Mercurial > hg > truffle
view graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiTypeProfile.java @ 4199:aaac4894175c
Renamed cri packages from sun to oracle.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Tue, 03 Jan 2012 16:29:28 +0100 |
parents | graal/com.oracle.max.cri/src/com/sun/cri/ri/RiTypeProfile.java@bc8527f3071c |
children | 4e3aaf14cbc6 |
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/* * Copyright (c) 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.ri; import java.io.*; /** * This profile object represents the type profile of one call site, cast or instanceof instruction. The precision of * the supplied values may vary, but a runtime that provides this information should be aware that it will be used to * guide performance-critical decisions like speculative inlining, etc. */ public class RiTypeProfile implements Serializable { /** * */ private static final long serialVersionUID = -6877016333706838441L; /** * How often the instruction was executed, which may be used to judge the maturity of this profile. */ public int count; /** * An estimation of how many different receiver types were encountered. This may or may not be the same as * probabilities.length/types.length, as the runtime may store probabilities for a limited number of receivers. */ public int morphism; /** * A list of receivers for which the runtime has recorded probability information. This array needs to have the same * length as {@link RiTypeProfile#probabilities}. */ public RiResolvedType[] types; /** * The estimated probabilities of the different receivers. This array needs to have the same length as * {@link RiTypeProfile#types}. */ public float[] probabilities; }