[GHC] #5598: Function quotRem is inefficient

[GHC]

#5598: Function quotRem is inefficient
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    Reporter:  boris                          |       Owner:  igloo                  
        Type:  task                           |      Status:  new                    
    Priority:  normal                         |   Milestone:  7.6.1                  
   Component:  Compiler                       |     Version:  7.0.3                  
    Keywords:  division, performance, primop  |          Os:  Unknown/Multiple       
Architecture:  x86                            |     Failure:  Runtime performance bug
  Difficulty:  Unknown                        |    Testcase:                         
   Blockedby:                                 |    Blocking:                         
     Related:                                 |  
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Comment(by rl):

 Have you looked at the output of LLVM's optimiser and verified that the
 load is still there? If LLVM can't remove it, it's because it thinks the
 store might alias the load. That should be fixed by David's TBAA patches.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5598#comment:13>
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