diff --git a/llvm/include/llvm/CodeGen/MachineFunction.h b/llvm/include/llvm/CodeGen/MachineFunction.h
--- a/llvm/include/llvm/CodeGen/MachineFunction.h
+++ b/llvm/include/llvm/CodeGen/MachineFunction.h
@@ -326,6 +326,10 @@
   /// CodeView label annotations.
   std::vector<std::pair<MCSymbol *, MDNode *>> CodeViewAnnotations;
 
+  /// CodeView heapallocsites.
+  std::vector<std::tuple<MCSymbol *, MCSymbol *, const DIType *>>
+      CodeViewHeapAllocSites;
+
   bool CallsEHReturn = false;
   bool CallsUnwindInit = false;
   bool HasEHScopes = false;