug Simon <doug.simon@oracle.com>
date Sat, 12 Jan 2013 00:11:23 +0100
parents d947dd27a763
children 62554b96c682
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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.hotspot.snippets;
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24
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25 import java.lang.reflect.*;
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26
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27 import com.oracle.graal.api.code.*;
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28 import com.oracle.graal.api.meta.*;
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29 import com.oracle.graal.debug.*;
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30 import com.oracle.graal.graph.*;
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31 import com.oracle.graal.nodes.*;
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32 import com.oracle.graal.nodes.java.*;
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33 import com.oracle.graal.nodes.spi.*;
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34 import com.oracle.graal.nodes.type.*;
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35 import com.oracle.graal.phases.*;
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36 import com.oracle.graal.phases.common.*;
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38 public class IntrinsifyArrayCopyPhase extends Phase {
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39 private final GraalCodeCacheProvider runtime;
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40 private final Assumptions assumptions;
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41 private ResolvedJavaMethod arrayCopy;
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42 private ResolvedJavaMethod byteArrayCopy;
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43 private ResolvedJavaMethod shortArrayCopy;
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44 private ResolvedJavaMethod charArrayCopy;
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45 private ResolvedJavaMethod intArrayCopy;
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46 private ResolvedJavaMethod longArrayCopy;
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47 private ResolvedJavaMethod floatArrayCopy;
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48 private ResolvedJavaMethod doubleArrayCopy;
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49 private ResolvedJavaMethod objectArrayCopy;
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50
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51 public IntrinsifyArrayCopyPhase(GraalCodeCacheProvider runtime, Assumptions assumptions) {
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52 this.runtime = runtime;
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53 this.assumptions = assumptions;
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54 try {
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55 byteArrayCopy = getArrayCopySnippet(runtime, byte.class);
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56 charArrayCopy = getArrayCopySnippet(runtime, char.class);
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57 shortArrayCopy = getArrayCopySnippet(runtime, short.class);
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58 intArrayCopy = getArrayCopySnippet(runtime, int.class);
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59 longArrayCopy = getArrayCopySnippet(runtime, long.class);
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60 floatArrayCopy = getArrayCopySnippet(runtime, float.class);
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61 doubleArrayCopy = getArrayCopySnippet(runtime, double.class);
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62 objectArrayCopy = getArrayCopySnippet(runtime, Object.class);
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63 arrayCopy = runtime.lookupJavaMethod(System.class.getDeclaredMethod("arraycopy", Object.class, int.class, Object.class, int.class, int.class));
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64 } catch (SecurityException e) {
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65 e.printStackTrace();
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66 } catch (NoSuchMethodException e) {
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67 e.printStackTrace();
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68 }
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69 }
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70
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71 private static ResolvedJavaMethod getArrayCopySnippet(CodeCacheProvider runtime, Class<?> componentClass) throws NoSuchMethodException {
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72 Class<?> arrayClass = Array.newInstance(componentClass, 0).getClass();
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73 return runtime.lookupJavaMethod(ArrayCopySnippets.class.getDeclaredMethod("arraycopy", arrayClass, int.class, arrayClass, int.class, int.class));
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74 }
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75
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76 @Override
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77 protected void run(StructuredGraph graph) {
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78 boolean hits = false;
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79 for (MethodCallTargetNode methodCallTarget : graph.getNodes(MethodCallTargetNode.class)) {
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80 ResolvedJavaMethod targetMethod = methodCallTarget.targetMethod();
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81 ResolvedJavaMethod snippetMethod = null;
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82 if (targetMethod == arrayCopy) {
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83 ValueNode src = methodCallTarget.arguments().get(0);
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84 ValueNode dest = methodCallTarget.arguments().get(2);
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85 assert src != null && dest != null;
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86 ObjectStamp srcStamp = src.objectStamp();
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87 ObjectStamp destStamp = dest.objectStamp();
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88 ResolvedJavaType srcType = srcStamp.type();
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89 ResolvedJavaType destType = destStamp.type();
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90 if (srcType != null
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91 && srcType.isArray()
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92 && destType != null
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93 && destType.isArray()) {
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94 Kind componentKind = srcType.getComponentType().getKind();
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95 if (componentKind != Kind.Object) {
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96 if (srcType.getComponentType() == destType.getComponentType()) {
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97 if (componentKind == Kind.Int) {
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98 snippetMethod = intArrayCopy;
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99 } else if (componentKind == Kind.Char) {
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100 snippetMethod = charArrayCopy;
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101 } else if (componentKind == Kind.Long) {
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102 snippetMethod = longArrayCopy;
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103 } else if (componentKind == Kind.Byte) {
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104 snippetMethod = byteArrayCopy;
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105 } else if (componentKind == Kind.Short) {
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106 snippetMethod = shortArrayCopy;
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107 } else if (componentKind == Kind.Float) {
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108 snippetMethod = floatArrayCopy;
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109 } else if (componentKind == Kind.Double) {
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110 snippetMethod = doubleArrayCopy;
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111 }
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112 }
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113 } else if (destType.getComponentType() == srcType.getComponentType() || destType.getComponentType().isAssignableFrom(srcType.getComponentType())) {
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114 if (destStamp.isExactType()) {
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115 snippetMethod = objectArrayCopy;
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116 }
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117 }
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118 }
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119 }
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120
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121 if (snippetMethod != null) {
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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: 6526
diff changeset
122 StructuredGraph snippetGraph = (StructuredGraph) snippetMethod.getCompilerStorage().get(Graph.class);
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
123 assert snippetGraph != null : "ArrayCopySnippets should be installed";
4420
97e0fb1f4906 Make Array copy intrinsifier active again, fix format string in canonicalizer
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 4412
diff changeset
124 hits = true;
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: 6526
diff changeset
125 Debug.log("%s > Intinsify (%s)", Debug.currentScope(), snippetMethod.getSignature().getParameterType(0, snippetMethod.getDeclaringClass()).getComponentType());
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
126 InliningUtil.inline(methodCallTarget.invoke(), snippetGraph, false);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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127 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
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128 }
4589
c148bec9398a Fixed computation of exact type information in PhiStampPhase.
Christian Haeubl <christian.haeubl@oracle.com>
parents: 4423
diff changeset
129 if (GraalOptions.OptCanonicalizer && hits) {
7064
8d16b9b2c51e first part of refactoring the InliningPhase
Christian Haeubl <haeubl@ssw.jku.at>
parents: 6539
diff changeset
130 new CanonicalizerPhase(null, runtime, assumptions).apply(graph);
4420
97e0fb1f4906 Make Array copy intrinsifier active again, fix format string in canonicalizer
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 4412
diff changeset
131 }
3733
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
132 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
133 }