[GHC] #9142: LLVM HEAD rejects aliases used by LLVM codegen

GHC ghc-devs at haskell.org
Sun May 25 17:15:33 UTC 2014


#9142: LLVM HEAD rejects aliases  used by LLVM codegen
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        Reporter:  bgamari           |            Owner:
            Type:  bug               |           Status:  new
        Priority:  high              |        Milestone:
       Component:  Compiler          |          Version:  7.8.2
      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 scpmw):

 Not quite sure I understand how your patch works - isn't this basically
 allocating a bunch of static null-initialized `i8` fields to point to?
 That's hardly what we want, even if it compiles.

 It would be really interesting to get a statement from LLVM people on
 this. If they think that we are mis-using aliases, that's reason enough to
 do something else. One possible solution that occurred to me was that we
 could use type aliases - but instead of writing the definitions at the end
 of the session we'd close the file and /prepend/ them. That could be a
 cheap and easy way to get the LLVM parser to like us again.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9142#comment:4>
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