From: Eric Botcazou <ebotcazou@adacore.com>
To: Bernd Schmidt <bernds@codesourcery.com>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>,
Steve Ellcey <sje@cup.hp.com>,
"Vladimir N. Makarov" <vmakarov@redhat.com>
Subject: Re: Correct fix for scheduler bug PR11320
Date: Thu, 14 Jul 2011 12:19:00 -0000 [thread overview]
Message-ID: <201107141357.15147.ebotcazou@adacore.com> (raw)
In-Reply-To: <4E1EBEFE.3080002@codesourcery.com>
> The real problem here is that the ia64 backend lies to the rest of the
> compiler; it produces a load instruction without showing a MEM anywhere
> in the instruction pattern. Hence, the following patch, which reverts
> the bogus scheduler changes and adds a MEM to a pattern in ia64.md.
This is probably the root cause of the problem, indeed. But you don't revert
everything so, if this isn't an oversight, then the ChangeLog is incorrect.
And there is another change in sched-deps.c not mentioned in the ChangeLog.
--
Eric Botcazou
next prev parent reply other threads:[~2011-07-14 11:59 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-14 10:05 Bernd Schmidt
2011-07-14 11:29 ` Andrey Belevantsev
2011-07-14 11:42 ` Bernd Schmidt
2011-07-14 12:19 ` Eric Botcazou [this message]
2011-07-14 12:24 ` Bernd Schmidt
2011-07-14 12:39 ` Eric Botcazou
2011-07-14 13:09 ` Bernd Schmidt
2011-07-14 13:46 ` Eric Botcazou
2011-07-14 16:11 ` Richard Henderson
2011-07-14 16:27 ` Bernd Schmidt
2011-07-14 16:30 ` Bernd Schmidt
2011-07-14 16:34 ` Richard Henderson
2011-07-14 16:43 ` Bernd Schmidt
2011-07-14 16:44 ` Richard Henderson
2011-07-14 16:48 ` Bernd Schmidt
2011-07-14 19:48 ` Richard Henderson
2011-07-19 13:00 ` Andreas Schwab
2011-07-19 14:13 ` Bernd Schmidt
2011-07-19 14:41 ` Andreas Schwab
2011-07-22 14:12 ` Bernd Schmidt
2011-07-22 17:28 ` Eric Botcazou
2011-07-22 18:36 ` Richard Henderson
2011-07-22 18:44 ` Bernd Schmidt
2011-08-05 17:54 ` Bernd Schmidt
2011-08-05 18:45 ` 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=201107141357.15147.ebotcazou@adacore.com \
--to=ebotcazou@adacore.com \
--cc=bernds@codesourcery.com \
--cc=gcc-patches@gcc.gnu.org \
--cc=sje@cup.hp.com \
--cc=vmakarov@redhat.com \
/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).