[GHC] #11564: Possible overzealous unfolding

[GHC]

#11564: Possible overzealous unfolding
-------------------------------------+-------------------------------------
        Reporter:  simonmar          |                Owner:
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:
       Component:  Compiler          |              Version:  8.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D1900
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by simonpj):

 Well yes, I guess that's maybe what tests/alloc/T5631 measures?  I don't
 even know where that test is.

 But why would the compiler allocate twice as much?  If `-dverbose-
 core2core` is identical, it can't be that the program being compiled is
 getting bigger.  Very mysterious.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11564#comment:8>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler