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

[Lei Wang via llvm-commits]

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@@ -160,6 +187,23 @@ class SampleProfileMatcher {
   void runStaleProfileMatching(const Function &F, const AnchorMap &IRAnchors,
                                const AnchorMap &ProfileAnchors,
                                LocToLocMap &IRToProfileLocationMap);
+  std::pair<Function *, bool>
+  findOrMatchNewFunction(const FunctionId &ProfCallee,
+                         FunctionMap &OldProfToNewSymbolMap,
+                         const std::vector<Function *> &NewIRCallees);
+  std::vector<FunctionSamples *> sortFuncProfiles(SampleProfileMap &ProfileMap);
+  void findNewIRCallees(Function &Caller,
+                        const StringMap<Function *> &newIRFunctions,
+                        std::vector<Function *> &NewIRCallees);
+  bool functionMatchesProfileHelper(const Function &IRFunc,
+                                    const FunctionId &ProfFunc);
+  bool functionMatchesProfile(const Function &IRFunc,
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wlei-llvm wrote:

By "documentation" you meant to add a comment like Doxygen style, right? If so, added more documentations.(I realized I get used to add the comments in the cpp file..., thanks for the suggestion) 

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