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[Bug tree-optimization/18707] [4.0 Regression] Performance regression at -O2 with gzip
- From: "cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 16 Dec 2004 20:01:44 -0000
- Subject: [Bug tree-optimization/18707] [4.0 Regression] Performance regression at -O2 with gzip
- References: <20041128203034.18707.ebotcazou@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-12-16 20:01 -------
Subject: Bug 18707
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: ebotcazou@gcc.gnu.org 2004-12-16 20:01:26
Modified files:
gcc : ChangeLog cfgloopmanip.c
Log message:
PR tree-optimization/18707
* cfgloopmanip.c (create_preheader): Move the preheader
only if the latch was falling through to the header.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.6860&r2=2.6861
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cfgloopmanip.c.diff?cvsroot=gcc&r1=1.39&r2=1.40
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18707