Mercurial > hg > truffle
view graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/alloc/util/LocationMap.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 | f5328dda9714 |
children | 430b5db3e6f8 |
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/* * Copyright (c) 2011, 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.graal.alloc.util; import static com.oracle.max.graal.alloc.util.ValueUtil.*; import java.util.*; import com.oracle.max.cri.ci.*; import com.oracle.max.graal.compiler.lir.LIRInstruction.ValueProcedure; public class LocationMap { private final Location[] locations; public LocationMap(int numVariables) { locations = new Location[numVariables]; } public LocationMap(LocationMap template) { locations = Arrays.copyOf(template.locations, template.locations.length); } public Location get(CiVariable variable) { assert locations[variable.index] == null || locations[variable.index].variable == variable; return locations[variable.index]; } public void put(Location location) { locations[location.variable.index] = location; } public void clear(CiVariable variable) { locations[variable.index] = null; } public void forEachLocation(ValueProcedure proc) { for (int i = 0; i < locations.length; i++) { if (locations[i] != null) { CiValue newValue = proc.doValue(locations[i]); assert newValue == null || asLocation(newValue).variable == locations[i].variable; locations[i] = (Location) newValue; } } } public boolean checkEmpty() { for (int i = 0; i < locations.length; i++) { assert locations[i] == null; } return true; } }