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From: "steven at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/18316] Missed IV optimization
Date: Thu, 08 Nov 2012 23:00:00 -0000 [thread overview]
Message-ID: <bug-18316-4-nW9ZDPueWq@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-18316-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
Steven Bosscher <steven at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2010-02-12 21:46:26 |2012-11-08 21:46:26
--- Comment #15 from Steven Bosscher <steven at gcc dot gnu.org> 2012-11-08 22:59:49 UTC ---
Still a missed optimization as of trunk r193340:
strength_test2:
movl (%rdi), %ecx
movl %ecx, %eax
.p2align 4,,10
.p2align 3
.L3:
movslq 8(%rdi), %rdx
movl $2, (%rdi,%rdx,4)
movl %eax, %edx
addl %ecx, %eax
cmpl 4(%rdi), %edx
jl .L3
rep ret
strength_result2:
movl (%rdi), %ecx
xorl %eax, %eax
.p2align 4,,10
.p2align 3
.L7:
movslq 8(%rdi), %rdx
addl %ecx, %eax
movl $2, (%rdi,%rdx,4)
cmpl 4(%rdi), %eax
jl .L7
rep ret
next parent reply other threads:[~2012-11-08 23:00 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-18316-4@http.gcc.gnu.org/bugzilla/>
2012-11-08 23:00 ` steven at gcc dot gnu.org [this message]
[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
2010-02-12 21:46 ` steven at gcc dot gnu dot 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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