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annotate graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/MacroStateSplitNode.java @ 21556:48c1ebd24120

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renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Wed, 27 May 2015 00:36:16 +0200
parents 93c50cefb9e8
children 0e095e2c24e2
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1 /*
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2 * Copyright (c) 2013, 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
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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.replacements.nodes;
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24
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25 import com.oracle.graal.graph.*;
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26 import com.oracle.graal.nodeinfo.*;
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27 import com.oracle.graal.nodes.CallTargetNode.InvokeKind;
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28 import com.oracle.graal.nodes.*;
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29 import com.oracle.graal.nodes.java.*;
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30 import com.oracle.graal.nodes.memory.*;
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31 import com.oracle.jvmci.code.*;
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32 import com.oracle.jvmci.common.*;
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33 import com.oracle.jvmci.meta.*;
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34
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35 /**
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36 * This is an extension of {@link MacroNode} that is a {@link StateSplit} and a
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37 * {@link MemoryCheckpoint}.
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38 */
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39 @NodeInfo
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40 public abstract class MacroStateSplitNode extends MacroNode implements StateSplit, MemoryCheckpoint.Single {
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41
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42 public static final NodeClass<MacroStateSplitNode> TYPE = NodeClass.create(MacroStateSplitNode.class);
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43 @OptionalInput(InputType.State) protected FrameState stateAfter;
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44
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45 protected MacroStateSplitNode(NodeClass<? extends MacroNode> c, InvokeKind invokeKind, ResolvedJavaMethod targetMethod, int bci, JavaType returnType, ValueNode... arguments) {
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46 super(c, invokeKind, targetMethod, bci, returnType, arguments);
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47 }
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48
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49 @Override
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50 public FrameState stateAfter() {
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51 return stateAfter;
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52 }
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53
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54 public void setStateAfter(FrameState x) {
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55 assert x == null || x.isAlive() : "frame state must be in a graph";
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56 updateUsages(stateAfter, x);
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57 stateAfter = x;
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58 }
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59
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60 public boolean hasSideEffect() {
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61 return true;
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62 }
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63
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64 public LocationIdentity getLocationIdentity() {
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65 return LocationIdentity.any();
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66 }
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67
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68 protected void replaceSnippetInvokes(StructuredGraph snippetGraph) {
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69 for (MethodCallTargetNode call : snippetGraph.getNodes(MethodCallTargetNode.TYPE)) {
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70 Invoke invoke = call.invoke();
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71 if (!call.targetMethod().equals(getTargetMethod())) {
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72 throw new JVMCIError("unexpected invoke %s in snippet", getClass().getSimpleName());
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73 }
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74 assert invoke.stateAfter().bci == BytecodeFrame.AFTER_BCI;
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75 // Here we need to fix the bci of the invoke
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76 InvokeNode newInvoke = snippetGraph.add(new InvokeNode(invoke.callTarget(), getBci()));
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77 newInvoke.setStateAfter(invoke.stateAfter());
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78 snippetGraph.replaceFixedWithFixed((InvokeNode) invoke.asNode(), newInvoke);
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79 }
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80 }
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81 }