[llvm] [VPlan] Implement printing VPIRMetadata. (PR #165825)

[via llvm-commits]

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@@ -1669,6 +1671,25 @@ void VPIRMetadata::intersect(const VPIRMetadata &Other) {
   Metadata = std::move(MetadataIntersection);
 }
 
+void VPIRMetadata::print(raw_ostream &O, const Module &M) const {
+  if (Metadata.empty())
+    return;
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ayalz wrote:

Empty checked anyhow.

https://github.com/llvm/llvm-project/pull/165825