[clang-tools-extra] [llvm] [clang] [AMDGPU][GFX12] Add Atomic cond_sub_u32 (PR #76224)

[Jay Foad via cfe-commits]

jayfoad wrote:

> Adding support in atomicrmw. This will require to add new operation to aromicrmw "cond_sub"

Yes, and we have (Matt has) done this in the past, but it will require a wider consensus. I think it's fine to add AMDGPU intrinsics for this in the mean time.

https://github.com/llvm/llvm-project/pull/76224