[GHC] #10788: performance regression involving minimum

[GHC]

#10788: performance regression involving minimum
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        Reporter:  rwbarton          |                   Owner:  ekmett
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Core Libraries    |                 Version:  7.10.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by nomeata):

 > So one solution would be to mark strictMinimum as INLINE, so that its
 unfolding stays small and both strictMinimum and foldl will be inlined at
 the use site?

 Tried that. The unfolding will then mention `foldr` instead of the above
 code, but is still too large. I was expecting the unfolding to mention
 `foldl1'`, as I thought the unfolding of something marked `INLINE` is
 never changed? Weird.

 Maybe someone else can give this a shot?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10788#comment:6>
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