[commit: ghc] master: A small GC optimisation (bef3da1)

[Simon Marlow]

Repository : ssh://darcs.haskell.org//srv/darcs/ghc

On branch  : master

http://hackage.haskell.org/trac/ghc/changeset/bef3da1e26639303fccbf26c312d2833eedb486e

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

commit bef3da1e26639303fccbf26c312d2833eedb486e
Author: Simon Marlow <marlowsd at gmail.com>
Date:   Wed Feb 2 12:30:49 2011 +0000

    A small GC optimisation
    Store the *number* of the destination generation in the Bdescr struct,
    so that in evacuate() we don't have to deref gen to get it.
    This is another improvement ported over from my GC branch.

 includes/rts/storage/Block.h |   43 ++++++++++++++-----
 includes/rts/storage/GC.h    |    6 +-
 rts/Arena.c                  |    2 +-
 rts/sm/Evac.c                |   95 +++++++++++++++++++++--------------------
 rts/sm/GC.c                  |    8 ++--
 rts/sm/GCThread.h            |    2 +-
 rts/sm/MarkWeak.c            |    2 +-
 rts/sm/Scav.c                |   26 ++++++-----
 8 files changed, 104 insertions(+), 80 deletions(-)


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

    git show bef3da1e26639303fccbf26c312d2833eedb486e