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From: David Chisnall <theraven@freebsd.org>
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To: Konstantin Belousov <kostikbel@gmail.com>
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Cc: Kim Culhan <w8hdkim@gmail.com>, freebsd-current@freebsd.org,
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Subject: Re: -current build failure
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On 24 Jul 2012, at 23:43, Konstantin Belousov wrote:

> As kan rightfully notes, the assumption that &%fs:0 =3D=3D *%fs:0 =
holds for
> userspace on amd64, and the same is true for %gs userspace on i386.
> The change you committed to clang/llvm/whatever it called just breaks
> useful optimization for FreeBSD.

If you can suggest a way of differentiating the kernel and userspace =
compilation targets, then I would be happy to hear it and will make the =
appropriate change.    Until then, I would rather have slightly =
sub-optimal code in userspace than incorrect code in kernelspace.

> Sigh

Very helpful, thank you.

David=