[llvm] [AMDGPU][True16][CodeGen] lower flat_d16_saddr_t16 to saddr inst (PR #166603)

[Joe Nash via llvm-commits]

https://github.com/Sisyph commented:

Why is it only affecting gfx1250? I would expect we could do the same on gfx11 or gfx12.

https://github.com/llvm/llvm-project/pull/166603