[GHC] #6078: GHC panic encountered for unlifted let bindings

[GHC]

#6078: GHC panic encountered for unlifted let bindings
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    Reporter:  SimonMeier               |       Owner:                    
        Type:  bug                      |      Status:  new               
    Priority:  normal                   |   Milestone:                    
   Component:  Compiler                 |     Version:  7.4.1             
    Keywords:  unlifted, bang patterns  |          Os:  Unknown/Multiple  
Architecture:  Unknown/Multiple         |     Failure:  Compile-time crash
  Difficulty:  Unknown                  |    Testcase:                    
   Blockedby:                           |    Blocking:                    
     Related:  4498                     |  
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Comment(by simonpj@…):

 commit 4c550307d96257b6d128183b329ef99a07873dbc
 {{{
 Author: Simon Peyton Jones <simonpj at microsoft.com>
 Date:   Wed May 9 15:23:25 2012 +0100

     Take care not to mix polymorphic and unlifted bindings in a group

     Fixes Trac #6078

  compiler/typecheck/TcBinds.lhs |   59
 +++++++++++++++++++++++++++------------
  1 files changed, 41 insertions(+), 18 deletions(-)
 }}}

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/6078#comment:3>
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