Mercurial > hg > truffle
view graal/com.oracle.graal.graph/src/com/oracle/graal/graph/DefaultNodeCollectionsProvider.java @ 17217:1738211d4cdb
Multiply use shift-add|subtract operations when easily possible. In DivNode use rightshift
author | Stefan Anzinger <stefan.anzinger@oracle.com> |
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date | Thu, 25 Sep 2014 18:54:59 -0700 |
parents | 33cedbce5b23 |
children |
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/* * Copyright (c) 2014, 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.graph; import java.util.*; import com.oracle.graal.api.collections.*; /** * A default implementation of {@link NodeCollectionsProvider} that creates standard JDK collection * class objects. */ public class DefaultNodeCollectionsProvider extends DefaultCollectionsProvider implements NodeCollectionsProvider { public <E extends Node> Set<E> newNodeIdentitySet() { return Collections.newSetFromMap(newNodeIdentityMap()); } public <K extends Node, V> Map<K, V> newNodeIdentityMap() { return new IdentityHashMap<>(); } public <K extends Node, V> Map<K, V> newNodeIdentityMap(int expectedMaxSize) { return new IdentityHashMap<>(expectedMaxSize); } public <K extends Node, V> Map<K, V> newNodeIdentityMap(Map<K, V> initFrom) { return new IdentityHashMap<>(initFrom); } }