Can I create a constant from a symbol and use it as array initializer?

Question

Basically I want to create the data IR for following C code:

extern int myarr1[];
int myarr2 = {(int)&myarr1, 0, 0};

So I created an llvm::GlobalVariable object for myarr1. But llvm asserted out and said it can't be used as an initializer.

Wrong type in array element initializer

Is it possible to do this?

Answer 1

Got the answer:

llvm::Constant *cons = ConstantExpr::getCast(Instruction::PtrToInt, gvar_array_myarr1, IntegerType::get(mod->getContext(), 32));

Thanks!