[LLVMdev] Botched Build

[Daniel Dunbar]

Note that in general, if you get an individual email from buildbot,
then it is because it thinks you made a commit in the timeframe when
the build went from green to red.

 - Daniel

On Tue, Feb 16, 2010 at 8:54 AM, David Greene <dag at cray.com> wrote:
> On Monday 15 February 2010 15:27:34 Chris Lattner wrote:
>> On Feb 15, 2010, at 1:17 PM, 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?
>>
>> It didn't.  Here's a good build:
>> http://smooshlab.apple.com:8010/builders/clang-i386-darwin9/builds/5019
>
> Well, I can't get there, but...
>
> Oh.  Buildbot is not displaying what I would expect.  Looking at the Console
> (revision-oriented) Display, I was looking for errors listed under the color-
> keyed build results.  For example:
>
> clang-i386-auroraux : compile Debug failed. [ stdio ]
>  clang-x86_64-darwin10-selfhost : test llvm 4558 tests 4557 passed 25 warnings
> 1 failed failed. [ stdio fail xfail unsupported multiplepluginpriorities.td ]
>
> I was seeing the same failure (x86_32-ecoding.s) listed everywhere.  I would
> expect that these errors show the results of the build of the revision but
> apparently it simply shows the global results of the latest build.
>
> I don't know if that's intended of it it's a buildbot bug but it's certainly
> not what I would expect.
>
>> > 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.
>>
>> Add it to the #i_store section, thanks.
>
> Ok.  This can also affect loads too so I'll add something for that too.
>
>                                         -Dave
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