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[Bug tree-optimization/19794] [meta-bug] Jump threading related bugs
- From: "law at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 6 Apr 2005 17:41:39 -0000
- Subject: [Bug tree-optimization/19794] [meta-bug] Jump threading related bugs
- References: <20050206175258.19794.kazu@cs.umass.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From law at redhat dot com 2005-04-06 17:41 -------
Subject: Re: [meta-bug] Jump threading
related bugs
On Wed, 2005-04-06 at 06:38 +0000, pinskia at gcc dot gnu dot org wrote:
> ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-04-06 06:38 -------
> (In reply to comment #7)
> > They don't even bear-out on other x86 platforms -- my older P3 and AMD
> > boxes don't show the same kind of big improvement (they show a small
> > improvements). However, both of my P4s show big improvements.
>
> Huh, both of those targets are still x86.
And my point was that the improvement from everything I've managed to
gather so far is either specific to the P4 or possibly specific to the
size of the cache on the P4.
> So what about on say Power4 or PowerPC 970?
I don't have either of those. My non-x86 boxes are all, err, old. My
PPC I think is a 233MHZ PPC750. It'd probably take more than I day to
get things built and running on that ancient box. I only use it to
diagnose PPC specific problems.
jeff
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19794