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

[via llvm-commits]

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@@ -80,26 +96,32 @@ class SampleProfileMatcher {
 public:
   SampleProfileMatcher(Module &M, SampleProfileReader &Reader,
                        const PseudoProbeManager *ProbeManager,
-                       ThinOrFullLTOPhase LTOPhase)
-      : M(M), Reader(Reader), ProbeManager(ProbeManager), LTOPhase(LTOPhase){};
-  void runOnModule();
+                       ThinOrFullLTOPhase LTOPhase,
+                       std::shared_ptr<ProfileSymbolList> PSL)
+      : M(M), Reader(Reader), ProbeManager(ProbeManager), LTOPhase(LTOPhase),
+        PSL(PSL) {};
+  void runOnModule(FunctionMap &SymbolMap);
   void clearMatchingData() {
     // Do not clear FuncMappings, it stores IRLoc to ProfLoc remappings which
     // will be used for sample loader.
     FuncCallsiteMatchStates.clear();
   }
 
 private:
-  FunctionSamples *getFlattenedSamplesFor(const Function &F) {
-    StringRef CanonFName = FunctionSamples::getCanonicalFnName(F);
-    auto It = FlattenedProfiles.find(FunctionId(CanonFName));
+  FunctionSamples *getFlattenedSamplesFor(const FunctionId &Fname) {
+    auto It = FlattenedProfiles.find(Fname);
     if (It != FlattenedProfiles.end())
       return &It->second;
     return nullptr;
   }
-  void runOnFunction(Function &F);
-  void findIRAnchors(const Function &F, AnchorMap &IRAnchors);
-  void findProfileAnchors(const FunctionSamples &FS, AnchorMap &ProfileAnchors);
+  FunctionSamples *getFlattenedSamplesFor(const Function &F) {
+    StringRef CanonFName = FunctionSamples::getCanonicalFnName(F);
+    return getFlattenedSamplesFor(FunctionId(CanonFName));
+  }
+  void runBlockLevelMatching(Function &F);
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WenleiHe wrote:

nit: `runCFGMatching`

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