[GHC] #8974: 64 bit windows executable built with ghc-7.9.20140405+LLVM segfaults

[GHC]

#8974: 64 bit windows executable built with ghc-7.9.20140405+LLVM segfaults
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        Reporter:  awson            |                Owner:
            Type:  bug              |               Status:  new
        Priority:  high             |            Milestone:  8.0.1
       Component:  Compiler (LLVM)  |              Version:  7.9
      Resolution:                   |             Keywords:
Operating System:  Windows          |         Architecture:  x86_64 (amd64)
 Type of failure:  Runtime crash    |            Test Case:
      Blocked By:                   |             Blocking:
 Related Tickets:                   |  Differential Rev(s):
       Wiki Page:                   |
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Comment (by GordonBGood):

 Replying to [comment:46 Phyx-]:
 > Binutils 2.27-2 has been released on msys, this contains Awson's patch.

 Awson's patch doesn't seem to be enough:  Tried Msys2
 mingw64/mingw-w64-x86_64-binutils 2.27-2 with LLVM 3.7 and 64-bit GHC
 8.0.1 on Windows with a simple Sieve of Eratosthenes Program, which while
 it compiles using the -fllvm switch still segfaults on execution but does
 not segfault on execution using no -fllvm switch (defaults to using NCG).

 However, Awson's patch does help as other versions of a similar program
 can be compiled with the same platform and same -fllvm switch to run
 successfully (and 25% faster than with NCG) whereas they never have
 before.

 I need to boil down a version that consistently fails using -fllvm and not
 without and will submit it here...

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8974#comment:47>
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