http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52110
--- Comment #2 from dave.anglin at bell dot net 2012-02-04 01:40:27 UTC --- Attached is a possible patch. On "most" PARISC machines, reads and writes are strongly ordered and possibly this meets the "atomic" requirement. -- John David Anglin dave.ang...@bell.net