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

[kkojima at gcc dot gnu.org]

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

--- Comment #36 from Kazumoto Kojima <kkojima at gcc dot gnu.org> ---
(In reply to Oleg Endo from comment #35)
> I'm just wondering ... how did/does that work without LRA (i.e. with IRA)?

I'm not sure about the old reload.  LRA makes only 3 uses of r0 and it's
relatively easy to see what is going on there with .reload comments.
The old reload makes many uses of r0 and it looks not easy to see how
does that work.