[GHC] #12793: Performs unaligned access on SPARC64

[GHC]

#12793: Performs unaligned access on SPARC64
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        Reporter:  jrtc27               |                Owner:
            Type:  bug                  |               Status:  patch
        Priority:  normal               |            Milestone:
       Component:  Compiler             |              Version:  8.0.1
      Resolution:                       |             Keywords:
Operating System:  Linux                |         Architecture:  sparc
 Type of failure:  Building GHC failed  |            Test Case:
      Blocked By:                       |             Blocking:
 Related Tickets:                       |  Differential Rev(s):  phab:D2661
       Wiki Page:                       |
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Comment (by Erik de Castro Lopo <erikd@…>):

 In [changeset:"19ce8a53e8074a7e56fd462e43750386e67edcd4/ghc"
 19ce8a53/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="19ce8a53e8074a7e56fd462e43750386e67edcd4"
 Sparc*: Prevent GHC from doing unaligned accesses

 This is specifically for the C backend on Sparc64 (which has
 no native backend) but is also required for Sparc when building
 un-registerised.

 Bug reported via Debian (patch included):

     https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=842780

 Test Plan: validate

 Reviewers: hvr, Phyx, bgamari, austin, simonmar

 Reviewed By: Phyx

 Subscribers: jrtc27, thomie

 Differential Revision: https://phabricator.haskell.org/D2661

 GHC Trac Issues: #12793
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12793#comment:3>
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