[Bug target/17428] [4.0 Regression] internal compiler error: in spill_failure, at reload1.c:1880

rakdver at atrey dot karlin dot mff dot cuni dot cz gcc-bugzilla@gcc.gnu.org
Tue Sep 14 21:09:00 GMT 2004


------- 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


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17428



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