[llvm-branch-commits] [llvm] [AMDGPU] Fold 24 bit multiply with zero low bits (PR #224537)

[Matt Arsenault via llvm-branch-commits]

https://github.com/arsenm requested changes to this pull request.

This should not introduce a new recursive value tracking call, and if it's not achievable without introducing one, it's not worth the cost 

https://github.com/llvm/llvm-project/pull/224537