From: Jan Hubicka <hubicka@ucw.cz>
To: Hans-Peter Nilsson <hp@bitrange.com>
Cc: Jan Hubicka <hubicka@ucw.cz>, gcc-patches@gcc.gnu.org
Subject: Re: Cgraph alias reorg 15/14 (New infrastructure for same body aliases)
Date: Sun, 19 Jun 2011 12:55:00 -0000 [thread overview]
Message-ID: <20110619124502.GA1199@kam.mff.cuni.cz> (raw)
In-Reply-To: <alpine.BSF.2.00.1106190806320.6820@dair.pair.com>
> On Sat, 11 Jun 2011, Jan Hubicka wrote:
>
> > Hi,
> > this patch complettes the same body alias rework by removing the old same body
> > alias code and adding new representation. Same body aliases are now separate
> > function nodes that have IPA_REF_ALIAS reference to the node they are alias of.
> >
> > I am still getting one failure:
> > FAIL: g++.dg/torture/pr43879-1_1.C
> >
> > It tests IPA PTA in presence of same body aliases. I honestly have no idea
> > what is wrong there. I decided to go ahead with the patch anyway, given the
> > current state of affair of aliases and IPA-PTA. Hope Richard will help me
> > fixing this on Monday.
>
> Still there, see again PR49373. Anything better than a xfail in the works?
Yes, we discussed the problem with Richi and the issue is that ipa-pta gets
confused by inliner redirecting edge from alias to the real inline clone.
The proper fix is to teach passmanager to do small ipa passes before final
compilation. I am currently at the GCC gathering, so I plan to implement
this day after tomorrow after returning.
Honza
>
> brgds, H-P
next prev parent reply other threads:[~2011-06-19 12:45 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-11 14:22 Jan Hubicka
2011-06-11 17:31 ` H.J. Lu
2011-06-12 9:02 ` H.J. Lu
2011-06-12 15:08 ` Jan Hubicka
2011-06-12 15:45 ` H.J. Lu
2011-06-12 15:55 ` Jan Hubicka
2011-06-12 16:33 ` H.J. Lu
2011-06-12 16:29 ` H.J. Lu
2011-06-12 17:06 ` Jan Hubicka
2011-06-12 17:46 ` H.J. Lu
2011-06-12 17:13 ` Jan Hubicka
2011-06-12 18:07 ` H.J. Lu
2011-06-12 22:11 ` Jan Hubicka
2011-06-19 12:52 ` Hans-Peter Nilsson
2011-06-19 12:55 ` Jan Hubicka [this message]
2011-06-19 14:04 ` Jan Hubicka
2011-06-20 11:23 ` Richard Guenther
2011-06-20 14:47 ` Hans-Peter Nilsson
2011-06-22 21:54 ` Hans-Peter Nilsson
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