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From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/18316] Missed IV optimization Date: Sun, 14 Sep 2008 04:03:00 -0000 [thread overview] Message-ID: <20080914040220.9467.qmail@sourceware.org> (raw) In-Reply-To: <bug-18316-280@http.gcc.gnu.org/bugzilla/> ------- Comment #13 from pinskia at gcc dot gnu dot org 2008-09-14 04:02 ------- Still the extra mr is still there. In fact for PPC64, it is even worse as there are two extra instructions: .L2: lwa 11,0(7) extsw 9,0 sldi 11,11,2 add 0,0,10 stwx 6,3,11 lwz 11,0(8) rldicl 0,0,0,32 cmpw 7,11,9 bgt 7,.L2 vs: .L7: lwa 9,0(7) add 0,0,11 sldi 9,9,2 extsw 0,0 stwx 10,3,9 lwz 9,0(8) cmpw 7,9,0 bgt 7,.L7 blr -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
next prev parent reply other threads:[~2008-09-14 4:03 UTC|newest] Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <bug-18316-280@http.gcc.gnu.org/bugzilla/> 2007-12-17 8:14 ` steven at gcc dot gnu dot org 2008-09-14 4:03 ` pinskia at gcc dot gnu dot org [this message] 2010-02-12 21:46 ` steven at gcc dot gnu dot org [not found] <bug-18316-4@http.gcc.gnu.org/bugzilla/> 2012-11-08 23:00 ` steven at gcc dot gnu.org 2004-11-06 16:39 [Bug tree-optimization/18316] New: " steven at gcc dot gnu dot org 2004-11-06 17:00 ` [Bug tree-optimization/18316] " pinskia at gcc dot gnu dot org 2005-01-23 14:37 ` steven at gcc dot gnu dot org 2005-01-23 14:58 ` rakdver at gcc dot gnu dot org 2005-01-24 9:12 ` stevenb at suse dot de 2005-01-25 11:35 ` rakdver at gcc dot gnu dot org 2005-01-30 14:41 ` pinskia at gcc dot gnu dot org 2005-02-02 8:56 ` rakdver at gcc dot gnu dot org 2005-02-13 0:11 ` pinskia at gcc dot gnu dot org 2005-04-18 9:33 ` rakdver at gcc dot gnu dot org 2005-05-01 8:08 ` cvs-commit at gcc dot gnu dot org 2005-05-01 13:49 ` pinskia at gcc dot gnu dot org 2005-05-01 13:49 ` pinskia at gcc dot gnu dot org 2005-07-08 18:19 ` pinskia at gcc dot gnu dot org
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