mjg 727addc7d9 amd64: relax constraints in curthread and curpcb
This makes the compiler less likely to reload the content from %gs.

The 'P' modifier drops all synteax prefixes and 'n' constraint treats
input as a known at compilation time immediate integer.

Example reloading victim was spinlock_enter.

Stolen from:	OpenBSD

Reported by:	jtl
Reviewed by:	kib
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D17615
2018-10-20 17:00:18 +00:00
..
2018-03-20 17:58:51 +00:00
2018-07-29 20:47:00 +00:00
2018-03-20 17:58:51 +00:00