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annotate graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/nodes/typesystem/CustomizedUnsafeStoreMacroNode.java @ 16582:0eb70f622d01

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Truffle: make NeverPartOfCompilationNode a MacroStateSplitNode for better debuggability
author Andreas Woess <andreas.woess@jku.at>
date Fri, 18 Jul 2014 00:33:37 +0200
parents e6622e77e8c7
children 5d468add216f
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1 /*
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2 * Copyright (c) 2013, 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.truffle.nodes.typesystem;
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24
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25 import com.oracle.graal.api.meta.*;
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26 import com.oracle.graal.graph.*;
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27 import com.oracle.graal.graph.spi.*;
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28 import com.oracle.graal.nodes.*;
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29 import com.oracle.graal.nodes.extended.*;
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30 import com.oracle.graal.truffle.nodes.*;
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31 import com.oracle.graal.truffle.nodes.asserts.*;
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32 import com.oracle.truffle.api.*;
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33
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34 /**
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35 * Macro node for method {@link CompilerDirectives#unsafeCast(Object, Class, boolean)}.
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36 */
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37 public class CustomizedUnsafeStoreMacroNode extends NeverPartOfCompilationNode implements Canonicalizable, StateSplit {
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38 private static final int ARGUMENT_COUNT = 4;
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39 private static final int OBJECT_ARGUMENT_INDEX = 0;
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40 private static final int OFFSET_ARGUMENT_INDEX = 1;
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41 private static final int VALUE_ARGUMENT_INDEX = 2;
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42 private static final int LOCATION_ARGUMENT_INDEX = 3;
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43
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44 public CustomizedUnsafeStoreMacroNode(Invoke invoke) {
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45 super(invoke, "The location argument could not be resolved to a constant.");
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46 assert arguments.size() == ARGUMENT_COUNT;
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47 }
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48
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49 @Override
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50 public Node canonical(CanonicalizerTool tool) {
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51 ValueNode locationArgument = arguments.get(LOCATION_ARGUMENT_INDEX);
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52 if (locationArgument.isConstant()) {
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53 ValueNode objectArgument = arguments.get(OBJECT_ARGUMENT_INDEX);
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54 ValueNode offsetArgument = arguments.get(OFFSET_ARGUMENT_INDEX);
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55 ValueNode valueArgument = arguments.get(VALUE_ARGUMENT_INDEX);
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56 LocationIdentity locationIdentity;
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57 if (locationArgument.asConstant().isNull()) {
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58 locationIdentity = LocationIdentity.ANY_LOCATION;
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59 } else {
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60 locationIdentity = ObjectLocationIdentity.create(locationArgument.asConstant());
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61 }
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62
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63 return new UnsafeStoreNode(objectArgument, offsetArgument, valueArgument, this.getTargetMethod().getSignature().getParameterKind(VALUE_ARGUMENT_INDEX), locationIdentity, stateAfter());
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64 }
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65 return this;
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66 }
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67 }