annotate src/cpu/x86/vm/registerMap_x86.hpp @ 71:3d62cb85208d

6662967: Optimize I2D conversion on new x86 Summary: Use CVTDQ2PS and CVTDQ2PD for integer values conversions to float and double values on new AMD cpu. Reviewed-by: sgoldman, never
author kvn
date Wed, 19 Mar 2008 15:33:25 -0700
parents a61af66fc99e
children c18cbe5936b8
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1 /*
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2 * Copyright 1998-2007 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 // machine-dependent implemention for register maps
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26 friend class frame;
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27
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28 private:
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29 // This is the hook for finding a register in an "well-known" location,
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30 // such as a register block of a predetermined format.
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31 // Since there is none, we just return NULL.
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32 // See registerMap_sparc.hpp for an example of grabbing registers
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33 // from register save areas of a standard layout.
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34 address pd_location(VMReg reg) const {return NULL;}
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35
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36 // no PD state to clear or copy:
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37 void pd_clear() {}
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38 void pd_initialize() {}
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39 void pd_initialize_from(const RegisterMap* map) {}