[GHC] #5615: ghc produces poor code for `div` with constant powers of 2.

[GHC]

#5615: ghc produces poor code for `div` with constant powers of 2.
---------------------------------+------------------------------------------
    Reporter:  Lennart           |        Owner:  daniel.is.fischer
        Type:  bug               |       Status:  new              
    Priority:  normal            |    Milestone:  7.6.1            
   Component:  Compiler          |      Version:  7.2.1            
    Keywords:                    |     Testcase:                   
   Blockedby:                    |   Difficulty:                   
          Os:  Unknown/Multiple  |     Blocking:                   
Architecture:  x86               |      Failure:  None/Unknown     
---------------------------------+------------------------------------------
Changes (by dterei):

 * cc: dterei (added)


-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5615#comment:6>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler