Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
[linux-2.6.git] / arch / mips / include / asm / arch_hweight.h
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 */