<div dir="ltr">Yes, sorry for that!<div><br></div><div>This is tracked in: <a href="https://ghc.haskell.org/trac/ghc/ticket/14989">https://ghc.haskell.org/trac/ghc/ticket/14989</a></div><div>Revert: <a href="https://phabricator.haskell.org/D4577">https://phabricator.haskell.org/D4577</a> </div><div><br></div><div>- Michal</div></div><br><div class="gmail_quote"><div dir="ltr">On Sun, Apr 8, 2018 at 11:08 AM Ömer Sinan Ağacan <<a href="mailto:omeragacan@gmail.com">omeragacan@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
I see a lot of these errors in slow validate using current GHC HEAD:<br>
<br>
ghc: panic! (the 'impossible' happened)<br>
(GHC version 8.5.20180407 for x86_64-unknown-linux):<br>
Each block should be reachable from only one ProcPoint<br>
<br>
This wasn't happening ~10 days ago. I suspect it may be D4417 but I haven't<br>
checked.<br>
<br>
Ömer<br>
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</blockquote></div>