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

[olegendo at gcc dot gnu.org]

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

--- Comment #102 from Oleg Endo <olegendo at gcc dot gnu.org> ---
(In reply to Kazumoto Kojima from comment #101)
> 
> I've forgotten that some atomic builtins fail with spill_failure
> in class 'R0_REGS' for old RA.  So libstdc++-v3 was configured
> so to undefine _GLIBCXX_ATOMIC_BUILTINS for old RA and we see
> the above difference.

Ah!  I always wondered why those failures disappeared from your nightly tests. 
Did you do this locally in your setup, or has this been committed at some time?