[GHC] #10482: Not enough unboxing happens on data-family function argument

[GHC]

#10482: Not enough unboxing happens on data-family function argument
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        Reporter:  akio              |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by Simon Peyton Jones <simonpj@…>):

 In [changeset:"0696fc6d4de28cb589f6c751b8491911a5baf774/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="0696fc6d4de28cb589f6c751b8491911a5baf774"
 Improve CPR behavior for strict constructors

 When working on Trac #10482 I noticed that we could give constructor
 arguments the CPR property if they are use strictly.

 This is documented carefully in
     Note [CPR in a product case alternative]
 and also
     Note [Initial CPR for strict binders]

 There are a bunch of intersting examples in
     Note [CPR examples]
 which I have added to the test suite as T10482a.

 I also added a test for #10482 itself.
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10482#comment:3>
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