[llvm-branch-commits] [clang] [llvm] AMDGPU: Add subtarget feature for controllable xnack modes (PR #204523)

[Matt Arsenault via llvm-branch-commits]

arsenm wrote:

> Should we show a warning saying that +/-xnack is ignored??

That is printed now, but I will be imminently removing that as well. It really shouldn't be directly spamming stderr from a constructor 

https://github.com/llvm/llvm-project/pull/204523