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Reply-To: sedat.dilek@gmail.com
From:   Sedat Dilek <sedat.dilek@gmail.com>
Date:   Sat, 13 Mar 2021 14:47:54 +0100
Message-ID: <CA+icZUWTSo2vkQO_tRggDFvvF_Q6AdzhvhQvmAsNxKnpGXHi0Q@mail.gmail.com>
Subject: Re: [PATCH 0/2] x86: Remove ideal_nops[]
To:     Borislav Petkov <bp@alien8.de>
Cc:     Peter Zijlstra <peterz@infradead.org>, x86@kernel.org,
        rostedt@goodmis.org, hpa@zytor.com, torvalds@linuxfoundation.org,
        linux-kernel@vger.kernel.org, linux-toolchains@vger.kernel.org,
        jpoimboe@redhat.com, alexei.starovoitov@gmail.com,
        mhiramat@kernel.org
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On Sat, Mar 13, 2021 at 2:29 PM Borislav Petkov <bp@alien8.de> wrote:
>
> On Sat, Mar 13, 2021 at 01:58:56PM +0100, Sedat Dilek wrote:
> > You can add Debian/experimental APT sources.list ...
>
> I could but I don't expect clang12 to behave any differently here.
>

Agreed in things of build-time.
There were some improvements and optimizations to LLVM/Clang but twice
as slow is really hard compared with GCC.

I was thinking more in the direction of "compatibility" of tip tree
with recent LLVM/Clang other than what is officially supported via
Kbuild-system.

Let me look if I will do a selfmade ThinLTO+PGO optimized LLVM
toolchain v12.0.0-rc3 this weekend.

- Sedat -