[llvm] [VPlan] Implement interleaving as VPlan-to-VPlan transform. (PR #95842)

[via llvm-commits]

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@@ -184,7 +184,7 @@ class VPValue {
   /// Returns true if the VPValue is defined outside any vector regions, i.e. it
   /// is a live-in value.
   /// TODO: Also handle recipes defined in pre-header blocks.
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ayalz wrote:

This TODO is now taken care of? Can be pushed separately, or tested only w/ this patch? Can be pushed independently?

https://github.com/llvm/llvm-project/pull/95842