vmreg_x86.inline.hpp revision 1472:c18cbe5936b8 
1/*
2 * Copyright (c) 2006, 2007, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
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23 */
24
25inline VMReg RegisterImpl::as_VMReg() {
26  if( this==noreg ) return VMRegImpl::Bad();
27#ifdef AMD64
28  return VMRegImpl::as_VMReg(encoding() << 1 );
29#else
30  return VMRegImpl::as_VMReg(encoding() );
31#endif // AMD64
32}
33
34inline VMReg FloatRegisterImpl::as_VMReg() {
35  return VMRegImpl::as_VMReg((encoding() << 1) + ConcreteRegisterImpl::max_gpr);
36}
37
38inline VMReg XMMRegisterImpl::as_VMReg() {
39  return VMRegImpl::as_VMReg((encoding() << 1) + ConcreteRegisterImpl::max_fpr);
40}
41
42
43inline bool VMRegImpl::is_Register() {
44  return (unsigned int) value() < (unsigned int) ConcreteRegisterImpl::max_gpr;
45}
46
47inline bool VMRegImpl::is_FloatRegister() {
48  return value() >= ConcreteRegisterImpl::max_gpr && value() < ConcreteRegisterImpl::max_fpr;
49}
50
51inline bool VMRegImpl::is_XMMRegister() {
52  return value() >= ConcreteRegisterImpl::max_fpr && value() < ConcreteRegisterImpl::max_xmm;
53}
54
55inline Register VMRegImpl::as_Register() {
56
57  assert( is_Register(), "must be");
58  // Yuk
59#ifdef AMD64
60  return ::as_Register(value() >> 1);
61#else
62  return ::as_Register(value());
63#endif // AMD64
64}
65
66inline FloatRegister VMRegImpl::as_FloatRegister() {
67  assert( is_FloatRegister() && is_even(value()), "must be" );
68  // Yuk
69  return ::as_FloatRegister((value() - ConcreteRegisterImpl::max_gpr) >> 1);
70}
71
72inline XMMRegister VMRegImpl::as_XMMRegister() {
73  assert( is_XMMRegister() && is_even(value()), "must be" );
74  // Yuk
75  return ::as_XMMRegister((value() - ConcreteRegisterImpl::max_fpr) >> 1);
76}
77
78inline   bool VMRegImpl::is_concrete() {
79  assert(is_reg(), "must be");
80#ifndef AMD64
81  if (is_Register()) return true;
82#endif // AMD64
83  return is_even(value());
84}
85