[Bug target/39423] [4.6/4.7/4.8 Regression] [SH] performance regression: lost mov @(disp,Rn)

[chrbr at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39423

--- Comment #26 from chrbr at gcc dot gnu.org 2012-08-10 08:08:45 UTC ---
(In reply to comment #24)
> Christian, do you have anything to add regarding this matter?
> 
> I'm not sure whether this should be back ported to 4.6.x or 4.7.x or not.  Kaz,
> what do you think?

I got an ICE in elimination_costs_in_insn, at reload1.c:3654 when applying to
the 4.7 branch, but it seems to be resolved on trunk (hoping it's not hidden)
so I guess you can close this defect as resolved.

I'm about to submit a separate patch for the second opportunity I mentioned in
comment #17, as soon as it's polished up and I can assess some performance.