[llvm] [LoopUnroll] Allow unrolling of multi-exit loops with small trip count (PR #224325)

[Marek Sedláček via llvm-commits]

mark-sed wrote:

Here are compile time impacts: https://llvm-compile-time-tracker.com/compare.php?from=07fbbac878025ecf8f3b25f28ec38c826e6f4891&to=50e3a03cd67f6b4ff194f54faa07241ca4e04c49&stat=instructions%3Au

I can't see any big compile time impacts of this change.

https://github.com/llvm/llvm-project/pull/224325