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annotate graal/com.oracle.max.cri/src/com/sun/cri/ci/package-info.java @ 4181:319860ae697a

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Simplify FrameMap: make offsets of spill slots and outgoing parameters independent so that they can be allocated at the same time, eliminating the separate phases. This makes the separate StackBlock unnecesary. Change CiStackSlot to use byte offsets instead of spill slot index. This makes CiTarget.spillSlotSize unnecessary.
author Christian Wimmer <Christian.Wimmer@Oracle.com>
date Mon, 02 Jan 2012 14:16:08 -0800
parents e233f5660da4
children 8c9c0e1eaab1
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1 /*
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2 * Copyright (c) 2010, 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 /**
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24 * The compiler-provided part of the bi-directional interface between the compiler and the runtime system of a virtual machine for the instruction set defined in
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25 * {@link com.sun.cri.bytecode.Bytecodes}.
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26 *
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27 * The target hardware architecture is represented by {@link com.sun.cri.ci.CiArchitecture} and the specific target machine
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28 * environment for a compiler instance is represented by {@link com.sun.cri.ci.CiTarget}.
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29 * <p>
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30 * A {@code CiResult} encapsulates
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31 * {@linkplain com.sun.cri.ci.CiStatistics compilation statistics}, possible {@linkplain com.sun.cri.ci.CiBailout error state}
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32 * and the {@linkplain com.sun.cri.ci.CiTargetMethod compiled code and metadata}.
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33 * {@link com.sun.cri.ci.CiCodePos} and {@link com.sun.cri.ci.CiDebugInfo} provide detailed information to the
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34 * runtime to support debugging and deoptimization of the compiled code.
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35 * <p>
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36 * The compiler manipulates {@link com.sun.cri.ci.CiValue} instances that have a {@link com.sun.cri.ci.CiKind}, and are
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37 * immutable. A concrete {@link com.sun.cri.ci.CiValue value} is one of the following subclasses:
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38 * <ul>
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39 * <li>{@link com.sun.cri.ci.CiConstant}: a constant value.
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40 * <li>{@link com.sun.cri.ci.CiRegisterValue}: a value stored in a {@linkplain com.sun.cri.ci.CiRegister target machine register}.
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41 * <li>{@link com.sun.cri.ci.CiStackSlot}: a spill slot or an outgoing stack-based argument in a method's frame.
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42 * <li>{@link com.sun.cri.ci.CiAddress}: an address in target machine memory.
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43 * <li>{@link com.sun.cri.ci.CiVariable}: a value (cf. virtual register) that is yet to be bound to a target machine location (physical register or memory address).
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44 *</ul>
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45 */
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46 package com.sun.cri.ci;
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47