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Chandler Carruth
2aaad36203
Summary: I noticed this issue because we didn't put the primary cloned loop into the `NonChildClonedLoops` vector and so never iterated on it. Once I fixed that, it made it clear why I had to do a really complicated and unnecesasry dance when updating the loops to remain in canonical form -- I was unwittingly working around the fact that the primary cloned loop wasn't in the expected list of cloned loops. Doh! Now that we include it in this vector, we don't need to return it and we can consolidate the update logic as we correctly have a single place where it can be handled. I've just added a test for the iteration order aspect as every time I changed the update logic partially or incorrectly here, an existing test failed and caught it so that seems well covered (which is also evidenced by the extensive working around of this missing update). Reviewers: asbirlea, sanjoy Subscribers: mcrosier, hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D47647 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@333811 91177308-0d34-0410-b5e6-96231b3b80d8
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