Konstantin Belousov fa9f322df9 Use plain store for atomic_store_rel on x86, instead of implicitly
locked xchg instruction.  IA32 memory model guarantees that store has
release semantic, since stores cannot pass loads or stores.

Reviewed by:	  bde, jhb
Tested by:	  pho
MFC after:	  2 weeks
2012-06-02 18:10:16 +00:00
..
2012-05-23 21:07:01 +00:00
2012-03-30 19:10:14 +00:00