[llvm] [AMDGPU] Give some of the VI V_PK_* instructions a subtarget predicate. (PR #70334)

[Stanislav Mekhanoshin via llvm-commits]

https://github.com/rampitec approved this pull request.

Thanks. I have seen similar problems with other instructions, very tricky to detect.

https://github.com/llvm/llvm-project/pull/70334