[LLVMdev] Question About Function Cloning
Tim Northover
t.p.northover at gmail.com
Fri Oct 25 10:07:18 PDT 2013
> Though I can create two global integers, could anyone please tell me
> how do I create a pointer to a global variable (not an array) in the
> IR? I know GetElementPtr can be used in case of array but what about
> I want a pointer to just an integer and call my function with it?
You should be able to just use the GlobalValue/GlobalVariable without
messing around with GetElementPtr (it'll already have type i32* or
whatever).
If you write "GV = Module->getOrCreateGlobal("whatever", MyType)" then
G will actually already have type "MyType *" as it were, and you
access the actual value by just loading and storing to GV. In your
case it should be directly usable in the CreateCall function.
Cheers.
Tim.
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