[llvm] [ScheduleDAG] Allow disabling the SchedModel / Itineraries during Scheduling (PR #138057)

[Jeffrey Byrnes via llvm-commits]

jrbyrnes wrote:

> I'd be much more in favour of getting rid of these kludge flags once and for all tbh.

Presently I find that they are a good way to experiment with latency agnostic scheduling. But I don't disagree with you: I _think_ the original intent of these flags was to prefer Itins over SchedModel or vice-versa -- for that purpose, I agree that we shouldn't have these flags. 

https://github.com/llvm/llvm-project/pull/138057