bpred_unit.cc revision 10244:d2deb51a4abf 
1/*
2 * Copyright (c) 2004-2006 The Regents of The University of Michigan
3 * Copyright (c) 2010 The University of Edinburgh
4 * Copyright (c) 2012 Mark D. Hill and David A. Wood
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are
9 * met: redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer;
11 * redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution;
14 * neither the name of the copyright holders nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * Authors: Kevin Lim
31 *          Timothy M. Jones
32 */
33
34#include "cpu/pred/2bit_local.hh"
35#include "cpu/pred/bi_mode.hh"
36#include "cpu/pred/bpred_unit_impl.hh"
37#include "cpu/pred/tournament.hh"
38
39BPredUnit *
40BranchPredictorParams::create()
41{
42    // Setup the selected predictor.
43    if (predType == "local") {
44        return new LocalBP(this);
45    } else if (predType == "tournament") {
46        return new TournamentBP(this);
47    } else if (predType == "bi-mode") {
48        return new BiModeBP(this);
49    } else {
50        fatal("Invalid BP selected!");
51    }
52}
53