[LLVMdev] get the address in memory where an instruction lives

Eirini Psallida eirini.psallida at gmail.com
Tue Sep 24 08:53:34 PDT 2013

On 24.09.2013, at 17:38, Eirini Psallida <eirini.psallida at gmail.com
<http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev>> wrote:

>* Hi, *>* i want to get the address in memory of an instruction pointer and use it as a key in my tables.*>* i iterate over the instructions in LLVM IR like this:*>* for (Module::iterator fi = Mod->begin(), fi_end = Mod->end(); fi != fi_end; ++fi) {*>*     for (inst_iterator I = inst_begin(fi), E = inst_end(fi); I != E; ++I) { *>*             Instruction *ii = dyn_cast<Instruction>(&*I);*>*             errs() << &ii << "\n";*>*    }*>* *>* but i get the same address for every instruction, eg 0xbfc979fc*>* Why is this happening and how can i get the rigth address?*
> You're printing the address of a variable on the stack. Try removing the '&' before 'ii'.

But then i will have the address of where 'ii' points to. This might
not be unique

if other instruction pointers point to the same instruction. I want
the address of
the instruction pointer that's why i used '&ii'.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130924/ad1d13d0/attachment.html>

More information about the llvm-dev mailing list