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1 /*
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2 * Copyright 2006-2007 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 inline VMReg RegisterImpl::as_VMReg() {
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26 if( this==noreg ) return VMRegImpl::Bad();
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27 return VMRegImpl::as_VMReg(encoding() << 1 );
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28 }
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29
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30 inline VMReg FloatRegisterImpl::as_VMReg() { return VMRegImpl::as_VMReg( ConcreteRegisterImpl::max_gpr + encoding() ); }
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31
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32
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33 inline bool VMRegImpl::is_Register() { return value() >= 0 && value() < ConcreteRegisterImpl::max_gpr; }
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34 inline bool VMRegImpl::is_FloatRegister() { return value() >= ConcreteRegisterImpl::max_gpr &&
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35 value() < ConcreteRegisterImpl::max_fpr; }
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36 inline Register VMRegImpl::as_Register() {
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37
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38 assert( is_Register() && is_even(value()), "even-aligned GPR name" );
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39 // Yuk
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40 return ::as_Register(value()>>1);
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41 }
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42
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43 inline FloatRegister VMRegImpl::as_FloatRegister() {
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44 assert( is_FloatRegister(), "must be" );
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45 // Yuk
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46 return ::as_FloatRegister( value() - ConcreteRegisterImpl::max_gpr );
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47 }
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48
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49 inline bool VMRegImpl::is_concrete() {
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50 assert(is_reg(), "must be");
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51 int v = value();
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52 if ( v < ConcreteRegisterImpl::max_gpr ) {
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53 return is_even(v);
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54 }
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55 // F0..F31
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56 if ( v <= ConcreteRegisterImpl::max_gpr + 31) return true;
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57 if ( v < ConcreteRegisterImpl::max_fpr) {
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58 return is_even(v);
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59 }
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60 assert(false, "what register?");
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61 return false;
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62 }
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