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38 lines
792 B
38 lines
792 B
/* |
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* This file is subject to the terms and conditions of the GNU General Public |
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* License. See the file "COPYING" in the main directory of this archive |
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* for more details. |
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* |
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*/ |
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#ifndef _ASM_ARCH_HWEIGHT_H |
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#define _ASM_ARCH_HWEIGHT_H |
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#ifdef ARCH_HAS_USABLE_BUILTIN_POPCOUNT |
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#include <asm/types.h> |
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static inline unsigned int __arch_hweight32(unsigned int w) |
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{ |
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return __builtin_popcount(w); |
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} |
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static inline unsigned int __arch_hweight16(unsigned int w) |
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{ |
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return __builtin_popcount(w & 0xffff); |
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} |
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static inline unsigned int __arch_hweight8(unsigned int w) |
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{ |
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return __builtin_popcount(w & 0xff); |
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} |
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static inline unsigned long __arch_hweight64(__u64 w) |
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{ |
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return __builtin_popcountll(w); |
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} |
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#else |
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#include <asm-generic/bitops/arch_hweight.h> |
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#endif |
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#endif /* _ASM_ARCH_HWEIGHT_H */
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