[GHC] #7940: Building GHC 7.7.20130526 (perf) for Windows x86_64 fails with Cmm lint error

[GHC]

#7940: Building GHC 7.7.20130526 (perf) for Windows x86_64 fails with Cmm lint
error
-------------------------------+--------------------------------------------
    Reporter:  awson           |       Owner:                     
        Type:  bug             |      Status:  new                
    Priority:  normal          |   Milestone:                     
   Component:  Compiler        |     Version:  7.7                
    Keywords:                  |          Os:  Windows            
Architecture:  x86_64 (amd64)  |     Failure:  Building GHC failed
  Difficulty:  Unknown         |    Testcase:                     
   Blockedby:                  |    Blocking:                     
     Related:                  |  
-------------------------------+--------------------------------------------

Comment(by simonpj):

 Thank you for looking into this.  I think that by now you are the World
 Expert (Nick was only there incidentally to other stuff).  So please go
 ahead and propose changes and develop a patch.  (The patch is easier to
 review if you articulate the reasoning as you have done above.)

 I'm no expert about the portability details, but I know what 'ticky' is
 for; ticky counters are simply very low-level counters of RTS events, used
 for performance debugging.  So having them all be word-sized would be fine
 I think.  I suppose that they might overflow on 32-bit machines, so it
 would be even more ideal to make them always 64-bit; but if that was a
 pain we could probably live with the overflow possibility.

 Simon

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7940#comment:6>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler