[GHC] #8275: Loopification breaks profiling

[GHC]

#8275: Loopification breaks profiling
----------------------------------------+----------------------------------
        Reporter:  jstolarek            |            Owner:  jstolarek
            Type:  bug                  |           Status:  new
        Priority:  high                 |        Milestone:  7.8.1
       Component:  Profiling            |          Version:  7.7
      Resolution:                       |         Keywords:
Operating System:  Unknown/Multiple     |     Architecture:
 Type of failure:  Building GHC failed  |  Unknown/Multiple
       Test Case:                       |       Difficulty:  Unknown
        Blocking:  8298                 |       Blocked By:
                                        |  Related Tickets:
----------------------------------------+----------------------------------

Comment (by simonmar):

 Yes, good catch.  I wonder if the right way to fix these issues is to not
 shortcut or concat a jump when the jump destination has not already been
 processed.  This might be easier than keeping track of the predecessor
 counts accurately, and should give results that are just as good.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8275#comment:22>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler