[GHC] #8532: Hyperbolic arc cosine fails on (-1) :: Complex r.

[GHC]

#8532: Hyperbolic arc cosine fails on (-1) :: Complex r.
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        Reporter:  leftaroundabout   |                Owner:  alekzcb
            Type:  bug               |               Status:  new
        Priority:  low               |            Milestone:  8.4.1
       Component:  Core Libraries    |              Version:  7.6.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |            Test Case:  numrun016
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D3916
       Wiki Page:                    |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"6458b8dcbd33b3c32f3c23f7e5b08fdc6e73ed46/ghc"
 6458b8dc/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="6458b8dcbd33b3c32f3c23f7e5b08fdc6e73ed46"
 base: Update acosh to handle -1::Complex

 Summary: Fixes #8532

 Reviewers: austin, hvr, bgamari

 Reviewed By: bgamari

 Subscribers: rwbarton, thomie

 GHC Trac Issues: #8532

 Differential Revision: https://phabricator.haskell.org/D3916
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8532#comment:14>
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