[GHC] #5889: -fno-prof-count-entries leads to linking errors

[GHC]

#5889: -fno-prof-count-entries leads to linking errors
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        Reporter:  akio              |                Owner:  bgamari
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.4.1
       Component:  Compiler          |              Version:  8.3
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:  x86_64
 Type of failure:  GHC rejects       |  (amd64)
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by bgamari):

 * cc: Jaffacake (added)


Comment:

 Off the top of my head I see a few general directions for fixing this:

 1. Be less aggressive about dropping "useless" ticks
 2. Ensure that during codegen we look for SCCs in unfoldings as well as
 the RHS itself

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5889#comment:10>
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