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Date:      Thu, 27 Sep 2018 22:32:35 +0200
From:      Dimitry Andric <dimitry@andric.com>
To:        sgk@troutmask.apl.washington.edu
Cc:        freebsd-current@freebsd.org
Subject:   Re: LLVM breaks buildworld
Message-ID:  <374C8578-58C1-4125-BAE0-A084A712EF7D@andric.com>
In-Reply-To: <20180927200629.GA24307@troutmask.apl.washington.edu>
References:  <20180927193439.GA74697@troutmask.apl.washington.edu> <20180927193907.GA74777@troutmask.apl.washington.edu> <20180927200629.GA24307@troutmask.apl.washington.edu>

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[-- Attachment #1 --]
On 27 Sep 2018, at 22:06, Steve Kargl <sgk@troutmask.apl.washington.edu> wrote:
> 
> On Thu, Sep 27, 2018 at 12:39:07PM -0700, Steve Kargl wrote:
>> On Thu, Sep 27, 2018 at 12:34:39PM -0700, Steve Kargl wrote:
>>> cd /usr/obj
>>> rm -f usr
>>> cd /usr/src
>>> svn update
>>> make buildworld
>>> (wait a long time)
>>> 
>>> ===> lib/clang/libllvm (all)
>>> llvm-tblgen -gen-asm-matcher  -I /usr/src/contrib/llvm/include -I /usr/src/contrib/llvm/lib/Target/Mips  -d MipsGenAsmMatcher.inc.d -o MipsGenAsmMatcher.inc  /usr/src/contrib/llvm/lib/Target/Mips/Mips.td
>>> Included from /usr/src/contrib/llvm/lib/Target/Mips/Mips.td:57:
>>> Included from /usr/src/contrib/llvm/lib/Target/Mips/MipsInstrInfo.td:3010:
>>> /usr/src/contrib/llvm/lib/Target/Mips/MipsDSPInstrInfo.td:1142:25: error: Couldn't find class 'SHRD_QB_ENC'
>>> def SHRL_QB : DspMMRel, SHRD_QB_ENC, SHRL_QB_DESC;
>>>                        ^
>> 
>> % find /usr/src/contrib/llvm -type f | xargs grep SHRD_QB
>> /usr/src/contrib/llvm/lib/Target/Mips/MipsDSPInstrInfo.td:def SHRL_QB : DspMMRel, SHRD_QB_ENC, SHRL_QB_DESC;
>> 
>> 
>> This is only place under llvm that SHRD_QB appears?
>> 
> 
> Hmmm, deleting the file MipsDSPInstrInfo.td seems to flip
> SHRD to SHRL. Oddly, 'svn diff' did not show a diff with
> the corrupt file. :(.

Looks like one flipped bit, indeed.  Maybe Subversion's pristine copy
was bad to begin with?

-Dimitry


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