[llvm-dev] Writing Module Pass to modify arguments of a function

[Ammar Naqvi via llvm-dev]

Hi everyone,

I'm struggling on a module pass, my goal is to change the number of
arguments of a function found in the IR( the first function found).

My approach is using a modulepass ,creating a function with exactly one
argument then cloning the first found function using *CloneFunctionInto*;
then i replace uses of the old function using
*Old_func->replaceAllUsesWith(new_Func)*.

I have the end code figured however, I'm stuck at the beginning of the loop
:

*"for (Module::iterator F = M.begin(), e = M.end(); F != e; ++F) {*

* Function *Func=M.getAtIndex(F);"*

Now the problem is there is no such function as getAtIndex, so how do i
know the function i'm currently at so i can use it in the *Old_func*
variable?


If any of you can point me in the right direction, any help is greatly
appreciated, thank you!

Best,
-Ammar
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