[llvm] [VPlan] Manage noalias/alias_scope metadata in VPlan. (NFC) (PR #136450)

[via llvm-commits]

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@@ -2459,7 +2465,7 @@ class VPReductionEVLRecipe : public VPReductionRecipe {
 /// copies of the original scalar type, one per lane, instead of producing a
 /// single copy of widened type for all lanes. If the instruction is known to be
 /// uniform only one copy, per lane zero, will be generated.
-class VPReplicateRecipe : public VPRecipeWithIRFlags {
+class VPReplicateRecipe : public VPRecipeWithIRFlags, public VPIRMetadata {
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ayalz wrote:

Commit message should mention that this patch also affects how ReplicateRecipe handle metadata. Does it fix the possibly incorrect behavior mentioned above? A test may be helpful.

https://github.com/llvm/llvm-project/pull/136450