[PATCH] D102615: [LoopDeletion] Break backedge if we can prove that the loop is exited on 1st iteration (try 3)

[Nikita Popov via Phabricator via llvm-commits]

nikic added a comment.

Compile-time with the reference invalidation issue fixed: https://llvm-compile-time-tracker.com/compare.php?from=b5c4fc0f232b6368bbd7cd8681a6931f2c30ad02&to=9bb9b602fd58e6fdd353cdfedec56980a40230c1&stat=instructions Impact is small and without outliers. I think this is as cheap as it gets :)


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  https://reviews.llvm.org/D102615/new/

https://reviews.llvm.org/D102615