[GHC] #7898: SpecConstr explodes when compiling module BSP of frag-1.1.2

[GHC]

#7898: SpecConstr explodes when compiling module BSP of frag-1.1.2
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    Reporter:  tinctorius        |       Owner:                    
        Type:  bug               |      Status:  new               
    Priority:  normal            |   Milestone:                    
   Component:  Compiler          |     Version:  7.6.3             
    Keywords:                    |          Os:  Unknown/Multiple  
Architecture:  Unknown/Multiple  |     Failure:  Compile-time crash
  Difficulty:  Unknown           |    Testcase:                    
   Blockedby:                    |    Blocking:                    
     Related:                    |  
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Comment(by amosrobinson):

 I'm sorry, I've kind of dropped the ball on this. So, SpecConstr is
 definitely blowing up (235,000 to 3,000,000 or something). But! Before
 that, the simplifier is blowing up from 5,000 to 235,000. I know a certain
 amount of increase is expected from inlining in the simplifier, but this
 seems excessive.
 So I suspect it's actually inlining too much?

 I don't have a good example, but #7928 looks like it might be easier to
 get into a standalone test case.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7898#comment:11>
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