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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/AbstractStateSplit.java @ 18176:c2270ad35f57

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Better construction of data section and data patches.
author Roland Schatz <roland.schatz@oracle.com>
date Mon, 27 Oct 2014 14:07:49 +0100
parents f90dcdbbb75e
children 7e2c87dae93e
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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
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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;
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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.nodeinfo.*;
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27
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28 /**
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29 * Provides an implementation of {@link StateSplit}.
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30 */
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31 @NodeInfo
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32 public abstract class AbstractStateSplit extends FixedWithNextNode implements StateSplit {
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33
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34 @OptionalInput(InputType.State) protected FrameState stateAfter;
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35
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36 public FrameState stateAfter() {
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37 return stateAfter;
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38 }
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39
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40 public void setStateAfter(FrameState x) {
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41 assert x == null || x.isAlive() : "frame state must be in a graph";
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42 updateUsages(stateAfter, x);
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43 stateAfter = x;
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44 }
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45
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46 public boolean hasSideEffect() {
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47 return true;
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48 }
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49
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50 public AbstractStateSplit(Stamp stamp) {
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51 super(stamp);
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52 }
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53
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54 public AbstractStateSplit(Stamp stamp, FrameState stateAfter) {
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55 super(stamp);
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56 this.stateAfter = stateAfter;
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57 }
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58 }