[GHC] #13629: sqrt should use machine instruction on x86_64

[GHC]

#13629: sqrt should use machine instruction on x86_64
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        Reporter:  bgamari           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.4.1
       Component:  Compiler (NCG)    |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Runtime           |            Test Case:
  performance bug                    |  numeric/num009
      Blocked By:                    |             Blocking:
 Related Tickets:  #13570            |  Differential Rev(s):  Phab:D3508
       Wiki Page:                    |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"9ac22183e405773ea7147728e593edd78f30a025/ghc"
 9ac22183/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="9ac22183e405773ea7147728e593edd78f30a025"
 nativeGen: Use SSE2 SQRT instruction

 Reviewers: austin, dfeuer

 Subscribers: dfeuer, rwbarton, thomie

 GHC Trac Issues: #13629

 Differential Revision: https://phabricator.haskell.org/D3508
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13629#comment:7>
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