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[Bug tree-optimization/40436] [4.5 regression] 0.5% code size regression caused by r147852
- From: "hubicka at ucw dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 28 Mar 2010 16:56:29 -0000
- Subject: [Bug tree-optimization/40436] [4.5 regression] 0.5% code size regression caused by r147852
- References: <bug-40436-374@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- 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 :)
>
>
> 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.
Honza
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40436