llvm dev - Feb 2010 - [LLVMdev] [Help] LLVM Runtime optimization and PGO reoptimization

Dear experts,

Could you please let me know where I can find more information on LLVM
runtime optimization and PGO repotimization ?
I found 3.5 Runtime Path Profiling & Reoptimization in the paper "LLVM:
A
compilation framework for lifelong program analysis and transformation".

I would like to get some more detailed information and apply it to our code.

I am not using llvm - frontend tools, so I would appreciate it if you could
let me know how to add those optimization featuers in the source code ( llvm
backend? ).

Thank you very much for your help in advance.
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