[GHC] #11382: Optimize Data.Char

[GHC]

#11382: Optimize Data.Char
-------------------------------------+-------------------------------------
        Reporter:  bgamari           |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Core Libraries    |              Version:  7.10.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Runtime           |  Unknown/Multiple
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by ekmett):

 Didn't David Feuer try some things along this line?

 I seem to recall the branching overhead to split off the ASCII cases was
 hard to overcome in practice.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11382#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler