1 /*
 2  * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
 3  * Copyright 2007 Red Hat, Inc.
 4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 5  *
 6  * This code is free software; you can redistribute it and/or modify it
 7  * under the terms of the GNU General Public License version 2 only, as
 8  * published by the Free Software Foundation.
 9  *
10  * This code is distributed in the hope that it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13  * version 2 for more details (a copy is included in the LICENSE file that
14  * accompanied this code).
15  *
16  * You should have received a copy of the GNU General Public License version
17  * 2 along with this work; if not, write to the Free Software Foundation,
18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19  *
20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21  * or visit www.oracle.com if you need additional information or have any
22  * questions.
23  *
24  */
25 
26 #include "precompiled.hpp"
27 #include "asm/assembler.hpp"
28 #include "code/vmreg.hpp"
29 
30 void VMRegImpl::set_regName() {
31   int i = 0;
32   Register reg = ::as_Register(0);
33   for ( ; i < ConcreteRegisterImpl::max_gpr ; ) {
34     regName[i++] = reg->name();
35     reg = reg->successor();
36   }
37   FloatRegister freg = ::as_FloatRegister(0);
38   for ( ; i < ConcreteRegisterImpl::max_fpr ; ) {
39     regName[i++] = freg->name();
40     freg = freg->successor();
41   }
42   assert(i == ConcreteRegisterImpl::number_of_registers, "fix this");
43 }
44 
45 bool VMRegImpl::is_Register() {
46   return value() >= 0 &&
47          value() < ConcreteRegisterImpl::max_gpr;
48 }
49 
50 bool VMRegImpl::is_FloatRegister() {
51   return value() >= ConcreteRegisterImpl::max_gpr &&
52          value() < ConcreteRegisterImpl::max_fpr;
53 }
54 
55 Register VMRegImpl::as_Register() {
56   assert(is_Register(), "must be");
57   return ::as_Register(value());
58 }
59 
60 FloatRegister VMRegImpl::as_FloatRegister() {
61   assert(is_FloatRegister(), "must be" );
62   return ::as_FloatRegister(value() - ConcreteRegisterImpl::max_gpr);
63 }