[LLVMdev] LoopInfo Question

[Chris Lattner]

On Mon, 10 Dec 2007, Bill Wendling wrote:
> If I do a loop over the basic blocks in a LoopInfo object, is it going
> to loop over the basic blocks of the loop AND the subloops of the loop
> or just the BBs of the loop itself?

A loop's block list include blocks that are part of subloops.  The 
canonical way to determine if a block is in "this loop and not a child" 
is:

if (LI->getLoopFor(BB) == ThisLoop)

If BB is part of a child loop, getLoopFor will return it so the compare 
will fail.

-Chris

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