[GHC] #7942: aarch64 support in ghc

[GHC]

#7942: aarch64 support in ghc
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        Reporter:  jcapik                   |            Owner:  kgardas
            Type:  feature request          |           Status:  new
        Priority:  normal                   |        Milestone:  7.10.1
       Component:  Compiler                 |          Version:  7.6.3
      Resolution:                           |         Keywords:
Operating System:  Linux                    |     Architecture:  arm
 Type of failure:  GHC doesn't work at all  |       Difficulty:  Unknown
       Test Case:                           |       Blocked By:  7623
        Blocking:                           |  Related Tickets:
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Comment (by kgardas):

 @carter: but -fvia-C is no longer supported, at least,
 https://ghc.haskell.org/trac/ghc/wiki/Building/Porting suggests that. So
 LLVM is the only way for AArch64 as we do not have NCG ready for this
 platform...

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7942#comment:19>
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