vmreg_sparc.inline.hpp revision 0:a61af66fc99e 
1/*
2 * Copyright 2006-2007 Sun Microsystems, Inc.  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.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25inline VMReg RegisterImpl::as_VMReg() {
26  if( this==noreg ) return VMRegImpl::Bad();
27  return VMRegImpl::as_VMReg(encoding() << 1 );
28}
29
30inline VMReg FloatRegisterImpl::as_VMReg() { return VMRegImpl::as_VMReg( ConcreteRegisterImpl::max_gpr + encoding() ); }
31
32
33inline bool VMRegImpl::is_Register() { return value() >= 0 && value() < ConcreteRegisterImpl::max_gpr; }
34inline bool VMRegImpl::is_FloatRegister() { return value() >= ConcreteRegisterImpl::max_gpr &&
35                                                   value() < ConcreteRegisterImpl::max_fpr; }
36inline Register VMRegImpl::as_Register() {
37
38  assert( is_Register() && is_even(value()), "even-aligned GPR name" );
39  // Yuk
40  return ::as_Register(value()>>1);
41}
42
43inline FloatRegister VMRegImpl::as_FloatRegister() {
44  assert( is_FloatRegister(), "must be" );
45  // Yuk
46  return ::as_FloatRegister( value() - ConcreteRegisterImpl::max_gpr );
47}
48
49inline   bool VMRegImpl::is_concrete() {
50  assert(is_reg(), "must be");
51  int v = value();
52  if ( v  <  ConcreteRegisterImpl::max_gpr ) {
53    return is_even(v);
54  }
55  // F0..F31
56  if ( v <= ConcreteRegisterImpl::max_gpr + 31) return true;
57  if ( v <  ConcreteRegisterImpl::max_fpr) {
58    return is_even(v);
59  }
60  assert(false, "what register?");
61  return false;
62}
63