From: David Laight <David.Laight@ACULAB.COM>
To: 'Nick Desaulniers' <ndesaulniers@google.com>,
Josh Don <joshdon@google.com>
Cc: Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>, "Mel Gorman" <mgorman@suse.de>,
Daniel Bristot de Oliveira <bristot@redhat.com>,
Nathan Chancellor <nathan@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
clang-built-linux <clang-built-linux@googlegroups.com>,
Clement Courbet <courbet@google.com>,
Oleg Rombakh <olegrom@google.com>,
Bill Wendling <morbo@google.com>
Subject: RE: [PATCH v2] sched: Optimize __calc_delta.
Date: Fri, 5 Mar 2021 17:13:26 +0000 [thread overview]
Message-ID: <b28c85f973f34bc192b5b5e95f43a7fb@AcuMS.aculab.com> (raw)
In-Reply-To: <CAKwvOdmijctJfM3gNfwEVjaQyp3LZkhnAwgsT7EBhsSBJyfLAA@mail.gmail.com>
> Hi Josh, Thanks for helping get this patch across the finish line.
> Would you mind updating the commit message to point to
> https://bugs.llvm.org/show_bug.cgi?id=20197?
Is it worth an audit of all the asm() constraints
and potentially changing all the "mr" to "r" for clang?
The explicit 'load into a register' won't make much
difference even if a direct "m" operand could be used on x86.
David
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Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)
next prev parent reply other threads:[~2021-03-05 17:14 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-26 19:52 [PATCH] " Josh Don
2021-02-26 21:03 ` Peter Zijlstra
2021-03-02 20:55 ` Josh Don
2021-03-02 20:57 ` Josh Don
2021-03-03 9:56 ` Peter Zijlstra
2021-03-03 21:59 ` Josh Don
2021-03-03 22:46 ` [PATCH v2] " Josh Don
2021-03-04 8:31 ` Peter Zijlstra
2021-03-04 17:34 ` Nick Desaulniers
2021-03-04 18:24 ` Sedat Dilek
2021-03-04 19:21 ` Sedat Dilek
2021-03-05 1:04 ` Josh Don
2021-03-05 17:13 ` David Laight [this message]
2021-03-10 11:26 ` [tip: sched/core] sched: Optimize __calc_delta() tip-bot2 for Clement Courbet
2021-03-03 10:02 ` [PATCH] sched: Optimize __calc_delta Peter Zijlstra
2021-03-03 22:00 ` Josh Don
2021-03-03 9:49 ` Peter Zijlstra
2021-02-28 15:15 ` [sched] 4112549ee5: WARNING:at_kernel/rcu/rcutorture.c:#rcu_torture_fwd_prog_nr[rcutorture] kernel test robot
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