src/hotspot/cpu/sparc/vmreg_sparc.hpp

/*
 * 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
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 */

#ifndef CPU_SPARC_VM_VMREG_SPARC_HPP
#define CPU_SPARC_VM_VMREG_SPARC_HPP

inline bool is_Register() { return value() >= 0 && value() < ConcreteRegisterImpl::max_gpr; }
inline bool is_FloatRegister() { return value() >= ConcreteRegisterImpl::max_gpr &&
                                        value()  < ConcreteRegisterImpl::max_fpr; }
inline Register as_Register() {
  assert( is_Register() && is_even(value()), "even-aligned GPR name" );
  // Yuk
  return ::as_Register(value()>>1);
}

inline FloatRegister as_FloatRegister() {
  assert( is_FloatRegister(), "must be" );
  // Yuk
  return ::as_FloatRegister( value() - ConcreteRegisterImpl::max_gpr );
}

inline   bool 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;
}

#endif // CPU_SPARC_VM_VMREG_SPARC_HPP