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

[Florian Hahn via llvm-commits]

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@@ -1221,11 +1222,19 @@ struct VPIRPhi : public VPIRInstruction {
 class VPIRMetadata {
   SmallVector<std::pair<unsigned, MDNode *>> Metadata;
 
-protected:
+public:
   VPIRMetadata() {}
+
+  /// Adds metatadata that can be preserved from the original instruction
+  /// \p I.
   VPIRMetadata(Instruction &I) { getMetadataToPropagate(&I, Metadata); }
 
-public:
+  /// Adds metatadata that can be preserved from the original instruction
+  /// \p I and noalias metadata guaranteed by runtime checks using \p LVer.
+  VPIRMetadata(Instruction &I, LoopVersioning *LVer);
+
+  VPIRMetadata(const VPIRMetadata &Other) : Metadata(Other.Metadata) {}
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fhahn wrote:

Added thanks

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