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    SubjectRe: [PATCH 00/10] jump label: introduce very_[un]likely + cleanups + docs
    On Wed, Feb 22, 2012 at 09:14:19AM -0800, Richard Henderson wrote:
    > On 02/22/12 07:32, Peter Zijlstra wrote:
    > > So I clicked the link Jason provided in his 10/10 Documentation patch
    > > and stumbled upon:
    > >
    > > http://gcc.gnu.org/ml/gcc-patches/2009-07/msg01558.html
    > >
    > > Where rth suggests that __attribute__((hot,cold)) might work on the
    > > destination labels. Trying this my compiler (4.6.1+crap) pukes all over
    > > me suggesting this isn't (yet) implemented.
    > >
    > > Richard, is something like that still on the table?
    >
    > It's still a possibility. I gave Jason a patch for that quite some time
    > ago; I don't recall hearing whether it turned out to actually be useful.
    >
    >
    > r~

    I don't think I ever quite got it working, and I've unfortunately
    misplaced it at this point. I am definitely interested in trying it
    again though. If you can re-send it, I'll try it.

    Also, I think I seem to recall it wouldn't help the -Os case, b/c we
    don't get block re-ordering?

    Thanks,

    -Jason


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