[llvm] r291918 - Fix UBSan bots by blacklisting bits/stl_tree.h.

[Ivan Krasin via llvm-commits]

Probably not. This blacklist only applies to Clang profiled with UBSan,
which is not what we release. The end users won't see or use this blacklist.
Sorry, if the naming is confusing.

On Fri, Jan 27, 2017 at 9:54 AM, Hans Wennborg <hans at chromium.org> wrote:

> On Fri, Jan 13, 2017 at 9:30 AM, Ivan Krasin via llvm-commits
> <llvm-commits at lists.llvm.org> wrote:
> > Author: krasin
> > Date: Fri Jan 13 11:30:10 2017
> > New Revision: 291918
> >
> > URL: http://llvm.org/viewvc/llvm-project?rev=291918&view=rev
> > Log:
> > Fix UBSan bots by blacklisting bits/stl_tree.h.
> >
> > Summary:
> > libstdc++ has some undefined behavior in bits/stl_tree.h that
> > has recently became excercised by some of the LLVM code.
> > Given that fixing libstdc++ will take years, adding the file
> > into a blacklist to fix bots seems like a necessity.
> >
> > Reviewers: vitalybuka
> >
> > Subscribers: llvm-commits, mgorny
> >
> > Differential Revision: https://reviews.llvm.org/D28686
>
> Should we merge this to 4.0?
>
> Probably not a huge benefit, but it seems pretty risk free, and maybe
> nice to have if someone tries to run ubsan on the released version.
>
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