lto optimization

[Oleg Endo]

On Wed, 2016-05-04 at 14:24 +0200, Aurelien Buhrig wrote:

> Thanks for your reply.
> lto pass is correctly done. Maybe I would try upgrading the backend
> to
> a newer version, but it is a quite important workload...

LTO works almost in a target independent way.  You can try using a
newer GCC version for a public target and see if it gives you the
desired result.  If so, upgrading might be a good alternative.  Often
you can just copy-paste your backend without major changes.  Unless of
course changes to other parts of the compiler have been made.

Cheers,
Oleg