[GHC] #7455: ghc panic on show

2012-11-28 Thread GHC 
#7455: ghc panic on show
---+
Reporter:  fegu|  Owner: 
Type:  bug | Status:  new
Priority:  normal  |  Component:  Compiler   
 Version:  7.4.1   |   Keywords:  panic show Show
  Os:  Windows |   Architecture:  x86
 Failure:  Compile-time crash  |  Blockedby: 
Blocking:  |Related: 
---+
 --- ghccrash.hs
 main = do
   putStrLn Minimal compiler bug example

 data VariationInfo = Variation{
   somefield :: Bool
   } deriving (show) -- set small s in show to crash ghc 7.4.1

 --- OUTPUT:
 D:\Prosjekt.FE\Haskellghc ghccrash.hs
 [1 of 1] Compiling Main ( ghccrash.hs, ghccrash.o )
 ghc: panic! (the 'impossible' happened)
   (GHC version 7.4.1 for i386-unknown-mingw32):
 nameModule show{tv a9M}

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

-- 
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7455
GHC http://www.haskell.org/ghc/
The Glasgow Haskell Compiler

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Re: [GHC] #7455: ghc panic on show

2012-11-28 Thread GHC 
#7455: ghc panic on show
+---
Reporter:  fegu |Owner:
Type:  bug  |   Status:  closed
Priority:  normal   |Component:  Compiler  
 Version:  7.4.1|   Resolution:  duplicate 
Keywords:  panic show Show  |   Os:  Windows   
Architecture:  x86  |  Failure:  Compile-time crash
   Blockedby:   | Blocking:
 Related:   |  
+---
Changes (by monoidal):

  * status:  new = closed
  * resolution:  = duplicate


Comment:

 This is a duplicate of the bug #5961. It is already fixed in GHC 7.6.

-- 
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7455#comment:1
GHC http://www.haskell.org/ghc/
The Glasgow Haskell Compiler

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