This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: Compilation performance comparison of 3.5.0 and TreeSSA treeson MICO sources as requested in: [tree-ssa] Merge status 2004-05-03
- From: Laurent GUERBY <laurent at guerby dot net>
- To: Robert Dewar <dewar at gnat dot com>
- Cc: Joe dot Buck at synopsys dot COM, dnovillo at redhat dot com, gcc at gcc dot gnu dot org, kenner at vlsi1 dot ultra dot nyu dot edu
- Date: Wed, 05 May 2004 20:09:26 +0200
- Subject: Re: Compilation performance comparison of 3.5.0 and TreeSSA treeson MICO sources as requested in: [tree-ssa] Merge status 2004-05-03
- References: <20040505174211.EEDB3F2A09@nile.gnat.com>
A -Og flag that would do all optimizations that
- don't take too much time and memory ressources
- still allow perfect debugability
- tend to generate smalled code and debug information
Would be just perfect :).
I would fix a rule to allow up to 5-10%
more compile time and memory at -Og than -O0
and zero gdb breakage.
But such optimization should be likely to reduce compile time anyway...
Laurent