[clang] [llvm] [PowerPC] Tune AIX shared library TLS model at function level by heuristic (PR #84132)

[Felix via llvm-commits]

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@@ -3369,6 +3369,59 @@ SDValue PPCTargetLowering::LowerGlobalTLSAddressAIX(SDValue Op,
   bool Is64Bit = Subtarget.isPPC64();
   bool HasAIXSmallLocalExecTLS = Subtarget.hasAIXSmallLocalExecTLS();
   TLSModel::Model Model = getTargetMachine().getTLSModel(GV);
+  // Initialize TLS model opt setting lazily:
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orcguru wrote:

Sure. Created static function guarded by `Subtarget.hasAIXShLibTLSModelOpt()`. Thank you for the suggestion!

https://github.com/llvm/llvm-project/pull/84132