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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/NullCheckNode.java @ 19403:7e2c87dae93e

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Create static final NodeClass field named TYPE in Node subclasses.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Mon, 16 Feb 2015 15:43:03 +0100
parents f57d86eb036f
children 61d3cb8e1280
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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.nodes.extended;
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24
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25 import com.oracle.graal.compiler.common.type.*;
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26 import com.oracle.graal.graph.*;
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27 import com.oracle.graal.nodeinfo.*;
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28 import com.oracle.graal.nodes.*;
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29 import com.oracle.graal.nodes.spi.*;
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30
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31 @NodeInfo(allowedUsageTypes = {InputType.Guard})
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32 public final class NullCheckNode extends DeoptimizingFixedWithNextNode implements LIRLowerable, GuardingNode {
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33
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34 public static final NodeClass TYPE = NodeClass.get(NullCheckNode.class);
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35 @Input ValueNode object;
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36
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37 public NullCheckNode(ValueNode object) {
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38 super(TYPE, StampFactory.forVoid());
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39 this.object = object;
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40 }
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41
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42 public ValueNode getObject() {
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43 return object;
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44 }
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45
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46 @Override
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47 public void generate(NodeLIRBuilderTool generator) {
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48 generator.getLIRGeneratorTool().emitNullCheck(generator.operand(object), generator.state(this));
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49 }
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50
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51 @Override
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52 public boolean canDeoptimize() {
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53 return true;
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54 }
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55 }