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annotate graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotConstantReflectionProvider.java @ 21551:5324104ac4f3

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moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 26 May 2015 17:13:37 +0200
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children
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21551
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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1 /*
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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2 * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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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
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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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
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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13 * accompanied this code).
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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14 *
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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15 * You should have received a copy of the GNU General Public License version
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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16 * 2 along with this work; if not, write to the Free Software Foundation,
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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20 * or visit www.oracle.com if you need additional information or have any
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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21 * questions.
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22 */
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23 package com.oracle.jvmci.hotspot;
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24
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25 import static com.oracle.jvmci.hotspot.HotSpotConstantReflectionProvider.Options.*;
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26
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27 import java.lang.reflect.*;
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28
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29 import com.oracle.graal.api.meta.*;
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30 import com.oracle.graal.options.*;
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31
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32 /**
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33 * HotSpot implementation of {@link ConstantReflectionProvider}.
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34 */
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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35 public class HotSpotConstantReflectionProvider implements ConstantReflectionProvider, HotSpotProxified {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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36
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37 static class Options {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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38 //@formatter:off
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39 @Option(help = "Constant fold final fields with default values.", type = OptionType.Debug)
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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40 public static final OptionValue<Boolean> TrustFinalDefaultFields = new OptionValue<>(true);
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41 //@formatter:on
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42 }
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43
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44 protected final HotSpotJVMCIRuntimeProvider runtime;
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45 protected final HotSpotMethodHandleAccessProvider methodHandleAccess;
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46 protected final HotSpotMemoryAccessProviderImpl memoryAccess;
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47
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48 public HotSpotConstantReflectionProvider(HotSpotJVMCIRuntimeProvider runtime) {
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49 this.runtime = runtime;
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50 this.methodHandleAccess = new HotSpotMethodHandleAccessProvider(this);
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51 this.memoryAccess = new HotSpotMemoryAccessProviderImpl(runtime);
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52 }
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53
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54 public MethodHandleAccessProvider getMethodHandleAccess() {
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55 return methodHandleAccess;
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56 }
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57
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58 @Override
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59 public MemoryAccessProvider getMemoryAccessProvider() {
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60 return memoryAccess;
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61 }
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62
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63 @Override
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64 public Boolean constantEquals(Constant x, Constant y) {
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65 if (x == y) {
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66 return true;
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67 } else if (x instanceof HotSpotObjectConstantImpl) {
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68 return y instanceof HotSpotObjectConstantImpl && ((HotSpotObjectConstantImpl) x).object() == ((HotSpotObjectConstantImpl) y).object();
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69 } else {
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70 return x.equals(y);
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71 }
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72 }
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73
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74 @Override
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75 public Integer readArrayLength(JavaConstant array) {
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76 if (array.getKind() != Kind.Object || array.isNull()) {
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77 return null;
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78 }
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79
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80 Object arrayObject = ((HotSpotObjectConstantImpl) array).object();
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81 if (!arrayObject.getClass().isArray()) {
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82 return null;
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83 }
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84 return Array.getLength(arrayObject);
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85 }
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86
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87 public JavaConstant readConstantArrayElement(JavaConstant array, int index) {
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88 if (array instanceof HotSpotObjectConstantImpl && ((HotSpotObjectConstantImpl) array).getStableDimension() > 0) {
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89 JavaConstant element = readArrayElement(array, index);
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90 if (element != null && (((HotSpotObjectConstantImpl) array).isDefaultStable() || !element.isDefaultForKind())) {
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91 return element;
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92 }
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93 }
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94 return null;
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95 }
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96
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97 /**
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98 * Try to convert {@code offset} into an an index into {@code array}.
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
99 *
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
100 * @return -1 if the offset isn't within the array or the computed index
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
101 */
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
102 private int indexForOffset(JavaConstant array, long offset) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
103 if (array.getKind() != Kind.Object || array.isNull()) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
104 return -1;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
105 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
106 Class<?> componentType = ((HotSpotObjectConstantImpl) array).object().getClass().getComponentType();
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
107 Kind kind = runtime.getHostJVMCIBackend().getMetaAccess().lookupJavaType(componentType).getKind();
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
108 int arraybase = runtime.getArrayBaseOffset(kind);
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
109 int scale = runtime.getArrayIndexScale(kind);
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
110 if (offset < arraybase) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
111 return -1;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
112 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
113 long index = offset - arraybase;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
114 if (index % scale != 0) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
115 return -1;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
116 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
117 long result = index / scale;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
118 if (result >= Integer.MAX_VALUE) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
119 return -1;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
120 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
121 return (int) result;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
122 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
123
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
124 public JavaConstant readConstantArrayElementForOffset(JavaConstant array, long offset) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
125 if (array instanceof HotSpotObjectConstantImpl && ((HotSpotObjectConstantImpl) array).getStableDimension() > 0) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
126 return readConstantArrayElement(array, indexForOffset(array, offset));
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
127 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
128 return null;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
129 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
130
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
131 @Override
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
132 public JavaConstant readArrayElement(JavaConstant array, int index) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
133 if (array.getKind() != Kind.Object || array.isNull()) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
134 return null;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
135 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
136 Object a = ((HotSpotObjectConstantImpl) array).object();
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
137
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
138 if (index < 0 || index >= Array.getLength(a)) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
139 return null;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
140 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
141
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
142 if (a instanceof Object[]) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
143 Object element = ((Object[]) a)[index];
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
144 if (((HotSpotObjectConstantImpl) array).getStableDimension() > 1) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
145 return HotSpotObjectConstantImpl.forStableArray(element, ((HotSpotObjectConstantImpl) array).getStableDimension() - 1, ((HotSpotObjectConstantImpl) array).isDefaultStable());
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
146 } else {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
147 return HotSpotObjectConstantImpl.forObject(element);
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
148 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
149 } else {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
150 return JavaConstant.forBoxedPrimitive(Array.get(a, index));
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
151 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
152 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
153
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
154 /**
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
155 * Check if the constant is a boxed value that is guaranteed to be cached by the platform.
