[GHC] #9067: Optimize clearNursery by short-circuiting when we get to currentNursery

[GHC]

#9067: Optimize clearNursery by short-circuiting when we get to currentNursery
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              Reporter:  ezyang      |            Owner:  ezyang
                  Type:  task        |           Status:  closed
              Priority:  low         |        Milestone:  7.10.1
             Component:  Runtime     |          Version:  7.9
  System                             |         Keywords:
            Resolution:  fixed       |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:  Runtime     |  Related Tickets:
  performance bug                    |
             Test Case:              |
              Blocking:              |
Differential Revisions:  Phab:D318   |
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Changes (by ezyang):

 * milestone:   => 7.10.1


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9067#comment:4>
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