From: Michael Meissner <meissner@linux.ibm.com>
To: Jakub Jelinek <jakub@redhat.com>
Cc: Michael Meissner <meissner@linux.ibm.com>,
Richard Biener <rguenther@suse.de>,
"Joseph S. Myers" <joseph@codesourcery.com>,
Jeff Law <jeffreyalaw@gmail.com>,
gcc-patches@gcc.gnu.org, FX <fxcoudert@gmail.com>
Subject: Re: [PATCH] Implement __builtin_issignaling
Date: Fri, 26 Aug 2022 13:25:35 -0400 [thread overview]
Message-ID: <YwkCD/l1lytCLlFn@toto.the-meissners.org> (raw)
In-Reply-To: <YwfT4nTF6Kwt0GAd@tucnak>
On Thu, Aug 25, 2022 at 09:56:18PM +0200, Jakub Jelinek wrote:
> On Thu, Aug 25, 2022 at 03:23:12PM -0400, Michael Meissner wrote:
> > On Mon, Aug 15, 2022 at 12:12:02PM +0200, Jakub Jelinek via Gcc-patches wrote:
> > > Hi!
> > >
> > > The following patch implements a new builtin, __builtin_issignaling,
> > > which can be used to implement the ISO/IEC TS 18661-1 issignaling
> > > macro.
> >
> > I haven't looked in detail at the patch, but from the description I think it
> > needs a way for machine dependent parts to optimize this for a given mode when
> > various switches are used.
>
> There is an optab which takes priority over the generic code.
> So if you have something better than the generic expansion, feel free to add
> the named pattern(s).
> Currently it is used just on x86 for xf mode.
That is good to know. When I looked into before, I didn't notice there was an
optab for the case.
--
Michael Meissner, IBM
PO Box 98, Ayer, Massachusetts, USA, 01432
email: meissner@linux.ibm.com
prev parent reply other threads:[~2022-08-26 17:25 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-15 10:12 Jakub Jelinek
2022-08-15 11:24 ` Richard Biener
2022-08-15 11:47 ` Jakub Jelinek
2022-08-15 12:04 ` Andreas Schwab
2022-08-15 12:07 ` Richard Biener
2022-08-15 13:06 ` Jakub Jelinek
2022-08-16 11:33 ` Jakub Jelinek
2022-08-16 11:41 ` Richard Biener
2022-08-16 11:57 ` Jakub Jelinek
2022-08-16 12:04 ` Richard Biener
2022-08-23 7:58 ` Patch ping (Re: [PATCH] Implement __builtin_issignaling) Jakub Jelinek
2022-08-23 18:23 ` Joseph Myers
2022-08-23 19:21 ` [PATCH] v2: Implement __builtin_issignaling Jakub Jelinek
2022-08-15 16:14 ` [PATCH] " FX
2022-08-15 16:23 ` Jakub Jelinek
2022-08-15 20:52 ` Uros Bizjak
2022-08-25 19:23 ` Michael Meissner
2022-08-25 19:56 ` Jakub Jelinek
2022-08-26 17:25 ` Michael Meissner [this message]
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