[GHC] #14667: Compiling a function with a lot of alternatives bottlenecks on insertIntHeap

[GHC]

#14667: Compiling a function with a lot of alternatives bottlenecks on
insertIntHeap
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        Reporter:  niteria           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by niteria):

 The commit referenced above is related, but solves a different problem. I
 didn't expect it to be referenced here.

 The issue still persists, I'd like to revert
 https://phabricator.haskell.org/rGHC5a1a2633553, but that commit was
 supposed to be a performance win, so it'd be helpful if I knew that's what
 we want to do.

 I hoped someone would tell me what to test before putting up a diff with
 the revert. Should I run nofib, or is ./validate enough?

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14667#comment:3>
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