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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-18 12:17:01 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-18 12:17:01 -0400 |
commit | cb41838bbc4403f7270a94b93a9a0d9fc9c2e7ea (patch) | |
tree | 0f359975ccad4ac72e86b8edf1924c076e74bd89 /arch/ia64 | |
parent | 98f01720cbe3e2eb719682777049b6514e9db556 (diff) | |
parent | c59bd5688299cddb71183e156e7a3c1409b90df2 (diff) |
Merge branch 'core-hweight-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-hweight-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, hweight: Use a 32-bit popcnt for __arch_hweight32()
arch, hweight: Fix compilation errors
x86: Add optimized popcnt variants
bitops: Optimize hweight() by making use of compile-time evaluation
Diffstat (limited to 'arch/ia64')
-rw-r--r-- | arch/ia64/include/asm/bitops.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/ia64/include/asm/bitops.h b/arch/ia64/include/asm/bitops.h index 6ebc229a1c51..9da3df6f1a52 100644 --- a/arch/ia64/include/asm/bitops.h +++ b/arch/ia64/include/asm/bitops.h | |||
@@ -437,17 +437,18 @@ __fls (unsigned long x) | |||
437 | * hweightN: returns the hamming weight (i.e. the number | 437 | * hweightN: returns the hamming weight (i.e. the number |
438 | * of bits set) of a N-bit word | 438 | * of bits set) of a N-bit word |
439 | */ | 439 | */ |
440 | static __inline__ unsigned long | 440 | static __inline__ unsigned long __arch_hweight64(unsigned long x) |
441 | hweight64 (unsigned long x) | ||
442 | { | 441 | { |
443 | unsigned long result; | 442 | unsigned long result; |
444 | result = ia64_popcnt(x); | 443 | result = ia64_popcnt(x); |
445 | return result; | 444 | return result; |
446 | } | 445 | } |
447 | 446 | ||
448 | #define hweight32(x) (unsigned int) hweight64((x) & 0xfffffffful) | 447 | #define __arch_hweight32(x) ((unsigned int) __arch_hweight64((x) & 0xfffffffful)) |
449 | #define hweight16(x) (unsigned int) hweight64((x) & 0xfffful) | 448 | #define __arch_hweight16(x) ((unsigned int) __arch_hweight64((x) & 0xfffful)) |
450 | #define hweight8(x) (unsigned int) hweight64((x) & 0xfful) | 449 | #define __arch_hweight8(x) ((unsigned int) __arch_hweight64((x) & 0xfful)) |
450 | |||
451 | #include <asm-generic/bitops/const_hweight.h> | ||
451 | 452 | ||
452 | #endif /* __KERNEL__ */ | 453 | #endif /* __KERNEL__ */ |
453 | 454 | ||