Hello,
I am trying to handle some overloaded functions in the LLVM IR.
I have a number of functions named "task" in the source code,
differing in the number of parameters. And there is a call, let's say:
task (a, b).
I get the file.ll equivalent and I want to replace the original call task (a,b)
with a call to one of the other functions, task(a,b,c).
The problem is that due to name mangling I cannot find the second function,
accepting 3 parameters. I can build the correct FuntionType, but I cannot use
the M->getOrInsertFunction, since I cannot get the correct name of the
function.
Do you have any suggestions on how can I:
(i) either retrieve the function name
(ii) directly retrieve the function I need, based on its FunctionTy and knowing
that the name has a common substring with the other function (or based on the
original name it has in the source code). To be more precise, originally, the
function is called task and it is overloaded. Therefore, in the LLVM IR one of
them becomes @_Z6_task_PFvPvS_S_S_ES1_S_S_S_S_ and the other one
@_Z6_task_PFvPvS_S_S_ES_S_S_S_ .
And I want to replace call @_Z6_task_PFvPvS_S_S_ES1_S_S_S_S_ (%a, %b)
with
call @_Z6_task_PFvPvS_S_S_ES_S_S_S_(%a, %b, %c)
Thank you,
Alexandra
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