[PATCH] D53245: Teach the DominatorTree fallback to recalculation when applying updates to speedup JT (PR37929)

[Jakub Kuderski via Phabricator via llvm-commits]

kuhar added a comment.

In https://reviews.llvm.org/D53245#1265454, @NutshellySima wrote:

> I have tested heuristic `k>n/α` with `α=10/40/65/70/75/80/100/300/1000` on `clang.bc`s. (But I didn't save them to a file :\) `10/1000` produce very bad result. ("10" is better than the current implementation). `300` produces better result than `1000`. `40/100` produce better ones than `10/300/1000`. And `65-80` don't make much difference and produce the best results among all αs I selected.


I'd be very interested to see the numbers for these constants.


https://reviews.llvm.org/D53245