[llvm] [memprof] Add Version2 of the indexed MemProf format (PR #89100)

[Snehasish Kumar via llvm-commits]

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@@ -374,6 +385,19 @@ IndexedMemProfRecord makeRecord(
   return MR;
 }
 
+IndexedMemProfRecord
+makeRecordV2(std::initializer_list<::llvm::memprof::CallStackId> AllocFrames,
+             std::initializer_list<::llvm::memprof::CallStackId> CallSiteFrames,
+             const MemInfoBlock &Block = MemInfoBlock()) {
+  llvm::memprof::IndexedMemProfRecord MR;
+  for (const auto &CSId : AllocFrames)
+    MR.AllocSites.emplace_back(::llvm::SmallVector<memprof::FrameId>(), CSId,
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snehasish wrote:

Why is the first argument empty? 

https://github.com/llvm/llvm-project/pull/89100