Re: [PATCH] add statistics counting to postreload, copy-rename, and math-opts

[Nathan Froyd <froydnj@codesourcery.com>]

On Tue, Apr 12, 2011 at 04:27:01PM +0200, Richard Guenther wrote:
> On Tue, Apr 12, 2011 at 4:16 PM, Nathan Froyd <froydnj@codesourcery.com> wrote:
> > It's a shame more passes don't make use of the statistics_*
> > infrastructure.  This patch is a step towards rectifying that and adds
> > statistics_counter_event calls to passes mentioned in $SUBJECT.
> > postreload-gcse already tracked the stats for the dump file and so only
> > needs the statistics_counter_event calls; the other passes needed to be
> > taught about the statistics also.
> 
> Ok if there are no complaints within 24h.  I actually have a local patch
> adding many of these which I use whenever fiddling with the pass pipeline ...
> (attached).

Thanks.  I may go twiddle that patch to do something similar to mine and
submit that.  Do you use your patch for checking that the same set of
optimizations get performed, then?  I'm interested in using the
statistics for identifying passes that don't buy us much across a wide
variety of codebases.  (Suggestions for suitable ones welcome!)

-Nathan