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annotate graal/com.oracle.max.cri/src/com/oracle/max/cri/xir/XirSite.java @ 5026:b11561111585

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Remove FrameStateAccess: Make FrameState immutable and move all modification logic into FrameStateBuilder
author Christian Wimmer <Christian.Wimmer@Oracle.com>
date Mon, 05 Mar 2012 09:55:54 -0800
parents 5e6f1026a63e
children 2e9a5365dfb0
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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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aaac4894175c Renamed cri packages from sun to oracle.
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23 package com.oracle.max.cri.xir;
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25 /**
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26 * Encapsulates the notion of a site where XIR can be supplied. It is supplied to the {@link RiXirGenerator} by the
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27 * compiler for each place where XIR can be generated. This interface allows a number of queries, including the
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28 * bytecode-level location and optimization hints computed by the compiler.
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29 */
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30 public interface XirSite {
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32 /**
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33 * Checks whether the specified argument is guaranteed to be non-null at this site.
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34 * @param argument the argument
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35 * @return {@code true} if the argument is non null at this site
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36 */
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37 boolean isNonNull(XirArgument argument);
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39 /**
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40 * Checks whether this site requires a null check.
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41 * @return {@code true} if a null check is required
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42 */
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43 boolean requiresNullCheck();
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44
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45 /**
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46 * Checks whether this site requires a range check.
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47 * @return {@code true} if a range check is required
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48 */
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49 boolean requiresBoundsCheck();
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51 /**
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52 * Checks whether this site requires a read barrier.
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53 * @return {@code true} if a read barrier is required
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54 */
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55 boolean requiresReadBarrier();
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57 /**
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58 * Checks whether this site requires a write barrier.
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59 * @return {@code true} if a write barrier is required
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60 */
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61 boolean requiresWriteBarrier();
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63 /**
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64 * Checks whether this site requires an array store check.
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65 * @return {@code true} if an array store check is required
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66 */
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67 boolean requiresArrayStoreCheck();
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68 }