[commit: containers] master: Improve list fusion. (0c5e71c)

[Paolo Capriotti]

Repository : ssh://darcs.haskell.org//srv/darcs/packages/containers

On branch  : master

http://hackage.haskell.org/trac/ghc/changeset/0c5e71cd7d0a76d09dcd6ba3d95c468d70d6d6a9

>---------------------------------------------------------------

commit 0c5e71cd7d0a76d09dcd6ba3d95c468d70d6d6a9
Author: Milan Straka <fox at ucw.cz>
Date:   Sun Mar 4 16:29:42 2012 +0100

    Improve list fusion.
    
    * Allow fusable methods to be converted back to the original call when
      no fusion happens. For that, foldlFB and foldrFB are used, inspired by
      mapFB from Prelude.
    
    * Remove RULES for aliases like toList, assocs, elems, just INLINE them.

 Data/IntMap/Base.hs |   39 ++++++++++++++++++++++++++++++++-------
 Data/IntSet.hs      |   31 ++++++++++++++++++++++++++-----
 Data/Map/Base.hs    |   39 ++++++++++++++++++++++++++++++++-------
 Data/Set.hs         |   31 ++++++++++++++++++++++++++-----
 4 files changed, 116 insertions(+), 24 deletions(-)


Diff suppressed because of size. To see it, use:

    git show 0c5e71cd7d0a76d09dcd6ba3d95c468d70d6d6a9