[Bug target/55212] [SH] Switch to LRA

[olegendo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55212

--- Comment #87 from Oleg Endo <olegendo at gcc dot gnu.org> ---
(In reply to Oleg Endo from comment #86)
> (In reply to Kazumoto Kojima from comment #85)
> > Created attachment 34135 [details]
> > patch to add -mlra option
> > 
> > I'd like to apply the patch to add a transitional option -mlra
> > like ARM and the revised patches in c#78 and c#83 on sh-lra branch
> > after merge from trunk.  It helps me a lot when building, comparing
> > and testing sh-lra compilers.
> 
> Sure, makes sense to me.  It's probably better to revert my commit r215244
> to reinstate reload on the sh-lra branch.

Sorry, your patch in attachment 34135 does that already of course.

We could also  try to merge the sh-lra branch into trunk for the gcc 5 release.
 If all the LRA changes are conditional and the code paths are not changed if
-mlra is not specified, it should be OK to do it.

Some of the changes could probably also be applied unconditionally, such as
r215241 and r215243.