diff options
Diffstat (limited to 'arch/mips/include/asm/arch_hweight.h')
| -rw-r--r-- | arch/mips/include/asm/arch_hweight.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/mips/include/asm/arch_hweight.h b/arch/mips/include/asm/arch_hweight.h new file mode 100644 index 00000000000..712a7445ee9 --- /dev/null +++ b/arch/mips/include/asm/arch_hweight.h @@ -0,0 +1,38 @@ +/* + * 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 */ |