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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/G1PreWriteBarrier.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 a858c5f56d8a
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1 /*
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2 * Copyright (c) 2013, 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.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.*;
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28 import com.oracle.graal.nodes.extended.*;
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29
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30 @NodeInfo
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31 public final class G1PreWriteBarrier extends WriteBarrier implements DeoptimizingNode.DeoptBefore {
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32
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33 public static final NodeClass<G1PreWriteBarrier> TYPE = NodeClass.create(G1PreWriteBarrier.class);
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34
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35 @OptionalInput(InputType.State) FrameState stateBefore;
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36 protected final boolean nullCheck;
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37 protected final boolean doLoad;
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38
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39 public G1PreWriteBarrier(ValueNode object, ValueNode expectedObject, LocationNode location, boolean doLoad, boolean nullCheck) {
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40 super(TYPE, object, expectedObject, location, true);
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41 this.doLoad = doLoad;
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42 this.nullCheck = nullCheck;
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43 }
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44
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45 public ValueNode getExpectedObject() {
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46 return getValue();
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47 }
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48
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49 public boolean doLoad() {
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50 return doLoad;
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51 }
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52
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53 public boolean getNullCheck() {
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54 return nullCheck;
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55 }
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56
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57 @Override
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58 public boolean canDeoptimize() {
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59 return nullCheck;
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60 }
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61
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62 @Override
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63 public FrameState stateBefore() {
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64 return stateBefore;
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65 }
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66
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67 @Override
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68 public void setStateBefore(FrameState state) {
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69 updateUsages(stateBefore, state);
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70 stateBefore = state;
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71 }
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72 }