[GHC] #10260: last uses too much space with optimizations disabled

[GHC]

#10260: last uses too much space with optimizations disabled
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        Reporter:  rwbarton          |                   Owner:  nomeata
            Type:  bug               |                  Status:  patch
        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:  Phab:D847
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Comment (by rwbarton):

 Replying to [comment:5 nomeata]:
 > @rwbarton, just to make sure I don’t get you wrong: Are you talking
 about compiling a "normal" program using last, using a normally build
 compiler, or are you talking about compiling the base libraries without
 optimization, e.g. during GHC development?

 I mean using a compiler built with "perf", e.g. the 7.10.1 release, and
 compiling the user program without optimization.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10260#comment:10>
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