[llvm] [MISched] De-prioritize RegCritical when register pressure is critica… (PR #218493)

[Nazar Mokrynskyi via llvm-commits]

https://github.com/nazar-pc commented:

> Users targeting known high-pressure workloads can enable it

Large projects have code bases that are mixing various situations. I'm not sure many users will be tweaking such low-level parameters to get an improvement in one workload at the cost of everything else.

Ideally, there change would benefit the target workload and neutral otherwise.

https://github.com/llvm/llvm-project/pull/218493