Mercurial > hg > truffle
view graal/com.oracle.max.cri/src/com/oracle/max/cri/xir/XirSite.java @ 4688:f761948a7cd5
Made DeoptimizeALot flag available in product builds (to make testing with that flag faster).
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
---|---|
date | Fri, 24 Feb 2012 19:51:18 +0100 |
parents | aaac4894175c |
children | 985fbd8adf65 |
line wrap: on
line source
/* * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.max.cri.xir; import com.oracle.max.cri.ci.*; import com.oracle.max.cri.ri.*; /** * Encapsulates the notion of a site where XIR can be supplied. It is supplied to the {@link RiXirGenerator} by the * compiler for each place where XIR can be generated. This interface allows a number of queries, including the * bytecode-level location and optimization hints computed by the compiler. */ public interface XirSite { /** * Gets the {@link CiCodePos code position} associated with this site. This is useful for inserting * instrumentation at the XIR level. * @return the code position if it is available; {@code null} otherwise */ CiCodePos getCodePos(); /** * Checks whether the specified argument is guaranteed to be non-null at this site. * @param argument the argument * @return {@code true} if the argument is non null at this site */ boolean isNonNull(XirArgument argument); /** * Checks whether this site requires a null check. * @return {@code true} if a null check is required */ boolean requiresNullCheck(); /** * Checks whether this site requires a range check. * @return {@code true} if a range check is required */ boolean requiresBoundsCheck(); /** * Checks whether this site requires a read barrier. * @return {@code true} if a read barrier is required */ boolean requiresReadBarrier(); /** * Checks whether this site requires a write barrier. * @return {@code true} if a write barrier is required */ boolean requiresWriteBarrier(); /** * Checks whether this site requires an array store check. * @return {@code true} if an array store check is required */ boolean requiresArrayStoreCheck(); /** * Checks whether an approximation of the type for the specified argument is available. * @param argument the argument * @return an {@link RiType} indicating the most specific type known for the argument, if any; * {@code null} if no particular type is known */ RiType getApproximateType(XirArgument argument); /** * Checks whether an exact type is known for the specified argument. * @param argument the argument * @return an {@link RiType} indicating the exact type known for the argument, if any; * {@code null} if no particular type is known */ RiType getExactType(XirArgument argument); }