[PATCH] D21237: LoopRotation: remove iterative calls to rotateLoops

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llvm-commits added a comment.

> Right, my idea was to make loop-rotation more generic, thus enabling it on more complicated loops. It has some interesting corner cases though: for instance you can end up with several nested loops after rotating a single loop, but that's details, which we'll figure out in the process:)


I discussed about this with Aditya, and we think that a better idea is
to make jump-threading handle the loop rotation: there is no reason to
have rotation as a separate pass when jump-threading is already
(supposed to) do the same transform.

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http://reviews.llvm.org/D21237