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[Bug target/27440] [4.0/4.1/4.2 regression] code quality regression due to ivopts
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Oct 2006 14:06:28 -0000
- Subject: [Bug target/27440] [4.0/4.1/4.2 regression] code quality regression due to ivopts
- References: <bug-27440-1008@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from rguenth at gcc dot gnu dot org 2006-10-10 14:06 -------
Confirmed (as in comment #1). With -Os instead of -O2 we even produce
.L3:
movl %ebx, -4(%edx)
incl %eax
.L2:
addl $4, %edx
cmpl %ecx, %eax
jb .L3
(because loop header copying is disabled there).
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rakdver at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Known to work| |3.4.6
Last reconfirmed|0000-00-00 00:00:00 |2006-10-10 14:06:28
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27440