[GHC] #14251: LLVM Code Gen messes up registers

[GHC]

#14251: LLVM Code Gen messes up registers
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        Reporter:  angerman          |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.6.3
       Component:  Compiler (LLVM)   |              Version:  8.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D5190
       Wiki Page:                    |
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Comment (by bgamari):

 I am backing out both fixes on `master` as well until we have a fix.

 Kavon, if you could find the time it would be amazing if we could have
 this for 8.8; it would be a shame if we had to ship yet another release
 with a broken LLVM backend.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14251#comment:28>
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