[llvm] [AMDGPU]Optimize SGPR spills (PR #93668)

[Yaxun Liu via llvm-commits]

yxsamliu wrote:

opened issue https://github.com/llvm/llvm-project/issues/96353 for better tracking the issue. Let's continue further discussion there.

https://github.com/llvm/llvm-project/pull/93668