[GHC] #8523: blowup in space/time for type checking and object size for high arity tuples

[GHC]

#8523: blowup in space/time for type checking and object size for high arity
tuples
-------------------------------------------------+-------------------------
        Reporter:  carter                        |            Owner:
            Type:  bug                           |           Status:  new
        Priority:  normal                        |        Milestone:
       Component:  Compiler                      |          Version:  7.6.3
      Resolution:                                |         Keywords:
Operating System:  Unknown/Multiple              |     Architecture:
 Type of failure:  Compile-time performance bug  |  Unknown/Multiple
       Test Case:                                |       Difficulty:
        Blocking:                                |  Unknown
                                                 |       Blocked By:
                                                 |  Related Tickets:
-------------------------------------------------+-------------------------

Comment (by simonpj):

 I have not investigated yet (busy), but my nose tells me that it is indeed
 similar to #5642, and in particular is a symptom of Section 2.3 of
 [http://research.microsoft.com/en-
 us/um/people/simonpj/papers/variant-f/index.htm Scrap your type
 applications].  Bit I could be wrong.

 Simon

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8523#comment:3>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler