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Re: -floop-optimize2
- From: Andrew Pinski <pinskia at physics dot uc dot edu>
- To: Scott Robert Ladd <scott dot ladd at coyotegulch dot com>
- Cc: GCC Mailing List <gcc at gcc dot gnu dot org>
- Date: Tue, 21 Jun 2005 12:14:27 -0400
- Subject: Re: -floop-optimize2
- References: <42B83B95.5090102@coyotegulch.com>
On Jun 21, 2005, at 12:08 PM, Scott Robert Ladd wrote:
I've noticed that -floop-optimize2 tends to be a pessimism on many
algorithms.
What version of GCC, if not the mainline, we don't care that much as
the new tree based loop and rtl based loop (-floop-optimize2) optimizers
don't implement as much as the old one did. And -floop-optimize2 turns
off the old one. Also the loop optimizers are still in development like
the rest of GCC.
Is -floop-optimize2 still in development, and not ready yet -- or are
the problems I'm seeing something that should be analyzed and reported
as a bug?
Really -floop-optimize2 turns off the old non CFG RTL based loop
optimizers
and nothing more.
-- Pinski