<div dir="ltr">I maintain most of the bots in question here.<div><br></div><div>I attempt to keep the Clang version under test as close to ToT as possible, but it's still a manual process.</div><div><br></div><div>I don't want to force most libc++ bots to build Clang before running the tests, as rebuilding Clang all the time will take a long time.</div><div>However, I'll look into setting up a bot that does a full bootstrap which includes testing libc++.</div><div></div></div><br><div class="gmail_quote"><div dir="ltr">On Tue, Oct 9, 2018 at 4:41 PM Louis Dionne via cfe-dev <<a href="mailto:cfe-dev@lists.llvm.org">cfe-dev@lists.llvm.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Note: I'm sending this to cfe-dev because I want to have more exposure than only libcxx-dev.<br>
<br>
Hi,<br>
<br>
Two recent changes in Clang broke libc++ tests:<br>
<br>
r343131: <a href="https://bugs.llvm.org/show_bug.cgi?id=39232" rel="noreferrer" target="_blank">https://bugs.llvm.org/show_bug.cgi?id=39232</a><br>
r342605: <a href="http://bugs.llvm.org/show_bug.cgi?id=39234" rel="noreferrer" target="_blank">http://bugs.llvm.org/show_bug.cgi?id=39234</a><br>
<br>
Those failures were apparently not caught by the builders because we don't seem to test libc++ ToT against Clang ToT (aka Stage 2 build). In the future, it would be great to catch those failures earlier and notify the commit authors instead of having to painstakingly bisect the errors after the fact.<br>
<br>
I have the following questions:<br>
1. Is there currently a build bot that tests libc++ ToT against Clang ToT?<br>
2. If not, is it easy for someone to set one up?<br>
<br>
Louis<br>
<br>
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</blockquote></div>