[llvm] [AsmPrinter][ELF] Support profile-guided section prefix for jump tables' (read-only) data sections (PR #122215)

[Snehasish Kumar via llvm-commits]

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@@ -2885,7 +2901,13 @@ void AsmPrinter::emitJumpTableImpl(const MachineJumpTableInfo &MJTI,
   const TargetLoweringObjectFile &TLOF = getObjFileLowering();
   const Function &F = MF->getFunction();
   const std::vector<MachineJumpTableEntry> &JT = MJTI.getJumpTables();
-  MCSection *JumpTableSection = TLOF.getSectionForJumpTable(F, TM);
+  MCSection *JumpTableSection = nullptr;
+  if (TM.Options.EnableStaticDataPartitioning) {
+    JumpTableSection =
+        TLOF.getSectionForJumpTable(F, TM, &JT[*JumpTableIndices.begin()]);
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snehasish wrote:

Maybe `s/*JumpTableIndices.begin()/JumpTableIndices.front()`?

https://github.com/llvm/llvm-project/pull/122215