[llvm-dev] Build failure

[David Spickett via llvm-dev]

Hi Paul,

This bot has built the tblgen binary with sanitizers and what you're
seeing is an undefined behaviour issue at runtime. The lines are
showing the callstack for it (in between the filecheck annotations).
So presumably if you look at:
10: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/lib/TableGen/TGParser.cpp:3213:22
in

That file/line would give you an idea of the problem, a null pointer
use I assume.

If you run the RUN line in a terminal, without the pipe into
FileCheck, you will get a better view of the output.

On Fri, 8 Jan 2021 at 15:49, Paul C. Anagnostopoulos via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
>
> I am at a loss to understand this build failure:
>
> http://lab.llvm.org:8011/#/builders/5/builds/3219
>
> If you view all the lines, it looks as if it's running a TableGen test on a C++ file. Any help would be appreciated.
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev