Sun Ziping 242961f23b [llvm][fix-irreducible] ensure that loop subtree under child is correctly reconnected to new loop ...

The modified function was incorrectly (not unnecessarily) ignoring grandchild
loops, and this change fixes the bug. In particular, this fixes the handling of
the loop { inner, body }. The TODO in the same function is talking about the b1
self loop, which may be "unnecessarily" lost, but that is a different issue.

2022-05-18 10:45:52 +01:00

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