[GHC] #12028: Large let bindings are 6x slower (since 6.12.x to 7.10.x)

[GHC]

#12028: Large let bindings are 6x slower (since 6.12.x to 7.10.x)
-------------------------------------+-------------------------------------
        Reporter:  tommd             |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by tommd):

 * Attachment "regression-md5.hs" added.

 A slice of pureMD5 that shows performance issues in GHC

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12028>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler