http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52483
--- Comment #3 from Kazumoto Kojima <kkojima at gcc dot gnu.org> 2012-09-18 12:25:52 UTC --- (In reply to comment #2) > If that is the only reason for rejecting volatile mems, then I think it would > be OK to match volatile mems in the load/store expanders for SH, since there > are no arithmetic insns that take mems anyway (except for some GBR byte mem > modification insns, which aren't used in the backend). > Kaz, does this make sense? Yep, though I'm not sure whether that is the only reason or not. Please go ahead and see the effect.
