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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I’ve had another look, and some of the failing tests don’t use temporary files, so I don’t think this is a case of tests having side-effects.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Instead, I’ve noticed that in the build log (<a href="http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win/builds/6552/steps/build-unified-tree/logs/stdio">http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win/builds/6552/steps/build-unified-tree/logs/stdio</a>),
llvm-tblgen.exe is built (my patch modified it), but the table-generation steps of the main build (importantly, ARMGenAsmMatcher.inc) do not appear to be running. I think this would explain the FileCheck output from those failing tests.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Could there be a buildbot misconfiguration which is preventing the newly-built llvm-tblgen from being used?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Oliver<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Galina Kistanova [mailto:gkistanova@gmail.com]
<br>
<b>Sent:</b> 04 December 2017 22:30<br>
<b>To:</b> Oliver Stannard<br>
<b>Cc:</b> Sander De Smalen; nd<br>
<b>Subject:</b> Re: buildbot failure in LLVM on llvm-clang-x86_64-expensive-checks-win<o:p></o:p></span></p>
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<p class="MsoNormal">Hi <span style="font-size:9.5pt">Oliver,</span><o:p></o:p></p>
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<p class="MsoNormal">I have requested a clean build of that exact revision and all the tests passes.<o:p></o:p></p>
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<p class="MsoNormal"><a href="http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win/builds/6561" target="_blank">http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win/builds/6561</a><o:p></o:p></p>
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<p class="MsoNormal">This is kind of bad, as it seems some tests have side effects.<o:p></o:p></p>
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<p class="MsoNormal">Thanks<o:p></o:p></p>
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<p class="MsoNormal">Galina<o:p></o:p></p>
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<p class="MsoNormal">On Mon, Dec 4, 2017 at 5:47 AM, Oliver Stannard <<a href="mailto:Oliver.Stannard@arm.com" target="_blank">Oliver.Stannard@arm.com</a>> wrote:<o:p></o:p></p>
<p class="MsoNormal">Hi Galina,<br>
<br>
This buildbot failure looks related to my patch (blamelist of 1, the failing tests are ones I modified), but it's not clear what is wrong from the lit output, and I haven't been able to reproduce this locally. Would it be possible for you to send me the output
of one of the failing llvm-mc commands on that bot?<br>
<br>
Sander also hit a similar problem with the same bot in <a href="https://reviews.llvm.org/D40011" target="_blank">
https://reviews.llvm.org/D40011</a>.<br>
<br>
Thanks,<br>
Oliver<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
> -----Original Message-----<br>
> From: <a href="mailto:llvm.buildmaster@lab.llvm.org">llvm.buildmaster@lab.llvm.org</a><br>
> [mailto:<a href="mailto:llvm.buildmaster@lab.llvm.org">llvm.buildmaster@lab.llvm.org</a>]<br>
> Sent: 04 December 2017 12:51<br>
> To: Oliver Stannard<br>
> Cc: <a href="mailto:gkistanova@gmail.com">gkistanova@gmail.com</a><br>
> Subject: buildbot failure in LLVM on llvm-clang-x86_64-expensive-checks-<br>
> win<br>
><br>
> The Buildbot has detected a new failure on builder llvm-clang-x86_64-<br>
> expensive-checks-win while building llvm.<br>
> Full details are available at:<br>
> <a href="http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-" target="_blank">
http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-</a><br>
> win/builds/6552<br>
><br>
> Buildbot URL: <a href="http://lab.llvm.org:8011/" target="_blank">http://lab.llvm.org:8011/</a><br>
><br>
> Buildslave for this Build: ps4-buildslave2<br>
><br>
> Build Reason: scheduler<br>
> Build Source Stamp: [branch trunk] 319649<br>
> Blamelist: olista01<br>
><br>
> BUILD FAILED: failed test-check-all<br>
><br>
> sincerely,<br>
> -The Buildbot<br>
><br>
><o:p></o:p></p>
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