[LLVMdev] Help with using LLVM to re-compile hot functions at run-time

[Revital1 Eres]

Hello,

I am new to LLVM and a I appreciate your help with the following:

I want to run the LLVM IR through virtual machine (LLVM interpreter?) and 
jit
compile the hot functions (using MCJIT).

This task will require amongst other identifying the hot functions and 
having a
code cache that should be patched with the native code of the functions 
after
they are jitted.

I've read so far about MCJIT and lli however I have not seen that the LLVM 

interpreter can be used as a VM the way I was looking for; meaning
execute the code one instruction at a time; have a profiling mode to 
identify hot functions and call jit to compile the hot functions.

I appreciate any advice/starting points for this project.

Thanks,
Revital
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