llvm dev - Sep 2013 - [LLVMdev] Distinguishing Pointer Variable and Ordinary Variable

Sorry I have actually edited the post.

I did check its type by using
isa<PointerType>(cast<AllocaInst>(instr->getOperand(1))->getAllocatedType())
but it is only detecting  i32** %b on line 8 of IR as a pointer type.

Whereas I also want to detect the  i32* %1  on line 11 of IR as a pointer
type. So how can I do this??



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Hi,

On 1 September 2013 15:47, Abhinash Jain <omnia at mailinator.com>
wrote:
> Sorry I have actually edited the post.
This is primarily an e-mail list; the vast majority of us won't see
any edits (on some web mirror?).
> I did check its type by using
>
isa<PointerType>(cast<AllocaInst>(instr->getOperand(1))->getAllocatedType())
> but it is only detecting  i32** %b on line 8 of IR as a pointer type.
Not all pointers will come (directly or indirectly) from an
AllocaInst. You might just want
isa<PointerType>(instr->getOperand(1)->getType()), though of course
that'll be true for any memory operand of a store instruction.

Tim.

> Not all pointers will come (directly or indirectly) from an
> AllocaInst. You might just want
> isa<PointerType>(instr->getOperand(1)->getType()), though of
course
> that'll be true for any memory operand of a store instruction.
isa<PointerType>(instr->getOperand(0)->getType()) will check if a
pointer
is being stored.

Ciao, Duncan.