[llvm] [AMDGPU] Optionally Use GCNRPTrackers during scheduling (PR #93090)

[Jeffrey Byrnes via llvm-commits]

jrbyrnes wrote:

Latest adds RP speculation by using the new interface in the GCNTrackers -- the review for this implementation, which has a more detailed git history for review purposes, is https://github.com/llvm/llvm-project/pull/93088 

Rebased for https://github.com/llvm/llvm-project/commit/825dbbbb94c985da4fd18da3e6e3baac05b11e23


https://github.com/llvm/llvm-project/pull/93090