Mercurial > hg > graal-compiler
view graal/com.oracle.graal.truffle.hotspot/src/com/oracle/graal/truffle/hotspot/HotSpotTruffleRuntimeAccess.java @ 23209:f35e653aa876
moved @Option mechanism from JVMCI to Graal (GRAAL-1371)
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 21 Dec 2015 16:19:35 +0100 |
parents | fcd9e8f41e2b |
children | 56359eb3abfa |
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/* * Copyright (c) 2015, 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.graal.truffle.hotspot; import java.util.function.Supplier; import jdk.vm.ci.common.JVMCIError; import jdk.vm.ci.runtime.JVMCI; import jdk.vm.ci.runtime.JVMCICompiler; import jdk.vm.ci.runtime.JVMCICompilerFactory; import jdk.vm.ci.service.ServiceProvider; import jdk.vm.ci.service.Services; import com.oracle.graal.api.runtime.GraalJVMCICompiler; import com.oracle.graal.api.runtime.GraalRuntime; import com.oracle.graal.hotspot.HotSpotGraalCompilerFactory; import com.oracle.graal.options.Option; import com.oracle.graal.options.OptionValue; import com.oracle.truffle.api.TruffleRuntime; import com.oracle.truffle.api.TruffleRuntimeAccess; @ServiceProvider(TruffleRuntimeAccess.class) public class HotSpotTruffleRuntimeAccess implements TruffleRuntimeAccess { static class Options { // @formatter:off @Option(help = "Select a graal compiler for Truffle compilation (default: use JVMCI system compiler).") public static final OptionValue<String> TruffleCompiler = new OptionValue<>(null); // @formatter:on } public TruffleRuntime getRuntime() { // initialize JVMCI to make sure the TruffleCompiler option is parsed JVMCI.initialize(); Supplier<GraalRuntime> lazyRuntime; if (Options.TruffleCompiler.hasDefaultValue()) { lazyRuntime = new LazySystemGraalRuntime(); } else { HotSpotGraalCompilerFactory factory = findCompilerFactory(Options.TruffleCompiler.getValue()); lazyRuntime = new LazyCustomGraalRuntime(factory); } return new HotSpotTruffleRuntime(lazyRuntime); } private static HotSpotGraalCompilerFactory findCompilerFactory(String name) { for (JVMCICompilerFactory factory : Services.load(JVMCICompilerFactory.class)) { if (factory instanceof HotSpotGraalCompilerFactory) { if (name.equals(factory.getCompilerName())) { return (HotSpotGraalCompilerFactory) factory; } } } throw new JVMCIError("Graal compiler configuration '%s' not found.", name); } private abstract static class LazyGraalRuntime implements Supplier<GraalRuntime> { private volatile GraalRuntime graalRuntime; public GraalRuntime get() { if (graalRuntime == null) { synchronized (this) { if (graalRuntime == null) { graalRuntime = getCompiler().getGraalRuntime(); } } } return graalRuntime; } protected abstract GraalJVMCICompiler getCompiler(); } private static final class LazyCustomGraalRuntime extends LazyGraalRuntime { private final HotSpotGraalCompilerFactory factory; private LazyCustomGraalRuntime(HotSpotGraalCompilerFactory factory) { this.factory = factory; } @Override protected GraalJVMCICompiler getCompiler() { return factory.createCompiler(JVMCI.getRuntime()); } } private static final class LazySystemGraalRuntime extends LazyGraalRuntime { @Override protected GraalJVMCICompiler getCompiler() { JVMCICompiler compiler = JVMCI.getRuntime().getCompiler(); if (compiler instanceof GraalJVMCICompiler) { return (GraalJVMCICompiler) compiler; } else { throw new JVMCIError("JVMCI system compiler '%s' is not a Graal compiler.", compiler.getClass().getName()); } } } }