llvm dev - Oct 2007 - [LLVMdev] how to get the address of operand

Hi,

I tried to write code transformation pass using LLVM.

But I couldn't find how to get the address of some operand (i.e.
'&'
operation in C).

If an integer type variable is generated by AllocaInst(), is there any
method to get the address of that variable?

 

Thanks,

Keoncheol

 

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Keoncheol Shin wrote:
> Hi,
> I tried to write code transformation pass using LLVM.
> But I couldn’t find how to get the address of some operand (i.e. ‘&’
operation in C).
> If an integer type variable is generated by AllocaInst(), is there any
method to get the address of that variable?
>   
The LLVM alloca instruction allocates memory on the stack.  The SSA
value that the alloca generates is a pointer to the integer on the stack.

-- John T.
> Thanks,
> Keoncheol
>
>
>

The value returned by the AllocaInst is a pointer to the stack address  
where the integer will be stored.

--Owen

On Oct 30, 2007, at 9:33 PM, Keoncheol Shin wrote:
> Hi,
> I tried to write code transformation pass using LLVM.
> But I couldn’t find how to get the address of some operand (i.e. ‘&’  
> operation in C).
> If an integer type variable is generated by AllocaInst(), is there  
> any method to get the address of that variable?
>
> Thanks,
> Keoncheol
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
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