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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotLoadFieldPlugin.java @ 19791:14e703edb2ab

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use GraphBuilderPlugins for method substitutions, intrinsics and snippets (GRAAL-982)
author Doug Simon <doug.simon@oracle.com>
date Wed, 11 Mar 2015 20:43:12 +0100
parents 09dfba3dbfb2
children 4d33cd6e0c8f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
19778
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
Doug Simon <doug.simon@oracle.com>
parents:
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1 /*
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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4 *
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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5 * This code is free software; you can redistribute it and/or modify it
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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6 * under the terms of the GNU General Public License version 2 only, as
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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7 * published by the Free Software Foundation.
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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8 *
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
Doug Simon <doug.simon@oracle.com>
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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parents:
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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parents:
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12 * version 2 for more details (a copy is included in the LICENSE file that
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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13 * accompanied this code).
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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14 *
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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15 * You should have received a copy of the GNU General Public License version
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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parents:
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16 * 2 along with this work; if not, write to the Free Software Foundation,
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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18 *
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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20 * or visit www.oracle.com if you need additional information or have any
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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21 * questions.
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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22 */
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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23 package com.oracle.graal.hotspot.meta;
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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24
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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25 import static com.oracle.graal.compiler.common.GraalOptions.*;
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14e703edb2ab use GraphBuilderPlugins for method substitutions, intrinsics and snippets (GRAAL-982)
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26 import static com.oracle.graal.java.AbstractBytecodeParser.Options.*;
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27
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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28 import com.oracle.graal.api.meta.*;
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29 import com.oracle.graal.api.replacements.*;
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09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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30 import com.oracle.graal.java.*;
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31 import com.oracle.graal.java.GraphBuilderPlugin.LoadFieldPlugin;
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09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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32 import com.oracle.graal.nodes.*;
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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33
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14e703edb2ab use GraphBuilderPlugins for method substitutions, intrinsics and snippets (GRAAL-982)
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34 public final class HotSpotLoadFieldPlugin implements LoadFieldPlugin {
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09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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35 private final MetaAccessProvider metaAccess;
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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36 private final ConstantReflectionProvider constantReflection;
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37
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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38 public HotSpotLoadFieldPlugin(MetaAccessProvider metaAccess, ConstantReflectionProvider constantReflection) {
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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39 this.metaAccess = metaAccess;
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40 this.constantReflection = constantReflection;
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41 }
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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42
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43 static final ThreadLocal<Boolean> FieldReadEnabledInImmutableCode = new ThreadLocal<>();
14e703edb2ab use GraphBuilderPlugins for method substitutions, intrinsics and snippets (GRAAL-982)
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44
14e703edb2ab use GraphBuilderPlugins for method substitutions, intrinsics and snippets (GRAAL-982)
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45 public boolean apply(GraphBuilderContext b, ValueNode receiver, ResolvedJavaField field) {
14e703edb2ab use GraphBuilderPlugins for method substitutions, intrinsics and snippets (GRAAL-982)
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parents: 19778
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46 if ((InlineDuringParsing.getValue() && !ImmutableCode.getValue()) || b.parsingReplacement()) {
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09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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47 if (receiver.isConstant()) {
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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48 JavaConstant asJavaConstant = receiver.asJavaConstant();
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14e703edb2ab use GraphBuilderPlugins for method substitutions, intrinsics and snippets (GRAAL-982)
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49 return tryReadField(b, field, asJavaConstant);
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09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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50 }
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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51 }
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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52 return false;
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53 }
09dfba3dbfb2 refactored HotSpot graph builder plugins into top level classes
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54
19791
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55 private boolean tryReadField(GraphBuilderContext b, ResolvedJavaField field, JavaConstant receiver) {
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56 if (ImmutableCode.getValue()) {
14e703edb2ab use GraphBuilderPlugins for method substitutions, intrinsics and snippets (GRAAL-982)
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parents: 19778
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57 FieldReadEnabledInImmutableCode.set(Boolean.TRUE);
14e703edb2ab use GraphBuilderPlugins for method substitutions, intrinsics and snippets (GRAAL-982)
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parents: 19778
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58 }
14e703edb2ab use GraphBuilderPlugins for method substitutions, intrinsics and snippets (GRAAL-982)
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59 try {
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60 return tryConstantFold(b, metaAccess, constantReflection, field, receiver);
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61 } finally {
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62 if (ImmutableCode.getValue()) {
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63 FieldReadEnabledInImmutableCode.set(null);
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64 }
14e703edb2ab use GraphBuilderPlugins for method substitutions, intrinsics and snippets (GRAAL-982)
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65 }
14e703edb2ab use GraphBuilderPlugins for method substitutions, intrinsics and snippets (GRAAL-982)
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66 }
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67
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68 public boolean apply(GraphBuilderContext b, ResolvedJavaField staticField) {
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69 if ((InlineDuringParsing.getValue() && !ImmutableCode.getValue()) || b.parsingReplacement()) {
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70 // Javac does not allow use of "$assertionsDisabled" for a field name but
14e703edb2ab use GraphBuilderPlugins for method substitutions, intrinsics and snippets (GRAAL-982)
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parents: 19778
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71 // Eclipse does in which case a suffix is added to the generated field.
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72 if (b.parsingReplacement() && staticField.isSynthetic() && staticField.getName().startsWith("$assertionsDisabled")) {
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73 // For methods called indirectly from intrinsics, we (silently) disable
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parents: 19778
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74 // assertions so that the parser won't see calls to the AssertionError
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75 // constructor (all Invokes must be removed from intrinsics - see
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76 // HotSpotInlineInvokePlugin.notifyOfNoninlinedInvoke). Direct use of
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parents: 19778
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77 // assertions in intrinsics is forbidden.
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78 assert b.getMethod().getAnnotation(MethodSubstitution.class) == null : "cannot use assertions in " + b.getMethod().format("%H.%n(%p)");
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79 ConstantNode trueNode = b.append(ConstantNode.forBoolean(true));
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80 b.push(trueNode.getKind().getStackKind(), trueNode);
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81 return true;
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82 }
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83 return tryReadField(b, staticField, null);
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84 }
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85 return false;
19778
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86 }
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87 }