[GHC] #7383: implement proper type promotion in compilation of C calls

[GHC]

#7383: implement proper type promotion in compilation of C calls
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    Reporter:  igloo             |       Owner:                  
        Type:  bug               |      Status:  infoneeded      
    Priority:  high              |   Milestone:  7.6.2           
   Component:  Compiler          |     Version:  7.6.1           
    Keywords:                    |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
  Difficulty:  Unknown           |    Testcase:                  
   Blockedby:                    |    Blocking:                  
     Related:  7684              |  
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Changes (by simonmar):

  * status:  new => infoneeded


Comment:

 Please try the attached patch.  It validates for me on x86-64/Linux, but I
 don't think it affects anything there.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7383#comment:4>
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