[LLVMdev] x86_64-apple-darwin Polyhedron 2005 benchmarks

[Chris Lattner]

On Aug 23, 2009, at 5:21 PM, Jack Howarth wrote:

> The current llvm/llvm-gcc-4.2 2.6 branch passes all of the
> Polyhedron 2005 benchmarks built with its gfortran. The
> results compare as follows...

Very interesting Jack!  Do you have any idea why llvm-gcc is slower on  
channel at -m64 than -m32?  Can you attach some shark traces?

-Chris

>
> Compile Command : gfortran -ffast-math -funroll-loops -msse3 -O3  
> %n.f90 -o %n
>
> benchmark         gcc-4.2.4        llvm-gcc-svn   llvm-gcc-2.6    
> llvm-gcc-2.6
>                  at -m32          20081031 -m32  at -m32        at - 
> m64
>
> ac                18.30            19.33          19.99          15.78
> aermod            30.90            22.02          23.52          20.84
> air               10.85            14.30          11.25          10.96
> capacita          63.58            63.65          62.15          54.38
> channel            6.29             4.68           4.00           4.29
> doduc             47.94            50.60          47.42          43.88
> fatigue           16.00            17.14          14.90          12.18
> gas_dyn           22.91            29.24          23.73          23.00
> induct            68.95            68.63          64.91          60.53
> linpk             31.06            30.77          26.67          26.60
> mdbx              14.94            18.30          17.62          15.44
> nf                33.98            35.01          35.41          38.72
> protein           51.03            55.97          57.65          48.73
> rnflow            43.20            47.68          40.09          39.75
> test_fpu          15.05            16.57          16.02          14.23
> tfft               2.94             2.87           2.86           2.87
>
> These benchmarks were all collected on a 2.33GHz MacBook Pro with  
> 3Gb of ram.
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