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Re: GCC viciously beaten by ICC in trig test!
- From: Scott Robert Ladd <coyote at coyotegulch dot com>
- To: gcc mailing list <gcc at gcc dot gnu dot org>
- Date: Sun, 14 Mar 2004 20:39:17 -0500
- Subject: Re: GCC viciously beaten by ICC in trig test!
- References: <4054ED19.8020009@coyotegulch.com> <4054F4D9.50905@suse.de>
Paolo Carlini wrote:
I don't have ready at hand tree-ssa but I have lno-branch and the below
are my numbers (P4-2400)
(-O2 -std=c99 -fomit-frame-pointer -ftree-loop-optimize -fscalar-evolutions
-funroll-loops)
Hmm... I haven't tried the lno-branch compiler. Lord knows, there aren't
enough versions of GCC on my system already (12 at last count). I *am*
looking forward to vectorization.
According to the GCC docs, -ftree-loop-optimize is enabled at -O and
higher. I'm not familiar with -fscalar-evolutions.
--
Scott Robert Ladd
Coyote Gulch Productions (http://www.coyotegulch.com)
Software Invention for High-Performance Computing