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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/AssertionSnippets.java @ 18699:08b17b738500

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Add hooks for verifying heap from generated code
author Tom Rodriguez <tom.rodriguez@oracle.com>
date Tue, 16 Dec 2014 13:36:16 -0800
parents f1e4ed5ac7d2
children 48c1ebd24120
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1 /*
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2 * Copyright (c) 2014, 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.replacements;
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24
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25 import static com.oracle.graal.hotspot.nodes.CStringNode.*;
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26 import static com.oracle.graal.replacements.SnippetTemplate.*;
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27
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28 import com.oracle.graal.api.code.*;
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29 import com.oracle.graal.api.meta.*;
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30 import com.oracle.graal.graph.Node.ConstantNodeParameter;
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31 import com.oracle.graal.graph.Node.NodeIntrinsic;
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32 import com.oracle.graal.hotspot.meta.*;
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33 import com.oracle.graal.hotspot.nodes.*;
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34 import com.oracle.graal.nodes.*;
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35 import com.oracle.graal.nodes.extended.*;
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36 import com.oracle.graal.nodes.spi.*;
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37 import com.oracle.graal.replacements.*;
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38 import com.oracle.graal.replacements.Snippet.ConstantParameter;
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39 import com.oracle.graal.replacements.SnippetTemplate.AbstractTemplates;
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40 import com.oracle.graal.replacements.SnippetTemplate.Arguments;
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41 import com.oracle.graal.replacements.SnippetTemplate.SnippetInfo;
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42 import com.oracle.graal.replacements.nodes.*;
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43 import com.oracle.graal.word.*;
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44
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45 public class AssertionSnippets implements Snippets {
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46
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47 /**
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48 * This call can only be used with true for the "vmError" parameter, so that it can be
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49 * configured to be a leaf method.
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50 */
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51 public static final ForeignCallDescriptor ASSERTION_VM_MESSAGE_C = new ForeignCallDescriptor("assertionVmMessageC", void.class, boolean.class, Word.class, long.class, long.class, long.class);
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52
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53 @Snippet
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54 public static void assertion(boolean value, @ConstantParameter String message) {
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55 if (!value) {
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56 vmMessageC(ASSERTION_VM_MESSAGE_C, true, cstring(message), 0L, 0L, 0L);
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57 }
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58 }
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59
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60 @Snippet
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61 public static void stubAssertion(boolean value, @ConstantParameter String message) {
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62 if (!value) {
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63 vmMessageC(ASSERTION_VM_MESSAGE_C, true, cstring(message), 0L, 0L, 0L);
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64 }
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65 }
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66
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67 @NodeIntrinsic(ForeignCallNode.class)
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68 static native void vmMessageC(@ConstantNodeParameter ForeignCallDescriptor stubPrintfC, boolean vmError, Word format, long v1, long v2, long v3);
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69
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70 public static class Templates extends AbstractTemplates {
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71
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72 private final SnippetInfo assertion = snippet(AssertionSnippets.class, "assertion");
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73 private final SnippetInfo stubAssertion = snippet(AssertionSnippets.class, "stubAssertion");
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74
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75 public Templates(HotSpotProviders providers, TargetDescription target) {
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76 super(providers, providers.getSnippetReflection(), target);
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77 }
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78
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79 public void lower(AssertionNode assertionNode, LoweringTool tool) {
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80 StructuredGraph graph = assertionNode.graph();
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81 Arguments args = new Arguments(graph.start() instanceof StubStartNode ? stubAssertion : assertion, graph.getGuardsStage(), tool.getLoweringStage());
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82 args.add("value", assertionNode.value());
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83 args.addConst("message", "failed runtime assertion in snippet/stub: " + assertionNode.message() + " (" + graph.method() + ")");
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84
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85 template(args).instantiate(providers.getMetaAccess(), assertionNode, DEFAULT_REPLACER, args);
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86 }
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87 }
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88 }