[LLVMdev] Optimization opportunity

Jeff Cohen jeffc at jolt-lang.org
Mon Aug 30 19:17:52 PDT 2004


On Sun, 29 Aug 2004 17:14:18 -0700
Reid Spencer <reid at x10sys.com> wrote:

> Jeff,
> 
> I tried the Benchmarks/Olden/power, Benchmarks/OptimizerEval, and
> Benchmarks/Ptrdist/ks tests. They all worked with your patches. I
> suggest you update your tree :)

I was using the 1.3 release, though I did pull the current code from CVS to verify no other changes were made to those files.  Unfortunately this machine is too underpowered to frequently rebuild LLVM.  It was collecting dust in the closet until I decided to put FreeBSD on it.  For the record it's a 64MB 300Mhz Pentium II and it takes 30-35 hours to build LLVM from scratch.  It's possible some of my test problems are due to LLVM generating X86 code that's not Pentium II-friendly.  If LLVM was Windows-friendly I'd build it on my much more powerful Windows system, but relying on cygwin means combining the worst of both Unix and Windows.  When FreeBSD 5 goes production in a few months I plan to put it on a more powerful system.

> The changes also survived all the Feature and Regression tests on Linux.
> So, your changes are committed. 
> 
> Thanks for the patches!

You're welcome!

> Reid.




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