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68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
/* Copyright (C) 2009-2013 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#if !defined _X86INTRIN_H_INCLUDED && !defined _IMMINTRIN_H_INCLUDED
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# error "Never use <lzcntintrin.h> directly; include <x86intrin.h> instead."
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#endif
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#ifndef __LZCNT__
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# error "LZCNT instruction is not enabled"
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#endif /* __LZCNT__ */
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#ifndef _LZCNTINTRIN_H_INCLUDED
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#define _LZCNTINTRIN_H_INCLUDED
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extern __inline unsigned short __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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__lzcnt16 (unsigned short __X)
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{
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return __builtin_clzs (__X);
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}
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extern __inline unsigned int __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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__lzcnt32 (unsigned int __X)
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{
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return __builtin_clz (__X);
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}
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extern __inline unsigned int __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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_lzcnt_u32 (unsigned int __X)
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{
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return __builtin_clz (__X);
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}
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#ifdef __x86_64__
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extern __inline unsigned long long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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__lzcnt64 (unsigned long long __X)
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{
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return __builtin_clzll (__X);
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}
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extern __inline unsigned long long __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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_lzcnt_u64 (unsigned long long __X)
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{
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return __builtin_clzll (__X);
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}
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#endif
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#endif /* _LZCNTINTRIN_H_INCLUDED */
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