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by roblabla 2044 days ago
The rust compiler team now tracks LLVM performance, see [0]. They are able to spot regressions as soon as they get merged, and petition to get the change reverted or performance fixed when the impact is large. This has been fairly successful so far, but obviously needs sustained efforts if we are to ever dream of ever getting halfway decent compilation times.

[0]: https://nikic.github.io/2020/05/10/Make-LLVM-fast-again.html