[PATCH] D113345: [WIP][BPI] `calcEstimatedHeuristics()`: symmetrically with loop exiting edge, scale loop enter edge weight by trip count

[Evgeniy via Phabricator via llvm-commits]

ebrevnov added a comment.

It seems that the new heuristic is applied not only to loops in rotated form. For example "test_cold_loop" or "test13".
In general we should decrease probability to take particular back edge proportionally to number of added exits. For example if number of exits equal to number of predicted iterations then each particular exit should be 50/50. But this is not supported yet anyway..


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https://reviews.llvm.org/D113345