[patch] shark llvm 2.6 JIT improved optimization level

[Andrew Haley]

Xerxes Rånby wrote:
> The LLVM 2.6 JIT api have changed in order to give developers more
> fine-grained control of the optimization level of the JIT.
> http://lists.cs.uiuc.edu/pipermail/llvmdev/2009-April/021990.html
> 
> The attached patch enables Shark to compile against the current llvm 2.6
> svn trunk.
> ... and makes the shark a bit more aggressive.
> 
> Suggestions are welcome.

OK, I'll bite.  :-)

This option should be accessible from the command line.

Andrew.