FRV: Use generic show_interrupts()
[cris-mirror.git] / include / asm-generic / bitops / const_hweight.h
blobfa2a50b7ee660c774313e20f0027302bfb0b495c
1 #ifndef _ASM_GENERIC_BITOPS_CONST_HWEIGHT_H_
2 #define _ASM_GENERIC_BITOPS_CONST_HWEIGHT_H_
4 /*
5 * Compile time versions of __arch_hweightN()
6 */
7 #define __const_hweight8(w) \
8 ( (!!((w) & (1ULL << 0))) + \
9 (!!((w) & (1ULL << 1))) + \
10 (!!((w) & (1ULL << 2))) + \
11 (!!((w) & (1ULL << 3))) + \
12 (!!((w) & (1ULL << 4))) + \
13 (!!((w) & (1ULL << 5))) + \
14 (!!((w) & (1ULL << 6))) + \
15 (!!((w) & (1ULL << 7))) )
17 #define __const_hweight16(w) (__const_hweight8(w) + __const_hweight8((w) >> 8 ))
18 #define __const_hweight32(w) (__const_hweight16(w) + __const_hweight16((w) >> 16))
19 #define __const_hweight64(w) (__const_hweight32(w) + __const_hweight32((w) >> 32))
22 * Generic interface.
24 #define hweight8(w) (__builtin_constant_p(w) ? __const_hweight8(w) : __arch_hweight8(w))
25 #define hweight16(w) (__builtin_constant_p(w) ? __const_hweight16(w) : __arch_hweight16(w))
26 #define hweight32(w) (__builtin_constant_p(w) ? __const_hweight32(w) : __arch_hweight32(w))
27 #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) : __arch_hweight64(w))
30 * Interface for known constant arguments
32 #define HWEIGHT8(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight8(w))
33 #define HWEIGHT16(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight16(w))
34 #define HWEIGHT32(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight32(w))
35 #define HWEIGHT64(w) (BUILD_BUG_ON_ZERO(!__builtin_constant_p(w)) + __const_hweight64(w))
38 * Type invariant interface to the compile time constant hweight functions.
40 #define HWEIGHT(w) HWEIGHT64((u64)w)
42 #endif /* _ASM_GENERIC_BITOPS_CONST_HWEIGHT_H_ */