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From: Eric Botcazou <botcazou@adacore.com>
To: Richard Biener <richard.guenther@gmail.com>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH] Fix bogus -Wstringop-overflow warning in Ada
Date: Thu, 18 Aug 2022 16:47:28 +0200	[thread overview]
Message-ID: <3120260.5fSG56mABF@arcturus> (raw)
In-Reply-To: <CAFiYyc32dW4qadKR-3xXC36SVtiDGs3xgr8Bp6fQP5-uhtVSOQ@mail.gmail.com>

> Hmm :/  But that means we _should_ force a sign extension but only
> from ptrofftype_p ()?  That is, your test above should maybe read
> 
>    signop sgn = TYPE_SIGN (type);
>    if (ptrofftype_p (type))
>      sgn = SIGNED;
> 
> assuming 'type' is the type of lowbnd

Yes, that's essentially equivalent to what get_offset_range does, but I'm not 
sure why having two slightly different ways of doing it would be better than a 
single one here,   Maybe replace the call to get_precision in both places with 
TYPE_PRECSION (type) then?

-- 
Eric Botcazou




  reply	other threads:[~2022-08-18 14:46 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-16 13:56 Eric Botcazou
2022-08-17 11:27 ` Richard Biener
2022-08-17 13:38   ` Eric Botcazou
2022-08-18  7:30     ` Richard Biener
2022-08-18  7:55       ` Eric Botcazou
2022-08-18  9:22         ` Richard Biener
2022-08-18 14:47           ` Eric Botcazou [this message]
2022-08-19  7:30             ` Richard Biener

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