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
156 * Otherwise the generated code might be the only reference to the boxed value and since object
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
157 * references from nmethods are weak this can cause GC problems.
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
158 *
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
159 * @param source
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
160 * @return true if the box is cached
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
161 */
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
162 private static boolean isBoxCached(JavaConstant source) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
163 switch (source.getKind()) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
164 case Boolean:
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
165 return true;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
166 case Char:
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
167 return source.asInt() <= 127;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
168 case Byte:
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
169 case Short:
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
170 case Int:
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
171 return source.asInt() >= -128 && source.asInt() <= 127;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
172 case Long:
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
173 return source.asLong() >= -128 && source.asLong() <= 127;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
174 case Float:
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
175 case Double:
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
176 return false;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
177 default:
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
178 throw new IllegalArgumentException("unexpected kind " + source.getKind());
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
179 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
180 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
181
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
182 @Override
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
183 public JavaConstant boxPrimitive(JavaConstant source) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
184 if (!source.getKind().isPrimitive() || !isBoxCached(source)) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
185 return null;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
186 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
187 return HotSpotObjectConstantImpl.forObject(source.asBoxedPrimitive());
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
188 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
189
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
190 @Override
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
191 public JavaConstant unboxPrimitive(JavaConstant source) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
192 if (!source.getKind().isObject()) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
193 return null;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
194 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
195 if (source.isNull()) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
196 return null;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
197 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
198 return JavaConstant.forBoxedPrimitive(((HotSpotObjectConstantImpl) source).object());
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
199 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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200
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201 public JavaConstant forString(String value) {
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202 return HotSpotObjectConstantImpl.forObject(value);
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203 }
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204
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205 @Override
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206 public ResolvedJavaType asJavaType(Constant constant) {
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207 if (constant instanceof HotSpotObjectConstant) {
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208 Object obj = ((HotSpotObjectConstantImpl) constant).object();
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209 if (obj instanceof Class) {
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210 return runtime.getHostJVMCIBackend().getMetaAccess().lookupJavaType((Class<?>) obj);
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211 }
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212 }
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213 if (constant instanceof HotSpotMetaspaceConstant) {
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214 Object obj = HotSpotMetaspaceConstantImpl.getMetaspaceObject(constant);
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215 if (obj instanceof HotSpotResolvedObjectTypeImpl) {
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216 return (ResolvedJavaType) obj;
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217 }
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218 }
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219 return null;
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220 }
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221
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222 private static final String SystemClassName = "Ljava/lang/System;";
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223
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224 /**
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225 * Determines if a static field is constant for the purpose of
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226 * {@link #readConstantFieldValue(JavaField, JavaConstant)}.
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227 */
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228 protected boolean isStaticFieldConstant(HotSpotResolvedJavaField staticField) {
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229 if (staticField.isFinal() || staticField.isStable()) {
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230 ResolvedJavaType holder = staticField.getDeclaringClass();
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231 if (holder.isInitialized() && !holder.getName().equals(SystemClassName)) {
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232 return true;
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233 }
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234 }
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235 return false;
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236 }
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237
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238 /**
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239 * Determines if a value read from a {@code final} instance field is considered constant. The
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240 * implementation in {@link HotSpotConstantReflectionProvider} returns true if {@code value} is
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241 * not the {@link JavaConstant#isDefaultForKind default value} for its kind or if
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242 * {@link Options#TrustFinalDefaultFields} is true.
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243 *
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244 * @param value a value read from a {@code final} instance field
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245 * @param receiverClass the {@link Object#getClass() class} of object from which the
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246 * {@code value} was read
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247 */
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248 protected boolean isFinalInstanceFieldValueConstant(JavaConstant value, Class<?> receiverClass) {
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249 return !value.isDefaultForKind() || TrustFinalDefaultFields.getValue();
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250 }
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251
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252 /**
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253 * Determines if a value read from a {@link Stable} instance field is considered constant. The
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254 * implementation in {@link HotSpotConstantReflectionProvider} returns true if {@code value} is
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255 * not the {@link JavaConstant#isDefaultForKind default value} for its kind.
