[LLVMdev] BasicBlock Cloning

[tarun agrawal]

Thank you john that has really worked for me

On Wed, May 4, 2011 at 7:02 AM, John Criswell <criswell at illinois.edu> wrote:

>  On 5/3/11 4:14 PM, tarun agrawal wrote:
>
> Hi
>
> I have clone a basic block using CloneBasicBlock function but it does not
> clone the predecessor with it. I am not able to figure out, how to set the
> predecessor of the cloned basic block.
>
>
> LLVM's CFG is explicitly maintained by the terminator instructions within
> each basic block.  In order to change the CFG, you have to change the
> terminator instructions.
>
> To make BasicBlock B a successor of BasicBlock A, you have to modify or
> replace BasicBlock A's terminator instruction to branch to BasicBlock B.
>
> -- John T.
>
>
> Tarun
>
>
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>
>
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