From: Richard Henderson <rth@redhat.com>
To: Toon Moene <toon@moene.indiv.nluug.nl>
Cc: gcc@gcc.gnu.org
Subject: Re: Alias analysis - does base_alias_check still work ?
Date: Fri, 19 Jul 2002 13:31:00 -0000 [thread overview]
Message-ID: <20020719095446.A15598@redhat.com> (raw)
In-Reply-To: <3D3824DA.B198DC39@moene.indiv.nluug.nl>; from toon@moene.indiv.nluug.nl on Fri, Jul 19, 2002 at 04:40:26PM +0200
On Fri, Jul 19, 2002 at 04:40:26PM +0200, Toon Moene wrote:
> Which begs the question: Is there a reason -fschedule-insns isn't on by
> default when using -O2 ?
Yes. The fact that the scheduler doesn't understand register
pressure means that pre-register-allocation scheduling generally
sucks eggs on x86.
r~
next prev parent reply other threads:[~2002-07-19 16:54 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-16 14:10 Toon Moene
2002-07-19 11:00 ` Toon Moene
2002-07-19 11:02 ` Daniel Berlin
2002-07-19 11:03 ` David Edelsohn
2002-07-19 13:31 ` Richard Henderson [this message]
2002-07-20 2:13 ` Toon Moene
2002-07-20 11:42 ` Toon Moene
2002-07-20 12:05 ` Richard Henderson
2002-07-20 12:12 ` Richard Henderson
2002-07-21 10:01 ` Toon Moene
2002-07-21 14:23 ` Richard Henderson
2002-07-21 15:14 ` Toon Moene
2002-07-21 22:41 ` Toon Moene
2002-07-22 0:03 ` Richard Henderson
2002-07-22 16:42 ` Toon Moene
2002-07-23 2:12 ` Andreas Jaeger
2002-08-12 7:49 ` Jeff Law
2002-08-12 7:53 ` Jan Hubicka
2002-08-12 9:56 ` Richard Henderson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20020719095446.A15598@redhat.com \
--to=rth@redhat.com \
--cc=gcc@gcc.gnu.org \
--cc=toon@moene.indiv.nluug.nl \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).