Debugging info on # spills?
Michael Matz
matz@suse.de
Thu Apr 8 14:17:00 GMT 2004
Hi,
On Thu, 8 Apr 2004, Dave Korn wrote:
> > But that doesn't say anything about the cost of the added spill code.
> > In the new-ra branch I have some small dumper which basically counts
> > the cost of all stack related loads and stores. Under the premise
^^^^^^^^^^^
> executed a hundred million times, the one spill costs that much more than
> the three. So 'number of spills' isn't a very useful metric because the
^^^^^^^^^^^^^^^^^^
See the difference?
(It uses basic block costs)
Ciao,
Michael.
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