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[Bug bootstrap/14671] [3.3/3.4 regression] caller-save.c:491: internal compiler error: Segmentation fault
- From: "gdr at integrable-solutions dot net" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 27 May 2004 03:55:59 -0000
- Subject: [Bug bootstrap/14671] [3.3/3.4 regression] caller-save.c:491: internal compiler error: Segmentation fault
- References: <20040321182857.14671.danglin@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From gdr at integrable-solutions dot net 2004-05-27 03:55 -------
Subject: Re: [3.3/3.4 regression] caller-save.c:491: internal compiler error: Segmentation fault
"pinskia at physics dot uc dot edu" <gcc-bugzilla@gcc.gnu.org> writes:
| Subject: Re: [3.3/3.4 regression] caller-save.c:491: internal compiler error: Segmentation fault
|
|
| On May 26, 2004, at 23:38, dave at hiauly1 dot hia dot nrc dot ca wrote:
|
| > If you look at the comment in ggc-page.c for lookup_page_table_entry,
| > you will see that it says "Die (probably) if the object wasn't
| > allocated
| > via GC." The patch in question didn't create the object that caused
| > the ICE. Thus, as I indicated previously, more information is needed
| > about the object that caused the ICE, and how and when it was added
| > to the alias_invariant array.
|
| > Richard has indicated that the regression isn't present on 3.4, yet it
| > has essentially the same change. If we revert this on 3.5, the pa and
| > alpha won't build. The build problems are critical for these ports.
|
|
| I think this was fixed lately on the mainline fully by:
| <http://gcc.gnu.org/ml/gcc-patches/2004-05/msg01413.html>.
Andrew --
Thanks for the detective work.
| Could someone test the backport of this patch, ggc_free can be safely
| removed as it is an optimization
Richard --
Can you try that? If it works, I'll apply it immediately, plus
Eric's patch. Whic I suppose would resolve this very interesting
issue.
(And any Alpha expert around is also needed :-))
-- Gaby
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14671