From: Joseph Myers <joseph@codesourcery.com>
To: Matthias Gehre <matthias.gehre@amd.com>
Cc: "gcc@gcc.gnu.org" <gcc@gcc.gnu.org>
Subject: Re: AW: [RFC] Adding division/modulo on arbitrary precision integers to libgcc
Date: Fri, 6 May 2022 16:02:48 +0000 [thread overview]
Message-ID: <alpine.DEB.2.22.394.2205061601330.937576@digraph.polyomino.org.uk> (raw)
In-Reply-To: <SA1PR02MB8573828B7E9EDCE897DDBACFA7C59@SA1PR02MB8573.namprd02.prod.outlook.com>
On Fri, 6 May 2022, Matthias Gehre via Gcc wrote:
> > This proposed interface doesn't say anything about what aliasing is or
> > isn't permitted among the four arrays pointed to.
> Good catch. I would lean into saying that none of the four arrays must alias
> because allowing them to alias would require most implementations to allocate
> extra scratch space.
> What do you think?
Given that all four arrays can be written to, that seems reasonable (along
with declaring them all as "restrict").
--
Joseph S. Myers
joseph@codesourcery.com
next prev parent reply other threads:[~2022-05-06 16:02 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-06 14:09 Matthias Gehre
2022-05-06 14:36 ` Joseph Myers
2022-05-06 15:57 ` AW: " Matthias Gehre
2022-05-06 16:02 ` Joseph Myers [this message]
2022-05-06 14:47 ` Jakub Jelinek
2022-05-06 15:23 ` Joseph Myers
2022-05-06 15:42 ` AW: " Matthias Gehre
2022-05-06 16:39 ` Jonathan Lennox
2022-05-06 18:05 ` Segher Boessenkool
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