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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/DirectStoreNode.java @ 5400:028c9ce0fc0f

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added support for -G:+CheckcastCounters in checkcast snippets
author Doug Simon <doug.simon@oracle.com>
date Tue, 15 May 2012 10:03:33 +0200
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children 141817e206d4
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5400
028c9ce0fc0f added support for -G:+CheckcastCounters in checkcast snippets
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1 /*
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2 * Copyright (c) 2012, 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
028c9ce0fc0f added support for -G:+CheckcastCounters in checkcast snippets
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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.snippets;
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24
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25 import com.oracle.graal.nodes.*;
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26 import com.oracle.graal.nodes.extended.*;
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27 import com.oracle.graal.nodes.spi.*;
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28 import com.oracle.graal.nodes.type.*;
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29 import com.oracle.max.cri.ci.*;
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30
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31 /**
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32 * A special purpose store node that differs from {@link UnsafeStoreNode} in that
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33 * it is not a {@link StateSplit} and takes a computed address instead of an object.
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34 */
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35 class DirectStoreNode extends FixedWithNextNode implements LIRLowerable {
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36 @Input private ValueNode address;
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37 @Input private ValueNode value;
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38
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39 public DirectStoreNode(ValueNode address, ValueNode value) {
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40 super(StampFactory.illegal());
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41 this.address = address;
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42 this.value = value;
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43 }
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44
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45 @SuppressWarnings("unused")
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46 @NodeIntrinsic
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47 public static void store(long address, long value) {
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48 throw new UnsupportedOperationException();
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49 }
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50
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51 @SuppressWarnings("unused")
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52 @NodeIntrinsic
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53 public static void store(long address, boolean value) {
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54 throw new UnsupportedOperationException();
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55 }
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56
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57 @Override
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58 public void generate(LIRGeneratorTool gen) {
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59 CiValue v = gen.operand(value);
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60 gen.emitStore(new CiAddress(v.kind, gen.operand(address)), v, false);
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61 }
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62 }