[llvm] [LLVM][SVE] Extend dup(extract_elt(v,i)) isel patterns to cover all combinations. (PR #115189)

[Ricardo Jesus via llvm-commits]

https://github.com/rj-jesus commented:

Hi @paulwalker-arm, many thanks for the patch! I think it looks great overall, but I'm not convinced the unpacked cases are correct (please see my comment for `dup_extract_nxv4f16_nxv2f16`). Could you please have a look and let me know if I'm missing anything? Thanks!

https://github.com/llvm/llvm-project/pull/115189