Mercurial > hg > truffle
view graal/com.oracle.graal.java/src/com/oracle/graal/java/DefaultGraphBuilderPluginsProvider.java @ 19050:75da87c96605
initial commit of GraphBuilderPhase plugins
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Sat, 31 Jan 2015 00:30:00 +0100 |
parents | |
children | ed8ce7fb8dc2 |
line wrap: on
line source
/* * 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.java; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.api.runtime.*; import com.oracle.graal.compiler.common.type.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.java.*; @ServiceProvider(GraphBuilderPluginsProvider.class) public class DefaultGraphBuilderPluginsProvider implements GraphBuilderPluginsProvider { public void registerPlugins(MetaAccessProvider metaAccess, GraphBuilderPlugins plugins) { plugins.register(metaAccess, ObjectPlugin.class); } enum ObjectPlugin implements GraphBuilderPlugin { init() { public boolean handleInvocation(GraphBuilderContext builder, ValueNode[] args) { assert args.length == 1; ValueNode rcvr = args[0]; ObjectStamp objectStamp = (ObjectStamp) rcvr.stamp(); boolean needsCheck = true; if (objectStamp.isExactType()) { needsCheck = objectStamp.type().hasFinalizer(); } else if (objectStamp.type() != null && !objectStamp.type().hasFinalizableSubclass()) { // if either the declared type of receiver or the holder // can be assumed to have no finalizers Assumptions assumptions = builder.getAssumptions(); if (assumptions.useOptimisticAssumptions()) { assumptions.recordNoFinalizableSubclassAssumption(objectStamp.type()); needsCheck = false; } } if (needsCheck) { builder.append(new RegisterFinalizerNode(rcvr)); } return true; } public ResolvedJavaMethod getInvocationTarget(MetaAccessProvider metaAccess) { return GraphBuilderPlugin.resolveTarget(metaAccess, Object.class, "<init>"); } }; @Override public String toString() { return Object.class.getName() + "." + name() + "()"; } } }