[GHC] #4213: LLVM: Add support for TNTC to LLVM compiler suite

[GHC]

#4213: LLVM: Add support for TNTC to LLVM compiler suite
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        Reporter:  dterei            |            Owner:  dterei
            Type:  feature request   |           Status:  new
        Priority:  low               |        Milestone:  7.6.2
       Component:  Compiler (LLVM)   |          Version:  6.13
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by altaic):

 Replying to [comment:24 bgamari]:
 > I hope that the LLVM folks would reject outright any proposal to change
 the semantics of an already released feature in a non-compatible way.

 An already released feature which is likely to have yet to be used in the
 wild.

 > Especially when there is nothing wrong with the existing semantics.

 I pointed out two shortcomings of the current semantics already. Even with
 the proposed symbol offsets, the prefix data must start with a target-
 dependent frontend-constructed instruction, which is subsequently not
 used. I.e. it requires carefully constructed garbage bytes. To me, that
 sounds kind of... not good.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4213#comment:30>
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