/*

 * Copyright (c) 2006, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#ifndef CPU_X86_VM_VMREG_X86_HPP

#define CPU_X86_VM_VMREG_X86_HPP

inline bool is_Register() {

  return (unsigned int) value() < (unsigned int) ConcreteRegisterImpl::max_gpr;

}

inline bool is_FloatRegister() {

  return value() >= ConcreteRegisterImpl::max_gpr && value() < ConcreteRegisterImpl::max_fpr;

}

inline bool is_XMMRegister() {

  int uarch_max_xmm = ConcreteRegisterImpl::max_xmm;

#ifdef _LP64

  if (UseAVX < 3) {

    int half_xmm = (XMMRegisterImpl::max_slots_per_register * XMMRegisterImpl::number_of_registers) / 2;

    uarch_max_xmm -= half_xmm;

  }

#endif

  return (value() >= ConcreteRegisterImpl::max_fpr && value() < uarch_max_xmm);

}

inline bool is_KRegister() {

  if (UseAVX > 2) {

    return value() >= ConcreteRegisterImpl::max_xmm && value() < ConcreteRegisterImpl::max_kpr;

  } else {

    return false;

  }

}

inline Register as_Register() {

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

  // Yuk

#ifdef AMD64

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

#else

  return ::as_Register(value());

#endif // AMD64

}

inline FloatRegister as_FloatRegister() {

  assert( is_FloatRegister() && is_even(value()), "must be" );

  // Yuk

  return ::as_FloatRegister((value() - ConcreteRegisterImpl::max_gpr) >> 1);

}

inline XMMRegister as_XMMRegister() {

  assert( is_XMMRegister() && is_even(value()), "must be" );

  // Yuk

  return ::as_XMMRegister((value() - ConcreteRegisterImpl::max_fpr) >> 4);

}

inline KRegister as_KRegister() {

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

  // Yuk

  return ::as_KRegister((value() - ConcreteRegisterImpl::max_xmm));

}

inline   bool is_concrete() {

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

#ifndef AMD64

  if (is_Register()) return true;

#endif // AMD64

  return is_even(value());

}

#endif // CPU_X86_VM_VMREG_X86_HPP