This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug lto/44334] rnflow.f90 ~27% slower with -fwhole-program -flto after revision 159852
- From: "howarth at nitro dot med.uc.edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 23 Jan 2011 18:08:00 +0000
- Subject: [Bug lto/44334] rnflow.f90 ~27% slower with -fwhole-program -flto after revision 159852
- Auto-submitted: auto-generated
- References: <bug-44334-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44334
--- Comment #43 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-01-23 18:07:36 UTC ---
On x86_64-apple-darwin10 at r169137, the pb05 benchmarks compiled with
benchmark -O3 -ffast-math -funroll-loops -O3 -ffast-math -funroll-loops
%change
-flto -fwhole-program -finline-limit=2000 -flto
-fwhole-program
ac 8.81 7.30
-17.1
aermod 17.50 17.43
-0.4
air 5.57 5.57
0.0
capacita 33.35 31.86
-4.5
channel 1.89 1.76
-6.9
doduc 26.52 25.15
-5.2
fatigue 8.36 4.21
-49.6
gas_dyn 4.35 4.28
-1.6
induct 13.04 13.05
0.1
linpk 17.05 17.31
1.5
mdbx 11.26 11.26
0.0
nf 33.50 30.97
-7.6
protein 32.27 32.62
1.1
rnflow 24.84 24.16
-2.7
test_fpu 8.20 8.90
8.5
tfft 1.88 1.94
3.2
Geometric 11.11 10.42
-6.2
Mean