[PATCH] D105700: [LoopSimplify] Convert loop with multiple latches to nested loop using dominator tree

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

The transforms here is clearly correct... the part I'm not sure about is whether it's profitable in general.  I'm particularly worried about cases where we make PHI nodes in the outer loop more difficult to analyze.  Have you don't any experiments to try to determine the performance impact?


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https://reviews.llvm.org/D105700