[llvm] AMDGPU/GlobalISel: Implement RegBankLegalizeRules for amdgcn_log, amdgcn_rcp, and amdgcn_sqrt (PR #195099)

[via llvm-commits]

anjenner wrote:

The tests that Claude is requesting were already added with https://github.com/llvm/llvm-project/pull/195099/changes/21d5a93bda8fb8384024362742eca6e5e2406fd4 - looks like it's not picking up the latest sources for some reason? There was also an text failure caused by merging in the rsq changes without updating the test checks - that is fixed with the latest push.

https://github.com/llvm/llvm-project/pull/195099