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

[olegendo at gcc dot gnu.org]

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

--- Comment #96 from Oleg Endo <olegendo at gcc dot gnu.org> ---
(In reply to Kazumoto Kojima from comment #95)
> 
> I think that it's OK to make LRA default on trunk, even if it's
> better with your R0 pre-allocating pass.

The R0 pre-alloc pass could be a further improvement, even with LRA.

> The last time I tested -mlra, there are some regressions, though.
> I'd like to test it again.  Could you see any serious problems on
> sh-elf with -mlra?

I haven't tried yet.  I will do a full toolchain rebuild and test with -mlra
enabled by default.