Mercurial > hg > truffle
annotate graal/com.oracle.max.cri/src/com/oracle/max/cri/xir/XirSite.java @ 5289:6519cf82d390
remove on more vmExits instance
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Tue, 24 Apr 2012 18:13:14 +0200 |
parents | b11561111585 |
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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23 package com.oracle.max.cri.xir; |
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24 |
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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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31 |
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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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38 |
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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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50 |
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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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56 |
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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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62 |
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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 } |