diff --git a/llvm/include/llvm/ProfileData/MemProfReader.h b/llvm/include/llvm/ProfileData/MemProfReader.h
index de2167f97b0dc..ade0c3901562d 100644
--- a/llvm/include/llvm/ProfileData/MemProfReader.h
+++ b/llvm/include/llvm/ProfileData/MemProfReader.h
@@ -120,6 +120,8 @@ class MemProfReader {
 
   // Initialize the MemProfReader with the frame mappings, call stack mappings,
   // and profile contents.
+  LLVM_DEPRECATED("Construct MemProfReader with IndexedMemProfData",
+                  "MemProfReader")
   MemProfReader(
       llvm::DenseMap<FrameId, Frame> FrameIdMap,
       llvm::DenseMap<CallStackId, llvm::SmallVector<FrameId>> CSIdMap,
@@ -127,6 +129,15 @@ class MemProfReader {
       : IdToFrame(std::move(FrameIdMap)), CSIdToCallStack(std::move(CSIdMap)),
         FunctionProfileData(std::move(ProfData)) {}
 
+  // Initialize the MemProfReader with the given MemProf profile.
+  MemProfReader(IndexedMemProfData MemProfData) {
+    for (const auto &[FrameId, F] : MemProfData.Frames)
+      IdToFrame.try_emplace(FrameId, F);
+    for (const auto &[CSId, CS] : MemProfData.CallStacks)
+      CSIdToCallStack.try_emplace(CSId, CS);
+    FunctionProfileData = std::move(MemProfData.Records);
+  }
+
 protected:
   // A helper method to extract the frame from the IdToFrame map.
   const Frame &idToFrame(const FrameId Id) const {
diff --git a/llvm/unittests/ProfileData/MemProfTest.cpp b/llvm/unittests/ProfileData/MemProfTest.cpp
index 5097dbdd6c391..e5d41db06dcc0 100644
--- a/llvm/unittests/ProfileData/MemProfTest.cpp
+++ b/llvm/unittests/ProfileData/MemProfTest.cpp
@@ -490,20 +490,18 @@ TEST(MemProf, BaseMemProfReader) {
 }
 
 TEST(MemProf, BaseMemProfReaderWithCSIdMap) {
-  llvm::DenseMap<FrameId, Frame> FrameIdMap;
+  llvm::memprof::IndexedMemProfData MemProfData;
   Frame F1(/*Hash=*/IndexedMemProfRecord::getGUID("foo"), /*LineOffset=*/20,
            /*Column=*/5, /*IsInlineFrame=*/true);
   Frame F2(/*Hash=*/IndexedMemProfRecord::getGUID("bar"), /*LineOffset=*/10,
            /*Column=*/2, /*IsInlineFrame=*/false);
-  FrameIdMap.insert({F1.hash(), F1});
-  FrameIdMap.insert({F2.hash(), F2});
+  MemProfData.Frames.insert({F1.hash(), F1});
+  MemProfData.Frames.insert({F2.hash(), F2});
 
-  llvm::DenseMap<CallStackId, llvm::SmallVector<FrameId>> CSIdMap;
   llvm::SmallVector<FrameId> CallStack = {F1.hash(), F2.hash()};
   CallStackId CSId = llvm::memprof::hashCallStack(CallStack);
-  CSIdMap.insert({CSId, CallStack});
+  MemProfData.CallStacks.insert({CSId, CallStack});
 
-  llvm::MapVector<llvm::GlobalValue::GUID, IndexedMemProfRecord> ProfData;
   IndexedMemProfRecord FakeRecord;
   MemInfoBlock Block;
   Block.AllocCount = 1U, Block.TotalAccessDensity = 4,
@@ -511,9 +509,9 @@ TEST(MemProf, BaseMemProfReaderWithCSIdMap) {
   FakeRecord.AllocSites.emplace_back(
       /*CSId=*/llvm::memprof::hashCallStack(CallStack),
       /*MB=*/Block);
-  ProfData.insert({F1.hash(), FakeRecord});
+  MemProfData.Records.insert({F1.hash(), FakeRecord});
 
-  MemProfReader Reader(FrameIdMap, CSIdMap, ProfData);
+  MemProfReader Reader(MemProfData);
 
   llvm::SmallVector<MemProfRecord, 1> Records;
   for (const auto &KeyRecordPair : Reader) {