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Date: Thu, 19 Sep 2013 07:53:00 -0000
From: Eli Zaretskii <eliz@gnu.org>
Subject: Re: [PATCH+DOC] Print registers not saved in the frame as "<not saved>", instead of "<optimized out>".
In-reply-to: <201309182047.r8IKlOGA010471@glazunov.sibelius.xs4all.nl>
To: Mark Kettenis <mark.kettenis@xs4all.nl>
Cc: palves@redhat.com, aburgess@broadcom.com, gdb-patches@sourceware.org
Reply-to: Eli Zaretskii <eliz@gnu.org>
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References: <5200F55E.2050308@broadcom.com> <201308061318.r76DIMdd016369@glazunov.sibelius.xs4all.nl> <5200FECF.7030304@broadcom.com> <201308061541.r76FfYQN022875@glazunov.sibelius.xs4all.nl> <520142D9.4030304@redhat.com> <5208E3C8.7060107@broadcom.com> <5208E938.3080305@redhat.com> <201308122001.r7CK1862007934@glazunov.sibelius.xs4all.nl> <520E7255.7080206@redhat.com> <5211F25A.5070907@broadcom.com> <5228B15F.7060108@redhat.com> <5228B2D8.7060604@broadcom.com> <5237567C.8050406@redhat.com> <5239B2D8.4030403@broadcom.com> <5239CCB3.605@redhat.com> <83zjram6sw.fsf@gnu.org> <201309182047.r8IKlOGA010471@glazunov.sibelius.xs4all.nl>
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> Date: Wed, 18 Sep 2013 22:47:24 +0200 (CEST)
> From: Mark Kettenis <mark.kettenis@xs4all.nl>
> CC: palves@redhat.com, aburgess@broadcom.com, gdb-patches@sourceware.org,
>         mark.kettenis@xs4all.nl
> 
> > Date: Wed, 18 Sep 2013 19:30:07 +0300
> > From: Eli Zaretskii <eliz@gnu.org>
> > 
> > Also, shouldn't we mention optimizations as (the main) reason for
> > registers being unavailable?
> 
> I don't consider optimisations as an important cause of registers not
> being saved.

The question is: does it happen in practice?  If it does, I think we
should mention that, because it's important to let the users know that
recompiling without optimizations might remove this nuisance.