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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotRegistersProvider.java @ 18282:ecf3de366ecc

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added HotSpotObjectConstant.getIdentityHashCode()
author Doug Simon <doug.simon@oracle.com>
date Thu, 06 Nov 2014 13:24:16 +0100
parents c0e660b07e02
children 48c1ebd24120
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1 /*
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2 * Copyright (c) 2011, 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.hotspot.meta;
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24
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25 import com.oracle.graal.api.code.*;
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26
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27 /**
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28 * Special registers reserved by HotSpot for frequently used values.
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29 */
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30 public interface HotSpotRegistersProvider {
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31
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32 /**
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33 * Gets the register holding the current thread.
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34 */
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35 Register getThreadRegister();
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36
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37 /**
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38 * Gets the register holding the heap base address for compressed pointers.
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39 */
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40 Register getHeapBaseRegister();
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41
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42 /**
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43 * Gets the stack pointer register.
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44 */
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45 Register getStackPointerRegister();
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46 }