Re: [GHC] #10375: arm: ghci hits an illegal instruction

25 May 2015

      #10375: arm: ghci hits an illegal instruction
-------------------------------------+---------------------------------
        Reporter:  erikd             |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:  7.10.2
       Component:  GHCi              |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:  arm
 Type of failure:  GHCi crash        |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by erikd):

 This does not need `deriving Eq`. The following in `.ghci` is enough to
 trigger it:

 {{{
 data X = Y
 let eqX = \ a b -> case a of { Y -> case b of { Y -> True }}
 eqX Y Y
 }}}

 but none of the other obvious nullary contructors like:

 {{{
 True == True
 Nothing == Nothing
 }}}

 trigger it.

--
Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10375#comment:20
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