linux-kernel - Re: [PATCH] arm64: kvm: use -fno-jump-tables with clang

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Message-ID: <CAAeHK+wk0hSH6iQcsLzrpjvsGocev-UZ6=z95ysecdFnAcHVSQ@mail.gmail.com>
Date:   Wed, 23 May 2018 13:54:06 +0200
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     Marc Zyngier <marc.zyngier@....com>,
        Sami Tolvanen <samitolvanen@...gle.com>,
        christoffer.dall@....com,
        Takahiro Akashi <takahiro.akashi@...aro.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        kvmarm@...ts.cs.columbia.edu, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm64: kvm: use -fno-jump-tables with clang

On Tue, May 22, 2018 at 8:28 PM, Nick Desaulniers
<ndesaulniers@...gle.com> wrote:
> On Fri, May 18, 2018 at 11:13 AM Marc Zyngier <marc.zyngier@....com> wrote:
>> > - you have checked that with a released version of the compiler, you
>
> On Tue, May 22, 2018 at 10:58 AM Andrey Konovalov <andreyknvl@...gle.com>
> wrote:
>> Tested-by: Andrey Konovalov <andreyknvl@...gle.com>
>
> Hi Andrey,
> Thank you very much for this report.  Can you confirm as well the version
> of Clang that you were using?

I'm on 86852a40 ("[InstCombine] Calloc-ed strings optimizations").

> If it's not a binary release (built from
> source), would you be able to re-confirm with a released version?

Sure. Which release should I try and how do I get it?