[LLVMdev] Botched Build

Garrison Venn gvenn.cfe.dev at gmail.com
Mon Feb 15 13:30:25 PST 2010

Unless others find this objectionable, it would be nice to see the grammar for metadata
instruction attachment in the http://llvm.org/docs/LangRef.html#metadata section. The
grammar you gave earlier seems to work.


On Feb 15, 2010, at 16:17, David Greene wrote:

> On Monday 15 February 2010 15:08:22 Chris Lattner wrote:
>> On Feb 15, 2010, at 1:04 PM, David Greene wrote:
>>>> FWIW, this is because you broke the encoding of an instruction in your
>>>> patch.  This is incorrect:
>>>> +def MOVNTDQ_64mr : PSI<0xE7, MRMDestMem, (outs), (ins f128mem:$dst,
>>>> VR128:$src), +                    "movntdq\t{$src, $dst|$dst, $src}",
>>>> +                    [(alignednontemporalstore (v2f64 VR128:$src),
>>>> addr:$dst)]>;
>>>> Please don't check in patches when you know that they break testcases.
>>> I certainly didn't know it broke anything.  I even checked the buildbot
>>> and it looked like it failed before I ever applied anything.  Apologies
>>> for the mix- up.
>> FYI, if you want to check the encoding of an instruction, you can do so
>> with a command like this:
> Thanks.  It's strange that the buidbot shows this test failing long before I
> made the change.  Why would that be?
> In any event, I've got the problem fixed.  It was a cut-n-paste oversight on 
> my part.
> As for documentation, where should that go in LangRef.html?  There's
> nothing there yet that really talks about special metadata.  I can make up
> a section if that seems appropriate.
>                                                -Dave
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