On Wed, Apr 06, 2016 at 05:07:27PM +0800, zengzhaoxiu@xxxxxxx wrote:
> +static inline unsigned int __arch_parity4(unsigned int w)
> + return (0x6996 >> w) & 1;
> +ENTRY(__arch_parity8)
> + sethi %hi(0x6996), %g1
> + or %g1, %lo(0x6996), %g1
> +ENTRY(__arch_parity16)
> + sethi %hi(0x6996), %g1
> + or %g1, %lo(0x6996), %g1
> +ENTRY(__arch_parity32)
> + sethi %hi(0x6996), %g1
> + or %g1, %lo(0x6996), %g1
> +ENTRY(__arch_parity64)
> + sethi %hi(0x6996), %g1
> + or %g1, %lo(0x6996), %g1
Given how many times the magic constant is repeated, maybe it would make
sense to give it a name?
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