[GHC] #3904: Bug in shipped gcc makes profiling lose resolution

[GHC]

#3904: Bug in shipped gcc makes profiling lose resolution
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    Reporter:  augustss      |        Owner:              
        Type:  bug           |       Status:  new         
    Priority:  normal        |    Milestone:              
   Component:  Build System  |      Version:  6.12.1      
    Keywords:                |   Difficulty:              
          Os:  Windows       |     Testcase:              
Architecture:  x86           |      Failure:  None/Unknown
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Comment(by augustss):

 Switching back to using (unsigned) int seems like the simplest fix then.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3904#comment:3>
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