[lkml]   [2008]   [Mar]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: K8, EFFICEON and CORE2 support the cmovxx instructions.
    On Sat, Mar 15, 2008 at 10:06:32PM +0100, Alexander van Heukelum wrote:
    > > > I'm quite sure that K8, EFFICEON and CORE2 support HAVE_CMOV, but
    > > > they did not set X86_CMOV.
    > > >
    > >
    > > Crusoe has CMOV as well.

    So does GEODE_LX BTW

    > I believe you... and the Makefile_32.cpu: it gets a -march=i686. I
    > also found out that I missed X86_ELAN, which is treated as a i486.
    > Also, MGEODE_LX does not get any optimization flags. I think that
    > is unintentional, but what should they be?

    in my experience (on user-space code), optimizing for "i586" gives
    good results. However, the cache is small, so everything which can
    reduce code size (especially loop/jump/function alignment) is worth


     \ /
      Last update: 2008-03-15 22:15    [W:0.018 / U:79.996 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site