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annotate graal/com.oracle.jvmci.code/src/com/oracle/jvmci/code/RegisterValue.java @ 21565:f5b549811bac

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fixed eclipseformat issues
author Doug Simon <doug.simon@oracle.com>
date Fri, 29 May 2015 00:35:10 +0200
parents 48c1ebd24120
children
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1 /*
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2 * Copyright (c) 2009, 2014, 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.jvmci.code;
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24
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25 import com.oracle.jvmci.meta.*;
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27 /**
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28 * Denotes a register that stores a value of a fixed kind. There is exactly one (canonical) instance
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29 * of {@link RegisterValue} for each ({@link Register}, {@link Kind}) pair. Use
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30 * {@link Register#asValue(LIRKind)} to retrieve the canonical {@link RegisterValue} instance for a
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31 * given (register,kind) pair.
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32 */
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33 public final class RegisterValue extends AllocatableValue {
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34
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35 private final Register reg;
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36
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37 /**
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38 * Should only be called from {@link Register#Register} to ensure canonicalization.
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39 */
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40 protected RegisterValue(LIRKind kind, Register register) {
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41 super(kind);
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42 this.reg = register;
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43 }
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44
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45 @Override
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46 public String toString() {
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47 return getRegister().name + getKindSuffix();
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48 }
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49
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50 /**
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51 * @return the register that contains the value
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52 */
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53 public Register getRegister() {
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54 return reg;
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55 }
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56
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57 @Override
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58 public int hashCode() {
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59 return 29 * super.hashCode() + reg.hashCode();
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60 }
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61
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62 @Override
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63 public boolean equals(Object obj) {
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64 if (obj instanceof RegisterValue) {
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65 RegisterValue other = (RegisterValue) obj;
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66 return super.equals(obj) && reg.equals(other.reg);
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67 }
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68 return false;
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69 }
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70 }