[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:
       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):
       Wiki Page:                    |
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Comment (by angerman):

 Reasoing for `putStrLn (f g)`
 {{{
   putStrLn (f g)
 = putStrLn (f (last [q 1#]))
 = putStrLn (f (q 1#))
 = putStrLn ((q 1#) 3# 4.0# 5.0## 6.0# 6.9## ++ " World!")
 = putStrLn (q 1# 3# 4.0# 5.0## 6.0# 6.9## ++ " World!")
 = putStrLn ("Hello " ++ show (F# 6.0#) ++ " " ++ show (D# 6.9##) ++ "
 World!")
 = putStrLn ("Hello 6.0 6.9 World!")
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14251#comment:1>
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