Mercurial > hg > graal-jvmci-8
view jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/services/HotSpotJVMCICompilerFactory.java @ 23393:1d4ce2d19e52
clean up and minimize JVMCI (JDK-8156835)
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 12 May 2016 20:57:31 +0200 |
parents | 24505bf61633 |
children | b5557b757040 |
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/* * Copyright (c) 2016, 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 jdk.vm.ci.hotspot.services; import jdk.vm.ci.hotspot.HotSpotVMConfig; import jdk.vm.ci.runtime.services.JVMCICompilerFactory; /** * HotSpot extensions to {@link JVMCICompilerFactory}. */ public abstract class HotSpotJVMCICompilerFactory extends JVMCICompilerFactory { /** * Gets 0 or more prefixes identifying classes that should by compiled by C1 in simple mode * (i.e., {@code CompLevel_simple}) when HotSpot is running with tiered compilation. The * prefixes should be class or package names using "/" as the separator, e.g. "jdk/vm/ci". * * @return 0 or more Strings identifying packages that should by compiled by the first tier only * or null if no redirection to C1 should be performed. */ public String[] getTrivialPrefixes() { return null; } /** * Determines if this object may want to adjust the compilation level for a method that is being * scheduled by the VM for compilation. The legal return values and their meanings are: * <ul> * <li>0 - no adjustment</li> * <li>1 - adjust based on declaring class of method</li> * <li>2 - adjust based on declaring class, name and signature of method</li> * </ul> */ public int getCompilationLevelAdjustment(HotSpotVMConfig config) { return config.compLevelAdjustmentNone; } /** * Potentially modifies the compilation level currently selected by the VM compilation policy * for a method. * * @param config object for reading HotSpot {@code CompLevel} enum values * @param declaringClass the class in which the method is declared * @param name the name of the method or {@code null} depending on the value that was returned * by {@link #getCompilationLevelAdjustment(HotSpotVMConfig)} * @param signature the signature of the method or {@code null} depending on the value that was * returned by {@link #getCompilationLevelAdjustment(HotSpotVMConfig)} * @param isOsr specifies if the compilation being scheduled in an OSR compilation * @param level the compilation level currently selected by the VM compilation policy * @return the compilation level to use for the compilation being scheduled (must be a valid * {@code CompLevel} enum value) */ public int adjustCompilationLevel(HotSpotVMConfig config, Class<?> declaringClass, String name, String signature, boolean isOsr, int level) { throw new InternalError("Should not reach here"); } }