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Author: diggerlin

llvm/lib/Target/PowerPC/PPCISelLowering.cpp

@@ -3434,6 +3434,8 @@ SDValue PPCTargetLowering::LowerGlobalTLSAddressAIX(SDValue Op,
   if (Subtarget.hasAIXShLibTLSModelOpt())
     updateForAIXShLibTLSModelOpt(Model, DAG, getTargetMachine());
 
+  // Whenever accessing the TLS variable, it is done through the TC entries.
+  // Therefore, we set the DAG to use the TOC base.
   setUsesTOCBasePtr(DAG);
 
   bool IsTLSLocalExecModel = Model == TLSModel::LocalExec;