[GHC] #10565: GHC 7.10.2 RC: the impossible happened on hPDB-examples-1.2.0.2

[GHC]

#10565: GHC 7.10.2 RC: the impossible happened on hPDB-examples-1.2.0.2
---------------------------------+--------------------------------------
        Reporter:  snoyberg      |                Owner:  bgamari
            Type:  bug           |               Status:  closed
        Priority:  normal        |            Milestone:  7.10.2
       Component:  Compiler      |              Version:  7.10.2-rc1
      Resolution:  wontfix       |             Keywords:
Operating System:  Linux         |         Architecture:  x86_64 (amd64)
 Type of failure:  None/Unknown  |            Test Case:
      Blocked By:                |             Blocking:
 Related Tickets:                |  Differential Rev(s):
       Wiki Page:                |
---------------------------------+--------------------------------------

Comment (by MichalGajda):

 It would be indeed nice, if GHC could factorize pattern matching to be
 logarithmic in all cases. That would greatly improve performance in case
 of integer range lookup, and so for much of the token comparison codes.

 Of course clever people already use hashes and atoms, but ability to
 program at the highest possible level will always bring numerous fans to
 Haskell.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10565#comment:5>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler