K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2016-01-19T08:04:02.465323Z
K 7
svn:log
V 399
Clear whole XMM register file instead of only XMM0.  Also clear x87
registers.  This brings amd64 on par with i386, providing consistent
initial FPU state.

Note that we do not clear any extended state, at least because kernel
does not understand extended state structure and consequences of zero
overwrite after fninit()/fpusave().

Submitted by:	joss.upton@yahoo.com
PR:	206370
MFC after:	2 weeks

END