[PATCH] D40146: [JumpThreading] Preservation of DT and LVI across the pass

Daniel Berlin via llvm-commits llvm-commits at lists.llvm.org
Thu Jan 18 15:08:04 PST 2018


Is this a new hang?
Dominator tree verification now takes a while, but it has for a few months
(IE places used to assume it was free, it's N^3 now but actually verifies
the dom tree for real)


On Thu, Jan 18, 2018 at 4:52 PM, Matthias Braun via Phabricator <
reviews at reviews.llvm.org> wrote:

> MatzeB added a comment.
>
> I'm currently seeing release+assert clang compilers apparently being stuck
> in an endless loop in the llvm test-suite (well I aborted after 10 minutes
> for a single file) hanging in some dominance tree verification code when I
> inspect the backtrace in lldb. Could this be caused by this commit?
>
>
> Repository:
>   rL LLVM
>
> https://reviews.llvm.org/D40146
>
>
>
>
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