[GHC] #13378: ghc-stage2 broken for quick-llvm

[GHC]

#13378: ghc-stage2 broken for quick-llvm
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        Reporter:  angerman          |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.4.1
       Component:  Compiler          |              Version:
      Resolution:                    |             Keywords:
Operating System:  MacOS X           |         Architecture:  x86_64
 Type of failure:  Building GHC      |  (amd64)
  failed                             |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by angerman):

 As Reid said, in https://phabricator.haskell.org/D3287 we mangled away the
 `.subsections_via_symbols`. (8.2)
 https://phabricator.haskell.org/D3290 should drop the requirement for the
 mangling step, by marking everything .no_dead_strip. (8.4).

 Finally once https://reviews.llvm.org/D30770, lands in llvm (5), we might
 be able to drop all this hackery completely. Unless we run into issues
 with out symbol aliasing.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13378#comment:10>
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