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annotate gcc/config/i386/popcntintrin.h @ 67:f6334be47118

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update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
author nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
date Tue, 22 Mar 2011 17:18:12 +0900
parents 77e2b8dfacca
children 04ced10e8804
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1 /* Copyright (C) 2009 Free Software Foundation, Inc.
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2
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3 This file is part of GCC.
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4
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5 GCC is free software; you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 3, or (at your option)
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8 any later version.
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9
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10 GCC is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 Under Section 7 of GPL version 3, you are granted additional
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16 permissions described in the GCC Runtime Library Exception, version
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17 3.1, as published by the Free Software Foundation.
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18
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19 You should have received a copy of the GNU General Public License and
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20 a copy of the GCC Runtime Library Exception along with this program;
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21 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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22 <http://www.gnu.org/licenses/>. */
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23
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24 #ifndef __POPCNT__
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25 # error "POPCNT instruction set not enabled"
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26 #endif /* __POPCNT__ */
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27
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28 #ifndef _POPCNTINTRIN_H_INCLUDED
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29 #define _POPCNTINTRIN_H_INCLUDED
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30
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31 /* Calculate a number of bits set to 1. */
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32 extern __inline int __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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33 _mm_popcnt_u32 (unsigned int __X)
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34 {
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35 return __builtin_popcount (__X);
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36 }
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37
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38 #ifdef __x86_64__
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39 extern __inline long long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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40 _mm_popcnt_u64 (unsigned long long __X)
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41 {
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42 return __builtin_popcountll (__X);
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43 }
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44 #endif
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46 #endif /* _POPCNTINTRIN_H_INCLUDED */