1 /* 2 * Copyright (c) 2008, 2014, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef CPU_ARM_VM_VMREG_ARM_HPP 26 #define CPU_ARM_VM_VMREG_ARM_HPP 27 is_Register()28 inline bool is_Register() { 29 return (unsigned int) value() < (unsigned int) ConcreteRegisterImpl::max_gpr; 30 } 31 is_FloatRegister()32 inline bool is_FloatRegister() { 33 return value() >= ConcreteRegisterImpl::max_gpr && value() < ConcreteRegisterImpl::max_fpr; 34 } 35 as_Register()36 inline Register as_Register() { 37 assert(is_Register(), "must be"); 38 assert(is_concrete(), "concrete register expected"); 39 return ::as_Register(value() >> ConcreteRegisterImpl::log_vmregs_per_gpr); 40 } 41 as_FloatRegister()42 inline FloatRegister as_FloatRegister() { 43 assert(is_FloatRegister(), "must be"); 44 assert(is_concrete(), "concrete register expected"); 45 return ::as_FloatRegister((value() - ConcreteRegisterImpl::max_gpr) >> ConcreteRegisterImpl::log_vmregs_per_fpr); 46 } 47 is_concrete()48 inline bool is_concrete() { 49 if (is_Register()) { 50 return ((value() & right_n_bits(ConcreteRegisterImpl::log_vmregs_per_gpr)) == 0); 51 } else if (is_FloatRegister()) { 52 return (((value() - ConcreteRegisterImpl::max_gpr) & right_n_bits(ConcreteRegisterImpl::log_vmregs_per_fpr)) == 0); 53 } else { 54 return false; 55 } 56 } 57 58 #endif // CPU_ARM_VM_VMREG_ARM_HPP 59