RFC: LRA for x86/x86-64 [0/9]

[Steven Bosscher]

On Mon, Oct 1, 2012 at 12:14 PM, Jakub Jelinek <jakub@redhat.com> wrote:
> On Mon, Oct 01, 2012 at 12:01:36PM +0200, Steven Bosscher wrote:
>> I would also agree if it were not for the fact that IRA is already a
>> scalability bottle-neck and that has been known for a long time, too.
>> I have no confidence at all that if LRA goes in now, these scalability
>> problems will be solved in stage3 or at any next release cycle. It's
>> always the same thing with GCC: Once a patch is in, everyone moves on
>> to the next fancy new thing dropping the not-quite-broken but also
>> not-quite-working things on the floor.
>
> If we open a P1 bug for it for 4.8, then it will need to be resolved some
> way before branching.  I think Vlad is committed to bugfixing LRA, after
> all the intent is for 4.9 to enable it on more (all?) targets, and all the
> bugfixing and scalability work on LRA is needed for that anyway.

I don't question Vlad's commitment, but the last time I met him, he
only had two hands just like everyone else.

But I've made my point and it seems that I'm not voting with the majority.

Ciao!
Steven