[llvm] [NFC]Refactor static data splitter (PR #125758)

[David Li via llvm-commits]

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@@ -46,12 +46,12 @@ class StaticDataSplitter : public MachineFunctionPass {
   const MachineBlockFrequencyInfo *MBFI = nullptr;
   const ProfileSummaryInfo *PSI = nullptr;
 
-  // Returns true iff any jump table is hot-cold categorized.
-  bool splitJumpTables(MachineFunction &MF);
+  void updateStats(bool ProfileAvailable, const MachineJumpTableInfo *MJTI);
+  void updateJumpTableStats(bool ProfileAvailable,
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david-xl wrote:

document the methods?

https://github.com/llvm/llvm-project/pull/125758