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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/54063] [4.8 regression] on powerpc64 gcc 4.8 generates larger code for global variable accesses than gcc 4.7
Date: Tue, 04 Dec 2012 13:05:00 -0000	[thread overview]
Message-ID: <bug-54063-4-m8GU6TxX2P@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-54063-4@http.gcc.gnu.org/bugzilla/>


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54063

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-12-04 13:05:05 UTC ---
While the memory load is split already during reload, the set for &head is only
split during split2 pass, which is after postreload_cse (and gcse2) which are
the last CSE-ish passes I think.  So perhaps you could tweak machine reorg pass
to handle some of the easy cases, or what exactly is the reason for running
split2 after postreload CSE instead of before it?


  parent reply	other threads:[~2012-12-04 13:05 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-21 12:05 [Bug target/54063] New: " mikpe at it dot uu.se
2012-07-21 18:47 ` [Bug target/54063] " mikpe at it dot uu.se
2012-07-23  2:14 ` amodra at gmail dot com
2012-07-23  8:27 ` rguenth at gcc dot gnu.org
2012-09-19 13:57 ` rguenth at gcc dot gnu.org
2012-12-04 13:05 ` jakub at gcc dot gnu.org [this message]
2013-03-22 14:44 ` [Bug target/54063] [4.8/4.9 regression] on powerpc64 gcc 4.8/4.9 " jakub at gcc dot gnu.org
2013-05-31 10:58 ` jakub at gcc dot gnu.org
2013-10-16  9:49 ` jakub at gcc dot gnu.org
2013-10-25 11:10 ` rguenth at gcc dot gnu.org
2014-05-22  9:03 ` [Bug target/54063] [4.8/4.9/4.10 regression] on powerpc64 gcc 4.8/4.9/4.10 " rguenth at gcc dot gnu.org
2014-12-19 13:25 ` [Bug target/54063] [4.8/4.9/5 regression] on powerpc64 gcc 4.8/4.9/5 " jakub at gcc dot gnu.org
2015-03-24 18:47 ` steven at gcc dot gnu.org
2015-06-23  8:17 ` [Bug target/54063] [4.8/4.9/5/6 regression] on powerpc64 gcc 4.8/4.9/5/6 " rguenth at gcc dot gnu.org
2015-06-26 19:55 ` [Bug target/54063] [4.9/5/6 regression] on powerpc64 gcc 4.9/5/6 " jakub at gcc dot gnu.org
2015-06-26 20:27 ` jakub at gcc dot gnu.org
2020-03-12 11:58 ` [Bug target/54063] [8/9/10 regression] on powerpc64 gcc 4.9/8 " jakub at gcc dot gnu.org
2021-06-01  8:05 ` [Bug target/54063] [9/10/11/12 " rguenth at gcc dot gnu.org
2021-11-30 14:38 ` roger at nextmovesoftware dot com
2021-11-30 17:00 ` segher at gcc dot gnu.org
2022-05-27  9:34 ` [Bug target/54063] [10/11/12/13 " rguenth at gcc dot gnu.org
2022-06-28 10:30 ` jakub at gcc dot gnu.org
2023-04-20  8:46 ` [Bug target/54063] [10/11/12/13/14 " guihaoc at gcc dot gnu.org
2023-07-07 10:29 ` [Bug target/54063] [11/12/13/14 " rguenth at gcc dot gnu.org

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