[GHC] #11981: unknown symbol `__udivti3' when BuildFlavour = perf-llvm

[GHC]

#11981: unknown symbol `__udivti3' when BuildFlavour = perf-llvm
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        Reporter:  erikd             |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.0.2
       Component:  Compiler          |              Version:  8.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Other             |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by erikd):

 Before commit [changeset:"bd0c31063551744d00796219174739216c398da5/ghc"
 bd0c3106/ghc] there were over 400 failing tests, and after its less than
 50, but the reamaining 50 all seem `ghc-iserv` related. Two examples:

 {{{
 ghc-stage2: ghc-iserv terminated (-11)
 *** unexpected failure for TH_reifyLocalDefs(ext-interp)
 }}}

 {{{
 T2700.hs:1:1: error:
     Exception when trying to run compile-time code:
       ghc-stage2: ghc-iserv terminated (-11)
     Code: do { d <- sigD (mkName "foo") [t| (Int -> Bool) -> Bool |];
                runIO (hPutStrLn stderr (pprint d));
                return [] }
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11981#comment:10>
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