[LLVMdev] Grabbing Result of an Instruction.

[Manish Gupta]

Thanks Michael.
I wish to get Type of %1 i.e. result of instruction. Let me try out your
suggestion. But It is still not clear to me how will dyn_cast will help
here. I already have pointer to this particular instruction.


On Mon, Aug 1, 2011 at 5:34 PM, Michael Ilseman <michael at lunarg.com> wrote:

> In LLVM, %1 is the instruction itself. This is because LLVM IR is in
> SSA, so the "=" really means equality. If you look at a use of %1,
> e.g. as an operand to another instruction, you'll see that it's the
> instruction itself that is there (i.e. you can dyn_cast<Instruction>
> it).
>
> On Mon, Aug 1, 2011 at 5:27 PM, Manish Gupta <manishg at cs.ucsd.edu> wrote:
> > What member function to use if I wish to operate on results of an
> > instruction.
> > eg.
> > Instruction  %1 = getelementptr inbounds [10 x i32]* %a, i32 0, i32 %0
> > I->getOperand will give me the operands.
> > How should I get hold of %1?
> > Thanks,
> > Manish
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> >
>
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