[GHC] #13059: High memory usage during compilation

[GHC]

#13059: High memory usage during compilation
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        Reporter:  domenkozar        |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  8.0.2-rc2
      Resolution:                    |             Keywords:  Generics
Operating System:  Unknown/Multiple  |         Architecture:  x86_64
 Type of failure:  Compile-time      |  (amd64)
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #5642, #11068     |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 Interesting!  It looks to me as if the new behaviour is more faithfully
 following what the user said than the old behaviour.  In this case, it is
 inlining `$gdm_size Foo $dStoreFoo` at every call of `size` at type `Foo`;
 and that's just what you'd expect from an INLINE pragma on the generic
 default method of `Store`.

 So maybe that was a bug in the old version, now fixed.  And indeed,
 refraining from inlining the entire body of `size` at every call site
 seems like a good thing.

 Case closed?

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13059#comment:22>
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