[lld] [lld] Merge equivalent symbols found during ICF (PR #134342)

[Pranav Kant via llvm-commits]

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@@ -535,14 +558,28 @@ template <class ELFT> void ICF<ELFT>::run() {
   auto print = [&ctx = ctx]() -> ELFSyncStream {
     return {ctx, ctx.arg.printIcfSections ? DiagLevel::Msg : DiagLevel::None};
   };
+
+  EquivalenceClasses<Symbol *> symbolEquivalence;
   // Merge sections by the equivalence class.
+  // Merge symbols identified as equivalent during ICF
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pranavk wrote:

done. thank you for reviewing.

https://github.com/llvm/llvm-project/pull/134342