[llvm] [AMDGPU][MISched] Allow memory ops of different base pointers to be clustered (PR #140674)

[Austin Kerbow via llvm-commits]

kerbowa wrote:

Unless someone objects or more testing is needed on the graphics side I think we should go ahead with this change since you haven't found any major perf-regression in initial testing. Cluster edges being "weak" means that the scheduler should always have the option to ignore them. In practice it will result in performance changes but since we have both an experimental and theoretical basis for the change I think that we should move forward with the patch.

https://github.com/llvm/llvm-project/pull/140674