http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52941
--- Comment #8 from Kazumoto Kojima <kkojima at gcc dot gnu.org> 2012-04-17 00:54:00 UTC --- (In reply to comment #7) > Created attachment 27173 [details] > Proposed patch Looks even better. > Only one thing ... is it safe to do the > "@-r15", "@+r15" stuff in the atomic sequence? I remember there were some > border cases where things would blow up, but can't recall. I've also briefly > checked with atomic vars being on the stack and it looks OK. I don't know about such restrictions, though my knowledge of SH4A is very limited. Perhaps some weired interaction of ll/sc and cache? Anyway, if it's a border issue, the patch is OK. I'd like to pre-approve it.
