This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug lto/57290] New: [4.9 Regression] After r198333 the aermod runtime is ~10% slower when compiled with -fprotect-parens and -flto
- From: "dominiq at lps dot ens.fr" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 15 May 2013 14:02:00 +0000
- Subject: [Bug lto/57290] New: [4.9 Regression] After r198333 the aermod runtime is ~10% slower when compiled with -fprotect-parens and -flto
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57290
Bug ID: 57290
Summary: [4.9 Regression] After r198333 the aermod runtime is
~10% slower when compiled with -fprotect-parens and
-flto
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: dominiq at lps dot ens.fr
CC: rguenth at gcc dot gnu.org
After r198333, the aermod runtime is more than 10% slower when compiled with
-fprotect-parens and -flto:
(1) -Ofast -funroll-loops
(2) -fprotect-parens -Ofast -funroll-loops
(3) -Ofast -funroll-loops -fwhole-program -flto
(4) -fprotect-parens -Ofast -funroll-loops -fwhole-program
(5) -fprotect-parens -Ofast -funroll-loops -fwhole-program -flto
revision: 198332 198333
(1) 18.11 17.74
(2) 17.70 17.61
(3) 17.66 18.34
(4) 18.47 18.49
(5) 17.80 20.70