[GHC] #7703: GHCI crashes when loading a file, Windows 7 64 bit

[GHC]

#7703: GHCI crashes when loading a file, Windows 7 64 bit
-----------------------------+----------------------------------------------
Reporter:  crntaylor         |          Owner:                  
    Type:  bug               |         Status:  new             
Priority:  normal            |      Component:  Compiler        
 Version:  7.6.2             |       Keywords:                  
      Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
 Failure:  None/Unknown      |      Blockedby:                  
Blocking:                    |        Related:                  
-----------------------------+----------------------------------------------
 The file I'm loading in is reproduced here. I suspect the error is related
 to line 131, as it disappears when I comnment that line out.


 https://gist.github.com/chris-taylor/4977772


 This is the output when using ghci -v:


 C:\Users\ctaylor\Dropbox\Projects\Adjunction>ghci -v category.hs
 GHCi, version 7.4.2: http://www.haskell.org/ghc/  :? for help
 Glasgow Haskell Compiler, Version 7.4.2, stage 2 booted by GHC version
 7.0.4
 Using binary package database: C:\Program Files (x86)\Haskell
 Platform\2012.4.0.0\lib\package.conf.d\package.cache
 Using binary package database:
 C:\Users\ctaylor\AppData\Roaming\ghc\i386-mingw32-7.4.2\package.conf.d\package.cache
 wired-in package ghc-prim mapped to ghc-
 prim-0.2.0.0-17c9bd07295565b6290606174529c842
 wired-in package integer-gmp mapped to integer-
 gmp-0.4.0.0-c15e185526893c3119f809251aac8c5b
 wired-in package base mapped to
 base-4.5.1.0-7c83b96f47f23db63c42a56351dcb917
 wired-in package rts mapped to builtin_rts
 wired-in package template-haskell mapped to template-
 haskell-2.7.0.0-f72884c301136c17f8a7dfc49c2775c9
 wired-in package dph-seq not found.
 wired-in package dph-par not found.
 Hsc static flags: -static
 Loading package ghc-prim ... linking ... done.
 Loading package integer-gmp ... linking ... done.
 *** gcc:
 "C:\Program Files (x86)\Haskell
 Platform\2012.4.0.0\lib/../mingw/bin/gcc.exe" "-fno-stack-protector" "-Wl
 ,--hash-size=31" "-Wl,--reduce-memory-overheads" "-LC:\
 Program Files (x86)\Haskell Platform\2012.4.0.0\lib\base-4.5.1.0"
 "--print-file-name" "wsock32.dll"
 *** gcc:
 "C:\Program Files (x86)\Haskell
 Platform\2012.4.0.0\lib/../mingw/bin/gcc.exe" "-fno-stack-protector" "-Wl
 ,--hash-size=31" "-Wl,--reduce-memory-overheads" "-LC:\
 Program Files (x86)\Haskell Platform\2012.4.0.0\lib\base-4.5.1.0"
 "--print-file-name" "user32.dll"
 *** gcc:
 "C:\Program Files (x86)\Haskell
 Platform\2012.4.0.0\lib/../mingw/bin/gcc.exe" "-fno-stack-protector" "-Wl
 ,--hash-size=31" "-Wl,--reduce-memory-overheads" "-LC:\
 Program Files (x86)\Haskell Platform\2012.4.0.0\lib\base-4.5.1.0"
 "--print-file-name" "shell32.dll"
 Loading package base ... linking ... done.
 *** Chasing dependencies:
 Chasing modules from:
 Stable obj: []
 Stable BCO: []
 unload: retaining objs []
 unload: retaining bcos []
 Ready for upsweep []
 Upsweep completely successful.
 *** Deleting temp files:
 Deleting:
 *** Chasing dependencies:
 Chasing modules from: *category.hs
 Stable obj: []
 Stable BCO: []
 unload: retaining objs []
 unload: retaining bcos []
 Ready for upsweep
   [NONREC
       ModSummary {
          ms_hs_date = Mon Feb 18 14:16:17 GMT Standard Time 2013
          ms_mod = main:Main,
          ms_textual_imps = [import qualified Prelude,
                             import Prelude hiding ( id, (.) )]
          ms_srcimps = []
       }]
 *** Deleting temp files:
 Deleting:
 compile: input file category.hs
 Created temporary directory: C:\Users\ctaylor\AppData\Local\Temp\ghc2988_0
 *** Checking old interface for main:Main:
 [1 of 1] Compiling Main             ( category.hs, interpreted )
 *** Parser:
 *** Renamer/typechecker:
 ghc.exe: panic! (the 'impossible' happened)
   (GHC version 7.4.2 for i386-unknown-mingw32):
         kindFunResult ghc-prim:GHC.Prim.*{(w) tc 34d}

 Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

 >

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7703>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler