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[Bug target/17428] [4.0 Regression] internal compiler error: in spill_failure, at reload1.c:1880
- From: "rakdver at atrey dot karlin dot mff dot cuni dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 14 Sep 2004 21:09:41 -0000
- Subject: [Bug target/17428] [4.0 Regression] internal compiler error: in spill_failure, at reload1.c:1880
- References: <20040912034129.17428.opticcow@linux-militia.net>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From rakdver at atrey dot karlin dot mff dot cuni dot cz 2004-09-14 21:09 -------
Subject: Re: [4.0 Regression] internal compiler error: in spill_failure, at reload1.c:1880
Hello,
> I would assume that this is caused by:
> 2004-09-05 Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>
>
> * tree-ssa-loop-ivopts.c: New file.
> ....
>
> But then again this most likely can be produced ealier than that or maybe not.
>
> One thing I noticed though is that "&a[0] + 8B" not folded to &a[2]
> which might improve the issue.
I doubt this is the case; both &a[2] and "&a[0] + 8B" should produce
identical rtl (and anyway, there is nothing wrong with &a[0] + 8B,
so I guess the problem must be elsewhere).
I will check tomorrow.
Zdenek
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17428