[llvm-branch-commits] [llvm] AMDGPU: Fold bitcasts into readfirstlane, readlane, and permlane64 (PR #128494)

[Pravin Jagtap via llvm-branch-commits]

https://github.com/pravinjagtap approved this pull request.

LGTM, I think, its worth adding few neg test points for div values

https://github.com/llvm/llvm-project/pull/128494