diff options
Diffstat (limited to 'ANDROID_3.4.5/include/asm-generic/bitops/const_hweight.h')
-rw-r--r-- | ANDROID_3.4.5/include/asm-generic/bitops/const_hweight.h | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/ANDROID_3.4.5/include/asm-generic/bitops/const_hweight.h b/ANDROID_3.4.5/include/asm-generic/bitops/const_hweight.h deleted file mode 100644 index fa2a50b7..00000000 --- a/ANDROID_3.4.5/include/asm-generic/bitops/const_hweight.h +++ /dev/null @@ -1,42 +0,0 @@ -#ifndef _ASM_GENERIC_BITOPS_CONST_HWEIGHT_H_ -#define _ASM_GENERIC_BITOPS_CONST_HWEIGHT_H_ - -/* - * Compile time versions of __arch_hweightN() - */ -#define __const_hweight8(w) \ - ( (!!((w) & (1ULL << 0))) + \ - (!!((w) & (1ULL << 1))) + \ - (!!((w) & (1ULL << 2))) + \ - (!!((w) & (1ULL << 3))) + \ - (!!((w) & (1ULL << 4))) + \ - (!!((w) & (1ULL << 5))) + \ - (!!((w) & (1ULL << 6))) + \ - (!!((w) & (1ULL << 7))) ) - -#define __const_hweight16(w) (__const_hweight8(w) + __const_hweight8((w) >> 8 )) -#define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16)) -#define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32)) - -/* - * Generic interface. - */ -#define hweight8(w) (__builtin_constant_p(w) ? __const_hweight8(w) : __arch_hweight8(w)) -#define hweight16(w) (__builtin_constant_p(w) ? __const_hweight16(w) : __arch_hweight16(w)) -#define hweight32(w) (__builtin_constant_p(w) ? __const_hweight32(w) : __arch_hweight32(w)) -#define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w)) - -/* - * Interface for known constant arguments - */ -#define HWEIGHT8(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight8(w)) -#define HWEIGHT16(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight16(w)) -#define HWEIGHT32(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight32(w)) -#define HWEIGHT64(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight64(w)) - -/* - * Type invariant interface to the compile time constant hweight functions. - */ -#define HWEIGHT(w) HWEIGHT64((u64)w) - -#endif /* _ASM_GENERIC_BITOPS_CONST_HWEIGHT_H_ */ |