Repository : ssh://darcs.haskell.org//srv/darcs/ghc On branch : master
http://hackage.haskell.org/trac/ghc/changeset/3a6b1bfb08602a8193b0025f0fe47ec8ddf8dad2 >--------------------------------------------------------------- commit 3a6b1bfb08602a8193b0025f0fe47ec8ddf8dad2 Author: Simon Marlow <marlo...@gmail.com> Date: Fri Oct 26 11:12:49 2012 +0100 Turn on -O2 for the RTS by default Optimisation now makes a difference when compiling .cmm code, because it enables the optimisation passes in CmmPipeline. Recently validate has not been optimising the .cmm code because it uses SRC_HC_OPTS=-O0, which explains why I couldn't reproduce #7366 in validate (the bug miscompiled rts/PrimOps.cmm). >--------------------------------------------------------------- mk/config.mk.in | 8 +++++--- 1 files changed, 5 insertions(+), 3 deletions(-) diff --git a/mk/config.mk.in b/mk/config.mk.in index a906d25..f8d4d6a 100644 --- a/mk/config.mk.in +++ b/mk/config.mk.in @@ -360,9 +360,11 @@ LAX_DEPENDENCIES = NO # ---------------------------------------------------------------------------- # Options for GHC's RTS -# For an optimised RTS (you probably don't want to change these; we build -# a debugging RTS by default now. Use -debug to get it). -GhcRtsHcOpts=-optc-O2 +# Build an optimised RTS. Remember that we need to turn on +# optimisation both for C code (-optc-O2) and .cmm code (-O2). For +# the debugging RTS flavour, rts/ghc.mk overrides these to turn off +# optimisation. +GhcRtsHcOpts=-optc-O2 -O2 GhcRtsCcOpts=-fomit-frame-pointer # Include the front panel code? Needs GTK+. _______________________________________________ Cvs-ghc mailing list Cvs-ghc@haskell.org http://www.haskell.org/mailman/listinfo/cvs-ghc
