[lldb-dev] Managing Clang and LLVM dependencies systematically

[Reid Kleckner]

On Tue, Nov 18, 2014 at 3:15 PM, <jingham at apple.com> wrote:

> I actually think it is good that incompatible changes to llvm break the
> lldb build bots right away.  Then they will get fixed in lldb right after
> the change was made when it is clear in people's minds what just went on.
> So I wouldn't want to add any of this sort of machinery to lldb's build
> w.r.t. the build bots.  Now that the build-bots are running regularly, the
> clang folks can also see the breakage right away and just fix it, which
> they often do (thanks for that BTW...)  So if there were a "GOOD_LLVM" it
> should not be used for the build-bots.
>

+1, LLDB breakages need to be more visible to Clang/LLVM developers.
Currently they are not very visible, mostly for no good reason.

Stabilizing the LLDB test suite would help, but the bots could probably be
more aggressive about sending IRC or email pings when the build (not tests)
fails, as this is the primary way that LLVM and Clang changes break LLDB.
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