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[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 03:37:06 +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
Jack Howarth <howarth at nitro dot med.uc.edu> changed:
What |Removed |Added
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CC| |howarth at nitro dot
| |med.uc.edu
--- Comment #27 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-01-23 03:36:02 UTC ---
On x86_64-apple-darwin10 at r169137, the pb05 benchmarks compiled with
benchmark -O3 -ffast-math -O3 -ffast-math -funroll-loops %change
-funroll-loops -flto -fwhole-program
ac 8.81 8.81 0.0
aermod 17.30 17.50 1.2
air 5.62 5.57 -0.9
capacita 32.77 33.35 1.8
channel 1.89 1.89 0.0
doduc 26.58 26.52 -0.2
fatigue 8.37 8.36 -0.1
gas_dyn 4.36 4.35 -0.2
induct 13.05 13.04 -0.1
linpk 17.15 17.05 -0.6
mdbx 11.25 11.26 0.1
nf 32.14 33.50 4.2
protein 32.50 32.27 -0.7
rnflow 24.11 24.84 3.0
test_fpu 8.22 8.20 -0.2
tfft 1.89 1.88 -0.5
Geometric 11.07 11.11 0.4
Mean