On Sun, Sep 30, 2012 at 06:50:50PM -0400, Vladimir Makarov wrote:
> But I think that LRA cpu time problem for this test can be fixed.
> But I don't think I can fix it for 2 weeks. So if people believe
> that current LRA behaviour on this PR is a stopper to include it
> into gcc4.8 than we should postpone its inclusion until gcc4.9 when
> I hope to fix it.
I think this testcase shouldn't be a show stopper for LRA inclusion into
4.8, but something to look at for stage3.
I think a lot of GCC passes have scalability issues on that testcase,
that is why it must be compiled with -O1 and not higher optimization
options, so perhaps it would be enough to choose a faster algorithm
generating worse code for the huge functions and -O1.
And I agree it is primarily a bug in the generator that it creates such huge
functions, that can't perform very well.
Jakub
