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Re: Comparison of GCC-4.9 and LLVM-3.4 performance on SPECInt2000 for x86-64 and ARM

On 24/06/14 15:11, Vladimir Makarov wrote:
   A few people asked me about new performance comparison of latest GCC
and LLVM.  So I've finished it and put it on my site

   The comparison is achievable from 2014 link and links under it in
the left frame.

   These pages are also achievable as -- what I
compare, my motivation, major results, and my conclusions. -- The
results of comparison on x86-64 SPECInt2000 -- The
results of comparison on ARM SPECInt2000

Interesting ...

On ARM, I note that by default you are generating code for fpu=vfpv3-d16 and armv7-a. Of interest is the fact that you aren't using the Neon unit at all if you configure the compiler with --with-fpu=vfpv3-d16

Did you add any other architecture specific options to your SPEC2k runs ?


   If you need exact numbers they can be found in the tables.

   If you have any comments and proposals, please feel free to write
me.  I try to take them into account next year.

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