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annotate graal/com.oracle.max.cri/src/com/sun/cri/ri/RiTypeProfile.java @ 4142:bc8527f3071c

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Adjust code base to new level of warnings.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sun, 18 Dec 2011 05:24:06 +0100
parents e233f5660da4
children
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1 /*
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2 * Copyright (c) 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.sun.cri.ri;
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25 import java.io.*;
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27 /**
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28 * This profile object represents the type profile of one call site, cast or instanceof instruction. The precision of
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29 * the supplied values may vary, but a runtime that provides this information should be aware that it will be used to
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30 * guide performance-critical decisions like speculative inlining, etc.
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31 */
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32 public class RiTypeProfile implements Serializable {
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34 /**
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35 *
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36 */
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37 private static final long serialVersionUID = -6877016333706838441L;
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38
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39 /**
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40 * How often the instruction was executed, which may be used to judge the maturity of this profile.
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41 */
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42 public int count;
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43
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44 /**
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45 * An estimation of how many different receiver types were encountered. This may or may not be the same as
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46 * probabilities.length/types.length, as the runtime may store probabilities for a limited number of receivers.
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47 */
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48 public int morphism;
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49
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50 /**
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51 * A list of receivers for which the runtime has recorded probability information. This array needs to have the same
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52 * length as {@link RiTypeProfile#probabilities}.
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53 */
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54 public RiResolvedType[] types;
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56 /**
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57 * The estimated probabilities of the different receivers. This array needs to have the same length as
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58 * {@link RiTypeProfile#types}.
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59 */
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60 public float[] probabilities;
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61 }