[LLVMdev] dragonegg svn benchmarks

[Jack Howarth]

     The Polyhedron 2005 benchmark results for dragonegg svn at r141492
using FSF gcc 4.6.2svn measured on x86_64-apple-darwin11 are listed below.
The benchmarks used the optimizaton flags...

 -msse4 -ffast-math -funroll-loops -O3

in all cases. The use of -fplugin-arg-dragonegg-enable-gcc-optzns to allow
for autovectorization from the FSF gcc front-end only produces a single run-time
regression, fatigue, which is PR10892. 

Run time

Benchmark    gfortran  dragonegg dragonegg+optnz
------------------------------------------------
ac             8.81      10.83       8.89
aermod        18.21      16.77      15.79
air            5.51       7.12       6.66
capacita      32.59      42.30      36.53
channel        1.84       2.52       1.95
doduc         26.78      30.24      27.95
fatigue        8.49       9.25       0.01 *
gas_dyn        4.27      11.68       4.44
induct        13.66      24.02      12.19
linpk         15.24      15.56      15.77
mdbx          11.21      12.00      11.75
nf            28.01      28.78      29.27
protein       32.64      38.29      36.43
rnflow        24.01      31.96      26.46
test_fpu       8.03      11.49       9.35
tfft           1.87       1.92       1.93

Compile time

Benchmark    gfortran  dragonegg dragonegg+optnz
------------------------------------------------
ac             1.19       0.28       1.52
aermod        37.94      20.05      26.46
air            2.18       1.02       1.46
capacita       1.75       0.50       0.92
channel        0.60       0.22       0.40
doduc          5.25       1.57       3.07
fatigue        1.74       0.89       1.22
gas_dyn        2.97       0.66       1.19
induct         3.91       1.73       2.89
linpk          0.77       0.19       0.45
mdbx           1.81       0.61       1.13
nf             1.80       0.33       0.72
protein        3.97       0.95       1.76
rnflow         5.43       1.26       2.62
test_fpu       4.32       0.96       2.06
tfft           0.54       0.18       0.31