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From: Kilgallen@SpamCop.net (Larry Kilgallen)
Newsgroups: comp.lang.ada
Subject: Re: Large arrays (again), problem case for GNAT
Date: 13 Apr 2005 08:10:49 -0500
Organization: LJK Software
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References: <pan.2005.04.13.12.46.52.518681@linuxchip.demon.co.uk.uk.uk>
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Date: 2005-04-13T08:10:49-05:00
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In article <pan.2005.04.13.12.46.52.518681@linuxchip.demon.co.uk.uk.uk>, "Dr. Adrian Wrigley" <amtw@linuxchip.demon.co.uk.uk.uk> writes:
> Hi guys!
> 
> A month or two back I hinted that I had been having problems
> the GNAT code accessing large data structures.  It seemed that
> incorrect code was silently being generated.  Since I didn't
> have a test case available, no progress could be made.
> 
> I have encountered the problem again, and produced a test case.
> 
> In summary:
> 
> Certain uses of arrays over about 800MB cause code to fail.
> In particular, 'Address is sometimes incorrect
> Accessing high elements is incorrect, depending on exact code to
>   generate the index.
> 
> The problems only seem to occur if the upper bound of the array
> is compile-time constant.
> 
> Can someone test this on later versions of GNAT please?

Later than what ?