src/hotspot/cpu/s390/vmreg_s390.hpp

/*
 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
 * Copyright (c) 2016 SAP SE. 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_S390_VM_VMREG_S390_HPP
#define CPU_S390_VM_VMREG_S390_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 Register as_Register() {
  assert(is_Register() && is_even(value()), "even-aligned GPR name");
  return ::as_Register(value() >> 1);
}

inline FloatRegister as_FloatRegister() {
  assert(is_FloatRegister() && is_even(value()), "must be");
  return ::as_FloatRegister((value() - ConcreteRegisterImpl::max_gpr) >> 1);
}

inline bool is_concrete() {
  assert(is_reg(), "must be");
  return is_even(value());
}

#endif // CPU_S390_VM_VMREG_S390_HPP