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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/SystemIdentityHashCodeNode.java @ 15018:db4254246f9a

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Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
author Christian Wimmer <christian.wimmer@oracle.com>
date Mon, 07 Apr 2014 16:09:17 -0700
parents c5449c0d5909
children d90e5c22ba55
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c5449c0d5909 Move class SystemIdentityHashCodeNode to its own Java file to work around javac bug when compiling the inner class
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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
c5449c0d5909 Move class SystemIdentityHashCodeNode to its own Java file to work around javac bug when compiling the inner class
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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
c5449c0d5909 Move class SystemIdentityHashCodeNode to its own Java file to work around javac bug when compiling the inner class
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
c5449c0d5909 Move class SystemIdentityHashCodeNode to its own Java file to work around javac bug when compiling the inner class
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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.replacements;
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24
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25 import static com.oracle.graal.phases.GraalOptions.*;
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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.hotspot.meta.*;
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29 import com.oracle.graal.nodes.*;
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30 import com.oracle.graal.replacements.nodes.*;
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31
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32 public class SystemIdentityHashCodeNode extends PureFunctionMacroNode {
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33
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34 public SystemIdentityHashCodeNode(Invoke invoke) {
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35 super(invoke);
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36 }
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37
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38 @Override
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39 protected Constant evaluate(Constant param, MetaAccessProvider metaAccess) {
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40 return ImmutableCode.getValue() || param.isNull() ? null : Constant.forInt(System.identityHashCode(HotSpotObjectConstant.asObject(param)));
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41 }
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42 }