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

[Snehasish Kumar via llvm-commits]

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@@ -1340,6 +1344,19 @@ unsigned MachineJumpTableInfo::createJumpTableIndex(
   return JumpTables.size()-1;
 }
 
+bool MachineJumpTableInfo::updateJumpTableEntryHotness(
+    size_t JTI, MachineFunctionDataHotness Hotness) {
+  assert(JTI < JumpTables.size() && "Invalid JTI!");
+  // Note record the largest hotness is important for mergable data (constant
+  // pools). Even if jump table instances are not merged, record the largest
+  // value seen fwiw.
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snehasish wrote:

nit: drop 'fwiw`.

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