[GHC] #5801: Document GHC Optimisation Passes

[GHC]

#5801: Document GHC Optimisation Passes
---------------------------------+------------------------------------------
    Reporter:  dterei            |       Owner:  dterei           
        Type:  task              |      Status:  new              
    Priority:  normal            |   Milestone:  7.6.1            
   Component:  Documentation     |     Version:                   
    Keywords:                    |          Os:  Unknown/Multiple 
Architecture:  Unknown/Multiple  |     Failure:  Documentation bug
  Difficulty:  Unknown           |    Testcase:                   
   Blockedby:                    |    Blocking:                   
     Related:                    |  
---------------------------------+------------------------------------------
Changes (by simonpj):

 * cc: chak (added)


Comment:

 Well I've taken a sweep too.  Could still be improved.   Remaining TODOs:

  * Manuel: Document DPH flags, at least enough to point to the details
 elsewhere.
  * David: document `-fregs-graph` and `-fregs-iterative`

 Simon

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5801#comment:7>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler