[llvm-branch-commits] [llvm] release/18.x: [X86] Add missing subvector_subreg_lowering for BF16 (#83720) (PR #84491)

[Phoebe Wang via llvm-branch-commits]

phoebewang wrote:

Please review this patch instead https://github.com/llvm/llvm-project/pull/83834

https://github.com/llvm/llvm-project/pull/84491