[GHC] #4953: panic: urk! lookup local fingerprint main:B.throwErr{v rR3}

[GHC]

#4953: panic: urk! lookup local fingerprint main:B.throwErr{v rR3}
---------------------------------+------------------------------------------
    Reporter:  igloo             |        Owner:  igloo       
        Type:  bug               |       Status:  new         
    Priority:  highest           |    Milestone:  7.0.2       
   Component:  Compiler          |      Version:  7.0.1       
    Keywords:                    |     Testcase:              
   Blockedby:                    |   Difficulty:              
          Os:  Unknown/Multiple  |     Blocking:              
Architecture:  Unknown/Multiple  |      Failure:  None/Unknown
---------------------------------+------------------------------------------
Changes (by simonpj):

  * owner:  => igloo


Comment:

 Well characterised!  This should fix it:
 {{{
 Mon Feb 14 14:03:34 GMT 2011  simonpj at microsoft.com
   * Fix Trac #4953: local let binders can have IdInfo with free names

   Local let binders in IfaceExpr never used to have unfoldings,
   but lately they can (becuase they can have an INLINE pragma).
   We must take account of the variables mentioned in the pragma
   when computing the fingerprint.
 }}}
 Can you test and then close?

 Simon

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4953#comment:4>
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