[GHC] #7553: ghc fails to terminate with -O2 or greater

[GHC]

#7553: ghc fails to terminate with -O2 or greater
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  Reporter:  erikd               |          Owner:                  
      Type:  bug                 |         Status:  closed          
  Priority:  normal              |      Milestone:                  
 Component:  Compiler            |        Version:  7.6.1           
Resolution:  duplicate           |       Keywords:                  
        Os:  Unknown/Multiple    |   Architecture:  Unknown/Multiple
   Failure:  Compile-time crash  |     Difficulty:  Unknown         
  Testcase:                      |      Blockedby:                  
  Blocking:                      |        Related:                  
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Changes (by amosrobinson):

 * cc: amos.robinson@… (added)
  * status:  new => closed
  * resolution:  => duplicate


Comment:

 Yes, vector fold with a list accumulator will trigger the ForceSpecConstr
 bug, so this is definitely a duplicate of #5550.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7553#comment:9>
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