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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: Performance of records with variant parts
Date: Tue, 23 Mar 2021 14:27:33 +0000
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"Jeffrey R. Carter" <spam.jrcarter.not@spam.not.acm.org> writes:

> If you want to look into this further, IIRC, there is an option that
> will output a low-level, Ada-like description of the IR that the front
> end produces. You'll have to look in the top-secret GNAT documentation
> to find it.

-gnatG (-gnatGnn to output in lines up to nn long, vs default 72) to
 stdout

-gnatD (-gnatDnn likewise). The help (gnatmake --help) suggests it's for
 debug, but the main difference I see is that the output is to
 <input>.dg, e.g. foo.adb.dg