1 /* 2 * Copyright (c) 2006, 2007, 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 inline VMReg RegisterImpl::as_VMReg() { 26 if( this==noreg ) return VMRegImpl::Bad(); 27 return VMRegImpl::as_VMReg(encoding() << 1 ); 28 } 29 30 inline VMReg FloatRegisterImpl::as_VMReg() { return VMRegImpl::as_VMReg( ConcreteRegisterImpl::max_gpr + encoding() ); } 31 32 33 inline bool VMRegImpl::is_Register() { return value() >= 0 && value() < ConcreteRegisterImpl::max_gpr; } 34 inline bool VMRegImpl::is_FloatRegister() { return value() >= ConcreteRegisterImpl::max_gpr && 35 value() < ConcreteRegisterImpl::max_fpr; } 36 inline Register VMRegImpl::as_Register() { 37 38 assert( is_Register() && is_even(value()), "even-aligned GPR name" ); 39 // Yuk 40 return ::as_Register(value()>>1); 41 } 42 43 inline FloatRegister VMRegImpl::as_FloatRegister() { 44 assert( is_FloatRegister(), "must be" ); 45 // Yuk 46 return ::as_FloatRegister( value() - ConcreteRegisterImpl::max_gpr ); 47 } 48 49 inline bool VMRegImpl::is_concrete() { 50 assert(is_reg(), "must be"); 51 int v = value(); 52 if ( v < ConcreteRegisterImpl::max_gpr ) { 53 return is_even(v); 54 } 55 // F0..F31 56 if ( v <= ConcreteRegisterImpl::max_gpr + 31) return true; 57 if ( v < ConcreteRegisterImpl::max_fpr) { 58 return is_even(v); 59 } 60 assert(false, "what register?"); 61 return false; 62 }