[GHC] #14383: Allocation in VS up 500%

[GHC]

#14383: Allocation in VS up 500%
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           Reporter:  nomeata        |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  low            |         Milestone:
          Component:  Compiler       |           Version:  8.3
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  Runtime
  Unknown/Multiple                   |  performance bug
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 Somewhere in between the commits fee253fc and 99c61e22 nofib’s `VS`
 benchmark has allocations increased by 500%. perf.haskell.org is currently
 defuct (linker errors due to recent changes to the ffi stuff, I believe
 Moritz is trying to find that out), so I cannot just look there to see
 which commit broke it. But maybe someone feels like bisecting this.

 If not maybe perf.haskell.org will be able to tell us once its fixed
 (although keeping up with GHC commits there is a bit of a pain these
 days.)

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14383>
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