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kp
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2020-07-01T19:12:47.378235Z
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riscv locore.S: load constant prior to loop

A very minor micro-optimization; t0 is not clobbered between the loop top and
bottom and there appear to be no other branches to this label.

Submitted by:	Nathaniel Filardo <nwf20@cl.cam.ac.uk>
Reviewed by:	mhorne
Differential Revision:	https://reviews.freebsd.org/D25524

END