[GHC] #14970: GHC.Err.errorWithoutStackTrace produces stack trace when profiling enabled

[GHC]

#14970: GHC.Err.errorWithoutStackTrace produces stack trace when profiling enabled
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        Reporter:  rotaerk           |                Owner:  simonmar
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.6.1
       Component:  libraries/base    |              Version:  8.2.2
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D4648
       Wiki Page:                    |
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Changes (by dfeuer):

 * cc: dfeuer (added)


Comment:

 bgamari, that's a bit tricky. It's only possible to avoid building the
 call stack if the demand analyzer can see that it won't be used. I think
 the only reliable way to avoid building one is to be careful with your
 constraints.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14970#comment:7>
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