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

[GHC]

#11981: unknown symbol `__udivti3' when BuildFlavour = perf-llvm
-------------------------------------+-------------------------------------
        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 Erik de Castro Lopo <erikd@…>):

 In [changeset:"bd0c31063551744d00796219174739216c398da5/ghc"
 bd0c3106/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="bd0c31063551744d00796219174739216c398da5"
 Fix GHCi perf-llvm build on x86_64

 With BuildFlavour set to `perf-llvm`, GHCi would fail as soon as it
 was run with:

   ghc-stage2: .../ghc-prim/dist-install/build/HSghc-prim-0.5.0.0.o:
   unknown symbol `__udivti3'
   ghc-stage2: unable to load package `ghc-prim-0.5.0.0'

 Fix this by adding `__udivti3` and `__umodti3` to RtsSymbols.c.

 Test Plan: Validate

 Reviewers: simonmar, austin, bgamari, Phyx, trofi

 Reviewed By: Phyx, trofi

 Subscribers: thomie

 Differential Revision: https://phabricator.haskell.org/D2449

 GHC Trac Issues: #11981
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11981#comment:9>
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