[GHC] #2269: Word type to Double or Float conversions are slower than Int conversions

[GHC]

#2269: Word type to Double or Float conversions are slower than Int conversions
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    Reporter:  dons                        |        Owner:  dons@…         
        Type:  feature request             |       Status:  new            
    Priority:  low                         |    Milestone:  7.0.1          
   Component:  Compiler                    |      Version:  6.8.2          
    Keywords:  rules, performance, double  |     Testcase:                 
   Blockedby:                              |   Difficulty:  Unknown        
          Os:  Unknown/Multiple            |     Blocking:                 
Architecture:  Unknown/Multiple            |      Failure:  None/Unknown   
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Changes (by daniel.is.fischer):

 * cc: daniel.is.fischer@… (added)
  * failure:  => None/Unknown


Comment:

 I'd like primops too, but I don't know how one would do that. What I can
 offer is adding `Word -> Float` and `Word -> Double` conversions to
 primFloat.c.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2269#comment:7>
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