From: David Woodhouse <dwmw2@infradead.org>
To: Jani Nikula <jani.nikula@intel.com>,
David Howells <dhowells@redhat.com>,
"Eric W. Biederman" <ebiederm@xmission.com>
Cc: ksummit-discuss@lists.linuxfoundation.org
Subject: Re: [Ksummit-discuss] [CORE TOPIC] More useful types in the linux kernel
Date: Thu, 04 Aug 2016 12:31:52 +0100 [thread overview]
Message-ID: <1470310312.51922.25.camel@infradead.org> (raw)
In-Reply-To: <87poprsaza.fsf@intel.com>
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On Tue, 2016-08-02 at 13:48 +0300, Jani Nikula wrote:
> On Thu, 21 Jul 2016, David Howells <dhowells@redhat.com> wrote:
> > (3) Let's use bool a lot more for boolean values as the compiler might be
> > able to make better choices with it.
>
> This would be particularly useful for boolean one-bit struct bitfield
> flags (not least because assigning any positive even number to unsigned
> int foo:1 will result in 0) *but* we've found gcc produces worse code
> for bool:1 in our case. Details at [1].
>
> BR,
> Jani.
>
>
> [1] http://patchwork.freedesktop.org/patch/msgid/1463148278-23193-1-git-send-email-jani.nikula@intel.com
In that entire discussion I don't see any mention of a GCC PR being
filed.
Why?
--
David Woodhouse Open Source Technology Centre
David.Woodhouse@intel.com Intel Corporation
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next prev parent reply other threads:[~2016-08-04 11:32 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-19 15:32 [Ksummit-discuss] [CORE TOPIC] More useful types in the linux kernel Eric W. Biederman
2016-07-19 17:31 ` Mark Brown
2016-07-19 18:52 ` Jiri Kosina
2016-07-19 20:39 ` Eric W. Biederman
2016-07-20 15:53 ` Mark Brown
2016-07-20 17:04 ` [Ksummit-discuss] [CORE TOPIC] [TECH TOPIC] Support (or move towards to) LLVM Jiri Kosina
2016-07-20 18:35 ` Alexey Dobriyan
2016-07-20 18:52 ` Mark Brown
2016-07-21 9:54 ` David Woodhouse
2016-07-21 13:41 ` Shuah Khan
2016-07-21 14:02 ` David Woodhouse
2016-07-21 16:21 ` Mark Brown
2016-07-23 3:28 ` Behan Webster
2016-07-21 18:38 ` Jiri Kosina
2016-07-21 20:47 ` Paul Turner
2016-07-26 11:22 ` David Woodhouse
2016-07-19 21:08 ` [Ksummit-discuss] [CORE TOPIC] More useful types in the linux kernel James Bottomley
2016-07-20 0:08 ` Eric W. Biederman
2016-07-20 7:32 ` Julia Lawall
2016-07-20 12:11 ` Jan Kara
2016-07-28 3:33 ` Steven Rostedt
2016-07-19 21:26 ` Josh Triplett
2016-07-20 2:36 ` Eric W. Biederman
2016-07-30 18:03 ` Eric W. Biederman
2016-07-30 18:49 ` Josh Triplett
2016-07-30 19:34 ` Eric W. Biederman
2016-07-30 20:56 ` Josh Triplett
2016-07-30 22:21 ` Eric W. Biederman
2016-07-21 15:05 ` David Howells
2016-07-21 23:33 ` Dmitry Torokhov
2016-07-22 6:00 ` Hannes Reinecke
2016-07-22 6:14 ` Julia Lawall
2016-07-22 13:57 ` Hannes Reinecke
2016-07-22 14:40 ` Julia Lawall
2016-07-22 19:12 ` Arnd Bergmann
2016-07-26 11:48 ` David Woodhouse
2016-07-26 12:53 ` Hannes Reinecke
2016-07-26 13:59 ` Alexey Dobriyan
2016-07-26 13:53 ` Alexey Dobriyan
2016-07-27 12:40 ` Julia Lawall
2016-07-27 13:25 ` James Bottomley
2016-07-27 13:33 ` David Woodhouse
2016-07-27 17:21 ` Bird, Timothy
2016-08-01 22:17 ` Rob Herring
2016-08-12 1:29 ` Stephen Boyd
2016-08-11 15:44 ` Dan Carpenter
2016-08-12 0:38 ` NeilBrown
2016-08-12 20:56 ` Dan Carpenter
2016-08-12 3:51 ` Matthew Wilcox
2016-08-12 4:01 ` Josh Triplett
2016-08-12 4:07 ` Matthew Wilcox
2016-08-12 5:29 ` Alexey Dobriyan
2016-08-12 5:38 ` Michael S. Tsirkin
2016-08-12 6:04 ` Julia Lawall
2016-08-12 6:09 ` Michael S. Tsirkin
2016-08-12 6:23 ` Matthew Wilcox
2016-08-12 6:37 ` Julia Lawall
2016-08-12 5:50 ` Matthew Wilcox
2016-08-04 7:15 ` NeilBrown
2016-08-04 11:19 ` Julia Lawall
2016-07-22 7:03 ` David Howells
2016-07-22 10:10 ` Alexey Dobriyan
2016-07-22 10:13 ` David Howells
2016-07-22 10:22 ` Alexey Dobriyan
2016-07-22 10:53 ` Vlastimil Babka
2016-07-22 11:05 ` David Howells
2016-07-22 17:18 ` Julia Lawall
2016-07-22 18:19 ` Dmitry Torokhov
2016-07-22 19:43 ` Guenter Roeck
2016-07-28 3:40 ` Steven Rostedt
2016-07-28 7:12 ` David Howells
2016-08-02 10:48 ` Jani Nikula
2016-08-04 11:31 ` David Woodhouse [this message]
2016-08-04 12:07 ` Jani Nikula
2016-07-22 11:19 ` David Howells
2016-07-22 12:44 ` Linus Walleij
2016-07-22 13:26 ` David Howells
2016-08-12 4:42 ` Michael S. Tsirkin
[not found] ` <871t1ulfvz.fsf@notabene.neil.brown.name>
2016-08-12 5:34 ` Michael S. Tsirkin
2016-08-12 6:23 ` NeilBrown
[not found] ` <87y442jytb.fsf@notabene.neil.brown.name>
2016-08-15 23:26 ` Michael S. Tsirkin
2016-08-12 6:23 ` NeilBrown
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