[LLVMdev] How to recognize pointer variable & ordinary variable

Soumya_Prasad_Ukil ukil.soumya at gmail.com
Wed Jul 21 13:01:58 PDT 2010

Your last statement is correct. But still my stand does not change. I want
to differentiate ordinary local variable & pointer variables.
Let's have a program,
int a,b,c,*ptr;

I want to extract only the local variables. That's what my question was. I
think it is clear now. cast<PointerType>(A->getType()
> )->getElementType() is not working. I am also getting error with
> A->getAllocatedType().

On 22 July 2010 01:01, Duncan Sands <baldrick at free.fr> wrote:

> Hi Soumya_Prasad_Ukil,
> > How to recognize pointer variable & ordinary variable? I have tried with
> > "isa<PointerType>(V->getType())", but failed.
> I'm not sure what you are asking, but if you are asking whether an
> alloca instruction A represents local memory of pointer type, you
> can use A->getAllocatedType().  You can also use
> cast<PointerType>(A->getType())->getElementType().  The reason that
> an alloca instruction always has pointer type is that the instruction
> represents a pointer to the allocated memory.
> Ciao,
> Duncan.
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev

soumya prasad ukil
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20100722/19a28ba3/attachment.html>

More information about the llvm-dev mailing list