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help / color / mirror / Atom feedFrom: John Naylor <[email protected]>
To: Matthew Sterrett <[email protected]>
Cc: Nazir Bilal Yavuz <[email protected]>
Cc: Stepan Neretin <[email protected]>
Cc: [email protected]
Cc: Devulapalli, Raghuveer <[email protected]>
Cc: Shankaran, Akash <[email protected]>
Subject: Re: Proposal for enabling auto-vectorization for checksum calculations
Date: Mon, 2 Jun 2025 19:11:45 +0700
Message-ID: <CANWCAZb=CDRMMERC7FA=-0mN4hQkToSsPHgBnAV3X1bz=8ONuQ@mail.gmail.com> (raw)
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On Fri, May 23, 2025 at 4:54 AM Matthew Sterrett
<[email protected]> wrote:
> Okay, I've determined that versions of LLVM/Clang before 19 crash when
> compiling this patch for some reason; it seems that both make
> check-world and make install will crash with the affected LLVM
> versions.
> Unfortunately, what matters seems to be the version of the linker/LTO
> optimizer, which I don't think we can check at compile time.
> I added a check for Clang>=19 which works at preventing the crash on my system.
> I think it's possible some unusual combination of clang/LLVM might
> still crash during the build, but I think this is a reasonable
> solution
I don't know if this is related to the crashes, but it doesn't seem
like a good idea to #include the function pointer stuff everywhere,
that should probably go into src/port like the others.
--
John Naylor
Amazon Web Services
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Subject: Re: Proposal for enabling auto-vectorization for checksum calculations
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