[GHC] #3831: SpecConstr should exploit cases where there is exactly one call pattern

[GHC]

#3831: SpecConstr should exploit cases where there is exactly one call pattern
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        Reporter:  igloo             |                Owner:  simonpj
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  6.13
      Resolution:                    |             Keywords:  SpecConstr
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Compile-time      |            Test Case:
  performance bug                    |  simplCore/should_compile/T3831
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 Huh.  Indeed those join points have more than one call pattern.  (And are
 non-rec to boot.)

 It looks as if something must have changed since I wrote that. Short of
 reverting to that version of GHC and trying it, I'm not sure what to
 suggest.  Mysterious, but not actually a problem, I guess.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/3831#comment:18>
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