[llvm-dev] How to pass the current function name at runtime without additional Global variables?

[Alberto Barbaro via llvm-dev]

Hi all,
I'm working on a little LLVM pass that should add a call to an external
function ( C++ project ) and pass as a parameter the name of the function
that is about to be called. I have a problem finding a nice way to pass the
current function name. In fact, so far,  Unfortunately the only solution
that I have found for passing the name is to create a global for each
function, store the name there and pass it as a parameter. I don't really
like this solution because the size of the final binary increases and the
overall approach feels not  optimal.

Assuming that I have a variable `I` which is the CallInst instruction, is
it possible to pass the function name at runtime to my external library in
a nice way? I thought about passing the address of the instruction and
casting it back to the CallInst instruction but I don't know how to do it.

Any suggestions?

Thanks
Alberto
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