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Re: Avoid creating irreducible loops with threading jumps
- From: Steven Bosscher <stevenb at suse dot de>
- To: gcc-patches at gcc dot gnu dot org, law at redhat dot com
- Date: Fri, 4 Mar 2005 23:17:27 +0100
- Subject: Re: Avoid creating irreducible loops with threading jumps
- Organization: SUSE Labs
- References: <1109972028.18683.99.camel@localhost.localdomain>
On Friday 04 March 2005 22:33, Jeffrey A Law wrote:
> We're probably going to see a net slowdown of ~1% for this patch
> as-is (and another percent for the next and last in this series). I'll
> be working on recovering more of the compile-time performance drops
> once I install the final patch.
This is the second 1% slowdown, with a third apparently coming up. Many
people (including you) have tried very hard to speed the compiler up, so
losing 3% like this is a real shame. Why can't these patches that slow
the compiler down wait until you've found a way to win back some speed?
Gr.
Steven