[llvm] [CodeGen] Introduce Static Data Splitter pass (PR #122183)

[Ellis Hoag via llvm-commits]

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@@ -1340,6 +1344,15 @@ unsigned MachineJumpTableInfo::createJumpTableIndex(
   return JumpTables.size()-1;
 }
 
+void MachineJumpTableInfo::updateJumpTableHotness(size_t JTI,
+                                                  DataHotness Hotness) {
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ellishg wrote:

If this function returned `true` only when the hotness is actually changes, then we could get a more accurate value for `NumChangedJumpTables` later

https://github.com/llvm/llvm-project/pull/122183