[llvm] [SampleFDO] Stale profile renaming matching (PR #92151)

[via llvm-commits]

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@@ -160,6 +182,20 @@ class SampleProfileMatcher {
   void runStaleProfileMatching(const Function &F, const AnchorMap &IRAnchors,
                                const AnchorMap &ProfileAnchors,
                                LocToLocMap &IRToProfileLocationMap);
+  void findIRNewCallees(Function &Caller,
+                        const StringMap<Function *> &IRNewFunctions,
+                        std::vector<Function *> &IRNewCallees);
+  float checkFunctionSimilarity(const Function &IRFunc,
+                                const FunctionId &ProfFunc);
+  bool functionIsRenamedImpl(const Function &IRFunc,
+                             const FunctionId &ProfFunc);
+  bool functionIsRenamed(const Function &IRFunc, const FunctionId &ProfFunc);
+  void
+  runFuncRenamingMatchingOnProfile(const StringMap<Function *> &IRNewFunctions,
+                                   FunctionSamples &FS,
+                                   FunctionMap &OldProfToNewSymbolMap);
+  void findIRNewFunctions(StringMap<Function *> &IRNewFunctions);
+  void runFuncLevelMatching();
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WenleiHe wrote:

nit: `runCallGraphMatching`

https://github.com/llvm/llvm-project/pull/92151