[GHC] #7206: Implement cheap build

[GHC]

#7206: Implement cheap build
-------------------------------------+-------------------------------------
        Reporter:  simonpj           |                Owner:  simonpj
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  ⊥
       Component:  Compiler          |              Version:  7.4.2
      Resolution:                    |             Keywords:  FloatOut
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #8763, #13422     |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by osa1):

 * Attachment "cheap_build_nofib" added.

 nofib reuslts with `wip/cheap-build-osa1` branch.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7206>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler