[llvm-branch-commits] [llvm] [AMDGPU] Clean up check prefixes and regenerate checklines for some tests that were out of date (PR #209889)

[Shilei Tian via llvm-branch-commits]

shiltian wrote:

Have we got the access to use GitHub's own stack CLI for LLVM project?

https://github.com/llvm/llvm-project/pull/209889