[GHC] #14334: Large static object : getLabelBc: Ran out of labels

[GHC]

#14334: Large static object : getLabelBc: Ran out of labels
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        Reporter:  h4ck3rm1k3  |                Owner:  (none)
            Type:  bug         |               Status:  new
        Priority:  lowest      |            Milestone:
       Component:  GHCi        |              Version:  8.0.2
      Resolution:              |             Keywords:
Operating System:  Linux       |         Architecture:  x86_64 (amd64)
 Type of failure:  GHCi crash  |            Test Case:
      Blocked By:              |             Blocking:
 Related Tickets:              |  Differential Rev(s):
       Wiki Page:              |
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Changes (by RyanGlScott):

 * status:  infoneeded => new


Comment:

 Thanks, that was helpful. I'm now able to reduce this to a single (very
 large) file with only a `text` dependency (which is bundled with GHC HEAD
 nowadays), which can be found
 [https://gist.githubusercontent.com/RyanGlScott/75e8b0ad7a3995f6877e3e8e2f9a752f/raw/688ac3e87c25669f5acdf80f8351a420ee22c82e/LibData.hs
 here] (since it exceeds Trac's file upload limit).

 Running `ghci` on this file is enough to make it panic:

 {{{
 $ ~/Software/ghc2/inplace/bin/ghc-stage2 --interactive LibData.hs
 GHCi, version 8.3.20171004: http://www.haskell.org/ghc/  :? for help
 Loaded GHCi configuration from /home/rgscott/.ghci
 [1 of 1] Compiling LibData          ( LibData.hs, interpreted )
 ghc-stage2: panic! (the 'impossible' happened)
   (GHC version 8.3.20171004 for x86_64-unknown-linux):
         getLabelBc: Ran out of labels
 }}}

 I've reproduced this with GHC 8.0.2, 8.2.1, and HEAD.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14334#comment:6>
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