[GHC] #13344: Core string literal patch regresses compiler performance considerably

[GHC]

#13344: Core string literal patch regresses compiler performance considerably
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        Reporter:  bgamari           |                Owner:  bgamari
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  8.1
      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 rwbarton):

 > (I seem to recall you mentioning a gain of roughly 1% from one or the
 other, but it's not in this ticket, perhaps IRC..)

 Yes, I think I mentioned on IRC that your D1259 sped up the build by about
 1%; likely because it fixes CSE, but not sure.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13344#comment:23>
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