[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:26 awson]:
 > Now LLVM-compiled 64-bit code
 [https://ghc.haskell.org/trac/ghc/ticket/8974 segfaults on Windows]. I've
 prepared the patch, but
 [https://ghc.haskell.org/trac/ghc/ticket/8974#comment:10 I don't know the
 way to implement it without mangler] because LLVM does not want to
 silently truncate 64-bit address constant to 32-bit but bitwise ands it
 with `-1` (`&-1`) also.

 Ah, my apologies, I'm not sure why your ticket didn't appear on my trac
 query. LLVM does have a {{{trunc .. to}}} instruction, which may be of use
 to you, though admittedly I don't really know what's going on in your
 ticket.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4213#comment:28>
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