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annotate graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/DeferredPiNode.java @ 19526:8fc336a04d77

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Create TYPE fields for LIRInstruction and CompositeValue. Renaming NodeClass#get to NodeClass#create.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Fri, 20 Feb 2015 22:22:55 +0100
parents 61d3cb8e1280
children 14e703edb2ab
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2012, 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.replacements.nodes;
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24
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25 //JaCoCo Exclude
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26
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27 import com.oracle.graal.api.meta.*;
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28 import com.oracle.graal.compiler.common.type.*;
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29 import com.oracle.graal.graph.*;
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30 import com.oracle.graal.graph.spi.*;
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31 import com.oracle.graal.nodeinfo.*;
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32 import com.oracle.graal.nodes.*;
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33 import com.oracle.graal.nodes.calc.*;
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34 import com.oracle.graal.replacements.*;
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35
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36 /**
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37 * A node for use in method substitutions or snippets that changes the type of its input where the
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38 * type is not immediately available at {@link NodeIntrinsificationPhase intrinsification} time. It
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39 * is replaced by a {@link PiNode} once the type becomes constant (which <b>must</b> happen).
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40 */
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41 @NodeInfo
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42 public final class DeferredPiNode extends FloatingNode implements Canonicalizable {
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8fc336a04d77 Create TYPE fields for LIRInstruction and CompositeValue. Renaming NodeClass#get to NodeClass#create.
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43 public static final NodeClass<DeferredPiNode> TYPE = NodeClass.create(DeferredPiNode.class);
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44
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45 @Input ValueNode object;
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46 @Input ValueNode type;
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47
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48 public ValueNode object() {
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49 return object;
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50 }
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51
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52 public DeferredPiNode(ValueNode type, ValueNode object) {
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53 super(TYPE, StampFactory.object());
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54 this.type = type;
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55 this.object = object;
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56 }
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57
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58 @Override
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59 public Node canonical(CanonicalizerTool tool) {
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60 if (type.isConstant()) {
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61 ResolvedJavaType javaType = tool.getConstantReflection().asJavaType(type.asConstant());
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62 ObjectStamp objectStamp = (ObjectStamp) stamp();
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63 return new PiNode(object, javaType, objectStamp.isExactType(), objectStamp.nonNull());
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64 }
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65 return this;
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66 }
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67
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68 @NodeIntrinsic
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69 public static native <T> T piCast(Class<T> type, Object object);
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70 }