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256 *
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257 * @param value a value read from a {@link Stable} field
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258 * @param receiverClass the {@link Object#getClass() class} of object from which the
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259 * {@code value} was read
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260 */
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diff changeset
261 protected boolean isStableInstanceFieldValueConstant(JavaConstant value, Class<?> receiverClass) {
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262 return !value.isDefaultForKind();
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263 }
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264
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diff changeset
265 /**
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266 * {@inheritDoc}
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267 * <p>
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268 * The {@code value} field in {@link OptionValue} is considered constant if the type of
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269 * {@code receiver} is (assignable to) {@link StableOptionValue}.
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270 */
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diff changeset
271 public JavaConstant readConstantFieldValue(JavaField field, JavaConstant receiver) {
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272 HotSpotResolvedJavaField hotspotField = (HotSpotResolvedJavaField) field;
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273
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274 if (hotspotField.isStatic()) {
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275 if (isStaticFieldConstant(hotspotField)) {
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276 JavaConstant value = readFieldValue(field, receiver);
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277 if (hotspotField.isFinal() || !value.isDefaultForKind()) {
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diff changeset
278 return value;
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279 }
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280 }
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281 } else {
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diff changeset
282 /*
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283 * for non-static final fields, we must assume that they are only initialized if they
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284 * have a non-default value.
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diff changeset
285 */
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diff changeset
286 Object object = receiver.isNull() ? null : ((HotSpotObjectConstantImpl) receiver).object();
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287
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288 // Canonicalization may attempt to process an unsafe read before
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diff changeset
289 // processing a guard (e.g. a null check or a type check) for this read
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diff changeset
290 // so we need to check the object being read
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diff changeset
291 if (object != null) {
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diff changeset
292 if (hotspotField.isFinal()) {
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diff changeset
293 if (hotspotField.isInObject(object)) {
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diff changeset
294 JavaConstant value = readFieldValue(field, receiver);
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diff changeset
295 if (isFinalInstanceFieldValueConstant(value, object.getClass())) {
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diff changeset
296 return value;
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diff changeset
297 }
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diff changeset
298 }
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diff changeset
299 } else if (hotspotField.isStable()) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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parents:
diff changeset
300 if (hotspotField.isInObject(object)) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
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diff changeset
301 JavaConstant value = readFieldValue(field, receiver);
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
302 if (isStableInstanceFieldValueConstant(value, object.getClass())) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
303 return value;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
304 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
305 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
306 } else {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
307 Class<?> clazz = object.getClass();
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
308 if (StableOptionValue.class.isAssignableFrom(clazz)) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
309 if (hotspotField.isInObject(object) && hotspotField.getName().equals("value")) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
310 StableOptionValue<?> option = (StableOptionValue<?>) object;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
311 return HotSpotObjectConstantImpl.forObject(option.getValue());
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
312 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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parents:
diff changeset
313 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
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parents:
diff changeset
314 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
315 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
316 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
317 return null;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
318 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
319
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
320 public JavaConstant readFieldValue(JavaField field, JavaConstant receiver) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
321 HotSpotResolvedJavaField hotspotField = (HotSpotResolvedJavaField) field;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
322 if (!hotspotField.isStable()) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
323 return readNonStableFieldValue(field, receiver);
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
324 } else {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
325 return readStableFieldValue(field, receiver, false);
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
326 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
327 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
328
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
329 private JavaConstant readNonStableFieldValue(JavaField field, JavaConstant receiver) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
330 HotSpotResolvedJavaField hotspotField = (HotSpotResolvedJavaField) field;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
331 if (hotspotField.isStatic()) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
332 HotSpotResolvedJavaType holder = (HotSpotResolvedJavaType) hotspotField.getDeclaringClass();
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
333 if (holder.isInitialized()) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
334 return memoryAccess.readUnsafeConstant(hotspotField.getKind(), HotSpotObjectConstantImpl.forObject(holder.mirror()), hotspotField.offset());
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
335 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
336 } else {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
337 if (receiver.isNonNull() && hotspotField.isInObject(((HotSpotObjectConstantImpl) receiver).object())) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
338 return memoryAccess.readUnsafeConstant(hotspotField.getKind(), receiver, hotspotField.offset());
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
339 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
340 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
341 return null;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
342 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
343
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
344 public JavaConstant readStableFieldValue(JavaField field, JavaConstant receiver, boolean isDefaultStable) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
345 JavaConstant fieldValue = readNonStableFieldValue(field, receiver);
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
346 if (fieldValue.isNonNull()) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
347 JavaType declaredType = field.getType();
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
348 if (declaredType.getComponentType() != null) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
349 int stableDimension = getArrayDimension(declaredType);
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
350 return HotSpotObjectConstantImpl.forStableArray(((HotSpotObjectConstantImpl) fieldValue).object(), stableDimension, isDefaultStable);
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
351 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
352 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
353 return fieldValue;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
354 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
355
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
356 private static int getArrayDimension(JavaType type) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
357 int dimensions = 0;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
358 JavaType componentType = type;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
359 while ((componentType = componentType.getComponentType()) != null) {
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
360 dimensions++;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
361 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
362 return dimensions;
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
363 }
5324104ac4f3 moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
diff changeset
364 }