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From: "hjl dot tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/39942] Nonoptimal code - leaveq; xchg   %ax,%ax; retq
Date: Fri, 15 May 2009 04:32:00 -0000	[thread overview]
Message-ID: <20090515043213.22372.qmail@sourceware.org> (raw)
In-Reply-To: <bug-39942-17483@http.gcc.gnu.org/bugzilla/>



------- Comment #36 from hjl dot tools at gmail dot com  2009-05-15 04:32 -------
Created an attachment (id=17871)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17871&action=view)
An updated patch

A few comments:

1. 3 branch limit is per 16byte page, not 16byte window.
2. We should allow 3 branches in a 16byte page.
3. When we have 4 branches in a 16byte page, we only need to
pad to the 16byte page boundary before the 4th branch, which
will start at the next 16byte page.


-- 

hjl dot tools at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #17870|0                           |1
        is obsolete|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39942


  parent reply	other threads:[~2009-05-15  4:32 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-28 12:20 [Bug c/39942] New: " vvv at ru dot ru
2009-04-28 13:42 ` [Bug target/39942] " pinskia at gcc dot gnu dot org
2009-04-28 17:05 ` vvv at ru dot ru
2009-04-28 17:10 ` vvv at ru dot ru
2009-04-28 17:15 ` vvv at ru dot ru
2009-04-28 17:37 ` ubizjak at gmail dot com
2009-04-28 21:19 ` vvv at ru dot ru
2009-04-28 21:23 ` pinskia at gcc dot gnu dot org
2009-04-28 21:47 ` ubizjak at gmail dot com
2009-04-28 21:53 ` pinskia at gcc dot gnu dot org
2009-04-28 21:54 ` ubizjak at gmail dot com
2009-04-29  7:46 ` vvv at ru dot ru
2009-04-29  7:55 ` vvv at ru dot ru
2009-04-29  9:32 ` jakub at gcc dot gnu dot org
2009-04-29 10:13 ` jakub at gcc dot gnu dot org
2009-04-29 19:17 ` vvv at ru dot ru
2009-04-30  9:07 ` jakub at gcc dot gnu dot org
2009-05-12 16:41 ` vvv at ru dot ru
2009-05-13  8:31 ` jakub at gcc dot gnu dot org
2009-05-13 11:43 ` vvv at ru dot ru
2009-05-13 13:32 ` rguenth at gcc dot gnu dot org
2009-05-13 17:13 ` vvv at ru dot ru
2009-05-13 18:22 ` ubizjak at gmail dot com
2009-05-13 18:34 ` rguenth at gcc dot gnu dot org
2009-05-13 18:45 ` hjl dot tools at gmail dot com
2009-05-13 18:57 ` vvv at ru dot ru
2009-05-13 19:06 ` vvv at ru dot ru
2009-05-13 19:09 ` jakub at gcc dot gnu dot org
2009-05-13 19:19 ` vvv at ru dot ru
2009-05-13 21:44 ` hjl dot tools at gmail dot com
2009-05-14  9:01 ` vvv at ru dot ru
2009-05-14 15:16 ` jakub at gcc dot gnu dot org
2009-05-14 15:58 ` hjl dot tools at gmail dot com
2009-05-14 18:37 ` hjl dot tools at gmail dot com
2009-05-14 19:44 ` vvv at ru dot ru
2009-05-15  2:23 ` hjl dot tools at gmail dot com
2009-05-15  4:32 ` hjl dot tools at gmail dot com [this message]
2009-05-15  7:56 ` jakub at gcc dot gnu dot org
2009-05-15 12:11 ` jakub at gcc dot gnu dot org
2009-05-15 12:12 ` jakub at gcc dot gnu dot org
2009-05-15 14:35 ` hjl dot tools at gmail dot com
2009-05-15 16:25 ` jakub at gcc dot gnu dot org
2009-05-15 18:18 ` jakub at gcc dot gnu dot org
2009-05-15 18:23 ` jakub at gcc dot gnu dot org
2009-05-15 23:06 ` hjl dot tools at gmail dot com
2009-05-16  6:38 ` jakub at gcc dot gnu dot org
2009-05-16  7:10 ` jakub at gcc dot gnu dot org
2009-05-16  7:12 ` jakub at gcc dot gnu dot org
2009-05-18 17:21 ` hjl at gcc dot gnu dot org
2009-05-20 21:38 ` vvv at ru dot ru
2009-05-20 22:09 ` jakub at gcc dot gnu dot org
2009-05-21 13:22 ` jakub at gcc dot gnu dot org
2009-05-21 13:26 ` jakub at gcc dot gnu dot org
     [not found] <bug-39942-4@http.gcc.gnu.org/bugzilla/>
2020-04-14 21:20 ` peter at cordes dot ca

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