[llvm] [MISched] Extend overridePostRASchedPolicy to support per-function scheduling direction (PR #149297)

[Min-Yih Hsu via llvm-commits]

mshockwave wrote:

> Does overridePostRASchedPolicy really need direct access to the attribute? I'd expect the scheduler pass to directly query the attribute to select the mode

I guess you meant making this attribute a generic one so that MachineScheduler would be the one selecting the policy instead of the subtarget?

https://github.com/llvm/llvm-project/pull/149297