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Subject: Re: [PATCH v3 04/10] sched/fair: rework load_balance
From:   Valentin Schneider <valentin.schneider@arm.com>
To:     Peter Zijlstra <peterz@infradead.org>
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        linux-kernel <linux-kernel@vger.kernel.org>,
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        Dietmar Eggemann <dietmar.eggemann@arm.com>,
        Morten Rasmussen <Morten.Rasmussen@arm.com>,
        Hillf Danton <hdanton@sina.com>
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Date:   Tue, 8 Oct 2019 18:36:51 +0100
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On 08/10/2019 17:39, Valentin Schneider wrote:
>>
>> But -fno-strict-overflow mandates 2s complement for all such signed
>> issues.
>>
> 
> So then there really shouldn't be any ambiguity. I have no idea if
> -fno-strict-overflow then also lifts the undefinedness of the right shifts,
> gotta get my spade and dig some more.
> 

Bleh, no luck really.

Thinking about it some more you can't overflow by right shifting
(logical/arithmetic), so I dunno if signed right shift counts as "such
signed issues".