[PATCH] D38960: [Local] Fix a bug in the domtree update logic for MergeBasicBlockIntoOnlyPred.

[Daniel Berlin via llvm-commits]

Send me a test case that fails under bugpoint (and the command line to use)
and I'll try some of my reduction tools on it.

On Tue, Oct 17, 2017, 9:11 AM Balaram Makam via Phabricator via
llvm-commits <llvm-commits at lists.llvm.org> wrote:

> bmakam added a comment.
>
> In https://reviews.llvm.org/D38960#899142, @kuhar wrote:
>
> > Thanks for adding the comment.
> >
> > The testcase seems really long and it's not obvious why what it tries to
> exercise -- have you tried reducing it with bugpoint to something shorter
> and easier to reason about?
>
>
> Sorry for the long testcase, but this untitest was extracted after using
> bugpoint to reduce the lit test in
> test/Transforms/CodeGenPrepare/2008-11-24-RAUW-Self.ll. Is there a way to
> reduce a unittest using bugpoint?
>
>
> https://reviews.llvm.org/D38960
>
>
>
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