[llvm] [LV] Fix incorrect address for interleave loads with dead members (PR #203555)

[Mel Chen via llvm-commits]

Mel-Chen wrote:

> I realised that this will actually have a codegen regression compared to 22.x because we'll no longer form the VPInterleaveRecipes. I've tried out another approach in #208415 that avoids bailing when there's a missing recipe

Agreed, keeping the same code gen is probably a good idea. If using strided loads is actually better, we could also break down the Interleave recipe back into strided loads inside convertToStridedAccesses.

https://github.com/llvm/llvm-project/pull/203555