[GHC] #15350: gcdExtInteger violates assertion

[GHC]

#15350: gcdExtInteger violates assertion
-------------------------------------+-------------------------------------
        Reporter:  Bodigrim          |                Owner:  Bodigrim
            Type:  bug               |               Status:  patch
        Priority:  high              |            Milestone:  8.6.1
       Component:  Core Libraries    |              Version:  8.4.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Runtime crash     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D5042
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by Ben Gamari <ben@…>):

 In [changeset:"c331592130ef592b92084e7417581a4039bfa7d2/ghc" c331592/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="c331592130ef592b92084e7417581a4039bfa7d2"
 Correct limb length and assertion for gcdExtInteger

 Reviewers: hvr, bgamari, monoidal

 Reviewed By: monoidal

 Subscribers: monoidal, rwbarton, thomie, carter

 GHC Trac Issues: #15350

 Differential Revision: https://phabricator.haskell.org/D5042
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15350#comment:7>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler