[GHC] #10647: Notice about lack of SIMD support.

[GHC]

#10647: Notice about lack of SIMD support.
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        Reporter:  mniip             |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.8.4
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:  x86_64
 Type of failure:  Compile-time      |  (amd64)
  crash                              |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by seraphime):

 This issue is still present on master.
 I took a quick look at the problem and I made a patch replacing the panic
 with a sorry message proposing the usage of -fllvm. Here's what ghc says
 with my patch:


 {{{
 ghc-stage2: sorry! (unimplemented feature or known bug)
   (GHC version 8.1.20160610 for x86_64-unknown-linux):
         Native code generator cannot produce code for Format.intFormat
 W128
         Consider using the llvm backend with -fllvm
 }}}

 Is this solution convenient ?

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10647#comment:3>
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