K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2018-11-15T20:28:35.403466Z
K 7
svn:log
V 258
amd64: sync up libc memset with the kernel version

- tidy up memset to have rax set earlier for small sizes
- finish the tail in memset with an overlapping store
- align memset buffers to 16 bytes before using rep stos

Sponsored by:	The FreeBSD Foundation

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