New Freecell Solver gcc-4.5.0 vs. LLVM+clang Benchmark

[Shlomi Fish]

Hi all,

today (a month after this message:
http://www.mail-archive.com/linux-il@cs.huji.ac.il/msg58720.html ) I've 
rebuilt LLVM+clang again and benchmarked Freecell Solver trunk after being 
compiled with it. It took it 103.167913198471 seconds to solve the Microsoft 
32K boards - instead of 105 seconds in the older benchmark, while the 
performance of Freecell Solver has improved since then.

On the other hand, with gcc-4.5.0 with "-flto" and "-fwhole-program" Freecell 
Solver ran at 85.1303749084473 seconds. 

I admit that I ran the gcc benchmark with a good renice and only in the 
virtual console, while running the LLVM/clang benchmark without a renice and 
in KDE and Compiz, but it still cannot explain the dramatic difference.

I'll keep an eye on clang, but so far it seems that gcc still yields the more 
performing code.

Regards,

	Shlomi Fish

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