[clang] [llvm] clang/AMDGPU: Emit atomicrmw from ds_fadd builtins (PR #95395)

[Yaxun Liu via llvm-commits]

yxsamliu wrote:

These builtins generate atomic instructions in IR but the builtin function name does not have atomic. Is that a concern? Should they be renamed with atomic in name?

https://github.com/llvm/llvm-project/pull/95395