/*

 * Copyright 2006-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 *

 */

inline VMReg RegisterImpl::as_VMReg() {

  if( this==noreg ) return VMRegImpl::Bad();

  return VMRegImpl::as_VMReg(encoding() << 1 );

}

inline VMReg FloatRegisterImpl::as_VMReg() { return VMRegImpl::as_VMReg( ConcreteRegisterImpl::max_gpr + encoding() ); }

inline bool VMRegImpl::is_Register() { return value() >= 0 && value() < ConcreteRegisterImpl::max_gpr; }

inline bool VMRegImpl::is_FloatRegister() { return value() >= ConcreteRegisterImpl::max_gpr &&

                                                   value() < ConcreteRegisterImpl::max_fpr; }

inline Register VMRegImpl::as_Register() {

  assert( is_Register() && is_even(value()), "even-aligned GPR name" );

  // Yuk

  return ::as_Register(value()>>1);

}

inline FloatRegister VMRegImpl::as_FloatRegister() {

  assert( is_FloatRegister(), "must be" );

  // Yuk

  return ::as_FloatRegister( value() - ConcreteRegisterImpl::max_gpr );

}

inline   bool VMRegImpl::is_concrete() {

  assert(is_reg(), "must be");

  int v = value();

  if ( v  <  ConcreteRegisterImpl::max_gpr ) {

    return is_even(v);

  }

  // F0..F31

  if ( v <= ConcreteRegisterImpl::max_gpr + 31) return true;

  if ( v <  ConcreteRegisterImpl::max_fpr) {

    return is_even(v);

  }

  assert(false, "what register?");

  return false;

}