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From: "Ludovic Brenta" <ludovic@ludovic-brenta.org>
Newsgroups: comp.lang.ada
Subject: Re: Possibly fixed in gcc 4.1.1,
 but bug box -- Was: Re: A smaller self contained test case ...
Date: 28 Jun 2006 01:41:53 -0700
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Date: 2006-06-28T01:41:53-07:00
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Alex R. Mosteo a =E9crit :
> Last time I heard, Ada is not a release criterion for gcc. As I understand
> it, this means that the gcc version, even if GMGPL, can be in any state. =
It
> could be perfectly ok yesterday, and today be broken in subtle ways, and
> this wouldn't alter the gcc releasing schedule.

True, Ada is not a release criterion, but GCC _is_ stable, because
AdaCore still follows the rules of development in GCC. They merge most
of their changes during Stage 1; in Stage 2 and Stage 3, only bug fixes
are accepted into the compiler. So, GCC 4.1 is quite useable and
appropriate for most purposes; Robert Dewar himself confirmed so,
verbally, during FOSDEM.

> It's for this reason, coupled with the fact that AdaCore endorsed versions
> use 3.4.6 as backend and not 4.x, and with the fact that gnat is enduring
> heavy changes due to the addition of 2005 features, that I hold very low
> expectatives on the gcc-gnat, for the time being.

Yes, GNAT Pro and GNAT GPL still use the 3.4.6 backend. There were
glitches in GCC 4.0 due to the introduction of tree-ssa, but these are
now resolved in 4.1.

--=20
Ludovic Brenta.