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Subject: Re: svn commit: r317512 - in head: sys/conf sys/libkern
 sys/libkern/arm64 sys/sys tests/sys/kern
From: Michael Tuexen <tuexen@freebsd.org>
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Date: Thu, 8 Jun 2017 21:48:19 -0400
Cc: Dimitry Andric <dim@freebsd.org>,
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To: Ed Maste <emaste@freebsd.org>
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> On 7. Jun 2017, at 23:56, Ed Maste <emaste@freebsd.org> wrote:
> 
> On 7 June 2017 at 18:18, Ed Maste <emaste@freebsd.org> wrote:
>> On 27 April 2017 at 13:53, Michael Tuexen <tuexen@freebsd.org> wrote:
>>> Author: tuexen
>>> Date: Thu Apr 27 17:53:05 2017
>>> New Revision: 317512
>>> URL: https://svnweb.freebsd.org/changeset/base/317512
>> 
>> FYI when compiling this with the clang500-import branch I see:
>> 
>> /scratch/tmp/emaste/freebsd/sys/libkern/arm64/crc32c_armv8.S:41:2:
>> error: instruction requires: crc
>> crc32cb w0, w0, w10
>> ^
> 
> Andrew pointed out this is because there's no .arch armv8-a+crc
> directive -- which was not supported by Clang 3.8, is supported by
> Clang 4.0, and is required by Clang 5.0. I will commit it soon.
Thanks a lot!

Best regards
Michael