This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/49365] New: 436.cactusADM performance regression
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 10 Jun 2011 14:43:47 +0000
- Subject: [Bug tree-optimization/49365] New: 436.cactusADM performance regression
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49365
Summary: 436.cactusADM performance regression
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: rguenth@gcc.gnu.org
Target: x86_64-*-*
For 436.cactusADM we see a 20% regression in performance around 2010 Nov 10th
here:
http://gcc.opensuse.org/SPEC/CFP/sb-barbella.suse.de-head-64-2006/436_cactusADM_big.png
Which is with -O3 -ffast-math -funroll-loops -fpeel-loops -march=barcelona