[PATCH] D30633: [BPI] Reduce the probability of unreachable edge to minimal value greater than 0

[Serguei Katkov via Phabricator via llvm-commits]

skatkov added a comment.

Actually I tend to think that we do not need zero probability. Instead I will update loop rotation to prohibit the case when rotation breaks the hot path. In this case for corner case we just will not take the best case but still will not do worse.


https://reviews.llvm.org/D30633