[clang] [llvm] [AMDGPU] Add intrinsics for v_[pk]_add_{min|max}_* instructions (PR #164731)

[Matt Arsenault via llvm-commits]

arsenm wrote:

> Pattern is trivial, but practically impossible to achieve from a source code.

No, the saturating add pattern is already matched and has clang builtins 



https://github.com/llvm/llvm-project/pull/164731