Mercurial > hg > truffle
view graal/com.oracle.max.asmdis/src/com/sun/max/asm/dis/risc/OpcodeMaskGroup.java @ 4235:23f41c48b19b
Re-enabled Java cleaning in gate.
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Fri, 06 Jan 2012 14:22:57 +0100 |
parents | bc8527f3071c |
children |
line wrap: on
line source
/* * Copyright (c) 2007, 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.sun.max.asm.dis.risc; import java.util.*; import com.sun.max.asm.gen.risc.*; import com.sun.max.collect.*; /** * An opcode mask group is a collection of templates that share the same opcode mask. * Some templates in the group may also share the same opcode. */ public class OpcodeMaskGroup { private final int mask; public OpcodeMaskGroup(int mask) { this.mask = mask; } public int mask() { return mask; } private final Set<RiscTemplate> templates = new HashSet<>(); private final IntHashMap<List<RiscTemplate>> templatesForOpcodes = new IntHashMap<>(); private final List<RiscTemplate> empty = new LinkedList<>(); public void add(RiscTemplate template) { assert template.opcodeMask() == mask; templates.add(template); List<RiscTemplate> templatesForOpcode = templatesForOpcodes.get(template.opcode()); if (templatesForOpcode == null) { templatesForOpcode = new LinkedList<>(); templatesForOpcodes.put(template.opcode(), templatesForOpcode); } templatesForOpcode.add(template); } public List<RiscTemplate> templatesFor(int opcode) { final List<RiscTemplate> result = templatesForOpcodes.get(opcode); if (result == null) { return empty; } return result; } public Collection<RiscTemplate> templates() { return templates; } }