[llvm-branch-commits] [llvm] [AMDGPU][Fake16] Support OPSEL for `v_cvt_f16_f32` and `v_cvt_f32_f16` (PR #139185)

[Shilei Tian via llvm-branch-commits]

shiltian wrote:

This is still a work in progress, as three test cases are currently crashing. I'd like to get some early feedback on whether this is the right approach to support `opsel` for fake16.

https://github.com/llvm/llvm-project/pull/139185