Changeset View

Standalone View

Show First 20 Lines • Show All 46 Lines • ▼ Show 20 Lines	_mm_crc32_u8(uint32_t x, uint8_t y)
* local variable (on the stack or in a register), so only use		* local variable (on the stack or in a register), so only use
* the latter. This costs a register and an instruction but		* the latter. This costs a register and an instruction but
* not a uop.		* not a uop.
*/		*/
__asm("crc32b %1,%0" : "+r" (x) : "r" (y));		__asm("crc32b %1,%0" : "+r" (x) : "r" (y));
return (x);		return (x);
}		}

static __inline uint32_t		#ifdef __amd64__
_mm_crc32_u32(uint32_t x, uint32_t y)
{
__asm("crc32l %1,%0" : "+r" (x) : "r" (y));
return (x);
}

static __inline uint64_t		static __inline uint64_t
_mm_crc32_u64(uint64_t x, uint64_t y)		_mm_crc32_u64(uint64_t x, uint64_t y)
{		{
__asm("crc32q %1,%0" : "+r" (x) : "r" (y));		__asm("crc32q %1,%0" : "+r" (x) : "r" (y));
return (x);		return (x);
}		}
		#else
		static __inline uint32_t
		_mm_crc32_u32(uint32_t x, uint32_t y)
		{
		__asm("crc32l %1,%0" : "+r" (x) : "r" (y));
		return (x);
		}
		#endif

/* CRC-32C (iSCSI) polynomial in reversed bit order. */		/* CRC-32C (iSCSI) polynomial in reversed bit order. */
#define POLY 0x82f63b78		#define POLY 0x82f63b78

/*		/*
* Block sizes for three-way parallel crc computation. LONG and SHORT must		* Block sizes for three-way parallel crc computation. LONG and SHORT must
* both be powers of two.		* both be powers of two.
*/		*/
▲ Show 20 Lines • Show All 304 Lines • Show Last 20 Lines