[llvm] [AMDGPU][True16][CodeGen] do not legalize t16 operand during user scan (PR #145450)

[Jay Foad via llvm-commits]

jayfoad wrote:

> [AMDGPU][True16][CodeGen] do not legalize t16 operand during user scan

But you are still calling `legalizeOperandsVALUt16` from `addUsersToMoveToVALUWorklist`, right? Can you explain why this is needed in the first place? It feels wrong, because that function is now doing more than just adding things to a work list. I guess it comes from #138734, but that review is hard to follow.

https://github.com/llvm/llvm-project/pull/145450