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annotate graal/GraalCompiler/src/com/sun/c1x/ir/AccessArray.java @ 2509:16b9a8b5ad39

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Renamings Runtime=>GraalRuntime and Compiler=>GraalCompiler
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Wed, 27 Apr 2011 11:50:44 +0200
parents graal/Compiler/src/com/sun/c1x/ir/AccessArray.java@9ec15d6914ca
children 0f9eeb15e636
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2009, 2011, 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.sun.c1x.ir;
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24
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25 import com.sun.c1x.value.*;
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26 import com.sun.cri.ci.*;
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27
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28 /**
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29 * This the base class of all array operations.
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30 *
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31 * @author Ben L. Titzer
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32 */
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33 public abstract class AccessArray extends StateSplit {
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34
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35 protected Value array;
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36
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37 /**
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38 * Creates a new AccessArray instruction.
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39 * @param kind the type of the result of this instruction
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40 * @param array the instruction that produces the array object value
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41 * @param stateBefore the frame state before the instruction
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42 */
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43 public AccessArray(CiKind kind, Value array, FrameState stateBefore) {
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44 super(kind, stateBefore);
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45 this.array = array;
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46 if (array.isNonNull()) {
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47 eliminateNullCheck();
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48 }
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49 }
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50
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51 /**
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52 * Gets the instruction that produces the array object.
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53 * @return the instruction that produces the array object
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54 */
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55 public Value array() {
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56 return array;
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57 }
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58
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59 /**
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60 * Clears the state if this instruction can (no longer) trap.
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61 */
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62 @Override
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63 public void runtimeCheckCleared() {
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64 if (!canTrap()) {
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65 clearState();
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66 }
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67 }
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68
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69 @Override
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70 public void inputValuesDo(ValueClosure closure) {
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71 array = closure.apply(array);
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72 }
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73 }