[deliverable/linux.git] / arch / mips / include / asm / arch_hweight.h

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 */
#ifndef _ASM_ARCH_HWEIGHT_H
#define _ASM_ARCH_HWEIGHT_H

#ifdef ARCH_HAS_USABLE_BUILTIN_POPCOUNT

#include <asm/types.h>

static inline unsigned int __arch_hweight32(unsigned int w)
{
	return __builtin_popcount(w);
}

static inline unsigned int __arch_hweight16(unsigned int w)
{
	return __builtin_popcount(w & 0xffff);
}

static inline unsigned int __arch_hweight8(unsigned int w)
{
	return __builtin_popcount(w & 0xff);
}

static inline unsigned long __arch_hweight64(__u64 w)
{
	return __builtin_popcountll(w);
}

#else
#include <asm-generic/bitops/arch_hweight.h>
#endif

#endif /* _ASM_ARCH_HWEIGHT_H */
Commit	Line	Data
1a403d1d DD	1	/*
	2	* This file is subject to the terms and conditions of the GNU General Public
	3	* License. See the file "COPYING" in the main directory of this archive
	4	* for more details.
	5	*
	6	*/
	7	#ifndef _ASM_ARCH_HWEIGHT_H
	8	#define _ASM_ARCH_HWEIGHT_H
	9
	10	#ifdef ARCH_HAS_USABLE_BUILTIN_POPCOUNT
	11
	12	#include <asm/types.h>
	13
	14	static inline unsigned int __arch_hweight32(unsigned int w)
	15	{
	16	return __builtin_popcount(w);
	17	}
	18
	19	static inline unsigned int __arch_hweight16(unsigned int w)
	20	{
	21	return __builtin_popcount(w & 0xffff);
	22	}
	23
	24	static inline unsigned int __arch_hweight8(unsigned int w)
	25	{
	26	return __builtin_popcount(w & 0xff);
	27	}
	28
	29	static inline unsigned long __arch_hweight64(__u64 w)
	30	{
	31	return __builtin_popcountll(w);
	32	}
	33
	34	#else
	35	#include <asm-generic/bitops/arch_hweight.h>
	36	#endif
	37
	38	#endif /* _ASM_ARCH_HWEIGHT_H */