[GHC] #10664: T8131 times out on master

[GHC]

#10664: T8131 times out on master
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        Reporter:  bgamari           |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:  7.12.1
       Component:  Compiler          |                 Version:  7.11
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Other             |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by bgamari):

 It appears that this is due to a rework I made for the LLVM backend,
 681973c31c614185229bdae4f6b7ab4f6e64753d. Here I explicitly forced the
 alignment argument to `%memcpy` calls to ensure that `pprPgmError` fired.
 I did this as otherwise the should-fail test I introduced to test the
 feature would fail in the case of the NCG (which apparently sometimes
 never forces the alignment).

 Admittedly this was a bit of a large hammer to just make some tests pass.
 I'm going to remove the `seq` and just only run the test against the LLVM
 backend.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10664#comment:7>
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