[Bug tree-optimization/40436] [4.5 regression] 0.5% code size regression caused by r147852

[rguenther at suse dot de]

------- Comment #20 from rguenther at suse dot de  2010-03-28 17:00 -------
Subject: Re:  [4.5 regression] 0.5% code size
 regression caused by r147852

On Sun, 28 Mar 2010, hubicka at ucw dot cz wrote:

> ------- Comment #19 from hubicka at ucw dot cz  2010-03-28 16:56 -------
> Subject: Re:  [4.5 regression] 0.5% code size
>         regression caused by r147852
> 
> > > > There is also some miscounting of overall unit size, Micha has a patch for
> > > > that (but it completely chokes tramp3d results).  There is also the
> > > 
> > > Where is the patch?
> > 
> > Somewhere - you have to as Micha.
> 
> I think I saw one but it was wrong.  I would be interested to at least know
> what this patch is about :)

It's about not accounting static called once functions twice when
decreasing overall unit size.

> > In theory not.  In practice it removes the iteration if I remember
> > correctly.
> 
> Yes, but that should not affect the metrics (hopefully)
> Anyway the 4.6 inliner will probably again behave quite differently - I want to
> get FRE
> early, possibly get partial inlining done and we will have IPA AA that all
> affects effectivity
> of inlining.

Of course.

Richard.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40436